Air leakage detection equipment for inflatable product

Abstract

The utility model relates to air leakage detection equipment for an inflatable product, and the equipment comprises at least one detection device which comprises an installation frame, a test cover, a lifting drive assembly, a detection pipeline, and an air leakage detection instrument. The residual air clearing mechanism comprises a clean air supply assembly and control assemblies in one-to-one correspondence with the detection devices, and each control assembly comprises a second air valve, an emptying pipe, a third air valve, at least one row of fans and at least one ventilation assembly; the feeding device comprises first feeding conveying mechanisms in one-to-one correspondence with the detection devices; and the discharging device comprises first discharging conveying mechanisms which are in one-to-one correspondence with the detection devices. 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 the 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] At least one set of detection devices, the detection devices are arranged side by side, the detection devices include a mounting frame, a test cover, a lifting drive assembly, a detection pipeline and a leakage detection instrument, the mounting frame is provided with an inlet, an outlet, an avoidance space and a positioning space for placing an inflatable product, the positioning space is located below the avoidance space, the inlet and the outlet are relatively arranged and connected to the positioning space, the positioning space is connected to the avoidance space; a bottom plate is provided at the bottom of the positioning space; the test cover is slidably connected to the mounting frame, and the lifting drive assembly drives the test cover to move up and down; before performing leakage detection, the test cover is placed in the avoidance space; when performing leakage detection, the test cover slides into the positioning space and abuts against the bottom plate, and 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; the air inlet of the leakage detection instrument is connected to all the detection holes through the detection pipeline;

[0009] The residual air cleaning mechanism comprises a clean air supply component and a control component corresponding to the detection device one by one, the control component comprises 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 of the ventilation components corresponds to at least one exhaust port, and the ventilation component can block the exhaust port; each of the exhaust fans is provided corresponding to at least one ventilation component;

[0010] A feeding device, comprising a first feeding conveying mechanism corresponding to the detection device one by one, the first feeding conveying mechanism being adjacent to an inlet on the mounting frame and used for pushing the inflatable product into the positioning space;

[0011] The unloading device comprises a first unloading conveying mechanism corresponding to the detection device one by one, wherein the first unloading conveying mechanism is adjacent to the outlet on the mounting frame and is used for temporarily parking the inflatable products after the detection.

[0012] 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, 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 realizing 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. In addition, by setting a feeding device and a discharging device, when the detection device performs leakage detection, the material can be prepared on the feeding device first. After the detection device completes the detection of an inflatable product, the inflatable product located in the feeding device can push the inflatable product that has been detected to the discharging device, and the replacement of the detection product is more convenient and quick.

[0013] 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, the end of the hose extending into the inner cavity of the test hood is inclined 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; the other end of the hose is connected to the air inlet of the air leakage detection instrument; the hose is sealed and connected to the detection hole. After such 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 there is a leak 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, which can ensure the reliability of the detection.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] The first loading conveying mechanism and the first unloading conveying mechanism both include a frame, a conveying roller, a fixed guide assembly, an adjustable guide assembly and a push assembly, wherein the conveying roller is arranged at the bottom of the frame; the fixed guide assembly is arranged on one side of the conveying roller and connected to the frame; the adjustable guide assembly is arranged on the other side of the conveying roller, the adjustable guide assembly is slidably connected to the frame, and the adjustable guide assembly moves relative to the fixed guide assembly, and the adjustable guide assembly can be locked relative to the frame; the fixed guide assembly and the adjustable guide assembly cooperate to limit the inflatable product; the push assembly includes a linear moving module and a push block for pushing the inflatable product, and the linear moving module drives the push block to move along the conveying direction of the conveying roller. By setting the conveying roller, the sliding of the inflatable product can be facilitated, and by adjusting the spacing between the adjustable guide assembly and the fixed guide assembly, it can be used to limit the inflatable products of different specifications and types, and by setting the push assembly, the inflatable product can be pushed to move, thereby ensuring that the inflatable product can be pushed into the leakage detection device smoothly and in a uniform posture. In addition, the feeding mechanism arranged above has a simple structure, is easy to adjust and has a low preparation cost.

[0019] The frame includes a bottom fixed frame, a first fixed frame and a second fixed frame, wherein the first fixed frame is connected to one side of the bottom fixed frame, and the second fixed frame is connected to the other side of the bottom fixed frame; the conveying roller is arranged on the bottom fixed frame, the fixed guide assembly is connected to the first fixed frame, the pusher assembly is arranged on the first fixed frame, and the adjustable guide assembly is slidably connected to the second fixed frame;

[0020] The adjustable guide assembly includes a plurality of first guide members, at least two connecting members and at least one locking member, wherein the first guide members are placed horizontally and spaced apart in the vertical direction, and the connecting members connect all the first guide members; at least one of the first guide members is provided with two limiting members, wherein the limiting members are connected to the two ends of the first guide member, and the limiting members cooperate with the first guide member to form a limiting slideway that is slidably matched with the second fixing frame; the limiting member is provided with an oblong hole that cooperates with the locking member, and the locking member passes through the oblong hole and is threadedly connected with the second fixing frame;

