CN206190794U

CN206190794U - Damper

Info

Publication number: CN206190794U
Application number: CN201621265606.9U
Authority: CN
Inventors: 姚武
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-24
Filing date: 2016-11-24
Publication date: 2017-05-24
Anticipated expiration: 2026-11-24

Abstract

The utility model relates to a damper technical field, a damper, include: the check valve and with the pivot that the check valve cup jointed, check valve and pivot all set up in the batch oil tank, the sealed face of check valve with the fitting surface of pivot is mutually supported, sealed face with be provided with 7 differential seat angle between the fitting surface. The utility model discloses it needs one -way damped occasion at rotary part to have when rotatory, the parts that make rotatory work are changed into at the uniform velocity by original free fall formula closure when closed bearing gravity, thereby slowly closed improves impact fracture and the impulsive noise that free closure was brought.

Description

A kind of damper

Technical field

The utility model is related to damper technique field, specifically refers to the damper that a kind of band delays drop function.

Background technology

Damper, is to provide the resistance of motion, the device of depletion kinergety.In space flight, aviation, military project, firearms, vapour Various dampers are applied in the industries such as car already（Or damper）Carry out vibration damping energy dissipating.

Damper is a component, just has different damping actions using in different places or different operating environment.It is existing Having the damper application in technology has：Spring-damper, hydraulic damper, pulse damper, rotary damper, wind damper, Viscous damper, damp hinge, Damping sliding rail, Furniture fittings, cabinet hardware etc..

It is essentially all that rotary part is needed when rotated in the application that Furniture fittings, cabinet hardware etc. need damper Want unidirectional damping.Damper in this application, is usually internally formed sealing container in damper, is matched somebody with somebody by rotating shaft and check valve Damping oil is divided into several independent closed regions after conjunction.When rotary part starts single direction rotation, rotating shaft counterclockwise movement, this When check valve oil pressure dampened by clamping shaft rib, form closing.In the presence of the pressure regulation groove of check valve side, it is pressurized Damping oil can push sliding block toward axis outwardly direction and be adjacent to oil storage chamber interior wall, damping oil can not then flow through from sliding block.This When, several independent closed regions of damping oil are confined area or oil back region.

Extruded damping oil is flowed in the gap of nut and rotating shaft by the endoporus groove of fuel reserve tank, then clearance flow between passing through To oil return region.Therefore, as long as controlling oil return speed by adjusting the size in oil return gap, so as to control in certain moment of torsion The rotating speed of lower rotary shaft is the time that rotary part falls slowly.Gap is small, then the damping oil for passing through in the unit interval is just few；Slowly fall the time It is long.Gap is big, then the damping oil for passing through in the unit interval is just more.In the case where damping oil capacity is equal, then the time that falls slowly is short.

But, such prior art requirement rotating shaft, check valve, fuel reserve tank realize that interference fit can just make confined area or oil return Area's formation completely cuts off sealing to completely cut off damping oil well, so that Expected Results is played in the closing of check valve.Interference fit meeting Cause the increase that rubs between each part of damper, rotary course is influenceed by frictional force and not smooth enough, have showing of trembling As while frictional force can increase damper moment of torsion in reset state, making to be exerted oneself during hand-reset bigger than normal to influence what is used to relax Adaptive.Damper fluid when in running order inside damper bears great pressure, makes the sealing ring of rotatory sealing long-term Bear immense pressure, easily appearance is worn and torn during long-term use and causing damper fluid to be revealed causes the risk of product failure.

Therefore, existing such damper technique has the defect being difficult to avoid that in using effect, while on service life It is not enough.Need a kind of more stable and service life damper higher.

Utility model content

The purpose of this utility model is the defect and deficiency for prior art, there is provided one kind is applied and existed in rotary part The occasion of unidirectional damping, the damper during members close of rotary work at the uniform velocity, slow, Jing Yin are needed during rotation；The damper Working stability, smooth, long service life.

To achieve the above object, the technical solution adopted in the utility model is：A kind of damper, including：Check valve and The rotating shaft being socketed with the check valve, the check valve and rotating shaft may be contained within fuel reserve tank, the sealing surface of the check valve and The mating surface of the rotating shaft is cooperated, and 7 ° of differential seat angle is provided between the sealing surface and the mating surface.

Further, it is provided with the sealing surface of the check valve with the check valve axially into 7 ° of the strong point.

Further, also it is circumferentially provided with cushion space in the rotating shaft.

After said structure, the utility model has the beneficial effect that：Unidirectional damping is needed when rotated in rotary part Occasion, makes the part of rotary work bear to be changed at the uniform velocity by original free fall type closure when gravity is closed, and slowly closes Close so as to improve impact failure and the impact noise that free zonula occludens comes.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is front view of the present utility model；

Fig. 3 is the sectional view of B-B sections shown in Fig. 2；

Fig. 4 is the local enlarged drawings of A shown in Fig. 3.

Description of reference numerals：

10th, fuel reserve tank；11st, fuel reserve tank inner cylinder face；20th, the first nut；30th, pad；40th, check valve；41st, sealing surface； 42nd, the strong point；43rd, external cylindrical surface；50th, rotating shaft；51st, mating surface；52nd, cushion space；70th, the second nut；80th, " O " type sealing Circle.

Specific embodiment

The utility model is further described below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 2 and Figure 3, a kind of damper described in the utility model, including：The of closure damper one end One nut 20 and pad 30；Check valve 40 and the rotating shaft 50 being socketed with the check valve 40, the check valve 40 and rotating shaft 50 May be contained within fuel reserve tank 10；Block the second nut 70 of the damper other end.

Cooperated on the sealing surface 41 of the check valve 40 and the mating surface 51 of rotating shaft 50, the sealing surface 41 and described 7 ° of differential seat angle is provided between mating surface 51；Have in 7 ° of angles along the axially arranged of the check valve 40 on the sealing surface 41 The strong point 42；Make the check valve 40 by static（Original state）To operative orientation（Stress）Can be along the strong point during rotation 42 axial-rotations for making 7 °；So that the inner cylinder face 11 that the external cylindrical surface 43 of check valve 40 can more closely be adjacent to fuel reserve tank 10 reaches To optimal sealing.

A kind of damper of the present utility model, is provided with a cushion space in the circumference of rotating shaft 40 in hydraulic packing passage 52, make the pressure of fluid when " O " type sealing ring 80 is reached by the buffer-type relief passage of " narrow-wide-narrow ", so that reaching The pressure of " O " type sealing ring 80 weakens, therefore bears pressure and strengthen sealing effectiveness to reduce " O " type sealing ring 80, significantly Improve service life.

The above is only better embodiment of the present utility model, therefore all according to described in the utility model patent claim Construction, the equivalent change or modification done of feature and principle, be included in the utility model patent claim.

Claims

1. a kind of damper, including：Check valve and the rotating shaft being socketed with the check valve, the check valve and rotating shaft are all provided with It is placed in fuel reserve tank, it is characterised in that：The sealing surface of the check valve and the mating surface of the rotating shaft cooperate, the sealing 7 ° of differential seat angle is provided between face and the mating surface.

2. a kind of damper according to claim 1, it is characterised in that：It is provided with the sealing surface of the check valve and institute Check valve is stated axially into 7 ° of the strong point.

3. a kind of damper according to claim 1, it is characterised in that：It is also axially arranged in the rotating shaft to have buffering empty Between.