CN220646600U - Hydraulic damper for dynamically adjusting opening degree of valve body through inertia - Google Patents
Hydraulic damper for dynamically adjusting opening degree of valve body through inertia Download PDFInfo
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- CN220646600U CN220646600U CN202322402705.3U CN202322402705U CN220646600U CN 220646600 U CN220646600 U CN 220646600U CN 202322402705 U CN202322402705 U CN 202322402705U CN 220646600 U CN220646600 U CN 220646600U
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- piston rod
- valve core
- wall
- shell
- valve body
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- 238000013016 damping Methods 0.000 claims abstract description 46
- 239000012530 fluid Substances 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 230000001133 acceleration Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The utility model relates to the technical field of automobile hydraulic shock absorption, in particular to a hydraulic damper for dynamically adjusting the opening degree of a valve body by inertia, which comprises a shell, wherein one end of a piston rod is attached to the inner wall of the shell, an adjusting spring is connected to the top of the inner wall of the piston rod, a pre-tightening spring is attached to the outer wall of the piston rod, the opening degree of the valve body is dynamically adjusted by the inertia of a movable valve core through the inertia of the movable valve core, when the piston rod is subjected to severe impact load, the opening degree of the valve core is increased, the local resistance is reduced, the acceleration of the piston rod is reduced after the impact load applied to the piston rod is weakened, the opening degree of the valve core is reduced, the local resistance is increased, the effect of dynamically adjusting the damping is achieved, the pre-tightening force is conveniently provided for the piston rod of the device through an elastic structure formed between the pre-tightening spring and the shell and the piston rod, so that the stroke of the piston rod is adjusted, the stability and the sensitivity of the device are enhanced, and the device has a certain elasticity and rigidity, and a shock absorption effect is realized.
Description
Technical Field
The utility model relates to the technical field of automobile hydraulic shock absorption, in particular to a hydraulic damper capable of dynamically adjusting the opening degree of a valve body through inertia.
Background
The wheel type vehicle in running can be influenced by various road conditions and various driving conditions, wherein the mass of the vehicle body moves upwards or downwards relative to the wheels of the vehicle, the safety of the vehicle and the comfort of a vehicle user can be influenced by the vertical movement of the wheels or the vehicle body, therefore, the conditions can be improved by adopting a hydraulic damping mode, which is a common damping mode in the field of automobiles, a damper piston is generally arranged in an automobile damper, a piston rod of the damper piston and a damper shell are respectively arranged on the vehicle body and a wheel assembly, and when the automobile vibrates up and down in the running process, the piston reciprocates in a piston cylinder to play a damping role.
When a mechanical system is excited by the outside, the damper can vibrate, so that pressure difference is generated in the hydraulic damper, liquid flows between the valve core and the damping hole, and the liquid can be subjected to resistance and friction force during flowing, so that damping force is formed through structures such as valve ports and holes, vibration energy is consumed, and in a system such as a suspension system of an off-road vehicle, which needs to bear severe impact load, the opening size of the valve ports in the damper needs to be dynamically adjusted in order to ensure the stability of the vehicle body or the main body structure.
The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: 1. the existing design is inconvenient to realize the self-adjusting function of dynamic damping; 2. the existing design has limited elasticity and rigidity, and insufficient stability and sensitivity of damping.
Disclosure of Invention
The utility model aims to provide a hydraulic damper for dynamically adjusting the opening degree of a valve body by inertia so as to solve the problems that the adjustment of dynamic damping and the stability and the sensitivity of damping are inconvenient to realize, and the like, which are proposed in the background art. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hydraulic damper of inertia dynamic regulation valve body aperture, includes the shell, the inner wall laminating of shell has the one end of piston rod, the inner wall top of piston rod is connected with adjusting spring, the outer wall laminating of piston rod has the pretension spring, adjusting spring's one end is connected with movable case.
Further preferably, two ends of the pre-tightening spring are respectively attached to the shell and the piston rod, and an elastic structure is formed between the shell and the piston rod through the pre-tightening spring.
Further preferably, one end of the surface of the piston rod is provided with a damping hole, and the tail end of the damping hole is provided with a valve core oil groove.
Further preferably, a through hole and a damping hole are arranged in the movable valve core, and a valve core oil groove is formed in the damping hole.
