578results about How to "With self-locking ability" patented technology

The invention discloses an automatic package machine for corrugated cartons with different lengths. The automatic package machine comprises a rack. An initial material position containing area, a wrapping forming area and a carton sealing area are sequentially arranged on the rack in the carton conveying direction. A material conveying device is arranged below the initial material position containing area. A carton containing area is arranged in the wrapping forming area. A top face folding mechanism, a front end folding system and a tail end folding system are arranged in the carton containing area. A side face folding mechanism is arranged below the carton containing area. Each of the front end folding mechanism and the tail end folding mechanism comprises a side face duck tongue folding mechanism, a top face duck tongue folding mechanism and a bottom face duck tongue folding mechanism. A plurality of powerless transmission rollers are arranged in the carton sealing area in the length direction of the carton sealing area. A two-end carton sealing mechanism, a length direction carton sealing system and a width direction carton sealing system are arranged in the carton sealing area in the carton conveying direction. By means of the automatic package machine, packaging of carton type products of different specifications and different sizes can be achieved, and the application range is wide.

The invention relates to a slag pot tipping feeder which comprises two translational devices arranged on two parallel bracket beams, at least two clamping devices, as well as a support tripping frame, two gearings and at least one locking mechanism, wherein the support tripping frame is a circular framework which supports and limits the slag pot in the middle of the support tripping frame, and a drive trunnion is arranged on either side of the support tripping frame; each translational device comprises a translational support, two orbital slots, a telescopic traction hydraulic cylinder, and a plurality of groups of supporting shafts and wheels; the translational support is arranged between the two orbital slots and supports the slag pot tripping frame; the supporting shafts and the wheels are respectively arranged on the bottom of the translational support; the telescopic traction hydraulic cylinder is connected with the translational support; and each translational device parallelly moves the support tripping frame by a plurality of guide rails and guide wheels arranged along the bracket beam. The slag pot tipping feeder can safely support, clamp and trip the slag pot, and can steadily and reliably finish feeding by accurately controlling translational travel and tripping angle of the slag spot.

The invention discloses a universal tooling fixture for shaft parts, which comprises a base fixed on a workbench, a clamping mechanism, an adjusting mechanism and an angle adjusting mechanism. Using the general tooling and fixture for shaft parts described in the present invention, an angle adjustment mechanism is set to realize the placement of shaft parts at any angle and all-round rotation, and the adjustment mechanism is set to adjust different shaft diameters and different lengths. As well as adjusting the clamping position of shaft parts with various shaft diameters on the same shaft, a clamping mechanism with adjustment parts is set up to clamp shaft parts. This device makes shaft parts more accurate during processing, testing and assembly. Efficient and convenient, especially for fast switching when clamping different positions of different shaft parts, which brings great convenience, and can effectively solve the problem of single specification of clamping parts, inflexible placement and troublesome operation of existing shaft parts tooling fixtures, etc. Problem, the device is simple in structure, easy to use, low in cost, and easy to popularize.

The invention discloses a dodecagonal segment for shield tunnel construction. Two long bevel edges which are both splayed are arranged on the edges of the two transverse ends of the dodecagonal segment, a long transverse edge, a short bevel edge, an inwards-sunken transverse edge, a short bevel edge and a long transverse edge are sequentially formed from one end to the other end of the edge, with a greater transverse length, in the edges of the two longitudinal sides of the dodecagonal segment, a short transverse edge, a short bevel edge, an inwards-sunken transverse edge, a short bevel edge and a short transverse edge are sequentially formed from one end to the other end of the edge, with a smaller transverse length, in the edges of the two longitudinal sides of the dodecagonal segment. The invention also discloses a segment lining structure assembled by dodecagonal segments, and the adjacent dodecagonal segments are embedded and limited. According to the dodecagonal segment with a specific shape, the shape has a mounting guide function, so that the segment can be easily positioned; the dodecagonal segment lining structure can be continuously tunneled and spliced, so that the construction efficiency and the overall lining rigidity are remarkably improved.

