CN213628651U - Valve device with adjustable compression damping - Google Patents
Valve device with adjustable compression damping Download PDFInfo
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- CN213628651U CN213628651U CN202022421759.0U CN202022421759U CN213628651U CN 213628651 U CN213628651 U CN 213628651U CN 202022421759 U CN202022421759 U CN 202022421759U CN 213628651 U CN213628651 U CN 213628651U
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Abstract
The utility model relates to a valve device with adjustable compression damping, which comprises a valve seat, a valve sleeve, a valve body, a valve rod, a low-pressure valve pin, a high-pressure valve pin and a slide valve component, wherein the circumferential array of the side wall of the valve sleeve is provided with a plurality of flow guide holes; a shock absorber group for resisting vehicle roll comprises two shock absorbers, wherein each shock absorber comprises an oil storage cylinder, a working cylinder, an intermediate cylinder and a valve device. An object of the utility model is to solve or alleviate traditional compression valve at least and rely on electrical system and sensor, the problem that product cost is high, system reliability is low provides a compression damping adjustable valve gear.
Description
Technical Field
The utility model relates to a shock absorber technical field especially relates to a compression damping adjustable valve gear.
Background
The compression valve system of the double-cylinder hydraulic shock absorber commonly seen in the market at present is generally composed of a compensating valve and a compression valve, when the shock absorber is in a compression stroke, oil can only flow out through a flow valve and the compression valve to generate damping force, the structure, the manufacturing process and the assembly process of the compression valve are simple and become the mainstream of the current hydraulic shock absorber valve system, but the defects are obvious, the unicity of an oil passage also determines that the compression damping force value of the structure can not be adjusted after the shock absorber is assembled, and therefore the comfort and the controllability of a vehicle can not be considered.
The shock absorber with adjustable compression damping in the market at present is mainly an active or semi-active electronic control shock absorber, for example, a plurality of electromagnetic valve shock absorbers and magneto-rheological shock absorbers are applied, however, the adjustment of the compression damping force of the semi-active or active shock absorber depends on an electronic control system and a sensor, so that the product cost is greatly improved on one hand, and the system reliability is reduced on the other hand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, solve or alleviate traditional compression valve at least and rely on electrical system and sensor, problem that product cost is high, system reliability is low provides a compression damping adjustable valve gear.
The utility model discloses a realize through following technical scheme: a valve device with adjustable compression damping comprises a valve seat, a valve sleeve, a valve body, a valve rod, a low-pressure valve pin, a high-pressure valve pin and a slide valve assembly, wherein the valve sleeve is in a circular tube shape, the valve body and the valve seat are respectively positioned at the upper end and the lower end of the valve sleeve, and the valve rod which is used for fastening the valve seat, the valve sleeve and the valve body into a whole penetrates through the valve body from top to bottom and is sleeved on the valve seat in a threaded manner;
the valve body is provided with a low-pressure valve hole and a high-pressure valve hole, and the outer wall of the valve body is connected with the inner wall of the valve sleeve in a sealing manner;
the valve seat is characterized in that a boss is arranged at the upper part of the valve seat, the boss is sleeved in the valve sleeve and is longitudinally provided with a first counter bore, the upper surface of the boss is attached to the lower surface of the valve body in a sealing manner, a second counter bore is arranged at the lower part of the valve seat in the radial direction and is correspondingly arranged below the first counter bore, the outer wall of the lower part of the valve seat is connected with the inner wall of the valve sleeve in a sealing manner, the space formed in the first counter bore is a low-pressure valve cavity, the space between the boss and the valve sleeve is a high-pressure valve cavity, the space formed in the second counter bore is a sliding valve cavity, the sliding valve cavity is communicated to the low;
the valve sleeve is characterized in that a plurality of flow guide holes are formed in the circumferential array of the side wall of the valve sleeve, the lower ends of the flow guide holes are communicated to the high-pressure valve cavity, and the upper ends of the flow guide holes are communicated to the outer side of the upper end of the valve sleeve;
the low-pressure valve pin and the high-pressure valve pin are axially arranged on the upper part of the valve seat in a sliding manner through springs, the low-pressure valve pin and the high-pressure valve pin are respectively positioned in the low-pressure valve cavity and the high-pressure valve cavity, the upper part of the low-pressure valve pin and the upper part of the high-pressure valve pin are respectively arranged in the low-pressure valve hole and the high-pressure valve hole in a sealing and sliding manner, and the upper part of the low-;
the sliding valve assembly is positioned in the sliding valve cavity and used for controlling the opening and closing of the low-pressure communication hole.
