Anti-collision elevator landing door

Abstract

The present application relates to a kind of elevator landing door, especially a kind of anti-collision elevator landing door, including external frame, landing door and control panel etc., landing door is opposite sliding in external frame, control panel controls landing door by power device, control panel is electrically connected with elevator car, it further includes buffer mechanism and limiting mechanism, buffer mechanism is composed of buffer connecting rod, limiting shaft block and limiting rod, the inside surface of external frame is provided with symmetrical transverse slot, buffer connecting rod is limited to slide in transverse slot, limiting shaft block is fixedly connected to the back of landing door, limiting shaft block is limited to slide to buffer connecting rod, limiting rod is connected in buffer connecting rod.When landing door is opened and moves to the limit position of transverse slot, clamping rod will be blocked by contact lever and then rotate, clamping rod is separated from the limiting of buffer connecting rod, and then buffer connecting rod will be reversely buffered to landing door by built-in torsion spring.

Description

Technical Field

[0001] This invention relates to an elevator landing door, and more particularly to an anti-collision elevator landing door. Background Technology

[0002] Elevator landing doors are an important component of elevator systems. Located on each floor of the elevator shaft, they separate the elevator shaft from other parts of the building, such as corridors or lobbies. The primary function of landing doors is to ensure passenger safety when entering and exiting the elevator, and to prevent people or objects from accidentally entering the elevator shaft while the elevator is in operation. Landing doors typically consist of a door panel, door frame, door lock, and door rollers. The door panel opens and closes by sliding up and down in grooves via the door rollers.

[0003] When the bottom track of the elevator landing door is shallow, it means that the support and guide structure at the bottom of the door panel is not robust enough. In this case, if the elevator landing door is impacted (for example, due to a passenger forcefully pushing the door panel or an object hitting the door panel), the bottom of the landing door may easily shift due to insufficient support. Shifting may cause the landing door to fail to close or lock properly, thus affecting the normal operation and safety performance of the elevator.

[0004] If the elevator landing door is severely displaced after an impact, it may collide with the elevator car. Such a collision could not only damage the elevator car (such as deformation of the car walls or damage to the interior decorations), but also affect the elevator's electrical system or mechanical components, leading to more serious safety issues. Furthermore, displaced landing doors could cause emergencies such as passengers being trapped inside the elevator or the elevator suddenly stopping, causing inconvenience and panic among passengers.

[0005] Based on the shortcomings of existing elevator landing door structures that are not stable enough and are prone to displacement, this invention proposes an anti-collision elevator landing door with a modified lateral movement structure to improve the stability of the elevator landing door. Summary of the Invention

[0006] In order to overcome the shortcomings of traditional elevator landing door structures that are not stable enough and are prone to displacement, leading to accidents, this invention provides a highly stable anti-collision elevator landing door.

[0007] The technical solution of the present invention is as follows: an anti-collision elevator landing door, comprising an outer frame, a landing door, and a control panel. The landing door slides in opposite directions within the outer frame. The control panel controls the landing door via a power device. The control panel is electrically connected to the elevator car. The device also includes a buffer mechanism and a limiting mechanism. The buffer mechanism consists of a buffer link, a limiting block, and a limiting rod. A symmetrical transverse groove is provided on the inner side of the outer frame. The buffer link slides within the transverse groove. A limiting block is fixed to the back of the landing door. The limiting block slides and limits the buffer link. The limiting rod is connected within the buffer link and restricts the synchronous rotation of the buffer link. The limiting mechanism is connected to the limiting rod and can fix the buffer link by a snap-fit ​​mechanism.

[0008] As a preferred embodiment of the present invention, the buffer link consists of two sets of links hinged to each other at their ends. A torsion spring is connected to the hinge of the buffer link, and a limiting rod is vertically connected to the end of the buffer link. The limiting rod and the buffer link are rotatably connected.

[0009] As a preferred embodiment of the present invention, the limiting mechanism consists of a locking rod, a return spring, and a contact rod. The locking rod is rotatably connected to the limiting rod. One end of the locking rod is connected to the buffer connecting rod through the return spring, and the other end is provided with a locking block. The connection of the buffer connecting rod is provided with a locking groove that can overlap with each other. The locking block can be embedded in the locking groove to limit and fix the buffer connecting rod. The contact rod is fixed to the external frame, and the locking rod can contact and be pushed to rotate by the contact rod.

[0010] As a preferred embodiment of the present invention, it further includes a snap-fit ​​rod and an insert rod, which are respectively fixed to the lower ends of the two side doors. The snap-fit ​​rod has a snap-fit ​​interface at its end, and the insert rod can be inserted into the snap-fit ​​rod by snap-fit.

