Anti-leakage civil air defense door with airtight alarm detection function

Abstract

The invention relates to an anti-leakage civil air defense door with an airtight alarm detection function, and relates to the technical field of civil air defense door design, the anti-leakage civil air defense door comprises a door body, and the side edge of the door body is provided with a first detection mechanism and a second detection mechanism which are used for conducting airtight detection on the door body and a door frame. The first detection mechanism and the second detection mechanism which are used for carrying out air tightness detection on the connecting part of the door body and the door frame are arranged on the side edges of the door body correspondingly, during use, the first detection mechanism and the second detection mechanism are used for carrying out detection correspondingly, and at the moment, the first detection mechanism and the second detection mechanism are installed on the door body; the detection function can be realized, and anti-leakage secondary sealing can be performed on places with poor air tightness, so that the air tightness of the door body can be ensured, and the problem that the air tightness of the connection part of the civil defense door and the door frame is difficult to detect in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of civil air defense door design, and in particular to an anti-leakage civil air defense door with airtight alarm detection. Background Art

[0002] Civil defense doors are key equipment for the entrances and exits of people's defense projects. They have multiple functions such as waterproof, explosion-proof, and air pollution resistance. Therefore, especially for civil defense doors that are resistant to air pollution, that is, civil defense doors that have strict requirements on airtightness, their airtightness is particularly important.

[0003] For example, in the patent document with application number 202123081354.8, a civil defense door air tightness detection device is disclosed, and a device is specifically disclosed to detect the leakage amount of the civil defense door per unit time, and compare it with the standard value to determine whether it is qualified.

[0004] In the above technical scheme, the airtightness of the civil air defense door is usually not tested on the civil air defense door body, but on the connection between the civil air defense door and the door frame when it is closed. Therefore, only using a direct airtightness detection device for the civil air defense door will result in inaccurate results. Summary of the invention

[0005] The object of the present invention is to provide a leakage-proof human defense door with airtight alarm detection.

[0006] The technical problem solved by the present invention is to solve the problem in the prior art that it is difficult to detect the airtightness of the connection between the civil air defense door and the door frame.

[0007] The present invention can be implemented through the following technical scheme: an anti-leakage civil air defense door with airtight alarm detection, comprising a door body, and the sides of the door body are respectively provided with a first detection mechanism and a second detection mechanism for performing airtightness detection on the door body and the door frame.

[0008] A further technical improvement of the present invention is that the first detection mechanism includes a detection base, the detection base is fixedly mounted on a rotating base, and a rotating rod is rotatably arranged on the rotating base, and the rotating rod is fixedly mounted on the output end of the pushing cylinder, and the pushing cylinder is rotatably mounted on the door body.

[0009] A further technical improvement of the present invention is that a detection cavity for detecting air tightness is provided on the detection substrate.

[0010] A further technical improvement of the present invention is that a T-shaped sliding block is fixedly installed on the rotating base, a sliding base is fixed on the door body, and an arc-shaped sliding groove is provided on the sliding base, and the T-shaped sliding block and the arc-shaped sliding groove are slidably connected.

[0011] A further technical improvement of the present invention is that a detection support plate is fixed on the side of the detection cavity, air holes are opened on the detection support plate, a detection airbag is fixed on the side of the detection support plate, and a contact sensor for cooperating with the detection airbag is fixed on the side of the detection airbag.

[0012] A further technical improvement of the present invention is that the detection airbag is connected to a communication pipe, and the communication pipe is connected to the sampling cavity through a control valve.

[0013] A further technical improvement of the present invention is that the detection cavity is connected to the inside of the vacuum space through a connecting pipe, and a vacuum pressure detection mechanism is arranged inside the vacuum space.

[0014] A further technical improvement of the present invention is that the vacuum pressure detection mechanism includes a piston sleeve, which is installed in the vacuum space, and a pressure piston is slidably arranged inside the piston sleeve, a matching slide rod is fixed to the end of the pressure piston, and a distance sensor for distance detection with the matching slide rod is fixed on the detection base.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present application provides a first detection mechanism and a second detection mechanism on the side of the door body for detecting the air tightness of the connection part between the door body and the door frame. When in use, the first detection mechanism and the second detection mechanism are used to perform detection respectively. At this time, by installing the first detection mechanism and the second detection mechanism on the door body, it can not only realize the detection function, but also perform secondary anti-leakage sealing on the places with poor air tightness, thereby ensuring the air tightness of the door body and solving the problem that the air tightness of the connection part between the civil air defense door and the door frame in the prior art is difficult to detect.

