Air tightness detection device for civil air defense engineering

Abstract

The utility model provides a civil air defense construction air tightness detection device, which comprises a sealing mechanism, an air tightness detector, a pressure regulating valve, a pressure air source device, a civil air defense wall body, civil air defense sealing equipment and a sealing space, the sealing space exists between the civil air defense wall body and the civil air defense sealing equipment, and the sealing mechanism is used for forming the sealing space with the civil air defense sealing equipment. And the pressure gas source device introduces gas into the sealed space. Compared with the prior art, the sealing device has the advantages that the sealing plate, the bonding layer, the embedded bolt, the vertical rib, the end head, the cross beam, the connector, the fixing plate, the end plate, the track, the screw rod, the hand wheel, the top head, the rotating arm, the pressing head and the guide wheel are arranged in a matched mode, the flexible bonding layer is designed between the sealing plate and the civil air defense wall body, and the bonding layer has elasticity; the bonding layer can well fill the uneven part of the surface of the civil air defense wall body, so that the sealing space is completely sealed, and the air tightness detection data of the civil air defense sealing equipment is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense engineering, in particular to an air tightness detection device for civil air defense engineering. Background Art

[0002] Air-defense enclosed equipment refers to protective equipment installed on the walls of civil air defense projects at personnel and vehicle entrances and exits, ventilation holes, etc. Air-defense enclosed equipment has a protective function and can resist shock waves. It also has airtight performance and needs to be airtight when fully closed to prevent biochemical gas attacks. Therefore, after the main construction of the civil air defense project is completed and the installation and commissioning of the air-defense enclosed equipment is completed, it is necessary to conduct airtightness testing on the air-defense enclosed equipment.

[0003] The air tightness detection device in the related technology needs to form a sealed space between a sealing plate and the civil air defense enclosed equipment. The sealing plate is in contact with the wall of the civil air defense project during installation. However, since the surface of the wall of the civil air defense project may be uneven, it is easy for the sealing plate and the wall of the civil air defense project to be incompletely sealed, resulting in inaccurate air tightness detection data of the civil air defense enclosed equipment. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to propose an air tightness detection device for civil air defense projects to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides an air tightness detection device for civil air defense engineering, comprising a sealing mechanism, an air tightness detector, a pressure regulating valve, a pressure gas source device, a civil air defense wall, a civil air defense closed device, and a sealed space, wherein a sealed space exists between the civil air defense wall and the civil air defense closed device, the sealing mechanism is used to form a sealed space with the civil air defense closed device, the pressure gas source device introduces gas into the sealed space, the pressure regulating valve is used to adjust the pressure in the sealed space, and the air tightness detector detects the air tightness of the sealed space;

[0007] The sealing mechanism comprises a sealing plate fixed on the surface of the civil air defense wall, and an adhesive layer is provided between the sealing plate and the surface of the civil air defense wall;

[0008] The sealing plate is connected with an air inlet pipe and a pressure measuring pipe;

[0009] The sealing plate side of the civil air defense wall is connected with vertical bars and end caps through embedded bolts and nuts. The embedded bolts are inserted into the vertical bars and end caps. The ends of the embedded bolts are threadedly connected with nuts. The top ends of the vertical bars are fixedly connected with end caps.

[0010] A horizontal beam is fixedly connected between the vertical ribs, a plurality of joints are fixedly connected to one side of the vertical ribs and the horizontal beam, a fixed plate is fixedly connected to the surface of the joint, and an end plate is fixedly connected to the end of the fixed plate;

[0011] The surface of the fixed plate is fixedly connected to a track, the end plate is threadedly connected to a screw, the end of the screw is fixedly connected to a hand wheel, one end of the screw is movably connected to a head, and the head is movably connected to the inner side of the track;

[0012] The end of the fixed plate surface is movably connected with a rotating arm, the end of the rotating arm is fixedly connected with a pressure head, the pressure head is tightly pressed on the sealing plate surface, the other end of the rotating arm is movably connected with a guide wheel, and the guide wheel is movably connected to the inclined surface of the top head.

[0013] Preferably, in any of the above schemes, the sealing plate is made of wood fiberboard, and the adhesive layer is made of silicone rubber.

[0014] Adopting the above technical scheme: The design significance of this device is to improve the sealing plate and its surrounding structure so that the sealing performance of the sealing plate is better, so that the sealing space between the sealing plate and the civil air defense closed equipment forms a fully sealed area, and the air tightness detection data of the civil air defense closed equipment is accurate.

[0015] Preferably, in any of the above schemes, the cross-sectional shape of the vertical rib is L-shaped, and the vertical rib is welded to the cross beam.

[0016] Preferably, any of the above schemes is that the vertical ribs, the cross beams and the corresponding joints are welded, and the fixing plate is welded to the joint surface.