Further preferably, the movable valve core and the inner wall of the piston rod form an elastic structure through an adjusting spring, and the size of the inner wall at one end of the piston rod is consistent with the size of the outer wall of the movable valve core.
Further preferably, the inner wall of the shell is filled with damping fluid, and the central axis of the shell is consistent with the central axis of the piston rod.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, through the inertia of the movable valve core, when the piston rod receives severe impact load, the opening degree of the valve core is increased, the local resistance is reduced, and after the impact load received by the piston rod is weakened, the acceleration of the piston rod is reduced, the opening degree of the valve core is reduced, the local resistance is increased, and the effect of dynamically adjusting damping is achieved.
According to the utility model, through the elastic structure formed between the pre-tightening spring, the shell and the piston rod, the pre-tightening force is conveniently provided for the piston rod of the device, so that the stroke of the piston rod is adjusted, the stability and the sensitivity of the device are enhanced, the device has certain elasticity and rigidity, and a better shock absorption effect is realized.
Drawings
FIG. 1 is a schematic diagram of the overall axial structure of the present utility model;
FIG. 2 is a schematic diagram of the front view of the present utility model in full section;
FIG. 3 is a schematic view showing the sectional structure of the inner wall of the piston rod of the present utility model;
FIG. 4 is a schematic diagram of the axial structure of the movable valve of the present utility model;
FIG. 5 is a schematic view of a piston rod of the present utility model in a partially enlarged configuration;
FIG. 6 is a schematic diagram of a piston rod shaft of the present utility model in full section;
fig. 7 is a schematic diagram of the axial full section of the housing of the present utility model.
In the figure: 1. a housing; 2. a piston rod; 3. an adjusting spring; 4. a pre-tightening spring; 5. a movable valve core.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.
Referring to fig. 1 to 7, the present utility model provides a technical solution: the utility model provides a hydraulic damper of inertia dynamic regulation valve body aperture, includes shell 1, and the inner wall laminating of shell 1 has the one end of piston rod 2, and the inner wall top of piston rod 2 is connected with adjusting spring 3, and the outer wall laminating of piston rod 2 has pretension spring 4, and adjusting spring 3's one end is connected with movable case 5.
In this embodiment, as shown in fig. 1 and 2, two ends of the pre-tightening spring 4 are respectively attached to the housing 1 and the piston rod 2, and the housing 1 forms an elastic structure between the pre-tightening spring 4 and the piston rod 2, so that after the damping process is finished, the pre-tightening spring 4 resets the piston rod 2 to a preset position.
In this embodiment, as shown in fig. 3, 5 and 6, one end of the surface of the piston rod 2 is provided with a damping hole, and the end of the damping hole is provided with a valve core oil groove, and the structure is used for storing and conveying damping liquid, so that the damping liquid in the housing 1 can enter and flow out of the inner wall of the piston rod 2, thereby realizing the mutual flow of the damping liquid with the movable valve core 5.
In this embodiment, as shown in fig. 3 and 4, a through hole and a damping hole are provided in the movable valve core 5, and a valve core oil groove is provided outside the damping hole, and this structure is used for storing and conveying damping liquid, so that the damping liquid can smoothly enter and flow out of the valve core, thereby realizing the functions of adjusting and controlling the valve core.
In this embodiment, as shown in fig. 2 and 3, the movable valve core 5 forms an elastic structure with the inner wall of the piston rod 2 through the adjusting spring 3, and the inner wall size of one end of the piston rod 2 is consistent with the outer wall size of the movable valve core 5, so that the adjusting spring 3 is compressed through the inertia of the movable valve core 5, and the effect of dynamically adjusting damping is achieved.
In this embodiment, as shown in fig. 2 and 7, the inner wall of the housing 1 is filled with damping fluid, and the central axis of the housing 1 is consistent with the central axis of the piston rod 2, so that the damping fluid in the housing 1 can enter the piston rod 2 through the damping hole on the piston rod 2, and meanwhile, the stability of the device under impact load is ensured.
