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 housing, the housing comprises a first cylinder, a second cylinder and a dust cover; a piston rod assembly; the dustproof part is arranged on the periphery of the first barrel in a sleeving mode, and at least part of the dustproof part abuts against the connecting position of the dustproof cover and the first barrel. Therefore, the dustproof part is arranged on the periphery of the first barrel in a sleeving mode, and at least part of the dustproof part abuts against the connecting position of the dustproof cover and the first barrel, so that impurities are prevented from being accumulated at the connecting position of the dustproof cover and the first barrel, and the cleanliness of the connecting position of the dustproof cover and the first barrel can be improved; according to the shock absorber, the situation that the paint surface of the shell is scratched due to impurity accumulation at the joint of the dust cover and the first barrel can be prevented, the situation that impurities enter the shock absorber from a gap at the joint of the dust cover and the first barrel to damage the internal structure of the shock absorber can be prevented, further, the service life of the shock absorber can be prolonged, and the maintenance cost of the shock absorber can be reduced.

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 advancement of technology and the improvement of people's living standards, vehicles have become an indispensable means of transportation. Vehicles are equipped with a suspension system, which transmits the interaction forces between the vehicle body and the ground. The suspension system transmits the force and torque reflected by the road surface. During this transmission process, the suspension system can attenuate wheel vibration, mitigate impact, and enhance the driver's driving experience, ensuring the vehicle achieves ideal motion characteristics and stable driving capabilities.

[0003] Conventional suspension systems are mostly composed of elastic parts, guide mechanisms, shock absorbers and other structures. Shock absorbers play a vital role in the suspension system. They can not only absorb and attenuate vibrations to improve driving comfort, but also help control the body posture and help maintain the vehicle's controllability and safety.

[0004] In the related art, the upper end of the shock absorber dust cover is clamped to the shock absorber cylinder through a clamp, but impurities are easily accumulated at the clamping position between the dust cover and the cylinder, which can easily cause the cylinder paint surface to be scratched during the extension and retraction of the dust cover, and the reliability of the shock absorber is low. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems in the prior art. To this end, one object of the present invention is to provide a shock absorber having a better cleanliness structure and can prevent the paint surface of the shell from being scratched due to accumulation of impurities at the connection between the dust cover and the first cylinder.

[0006] The utility model further proposes a suspension system.

[0007] The utility model further provides a vehicle.

[0008] According to the shock absorber of the utility model, it includes: a shell, the shell includes a first cylinder, a second cylinder and a dust cover, the first cylinder is provided with a connecting portion, the connecting portion is suitable for being connected to a vehicle body, and the dust cover is telescopically connected between the first cylinder and the second cylinder; a piston rod assembly, the piston rod assembly is arranged in the shell and is connected to the second cylinder, at least part of the piston rod assembly extends from one end of the second cylinder axially away from the first cylinder and is suitable for being connected to the suspension system of the vehicle; a dustproof part, the dustproof part is sleeved on the outer periphery of the first cylinder, the dustproof part at least partially abuts against the connection between the dust cover and the first cylinder to prevent impurities from accumulating at the connection between the dust cover and the first cylinder.

[0009] Therefore, by making the dustproof part sleeved on the outer periphery of the first cylinder and making the dustproof part at least partially abut against the connection between the dust cover and the first cylinder to prevent impurities from accumulating at the connection between the dust cover and the first cylinder, the cleanliness of the connection between the dust cover and the first cylinder can be improved. Not only can the connection between the dust cover and the first cylinder be prevented from scratching the paint surface of the shell due to the accumulation of impurities, but also impurities can be prevented from entering the shock absorber through the gap at the connection between the dust cover and the first cylinder to cause damage to its internal structure. Further, the service life of the shock absorber can be extended and the maintenance cost of the shock absorber can be reduced.

[0010] In some examples of the present invention, the dust-proof part includes a main body and an extension part, the main body is sleeved on the outer circumference of the first cylinder, the radial inner side of the main body is connected and fixed to the first cylinder, and the radial inner side of the main body abuts the connection between the dust cover and the first cylinder, the extension part is arranged on the radial outer side of the main body and is connected to the main body, the extension part extends axially toward the side close to the second cylinder, and the circumferential cover of the extension part is arranged on the outside of the dust cover and is spaced apart from the dust cover.