[0021] The fixed guide assembly comprises at least two second guide members, the second guide members are placed horizontally and spaced apart in the vertical direction, and the second guide members are connected to the first fixed frame;

[0022] The pusher assembly also includes a mounting seat, a swing arm, a pressure wheel frame and a spring, the linear moving module drives the mounting seat; one end of the swing arm is rotatably connected to the mounting seat, the push block is connected to the other end of the swing arm, and the mounting seat is provided with a limit block for limiting the swing arm; one end of the spring is connected to the swing arm, and the other end of the spring is connected to the mounting seat; the pressure wheel frame is connected to the starting end of the frame, the pressure wheel frame is provided with a pressure wheel, and the swing arm is provided with a pressure plate that cooperates with the pressure wheel;

[0023] When the linear moving module driving mounting seat is located at the starting end of the frame, the pressure wheel presses the pressure plate and pushes the swing arm, so that the push block extends into the fixed guide assembly; when the linear moving module driving mounting seat is away from the starting end of the frame, under the pulling force of the spring, the swing arm abuts the limit block, and the push block extends out of the fixed guide assembly and is placed above the conveyor roller; the starting end refers to the end of the frame away from the detection device.

[0024] After the above arrangement, the structural stability of the feeding mechanism can be guaranteed, and the layout is reasonable. By guiding the inflatable product through the first guide member, there are fewer contact points between the two, which can be beneficial to the pushing of the inflatable product. By setting the limit slide, the sliding stability and structural stability of the adjustable guide assembly can be guaranteed. By setting the locking member, the adjustable guide assembly can be conveniently locked on the second fixed frame. The adjustable guide assembly arranged in this way has a simple structure, good stability, and convenient adjustment. In addition, when the mounting seat moves to the starting end (the end away from the detection device), the pressure plate is pressed against the pressure wheel frame by the pushing assembly, so that the swing arm and the push block can be retracted into the fixed guide assembly to avoid interfering with the loading of the inflatable product from the starting end of the conveying roller. When the mounting seat moves along the feeding direction, under the tension of the spring, the swing arm and the push block can extend out of the fixed guide assembly and push the inflatable product.

[0025] The loading device further includes a second loading conveying mechanism and a loading transport mechanism, wherein the loading transport mechanism is used to transport the inflatable product on the second loading conveying mechanism to the first loading conveying mechanism; the unloading device further includes a second unloading conveying mechanism and an unloading transport mechanism, wherein the unloading transport mechanism is used to transport the inflatable product on the first unloading conveying mechanism to the second unloading conveying mechanism. Through the above arrangement, when multiple sets of detection devices are arranged, the loading and unloading of inflatable products can be made more convenient, faster and more orderly, which is conducive to improving the efficiency of the entire detection process.

[0026] The second loading conveying mechanism and the second unloading conveying mechanism are both powered roller conveying lines, the second loading conveying mechanism and the first loading conveying mechanism are arranged side by side, and the second unloading conveying mechanism and the first unloading conveying mechanism are arranged side by side;

[0027] The loading and conveying mechanism and the unloading and conveying mechanism both include an elevated platform, a horizontal moving module, a lifting and moving module, and a clamping assembly for clamping inflatable products. The horizontal moving module is arranged on the elevated platform, the horizontal moving module drives the lifting and moving module to move horizontally, and the lifting and moving module drives the clamping assembly to move up and down; the elevated platform corresponding to the loading and conveying mechanism is located above the first loading and conveying mechanism and the second loading and conveying mechanism, and the elevated platform corresponding to the unloading and conveying mechanism is located above the first unloading and conveying mechanism and the second unloading and conveying mechanism.

[0028] Through the above arrangement, the second loading conveying mechanism, the second unloading conveying mechanism, the loading transporting mechanism and the unloading transporting mechanism have simple structures and reasonable layouts.

[0029] It also includes a detection gas circulation device, which includes a vacuum tank, a gas compressor, a high-pressure tank, a gas charging interface and a gas extraction interface. The gas charging interface is set on the side of the detection device for loading, and the gas charging interface is connected to the high-pressure tank; the gas extraction interface is set on the side of the detection device for unloading, and the gas extraction interface is connected to the vacuum tank, and the vacuum tank is connected to the high-pressure tank through the gas compressor. After this arrangement, the inflatable product can be inflated (filled with detection gas) at the front end of the detection device, and the detection gas can be extracted after the detection is completed, making the recycling of the detection gas more convenient.

[0030] After adopting the above scheme, 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, 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 realizing 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. In addition, by setting a feeding device and a discharging device, when the detection device performs leakage detection, the material can be prepared on the feeding device first. After the detection device completes the detection of an inflatable product, the inflatable product located in the feeding device can push the inflatable product that has been detected to the discharging device, and the replacement of the detection product is more convenient and quick.

