Emergency hand-operated reinforced concrete single-leaf air-tight door

Abstract

The utility model discloses an emergency hand-operated reinforced concrete single-leaf air-tight door which comprises a door frame and an air-tight door body, the air-tight door body is arranged inside the door frame, fixing blocks are symmetrically installed at the rear end of the air-tight door body, a rotating rod is arranged at the rear end of the door frame, the fixing blocks are fixedly connected to the outer surface of the rotating rod, and a large bevel gear is installed on the outer surface of the rotating rod. A rotating shaft is installed at the front end of the bevel pinion and rotationally connected with the door frame, a first gear is installed on the outer surface of the rotating shaft, a hand-cranking mechanism is arranged in the door frame, and a limiting mechanism is arranged above the hand-cranking mechanism and installed in the door frame. The sealing door body is driven by the hand rocker to rotate to be opened or closed, the labor-saving effect is improved through the long hand rocker, the labor-saving effect is achieved through cooperation of the small bevel gear and the large bevel gear, when the sealing door body is closed, the limiting block is driven by the rotating block to descend and be inserted into the limiting notch, and the position of the sealing door body is fixed. And convenience, rapidness, time saving and labor saving are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of reinforced concrete airtight door, concretely relates to an emergency hand -operated reinforced concrete single -leaf airtight door. BACKGROUND

[0002] The reinforced concrete airtight door is a kind of special protective door, mainly applied in the occasion needing protection and airtight, such as refuge chamber, civil air defense engineering etc.The reinforced concrete door has the advantages such as cheap price, good early nuclear radiation resistance performance etc.But because its dead weight is relatively large, it is generally used for the personnel access of relatively small size.The existing reinforced concrete airtight door is mostly manually pushed to close and open, time-consuming and laborious, not enough convenient.Therefore, the technical personnel in the field provide an emergency hand -operated reinforced concrete single -leaf airtight door to solve the problems raised in the above background technology. CONTENT OF UTILITY MODEL

[0003] To solve the above technical problem, the utility model provides an emergency hand -operated reinforced concrete single -leaf airtight door, including door frame and sealing door body, the door frame inside is provided with sealing door body, the rear end of sealing door body is symmetrically installed fixed block, the rear end of door frame is provided with rotating rod, and fixed block is fixedly connected on the outer surface of rotating rod, the outer surface of rotating rod is installed big bevel gear, and big bevel gear and small bevel gear are engaged, the front end of small bevel gear is installed rotating shaft, and rotating shaft is rotatably connected door frame, the outer surface of rotating shaft is installed gear one, the inside of door frame is provided with hand -operated mechanism, the upper portion of hand -operated mechanism is provided with limiting mechanism, and limiting mechanism is installed in the door frame.

[0004] Preferably, the rotating rod is rotatably connected with the stop block at both ends, and the stop block is fixedly connected with the door frame.

[0005] Preferably, the hand -operated mechanism comprises a rotating rod and a fixed disc, the rotating rod is rotatably connected with the inside of the door frame, the outer surface of the rotating rod is symmetrically provided with the fixed disc, and the two fixed discs are respectively located on the front and rear sides of the door frame, and a limiting slot is formed in the side surface of the fixed disc.

[0006] Preferably, the outer surface of the rotating rod is symmetrically provided with a plurality of hand -operated rods, the outer surface of the rotating rod is provided with gear two, and the gear two is engaged with the gear one.

[0007] Preferably, the limiting mechanism comprises two hollow frames and a transmission rod, the two hollow frames are respectively fixedly connected with the front and rear ends of the door frame, a threaded rod is arranged in the inside of the hollow frame, the upper end of the threaded rod penetrates through the hollow frame and is provided with a bevel gear one, a threaded sleeve is sleeved on the outer surface of the threaded rod, a limiting block is arranged at the lower end of the threaded sleeve, and the limiting block is located at the position corresponding to the limiting slot.

[0008] Preferably, the transmission rod is rotatably connected with the inside of the door frame, the transmission rod is located above the hollow frame, two bevel gear two are arranged on the outer surface of the transmission rod, the bevel gear two is engaged with the bevel gear one, and rotating blocks are arranged at both ends of the transmission rod.

