CN221685803U - Device leak detection device and device leak detection system - Google Patents

Abstract

The utility model belongs to the technical field of leak detection of structural assemblies, and particularly relates to a device leak detection device and a device leak detection system, wherein the device leak detection device comprises a mounting seat and a fixing ring; the top of the mounting seat is provided with a first mounting hole along the edge, and the middle of the mounting seat is provided with a first cavity; the edge of the fixed ring is provided with a second mounting hole, and the second mounting hole coaxially corresponds to the first mounting hole; a second cavity is arranged in the middle of the fixed ring; a fastener is arranged in the second mounting hole and connected to the first mounting hole; the first cavity and the second cavity are closed to form an accommodating cavity, and the accommodating cavity is used for accommodating a device to be tested; the utility model is compatible with the pressurization mode leakage detection and the vacuumizing mode leakage detection, realizes the purposes of multiple purposes, and has simple structure, convenient use and high leakage detection efficiency compared with a leakage detection instrument on the market.

Description

Device leak detection device and device leak detection system

Technical Field

The utility model belongs to the technical field of structural assembly leakage detection, and in particular relates to a component leakage detection device and a component leakage detection system.

Background Art

For some structural assemblies that require air tightness, for example, a second component is assembled in a mounting hole of a first component through welding, sealing, snapping and other assembly processes to form an assembly where the first component and the second component are tightly connected; it is usually necessary to quickly determine whether there is a leak at the assembly point. In the prior art, leak detection methods can be divided into pressurized leak detection method and vacuum leak detection method according to the state of the inspected component. Currently, there are mainly some leak detection instruments on the market, which are expensive and complicated to use. Moreover, the instrument can usually only be used for one of the pressurized leak detection or vacuum leak detection methods, and is not compatible with both leak detection methods.

Utility Model Content

In order to overcome the deficiencies of the prior art, the utility model provides a device leakage detection apparatus and a device leakage detection system to solve the problem that the prior art is not compatible with two leakage detection methods.

One embodiment of the utility model provides a device leakage detection device, including a mounting seat and a fixing ring;

A first mounting hole is arranged along the edge of the top of the mounting seat, and a first cavity is arranged in the middle of the mounting seat;

The edge of the fixing ring is provided with a second mounting hole, and the second mounting hole is coaxially corresponding to the first mounting hole; the middle of the fixing ring is provided with a second cavity; a fastener is provided in the second mounting hole and connected to the first mounting hole for detachable installation between the fixing ring and the mounting seat; the first cavity and the second cavity are closed to form a receiving cavity, and the receiving cavity is used to receive the device under test;

An air connection pipe is also provided at the bottom of the mounting seat, and the air connection pipe is communicated with the first cavity.

In this embodiment, it is compatible with both pressurized leak detection and vacuum leak detection, achieving multiple uses of one item. Moreover, compared with leak detection instruments on the market, the device has a simple structure, is easy to use, and has a high leak detection efficiency.

In one embodiment, the edge of the opening of the first cavity has a first annular groove, and the first annular groove is recessed toward the inside of the mounting seat for supporting the first element of the device under test.

In one embodiment, the bottom of the first annular groove has a mounting annular groove, and the mounting annular groove is coaxially arranged with the first annular groove;

A sealing ring is installed in the installation ring groove, and the sealing ring abuts against the bottom of the first element of the device under test.

In one embodiment, the opening edge of the second cavity facing the first cavity has a second annular groove, the second annular groove is recessed toward the inside of the fixing ring, and the second annular groove is used to press down and position the first element of the device under test.

In one of the embodiments, a plurality of the mounting ring grooves are coaxially arranged, the radii of the plurality of the coaxially arranged mounting ring grooves decrease successively, and a sealing ring is arranged in each of the plurality of the mounting ring grooves.

In one embodiment, the opening of the second cavity covers the second component and the slit hole of the device under test in the projection of the device under test, and the second cavity is used to avoid the second component and the slit hole of the device under test.

In one embodiment, at least three first mounting holes are provided, and a plurality of the first mounting holes are arranged in a circular shape at equal intervals on the top of the mounting seat;

And/or, the fastener is a fixing bolt.

