Anti-loose automobile steel plate spring suspension

Abstract

The utility model relates to the field of steel plate springs, and discloses an anti-loose automobile steel plate spring suspension which comprises a steel plate spring body, a top limiting plate is attached to the middle of the top end of the steel plate spring body, a positioning column is inserted into the middle of the steel plate spring body in a penetrating mode, and a buffering elastic plate is attached to the bottom end of the steel plate spring body. A plurality of fixing notches are formed in the arc-shaped interior of the bottom of the buffering elastic plate, a supporting abutting block is attached to the arc-shaped interior of the buffering elastic plate, fixing rods are fixedly connected to the two sides of the top end of the supporting abutting block, and buffering assemblies are installed on the two sides of the top end of the buffering elastic plate. According to the steel plate spring, the vibration generated by the steel plate spring can be reduced, so that the vibration to the bolt is reduced, the stability is ensured, the problem that the edge of the steel plate spring is tilted due to non-uniform stress when the steel plate spring is fixed through a single bolt after being used for a long time is avoided, and the service life of the steel plate spring is further prolonged.

Description

Technical Field

[0001] The utility model relates to the field of leaf springs, in particular to an anti-loosening automobile leaf spring suspension. Background Art

[0002] Automobile leaf spring suspension is a traditional suspension system, which is mainly used to support and absorb the weight of the car. It is composed of multiple layers of metal plates stacked together. These metal plates are bent to form a spring-like structure, so it is called a leaf spring. This suspension system is widely used in the automotive industry.

[0003] After searching, a kind of automobile leaf spring suspension with announcement number CN218777377U includes a leaf spring body, an axle body, a connecting clamp and a mounting clip. A plurality of the connecting clamps are evenly spaced on the leaf spring body, and the leaf spring body is fixed to the axle body by two mounting clips. A screw is connected and fixed to the upper ends of the plurality of connecting clamps, and a first anti-loosening spring is sleeved on the outer ring of the screw. The automobile leaf spring suspension of the utility model is provided with an anti-loosening splint, an anti-loosening spring, a first anti-loosening spring and a second anti-loosening spring. Through the arrangement of the above-mentioned components and the tension characteristics of the springs, the connecting clamp, the mounting plate, the mounting clip, the mounting bolt and the fixing bolt can be subjected to the reverse tension given by their corresponding springs under the condition of the threaded screwing force, so that they can increase the screwing or installation friction, thereby achieving the purpose of preventing the bolts from loosening and avoiding the loosening of the mounting clips.

[0004] Based on the above patent, the background technology thereof mentions that since the leaf spring is the main shock-absorbing component of the automobile, the vibration amplitude of the leaf spring itself will increase accordingly. In actual use, the bolts and mounting buckles on the leaf spring will gradually age with the service life of the automobile and become loose. The existing leaf springs mostly increase the number of bolts to avoid loosening of the bolts. In this regard, in response to this technical problem, the present application proposes an anti-loosening automobile leaf spring suspension. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an anti-loosening automobile leaf spring suspension, which reduces the vibration of the bolts and increases the service life of the leaf spring.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A kind of anti-loosening automobile leaf spring suspension comprises a leaf spring body, a top limiting plate is attached to the middle part of the top end of the leaf spring body, a positioning column is inserted in the middle part of the leaf spring body, a buffer spring plate is attached to the bottom end of the leaf spring body, a plurality of fixing grooves are provided in the bottom arc-shaped interior of the buffer spring plate, a supporting block is attached to the arc-shaped interior of the buffer spring plate, fixing rods are fixedly connected to the top sides of the support block, buffer components are installed on both sides of the top end of the buffer spring plate, a bottom mounting frame is attached to the bottom end of the buffer spring plate, an axle body is nested in the bottom mounting frame, the bottom mounting frame and the buffer spring plate are fixed by a plurality of bolt assemblies, and spring plate uniform fixing assemblies are installed on both sides of the leaf spring body.

[0008] Furthermore, the spring plate uniform fixing assembly includes a limiting frame located on both sides of the outside of the leaf spring body, and limiting grooves are provided on both sides of the inside of the limiting frame. The inner side of the limiting groove is slidably connected with an extrusion fixing plate, and a fixing column is inserted into the inside of the extrusion fixing plate. The outer upper side of the fixing column passes through the top of the limiting frame and is threadedly connected with a fixing sleeve.

[0009] Furthermore, the buffer assembly includes support columns located on both sides of the top of the buffer spring plate, and buffer springs are fixedly connected to the outside of the support columns on both sides of the top of the buffer spring plate. A limiting sleeve is threadedly connected to the outer upper side of the support column, and the outer upper sides of multiple support columns respectively pass through both sides of the top limiting plate.

