Cabinet type air tightness detection device

Abstract

The utility model discloses a cabinet type air tightness detection device which comprises a cabinet body with Foma wheels, and a control cabinet is arranged at the lower end of the cabinet body through a cavity with a cabinet door. A test cavity used for placing an external product to be detected is arranged on the cabinet body and above the cavity, and an automatic detection structure which is electrically connected with the control cabinet and is used for carrying out an automatic leak detection test on the product to be detected is arranged on the test cavity. The automatic leakage detection device has the advantages that automatic leakage detection can be realized to improve the detection efficiency and precision, and the potential safety hazard of product quality and the workload of workers are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, and more specifically, to a cabinet-type air tightness detection device. Background Art

[0002] For industrial products, especially commonly used hardware products such as valves and pipe fittings, these products need to undergo air tightness testing before leaving the factory to determine whether their quality is qualified, thereby ensuring their safety in use.

[0003] At present, the most common method is to use the immersion method to perform air tightness testing on hardware products such as valves and pipe fittings. That is, after filling the interior of the above-mentioned products with gas at a predetermined pressure, the products are immersed in water to achieve air tightness testing. Although this testing method can meet certain needs, it still has the following problems during use:

[0004] 1. When using the traditional immersion method to implement air tightness testing, not only is the testing efficiency low, which increases the workload of the testers, but the hardware products are prone to rust due to moisture, which poses a quality safety hazard;

[0005] 2. When using the traditional water immersion method to implement air tightness testing, it is not possible to achieve automatic leak detection. In addition, it is easy to be affected by human factors, resulting in low detection accuracy, which is difficult to meet actual application needs.

[0006] How to solve the above problems has become a technical problem that needs to be solved urgently. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a cabinet-type air tightness detection device that can realize automatic leak detection to improve detection efficiency and accuracy, effectively reduce product quality and safety risks and staff workload.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0009] A cabinet-type air tightness testing device includes a cabinet body with a Forma wheel, a control cabinet is provided at the lower end of the cabinet body through a cavity with a cabinet door; a test cavity for placing an external product to be tested is provided on the cabinet body above the cavity, and an automatic detection structure is provided on the test cavity and is electrically connected to the control cabinet for performing an automatic leak test on the product to be tested.

[0010] Preferably, a safety grating electrically connected to the control cabinet is provided on the cabinet body and at both ends of the outer side of the test cavity for collecting information of a person's limbs extending into the test cavity so as to stop the operation of the automatic detection structure through the control cabinet.

[0011] Preferably, the control cabinet includes a controller arranged inside the cavity, and also includes a power switch arranged on one side end of the cabinet to electrically connect the controller to an external power supply, and a limit start button, an emergency stop button and a detection start button arranged on the outer wall below the test cavity on the cabinet and electrically connected to the controller for controlling the operation of the automatic detection structure, wherein the automatic detection structure is electrically connected to the controller.

[0012] Preferably, the automatic detection structure includes a product limiting tooling arranged in the test cavity for limiting the placement position of the external product to be inspected, and also includes an automatic detection tooling arranged on the cabinet for sealing connection with the external product to be inspected to implement an automatic leakage test, wherein the product limiting tooling and the automatic detection tooling are both electrically connected to the controller.

[0013] Preferably, the product limiting tooling includes a longitudinal sliding rod provided at the four ends inside the test cavity, and a limiting seat that can slide up and down relative to the longitudinal sliding rod is provided on the longitudinal sliding rod through a T-shaped bushing. It also includes a downward pressure cylinder provided on the cabinet above the test cavity, and the output shaft of the downward pressure cylinder is connected to the limiting seat through a floating joint to drive the limiting seat to move and cooperate with the bottom of the test cavity to implement position limitation on the product to be inspected, wherein the downward pressure cylinder is electrically connected to the controller so as to control its start and stop through the limit start button and the emergency stop button.

[0014] Preferably, the automatic detection tooling includes a gas-liquid separator arranged on the cabinet at one end of the interior of the cavity, and the gas-liquid separator tightly connects the external gas source with the external product to be inspected through an air supply pipe. A pressure regulating valve for adjusting the air supply pressure of the external gas source is provided on the air supply pipe, and the pressure regulating valve is fixedly mounted on the outer wall of the cabinet on one side above the test cavity. A solenoid valve for controlling the opening and closing of the air supply pipe is provided on the air supply pipe between the pressure regulating valve and the product to be inspected, and the solenoid valve is electrically connected to the controller to control its start and stop through the detection start button. A pressure transmitter electrically connected to the controller is also provided on the air supply pipe away from the gas-liquid separator. The tooling also includes a result display component arranged on the cabinet and electrically connected to the controller for displaying detection result information.

