57results about How to "Uniform and stable force" patented technology

A pushing chain for a villa elevator relates to the technical field of pushing chains and comprises a pushing chain body, the pushing chain body comprises a first chain plate and a second chain plate, limiting grooves are formed in the upper portions of the front ends of the first chain plate and the second chain plate, limiting blocks are arranged on the upper portions of the rear ends of the first chain plate and the second chain plate, and the limiting grooves are used in cooperation with the limiting blocks. First protrusions extending forwards are arranged at the bottoms of the front ends of the first chain plate and the second chain plate, first connecting holes are formed in the first protrusions, second protrusions are arranged at the rear ends, where the inner sides of the lower portions of the limiting blocks are located, of the first chain plate or the second chain plate, and second connecting holes are formed in the second protrusions. The second protrusions are bent and translated towards the outer side relative to the first chain plates or the second chain plates, the translating distance is the same as the thickness of the first protrusions, and the second protrusions of the first chain plates and the second chain plates are opposite in direction relative to the first protrusions. The device is used for being installed on the side face of the villa elevator car and has the advantages of being simple in structure, small in occupied space, high in speed, large in load, low in maintenance cost, safe and reliable.

The invention relates to an outer sliding panoramic sunroof driving structure, the outer sliding panoramic sunroof driving structure comprises a front upwarp assembly, a rear upwarp assembly, a driving block, a mechanical arm and a flexible shaft hooking assembly.The front upwarp assembly and the rear upwarp assembly are arranged in sliding grooves corresponding to the driving block and are arranged in sliding rails at the same time, so that the mechanical arm is driven by the mechanical arm, and the flexible shaft hooking assembly is driven by the mechanical arm; the front upwarp assembly and the rear upwarp assembly are supported in a double-supporting mode, matched parts are evenly stressed, the impact strength of a mechanical set in the actuation process can be better absorbed, and the strength can well meet the use requirement. The front upwarp assembly and the rear upwarp assembly are hinged to the mechanical arm, the driving block, the front upwarp assembly, the rear upwarp assembly and the mechanical arm form a quadrilateral movement mechanism, and meanwhile, the quadrilateral movement mechanism is matched with the double-supporting structure, so that the two sides of the whole driving structure are evenly and stably stressed, and the situation that local stress is too large, friction resistance is increased, and other functions are affected is avoided; the stable action force can meet the requirement for repeated reciprocating action of opening and closing of the skylight.

The invention relates to the technical field of stretch wrapping films, in particular to a preparation process of an environment-friendly PE stretch wrapping film which comprises the following components: polyethylene glycol terephthalate, linear low-density polyethylene, bio-based polyethylene, starch-based plastic, nanocellulose, plant polyphenol, a tackifier, an anti-ultraviolet agent and an antistatic agent. By adopting a bio-based material and a degradable material, high performance is realized, and meanwhile, the environment-friendly requirement is also met. Due to material selection, carbon emission in the production process is reduced, and the wrapping film can be degraded by the natural environment more easily after being used.

The paper cushion packaging structure for the refrigerator comprises a top cover, the top cover comprises a first sand pipe paper frame and a first honeycomb paperboard, the four corners of the first honeycomb paperboard are provided with reserved hole positions and bonded in the first sand pipe paper frame, and the first sand pipe paper frame is formed by folding and enclosing a sand pipe paper corner protector after slotting and stamping; the bottom support comprises a second sand pipe paper frame, a second honeycomb paperboard, a third honeycomb paperboard and a filling paperboard, reserved groove positions are formed in the four corners of the second honeycomb paperboard, the second honeycomb paperboard is bonded in the second sand pipe paper frame, and the second sand pipe paper frame and the first sand pipe paper frame are the same in structure; the third honeycomb paperboard and the filling paperboard are bonded on the second honeycomb paperboard to support the bottom of the refrigerator; the supporting paper angle beads are provided with a plurality of reserved hole positions which penetrate through the first honeycomb paperboard and reserved groove positions which penetrate through the second honeycomb paperboard respectively. All parts of the device are simple and ingenious in structural design, the assembly mode is simple, and workers can operate the device easily.