[0010] Furthermore, the bolt assembly includes a plurality of mounting posts inserted into the bottom mounting frame, and the outer upper sides of the mounting posts correspond to the top ends of the buffer spring plates and are threadedly connected with mounting sleeves.

[0011] Furthermore, the outside of the positioning column sequentially passes through the supporting block, the buffer spring plate, and the middle part of the leaf spring body and is threadedly connected with a positioning sleeve, and the top end of the buffer spring is respectively correspondingly fitted on both sides of the bottom end of the top limiting plate.

[0012] Furthermore, the outside of the fixing rod is correspondingly inserted into the inside of the fixing slot, and the top arc surface of the supporting block is matched with the inner arc surface of the buffer spring plate.

[0013] Furthermore, the top ends of the extrusion fixing plates are fixedly connected with fixing cushions.

[0014] Furthermore, the outside of the fixing column passes through the middle of the fixing cushion, and the top ends of the fixing cushion are respectively correspondingly attached to both sides of the bottom end of the leaf spring body.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the leaf spring is fixed by means of the leaf spring body, the top limiting plate, the positioning sleeve, the limiting sleeve, the buffer spring plate, the buffer spring, the support column, the positioning column, the positioning sleeve, the support block, the fixing rod and the fixing notch. When the spring performs buffering and shock absorption, the vibration generated by itself will be reduced, thereby reducing the vibration of the bolt and ensuring stability.

[0017] 2. In the utility model, the side of the leaf spring is fixed by the leaf spring body, the limiting frame, the fixing sleeve, the extrusion fixing plate, the fixing cushion, the limiting slide groove and the fixing column, so as to avoid the edge of the leaf spring from warping due to uneven force during long-term use when fixed by a single bolt, thereby further improving the service life of the leaf spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an overall diagram of an anti-loosening automobile leaf spring suspension proposed by the utility model;

[0019] Figure 2 This is a bottom mounting frame diagram of an anti-loosening automobile leaf spring suspension proposed by the utility model;

[0020] Figure 3 This is a disassembled diagram of the bottom mounting frame of an anti-loosening automobile leaf spring suspension proposed by the utility model;

[0021] Figure 4 A diagram of a buffer spring plate mechanism of an anti-loosening automobile leaf spring suspension proposed by the utility model;

[0022] Figure 5 This is a diagram of a limiting frame mechanism of an anti-loosening automobile leaf spring suspension proposed by the utility model;

[0023] Figure 6 This is a diagram of the main structure of a leaf spring of an anti-loosening automobile leaf spring suspension proposed by the utility model;

[0024] Figure 7 This is a disassembled diagram of a buffer spring plate of an anti-loosening automobile leaf spring suspension proposed by the utility model.

[0025] Legend:

[0026] 1. Leaf spring body; 2. Top limiting plate; 3. Positioning sleeve; 4. Positioning column; 5. Limiting sleeve; 6. Buffer spring; 7. Axle body; 8. Buffer spring plate; 9. Fixing sleeve; 10. Limiting frame; 11. Bottom mounting frame; 12. Support column; 13. Mounting column; 14. Mounting sleeve; 15. Supporting block; 16. Extrusion fixing plate; 17. Fixed cushion; 18. Limiting slide groove; 19. Fixed column; 20. Fixed rod; 21. Fixed notch. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1 , Figure 3 and Figure 7 , the utility model provides an embodiment: an anti-loosening automobile leaf spring suspension, including a leaf spring body 1, a top limiting plate 2 is attached to the middle of the top of the leaf spring body 1, a positioning column 4 is inserted in the middle of the leaf spring body 1, a buffer spring plate 8 is attached to the bottom end of the leaf spring body 1, and a plurality of fixing notches 21 are opened in the arc-shaped bottom interior of the buffer spring plate 8, a support block 15 is attached to the arc-shaped interior of the buffer spring plate 8, and the top two sides of the support block 15 are fixedly connected with fixing rods 20, and buffer components are installed on both sides of the top of the buffer spring plate 8, and a bottom mounting frame 11 is attached to the bottom end of the buffer spring plate 8, and an axle body 7 is nested in the bottom mounting frame 11, and the bottom mounting frame 11 is fixed to the buffer spring plate 8 by a plurality of bolt assemblies, and spring plate uniform fixing assemblies are installed on both sides of the leaf spring body 1, and the buffer assembly includes a positioning The support columns 12 on both sides of the top of the buffer spring plate 8, the top sides of the buffer spring plate 8 are located on the outside of the support columns 12 and are fixedly connected with buffer springs 6, the outer upper sides of the support columns 12 are threadedly connected with a limiting sleeve 5, and the outer upper sides of multiple support columns 12 respectively penetrate the two sides of the top limiting plate 2, and the bolt assembly includes multiple mounting columns 13 inserted into the bottom mounting frame 11, and the outer upper sides of the mounting columns 13 respectively correspond to the top of the buffer spring plate 8 and are threadedly connected with mounting sleeves 14, and the outer side of the positioning column 4 sequentially penetrates the support block 15, the buffer spring plate 8, and the middle part of the leaf spring body 1 and is threadedly connected with the positioning sleeve 3, the top ends of the buffer springs 6 are respectively correspondingly fitted on both sides of the bottom end of the top limiting plate 2, and the outer sides of the fixing rods 20 are respectively correspondingly inserted into the inside of the fixing notches 21, and the top arc surface of the support block 15 is adapted to the inner arc surface of the buffer spring plate 8;

