阅读说明：本技术 一种安全电梯层门 (Safety elevator landing door ) 是由 徐浩波 张秀平 何水枝 于 2021-07-14 设计创作，主要内容包括：本发明属于电梯层门技术领域,具体的说是一种安全电梯层门,包括门框、门体、滑杆和控制器；所述一号门体和二号门体平行安装在门框上,一号门体方靠近门框的端面固连有一号滑块；所所述二号门体上方靠近门框的端面固连有二号滑块；所述一号滑块和二号滑块都与滑杆滑动连接；所述二号门体靠近一号门体的端面均设置有一号凹槽；所述一号凹槽内部设有弹出拦截模块；本发明通过将门体设成两层结构,再与二号门体内部设置有一号凹槽,一号凹槽内部设有弹出拦截装置相配合,使得门体在受到冲击时能够有弹出拦截机构阻碍门体被冲撞开,进而保护电梯井不被破坏,使得电梯层门在发生火灾时受冲击的能力得到加强,能够保障楼体在发生火灾时候的安全。(The invention belongs to the technical field of elevator landing doors, and particularly relates to a safe elevator landing door which comprises a door frame, a door body, a sliding rod and a controller, wherein the door frame is provided with a door body; the first door body and the second door body are arranged on the door frame in parallel, and a first sliding block is fixedly connected to the end face, close to the door frame, of the first door body; a second sliding block is fixedly connected to the end face, close to the door frame, above the second door body; the first sliding block and the second sliding block are connected with the sliding rod in a sliding mode; the end surfaces of the second door body, which are close to the first door body, are provided with first grooves; a popup intercepting module is arranged inside the first groove; according to the elevator shaft door, the door body is designed into a two-layer structure, the first groove is formed in the second door body, and the popping intercepting device is arranged in the first groove and matched with the popping intercepting device, so that the popping intercepting mechanism can prevent the door body from being knocked open when the door body is impacted, the elevator shaft is further protected from being damaged, the impacting capacity of the elevator shaft door is enhanced when a fire disaster occurs, and the safety of a building body when the fire disaster occurs can be guaranteed.)

1. The utility model provides a safe elevator layer door, includes door frame (1), a body (2), slide bar (4) and controller, its characterized in that: the door body (2) is divided into a first door body (21) and a second door body (22); the first door body (21) and the second door body (22) are arranged on the door frame (1) in parallel, the first door body (21) is arranged far away from the elevator shaft, and a first sliding block (23) is fixedly connected to the end face, close to the door frame (1), above the first door body (21); the number of the first sliding blocks (23) is two; a second sliding block (24) is fixedly connected to the end face, close to the door frame (1), above the second door body (22); the number of the second sliding blocks (24) is two; the first sliding block (23) and the second sliding block (24) are in sliding connection with the sliding rod (4); the end surfaces, close to the first door body (21), of the second door body (22) are provided with first grooves (25); the first grooves (25) penetrate through the second door body (22), the two first grooves (25) are respectively arranged at the corresponding second door body (22), and the first grooves (25) are arranged on the end face of the second door body (22) in a staggered mode; a pop-up intercepting module (3) is arranged inside the second door body (22); the pop-up intercepting module (3) is used for protecting the door body (2).

2. A safety elevator landing door according to claim 1, wherein: the popup intercepting module (3) comprises a first displacement block (31), a second displacement block (32), a first spring (33), a torsion spring (34) and a rotating rod (35); the first displacement block (31) is connected inside the first groove (25) in a sliding mode, one end, close to the first door body (21), of the first displacement block (31) extends out of the first groove (25), and the first displacement block (31) is connected with the second displacement block (32) through a first spring (33); the end face, away from the first door body (21), of the second door body (22) is provided with a second groove (26); the number of the second grooves (26) is two, and the second grooves (26) are communicated with the first grooves (25); a rotating rod (35) is arranged in the second groove (26); dwang (35) and No. two displacement piece (32) are connected through torsional spring (34) rotation, and dwang (35) card is inside No. two recess (26) under initial condition.

