Airtight Door Airtightness Leak Detection Device

Abstract

The present application discloses an airtight door airtightness leak detection device related to the detection of airtight doors, including a support assembly, a positioning assembly, and a transfer assembly. Among them, the support assembly includes a base, an air pipe, and a support sliding mechanism. Among them, there are two groups of the air pipes, and the two groups of air pipes are respectively arranged on the base. There are multiple groups of the support sliding mechanisms, and the multiple groups of support sliding mechanisms are linearly arranged in an array on the base, and the support sliding mechanism is used for the sliding transportation of the airtight door. The positioning assembly is arranged on the base, and the positioning assembly is used for the limit assembly of the airtight door. The transfer assembly is movably arranged on the base, and the transfer assembly is used to drive the airtight door to move from the support sliding mechanism to the positioning assembly. Thus, the airtight door is driven to move and limit-installed in a mobile and carried manner, without manual handling and installation, and it is convenient to quickly take out after the detection is completed, significantly improving the detection efficiency and operation safety.

Description

Technical Field

[0001] This application relates to the technical field of airtight door detection, and particularly to an airtightness leak detection device for airtight doors. Background Art

[0002] An emergency airtight door, as a key safety facility, is of self-evident importance. It builds a solid defense line for the safety of personnel's lives and property in case of emergency. To ensure that such airtight doors maintain excellent performance in the long term, it is crucial to strictly follow technical specifications and standards and conduct regular airtightness detection and maintenance. For the airtight doors in purification doors, their unique design is specifically for dealing with the complex environment of purification doors, strengthening the safety isolation and protection capabilities.

[0003] During the production process of airtight doors applied to purification doors, the airtightness detection link after preliminary processing is particularly crucial. Purification doors need to be able to effectively prevent air leakage and maintain environmental conditions such as air pressure and cleanliness in the clean room. Usually, special detection is required to verify whether their airtightness meets the clean room design standards. However, in traditional detection methods, the airtight door needs to be manually placed in a precision test frame. Due to the narrow gap, it not only increases the risk of hand injury to the operator but also may damage the surface of the airtight door due to friction. In addition, it is also inconvenient to take out the airtight door from the frame after the detection, significantly affecting the detection efficiency and operation safety. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems in the related technologies to some extent.

[0005] To this end, an object of this application is to propose an airtightness leak detection device for airtight doors, which drives the airtight door to move and be limitedly installed in a mobile and carried manner, without manual handling and installation, and is convenient to quickly take out after the detection is completed, significantly improving the detection efficiency and operation safety.

[0006] To achieve the above object, an airtightness leak detection device for airtight doors according to the first aspect embodiment of this application includes a support component, a positioning component, and a transfer component. Among them, the support component includes a base, an air pipe, and a support sliding mechanism. Among them, there are two groups of the air pipes, and the two groups of air pipes are respectively arranged on the base; there are multiple groups of the support sliding mechanisms, and the multiple groups of support sliding mechanisms are linearly arranged in an array on the base, and the support sliding mechanism is used for sliding and transporting the airtight door; the positioning component is arranged on the base, and the positioning component is used for limit-assembling the airtight door; the transfer component is movably arranged on the base, and the transfer component is used for driving the airtight door to move from the support sliding mechanism to the positioning component.

[0007] In addition, the airtightness leak detection device for airtight doors proposed according to the above of this application may also have the following additional technical features:

[0008] In one embodiment of the present application, the positioning assembly includes an outer frame, a support member, a limiting groove, and a sealing member. Among them, the outer frame is disposed on the base; the support members are multiple groups, and the multiple groups of support members are linearly arranged within the outer frame; the limiting grooves are multiple groups, and the multiple groups of limiting grooves are respectively formed on the outer frame; the sealing members are multiple groups, and each group of sealing members is correspondingly embedded within the limiting groove.

