Anti-collision elevator landing door with elastic lock

Abstract

This utility model discloses an anti-collision elevator landing door with elastic locking, relating to the field of elevator equipment technology. It includes a slide rail, a first elevator landing door, and a second elevator landing door. The first and second elevator landing doors have mounting grooves inside, and anti-collision components are installed inside these grooves. The anti-collision components include a first mounting bracket, a first fixing post, a second mounting bracket, a second fixing post, and a mounting plate. The mounting plate is fixedly installed in the middle of the mounting groove wall, and the first and second mounting brackets are slidably installed on the inner wall of the mounting plate. In the technical solution provided by this utility model, a U / W-shaped composite mounting bracket combined with a multi-directional spring assembly is used to construct a three-dimensional elastic constraint system. When the landing door is closed, the first and second fixing posts automatically embed into the slide rail fixing groove under the preload of the springs, forming distributed mechanical locking points. When the door is subjected to a collision impact, the spring system can directionally absorb kinetic energy and effectively buffer the impact force through deformation displacement, preventing hard damage to the door structure.

Description

Technical Field

[0001] This utility model relates to the field of elevator equipment technology, and in particular to an anti-collision elevator landing door with elastic locking. Background Technology

[0002] As a core piece of equipment for vertical transportation within buildings, the safety performance of elevators directly impacts the lives of passengers. Traditional elevator door systems consist of car doors and landing doors, controlled by mechanical interlocks. However, existing door structures have significant shortcomings in responding to sudden collisions:

[0003] Firstly, conventional landing doors rely mainly on door lock contacts for positioning after closing, lacking a multi-directional elastic constraint mechanism. Under lateral impact loads, the door leaf is prone to displacement or deformation, leading to door lock failure and safety hazards.

[0004] Secondly, existing anti-collision structures mostly adopt rigid reinforcement methods, which can improve structural strength but significantly increase the weight of the door, resulting in increased load on the guide rail system and weakening the collision energy absorption capacity. Thirdly, some electromagnetic locking devices have problems such as complex structure and slow response, and are prone to contact wear under frequent opening and closing conditions, increasing maintenance costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an anti-collision elevator landing door with elastic locking, which can fix the first elevator landing door and the second elevator landing door when the elevator landing door is closed, so that the first elevator landing door and the second elevator landing door have a better anti-collision effect.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An anti-collision elevator landing door with elastic locking includes a slide rail, a first elevator landing door and a second elevator landing door that cooperate with each other. The first elevator landing door and the second elevator landing door have mounting grooves inside, and anti-collision components are installed in the mounting grooves.

[0008] The anti-collision assembly includes a mounting plate, a first mounting bracket, and a second mounting bracket, wherein:

[0009] The mounting plate is fixedly disposed in the middle of the wall of the mounting groove;

[0010] The first mounting bracket and the second mounting bracket are slidably mounted on both sides of the inner wall of the mounting plate;

[0011] The first mounting bracket is provided with a first fixing post facing the movable side of the door;

[0012] The second mounting bracket has several second fixing posts facing the movable side of the door.

[0013] Furthermore, the first mounting bracket is disposed above the mounting plate, and the second mounting bracket is disposed below the mounting plate.

[0014] Furthermore, the first mounting bracket is U-shaped, and the second mounting bracket is W-shaped.

[0015] Furthermore, a resilient connection mechanism is provided between the first mounting bracket and the second mounting bracket, including:

[0016] The first spring has its two ends fixedly connected to the adjacent side walls of the first mounting bracket and the second mounting bracket, respectively;

[0017] Multiple second springs are respectively connected to the adjacent sidewalls of the second mounting bracket and the first mounting bracket.

[0018] Furthermore, several locking blocks are provided at the docking edges of the first elevator landing door and the second elevator landing door.

[0019] Furthermore, the slide rail is provided with several fixing grooves, and the first elevator landing door and the second elevator landing door are connected to the slide rail through the connecting grooves to form a sliding fit.

[0020] Furthermore, the connecting groove is provided with a magnetic locking structure, which includes:

[0021] An iron block fixed in the connecting groove of the first elevator landing door;

[0022] The corresponding electromagnet is installed in the connecting slot of the second elevator landing door.

[0023] The beneficial effects of this utility model are:

[0024] 1. This utility model employs a U / W-shaped composite mounting bracket in conjunction with a multi-directional spring assembly to construct a three-dimensional elastic constraint system. When the door is closed, the first and second fixing posts automatically embed into the slide rail fixing grooves under the preload of the springs, forming distributed mechanical locking points. This design allows the spring system to directionally absorb kinetic energy when the door is subjected to impact, effectively buffering the impact force through deformation displacement and preventing hard damage to the door structure. An electromagnet-iron block coupling assembly is installed at the door joint surface, forming double protection with the mechanical locking. It can be activated the instant the door is fully closed, generating an adsorption force of ≥500N, significantly improving the shear resistance of the door joint surface.

