Elevator anti-collision device with buffer structure

CN224930111UActive Publication Date: 2026-11-03TIANJIN YAOLUN ELEVATOR CO LTD
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Patent Information

Application Number
CN202522741738.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-11-03
Estimated Expiration
2035-12-24

AI Technical Summary

Technical Problem

In traditional elevator anti-collision devices, the gas produced by fuel combustion expands and ejects, causing the fuel to run out and requiring frequent replacement, which wastes time.

Method used

It adopts a combination of buffer plate, buffer airbag and air compression assembly, and realizes airbag self-inflation buffer through air rod, piston and one-way valve to avoid fuel combustion, and uses spring and damping block to form a composite buffer.

Benefits of technology

It achieves self-inflating airbag cushioning, avoids fuel depletion, improves the practicality and reliability of the device, and enhances the cushioning and protection effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an elevator anti -collision device with buffer structure, including device board body, device board body top both sides all install a plurality of fixed cylinder, fixed cylinder top penetrates and has the mobile column body, the one end that mobile column body is located in fixed cylinder is connected with first spring, the one end that mobile column body stretches out in fixed cylinder passes through second spring and is fixed with the buffer board body that penetrates, buffer board body bottom is equipped with a plurality of pressure gas subassembly, is used for to install a plurality of buffer air bag on the buffer board body top and carry out the inflation, the utility model discloses when buffer board body is impacted or extruded, will drive air rod to move, drives the piston in the inflation cylinder to move, the piston compresses the air in the inflation cylinder, makes the gas pressure increase, high pressure gas will push away check valve, to make gas through the inflation of hose and mobile column body and enter a plurality of air bags on the device board body surface, realized the air bag self-inflation buffer protection after the device is impacted or extruded.
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Description

Technical Field

[0001] This utility model relates to the field of elevator anti-collision devices, specifically an elevator anti-collision device with a buffer structure. Background Technology

[0002] In the field of modern architecture, elevators, as an important tool for vertical transportation, have received considerable attention for their safety. Especially in high-rise buildings, the risk of accidental collisions during elevator operation is a significant issue. Elevator anti-collision devices are a series of technologies and equipment designed to improve elevator safety; their primary purpose is to prevent collision accidents during elevator operation.

[0003] According to publicly available patent CN223133845U, an elevator anti-collision device with a buffer structure relates to the field of elevator protection technology. The proposed solution includes a fixed base plate and a protective mechanism mounted above the fixed base plate. The protective mechanism includes a buffer assembly and a protective assembly. The buffer assembly includes a spring, a damper, and guide rods. Springs are arrayed above the fixed base plate, and dampers are installed inside the springs. Guide rods are installed on both the left and right sides of the fixed base plate. The protective assembly includes a pressure-bearing top plate, an inner cavity, a protective airbag, a central column, a groove, an igniter, a partition, a top plate, and a cover plate. The pressure-bearing top plate is fixedly mounted on the top of the springs. During use, when the pressure-bearing top plate is subjected to impact, the impact force is buffered by the springs and dampers at the bottom, absorbing the impact and reducing elevator damage. This facilitates elevator protection.

[0004] However, in use, traditional elevator anti-collision devices with buffer structures rely on the gas generated by the combustion of fuel inside the partition to fill and expand the partition, protecting the elevator at the top. This fuel-based protection method is prone to running out of fuel, requiring staff to repeatedly replace the fuel in the partition, wasting a significant amount of replacement time. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an elevator anti-collision device with a buffer structure. This solves the problem that the current traditional elevator anti-collision devices with buffer structures, in which the partition is filled with gas generated by the combustion of fuel inside the cavity and expands and pops out to protect the elevator at the top, have the technical problem that the fuel runs out, requiring staff to repeatedly replace the fuel in the cavity, wasting a lot of replacement time.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: design an elevator anti-collision device with a buffer structure, including a device plate, multiple fixed cylinders are installed on both sides of the top of the device plate, a movable column passes through the top of the fixed cylinder, a first spring is connected to one end of the movable column inside the fixed cylinder, and a buffer plate is fixed through the second spring at one end of the movable column extending out of the fixed cylinder. Multiple air compression components are provided at the bottom of the buffer plate for inflating multiple buffer airbags installed on the top of the buffer plate.

[0007] Preferably, the air compression assembly includes multiple air rods, which are installed on both sides of the bottom of the buffer plate.

[0008] Preferably, the bottom of the air rod extends into the air cylinder body and is connected to the piston inside the air cylinder body. The piston surface is provided with an opening, and a one-way valve is installed at the opening.

[0009] Preferably, the bottom of the inflatable cylinder is connected to a connecting pipe, and the bottom of the connecting pipe passes through the through-device plate and is connected to a pipe joint.

[0010] Preferably, one end of the pipe joint is connected to an inflatable hose at its bottom, and the other end of the inflatable hose passes through the device plate and extends into the fixed cylinder.

[0011] Preferably, one end of the inflatable hose located inside the fixed cylinder is connected to an inflation hole opened in the movable column, and the other end of the inflation hole is connected to a buffer airbag installed on the surface of the buffer plate.

