1895results about How to "Improve assembly efficiency" patented technology

The invention discloses an assembly type building stair mold, and relates to the technical field of stair molds, the assembly type building stair mold comprises a mold mechanism, the side face of the mold mechanism is provided with a transverse steel bar limiting mechanism, and the transverse steel bar limiting mechanism is used for limiting and fixing transverse steel bars in a prefabricated stair. According to the longitudinal reinforcement limiting mechanism, the height of a clamping head is accurately adjusted through a third mounting bolt, the clamping head can be flexibly selected according to the diameter of a longitudinal reinforcement, the mounting height and position of the longitudinal reinforcement can be accurately controlled, the overall positioning accuracy of a reinforcement framework is guaranteed, and then the mechanical property of the prefabricated stair is improved; the sleeve plays a role in protecting the end, inserted into the mold mechanism, of the third mounting bolt, it is avoided that concrete adhesion affects bolt disassembly, meanwhile, due to the detachable design of the third mounting bolt and the modular structure of the steel bar limiting mechanism, the demolding difficulty is lowered, damage to stairs after a component is formed is reduced, and the demolding efficiency and the finished product quality are improved.

The utility model relates to a torque fixing sleeve structure for a built-in motor of an electric power-assisted bicycle. The torque fixing sleeve structure comprises a center shaft, a torque sensor, a shell, a circlip for a shaft, a torque fixing sleeve and a fixing screw, the torque sensor is sleeved on the middle shaft, and the axial movement of the torque sensor is limited by the elastic retainer ring for the shaft; the torque sensor is sleeved with the torque fixing sleeve, four right positioning grooves and two left positioning grooves are formed in the two ends of the torque fixing sleeve respectively, and the right positioning grooves and the left positioning grooves are clamped with the inner wall of the shell. The torque fixing sleeve is fixed to the shell through a fixing screw, a wiring port and a wiring channel groove are formed in the torque fixing sleeve, and a sensor wiring harness penetrates through the wiring port and is contained in the wiring channel groove. The problems of high cost, complex structure and difficult maintenance are solved.

The utility model discloses a wallboard external corner connecting structure which comprises an external corner seat, a first connecting seat and a second connecting seat, and the first connecting seat and the second connecting seat are connected with a wallboard. The external corner seat is provided with a first bolt piece and a second bolt piece, the first bolt piece is connected with the first connecting seat, and the second bolt piece is connected with the second connecting seat; the first connecting base and the second connecting base are the same in structure, the first connecting base comprises a supporting profile, a splicing base and a bolt base, the splicing base is connected with one end of the supporting profile, a splicing groove is formed in the splicing base and used for being spliced with a wallboard, the bolt base is connected with the other end of the supporting profile, and a bolt groove is formed in the bolt base and used for being spliced with the wallboard. The bolt groove is used for being in bolt connection with the first bolt piece, and a ceramic tile edge closing arm is arranged on the outer wall of the bolt base. The wall frame has the advantages that the external corners of the spliced wall frame are firmer, splicing can be completed without using many tools, the splicing efficiency is improved, and meanwhile the structure is simple.

The utility model discloses a kind of scooter controller end cover and scooter, the controller end cover includes end cover body, door leaf, hinge, plug-in door column, plug-in buckle, wire harness cavity;End cover body is set as plate block structure and is provided with cavity in center, two door leaves are symmetrically placed in cavity, the root of door leaf is connected with end cover body by its hinge, and door leaf is opened or closed by rotating through its hinge;The outer end of door leaf is provided with prefabricated hole, and wire harness cavity is formed through wire harness;Sealing glue is provided between wire harness cavity inner wall and wire harness;The back of one door leaf is provided with plug-in buckle, the back of another door leaf is provided with matching plug-in door column, and form snap structure fixed.The utility model controller end cover only rotates by its own hinge, and locking is realized when closing by its own snap structure, assembly operation is very simple, convenient to maintain, and stability is high.

