Automobile suspension spring device

Abstract

The utility model discloses an automobile suspension spring device which comprises a lower swing arm, a universal steering knuckle, a supporting rod and a damping mechanism, the universal steering knuckle is installed on the lower swing arm, the supporting rod is installed on the universal steering knuckle, and the damping mechanism is fixedly connected to the upper end of the supporting rod. The damping mechanism comprises an upper support, a spiral spring, a lower support and a damper, the lower support is fixedly connected to the upper end of the supporting rod, the damper is fixedly connected to the middle of the upper end of the lower support, the spiral spring is arranged at the outer side end of the damper, and a guide rod and an adjusting screw are arranged between the upper support and the lower support. A rotating nut is installed at the lower end of the adjusting screw in a threaded mode, and a locking mechanism is installed at the lower end of the guide rod. The pre-tightening force of the spiral spring is changed through rotation of the rotating nut on the adjusting screw rod, thrust borne by the rotating nut is reduced through the locking mechanism, and damage of the rotating nut to the adjusting screw rod is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile suspensions, and specifically relates to an automobile suspension spring device. Background Art

[0002] A suspension is a general term for all force transmission connecting devices between the vehicle frame (or a load-bearing body) and the axle (or wheels) of an automobile. Its function is to transmit the forces and torques acting between the wheels and the vehicle frame, and to buffer the impact force transmitted from the uneven road surface to the vehicle frame or body, and reduce the resulting vibration, so as to ensure that the automobile can drive smoothly.

[0003] The existing automobile suspension spring device has a single structure. Limited by local conditions, the spring is short, and the elasticity of the spring will gradually decrease during use, resulting in a reduction in the buffering effect of the automobile suspension, and it is easy to have angular deviation and loss of control when driving on uneven roads. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automobile suspension spring device, which can adjust the pre-tightening force of the helical spring to ensure the buffering effect of the automobile suspension on the automobile.

[0005] To achieve the above purpose, an automobile suspension spring device is provided, including: a lower control arm, a universal steering joint, a support rod, and a shock absorption mechanism. The universal steering joint is installed on the lower control arm, the support rod is installed on the universal steering joint, the shock absorption mechanism is fixedly connected to the upper end of the support rod, and the support rod is located in the middle of the shock absorption mechanism; the shock absorption mechanism includes an upper support, a helical spring, a lower support, and a shock absorber. The lower support is fixedly connected to the upper end of the support rod, and the support rod is located in the middle of the lower end of the lower support. The shock absorber is fixedly connected to the middle of the upper end of the lower support. The upper support is fixedly connected to the upper end of the shock absorber. The helical spring is arranged on the outer side of the shock absorber, and the shock absorber passes through the middle of the helical spring. The two ends of the helical spring are respectively fixedly connected to the lower support and the upper support. A guide rod and an adjusting screw are arranged between the upper support and the lower support, and the guide rod and the adjusting screw are located in the helical spring and are symmetrically distributed. The upper ends of the guide rod and the adjusting screw are respectively fixedly connected to the lower end of the upper support, and the lower ends of the guide rod and the adjusting screw penetrate through the lower support and are slidably connected to the lower support. A rotating nut is threadedly installed at the lower end of the adjusting screw. A locking mechanism is installed at the lower end of the guide rod, and the guide rod penetrates through the middle of the locking mechanism and is slidably connected to the locking mechanism. It can adjust the pre-tightening force of the helical spring to ensure the buffering effect of the automobile suspension on the automobile.

[0006] According to the described automobile suspension spring device, mounting bolts are installed in the upper support, and the mounting bolts penetrate through the upper support. It is used to install the device on the vehicle body.

[0007] According to the described automotive suspension spring device, the locking mechanism includes a housing, an adjusting bolt, and a clamping plate. A rectangular accommodating groove is formed in the housing. A through hole is formed in the middle of the upper end of the housing, and the through hole penetrates the housing and communicates with the accommodating groove. The guide rod passes through the through hole and is slidably connected to the through hole. There are two clamping plates and two adjusting bolts respectively. The clamping plates are symmetrically distributed in the accommodating groove and are slidably connected to the accommodating groove. The two adjusting bolts are respectively located in the middle of the two side ends of the housing, and the adjusting bolts penetrate the housing and extend into the accommodating groove. One end of the adjusting bolt is rotatably connected to the middle of the side end of the clamping plate, and the adjusting bolt is threadedly connected to the housing. It is used to support the lower support, reduce the thrust received by the rotating nut, reduce the damage to the tooth profile on the surface of the adjusting screw, and reduce the service life of the device.