3. A safety elevator landing door according to claim 2, wherein: a sliding strip (27) is arranged between the first sliding block (23) and the second sliding block (24); the cross section of each sliding strip (27) is L-shaped, the number of the sliding strips (27) is two, and one end, with the relatively short diameter, of each sliding strip (27) is fixedly connected to the surface of the second sliding block (24); the surface of the first sliding block (23) close to the second sliding block (24) is provided with a rectangular groove (211); the rectangular groove (211) penetrates through two corresponding end surfaces of the first sliding block (23); the sliding strip (27) penetrates through the rectangular groove (211) to be connected with the first sliding block (23) in a sliding mode, the end face, with the relatively long diameter, of the sliding strip (27) is located on the outer side of the first sliding block (23), and the diameter, with the relatively long diameter, of the end face of the sliding strip (27) is larger than that of the rectangular groove (211); the end face, away from the door body (2), of the sliding strip (27) is provided with a third groove (271); a second spring (272) and a triangular block (273) are arranged inside the third groove (271); one end of the spring is fixedly connected with the bottom of the third groove (271), and the other end of the spring is fixedly connected with the end face, close to the third groove (271), of the triangular block (273); the third sliding block is connected with the third groove (271) in a sliding mode.

4. A safety elevator landing door according to claim 3, wherein: the positions of the second door body (22) far away from the door frames (1) on the two sides of the end surface of the first door body (21) are fixedly connected with blocking blocks (11); the number of the blocking blocks (11) is two, and the blocking blocks (11) can block the corresponding rotating rods (35) from stopping rotating.

5. A safety elevator landing door according to claim 4, wherein: the material of the blocking block (11) is a magnetic material; the rotating rod (35) is made of hard materials, and the rotating rod (35) can be adsorbed by the blocking block (11).

6. A safety elevator landing door according to claim 5, wherein: the cross section of the second groove (26) is semicircular; the cross section of the rotating rod (35) is semicircular.

7. A safety elevator landing door according to claim 6, wherein: the first door body (21) can cross the triangular block (273) only when the first door body bears the reverse direction acceleration of forty g or more at the moment of collision.

Technical Field

The invention belongs to the technical field of elevator landing doors, and particularly relates to a safe elevator landing door.

Background

The elevator landing door is a door seen outside the elevator by people and is also called a hall door; the opening and closing of the landing door are realized by a door opening blade arranged on the car door; after the landing door is closed, the mechanical lock hook of the door lock is engaged, meanwhile, the landing door and the car door are closed through the electrical interlocking contact, the elevator control loop is switched on, and at the moment, the elevator can be started to operate; the elevator landing door has a fireproof effect in a building and is used for dividing fireproof subareas; when the floor conflagration breaks out, the conflagration can influence the explosion, and the blast wave of explosion can strike the layer door of elevator, and elevator layer door is receiving when striking, is bumped easily, and consequently inside blast wave and flame can strike into the elevator shaft, destroys the building bottom along the elevartor shaft, influences building overall stability, and the inside elevator car of elevartor shaft can receive the impact influence simultaneously, can fall when serious and lead to the fact the impact damage to ground.

The technical scheme includes that the anti-collision elevator landing door comprises an installation steel plate, wherein first installation holes are formed in four outer walls of the front four corners of the installation steel plate, fixing bolts are arranged in the four first installation holes, electric slide rails are fixed on the outer walls of the front of the installation steel plate through bolts, buffer balls are fixed on the outer walls of the front of two ends of each electric slide rail through bolts, two slide blocks are connected to the inner wall of each electric slide rail in a sliding mode, fixed blocks are fixed on the outer walls of the front of the two slide blocks through bolts, two reset springs are fixed on the outer walls of two sides of the two fixed blocks through bolts, the same side of each two reset springs is fixed with the same baffle through bolts, and rubber bulges are arranged on the outer wall of one side, away from the reset springs, of the four baffles; the technical scheme can reduce the shaking generated when the two elevator landing doors are mutually attached, improve the stability of the elevator landing doors and promote the stable opening and closing effect of the left and right elevator landing doors; however, the technical scheme also has the defects that the position of the installation steel plate is located above the door body, the impact force received is not large as the impact force received by the door body, the condition that the door body is opened due to impact cannot be effectively solved, and then the fire and the shock waves generated by the fire cannot be effectively blocked, so that the property safety of people cannot be effectively protected, and the limitation of the scheme is caused.