The utility model relates to the technical field of aerosol electric heating atomization, and discloses an electronic atomizer which is assembled in a modular mode and divided into a shell assembly, an integrated base and a control assembly, the number of parts on an electronic atomizer overall assembly line is reduced, the assembly process is simplified, and the overall assembly efficiency of the electronic atomizer is effectively improved.

The application relates to the technical field of eyeglass frames, in particular to a clamping type eyeglass frame which comprises a front frame assembly, a temple assembly and a clamping locking assembly. The front frame assembly is provided with a mounting groove, the temple assembly is quickly assembled by being matched with the limiting groove through an elastic buckle, the guide block and the limiting groove ensure accurate positioning, and the reset spring and the unlocking button realize a quick disassembly function. The positioning column and the positioning hole are matched to enhance the connection stability, and the annular groove and the elastic protrusion provide a anti-disengagement function. The application can simplify the assembly process, improve the structural stability, meet the modular design requirement, facilitate users to replace the temples or maintain, meanwhile, the traditional structure loosening problem is avoided, and the use reliability is improved.

This application discloses a method for manufacturing and assembling a wooden ribbed floor slab, relating to the field of product assembly technology. The method involves a robot picking up pre-processed timber from a material table, cutting the end connection surfaces using a CNC platform to obtain the timber to be assembled; positioning the timber to be assembled onto a pre-installed wooden floor slab load-bearing panel, and using a pneumatic nail gun to fix the timber to the load-bearing panel, completing the installation of the circumferential secondary ribs; uniformly applying wood structure adhesive to the pre-designed contact surfaces between the laminated wood strips to be assembled and the load-bearing panel of the wooden floor slab according to a preset assembly plan; using the circumferential secondary ribs as templates, bending the laminated wood strips into radial main ribs using a robot, and installing self-tapping screws to complete the node connection; connecting the column head nodes to the load-bearing panel of the wooden floor slab using self-tapping screws, centrally transferring the end shear force of the radial main ribs to the supporting columns; and through floor slab flipping and top reinforcement processes, the robot additionally installs self-tapping screws to complete the assembly of the wooden ribbed floor slab.

The utility model relates to the technical field of bright decorative strip, disclose a kind of bright decorative strip structure of automobile door and window, including bright decorative strip body, bright decorative strip body outer wall is fixedly connected with mounting post one, the mounting post one outer wall is slidably connected with mounting post two, the mounting post two inner wall is provided with dismounting assembly, the dismounting assembly includes clamping block one, the clamping block one outer wall is slidably connected in mounting post two inner wall, the clamping block one one end is fixedly connected with spring two, the spring two one end is fixedly connected with clamping block two, the clamping block two outer wall is slidably connected with slide column, the slide column outer wall is fixedly connected with spring one, the slide column outer wall is fixedly connected with sliding disc. In the utility model, the bright decorative strip structure of automobile door and window is through mounting post and the dismounting assembly of sliding fit, the quick installation and preliminary fixation of bright decorative strip are realized, clamping block is automatically clamped into corresponding recess under the action of spring, ensure that installation process is convenient and stable, significantly improve assembly efficiency.

The utility model relates to ecological retaining wall technical field, concretely is a kind of assembled ecological retaining wall block, including base block, protruding part, butt joint assembly, ecological groove, first connecting hole, second connecting hole and connecting assembly;Ecological groove is set away from the end of base block and soil layer contact;First connecting hole is provided with two groups;Connecting assembly is respectively detachably connected with the second connecting hole and first connecting hole in the upper and lower two groups of base blocks.The utility model is connected with the horizontal direction of adjacent two groups of base blocks by butt joint assembly, and the connection stability is high;Through connecting assembly, adjacent two groups of base blocks are connected in vertical direction, and the assembly efficiency is improved by assembling fast and convenient;Through the setting of rack and give place to part, the contact area of base block and soil layer is improved, the contact surface of the upper and lower adjacent multiple groups of base blocks and soil layer is trapezoidal by the setting of protruding part, further improves adhesion, and improves use safety.

