CN201309784Y

CN201309784Y - Elevator buffer device

Info

Publication number: CN201309784Y
Application number: CNU200820162597XU
Authority: CN
Inventors: 张国华; 余国清
Original assignee: Xizi Otis Elevator Co Ltd
Current assignee: Xizi Otis Elevator Co Ltd
Priority date: 2008-08-11
Filing date: 2008-08-11
Publication date: 2009-09-16
Anticipated expiration: 2018-08-11

Abstract

The utility model relates to an elevator buffer device, comprising a buffer device fixed above the top plate of a piston, and a hydraulic drive system for driving the piston and the buffer device at the top of the piston to telescope up and down, wherein the hydraulic drive system comprises a lower oil chamber and a hydraulic control one-way valve I connected with the lower oil chamber, an upper oil camber and a hydraulic control one-way valve II connected with the upper oil chamber, an electromagnetic reversing valve, a hydraulic pump, an overflow valve, an oil tank and a piston; the piston is arranged between the upper and the lower oil chambers; the piston moves up and down in the oil chambers. The elevator buffer device has a structure for making the buffer device automatically telescope up and down, to automatically control the buffer device to stop at demanded height, thus being beneficial for maintenance in bottom cavity and the safety of maintenance personnel, reducing the depth of bottom cavity and reducing the height of top layer.

Description

Elevator buffer device

Technical field

The utility model relates to a kind of elevator buffer device, particularly a kind of fluid pressure type base unit that energy disperser is stretched up and down.

Background technology

According to national elevator standard: " elevator manufacturing with the safety standard standard is installed " (GB7588-2003) in the 5.7.3.3 bar to elevator pit and the standard code of top layer relevant technologies, need should consider to protect people and lift facility to determine to the requirement of pit depth.General device is when normal operation, and the people can not enter elevator pit and carry out operation, so can not consider the factor of protecting the people to enter this moment to the design calculation of the elevator pit degree of depth.Usually buffer of elevator is installed on the pedestal/bracing frame of fixing, and this pedestal/bracing frame and energy disperser are the structure of an immutable height.So when calculating pit depth and headroom height, the normal operation of elevator can not be made a distinction with inspecting state, thereby influence the degree of depth of pit and the height of top layer.

The time in today, also do not have a kind ofly can make the flexible up and down fluid pressure type base unit of energy disperser, promptly do not have a kind of telescopic shock absorber that can energy disperser raises or energy disperser descends when elevator cage normally moves when the pit inspection travel.

Chinese patent by retrieval, the patent of relevant buffer of elevator device aspect is a lot, but does not have a kind of design and structure that the utility model proposes that relate to.

Summary of the invention

The purpose of this utility model provides a kind of elevator buffer device, specifically is a kind ofly can make the flexible up and down elevator buffer device with fluid pressure type base unit of energy disperser.

Concrete technology contents of the present utility model is: a kind of elevator buffer device, and it comprises,

One energy disperser 12, described energy disperser fixed and arranged on piston 4 top boards,

One energy disperser 12 that can drive on piston 4 and the piston head is made flexible up and down fluid power system 5, described fluid power system comprises: lower oil cavitie 2 and one and lower oil cavitie 3 bonded assembly hydraulic control one-way valves (I) 6, upper oil cavitie 3 and one and upper oil cavitie 3 bonded assembly hydraulic control one-way valves (II) 11, solenoid directional control valve 10, Hydraulic Pump 7, by pass valve 9 and fuel tank 8, constitute with a piston 4

Described piston is arranged in the centre of

lower oil cavitie

3 and 2, and piston is up and down in oil pocket.

The utility model compared with prior art has following good effect:

1, the utility model makes the flexible up and down automatically structure of energy disperser owing to have one; product can not only move up and down automatically; can be parked in required height by the automatic guidance energy disperser again, the personnel of interests upkeep operation in pit are arranged, protect pit upkeep operation personnel's personal safety effectively.

2, this elevator buffer device has reduced the degree of depth of pit in the elevator hoistways owing to can stretch up and down.

3, this device has played the effect that reduces headroom height too.

In a word, the utility model provides a kind of creationary novel elevator energy disperser, has thoroughly solved the problem that prior art exists, and has filled up the blank of prior art, is the desirable elevator buffer devices of people, has application value.

Description of drawings

Fig. 1 looks scheme drawing for the master of the embodiment of the invention.