[0009] In one embodiment of the present application, the transfer assembly includes a sliding base, a driving member, a support frame, a pressing mechanism, a pressing plate, a carrying mechanism, a fixed shaft rod, and a spraying mechanism. Among them, there are two groups of sliding bases, and the two groups of sliding bases are respectively movably disposed on the base; there are two groups of driving members, and the two groups of driving members are correspondingly disposed on the sliding bases; both ends of the support frame are disposed at the output ends of the two groups of driving members; the pressing mechanism is disposed on the support frame; the pressing plate is disposed on the bottom wall of the pressing mechanism, and the pressing plate is pressed against the airtight door through the pressing mechanism; the carrying mechanism is disposed on the bottom wall of the pressing plate, and the carrying mechanism is movably disposed within the limiting groove, and the carrying mechanism is used to drive the airtight door to move from the support sliding mechanism to the positioning assembly; the fixed shaft rod is disposed on the support frame; the spraying mechanism is movably disposed on the fixed shaft rod, and the spraying mechanism is used to spray foam on the airtight door.

[0010] In one embodiment of the present application, the pressing mechanism includes a fastening frame, a fastening plate, and a fastening screw. Among them, the fastening frame is disposed on the support frame; the fastening plates are multiple groups, and the multiple groups of fastening plates are linearly arranged on the fastening frame; the fastening screws are multiple groups, and the multiple groups of fastening screws are correspondingly disposed on the fastening plates, and the fastening screws are rotatably connected to the pressing plate.

[0011] In one embodiment of the present application, the carrying mechanism includes a lifting adjustment member and a carrying member. Among them, the lifting adjustment member is disposed on the bottom wall of the pressing plate; the carrying member is movably disposed on the lifting adjustment member, and the carrying member is movably disposed within the limiting groove.

[0012] In one embodiment of the present application, the lifting adjustment member includes a fixed housing, a positioning block, a movable frame, a reset member, and a positioning slider. Among them, the fixed housing is disposed on the bottom wall of the pressing plate; the positioning block is disposed within the fixed housing; the movable frame is movably disposed within the fixed housing; both ends of the reset member are respectively connected to the movable frame and the pressing plate; the positioning slider is disposed at the bottom wall of the movable frame and is connected to the carrying member.

[0013] In an embodiment of the present application, the carrier includes a carrier plate and a limiting chute. Among them, the carrier plate is movably arranged on the positioning slider; the limiting chute is opened on the carrier plate, and the positioning slider is inserted into the limiting chute.

[0014] In an embodiment of the present application, the spraying mechanism includes a movable collar, a through pipe, and spraying components. Among them, the movable collar is movably arranged on the fixed shaft rod, and the movable collar is communicated with the support frame through a hose; the through pipe is arranged on the movable collar; the spraying components are multiple groups, and the multiple groups of spraying components are linearly arranged on the through pipe, and the spraying components are used for spraying foam on the surface of the airtight door.

[0015] Compared with the prior art, the airtight door airtightness leak detection device of the embodiments of the present application has the following advantages:

[0016] (1) Through the transfer assembly and its carrier mechanism, the automatic lifting movement of the airtight door is realized, and the traditional manual handling method is abandoned. It not only ensures the accurate positioning of the airtight door during the installation process, simplifies the installation process, but also greatly reduces the risk of hand injury to the operator, and significantly enhances the safety of the operation.

[0017] (2) The ingenious design in the carrier mechanism - the carrier and the limiting groove in the positioning component achieve precise limiting cooperation, which plays an important role in the installation process of the airtight door. It not only facilitates the quick connection and disconnection between the carrier and the airtight door, but also promotes the quick loading and unloading of the airtight door, thus greatly improving the detection efficiency.

[0018] (3) In addition, in order to further optimize the detection process, a movable spraying component is designed on the fixed shaft rod, so that the spraying operation can directly act on the transfer assembly, which greatly facilitates the operation during the detection process and further improves the convenience and efficiency of the detection.

[0019] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. Description of the Drawings

[0020] The above-mentioned and / or additional aspects and advantages of the present application will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0021] Figure 1 is a structural schematic diagram of an airtight door airtightness leak detection device in the prior art;

[0022] Figure 2 is a structural schematic diagram of an airtight door airtightness leak detection device according to an embodiment of the present application;

[0023] Figure 3 Schematic diagram of the support assembly and positioning assembly of the airtight door airtightness leak detection device according to an embodiment of the present application;

[0024] Figure 4 Schematic diagram of the transfer assembly of the airtight door airtightness leak detection device according to an embodiment of the present application;

[0025] Figure 5 Schematic diagram of the lifting adjustment member of the airtight door airtightness leak detection device according to an embodiment of the present application;

[0026] Figure 6 Schematic diagram of the carrier of the airtight door airtightness leak detection device according to an embodiment of the present application;

[0027] Figure 7 Schematic diagram of the spraying mechanism of the airtight door airtightness leak detection device according to an embodiment of the present application.