This utility model discloses a novel automotive armrest panel, comprising: a panel body, a storage groove in the center of the panel body, limiting grooves on the upper and lower left sides of the storage groove, a strip-shaped limiting groove at the bottom of the limiting groove, positioning plates on both sides of the limiting groove, semi-circular limiting openings on the positioning plates, two sets of strip-shaped limiting openings between the two sets of limiting grooves, a snap-fit ​​fixing opening between the two sets of strip-shaped limiting openings, a downwardly extending square fixing frame on the outer right side of the panel body, and interconnected U-shaped limiting plates on the outer left side, outer upper side, outer lower side of the panel body, and bottom of the square fixing frame, with mounting openings at the bottom of the U-shaped limiting plates. This utility model ensures the rigidity and reliability of the connection between the entire panel assembly and the vehicle body through the U-shaped limiting plates and the mounting openings at the bottom.

The utility model relates to the technical field of breathing machine fans, in particular to a fan volute structure for a breathing machine. The volute structure comprises an outer shell, a driving mechanism and a control part, the outer shell comprises an upper shell body and a lower shell body which are in butt joint, an air inlet is formed in the upper shell body, the upper shell body and the lower shell body are in butt joint, an air outlet is formed in one end of the outer shell body, an air cavity for communicating the air inlet and the air outlet is formed in the outer shell body, and the upper shell body is arranged in a concentric circle; the lower shell is not arranged in a concentric circle; the driving mechanism comprises a motor shell, a driving assembly, a fan blade piece and a first lower end cover, one end of the motor shell penetrates through the lower shell, the driving assembly is located in the motor shell, the rotating shaft is exposed out of the motor shell and connected with the fan blade piece, the fan blade piece is located in the air cavity, and the first lower end cover abuts against the motor shell and is connected with the lower shell; the control piece is contained in the first lower end cover, electrically connected with the driving assembly and externally connected with a power source. Efficient airflow conduction can be achieved, and the noise of the fan can be reduced.

The present application relates to the technical field of power transmission tower, and discloses a connecting joint of a steel pipe angle steel in a steel pipe tower of a power transmission line, two groups of the symmetrical clamping ends of the symmetrical clamping seats are provided with tight clamping plates, and the two sides of the two groups of symmetrical clamping seats are symmetrically provided with two groups of positioning bases, the inner sides of the two groups of positioning bases are symmetrically provided with two groups of direction adjusting guide rods, the end faces of the two groups of direction adjusting guide rods are symmetrically provided with direction adjusting holes, and the outer sides of the two groups of direction adjusting guide rods are provided with connecting seat assemblies. The present application replaces the welding connection form of the traditional cylindrical steel pipe main material and the angle steel auxiliary material, through the clamping of the two groups of symmetrical clamping seats, under the matching combination of the direction adjusting guide rods and the connecting seat assemblies, on the one hand, the present application has good uniform stress performance, so that the pressure of the high-voltage line is transmitted to the connecting joint through the angle steel auxiliary material, and then is uniformly transmitted to the cylindrical steel pipe main material through the connecting joint, thereby improving the stress stability of the steel pipe tower.

This application relates to the field of precast box girder steel mesh assembly technology, and in particular to a vision-guided flexible assembly method and system for precast box girder steel mesh. The system includes an image acquisition module, a path planning module, an assembly execution module, and a detection feedback module. It acquires steel mesh image data in real time through a vision sensor, combines it with a collaborative robot to complete precise assembly, and then detects and adjusts the assembly results. This application can solve the problems of low automation, high mechanical operation difficulty, and low construction efficiency in traditional steel mesh processing and assembly, significantly improving assembly accuracy and efficiency, optimizing the longitudinal reinforcement insertion and top slab steel reinforcement skeleton forming processes, and achieving efficient and flexible production.

