CN213175363U

CN213175363U - Movable track type closed room door

Info

Publication number: CN213175363U
Application number: CN202021422848.0U
Authority: CN
Inventors: 桂洪; 时玉科; 桂兵
Original assignee: Guangdong Yatu Technology Co ltd
Current assignee: Guangdong Yatu Technology Co ltd
Priority date: 2020-07-18
Filing date: 2020-07-18
Publication date: 2021-05-11
Anticipated expiration: 2030-07-18

Abstract

The utility model belongs to the technical field of secret room safety device and specifically relates to a remove close room door of rail mounted is related to, it includes the door frame, be provided with the door leaf on the door frame, the top of door leaf is provided with and is used for making the interior actuating mechanism that moves back in the door leaf, interior actuating mechanism that moves back includes the support, the both ends of support are provided with the mount that is used for connecting the wall body top surface respectively, the last sliding connection of support has the connecting plate, the both ends of connecting plate with the upper end fixed connection of door leaf, be provided with on the support with the first motor that the control box electricity is connected, be provided with the lead screw on the output shaft of first motor, be provided with on the connecting plate with lead screw thread fit's slider, still be provided with on the door leaf and be used for locking or unblock the door leaf with the locking. This application has the effect that the person of facilitating the use is to the use of secret room door.

Description

Movable track type closed room door

Technical Field

The application relates to the field of secret room safety devices, in particular to a movable rail type secret room door.

Background

The door means a doorway of a building or a device openable and closable by being installed in the doorway. The door has many kinds, and can be mainly divided into a gate, an entrance door, an indoor door, an explosion-proof door, an anti-explosion door, a fireproof door and the like. With the development and rapid change of the current economic society, the demands of people are continuously changed, and the secret room becomes the mainstream of decoration of people more and more. The door of the secret chamber is used as a main structure of the secret chamber, and the tightness, the stability and the convenience in opening and closing are important indexes for measuring the concealment of the secret chamber.

In the prior art, the strength of a secret room door is usually adopted by a steel structure for ensuring the strength of a door body, an outer door of the secret room door cannot be effectively moved when being pushed, cannot form better protection with an inner door, the secret effect cannot be improved to a certain degree, and the secret room door can be easily moved due to external force when being closed and opened, so that inconvenience is brought to a user.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the use of user to secret room door, this application provides a remove close room door of rail mounted.

The application provides a remove close room door of rail mounted adopts following technical scheme:

a movable track type secret room door comprises a door frame, wherein a door leaf is arranged on the door frame, an inward-moving driving mechanism used for enabling the door leaf to move inward is arranged above the door leaf, a locking structure used for locking or unlocking the door leaf and the door frame is further arranged on the door leaf, and a control box is arranged on the door frame.

By adopting the technical scheme, when the door leaf unlocking device is used, the door leaf is unlocked by controlling the locking structure through the control box, and then the inward-retreating driving mechanism is controlled to enable the door leaf to retreat inwards, so that the door leaf is opened; on the contrary, the inward-moving driving mechanism is controlled to enable the door leaf to be close to the door frame, so that the door leaf is closed, and the door leaf is locked by the locking structure, so that a user can use the secret room door conveniently.

Preferably, the inward-moving driving mechanism comprises a support, two ends of the support are respectively provided with a fixing frame used for being connected with the top surface of the wall body, the support is connected with a connecting plate in an upward sliding manner, two ends of the connecting plate are fixedly connected with the upper end of the door leaf, the support is provided with a first motor electrically connected with the control box, an output shaft of the first motor is provided with a lead screw, and the connecting plate is provided with a sliding block in threaded fit with the lead screw.

By adopting the technical scheme, when the door leaf is opened, the first motor is started through the control box, the screw rod rotates, and the sliding block drives the connecting plate to move, so that the door leaf connected to the connecting plate is opened; when the door leaf is closed, the reverse operation can be carried out, so that the opening and closing of the door leaf can be conveniently completed through the forward and reverse rotation of the first motor.

Preferably, the bracket is provided with a first proximity switch for feeding back and stopping the first motor signal when the door leaf is completely closed and a second proximity switch for feeding back and stopping the first motor signal when the door leaf is completely opened at intervals along the retraction path direction of the door leaf, one side of the slider is provided with an induction sheet, and the first proximity switch and the second proximity switch are both electrically connected with the control box.

