CN218239244U

CN218239244U - Air tightness detection tool

Info

Publication number: CN218239244U
Application number: CN202222543598.1U
Authority: CN
Inventors: 阳铁; 张海伟; 成世兴; 李超
Original assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Current assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-01-06
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to a boats and ships technical field discloses an air tightness detects frock. The air tightness detection tool comprises a switching pipe, a connecting pipe, a switch valve, a pressure meter and a pressure release valve. One end of the adapter tube is provided with a first thread structure, the first thread structure is an internal thread arranged on the inner wall of the adapter tube or an external thread arranged on the outer wall of the adapter tube, and the adapter tube is connected with the bulkhead of the cabin to be detected through the first thread structure; one end of the connecting pipe is communicated with the other end of the switching pipe, and the other end of the connecting pipe is used for being connected with an air source; the switch valve is arranged on the connecting pipe and can control the connection and disconnection of the connecting pipe; the pressure gauge is arranged on the connecting pipe and positioned between the switch valve and the adapter pipe so as to detect the air pressure of the cabin to be detected. The utility model discloses simplify the operation process that the gas tightness detected, do benefit to and improve detection efficiency, reduce the detection cost, and the gas tightness detects the frock and can reuse, has reduced the maintenance cost.

Description

Air tightness detection tool

Technical Field

The utility model relates to a boats and ships technical field especially relates to an air tightness detects frock.

Background

In the ship repairing and manufacturing process, the air tightness of the closed cabin of the ship body structure needs to be detected. Usually, a manhole cover plate special for the tool needs to be manufactured again, a through hole is formed in the cover plate, one end of the air compressing tool is welded on the manhole cover plate through the through hole, the air compressing tool is inflated and pressurized in a sealed cabin to be detected, when the pressurization reaches a certain specified value, a switch valve on the air compressing tool is closed, a constant pressure state is kept for more than 3 hours, and the air tightness detection of the cabin is completed. According to the scheme, the manhole cover plate needs to be manufactured again, so that the cost is high; moreover, when the air tightness is detected, the original manhole cover needs to be detached firstly, then the manhole cover plate for the tool needs to be installed, and after the detection is completed, the air compressing tool needs to be cut off from the cover plate for the tool, so that the process is complicated, the detection efficiency is low, the labor cost and the time cost are high, the damage to the cover plate for the tool is easily caused, the recycling is not convenient, and the maintenance cost is high.

Based on this, a tool for detecting air tightness is needed to solve the above mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas tightness detects frock simplifies the operation process that the gas tightness detected, does benefit to and improves detection efficiency, reduces the detection cost, and the gas tightness detects frock can reuse, has reduced the maintenance cost.

To achieve the purpose, the utility model adopts the following technical proposal:

gas tightness detects frock includes:

the first thread structure is internal threads arranged on the inner wall of the adapter tube or external threads arranged on the outer wall of the adapter tube, and the adapter tube is connected with the cabin wall of the cabin to be detected through the first thread structure;

one end of the connecting pipe is communicated with the other end of the switching pipe, and the other end of the connecting pipe is used for being connected with an air source;

the switch valve is arranged on the connecting pipe and can control the connection and disconnection of the connecting pipe;

and the pressure gauge is arranged on the connecting pipe and positioned between the switch valve and the adapter pipe so as to detect the air pressure of the cabin to be detected.

As an optional technical scheme of the gas tightness detection tool, the gas tightness detection tool further comprises a pressure release valve, the pressure release valve is arranged on the connecting pipe and located between the switching valve and the adapter pipe, and when the pressure in the cabin to be detected is larger than or equal to the pressure threshold value of the pressure release valve, gas in the cabin to be detected can be discharged through the pressure release valve.

As an optional technical scheme of the air tightness detection tool, the connecting pipe comprises a three-way pipe and a round pipe, the first end of the three-way pipe is detachably connected with the adapter pipe, the second end of the three-way pipe is connected with the round pipe, the third end of the three-way pipe is connected with the pressure relief valve, and the switch valve is arranged on the round pipe.

As an optional technical scheme of the air tightness detection tool, two pressure gauges are arranged.

As an optional technical scheme of the air tightness detection tool, the connecting pipe comprises a three-way pipe and a round pipe, a first end of the three-way pipe is connected with the adapter pipe, and a second end of the three-way pipe is connected with the round pipe; one pressure gauge is arranged on the three-way pipe, and the other pressure gauge is arranged on the circular pipe.

As an optional technical scheme of the air tightness detection tool, the connecting pipe is detachably connected with the adapter pipe.

