Comfortable Anti-rapid-descent safety elevator
The design of the guide rail seat, slider, block, buffer assembly and counterweight assembly solves the problems of shock absorption and stability when the elevator falls suddenly, improves the safety and comfort of the elevator, and ensures the safety of passengers.
Patent Information
- Application Number
- PCT/CN2024/079895
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-09-11
AI Technical Summary
Existing elevators have insufficient shock absorption in the event of a sudden fall, and rigid transmission produces a large impact force, affecting comfort. They are also insufficiently protective and pose a safety hazard.
By setting the cooperation between the first guide rail seat and the slider, the block on the top of the car is slidably installed in the guide rail seat slot. Combined with the buffer assembly and the shock absorption assembly, the energy of the car is absorbed, the speed is gradually consumed, the impact force feedback is reduced, and the counterweight assembly balances the weight to ensure stability and safety.
It improves the stability and comfort of the elevator car, reduces the impact force on passengers, enhances the safety performance of the elevator, and ensures the safety of passengers.
Smart Images

Figure CN2024079895_12092025_PF_FP_ABST
Abstract
Description
A comfortable emergency fall prevention safety elevator Technical Field
[0001] The present invention relates to the technical field of elevator devices, in particular to a comfortable emergency-fall-proof safety elevator. Background Art
[0002] An elevator is a permanent transportation device that serves several specific floors in a building. Its car runs on at least two rows of rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. In the existing technology, elevators have become one of the mechanical devices that we often encounter in our lives due to their convenience.
[0003] During the use of elevators, along with the convenience comes the danger and hidden dangers. The sudden drop of elevators is a common accident. Therefore, people need an anti-sudden-fall elevator to solve the problems of insufficient shock absorption in existing elevators, large impact force generated by rigid transmission, affecting comfort, insufficient protection of anti-sudden-fall structure, and safety hazards.
[0004] Summary of the Invention
[0005] To address the above issues, a comfortable, emergency-proof safety elevator is provided. By arranging a first guide rail seat and a slider for installation, the stability of the car during up and down movement is improved. At the same time, a clamping block provided at the top of the car is slidably installed in the slots on the side walls of the first guide rail seat, limiting the position of the car during movement and preventing strong vibrations during movement. While ensuring the safe movement of the car, the stability and comfort of the interior of the car are improved. At the same time, a buffer assembly at the bottom of the car weakens the feedback caused by impact, thereby improving the safety performance of the device.
[0006] In order to solve the problems of the existing technology, the present invention provides a comfortable anti-sudden fall safety elevator, including a car, a power mechanism, a counterweight assembly and a buffer assembly; the power mechanism is arranged on the top of the car; one end of the power mechanism is connected to the counterweight assembly; the counterweight assembly is used to offset the gravity during the operation of the elevator; the buffer assembly is arranged at the bottom of the car; sliders are provided on the side walls on both sides of the outside of the car; the sliders are slidably installed on the first guide rail seat; the first guide rail seat is fixedly arranged in the elevator shaft; blocks are provided at both ends of the top and bottom of the car; card slots are provided on the side walls on both sides of the first guide rail seat; the card blocks are slidably installed in the card slots.
[0007] Preferably, the buffer assembly includes a buffer seat, a buffer block and a buffer airbag; the buffer seat is arranged at the bottom of the car; a receiving groove is arranged at the center of the buffer seat; the buffer airbag is arranged in the receiving groove; shock-absorbing grooves are arranged around the receiving groove; the buffer block is arranged in the shock-absorbing groove; a first spring is arranged at the bottom of the shock-absorbing groove; the other end of the first spring is connected to the buffer block.
[0008] Preferably, the power mechanism includes a traction motor and a steel rope; the steel rope is connected to the car and the counterweight assembly; the traction motor drives the steel rope to move the car up and down.
[0009] Preferably, the counterweight assembly includes a counterweight block and a second guide rail seat; the top of the counterweight block is connected to the steel rope; and both sides of the counterweight block are slidably mounted on the second guide rail seat.
