Device capable of reducing uncomfortable and hard feeling between vehicle body and ground

Abstract

The utility model discloses a device capable of reducing the uncomfortable and hard feeling of a vehicle body and the ground, and belongs to the technical field of vibration reduction equipment. The device capable of reducing the uncomfortable hard feeling between the vehicle body and the ground comprises an outer sleeve, a ventilation opening is formed in the lower portion of the outer sleeve, an oil seal is fixedly connected to the upper portion of the outer sleeve, a sealing assembly is arranged below the oil seal and connected with the outer sleeve, and an inner cavity of the sealing assembly is connected with an inner sleeve. According to the device capable of reducing the uncomfortable and hard feeling between the vehicle body and the ground, by arranging the sealing assembly, the device can improve the comfort through friction sealing, improvement of the contact viscoelastic force of the piston rod and reduction of high-frequency low-amplitude vibration so as to control vibration friction force, and meanwhile, by arranging the sealing ring, relative sealing is formed between the sealing ring and the piston rod, so that oil leakage is prevented, and the service life of the device is prolonged. Meanwhile, when the piston rod moves upwards, a certain amount of oil hung on the piston rod is scraped under the action of the sealing ring, and the recycling effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction equipment, and more particularly to a device capable of reducing the uncomfortable hard feeling between a vehicle body and the ground. Background Art

[0002] With the advancement of shock absorber technology, various vehicle models are placing increasingly stringent demands on shock absorber performance and NVH. As a chassis component, automotive shock absorbers attenuate vibrations from the road surface to the vehicle body, with the piston rod being a key component. During shock absorber operation, the piston rod continuously reciprocates. When traversing high-frequency, low-amplitude road conditions such as cracked or rocky roads, significant vibrations can occur, reducing driving comfort. This utility model addresses this issue by designing a device that reduces the uncomfortable, hard feeling between the vehicle body and the ground. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] The purpose of the present invention is to provide a device that can reduce the uncomfortable hard feeling between the vehicle body and the ground, so as to solve the problems raised in the above-mentioned background technology.

[0005] 2. Technical solution

[0006] A device that can reduce the uncomfortable hardness between a vehicle body and the ground, comprising an outer sleeve, a vent opening being provided at the bottom of the outer sleeve, an oil seal being fixedly connected to the top of the outer sleeve, a sealing assembly being provided below the oil seal, the sealing assembly being connected to the outer sleeve, and the inner cavity of the sealing assembly being connected to the inner sleeve, a piston rod being slidably connected to the inner cavity of the inner sleeve, one end of the piston rod being located in the inner cavity of the inner sleeve being fixedly connected to a fixing plate, a heat dissipation component being provided in the inner cavity of the outer sleeve, the heat dissipation component passing through the inner sleeve and being connected to the fixing plate.

[0007] Preferably, the sealing assembly includes a guide seat fixedly connected to the inner wall of the outer sleeve, the inner cavity of the guide seat is provided with a friction seal, a sealing ring is provided below the friction seal, the sealing ring is connected to the inner wall of the guide seat, and a bushing is provided below the sealing ring, the bushing is connected to the inner wall of the guide seat.

[0008] Preferably, the friction seal comprises a sealing inner ring fixedly connected to the inner wall of the guide seat, a sealing rubber is fixedly connected to the inner wall of the sealing inner ring, and the sealing rubber is slidably connected to the piston rod.

[0009] Preferably, the heat dissipation assembly includes a fixing frame fixedly connected to the inner wall of the outer sleeve, the outer side of the fixing frame is rotatably connected to a rotating rod, one end of the rotating rod passes through the inner sleeve and is connected to a transmission assembly, the transmission assembly is connected to a fixed plate, and the end of the rotating rod away from the inner sleeve is fixedly connected to a fan blade, and the fan blade is located above the vent.

[0010] Preferably, the transmission assembly includes a connecting cylinder fixedly connected below the fixed plate, the inner cavity of the connecting cylinder is rotatably connected to a spiral rod, and one end of the spiral rod away from the connecting cylinder passes through the inner sleeve and is fixedly connected to the rotating rod.

[0011] Beneficial effects

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1) In the present invention, by providing a sealing assembly, the device can improve the contact viscoelastic force of the piston rod through friction sealing, reduce high-frequency and low-amplitude vibration, and thus improve comfort by damping friction. At the same time, by providing a sealing ring, it forms a relative seal with the piston rod, thereby preventing oil leakage. At the same time, when the piston rod moves upward, under the action of the sealing ring, a certain amount of oil hanging on the piston rod is scraped off, thereby playing a recovery role.