As an optional technical scheme of the air tightness detection tool, the adapter tube is used for being connected one end of the connecting tube is provided with a second thread structure, the second thread structure is arranged on an inner thread of the adapter tube or an outer thread of the adapter tube, and the adapter tube is in threaded connection with the connecting tube.

As an optional technical scheme of the air tightness detection tool, the pressure gauge is detachably connected with the connecting pipe.

As an optional technical scheme of the air tightness detection tool, one end, far away from the adapter tube, of the connecting tube is coaxially connected with an air receiving tube, and an external thread is arranged on the outer side wall of the air receiving tube.

As an optional technical scheme of the air tightness detection tool, a limiting ring is convexly arranged on the outer side wall of one end, connected with the air receiving pipe, of the connecting pipe, and the limiting ring is larger than the outer diameter of the air receiving pipe along the radial width of the connecting pipe.

The utility model has the advantages that:

the utility model provides an air tightness detection tool, it includes switching pipe, connecting pipe, ooff valve and manometer. The adapter tube is in threaded connection with an air vent or an air vent pipe on the cabin wall of the cabin to be detected through a first threaded structure, the air source can inflate the cabin to be detected through the connecting pipe and the adapter tube, when the pressure gauge displays that the pressure of the cabin to be detected reaches the detection air pressure, the connecting pipe is cut off through the switch valve, and air tightness is detected. The utility model provides an air tightness detects frock, simple structure and be convenient for and wait to detect air vent or breather pipe on the bulkhead in cabin and be connected, easy dismounting has avoided making the manhole cover again, reduces the detection cost, has also simplified the process that the air tightness detected, does benefit to and improves detection efficiency, has improved the practicality, also guarantees that the air tightness detects frock can reuse, has reduced the maintenance cost.

Drawings

Fig. 1 is a schematic structural diagram of an air tightness detection tool provided by an embodiment of the present invention;

fig. 2 is an exploded view of the air tightness detection tool provided by the embodiment of the present invention.

In the figure:

1. a transfer tube; 2. a connecting pipe; 21. a three-way pipe; 22. a circular tube; 23. a limiting ring;

3. an on-off valve; 4. a pressure gauge; 41. a joint; 5. a pressure relief valve; 6. a gas receiving pipe.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The embodiment provides an air tightness detection tool. Specifically, as shown in fig. 1-2, the air tightness detection tool comprises an adapter tube 1, a connecting tube 2, a switch valve 3 and a pressure gauge 4. One end of the adapter tube 1 is provided with a first thread structure, the first thread structure is an internal thread arranged on the inner wall of the adapter tube 1 or an external thread arranged on the outer wall of the adapter tube 1, and the adapter tube 1 is in threaded connection with the bulkhead of the cabin to be detected through the first thread structure; one end of the connecting pipe 2 is communicated with the other end of the switching pipe 1, and the other end of the connecting pipe 2 is used for being connected with an air source; the switch valve 3 is arranged on the connecting pipe 2 and can control the connection and disconnection of the connecting pipe 2; the pressure gauge 4 is arranged on the connecting pipe 2 and is positioned between the switch valve 3 and the adapter pipe 1 so as to detect the air pressure of the cabin to be detected.

The gas tightness that this embodiment provided detects frock, it includes adapter tube 1, connecting pipe 2, ooff valve 3 and manometer 4. Adapter tube 1 is through first helicitic texture with wait to detect the air vent or breather pipe threaded connection on the bulkhead of cabin, and the air supply can be through connecting pipe 2 and adapter tube 1 to waiting to detect the cabin and aerify, when manometer 4 shows that the pressure of waiting to detect the cabin reaches and detects atmospheric pressure, cuts off connecting pipe 2 through ooff valve 3 to the detection of gas tightness. The gas tightness that this embodiment provided detects frock, simple structure and be convenient for with wait to detect the air vent or the breather pipe on the bulkhead in cabin and be connected, easy dismounting has avoided making the manhole cover again, reduces the detection cost, has also simplified the process that the gas tightness detected, does benefit to and improves detection efficiency, has improved the practicality, also guarantees that the gas tightness detects frock can reuse, has reduced the maintenance cost.

Generally, in the prior art, the walls of the closed compartments are provided with vent holes or vent pipes, the walls of the vent holes are provided with internal threads, and the outer walls of the vent pipes are provided with external threads for ventilation of the compartments. The cabin to be detected is a closed cabin.

It can be understood that when the bulkhead of the detection cabin is provided with the vent hole, the first thread structure is an external thread arranged on the outer wall of the adapter tube 1; when being provided with the breather pipe on the bulkhead of detection cabin, first helicitic texture is the internal thread that sets up on adapter tube 1 inner wall.

