Shock absorber device of automobile chassis transmission shaft

Abstract

The utility model discloses a shock absorber device of an automobile chassis transmission shaft, and particularly relates to the field of automobile shock absorption, which comprises a mounting plate, a mounting bolt is inserted in the mounting plate, one side of the mounting plate is fixedly connected with an insertion rod, the outer wall of the insertion rod is slidably connected with a sleeve, and the outer wall of the sleeve is fixedly provided with a spring base. A first buffer spring is fixedly installed on one side of the spring base, the outer wall of the insertion rod is sleeved with the first buffer spring, the first buffer spring is fixedly installed on one side of the installation plate, and a dustproof gasket and a sealing gasket are fixedly connected into the sleeve. According to the shock absorber device, the first buffer spring, the second buffer spring, the connecting hole and the annular groove are arranged, when the shock absorber device is vibrated, the first buffer spring, the second buffer spring, the connecting hole and the annular groove sequentially buffer and reduce the force generated by vibration, so that the effect of reducing the vibration for multiple times is achieved, and the shock absorber device is suitable for being used for shock absorption. And the damping effect on vibration is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile shock absorption, and more specifically, to a shock absorber device for a transmission shaft of an automobile chassis. Background Art

[0002] Automobile shock absorption refers to the vibration generated by the impact of elastic elements in the suspension system. In order to improve the smoothness of the car's ride, shock absorbers are installed in parallel with the elastic elements in the suspension to attenuate the vibration.

[0003] Chinese utility model CN218377448U discloses a shock absorber device for a vehicle chassis drive shaft. The device comprises a ball-fork universal joint with a connecting shaft disposed on one side of the ball-fork universal joint. The connecting shaft, remote from the ball-fork universal joint, is connected to a telescopic rod. One end of the telescopic rod slides within a sleeve via a spring. A first sound-insulating sponge is sleeved on the outer wall of the telescopic rod, while a second sound-insulating sponge is sleeved on the outer wall of the sleeve. The device achieves noise reduction by arranging the telescopic rod, sleeve, spring, first sound-insulating sponge, and second sound-insulating sponge. The first and second sound-insulating sponges have a certain sound-absorbing effect. Furthermore, the first housing, first conduit, second housing, and second conduit allow the telescopic rod to slide smoothly within the sleeve, enhancing the shock-absorbing effect.

[0004] However, this setting needle has a poor shock absorption effect on the car when it is used to absorb shock, which greatly affects the driver's experience. To address this problem, it is necessary for technicians in this field to develop a shock absorber device for the automobile chassis drive shaft. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present utility model provides a shock absorber device for a transmission shaft of an automobile chassis. By arranging a first buffer spring, a second buffer spring, a connecting gap and an annular groove, when the shock absorber device is subjected to vibration, the first buffer spring, the second buffer spring, the connecting gap and the annular groove successively buffer and reduce the force generated by the vibration, so as to achieve the effect of reducing the vibration multiple times, improve the shock absorption effect of the vibration, and solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a shock absorber device for a vehicle chassis drive shaft, comprising a mounting plate, a mounting bolt being inserted into the interior of the mounting plate, a plug rod being fixedly connected to one side of the mounting plate, a sleeve being slidably connected to the outer wall of the plug rod, a spring base being fixedly installed on the outer wall of the sleeve, a first buffer spring being fixedly installed on one side of the spring base, the first buffer spring being sleeved on the outer wall of the plug rod, the first buffer spring being fixedly installed on one side of the mounting plate, a dustproof gasket and a sealing gasket being fixedly connected to the interior of the sleeve, and the dustproof gasket and the sealing gasket being sleeved on the outer wall of the plug rod.

[0007] In a preferred embodiment, one end of the insertion rod is fixedly connected to a piston block, and the piston block is slidably connected to the interior of the sleeve.

[0008] In a preferred embodiment, a second buffer spring is fixedly mounted on one side of the piston block, and the second buffer spring is fixedly mounted inside the sleeve.

