29results about How to "Improve assembly work efficiency" patented technology

The embodiment of the utility model provides a fixed adjustable supporting tool for assembling a turbine tester, and relates to the field of aero-engine tests. The volute aims to solve the problems that the interior of a volute is of a horizontal shaft cavity structure, and it is difficult to horizontally install a transmission shaft and other components into a shaft cavity in a hoisting mode. The positioning device comprises a base platform, a positioning combination mechanism, a mounting support and an adjusting telescopic support, and the positioning combination mechanism is used for being placed at the preset position of the base platform or used for being fixed to a supported volute; the mounting bracket is fixed on the base platform and is used for rotationally mounting the volute; one end of the adjusting telescopic support is hinged to the base platform, and the other end of the adjusting telescopic support is used for being hinged to the positioning combination mechanism. The installation support is rotatably provided with the volute, the telescopic support is adjusted to fix the volute structure and finely adjust the pitching angle, the center shaft cavity in the volute finally meets the position requirement for transmission shaft assembly, and the assembly difficulty is greatly reduced.

The invention relates to the technical field of civil engineering, in particular to a steel sheet pile supporting device. The steel sheet pile supporting device comprises a pile plate body, an enclosing purlin assembly and a steel pipe support, and the pile plate body is fixedly connected with the enclosing purlin assembly through a hanging piece; the enclosing purlin assembly comprises a front plate, a rear plate and I-shaped steel, the front plate and the rear plate are connected through at least two sets of first bolts, and the length of the first bolts is larger than the distance between the front plate and the rear plate. The I-shaped steel is inserted between the front plate and the rear plate, and the number of the I-shaped steel is 2-3; the steel pipe support is a steel pipe, the steel pipe support is connected with the front plate, at least two sets of first stiffening ribs are arranged at the end of the side, close to the front plate, of the steel pipe support, and the steel pipe support is in threaded connection with the supporting piece through the first bolt holes. According to the supporting device, the assembling procedure is greatly simplified, the connection between the steel pipe support and the enclosing purlin assembly is firmer and more reliable, the load effect under the full working conditions of supporting tension, pressing and the like can be effectively resisted, and the overall stability and the bearing capacity of the supporting device are further improved.

The present invention provides a battery capping device, comprising a turntable mechanism for rotating a battery to be capped to a predetermined position, a positioning mechanism for positioning the battery to be capped, and a robot for assembling a battery cap on a PCM board of the battery to be capped, wherein the positioning mechanism comprises a battery positioning assembly for positioning the PCM board of the battery to be capped, a clamping assembly for clamping and positioning the wiring harness of the battery to be capped, and a linear driving assembly for linearly driving the battery positioning assembly and the clamping assembly to the predetermined position when the battery to be capped rotates to the predetermined position. In the battery cap assembly process, when the turntable mechanism rotates the battery to be capped to the predetermined position, the linear driving assembly drives the battery positioning assembly and the clamping assembly to the predetermined position, positions the PCM board of the battery to be capped by the battery positioning assembly, and clamps and positions the wiring harness of the battery to be capped by the clamping assembly, so that the robot can accurately assemble the battery cap, thereby improving the assembly operation efficiency.

The utility model relates to the technical field of flat head bolts, in particular to a flat head *-shaped limiting screw which comprises a screw body and a connecting assembly, the screw body is arranged at the top of the screw body, the screw body comprises a nut, the nut is fixedly connected to the top of the screw body, a *-shaped flower groove I is formed in the middle of the top of the nut, and a groove II is formed in the middle of the top of the nut. A second *-shaped planter is formed in the bottom of the inner wall of the first *-shaped planter, a third *-shaped planter is formed in the middle of the top of the nut, and a fourth *-shaped planter is formed in the bottom of the inner wall of the second *-shaped planter. According to the flat-end *-shaped limiting screw, by installing the connecting assembly, the screw can be matched with different screwdrivers to be used, it is guaranteed that the screwdrivers are adjusted to be stable in stress, objects can be conveniently connected and fixed, a worker can conveniently fix the screw, and the assembling work efficiency can be improved; and meanwhile, the knife edge is arranged in the screw, so that the assembly of any object is not influenced.

