117results about How to "Guaranteed limit" patented technology

The utility model discloses an interphase paper insertion machine, which relates to the technical field of automatic motor assembly equipment and comprises a workbench, a transferring mechanism for transferring iron cores, a paper insertion mechanism for inserting interphase paper into the iron cores, a carrying mechanism for carrying the iron cores and a storage mechanism for storing the iron cores. The paper inserting mechanism is provided with a limiting assembly used for limiting an iron core, the limiting assembly comprises a support, a longitudinal movement driving device, a vertical movement driving device and a movable pressing disc, the longitudinal movement driving device is installed on the support, and the vertical movement driving device is installed at the output end of the longitudinal movement driving device. The pressure plate is rotatably mounted at the output end of the vertical movement driving device; limiting in the iron core paper inserting process is achieved through the limiting assembly, iron core position deviation is prevented, and the paper inserting precision is improved; and the pressure plate is rotatably mounted at the output end of the vertical movement driving device, so that the position interference is avoided while the iron core is limited.

The utility model discloses an alternating current and direct current integrated shore power pile, which comprises a charging pile, the charging pile is arranged on an external identification, a fixing mechanism is arranged on the charging pile, the fixing mechanism comprises a bottom sleeve, a connecting sleeve, a fixing sleeve, a positioning sleeve, a push disc, a clamping mechanism, a top pipe, a rotating sleeve and a synchronizing mechanism, the bottom sleeve is arranged on the side wall of the charging pile, and the connecting sleeve is arranged on the side wall of the bottom sleeve. A positioning sleeve is installed on the fixing sleeve, a positioning groove is formed in the top sleeve, the positioning sleeve is clamped in the positioning groove, a push disc is installed on the fixing sleeve, a threaded groove is formed in the bottom sleeve, and through cooperation of the bottom sleeve, the connecting sleeve, the fixing sleeve, the positioning sleeve, the push disc, the clamping mechanism, the jacking pipe, the rotating sleeve and the synchronizing mechanism, accurate fixation of a cable can be achieved through the fixing mechanism; by means of the design, the fixing efficiency is improved, and the adaptability and the using effect of the alternating-current and direct-current integrated shore power pile are guaranteed.

The present invention discloses a curtain wall clamping quick positioning assembly device and assembly method, and relates to the technical field of curtain wall clamping. The curtain wall clamping quick positioning assembly device and assembly method include a curtain wall clamping mechanism, and the curtain wall clamping mechanism includes a fixing device, and the outer wall of the fixing device is fixedly connected with four connecting rods, and the ends of the four connecting rods are fixedly connected with fixing plates, and the outer wall of the fixing plate is fixedly connected with limit blocks, and the number of the fixing plates and limit blocks is four. The curtain wall clamping quick positioning assembly device and assembly method, through a spring arranged between the bolt and the fixing device, under the elastic lifting of the spring, the bolt and the fixing device threads are further fitted, and the friction between the threads is increased after fitting, thereby ensuring the fixation between the fixing device and the bolt, reducing the activity of the bolt, and the magnetic repulsion between the first magnetic block and the second magnetic block.

The utility model relates to domestic appliance technical field discloses domestic appliance, include: first shell body is equipped with first installation mouth and second installation mouth, first installation mouth is along axial direction and is arranged at one end of first shell body, and second installation mouth is arranged on the lateral wall of first shell body. Head assembly includes drive motor, and head assembly is detachably arranged in first shell body through first installation mouth. First connecting structure is arranged on head assembly. Second connecting structure is arranged in first shell body, and second connecting structure is rotatably clamped with first connecting structure. One end of locking structure is connected on head assembly, and the other end has the locking position of extension in second installation mouth, and the unlocking position of second installation mouth is taken off. The utility model discloses domestic appliance, and the first shell body and head assembly between convenient dismounting, locking structure also is convenient for internal locking, also is convenient for unlocking, prevents the first shell body and head assembly from being damaged when dismounting.

