CN210889892U - FCD valve system structure - Google Patents
FCD valve system structure Download PDFInfo
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- CN210889892U CN210889892U CN201921151267.5U CN201921151267U CN210889892U CN 210889892 U CN210889892 U CN 210889892U CN 201921151267 U CN201921151267 U CN 201921151267U CN 210889892 U CN210889892 U CN 210889892U
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Abstract
The utility model discloses a FCD valve system structure, including interior disk seat and valve barrel, interior disk seat is protruding type cross-section cavity tubular structure, the valve barrel is one end open-ended bottle lid column structure, and the valve barrel open end is connected with interior disk seat and is formed the cavity, set gradually in the cavity and go up valve system and lower valve system subassembly, it separates into independent last cavity and lower cavity with the cavity to go up the valve system, it is provided with at least one through-hole to lie in cavity part down on the valve barrel, and when the shock absorber at FCD valve place was in the reconversion stroke, the cavity was gone up in the working solution entering, made the valve system produce elastic deformation through liquid thrust, made cavity intercommunication from top to bottom. The design solves the problem that the damping force of the FCD valve is not adjusted along with the frequency, and the FCD valve can change according to the predicted damping force adjusting frequency band under the action of different frequencies, so that the purpose of frequency selection is achieved.
Description
Technical Field
The utility model belongs to the technical field of the FCD valve system.
Background
In the design and manufacture of automobiles nowadays, a suspension system of the automobile is an important component of the automobile, the suspension system of the automobile plays a decisive role in the smoothness, comfort, safety, steering operability and trafficability of the automobile, and a shock absorber is an important component of the suspension system of the automobile.
The traditional double-cylinder hydraulic shock absorber has the advantages of mature technology, simple structure, low cost and the like, and forms damping force opposite to the relative movement speed direction of a vehicle body by throttling and depressurizing oil inside the shock absorber, thereby achieving the shock absorbing effect and improving the driving smoothness and comfort of the vehicle. However, the conventional shock absorber valve system is connected by threads or rivets, and after the shock absorber is installed in a shock absorber and sealed, the structure of the shock absorber valve system is uniquely determined and cannot be changed, so that the damping force cannot be changed according to the conditions of the vehicle speed and the vibration frequency, and therefore, a valve system capable of adjusting the self damping force under different vibration frequencies is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: provided is an FCD valve system structure, which can realize the purpose of adjusting self damping force under different vibration frequencies.
The utility model adopts the technical scheme as follows:
an FCD valve system structure comprises an inner valve seat and a valve sleeve, wherein the inner valve seat is of a hollow cylindrical structure with a convex section, the valve sleeve is of a bottle cap-shaped structure with an opening at one end, the opening end of the valve sleeve is connected with the inner valve seat to form a cavity, an upper valve system and a lower valve system assembly are sequentially arranged in the cavity, the upper valve system and the lower valve system assembly are respectively arranged on the valve sleeve through a fixing piece, the upper valve system and the lower valve system assembly are respectively sleeved on the fixing piece, the upper valve system can axially slide along the fixing piece, the cavity is divided into an upper cavity and a lower cavity which are independent by the upper valve system, at least one through hole is formed in the lower cavity part of the valve sleeve, when a shock absorber with an FCD valve is in a recovery stroke, working fluid enters the upper cavity, and when the working frequency of the shock absorber is between the minimum working frequency and the maximum working frequency of the FCD valve, the, the working fluid can enter the lower cavity and flow out of the through hole; when the working frequency of the shock absorber is greater than the maximum action frequency of the FCD valve, the lower valve system component generates elastic deformation by the thrust of the working fluid, the upper valve system moves towards the lower valve system component along the fixing piece while elastically deforming, and the working fluid enters the lower cavity and flows out of the through hole.
Furthermore, the lower valve system component comprises a lower valve system and a support frame arranged between the upper valve system and the lower valve system, the support frame is of a sleeve structure with an opening at one end, the opening end face of the support frame is connected with the end face of the lower valve system close to the outer edge in a matched mode, and the other end face of the support frame is connected with the upper valve system.
Furthermore, the lower valve system component comprises a lower valve system and a support frame arranged between the lower valve system and the valve sleeve, the support frame is of a sleeve structure with an opening at one end, the opening end face of the support frame is connected with the end face of the lower valve system close to the outer edge in a matched mode, and the other end face of the support frame is connected with the valve sleeve.
Furthermore, the lower valve system is composed of more than one elastic valve plate, the elastic valve plates are sequentially stacked, and the diameter of the elastic valve plate close to the support frame is larger than that of the elastic valve plate at the other end.
