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24results about How to "Quick splicing installation" patented technology

Plastic pipeline convenient to splice

The utility model discloses a plastic pipeline convenient to splice, which comprises a first pipeline, the other end of the first pipeline is correspondingly provided with a second pipeline, one end of the first pipeline is fixedly connected with a connecting pipe, the outer ring of the connecting pipe corresponds to the inner ring of the second pipeline, one end of the first pipeline is fixedly connected with a first connecting piece, and the other end of the first pipeline is fixedly connected with a second connecting piece. A first connecting piece is fixedly connected to one end of the first pipeline, a second connecting piece is fixedly connected to one end of the second pipeline, the first connecting piece corresponds to the second connecting piece, and second mounting blocks are fixedly connected to the upper end and the lower end of the first connecting piece. And the first mounting blocks, the second mounting blocks, the limiting blocks, the limiting grooves, the positioning blocks and the positioning grooves are arranged on the first connecting piece and the second connecting piece, so that the two pipelines can be quickly spliced and mounted, and the convenience and practicability of the two plastic pipelines during splicing are improved.
Owner:SUZHOU WANNIANTONG PIPE IND

Spliced aluminum veneer with good wind resistance

ActiveCN222595256UQuick splicing installationImprove sealingSingle plateMechanical engineering
The utility model discloses a spliced aluminum veneer with good wind resistance in the technical field of aluminum veneers, which comprises an aluminum veneer, a sealing sleeve is arranged on the outer wall of the aluminum veneer, sealing grooves are arranged on the left side wall and the front side wall of the sealing sleeve, four groups of inserting holes are arranged at the bottom in the sealing grooves, sealing blocks matched with the sealing grooves are arranged on the rear side wall and the right side wall of the sealing sleeve, and the inserting holes are matched with the inserting holes. According to the aluminum veneer splicing device, under the cooperation of the sealing sleeve, the sealing groove, the sealing block, the inserting holes and the fixing assemblies, aluminum veneers can be quickly spliced and installed, meanwhile, the splicing sealing performance of the aluminum veneers is improved, the gap between every two adjacent aluminum veneers is reduced, and the service life of the aluminum veneers is prolonged. Therefore, wind cannot enter the curtain wall aluminum veneers from gaps between the aluminum veneers when encountering wind, and the wind resistance is high.
Owner:YANGZHOU CHANGXIANG NEW MATERIAL CO LTD

An easy-to-install reinforced concrete drainage pipe

This utility model discloses an easy-to-install reinforced concrete drainage pipe, including a first pipe and a second pipe disposed to the side of the first pipe. A sealing snap-fit ​​first is fixedly connected to the outer contour of the first pipe near the second pipe. A sealing snap-fit ​​second, detachably connected to the sealing snap-fit ​​first, is fixedly connected to the outer contour of the second pipe near the first pipe. A connecting pipe is snapped onto the opposite sides of the first and second pipes. Fixing bolts are provided at the four corners of the sealing snap-fit ​​second and are bolted to the sealing snap-fit ​​first. This utility model, through the design of the sealing snap-fit ​​first, sealing snap-fit ​​second, and connecting pipe, allows workers to quickly assemble and install the two pipes. After installation, it effectively seals the connection between the two pipes, increasing the sealing effect.
Owner:HEBEI JUNYUAN PIPE IND CO LTD

Insulation protection connector

The utility model relates to the technical field of connectors, and discloses an insulation protection connector, which comprises a PVC (polyvinyl chloride) shell, a tail sheath is fixedly connected to the middle of the outer wall of the left side of the PVC shell, conductive wires which are uniformly distributed penetrate through the inner wall of the tail sheath, anti-slip strips are arranged at the upper end and the lower end of the tail sheath, and the anti-slip strips are connected with the PVC shell. The rear end of the top of the PVC shell is fixedly connected with an arc-shaped strip, corrosion lines are arranged on the outer wall of the PVC shell, an observation groove is formed in the bottom of the tail sheath, and a splicing assembly is arranged at the front end of the PVC shell. According to the utility model, the anti-slip strip is convenient for a worker to take, the corrosion lines and the arc-shaped strip on the surface of the top of the PVC shell are used for avoiding falling, the VC shell can be insulated, the installation safety is improved, and an object at the bottom is limited through the slotted hole, the inserting rod, the limiting rod, the limiting hole and the fixing rod, so that the safety of installation is improved. Positioning and rapid splicing installation can be achieved through the sliding block and an object at the bottom.
Owner:GUANGZHOU HUANQIU ELECTRICITY IND ELECTRICAL APPLIANCE CO

