CN116812707A - A stall elevator hydraulic deceleration device - Google Patents

Abstract

The invention relates to the technical field of elevators, in particular to a stall elevator hydraulic speed reducing device, which comprises a car body, a miniature direct-current hydraulic push rod assembly, a rubber skirt assembly, an acceleration sensor and a microcontroller; the bottom of the outer side of the car body is provided with a cross groove, the notches in the four directions of the cross groove are respectively provided with the miniature direct current hydraulic push rod assemblies, and each miniature direct current hydraulic push rod assembly is connected with a rubber skirt assembly; the miniature direct current hydraulic push rod assembly consists of a first mounting support, a first bolt and a miniature direct current hydraulic push rod; the invention has the beneficial effects that: the hydraulic speed reducer of the whole elevator has simple structural design, low manufacturing cost and easy daily maintenance, and can effectively realize speed reduction of the stall elevator, thereby protecting personnel and property in the elevator from damage.

Description

A stall elevator hydraulic deceleration device

This case is a divisional application based on the parent case of an invention patent with an application date of 2018-03-29, application number 201810270814.5, and the name "A Hydraulic Reduction Device for Elevators".

Technical field

The invention relates to the technical field of elevators, and in particular to a hydraulic deceleration device for stall elevators.

Background technique

With the rapid development of economy and society, the increase of urban population density, and the rapid increase of high-rise buildings, the safety of elevators in high-rise buildings has attracted increasing attention from all parties. In recent years, accidents involving casualties caused by elevators falling out of control have become common, which has cast a considerable shadow on the public's psychology.

The elevators installed in the current high-rise buildings have no deceleration device in the event of stalling or falling or overspeeding to the top. Under the action of gravity acceleration or excess traction, the car will sit at the bottom or rush to the top. A large amount of kinetic energy will be generated in an instant, and it is difficult to completely buffer and release the kinetic potential energy through the buffer device at the bottom of the pit. This is an important reason for the ultimate loss of people and property.

The existing elevator hydraulic deceleration device cannot generate a stable force opposite to the gravity and traction force when the elevator stalls and falls or reaches the top, so it cannot achieve the purpose of decelerating the stalled elevator.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide an elevator hydraulic deceleration device that has a simple structural design and can effectively decelerate a stalled elevator.

In order to solve the above technical problems, the technical solution adopted by the present invention is: an elevator hydraulic deceleration device, including a car body, a micro DC hydraulic push rod assembly, a rubber skirt assembly, an acceleration sensor and a microcontroller; the car body The outer bottom of the cross groove is provided with a cross groove, and the micro DC hydraulic push rod assemblies are respectively provided on the notches in the four directions of the cross groove, and the micro DC hydraulic push rod assemblies of each group are connected to the rubber skirt assembly;

The micro DC hydraulic push rod assembly is composed of a first mounting bracket, a first bolt and a micro DC hydraulic push rod. The micro DC hydraulic push rod assembly passes through the first mounting bracket and the outside of the car body. Bottom connection, one end of the micro DC hydraulic push rod is connected to the first mounting bracket through the first bolt;

The rubber skirt assembly is composed of an assembly installation groove, a second installation support, a roller and a rubber skirt. The other end of the micro DC hydraulic push rod is connected through the roller and the rubber skirt assembly. The skirt assembly is connected to the surrounding bottom of the outer side of the car body through the assembly and installation groove. The cross-sectional shape of the assembly and installation groove in the vertical direction is L-shaped. The assembly and installation groove includes a horizontal part and a vertical part. The bottom two ends of the horizontal part are respectively provided with the second installation supports, and the two ends of the drum are respectively provided with connecting shafts. The drum is connected to the second installation supports through the connecting shafts. A first connecting groove is provided on the side, and one end of the rubber skirt is connected to the roller through the first connecting groove;

The acceleration sensor and the microcontroller are respectively arranged on the outer bottom of the car body;

The microcontroller is arranged in a machine room of an external elevator system, and the microcontroller and the acceleration sensor are connected through wireless signals.

Further, the shape of the rubber skirt is arc-shaped, and the length of the rubber skirt is equal to the length of the assembly installation groove.