[0011] In some examples of the present invention, a flange is provided at the radially inner first end of the main body, and the flange is fitted into the connection between the dust cover and the first cylinder to cover the outer side of the connection between the dust cover and the first cylinder.

[0012] In some examples of the present invention, a guide surface is provided on a side of the main body facing away from the dust cover, and the guide surface gradually moves away from the first cylinder in the direction from the first cylinder axially toward the second cylinder.

[0013] In some examples of the present invention, the radial inner side of the main body is interference fit with the first cylinder.

[0014] In some examples of the present invention, a first mating surface is provided on at least a portion of the radial inner side of the main body, and a second mating surface is provided on the first cylinder. The first mating surface and the second mating surface are interference fit, and the interference fit between the first mating surface and the second mating surface includes at least one of a plane fit, a curved surface fit, and a bevel fit.

[0015] In some examples of the present invention, the dustproof part is a dustproof ring, which is sleeved on the outer peripheral side of the first cylinder and located at the connection between the dustproof cover and the first cylinder.

[0016] In some examples of the present invention, the dustproof ring is interference fit with the first cylinder, and the dustproof ring includes at least one of a rubber ring, a silicone ring and a latex ring.

[0017] A suspension system according to an embodiment of the present invention includes: the shock absorber described above.

[0018] A vehicle according to an embodiment of the present invention includes: the suspension system described above.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic diagram of a shock absorber according to an embodiment of the present utility model;

[0022] Figure 2 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model;

[0023] Figure 3 is a partial cross-sectional view of a shock absorber according to an embodiment of the present utility model;

[0024] Figure 4 is a schematic diagram of a dustproof member according to an embodiment of the present utility model;

[0025] Figure 5 Schematic diagram of a dustproof piece according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] 100. Shock absorber;

[0028] 10. Housing; 101. First cylinder; 1011. Connecting portion; 102. Second cylinder; 103. Dust cover;

[0029] 20. Dustproof part; 201. Main body; 2011. Flanged edge; 2012. Guide surface; 202. Extension portion;

[0030] 30. Piston rod assembly. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0032] Reference below Figure 1-Figure 5 A shock absorber 100 according to an embodiment of the present invention is described. The shock absorber 100 may be applied to a suspension system, and the suspension system may be applied to a vehicle.

[0033] Combine Figure 1-Figure 5 As shown, the shock absorber 100 according to the present invention can mainly include: a housing 10 and a dustproof member 20. The housing 10 includes a first cylinder 101, a second cylinder 102 and a dustproof cover 103, which can constitute the basic framework of the housing 10 in the shock absorber 100, and can ensure the rationality and reliability of the structural design of the shock absorber 100.

[0034] Furthermore, the dust cover 103 is telescopically connected between the first cylinder 101 and the second cylinder 102, which can prevent impurities such as dust and sand from entering the inside of the shock absorber 100, thereby not only preventing impurities from contaminating the lubricating oil and ensuring the good lubrication performance of the lubricating oil, but also preventing impurities from causing wear to the parts inside the shock absorber 100, avoiding problems such as oil leakage or component damage caused by impurities, and effectively extending the service life of the shock absorber 100.

[0035] Furthermore, the piston rod assembly 30 is arranged in the shell 10 and connected to the second cylinder 102. This not only ensures the stability of the installation of the piston rod assembly 30 and prevents the piston rod assembly 30 from loosening, shaking or falling off, but also enables the various structures of the shock absorber 100 to cooperate with each other to achieve the normal operation of the shock absorber 100, so that the shock absorber 100 can effectively absorb and weaken the impact and vibration energy transmitted to the shock absorber 100 to keep the vehicle body stable.

[0036] Furthermore, the first cylinder 101 is provided with a connecting portion 1011, which is suitable for being connected to a vehicle body. At least a portion of the piston rod assembly 30 extends from one end of the second cylinder 102 axially away from the first cylinder 101 and is suitable for being connected to the suspension system of the vehicle. This facilitates the connection between the piston rod assembly 30 and the suspension system, and the shock absorber 100 can be connected and fixed between the vehicle body and the suspension system of the vehicle. During the driving of the vehicle, part of the impact and vibration transmitted to the suspension system can be effectively transmitted to the shock absorber 100. After being buffered by the shock absorber 100, the remaining impact force is transmitted to the vehicle body, thereby reducing the vibration amplitude transmitted from the vehicle suspension to the vehicle body, which can help the shock absorber 100 to function effectively and improve the comfort of the vehicle.

