Construction hoist car with buffer structure

Abstract

The utility model relates to the technical field of lifts, and discloses a construction lift car with a buffer structure, which comprises connecting rods symmetrically hinged to the bottom of a connecting plate; the sliding sleeve is hinged to the bottom end of the connecting rod; the sliding rod is arranged on the sliding sleeve in a penetrating mode, and the sliding sleeve is slidably connected to the outside of the sliding rod; the supporting rod is sleeved with the rubber pad; the spring is fixedly connected between the rubber pad and the sliding sleeve, and the sliding rod is sleeved with the spring. When the lift car body breaks down and falls down, the bottom plate firstly makes contact with the bottom of a lift shaft, the lift car body drives the connecting plate to fall down, the connecting rod pushes the sliding sleeve at the bottom to slide on the sliding rod after bearing the gravity of the lift car body, the sliding sleeve compresses the spring when sliding, and the spring and the rubber pad deform and are used for absorbing impact force generated when the sliding sleeve moves; and meanwhile, the buffering assembly and the air bag shock absorber are combined to act on the lift car body on the connecting plate, and the buffering effect on the lift car body is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a construction elevator car with a buffer structure. Background Art

[0002] Freight elevators are primarily designed for transporting goods and are usually accompanied by passengers. Freight elevator cars are long and narrow. These are electric-powered, vertical elevator cars equipped with a box-shaped gondola. They are fixed elevators that serve designated floors. They consist of a car that runs between at least two vertical rigid guide rails. The elevator industry is a specialized industry, with detailed national standards for its design, manufacture, installation, and use. The main components of an elevator include civil engineering, mechanical engineering, and electrical engineering. The mechanical components include the guide rails, car, counterweight, wire rope, and other mechanical parts.

[0003] Elevator car construction requires a buffer mechanism. When an elevator encounters an emergency during operation, such as a broken wire rope, traction failure, or a control system failure that causes the elevator to exceed the normal range, the buffer mechanism can act as an emergency brake, instantly intervening to powerfully absorb the impact and prevent the car and counterweight from crashing directly into the ground or rushing to the top floor. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a construction elevator car with a buffer structure, which has the advantage of good buffering effect. It solves the problem that the existing construction elevator car needs to have a buffer mechanism to buffer the strong impact force generated when the elevator fails, thereby increasing the safety of objects and personnel in the car.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a construction elevator car with a buffer structure, comprising a car body, a buffer assembly provided on the car body, and the buffer assembly comprising:

[0008] A connecting plate is provided at the bottom of the car body;

[0009] A connecting rod is symmetrical and hinged to the bottom of the connecting plate;

[0010] a sliding sleeve, hinged to the bottom end of the connecting rod;

[0011] A sliding rod is provided through the sliding sleeve, and the sliding sleeve is slidably connected to the outside of the sliding rod;

[0012] A support rod, fixedly connected to the end of the slide rod;

[0013] A rubber pad is sleeved on the outside of the support rod;

[0014] a spring fixedly connected between the rubber pad and the sliding sleeve, the spring being sleeved outside the sliding rod;

[0015] The bottom plate is arranged at the bottom of the support rod.

[0016] Preferably, the support rods are symmetrically arranged in multiple groups, and the slide rods are fixedly connected between the support rods, and the slide rods are surrounded by each other to form a "mouth" shape.

[0017] Preferably, an airbag shock absorber is symmetrically and fixedly connected between the connecting plate and the bottom plate, and the airbag shock absorber is located in the area surrounded by the sliding rod.

[0018] Preferably, a buffer pad is provided at the bottom of the base plate.

[0019] Preferably, the car body and the connecting plate are provided with a replacement component, and the replacement component includes:

[0020] A connecting block, symmetrically fixedly connected to the bottom of the car body;

[0021] A threaded hole is provided on the connecting block;

[0022] Blind holes are symmetrically opened on the top surface of the connecting plate;

[0023] A screw rod is symmetrically and rotationally connected to the connecting plate, and the screw rod is threadedly connected to the threaded hole;

[0024] The turning handle is fixedly connected to one end of the screw rod away from the connecting plate.

[0025] Preferably, an anti-slip pad is provided on the top of the connecting plate.

