Unlock instant, AI-driven research and patent intelligence for your innovation.

Elevator buffer

A buffer and elevator technology, applied in elevators, transportation and packaging, etc., can solve the problems of complex structure, inability to prevent the plunger from detaching from the oil cylinder, and large volume of the hydraulic buffer.

Pending Publication Date: 2022-02-01
HANGZHOU HUNING ELEVATOR PARTS CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the switch contact rod needs to realize the above two functions, the switch contact rod needs to extend along the height direction of the hydraulic buffer to the top of the plunger, resulting in a large volume of the hydraulic buffer. At the same time, due to the large stroke during the buffering process, The switch contact rod needs to be guided to ensure that the safety switch is in a reliable state, and the structure is relatively complicated
If the setting of the switch contact rod is omitted, the plunger stroke cannot be limited, that is, it cannot prevent the plunger from being separated from the oil cylinder after reset, and it cannot ensure that the safety circuit is disconnected during the buffer action and the elevator safety circuit is closed when the reset is completed.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Elevator buffer
  • Elevator buffer
  • Elevator buffer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1-7 As shown, the elevator buffer of this embodiment includes an oil cylinder 1 , a plunger 2 , a reset mechanism and a safety switch 4 .

[0031] Specifically, the oil cylinder 1 of this embodiment is installed above the base 0; the plunger 2 is a hollow structure with an open bottom, and a bottom cover 5 is installed on the bottom open. The plunger 2 is plugged into the oil cylinder 1 so that the bottom cover 5 is located in the oil cylinder 1 . Among them, such as image 3 As shown, the inner wall of the plunger 2 has a first locking groove 2a, and the first locking groove 2a is an annular groove extending radially outward along the inner wall of the plunger; the outer wall of the bottom cover 5 has a second locking groove 5a, The second locking groove 5a is an annular groove extending radially inward along the outer wall of the bottom cover. The plunger 2 and the bottom cover 5 are fixedly connected by the second clip spring 6. The specific instal...

Embodiment 2

[0044] The difference between the elevator buffer of this embodiment and the first embodiment lies in that the structure of the reset mechanism is different.

[0045] Specifically, such as Figure 8 with 9 As shown, the reset mechanism of this embodiment includes a spring seat, return springs with unequal pitches, and a compression spring cover. The installation structure of the spring seat and the compression spring cover is the same as that of Embodiment 1, and a return spring with unequal pitches is used. 14 replaces the two return springs and brackets in Embodiment 1, which simplifies the structure of the return mechanism. Among them, the pitch of the bottom of the return spring with unequal pitch is smaller than the pitch of the top; the trigger is fixed at the bottom of the return spring with unequal pitch and is not located at the bottom coil, so that the safety switch can be triggered. And higher sensitivity. Realize the diversification of the structure of the eleva...

Embodiment 3

[0048] The difference between the elevator buffer of the present embodiment and the first embodiment is:

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of elevator accessories, and particularly relates to an elevator buffer. The elevator buffer comprises an oil cylinder, a plunger, a reset mechanism and a safety switch, a bottom cover is installed at the bottom of the plunger, the plunger is inserted into the oil cylinder so that the bottom cover can be located in the oil cylinder, a limiting groove is formed in the side wall of the bottom cover, and a first clamping spring is installed in the limiting groove; an anti-falling structure is arranged on the inner wall of the oil cylinder; when the plunger is reset to a target position under the action of the reset mechanism, the first clamping spring interacts with the anti-falling structure to limit the plunger to move in the reset direction; and the reset mechanism is further used for being in linkage with a trigger piece, and the trigger piece is used for triggering the safety switch. According to the elevator buffer, the limiting structure of the plunger stroke is internally designed between the oil cylinder and the bottom cover of the plunger, the safety switch can be triggered as long as the reset mechanism is in linkage with the triggering piece, the design of a switch feeler lever can be omitted, and miniaturization of the overall structure of the elevator buffer is facilitated.

Description

technical field [0001] The invention belongs to the technical field of elevator accessories, and in particular relates to an elevator buffer. Background technique [0002] The hydraulic elevator buffer relies on hydraulic throttling damping to buffer and decelerate the car acting on it to a stop, playing the role of buffer protection. [0003] For example, the publication number is that the patent document of CN210884794U discloses a kind of hydraulic shock absorber, comprises oil cylinder, plunger and adjusting rod; The cover plate is connected, and the bottom end is connected with the plunger bottom cover. The plunger bottom cover is located in the oil cylinder and moves up and down along the adjustment rod. It also includes an upper spring plate, a lower spring plate and a return spring; the upper spring plate is fixedly connected with the cover plate , the lower spring plate is fixedly connected with the outer wall of the oil cylinder; the upper and lower ends of the re...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B66B5/28B66B5/02
CPCB66B5/28B66B5/282B66B5/02
Inventor 邹家春姚荣康郎小东王伟丁明星
Owner HANGZHOU HUNING ELEVATOR PARTS CO LTD