124results about How to "Avoid frictional collisions" patented technology

The invention discloses a boxing machine which comprises a feeding mechanism and a boxing mechanism. The feeding mechanism comprises a first rack, a bottle conveying device and a box taking device, the boxing mechanism comprises a second rack and an upper cover closing device arranged on the second rack, the feeding mechanism further comprises a tray conveying device, a bottle taking wok position and a tray taking work position are arranged on the first rack, and the output end of the bottle conveying device and the output end of the tray conveying device correspond to the bottle taking work position and the tray taking work position respectively. The upper cover closing device comprises a support, a first swing arm and a second swing arm are hinged to the support, the first swing arm and the second swing arm are in transmission connection with a driving device, an inserting tongue shifting pawl and an inserting tongue locating pawl which are in mismatching cooperation are arranged at the end of the first swing arm and the end of the second swing arm respectively, and a tongue lifting step and a tongue pressing step which are opposite are arranged on the inserting tongue shifting pawl. The boxing machine prevents collision and friction between bottles in the transportation process by adding trays in the boxing process, and is higher in boxing efficiency and better in effect.

The invention discloses a multipurpose printer which can print a flexible line pipe, also can print a hard flat plate, is small in size and is low in cost. The printer comprises a rack, a control circuit disposed on the rack, a printing head device which can print a character code on the surface of a printing material and can move up and down, a signal collection induction assembly which automatically detects the position information of the printing material and prints the type information of the material, a conveying mechanism which is used for conveying the printing material to a printing region and a cutting region, and a plane substrate, wherein the table top of the plane substrate can be used for conveying the line pipe and the flat plate. According to the invention, the printer can achieve the printing of the line pipe and the flat plate, so the printer is a pioneering printer. The printer can easily achieve the printing of number characters, patterns and characters of the line pipe with the diameter from 2mm to 50mm and the flat plate with the width from 5mm to 80mm. The printer is simple in structure, is low in manufacture cost, is smooth in running of the material, is stable in printing effect, and is wide in application range.

The invention relates to an automatic battery box unmanned production line and process. The automatic battery box unmanned production line comprises one or more production parts and a packaging part;conveying lines are arranged at the discharging ends of the production parts, the production parts comprise a plurality of production modules linearly arrayed in the conveying direction of the conveying lines, battery boxes output after being subjected to automatic machining forming, trimming, detecting and waste-removing treatment by all the production modules are transferred to the conveying lines and driven by the conveying lines to be conveyed to the position in front of the packaging part, and the battery boxes are arranged in parallel in the width direction of the conveying lines; and the packaging part is arranged at the tail ends of the conveying lines and comprise one or more stacking parts located on the same straight line as the conveying lines, and a grabbing mechanism, and through the grabbing mechanism, the battery boxes arranged in parallel on the conveying lines are transferred to the stacking parts to be packaged. The problems that in the prior art, during battery boxproduction, the production automation degree is low, the production efficiency is low, and the functions of assembly line type automatic trimming detection and packaging of the battery boxes are not achieved are solved.

The invention relates to an unmanned intelligent production system with multiple production lines for battery plastic housings. The unmanned intelligent production system with the multiple productionlines for the battery plastic housings comprises a feeding part, multiple production parts and a transferring part, wherein the feeding part is used for concentratedly feeding raw materials for the production parts; the transferring part comprises an in and out device and multiple transferring devices; multiple battery boxes which are automatically processed and formed, trimmed, detected and removed with defectives through the production parts are sequentially and automatically stacked into packaging boxes one by one through packaging devices correspondingly matched with the production parts,and the fully stacked packaging boxes are conveyed to the in and out device through the transferring devices so as to be automatically transferred to the next working procedure; and meanwhile, the transferring devices load the empty packaging boxes on the in and out device and transfer the packaging devices requiring the empty packaging boxes. The unmanned intelligent production system with the multiple production lines for the battery plastic housings provided by the invention solves the problems that a battery box production workshop is low in production efficiency, high in labor intensity,poor in workshop environment so as to influence the product quality, and low in automation degree.

