Hydraulic casing tongs with tooth mark-free clamping mode

Abstract

The utility model relates to the technical field of hydraulic casing tongs, in particular to a hydraulic casing tong with a tooth mark-free clamping mode, which comprises a hydraulic device, and the outer surface of the hydraulic device is fixedly connected with a clamping frame; the hydraulic casing tongs with the tooth mark-free clamping mode have the advantages that the slip rubber block is arranged in the clamping frame, then the surface of the slip rubber block is fixedly connected to the surface of the clamping block, meanwhile, the surface of the clamping block is connected into the clamping groove in an inserted mode, the slip rubber block is clamped in the clamping groove, and the clamping block is clamped in the clamping groove. The hydraulic device is arranged in the clamping frame, so that the slip rubber block is stably mounted on the surface of the pushing block, the pushing block moves in the clamping frame when the hydraulic device is started, the pushing block drives the slip rubber block to move to clamp the surface of a pipe body, and traceless clamping can be achieved when the surface of the slip rubber block clamps the pipe body; meanwhile, when the slip rubber block clamps the knob on the surface of the pipe body, the surface of the pipe body cannot be damaged.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic sleeve clamp technology, specifically a hydraulic sleeve clamp with a toothless clamping method. Background Technology

[0002] Hydraulic casing wrenches are an important tool widely used in casing connection operations in industries such as oil and gas.

[0003] However, existing hydraulic casing wrenches often use a toothed gripping method when clamping casings, that is, clamping the casing surface by the teeth of the jaws. However, this method has significant problems: toothed gripping leaves noticeable marks on the casing surface, affecting not only the casing's aesthetics but, more importantly, these marks can become a hidden danger for cracks or breakage during use, thus reducing the casing's lifespan and safety. Furthermore, traditional hydraulic casing wrenches are prone to surface damage during operation due to the difficulty in controlling the clamping force, further increasing the risks during casing use. Therefore, we need a hydraulic casing wrench with a toothed gripping method. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic sleeve clamp with a tooth-free clamping method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic sleeve clamp with a tooth-free clamping method, comprising:

[0006] A hydraulic device, wherein a clamping frame is fixedly connected to the outer surface of the hydraulic device;

[0007] The clamping frame is internally connected to a push block, the surface of which is provided with a slip rubber block, and a locking block is fixedly connected to the surface of the slip rubber block. The surface of the locking block is inserted into the surface of the locking slot, which is located on the surface of the push block.

[0008] Preferably, the cross-section of the card slot is convex, the surface of the card slot is in close contact with the surface of the card block, the length of the card block is less than the depth of the card slot, and the card slot is configured in two sets, with the two sets of card slots symmetrically arranged along the central axis of the push block.

[0009] Preferably, the clamping frame has a guide groove inside, a guide block is movably connected to the surface of the guide groove, the surface of the guide block is fixedly connected to the surface of the push block, and the guide blocks are configured in two sets, and the two sets of guide blocks are symmetrically arranged along the center point of the guide groove.

[0010] Preferably, a spiral rod is screwed into the inside of the clamping frame, the end of the spiral rod abuts against the surface of the push block, a bearing ring is fixedly connected inside the spiral rod, the inner ring of the bearing ring is fixedly connected to the surface of the fixed shaft, and the end of the fixed shaft is fixedly connected to the surface of the push block.

[0011] Preferably, there are two push blocks, and the two push blocks are symmetrically arranged along the center point of the guide groove, with the surface of one of the push blocks fixedly connected to the end of the output shaft of the hydraulic device.

