Gas leakage detection and residual gas removal structure for inflatable product

Abstract

The utility model relates to an inflatable product air leakage detection residual air cleaning structure, which comprises a test cover, a detection pipeline, a clean air supply assembly, a first air valve, at least one exhaust fan and at least one ventilation assembly, the detection pipeline is communicated with an inner cavity of the test cover, and the clean air supply assembly is communicated with the detection pipeline through the first air valve; the test cover is provided with at least one exhaust port, each ventilation assembly corresponds to at least one exhaust port, and the ventilation assemblies can block the exhaust ports; and each exhaust fan is arranged corresponding to at least one ventilation assembly. 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 and residual air cleaning structure 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 helium 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 a residual gas cleaning structure for leak detection of inflatable products, which can clean the leak detection device, remove the residual detection gas in the leak detection device, and ensure the accuracy and consistency of the leak detection of inflatable products.

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

[0007] A structure for detecting leakage of inflatable products and clearing residual air, comprising a test hood, a detection pipeline, a clean air supply component, a first air valve, at least one exhaust fan and at least one ventilation component, wherein the detection pipeline is connected to the inner cavity of the test hood, and the clean air supply component is connected to the detection pipeline via the first air valve; at least one exhaust port is provided on the test hood, each of the ventilation components corresponds to at least one exhaust port, and the ventilation components can block the exhaust port; each of the exhaust fans is provided corresponding to at least one ventilation component.

[0008] Through the above arrangement, after the inflatable product detection is completed, the first air valve is opened, the ventilation assembly is opened, and the exhaust fan is turned on. At this time, clean air flows through the first air valve, the detection pipeline, the inner cavity of the test cover, the exhaust port and the exhaust fan in sequence, thereby cleaning the test cover and the detection pipeline, removing the residual detection gas in the leakage detection device, and ensuring the accuracy of the next inflatable product leakage detection. In addition, the utility model can quickly remove the residual detection gas in the detection device, so that the next inflatable product leakage detection can be quickly started, the leakage detection has better continuity, and is conducive to improving the detection efficiency.

[0009] The device also includes an exhaust pipe and a second air valve, wherein the exhaust pipe is connected to an end of the detection pipeline away from the test cover through the second air valve. By providing the exhaust pipe, most of the flow channels of the detection pipeline can be cleaned, thereby ensuring the accuracy of the inflatable product leakage detection.

[0010] The detection pipeline includes a manifold and a plurality of detection tubes, one end of the detection tube is connected to the inner cavity of the test cover, and the other end of the detection tube is connected to one end of the manifold; the clean air supply assembly is connected to the manifold through the first air valve. After such an arrangement, the entire cleaning flow path can be made simpler and the assembly of the pipeline is convenient.

[0011] At least one exhaust port is provided on the top of the test cover, which can ensure the rapid flow of air and help exhaust the residual test gas in the test device.

[0012] The exhaust fan is placed outside the test cover, and the exhaust fan corresponds to the ventilation assembly one by one. This arrangement can help to quickly exhaust the residual detection gas in the detection device.

[0013] The exhaust fan is mounted above the ventilation assembly, or the exhaust fan is mounted above the test cover, and when the test cover is in a raised state, the ventilation assembly can be close to the exhaust fan. A variety of exhaust fan settings are provided, and the exhaust fan is flexible in setting, and the user can flexibly adjust according to the structure of the actual detection device.

[0014] The ventilation assembly includes a cylinder, two connecting rods, at least one blocking plate and four swing arms. The two connecting rods are arranged in parallel with each other. A swing arm is 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 connects the two connecting rods at the same time. The seat of the cylinder is pivoted to the test cover, and the push rod of the cylinder is pivoted to one of the connecting rods. When the push rod of the cylinder is retracted, the blocking plate covers the exhaust port. When the push rod of the 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.

[0015] The outer periphery of the exhaust port is provided with a sealing ring, and the sealing performance of the exhaust port during the detection process can be ensured by providing the sealing ring.

[0016] The blocking plate is also provided with a plurality of hollow holes for facilitating exhaust, and when the blocking plate covers the exhaust port, the hollow holes are not connected to the exhaust port. By providing the hollow holes, the residual detection gas in the detection device can be quickly exhausted.

[0017] The clean air supply assembly is a compressed air supply pipe or a compressed air storage tank. This arrangement can ensure the strength of the airflow and improve the cleaning speed.

