CN211008171U

CN211008171U - Movable doorsill structure of civil air defense door

Info

Publication number: CN211008171U
Application number: CN201921819246.6U
Authority: CN
Inventors: 卫占伟; 郭俊伟; 马道; 李光辉; 彭国强; 理开放; 刘娟; 张锟明
Original assignee: Henan Bangxing Protective Equipment Co ltd
Current assignee: Henan Bangxing Protective Equipment Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-14
Anticipated expiration: 2029-10-28

Abstract

The utility model provides a people's air defense door activity threshold structure, the inside vacuole formation of door frame, the back shaft is installed in the inside rotation of cavity of door frame, inherent rope sheave of cover in proper order from inside to outside on the back shaft, the thorn wheel, gear and turning handle, be equipped with the rack with gear engaged with in the cavity, be connected with the footboard on the rack, two haulage ropes of fixedly connected with and two haulage ropes are located first haulage rope and second haulage rope respectively on the rope sheave and are directly with threshold fixed connection, install first runner and first runner rotation and install in the cavity upper left side in the cavity, install second runner and second runner rotation and install in the cavity upper right side in the cavity, first haulage rope passes through and fixed connection between first haulage rope and the threshold from the top of first runner and second runner respectively. Can still can easily be quick under the effect that does not have the electric power remove the threshold to change convenient and fast between the peacetime and wartime.

Description

Movable doorsill structure of civil air defense door

Technical Field

The utility model relates to a people's air defense door equipment technical field especially relates to a people's air defense door activity threshold structure.

Background

With the rapid development of city construction, the construction of civil air defense projects also steps on the roads with high-speed development, and various protection projects are largely constructed in cities. The protection engineering is a general term for various engineering buildings constructed to resist destruction of weapons of destruction. Dividing the engineering into field operation protection engineering and permanent protection engineering according to properties; the construction forms are divided into open-air type, covering type and tunnel type protection projects. The protection projects for shielding personnel are mostly of the cover type and the tunnel type. The large-scale personnel protection engineering has high resistance, nuclear, chemical and biological weapons prevention, fireproof and moistureproof functions and various living equipment. The civil air defense door is important equipment for protecting the mouth of the civil air defense project, and the civil air defense door is closed to seal the protective project in war to protect personnel, materials, equipment and the like in the protective project from being damaged by the war. Many newly-built protection projects all have peacetime and wartime dual-purpose function, need satisfy the current of personnel, vehicle and goods and materials at ordinary times, need set up the threshold that lives and satisfy the needs in people's air defense door department. During wartime, the live doorsill needs to be installed in a short time for peacetime conversion. The movable doorsill is generally thick and heavy, the detachable movable doorsill is not only not easy to move and is also easy to cause smashing injury when in use, at present, the whole movable doorsill is lifted up through the motor and the electric movable doorsill is also easy to damage, but in many emergency situations such as war periods, the power supply is unstable, the doorsill cannot be lifted up and down under the condition of no power supply, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

To the situation, for overcoming the defect of prior art, the utility model aims at providing a people's air defense door activity threshold structure, can easily change between the peacetime and wartime state, guarantee simultaneously not having the change that can relax equally under the condition of supply in the shop, can not influence the normal use of people's air defense door.

The movable doorsill structure of the civil air defense door comprises a door frame and a door plate, wherein the door plate is rotatably installed on the door frame, a cavity is formed inside the door frame, the doorsill positioned inside the cavity is arranged under the door plate, the doorsill is a cuboid matched with the door plate, a supporting shaft is rotatably installed inside the cavity of the door frame, a rope wheel, a thorn wheel, a gear and a rotating handle are sequentially sleeved on the supporting shaft from inside to outside, a rack meshed with the gear is arranged in the cavity, the rack can slide up and down in the cavity, a pedal is connected to the rack, a thorn matched with the thorn wheel is installed inside the cavity, two traction ropes are fixedly connected to the rope wheel, the two traction ropes are respectively positioned at a first traction rope and a second traction rope, the second traction rope is directly fixedly connected with the doorsill, a first rotating wheel is installed in the cavity, and the first rotating wheel is rotatably installed at the upper left of the cavity, the cavity is internally provided with a second rotating wheel, the second rotating wheel is rotatably arranged at the upper right part of the cavity, the first traction rope passes through the upper parts of the first rotating wheel and the second rotating wheel respectively, and the first traction rope is fixedly connected with the threshold.

