Buffer seat structure of novel backpack frame elevator
By designing a multi-stage buffer structure, including shock-absorbing blocks, springs, and shock-absorbing columns, the problem of large impact force in traditional backpack-frame elevator buffer seats is solved, achieving multi-stage buffering and improving passenger safety.
Patent Information
- Application Number
- CN202520343096.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Traditional backpack-style elevators' buffer seats can only provide a single cushioning effect when the elevator falls out of control, resulting in a large impact force and insufficient protection for passengers.
A multi-stage, multi-buffered cushioning structure is designed, including shock-absorbing blocks, springs, support plates, and shock-absorbing columns. Through multi-stage cushioning, the impact force is gradually reduced, thereby enhancing occupant safety.
Through a multi-stage buffer structure, the impact force during elevator descent is gradually reduced, improving passenger safety and ensuring effective protection for passengers during multiple buffering processes.
Smart Images
Figure CN223792722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator buffer technology, specifically a new type of buffer seat structure for backpack-frame elevators. Background Technology
[0002] Backpack elevators have their drive unit and counterweight unit concentrated on one side of the car. Traditionally, they mostly use wire rope traction, while some use screw drive. Due to their compact structure and small space occupation, they are suitable for narrow shafts or home scenarios with limited space. Because of their one-side design, they have high installation flexibility and can open doors on three sides.
[0003] When the elevator falls out of control, the buffer seat installed on the backpack frame can cushion the car, which is in a state of near free fall. However, since the impact force is large after the car comes into direct contact with the buffer seat, and there is only one cushioning effect, the protection for the occupants inside the car is still insufficient. Utility Model Content
[0004] The purpose of this utility model is to provide a new type of buffer seat structure for backpack frame elevators, which aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: The buffer seat structure of the novel backpack frame elevator includes a base plate, with waist holes at both ends of the base plate. A top plate and two support plates for connecting the top plate and the base plate are provided above the base plate. A through hole is provided on the upper surface of the top plate. A sleeve communicating with the through hole is provided on the top plate. A top rod is slidably connected inside the sleeve. A pressure plate is provided at the upper end of the top rod. A compressible shock-absorbing block is provided on the upper surface of the pressure plate. A baffle is provided at the lower end of the top rod. A spring is sleeved on the outer surface of the sleeve. The spring is located between the top plate and the pressure plate. A compressible shock-absorbing column is provided on the upper surface of the base plate and directly below the baffle.
[0006] Preferably, the support plate is configured in an arc shape, and the support plate has an arc-shaped convex surface and an inward concave surface, with the inward concave surface on both convex surfaces located between the two convex surfaces.
[0007] Preferably, the pressure plate and the top plate are rectangular plate structures, and the top plate and the pressure plate remain rectangular plate structures during the bending process of the support plate.
[0008] Preferably, the upper surface of the base plate is provided with a retractable guide rod, and the upper end of the guide rod is fixedly connected to the top plate.
[0009] Preferably, the height of the guide rod after it is fully retracted is less than the height of the shock absorber column after it is fully retracted.
[0010] The beneficial effects of this utility model are:
[0011] Compared with existing buffer seats, this buffer seat structure can gradually reduce the impact force when the car falls through multiple stages of buffering. Furthermore, the shock-absorbing blocks, springs, and support plates gradually enhance their ability to reduce the impact force on the car, thereby improving the safety of the occupants inside the car. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.
[0013] Figure 2 This is a partial cross-sectional view of a specific embodiment of the present invention.
[0014] In the diagram: 1. Base plate; 2. Waist hole; 3. Top plate; 4. Support plate; 5. Sleeve; 6. Top rod; 7. Pressure plate; 8. Shock absorber block; 9. Baffle; 10. Spring; 11. Shock absorber column; 12. Guide rod. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0016] like Figure 1-2 As shown, a novel backpack frame elevator buffer seat structure includes a base plate 1, with waist holes 2 at both ends of the base plate 1. A top plate 3 and two support plates 4 for connecting the top plate 3 and the base plate 1 are provided above the base plate 1. A through hole is provided on the upper surface of the top plate 3. A sleeve 5 communicating with the through hole is provided on the top plate 3. A top rod 6 is slidably connected inside the sleeve 5. A pressure plate 7 is provided at the upper end of the top rod 6. A compressible shock-absorbing block 8 is provided on the upper surface of the pressure plate 7. A baffle 9 is provided at the lower end of the top rod 6. A spring 10 is sleeved on the outer surface of the sleeve 5. The spring 10 is located between the top plate 3 and the pressure plate 7. A compressible shock-absorbing column 11 is provided on the upper surface of the base plate 1 and directly below the baffle 9.
[0017] The backpack-frame elevator includes a guide rail support, a car, a power system for controlling the movement of the car, and other safety modules. The buffer seat is installed on the bottom upper surface of the guide rail support. Specifically, the buffer seat can be installed on the bottom upper surface of the guide rail support by bolts and the waist holes 2 on the base plate 1. The car can move up and down along the guide rail support. A fixing plate is provided on the side of the outer surface of the car. When the car is working normally, the fixing plate on the side of the car will not contact the buffer seat. Only when the car falls uncontrollably will the fixing plate on the outer surface of the car contact the buffer seat installed at a lower position when it falls to a certain position, thereby avoiding hard contact between the car and the ground.