[0028] As shown in the figure: 10, support assembly; 101, base; 102, air pipe; 103, support sliding mechanism; 20, positioning assembly; 201, outer frame; 202, support member; 203, limiting groove; 204, sealing member; 30, transfer assembly; 301, sliding base; 302, driving member; 303, support frame; 304, pressing mechanism; 3041, fastening frame; 3042, fastening plate; 3043, fastening screw; 305, pressing plate; 306, carrying mechanism; 3061, lifting adjustment member; 30611, fixed housing; 30612, positioning stop block; 30613, movable frame; 30614, reset member; 30615, positioning slider; 3062, carrier; 30621, carrying plate; 30622, limiting sliding groove; 307, fixed shaft rod; 308, spraying mechanism; 3081, movable collar; 3082, through pipe; 3083, spraying member; 40, airtight door. Detailed implementation manners

[0029] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. On the contrary, the embodiments of the present application include all changes, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0030] The airtight door airtightness leak detection device according to the embodiments of the present application will be described below with reference to the drawings.

[0031] The airtightness leak detection device provided by the embodiment of the present application can be applied to the detection of airtight doors. It drives the airtight door to move and is installed in a limited position in a mobile and carried manner, eliminating the need for manual handling and installation and facilitating quick removal after the detection is completed, significantly improving the detection efficiency and operation safety.

[0032] As Figure 1 - Figure 7 As shown in the figure, the airtightness leak detection device of the embodiment of the present application includes a support assembly 10, a positioning assembly 20, and a transfer assembly 30.

[0033] Among them, the support assembly 10 includes a base 101, an air pipe 102, and a support sliding mechanism 103.

[0034] Among them, there are two groups of air pipes 102, and the two groups of air pipes 102 are respectively arranged on the base 101. There are multiple groups of support sliding mechanisms 103, and the multiple groups of support sliding mechanisms 103 are linearly arranged in an array on the base 101, and the support sliding mechanism 103 is used for the sliding and conveying of the airtight door 40.

[0035] It should be noted that in this embodiment, a limit slide rail is provided on the top of the base 101. The limit slide rail is arranged on the left and right sides of the top of the base 101. The two groups of air pipes 102 are respectively an air inlet pipe and an air outlet pipe. At the same time, a differential pressure gauge is connected to the air pipe 102 to monitor the air pressure of the test gas input during the test in real time.

[0036] Furthermore, the support sliding mechanism 103 includes a support column, and rollers are rotatably arranged at the top of the column. The airtight door moves forward through the rollers during the movement, facilitating the conveying of the airtight door.

[0037] The positioning assembly 20 is arranged on the base 101, and the positioning assembly 20 is used for limiting and assembling the airtight door 40; the transfer assembly 30 is movably arranged on the base 101, and the transfer assembly 30 is used to drive the airtight door 40 to move from the support sliding mechanism 103 to the positioning assembly 20.

[0038] It should be noted that the positioning assembly 20 is fixedly installed on the base 101, and the positioning assembly 20 and the support sliding mechanism 103 are on the same horizontal plane, and the airtight door 40 is driven by the transfer assembly 30 and is installed in the positioning assembly 20 in a limited position.

[0039] Specifically, the steps for leak detection of the airtight door's airtightness are as follows: The airtight door 40 to be inspected for leaks is placed on the top wall of the support sliding mechanism 103. The limit sliding transfer component 30 is slid on the support sliding mechanism 103. The transfer component 30 first moves to the lower part of the airtight door 40, drives the airtight door 40 to disengage from the support sliding mechanism 103, and moves to directly above the positioning component 20. Then the transfer component 30 drives the airtight door 40 to move downward to limit and install the airtight door 40 in the positioning component 20. And the airtight door 40 is limited and fixed in the positioning component 20. Air is passed into the base 101 through the air pipe 102 to measure the airtightness of the airtight door 40. There is no need for manual handling, and the positioning and placement are more convenient and efficient.