Furthermore, the upper valve system is composed of more than one elastic valve plate, the elastic valve plates are sequentially stacked, and the diameter of the elastic valve plate close to the inner valve seat is larger than that of the elastic valve plate close to the lower valve system component.
Furthermore, the fixing part is a bolt arranged on the valve sleeve, the upper valve system assembly and the lower valve system assembly are fixedly connected in the valve sleeve through the bolt, gaskets are respectively arranged among the upper valve system assembly, the lower valve system assembly and the valve sleeve, and the diameter of each gasket is smaller than that of each elastic valve plate.
Furthermore, an annular boss is arranged at the bottom of the inner valve seat, and the outer end face of the annular boss is in sealing contact connection with the end face of the upper valve system at the position close to the outer edge of the upper valve system.
Further, interior disk seat includes interior disk seat body and link, and interior disk seat body is one end for sealing, the other end is open-ended cavity structure, and interior disk seat body blind end is provided with the connector, the link sets up the connector department on the interior disk seat body, is provided with the mounting hole that feeds through to interior disk seat cavity on the link.
Furthermore, the valve sleeve is in threaded connection with the inner valve seat, and an annular limiting boss is arranged on the inner wall of the valve sleeve.
Furthermore, the bottom of the valve sleeve is provided with more than one positioning hole matched with the screwing tool.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. in the utility model, when the shock absorber with the FCD valve is in the restoration stroke, the working fluid enters the upper cavity, and when the working frequency of the shock absorber is between the minimum action frequency and the maximum action frequency of the FCD valve, the thrust of the working fluid causes the upper valve system to generate elastic deformation, and the working fluid can enter the lower cavity and flow out from the through hole; when the working frequency of the shock absorber is greater than the maximum action frequency of the FCD valve, the lower valve system component generates elastic deformation by the thrust of the working fluid, the upper valve system moves towards the lower valve system along the fixing piece while elastically deforming, and the working fluid enters the lower cavity and flows out of the through hole. The magnitude of the damping force can be adjusted according to the change of the frequency of the shock absorber.
2. The design of the upper valve system and the lower valve system can enlarge the frequency selection range, so that the damping force can be adjusted more smoothly, and the comfort of automobile vibration reduction is improved. The valve system is composed of a plurality of elastic valve plates, and the combination sequence and the number of the valve plates can be adjusted according to the actual shock absorption requirement of the vehicle, so that the purpose of accurately selecting the frequency is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the second embodiment of the present invention.
The labels in the figure are: 1-inner valve seat, 2-valve sleeve, 3-upper valve system, 4-lower valve system component, 41-lower valve system, 42-support frame, 5-upper cavity, 6-lower cavity, 7-through hole, 8-elastic valve plate, 9-bolt, 10-gasket, 11-positioning hole, 12-annular boss, 13, limiting boss and 14-mounting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
Example one
The utility model provides a FCD valve system structure that preferred embodiment provided, including interior disk seat 1 and valve barrel 2, interior disk seat 1 is protruding type cross-section cavity tubular structure, valve barrel 2 is one end open-ended bottle lid column structure, and the valve barrel open end is connected with interior disk seat 1 and is formed the cavity, set gradually upper valve system 3 and lower valve system subassembly 4 in the cavity, upper valve system 3 and lower valve system subassembly 4 set up on valve barrel 2 through a mounting respectively, and upper valve system 3 and lower valve system subassembly 4 overlap respectively on the mounting, and upper valve system 3 can follow the mounting axial slip, upper valve system 3 separates the cavity into independent upper chamber 5 and lower chamber 6, the last cavity 6 part that lies in of valve barrel 2 is provided with at least one through-hole 7, and when the shock absorber that the FCD valve was located is in the rebound stroke, rebound valve system rebound on the shock absorber upwards removes, and the rebound valve system upper cylinder body oil hydraulic pressure rises, working fluid enters the upper cavity 5 of the FCD valve through the circulation hole, when the working frequency of the shock absorber is between the minimum action frequency and the maximum action frequency of the FCD valve, the thrust of the working fluid enables the upper valve system 3 to generate elastic deformation, the working fluid can enter the lower cavity 6 and flow out of the through hole 7, the function of the working fluid is equivalent to increasing the circulation area of the restoration valve system, the upper cylinder of the restoration valve system is quickly decompressed, and the restoration stroke damping force is reduced; when the working frequency of the shock absorber is greater than the maximum action frequency of the FCD valve, the lower valve system assembly 4 generates elastic deformation by the thrust of working liquid, the upper valve system 3 moves towards the lower valve system assembly 4 along the fixing piece while elastically deforming, so that the flow gap between the upper valve system 3 and the inner valve seat 1 is larger, the working liquid can enter the lower cavity 6 more quickly and flow out from the through hole 7, the function of the shock absorber is equivalent to increasing the flow area of the recovery valve system, the recovery valve system on the shock absorber is helped to quickly release pressure of the upper cylinder body, the recovery stroke damping force is further reduced, and the riding comfort of an automobile is improved. The design solves the problem that the damping force of the FCD valve is not adjusted along with the frequency, and the FCD valve can change according to the predicted damping force adjusting frequency band under the action of different frequencies, so that the purpose of frequency selection is achieved.