The invention relates to the technical field of feeding equipment, and particularly discloses a clamping mechanism, an automatic feeding device and an automatic feeding method.The clamping mechanism comprises a lifting module, a transferring module and a clamping module, and the lifting module comprises a lifting platform and a lifting driving part which are in transmission connection; the transferring module comprises a transferring driving part and a transferring support which are in transmission connection, the transferring support is arranged on the lifting platform in a sliding mode, the clamping module is arranged on the transferring support and comprises a positioning part and a plurality of clamping parts, the clamping parts are arranged on the two sides of the positioning part respectively, the positioning part can be used for abutting and positioning a to-be-clamped part, and the clamping parts can be used for clamping the to-be-clamped part. The clamping piece can clamp the piece to be clamped, manual taking and placing operation is avoided, and the production efficiency is improved. And the positioning piece can position the clamping position of the to-be-clamped piece by the clamping piece, so that the to-be-clamped piece can be accurately clamped and conveyed by the clamping piece, and the conveying error is reduced. The clamping module exerts uniform and stable force on the to-be-clamped piece, and the relative displacement of the clamping module and the to-be-clamped piece is reduced.

The pot cover assembly comprises a lining cover, a top face cover located above the lining cover and a side face cover surrounding the periphery of the lining cover, the top face cover and the lining cover are of an integrally-formed structure, a fixing buckle is arranged on the inner circumferential face of the side face cover, a matched buckle matched with the fixing buckle is arranged on the circumferential side of the lining cover, and the side face of the lining cover is provided with a matched buckle matched with the matched buckle. And the side cover is clamped and fixed on the lining cover. According to the pot cover assembly, the top surface cover and the lining cover are integrally formed, so that the lining cover and the top surface cover can be processed at the same time through one-time processing, use of a pair of molds is reduced, the step of follow-up assembly of the top surface cover and the lining cover is omitted, meanwhile, the number of parts is reduced, the overall processing and manufacturing difficulty of the pot cover assembly is greatly reduced, and the manufacturing cost is saved. The side cover is fixedly clamped with the lining cover and is not connected with the top surface cover, so that a complicated fixing structure does not need to be arranged on the top surface cover, the smoothness of the top surface cover is improved, and the probability that flow marks appear on the top surface cover in the injection molding process can be further reduced.

The utility model discloses an internal thread connecting device for a glass fiber reinforcing steel bar, which comprises a steel internal thread reducing screw head and a steel double-sided thread screw head, and the internal thread connecting device for the glass fiber reinforcing steel bar is a reducing steel internal processing thread connecting screw head. The reinforcing steel bar connecting device can be widely applied to tunnel shield construction sites, reinforcing steel bars made of the same material or different materials can be connected through the connecting device, so that the connecting operation is more simplified, the reinforcing steel bars are stressed more uniformly and stably, joints are prevented from being damaged in the hoisting and hoisting processes after the glass fiber reinforcing steel bars are connected with traditional reinforcing steel bars, and meanwhile, the service life of the reinforcing steel bars is prolonged. According to the steel bar connector, steel bars of different specifications and different materials can be connected at will, through stress can be achieved after connection, the tightness of the connector can be well guaranteed, the connection strength can be guaranteed through screw thread connection, the construction connection process is simplified, the construction difficulty is reduced, the workload of constructors is relieved, and the working efficiency is improved.

