A civil air defense door detection device

Abstract

The application discloses a civil air defense door detection device, and belongs to the technical field of civil air defense door detection equipment, which comprises a detection device and a conveying device. The detection device is used for detecting the water tightness and air tightness of a civil air defense door. The conveying device is matched with the detection device and is used for conveying the civil air defense door. The detection device comprises, in sequence, a sealing assembly, a detection assembly, a fixing assembly and a protection assembly. The protection assembly and the sealing assembly are respectively arranged on the two sides of the detection assembly. The sealing assembly and the protection assembly are used for sealing the detection assembly and the civil air defense door. The fixing assembly is arranged between the protection assembly and the detection assembly and is used for fixing the civil air defense door. The civil air defense door detection device can not only realize quick fixing and effective sealing of the civil air defense door, improve the accuracy of air tightness and water tightness detection, but also is equipped with a special conveying device, so that the civil air defense door is convenient to convey, the labor intensity of workers is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of air defense door testing equipment, and particularly relates to an air defense door testing device. Background Technology

[0002] Civil defense, also known as civil defense, includes civil defense doors, which are protective equipment mainly used in various openings of civil defense projects to block shock waves, chemical agents, electromagnetic pulses, shrapnel, and early nuclear radiation. They are a means of preventing and mitigating disaster hazards and must meet the requirements of protection and airtightness. Among these, watertightness and airtightness testing are important indicators for evaluating the performance of civil defense doors.

[0003] After the civil defense door is manufactured, its water tightness and air tightness need to be tested to ensure that it can effectively prevent water from entering in the event of floods, groundwater seepage, etc., and protect the safety of personnel and equipment inside the civil defense project.

[0004] Currently, existing airtightness and watertightness testing devices for air-raid shelter doors have many problems in use. On the one hand, the existing devices have complex fixing structures, are inconvenient to operate, and have poor fixing effects when fixing air-raid shelter doors. During the testing process, the air-raid shelter doors are prone to displacement, affecting the accuracy of the test results. On the other hand, the sealing effect of the sealing components is poor. Under continuous changes in water pressure, the sealing components are prone to deformation, resulting in test errors and making it impossible to accurately detect the watertightness of the air-raid shelter doors. In addition, most existing air-raid shelter door testing devices do not have dedicated transportation equipment. Due to the large weight of air-raid shelter doors, external equipment is required during installation and transportation. This not only increases the difficulty of installation and the labor intensity of workers, but also easily damages the air-raid shelter doors during transportation, and reduces the testing efficiency.

[0005] Therefore, in view of the problems existing in the above-mentioned prior art, it is necessary to design a civil defense door testing device with reasonable structure, convenient operation, good fixing effect, excellent sealing performance and a special transportation device, so as to improve the accuracy and efficiency of airtightness and watertightness testing of civil defense doors. Summary of the Invention

[0006] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a civil defense door testing device, which can not only achieve rapid fixing and effective sealing of civil defense doors, improving the accuracy of airtightness and watertightness testing, but also is equipped with a special transportation device to facilitate the transportation of civil defense doors, reduce the labor intensity of workers, and improve testing efficiency.

[0007] The technical solution adopted by the present invention is as follows: a civil defense door testing device, comprising a testing device and a transport device, wherein the testing device is used to test the water tightness and air tightness of the civil defense door, and the transport device is matched with the testing device for transporting the civil defense door; the testing device comprises, in sequence, a sealing component, a testing component, a fixing component, and a protective component; the protective component and the sealing component are respectively disposed on both sides of the testing component, and the sealing component and the protective component seal the testing component and the civil defense door; the fixing component is disposed between the protective component and the testing component, and the fixing component is used to fix the civil defense door.

[0008] The detection component includes a base, a lower support platform installed on the upper wall of the base, a detection frame installed on the upper wall of the lower support platform, the detection frame being a hollow frame structure matching the shape of the air defense door, an upper support platform installed on the upper end of the detection frame, a limit plate installed on the upper wall of the upper support platform, a sprocket movably installed at one end of the limit plate, and a connecting plate also installed on the upper support platform.

