CN216050526U

CN216050526U - Air tightness detection tool for small valve

Info

Publication number: CN216050526U
Application number: CN202122363780.4U
Authority: CN
Inventors: 朱新如; 袁泉; 傅海燕
Original assignee: Bip Palo Luo Jiangsu Engineering Technology Co ltd
Current assignee: Bip Palo Luo Jiangsu Engineering Technology Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-03-15
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses an air tightness detection tool for a small valve, which comprises a water tank, a pressure gauge, an air bag and a workbench for fixedly installing a detected valve, wherein the pressure gauge and the detected valve are connected with an air pipe I together, the workbench is horizontally arranged in the water tank, the water tank is filled with water, the height of the water in the water tank is lower than that of the workbench, the air bag is horizontally arranged on one side of the bottom in the water tank, and the air bag is connected with an air pipe II. The utility model greatly reduces the usage amount of water, effectively reduces the detection input cost, and has the advantages of flexible structure, convenient operation and high detection accuracy.

Description

Air tightness detection tool for small valve

Technical Field

The utility model relates to the technical field of valves, in particular to an air tightness detection tool for a small valve.

Background

The valve is formed by casting and cutting processes, and because the cast valve has the defects of air holes and sand holes, the leak detection of gas pressurization bubble inspection, which is called gas pressurization water inspection for short, is required to be carried out before the valve core is assembled after the valve is formed by cutting.

At present, a water tank is generally assembled by a multipurpose large bracket to form a water chamber for immersion type leak detection, but the method is not suitable for general leak detection of various valves.

In order to solve the problems, the Chinese patent, publication No. CN213956685U, discloses a valve airtightness detection device, which' comprises a water tank, wherein an air inlet pipe is arranged in the water tank, the outer end of the air inlet pipe is connected with an air pump, and a valve fixing mechanism is arranged at the inner end of the air inlet pipe; the valve sealing mechanism comprises a push rod and a pressing plate, wherein the pressing plate is arranged at the inner end of the push rod, tightly presses a flange at the outlet end of the valve through the pressing plate, and seals the outlet of the valve through the pressing plate; and a gas pressure sensor is arranged at the right end of the gas inlet pipe, and is externally connected with a display. Although the leak hunting problem of different model valves has been solved to this prior art, still there is the technical problem that the structure is loaded down with trivial details, the operation is complicated, and the water waste is serious, and it is with great costs to detect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an air tightness detection tool for a small valve, and the air tightness detection tool is used for solving the technical problems that the existing air tightness detection tool for the valve, which is provided by the background art, is complicated in structure and operation, and has serious water resource waste and high detection cost in the air pressure water detection process.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a gas tightness detection tool for a small valve comprises a water tank, a pressure gauge, an air bag and a workbench for fixedly installing a detected valve, wherein the workbench is a table-type workbench, the workbench is horizontally arranged inside the water tank, water is filled inside the water tank, the height of the water inside the water tank is lower than the table top of the workbench, a water discharge screw plug is radially arranged at the bottom of the side wall of the water tank, a pressure gauge installation plate is vertically fixed above one side of the water tank, the pressure gauge is vertically arranged on the surface of the pressure gauge installation plate, the pressure gauge and the detected valve are jointly connected with an air pipe I, the air pipe I comprises a main air pipe in an L-shaped structure and a branch air pipe integrally arranged with the main air pipe, the main air pipe is provided with a vertical part and a horizontal part, and the end part of the vertical part of the main air pipe penetrates through the table top of the workbench to be connected with the bottom of the detected valve, the utility model discloses a platform of workstation, including main tracheal horizontal part, gasbag, air pump II, gasbag, air pump I, trachea II, gasbag, air pump II, trachea I, trachea II's the other end stretches out the water tank and is connected with air pump I, the branch trachea is formed to the branching that makes progress in main tracheal horizontal part middle part, the bronchus links to each other with the bottom of manometer, the gasbag level is laid in bottom one side of water tank inside, the gasbag is located the below of the mesa of workstation, the gasbag is connected with trachea II that is the level setting, the one end of trachea II links to each other with the gasbag, trachea II's the other end stretches out the water tank and is connected with air pump II.

The side wall of the water tank is provided with a through hole I for the horizontal part of the main air pipe to pass through, the table top of the workbench is provided with a through hole II for the vertical part of the main air pipe to pass through, and the side wall of the water tank is provided with a through hole III for the air supply pipe II to pass through.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the height of water in the water tank before detection is lower than the table top of the workbench, and the air bag occupies space in the water tank when inflated and expanded during detection, so that compared with the existing direct immersion detection, the water consumption is greatly reduced, and the detection investment cost is effectively reduced; meanwhile, only by utilizing the matching of the air bag and the workbench, the valve to be detected can be immersed in water even if the valve to be detected is not moved, the structure is flexible, the operation is convenient, and the detection accuracy is high;

2. in the utility model, the integrated air pipe I consisting of the main air pipe and the branch air pipe is matched with the pressure gauge, so that the air input of the air pipe I is reasonably adjusted, and when the reading of the pressure gauge reaches a required test pressure value, the air input can be closed;

3. according to the utility model, water after multiple uses in the water tank can be conveniently discharged only by disassembling the screw plug on the side wall of the water tank, so that the use convenience of the tool is further improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of a trachea I of the present invention;

FIG. 3 is a side view of FIG. 1;

in the figure: 1. manometer, 2, water tank, 3, workstation, 31, mesa, 4, trachea I, 41, main trachea, 411, horizontal part, 412, vertical portion, 42, bronchus, 5, air pump I, 6, gasbag, 7, trachea II, 8, air pump II, 9, the valve that is detected, 10, through-hole I, 11, through-hole II, 12, through-hole III, 13, manometer mounting panel, 14, drainage plug screw.