The invention discloses a hanging type adaptive automatic drill pipe string discharge device, which consists of a pipe string discharger guide track, a hydraulic motor, a rotary encoder, a tackle, a worm gear and worm rotating device, a lead screw pair, an extension hydraulic cylinder, a movable arm, a triangular support, deviation rectifying hydraulic cylinders, masts, a lifting hydraulic cylinder, a mast inner guide rod, a manipulator, a double-axis horizontal inclination sensor and an electro-hydraulic proportional control system with a PID (proportion integration differentiation) adjusting function. The pipe string discharger guide track is fixed at the bottom of a tongue platform of a second-floor platform of a K-shaped derrick, a mounting foundation of the clamping manipulator is a double-layer lifting mast structure, and the external masts are mounted on the triangular support via universal joints and are driven by the two deviation rectifying hydraulic cylinders; the internal masts can slide along the external masts, when a parallelogram stretchable mechanism acts, the internal masts can be driven by the lifting hydraulic cylinder to move vertically, the lifting action of the internal masts can be synchronous to the stretching action, or the lifting action of the internal masts and the stretching action are carried out sequentially definitely, when a drilling rig is connected or disconnected, the internal masts are in a balancing and floating state, and the balancing and floating function is realized by a specific hydraulic loop and a control mode.

The invention discloses an automatic climbing and picking device and a picking method thereof. Since fruit trees grow irregularly and tree branches are vulnerable, manual fruit picking has a certain risk. The automatic climbing and picking device includes an upper rack, a lower rack, a lifting mechanism, an upward climbing mechanism, a downward climbing mechanism and a picking mechanism. The lifting mechanism includes a guiding rod, a guiding sleeve, a lifting screw rod, a lifting nut and a first driving assembly. The upward climbing mechanism and the downward climbing mechanism both include asecond driving assembly, a deflecting transmission assembly, a rotating shaft and a cuddling assembly. The picking mechanism consists of a first electric push rod, a second electric push rod, a thirdelectric push rod, a first picking arm, a second picking arm, an electric claw, a first picking steering engine and a second picking steering engine. An upward climbing function can be achieved, andfruits in a wide range can be picked through the retractable picking mechanism. The device can circumferentially move around a trunk and thus avoid branches on a climbing path.

The invention relates to the technical field of mechanical arms, in particular to a five-degree-of-freedom non-offset vertical multi-joint type electric mechanical arm. The five-degree-of-freedom non-offset vertical multi-joint type electric mechanical arm comprises a rotary worm and gear, a base, a rotary table, a small-arm motor, a small-arm worm and gear, a gripper, a wrist rotating motor, a wrist swinging motor, a wrist, a small arm, a large-arm worm and gear, a large-arm motor and a rotary motor, wherein the driving motors of the rotary motor, the large arm and the small arm drive the rotary table, the large arm and the small arm respectively through transmission of worm and gear mechanisms. The five-degree-of-freedom non-offset vertical multi-joint type electric mechanical arm has the advantages that the mechanisms for transmitting are simple in structure, the mechanical arm is enabled to have a self-locking function in static status, and low cost, simple structure, good dynamic property and convenience in mounting and dismounting are achieved.

The invention discloses a large-torque large-deflection-angle universal coupling testing stand which is applicable to testing of transmission capability, transmission efficiency and vibration performance of a universal coupling under large-torque condition when the input shaft and output shaft of the universal coupling have different deflection angles. A power device is fixedly installed on the stand body of the testing stand and connected with the input shaft of a transmission gear box through flanges, and the output shaft of the transmission gear box is connected with the input shaft of the universal coupling through flanges. The output shaft of the universal coupling is connected with a torque loader through flanges, and the torque loader is fixedly installed on the center line of a sector worm gear disc of a rotating angle adjusting device. The rotating angle scope of the testing stand is within +-45 degrees. When the testing stand conducts tests at a determined angle, the rotating angle adjusting device has self-locking function. A safe test process is thus ensured.

The invention discloses an agricultural high fruit picking device comprising a two wheel trolley. A lifting mechanism is movably connected to the upper portion of the two wheel trolley and is movably connected to a console; the console is movably connected to one end of a telescopic arm, the other end of the telescopic arm is movably connected to a balance mechanism, the top of the balance mechanism is connected to a shearing arm, and the bottom of the balance mechanism is connected to an accommodating bag. According to the device, the two wheel trolley replaces of a power transport vehicle to be adaptive to poor driving condition of an orchard; the telescopic arm replaces of a mechanical arm with multiple freedom degrees, weight is decreased, structure and control of the arm are simplified, and the moving space of the arm is saved; the suspended soft bag replaces of a fixed fruit conveying channel, the fruit conveying distance is shortened, and fruit damage is reduced; the device is more adaptive to the application for the orchard.