[0015] Preferably, the result display component includes a human-computer interaction touch screen provided on the outer wall of the cabinet and located above the pressure regulating valve for displaying detection and operation information, and also includes a qualified indicator light and an unqualified indicator light provided on the outer wall of the cabinet and located below the human-computer interaction touch screen for indicating the qualified status of the product detection, wherein the human-computer interaction touch screen, the qualified indicator light, and the unqualified indicator light are all electrically connected to the controller.

[0016] Preferably, a USB connection port electrically connected to the controller is provided on the outer wall of the cabinet and between the qualified indicator light and the unqualified indicator light, wherein the controller is connected to an external storage device through the USB connection port so as to utilize the human-computer interactive touch screen operation to guide the detection data in the controller to the external storage device.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, when it is necessary to perform air tightness testing on hardware products to be inspected, such as valves and pipe fittings, the cabinet body is pushed to move the cabinet door together with the control cabinet, the test cavity and the automatic detection structure to the designated place under the guidance of the movement of the Forma wheel. After the outlet end of the product to be inspected is sealed with an external sealing plug, the product to be inspected is wrapped with an external decompression pad and placed in the test cavity. At the same time, the air outlet end of the detection component of the automatic detection structure is tightly connected with the inlet end of the product to be inspected. The control cabinet then activates the limiting component of the automatic detection structure to firmly confine the product to be inspected in the test cavity. Then, the control cabinet activates the automatic detection structure. The detection component of the detection structure injects gas of a predetermined volume pressure into the product to be inspected and automatically performs an airtightness check, thereby replacing manual operation to realize automatic leak detection of the product to be inspected, which can effectively improve detection efficiency and detection accuracy while reducing the workload of staff; in addition, when the gas detection method of the automatic detection structure is used to replace the immersion method to implement leak detection on the product to be inspected, it can avoid the problem of quality and safety hazards of the product to be inspected due to moisture and rust due to water. Therefore, the utility model has the advantages of being able to realize automatic leak detection to improve detection efficiency and accuracy, and effectively reduce product quality and safety hazards and staff workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the internal structure of a cabinet-type air tightness detection device described in the present utility model;

[0021] Figure 2 This is a schematic diagram of the external structure of a cabinet-type air tightness detection device described in the present utility model;

[0022] Figure 3 This is a circuit connection block diagram of a cabinet-type air tightness detection device described in the utility model.

[0023] Explanation of the accompanying symbols: 1. Forma wheel, 2. Cabinet, 3. Cabinet door, 4. Cavity, 5. Control cabinet, 51. Controller, 52. Power switch, 53. Limit start button, 54. Emergency stop button, 55. Detection start button, 6. Test chamber, 7. Automatic detection structure, 71. Product limit tooling, 711. Longitudinal slide bar, 712. T-type bushing, 713. Limit seat, 714. Down-pressing cylinder, 715. Floating joint, 72. Automatic detection tooling, 721. Gas-liquid separator, 722. Air supply pipe, 723. Pressure regulating valve, 724. Solenoid valve, 725. Pressure transmitter, 726. Result display component, 100. Human-computer interaction touch screen, 200. Qualified indicator light, 300. Unqualified indicator light, 8. Safety light grid, 9. USB connection port. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] See Figures 1 to 3 As shown, a cabinet-type air tightness testing device includes a cabinet body 2 with a Forma wheel 1, and a control cabinet 5 is provided at the lower end of the cabinet body 2 through a cavity 4 with a cabinet door 3; a test cavity 6 for placing external products to be tested is provided on the cabinet body 2 above the cavity 4, and an automatic detection structure 7 is provided on the test cavity 6, which is electrically connected to the control cabinet 5 and is used to perform automatic leak testing on the products to be tested. During use, when it is necessary to perform air tightness testing on hardware products to be tested, such as valves and pipe fittings, under the guidance of the movement of the Forma wheel 1, the cabinet body 3 is pushed to move the cabinet door 3 together with the cavity 4, the control cabinet 5, the test cavity 6 and the automatic detection structure 7 to a designated location, and after the outlet end of the product to be tested is sealed by an external sealing plug, the product to be tested is wrapped with an external pressure relief pad and placed in the test cavity 6. At the same time, the air outlet end of the detection component of the automatic detection structure 7 is sealed and connected to the inlet end of the product to be tested, and then the control cabinet 5 starts the limiting component of the automatic detection structure 7 to move the product to be tested. The product is firmly confined in the test cavity 6, and then the detection component of the automatic detection structure 7 is activated through the control cabinet 5 to inject gas of a predetermined volume pressure into the product to be tested and automatically perform an airtightness check, thereby replacing manual automatic leakage detection operations on the product to be tested, which can effectively improve the detection efficiency and detection accuracy while reducing the workload of the staff; in addition, when the automatic detection structure 7 adopts the gas detection method instead of the immersion method to perform leak detection on the product to be tested, it can avoid the problem of quality and safety hazards of the product to be tested due to moisture and rust due to water, effectively improving the convenience and safety of use.