The lower valve system component 4 comprises a lower valve system 41 and a support frame 42 arranged between the upper valve system 3 and the lower valve system 41, the support frame 42 is a sleeve structure with an opening at one end, the opening end face of the support frame 42 is matched and connected with the end face of the lower valve system 41 close to the outer edge, and the other end face of the support frame 42 is connected with the upper valve system 3.
The upper valve system 3 and the lower valve system 41 are composed of more than one elastic valve sheet 8, the elastic valve sheets are sequentially stacked, and the diameter of the elastic valve sheet 8 of the lower valve system 41 close to the support frame 42 is larger than that of the elastic valve sheet 8 at the other end. The diameter of the elastic valve sheet 8 of the upper valve system 3 close to the inner valve seat 1 is larger than that of the elastic valve sheet 8 close to the lower valve system component 4. The fixing part is a bolt 9 arranged on the valve sleeve, the upper valve system 3 and the lower valve system component 4 are fixedly connected in the valve sleeve 2 through the bolt 9, gaskets 9 are respectively arranged among the upper valve system 3, the lower valve system component 4 and the valve sleeve 2, and the diameter of each gasket 10 is smaller than that of each elastic valve plate 8.
The bottom of the inner valve seat 1 is provided with an annular boss 12, and the outer end face of the annular boss 12 is in sealing contact connection with the end face of the upper valve system 3 at a position close to the outer edge of the upper valve system 3. The inner valve seat 1 comprises an inner valve seat body and a connecting end, the inner valve seat body is of a cavity structure with one end being closed and the other end being open, a connecting port is formed in the closed end of the inner valve seat body, the connecting end is arranged at the connecting port of the inner valve seat body, a mounting hole 14 communicated to the cavity of the inner valve seat is formed in the connecting end, the mounting hole 14 is formed in the inner valve seat and used for being connected with a piston rod, and a valve system is mounted on the piston rod. The valve sleeve 2 is in threaded connection with the inner valve seat 1, the valve sleeve 2 is sleeved on the inner valve seat 1 and is fixedly connected with the inner valve seat 1, and the inner wall of the valve sleeve 2 is provided with an annular limiting boss 13 for limiting the position of the inner valve seat 1 in the valve sleeve 2. The bottom of the valve sleeve 2 is provided with more than one positioning hole 11 matched with the screwing tool so as to facilitate the assembly and disassembly between the valve sleeve and the inner valve seat.
Example two
As shown in fig. 2, the difference between the first embodiment and the second embodiment is that the lower valve train assembly 4 in the present embodiment includes a lower valve train 41 and a support frame 42 disposed between the lower valve train 41 and the valve housing 2, the support frame 42 is a sleeve structure with an open end, an open end surface of the support frame 42 is connected to an end surface of the lower valve train 41 near an outer edge, and another end surface of the support frame 42 is connected to the valve housing 2. The support frame 42 is arranged on the bolt 9, the opening end of the support frame 42 supports the lower valve system 41, and when the upper valve system 3 is stressed, the acting force is transmitted to the lower valve system 41, so that the lower valve system is elastically deformed, and a space for the upper valve system 3 to move towards the lower valve system 41 is provided; when the shock absorber where the FCD valve is located is in a restoring stroke, the restoring valve system on the shock absorber moves upwards, the oil pressure of the upper cylinder body of the restoring valve system rises, working fluid enters the upper cavity body 5 of the FCD valve through the circulation hole, when the working frequency of the shock absorber is larger than the maximum action frequency of the FCD valve, the thrust of the working fluid enables the lower valve system component 4 to generate elastic deformation, the upper valve system 3 moves towards the lower valve system component along the bolt 9 while elastically deforming, the upper cavity body 5 is communicated with the lower cavity body 6, and the effect of expanding the frequency selection range can be achieved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An FCD valve train structure characterized by: comprises an inner valve seat and a valve sleeve, wherein the inner valve seat is of a hollow cylindrical structure with a convex section, the valve sleeve is of a bottle cap-shaped structure with an opening at one end, the opening end of the valve sleeve is connected with the inner valve seat to form a cavity, an upper valve system and a lower valve system component are sequentially arranged in the cavity, the upper valve system and the lower valve system component are respectively arranged on the valve sleeve through a fixing piece, the upper valve system and the lower valve system component are respectively sleeved on the fixing piece, the upper valve system can axially slide along the fixing piece, the upper valve system divides the cavity into an upper cavity and a lower cavity which are independent, at least one through hole is arranged on the part of the valve sleeve, which is positioned in the lower cavity, when the shock absorber where the FCD valve is located is in a recovery stroke, working fluid enters the upper cavity, when the working frequency of the shock absorber is between the minimum action frequency and the maximum action frequency of the FCD valve, the thrust of the working fluid enables the upper valve system to generate elastic deformation, and the working fluid can enter the lower cavity and flow out of the through hole; when the working frequency of the shock absorber is greater than the maximum action frequency of the FCD valve, the lower valve system component generates elastic deformation by the thrust of the working fluid, the upper valve system moves towards the lower valve system component along the fixing piece while elastically deforming, and the working fluid enters the lower cavity and flows out of the through hole.