[0031] In addition, each detection device of the utility model is independently arranged with the corresponding loading device and unloading device, and the overall equipment is modularized and can be freely increased or decreased according to demand, with strong flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the utility model;

[0033] Figure 2 is a schematic diagram of a detection device;

[0034] Figure 3 is a cross-sectional view of the detection device;

[0035] Figure 4 A simplified diagram of the connection of the lifting drive assembly;

[0036] Figure 5 is a schematic diagram of the test hood;

[0037] Figure 6 is a cross-sectional view of the test cover;

[0038] Figure 7 is a schematic diagram of a ventilation assembly;

[0039] Figure 8 is a cross-sectional view of a ventilation assembly;

[0040] Fig. 9 This is a schematic diagram of the connection between the clean air supply component and the detection pipeline;

[0041] Fig.10 is a schematic diagram of a first feeding and conveying mechanism;

[0042] Fig.11 for Fig.10 The enlarged schematic diagram of the middle A part;

[0043] Fig.12 for Fig.10 The enlarged schematic diagram of the middle B part;

[0044] Fig.13 is a schematic diagram of the conveying component state one;

[0045] Fig.14 is a schematic diagram of the conveying component state from another perspective;

[0046] Fig.15 It is a schematic diagram of the conveying component state 2;

[0047] Fig.16 for Figure 1 An enlarged schematic diagram of the S portion in FIG.

[0048] Fig.17 This is the operating principle diagram of the gas circulation device for detection.

[0049] Marking Description:

[0050] Detection device 10, mounting frame 11, avoidance space 111, positioning space 112, bottom plate 113, test cover 12, detection hole 121, exhaust port 122, sealing ring 123, first cylinder 131, chain 132, first sprocket 133, second sprocket 134, hose 141, manifold 142, manifold 143, air pump 144, first air valve 145, air leakage detection instrument 15, clean air supply assembly 161, second air valve 162, third air valve 163, exhaust pipe 164, ventilation assembly 17, second cylinder 171, connecting rod 172, swing arm 173, blocking plate 174, hollow hole 175, exhaust fan 18;

[0051] First feeding conveying mechanism 21, bottom fixing frame 2111, first fixing frame 2112, second fixing frame 2113, roller 2114, roller 2121, ramp 2122, second guide member 2131, first guide member 2141, connecting member 2142, locking member 2143, limiting member 2144, limiting slideway 2145, oblong hole 2146, slide cylinder 2151, guide rail 2152, push block 2153, mounting seat 2154, swing arm 2155, pressure wheel frame 2156, pressure wheel 2157, pressure plate 2158, limiting block 2159;

[0052] The second loading and conveying mechanism 22, the railing 221, the loading and conveying mechanism 23, the elevated platform 231, the horizontal moving module 232, the lifting and moving module 233, and the clamping assembly 234;

[0053] A first material unloading conveying mechanism 31, a second material unloading conveying mechanism 32, and a material unloading transporting mechanism 33;

[0054] Vacuum tank 41, gas compressor 42, high pressure tank 43;

[0055] Inflatable products 50. DETAILED DESCRIPTION

[0056] 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.

[0057] 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.

[0058] like Figure 1-17 As shown, the utility model discloses an inflatable product leakage detection device, which includes a detection device 10, a residual gas cleaning mechanism, a feeding device, a unloading device and a detection gas circulation device.

[0059] like Figure 2-3 As shown, at least one detection device 10 is provided, and these detection devices 10 are arranged side by side. The detection device 10 includes a mounting frame 11, a test cover 12, a lifting drive assembly, a detection pipeline and a gas leakage detection instrument 15. The gas leakage detection instrument 15 can be a helium mass spectrometer. In this case, each detection device 10 is provided with a gas leakage detection instrument 15. Of course, multiple detection devices 10 can also share one gas leakage detection instrument 15.

[0060] The mounting frame 11 is provided with an inlet and outlet, an avoidance space 111, and a positioning space 112 for placing an inflatable product 50. By placing the inflatable product 50 vertically, the footprint of the detection device 10 can be made smaller. The positioning space 112 is located below the avoidance space 111. The positioning space 112 is connected to the avoidance space 111, and the inlet and outlet are connected to the positioning space 112. Two inlets and outlets can be provided, one inlet and one inlet are provided in front and behind the positioning space 112. Of course, only one inlet and outlet can also be provided. A bottom plate 113 is provided at the bottom of the positioning space 112, and the bottom plate 113 is used to block the cover opening of the test cover 12. The test cover 12 is connected to the mounting frame 11 by sliding up and down. When the test cover 12 moves down to the limit, the test cover 12 can abut the bottom plate 113. At this time, the gap between the two is sealed. A sealing gasket can be provided on the cover opening of the test cover 12 and / or the bottom plate 113 to enhance the sealing performance. Before leak detection, the test cover 12 is placed in the avoidance space 111 and will not interfere with the inflatable product 50 entering and exiting the positioning space 112 . When leak detection is performed, the test cover 12 slides into the positioning space 112 and abuts against the bottom plate 113 .