[0026] (3) Beneficial effects

[0027] Compared with the prior art, the present invention provides a construction elevator car with a buffer structure, which has the following beneficial effects:

[0028] This elevator car has the advantage of a good buffering effect. When the car body fails and falls downward, the bottom plate first contacts the bottom of the elevator shaft, and the car body drives the connecting plate to fall. The connecting rod is skewed after being subjected to the weight of the car body, and the angle below the connecting rod becomes larger, and it pushes the bottom sliding sleeve to slide on the sliding rod. The sliding sleeve compresses the spring when sliding, and the spring and rubber pad are deformed to absorb the impact force when the sliding sleeve moves, thereby achieving the effect of shock absorption and buffering of the car body. At the same time, the airbag shock absorber in the middle buffers the middle position of the connecting plate. The buffer assembly and the airbag shock absorber work together to act on the car body on the connecting plate, thereby enhancing the buffering effect of the car body. This solves the problem that the existing construction elevator car needs to have a buffer mechanism to buffer the strong impact force generated by the elevator failure and increase the safety of objects and personnel in the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the car body separation structure in the present utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the buffer component in the utility model;

[0032] Figure 4 This is a schematic diagram of the front cross-sectional structure of the blind hole in the present invention.

[0033] In the picture:

[0034] 1. Car body;

[0035] 2. Buffer assembly; 21. Connecting plate; 22. Connecting rod; 23. Sliding sleeve; 24. Sliding rod; 25. Support rod; 251. Rubber pad; 26. Spring; 27. Bottom plate;

[0036] 3. Replacement components; 31. Connecting block; 32. Threaded hole; 33. Blind hole; 34. Screw; 35. Turn handle;

[0037] 4. Cushion pad; 5. Airbag shock absorber; 6. Anti-slip pad. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example 1

[0040] See Figure 1-4 A construction elevator car with a buffer structure includes a car body 1, on which a buffer assembly 2 is provided. The buffer assembly 2 includes: a connecting plate 21, which is provided at the bottom of the car body 1; a connecting rod 22, which is symmetrical and hinged to the bottom of the connecting plate 21; a sliding sleeve 23, which is hinged to the bottom end of the connecting rod 22; a sliding rod 24, which is provided through the sliding sleeve 23 and is slidably connected to the outside of the sliding rod 24; a support rod 25, which is fixedly connected to the end of the sliding rod 24; a rubber pad 251, which is sleeved on the outside of the support rod 25; a spring 26, which is fixedly connected between the rubber pad 251 and the sliding sleeve 23 and is sleeved on the outside of the sliding rod 24; and a bottom plate 27, which is provided at the bottom of the support rod 25. The support rods 25 are symmetrically provided in multiple groups, and the sliding rods 24 are fixedly connected between the support rods 25. The sliding rods 24 surround each other in a "mouth" shape. An airbag shock absorber 5 is symmetrically and fixedly connected between the connecting plate 21 and the bottom plate 27 . The airbag shock absorber 5 is located in the area surrounded by the sliding rod 24 .

[0041] When the car body 1 fails and falls downward, the buffer assembly 2 cushions the car body 1: the bottom plate 27 first contacts the bottom of the elevator shaft, the car body 1 drives the connecting plate 21 to fall, and the connecting rod 22 becomes skewed after being affected by the gravity of the car body 1. The angle below the connecting rod 22 becomes larger, and pushes the bottom sliding sleeve 23 to slide on the sliding rod 24. The sliding sleeve 23 compresses the spring 26 when sliding, and the spring 26 and the rubber pad 251 are deformed to absorb the impact force when the sliding sleeve 23 moves, thereby achieving the effect of shock absorption and buffering of the car body 1. Support rods 25 are distributed at the four corners of the base plate 27, with the sliding rods 24 between them forming a "mouth" shape, supporting and cushioning the outer side of the connecting plate 21. At the same time, the airbag shock absorber 5 in the middle provides shock absorption to the middle part of the connecting plate 21. The airbag shock absorber 5 mainly achieves better shock absorption by alleviating the change in the volume of the hydraulic chamber when the inner rod moves and increasing the air pressure in the hydraulic chamber. The buffer assembly 2 and the airbag shock absorber 5 work together to act on the car body 1 on the connecting plate 21, enhancing the buffering effect of the car body 1. A buffer assembly 2 is also symmetrically arranged on the top of the car body 1 (not shown in the drawings). The top buffer assembly 2 cushions the top of the car body 1, buffering the strong impact caused by the upward movement of the car body 1 after a malfunction.

[0042] Example 2

[0043] On the basis of the first embodiment, an auxiliary function is added.

