Civil air defense threshold structure

Abstract

The utility model discloses a civil air defense threshold structure, which belongs to the technical field of constructional engineering and comprises a driving gate pier and a driven gate pier, a lifting caliper is slidably connected in the driving gate pier, the lifting caliper is fixedly connected with a threshold, a tooth block is arranged on the lifting caliper, a wheel disc is rotatably connected in the driving gate pier, and a protruding spiral path is arranged on the wheel disc. The spiral path abuts against the tooth block in a matched mode, the end, away from the driving gate pier, of the threshold is slidably connected with the driven gate pier, the wheel disc is rotated clockwise, the spiral path drives the lifting caliper to ascend, and therefore the lifting caliper drives the threshold to ascend. The spiral path is matched with the tooth block in an abutting mode, lifting of the threshold can be achieved by rotating the wheel disc, operation is easy and convenient, extra power equipment or complex operation steps are not needed, the requirement of civil air defense engineering in wartime is met, and the problem that people and vehicles enter and exit inconveniently at ordinary times is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building engineering, especially relate to a civil air defense door threshold structure. BACKGROUND

[0002] Civil air defense engineering is generally a combination of peacetime and wartime engineering, and a large number of personnel and equipment enter and exit in peacetime, and the civil air defense door of the entrance needs to be closed in wartime to prevent shock waves and toxic gases from entering the civil air defense engineering. In order to ensure that the civil air defense door of the entrance can resist the effect of shock waves in wartime, the civil air defense door generally needs to be provided with a door threshold protruding from the ground for bearing the shock wave pressure on the door leaf, but the existing civil air defense threshold cannot be lifted, which brings great inconvenience to the personnel and vehicles entering and exiting in peacetime.

[0003] Therefore, it is urgent to design a civil air defense threshold structure to solve the problem that the civil air defense threshold cannot be lifted. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the technical problem that the civil air defense threshold cannot be lifted mentioned in the background art, a civil air defense threshold structure is provided to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the specific technical scheme of the civil air defense threshold structure of the utility model is as follows:

[0006] A civil air defense threshold structure, comprising a driving door pier and a driven door pier, a lifting caliper is slidably connected in the driving door pier, the lifting caliper is fixedly connected with the threshold, a tooth block is formed on the lifting caliper, a wheel disc is rotatably connected in the driving door pier, a protruding spiral path is formed on the wheel disc, the spiral path is in abutting cooperation with the tooth block, the end of the threshold away from the driving door pier is slidably connected with the driven door pier, the wheel disc is rotated clockwise, the spiral path drives the lifting caliper to rise, so that the lifting caliper drives the threshold to rise.

[0007] Further, the center of the wheel disc is rotatably connected with the driving door pier through a first pin shaft, and the center of the spiral path is at the same position as the center of the wheel disc.

[0008] Further, the rotation angle of the spiral path from the starting end of the path to the terminal end of the path is greater than 180 degrees.

[0009] Further, the rotation angle of the spiral path from the starting end of the path to the terminal end of the path is greater than 360 degrees.

[0010] Further, the wheel disc is provided with rotating teeth which are uniformly distributed along the center of the circle on the side away from the spiral path, the first pin shaft is rotatably connected with a swing rod, the swing rod is provided with a second pin shaft, the second pin shaft is rotatably connected with a swing block, the swing block is provided with meshing teeth, the meshing teeth are matched with the rotating teeth, and the straight line passing through the second pin shaft center and the first pin shaft center divides the plane into a forward rotation side and a reverse rotation side, when the swing block is located on the forward rotation side, the swing rod reciprocates, the meshing teeth abut with the rotating teeth, the wheel disc rotates clockwise, and then the lifting caliper is lifted, when the swing block is located on the reverse rotation side, the swing rod reciprocates, the meshing teeth abut with the rotating teeth, the wheel disc rotates counterclockwise, and then the lifting caliper is lowered.

[0011] Further, the cross-sectional area of the meshing teeth gradually decreases in the direction away from the swing block.

[0012] Further, the active gate pier is rotatably connected with a forward rotation driving rod and a reverse rotation driving rod, the forward rotation driving rod is provided with a first driving head, the first driving head contacts the swing block and drives the swing block to move around the second pin shaft when the forward rotation driving rod is rotated, so that the swing block rotates from the reverse rotation side to the forward rotation side, the reverse rotation driving rod is provided with a second driving head, the second driving head contacts the swing block and drives the swing block to move around the second pin shaft when the reverse rotation driving rod is rotated, so that the swing block rotates from the forward rotation side to the reverse rotation side.

[0013] The civil air defense door sill structure has the following advantages: the abutment of the spiral path and the tooth block can realize the lifting of the door sill by rotating the wheel disc, the operation is simple and convenient, no additional power equipment or complex operation steps are needed, the needs of wartime civil air defense projects are met, and the inconvenience of personnel and vehicles in peacetime is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the civil air defense door sill structure.

