CN218916722U - Tightness test device - Google Patents

Abstract

This application discloses a sealing test device, which relates to the technical field of sealing test equipment, which improves the problems of long time consumption and low efficiency of the existing sealing test method, including water pumps, connecting pipes, pressure gauges and test tubes. One end of the communication pipe is fixedly connected to the water pump, the test pipe is fixedly connected to the other end of the communication pipe, the communication pipe communicates with the test pipe, the pressure gauge is arranged on the communication pipe, The test tube extends outwards with a plurality of second joints for fixed connection with the test object. This application can perform airtightness tests on multiple test objects at one time, and when there is leakage in the test objects, the leaky test objects can be separated to stop the airtightness test, reducing the impact of leakage on other test objects. The effect of the subject's normal performance of the containment test.

Description

A sealing test device

technical field

The present application relates to the technical field of airtightness test equipment, in particular to an airtightness test device.

Background technique

The airtightness test is a common test method, and its test object is the parts that need to have a certain degree of airtightness after passing through the water, such as: closed nozzles, valves, etc.

Existing airtightness test methods usually use a water pump to apply water pressure to the test object. If the test object can withstand a constant water pressure within a certain period of time and can maintain its own airtightness, the object to be tested will pass the test. That is, the airtightness of the object to be tested is qualified.

The existing airtightness test method can only perform an airtightness test on a single object to be tested at a time, and the process of the airtightness test often takes several minutes, and even if a batch of products to be tested is airtighted by means of a sampling test Finally, it is necessary to carry out the airtightness test on a plurality of sampled objects to be tested one by one, which makes the airtightness test process of a batch of objects to be tested need to spend more time, and the efficiency of the airtightness test is low.

Utility model content

In order to improve the time-consuming and low-efficiency problems of the existing airtight test method, the present application provides an airtight test device.

This application provides a kind of airtightness test device, adopts the following technical scheme:

A sealing test device, comprising a water pump, a communication pipe, a pressure gauge and a test tube, one end of the communication pipe is fixedly connected to the water pump, the test tube is fixedly connected to the other end of the communication pipe, and the communication pipe The tube communicates with the test tube, the pressure gauge is arranged on the connecting tube, and the test tube extends outwards with a plurality of second joints for the fixed connection of the test object.

By adopting the above technical scheme, after multiple test objects are installed on the test tube through the second joint, the water pump is turned on to make the connecting tube and the test tube under pressure, and the water pump is controlled to adjust the connection while observing the value of the pressure gauge. The pressure value inside the tube and the test tube. After the water pump is adjusted, the airtightness test can be performed on multiple test objects at the same time; the airtightness test can be performed on multiple test objects at one time, which can greatly improve the efficiency of the airtightness test. , so as to shorten the time required for multiple test objects to perform the airtightness test.

Optionally, a plurality of test tubes are provided, and the communication tube extends outwards with a plurality of first joints for fixed connection of the test tubes.

By adopting the above-mentioned technical scheme, testers can add test tubes according to specific needs, so that the airtightness test device can conduct airtightness tests on more objects to be tested at one time, further improving the efficiency of airtightness tests, and further shortening the number of times. The time required for the subject to be tested for the leak test.

Optionally, it includes a plurality of first valve bodies, the plurality of first valve bodies are respectively arranged on a plurality of the test tubes, and the first valve body is located at one end of the test tube close to the communication tube .

By adopting the above technical scheme, when a certain object to be tested on a certain test tube leaks, the test personnel can control the first valve body on the test tube to close after recording the object to be tested. The object leaks, so the water pressure inside the test tube changes, and the gas subject to be tested installed on the test tube will not be able to continue the test, and closing the first valve body can effectively prevent the leakage from affecting the gas on other test tubes. Airtight test, while stopping leakage, reducing the waste of water resources.

Optionally, it also includes a plurality of second valve bodies, each of the test tubes is provided with a plurality of second valve bodies, and the second valve bodies are arranged between adjacent second joints.

By adopting the above-mentioned technical scheme, when a certain object to be tested on a certain test tube leaks, the test personnel only need to control the closing of the corresponding second valve body after recording the object to be tested. The test object and other test objects on the side away from the connecting pipe stop the airtightness test, while the leaking test object and other test objects on the side close to the connecting pipe can still perform the airtightness test, which can further reduce leakage The impact of the normal airtightness test on other subjects to be tested.