The utility model discloses an antenna IPEX head assembling and disassembling clamp which comprises an assembling and disassembling rod, and an assembling end and a disassembling end which are respectively arranged at two ends of the assembling and disassembling rod, the assembling end comprises an assembling head connected to one end of the disassembling and assembling rod, a first trumpet-shaped guide groove, a first IPEX head fixing groove and a signal line clamping groove which are formed in the assembling head, and first inverted buckling bosses arranged at the tops of the two side walls of the first trumpet-shaped guide groove and the first IPEX head fixing groove; and the two limiting retaining walls are arranged at one end, far away from the first horn-shaped guide groove, of the first IPEX head fixing groove. Through the above design, the antenna IPEX head can be accurately picked up and installed and buckled or the position of the antenna IPEX head can be accurately adjusted. The clamp is also provided with a dismounting groove with an inverted buckle, and can be used for easily dismounting the antenna IPEX head according to the lever principle. The design is simple in structure, wide in application, and suitable for connection, disassembly and assembly of various wireless signal antenna IPEX heads.

The present invention relates to a spring assembly machine for assembling valve parts, including a clamping assembly, a rotating assembly and a driving assembly. The valve parts are installed on the clamping assembly. The rotating assembly includes a shell and a base. A rotating needle is arranged on the base. The rotating needle is used to connect with the screw of the valve parts. The driving assembly is connected with the shell and drives the shell to rotate around its own axis. The base is inserted into the shell, and the base can slide along the axis direction of the shell. A spring is arranged at one end of the base away from the rotating needle so that the rotating needle is elastically connected with the screw. The shell can drive the base to rotate so that the rotating needle drives the screw to rotate relative to the nut sleeved on the screw. By setting the rotating assembly, a spring is arranged at one end of the base of the rotating assembly away from the rotating needle, and the rotating needle is elastically connected with the screw through the spring. When installing the valve parts, it is not necessary to plug the screw and the rotating needle into place. During the rotation of the rotating needle, it can automatically plug and cooperate with the screw under the action of elastic force, which is conducive to improving the efficiency of the assembly operation.

The invention discloses an efficient and silent permanent magnet DC brushless shielded pump with an integrated controller, comprising a pump body and a permanent magnet shielded DC brushless motor, the permanent magnet shielded DC brushless motor comprising a stator assembly, a rotor assembly and a controller; the stator assembly comprises a casing, the inner wall of which is provided with a winding stator; the rotor assembly comprises a fixed shaft, the left and right sides of the fixed shaft are respectively connected with water-lubricated bearings, a rotor shaft is connected between the two water-lubricated bearings, an impeller is connected to the left end of the rotor shaft, a rotor core matched with the winding stator is connected to the rotor shaft, and a rotor shielding sleeve is connected to the surface of the rotor core. The invention realizes the self-lubricating effect by designing a self-lubricating waterway; the installation of the integrated controller ensures the high efficiency of the shielded pump assembly operation and improves the cost performance of the product; the stator assembly and the rotor assembly are respectively glued with thermal conductive glue to form an integrated structure, which has a good thermal conductivity effect, and at the same time plays an anti-corrosion and shielding role, ensuring the efficient operation of the shielded pump.

The utility model discloses a motor rotor magnet assembling device. The motor rotor magnet assembling device comprises a workbench; supporting plates are symmetrically arranged on the surface of the workbench, moving mechanisms are symmetrically arranged on the inner sides of the supporting plates, adjusting mechanisms are fixedly installed at the bottoms of the moving mechanisms, and clamping mechanisms are fixedly installed at the bottoms of the adjusting mechanisms. The adjusting mechanism comprises a second motor, a fixing plate and a displacement sensor. The adjusting mechanism is fixedly installed at the bottom of the moving mechanism, the detection mechanism, the moving mechanism and the adjusting mechanism are used in cooperation, a magnet of a motor rotor can be rapidly assembled, in the assembling process, personnel do not need to participate in the installing process, and the assembling efficiency is improved. And therefore, the working efficiency of assembling the magnet of the motor rotor by the device can be further improved, a large amount of manpower resources can be saved, and the working efficiency of assembling the magnet of the motor rotor can be further improved.

