Protective cover for power tongs

By combining a detachable protective cover device and an air cushion protective device for power clamps, multi-specification adaptability and impact protection for power clamps and clamped objects are achieved, solving the practicality and safety problems of existing power clamp protective devices, and improving operational safety and service life.

CN224214133UActive Publication Date: 2026-05-08JIANHU HENGTAI PETROLEUM MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANHU HENGTAI PETROLEUM MACHINERY CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing power clamps lack effective protection when gripping objects, which may lead to damage to objects and injury to operators, and existing protective devices are not very practical.

Method used

A protective cover for power clamps was designed. By combining a detachable protective cover device and an air cushion protective device, the protective plate is tightly fitted using threaded posts and locking nuts. Combined with the air cushion protective device, it provides cushioning protection during impact.

Benefits of technology

It improves the safety and service life of the power clamp and the objects it holds, enhances the practicality and applicability of the device, and ensures the convenience and reliability of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective cover for power tongs, and relates to the technical field of protection. The device comprises a main machine and a hanging plate, the top of the main machine is fixedly connected with the bottom of the hanging plate, a back clamp is arranged on the side face of the main machine, a main clamp is arranged on the side face of the main machine, and a detachable protective cover device is arranged on the side face of the main clamp. When the power tongs are used for clamping an object, the object can be placed between the back clamp and the main clamp firstly, and then the protection plate is attached to the outer surfaces of the power tongs and the object by adjusting the positions of the protection plate on the first threaded column and the second threaded column. Subsequently, by rotating the first locking nut and the second locking nut, the protection plate is fixed to the power tongs, protection of the power tongs and objects is achieved, the safety of the device is improved, the service life of the device is prolonged, and the technical problem that in the related technology / prior art, an ultraviolet spectrophotometer is prone to being damaged in the clamping process or operators are prone to being injured is solved.
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Description

Technical Field

[0001] This utility model belongs to the field of protection technology, and in particular relates to a protective cover for a power clamp. Background Technology

[0002] In existing technologies, power clamps often lack effective protection for both the clamp and the object when gripping it. This may not only cause damage to the object during the gripping process, but may also cause injury to the operator.

[0003] According to a public disclosure (publication number: CN210127840U), a protective cover for a power clamp includes a connecting block, a guide tube, and an arc-shaped plate. Two connecting blocks are provided, used to fix and connect to the side wall of the bottom frame of the power clamp. Two guide tubes are provided, fixedly connected to the connecting blocks, and vertically arranged. Guide grooves are provided along the length of the guide tube walls. The arc-shaped plate consists of an arc-shaped plate portion and two sliding limiting portions, respectively located on both sides of the upper end of the arc-shaped plate portion. The outer ends of the two sliding limiting portions are located in one guide tube, and the sliding limiting portions can slide freely along the guide grooves. This utility model can block the worker's feet, preventing them from being directly under the power clamp. Even if the power clamp falls directly due to an accident, it will not press on the worker's feet, thus preventing injury.

[0004] In the aforementioned application, the curved plate blocks the worker's feet, which can prevent injury to the worker when the power clamp falls directly. However, the objects it can clamp are very diverse, resulting in limited practicality and a relatively simple effect. Therefore, we propose a protective cover for power clamps. Utility Model Content

[0005] The purpose of this invention is to provide a protective cover for a power clamp. When using the power clamp to hold an object, the object can be placed between the back clamp and the main clamp. Then, by adjusting the position of the protective plate on the threaded post one and threaded post two, the protective plate is made to fit against the outer surface of the power clamp and the object. Subsequently, by rotating the locking nut one and locking nut two, the protective plate is fixed to the power clamp, thus protecting the power clamp and the object, improving the safety and service life of the device, and solving existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a protective cover for a power clamp, including a main unit and a hanging plate. The top of the main unit is fixedly connected to the bottom of the hanging plate. A back clamp is provided on the side of the main unit, a main clamp is provided on the side of the main unit, and a detachable protective cover device is provided on the side of the main clamp.