The invention relates to a workbench for grabbing and separating stacked parts. The workbench comprises a bearing workbench, a grabbing cantilever and a rotating vertical column, wherein a central support plate is arranged in the middle of the bearing workbench, a through hole I is formed in the left side of the upper end surface of the bearing workbench, a base support plate is arranged on the right side of the upper end surface of the bearing workbench, a motor I is arranged on the left side of the central support plate, the rotating vertical column is driven by the motor I to rotate through the transmission of a gear, a vertical column sleeving block is arranged on the rotating vertical column, a bearing is arranged on the vertical column sleeving block in a sleeving way, an outer ring of the bearing is clamped in the through hole I, a groove I and a groove II are formed in the right side surface of the rotating vertical column in parallel, a rack is arranged on the inner side surface of the groove I, a lever is arranged in the groove II, and the upper end of the lever is connected with a motor II. The bearing workbench is used as a support, and the stacked parts are grabbed and separated by the grabbing cantilever capable of rotating and lifting on the bearing workbench, so that the labor intensity of workers is reduced, and the workers are prevented from being injured during separation of sharp or heavy parts.

The invention discloses a robot system for inspection of an overhead power line. The robot system comprises an on-line execution system, a vehicle-mounted portable base station and a ground data management center, wherein the on-line execution system comprises an n-shaped hanging box, a camera, a roller, a protective telescopic shaft and a control driving device; the vehicle-mounted portable base station comprises a remote controller and a portable video terminal; the ground data management center comprises a server and a displayer. The robot system for inspection of the overhead power line, provided by the invention, has the using effects as follows: real-time video communication is realized, omnibearing multi-angle shooting ability is achieved, the problems of corrosion, broken strands, damage and the like of the power line can be accurately detected, and the robot system has an autonomous working mode and a remote control working mode. The robot system self is provided with a battery and the stored electric energy of the robot system can support the robot system to walk for 5 km of lines. The robot system is smooth in running, has the grade ability for climbing the grade of 15 degrees, can reliably span over shakeproof towers and towers on the power line, and has the self-locking ability to prevent accidental falling off.

The invention discloses an under-actuated highly-simulated finger integrating coupling and adaptive motion modes, and relates to an under-actuated highly-simulated finger. The existing under-actuated artificial finger is low in humanoid degree, poor in adaptive capability and insufficient in grasping force. The under-actuated highly-simulated finger comprises a base joint, a near finger knuckle, a middle finger knuckle and a far finger knuckle; a reducer casing is fixedly mounted on a base through a reducer casing mounting seat; the output shaft of a motor sequentailly penerates through the reducer casing and a bevel gear coupling and is connected with a first bevel gear; a second bevel gear is fixedly mounted on a worm and is meshed with the first bevel gear; a turbine sleeves an MCP shaft; the worm is meshed with the turbine; a third finger knuckle casing is connected with a second finger knuckle casing through a DIP shaft; the far finger knuckle sleeves the DIP shaft through a position sensor; a finger tip circuit board and a touch sensor circuit board are sequentially fixedly mounted in the third finger knuckle casing; touch sensor circuit colloid penetrates through the bottom of the third finger knuckle casing. The under-actuated highly-simulated finger is applied to intelligent robots.

The invention relates to a wood laminating material, in particular to a wood laminating material used for manufacturing transformer connecting pieces and a preparation method thereof, and more particularly relates to a material which can be processed into woody bolt or woody nut with an insulating function. The raw materials of the product provided by the invention comprises broad leaf miscellaneous tree veneers the water content of which is less than 4%, wherein, the thickness of the veneer is 1-2mm; and the adjacent veneers are arranged according to a sequential fiber direction or a mutually vertical fiber direction, and are superposed one by one into an assembly after being soaked in the insulating rubber, and formed after being carried out hot-pressing. The wood laminating material of the invention has good mechanical strength, arc resistance, higher resistivity, lower dielectric loss and a certain self-locking performance after being soaking in the oil. The product of the invention can be further processed into bolt plates or nut plates; the bolts and the nuts manufactured by the invention have the following advantages that each layer of rubber plate is soaked with modified alcohol-soluble phenol aldehyde resin, thus leading that the bolts and nuts have higher mechanical strength and uniform inner structure compared with an electric laminating wood board, avoiding the property of partial discharge generated by bubbles, making up for the shortcomings of the bolts prepared by phenolic bakelite and nylon, and being used in the transformer with the voltage more than 220KV.