[0017] Adopting the above technical scheme: the core structure of the device is: sealing plate, bonding layer, embedded bolts, vertical ribs, end caps, cross beams, joints, fixed plates, end plates, rails, screws, hand wheels, jacks, rotating arms, pressure heads, and guide wheels.

[0018] The core advantage of this device is that a flexible adhesive layer is designed between the sealing plate and the civil air defense wall. The adhesive layer is elastic. Since the sealing plate is pressed tightly, the adhesive layer can better fill the unevenness of the surface of the civil air defense wall, making the sealed space completely sealed.

[0019] On the side of the civil air defense wall, the vertical reinforcement and the end caps are connected by embedded bolts and nuts, the vertical reinforcement and the end caps are welded, the vertical reinforcement is connected to the cross beam, and one side of the vertical reinforcement and the cross beam is fixedly connected with several joints, and the joints are used to install the pressing mechanism, which is composed of a fixed plate, an end plate, a track, a screw, a hand wheel, a jack, a rotating arm, a pressure head, and a guide wheel. When the hand wheel is rotated to make the jack move along the track, the jack and the guide wheel are movably connected, and according to the principle of leverage, the end of the rotating arm is tilted to make the pressure head press tightly on the edge of the sealing plate. There are several pressure heads designed, and the pressing force of the pressure head on the sealing plate is large. The sealing plate is pressed tightly, so that the bonding layer can better fill the unevenness on the surface of the civil air defense wall, so that the sealing space is completely sealed.

[0020] Preferably, any of the above schemes has the joints on the vertical ribs and the horizontal beams facing in different directions.

[0021] Preferably, in any of the above schemes, the screw is perpendicular to the end plate, and the pressing head presses on the edge of the sealing plate.

[0022] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0023] The air tightness detection device for civil air defense projects is designed with a flexible adhesive layer between the sealing plate and the civil air defense wall through the coordinated arrangement of a sealing plate, an adhesive layer, embedded bolts, vertical ribs, ends, beams, joints, fixed plates, end plates, tracks, screws, hand wheels, jacks, rotating arms, pressure heads, and guide wheels. The adhesive layer has elasticity. As the sealing plate is tightly pressed, the adhesive layer can better fill the unevenness of the surface of the civil air defense wall, so that the sealed space is completely sealed.

[0024] On the side of the civil air defense wall, the vertical reinforcement and the end are connected by embedded bolts and nuts, the vertical reinforcement and the end are welded, the vertical reinforcement is connected to the cross beam, and one side of the vertical reinforcement and the cross beam is fixedly connected with a number of joints, on which a pressing mechanism is installed, which is composed of a fixed plate, an end plate, a track, a screw, a hand wheel, a jack, a rotating arm, a pressure head, and a guide wheel. When the hand wheel is rotated to make the jack move along the track, the jack and the guide wheel are movably connected, and according to the principle of leverage, the end of the rotating arm is tilted to make the pressure head press tightly on the edge of the sealing plate. There are several pressure heads designed, and the pressure head has a large pressing force on the sealing plate. The sealing plate is pressed tightly, so that the bonding layer can better fill the unevenness of the surface of the civil air defense wall, so that the sealing space is completely sealed;

[0025] The sealing performance of the sealing plate is improved, and the sealing space between the sealing plate and the civil air defense closed equipment forms a fully sealed area, so that the air tightness test data of the civil air defense closed equipment is accurate.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a structural schematic diagram of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the joint of the utility model;

[0030] Figure 3 It is a structural schematic diagram of a single pressing mechanism of the utility model;

[0031] Figure 4 It is a schematic diagram of the structure inside the civil air defense wall of the utility model.

[0032] In the figure: 1-civil air defense wall, 2-civil air defense enclosed equipment, 3-sealed space, 4-sealing plate, 5-adhesive layer, 6-inlet pipe, 7-pressure measuring tube, 8-embedded bolts, 9-vertical reinforcement, 10-end, 11-cross beam, 12-joint, 13-fixed plate, 14-end plate, 15-track, 16-screw, 17-handwheel, 18-head, 19-swivel arm, 20-pressure head, 21-guide wheel. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figure 1-4As shown, the air tightness detection device for civil air defense engineering includes a sealing mechanism, an air tightness detector, a pressure regulating valve, a pressure gas source device, a civil air defense wall 1, a civil air defense closed device 2, and a sealed space 3. There is a sealed space 3 between the civil air defense wall 1 and the civil air defense closed device 2. The sealing mechanism is used to form a sealed space 3 with the civil air defense closed device 2. The pressure gas source device introduces gas into the sealed space 3. The pressure regulating valve is used to adjust the pressure in the sealed space 3. The air tightness detector detects the air tightness of the sealed space 3.

