Air tightness detection device for stainless steel socket welding pipe fitting

By designing an airtightness testing device for stainless steel socket weld pipe fittings and utilizing a positioning and leakage location display mechanism, the problem of not being able to directly display the leakage location in existing technologies has been solved, thus achieving efficient airtightness testing.

CN224019240UActive Publication Date: 2026-03-20SHANDONG XINJIE STAINLESS STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing stainless steel pipe fitting air tightness testing devices cannot directly display the location of leaks, requiring each one to be checked individually, resulting in low testing efficiency.

Method used

An airtightness testing device for stainless steel socket weld pipe fittings was designed, comprising a positioning mechanism, a leakage location display mechanism, and an airtightness testing mechanism. The positioning mechanism positions the pipe fitting, the leakage location display mechanism displays the leakage location, and the airtightness testing mechanism performs the test.

Benefits of technology

It enables airtightness testing of stainless steel socket weld pipe fittings, directly displaying the location of leaks and improving testing efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a stainless steel socket welded pipe fitting air tightness detection device, which comprises a placing groove and a positioning block, one side of the inner wall of the placing groove is movably connected with a positioning mechanism, the upper surface of the positioning mechanism is fixedly provided with an air leakage position display mechanism, the positioning block is fixedly arranged on one side of the outer wall of the placing groove, and the air leakage position display mechanism is fixedly arranged on the outer wall of the placing groove. And an air tightness detection mechanism is fixedly mounted on one side of the outer wall of the positioning block. According to the air tightness detection device for the stainless steel socket welding pipe fitting, the air tightness detection mechanism is arranged in a matched manner through the positioning mechanism, so that air tightness detection can be performed on the interior of the stainless steel socket welding pipe fitting, and meanwhile, the position of the stainless steel socket welding pipe fitting can be positioned; therefore, airtightness detection can be stably carried out on the stainless steel socket welding pipe fitting.
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Description

TECHNICAL FIELD

[0001] The utility model relates to stainless steel pipe production related technical field, concretely is a kind of stainless steel socket welding pipe fitting air tightness detection device. BACKGROUND

[0002] Stainless steel pipe fitting belongs to one kind of pipe fitting, it is made of stainless steel material so it is called stainless steel pipe fitting, it includes: stainless steel elbow, stainless steel tee, stainless steel cross, stainless steel reducing pipe, stainless steel pipe cap etc., according to the coupling method can be divided into socket stainless steel pipe fitting, threaded stainless steel pipe fitting, flange stainless steel pipe fitting and welded stainless steel pipe fitting four categories.Stainless steel elbow is used in the place of pipe fitting turning; flange is used to make the part of pipe and pipe interconnect, the current stainless steel pipe fitting needs to detect its air tightness when producing, but when detecting the air tightness of stainless steel pipe fitting, the position of air leakage cannot be directly displayed, for this purpose, a kind of stainless steel socket welding pipe fitting air tightness detection device is proposed.

[0003] The air tightness detection device currently used cannot directly display the position of poor air tightness of stainless steel socket welding pipe fitting when detecting the air tightness of stainless steel socket welding pipe fitting, and different positions of stainless steel socket welding pipe fitting need to be checked one by one. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of stainless steel socket welding pipe fitting air tightness detection device to solve the problem that the air tightness detection device currently used cannot directly display the position of poor air tightness of stainless steel socket welding pipe fitting when detecting the air tightness of stainless steel socket welding pipe fitting in the above background art, and different positions of stainless steel socket welding pipe fitting need to be checked one by one.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of stainless steel socket welding pipe fitting air tightness detection device, including placing groove and locating block, the inner wall side of placing groove is movably connected with positioning mechanism, the upper surface of positioning mechanism is fixedly installed with air leakage position display mechanism, the outer wall side of locating block is fixedly installed in the outer wall side of placing groove, the outer wall side of locating block is fixedly installed with air tightness detection mechanism.

[0006] Preferably, the positioning mechanism includes a connecting shaft, an L-shaped block, a connecting rod, and a sealing gasket, the connecting shaft is movably connected to the inner wall side of the placing groove, the L-shaped block is welded to the outer wall side of the connecting shaft, the connecting rod is fixedly connected to the inner wall of the L-shaped block, and the sealing gasket is adhesively mounted to the outer wall side of the connecting rod.

[0007] Preferably, the air leakage position display mechanism comprises an arc-shaped block, an opening and a display plate, the arc-shaped block is welded on the upper surface of the L-shaped block, the opening is arranged on the inner wall of the arc-shaped block, and the display plate is fixedly arranged on the upper surface of the arc-shaped block.

[0008] Preferably, the display plate is in an arc-shaped structure, and the diameter of the display plate is larger than that of the arc-shaped block.