Further, the rubber skirt assembly also includes a reinforcing rib and a second bolt. The other end of the micro DC hydraulic push rod is connected to the rubber skirt through a reinforcing rib. The rubber skirt is provided with a A second connecting groove is adapted to both ends of the reinforcing rib. The two ends of the reinforcing rib are inserted into the second connecting groove and connected to the rubber skirt through the second bolt.

Further, it also includes a buffer component, which is arranged in four buffer areas surrounded by the horizontal parts of the cross groove and the assembly installation groove. The buffer component includes an upper buffer layer, a buffer, and a lower buffer. layer and reaction force spring, the buffer component is connected to the outer bottom of the car body through the upper buffer layer, the upper end of the buffer is connected to the upper buffer layer, and the lower end of the buffer is connected to the lower buffer layer.

Further, the upper buffer layer and the lower buffer layer are composed of a first rubber layer, an airbag layer and a second rubber layer arranged in sequence from top to bottom.

Further, limiting columns are also provided between the buffers, and shock-absorbing pads are provided at the free ends of the limiting columns. The distance between the shock-absorbing pads and the lower buffer layer is equal to the compression working distance of the buffers.

Further, the horizontal position of the lower buffer layer is located below the free end of the rubber skirt.

Further, the buffer is a polyurethane buffer.

Furthermore, the acceleration sensor uses a CT series ICP/IEPE acceleration sensor.

Furthermore, the model used by the microcontroller is STM32F407ZGT6.

The beneficial effect of the present invention is that when the car body stalls, the elevator hydraulic deceleration device can quickly sense that the car body is in a stalled state and immediately send a signal to the microcontroller. The microcontroller controls four groups of micro DC hydraulic push rods. The oil pump on the machine works, and then drives the micro DC hydraulic push rod to drive the drum to rotate. The rubber skirt rotates counterclockwise to 90° with the drum, and four sets of friction forces opposite to the direction of gravity are generated between the rubber skirt and the electric well wall, thus Achieve the purpose of decelerating the stalled elevator; the entire elevator hydraulic deceleration device has a simple structural design, which not only has low manufacturing cost and is easy for daily maintenance, but also can effectively decelerate the stalled elevator, thereby protecting people and property in the elevator. be injured.

Description of the drawings

Figure 1 is a state diagram of an elevator hydraulic deceleration device in a silent state according to a specific embodiment of the present invention;

Figure 2 is a schematic structural diagram of a micro DC hydraulic push rod assembly and a rubber skirt assembly of an elevator hydraulic deceleration device according to a specific embodiment of the present invention;

Figure 3 is a schematic structural diagram of a rubber skirt of an elevator hydraulic deceleration device according to a specific embodiment of the present invention;

Figure 4 is a schematic structural diagram of a drum of an elevator hydraulic deceleration device according to a specific embodiment of the present invention;

Figure 5 is a working state diagram when the rubber skirt of an elevator hydraulic deceleration device is fully expanded to 90° according to the specific embodiment of the present invention;

Figure 6 is a schematic structural diagram of the bottom of the car body of an elevator hydraulic deceleration device according to a specific embodiment of the present invention;

Figure 7 is a schematic structural diagram of a buffer assembly of an elevator hydraulic deceleration device according to a specific embodiment of the present invention;

Figure 8 is a flow chart of a control method of an elevator hydraulic deceleration device according to a specific embodiment of the present invention;

Label description:

1. Car body; 11. Cross recess; 2. Micro DC hydraulic push rod assembly; 21. First installation support; 22. First bolt; 23. Micro DC hydraulic push rod;

3. Rubber skirt component; 31. Assembly and installation slot; 311. Horizontal part; 312. Vertical part; 32. Second mounting support; 33. Roller; 331. Connecting shaft; 332. First connecting slot; 34. rubber skirt;

341. Protrusion; 342. Second connecting groove; 35. Reinforcement rib; 36. Second bolt;

4. Acceleration sensor;

5. Buffer assembly; 51. Upper buffer layer; 511. First rubber layer; 512. Airbag layer; 513. Second rubber layer; 52. Buffer; 53. Lower buffer layer; 54. Limiting column; 55. Reduction Vibration pad.

Detailed ways

In order to describe the technical content, achieved objectives and effects of the present invention in detail, the following description will be made in conjunction with the embodiments and the accompanying drawings.

