18results about How to "Guaranteed fixed connection" patented technology

The utility model provides a copper foil splitting machine compression roller structure with axial and radial adjusting structures, and belongs to the technical field of copper foil production equipment. Comprising side plates on a rack of the copper foil splitting machine, two ends of a compression roller rotating shaft are rotatably supported on the side plates, a cylinder is arranged on the outer side of one side plate, the rear end of the cylinder is hinged to the side plates, and the front end of the cylinder is connected with one end of the compression roller rotating shaft through a connecting rod structure and drives the compression roller rotating shaft to rotate; the compression roller is freely pressed on the wind-up roller, and the two ends of the compression roller are connected with compression roller swing arms; one end of each pressing roller swing arm is connected with the pressing roller rotating shaft through an axial and radial adjusting connecting structure, the axial and radial adjusting connecting structures can rotate relative to the pressing roller rotating shaft and are adjusted in an axial moving mode, and the axial and radial adjusting connecting structures and the pressing roller rotating shaft are fixed in an enclasping mode after the positions of the axial and radial adjusting connecting structures are adjusted; the compression roller swing arm is rotationally arranged on the axial and radial adjusting connecting structure in a sleeving mode, and a stirring connecting structure is arranged between the axial and radial adjusting connecting structure and the compression roller swing arm. According to the structure, the functions of axial movement and radial rotation, pressing and lifting of the pressing roller are achieved.

The utility model relates to the technical field of fastening devices, in particular to a self-locking fastening device for a railway overhead line system, which comprises a bolt, a main nut and a lock catch nut, the bolt is provided with a first thread and a second thread, the thread diameter and the thread pitch of the first thread are different from those of the second thread, and the main nut and the lock catch nut are arranged in a staggered mode. The screwing direction of the first thread is opposite to the screwing direction of the second thread, the main nut is matched with the first thread, the lock catch nut is matched with the second thread, and a straddle screw is installed in a seam between the lock catch nut and the bolt. The product is provided with the lock catch nut with the rotating direction opposite to that of the main nut, and the lock catch nut is a first structure for preventing the main nut from loosening; a perforation screw is arranged on the joint of the lock catch nut and the bolt, and is a second structure for preventing the main nut from loosening; the product is simple in structure, low in cost, reliable in locking, convenient to mount and dismount and wide in application range, all-weather operation can be realized, and the operation benefit of equipment is greatly improved.

The utility model discloses a buckle-free air filter which comprises a filter element, lower covers respectively adhered to two ends of the filter element, and an annular fixing plate I matched with the edge of the upper end face of the filter element in shape, the annular fixing plate I is obliquely arranged, and an annular fixing plate II is arranged along the circumference direction of the annular fixing plate I; a plurality of positioning blocks are arranged on the inner side of the second annular fixing plate, the second annular fixing plate is detachably connected with an end cover, a bending part is arranged on the inner side of the end cover, an inserting groove is formed between the bending part and the end cover and matched with the second annular fixing plate, and a plurality of positioning grooves in interference fit with the positioning blocks are formed in the inserting groove. According to the end cover fixing structure, the end cover can be quickly fixed and installed without a buckle structure.

The invention discloses a rigidity enhancing structure of a high-safety automobile door accessory, and relates to the technical field of automobile accessories. A connecting block is arranged on the front side of the handle; the alloy housing is arranged on the front side of the handle, a cavity used for containing the connecting block is formed in the rear side of the alloy housing, the alloy housing is used for improving the use strength of the handle, and a heating element is installed on the inner wall of the cavity and used for heating the alloy housing; and the sealing assembly is arranged between the alloy housing and the handle, and the sealing assembly is used for improving the sealing performance between the handle and the automobile handle groove. The handle can be effectively protected and the use strength of the handle can be improved through the alloy housing, and the handle can be prevented from being frozen in the handle groove through cooperative use of a heating element, a sealing assembly and a self-driven control assembly in the alloy housing in severe snowy weather; and meanwhile, external water can be prevented from entering the handle groove, so that the protection effect is good.