By adopting the technical scheme, when the induction sheet approaches the second proximity switch in the opening process of the door leaf, the second proximity switch feeds back a signal for stopping the first motor, and the control box controls the first motor to stop; in the door leaf closing process, when the response piece was close first proximity switch, the signal of first motor was stopped in the feedback of first proximity switch, and the first motor of control box control stops, so, when opening or closing the door leaf, first motor can both in time stop, avoids first motor idle running, simultaneously through control box integrated control, has improved the intellectuality of secret room door.

Preferably, two third proximity switches for feeding back and decelerating the signal of the first motor are arranged between the first proximity switch and the second proximity switch, one of the third proximity switches is close to the first proximity switch, the other one is close to the second proximity switch, and the third proximity switch is electrically connected with the control box.

Through adopting above-mentioned technical scheme, at the door leaf open or close the in-process, when the response piece is close third proximity switch, the signal of first motor of third proximity switch feedback speed reduction to make the moving speed of door leaf reduce, so, avoid the door leaf because inertia and with the doorframe bump, thereby improve the durability of door leaf.

Preferably, the support is provided with a sliding rail along the inward-retreating path of the door leaf, and the side of the connecting plate close to the support is provided with a sliding sleeve matched with the sliding rail in a sliding manner.

Through adopting above-mentioned technical scheme, make the connecting plate more smooth when removing through slide rail cooperation sliding sleeve, maximum load when reducing first motor and driving the door leaf.

Preferably, the locking structure comprises a second motor vertically arranged on the inner side of the door leaf, a gear is arranged on an output shaft of the second motor, a first moving frame and a second moving frame are arranged on two sides of the gear, the first moving frame comprises a first driving rod, the second moving frame comprises a second driving rod, the first driving rod and the second driving rod are arranged on the side face, close to the gear, of the first driving rod and are meshed with the gear, inserting grooves are formed in the inner side faces, opposite to the door frame, of the door frame, one ends, far away from the gear, of the first driving rod and one ends, far away from the gear, of the second driving rod are respectively inserted into the inserting grooves of the door frame, and a stabilizing structure for stabilizing the first moving frame and the second moving frame is further arranged on the door leaf.

By adopting the technical scheme, when the door leaf is unlocked, the second motor is started, the gear rotates and drives the first moving frame and the second moving frame to approach each other, so that the first driving rod and the second driving rod leave the insertion groove, and the door leaf is unlocked; when the door leaf is locked, the reverse operation can be carried out, so that the door leaf is conveniently unlocked or locked by utilizing the second motor.

Preferably, the stabilizing structure comprises a stabilizing pipe sleeved on the first driving rod and the second driving rod, the stabilizing pipe is fixedly connected to the door leaf, the stabilizing pipe is close to one end of the gear teeth, the first driving rod and the second driving rod are far away from one end of the gear, a first butt joint rod and a second butt joint rod are respectively arranged at one end of the gear, the first butt joint rod and the second butt joint rod are close to the side surfaces of the gear teeth, a plurality of first sliding rods and a plurality of second sliding rods are respectively arranged on the side surfaces of the gear teeth, sliding grooves are respectively formed in the first sliding rods and the second sliding rods, and fixing rods penetrating through the sliding grooves are arranged on the door leaf.

Through adopting above-mentioned technical scheme, the setting up of stabilizator pipe makes first actuating lever and second actuating lever can not break away from the gear in the removal, and the setting up of first pole and the second pole that slides makes first removal frame and second removal frame more stable when removing.

Preferably, a fourth proximity switch for feeding back and stopping a second motor signal when the locking structure unlocks the door leaf is arranged on the door leaf, the fourth proximity switch is located at one end, close to the gear, of the second sliding rod, a fifth proximity switch for feeding back and stopping the second motor signal when the locking structure locks the door leaf is further arranged on the door leaf, an induction block is arranged at a position, close to the middle of the first sliding rod, the fifth proximity switch is close to one end, far away from the gear, of the induction block, and the fourth proximity switch and the fifth proximity switch are both electrically connected with the control box.