The invention relates to an oil immersing device, in particular to a gear oil immersing device of an improved structure. According to the technical scheme, the gear oil immersing device of the improved structure comprises an oil immersing tank for accommodating liquid-state infiltration oil; a liquid drain pipe is arranged at the bottom of the oil immersing tank; an electric heating pipe is arranged in the center in the oil immersing tank; a rail plate is arranged over the oil immersing tank; a pressing cylinder capable of driving the rail plate to enter the oil immersing tank is mounted on the rail plate; the other end of the pressing cylinder is fixed through a fixed frame; multiple vertical brackets are arranged below the rail plate; and multiple hanging frames are arranged on the vertical brackets at intervals in a upward slanting mode. The gear oil immersing device of the improved structure has the following advantages that the gear oil immersing device is reasonable in structure, high in automation degree and high in working efficiency, facilitates reduction of the working intensity of workers, and improves the product quality.

The invention relates to automatic battery box production equipment which comprises an injection molding machine for automatically injection molding battery boxes, a battery box after-treatment processing line and a manipulator. The battery boxes molded on the injection molding machine are taken out to the battery box after-treatment processing line through the manipulator, so that the operationscomprising automatically trimming opening edge parts, detecting internal air-tightness and removing wastes are carried out sequentially; and according to the after-treatment processing line, the battery boxes trimmed at a trimming station are transferred to a detection station through a transferring mechanism, and meanwhile, the battery boxes detected at a detecting station are transferred to a rejecting station. The automatic battery box production equipment provided by the invention solves the problems that in the battery box production process, equipment does not have automatic trimming, detecting and waste removing functions and is poor in trimming and detecting reliability, and the batter box quality is hard to ensure.

The invention provides a gasket, which can be spirally sleeved on a threaded spinner, and under the action of an external rotating force, a part (contacted with the threaded spinner) of the gasket can be deformed, therefore, the gasket is provided with a thread matched with a thread of the threaded spinner. The invention also provides a fixing device which comprises a threaded spinner and a gasket part, wherein the threaded spinner is spirally fixed on a component, the gasket part is spirally sleeved on the threaded spinner, a part (contacted with the threaded spinner) of the gasket is provided with a thread matched with a thread of the threaded spinner, and the thread of the gasket is formed by that a gasket is spirally sleeved on the threaded spinner and then acted by an external rotating force. The invention also provides a distribution box using the fixing device. As the gasket part is spirally engaged with the threaded spinner, a situation that the threaded spinner and the gasket part are always arranged together and not lost and separated can be ensured.

The invention discloses an externally used Chinese medicine preparation for curing diabetic foot, which comprises the following materials: 10 to 30 parts of psoralea fruit, 10 to 30 parts of purslane, 10 to 30 parts of clematis root, 10 to 30 parts of notoginseng, 10 to 30 parts of frankincense, 10 to 30 parts of myrrh, 10 to 30 parts of rhubarb, 10 to 30 parts of yellow corktree bark, 10 to 30 parts of calamine, 10 to 30 parts of cortex dictamni radicis, 10 to 30 parts of fired garden burnet, 10 to 30 parts of safflower, 10 to 30 parts of broom cypress, 10 to 30 parts of hyacinth bletilla, 10 to 30 parts of rhizome of drynaria, 10 to 30 parts of Chinese angelica root, 10 to 30 parts of earthworm, and 10 to 30 parts of minium. The externally used Chinese medicine preparation promotes local blood circulation and the growth of granulation tissue, and protects wounded area, prevents the wounded area from being rubbed and collided, can also isolate the wounded area from the environment, and reduce the occurrence rate of bacterial infection, thereby being capable of greatly improving the curative ratio of DF, and obviously reducing the healing time of ulcer surfaces. Obvious untoward reactions are not discovered during treatment, so that the externally used Chinese medicine preparation is safe and effective to be applied to clinical work, and is worth of further amplification.

The invention relates to a perforating and adsorbing process for a soft foam core body of a liquid sanitary napkin, and a production device for the soft foam core body comprises a rack, and a blanking device, a pressing device, a perforating device, an adjusting device, a driving device and a cutting roller device which are sequentially arranged on the rack, the perforating device comprises a first rotating roller and a second rotating roller which are rotatably and correspondingly arranged on the rack, an adsorption cavity is formed in middle of the first rotating roller, one end of the first rotating roller is connected with a rotating connector, the rotating connector is connected with an adsorption device, at least one perforating area is arranged on the first rotating roller, and a plurality of cutters are arranged on the perforating area. The invention relates to the field of disposable hygienic products, the adsorption device adsorbs excess materials into the adsorption cavity and then discharges the excess materials out of the adsorption cavity, perforating efficiency is improved, quality of an absorption core body is improved, and technical problems that when an absorption core body is perforated, excess materials affect the production environment, equipment is prone to being damaged, and perforating quality of the absorption core body is affected are solved.

