Reinforced concrete single-leaf air-tight door for civil air defense

Abstract

The utility model relates to the technical field of air-tight doors for civil air defense, and discloses a reinforced concrete single-leaf air-tight door for civil air defense, which comprises a door leaf, one side of the door leaf is fixedly connected with a cross, one side of the cross is fixedly connected with a cross plate, the cross is provided with a first turntable, and the cross is provided with a second turntable. A moving assembly capable of rapidly fixing the air-tight door up and down is arranged on the first rotating disc, a second rotating disc is arranged on the cross plate, and a fixing assembly capable of rapidly fixing the air-tight door left and right is arranged on the second rotating disc. In the use process, the door leaf is moved inwards through the grip, then the movable plate is made to move under the action of the rotating rod arranged on the fixing base, and therefore the movable plate drives the door leaf to move, and then the two sliding heads arranged on the door leaf are squeezed to move inwards; at the moment, a toothed plate fixedly connected with one side of the sliding head moves inwards under the action of a spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of civil air defense airtight door, concretely is civil air defense reinforced concrete single leaf airtight door. BACKGROUND

[0002] Reinforced concrete, often simply referred to as reinforced concrete in engineering, is a kind of composite material formed by adding reinforcing materials such as steel mesh, steel plate or fiber to concrete. This composite material improves the mechanical properties of concrete through the joint work of steel and concrete. Civil air defense reinforced concrete single leaf airtight door is an important protective equipment, mainly used in underground buildings, tunnels and other places to protect personnel and equipment from harsh environments.

[0003] According to the Chinese patent with publication number CN219316816U, a civil air defense reinforced concrete single leaf airtight door includes a door frame and a door leaf body hinged to the door frame through a hinge. The door frame is fixedly connected to the wall body through concrete. The door leaf body is made of reinforced concrete material. A placing cavity is formed in the door leaf body. A lead screw is rotatably connected to the inner bottom wall of the placing cavity. A screw block is threadedly connected to the outer peripheral surface of the lead screw. Guide rods are fixedly connected to the two sides of the screw block. A limiting portion is arranged between one of the guide rods and the inner wall of the placing cavity. A bottom hole is formed in the inner bottom wall of the placing cavity corresponding to the position of the guide rod. A driving portion is arranged on one side of the door leaf body. The utility model relates to the technical field of civil air defense airtight door. When the door leaf body rotates, the guide rods can support the door leaf body, preventing the door leaf body from tilting or pulling the hinge, and reducing the maintenance cost of the civil air defense single leaf airtight door.

[0004] In the above scheme, the door leaf body is made of reinforced concrete material, and a placing cavity is formed in the door leaf body. A lead screw is rotatably connected to the inner bottom wall of the placing cavity. A screw block is threadedly connected to the outer peripheral surface of the lead screw. Guide rods are fixedly connected to the two sides of the screw block. A limiting portion is arranged between one of the guide rods and the inner wall of the placing cavity. This results in the following shortcomings: the existing airtight door fixing structure is too simple. The inner locking structure of the airtight door can only be fixed in one place when the airtight door is closed, reducing the firmness and safety of the sealing door. Moreover, the existing sealing door only has a door lock switch on one side. When someone mistakenly enters the airtight door and closes it, it cannot be opened from the inside, which may cause safety hazards, thereby reducing the flexibility of the airtight door. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a civil air defense reinforced concrete single leaf airtight door to solve the technical problem that the inner locking structure of the airtight door can only be fixed in one place when the airtight door is closed, and the existing sealing door only has a door lock switch on one side.

[0006] In order to realize the above-mentioned practical new type purpose, the utility model discloses the following technical scheme: A civil air defense reinforced concrete single-leaf airtight door, including the door leaf, one side of the door leaf is fixedly connected with the cross, one side of the cross is fixedly connected with the cross plate, be provided with the first rotating disc on the cross, be provided with the mobile assembly that can be fixed to the airtight door up and down quickly on the first rotating disc, be provided with the second rotating disc on the cross plate, be provided with the fixed component that can be fixed to the airtight door left and right quickly on the second rotating disc.

