64results about How to "Prevent lateral shift" patented technology

The invention discloses a safety passenger elevator which is characterized in that hydraulic asymmetric safety tongs are arranged on the two sides of an elevator car in the position corresponding to elevator guide tracks. The hydraulic asymmetric safety tongs of the safety passenger elevator disclosed by the invention utilize a hydraulic principle, and when emergency brake is performed on the elevator car, the clamping force is increased smoothly, so that the comfort of passengers in the car during the emergency brake of the elevator can be increased. Furthermore, when a vertical sliding wedge block of the safety passenger elevator disclosed by the invention is lifted upwards, a horizontal sliding block translates outwards, and a hydraulic rod on the side is compressed; and as the total oil amount in a hydraulic box is constant, a hydraulic rod on the other side extends outwards, the position of a horizontal sliding wedge block is adjusted during the process, then the two sides of the elevator guide tracks are subject to the same stress, the transverse deviation of the elevator car can be avoided, and the damages to an elevator guide shoe can also be avoided.

The invention discloses a TSV (through silicon via) chip bonding structure, belonging to the technical field of micro electronics. The bonding structure comprises a first chip and a second chip, wherein the first chip comprises a first micro bump and first surrounding structures around the first micro bump; the height of the first surrounding structures is more than that of the first micro bump; the second chip comprises a second micro bump; the second micro bump is embedded into the first surrounding structures and the first surrounding structures restrict lateral displacement of the second micro bump; the second chip also comprises second surrounding structures; and the first surrounding structures are embedded into the second surrounding structures and the second surrounding structures restrict lateral displacement of the first surrounding structures. The TSV chip bonding structure can be used in such fields as manufacturing of semiconductor devices and the like.

The invention discloses a reverse dismantling device for a chimney and a dismantling method. The reverse dismantling device for the chimney comprises a first horizontal steel plate belt and a second horizontal steel plate belt, wherein the first horizontal steel plate belt and the second horizontal steel plate belt are arranged around the chimney; the diameter of each steel plate belt can be adjusted according to the different diameters of different sections of the chimney, and a plurality of vertical connecting steel channels and steel brackets are arranged between the two steel plate belts and used for transmitting gravity of the chimney and vertical acting force converted by horizontal force to a hydraulic jack and a buttress; transverse tie rods are arranged at the ends of the steel brackets and used for preventing instability and increasing the bearing capacity; and reliable connection is conducted between the steel brackets and the hydraulic jack as well as the steel brackets andthe buttress, the effects of pressure and pulling force can be borne, and the buttress is fixed to a raft formed by pouring of reinforced concrete. According to the reverse dismantling device for thechimney and the dismantling method, after the chimney portion between the two lower sets of horizontal steel plate belts are cut and moved, the jack is utilized to make a part of the chimney to fall,then cutting is continued, and the steps are repeated until the whole chimney is dismantled.

The invention belongs to the field of auxiliary equipment of milling machines, and particularly discloses an auxiliary supporting device for a milling machine. The auxiliary supporting device for themilling machine comprises a supporting platform. A first rack is slidably arranged on the supporting platform. An adjustment plate is slidably connected to the upper portion of the first rack. A firstpiston cavity and a second piston cavity are fixedly formed in the two ends of the first rack correspondingly. The surface, opposite to the first rack, of the adjustment plate is coated with magnetism conduction materials. The first rack is filled with an electromagnet and engaged with an outer gear ring. The outer gear ring is rotatably connected to the supporting platform. An inner gear ring isarranged in the outer gear ring in a sleeved mode. An annular detection cavity is formed between the outer gear ring and the inner gear ring. A first airbag, a second airbag, a first airbag squeezingmechanism and a second airbag squeezing mechanism are arranged in the detection cavity. The first airbag and the first piston cavity communicate with a first hose. The second air bag and the second piston communicate with a second hose. By adoption of the auxiliary supporting device for the milling machine, the problem that long workpieces are inconvenient to clamp is solved.

