Air leakage detection device for inflatable product

Abstract

The utility model relates to an air leakage detection device for an inflatable product, and the device comprises a mounting rack which is provided with an inlet / outlet, an avoiding space, and a positioning space, and the bottom of the positioning space is provided with a bottom plate; the test cover is in sliding connection with the mounting frame, and the test cover can abut against and be sealed with the bottom plate; a plurality of detection holes are distributed in the test cover and are communicated with an inner cavity of the test cover; the lifting driving assembly drives the test cover to do lifting movement; a gas leakage detection instrument; an air inlet of the air leakage detection instrument is communicated with all the detection holes through the detection pipeline; the residual air clearing mechanism comprises a clean air supply assembly, a second air valve, an exhaust fan and a ventilation assembly, and the clean air supply assembly communicates with the detection pipeline through the second air valve; the test cover is provided with an exhaust port, and the ventilation assembly can block the exhaust port. According to the utility model, the gas leakage detection device can be cleaned, residual detection gas in the gas leakage detection device can be removed, and the accuracy and continuity of gas leakage detection of inflatable products can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of air leakage detection of inflatable products, in particular to an air leakage detection device for inflatable products. Background Art

[0002] Common inflatable products on the market, such as inflatable beds, inflatable tables, inflatable boats, inflatable toys, etc., are widely favored by consumers due to their advantages such as light weight, foldability, easy to carry, and good comfort. They have a very wide range of applications and have become one of the must-have products for people at home and traveling, with extremely high market prospects. The air tightness of inflatable products is a key indicator for judging the product quality of inflatable products. Whether the air tightness is excellent directly affects consumers' experience of using inflatable products. Therefore, most inflatable products will be tested for air tightness before being put on the market.

[0003] Gas detection is one of the most commonly used air tightness detection methods, and the most widely used gas detection method is helium detection. Existing leak detection devices usually include a test hood and a helium mass spectrometer, wherein a plurality of detection holes are arranged in the test hood, and these detection holes are connected to the helium mass spectrometer pipeline. At the same time, a control valve is also arranged on the pipeline to enable each detection hole to be connected to the helium mass spectrometer in sequence. After filling the inflatable product with helium, the inflatable product is placed in the test hood and sealed. If there is a leak in the inflatable product, the helium mass spectrometer will detect the helium and can roughly determine the location of the leak.

[0004] However, after the existing helium detection device detects a gas leakage in the inflatable product, helium will remain in the test hood and the pipeline, which will affect the next product detection. Utility Model Content

[0005] The utility model aims to provide an inflatable product leakage detection device, which can clean the leakage detection device, remove residual detection gas in the leakage detection device, and ensure the accuracy and consistency of the inflatable product leakage detection.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An inflatable product leakage detection device, comprising:

[0008] A mounting frame, wherein the mounting frame is provided with an inlet and outlet, an escape space, and a positioning space for placing an inflatable product, wherein the positioning space is located below the escape space, the inlet and outlet are connected to the positioning space, and the positioning space is connected to the escape space; and a bottom plate is provided at the bottom of the positioning space;

[0009] A test cover is slidably connected to the mounting frame. Before performing air leakage detection, the test cover is placed in the avoidance space. When performing air leakage detection, the test cover slides into the positioning space and abuts against the bottom plate. When the test cover abuts against the bottom plate, the cover opening of the test cover is sealed by the bottom plate. A plurality of detection holes are arranged on the test cover, and the detection holes are connected to the inner cavity of the test cover.

[0010] A lifting drive assembly drives the test cover to move up and down;

[0011] Leak detection equipment;

[0012] A detection pipeline, wherein the air inlet of the air leakage detection instrument is connected to all the detection holes through the detection pipeline;

[0013] The residual air cleaning mechanism includes a clean air supply component, a second air valve, at least one exhaust fan and at least one ventilation component. The clean air supply component is connected to the detection pipeline through the second air valve; at least one exhaust port is provided on the test cover, each ventilation component corresponds to at least one exhaust port, and the ventilation component can block the exhaust port; each exhaust fan is provided corresponding to at least one ventilation component.