In view of the above, in order to overcome the above technical problems, the present invention provides a safety elevator landing door, which solves the above technical problems.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides the safety elevator landing door, the door body is designed into a two-layer structure, the first groove is formed in the second door body, the popup intercepting device is arranged in the first groove and matched with the first groove, so that the door body can be prevented from being knocked open by the popup intercepting mechanism when being impacted, the elevator shaft is further protected from being damaged, the impact capacity of the elevator landing door when a fire disaster happens is enhanced, and the safety of a building body when the fire disaster happens can be guaranteed.

The invention relates to a safety elevator landing door which comprises a door frame, door bodies and a sliding rod, wherein the door bodies are divided into a first door body and a second door body; the first door body and the second door body are arranged on the door frame in parallel, the first door body is arranged far away from the elevator shaft, and a first sliding block is fixedly connected to the end face, close to the door frame, above the first door body; the number of the first sliding blocks is two; a second sliding block is fixedly connected to the end face, close to the door frame, above the second door body; the number of the second sliding blocks is two; the first sliding block and the second sliding block are connected with the sliding rod in a sliding mode; the end surfaces of the second door body, which are close to the first door body, are provided with first grooves; the first grooves penetrate through the second door body, the two first grooves are respectively arranged at the corresponding second door body, and the first grooves are arranged on the end face of the second door body in a staggered manner; a pop-up interception module is arranged inside the second door body; the pop-up interception module is used for protecting the door body;

when the elevator works, when a fire disaster happens to a floor, the fire disaster can affect explosion, the blast wave of the explosion can impact a floor door of an elevator, and the floor door of the elevator is easily knocked away when being collided, so the blast wave and the flame can impact the interior of an elevator shaft, the bottom layer of a building is damaged along the elevator shaft, the integral stability of the building is affected, and meanwhile, an elevator cage in the elevator shaft can be affected by the impact, and can fall to the ground to cause impact damage when being serious;

the first door body and the second door body are both connected with the sliding rod in a sliding mode, and when the elevator reaches the corresponding landing door, the controller controls the first sliding block and the second sliding block to drive the first door body and the second door body to open and close in a sliding mode through the sliding rod; when a floor is subjected to fire explosion and a landing door is impacted, the first door body is impacted firstly, then the first door body is impacted to the second door body, the popping intercepting module in the second door body pops out from the end face, away from the first door body, of the first groove after being impacted, and the second door body is blocked, so that the second door body cannot be broken by the impact;

according to the elevator shaft, the door body is designed into a two-layer structure, the first groove is formed in the second door body, the popping and intercepting device is arranged in the first groove and matched with the popping and intercepting device, so that the door body can be prevented from being knocked open by the popping and intercepting mechanism when being impacted, the elevator shaft is further protected from being damaged, the fire is cut off, the fire is prevented from spreading, the impact capacity of the elevator shaft door when a fire breaks out is enhanced, and the safety of a building body when the fire breaks out can be guaranteed.