[0009] In a preferred embodiment, a first one-way valve and a second one-way valve are fixedly installed inside the sleeve.

[0010] In a preferred embodiment, a collecting groove is provided inside the sleeve, and the collecting groove is arranged at the bottom of the first one-way valve and the second one-way valve.

[0011] In a preferred embodiment, an annular groove and a connecting pore are provided inside the sleeve, and the connecting pore is provided between the collecting groove and the annular groove.

[0012] In a preferred embodiment, a mounting piece is fixedly mounted on the outer wall of the sleeve.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The utility model is provided with a first buffer spring, a second buffer spring, a connecting hole and an annular groove. When the shock absorber device is subjected to vibration, the first buffer spring, the second buffer spring, the connecting hole and the annular groove sequentially buffer and reduce the force generated by the vibration, so as to achieve the effect of reducing the vibration multiple times, improve the shock absorption effect of the vibration, and prevent the vibration from being transmitted to the interior of the car, which would cause a bad driving experience for the driver of the car. 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 cross-sectional view of the sleeve structure of the present utility model;

[0017] Figure 3 For this utility model Figure 2 A magnified view of the structure of part A.

[0018] The accompanying drawings are marked as follows: 1. Mounting plate; 2. Mounting bolt; 3. Insert rod; 4. Sleeve; 5. Spring base; 6. First buffer spring; 7. Dustproof gasket; 8. Sealing gasket; 9. Piston block; 10. Second buffer spring; 11. First one-way valve; 12. Second one-way valve; 13. Collecting tank; 14. Annular groove; 15. Connecting gap; 16. Mounting part. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1: Refer to the attached instructions Figure 1-3 The utility model relates to a shock absorber device for a transmission shaft of an automobile chassis, comprising a mounting plate 1, a mounting bolt 2 being inserted into the interior of the mounting plate 1, a plug rod 3 being fixedly connected to one side of the mounting plate 1, a sleeve 4 being slidably connected to the outer wall of the plug rod 3, the interior of the sleeve 4 being filled with hydraulic oil for extrusion by a piston block 9, a spring base 5 being fixedly mounted on the outer wall of the sleeve 4, a first buffer spring 6 being fixedly mounted on one side of the spring base 5, the first buffer spring 6 being sleeved on the outer wall of the plug rod 3, the first buffer spring 6 being fixedly mounted on one side of the mounting plate 1, a dustproof gasket 7 and a sealing gasket 8 being fixedly connected to the interior of the sleeve 4, the dustproof gasket 8 being arranged to prevent dust from following the plug rod 3 into the interior of the sleeve 4, the dustproof gasket 7 and the sealing gasket 8 being sleeved on the outer wall of the plug rod 3;

[0021] One end of the insertion rod 3 is fixedly connected to a piston block 9, which is slidably connected to the inside of the sleeve 4. A second buffer spring 10 is fixedly installed on one side of the piston block 9, and the second buffer spring 10 is fixedly installed inside the sleeve 4. A first one-way valve 11 and a second one-way valve 12 are fixedly installed inside the sleeve 4. A collecting groove 13 is provided inside the sleeve 4, and the collecting groove 13 is arranged at the bottom of the first one-way valve 11 and the second one-way valve 12. An annular groove 14 and a connecting pore 15 are provided inside the sleeve 4. The connecting pore 15 is provided between the collecting groove 13 and the annular groove 14. A small amount of hydraulic oil and a large amount of gas are arranged inside the annular groove 14, so that when the hydraulic oil is drawn back into the sleeve 4, the gas inside the annular groove 14 will not enter the interior of the sleeve 4, and a mounting part 16 is fixedly installed on the outer wall of the sleeve 4.