This utility model discloses a blade clamping assembly, belonging to the technical field of trademark and label processing for packaging. The blade clamping assembly includes a blade, a bearing seat, a blade shaft connected within the bearing seat, a clamp fixing seat embedded in the blade shaft surface, and a reference groove extending outward from the clamp fixing seat. The blade is detachably fixed in the reference groove by an airbag clamp. The airbag clamp applies force to the entire bearing surface of the blade, and the airbag volume can be adjusted by increasing or decreasing pressure. It is compact during installation, pressurizes after installation, and depressurizes during disassembly, achieving the technical effect of making the blade easier to disassemble and replace. This solves the problem in existing technologies where the blade clamping structure is large and the blade itself is small, resulting in inconvenient installation and maintenance.

A portable wave-shaped guardrail installation device comprises a limiting mechanism, the limiting mechanism comprises a set of frames, a set of wave-shaped limiting baffles are installed between the two frames, the set of frames and the wave-shaped limiting baffles are combined to form a guardrail limiting area, one end of the limiting mechanism and a connecting mechanism are installed and fixed together, and the other end of the limiting mechanism is connected with the connecting mechanism. The other end of the connecting mechanism and the hydraulic mechanism are fixedly mounted together; according to the device, the wave-shaped guardrail is positioned through the arrangement of the V-shaped frame and the wave-shaped limiting baffles, up-down and left-right movement of the wave-shaped guardrail is effectively prevented, meanwhile, the wave-shaped limiting baffles are made of rubber materials, damage to the guardrail caused by hard contact with the guardrail is avoided, meanwhile, the device is attached to the guardrail more tightly, and the service life of the guardrail is prolonged. Slippage and rebounding caused by hard action between the guardrail and the device are avoided; long waist-shaped grooves are formed in the two sides of the connecting block, so that the limiting mechanism can be adjusted according to the mounting height of the wave-shaped guardrail; the device overcomes the defects in the prior art, mechanical installation of the wave-shaped guardrail is achieved, and the device is convenient to carry.

The utility model relates to the field of ceiling fan installation accessories, in particular to a fast-assembly mechanism applied to a ceiling fan and used for fixing an upper cup, the ceiling fan comprises a ceiling fan body, a hanging rod and the upper cup, the fast-assembly mechanism is arranged on the hanging rod and can be adjusted up and down in the length direction of the hanging rod, and the fast-assembly mechanism comprises an installation sleeve assembly and a locking assembly. And the two are connected and matched to lock the whole quick-mounting mechanism and the upper cup on the hanging rod. The upper cup is fixed to the preset position of the hanging rod through the quick mounting mechanism, the problems that in the prior art, the upper cup and the external thread column are integrally formed, molds of different types of upper cups matched with the external thread column need to be produced, and the stock burden of accessories is increased are solved, the quick mounting mechanism can be independently manufactured and then matched with the different upper cups to meet the mounting requirement, and the mounting efficiency is improved. The overall manufacturing cost of the ceiling fan is reduced, good universality is achieved, and the quick mounting mechanism further has the advantages of being convenient to mount and operate and reliable in structure.

The utility model belongs to turbine maintenance device technical field relates to a special frock of slider dismounting, including base, the base top one end is provided with the baffle that is perpendicular, baffle back is provided with the reinforcing rib, the base top center is provided with the slot, the slot is located baffle front side, the slot is placed with hydraulic drive device, the base top is located the front side center of slot and is provided with the support station, the support station is fixed with the sleeve, the sleeve is inserted with bolt, the front end of bolt and the jacking end contact of hydraulic drive device, the base top other end is provided with the top block, and the front side of top block is used for placing the cylinder slider of dismounting. The utility model dismounts the cylinder slider fast and accurately, greatly shortens the maintenance time, in the dismounting process, the force is even and stable, can effectively avoid the damage to the cylinder slider and turbine other parts.

The utility model discloses a porous flexible protective sleeve which comprises two semi-circular pipe bodies, the two semi-circular pipe bodies are detachably installed, and the two semi-circular pipe bodies are combined to form a hollow protective pipe body. Two arc-shaped grooves are formed in the inner wall of the semicircular pipe body, and a protruding part is arranged between the two arc-shaped grooves. The protruding part is combined with the inner wall so that the internal cable can be limited. The cable protection sleeve has the technical effects and advantages that a plurality of cables can be simultaneously protected, the plurality of cables are tightly attached to the inner wall of the protection sleeve at the same time, stress is balanced and stable after external binding, impact force can be dispersed, and normal operation of the cables can be comprehensively protected.