The utility model provides a kind of current transformer and GIS, belong to high voltage switch field.The current transformer includes mutual inductor cylinder and flange, the outside of flange is equipped with gasket by fastener, the height of mutual inductor cylinder protruding from the outside of flange is greater than the height of fastener and gasket protruding from the outside of flange, one end of mutual inductor cylinder is provided with tangent outside fillet and inside fillet passing through spacer ring, the radius of inside fillet is ten times to fifteen times of the radius of outside fillet, the junction of inside fillet and mutual inductor cylinder inside surface is located between the outside surface and inside surface of flange.The GIS includes the current transformer described above.The utility model dispenses with shielding ring, but by the design and optimization of mutual inductor cylinder structure, the end of mutual inductor cylinder can replace shielding ring and play the role of shielding isolation between conducting rod and gasket, screw.

The utility model provides a kind of fire-fighting spray vertical support pipe quick alignment structure, it is related to pipeline alignment technical field, including support, multiple fixed force are provided on support along length direction, and fixed force is used for for horizontal pipe to pass through and is fixed to horizontal pipe;Infrared emitter is installed in one side of support, for emitting bar light, bar light forms optical path along vertical direction and is irradiated to tee, when rotating tee makes the casting line of its outer wall and vertical optical path coincide, then the side mouth of tee is in vertical state;Fixed force and infrared emitter are all installed on adjusting assembly, adjusting assembly can adjust the height of fixed force and infrared emitter and is fixed after adjustment.The utility model can be in ground assembly stage to tee and be aligned and fixed in unified direction, to ensure vertical support pipe installation consistency, avoid leakage risk caused by secondary tightening, and effectively improve overall installation efficiency.

The utility model discloses a kind of discharging equipment for automation assembly, including feeding mould, feeding mechanism, mould rotating mechanism, feeding and discharging conversion mechanism and jacking mechanism, feeding mould is equipped with multiple storage long groove, storage long groove can be one-to-one corresponding with magnet slot on rotor core;Feeding mould is rotated around its axial line by mould rotating mechanism drive, to make storage long groove sequentially with the discharge port of feeding mechanism alignment;When storage long groove and discharge port are aligned, magnet is exported from discharge port to storage long groove by feeding mechanism;Feeding and discharging conversion mechanism is transferred to the feeding mould of the magnet of well assembled in discharging station, the axial one end of feeding mould located in discharging station is to jacking mechanism, the other end is to the end of rotor core;Magnet in the feeding mould located in discharging station is pushed out to end by jacking mechanism, realize the automatic discharging of multiple magnets according to specific arrangement, can be assembled with rotor core, improve assembly efficiency.

The present application relates to the technical field of clothes processing, and particularly provides a drying system and clothes processing equipment, aiming to solve the problem of poor stability of the compressor caused by the existing installation mode of the compressor. To this end, the drying system of the present application comprises a base, a heat pump module and a metal bracket, the base is formed with a drying air duct, the evaporator and the condenser of the heat pump module are both installed inside the drying air duct, and the metal bracket is located between the compressor of the heat pump module and the base and is fixedly connected with the compressor and the base. By additionally arranging the metal bracket between the compressor and the base, the contact area with the base is increased, so that the compressor is more stable, the compressor is more stably operated, and the metal bracket has high structural strength, which is more conducive to improving the stability of the compressor. In addition, the metal bracket can also play a certain buffering role, which is conducive to reducing the vibration of the base, thereby reducing the noise during equipment operation and improving the user experience.