[0008] According to the described automotive suspension spring device, the opposite ends of the two clamping plates are respectively set as arc surfaces. It improves the contact surface with the guide rod and ensures the fixing effect on the guide rod.

[0009] According to the described automotive suspension spring device, rubber pads are respectively fixedly connected to the opposite ends of the two clamping plates, and anti-slip patterns are provided on the surfaces of the rubber pads away from the clamping plates. It increases the friction on the surface of the clamping plate and improves the fixing effect on the guide rod.

[0010] According to the described automotive suspension spring device, the appearance of the housing is rectangular. It is convenient to adjust the locking mechanism.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. By rotating the rotating nut on the adjusting screw to change the pre-tightening force of the helical spring, the buffering effect of the automotive suspension on the vehicle is ensured.

[0013] 2. The lower support is supported from the guide rod by using the locking mechanism, reducing the thrust received by the rotating nut and reducing the damage caused by the rotating nut to the adjusting screw

[0014] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0016] Figure 1 is a perspective view of an automotive suspension spring device of the present utility model;

[0017] Figure 2 is a perspective view of the shock absorption mechanism of an automotive suspension spring device of the present utility model;

[0018] Figure 3 This is a cross-sectional view of the shock absorption mechanism of a vehicle suspension spring device of the present utility model;

[0019] Figure 4 This is a cross-sectional view of the locking mechanism of a vehicle suspension spring device of the present utility model.

[0020] In the figure: 1, lower swing arm; 2, universal steering joint; 3, support rod; 4, shock absorption mechanism; 5, mounting bolt; 6, upper support; 7, helical spring; 8, guide rod; 9, lower support; 10, locking mechanism; 11, rotating nut; 12, shock absorber; 13, adjusting screw; 14, housing; 15, adjusting bolt; 16, receiving groove; 17, clamping plate; 18, rubber pad; 19, through hole. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: a vehicle suspension spring device, including: a lower swing arm 1, a universal steering joint 2, a support rod 3, and a shock absorption mechanism 4. The universal steering joint 2 is installed on the lower swing arm 1, the support rod 3 is installed on the universal steering joint 2, the shock absorption mechanism 4 is fixedly connected to the upper end of the support rod 3, and the support rod 3 is located in the middle of the shock absorption mechanism 4; the shock absorption mechanism 4 includes an upper support 6, a helical spring 7, a lower support 9, and a shock absorber 12. The lower support 9 is fixedly connected to the upper end of the support rod 3, and the support rod 3 is located at the lower middle end of the lower support 9. The shock absorber 12 is fixedly connected to the upper middle end of the lower support 9. The upper support 6 is fixedly connected to the upper end of the shock absorber 12. The helical spring 7 is arranged on the outer side of the shock absorber 12, and the shock absorber 12 passes through the middle of the helical spring 7. The two ends of the helical spring 7 are respectively fixedly connected to the lower support 9 and the upper support 6. A guide rod 8 and an adjusting screw 13 are arranged between the upper support 6 and the lower support 9, and the guide rod 8 and the adjusting screw 13 are located in the helical spring 7 and are symmetrically distributed. The upper ends of the guide rod 8 and the adjusting screw 13 are respectively fixedly connected to the lower end of the upper support 6, and the lower ends of the guide rod 8 and the adjusting screw 13 penetrate through the lower support 9 and are slidably connected to the lower support 9. The lower end of the adjusting screw 13 is threadedly installed with a rotating nut 11. The lower end of the guide rod 8 is installed with a locking mechanism 10, and the guide rod 8 penetrates through the middle of the locking mechanism 10 and is slidably connected to the locking mechanism 10.

[0023] An installation bolt 5 is installed in the upper support 6, and the installation bolt 5 penetrates through the upper support 6.

[0024] The locking mechanism 10 includes a housing 14, an adjusting bolt 15 and a clamping plate 17. A rectangular accommodating groove 16 is formed in the housing 14. A through hole 19 is formed in the middle of the upper end of the housing 14. The through hole 19 penetrates through the housing 14 and communicates with the accommodating groove 16. The guide rod 8 passes through the through hole 19 and is slidably connected to the through hole 19. There are two clamping plates 17 and two adjusting bolts 15 respectively. The clamping plates 17 are symmetrically distributed in the accommodating groove 16 and are slidably connected to the accommodating groove 16. The two adjusting bolts 15 are respectively located in the middle of the two side ends of the housing 14. The adjusting bolt 15 penetrates through the housing 14 and extends into the accommodating groove 16. One end of the adjusting bolt 15 is rotatably connected to the middle of the side end of the clamping plate 17, and the adjusting bolt 15 is threadedly connected to the housing 14.