Identify among the figure: 1, cylinder body, 2, lower oil cavitie, 3, upper oil cavitie, 4, piston, 5, fluid power system, 6, hydraulic control one-way valve (I), 7, Hydraulic Pump, 8, fuel tank, 9, by pass valve, 10, solenoid directional control valve, 11, hydraulic control one-way valve (II), 12, energy disperser, 13, bolt.

The specific embodiment

Accompanying drawing 1 expression the utility model one most preferred embodiment structural representation.

Further describe the utility model detailed technology content and embodiment below in conjunction with accompanying drawing.But principle of design of the present utility model and design are not limited to the structure and the sign of present embodiment.

Biao Shi embodiment with reference to the accompanying drawings, the elevator buffer device that the utility model provides, it comprises,

One energy disperser 12, described energy disperser 12 be arranged in piston 4 top boards above,

One can drive piston 4 and be fixed on the fluid power system 5 that the energy disperser 12 on the piston head stretches up and down, described fluid power system comprises: lower oil cavitie 2 and one and lower oil cavitie bonded assembly hydraulic control one-way valve (I) 6, upper oil cavitie 3 and one and upper oil cavitie 3 bonded assembly hydraulic control one-way valves (II) 11, solenoid directional control valve 10, Hydraulic Pump 7, by pass valve 9 and fuel tank 8

Constitute with a piston 4, described piston is the centre that activity is arranged in

lower oil cavitie

3 and 2.

Described elevator buffer device, the top board on wherein said energy disperser 12 and the piston 4 is connected and fixed by bolt 13, and the quantity of described bolt 13 is at least two.

Hydraulic Pump 7 in the described fluid power system 5 starts, make solenoid directional control valve 10 be in position, a left side, hydraulic control one-way valve (II) 11 feeds pressure oil, hydraulic oil in the upper oil cavitie 3 oppositely flows in the fuel tank 8, and hydraulic oil flows in the lower oil cavitie 2 by hydraulic control one-way valve, when piston 4 upwards runs to the extreme higher position, described Hydraulic Pump 7 is out of service, solenoid directional control valve 10 is in meta, this moment, the control presssure of hydraulic control one-way valve (I) 6 and hydraulic control one-way valve (II) 11 disappeared, played the effect of check valve, upper oil cavitie 3, hydraulic oil in the lower oil cavitie 2 is sealed dead, and service personnel allows to enter pit and overhauls.

Described fluid power system 5 is after service personnel is walked out pit, Hydraulic Pump 7 starts, make solenoid directional control valve 10 be in right position, hydraulic control one-way valve (1) 6 feeds pressure oil, the hydraulic oil reverse direction flow oil sump tank 8 in the lower oil cavitie 2, and hydraulic oil flows into upper oil cavitie 3 by hydraulic control one-way valve (II) 11, piston 4 moves downward, when piston 4 ran to extreme lower position, Hydraulic Pump 7 was out of service, and solenoid directional control valve 10 is in meta.

Fluid power system in the foregoing description is not limited to fluid power system in the utility model, it can be the tooth rack-and-pinion, perhaps manual rocker-type or the like, and every energy disperser that can drive is done up and down the driver train of fore and aft motion and can be realized.

A kind of elevator buffer device that the utility model provides; only done detailed description with regard to illustrated embodiments; but can not be interpreted as the restriction of other modes that the utility model is implemented; everyly further improve and similar or identical scheme on the utility model basis, all being considered as is the scope that the utility model is asked for protection.

Claims

1, a kind of elevator buffer device is characterized in that: it comprises,

One energy disperser (12), described energy disperser (12) be arranged in piston (4) top board above,

One can drive piston (4) and be fixed on the fluid power system (5) that the energy disperser (12) on the piston head stretches up and down, described fluid power system comprises: lower oil cavitie (2) and one and lower oil cavitie bonded assembly hydraulic control one-way valve I (6), upper oil cavitie (3) and one and upper oil cavitie (3) bonded assembly hydraulic control one-way valve II (11), solenoid directional control valve (10), Hydraulic Pump (7), by pass valve (9) and fuel tank (8)

Constitute with a piston (4), described piston is arranged in the centre of lower oil cavitie (3), (2), and piston can be up and down in oil pocket.

2, elevator buffer device according to claim 1 is characterized in that: be connected and fixed by bolt (13) between described energy disperser (12) and piston (4) top board, the quantity of described bolt (13) is at least two.