[0061] like Figure 4As shown, the lifting drive assembly is used to drive the test cover 12 to move up and down. Specifically, the lifting drive assembly includes a first cylinder 131, a chain 132, a first sprocket 133 and a second sprocket 134. The seat of the first cylinder is locked on the side of the mounting frame 11. The first cylinder 131 is vertically arranged, that is, its telescopic direction is vertical. The first sprocket 133 and the second sprocket 134 are both arranged on the top of the mounting frame 11 and are rotatably connected to the mounting frame 11. The first sprocket 133 is located above the first cylinder 131, and the second sprocket 134 is located above the test cover 12. The chain 132 is meshed with the first sprocket 133 and the second sprocket 134, and one end of the chain 132 is connected to the push rod of the first cylinder 33, and the other end of the chain 132 is connected to the top of the test cover 12. When the push rod of the first cylinder 33 contracts, the chain 132 is pulled to lift the test cover 12. When the push rod of the first cylinder 33 extends, the test cover 12 falls until it is pressed against the bottom plate 13. After such a configuration, compared with the method of directly using the cylinder to drive the test cover 12 to move, the driving method of the first cylinder 131 in conjunction with the chain 132, the first sprocket 133 and the second sprocket 134 has a more compact structure, the test cover 12 is subjected to a balanced force, and the movement is more stable. In addition, the control of the movement stroke of the test cover 12 is more flexible, and it is easy to ensure the sealing between the test cover 12 and the bottom plate 113.

[0062] like Figure 5-6 As shown, N detection areas are provided on the cover surface of the test cover 12, and N≥2. A plurality of detection holes 121 are evenly arranged in each detection area, and the detection holes 121 are connected to the inner cavity of the test cover 12. A hose 141 is provided in each detection hole 121, and one end of the hose 141 passes through the detection hole 121 and extends into the inner cavity of the test cover 12. The end of the hose 141 extending into the inner cavity of the test cover 12 is inclined relative to the cover surface of the cover body, or the end of the hose 141 extending into the inner cavity of the test cover 12 is arranged in an arc shape, so that the hose 141 can better adapt to inflatable products 50 of different specifications. When the thickness of the inflatable product 50 is thin, the pipe mouth of the hose 141 can also be closer to the inflatable product 50. If a leak occurs, the detection gas can enter the hose 141 more quickly. In addition, the pipe mouth of the hose 141 is less likely to be blocked by the inflatable product 50. The distance between the end of the hose 141 extending into the inner cavity of the test cover 12 and the inner wall of the test cover 12 is preferably 1-10 cm, so as to ensure that the end of the hose 141 extending into the inner cavity of the test cover 12 can better adapt to inflatable products 50 of different specifications.

[0063] The hose 141 is sealed and connected to the detection hole 121, and the sealing can be ensured by applying sealant. The hose 141 in the same detection area, one end of which is located outside the test cover 12 is connected to a manifold 142, and at the same time, the manifold 142 is connected to one end of the manifold 143, and all the manifolds 143 are connected to the air inlet of the vacuum pump 144, and the air outlet of the vacuum pump 144 is connected to the air inlet of the leakage detection instrument 15. In this case, the manifold 142 can be regarded as a multi-way, and the manifold 142 can be fixed on the outside of the test cover 12 to ensure the stability of the connection relationship between the hose 141 and it. The hose 141, the manifold 142, the manifold 143 and the vacuum pump 144 constitute a detection pipeline. A first air valve 145 is provided on each manifold 143. By controlling each first air valve 145 to open in sequence, each detection area can be detected independently, which is conducive to determining the approximate location of the leak.

[0064] If the inflatable product 50 leaks, after the inflatable product 50 is taken out, residual detection gas may still remain in the detection pipeline and the test cover 12. The sensitivity of the leakage detection instrument 15 is usually very high. In order to avoid affecting subsequent detection, it is necessary to clean the detection pipeline and the test cover 12 to remove the residual detection gas, so a residual gas cleaning mechanism is provided.

[0065] The residual air cleaning mechanism includes a clean air supply component 161 and a control component corresponding to the detection device 10. The control component includes a second air valve 162, an exhaust pipe 164, a third air valve 163, at least one exhaust fan 18 and at least one ventilation component 17. The clean air supply component 161 is connected to the detection pipeline through the second air valve 162. The connection node can be at the front and rear ends of the air pump 144. The clean air supply component 161 can be a compressed air storage tank or a compressed air supply pipe. The detection pipeline and the test cover 12 can be flushed by introducing compressed air. In order to ensure comprehensive flushing of the detection pipeline, an exhaust pipe 164 and a third air valve 163 are also provided. The exhaust pipe 164 is connected to the detection pipeline through the third air valve 163, and the third air valve 163 is arranged close to the air inlet of the leakage detection instrument 15.