[0037] Furthermore, the dustproof member 20 is sleeved on the outer periphery of the first cylinder 101, and the dustproof member 20 at least partially abuts against the connection between the dust cover 103 and the first cylinder 101 to prevent impurities from accumulating at the connection between the dust cover 103 and the first cylinder 101. In this way, the dustproof member 20 can cover the connection between the dust cover 103 and the first cylinder 101 to form a barrier, preventing dust, mud and other impurities from accumulating at the connection between the dust cover 103 and the first cylinder 101, causing scratches or wear on the paint surface of the first cylinder 101, and preventing dust, mud and other impurities from entering the shock absorber 100 through the gap at the connection between the dust cover 103 and the first cylinder 101 to cause damage to its internal structure, thereby not only maintaining the good working performance of the shock absorber 100 and extending the service life of the shock absorber 100, but also reducing the number of cleaning times at the connection between the dust cover 103 and the first cylinder 101, thereby reducing the cleaning cost of the shock absorber 100.

[0038] Therefore, by making the dustproof part 20 sleeve on the outer periphery of the first cylinder 101 and making the dustproof part 20 at least partially abut against the connection between the dust cover 103 and the first cylinder 101, impurities can be prevented from accumulating at the connection between the dust cover 103 and the first cylinder 101. In this way, the cleanliness of the connection between the dust cover 103 and the first cylinder 101 can be improved. Not only can the connection between the dust cover 103 and the first cylinder 101 be prevented from scratching the shell paint surface due to the accumulation of impurities, but also impurities can be prevented from entering the shock absorber 100 through the gap at the connection between the dust cover 103 and the first cylinder 101 to cause damage to its internal structure. Further, the service life of the shock absorber 100 can be extended and the maintenance cost of the shock absorber 100 can be reduced.

[0039] Combine Figure 1 、 Figure 2 and, Figure 3 and Figure 5 As shown, the dustproof part 20 includes a main body 201 and an extension part 202. The main body 201 is sleeved on the outer periphery of the first cylinder 101. The radial inner side of the main body 201 is connected and fixed to the first cylinder 101. The radial inner side of the main body 201 abuts the connection between the dust cover 103 and the first cylinder 101. The extension part 202 is arranged on the radial outer side of the main body 201 and is connected to the main body 201. The extension part 202 extends axially toward the side close to the second cylinder 102. The circumferential cover of the extension part 202 is arranged on the outside of the dust cover 103 and is spaced apart from the dust cover 103.

[0040] Specifically, the main body 201 of the dustproof part 20 is sleeved on the outer periphery of the first cylinder 101, and the radial inner side of the main body 201 is connected and fixed to the first cylinder 101, and the radial inner side of the main body 201 abuts against the connection between the dust cover 103 and the first cylinder 101. This not only ensures the stability of the structural setting of the dustproof part 20, prevents the dustproof part 20 from falling off or loosening, but also ensures the effectiveness of the structural setting of the dustproof part 20, and forms a barrier at the connection between the dust cover 103 and the first cylinder 101 to prevent the connection between the dust cover 103 and the first cylinder 101 from being scratched, worn or damaged due to the accumulation of impurities.

[0041] Furthermore, the extension portion 202 of the dustproof part 20 is arranged on the radially outer side of the main body 201 and is connected to the main body 201. The extension portion 202 extends axially toward the side close to the second cylinder 102. The circumferential cover of the extension portion 202 is arranged on the outer side of the dust cover 103 and is spaced apart from the dust cover 103. This not only improves the barrier effect of the dustproof part 20 on impurities, and improves the protection effect of the dustproof part 20 on the connection between the dust cover 103 and the first cylinder 101, but also makes the structure of the dustproof part 20 adapt to the setting of the dust cover 103, and can avoid the extension portion 202 from affecting or interfering with the telescopic movement of the dust cover 103. In addition, it can also facilitate the installation and disassembly of the dustproof part 20 while improving the structural stability and rigidity of the dustproof part 20.