[0009] Furthermore, the upper wall of the lower support platform is provided with a lower limiting groove 1 and a lower limiting groove 2. The lower limiting groove 2 is located inside the lower limiting groove 1 and close to the detection frame. The upper wall of the upper support platform is provided with an upper limiting groove 1 and an upper limiting groove 2. The upper limiting groove 1 corresponds to the lower limiting groove 1 in position, and the upper limiting groove 2 corresponds to the lower limiting groove 2 in position. The upper wall of the limiting plate is provided with an upper sliding groove, and the bottom wall of the limiting plate is provided with a lower sliding groove.

[0010] The protective assembly includes a protective frame, a fixed frame, and a first mounting base. The upper and lower ends of the fixed frame are movably engaged in an upper limit groove and a lower limit groove, respectively. The protective frame is located on the inner side wall of the fixed frame and has a hollow frame structure that matches the shape of the air-raid shelter door. The first mounting base is located on the upper wall of the fixed frame and is movably engaged in an upper sliding groove. A second sealing airbag with a frame structure is installed on the side of the protective frame near the detection frame. The second sealing airbag is located at the edge of the hollow frame structure of the protective frame. A spring is installed between the side wall of the first mounting base and the connecting plate. The spring is located between the limiting plate and the upper support platform.

[0011] In a preferred embodiment of the present invention, the fixing component includes an upper fixing member, a lower fixing member, a second mounting base, and a transmission plate. The upper fixing member is movably engaged in the upper limit groove, and the lower fixing member is movably engaged in the lower limit groove. The upper and lower ends of the transmission plate are detachably mounted on the side walls of the upper and lower fixing members respectively by bolts. The second mounting base is mounted on the upper wall of the upper fixing member and is movably engaged in the lower sliding groove.

[0012] A chain is movably wound around the sprocket, one end of which is connected to the side wall of the second mounting base, and the other end of which is connected to the side wall of the first mounting base.

[0013] In a preferred embodiment of the present invention, the sealing assembly includes a support base, a first sealing airbag, an insert rod, and a mounting plate. The support base is connected to the side wall of the detection frame. The rear end of the first sealing airbag wraps around the edge of the hollow structure of the detection frame and is positioned between the air-raid shelter door and the detection frame. Insert holes are installed on the left and right side walls and the top of the first sealing airbag. The lower end of the first sealing airbag is located on the upper wall of the support base. The mounting plate is located at the front end of the first sealing airbag and on the upper wall of the support base. The mounting plate has multiple sets of fixing holes for fixing. The detection frame and the first sealing airbag... The side connected to the airbag has multiple sets of threaded holes for fixing. The fixing holes and threaded holes are matched in position. The two ends of the insertion hole are respectively connected to the fixing holes and the threaded holes. One end of the insertion rod passes through the fixing hole and the insertion hole in sequence and is then rotated into the threaded hole by the thread. The other end of the insertion rod is attached to the mounting plate to realize the support and fixation of the first airbag. A sealed chamber is formed between the test frame, the air defense door and the first airbag for water tightness testing. When the water pressure changes continuously, the insertion rod can prevent the first airbag from deforming and reduce test errors.

[0014] The first sealing airbag is equipped with a water injection valve and an exhaust valve at its upper end; an air intake valve is installed on the right side of the first sealing airbag.

[0015] Furthermore, the transport device includes a transport plate, the bottom wall of which is equipped with wheels for driving, and the upper wall of which is equipped with a support plate for fixing the air defense door. There are two sets of support plates, which are symmetrically placed on the upper wall of the transport plate. A second hydraulic rod and a lower limit groove three are installed between the support plates. The fixed end of the second hydraulic rod is located on the upper wall of the transport plate, and the lower limit groove three is connected to the movable end of the second hydraulic rod. The lower limit groove three can slide up and down between the support plates. The lower fixing member can be movably engaged in the lower limit groove three. The bottom walls of the lower limit groove one, lower limit groove two and lower limit groove three are all provided with ball bearings to reduce friction.