[0040] In an embodiment of the present application, as Figure 3 shown, the positioning component 20 includes an outer frame 201, a support member 202, a limit groove 203, and a sealing member 204.

[0041] Among them, the outer frame 201 is arranged on the base 101. There are multiple groups of support members 202, and the multiple groups of support members 202 are linearly arranged inside the outer frame 201. There are multiple groups of limit grooves 203, and the multiple groups of limit grooves 203 are respectively opened on the outer frame 201. There are multiple groups of sealing members 204, and each group of sealing members 204 is correspondingly embedded in the limit groove 203.

[0042] It should be noted that the outer frame 201 is set according to the shape of the airtight door 40, and the airtight door 40 is installed in the inner part of the outer frame 201 with a clearance fit. At the same time, the support member 202 is a rectangular block, and the multiple groups of support members 202 have the same size and shape. The airtight door 40 is placed inside the outer frame 201 and is supported by the support members 202. After the airtight door 40 is installed in the outer frame 201, it is clamped in the limit groove 203 through the sealing member 204. The sealing member 204 is a sealing plate, and a plastic sleeve is sleeved on the surface of the sealing plate. When the sealing member 204 is clamped in the limit groove 203, good sealing performance is ensured.

[0043] In an embodiment of the present application, as Figure 4 shown, the transfer component 30 includes a sliding base 301, a driving component 302, a support frame 303, a pressing and fixing mechanism 304, a pressing plate 305, a carrying mechanism 306, a fixed shaft rod 307, and a spraying mechanism 308.

[0044] Among them, there are two sets of sliding bases 301, and the two sets of sliding bases 301 are respectively movably arranged on the base 101. There are two sets of driving components 302, and the two sets of driving components 302 are correspondingly arranged on the sliding bases 301. Both ends of the support frame 303 are arranged at the output ends of the two sets of driving components 302. The pressing mechanism 304 is arranged on the support frame 303, the pressing plate 305 is arranged on the bottom wall of the pressing mechanism 304, and the pressing plate 305 is pressed tightly on the airtight door 40 through the pressing mechanism 304. The carrying mechanism 306 is arranged on the bottom wall of the pressing plate 305, and the carrying mechanism 306 is movably arranged in the limiting groove 203. The carrying mechanism 306 is used to drive the airtight door 40 to move from the support sliding mechanism 103 to the positioning component 20. The fixed shaft rod 307 is arranged on the support frame 303, and the spraying mechanism 308 is movably arranged on the fixed shaft rod 307. The spraying mechanism 308 is used to spray foam on the airtight door 40.

[0045] It should be noted that in this embodiment, pulleys or sliders are provided at the bottom of the sliding base 301, and the pulleys and sliders are limited and slide in the limiting slide rails, so that the sliding base 301 moves on the base 101. At the same time, the driving component 302 is a hydraulic cylinder, and the hydraulic cylinder is connected to the power supply through a control switch and operates to drive the support frame 303 to lift and adjust the height. The lifting movement of the support frame 303 drives the pressing plate 305 and the carrying mechanism 306 to adjust the height. At the initial position, the carrying mechanism 306 moves to the bottom of the airtight door 40, then drives the airtight door 40 to disengage from the support sliding mechanism 103 and moves again to directly above the positioning component 20, and drives the airtight door 40 to be installed in the positioning component 20.

[0046] Subsequently, the pressing mechanism 304 presses the pressing plate 305 downward, so that the pressing plate 305 presses and fixes the airtight door 40 to ensure the stability and airtightness of the airtight door 40 in the positioning component 20. During the test, the spraying mechanism 308 is moved on the fixed shaft rod 307, and the spraying mechanism 308 moves to spray foam on the surface of the airtight door 40. Thus, during the airtightness detection process, it is judged whether the airtight door 40 leaks through whether the foam bubbles.

[0047] In an embodiment of the present application, as Figure 4 shown, the pressing mechanism 304 includes a fastening frame 3041, a fastening plate 3042 and a fastening screw 3043.