[0007] Preferably, the mobile assembly comprises a first rotating shaft, the first rotating shaft is fixedly connected to the first rotating disc, one end of the first rotating shaft is fixedly connected with a first bevel gear, one side of the first bevel gear is provided with a second bevel gear, the first bevel gear and the second bevel gear are in gear engagement, one side of the second bevel gear is fixedly connected with a second rotating shaft, one side of the cross plate is fixedly connected with two first fixed plates, the second rotating shaft penetrates through the first fixed plate, one side of the second rotating shaft is fixedly connected with a third bevel gear, one side of the third bevel gear is provided with a fourth bevel gear, the third bevel gear and the fourth bevel gear are in gear engagement, one side of the fourth bevel gear is fixedly connected with a third rotating shaft, one side of the third rotating shaft is fixedly connected with a gear, one side of the gear is provided with a toothed plate, the gear and the toothed plate are in gear engagement, one side of the toothed plate is fixedly connected with a sliding head, the other side of the toothed plate is fixedly connected with a circular plate, one side of the circular plate is fixedly connected with a spring, one side of the spring is fixedly connected with a placing plate, a square slot is formed in the door leaf, a sliding groove is formed in the square slot, the placing plate is fixedly connected to the square slot, one side of the sliding head is fixedly connected with a sliding block, the sliding block is slidingly connected to the sliding groove.

[0008] Preferably, the fixed component comprises a fourth rotating shaft, the fourth rotating shaft is fixedly connected to the second rotating disc, one side of the fourth rotating shaft is fixedly connected with a fifth bevel gear, one side of the fifth bevel gear is provided with a sixth bevel gear, the fifth bevel gear and the sixth bevel gear are in gear engagement, one side of the sixth bevel gear is fixedly connected with a fifth rotating shaft, one side of the cross plate is fixedly connected with two second fixed plates, the fifth rotating shaft penetrates through the second fixed plate, one end of the fifth rotating shaft is fixedly connected with a seventh bevel gear, one side of the seventh bevel gear is provided with an eighth bevel gear, the seventh bevel gear and the eighth bevel gear are in gear engagement.

[0009] Preferably, one side of the door leaf is provided with a wallboard, one side of the wallboard is fixedly connected with a fixed seat.

[0010] Preferably, a rotating rod is rotatably connected to the fixed seat, a moving plate is rotatably connected to the outer wall of the rotating rod.

[0011] Preferably, one side of the door leaf is fixedly connected with a handle, and four sides of the door leaf are fixedly connected with sealing strips.

[0012] Preferably, a round hole is formed in the first fixed plate.

[0013] Compared with the prior art, the reinforced concrete single-leaf air defense door has the following beneficial effects:

[0014] I. In use, the door leaf is moved inward by the handle, and then the moving plate is moved under the action of the rotating rod arranged on the fixing seat, so that the moving plate drives the door leaf to move, and then the two sliding heads arranged on the door leaf are pressed and moved inward, at this time the tooth plate fixedly connected to one side of the sliding head moves inward under the action of the spring, and then the two sliding heads enter the square slot and are fixed, at this time the sealing strips arranged on four sides of the door leaf are tightly attached to the wallboard, and then the first rotating disc is rotated to open the door leaf from the outside, at this time the first rotating disc drives the first shaft to rotate, and then the first shaft drives the first bevel gear, the second bevel gear, the second shaft, the third bevel gear, the fourth bevel gear and the third shaft to rotate at the same time, at this time the gears rotate on the tooth plate, and then the sliding heads move inward under the action of the spring, so that the door leaf is quickly opened from the outside, thereby improving the safety and flexibility in use, the operation is convenient, the complex structure and operation steps are reduced, the work is greatly simplified, time and labor are saved, the time is saved, and the safety hidden danger is solved.

