Top rushing protection mechanism for elevator

Abstract

The utility model relates to the technical field of elevator protection, and discloses a top rushing protection mechanism for an elevator, which comprises an elevator shaft, an elevator car is arranged on the inner side of the elevator shaft, fixing boxes are fixedly mounted at the left end and the right end of the elevator car, and limiting rods are fixedly mounted on the inner sides of the fixing boxes. A positioning plate is fixedly mounted at the upper end of the limiting rod, a reset spring is fixedly mounted at the lower end of the positioning plate, and the lower end of the reset spring is fixedly connected with the elevator car. According to the top rushing protection mechanism for the elevator, when a positioning plate touches a buffer pad, the positioning plate pushes a limiting rod to slide along a fixing box, a pushing block pushes a sliding block to move along a sliding groove, the sliding block and a fixing groove are clamped, and therefore fixing of an elevator box is completed, safety is improved, and when the elevator returns to normal operation, the safety of the elevator is improved. And the sliding blocks are retracted along the sliding grooves through the limiting springs, so that fixation of the elevator car and the elevator shaft is relieved, and maintenance personnel can work conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator protection, in particular to a top impact protection mechanism for an elevator. Background Art

[0002] An elevator is a vertical lift powered by an electric motor, equipped with a box-shaped cabin, used for carrying people or goods in multi-story buildings. A vertical lift has a car that runs between at least two vertical rigid guide rails. The size and structure of the car are convenient for passengers to enter and exit or load and unload goods. It is customary to use elevators as a general term for vertical transportation tools in buildings regardless of their driving mode. Now, with the increasing frequency of elevator use, the protection of elevators is becoming more and more important.

[0003] At present, most of the protection for elevators on the market is focused on fall protection, and there is no special mechanism for protection against top impact. However, top impact accidents are also very harmful to elevators and personnel, and elevators need to be repaired after an accident. However, most existing structures cannot self-adjust after an accident and can only be fixed in place continuously, which makes it inconvenient for maintenance personnel to check and has low efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a top impact protection mechanism for an elevator, which solves the problem that there is no special mechanism for protecting against top impact and the elevator needs to be repaired after an accident occurs, but the existing structures are mostly unable to self-adjust after an accident occurs and can only be continuously fixed in place, which is inconvenient for maintenance personnel to check and has low efficiency.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a top impact protection mechanism for an elevator, comprising an elevator shaft, an elevator box is arranged on the inner side of the elevator shaft, a top plate is fixedly installed on the upper end of the elevator shaft, a buffer box is fixedly installed on the lower end of the top plate, a fixed column is slidably connected to the lower end of the buffer box, a buffer pad is fixedly installed on the lower end of the fixed column, fixed boxes are fixedly installed on the left and right ends of the elevator box, a limit rod is fixedly installed on the inner side of the fixed box, a positioning plate is fixedly installed on the upper end of the limit rod, a return spring is fixedly installed on the lower end of the positioning plate, and the lower end of the return spring is fixedly connected to the elevator box.

[0006] Preferably, a steel cable is provided at the upper end of the top plate, the lower end of the steel cable extends to below the buffer pad and is fixedly connected to the elevator box, and can be used to control the lifting and lowering of the elevator box.

[0007] Preferably, the upper end of the fixed column extends to the inner side of the buffer box, a buffer spring is sleeved on the surface of the fixed column, the upper end of the buffer spring is fixedly connected to the buffer box, and the lower end of the buffer spring is fixedly connected to the buffer pad, which can greatly reduce the impact force caused by the collision.

[0008] Preferably, a connecting plate is provided on the inner side of the buffer box, the lower end of the connecting plate is fixedly connected to a fixing column, and an airbag column is provided on the upper end of the connecting plate. The airbag columns are distributed at equal intervals and can effectively reduce the impact speed.

[0009] Preferably, a limit plate is fixedly installed at one end of the elevator shaft close to the elevator, and a fixing groove is opened on the surface of the limit plate, which can be used to fix the elevator shaft and the elevator box.

[0010] Preferably, a pushing block is fixedly installed at the lower end of the limiting rod, and the pushing blocks are distributed at equal intervals. A sliding groove is opened at the lower end of the fixed box, and a slider is slidably connected in the sliding groove. The slider and the fixed groove correspond one to one, and the fitting surfaces of the slider and the pushing block are both designed with inclined structures, so as to complete the pushing of the slider and combine with the fixed groove.

[0011] Preferably, a limit spring is fixedly installed at one end of the slider close to the elevator box, and the other end of the limit spring is fixedly connected to a fixing box. After the elevator is restored, the slider can be retracted to release the fixation of the elevator shaft and the elevator box.

