Steel plate spring for automobile

Abstract

The utility model relates to the technical field of automobile accessories, in particular to a steel plate spring for an automobile, which comprises a main steel plate and an auxiliary steel plate, a positioning bolt is fixedly connected to the top of the main steel plate in a penetrating manner, the bottom end of the positioning bolt penetrates to the bottom of the auxiliary steel plate, and grooves are formed in two sides of the top of the auxiliary steel plate. A groove is formed in the top of the main steel plate, a sliding plate is placed in an inner cavity of the groove, balls are embedded in the top of the sliding plate, limiting clamps are riveted to the two sides of the top of the main steel plate, positioning plates are movably connected into the limiting clamps, and through holes are formed in the front side and the rear side of the bottom of each positioning plate. Through cooperation of the grooves, the sliding plates and the balls, the steel plate spring has the advantage of a sliding function, when the steel plate spring deforms in the using process, friction between steel plates can be reduced under the action of the balls, the steel plates are smoother, the abrasion phenomenon is avoided, and then the service life of the steel plate spring is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a leaf spring used for automobiles. Background Art

[0002] Leaf spring is the most widely used elastic element in automobile suspension. It is an elastic beam of approximately equal strength composed of several alloy spring leaves of equal width but unequal length, and equal or unequal thickness.

[0003] After searching, the patent number is CN218347835U, and the name is a utility model of a multi-stage shock-absorbing leaf spring for automobiles, including several main leaf springs and several auxiliary leaf springs. Through research and analysis, it is found that although during use, when the auxiliary leaf spring is subjected to external force at a certain angle, it can provide auxiliary shock-absorbing components and transfer kinetic energy vertically to the main leaf spring, etc., the following disadvantages still exist to a certain extent.

[0004] For example, it does not have a sliding function. During the use of the above-mentioned leaf spring, when the leaf spring is deformed under force, friction between adjacent steel plates is likely to occur. After long-term use, the surface of the steel plate is prone to wear, which in turn affects the shock absorption effect and the service life of the steel plate. In order to solve the above technical problems, we have designed a leaf spring for automobiles. Utility Model Content

[0005] The utility model aims to provide a leaf spring for automobiles, which has the advantages of sliding function and adjustment function, and solves the problem that the existing leaf springs are prone to wear between the steel plates during use and it is inconvenient for users to adjust the limit spacing of the limit clamps.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leaf spring for an automobile, comprising a main steel plate and a secondary steel plate, the top of the main steel plate being penetrated and fixedly connected with a positioning bolt, the bottom end of the positioning bolt penetrates to the bottom of the secondary steel plate, grooves are provided on both sides of the top of the secondary steel plate, a slide plate is placed in the inner cavity of the groove, a ball bearing is inlaid on the top of the slide plate, limiting clamps are riveted on both sides of the top of the main steel plate, a positioning plate is movably connected inside the limiting clamp, through holes are provided on the front and rear sides of the bottom of the positioning plate, the inner wall of the through hole is fixedly connected to the limiting mechanism, and the bottom of the positioning plate is threaded with an adjustment mechanism.

[0007] Preferably, the limiting mechanism includes a spring, the opposite side of the spring is fixedly connected to the inner wall of the through hole, the opposite side of the spring is riveted with a movable plate, the opposite side of the movable plate is riveted with a limiting plate, the opposite side of the limiting plate passes through a limiting clamp, and a groove is provided at the bottom of the movable plate.

[0008] Preferably, the adjustment mechanism comprises a screw rod, the screw rod is threadedly connected to the positioning plate, and the top end of the screw rod is movably connected to the adjustment plate via a bearing.

[0009] Preferably, guide rods are riveted to the front and rear sides of the bottom of the adjustment plate, and the bottom ends of the guide rods penetrate to the bottom of the positioning plate.

[0010] Preferably, there are several auxiliary steel plates, and both the main steel plate and the auxiliary steel plates are arc-shaped in design.

