Civil air defense door air tightness detection equipment

Abstract

The utility model relates to the technical field of civil air defense doors, in particular to civil air defense door airtightness detection equipment which comprises a bottom plate, a water pool is fixed to the center of the upper surface of the bottom plate, supporting rods are fixed to the periphery of the upper surface of the bottom plate, a shell is fixed to the upper surfaces of the four supporting rods, and a moving mechanism is arranged in the shell. And a box body is arranged on the moving mechanism. According to the air tightness detection equipment for the civil defense door, an air cylinder drives a fixing plate and a first toothed plate to move together, a straight gear and a first rotating rod are made to rotate together, a second toothed plate is driven to move in the opposite direction, the first toothed plate and the second toothed plate move to drive a connecting plate, a vertical plate, a transverse plate and a bin body to move together, and the civil defense door is placed on a plurality of rod sleeves; the first motor drives the first threaded rod to rotate and drives the rod sleeve and the civil air defense door to move together, so that the civil air defense door abuts against the lower surface of the sealing bin, the fixing effect on the civil air defense door is good, operation is easy, and meanwhile the sealing performance of the civil air defense door is conveniently measured.

Description

Technical Field

[0001] The present application relates to the technical field of civil air defense doors, and specifically to an air tightness detection device for civil air defense doors. Background Art

[0002] Civil defense doors are the doors at the entrances and exits of people's defense projects. There are distinct classifications of civil defense doors, including ordinary single-leaf and double-leaf protective closed doors and closed doors, movable threshold single-leaf and double-leaf protective closed doors and closed doors, and other civil defense equipment. After the production of civil defense doors is completed, in order to ensure their air tightness, they need to be tested for air tightness.

[0003] For example, a Chinese patent (publication number: CN218628848U) discloses an air-tightness detection mechanism for a civil air defense door, comprising an outer box, support rods are fixed on all sides of the bottom of the outer box, a support plate is fixed on the bottom between the four support rods, a civil air defense door body is arranged inside the outer box, a lifting mechanism is arranged on the support plate, and a detection mechanism is arranged on the lifting mechanism; the detection mechanism comprises a detection box arranged above the lifting mechanism, a sponge pad is placed on the bottom wall of the inner cavity of the detection box, a detection cavity is arranged inside the outer box, brackets are fixed on all sides of the outer surface of the detection box, and studs are threadedly connected to the top of the brackets. The air-tightness detection mechanism for a civil air defense door is achieved by providing a detection mechanism inside the outer box, and the outer box is filled with black pigment detection water. After the civil air defense door body is installed on the detection mechanism, the detection mechanism is arranged in the outer box. When a leak occurs on the civil air defense door body, the position of the leak of the civil air defense door body is determined by judging the position of the black pigment detection water.

[0004] The above-mentioned civil defense door air tightness detection mechanism still has certain shortcomings. By placing the civil defense door body on the detection box and setting a sealing gasket to improve the connection sealing, and then rotating the studs, the pressure plate presses the civil defense door body and fixes it stably. However, during the fixing process, since multiple studs need to be rotated to press and fix the civil defense door body, it is not only time-consuming and labor-intensive, but also slow in installation and disassembly, which affects the detection efficiency and prolongs the working time. Therefore, the present application proposes a civil defense door air tightness detection device to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides an air tightness detection device for civil air defense doors, which has the advantages of easy fixation, etc., and solves the problem of inconvenient fixation of the existing air tightness detection equipment for civil air defense doors.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an air tightness detection device for a civil air defense door, comprising a bottom plate, a water pool is fixed at the center of the upper surface of the bottom plate, support rods are fixed around the upper surface of the bottom plate, a shell is fixed on the upper surface of four support rods, a moving mechanism is provided inside the shell, a box is provided on the moving mechanism, a sealing chamber is fixed on the lower surface of the box, and a fixing mechanism for fixing the civil air defense door is provided inside the box;