[0025] 2. This utility model uses an electromagnet and an iron block. The electromagnet attracts the iron block to fix the first and second elevator doors after they are closed. The fixing structure is simple and not easily damaged.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a cross-sectional view of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the first mounting bracket and the second mounting bracket of this utility model;

[0030] Figure 4 This is a schematic diagram of the second fixed column structure of this utility model.

[0031] Explanation of reference numerals in the attached drawings: 1. First elevator landing door; 2. Second elevator landing door; 3. Block; 4. Slide rail; 5. Mounting groove; 6. First mounting bracket; 7. First fixing column; 8. Fixing groove; 9. First spring; 10. Second mounting bracket; 11. Second fixing column; 13. Second spring; 14. Electromagnet; 15. Mounting plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0033] The following describes in detail, with reference to the accompanying drawings, an embodiment of the present invention: an anti-collision elevator landing door with elastic locking. Example

[0034] For easier understanding, please refer to Figures 1 to 4This utility model provides an embodiment of an anti-collision elevator landing door with elastic locking, including a slide rail 4, a first elevator landing door 1, and a second elevator landing door 2. The first elevator landing door 1 and the second elevator landing door 2 have mounting grooves 5 inside, and anti-collision components are installed inside the mounting grooves 5. The anti-collision components include a first mounting frame 6, a first fixing post 7, a second mounting frame 10, a second fixing post 11, and a mounting plate 15. The mounting plate 15 is fixedly installed in the middle of the groove wall of the mounting groove 5. The first mounting frame 6 and the second mounting frame 10 are slidably installed on the inner wall of the mounting plate 15. The first fixing post 7 is fixedly installed on one side of the first mounting frame 6, and several second fixing posts 11 are fixedly installed on one side of the second mounting frame 10. The first mounting frame 6 is located above the mounting plate 15, and the second mounting frame 10 is located below the mounting plate 15. The first mounting frame 6 is U-shaped, and the second mounting frame 10 is W-shaped. The first fixing post... 7 and the second fixed column 11 have chamfers on both sides at one end. The two ends of the first mounting bracket 6 are located between the spaces formed by the corresponding outer walls on one side of the second mounting bracket 10. The first spring 9 and the second spring 13 are installed between the first mounting bracket 6 and the second mounting bracket 10. The first fixed column 7 and the second fixed column 11 are supported by the first spring 9 and the second spring 13 to extend out of the first elevator landing door 1 and the second elevator landing door 2 and be stuck in the fixing groove 8 on one side of the slide rail 4. When the elevator landing door is closed, the first elevator landing door 1 and the second elevator landing door 2 can be fixed, so that the first elevator landing door 1 and the second elevator landing door 2 have better anti-collision effect. Moreover, the first fixed column 7 and the second fixed column 11 have chamfers at one end. When the first elevator landing door 1 and the second elevator landing door 2 are opened, they will retract into the mounting groove 5 under the pressure of the groove wall of the fixing groove 8, which will not affect the opening and closing of the elevator landing door.

[0035] Among them, the first mounting bracket 6 is a U-shaped structure, which is formed by bending 3-5mm thick steel plate and is slidably sleeved on the upper half of the mounting plate 15;

[0036] The second mounting bracket 10 has a W-shaped corrugated structure with a corrugation spacing of 50-80mm, and is slidably sleeved on the lower half of the mounting plate 15.

[0037] In some embodiments, a first spring 9 is fixedly installed on one side of the first mounting bracket 6, and the other end of the first spring 9 is fixedly installed on one side of the second mounting bracket 10. A plurality of second springs 13 are fixedly installed on one side of the second mounting bracket 10, and the other end of the second springs 13 is fixedly installed on one side of the first mounting bracket 6. A plurality of locking blocks 3 are fixedly installed on one side of the first elevator landing door 1 and the second elevator landing door 2. When the built-in elevator inner door moves to the position of the first elevator landing door 1 and the second elevator landing door 2, the locking blocks 3 on the side of the first elevator landing door 1 and the second elevator landing door 2 are locked in the locking parts on the side of the elevator inner door, and the opening and closing of the first elevator landing door 1 and the second elevator landing door 2 are driven by the opening and closing of the elevator inner door.

[0038] In some embodiments, the first elevator landing door 1 and the second elevator landing door 2 are slidably installed on one side of the slide rail 4. A connecting groove is provided on one side of the first elevator landing door 1 and the second elevator landing door 2, and a plurality of fixing grooves 8 are provided on one side of the slide rail 4. An iron block is fixedly installed on the wall of the connecting groove on the side of the first elevator landing door 1, and an electromagnet 14 is fixedly installed on the wall of the connecting groove on the side of the second elevator landing door 2. The slide rail 4 is provided with two sections located at the two ends of the first elevator landing door 1 and the second elevator landing door 2, respectively. The slide rail 4 is fixed to the wall of the elevator passage by fixing bolts. By setting the electromagnet 14 and the iron block, the electromagnet 14 is activated to attract the iron block and fix the first elevator landing door 1 and the second elevator landing door 2 after they are closed. The fixing structure is simple and not easily damaged.

