Hoisting clamp with protection function

Abstract

The utility model relates to the technical field of hoisting clamps, and discloses a hoisting clamp with a protection function, which comprises a sliding rail, connecting pieces are connected to two sides of the sliding rail in a sliding manner, a hoisting ring is connected between the bottoms of the two connecting pieces in a sliding manner, and a clamp is rotatably connected to the bottom of the hoisting ring. An oil storage box is fixedly connected between the tops of the two connecting frames, an oil pump box is fixedly connected to one side of the oil storage box, two reset springs are fixedly connected to the interior of the oil pump box, and a piston is fixedly connected between the bottoms of the two reset springs. According to the lubricating oil pump, the connecting piece drives the oil storage box to slide on the sliding rail through the connecting frame, the piston is jacked up through the push rod to compress the reset spring, the reset spring rebounds to push the piston back, so that the piston reciprocates up and down in the oil pump box, and lubricating oil in the oil storage box is pumped out through the oil outlet pipe; and the equipment is protected from being abraded and aged due to long-term use, the working efficiency is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting fixtures, in particular to a lifting fixture with a protection function. Background Technique

[0002] Lifting fixtures with protection functions are important tools for lifting operations. They are usually made of metal or other strong materials to fix and support the items being lifted to ensure the stability and safety of the items during the lifting process. There are many types of lifting fixtures, including but not limited to steel structure lifting fixtures, steel plate lifting fixtures, pipeline lifting fixtures, etc. Each fixture has its specific design and use. The structure of a lifting fixture with a protection function generally includes a clamping mechanism, a connecting mechanism, a mounting mechanism, and other auxiliary mechanisms.

[0003] Most of the lifting fixtures with protection functions are connected to movable sliding rails or gantry frames. In the prior art, most of the lifting fixtures with protection functions do not have an oil injection device for the sliding mechanism. When oil injection is required, it is necessary to climb onto the gantry frame manually or use other tools to perform the lubricating oil injection operation, which is time-consuming and laborious. Moreover, if lubricating oil injection is not carried out for a long time, the equipment will wear and age, reducing the operation efficiency and the practicality of the device. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a lifting fixture with a protection function, aiming to improve the problems of reduced operation efficiency and low practicality of the lifting fixture with a protection function in the prior art due to the lack of an oil injection device for the sliding mechanism.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A lifting fixture with a protection function includes a sliding rail. Both sides of the sliding rail are slidably connected with connecting pieces. A lifting ring is slidably connected between the bottoms of the two connecting pieces. A clamp is rotatably connected to the bottom of the lifting ring. Connecting frames are fixedly connected to the tops of the two connecting pieces. An oil storage box is fixedly connected between the tops of the two connecting frames. A gear is rotatably connected to the inner bottom end of the oil storage box. A connecting rod is fixedly connected to the middle of the gear. A cam is fixedly connected to the end of the connecting rod away from the gear. An oil pump box is fixedly connected to one side of the oil storage box. Two return springs are fixedly connected inside the oil pump box. A piston is fixedly connected between the bottoms of the two return springs. A push rod is fixedly connected to the bottom of the piston. A push block is fixedly connected to the bottom end of the push rod. An oil outlet pipe is fixedly connected to one side of the oil storage box. A one-way valve is fixedly connected to the middle of the oil outlet pipe. A guide pipe is fixedly connected to the side of the oil pump box away from the oil outlet pipe. A toothed plate is fixedly connected to the top end of the sliding rail. A connecting mechanism is arranged between the bottoms of the two connecting pieces. The connecting mechanism is provided to facilitate the disassembly and assembly of the lifting ring.

[0006] As a further description of the above technical solution:

[0007] The connecting mechanism includes an installation shell, the middle of the installation shell is fixedly connected inside the lifting ring, two limiting plates are slidably connected inside the installation shell, two pushing plates are slidably connected inside the installation shell, an extrusion spring is fixedly connected between the limiting plate and the pushing plate, a turntable is rotatably connected inside the installation shell, clamping blocks are fixedly connected to both ends of the turntable, and clamping rods are fixedly connected to the opposite sides of the two pushing plates.