[0007] The fixing mechanism includes a moving component and a fixing component, and the moving component includes a cylinder fixed to the right side of the inner cavity of the box body, a fixing plate fixed to the output end of the cylinder, a first tooth plate fixed to the left side of the fixing plate, a first rotating rod rotatably connected between the front and rear sides of the inner cavity of the box body through a bearing seat, a spur gear fixed to the outer surface of the first rotating rod and meshed with the first tooth plate, a second tooth plate meshed with the outer surface of the spur gear, two connecting plates fixed to the left side of the first tooth plate and to the right side of the second tooth plate, a vertical plate fixed to the opposite side of the two connecting plates, and a horizontal plate fixed to the opposite side of the two vertical plates.

[0008] By adopting the above technical solution, the box, the sealed chamber and the civil air defense door are moved into the water through the moving mechanism, which facilitates the detection of the sealing of the civil air defense door, and the civil air defense door is fixed to the lower surface of the sealed chamber through the fixing mechanism.

[0009] Furthermore, the fixing assembly includes two bin bodies fixed to the upper surface of the horizontal plate, a first motor fixed to the lower surface of the bin body cavity, a first threaded rod fixed to the output shaft of the first motor and passing through and extending to the top of the bin body, and a rod sleeve threadedly connected to the outer surface of the first threaded rod.

[0010] By adopting the above technical solution, the first motor drives the first threaded rod to rotate, thereby driving the rod sleeve to move.

[0011] Furthermore, a T-shaped block is fixed on the opposite side of the first tooth plate and the second tooth plate, and T-shaped grooves are provided on the upper and lower sides of the inner cavity of the box body, and the T-shaped block is slidably connected to the inside of the T-shaped groove.

[0012] By adopting the above technical solution, the stability of the first tooth plate and the second tooth plate during movement is increased.

[0013] Furthermore, sliding holes are provided on both the left and right sides of the box body, and the connecting plate is slidably connected to the inside of the sliding holes.

[0014] The above technical solution is adopted to facilitate the connection plate to drive the vertical plate to move.

[0015] Furthermore, a circular hole is opened on the upper surface of the warehouse body, a sealing ring is fixed inside the circular hole, and the first threaded rod is rotatably connected to the inside of the sealing ring through a bearing.

[0016] By adopting the above technical solution, the sealing performance is increased to prevent the water in the pool from damaging the first motor.

[0017] Furthermore, a limiting block is fixed on one side opposite to the two rod sleeves, a limiting rod is fixed on the upper surface of the warehouse body, and the limiting block is slidably connected to the outer surface of the limiting rod.

[0018] The above technical solution is adopted to increase the stability of the rod sleeve when it moves.

[0019] Furthermore, the moving mechanism includes a dual-axis motor fixed to the lower surface of the inner cavity of the shell, a second rotating rod fixed to the output shaft of the dual-axis motor, a first bevel gear fixed to the outer surface of the second rotating rod, a second bevel gear meshed with the outer surface of the first bevel gear, a second threaded rod fixed to the lower surface of the second bevel gear and penetrating and extending to the bottom of the shell, and a threaded sleeve threadedly connected to the outer surface of the second threaded rod.

[0020] By adopting the above technical solution, the box, the sealed chamber and the civil air defense door are moved into the water through the moving mechanism, so as to facilitate the detection of the sealing of the civil air defense door.

[0021] Furthermore, the box body is fixed to the lower surfaces of the two threaded sleeves, and the opposite sides of the two second rotating rods are rotatably connected to the left and right sides of the inner cavity of the shell through bearing seats.

[0022] By adopting the above technical solution, the two second threaded rods rotate simultaneously, thereby driving the two threaded sleeves and the box body to move together.

[0023] Furthermore, a mounting plate is fixed between the two threaded sleeves, a plurality of mounting rods are fixed to the lower surface of the shell, and the mounting plate is slidably connected to the outer surfaces of the mounting rods.

