Elevator protection device for elevator shaft
By installing a dual buffer system of hydraulic devices and elastic components in the elevator shaft, the problem of easy damage to hydraulic devices is solved, and the impact force is effectively decomposed and the speed is reduced when the elevator falls, thus improving the safety of the elevator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI UNICORN INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-14
AI Technical Summary
Existing elevator safety devices are prone to damage to the hydraulic components during elevator descent, leading to buffering failure and an inability to effectively decompose the impact force.
It employs a dual-buffer system, including a hydraulic unit and an elastic component. The impact force is decomposed into longitudinal and lateral forces through connecting columns and connecting frames. The combination of the hydraulic unit and the elastic component provides buffering and prevents damage to the hydraulic unit alone.
It effectively disperses the impact force when the elevator falls, prevents damage to the hydraulic system, slows down the elevator's descent speed, and improves safety.
Smart Images
Figure CN224118536U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator protection technology, specifically to an elevator protection device for elevator shafts. Background Technology
[0002] Elevator safety measures are crucial to users' lives. When an elevator malfunctions, it will fall directly to the bottom of the elevator shaft. Existing protection only includes hydraulic devices, but excessive impact can easily damage these devices, leading to buffering failure. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an elevator safety device for elevator shafts, which has the advantage of decomposing and buffering the impact force of an elevator falling, thus avoiding the problem that a single hydraulic device cannot provide safe protection.
[0004] To achieve the purpose of dispersing and buffering the impact force of an elevator falling, this utility model provides the following technical solution:
[0005] An elevator safety device for elevator shafts includes an elevator shaft wall, a buffer cavity at the bottom of the elevator shaft wall, a first buffer assembly installed on the side wall of the elevator shaft wall, and a second buffer assembly installed on the inner wall of the buffer cavity. The first and second buffer assemblies are used to buffer the impact force of the elevator falling. The device also includes:
[0006] The second buffer assembly includes a hydraulic device, which is fixedly installed on the bottom wall of the elevator shaft. A buffer plate is fixedly connected to the top of the hydraulic device. Multiple sliding blocks are slidably connected to the bottom wall of the elevator shaft. A connecting column is rotatably connected between the sliding blocks and the hydraulic device. An elastic component is fixedly connected between the sliding blocks and the inner wall of the elevator shaft. A connecting frame is fixedly connected to the side wall of both the hydraulic device and the sliding blocks, and the connecting frame is rotatably connected to the connecting column. A sliding groove is provided on the bottom wall of the elevator shaft.
[0007] According to some embodiments, the first buffer assembly includes a buffer block, which is slidably installed on the inner wall of the elevator shaft. A first spring is fixedly connected between the buffer block and the inner wall of the elevator shaft. The side wall of the buffer block is set to be inclined, and the buffer block can slide to the inner wall of the elevator shaft.
[0008] According to some embodiments, the elastic component includes a sleeve, which is fixedly installed on the inner wall of the elevator shaft. A sliding column is slidably connected to the inner wall of the sleeve. A second spring is fixedly connected between the sliding column and the sleeve. The end of the sliding column is fixedly connected to a sliding block. Multiple sets of buffer blocks and sliding blocks are provided and are evenly distributed around the center line of the buffer plate.
[0009] Beneficial effects
[0010] This utility model provides an elevator safety device for elevator shafts, which has the following beneficial effects:
[0011] (1) The elevator shaft protection device is used. When the elevator slides down to the bottom of the elevator shaft wall, it first contacts the buffer plate, triggering the hydraulic device to slide down. During the buffering process of the hydraulic device, the sliding block is squeezed by the connecting column to move to the side of the elevator shaft wall. At the same time, the elastic force of the elastic component is used for buffering. In summary, the impact force generated by the elevator sliding down is decomposed into longitudinal and lateral forces, and the hydraulic device and the elastic component are used for buffering respectively to avoid the hydraulic device being subjected to excessive impact, which would cause it to be damaged.