The application method and the advantages of the utility model are as follows: the hydraulic damper for dynamically adjusting the opening degree of the valve body by inertia has the following working process when in use:
as shown in fig. 1, 2, 3, 4, 5, 6 and 7, firstly, the outer wall of a piston part at one end of a piston rod 2 is attached to the inner wall of a shell 1, a round hole-shaped connecting seat is arranged at the tail end of the shell 1, and a round hole-shaped connecting seat is arranged at the tail end of the piston rod 2 and is used for being in butt joint with external parts; the two ends of the pre-tightening spring 4 are respectively connected with the shell 1 and the piston rod 2, the pre-tightening spring 4 is used for providing pre-tightening force for the piston rod 2 of the device so as to adjust the stroke of the piston rod 2 and strengthen the stability and sensitivity of the device, the device has certain elasticity and rigidity, the device can be selected according to specific application needs, meanwhile, a through hole and a damping hole are formed in the movable valve core 5 and are used for passing damping liquid, and a valve core oil groove is formed in the outer part of the damping hole of the movable valve core 5; the tail end of the damping hole of the piston rod 2 is provided with a valve core oil groove which is used for storing and conveying liquid, and the liquid can smoothly enter and flow out of the inner wall and the outer wall of the movable valve core 5 through the valve core oil groove, so that the adjusting and controlling functions of the movable valve core 5 are realized; when the piston rod 2 receives severe impact load, damping fluid in the shell 1 enters the piston rod 2 through a damping hole on the piston rod 2, meanwhile, the adjusting spring 3 is compressed by the inertia force of the movable valve core 5, the valve opening degree of the movable valve core 5 and the piston rod 2 is increased, the local resistance of the damping fluid at the valve is reduced, when the inertia force of the movable valve core 5 is smaller than the pressing force of the adjusting spring 3, the valve opening degree of the movable valve core 5 and the piston rod 2 is reduced, and the local resistance of the damping fluid at the valve is reduced; the damping liquid flows out to the other chamber of the piston rod 2 through the damping hole on the piston rod 2; after the end of the one-time damping process, the piston rod 2 is returned to the preset position by the pretensioning spring 4.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a hydraulic damper of inertia dynamic regulation valve body aperture, includes shell (1), its characterized in that: the inner wall laminating of shell (1) has the one end of piston rod (2), the inner wall top of piston rod (2) is connected with adjusting spring (3), the outer wall laminating of piston rod (2) has pretension spring (4), the one end of adjusting spring (3) is connected with movable case (5).
2. The hydraulic damper for inertially dynamically adjusting the opening of a valve body according to claim 1, wherein: the two ends of the pre-tightening spring (4) are respectively attached to the shell (1) and the piston rod (2), and an elastic structure is formed between the shell (1) and the piston rod (2) through the pre-tightening spring (4).
3. The hydraulic damper for inertially dynamically adjusting the opening of a valve body according to claim 1, wherein: and one end of the surface of the piston rod (2) is provided with a damping hole, and the tail end of the damping hole is provided with a valve core oil groove.
4. The hydraulic damper for inertially dynamically adjusting the opening of a valve body according to claim 1, wherein: the movable valve core (5) is internally provided with a through hole and a damping hole, and a valve core oil groove is formed in the outer part of the damping hole.
5. The hydraulic damper for inertially dynamically adjusting the opening of a valve body according to claim 1, wherein: the movable valve core (5) and the inner wall of the piston rod (2) form an elastic structure through the adjusting spring (3), and the size of the inner wall at one end of the piston rod (2) is consistent with the size of the outer wall of the movable valve core (5).
6. The hydraulic damper for inertially dynamically adjusting the opening of a valve body according to claim 1, wherein: the inner wall of the shell (1) is filled with damping fluid, and the central axis of the shell (1) is consistent with the central axis of the piston rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322402705.3U CN220646600U (en) | 2023-09-05 | 2023-09-05 | Hydraulic damper for dynamically adjusting opening degree of valve body through inertia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322402705.3U CN220646600U (en) | 2023-09-05 | 2023-09-05 | Hydraulic damper for dynamically adjusting opening degree of valve body through inertia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220646600U true CN220646600U (en) | 2024-03-22 |
Family
ID=90291645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322402705.3U Active CN220646600U (en) | 2023-09-05 | 2023-09-05 | Hydraulic damper for dynamically adjusting opening degree of valve body through inertia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220646600U (en) |
-
2023
- 2023-09-05 CN CN202322402705.3U patent/CN220646600U/en active Active
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