The utility model discloses a climbing frame protection device which comprises a scaffold board, a top board, a protection assembly and a protection assembly. By arranging the protection assembly, a protection plate can protect constructors and prevent debris such as gravels from falling to the ground from the position above the scaffold board, a penetrating opening in the surface of the protection plate is aligned with and inserted into a fixing block, then a fixing pin is pulled out, and a fixing rod is rotated to rotate the fixing block to be in a vertical state; and finally, a fixing pin is inserted into the fixing rod from the other set of limiting blocks, the fixing pin is located in the fixing rod all the time under the action of gravity, fixing of the protection plate is completed, convenient and stable fixing of the protection plate is achieved, the overall safety is improved, a fixing frame and other structures can be fixed through a hoop, and the practicability is high. The protection plates are fixedly connected with the supporting columns, the scaffold board and the top plate, then the threaded holes of the connecting pieces are aligned with the threaded holes of the protection plates, the protection plates are connected and fixed with the assistance of the bolts, and the overall stability is improved.

The utility model discloses a feeding mechanism for steel bar surface coating spraying equipment, which comprises a plurality of fixed supporting pieces, a plurality of fixed supporting pieces, a plurality of movable supporting pieces and a plurality of movable supporting pieces, the driving mechanism is used for driving the fixed supporting piece to circularly move on the supporting rack in a surrounding manner; the reinforcing steel bar adsorption parts are used for adsorbing and fixing reinforcing steel bar materials, the fixing supporting parts are upwards provided with reinforcing steel bar supporting openings correspondingly, and the reinforcing steel bar adsorption parts are fixedly installed at the openings of the fixing supporting parts correspondingly. According to the automatic feeding device, steel bar materials can be effectively and automatically fed according to needs, so that the feeding operation difficulty is reduced, the controllability of the feeding time of the steel bar materials can be effectively ensured, and the spraying efficiency of steel bar surface coatings is effectively improved in an auxiliary mode; and the uniform conveying speed of the steel bar materials can be effectively ensured, so that the spraying uniformity of a coating is improved in an auxiliary manner.

The invention discloses a wedge screw internal fixation device, comprising a lower wedge screw, an upper wedge oblique circular tube and a personalized bone plate. The lower wedge screw comprises an oblique cylindrical small screw segment and an oblique cylindrical large screw segment connected in sequence, the top surface of the oblique cylindrical small screw segment is provided with a cross-shaped groove, the outer wall is provided with an external thread, the oblique cylindrical large screw segment has an inclined surface, and its outer wall is provided with a self-tapping screw thread; a channel is axially provided in the upper wedge oblique circular tube, the oblique cylindrical small screw segment passes through the channel of the elliptical column structure and is sleeved in the upper wedge oblique circular tube from bottom to top, the outer diameter of the oblique cylindrical large screw segment is equal to the outer diameter of the upper wedge oblique circular tube, and the inclined surface of the upper wedge oblique circular tube is equal to the inclined angle of the inclined surface in the oblique cylindrical large screw segment; a screw thread hole is provided on the personalized bone plate, and the screw thread hole has an internal thread matching the oblique cylindrical small screw segment. The structure is designed based on the characteristics of human bones, is easy and efficient to install, has a short operation time during use, can be permanently fixed for osteoporosis patients, and is safe and reliable.

This utility model belongs to the field of new energy battery pack testing technology, and specifically relates to a battery pack vibration fixture, including a fixture body with a fixing assembly mounted on it; multiple first fixing parts are arranged around the fixture body, and the fixture body is connected to the vibration table through the first fixing parts; the fixing assembly is provided with second and third fixing parts, the fixing assembly is connected to the fixture body through the second fixing parts, and the fixing assembly is connected to the battery pack body through the third fixing part; by setting the installation positions of the fixing assembly and the fixture body, the fixed connection of each battery pack body under vibration conditions is ensured, thereby realizing the versatility of the vibration fixture.

The utility model relates to a height adjusting foot pad which comprises a foundation pillar and a height adjusting assembly. The height adjusting foot pad is ingenious in design and simple in structure, the fixed clamping arm and the movable clamping arm form a set of fixing assembly for clamping and fixing the table leg, and it can be guaranteed that the height adjusting foot pad is fixedly connected with the table leg; when the movable clamping arms open the clamping space, the clamping space becomes large, when the movable clamping arms close the clamping space, the clamping space becomes small, the size of the clamping space is adjusted by moving the movable clamping arms, table legs of various sizes can be clamped and fixed, and practicability is high. The height adjusting foot pad is easy to install and operate, the movable clamping arms only need to be moved outwards to open the clamping space, then the table legs are inserted into the clamping space, the movable clamping arms are moved according to the actual sizes of the table legs till the table legs are clamped and fixed and the clamping space is closed, and the purpose that the height adjusting foot pad is rapidly fixed to the table legs is achieved.