[0017] 2. The present application controls the position of the detection substrate so that the detection substrate can be rotated so that its plane position is sealed on the door body and the door frame, and the detection cavity is located at the connecting position of the door body and the door frame, and the air tightness test is performed on this position in a targeted manner, thereby ensuring the detection effect.

[0018] 3. The present application sets up multiple detection modes, namely, one passive detection and two active detection modes. The first is passive detection, that is, when the external pressure is high and the air tightness of the door body is poor, the gas reaches the position of the detection airbag through the detection support plate, and the detection airbag is inflated until the detection airbag contacts the position of the contact sensor. At this time, the contact sensor is used to obtain a leakage signal, indicating that the air tightness of the door body of the civil air defense door does not meet the standard, and a corresponding alarm signal is issued;

[0019] The second is active detection, which is divided into two types. The first is to apply special gas from the outside, and the gas reaches the inside of the sampling cavity through the connecting pipe and the control valve, so as to determine whether the sampling cavity can receive the special gas input from the other side of the door body. If it can, it is judged that the air tightness of the door body is poor;

[0020] The second method is to use the vacuum equipment inside the vacuum space to apply a certain extrusion pressure to the vacuum space. At this time, the pressure piston will be squeezed upward until the matching slide rod moves longitudinally, so that the distance metal at the end of the matching slide rod contacts the distance sensor, so as to detect the state of the vacuum space. If the approach speed and approach time of the distance sensor and the distance metal are far from the standard level, it means that there is a possibility of air leakage in the door body connection at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the position of the detection mechanism of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection between the detection mechanism and the door panel of the present invention;

[0024] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A;

[0025] Figure 4 It is a schematic diagram of the internal structure of the detection cavity of the present invention;

[0026] Figure 5 It is a schematic diagram of the vacuum space position of the present invention.

[0027] In the figure: 1. door body; 2. power slot; 3. hinge seat; 4. first detection mechanism; 5. first detection push rod; 6. pushing cylinder; 7. second detection mechanism; 8. power push rod; 9. second rotating push rod; 10. detection cavity; 11. detection base; 12. rotating rod; 13. rotating base; 14. T-shaped sliding block; 15. arc-shaped sliding slot; 16. sliding base; 17. removable top plate; 18. contact sensor; 19. detection support plate; 20. detection airbag; 21. connecting pipe; 22. control valve; 23. sampling cavity; 24. pressure piston; 25. second support plate; 26. connecting pipe; 27. vacuum space; 28. distance sensor; 29. ​​pressure sensing spring; 30. matching slide rod. DETAILED DESCRIPTION

[0028] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0029] See also Figure 1-5 As shown, a leakage-proof civil air defense door with airtight alarm detection comprises a door body 1, wherein the door body 1 is provided with a first detection mechanism 4 and a second detection mechanism 7 for performing airtightness detection on the connection, wherein the first detection mechanism 4 and the second detection mechanism 7 are respectively installed on both sides of the door body 1, for performing airtightness detection on each connection part of the door body 1, and a hinge seat 3 is fixed on the side of the door body 1, wherein the hinge seat 3 is rotatably installed at a fixed position, and when in use, the rotation of the door body 1 is realized by the hinge seat 3, and a connecting rod lock for locking the civil air defense door is also arranged on the door body 1, so that in the present application, the connecting rod lock is used to realize the fixed connection between the door body 1 and the door frame, and then the hinge seat 3 is used to realize the rotation of the door body 1, and the first detection mechanism 4 and the second detection mechanism 7 are used to realize the airtightness detection of the connection part of the door body 1.

[0030] Specifically, in the present application, the first detection mechanism 4 includes a pushing cylinder 6, wherein the pushing cylinder 6 is rotatably installed on the door body 1, and a first detection push rod 5 is rotatably arranged at the output end of the pushing cylinder 6, wherein the first detection push rod 5 and the first detection mechanism 4 are rotatably connected. When in use, the pushing cylinder 6 is started to control the first detection push rod 5 to drive the first detection mechanism 4 to rotate and move its position, so that the first detection mechanism 4 acts on the connecting part of the door body 1 to perform air tightness detection on the connecting part of the door body 1.

[0031] A second rotating push rod 9 is rotatably provided on the second detection mechanism 7, wherein the second rotating push rod 9 is rotatably mounted on a power push rod 8, wherein the power push rod 8 is mounted on the output end of the movable telescopic rod, that is, a power slot 2 is opened on the door body 1, the movable telescopic rod is mounted inside the power slot 2, and the power push rod 8 is slidably connected to the power slot 2, that is, when in use, the position of the power push rod 8 is controlled by starting the movable telescopic rod, so that the power push rod 8 moves in the power slot 2, thereby adjusting the position and rotation state of the second detection mechanism 7, so that the second detection mechanism 7 acts on the connecting part of the door body 1.