[0008] As a further description of the above technical solution:

[0009] The piston is slidably connected inside the oil pump box, the push rod penetrates through the bottom end of the oil pump box, and the bottom end of the push block abuts against the cam.

[0010] As a further description of the above technical solution:

[0011] One end of the oil outlet pipe far from the oil storage box is fixedly connected to one side of the oil pump box.

[0012] As a further description of the above technical solution:

[0013] The bottom end of the guide oil pipe abuts against the slide rail.

[0014] As a further description of the above technical solution:

[0015] The gear meshes with the toothed plate.

[0016] As a further description of the above technical solution:

[0017] Shallow grooves are formed on the opposite sides of the pushing plate, and deep grooves are formed at positions relative to the shallow grooves on the opposite sides of the pushing plate.

[0018] As a further description of the above technical solution:

[0019] A handle is fixedly connected to the outside of the turntable, and an anti-slip sleeve is sleeved on the outside of the handle.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the present utility model, when the device is operating, the connecting piece drives the oil storage box to slide on the slide rail through the connecting frame. The toothed plate causes the gear to rotate, which drives the cam to rotate through the connecting rod and hit the push block back and forth. The piston is pushed up by the push rod to compress the return spring, and the return spring rebounds to push the piston back, causing the piston to make a reciprocating motion up and down in the oil pump box. The lubricating oil in the oil storage box is pumped out through the oil outlet pipe, and the lubricating oil is transported into the slide rail through the guide pipe for lubrication, achieving the effect of synchronously injecting lubricating oil during the hoisting operation, protecting the device from wear and aging due to long-term use, improving the operation efficiency, and enhancing the practicality of the device.

[0022] 2. In the present utility model, when it is necessary to remove the clamping, turn the handle to rotate the turntable, so that the clamping block slides from the shallow groove on the push plate into the deep groove. The compressed spring rebounds, and the push plates move closer to each other relatively, driving the clamping rods to move closer to each other relatively and slide out of the lifting ring, and then the clamping can be removed together with the lifting ring. When installing the clamping, turn the handle in the opposite direction to make the clamping block slide from the deep groove into the shallow groove, and the clamping rods can be pushed back into the space between the lifting rings through the push plate, achieving the effect of convenient disassembly and assembly of the fixture, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective view of a hoisting fixture with a protection function proposed by the present utility model;

[0024] Figure 2 is a sectional view of the oil injection mechanism of a hoisting fixture with a protection function proposed by the present utility model;

[0025] Figure 3 is a schematic diagram of the connection structure of a hoisting fixture with a protection function proposed by the present utility model;

[0026] Figure 4 is a sectional view of the installation shell of a hoisting fixture with a protection function proposed by the present utility model;

[0027] Figure 5 is a schematic diagram of the push plate of a hoisting fixture with a protection function proposed by the present utility model.

[0028] LEGEND DESCRIPTION:

[0029] 1. Slide rail; 2. Connecting piece; 3. Lifting ring; 4. Clamping; 5. Connecting frame; 6. Oil storage box; 7. Gear; 8. Connecting rod; 9. Cam; 10. Oil pump box; 11. Return spring; 12. Piston; 13. Push rod; 14. Push block; 15. Oil outlet pipe; 16. Check valve; 17. Guide pipe; 18. Toothed plate; 19. Installation shell; 20. Compression spring; 21. Limiting plate; 22. Push plate; 23. Clamping block; 24. Turntable; 25. Clamping rod; 26. Handle; 27. Shallow groove; 28. Deep groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, in combination with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Referring to Figure 1 - Figure 2 As shown in [figures not provided], an embodiment provided by the present invention is a lifting fixture with a protective function, including a slide rail 1 which functions as a slide. Both sides of the slide rail 1 are slidably connected with connecting members 2 which serve the purpose of connection and fixation. Between the bottoms of the two connecting members 2, there is a slidable connection with a lifting ring 3 which functions as a connection. The bottom of the lifting ring 3 is rotatably connected with a clamp 4 which functions to clamp an object. On the top of each of the two connecting members 2, there is a fixedly connected connecting frame 5 which serves the purpose of connection and fixation. Between the tops of the two connecting frames 5, there is a fixedly connected oil storage box 6 which functions to store lubricating oil. At the inner bottom end of the oil storage box 6, there is a rotatably connected gear 7 which functions as a transmission. In the middle of the gear 7, there is a fixedly connected connecting rod 8 which serves the purpose of connection. The end of the connecting rod 8 far from the gear 7 is fixedly connected with a cam 9 which functions as a transmission. On one side of the oil storage box 6, there is a fixedly connected oil pump box 10 which functions to pump oil. Inside the oil pump box 10, there are two fixedly connected return springs 11 which function to provide elastic force. Between the bottoms of the two return springs 11, there is a fixedly connected piston 12 which functions to pump oil. At the bottom of the piston 12, there is a fixedly connected push rod 13 which serves the purpose of connection. At the bottom end of the push rod 13, there is a fixedly connected push block 14 which functions as a transmission. On one side of the oil storage box 6, there is a fixedly connected oil outlet pipe 15 which functions to discharge oil. In the middle of the oil outlet pipe 15, there is a fixedly connected one-way valve 16 which functions to control the oil discharge. On the side of the oil pump box 10 far from the oil outlet pipe 15, there is a fixedly connected oil guide pipe 17 which functions to guide the lubricating oil. At the top end of the slide rail 1, there is a fixedly connected toothed plate 18 which functions as an engaging transmission. Between the bottoms of the two connecting members 2, there is a connection mechanism which is provided for the convenience of disassembling and assembling the lifting ring 3.

[0032] Referring to Figure 3 - Figure 5, The connecting mechanism includes an installation shell 19 which serves to fix the internal structure. The middle part of the installation shell 19 is fixedly connected inside the lifting ring 3. Two limiting plates 21 are slidably connected inside the installation shell 19, and the limiting plates 21 serve to prevent the internal structure from falling off. Two push plates 22 are slidably connected inside the installation shell 19, and the push plates 22 serve for sliding connection. An extrusion spring 20 is fixedly connected between the limiting plate 21 and the push plate 22, and the extrusion spring 20 serves to provide elastic force. A turntable 24 is rotatably connected inside the installation shell 19, and the turntable 24 serves to rotate. Both ends of the turntable 24 are fixedly connected with a clamping block 23, and the clamping block 23 serves for clamping and fixing. A clamping rod 25 is fixedly connected to the opposite sides of the two push plates 22, and the clamping rod 25 serves for fixing. The piston 12 is slidably connected inside the oil pump box 10. The push rod 13 penetrates through the bottom end of the oil pump box 10. The bottom end of the push block 14 abuts against the cam 9. One end of the oil outlet pipe 15 far away from the oil storage box 6 is fixedly connected to one side of the oil pump box 10. The bottom end of the guide pipe 17 abuts against the slide rail 1. The gear 7 meshes with the toothed plate 18. Shallow grooves 27 are formed on the opposite sides of the push plate 22, and deep grooves 28 are formed at positions relative to the shallow grooves 27 on the opposite sides of the push plate 22. A handle 26 is fixedly connected to the outside of the turntable 24, and an anti-slip sleeve is sleeved on the outside of the handle 26.

[0033] Working principle: When the equipment is running, the connecting piece 2 drives the oil storage box 6 to slide on the slide rail 1 through the connecting frame 5. The toothed plate 18 makes the gear 7 rotate, which drives the cam 9 to rotate through the connecting rod 8 and hit the push block 14 back and forth. The piston 12 is pushed up by the push rod 13 to compress the return spring 11. The return spring 11 rebounds to push the piston 12 back, so that the piston 12 makes a reciprocating up and down motion inside the oil pump box 10. The lubricating oil in the oil storage box 6 is pumped out through the oil outlet pipe 15, and the lubricating oil is transported into the slide rail 1 through the guide pipe 17 for lubrication.