In order to further realize the utility model discloses, can prefer following technical scheme for use:
preferably, the valve rod is further sleeved with a limiter, a gasket and a compensation valve plate, the limiter, the gasket and the compensation valve plate are sequentially stacked above the valve body from top to bottom, the valve body is provided with a plurality of compensation holes, and the compensation holes are located below the compensation valve plate.
Preferably, a positioning mechanism is arranged between the valve body and the valve seat and comprises an upper positioning counter bore, a lower positioning counter bore and a positioning pin, the upper positioning counter bore and the lower positioning counter bore are respectively located on the lower side of the valve body and the upper side of the boss, the upper portion of the positioning pin is located in the upper positioning counter bore, and the lower portion of the positioning pin is located in the lower positioning counter bore.
Preferably, the drainage hole at the upper part of the low-pressure valve pin or the high-pressure valve pin comprises a vertical section and a horizontal section, the upper end of the vertical section is communicated to the upper end surface of the low-pressure valve pin or the high-pressure valve pin, the lower end of the vertical section is communicated to the inner end of the horizontal section, and the outer end of the horizontal section is communicated to the side wall of the low-pressure valve pin or the.
Preferably, the slide valve assembly comprises a slide valve sleeve and a slide valve core, the slide valve sleeve is fixedly arranged in the slide valve cavity, the outer side of the circumference of the slide valve sleeve is in a step shape, the higher end of the outer side of the slide valve sleeve is fixedly connected with the slide valve cavity in a sealing manner, the lower end of the outer side of the slide valve sleeve is correspondingly arranged at the communication position of the low-pressure communication hole and the slide valve cavity and is radially provided with a through hole, the slide valve core is arranged in the slide valve sleeve in a sliding manner, and a spring is arranged between the end, facing.
The utility model provides a shock absorber group that anti vehicle heeled, includes two shock absorbers, the shock absorber includes oil storage cylinder, working cylinder, middle jar and valve gear, oil storage cylinder inner wall and valve barrel outer wall sealing connection, the working cylinder lower extreme supports to valve barrel and working cylinder outer wall and valve barrel inner wall sealing connection, the coaxial cover of middle jar is in working cylinder and middle jar lower terminal surface sealing laminating to valve barrel up end, guiding hole upper end is located between middle jar and the oil storage cylinder.
Preferably, the valve sleeve is circumferentially arrayed with a plurality of interaction holes, the upper ends of the interaction holes are communicated to the upper end face of the valve sleeve and are positioned between the working cylinder and the middle cylinder, and the lower ends of the interaction holes are communicated to the outer side of the side wall of the valve sleeve.
Preferably, the lower end of the interaction hole of the valve sleeve and the outer end of the spool chamber of the valve device of one of the shock absorbers are respectively communicated with the outer end of the spool chamber of the valve device of the other shock absorber and the lower end of the interaction hole of the valve sleeve.
Through the technical scheme, the beneficial effects of the utility model are that:
compared with the traditional shock absorber, the utility model discloses compression valve fluid circulation passageway has low-pressure valve passageway and high-pressure valve passageway during compression stroke, and when the shock absorber low-speed operation, its low-pressure valve passageway is opened, and the high-pressure valve passageway is closed, nevertheless receives the impact when the wheel, and when the shock absorber high-speed operation, the high-pressure valve also opened, also can reduce high-speed damping force when protecting the shock absorber, reduces the impact to automobile body and passenger, improves whole car travelling comfort.
Compared with the traditional shock absorber, the utility model discloses the circulation of accessible slide valve control low pressure intercommunicating pore, and then adjust compression damping force, through the slip of control slide valve core and then control low pressure intercommunicating pore circulation, change compression damping force, the power supply of control slide valve core can be central control oil pump.