[0015] Figure 2 It is a wheel disc and lifting caliper connection schematic view of the civil air defense door sill structure.

[0016] Figure 3 It is a front view of the wheel disc of the civil air defense door sill structure.

[0017] Figure 4 It is a forward rotation driving rod and reverse rotation driving rod schematic view of the civil air defense door sill structure.

[0018] Marked description in the figure: 1, main door pier; 2, driven door pier; 3, lifting caliper; 301, tooth block; 4, wheel disc; 401, spiral path; 402, rotating tooth; 5, door sill; 6, first pin shaft; 7, second pin shaft; 8, swing rod; 9, swing block; 901, meshing tooth; 100, forward rotation side; 200, reverse rotation side; 10, forward rotation poking rod; 1001, first poking head; 11, reverse rotation poking rod; 1101, second poking head. DETAILED DESCRIPTION

[0019] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0021] The following will refer to the drawings Figure 1 to the drawings Figure 4 The present application discloses a civil air defense door sill structure.

[0022] The existing civil air defense door sill 5 cannot be lifted, which brings great inconvenience to the personnel and vehicles to enter and exit at ordinary times.

[0023] Therefore, the present application provides a civil air defense door sill structure, such as Figure 1 and Figure 2As shown, the door sill 5 is connected with the driven door pillar 2, and the driven door pillar 2 is connected with the active door pillar 1. The active door pillar 1 is connected with the lifting ruler 3, and the lifting ruler 3 is connected with the door sill 5. The lifting ruler 3 is connected with the tooth block 301, and the tooth block 301 is connected with the spiral path 401. The spiral path 401 is connected with the wheel disc 4. When the wheel disc 4 rotates clockwise, the spiral path 401 drives the lifting ruler 3 to rise, so that the door sill 5 rises. When the wheel disc 4 rotates counterclockwise, the spiral path 401 drives the lifting ruler 3 to fall, so that the door sill 5 falls.

[0024] As preferred, the spiral path 401 is arranged on the wheel disc 4, and the spiral path 401 is arranged on the wheel disc 4. Figure 3 As shown, the center of the wheel disc 4 is connected with the active door pillar 1 through the first pin shaft 6, and the center of the spiral path 401 is at the same position as the center of the wheel disc 4. Specifically, the spiral path 401 is arranged around the center of the wheel disc 4, so that when the wheel disc 4 rotates, the spiral path 401 can stably drive the tooth block 301 to rise or fall, thereby making the transmission process more stable and reliable.

[0025] As preferred, the rotation angle of the spiral path 401 from the path starting end to the path ending end is greater than 180 degrees. Specifically, there is at least one tooth block 301 that can be connected with the spiral path 401, that is, there is at least one force point between the spiral path 401 and the lifting ruler 3, so as to ensure that the spiral path 401 can support and drive the lifting ruler 3 to move.

[0026] In order to further ensure the stability of the transmission between the spiral path 401 and the lifting ruler 3, the rotation angle of the spiral path 401 from the path starting end to the path ending end is greater than 360 degrees, that is, there are at least two force points between the spiral path 401 and the lifting ruler 3, so as to ensure that the spiral path 401 can stably support and drive the lifting ruler 3 to move.

[0027] As preferred, the spiral path 401 is arranged on the wheel disc 4, and the spiral path 401 is arranged on the wheel disc 4. Figure 3As shown, the wheel disc 4 is provided with rotating teeth 402 which are uniformly distributed along the center of the wheel disc 4 on the side away from the spiral path 401. The first pin shaft 6 is rotatably connected with a swing lever 8. The swing lever 8 is provided with the second pin shaft 7. The second pin shaft 7 is rotatably connected with a swing block 9. The swing block 9 is provided with meshing teeth 901. The meshing teeth 901 are matched with the rotating teeth 402. Meanwhile, the straight line passing through the second pin shaft 7 and the first pin shaft 6 divides the plane into a forward rotation side 100 and a reverse rotation side 200. When the swing block 9 is located on the forward rotation side 100, the swing lever 8 reciprocating swings. The meshing teeth 901 are in abutting engagement with the rotating teeth 402, so that the wheel disc 4 rotates clockwise, and then the lifting caliper 3 is lifted. When the swing block 9 is located on the reverse rotation side 200, the swing lever 8 reciprocating swings. The meshing teeth 901 are in abutting engagement with the rotating teeth 402, so that the wheel disc 4 rotates counterclockwise, and then the lifting caliper 3 is lowered. Specifically, when the swing block 9 is located on the forward rotation side 100, the swing lever 8 moves upward. The meshing teeth 901 on the swing block 9 slide counterclockwise on the rotating teeth 402 under the action of gravity. When the swing lever 8 moves to the highest point and then moves downward, the meshing teeth 901 are in engagement with the rotating teeth 402. The swing block 9 drives the rotating teeth 402 to rotate clockwise. Conversely, the same is true. Thus, through the switching of the swing block 9 on the forward rotation side 100 and the reverse rotation side 200 and the reciprocating swing of the swing lever 8, the wheel disc 4 rotates clockwise and counterclockwise, so as to control the lifting and lowering of the threshold 5.

