Limiting assembly and hydraulic power tongs

Abstract

The utility model relates to the technical field of hydraulic power tongs, in particular to a limiting assembly which comprises a hydraulic power tong body, a limiting clamping groove is formed in the inner wall of the hydraulic power tong body, and a limiting insertion block is movably connected to the surface of the limiting clamping groove in an inserted mode. The limiting assembly and the hydraulic power tongs have the advantages that the limiting clamping groove is formed in the inner wall of the hydraulic power tongs body, the surface of the limiting insertion block is movably inserted into the surface of the limiting clamping groove, and when the hydraulic power tongs body clamps an object, the limiting insertion block is inserted into the limiting clamping groove; according to the hydraulic power tong, the protective baffle is arranged in the hydraulic power tong body, so that the protective baffle is stably inserted into the hydraulic power tong body, an object clamped by the hydraulic power tong body is blocked and limited through the protective baffle, a handle groove is formed in the surface of the protective baffle, and the surface of a handle is rotationally connected with the surface of the handle groove; and therefore, the protective baffle can be detached from the interior of the hydraulic power tong body by lifting the handle.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic power tongs, in particular to a limiting component and a hydraulic power tong. Background Technique

[0002] A hydraulic tong refers to a professional hydraulic tool specifically used for crimping cables and terminal lugs in workover engineering. Hydraulic tongs can be divided into integral type, split type, electric type, manual type, etc. according to their structures. As a general-purpose tool, hydraulic tongs are widely used, and they have the following advantages: easy to carry, cheap, durable, and high cost performance.

[0003] However, in the existing technology, the existing baffle is connected to the shell of the petroleum hydraulic power tong through a rotating shaft. When the hydraulic power tong clamps an object, it is necessary to firmly install the protective baffle. After the hydraulic power tong is used, it is necessary to disassemble the protective baffle on the surface of the hydraulic power tong.

[0004] Therefore, we need a limiting component and a hydraulic power tong to solve the problem of limiting the protective baffle of the existing hydraulic power tong, and can also realize the installation and disassembly of the protective baffle of the hydraulic power tong. Content of the Utility Model

[0005] The purpose of the utility model is to provide a limiting component and a hydraulic power tong to solve the problem of limiting the protective baffle of the existing hydraulic power tong as mentioned in the above background technique, and can also realize the installation and disassembly of the protective baffle of the hydraulic power tong.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a limiting component, including a hydraulic power tong body, a limiting slot is opened on the inner wall of the hydraulic power tong body, a limiting insert block is movably inserted on the surface of the limiting slot, the surface of the limiting insert block is fixedly connected to the side surface of the protective baffle, a handle groove is opened on the surface of the protective baffle, a rotating shaft is fixedly connected to the surface of the handle groove, and the surface of the rotating shaft is rotatably connected to the inside of the handle.

[0007] Preferably, the limiting slot is arranged in a "convex" shape, the limiting slot does not completely penetrate the top surface of the hydraulic power tong body, the depth of the limiting slot is equal to the width dimension of the limiting insert block, the number of the limiting insert blocks is two, and the two limiting insert blocks are symmetrically arranged along the center point of the protective baffle.

[0008] Preferably, a through hole is opened on the top surface of the hydraulic power tong body, the through hole is communicated with a contraction groove, the contraction groove is arranged inside the hydraulic power tong body, the contraction groove is communicated with the limiting slot, a limiting extrusion block is movably connected to the surface of the contraction groove, and a compression spring is fixedly connected to the side surface of the limiting extrusion block.

[0009] Preferably, a knob groove is formed on the surface of the protective baffle. The end of a limit rotating pin is fixedly connected to the surface of the knob groove. The surface of the limit rotating pin is rotatably connected to the inside of a pressing clamping plate. The inner surface of the pressing clamping plate is attached to the surface of an elastic rubber pad. The inner surface of the elastic rubber pad is attached to the surface of the knob groove. The inner surface of the pressing clamping plate abuts against the surface of the handle, and a rectangular block formed integrally is arranged on the surface of the handle.

[0010] Preferably, the width dimension of the limit extrusion block is equal to the size of the through port, and the cross section of the limit extrusion block is arranged in an "L" shape.

[0011] Preferably, the handle groove and the knob groove are communicated with each other, and the knob groove is arranged in a "U" shape.

