CN213479038U

CN213479038U - Piston with umbrella-shaped supporting valve line

Info

Publication number: CN213479038U
Application number: CN202022335398.8U
Authority: CN
Inventors: 邬赛尧
Original assignee: Ningbo Junma New Material Technology Co ltd
Current assignee: Ningbo Junma New Material Technology Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-18
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a piston with umbrella-type support formula valve line, including piston body (1), piston body (1) center is equipped with through-hole (2), be equipped with on the terminal surface of piston body (1) and encircle inner valve line (3) and outer valve line (4) that through-hole (2) set up, its characterized in that: and a supporting valve wire (5) is further arranged between the inner valve wire (3) and the outer valve wire (4), and the supporting valve wires (5) are distributed in an umbrella shape along the radial direction of the piston and are a plurality of. The utility model provides a can improve the holding power to the valve block, avoid the valve line to produce deformation, improve the life's of piston with umbrella-type support formula valve line.

Description

Piston with umbrella-shaped supporting valve line

Technical Field

The utility model relates to a vehicle bumper shock absorber technical field, in particular to piston with umbrella-type supports formula valve line.

Background

When the automobile passes through the uneven road surface, although the shock absorption spring in the shock absorption system can filter the shock of the road surface, the spring can still do reciprocating motion, and the shock absorber is used for inhibiting the spring from jumping back and forth. The structure of the shock absorber is that a piston rod with a piston is inserted into a cylinder, and the cylinder is filled with oil. The piston is provided with a throttling hole, so that the oil in the two parts of space separated by the piston can be supplemented with each other. The working principle of the shock absorber is that when the frame and the axle or the vehicle body and the axle are vibrated to move relatively, 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 the vibration, so that the vibration energy of the vehicle is converted into oil heat energy, and then the oil heat energy is absorbed by the shock absorber and dissipated into the atmosphere.

The valve line on the piston of prior art is the annular, and the cooperation valve block realizes opening and closing of oil liquid exit on the piston, and when the oil pressure was too big in the bumper shock absorber, the annular valve line provided the supporting role of valve block limited, and the valve block is sunken or is bloated in the region in the middle of two annular valve lines easily, produces deformation, finally leads to the effect of valve block to become invalid, influences the life of piston.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: the piston with the umbrella-shaped support type valve line can improve the support force for the valve plate, avoid the valve line from deforming and prolong the service life of the piston.

The utility model provides a technical scheme that above-mentioned problem adopted does: the piston with the umbrella-shaped supporting type valve line comprises a piston body, wherein a through hole is formed in the center of the piston body, an inner valve line and an outer valve line which are arranged around the through hole are arranged on the end face of the piston body, a supporting valve line is further arranged between the inner valve line and the outer valve line, and the supporting valve lines are a plurality of and are distributed like an umbrella along the radial direction of the piston.

Compared with the prior art, the technical scheme has the advantages that: the valve block supports with the terminal surface of piston and supports, and the piston provides the support of main part through outer valve line and interior valve line, and sets up a plurality of support valve line between outer valve line and interior valve line, supports the valve block, has improved the holding power to the valve block, and supports the clearance between the valve line and can supply fluid to pass through, does not influence the flow of fluid, avoids the valve block to produce deformation under the high-pressure condition, has improved the life of piston.

Preferably, the inner valve line is annular and is arranged around the through hole, the piston body is circumferentially provided with a plurality of damping holes, the outer valve line comprises a first valve line, a second valve line and a connecting valve line, the first valve line is arranged on the outer side of the damping holes, the second valve line is arranged on the inner side of the damping holes, the first valve line and the second valve line are alternately arranged, the connecting valve line is connected with the adjacent first valve line and the second valve line, the supporting valve line comprises a third valve line and a fourth valve line, the third valve line is arranged corresponding to the first valve line, the fourth valve line is arranged corresponding to the second valve line, and the length of the third valve line is greater than that of the fourth valve line.

Preferably, the included angle between adjacent support valve lines is 18 °.

Preferably, the outer side of the support valve line is a circular arc surface.

Preferably, the end surface of the support valve line is provided with round corners around the circumference.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

1. A piston body; 2. a through hole; 3. an inner valve line; 4. an outer valve line; 4.1, a first valve line; 4.2, a second valve line; 4.3, connecting a valve line; 5. supporting the valve line; 5.1, a third valve line; 5.2, a fourth valve line; 5.3, round corners; 6. a damping hole.