[0026] In this embodiment, a safety light barrier 8 is provided on the cabinet 2 at both ends of the outer sides of the test cavity 6 and is electrically connected to the control cabinet 5 for collecting information regarding the insertion of a person's limb into the test cavity 6, thereby activating the automatic detection mechanism 7 via the control cabinet 5. During use, when leak detection is being performed, the safety light barrier 8 collects real-time information regarding the insertion of a person's limb or other object into the test cavity 6 and synchronously transmits this information to the controller 51 of the control cabinet 5. The controller 51 then deactivates the downward pressure cylinder 714 and solenoid valve 724 of the automatic detection mechanism 7, thereby halting the leak detection operation to prevent damage to the equipment or personnel, thereby improving safety.

[0027] In this embodiment, the control cabinet 5 includes a controller 51 disposed within the cavity 4, a power switch 52 disposed on one side of the cabinet 2 and electrically connecting the controller 51 to an external power source, and a limit start button 53, an emergency stop button 54, and a detection start button 55 disposed on the outer wall of the cabinet 2 below the test cavity 6 and electrically connected to the controller 51 for controlling the operation of the automatic detection structure 7. The automatic detection structure 7 and the safety light grid 8 are electrically connected to the controller 51. The automatic detection structure 7 includes a product limit fixture 71 disposed within the test cavity 6 for limiting the placement position of an external product to be inspected, and an automatic detection fixture 72 disposed on the cabinet 2 for sealingly connecting with an external product to be inspected to perform an automatic leak test. Both the product limit fixture 71 and the automatic detection fixture 72 are electrically connected to the controller 51. The product limiting tooling 71 includes a longitudinal slide bar 711 provided at the four ends inside the test cavity 6, and a limiting seat 713 that can slide up and down relative to the longitudinal slide bar 711 is provided on the longitudinal slide bar 711 through a T-shaped bushing 712. It also includes a downward pressure cylinder 714 provided on the cabinet 2 above the test cavity 6, and the output shaft of the downward pressure cylinder 714 is connected to the limiting seat 713 through a floating joint 715 to drive the limiting seat 713 to move and cooperate with the bottom of the test cavity 6 to implement position limitation on the product to be inspected, wherein the downward pressure cylinder 714 is electrically connected to the controller 51 so as to control its start and stop through the limit start button 53 and the emergency stop button 54.During use, when a leak test is carried out on the product to be tested, the outlet end of the product to be tested is sealed by an external sealing plug, and the product to be tested is wrapped with an external pressure reducing pad and placed in the test chamber 6, and then the air outlet end of the automatic detection fixture 72 of the automatic detection structure 7 is sealed and connected with the inlet end of the product to be tested, the power switch 52 of the control cabinet 5 is connected to the external power supply, and then the limit start button 53 is operated to transmit a signal to the controller 51 to start the downward pressure cylinder 714 of the product limit fixture 71, and the controller 51 starts the downward pressure cylinder 714 to work, and uses the push rod end of the downward pressure cylinder 714 to move downward to push the floating joint 715 together with the limiting seat 713 and the T-shaped bushing 712 to move to the specified position relative to the longitudinal slide bar 711, thereby using The limiting seat 713 presses the product to be inspected into the specified position on the test cavity 6, and then operates the emergency stop button 54 to send a signal to the controller 51 to stop the operation of the downward pressure cylinder 714. The controller 51 stops the operation of the downward pressure cylinder 714 to limit the position of the product to be inspected, thereby avoiding damage caused by displacement of the product to be inspected during subsequent leak detection. Then, the detection start button 55 is operated to send a signal to the controller 51 to start the automatic detection tooling 72. The controller 51 starts the automatic detection tooling 72 to inject gas of a predetermined volume pressure into the product to be inspected and automatically performs an airtightness check, thereby replacing manual labor to realize automatic leak detection of the product to be inspected, which can effectively improve the detection efficiency and detection accuracy while reducing the workload of the staff.