[0039] In this example, an infrared sensor can be installed on one side of the first elevator landing door 1. The infrared sensor is connected to the electromagnet 14 via a wire. The infrared sensor detects whether the elevator interior door is aligned with the first elevator landing door 1 and the second elevator landing door 2. After the first elevator landing door 1 and the second elevator landing door 2 are aligned with the elevator interior door, the electromagnet 14 is controlled to close. After the elevator interior door leaves, the electromagnet 14 is controlled to open.

[0040] The slide rail 4 is fixed to the elevator shaft wall by pre-embedded bolts. The fixing groove 8 is a rectangular groove with a depth of 10mm and a width that is 0.5mm larger than the diameter of the fixing column.

[0041] The electromagnet 14 involved in this embodiment can be freely configured according to the actual application scenario, and the electromagnet 14 works using methods commonly used in the prior art.

[0042] Among them, electromagnet 14 is of type HEL-12VDC with a suction force of 50N; the iron block is 8mm thick and 1mm apart from the electromagnet; the electromagnet control circuit is connected to the elevator main control system and is started and stopped synchronously by the door operator controller.

[0043] Furthermore, an infrared sensor (E3F-R2M1) is installed on the inner side of the top of the landing door to detect the alignment error between the car door and the landing door. When the error exceeds ±3mm, the PLC delays the electromagnet to cut off power for 0.5 seconds. A pressure sensor with a range of 0-200N is added to the bottom of the fixing slot 8. When the pressure does not reach 1.2 times the spring preload, an alarm is triggered and the elevator is locked.

[0044] Working principle: The elevator inner door closes via the locking block 3, and the fixing columns 7 and 11, under the action of springs, embed into the fixing groove 8 of the slide rail 4, forming a mechanical lock; simultaneously, the electromagnet 14 is energized to attract the iron block, completing double fixation. If the landing door is impacted by external force, the fixing columns 7 and 11 transmit the impact force to the spring, the spring compresses to absorb the energy, and the mounting brackets 6 and 10 slide along the mounting plate 15 with a maximum displacement of 5mm, avoiding structural damage. When the elevator inner door moves in the opposite direction, and the locking block 3 disengages, the side wall of the fixing groove 8 presses against the chamfered surface of the fixing column, forcing the mounting bracket to retract inward, and the spring to compress; the electromagnet 14 is simultaneously de-energized, and the landing door opens smoothly with the inner door.

[0045] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A collision-resistant elevator landing door with elastic locking, characterized in that: It includes a slide rail (4), a first elevator landing door (1) and a second elevator landing door (2) that cooperate with each other. The first elevator landing door (1) and the second elevator landing door (2) are provided with mounting grooves (5), and anti-collision components are provided in the mounting grooves (5). The anti-collision assembly includes a mounting plate (15), a first mounting bracket (6), and a second mounting bracket (10), wherein: The mounting plate (15) is fixedly disposed in the middle of the groove wall of the mounting groove (5); The first mounting bracket (6) and the second mounting bracket (10) are mounted on both sides of the inner wall of the mounting plate (15) in a sliding fit manner; The first mounting bracket (6) is provided with a first fixing post (7) facing the movable side of the floor door; The second mounting bracket (10) has several second fixing posts (11) facing the movable side of the floor door.

2. The anti-collision elevator landing door with elastic locking according to claim 1, characterized in that: The first mounting bracket (6) is disposed above the mounting plate (15), and the second mounting bracket (10) is disposed below the mounting plate (15).

3. The anti-collision elevator landing door with elastic locking according to claim 1, characterized in that: The first mounting bracket (6) is U-shaped, and the second mounting bracket (10) is W-shaped.

4. The anti-collision elevator landing door with elastic locking according to claim 1, characterized in that: An elastic connection mechanism is provided between the first mounting bracket (6) and the second mounting bracket (10), including: The first spring (9) has its two ends fixedly connected to the adjacent side walls of the first mounting bracket (6) and the second mounting bracket (10); Multiple second springs (13) are respectively connected to the adjacent sidewalls of the second mounting bracket (10) and the first mounting bracket (6).

5. A collision-resistant elevator landing door with elastic locking as described in claim 1, characterized in that: Several locking blocks (3) are provided at the docking edges of the first elevator landing door (1) and the second elevator landing door (2).

6. A collision-resistant elevator landing door with elastic locking as described in claim 1, characterized in that: The slide rail (4) has several fixed grooves (8), and the first elevator landing door (1) and the second elevator landing door (2) are connected to the slide rail (4) through the connecting groove to form a sliding fit.

7. A collision-resistant elevator landing door with elastic locking as described in claim 6, characterized in that: The connecting groove is provided with a magnetic locking structure, which includes: An iron block fixed in the connecting groove of the first elevator landing door (1); The electromagnet (14) is installed in the connecting groove of the second elevator landing door (2).

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