The utility model discloses a kind of whole profile core rod quick-change adjusting mechanism in powder metallurgy field, including core rod support plate and core rod connecting rod, vertical through-hole is set on core rod support plate, the lower portion of core rod connecting rod is equipped with threaded section, threaded section of core rod connecting rod is set through through-hole axially, threaded section of core rod connecting rod is successively respectively equipped with upper nut, shaft sleeve and lower nut from top to bottom, lower nut is pressed to the downside of core rod support plate, shaft sleeve is filled with between core rod connecting rod threaded section and through-hole inner wall correspondingly, shaft sleeve upper end is equipped with the outer step of supporting on the upper surface of core rod support plate, upper nut is pressed to shaft sleeve upper end face, the outer diameter of upper nut, lower nut is all less than through-hole inner diameter. The utility model can satisfy the demand of quick loading and taking, realize that core rod connecting rod is quickly taken out from pit, while ensure that each nut is not loose when core rod connecting rod is stressed, axial positioning is stable and reliable.

The utility model discloses a circuit breaker protective cover installation structure, which comprises an upper cover arranged on a middle seat, an installation groove and a protective cover, and is characterized in that a first connecting part and a second connecting part are arranged at the opening end of the protective cover, and a first connecting groove and a second connecting groove are correspondingly arranged on the side edge of the upper cover; when the protective cover is closed in the mounting groove, the first connecting part and the second connecting part are driven to be inserted into the first connecting groove and the second connecting groove correspondingly, and then the first connecting part and the second connecting part are fixed into the first connecting groove and the second connecting groove through the first fastening structure and the second fastening structure correspondingly. The protective cover is guaranteed to be in a closed state and not to be opened at will, the installation structural strength of the protective cover is enhanced, the impact resistance is better, the protective cover can well cope with the impact effect borne by a breaker breaking test, and the situation that the protective cover violently shakes and even is opened by impact due to the impact effect is avoided; the mounting stability of the protective cover is improved.

This utility model discloses an easily adjustable pressing device for a sander, relating to the field of sander technology. The easily adjustable pressing device for a sander includes a base plate, with a conveying mechanism and a pressing mechanism disposed above the base plate. The conveying mechanism includes a conveying section and a limiting section. The conveying section includes two conveying rollers and a conical block, and the limiting section includes two sets of limiting frames and two sets of limiting rollers. The technical advantage is that the conveying mechanism provides stable sliding guidance for the limiting frames through the cooperation of the conical block, wedge groove, and wedge block. Combined with the elastic force of the compression spring and damper, the limiting rollers can automatically adjust their spacing according to changes in workpiece width and always closely fit the side of the workpiece, achieving adaptive adjustment without manual operation. This significantly improves adaptability to workpieces of different widths and reduces changeover adjustment time. Simultaneously, the heating plate inside the conical block can complete preheating treatment during workpiece conveying.

This utility model discloses a hydraulic precast component turning frame, applied in the field of building construction technology. It includes a base A, with a slot on the right side of the base A. A movable plate is slidably fitted inside the slot, and a base B is bolted to the right side of the movable plate. Limiting holes are provided on the right side of the front and rear ends of the movable plate. This utility model, through its overall elongated mechanical design, flexibly adapts to precast components of different heights, significantly improving the equipment's versatility. Its telescopic structure eliminates the need for component replacement, simplifying the operation process while ensuring stable force distribution. It can adapt to diverse engineering needs and ensure the stability and safety of the component turning process, effectively improving construction efficiency and reducing operational risks. The clamping design on both sides of the precast component can accurately lock the component's position, ensuring uniform and stable force distribution during the turning process. The symmetrical clamping on both sides effectively avoids the risk of component displacement or slippage, reducing the potential deformation hazards caused by uneven force distribution on one side.

