Shock absorber for automobile

Abstract

The shock absorber for the automobile comprises a cylinder barrel and a piston rod, and hydraulic oil is arranged in the cylinder barrel. The piston rod extends into the cylinder barrel; the end, away from the piston rod, of the cylinder barrel is connected with the base. The spring upper seat is arranged at one end, far away from the cylinder barrel, of the piston rod; the spring lower seat is arranged on the cylinder barrel or the base; the spiral spring is arranged on the piston rod in a sleeving manner, and the spiral spring is arranged between the spring upper seat and the spring lower seat; a threaded hole is formed in the base, and an external thread is arranged on the outer surface of the cylinder barrel and connected with the threaded hole. The spring lower seat comprises an adjusting screw rod, a left hoop plate and a right hoop plate rotationally connected with the left hoop plate; and the adjusting screw rod is connected with the left hoop plate and the right hoop plate, so that the left hoop plate and the right hoop plate tightly hold the cylinder barrel or the base. By means of the overall length of the shock absorber for the automobile, the shock absorber for the automobile can be better matched with a gap between an automobile frame and an axle, and it is guaranteed that the shock absorber for the automobile is installed in a correct posture.

Description

TECHNICAL FIELD

[0001] The utility model relates to shock absorber technical field especially relates to the shock absorber for car. BACKGROUND

[0002] The shock absorber is the core component of the automobile suspension system, and it guarantees the driving comfort and the control stability, and is the invisible defense line of the driving safety

[0003] The hydraulic shock absorber is the mainstream shock absorber used in the automobile industry, and it has higher installation precision requirement, and if it is inclined or inverted, the floating piston of the shock absorber can be stuck, so that the oil and gas are mixed, and the damping failure or cavitation is caused. The hydraulic shock absorber is installed between the frame and the axle of the automobile, so the length of the hydraulic shock absorber needs to be highly matched with the width between the frame and the axle of the automobile, so as to ensure that the shock absorber is installed between the frame and the axle in the correct posture.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. UTILITY MODEL CONTENT

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a shock absorber for car to improve the universality of the shock absorber.

[0006] The technical scheme of the utility model is as follows:

[0007] A shock absorber for car, the shock absorber for car comprises:

[0008] A cylinder and a piston rod, hydraulic oil is arranged in the cylinder, and the piston rod extends into the cylinder;

[0009] A base, one end of the cylinder away from the piston rod is connected with the base;

[0010] A spring upper seat, the spring upper seat is arranged at one end of the piston rod away from the cylinder;

[0011] A spring lower seat, the spring lower seat is arranged on the cylinder or the base;

[0012] A coil spring, the coil spring is sleeved on the piston rod, and the coil spring is arranged between the spring upper seat and the spring lower seat;

[0013] Wherein, a threaded hole is formed in the base, and an outer thread is arranged on the outer surface of the cylinder and connected with the threaded hole; the spring lower seat comprises an adjusting screw rod, a left clamp plate and a right clamp plate rotatably connected with the left clamp plate; the adjusting screw rod is connected with the left clamp plate and the right clamp plate, so that the left clamp plate and the right clamp plate are tightly clamped on the cylinder or the base.

[0014] Further, the adjusting screw passes through the right hoop plate and is rotationally connected to the left hoop plate; the spring lower seat further comprises an internally threaded sleeve; the internally threaded sleeve is threadedly connected to the adjusting screw; the right hoop plate is arranged between the left hoop plate and the internally threaded sleeve.

[0015] Further, the internally threaded sleeve is provided with a handle at an end away from the right hoop plate.

[0016] Further, the handle passes through the rotation axis of the adjusting screw; the handle is provided with a clearance groove; the adjusting screw extends into the clearance groove.

[0017] Further, the right hoop plate is provided with a clamping groove, and the adjusting screw passes through the right hoop plate along the clamping groove.

[0018] Further, the left hoop plate and the right hoop plate are respectively provided with an extension at a side away from the cylinder axis.

[0019] Further, the outer surface of the cylinder extends circumferentially to form at least one first limiting ring around the cylinder axis; when the spring lower seat is arranged on the cylinder, an end of the spring lower seat away from the coil spring contacts the first limiting ring.