The utility model discloses an unmanned aerial vehicle-mounted radar hanger structure with a damping function, which relates to the technical field of unmanned aerial vehicles and comprises an unmanned aerial vehicle body, a base net rack and a pull net rack. The base net rack is connected to the bottom surface of the unmanned aerial vehicle body through bolts, and the lower part of the base net rack is provided with a sunken upper mounting groove; the pull net rack is arranged below the base net rack, the edge of the pull net rack is connected with the base net rack through a plurality of elastic connecting pieces, the upper portion of the pull net rack is provided with a sunken lower installation groove, and the lower installation groove corresponds to the upper installation groove and is used for being connected with the airborne radar in a clamped mode. Through the elastic connecting pieces between the base net rack and the towing net rack and the elastic supporting pieces on the towing net rack, vibration and impact generated in the flying process of the unmanned aerial vehicle can be effectively absorbed and buffered, precise equipment such as airborne radar can be protected, the performance of the unmanned aerial vehicle is improved, and the service life of the unmanned aerial vehicle is prolonged.

The fragmented tower drum assembling system comprises a splicing device, the splicing device comprises a rack, a lower-layer support is arranged on the lower side in the rack, a plurality of first jacking devices are installed in the middle of the lower-layer support at intervals in the length direction of the rack, and first conveying assemblies are installed at the tops of the first jacking devices; supporting bases are fixedly arranged on the portions, located on the two sides of the first jacking device, of the lower-layer support correspondingly, a plurality of lifting carrier roller assemblies are installed on the supporting bases, gear motors are installed at the two ends of the top of the rack correspondingly, rotating discs are installed at the output ends of the gear motors, and a plurality of tensioning limiting devices are installed on the rotating discs. The tensioning limiting devices on the rotating disc are used for tensioning and fixing the auxiliary plates at the two ends of the tower drum fragments, so that rapid positioning of the tower drum fragments is achieved, the tower drum fragments are rapidly installed and fixed to the rotating disc, in the splicing process, hoisting equipment is not needed, safety is better, and the splicing efficiency is higher.

The utility model relates to a light-cured resin filling pipe machining device which comprises a machine table, a rotary table mechanism, a first feeding mechanism used for conveying a pipe body of a filling pipe, a second feeding mechanism used for conveying a middle bolt of the filling pipe, an assembling mechanism used for assembling the pipe body and the middle bolt and a discharging mechanism. A first feeding station, a second feeding station, an assembling station, a detecting station and a discharging station are sequentially arranged on the machine table in the rotating direction of the rotating disc mechanism. The rotating disc mechanism comprises a rotating disc rotationally connected to the machine table and at least one jig which is fixedly arranged on the rotating disc and sequentially passes through the first feeding station, the second feeding station, the assembling station, the detecting station and the discharging station through rotation of the rotating disc. According to the filling pipe assembling machine, the assembling process of the filling pipe body and the middle bolt is automated, the labor cost is reduced, the assembling efficiency is improved, and an implementation basis is provided for automatic assembling of the filling pipe.

The utility model belongs to automatic assembly equipment field provides a kind of for the automatic assembly equipment of plug and tray, including rack and the bearing mechanism, positioning mechanism, feeding mechanism and assembly mechanism being set on the rack.Compared with prior art, the utility model has the advantages that by setting bearing mechanism and positioning mechanism cooperation, the tray to be assembled can be stably fixed, and the accuracy of assembly reference is ensured;After the plug is adjusted to array arrangement by pushing material block and is filled to assembly mechanism synchronously, the feeding efficiency is significantly improved;In addition, the cooperation of material guide block, anti-drop block and elastic limiting block allows multiple plugs to be squeezed and compressed in the filling direction to accommodate the arrayed plugs, and then the plugs are elastically reset to prevent them from falling out, achieving orderly temporary storage and one-way guidance of the plugs, ensuring the continuity and stability of subsequent assembly, and the overall structure realizes efficient and accurate automatic assembly of the plugs to the tray, improving the assembly efficiency and quality of the tray and the plug.