[0008] The detachable protective cover device includes a clamping plate 1, which is fixedly connected to the circumferential surface of the main clamp. A rotating plate 1 is clamped to the inner side of the clamping plate 1. A connecting post 1 is hinged to the side of the rotating plate 1. A protective plate is fixedly connected to the side of the connecting post 1. A connecting post 2 is fixedly connected to the inner circumferential surface of the protective plate. A rotating plate 2 is hinged to the inner side of the connecting post 2. A clamping plate 2 is clamped to the side of the rotating plate 2. A threaded post 1 is fixedly connected to the circumferential surface of the main clamp. A locking nut 1 is threadedly connected to the circumferential surface of the threaded post 1. A threaded post 2 is fixedly connected to the circumferential surface of the back clamp. A locking nut 2 is threadedly connected to the circumferential surface of the threaded post 2.

[0009] Furthermore, the side of the second clamping plate is fixedly connected to the circumferential surface of the back clamp, and the side cross-section of the protective plate is set to be arc-shaped, which can better fit the shape of the power clamp and improve the protective effect.

[0010] Furthermore, the circumferential surface of the first threaded post penetrates and slides through the circumferential surface of the protective plate, and the circumferential surface of the second threaded post penetrates and slides through the circumferential surface of the protective plate. This allows the protective plate to slide up and down according to the size of the power pliers, thereby adapting to different specifications of power pliers and improving the practicality and applicability of the device.

[0011] Furthermore, the protective plate, locking nut one, threaded post two, connecting post two, and rotating plate one are provided in two quantities and are symmetrically distributed along the vertical central axis of the back clamp. Their function is to make the device more stable during protection and improve the protection effect.

[0012] Furthermore, the top of the back clamp is provided with an air cushion protection device, which includes a top post fixedly connected to the top of the back clamp. A protective pad is fixedly connected to the end of the top post away from the back clamp. An air supply pipe is fixedly connected through and to the side of the protective pad. A pressure-bearing airbag is fixedly connected to the end of the air supply pipe away from the protective pad. A mounting post is fixedly connected to the bottom of the pressure-bearing airbag. A pressure post is fixedly connected to the inner circumferential surface of the protective plate. Its function is to make the protective pad expand rapidly, to buffer and protect the object held by the power clamp, to prevent damage due to impact, and to improve the safety and service life of the device.

[0013] Furthermore, the end of the mounting post furthest from the pressure-bearing airbag is fixedly connected to the top of the back clamp, and the side cross-section of the protective pad is set to be arc-shaped, which can better fit the object held by the power clamp and improve the buffer protection effect.

[0014] Furthermore, the side of the pressure-bearing airbag is located on the displacement trajectory of the inner circumferential surface of the pressure column away from the protective plate. There are two pressure-bearing airbags and two protective plates, which are symmetrically distributed along the vertical central axis of the back clamp. Their function is to ensure that when the device is impacted, the pressure-bearing airbag can be evenly stressed and quickly inflated to the protective pad through the air supply pipe, thereby improving the uniformity and stability of the buffer protection.

[0015] This utility model has the following beneficial effects:

[0016] This invention utilizes the interoperability of components such as the first clamping plate, the first rotating plate, and the first connecting plate in the detachable protective cover device to achieve rapid installation and disassembly of the protective cover. This allows users to easily assemble or disassemble it according to actual needs, greatly improving ease of use. Simultaneously, the inclusion of threaded post one, locking nut one, threaded post two, and locking nut two allows users to easily adjust the position of the protective plate, ensuring a tight fit between the protective cover and power pliers of different sizes, effectively preventing poor protective performance due to size mismatch.

[0017] This invention utilizes the coordinated operation of components such as the top column, protective pad, and air supply pipe in the air cushion protection device. When the power clamp is impacted, the protective pad responds rapidly, and the inflation of the compressed airbag effectively cushions and protects the object held by the clamp. This design not only improves the safety performance of the device but also effectively extends the service life of the power clamp and the object it holds. Furthermore, the air cushion protection device has a reasonable installation location and compact structure, which does not interfere with the normal operation of the power clamp, ensuring the applicability and reliability of the device.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional cross-sectional structural schematic diagram of the present invention;

[0022] Figure 3 This is a three-dimensional cross-sectional structural schematic diagram of the detachable protective cover device of this utility model;

[0023] Figure 4 This is a three-dimensional enlarged structural schematic diagram of the protective cover of this utility model;