By adopting the technical scheme, when the door leaf is unlocked, the inserting rod is separated from the inserting groove, when one end of the second sliding rod, which is far away from the second butting rod, approaches the fourth proximity switch, the fourth proximity switch feeds back a signal for stopping the second motor, and the control box controls to stop the second motor; when locking the door leaf, the in-process of inserting the inserting groove of inserted bar, when the one end that the gear was kept away from to the response piece was close fifth proximity switch, the signal of second motor was stopped in the feedback of fifth proximity switch, and control box control stops the second motor, so, when locking or unblock door leaf, the second motor can both in time stop, avoids the idle running of second motor, simultaneously through control box integrated control, has improved the intellectuality of secret room door.

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

1. when the door is used, the locking structure is controlled by the control box to unlock the door leaf, and then the inward-moving driving mechanism is controlled to enable the door leaf to move back inwards, so that the door leaf is opened; on the contrary, the inward-moving driving mechanism is controlled to enable the door leaf to be close to the door frame, so that the door leaf is closed, and the door leaf can be locked by using the locking structure, so that a user can use the secret room door conveniently; when the door leaf is opened, the first motor is started through the control box, the screw rod rotates, and the sliding block drives the connecting plate to move, so that the door leaf connected to the connecting plate is opened; when the door leaf is closed, the operation is reversed, so that the opening and closing of the door leaf can be conveniently completed through the forward and reverse rotation of the first motor;

2. when the door leaf is unlocked, the second motor is started, the gear rotates and drives the first moving frame and the second moving frame to approach each other, so that the first driving rod and the second driving rod leave the inserting groove, and the door leaf is unlocked; when the door leaf is locked, the operation is reversed, so that the door leaf is conveniently unlocked or locked by using the second motor; when locking or unblock door leaf, make the second motor can both in time stop through fourth proximity switch and fifth proximity switch, avoid the idle running of second motor, simultaneously through control box integrated control, improved the intellectuality of secret room door

3. In the door leaf opening or closing process, when the induction sheet is close to the third proximity switch, the third proximity switch feeds back a signal for decelerating the first motor, so that the moving speed of the door leaf is reduced, and therefore the door leaf is prevented from colliding with a door frame due to inertia, and the durability of the door leaf is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of the retraction driving mechanism in the embodiment of the present application.

Fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Description of reference numerals: 1. a door frame; 11; inserting grooves; 2. a door leaf; 21. a frame body; 22. a door panel; 221. mounting a plate; 222. a stabilizer tube; 223. fixing the rod; 224. fixing a nut; 225. a fourth proximity switch; 226. a fifth proximity switch; 3. an inward-retreating driving mechanism; 31. a support; 311. a long rod; 312. a short bar; 313. a first proximity switch; 314. a second proximity switch; 315. a third proximity switch; 32. a fixed mount; 321. a vertical rod; 322. connecting a wallboard; 33. a slide rail; 34. a connecting plate; 341. a flat plate; 342. a vertical plate; 343. a sliding sleeve; 344. a slider; 345. an induction sheet; 4. a first motor; 41. a screw rod; 5. a locking structure; 51. a second motor; 511. a gear; 52. a first movable frame; 521. a first drive lever; 522. a first abutting rod; 53. a second movable frame; 531. a second drive lever; 532. a second butting rod; 54. gear teeth; 55. a plug rod; 56. a slide bar; 561. a sliding groove; 562. an induction block; 6. and a control box.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a remove close room door of rail mounted. Referring to fig. 1 and 2, the moving track type closed chamber door includes a door frame 1, a door leaf 2 is disposed on the door frame 1, a control box 6 is disposed on one side of the door frame 1, and the door leaf 2 includes a frame 21 vertically disposed and a door panel 22 located in front of the frame 21. The top of door leaf 2 is provided with the drive mechanism 3 that moves back that is used for making door leaf 2 move back in, and drive mechanism 3 that moves back includes the support 31 of level setting, and support 31 is rectangular form, and support 31 comprises two parallel stock 311 and two parallel quarter butt 312 of each other. The upper surface of the bracket 31 is provided with a fixing frame 32 used for connecting the top surface of the wall body, the fixing frame 32 comprises four vertical rods 321 distributed on four corners of the upper surface of the bracket 31, and the upper ends of the vertical rods 321 are horizontally provided with a connecting wall plate 322.