[0010] Preferably, a shock absorbing assembly is provided inside the car; the shock absorbing assembly includes a shock absorbing plate and a second spring; second springs are provided on the side walls on both sides of the car, and the other end of the second spring is connected to the shock absorbing plate.
[0011] Preferably, a sensor is provided at the bottom of the elevator shaft.
[0012] Preferably, the steel rope is a fiber core elevator rope with a columnar structure.
[0013] Preferably, during normal operation of the car, the buffer block extends to a distance higher than the installation plane of the buffer airbag.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. The present invention improves the stability of the car during up and down movement by arranging the installation cooperation between the first guide rail seat and the slider. At the same time, the clamping block provided on the top of the car is slidably installed in the clamping grooves on the side walls of the first guide rail seat to limit the position of the car during movement, thereby preventing strong vibration of the car during movement. While ensuring the safe movement of the car, it also improves the stability and comfort of the interior of the car.
[0016] 2. The present invention, by providing a buffer assembly, can absorb the energy of the car, gradually consuming the energy of the car to control its speed, thereby preventing the elevator from causing harm to passengers in an emergency. The buffer blocks arranged around the buffer airbag provide initial buffering. When the impact force acts on the buffer chamber, the buffer block shrinks into the shock-absorbing groove under the elastic force of the first spring, and the first spring absorbs part of the impact force. After the buffer block shrinks, the buffer airbag in the center of the buffer seat is exposed, and the buffer airbag further absorbs the impact force, reducing the impact force on the passengers in the car and weakening the feedback caused by the impact, thereby improving the safety performance of the device.
[0017] 3. The present invention provides a shock-absorbing component to buffer the vibration energy generated by the power mechanism during the up and down movement of the car, making the interior of the car more stable and improving the overall comfort of the elevator operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] FIG1 is a schematic diagram of the three-dimensional structure of a comfortable emergency-fall-proof safety elevator.
[0019] FIG2 is a schematic diagram of the internal structure of an elevator shaft of a comfortable emergency-fall-proof safety elevator.
[0020] FIG3 is a partial enlarged view of the installation of the clamping block and the first guide rail assembly of a comfortable anti-emergency fall safety elevator.
[0021] FIG4 is a schematic diagram of the three-dimensional structure of a car of a comfortable anti-emergency-fall safety elevator.
[0022] FIG5 is a schematic diagram of the three-dimensional structure of a buffer seat of a comfortable anti-emergency-fall safety elevator.
[0023] FIG6 is a cross-sectional view of the installation of a buffer assembly of a comfortable anti-emergency fall safety elevator.
[0024] FIG7 is a schematic diagram of the three-dimensional structure of the counterweight assembly of a comfortable anti-emergency fall safety elevator.
[0025] The numbers in the figure are: 1. Car; 11. Slider; 12. Block; 2. Elevator shaft; 21. First guide rail seat; 211. Slot; 22. Sensor; 3. Buffer seat; 31. Accommodating groove; 32. Shock-absorbing groove; 33. First spring; 4. Buffer block; 5. Buffer airbag; 6. Traction motor; 7. Steel rope; 8. Counterweight assembly; 81. Counterweight block; 82. Second guide rail seat; 9. Shock-absorbing plate. DETAILED DESCRIPTION
[0026] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] Referring to Figures 1 to 7: A comfortable anti-emergency fall safety elevator includes a car 1, a power mechanism, a counterweight assembly 8 and a buffer assembly; the power mechanism is arranged on the top of the car 1; one end of the power mechanism is connected to the counterweight assembly 8; the counterweight assembly 8 is used to offset the gravity during the operation of the elevator; the buffer assembly is arranged at the bottom of the car 1; sliders 11 are provided on the outer side walls of the car 1; the sliders 11 are slidably installed on the first guide rail seat 21; the first guide rail seat 21 is fixedly arranged in the elevator shaft 2; blocks 12 are provided at both ends of the top and bottom of the car 1; slots 211 are provided on the side walls on both sides of the first guide rail seat 21; the blocks 12 are slidably installed in the slots 211.