[0024] Figure 5 This is a three-dimensional cross-sectional structural diagram of the air cushion protective device of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Main unit; 2. Hanging plate; 3. Back clamp; 4. Main clamp; 5. Detachable protective cover device; 501. Clamping plate one; 502. Rotating plate one; 503. Connecting column one; 504. Protective plate; 505. Connecting column two; 506. Rotating plate two; 507. Clamping plate two; 508. Threaded column one; 509. Locking nut one; 510. Threaded column two; 511. Locking nut two; 6. Air cushion protection device; 601. Top column; 602. Protective pad; 603. Air supply pipe; 604. Pressure airbag; 605. Mounting column; 606. Pressure column. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 This utility model is a protective cover for a power clamp, including a main unit 1 and a hanging plate 2. The top of the main unit 1 is fixedly connected to the bottom of the hanging plate 2. A back clamp 3 is provided on the side of the main unit 1, a main clamp 4 is provided on the side of the main unit 1, and a detachable protective cover device 5 is provided on the side of the main clamp 4.

[0029] The detachable protective cover device 5 includes a clamping plate 501, which is fixedly connected to the circumferential surface of the main clamp 4. A rotating plate 502 is clamped to the inner side of the clamping plate 501. A connecting post 503 is hinged to the side of the rotating plate 502. A protective plate 504 is fixedly connected to the side of the connecting post 503. A connecting post 505 is fixedly connected to the inner circumferential surface of the protective plate 504. A rotating plate 506 is hinged to the inner side of the connecting post 505. A clamping plate 507 is clamped to the side of the rotating plate 506. A threaded post 508 is fixedly connected to the circumferential surface of the main clamp 4. A locking nut 509 is threadedly connected to the circumferential surface of the threaded post 508. A threaded post 510 is fixedly connected to the circumferential surface of the back clamp 3. A locking nut 511 is threadedly connected to the circumferential surface of the threaded post 510.

[0030] As shown in the figure, the side of the second clamp 507 is fixedly connected to the circumferential surface of the back clamp 3, and the side section of the protective plate 504 is set to be arc-shaped, which can better fit the shape of the power clamp and improve the protective effect.

[0031] As shown in the figure, the circumferential surface of threaded post 508 penetrates and slides through the circumferential surface of protective plate 504, and the circumferential surface of threaded post 510 penetrates and slides through the circumferential surface of protective plate 504. The function is to allow protective plate 504 to slide up and down according to the size of the power clamp, thereby adapting to different specifications of power clamps and improving the practicality and applicability of the device.

[0032] As shown in the figure, there are two protective plates 504, locking nuts 509, threaded posts 510, connecting posts 505, and rotating plates 502, which are symmetrically distributed along the vertical central axis of the back clamp 3. Their function is to make the device more stable during protection and improve the protection effect.

[0033] As shown in the figure, the top of the back clamp 3 is equipped with an air cushion protection device 6. The air cushion protection device 6 includes a top post 601, which is fixedly connected to the top of the back clamp 3. A protective pad 602 is fixedly connected to the end of the top post 601 away from the back clamp 3. An air supply pipe 603 is fixedly connected through and to the side of the protective pad 602. A pressure-bearing airbag 604 is fixedly connected to the end of the air supply pipe 603 away from the protective pad 602. A mounting post 605 is fixedly connected to the bottom of the pressure-bearing airbag 604. A pressure post 606 is fixedly connected to the inner circumferential surface of the protective plate 504. Its function is to make the protective pad 602 expand rapidly, to buffer and protect the object held by the power clamp, to prevent damage due to impact, and to improve the safety and service life of the device.

[0034] As shown in the figure, the end of the mounting post 605 away from the pressure-bearing airbag 604 is fixedly connected to the top of the back clip 3. The side section of the protective pad 602 is set as an arc shape, which can better fit the object held by the power clamp and improve the buffer protection effect.

[0035] As shown in the figure, the side of the pressure-bearing airbag 604 is located on the displacement trajectory of the inner circumferential surface of the pressure column 606 away from the protective plate 504. There are two pressure-bearing airbags 604 and two protective plates 504, which are symmetrically distributed along the vertical central axis of the back clamp 3. Their function is to ensure that when the device is impacted, the pressure-bearing airbag 604 can be evenly stressed and quickly inflated to the protective pad 602 through the air supply pipe 603, thereby improving the uniformity and stability of the buffer protection.