Detailed Description

As shown in fig. 1, a piston with an umbrella-shaped supporting valve line comprises a piston body 1, a through hole 2 is arranged in the center of the piston body 1, an inner valve line 3 and an outer valve line 4 which are arranged around the through hole 2 are arranged on the end surface of the piston body 1, a supporting valve line 5 is further arranged between the inner valve line 3 and the outer valve line 4, and the supporting valve lines 5 are a plurality of and are distributed in an umbrella shape along the radial direction of the piston.

The inner valve line 3 is annular and is arranged around the through hole 2, the piston body 1 is circumferentially provided with a plurality of damping holes 6, the outer valve line 4 comprises a first valve line 4.1, a second valve line 4.2 and a connecting valve line 4.3, the first valve line 4.1 is arranged on the outer side of the damping holes 6, the second valve line 4.2 is arranged on the inner side of the damping holes 6, the first valve line 4.1 and the second valve line 4.2 are alternately arranged, the connecting valve line 4.3 is connected with the adjacent first valve line 4.1 and the second valve line 4.2, the supporting valve line 5 comprises a third valve line 5.1 and a fourth valve line 5.2, the third valve line 5.1 is arranged corresponding to the first valve line 4.1, the fourth valve line 5.2 is arranged corresponding to the second valve line 4.2, and the length of the third valve line 5.1 is greater than that of the fourth valve line 5.2.

First valve line 4.1, second valve line 4.2 and connecting valve line 4.3 set up and can divide into oil feed hole group and oil outlet hole group with orifice 6, because first valve line 4.1 sets up in the outside of orifice 6 and keeps away from through-hole 2, the event is greater than the length of the fourth valve line 5.2 that corresponds second valve line 4.2 setting corresponding the length of the third valve line 5.1 that first valve line 4.1 set up, thereby guarantee to support the holding power of valve line 5 to the valve block, avoid the valve block to produce deformation between the outside of first valve line 4.1 and orifice 6.

Wherein, the included angle alpha between adjacent support valve lines 5 is 18 degrees, the included angle is 18 degrees, 20 support valve lines 5 can be arranged, and the support stability is improved.

Wherein, the outside of support valve line 5 is the arc surface, and the arc surface can lead fluid to pass through, avoids causing the jam to the flow of fluid.

Wherein, the terminal surface of supporting valve line 5 encircles and is equipped with fillet 5.3, and fillet 5.3 can cushion the fluid that gets into between supporting valve line 5 and the valve block.

The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to be changed. All changes which come within the scope of the independent claims of the invention are to be embraced within their scope.

Claims

1. The utility model provides a piston with umbrella-type supports formula valve line, includes piston body (1), piston body (1) center is equipped with through-hole (2), be equipped with on the terminal surface of piston body (1) around inner valve line (3) and outer valve line (4) that through-hole (2) set up, its characterized in that: and a supporting valve wire (5) is further arranged between the inner valve wire (3) and the outer valve wire (4), and the supporting valve wires (5) are distributed in an umbrella shape along the radial direction of the piston and are a plurality of.

2. The piston having an umbrella supported valve line of claim 1, wherein: the inner valve line (3) is annular and is arranged around the through hole (2), the piston body (1) is provided with a plurality of damping holes (6) along the circumferential direction, the outer valve line (4) comprises a first valve line (4.1), a second valve line (4.2) and a connecting valve line (4.3), the first valve line (4.1) is arranged outside the orifice (6), the second valve line (4.2) is arranged inside the orifice (6), and the first valve line (4.1) and the second valve line (4.2) are alternately arranged, the connecting valve line (4.3) connects the adjacent first valve line (4.1) and second valve line (4.2), the supporting valve line (5) comprises a third valve line (5.1) and a fourth valve line (5.2), the third valve line (5.1) is arranged corresponding to the first valve line (4.1), the fourth valve line (5.2) is arranged corresponding to the second valve line (4.2), the length of the third valve line (5.1) is greater than the length of the fourth valve line (5.2).

3. The piston having an umbrella supported valve line of claim 1, wherein: the included angle between the adjacent supporting valve lines (5) is 18 degrees.

4. The piston having an umbrella supported valve line of claim 1, wherein: the outer side of the supporting valve line (5) is an arc surface.

5. The piston having an umbrella supported valve line of claim 1, wherein: and the end surface of the supporting valve line (5) is provided with a round angle (5.3) in a surrounding way.