Bridge steel structure base

The utility model provides a bridge steel structure base, which relates to the technical field of bridge bases and comprises two base main bodies, two fixing blocks are fixedly mounted on the outer surface walls of the two base main bodies, positioning holes are formed in the tops of the four fixing blocks, two strip-shaped blocks are fixedly mounted on the outer surface walls of the two base main bodies, and the strip-shaped blocks are fixedly mounted on the outer surface walls of the two base main bodies. And positioning blocks are fixedly mounted at the bottoms of the four strip-shaped blocks. According to the utility model, through the action of the two fixing blocks and the two positioning holes on one base main body and the action of the two strip-shaped blocks and the two positioning blocks on the other base main body, the two base main bodies can be conveniently and rapidly spliced and installed together; and secondly, a guide groove and a convex block on one reinforcing bottom plate correspond to a guide strip and a slot on the other reinforcing bottom plate, so that the efficiency of splicing and mounting the two base main bodies together is further improved, the mounting time is saved, and the efficiency of mounting the bridge steel structure base is improved.
Owner:SHANDONG GUIHE STEEL STRUCTURE ENGINEERING CO LTD

Fastening assembly for assembly type decoration

ActiveCN222183947Uprecise positioningQuick splicing installationCovering/liningsButt jointFixed frame
The utility model discloses a fastening assembly for assembly type decoration, which belongs to the technical field of assembly type decoration, aims at solving the problems that a plurality of decorative plates are complex to install on a wall body and inconvenient to disassemble, and comprises a fixed frame, and a first decorative plate and a second decorative plate are arranged in the fixed frame. The first decorative plate is arranged on one side of the second decorative plate, a splicing clamping block is fixed to one end face of the second decorative plate, a splicing reinforcing mechanism is arranged outside the splicing clamping block and comprises a fixing block, a telescopic sliding rod and a reset spring, the fixing block is fixed to the surface of the splicing clamping block, and the telescopic sliding rod is fixed to the upper surface of the fixing block. According to the splicing reinforcing mechanism, the elastic force of the jacking protruding block is restored again through the resilience force of the reset spring, fixing is achieved in the mode, the step that manual positioning and butt joint debugging are needed when a traditional decorative plate is spliced independently is omitted, follow-up centralized dismounting is facilitated, and the production efficiency is improved. And a plurality of decorative plates can be quickly spliced and mounted on the wall body.
Owner:BEIJING XINAORUIZHI TECH DEV CO LTD

A multifunctional energy-saving board

ActiveCN111622439BQuick splicing installationIncrease the use of functionsCovering/liningsCeilings
The present invention discloses a multifunctional energy-saving board, including an energy-saving board body, a connecting plate fixed on the surface of the energy-saving board body, a convex block fixed on one side surface of the energy-saving board body, a first groove opened on the surface of the convex block, a first clamping block slidably clamped in the first groove, a first spring fixed on the end of the first clamping block, and the other end of the first spring fixed to the inner wall of the first groove. By arranging the convex block, the first groove, the first spring, the first clamping block, the clamping groove and the second groove, the energy-saving board can be quickly spliced ​​and installed, which effectively improves the installation efficiency, and also avoids the use of glue to cause the later emission of formaldehyde and other harmful gases and endanger the health of users; by arranging the connecting plate, the third groove, the sliding groove, the first slider, the clamping rod, the second spring, the fixing plate and the buffer layer, the use function of the energy-saving board is expanded, the buffering property of the energy-saving board is improved, and the safety of users in special occasions such as children's activity rooms and interrogation rooms is guaranteed.
Owner:ZHEJIANG XINZHONGHUAN CONSTR GRP CO LTD