[0028] In this embodiment, the automatic detection tool 72 includes a gas-liquid separator 721 provided on the cabinet 2 at one end of the interior of the cavity 4, and the gas-liquid separator 721 connects the external gas source with the external product to be inspected through an air supply pipe 722. A pressure regulating valve 723 for adjusting the gas supply pressure of the external gas source is provided on the air supply pipe 722, and the pressure regulating valve 723 is fixedly installed on the outer wall of the cabinet 2 above the test cavity 6. A solenoid valve 724 is provided between the pressure regulating valve 723 and the product to be inspected for controlling the opening and closing of the air supply pipe 722. The solenoid valve 724 is electrically connected to the controller 51 so that its start and stop can be controlled by the inspection start button 55. A pressure transmitter 725 is also provided on the air supply pipe 722 at an end away from the gas-liquid separator 721 and is electrically connected to the controller 51. The system also includes a result display assembly 726 provided on the cabinet 2 and electrically connected to the controller 51 for displaying inspection result information. The result display assembly 726 includes a human-computer interaction touch screen 100 provided on the outer wall of the cabinet 2 and above the pressure regulating valve 723 for displaying inspection and control information. It also includes a pass indicator light 200 and a fail indicator light 300 provided on the outer wall of the cabinet 2 and below the human-computer interaction touch screen 100 for indicating the qualified status of the product inspection. The human-computer interaction touch screen 100, the pass indicator light 200, and the fail indicator light 300 are all electrically connected to the controller 51.During use, after the gas supply is adjusted to a predetermined pressure value in advance by the pressure regulating valve 723 of the automatic detection tooling 72, the detection start button 55 is operated to transmit a signal to the controller 51 to start the operation of the solenoid valve 724. The solenoid valve 724 is started and opened by the controller 51. After the gas-liquid separator 721 separates the external gas source into gas and liquid, the gas of a predetermined volume pressure is transmitted to the interior of the product to be inspected through the gas supply pipe 722 under the pressure monitoring of the pressure transmitter 725. The solenoid valve 724 is then closed by the controller 51 to perform an air tightness inspection. At the same time, the detection process data is synchronously transmitted to the human-computer interaction touch screen 100 of the result display component 726 by the controller 51 for display by the inspector. In addition, the internal pressure information of the product to be inspected is collected and monitored in real time through the pressure transmitter 725 and transmitted to the controller 51 for processing. If the collected pressure is gradually decreasing, it is judged that If the product to be inspected has leakage, it is an unqualified product. The controller 51 starts the unqualified indicator light 300 to emit light to warn the inspector that the product is unqualified, so that the inspector can follow up and handle it in time. On the contrary, if the collected pressure remains unchanged, the product to be inspected is judged to be a qualified product. The controller 51 starts the qualified indicator light 200 to emit light to remind the inspector that the product is qualified, so that the inspector can follow up and handle it in time. In this way, the air tightness inspection of the product to be inspected is automatically realized, thereby replacing the manual automatic leak detection operation of the product to be inspected, which can effectively improve the detection efficiency and detection accuracy while reducing the workload of the staff. In addition, when the automatic detection structure 7 adopts the gas detection method instead of the immersion method to detect the leak of the product to be inspected, it can also avoid the problem of quality and safety hazards of the product to be inspected due to moisture and rust due to water, effectively improving the convenience and safety of use.

[0029] In this embodiment, a USB connection port 9 electrically connected to the controller 51 is provided on the outer wall of the cabinet 2 and between the qualified indicator light 200 and the unqualified indicator light 300, wherein the controller 51 is connected to an external storage device through the USB connection port 9 to utilize the human-computer interaction touch screen 100 to operate to guide the detection data in the controller 51 to the external storage device.