[0014] 2) In the present invention, by providing a heat dissipation component, the device can automatically drive the connecting cylinder to move synchronously when the control piston rod rises or falls, so that the connecting cylinder drives the spiral rod to rotate. At this time, the spiral rod can drive the rotating rod to rotate, so that the fan blades cool the oil in the inner cavity of the inner sleeve, avoiding the high oil temperature, thereby further reducing the vibration of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the utility model from another perspective;

[0017] Figure 3 This is a cross-sectional view of the outer sleeve structure of the present utility model;

[0018] Figure 4 This is a cross-sectional view of the inner sleeve structure of the present utility model.

[0019] Explanation of the numbers in the figure: 1. Outer sleeve; 2. Vent; 3. Oil seal; 4. Seal assembly; 41. Guide seat; 42. Bushing; 43. Sealing ring; 44. Sealing inner ring; 45. Sealing rubber; 5. Inner sleeve; 6. Piston rod; 7. Fixing plate; 8. Heat dissipation assembly; 81. Fixing frame; 82. Rotating rod; 83. Fan blade; 84. Screw rod; 85. Connecting cylinder. DETAILED DESCRIPTION

[0020] Example: See Figure 1-4 A device that can reduce the uncomfortable hard feeling between the vehicle body and the ground includes an outer sleeve 1, a vent 2 is opened at the bottom of the outer sleeve 1, and an oil seal 3 is fixedly connected to the top of the outer sleeve 1, a sealing assembly 4 is provided below the oil seal 3, the sealing assembly 4 is connected to the outer sleeve 1, and the inner cavity of the sealing assembly 4 is connected to the inner sleeve 5, the inner cavity of the inner sleeve 5 is slidably connected to a piston rod 6, and one end of the piston rod 6 located in the inner cavity of the inner sleeve 5 is fixedly connected to a fixing plate 7, and the inner cavity of the outer sleeve 1 is provided with a heat dissipation component 8, the heat dissipation component 8 passes through the inner sleeve 5 and is connected to the fixing plate 7.

[0021] The sealing assembly 4 includes a guide seat 41 fixedly connected to the inner wall of the outer sleeve 1, the inner cavity of the guide seat 41 is provided with a friction seal, a sealing ring 43 is provided below the friction seal, the sealing ring 43 is connected to the inner wall of the guide seat 41, and a bushing 42 is provided below the sealing ring 43, the bushing 42 is connected to the inner wall of the guide seat 41, wherein, in order to improve the viscoelastic force of the piston rod contact and reduce high-frequency and low-amplitude vibrations to improve comfort by damping friction, the friction seal includes a sealing inner ring 44 fixedly connected to the inner wall of the guide seat 41, and a sealing rubber 45 is fixedly connected to the inner wall of the sealing inner ring 44, and the sealing rubber 45 is slidably connected to the piston rod 6.

[0022] By providing the sealing assembly 4, the device can improve the contact viscoelastic force of the piston rod through friction sealing, reduce high-frequency and low-amplitude vibrations, and thus improve comfort by damping friction. At the same time, by providing the sealing ring 43, it forms a relative seal with the piston rod 6, thereby preventing oil leakage. At the same time, when the piston rod 6 moves upward, under the action of the sealing ring 43, a certain amount of oil hanging on the piston rod 6 is scraped off, thereby playing a recovery role.

[0023] The heat dissipation assembly 8 includes a fixing frame 81 fixedly connected to the inner wall of the outer sleeve 1, and the outer side of the fixing frame 81 is rotatably connected to a rotating rod 82, one end of the rotating rod 82 passes through the inner sleeve 5 and is connected to a transmission assembly, and the transmission assembly is connected to the fixing plate 7, and the end of the rotating rod 82 away from the inner sleeve 5 is fixedly connected to a fan blade 83, and the fan blade 83 is located above the vent 2, and the transmission assembly includes a connecting tube 85 fixedly connected to the bottom of the fixing plate 7, and the inner cavity of the connecting tube 85 is rotatably connected to a spiral rod 84, and the end of the spiral rod 84 away from the connecting tube 85 passes through the inner sleeve 5 and is fixedly connected to the rotating rod 82.

