Elevator landing door anti-collision protection device

Abstract

This utility model relates to the field of elevator technology and discloses an elevator landing door anti-collision protection device, including an elevator landing door. A mounting groove is provided on the right side of the elevator landing door, and rectangular blocks extending to the right side of the elevator landing door are provided at both the upper and lower ends of the left side wall of the mounting groove. This elevator landing door anti-collision protection device uses a protective plate and anti-scratch pad on the right side of the elevator landing door to withstand external impacts. When an impact occurs, the protective plate moves to the left, compressing two first buffer springs. Simultaneously, two connecting rods drive two sliders to move relative to each other, compressing a second buffer spring. The elastic force of the buffer springs degrades the impact force, thus buffering and protecting the elevator landing door, minimizing damage or deformation, and ensuring the normal operation of the elevator.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator landing door anti-collision protection device. Background Technology

[0002] Elevator landing doors are located at the entrance of each landing and serve as the passage for passengers or goods to enter and exit the elevator. When the elevator car is on another landing or the car door is closed, the landing doors remain closed, ensuring that people, animals, or objects do not accidentally enter the elevator shaft. However, in actual use, existing elevator landing doors are frequently subjected to external impacts, which can easily lead to damage or deformation. This increases elevator maintenance costs and the danger of elevator use, and can also affect the normal operation of the elevator. Therefore, an elevator landing door anti-collision protection device is proposed. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, this utility model provides an elevator landing door anti-collision protection device, which has the advantages of anti-collision protection for elevator landing doors. It solves the problem that in the actual use of existing elevator landing doors, due to frequent external impacts, the elevator landing doors are prone to damage or deformation, which increases the maintenance cost and danger of elevator use, and also affects the normal operation of the elevator.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned purpose of providing anti-collision protection for elevator landing doors, this utility model provides the following technical solution: An elevator landing door anti-collision protection device includes an elevator landing door. A mounting groove is provided on the right side of the elevator landing door. Rectangular blocks extending to the right side of the elevator landing door are provided at both the upper and lower ends of the left side of the inner wall of the mounting groove. Rectangular holes are provided on the right sides of both rectangular blocks. Movable blocks extending to the right sides of the two rectangular blocks are provided inside each of the two rectangular holes. Limiting grooves are provided on opposite sides of the two movable blocks. Limiting blocks are provided on the left side of the inner walls of the opposite sides of the two rectangular holes, with one end fixedly connected to the inner wall of the opposite side of each of the two limiting grooves. A protective plate is provided on the right side of the top movable block, with one end fixedly connected to the right side of the bottom movable block. Connecting grooves are provided at both the upper and lower ends of the right side of the protective plate. Connecting blocks are provided inside each of the two connecting grooves. One end of the top connecting block is attached to the right side of the protective plate, and the other end is fixedly connected to the right side of the bottom connecting block. The anti-scratch pad is connected to the mounting groove. Two first buffer springs, symmetrically distributed vertically, are located on opposite sides of two rectangular blocks between the left side of the mounting groove's inner wall and the left side of the protective plate. Two mounting blocks, symmetrically distributed vertically, are located between the two first buffer springs on the left side of the mounting groove's inner wall. A buffer assembly, with one end movably connected to the left side of the mounting groove's inner wall and the other end movably connected to the left side of the protective plate, is located between the two mounting blocks. Rectangular grooves on the protective plate are connected to the opposite inner walls of the two connecting grooves. Threaded rods are located on the opposite inner walls of the two rectangular grooves. Positioning grooves are located on the opposite sides of the two connecting blocks. Positioning blocks, with one end threaded to the outside of the two threaded rods and the other end extending into the two positioning grooves, are located inside each of the two rectangular grooves. Rotating assemblies, with one end movably connected to the right side of the inner wall of the two rectangular grooves and the other end extending to the left side of the protective plate, are located on the outside of each of the two threaded rods.

[0007] Preferably, the buffer assembly includes a mounting rod, which is fixedly installed between the two mounting blocks. A slider is movably installed at both the upper and lower ends of the outer side of the mounting rod, with one end movably connected to the left side of the inner wall of the mounting groove. A second buffer spring located on the outer side of the mounting rod is fixedly installed between the two sliders. A connecting rod is movably installed on the right side of each of the two sliders, with one end movably connected to the left side of the protective plate.

[0008] Preferably, the rotating assembly includes worm gears, and worm gears located on opposite sides of the two positioning blocks are fixedly installed on the outer sides of the two threaded rods. A worm is movably installed on the right side of the inner wall of each of the two rectangular grooves, with one end meshing with the two worm gears and the other end extending to the left side of the protective plate. A handwheel is fixedly installed on the left side of each of the two worms.