Preferably, the pop-up intercepting module comprises a first displacement block, a second displacement block, a first spring, a torsion spring and a rotating rod; the first displacement block is connected inside the first groove in a sliding mode, one end, close to the first door body, of the first displacement block extends out of the first groove, and the first displacement block and the second displacement block are connected through a first spring; the end face, away from the first door body, of the second door body is provided with a second groove; the number of the second grooves is two, and the second grooves are communicated with the first grooves; a rotating rod is arranged in the second groove; the rotating rod is rotatably connected with the second displacement block through a torsion spring and is clamped in the second groove in an initial state;

when the first displacement block is in collision with the first displacement block, the first displacement block is impacted to move towards the second displacement block, the first spring is extruded in the motion process, the second displacement block is impacted by the impact force transmitted by the first spring to drive the rotating rod to move towards the direction far away from the second displacement block, when the rotating rod moves to be separated from the second groove, the torsion of the torsional spring is greater than the gravity of the rotating rod, the rotating rod rotates clockwise under the action of the torsion of the torsional spring to block the gap of the second door body, the impact prevention effect of the second door body is enhanced, and the second door body is prevented from being impacted;

according to the invention, the pop-up interception module is arranged in the second door body and then opened together with the pop-up interception module when being impacted, so that the second door body is not impacted when the first door body is impacted, the elevator landing door is not impacted when being impacted, and the protection capability of the elevator landing door on the impact is improved.

Preferably, a sliding strip is arranged between the first sliding block and the second sliding block; the cross section of each slide bar is L-shaped, and the number of the slide bars is two; the surface of the first sliding block, which is close to the second sliding block, is provided with a rectangular groove; the rectangular groove penetrates through two corresponding end faces of the first sliding block; the sliding strip penetrates through the rectangular groove to be connected with the first sliding block in a sliding mode, one end of the sliding strip is fixedly connected to the surface of the second sliding block, and the other end of the sliding strip is located on the outer side of the first sliding block; the end surface of the sliding strip, which is far away from the door body, is provided with a third groove; a second spring and a triangular block are arranged in the third groove; one end of the spring is fixedly connected with the bottom of the third groove, and the other end of the spring is fixedly connected with the end face, close to the third groove, of the triangular block; the triangular block is connected with the third groove in a sliding manner; the sliding strip limits the first door body not to move towards the direction far away from the second door body;

when the door body is in work, the first door body can integrally move to the second door body through the sliding strip when being impacted, and the situation that the local part is impacted and deformed is avoided; when the first door body slides to the second door body, the first door body extrudes the triangular block, the inclined surface of the triangular block is stressed to drive the triangular block to move downwards to extrude the second spring, when the first door body crosses the whole triangular block, the pressure on the triangular block is reduced, and the triangular block is reset under the reaction force of the second spring, so that the first door body cannot be reset, and the first door body is prevented from shaking back and forth when being impacted and displaced to influence the overall firmness of the door frame;

according to the invention, the first door body is designed to slide towards the second door body, and is in spacing fit with the triangular blocks on the sliding strips, so that the phenomenon that the first door body is locally damaged by impact is avoided, the influence on the protection performance of the elevator landing door caused by the local damage by impact on the elevator landing door is further avoided, the protection capability of the elevator landing door on the impact is better improved, and the influence on the overall firmness of the door frame of the elevator landing door by the door body is also avoided.

Preferably, the blocking blocks are fixedly connected to the door frames of the second door body far away from the two sides of the end face of the first door body; the number of the blocking blocks is two, and the blocking blocks can block the corresponding rotating rods from stopping rotating;

during operation, when the dwang breaks away from No. two recess clockwise turning, the one end touch of dwang blocks for the rotation of dwang stops, avoids making the dwang rotation range too big because of the torsion of torsional spring is too big, and the effect of the No. two door bodies of dwang interception reduces, makes the dwang can be firm to the No. two door bodies intercept.

Preferably, the blocking block is made of a magnetic material; the rotating rod is made of a hard material and can be adsorbed by the blocking block;

when the door body intercepting device works, when the rotating rod is separated from the second groove and rotates clockwise, the intercepting block can firmly adsorb the rotating rod, the stability of the rotating rod for intercepting the second door body is improved, and the firmness and reliability of the rotating rod for intercepting the second door body are further enhanced; the rotating rod is made of hard materials, and steel is preferable.