In one of the embodiments, a gas pipe joint is provided at the end of the gas connecting pipe, and the gas pipe joint is any one of a VCR joint, a ferrule joint or a flange joint, which is used to connect the gas connecting pipe to an external gas source device or a gas device.

The present embodiment provides a device leakage detection system, comprising the device leakage detection device described in any one of the above-mentioned multiple embodiments, and also comprising an inflation device and a water tank, wherein the inflation device is connected to the air connecting pipe of the device leakage detection device and is used to supply air to the device leakage detection device; the water tank is filled with liquid, and the device leakage detection device installed with the device to be tested is placed in the water tank, and the device leakage detection device is immersed below the liquid surface.

This embodiment provides a device leak detection system, including the device leak detection device described in any one of the above multiple embodiments, and also includes a helium source and a helium mass spectrometer leak detector, wherein the helium mass spectrometer leak detector is connected to the gas connection pipe of the device leak detection device.

The device leakage detection device and device leakage detection system provided by the utility model have the following beneficial effects:

1. It is compatible with both pressurized leak detection and vacuum leak detection, achieving multiple uses of one item. Compared with the leak detection instruments on the market, this device has a simple structure, is easy to use, and has high leak detection efficiency.

2. Multiple sealing rings can effectively prevent the leakage of liquid or gas. The mutual compression and cooperation between the sealing rings can provide more reliable sealing and reduce the risk of leakage.

3. Any of the air pipe joints, such as a VCR joint, a ferrule joint or a flange joint, has the characteristics of quick connection and disassembly, making installation and maintenance more convenient and quick.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

FIG1 is a schematic structural diagram of a mounting base of the present invention;

FIG2 is a schematic diagram showing the three-dimensional structure of the fixing ring of the present invention from the front view;

FIG3 is a schematic diagram showing the three-dimensional structure of the fixing ring of the present invention from the reverse side;

FIG4 is a schematic diagram showing the overall structure of the device leakage detection device of the present invention;

FIG5 is a schematic structural diagram of a device under test of the present invention.

The following are the descriptions of the accompanying figures:

1-mounting seat; 11-first mounting hole; 12-first cavity; 13-first annular groove;

2-fixing ring; 21-second mounting hole; 22-second cavity; 23-second annular groove;

3- Fasteners;

4-trachea connection; 41-trachea connector;

5- Sealing ring;

6-device under test; 61-first element; 62-second element; 63-slit hole.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and/or" or "and/or" appears in the full text, its meaning includes three parallel solutions. Taking "A and/or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

Referring to FIGS. 1 to 5 , one embodiment of the present utility model provides a device leakage detection device, including a mounting seat 1 and a fixing ring 2;

A first mounting hole 11 is provided along the edge of the top of the mounting seat 1, and a first cavity 12 is provided in the middle of the mounting seat 1;

The edge of the fixing ring 2 is provided with a second mounting hole 21, and the second mounting hole 21 is coaxially corresponding to the first mounting hole 11; the middle of the fixing ring 2 is provided with a second cavity 22; a fastener 3 is provided in the second mounting hole 21 and connected to the first mounting hole 11, which is used for detachable installation between the fixing ring 2 and the mounting seat 1; the first cavity 12 and the second cavity 22 are closed to form a receiving cavity, and the receiving cavity is used to receive the device under test 6;

An air connection pipe 4 is also provided at the bottom of the mounting base 1 , and the air connection pipe 4 is connected to the first cavity 12 .

In this embodiment, it is compatible with both pressurized leak detection and vacuum leak detection, achieving multiple uses of one item. Moreover, compared with leak detection instruments on the market, the device has a simple structure, is easy to use, and has a high leak detection efficiency.

Please refer to FIG. 1 to FIG. 3 , in one embodiment, the edge of the opening of the first cavity 12 has a first annular groove 13 , and the first annular groove 13 is recessed toward the inside of the mounting seat 1 for supporting the first element 61 of the device under test 6 .

In one embodiment, the bottom of the first annular groove 13 has a mounting annular groove, and the mounting annular groove is coaxially arranged with the first annular groove 13;

A sealing ring 5 is installed in the installation ring groove, and the sealing ring 5 abuts against the bottom of the first element 61 of the device under test 6 .