The present invention discloses a copper busbar heat shrink tube cutting machine, which belongs to the copper busbar processing technology field, and comprises an operating table, wherein the upper wall of the operating table is provided with a waste slot hole and an installation slot hole, wherein the installation slot hole is connected and arranged on one side of the waste slot hole, wherein a side-adjacent clamping mechanism is arranged in the installation slot hole, wherein a side-adjacent clamping mechanism close to the waste slot hole is connected with a variable track fixing frame, wherein a side wall of the waste slot hole close to the installation slot hole is provided with an annular non-destructive depth-fixing cutting device, wherein the variable track fixing frame is arranged between the side-adjacent clamping mechanism and the annular non-destructive depth-fixing cutting device, wherein a straight-line laser is arranged on the annular non-destructive depth-fixing cutting device. The present invention provides a copper busbar heat shrink tube cutting machine, which can perform side-adjacent cutting on copper busbars of different sizes, ensure that the cutter applies uniform and stable force to the copper busbar, and avoid damage to the copper busbar to the greatest extent while ensuring thorough segmentation of the heat shrink tube.

The invention discloses a hot melt adhesive scratch-free coating die head and belongs to the technical field of coating equipment, a runner is arranged at the top end of a lower die, the lower die comprises a main body, an opening block, an adjusting part and a plurality of adjusting mechanisms, the adjusting part is composed of a first connecting block, a first connecting plate and a second connecting block which are sequentially connected, the first connecting block is connected with the lower die main body, and the second connecting block is connected with the second connecting plate. The second connecting block is detachably connected with the lower die orifice block, and the adjusting mechanism can drive the adjusting part to be bent at the first connecting plate. And the two fixing seats are fixedly connected with the lower die, and the lower die is positioned between the two fixing seats. The upper die is arranged above the lower die and connected with the fixed seat through a rotating shaft, the upper die is provided with a feed port, and the bottom end of the upper die is communicated with the runner during die assembly. And the coating roller is arranged at the discharge hole, is separated from the lower die orifice block to form the discharge hole, and is driven to rotate by a driving device fixedly connected with the lower die. Through the arrangement of the adjusting part and the adjusting mechanism, the adjusting part can be driven to be bent, the lower die orifice block is driven to move relative to the lower die main body, and then accurate adjustment of the size of the die orifice is achieved so as to meet various coating requirements.

The utility model relates to a dismounting tool for a water level gauge electrode, the dismounting tool is used for dismounting a water level gauge inserted in a mounting cylinder, a measuring cylinder is arranged at the side part of the mounting cylinder, the water level gauge comprises an electrode tube and a sealing tube, the sealing tube is sleeved on the electrode tube, and the sealing tube is arranged on the mounting cylinder. The sealing pipe is inserted into the measuring cylinder and is connected with the measuring cylinder; the dismounting tool comprises a driving part and a clamping part, the driving part is used for being in threaded connection with the electrode tube, and the clamping part is used for clamping the electrode tube so as to limit rotation of the electrode tube. According to the dismounting tool for the water level gauge electrode, the problem that the water level gauge electrode is prone to being locked and broken in the dismounting process can be solved.

The utility model relates to the technical field of fabricated buildings, in particular to an external wall panel stripping and hoisting tool which comprises a truss beam and a hoisting beam, the truss beam comprises an upper main beam and two lower main beams, the two lower main beams are arranged in parallel, the upper main beam is arranged above the lower main beams, the upper main beam is arranged at the central position between the two lower main beams, and the hoisting beam is arranged above the upper main beam. A truss beam lifting lug is arranged at the top of the upper main beam, fixing seats are correspondingly arranged on the outer sides of the two lower main beams respectively, the hoisting beam comprises a hoisting main beam, the hoisting main beam is fixedly connected to the fixing seats, and more than two hoisting beam lifting lugs are arranged at the bottom of the hoisting main beam. The external wall panel stripping and hoisting tool can meet the hoisting requirements of different large external wall panels, the applicability of the hoisting tool in assembly type civil buildings and assembly type industrial buildings is improved, and application and popularization of steel structure and concrete prefabricated part building systems can be accelerated.

