Anti-falling pneumatic chuck for washing steel pipe

Abstract

The utility model discloses an anti-drop pneumatic chuck for washing a steel pipe, which comprises a base, a piston, a pressing ring and an elastic sealing sleeve, a first guide hole corresponding to the pressing ring is concavely arranged on the front surface of the base, a mounting hole corresponding to the elastic sealing sleeve is concentrically arranged at the bottom of the first guide hole, and the elastic sealing sleeve is arranged in the mounting hole. The front end of the elastic sealing sleeve extends into the first guide hole, the pressing ring is arranged in the first guide hole and makes contact with the front end of the elastic sealing sleeve, piston holes located in one side or two sides of the mounting hole are axially formed in the bottom of the first guide hole, the piston is arranged in the piston holes, and a connecting rod is arranged between the piston and the pressing ring. The side face of the base is provided with an air inlet pipe connecting hole which is communicated with the piston hole and perpendicularly points to the connecting rod, the bottom of the mounting hole is concentrically provided with a water inlet hole extending to the back face of the base, the outer wall of the steel pipe is clamped by extruding the elastic sealing sleeve through the pressing ring, and the stability of connection with the steel pipe is improved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment, and in particular to an anti-detachment pneumatic clamp for rinsing steel pipes. Background Technology

[0002] The cleaning process for steel pipes involves cleaning not only the outer wall of the pipe but also the inner wall.

[0003] Some steel pipes are several meters long, making it difficult to achieve efficient cleaning of the inner walls by directly placing them into the cleaning tank. Water needs to be directed into the steel pipes to rinse their inner walls. To ensure effective cleaning, the water flow has a relatively strong impact. If only one end of the water pipe is inserted, the pipe may loosen under the impact of the water flow, affecting the normal cleaning process. Therefore, improvements are needed. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a pneumatic clamp for rinsing steel pipes to prevent loosening and achieve quick clamping and fixing during steel pipe rinsing.

[0005] To solve the above-mentioned technical problems, the present invention provides a pneumatic chuck for rinsing steel pipes, comprising: a base, a piston, a pressure ring, and an elastic sealing sleeve. The base has a recessed first guide hole corresponding to the pressure ring on its front side. A mounting hole corresponding to the elastic sealing sleeve is concentrically provided at the bottom of the first guide hole. The elastic sealing sleeve is disposed in the mounting hole, with its front end extending into the first guide hole. The pressure ring is disposed in the first guide hole and contacts the front end of the elastic sealing sleeve. A piston hole is axially provided at the bottom of the first guide hole, located on one or both sides of the mounting hole. The piston is disposed in the piston hole. A connecting rod is provided between the piston and the pressure ring. An air inlet pipe connection hole communicating with the piston hole and perpendicularly pointing towards the connecting rod is provided on the side of the base. A water inlet hole extending to the back of the base is concentrically provided at the bottom of the mounting hole.

[0006] In a preferred embodiment of the present invention, a threaded hole is provided at the front end of the piston hole, a nut is provided in the threaded hole, a second guide hole corresponding to the connecting rod is provided in the nut, and a sealing ring is provided in the second guide hole.

[0007] In a preferred embodiment of the present invention, the back of the base is provided with a water inlet pipe connector that is threadedly connected to the water inlet hole.

[0008] In a preferred embodiment of the present invention, a retaining ring located in front of the pressure ring is provided in the first guide hole.

[0009] In a preferred embodiment of this utility model, the retaining ring is a retaining spring, and the inner wall of the mounting hole is provided with an annular groove corresponding to the retaining ring.

[0010] In a preferred embodiment of this utility model, the diameters of the first guide hole, the mounting hole, and the water inlet hole are successively reduced.

[0011] In a preferred embodiment of the present invention, the base is provided with an exhaust port that communicates with the end of the piston hole.

[0012] The beneficial effects of this utility model are as follows: The pneumatic chuck for rinsing steel pipes disclosed in this utility model allows for the insertion of one end of the steel pipe into an elastic sealing sleeve. Compressed air is then introduced into the piston hole through an air inlet pipe connected to the air inlet pipe connection hole, pushing the piston backward. The connecting rod pulls the pressure ring backward, compressing the elastic sealing sleeve and causing it to deform elastically towards the outer wall of the steel pipe. This strengthens the connection between the elastic sealing sleeve and the outer wall of the steel pipe, preventing the steel pipe from becoming detached from the elastic sealing sleeve during rinsing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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, wherein:

[0014] Figure 1 This is a schematic diagram of a preferred embodiment of the anti-detachment pneumatic clamp for steel pipe flushing according to this utility model;

[0015] Figure 2 yes Figure 1 A magnified view of part A in the middle. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Please see Figures 1-2 The embodiments of this utility model include:

[0018] like Figure 1 and Figure 2The steel pipe flushing anti-detachment pneumatic chuck shown includes: a base 1, a piston 6, a pressure ring 3, and an elastic sealing sleeve 2. The front of the base 1 is recessed and has a first guide hole 17 corresponding to the pressure ring 3. The bottom of the first guide hole 17 is concentrically provided with a mounting hole 18 corresponding to the elastic sealing sleeve 2. The elastic sealing sleeve 2 is disposed in the mounting hole 18, and the front end of the elastic sealing sleeve 2 extends into the first guide hole 17 to facilitate the compression of the elastic sealing sleeve 2.

