CN215369281U

CN215369281U - Civil air defense door locking and positioning device

Info

Publication number: CN215369281U
Application number: CN202121822998.5U
Authority: CN
Inventors: 牟松超; 黄文浩; 董辉; 时广会
Original assignee: Yantai Guangyuan Civil Air Defense Equipment Co ltd
Current assignee: Yantai Guangyuan Civil Air Defense Equipment Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-12-31
Anticipated expiration: 2031-08-05

Abstract

The utility model relates to a people's air defense door locking positioner, belong to the technical field of people's air defense door, a door body, the cavity has been seted up to the door body, the door body rotates and is connected with the riser that is arranged in the cavity, riser fixedly connected with diaphragm, the horizontal groove of intercommunication cavity is seted up to door body level, sliding connection has the release link in the horizontal groove, the vertical groove has been seted up to the door body is vertical, sliding connection has the gag lever post in the vertical groove, the lateral wall of the door body is worn out to release link one end, the other end and riser butt, door body fixedly connected with is located the spring in the cavity, the one end and the diaphragm fixed connection of spring, the other end and door body fixed connection, the gag lever post is close to one side fixedly connected with limiting plate of riser, when the spring is in natural state, the riser is parallel with the gag lever post. This application has the convenience and locks the door body, makes the more convenient effect of operation.

Description

Civil air defense door locking and positioning device

Technical Field

The application relates to the field of civil air defense doors, in particular to a locking and positioning device for a civil air defense door.

Background

The civil air-tight door is a door of an entrance and an exit of a civil protection project, and is simply a door with a protection function when people enter an area door with protection measures under natural disasters such as war, earthquake and the like.

A chinese patent with publication number CN210439837U discloses a locking device for a civil air defense door capable of resisting large impact, which comprises a hand wheel, a transverse link mechanism connected with the hand wheel through a connecting rod or a gear assembly, and two vertical link mechanisms with the middle parts connected with the transverse link mechanism, wherein the upper and lower ends of each vertical link mechanism are fixedly connected with a lock pin, the lock pins are distributed in a rectangular shape, the locking end of each lock pin is in a pointed shape and is composed of at least two opposite inclined planes, and the lock pins at two opposite angles have the same shape as the other two lock pins at opposite angles, and the central line at the top is a right angle; a guide reinforcing seat is fixedly installed at a position close to the end of the lock pin, a through hole coaxial with the lock pin is formed in the guide reinforcing seat, and the lock pin can slide along the through hole and is matched with a pin seat installed on a door frame.

Aiming at the related technologies, the inventor thinks that the defects that locking needs to be carried out by rotating a hand wheel every time of locking, and the operation is troublesome exist.

SUMMERY OF THE UTILITY MODEL

For the convenience to the door body lock, make the operation more convenient, this application provides a people's air defense door locking positioner.

The application provides a civil air defense door locking positioner adopts following technical scheme:

a civil air defense door locking and positioning device comprises a door body, wherein a cavity is formed in the door body, the door body is rotatably connected with a vertical plate positioned in the cavity, the vertical plate is fixedly connected with a transverse plate vertical to the vertical plate, the door body is horizontally provided with a horizontal groove communicated with the cavity, a reset rod is slidably connected in the horizontal groove, the door body is vertically provided with a vertical groove vertical to the horizontal groove, a limiting rod is slidably connected in the vertical groove, one end of the vertical groove is communicated with the cavity, the other end of the vertical groove penetrates through the side wall of the door body, one end of the reset rod penetrates through the side wall of the door body, the other end of the reset rod is abutted against the vertical plate, the door body is fixedly connected with a spring positioned in the cavity, one end of the spring is fixedly connected with the transverse plate, the other end of the spring is fixedly connected with the door body, one side, close to the vertical plate, of the limiting rod is fixedly connected with a limiting plate, and the spring is in a natural state, the vertical plate is parallel to the limiting rod.