[0016] The detection device further includes a drive assembly, which includes a fixed plate. One side of the lower end of the fixed plate is connected to the side wall of the support base. A first hydraulic rod is installed on the upper end of the fixed plate. A pusher is installed on the movable end of the first hydraulic rod. The pusher is fixedly connected to the transmission plate.

[0017] The beneficial effects of the present invention after adopting the above structure are as follows:

[0018] (1) Through the combination of upper fixing parts, lower fixing parts and transmission plate, the upper and lower ends of the air defense door can be directly inserted into the corresponding fixing parts, and then the transmission plate is connected by bolts to form a double fixation. The operation is simple and the fixing effect is more solid. At the same time, the fixing parts are respectively movably inserted into the upper limit groove 2 and the lower limit groove 2, and the lower limit groove 3 of the transportation device is used to achieve positioning, ensuring that the air defense door is accurately placed between the detection frame and the protection frame, and avoiding detection errors caused by door displacement during the detection process.

[0019] (2) Under the action of the sprocket and chain, the fixing component, the protective component and the detection component can be placed in a staggered manner, which makes it easy to clean the second sealing airbag on the frame of the air defense door and the first sealing airbag at the edge of the detection frame through the cleaning device, so as to prevent impurities from affecting the sealing effect and improve the accuracy of the test results.

[0020] (3) The first sealing airbag wraps around the edge of the test frame and is fixed by the insert rod. The second sealing airbag fits the back side of the civil defense door. The double sealing can effectively isolate external environmental interference and ensure the sealing performance of the sealed chamber. The insert rod passes through the mounting plate and the first sealing airbag and is threadedly connected to the test frame. It can limit the deformation of the first sealing airbag when the water pressure changes continuously, solve the test error problem caused by deformation of the existing sealing components, and improve the accuracy of water tightness test.

[0021] (4) The transport device can directly carry the movement of the air defense door without the need for external handling equipment, thus avoiding the risk of damage during the handling of the air defense door. The second hydraulic rod of the transport device can drive the lower limit groove three to slide up and down, accurately docking with the lower fixing part of the detection device, realizing the rapid positioning and installation of the air defense door, reducing the workload of manual adjustment by the staff, and reducing labor intensity.

[0022] (5) The fixing and sealing process does not require complicated assembly. The positioning of the air defense door and the construction of the sealing chamber can be completed quickly by driving the hydraulic rod and linking with the chain, which shortens the test preparation time. Moreover, the same device can complete the air tightness and water tightness tests one after another without changing the equipment, thus improving the overall test efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a civil defense door detection device proposed in this invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of a civil defense door detection device proposed in this invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the structure of a civil defense door detection device proposed in this invention. Figure 3 ;

[0026] Figure 4This is a cross-sectional view of a civil defense door detection device proposed in this invention. Figure 1 ;

[0027] Figure 5 for Figure 4 A magnified view of a portion at point A;

[0028] Figure 6 for Figure 4 A magnified view of a portion at point B;

[0029] Figure 7 for Figure 4 A magnified view of a portion at point C;

[0030] Figure 8 This is a cross-sectional view of a civil defense door detection device proposed in this invention. Figure 2 ;

[0031] Figure 9 for Figure 8 A magnified view of a portion at point D;

[0032] Figure 10 This is a schematic diagram of the structure of the fixing component proposed in this invention;

[0033] Figure 11 This is a schematic diagram of the structure of the transportation device proposed in this invention. Figure 1 ;

[0034] Figure 12 This is a schematic diagram of the structure of the transportation device proposed in this invention. Figure 2 .