2. An FCD valve train construction according to claim 1, wherein: the lower valve system component comprises a lower valve system and a support frame arranged between the upper valve system and the lower valve system, the support frame is of a sleeve structure with one open end, the open end face of the support frame is connected with the end face of the lower valve system close to the outer edge in a matched mode, and the other end face of the support frame is connected with the upper valve system.
3. An FCD valve train construction according to claim 1, wherein: the lower valve system component comprises a lower valve system and a support frame arranged between the lower valve system and the valve sleeve, the support frame is of a sleeve structure with an opening at one end, the opening end face of the support frame is connected with the end face of the lower valve system close to the outer edge in a matched mode, and the other end face of the support frame is connected with the valve sleeve.
4. An FCD valve train structure according to claim 2 or 3, wherein: the lower valve system is composed of more than one elastic valve plate, the elastic valve plates are sequentially stacked, and the diameter of the elastic valve plate close to the support frame is larger than that of the elastic valve plate at the other end.
5. An FCD valve train construction according to claim 1, wherein: the upper valve system is composed of more than one elastic valve plate, the elastic valve plates are sequentially stacked, and the diameter of the elastic valve plate close to the inner valve seat is larger than that of the elastic valve plate close to the lower valve system component.
6. An FCD valve train construction according to claim 1, wherein: the fixing piece is a bolt arranged on the valve sleeve, the upper valve system assembly and the lower valve system assembly are fixedly connected in the valve sleeve through the bolt, gaskets are respectively arranged among the upper valve system assembly, the lower valve system assembly and the valve sleeve, and the diameter of each gasket is smaller than that of each elastic valve plate.
7. An FCD valve train construction according to claim 1, wherein: the bottom of the inner valve seat is provided with an annular boss, and the outer end face of the annular boss is in sealing contact connection with the end face of the upper valve system at the position close to the outer edge of the upper valve system.
8. An FCD valve train construction according to claim 1, wherein: the inner valve seat comprises an inner valve seat body and a connecting end, the inner valve seat body is of a cavity structure with one end being closed and the other end being open, a connecting port is formed in the closed end of the inner valve seat body, the connecting end is arranged at the connecting port of the inner valve seat body, and a mounting hole communicated to the cavity of the inner valve seat is formed in the connecting end.
9. An FCD valve train construction according to claim 1, wherein: the valve sleeve is in threaded connection with the inner valve seat, and an annular limiting boss is arranged on the inner wall of the valve sleeve.
10. An FCD valve train construction according to claim 1, wherein: the bottom of the valve sleeve is provided with more than one positioning hole matched with the screwing tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151267.5U CN210889892U (en) | 2019-07-22 | 2019-07-22 | FCD valve system structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151267.5U CN210889892U (en) | 2019-07-22 | 2019-07-22 | FCD valve system structure |
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| CN210889892U true CN210889892U (en) | 2020-06-30 |
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| CN201921151267.5U Active CN210889892U (en) | 2019-07-22 | 2019-07-22 | FCD valve system structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410446A (en) * | 2019-07-22 | 2019-11-05 | 成都九鼎科技(集团)有限公司 | A kind of FCD valve valve architecture |
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2019
- 2019-07-22 CN CN201921151267.5U patent/CN210889892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410446A (en) * | 2019-07-22 | 2019-11-05 | 成都九鼎科技(集团)有限公司 | A kind of FCD valve valve architecture |
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