[0024] By adopting the above technical solution, the stability of the threaded sleeve when moving is increased, and the threaded sleeve is prevented from rotating along with the second threaded rod.

[0025] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0026] 1. The air tightness detection equipment for civil air defense doors, the cylinder drives the fixed plate and the first tooth plate to move together, makes the spur gear and the first rotating rod rotate together, drives the second tooth plate to move in the opposite direction, and drives the connecting plate, the vertical plate, the horizontal plate and the bin body to move together through the movement of the first tooth plate and the second tooth plate, places the civil air defense door on multiple rod sleeves, and the first motor drives the first threaded rod to rotate, drives the rod sleeve and the civil air defense door to move together, makes the civil air defense door abut against the lower surface of the sealing bin, has good fixing effect on the civil air defense door, is simple to operate, and is convenient for measuring the sealing of the civil air defense door.

[0027] 2. The air tightness testing equipment for civil air defense doors uses a dual-axis motor to drive the second rotating rod and the first bevel gear to rotate together, drives the second bevel gear and the second threaded rod to rotate together, drives the threaded sleeve, the box body, the sealing chamber and the civil air defense door to move into the water pool together, so as to facilitate the inspection of the air tightness of the civil air defense door. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of this application;

[0029] Figure 2 This is a three-dimensional appearance diagram of this application;

[0030] Figure 3 This is a schematic diagram of the structure of the fixing mechanism of this application;

[0031] Figure 4 This is a schematic diagram of the structure of the bin body, the first motor, the first threaded rod and the rod sleeve of the present application;

[0032] Figure 5 This is a structural diagram of the mobile mechanism of this application.

[0033] In the figure: 1. bottom plate; 2. fixing mechanism; 201. cylinder; 202. fixing plate; 203. first tooth plate; 204. spur gear; 205. first rotating rod; 206. second tooth plate; 207. connecting plate; 208. vertical plate; 209. horizontal plate; 210. warehouse body; 211. first motor; 212. first threaded rod; 213. rod sleeve; 3. box body; 4. moving mechanism; 401. double-axis motor; 402. second rotating rod; 403. first bevel gear; 404. second bevel gear; 405. second threaded rod; 406. threaded sleeve; 5. housing; 6. sealing warehouse; 7. support rod; 8. water tank. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] See also Figure 1-2In this embodiment, a civil air defense door air tightness detection device includes a base plate 1, a water pool 8 is fixed at the center of the upper surface of the base plate 1, the interior of the water pool 8 is filled with water, support rods 7 are fixed on all sides of the upper surface of the base plate 1, and a shell 5 is fixed on the upper surfaces of the four support rods 7. A moving mechanism 4 is provided inside the shell 5, and a box body 3 is provided on the moving mechanism 4. A sealing chamber 6 is fixed on the lower surface of the box body 3, and a fixing mechanism 2 for fixing the civil air defense door is provided inside the box body 3. The moving mechanism 4 drives the box body 3, the sealing chamber 6 and the civil air defense door to move into the water, which is convenient for detecting the sealing of the civil air defense door, and the civil air defense door is fixed to the lower surface of the sealing chamber 6 by the fixing mechanism 2.

[0036] Among them, a sponge is fixed to the inner cavity wall of the sealing chamber 6, through which the sealing condition of the civil air defense door around can be known. An air outlet is provided on the right side of the sealing chamber 6 to facilitate the vacuum pump to extract the air inside the sealing chamber 6.