[0035] In the attached drawings: 1. Detection device; 2. Transport device; 3. Sealing assembly; 4. Detection assembly; 5. Fixing assembly; 6. Protective assembly; 7. Base; 8. Lower support platform; 9. Detection frame; 10. Upper support platform; 11. Limiting plate; 12. Sprocket; 13. Connecting plate; 14. Lower limit groove one; 15. Lower limit groove two; 16. Upper limit groove one; 17. Upper limit groove two; 18. Upper sliding groove; 19. Lower sliding groove; 20. Protective frame; 21. Fixing frame; 22. First mounting base; 23. Second seal. 24. Airbag, 25. Spring, 26. Upper fixing component, 27. Lower fixing component, 28. Second mounting base, 29. Transmission plate, 30. Chain, 31. Support base, 32. First sealing airbag, 33. Insert rod, 34. Mounting plate, 35. Insertion hole, 36. Fixing hole, 37. Water injection valve, 38. Exhaust valve, 39. Transport plate, 40. Support plate, 41. Second hydraulic rod, 42. Lower limit groove, 43. Drive assembly, 44. Fixing plate, 45. First hydraulic rod, 46. Pushing component, 47. Air defense door.

[0036] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] like Figures 1-12 As shown, a civil defense door testing device includes a testing device 1 and a transport device 2. The testing device 1 is used to test the water tightness and air tightness of the civil defense door 46. The transport device 2 is matched with the testing device 1 and is used to transport the civil defense door 46. The testing device 1 includes a sealing component 3, a testing component 4, a fixing component 5, and a protective component 6 in sequence. The protective component 6 and the sealing component 3 are respectively disposed on both sides of the testing component 4. The sealing component 3 and the protective component 6 seal the testing component 4 and the civil defense door 46. The fixing component 5 is disposed between the protective component 6 and the testing component 4 and is used to fix the civil defense door 46.

[0040] The detection component 4 includes a base 7, a lower support platform 8 is installed on the upper wall of the base 7, and a detection frame 9 is installed on the upper wall of the lower support platform 8. The detection frame 9 is a hollow frame structure that matches the shape of the air defense door 46. An upper support platform 10 is installed on the upper end of the detection frame 9. A limit plate 11 is installed on the upper wall of the upper support platform 10. A sprocket 12 is movably installed on one end of the limit plate 11. A connecting plate 13 is also installed on the upper support platform 10.

[0041] The upper wall of the lower support platform 8 is provided with a lower limiting groove 14 and a lower limiting groove 2 15. The lower limiting groove 2 15 is located inside the lower limiting groove 14 and is close to the detection frame 9. The upper wall of the upper support platform 10 is provided with an upper limiting groove 16 and an upper limiting groove 2 17. The upper limiting groove 16 corresponds to the lower limiting groove 14, and the upper limiting groove 2 17 corresponds to the lower limiting groove 2 15. The upper wall of the limiting plate 11 is provided with an upper sliding groove 18, and the bottom wall of the limiting plate 11 is provided with a lower sliding groove 19.

[0042] The protective component 6 includes a protective frame 20, a fixed frame 21, and a first mounting base 22. The upper and lower ends of the fixed frame 21 are movably engaged in the upper limit groove 16 and the lower limit groove 14, respectively. The protective frame 20 is located on the inner side wall of the fixed frame 21. The protective frame 20 has a hollow frame structure and matches the shape of the air defense door 46. The first mounting base 22 is located on the upper wall of the fixed frame 21 and is movably engaged in the upper sliding groove 18. A second sealing airbag 23 with a frame structure is installed on the side of the protective frame 20 near the detection frame 9. The second sealing airbag 23 is located at the edge of the hollow frame structure of the protective frame 20. A spring 24 is installed between the side wall of the first mounting base 22 and the connecting plate 13. The spring 24 is located between the limiting plate 11 and the upper support platform 10.

[0043] The fixing component 5 includes an upper fixing member 25, a lower fixing member 26, a second mounting base 27, and a transmission plate 28. The upper fixing member 25 is movably engaged in the upper limit groove 17, and the lower fixing member 26 is movably engaged in the lower limit groove 15. The upper end and the lower end of the transmission plate 28 are detachably mounted on the side wall of the upper fixing member 25 and the side wall of the lower fixing member 26 respectively by bolts. The second mounting base 27 is mounted on the upper wall of the upper fixing member 25 and is movably engaged in the lower slide groove 19.

