Lower support of Macpherson type shock absorber

Abstract

The utility model discloses a Macpherson type shock absorber lower support which comprises a Macpherson type shock absorber assembly, a frame assembly and a shock absorber lower installation support body, the shock absorber lower installation support body is installed at the lower end of the Macpherson type shock absorber assembly, and the lower end of the shock absorber lower installation support body is of a special-shaped structure with a notch locally. Two circular mounting holes are formed in the shock absorber lower mounting support body, an oil storage barrel is further arranged below the Macpherson type shock absorber assembly, a piston rod is mounted in the oil storage barrel in an inserted mode, and an upper supporting piece is arranged above the Macpherson type shock absorber assembly. According to the McPherson type shock absorber lower support, on the basis of an existing shock absorber lower support, by adjusting the support structure and not changing the position of a mounting hole, the support is adjusted to be in a special shape and provided with a local notch from a flush structure, and therefore under the dynamic condition of a vehicle, a gap between a shock absorber and a steering pull rod is effectively enlarged, and dynamic interference can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of MacPherson type shock absorbers, in particular to a MacPherson type shock absorber lower bracket. Background Art

[0002] The McPherson shock absorber is a crucial component of the McPherson independent suspension. This suspension system is one of the most widely used front suspension designs for cars in the world, especially for small to medium-sized passenger cars. The McPherson shock absorber is mainly composed of a strut shock absorber, a coil spring, an A-shaped lower arm, a lateral stabilizer bar, etc. When the vehicle encounters bumps on the road during driving, the wheel transmits the impact force to the coil spring through the lower arm. The spring is compressed and absorbs energy, and then rebounds to help the vehicle body restore a stable posture. The shock absorber plays a damping role in this process, consuming vibration energy through the flow resistance of the internal oil, and suppressing the repeated bouncing of the spring, thereby providing a comfortable driving experience and stable driving performance. During the steering process, the wheel rotates around the shock absorber strut (i.e., the kingpin). Due to the compact structure of the McPherson suspension, the kingpin position and wheel alignment angle will change as the wheel bounces up and down, but this change is relatively small, ensuring good driving stability.

[0003] The lower bracket of the existing McPherson shock absorber adopts a bracket structure with a flush lower end. In actual dynamic verification, the lower bracket of the shock absorber and the steering rod are prone to dynamic interference. It is also necessary to take measures to increase the dynamic clearance between the lower end of the shock absorber and the steering rod. For example, an improved shock absorber bracket disclosed in the existing publication number CN204236168U adopts a flush structure at the lower end of the bracket structure. Another example is a shock absorber lower bracket disclosed in the publication number CN211844005U. In this solution, a coil ear is set on the inclined plate to avoid interference between the shock absorber and the straight pull rod. This not only adds components but also increases costs. Utility Model Content

[0004] The purpose of the utility model is to provide a McPherson shock absorber lower bracket to solve the problem proposed in the above background technology that the lower bracket of the McPherson shock absorber currently on the market adopts a bracket structure with a flush lower end. In actual dynamic verification, the lower bracket of the shock absorber and the steering rod are prone to dynamic interference, and it is necessary to take measures to increase the dynamic clearance between the lower end of the shock absorber and the steering rod.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a McPherson shock absorber lower bracket, comprising a McPherson shock absorber assembly, a frame assembly and a shock absorber lower mounting bracket body, the shock absorber lower mounting bracket body is installed at the lower end of the McPherson shock absorber assembly, the lower end of the shock absorber lower mounting bracket body is a special-shaped structure with a partial notch, and the shock absorber lower mounting bracket body is provided with two circular mounting holes, an oil storage cylinder is also provided below the McPherson shock absorber assembly, and a piston rod is inserted and installed in the oil storage cylinder, an upper support member is provided above the McPherson shock absorber assembly, and a spring upper tray and a spring lower tray are respectively installed on the upper support member and the oil storage cylinder, a spring is connected between the spring upper tray and the spring lower tray, and a telescopic dust cover fixed between the spring upper tray and the spring lower tray is provided on the inner side of the spring.

[0006] Preferably, a shock absorber mounting assembly is provided at the upper end of the McPherson type shock absorber assembly, and the McPherson type shock absorber assembly is screwed and fixed to the frame assembly by the shock absorber mounting assembly.

[0007] Preferably, a steering knuckle is provided below the McPherson shock absorber assembly, and a hexagonal flange bolt penetrates between the steering knuckle and the mounting hole of the shock absorber lower mounting bracket body.