Adopt the utility model discloses a valve gear's shock absorber can be interconnect two, and the hole of fluid accessible working cylinder epicoele gets into middle cylinder during shock absorber tensile stroke, then flows to the smooth valve pocket of another shock absorber through mutual hole, and then controls opening and shutting of low pressure intercommunicating pore, reaches the effect with the tensile compression damping force that increases another shock absorber of this shock absorber, and then improves the anti ability of heeling of vehicle, can cancel the stabilizer bar, reduce cost and whole car weight.
The utility model discloses can be in the direct self-adaptation regulation that realizes compression damping force through three oil pipe of passive suspension, need not control through automatically controlled suspension, consequently will be superior to current solenoid valve shock absorber, magneto rheological shock absorber etc. in the price.
Drawings
FIG. 1 is a cross-sectional view of the valve assembly of the present invention;
fig. 2 is an exploded view of the structure of the valve device of the present invention;
fig. 3 is a structural sectional view of the valve housing of the present invention;
fig. 4 is a schematic structural view of the valve body of the present invention;
fig. 5 is a schematic structural view of the valve seat of the present invention;
FIG. 6 is a cross-sectional view of the valve seat of the present invention;
fig. 7 is a second structural sectional view of the valve seat of the present invention;
FIG. 8 is a cross-sectional view of the low pressure valve pin of the present invention;
FIG. 9 is a cross-sectional view of the high pressure valve pin of the present invention;
fig. 10 is a schematic view of a slide valve assembly according to the present invention;
fig. 11 is a schematic structural view of the damper of the present invention;
wherein: 1-a valve seat; 2-valve housing; 3-a valve body; 4-a valve stem; 5-a low pressure valve pin; 6-a high pressure valve pin; 7-a boss; 8-a slide valve sleeve; 9-spool; 10-a stopper; 11-a gasket; 12-a compensation valve plate; 13-a locating pin; 14-oil storage cylinder; 15-a working cylinder; 16-intermediate cylinder; 17-a low pressure valve bore; 18-a high pressure valve bore; 19-a low pressure valve cavity; 20-high pressure valve cavity; 21-a sliding valve cavity; 22-low pressure communication hole; 23-high pressure communicating hole; 24-diversion holes; 25-drainage holes; 26-compensation holes; 27-alternating holes.
Detailed Description
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 11, a valve device with adjustable compression damping comprises a valve seat 1, a valve sleeve 2, a valve body 3, a valve rod 4, a low-pressure valve pin 5, a high-pressure valve pin 6 and a slide valve assembly, wherein the valve sleeve 2 is in a circular tube shape, the valve body 3 and the valve seat 1 are respectively positioned at the upper end and the lower end of the valve sleeve 2, and the valve rod 4 for fastening the valve seat 1, the valve sleeve 2 and the valve body 3 into a whole penetrates through the valve body 3 from top to bottom and is sleeved on the valve seat 1;
the valve body 3 is provided with a low-pressure valve hole 17 and a high-pressure valve hole 18, and the outer wall of the valve body 3 is hermetically connected with the inner wall of the valve sleeve 2;
the upper part of the valve seat 1 is provided with a boss 7, the boss 7 is sleeved in the valve sleeve 2 and is longitudinally provided with a first counter bore, the upper surface of the boss 7 is hermetically attached to the lower surface of the valve body 3, the lower part of the valve seat 1 is radially provided with a second counter bore, the second counter bore is correspondingly arranged below the first counter bore, the outer wall of the lower part of the valve seat 1 is hermetically connected with the inner wall of the valve sleeve 2, the space formed in the first counter bore is a low-pressure valve cavity 19, the space between the boss 7 and the valve sleeve 2 is a high-pressure valve cavity 20, the space formed in the second counter bore is a sliding valve cavity 21, the sliding valve cavity 21 is communicated to the low-pressure valve cavity 19 and the high-pressure valve;
a plurality of diversion holes 24 are formed in the circumferential array of the side wall of the valve sleeve 2, the lower ends of the diversion holes 24 are communicated to the high-pressure valve cavity 20, and the upper ends of the diversion holes are communicated to the outer side of the upper end of the valve sleeve 2;
