CN211648894U

CN211648894U - Bottom valve seat

Info

Publication number: CN211648894U
Application number: CN201922485511.8U
Authority: CN
Inventors: 蔡迎伟
Original assignee: Ningbo Shunda Powder Metallurgy Industry Co ltd
Current assignee: Ningbo Shunda Powder Metallurgy Industry Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-09
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a base valve seat relates to bumper shock absorber technical field, and its technical scheme main points include the disk seat body, the inboard of disk seat body is provided with a plurality of equal radians and is the interior damping of ring form range and crosses the oilhole, the outside of disk seat body is provided with a plurality of equal radians and is the outer damping of the cyclic annular range of semicircle and crosses the oilhole, and be provided with the fixed lug that is used for fixed base valve seat and bumper shock absorber on the disk seat body and be used for crossing the oily oil groove of crossing of oil, interior damping crosses the oilhole and outer damping and crosses the oilhole respectively with corresponding valve block cooperation, wherein two adjacent interior damping is crossed and is provided with interior waist groove and/or wherein two adjacent on the oilhole outer damping is crossed and is provided with outer supplementary waist groove on the oilhole. The utility model discloses an interior waist groove, outer main waist groove and outer damping cross the oilhole and the setting of the diameter ratio of interior damping cross the oilhole, when cooperating with corresponding valve block, reach and show the effect that reduces the bumper shock absorber damping value and adjust the degree of difficulty.

Description

Bottom valve seat

Technical Field

The utility model relates to a bumper shock absorber technical field, more specifically say that it relates to a base valve seat.

Background

The shock absorber is a part for inhibiting the shock generated when the spring rebounds after absorbing shock and the impact from the road surface, is widely applied to automobiles, and plays a role in accelerating the damping of the vibration of a frame and an automobile body, so that the driving smoothness of the automobile is improved. In automotive suspension systems, most of the shock absorbers used are hydraulic shock absorbers.

The hydraulic shock absorber has a cylinder filled with hydraulic oil, and a piston rod is inserted into the cylinder. The piston is provided with a throttling hole, so that oil in two parts of spaces separated by the piston can be supplemented with each other. The shock absorber is mainly carried out by that when the frame or the vehicle body and the axle are vibrated and relatively moved, the piston in the shock absorber moves up and down. Oil in the cavity of the shock absorber repeatedly flows into the other cavity from one cavity through different pores, and at the moment, the friction between the hole wall and the oil and the internal friction between oil molecules form damping force on vibration, so that the vibration energy of the automobile is converted into oil heat energy, and then the oil heat energy is absorbed by the shock absorber and dissipated into the atmosphere.

Chinese patent with publication number CN201621224U discloses an automobile shock absorber valve seat, which comprises an annular seat body, wherein one end of the seat body is an open end, the other end is provided with a base, a valve cavity is formed inside the seat body, axial convex parts are arranged on the end surface of the seat body at intervals of the open end, and a groove is formed between the adjacent convex parts. The base and the seat body are connected through the ribbed slab, and the ribbed slab has three at least, is fan-shaped respectively, evenly distributed between the outer wall of base and the inner wall of seat body.

However, when the automobile shock absorber valve seat is used, the problems that the damping value of the shock absorber is difficult to adjust and the fluid flow stability is poor exist, and improvement is needed.

Disclosure of Invention

Not enough to prior art exists, the utility model aims to provide a base valve seat, this base valve seat have and show the effect that reduces the bumper shock absorber damping value and adjust the degree of difficulty.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a bottom valve seat, includes the disk seat body, the inboard of disk seat body is provided with the interior damping of a plurality of equal radians and being the ring form range and crosses the oilhole, the outside of disk seat body is provided with the outer damping that a plurality of equal radians just are the ring form range and crosses the oilhole, and be provided with the fixed lug that is used for fixed bottom valve seat and bumper shock absorber on the disk seat body and be used for crossing the oil groove of oil, interior damping crosses the oilhole and outer damping and crosses the oilhole respectively with corresponding valve block cooperation, wherein two are adjacent be provided with interior waist groove and/or wherein two are adjacent on the oilhole is crossed to interior damping be provided with outer supplementary waist groove on the oilhole.