[0066] like Figure 7-9 As shown, at least one exhaust port 122 is provided on the test cover 12, each ventilation assembly 17 corresponds to at least one exhaust port 122, and the ventilation assembly 17 can block the exhaust port 122, and each exhaust fan 18 is provided corresponding to at least one ventilation assembly 17. In this case, the exhaust port 122 is at the top of the test cover 12, eight exhaust ports 122 are provided, two sets of ventilation assemblies 17 are provided, and two sets of exhaust fans 18 are provided, one set of exhaust fans 18 corresponds to one ventilation assembly 17, and one set of ventilation assembly 17 corresponds to four exhaust ports 122. The exhaust fans 18 are installed on the top of the mounting frame 11, and the exhaust fans 18 are provided opposite to the ventilation assemblies 17.

[0067] The ventilation assembly 17 includes a second cylinder 171, two connecting rods 172, two blocking plates 174 and four swing arms 173. The two connecting rods 172 are parallel to each other and arranged at intervals. A swing arm 173 is correspondingly arranged at both ends of each connecting rod 172. One end of the swing arm 173 is pivotally connected to the connecting rod 172, and the other end of the swing arm 173 is pivotally connected to the test cover 12. One blocking plate 174 corresponds to two exhaust ports 122, and the blocking plate 174 connects the two connecting rods 172 at the same time. When the swing arm 173 is perpendicular to the blocking plate 174, the blocking plate 174 is away from the exhaust port 122, and the exhaust port 122 is opened. When the swing arm 173 is parallel to the blocking plate 174, the blocking plate 174 covers the exhaust port 122. A sealing ring 123 is provided on the outer periphery of the exhaust port 122 to seal the gap between the blocking plate 174 and the test cover 12, so as to ensure that the exhaust port 122 is reliably blocked.

[0068] The seat of the second cylinder 171 is pivotally connected to the test cover 12 and is located below a connecting rod 172. The push rod of the second cylinder 171 is pivotally connected to another connecting rod 172. When the push rod of the second cylinder 171 is retracted, the blocking plate 174 covers the exhaust port 122 and seals it. When the push rod of the second cylinder 171 is extended, the blocking plate 174 is away from the exhaust port 122. There is a gap between the two blocking plates 174 to facilitate the discharge of the test gas in the test cover 12. In addition, a number of hollow holes 175 that are conducive to exhaust can be set on the blocking plate 174, as long as the hollow holes 175 are not connected to the exhaust port 122 when the blocking plate 174 covers the exhaust port 122.

[0069] When the second air valve 162 and the third air valve 163 are closed and the sealing plate 174 covers the exhaust port 122, the normal leakage detection will not be interfered with. The detection pipeline and the test cover 12 can be cleaned after each leakage detection is completed, or only cleaned after a leakage is detected.

[0070] The loading device is used to load the inflatable product 50 into the detection device 10, and includes a second loading and conveying mechanism 22, a loading and transporting mechanism 23, and a first loading and conveying mechanism 21 corresponding one to the detection device 10. The first loading and conveying mechanism 21 is adjacent to the inlet on the mounting frame 11, and is used to push the inflatable product 50 into the positioning space 112. The loading and transporting mechanism 23 is used to transport the inflatable product 50 on the second loading and conveying mechanism 22 to the first loading and conveying mechanism 21.

[0071] like Figure 10-12As shown, specifically, the first loading conveying mechanism 21 includes a frame, a conveying roller, a fixed guide assembly, an adjustable guide assembly and a push assembly. The frame includes a bottom fixed frame 2111, a first fixed frame 2112 and a second fixed frame 2113, the first fixed frame 2112 is connected to one side of the bottom fixed frame 2111, the second fixed frame 2113 is connected to the other side of the bottom fixed frame 2111, and the first fixed frame 2112 and the second fixed frame 2113 are parallel to each other. The conveying roller is arranged on the bottom fixed frame 2111, the fixed guide assembly and the push assembly are both arranged on the first fixed frame 2112, and the adjustable guide assembly is arranged on the second fixed frame 2113.

[0072] The conveyor roller includes a plurality of rollers 2121, which are arranged horizontally and arranged in a row. The rollers 2121 are on the same plane, and the rollers 2121 are rotatably connected to the frame. The conveying direction of the conveyor roller is toward the detection device 10, and the rollers 2121 are perpendicular to the conveying direction. The conveyor roller arranged in this way has a simple structure and can ensure the smooth movement of the inflatable product 50. In addition, a slope 2122 can be provided at the starting end of the conveyor roller to facilitate manual pushing of the inflatable product 50 into the feeding mechanism.

[0073] The fixed guide assembly includes two second guide members 2131, which are placed horizontally and spaced apart in the vertical direction, and are fixedly connected to the first fixing frame 2112. The second guide member 2131 is preferably a rod-shaped structure.