Through adopting the above technical scheme, when the door body is opened, the spring promotes the riser and rotates, and then it inserts and establishes between two adjacent limiting plates to drive the diaphragm, the diaphragm is spacing to the limiting plate this moment, and then it is spacing to the gag lever post, reduce the possibility that the gag lever post stretches out a lateral wall, the user rotates the door body when closing the body, along with the closing release link of the body slides in the horizontal groove, the release link promotes the riser and rotates compression spring, and then make the diaphragm keep away from the limiting plate, then the gag lever post slides in vertical groove, then the vertical groove of gag lever post roll-off inserts and establishes in the predetermined spacing hole, need not insert the gag lever post deliberately and establish in the predetermined spacing hole, the convenience is locked to the door body, it is more convenient to make the operation.

Optionally, the longitudinal section of the limiting plate is a right triangle, the side wall of the limiting plate where a right-angle side is located is fixedly connected with the limiting rod, and one side of the limiting plate inclined surface, which is far away from the limiting rod, inclines towards the direction in which the limiting rod extends out of the door body.

Through adopting above-mentioned technical scheme, when the gag lever post removed to being close to cavity one side, the inclined plane of limiting plate can continue to remove when diaphragm and limiting plate butt, and when the gag lever post removed to the one side of keeping away from the cavity simultaneously, the limiting plate right-angle side place the face can with the diaphragm butt, and then reduce the possibility that the gag lever post removed.

Optionally, the diaphragm includes plate body and ball, a plurality of resistance-reducing grooves have been seted up on the plate body, the ball is located in the resistance-reducing groove, when the spring was in tensile state, the right-angle limit place plane butt of ball and limiting plate.

Through adopting above-mentioned technical scheme, the diaphragm is contradicted with the limiting plate, and when the release link promoted the riser and drives the diaphragm and remove, the ball can roll in drag reduction groove, can reduce the frictional force between plate body and the limiting plate, and then makes the limiting plate separation that the diaphragm can be more smooth, reduces the wearing and tearing between diaphragm and the limiting plate simultaneously, improves life.

Optionally, an inclined plane is arranged on one side, away from the cavity, of the reset rod, and one side, close to the closing direction of the door body, of the inclined plane is inclined towards the direction close to the door body.

Through adopting above-mentioned technical scheme, the inclined plane can make diaphragm and wall after to support, makes that the diaphragm can be better slide in the horizontal slot, improves the gliding smoothness nature of diaphragm.

Optionally, the inclined surface is provided with a plurality of grooves, and balls are placed in the grooves.

Through adopting above-mentioned technical scheme, the ball can roll in the recess, can reduce the frictional force between inclined plane and the wall, and then can make things convenient for the diaphragm to slide in the horizontal slot more.

Optionally, the door body is provided with a tension spring located in the cavity, one end of the tension spring is fixedly connected with one end, close to the cavity, of the limiting rod, the other end of the tension spring is fixedly connected with the door body, and when the tension spring is in a natural state, one end, far away from the cavity, of the limiting rod extends out of the vertical groove.

Through adopting above-mentioned technical scheme, the extension spring can spur the gag lever post and make the gag lever post stretch out vertical groove, and then improves the spacing stability of gag lever post.

Optionally, the door body is rotatably connected with a spool located in the cavity, a steel wire rope is wound on the spool, one end of the steel wire rope is fixedly connected with the spool, the other end of the steel wire rope is fixedly connected with one end, close to the cavity, of the limiting rod, a turntable is rotatably connected to the surface of the door body, and the turntable is coaxially and fixedly connected with the spool.

Through adopting above-mentioned technical scheme, the user can drive the I-shaped wheel through rotating the carousel and rotate, and then drives wire rope and twine on the I-shaped wheel, and wire rope drives the gag lever post and removes to one side that is close to the cavity, and then pulls out the gag lever post from the spacing hole of predetermineeing, conveniently opens the door.

Optionally, the coaxial fixedly connected with gear of carousel, door body surface rotates and is connected with spacing, one side fixedly connected with that spacing is close to the gear is used for the spacing stopper of counter gear, the one end that spacing was kept away from to carousel rolling wire rope's direction slope to the stopper.