[0036] The sealing mechanism comprises a sealing plate 4 fixed on the surface of the civil air defense wall 1, and an adhesive layer 5 is provided between the sealing plate 4 and the surface of the civil air defense wall 1;

[0037] The sealing plate 4 is connected with an air inlet pipe 6 and a pressure measuring pipe 7;

[0038] The sealing plate 4 side of the civil air defense wall 1 is connected with vertical ribs 9 and end caps 10 through embedded bolts 8 and nuts. The embedded bolts 8 are inserted into the vertical ribs 9 and the end caps 10. The ends of the embedded bolts 8 are threadedly connected with nuts, and the tops of the vertical ribs 9 are fixedly connected with the end caps 10.

[0039] A cross beam 11 is fixedly connected between the vertical ribs 9, a plurality of joints 12 are fixedly connected to one side of the vertical ribs 9 and the cross beam 11, a fixed plate 13 is fixedly connected to the surface of the joint 12, and an end plate 14 is fixedly connected to the end of the fixed plate 13;

[0040] A track 15 is fixedly connected to the surface of the fixed plate 13, a screw 16 is threadedly connected to the end plate 14, a hand wheel 17 is fixedly connected to the end of the screw 16, and a head 18 is movably connected to one end of the screw 16, and the head 18 is movably connected to the inner side of the track 15;

[0041] The end of the surface of the fixed plate 13 is movably connected to a rotating arm 19, and the end of the rotating arm 19 is fixedly connected to a pressing head 20, which is tightly pressed against the surface of the sealing plate 4. The other end of the rotating arm 19 is movably connected to a guide wheel 21, and the guide wheel 21 is movably connected to the inclined surface of the top head 18.

[0042] Embodiment 1: The material of the sealing plate 4 is wood fiberboard, and the material of the bonding layer 5 is silicone rubber. The design significance of this device is to improve the sealing plate 4 and its surrounding structure, so that the sealing performance of the sealing plate 4 is better, so that the sealing space 3 between the sealing plate 4 and the air-defense airtight equipment 2 forms a fully sealed area, and the airtightness detection data of the air-defense airtight equipment is accurate.

[0043] Embodiment 2: The cross-sectional shape of the vertical rib 9 is L-shaped, and the vertical rib 9 is welded to the cross beam 11. The vertical rib 9, the cross beam 11 and the corresponding joints 12 are all welded, and the fixed plate 13 is welded to the surface of the joint 12. The core structure of this device is: sealing plate 4, bonding layer 5, embedded bolts 8, vertical rib 9, end 10, cross beam 11, joint 12, fixed plate 13, end plate 14, track 15, screw 16, hand wheel 17, top 18, rotating arm 19, pressure head 20, guide wheel 21. The joints 12 on the vertical rib 9 and cross beam 11 are oriented in different directions. The screw 16 is perpendicular to the end plate 14, and the pressure head 20 is pressed on the edge of the sealing plate 4.

[0044] The working principle of the utility model is as follows:

[0045] On the side of the civil air defense wall 1, the vertical ribs 9 and the end caps 10 are connected by embedded bolts 8 and nuts, the vertical ribs 9 and the end caps 10 are welded, the vertical ribs 9 are connected to the cross beams 11, and one side of the vertical ribs 9 and the cross beams 11 is fixedly connected with a plurality of joints 12, and the joints 12 are used to install a pressing mechanism, and the hand wheel 17 is rotated to make the top head 18 move along the track 15, and the top head 18 is movably connected with the guide wheel 21, and according to the principle of the lever, the end of the rotating arm 19 is tilted to make the pressure head 20 press tightly on the edge of the sealing plate 4, and there are several pressure heads 20 designed, and the pressure head 20 has a large pressing force on the sealing plate 4, and the sealing plate 4 is pressed, so that the bonding layer 5 can better fill the unevenness of the surface of the civil air defense wall 1, so that the sealing space 3 is completely sealed;

[0046] The inspector connects the pressure gas source device and the pressure regulating valve to the air inlet pipe. The pressure gas source device can be used to inflate air into the sealed space 3, so that the sealed space 3 forms an overpressure environment. The airtightness detection device and the pressure measuring tube 7 are then used to record the pressure change of the sealed space 3 within a certain period of time. Finally, the pressure change data of the sealed space 3 within a certain period of time can be obtained, and the airtightness of the civil air defense closed equipment 2 can be judged using this data.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] The air tightness detection device for civil air defense engineering is provided with a sealing plate 4, an adhesive layer 5, embedded bolts 8, vertical ribs 9, end caps 10, cross beams 11, joints 12, fixing plates 13, end plates 14, rails 15, screws 16, hand wheels 17, top caps 18, rotating arms 19, pressure heads 20, and guide wheels 21. A flexible adhesive layer 5 is designed between the sealing plate 4 and the civil air defense wall 1. The adhesive layer 5 is elastic. Since the sealing plate 4 is tightly pressed, the adhesive layer 5 can better fill the unevenness of the surface of the civil air defense wall 1, so that the sealing space 3 is completely sealed.