[0019] The pressure ring 3 is placed in the first guide hole 17 and contacts the front end of the elastic sealing sleeve 2. The elastic sealing sleeve 2 is compressed by the rearward movement of the pressure ring 3. In this embodiment, a retaining ring 5 is provided in the first guide hole 17 in front of the pressure ring 3 to limit the forward movement of the pressure ring 3. The retaining ring 5 can be a retaining spring, and an annular groove 15 corresponding to the retaining ring 5 is provided on the inner wall of the mounting hole 18 for easy assembly and disassembly.

[0020] like Figure 1 As shown, piston holes 14 are axially arranged at the bottom of the first guide hole 17, located on both sides of the mounting hole 18. The piston 6 is arranged in the piston hole 14. A connecting rod 7 is arranged between the piston 6 and the pressure ring 3. The connecting rod 7 is connected to the pressure ring 3 by a thread, so that the piston 6 can drive the pressure ring 3 to move backward during the backward movement, thereby squeezing the elastic sealing sleeve 2.

[0021] The base 1 has an air inlet pipe connection hole 11 on its side, which communicates with the piston hole 14 and points perpendicularly to the connecting rod 7. An air inlet pipe is connected to the air inlet pipe 11, and an air compressor is connected to the air inlet pipe and equipped with an air valve. After the steel pipe is inserted into the elastic sealing sleeve 2, the air valve is opened and compressed air is sent into the piston hole 14. The compressed air pushes the piston 6 to move backward, thereby driving the pressure ring 3 to move backward and compress the elastic sealing sleeve 2. This causes the elastic sealing sleeve 2 to deform elastically toward the outer wall of the steel pipe, strengthening the connection between the elastic sealing sleeve 2 and the outer wall of the steel pipe and preventing the steel pipe from loosening from the elastic sealing sleeve 2 during the flushing process.

[0022] The elastic sealing sleeve 2 can be made of rubber. When subjected to axial force, it will generate radial elastic expansion, thereby achieving clamping of the outer wall of the steel pipe.

[0023] like Figure 1 As shown, the base 1 has an exhaust port 13 on its side that communicates with the end of the piston hole 14. During the backward movement of the piston 6, the airflow behind it is discharged through the exhaust port 13, without affecting the backward movement of the piston 6. Figure 2 As shown, a threaded hole 16 is provided at the front end of the piston hole 14, and a nut 8 is provided in the threaded hole 16. A second guide hole corresponding to the connecting rod 7 is provided in the nut 8 to guide the connecting rod 7. A sealing ring 9 is provided in the second guide hole to prevent air leakage.

[0024] A water inlet hole 12 extending to the back of the base 1 is concentrically provided at the bottom of the mounting hole 18. In this embodiment, the diameters of the first guide hole 17, the mounting hole 18, and the water inlet hole 12 decrease sequentially, forming a stepped hole structure. A water inlet pipe connector 4 is provided on the back of the base 1, which is threadedly connected to the water inlet hole 12. The water inlet pipe connector 4 can be connected to an external water inlet pipe, and a water valve can be installed on the water inlet pipe. When the water valve is opened, high-pressure water is introduced into the water inlet hole 12 and finally enters the steel pipe for rinsing the inner wall.

[0025] In summary, the pneumatic chuck for steel pipe rinsing disclosed in this utility model can quickly clamp steel pipes, is easy to operate, has high stability, and avoids the problem of loosening during the steel pipe rinsing process.

[0026] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pneumatic chuck for rinsing steel pipes to prevent slippage, characterized in that, include: The base comprises a base, a piston, a pressure ring, and an elastic sealing sleeve. The base has a recessed first guide hole corresponding to the pressure ring on its front side. A mounting hole corresponding to the elastic sealing sleeve is concentrically provided at the bottom of the first guide hole. The elastic sealing sleeve is disposed in the mounting hole, with its front end extending into the first guide hole. The pressure ring is disposed in the first guide hole and contacts the front end of the elastic sealing sleeve. A piston hole is axially provided at the bottom of the first guide hole, located on one or both sides of the mounting hole. The piston is disposed in the piston hole. A connecting rod is provided between the piston and the pressure ring. An air inlet pipe connection hole communicating with the piston hole and perpendicularly pointing towards the connecting rod is provided on the side of the base. A water inlet hole extending to the back of the base is concentrically provided at the bottom of the mounting hole.

2. The anti-detachment pneumatic clamp for steel pipe flushing according to claim 1, characterized in that, The piston bore has a threaded hole at its front end, a nut is provided in the threaded hole, a second guide hole corresponding to the connecting rod is provided in the nut, and a sealing ring is provided in the second guide hole.

3. The anti-detachment pneumatic clamp for steel pipe flushing according to claim 1, characterized in that, The back of the base is provided with a water inlet pipe connector that is threadedly connected to the water inlet hole.

4. The anti-detachment pneumatic clamp for steel pipe flushing according to claim 1, characterized in that, A retaining ring is provided in the first guide hole, located in front of the pressure ring.

5. The anti-detachment pneumatic clamp for steel pipe flushing according to claim 4, characterized in that, The retaining ring is a retaining ring, and the inner wall of the mounting hole is provided with an annular groove corresponding to the retaining ring.

6. The anti-detachment pneumatic clamp for steel pipe flushing according to claim 1, characterized in that, The diameters of the first guide hole, mounting hole, and water inlet hole decrease sequentially.

7. The anti-detachment pneumatic clamp for steel pipe flushing according to claim 1, characterized in that, The base has an exhaust port on its side that communicates with the end of the piston hole.

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