Referring to fig. 2, the upper surfaces of the two long rods 311 are provided with slide rails 33 along the length direction of the long rods 311 (i.e., the inward-moving path direction of the door leaf 2), a connecting plate 34 is connected above the bracket 31 in a sliding manner, the connecting plate 34 includes a flat plate 341 horizontally arranged and vertical plates 342 fixedly connected to two ends of the flat plate 341, the vertical plates 342 are perpendicular to the flat plate 341, and the lower ends of the two vertical plates 342 are fixedly connected to the upper end of the frame 21 of the door leaf 2; the side of the flat plate 341 close to the bracket 31 is provided with a sliding sleeve 343 in sliding fit with the sliding rail 33. The side face, away from the long rod 311, of the short rod 312 close to the door frame 1 is provided with a first motor 4 electrically connected with the control box 6, the first motor 4 is located at the middle position of the short rod 312, the axis of the output shaft of the first motor 4 is parallel to the length direction of the long rod 311, the output shaft of the first motor 4 movably penetrates through the short rod 312 close to the door frame 1, the output shaft of the first motor 4 is coaxially provided with a screw rod 41, one end, away from the first motor 4, of the screw rod 41 is rotatably connected to the short rod 312, away from the door frame 1, and the middle position of the lower surface of the flat plate 341 is provided with a sliding block 344 in threaded fit with the screw rod.

Referring to fig. 2, a first proximity switch 313 for feeding back a signal to stop the first motor 4 when the door leaf 2 is fully closed and a second proximity switch 314 for feeding back a signal to stop the first motor 4 when the door leaf 2 is fully opened are spaced on a side surface of one of the long rods 311 of the bracket 31 close to the inner side of the bracket 31 along a retraction path of the door leaf 2, the first proximity switch 313 and the second proximity switch 314 are both located on a side surface of the long rod 311 close to the slider 344, a sensing piece 345 is located on one side of the slider 344, one end of the sensing piece 345 far away from the slider 344 is close to the side surface of the long rod 311 provided with the first proximity switch 313, and both the first proximity switch 313 and the second proximity switch 314 are electrically connected to the control box 6. Meanwhile, two third proximity switches 315 for feeding back signals of the decelerating first motor 4 are arranged between the first proximity switch 313 and the second proximity switch 314, wherein one third proximity switch 315 is close to the first proximity switch 313, the other third proximity switch is close to the second proximity switch 314, and the third proximity switch 315 is electrically connected with the control box 6.

Referring to fig. 1 and 3, a locking structure 5 for locking or unlocking the door leaf 2 and the door frame 1 is further disposed on the door leaf 2, the locking structure 5 includes a second motor 51 vertically disposed in the door leaf 2, a mounting plate 221 is horizontally disposed at a middle position of an inner side surface of the door leaf 22, the mounting plate 221 is perpendicular to the door leaf 22, one end of the second motor 51 close to an output shaft thereof is fixedly connected to a lower surface of the mounting plate 221, the output shaft of the second motor 51 movably penetrates through the mounting plate 221, a gear 511 is disposed on the output shaft of the second motor 51, a first moving frame 52 and a second moving frame 53 are respectively disposed on two sides of the gear 511 close to a front side of the door leaf 2 and far away from the front side of the door leaf 2, the first moving frame 52 includes a first driving rod 521 horizontally disposed and parallel to the door leaf 22, the second moving frame 53 includes a second driving rod 531 horizontally disposed, the first driving lever 521 and the second driving lever 531 are provided with gear teeth 54 adjacent to the side of the gear 511 and engaged with the gear 511.

Referring to fig. 3, the door leaf 2 is further provided with a stabilizing structure for stabilizing the first moving frame 52 and the second moving frame 53, the stabilizing structure includes a stabilizing pipe 222 sleeved on the first driving rod 521 and the second driving rod 531, the stabilizing pipe 222 is fixedly connected to the door leaf 2, one end of the stabilizing pipe 222 near the second driving rod 531 where the gear teeth 54 are arranged is provided, one ends of the first driving rod 521 and the second driving rod 531 far away from the gear 511 are respectively provided with a first butt joint rod 522 and a second butt joint rod 532, the side surfaces of the first butt joint rod 522 and the second butt joint rod 532 far away from the second motor 51 are provided with a plurality of insertion rods 55, in this embodiment, the number of the inserting rods 55 may be four, the four inserting rods 55 are uniformly spaced, four inserting grooves 11 are disposed on the inner side surface of the door frame 1, and the inserting rods 55 movably penetrate through the frame 21 of the door leaf 2 and then are inserted into the inserting grooves 11.

