A rapid pressure testing fixture for intercooler steel pipes

Abstract

This utility model discloses a rapid pressure testing fixture for intercooler steel pipes, comprising a main body, a fixed sleeve installed at the lower end of the main body, a sliding sleeve sliding within the main body and the fixed sleeve, and a rubber sleeve disposed between the lower end face of the sliding sleeve and the fixed sleeve. The upper part of the side of the main body is provided with a first air inlet and a second air inlet. The first air inlet communicates with the space formed between the main body and the sliding sleeve, and the second air inlet passes through the sliding sleeve and communicates with the inner cavity of the sliding sleeve. Both the first and second air inlets are connected to an air pump. This utility model uses air pressure as a power source to push the sliding sleeve to compress the rubber sleeve, causing the rubber ring to deform. The rubber ring forms a radial seal with the outer diameter of the pipe, achieving rapid assembly, good sealing performance, a pressure holding pressure ≥0.3MPa, improved safety, and the ability to hold pressure for up to 3 minutes.

Description

Technical Field

[0001] This utility model relates to the field of intercooler processing technology, specifically to a rapid pressure testing fixture for intercooler steel pipes. Background Technology

[0002] Traditional pressure testing processes for large-scale intercooler steel pipes involve internal expansion assembly followed by air inflation; this is inefficient, prone to leakage, and fails to meet specified pressure requirements. Therefore, a new rapid pressure testing device was developed. Utility Model Content

[0003] The purpose of this invention is to provide a rapid pressure testing fixture for intercooler steel pipes to solve the technical problems of low efficiency and easy leakage mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rapid pressure testing fixture for intercooler steel pipes, comprising a main body, a fixed sleeve installed at the lower end of the main body, a sliding sleeve that slides within the main body and the fixed sleeve, and a rubber sleeve disposed between the lower end face of the sliding sleeve and the fixed sleeve; the upper part of the side of the main body is provided with a first air inlet and a second air inlet, the first air inlet communicating with the space formed between the main body and the sliding sleeve, the second air inlet passing through the sliding sleeve and communicating with the inner cavity of the sliding sleeve, and both the first air inlet and the second air inlet being connected to an air pump.

[0005] Furthermore, the fixing sleeve is threadedly connected to the main body.

[0006] Furthermore, a sealing ring installed on the sliding sleeve is provided between the main bodies of the sliding sleeve.

[0007] Furthermore, the top of the sliding sleeve is provided with a vent pipe coaxial with the sliding sleeve, the vent pipe being connected to the second air inlet and the inner cavity of the sliding sleeve.

[0008] Furthermore, the main body is provided with a sliding cavity that cooperates with the vent pipe.

[0009] Furthermore, a sealing ring is provided between the vent pipe and the sliding cavity, and is fitted onto the vent pipe.

[0010] Furthermore, a sealing ring is provided between the sliding sleeve and the fixed sleeve, with the sealing ring fitted on the sliding sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This application uses air pressure as a power source to push the sliding sleeve to compress the rubber sleeve, causing the rubber ring to deform; the rubber ring and the outer diameter of the steel pipe form a radial seal, which realizes rapid assembly, good sealing performance, pressure holding pressure ≥0.3MPa, improved safety, and can meet the pressure holding requirement within 3 minutes. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Main body; 11. First air inlet; 12. Second air inlet; 13. Vent pipe; 2. Sliding sleeve; 3. Fixed sleeve; 4. Rubber sleeve; 5. Steel pipe. Detailed Implementation

[0014] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] A rapid pressure testing fixture for intercooler steel pipes includes a main body 1, a fixed sleeve 3 installed at the lower end of the main body 1, a sliding sleeve 2 that slides within the main body 1 and the fixed sleeve 3, and a rubber sleeve 4 disposed between the lower end face of the sliding sleeve 2 and the fixed sleeve 3. The upper part of the side of the main body 1 is provided with a first air inlet and a second air inlet. The first air inlet communicates with the space formed between the main body 1 and the sliding sleeve 2, and the second air inlet passes through the sliding sleeve 2 and communicates with the inner cavity of the sliding sleeve 2. Both the first air inlet and the second air inlet are connected to an air pump.

