A detection device for sealing civil air defense door
By designing a clamping and support mechanism, and using a double-headed lead screw and servo motor to drive the clamping plate to hold the air-raid shelter door and the housing, the problem of cumbersome installation and disassembly in the airtightness testing of air-raid shelter doors is solved, and automated and efficient testing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI SHUNTAI PROTECTION TECH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-12
Smart Images

Figure CN224354016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airtightness testing technology, specifically a testing device for a sealed air-raid shelter door. Background Technology
[0002] Air tightness testing is a crucial piece of equipment in industrial manufacturing, used to test the air tightness of products. In order to test air defense doors, it is necessary to use testing devices to determine their sealing performance.
[0003] In actual use, when conducting airtightness testing on air-raid shelter doors, it takes time to install and fix the doors in the testing position so that the testing work can proceed. This operation is cumbersome, time-consuming, and labor-intensive, making it difficult to easily install and remove the air-raid shelter doors, which in turn affects the testing efficiency of the testing device. Utility Model Content
[0004] The purpose of this invention is to provide a detection device for sealed air-raid shelter doors to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] A detection device for a sealed air-raid shelter door includes a base plate and a top plate. A housing and the main body of the air-raid shelter door are placed sequentially on the upper side of the two top plates. The housing has a cavity with an opening on one side. A pressure gauge communicating with the cavity is fixedly connected to one side of the housing. An air pipe communicating with the cavity is fixedly connected to one end of the housing. A first rubber pad is fixedly connected to the other side of the housing. A clamping mechanism includes two first clamping plates and two second clamping plates located above the base plate. A second rubber pad is fixedly connected to one side of each of the two first clamping plates. A third rubber pad is fixedly connected to one side of each of the two second clamping plates. A support mechanism includes an electric push rod. A fixing block is fixedly connected to the output end of the electric push rod.
[0007] Preferably, a fixed seat is fixedly connected to the lower side of both top plates, and a double-ended lead screw is rotatably connected inside the two fixed seats. Two lead screw sleeves are provided on the two double-ended lead screws, and one side of the first clamping plate and the second clamping plate are respectively fastened to the two lead screw sleeves.
[0008] Preferably, each of the two top plates has a slide rod two that is parallel to the double-ended lead screw two fixedly connected inside. The inside of the lead screw sleeve two is slidably placed on the slide rod two. Each of the two fixed seats has a second servo motor fixedly connected to one side. The output shaft of the second servo motor is fastened to the double-ended lead screw two.
[0009] Preferably, one side of the fixing block can abut against the main body of the air-raid shelter door, a side plate is fixedly connected to the upper side of the top plate, one side of the side plate is fastened to the electric push rod, and a reinforcing block is fixedly connected between the two fixing seats and the top plate.
[0010] Preferably, two symmetrically arranged support plates are fixedly connected to the upper side of the base plate. A double-ended lead screw is rotatably connected inside the two support plates. Two lead screw sleeves adapted to the double-ended lead screw are provided on the double-ended lead screw. The upper sides of the two lead screw sleeves are respectively fastened to two fixed seats. A slide rod is fixedly connected inside the two support plates. The inside of the lead screw sleeve is slidably placed on the slide rod. A first servo motor is fixedly connected to one side of the support plate. The output shaft of the first servo motor is fastened to the double-ended lead screw.
[0011] Preferably, a mounting bracket is fixedly connected to the upper side of the base plate, an electric slide is fixedly connected to the top of the mounting bracket, an electric slider adapted to the electric slide is provided on the electric slide, and a gas leak detector is fixedly provided on the lower side of the electric slider.
[0012] The beneficial effects of this utility model are:
[0013] 1. This utility model uses a double-headed screw to drive a clamping mechanism to move in opposite directions, simultaneously clamping the box and the front and rear sides of the air-raid shelter door. Then, the box and the air-raid shelter door are moved and adjusted to fit together, achieving fast and stable automatic loading and unloading, reducing manual intervention, improving testing efficiency and reducing labor intensity.