Referring to fig. 3, the side surfaces of the first abutting rod 522 and the second abutting rod 532 close to the gear teeth 54 are respectively and horizontally provided with a plurality of first sliding rods 56 and second sliding rods 56, in this embodiment, the number of the first sliding rods 56 and the second sliding rods 56 can be set to two, the two first sliding rods 56 and the two second sliding rods 56 are both symmetrically arranged about the second motor 51, the first sliding rods 56 and the second sliding rods 56 are both provided with sliding grooves 561 along the length direction thereof, the door panel 22 is provided with fixing rods 223 penetrating through the sliding grooves 561, and the end portions of the fixing rods 223 are provided with fixing nuts 224. In addition, a fourth proximity switch 225 for feeding back and stopping the signal of the second motor 51 when the locking structure 5 unlocks the door leaf 2 is arranged on the inner side surface of the panel of the door leaf 2, the fourth proximity switch 225 is close to the end part, far away from the second abutting rod 532, of the second sliding rod 56, a fifth proximity switch 226 for feeding back and stopping the signal of the second motor 51 when the locking structure 5 locks the door leaf 2 is further arranged on the door leaf 2, an induction block 562 is arranged at the position, close to the middle part of the lower surface of the first sliding rod 56, of the fifth proximity switch 226, close to one end, far away from the gear 511, of the induction block 562, and the fourth proximity switch 225 and the fifth proximity switch 226 are both electrically connected with the control box.

The implementation principle of this application embodiment removal track formula secret room door does: when the door leaf 2 unlocking device is used, the second motor 51 is started through the control box 6, the first driving rod 521 and the second driving rod 531 are close to each other, meanwhile, the first abutting rod 522 and the second abutting rod 532 drive the inserting rod 55 to be separated from the inserting groove 11, when one end, far away from the second abutting rod 532, of the second sliding rod 56 is close to the fourth proximity switch 225, the fourth proximity switch 225 feeds back a signal for stopping the second motor 51, and the control box 6 controls to stop the second motor 51, so that the door leaf 2 is unlocked; then the first motor 4 is started, the lead screw 41 drives the slider 344 to move towards a direction away from the first motor 4, meanwhile, the connecting plate 34 and the induction sheet 345 move along with the slider 344, when the induction sheet 345 approaches the third proximity switch 315, the third proximity switch 315 feeds back a signal for decelerating the first motor 4, so that the moving speed of the door leaf 2 is reduced, when the induction sheet 345 approaches the second proximity switch 314, the second proximity switch 314 feeds back a signal for stopping the first motor 4, the control box 6 controls the first motor 4 to stop, and at this time, the door leaf 2 is completely opened;

when the door leaf 2 is to be closed, the first motor 4 rotates reversely, the door leaf 2 moves towards the door frame 1, when the induction sheet 345 approaches the third proximity switch 315, the third proximity switch 315 feeds back a signal for decelerating the first motor 4, so that the moving speed of the door leaf 2 is reduced, when the induction sheet 345 approaches the first proximity switch 313, the first proximity switch 313 feeds back a signal for stopping the first motor 4, and the control box 6 controls the first motor 4 to stop, so that the door leaf 2 is closed; then, the second motor 51 rotates reversely, so that the first driving rod 521 and the second driving rod 531 are away from each other, and at the same time, the first abutting rod 522 and the second abutting rod 532 drive the inserting rod 55 to be inserted into the inserting slot 11, when the end of the sensing block 562 away from the gear 511 approaches the fifth proximity switch 226, the fifth proximity switch 226 feeds back a signal for stopping the second motor 51, and the control box 6 controls to stop the second motor 51, thereby locking the door leaf 2.

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 remove close room door of rail mounted which characterized in that: the door comprises a door frame (1), wherein a door leaf (2) is arranged on the door frame (1), an inward-moving driving mechanism (3) for enabling the door leaf (2) to move inward is arranged above the door leaf (2), a locking structure (5) for locking or unlocking the door leaf (2) and the door frame (1) is further arranged on the door leaf (2), and a control box (6) is arranged on the door frame (1).