[0009] Preferably, rotating blocks are fixedly installed at the upper and lower ends of the right side of the two sliders and the left side of the protective plate, and the connecting rod is movably connected to the slider and the protective plate respectively through the rotating blocks.

[0010] Preferably, a first bearing is fixedly installed on the inner wall of each of the two rectangular grooves on opposite sides, and the threaded rod is rotatably connected to the inner wall of the rectangular groove through the first bearing. Threaded grooves that are adapted to the two threaded rods are opened on the opposite sides of the two positioning blocks.

[0011] Preferably, a second bearing is fixedly installed on the right side of the inner wall of each of the two rectangular grooves, located on opposite sides of the two positioning blocks, and the worm gear is rotatably connected to the right side of the inner wall of the rectangular groove through the second bearing.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides an elevator landing door anti-collision protection device, which has the following beneficial effects:

[0014] 1. This elevator landing door anti-collision protection device uses a protective plate and anti-scratch pad installed on the right side of the elevator landing door. The anti-scratch pad and protective plate absorb external impacts. When an impact occurs, the protective plate moves to the left, compressing the two first buffer springs. At the same time, two connecting rods drive two sliders to move relative to each other, compressing the second buffer spring. The elasticity of the buffer springs degrades the impact force, thus buffering and protecting the elevator landing door and minimizing damage or deformation, thereby ensuring the normal operation of the elevator.

[0015] 2. This elevator landing door anti-collision protection device rotates two worm gears by turning two handwheels, which in turn rotate two threaded rods through two worm wheels. This causes two positioning blocks to move in opposite directions, so that the two positioning blocks are removed from the two positioning slots. This releases the fixation between the two connecting blocks and the protective plate. At this point, pulling the anti-scratch pad to the right will remove it from the protective plate, making it convenient to replace the anti-scratch pad. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial structural diagram of the connection between the top moving block and the protective plate;

[0018] Figure 3 This utility model Figure 2 A partial structural diagram of the connection between the top connecting block and the protective plate.

[0019] In the diagram: 1. Elevator landing door; 2. Mounting groove; 3. Rectangular block; 4. Rectangular hole; 5. Moving block; 6. Limiting groove; 7. Limiting block; 8. Protective plate; 9. Connecting groove; 10. Connecting block; 11. Anti-scratch pad; 12. First buffer spring; 13. Mounting block; 14. Buffer assembly; 141. Mounting rod; 142. Slider; 143. Second buffer spring; 144. Connecting rod; 15. Rectangular groove; 16. Threaded rod; 17. Positioning groove; 18. Positioning block; 19. Rotating assembly; 191. Worm gear; 192. Worm; 193. Handwheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: an elevator landing door anti-collision protection device, including an elevator landing door 1, an installation groove 2 is provided on the right side of the elevator landing door 1, and a rectangular block 3 with one end extending to the right side of the elevator landing door 1 is fixedly installed at both the upper and lower ends of the left side of the inner wall of the installation groove 2. A rectangular hole 4 is provided on the right side of each of the two rectangular blocks 3, and a movable block 5 with one end extending to the right side of each of the two rectangular holes 4 is movably installed inside each of the two rectangular holes 4. A limit groove 6 is provided on the opposite side of each of the two movable blocks 5, and a limit block 7 with one end fixedly connected to the inner wall of the opposite side of each of the two limit grooves 6 is movably installed on the left side of each of the two limit grooves 6. A protective plate 8 with one end fixedly connected to the right side of the bottom movable block 5 is fixedly installed on the right side of the top movable block 5. A connecting groove 9 is provided at both the upper and lower ends of the right side of the protective plate 8, and a connecting block 10 is movably installed inside each of the two connecting grooves 9. An anti-scratch pad 11 with one end attached to the right side of the protective plate 8 and the other end fixedly connected to the right side of the bottom connecting block 10 is fixedly installed on the right side of the top connecting block 10.

[0022] Two first buffer springs 12 are fixedly installed on the left side of the inner wall of the mounting groove 2 and the left side of the protective plate 8, located on opposite sides of the two rectangular blocks 3 and symmetrically distributed vertically. Two mounting blocks 13 are fixedly installed on the left side of the inner wall of the mounting groove 2, located between the two first buffer springs 12 and symmetrically distributed vertically.