Preferably, the cross section of the second groove is semicircular; the cross section of the rotating rod is semicircular;

during operation, when the dwang breaks away from No. two recess clockwise turning, dwang cross sectional shape has been avoided the dwang to take place popping out the condition that the in-process collided with No. two recess insidely for semi-circular, and then avoids influencing the normal rotation of dwang, has improved the stability when dwang rotates.

Preferably, the first door body can cross the triangular block only when bearing the reverse direction acceleration of forty g or more at the moment of collision;

when the door body works, the first door body can be subjected to common impact or other accidental conditions everyday, and the elastic force of the second spring is limited, so that the first door body can cross the triangular block only when bearing reverse acceleration of forty g or more in the moment of collision, and the popping and intercepting module can be ensured not to work under the conditions of mistaken touch or low impact force and no influence on the first door body; this principle is the same with air bag pops out the principle for it is out of work to pop out the interception module and touch or impact the not high and do not influence the condition of a door body under by mistake, has further improved the implementation stability of safety elevator layer door.

The invention has the following beneficial effects:

1. according to the elevator shaft, the door body is designed into a two-layer structure, the first groove is formed in the second door body, the popping and intercepting device is arranged in the first groove and matched with the popping and intercepting device, so that the door body can be prevented from being knocked open by the popping and intercepting mechanism when being impacted, the elevator shaft is further protected from being damaged, the impact capacity of the elevator shaft door when a fire disaster happens is enhanced, and the safety of a building body when the fire disaster happens can be guaranteed.

2. According to the invention, the pop-up interception module is arranged in the second door body and then opened together with the pop-up interception module when being impacted, so that the second door body is not impacted when the first door body is impacted, the elevator landing door is not impacted when being impacted, and the protection capability of the elevator landing door on the impact is improved.

3. According to the invention, the first door body is designed to slide towards the second door body, and is in spacing fit with the triangular blocks on the sliding strips, so that the phenomenon that the first door body is locally damaged by impact is avoided, the influence on the protection performance of the elevator landing door caused by the local damage by impact on the elevator landing door is further avoided, the protection capability of the elevator landing door on the impact is better improved, and the influence on the overall firmness of the door frame of the elevator landing door by the door body is also avoided.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a top plan view of the door body of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;

FIG. 5 is a diagram showing a state where the rotating lever is ejected in the present invention;

in the figure: 1. a door frame; 2. a door body; 4. a slide bar; 21. a first door body; 22. a second door body; 23. a first sliding block; 24. a second sliding block; 25. a first groove; 3. popping up an interception module; 31. a first displacement block; 32. a second displacement block; 33. a first spring; 34. a torsion spring; 35. rotating the rod; 26. a second groove; 27. a slide bar; 211. a rectangular groove; 271. a groove III; 272. a second spring; 273. a triangular block; 11. and a blocking block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the safety elevator landing door of the present invention includes a door frame 1, a door body 2 and a sliding rod 4, wherein the door body 2 is divided into a first door body 21 and a second door body 22; the first door body 21 and the second door body 22 are arranged on the door frame 1 in parallel, the first door body 21 is arranged far away from an elevator shaft, and a first sliding block 23 is fixedly connected to the end face, close to the door frame 1, above the first door body 21; the number of the first sliding blocks 23 is two; a second sliding block 24 is fixedly connected to the end surface, close to the door frame 1, above the second door body 22; the number of the second sliding blocks 24 is two; the first sliding block 23 and the second sliding block 24 are both connected with the sliding rod 4 in a sliding manner; the end surfaces of the second door body 22 close to the first door body 21 are provided with first grooves 25; the first grooves 25 penetrate through the second door body 22, the two first grooves 25 are respectively arranged at the corresponding second door body 22, and the first grooves 25 are arranged on the end face of the second door body 22 in a staggered manner; the second door body 22 is internally provided with a popup intercepting module 3; the pop-up interception module 3 is used for protecting the door body 2;

