Shock absorber, suspension system and vehicle

Abstract

The utility model discloses a shock absorber, a suspension system and a vehicle, the shock absorber comprises a shell, a first shell is provided with a connecting part, the connecting part is suitable for being connected with a vehicle body, a second shell is suitable for being connected with a suspension of the vehicle, and a dust cover is telescopically connected between the first shell and the second shell; the piston rod is arranged in the shell and connected with the second shell, a ventilation hole is formed in the second shell, the first side of the ventilation hole is communicated with the interior of the shell, and the second side of the ventilation hole is communicated with the exterior of the shock absorber. Therefore, the vent hole is formed in the second shell, and the interior and the exterior of the shock absorber shell are communicated through the vent hole, so that the problem of gas noise or expansion deformation of the dust cover can be avoided, water drainage after water enters the shock absorber can be facilitated, the problem of corrosion caused by water storage in the shock absorber can be avoided, and further, the service life of the shock absorber is prolonged. The stability and reliability of the vehicle can be improved, and the driving experience of passengers can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a shock absorber, a suspension system and a vehicle. Background Art

[0002] With the development of technology and the improvement of users' living standards, vehicles have become an essential means of transportation for people. A suspension system is provided in the vehicle. The suspension system is a device for transmitting the interaction force between the vehicle body and the ground. The suspension transmits the acting force and torque feedback from the road surface. During the transmission process, the suspension can attenuate the vibration and impact transmitted from the acting force to the vehicle body, thereby improving the driving experience of the driver.

[0003] In the related art, most suspension systems are composed of elastic members, guiding mechanisms and shock absorbers. The shock absorbers in the prior art are generally located at the bottom of the vehicle, and a dust cover is provided on the shock absorber to prevent foreign matters such as external dust from entering the interior of the shock absorber and causing damage to some parts inside the shock absorber, affecting the normal operation of the shock absorber. However, since the dust cover in the shock absorber in the prior art cannot be completely sealed, problems such as gas noise or expansion and deformation of the dust cover will occur. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a shock absorber, the structure of which can not only effectively avoid problems such as gas noise or expansion and deformation of the dust cover, but also prevent water accumulation in the shock absorber.

[0005] The utility model further provides a suspension system.

[0006] The utility model further provides a vehicle.

[0007] The shock absorber according to the utility model includes: a housing, the housing includes a first housing, a second housing and a dust cover, a connecting portion is provided on the first housing, the connecting portion is adapted to be connected to the vehicle body, the second housing is adapted to be connected to the suspension of the vehicle, and the dust cover is telescopically connected between the first housing and the second housing; a piston rod, the piston rod is disposed in the housing and connected to the second housing, the second housing is provided with a ventilation hole, a first side of the ventilation hole is communicated with the interior of the housing, and a second side of the ventilation hole is communicated with the outside of the shock absorber.

[0008] Thus, by opening ventilation holes in the second housing, and the ventilation holes connecting the inside and outside of the shock absorber housing, not only can problems such as gas noise or the expansion and deformation of the dust cover be avoided, but it can also contribute to the drainage of water entering the shock absorber, preventing rust problems caused by water accumulation inside the shock absorber. Further, it can improve the stability and reliability of the vehicle and enhance the riding experience of passengers.

[0009] In some examples of the present utility model, there are multiple ventilation holes, and the multiple ventilation holes are spaced apart on the second housing.

[0010] In some examples of the present utility model, the ventilation holes are provided at one end of the second housing axially away from the first housing.

[0011] In some examples of the present utility model, the shock absorber further includes a support rod. The second housing includes a housing main body and a base. One axial end of the housing main body is connected to the dust cover, the base is provided at the other axial end of the housing main body and is connected to the housing main body. A connection hole is provided in the middle of the base. The support rod is connected to the connection hole and extends axially toward the side away from the first housing. One axial end of the support rod is adapted to be connected to the vehicle's suspension, the piston rod is connected to the other axial end of the support rod, the ventilation holes are opened in the base, and the ventilation holes are spaced apart from the piston rod.

[0012] In some examples of the present utility model, a filter element is provided in the ventilation holes.

[0013] In some examples of the present utility model, the filter element is provided on the first side and / or the second side of the ventilation holes.