[0023] A buffer assembly 14 is fixedly installed between two mounting blocks 13, with one end movably connected to the left side of the inner wall of the mounting groove 2 and the other end movably connected to the left side of the protective plate 8. The buffer assembly 14 includes a mounting rod 141. The mounting rod 141 is fixedly installed between the two mounting blocks 13. A slider 142 is movably installed at both the upper and lower ends of the outer side of the mounting rod 141, with one end movably connected to the left side of the inner wall of the mounting groove 2. The interior of each slider 142 is provided with a mounting hole that matches the mounting rod 141. A second buffer spring 143 is fixedly installed between the two sliders 142, located on the outer side of the mounting rod 141. A connecting rod 144 is movably installed at both the right side of each slider 142, with one end movably connected to the left side of the protective plate 8. Rotating blocks are fixedly installed at both the upper and lower ends of the right side of each slider 142 and the left side of the protective plate 8. The connecting rod 144 is movably connected to the slider 142 and the protective plate 8 respectively through the rotating blocks.

[0024] Both connecting grooves 9 have rectangular grooves 15 on their opposite inner walls connected to the protective plate 8. Threaded rods 16 are movably installed on the opposite inner walls of both rectangular grooves 15. Positioning grooves 17 are provided on the opposite sides of both connecting blocks 10. Positioning blocks 18 are movably installed inside both rectangular grooves 15, with one end threaded to the outside of the two threaded rods 16 and the other end extending into the two positioning grooves 17. First bearings are fixedly installed on the opposite inner walls of both rectangular grooves 15. The threaded rods 16 are rotatably connected to the inner walls of the rectangular grooves 15 through the first bearings. Threaded grooves that are adapted to the two threaded rods 16 are provided on the opposite sides of both positioning blocks 18.

[0025] Two threaded rods 16 are each fixedly mounted with a rotating assembly 19, one end of which is movably connected to the right side of the inner wall of the two rectangular grooves 15 and the other end of which extends to the left side of the protective plate 8. The rotating assembly 19 includes a worm gear 191. Two threaded rods 16 are each fixedly mounted with a worm gear 191 located on opposite sides of the two positioning blocks 18. Two rectangular grooves 15 are each movably mounted with a worm 192 located on opposite sides of the inner wall of the two rectangular grooves 15, one end of which meshes with the two worm gears 191 and the other end of which extends to the left side of the protective plate 8. Two rectangular grooves 15 are each fixedly mounted with a second bearing located on opposite sides of the two positioning blocks 18. The worm 192 is rotatably connected to the right side of the inner wall of the rectangular groove 15 through the second bearing. Two worm 192 are each fixedly mounted with a handwheel 193 on the left side.

[0026] Working principle: By installing a protective plate 8 and an anti-scratch pad 11 on the right side of the elevator landing door 1, the anti-scratch pad 11 and the protective plate 8 can withstand external impacts. When an impact occurs, the protective plate 8 will move to the left, thereby compressing the two first buffer springs 12. At the same time, the two connecting rods 144 will drive the two sliders 142 to move relative to each other, thereby compressing the second buffer spring 143. The elastic force of the buffer springs will degrade the impact force, thus buffering and protecting the elevator landing door 1 and minimizing damage or deformation to the elevator landing door 1, thereby ensuring the elevator's safety. Normal operation is not possible. Because the anti-scratch pad 11 has a large contact area with the outside world, it is easily damaged. When the anti-scratch pad 11 is damaged, the two handwheels 193 can be turned to drive the two worm gears 192 to rotate, which in turn drives the two threaded rods 16 to rotate through the two worm wheels 191. This causes the two positioning blocks 18 to move in opposite directions, so that the two positioning blocks 18 can be moved out of the two positioning grooves 17 respectively, thereby releasing the fixation between the two connecting blocks 10 and the protective plate 8. At this time, the anti-scratch pad 11 can be removed from the protective plate 8 by pulling it to the right, which facilitates the replacement of the anti-scratch pad 11.

