CN215831026U - Pressure slow-drop check valve for vibration damper - Google Patents
Pressure slow-drop check valve for vibration damper Download PDFInfo
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- CN215831026U CN215831026U CN202122366069.4U CN202122366069U CN215831026U CN 215831026 U CN215831026 U CN 215831026U CN 202122366069 U CN202122366069 U CN 202122366069U CN 215831026 U CN215831026 U CN 215831026U
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Abstract
The utility model provides a pressure slow-falling check valve for shock absorber, which comprises a valve seat, case and compensating spring, case slidable mounting is in the disk seat, compensating spring is connected with disk seat and case respectively, take shape slowly and fall the oil circuit on the disk seat lateral wall, when the shock absorber is tensile, through the increase of the inside and outside pressure difference of working cylinder, thereby compensating spring receives the compression jack-up case, the compression valve system is opened, in time for the interior oil supply of working cylinder, when meetting upper chamber valve system trouble locking, the damping oil of cavity of resorption can slowly flow out along the slow-falling oil circuit of disk seat periphery under the low-speed, solve the problem that the product broke down the locking.
Description
Technical Field
The utility model belongs to the technical field of one-way valves, and particularly relates to a pressure slow-drop one-way valve for a vibration damper.
Background
A common shock absorber compression valving (shown in figure 1) consists essentially of: the compression valve rod, the adjusting gasket, the compression valve plate, the compression throttle valve plate, the compression valve seat, the compensation valve plate, the compensation spring and the nut are required to be riveted (punched and riveted) for looseness prevention after all the parts are assembled.
The compression valve of the shock absorber has multiple parts, a complex structure and multiple factors influencing the consistency of the damping force, and mainly comprises the rigidity of a valve plate and a spring, the consistency control of a powder piece compression valve seat, the size and the position of a hole and the flatness control of an oil surface line, the processing precision and the performance requirements of a compression valve rod and a nut, the stability of a system is directly influenced by the factors such as the control of the torsion and the riveting force when the nut is locked, and the like, so that the one-time qualified rate of the damping force is low; the requirement on the damping force of a compression valve of a shock absorber on a commercial vehicle seat or a solar shock absorber is high, and the compression valve of the shock absorber cannot meet the damping requirement; when the shock absorber meets the upper cavity valve system failure and can not release pressure in the compression process, the product is in a rigid locking state, and the shock absorber has no shock absorption effect.
Disclosure of Invention
In view of the above disadvantages, the technical problem to be solved by the present invention is to provide a pressure slow-drop check valve for a shock absorber, which prevents the valve system from locking and failing to work when the upper cavity valve system fails.
In order to solve the technical problems, the utility model adopts the technical scheme that,
a pressure slow-drop check valve for a shock absorber comprises a valve seat, a valve core and a compensation spring, wherein the valve core is slidably mounted in the valve seat, the compensation spring is respectively connected with the valve seat and the valve core, and a slow-drop oil way is formed on the side wall of the valve seat.
Furthermore, the slow descending oil way comprises an oil inlet hole, an oil outlet hole and a spiral groove, and the oil inlet hole and the oil outlet hole are respectively connected to two ends of the spiral groove.
Furthermore, an oil cylinder connecting groove is formed in the side wall of the valve seat, the slow descending oil way is formed in the oil cylinder connecting groove, and an oil outlet channel is formed between the spiral groove and the inner wall of the working cylinder.
Furthermore, the oil outlet is formed on the end face of the connecting groove of the oil cylinder, the axis of the oil outlet is coincided with the diameter of the valve core, the oil inlet is formed on the end face of the inner side of the valve core, and the oil inlet is perpendicular to the inner end face of the valve seat.
Further, a valve core stepped hole is formed in the valve seat and comprises a valve core guide section, a valve core locking section and a spring installation section, the valve core is slidably installed in the valve core locking section, and the end part of the compensating spring is matched with the valve core locking section.
Furthermore, an oil inlet groove is formed in the end face of the outer side of the valve core and communicated with the spring mounting section.
Furthermore, an oil supplementing groove is formed in the side wall of the oil inlet groove.
Furthermore, the valve core comprises a valve core shaft and a non-return section, the non-return section is fixedly connected to the valve core shaft, the valve core shaft is slidably mounted in the valve core locking section, and the end part of the compensating spring is fixedly connected with the valve core shaft.
Furthermore, a locking arc surface is formed on the lower end face of the non-return section, correspondingly, a locking surface is formed on the valve core locking section, and the locking surface is matched with the locking arc surface.
Furthermore, a spring fixing groove is formed on the valve core shaft, and the end part of the compensating spring is clamped with the spring fixing groove.
The one-way valve has the beneficial effects that (1) the one-way valve is simple in structure and convenient to assemble, the production cost of the compression valve of the shock absorber can be effectively reduced, and the enterprise benefit is improved.