[0014] In some examples of the present utility model, a limiting step portion is provided on the first side and / or the second side of the ventilation holes, and the filter element is provided on the limiting step portion.

[0015] In some examples of the present utility model, the filter element is a filter net.

[0016] The suspension system according to an embodiment of the present utility model includes: the shock absorber described above.

[0017] The vehicle according to an embodiment of the present utility model includes: the suspension system described above.

[0018] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0020] Figure 1 is a schematic diagram of a shock absorber according to an embodiment of the present utility model;

[0021] Figure 2 is a schematic diagram of a shock absorber according to an embodiment of the present utility model;

[0022] Figure 3 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model;

[0023] Figure 4 is a partial cross-sectional view of a shock absorber according to an embodiment of the present utility model.

[0024] Reference numerals:

[0025] 100, shock absorber;

[0026] 10, housing; 101, first housing; 102, second housing; 103, dust cover; 104, connecting portion;

[0027] 1021, housing main body; 1022, base; 1023, support rod; 1024, ventilation hole; 1025, filter element; 1026, limiting step portion; 1027, connecting hole;

[0028] 20, piston rod. Detailed implementation manners

[0029] The embodiments of the present utility model will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model will be described in detail below.

[0030] Reference will be made below to Figures 1 - 4 Describe the shock absorber 100 according to an embodiment of the present utility model. The shock absorber 100 can be applied to a suspension system, and the suspension system can be applied to a vehicle.

[0031] In combination with Figures 1 - 4 As shown, the shock absorber 100 according to the present utility model mainly includes: a housing 10 and a piston rod 20. Among them, the housing 10 includes a first housing 101, a second housing 102, and a dust cover 103, which can form the basic framework of the housing 10 of the shock absorber 100 and ensure the rationality of the structural design of the shock absorber 100.

[0032] Furthermore, a connecting portion 104 is provided on the first housing 101. The connecting portion 104 is adapted to be connected to the vehicle body, and the second housing 102 is adapted to be connected to the vehicle suspension. In this way, the shock absorber 100 can be connected and fixed between the vehicle body and the vehicle suspension, which helps the shock absorber 100 to function, thereby reducing the vibration amplitude transmitted from the vehicle suspension to the vehicle body.

[0033] Furthermore, the dust cover 103 is telescopically connected between the first housing 101 and the second housing 102. This can prevent impurities such as dust, mud, sand, etc. from entering the interior of the shock absorber 100. Thus, it can not only avoid the contamination of the lubricating oil by impurities and ensure the good performance of the lubricating oil, but also prevent the internal parts of the shock absorber 100 from being worn by impurities, avoid problems such as oil leakage or component damage caused by impurities, and effectively extend the service life of the shock absorber 100.

[0034] Furthermore, the piston rod 20 is disposed inside the housing 10 and connected to the second housing 102. The second housing 102 drives the piston rod 20 to reciprocate inside the shock absorber 100. When the vehicle is traveling on an uneven road surface, the vehicle suspension will be subjected to impacts and vibrations from the road surface. These impacts and vibrations will be transmitted to the vehicle body through the shock absorber 100. Specifically, the vehicle suspension transmits the received impact force to the second housing 102, and the second housing 102 then transmits the impact force to the dust cover 103, causing the dust cover 103 to be compressed or stretched. At the same time, the second housing 102 makes a relative movement under the action of the impact force, and the second housing 102 drives the piston rod 20 to reciprocate together, so that the shock absorber 100 can effectively absorb and weaken the impacts and vibrations transmitted from the vehicle suspension to the vehicle body, keeping the vehicle body stable. The setting of the piston rod 20 can effectively improve the comfort and stability during vehicle driving.

[0035] Furthermore, the second housing 102 is provided with a ventilation hole 1024. The first side of the ventilation hole 1024 is in communication with the interior of the housing 10, and the second side of the ventilation hole 1024 is in communication with the outside of the shock absorber 100. During vehicle driving, certain heat and pressure changes will occur inside the shock absorber 100. Through the ventilation hole 1024, the interior and exterior of the housing 10 can be connected. The ventilation hole 1024 allows a certain amount of air to flow through to balance the internal pressure, can avoid problems such as gas noise or the expansion and deformation of the dust cover 103, and can prevent the damping effect from being affected by gas accumulation. In addition, the setting of the ventilation hole 1024 can also drain water after the interior of the shock absorber 100 gets water, making it difficult for water to accumulate inside the shock absorber 100, thereby avoiding the rust problem caused by water accumulation inside the shock absorber 100.