[0012] Preferably, the surface of the push block has a notch, which is connected to the slot. A fixing pin is fixedly connected to the surface of the notch. The surface of the fixing pin is rotatably connected to the inside of the extrusion plate. The inner surface of the extrusion plate is in close contact with the surface of the block. The cross-section of the fixing pin is T-shaped.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a slip rubber block inside the clamping frame, and then fixing the surface of the slip rubber block to the surface of the clamping block, and inserting the surface of the clamping block into the slot, the slip rubber block is stably installed on the surface of the pushing block. Therefore, when the hydraulic device is activated, the pushing block moves within the clamping frame, thereby driving the slip rubber block to move and clamp the surface of the tube. When the surface of the slip rubber block clamps the tube, it can achieve traceless clamping. At the same time, when the slip rubber block clamps the tube surface knob, it will not cause damage to the tube surface. When the knob screw is turned, the screw pushes the pushing block to move within the clamping frame, thus allowing the slip rubber block on the surface of the pushing block to further clamp the tube surface. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the push block of this utility model;

[0017] Figure 4 A schematic diagram showing the connection between the push block and the chuck rubber block.

[0018] In the diagram: 1. Hydraulic device; 2. Clamping frame; 3. Guide groove; 4. Guide block; 5. Push block; 6. Slip rubber block; 7. Slot; 8. Slip block; 9. Spiral rod; 10. Fixed shaft; 11. Bearing ring; 12. Extrusion plate; 13. Notch; 14. Fixed pivot rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1, please refer to Figures 1-4 This utility model provides a technical solution: a hydraulic sleeve clamp with a tooth-free clamping method, comprising:

[0021] The hydraulic device 1 has a clamping frame 2 fixedly connected to its outer surface.

[0022] The inside of the clamping frame 2 is movably connected to a push block 5. The surface of the push block 5 is provided with a slip rubber block 6. The surface of the slip rubber block 6 is fixedly connected to a locking block 8. The surface of the locking block 8 is inserted into the surface of the locking groove 7, which is opened on the surface of the push block 5.

[0023] By setting a slip rubber block 6 inside the clamping frame 2, and then fixing the surface of the slip rubber block 6 to the surface of the clamping block 8, and inserting the surface of the clamping block 8 into the clamping groove 7, the slip rubber block 6 is stably installed on the surface of the pushing block 5. Therefore, when the hydraulic device 1 is activated, the pushing block 5 moves within the clamping frame 2, thereby driving the slip rubber block 6 to move and clamp the surface of the tube. When the surface of the slip rubber block 6 clamps the tube, it can achieve traceless clamping. At the same time, when the slip rubber block 6 clamps the knob 1 on the surface of the tube, it will not cause damage to the surface of the tube.

[0024] Example 2, see attached document Figures 1 to 4 Based on Embodiment 1, in order to further clamp the surface of the tube, a spiral rod 9 is screwed into the inside of the clamping frame 2. The end of the spiral rod 9 abuts against the surface of the push block 5. A bearing ring 11 is fixedly connected inside the spiral rod 9. The inner ring of the bearing ring 11 is fixedly connected to the surface of the fixed shaft 10. The end of the fixed shaft 10 is fixedly connected to the surface of the push block 5.

[0025] When the knob screw 9 is turned, the screw 9 pushes the push block 5 to move inside the clamping frame 2, so that the clamping rubber block 6 on the surface of the push block 5 can further clamp the surface of the tube.

[0026] Example 3, refer to Appendix Figures 1 to 4Based on Embodiment 2, in order to enable the disassembly of the push block 5 and the card slot 6, a notch 13 is provided on the surface of the push block 5. The notch 13 and the card slot 7 are connected. A fixing pivot 14 is fixedly connected to the surface of the notch 13. The surface of the fixing pivot 14 is rotatably connected to the inside of the extrusion plate 12. The inner surface of the extrusion plate 12 is in close contact with the surface of the card block 8. The cross-section of the fixing pivot 14 is set in a "T" shape.

[0027] By rotating the surface of the fixed pivot 14 to connect to the inside of the compression plate 12, when the knob is turned to compress the inner surface of the compression plate 12, the compression plate 12 is compressed onto the surface of the locking block 8. Thus, the locking block 8 is securely locked onto the surface of the slot 7. At the same time, after the knob compression plate 12 and the slot 7 are misaligned, the push block 5 and the locking rubber block 6 can be disassembled.