The invention relates to the field of circuit board assembly lines, in particular to a PCB conveying line capable of being automatically adjusted in width. The PCB conveying line capable of being automatically adjusted in width comprises a left supporting assembly, a right supporting assembly, an adjusting assembly and a drive assembly; the left supporting assembly comprises a first strip-shaped baffle and two first supporting bases; the right supporting assembly comprises a second strip-shaped baffle and two second supporting bases; the adjusting assembly comprises a third strip-shaped baffle, two third supporting bases, two adjusting threaded rods and an adjusting motor; two mutually-parallel guide polished shafts are arranged between the first strip-shaped baffle and the second strip-shaped baffle; conveying belts used for conveying PCBs are arranged on the inner sides of the first strip-shaped baffle and the second strip-shaped baffle; and the ends, away from the adjusting motor, of the two adjusting threaded rods are in transmission connection. According to the PCB conveying line capable of being automatically adjusted in width, the width of the conveying line is set accordingto the specifications of the PCBs, the adaptation range is wide, and the PCBs of various specifications can be conveyed only by one conveying line.

The invention discloses a continuous drilling device for producing cylindrical hardware fittings. The continuous drilling device comprises a base plate, a feeding mechanism and a discharging mechanism, and further comprises a continuous drilling component, wherein the bottom surface of the base plate is symmetrically provided with support feet; the feeding mechanism and the discharging mechanism are separately arranged on both sides of the continuous drilling component; the continuous drilling component includes a horizontal moving mechanism, a clamping mechanism, an I-shaped support plate anda drilling mechanism; the I-shaped support plate is fixedly connected to the upper portion of the base plate through a first column, and is parallel to the base plate; the horizontal moving mechanismis arranged between the I-shaped support plate and the base plate; the clamping mechanism is connected to the top surface of the horizontal moving mechanism; and the drilling mechanism is connected to the upper portion of the I-shaped support plate through a lifting mechanism. The continuous drilling device for producing the cylindrical hardware fittings has the advantages of simple structure andhigh practicability; and the continuous transportation and drilling of the cylindrical hardware fittings are achieved, the clamping accuracy of the cylindrical hardware fittings is improved at the same time, and then the accuracy and quality of drilling machining are improved so as to meet the needs of assembly line production.

The invention discloses a thimble lifting device which is used for a plasma processing device and comprises a central guide rod, at least two support arms for supporting the central guide rod and a driving part for driving the support arms to do vertical motion, wherein the upper end of the central guide rod is connected with a thimble, and the central guide rod is movably connected with the support arms so as to lead the support arms to be capable of changing the relative positions in the extension directions of the support arms. When the support arms produce the displacement in the horizontal direction during the lifting process due to various reasons, the support arms do not limit the degree of freedom of the central guide rod in the horizontal direction, so that the position change ofthe support arms in the horizontal direction can not affect the vertical motion of the central guide rod, the central guide rod is always kept vertical during the lifting process and the reliability of the device is improved.

The invention aims at providing a wafer-level bonding method for a three-dimensional integrated packaging technology, belongs to a low-temperature wafer bonding method and can solve the problems that lateral deviations among bumps occur due to softening of solder at high temperatures or metal surfaces are prone to oxidization during metal bonding and the like. The method comprises the steps of finishing a process for preparing silicon through holes and front sides and a process for thinning and preparing back sides of first wafers; coating the back sides of the first wafers with first dry etching type benzocyclohutene, and curing the first dry etching type benzocyclohutene; processing the first dry etching type benzocyclohutene to expose portions on the back sides of the first wafers, which are electrically connected with second wafers in which silicon through holes are already formed; performing aligned bonding on the second wafers and the first wafers, wherein the silicon through holes of the second wafers are aligned to the portions on the back sides of the first wafers; finishing a process for preparing the silicon through holes and back sides of the second wafers.

The invention discloses a self-adaptive opening and closing rain grate, which comprises a main body, a shell and a top cover with a grid. The main body and the shell form a hollow cavity, and the neutral position of the grid is provided with a drainage switch, the drain switch includes blades with cylindrical mounting rods at both ends, the mounting rods are plugged into the main body, a rocker arm is provided at the end of the mounting rod, and a telescopic column is hinged on the rocker arm, The lower end of the telescopic column is fixed on the bottom of the shell, and the upper telescopic rod is plugged and fixed on the solid buoyancy device; the main body is provided with a water inlet, and the bottom of the shell is provided with a drain hole. The displacement of the hole is less than the displacement of the water inlet. When there is no water or the amount of water is small, the drainage switch is closed, which can isolate odor and rodents; when the amount of water is large, the blades deflect and push away the dust covered on the grid, which solves the problem of rain grates in the prior art. The grille is easily covered by dust and causes poor drainage.

