CN211342555U

CN211342555U - Civil air defense door

Info

Publication number: CN211342555U
Application number: CN201921741419.7U
Authority: CN
Inventors: 冯国华
Original assignee: Shanghai Hengliang Civil Defense Equipment Electromechanical Co ltd
Current assignee: Shanghai Hengliang Civil Defense Equipment Electromechanical Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-08-25
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a civil air defense door, including the door frame, and rotate the door leaf of connection on the door frame, set up the dead slot that runs through the door leaf bottom on the door leaf inboard, the embedded mounting box that is equipped with of dead slot, be equipped with the baffle of perpendicular to horizontal plane in the mounting box, the baffle divide into drive chamber and support chamber with the mounting box, be equipped with the lead screw in the mounting box, the lead screw is worn to establish baffle and both ends and is rotated and connect on the inner wall of mounting box, the lead screw is located and supports intracavity part and is equipped with reverse part of screw thread and derotation part, equal threaded connection has the nut seat in positive part and the derotation part, all rotate on the nut seat and be connected with the connecting rod, it is equipped with the backup pad of liftable to support the chamber bottom, the connecting rod is kept away from nut seat one end and all rotates and connects in. The utility model discloses when having the people's air defense door and being in the open mode, the effect of conveniently supporting it.

Description

Civil air defense door

Technical Field

The utility model belongs to the technical field of civil air defense equipment technique and specifically relates to a civil air defense door is related to.

Background

The civil air defense door is a door with a wartime protection function and arranged at a civil air defense passageway. At present, the civil air defense door leaf adopts the steel construction basically to through rotating shutting hand wheel, in order to open or close the civil air defense door, the operation is more time-consuming and energy-consuming, and because the weight of civil air defense door is great, so the door leaf is opened and close inconveniently. Therefore, when the civil air defense door is basically not used at ordinary times after being installed, the door leaf is in an opening state, and in order to prevent the hinged part of the door leaf and the door frame from deforming due to the overlarge self weight of the door leaf, the cushion block needs to be plugged under the door leaf to support the self weight of the door leaf. However, the cushion block is easy to move, so that the door leaf is not supported in place, or the hinged part is deformed and then the door leaf is pressed on the cushion block, and time and labor are wasted when the cushion block is required to be taken out.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a people's air defense door has the people's air defense door and when being in the open mode, conveniently carries out the effect that supports it.

The above object of the present invention can be achieved by the following technical solutions:

a civil air defense door comprises a door frame and a door leaf rotatably connected on the door frame, wherein the inner side of the door leaf is provided with a hollow groove penetrating through the bottom of the door leaf, a mounting box is embedded in the empty groove, a partition plate perpendicular to the horizontal plane is arranged in the mounting box, the mounting box is divided into a driving cavity and a supporting cavity by the partition plate, a lead screw is arranged in the mounting box, the lead screw penetrates through the partition plate, two ends of the lead screw are rotatably connected to the inner wall of the mounting box, the screw rod is provided with a forward rotation part and a backward rotation part with reverse threads at the inner part of the support cavity, the forward rotation part and the backward rotation part are both connected with a nut seat in a threaded manner, the nut seats are all rotatably connected with connecting rods, the bottom of the supporting cavity is provided with a liftable supporting plate, the connecting rod is far away from nut seat one end and all rotates to be connected in the backup pad, be equipped with the spacing subassembly of restriction nut seat pivoted and be used for driving lead screw pivoted drive assembly in the mounting box.

By adopting the technical scheme, the lead screw is rotationally connected in the mounting box, the mounting box comprises a driving cavity and a supporting cavity, the lead screw comprises a forward rotation part and a backward rotation part, the forward rotation part and the backward rotation part are both in threaded connection with a nut seat, the nut seat is rotationally connected with a connecting rod, the bottom of the supporting cavity is provided with a liftable supporting plate, the other end of the connecting rod is rotationally connected with the supporting plate, the mounting box is also internally provided with a limiting component for limiting the rotation of the nut seat and a driving component for driving the lead screw to rotate, the driving component drives the lead screw to rotate, the nut seat moves close to or away, the supporting plate correspondingly moves upwards or downwards, when the door leaf is in an opening state, the supporting plate is driven to descend to be, thereby play the effect of support to the door leaf, when needing to close the door leaf, the backup pad that rises can to reach when the people's air defense door is in the open mode, conveniently support its effect.

The utility model discloses further set up to: the drive assembly is including locating the worm wheel that the lead screw is located drive cavity inside part to and be used for driving worm wheel pivoted worm, the mounting box is equipped with and is used for covering the first apron that closes the drive cavity, the worm wears to establish first apron and rotates to be connected on the inner wall of drive cavity.