An electromechanical equipment assembling workbench comprises a bearing plate, a workbench plate, a movable rotating cylinder, a driving gear disc, a collecting cylinder, a tool box and a bearing seat, the bearing plate is connected with the upper ends of fixed supporting legs, the lower ends of the fixed supporting legs are connected with a fixed bottom plate, the bearing plate is connected with the outer portion of a bearing, the inner portion of the bearing is connected with the movable rotating cylinder, and a bearing groove is formed in the upper portion of the movable rotating cylinder. The bearing groove is matched with the working table plate, the working table plate is connected with the bearing groove, the interior of the working table plate is connected with an iron wire grid, the lower portion of the movable rotary drum is provided with a driven gear disc, the upper portion of the driven gear disc is attached to the bearing plate, the lower portion of the driven gear disc is provided with a threaded protruding ring, the threaded protruding ring is connected with the collecting drum through threads, and the driven gear disc is meshed with the driving gear disc. The upper portion of the driving gear disc is attached to the bearing plate, the lower portion of the driving gear disc is attached to the fixed supporting plate, the upper portion of the fixed supporting plate is connected with the bearing plate, and the lower portion of the fixed supporting plate is connected with the motor.

The utility model belongs to the technical field, and particularly relates to a workbench attached rotating device which comprises a supporting column, a bottom layer supporting face, a top layer supporting face, a rotating shaft, a rotating plane and a mounting plate. The multiple supporting columns are vertically placed, a bottom-layer supporting face and a top-layer supporting face are fixedly installed on the multiple supporting columns from bottom to top, and the multiple supporting columns, the bottom-layer supporting face and the top-layer supporting face jointly form a three-dimensional frame structure. Bearings are coaxially installed in the center of the bottom-layer supporting face and the center of the top-layer supporting face, the two bearings are jointly provided with a vertical rotating shaft, the top of the rotating shaft is connected with a rotating plane rotating together with the rotating shaft, and an installation plate used for installing a goods shelf or a goods basket is installed on the rotating plane. And a rotatable material supply mode is adopted, so that the assembling efficiency of workers is greatly improved.

The invention discloses a screw gasket assembly vibration plate and relates to the technical field of tools for screw gasket assembly vibration plates; the invention comprises a support box, the top surface of the support box is rotatably provided with an outer cylinder shell, the middle part of the outer cylinder shell is provided with an inner cylinder shell, the inner wall of the inner cylinder shell is spirally provided with a vibration transmission belt, the top end of the vibration transmission belt is spirally provided with a discharge plate, the rear end of the discharge plate is provided with a screw sorting belt, the lower part of the screw sorting belt is provided with a gasket sorting belt, the rear part of the gasket sorting belt is provided with a blanking tray, the connection between the blanking tray and the gasket sorting belt is provided with a screening mechanism, the tail end of the screw sorting belt is provided with a toggle mechanism, the rear part of the gasket sorting belt is provided with an assembly belt, the rear part of the assembly belt is provided with a blanking mechanism, through the provision of the screw sorting belt and the gasket sorting belt, the screws and gaskets can be screened out respectively, and the screws with the screw rod downward can be screened out, and through the provision of the vibration transmission belt, the screws and gaskets can be driven to spirally rise on the vibration transmission belt through vibration.

The utility model discloses an oil cylinder assembly pre-adjusting device which comprises a moving device, a fixed clamp set, a moving clamp set, an oil supply and return system and a control device, wherein the fixed clamp set and the moving clamp set are oppositely arranged on the moving device at intervals. The fixed clamp set is fixedly arranged, the movable clamp set is arranged in a sliding mode, and the fixed clamp set and the movable clamp set are used for oppositely clamping the two ends of an oil cylinder to be pre-adjusted. The oil supply and return system is used for being connected with an oil inlet and outlet way of the oil cylinder so as to enable hydraulic oil to circulate between the oil supply and return system and the oil cylinder under the action of the control device, and then the oil cylinder can fully stretch and contract for multiple times to exhaust, and the oil supply and return system is further used for being matched with the control device to accurately adjust the assembly length of the oil cylinder. And the oil cylinder is kept in a rigid state with stable length after being connected with a hydraulic valve of a hydraulic system of a whole machine product. According to the oil cylinder assembly pre-adjusting device, the overall assembly operation efficiency can be improved, the labor intensity of operators can be reduced, and the safety problem caused by oil cylinder crawling or shaking when an oil cylinder stretches out and draws back for the first time can be solved.