The invention discloses a swing type avoidance-free three-dimensional garage. The garage comprises a base, a lower vehicle carrying plate, an upper vehicle carrying plate, an upper vehicle fetching drive device, a horizontal drive mechanism, a swing device, two swing rods, first hydraulic cylinders and a balancing device, wherein the lower vehicle carrying plate is arranged on the base through a lower vehicle fetching drive device; the upper vehicle carrying plate is arranged above the base through the upper vehicle fetching drive device; the upper vehicle fetching drive device comprises a first translation device which comprises a support frame, and a horizontal support is arranged at the upper part of the support frame; the horizontal drive mechanism drives the upper vehicle carrying plate to slide into or leave out of the horizontal support; the swing device comprises two first guide rails which are arranged on the base, and slide chutes are formed in the first guide rails in a concave manner; the swing rods slide along the slide chutes through rollers, and the upper ends of the two swing rods are hinged to front parts of two swing rod grooves which are formed in the bottom of the upper vehicle carrying plate in a concave manner; two cylinder bodies of the first hydraulic cylinders are hinged underground, and piston rods of the first hydraulic cylinders are hinged with the swing rods; the balancing device is used for keeping the upper vehicle carrying plate balanced in the swing process. According to the swing type avoidance-free three-dimensional garage, the action of the upper vehicle carrying plate is smooth, and parking is safe and reliable.

The invention provides a shaft gear quick positioning and clamping device which comprises a base and a mould. The center of the base is provided with a tip, a pressing module is arranged above the mould and comprises a pedestal, the pedestal at least comprises a U-type portion, a rotary shaft penetrates through the U-type portion, the portion, in an inner cavity of the U-type portion, of the rotary shaft is a rectangular spline structure and is sleeved with a cam in a connected mode, the two portions, on the outer side of the U-type portion, of the rotary shaft are a threaded section and a second rectangular spline structure respectively, the threaded section is connected with a stop nut in a matched mode, the second rectangular spline structure is connected with a handle in a matched mode, the cam surface of the cam abuts against a T-type sliding rod, the front end of the rod is provided with an arc-shaped pressing plate, and a reset spring is further disposed between the T-type sliding rod and the bottom of the U-type portion of the pedestal. The shaft gear quick positioning and clamping device has the advantages that quick self-centering of shaft gears is achieved through the tip, manual alignment efficiency is greatly improved, and different tips can be replaced so as to be suitable for the shaft gears with different center holes.

The invention discloses a pipeline interior rapid self-locking blockage device and belongs to the technical field of pipeline blockage. The pipeline interior rapid self-locking blockage device is reliable in blockage and can achieve flow guiding. According to the adopted technical scheme, a blockage unit is an inflatable blockage device and is provided with an axial through hole; a traction unit is of a structure with an electric control valve mounted on a hollow pipe, and an outer thread is formed on the hollow pipe; a tensioning unit comprises the structure that axial through holes are formed in a fixed seat and a movable seat correspondingly, the fixed seat and the movable seat are connected through a spring, one ends of first supporting rods are hinged to the fixed seat, antiskid blocks are hinged to the other ends of the first supporting rods, one ends of second supporting rods are hinged to the movable seat, and the other ends of the second supporting rods are hinged to the middles of the first supporting rods; and the hollow pipe penetrates through the tensioning unit and then is fixed to the blockage unit together, a first gear and a sleeve are mounted on the hollow pipe ina sleeving mode, and a second gear is fixed to an output shaft of a motor and engaged with the first gear. The pipeline interior rapid self-locking blockage device is used for pipeline blockage.