(2) Through laying the oil circuit that slowly falls on the disk seat, avoid meeting the unable condition emergence of pressure release of upper chamber valve system trouble because the shock absorber in compression process.
Drawings
FIG. 1 is a schematic diagram of a compression valving arrangement for a shock absorber on the market.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic view of the structure of fig. 2 after being rotated by a certain angle.
Fig. 4 is a schematic half-section of the present invention.
Fig. 5 is a schematic view of the connection of the present valve body to the cylinder.
Reference numerals: the hydraulic control valve comprises a valve seat 1, a valve core 2, a compensating spring 3, a slow descending oil way 4, an oil inlet hole 5, an oil outlet hole 6, a spiral groove 7, an oil cylinder connecting groove 8, a valve core guiding section 9, a valve core locking section 10, a spring mounting section 11, an oil inlet groove 13, an oil supplementing groove 14, a valve core shaft 15, a non-return section 16, a locking cambered surface 17, a locking surface 18, a spring fixing groove 19 and a working cylinder 20;
the valve comprises a compression valve rod 1-1, an adjusting gasket 1-2, a compression valve plate 1-3, a compression throttle valve plate 1-4, a compression valve seat 1-5, a compensation valve plate 1-6, a compensation spring 1-7 and a nut 1-8.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The utility model provides a pressure slow-falling check valve for shock absorber, including disk seat 1, case 2 and compensating spring 3, case 2 slidable mounting is in disk seat 1, compensating spring 3 is connected with disk seat 1 and case 2 respectively, it has slow-falling oil circuit 4 to take shape on the 1 lateral wall of disk seat, when the shock absorber is tensile, through the increase of the inside and outside pressure difference of working cylinder, thereby compensating spring 3 is compressed jack-up case 2, the compression valve system is opened, in time for the interior oil supplementation of working cylinder, when meetting upper chamber valve system trouble locking, the damping oil of cavity of resorption can slowly flow out along the slow-falling oil circuit 4 of disk seat 1 periphery under the low-speed, solve the problem that the product broke down the locking.
The slow descending oil way 4 comprises an oil inlet hole 5, an oil outlet hole 6 and a spiral groove 7, the oil inlet hole 5 and the oil outlet hole 6 are respectively connected to two ends of the spiral groove 7, when a fault occurs, oil in the working cylinder 20 flows into the spiral groove 7 through the oil inlet hole 5 and is discharged out of the working cylinder 20 through the oil outlet hole 6, the valve seat 1 and the valve core 2 are prevented from being locked, and the stability of a valve system is improved.
An oil cylinder connecting groove 8 is formed in the side wall of the valve seat 1, the oil cylinder connecting groove 8 is used for fixedly mounting the working cylinder 20, the slow descending oil way 4 is formed in the oil cylinder connecting groove 8, an oil outlet channel is formed between the spiral groove 7 and the inner wall of the working cylinder 20, the processing difficulty of the slow descending oil way 4 is reduced, and the production efficiency of the valve seat 1 is improved.
The oil outlet 6 is formed in the end face of the oil cylinder connecting groove 8, the axis of the oil outlet 6 coincides with the diameter of the valve core 2, oil in the working cylinder 20 conveniently flows into the spiral groove 7 through the oil outlet 6, the oil inlet 5 is formed in the end face of the inner side of the valve seat 1, the oil inlet 5 is perpendicular to the end face of the inner end of the valve seat 1, the oil in the spiral groove 7 conveniently flows out through the oil outlet 6, and the processing difficulty of the oil inlet 5 and the oil outlet 6 in the valve seat 1 is reduced.
A valve core stepped hole is formed in the valve seat 1 and comprises a valve core guide section 9, a valve core locking section 10 and a spring installation section 11, the valve core 2 is slidably installed in the valve core locking section 10, the aperture of the valve core locking section 10 is larger than the shaft diameter of the valve core 2, oil liquid convenient to flow into the working cylinder 20 through the valve core locking section 10, and the end part of the compensating spring 3 is matched with the valve core locking section 10, so that the compensating spring 3 is conveniently positioned and installed.
An oil inlet groove 13 is formed on the end face of the outer side of the valve core 2, the oil inlet groove 13 is communicated with the spring mounting section 11, an oil supplementing groove 14 is formed on the side wall of the oil inlet groove 13, and when oil is supplemented into the working cylinder 20, oil flows into the oil inlet groove 13 through the oil supplementing groove 14 and then flows into the working cylinder 20 through the valve core locking section 10.
The valve core 2 comprises a valve core shaft 15 and a non-return section 16, the non-return section 16 is fixedly connected to the valve core shaft 15, the valve core shaft 15 is slidably mounted in the valve core locking section 10, the end part of the compensating spring 3 is fixedly connected with the valve core shaft 15, and the non-return section 16 is matched with the valve core locking section 10 to realize complete closing and sealing of the working cylinder 20.
