A detection device for a civil air defense door

Abstract

The application relates to a detection device for a civil air defense door, which comprises a detection table, the surface of the detection table is provided with an embedded groove for placing a door leaf, the inner cavity of the embedded groove is provided with a supporting frame arranged below the detection table, the detection table is a sealed cavity, and the inner cavity of the detection table is communicated with a gas blowing pipeline located below the supporting frame, and the application relates to the technical field of civil air defense door detection. The detection device for the civil air defense door can inject a color-catching gas into the embedded groove through the gas blowing pipeline, then whether the gas escapes from the gap between the door leaf and the door plate is observed to judge the sealing state, the sealing property of door leaves with different widths can be detected, the self-adapting capability is high, and through the arrangement of multiple air bags, the air pressure is automatically balanced, the extrusion force on the side edges of the door leaf is adjusted, and the door leaf is more tightly covered.

Description

Technical Field

[0001] This invention relates to the field of air defense door testing technology, specifically to a testing device for air defense doors. Background Technology

[0002] Civil defense, also known as civil protection, includes civil defense doors, which are protective equipment used in civil defense operations such as air raid defense, disaster relief, rescue operations, and prevention and mitigation of disaster hazards. They are primarily used at various openings in civil defense projects to block shock waves, chemical agents, electromagnetic pulses, shrapnel, and early nuclear radiation, and must meet both protective and airtight requirements. Therefore, airtightness testing is a crucial indicator for evaluating the performance of civil defense doors.

[0003] Existing methods for testing airtight doors for civil defense purposes mostly involve water immersion, which detects air bubbles and wastes a lot of water. Furthermore, the tested doors need to be dried, and when limiting the door panels, they can only seal doors of a single size, not multiple sizes. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a testing device for air defense doors, which solves the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a testing device for a civil defense door, comprising a testing platform, wherein the surface of the testing platform is provided with an embedded groove for placing a door leaf, the inner cavity of the embedded groove is provided with a support frame disposed below the testing platform, the testing platform is a sealed cavity, and the inner cavity of the testing platform is connected to an air blowing pipe located below the support frame, and the upper and lower surfaces of the testing platform located on the embedded groove are slidably connected with sliding plates driven by a driving cylinder, one side of each of the two sliding plates is fixedly connected with an elastic airbag, and the opposite sides of each of the two elastic airbags are fixedly connected with clamping plates for clamping the door leaf from the top and bottom;

[0006] The testing platform has pneumatic rods fixedly connected to the left and right sides of the embedded groove, each connected to an elastic airbag via an air intake pipe. The piston end of each pneumatic rod is fixedly connected to a sliding cylinder that slides on the surface of the testing platform. Both ends of the sliding cylinder are connected to top plates via sliding rods. The two top plates abut against the sides of two clamping plates, respectively. A compression airbag is fixedly connected to the side of each sliding cylinder, and two telescopic airbags are fixedly connected to both sides of each compression airbag. The two telescopic airbags are fixedly connected to the sides of the two top plates, respectively. In use, the door leaf is placed in the embedded groove. Then, the drive cylinder drives the sliding plate to move, and the two sliding plates move the clamping plates to compress the sides of the door leaf. When the elastic airbag is compressed, the internal gas enters the pneumatic rod through the air intake pipe, pushing the sliding cylinder towards both sides of the door leaf. At this time, the clamping plate squeezes the two top plates, compressing the telescopic airbag. Then, both the telescopic airbag and the compression airbag are squeezed against the sides of the door leaf, sealing the four sides of the door leaf. A sealed space is then formed in the inner cavity of the testing platform. A brightly colored gas is injected into the embedded groove through the air blowing pipe. The sealing status is judged by observing whether gas escapes from the gap between the door leaf and the door panel. It can perform sealing tests on door leaves of different widths, has strong adaptability, and automatically balances the air pressure and adjusts the squeezing force on the sides of the door leaf through the setting of multiple airbags, resulting in a tighter seal.

[0007] As a further aspect of the present invention: rubber strips are covered on opposite sides of the two clamping plates. The rubber strips are squeezed between the clamping plates and the door leaf to seal the gap between the clamping plates and the door leaf, and to seal the upper and lower sides of the door leaf.