As preferred scheme, the gas tightness detects frock still includes relief valve 5, and relief valve 5 is arranged in on connecting pipe 2 and is located between ooff valve 3 and the adapter tube 1, when treating the pressure threshold value that detects the interior pressure of cabin more than or equal to relief valve 5, treats that the gas in cabin can discharge through relief valve 5. If wait to detect when the atmospheric pressure of the cabin is greater than or equal to the pressure threshold value of relief valve 5, the gas that waits to detect the cabin can be discharged through relief valve 5, when keeping certain atmospheric pressure in waiting to detect the cabin, the atmospheric pressure of having avoided waiting to detect the cabin is too big again, the reliability of gas tightness testing result has been guaranteed, the possibility of waiting to detect cabin interior bulkhead deformation has been reduced, the condition of waiting to detect the cabin explosion has also been avoided taking place, the possibility of manometer 4 damage that the atmospheric pressure leads to too big has been avoided simultaneously, thereby the maintenance cost is reduced, the security of detection has been guaranteed, and the practicability is also improved.

In the present embodiment, the pressure threshold of the relief valve 5 is the same as the maximum value of the range of the pressure gauge 4.

Preferably, the connecting pipe 2 comprises a three-way pipe 21 and a circular pipe 22, a first end of the three-way pipe 21 is connected with the adapter pipe 1, a second end of the three-way pipe 21 is connected with the circular pipe 22, a third end of the three-way pipe 21 is connected with the pressure relief valve 5, and the switch valve 3 is arranged on the circular pipe 22. The three-way pipe 21 is arranged, so that the connection structure among the pressure release valve 5, the adapter pipe 1 and the connecting pipe 2 is simplified, and the assembly is facilitated.

In this embodiment, the outer side wall of the air inlet end of the pressure relief valve 5 is provided with an external thread, and the inner side wall of the third end of the three-way pipe 21 is provided with an internal thread, so as to realize the threaded connection between the pressure relief valve 5 and the three-way pipe 21. The type and specific structure of the pressure relief valve 5 can be referred to in the prior art, and are not described in detail herein.

Further, the second end of the tee 21 and the tube 22 may be welded or glued, but not limited thereto.

Preferably, manometer 4 is provided with two, and two manometer 4 all set up between ooff valve 3 and adapter tube 1, and two manometer 4 homoenergetic detect wait to detect the pressure in the cabin, and when two manometer 4's registration is different, all detect and calibrate two manometer 4 promptly, guarantee the accuracy of the result that the gas tightness detected.

In other embodiments, three or more pressure gauges 4 may be provided, which is not limited herein.

Specifically, on a manometer 4 arranged three-way pipe 21 in, on another manometer 4 arranged pipe 22 in, avoided connecting two manometer 4 on three-way pipe 21 or pipe 22 simultaneously, guaranteed that every manometer 4 all has sufficient installation space and observation space, the equipment of being convenient for has also guaranteed the convenience of use.

Preferably, the pressure gauge 4 is detachably connected to the connection tube 2. Can change the manometer 4 of different ranges according to the gas tightness detection demand of difference, further improve the practicality, also be convenient for when manometer 4 damages, the manometer 4 of renewal has reduced the detection cost.

In this embodiment, the three-way pipe 21 is provided with a joint 41, and the joint 41 is tubular and communicates with the inner cavity of the three-way pipe 21. The inner wall of the joint 41 is provided with internal threads, the outer part of the detection end of the pressure gauge 4 is provided with external threads, the pressure gauge 4 is in threaded connection with the joint 41, and detachable connection between the pressure gauge 4 and the three-way pipe 21 is achieved. The round tube 22 is also detachably connected with the pressure gauge 4 through a joint 41.

In other embodiments, the connection tube 2 may also be detachably connected to the pressure gauge 4 through a snap structure or other structures, which are not limited herein.

Further, connecting pipe 2 can be dismantled with switching pipe 1 and be connected, can change different switching pipes 1 according to the aperture of the air vent of difference or the pipe diameter of breather pipe, has improved the practicality, has enlarged application scope again, only changes different switching pipes 1 and can be applicable to the difference and wait to detect the cabin, does benefit to and reduces the detection cost.

Specifically, the one end that adapter tube 1 is used for connecting pipe 2 is provided with second helicitic texture, and second helicitic texture is the internal thread that sets up on adapter tube 1 inner wall or sets up the external screw thread on adapter tube 1 outer wall, adapter tube 1 and connecting pipe 2 threaded connection. Set up second helicitic texture, switching pipe 1 can be direct with 2 threaded connection of connecting pipe, has simplified the connection structure between switching pipe 1 and the connecting pipe 2, and easy dismounting has simplified the installation, and convenient to use has improved the practicality.