The application discloses an engine and a motorcycle adopting the engine. The engine comprises a shell part, a bolt fastener and a sealing washer. The bolt fastener is arranged in the sealing washer and connected with the shell part. The sealing washer comprises a sealing hole for the bolt fastener. A convex part capable of being elastically deformed is formed on the inner wall of the sealing hole. The convex part makes the inner diameter of the sealing hole smaller than the diameter of the bolt fastener. Through the above arrangement, the assembly efficiency of the bolt fastener can be improved.

This invention relates to a tire pressing device suitable for both solid and pneumatic tires. A lifting cylinder is mounted on the pressing base plate, and a lifting fixture that mates with the rim surface is mounted on top of the lifting cylinder. A support body is mounted downwards on the pressing base plate, and multiple first and second pressing heads are evenly distributed circumferentially at the end of the support body. The first pressing heads correspond to the retaining ring position on the rim, and the second pressing heads correspond to the tire spokes. The lifting cylinder provides an upward force, with a hydraulic pressure exceeding 60 tons, suitable for pressing solid tires. When the second pressing head applies pressure to the tire spokes, the relative elasticity between the spokes and the tire's inner ring creates a gap between the tire's inner ring and the rim and retaining ring, allowing the first pressing head to easily press the retaining ring into the rim's clip. The process is much easier with pneumatic tires, ultimately achieving a dual-purpose machine.

This application relates to an assembly device for an EPB transmission structure, specifically within the technical field of EPB power heads. The assembly device includes a conveyor line, a fixture, a clamping mechanism, a robotic arm, and an oiling mechanism. The fixture positions the housing and places it on the conveyor line for transport. The clamping mechanism presses against the housing for positioning. The oiling mechanism includes an oiling ring mounted on a mounting frame with multiple oiling holes arranged in a circular array inside; and a conveyor belt that transports gears at intervals. This application utilizes a robotic arm to grasp and drive the transport gears, and the multiple oiling holes in the oiling ring, in conjunction with the gear rotation, uniformly add lubricating oil to the gears. After adding oil, the gear rotation causes excess lubricating oil to flow back into the oiling ring, improving assembly efficiency and oiling quality while reducing lubricating oil waste and the risk of environmental pollution.

The application provides an orthopedic surgery puncture device convenient to use, and relates to the technical field of medical devices, which comprises a needle core sleeve body, a push ring is sleeved on the needle core sleeve body, pressing plates are arranged on the left and right sides of the bottom of the needle core sleeve body, the two pressing plates are symmetrically distributed, and a push rod is arranged between the pressing plates and the push ring. In the application, the push ring and the pressing plates are arranged, so that the needle core sleeve body does not need to be held by hand, the hands can be held to stably hold the frame body to perform puncture on the needle core body, the butt joint structure arranged on the needle core body and the rotating pipe can make the positioning of the assembly process of the needle core body more accurate, the needle core body can be quickly disassembled and replaced, the problem that the medical staff needs to hold the needle core sleeve with one hand and hold the puncture needle core to perform puncture with the other hand during the surgery process is solved, the use is more convenient, the needle core sleeve is less likely to deviate, the stability of the surgery is affected, and the connection structure of the puncture needle core and the hand holding part is not easy to disassemble, so that the assembly and use efficiency is low.

This utility model discloses a quick-sealing installation structure for a hydraulic cylinder used in a hydraulic press, including a cylinder body with a cavity for accommodating a piston rod, one end of which is open; a sealing assembly including at least one sealing ring surrounding the piston rod; and a mounting base fixedly disposed at the open end of the cylinder body, with a mounting groove for mounting the sealing assembly. This utility model relates to the technical field of sealing installation structures. This quick-sealing installation structure for a hydraulic cylinder used in a hydraulic press, through the synergistic action of a limiting component, allows for the positioning and fixing of the sealing component without complex tools. The cooperation between the positioning post and the positioning groove ensures accurate installation of the sealing component, and the snap-fit ​​structure between the limiting post and the limiting ring enables rapid locking, significantly shortening installation time, reducing operational difficulty, and improving assembly efficiency.