[0030] When this embodiment is used specifically, first, when it is necessary to perform air tightness testing on hardware products to be inspected, such as valves and pipe fittings, under the guidance of the movement of the Forma wheel 1, the cabinet body 3 is pushed to move the cabinet door 3 together with the cavity 4, the control cabinet 5 and the test cavity 6 and the automatic detection structure 7, the safety grating 8, and the USB connection port 9 to the designated place; secondly, the outlet end of the product to be inspected is sealed by an external sealing plug, and the product to be inspected is wrapped with an external pressure-reducing pad and placed in the test cavity 6, and then the outlet end of the automatic detection tool 72 of the automatic detection structure 7 is sealed and connected to the inlet end of the product to be inspected, the power switch 52 of the control cabinet 5 is connected to the external power supply, and then the limit start button 53 is operated to press the controller. 51 transmits a signal to start the operation of the pressing cylinder 714 of the product limiting tooling 71, and the controller 51 starts the operation of the pressing cylinder 714. The push rod end of the pressing cylinder 714 moves downward to push the floating joint 715 together with the limiting seat 713 and the T-shaped bushing 712 to move relative to the longitudinal slide bar 711 to a specified position, so that the product to be tested is pressed and buckled at the specified position on the test cavity 6 by the limiting seat 713. Then, the emergency stop button 54 is operated to transmit a signal to stop the operation of the pressing cylinder 714 to the controller 51, and the controller 51 stops the operation of the pressing cylinder 714 to limit the position of the product to be tested, thereby avoiding damage to the product to be tested due to displacement during subsequent leak detection.Then, after the gas supply is adjusted to a predetermined pressure value in advance by the pressure regulating valve 723 of the automatic detection tool 72, the detection start button 55 is operated to transmit a signal to the controller 51 to start the operation of the solenoid valve 724. The solenoid valve 724 is started and opened by the controller 51. After the gas-liquid separator 721 separates the external gas source into gas and liquid, the gas of the predetermined volume pressure is transmitted to the interior of the product to be inspected through the gas supply pipe 722 under the pressure monitoring of the pressure transmitter 725. The solenoid valve 724 is then closed by the controller 51 to implement the air tightness inspection. At the same time, the detection process data is synchronized through the controller 51. The result is transmitted to the human-computer interaction touch screen 100 of the result display component 726 for viewing by the inspector, and the internal pressure information of the product to be inspected is collected and monitored in real time through the pressure transmitter 725 and transmitted to the controller 51 for processing. If the collected pressure gradually decreases, it is judged that the product to be inspected has a leak and is an unqualified product. The controller 51 starts the unqualified indicator light 300 to light up to warn the inspector that the product is unqualified, so that the inspector can follow up and handle it in time. On the contrary, if the collected pressure remains unchanged, it is judged that the product to be inspected is a qualified product, and the controller 51 starts the qualified indicator light 2 00 emits light to remind the inspector that the product is qualified, so that the inspector can follow up and deal with it in time, thereby automatically realizing the airtightness inspection of the product to be inspected, thereby replacing the manual automatic leak detection operation of the product to be inspected, which can effectively improve the detection efficiency and detection accuracy, and also reduce the workload of the staff. In addition, when the automatic detection structure 7 adopts the gas detection method instead of the immersion method to detect the leak of the product to be inspected, it can also avoid the problem of quality and safety hazards of the product to be inspected due to moisture and rust due to water, which effectively improves the convenience and safety of use; finally, when implementing the leak detection, by installing The full optical grating 8 collects real-time data about external personnel's limbs or other objects protruding into the test chamber 6 and synchronously transmits it to the controller 51 in the control cabinet 5. The controller 51 then stops the operation of the downward pressure cylinder 714 and solenoid valve 724 of the automatic detection mechanism 7, thereby halting the leak detection operation to prevent damage to the equipment or personnel, further improving user safety. Furthermore, the controller 51 is connected to an external storage device via the USB port 9, allowing the detection data stored in the controller 51 to be transferred to the external storage device via the human-computer interactive touch screen 100 for easy viewing, effectively improving user convenience.

[0031] In summary, the utility model adopts the above structure, which has the advantages of being able to realize automatic leak detection to improve detection efficiency and accuracy, and effectively reduce product quality and safety risks and staff workload.

[0032] Those skilled in the art can make various other corresponding changes and deformations based on the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of this utility model.