The utility model discloses further set up to: the diameter of the inner damping oil passing hole is smaller than that of the outer damping oil passing hole.

The utility model discloses further set up to: the diameter ratio of the diameter of the inner damping oil passing hole to the diameter of the outer damping oil passing hole is 1: (1.1-3.2).

The utility model discloses further set up to: the inner damping oil passing holes are four in number, and the inner waist grooves are two and symmetrical to each other.

The utility model discloses further set up to: the inner damping oil passing holes are six in number, and the inner waist grooves are three and distributed in equal radian.

The utility model discloses further set up to: the outer damping oil passing holes are four or seven, and outer auxiliary waist grooves are formed in two ends of the outer damping oil passing holes.

The utility model discloses further set up to: the number of the outer damping oil passing holes is seven, and the three outer damping oil passing holes in the middle are provided with outer main waist grooves.

The utility model discloses further set up to: and chamfers are arranged at the end parts of the outer damping oil passing hole and the inner damping oil passing hole.

To sum up, the utility model discloses following beneficial effect has:

1. the inner waist groove is arranged and matched with the corresponding valve plate, so that the effect of remarkably reducing the adjusting difficulty of the damping value of the shock absorber is achieved, and the fluid flow stability of the valve seat body is improved;

2. the outer auxiliary waist groove is matched with the corresponding valve plate, so that the effect of remarkably reducing the damping value adjusting difficulty of the shock absorber is achieved, and the fluid flow stability of the valve seat body is improved;

3. the outer main waist groove is arranged and matched with the corresponding valve plate, so that the effect of remarkably reducing the adjusting difficulty of the damping value of the shock absorber is achieved, and the fluid flow stability of the valve seat body is improved;

4. by setting the diameter ratio of the outer damping oil passing hole and the inner damping oil passing hole, when corresponding valve plates are matched, the effect of remarkably reducing the damping value adjusting difficulty of the shock absorber is achieved, and the fluid flow stability of the valve seat body is improved;

5. the fluid flow stability of the valve seat body is improved through the chamfer angle arrangement of the end parts of the outer damping oil passing hole and the inner damping oil passing hole.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Description of reference numerals: 1. an oil passing groove; 2. fixing the bump; 3. an outer damping oil passing hole; 31. an outer main waist groove; 32. an outer auxiliary waist groove; 4. the inner damping oil passing hole; 41. an inner waist groove; 5. an inner tank; 6. and the shaft hole.

Detailed Description

In order to make the technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings.

Example one

As shown in FIG. 1, a base valve seat includes a valve seat body. A plurality of inner damping oil passing holes 4 which are arranged in a circular ring shape and have the same radian are arranged on the inner side of the valve seat body; a plurality of outer damping oil passing holes 3 which are arranged in a semicircular ring shape and have the same radian are formed in the outer side of the valve seat body; and a fixing lug 2 for fixing the bottom valve seat and the shock absorber and an oil passing groove 1 for passing oil are arranged on the valve seat body. The inner damping oil passing hole 4 and the outer damping oil passing hole 3 are respectively matched with corresponding valve plates so as to achieve the purpose of adjusting the oil passing amount of the inner damping oil passing hole 4 and the outer damping oil passing hole 3 on the valve seat body and further adjusting the damping value of the shock absorber.

As shown in fig. 1 and 2, six inner damping oil passing holes 4 are provided, and three inner waist grooves 41 are provided and distributed in an equal arc. The number of the outer damping oil passing holes 3 is seven, and the two outer damping oil passing holes 3 respectively positioned at the two ends are provided with outer auxiliary waist grooves 32. Meanwhile, the three outer damping oil passing holes 3 positioned in the middle are provided with outer main waist grooves 31. The purpose of adjusting the oil passing amount of the inner damping oil passing hole 4 and the outer damping oil passing hole 3 on the valve seat body is achieved when the inner waist groove 41, the outer auxiliary waist groove 32 and the outer main waist groove 31 are matched with corresponding valve plates, the difficulty of adjusting the damping value of the shock absorber is obviously reduced, and the fluid flow stability of the valve seat body is improved.