[0028] In actual use, the comfortable, emergency-fall-proof safety elevator uses a power mechanism to raise and lower the car 1. During the up-and-down movement of the car 1, the power mechanism is connected to the counterweight assembly 8, effectively balancing the weight of the car 1 and reducing the load on the power mechanism. The counterweight's weight is equal to the car 1's own weight plus half the elevator's rated load. During operation, the counterweight moves in the opposite direction of the car 1, ensuring smooth operation. The buffer assembly at the bottom of the car 1, one of the elevator's safety devices, absorbs energy from the car 1, gradually dissipating it to control its speed and prevent injury to passengers in an emergency. The mating arrangement of the first guide rail seat 21 and the slider 11 enhances the stability of the car 1 during its upward and downward movement. Furthermore, a clamping block 12, located at the top of the car 1 and slidably mounted in a slot 211 on either side of the first guide rail seat 21, limits the position of the car 1 during movement, preventing strong vibrations during movement. This ensures safe movement of the car 1 while also improving internal stability and comfort.
[0029] Referring to Figures 4 to 6: the buffer assembly includes a buffer seat 3, a buffer block 4 and a buffer airbag 5; the buffer seat 3 is arranged at the bottom of the car 1; a receiving groove 31 is provided at the center of the buffer seat 3; the buffer airbag 5 is arranged in the receiving groove 31; shock-absorbing grooves 32 are provided around the receiving groove 31; the buffer block 4 is arranged in the shock-absorbing groove 32; a first spring 33 is provided at the bottom of the shock-absorbing groove 32; the other end of the first spring 33 is connected to the buffer block 4.
[0030] By providing a buffer assembly, the energy of the car 1 can be absorbed, gradually consuming the energy of the car 1 to control its speed, thereby preventing the elevator from causing harm to passengers in an emergency. The buffer blocks 4 arranged around the buffer airbag 5 provide initial buffering. When the impact force acts on the buffer chamber, the buffer block 4 contracts into the shock-absorbing groove 32 under the elastic force of the first spring 33, and the first spring 33 absorbs a portion of the impact force. After the buffer block 4 contracts, the buffer airbag 5 in the center of the buffer seat 3 is exposed, and the impact force is further absorbed by the buffer airbag 5, reducing the impact force on the passengers in the car 1 and weakening the feedback caused by the impact, thereby improving the safety performance of the device.
[0031] 2 : the power mechanism includes a traction motor 6 and a steel rope 7 ; the steel rope 7 is connected to the car 1 and the counterweight assembly 8 ; the traction motor 6 drives the steel rope 7 to move the car 1 up and down.
[0032] The traction motor 6 adopts a flexible transmission mechanism traction machine, and the bottom end of the traction motor 6 is provided with a shock-absorbing base through threaded installation. The traction motor 6 pulls the car 1 through the steel rope 7 to achieve the up and down movement of the car 1.
[0033] 2 and 7 : the counterweight assembly 8 includes a counterweight block 81 and a second guide rail seat 82 ; the top of the counterweight block 81 is connected to the steel rope 7 ; and both sides of the counterweight block 81 are slidably mounted on the second guide rail seat 82 .
[0034] By providing counterweight assembly 8, the counterweight 81 balances the weight of car 1 during operation, ensuring smooth elevator operation. When car 1 ascends or descends, counterweight 81 offsets the force of gravity above car 1, ensuring smoother operation and preventing vibration. The counterweight, which weighs the same as the weight of car 1 plus half the rated load of the elevator, effectively balances the weight of car 1 and reduces the load on the powertrain.
[0035] As shown in Figure 4: a shock absorbing assembly is provided inside the car 1; the shock absorbing assembly includes a shock absorbing plate 9 and a second spring 91; second springs 91 are provided on both side walls of the car 1, and the other end of the second spring 91 is connected to the shock absorbing plate 9.
[0036] By providing a shock-absorbing component, the vibration energy generated by the power mechanism is buffered during the up and down movement of the car 1, making the interior of the car 1 more stable and improving the overall comfort of the elevator operation.