[0042] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a flange 2011 is provided at the radially inner first axial end of the main body 201 , and the flange 2011 is in contact with the connection between the dust cover 103 and the first cylinder 101 to cover the outer side of the connection between the dust cover 103 and the first cylinder 101 . Specifically, by providing a flange 2011 at the axial first end on the radial inner side of the main body 201, and making the flange 2011 fit in with the connection between the dust cover 103 and the first cylinder 101, so as to cover the outer side of the connection between the dust cover 103 and the first cylinder 101, this not only ensures that the flange 2011 structure of the main body 201 can completely cover the connection between the dust cover 103 and the first cylinder 101, so as to effectively prevent impurities from accumulating at the connection between the dust cover 103 and the first cylinder 101, but also improves the edge strength of the main body 201, and avoids deformation of the dustproof part 20 after fitting and abutting the connection between the dust cover 103 and the first cylinder 101. Further, the stability and reliability of the dustproof part 20 can be improved, and the working performance and structural stability of the shock absorber 100 can be improved.

[0043] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, a guide surface 2012 is provided on the side of the main body 201 facing away from the dust cover 103, and the guide surface 2012 gradually moves away from the first cylinder 101 in the direction from the first cylinder 101 to the second cylinder 102. Specifically, by providing the guide surface 2012 on the side of the main body 201 facing away from the dust cover 103, and by gradually moving the guide surface 2012 away from the first cylinder 101 in the direction from the first cylinder 101 to the second cylinder 102, not only can the movement trajectory of impurities such as dust be guided, so that the impurities slide along the guide surface 2012, thereby preventing the accumulation of impurities at the connection between the dustproof member 20 and the first cylinder 101 and on the main body 201, but also the inclined design of the guide surface 2012 allows the main body 201 of the dustproof member 20 to be cleaned by simply wiping or shaking, thereby facilitating the cleaning of impurities on the main body 201 and reducing the impact of impurities on the performance of the shock absorber 100.

[0044] Combine Figure 1 、 Figure 2 and Figure 3 As shown, the radial inner side of the main body 201 is interference fit with the first cylinder 101. Specifically, by making the radial inner side of the main body 201 interference fit with the first cylinder 101, not only can the radial inner side of the main body 201 be tightly fitted with the first cylinder 101, thereby improving the connection strength between the main body 201 and the first cylinder 101, improving the stability of the dustproof member 20 structure, and preventing the dustproof member 20 from falling off, loosening, or sliding, but also improving the sealing effect of the dustproof member 20 on the connection between the dust cover 103 and the first cylinder 101, and improving the dustproof member 20's barrier effect on impurities.

[0045] Combine Figure 1 、 Figure 2 and Figure 3 As shown, at least a portion of the radially inner side of the main body 201 is provided with a first mating surface, and a second mating surface is provided on the first cylinder 101. The first mating surface and the second mating surface are interference fit, and the interference fit between the first mating surface and the second mating surface includes at least one of a plane fit, a curved surface fit, and a bevel fit. Specifically, by making the first mating surface and the second mating surface interference fit, and the interference fit is at least one of a plane fit, a curved surface fit, and a bevel fit, not only can the first mating surface and the second mating surface be closely fitted, thereby improving the fastening force of the dustproof part 20, thereby ensuring a reliable connection between the dustproof part 20 and the first cylinder 101, and preventing the main body 201 from detaching, loosening, or sliding, but also can facilitate the installation and removal of the dustproof part 20, and facilitate the maintenance and replacement of the dustproof part 20.

[0046] Combine Figure 1 、 Figure 2 and Figure 3As shown, the dustproof member 20 is a dustproof ring, which is sleeved on the outer peripheral side of the first cylinder 101 and located at the connection between the dust cover 103 and the first cylinder 101. Specifically, by adopting a dustproof ring as the dustproof member 20, the dustproof ring is sleeved on the outer peripheral side of the first cylinder 101, so that at least part of the dustproof member 20 is located at the connection between the dust cover 103 and the first cylinder 101 and covers the connection, this not only ensures the rationality and reliability of the structural arrangement of the dustproof member 20, simplifies the structural design of the dustproof member 20, improves the convenience of installation of the dustproof member 20, but also prevents the accumulation of impurities at the connection between the dust cover 103 and the first cylinder 101, which may cause scratches on the shell paint surface or damage to components.