[0044] The lower end of the air-raid shelter door 46 to be tested is locked in the lower fixing member 26, and the upper end is locked in the upper fixing member 25. One side of the air-raid shelter door 46 is attached to the transmission plate 28. After being fixed, the air-raid shelter door 46 is placed between the testing frame 9 and the protective frame 20. The second sealing airbag 23 on the side wall of the protective frame 20 seals the back side frame of the air-raid shelter door 46.

[0045] A chain 29 is movably wound around the sprocket 12. One end of the chain 29 is connected to the side wall of the second mounting base 27, and the other end of the chain 29 is connected to the side wall of the first mounting base 22.

[0046] The sealing assembly 3 includes a support base 30, a first sealing airbag 31, an insert rod 32, and a mounting plate 33. The support base 30 is connected to the side wall of the detection frame 9. The rear end of the first sealing airbag 31 wraps around the edge of the hollow structure of the detection frame 9 and is located between the air-raid shelter door 46 and the detection frame 9. Insert holes 34 are installed on the left, right, and upper sides of the first sealing airbag 31. The lower end of the first sealing airbag 31 is located on the upper wall of the support base 30. The mounting plate 33 is located at the front end of the first sealing airbag 31 and on the upper wall of the support base 30. The mounting plate 33 has multiple sets of fixing holes 35 for fixing. The detection frame 9 and the first sealing airbag 31 are connected to the side wall of the detection frame 9. The airbag 31 is connected to a side with multiple sets of threaded holes for fixing. The fixing hole 35 is matched with the threaded hole. The two ends of the insertion hole 34 are respectively connected to the fixing hole 35 and the threaded hole. One end of the insertion rod 32 passes through the fixing hole 35 and the insertion hole 34 in sequence and is then rotated into the threaded hole by the thread. The other end of the insertion rod 32 is attached to the mounting plate 33 to realize the support and fixation of the first sealing airbag 31. A sealed chamber is formed between the test frame 9, the air defense door 46 and the first sealing airbag 31 for water tightness testing. When the water pressure changes continuously, the insertion rod 32 can prevent the first sealing airbag 31 from deforming and reduce test errors.

[0047] The first sealing airbag 31 is equipped with a water injection valve 36 and an exhaust valve 37 at its upper end. When water needs to be injected into the sealed cavity formed between the detection frame 9, the air defense door 46, and the first sealing airbag 31, the exhaust valve 37 is opened, and the water pump is connected to the water injection valve 36 through a water pipe to inject water into the sealed cavity. An air inlet valve is installed on the right side of the first sealing airbag 31. The air pump can fill the first sealing airbag 31 with gas, causing the first sealing airbag 31 to inflate. On the one hand, it can seal the air defense door 46 and the detection frame 9, and on the other hand, it can form a sealed cavity for testing.

[0048] The transport device 2 includes a transport plate 38. The bottom wall of the transport plate 38 is equipped with wheels for driving. The upper wall of the transport plate 38 is equipped with a support plate 39 for fixing the air defense door 46. There are two sets of support plates 39, which are symmetrically placed on the upper wall of the transport plate 38. A second hydraulic rod 40 and a lower limit groove 3 41 are installed between the support plates 39. The fixed end of the second hydraulic rod 40 is located on the upper wall of the transport plate 38. The lower limit groove 3 41 is connected to the movable end of the second hydraulic rod 40 and can slide up and down between the support plates 39. The lower fixing member 26 can be movably engaged in the lower limit groove 3 41. The bottom walls of the lower limit groove 1 14, the lower limit groove 2 15 and the lower limit groove 3 41 are all provided with balls to reduce friction.

[0049] The detection device 1 also includes a drive assembly 42, which includes a fixed plate 43. One side of the lower end of the fixed plate 43 is connected to the side wall of the support base 30. A first hydraulic rod 44 is installed on the upper end of the fixed plate 43. A pusher 45 is installed on the movable end of the first hydraulic rod 44. The pusher 45 is fixedly connected to the transmission plate 28.

