Purging tool for inner wall of steel pipe

Abstract

The utility model provides a steel pipe inner wall purging tool which comprises an air pipe quick connector, a hand slide valve, a spring and a flexible purging connector, the air pipe quick connector is connected to the front end of the hand slide valve, the flexible purging connector is connected to the rear end of the hand slide valve, the spring is arranged between the hand slide valve and the flexible purging connector, and the flexible purging connector is connected to the air pipe quick connector. When the sliding sleeve of the hand sliding valve slides towards the flexible purging connector, the air pipe quick connector is communicated with the flexible purging connector. The steel pipe blowing device is simple in structure, convenient to operate and good in universality, the end face and the inner wall of a steel pipe are prevented from being damaged when the steel pipe is blown, and quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe inner wall purging, specifically to a steel pipe inner wall purging tool. Background Technology

[0002] After the steel pipes are manufactured, they undergo a water pressure test. To remove residual water stains inside the steel pipes, a blower is usually used to directly blow them clean. Blowing with a blower is inexpensive and convenient, but the air hose of the blower needs to be inserted into the steel pipe during the blowing process, which inevitably causes damage to the end face and inner wall of the steel pipe, impairing its appearance and performance. Utility Model Content

[0003] The purpose of this utility model is to provide a steel pipe inner wall blowing tool, which solves the technical problem mentioned in the background art that the use of a blower gun to directly blow the steel pipe end face and inner wall is prone to damage.

[0004] To achieve the above objectives, this utility model provides a steel pipe inner wall purging fixture, including a quick-connect air hose, a hand slide valve, a spring, and a flexible purging connector. The quick-connect air hose is connected to the front end of the hand slide valve, and the flexible purging connector is connected to the rear end of the hand slide valve. The spring is disposed between the hand slide valve and the flexible purging connector. When the sliding sleeve of the hand slide valve slides toward the flexible purging connector, the quick-connect air hose is connected to the flexible purging connector.

[0005] Furthermore, the flexible purging connector has a flared opening at its rear end.

[0006] Furthermore, the flexible purging connector is a polyurethane connector.

[0007] Compared with existing technologies, the beneficial effect of this utility model is that the quick-connect air hose and the purging connector are connected together by a hand-operated sliding valve. Sliding the hand-operated sliding valve connects the quick-connect air hose and the purging connector, thereby purging the inner wall of the steel pipe. The purging connector is a flexible connector with a flared end, which facilitates the alignment of the steel pipe end without damaging the end face and inner wall of the steel pipe, thus ensuring the quality of the steel pipe after purging. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall assembled structure of this utility model;

[0009] Figure 2 for Figure 1 Exploded view;

[0010] Figure 3 This is a schematic diagram illustrating the use of this utility model;

[0011] In the diagram, 1. quick-connect tubing; 2. hand slide valve; 3. spring; 4. flexible purge connector; 5. steel pipe; 6. bell mouth. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0015] In the description of this utility model, it should be noted that the terms "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings.

[0018] like Figure 1-2As shown, the steel pipe inner wall purging fixture of this utility model includes a quick-connect air hose coupling 1, a hand slide valve 2, a spring 3, and a flexible purging connector 4. The quick-connect air hose coupling 1 is threaded to the front end of the hand slide valve 2, and the flexible purging connector 4 is threaded to the rear end of the hand slide valve 2. The spring 3 is disposed between the hand slide valve 2 and the flexible purging connector 4. When the sliding sleeve of the hand slide valve 2 slides toward the flexible purging connector 4, the quick-connect air hose coupling 1 and the flexible purging connector 4 are connected. The quick-connect air hose coupling 1 is used to connect to an air hose, and the flexible purging connector 4 is used to connect to a steel pipe. The rear end of the flexible purging connector 4 is provided with a flared end 6, which facilitates the alignment and centering of the steel pipe end. The flexible purging connector 4 can be made of polyurethane, polypropylene, or polytetrafluoroethylene, preferably polyurethane. Polyurethane has excellent wear resistance and flexibility, and its transparent texture means it will not damage the steel pipe and is easy to observe the contact position of the steel pipe ends, which is beneficial for alignment.

[0019] See appendix Figure 3 As shown, before purging, insert the air hose into the quick-connect fitting 1, insert the front end of the steel pipe 5 into the flared end of the flexible purging connector 4, and slide the sliding sleeve of the hand valve 2 towards the end of the flexible purging connector 4 to connect the air passage and purge the steel pipe 5. After purging, release the sliding sleeve of the hand valve 2, and the spring 3 will drive the sliding sleeve to return to its original position, closing the air passage. If the end of the steel pipe 5 is not aligned with the flared end of the flexible purging connector 4 during purging, a hissing sound will be heard. Adjust the relative angle between the steel pipe 5 and the flexible purging connector 4 to resolve this.

[0020] This utility model has a simple structure, is easy to operate, and has high versatility. The flared mouth 6 at the rear end of the flexible purging connector 4 can be adapted to steel pipes of different diameters. Steel pipes with relatively small diameters can be inserted slightly deeper, while steel pipes with larger diameters can be inserted slightly shallower.

[0021] The basic principles and advantages of this utility model have been described above. For those skilled in the art, the above embodiments are merely illustrative of the technical solutions of this utility model and not intended to limit it. Although this 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 make equivalent substitutions for some or all of the technical features by reading this specification. Any obvious substitutions are within the protection scope of this utility model without departing from its concept.

Claims

1. A steel pipe inner wall purging fixture, characterized in that, The device includes a quick-connect endotracheal connector (1), a sliding valve (2), a spring (3), and a flexible purge connector (4). The quick-connect endotracheal connector (1) is connected to the front end of the sliding valve (2), and the flexible purge connector (4) is connected to the rear end of the sliding valve (2). The spring (3) is disposed between the sliding valve (2) and the flexible purge connector (4). When the sliding sleeve of the sliding valve (2) slides toward the flexible purge connector (4), the quick-connect endotracheal connector (1) communicates with the flexible purge connector (4).

2. The steel pipe inner wall purging fixture according to claim 1, characterized in that, The flexible purging connector (4) has a flared mouth (6) at its rear end.

3. The steel pipe inner wall purging fixture according to claim 2, characterized in that, The flexible purge connector (4) is a polyurethane connector.

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