The invention provides a curtain wall and an assembling method thereof, and belongs to the technical field of buildings. The problem of poor stability in the prior art is solved. The curtain wall comprises a framework, inner wallboards and outer wallboards, the framework is in a square frame shape, a plurality of connecting beams which are transversely and longitudinally arranged are fixedly connected into the framework, the interior of the framework is divided into a plurality of adjacent frame bodies through the connecting beams, and each frame body is provided with the corresponding inner wallboard and the corresponding outer wallboard. The inner wall plate and the outer wall plate are connected to the inner side and the outer side of the corresponding frame body respectively, a first protruding connecting part is arranged on the inner side of the inner wall plate, a second protruding connecting part is arranged on the outer side of the framework, the first connecting part and the second connecting part are connected in a buckled mode, and a third protruding connecting part is arranged on the inner edge of each frame body. And the connecting part III is in contact with the surface of the outer wall plate and is connected with the outer wall plate through a fastener. The curtain wall is high in stability.

The utility model discloses a kind of automobile electric wheel brake disc centring tool, belong to automobile electric wheel brake disc technical field, and its technical solution main point includes support plate, the top of the support plate is welded with lifting mechanism, the front side welding of the lifting mechanism has replacement mechanism, replacement mechanism adopts the double connection structure of clamping plus threaded locking, when clamping pipe is butted with connector through insertion hole, reset spring pushes ball and embeds card ball groove, realizes preliminary positioning and pre-fixing, without manually aligning, subsequent by fixed screw rod through the through hole of clamping pipe and is screwed into the thread hole of connector, it can complete locking, without disassembling complex bolt or with special tool, operator can complete different specifications centring adaptation component in short time, such as the replacement of the positioning sleeve for different brake disc hole diameter, substantially reduce the downtime caused by component replacement, especially suitable for multi-vehicle type mixed line production scene, significantly improve overall assembly operation efficiency.

The invention discloses an indicating fuse assembling device, and relates to the technical field of fuse assembling, the indicating fuse assembling device comprises a machine table, the upper end of the machine table is provided with a rotating groove, the inner bottom wall of the rotating groove is provided with a connecting groove, the upper end of the machine table is provided with a mounting rack located above the rotating groove, and the upper end of the machine table is provided with a fuse placing groove located on the right side of the rotating groove; and a fuse is arranged in the fuse containing groove, a fixing frame is arranged on the front side of the upper end of the machine table, and discharging openings are formed in the left side and the rear side of the inner bottom wall of the rotating groove in a penetrating mode. And the rotary table is arranged on the inner side of the rotary groove, and the upper end of the rotary table is provided with four fuse holder placing grooves which are distributed at equal intervals in the circumferential direction of the rotary table. According to the fuse and fuse seat assembling machine, the processes of loading, assembling, testing and unloading of fuses and fuse seats can be completed, the assembling efficiency of the fuses and the fuse seats is greatly improved, the assembling quality of the fuses and the fuse seats can be tested, and the assembling qualification rate of the fuses and the fuse seats is guaranteed.

The invention belongs to the technical field of suspended ceilings, and discloses a high-stability assembled suspended ceiling for hotels, which comprises a suspended ceiling plate, grooves are formed in the front side and the rear side of the bottom end of the suspended ceiling plate, slots are formed in the middles of the left side and the right side of the top end of the suspended ceiling plate, and clamping grooves are formed in the inner walls of the front side and the rear side of the slots on the two sides. Keel frames are arranged at the front side end and the rear side end of the suspended ceiling plate and are of an inverted-T-shaped frame body structure, one side of the bottom end of each keel frame is in lap joint with a groove in one side of the bottom end of the suspended ceiling plate, a hanging assembly is arranged in the middle of the top end of each keel frame, and limiting assemblies are arranged on the two side edges of the bottom end of each hanging assembly and located on the side edge of the top of the suspended ceiling plate. By means of the inserting grooves and the clamping grooves formed in the ceiling plates, the inserting plates and the clamping strips are matched, and when a plurality of ceiling plates are horizontally erected on the keel frame, the ceiling plate in the middle is clamped, connected and pressed towards the ceiling plates on the two sides.