[0044] See Figure 1-4A cushion pad 4 is provided at the bottom of the bottom plate 27. A replacement assembly 3 is provided on the car body 1 and the connecting plate 21. The replacement assembly 3 comprises: a connecting block 31, symmetrically fixedly connected to the bottom of the car body 1; threaded holes 32, defined in the connecting block 31; blind holes 33, symmetrically defined on the top surface of the connecting plate 21; a screw rod 34, symmetrically and rotationally connected to the connecting plate 21, with the screw rod 34 threadedly connected to the threaded holes 32; and a handle 35, fixedly connected to the end of the screw rod 34 away from the connecting plate 21. An anti-slip pad 6 is provided on the top of the connecting plate 21.

[0045] The buffer pad 4 isolates the bottom plate 27 from the elevator shaft. When the car body 1 falls, the buffer pad 4 cushions the bottom plate 27 to prevent the bottom plate 27 from being damaged after impact, which affects the normal buffering effect of the buffer assembly 2. The buffer assembly 2 is easily damaged when buffering the car body 1 and needs to be replaced. However, it is expensive to replace the car body 1 and the buffer assembly 2 together. Therefore, the replacement assembly 3 makes it easier for the staff to replace the buffer assembly 2 separately: when replacement is needed, the staff turns the handle 35, and the handle 35 drives the screw rod 34 to rotate. When the screw rod 34 rotates, it disengages from the threaded hole 32 on the connecting block 31 and rotates out of the connecting plate 21. At this time, the connecting plate 21 is removed together with the device at the bottom, and then the blind hole 33 on the new connecting plate 21 is aligned with the connecting block 31, the connecting block 31 is inserted into the blind hole 33, and the screw rod 34 is respectively inserted into the through groove on the right side of the connecting plate 21. The handle 35 is turned in the opposite direction to ensure that the screw rod 34 is inserted into the threaded hole 32 in turn. The fixing of the connecting plate 21 is completed, thereby achieving the replacement of the buffer assembly 2. The anti-slip pad 6 on the contact surface between the connecting plate 21 and the car body 1 increases the friction during contact and increases the stability of the connecting plate 21 after it is fixed.

[0046] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction elevator car with a buffer structure, characterized in that: The invention comprises a car body (1), wherein a buffer assembly (2) is provided on the car body (1), and the buffer assembly (2) comprises: A connecting plate (21) is arranged at the bottom of the car body (1); A connecting rod (22) is symmetrical and hinged to the bottom of the connecting plate (21); A sliding sleeve (23) is hinged to the bottom end of the connecting rod (22); A sliding rod (24) is provided through the sliding sleeve (23), and the sliding sleeve (23) is slidably connected to the outside of the sliding rod (24); A support rod (25) is fixedly connected to the end of the slide rod (24); A rubber pad (251) is sleeved on the outside of the support rod (25); A spring (26) is fixedly connected between the rubber pad (251) and the sliding sleeve (23), and the spring (26) is sleeved on the outside of the sliding rod (24); The bottom plate (27) is arranged at the bottom of the support rod (25).

2. The construction elevator car with a buffer structure according to claim 1, characterized in that: The support rods (25) are symmetrically arranged in multiple groups, and the slide rods (24) are fixedly connected between the support rods (25), and the slide rods (24) are surrounded by each other to form a "mouth" shape.

3. The construction elevator car with a buffer structure according to claim 2, characterized in that: An airbag shock absorber (5) is symmetrically and fixedly connected between the connecting plate (21) and the bottom plate (27), and the airbag shock absorber (5) is located in the area surrounded by the sliding rod (24).

4. The construction elevator car with a buffer structure according to claim 3, characterized in that: A buffer pad (4) is provided at the bottom of the bottom plate (27).

5. The construction elevator car with a buffer structure according to claim 4, characterized in that: A replacement component (3) is provided on the car body (1) and the connecting plate (21), and the replacement component (3) comprises: A connecting block (31) is symmetrically fixedly connected to the bottom of the car body (1); A threaded hole (32) is provided on the connecting block (31); Blind holes (33) are symmetrically arranged on the top surface of the connecting plate (21); A screw rod (34) is symmetrically and rotationally connected to the connecting plate (21), and the screw rod (34) is threadedly connected to the threaded hole (32); The turning handle (35) is fixedly connected to an end of the screw rod (34) away from the connecting plate (21).

6. The construction elevator car with a buffer structure according to claim 5, characterized in that: An anti-slip pad (6) is provided on the top of the connecting plate (21).

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