[0018] After adopting the above scheme, by opening the first air valve, ventilation assembly and exhaust fan, clean air flows through the first 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 leakage detection device, and ensuring the accuracy of the next leakage detection of the inflatable product. In addition, the utility model can quickly remove the residual detection gas in the detection device, so that the next leakage detection of the inflatable product can be quickly started, the continuity of the leakage detection is better, and it is conducive to improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a simplified view of the utility model;

[0020] Figure 2 This is a schematic diagram of the test cover of the utility model during cleaning;

[0021] Figure 3 is a schematic diagram of the test hood;

[0022] Figure 4 is a schematic diagram of a ventilation assembly;

[0023] Figure 5 A cross-sectional view of the ventilation assembly.

[0024] Marking Description:

[0025] Test cover 10, exhaust port 11, sealing ring 12;

[0026] Clean air supply assembly 20;

[0027] A first air valve 30;

[0028] A manifold 41, a detection tube 42, an exhaust tube 43, and a second gas valve 44;

[0029] Ventilation assembly 50, cylinder 51, connecting rod 52, swing arm 53, blocking plate 54, hollow hole 55;

[0030] Exhaust fan 60;

[0031] Mounting frame 70;

[0032] Testing instruments 80;

[0033] Inflatable products 90. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] like Figure 1-5 As shown, this embodiment discloses a structure for detecting and clearing residual air for inflatable products, which includes a test cover 10, a detection pipeline, a clean air supply assembly 20, a first air valve 30, two exhaust fans 60, and two ventilation assemblies 50. In this case, the clean air supply assembly 20 is used to supply clean air with a certain pressure, which can be a compressed air supply pipe or a compressed air storage tank, and the clean air is used to flush and remove the residual detection gas in the detection device.

[0037] The detection pipeline includes a manifold 41 and a plurality of detection tubes 42. One end of the detection tube 42 is connected to the inner cavity of the test cover 10, and the other end of the detection tube 42 is connected to one end of the manifold 41. The other end of the manifold 41 is connected to the detection instrument 80. The clean air supply assembly 20 is connected to the manifold 41 through the first air valve 30. In order to allow the pipe section of the manifold 41 between the first air valve 30 and the detection instrument 80 to be flushed, an exhaust pipe 43 and a second air valve 44 are also provided. The exhaust pipe 43 is connected to one end of the manifold 41 connected to the detection instrument 80 through the second air valve 44, so that most of the flow channels of the detection pipeline can be flushed.

[0038] In this case, two groups of exhaust ports 11 are arranged on the top of the test cover 10, each group of exhaust ports 11 has four exhaust ports, and each group of exhaust ports 11 corresponds to a set of ventilation components 50, which can controllably block or open the exhaust ports 11. Specifically, the ventilation components 50 include a cylinder 51, two connecting rods 52, two blocking plates 54, and four swing arms 53. The two connecting rods 52 are arranged parallel to each other, and a swing arm 53 is correspondingly arranged at both ends of each connecting rod 52, one end of the swing arm 53 is pivotally connected to the connecting rod 52, and the other end of the swing arm 53 is pivotally connected to the test cover 10. The blocking plate 54 connects the two connecting rods 52 at the same time. The seat of the cylinder 51 is pivotally connected to the test cover 10, and the pivot point between the seat of the cylinder 51 and the test cover 10 is located below one of the connecting rods 52, and the push rod of the cylinder 51 is pivotally connected to the other connecting rod 52. This arrangement allows the ventilation assembly 50 to occupy a smaller area of ​​the test cover 10. Of course, if permitted, the seat of the cylinder 51 may not be arranged below the connecting rod 52.

[0039] When the push rod of the cylinder 51 contracts, the blocking plate 54 will cover the exhaust port 11. A sealing ring 12 is provided on the outer periphery of the exhaust port 11, thereby ensuring that the blocking plate 54 can reliably block the exhaust port 11. When the push rod of the cylinder 51 extends, the blocking plate 54 will move away from the exhaust port 11, and the exhaust port 11 is connected to the inside and outside of the test cover 10, so that the gas in the inner cavity of the test cover 10 can be discharged. In order to facilitate the discharge of gas in the inner cavity of the test cover 10, a certain gap is required between the two blocking plates 54. In addition, a number of hollow holes 55 that are conducive to exhaust can be provided on the blocking plate 54. It is only necessary to ensure that when the blocking plate 54 covers the exhaust port 11, the hollow holes 55 will not be connected to the exhaust port 11.