[0025] The opposite ends of the two clamping plates 17 are respectively set as arc surfaces.

[0026] Rubber pads 18 are respectively fixedly connected to the opposite ends of the two clamping plates 17, and anti-slip patterns are provided on the surfaces of the rubber pads 18 away from the clamping plates 17.

[0027] The appearance of the housing 14 is rectangular.

[0028] Working principle: When in use, by rotating the rotating nut 11, the rotating nut 11 moves on the adjusting screw 13 to push the lower support 9, changing the pre-tightening force of the helical spring 7. After the adjustment is completed, rotate the adjusting bolt 15 to make the adjusting bolt 15 drive the clamping plate 17 away from the surface of the guide rod 8, then push the locking mechanism 10 upward to make the upper end of the housing 14 closely adhere to the lower end of the lower support 9, and then rotate the adjusting bolt 15 to make the clamping plate 17 clamp the guide rod 8, thereby fixing the locking mechanism 10.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can also be made without departing from the gist of the present invention.

Claims

1. An automobile suspension spring device, comprising: A lower swing arm (1), a universal steering knuckle (2), a support rod (3) and a shock absorbing mechanism (4), characterized in that the universal steering knuckle (2) is mounted on the lower swing arm (1), the support rod (3) is mounted on the universal steering knuckle (2), the shock absorbing mechanism (4) is fixedly connected to the upper end of the support rod (3), and the support rod (3) is located in the middle of the shock absorbing mechanism (4); The shock absorbing mechanism (4) comprises an upper support (6), a coil spring (7), a lower support (9) and a shock absorber (12); the lower support (9) is fixedly connected to the upper end of the support rod (3), and the support rod (3) is located in the middle of the lower end of the lower support (9); the shock absorber (12) is fixedly connected to the middle of the upper end of the lower support (9); the upper support (6) is fixedly connected to the upper end of the shock absorber (12); the coil spring (7) is arranged at the outer end of the shock absorber (12), and the shock absorber (12) passes through the middle of the coil spring (7); the two ends of the coil spring (7) are fixedly connected to the lower support (9) and the upper support (6) respectively; the upper support (6) A guide rod (8) and an adjusting screw (13) are provided between the upper support (6) and the lower support (9), and the guide rod (8) and the adjusting screw (13) are located in the coil spring (7) and are symmetrically distributed. The upper ends of the guide rod (8) and the adjusting screw (13) are respectively fixedly connected to the lower end of the upper support (6), and the lower ends of the guide rod (8) and the adjusting screw (13) penetrate the lower support (9) and are slidably connected to the lower support (9). A rotating nut (11) is threadedly installed on the lower end of the adjusting screw (13). A locking mechanism (10) is installed on the lower end of the guide rod (8), and the guide rod (8) penetrates the middle part of the locking mechanism (10) and is slidably connected to the locking mechanism (10).

2. An automobile suspension spring device as claimed in claim 1, characterized in that: A mounting bolt (5) is installed in the upper support (6), and the mounting bolt (5) passes through the upper support (6).

3. The automobile suspension spring device according to claim 1, characterized in that: The locking mechanism (10) comprises a shell (14), an adjusting bolt (15) and a clamping plate (17). A rectangular receiving groove (16) is provided in the shell (14). A through hole (19) is provided in the middle of the upper end of the shell (14). The through hole (19) passes through the shell (14) and is communicated with the receiving groove (16). The guide rod (8) passes through the through hole (19) and is slidably connected with the through hole (19). Two clamping plates (17) and two adjusting bolts (15) are respectively provided. The clamping plates (17) are symmetrically distributed in the receiving groove (16) and are slidably connected with the receiving groove (16). The two adjusting bolts (15) are respectively located in the middle of both side ends of the shell (14). The adjusting bolt (15) passes through the shell (14) and extends into the receiving groove (16). One end of the adjusting bolt (15) is rotatably connected to the middle of the side end of the clamping plate (17), and the adjusting bolt (15) is threadedly connected to the shell (14).

4. An automobile suspension spring device as claimed in claim 3, characterized in that: The opposite ends of the two clamping plates (17) are respectively configured as arc surfaces.

5. The automobile suspension spring device according to claim 3, characterized in that: The opposite ends of the two clamping plates (17) are respectively fixedly connected with rubber pads (18), and the surfaces of the rubber pads (18) away from the clamping plates (17) are provided with anti-slip patterns.

6. The automobile suspension spring device according to claim 3, characterized in that: The shell (14) has a rectangular appearance.

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