[0032] In the present application, the first detection mechanism 4 and the second detection mechanism 7 have the same structure. Taking the first detection mechanism 4 as an example, the first detection mechanism 4 includes a detection base 11, a sliding base 16 is fixed on the door body 1, wherein the sliding base 16 is provided with an arc-shaped sliding groove 15, a T-shaped sliding block 14 is slidably arranged inside the arc-shaped sliding groove 15, a rotating base 13 is fixed on the T-shaped sliding block 14, wherein the rotating base 13 and the detection base 11 are fixedly connected, and a detection cavity 10 for detecting air tightness is provided on the detection base 11. A rotating rod 12 is rotatably arranged on the rotating base 13, and the rotating rod 12 is rotatably installed on the first detection push rod 5 and the second rotating push rod 9 respectively. When in use, when the rotating rod 12 is acted upon by an external force, the detection base 11 moves and rotates to a certain extent under the joint action of the arc-shaped sliding groove 15 and the T-shaped sliding block 14, until the detection base 11 acts on the door body 1 and the door frame respectively. At this time, the detection cavity 10 is located at the connection between the door body 1 and the door frame, and the internal structure of the detection cavity 10 is utilized to detect the air tightness of the door body 1.

[0033] Specifically, a detection cavity 10 is provided on the detection base 11, wherein a detection support plate 19 is fixed on the side of the detection cavity 10, and a plurality of air holes are evenly provided on the detection support plate 19, and a detection airbag 20 is fixed on the side of the detection support plate 19. At the same time, a contact sensor 18 is fixed inside the detection base 11. During use, when the external pressure is large and the air tightness of the door body 1 is poor, the gas passes through the detection support plate 19 to reach the position of the detection airbag 20, and inflates the detection airbag 20 until the detection airbag 20 contacts the position of the contact sensor 18. At this time, a leakage signal is obtained by using the contact sensor 18, and it indicates that the air tightness of the door body 1 of the civil defense door does not meet the standard, and a corresponding alarm signal is issued.

[0034] At the same time, a connecting pipe 21 is connected to the detection airbag 20, and the other end of the connecting pipe 21 is connected to the sampling cavity 23, that is, a control valve 22 is also provided on the connecting pipe 21. When in use, special gas is applied from the outside, and the gas passes through the connecting pipe 21 and the control valve 22 to reach the interior of the sampling cavity 23, so as to determine whether the sampling cavity 23 can receive the special gas input from the other side of the door body 1. If so, it is determined that the air tightness of the door body 1 is poor.

[0035] Furthermore, a detachable top plate 17 is provided on the detection substrate 11 for opening and cleaning the sampling cavity 23 , so that impurities in the sampling cavity 23 can be processed.

[0036] As a further embodiment of the present application, a second support plate 25 is also fixed inside the detection base 11, wherein the cavity between the second support plate 25 and the contact sensor 18 is connected to the detection cavity 10 through a connecting pipe 26, and at this time a vacuum space 27 is arranged between the second support plate 25 and the contact sensor 18, that is, the vacuum space 27 is vacuumed at this time, wherein a piston sleeve is fixedly installed on the second support plate 25, that is, the bottom of the piston sleeve is connected to the vacuum space 27, wherein a pressure piston 24 is slidably arranged inside the piston sleeve, and a mating slide rod 30 is fixed at one end of the pressure piston 24 away from the vacuum space 27, and a pressure sensing spring 29 is arranged on the mating slide rod 30, and the pressure sensing spring 29 is located inside the piston sleeve, and at the same time, a distance metal is arranged on the top of the mating slide rod 30, and a distance sensor 28 for distance detection of the distance metal is fixed inside the detection base 11. When in use, the vacuum equipment inside the vacuum space 27 is used to apply a certain squeezing force to the vacuum space 27, and the pressure piston 24 is squeezed upward until the matching slide rod 30 moves longitudinally, so that the distance metal at the end of the matching slide rod 30 contacts the distance sensor 28, so as to detect the state of the vacuum space 27. If the approach speed and approach time of the distance sensor 28 and the distance metal are far from the standard level, it means that there is a possibility of air leakage at the connection part of the door body 1.