Claims

1. A cabinet-type air tightness detection device, comprising a cabinet (2) with a Forma wheel (1), a control cabinet (5) provided at the lower end of the cabinet (2) through a cavity (4) with a cabinet door (3); characterized in that: A test cavity (6) for placing an external product to be tested is provided on the cabinet (2) above the cavity (4), and an automatic detection structure (7) electrically connected to the control cabinet (5) for performing an automatic leak test on the product to be tested is provided on the test cavity (6).

2. The cabinet-type air tightness detection device according to claim 1, characterized in that: A safety grating (8) is provided on the cabinet (2) and at both ends of the outer side of the test cavity (6). The safety grating is electrically connected to the control cabinet (5) and is used to collect information about a person's limbs extending into the test cavity (6) so as to stop the operation of the automatic detection structure (7) through the control cabinet (5).

3. The cabinet-type air tightness detection device according to claim 2, characterized in that: The control cabinet (5) includes a controller (51) arranged inside the cavity (4), a power switch (52) arranged at one side of the cabinet (2) for electrically connecting the controller (51) to an external power supply, and a limit start button (53), an emergency stop button (54), and a detection start button (55) arranged on the outer wall below the test cavity (6) on the cabinet (2) and electrically connected to the controller (51) for controlling the operation of the automatic detection structure (7), wherein the automatic detection structure (7) is electrically connected to the controller (51).

4. The cabinet-type air tightness detection device according to claim 3, characterized in that: The automatic detection structure (7) includes a product limiting fixture (71) provided in the test chamber (6) for limiting the placement position of an external product to be detected, and also includes an automatic detection fixture (72) provided on the cabinet (2) for being tightly connected to the external product to be detected to perform an automatic leak test, wherein the product limiting fixture (71) and the automatic detection fixture (72) are both electrically connected to the controller (51).

5. The cabinet-type air tightness detection device according to claim 4, characterized in that: The product limiting fixture (71) includes a longitudinal slide bar (711) provided at four ends inside the test cavity (6), a limiting seat (713) capable of sliding up and down relative to the longitudinal slide bar (711) is provided on the longitudinal slide bar (711) through a T-shaped bushing (712), and also includes a downward pressure cylinder (714) provided on the cabinet (2) above the test cavity (6), and the output shaft of the downward pressure cylinder (714) is connected to the limiting seat (713) through a floating joint (715) to drive the limiting seat (713) to move and cooperate with the bottom of the test cavity (6) to implement position limitation on the product to be inspected, wherein the downward pressure cylinder (714) is electrically connected to the controller (51) so as to control its start and stop through the limit start button (53) and the emergency stop button (54).

6. The cabinet-type air tightness detection device according to claim 4, characterized in that: The automatic detection tool (72) includes a gas-liquid separator (721) provided on the cabinet (2) at one end inside the cavity (4), and the gas-liquid separator (721) tightly connects an external gas source with an external product to be inspected via an air supply pipe (722). A pressure regulating valve (723) for regulating the gas supply pressure of the external gas source is provided on the air supply pipe (722), and the pressure regulating valve (723) is fixedly installed on the outer wall of the cabinet (2) above the test cavity (6). A solenoid valve (724) for controlling the opening and closing of the air supply pipe (722) is provided between the air supply pipe (723) and the product to be inspected, and the solenoid valve (724) is electrically connected to the controller (51) so as to control its start and stop through the inspection start button (55). A pressure transmitter (725) electrically connected to the controller (51) is also provided on the air supply pipe (722) at one end away from the gas-liquid separator (721). A result display component (726) is also provided on the cabinet (2) and electrically connected to the controller (51) for displaying the inspection result information.

7. The cabinet-type air tightness detection device according to claim 6, characterized in that: The result display component (726) includes a human-machine interactive touch screen (100) provided on the outer wall of the cabinet (2) and located above the pressure regulating valve (723) for displaying detection and control information, and also includes a qualified indicator light (200) and a failed indicator light (300) provided on the outer wall of the cabinet (2) and located below the human-machine interactive touch screen (100) for indicating the qualified status of the product test, wherein the human-machine interactive touch screen (100), the qualified indicator light (200), and the failed indicator light (300) are all electrically connected to the controller (51).

8. The cabinet-type air tightness detection device according to claim 7, characterized in that: A USB connection port (9) electrically connected to the controller (51) is provided on the outer wall of the cabinet (2) and between the qualified indicator light (200) and the unqualified indicator light (300), wherein the controller (51) is connected to an external storage device via the USB connection port (9) so as to guide the detection data in the controller (51) to the external storage device by operating the human-computer interaction touch screen (100).

Images