[0074] like Figure 13-15As shown, the adjustable guide assembly is slidably connected to the second fixed frame 2113, and includes three first guide members 2141, two connecting members 2142 and two locking members 2143. The first guide members 2141 are placed horizontally and spaced in the vertical direction. The first guide members 2141 are preferably rod-shaped structures. The connecting members 2142 are located at both ends of the first guide members 2141 and connect all the first guide members 2141, so that all the first guide members 2141 can be connected into a whole, which is conducive to synchronous action. Two limiting members 2144 are provided on the first guide member 2141 located in the middle position. The limiting members 2144 are screwed to the two ends of the first guide member 2141. The limiting members 2144 cooperate with the ends of the first guide member 2141 to form a limiting slide 2145 that slidably cooperates with the second fixed frame 2113, so that the adjustable guide assembly is not easy to separate from the second fixed frame 2113 and will not move along the feeding direction. The second fixed frame 2113 is provided with a plurality of rollers 2114 for guiding and limiting the first guide member 2141, so that the adjustable guide assembly can move more smoothly and will not move up and down. The locking member 2143 corresponds to the limiting member 2144 one by one, and the limiting member 2144 is provided with an oblong hole 2146 that cooperates with the locking member 2143. The locking member 2143 passes through the oblong hole 2146 and is threadedly connected to the second fixed frame 2113. By tightening the locking member 2143, the adjustable guide assembly can be locked on the second fixed frame 2113, and the operation is simple and convenient. The adjustable guide assembly moves toward the fixed guide assembly, and the adjustable guide assembly cooperates with the fixed guide assembly to limit the inflatable product 50. By adjusting the spacing between the adjustable guide assembly and the fixed guide assembly, it can be applied to limit the inflatable products 50 of different thickness specifications. The first guide member 2141 and the second guide member 2131 are designed as rods, which can reduce the contact between them and the inflatable product 50 and reduce the friction, which is beneficial to the pushing of the inflatable product 50.

[0075] The push assembly is located between the two second guide members 2131, and it can also play a certain limiting role on the inflatable product 50. The push assembly is used to push the inflatable product 50 on the conveying roller to the detection device 10, and includes a linear moving module, a push block 2153, a mounting seat 2154, a swing arm 2155, a pressure wheel frame 2156 and a spring. The linear moving module includes a slide cylinder 2151 and at least one guide rail 2152. The slide cylinder 2151 and the guide rail 2152 are parallel to each other. The seat body of the slide cylinder 2151 and the guide rail 2152 are both locked on the first fixed frame 2112. The mounting seat 2154 is slidably connected to the guide rail 2152, and the mounting seat 2154 is connected to the movable part of the slide cylinder 2151. The linear moving module drives the mounting seat 2154 to move along the feeding direction.

[0076] One end of the swing arm 2155 is rotatably connected to the mounting seat 2154, and the push block 2153 is rotatably connected to the other end of the swing arm 2155. A limit block 2159 for limiting the swing arm 2155 is provided on the mounting seat 2154. When the swing arm 2155 abuts against the limit block 2159, the push block 2153 extends out of the fixed guide assembly and is placed above the conveying roller. At this time, the swing arm 2155 and the slide cylinder 2151 are perpendicular to each other. One end of the spring is connected to the swing arm 2155, and the other end of the spring is connected to the mounting seat 2154. Under normal conditions, under the tension of the spring, the swing arm 2155 abuts against the limit block 2159. The pressure wheel frame 2156 is connected to one end (starting end) of the first fixed frame 2112 away from the detection device. A pressure wheel 2157 is rotatably connected to the pressure wheel frame 2156, and a pressure plate 2158 cooperating with the pressure wheel 2157 is provided on the swing arm 2155. When the linear moving module drives the mounting seat 2154 to move away from the detection device 10 and approach the end of the slide cylinder 2151, the pressing plate 2158 can press the pressing wheel 2157, so that the swing arm 2155 rotates, and the push block 2153 will extend into the fixed guide assembly, and the push block 2153 is no longer placed directly above the conveying roller. At this time, the push assembly will not interfere with the inflatable product 50 from the starting end of the conveying roller. When the linear moving module drives the mounting seat 2154 to move along the feeding direction, under the pulling force of the spring, the swing arm 2155 and the push block 2153 are reset, and the push block 2153 can abut and push the inflatable product 50.

[0077] The second feeding conveyor mechanism 22 is a powered roller conveyor line, and railings 221 for limiting the vertical placement of the inflatable product 50 can be set on both sides thereof, and the railings 221 on one side can be set with reference to the adjustable guide assembly, which will not be described in detail. The second feeding conveyor mechanism 22 is arranged side by side with the first feeding conveyor mechanism 21, and the second feeding conveyor mechanism 22 is used to continuously convey the inflatable product 50 to be tested. The feeding and conveying mechanism 23 includes an elevated platform 231, a horizontal moving module 232, a lifting and moving module 233, and a clamping assembly 234 for clamping the inflatable product 50. The elevated platform 231 is located above the first feeding and conveying mechanism 21 and the second feeding and conveying mechanism 22. The horizontal moving module 232 is set on the elevated platform 231. The horizontal moving module 232 drives the lifting and moving module 233 to move horizontally, and the lifting and moving module 233 drives the clamping assembly 234 to move up and down. The horizontal moving module 232 is a linear moving module based on a motor, and the lifting and moving module 233 is a linear moving module based on a motor or a cylinder. They are all existing technologies and will not be repeated. The clamping assembly 234 can be a pneumatic clamp.