[0028] In actual use, by setting a slip rubber block 6 inside the clamping frame 2, and then fixing the surface of the slip rubber block 6 to the surface of the clamping block 8, and simultaneously inserting the surface of the clamping block 8 into the clamping groove 7, the slip rubber block 6 is securely installed on the surface of the pushing block 5. Therefore, when the hydraulic device 1 is activated, the pushing block 5 moves within the clamping frame 2, thereby moving the slip rubber block 6 to clamp the surface of the pipe. When the surface of the slip rubber block 6 clamps the pipe, it can achieve traceless clamping. At the same time, when the slip rubber block 6 clamps the knob 1 on the surface of the pipe... This will not damage the surface of the tube. When the knob screw rod 9 is turned, the screw rod 9 pushes the push block 5 to move inside the clamping frame 2. Therefore, the clamping rubber block 6 on the surface of the push block 5 can further clamp the surface of the tube. By rotating the surface of the fixed pivot rod 14 to connect to the inside of the extrusion plate 12, when the knob extrusion plate 12 is turned, its inner surface is compressed on the surface of the clamping block 8. Therefore, the clamping block 8 is firmly locked on the surface of the slot 7. At the same time, after the knob extrusion plate 12 and the slot 7 are misaligned, the push block 5 and the clamping rubber block 6 can be disassembled.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic pipe tongs with non-marking gripping, characterized in that: Include: Hydraulic device (1), the outer surface of the hydraulic device (1) is fixedly connected with clamping frame (2); The inside of clamping frame (2) is movably connected with push block (5), the surface of push block (5) is provided with slip rubber block (6), the surface of slip rubber block (6) is fixedly connected with clamping block (8), the surface of clamping block (8) is inserted into the surface of clamping groove (7), and clamping groove (7) is opened in the surface of push block (5).

2. The hydraulic casing clamp with non-marring gripping means according to claim 1, characterized in that: The cross section of the clamping groove (7) is arranged in "convex” structure, the surface of the clamping groove (7) is close to the surface of the clamping block (8), the length of the clamping block (8) is less than the depth of the clamping groove (7), the clamping groove (7) is provided with two groups, and the two groups of clamping grooves (7) are symmetrically arranged along the central axis of the push block (5).

3. The hydraulic casing collar locator according to claim 1, characterized in that: The inside of the clamping frame (2) is provided with guide groove (3), the surface of the guide groove (3) is movably connected with guide block (4), the surface of the guide block (4) is fixedly connected with the surface of the push block (5), and the guide block (4) is provided with two groups, and the two groups of guide blocks (4) are symmetrically arranged along the center point of the guide groove (3).

4. The hydraulic casing collar locator according to claim 1, characterized in that: The inside of the clamping frame (2) is screwed with screw rod (9), the end of the screw rod (9) abuts against the surface of the push block (5), the inside of the screw rod (9) is fixedly connected with bearing ring (11), the inner ring of the bearing ring (11) is fixedly connected with the surface of the fixed shaft (10), and the end of the fixed shaft (10) is fixedly connected with the surface of the push block (5).

5. The hydraulic casing collar locator according to claim 1, characterized in that: The push block (5) is provided with two, and the two push blocks (5) are symmetrically arranged along the center point of the guide groove (3), wherein the surface of one of the push blocks (5) is fixedly connected with the output shaft end of the hydraulic device (1).

6. The hydraulic casing collar locator according to claim 1, characterized in that: The surface of the push block (5) is provided with notch (13), which is communicated between the notch (13) and the clamping groove (7), the surface of the notch (13) is fixedly connected with fixed rotating pin rod (14), the surface of the fixed rotating pin rod (14) is rotatably connected in the extrusion plate (12), the inner surface of the extrusion plate (12) is close to the surface of the clamping block (8), and the cross section of the fixed rotating pin rod (14) is arranged in "T” shape structure.

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