[0012] The utility model provides a mobile scissor lift with a locking structure. Compared with the prior art, it has the following beneficial effects:

[0013] 1. The top impact protection mechanism for the elevator is provided with a fixed box, a limit plate and a positioning plate, etc. When the positioning plate touches the buffer pad, the positioning plate pushes the limit rod to slide along the fixed box, and the push block pushes the slider to move along the slide groove, and the slider and the fixed groove are engaged, so as to complete the fixation of the elevator box, improve the safety, and when the elevator resumes normal operation, the slider is retracted along the slide groove by the limit spring, so as to release the fixation of the elevator box and the elevator shaft, which is convenient for maintenance personnel to work and improves convenience.

[0014] 2. The elevator top impact protection mechanism is provided with a buffer box, a buffer pad and a buffer spring. When the elevator top impact accident occurs, the elevator will first collide with the buffer pad, and then the buffer pad will push the fixed column to move toward the buffer box, and the buffer spring will reduce the impact force of the collision. The fixed column pushes the connecting plate to squeeze the airbag column, so that the impact force of the elevator box top impact is reduced, which can effectively protect the elevator shaft and the elevator box, reduce the degree of damage caused by the top impact, and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the buffer component of the utility model;

[0018] Figure 4 It is a schematic diagram of the planar section structure of the limit assembly of the utility model;

[0019] Figure 5 For this utility model Figure 4 An enlarged schematic diagram of point A.

[0020] In the figure: 1. elevator shaft; 2. elevator box; 3. top plate; 4. buffer box; 41. connecting plate; 42. airbag column; 5. fixing column; 51. buffer spring; 6. buffer pad; 7. fixing box; 71. slide groove; 72. slider; 73. limit spring; 8. limit rod; 81. push block; 9. positioning plate; 10. reset spring; 11. steel cable; 12. limit plate; 13. fixing groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a top impact protection mechanism for an elevator, comprising an elevator shaft 1, an elevator box 2 is arranged inside the elevator shaft 1, a top plate 3 is fixedly installed on the upper end of the elevator shaft 1, a buffer box 4 is fixedly installed on the lower end of the top plate 3, a fixed column 5 is slidably connected to the lower end of the buffer box 4, a buffer pad 6 is fixedly installed on the lower end of the fixed column 5, the upper end of the fixed column 5 extends to the inner side of the buffer box 4, a buffer spring 51 is sleeved on the surface of the fixed column 5, and the upper end of the buffer spring 51 is fixedly connected to the buffer box 4 The lower end of the buffer spring 51 is fixedly connected to the buffer pad 6, a connecting plate 41 is arranged on the inner side of the buffer box 4, the lower end of the connecting plate 41 is fixedly connected to the fixed column 5, and the upper end of the connecting plate 41 is arranged with an airbag column 42, and the airbag columns 42 are distributed at equal intervals. When a top collision accident occurs, the fixed column 5 is pushed toward the buffer box 4 by the buffer pad 6, and the connecting plate 41 squeezes the airbag column 42 inwardly, and under the action of the buffer spring 51, the impact force of the top collision is reduced, and the equipment or personnel are protected, thereby improving the practicality;

[0023] A steel cable 11 is provided at the upper end of the top plate 3, and the lower end of the steel cable 11 extends to the bottom of the buffer pad 6 and is fixedly connected to the elevator box 2. The left and right ends of the elevator box 2 are fixedly installed with fixed boxes 7, and the inner side of the fixed box 7 is fixedly installed with a limit rod 8. The lower end of the limit rod 8 is fixedly installed with a push block 81, and the push blocks 81 are distributed at equal intervals. A slide groove 71 is provided at the lower end of the fixed box 7, and a slider 72 is slidably connected in the slide groove 71. The slider 72 corresponds to the fixed groove 13 one by one, and the slider 72 and the push block 8 The fitting surfaces of the elevator shaft 1 are all designed with inclined structures. A push block 81 is fixedly installed at the lower end of the limit rod 8. The push blocks 81 are distributed at equal intervals. A limit plate 12 is fixedly installed at one end of the elevator shaft 1 close to the elevator box 2. A fixing groove 13 is opened on the surface of the limit plate 12. The limit rod 8 is pushed downward along the fixing box 7 by the positioning plate 9, so that the push block 81 pushes the slider 72 to slide along the slide groove 71 and engages with the fixing groove 13, thereby completing the fixation of the elevator shaft 1 and the elevator box 2, thereby improving safety.