[0014] After the above settings, by providing a plurality of detection holes on the test cover, and these detection holes are connected to the air inlet of the air leakage detection instrument through the detection pipeline, it can be detected more quickly when the inflatable product leaks, thereby improving the detection efficiency. After the inflatable product detection is completed, the second air valve, ventilation assembly and exhaust fan are opened. At this time, clean air flows through the second air valve, detection pipeline, inner cavity of the test cover, exhaust port and exhaust fan in sequence, thereby cleaning the test cover and detection pipeline, removing the residual detection gas in the device, and ensuring the accuracy of the next inflatable product leakage detection. In addition, because the residual detection gas in the device can be quickly removed, the next inflatable product leakage detection can be quickly started, and the detection connection is faster, which is conducive to improving the detection efficiency.

[0015] The test hood is provided with N detection areas on its surface, and N≥2; a number of detection holes are evenly distributed in each of the detection areas; the detection pipeline includes a number of hoses, each of the detection holes corresponds to a hose, one end of the hose passes through the detection hole and extends into the inner cavity of the test hood, and the hose is sealed and connected to the detection hole, and the other end of the hose is connected to the air inlet of the leakage detection instrument. With this arrangement, when the specification of the inflatable product is smaller than the hood body, the nozzle of the hose can also be close to or approach the surface of the inflatable product, and if leakage occurs in the area near the nozzle of the hose, it can be detected more quickly. When the specification of the inflatable product is close to the hood body, the hose can be bent, and the nozzle of the hose is not easily blocked by the inflatable product, thereby ensuring the reliability of the detection.

[0016] The end of the hose extending into the inner cavity of the test hood is arranged obliquely relative to the hood surface of the hood body, or the end of the hose extending into the inner cavity of the test hood is arranged in an arc shape. Through the above arrangement, the end of the hose extending into the inner cavity of the test hood can be better adapted to inflatable products of different specifications, and the pipe opening of the hose is less likely to be blocked by the inflatable product.

[0017] It also includes an air pump and a manifold and a manifold arranged in one-to-one correspondence with the detection areas, the manifold and the manifold are placed outside the test cover; all the hoses corresponding to each detection area are connected to one end of the manifold through the manifold, and the other end of the manifold is connected to the air inlet of the leakage detection instrument through the air pump; each of the manifolds is provided with a first air valve. By setting the manifold, the detection points of the same detection area (the pipe opening at one end of the hose extending into the inner cavity of the test cover) can be collected for detection, thereby improving the detection efficiency, and the setting of the first air valve can be used to detect each detection area independently, which is conducive to determining the approximate location of the leak, and the gas flow rate can be increased by setting the air pump, which is conducive to improving the detection speed.

[0018] The device also includes an exhaust pipe and a third air valve, wherein the exhaust pipe is connected to the detection pipeline through the third air valve, and the third air valve is arranged near the air inlet of the air leakage detection instrument. By arranging the exhaust pipe, most of the flow channels of the detection pipeline can be cleaned, thereby ensuring the accuracy of air leakage detection of inflatable products.

[0019] The ventilation assembly includes a second cylinder, two connecting rods, at least one blocking plate and four swing arms, the two connecting rods are arranged in parallel with each other, and a swing arm is arranged at each end of each connecting rod, one end of the swing arm is pivoted to the connecting rod, and the other end of the swing arm is pivoted to the test cover; the blocking plate connects the two connecting rods at the same time; the seat of the second cylinder is pivoted to the test cover, and the push rod of the second cylinder is pivoted to one of the connecting rods; when the push rod of the second cylinder is retracted, the blocking plate covers the exhaust port and seals it, and when the push rod of the second cylinder is extended, the blocking plate is away from the exhaust port. The ventilation assembly arranged in this way has a simple structure and is easy to control.

[0020] The outer periphery of the exhaust port is provided with a sealing ring; the blocking plate is also provided with a plurality of hollow holes that are conducive to exhaust, and when the blocking plate covers the exhaust port, the hollow holes are not connected to the exhaust port. By providing a sealing ring, the sealing of the exhaust port during the detection process can be ensured, and by providing a hollow hole, the residual detection gas in the device can be quickly exhausted.

[0021] The positioning space is used to place the inflatable product vertically. This arrangement can make the device occupy a smaller area.