[0020] Further, the outer surface of the base extends circumferentially to form at least one second limiting ring around the cylinder axis; when the spring lower seat is arranged on the base, an end of the spring lower seat away from the coil spring contacts the second limiting ring.

[0021] Further, the base is provided with a lower lifting ring at an end away from the piston rod.

[0022] Further, the piston rod is provided with an upper lifting ring at an end away from the base.

[0023] The beneficial technical effects of the present application are as follows:

[0024] (1) The automobile shock absorber of the utility model, including spiral spring, through the stretching and compression of spiral spring to store energy. At the same time, cylinder and piston rod are provided, and the vibration energy stored by the spiral spring is converted into heat and consumed by using the flow of hydraulic oil in the cylinder. At the same time, the spring lower seat is embraced on the cylinder or the base through the left hoop plate and the right hoop plate, and by tightening and loosening the adjusting screw, the spring lower seat can be conveniently fixed at different positions of the cylinder and the base, so as to adjust the pre-compression amount of the spiral spring, and then change the equivalent stiffness of the suspension system, which is suitable for different use scenarios. At the same time, the base is provided, the base supports the cylinder and is threadedly connected with the cylinder, and the relative rotation of the base and the cylinder can quickly adjust the depth of the cylinder extending into the base, and then adjust the overall length of the automobile shock absorber. By adjusting the overall length of the automobile shock absorber, the automobile shock absorber can better adapt to the gap between the automobile frame and the axle, and ensure that the automobile shock absorber is installed between the frame and the axle in the correct posture.

[0025] (2) Further, between the left hoop plate and the right hoop plate, the adjusting screw and the inner threaded sleeve are provided, and the inner threaded sleeve is rotated around the adjusting screw, so that the left hoop plate and the right hoop plate can be conveniently pressed or loosened to fix the spring lower seat on the cylinder or the base.

[0026] (3) Further, the left hoop plate and the right hoop plate are respectively provided with extension parts, and the spiral spring contacts the spring lower seat through the extension parts. The extension parts ensure that the spring lower seat stably supports the spiral spring, and avoid that the spiral spring slides through the spring lower seat. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A perspective structure schematic view of the automobile shock absorber in the embodiment one of the utility model is shown.

[0028] Figure 2 A partial enlarged view of the automobile shock absorber at A in the embodiment one of the utility model is shown.

[0029] Figure 3 A vertical section structure schematic view of the automobile shock absorber in the embodiment one of the utility model is shown.

[0030] Figure 4 A partial schematic view of the cylinder and the piston rod in the embodiment two of the utility model is shown.

[0031] Markings in the drawings:

[0032] 1. Base; 11. Threaded hole; 12. Lower lifting ring; 13. Second limiting ring; 2. Cylinder; 21. External thread; 22. First limiting ring; 3. Lower spring seat; 31. Left hoop plate; 32. Right hoop plate; 321. Slot; 33. Extension; 34. Adjusting screw; 35. Internal threaded sleeve; 351. Handle; 352. Alternating groove; 4. Piston rod; 41. Upper lifting ring; 42. Upper spring seat; 5. Helical spring. Detailed Implementation

[0033] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0034] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Example 1