The invention provides a linear motor driven by rotary magnetic fields. The linear motor comprises a primary iron core, a primary winding, a secondary rotor iron core and a guiding device, wherein the primary iron core is encapsulated in a casing; the primary winding is wound on the primary iron core according to the mode of a rotary-magnetic-field motor; the guiding device is used for allowing the secondary rotor iron core and the primary iron core to mutually move only along the axial direction of the secondary rotor iron core; the outer surface of the secondary rotor iron core along the axial direction is provided with a secondary rotor iron-core thread; the inner wall of the primary iron core is provided with a primary iron-core pole-tip thread; and the secondary rotor iron-core thread and the primary iron-core pole-tip thread are mutually positive and reverse. The linear motor has the advantages of needing no permanent magnet materials, reducing the cost for producing and using the linear motor, reducing strong magnetic disturbance to environment and improving thrust-weight ratio. In addition, by adopting a mature integral structure of the rotary-magnetic-field motor, the linear motor has the characteristics of simple structure, low manufacturing cost, radial equilibrium and positioning accuracy, and has broad application prospects.

The invention belongs to the field of humanoid robots, and particularly relates to a three-degree-of-freedom humanoid wrist mechanical device. The device comprises a power unit, a transmission unit, an overturning platform and a palm connecting platform. The device is compact in structure and light in weight, can simulate the up / down cutting, inward / outward turning and inward / outward rotating movements of a human wrist, has a certain self-locking capability, can be used as a humanoid robot wrist, and can also be mounted on a prosthetic hand.

The invention discloses an electromagnetic lead screw driving type precise-punching presser which comprises a presser body, a working platform, a controller and a stand, wherein the presser body is fixed on the working platform; the stand is arranged above the working platform, and is movably connected with the stand through a connecting plate. The stand is provided with an electromagnetic lead screw system which comprises an electromagnetic nut and a punch shaft. The electromagnetic nut is fixed on the stand, and comprises two circular cores. Each circular core is divided into two parts by a coil. A circular permanent magnet is clamped between the two cores. The punch shaft penetrates through the stand and the electromagnetic nut, and has a gap with the electromagnetic nut. Threads which have the same pitch are processed at the inner hole side of the circular core and the part of the punch shaft. The controller is used for controlling the density, the frequency and the phase of the current in the coil. The invention has the advantages of adjustable speed and punch force, quick response, high guiding and positioning precision, simple structure, convenient control, less component consumption, low noise, convenient maintenance and long service life.

The invention discloses lift roller based hull block turning equipment during ship construction. The turning equipment comprises a rotary table (11). Two sides of the rotary table (11) are fixed on rotary rings (21) used for overturning respectively. The rotary table (11) comprises an electromagnet adsorption component and a plane attached to a hull block. Each rotary ring (21) rotates together with an outer side driving gear (33). Grooves are formed in the plane, attracted to the hull block, of the rotary table (11) at intervals. Lift roller components (12) are arranged in the grooves. Each lift roller component (12) comprises a track (123) perpendicular to the plane of the rotary table (11). Roller carriers (124) with rollers (121) are arranged in the tracks (123). Lift roller hydraulic oil cylinder components (122) are connected to the lower sides of the roller carriers (124). Rotary shafts of the rollers (121) are connected with roller driving motor components. By the turning equipment, construction cost of the hull block is greatly reduced, and construction efficiency is improved.

The invention belongs to the space optical technology field and especially relates to an adjustable reflecting-mirror Bipod flexible support structure, a support device and an assembling adjusting method. The adjustable reflecting-mirror Bipod flexible support structure comprises two flexible rods whose top portions are connected, and a bidirectional adjusting mechanism. The bidirectional adjusting mechanism comprises a fixing support and a bidirectional ball screw installed on the fixing support. Two ends of the bidirectional ball screw are provided with screw joints respectively. The bidirectional ball screw possesses two segments of screw threads whose screw pitches are the same and rotation directions are opposite. When the bidirectional ball screw is rotated, the two screw joints symmetrically move along the ball screw. Bottoms of the two flexible rods are hinged to the two screw joints respectively. The two flexible rods can rotate about a top portion connection point. The fixing support is provided with a servo motor used for driving the bidirectional ball screw to rotate and a potentiometer used for recording and feeding back a rotation direction and an angle of the bidirectional ball screw.