The utility model relates to the technical field of power distribution cabinets, in particular to a high-low voltage power distribution cabinet convenient to install, which comprises a cabinet body, a cabinet door is connected to the outer wall of one side of the cabinet body through hinges, a vertical frame is arranged in the cabinet body, and an installation frame is connected to the outer wall of one side of the vertical frame through bolts. The mounting frames are distributed on one side of the vertical frame at equal intervals, a fixing table is fixedly connected to the inner wall of the bottom of the cabinet body, a groove is formed in the top of the fixing table, a threaded lead screw is rotationally connected to the inner wall of one side of the groove, and a threaded sleeve is meshed with the circumferential outer wall of the threaded lead screw; the outer wall of the top of the threaded sleeve is fixedly connected with a first fixing frame. According to the utility model, the vertical frame and the mounting frame are integrally moved out from the interior of the cabinet body, so that a worker can conveniently mount the electrical components outside, and does not need to carry out the mounting operation in a narrow space in the cabinet body, and the worker can conveniently mount the electrical components.

The utility model discloses a hoop type support of a bridge frame on a beam bottom. The device comprises an I-shaped steel beam, a hoop assembly connected to the lower portion of the I-shaped steel beam, a supporting frame assembly connected to the lower portion of the hoop assembly, a lifting rope assembly connected to the top of the I-shaped steel beam and connected with the supporting frame assembly, and a butt joint assembly connected between the lifting rope assembly and the supporting frame assembly. Through the arrangement of the hoop assembly, installation of the support at the beam bottom is guaranteed, and a foundation is provided for fixing and stress of the support; through the arrangement of the lifting rope assembly, the bearing force of the support is further facilitated, and the bearing force is further transmitted to the steel beam; and through the arrangement of the butt-joint assembly, butt-joint splicing of the supporting horizontal rods is guaranteed, and fixed connection of the bottom of the lifting rope assembly is guaranteed.

The application discloses a kind of medium ring width adjustable radial water coupling blasting charge method, it is related to the technical field of seismic exploration, comprising the following steps: S1, the bottom of cylindrical film is inwardly folded to form the first film bag with inner layer film and outer layer film;S2, the explosive required by blasting construction is placed in the inner layer film, a part of the required water medium is added in the interlayer formed between the outer side of the inner layer film and the inner side of the outer layer film;S3, take a shell plate, the both ends of shell plate are bent and wrapped in the outer side of outer layer film, the adjustment of the size of the overlapping area of the both ends of shell plate is realized to adjust the wrapped inner diameter size formed by shell plate, the inner side wall of shell plate is tightly attached to the outer side of outer layer film, and the wrapped shape of shell plate is fixed by a plurality of fasteners;S4, the remaining part of the required water medium is continuously added to the interlayer formed between the outer side of the inner layer film and the inner side of the outer layer film, and sealed.The realization medium ring width adjustable, reduce the film breakage condition occurs.

The utility model provides an upper cover and a battery pack. The upper cover comprises a cover plate, a handle and a fastener, the handle extends in the first direction and comprises a lifting part and connecting parts, and the connecting parts are arranged on the two opposite sides of the lifting part in the first direction; the connecting part is provided with a first connecting hole; a flexible pull rope is arranged in the lifting part in a penetrating manner, and the end part of the flexible pull rope extends out of the lifting part to form a second connecting hole; the cover plate is provided with a third connecting hole, and the fastener penetrates through the first connecting hole, the second connecting hole and the third connecting hole so that the handle can be fixedly connected with the cover plate. When the upper cover is in a lifting state, the first connecting hole loses the restraining capacity on the fastener, the flexible pull rope can be immediately changed into a tensioning state from a loose state, and the second connecting hole replaces the first connecting hole to generate restraining force on the fastener, so that the phenomenon that the handle is separated from the cover plate to cause instant falling of the battery pack can be avoided, and the service life of the battery pack is prolonged. Meanwhile, response time can be provided for personnel, and personnel injury is avoided.

The invention provides a flexible temperature control type explosion-proof heater, which comprises a flexible heating element, a heat conduction layer, an external protection layer, a distributed temperature sensing module and a modularized explosion-proof shell, and is characterized in that the flexible heating element adopts a composite structure of a conductive polymer layer and an alloy conductive wire, and is combined with a silicon rubber matrix and a ceramic fiber reinforced material; the heat conduction layer is made of an aluminum oxide ceramic composite material, uniform heat dissipation is achieved, the outer protection layer is made of a polytetrafluoroethylene material, corrosion resistance and high temperature tolerance are achieved, and the distributed temperature sensing module achieves accurate temperature control over a heating area through a multi-point thermocouple sensor. The modularized explosion-proof shell is made of a titanium alloy and polymer composite material and is provided with an explosion-proof cavity, a heat dissipation pipe and heat dissipation fins, and effective heat dissipation and explosion-proof functions are achieved through optimized structural design.