The invention provides an electroplating product support frame structure. The electroplating product support frame structure comprises at least one electroplating product. A sprue is connected to theouter edge of each electroplating product. Each sprue is connected with a support frame arranged around the corresponding electroplating product. and a support column is arranged on each support frame. A positioning protruding column is arranged at one end of each support column, and a positioning pit matched with the positioning protruding column is arranged at the other end of each support column when the support columns are stacked on each other. The height of each support column is higher than the thickness of each electroplating product, and the front surface and the bottom surface of each electroplating product are correspondingly arranged in the horizontal plane formed by the two end surfaces of the corresponding positioning protruding column and the corresponding positioning pit onthe corresponding supporting column. Each positioning protruding column is in a truncated cone shape, and each positioning pit is tapered and is in tapered surface fit with the corresponding positioning protruding column. The multiple support columns are arranged and uniformly arranged in the circumferential direction of each support frame. The electroplating product support frame structure is convenient to stack, the electroplating efficiency is improved, and meanwhile it can be ensured that electroplated parts are not bumped and scratched during transportation.

The invention discloses a power variable stay cable permanent magnet eddy current retarder and belongs to the field of bridge structural vibration control. The power variable stay cable permanent magnet eddy current retarder comprises a rigid shaft, a second linear movement mechanism, a fixed disc, a conductor disc, a driving gear, at least three driven gears of different radiuses, and at least one pair of permanent magnets opposite in magnetic poles; one end of the rigid shaft is connected with the second linear movement mechanism, and the other end of the rigid shaft sequentially penetratesthrough the fixed disc, the conductor disc and the driven gears; the fixed disc is fixed relative to the rigid shaft, the conductor disc is fixed relative to the driven gears, and the driven gears areconnected with the rigid shaft through bearings; the permanent magnets are arranged on the surfaces of the fixed disc. According to the power variable stay cable permanent magnet eddy current retarder, the conductor disc moves inside the magnetic field of the permanent magnets to cut magnetic lines to produce eddy current damping and accordingly to dissipate vibrating energy of a stay cable and inhibit vibration of the stay cable; through engagement between the driven gears different in radius and the driving gear, the energy consumption power can be adjust, high adaptability to external loadcan be achieved, and the power variable stay cable permanent magnet eddy current retarder can be in an optimum load operating sate for a long time.

The invention relates to a spraying device, in particular to a device of a special improved structure for spraying lubricating oil to gears. According to the technical scheme, the device of special improved structure for spraying lubricating oil to gears comprises a spraying box body, wherein a gear placing rack is arranged on the spraying box body through a supporting screen; the gear placing rack comprises a spherical arc-shaped plate; a plurality of through holes which are annular are formed in the surface of the spherical arc-shaped plate; a positioning pipe is inserted into each through hole; a lubricating oil collecting cavity is formed in the lower side of the box body; a vertical rod is connected to the middle of the gear placing rack; the top of the vertical rod is connected to amotor shaft; the structure also comprises a spraying device which comprises an oil bucket, a pump, a hydraulic cylinder, a telescopic rod, a slide bar and a nozzle. The structure provided by the invention has the advantages that the device for spraying lubricating oil to gears is reasonable in structure, sprays lubricating oil to the surfaces of the gears through the nozzle automatically; the quantity of operators needed is reduced; the automatic production efficiency is high; and the labor intensity is small.

The invention relates to the field of economy and finance, in particular to a portable economy and finance type document storage device which comprises a storage shell and a bottom shell. The storageshell is installed on the top of the bottom shell and internally provided with a plurality of partition plates. The partition plates divide the internal space of the storage shell into a plurality ofcontaining spaces. Each containing space is internally provided with a placement mechanism. The bottom end of each containing space is provided with a slide groove. The bottom end of each slide grooveis provided with a telescopic mechanism. Each telescopic mechanism is installed at the bottom of the storage shell. A plurality of limiting mechanisms are arranged in the bottom shell. A detecting mechanism is arranged beside each limiting mechanism. An operating mechanism is arranged at the front end of the bottom shell. A storage battery and a controller are arranged in the bottom shell. The storage battery, the limiting mechanisms, the operating mechanism and the detecting mechanisms are all electrically connected with the controller. By means of the document storage device, documents areclassified to be stored and are convenient to manage, the disorder of the documents is avoided, and it can be avoided that workers collide with and rub the storage shell when taking the documents.