[0078] The unloading device includes a second unloading conveying mechanism 32, an unloading transporting mechanism 33, and a first unloading conveying mechanism 31 corresponding to the detection device 10. The first unloading conveying mechanism 31 is adjacent to the outlet on the mounting frame 11 and is used to temporarily park the inflatable product 50 that has been tested. The unloading transporting mechanism 33 is used to transport the inflatable product 50 on the first unloading conveying mechanism 31 to the second unloading conveying mechanism 32. The structure of the first unloading conveying mechanism 31 can refer to the first loading conveying mechanism 21, but the first unloading conveying mechanism 31 does not need to be provided with a push assembly and a push linear moving module 214, and only the conveying frame 211 is retained. The second unloading conveying mechanism 32 refers to the second loading conveying mechanism 22, and the unloading transporting mechanism 33 refers to the loading transporting mechanism 23, and no further description is given.

[0079] The detection gas circulation device includes a vacuum tank 41, a gas compressor 42, a high-pressure tank 43, a charging interface and a gas extraction interface. The charging interface is arranged on the side of the detection device 10 for loading, and the charging interface is connected to the high-pressure tank 43. The gas extraction interface is arranged on the side of the detection device 10 for unloading, and the gas extraction interface is connected to the vacuum tank 41, and the vacuum tank 41 is connected to the high-pressure tank 43 through the gas compressor 42. The operator can first transport the uninflated inflatable product 50 to the vicinity of the second loading conveying mechanism 22, inflate it through the charging interface, and then directly move it to the second loading conveying mechanism 22. When the inflatable product 50 is detected and transported to the second unloading conveying mechanism 32, the operator extracts the detection gas in the inflatable product 50 through the gas extraction interface, and then recycles it for reuse.

[0080] The key to the utility model is that, by providing a plurality of detection holes 121 on the test cover 12, and these detection holes 121 are connected to the air inlet of the air leakage detection instrument 15 through the detection pipeline, when the inflatable product 50 leaks, it can be detected more quickly, thereby improving the detection efficiency. After the inflatable product 50 is detected, the second air valve 162, the ventilation assembly 17 and the exhaust fan 18 are opened, and at this time, the clean air flows through the second air valve 162, the detection pipeline, the inner cavity of the test cover 12, the exhaust port 122 and the exhaust fan 18 in sequence, thereby achieving the cleaning of the test cover 12 and the detection pipeline, removing the residual detection gas in the device, and ensuring the accuracy of the next inflatable product 50 leakage detection. In addition, because the residual detection gas in the device can be quickly removed, the next inflatable product 50 leakage detection can be quickly started, and the detection connection is faster, which is conducive to improving the detection efficiency. In addition, by providing a loading device and a unloading device, when the detection device 10 performs leakage detection, materials can be prepared on the loading device first. After the detection device 10 completes the detection of an inflatable product 50, the inflatable product 50 located on the loading device can push the inflatable product 50 that has completed the detection to the unloading device, and the replacement of the detection product is more convenient and quick.

[0081] 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. An inflatable product leakage detection device, characterized in that: include: At least one set of detection devices, the detection devices are arranged side by side, the detection devices include a mounting frame, a test cover, a lifting drive assembly, a detection pipeline and a leakage detection instrument, the mounting frame is provided with an inlet, an outlet, an avoidance space and a positioning space for placing an inflatable product, the positioning space is located below the avoidance space, the inlet and the outlet are relatively arranged and connected to the positioning space, the positioning space is connected to the avoidance space; a bottom plate is provided at the bottom of the positioning space; the test cover is slidably connected to the mounting frame, and the lifting drive assembly drives the test cover to move up and down; before performing leakage detection, the test cover is placed in the avoidance space; when performing leakage detection, the test cover slides into the positioning space and abuts against the bottom plate, and 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; the air inlet of the leakage detection instrument is connected to all the detection holes through the detection pipeline; The residual air cleaning mechanism comprises a clean air supply component and a control component corresponding to the detection device one by one, the control component comprises 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 of the ventilation components corresponds to at least one exhaust port, and the ventilation component can block the exhaust port; each of the exhaust fans is provided corresponding to at least one ventilation component; A feeding device, comprising a first feeding conveying mechanism corresponding to the detection device one by one, the first feeding conveying mechanism being adjacent to an inlet on the mounting frame and used for pushing the inflatable product into the positioning space; The unloading device comprises a first unloading conveying mechanism corresponding to the detection device one by one, wherein the first unloading conveying mechanism is adjacent to the outlet on the mounting frame and is used for temporarily parking the inflatable products after the detection.

2. The inflatable product leakage detection device according to claim 1, characterized in that: The test cover is provided with N detection areas on its cover 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 detection hole corresponds to a hose, one end of the hose passes through the detection hole and extends into the inner cavity of the test cover, the end of the hose extending into the inner cavity of the test cover is inclined 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; the other end of the hose is connected to the air inlet of the leakage detection instrument; the hose is sealed and connected to the detection hole.