The utility model discloses a buffer type walking positioner assembly which comprises a positioner, a walking base and a driving part, the driving part is arranged on the walking base, the positioner is installed on the driving part, the driving part drives the positioner to move back and forth on the walking base, the driving part comprises a bottom plate, and a motor driving assembly is arranged on the bottom plate. Buffering assemblies are arranged on the left side and the right side of the bottom plate in the front-back direction correspondingly and comprise fixing plates, the fixing plates are connected with the side face of the bottom plate, connecting rods are arranged on the fixing plates in the front-back direction in a penetrating mode, the inner sides of the connecting rods are sleeved with adjusting blocks, the outer sides of the connecting rods are sleeved with dampers, and the two ends of the connecting rods are provided with stopping parts. The four corners of the lower end of the position changing machine are correspondingly clamped into the connecting rods between the adjusting blocks and the fixing plates respectively. According to the buffering type walking positioner assembly, structural deformation caused by axis deviation accumulation and rigidity deviation can be avoided, and meanwhile it is guaranteed that the stability is influenced by vibration and impact.

The utility model relates to welding frock technical field discloses a kind of fixing device for automobile exhaust pipe welding, including bottom plate, T type fixed seat is equipped on the bottom plate, T type placing groove is equipped on the T type fixed seat, and the inside chamfer of T type placing groove is arc shape;One side of the T type placing groove is equipped with fixed plate, and stopper is equipped on the fixed plate, the other side of the T type placing groove is equipped with support table, and the fixed plate can be connected with the bottom plate fixedly;Support table is equipped with transverse elbow clamp on, and the telescopic end of transverse elbow clamp is equipped with moving clamping plate, the inside chamfer of T type placing groove is arc shape, can better fixed exhaust pipe, reduce the movement in welding process, to improve welding accuracy.Fixed plate and support table are connected with the bottom plate fixedly, increase the stability of device, ensure the stability of exhaust pipe position in welding process.

This application provides a linked giant screen installation structure, relating to the field of screen splicing technology. It includes a fixed frame with lifting devices at both ends, a lifting plate between the two lifting devices, two insertion boxes fixedly mounted on the rear end of the lifting plate, a screen panel mounted on the front end of the lifting plate, and two insertion rods fixedly mounted on the rear end of the screen panel. The rear end of each insertion rod is installed in a corresponding insertion box. A positioning plate is fixedly mounted on the rear end of the lifting plate, positioned between the two insertion boxes. Auxiliary springs are fixedly mounted on both ends of the positioning plate, and a moving rod penetrating the insertion box is fixedly mounted on the other end of each auxiliary spring. Each moving rod has a limiting groove. This device automatically completes the snap-fit ​​fixing using the elastic force of the auxiliary springs, is simple to operate, and has a fast installation speed. Furthermore, pressing the two moving rods towards each other releases the snap-fit ​​limit, allowing for quick disassembly of the screen panel.

The utility model relates to a water fender which comprises a water fender main body and a frame body, the frame body comprises a first supporting part and a second supporting part, the first supporting part abuts against the two side edges of the water fender main body, and the first supporting part is further connected with the top of the water fender main body; the second supporting part is hinged to the first supporting part, and an included angle is formed between the second supporting part and the first supporting part. According to the water fender, the edge and the top of the water fender are supported through the first supporting part of the frame body, then a stable supporting structure is formed by adjusting the angle between the first supporting part and the second supporting part, and therefore the whole water fender is even and stable in stress, and compared with an existing water fender structure which is only provided with a single supporting arm for supporting the water fender, the water fender is more stable in structure. The water fender is more practical, and belongs to the technical field of hydraulic engineering equipment.