[0008] As a further aspect of the present invention: a limiting block facing the sliding plate is fixedly connected to one side of the clamping plate. By setting the limiting block, the distance between the sliding plate and the clamping plate can be limited to prevent excessive compression from damaging the elastic airbag.

[0009] As a further aspect of the present invention: the upper and lower clamping plates, the left and right telescopic airbags, and the compression airbags above and below the telescopic airbags have rectangular cavities inside the partition for sealing the door leaf.

[0010] As a further aspect of the present invention: the bottom of the telescopic airbag, the compression airbag, and the clamping plate are all connected to the surface of the testing table by elastic bands, and the gaps are sealed by the elastic bands, so that the sealing effect can be guaranteed even when the telescopic airbag, the compression airbag, and the clamping plate move.

[0011] As a further aspect of the present invention: multiple air blowing pipes are provided and are evenly distributed within the gaps of the support frame.

[0012] Compared with the prior art, the present invention has the following advantages: By injecting a brightly colored gas into the embedded groove through the air blowing pipe, the sealing status is judged by observing whether gas escapes from the gap between the door leaf and the door panel. It can perform sealing tests on door leaves of different widths, has strong adaptability, and automatically balances the air pressure and adjusts the squeezing force on the side of the door leaf through the setting of multiple airbags, resulting in a tighter wrapping. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of the door leaf in the present invention, in its placement state;

[0014] Figure 2 This is a top view of the structure of the present invention.

[0015] In the diagram: 1. Testing platform; 2. Drive cylinder; 3. Sliding plate; 4. Elastic airbag; 5. Clamping plate; 6. Limiting block; 7. Top plate; 8. Air inlet pipe; 9. Pneumatic rod; 10. Sliding cylinder; 11. Compression airbag; 12. Telescopic airbag; 13. Embedded groove; 14. Door leaf; 15. Support frame; 16. Air blowing pipe. Detailed Implementation

[0016] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0017] Please see Figure 1-2 The present invention provides a technical solution: a testing device for a civil defense door, including a testing platform 1. The surface of the testing platform 1 is provided with an embedded groove 13 for placing a door leaf 14. The inner cavity of the embedded groove 13 is provided with a support frame 15 located below the testing platform 1. The testing platform 1 is a sealed cavity, and the inner cavity of the testing platform 1 is connected to an air blowing pipe 16 located below the support frame 15. The upper and lower surfaces of the testing platform 1 located in the embedded groove 13 are slidably connected with sliding plates 3 driven by a driving cylinder 2. One side of each of the two sliding plates 3 is fixedly connected with an elastic airbag 4. The opposite sides of the two elastic airbags 4 are fixedly connected with clamping plates 5 for clamping the door leaf 14 from the top and bottom.

[0018] On the left and right sides of the test platform 1, in the recessed groove 13, pneumatic rods 9 are fixedly connected to the surfaces, which are connected to the elastic airbags 4 via air inlet pipes 8. The piston end of the pneumatic rod 9 is fixedly connected to a sliding cylinder 10 that slides on the surface of the test platform 1. Both ends of the sliding cylinder 10 are connected to top plates 7 via sliding rods. The two top plates 7 abut against the sides of the two clamping plates 5 respectively. Compression airbags 11 are fixedly connected to the sides of the sliding cylinder 10. Telescopic airbags 12 are fixedly connected to both sides of the compression airbags 11. The two telescopic airbags 12 are fixedly connected to the sides of the two top plates 7 respectively. In use, the door leaf 14 is placed in the recessed groove 13. Then, the drive cylinder 2 drives the sliding plate 3 to move. The sliding plates 3 on both sides drive the clamping plates 5 to move, compressing the sides of the door leaf 14. During compression, the elastic airbags 14 spring back to the side. When the airbag 4 is compressed, the gas inside enters the pneumatic rod 9 through the air intake pipe 8, pushing the sliding cylinder 10 to move towards both sides of the door leaf 14. At this time, the clamping plate 5 squeezes the two top plates 7, compressing the telescopic airbag 12. Then, the telescopic airbag 12 and the compression airbag 11 are both squeezed against the sides of the door leaf 14, sealing the four sides of the door leaf 14. A sealed space is then formed in the inner cavity of the testing platform 1. A brightly colored gas is injected into the embedded groove 13 through the air blowing pipe 16. The sealing status is judged by observing whether gas escapes from the gap between the door leaf 14 and the door panel. The sealing performance of door leaves 14 of different widths can be tested. It has strong adaptability and automatically balances the air pressure and adjusts the squeezing force on the sides of the door leaf 14 through the setting of multiple airbags, making the coverage tighter.