The utility model relates to the technical field of wafer storage devices, in particular to a wafer antifouling storage device which comprises a table body and a wafer frame arranged on the table body, one end of the table body is attached to the ground, the table body extends from the end attached to the ground to the direction away from the ground, an included angle of 30 degrees is formed between the extending direction of the table body and the ground, and the wafer frame is arranged on the table body. According to the utility model, through the inclined arrangement of the table body and the cooperation of the table body and the wafer rack, one side of the wafer filled with the ink can be arranged back to the wafer rack, and the side of the wafer filled with the ink is not contacted with the wafer rack under the action of gravity, thereby preventing pollution caused by the ink on the wafer.

The present invention relates to the field of vehicle-mounted units, and discloses an on-vehicle unit OBU device, comprising an OBU device and a tag card that can be inserted into the OBU device, wherein a clamping component corresponding to the position of the tag card and a control component for driving the clamping component to move are arranged inside the OBU device; when the tag card is inserted into the OBU device, the clamping component can be used to limit the position, and the control component and the clamping component can be used to achieve reciprocating movement of the tag card relative to the OBU device. The present invention can drive the tag card to move relative to the OBU device to form a quick plug-in and pull-out through the cooperation between the control component and the clamping component, thereby facilitating the quick start of the Bluetooth of the OBU device and the quick verification after successful activation, thereby facilitating the quick use of the OBU device; the overall operation can be completed with one hand, and the OBU device can be limited when the tag card is inserted and pulled out, and the effective limit of the tag card can be ensured during use to prevent the tag card from falling off.

The utility model discloses a brake disc repairing and processing machine tool which comprises an operation table and is characterized in that one side of the operation table is fixedly connected with a supporting shaft, the outer end of the supporting shaft is fixedly connected with a supporting plate, and the two ends of the upper side and the lower side of the supporting plate are hinged to one ends of symmetrical connecting rods respectively; the other ends of the two connecting rods located on the same side in the vertical direction are hinged to vertical rods of L-shaped rods, and the end of a transverse rod of each L-shaped rod is fixedly connected with one side of a straight groove rod. Symmetrical square blocks are arranged in each straight groove rod, and one side of each square block is fixedly connected with one end of a limiting rod. The utility model relates to the technical field of brake disc repairing and fixing, in particular to a brake disc repairing and processing machine tool. The utility model provides a machine tool for repairing and processing a brake disc, which can be used for processing the brake disc when the brake disc is repaired.

The utility model relates to motor shell technical field especially relates to a split type extruded aluminium heat dissipation shell structure of inner rotation motor, including the heat dissipation shell is combined by a plurality of small shell, the small shell one end all is provided with the clamping slot, and the small shell other end all is provided with the clamping strip, the utility model discloses a small shell on the clamping strip is installed to the inside of adjacent clamping slot in proper order, so that small shell can be in proper order circular distribution splicing into heat dissipation shell, so that heat dissipation shell whole is split type structure, and it is convenient to dismantle and install, so when heat dissipation shell appears damage, it is convenient to replace alone to the small shell of a place or a few places, and when processing heat dissipation shell, can divide heat dissipation shell into a plurality of small shell and carry out split type processing, then carry out combination again, so that when processing can adopt small tonnage extruded aluminium equipment and process, more convenient, can reduce the scrap rate and material production consumption.

The utility model relates to the technical field of steel bar truss floor support plates, and discloses an assembly type disassembly-free steel bar truss floor support plate which comprises a galvanized steel plate and two base rods arranged above the galvanized steel plate, a balance rod is arranged above the two base rods, a connecting rod is fixedly installed between the balance rod and the two base rods, and the connecting rod is connected with the galvanized steel plate. The base rod, the connecting rod, the balance rod and the U-shaped rod which are integrated are placed on a galvanized steel plate, in the placing process, limiting blocks and discs are arranged in corresponding circular grooves and limiting holes in a penetrating mode, after the limiting blocks and the discs are placed in the corresponding circular grooves and limiting holes, the U-shaped rod is just attached to the galvanized steel plate, and under the cooperation of the rotating rod, the limiting blocks, the discs, the circular grooves, trapezoidal blocks, mounting grooves and springs, the U-shaped rod is fixed to the galvanized steel plate. When the limiting blocks are separated from the trapezoidal blocks, the trapezoidal blocks bear the elastic force of the springs, the limiting blocks can be limited, the steel bar truss floor support plate can be conveniently assembled, formwork erecting and steel bar tying are not needed, assembling and fixing are convenient, operation is easy, and using is convenient and fast.