It should be mentioned that the end parts of the outer damping oil passing hole 3 and the inner damping oil passing hole 4 are provided with chamfers. And the diameter of the inner damping oil passing hole 4 is smaller than that of the outer damping oil passing hole 3. In order to improve the fluid flow stability of the valve seat body, the diameter ratio of the inner damping oil passing hole 4 to the outer damping oil passing hole 3 is set to be 1: 1.1.

example two

The difference between the second embodiment and the first embodiment is that the number of the inner damping oil passing holes 4 in the second embodiment is four, and the number of the inner waist grooves 41 is two and symmetrical to each other.

EXAMPLE III

The difference between the third embodiment and the first embodiment is that four outer damping oil passing holes 3 are provided, and the two outer damping oil passing holes 3 respectively located at two ends are provided with outer auxiliary waist grooves 32. Meanwhile, the outer main waist groove 31 is not provided in the third embodiment.

Example four

The fourth embodiment is different from the first embodiment in that the outer auxiliary waist groove 32 is not provided in the fourth embodiment.

EXAMPLE five

The fifth embodiment is different from the first embodiment in that the inner waist groove 41 is not provided in the fifth embodiment.

EXAMPLE six

The sixth embodiment is different from the first embodiment in that the diameter ratio of the inner damping oil passing hole 4 to the outer damping oil passing hole 3 in the sixth embodiment is set to be 1: 2.2.

EXAMPLE seven

The seventh embodiment is different from the first embodiment in that the diameter ratio of the inner damping oil passing hole 4 to the outer damping oil passing hole 3 in the seventh embodiment is set to be 1: 3.2.

the above is only the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiments, but all the cases belong to the technical solution of the present invention under the thought all belong to the protection scope of the present invention. It should be noted that modifications and decorations, which would occur to those skilled in the art without departing from the principle of the present invention, should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a bottom valve seat, includes the disk seat body, the inboard of disk seat body is provided with the interior damping of a plurality of equal radians and being the ring form range and crosses oilhole (4), the outside of disk seat body is provided with a plurality of equal radians and is the outer damping of the cyclic annular range of semicircle and crosses oilhole (3), and be provided with on the disk seat body and be used for fixed disk seat body and bumper shock absorber fixed lug (2) and be used for crossing oily groove (1), interior damping crosses oilhole (4) and outer damping and crosses oilhole (3) and cooperates its characterized in that with corresponding valve block respectively: wherein, two adjacent inner damping oil passing holes (4) are provided with inner waist grooves (41) and/or two adjacent outer damping oil passing holes (3) are provided with outer waist auxiliary grooves (32).

2. A base valve seat according to claim 1, wherein: the diameter of the inner damping oil passing hole (4) is smaller than that of the outer damping oil passing hole (3).

3. A base valve seat according to claim 2, wherein: the diameter ratio of the diameter of the inner damping oil passing hole (4) to the diameter of the outer damping oil passing hole (3) is 1: (1.1-3.2).

4. A base valve seat according to claim 1, wherein: the number of the inner damping oil passing holes (4) is four, and the number of the inner waist grooves (41) is two and the two inner waist grooves are symmetrical to each other.

5. A base valve seat according to claim 1, wherein: the six inner damping oil passing holes (4) are formed, and the three inner waist grooves (41) are distributed in an equal radian mode.

6. A base valve seat according to claim 1, wherein: the number of the outer damping oil passing holes (3) is four or seven, and outer auxiliary waist grooves (32) are arranged at two ends of the outer damping oil passing holes (3).

7. A base valve seat according to claim 6, wherein: the number of the outer damping oil passing holes (3) is seven, and outer main waist grooves (31) are arranged on the three outer damping oil passing holes (3) in the middle.

8. A base valve seat according to any one of claims 1 to 7 wherein: and chamfers are arranged at the end parts of the outer damping oil passing hole (3) and the inner damping oil passing hole (4).