[0036] Thus, by providing a dust cover 103 between the first housing 101 and the second housing 102, and by providing ventilation holes 1024 in the second housing 102, with the ventilation holes 1024 connecting the interior and exterior of the housing 10 of the shock absorber 100, the provision of the dust cover 103 can block some foreign objects from entering the shock absorber 100, avoiding problems such as oil leakage or damage to the shock absorber 100 caused by foreign objects. The provision of the ventilation holes 1024 can not only avoid problems such as gas noise or expansion and deformation of the dust cover 103, but also help with drainage inside the housing 10, preventing rust problems inside the shock absorber 100 due to water accumulation. Further, the shock absorber 100 can not only improve the stability and reliability of the vehicle, extend the service life of the vehicle, but also enhance the riding experience of passengers.

[0037] In some embodiments of the present utility model, the movement mode of the piston rod 20 of the vehicle shock absorber 100 can be up and down movement and / or rotation.

[0038] Combined with Figure 2 、 Figure 3 and Figure 4 As shown, there are multiple ventilation holes 1024, and the multiple ventilation holes 1024 are spaced apart on the second housing 102. Specifically, there are multiple ventilation holes 1024, and the multiple ventilation holes 1024 are spaced apart on the second housing 102. By setting it in this way, multiple air circulation channels and drainage channels can be established between the interior and exterior of the shock absorber 100, making the air flow and water accumulation flow inside the shock absorber 100 more uniform and coordinated, ensuring good ventilation and drainage effects of the shock absorber 100. Thus, spacing the multiple ventilation holes 1024 on the second housing 102 can not only ensure good air circulation between the interior and exterior of the shock absorber 100, but also effectively avoid rust problems inside the shock absorber 100 due to water accumulation. In addition, a reasonable spacing between the ventilation holes 1024 is beneficial to ensuring the structural stability of the shock absorber 100, ensuring that the provision of the ventilation holes 1024 will not cause damage or affect the second housing 102 of the shock absorber 100.

[0039] Combined with Figure 2 、 Figure 3 and Figure 4 As shown, the ventilation holes 1024 are provided at one end of the second housing 102 axially away from the first housing 101. Specifically, since the second housing 102 is located below the first housing 101, by providing the ventilation holes 1024 at one end of the second housing 102 axially away from the first housing 101, that is, by providing the ventilation holes 1024 on the lower side of the second housing 102, this can not only facilitate the connection between the interior and exterior of the housing 10 by the ventilation holes 1024, but also facilitate the dirt inside the housing 10 to be discharged to the outside of the housing 10 through the ventilation holes 1024 under the action of gravity.

[0040] Combined Figure 2 , Figure 3 and Figure 4 As shown, the shock absorber 100 includes a support rod 1023, and the second housing 102 includes a housing main body 1021 and a base 1022.

[0041] Among them, one axial end of the housing main body 1021 is connected to the dust cover 103. In this way, not only can the dust cover 103 be fixedly connected between the first housing 101 and the second housing 102 to ensure the rationality of the structural arrangement, but also it can ensure that the dust cover 103 has a certain sealing effect and ensure the blocking function of the dust cover 103.

[0042] Furthermore, the base 1022 is arranged at the other axial end of the housing main body 1021 and is connected to the housing main body 1021. A connection hole 1027 is provided in the middle of the base 1022, and the support rod 1023 is connected to the connection hole 1027 and extends axially toward the side away from the first housing 101. Specifically, the base 1022 is connected to the housing main body 1021, and the connection hole 1027 in the middle of the base 1022 is connected to the support rod 1023. In this way, the interconnection between the housing main body 1021, the base 1022 and the support rod 1023 can be realized, so as to form the basic structure of the second housing 102 and ensure the rationality and stability of the structural arrangement of the second housing 102.

[0043] Furthermore, one axial end of the support rod 1023 is adapted to be connected to the vehicle's suspension. In this way, the connection between the vehicle's suspension and the second housing 102 can be realized, and the impact and vibration received by the vehicle's suspension can be effectively transmitted to the shock absorber 100.