Through adopting above-mentioned technical scheme, the user rotates the carousel to rolling wire rope's direction and drives gear revolve, and stopper and gear conflict this moment can guarantee the normal rotation of gear, can reduce the possibility of gear reversal simultaneously, and then reduces the possibility that the gag lever post falls after rising.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the limiting rod, the vertical groove, the reset rod, the horizontal groove, the spring, the transverse plate and the vertical plate, the limiting rod does not need to be inserted into a preset limiting hole intentionally, the door body is convenient to lock, and the operation is more convenient;

2. through the arrangement of the balls and the round beads, the transverse plate and the vertical plate can limit the limiting rod more conveniently, and the movement is smoother;

3. through the setting of gear, spacing and stopper, can guarantee the stability that the stopper removed to being close to the cavity direction.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present application;

FIG. 2 is a schematic view showing the overall structure of a lock member in the embodiment of the present application;

FIG. 3 is a schematic view of the overall structure of a turntable in the embodiment of the present application;

fig. 4 is an enlarged schematic view of a portion a of fig. 1.

Description of reference numerals: 1. a door body; 11. a cavity; 12. a horizontal groove; 13. a vertical slot; 14. an arc-shaped slot; 2. a reset lever; 21. a bevel; 22. a ball bearing; 3. a vertical plate; 31. a transverse plate; 32. a ball; 33. a spring; 34. a rotating shaft; 35. a roller; 36. a plate body; 4. a limiting rod; 41. a tension spring; 42. a limiting plate; 5. a turntable; 51. a disc; 52. a connecting shaft; 53. a gear; 54. a spool; 55. a wire rope; 6. a limiting strip; 61. a limiting block; 62. a slider; 63. and rotating the shaft.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses people's air defense door locking positioner. Referring to fig. 1, the civil air defense door locking and positioning device comprises a door body 1 in a rectangular parallelepiped shape. The door body 1 is provided with a cuboid cavity 11 near the center, and a locking component is arranged in the cavity 11. The door body 1 is connected with the wall rotation, has seted up spacing hole on the wall simultaneously, and when the door body 1 closed, locking part inserted and establishes in spacing hole, and then locks spacingly to the door body 1.

Referring to fig. 1, the locking part includes a limiting rod 4, a vertical groove 13 is vertically formed in the door body 1, one end of the vertical groove 13 is communicated with the cavity 11, and the other end of the vertical groove extends towards the lower surface of the door body 1 and penetrates through the lower surface of the door body 1. The limiting rod 4 is cuboid and is connected with the vertical groove 13 in a sliding mode. And the length of the limiting rod 4 is greater than that of the vertical groove 13. Meanwhile, the door body 1 is provided with a pulling mechanism, and the pulling mechanism is connected with the limiting rod 4. In the door closing process, a user can operate the pulling mechanism to pull the limiting rod 4 to slide in the vertical groove 13 to one side close to the cavity 11, when the bottom end of the limiting rod 4 is located in the vertical groove 13, the door body 1 is closed, then the limiting rod 4 is inserted into the limiting hole, and the door body 1 is locked.

Referring to fig. 1 and 2, the pulling mechanism includes a turntable 5 and a spool 54. The rotating disc 5 comprises a disc 51 and a connecting shaft 52, the disc 51 and the connecting shaft 52 are coaxially and fixedly connected, and the connecting shaft 52 penetrates through the door body 1 and is rotatably connected with the door body 1. An end of the connecting shaft 52 remote from the disc 51 extends into the cavity 11 and is rotatably connected to the inner wall of the cavity 11. The spool 54 is located in the cavity 11 and is coaxially and fixedly connected with the connecting shaft 52. A steel wire rope 55 is wound on the spool 54, one end of the steel wire rope 55 is fixedly connected with the spool 54, and the other end of the steel wire rope 55 is fixedly connected with the top end of the limiting rod 4. The user rotates the disc 51 to drive the connecting shaft 52 to rotate, the connecting shaft 52 drives the spool 54 to rotate, so that the wire rope 55 is wound around the spool 54, and the wire rope 55 drives the limiting rod 4 to slide in the vertical groove 13.

Referring to fig. 2, a gear 53 is coaxially and fixedly connected to the connecting shaft 52, and the gear 53 is located between the door body 1 and the disc 51. The surface of the door body 1 is rotatably connected with a limiting strip 6, one end of the limiting strip 6 is fixedly connected with a rotating shaft 63, a rotating hole is formed in the surface of the door body 1, and the rotating shaft 63 is rotatably connected with the rotating hole. The other end of the limiting strip 6 is fixedly connected with a limiting block 61, and one end, far away from the limiting strip 6, of the limiting block 61 inclines towards the direction in which the disc 51 winds the steel wire rope 55. When the user rotated disc 51 rolling wire rope 55, the user rotated spacing 6, made stopper 61 insert establish between two adjacent teeth of a cogwheel of gear 53, the user rotated disc 51 and drives gear 53 and rotate, and then drives spacing 6 rebound, when the user loosened disc 51, stopper 61 can be spacing with the teeth of a cogwheel that is located stopper 61 top gear 53 to reduce the possibility that gear 53 overturned, guarantee gag lever post 4's stability.