[0036] The automobile shock absorber comprises a base 1, a spring upper seat 42, a spring lower seat 3 and a coil spring 5. A cylinder 2 and a piston rod 4 are provided, the cylinder 2 is filled with hydraulic oil. The piston rod 4 extends into the cylinder 2. The vibration energy stored in the coil spring 5 is converted into heat and consumed by the flow of the hydraulic oil in the cylinder 2. The base 1 is connected to the end of the cylinder 2 away from the piston rod 4. The spring upper seat 42 is arranged at the end of the piston rod 4 away from the cylinder 2. The spring lower seat 3 is arranged on the cylinder 2 or the base 1. The coil spring 5 is sleeved on the piston rod 4 and arranged between the spring upper seat 42 and the spring lower seat 3. The energy is stored by stretching and compressing the coil spring 5. The base 1 is provided with a threaded hole 11, and the outer surface of the cylinder 2 is provided with an external thread 21 connected to the threaded hole 11. The spring lower seat 3 comprises an adjusting screw 34, a left clamp plate 31 and a right clamp plate 32 rotatably connected to the left clamp plate 31. The adjusting screw 34 connects the left clamp plate 31 and the right clamp plate 32, so that the left clamp plate 31 and the right clamp plate 32 tightly hold the cylinder 2 or the base 1. By tightening or loosening the adjusting screw 34, the spring lower seat 3 can be conveniently fixed at different positions of the cylinder 2 and the base 1, so as to adjust the pre-compression amount of the coil spring 5, and then change the equivalent stiffness of the suspension system, which is suitable for different use scenarios. Meanwhile, the base 1 is provided, which supports the cylinder 2 and is threadedly connected to the cylinder 2. By relatively rotating the base 1 and the cylinder 2, the depth of the cylinder 2 extending into the base 1 can be quickly adjusted, and then the overall length of the automobile shock absorber is adjusted. By adjusting the overall length of the automobile shock absorber, the automobile shock absorber can better adapt to the gap between the automobile frame and the automobile axle, and ensure that the automobile shock absorber is installed between the automobile frame and the automobile axle in the correct posture.

[0037] In the embodiment, a support block can be arranged in the threaded hole 11. When the cylinder 2 extends into the threaded hole 11, the support block contacts and supports the cylinder 2. The support block cooperates with the threaded hole 11 to support and fix the position of the cylinder 2.

[0038] The adjusting screw 34 penetrates the right clamp plate 32 and is rotatably connected to the left clamp plate 31. The spring lower seat 3 further comprises an internally threaded sleeve 35. The internally threaded sleeve 35 is threadedly connected to the adjusting screw 34. The right clamp plate 32 is arranged between the left clamp plate 31 and the internally threaded sleeve 35. By rotating the internally threaded sleeve 35 around the adjusting screw 34, the left clamp plate 31 and the right clamp plate 32 can be conveniently compressed or loosened to fix the spring lower seat 3 on the cylinder 2 or the base 1.

[0039] Preferably, an end of the internally threaded sleeve 35 away from the right clamp plate 32 is extended to be provided with a handle 351. It is convenient for an operator to hold and rotate the internally threaded sleeve 35.

[0040] More preferably, the handle 351 passes through the rotation axis of the adjusting screw 34. A clearance groove 352 is formed on the handle 351. The adjusting screw 34 extends into the clearance groove 352. The rotation center of the handle 351 coincides with the rotation center of the adjusting screw 34.

[0041] A clamping groove 321 is formed on the right clamping plate 32. The adjusting screw 34 passes through the right clamping plate 32 along the clamping groove 321. The left clamping plate 31 and the right clamping plate 32 are respectively provided with an extension 33 away from the axis of the cylinder barrel 2. The coil spring 5 contacts the spring lower seat 3 through the extension 33. The extension 33 ensures that the spring lower seat 3 stably supports the coil spring 5, avoiding that the coil spring 5 is spread and slides off the spring lower seat 3.

[0042] Preferably, the base 1 is provided with a lower lifting ring 12 away from one end of the piston rod 4. The piston rod 4 is provided with an upper lifting ring 41 away from one end of the base 1. Through the upper lifting ring 41 and the lower lifting ring 12, the automobile shock absorber can be conveniently arranged between the vehicle frame and the vehicle axle.

[0043] The specific working process of the utility model is as follows:

[0044] When installing the automobile shock absorber, first rotate the cylinder barrel 2 around the base 1. At this time, the external thread 21 is screwed with the threaded hole 11, the cylinder barrel 2 extends into or out of the threaded hole 11, until the length of the automobile shock absorber is suitable for installation between the vehicle frame and the vehicle axle. Then rotate the internal thread sleeve 35, so that the internal thread sleeve 35 is away from the right clamping plate 32, at this time the left clamping plate 31 and the right clamping plate 32 are relaxed. At this time, the position of the adjusting spring lower seat 3 is adjusted along the length direction of the cylinder barrel 2, and then the pre-compression amount of the coil spring 5 is adjusted. Finally, the automobile shock absorber is fixed between the vehicle frame and the vehicle axle through the upper lifting ring 41 and the lower lifting ring 12, and the installation of the automobile shock absorber is completed.