[0037] See also Figure 3-4 In order to facilitate the fixing of the civil defense door, the fixing mechanism 2 in this embodiment includes a moving component and a fixing component. The moving component includes a cylinder 201 fixed to the right side of the inner cavity of the box body 3, a fixing plate 202 fixed to the output end of the cylinder 201, a first tooth plate 203 fixed to the left side of the fixing plate 202, a first rotating rod 205 rotatably connected between the front and rear sides of the inner cavity of the box body 3 through a bearing seat, a spur gear 204 fixed to the outer surface of the first rotating rod 205 and meshing with the first tooth plate 203, a second tooth plate 206 meshing with the outer surface of the spur gear 204, and a fixing plate 208 fixed to the outer surface of the first rotating rod 208. The two connecting plates 207 fixed on the left side of the first tooth plate 203 and the right side of the second tooth plate 206, the vertical plate 208 fixed on the opposite side of the two connecting plates 207, and the horizontal plate 209 fixed on the opposite side of the two vertical plates 208, the cylinder 201 drives the fixed plate 202 and the first tooth plate 203 to move together, so that the spur gear 204 and the first rotating rod 205 rotate together, driving the second tooth plate 206 to move in the opposite direction, and through the movement of the first tooth plate 203 and the second tooth plate 206, driving the connecting plate 207, the vertical plate 208 and the horizontal plate 209 to move together.

[0038] The fixing assembly includes two bin bodies 210 fixed to the upper surface of the horizontal plate 209, a first motor 211 fixed to the lower surface of the inner cavity of the bin body 210, a first threaded rod 212 fixed to the output shaft of the first motor 211 and penetrating and extending to the top of the bin body 210, and a rod sleeve 213 threadedly connected to the outer surface of the first threaded rod 212. The first motor 211 drives the first threaded rod 212 to rotate, thereby driving the rod sleeve 213 to move.

[0039] Among them, T-shaped blocks are fixed on the opposite sides of the first tooth plate 203 and the second tooth plate 206, and T-shaped grooves are provided on the upper and lower sides of the inner cavity of the box body 3. The T-shaped blocks are slidably connected to the inside of the T-shaped grooves to increase the stability of the first tooth plate 203 and the second tooth plate 206 when moving. Sliding holes are provided on the left and right sides of the box body 3, and the connecting plate 207 is slidably connected to the inside of the sliding holes, so that the connecting plate 207 can drive the vertical plate 208 to move.

[0040] In addition, a circular hole is opened on the upper surface of the warehouse body 210, and a sealing ring is fixed inside the circular hole. The first threaded rod 212 is rotatably connected to the inside of the sealing ring through a bearing to increase the sealing performance and prevent the water in the pool 8 from damaging the first motor 211. Limiting blocks are fixed on the opposite sides of the two rod sleeves 213, and a limiting rod is fixed on the upper surface of the warehouse body 210. The limiting block is slidably connected to the outer surface of the limiting rod to increase the stability of the rod sleeve 213 when moving.

[0041] In the fixing mechanism 2 of this embodiment, the cylinder 201 drives the fixing plate 202 and the first tooth plate 203 to move together, so that the spur gear 204 and the first rotating rod 205 rotate together, driving the second tooth plate 206 to move in the opposite direction, and through the movement of the first tooth plate 203 and the second tooth plate 206, driving the connecting plate 207, the vertical plate 208, the horizontal plate 209 and the warehouse body 210 to move together, and placing the civil defense door on multiple rod sleeves 213. The first motor 211 drives the first threaded rod 212 to rotate, driving the rod sleeve 213 and the civil defense door to move together, so that the civil defense door abuts against the lower surface of the sealing warehouse 6, which has a good fixing effect on the civil defense door and is simple to operate. At the same time, it is convenient to measure the sealing of the civil defense door.

[0042] See also Figure 5 In order to facilitate the movement of the sealing chamber 6, the moving mechanism 4 in this embodiment includes a dual-axis motor 401 fixed to the lower surface of the inner cavity of the shell 5, a second rotating rod 402 fixed to the output shaft of the dual-axis motor 401, a first bevel gear 403 fixed to the outer surface of the second rotating rod 402, a second bevel gear 404 meshed with the outer surface of the first bevel gear 403, a second threaded rod 405 fixed to the lower surface of the second bevel gear 404 and penetrating and extending to the bottom of the shell 5, and a threaded sleeve 406 threadedly connected to the outer surface of the second threaded rod 405. The dual-axis motor 401 drives the second rotating rod 402 and the first bevel gear 403 to rotate together, and drives the second bevel gear 404 and the second threaded rod 405 to rotate together.