The most critical idea of the present invention is that when the car body stalls, the elevator hydraulic deceleration device can quickly sense that the car body is in a stalled state and immediately send a signal to the microcontroller. The microcontroller controls four groups of micro DC hydraulic thrusters. The oil pump on the rod works, and then drives the micro DC hydraulic push rod to drive the drum to rotate. The rubber skirt rotates counterclockwise to 90° with the drum, and four sets of friction forces opposite to the direction of gravity are generated between the rubber skirt and the electric well wall. This achieves the purpose of decelerating the stalled elevator.

Please refer to Figures 1 to 4, an elevator hydraulic deceleration device includes a car body 1, a micro DC hydraulic push rod assembly 2, a rubber skirt assembly 3, an acceleration sensor 4 and a microcontroller; the car body The outer bottom of 1 is provided with a cross groove 11, and the micro DC hydraulic push rod assemblies 2 are respectively provided on the slots in the four directions of the cross groove 11, and the micro DC hydraulic push rod assemblies 2 of each group are connected Rubber skirt component 3;

The micro DC hydraulic push rod assembly 2 is composed of a first mounting support 21, a first bolt 22 and a micro DC hydraulic push rod 23. The micro DC hydraulic push rod assembly 2 passes through the first mounting support 21 and the micro DC hydraulic push rod. The outer bottom of the car body 1 is connected, and one end of the micro DC hydraulic push rod 23 is connected to the first mounting bracket 21 through the first bolt 22;

The rubber skirt assembly 3 is composed of an assembly installation groove 31, a second installation support 32, a roller 33 and a rubber skirt 34. The other end of the micro DC hydraulic push rod 23 passes through the roller 33 and the rubber skirt. The rubber skirt component 3 is connected to the surrounding bottom of the outer side of the car body 1 through the assembly and installation groove 31. The vertical cross-sectional shape of the assembly and installation groove 31 is L-shaped. The assembly and installation groove 31 includes a horizontal part 311 and a vertical part 312. The second installation supports 32 are respectively provided at both ends of the bottom of the horizontal part 311. The two ends of the drum 33 are respectively provided with connecting shafts 331, so The roller 33 is connected to the second mounting bracket 32 through a connecting shaft 331. A first connecting groove 332 is provided on the side of the roller 33. One end of the rubber skirt 34 passes through the first connecting groove 332 and The roller 33 is connected;

The acceleration sensor 4 and the microcontroller are respectively arranged on the outer bottom of the car body 1;

The microcontroller is installed in the machine room of an external elevator system, and the microcontroller and the acceleration sensor 4 are connected through wireless signals.

It can be seen from the above description that the working process of the above-mentioned elevator hydraulic deceleration device is:

Four groups of micro DC hydraulic push rod assemblies 2 are designed at the bottom of the car body 1. Each group of micro DC hydraulic push rod assemblies 2 is equipped with a set of rubber skirt components 3, and the four groups of rubber skirt components 3 are connected respectively. Around the bottom of the elevator car body 1, the acceleration sensor 4 located at the outer bottom of the car body 1 is normalized and continuously working, and is used to monitor the acceleration value during the operation of the elevator. The microcontroller, acceleration sensor 4, micro DC hydraulic push rod assembly 2 and rubber skirt assembly 3 together constitute the elevator hydraulic deceleration device.

Please refer to the flow chart of a control method of an elevator hydraulic deceleration device shown in Figure 8:

When the car body 1 falls or rises, the acceleration sensor 4 begins to continuously determine whether the acceleration value of the car body 1 falling or rising exceeds the threshold X. When the acceleration value of the car body 1 during operation is less than the threshold X, the elevator deceleration device is in a silent state. Figure 1 shows a diagram of the elevator hydraulic deceleration device in a silent state.

When the car body 1 is in stall operation, that is, the acceleration value of the car body 1 is greater than the threshold X, the acceleration sensor 4 sends a working signal to the microcontroller. The microcontroller is installed in the machine room of the elevator system, and the machine room is usually in the building The highest level of the object, so the position of the microcontroller is not shown in the accompanying drawings. The microcontroller drives the oil pumps on the four sets of micro DC hydraulic push rods 23 located at the bottom of the car body 1. The oil pump drives the micro DC hydraulic push rods 23. Push the roller 33 to rotate counterclockwise, thereby driving the rubber skirt 34 to rotate counterclockwise. At this time, the rubber skirt 34 of the rubber skirt assembly 3 stretches as the roller 33 rotates. It should be noted that when the roller 33 When the roller 33 rotates to 90°, the rubber skirt 34 driven by the four sets of micro DC hydraulic push rods 23 is in frictional contact with the elevator shaft wall. It is in close contact and simultaneously generates four sets of friction forces that are opposite to the gravity acceleration of the elevator and are enough to reduce the elevator acceleration value. As shown in Figure 5, the working state diagram of the rubber skirt 34 of the elevator hydraulic deceleration device is fully expanded to 90°.