[0009] Preferably, the air tightness detection mechanism comprises a supporting block, a side connecting block, a fan, a connecting pipe, a feeding port and a plug pipe, the supporting block is fixedly arranged on the outer surface of the positioning block, the side connecting block is connected to one side of the outer wall of the positioning block, the fan is fixedly arranged on one side of the outer wall of the side connecting block, the output end of the fan is provided with the connecting pipe, the feeding port is arranged on the outer wall of the supporting block, and the plug pipe is connected to one side of the outer wall of the connecting pipe.

[0010] Preferably, the feeding port is closed through a threaded connection.

[0011] Compared with the prior art, the air tightness detection device for the stainless steel socket welding pipe has the advantages that:

[0012] 1. The air tightness detection device for the stainless steel socket welding pipe is provided with a positioning mechanism and an air tightness detection mechanism, so that the air tightness of the stainless steel socket welding pipe can be detected, and the position of the stainless steel socket welding pipe can be positioned, thereby ensuring the air tightness detection of the stainless steel socket welding pipe.

[0013] 2. The air tightness detection device for the stainless steel socket welding pipe is provided with an air tightness detection mechanism and an air leakage position display mechanism, so that the position of the stainless steel socket welding pipe with poor air tightness can be detected and directly displayed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a positioning mechanism drawing of the utility model;

[0016] Figure 3 It is an air leakage position display mechanism drawing of the utility model;

[0017] Figure 4 It is an air tightness detection mechanism drawing of the utility model.

[0018] In the figure: 1, the placement groove; 2, positioning mechanism; 201, connecting shaft; 202, L-shaped block; 203, connecting rod; 204, gasket; 3, air leakage position display mechanism; 301, arc block; 302, opening; 303, display plate; 4, positioning block; 5, air tightness detection mechanism; 501, support block; 502, side connecting block; 503, fan; 504, connecting pipe; 505, feed inlet; 506, cannula. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-4 The present application provides a technical solution: a stainless steel socket welding pipe fitting air tightness detection device, which comprises a placement groove 1 and a positioning block 4. The inner wall of the placement groove 1 is movably connected with a positioning mechanism 2. The positioning mechanism 2 comprises a connecting shaft 201, an L-shaped block 202, a connecting rod 203 and a gasket 204. The connecting shaft 201 is movably connected to the inner wall of the placement groove 1. The outer wall of the connecting shaft 201 is welded with the L-shaped block 202. The inner wall of the L-shaped block 202 is fixedly connected with the connecting rod 203. The outer wall of the connecting rod 203 is adhesively connected with the gasket 204. The stainless steel socket welding pipe fitting is placed in the inner wall of the placement groove 1, and at the same time, the stainless steel socket welding pipe fitting is abutted on the outer surface of the cannula 506. The connecting shaft 201 is moved to move in the inner wall of the placement groove 1. In this way, the gasket 204 installed on the outer wall of the connecting rod 203 can seal the other side of the inner surface of the stainless steel socket welding pipe fitting.

[0021] The upper surface of the positioning mechanism 2 is fixedly installed with the air leakage position display mechanism 3, which comprises an arc-shaped block 301, an opening hole 302 and a display plate 303. The arc-shaped block 301 is welded on the upper surface of the L-shaped block 202. The opening holes 302 are formed on the inner wall of the arc-shaped block 301. The display plate 303 is fixedly installed on the upper surface of the arc-shaped block 301. The arc-shaped block 301 covers the upper position of the stainless steel socket welding pipe fitting. In this way, the fluorescent powder can enter from different opening holes 302 and adhere to the position of the display plate 303. In this way, the fluorescent powder at different positions can display the position of the stainless steel socket welding pipe fitting leakage. The display plate 303 is in an arc-shaped structure, and the diameter of the display plate 303 is greater than that of the arc-shaped block 301. In this way, the fluorescent powder can be directly blown from the opening hole 302 to the inner wall of the display plate 303. In this way, the opening angle of the opening hole 302 can be adjusted to display the position of the stainless steel socket welding pipe fitting leakage.