[0037] In order to ensure the air tightness of the detection cavity 10 on the side of the detection substrate 11 , the side rings of all the detection substrates 11 are provided with sealing rubber, so that the gas that the detection cavity 10 can withstand only comes from the connection part of the door body 1 .

[0038] When the present invention is used, the door body 1 is first installed under the action of the hinge seat 3. When the rotating rod 12 is acted upon by an external force, the detection base 11 is moved and rotated to a certain extent under the joint action of the arc-shaped sliding groove 15 and the T-shaped sliding block 14 until the detection base 11 acts on the door body 1 and the door frame respectively. At this time, the detection cavity 10 is located at the connection between the door body 1 and the door frame, and the air tightness of the door body 1 is detected by using the internal structure of the detection cavity 10.

[0039] There are two detection methods during detection. The first is passive detection, that is, when the external pressure is high and the air tightness of the door body 1 is poor, the gas passes through the detection support plate 19 to reach the position of the detection airbag 20, and the detection airbag 20 is inflated until the detection airbag 20 contacts the position of the contact sensor 18. At this time, the contact sensor 18 is used to obtain a leakage signal, indicating that the air tightness of the door body 1 of the civil air defense door does not meet the standard, and a corresponding alarm signal is issued;

[0040] The second is active detection, which is divided into two types. The first is to apply special gas from the outside, and the gas passes through the connecting pipe 21 and the control valve 22 to reach the inside of the sampling cavity 23, so as to determine whether the sampling cavity 23 can receive the special gas input from the other side of the door body 1. If it can, it is determined that the air tightness of the door body 1 is poor;

[0041] The second method is to use the vacuum equipment inside the vacuum space 27 to apply a certain extrusion force to the vacuum space 27. At this time, the pressure piston 24 will be squeezed upward until the matching slide rod 30 moves longitudinally, so that the distance metal at the end of the matching slide rod 30 is in contact with the distance sensor 28, so as to detect the state of the vacuum space 27. If the approach speed and approach time of the distance sensor 28 and the distance metal are far from the standard level, it means that there is a possibility of air leakage at the connection part of the door body 1 at this time.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A leakage-proof civil air defense door with airtight alarm detection, comprising a door body (1), characterized in that: The side edges of the door body (1) are respectively provided with a first detection mechanism (4) and a second detection mechanism (7) for performing air tightness detection on the door body (1) and the door frame.

2. The anti-leakage civil air defense door with airtight alarm detection according to claim 1, characterized in that: The first detection mechanism (4) comprises a detection base (11), the detection base (11) is fixedly mounted on a rotating base (13), a rotating rod (12) is rotatably arranged on the rotating base (13), the rotating rod (12) is fixedly mounted on the output end of a pushing cylinder (6), and the pushing cylinder (6) is rotatably mounted on the door body (1).

3. The anti-leakage civil defense door with airtight alarm detection according to claim 2 is characterized in that: The detection substrate (11) is provided with a detection cavity (10) for detecting air tightness.

4. The anti-leakage civil air defense door with airtight alarm detection according to claim 2, characterized in that: The rotating base (13) is fixedly mounted with a T-shaped sliding block (14), the door body (1) is fixed with a sliding base (16), and the sliding base (16) is provided with an arc-shaped sliding groove (15), and the T-shaped sliding block (14) and the arc-shaped sliding groove (15) are slidably connected.

5. The anti-leakage civil air defense door with airtight alarm detection according to claim 3, characterized in that: A detection support plate (19) is fixed on the side of the detection cavity (10), air holes are provided on the detection support plate (19), a detection airbag (20) is fixed on the side of the detection support plate (19), and a contact sensor (18) for cooperating with the detection airbag (20) is fixed on the side of the detection airbag (20).

6. The anti-leakage civil air defense door with airtight alarm detection according to claim 5, characterized in that: The detection airbag (20) is connected to a communication pipe (21), and the communication pipe (21) is connected to a sampling cavity (23) via a control valve (22).

7. The anti-leakage civil air defense door with airtight alarm detection according to claim 3, characterized in that: The detection cavity (10) is connected to the inside of the vacuum space (27) via a connecting pipe (26), and a vacuum pressure detection mechanism is provided inside the vacuum space (27).

8. The anti-leakage civil air defense door with airtight alarm detection according to claim 7, characterized in that: The vacuum pressure detection mechanism comprises a piston sleeve, the piston sleeve is installed in the vacuum space (27), and a pressure piston (24) is slidably arranged inside the piston sleeve, a matching slide rod (30) is fixed to the end of the pressure piston (24), and a distance sensor (28) for performing distance detection with the matching slide rod (30) is fixed on the detection base (11).

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