the low-pressure valve pin 5 and the high-pressure valve pin 6 are axially arranged on the upper part of the valve seat 1 in a sliding manner through springs, the low-pressure valve pin 5 and the high-pressure valve pin 6 are respectively positioned in the low-pressure valve cavity 19 and the high-pressure valve cavity 20, the upper part of the low-pressure valve pin 5 and the upper part of the high-pressure valve pin 6 are respectively arranged in the low-pressure valve hole 17 and the high-pressure valve hole 18 in a sealing and sliding manner, and the upper parts of the low-pressure valve;
the slide valve assembly is located in the slide valve cavity 21 and used for controlling opening and closing of the low-pressure communication hole 22, the slide valve assembly comprises a slide valve sleeve 8 and a slide valve core 9, the slide valve sleeve 8 is fixedly arranged in the slide valve cavity 21, the outer side of the circumference of the slide valve sleeve 8 is in a step shape, the higher end of the outer side of the slide valve sleeve 8 is fixedly connected with the slide valve cavity 21 in a sealing mode, the lower end of the outer side of the slide valve sleeve 8 is correspondingly arranged at the communication position of the low-pressure communication hole 22 and the slide valve cavity 21 and is provided with a through hole in the radial direction, the slide valve core 9 is arranged in the slide valve sleeve 8 in a sliding.
In order to optimize the product structure, in this embodiment, the valve rod 4 is further sleeved with a stopper 10, a gasket 11 and a compensation valve plate 12, the stopper 10, the gasket 11 and the compensation valve plate 12 are sequentially stacked above the valve body 3 from top to bottom, the valve body 3 is provided with a plurality of compensation holes 26, and the compensation holes 26 are located below the compensation valve plate 12.
In order to prevent the valve body 3 from rotating relative to the valve seat 1, a positioning mechanism is arranged between the valve body 3 and the valve seat 1, the positioning mechanism comprises an upper positioning counter bore, a lower positioning counter bore and a positioning pin 13, the upper positioning counter bore and the lower positioning counter bore are respectively positioned on the lower side of the valve body 3 and the upper side of the boss 7, the upper part of the positioning pin 13 is positioned in the upper positioning counter bore, and the lower part of the positioning pin is positioned in the lower positioning.
In order to ensure that when the low-pressure valve pin 5 or the high-pressure valve pin 6 is pressed down, oil liquid above the valve body 3 can flow into the low-pressure valve cavity 19 or the high-pressure valve cavity 20, the drainage hole 25 at the upper part of the low-pressure valve pin 5 or the high-pressure valve pin 6 comprises a vertical section and a horizontal section, the upper end of the vertical section is communicated to the upper end surface of the low-pressure valve pin 5 or the high-pressure valve pin 6, the lower end of the vertical section is communicated to the inner end of the horizontal section.
A shock absorber group for resisting vehicle side inclination comprises two shock absorbers, wherein each shock absorber comprises an oil storage cylinder 14, a working cylinder 15, an intermediate cylinder 16 and a valve device, the inner wall of each oil storage cylinder 14 is in sealing connection with the outer wall of a valve sleeve 2, the lower end of each working cylinder 15 abuts against the valve sleeve 2, the outer wall of each working cylinder 15 is in sealing connection with the inner wall of the valve sleeve 2, the intermediate cylinder 16 is coaxially sleeved on the working cylinders 15, the lower end face of each intermediate cylinder 16 is in sealing fit with the upper end face of the valve sleeve 2, and the upper ends of guide holes 24 are located between the intermediate cylinders.
The valve sleeve 2 is circumferentially arrayed with a plurality of interaction holes 27, the upper end of each interaction hole 27 is communicated with the upper end face of the valve sleeve 2 and is positioned between the working cylinder 15 and the middle cylinder 16, the lower end of each interaction hole 27 is communicated with the outer side of the side wall of the valve sleeve 2, and the lower end of the interaction hole 27 of the valve sleeve 2 and the outer end of the sliding valve cavity 21 of one valve device of one shock absorber are respectively communicated with the outer end of the sliding valve cavity 21 of the other shock absorber and the lower end of the.