Preferably, the threshold is horizontally arranged, the downward surface of the threshold is provided with a plurality of guide holes, a plurality of guide rods which correspond to the positions and the number of the guide holes one to one are arranged below the threshold, and the guide rods are fixed in the cavity.

Preferably, the first traction rope is vertically arranged with the threshold, the first rotating wheel and the second rotating wheel are positioned on the same horizontal plane, and the second traction rope is vertically arranged with the threshold.

Preferably, a connecting rod is fixed on the rack, the pedal and the connecting rod are connected in a rotating mode, a torsional spring is arranged at the rotating connection position of the pedal and the connecting rod, the driving direction of the torsional spring is the direction enabling the pedal to rotate upwards, and a stop pin is arranged on the connecting rod.

Preferably, be equipped with the spout in the cavity and sting the claw and can slide through the spout, one side of spout is equipped with the commentaries on classics round pin and changes the round pin and go up the rotation and be connected with the shelves pole, and the spout deviates from one side of changeing the round pin and is equipped with the bayonet lock.

The utility model has the advantages that: the power supply unstable condition can still be relaxed and quick when in war and adjust the threshold, utilizes the weight of human self to cut down the weight of threshold, makes the threshold can be relaxed when removing and removes to can consider the gravity of threshold self when peaceful time and change, saved a large amount of manpowers, need not move the threshold and reduced personnel injured's possibility.

Drawings

Fig. 1 is a schematic front structural view of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic side view of the shaft structure of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the movable doorsill structure of the civil air defense door comprises a door frame 1 and a door panel 2, and is characterized in that the door panel 2 is rotatably installed on the door frame 1, a cavity 3 is formed inside the door frame 1, a doorsill 4 positioned inside the cavity 3 is arranged under the door panel 2, the doorsill 4 is a cuboid matched with the door panel 2, a supporting shaft 5 is rotatably installed inside the cavity 3 of the door frame 1, a rope wheel 10, a ratchet wheel 8, a gear 6 and a rotating handle 7 are sequentially sleeved on the supporting shaft 5 from inside to outside, a rack 9 meshed with the gear 6 is arranged in the cavity 3, the rack 9 can slide up and down in the cavity 3, a pedal 11 is connected to the rack 9, a ratchet claw 12 matched with the ratchet wheel 8 is arranged inside the cavity 3, two traction ropes are fixedly connected to the rope wheel 10, and the two traction ropes are respectively positioned on a first traction rope 13 and a second traction rope 14, second haulage rope 14 is direct and threshold 4 fixed connection, install first runner 15 and first runner 15 in the cavity 3 and rotate and install in cavity 3 upper left side, install second runner 16 and second runner 16 in the cavity 3 and rotate and install in cavity 3 upper right side, first haulage rope 13 is respectively from first runner 15 and second runner 16's top through and fixed connection between first haulage rope 13 and the threshold 4.