[0022] The lifting drive assembly includes a first cylinder, a chain, a first sprocket and a second sprocket. The first cylinder is arranged on the side of the mounting frame, and the telescopic direction of the first cylinder is the vertical direction; the first sprocket and the second sprocket are both arranged on the top of the mounting frame and are rotatably connected with the mounting frame, the first sprocket is located above the first cylinder, and the second sprocket is located above the test cover; the chain is meshed with the first sprocket and the second sprocket, and one end of the chain is connected to the push rod of the first cylinder, and the other end of the chain is connected to the top of the test cover. After such arrangement, compared with the method of directly using the cylinder to drive the test cover to move, the driving method of the first cylinder in conjunction with the chain, the first sprocket and the second sprocket has a more compact structure, the test cover is balanced in force, and the movement is smoother. In addition, the control of the movement stroke of the test cover is more flexible, and it is easy to ensure the sealing between the test cover and the bottom plate.

[0023] After adopting the above scheme, the utility model is provided with a plurality of detection holes on the test cover, and these detection holes are connected to the air inlet of the air leakage detection instrument through the detection pipeline, so that when the inflatable product leaks, it can be detected more quickly, thereby improving the detection efficiency. After the inflatable product detection is completed, the second air valve, the ventilation assembly and the exhaust fan are opened. At this time, the clean air flows through the second air valve, the detection pipeline, the inner cavity of the test cover, the exhaust port and the exhaust fan in sequence, thereby achieving the cleaning of the test cover and the detection pipeline, removing the residual detection gas in the device, and ensuring the accuracy of the next inflatable product leakage detection. In addition, because the residual detection gas in the device can be quickly removed, the next inflatable product leakage detection can be quickly started, and the detection connection is faster, which is conducive to improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the utility model;

[0025] Figure 2 It is a cross-sectional view of the utility model;

[0026] Figure 3 A simplified diagram of the connection of the lifting drive assembly;

[0027] Figure 4 is a schematic diagram of the test hood;

[0028] Figure 5 is a cross-sectional view of the test cover;

[0029] Figure 6 is a schematic diagram of a ventilation assembly;

[0030] Figure 7 is a cross-sectional view of a ventilation assembly;

[0031] Figure 8 This is a connection diagram of the clean air supply component and the detection pipeline.

[0032] Marking Description:

[0033] Mounting frame 10, avoidance space 11, positioning space 12, bottom plate 13;

[0034] Test cover 20, detection hole 21, exhaust port 22, sealing ring 23;

[0035] A first cylinder 31, a chain 32, a first sprocket 33, and a second sprocket 34;

[0036] Hose 41, manifold 42, manifold 43, air pump 44, first air valve 45;

[0037] Leak detection instrument 50;

[0038] Clean air supply assembly 61, second air valve 62, third air valve 63, exhaust pipe 64;

[0039] Ventilation assembly 70, second cylinder 71, connecting rod 72, swing arm 73, blocking plate 74, hollow hole 75;

[0040] Exhaust fan 80;

[0041] Inflatable products 90. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0044] like Figure 1-8 As shown, the utility model discloses a gas leakage detection device for inflatable products, which includes: a mounting frame 10, a test cover 20, a lifting drive assembly, a gas leakage detection instrument 50, a detection pipeline and a residual gas cleaning mechanism. The gas leakage detection instrument 50 can be a helium mass spectrometer.

[0045] The mounting frame 10 is provided with an inlet and outlet, an escape space 11, and a positioning space 12 for vertically placing an inflatable product 90. The positioning space 12 is located below the escape space 11. The positioning space 12 is connected to the escape space 11, and the inlet and outlet are connected to the positioning space 12. Two inlets and outlets can be provided, one inlet and outlet is provided at the front and back of the positioning space 12, and of course, only one inlet and outlet can be provided. A bottom plate 13 is provided at the bottom of the positioning space 12, and the bottom plate 13 is used to block the cover opening of the test cover 20. The test cover 20 is connected to the mounting frame 10 by sliding up and down. When the test cover 20 moves down to the limit, the test cover 20 can abut against the bottom plate 13. At this time, the gap between the two is sealed. A sealing gasket can be provided on the cover opening of the test cover 20 and / or the bottom plate 13 to enhance the sealing. Before the air leakage detection is performed, the test cover 20 is placed in the escape space 11, and will not interfere with the inflatable product 90 entering and exiting the positioning space 12. When the air leakage detection is performed, the test cover 20 slides into the positioning space 12 and abuts against the bottom plate 13.