Multi-unit modular side battery replacement platform

The utility model relates to the technical field of battery replacing platforms, in particular to a multi-unit modularized side battery replacing platform which comprises a multi-unit modularized battery replacing platform body which is composed of a first ramp, a second ramp, a front wheel positioning portion, a rear wheel positioning portion, a battery replacing portion and a control portion, and the first ramp, the second ramp, the front wheel positioning portion, the rear wheel positioning portion and the battery replacing portion are used for vehicles to enter and exit. The defects in the prior art are overcome, under the matching action of the positioning plate and the like, the pull rod is pulled to move upwards, the pull rod moves upwards so as to drive the sliding rod and the positioning plate to move upwards along with the pull rod, at the moment, the second ramp and the front wheel positioning part can be spliced, the connecting plate is moved to the position below the positioning plate, and then the front wheel positioning part is spliced. And then the pull rod is loosened, so that the positioning plate is pushed to move downwards and is positioned and mounted with the connecting plate under the automatic reset action of the telescopic spring, splicing mounting can be quickly completed, the splicing device is convenient to disassemble and replace in the later period, the splicing device is simple and convenient, and the difficulty of mounting operation is further reduced.
Owner:BENGBU LANCHI AUTOMOBILE CO LTD

A fireproof and thermal insulation curtain wall for building construction

ActiveCN224634158UQuick splicing installationImprove installation efficiency
This utility model relates to the field of building engineering technology, specifically a fireproof and heat-insulating curtain wall for building engineering, including a curtain wall body, a sealing plate, and a support plate. Each curtain wall body has a fixing plate at its top, and long bolts pass through pre-drilled openings at the top of the fixing plates. Sealing plates and support plates are respectively provided at the top and bottom between two sets of curtain wall bodies. A fireproof layer and a reinforcing layer are respectively provided between the two sets of curtain wall bodies. Bolts are installed and tightened at the bottom front side of each curtain wall body through pre-drilled openings. By inserting a concave locking block between two sets of slots, inserting a plug-in post wrapped with an anti-slip plate into the plug-in hole, and then pressing the two ends of the locking block into the slot, the two sets of curtain wall bodies can be quickly spliced ​​and installed, improving installation efficiency and thus practicality. The sealing layer between the two sets of curtain wall bodies can seal the joint gaps, further improving the sealing performance.
Owner:JIANGSU CHINA CONSTR ENG DESIGN & RES INST CO LTD

Quickly-assembled foam concrete wallboard

ActiveCN224186984UQuick splicing installationEnhanced seam stabilityWallsProtective buildings/sheltersIsosceles trapezoidFoam concrete
The utility model relates to the technical field of foam concrete wallboards, and discloses a fast-assembly type foam concrete wallboard which comprises a foam concrete wallboard body, the right side of the foam concrete wallboard body is fixedly connected with a clamping block, and the section of the clamping block is in an isosceles trapezoid shape. A clamping groove clamped with the clamping block is fixedly connected to the left side of the foam concrete wallboard body, a splicing block with an arc-shaped section is fixedly connected to the top of the foam concrete wallboard body, and a splicing groove is formed in the bottom of the foam concrete wallboard body; the left wall plate and the right wall plate are quickly positioned through embedding of the clamping blocks and the clamping grooves, the transverse splicing structure is locked in cooperation with the limiting rods penetrating through the clamping blocks and the wall plates and the elastic dampers, the upper wall plate and the lower wall plate are vertically and accurately aligned through the splicing blocks and the splicing grooves, and the installation efficiency and the alignment precision of the wall plates are remarkably improved; the method is suitable for high-efficiency construction scenes of fabricated buildings.
Owner:ZHENGZHOU UNIV

Concrete building template for civil construction

The utility model discloses a concrete building template for civil construction, which relates to the field of building templates and comprises an A side template, a motor frame is fixedly mounted on one side of the A side template, a servo motor is fixedly mounted on the top surface of the motor frame, and a leveling mechanism is fixedly arranged at the output end of the servo motor. Splicing blocks are movably arranged on the two sides of the A-side formwork correspondingly, an edge formwork is fixedly arranged on one sides of the splicing blocks, a butt joint block is fixedly arranged on one side of the edge formwork, a B-side formwork is movably arranged at one end of the butt joint block, and supporting mechanisms are fixedly installed on the surface of the edge formwork and the surface of the B-side formwork correspondingly. Through the arrangement of the leveling mechanism, concrete is poured in the formwork, an external power source is communicated, the servo motor drives the threaded lead screw to rotate, and then the threaded block and the leveling plate are driven to move, so that the effect of leveling the concrete in the formwork is achieved, and the quality of a concrete prefabricated slab is improved.
Owner:HEBEI TONGTAI CONSTR CO LTD