Specifically, the first end of the three-way pipe 21 is detachably connected with the adapter pipe 1 through a second thread structure. It can be understood that when the second thread structure is an external thread arranged on the outer wall of the adapter tube 1, an internal thread is arranged on the inner side wall of the first end of the three-way tube 21; when the second thread structure is the internal thread that sets up on adapter tube 1 inner wall, be provided with the external screw thread on the lateral wall of the first end of three-way pipe 21.

In other embodiments, the connection tube 2 and the adapter tube 1 may be detachably connected by a structure such as a snap, which is not limited herein.

Preferably, the one end coaxial coupling that adapter tube 1 was kept away from to connecting pipe 2 has trachea 6, is provided with the external screw thread on the lateral wall of trachea 6. The tip of the outlet duct of air supply has the internal thread usually, connects and sets up the external screw thread on the trachea 6, can directly be connected with the outlet duct of air supply, has simplified the joining process, and the equipment of being convenient for has also guaranteed the convenience of use.

Further, the outer side wall of one end of the connecting pipe 2 connected with the air receiving pipe 6 is convexly provided with a limiting ring 23, and the limiting ring 23 is larger than the outer diameter of the air receiving pipe 6 along the radial width of the connecting pipe 2. Set up spacing ring 23, can restrict the outlet duct of air supply and this gas tightness and detect the connection size between the frock, be convenient for connect trachea 6 and outlet duct after accomplishing to detect alternate segregation.

In this embodiment, the connecting tube 2 and the stop ring 23 may be welded or integrally formed.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Gas tightness detects frock, its characterized in that includes:

the device comprises an adapter tube (1), wherein one end of the adapter tube is provided with a first thread structure, the first thread structure is an internal thread arranged on the inner wall of the adapter tube (1) or an external thread arranged on the outer wall of the adapter tube (1), and the adapter tube (1) is in threaded connection with the bulkhead of a cabin to be detected through the first thread structure;

one end of the connecting pipe (2) is communicated with the other end of the adapter pipe (1), and the other end of the connecting pipe (2) is used for being connected with an air source;

the switch valve (3) is arranged on the connecting pipe (2) and can control the connection and disconnection of the connecting pipe (2);

and the pressure gauge (4) is arranged on the connecting pipe (2) and is positioned between the switch valve (3) and the adapter pipe (1) so as to detect the air pressure of the cabin to be detected.

2. The gas tightness detection tool according to claim 1, further comprising a pressure release valve (5), wherein the pressure release valve (5) is arranged on the connecting pipe (2) and located between the switching valve (3) and the adapter pipe (1), and when the pressure in the cabin to be detected is greater than or equal to the pressure threshold of the pressure release valve (5), the gas in the cabin to be detected can be discharged through the pressure release valve (5).

3. The airtightness detection tool according to claim 2, wherein the connecting pipe (2) comprises a three-way pipe (21) and a circular pipe (22), a first end of the three-way pipe (21) is connected with the adapter pipe (1), a second end of the three-way pipe (21) is connected with the circular pipe (22), a third end of the three-way pipe (21) is connected with the pressure relief valve (5), and the switching valve (3) is disposed on the circular pipe (22).

4. The airtightness detection tool according to claim 1, wherein there are two pressure gauges (4).

5. The airtightness detection tool according to claim 4, wherein the connecting pipe (2) comprises a three-way pipe (21) and a round pipe (22), a first end of the three-way pipe (21) is connected with the adapter pipe (1), and a second end of the three-way pipe (21) is connected with the round pipe (22);

one pressure gauge (4) is arranged on the three-way pipe (21), and the other pressure gauge (4) is arranged on the circular pipe (22).

6. The airtightness detection tool according to claim 1, wherein the connection pipe (2) is detachably connected to the adapter pipe (1).

7. The airtightness detection tool according to claim 6, wherein a second thread structure is provided at one end of the adapter tube (1) for connecting the connection tube (2), the second thread structure is an internal thread provided on an inner wall of the adapter tube (1) or an external thread provided on an outer wall of the adapter tube (1), and the adapter tube (1) is in threaded connection with the connection tube (2).

8. The airtightness detection tool according to claim 1, wherein the pressure gauge (4) is detachably connected to the connection pipe (2).

9. The airtightness detection tool according to claim 1, wherein an air receiving pipe (6) is coaxially connected to one end, far away from the adapter pipe (1), of the connecting pipe (2), and an external thread is arranged on an outer side wall of the air receiving pipe (6).

10. The airtightness detection tool according to claim 9, wherein a limiting ring (23) is provided in a protruding manner on an outer side wall of one end of the connection pipe (2) connected to the air receiving pipe (6), and a width of the limiting ring (23) along a radial direction of the connection pipe (2) is larger than an outer diameter of the air receiving pipe (6).