CN205618586U

CN205618586U - Vibration damper

Info

Publication number: CN205618586U
Application number: CN201620073685.7U
Authority: CN
Inventors: 陶伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-27
Filing date: 2016-01-27
Publication date: 2016-10-05
Anticipated expiration: 2026-01-27

Abstract

The utility model discloses a vibration damper, including bottom plate, bearing plate and buffer, buffer including the fixed cylinder that sets up on the bottom plate, relatively the piston rod that reciprocates of cylinder, overcoat in the interior buffer spring of piston rod, be located cylinder and the fixed spring plate who sets up on the piston rod and set up the baffle in cylinder and internally buffer spring formation support, when elevator car fell fast, through bearing plate and car bottom contact, the bearing plate moved down internal buffer spring and forms the compression, realizes the buffering realizing the descending ride comfort of elevator car through interior buffer spring's compressing deformation.

Description

A kind of shock absorber

Technical field

The utility model relates to elevator safety system, particularly to a kind of shock absorber.

Background technology

In order to minimum is down in personnel's injury when stall or car clash into pit when making lift car descending, national Specification elevator must configure the descending safety tongs of car and car buffer.Currently known elevator buffer device is pit buffer, it is arranged in elevator pit, it mostly is bumper, including one in the spring being vertically arranged, the top of spring arranges bearing plate, the bottom of spring is fixedly installed on the bottom of elevator hoistways, is reached the effect making car slowly slow down by the reaction force to car for the spring.This kind of buffer of elevator only has first-level buffer effect, easily damages when elevator impulse force is excessive, produces security incident, and simple employing spring buffer structure, when express elevator uses, can produce and feel at the bottom of obvious rigid touch.

Therefore, need to improve existing elevator buffer structure, not only structural strength is high, service life is long, and there is multistage mixing buffering effect, it is greatly improved the resiliency falling car at a high speed, and realize the ride comfort of downstream buffer, improve riding comfort, prevent the generation of security incident.

Utility model content

In view of this, the utility model provides a kind of shock absorber, and not only structural strength is high, service life is long, and has multistage mixing buffering effect, is greatly improved the resiliency falling car at a high speed, and realize the ride comfort of downstream buffer, improve riding comfort, prevent the generation of security incident.

Shock absorber of the present utility model, including base plate, bearing plate and buffer unit, buffer unit include the cylinder barrel being fixedly installed on base plate, can cylinder barrel moves up and down relatively piston rod, be coated at the interior buffer spring of piston rod, be positioned at cylinder barrel and be fixedly installed spring bearer plate on the piston rod and be arranged on cylinder barrel and internal buffer spring forms the dividing plate supporting, piston-rod lower end passes through described spring bearer plate and forms guide end, and described cylinder barrel is separated into epicoele and the cavity of resorption being used for piston-rod lower end active reservations space for spring activity by dividing plate.

Further, also include that overcoat cylinder barrel arranges and jointly acts on the outer spring Buffer Unit carrying out buffer shock-absorbing with buffer unit, outer spring Buffer Unit includes the first spring, the second spring and spring positioning sleeve, spring positioning sleeve is coated at cylinder barrel and can slide up and down, first spring and the second spring are respectively in spring positioning sleeving shaft to both sides, first spring and described second spring are volute spring and are all oppositely arranged in the way of little head end supports and terminates in positioning sleeve, the first little head end of spring supports and terminates in bearing plate downside, and the second little head end of spring supports and terminates in follow block upper side.

Further, base plate being formed with cylinder barrel positioning seat, cylinder barrel positioning seat is loop configuration, and cylinder barrel lower ending opening is simultaneously coated at cylinder barrel positioning seat and is connected by securing member.

The beneficial effects of the utility model: shock absorber of the present utility model, when lift car hurtles down, being contacted with cage bottom by bearing plate, bearing plate moves down internal buffer spring and forms compression, realize buffering by the compression of interior buffer spring, it is achieved the descending ride comfort of lift car.

Brief description

With embodiment, the utility model is further described below in conjunction with the accompanying drawings.

Fig. 1 is the utility model structural representation.