It can be seen from the above description that the beneficial effects of the above-mentioned elevator hydraulic deceleration device are:

When the car body 1 stalls, the elevator hydraulic deceleration device can quickly sense that the car body 1 is in a stalled state, and immediately sends a signal to the microcontroller. The microcontroller controls the oil pumps on the four sets of micro DC hydraulic push rods 23. , and then drive the micro DC hydraulic push rod 23 to drive the drum 33 to rotate. The rubber skirt 34 rotates counterclockwise to 90° with the drum 33, and four sets of friction forces opposite to the direction of gravity are generated between the rubber skirt 34 and the electric well wall. Thereby achieving the purpose of decelerating the stalled elevator; the entire elevator hydraulic deceleration device has a simple structural design, which not only has low manufacturing cost and is easy for daily maintenance, but also can effectively decelerate the stalled elevator, thus protecting people and property in the elevator. not damaged.

Furthermore, the shape of the rubber skirt 34 is arc-shaped, and the length of the rubber skirt 34 is equal to the length of the assembly installation groove 31 .

It can be seen from the above description that by designing the shape of the rubber skirt 34 to be arc-shaped and the length of the rubber skirt 34 being designed to be equal to the length of the assembly installation groove 31, when the elevator is in a stalled state, the rubber skirt 34 and the elevator shaft wall will Frictional contact, the arc-shaped rubber skirt 34 not only has good strength, but also has a good deceleration effect.

Further, the rubber skirt 34 assembly 3 also includes a reinforcing rib 35 and a second bolt 36. The other end of the micro DC hydraulic push rod 23 is connected to the rubber skirt 34 through the reinforcing rib 35. The rubber skirt 34 A second connecting groove 342 matching both ends of the reinforcing rib 35 is provided on the surface close to the arc center. The two ends of the reinforcing rib 35 are inserted into the second connecting groove 342 and passed through the second bolt 36 Connected to the rubber skirt 34.

As can be seen from the above description, please refer to Figure 2. By setting the reinforcing rib 35 and the second bolt 36, the other end of the micro DC hydraulic push rod 23 is connected to the rubber skirt 34 through the reinforcing rib 35, and then to the rubber skirt. Component 3 is connected, and at the same time, both ends of the reinforcing rib 35 are inserted into the second connection groove 342 and connected to the rubber skirt 34 through the second bolt 36, which can increase the stiffness of the rubber skirt 34 and withstand the drive of the micro DC hydraulic push rod 23. force.

Further, it also includes a buffer component 5, which is disposed in four buffer areas surrounded by the cross groove 11 and the horizontal part 311 of the assembly installation groove 31. The buffer component 5 includes an upper buffer layer. 51. Buffer 52, lower buffer layer 53 and reaction spring. The buffer assembly 5 is connected to the outer bottom of the car body 1 through the upper buffer layer 51. The upper end of the buffer 52 is connected to the upper buffer layer 51. , the lower end of the buffer 52 is connected to the lower buffer layer 53 .

As can be seen from the above description, please refer to Figures 6 and 7. When the elevator is in contact with the ground, the buffer assembly 5 composed of the upper buffer layer 51, the lower buffer layer 53 and the buffer 52 can play a very good role in protecting the elevator. The buffering effect reduces the impact force between the elevator and the ground and protects people and property in the elevator from losses.

Further, the upper buffer layer 51 and the lower buffer layer are composed of a first rubber layer 511, an airbag layer 512 and a second rubber layer 513 arranged in sequence from top to bottom.

As can be seen from the above description, please refer to Figures 6 and 7. By designing the upper buffer layer 51 and the lower buffer layer 53 as a first rubber layer 511, an airbag layer 512 and a second rubber layer arranged sequentially from top to bottom. The rubber layer and the air bag layer 512 have a good buffering effect and improve the buffering effect of the buffer layer.