Through adopting above-mentioned technical scheme, drive assembly is including locating the worm wheel that the lead screw is located drive intracavity portion to and be used for driving worm wheel pivoted worm, rotate the worm and can drive the lead screw and rotate, thereby control the lift of backup pad.

The utility model discloses further set up to: the limiting part is a guide rod penetrating through the nut seat, and two ends of the guide rod are fixed on the side wall of the supporting cavity.

Through adopting above-mentioned technical scheme, under the effect of guide bar, nut seat can not take place to rotate, only carries out the slip that is close to or keeps away from.

The utility model discloses further set up to: two are no less than in the setting of backup pad.

Through adopting above-mentioned technical scheme, backup pad sets up two at least on the door leaf, improves the support capacity to the door leaf.

The utility model discloses further set up to: the inner wall of the mounting box is provided with a bearing, and the lead screw is rotatably connected to the inner wall of the mounting box through the bearing.

Through adopting above-mentioned technical scheme, the lead screw passes through the bearing and rotates to be connected on the inner wall of mounting box, and rotation efficiency is good, and connects stably.

The utility model discloses further set up to: the mounting box is provided with a second cover plate used for covering the supporting cavity, fastening bolts penetrate through the first cover plate and the second cover plate, and the first cover plate and the second cover plate are connected to the mounting box through the fastening bolts.

Through adopting above-mentioned technical scheme, first apron and second apron can be dismantled and connect on the mounting box, conveniently maintain and clear up inside.

The utility model discloses further set up to: and a hand wheel is arranged at one end of the worm extending out of the surface of the first cover plate.

Through adopting above-mentioned technical scheme, conveniently rotate convenient to use to the worm through the hand wheel.

To sum up, the utility model discloses a beneficial technological effect does:

1. through set up the backup pad that can go up and down on the door leaf, can support the door leaf with the backup pad decline when the door leaf is opened and support tightly in ground after, reduce the possibility that the door leaf takes place to warp.

2. Thereby drive the lead screw rotation through worm drive worm wheel pivoted mode to make the nut seat be close to each other or keep away from, reach the purpose that the control backup pad goes up and down.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view showing the structure inside the installation case of the present embodiment;

fig. 3 is an enlarged schematic view at a in fig. 2.

Description of reference numerals: 1. a door frame; 2. a door leaf; 3. an empty groove; 4. mounting a box; 5. a partition plate; 6. a drive chamber; 7. a support cavity; 8. a lead screw; 9. a forward rotation part; 10. a reverse rotation part; 11. a nut seat; 12. a connecting rod; 13. a support plate; 14. a drive assembly; 141. a worm gear; 142. a worm; 15. a guide bar; 16. a first cover plate; 17. a second cover plate; 18. a bearing; 19. fastening a bolt; 20. a handwheel.

Detailed Description

Example (b):

as shown in fig. 1 and 2, the civil air defense door comprises a door frame 1 and a door leaf 2 rotatably connected to the door frame 1, wherein a supporting plate 13 for supporting the door leaf 2 is arranged at the bottom of the door leaf 2.

As shown in fig. 2 and 3, a square empty groove 3 is formed in the inner side of the door leaf 2, the empty groove 3 penetrates through the bottom of the door leaf 2, a mounting box 4 is embedded in the empty groove 3, a partition plate 5 perpendicular to the ground is arranged in the mounting box 4, and the mounting box 4 is divided into a driving cavity 6 and a supporting cavity 7 by the partition plate 5. Install lead screw 8 in the mounting box 4, lead screw 8 runs through baffle 5, and both ends are rotated and are connected on the inner wall of mounting box 4, and lead screw 8 is located and is fixed with forward rotation portion 9 and derotation portion 10 on supporting the partly in chamber 7, and the screw of forward rotation portion 9 and derotation portion 10 sets up in the reverse direction, and equal threaded connection has nut seat 11 on forward rotation portion 9 and the derotation portion 10, rotatory lead screw 8, the motion that is close to or keeps away from will be done to two nut seats 11. Nut seat 11 is close to and all rotates on the one side of door leaf 2 bottom and is connected with connecting rod 12, and the bottom in support chamber 7 is located to backup pad 13, and the one end that nut seat 11 was kept away from to connecting rod 12 all rotates and connects in the upper surface of backup pad 13, and when nut seat 11 was close to each other, backup pad 13 will descend, until supporting in ground tightly to play the effect of support to door leaf 2, when nut seat 11 was kept away from each other, backup pad 13 will rise, thereby the operation of closing the door that can be normal. The mounting box 4 is also internally provided with a limiting piece for limiting the rotation of the nut seat 11 and a driving assembly 14 for driving the screw rod 8 to rotate. In order to improve the supporting effect for the door leaf 2, further, the number of the supporting plates 13 is not less than two.

