Hydraulic oil cylinder buffer plug for elevator
By designing a multi-stage oil cylinder device and an adjustable mounting plate hydraulic cylinder buffer plug, the problem of high height of traditional elevator buffers is solved, and a stronger buffering effect and flexible adaptability of elevator shafts is achieved, which improves safety and stability.
Patent Information
- Application Number
- CN202422347960.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The height of traditional elevator hydraulic buffers is large, resulting in the deep excavation of the bottom pit of the elevator shaft increases construction costs and puts forward high requirements on the shaft size.
A hydraulic cylinder buffer plug with multiple and multi-stage oil cylinder devices is designed, and flexible adjustment and multi-stage cushioning are achieved through removable mounting plates and multiple sets of oil cylinder buffer devices, combining support columns and pressure sensors to control elevator emergency stops.
It achieves stronger buffering effect, flexibly adapts to different elevator needs, reduces the requirements for deep excavation of elevator shafts, and improves safety and stability.
Smart Images
Figure CN223150020U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevators, in particular to a hydraulic cylinder buffer plug for an elevator. Background Art
[0002] The hydraulic buffer device used in modern elevators usually consists of an oil cylinder, a plunger and a conical oil passing rod. Their working principle is to use the damping force of the liquid to slow down the impact when the car or counterweight falls, and at the same time use the spring to make it return to its original position. When the car or counterweight impacts the buffer, the plunger moves downward, compressing the oil in the oil cylinder, and the oil overflows through the oil passing hole at the bottom of the plunger into the inside of the plunger, converting kinetic energy into heat energy, thereby decelerating and stopping the movement of the elevator.
[0003] The traditional elevator hydraulic buffer adopts a single-stage structure. Since the compression stroke of the plunger is almost equal to the height of the oil cylinder, the height of the entire buffer is basically equal to the sum of the heights of the oil cylinder and the plunger. This design results in a relatively large height of the buffer, which requires the elevator shaft pit to be dug deeper, thus increasing the construction cost of the shaft and imposing higher requirements on the shaft dimensions. Summary of the Utility Model
[0004] In order to solve the above various problems, the utility model provides a hydraulic cylinder buffer plug for an elevator, which is provided with multiple and multi-stage oil cylinder devices and can be flexibly adjusted, and has better buffering ability.
[0005] In order to solve the above technical problems, the technical solution proposed by the utility model is: a hydraulic cylinder buffer plug for an elevator, including a base and a mounting plate. The base is provided with a number of mounting holes for cooperating with the mounting plate, and the number of the mounting plates is detachably arranged in the mounting holes. A first oil cylinder buffer device is arranged at the center above the mounting plate, and a number of second oil cylinder buffer devices are arranged around the first oil cylinder buffer device at the edge above the mounting plate. A number of third oil cylinder buffer devices are arranged around the first oil cylinder buffer device between the first oil cylinder buffer device and the second oil cylinder buffer device above the mounting plate. The first oil cylinder buffer device, the second oil cylinder buffer device and the third oil cylinder buffer device are composed of an oil cylinder and a plunger. The first oil cylinder buffer device, the second oil cylinder buffer device and the third oil cylinder buffer device are respectively provided with three, one and two plungers distributed up and down. Springs are arranged between the adjacent upper and lower plungers and between the lowermost plunger and the oil cylinder. Support columns are connected near the four corners above the mounting plate.
[0006] Further, the mounting plate is fixed in the mounting hole by screws provided at its four corners.
[0007] Based on the above characteristics, it is convenient to disassemble and install the mounting plate to adjust its position.
[0008] Further, there are six second oil cylinder buffer devices which are evenly spaced, and there are three third oil cylinder buffer devices which are evenly spaced.
[0009] Based on the above features, multiple second and third oil cylinder buffer devices evenly spaced can buffer the elevator evenly, with good buffering effect.
[0010] Further, the diameters of multiple plungers on the same first and third oil cylinder buffer devices decrease successively from bottom to top and are nested up and down.