This utility model provides a contour-following suction positioning fixture, which reliably positions and adsorbs a central component, thereby improving positioning accuracy and assembly efficiency. It includes: a base plate, arranged along its length, with a concave central region forming a groove conforming to the central component; both ends of the base plate are concave to form recessed surfaces; the surface of the groove is arranged with several suction holes; a suction chamber is provided inside the base plate; all suction holes connect to the suction chamber; the suction chamber connects to an external suction notch; the suction notch achieves reliable adsorption and positioning of the central component through an external suction device; and a convex positioning protrusion is provided on the recessed surface; and a tray, including a central clearance notch conforming to the surface of the base plate excluding the recessed surfaces at both ends; positioning holes are provided at both ends of the tray corresponding to the positioning protrusion.

The utility model discloses a vehicle wire harness connector and a vehicle, the vehicle wire harness connector comprises a male end sheath and a female end sheath, the male end sheath and the female end sheath are correspondingly provided with a plurality of wire harness access holes, the housing of the female end sheath is provided with a mounting warping plate, the housing of the male end sheath is provided with a mounting groove matched with the mounting warping plate, and the mounting warping plate is provided with a mounting groove matched with the mounting warping plate. And the mounting warping plates are positioned on the two sides of the female end sheath and are clamped with the mounting grooves on the corresponding sides. And the female end sheath and the male end sheath are clamped in a manner of arranging the mounting warping plate. The installation warping plates are arranged on the two sides of the female end sheath, the female end sheath is connected with the two ends of the male end sheath, the connection stability is improved, the installation warping plates at the two ends achieve the guiding effect on connection of the male end sheath and the female end sheath, smooth connection of wire harnesses is guaranteed, winding disorder is avoided, and when maintenance and disassembly are needed, the installation warping plates are not damaged. The female end sheath can be easily separated from the male end sheath by pressing down the mounting warping plates on the two sides, and maintenance personnel can carry out disassembly and assembly work with one hand under the condition that the space is limited, so that the maintenance efficiency can be improved.

The invention belongs to the technical field of medical equipment, and particularly relates to anti-jumping needle forceps. In order to solve the problem that in the prior art, needle holding forceps are prone to jumping in the process of adjusting the size of forceps heads, the anti-jumping needle holding forceps are provided and comprise a left rotatable forceps handle, a right rotatable forceps handle, a forceps handle connecting assembly, a pull rod, a movable forceps head and a fixed forceps head. The clamp handle connecting assembly is connected with the pull rod, and the movable left clamp handle and the movable right clamp handle can enable the clamp handle connecting assembly to rotate to generate axial linear motion force on the pull rod in a direct / indirect mode so as to pull the movable clamp head to achieve opening and closing of the clamp head; a pull rod sliding limiting part located on the side, close to the pull rod, of the fixed plier head is arranged, the pull rod is provided with a limiting protrusion, and the limiting protrusion is matched with the pull rod sliding limiting part to enable the pull rod to stably move in the axial direction. The pull rod is prevented from jumping by pressing the outer wall of the pull rod sliding limiting part on the two sides of the limiting protrusion, so that jumping of the forceps head connected with the pull rod is limited, and the stability of adjusting the opening and closing angle of the needle holding forceps head is improved.

This utility model discloses a waterproof power adapter. The housing has an annular top step; the top step has an annular positioning groove, and the underside of the cover has an annular positioning ring wall that can fit into the positioning groove. The housing has an upward-extending annular surrounding wall outside the positioning groove. The annular surrounding wall, the top step, and the positioning ring wall form a sealing groove for injecting sealant. The housing has a connector for a power cord; the connector extends upward to connect to the sealing groove; the power cord's connector terminal can be inserted into the connector from above. This utility model, through the nested fit of the annular positioning groove and the positioning ring wall, combined with the innovative connection design between the sealing groove and the connector, achieves significant optimization in sealing performance, cost control, and assembly efficiency.