[0044] Furthermore, the piston rod 20 is connected to the other axial end of the support rod 1023. Specifically, the piston rod 20 is connected to the other axial end of the support rod 1023. In this way, when the support rod 1023 receives the acting force transmitted by the vehicle's suspension, it can drive the piston rod 20 to move together.

[0045] Furthermore, a ventilation hole 1024 is opened in the base 1022. The ventilation hole 1024 and the piston rod 20 are spaced apart from each other. The first side of the base 1022 is located inside the cavity of the second housing 102, and the second side is located outside the shock absorber 100. By opening the ventilation hole 1024 in the base 1022, the internal and external communication of the shock absorber 100 can be realized through the ventilation hole 1024, and the fluidity between the inside and outside of the shock absorber 100 can be ensured. In addition, the ventilation hole 1024 and the piston rod 20 are spaced apart from each other, so as to ensure the stability of the connection between the piston rod 20 and the support rod 1023. Therefore, by opening the ventilation hole 1024 in the base 1022 and spacing the ventilation hole 1024 and the piston rod 20 apart from each other, not only the rationality of the structural arrangement can be ensured, but also the stability of the structural arrangement can be ensured.

[0046] In some embodiments of the present utility model, limiting step portions are provided on the connecting surfaces of the housing main body 1021, the base 1022, the support rod 1023, and the piston rod 20. This can not only simplify the installation process of the shock absorber 100, but also ensure the accuracy of the structural installation of the shock absorber 100.

[0047] In some embodiments of the present utility model, between the base 1022 and the housing main body 1021, and between the base 1022 and the support rod 1023, an internal thread and external thread connection method is adopted. This can not only make the connection between the base 1022 and the support rod 1023 simple and direct, but also make the connection between the base 1022 and the support rod 1023 stable and reliable, and can ensure the stability and reliability of the structure of the second housing 102.

[0048] Combined with Figure 2 、 Figure 3 and Figure 4 as shown, a filter element 1025 is provided in the ventilation hole 1024. Specifically, by providing the filter element 1025 in the ventilation hole 1024, while ensuring the fluidity of the ventilation hole 1024, the air or water outside the shock absorber 100 that is about to pass through the ventilation hole 1024 can be filtered, and some foreign objects in the air or water can be effectively blocked from entering the interior of the shock absorber 100. This can not only avoid problems such as component scratches caused by foreign objects entering the interior of the shock absorber 100, but also ensure the cleanliness inside the shock absorber 100, improve the stability and reliability of the shock absorber 100, and extend the service life of the shock absorber 100.

[0049] Combined with Figure 2 、 Figure 3 and Figure 4 as shown, the filter element 1025 is provided on the first side and / or the second side of the ventilation hole 1024. Specifically, by providing the filter element 1025 on any side of the ventilation hole 1024, not only can foreign objects with larger volumes in the air or water be effectively blocked from entering the interior of the shock absorber 100, but also the structure of the shock absorber 100 can be simplified, and the processing and installation processes of the shock absorber 100 can be simplified.

[0050] In addition, filter elements 1025 can also be provided on both sides of the ventilation hole 1024. With this setting, not only can the filtering effect of foreign objects at the ventilation hole 1024 be effectively improved, but also the cleanliness inside the shock absorber 100 can be further improved, further avoiding problems such as foreign object accumulation inside the shock absorber 100, improving the reliability of the shock absorber 100, and extending the service life of the shock absorber 100.

[0051] In some embodiments of the present utility model, the number of the filter elements 1025 can be one or more. The filter elements 1025 can be arranged at any position of the ventilation holes 1024. Specifically, the ventilation holes 1024 can be arranged not only on the first side and / or the second side of the ventilation holes 1024, but also inside the ventilation holes 1024. The positions and the number of the filter elements 1025 can be adjusted accordingly according to specific requirements, which can improve the versatility of the shock absorber 100.

[0052] Combined with Figure 2 、 Figure 3 and Figure 4 As shown, limiting step portions 1026 are arranged on the first side and / or the second side of the ventilation holes 1024, and the filter elements 1025 are arranged on the limiting step portions 1026. Specifically, by arranging the limiting step portions 1026 on the first side and / or the second side of the ventilation holes 1024 and arranging the filter elements 1025 on the limiting step portions 1026, the limiting step portions 1026 and the filter elements 1025 can limit each other, which can facilitate the installation and fixation of the filter elements 1025 at the ventilation holes 1024, prevent the filter elements 1025 from shifting or being misaligned, and ensure a good filtering effect of the filter elements 1025.