[0015] II. In use, the second rotating disc is rotated from the inside of the door, and then the second rotating disc drives the fourth shaft to rotate, at this time the fourth shaft drives the fifth bevel gear to rotate, and then the sixth bevel gear meshed with the fifth bevel gear rotates, at this time the sixth bevel gear drives the fifth shaft to rotate, and then the fifth shaft drives the seventh bevel gear to rotate, at this time the eighth bevel gear meshed with the seventh bevel gear rotates, so that the sliding heads are quickly retracted inward, and then the door leaf is opened from the inside of the door, thereby improving the safety and flexibility in use, the connection is firm, the practicality is improved, the operation is simple, stable and reliable, time and labor are saved, the time is saved, and the safety is reliable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the embodiment.

[0017] Figure 2 It is a schematic diagram of the explosion structure of the embodiment.

[0018] Figure 3 It is a schematic diagram of the structure of the sliding head of the embodiment.

[0019] Figure 4 It is a schematic diagram of the structure of the fifth bevel gear of the embodiment.

[0020] In the figure: 1, door leaf; 2, cross; 3, cross plate; 4, first rotating shaft; 5, first rotating disc; 6, first bevel gear; 7, second bevel gear; 8, second rotating shaft; 9, first fixed plate; 10, third bevel gear; 11, fourth bevel gear; 12, third rotating shaft; 13, gear; 14, toothed plate; 15, sliding head; 16, round plate; 17, spring; 18, sliding block; 19, fourth rotating shaft; 20, second rotating disc; 21, fifth bevel gear; 22, sixth bevel gear; 23, fifth rotating shaft; 24, second fixed plate; 25, seventh bevel gear; 26, eighth bevel gear; 27, wall plate; 28, fixed seat; 29, rotating rod; 30, moving plate; 31, handle; 32, sealing strip; 33, square groove; 34, sliding groove. DETAILED DESCRIPTION

[0021] The preferred embodiments of the utility model will be described in detail below with reference to the drawings.

[0022] As Figures 1-3 shown, a reinforced concrete single-leaf air defense door comprises a door leaf 1, one side of the door leaf 1 is fixedly connected with a cross 2, one side of the cross 2 is fixedly connected with a cross plate 3, the cross 2 is provided with a first rotating disc 5, the first rotating disc 5 is provided with a moving assembly capable of quickly fixing the air defense door up and down, the cross plate 3 is provided with a second rotating disc 20, the second rotating disc 20 is provided with a fixing assembly capable of quickly fixing the air defense door left and right, the moving assembly comprises a first rotating shaft 4, the first rotating shaft 4 is fixedly connected to the first rotating disc 5, one end of the first rotating shaft 4 is fixedly connected with a first bevel gear 6, one side of the first bevel gear 6 is provided with a second bevel gear 7, the first bevel gear 6 and the second bevel gear 7 are in gear engagement, one side of the second bevel gear 7 is fixedly connected with a second rotating shaft 8, one side of the cross plate 3 is fixedly connected with two first fixed plates 9, the second rotating shaft 8 penetrates through the first fixed plates 9, one side of the second rotating shaft 8 is fixedly connected with a third bevel gear 10, one side of the third bevel gear 10 is provided with a fourth bevel gear 11, the third bevel gear 10 and the fourth bevel gear 11 are in gear engagement, one side of the fourth bevel gear 11 is fixedly connected with a third rotating shaft 12, one side of the third rotating shaft 12 is fixedly connected with a gear 13, one side of the gear 13 is provided with a toothed plate 14, the gear 13 and the toothed plate 14 are in gear engagement, one side of the toothed plate 14 is fixedly connected with a sliding head 15, the other side of the toothed plate 14 is fixedly connected with a round plate 16, one side of the round plate 16 is fixedly connected with a spring 17, one side of the spring 17 is fixedly connected with a placing plate, the door leaf 1 is provided with a square groove 33, the square groove 33 is provided with a sliding groove 34, the placing plate is fixedly connected to the square groove 33, one side of the sliding head 15 is fixedly connected with a sliding block 18, the sliding block 18 is slidingly connected to the sliding groove 34, one side of the door leaf 1 is fixedly connected with a handle 31, four sides of the door leaf 1 are fixedly connected with sealing strips 32.