[0046] The lifting drive assembly is used to drive the test cover 20 to move up and down. Specifically, the lifting drive assembly includes a first cylinder 31, a chain 32, a first sprocket 33 and a second sprocket 34. The seat of the first cylinder is locked on the side of the mounting frame 10. The first cylinder 31 is vertically arranged, that is, its telescopic direction is the vertical direction. The first sprocket 33 and the second sprocket 34 are both arranged on the top of the mounting frame 10 and are rotatably connected to the mounting frame 10. The first sprocket 33 is located above the first cylinder 31, and the second sprocket 34 is located above the test cover 20. The chain 32 is meshed with the first sprocket 33 and the second sprocket 34, and one end of the chain 32 is connected to the push rod of the first cylinder 33, and the other end of the chain 32 is connected to the top of the test cover 20. When the push rod of the first cylinder 33 is retracted, the chain 32 is pulled to lift the test cover 20. When the push rod of the first cylinder 33 is extended, the test cover 20 falls until it is pressed against the bottom plate 13. After such arrangement, compared with the method of directly using a cylinder to drive the test cover 20 to move, the driving method of the first cylinder 31 cooperating with the chain 32, the first sprocket 33 and the second sprocket 34 has a more compact structure, the test cover 20 is subjected to balanced force, and the movement is smoother. In addition, the control of the movement stroke of the test cover 20 is more flexible, and it is easy to ensure the sealing between the test cover 20 and the base plate 13.

[0047] N detection areas are provided on the cover surface of the test cover 20, and N≥2. A plurality of detection holes 21 are evenly distributed in each detection area, and the detection holes 21 are connected to the inner cavity of the test cover 20. A hose 41 is provided in each detection hole 21, and one end of the hose 41 passes through the detection hole 21 and extends into the inner cavity of the test cover 20. The end of the hose 41 extending into the inner cavity of the test cover 20 is arranged obliquely relative to the cover surface of the cover body, or the end of the hose 41 extending into the inner cavity of the test cover 20 is arranged in an arc shape, so that the hose 41 can better adapt to inflatable products 90 of different specifications. When the thickness of the inflatable product 90 is thin, the pipe mouth of the hose 41 can also be closer to the inflatable product 90. If a leak occurs, the detection gas can enter the hose 41 more quickly. In addition, the pipe mouth of the hose 41 is less likely to be blocked by the inflatable product 90. The distance between the end of the hose 41 extending into the inner cavity of the test cover 20 and the inner wall of the test cover 20 is preferably 1-10 cm, so as to ensure that the end of the hose 41 extending into the inner cavity of the test cover 20 can better adapt to inflatable products 90 of different specifications.

[0048] The hose 41 is sealed and connected to the detection hole 21, and the sealing can be ensured by applying sealant. The hose 41 in the same detection area, one end of which is located outside the test cover 20 is connected to a manifold 42, and at the same time, the manifold 42 is connected to one end of the manifold 43, and all the manifolds 43 are connected to the air inlet of the vacuum pump 44, and the air outlet of the vacuum pump 44 is connected to the air inlet of the leakage detection instrument 50. In this case, the manifold 42 can be regarded as a multi-way, and the manifold 42 can be fixed on the outside of the test cover 20 to ensure the stability of the connection relationship between the hose 41 and it. The hose 41, the manifold 42, the manifold 43 and the vacuum pump 44 constitute a detection pipeline. A first air valve 45 is provided on each manifold 43. By controlling each first air valve 45 to open in sequence, each detection area can be detected independently, which is conducive to determining the approximate location of the leak.

[0049] If the inflatable product 90 leaks, after the inflatable product 90 is taken out, residual detection gas may still remain in the detection pipeline and the test cover 20. The sensitivity of the leakage detection instrument 50 is usually very high. In order to avoid affecting subsequent detection, it is necessary to clean the detection pipeline and the test cover 20 to remove the residual detection gas, so a residual gas cleaning mechanism is provided.

[0050] The residual air cleaning mechanism includes a clean air supply component 61, a second air valve 62, an exhaust fan 80 and a ventilation component 70. The clean air supply component 61 is connected to the detection pipeline through the second air valve 62, and the connection node can be at the front and rear ends of the air pump 44. The clean air supply component 61 can be a compressed air storage tank or a compressed air supply pipe. The detection pipeline and the test cover 20 can be flushed by introducing compressed air. In order to ensure the comprehensive flushing of the detection pipeline, an exhaust pipe 64 and a third air valve 63 are also provided. The exhaust pipe 64 is connected to the detection pipeline through the third air valve 63, and the third air valve 63 is provided near the air inlet of the air leakage detection instrument 50.