In one embodiment, the second cavity 22 has a second annular groove 23 at its opening edge facing the first cavity 12 . The second annular groove 23 is recessed into the interior of the fixing ring 2 . The second annular groove 23 is used to press down and position the first element 61 of the device under test 6 .

In one of the application scenarios of the present embodiment, the installation method is as follows: the device under test is placed in the first annular groove 13, a sealing ring 4 is provided between the device under test and the first annular groove 13, the fixing ring 2 is placed on the upper surface of the device under test, wherein the second annular groove 23 faces the device under test, the second annular groove 23 and the first annular groove 13 clamp the device under test, and the mounting seat 1 and the fixing ring 2 are connected by fasteners 3 (such as fixing bolts).

In one embodiment, a plurality of the mounting ring grooves are coaxially arranged, the radii of the plurality of the coaxially arranged mounting ring grooves decrease successively, and a sealing ring 5 is arranged in each of the plurality of the mounting ring grooves.

In this embodiment, multiple sealing rings can effectively prevent leakage of liquid or gas, and the mutual compression and cooperation between the sealing rings can provide more reliable sealing and reduce the risk of leakage.

In one embodiment, the projection of the opening of the second cavity 22 on the device under test 6 covers the second component 62 and the slit hole 63 of the device under test 6 , and the second cavity 22 is used to avoid the second component 62 and the slit hole 63 of the device under test 6 .

In this embodiment, the second cavity 22 and the second annular groove 23 form a stepped structure. In addition to fixing the second element 62 through the stepped surface, this structure also forms a cavity including the surface of the first element 61 facing the second cavity, the surface of the second element 62 and the gap hole 63, which facilitates the injection of identification gas into the cavity to achieve leak detection of the device under test.

Referring to FIGS. 1 to 3 , in one embodiment, at least three first mounting holes 11 are provided, and a plurality of the first mounting holes 11 are provided in a circular shape at equal intervals on the top of the mounting seat 1 ;

And/or, the fastener 3 is a fixing bolt.

Please refer to Figure 1. In one embodiment, a gas pipe connector 41 is provided at the end of the gas connecting pipe 4. The gas pipe connector 41 is any one of a VCR connector, a ferrule connector or a flange connector, and is used to connect the gas connecting pipe 4 to an external gas source device or a gas device.

In this embodiment, the gas pipe joint 41 is any one of a VCR joint, a ferrule joint or a flange joint, which has the characteristics of quick connection and disassembly, making installation and maintenance more convenient and quick. Whether it is the threaded connection of the VCR joint, the bayonet connection of the ferrule joint, or the bolt connection of the flange joint, it can be operated without the need for professional tools, and can work safely and reliably under high pressure environment, ensuring the stability and continuity of gas transmission.

In an application scenario of the present embodiment, the air pipe joint uses a flange connector, which can adapt to the connection of pipes and equipment of different sizes and materials and has high flexibility.

The present embodiment provides a device leakage detection system, comprising the device leakage detection device described in any one of the above-mentioned multiple embodiments, and also comprising an inflation device and a water tank, wherein the inflation device is connected to the air connecting pipe 4 of the device leakage detection device and is used to supply air to the device leakage detection device; the water tank is filled with liquid (preferably pure water), and the device leakage detection device installed with the device to be tested 6 is placed in the water tank, and the device leakage detection device is immersed below the liquid surface.

In this embodiment, the air inlet 6 is connected to an external air source device (such as a high-pressure inflation device) through the air pipe joint 41, and a certain amount of high-pressure gas is filled. Then, the device leak detection device is placed in the water tank and immersed in the liquid, and the slit hole 63 is immersed below the liquid surface. If bubbles appear in the slit hole 63, it can be determined that the device to be tested is leaking; if there is no bubble in the slit hole 63 within a certain period of time, it can be determined that the sealing effect of the device to be tested is good and there is no leakage.

This embodiment provides a device leak detection system, including the device leak detection device described in any one of the above multiple embodiments, and also includes a helium source and a helium mass spectrometer leak detector, and the helium mass spectrometer leak detector is connected to the gas connection pipe 4 of the device leak detection device.