[0012] Preferably, a first damping block is fixed to the bottom of the buffer plate, a second damping block is installed at the bottom of the first damping block, a device plate is fixed to the bottom of the second damping block, and an installation block is installed at the bottom of the device plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model combines a buffer plate, buffer airbags, and a compressed air assembly. When the buffer plate is impacted or compressed, it moves the air rod, which in turn moves the piston inside the inflation cylinder. The piston compresses the air inside the inflation cylinder, increasing the gas pressure. The high-pressure gas pushes open the one-way valve, allowing gas to enter multiple airbags on the surface of the device plate through the inflatable hose and the moving column. This achieves self-inflating buffer protection of the airbags after the device is impacted or compressed. It solves the technical problem of traditional elevator anti-collision devices with buffer structures, where the partition is filled and expanded by the gas generated after the fuel inside the cavity is burned to protect the elevator at the top. This fuel-burning protection method has the problem of running out of fuel, requiring staff to repeatedly replace the fuel in the cavity, wasting a lot of replacement time.

[0015] 2. This utility model combines a fixed cylinder, a spring, and a movable column. When the buffer plate is subjected to collision or compression, it can not only drive the movable column to compress the first spring inside the fixed cylinder to buffer the collision or compression, but also, since a second spring is sleeved on the outside of the movable column, the buffer plate will also compress the second spring when it moves. Thus, the first spring and the second spring form a composite buffer, which further improves the buffer protection effect. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the fixed cylinder structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the air compressor assembly structure of this utility model;

[0019] In the diagram: 1. Device plate; 101. First damping block; 102. Second damping block; 103. Buffer plate; 2. Fixed cylinder; 201. Second spring; 202. Moving column; 203. Inflation hole; 204. First spring; 3. Buffer airbag; 301. Inflation cylinder; 302. Air rod; 303. Pipe joint; 304. Inflation hose; 305. Mounting block; 306. Piston; 307. One-way valve; 308. Connecting pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Example 1: An elevator anti-collision device with a buffer structure, see [link / reference] Figures 1 to 3 The device includes a device plate 1. Multiple fixed cylinders 2 are installed on both sides of the top of the device plate 1. A movable column 202 passes through the top of the fixed cylinder 2. One end of the movable column 202 inside the fixed cylinder 2 is connected to a first spring 204. The other end of the movable column 202 extending out of the fixed cylinder 2 passes through a second spring 201 and is fixed to a buffer plate 103. Multiple air-compressing components are provided at the bottom of the buffer plate 103 for inflating multiple buffer airbags 3 installed on the top of the buffer plate 103.

[0022] When the elevator encounters a collision or compression during operation, the buffer plate 103 is the first to be subjected to external force. A first damping block 101 is fixed to the bottom of the buffer plate 103, and a second damping block 102 is installed at the bottom of the first damping block 101. The bottom of the second damping block 102 is fixed to the device plate 1. During the collision or compression, the first damping block 101 and the second damping block 102 will deform to a certain extent, consuming some energy and playing a preliminary buffering role. At the same time, the buffer plate 103 is connected to the moving column 202, which penetrates the fixed cylinder 2. One end of the moving column 202 located inside the fixed cylinder 2 is connected to a first spring 204. Furthermore, one end of the movable column 202 extending into the fixed cylinder 2 passes through the second spring 201. When subjected to external force, the buffer plate 103 drives the movable column 202 to move. The movable column 202 compresses the first spring 204 inside the fixed cylinder 2, causing the first spring 204 to undergo elastic deformation and generate elastic force to resist the external force. At the same time, the second spring 201 sleeved on the outside of the movable column 202 is also compressed, further generating elastic force. The first spring 204 and the second spring 201 work together to form a composite buffer, effectively absorbing and dispersing the energy generated by collision or compression, reducing the impact on the elevator, and improving the buffer protection effect.

[0023] For details, see Figure 3 The air compression assembly includes multiple air rods 302, which are installed on both sides of the bottom of the buffer plate 103. The bottom of the air rods 302 extends into the inflation cylinder 301 and is connected to the piston 306 inside the inflation cylinder 301. The piston 306 has an opening on its surface and a one-way valve 307 is installed at the opening. The bottom of the inflation cylinder 301 is connected to a connecting pipe 308. The bottom of the connecting pipe 308 passes through the device plate 1 and is connected to a pipe joint 303. The bottom of the pipe joint 303 is connected to one end of an inflation hose 304. The other end of the inflation hose 304 passes through the device plate 1 and extends into the fixed cylinder 2. The end of the inflation hose 304 located in the fixed cylinder 2 is connected to an inflation hole 203 opened in the movable column 202. The other end of the inflation hole 203 is connected to a buffer airbag 3 installed on the surface of the buffer plate 103.

