Automatic air leakage detection device

Abstract

The utility model relates to an automatic air leakage detection device which comprises a control box and an air pipe led out of the control box. The control box supplies testing airflow with multi-specification air pressure and multi-specification pressurization time, the air pipe is detachably connected with a plurality of air conveying branches, an air pump and a pressure sensor are arranged in the control box, the output time and the output pressure of the air pump are adjustable, and detachable connecting structures are installed between the air pipe and the air conveying branches. The detachable connection structure comprises an installation connector, a ventilation connector, a sealing cover and a self-plugging elastic piece arranged in the installation connector. According to actual test requirements, the detachable connecting structure and the gas transmission branch are assembled with the gas pipe, a test gas pipe is led out from the control box, and a plurality of joints with multiple specifications are led out from the test gas pipe and are used for being connected with different types of pieces to be tested. The control box provided by the utility model can provide pressure with different magnitudes and pressurization time with different time lengths, and meets the requirements of multi-specification tests.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection equipment technical field especially a gas leakage automatic detection device. BACKGROUND

[0002] Airtightness detection is a detection method for judging the sealing performance of a measured object or system by measuring the gas leakage amount thereof. Airtightness detection is required in the production and inspection links of various parts or devices.

[0003] At present, one type of detection equipment is usually used for one type of product in the industry. If different detection equipment is to be tested, different types of test equipment need to be prepared according to the number of detection equipment to be tested, which is high in test cost and complex in operation steps. UTILITY MODEL CONTENT

[0004] The applicant provides a gas leakage automatic detection device with a reasonable structure to solve the above problems in the prior art. The device is controlled by a control box to control the pressure required for each detection and the pressurization time, and is provided with multiple gas supply branches and joints of different specifications, so that the device can be applied to different types of test pieces.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A gas leakage automatic detection device comprises a control box and a gas pipe connected to the control box. The control box supplies test gas flow with multiple specifications of gas pressure and pressurization time. Multiple gas supply branches are detachably connected to the gas pipe,

[0007] A gas pump and a pressure sensor are arranged in the control box. The output time and output pressure of the gas pump are adjustable,

[0008] A detachable connection structure is installed between the gas pipe and the gas supply branch. The detachable connection structure comprises a mounting joint, an air supply joint, a sealing cover and a self-sealing elastic sheet arranged in the mounting joint. The detachable connection structure and the gas supply branch are assembled with the gas pipe according to actual test requirements.

[0009] As a further improvement of the above technical scheme:

[0010] The structure in the control box comprises:

[0011] A gas pump is installed on the wall of the box,

[0012] Multiple switches are arranged on the gas pump to control the working state of the gas pump,

[0013] A timer is connected to the gas pump in the same path,

[0014] A buzzer is connected to the timer and the gas pump in the same path,

[0015] A pressure sensor, connected to the air pump, is used to monitor the output pressure in real time.

[0016] A pressure gauge is installed on the wall of the control box to display the pressure value measured by the pressure sensor.

[0017] The elastic plates inside the mounting joint are arranged in a circular array, with adjacent elastic plates overlapping to enclose the interface space.

[0018] The elastic sheet extends in a spiral shape from the circumference towards the center.

[0019] The spiral extension direction of the elastic sheet is the same as the installation spiral direction of the vent joint.

[0020] One end of the gas supply branch is compatible with various specifications of test pieces.

[0021] Multiple gas supply branches originating from the same trachea have test connectors of the same or different specifications.

[0022] The beneficial effects of this utility model are as follows:

[0023] The control box of this invention features a test gas tube with several connectors of various specifications for connecting to different types of test pieces. The control box can provide different pressure levels and pressurization times to meet the needs of multi-specification testing.

[0024] The connector and the test tubing can be connected as a single unit to improve airtightness, or they can be detachable to accommodate a wider range of connector types.

[0025] The air pump, switches, timers, alarm buzzers, and pressure sensors inside the control box are used in combination. By pressing different switches, the output air pressure and pressurization time can be controlled. The selected test specifications can be displayed on an external pressure gauge and display screen. It is easy to operate, the results are intuitive, and it has broad application prospects. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0028] Figure 3 This is a structural schematic diagram of the concealed side wall of the box according to this utility model.

[0029] Figure 4 This is a structural schematic diagram of the hidden side wall of the box from another perspective.

[0030] Figure 5 This is an exploded view of the mating structure of the mounting connector and the ventilation connector of this utility model.

[0031] Figure 6 The exploded view of the cooperation structure of the mounting joint and the sealing cover of the utility model.