Referring to fig. 3, an arc-shaped groove 14 is formed in the door body 1, the limiting strip 6 is fixedly connected with a sliding block 62, and the sliding block 62 is slidably connected in the arc-shaped groove 14. The radius of the arc-shaped slot 14 is equal to the distance from the rotating shaft 63 to the slider 62. When the sliding block 62 slides to the end of the arc-shaped slot 14 close to the gear 53, the stop 61 interferes with the gear 53. When the limiting rod 4 is not required to be limited, the user rotates the limiting strip 6 to enable the sliding block 62 to slide to one end away from the gear 53 along the arc-shaped groove 14, the arc-shaped groove 14 can guide the limiting strip 6, and meanwhile the limiting strip 6 is limited.

Referring to fig. 1 and 2, the door body 1 is fixedly connected with a tension spring 41 located in the cavity 11, the tension spring 41 is parallel to the limiting rod 4, one end of the tension spring 41 is fixedly connected with one end of the limiting rod 4 close to the cavity 11, and the other end is fixedly connected with the bottom surface of the cavity 11. When the user pulling gag lever post 4 removed to one side near cavity 11, extension spring 41 atress extension, withdraws the power of applying force to gag lever post 4 when the user, and extension spring 41 resumes to natural state gradually, then extension spring 41 pulling gag lever post 4 inserts fast and establishes in the spacing hole, guarantees the stability of connecting.

Referring to fig. 1 and 2, a limit plate 42 is fixedly connected to a side of the limit rod 4 away from the tension spring 41, and the limit plate 42 is located in the cavity 11. The rotating shaft 34 parallel to the connecting shaft 52 is rotatably connected in the cavity 11, the rotating shaft 34 is fixedly connected with a vertical plate 3, the vertical plate 3 extends to one side close to the bottom surface of the cavity 11, one end of the vertical plate 3, far away from the rotating shaft 34, is fixedly connected with a transverse plate 31, and the transverse plate 31 is perpendicular to the vertical plate 3. When the bottom end of the limiting rod 4 is completely contracted into the vertical groove 13, the vertical plate 3 is parallel to the limiting rod 4, the upper surface of the transverse plate 31 is abutted to the lower surface of the limiting plate 42, the limiting rod 4 is limited, and the possibility of downward movement of the limiting rod 4 is reduced.

Referring to fig. 1 and 2, the longitudinal section of the limiting plate 42 is a right triangle, and a side wall of the limiting plate 42 where a right-angle side is located is fixedly connected with the limiting rod 4, and one side of the inclined surface 21 of the limiting plate 42, which is far away from the limiting rod 4, inclines towards the direction in which the limiting rod 4 extends out of the door body 1. The gag lever post 4 is to contracting in the cavity 11, after the inclined plane 21 of diaphragm 31 and limiting plate 42 supports, along with gag lever post 4 continues the rebound, diaphragm 31 moves along limiting plate 42's inclined plane 21, and then make riser 3 revolve 34 rotations, when the bottom surface of limiting plate 42 highly is higher than diaphragm 31 when high, under the effect of gravity, riser 3 rotates to one side that is close to gag lever post 4, and then make diaphragm 31 move the below of limiting plate 42, after the user withdraws the power to gag lever post 4, gag lever post 4 downshifts, the lower surface of limiting plate 42 conflicts with the upper surface of diaphragm 31 this moment, and then spacing to gag lever post 4, guarantee the stability of gag lever post 4.