[0014] 2. This utility model ensures that the air defense door remains firmly in place during the testing process by using a fixed block for auxiliary fixation and a rubber pad to enhance friction. Combined with high-pressure air tightness testing and the movement detection of a gas leak detector driven by an electric slide table, it achieves automated and high-precision leak detection, thereby improving test safety and the reliability of results. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a utility model Figure 1 A schematic diagram of the structure of the first clamping plate and the second rubber pad;
[0018] Figure 3 This is a utility model Figure 1 Structural diagram of the central fixed base and top plate;
[0019] Figure 4 This is a utility model Figure 1 A schematic diagram of the structure of the second clamping plate and the third rubber pad;
[0020] Figure 5 This is a utility model Figure 3 Installation diagram of the electric slider and gas leak detector;
[0021] The attached figures are labeled as follows:
[0022] 1. Base plate; 2. Support plate; 3. Double-ended lead screw one; 4. Lead screw sleeve one; 5. Fixing seat; 6. Top plate; 7. Box body; 8. Main body of the air-raid shelter door; 9. First servo motor; 10. Slide rod one; 11. Pressure gauge; 12. Gas pipe; 13. First rubber pad; 14. Double-ended lead screw two; 15. Lead screw sleeve two; 16. First clamping plate; 17. Second rubber pad; 18. Slide rod two; 19. Second servo motor; 20. Second clamping plate; 21. Third rubber pad; 22. Side plate; 23. Electric push rod; 24. Fixing block; 25. Mounting bracket; 26. Electric slide table; 27. Electric slider; 28. Gas leak detector; 29. Reinforcing block; 99. Cavity. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1 to 5 As shown, a detection device for a sealed air-raid shelter door includes,
[0025] The base plate 1 and the top plate 6 are respectively placed on the upper sides of the two top plates 6. A box body 7 and a main body of the air-raid shelter door 8 are placed on the top side of the box body 7. The box body 7 has a cavity 99 with an opening on one side. A pressure gauge 11, which communicates with the cavity 99, is fixedly connected to one side of the box body 7. An air pipe 12, which communicates with the cavity 99, is fixedly connected to one end of the box body 7. A first rubber pad 13 is fixedly connected to the other side of the box body 7.
[0026] The clamping mechanism includes two first clamping plates 16 and two second clamping plates 20 located above the base plate 1. A second rubber pad 17 is fixedly connected to one side of each of the two first clamping plates 16. The second rubber pads 17 on the first clamping plates 16 increase the friction with the housing 7, thereby securing the housing 7 in place. A third rubber pad 21 is fixedly connected to one side of each of the two second clamping plates 20.
[0027] The support mechanism includes an electric push rod 23, model HB-DJ801, and a fixing block 24 is fixedly connected to the output end of the electric push rod 23.
[0028] Both top plates 6 are fixedly connected to the lower side of a fixed seat 5. Both fixed seats 5 are rotatably connected to a double-ended lead screw 14. Both double-ended lead screws 14 are equipped with two lead screw sleeves 15 that are adapted to the double-ended lead screws 14. One side of the first clamping plate 16 and the second clamping plate 20 are respectively fastened to the two lead screw sleeves 15.
[0029] Both top plates 6 are fixedly connected to slide rods 18 parallel to the double-headed lead screw 14. The inside of the lead screw sleeve 15 is slidably placed on the slide rod 18. The slide rod 18 can limit and guide the two first clamping plates 16 and the second clamping plate 20, so that the two first clamping plates 16 and the second clamping plate 20 can stably clamp the personnel protection door and the box body 7. A second servo motor 19 is fixedly connected to one side of each of the two fixed seats 5. The output shaft of the second servo motor 19 is fastened to the double-headed lead screw 14.
[0030] One side of the fixing block 24 can abut against the main body 8 of the air defense door. The upper side of the top plate 6 is fixedly connected to the side plate 22. One side of the side plate 22 is fastened to the electric push rod 23. The two fixing seats 5 and the top plate 6 are both fixedly connected to the reinforcing block 29.
[0031] Two symmetrically arranged support plates 2 are fixedly connected to the upper side of the base plate 1. A double-ended lead screw 3 is rotatably connected inside the two support plates 2. Two lead screw sleeves 4 are provided on the double-ended lead screw 3 and are adapted to it. The upper sides of the two lead screw sleeves 4 are respectively fastened to two fixed seats 5. A sliding rod 10 is fixedly connected inside the two support plates 2. The inside of the lead screw sleeve 4 slides on the sliding rod 10. The sliding rod 10 can limit and guide the movement trajectory of the lead screw sleeve 4, so that the box body 7 and the main body of the air defense door 8 can move and fit smoothly, so as to facilitate the loading and unloading of the air defense door and ensure good safety. A first servo motor 9 is fixedly connected to one side of the support plate 2. The output shaft of the first servo motor 9 is fastened to the double-ended lead screw 3. The model of the servo motor is SMBL-60P.
[0032] A mounting bracket 25 is fixedly connected to the upper side of the base plate 1. An electric slide 26 is fixedly connected to the top of the inside of the mounting bracket 25. An electric slider 27 adapted to the electric slide 26 is provided on the electric slide 26. A gas leak detector 28 is fixedly provided on the lower side of the electric slider 27. The gas leak detector 28 is model KP816. The design principle of the gas leak detector 28 is to use the permeability of gas to detect the leak by measuring the rate at which gas permeates from the inside of the box 7 to the outside.