[0045] Embodiment two

[0046] Based on embodiment one, embodiment two discloses an automobile shock absorber. Around the axis of the cylinder barrel 2, the outer surface of the cylinder barrel 2 is circumferentially extended to form at least one first limiting ring 22. When the spring lower seat 3 is arranged on the cylinder barrel 2, the end of the spring lower seat 3 away from the coil spring 5 contacts the first limiting ring 22. The first limiting ring 22 supports the spring lower seat 3, enhances the supporting capacity of the spring lower seat 3, and avoids that the coil spring 5 extrudes the spring lower seat 3 to make the spring lower seat 3 move and deviate from the original position.

[0047] In this embodiment, around the axis of the cylinder barrel 2, the outer surface of the base 1 is circumferentially extended to form at least one second limiting ring 13. When the spring lower seat 3 is arranged on the base 1, the end of the spring lower seat 3 away from the coil spring 5 contacts the second limiting ring 13. The second limiting ring 13 supports the spring lower seat 3, enhances the supporting capacity of the spring lower seat 3, and avoids that the coil spring 5 extrudes the spring lower seat 3 to make the spring lower seat 3 move and deviate from the original position.

[0048] The technical features of the above-described embodiments can be combined in any manner, and for brevity, not all possible combinations of the technical features in the above-described embodiments are described, but it should be understood that as long as the combinations of the technical features do not contradict each other, they are within the scope of the present disclosure.

[0049] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A shock absorber for an automobile, characterized by comprising: The automobile shock absorber comprises: a cylinder and a piston rod, the cylinder is provided with hydraulic oil inside; the piston rod extends into the cylinder; a base, one end of the cylinder away from the piston rod is connected with the base; a spring upper seat, the spring upper seat is arranged at one end of the piston rod away from the cylinder; a spring lower seat, the spring lower seat is arranged on the cylinder or the base; a coil spring, the coil spring is sleeved on the piston rod, and the coil spring is arranged between the spring upper seat and the spring lower seat; wherein, a threaded hole is formed on the base, and an outer thread is arranged on the outer surface of the cylinder to connect the threaded hole; the spring lower seat comprises an adjusting screw, a left clamp plate and a right clamp plate rotatably connected with the left clamp plate; the adjusting screw is connected with the left clamp plate and the right clamp plate, so that the left clamp plate and the right clamp plate are tightly clamped on the cylinder or the base.

2. The shock absorber for an automobile according to claim 1, characterized by: The adjusting screw passes through the right clamp plate and is rotatably connected with the left clamp plate; the spring lower seat further comprises an internally threaded sleeve; the internally threaded sleeve is threadedly connected with the adjusting screw; the right clamp plate is arranged between the left clamp plate and the internally threaded sleeve.

3. The shock absorber for an automobile according to claim 2, characterized by: One end of the internally threaded sleeve away from the right clamp plate is extended to arrange a handle.

4. The shock absorber for an automobile according to claim 3, characterized by: The handle passes through the rotation axis of the adjusting screw; an avoiding slot is formed on the handle; the adjusting screw extends into the avoiding slot.

5. The shock absorber for an automobile according to claim 1, wherein: A clamping slot is formed on the right clamp plate, and the adjusting screw passes through the right clamp plate along the clamping slot.

6. The shock absorber for an automobile according to claim 1, wherein: The left clamp plate and the right clamp plate are respectively provided with an extension part away from the axis of the cylinder.

7. The shock absorber for an automobile according to claim 1, wherein: Around the axis of the cylinder, the outer surface of the cylinder is circumferentially extended to form at least one first limiting ring; when the spring lower seat is arranged on the cylinder, one end of the spring lower seat away from the coil spring contacts the first limiting ring.

8. The shock absorber for an automobile according to claim 1, wherein: Around the axis of the cylinder, the outer surface of the base is circumferentially extended to form at least one second limiting ring; when the spring lower seat is arranged on the base, one end of the spring lower seat away from the coil spring contacts the second limiting ring.

9. The shock absorber for an automobile according to claim 1, wherein: A lower lifting ring is arranged at one end of the base away from the piston rod.

10. The shock absorber for an automobile according to claim 1, wherein: An upper lifting ring is arranged at one end of the piston rod away from the base.

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