when the elevator works, when a fire disaster happens to a floor, the fire disaster can affect explosion, the blast wave of the explosion can impact a floor door of an elevator, and the floor door of the elevator is easily knocked away when being collided, so the blast wave and the flame can impact the interior of an elevator shaft, the bottom layer of a building is damaged along the elevator shaft, the integral stability of the building is affected, and meanwhile, an elevator cage in the elevator shaft can be affected by the impact, and can fall to the ground to cause impact damage when being serious;

the first door body 21 and the second door body 22 are both connected with the sliding rod 4 in a sliding mode, and when the elevator reaches a corresponding landing door, the controller controls the first sliding block 23 and the second sliding block 24 to drive the first door body 21 and the second door body 22 to open and close in a sliding mode through the sliding rod 4; when a floor is subjected to fire and explosion and a landing door is impacted, the first door body 21 is impacted firstly, then the first door body 21 is impacted to the position of the second door body 22, the popping intercepting module 3 in the second door body 22 is popped out from the end face, away from the first door body 21, of the first groove 25 after being impacted, and the second door body 22 is blocked, so that the second door body 22 cannot be broken by the impact;

according to the invention, the door body 2 is designed into a two-layer structure, the first groove 25 is arranged in the second door body 22, and the first groove 25 is internally provided with the popup intercepting device for matching, so that the door body 2 can be prevented from being knocked open by the popup intercepting mechanism when being impacted, the elevator shaft is further protected from being damaged, the fire is cut off, the fire is prevented from spreading, the impact capacity of the elevator landing door when a fire breaks out is enhanced, and the safety of a building body when the fire breaks out can be ensured.

As an embodiment of the present invention, the pop-up intercepting module 3 includes a first displacement block 31, a second displacement block 32, a first spring 33, a torsion spring 34, and a rotating rod 35; the first displacement block 31 is connected inside the first groove 25 in a sliding mode, one end, close to the first door body 21, of the first displacement block 31 extends out of the first groove 25, and the first displacement block 31 is connected with the second displacement block 32 through a first spring 33; the end surface of the second door body 22, which is far away from the first door body 21, is provided with a second groove 26; the number of the second grooves 26 is two, and the second grooves 26 are communicated with the first grooves 25; a rotating rod 35 is arranged in the second groove 26; the rotating rod 35 is rotatably connected with the second displacement block 32 through a torsion spring 34, and the rotating rod 35 is clamped in the second groove 26 in an initial state;

when the first displacement block 31 is exposed outside the first groove 25, when the first door body 21 impacts the first displacement block 31, the first displacement block 31 is impacted to move towards the second displacement block 32, the first spring 33 is extruded in the motion process, the second displacement block 32 is impacted by the impact force transmitted by the first spring 33, the rotating rod 35 is driven to move towards the direction far away from the second displacement block 32, when the rotating rod 35 moves to be separated from the second groove 26, the torsion of the torsion spring 34 is greater than the gravity of the rotating rod 35, the rotating rod 35 rotates clockwise under the torsion of the torsion spring 34, the gap of the second door body 22 is blocked, the impact-resistant effect of the second door body 22 is enhanced, and the second door body 22 is not impacted;

according to the invention, the pop-up interception module 3 is arranged in the second door body 22 and then opened when being impacted with the pop-up interception module 3, so that the second door body 22 is not impacted when the first door body 21 is impacted, the elevator landing door is not impacted wholly, and the protection capability of the elevator landing door to the impact is improved.

As an embodiment of the invention, a slide bar 27 is arranged between the first slide block 23 and the second slide block 24; the cross section of each sliding strip 27 is L-shaped, and the number of the sliding strips 27 is two; the surface of the first sliding block 23 close to the second sliding block 24 is provided with a rectangular groove 211; the rectangular groove 211 penetrates through two corresponding end surfaces of the first sliding block 23; the slide bar 27 penetrates through the rectangular groove 211 to be connected with the first sliding block 23 in a sliding mode, one end of the slide bar 27 is fixedly connected to the surface of the second sliding block 24, and the other end of the slide bar 27 is located on the outer side of the first sliding block 23; the end surface of the slide bar 27 far away from the door body 2 is provided with a third groove 271; a second spring 272 and a triangular block 273 are arranged inside the third groove 271; one end of the spring is fixedly connected with the bottom of the third groove 271, and the other end of the spring is fixedly connected with the end face, close to the third groove 271, of the triangular block 273; the triangular block 273 is connected with the third groove 271 in a sliding manner; the slide bar 27 limits the first door body 21 from moving away from the second door body 22;