The invention discloses a positioning tool for assembling a hard tube endoscope, and belongs to the technical field of optical lens processing devices.The positioning tool comprises a bottom plate, conveying guide rails are integrally formed and connected to the two sides of the top end of the bottom plate, sliding blocks fixed to pushing air cylinders are movably connected to the conveying guide rails, and the pushing air cylinders are symmetrically arranged with the bottom plate as the center; the eyepiece clamping and docking mechanism comprises a first rack arranged on the sliding block, a first motor is installed on the first rack, an output shaft of the first motor extends to first rotating teeth on the inner wall of the first cover body, and the first cover body is fixedly connected with a shell of the first motor through a first rotating rod. The technical problems that during manual assembly, the working efficiency is low, and during machine assembly, a single-shape clamping mechanism cannot be used for effective limiting and fixing and cannot be used for adaptive clamping according to the shape of an assembly, so that the follow-up assembly work is affected can be solved.

The utility model provides a ballastless track inter-line waterproof concrete construction tool which comprises a construction frame, a hopper, a middle discharging port and two side chutes, the hopper, the middle discharging port and the two side chutes are installed on the construction frame, each side chute comprises an adjustable chute and a fixed chute, and the two fixed chutes are symmetrically fixed to the two sides of the construction frame. The lower portions of the two adjustable chutes are hinged to the construction frame and are in butt joint with the upper portions of the two fixed chutes respectively, and the upper portions of the two adjustable chutes are detachably suspended on the hopper or the construction frame. When the adjustable chute is suspended on the hopper or the construction frame, the adjustable chute is located below the discharging port of the hopper and located above the middle discharging port, and material distribution on the outer side of the line is conducted. When the adjustable chute is not suspended on the hopper or the construction frame, the upper portion of the adjustable chute falls down and is placed on the middle discharging port, and in-line material distribution is carried out. According to the construction tool, line-to-line and line-edge construction switching is easy, convenient and rapid, tool connection is stable, and the construction efficiency is high.

The invention belongs to the technical field of automobile wire harnesses, and particularly discloses an automobile wire harness connector pull-apart prevention device which comprises two connecting wire harnesses, the ends of the two connecting wire harnesses are connected, and the ends of the two connecting wire harnesses are sleeved with a first connecting cylinder and a second connecting cylinder respectively. Matching cylinders are installed behind the first connecting cylinder and the second connecting cylinder, two first extrusion mechanisms are symmetrically installed on the inner walls of the matching cylinders, and two second extrusion mechanisms are symmetrically installed in the first connecting cylinder and the second connecting cylinder. And two positioning mechanisms are symmetrically mounted on the outer surface of the first connecting cylinder. The first extrusion mechanism, the positioning mechanism and the second extrusion mechanism can be operated and controlled at the same time through the pushing rod, it can be guaranteed that the first connecting cylinder and the second connecting cylinder are fixedly connected, and therefore pull-apart prevention of the connector is achieved, the risk that the connector is pulled apart is reduced, and the stability and safety of an automobile circuit system are guaranteed.

The utility model provides a power transmission tower which comprises a tower body and a composite cross arm arranged on the tower body, the composite cross arm comprises a cable-stayed insulator and a post insulator, the first end of the post insulator is connected with the first end of the cable-stayed insulator, and the second end of the post insulator and the second end of the cable-stayed insulator are both connected with the tower body. The cable-stayed insulator is arranged on the tower body and located above the supporting column insulator, the second end of the cable-stayed insulator is sleeved with an end hardware fitting, a connecting piece is arranged on the tower body, the end hardware fitting is connected with the tower body through the connecting piece, and the connecting piece comprises at least one first fixing plate fixedly connected with the tower body and at least one second fixing plate fixedly connected with the supporting column insulator. And the second fixing plate is fixedly connected with the end fitting, and a certain included angle is formed between the second fixing plate and the at least one first fixing plate. According to the design, the connecting structure of the cable-stayed insulator and the tower body can be simplified, and the manufacturing and mounting cost can be reduced under the condition that the safety performance is guaranteed.