[0011] As a preferred embodiment of the present invention, a buffer key is provided at the end of the embedding rod. The buffer key is composed of an embedding block and a strong magnet. An embedding block is slidably provided at the front end of the embedding rod, and a strong magnet is provided between the embedding block and the embedding rod.

[0012] As a preferred technical solution of the present invention, it also includes a sliding base, a warning railing, and a power component. The end of the warning railing is connected to the sliding base, which is slidably connected within the outer frame. The power component, located within the outer frame, drives the warning railing, enabling it to move to the middle of the outer frame. When the elevator needs maintenance, the warning railings on each floor can be moved synchronously without the need for manual placement of warning signs.

[0013] As a preferred embodiment of the present invention, the power assembly consists of a servo motor and a lead screw, with the output shaft of the servo motor connected to the lead screw, and the slide block connected to the lead screw via a thread.

[0014] As a preferred embodiment of the present invention, it also includes a sealing plate, which is rotatably connected to the outer frame and is specifically located at the lower end of the warning railing. The sliding block can contact and push the sealing plate to rotate.

[0015] As a preferred embodiment of the present invention, it further includes a pry bar, a transmission rod, and a transmission assembly. The pry bar is rotatably connected to the outer frame, and a transmission rod is hinged to one end of the pry bar. A transmission assembly is connected between the end of the transmission rod and the sealing plate. When the slide moves downward, it can push the pry bar to rotate. The pry bar pulls the transmission rod to move upward, and the transmission rod will drive one of the gears in the transmission assembly to rotate. The transmission assembly will drive the sealing plate to rotate and open, and the slide and warning railing will fall into the outer frame.

[0016] As a preferred embodiment of the present invention, the transmission assembly consists of two meshing gears, one of which is rotatably connected to the outer frame, and the other gear is connected to the rotating shaft of the sealing plate by a key.

[0017] Beneficial effects: When the landing door is opened and moves to the limit position of the transverse groove, the locking rod will be blocked by the contact rod and then rotate. The locking rod will disengage from the limit of the buffer link, and then the buffer link will buffer the landing door in the opposite direction through the built-in torsion spring, so that the landing door can quickly decelerate when it opens to the end of the transverse groove, preventing the landing door from colliding with the external frame. This not only reduces vibration and improves the safety of residents, but also increases the service life of the landing door. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the front of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the back of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the buffer linkage of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the clamp rod of the present invention.

[0022] Figure 5 This is a detailed three-dimensional structural view of point A in the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the snap-fit ​​rod and the insert rod of the present invention.

[0024] Figure 7 This is a detailed three-dimensional structural view of part B of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the warning railing of the present invention.

[0026] Figure 9This is a detailed three-dimensional structural view of point C in the present invention.

[0027] Wherein: 1-External frame, 101-Transverse groove, 2-Layer door, 3-Control panel, 4-Buffer link, 5-Limiting shaft block, 6-Limiting rod, 7-Clamping rod, 701-Reset spring, 702-Contact rod, 8-Clamping rod, 9-Embedding rod, 10-Buffer key, 11-Slide seat, 12-Warning railing, 13-Power assembly, 14-Sealing plate, 15-Pry bar, 16-Transmission rod, 17-Transmission assembly. Detailed Implementation

[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0029] Example: A collision-resistant elevator landing door, such as Figures 1-5 As shown, the system includes an outer frame 1, a landing door 2, and a control panel 3. The landing door 2 slides within the outer frame 1. The control panel 3 controls the landing door 2 via a power device and is electrically connected to the elevator car. It also includes a buffer mechanism and a limiting mechanism. The buffer mechanism consists of a buffer link 4, a limiting block 5, and a limiting rod 6. A symmetrical transverse groove 101 is provided on the inner side of the outer frame 1. The buffer link 4 slides within the transverse groove 101. The buffer link 4 consists of two sets of links hinged at their ends. A torsion spring is connected to the hinge of the buffer link 4. The limiting rod 6 is vertically connected to the end of the buffer link 4, and the limiting rod 6 is rotatably connected to the buffer link 4. A limiting block 5 is fixed to the back of the landing door 2, limiting the sliding movement of the buffer link 4. The limiting rod 6 is connected within the buffer link 4, restricting the synchronous rotation of the buffer link 4. The limiting mechanism is connected to the limiting rod 6 and can fix the buffer link 4 by a snap-fit ​​mechanism.