Detailed description of the invention

Fig. 1 is the utility model structural representation, as shown in the figure: the shock absorber of the present embodiment, including base plate 1, bearing plate 2 and buffer unit, buffer unit includes the cylinder barrel 3 being fixedly installed on base plate 1, can cylinder barrel 3 moves up and down relatively piston rod 4, it is coated at the interior buffer spring 5 of piston rod 4, it is positioned at cylinder barrel 3 spring bearer plate 14 being fixedly installed on piston rod 4 and be arranged on cylinder barrel 3 dividing plate 6 of internal buffer spring 5 formation support, piston rod 4 lower end passes through described spring bearer plate and forms guide end, described cylinder barrel 3 is separated into epicoele 7 and the cavity of resorption 8 being used for active reservations space, piston rod 4 lower end for spring activity by dividing plate 6.

In the present embodiment, also include that overcoat cylinder barrel 3 arranges and jointly acts on the outer spring Buffer Unit carrying out buffer shock-absorbing with buffer unit, outer spring Buffer Unit includes the first spring 9, second spring 10 and spring positioning sleeve 11, spring positioning sleeve 11 is coated at cylinder barrel 3 and can slide up and down, first spring 9 and the second spring 10 are respectively in spring positioning sleeving shaft to both sides, first spring 9 and described second spring 10 are volute spring and are all oppositely arranged in the way of little head end supports and terminates in positioning sleeve, the first little head end of spring 9 supports and terminates in bearing plate 2 downside, the second little head end of spring 10 supports and terminates in follow block upper side；When by load, spring positioning sleeve 11 moves therewith, and the structure of two springs, ratio of height to diameter is little, it is difficult to that bending and friction abnormal sound occur, wherein, the axial both sides of spring positioning sleeve 11 are respectively provided with spring locating slot, and the lower end of the first spring 9 and the upper end of the second spring 10 fall within corresponding spring locating slot respectively；Restore in addition, spring buffer assembly can be additionally used in damping unit after car rising；In addition, volute spring is nonlinear spring, will not compress completely, resistance to shock is good, and antivibration is mild.

In the present embodiment, base plate 1 being formed with cylinder barrel positioning seat 12, cylinder barrel positioning seat is loop configuration, and cylinder barrel 3 lower ending opening is simultaneously coated at cylinder barrel 3 positioning seat and is connected by securing member 13；Easy to connect, good positioning effect, wherein, securing member is trip bolt or fastening bolt.

Finally illustrate is, above example is only in order to illustrate the technical solution of the utility model and unrestricted, although the utility model being described in detail with reference to preferred embodiment, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent, without deviating from objective and the scope of technical solutions of the utility model, it all should be covered in the middle of right of the present utility model.

Claims

1. a shock absorber, it is characterized in that: include base plate, bearing plate and buffer unit, described buffer unit includes the cylinder barrel being fixedly installed on base plate, can cylinder barrel moves up and down relatively piston rod, it is coated at the interior buffer spring of piston rod, it is positioned at cylinder barrel and be fixedly installed spring bearer plate on the piston rod and be arranged on cylinder barrel the dividing plate of internal buffer spring formation support, described piston-rod lower end passes through described spring bearer plate and forms guide end, described cylinder barrel is separated into epicoele and the cavity of resorption being used for piston-rod lower end active reservations space for spring activity by described dividing plate.

2. shock absorber according to claim 1, it is characterized in that: also include that overcoat cylinder barrel arranges and jointly acts on the outer spring Buffer Unit carrying out buffer shock-absorbing with buffer unit, described outer spring Buffer Unit includes the first spring, second spring and spring positioning sleeve, described spring positioning sleeve is coated at described cylinder barrel and can slide up and down, described first spring and described second spring are respectively in spring positioning sleeving shaft to both sides, described first spring and described second spring are volute spring and are all oppositely arranged in the way of little head end supports and terminates in positioning sleeve, the described first little head end of spring supports and terminates in bearing plate downside, the described second little head end of spring supports and terminates in follow block upper side.

3. shock absorber according to claim 2, it is characterised in that: being formed with cylinder barrel positioning seat on described base plate, described cylinder barrel positioning seat is loop configuration, and described cylinder barrel lower ending opening is simultaneously coated at cylinder barrel positioning seat and is connected by securing member.