[0023] In use, by moving the door leaf 1 inward with the handle 31, then the moving plate 30 is moved under the action of the rotating rod 29 arranged on the fixing seat 28, so that the moving plate 30 drives the door leaf 1 to move, then the two sliding heads 15 arranged on the door leaf 1 are pressed to move inward, at this time the tooth plate 14 fixedly connected on one side of the sliding head 15 moves inward under the action of the spring 17, then the two sliding heads 15 enter the square slot 33 to be fixed, at this time the sealing strips 32 arranged on four sides of the door leaf 1 are tightly attached to the wall plate 27, then the first rotating disc 5 is rotated to open the door leaf 1 from the outside, at this time the first rotating disc 5 drives the first rotating shaft 4 to rotate, then the first rotating shaft 4 drives the first bevel gear 6, the second bevel gear 7, the second rotating shaft 8, the third bevel gear 10, the fourth bevel gear 11, and the third rotating shaft 12 to rotate at the same time, at this time the gear 13 rotates on the tooth plate 14, then the sliding head 15 moves inward under the action of the spring 17, so as to quickly open the door leaf 1 from the outside, thereby improving the safety and flexibility in use, the structure is easy to use, convenient to operate, reduces the complex structure and operation steps, greatly simplifies the work, saves time and effort, is convenient and fast, saves time, is safe and reliable, and solves the safety hidden danger.

[0024] As shown in Figures 1-4 The fixing assembly includes a fourth rotating shaft 19, the fourth rotating shaft 19 is fixedly connected to the second rotating disc 20, one side of the fourth rotating shaft 19 is fixedly connected with a fifth bevel gear 21, one side of the fifth bevel gear 21 is provided with a sixth bevel gear 22, the fifth bevel gear 21 is in gear engagement with the sixth bevel gear 22, one side of the sixth bevel gear 22 is fixedly connected with a fifth rotating shaft 23, one side of the cross plate 3 is fixedly connected with two second fixing plates 24, the fifth rotating shaft 23 penetrates through the second fixing plate 24, one end of the fifth rotating shaft 23 is fixedly connected with a seventh bevel gear 25, one side of the seventh bevel gear 25 is provided with an eighth bevel gear 26, the seventh bevel gear 25 is in gear engagement with the eighth bevel gear 26, one side of the door leaf 1 is provided with a wall plate 27, one side of the wall plate 27 is fixedly connected with a fixing seat 28.

[0025] In use, by rotating the second rotating disc 20 from the inside of the door, then the second rotating disc 20 drives the fourth rotating shaft 19 to rotate, at this time the fourth rotating shaft 19 drives the fifth bevel gear 21 to rotate, then the sixth bevel gear 22 in gear engagement with the fifth bevel gear 21 rotates, at this time the sixth bevel gear 22 drives the fifth rotating shaft 23 to rotate, then the fifth rotating shaft 23 drives the seventh bevel gear 25 to rotate, at this time the eighth bevel gear 26 in gear engagement with the seventh bevel gear 25 rotates, so as to quickly retract the sliding head 15 inward, then the door leaf 1 is opened from the inside of the door, thereby improving the safety and flexibility in use, the connection is firm, the practicality is improved, the operation is simple, stable and reliable, saves time and effort, is convenient and fast, saves time, is safe and reliable.

[0026] The above merely is the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change are covered in the protection scope of the utility model.