The invention discloses a high-speed dispersing device for fire retardant slurry. The device comprises a base (6), a hydraulic cylinder (2) is arranged on the base (6) and provided with a rack (1), the rack (1) is provided with a left stirring shaft (13), a middle stirring shaft (12) and a right stirring shaft (3) which are arranged downwards, the lower portion of the left stirring shaft (13) is provided with two stirring discs (11), each stirring disc (11) comprises a disc body (9), and stirring pieces (10) which are arranged in a vertically-staggered mode are arranged at the periphery of each disc body (9); the lower end of the middle stirring shaft (12) is provided with a rotating arm (7), and the rotating arm (7) is provided with rotating rollers (8); the lower portion of the right stirring shaft (3) is provided with two spiral rotary-stirring pieces (4). By means of the high-speed dispersing device, the slurry can be dispersed uniformly and stirred sufficiently, the stirring effect can be good, and stirring efficiency can be improved.

The invention discloses a new energy automobile chassis. Mounting grooves are equidistantly formed in the top end of the chassis, and battery pack monitoring and protecting mechanisms are movably clamped in the mounting grooves; a heat dissipation and energy utilization mechanism is fixedly connected to one side of the top end of the chassis; a flat cable bundling mechanism is embedded into the middle position of the bottom end of the chassis; and the bottom end of the chassis is fixedly connected with a buffer damping mechanism, and battery boxes are embedded in the mounting grooves. According to the new energy automobile chassis, the battery pack monitoring and protecting mechanisms are arranged, battery packs are separately placed through the battery boxes, and the influence between thebattery packs is avoided, so that when parts of the battery packs are damaged, the other battery packs can still supply power to an automobile, and driving of the automobile is guaranteed; and meanwhile when the interiors of the battery packs swell and swells are formed due to the fact that the temperature of batteries is too high, ejector pins are pushed to be matched with supporting plates to push fixing rods to ascend.

The invention relates to an active control device for a blade tip clearance of an axial flow gas turbine. The active control device comprises a gas compressor cylinder, a memory alloy mechanism, gas compressor moving blades and an active control mechanism, wherein a groove is formed in the surface of the inner wall of the gas compressor cylinder in the circumferential direction of the inner wall;the memory alloy mechanism is mounted in the groove in a sliding manner in the circumferential direction of the inner wall of the gas compressor cylinder, and is axially fixed along the inner wall ofthe gas compressor cylinder; the active control mechanism comprises a cooling fan, a heating resistance wire and a thermocouple sensor; the cooling fan is used for providing air flow for heat dissipation for the memory alloy mechanism; the heating resistance wire is used for heating the memory alloy mechanism; and the thermocouple sensor is used for detecting the real-time temperature of memory alloy and converting the temperature into an electric signal. The active control device solves the problem that a gas compressor in the prior art cannot be dynamically controlled in a start-stop stage and an operation stage, and the deformation temperature of a memory alloy part is dynamically controlled through the active control mechanism, so that optimization of the blade tip clearance is realized, and the efficiency of the gas compressor is improved.

The invention discloses a door lock with a silencing effect, comprising a locking box, wherein the locking box is internally provided with a transmission mechanism and a locking tongue capable of doing axial and telescopic movement; the transmission mechanism comprises a sliding block; one side of the sliding block is provided with a sliding block spring; and one end of the sliding block spring is fixedly arranged on the sliding block by a second sliding block rubber pad, and the other end of the sliding block spring extends out of the sliding block, and the extending line is intersected with a fixed part in the locking box. The door lock disclosed by the invention has the advantages that on one hand, by use of cushioning parts such as the spring, the moving speed of the transmission mechanism is reduced; and on the other hand, since a great amount of nonmetallic silencing materials such as rubber rings and rubber pads are used, the friction and the collision among metal parts are furthest avoided, so that the noise caused by the door lock is greatly reduced.