As shown in fig. 3, the limiting member is a guide rod 15 penetrating through the nut seat 11, and two ends of the guide rod 15 are fixed on the side wall of the supporting cavity 7, so that the nut seat 11 cannot rotate, and the nut seat 11 is prevented from rotating in the rotation process of the lead screw 8.

As shown in fig. 2 and 3, the driving assembly 14 includes a worm wheel 141 disposed on a portion of the lead screw 8 located in the driving chamber 6, the worm wheel 141 is fixedly connected to the lead screw 8, and the driving assembly 14 further includes a worm 142 for driving the worm wheel 141 to rotate. Be equipped with on the mounting box 4 and be used for the first apron 16 that the lid closed drive chamber 6, first apron 16 is worn to establish by worm 142, rotate to connect on the inner wall of drive chamber 6, the gear intermeshing of worm wheel 141 and worm 142, it is rotatory to rotate worm 142 and drive worm wheel 141 to it takes place to rotate to drive lead screw 8, and is further, in order to improve lead screw 8's rotation efficiency, install bearing 18 on the inner wall of mounting box 4, lead screw 8 passes through bearing 18 swivelling joint in mounting box 4. Preferably, a hand wheel 20 is fixed at one end of the worm 142 penetrating the first cover plate 16, so as to facilitate rotation. In order to conveniently maintain and clean the inside of the mounting box 4, the mounting box 4 is detachably provided with a second cover plate 17, the first cover plate 16 and the second cover plate 17 are provided with fastening bolts 19 in a penetrating manner, and the first cover plate 16 and the second cover plate 17 are fixed on the mounting box 4 through the fastening bolts 19 and are convenient to detach.

The use principle is as follows: when the door leaf 2 is in the state of opening, rotate the hand wheel 20 to descend in with the door leaf 2 with backup pad 13, until supporting tightly in ground, play the effect of support to door leaf 2, when needing to close door leaf 2, rotate the hand wheel 20, withdraw the backup pad 13 in the mounting box 4 can.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a people's air defense door, includes door frame (1) to and rotate door leaf (2) of connection on door frame (1), its characterized in that: the door is characterized in that an empty groove (3) penetrating through the bottom of the door leaf (2) is formed in the inner side of the door leaf (2), a mounting box (4) is embedded in the empty groove (3), a partition plate (5) perpendicular to the horizontal plane is arranged in the mounting box (4), the mounting box (4) is divided into a driving cavity (6) and a supporting cavity (7) by the partition plate (5), a lead screw (8) is arranged in the mounting box (4), the lead screw (8) penetrates through the partition plate (5) and is rotatably connected to the inner wall of the mounting box (4), a forward rotating part (9) and a reverse rotating part (10) with reverse threads are arranged on the inner part of the supporting cavity (7) of the lead screw (8), nut seats (11) are in threaded connection with the forward rotating part (9) and the reverse rotating part (10), connecting rods (12) are in rotational connection with the nut seats (11), and a liftable supporting plate (13) is arranged at the bottom of the supporting, one end, far away from the nut seat (11), of the connecting rod (12) is rotatably connected to the supporting plate (13), and a limiting part for limiting the rotation of the nut seat (11) and a driving assembly (14) for driving the screw rod (8) to rotate are arranged in the mounting box (4).

2. A civil air defense door according to claim 1, wherein: drive assembly (14) are located drive chamber (6) inside part's worm wheel (141) including locating lead screw (8) to and be used for driving worm wheel (141) pivoted worm (142), mounting box (4) are equipped with and are used for covering first apron (16) that close drive chamber (6), worm (142) are worn to establish first apron (16) and are rotated and connect on the inner wall of drive chamber (6).

3. A civil air defense door according to claim 1, wherein: the limiting part is a guide rod (15) penetrating through the nut seat (11), and two ends of the guide rod (15) are fixed on the side wall of the supporting cavity (7).

4. A civil air defense door according to claim 3, wherein: the number of the supporting plates (13) is not less than two.

5. A civil air defense door according to claim 2, wherein: the inner wall of the mounting box (4) is provided with a bearing (18), and the lead screw (8) is rotatably connected to the inner wall of the mounting box (4) through the bearing (18).

6. A civil air defense door according to claim 2, wherein: the mounting box (4) is provided with a second cover plate (17) used for covering the supporting cavity (7), fastening bolts (19) are arranged on the first cover plate (16) and the second cover plate (17) in a penetrating mode, and the first cover plate (16) and the second cover plate (17) are connected onto the mounting box (4) through the fastening bolts (19).

7. A civil air defense door according to claim 2, wherein: and a hand wheel (20) is arranged at one end of the worm (142) extending out of the surface of the first cover plate (16).