3. 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.

4. 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.

5. 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.

6. 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.

7. The inflatable product leakage detection device according to claim 1, characterized in that: The first loading conveying mechanism and the first unloading conveying mechanism both include a frame, a conveying roller, a fixed guide assembly, an adjustable guide assembly and a pushing assembly, wherein the conveying roller is arranged at the bottom of the frame; the fixed guide assembly is arranged on one side of the conveying roller and is connected to the frame; the adjustable guide assembly is arranged on the other side of the conveying roller, the adjustable guide assembly is slidably connected to the frame, and the adjustable guide assembly moves relative to the fixed guide assembly, and the adjustable guide assembly can be locked relative to the frame; the fixed guide assembly and the adjustable guide assembly cooperate to limit the inflatable product; the pushing assembly includes a linear moving module and a push block for pushing the inflatable product, and the linear moving module drives the push block to move along the conveying direction of the conveying roller.

8. The inflatable product leakage detection device according to claim 7, characterized in that: The frame includes a bottom fixed frame, a first fixed frame and a second fixed frame, wherein the first fixed frame is connected to one side of the bottom fixed frame, and the second fixed frame is connected to the other side of the bottom fixed frame; the conveying roller is arranged on the bottom fixed frame, the fixed guide assembly is connected to the first fixed frame, the pusher assembly is arranged on the first fixed frame, and the adjustable guide assembly is slidably connected to the second fixed frame; The adjustable guide assembly includes a plurality of first guide members, at least two connecting members and at least one locking member, wherein the first guide members are placed horizontally and spaced apart in the vertical direction, and the connecting members connect all the first guide members; at least one of the first guide members is provided with two limiting members, wherein the limiting members are connected to the two ends of the first guide member, and the limiting members cooperate with the first guide member to form a limiting slideway that is slidably matched with the second fixing frame; the limiting member is provided with an oblong hole that cooperates with the locking member, and the locking member passes through the oblong hole and is threadedly connected with the second fixing frame; The fixed guide assembly comprises at least two second guide members, the second guide members are placed horizontally and spaced apart in the vertical direction, and the second guide members are connected to the first fixed frame; The pusher assembly also includes a mounting seat, a swing arm, a pressure wheel frame and a spring, the linear moving module drives the mounting seat; one end of the swing arm is rotatably connected to the mounting seat, the push block is connected to the other end of the swing arm, and the mounting seat is provided with a limit block for limiting the swing arm; one end of the spring is connected to the swing arm, and the other end of the spring is connected to the mounting seat; the pressure wheel frame is connected to the starting end of the frame, the pressure wheel frame is provided with a pressure wheel, and the swing arm is provided with a pressure plate that cooperates with the pressure wheel; When the linear moving module driving mounting seat is located at the starting end of the frame, the pressure wheel presses the pressure plate and pushes the swing arm, so that the push block extends into the fixed guide assembly; when the linear moving module driving mounting seat is away from the starting end of the frame, under the pulling force of the spring, the swing arm abuts the limit block, and the push block extends out of the fixed guide assembly and is placed above the conveyor roller; the starting end refers to the end of the frame away from the detection device.

9. The inflatable product leakage detection device according to claim 1, characterized in that: The loading device also includes a second loading conveying mechanism and a loading transporting mechanism, and the loading transporting mechanism is used to transport the inflatable product on the second loading conveying mechanism to the first loading conveying mechanism; the unloading device also includes a second unloading conveying mechanism and a unloading transporting mechanism, and the unloading transporting mechanism is used to transport the inflatable product on the first unloading conveying mechanism to the second unloading conveying mechanism.

10. An inflatable product leakage detection device according to claim 9, characterized in that: The second loading conveying mechanism and the second unloading conveying mechanism are both powered roller conveying lines, the second loading conveying mechanism and the first loading conveying mechanism are arranged side by side, and the second unloading conveying mechanism and the first unloading conveying mechanism are arranged side by side; The loading and conveying mechanism and the unloading and conveying mechanism both include an elevated platform, a horizontal moving module, a lifting and moving module, and a clamping assembly for clamping inflatable products. The horizontal moving module is arranged on the elevated platform, the horizontal moving module drives the lifting and moving module to move horizontally, and the lifting and moving module drives the clamping assembly to move up and down; the elevated platform corresponding to the loading and conveying mechanism is located above the first loading and conveying mechanism and the second loading and conveying mechanism, and the elevated platform corresponding to the unloading and conveying mechanism is located above the first unloading and conveying mechanism and the second unloading and conveying mechanism.

11. The inflatable product leakage detection device according to claim 1, characterized in that: It also includes a detection gas circulation device, which includes a vacuum tank, a gas compressor, a high-pressure tank, an inflation interface and an exhaust interface. The inflation interface is arranged on the side where the detection device is loaded, and the inflation interface is connected to the high-pressure tank; the exhaust interface is arranged on the side where the detection device is unloaded, and the exhaust interface is connected to the vacuum tank, and the vacuum tank is connected to the high-pressure tank through the gas compressor.

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