[0024] During the movement of the buffer plate 103 due to impact or compression, the air compression assembly starts to work. The air compression assembly includes multiple air rods 302 installed on both sides of the bottom of the buffer plate 103. The bottom of the air rods 302 extends into the inflation cylinder 301 and is connected to the piston 306 inside the inflation cylinder 301. When the buffer plate 103 moves, it drives the air rods 302 to move synchronously. The air rods 302 then push the piston 306 inside the inflation cylinder 301 to move downward. In the initial stage of the piston 306's movement, the air inside the inflation cylinder 301 is compressed, and the gas pressure gradually increases. The piston 306 has an opening on its surface, and a one-way valve 307 is installed at the opening. The function of the one-way valve 307 is to allow gas to flow in one direction only. The gas flows from the inside of the inflation cylinder 301 to the outside to prevent backflow. As the piston 306 moves downward, the gas pressure inside the inflation cylinder 301 continues to rise. When the gas pressure reaches a certain level, the high-pressure gas will push open the one-way valve 307. The bottom of the inflation cylinder 301 is connected to a connecting pipe 308. The bottom of the connecting pipe 308 passes through the device plate 1 and is connected to a pipe joint 303. The bottom of the pipe joint 303 is connected to one end of the inflation hose 304. The other end of the inflation hose 304 passes through the device plate 1 and extends into the fixed cylinder 2, and is connected to the inflation hole 203 opened in the movable column 202. The other end of the inflation hole 203 is connected to the buffer airbag 3 installed on the surface of the buffer plate 103.

[0025] High-pressure gas released by pushing open the one-way valve 307 passes sequentially through the inflation cylinder 301, connecting pipe 308, pipe joint 303, inflation hose 304, and inflation hole 203, finally entering the buffer airbag 3. This causes the buffer airbag 3 to inflate rapidly. The inflated buffer airbag 3 further enhances its buffering and protective function, absorbing and dispersing the remaining collision or compression energy, thus better protecting the safety of the elevator and its internal personnel and equipment. When the collision or compression force disappears, the first spring 204 and the second spring 201 return to their original state, pushing the moving column 202 and the buffer plate 103 back to their initial positions. At the same time, under the action of external atmospheric pressure, the piston 306 moves upward, restoring the initial state of the inflation cylinder 301, thus realizing the cyclic use of the device.

[0026] It is worth emphasizing that, see Figure 1 A first damping block 101 is fixed to the bottom of the buffer plate 103, a second damping block 102 is installed at the bottom of the first damping block 101, a device plate 1 is fixed to the bottom of the second damping block 102, and an installation block 305 is installed at the bottom of the device plate 1.

[0027] In summary, this elevator anti-collision device with a buffer structure achieves effective buffering protection when the elevator is hit or squeezed through the buffer plate 103, spring, damping block, air compressor assembly, and buffer airbag 3. Furthermore, the air compressor assembly enables the airbag to self-inflate, avoiding the problem of frequent fuel replacement required when the fuel runs out, which is a problem of traditional fuel combustion protection methods, thus improving the practicality and reliability of the device.

[0028] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. An elevator anti-collision device with a buffer structure, comprising a device plate (1), characterized in that, Multiple fixed cylinders (2) are installed on both sides of the top of the device plate (1). A movable column (202) passes through the top of the fixed cylinder (2). One end of the movable column (202) inside the fixed cylinder (2) is connected to a first spring (204). One end of the movable column (202) extending out of the fixed cylinder (2) passes through a second spring (201) and is fixed to a buffer plate (103). Multiple air-pressurizing components are provided at the bottom of the buffer plate (103) for inflating multiple buffer airbags (3) installed on the top of the buffer plate (103).

2. The elevator anti-collision device with a buffer structure as described in claim 1, characterized in that, The compressed air assembly includes multiple air rods (302), which are installed on both sides of the bottom of the buffer plate (103).

3. The elevator anti-collision device with a buffer structure as described in claim 2, characterized in that, The bottom of the air rod (302) extends into the air cylinder (301) and is connected to the piston (306) inside the air cylinder (301). The piston (306) has an opening on its surface and a one-way valve (307) is installed at the opening.

4. The elevator anti-collision device with a buffer structure as described in claim 3, characterized in that, The bottom of the inflatable cylinder (301) is connected to a connecting pipe (308), and the bottom of the connecting pipe (308) passes through the through-device plate (1) and is connected to a pipe joint (303).

5. The elevator anti-collision device with a buffer structure as described in claim 4, characterized in that, The bottom of the pipe joint (303) is connected to one end of the inflation hose (304), and the other end of the inflation hose (304) passes through the device plate (1) and extends into the fixed cylinder (2).

6. The elevator anti-collision device with a buffer structure as described in claim 5, characterized in that, One end of the inflatable hose (304) located inside the fixed cylinder (2) is connected to the inflation hole (203) opened in the movable column (202), and the other end of the inflation hole (203) is connected to the buffer airbag (3) installed on the surface of the buffer plate (103).

7. The elevator anti-collision device with a buffer structure as described in claim 1, characterized in that, The buffer plate (103) is fixed with a first damping block (101) at the bottom, and a second damping block (102) is installed at the bottom of the first damping block (101). The device plate (1) is fixed at the bottom of the second damping block (102), and an installation block (305) is installed at the bottom of the device plate (1).

Citation Information

Patent Citations

  • Elevator anti-collision device with buffer structure

    CN223133845U