[0028] As preferred, the cross-sectional area of the meshing teeth 901 gradually decreases in the direction away from the swing block 9. Thus, when the swing lever 8 moves upward, the meshing teeth 901 slide counterclockwise on the rotating teeth 402 under the action of gravity. When the swing lever 8 moves downward, the meshing teeth 901 slide clockwise on the rotating teeth 402 under the action of gravity.

[0029] As preferred, as shown in the drawings, Figure 4 The driving door pier 1 is rotatably connected with a forward rotation driving lever 10 and a reverse rotation driving lever 11. The forward rotation driving lever 10 is provided with a first driving head 1001. When the forward rotation driving lever 10 is rotated, the first driving head 1001 contacts the swing block 9 and drives the swing block 9 to move around the second pin shaft 7, so that the swing block 9 rotates from the reverse rotation side 200 to the forward rotation side 100. The reverse rotation driving lever 11 is provided with a second driving head 1101. When the reverse rotation driving lever 11 is rotated, the second driving head 1101 contacts the swing block 9 and drives the swing block 9 to move around the second pin shaft 7, so that the swing block 9 rotates from the forward rotation side 100 to the reverse rotation side 200.

[0030] In a specific embodiment, as shown in the drawings, Figure 1As shown, the swing rod 8, the forward rotation lever 10 and the reverse rotation lever 11 extend to the outside of the active door pier 1, so as to facilitate personnel operation, rotate the forward rotation lever 10 downward, push the swing block 9 to the forward rotation side 100, then reciprocate the swing rod 8 upward and downward, so as to make the door sill 5 rise, rotate the reverse rotation lever 11 upward, push the swing block 9 to the reverse rotation side 200, then reciprocate the swing rod 8 upward and downward, so as to make the door sill 5 descend.

[0031] The utility model discloses a spiral path 401 and the abutment cooperation of tooth block 301, through the rotation wheel disc 4 can realize the lift of door sill 5, and the operation is simple and convenient, need not additional power equipment or complex operation step, both satisfy the demand of wartime civil air defense engineering, and solve the problem of inconvenient personnel and vehicle access in ordinary times.

[0032] Obviously, the above embodiments of the utility model are only for clear illustration of the utility model, and are not the limitation of the implementation mode of the utility model. For ordinary skilled person in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, all the implementation modes are not exhausted. Any modification, equivalent replacement and improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A civil defense threshold structure, characterized in that, It includes an active door pier and a passive door pier. The active door pier has a sliding caliper that is fixedly connected to the door sill. The caliper has a toothed block. The active door pier has a rotating wheel with a protruding spiral path that engages with the toothed block. The end of the door sill away from the active door pier is slidably connected to the passive door pier. Rotating the wheel clockwise drives the caliper to rise, thereby raising the door sill.

2. The civil defense threshold structure according to claim 1, characterized in that, The center of the wheel is rotatably connected to the active gate pier via the first pin, and the center of the spiral path is at the same position as the center of the wheel.

3. The civil defense threshold structure according to claim 2, characterized in that, The rotation angle of the spiral path from the starting end to the ending end is greater than 180 degrees.

4. The civil defense threshold structure according to claim 3, characterized in that, The spiral path rotates at an angle greater than 360 degrees from the beginning to the end of the path.

5. The civil defense threshold structure according to claim 2, characterized in that, The side of the wheel away from the spiral path has evenly distributed rotating teeth along the center. A swing rod is rotatably connected to the first pin, and a second pin is mounted on the swing rod. A swing block is rotatably connected to the second pin, and the swing block has meshing teeth that engage with the rotating teeth. A straight line passing through the centers of the second and first pins divides the plane into a clockwise and a counter-clockwise side. When the swing block is on the clockwise side, the swing rod swings back and forth, and the meshing teeth and rotating teeth engage to make the wheel rotate clockwise, thereby making the lifting caliper rise. When the swing block is on the reverse side, the swing rod swings back and forth, and the meshing teeth and rotating teeth engage to make the wheel rotate counterclockwise, thereby causing the lifting caliper to descend.

6. The civil defense threshold structure according to claim 5, characterized in that, The cross-sectional area of ​​the meshing teeth gradually decreases in the direction away from the oscillating block.

7. The civil defense threshold structure according to claim 5, characterized in that, The active gate pier is rotatably connected to a clockwise rotation lever and a counterclockwise rotation lever. The clockwise rotating lever is equipped with a first dial. When the clockwise rotating lever is rotated, the first dial contacts the swing block and drives the swing block to move around the second pin, so that the swing block rotates from the reverse side to the clockwise side. The reverse lever is equipped with a second dial. When the reverse lever is rotated, the second dial contacts the swing block and drives the swing block to move around the second pin, so that the swing block rotates from the clockwise side to the reverse side.

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