The utility model discloses a round tooth zipper stop assembly, which relates to the field of zippers, and comprises an upper wing plate, a guide column is fixedly connected between the upper wing plate and a lower wing plate, a cavity is formed between the upper wing plate and the lower wing plate, the top of the upper wing plate is fixedly connected with a mounting cover, and the inside of the mounting cover is rotatably connected with a pull tab; a movable groove is reserved in the pull piece, and an abutting column is movably connected into the movable groove. And a limiting assembly. When the zipper puller is pulled, the abutting columns synchronously move to drive the edge blocks to leave the gaps among the zipper teeth, so that the zipper puller is convenient to pull, the whole zipper puller does not move in a blocked mode, the service life of the whole zipper puller and the zipper teeth is longer, meanwhile, the abutting columns are driven to reset when the zipper puller and the elastic pieces are loosened subsequently, and the zipper puller and the elastic pieces are loosened subsequently. Therefore, the limiting of the zipper head is ensured, the zipper head does not move when the zipper pulls are not shifted, and the movement of the zipper head is effectively prevented.

The utility model relates to the technical field of graded broken stone feeding, in particular to a feeding device for graded broken stone production, which comprises a feeding device body, a hopper is arranged on the feeding device body, a support is arranged at the lower end of the hopper, a fixed plate is fixed on the support, a fixed seat is fixed on the fixed plate, a movable seat is arranged on one side of the fixed seat, and the movable seat is arranged on the other side of the fixed seat. The fixed base and the movable base are horizontally arranged, rotating rollers are installed at the upper ends of the fixed base and the movable base, a conveying belt is arranged at the outer ends of the rotating rollers, and a telescopic component for adjusting the distance between the fixed base and the movable base is arranged between the fixed plate and the movable base. According to the scheme, the telescopic component drives the conveying belt to adjust the extending length of the conveying belt on the feeding device, the gravity center of the feeding device in the storage state is more stable, and the conveying belt is partially located on the inner side of the support and plays a role in protection; and the arranged lifting component is linked with the telescopic component, so that the limiting of the conveying belt in a storage state is ensured, and the automatic falling of the conveying belt after the fixed seat and the movable seat are close to each other is avoided.

The invention relates to the technical field of electronic component connection, in particular to a connector with an ingenious structure. The connector comprises a shell and a pin, a mounting groove and a port are arranged in the shell, the pin consists of a mounting part and a connecting part, the mounting part is inserted into the mounting groove and is locked with the shell, and the connecting part is bent, so that the connector can be conveniently connected with external equipment. Limiting grooves and convex bodies are arranged on the side walls of the mounting grooves, so that the pins are stably assembled; the hanging table is matched with the second convex body to realize limiting in the vertical direction; the top cover is connected with the top of the shell to facilitate adsorption and transfer. According to the invention, the effects of improving the assembly efficiency and reliability of the connector and simplifying the production process are achieved.

The utility model discloses a kind of composite pipe winding machine, including winding machine bottom plate, the winding machine bottom plate bottom is equipped with coiled power component, the winding machine bottom plate is rotated by the coiled power component drive;The upper portion of the winding machine bottom plate is equipped with multiple sets of limiting rod adjusting mechanism and multiple sets of limiting plate adjusting mechanism, the width of composite pipe coiled is adapted by adjusting the limiting rod adjusting mechanism, the inner diameter of composite pipe coiled is adapted by adjusting the limiting plate adjusting mechanism.The composite pipe winding machine of the utility model, by the structural design of composite pipe winding machine, using T type screw rod carries out stepless adjustment of winding width and inner diameter, can better match different types of composite pipe and the requirement of different length different coiled width, effectively improve coiled efficiency.