Detailed Description

The technical scheme of the utility model is clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 to 3, which illustrate an air tightness detection tool for a small valve, comprising a water tank 2, a pressure gauge mounting plate 13 vertically connected above one side of the water tank 2, a pressure gauge 1 vertically mounted on the surface of the pressure gauge mounting plate 13, a table-type workbench 3 horizontally arranged inside the water tank 2, a table top 31 horizontally formed on the top of the workbench 3, a detected valve 9 fixedly mounted on the table top 31 of the workbench 3, the pressure gauge 1 and the detected valve 9 are commonly connected with an air pipe i 4, the air pipe i 4 comprises a main air pipe 41 and a branch air pipe 42 integrally arranged, the main air pipe 41 is in an L-shaped structure, the main air pipe 41 is provided with a horizontal part 411 and a vertical part 412, the end of the vertical part 412 passes through the table top 31 of the workbench 3 to be connected with the bottom of the detected valve 9, the end of the horizontal part 411 extends out of the water tank to be connected with an air pump i 5, the middle of the horizontal part 411 is upwardly formed into a branch air pipe 42, the bronchus 42 is connected with the bottom of the pressure gauge 1, the water is filled in the water tank 2, and the height of the water in the water tank 2 is lower than the table-board 31 of the workbench 3; wherein, the side wall of the water tank 2 is provided with a through hole I10 matched with the horizontal part 411 of the main air pipe 41, and the table surface 31 of the worktable 3 is provided with a through hole II 11 matched with the vertical part 412 of the main air pipe 41;

an air bag 6 is further horizontally arranged on one side of the bottom inside the water tank 2, the air bag 6 is connected with an air pipe II 7 which is horizontally arranged, one end of the air pipe II 7 is connected with the air bag 6, and the other end of the air pipe II 7 extends out of the water tank 2 and is connected with an air pump II 8; wherein, a through hole III 12 matched with the air supply pipe II 7 is arranged on the side wall of the water tank 2;

in addition, a drainage screw plug 14 is radially arranged at the bottom of the side wall of the water tank 2; after the tool is used for a period of time, water in the water tank 2 needs to be replaced, and water in the water tank 2 can be discharged as long as the water discharging screw plug 14 is arranged.

Firstly, installing the detected valve 9 on the table surface 31 of the workbench 3 in the water tank 2; then, compressed air is injected into the inner cavity of the detected valve 9 through the air pipe I4 in cooperation with the air pump I5, and air inlet can be closed when the reading of the pressure gauge 1 reaches a required test pressure value; then, air is injected into the air bag 6 through the air pipe II 7 and the air pump II 8, so that the air bag 6 is expanded, and at the moment, the water in the water tank 2 occupies space due to the expansion of the air bag 6, so that the water level is raised; and finally, when the water surface exceeds the detected valve 9, the air tightness state of the detected valve 9 is judged by observing whether bubbles emerge from the water surface.

Claims

1. The utility model provides an gas tightness detects frock for miniature valve, includes the water tank, its characterized in that still includes manometer, gasbag and is used for fixed mounting to be detected the workstation of valve, manometer and being detected the valve and being connected with trachea I jointly, the workstation level sets up in the inside of water tank, the inside packing of water tank has water, the mesa that highly is less than the workstation of the inside water of water tank, the gasbag level is laid in the inside bottom one side of water tank, the gasbag is connected with trachea II.

2. The air tightness detection tool for the small valve according to claim 1, wherein a pressure gauge mounting plate is vertically fixed above one side of the water tank, and the pressure gauge is vertically mounted on the surface of the pressure gauge mounting plate.

3. The air tightness detection tool for the small valve according to claim 2, wherein the air pipe I comprises a main air pipe in an L-shaped structure, the main air pipe is provided with a vertical part and a horizontal part, the end part of the vertical part of the main air pipe penetrates through the table top of the workbench to be connected with the bottom of the detected valve, the end part of the horizontal part of the main air pipe extends out of the water tank to be connected with an air pump I, the middle part of the horizontal part of the main air pipe is upwards branched to form a branch air pipe, and the branch air pipe is connected with the bottom of the pressure gauge.

4. The airtightness detection tool for the small valve according to claim 3, wherein the main gas pipe and the branch gas pipe are of an integrated structure.

5. The air tightness detection tool for the small valve according to claim 3, wherein a through hole I for a horizontal part of the main air pipe to pass through is formed in the side wall of the water tank, and a through hole II for a vertical part of the main air pipe to pass through is formed in the table top of the workbench.

6. The air tightness detection tool for the small valve according to claim 1, wherein the air pipe II is horizontally arranged, one end of the air pipe II is connected with the air bag, and the other end of the air pipe II extends out of the water tank and is connected with an air pump II.

7. The air tightness detection tool for the miniature valve according to claim 1, wherein a through hole III through which an air supply pipe II passes is formed on a side wall of the water tank.

8. The air tightness detection tool for the small valve according to claim 1, wherein the workbench is a table-type workbench, and a table top of the workbench is positioned above the air bag.

9. The air tightness detection tool for the small valve according to claim 1, wherein a drain plug screw is radially arranged at the bottom of the side wall of the water tank.