[0030] like Figure 4 and Figure 5As shown, the limiting mechanism consists of a locking rod 7, a return spring 701, and a contact rod 702. The locking rod 7 is rotatably connected to the limiting rod 6. One end of the locking rod 7 is connected to the buffer connecting rod 4 via the return spring 701, and the other end is provided with a locking block. The connection point of the buffer connecting rod 4 has overlapping slots, and the locking block can be embedded in the slots to limit and fix the buffer connecting rod 4. The contact rod 702 is fixed to the outer frame 1. The locking rod 7 can contact and be pushed to rotate by the contact rod 702. Specifically, because the buffer connecting rod 4 connects the landing door 2 and the outer frame 1, the buffer connecting rod... 4. The landing door 2 can only slide open in opposite directions. When the landing door 2 is closed, the latch 7 can engage with the buffer link 4 to prevent it from rotating. When the landing door 2 is opened and moves to the limit position of the transverse groove 101, the latch 7 will be blocked by the contact rod 702 and then rotate. The latch 7 will disengage from the limit of the buffer link 4, and then the buffer link 4 will buffer the landing door 2 in the opposite direction through the built-in torsion spring, so that the landing door 2 can quickly decelerate when it opens to the end of the transverse groove 101, preventing the landing door 2 from colliding with the outer frame 1. This not only reduces vibration but also improves the service life of the landing door 2.

[0031] like Figure 6 and Figure 7 As shown, it also includes a snap-fit ​​rod 8 and an insert rod 9. The snap-fit ​​rod 8 and the insert rod 9 are respectively fixed to the lower ends of the two landing doors 2. The snap-fit ​​rod 8 is provided with a snap-fit ​​interface at its end. The insert rod 9 can be inserted into the snap-fit ​​rod 8 by snap-fit. The insert rod 9 is provided with a buffer key 10 at its end. The buffer key 10 is composed of an insert block and a strong magnet. The insert block is slidably provided at the front end of the insert rod 9. A strong magnet is provided between the insert block and the insert rod 9. When the snap-fit ​​rod 8 and the insert rod 9 are combined, they can seal the lower end of the landing door 2, which can not only prevent foreign objects from entering the elevator shaft, but also improve the support for the landing door 2 and prevent the landing door 2 from vertically shifting after a collision, thereby improving the stability of the landing door 2.

[0032] like Figure 8 As shown, it also includes a slide 11, a warning railing 12, and a power assembly 13. The end of the warning railing 12 is connected to the slide 11, which is slidably connected inside the outer frame 1. The power assembly 13, which is located inside the outer frame 1, drives the warning railing 12. The power assembly 13 consists of a servo motor and a lead screw. The output shaft of the servo motor is connected to the lead screw, and the slide 11 is threadedly connected to the lead screw. After the servo motor is turned on, the warning railing 12 can move to the middle of the outer frame 1. When the elevator needs to be inspected, the warning railings 12 on each floor can be moved synchronously without the need for manual placement of warning signs.

[0033] like Figure 8 and Figure 9As shown, it also includes a sealing plate 14, which is rotatably connected to the outer frame 1 and is specifically located at the lower end of the warning railing 12. The slide block 11 can contact and push the sealing plate 14 to rotate.

[0034] like Figure 9 As shown, it also includes a pry bar 15, a transmission rod 16, and a transmission assembly 17. The pry bar 15 is rotatably connected to the outer frame 1. One end of the pry bar 15 is hinged to the transmission rod 16. The transmission assembly 17 is connected between the end of the transmission rod 16 and the sealing plate 14. When the slide block 11 moves downward, it can push the pry bar 15 to rotate. The pry bar 15 pulls the transmission rod 16 to move upward. The transmission rod 16 will drive one of the gears in the transmission assembly 17 to rotate. The transmission assembly 17 will drive the sealing plate 14 to rotate and open. The slide block 11 and the warning railing 12 will fall into the outer frame 1. The transmission assembly 17 consists of two meshing gears. One gear is rotatably connected to the outer frame 1, and the other gear is connected to the rotating shaft of the sealing plate 14 by a key.

[0035] The working principle of this invention embodiment: After the elevator arrives at the designated floor, the elevator car controls the landing door 2 to open synchronously via the control panel 3. After the landing door 2 slides open in opposite directions, because there is a buffer link 4 connecting the landing door 2 and the outer frame 1, the buffer link 4 restricts the landing door 2 to slide open only in opposite directions. When the landing door 2 is closed, the locking rod 7 can engage with the buffer link 4 to prevent it from rotating. When the landing door 2 moves to the limit position of the transverse groove 101 after opening, the locking rod 7 will be blocked by the contact rod 702 and then rotate. The locking rod 7 will disengage from the limit of the buffer link 4, and then the buffer link 4 will buffer the landing door 2 in the opposite direction through the built-in torsion spring, so that the landing door 2 opens to the transverse groove. When the elevator reaches the end of 101, it can quickly decelerate to prevent the landing door 2 from colliding with the outer frame 1. This not only reduces vibration but also improves the service life of the landing door 2. When the elevator needs to be inspected, the warning railing 12 can be raised by the power component 13. After the inspection is completed, the warning railing 12 can be retracted downward by the power component 13. When the slide 11 moves downward, it can push the pry bar 15 to rotate. The pry bar 15 pulls the transmission rod 16 to move upward. The transmission rod 16 will drive one of the gears in the transmission component 17 to rotate. The transmission component 17 will drive the sealing plate 14 to rotate and open. The slide 11 and the warning railing 12 will fall into the outer frame 1, and the sealing plate 14 will cover the warning railing 12.