Optionally, it also includes a plurality of spare pipes and a plurality of third valve bodies, one end of the spare pipe communicates with and is fixedly connected to the test pipe, and the connection position between the spare pipe and the test pipe is located at the first a valve body close to the side of the communication pipe, the third valve body is arranged at the end of the spare pipe close to the test pipe;

The spare pipe extends outwards with a plurality of branch pipes, and the end of the branch pipe far away from the spare pipe communicates with and is fixedly connected with the test pipe, and the connection position between the branch pipe and the test pipe is located adjacent to the second Between the joints, a second valve body is arranged between the branch pipe and the adjacent second joints.

By adopting the above technical scheme, when a certain object to be tested on a certain test tube leaks, the test personnel only need to control the corresponding first valve body and the two adjacent second valves after recording the object to be tested. body is closed, and the corresponding third valve body can be opened, and the water flow will flow into the standby pipe to continue to apply water pressure to other test objects. In the end, only the test objects with leakage will stop the airtightness test, which can further reduce the impact of leakage on The influence of other subjects to be tested on the normal airtightness test.

Optionally, multiple pressure gauges are provided, and the pressure gauges are provided on multiple first valve bodies and multiple second valve bodies.

By adopting the above technical scheme, the pressure gauge can reflect the airtightness of the current position. When the object to be tested leaks, the tester can quickly find and determine the object to be tested with leakage according to the difference of the data on the pressure gauge, so as to be able to The corresponding first valve body, the second valve body and the third valve body are controlled in time to reduce the impact of the leakage of the test object on the airtightness test of other test objects and improve the reliability of the airtightness test results.

Optionally, a mounting frame is also included, the mounting frame is located below the test tube, and the mounting frame is against the test tube.

By adopting the above technical solution, the mounting frame can support the test tube, and at the same time, it is convenient for the test personnel to fix the test tube to the first joint.

Optionally, a water collection frame is also included, the water collection frame is arranged inside the installation frame, and the water collection frame is located under a plurality of the test tubes.

By adopting the above technical scheme, during the airtightness test, when the object to be tested leaks, the leaked water will fall into the water collection frame to collect, which can prevent the leaked water from falling directly to the ground and causing damage around the airtightness test equipment. The ground is easy to get dirty, and at the same time, it can collect leaking water for subsequent reuse, further saving water resources.

Optionally, the end of the second joint away from the test tube faces the water collecting frame.

By adopting the above technical scheme, the leaking water can be directly dropped to the water collection frame for collection, reducing the probability and time that the leaking water is in contact with the second joint and the test tube, thereby reducing the risk of leakage of the second joint and the test tube due to water leakage. And the probability of corrosion prolongs the service life of the second joint and the test tube.

In summary, the present application includes at least one of the following beneficial effects:

1. The test personnel can add test tubes according to the number of test objects required for the airtightness test, so that the airtightness test device can perform airtightness tests on multiple test objects at one time, improving the efficiency of the airtightness test. Shorten the time required for multiple test objects to conduct airtightness tests;

2. When there is leakage of the test object during the airtightness test, the test personnel can quickly determine the leaking test object through the value of the pressure gauge;

3. When there is leakage of the object to be tested during the airtightness test, by controlling the opening and closing of the corresponding first valve body, the second valve body and the third valve body, the leakage of the object to be tested can be Independently stop the airtightness test to reduce the influence of the leakage of the test object on other test objects.

Description of drawings

Fig. 1 is the structural representation of a kind of airtight test device in embodiment 1;

Fig. 2 is a partial top view of a kind of airtightness test device in embodiment 1;

3 is a schematic structural view of a leak test device in Example 2.

Description of reference signs: 1, water pump; 2, connecting pipe; 21, first joint; 3, test tube; 31, second joint; 4, pressure gauge; 5, installation frame; 6, object to be tested; 7, set Water frame; 8, standby pipe; 81, branch pipe; 101, first valve body; 102, second valve body; 103, third valve body.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-3.

Embodiment 1, the embodiment of this application discloses an airtightness test device.

Referring to Fig. 1, the airtight test device includes a water pump 1, a connecting pipe 2, a test pipe 3 and a pressure gauge 4. One end of the water pump 1 communicates with the communicating pipe 2 and is fixedly connected, the other end of the water pump 1 communicates with a water source, and the test pipe 3 communicates with the water source. The pipes 2 are communicated and fixedly connected, and the pressure gauge 4 is fixedly installed on the communicating pipe 2 for observing the internal pressure value of the communicating pipe 2 after passing water. After installing multiple test objects 6 on the test tube 3, the tester turns on the water pump 1 to pass water into the connecting pipe 2 and the pressure pipe, and then controls the water pump 1 to adjust the pressure in the pipe while observing the value of the pressure gauge 4, that is The airtightness test can be started simultaneously on a plurality of test objects 6 .