The application relates to the technical field of feeding and discharging devices, in particular to a device for automatically feeding and discharging workpieces, which comprises a box body, further comprises a limiting mechanism, the limiting mechanism is provided with at least two groups and is respectively used for limiting and positioning processed workpieces and unprocessed workpieces, and the limiting mechanism is slidingly connected to the upper end of the box body; the limiting mechanism comprises a bearing table, a chuck and a clamping rod, the bearing table is slidingly connected with the box body, the chuck is rotationally connected with the bearing table, the bearing table is provided with a first guide hole, the chuck is provided with a second guide hole, the first guide hole and the second guide hole are distributed in a cross mode, the clamping rod is arranged at the intersection between the first guide hole and the second guide hole, the clamping rod is distributed in a plurality of intervals around the bearing table, the first guide hole and the second guide hole are each provided with a plurality of clamping rods in correspondence, and the chuck is connected with a driving assembly. The application has the effects of reducing the labor intensity of workers and increasing the feeding and discharging efficiency of workpieces.

The utility model belongs to the technical field of information identification, particularly relates to a limiting device for a shielding door of RFID (Radio Frequency Identification) scanning equipment, and provides the following scheme aiming at the problems that the existing limiting device is complicated in structure and high in cost, and the burden of purchasing and using the equipment is increased for some small enterprises or users with strict cost control. A rolling frame is rotatably connected in the support, electromagnetic shielding cloth is fixedly wound on the rolling frame, and a horizontal rotating shaft is fixedly installed in the rolling frame. When an RFID scanning device sends out a door opening / closing instruction, the driving motor rotates through the horizontal rotating shaft and the unwinding shaft to drive the electromagnetic shielding cloth of the shielding door to ascend and descend; when the electromagnetic shielding cloth of the shielding door arrives at a designated position and the positioning triggering device on the indexing adjusting gear triggers the microswitch, the driving motor can be controlled to stop, so that the electromagnetic shielding cloth can be stably limited, and good practicability is achieved.

A novel automatic reset fixture, relating to the field of aging testing equipment technology, is used for aging testing of devices. From bottom to top, it includes a base plate, a PCB matching board, and a probe limiting plate capable of supporting the device. The PCB matching board has a number of auxiliary probes, and the probe limiting plate has through holes for the auxiliary probes to pass through. Fixture assemblies are respectively arranged on both sides of the PCB matching board. The fixture assemblies include a lower support plate, an upper pressure plate, a flipping plate, a lower pressure plate, two guide shafts, and two compression springs. This fixture is adapted to the automation, flexibility, and intelligent production needs of modern manufacturing, achieving an overall improvement in production quality, efficiency, safety, and control levels through technological optimization, providing reliable tooling support for the stable and efficient operation of the entire production process.

The utility model provides a liquid silica gel injection machine, which relates to the technical field of injection machines, and comprises an injection machine, the top of the injection machine is provided with a lifting groove, the top of the lifting groove is provided with a lifting motor, the lifting groove is internally provided with a threaded rod, the inner side of the lifting groove is provided with a lifting block, and the inner side of the lifting block is provided with a threaded rod. A feeding table is arranged on the side face of the lifting block, a rotating shaft is arranged at the bottom of the feeding table, a rotating disc is arranged at one end of the rotating shaft, a plurality of feeding ports are distributed in the bottom of the rotating disc, and a plurality of mounting blocks are arranged at the top of the rotating disc. According to the utility model, the turntable is manually rotated and is matched with the rotating shaft, so that the feeding hole can be conveniently adjusted according to molds with different sizes, the injection amount of liquid silica gel can be better controlled, excessive or insufficient silica gel is prevented from being injected into the molds, injection blockage is avoided, the waste of the liquid silica gel is reduced, the production cost is reduced, and the production efficiency is improved. All parts of the mold can be uniformly filled with the liquid silica gel, and the production efficiency is improved.