The invention discloses a camshaft decompressor. The camshaft decompressor comprises a camshaft provided with an exhaust cam, a timing gear sleeved on the camshaft and a decompression shaft hinged on the camshaft and adjacent to the exhaust cam. The decompression shaft exceeds a base circle of the exhaust cam to enable a valve to be opened, one side face of the timing gear is provided with a concave surface, a first flyweight and a second flyweight which are bent and positioned in two semicircles of the concave surface respectively are hinged in the concave surface, the first flyweight is provided with a first free end and a second free end which are opposite in rotational direction, the second flyweight is provided with a third free end and a fourth free end which are opposite in rotational direction, the first free end and the third free end are in linkage, a notch facing the circle center of the timing gear is arranged at the second free end, the decompression shaft comprises a stirring portion and a decompression support portion which are mutually angled, the stirring portion extends into the notch, and the decompression support portion extends axially along the camshaft. By the aid of the flyweights driven under the action of centrifugal force, the decompression shaft is stirred to leave or be positioned below a tappet so as to achieve automatic decompression during starting of a diesel engine, so that operation is simple, and labor is saved.

The invention relates to a continuous production line for plastic battery cases. The continuous production line comprises a forming part, a transporting part and a packing part, wherein the forming part comprises a plurality of forming modules; the transporting part comprises a transporting line and transporting devices; the battery cases formed after the forming modules are automatically processed and formed, trimmed, detected and rejected are transported to parts above the transporting line, complete 90-degree overturning above the transporting line and then move downwards vertically to thetransporting line; the forming modules are arranged in the transporting direction of the transporting line; the transporting device corresponding to the previous forming module is used for transporting the formed battery case on the transporting line; and when the battery case is transported on a next forming module, the transporting device corresponding to the next forming module is used for transporting the formed battery case on the transporting line; and the battery cases formed by the forming modules are transported in parallel. The continuous production line solves the problems that thetrimming detecting efficiency of the battery cases is low, human resources are consumed, the quality of the battery cases is difficult to ensure, and the battery cases are easily overturned in the transporting process.

The invention discloses a cable reel paying-off device, and relates to the technical field of construction paying off. According to the technical scheme, the cable reel paying-off device comprises a supporting underframe, and a pair of supporting rods are arranged on the supporting underframe. The two supporting rods are arranged parallel to each other. The supporting rods are arranged in a tilting mode in the direction close to the supporting underframe, and the included angle between the plane where the supporting rods are located and the plane where the supporting underframe is located refers to an acute angle. Shaft levers are horizontally arranged between the two supporting rods and are further detachably connected with the supporting rods. Each shaft lever is sleeved with a pluralityof cable reels. The shaft levers are connected with a plurality of spacing tubes in a sleeved mode. The spacing tubes can circumferentially rotate in the length directions of the shaft levers. The spacing tubes and the cable reels are arranged at intervals. The cable reel paying-off device has the advantages that the cable reels can be neatly arrayed, paying-off work can be done without cooperation by two persons, the phenomenon that cables are wound together cannot happen in the using process, operation is convenient, manpower is saved and working efficiency is improved.

The invention relates to the technical field of torque detection for refrigerator compressor production, and especially relates to torque detection equipment for refrigerator compressor production, and a working method thereof. The torque detection equipment comprises a base table, a rotating assembly, a conveying mechanism, consignment assemblies, a fixing assembly and a supporting plate. A material is automatically consigned through the consignment assemblies, and the equipment detection operation is streamlined, and the detection speed of the equipment on a refrigerator compressor is further improved, so that the working efficiency of the equipment is higher; the two consignment assemblies are arranged to cooperate for consignment, meanwhile, the two consignment assemblies move independently, and the two consignment assemblies can fix the refrigerator compressor to a certain degree in the consignment process of the refrigerator compressor, and the refrigerator compressor is prevented from falling in the consignment process; and the two consignment assemblies are mutually independent, and the distance between the two consignment assemblies can be flexibly adjusted, so the refrigerator compressors of different sizes and models can be placed between the two consignment assemblies.

The invention discloses a lever centrifugal clutch comprising a driving disc, at least two centrifugal mechanisms and a driven disc. Each centrifugal mechanism comprises a centrifugal member, a deformed lever and a tensions spring and further comprises a positioning post. Each positioning post is movably sleeved with one end of the centrifugal member of one centrifugal mechanism and one end of the deformed lever on the adjacent centrifugal mechanism sequentially from bottom to top. Each tension spring allowing the deformed bars to return is disposed between every two adjacent deformed levers. The deformed levers are overlap-fastened to the centrifugal members by means of fitting of grooves and tongues and apply forces to the centrifugal members. As each centrifugal mechanism comprises only one positioning post, the structure of the driving disc is simplified, the manufacturing process is simplified, the production cost is lowered, the structure of the clutch is simplified, mounting and demounting are facilitated, maintenance cost is lowered, and workload is reduced for workers; shockproof washers are provided on the centrifugal members and the deformed levers, shocking of the clutch is avoided, noise is reduced, and the service life of the clutch is prolonged.