[0050] The first sealing airbag 31 is equipped with a pressure sensor to monitor the water supply pressure in the testing device and ensure that the design static pressure value is reached. If the air-raid shelter door 46 leaks, the pressure will drop abnormally, thus determining whether the door is leaking. Humidity sensors are installed near the door frame sealing groove, the door hinge locking point, and the middle of the door to detect the humidity change on the back side of the air-raid shelter door 46 and directly capture the water vapor generated by the leakage.

[0051] The specific usage is as follows:

[0052] Initially, the first hydraulic rod 44 drives the pusher 45 and the transmission plate 28 to the lower end of the sprocket 12 away from the detection frame 9. At this time, the upper end of the transmission plate 28 is still connected to the upper fixing member 25 by bolts. The upper fixing member 25 is disengaged from the upper limit groove 17 under the drive of the first hydraulic rod 44. The protective frame 20 is located at the other end of the detection frame 9. The cleaning device cleans the frame of the air defense door 46, the second sealing airbag 23 on the protective frame 20, and the first sealing airbag 31 at the edge of the detection frame 9 to prevent impurities from affecting the sealing effect and thus affecting the accuracy of the test results. At this time, the lower end of the chain 29 connected to the second mounting seat 27 is in a relaxed state.

[0053] The transport device 2, which houses the air-raid shelter door 46, moves between the transmission plate 28 and the detection frame 9. The air-raid shelter door 46, fixed on the transport device 2, is positioned directly below the upper fixing member 25. The second hydraulic rod 40 operates, causing the lower limit groove 3 41 to move upward. The lower limit groove 3 41 then moves the upper lower fixing member 26 and the air-raid shelter door 46 upward, causing the upper end of the air-raid shelter door 46 to engage with the upper fixing member 25. The second hydraulic rod 40 stops operating, and at this point, the lower fixing member 26 is level with the lower limit groove 2 15. The first hydraulic rod 44 operates, pushing the upper fixing member 25 and the transmission plate 28 to move, causing the transmission plate 28 to fit tightly against the air-raid shelter door 46. The first hydraulic rod 44 stops operating, and at this point, the lower end of the chain 29 connected to the second mounting base 27 is stretched but still in a relaxed state. The lower end of the transmission plate 28 contacts the side wall of the lower fixing member 26 inside the transport device 2, and is fixed downward by bolts. The connection between component 26 and transmission plate 28 is established, and then the first hydraulic rod 44 works to push the upper fixed component 25, the lower fixed component 26 and the air defense door 46 to move through the transmission plate 28. The upper fixed component 25 is movably engaged in the upper limit groove 17, and the lower fixed component 26 is movably engaged in the lower limit groove 15. At this time, the lower end of the chain 29 connected to the second mounting seat 27 is gradually stretched and straightened. As the first hydraulic rod 44 continues to push, the fixed component 5 connected to the lower end of the chain 29 moves towards the detection frame 9. Through the setting of the sprocket 12, the protective component 6 connected to the upper end of the chain 29 also moves towards the detection frame 9. After moving a suitable distance, the work stops. At this time, the air defense door 46 is set between the detection frame 9 and the protective frame 20. The first sealing airbag 31 and the second sealing airbag 23 are respectively attached to the outer frame of the water-facing side and the back side of the air defense door 46.

[0054] The first sealing airbag 31 and the second sealing airbag 23 are inflated to seal the water-facing and back-facing sides of the air-raid shelter door 46, respectively. One end of the insertion rod 32 is sequentially moved through the fixing hole 35 and the insertion hole 34 and then rotated into the threaded hole. The other end of the insertion rod 32 is attached to the mounting plate 33 to support and fix the first sealing airbag 31. A sealed chamber is formed between the detection frame 9, the air-raid shelter door 46 and the first sealing airbag 31.

[0055] The airtightness of the air-raid shelter door 46 is tested by injecting compressed air into the sealed chamber through an air compressor to bring the pressure inside the chamber to the standard value and maintain a stable pressure. The pressure change inside the sealed chamber is monitored by a pressure sensor. If the pressure change is lower than the standard value, the airtightness is deemed to be qualified; otherwise, the leak point needs to be located and repaired.