[0011] Preferably, there are several balls, and the balls are arranged at equal distances.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model has the advantage of sliding function through the cooperation of grooves, slide plates and balls. When the leaf spring is deformed during use, the friction between the steel plates can be reduced under the action of the balls, making the steel plates smoother and preventing wear, thereby increasing their service life.

[0014] 2. The utility model has the advantage of adjustment function through the cooperation of the limit clamp, the positioning plate, the through hole, the limit mechanism and the adjustment mechanism. When the limit spacing of the limit clamp needs to be adjusted, the screw rod is rotated, and the screw rod is moved upward through the threaded connection with the positioning plate. The screw rod drives the adjustment plate to move upward, thereby adjusting the limit spacing, making the steel plates tighter and preventing looseness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2 This is a three-dimensional diagram of the limit clamp structure of the utility model;

[0017] Figure 3 It is a three-dimensional bottom view of the local structure of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the local structure of the utility model;

[0019] Figure 5 This is a three-dimensional diagram of the auxiliary steel plate structure of the utility model.

[0020] In the figure: 1. main steel plate; 2. auxiliary steel plate; 3. positioning bolt; 4. groove; 5. slide plate; 6. ball bearing; 7. limit clamp; 8. positioning plate; 9. through hole; 10. limit mechanism; 11. adjustment mechanism; 12. spring; 13. movable plate; 14. limit plate; 15. screw rod; 16. adjustment plate; 17. guide rod. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 5 A leaf spring for an automobile comprises a main steel plate 1 and an auxiliary steel plate 2. A positioning bolt 3 is passed through and fixedly connected to the top of the main steel plate 1. The bottom end of the positioning bolt 3 passes through the bottom of the auxiliary steel plate 2. Grooves 4 are provided on both sides of the top of the auxiliary steel plate 2. A slide plate 5 is placed in the inner cavity of the groove 4. A ball 6 is inlaid and installed on the top of the slide plate 5. Limiting clips 7 are riveted on both sides of the top of the main steel plate 1. A positioning plate 8 is movably connected inside the limiting clip 7. Through holes 9 are provided on the front and rear sides of the bottom of the positioning plate 8. A limiting mechanism 10 is fixedly connected to the inner wall of the through hole 9. An adjusting mechanism 11 is threadedly connected to the bottom of the positioning plate 8.

[0022] See also Figure 3 The limiting mechanism 10 includes a spring 12, and the opposite side of the spring 12 is fixedly connected to the inner wall of the through hole 9. A movable plate 13 is riveted on the opposite side of the spring 12, and a limiting plate 14 is riveted on the opposite side of the movable plate 13. The opposite side of the limiting plate 14 passes through the limiting clamp 7. A drawing groove is provided at the bottom of the movable plate 13. By setting the drawing groove, it is convenient for the user to pull the movable plate 13. When the movable plate 13 is disassembled, the movable plate 13 is pulled through the drawing groove, and the movable plate 13 compresses the spring 12 and then drives the limiting plate 14 to move, thereby releasing the limit on the movable plate 13, completing the disassembly work, and making the disassembly more efficient.

[0023] See also Figure 3 The adjusting mechanism 11 includes a screw rod 15, which is threadedly connected to the positioning plate 8. The top of the screw rod 15 is movably connected to an adjusting plate 16 through a bearing. By setting the screw rod 15, the position of the adjusting plate 16 can be adjusted, and then the steel plates can be limited and fixed.

[0024] See also Figure 3 The front and rear sides of the bottom of the adjustment plate 16 are riveted with guide rods 17, and the bottom end of the guide rod 17 penetrates to the bottom of the positioning plate 8. By setting the guide rod 17, the adjustment plate 16 can be guided so that it will not shake.

[0025] See also Figure 1 The number of auxiliary steel plates 2 is several, and both the main steel plate 1 and the auxiliary steel plate 2 are arc-shaped designs.