The water pump 1 is fixedly installed on the ground, and the end of the connecting pipe 2 away from the water pump 1 is bent and suspended in the air, and the length direction of this part is horizontal. On the end of the connecting pipe away from the water pump 1, there are a plurality of first joints 21 extending outward in a direction perpendicular to its own length direction. The first joints 21 are located on the side of the communication pipe 2 away from the water pump 1. The length direction of the end of the pipe 2 away from the water pump 1 is equally spaced.

At least one test tube 3 is installed on the communication tube 2 , and the end of the test tube 3 is fixedly connected to the communication tube 2 through a first joint 21 . After the test tube 3 is installed, the length direction of the test tube 3 is perpendicular to the length direction of the end of the connecting pipe 2 away from the water pump 1 . In this embodiment, it is preferable that the test tubes 3 are connected and installed on the plurality of first joints 21 . In other embodiments, if there are first joints 21 without the test tubes 3 connected and installed, they are sealed by plugs.

The airtight test device also includes a mounting frame 5, the mounting frame 5 is fixedly installed on the ground, the end of the connecting pipe 2 away from the water pump 1 and a plurality of test tubes 3 are all located above the mounting frame 5 and offset against the mounting frame 5, the mounting frame 5 It supports the end of the communication pipe 2 away from the water pump 1 and the plurality of test pipes 3 .

A plurality of second joints 31 extend vertically downwards on the test tube 3, and the second joints 31 are used to form a connection between the test object 6 and the test tube 3. Distributed at equal intervals along the length direction. In this embodiment, preferably a plurality of second joints 31 on the test tube 3 are to be connected and installed by the test object 6. In other embodiments, if there are second joints 31 that are not to be connected and installed by the test object 6, then the plugs are used to connect and install the second joints 31. Its sealed.

The airtightness test device also includes a water collection frame 7 , which is fixedly installed on the ground and located inside the installation frame 5 . When the plurality of second joints 31 on the plurality of test tubes 3 are connected with the test objects 6 , the plurality of test objects 6 are all located above the water collection frame 7 . During the airtightness test, if there is leakage in the test object 6, the leakage water will drop into the water collection frame 7 to be collected.

The sealing test device also includes a plurality of first valve bodies 101 and a plurality of second valve bodies 102, the first valve body 101 is fixedly installed on the end of the test tube 3 close to the connecting pipe 2; the second valve body 102 is fixedly installed on the test tube 3, and two second valve bodies 102 are installed on the test tube 3 at intervals between adjacent second joints 31.

Referring to FIG. 1 and FIG. 2 , the airtightness test device further includes a plurality of spare pipes 8 and a plurality of third valve bodies 103 , and the third valve bodies 103 are fixedly installed on one end of the spare pipe 8 close to the test pipe 3 . One end of the spare pipe 8 communicates and is fixedly connected with the end of the test pipe 3 close to the connecting pipe 2, and the connection position between the spare pipe 8 and the test pipe 3 is located on the side of the first valve body 101 close to the connecting pipe 2; the upper edge of the spare pipe 8 There are a plurality of branch pipes 81 extending in the direction close to the test tube 3, and the plurality of branch pipes 81 are equally spaced along the length direction of the spare pipe 8. The end of the branch pipe 81 away from the spare pipe 8 communicates with the test tube 3 and is fixedly connected. The connection position of the pipe 3 is located between two second valve bodies 102 between adjacent second joints 31 .

In this embodiment, preferably, the first valve body 101 , the second valve body 102 and the third valve body 103 are gate valves controlled manually.

A plurality of pressure gauges 4 are installed, and a pressure gauge 4 is installed on each first valve body 101 and each second valve body 102 .

The implementation principle of a kind of airtight test device in the embodiment of the present application is:

After the required number of test tubes 3 are connected and installed on the connecting pipe 2 through the first joint 21, the required number of test objects 6 are connected and installed on a plurality of test tubes 3 through the second joint 31, and then the first joint is controlled. The first valve body 101 and the second valve body 102 are opened, and the third valve body 103 is closed. At this time, the preliminary preparations for the airtightness test are completed;

Turn on the water pump 1, then control the water pump 1 to adjust the pressure in the pipe while observing the pressure gauge 4 near the water pump 1, so that the pressure is adjusted to the required size, and then observe multiple test objects 6 and multiple objects near the test object 6 during the test. a pressure gauge 4, the test object 6 that leaks can be determined by observing the numerical change of the test object 6 or its nearby pressure gauge 4;

During the airtightness test, when there is leakage in the object to be tested 6, close the second valve body 102 on both sides of the object to be tested 6 that leaks and the second valve body 102 on the test tube 3 where the object to be tested 6 that leaks occurs. One valve body 101, and open the third valve body 103 on the corresponding standby pipe 8, at this time, the test object 6 that leaks will stop the airtightness test, while other test objects 6 can continue to carry out the airtightness test normally.