Concrete building template

The utility model relates to a concrete building formwork which comprises a concrete formwork body, an inserting-connecting groove is formed in the side wall of the concrete formwork body, an inserting-connecting block matched with the inserting-connecting groove in an inserting-connecting mode is fixed to the side wall of the concrete formwork body, the section of the inserting-connecting block and the section of the inserting-connecting groove are both in a T shape, and a plurality of mounting grooves are formed in the inner wall of the inserting-connecting groove; a plurality of connecting grooves are formed in the side walls of the concrete formworks, a plurality of fixing grooves are formed in the side walls of the inserting blocks, fixing assemblies are installed on the concrete formworks, each fixing assembly comprises a fixing block and a moving rod, and when a plurality of concrete formworks need to be spliced, a worker inserts the inserting blocks of the building formworks into the inserting grooves of the adjacent concrete formworks; as the cross sections of the inserting grooves and the inserting blocks are T-shaped, the situation that the inserting blocks fall off from notches in the side faces of the inserting grooves is avoided, workers move the fixing blocks through the moving rods to enable the fixing blocks to be inserted into the inserting grooves and fix the inserting blocks, the tedious operation of fixing through rivets is omitted, and the splicing efficiency and stability of the concrete formworks are improved.
Owner:安徽笃行建设有限公司

Sound absorption structure of environment-friendly plywood

The sound absorption structure comprises a plate body, one end of the plate body is fixedly connected with a limiting block, the other end of the plate body is provided with a limiting groove, the limiting block corresponds to the limiting groove, an open groove is formed in the limiting block, one end of the inner side of the open groove is fixedly connected with a spring, and the other end of the inner side of the open groove is fixedly connected with the sound absorption structure. The other end of the spring is fixedly connected with a limiting plate, the other end of the limiting plate is fixedly connected with a positioning block, positioning grooves are formed in the two ends of the limiting groove, and the positioning block corresponds to the positioning grooves. By arranging the limiting blocks, the limiting grooves, the positioning grooves and the positioning blocks, a worker can conveniently and rapidly splice and install the two pieces of plywood, the installation convenience and practicability between the plywood can be improved, and meanwhile the sound absorption and sound insulation effects of the plywood can be greatly improved by arranging the sound absorption layers and the sound insulation layers in the plywood.
Owner:LINYI YITENG WOOD IND CO LTD

Interlocking high-overlapping building block

The utility model provides an interlocking high-superposition building block, which relates to the technical field of building blocks, and comprises a building plate, the cross section of the building plate is square, the center of the building plate is provided with a preformed hole, the surface of the building plate is provided with a splicing device, the splicing device comprises two T-shaped blocks, the two T-shaped blocks are positioned on two adjacent sides of the building plate, and the two T-shaped blocks are connected with the building plate. T-shaped blocks are arranged on the two sides of the building plate, T-shaped grooves are formed in the other two sides of the building plate, the size of the T-shaped blocks is matched with the size of the T-shaped grooves, inserting rods are arranged on the building plate in a sliding and inserting mode through the T-shaped grooves, inserting holes are formed in the positions, corresponding to the inserting rods, of the T-shaped blocks, the size of the inserting holes is matched with the size of the inserting rods, and the building plate is fixedly connected with two symmetrical positioning rods through the T-shaped grooves. By means of the splicing device, the effect that a worker can conveniently and rapidly splice and install the two building plates is achieved, then the working efficiency of the worker is improved, and convenience is brought to the worker.
Owner:LIUZHOU GANYU BUILDING MATERIALS CO LTD

Combined water heater smoke tube convenient to splice and install

ActiveCN222298192UQuick splicing installationquick sealFluid heatersChimneysThermodynamicsStructural engineering
The utility model discloses a combined water heater smoke tube convenient to splice and install. The combined water heater smoke tube comprises a corrugated tube, the top of the mounting mechanism is fixedly connected with the bottom of the corrugated pipe, and the outer wall of the mounting seat and the inner wall of the mounting mechanism are arranged in a sleeving mode; the outer walls of the sealing rings are fixedly connected with the outer wall of the bottom of the mounting seat, and the sealing rings are linearly arrayed along the central axis of the mounting seat; the bottom of the sealing mechanism is fixedly connected with the top of the corrugated pipe, the mounting mechanism comprises a fixing hoop, the mounting mechanism is arranged, a rotary knob rotates on a double-end lead screw, so that the rotary knob is pressed on a limiting plate, and the fixing hoop is driven to move synchronously; and under continuous movement of the fixing hoop, the fixing hoop is hooped on the mounting seat, and then the mounting seat is mounted on the water heater, so that the purpose of conveniently splicing and mounting the combined water heater smoke tube is achieved.
Owner:DADIAN ENGINEERING EQUIPMENT (SHANGHAI) CO LTD