[0056] After the airtightness test of the air-tightness of the air-raid shelter door 46 is passed, the watertightness test of the air-raid shelter door 46 is carried out. The air vent valve 37 is opened, and the water pump is connected to the water injection valve 36 through the water pipe to inject water into the sealed chamber until it is full. After that, the water pump stops working, the air vent valve 37 is closed, the water pump is disconnected from the water injection valve 36, and the pressure pump is connected to the water injection valve 36 to gradually increase the water pressure in the sealed chamber. After each increase, the pressure is paused for 3-5 minutes to observe whether the door body is deformed or whether there are signs of water leakage at the joints. After the specified static pressure value is reached, the pressure pump is turned off and the pressure stabilization stage is entered. The pressure stabilization time is not less than 30 minutes.

[0057] During the process, the pressure inside the cavity is monitored in real time by a pressure sensor. If the pressure continues to drop, it is necessary to first check whether the test fixture is leaking. After ruling out the fixture problem, if it is determined that there is obvious leakage in the door body, the test should be suspended and the leak point should be located. Pay special attention to the door frame sealing groove, hinge shaft hole, and locking rod penetration on the back side. If there is obvious water flow, water droplets, or wet marks, it is marked as an obvious leakage. Read the humidity sensor value. If the humidity in a certain area increases by more than 10%RH from the initial value, and the interference of ambient humidity is ruled out, it is determined to be a hidden leakage.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A detection device for air-raid shelter doors, characterized in that: The device includes a testing device (1) and a transport device (2). The testing device (1) is used to test the water tightness and air tightness of the air-raid shelter door (46). The transport device (2) is matched with the testing device (1) and is used to transport the air-raid shelter door (46). The testing device (1) includes a sealing component (3), a testing component (4), a fixing component (5), and a protective component (6) in sequence. The protective component (6) and the sealing component (3) are respectively located on both sides of the testing component (4). The sealing component (3) and the protective component (6) seal the testing component (4) and the air-raid shelter door (46). The fixing component (5) is located between the protective component (6) and the testing component (4). The fixing component (5) is used to fix the air-raid shelter door (46). The detection component (4) includes a base (7), a lower support platform (8) is installed on the upper wall of the base (7), a detection frame (9) is installed on the upper wall of the lower support platform (8), the detection frame (9) is a hollow frame structure that matches the shape of the air defense door (46), an upper support platform (10) is installed on the upper end of the detection frame (9), a limit plate (11) is installed on the upper wall of the upper support platform (10), a sprocket (12) is movably installed on one end of the limit plate (11), and a connecting plate (13) is also installed on the upper support platform (10). The sealing assembly (3) includes a support base (30), a first sealing airbag (31), an insert rod (32), and a mounting plate (33). The support base (30) is connected to the side wall of the detection frame (9). The rear end of the first sealing airbag (31) wraps around the edge of the hollow structure of the detection frame (9) and is located between the air defense door (46) and the detection frame (9). Insertion holes (34) are installed on the left and right side walls and the top of the first sealing airbag (31). The lower end of the first sealing airbag (31) is located on the upper wall of the support base (30). The mounting plate (33) is located at the front end of the first sealing airbag (31) and on the upper wall of the support base (30). The mounting plate (33) is provided with multiple sets of fixing holes (35) for fixing. The side of the detection frame (9) connected to the first sealing airbag (31) is provided with multiple sets of threaded holes for fixing. The fixing holes (35) and the threaded holes are matched in position. The two ends of the insertion hole (34) are respectively connected to the fixing hole (35) and the threaded hole. One end of the insertion rod (32) passes through the fixing hole (35) and the insertion hole (34) in sequence and is then rotated into the threaded hole by the thread. The other end of the insertion rod (32) is attached to the mounting plate (33). A sealed chamber is formed between the detection frame (9), the air defense door (46), and the first sealing airbag (31). The transport device (2) includes a transport plate (38), the bottom wall of which is equipped with wheels for driving, and the upper wall of the transport plate (38) is equipped with a support plate (39) for fixing the air defense door (46). The support plate (39) is provided in two sets, and the two sets of support plates (39) are symmetrically placed on the upper wall of the transport plate (38). A second hydraulic rod (40) and a lower limit groove (41) are installed between the support plates (39). The fixed end of the second hydraulic rod (40) is located on the upper wall of the transport plate (38), and the lower limit groove (41) is connected to the movable end of the second hydraulic rod (40).