[0032] Wherein: 1, control box; 2, air pipe; 3, gas supply branch; 4, detachable connection structure;

[0033] 101, air pump; 102, switch; 103, timer; 104, alarm buzzer; 105, pressure sensor; 106, pressure gauge;

[0034] 401, mounting joint; 402, air joint; 403, elastic sheet; 404, sealing cover. DETAILED DESCRIPTION

[0035] The specific implementation of the utility model will be described below in combination with the drawings.

[0036] As Figures 1-6 shown, the air leakage automatic detection device of the embodiment includes a control box 1 and an air pipe 2 leading out from the control box 1; the control box 1 supplies test air flow of multiple specifications of air pressure and multiple specifications of pressurization time, and multiple gas supply branches 3 are detachably connected to the air pipe 2,

[0037] An air pump 101 and a pressure sensor 105 are arranged in the control box 1, the output time and output pressure of the air pump 101 are adjustable,

[0038] A detachable connection structure 4 is installed between the air pipe 2 and the gas supply branch 3, the detachable connection structure 4 includes a mounting joint 401, an air joint 402, a sealing cover 404, and a self-sealing elastic sheet 403 arranged in the mounting joint 401; the detachable connection structure 4 and the gas supply branch 3 are assembled with the air pipe 2 according to actual test needs.

[0039] The structure in the control box 1 includes:

[0040] The air pump 101 is installed on the wall of the box,

[0041] The switch 102 is arranged on the air pump 101, and is used to control the working state of the air pump 101,

[0042] The timer 103 is connected to the air pump 101 in the same path,

[0043] The buzzer is connected to the timer 103 and the air pump 101 in the same path,

[0044] The pressure sensor 105 is connected to the air pump 101, and is used to monitor the output pressure in real time.

[0045] The pressure gauge 106 is installed on the wall of the control box 1, and is used to display the pressure value measured by the pressure sensor 105.

[0046] The elastic pieces 403 in the mounting joint 401 are arranged in a circumferential array and overlap between adjacent elastic pieces 403 to seal the interface space.

[0047] The elastic pieces 403 extend in a helical line from the circumferential direction to the central direction.

[0048] The helical extension direction of the elastic pieces 403 is the same as the mounting rotation direction of the venting joint 402.

[0049] The output end of the gas supply branch 3 is adapted to the multi-specification test piece.

[0050] The multiple gas supply branches 3 drawn from the same gas pipe 2 are provided with the same-specification test joint or multi-specification test joint.

[0051] The specific structure and working principle of the utility model are as follows:

[0052] The utility model aims to provide a control box 1 capable of outputting multi-specification test gas flow, as shown in Figure 1 and Figure 2 , the control box 1 is connected with a gas pipe 2, the gas pipe 2 is connected with a pressure valve, and the output end of the gas pipe 2 is dispersed with multiple gas supply branches 3, each branch can select two states of closure or ventilation, and each branch can be provided with different-specification test joints to be threadedly connected with the test joint.

[0053] The multi-specification gas flow output of the control box 1 can make up for the current problems of time-consuming and labor-consuming test and inaccurate test.

[0054] As shown in Figure 3 and Figure 4 , a gas pump 101 is built in the control box 1, and the gas pump 101 is controlled to start and stop through a switch 102. In order to facilitate operation, multiple switches 102 are configured for one gas pump 101, such as one setting mode in the figure, three switches 102 are set, and each switch 102 corresponds to one specification of output pressure.

[0055] The output time is controlled through a timer 103, and an alarm buzzer 104 is also connected in the line of the timer 103 and the gas pump 101. When the timer 103 ends timing, the alarm buzzer 104 emits a sound, and a person can cut off the pressure output after hearing the alarm sound; or directly use the built-in program to directly brake the gas pump 101 when the timer 103 ends and the alarm buzzer 104 emits an alarm, to stop the gas pressure output.

[0056] In order to facilitate the acquisition of instantaneous gas pressure, a pressure sensor 105 is also connected in the control box 1, and the pressure value and pressure output time of the pressure sensor 105 can be displayed on a pressure gauge 106 on the outer wall of the control box 1, so as to be observed by the operator.

[0057] The control box 1 provides adjustable air pressure, and the air pipe 2 connects different test objects.

[0058] As shown in Figure 5 and Figure 6 In order to control the on-off of each gas supply branch 3, the detachable connection structure 4 is arranged between the gas supply branch 3 and the air pipe 2, and the corresponding interface can be completely closed after the gas supply branch 3 is detached, without affecting the pressure of other branches.