[0053] Furthermore, by arranging the limiting step portions 1026 on the first side and / or the second side of the ventilation holes 1024, the shock absorber 100 can be set accordingly according to different requirements, the shock absorber 100 can be applied to different vehicle models or environments, and the versatility of the shock absorber 100 can be improved.

[0054] In some embodiments of the present utility model, the filter elements 1025 can be welded or adhered to the limiting step portions 1026 of the ventilation holes 1024.

[0055] Combined with Figure 2 、 Figure 3 and Figure 4 As shown, the filter element 1025 is a filter net. Specifically, the filter net is a mesh structure with relatively uniform mesh sizes. By setting the filter element 1025 as a filter net, it can not only help block and filter foreign objects with larger volumes and ensure the filtering effect of the filter element 1025, but also facilitate the subsequent cleaning and maintenance of the filter element 1025, and reduce the manufacturing cost and maintenance cost of the shock absorber 100.

[0056] In some embodiments of the present utility model, the mesh sizes and the materials of the filter net can be adjusted according to specific requirements and specific application scenarios.

[0057] The suspension system according to the present utility model may mainly include: the shock absorber 100 described above. Specifically, since the structure of the shock absorber 100 is provided with a ventilation hole 1024, it can not only maintain the stability of the heat and air pressure inside the shock absorber 100, but also discharge the accumulated water inside the shock absorber 100 and block foreign objects outside from entering the inside of the shock absorber 100, so that the shock absorber 100 has good working performance. Applying the shock absorber 100 to the suspension system can improve the stability and reliability of the suspension system and extend the service life of the suspension system.

[0058] The vehicle according to the present utility model may mainly include: the suspension system described above. Specifically, since the shock absorber 100 is applied to the structure of the suspension system, the stability and reliability of the suspension system are both improved. Applying the suspension system to the vehicle can further improve the stability and reliability of the vehicle, thereby improving the working performance of the vehicle and enhancing the driving experience of passengers.

[0059] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0061] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A shock absorber, characterized in that: include: A housing, the housing comprising a first housing, a second housing and a dust cover, the first housing being provided with a connecting portion, the connecting portion being adapted to be connected to a vehicle body, the second housing being adapted to be connected to a suspension of a vehicle, and the dust cover being telescopically connected between the first housing and the second housing; A piston rod is disposed in the shell and connected to the second shell. The second shell is provided with a ventilation hole. A first side of the ventilation hole is connected to the inside of the shell, and a second side of the ventilation hole is connected to the outside of the shock absorber.

2. The shock absorber according to claim 1, characterized in that: There are a plurality of ventilation holes, and the plurality of ventilation holes are arranged at intervals on the second shell.

3. The shock absorber according to claim 2, characterized in that: The ventilation hole is arranged at an end of the second shell axially away from the first shell.

4. The shock absorber according to claim 3, characterized in that It also includes a support rod, the second shell includes a shell body and a base, one axial end of the shell body is connected to the dust cover, the base is arranged at the other axial end of the shell body and connected to the shell body, a connecting hole is arranged in the middle of the base, the support rod is connected to the connecting hole and extends axially toward a side away from the first shell, one axial end of the support rod is suitable for being connected to the suspension of the vehicle, the piston rod is connected to the other axial end of the support rod, the ventilation hole is opened in the base, and the ventilation hole and the piston rod are spaced apart from each other.

5. The vibration absorber according to claim 1, characterized in that: A filter is arranged in the ventilation hole.

6. The shock absorber according to claim 5, characterized in that The filter element is arranged on the first side and / or the second side of the ventilation hole.

7. The shock absorber according to claim 6, characterized in that A limiting step portion is provided on the first side and / or the second side of the ventilation hole, and the filter element is provided on the limiting step portion.

8. The vibration absorber according to claim 5, characterized in that: The filter element is a filter net.

9. A suspension system, characterized in that: include: The vibration absorber according to any one of claims 1 to 8.

10. A vehicle, characterized in that: include: The suspension system of claim 9.

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