2. The air-raid shelter door detection device according to claim 1, characterized in that: The upper wall of the lower support platform (8) is provided with a lower limit groove 1 (14) and a lower limit groove 2 (15). The lower limit groove 2 (15) is located inside the lower limit groove 1 (14) and is located close to the detection frame (9). The upper wall of the upper support platform (10) is provided with an upper limit groove 1 (16) and an upper limit groove 2 (17). The upper limit groove 1 (16) corresponds to the lower limit groove 1 (14) and the upper limit groove 2 (17) corresponds to the lower limit groove 2 (15). The upper wall of the limiting plate (11) is provided with an upper sliding groove (18) and the bottom wall of the limiting plate (11) is provided with a lower sliding groove (19).

3. The air-raid shelter door detection device according to claim 2, characterized in that: The protective component (6) includes a protective frame (20), a fixed frame (21), and a first mounting base (22). The upper and lower ends of the fixed frame (21) are respectively movably engaged in the upper limit groove (16) and the lower limit groove (14). The protective frame (20) is located on the inner side wall of the fixed frame (21). The protective frame (20) is a hollow frame structure that matches the shape of the air-raid shelter door (46). The first mounting base (22) is located on the upper wall of the fixed frame (21). The first mounting base (22) is movably connected to the upper sliding groove (18). The protective frame (20) is equipped with a second sealing airbag (23) of frame structure on the side near the detection frame (9). The second sealing airbag (23) is located at the edge of the hollow frame structure in the protective frame (20). A spring (24) is installed between the side wall of the first mounting base (22) and the connecting plate (13). The spring (24) is located between the limiting plate (11) and the upper support platform (10).

4. The air-raid shelter door detection device according to claim 3, characterized in that: The fixing component (5) includes an upper fixing member (25), a lower fixing member (26), a second mounting seat (27), and a transmission plate (28). The upper fixing member (25) is movably engaged in the upper limit groove (17), and the lower fixing member (26) is movably engaged in the lower limit groove (15). The upper end and the lower end of the transmission plate (28) are respectively detachably mounted on the side wall of the upper fixing member (25) and the side wall of the lower fixing member (26) by bolts. The second mounting seat (27) is mounted on the upper wall of the upper fixing member (25) and is movably engaged in the lower slide groove (19).

5. The air-raid shelter door detection device according to claim 4, characterized in that: A chain (29) is movably wound around the sprocket (12). One end of the chain (29) is connected to the side wall of the second mounting base (27), and the other end of the chain (29) is connected to the side wall of the first mounting base (22).

6. The air-raid shelter door detection device according to claim 5, characterized in that: The first sealing airbag (31) is provided with a water injection valve (36) and an exhaust valve (37) at its upper end; an air intake valve is installed on the right side of the first sealing airbag (31).

7. The air-raid shelter door detection device according to claim 6, characterized in that: The lower fixing member (26) can be movably engaged in the lower limiting groove three (41). The bottom walls of the lower limiting groove one (14), lower limiting groove two (15) and lower limiting groove three (41) are all provided with balls to reduce friction.

8. The air-raid shelter door detection device according to claim 7, characterized in that: The detection device (1) further includes a drive assembly (42), which includes a fixed plate (43). One side of the lower end of the fixed plate (43) is connected to the side wall of the support base (30). A first hydraulic rod (44) is installed on the upper end of the fixed plate (43). A pusher (45) is installed on the movable end of the first hydraulic rod (44). The pusher (45) is fixedly connected to the transmission plate (28).

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