[0016] Preferably, the fixing sleeve 3 is threadedly connected to the main body 1.

[0017] Preferably, a sealing ring is provided between the sliding sleeve 2 and the main body 1, and the sealing ring is installed on the sliding sleeve 2.

[0018] Preferably, the top of the sliding sleeve 2 is provided with a vent pipe coaxial with the sliding sleeve 2, the vent pipe is connected to the second air inlet and the inner cavity of the sliding sleeve 2.

[0019] Preferably, the main body 1 has a sliding cavity that cooperates with the vent pipe.

[0020] Preferably, a sealing ring is provided between the vent pipe 13 and the sliding cavity, and the sealing ring is sleeved on the vent pipe 13.

[0021] Preferably, a sealing ring is provided between the sliding sleeve 2 and the fixed sleeve 3, and the sealing ring is fitted on the sliding sleeve 2.

[0022] When in use, the quick pressure test tool of the utility model is crimped onto the orifice of the steel pipe, soapy water is applied to the weld position of the steel pipe, the start key is pressed, high-pressure gas first enters the device through the air inlet 11, the sliding sleeve 2 is pushed to move downward under the action of air pressure, and the rubber sleeve 4 deforms; a radial seal is formed between the rubber sleeve 4 and the steel pipe to further lock the steel pipe. Press the inflation key, and the pressure test gas enters the interior of the steel pipe through the second air inlet via the vent pipe 13 for pressurization. After reaching the test pressure, observe whether there are bubbles emerging at the weld position of the steel pipe; the steel pipe is qualified if no bubbles emerge.

[0023] The embodiments of the utility model are presented for the purpose of illustration and description, and are not intended to be exhaustive or to limit the utility model to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the utility model, and to enable those of ordinary skill in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific applications.

Claims

1. A rapid pressure testing fixture for intercooler steel pipes, characterized in that, It includes a main body (1), a fixed sleeve (3) installed at the lower end of the main body (1), a sliding sleeve (2) that slides within the main body (1) and the fixed sleeve (3), and a rubber sleeve (4) located between the lower end face of the sliding sleeve (2) and the fixed sleeve (3); the upper part of the side of the main body (1) is provided with a first air inlet (11) and a second air inlet (12), the first air inlet (11) communicates with the space formed between the main body (1) and the sliding sleeve (2), the second air inlet (12) passes through the sliding sleeve (2) and communicates with the inner cavity of the sliding sleeve (2), and both the first air inlet (11) and the second air inlet (12) are connected to an air pump.

2. The rapid pressure testing fixture for intercooler steel pipes according to claim 1, characterized in that, The fixing sleeve (3) is threadedly connected to the main body (1).

3. The rapid pressure testing fixture for intercooler steel pipes according to claim 1, characterized in that, A sealing ring is provided between the sliding sleeve (2) and the main body (1) and installed on the sliding sleeve (2).

4. The rapid pressure testing fixture for intercooler steel pipes according to claim 1, characterized in that, The top of the sliding sleeve (2) is provided with a vent pipe (13) coaxial with the sliding sleeve (2). The vent pipe (13) is connected to the second air inlet (12) and to the inner cavity of the sliding sleeve (2).

5. The rapid pressure testing fixture for intercooler steel pipes according to claim 4, characterized in that, The main body (1) is provided with a sliding cavity that cooperates with the vent pipe (13).

6. The rapid pressure testing fixture for intercooler steel pipes according to claim 4, characterized in that, A sealing ring is provided between the vent pipe (13) and the sliding cavity, and is fitted on the vent pipe (13).

7. The rapid pressure testing fixture for intercooler steel pipes according to claim 4, characterized in that, A sealing ring is provided between the sliding sleeve (2) and the fixed sleeve (3), and the sealing ring is fitted on the sliding sleeve (2).

Images