[0011] Based on the above features, it can automatically stably stack and press to achieve buffering when subjected to the elevator pressure.
[0012] Further, a pressure sensor is connected above any support column.
[0013] Based on the above features, the gravity of the elevator car can be monitored. When the elevator falls, it will generate a large pressure on it, so as to control the elevator to stop suddenly and effectively avoid danger.
[0014] The advantages of the present utility model compared with the prior art are as follows: Multiple mounting plates are detachably installed in the mounting holes, which is convenient to select and adjust the number and position of the mounting plates according to the actual needs of the elevator, so as to realize the adjustment of multiple groups of oil cylinder buffer devices, which is flexible and practical. Multiple oil cylinder buffer devices with different levels are arranged on each mounting plate, which can buffer the elevator at multiple levels at different positions, which is beneficial to ensure the stability and safety in the elevator car, and the buffering effect increases gradually with the descent of the elevator, which can effectively cope with the impact of the elevator descent, and the buffering ability is stronger. In addition, the support column can limit the descent height of the elevator, avoid the elevator directly hitting the bottom and damaging the oil cylinder buffer device, with high safety. Description of the Drawings
[0015] Figure 1 is the three-dimensional view of the present utility model Figure 1 ;
[0016] Figure 2 is the three-dimensional view of the present utility model Figure 2 ;
[0017] Figure 3 is the front view of the present utility model;
[0018] Figure 4 is the top view of the present utility model.
[0019] As shown in the figure: 1, base; 2, mounting plate; 3, mounting hole; 4, oil cylinder; 5, plunger; 6, spring; 7, support column; 8, screw; 9, pressure sensor. Detailed Embodiment
[0020] The present utility model will be further described in detail below with reference to the drawings.
[0021] Combined with the attached Figure 2 and the attached Figure 4 , a hydraulic cylinder buffer plug for an elevator, comprising a base 1 and a mounting plate 2. A number of mounting holes 3 for mating with the mounting plate 2 are provided on the base 1. A number of the mounting plates 2 are detachably arranged in the mounting holes 3. The mounting plate 2 is fixed in the mounting hole 3 by screws 8 provided at its four corners, facilitating the disassembly and assembly of the mounting plate 2 to adjust its position.
[0022] Combined with the attached Figure 1 and the attached Figure 4 , a first hydraulic cylinder buffer device is provided at the center above the mounting plate 2. A number of second hydraulic cylinder buffer devices are arranged around the first hydraulic cylinder buffer device at the edge above the mounting plate 2. A number of third hydraulic cylinder buffer devices are arranged around the first hydraulic cylinder buffer device between the first hydraulic cylinder buffer device and the second hydraulic cylinder buffer device above the mounting plate 2. Six of the second hydraulic cylinder buffer devices are provided and are evenly spaced. Three of the third hydraulic cylinder buffer devices are provided and are evenly spaced. The multiple evenly spaced second hydraulic cylinder buffer devices and third hydraulic cylinder buffer devices can buffer the elevator evenly, and the buffering effect is good.
[0023] Combined with the attached Figure 1 and the attached Figure 3 , the first hydraulic cylinder buffer device, the second hydraulic cylinder buffer device and the third hydraulic cylinder buffer device are composed of a hydraulic cylinder 4 and a plunger 5. Three, one, and two vertically distributed plungers 5 are respectively provided on the first hydraulic cylinder buffer device, the second hydraulic cylinder buffer device and the third hydraulic cylinder buffer device. Springs 6 are provided between the adjacent upper and lower plungers 5 and between the lowermost plunger 5 and the hydraulic cylinder 4. The multiple plungers 5 on the same first hydraulic cylinder buffer device and third hydraulic cylinder buffer device decrease in diameter from bottom to top and are nested vertically, and can automatically and stably stack under the elevator pressure to achieve buffering.