The working process is as follows:
when the shock absorber is in a compression stroke, the first passage: the pressure of the lower cavity of the working cylinder 15 is increased to push the low-pressure valve pin 5 to descend, oil enters the low-pressure valve cavity 19 through the drainage hole 25 at the upper end of the low-pressure valve pin 5, then flows into the sliding valve cavity 21 through the low-pressure connecting through hole 22, flows into the high-pressure valve cavity 20 through the high-pressure connecting through hole 23, and further flows into the oil storage cylinder 14 through the flow guide hole 24; and a second channel: when the pressure of the lower cavity of the working cylinder 15 reaches a certain degree, the high-pressure valve pin 6 descends, and oil enters the high-pressure valve cavity 20 through the drainage hole 25 at the upper end of the high-pressure valve pin 6 and then flows into the oil storage cylinder 14 through the drainage hole 24.
When oil enters the outer end of the spool cavity 21, the oil pushes the spool 9 to move inwards, meanwhile, the outer side of the spool 9 gradually slides through holes in the outer side of the spool sleeve 8, the flow rate of the low-pressure communication holes 22 is changed, the compression damping force is adjusted, when the through holes in the outer side of the spool sleeve 8 are completely blocked, the low-pressure communication holes 22 are closed, the oil can only flow out through the high-pressure communication holes 23, and the compression damping force is increased rapidly.
When the shock absorber is in a stretching stroke, a negative pressure is formed in the cavity of the working cylinder 15, oil in the oil storage cylinder 14 flows into the high-pressure valve cavity 20 through the diversion hole 24, the compensation valve plate 12 is opened through the compensation hole 26 in the valve body 3 and flows into the lower cavity of the working cylinder 15, meanwhile, the oil in the upper cavity of the working cylinder 15 flows into the middle cylinder 16 through the side wall hole in the upper cavity of the working cylinder 15 and flows into the outer end of the sliding valve cavity 21 of the other shock absorber through the interaction hole 27, the compression damping force of the other shock absorber is increased through the stretching stroke of the shock absorber, and the anti-roll capability of.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.
Claims (5)
1. The valve device with the adjustable compression damping is characterized by comprising a valve seat (1), a valve sleeve (2), a valve body (3), a valve rod (4), a low-pressure valve pin (5), a high-pressure valve pin (6) and a slide valve assembly, wherein the valve sleeve (2) is in a circular tube shape, the valve body (3) and the valve seat (1) are respectively positioned at the upper end and the lower end of the valve sleeve (2), and the valve rod (4) which is used for fastening the valve seat (1), the valve sleeve (2) and the valve body (3) into a whole penetrates through the valve body (3) from top to bottom and is sleeved on the valve seat (1) in a threaded manner;
the valve body (3) is provided with a low-pressure valve hole (17) and a high-pressure valve hole (18), and the outer wall of the valve body (3) is connected with the inner wall of the valve sleeve (2) in a sealing manner;
a boss (7) is arranged at the upper part of the valve seat (1), the boss (7) is sleeved in the valve sleeve (2) and is longitudinally provided with a first counter bore, the upper surface of the boss (7) is hermetically attached to the lower surface of the valve body (3), a second counter bore is radially arranged at the lower part of the valve seat (1), the second counter bore is correspondingly arranged below the first counter bore, the outer wall of the lower part of the valve seat (1) is connected with the inner wall of the valve sleeve (2) in a sealing way, the space formed in the first counter bore is a low-pressure valve cavity (19), the space between the boss (7) and the valve sleeve (2) is a high-pressure valve cavity (20), the space formed in the second counter bore is a sliding valve cavity (21), the sliding valve cavity (21) is communicated to a low-pressure valve cavity (19) and a high-pressure valve cavity (20) through a low-pressure communication hole (22) and a high-pressure communication hole (23), the inner end of the sliding valve cavity (21) is closed, and the outer end of the sliding valve cavity is communicated to the outside of the valve sleeve (2);
the side wall of the valve sleeve (2) is circumferentially arrayed with a plurality of flow guide holes (24), the lower ends of the flow guide holes (24) are communicated to the high-pressure valve cavity (20), and the upper ends of the flow guide holes are communicated to the outer side of the upper end of the valve sleeve (2);
the low-pressure valve pin (5) and the high-pressure valve pin (6) are axially arranged on the upper portion of the valve seat (1) in a sliding mode through springs, the low-pressure valve pin (5) and the high-pressure valve pin (6) are respectively located in the low-pressure valve cavity (19) and the high-pressure valve cavity (20), the upper portion of the low-pressure valve pin (5) and the upper portion of the high-pressure valve pin (6) are respectively arranged in the low-pressure valve hole (17) and the high-pressure valve hole (18) in a sealing sliding mode, and drainage holes (25) are formed in the upper portion of the low-pressure valve;
the slide valve assembly is positioned in a slide valve cavity (21) and is used for controlling the opening and closing of a low-pressure communication hole (22).