[0043] Among them, the box body 3 is fixed to the lower surface of the two threaded sleeves 406, and the two second threaded rods 405 rotate simultaneously, driving the two threaded sleeves 406 and the box body 3 to move together. The opposite sides of the two second rotating rods 402 are respectively connected to the left and right sides of the inner cavity of the shell 5 through the bearing seats, thereby increasing the stability of the second rotating rods 402 during rotation.

[0044] In addition, a mounting plate is fixed between the two threaded sleeves 406, and a plurality of mounting rods are fixed to the lower surface of the shell 5. The mounting plate is slidably connected to the outer surface of the mounting rod to increase the stability of the threaded sleeve 406 when it moves and prevent the threaded sleeve 406 from rotating with the second threaded rod 405.

[0045] The moving mechanism 4 in this embodiment, the dual-axis motor 401 drives the second rotating rod 402 and the first bevel gear 403 to rotate together, drives the second bevel gear 404 and the second threaded rod 405 to rotate together, drives the threaded sleeve 406, the box body 3, the sealing chamber 6 and the civil defense door to move together into the water pool 8, so as to facilitate the inspection of the air tightness of the civil defense door.

[0046] The working principle of the above embodiment is:

[0047] (1) When the civil air defense door needs to be fixed, the cylinder 201 is started, and the cylinder 201 drives the fixing plate 202 and the first tooth plate 203 to move together. When the first tooth plate 203 moves, it drives the spur gear 204 and the first rotating rod 205 to rotate together. The spur gear 204 rotates, driving the second tooth plate 206 to move in the opposite direction. The first tooth plate 203 and the second tooth plate 206 move in the opposite direction at the same time, driving the connecting plate 207 to move. The connecting plate 207 drives the horizontal plate 208 through the vertical plate 209 moves together, and drives the warehouse body 210 to move together. When the warehouse body 210 moves to a suitable position, the civil air defense door is placed on the upper surface of multiple rod sleeves 213, and the first motor 211 is started. The first motor 211 will drive the first threaded rod 212 to rotate, and the rod sleeve 213 is driven to move by the first threaded rod 212, driving the civil air defense door to move together, so that the civil air defense door is abutted against the lower surface of the sealing warehouse 6, which has a good fixing effect on the civil air defense door and is simple to operate. At the same time, it is convenient to measure the sealing of the civil air defense door.

[0048] (2) After the civil air defense door is fixed, start the dual-axis motor 401, which drives the second rotating rod 402 to rotate, and drives the first bevel gear 403 to rotate together through the second rotating rod 402, and drives the second bevel gear 404 to rotate together through the first bevel gear 403, and drives the second threaded rod 405 to rotate together through the second bevel gear 404. When the second threaded rod 405 rotates, it will drive the threaded sleeve 406 to move together. When the threaded sleeve 406 moves, it will drive the mounting plate to slide on the outer surface of the mounting rod, thereby increasing the stability of the threaded sleeve 406 when it moves. When the threaded sleeve 406 moves, it will drive the box body 3, the sealing chamber 6 and the civil air defense door to move into the water pool 8, so as to facilitate the inspection of the air tightness of the civil air defense door.