[0024] Combined with the attached Figure 1 and the attached Figure 4 , support columns 7 are connected and provided near the four corners above the mounting plate 2. A pressure sensor 9 is connected and provided above any one of the support columns 7, which can monitor the gravity of the elevator car. When the elevator falls, a large pressure will be generated on it, thereby controlling the elevator to stop suddenly and effectively avoiding danger.
[0025] Specific embodiments of the present utility model: Install and fix the base 1 at the bottom of the elevator shaft. Select an appropriate number of mounting plates 2 and install them in the mounting holes 3 at appropriate positions according to the requirements of the elevator. Then use screws 8 to fix them. When the elevator car descends to the bottom, it first contacts the plunger 5 at the top level of the oil cylinder buffer device one and exerts pressure on it. The plunger 5 moves downward into the plunger 5 at its next level, and at the same time, the spring 6 is compressed. The two cooperate to achieve the first-level buffering of the elevator car. As the motor car continues to descend, it contacts the plunger 5 at the top level of the oil cylinder buffer device three. At this time, the plunger 5 at the top level of the oil cylinder buffer device three and the secondary plunger 5 of the oil cylinder buffer device one are pressed downward and compress the corresponding springs 6, thereby achieving the second-level buffering of the elevator car. The motor car continues to descend and contacts the plunger 5 on the oil cylinder buffer device two and exerts extrusion on it. At this time, the plungers 5 at the lowest levels of the oil cylinder buffer device one and the oil cylinder buffer device three and the plunger 5 of the oil cylinder buffer device two descend and compress the corresponding springs 6, achieving the third-level buffering of the elevator car. If the elevator car continues to fall and contacts the support column 7, the support column 7 will support it, and the pressure sensor 9 controls the elevator to stop urgently through the external controller connected to it after bearing a large pressure of the elevator car, achieving emergency avoidance.
[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; for those of ordinary skill in the art, the specific meaning of the above terms in the present utility model can be understood according to specific situations.
[0027] The above describes the present utility model and its embodiments. Such a description is not restrictive. What is shown in the drawings is only one of the embodiments of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural forms and embodiments without creative efforts without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.
Claims
1. A hydraulic cylinder buffer plug for an elevator, comprising a base (1) and a mounting plate (2), characterized in that: The base (1) is provided with a number of mounting holes (3) for fitting the mounting plates (2). A number of the mounting plates (2) are detachably arranged in the mounting holes (3). At the center above the mounting plate (2), there is a first oil cylinder buffer device. Around the first oil cylinder buffer device at the edge above the mounting plate (2), there are a number of second oil cylinder buffer devices. Above the mounting plate (2), between the first oil cylinder buffer device and the second oil cylinder buffer devices and around the first oil cylinder buffer device, there are a number of third oil cylinder buffer devices. The first oil cylinder buffer device, the second oil cylinder buffer devices and the third oil cylinder buffer devices are composed of an oil cylinder (4) and a plunger (5). The first oil cylinder buffer device, the second oil cylinder buffer devices and the third oil cylinder buffer devices are respectively provided with three, one and two plungers (5) distributed vertically. Between the adjacent upper and lower plungers (5) and between the lowermost plunger (5) and the oil cylinder (4), there are springs (6). Near the four corners above the mounting plate (2), there are support columns (7) connected.
2. The hydraulic cylinder buffer plug for an elevator according to claim 1, characterized in that: The mounting plate (2) is fixed in the mounting hole (3) by screws (8) provided at its four corners.
3. The hydraulic cylinder buffer plug for an elevator according to claim 1, characterized in that: There are six second oil cylinder buffer devices which are arranged at equal intervals, and there are three third oil cylinder buffer devices which are arranged at equal intervals.
4. A hydraulic cylinder buffer plug for an elevator according to claim 1, characterized in that: On the same first oil cylinder buffer device and third oil cylinder buffer device, the diameters of the multiple plungers (5) decrease successively from bottom to top and are nested vertically.
5. A hydraulic cylinder buffer plug for an elevator according to claim 1, characterized in that: Above any one of the support columns (7), there is a pressure sensor (9) connected.