[0012] (2) The elevator safety device for the elevator shaft is used in which the elevator slides down to the bottom of the elevator shaft wall and contacts the buffer block. Since the buffer block is set in an inclined shape, it squeezes the first spring and uses the rebound force of the first spring to buffer the impact force of the elevator sliding down, thereby slowing down the speed of the elevator sliding down. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the device of this utility model;
[0014] Figure 2 This is a partial cross-sectional structural diagram of the device of this utility model;
[0015] Figure 3 This is a partial cross-sectional structural diagram of the second buffer component of this utility model;
[0016] Figure 4 This is a structural schematic diagram (front section) of the second buffer component of this utility model.
[0017] In the diagram: 1. Elevator shaft wall; 101. Buffer chamber; 2. First buffer assembly; 201. Buffer block; 202. First spring; 3. Second buffer assembly; 301. Hydraulic device; 302. Buffer plate; 303. Sliding block; 304. Connecting column; 305. Elastic component; 306. Connecting frame; 307. Slide groove; 4. Sleeve; 401. Sliding column; 402. Second spring. Detailed Implementation
[0018] 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.
[0019] Reference Figures 1-4An elevator safety device for elevator shafts includes an elevator shaft wall 1, a buffer cavity 101 at the bottom of the elevator shaft wall 1, a first buffer assembly 2 installed on the side wall of the elevator shaft wall 1, and a second buffer assembly 3 installed on the inner wall of the buffer cavity 101. The first buffer assembly 2 and the second buffer assembly 3 are used to buffer the impact force of the elevator falling. The device also includes:
[0020] The second buffer assembly 3 includes a hydraulic device 301, which is fixedly installed on the inner bottom wall of the elevator shaft wall 1. A buffer plate 302 is fixedly connected to the top of the hydraulic device 301. Multiple sliding blocks 303 are slidably connected to the inner bottom wall of the elevator shaft wall 1. A connecting column 304 is rotatably connected between the sliding blocks 303 and the hydraulic device 301. An elastic component 305 is fixedly connected between the sliding blocks 303 and the inner wall of the elevator shaft wall 1.
[0021] The hydraulic device 301 and the sliding block 303 are both fixedly connected to the side walls of the connecting frame 306, and the connecting frame 306 is rotatably connected to the connecting column 304. The bottom wall of the elevator shaft wall 1 is provided with a sliding groove 307.
[0022] It should be noted that during the process of the elevator descending to the bottom of the elevator shaft wall 1, the elevator first contacts the first buffer component 2, which slows down the speed of the elevator's descent. When the elevator descends to the bottom of the elevator shaft wall 1, it first contacts the buffer plate 302, which then compresses the buffer plate 302 and causes it to descend. During the descent of the buffer plate 302, the hydraulic device 301 is triggered to descend. During the buffering process, the hydraulic device 301 compresses the sliding block 303 to move to the side of the elevator shaft wall 1 through the connecting frame 306 and the connecting column 304. At the same time, the elastic force of the elastic component 305 is used for buffering. In summary, the impact force generated by the elevator's descent is decomposed into longitudinal and lateral forces, which are buffered by the hydraulic device 301 and the elastic component 305 respectively, to avoid excessive impact on the hydraulic device 301 and damage to it. The slide groove 307 ensures that the sliding block 303 slides on the inner bottom wall of the elevator shaft wall 1.
[0023] Reference Figures 1-4 The first buffer assembly 2 includes a buffer block 201, which is slidably installed on the inner wall of the elevator shaft wall 1, and a first spring 202 is fixedly connected between the buffer block 201 and the inner wall of the elevator shaft wall 1.
[0024] The sidewall of the buffer block 201 is set to be inclined, and the buffer block 201 can slide to the inner wall of the elevator shaft wall 1;
[0025] It should be noted that since the buffer block 201 is set in an inclined shape, when the elevator slides down and comes into contact with the buffer block 201, the buffer block 201 will slide towards the inner wall of the elevator shaft 1, thereby squeezing the first spring 202 and using the rebound force of the first spring 202 to buffer the impact force of the elevator sliding down.
[0026] Reference Figures 1-4 The elastic component 305 includes a sleeve 4, which is fixedly installed on the inner wall of the elevator shaft wall 1, and a sliding column 401 is slidably connected to the inner wall of the sleeve 4.
[0027] A second spring 402 is fixedly connected between the sliding column 401 and the sleeve 4, and the end of the sliding column 401 is fixedly connected to the sliding block 303.