The utility model discloses a carving machine adopting a magnetic suction port, which comprises a control box, two groups of linear guide rails are symmetrically arranged on the output side of the control box, and the tail ends of the two groups of linear guide rails are locked and connected through a group of connecting baffles; a sliding frame is slidably installed between the two linear guide rails, an engraving module is slidably installed on the front side of the sliding frame, a protective sealing plate is installed at the top end of the engraving module in a magnetic attraction mode, and a heat dissipation base is installed at the bottom of the engraving module in a magnetic attraction mode. According to movement of the carving module, a plurality of second magnetic attraction blocks arranged on the front side of a sliding frame are matched with first magnetic attraction blocks on the rear side of a connecting block, limiting of the carving module can be further guaranteed, stability of the carving module in the working state is improved, an interface position is arranged on the top face of a machine, the problem of mistaken touch is effectively solved, a tight connector is adopted, and the working efficiency is improved. And the whole device is connected through magnetic attraction, so that the use is convenient, and the user experience is improved.

The utility model discloses an LED display screen box arc-shaped lock device which structurally comprises a limiting shaft, a clamping bolt mechanism, a lower lock body, an arc-shaped handle, a fixing piece, an upper lock body, an arc-shaped strip and a bolt hole, and the lower end of the clamping bolt mechanism is connected with the arc-shaped handle through the upper lock body. Structurally, the adjusting shaft is adjusted to rotate through an operation tool so as to drive the connected connecting disc to rotate synchronously, further, the polygonal ring is matched with the positioning pin for connection, butt joint is conducted through the connecting disc so as to achieve the knob tightness adjusting process, and accurate rotation in the disassembling and assembling process of the knob can be effectively achieved; and the rotating shaft can be matched with the limiting nut ring to perform tightness adjustment and fixation and guarantee the limiting process in the rotating process through the connected polygonal ring, so that the tightness in the mounting process of the arc-shaped lock is conveniently adjusted, and protectiveness is improved.

The invention relates to the technical field of semiconductors, and discloses a storage device for wafer transportation, which comprises a supporting and guiding mechanism, an isolation mechanism is arranged in the supporting and guiding mechanism, an equidistant scaling mechanism is arranged between the supporting and guiding mechanism and the isolation mechanism, and a scaling adjusting mechanism is arranged on the surface of the supporting and guiding mechanism. An isolation protection mechanism is arranged on the surface of the supporting and guiding mechanism, and a pressing mechanism is arranged at the top of the supporting and guiding mechanism. According to the storage device for wafer transportation, through the arrangement of the supporting guide mechanism, the isolation mechanism, the equidistant scaling mechanism, the scaling adjusting mechanism and the pressing mechanism, scaling of the equidistant scaling mechanism can be adjusted through the scaling adjusting mechanism, and then the size of a gap between isolation clamping plates in the isolation mechanism is indirectly adjusted; it is guaranteed that the wafers can be stably clamped when stored, it is guaranteed that the wafers are tightly attached to the device, and the situation that the surfaces of the wafers are abraded due to sliding friction formed by vibration when the wafers are transferred and transported is avoided.

This invention belongs to the field of wheel adjustment technology and discloses a track electrical automation drive device and its driving method. The drive device includes a support beam, a fixed plate fixedly connected to the lower end of the support beam, a protective sleeve fixedly connected to the lower end of the fixed plate, a drive shaft rotatably connected to the middle of the protective sleeve, a pressure sensor embedded in the inner wall of the protective sleeve, a connecting plate slidably connected to the middle of the protective sleeve, a buffer spring assembly fixedly connected to the upper end of the connecting plate, the top of the buffer spring assembly abutting against the pressure sensor, a fixed ring fixedly connected to the middle of the drive shaft, and an adjustment and limiting mechanism between the fixed ring and the connecting plate. The adjustment and limiting mechanism consists of a support plate, a limiting block, a fixed cylinder, a limiting ring, and ball bearings. An adjusting component is provided on the side end of the protective sleeve, and an adjusting plate is fixedly connected to the upper end of the adjusting component. This invention can adjust and control the wheels of a train, preventing the train from tilting when traveling on curves and ensuring the safety of train operation.