[0012] A hydraulic power tongs includes a limit component.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: By forming a limit clamping groove on the inner wall of the hydraulic power tongs body, the surface of the limit insertion block is movably inserted into the surface of the limit clamping groove. When the hydraulic power tongs body clamps an object, the protective baffle is stably inserted into the inside of the hydraulic power tongs body, and the protective baffle plays a role of blocking and limiting the object clamped by the hydraulic power tongs body. When the handle is rotated out from the surface of the handle groove, the protective baffle can be detached from the inside of the hydraulic power tongs body by pulling up the handle. By communicating the through port and the contraction groove with each other and communicating the limit clamping groove and the contraction groove with each other, when the surface of the limit extrusion block is movably connected to the surface of the contraction groove, the elastic force of the compression spring is used to push the limit extrusion block to move on the surface of the contraction groove. Therefore, the bottom surface of the limit extrusion block abuts against the top surface of the limit insertion block, so that the limit insertion block is stably installed on the surface of the limit clamping groove; further solving the problem of the limit of the protective baffle of the existing hydraulic power tongs, and the installation and disassembly of the protective baffle of the hydraulic power tongs can also be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model:

[0015] Figure 2 It is a top view schematic diagram of the overall structure of the utility model:

[0016] Figure 3 It is Figure 2 The structural sectional view at A-A in

[0017] Figure 4 It is a front view schematic diagram of the protective baffle of the structure of the utility model:

[0018] Figure 5 It is Figure 4 The structural sectional view at B-B in

[0019] Figure 6 Schematic diagram of the connection between the protective baffle and the limit insertion block:

[0020] Figure 7 For Figure 3 Enlarged schematic diagram at position A in

[0021] In the figure: the hydraulic power tong body 1, the protective baffle 2, the limit insertion block 3, the limit slot 4, the limit extrusion block 5, the compression spring 6, the through port 7, the contraction groove 8, the rotating shaft 9, the handle 10, the handle slot 11, the rectangular block 12, the knob slot 13, the elastic rubber pad 14, the limit rotating pin 15, the pressing card plate 16. Specific implementation mode

[0022] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] Please refer to Figures 1-7 , the present utility model provides a technical solution: a limit component, including the hydraulic power tong body 1, a limit slot 4 is opened on the inner wall of the hydraulic power tong body 1, a limit insertion block 3 is movably inserted on the surface of the limit slot 4, the surface of the limit insertion block 3 is fixedly connected to the side surface of the protective baffle 2, a handle slot 11 is opened on the surface of the protective baffle 2, a rotating shaft 9 is fixedly connected to the surface of the handle slot 11, and the surface of the rotating shaft 9 is rotatably connected to the inside of the handle 10. By opening a limit slot 4 on the inner wall of the hydraulic power tong body 1 and movably inserting the surface of the limit insertion block 3 to the surface of the limit slot 4, when the hydraulic power tong body 1 clamps an object, the protective baffle 2 is firmly inserted into the inside of the hydraulic power tong body 1, and the protective baffle 2 plays a role of blocking and limiting the object clamped by the hydraulic power tong body 1. By opening a handle slot 11 on the surface of the protective baffle 2 and rotatably connecting the surface of the handle 10 to the surface of the handle slot 11, when the handle 10 is rotated out from the surface of the handle slot 11, the protective baffle 2 can be disassembled from the inside of the hydraulic power tong body 1 by pulling up the handle 10.

[0025] Embodiment 2

[0026] Refer to the attached Figures 1 to 7On the basis of the first embodiment, in order to realize that the protective baffle 2 can be stably installed inside the hydraulic power tongs body 1, a through hole 7 is opened on the top surface of the hydraulic power tongs body 1, and the through hole 7 is communicated with the contraction groove 8, the contraction groove 8 is arranged inside the hydraulic power tongs body 1, and the contraction groove 8 is communicated with the limit card slot 4, and the surface of the contraction groove 8 is movably connected to the limit extrusion block 5, and the side surface of the limit extrusion block 5 is fixedly connected with the compression spring 6;

[0027] By setting the through-port 7 and the shrinkage groove 8 in communication, and the limiting slot 4 and the shrinkage groove 8 in communication, when the surface of the limiting extrusion block 5 is movably connected to the surface of the shrinkage groove 8, the elastic force of the compression spring 6 pushes the limiting extrusion block 5 to move on the surface of the shrinkage groove 8, so that the bottom surface of the limiting extrusion block 5 is against the top surface of the limiting plug 3, so that the limiting plug 3 is firmly installed on the surface of the limiting slot 4, so that the protective baffle 2 can be firmly installed inside the hydraulic power tongs body 1, and when the protective baffle 2 needs to be removed, the bottom of the limiting extrusion block 5 is moved without compressing and limiting the top surface of the limiting plug 3, and the protective baffle 2 can be removed by pulling the handle 10 out of the inner knob of the handle groove 11 and pulling the handle 10 upward.

[0028] Embodiment 3

[0029] See attached Figures 1 to 7 On the basis of the second embodiment, in order to limit the handle 10 by pressing the card plate 16, a knob groove 13 is provided on the surface of the protective baffle 2, the surface of the knob groove 13 is fixedly connected to the end of the limit rotation pin 15, the surface of the limit rotation pin 15 is rotatably connected to the inside of the pressing card plate 16, the inner surface of the pressing card plate 16 fits the surface of the elastic rubber pad 14, the inner surface of the elastic rubber pad 14 fits the surface of the knob groove 13, the inner surface of the pressing card plate 16 is against the surface of the handle 10, and the surface of the handle 10 is provided with an integrally formed rectangular block 12;

[0030] A knob groove 13 is opened on the surface of the protective baffle 2, the surface of the knob groove 13 is fixedly connected to the end of the limit pin 15, and then the surface of the limit pin 15 is rotated to connect the elastic rubber pad 14 and the inside of the pressing card plate 16. When the knob presses the card plate 16, it can be compressed on the surface of the handle 10. When the knob handle 10 is turned to the surface of the handle groove 11, the handle 10 can be limited by pressing the card plate 16.