[0048] Among them, the fastening frame 3041 is arranged on the support frame 303. There are multiple groups of fastening plates 3042, and the multiple groups of fastening plates 3042 are linearly arranged on the fastening frame 3041. There are multiple groups of fastening screws 3043, and the multiple groups of fastening screws 3043 are correspondingly arranged on the fastening plates 3042, and the fastening screws 3043 are rotatably connected to the pressing plate 305.

[0049] It should be noted that the fastening frame 3041 is fixedly installed on the support frame 303 and moves up and down synchronously with the support frame 303. Threaded holes are provided on the fastening plate 3042, and the fastening screw 3043 is threadedly connected in the threaded holes. A rotating handle is provided on the fastening screw 3043, and the height of the fastening screw 3043 is adjusted by rotating the rotating handle. A bearing is provided at the connection between the fastening screw 3043 and the pressing plate 305, so that the pressing plate 305 is pushed to adjust the height when the fastening screw 3043 is rotated and adjusted.

[0050] In an embodiment of the present application, as Figure 4 , Figure 5 and Figure 6 shown, the carrying mechanism 306 includes a lifting adjustment member 3061 and a carrying member 3062.

[0051] Among them, the lifting adjustment member 3061 is arranged on the bottom wall of the pressing plate 305, the carrying member 3062 is movably arranged on the lifting adjustment member 3061, and the carrying member 3062 is movably arranged in the limiting groove 203.

[0052] It should be noted that the lifting adjustment member 3061 is arranged on the bottom wall of the pressing plate 305, the height of the lifting adjustment member 3061 is greater than the height of the airtight door 40, the carrying member 3062 is detachably and movably installed on the lifting adjustment member 3061, and the carrying member 3062 abuts against the bottom wall of the airtight door 40 to support the airtight door 40.

[0053] In an embodiment of the present application, as Figure 5 shown, the lifting adjustment member 3061 includes a fixed housing 30611, a positioning stop block 30612, a movable frame 30613, a reset member 30614 and a positioning slider 30615.

[0054] Among them, the fixed housing 30611 is arranged on the bottom wall of the pressing plate 305, the positioning stop block 30612 is arranged in the fixed housing 30611, and the movable frame 30613 is movably arranged in the fixed housing 30611. The two ends of the reset member 30614 are respectively connected to the movable frame 30613 and the pressing plate 305, the positioning slider 30615 is arranged at the bottom wall connection of the movable frame 30613, and the positioning slider 30615 is connected to the carrying member 3062.

[0055] It should be noted that an inner groove is provided on the end face of the fixed housing 30611 away from the airtight door 40. The positioning stoppers 30612 are arranged in the inner groove, and a through groove is provided between the positioning stoppers 30612. The movable frame 30613 includes a movable support passing through the through groove. The top wall of the movable support is provided with a movable plate, and the downward movement of the movable plate is limited by the positioning stoppers 30612. The reset member 30614 is a reset spring, and the reset spring drives the movable frame 30613 to reset when not under force. After the movable frame 30613 is reset, the height between it and the pressing plate 305 is greater than the height of the airtight door 40, and it passes through from the bottom of the airtight door 40 during movement.

[0056] In an embodiment of the present application, as Figure 6 shown, the carrier 3062 includes a carrier plate 30621 and a limiting chute 30622.

[0057] Among them, the carrier plate 30621 is movably arranged on the positioning slider 30615. The limiting chute 30622 is opened on the carrier plate 30621, and the positioning slider 30615 is inserted into the limiting chute 30622.

[0058] It should be noted that a groove is provided on the carrier plate 30621, and the limiting chute 30622 is opened on the inner walls of both sides of the groove. The positioning slider 30615 is in limiting cooperation with the limiting chute 30622 so that the carrier 3062 can slide and adjust its position on the positioning slider 30615.

[0059] In an embodiment of the present application, as Figure 7 shown, the spraying mechanism 308 includes a movable collar 3081, a through pipe 3082, and a spraying component 3083.

[0060] Among them, the movable collar 3081 is movably arranged on the fixed shaft rod 307, and the movable collar 3081 is connected to the support frame 303 through a hose. The through pipe 3082 is arranged on the movable collar 3081. The spraying components 3083 are multiple groups, and the multiple groups of spraying components 3083 are linearly arranged on the through pipe 3082. The spraying components 3083 are used to spray foam on the surface of the airtight door 40.