[0036] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A collision-resistant elevator landing door, comprising an outer frame (1) and a landing door (2), wherein the landing door (2) slides in opposite directions within the outer frame (1), characterized in that: It also includes a buffer mechanism and a limiting mechanism. The buffer mechanism consists of a buffer link (4), a limiting shaft block (5), and a limiting rod (6). The inner side of the outer frame (1) is provided with a symmetrical transverse groove (101). The buffer link (4) is limited to slide in the transverse groove (101). The back of the door (2) is fixed with a limiting shaft block (5). The limiting shaft block (5) limits the sliding of the buffer link (4). The limiting rod (6) is connected in the buffer link (4). The limiting rod (6) restricts the buffer link (4) to rotate synchronously. The limiting mechanism is connected to the limiting rod (6). The limiting mechanism can fix the buffer link (4) by snap-fit. The buffer link (4) consists of two sets of links that are hinged to each other at their ends. A torsion spring is connected to the hinge of the buffer link (4). The limiting rod (6) is vertically connected to the end of the buffer link (4). The limiting rod (6) and the buffer link (4) are rotatably connected.

2. The anti-collision elevator landing door as described in claim 1, characterized in that: The limiting mechanism consists of a locking rod (7), a return spring (701), and a contact rod (702). The locking rod (7) is rotatably connected to the limiting rod (6). One end of the locking rod (7) is connected to the buffer connecting rod (4) through the return spring (701), and the other end is provided with a locking block. The connection of the buffer connecting rod (4) is provided with a locking groove that can overlap with each other. The locking block can be embedded in the locking groove to limit and fix the buffer connecting rod (4). The contact rod (702) is fixed to the outer frame (1). The locking rod (7) can contact and be pushed to rotate by the contact rod (702).

3. The anti-collision elevator landing door as described in claim 2, characterized in that: It also includes a snap-fit ​​rod (8) and an insert rod (9), which are fixed to the lower ends of the two side doors (2), respectively. The snap-fit ​​rod (8) has a snap-fit ​​interface at its end, and the insert rod (9) can be inserted into the snap-fit ​​rod (8) by snap-fit.

4. The anti-collision elevator landing door as described in claim 3, characterized in that: The end of the embedded rod (9) is provided with a buffer key (10), which is composed of an embedded block and a strong magnet. The front end of the embedded rod (9) is provided with an embedded block, and a strong magnet is provided between the embedded block and the embedded rod (9).

5. The anti-collision elevator landing door as described in claim 4, characterized in that: It also includes a slide (11), a warning railing (12) and a power unit (13). The end of the warning railing (12) is connected to the slide (11). The slide (11) is slidably connected inside the outer frame (1). The power unit (13) set inside the outer frame (1) drives the warning railing (12), and the warning railing (12) can move to the middle of the outer frame (1).

6. The anti-collision elevator landing door as described in claim 5, characterized in that: The power assembly (13) consists of a servo motor and a lead screw. The output shaft of the servo motor is connected to the lead screw, and the slide (11) is connected to the lead screw by a thread.

7. The anti-collision elevator landing door as described in claim 6, characterized in that: It also includes a sealing plate (14), which is rotatably connected to the outer frame (1) and is located at the lower end of the warning railing (12). The slide (11) can contact and push the sealing plate (14) to rotate.

8. The anti-collision elevator landing door as described in claim 7, characterized in that: It also includes a pry bar (15), a transmission rod (16) and a transmission assembly (17). The pry bar (15) is rotatably connected inside the outer frame (1). One end of the pry bar (15) is hinged to the transmission rod (16). The transmission assembly (17) is connected between the end of the transmission rod (16) and the sealing plate (14). The slide (11) can push the pry bar (15) to rotate.

9. The anti-collision elevator landing door as described in claim 8, characterized in that: The transmission assembly (17) consists of two meshing gears, one of which is rotatably connected inside the outer frame (1), and the other gear is connected to the shaft of the sealing plate (14) by a key.

Images