[0022] It should be noted that, when the shock absorber device is subjected to vibration, the distance between the mounting plate 1 and the sleeve 4 will be closer. In this process, the first buffer spring 6 will be squeezed and contracted by the mounting plate 1 and the spring base 5, thereby preliminarily reducing and buffering the vibration. At the same time, the mounting plate 1 will drive the insertion rod 3 to be inserted into the interior of the sleeve 4, so that the insertion rod 3 pushes the piston block 9 to slide along the interior of the sleeve 4 and squeeze the second buffer spring 10 to contract, thereby causing the piston block 9 to squeeze the hydraulic oil inside the sleeve 4, allowing the hydraulic oil to press open the second one-way valve 12 to be discharged, allowing the piston block 9 to further eliminate the vibration by squeezing the first one-way valve 11 to contract and squeeze the hydraulic oil. After the hydraulic oil is discharged through the second one-way valve 12, the hydraulic oil will enter the interior of the connecting pore 15 through the collecting groove 13, so that the friction between the connecting pore 15 and the hydraulic oil forms a damping force on the vibration, thereby reducing the vibration. After passing through the connecting pore 15, the hydraulic oil will enter the interior of the annular groove 14, squeezing the gas inside the annular groove 14 to shrink, so that the hydraulic oil squeezes the gas inside the annular groove 14 to shrink and finally reduce the vibration, thereby achieving the effect of reducing the vibration multiple times, improving the shock absorption effect of the vibration, and preventing the vibration from being transmitted to the interior of the car, causing a bad driving experience for the driver of the car;

[0023] Furthermore, when the shock absorber device is no longer subjected to vibration, the first buffer spring 6 and the second buffer spring 10 will stretch and reset, eventually causing the piston block 9 to slide and reset along the inside of the sleeve 4. The reset of the piston block 9 will form a negative pressure inside the sleeve 4, so that the negative pressure will open the first one-way valve 11, and then the hydraulic oil inside the annular groove 14, the connecting pore 15, and the collecting groove 13 will be gradually drawn back to the inside of the sleeve 4, waiting for subsequent work.

[0024] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up", "down", "left", and "right" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0025] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0026] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shock absorber device for a transmission shaft of an automobile chassis, comprising a mounting plate (1), characterized in that: The interior of the mounting plate (1) is plugged with a mounting bolt (2), one side of the mounting plate (1) is fixedly connected with an insertion rod (3), the outer wall of the insertion rod (3) is slidably connected with a sleeve (4), the outer wall of the sleeve (4) is fixedly installed with a spring base (5), one side of the spring base (5) is fixedly installed with a first buffer spring (6), the first buffer spring (6) is sleeved on the outer wall of the insertion rod (3), the first buffer spring (6) is fixedly installed on one side of the mounting plate (1), the interior of the sleeve (4) is fixedly connected with a dustproof gasket (7) and a sealing gasket (8), the dustproof gasket (7) and the sealing gasket (8) are sleeved on the outer wall of the insertion rod (3).

2. The shock absorber device for a vehicle chassis transmission shaft according to claim 1, characterized in that: One end of the insertion rod (3) is fixedly connected to a piston block (9), and the piston block (9) is slidably connected to the interior of the sleeve (4).

3. The shock absorber device for a vehicle chassis transmission shaft according to claim 2, characterized in that: A second buffer spring (10) is fixedly mounted on one side of the piston block (9), and the second buffer spring (10) is fixedly mounted inside the sleeve (4).

4. The shock absorber device for a vehicle chassis transmission shaft according to claim 3, characterized in that: A first one-way valve (11) and a second one-way valve (12) are fixedly installed inside the sleeve (4).

5. The shock absorber device for a vehicle chassis transmission shaft according to claim 4, characterized in that: A collecting groove (13) is provided inside the sleeve (4), and the collecting groove (13) is arranged at the bottom of the first one-way valve (11) and the second one-way valve (12).

6. The shock absorber device for a vehicle chassis transmission shaft according to claim 5, characterized in that: An annular groove (14) and a connecting pore (15) are provided inside the sleeve (4), and the connecting pore (15) is provided between the collecting groove (13) and the annular groove (14).

7. The shock absorber device for a transmission shaft of an automobile chassis according to claim 6, characterized in that: A mounting piece (16) is fixedly mounted on the outer wall of the sleeve (4).

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