Assembled thermal insulation wall for green building

The utility model relates to the technical field of buildings, and discloses an assembled thermal insulation wall body for a green building, which solves the problems of poor thermal insulation effect and poor installation stability of the existing thermal insulation wall body, and comprises a thermal insulation wall body formed by sequentially splicing a plurality of thermal insulation wall board units, a plurality of reinforcing installation assemblies are arranged between the heat preservation wallboard units, a first top inserting convex edge and a second top inserting convex edge are arranged on the two sides of the top end of each heat preservation wallboard unit correspondingly, and a top inserting groove is formed between each first top inserting convex edge and the corresponding second top inserting convex edge. A bottom inserting convex edge matched with the top inserting groove is arranged in the middle of the bottom end of each heat preservation wallboard unit, and a first bottom inserting groove and a second bottom inserting groove matched with the first top inserting convex edge and the second top inserting convex edge are formed in the two sides of each bottom inserting convex edge correspondingly; by means of the split mounting type heat preservation wall, the heat preservation effect can be improved, meanwhile, installation convenience and stability are improved, and then using safety is improved.
Owner:ZHONGMEI ENGINEERING GROUP LTD +1

Combined butterfly valve

ActiveCN222315952UQuick splicing installationEasy maintenance and repairLift valveRotary valveButterfly valve
The utility model discloses a combined type butterfly valve, which relates to the technical field of combined type butterfly valves and comprises a pipeline, a butterfly valve rod is rotatably connected in the pipeline, a butterfly valve plate is fixed on the outer wall of the butterfly valve rod, a rotary valve rod is rotatably connected in an inner cavity of the butterfly valve plate, and the rotary valve rod is fixed on the pipeline. A rotary valve plate is arranged at the top end of the rotary valve rod and located in an inner cavity of the butterfly valve plate, and the limiting mechanism is arranged on the rotary valve rod and used for providing limiting for connection of the rotary valve plate and the rotary valve rod. Through the arrangement of the limiting mechanism, the butterfly valve plate and the rotary valve plate can be rapidly spliced and installed, the rotary valve plate and the butterfly valve plate can be separated, the rotary valve plate can be conveniently maintained and repaired, or the rotary valve plate can be conveniently replaced, and the metering speed can be adjusted. By means of the structure, the valve plate of the rotary valve can be replaced and installed conveniently, and the working efficiency is further improved.
Owner:TONGLING XINGDA VALVE GENERAL FACTORY

Splicing type goods shelf for logistics storage

ActiveCN222117804Uavoid displacementAvoid problems preventing displacementStorage devicesLogistics managementStructural engineering
The utility model relates to the technical field of logistics storage goods shelves, and discloses a splicing type goods shelf for logistics storage, which comprises side supports and placing plates, and the placing plates are detachably connected with the side supports; a partition is slidably connected to the top of the placement plate, limiting rods are slidably connected to the two sides of the inner wall of the partition in a penetrating mode, circular plates are fixedly mounted on the outer side walls of the limiting rods, springs are fixedly connected to the bottoms of the circular plates, and one ends of the springs are fixedly connected with the partition; a limiting groove is formed in the top of the placement plate in a penetrating mode, and the limiting rod and the limiting groove are connected in an inserted mode; through the arranged adjusting assembly, limiting rods, limiting grooves and springs, the adjusting assembly is rotated to drive the limiting rods to be separated from the limiting grooves in the containing plates, the adjusting assembly is loosened after the partition plates are moved to the proper positions, the springs reset, the limiting rods are clamped into the limiting grooves, and the partition plates are limited; therefore, the problem of displacement caused by mistakenly touching the partition plates by articles is avoided.
Owner:CHONGQING OUBISI LOGISTICS EQUIPMENT CO LTD