[0026] See also Figure 4The number of balls 6 is several, and the balls 6 are arranged at equal distances. By setting the balls 6, the steel plates can be slidably connected to reduce friction, thereby increasing the service life of the steel plates.

[0027] When in use, the slide plate 5 is placed in the inner cavity of the groove 4, and when the auxiliary steel plate 2 is placed at the bottom of the main steel plate 1, the main steel plate 1 and the auxiliary steel plate 2 are connected and fixed by the positioning bolts 3, and then the groove is pulled, and the groove drives the movable plate 13 and the limit plate 14 to move, and then the positioning plate 8 is placed inside the limit clamp 7. After being placed in a suitable position, the groove is released, and the limit plate 14 begins to reset under the action of the spring 12, and the limit plate 14 moves to the inside of the rectangular hole opened on the surface of the limit clamp 7, thereby completing the limitation of the positioning plate 8. When the limit spacing needs to be adjusted, the screw rod 15 is rotated, and the screw rod 15 is threadedly connected with the positioning plate 8 to move the screw rod 15 upward, and the screw rod 15 drives the adjustment plate 16 to move upward, thereby adjusting the limit spacing. When the steel plate is deformed under force, the friction can be reduced under the action of the ball 6, so that no wear occurs between the steel plates, thereby improving the service life of the steel plates.

[0028] In summary: the leaf spring for automobiles, through the cooperation of the groove 4, the slide plate 5, the ball 6, the limit clamp 7, the positioning plate 8, the through hole 9, the limit mechanism 10 and the adjustment mechanism 11, solves the problem that the existing leaf springs are prone to wear between the steel plates during use, and it is inconvenient for the user to adjust the limit spacing of the limit clamps.

Claims

1. A leaf spring for an automobile, comprising a main leaf (1) and a secondary leaf (2), characterized in that: A positioning bolt (3) is fixedly connected to the top of the main steel plate (1), and the bottom end of the positioning bolt (3) passes through the bottom of the auxiliary steel plate (2). Grooves (4) are provided on both sides of the top of the auxiliary steel plate (2), and a slide plate (5) is placed in the inner cavity of the groove (4). A ball (6) is embedded and installed on the top of the slide plate (5). Limiting clamps (7) are riveted on both sides of the top of the main steel plate (1), and a positioning plate (8) is movably connected inside the limiting clamp (7). Through holes (9) are provided on the front and rear sides of the bottom of the positioning plate (8), and a limiting mechanism (10) is fixedly connected to the inner wall of the through hole (9). An adjustment mechanism (11) is threadedly connected to the bottom of the positioning plate (8).

2. A leaf spring for a vehicle according to claim 1, characterized in that: The limiting mechanism (10) comprises a spring (12), the opposite side of the spring (12) is fixedly connected to the inner wall of the through hole (9), the opposite side of the spring (12) is riveted with a movable plate (13), the opposite side of the movable plate (13) is riveted with a limiting plate (14), the opposite side of the limiting plate (14) passes through the limiting clamp (7), and a groove is provided at the bottom of the movable plate (13).

3. A leaf spring for a vehicle according to claim 1, characterized in that: The adjusting mechanism (11) comprises a screw rod (15), the screw rod (15) is threadedly connected to the positioning plate (8), and the top end of the screw rod (15) is movably connected to the adjusting plate (16) via a bearing.

4. A leaf spring for automobiles according to claim 3, characterized in that: The front and rear sides of the bottom of the adjustment plate (16) are riveted with guide rods (17), and the bottom end of the guide rod (17) penetrates to the bottom of the positioning plate (8).

5. The leaf spring for automobile according to claim 1, characterized in that: The number of the auxiliary steel plates (2) is several, and both the main steel plate (1) and the auxiliary steel plates (2) are of arc-shaped design.

6. A leaf spring for automobiles according to claim 1, characterized in that: The number of the balls (6) is several, and the balls (6) are arranged at equal distances.

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