[0028] Multiple sets of buffer blocks 201 and sliding blocks 303 are provided, and they are evenly distributed with the center line of buffer plate 302 as the center.
[0029] It should be noted that the sliding column 401 slides in the inner cavity of the sleeve 4, thereby squeezing the second spring 402, which generates a rebound force to buffer the impact force brought by the elevator falling. Multiple sets of buffer blocks 201 and sliding blocks 303 are provided, and they are evenly distributed with the center line of the buffer plate 302 as the center, which facilitates the uniform decomposition of the impact force and the buffering.
[0030] Operating method: During the process of the elevator descending to the bottom of the elevator shaft wall 1, the elevator descends and contacts the buffer block 201. Since the buffer block 201 is set in an inclined shape, it squeezes the first spring 202. The rebound force of the first spring 202 is used to buffer the impact force of the elevator descending, thereby slowing down the speed of the elevator descending.
[0031] When the elevator descends to the bottom of the elevator shaft wall 1, it first contacts the buffer plate 302, which then compresses the buffer plate 302 to slide down. During the descent of the buffer plate 302, the hydraulic device 301 is triggered to slide down as well. During the buffering process, the hydraulic device 301 compresses the sliding block 303 to move to the side of the elevator shaft wall 1 through the connecting frame 306 and the connecting column 304. At the same time, the elastic force of the elastic component 305 is used for buffering. In summary, the impact force generated by the elevator descent is decomposed into longitudinal and lateral forces, which are buffered by the hydraulic device 301 and the elastic component 305 respectively, to avoid excessive impact on the hydraulic device 301 and damage to it. The slide groove 307 ensures that the sliding block 303 slides on the inner bottom wall of the elevator shaft wall 1.
[0032] 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 safety device for elevator shafts, comprising an elevator shaft wall (1), characterized in that: The elevator shaft wall (1) has a buffer cavity (101) at its bottom. A first buffer assembly (2) is installed on the side wall of the elevator shaft wall (1), and a second buffer assembly (3) is installed on the inner wall of the buffer cavity (101). The first buffer assembly (2) and the second buffer assembly (3) are used to buffer the impact force of the elevator falling. The system also includes: The second buffer assembly (3) includes a hydraulic device (301), which is fixedly installed on the inner bottom wall of the elevator shaft wall (1). A buffer plate (302) is fixedly connected to the top of the hydraulic device (301). Multiple sliding blocks (303) are slidably connected to the inner bottom wall of the elevator shaft wall (1). A connecting column (304) is rotatably connected between the sliding block (303) and the hydraulic device (301). An elastic component (305) is fixedly connected between the sliding block (303) and the inner wall of the elevator shaft wall (1).
2. The elevator safety device for elevator shafts according to claim 1, characterized in that: The hydraulic device (301) and the sliding block (303) are both fixedly connected to the side wall of the connecting frame (306), and the connecting frame (306) is rotatably connected to the connecting column (304). The bottom wall of the elevator shaft wall (1) is provided with a sliding groove (307).
3. The elevator safety device for elevator shafts according to claim 2, characterized in that: The first buffer assembly (2) includes a buffer block (201), which is slidably installed on the inner wall of the elevator shaft wall (1), and a first spring (202) is fixedly connected between the buffer block (201) and the inner wall of the elevator shaft wall (1).
4. The elevator safety device for elevator shafts according to claim 3, characterized in that: The buffer block (201) has an inclined sidewall and can slide to the inner wall of the elevator shaft wall (1).
5. The elevator safety device for elevator shafts according to claim 4, characterized in that: The elastic component (305) includes a sleeve (4), which is fixedly installed on the inner wall of the elevator shaft wall (1), and a sliding column (401) is slidably connected to the inner wall of the sleeve (4).
6. The elevator safety device for elevator shafts according to claim 5, characterized in that: A second spring (402) is fixedly connected between the sliding column (401) and the sleeve (4), and the end of the sliding column (401) is fixedly connected to the sliding block (303).
7. An elevator safety device for elevator shafts according to claim 6, characterized in that: Multiple sets of buffer blocks (201) and sliding blocks (303) are provided, and they are evenly distributed with the center line of the buffer plate (302) as the center.