The invention relates to the field of geriatric rehabilitation training equipment, and particularly relates to rehabilitation training equipment applied to ageing resistance of legs and feet of old people. The rehabilitation training equipment comprises a bedstead; the bedstead is fixedly provided with sliding rods; a fixed seat stand is fixedly arranged at one ends of the sliding rods; a seat plate is fixedly arranged on the fixed seat stand; a backrest capable of regulating an angle is arranged on the seat plate; the other ends of the sliding rods are in sliding connection with a sliding seat; brackets are fixedly arranged on the sliding seat; a flat plate is fixedly arranged at the upper ends of the brackets; the flat plate is hinged with pedals; bandages are fixedly arranged on the pedals; a speed limiting mechanism is arranged on the sliding seat; the speed limiting mechanism can be connected with the sliding rods; a wooden support is arranged between the fixed seat stand and thesliding seat; the wooden support is respectively in hinged connection with the fixed seat stand and the sliding seat by two pulling rods; massage mechanisms are arranged at the middle parts of the pulling rods; and the massage mechanisms are connected with the middle part of the bedstead by pulling ropes. The rehabilitation training equipment applied to ageing resistance of legs and feet of old people implements training on legs of old people so as to improve strength of legs of old people and improve functionality, thereby taking an anti-ageing effect.

The invention provides a retractable step based on a bus. The retractable step comprises a base, a stand column, a driving mechanism and a signboard. A step board is located below a bus door, a firstlink and a second link are arranged between the step board and a bus body in parallel, and the two ends of each of the first link and the second link are respectively hinged to the step board and thebus body, so that the step board is constantly kept horizontal during movement; a driving mechanism is arranged on the bus body; the step board is connected with the driving mechanism, and is driven by the driving mechanism to extend from or retract to the bottom of the bus body; when the retractable step is in use, the driving mechanism drives the step board to extend, the step board is constantly kept horizontal during movement, and accordingly, passengers can step on the step board conveniently when getting on or off the bus.

The invention discloses a double-worm wheel precision transmission device which comprises a box body, a power input shaft and a power output shaft, and also comprises a worm and gear transmission pair, a worm and gear gap-adjusting pair and a gear transmission system. The worm and gear transmission pair comprises a worm wheel I and a worm I that are mutually meshed; the worm and gear gap-adjusting pair comprises a worm wheel II and a worm II that are mutually meshed; the meshed surface of the worm wheel I and the worm I and the meshed surface of the worm wheel II and the worm II have reverse directions; the worm wheel I and the worm wheel II have the same rotating direction and are arranged on the power output shaft in a parallel way; the worm I and the worm II are arranged in a parallel way; the power input shaft coordinates with the gear transmission shaft to input the power into the worm I and the worm II. The double-worm wheel precision transmission device of the invention can effectively improve the loading capacity and driving efficiency, has relatively high transmission precision, can effectively control the return difference, also called tooth clearance, can be applied in the fields of precision transmission and heavy-load power transmission, raises no special requirement for lead angle, transmitting ratio and the size of the worm wheel of the worm and gear pairs, has simple and contact structure and is quiet when operating.

The invention discloses a petroleum pipeline cleaning device which comprises a drive part formed by a motor and a speed reducer, a transmission part formed by a worm wheel-worm, cleaning heads, a packing cup, a shell and the like. Telescopic cylinder rods are arranged at two ends of a cleaner so as to adapt to different pipe diameters. The motor transmits the torque to a worm so as to drive a wormwheel, a chain wheel and a driving walking wheel to move in a pipe, and meanwhile, the torque is transmitted to a cleaning shaft through the speed reducer, so that the aim of cleaning the pipeline isachieved through rotating the cleaning heads. When in work, through the joint action of a triangular support, springs and compression cylinder rods, the tail part of the cleaner can effectively fit to the inner side of the pipeline. When the resistance is too big or the power level is low, air can be pumped into the pipeline, and the cleaner is driven through the trepanned packing cup. The threecleaning heads are arranged at the front end of the cleaner and are connected through connecting buckles, the compression cylinder rods and the cleaning shaft, and the pitching angles of the cleaningheads can be adjusted through the connecting buckles, so that the applicability and the cleaning efficiency of the cleaning device are improved.