[0049] The vertical reinforcement 9 and the end 10 are connected by embedded bolts 8 and nuts on the side of the civil air defense wall 1. The vertical reinforcement 9 is welded to the end 10, and the cross beam 11 is connected between the vertical reinforcement 9. A plurality of joints 12 are fixedly connected to one side of the vertical reinforcement 9 and the cross beam 11. The joint 12 is used to install a pressing mechanism, which is composed of a fixed plate 13, an end plate 14, a track 15, a screw 16, a hand wheel 17, a top head 18, a rotating arm 19, a pressure head 20, and a guide wheel 21. When the hand wheel 17 is rotated to make the top head 18 move along the track 15, the top head 18 is movably connected to the guide wheel 21. According to the principle of leverage, the end of the rotating arm 19 is tilted so that the pressure head 20 is pressed tightly against the edge of the sealing plate 4. There are several pressure heads 20 designed, and the pressing force of the pressure head 20 on the sealing plate 4 is large. The sealing plate 4 is pressed, so that the bonding layer 5 can better fill the unevenness of the surface of the civil air defense wall 1, so that the sealing space 3 is completely sealed;

[0050] The sealing performance of the sealing plate 4 is improved, and the sealing space 3 between the sealing plate 4 and the civil air defense closed equipment 2 forms a fully sealed area, so that the air tightness detection data of the civil air defense closed equipment is accurate.

Claims

1. A device for detecting air tightness of civil air defense projects, characterized in that: The invention comprises a sealing mechanism, an air tightness detector, a pressure regulating valve, a pressure gas source device, a civil air defense wall (1), a civil air defense closed device (2), and a sealed space (3); a sealed space (3) is provided between the civil air defense wall (1) and the civil air defense closed device (2); the sealing mechanism is used to form a sealed space (3) with the civil air defense closed device (2); the pressure gas source device introduces gas into the sealed space (3); the pressure regulating valve is used to adjust the pressure in the sealed space (3); and the air tightness detector detects the air tightness of the sealed space (3); The sealing mechanism comprises a sealing plate (4) fixed on the surface of the civil air defence wall (1), and an adhesive layer (5) is provided between the sealing plate (4) and the surface of the civil air defence wall (1); The sealing plate (4) is connected to an air inlet pipe (6) and a pressure measuring pipe (7); The sealing plate (4) side of the civil air defense wall (1) is connected with vertical ribs (9) and an end cap (10) through embedded bolts (8) and nuts, the embedded bolts (8) are plugged into the vertical ribs (9) and the end cap (10), the end of the embedded bolts (8) is threadedly connected with a nut, and the top of the vertical ribs (9) is fixedly connected with the end cap (10); A cross beam (11) is fixedly connected between the vertical ribs (9); a plurality of joints (12) are fixedly connected to one side of the vertical ribs (9) and the cross beam (11); a fixed plate (13) is fixedly connected to the surface of the joint (12); and an end plate (14) is fixedly connected to the end of the fixed plate (13); The surface of the fixed plate (13) is fixedly connected with a track (15), the end plate (14) is threadedly connected with a screw rod (16), the end of the screw rod (16) is fixedly connected with a hand wheel (17), one end of the screw rod (16) is movably connected with a head (18), and the head (18) is movably connected to the inner side of the track (15); The end of the surface of the fixed plate (13) is movably connected to a rotating arm (19), and the end of the rotating arm (19) is fixedly connected to a pressure head (20), and the pressure head (20) is tightly pressed against the surface of the sealing plate (4). The other end of the rotating arm (19) is movably connected to a guide wheel (21), and the guide wheel (21) is movably connected to the inclined surface of the top head (18).

2. The air tightness detection device for civil air defense engineering according to claim 1, characterized in that: The sealing plate (4) is made of wood fiberboard, and the bonding layer (5) is made of organic silicon rubber.

3. The air tightness detection device for civil air defense engineering according to claim 2, characterized in that: The cross-sectional shape of the vertical rib (9) is L-shaped, and the vertical rib (9) is welded to the cross beam (11).

4. The air tightness detection device for civil air defense engineering according to claim 3, characterized in that: The vertical ribs (9), the cross beams (11) and the corresponding joints (12) are all welded, and the fixing plates (13) are welded to the surfaces of the joints (12).

5. The air tightness detection device for civil air defense engineering according to claim 4, characterized in that: The joints (12) on the vertical ribs (9) and the cross beams (11) are oriented in different directions.

6. The air tightness detection device for civil air defense engineering according to claim 5, characterized in that: The screw rod (16) is perpendicular to the end plate (14), and the pressing head (20) is pressed on the edge of the sealing plate (4).

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