[0061] It should be noted that in this embodiment, a liquid inlet hole is provided on the movable collar 3081. The support frame 303 is a pipe frame with a hollow middle position, and a water injection hole is provided on the pipe frame. The foam liquid is filled in the support frame 303, and then the foam in the support frame 303 is pumped to the movable collar 3081 through the hose by a pump. The through pipe 3082 is connected to the movable collar 3081. At this time, the foam liquid enters the through pipe 3082 and is sprayed on the surface of the airtight door 40 through the spraying components 3083. The spraying components 3083 are nozzles, and the size of the spraying holes on the nozzles is set according to the density of the foam liquid to be sprayed as required.

[0062] The steps for airtightness detection of the airtight door are as follows: Place the airtight door 40 to be detected on the support sliding mechanism 103, and limit its movement through the support sliding mechanism 103. After the airtight door 40 moves and stops stably on the support sliding mechanism 103, move the sliding base 301 on the base 101. When the sliding base 301 moves, it drives the driving component 302 and the support frame 303 to move synchronously, driving the pressing plate 305 to move directly below the airtight door 40. During the movement of the pressing plate 305, the carrier 3062 moves below the airtight door 40. Subsequently, operate the driving component 302, and the driving component 302 pushes the support frame 303 upward, then the carrier 3062 moves upward and abuts against the bottom of the airtight door 40, driving the airtight door 40 to disengage from the support sliding mechanism 103 and continue to slide on the base 101.

[0063] Drive the airtight door 40 to move directly above the positioning component 20 and stop stably after being limited. Then operate the driving component 302 to drive the airtight door 40 downward, making the positions of the carrier plate 30621 and the limiting groove 203 correspond. Subsequently, during the downward movement, the airtight door 40 moves into the outer frame 201 and is supported by the support component 202. The airtight door 40 is stably placed in the outer frame 201, and the driving component 302 drives the support frame 303 to continue to move downward, separating the carrier mechanism 306 from the airtight door 40. Then, pull out the carrier plate 30621 from the positioning slider 30615. And block the sealing component 204 in the limiting groove 203. At this time, the pressing plate 305 is pressed against the surface of the airtight door 40, and the strength when the pressing plate 305 is pressed against the airtight door 40 is enhanced by rotating the fastening screw 3043, ensuring the stable installation of the airtight door 40.

[0064] Move the spraying mechanism 308 on the fixed shaft rod 307, and the foam liquid for spraying detection is sprayed from the spraying component 3083 onto the surface of the airtight door 40 to ensure coverage of the airtight door 40. Subsequently, convey the test gas into the outer frame 201 through the air pipe 102. During the detection process, if bubbles are generated in the foam liquid covering the airtight door 40, it is determined that there is gas leakage at this position, and the airtightness of the airtight door 40 is unqualified. If no bubbles emerge, the airtightness of the airtight door 40 is qualified. There is no need to manually carry and place the airtight door, the placement position is accurate, and the stability of the airtight door is ensured, making it more convenient to detect the airtightness of the airtight door.

[0065] In summary, the airtightness leak detection device for the airtight door in the embodiment of the present application drives the airtight door to move and be installed in a limited manner by means of mobile loading, eliminating the need for manual handling and installation and facilitating quick removal after detection, significantly improving the detection efficiency and operation safety.