[0022] The positioning block 4 is fixedly installed on the outer wall of the placing groove 1. The airtightness detection mechanism 5 is fixedly installed on the outer wall of the positioning block 4. The airtightness detection mechanism 5 comprises a support block 501, a side connecting block 502, a fan 503, a connecting pipe 504, an inlet 505 and a plug pipe 506. The support block 501 is fixedly installed on the outer surface of the positioning block 4. The side connecting block 502 is connected and installed on the outer wall of the positioning block 4. The fan 503 is fixedly installed on the outer wall of the side connecting block 502. The output end of the fan 503 is provided with the connecting pipe 504. The inlet 505 is formed on the outer wall of the support block 501. The plug pipe 506 is connected and installed on the outer wall of the connecting pipe 504. The fluorescent powder is placed into the plug pipe 506 from the inlet 505. Then the opening of the inlet 505 is closed. The power supply of the fan 503 is turned on. In this way, the air can flow from the inner wall of the plug pipe 506. The fluorescent powder can enter the inner wall of the stainless steel socket welding pipe fitting from the plug pipe 506. At the same time, the side of the stainless steel socket welding pipe fitting is in a sealed state. In this way, the leaked stainless steel socket welding pipe fitting can flow out to the outside of the stainless steel socket welding pipe fitting. The opening of the inlet 505 is closed by means of threaded connection. In this way, the position of the inlet 505 can be sealed to prevent affecting the airtightness detection effect during the detection of the airtightness detection mechanism 5.

[0023] Working principle: first, the device is placed in the designated position, the stainless steel socket welding pipe fittings are placed in the inner wall of the placing groove 1, and the stainless steel socket welding pipe fittings are in contact with the outer surface of the inserting pipe 506. The connecting shaft 201 is moved to move in the inner wall of the placing groove 1, so that the sealing pad 204 installed on the outer wall of the connecting rod 203 can seal the other side of the inner surface of the stainless steel socket welding pipe fittings. The fluorescent powder is placed into the inserting pipe 506 from the feeding port 505, and the opening of the feeding port 505 is closed. The power of the fan 503 is turned on, so that air can flow from the inner wall of the inserting pipe 506, and the fluorescent powder can enter the inner wall of the stainless steel socket welding pipe fittings from the inserting pipe 506. The side of the stainless steel socket welding pipe fittings is in a sealed state, so that the leaked stainless steel socket welding pipe fittings can flow out of the stainless steel socket welding pipe fittings. The arc-shaped block 301 covers the upper position of the stainless steel socket welding pipe fittings, so that the fluorescent powder can enter from the different opening holes 302 and adhere to the position of the display plate 303. The fluorescent powder at different positions can display the position of the stainless steel socket welding pipe fittings leakage, so that the operation process of the stainless steel socket welding pipe fittings air tightness detection device is completed.

[0024] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for testing the airtightness of stainless steel socket weld pipe fittings, characterized in that, It includes a placement groove (1) and a positioning block (4). A positioning mechanism (2) is movably connected to one side of the inner wall of the placement groove (1). A leakage position display mechanism (3) is fixedly installed on the upper surface of the positioning mechanism (2). The positioning block (4) is fixedly installed on one side of the outer wall of the placement groove (1). An air tightness detection mechanism (5) is fixedly installed on one side of the outer wall of the positioning block (4).

2. The airtightness testing device for stainless steel socket weld pipe fittings according to claim 1, characterized in that: The positioning mechanism (2) includes a connecting shaft (201), an L-shaped block (202), a connecting rod (203), and a sealing gasket (204). The connecting shaft (201) is movably connected to one side of the inner wall of the placement groove (1). An L-shaped block (202) is welded and installed on one side of the outer wall of the connecting shaft (201). A connecting rod (203) is fixedly connected to the upper part of the inner wall of the L-shaped block (202). A sealing gasket (204) is bonded and installed on one side of the outer wall of the connecting rod (203).

3. The airtightness testing device for stainless steel socket weld pipe fittings according to claim 2, characterized in that: The air leakage location display mechanism (3) includes an arc-shaped block (301), an opening hole (302), and a display panel (303). The arc-shaped block (301) is welded and installed on the upper surface of the L-shaped block (202). The opening hole (302) is provided on both sides of the lower inner wall of the arc-shaped block (301). The display panel (303) is fixedly installed on the upper surface of the arc-shaped block (301).

4. The airtightness testing device for stainless steel socket weld pipe fittings according to claim 3, characterized in that: The display panel (303) is arranged in an arc shape, and the diameter of the display panel (303) is larger than the diameter of the arc block (301).

5. The airtightness testing device for stainless steel socket weld pipe fittings according to claim 1, characterized in that: The airtightness testing mechanism (5) includes a support block (501), a side connecting block (502), a fan (503), a connecting pipe (504), a feed inlet (505), and a insertion pipe (506). The support block (501) is fixedly installed on the outer surface of the positioning block (4). The side connecting block (502) is connected to one side of the outer wall of the positioning block (4). The fan (503) is fixedly installed on one side of the outer wall of the side connecting block (502). The output end of the fan (503) is provided with a connecting pipe (504). The feed inlet (505) is opened on the upper part of the outer wall of the support block (501). The insertion pipe (506) is connected to one side of the outer wall of the connecting pipe (504).

6. The airtightness testing device for stainless steel socket weld pipe fittings according to claim 5, characterized in that: The opening of the feed inlet (505) is closed by a threaded connection.