[0024] The upper end of the limit rod 8 is fixedly installed with a positioning plate 9, the lower end of the positioning plate 9 is fixedly installed with a return spring 10, the lower end of the return spring 10 is fixedly connected to the elevator box 2, the slider 72 is fixedly installed with a limit spring 73 at one end close to the elevator box 2, and the other end of the limit spring 73 is fixedly connected to the fixed box 7. After the elevator returns to normal, the elevator box 2 drives the positioning plate 9 to move downward synchronously, so that the return spring 10 drives the limit rod 8 to reset, so that the slider 72 is retracted from the fixed groove 13 along the slide groove 71 under the action of the limit spring 73, thereby releasing the fixation of the elevator shaft 1 and the elevator box 2, which is convenient for the maintenance personnel to work. Improved convenience.

[0025] During operation, when the elevator box 2 hits the top, the positioning plate 9 and the buffer pad 6 contact each other, and the buffer pad 6 pushes the fixed column 5 to move toward the buffer box 4, and the fixed column 5 synchronously drives the connecting plate 41 to squeeze the airbag column 42 inward, and under the action of the buffer spring 51, the impact force of the entire elevator box 2 hitting the top is reduced, which is convenient for protecting equipment and personnel and improving convenience. At the same time as the positioning plate 9 and the buffer pad 6 are in contact, the positioning plate 9 pushes the limit rod 8 to move downward, so that the push block 81 pushes the slider 72 along the slide groove 71 The slider 72 and the fixing groove 13 are engaged with each other by sliding, thereby completing the fixation of the elevator box 2 and the elevator shaft 1, and realizing the protection of personnel and equipment. When the elevator box 2 resumes normal operation, the positioning plate 9 and the buffer pad 6 are separated, and under the action of the reset spring 10, the positioning plate 9 synchronously drives the limit rod 8 to reset, so that the slider 72 slides along the slide groove 71 under the action of the limit spring 73, and the top is retracted from the fixing groove 13, thereby releasing the fixation of the elevator box 2 and the elevator shaft 1, making it convenient for the staff to carry out maintenance and improving convenience.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A head impact protection mechanism for an elevator, comprising an elevator shaft (1), characterized in that: An elevator box (2) is arranged inside the elevator shaft (1); a top plate (3) is fixedly mounted on the upper end of the elevator shaft (1); a buffer box (4) is fixedly mounted on the lower end of the top plate (3); a fixing column (5) is slidably connected to the lower end of the buffer box (4); a buffer pad (6) is fixedly mounted on the lower end of the fixing column (5); a fixing box (7) is fixedly mounted on both left and right ends of the elevator box (2); a limit rod (8) is fixedly mounted on the inner side of the fixing box (7); a positioning plate (9) is fixedly mounted on the upper end of the limit rod (8); a return spring (10) is fixedly mounted on the lower end of the positioning plate (9); and the lower end of the return spring (10) is fixedly connected to the elevator box (2).

2. A head impact protection mechanism for an elevator according to claim 1, characterized in that: A steel cable (11) is provided at the upper end of the top plate (3), and the lower end of the steel cable (11) extends to below the buffer pad (6) and is fixedly connected to the elevator car (2).

3. The elevator head impact protection mechanism according to claim 1, characterized in that: The upper end of the fixing column (5) extends to the inner side of the buffer box (4); a buffer spring (51) is sleeved on the surface of the fixing column (5); the upper end of the buffer spring (51) is fixedly connected to the buffer box (4); and the lower end of the buffer spring (51) is fixedly connected to the buffer pad (6).

4. The elevator head impact protection mechanism according to claim 1, characterized in that: A connecting plate (41) is provided on the inner side of the buffer box (4), the lower end of the connecting plate (41) is fixedly connected to the fixing column (5), and an airbag column (42) is provided on the upper end of the connecting plate (41), and the airbag columns (42) are distributed at equal intervals.

5. The elevator head impact protection mechanism according to claim 1, characterized in that: A limit plate (12) is fixedly mounted on one end of the elevator shaft (1) close to the elevator car (2), and a fixing groove (13) is provided on the surface of the limit plate (12).

6. The elevator head impact protection mechanism according to claim 1, characterized in that: A push block (81) is fixedly mounted on the lower end of the limit rod (8), and the push blocks (81) are distributed at equal intervals. A slide groove (71) is provided at the lower end of the fixed box (7), and a slider (72) is slidably connected in the slide groove (71). The slider (72) and the fixed groove (13) correspond one to one, and the fitting surfaces of the slider (72) and the push block (81) are both designed as inclined structures.

7. A head impact protection mechanism for an elevator according to claim 6, characterized in that: A limit spring (73) is fixedly mounted on one end of the slider (72) close to the elevator box (2), and the other end of the limit spring (73) is fixedly connected to the fixing box (7).

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