The invention relates to a lifting-and-descending type medical treatment bed, which comprises support legs, a bed frame arranged on the support legs and a mattress located on the bed frame, wherein a lifting and descending assembly is arranged between the bed frame and the support legs; the lifting and descending assembly comprises guide rails parallelly arranged on two support legs at both sides of the bed frame and screws capable of sliding in the guide rails; two screws are arranged in each guide rail; each screw is hinged with one end of a connecting rod, and the other end of the connecting rod is hinged under the bed frame; each screw is socketed on a rotation shaft; one end, extending out of the guide rail, of each rotation shaft is fixedly connected with a chain wheel; two chain wheels at the head of the bed frame are respectively connected with two chain wheels at the tail of the bed frame through chains; and a crank handle is arranged on each of one of two chain wheels at the head of the bed frame and one of two chain wheels at the tail of the bed frame. The lifting-and-descending type medical treatment bed provided by the invention has simple structure and ingenious design; and the height of the bed frame of the medical treatment bed can be adjusted through operating the crank handles by hands, thus the patients can conveniently go to bed or get out of the bed and medical care is facilitated; and in addition, the inconsistency in the height of the head and tail of the bed frame can be realized, therefore, the medical treatment bed is particularly convenient.

The invention discloses a pressure tester for detecting compression performance of a valve. The pressure tester comprises an operating table, a top pressure type test table, a clamping jaw type test table, a medium pressure supply device and an oil pressure driving device, wherein the medium pressure supply device and the oil pressure driving device are matched with the top pressure type test table and the clamping jaw type test table respectively; both the medium pressure supply device and the oil pressure driving device are controlled by the operating table; the clamping jaw test table comprises a clamping jaw test table, a driving clamping jaw, two driven clamping jaws, a push-pull oil cylinder and three clamping oil cylinders; the driving clamping jaw is arranged on the clamping jaw test table; the two driven clamping jaws synchronously act with the driving clamping jaw; the push-pull oil cylinder is positioned in the clamping jaw test table and is used for pushing the driving clamping jaw to horizontally move; the clamping oil cylinders are used for driving the corresponding driving and driven clamping jaws to perform clamping action on the valve; and the push-pull oil cylinder and the three clamping oil cylinders are connected with the oil pressure driving device respectively. The pressure tester comprises the top pressure test table and the clamping jaw test table. Two valves can be simultaneously tested, the testing efficiency can be improved, the comprehensive utilization rate of equipment is high, and the cost is saved.

The invention relates to a gas spring which uses a compensating medium acting on a compensating piston in order to compensate the dependence on temperature of its characteristic. According to a first aspect of the invention, a compensating medium ( 16 M) is selected whereof the critical temperature (TK) is between the lower limit temperature (Tlower) and a temperature exceeding the upper limit temperature (Tupper) of the range of operating temperatures of the gas spring ( 50 ) by up to 100 DEG C, and the gas spring ( 50 ) is designed such that, at an operating temperature (TB) of the gas spring ( 50 ) not exceeding the critical temperature (TK) of the compensating medium ( 16 M), the point indicating the state of the compensating medium ( 16 M) lies on or above the vapor pressure curve. According to a second aspect, in order to simplify the structure of the gas spring ( 50 ), a single compensating piston ( 10 ) which takes the shape of a cup is used and separates the working chamber ( 1 a), the compensating chamber ( 16 ) and the restoring chamber ( 15 ) of the gas spring ( 50 ) from one another.