[0033] The working principle of the detection device for sealed air-raid shelter doors provided by this utility model is as follows:
[0034] By placing the housing 7 and the main body of the air-raid shelter door 8 onto the two top plates 6 respectively, and then simultaneously starting the two first servo motors 9, the output shafts of the two first servo motors 9 drive the two double-headed lead screws 14 to rotate. In this way, the two lead screw sleeves 15 on the two double-headed lead screws 14 can move towards each other, so as to drive the two first clamping plates 16 to clamp the front and rear sides of the housing 7, and then drive the two second clamping plates 20 to clamp the front and rear sides of the air-raid shelter door 8. In this way, the clamping mechanism of snap-fit clamping can stably position the housing 7. Then, start the first servo motor 9, so that the output shaft of the first servo motor 9 drives the double-headed lead screw 3 to rotate. At this time, the two lead screw sleeves 4 on the double-headed lead screw 3 can drive the two fixed seats 5 to move towards each other, so that the housing 7 and the main body of the air-raid shelter door 8 can be tightly fitted and installed together. There is no need for manual installation of the main body of the air-raid shelter door 8, saving time and effort, thus enabling quick and convenient loading and unloading of the air-raid shelter door and improving the detection efficiency of the detection device.
[0035] By activating the electric push rod 23, the output end of the electric push rod 23 can drive the fixing block 24 to extend and fit against the outside of the air defense door body 8, so that the fixing block 24 can support and position the air defense door. In addition, the third rubber pad 21 on the second clamping plate 20 can increase the friction with the air defense door body 8, so as to firmly clamp the air defense door and prevent the air defense door from loosening and slipping, thus improving the safety of the testing work. Then, high-pressure gas is injected into the cavity 99 of the box 7 through the air pipe 12, so that the cavity 99 can reach the test air pressure. After waiting for a period of time, the pressure value on the pressure gauge 11 is observed to determine whether the air defense door is qualified for air tightness. Then, by using the electric slide table 26 and the electric slider 27 in combination, the electric slider 27 drives the gas leak detector to move on the electric slide table 26 to detect whether there is gas leakage in the box 7 and the area above the air defense door body 8.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A detection device for a sealed air-raid shelter door, characterized in that: include, A bottom plate (1) and a top plate (6), with a box (7) and a main body of a fire door (8) placed sequentially on the upper side of the two top plates (6). The box (7) has a cavity (99) with an opening on one side. A pressure gauge (11) communicating with the cavity (99) is fixedly connected to one side of the box (7). An air pipe (12) communicating with the cavity (99) is fixedly connected to one end of the box (7). A first rubber pad (13) is fixedly connected to the other side of the box (7). A clamping mechanism comprising two first clamping plates (16) and two second clamping plates (20) located above the base plate (1), wherein a second rubber pad (17) is fixedly connected to one side of each of the two first clamping plates (16), and a third rubber pad (21) is fixedly connected to one side of each of the two second clamping plates (20); and, The support mechanism includes an electric push rod (23), and a fixed block (24) is fixedly connected to the output end of the electric push rod (23).
2. The detection device for a sealed air-raid shelter door according to claim 1, characterized in that, The two top plates (6) are fixedly connected to the lower side of the fixed base (5). The two fixed bases (5) are rotatably connected to the inside of the two fixed bases (5). The two double-headed screws (14) are provided with two screw sleeves (15) that are adapted to the double-headed screws (14). The first clamping plate (16) and the second clamping plate (20) are respectively fastened to the two screw sleeves (15).
3. The detection device for a sealed air-raid shelter door according to claim 2, characterized in that, The two top plates (6) are each fixedly connected to a slide rod (18) parallel to the double-headed lead screw (14). The inside of the lead screw sleeve (15) is slidably placed on the slide rod (18). The two fixed seats (5) are each fixedly connected to a second servo motor (19) on one side. The output shaft of the second servo motor (19) is fastened to the double-headed lead screw (14).
4. The detection device for a sealed air-raid shelter door according to claim 1, characterized in that, One side of the fixing block (24) can abut against the main body (8) of the air defense door. The top plate (6) is fixedly connected to the side plate (22). One side of the side plate (22) is fastened to the electric push rod (23). The two fixing seats (5) and the top plate (6) are both fixedly connected to the reinforcing block (29).
5. The detection device for a sealed air-raid shelter door according to claim 1, characterized in that, The upper side of the base plate (1) is fixedly connected to two symmetrically arranged support plates (2). The two support plates (2) are rotatably connected to a double-headed lead screw (3). The double-headed lead screw (3) is provided with two lead screw sleeves (4) that are adapted to the double-headed lead screw (3). The upper sides of the two lead screw sleeves (4) are respectively fixedly connected to two fixed seats (5). The two support plates (2) are fixedly connected to a slide rod (10). The inside of the lead screw sleeve (4) is slidably placed on the slide rod (10). The side of the support plate (2) is fixedly connected to a first servo motor (9). The output shaft of the first servo motor (9) is fixedly connected to the double-headed lead screw (3).
6. The detection device for a sealed air-raid shelter door according to claim 1, characterized in that, A mounting bracket (25) is fixedly connected to the upper side of the base plate (1). An electric slide (26) is fixedly connected to the top of the mounting bracket (25). An electric slider (27) adapted to the electric slide (26) is provided on the electric slide (26). A gas leak detector (28) is fixedly provided on the lower side of the electric slider (27).