when the door body 21 works, when being impacted, the first door body 21 can integrally move towards the second door body 22 through the sliding strip 27, so that the situation that the local part is impacted and deformed is avoided; when the first door body 21 slides towards the second door body 22, the first door body 21 extrudes the triangular block 273, the inclined surface of the triangular block 273 is forced to drive the triangular block 273 to move downwards to extrude the second spring 272, when the first door body 21 crosses the whole triangular block 273, the pressure on the triangular block 273 is reduced, and the triangular block 273 is reset under the reaction force of the second spring 272, so that the first door body 21 cannot be reset, and the influence on the whole firmness of the door frame 1 caused by the back-and-forth shaking of the first door body 21 due to impact displacement is avoided;

according to the invention, the first door body 21 is designed to slide towards the second door body 22, and is in spacing fit with the triangular block 273 on the sliding strip 27, so that the phenomenon that the first door body 21 is locally damaged by impact is avoided, the influence on the protection performance of the elevator landing door caused by the local damage by impact on the elevator landing door is further avoided, the protection capability of the elevator landing door on the impact is better improved, and the influence on the overall firmness of the elevator landing door frame 1 caused by the door body 2 is also avoided.

As an implementation manner of the invention, the door frame 1 of the second door body 22, which is far away from the two sides of the end surface of the first door body 21, is fixedly connected with the blocking block 11; the number of the blocking blocks 11 is two, and the blocking blocks 11 can block the corresponding rotating rods 35 from stopping rotating;

during operation, when dwang 35 breaks away from No. two recess 26 clockwise turning, the one end of dwang 35 touches and blocks piece 11 for the rotation of dwang 35 stops, avoids making dwang 35 rotation range too big because of torsional spring 34's torsion is too big, and the effect that dwang 35 intercepted No. two door bodies 22 reduces, makes that dwang 35 can be firm intercepts No. two door bodies 22.

In one embodiment of the present invention, the blocking block 11 is made of a magnetic material; the rotating rod 35 is made of a hard material, and the rotating rod 35 can be adsorbed by the blocking block 11;

when the door body intercepting device works, when the rotating rod 35 is separated from the second groove 26 and rotates clockwise, the intercepting block 11 can firmly adsorb the rotating rod 35, so that the stability of the rotating rod 35 for intercepting the second door body 22 is improved, and the firmness and reliability of the rotating rod 35 for intercepting the second door body 22 are further enhanced; the rotating lever 35 is made of a hard material, preferably steel.

As an embodiment of the invention, the cross section of the second groove 26 is semicircular; the cross section of the rotating rod 35 is semicircular;

during operation, when dwang 35 breaks away from No. two recess 26 clockwise turning, dwang 35 cross sectional shape has avoided dwang 35 to take place popping out the condition that the in-process collided with No. two recess 26 inside for semi-circular, and then avoids influencing the normal rotation of dwang 35, has improved the stability when dwang 35 rotates.

In one embodiment of the present invention, the first door 21 can pass over the triangular block 273 only when it receives a reverse acceleration of forty g or more at the moment of collision;

during operation, the first door body 21 may be subjected to common impact or other accidents everyday, and the first door body 21 can pass through the triangular block 273 only when bearing reverse acceleration of forty g or more at the moment of collision by limiting the elastic force of the second spring 272, so that the popping and intercepting module 3 is ensured not to work under the conditions of mistaken touch or low impact force and no influence on the first door body 21; this principle is the same with air bag pops out the principle for popping out interception module 3 and touch or impact strength is not high and do not influence under the circumstances of a door body 21 out of work by mistake, further improved the implementation stability of safety elevator layer door.