[0019] Both clamping plates 5 have rubber strips covering their opposite sides. The rubber strips are squeezed between the clamping plates 5 and the door leaf 14 to seal the gap between the clamping plates 5 and the door leaf 14, and to seal the upper and lower sides of the door leaf 14.

[0020] A limiting block 6 facing the sliding plate 3 is fixedly connected to one side of the clamping plate 5. By setting the limiting block 6, the distance between the sliding plate 3 and the clamping plate 5 can be limited to prevent excessive compression from damaging the elastic airbag 4.

[0021] The upper and lower clamping plates 5, the left and right telescopic airbags 12, and the compression airbags 11 above and below the telescopic airbags 12 have rectangular cavities inside the partition for sealing the door leaf 14.

[0022] The bottoms of the telescopic airbag 12, the compression airbag 11, and the clamping plate 5 are all connected to the surface of the testing table 1 by elastic bands. The elastic bands seal the gaps, ensuring a sealing effect even when the telescopic airbag 12, the compression airbag 11, and the clamping plate 5 move.

[0023] Multiple air blowing pipes 16 are provided and are evenly distributed within the gaps of the support frame 15.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A detection device of a civil air defense door, comprising a detection table (1), a surface of the detection table (1) is provided with an embedded groove (13) for placing a door leaf (14), characterized in that: The inner cavity of the embedded groove (13) is provided with a support frame (15) arranged below the detection table (1), the detection table (1) is a sealed cavity, and the inner cavity of the detection table (1) is communicated with a blowing pipeline (16) located below the support frame (15), the detection table (1) is slidingly connected with a sliding plate (3) driven by a driving cylinder (2) on the surfaces on the upper and lower sides of the embedded groove (13), one side of each of the two sliding plates (3) is fixedly connected with an elastic air bag (4), and opposite sides of the two elastic air bags (4) are fixedly connected with clamping plates (5) for clamping the door leaf (14) upward and downward; The surfaces on the left and right sides of the detection table (1) are fixedly connected with pneumatic rods (9) communicated with the elastic air bags (4) through air inlet pipelines (8), the piston end of the pneumatic rod (9) is fixedly connected with a sliding cylinder (10) slidingly connected on the surface of the detection table (1), both ends of the sliding cylinder (10) are connected with top plates (7) through sliding rods, the two top plates (7) are respectively abutted with the side edges of the two clamping plates (5), the side edge of the sliding cylinder (10) is fixedly connected with an extrusion air bag (11), both sides of the extrusion air bag (11) are fixedly connected with telescopic air bags (12), and the two telescopic air bags (12) are respectively fixedly connected with the side edges of the two top plates (7).

2. The detection device of a civil defense door according to claim 1, characterized in that: The opposite sides of the two clamping plates (5) are covered with rubber strips.

3. The detection device of a civil defense door according to claim 1, characterized in that: One side of the clamping plate (5) is fixedly connected with a limiting stopper (6) towards the sliding plate (3).

4. The detection device of a civil defense door according to claim 1, characterized in that: The two clamping plates (5) are internally partitioned with the two telescopic air bags (12) and the extrusion air bags (11) above and below the telescopic air bags (12) to form rectangular cavities for sealing the door leaf (14).

5. The detection device of a civil defense door according to claim 1, characterized in that: The bottoms of the telescopic air bags (12), the extrusion air bags (11) and the clamping plates (5) are connected with the surface of the detection table (1) through elastic belts.

6. The detection device of a civil defense door according to claim 1, characterized in that: The blowing pipeline (16) is provided with a plurality of blowing pipelines, which are uniformly arranged in the gaps of the support frame (15).

Images