The utility model provides a rotor magnetic pole accurate assembling tool, and relates to the rotor magnetic pole assembling tool technology field, and the rotor magnetic pole accurate assembling tool comprises a pedestal, a left positioning plate block and a motor, the left part and the right part of the lower end surface of the pedestal are fixedly provided with backing plates, and the left part of the upper end surface of the pedestal is fixedly provided with a first sleeve plate and a second connecting plate; two groups of left screw rods are rotatably connected between the first sleeve plate and the second connecting plate, a left positioning plate block is movably connected to the left screw rods, a left rotating disc is fixed to the middle of the upper end face of the base, a right positioning plate block is fixed to the left rotating disc, and a rotor is clamped between the left positioning plate block and the right positioning plate block. According to the utility model, the left positioning plate and the motor can be conveniently moved, so that rotors with different lengths can be flexibly stabilized, the rotors can be kept stable when a motor rotating shaft clamps a magnetic pole to enter the rotor, the magnetic pole can be conveniently and rapidly aligned and embedded, the assembly is rapid, stable and accurate, and the overall working efficiency of rotor magnetic pole assembly can be improved.

The utility model provides a thermoregulation knob assembly structure for an instant heating type faucet, one side of the instant heating type faucet is provided with an extension seat, a sensing element and a baffle block, a water flow regulation mechanism is arranged in the extension seat, the sensing element comprises a fixed part and a rotating part, one end of the fixed part is fixed on the extension seat, and the other end of the fixed part is fixed on the baffle block. The end, facing the sensing element, of the check block is provided with a plurality of second inserting parts, the second inserting parts are inserted into the second inserting grooves in a matched mode, the water flow adjusting mechanism is provided with a valve rod used for rotating adjustment, one end face of the abrasion-resistant mechanism faces and is tightly attached to the check block, and the check block is tightly attached to the end face of the fixing part. A temperature adjusting knob is arranged between the check block and the sensing element, a plurality of first inserting grooves are formed in the outer wall of the rotating part, an annular flange is arranged on the inner wall of the temperature adjusting knob in the radial direction, the annular flange abuts against the end face of the rotating part, the annular flange extends in the axial direction to form a plurality of first inserting parts, and the first inserting parts are inserted into the first inserting grooves in a matched mode.

The utility model provides a mobile phone display screen convenient to assemble, which relates to the technical field of display screen assembly and comprises a working table, an equipment box mounted at the bottom of the working table, a control table mounted on one side of the outer end of the working table and a fixing component arranged at the top of the working table. The fixing assembly comprises an L-shaped support, a lifting air cylinder, a telescopic rod, a fixing block, a suction cup, a vacuum pump, an exhaust pipe, an exhaust pipe and an assembling assembly arranged on the top of the workbench. According to the mobile phone display screen convenient to assemble, the mobile phone display screen can be stably sucked, fixed and moved in the assembling process through the fixing assembly, the problem that when a worker holds the display screen with the hand, the display screen cannot be stably held and falls off, and consequently the display screen is damaged is solved, the mobile phone display screen is effectively prevented from being damaged in the assembling process, and the working efficiency is improved. And the mobile phone display screen and the mobile phone body can be quickly aligned and assembled through the assembling component, so that the aim of saving time and labor is fulfilled, and the assembling working efficiency of the mobile phone display screen and the mobile phone body is improved.