The specific implementation measures are as follows:

the first door body 21 and the second door body 22 are both connected with the sliding rod 4 in a sliding mode, and when the elevator reaches a corresponding landing door, the controller controls the first sliding block 23 and the second sliding block 24 to drive the first door body 21 and the second door body 22 to open and close in a sliding mode through the sliding rod 4; when a floor is in fire and explosion and a landing door is impacted, the first door body 21 is impacted firstly, then the first door body 21 is impacted to the position of the second door body 22, the popping intercepting module 3 in the second door body 22 is impacted and then popped out from the end surface of the first groove 25 far away from the first door body 21 to block the second door body 22, so that the part of the first displacement block 31 of the second door body 22 which is impacted is exposed outside the first groove 25, when the first door body 21 impacts the first displacement block 31, the first displacement block 31 is impacted to move towards the second displacement block 32, the first spring 33 is extruded in the movement process, the second displacement block 32 is impacted by the impact force transmitted by the first spring 33 to drive the rotating rod 35 to move towards the direction far away from the second displacement block 32, and when the rotating rod 35 moves to be separated from the second groove 26, the torsion force of the torsion spring 34 is larger than the gravity of the rotating rod 35, the rotating rod 35 rotates clockwise under the action of the torsion spring 34, so that the gap of the second door body 22 is blocked, the impact-proof effect of the second door body 22 is enhanced, and the second door body 22 is not impacted; when the first door body 21 is impacted, the first door body can integrally move towards the second door body 22 through the sliding strip 27, so that the situation that the local part is impacted and deformed is avoided; when the first door body 21 slides towards the second door body 22, the first door body 21 extrudes the triangular block 273, the inclined surface of the triangular block 273 is forced to drive the triangular block 273 to move downwards to extrude the second spring 272, when the first door body 21 crosses the whole triangular block 273, the pressure on the triangular block 273 is reduced, and the triangular block 273 is reset under the reaction force of the second spring 272, so that the first door body 21 cannot be reset, and the influence on the whole firmness of the door frame 1 caused by the back-and-forth shaking of the first door body 21 due to impact displacement is avoided; when the rotating rod 35 is separated from the second groove 26 and rotates clockwise, one end of the rotating rod 35 touches the blocking block 11, so that the rotation of the rotating rod 35 is stopped, and the phenomenon that the rotating rod 35 rotates too much due to too large torsion of the torsion spring 34 is avoided, the effect of the rotating rod 35 for blocking the second door body 22 is reduced, and the rotating rod 35 can firmly block the second door body 22; when the rotating rod 35 is separated from the second groove 26 and rotates clockwise, the blocking block 11 can firmly adsorb the rotating rod 35, so that the stability of the rotating rod 35 for blocking the second door body 22 is improved, and the firmness and reliability of the rotating rod 35 for blocking the second door body 22 are further enhanced; the rotating rod 35 is made of hard material, preferably steel; when the rotating rod 35 is separated from the second groove 26 and rotates clockwise, the cross section of the rotating rod 35 is semicircular, so that the rotating rod 35 is prevented from colliding with the inside of the second groove 26 in the ejection process, the normal rotation of the rotating rod 35 is further prevented from being influenced, and the stability of the rotating rod 35 in rotation is improved; the first door body 21 may be subjected to common impact or other unexpected conditions everyday, and the elastic force of the second spring 272 is limited, so that the first door body 21 can pass through the triangular block 273 only when bearing reverse acceleration of forty g or more in the moment of collision, and the popping and intercepting module 3 is ensured not to work under the conditions of mistaken touch or low impact force and no influence on the first door body 21; this principle is the same with air bag pops out the principle for popping out interception module 3 and touch or impact strength is not high and do not influence under the circumstances of a door body 21 out of work by mistake, further improved the implementation stability of safety elevator layer door.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.