Claims

1. A reinforced concrete single-leaf blast door, comprising a door leaf (1), characterized in that: One side of the door leaf (1) is fixedly connected with a cross (2), one side of the cross (2) is fixedly connected with a cross plate (3), the cross (2) is provided with a first rotating disc (5), the first rotating disc (5) is provided with a moving assembly which can quickly fix the airtight door up and down, the cross plate (3) is provided with a second rotating disc (20), the second rotating disc (20) is provided with a fixing assembly which can quickly fix the airtight door left and right.

2. The reinforced concrete single-leaf security door according to claim 1, characterized in that: The moving assembly comprises a first rotating shaft (4), the first rotating shaft (4) is fixedly connected with the first rotating disc (5), one end of the first rotating shaft (4) is fixedly connected with a first bevel gear (6), one side of the first bevel gear (6) is provided with a second bevel gear (7), the first bevel gear (6) and the second bevel gear (7) are gear engaged, one side of the second bevel gear (7) is fixedly connected with a second rotating shaft (8), one side of the cross plate (3) is fixedly connected with two first fixed plates (9), the second rotating shaft (8) penetrates the first fixed plate (9), one side of the second rotating shaft (8) is fixedly connected with a third bevel gear (10), one side of the third bevel gear (10) is provided with a fourth bevel gear (11), the third bevel gear (10) and the fourth bevel gear (11) are gear engaged, one side of the fourth bevel gear (11) is fixedly connected with a third rotating shaft (12), one side of the third rotating shaft (12) is fixedly connected with a gear (13), one side of the gear (13) is provided with a toothed plate (14), the gear (13) and the toothed plate (14) are gear engaged, one side of the toothed plate (14) is fixedly connected with a sliding head (15), the other side of the toothed plate (14) is fixedly connected with a circular plate (16), one side of the circular plate (16) is fixedly connected with a spring (17), one side of the spring (17) is fixedly connected with a placing plate, the door leaf (1) is provided with a square slot (33), the square slot (33) is provided with a sliding groove (34), the placing plate is fixedly connected with the square slot (33), one side of the sliding head (15) is fixedly connected with a sliding block (18), the sliding block (18) is slidingly connected with the sliding groove (34).

3. The reinforced concrete single-leaf security door according to claim 2, characterized in that: The fixed component comprises a fourth rotating shaft (19), the fourth rotating shaft (19) is fixedly connected on the second rotating disc (20), one side of the fourth rotating shaft (19) is fixedly connected with a fifth bevel gear (21), one side of the fifth bevel gear (21) is provided with a sixth bevel gear (22), the fifth bevel gear (21) is in gear engagement with the sixth bevel gear (22), one side of the sixth bevel gear (22) is fixedly connected with a fifth rotating shaft (23), one side of the cross plate (3) is fixedly connected with two second fixed plates (24), the fifth rotating shaft (23) penetrates the second fixed plate (24), one end of the fifth rotating shaft (23) is fixedly connected with a seventh bevel gear (25), one side of the seventh bevel gear (25) is provided with an eighth bevel gear (26), the seventh bevel gear (25) is in gear engagement with the eighth bevel gear (26).

4. The reinforced concrete single-leaf security door according to claim 3, characterized in that: One side of the door leaf (1) is provided with a wallboard (27), one side of the wallboard (27) is fixedly connected with a fixing seat (28).

5. The reinforced concrete single-leaf security door according to claim 4, characterized in that: The fixing seat (28) is rotatably connected with a rotating rod (29), the outer wall of the rotating rod (29) is rotatably connected with a moving plate (30).

6. The reinforced concrete single-leaf security door according to claim 5, characterized in that: One side of the door leaf (1) is fixedly connected with a handle (31), four sides of the door leaf (1) are fixedly connected with a sealing strip (32).

7. The reinforced concrete single-leaf security door according to claim 6, characterized in that: The first fixed plate (9) is provided with a round hole.

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