[0034] When it is necessary to remove the clamp 4, turn the handle 26 to rotate the turntable 24, so that the clamping block 23 slides from the shallow groove 27 on the push plate 22 into the deep groove 28. Due to the rebound of the extrusion spring 20, the push plates 22 move closer to each other relatively, driving the clamping rods 25 to move closer to each other relatively and slide out of the lifting ring 3, and then the clamp 4 can be removed together with the lifting ring 3. When installing the clamp 4, turn the handle 26 in the opposite direction to make the clamping block 23 slide from the deep groove 28 into the shallow groove 27, and the clamping rods 25 can be pushed back between the lifting rings 3 through the push plates 22.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hoisting fixture with a protection function, comprising a slide rail (1), characterized in that: Both sides of the sliding rail (1) are slidably connected with connecting pieces (2). A hanging ring (3) is slidably connected between the bottoms of the two connecting pieces (2). A clamp (4) is rotatably connected to the bottom of the hanging ring (3). Connecting frames (5) are fixedly connected to the tops of the two connecting pieces (2). An oil storage box (6) is fixedly connected between the tops of the two connecting frames (5). A gear (7) is rotatably connected to the inner bottom end of the oil storage box (6). A connecting rod (8) is fixedly connected to the middle of the gear (7). A cam (9) is fixedly connected to the end of the connecting rod (8) away from the gear (7). An oil pump box (10) is fixedly connected to one side of the oil storage box (6). Two return springs (11) are fixedly connected inside the oil pump box (10). A piston (12) is fixedly connected between the bottoms of the two return springs (11). A push rod (13) is fixedly connected to the bottom of the piston (12). A push block (14) is fixedly connected to the bottom end of the push rod (13). An oil outlet pipe (15) is fixedly connected to one side of the oil storage box (6). A one-way valve (16) is fixedly connected to the middle of the oil outlet pipe (15). A guide oil pipe (17) is fixedly connected to the side of the oil pump box (10) away from the oil outlet pipe (15). A toothed plate (18) is fixedly connected to the top end of the sliding rail (1). A connecting mechanism is arranged between the bottoms of the two connecting pieces (2). The connecting mechanism is arranged to facilitate the disassembly and assembly of the hanging ring (3).

2. The hoisting clamp with a protection function according to claim 1, characterized in that: The connecting mechanism includes an installation shell (19). The middle of the installation shell (19) is fixedly connected inside the hanging ring (3). Two limiting plates (21) are slidably connected inside the installation shell (19). Two push plates (22) are slidably connected inside the installation shell (19). An extrusion spring (20) is fixedly connected between the limiting plate (21) and the push plate (22). A turntable (24) is rotatably connected inside the installation shell (19). Clamping blocks (23) are fixedly connected to both ends of the turntable (24). Clamping rods (25) are fixedly connected to the opposite sides of the two push plates (22).

3. The lifting fixture with a protection function according to claim 2, characterized in that: The piston (12) is slidably connected inside the oil pump box (10). The push rod (13) penetrates through the bottom end of the oil pump box (10). The bottom end of the push block (14) is abutted against the cam (9).

4. The lifting fixture with a protection function according to claim 3, characterized in that: One end of the oil outlet pipe (15) away from the oil storage box (6) is fixedly connected to one side of the oil pump box (10).

5. The hoisting clamp with a protection function according to claim 4, characterized in that: The bottom end of the guide oil pipe (17) is abutted against the sliding rail (1).

6. The hoisting fixture with a protection function according to claim 5, wherein: The gear (7) is meshed with the toothed plate (18).

7. The lifting fixture with a protection function according to claim 6, characterized in that: Shallow grooves (27) are formed on the opposite sides of the push plate (22). Deep grooves (28) are formed at positions of the opposite sides of the push plate (22) relative to the shallow grooves (27).

8. The lifting fixture with a protection function according to claim 7, characterized in that: A handle (26) is fixedly connected to the outside of the turntable (24). An anti-slip sleeve is sleeved on the outside of the handle (26).

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