[0024] By setting up the heat dissipation component 8, the device can automatically drive the connecting cylinder 85 to move synchronously when the control piston rod 6 rises or falls, so that the connecting cylinder 85 drives the screw rod 84 to rotate. At this time, the screw rod 84 can drive the rotating rod 82 to rotate, so that the fan blades 83 cool the oil in the inner cavity of the inner sleeve 5, avoiding the high oil temperature, thereby further reducing the vibration of the vehicle.

[0025] Working principle of this utility model:

[0026] During the movement of the shock absorber, the piston rod 6 contacts the sealing rubber 45 of the sealing assembly 4. At this time, the device comes into play, increasing the contact viscoelastic force of the piston rod 6 and reducing high-frequency, low-amplitude vibrations, thereby improving comfort by damping friction. The sealing ring 43 is assembled between the guide seat 41 and the bushing 42 to seal the piston rod 6. It can not only prevent internal oil leakage, but also scrape off a certain amount of oil attached to the piston rod during movement, thereby preventing oil leakage from reducing the use effect of the shock absorber.

[0027] When the piston rod 6 moves up and down, it will drive the fixed plate 7 fixedly connected to it to move synchronously, so that the fixed plate 7 drives the connecting tube 85 fixedly connected to it to move up and down. When the connecting tube 85 moves, it will drive the screw rod 84 to rotate, so that the screw rod 84 drives the rotating rod 82 fixedly connected to it to rotate. When the rotating rod 82 rotates, it will drive the fan blade 83 fixedly connected to it to rotate, so that the fan blade 83 cools the oil in the inner cavity of the inner sleeve 5.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for reducing the uncomfortable hardness between a vehicle body and the ground, comprising an outer sleeve (1), characterized in that: A vent (2) is provided below the outer sleeve (1), and an oil seal (3) is fixedly connected above the outer sleeve (1). A sealing assembly (4) is provided below the oil seal (3). The sealing assembly (4) is connected to the outer sleeve (1), and the inner cavity of the sealing assembly (4) is connected to the inner sleeve (5). The inner cavity of the inner sleeve (5) is slidably connected to a piston rod (6). One end of the piston rod (6) located in the inner cavity of the inner sleeve (5) is fixedly connected to a fixing plate (7). A heat dissipation component (8) is provided in the inner cavity of the outer sleeve (1), and the heat dissipation component (8) passes through the inner sleeve (5) and is connected to the fixing plate (7).

2. The device for reducing the uncomfortable hardness between a vehicle body and the ground according to claim 1, characterized in that: The sealing assembly (4) includes a guide seat (41) fixedly connected to the inner wall of the outer sleeve (1), the inner cavity of the guide seat (41) is provided with a friction seal, a sealing ring (43) is provided below the friction seal, the sealing ring (43) is connected to the inner wall of the guide seat (41), and a bushing (42) is provided below the sealing ring (43), and the bushing (42) is connected to the inner wall of the guide seat (41).

3. The device for reducing the uncomfortable hardness between a vehicle body and the ground according to claim 2, characterized in that: The friction seal comprises a sealing inner ring (44) fixedly connected to the inner wall of the guide seat (41), a sealing rubber (45) fixedly connected to the inner wall of the sealing inner ring (44), and the sealing rubber (45) is slidably connected to the piston rod (6).

4. The device for reducing the uncomfortable hardness between a vehicle body and the ground according to claim 1, characterized in that: The heat dissipation assembly (8) includes a fixing frame (81) fixedly connected to the inner wall of the outer sleeve (1), the outer side of the fixing frame (81) is rotatably connected to a rotating rod (82), one end of the rotating rod (82) passes through the inner sleeve (5) and is connected to a transmission assembly, the transmission assembly is connected to the fixing plate (7), and the end of the rotating rod (82) away from the inner sleeve (5) is fixedly connected to a fan blade (83), and the fan blade (83) is located above the vent (2).

5. The device for reducing the uncomfortable hardness between the vehicle body and the ground according to claim 4, characterized in that: The transmission assembly comprises a connecting cylinder (85) fixedly connected below the fixed plate (7); the inner cavity of the connecting cylinder (85) is rotatably connected to a spiral rod (84); one end of the spiral rod (84) away from the connecting cylinder (85) passes through the inner sleeve (5) and is fixedly connected to the rotating rod (82).

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