[0027] In summary, this elevator landing door anti-collision protection device, by installing a protective plate 8 and an anti-scratch pad 11 on the right side of the elevator landing door 1, uses the anti-scratch pad 11 and the protective plate 8 to withstand external impacts. When an impact occurs, the protective plate 8 moves to the left, compressing the two first buffer springs 12. Simultaneously, the two connecting rods 144 drive the two sliders 142 to move relative to each other, compressing the second buffer spring 143. The elasticity of the buffer springs degrades the impact force, thus buffering and protecting the elevator landing door 1, minimizing damage or deformation, and ensuring the normal operation of the elevator. Furthermore, by turning the two handwheels 193... The two worm gears 192 rotate, which in turn drives the two threaded rods 16 to rotate via the two worm wheels 191. This causes the two positioning blocks 18 to move in opposite directions, allowing them to move out of the two positioning slots 17. This releases the connection between the two connecting blocks 10 and the protective plate 8. At this point, pulling the anti-scratch pad 11 to the right allows it to be removed from the protective plate 8, facilitating its replacement. This solves the problem that existing elevator landing doors are prone to damage or deformation due to frequent external impacts, increasing maintenance costs and posing a safety hazard, and affecting normal elevator operation.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator landing door anti-collision protection device, comprising an elevator landing door (1), characterized in that: An installation groove (2) is provided on the right side of the elevator landing door (1). A rectangular block (3) extending to the right side of the elevator landing door (1) is provided at both the upper and lower ends of the left side of the inner wall of the installation groove (2). A rectangular hole (4) is provided on the right side of each of the two rectangular blocks (3). A movable block (5) extending to the right side of each of the two rectangular holes (4) is provided inside each of the two rectangular holes (4). A limiting groove (6) is provided on the opposite side of each of the two movable blocks (5). A limiting groove (6) is provided on the left side of the inner side of each of the two limiting grooves (6), with one end facing the opposite side of each of the two rectangular holes (4). A limiting block (7) is fixedly connected to the wall. A protective plate (8) is provided on the right side of the top movable block (5), with one end fixedly connected to the right side of the bottom movable block (5). Both the upper and lower ends of the right side of the protective plate (8) are provided with connecting grooves (9). A connecting block (10) is provided inside each of the two connecting grooves (9). An anti-scratch pad (11) is provided on the right side of the top connecting block (10), with one end fitting against the right side of the protective plate (8) and the other end fixedly connected to the right side of the bottom connecting block (10). A space is provided between the left side of the inner wall of the mounting groove (2) and the left side of the protective plate (8). Two first buffer springs (12) are located on opposite sides of the two rectangular blocks (3) and are symmetrically distributed vertically. Two mounting blocks (13) are located between the two first buffer springs (12) and are symmetrically distributed vertically. A buffer assembly (14) is provided between the two mounting blocks (13), with one end movably connected to the left side of the inner wall of the mounting groove (2) and the other end movably connected to the left side of the protective plate (8). Rectangular grooves (15) provided on the protective plate (8) are connected to the inner walls of the opposite sides of the two connecting grooves (9). ), each of the two rectangular grooves (15) has a threaded rod (16) on its opposite inner wall, and each of the two connecting blocks (10) has a positioning groove (17) on its opposite side. Each of the two rectangular grooves (15) has a positioning block (18) with one end threaded to the outside of the two threaded rods (16) and the other end extending into the inside of the two positioning grooves (17). Each of the two threaded rods (16) has a rotating assembly (19) with one end movably connected to the right side of the inner wall of the two rectangular grooves (15) and the other end extending into the left side of the protective plate (8).

2. The elevator landing door anti-collision protection device according to claim 1, characterized in that: The buffer assembly (14) includes a mounting rod (141), which is fixedly installed between the two mounting blocks (13). A slider (142) is movably installed at both the upper and lower ends of the outer side of the mounting rod (141), with one end movably connected to the left side of the inner wall of the mounting groove (2). A second buffer spring (143) located outside the mounting rod (141) is fixedly installed between the two sliders (142). A connecting rod (144) is movably installed on the right side of the two sliders (142), with one end movably connected to the left side of the protective plate (8).

3. The elevator landing door anti-collision protection device according to claim 1, characterized in that: The rotating assembly (19) includes a worm gear (191). The outer sides of the two threaded rods (16) are fixedly mounted with worm gears (191) located on opposite sides of the two positioning blocks (18). The inner right sides of the inner walls of the two rectangular grooves (15) are each movably mounted with a worm (192) whose end is respectively engaged with the two worm gears (191) and whose other end extends to the left side of the protective plate (8). The left sides of the two worms (192) are fixedly mounted with handwheels (193).

4. The elevator landing door anti-collision protection device according to claim 2, characterized in that: Rotating blocks are fixedly installed on the upper and lower ends of the right side of the two sliders (142) and the left side of the protective plate (8). The connecting rod (144) is movably connected to the sliders (142) and the protective plate (8) respectively through the rotating blocks.

5. The elevator landing door anti-collision protection device according to claim 1, characterized in that: First bearings are fixedly installed on the inner walls of the opposite sides of the two rectangular grooves (15). The threaded rod (16) is rotatably connected to the inner wall of the rectangular groove (15) through the first bearing. The opposite sides of the two positioning blocks (18) are provided with threaded grooves that are adapted to the two threaded rods (16).

6. The elevator landing door anti-collision protection device according to claim 3, characterized in that: The inner walls of the two rectangular grooves (15) are each fixedly installed with a second bearing located on the opposite side of the two positioning blocks (18). The worm (192) is rotatably connected to the inner wall of the rectangular groove (15) through the second bearing.

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