[0051] At least one exhaust port 22 is provided on the test cover 20, each ventilation assembly 70 corresponds to at least one exhaust port 22, and the ventilation assembly 70 can block the exhaust port 22, and each exhaust fan is provided corresponding to at least one ventilation assembly 70. In this case, the exhaust port 22 is at the top of the test cover 20, eight exhaust ports 22 are provided, two sets of ventilation assemblies 70 are provided, two sets of exhaust fans are provided, one set of exhaust fans corresponds to one ventilation assembly 70, and one set of ventilation assembly 70 corresponds to four exhaust ports 22. The exhaust fans are installed on the top of the mounting frame 10, and the exhaust fans are provided opposite to the ventilation assemblies 70.

[0052] The ventilation assembly 70 includes a second cylinder 71, two connecting rods 72, two blocking plates 74 and four swing arms 73. The two connecting rods 72 are parallel to each other and spaced apart. A swing arm 73 is correspondingly arranged at both ends of each connecting rod 72. One end of the swing arm 73 is pivotally connected to the connecting rod 72, and the other end of the swing arm 73 is pivotally connected to the test cover 20. One blocking plate 74 corresponds to two exhaust ports 22, and the blocking plate 74 connects the two connecting rods 72 at the same time. When the swing arm 73 is perpendicular to the blocking plate 74, the blocking plate 74 is away from the exhaust port 22, and the exhaust port 22 is opened. When the swing arm 73 is parallel to the blocking plate 74, the blocking plate 74 covers the exhaust port 22. A sealing ring 23 is arranged on the outer periphery of the exhaust port 22 to seal the gap between the blocking plate 74 and the test cover 20 to ensure that the exhaust port 22 is reliably blocked.

[0053] The seat of the second cylinder 71 is pivotally connected to the test cover 20 and is located below a connecting rod 72. The push rod of the second cylinder 71 is pivotally connected to another connecting rod 72. When the push rod of the second cylinder 71 is retracted, the blocking plate 74 covers the exhaust port 22 and seals it. When the push rod of the second cylinder 71 is extended, the blocking plate 74 is away from the exhaust port 22. There is a gap between the two blocking plates 74 to facilitate the discharge of the test gas in the test cover 20. In addition, a number of hollow holes 75 that are conducive to exhaust can be set on the blocking plate 74, as long as the hollow holes 75 are not connected to the exhaust port 22 when the blocking plate 74 covers the exhaust port 22.

[0054] When the second air valve 62 and the third air valve 63 are closed and the sealing plate 74 covers the exhaust port 22, the normal leakage detection will not be interfered with. The detection pipeline and the test cover 20 can be cleaned after each leakage detection is completed, or only cleaned after a leakage is detected.

[0055] The key point of the utility model is that the utility model can make the inflatable product 90 stand upright for air leakage detection, thereby making the device occupy a smaller area. By providing a plurality of detection holes 21 on the test cover 20, and these detection holes 21 are connected to the air inlet of the air leakage detection instrument 50 through the detection pipeline, when the inflatable product 90 leaks, it can be detected more quickly, thereby improving the detection efficiency.

[0056] By extending one end of the hose 41 into the inner cavity of the test cover 20, when the size of the inflatable product 90 is smaller than the cover body, the mouth of the hose 41 can also be close to or approach the surface of the inflatable product 90, and if there is a leak in the area near the mouth of the hose 41, it can be detected more quickly. When the size of the inflatable product 90 is close to the cover body, the hose 41 can be bent, and the mouth of the hose 41 is not easily blocked by the inflatable product 90, which can ensure the reliability of the detection.

[0057] After the inflatable product 90 is tested, the second air valve 62, the ventilation assembly 70 and the exhaust fan are opened, and clean air flows through the second air valve 62, the test pipeline, the inner cavity of the test cover 20, the exhaust port 22 and the exhaust fan in sequence, thereby cleaning the test cover 20 and the test pipeline, removing the residual test gas in the device, and ensuring the accuracy of the next leakage test of the inflatable product 90. In addition, because the residual test gas in the device can be quickly removed, the next leakage test of the inflatable product 90 can be quickly started, and the test connection is faster, which is conducive to improving the detection efficiency.