The invention relates to a cyclic conveying device. The cyclic conveying device comprises two racks which are arranged in parallel, a carrying plate mechanism, a return mechanism and an auxiliary block, wherein a slide rail is arranged on each of the two racks; the carrying plate mechanism is slidably born on the slide rails, and a guide wheel is arranged on the carrying plate mechanism; the return mechanism is used for conveying the carrying plate mechanism to a space between the two slide rails, the return mechanism comprises a transferring table and a slide seat, the transferring table is arranged between the two racks, and the slide seat is slidably arranged on the transferring table and used for slidably bearing the carrying plate mechanism; and the auxiliary block is arranged between the two racks, and a guide groove matched with the guide wheel is formed in the auxiliary block. According to the cyclic conveying device, a good guide effect is acted on the movement of the carrying plate mechanism relative to the transferring table through the mutual matching of the guide wheel and the guide groove, the lateral deviation of the carrying plate mechanism relative to the transferring table of the return mechanism is avoided, and the carrying plate mechanism can be smoothly transited to the slide rail at the other side from the slide seat of the return mechanism, so that the conveying efficiency of the carrying plate mechanism is greatly increased.

The invention discloses a light electric automobile power lithium battery pack. The light electric automobile power lithium battery pack comprises a lower fixed base, lithium batteries, an upper fixedbase, a first conducting piece, a second conducting piece and a lithium battery box; four lower mounting grooves matched with the lithium batteries are formed in the top of the lower fixed base; thefour lower mounting grooves are distributed in a square shape; the bottom ends of the lithium batteries are inserted into the lower mounting grooves; the tops of the two adjacent side walls of the lower fixed base are fixedly connected with lower tenons; the tops of another two side walls of the lower fixed base are provided with lower mortises matched with the lower tenons; a first conducting hole which is through vertically is formed in the center of each lower mounting groove of the lower fixed base; and the first conducting pieces are electrically connected with electrodes at the bottom ends of the lithium batteries respectively. The four lithium batteries form a small lithium battery pack; a plurality of small lithium battery packs can be easily connected to form a large lithium battery pack by adopting mortise and tenon structures, so that different numbers of lithium batteries can be selected according to electric automobiles of different sizes; and the light electric automobilepower lithium battery pack is wide in application range and convenient to use.

The invention discloses a release film winding and recycling device with a deviation rectifying structure. The release film winding and recycling device comprises a frame, wherein vertical plates are fixedly connected to the left side and the right side of the frame; winding rods are arranged on the inner sides of the vertical plates, and the left ends and the right ends of the winding rods penetrate through the vertical plates and are movably connected with the vertical plates through bearings; and speed reducers are fixedly connected to the left sides of the vertical plates, the bottoms of the speed reducers are fixedly connected with transmission motors, and the output ends of the speed reducers are fixedly connected with the left ends of the winding rods. According to the release film winding and recycling device with the deviation rectifying structure, a rotating wheel drives a screw rod to rotate, threads on the surface are used for driving an adjusting plate to ascend, the distance between the adjusting plate and the winding rods can be increased, and stretching rollers can tension a release film wound around the surfaces of the winding rods, so that the release film is prevented from deviating due to loosening, and the problem that the percent of pass of the release film is seriously affected due to the fact that the inclined protruding part of the release film can be damaged due to transportation extrusion after the release film is wound at will due to the fact that an existing winding device does not have the effect of preventing the release film from deviating is solved.

The invention discloses a hanging basket structure used in construction of a reinforced concrete arch bridge. The hanging basket structure comprises a main truss load bearing system, each of the left and right sides of the middle of the main truss load bearing system is provided with a pair of C-shaped hooks, walking devices are connected with the tops of the C-shaped hooks, the bottoms of the walking devices are located on a walking track at the top of an arch box, connecting plates are arranged on the C-shaped hooks, each of the left and right sides of the connecting plates are connected with pulling seats on the side faces of the front basket and the rear basket of the main truss load bearing system correspondingly through a plurality of cable-stayed lifting strips, an anti-roller device is arranged on the rear basket, and a lifting load-bearing screw is arranged on the main truss load bearing system. When the hanging basket structure is used, great falling in the concrete pouring process can be avoided, the angle adjustment structure of the hanging basket is relatively simple, use is convenient, and a retreat mechanism cannot affect the structure of the bridge.