The invention relates to the technical field of finned tubes, in particular to a welding auxiliary device for stainless steel finned tubes. When in use, one end of a tube is fixed on the auxiliary device, and the fin is sleeved into the tube by a sleeve manufacturing process. A gap is left between the fin and the tube after the operation is completed. The fin and the tube are fixed by a vacuum brazing process. Vacuum brazing requires that the solder is melted and then filled into the gap between the fin and the tube by the surface tension of the liquid. In this process, the contact surface between the tube and the fin can be approximated as a filling flow process of a fluid in a parallel plate under the action of surface tension. The invention adopts 304 stainless steel finned tubes to replace traditional carbon steel finned tubes, so that the heat exchange tube has good corrosion resistance inside and outside at the same time. The vacuum brazing technology is used to replace traditional welding or mechanical connection technology to produce finned tubes, thereby improving the production efficiency and connection quality of stainless steel finned tubes.

This utility model relates to the field of photovoltaic bracket purlin technology and discloses a photovoltaic bracket purlin connector, including an inclined beam. A purlin body is provided on the top of the inclined beam, and a slider is slidably connected to the inner wall of the inclined beam. A U-shaped frame is fixedly mounted on the side of the slider. The slider is moved in the inner wall of the inclined beam, and then the bottom of the purlin body overlaps the top of the slider. The outer edge of the limiting plate is driven by the adjusting rod to pass through the inner wall of the second sliding groove and the inner wall of the first sliding groove to the inner cavity of the circular groove. Then the adjusting rod is rotated and then released, thereby using the push plate to assist in pushing the outer edge of the limiting plate to the inner wall of the limiting groove, thereby assisting the purlin body to be erected quickly. The outer edge of the auxiliary plate passes through the inner wall of the auxiliary groove to the inner wall of the purlin body. Then the auxiliary plate is rotated so that the bottom of the auxiliary plate overlaps with the bottom of the inner wall of the purlin body, thereby further ensuring the stability of the purlin body erection.

The application relates to the field of bone joint reduction, and particularly discloses an orthosis for bone joint reduction and fixation, which solves the problems of single function of existing bone joint fixation orthosis, especially the fixation orthosis for knee joints, and the problems of being not conducive to the rehabilitation of the joints of patients and the post-exercise recovery, and the orthosis comprises a base, a limiting box, an opening, a sliding frame, a clamping seat, a fixing clamping plate, an adjusting assembly, a rotating shaft, an upper guard plate, a side plate, a sliding frame, a pressing seat, a rotating plate I, a sliding seat, a cam, and a driving assembly, the outer side of the limiting box is slidably connected with a pulley, a linkage assembly is arranged in the limiting box, and the linkage assembly is used for driving the pulley to slide on the outer side of the limiting box. The device can stably position and fix the knee joints of patients and perform orthosis, does not cause relatively tight clamping to the legs of the patients, is conducive to blood circulation of the legs of the patients, can also assist in pressing and massaging, is conducive to stimulating the muscles of the patients to keep active, and reduces the subsequent rehabilitation and exercise period.

The building steel structure with the good anti-seismic effect comprises a vertical steel frame, a notch is formed in the front face of the vertical steel frame, a transverse steel frame is slidably connected to the notch in an inserted mode, and damping supports used for dispersing seismic force at connecting joints between the vertical steel frame and the transverse steel frame are welded to the top wall and the bottom wall of the notch correspondingly; the clear distance between the two shock absorption supports is consistent with the height of the transverse steel frame, a blocking and protecting assembly used for limiting in front of the transverse steel frame when the transverse steel frame is inserted between the two shock absorption supports is installed on the front face of the vertical steel frame, and each shock absorption support comprises a Z-shaped steel plate with the width consistent with the depth of a notch; and a plurality of spring structures for enhancing deformation force are mounted on the Z-shaped steel plate. The Z-shaped steel plates with the spring structures are arranged on the upper portion and the lower portion of the connecting joint of the transverse steel frame and the vertical steel frame, the inherent frequency of the structure can be adjusted, the inherent frequency of the structure can be better matched with or avoid the frequency of seismic waves, and therefore the dynamic response of the structure is optimized.