2. The moving track type secret door according to claim 1, wherein: the inward-moving driving mechanism (3) comprises a support (31), two ends of the support (31) are respectively provided with a fixing frame (32) used for being connected with the top surface of a wall body, an upper sliding of the support (31) is connected with a connecting plate (34), two ends of the connecting plate (34) are fixedly connected with the upper end of the door leaf (2), the support (31) is provided with a first motor (4) electrically connected with the control box (6), an output shaft of the first motor (4) is provided with a screw rod (41), and the connecting plate (34) is provided with a sliding block (344) in threaded fit with the screw rod (41).

3. The moving track type secret door according to claim 2, wherein: first proximity switches (313) used for feeding back and stopping signals of the first motor (4) when the door leaf (2) is completely closed and second proximity switches (314) used for feeding back and stopping signals of the first motor (4) when the door leaf (2) is completely opened are arranged on the support (31) at intervals along the direction of a retraction path of the door leaf (2), an induction sheet (345) is arranged on one side of the sliding block (344), and the first proximity switches (313) and the second proximity switches (314) are electrically connected with the control box (6).

4. The moving track type secret door according to claim 3, wherein: two third proximity switches (315) for feeding back and decelerating signals of the first motor (4) are arranged between the first proximity switch (313) and the second proximity switch (314), one third proximity switch (315) is close to the first proximity switch (313), the other third proximity switch is close to the second proximity switch (314), and the third proximity switches (315) are electrically connected with the control box (6).

5. The moving track type secret door according to claim 2, wherein: a sliding rail (33) is arranged on the support (31) along the inward-retreating path of the door leaf (2), and a sliding sleeve (343) in sliding fit with the sliding rail (33) is arranged on the side face, close to the support (31), of the connecting plate (34).

6. The moving track type secret door according to claim 1, wherein: the locking structure (5) comprises a second motor (51) vertically arranged on the inner side of the door leaf (2), a gear (511) is arranged on an output shaft of the second motor (51), a first moving frame (52) and a second moving frame (53) are arranged on two sides of the gear (511), the first moving frame (52) comprises a first driving rod (521), the second moving frame (53) comprises a second driving rod (531), gear teeth (54) are arranged on the side surfaces, close to the gear (511), of the first driving rod (521) and the second driving rod (531) and meshed with the gear (511), inserting grooves (11) are arranged on the opposite inner side surfaces of the door frame (1), and one ends, far away from the gear (511), of the first driving rod (521) and one end, far away from the gear (511), of the second driving rod (531) are respectively inserted into the inserting grooves (11) of the door frame (1), the door leaf (2) is further provided with a stabilizing structure for stabilizing the first moving frame (52) and the second moving frame (53).

7. The moving track type secret door according to claim 6, wherein: the stabilizing structure comprises a stabilizing pipe (222) sleeved on the first driving rod (521) and the second driving rod (531), the stabilizing pipe (222) is fixedly connected to the door leaf (2), one end of the stabilizing pipe (222), which is close to the second driving rod (531) and is provided with the gear teeth (54), one ends of the first driving rod (521) and the second driving rod (531) far away from the gear (511) are respectively provided with a first abutting rod (522) and a second abutting rod (532), the side surfaces of the first butting rod (522) and the second butting rod (532) close to the gear teeth (54) are respectively provided with a plurality of first sliding rods (56) and second sliding rods (56), the first sliding rod (56) and the second sliding rod (56) are both provided with a sliding groove (561), the door leaf (2) is provided with a fixed rod (223) penetrating through the sliding groove (561).

8. The moving track type secret door according to claim 7, wherein: the door leaf (2) is provided with a fourth proximity switch (225) used for feeding back and stopping a signal of a second motor (51) when a locking structure (5) unlocks the door leaf (2), the fourth proximity switch (225) is located at one end, close to the gear (511), of the second sliding rod (56), the door leaf (2) is further provided with a fifth proximity switch (226) used for feeding back and stopping a signal of the second motor (51) when the locking structure (5) locks the door leaf (2), an induction block (562) is arranged on the first sliding rod (56) and close to the middle of the first sliding rod, the fifth proximity switch (226) is close to one end, far away from the gear (511), of the induction block (562), and the fourth proximity switch (225) and the fifth proximity switch (226) are electrically connected with the control box (6).