Furthermore, limiting posts 54 are also provided between the buffers 52. The free ends of the limiting posts 54 are provided with shock-absorbing pads 55. The distance between the shock-absorbing pads 55 and the lower buffer layer 53 is equal to the distance between the buffer layers 53 and the lower buffer layer 53. The compression working distance of the device 52.

As can be seen from the above description, please refer to Figures 6 and 7. When the elevator contacts the ground, the buffer assembly 5 begins to play a buffering role, and the buffer 52 begins to compress. When the buffer 52 cannot stop the elevator from stopping, the limiting column 54 and the shock-absorbing pad 55 on the limiting column 54 begin to play the role of secondary buffering, further restricting the downward movement of the elevator until the elevator stops moving.

Further, the horizontal position of the lower buffer layer 53 is located below the free end of the rubber skirt 34 .

It can be seen from the above description that by designing the horizontal position of the lower buffer layer 53 below the free end of the rubber skirt 34, the rubber skirt assembly 3 can be prevented from being damaged due to contact with the ground in advance. The lower buffer layer 53 and the rubber skirt 34 The distance between the free ends should be the sum of the compression working distance of the buffer 52 and the compression working distance of the limiting column 54 and the shock absorbing pad 55.

Further, the buffer 52 is a polyurethane buffer 52 .

It can be seen from the above description that by using the polyurethane buffer 52, the polyurethane buffer 52 has the characteristics of good buffering effect, good impact resistance and pressure resistance, and the polyurethane buffer 52 not only has no noise, no sparks during the buffering process, and has good explosion-proof properties, And it is safe and reliable.

Furthermore, the acceleration sensor 4 uses a CT series ICP/IEPE acceleration sensor.

Furthermore, the model used by the microcontroller is STM32F407ZGT6.

Please refer to Figures 1-8, Embodiment 1 of the present invention is:

An elevator hydraulic deceleration device, including a car body 1, a micro DC hydraulic push rod assembly 2, a rubber skirt assembly 3, an acceleration sensor 4 and a microcontroller; the outer bottom of the car body 1 is provided with a cross groove 11, The micro DC hydraulic push rod assemblies 2 are respectively provided on the slots in the four directions of the cross groove 11, and each group of the micro DC hydraulic push rod assemblies 2 is connected to the rubber skirt assembly 3;

The micro DC hydraulic push rod assembly 2 is composed of a first mounting support 21, a first bolt 22 and a micro DC hydraulic push rod 23. The micro DC hydraulic push rod assembly 2 passes through the first mounting support 21 and the micro DC hydraulic push rod. The outer bottom of the car body 1 is connected, and one end of the micro DC hydraulic push rod 23 is connected to the first mounting bracket 21 through the first bolt 22;

The rubber skirt assembly 3 is composed of an assembly installation groove 31, a second installation support 32, a roller 33 and a rubber skirt 34. The other end of the micro DC hydraulic push rod 23 passes through the roller 33 and the rubber skirt. The rubber skirt component 3 is connected to the surrounding bottom of the outer side of the car body 1 through the assembly and installation groove 31. The vertical cross-sectional shape of the assembly and installation groove 31 is L-shaped. The assembly and installation groove 31 includes a horizontal part 311 and a vertical part 312. The second installation supports 32 are respectively provided at both ends of the bottom of the horizontal part 311. The two ends of the drum 33 are respectively provided with connecting shafts 331, so The roller 33 is connected to the second mounting bracket 32 through a connecting shaft 331. A first connecting groove 332 is provided on the side of the roller 33. One end of the rubber skirt 34 passes through the first connecting groove 332 and The roller 33 is connected;

The acceleration sensor 4 and the microcontroller are respectively arranged on the outer bottom of the car body 1;

The microcontroller is installed in the machine room of an external elevator system, and the microcontroller and the acceleration sensor 4 are connected through wireless signals.

Please refer to FIG. 2 , the shape of the rubber skirt 34 is arc-shaped, and the length of the rubber skirt 34 is equal to the length of the assembly installation groove 31 .