Example 2:

Referring to Figure 1 and Figure 3, the difference between this embodiment and Embodiment 1 lies in the first valve body 101, the second valve body 102 and the third valve body 103, in this embodiment, preferably the first valve body 101, the second valve body Both the second valve body 102 and the third valve body 103 are gate valves controlled by an electric circuit.

The second valve body 102 can control its opening and closing state according to the value change of the pressure gauge 4 connected to itself. The opening and closing state of the body 102 controls the opening and closing state of itself.

When the airtightness test device is in normal use, the first valve body 101 and the second valve body 102 are in a normally open state, and the third valve body 103 is in a normally closed state; after the airtightness test starts, when the second valve body 102 When the value on the pressure gauge 4 changes, the second valve body 102 will switch to the closed state; and when a certain second valve body 102 is closed, the first valve body 101 on the same test tube 3 will also be closed, and the corresponding standby The third valve body 103 on the pipe 8 will switch to an open state.

The implementation principle of a kind of airtight test device in the embodiment of the present application is:

During the airtightness test, when there is leakage in the object 6 to be tested, there is no need for the tester to find the object 6 to be tested for leakage, and to control the corresponding first valve body 101, the second valve body 102 and the first valve body 102. The three valve bodies 103 are opened or closed; the first valve body 101, the second valve body 102, and the third valve body 103 can change their opening and closing states according to whether there is leakage, and can automatically make the leakage of the subject to be tested 6 will stop the airtightness test, while other subjects 6 to be tested can continue to carry out the airtightness test normally.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (9)

1. A sealing test device, characterized in that it includes a water pump (1), a connecting pipe (2), a pressure gauge (4) and a test tube (3), and one end of the connecting pipe (2) is connected to the water pump (1) Fixed connection, the test tube (3) is fixedly connected to the other end of the communication tube (2), the communication tube (2) communicates with the test tube (3), the pressure gauge (4 ) is arranged on the connecting pipe (2), and the test pipe (3) has a plurality of second joints (31) extending outwards for the fixed connection of the subject (6) to be tested. 2. A sealing test device according to claim 1, characterized in that there are multiple test tubes (3), and multiple connecting tubes (2) extend outward for the test tubes (3) The first joint (21) that is fixedly connected. 3. The airtightness test device according to claim 2, characterized in that it comprises a plurality of first valve bodies (101), and a plurality of said first valve bodies (101) are respectively arranged in a plurality of said test on the tube (3), and the first valve body (101) is located at the end of the test tube (3) close to the communicating tube (2). 4. A sealing test device according to claim 3, characterized in that it further comprises a plurality of second valve bodies (102), and each of the test tubes (3) is provided with a plurality of second valves body (102), the second valve body (102) is arranged between adjacent second joints (31). 5. A sealing test device according to claim 4, characterized in that it further comprises a plurality of spare pipes (8) and a plurality of third valve bodies (103), one end of the spare pipes (8) is connected to The test tube (3) is communicated and fixedly connected, and the connection position between the spare tube (8) and the test tube (3) is located at a side of the first valve body (101) close to the connecting tube (2). side, the third valve body (103) is arranged at the end of the backup pipe (8) close to the test pipe (3); The backup pipe (8) has a plurality of branch pipes (81) extending outward, and the end of the branch pipe (81) away from the backup pipe (8) communicates with and is fixedly connected to the test pipe (3). The connection position between (81) and the test tube (3) is located between the adjacent second joints (31), and the branch pipe (81) and the adjacent second joints (31) are provided with A second valve body (102). 6. A sealing test device according to claim 5, characterized in that, the pressure gauge (4) is provided with multiple, multiple first valve bodies (101) and multiple second valve bodies The pressure gauges (4) are provided on the valve bodies (102). 7. The airtightness test device according to claim 2, characterized in that it further comprises a mounting frame (5), the mounting frame (5) is located below the test tube (3), and the mounting frame (5) is (5) offset against the test tube (3). 8. The airtightness test device according to claim 7, characterized in that it further comprises a water collection frame (7), the water collection frame (7) is arranged inside the installation frame (5), and The water collection frame (7) is located under the multiple test tubes (3). 9 . The airtightness test device according to claim 8 , characterized in that, the end of the second joint ( 31 ) away from the test tube ( 3 ) faces the water collecting frame ( 7 ).

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