[0037] As shown in FIG2 , a sensor 22 is provided at the bottom of the elevator shaft 2 .
[0038] By setting up the sensor 22, the operating status of the car 1 can be monitored. If an abnormal situation is found, such as the car 1 stops running, the wire rope is broken, etc., the safety mechanism will be triggered immediately to ensure the safety of the passengers.
[0039] The steel rope 7 is a fiber core elevator rope with a columnar structure.
[0040] The fiber core elevator rope with a columnar structure has the advantages of high strength, low density, good corrosion resistance, good elasticity, and easy maintenance. It can improve the safety, comfort and reliability of the elevator and protect the safety and interests of passengers.
[0041] 6 : during normal operation of the car 1 , the buffer block 4 extends to a distance higher than the installation plane of the buffer airbag 5 .
[0042] During normal operation of the car 1, the buffer block 4 extends to a distance higher than the installation plane of the buffer airbag 5, so as to achieve multiple buffering effects, effectively buffer the impact force and ensure the safety of people's lives.
[0043] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.
Claims
1. A comfortable anti-sudden fall safety elevator, comprising a car (1), a power mechanism, a counterweight assembly (8) and a buffer assembly; characterized in that: The power mechanism is arranged on the top of the car (1); One end of the power mechanism is connected to the counterweight assembly (8); the counterweight assembly (8) is used to offset the gravity during the operation of the elevator; The buffer assembly is arranged at the bottom of the car (1); Sliders (11) are provided on both side walls outside the car (1); The slider (11) is slidably mounted on the first guide rail seat (21); The first guide rail seat (21) is fixedly arranged in the elevator shaft (2); The top and bottom ends of the car (1) are provided with clamping blocks (12); The first guide rail seat (21) is provided with a clamping groove (211) on both side walls; The card block (12) is slidably mounted in the card slot (211).
2. A comfortable anti-emergency fall safety elevator according to claim 1, characterized in that: The buffer assembly comprises a buffer seat (3), a buffer block (4) and a buffer airbag (5); The buffer seat (3) is arranged at the bottom of the car (1); A receiving groove (31) is provided at the center of the buffer seat (3); The buffer airbag (5) is arranged in the accommodating groove (31); Shock-absorbing grooves (32) are arranged around the accommodating groove (31); The buffer block (4) is arranged in the shock absorbing groove (32); A first spring (33) is provided at the bottom of the shock-absorbing groove (32); the other end of the first spring (33) is connected to the buffer block (4).
3. A comfortable emergency-fall prevention safety elevator according to claim 1, characterized in that: The power mechanism includes a traction motor (6) and a steel rope (7); The steel rope (7) is connected to the car (1) and the counterweight assembly (8); The traction motor (6) drives the steel rope (7) to move the car (1) up and down.
4. A comfortable anti-emergency fall safety elevator according to claim 3, characterized in that: The counterweight assembly (8) includes a counterweight block (81) and a second guide rail seat (82); The top of the counterweight (81) is connected to the steel rope (7); The two sides of the counterweight block (81) are slidably mounted on the second guide rail seat (82).
5. A comfortable anti-emergency fall safety elevator according to claim 1, characterized in that: A shock absorbing component is provided inside the car (1); The shock absorbing assembly includes a shock absorbing plate (9) and a second spring (91); A second spring (91) is provided on both side walls of the car (1), and the other end of the second spring (91) is connected to the shock absorbing plate (9).
6. A comfortable emergency-fall prevention safety elevator according to claim 1, characterized in that: A sensor (22) is provided at the bottom of the elevator shaft (2).
7. A comfortable emergency-fall prevention safety elevator according to claim 3, characterized in that: The steel rope (7) is a fiber core elevator rope with a columnar structure.
8. A comfortable emergency-fall prevention safety elevator according to claim 2, characterized in that: During normal operation of the car (1), the buffer block (4) extends to a distance higher than the installation plane of the buffer airbag (5).
Citation Information
Patent Citations
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