[0029] The top limiting plate 2 is fitted to the top of the leaf spring body 1, the two fixing rods 20 at the top of the support block 15 are inserted into the inside of the fixing notch 21, the positioning column 4 is passed through the support block 15, the buffer spring plate 8, the middle part of the leaf spring body 1 in sequence, and penetrates the middle part of the top limiting plate 2, and the positioning sleeve 3 is in contact with the external thread of the positioning column 4, so as to fix multiple components. At this time, the support columns 12 are respectively inserted on both sides of the top limiting plate 2, and the buffer spring 6 is squeezed at the bottom of the top limiting plate 2, and the limiting sleeve 5 is respectively threadedly connected to the outer upper side of the support column 12, and the limiting sleeve 5 and the support The column 12 generates a pulling force on it, thereby fixing it, and the axle body 7 is placed inside the bottom mounting frame 11, and is fixed and installed through the connection between multiple mounting columns 13 and mounting sleeves 14. When the axle body 7 generates a downward pressure, the force is transmitted to the top of the buffer spring plate 8, and the top arc surface of the buffer spring plate 8 contacts the bottom of the leaf spring body 1, so that a certain upward thrust is generated on both sides of the buffer spring plate 8. The force contacts the buffer spring 6 and is buffered to a certain extent, thereby reducing the vibration of multiple fixing bolts, and the vibration generated by itself will be reduced, thereby reducing the vibration of the bolts and ensuring stability.

[0030] Reference Figure 1 , Figure 5 and Figure 6 The spring plate uniform fixing assembly includes a limiting frame 10 located on both sides of the outside of the leaf spring body 1, and both sides of the inside of the limiting frame 10 are provided with limiting slide grooves 18, and the inner side of the limiting slide groove 18 is slidably connected with an extrusion fixing plate 16, and a fixing column 19 is inserted into the inside of the extrusion fixing plate 16. The upper side of the outer side of the fixing column 19 passes through the top of the limiting frame 10 and is threadedly connected with a fixing sleeve 9, and the top of the extrusion fixing plate 16 is fixedly connected with a fixing cushion 17, and the outer side of the fixing column 19 passes through the middle of the fixing cushion 17, and the top of the fixing cushion 17 is respectively correspondingly attached to both sides of the bottom end of the leaf spring body 1;

[0031] The limiting frames 10 on both sides respectively frame the two sides of the leaf spring body 1, slide the protrusions on both sides of the extrusion fixing plate 16 into the interior of the limiting slide groove 18, and lift the extrusion fixing plate 16 to the upward side. At this time, the fixing column 19 passes through the extrusion fixing plate 16, the fixing cushion 17, the interior of the leaf spring body 1 and the top of the limiting frame 10 to be fixed with the fixing sleeve 9. The threaded connection between the fixing sleeve 9 and the fixing column 19 generates a pulling force on the side of the leaf spring body 1, and the extrusion fixing plate 16 is uniformly stressed on the side of the leaf spring body 1, so as to achieve a stable installation, and avoid the edge of the leaf spring from being warped due to uneven stress when fixed by a single bolt for a long time, thereby further improving the service life of the leaf spring.