[0008] Preferably, a shock absorber steering rod is further provided below the McPherson shock absorber assembly, and the inner side of the shock absorber steering rod is connected to the steering gear, and a locking nut penetrates between the outer side of the shock absorber steering rod and the steering knuckle.

[0009] Preferably, the shock absorber lower mounting bracket body is integrally cast, and the notch portion of the lower end of the shock absorber lower mounting bracket body is below the oil storage cylinder, and the notch portion of the shock absorber lower mounting bracket body is an arc-shaped structure.

[0010] Preferably, the mounting hole on the shock absorber lower mounting bracket body is in an originally opened position.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the McPherson shock absorber lower bracket adjusts the bracket structure on the basis of the existing shock absorber lower bracket without changing the position of the mounting hole, and adjusts the bracket from a flush structure to a special-shaped structure with a partial notch, so that in the dynamic situation of the vehicle, the gap between the shock absorber and the steering rod is effectively increased, and dynamic interference can be effectively avoided. The McPherson shock absorber lower bracket body is plugged and fixed with the oil storage cylinder, and the notch portion of the lower bracket is set below the oil storage cylinder, and the notch portion is avoided from the mounting hole position to ensure the stability of the lower bracket body structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following are drawings of exemplary embodiments of the present invention, in which the same or similar reference numerals are used to represent the same or similar elements.

[0013] Figure 1 It is a schematic diagram of the structure in which the lower end of the existing McPherson shock absorber bracket is flush with the shock absorber body;

[0014] Figure 2 This is a schematic diagram of the internal structure of the lower bracket of the McPherson shock absorber of the utility model;

[0015] Figure 3 This is a schematic diagram of the external structure of the lower bracket of the McPherson shock absorber of the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the connection structure between the lower bracket body of the McPherson shock absorber and the frame assembly.

[0017] Figure numerals: 1. McPherson shock absorber assembly; 101. upper support member; 102. spring upper tray; 103. spring; 104. piston rod; 105. spring lower tray; 106. oil reservoir; 107. shock absorber lower mounting bracket body; 108. telescopic dust cover; 2. frame assembly; 3. hexagonal flange bolt; 4. steering knuckle; 5. shock absorber steering rod; 6. locking nut; 7. shock absorber mounting assembly. DETAILED DESCRIPTION

[0018] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0019] In the present utility model, the term "and / or" is intended to cover all possible combinations and sub-combinations of the listed elements, including any one of the elements listed separately, any sub-combination or all elements, without excluding other elements. Unless otherwise specified, the terms "first", "second", etc. are used to describe various elements without intending to limit the positional relationship, timing relationship or importance relationship of these elements. Such terms are only used to distinguish one element from another. Unless otherwise specified, the orientation or positional relationship indicated by the terms "front, back, up, down, left, right", etc. is usually based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience and simplification of description, and cannot be understood as limiting the scope of protection of the present utility model.

[0020] See also Figure 1-4The utility model provides a technical solution: a McPherson shock absorber lower bracket, including a McPherson shock absorber assembly 1, a frame assembly 2 and a shock absorber lower mounting bracket body 107, the shock absorber lower mounting bracket body 107 is installed at the lower end of the McPherson shock absorber assembly 1, a shock absorber mounting component 7 is provided at the upper end of the McPherson shock absorber assembly 1, and the McPherson shock absorber assembly 1 is screwed and fixed to the frame assembly 2 by the shock absorber mounting component 7, this structure enables the McPherson shock absorber assembly 1 to be firmly mounted on the frame assembly 2 through the shock absorber mounting component 7, ensuring the reliable use of the McPherson shock absorber assembly 1, a steering knuckle 4 is provided below the McPherson shock absorber assembly 1, and the steering knuckle 4 and the shock absorber lower mounting bracket body 107 are connected. A hexagonal flange bolt 3 is passed through between the mounting holes. This structure allows the McPherson shock absorber assembly 1 to be fixed to the steering knuckle 4 through the shock absorber lower mounting bracket body 107 at the bottom. The lower end of the shock absorber lower mounting bracket body 107 is a special-shaped structure with a partial notch, and the shock absorber lower mounting bracket body 107 is provided with two circular mounting holes. A shock absorber steering rod 5 is also provided below the McPherson shock absorber assembly 1, and the inner side of the shock absorber steering rod 5 is connected to the steering gear, and a locking nut 6 is passed through the outer side of the shock absorber steering rod 5 and the steering knuckle 4. This structure allows the McPherson shock absorber assembly 1 to be fixed relative to the shock absorber steering rod 5 through the steering knuckle 4, and the shock absorber steering rod 5 and the McPherson The McPherson type shock absorber assembly 1 has a relative motion relationship, the shock absorber lower mounting bracket body 107 is integrally cast, and the notch portion of the lower end of the shock absorber lower mounting bracket body 107 is located below the oil storage cylinder 106, and the notch portion of the shock absorber lower mounting bracket body 107 is an arc structure, which ensures the stability of the structure of the shock absorber lower mounting bracket body 107. The McPherson type shock absorber assembly 1 can increase the gap between the lower side of the McPherson type shock absorber assembly 1 and the shock absorber steering rod 5 through the notch structure at the bottom of the shock absorber lower mounting bracket body 107. In the case of vehicle dynamics, dynamic interference can be effectively avoided, the addition of other additional components can be reduced, the cost increase can be avoided, and the service life of each component can be extended. An oil reservoir 106 is further provided at the bottom of the McPherson type shock absorber assembly 1, and the mounting hole on the shock absorber lower mounting bracket body 107 is in the original opening position. This structure allows the shock absorber lower mounting bracket body 107 to be normally connected and fixed, and a piston rod 104 is inserted and installed in the oil reservoir 106. An upper support member 101 is provided above the McPherson type shock absorber assembly 1, and a spring upper tray 102 and a spring lower tray 105 are respectively installed on the upper support member 101 and the oil reservoir 106, a spring 103 is connected between the spring upper tray 102 and the spring lower tray 105, and a telescopic dust cover 108 fixed between the spring upper tray 102 and the spring lower tray 105 is provided on the inner side of the spring 103.