A mobile phone speaker shell capable of preventing deformation

The application discloses a mobile phone loudspeaker shell capable of preventing deformation, which comprises a shell body, a limiting hole is formed in the top end of the shell body, a fixed edge is arranged on the upper end of the shell body, a protective layer is connected to the inner side of the shell body, a closing cover is installed above the shell body, fastening bolts are installed on the left and right ends of the closing cover, a pressing mechanism is installed on the lower surface of the closing cover, an extrusion plate is arranged on the right side of the pressing mechanism, a sound hole is formed in the lower left of the shell body, and a bottom plate is bolt-connected to the bottom of the supporting frame. The mobile phone loudspeaker shell capable of preventing deformation can effectively improve the wear resistance and strength of the shell body by the wear-resistant layer made of ceramic material and the reinforcing layer internally provided with braided metal wires, and can prevent the shell body from being deformed in the long-term use.
Owner:GANZHOU KINGYUNG TECH CO LTD

Energy-saving fabricated building external wall heat insulation integrated device

The utility model provides an energy-saving assembly type building external wall thermal insulation integrated device, which relates to the technical field of assembly type buildings and comprises an external wall panel, a connecting piece I and a connecting piece II, a groove is formed in the rear end of the outer wallboard, three sets of round holes are formed in the left side and the right side of the outer wallboard respectively, a set of threaded bolts are clamped in the three sets of round holes in the left side and the right side of the outer wallboard respectively, a connecting plate is connected into the groove in the rear end of the outer wallboard, the heat preservation board is connected to the rear end of the connecting plate, and the inner wallboard is connected to the rear end of the heat preservation board. The square hole is formed in the connecting plate, and the eight sets of arc-shaped plates are connected into the square hole in the connecting plate, so that the eight sets of arc-shaped plates can form a plurality of air cavities in the square hole, the air cavities can play an extra heat insulation role, the heat preservation effect is improved, meanwhile, the weight of the heat preservation plate is reduced, and the construction difficulty is lowered; the problems that an existing energy-saving assembly type building outer wall heat preservation integrated device is prone to being influenced by the self weight in the construction process, and construction is not convenient are solved.
Owner:周添骄

Pneumatic plate not prone to discoloring

The pneumatic plate comprises a rectangular assembly plate, paillettes and side edge installation grooves, side edge clamping columns are fixedly installed at the right end of the rectangular assembly plate at equal intervals, side edge clamping grooves are formed in the inner ends of the side edge clamping columns, upper side clamping columns are fixedly installed at the upper end of the rectangular assembly plate at equal intervals, and side edge clamping grooves are formed in the inner ends of the side edge clamping columns. An upper side clamping groove is formed in the inner end of the upper side clamping column, and circular grooves are formed in the left end of the rectangular assembling plate at equal intervals. Supporting rods are installed at the inner ends of the paillettes in a clamped mode, limiting caps are fixedly installed at the front ends of the supporting rods, the rear ends of the paillettes are connected to the inner ends of the rectangular assembling plates in a threaded mode, and PET coating films are arranged at the outer ends of the paillettes. And color change and aging are avoided, the rectangular assembly plates can be conveniently and rapidly spliced and installed, and the rectangular assembly plates can be conveniently disassembled and assembled into areas of different sizes.
Owner:XIONGXIAN JIANXIU ARTS & CRAFTS MFG CO LTD

A quick-release modular dumbbell

ActiveCN224462185UEasy to removeQuick splicing installationDumbbellSuction force
The utility model relates to dumbbell technical field, and disclose a quick dismounting's modularization dumbbell, including dumbbell piece mechanism, still include: hold the lever mechanism, the dumbbell piece mechanism includes installation box, top cap, through groove, splicing post, splicing groove and fixed orifices, the hold lever mechanism includes hold lever main part, antiskid cover, spacing protruding, installation post, second installation hole, return spring and fixed pin, the utility model discloses through the through groove and splicing groove and make the side of installation box close in the side of antiskid cover and push fixed pin to make fixed pin insert fixed orifices inside to fix top cap when reset spring, and top cap compresses installation box to complete the fixing of dumbbell piece mechanism, realize the splicing installation of dumbbell piece mechanism and hold lever mechanism, when dismounting, through control switch control electromagnet power generation magnetic force to the iron sheet produce suction force to make the connecting rod drive fixed pin and enter second installation hole inside to realize dumbbell dismounting, be favorable to improving work efficiency.
Owner:NANTONG YOULI SPORTING GOODS