The utility model relates to the field of hydrogen energy gas turbines, in particular to a thin-wall casing clamping mechanism of a hydrogen energy gas turbine, which comprises a chassis, a plurality of double-head clamping jaws are arranged on the outer side of the chassis through mounting columns, one end of each double-head clamping jaw is connected with a rotating handle through an adjusting screw rod, and a plurality of inner positioning plates are arranged in the middle of the chassis. An inner clamping jaw mechanism is arranged on the outer side of each inner positioning disc. According to the clamping device, through the arrangement of the mounting column, the double-end clamping jaw, the inner positioning disc, the inner clamping jaw mechanism and other assemblies, when the thin-wall casing body is clamped, the upper portion and the bottom of the thin-wall casing body can be effectively, stably and evenly clamped, the adjusting process is convenient and fast, force application is even, the clamping and fixing strength and stability are effectively improved, and the clamping effect is good. And the machining difficulty is reduced, the case body is prevented from being damaged, and the machining precision and the technical condition requirements are guaranteed.

The utility model relates to the technical field of bridge pile foundation reinforcing, and provides a bridge pile foundation reinforcing structure which comprises a plurality of first reinforcing pieces, first connecting plates are fixedly installed on the two sides of the first reinforcing pieces, and the first connecting plates are divided into a plurality of groups in pairs. First connecting plates are fixedly installed on the outer sides of the first reinforcing pieces, first bolts are in threaded connection with the interiors of the first connecting plates, first supporting columns are fixedly installed on the outer sides of the first reinforcing pieces, and second supporting columns are movably arranged on the outer surfaces of the first supporting columns in a sleeved mode. The height of the reinforcing part is flexibly adjusted, the reinforcing part can adapt to bridge pile foundations with different heights, applicability and universality are improved, meanwhile, additional supporting force and fixing force can be provided through outward expansion of the supporting feet and embedding of the ground nails, the connection stability between the reinforcing support and the bridge pile foundations is enhanced, and the service life of the reinforcing part is prolonged. And the overall structural stability can be improved.

The utility model relates to a lifting hook for lifting a water-collecting well frame template and a water-collecting well frame template assembly, the lifting hook for lifting the water-collecting well frame template comprises a lifting hook body, a connecting steel bar and a locking piece, one end of the lifting hook body is bent to form a limiting hook body, the other end of the lifting hook body is bent to form a lifting hook body, and the locking piece is connected with the lifting hook body. The limiting hook body is detachably connected with a locking piece, the hoisting hook body is connected with a connecting steel bar, and the connecting steel bar and the hoisting hook body are encircled to form a closed hoisting ring; the limiting hook body and the lifting hook body are respectively positioned on two opposite sides of the lifting hook body. The on-site manufactured lifting hook for conveniently lifting the water-collecting well frame template has good safety, durability, stability and convenience, can be repeatedly used, greatly reduces safety accidents, and reduces accidents.

The utility model relates to the technical field of water pump bearing assembly, and discloses a water pump bearing automatic installation device which comprises a rotating disc, pump cover fixing seats, a horizontal moving structure, a vertical moving structure and a pressing mechanism. The horizontal moving structure is arranged beside the rotating disc, the vertical moving structure is installed at the driving end of the horizontal moving structure, and the horizontal moving structure is used for driving the vertical moving structure to move horizontally; and the pressing mechanism is also arranged beside the rotating disc and comprises a press machine, a pressing head, press machine supporting frames, a supporting frame top plate, a supporting frame rear side plate and a supporting frame bottom plate, and the bottoms of the two press machine supporting frames are connected through the supporting frame bottom plate. Automatic clamping and press-fitting operation of a pump cover bearing can be achieved, the production efficiency of a water pump is improved, the bearing mounting quality is guaranteed, and the bearing and a pump cover are prevented from being extruded and damaged.