The invention belongs to the technical field of the obstetrics and gynecology department, and particularly relates to an adjustable sterilizer for the obstetrics and gynecology department. For solvingthe problems that when an existing sterilizer for the obstetrics and gynecology department is used for sterilizing surgical instruments, the surgical instruments are directly placed in a sterilizingbox to be stacked together for sterilization, the sterilization effect is poor, and meanwhile, the surgical instruments stacked together rub one another and then are damaged, the following scheme is provided: the adjustable sterilizer for the obstetrics and gynecology department comprises a sterilizing box and a fixing frame, sliding plates are fixedly connected to the outer walls of the oppositesides of the fixing frame, and a sliding groove is formed in the outer wall of each of the two sliding plates. According to the adjustable sterilizer for the obstetrics and gynecology department, by arrangement of a connecting plate, an adjusting block, a hydraulic cylinder, the sliding plates and an upper limiting frame, when sterilized, the surgical instruments are placed on the upper limiting frame and a lower limiting frame, the height of the upper limiting frame is adjusted according to the heights of the surgical instruments, and therefore, the sterilizer can be adjusted; and meanwhile,the surgical instruments are placed between the upper limiting frame and the lower limiting frame, collision and friction of the surgical instruments are avoided, and the use value of the sterilizer is improved.

The invention discloses an industrial robot base convenient to install. The base comprises a base body, a cylindrical groove is formed in the middle of the upper face of the base body, a stand column is fixed to the middle of the bottom face of the cylindrical groove through bolts, the upper end of the stand column is provided with a downward pressing column in a sleeving and sliding mode, the stand column is connected with a reset spring located below the downward pressing column in a sleeving mode, a hinged disc is integrally formed at the lower end of the side face of the downward pressing column, a plurality of connecting rods are evenly hinged to the side face of the hinged disc, a plurality of through holes are evenly formed in the side face of the base body, a plurality of pairs of supporting rods are integrally formed at the upper end of the side face of the base body, a pressing rod is rotationally arranged between the upper ends of each pair of supporting rods, the other ends, penetrating through the through holes, of the connecting rods are hinged to the lower ends of the pressing rods, and pressing blocks are fixed to the upper ends of the pressing rods through bolts. The industrial robot base has the advantages that an industrial robot can be stabilized conveniently, and installation is convenient.

The invention discloses a product transfer adsorption structure of a braider. The structure comprises a Y-axis module, an X-axis module, a Z-axis module, an adsorption device, a first detecting structure and a second detecting structure. The X-axis module comprises a motor, a ball screw, linear guide rails, bearing pedestals and a base support. The Y-axis module comprises a motor, a ball screw, two linear guide rails, bearing pedestals and base supports. The X-axis module moves along the linear guide rials of the Y-axis module. The Z-axis module is fixed to the X-axis module and moves along the linear guide rails of the X-axis module. The adsorption device and the first detecting structure are fixed to the Z-axis module and move along with the Z-axis module. The second detecting structureis fixed to the back face of a countertop plate. The structure is ingenious in design, accurate in adsorption position, capable of automatically monitoring the product quality, high in structure response speed, long in service life and capable of improving the product quality.

The invention discloses an air pump which is used for a sphygmomanometer and comprises an air bag and an air faucet. The air faucet is communicated with the air bag, an electromagnetic actuator is further connected with the air bag and comprises a coil winding and a permanent magnet block, and the air bag can be driven under electromagnetic induction movement between the coil winding and the permanent magnet block to deform and suck or squeeze air, so that air pressures can be outputted. The air pump has the advantages that electromagnetic driving modes are matched with the air bag, so that acuff air bag of the sphygmomanometer can be inflated and pressurized; the air bag in the air pump can periodically deform in expansion and contraction manners and is matched with the air faucet, accordingly, the air can be sucked, and the air pressures can be outputted; electromagnetic induction effects can be realized by the coil winding and a permanent magnet, and rotors can periodically move, so that the air bag can be compressed or stretched and can be inflated and deflated; rubbing and collision between mechanical components of a driving air pump in the traditional design can be prevented, noise generated when equipment works can be lowered to a great extent, and accordingly the technical problems of inaccurate blood pressure detection results easily caused by noise interference can be solved. The invention further discloses the electronic sphygmomanometer.