[0040] The exhaust fan 60 is used to increase the exhaust speed. In the present case, the exhaust fan 60 is arranged in one-to-one correspondence with the ventilation assembly. The exhaust fan 60 is placed outside the test cover 10. The exhaust fan 60 can be installed on the mounting frame 70 of the test cover 10. When the test cover 10 is in the lifting state, the ventilation assembly 50 can be close to the exhaust fan 60. The test cover 10 is in the lifting state when the inflatable product 90 needs to be taken out after the test is completed. At this time, the inflatable product 90 is no longer placed in the inner cavity of the test cover 10, and the residual detection gas in the detection device is cut off from the source. At this time, cleaning can help to exhaust the residual detection gas. Of course, only one exhaust fan 60 can be set at this time. In addition, as an alternative, the exhaust fan 60 can also be directly elevated above the ventilation assembly 50.

[0041] If space permits, exhaust ports 11 may also be provided in other areas of the test cover 10, and ventilation components and exhaust fans 60 may also be provided accordingly, which will not be described in detail. By providing exhaust ports 11, ventilation components, etc. in other areas of the test cover 10, the exhaust of residual test gas can be further accelerated.

[0042] The key point of the utility model is that by opening the first air valve 30, the ventilation assembly 50, the exhaust fan 60 and the second air valve 44, the clean air flows into the manifold 41 through the first air valve 30, and then is divided into two paths, one of which flows through the detection tube 42, the inner cavity of the test cover 10, the exhaust port 11 and the exhaust fan 60 in sequence for cleaning and discharge, and the other flows through the second air valve 44 and the exhaust pipe 43 in sequence for cleaning and discharge, thereby achieving the cleaning of the test cover 10 and the detection pipeline, removing the residual detection gas in the leakage detection device, and ensuring the accuracy of the next leakage detection of the inflatable product 90. In addition, the utility model can quickly remove the residual detection gas in the detection device, so that the next leakage detection of the inflatable product 90 can be quickly started, the continuity of the leakage detection is better, and it is conducive to improving the detection efficiency.

[0043] 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 structure for detecting and removing residual gas from an inflatable product, characterized in that: It includes a test hood, a detection pipeline, a clean air supply component, a first air valve, at least one exhaust fan and at least one ventilation component. The detection pipeline is connected to the inner cavity of the test hood, and the clean air supply component is connected to the detection pipeline through the first air valve; at least one exhaust port is provided on the test hood, 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 structure for detecting and removing residual gas from an inflatable product according to claim 1, characterized in that: It also includes an exhaust pipe and a second air valve, wherein the exhaust pipe is connected to an end of the detection pipeline away from the test cover through the second air valve.

3. A structure for detecting and removing residual gas from an inflatable product according to claim 1 or 2, characterized in that: The detection pipeline includes a manifold and a plurality of detection tubes, one end of the detection tube is connected to the inner cavity of the test cover, and the other end of the detection tube is connected to one end of the manifold; the clean air supply assembly is connected to the manifold through a first air valve.

4. The structure for detecting and removing residual gas from an inflatable product according to claim 1, characterized in that: An exhaust port is provided at least on the top of the test cover.

5. The structure for detecting and removing residual gas from an inflatable product according to claim 1, characterized in that: The exhaust fan is placed outside the test cover, and the exhaust fan corresponds to the ventilation assembly one by one.

6. The structure for detecting and removing residual gas from an inflatable product according to claim 5, characterized in that: The exhaust fan is arranged above the ventilation assembly, or the exhaust fan is arranged above the test cover, and when the test cover is in a raised state, the ventilation assembly can be close to the exhaust fan.

7. The structure for detecting and removing residual gas from an inflatable product according to claim 1, characterized in that: The ventilation assembly includes a 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 cylinder is pivoted to the test cover, and the push rod of the cylinder is pivoted to one of the connecting rods; when the push rod of the cylinder is retracted, the blocking plate covers the exhaust port, and when the push rod of the cylinder is extended, the blocking plate is away from the exhaust port.

8. The structure for detecting and removing residual gas from an inflatable product according to claim 7, characterized in that: A sealing ring is arranged on the outer periphery of the exhaust port.

9. The structure for detecting and removing residual gas from an inflatable product according to claim 7, characterized in that: The blocking plate is also provided with a plurality of hollow holes which are conducive to exhaust. When the blocking plate covers the exhaust port, the hollow holes are not connected to the exhaust port.

10. The structure for detecting and removing residual gas from an inflatable product according to claim 1, characterized in that: The clean air supply component is a compressed air supply pipe or a compressed air storage tank.

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