Claims

1. An air tightness detection device for a civil air defense door, comprising a bottom plate (1), characterized in that: A water pool (8) is fixed at the center of the upper surface of the bottom plate (1), support rods (7) are fixed around the upper surface of the bottom plate (1), a shell (5) is fixed on the upper surfaces of the four support rods (7), a moving mechanism (4) is provided inside the shell (5), a box (3) is provided on the moving mechanism (4), a sealing chamber (6) is fixed on the lower surface of the box (3), and a fixing mechanism (2) for fixing the civil air defense door is provided inside the box (3); The fixing mechanism (2) comprises a moving component and a fixing component, wherein the moving component comprises a cylinder (201) fixed to the right side of the inner cavity of the box body (3), a fixing plate (202) fixed to the output end of the cylinder (201), a first tooth plate (203) fixed to the left side of the fixing plate (202), a first rotating rod (205) rotatably connected between the front and rear sides of the inner cavity of the box body (3) via a bearing seat, a spur gear (204) fixed to the outer surface of the first rotating rod (205) and meshing with the first tooth plate (203), a second tooth plate (206) meshing with the outer surface of the spur gear (204), two connecting plates (207) fixed to the left side of the first tooth plate (203) and to the right side of the second tooth plate (206), a vertical plate (208) fixed to the opposite sides of the two connecting plates (207), and a horizontal plate (209) fixed to the opposite sides of the two vertical plates (208).

2. The air tightness detection device for civil air defense doors according to claim 1 is characterized in that: The fixing assembly comprises two bin bodies (210) fixed to the upper surface of the transverse plate (209), a first motor (211) fixed to the lower surface of the inner cavity of the bin body (210), a first threaded rod (212) fixed to the output shaft of the first motor (211) and penetrating and extending to the top of the bin body (210), and a rod sleeve (213) threadedly connected to the outer surface of the first threaded rod (212).

3. The air tightness detection device for civil air defense doors according to claim 1 is characterized in that: T-shaped blocks are fixed on opposite sides of the first tooth plate (203) and the second tooth plate (206), and T-shaped grooves are provided on upper and lower sides of the inner cavity of the box body (3), and the T-shaped blocks are slidably connected to the inside of the T-shaped grooves.

4. The air tightness detection device for civil air defense doors according to claim 1, characterized in that: Sliding holes are provided on both the left and right sides of the box body (3), and the connecting plate (207) is slidably connected to the inside of the sliding holes.

5. The air tightness detection device for civil air defense doors according to claim 2 is characterized in that: A circular hole is provided on the upper surface of the bin body (210), a sealing ring is fixed inside the circular hole, and the first threaded rod (212) is rotatably connected to the inside of the sealing ring via a bearing.

6. The air tightness detection device for civil air defense doors according to claim 2, characterized in that: A limiting block is fixed on one side opposite to the two rod sleeves (213); a limiting rod is fixed on the upper surface of the bin body (210); and the limiting block is slidably connected to the outer surface of the limiting rod.

7. The air tightness detection device for civil air defense doors according to claim 1 is characterized in that: The moving mechanism (4) comprises a dual-axis motor (401) fixed to the lower surface of the inner cavity of the housing (5), a second rotating rod (402) fixed to the output shaft of the dual-axis motor (401), a first bevel gear (403) fixed to the outer surface of the second rotating rod (402), a second bevel gear (404) meshed with the outer surface of the first bevel gear (403), a second threaded rod (405) fixed to the lower surface of the second bevel gear (404) and penetrating and extending to the bottom of the housing (5), and a threaded sleeve (406) threadedly connected to the outer surface of the second threaded rod (405).

8. The air tightness detection device for civil air defense doors according to claim 7, characterized in that: The box body (3) is fixed to the lower surfaces of the two threaded sleeves (406), and the opposite sides of the two second rotating rods (402) are rotatably connected to the left and right sides of the inner cavity of the shell body (5) through bearing seats.

9. The air tightness detection device for civil air defense doors according to claim 7, characterized in that: A mounting plate is fixed between the two threaded sleeves (406), a plurality of mounting rods are fixed to the lower surface of the housing (5), and the mounting plate is slidably connected to the outer surfaces of the mounting rods.

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