[0036] A specific application of this embodiment is as follows: When using a power clamp to hold an object, the object can first be placed between the back clamp 3 and the main clamp 4. Then, by adjusting the position of the protective plate 504 on the threaded post 508 and the threaded post 510, the protective plate 504 is made to fit against the outer surface of the power clamp and the object. Subsequently, by rotating the locking nut 509 and the locking nut 511, the protective plate 504 is fixed to the power clamp, thus protecting the power clamp and the object. During the operation of the power clamp, if the object is impacted, the air cushion protection device 6 will respond quickly. Specifically, the pressure post 606 will compress the pressure-bearing airbag 604 as the protective plate 504 moves. The gas in the pressure-bearing airbag 604 is quickly filled into the protective pad 602 through the air supply pipe 603, causing the protective pad 602 to expand rapidly and provide cushioning protection for the object held by the power clamp. This not only improves the safety and service life of the device but also further enhances its practicality and applicability.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A protective cover for a power clamp, comprising a main unit (1) and a lifting plate (2), characterized in that: The top of the host (1) is fixedly connected to the bottom of the hanging plate (2). The host (1) is provided with a back clip (3) on its side, a main clip (4) on its side, and a detachable protective cover device (5) on the side of the main clip (4). The detachable protective cover device (5) includes a first clamping plate (501), which is fixedly connected to the circumferential surface of the main clamp (4). A first rotating plate (502) is clamped to the inner side of the first clamping plate (501). A first connecting post (503) is hinged to the side of the first rotating plate (502). A protective plate (504) is fixedly connected to the side of the first connecting post (503). A second connecting post (505) is fixedly connected to the inner circumferential surface of the protective plate (504). A rotating plate 2 (506) is hinged to the inner side of the connecting post 2 (505), and a clamping plate 2 (507) is snapped onto the side of the rotating plate 2 (506). A threaded post 1 (508) is fixedly connected to the circumferential surface of the main clamp (4), and a locking nut 1 (509) is threadedly connected to the circumferential surface of the threaded post 1 (508). A threaded post 2 (510) is fixedly connected to the circumferential surface of the back clamp (3), and a locking nut 2 (511) is threadedly connected to the circumferential surface of the threaded post 2 (510).

2. The protective cover for a power clamp according to claim 1, characterized in that, The side of the second card plate (507) is fixedly connected to the circumferential surface of the back clip (3), and the side section of the protective plate (504) is set to be arc-shaped.

3. A protective cover for a power clamp according to claim 2, characterized in that, The circumferential surface of the first threaded post (508) penetrates and is slidably connected to the circumferential surface of the protective plate (504), and the circumferential surface of the second threaded post (510) penetrates and is slidably connected to the circumferential surface of the protective plate (504).

4. A protective cover for a power clamp according to claim 3, characterized in that, The protective plate (504), locking nut one (509), threaded post two (510), connecting post two (505) and rotating plate one (502) are provided in two quantities and are symmetrically distributed along the vertical central axis of the back clamp (3).

5. A protective cover for a power clamp according to claim 4, characterized in that, The top of the back clip (3) is provided with an air cushion protection device (6). The air cushion protection device (6) includes a top post (601). The top post (601) is fixedly connected to the top of the back clip (3). A protective pad (602) is fixedly connected to the end of the top post (601) away from the back clip (3). An air supply pipe (603) is fixedly connected through and to the side of the protective pad (602). A pressure-bearing airbag (604) is fixedly connected to the end of the air supply pipe (603) away from the protective pad (602). An installation post (605) is fixedly connected to the bottom of the pressure-bearing airbag (604). A pressure post (606) is fixedly connected to the inner circumferential surface of the protective plate (504).

6. A protective cover for a power clamp according to claim 5, characterized in that, The end of the mounting post (605) away from the pressure-bearing airbag (604) is fixedly connected to the top of the back clip (3), and the side section of the protective pad (602) is set to be arc-shaped.

7. A protective cover for a power clamp according to claim 6, characterized in that, The side of the pressure-bearing airbag (604) is located on the displacement trajectory of the inner circumferential surface of the pressure column (606) away from the protective plate (504). There are two pressure-bearing airbags (604) and two protective plates (504), which are symmetrically distributed along the vertical central axis of the back clip (3).

Citation Information

Patent Citations

  • Protective cover for power tongs

    CN210127840U