[0031] Embodiment 4

[0032] A hydraulic power tong comprises a limit assembly.

[0033] In actual use, by opening a limit card slot 4 on the inner wall of the hydraulic power tongs body 1, the surface of the limit card slot 4 is movably inserted into the surface of the limit card slot 4. When the hydraulic power tongs body 1 clamps an object, the protective baffle 2 is firmly inserted into the inside of the hydraulic power tongs body 1, and the protective baffle 2 plays a blocking and limiting role on the object clamped by the hydraulic power tongs body 1. By opening a handle slot 11 on the surface of the protective baffle 2, the surface of the handle 10 is rotated to connect to the surface of the handle slot 11. When the handle 10 is turned out from the surface of the handle slot 11, the protective baffle 2 can be removed from the inside of the hydraulic power tongs body 1 by pulling the handle 10. By setting the through port 7 and the contraction groove 8 in communication, and setting the limit card slot 4 and the contraction groove 8 in communication, when the surface of the limit extrusion block 5 is movably connected to the surface of the contraction groove 8, the elastic force of the compression spring 6 pushes the limit extrusion block 5 in the contraction groove 8. The surface moves, so the bottom surface of the limiting extrusion block 5 is against the top surface of the limiting plug block 3, so that the limiting plug block 3 is firmly installed on the surface of the limiting card slot 4, so the protective baffle 2 can be firmly installed inside the hydraulic power tongs body 1, and when the protective baffle 2 needs to be removed, the bottom of the limiting extrusion block 5 is not compressed and limited on the top surface of the limiting plug block 3 by toggling the limiting extrusion block 5, and the protective baffle 2 can be removed by pulling the handle 10 out of the inner knob of the handle groove 11 and pulling the handle 10 upward. A knob groove 13 is opened on the surface of the protective baffle 2, and the surface of the knob groove 13 is fixedly connected to the end of the limiting turn pin 15, and then the surface of the limiting turn pin 15 is rotated to connect the elastic rubber pad 14 and the inside of the pressing card plate 16. When the knob presses the card plate 16, it can be compressed on the surface of the handle 10. When the knob handle 10 is rotated to the surface of the handle groove 11, the handle 10 can be limited by pressing the card plate 16.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A limiter assembly, comprising a hydraulic power tong body (1), characterized in that: The inner wall of the hydraulic power tongs body (1) is provided with a limit slot (4), the surface of the limit slot (4) is movably plugged with a limit plug block (3), the surface of the limit plug block (3) is fixedly connected to the side surface of the protective baffle (2), the surface of the protective baffle (2) is provided with a handle slot (11), the surface of the handle slot (11) is fixedly connected to a rotating shaft (9), and the surface of the rotating shaft (9) is rotatably connected to the inside of a handle (10).

2. A limiter assembly according to claim 1, characterized in that: The limiting slot (4) is arranged in a "convex" shape, the limiting slot (4) does not completely penetrate the top surface of the hydraulic power tongs body (1), the depth of the limiting slot (4) is equal to the width of the limiting plug (3), there are two limiting plugs (3), and the two limiting plugs (3) are symmetrically arranged along the center point of the protective baffle (2).

3. A limiter assembly according to claim 1, characterized in that: The top surface of the hydraulic power tongs body (1) is provided with a through hole (7), the through hole (7) is communicated with a contraction groove (8), the contraction groove (8) is arranged inside the hydraulic power tongs body (1), the contraction groove (8) is communicated with the limit clamping groove (4), the surface of the contraction groove (8) is movably connected to a limit extrusion block (5), and the side surface of the limit extrusion block (5) is fixedly connected to a compression spring (6).

4. A limiter assembly according to claim 1, characterized in that: The surface of the protective baffle (2) is provided with a knob groove (13), the surface of the knob groove (13) is fixedly connected to the end of a limit rotation pin (15), the surface of the limit rotation pin (15) is rotatably connected to the inside of a pressing card plate (16), the inner surface of the pressing card plate (16) fits the surface of an elastic rubber pad (14), the inner surface of the elastic rubber pad (14) fits the surface of the knob groove (13), the inner surface of the pressing card plate (16) is against the surface of the handle (10), and the surface of the handle (10) is provided with an integrally formed rectangular block (12).

5. A limiter assembly according to claim 3, characterized in that: The width dimension of the limiting extrusion block (5) is equal to the dimension of the through opening (7), and the cross section of the limiting extrusion block (5) is arranged in an "L" shape.

6. A limiter assembly according to claim 1, characterized in that: The handle groove (11) and the knob groove (13) are arranged in communication with each other, and the knob groove (13) is arranged in a "U" shape.

7. A hydraulic power tongs, characterized in that: The invention comprises the limiting component described in any one of claims 1 to 6.

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