[0018] When the car falls uncontrollably and the fixed plate on the outer surface of the car moves to a certain position with the car, the fixed plate will first contact the shock absorber 8. The shock absorber 8 will be compressed after being pressed, and at the same time, it will transmit the pressure to the pressure plate 7. After the pressure plate 7 is compressed, it will push the top rod 6 to move downward, and at the same time, it will compress the spring 10. During the compression process, the spring 10 will push the top plate 3 to move downward. During the downward movement of the top plate 3, the support plate 4 will bend. When the support plate 4 bends to a certain extent, the stop will contact the shock absorber column 11 and compress the shock absorber column 11, so as to avoid the stop from making hard contact with the bottom plate 1, and thus play a further buffering role.
[0019] The compression of the shock absorber 8 provides the first cushioning effect for the car, reducing the impact force when the car falls. The compression of the spring 10 provides the second cushioning effect, further reducing the impact force when the car falls. The bending of the support plate 4 provides the third cushioning effect, continuing to reduce the impact force when the car falls. The bending of the shock absorber column 11 provides the fourth cushioning effect, achieving the final cushioning of the car. Compared with the existing buffer seat, through multi-stage and multiple cushioning, the impact force when the car falls can be gradually reduced. Moreover, the shock absorber 8, spring 10 and support plate 4 have progressively enhanced ability to reduce the impact force on the car, thereby improving the safety of the occupants inside the car.
[0020] At the same time, when the stop block squeezes the shock absorber column 11 and prevents the shock absorber column 11 from being further compressed by the impact force of the car, there is still a certain distance between the lower surface of the car and the ground, so as to better protect the occupants inside the car.
[0021] Both the damping block 8 and the damping column 11 are made of polyurethane.
[0022] Furthermore, the support plate 4 is set in an arc shape, with an arc-shaped convex surface and an inward concave surface. The inward concave surface on the two convex surfaces is located between the two convex surfaces. When the support plate 4 is deformed by pressure, the support plate 4 will bend towards the convex surface, thereby avoiding bending the support plate 4 towards the inward concave surface as much as possible and affecting the buffering of the damping column 11 on the stop block.
[0023] Furthermore, the pressure plate 7 and the top plate 3 are rectangular plate structures. During the bending process of the support plate 4 under pressure, the top plate 3 and the pressure plate 7 always remain rectangular plate structures. Both the support plate 4 and the pressure plate 7 are high-strength steel plates with a thickness of 16mm. The thickness and strength of the support plate 4 and the pressure plate 7 are higher than those of the support plate 4, which ensures that the buffer structure can be squeezed downwards when under pressure to reduce the occurrence of skewing and ensure effective buffering.
[0024] Furthermore, a telescopic guide rod 12 is provided on the upper surface of the base plate 1. The upper end of the guide rod 12 is fixedly connected to the top plate 3. The guide rod 12 can provide guidance for the downward movement of the top plate 3 to ensure that the top plate 3 can move vertically downward.
[0025] Furthermore, the height of the guide rod 12 after full retraction is less than the height of the damping column 11 after full retraction, to ensure that the damping column 11 can be effectively compressed.
[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A new type of back-pack frame elevator's buffer seat structure, characterized in that, The utility model provides a kind of support, including bottom plate, the waist hole is set in the both ends of bottom plate respectively, the top plate and two support plates for connecting top plate and bottom plate are provided above bottom plate, the upper surface of top plate is provided with through-hole, sleeve is provided on top plate and is penetrated with through-hole, top rod is slidably connected in the inside of sleeve, the upper end of top rod is provided with pressing plate, the upper surface of pressing plate is provided with compressible shock-absorbing block, the lower end of top rod is provided with baffle, spring is sleeved on the outer surface of sleeve, spring is between top plate and pressing plate, the upper surface of bottom plate and located the directly below of baffle is provided with compressible shock-absorbing column.
2. The novel back-pack frame elevator's buffer seat structure according to claim 1, characterized in that, The support plate is arranged in an arc shape, and the support plate has an arc-shaped convex surface and an arc-shaped concave surface.
3. The novel back-pack frame elevator's buffer seat structure according to claim 1, characterized in that, The pressing plate and the top plate are rectangular plate structures, and the top plate and the pressing plate remain rectangular plate structures during the compression bending of the support plate.
4. The novel back-pack frame elevator's buffer seat structure according to claim 1, wherein, The upper surface of the bottom plate is provided with a telescopic guide rod, and the upper end of the guide rod is fixedly connected with the top plate.
5. The novel back-pack frame elevator's buffer seat structure according to claim 4, characterized in that, The height of the guide rod after complete contraction is less than the height of the shock-absorbing column after complete contraction.