The invention discloses a compaction mechanism of a fast-assembling dolly of an engine, and belongs to the field of equipment for vehicle detection. The compaction mechanism comprises a soleplate, four compaction assemblies are arranged on the soleplate, each compaction assembly comprises a rotating wheel, a driving belt and a weight, and each rotating wheel is connected with a hydraulic rotatingoil cylinder; and the soleplate is provided with a weight stop mechanism which comprises a sliding body and a ratchet hinged to the axial center of the weight, the sliding body comprises a spur rack and a ratchet strip fixedly connected to the spur rack, the ratchet strip is engaged with the ratchet, the spur rack is in sliding connection to the soleplate, the frame is in rotational connection with first and second rotating shafts, the rotating wheel sleeves the first rotating shaft, a first unidirectional bearing is arranged between the rotating wheel and the first rotating shaft, the gear sleeves the second rotating shaft, a second unidirectional bearing is arranged between the gear wheel and the second rotating shaft, the spur rack is engaged with the gear, and a belt is wound around the first and second rotating shafts. Via the compaction mechanism, the magnitude of a clamp force can be adjusted freely.

The invention discloses an anti-deviation tissue holder. The anti-deviation tissue holder is made of absorbable high polymer material. The holder comprises a first clamping arm and a second clamping arm which are connected through an elastic hinge, first anti-deviation components which are composed of chain teeth staggered in sequence are arranged at the two sides of the center line of the inner wall surface of the first clamping arm along the center line of the first clamping arm, second anti-deviation components which are composed of chain teeth staggered in sequence are arranged at the twosides of the center line of the inner wall of the second clamping arm along the center line of the second clamping arm, and the chain teeth of the first anti-deviation components can be matched with the chain teeth of the second anti-deviation components to form a zipper shape. According to the anti-deviation components, sealing lines can be formed in the center lines of the clamping arms, exudation of the blood vessel can be prevented and the horizontal friction force can be increased to the greatest extent, horizontal deviation is avoided, the friction force of the side surface can be increased through anti-skid stripes, and vertical deviation is prevented.

The invention discloses a strengthening construction process for a comprehensive pipe rack pre-embedded steel edge water-stop belt and a water-stop steel plate, and belongs to the field of architectural engineering. The strengthening construction process is characterized in that a plurality of positioning ribs are horizontally arranged on the bottom of the water-stop steel plate, a plurality of pairs of strengthening steel bars are mounted at the left side and the right side of the water-stop steel plate, and the water-stop steel plate is squeezed, so that the water-stop steel plate is prevented from longitudinally shifting and transversely shifting, and therefore, displacement deviation of the water-stop steel plate is greatly reduced, an accuracy rate and a qualification rate of the water-stop steel plate pre-embedding material are remarkably increased, construction efficiency is improved, construction quality is guaranteed, and specifications are met. According to the strengtheningconstruction process disclosed by the invention, a double-layer positioning box is adopted to integrally oppositely pull and strengthen the steel edge water-stop belt, so that a strengthening area between the positioning box and the water-stop belt is increased, a condition that the steel edge water-stop belt deviates when the concrete is vibrated as a result of strengthening the steel edge water-stop belt in the prior art is avoided, the accuracy rate and the qualification rate of the steel edge water-stop belt pre-embedding material are remarkably increased, construction efficiency is improved, construction quality is guaranteed, and the specifications are met.

The invention relates to an electromagnetic release which comprises a housing and a base which form an accommodating space. A coil wound on a coil framework, a yoke, an armature, magnetic steel and a tension spring are arranged in the accommodating space. An ejector rod penetrating through the top end of the housing can move upwards under the action of the armature. The yoke is U-shaped. A first arm of the yoke extends into the through hole of the coil framework. A pressure reed is fixedly mounted on the side surface of a second arm of the yoke, and two shoulder parts are formed at the upper end of the pressure reed and extend into a hinging groove of the armature. Lugs are respectively formed on the two sides, close to the front end of the armature, of a top plate of the coil framework. The lugs are arranged at the position close to the front end of the armature, so that the armature is prevented from generating transverse deviation, the armature is limited to rotate on a middle plane, and the stable rotation of the armature is effectively ensured.