The invention discloses a multi-mode inflation pipeline system for an oxygen cabin and a cabin filling machine, and belongs to the technical field of cabin filling machines. The pipeline system comprises an air filtering device, an air compressor, a distribution valve, a gas path control valve, an oxygen generation unit, an electronic flow meter, an oxygen sensor I, a control device, a plurality of connecting pipes, a tee joint and a connector. The air filtering device is communicated with the air compressor, the air compressor is divided into two branches through a tee joint, one branch forms a first air supply channel through a connecting pipe connected with an air channel control valve, and the other branch is communicated with the oxygen generation unit or a second air supply channel through a distribution valve. The invention further provides a cabin filling machine comprising the multi-mode inflation pipeline system. According to the multi-mode inflation pipeline, only one air compressor is utilized, and an oxygen supply channel and two air supply channels are formed through structure and pipeline optimization, so that the size of equipment is reduced, and the manufacturing cost and the energy consumption are reduced.

The invention discloses a quick preassembling jig for a ferrule joint. The quick preassembling jig comprises a mounting base and a movable mounting rod, a clamping sleeve nut fixing groove is formed in one end of the mounting base, a T-shaped clamping sleeve fixing groove is formed in the middle of the mounting base, and a conical clamping sleeve fixing groove is formed in the other end of the mounting base; the clamping sleeve nut fixing groove is used for fixing a clamping sleeve nut, the T-shaped clamping sleeve fixing groove is used for fixing a T-shaped clamping sleeve, and the conical clamping sleeve fixing groove is used for fixing a conical clamping sleeve. When the clamping sleeve connector is assembled, the movable mounting rod sequentially penetrates through the T-shaped clamping sleeve and the conical clamping sleeve from the clamping sleeve nut and then is inserted into the clamping sleeve connector. The invention can effectively avoid the problems of misloading and neglected loading of the movable part of the ferrule joint, inconvenience in inspection, unsuitability for batch operation and maintenance and the like.

The utility model relates to the technical field of automobile assembly line auxiliary tools, in particular to an automobile assembly line carrying device which comprises a bottom plate, a plurality of hydraulic cylinders are symmetrically installed on the top of the bottom plate, the telescopic ends of the hydraulic cylinders are connected with a containing frame, and a driving material pushing mechanism is arranged in the containing frame. And the driving material pushing mechanism is used for pushing the automobile parts from the depth of the placing frame to the height where the automobile parts are easy to take. After the assembly parts in the placing frame arrive at a carrying destination, a driving motor is started to drive a rotating shaft and a driving gear to rotate in order to conveniently take the assembly parts in the placing frame, the driving gear is meshed with a rack, the rotation of the driving gear can drive the rack and a movable strip to ascend and descend together, and the movable strip drives a push plate to ascend and descend; and the push plate stably ascends and descends under the action of a limiting block and a limiting groove, the automobile parts in the containing frame are driven to ascend to a proper height, workers can conveniently take the assembly parts from the interior of the containing frame, and the assembly work efficiency is improved.

The utility model discloses a valve assembling press machine which comprises a base, a supporting frame is fixed to the side edge of the base, a gear is transversely arranged on the supporting frame in a penetrating mode, a rotating seat is fixed to the outer side of one end of the gear, a pressing handle is arranged on the rotating seat in a penetrating mode, and a bolt is installed on the outer side of the other end of the gear. A toothed bar is vertically arranged on the supporting frame in a penetrating mode and connected with the gear in an engaged mode, a connecting rod is fixed to the lower end of the toothed bar, a rotating frame is connected to the connecting rod through a bearing, an extrusion head is installed on the lower side of the rotating frame, a limiting sleeve is fixed to the connecting rod, a clamping block is arranged on the limiting sleeve, and a rotating frame is connected to the lower end of the clamping block. And the connecting rod is arranged at the lower end of the toothed bar, the rotating frame capable of rotating is arranged on the connecting rod, and the multiple extrusion heads are arranged on the lower side of the rotating frame, so that the extrusion heads can be rapidly replaced, the press machine can conveniently meet the requirement for matched connection between different valve parts, and the valve assembling work efficiency is effectively improved.