The utility model provides an engine tray transfer machine which comprises a machine frame, a sliding table seat, a lifting driving device and a telescopic platform device, and the telescopic platform device comprises a telescopic platform, a bottom plate, a rail platform, a transverse driving assembly and a pair of traction chains. The telescopic platform and the rail platform are connected through traction chains, in the process that the transverse driving assembly drives the rail platform to transversely move, the rail platform drives the telescopic platform to move in the same direction through the traction chains on one side, and after the rail platform moves to the maximum moving stroke, the telescopic platform is driven to move in the same direction. As the traction chain has movement allowance relative to the track platform, the telescopic platform can still continuously move forwards along the track platform under the inertia effect at the moment, and the larger transverse movement distance relative to the track platform is achieved; the track platform is driven by a single power source to move, the telescopic platform further moves relative to the track platform through the traction chain between the telescopic platform and the track platform, the structure is simple, and the manufacturing cost is low.

The utility model relates to the field of UV curing machines, and discloses a coating machine UV curing device for double faced adhesive tape processing, the coating machine UV curing device comprises a box body and a supporting frame, a conveying frame is fixedly installed at the top of the box body, the top of the conveying frame is fixedly connected with a curing machine, a rotating roller is rotatably installed on the inner wall of the supporting frame, and a sliding rail is slidably connected to the inner wall of the supporting frame; two sliding frames are installed on the surface of the sliding rail in a sliding mode, and limiting frames are welded to the bottom ends of the sliding frames. The supporting frame is installed at the top of the conveying frame, the inner wall of the supporting frame is rotationally connected with the rotating roller, the inner wall of the supporting frame is slidably connected with the sliding rail, the bottom end of the sliding rail is slidably connected with the limiting frame through the sliding frame, and the baffle at the bottom end of the limiting frame is slidably connected with the top of the rotating roller, so that the double-faced adhesive tape is conveniently supported through the rotating roller; and the glue body in the double-faced adhesive tape is limited through the baffle at one end of the limiting frame, so that the glue body in the double-faced adhesive tape is effectively ensured to be in a proper position.

The utility model relates to a municipal engineering jacking pipe joint hoisting steering device which comprises a rotating structure and a hoisting structure, the rotating structure comprises a first disc and a second disc which are vertically distributed and horizontally arranged, and a cylinder arranged on the circumferential side walls of the first disc and the second disc in a sleeving mode, and the upper end face of the cylinder is fixedly provided with a first annular plate in a covering mode; a second annular plate is integrally formed on the lower end face of the cylinder, the inner diameter of the second annular plate is smaller than the diameter of the second disc, a first motor is fixed to the lower end face of the second annular plate, an output shaft of the first motor is coaxially and rotationally connected with a first gear, a fluted disc is integrally formed on the lower end face of the second disc, and the first gear and the fluted disc rotate in an engaged mode. The lifting structure comprises a plurality of lifting rings fixed to the upper end face and the lower end face of the rotating structure, and lifting hooks are fixedly connected to the lifting rings in a hung mode.

The utility model discloses a universal coupling which comprises two coupling main bodies and a universal joint assembly, the two coupling main bodies are connected through the universal joint assembly, each coupling main body is composed of a first main body and a second main body, the opposite sides of the first main body and the second main body are respectively provided with a joint part, and the first main body and the second main body are connected through the joint parts. The first main body and the second main body are connected with each other through a joint part, and the total length of the first main body and the second main body is adjusted through the joint depth of the joint part; the joint part comprises a plurality of limiting grooves and a plurality of limiting arms, and the limiting grooves and the limiting arms are alternately arranged in the circumferential direction at equal intervals. According to the universal coupling, in the actual use process, the overall length of the coupling can be adjusted, so that the universal coupling can meet the installation requirement, the universal coupling is high in universality and flexible to operate, meanwhile, due to the usability adjusting capacity of the universal coupling, the number of prepared couplings is reduced, and the equipment cost is saved.