[0066] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. An airtight door leak detection device, characterized in that: It comprises a supporting assembly (10), a positioning assembly (20) and a transfer assembly (30), wherein: The support assembly (10) comprises a base (101), an air pipe (102) and a support sliding mechanism (103), wherein: The air pipes (102) are in two groups, and the two groups of air pipes (102) are respectively arranged on the base (101); The supporting sliding mechanisms (103) are multiple groups, and the multiple groups of supporting sliding mechanisms (103) are arranged in a linear array on the base (101), and the supporting sliding mechanisms (103) are used for sliding transportation of the airtight door (40); The positioning assembly (20) is arranged on the base (101), and the positioning assembly (20) is used to limit the position of the airtight door (40); The positioning assembly (20) comprises an outer frame (201), a supporting component (202), a limiting groove (203) and a sealing component (204), wherein: The outer frame (201) is arranged on the base (101); The supporting components (202) are multiple groups, and the multiple groups of supporting components (202) are linearly arranged and arranged inside the outer frame (201); The limiting grooves (203) are multiple groups, and the multiple groups of limiting grooves (203) are respectively opened on the outer frame (201); The sealing components (204) are multiple groups, and each group of the sealing components (204) is correspondingly embedded in the limiting groove (203); The transfer assembly (30) is movably arranged on the base (101), and the transfer assembly (30) is used to drive the airtight door (40) to move from the supporting sliding mechanism (103) to the positioning assembly (20); The transfer assembly (30) comprises a sliding base (301), a driving component (302), a support frame (303), a pressing mechanism (304), a pressing plate (305), a carrying mechanism (306), a fixed shaft (307) and a spraying mechanism (308), wherein: The sliding bases (301) are divided into two groups, and the two groups of sliding bases (301) are respectively and movably arranged on the base (101); The driving components (302) are divided into two groups, and the two groups of driving components (302) are correspondingly arranged on the sliding base (301); Both ends of the support frame (303) are arranged at the output ends of the two groups of driving components (302); The pressing mechanism (304) is arranged on the supporting frame (303); The pressing plate (305) is arranged on the bottom wall of the pressing mechanism (304), and the pressing plate (305) is pressed against the airtight door (40) through the pressing mechanism (304); The carrying mechanism (306) is arranged on the bottom wall of the pressing plate (305), and the carrying mechanism (306) is movably arranged in the limiting groove (203), and the carrying mechanism (306) is used to drive the airtight door (40) to move from the supporting sliding mechanism (103) to the positioning assembly (20); The carrying mechanism (306) comprises a lifting and adjusting member (3061) and a carrying member (3062), wherein: The lifting and lowering adjusting member (3061) is arranged on the bottom wall of the pressing plate (305); The lifting and lowering adjusting member (3061) comprises a fixed housing (30611), a positioning stopper (30612), a movable frame (30613), a reset member (30614) and a positioning slide block (30615), wherein: The fixed housing (30611) is arranged on the bottom wall of the pressing plate (305); The positioning block (30612) is arranged in the fixed housing (30611); The movable frame (30613) is movably arranged in the fixed housing (30611); Two ends of the resetting component (30614) are respectively connected to the movable frame (30613) and the pressing plate (305); The positioning slider (30615) is arranged on the bottom wall of the movable frame (30613) and connected to the mounting member (3062); The carrying member (3062) is movably arranged on the lifting and lowering adjusting member (3061), and the carrying member (3062) is movably arranged in the limiting groove (203); The fixed shaft (307) is arranged on the support frame (303); The spray mechanism (308) is movably arranged on the fixed shaft (307), and the spray mechanism (308) is used to spray foam on the airtight door (40).

2. The airtightness leak detection device for airtight doors according to claim 1, characterized in that: The pressing mechanism (304) comprises a fastening frame (3041), a fastening plate (3042) and a fastening screw (3043), wherein: The fastening frame (3041) is arranged on the supporting frame (303); The fastening plates (3042) are in multiple groups, and the multiple groups of fastening plates (3042) are linearly arranged and arranged on the fastening frame (3041); The fastening screws (3043) are multiple groups, and the multiple groups of fastening screws (3043) are correspondingly arranged on the fastening plate (3042), and the fastening screws (3043) are rotatably connected to the pressure plate (305).

3. The airtightness leak detection device for airtight doors according to claim 1, characterized in that: The mounting member (3062) includes a mounting plate (30621) and a limiting slide groove (30622), wherein: The mounting plate (30621) is movably arranged on the positioning slider (30615); The limiting slide groove (30622) is provided on the mounting plate (30621), and the positioning slider (30615) is inserted into the limiting slide groove (30622).

4. The airtightness leak detection device for airtight doors according to claim 1, characterized in that: The spray mechanism (308) comprises a movable collar (3081), a through pipe (3082) and a spray component (3083), wherein: The movable collar (3081) is movably arranged on the fixed shaft (307), and the movable collar (3081) is connected to the support frame (303) through a hose; The through pipe (3082) is arranged on the movable sleeve (3081); The spray components (3083) are multiple groups, and the multiple groups of spray components (3083) are linearly arranged on the through pipe (3082). The spray components (3083) are used to spray foam on the surface of the airtight door (40).

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