[0058] The above description is only an embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for detecting air leakage of inflatable products, characterized in that: include: A mounting frame, wherein the mounting frame is provided with an inlet and outlet, an escape space, and a positioning space for placing an inflatable product, wherein the positioning space is located below the escape space, the inlet and outlet are connected to the positioning space, and the positioning space is connected to the escape space; and a bottom plate is provided at the bottom of the positioning space; A test cover is slidably connected to the mounting frame. Before performing air leakage detection, the test cover is placed in the avoidance space. When performing air leakage detection, the test cover slides into the positioning space and abuts against the bottom plate. When the test cover abuts against the bottom plate, the cover opening of the test cover is sealed by the bottom plate. A plurality of detection holes are arranged on the test cover, and the detection holes are connected to the inner cavity of the test cover. A lifting drive assembly drives the test cover to move up and down; Leak detection equipment; A detection pipeline, wherein the air inlet of the air leakage detection instrument is connected to all the detection holes through the detection pipeline; The residual air cleaning mechanism includes a clean air supply component, a second air valve, at least one exhaust fan and at least one ventilation component. The clean air supply component is connected to the detection pipeline through the second air valve; at least one exhaust port is provided on the test cover, each ventilation component corresponds to at least one exhaust port, and the ventilation component can block the exhaust port; each exhaust fan is provided corresponding to at least one ventilation component.

2. The inflatable product leakage detection device according to claim 1, characterized in that: The cover surface of the test cover is provided with N detection areas, and N≥2; a plurality of detection holes are evenly distributed in each of the detection areas; the detection pipeline includes a plurality of hoses, each of the detection holes corresponds to a hose, one end of the hose passes through the detection hole and extends into the inner cavity of the test cover, and the hose is sealed and connected to the detection hole, and the other end of the hose is connected to the air inlet of the leakage detection instrument.

3. The inflatable product leakage detection device according to claim 2, characterized in that: The end of the hose extending into the inner cavity of the test cover is arranged obliquely relative to the cover surface of the cover body, or the end of the hose extending into the inner cavity of the test cover is arranged in an arc shape.

4. The inflatable product leakage detection device according to claim 2, characterized in that: It also includes an air suction pump and a manifold and a manifold arranged in one-to-one correspondence with the detection areas, the manifold and the manifold are placed outside the test cover; all the hoses corresponding to each of the detection areas are connected to one end of the manifold via the manifold, and the other end of the manifold is connected to the air inlet of the leakage detection instrument via the air suction pump; each of the manifolds is provided with a first air valve.

5. The inflatable product leakage detection device according to claim 1, characterized in that: It also includes an exhaust pipe and a third air valve. The exhaust pipe is connected to the detection pipeline through the third air valve, and the third air valve is arranged close to the air inlet of the leakage detection instrument.

6. The inflatable product leakage detection device according to claim 1, characterized in that: The ventilation assembly includes a second cylinder, two connecting rods, at least one blocking plate and four swing arms, the two connecting rods are arranged parallel to each other, and a swing arm is correspondingly arranged at both ends of each connecting rod, one end of the swing arm is pivoted to the connecting rod, and the other end of the swing arm is pivoted to the test cover; the blocking plate is connected to the two connecting rods at the same time; the seat body of the second cylinder is pivoted to the test cover, and the push rod of the second cylinder is pivoted to one of the connecting rods; when the push rod of the second cylinder is retracted, the blocking plate covers the exhaust port and seals it, and when the push rod of the second cylinder is extended, the blocking plate is away from the exhaust port.

7. The inflatable product leakage detection device according to claim 6, characterized in that: A sealing ring is arranged at the periphery of the exhaust port; a plurality of hollow holes which are conducive to exhaust are also arranged on the blocking plate, and when the blocking plate covers the exhaust port, the hollow holes are not connected to the exhaust port.

8. The inflatable product leakage detection device according to claim 1, characterized in that: The positioning space is used to vertically place the inflatable product.

9. The inflatable product leakage detection device according to claim 1, characterized in that: The lifting drive assembly includes a first cylinder, a chain, a first sprocket and a second sprocket. The first cylinder is arranged on the side of the mounting frame, and the extension and retraction direction of the first cylinder is the vertical direction; the first sprocket and the second sprocket are both arranged on the top of the mounting frame and are rotatably connected to the mounting frame, the first sprocket is located above the first cylinder, and the second sprocket is located above the test cover; the chain is meshed with the first sprocket and the second sprocket, and one end of the chain is connected to the push rod of the first cylinder, and the other end of the chain is connected to the top of the test cover.

Images