[0047] Combine Figure 1 、 Figure 2 and Figure 3 As shown, the dust ring is interference fit with the first cylinder 101, and the dust ring includes at least one of a rubber ring, a silicone ring, and a latex ring. Specifically, by making the dust ring and the first cylinder 101 interference fit, and the dust ring includes at least one of a rubber ring, a silicone ring, and a latex ring, this not only allows the dust ring to fit tightly with the first cylinder 101, improves the stability and reliability of the connection between the dust ring and the first cylinder 101, and prevents the dust ring from sliding or loosening, but also improves the sealing effect of the shock absorber 100, prevents impurities from accumulating at the connection between the dust cover 103 and the first cylinder 101, and further, the dust ring can absorb part of the vibration energy to improve the structural strength of the shock absorber 100.

[0048] The suspension system according to the present invention may mainly include the aforementioned shock absorber 100. Specifically, because the shock absorber 100 has a more reliable structure and can prevent the paint surface of the shell from being scratched due to accumulation of impurities at the connection between the dust cover 103 and the first cylinder 101, the application of the shock absorber 100 to the suspension system can optimize the structural design of the suspension system, extend the service life of the suspension system, and reduce the cleaning cost of the suspension system.

[0049] The vehicle according to the present invention may primarily include the aforementioned suspension system. Specifically, the suspension system structure is optimized and improved due to the application of the shock absorber 100. Application of the suspension system to a vehicle not only ensures vehicle stability and reliability, but also extends the vehicle's service life and reduces vehicle maintenance costs.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation to the present invention.

[0051] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0052] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A shock absorber, characterized in that: include: A housing (10), the housing (10) comprising a first cylinder (101), a second cylinder (102) and a dust cover (103), the first cylinder (101) being provided with a connecting portion (1011), the connecting portion (1011) being adapted to be connected to a vehicle body, the dust cover (103) being telescopically connected between the first cylinder (101) and the second cylinder (102); a piston rod assembly (30), the piston rod assembly (30) being disposed in the housing (10) and connected to the second cylinder (102), at least a portion of the piston rod assembly (30) extending from an end of the second cylinder (102) axially away from the first cylinder (101) and being suitable for connection to a suspension system of a vehicle; a dustproof member (20), the dustproof member (20) being sleeved on the outer periphery of the first cylinder (101), the dustproof member (20) at least partially abutting against the connection between the dustproof cover (103) and the first cylinder (101) to prevent impurities from accumulating at the connection between the dustproof cover (103) and the first cylinder (101); The dustproof part (20) includes a main body (201) and an extension part (202), wherein the main body (201) is sleeved on the outer periphery of the first cylinder (101), the radial inner side of the main body (201) is connected and fixed to the first cylinder (101), and the radial inner side of the main body (201) abuts against the connection between the dust cover (103) and the first cylinder (101), and the extension part (202) is arranged on the radial outer side of the main body (201) and is connected to the main body (201), and the extension part (202) extends axially toward a side close to the second cylinder (102), and the circumferential cover of the extension part (202) is arranged outside the dust cover (103) and is spaced apart from the dust cover (103).

2. The shock absorber according to claim 1, characterized in that A flange (2011) is provided at the radially inner first end of the main body (201), and the flange (2011) is in contact with the connection between the dust cover (103) and the first cylinder (101) to shield the outer side of the connection between the dust cover (103) and the first cylinder (101).

3. The shock absorber according to claim 2, characterized in that A guide surface (2012) is provided on a side of the main body (201) facing away from the dust cover (103), and in a direction in which the first cylinder (101) is axially directed toward the second cylinder (102), the guide surface (2012) gradually moves away from the first cylinder (101).

4. The shock absorber according to claim 2, characterized in that The radial inner side of the main body (201) is interference-fitted with the first cylinder (101).

5. The shock absorber according to claim 4, characterized in that At least a portion of the radial inner side of the main body (201) is provided with a first mating surface, and a second mating surface is provided on the first cylinder (101). The first mating surface and the second mating surface are interference fit, and the interference fit between the first mating surface and the second mating surface includes at least one of a plane fit, a curved surface fit, and a bevel fit.

6. The shock absorber according to claim 1, characterized in that The dustproof member (20) is a dustproof ring, which is sleeved on the outer peripheral side of the first cylinder (101) and located at the connection between the dustproof cover (103) and the first cylinder (101).

7. The shock absorber according to claim 6, characterized in that The dustproof ring is interference-fitted with the first cylinder (101), and the dustproof ring comprises at least one of a silicone ring and a latex ring.

8. A suspension system, characterized in that: include: The vibration absorber according to any one of claims 1 to 7.

9. A vehicle, characterized in that: include: The suspension system of claim 8.

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