Referring to fig. 1 and 2, the door body 1 is fixedly connected with a spring 33 positioned in the cavity 11, and the spring 33 is positioned on one side of the vertical plate 3 away from the transverse plate 31. One end of the spring 33 is fixedly connected with the side wall of the cavity 11, and the other end is fixedly connected with the transverse plate 31. When riser 3 revolves axle 34 and rotates to one side of keeping away from limiting plate 42, spring 33 compresses this moment, and when the force of exerting the force to riser 3, spring 33 resumes natural state gradually, and then promotes riser 3 and removes to the direction that is close to limiting plate 42, and final montant is parallel with gag lever post 4, and the upper surface of diaphragm 31 is contradicted with limiting plate 42's lower surface, can guarantee riser 3 and diaphragm 31 to the spacing stability of limiting plate 42.

Referring to fig. 1 and 4, a roller 35 is rotatably connected to the bottom end of the transverse plate 31 near the side of the stop lever 4. When the inclined plane 21 of limiting plate 42 and diaphragm 31 were close to each other, gyro wheel 35 contradicted with the inclined plane 21 of limiting plate 42, and gyro wheel 35 rotated this moment, can reduce the frictional force between diaphragm 31 and the limiting plate 42, can make the more smooth rotation of horizontal pole, guarantees spacing smoothness nature.

Referring to fig. 1 and 4, the cross plate 31 includes a plate body 36 and a ball 32. The plate body 36 is vertically and fixedly connected with the transverse plate 31, a plurality of resistance reduction grooves are formed in the upper surface of the plate body 36, and the round beads 32 are placed in the resistance reduction grooves. The drag reduction groove is spherical, the diameter of the drag reduction groove is equal to that of the ball 32, the opening of the drag reduction groove is smaller than that of the ball 32, and the ball 22 protrudes out of the upper surface of the plate body 36. When needing gag lever post 4 to moving to the one side of keeping away from cavity 11, riser 3 rotates to the one side of keeping away from gag lever post 4, and plate body 36 removes along with riser 3 this moment, and ball 32 contradicts with limiting plate 42's lower surface simultaneously, and the in-process that plate body 36 removed, ball 32 roll in the drag reduction groove, can reduce the frictional force between plate body 36 and the limiting plate 42, make diaphragm 31 can be easier break away from with limiting plate 42.

Referring to fig. 1 and 2, the door body 1 is provided with a horizontal groove 12, one end of the horizontal groove 12 is communicated with the cavity 11, and the other end penetrates through the side wall of the door body 1. The horizontal groove 12 is perpendicular to the vertical groove 13, and the horizontal groove 12 is located above the limiting rod 4. Horizontal dashes sliding connection has release link 2, and the one end of release link 2 is contradicted with the one side that the spring 33 was kept away from to the horizontal pole, and the other end extends the door body 1. In the door closing process, the end of the reset rod 2 far away from the spring 33 is extruded by the wall, the reset rod 2 slides to one side close to the spring 33 in the horizontal groove 12, then the vertical plate 3 is pushed to rotate to one side far away from the limiting rod 4, then the transverse plate 31 is separated from the limiting plate 42, at the moment, the limiting rod 4 slides to one side far away from the cavity 11, and finally the limiting hole is inserted.

Referring to fig. 1 and 2, an inclined surface 21 is disposed at an end of the reset lever 2 away from the cavity 11, and a side of the inclined surface 21 close to the closing of the door body 1 is inclined toward a direction close to the door body 1. In the process that the door body 1 is closed, the inclined surface 21 is abutted to the wall, so that the reset rod 2 can slide in the horizontal groove 12 more smoothly, and the door closing effect is ensured.

Referring to fig. 2, the inclined surface 21 is formed with a plurality of grooves, and the balls 22 are disposed in the grooves. The groove is spherical, the diameter of the groove is equal to that of the ball 22, and the opening diameter of the groove is smaller than that of the ball 22. When the inclined plane 21 is abutted against the wall, the balls 22 roll in the grooves, so that the friction force between the inclined plane 21 and the wall can be reduced, and the reset rod 2 can slide more smoothly.