[0032] Working principle: fit the top limiting plate 2 to the top of the leaf spring body 1, insert the two fixing rods 20 at the top of the support block 15 into the inside of the fixing notch 21, and pass the positioning column 4 through the support block 15, the buffer spring plate 8, and the middle of the leaf spring body 1 in sequence, and pass through the middle of the top limiting plate 2, and contact the external threads of the positioning sleeve 3 and the positioning column 4, so as to fix multiple components. At this time, the support columns 12 are respectively inserted on both sides of the top limiting plate 2, and the buffer spring 6 is squeezed on the bottom of the top limiting plate 2, and the limiting sleeves 5 are respectively threadedly connected to the outside of the support columns 12 On the side, the limiting sleeve 5 and the support column 12 generate pulling force on it, so as to fix it, and the axle body 7 is placed inside the bottom mounting frame 11, and fixed and installed through the connection between multiple mounting columns 13 and the mounting sleeve 14, and the limiting frames 10 on both sides respectively frame the two sides of the leaf spring body 1, and the protrusions on both sides of the extrusion fixing plate 16 are slid into the interior of the limiting slide groove 18, and the extrusion fixing plate 16 is lifted to the upper side. At this time, the fixing column 19 passes through the extrusion fixing plate 16, the fixing cushion 17, the interior of the leaf spring body 1 and passes through the top of the limiting frame 10 to be fixed to the fixing sleeve 9.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-loosening automobile leaf spring suspension, comprising a leaf spring body (1), characterized in that: A top limiting plate (2) is attached to the middle of the top of the leaf spring body (1), a positioning column (4) is inserted into the middle of the leaf spring body (1), a buffer spring plate (8) is attached to the bottom of the leaf spring body (1), a plurality of fixing notches (21) are provided in the bottom arc-shaped interior of the buffer spring plate (8), a supporting block (15) is attached to the arc-shaped interior of the buffer spring plate (8), both sides of the top of the supporting block (15) are fixedly connected with fixing rods (20), both sides of the top of the buffer spring plate (8) are installed with buffer components, a bottom mounting frame (11) is attached to the bottom of the buffer spring plate (8), an axle body (7) is nested in the bottom mounting frame (11), the bottom mounting frame (11) and the buffer spring plate (8) are fixed by a plurality of bolt assemblies, and spring plate uniform fixing assemblies are installed on both sides of the leaf spring body (1).

2. The anti-loosening automobile leaf spring suspension according to claim 1, characterized in that: The spring plate uniform fixing assembly comprises a limiting frame (10) located on both sides of the outside of the leaf spring body (1), and limiting grooves (18) are provided on both sides of the inside of the limiting frame (10), and an extrusion fixing plate (16) is slidably connected to the inside of the limiting groove (18), and a fixing column (19) is inserted into the inside of the extrusion fixing plate (16), and the upper side of the outer side of the fixing column (19) passes through the top of the limiting frame (10) and is threadedly connected to a fixing sleeve (9).

3. The anti-loosening automobile leaf spring suspension according to claim 1, characterized in that: The buffer assembly comprises support columns (12) located on both sides of the top end of the buffer spring plate (8), and buffer springs (6) are fixedly connected to the outside of the support columns (12) on both sides of the top end of the buffer spring plate (8), and a limiting sleeve (5) is threadedly connected to the outer upper side of the support column (12), and the outer upper sides of multiple support columns (12) respectively penetrate the two sides of the top limiting plate (2).

4. The anti-loosening automobile leaf spring suspension according to claim 1, characterized in that: The bolt assembly comprises a plurality of mounting posts (13) inserted into the interior of the bottom mounting frame (11), and the outer upper sides of the mounting posts (13) respectively correspond to the top ends of the buffer spring plates (8) and are threadedly connected with mounting sleeves (14).

5. The anti-loosening automobile leaf spring suspension according to claim 3, characterized in that: The exterior of the positioning column (4) sequentially passes through the supporting block (15), the buffer spring plate (8), and the middle of the leaf spring body (1) and is threadedly connected with a positioning sleeve (3), and the top end of the buffer spring (6) is respectively correspondingly attached to the two sides of the bottom end of the top limiting plate (2).

6. The anti-loosening automobile leaf spring suspension according to claim 3, characterized in that: The outside of the fixing rod (20) is correspondingly inserted into the inside of the fixing notch (21), and the top arc surface of the supporting block (15) is matched with the inner arc surface of the buffer spring plate (8).

7. The anti-loosening automobile leaf spring suspension according to claim 2, characterized in that: The top ends of the extrusion fixing plates (16) are fixedly connected with fixing cushions (17).

8. The anti-loosening automobile leaf spring suspension according to claim 2, characterized in that: The outside of the fixing column (19) passes through the middle of the fixing cushion (17), and the top of the fixing cushion (17) is respectively and correspondingly attached to the two sides of the bottom end of the leaf spring body (1).

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