When the device is used, the doorframe 1 of the device is fixed at a required position through concrete, and the lower part of the doorframe 1 is leveled with the position where the doorframe is positioned. The doorsill 4 is flush with the doorframe 1 in the peace period, so that the passing of vehicles can be facilitated, and the normal use of the civil air defense door in the peace period cannot be influenced. When meeting a war period, the civil air defense door needs to be closed, so the door sill 4 needs to be lifted upwards to enable the door sill 4 to be sealed with the door panel 2 to prevent accidents. When the door panel 2 needs to be lifted up, firstly a person can stand on the pedal 11, then the rotating handle 7 is rotated manually, because the rotating handle 7 is fixed on the rotating shaft which is rotatably arranged in the cavity 3 in the door panel 2, the rotating handle 7 can be rotated to drive the rotating shaft to rotate anticlockwise, the rotating shaft is fixed with the gear 6, the thorn wheel 8 and the rope wheel 10 which can rotate synchronously, the gear 6 is meshed with the rack 9, the rack 9 can slide up and down freely, the rack 9 is connected with the pedal 11, so that when the person stands on the pedal 11, the gear 6 can be given certain power, the same gear 6 is fixed on the rotating shaft, the person stands on the pedal 11 to operate, a large amount of action intensity is saved, the threshold 4 is generally thicker, the number of people standing on the pedal 11 can be adjusted according to the needs of actual situations, the force for moving the driving threshold 4 is reduced to facilitate a quick operation. The rotating shaft is also fixed with a thorn wheel 8, a matched thorn claw 12 is arranged in the cavity 3, when the thorn wheel 8 rotates, the thorn claw 12 can fix the gear 6 reversely to prevent the thorn wheel 8 from reversing to affect the normal use of the device, a first traction rope 13 and a second traction rope 14 are fixed on the rope wheel 10, a first rotating wheel 15 and a second rotating wheel 16 are rotatably arranged in the cavity 3, the first traction rope 13 penetrates through the upper parts of the first rotating wheel 15 and the second rotating wheel 16 to be fixedly connected with the threshold 4, the second traction rope 14 downwards penetrates through the upper part of the rope wheel 10 to be fixedly connected with the threshold 4, so that the sheave 10 fixed to the rotation shaft is rotated when the rotation shaft is rotated, thereby winding the first traction rope 13 and the second traction rope 14 around the sheave 10, therefore, the purpose of lifting the threshold 4 is achieved, the threshold 4 and the door panel 2 are sealed, and accidents are prevented. When the vehicle is peacefully driven, the door sill 4 can fall down to reach a position which is level with the ground under the action of gravity only by moving the thorn claws 12, so that the vehicle can conveniently pass through the door sill. The device adopts manual operation, so that the aim that the threshold 4 cannot be normally moved due to the instability of a power supply system in war is avoided, the intensity of the threshold 4 in operation is reduced by the weight of a human body during operation, the operation is convenient and fast, and the structural use effect is good.

The threshold 4 is horizontally arranged, a plurality of guide holes 17 are formed in the downward surface of the threshold 4, a plurality of guide rods 18 corresponding to the guide holes 17 in position and quantity one by one are arranged below the threshold 4, and the guide rods 18 are fixed in the cavity 3.

In order to prevent the threshold 4 from being unable to be closed effectively due to the position deviation generated when moving up and down, which causes the danger due to the unable normal closing, the threshold 4 is provided with a plurality of guide holes 17 and a guide rod 18, which can stabilize the threshold 4 in the vertical direction, and the deviation is not generated to influence the normal use of the civil air defense door.

The first traction rope 13 is vertically arranged between the threshold 4, the first rotating wheel 15 and the second rotating wheel 16 are positioned on the same horizontal plane, and the second traction rope 14 is vertically arranged between the threshold 4.

In order to prevent unnecessary wear of the traction ropes and reduce unnecessary force waste during movement of the threshold 4, the first traction rope 13 is vertically arranged between the threshold 4 and the second traction rope 14 is vertically arranged between the threshold 4, so that the force waste can be effectively prevented from being dispersed.

The rack 9 is fixed with a connecting rod 20, the pedal 11 and the connecting rod 20 are rotatably connected, a torsional spring is arranged at the rotating connection position of the pedal 11 and the connecting rod 20, the driving direction of the torsional spring is the upward rotating direction of the pedal 11, and a stop pin 19 is arranged on the connecting rod 20.