The invention belongs to the field of underwater robots and specifically relates to a mass center adjusting device for an underwater robot. A biasing battery pack of the underwater robot is used as a mass block of the mass center adjusting device for the underwater robot; through engaged transmissions of a pitching worm gear, a pitching worm and a gear rack of a pitching driving device, the biasing battery pack is enabled to slide on a square tube shaft so that the adjusting mass center of the mass center adjusting device moves in an axis direction of the mass center adjusting device; and through engaged transmission of a heeling worm gear and a heeling worm of a heeling adjusting device, the square tube shaft and the biasing battery pack are driven to rotate; and as the mass center of the biasing battery pack is biased from the axis of the square tube shaft, the mass center of the whole mass center adjusting device rotates around the axis of the whole mass center adjusting device so as to realize the pitching and heeling adjusting function of the whole underwater robot system. The mass center adjusting device for the underwater robot satisfies requirements, such as compact structure, small energy consumption, reliable working and so on, of the underwater robot.

The invention discloses a comprehensive burn treatment bed which is novel in structure, convenient and safe to use and capable of conducting automatic operation, reducing treatment time, improving treatment effects and reducing working intensity and is driven by a machine. The bed comprises a bed body, a lifting mechanism, a rotating mechanism, an electric device and an immersion bath. A body turning bed and a body turning frame are arranged and matched in use, a patient lies flatly when the bed is turned upwards, transposition is conducted when the bed is turned downwards, irradiation treatment is conducted on the patient on the body turning frame, and pains of the patient caused by the fact that the patient is bound and hung for back irradiation are removed. An automatic location fixed separation moving device is arranged to replace manual transportation of the body turning frame, an infrared electric heater case all-dimensional radiation effect is achieved in use, the immersion bath is added clinically, and ventilation suspension is conducted on the patient on time to prevent pressure sores. A worm reducer and a bedside guardrail are provided to ensure clinical safety of the patient. The treatment bed is clinically applied to moderate and severe burn patients.

The invention relates to the technical field of thoracic and abdominal minimally-invasive surgical medical equipment, in particular to a handheld minimally-invasive surgical instrument with a self-locking function, and is intended to solve the problems that an existing handheld minimally-invasive surgical instrument is inconvenient to operate and low in flexibility, and a mechanism driving an endeffector to gain rotation and deflection degrees of freedom has no self-locking function. The handheld minimally-invasive surgical instrument comprises an end effector, an end wrist joint, an end effector operating device and a handle operating device; the end wrist joint includes a wrist rotary joint, a wrist connector, a joint rotary shaft and a rope guide block; the rope guide block is connected with the wrist connector; the handle operating device includes a fixing handle, an opening-closing control handle, a handle rotary shaft, a deflecting control device, a guide wheel post unit, a shell and a support plate; the opening-closing control handle is rotationally connected with the fixing handle through the handle rotary shaft, the guide wheel post unit is disposed between the deflectingcontrol device and a spring-ball self-rotating locking device, and the guide wheel post unit, the deflecting control device and the spring-ball self-rotating locking device are mounted on the upper surface of the support plate. The handheld minimally-invasive surgical instrument is applicable to thoracic and abdominal minimally-invasive surgeries.

The invention discloses a manual spring tension and compression testing machine which aims to solve the problems that spring elasticity coefficients are detected by special equipment mostly made of electronic components currently and the special equipment is not applicable to field operation and the like. The manual spring tension and compression testing machine comprises a frame, a measuring mechanism, a transmission mechanism and a tension and compression clamp mechanism. The measuring mechanism comprises a wide-range vernier caliper (12), a small-range vernier caliper (16) and a spring (5). The spring (5) is sleeved on an upper pressing plate guide rod (3), the upper end of the spring (5) is fixed with a middle crossbeam (6), the lower end of the spring (5) is fixed with an upper spring pressing plate (15) of the tension and compression clamp mechanism, an upper measuring jaw of the small-range vernier caliper (16) is fixed with the middle crossbeam (6), a lower measuring jaw of the small-range vernier caliper (16) is fixed with the lower surface of the upper spring pressing plate (15), an upper measuring jaw of the wide-range vernier caliper (12) is fixed with the upper surface of an upper crossbeam (10), and a lower measuring jaw of the wide-range vernier caliper (12) is fixed with the lower surface of the upper spring pressing plate (15).

The automatic side hung window with intelligent control function includes frame and intelligent controlling machine to drive the window leaf to rotate. The intelligent controlling machine can open and close the window leaf to any optional angle. The present invention has also aluminum alloy broken-bridge technology, multilayer sealing technology, etc. adopted and obvious heat insulating and energy saving effect. In addition, the window frame is provided also invisible screen, so that the window is novel and beautiful.