2. The valve device with the adjustable compression damping as claimed in claim 1, characterized in that the valve rod (4) is further sleeved with a stopper (10), a gasket (11) and a compensation valve plate (12), the stopper (10), the gasket (11) and the compensation valve plate (12) are sequentially stacked and arranged above the valve body (3) from top to bottom, the valve body (3) is provided with a plurality of compensation holes (26), and the compensation holes (26) are located below the compensation valve plate (12).
3. The valve device with the adjustable compression damping as claimed in claim 1, characterized in that a positioning mechanism is arranged between the valve body (3) and the valve seat (1), the positioning mechanism comprises an upper positioning counter bore, a lower positioning counter bore and a positioning pin (13), the upper positioning counter bore and the lower positioning counter bore are respectively located on the lower side of the valve body (3) and the upper side of the boss (7), the upper portion of the positioning pin (13) is located in the upper positioning counter bore, and the lower portion of the positioning pin (13) is located in the lower positioning counter bore.
4. The valve device with adjustable compression damping as claimed in claim 1, wherein the drainage hole (25) at the upper part of the low pressure valve pin (5) or the high pressure valve pin (6) comprises a vertical section and a horizontal section, the upper end of the vertical section is communicated to the upper end surface of the low pressure valve pin (5) or the high pressure valve pin (6), the lower end of the vertical section is communicated to the inner end of the horizontal section, and the outer end of the horizontal section is communicated to the side wall of the low pressure valve pin (5) or the high pressure valve pin (6).
5. The valve device with the adjustable compression damping as claimed in claim 1, wherein the slide valve assembly comprises a slide valve sleeve (8) and a slide valve core (9), the slide valve sleeve (8) is fixedly arranged in the slide valve cavity (21), the outer side of the circumference of the slide valve sleeve (8) is stepped, the higher end of the outer side of the slide valve sleeve (8) is fixedly connected with the slide valve cavity (21) in a sealing manner, the lower end of the outer side of the slide valve sleeve (8) is correspondingly arranged at the communication position of the low-pressure communication hole (22) and the slide valve cavity (21) and is radially provided with a through hole, the slide valve core (9) is arranged in the slide valve sleeve (8) in a sliding manner, and a spring is arranged between the end of the slide valve core (9) facing the inner end of the slide valve cavity (21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022421759.0U CN213628651U (en) | 2020-10-27 | 2020-10-27 | Valve device with adjustable compression damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022421759.0U CN213628651U (en) | 2020-10-27 | 2020-10-27 | Valve device with adjustable compression damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213628651U true CN213628651U (en) | 2021-07-06 |
Family
ID=76626161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022421759.0U Active CN213628651U (en) | 2020-10-27 | 2020-10-27 | Valve device with adjustable compression damping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213628651U (en) |
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2020
- 2020-10-27 CN CN202022421759.0U patent/CN213628651U/en active Active
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Effective date of registration: 20221213 Address after: 474450 xipingtou Industrial Park, Xichuan County, Nanyang City, Henan Province Patentee after: NANYANG CIJAN AUTO SHOCK ABSORBER Co.,Ltd. Patentee after: Shanghai Xijian automobile suspension Co.,Ltd. Patentee after: NANYANG WEIAO SITU VEHICLE SHOCK ABSORBER Co.,Ltd. Address before: Room 2201, 888 Moyu South Road, Anting Town, Jiading District, Shanghai Patentee before: Shanghai Xijian automobile suspension Co.,Ltd. |