The invention provides a hydraulic machine. The hydraulic machine comprises a pressing machine, a support, steel balls, a base, a lower supporting plate and an upper supporting plate, wherein the base is provided with a fixed bolt for fixing a plastic impeller of a water pump of an automobile engine; the lower supporting plate and the base are sequentially arranged at the top end of the support, and the center of each of the base and the lower supporting plate is provided with a through hole; the upper supporting plate is fixed above the support through guide pillars, the center of the top end of the upper supporting plate is provided with the pressing machine, and an output shaft of the pressing machine is connected with a guiding rod; the diameter of each through hole is greater than or equal to that of each steel ball, the plastic impeller of the water pump of the automobile engine is firstly fixed on the base, and then the steel balls pass through an inner hole of the plastic impeller of the water pump of the automobile engine from top to bottom under the pressure action of the guiding rod, so that the polished finish on the inner hole of the plastic impeller of the water pump of the automobile engine is realized. The hydraulic machine provided by the invention has the advantages that the precision of the inner hole of the plastic impeller of the water pump of the injection moulding automobile engine is improved, and the use is convenient.

The invention discloses a pipe cutting machine. The pipe cutting machine comprises a rack. The rack is provided with an outer cutter tube and an inner cutter assembly used for cutting a pipe. The inner cutter assembly comprises a rotary shaft and an eccentric cutter eccentrically mounted at one end of the rotary shaft. The rotary shaft drives the eccentric cutter to rotate. The inner cutter assembly is provided with a Y-axis displacement mechanism. The inner cutter assembly drives the rotary shaft through the Y-axis displacement mechanism to move in the pipe in the radial direction. During machining, the axis of a cutter shaft and the axis of the pipe are concentric, and the eccentric cutter is closely attached to the inner wall of the pipe. The pipe cutting machine facilitates pipe cutting and can drive the cutter assembly to feed and retract the cutter smoothly, protect the inner cutter assembly from collision and friction with the inner wall of the pipe and improve the production efficiency. The pipe cutting machine is simple in overall structure, easy to realize, good in machining quality, high in production efficiency and low in manufacturing cost.

The invention relates to a guiding device for a reactor control rod bundle. The guiding device for the reactor control rod bundle is characterized by comprising a shell and a core body arranged insidethe shell, wherein the core body comprises a bottom plate, a plurality of integrated guiding plates, a plurality of integrated guiding pipes and a plurality of fixing plates; the integrated guiding plates are longitudinally arranged on the bottom plate and are oppositely arranged; the integrated guiding pipes are longitudinally arranged on the bottom plate, are spaced from the guiding plates andare parallel to one another; the fixing plates are arranged on the guiding plates and the guiding pipes longitudinally at intervals in a sleeving manner, are used for fixing the guiding plates and theguiding pipes, and carries out total travel guiding on the control rod bundle, the circumstance that the control rod bundle is blocked or even jammed when passing through the guiding plates or / and the guiding pipes is avoided, abrasion of the control rod bundle is relieved, and an anti-rotation function of a lead screw roller nut type driving mechanism at any point in a process of lifting the control rod bundle can be fulfilled; and thus, collision friction between the control rod bundle and the guiding device is prevented, and safety control on a reactor is enhanced.

The invention relates to a barrel structure with an outer frame and a bottom support. The barrel structure comprises a framework, a liner and a tray, wherein the framework is arranged on the upper surface of the tray, the liner is arranged in the framework, a liquid inlet is formed in a top cover plate of the liner, and a liquid outlet is formed in a bottom face plate of the liner. The liner of the barrel structure adopts a ripple structure, therefore, the strength and the rigidity of side walls are substantially improved, deformation after the liner is filled with liquid is reduced, and frictional impact between the liner and the framework is avoided; by adopting cambered corners, stress can be effectively buffered, the barrel is prevented from being damaged, and the service life is prolonged; besides, bottom feet and the framework can form effective electrostatic leakage channels, so that potential safety hazards are eliminated, and the barrel can be used for holding flammable and explosive high-risk liquid. The framework protecting the liner facilitates transfer and storage, the cost is saved, and the safety is higher.