The rubber skirt assembly 3 also includes a reinforcing rib 35 and a second bolt 36. The other end of the micro DC hydraulic push rod 23 is connected to the rubber skirt 34 through the reinforcing rib 35. The rubber skirt 34 is close to the arc center. There are second connecting grooves 342 on the surface that match the two ends of the reinforcing rib 35. The two ends of the reinforcing rib 35 are inserted into the second connecting groove 342 and pass through the second bolt 36 and the rubber. Skirt 34 connections.

Referring to Figures 6 and 7, it also includes a buffer component 5. The buffer component 5 is arranged in four buffer areas surrounded by the cross groove 11 and the horizontal portion 311 of the assembly installation groove 31. The buffer assembly 5 includes an upper buffer layer 51, a buffer 52, a lower buffer layer 53 and a reaction spring. The buffer assembly 5 is connected to the outer bottom of the car body 1 through the upper buffer layer 51. The buffer 52 is The upper end of the buffer 52 is connected to the upper buffer layer 51 , and the lower end of the buffer 52 is connected to the lower buffer layer 53 .

The upper buffer layer 51 and the lower buffer layer are composed of a first rubber layer 511, an airbag layer 512 and a second rubber layer 513 arranged in sequence from top to bottom.

Limiting posts 54 are also provided between the buffers 52 . The free ends of the limiting posts 54 are provided with shock-absorbing pads 55 . The distance between the shock-absorbing pads 55 and the lower buffer layer 53 is equal to the distance between the buffers 52 and the buffers 52 . Compress working distance.

The horizontal position of the lower buffer layer 53 is located below the free end of the rubber skirt 34 .

The buffer 52 is a polyurethane buffer 52 .

The acceleration sensor 4 uses a CT series ICP/IEPE acceleration sensor.

The model used by the microcontroller is STM32F407ZGT6.

To sum up, the invention provides an elevator hydraulic deceleration device. When the car body stalls, the elevator hydraulic deceleration device can quickly sense that the car body is in a stall state and immediately send a signal to the microcontroller. The microcontroller By controlling the operation of the oil pumps on the four sets of micro DC hydraulic push rods, the micro DC hydraulic push rods are driven to drive the drum to rotate. The rubber skirt rotates counterclockwise to 90° with the drum, and four groups of oil pumps are generated between the rubber skirt and the electric shaft wall. The friction force opposite to the direction of gravity can achieve the purpose of decelerating the stalled elevator; the entire elevator hydraulic deceleration device has a simple structural design, which not only has low manufacturing cost and is easy for daily maintenance, but also can effectively decelerate the stalled elevator. Thereby protecting people and property in the elevator from damage.

By designing the shape of the rubber skirt into an arc, the length of the rubber skirt is designed to be equal to the length of the assembly installation slot. When the elevator is in a stalled state, frictional contact occurs between the rubber skirt and the elevator shaft wall. The arc-shaped rubber skirt Not only does it have good strength, but it also has good deceleration effect.

By setting the reinforcing rib and the second bolt, connect the other end of the micro DC hydraulic push rod through the reinforcing rib and the rubber skirt, and then connect it to the rubber skirt assembly. At the same time, insert both ends of the reinforcing rib into the second connection groove and pass through The second bolt is connected to the rubber skirt, which can increase the stiffness of the rubber skirt and withstand the driving force of the micro DC hydraulic push rod.

When the elevator comes into contact with the ground, the buffer component composed of the upper buffer layer, the lower buffer layer and the buffer can play a good buffering role for the elevator, reduce the impact force between the elevator and the ground, and protect the people in the elevator. and property is not damaged.

By designing both the upper buffer layer and the lower buffer layer to be composed of a first rubber layer, an airbag layer and a second rubber layer arranged in sequence from top to bottom, the rubber layer and the airbag layer have a good buffering effect and improve the performance of the buffer layer. Buffering effect.

When the elevator comes into contact with the ground, the buffer component begins to play a buffering role and the buffer begins to compress. When the buffer cannot stop the elevator from stopping, the limit column and the shock-absorbing pad on the limit column begin to play a secondary buffering role. Further restrict the elevator from running downward until the elevator stops moving.

By designing the horizontal position of the lower buffer layer below the free end of the rubber skirt, it is possible to prevent the rubber skirt assembly from contacting the ground first and causing damage. The distance between the lower buffer layer and the free end of the rubber skirt should be The sum of the compression working distance of the device and the compression working distance of the limiting column and shock absorbing pad.