[0009] The technical effects and advantages of the utility model are as follows:

[0010] The utility model discloses a hand crank mechanism drives the sealing door body to rotate and open or close, improves the labor saving effect through the long hand crank, reaches the labor saving effect through the cooperation of small bevel gear and big bevel gear, when the sealing door body closes, drives the limit block to drop and insert into the limit slot through the rotating block, fixes the position of sealing door body, is convenient and fast, saves time and energy. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the structural schematic diagram of the utility model;

[0012] Fig. 2 It is the rear view of the utility model;

[0013] Fig. 3 It is the structural schematic diagram of the hand crank mechanism of the utility model;

[0014] Fig. 4 It is the structural schematic diagram of the limit mechanism of the utility model;

[0015] In the drawing:

[0016] 1, door frame;2, sealing door body;3, rotating rod;4, fixed block;5, stop block;6, big bevel gear;7, small bevel gear;8, gear one;9, hand crank mechanism;

[0017] 10, rotating rod;11, gear two;12, fixed disc;13, limit slot;14, hand crank;15, limit mechanism;16, hollow frame;17, threaded rod;18, threaded sleeve;19, limit block;

[0018] 20, bevel gear one;21, transmission rod;22, bevel gear two;23, rotating block. DETAILED DESCRIPTION

[0019] The utility model will be further explained in detail in the following with the drawings and specific embodiment. The embodiment of the utility model is given for example and description, and is not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiment is selected and described to better illustrate the principle and practical application of the utility model, and make those skilled in the art understand the utility model to design various embodiments with various modifications suitable for specific use.

[0020] Please refer to Figs. 1-4In this embodiment, an emergency hand-cranking reinforced concrete single-leaf sealed door is provided, which comprises a door frame 1 and a sealed door body 2, the sealed door body 2 is arranged inside the door frame 1, a fixed block 4 is symmetrically arranged at the rear end of the sealed door body 2, a rotating rod 3 is arranged at the rear end of the door frame 1, a stop block 5 is rotatably connected to the two ends of the rotating rod 3, the stop block 5 is fixedly connected to the door frame 1, the fixed block 4 is fixedly connected to the outer surface of the rotating rod 3, a large bevel gear 6 is arranged on the outer surface of the rotating rod 3, the large bevel gear 6 is engaged with a small bevel gear 7, a rotating shaft is arranged at the front end of the small bevel gear 7, the rotating shaft is rotatably connected to the door frame 1, a gear one 8 is arranged on the outer surface of the rotating shaft, a hand-cranking mechanism 9 is arranged inside the door frame 1, the hand-cranking mechanism 9 comprises a rotating rod 10 and a fixed disc 12, the rotating rod 10 is rotatably connected to the inside of the door frame 1, the fixed disc 12 is symmetrically arranged on the outer surface of the rotating rod 10, the two fixed discs 12 are respectively arranged on the front and rear sides of the door frame 1, a limiting slot 13 is formed in the side surface of the fixed disc 12, a plurality of hand-cranking rods 14 are symmetrically arranged on the outer surface of the rotating rod 10, a gear two 11 is arranged on the outer surface of the rotating rod 10, the gear two 11 is engaged with the gear one 8, a limiting mechanism 15 is arranged above the hand-cranking mechanism 9 and is arranged in the door frame 1, the limiting mechanism 15 comprises two hollow frames 16 and a transmission rod 21, the two hollow frames 16 are respectively fixedly connected to the front and rear ends of the door frame 1, a threaded rod 17 is arranged inside the hollow frame 16, the threaded rod 17 passes through the hollow frame 16 and is arranged with a bevel gear one 20 at the upper end of the threaded rod 17, a threaded sleeve 18 is sleeved on the outer surface of the threaded rod 17, a limiting block 19 is arranged at the lower end of the threaded sleeve 18 and is located at the position corresponding to the limiting slot 13, the transmission rod 21 is rotatably connected to the inside of the door frame 1 and is located above the hollow frame 16, two bevel gear twos 22 are arranged on the outer surface of the transmission rod 21 and are engaged with the bevel gear one 20, rotating blocks 23 are arranged at the two ends of the transmission rod 21.