The utility model relates to the technical field of automobile interior trim panels, in particular to a C column interior trim panel assembly which comprises an interior trim panel body and a loudspeaker cover plate, an avoiding hole is formed in the interior trim panel body, and a first installation portion, a second installation portion and a third installation portion are annularly arranged on the rear end face of the interior trim panel body. The first mounting part, the second mounting part and the third mounting part are respectively provided with a connecting column, the loudspeaker cover plate is provided with a containing groove and a first mounting hole, the second mounting part and the third mounting part are respectively provided with a positioning column, the loudspeaker cover plate is provided with a positioning opening, and mounting guide pieces are arranged between the first mounting part and the second mounting part and between the first mounting part and the third mounting part. One end of the installation guiding member is provided with a first guiding inclined plane, the top end of the first guiding inclined plane is provided with a second guiding inclined plane, and the loudspeaker cover plate is provided with a guiding hole matched with the installation guiding member, thereby preventing repeated adjustment caused by human factors, and effectively improving work efficiency.

The utility model discloses a combined multilayer circuit board, which relates to the technical field of multilayer circuit boards, and comprises a fixed frame and a multilayer circuit board main body, a limiting mechanism for fixing the multilayer circuit board main body is arranged in the fixed frame, the surface of a circular plate is fixedly connected with first teeth which are uniformly distributed, and the inner side wall of an open slot is fixedly connected with a loop bar. A sliding rod is slidably connected to the inner side wall of the sleeve rod, the top end of the sliding rod extends out of the fixing part, an arc plate is fixedly connected to the surface of the sliding rod, second teeth are fixedly connected to the side wall of the arc plate, the first teeth are meshed with the second teeth, and a reset mechanism used for lifting the sliding rod is arranged in the fixing part. Limiting and fixing of the multilayer circuit board body can be completed only by rotating the inner hexagonal head, the multilayer circuit board body can be taken out for targeted maintenance or replacement, and therefore the problem that the whole circuit board needs to be replaced due to damage of a single circuit board is solved, convenience of maintenance of the multilayer circuit board is improved, and the service life of the multilayer circuit board is prolonged. And the use cost of the circuit board is reduced.

The utility model relates to a railway vehicle electrical cabinet ground circulation device which comprises two strip-shaped movable bases which are mutually independent, each movable base is composed of a first section and a second section which can stretch out and draw back relatively, and movable wheels are installed below the first section and the second section respectively. The supporting surfaces of the first section and the second section are respectively provided with a fixing structure which is fixed with the electrical cabinet, and a locking mechanism which is used for being locked on any telescopic length is arranged between the first section and the second section. The electrical cabinet supporting device integrates a plurality of functions such as supporting, ground circulation and assembling of an electrical cabinet assembly process, and is high in universality, convenient to use and stable and reliable in supporting.

The invention relates to the technical field of mechanical instruments, in particular to a high-stability pointer type mechanical instrument gauge outfit and an installation method thereof.The high-stability pointer type mechanical instrument gauge outfit is mainly composed of a gauge outfit upper support, a gauge outfit lower support, a balance cross, a movable coil, a magnetic conductive inner iron core, a magnetic conductive outer iron core and a magnet; through the cooperative use of the movable coil, the magnetic conductive inner iron core, the magnetic conductive outer iron core and the magnet, the stability of the meter head can be improved, the service life of the meter head can be prolonged, the meter hand is more sensitive, the precision is higher, and the precision is adjustable; in addition, glue is not needed for positioning in installation between the gauge head upper support and the gauge head lower support and installation between the magnet and the magnetic conductive inner iron core and the magnetic conductive outer iron core, and materials such as glue are abandoned; on the basis of environmental protection, the assembly working efficiency is improved; by arranging the stable connecting piece, the overall stability of the mechanical instrument head is improved; and the stable connecting pieces comprise the first stable connecting piece and the second stable connecting piece, so that the stable connecting work flexibility of the mechanical instrument head is improved.

The utility model discloses a tool suitable for assembling an axle box of a bogie of an urban railway vehicle, and belongs to the technical field of bogie assembling. The device is provided with a bracket body in contact with the ground and a support; branch pipes which extend upwards and are different in height are arranged at the upper part of the bracket body; the top end of the branch pipe can be fixedly connected with the support at any height through a positioning structure, and the top end of the support is provided with a limiting platform which extends in the radial direction of the branch pipe and is used for being in contact with the axle box body. The axle box body fixing device has the advantages that the structure is simple, installation is convenient and fast, and the labor intensity of operators can be reduced.