By using polyurethane buffers, polyurethane buffers have the characteristics of good buffering effect, impact resistance, and pressure resistance. Polyurethane buffers are not only noiseless, sparkless, and explosion-proof during the buffering process, but also safe and reliable.

The above are only embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in related technical fields, are equally included in within the scope of patent protection of this invention.

Claims (9)

1. A stall elevator hydraulic deceleration device, characterized in that it includes a car body, a micro DC hydraulic push rod assembly, a rubber skirt assembly, an acceleration sensor and a microcontroller; the outer bottom of the car body is provided with a cross groove , the micro DC hydraulic push rod assemblies are respectively provided on the slots in the four directions of the cross groove, and each group of the micro DC hydraulic push rod assemblies is connected to a rubber skirt assembly; The micro DC hydraulic push rod assembly is composed of a first mounting bracket, a first bolt and a micro DC hydraulic push rod. The micro DC hydraulic push rod assembly passes through the first mounting bracket and the outside of the car body. Bottom connection, one end of the micro DC hydraulic push rod is connected to the first mounting bracket through the first bolt; The rubber skirt assembly is composed of an assembly installation groove, a second installation support, a roller and a rubber skirt. The other end of the micro DC hydraulic push rod is connected through the roller and the rubber skirt assembly. The skirt assembly is connected to the surrounding bottom of the outer side of the car body through the assembly and installation groove. The cross-sectional shape of the assembly and installation groove in the vertical direction is L-shaped. The assembly and installation groove includes a horizontal part and a vertical part. The bottom two ends of the horizontal part are respectively provided with the second installation supports, and the two ends of the drum are respectively provided with connecting shafts. The drum is connected to the second installation supports through the connecting shafts. A first connection groove is provided on the side, and a protrusion is provided at one end of the rubber skirt. The rubber skirt is inserted into the first connection groove and connected to the roller through the protrusion; The acceleration sensor and the microcontroller are respectively arranged on the outer bottom of the car body; The microcontroller is installed in the machine room of the external elevator system, and the microcontroller and the acceleration sensor are connected through wireless signals; The rubber skirt assembly also includes a reinforcing rib and a second bolt. The other end of the micro DC hydraulic push rod is connected to the rubber skirt through a reinforcing rib. The rubber skirt is provided with a surface close to the arc center and the The two ends of the reinforcing rib are matched with the second connecting groove, and the two ends of the reinforcing rib are inserted into the second connecting groove and connected to the rubber skirt through the second bolt. 2. The stall elevator hydraulic deceleration device according to claim 1, characterized in that the shape of the rubber skirt is arc-shaped, and the length of the rubber skirt is equal to the length of the assembly and installation groove. 3. The stall elevator hydraulic deceleration device according to claim 1, further comprising a buffer assembly, the buffer assembly being arranged in four buffer areas surrounded by the horizontal parts of the cross groove and the assembly installation groove. , the buffer assembly includes an upper buffer layer, a buffer, a lower buffer layer and a reaction spring. The buffer assembly is connected to the outer bottom of the car body through the upper buffer layer. The upper end of the buffer is connected to the upper buffer. layer, and the lower end of the buffer is connected to the lower buffer layer. 4. The stall elevator hydraulic deceleration device according to claim 3, wherein the upper buffer layer and the lower buffer layer are composed of a first rubber layer, an air bag layer and a second rubber layer arranged in sequence from top to bottom. . 5. The stall elevator hydraulic deceleration device according to claim 3, characterized in that, limiting columns are further provided between the buffers, and shock-absorbing pads are provided at the free ends of the limiting columns, and the shock-absorbing pads and The distance of the lower buffer layer is equal to the compression working distance of the buffer. 6. The stall elevator hydraulic deceleration device according to claim 3, characterized in that the horizontal position of the lower buffer layer is located below the free end of the rubber skirt. 7. The stall elevator hydraulic deceleration device according to claim 3, characterized in that the buffer is a polyurethane buffer. 8. The stall elevator hydraulic deceleration device according to claim 1, characterized in that the acceleration sensor adopts a CT series ICP/IEPE acceleration sensor. 9. The stall elevator hydraulic deceleration device according to claim 1, characterized in that the model of the microcontroller is STM32F407ZGT6.