[0021] The working principle of the utility model is: through the hand-cranking rod 14 drives the rotating rod 10 to rotate, through the hand-cranking rod 14 of lengthier improves the effect of saving labor, the rotating rod 10 drives the fixed disc 12 and gear two 11 synchronous rotation, gear two 11 and gear one 8 meshing drives the rotating shaft to rotate, the rotating shaft drives the small bevel gear 7 to rotate, the small bevel gear 7 and the large bevel gear 6 meshing drives the rotating rod 3 to rotate, the rotating rod 3 drives the sealed door body 2 to rotate and opens or closes through the fixed block 4, through the small bevel gear 7 and the large bevel gear 6 cooperation reaches the effect of saving labor;

[0022] When the sealed door body 2 is closed, the rotating block 23 drives the transmission rod 21 to rotate, the transmission rod 21 drives the bevel gear two 22 to rotate, the bevel gear two 22 and the bevel gear one 20 meshing drives the threaded rod 17 to rotate, the threaded rod 17 drives the threaded sleeve 18 to descend, the threaded sleeve 18 drives the limiting block 19 to descend and inserts into the limiting slot 13, fixes the position of the fixed disc 12, through the fixed disc 12 makes the rotating rod 10 position fixed, thereby fixes the position of the sealed door body 2.

[0023] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor shall belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. An emergency hand-operated reinforced concrete single-leaf security door comprising a door frame (1) and a sealed door body (2), characterized in that, The door frame (1) is internally provided with a sealing door body (2), the sealing door body (2) is symmetrically provided with a fixed block (4) at the rear end, the door frame (1) is provided with a rotating rod (3) at the rear end, the fixed block (4) is fixedly connected to the outer surface of the rotating rod (3), the rotating rod (3) is provided with a large bevel gear (6) on the outer surface, the large bevel gear (6) is engaged with a small bevel gear (7), the small bevel gear (7) is provided with a rotating shaft at the front end, the rotating shaft is rotatably connected to the door frame (1), the rotating shaft is provided with a gear one (8) on the outer surface, the door frame (1) is internally provided with a hand crank mechanism (9), the hand crank mechanism (9) is provided with a limiting mechanism (15) above, and the limiting mechanism (15) is arranged in the door frame (1).

2. The emergency hand-operated steel reinforced concrete single-leaf security door according to claim 1, wherein, The rotating rod (3) is rotatably connected with a stop block (5) at both ends, and the stop block (5) is fixedly connected to the door frame (1).

3. The emergency hand-operated steel reinforced concrete single-leaf security door according to claim 1, wherein, The hand crank mechanism (9) comprises a rotating rod (10) and a fixed disc (12), the rotating rod (10) is rotatably connected to the inside of the door frame (1), the rotating rod (10) is symmetrically provided with a fixed disc (12) on the outer surface, and the two fixed discs (12) are respectively located on the front and rear sides of the door frame (1), and the fixed disc (12) is provided with a limiting slot (13) on the side face.

4. The emergency hand-operated steel reinforced concrete single-leaf security door according to claim 3, wherein, The rotating rod (10) is symmetrically provided with a plurality of hand crank rods (14) on the outer surface, the rotating rod (10) is provided with a gear two (11) on the outer surface, and the gear two (11) is engaged with the gear one (8).

5. The emergency hand-operated steel reinforced concrete single-leaf security door according to claim 1, wherein, The limiting mechanism (15) comprises two hollow frames (16) and a transmission rod (21), the two hollow frames (16) are respectively fixedly connected to the front and rear ends of the door frame (1), the hollow frame (16) is internally provided with a threaded rod (17), the threaded rod (17) passes through the hollow frame (16) and is provided with a bevel gear one (20) at the upper end, the threaded rod (17) is provided with a threaded sleeve (18) on the outer surface, the threaded sleeve (18) is provided with a limiting block (19) at the lower end, and the limiting block (19) is located at the position corresponding to the limiting slot (13).

6. The emergency hand-operated steel reinforced concrete single-leaf security door according to claim 5, wherein, The transmission rod (21) is rotatably connected to the inside of the door frame (1), and the transmission rod (21) is located above the hollow frame (16), the transmission rod (21) is provided with two bevel gear two (22) on the outer surface, and the bevel gear two (22) is engaged with the bevel gear one (20), and the transmission rod (21) is provided with a rotating block (23) at both ends.

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