A locking arc surface 17 is formed on the lower end surface of the non-return section 16, correspondingly, a locking surface 18 is formed on the valve core locking section 10, the locking surface 18 is matched with the locking arc surface 17, and the working cylinder 20 is completely closed and sealed by matching the locking arc surface 17 and the locking surface 18, so that the sealing performance is improved.
The valve core shaft 15 is formed with a spring fixing groove 19, the end of the compensating spring 3 is clamped with the spring fixing groove 19, and the compensating spring 3 is conveniently fixed by the arrangement of the spring fixing groove 19.
The end of the spool shaft 15 is tapered to facilitate positioning of the spool 2 when the spool 2 is closed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the terms corresponding to the reference numerals in the figures are used more herein, the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The pressure slow-drop check valve for the shock absorber is characterized by comprising a valve seat (1), a valve core (2) and a compensation spring (3), wherein the valve core (2) is slidably mounted in the valve seat (1), the compensation spring (3) is respectively connected with the valve seat (1) and the valve core (2), and a slow-drop oil way (4) is formed in the side wall of the valve seat (1).
2. The pressure slow-drop one-way valve for the shock absorber is characterized in that the slow-drop oil way (4) comprises an oil inlet hole (5), an oil outlet hole (6) and a spiral groove (7), and the oil inlet hole (5) and the oil outlet hole (6) are respectively connected to two ends of the spiral groove (7).
3. The pressure slow-drop check valve for the shock absorber as claimed in claim 2, wherein a cylinder connecting groove (8) is formed on the side wall of the valve seat (1), and the slow-drop oil passage (4) is formed in the cylinder connecting groove (8).
4. The pressure slow-drop check valve for the shock absorber as claimed in claim 3, wherein the oil outlet hole (6) is formed on the end face of the cylinder connecting groove (8), the axis of the oil outlet hole (6) coincides with the diameter of the valve core (2), the oil inlet hole (5) is formed on the end face of the inner side of the valve seat (1), and the oil inlet hole (5) is arranged perpendicular to the inner end face of the valve core (2).
5. The pressure slow-drop one-way valve for the shock absorber is characterized in that a valve core stepped hole is formed in the valve seat (1), the valve core stepped hole comprises a valve core guide section (9), a valve core locking section (10) and a spring installation section (11), the valve core (2) is slidably installed in the valve core locking section (10), and the end part of the compensating spring (3) is matched with the valve core locking section (10).
6. The pressure slow-drop check valve for the shock absorber as claimed in claim 5, wherein an oil inlet groove (13) is formed on the outer end face of the valve core (2), and the oil inlet groove (13) is communicated with the spring mounting section (11).
7. The pressure slow-drop check valve for the shock absorber as claimed in claim 6, wherein an oil replenishing groove (14) is formed on a side wall of the oil inlet groove (13).
8. The pressure slow-drop one-way valve for the shock absorber is characterized in that the valve core (2) comprises a valve core shaft (15) and a check section (16), the check section (16) is fixedly connected to the valve core shaft (15), the valve core shaft (15) is slidably installed in the valve core locking section (10), and the end part of the compensating spring (3) is fixedly connected with the valve core shaft (15).
9. The pressure slow-drop one-way valve for the shock absorber is characterized in that a locking arc surface (17) is formed on the lower end surface of the check section (16), correspondingly, a locking surface (18) is formed on the valve core locking section (10), and the locking surface (18) is matched with the locking arc surface (17).
10. The pressure slow-drop check valve for the shock absorber as claimed in claim 8, wherein the valve core shaft (15) is formed with a spring fixing groove (19), and the end of the compensating spring (3) is clamped with the spring fixing groove (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122366069.4U CN215831026U (en) | 2021-09-28 | 2021-09-28 | Pressure slow-drop check valve for vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122366069.4U CN215831026U (en) | 2021-09-28 | 2021-09-28 | Pressure slow-drop check valve for vibration damper |
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| Publication Number | Publication Date |
|---|---|
| CN215831026U true CN215831026U (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122366069.4U Active CN215831026U (en) | 2021-09-28 | 2021-09-28 | Pressure slow-drop check valve for vibration damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738807A (en) * | 2021-09-28 | 2021-12-03 | 浙江路得坦摩汽车部件股份有限公司 | Pressure slow-drop check valve for vibration damper |
-
2021
- 2021-09-28 CN CN202122366069.4U patent/CN215831026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738807A (en) * | 2021-09-28 | 2021-12-03 | 浙江路得坦摩汽车部件股份有限公司 | Pressure slow-drop check valve for vibration damper |
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