[0059] The detachable connection structure 4 includes a mounting connector 401 connected with the air pipe 2, a ventilation connector 402 on the gas supply branch 3, and a separate sealing cover 404. The mounting connector 401 is externally formed with external threads, and internally provided with a deformable and resettable elastic sheet 403. The elastic sheet 403 can be made of multiple rubber sheets, which are circumferentially arrayed and spirally overlapped near the center, and the spiral direction is the same as the rotation direction of the ventilation connector 402.

[0060] When the gas supply branch 3 needs to be installed for testing, the ventilation connector 402 is rotated and connected to the mounting connector 401. At this time, with the rotation of the ventilation connector 402, the elastic sheet 403 is gradually pushed open. Because the installation direction is the same as the arrangement direction of the elastic sheet 403, the ventilation connector 402 will not be embedded in the gap between the elastic sheet 403, affecting the subsequent lifting. Finally, when the installation is completed, the hard end of the gas supply branch 3 is circumferentially attached to the elastic sheet 403, and the cover structure of the ventilation connector 402 is sealed with the mounting connector 401, meeting the ventilation requirements.

[0061] When the gas supply branch 3 is detached, the ventilation connector 402 is rotated in the opposite direction, and the ventilation connector 402 is removed. The sealing cover 404 is replaced, and the sealing cover 404 is also threadedly connected with the mounting connector 401. When the sealing cover 404 is installed, the sealing cover 404 and the reset elastic sheet 403 simultaneously seal the air path, which can withstand a large air flow.

[0062] If the required air flow for testing is small, due to the mutual overlap between the elastic sheets 403 and the certain hardness, the small air flow range can make the overlap between the elastic sheets 403 tighter, and the simple seal of the elastic sheets 403 will not be broken, and the test requirement of the small air flow can be met, and in this case, the operation of the disassembly structure in the adaptive multi-specification test environment is simplified.

[0063] As a further optional optimization mode, the elastic sheet 403 can be provided with two or more layers. The multi-layered elastic sheet 403 will not affect the penetration of the air supply branch 3, and at the same time, can have higher sealing performance. And the self-sealing structure after splitting can effectively prevent impurities in the external environment from entering the pipeline, and ensure the smoothness of the air inlet of the test product and the pipeline.

[0064] The above description is an explanation of the utility model, not a limitation of the utility model, the scope defined by the utility model is referred to the claims, and any form of modification can be made within the protection scope of the utility model.

Claims

1. A device for automatically detecting a gas leak, characterized in that: Including control box (1), from control box (1) leading air pipe (2);The control box (1) supplies the test gas flow of multiple specifications gas pressure, multiple specifications pressurization time, and multiple gas supply branches (3) can be detachably connected on the air pipe (2), The control box (1) is provided with a gas pump (101) and a pressure sensor (105), the output time and the output pressure of the gas pump (101) can be adjusted, The detachable connecting structure (4) is installed between the air pipe (2) and the gas supply branch (3), the detachable connecting structure (4) includes a mounting connector (401), a ventilation connector (402), a sealing cover (404), and a self-sealing elastic sheet (403) built in the mounting connector (401), the detachable connecting structure (4) and the gas supply branch (3) are assembled with the air pipe (2) according to actual test needs.

2. The apparatus for automatically detecting a blow-by gas according to claim 1, characterized by: The structure in the control box (1) includes: The gas pump (101) is installed on the wall of the box, A plurality of switches (102) are arranged on the gas pump (101) for controlling the working state of the gas pump (101), The timer (103) is connected with the gas pump (101) in the same path, The buzzer is connected with the timer (103) and the gas pump (101) in the same path, The pressure sensor (105) is connected with the gas pump (101) for real-time monitoring of the output pressure.

3. The apparatus for automatically detecting a blow-by gas according to claim 2, characterized by: The wall of the control box (1) is provided with a pressure gauge (106) for displaying the pressure value measured by the pressure sensor (105).

4. The apparatus for automatically detecting a flat tire of claim 1, wherein: The elastic sheets (403) in the mounting connector (401) are arranged in a circumferential array, and adjacent elastic sheets (403) overlap each other to close the interface space.

5. The apparatus for automatically detecting a flat tire of claim 4, wherein: The elastic sheet (403) extends in a spiral line from the circumferential direction to the center direction.

6. The apparatus for automatically detecting a flat tire of claim 5, wherein: The spiral extension direction of the elastic sheet (403) is the same as the installation rotation direction of the ventilation connector (402).

7. The apparatus of claim 1, wherein: The output end of the gas supply branch (3) is adapted to multiple specifications of test pieces.

8. The apparatus of claim 7, wherein: Multiple gas supply branches (3) leading out of the same air pipe (2) have the same specification test connector or multiple specification test connectors.

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