The pedal 11 is horizontally placed when in use, so that inconvenience is avoided when the pedal is not used, the pedal and the connecting rod 20 are rotatably installed, and a torsion spring is arranged and can drive the pedal 11 to rotate upwards to enable the pedal to be close to the rack 9, so that inconvenience is avoided.

The cavity 3 is internally provided with a sliding groove 21, the pawl 12 can slide through the sliding groove 21, one side of the sliding groove 21 is provided with a rotating pin, the rotating pin is rotatably connected with a stop lever 22, and one side of the sliding groove 21 departing from the rotating pin is provided with a bayonet 23.

The thorn claw 12 can clamp and fix the thorn wheel 8, but because the threshold 4 is thick and heavy, the thorn claw 12 is not easy to move due to large stress, a sliding groove 21 is arranged in the cavity 3, when the thorn claw 12 is required to move, the thorn claw 12 only needs to move along the rotating direction of the thorn wheel 8, the convenience and the rapidness are realized, the blocking rod 22 can fix the thorn claw 12, and when the thorn wheel 8 is required to be clamped and fixed, the blocking rod 22 can fix the thorn claw 12.

The above-mentioned embodiments are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a people's air defense door activity threshold structure, includes door frame (1) and door plant (2), its characterized in that, door plant (2) rotate to be installed on door frame (1), be equipped with threshold (4) that are located cavity (3) inside under door frame (1) inside vacuole formation (3) and door plant (2), threshold (4) for with door plant (2) between the matched with cuboid, back shaft (5) are installed in the rotation of cavity (3) inside of door frame (1), overlap intrinsic rope sheave (10), thorn wheel (8), gear (6) and twist grip (7) from inside to outside in proper order on back shaft (5), be equipped with in cavity (3) with gear (6) engaged with rack (9) and can slide from top to bottom in cavity (3), be connected with footboard (11) on rack (9), cavity (3) inside be equipped with install with thorn claw (12) with matched with between thorn wheel (8), two haulage ropes of fixedly connected with and two haulage ropes are first haulage rope (13) and second haulage rope (14) of difference position on rope sheave (10), second haulage rope (14) are direct and threshold (4) fixed connection, install first runner (15) and first runner (15) in cavity (3) and rotate and install in cavity (3) upper left side, install second runner (16) and second runner (16) in cavity (3) and rotate and install in cavity (3) upper right side, first haulage rope (13) are respectively from the top of first runner (15) and second runner (16) through and fixed connection between first haulage rope (13) and the threshold (4).

2. The structure of a civil air defense door movable threshold according to claim 1, characterized in that the threshold (4) is horizontally arranged, the downward surface of the threshold (4) is provided with a plurality of guide holes (17), a plurality of guide rods (18) corresponding to the positions and the number of the guide holes (17) are arranged below the threshold (4), and the guide rods (18) are fixed in the cavity (3).

3. A people's air defense door threshold structure, according to claim 1, characterized in that the first pulling rope (13) is arranged vertically to the door threshold (4), the first wheel (15) and the second wheel (16) are located on the same horizontal plane, and the second pulling rope (14) is arranged vertically to the door threshold (4).

4. The people's air defense door threshold structure of claim 1, characterized in that, a connecting rod (20) is fixed on the rack (9), the pedal (11) is rotatably connected with the connecting rod (20), a torsional spring is arranged at the rotary connection position of the pedal (11) and the connecting rod (20), the driving direction of the torsional spring is the direction that the pedal (11) rotates upwards, and a stop pin (19) is arranged on the connecting rod (20).

5. The structure of a civil air defense door movable doorsill according to claim 1, characterized in that a chute (21) is arranged in the cavity (3) and the stabbing claw (12) can slide through the chute (21), a rotating pin is arranged on one side of the chute (21) and is rotatably connected with a stop lever (22), and a bayonet lock (23) is arranged on one side of the chute (21) departing from the rotating pin.