A compound elevator buffer and its working method
A buffer and composite technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problems of inability to achieve buffer characteristics, slow changes in ambient temperature, etc.
Active Publication Date: 2019-01-29
TAIYUAN UNIV OF TECH
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- Application Information
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Problems solved by technology
No matter which method is adopted, the ideal cushioning characteristics cannot be achieved, because the ambient temperature changes randomly and slowly
Method used
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[0020] Such as figure 1 As shown, a composite elevator buffer includes the upper part of the piston 1, the lower part of the piston 2, the rubber O-ring 3, the end cover 4, the cylinder 5, the conical spring 6, the bolt 7, the breathing hole 8, the pressure relay 9, the electromagnetic The valve 10 and the first valve 11 are assembled into a combination. The upper part of the piston 1 is formed by superimposing two cylinders made of metal materials, wherein the outer diameter of the upper cylinder matches the inner diameter of the end cap 4, and the lower cylinder The outer diameter matches the inner diameter size of the cylinder 5. The lower part of the piston 2 is a hollow cylinder whose outer diameter matches the inner diameter of the cylinder 5 . A rubber sealing ring 3 is installed between the upper part 1 of the piston and the lower part 2 of the piston. The rubber sealing ring 3 is an O-ring, and its outer diameter matches the inner diameter of the cylinder 5. The uppe...
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The invention relates to the field of elevator safety, in particular to a combined type elevator buffer and a working method thereof. The combined type elevator buffer comprises a piston, a cylinder, a spring arranged between the piston and the bottom of the cylinder, and an end cover arranged at the mouth part of the cylinder and provided with a breathing hole, wherein a piston through hole is formed in the center of the end cover, two small holes are formed at the bottom of the cylinder, one end of the first small hole is connected to a first valve at the other end in the cylinder, and one end of the second small hole is connected to a second valve connected with the other end in the cylinder and controlled by pressure. The combined type elevator buffer has the superimposed buffering characteristics of two types of buffers, namely an energy consumption type buffer and an energy storage type buffer; the buffering characteristics are not affected by environment temperature; bounce cannot occur during buffering; and the descending speed of a lift car has a soft landing effect of being quick first and then slow.
Description
technical field [0001] The invention relates to the field of elevator safety, in particular to a composite elevator buffer and a working method thereof. Background technique [0002] Elevator buffers are usually installed at the very bottom of the elevator shaft. When the elevator car is seriously out of control (for example, the traction wire rope is broken), the wire rope is broken, which means that the elevator car loses traction and the car with the rated load accelerates down in the form of free fall. , the elevator car will rush to the bottom of the elevator shaft and will not stop until the car hits the buffer (commonly known as squatting accident). The elevator buffer is a safety device that provides the final safety guarantee for the passengers in the elevator car in the event of an elevator squatting accident. The buffer will consume and buffer the strong impact force of the car, and reduce the degree of damage to passengers caused by the impact force. The colli...
Claims
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IPC IPC(8): B66B5/28F16F13/00
CPCB66B5/282F16F13/007
Inventor 窦银科常晓敏陈燕张灵王宇晖
Owner TAIYUAN UNIV OF TECH