In this embodiment, the gas connection pipe 4 is connected to the connection port of the helium mass spectrometer leak detector through the gas pipe joint 41, and the helium mass spectrometer leak detector is in a leak detection state, and the helium mass spectrometer leak detector detects whether helium appears inside the gas connection pipe 4;

During the detection application, helium is injected into the second cavity 22 to fill the entire second cavity and surround the surface of the first element 61 facing the second cavity, the surface of the second element 62 and the gap hole 63. If the leakage rate of the helium mass spectrometer leak detector is higher than the set value, it can be determined that the device under test is leaking; if the leakage rate detected by the helium mass spectrometer leak detector within a certain period of time is lower than the set value, it can be determined that the sealing effect of the device under test is good and there is no leakage.

The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly/indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims (10)

1. A device for detecting leakage of a device, characterized in that it comprises a mounting seat (1) and a fixing ring (2); A first mounting hole (11) is provided along the edge of the top of the mounting seat (1), and a first cavity (12) is provided in the middle of the mounting seat (1); The edge of the fixing ring (2) is provided with a second mounting hole (21), and the second mounting hole (21) is coaxially corresponding to the first mounting hole (11); a second cavity (22) is provided in the middle of the fixing ring (2); a fastener (3) is provided in the second mounting hole (21) and is connected to the first mounting hole (11) for detachable mounting between the fixing ring (2) and the mounting seat (1); the first cavity (12) and the second cavity (22) are closed to form a receiving cavity, and the receiving cavity is used to receive the device under test (6); An air connection pipe (4) is also provided at the bottom of the mounting seat (1), and the air connection pipe (4) is in communication with the first cavity (12). 2. The device leakage detection apparatus according to claim 1 is characterized in that the edge of the opening of the first cavity (12) has a first annular groove (13), and the first annular groove (13) is recessed toward the interior of the mounting seat (1) for supporting the first element (61) of the device under test (6). 3. The device leakage detection apparatus according to claim 2, characterized in that the bottom of the first annular groove (13) has a mounting annular groove, and the mounting annular groove is coaxially arranged with the first annular groove (13); A sealing ring (5) is installed in the installation ring groove, and the sealing ring (5) abuts against the bottom of the first element (61) of the device under test (6). 4. The device leakage detection apparatus according to claim 3 is characterized in that a plurality of the mounting ring grooves are coaxially arranged, the radii of the plurality of the coaxially arranged mounting ring grooves decrease successively, and a sealing ring (5) is arranged in each of the plurality of the mounting ring grooves. 5. The device leakage detection apparatus according to claim 1 is characterized in that the opening edge of the second cavity (22) facing the first cavity (12) has a second annular groove (23), the second annular groove (23) is recessed toward the interior of the fixing ring (2), and the second annular groove (23) is used to press down and position the first element (61) of the device to be tested (6). 6. The device leakage detection apparatus according to claim 5 is characterized in that the opening of the second cavity (22) covers the second element (62) and the gap hole (63) of the device under test (6) in the projection of the device under test (6), and the second cavity (22) is used to avoid the second element (62) and the gap hole (63) of the device under test (6). 7. The device leakage detection apparatus according to claim 1, characterized in that at least three first mounting holes (11) are provided, and a plurality of the first mounting holes (11) are arranged in a circular shape at equal intervals on the top of the mounting seat (1); And/or, the fastener (3) is a fixing bolt. 8. The device leak detection apparatus according to claim 7 is characterized in that a gas pipe joint (41) is provided at the end of the gas connecting pipe (4), and the gas pipe joint (41) is any one of a VCR joint, a ferrule joint or a flange joint, and is used to connect the gas connecting pipe (4) to an external gas source device or a gas device. 9. A device leakage detection system, characterized in that it comprises the device leakage detection device as described in any one of claims 1 to 8, and also comprises an inflation device and a water tank, wherein the inflation device is connected to an air connection pipe (4) of the device leakage detection device and is used to supply air to the device leakage detection device; the water tank is filled with liquid, and the device leakage detection device installed with the device to be tested (6) is placed in the water tank, and the device leakage detection device is immersed below the liquid surface. 10. A device leak detection system, characterized in that it comprises the device leak detection apparatus according to any one of claims 1 to 8, and further comprises a helium source and a helium mass spectrometer leak detector, wherein the helium mass spectrometer leak detector is connected to a gas connection pipe (4) of the device leak detection apparatus.