The implementation principle of the civil air defense door locking and positioning device in the embodiment of the application is as follows: the user rotates spacing 6 and makes stopper 61 be close to gear 53, then rotate carousel 5 and drive the I-shaped wheel 54 and rotate, wind wire rope 55 on I-shaped wheel 54, then stimulate gag lever post 4 and move to the one side that is close to cavity 11, then limiting plate 42 promotes diaphragm 31 and moves, and then drive riser 3 and rotate, when limiting plate 42 is higher than diaphragm 31, spring 33 promotes riser 3 and then makes diaphragm 31 spacing to limiting plate 42, then make stopper 61 keep away from gear 53, the user closes the door, then release link 2 slides to the one side that is close to cavity 11 in the extrusion of wall, promote the montant and rotate, make diaphragm 31 keep away from limiting plate 42, then gag lever post 4 slides to the one side that keeps away from cavity 11 in vertical groove 13 under the effect of extension spring 41, and then insert and establish in the spacing hole, thereby lock the door.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a people's air defense door locking positioner, includes door body (1), its characterized in that: the door body (1) is provided with a cavity (11), the door body (1) is rotatably connected with a vertical plate (3) positioned in the cavity (11), the vertical plate (3) is fixedly connected with a transverse plate (31) vertical to the vertical plate (3), the door body (1) is horizontally provided with a horizontal groove (12) communicated with the cavity (11), a reset rod (2) is connected in the horizontal groove (12) in a sliding manner, the door body (1) is vertically provided with a vertical groove (13) vertical to the horizontal groove (12), a limiting rod (4) is connected in the vertical groove (13) in a sliding manner, one end of the vertical groove (13) is communicated with the cavity (11), the other end of the vertical groove runs through the side wall of the door body (1), one end of the reset rod (2) penetrates through the side wall of the door body (1), the other end of the reset rod is abutted to the vertical plate (3), the door body (1) is fixedly connected with a spring (33) positioned in the cavity (11), one end and diaphragm (31) fixed connection of spring (33), the other end and the door body (1) fixed connection, one side fixedly connected with limiting plate (42) that gag lever post (4) are close to riser (3), when spring (33) is in natural state, riser (3) are parallel with gag lever post (4).

2. The civil air defense door locking and positioning device of claim 1, wherein: the longitudinal section of the limiting plate (42) is a right-angled triangle, the side wall where a right-angle side of the limiting plate (42) is located is fixedly connected with the limiting rod (4), and one side of the limiting plate (42) inclined plane (21) far away from the limiting rod (4) inclines towards the direction that the limiting rod (4) stretches out of the door body (1).

3. The civil air defense door locking and positioning device of claim 1, wherein: diaphragm (31) is including plate body (36) and ball (32), a plurality of resistance reduction grooves have been seted up on plate body (36), during resistance reduction groove was located in ball (32), when spring (33) were in tensile state, ball (32) and limiting plate (42)'s right angle limit place plane butt.

4. The civil air defense door locking and positioning device of claim 1, wherein: one side of the reset rod (2) far away from the cavity (11) is provided with an inclined plane (21), and one side of the inclined plane (21) close to the closing direction of the door body (1) inclines towards the direction close to the door body (1).

5. The civil air defense door locking and positioning device of claim 4, wherein: the inclined plane (21) is provided with a plurality of grooves, and balls (22) are placed in the grooves.

6. The civil air defense door locking and positioning device of claim 1, wherein: the utility model discloses a refrigerator door, including door body (1), one end and gag lever post (4), the one end of extension spring (41) is close to the one end fixed connection of cavity (11), the other end and the door body (1) fixed connection of extension spring (41), when extension spring (41) is in natural state, vertical groove (13) are stretched out to the one end that cavity (11) were kept away from in gag lever post (4).

7. The civil air defense door locking and positioning device of claim 1, wherein: the door body (1) is rotatably connected with a spool (54) located in the cavity (11), a steel wire rope (55) is wound on the spool (54), one end of the steel wire rope (55) is fixedly connected with the spool (54), the other end of the steel wire rope is fixedly connected with one end, close to the cavity (11), of the limiting rod (4), the surface of the door body (1) is rotatably connected with a turntable (5), and the turntable (5) is coaxially and fixedly connected with the spool (54).

8. The civil air defense door locking and positioning device of claim 7, wherein: carousel (5) coaxial fixedly connected with gear (53), the surface rotation of the door body (1) is connected with spacing (6), one side fixedly connected with that spacing (6) are close to gear (53) is used for spacing stopper (61) of counter gear (53), the one end that spacing (6) were kept away from in stopper (61) is to the direction slope of carousel (5) rolling wire rope (55).