[0021] Working principle: When using the McPherson shock absorber lower bracket, first, the McPherson shock absorber assembly 1 is screwed and fixed to the frame assembly 2 through the shock absorber mounting assembly 7, and then the McPherson shock absorber assembly 1 is connected to the steering knuckle 4 through the mounting hole of the shock absorber lower mounting bracket body 107 through the hexagonal flange bolt 3, the shock absorber steering rod 5 is connected to the steering gear on the inside, and is connected to the steering knuckle 4 through the locking nut 6 on the outside, so that the shock absorber steering rod 5 and the McPherson shock absorber assembly 1 are connected in relative motion. When the McPherson shock absorber assembly 1 is working, the upper support 101 and the shock absorber lower mounting bracket The main body 107 absorbs and consumes the impact energy of the wheel through relative movement between the piston rod 104 and the oil storage cylinder 106, and compresses the spring 103 for shock absorption. The spring upper tray 102 and the spring lower tray 105 play a positioning role for the spring 103. The telescopic dust cover 108 plays a dust-proof protection role for the relative moving section between the piston rod 104 and the oil storage cylinder 106. The shock absorber lower mounting bracket main body 107 has a special-shaped structure with a notch at the lower end, which increases the distance between the McPherson shock absorber assembly 1 and the shock absorber steering rod 5, reduces dynamic interference, and thus completes a series of tasks.

[0022] It should be noted that the utility model (e.g., utility model concepts, etc.) has been described in the specification of this patent document and / or illustrated in the drawings according to the exemplary embodiments; the embodiments of the utility model are presented only by way of example and are not intended to limit the scope of the utility model. The structure and / or arrangement of the elements of the utility model concepts embodied in the utility model as described in the specification and / or illustrated in the drawings are only illustrative. Although the exemplary embodiments of the utility model have been described in detail in this patent document, it is easy for a person of ordinary skill in the art to understand that equivalents, modifications, changes, etc. of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the utility model; all of these subject matters (e.g., modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the utility model. It should also be noted that various / other modifications, changes, substitutions, equivalents, changes, omissions, etc. can be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concepts, designs, structures, devices, forms, assemblies, constructions, means, functions, systems, processes / methods, steps, the order of process / method steps, operations, operating conditions, performance, materials, compositions, combinations, etc.). ) without departing from the scope of the present invention; all of these subjects (such as modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter described in the specification and / or drawings of this patent document (such as details, structures, functions, materials, behaviors, steps, sequences, systems, results, etc.). Considering that the claims of this patent document will be appropriately interpreted as covering the full scope of the subject matter of the present invention (for example, including any and all such modifications, changes, embodiments, combinations, equivalents, etc.); it should be understood that the terms used in this patent document are intended to provide a description of the subject matter of the exemplary embodiments, rather than as a limitation on the scope of the present invention.

[0023] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A MacPherson type shock absorber lower bracket, comprising a MacPherson type shock absorber assembly (1), a vehicle frame assembly (2) and a shock absorber lower mounting bracket body (107), wherein the shock absorber lower mounting bracket body (107) is mounted on the lower end of the MacPherson type shock absorber assembly (1), and is characterized in that: The lower end of the shock absorber lower mounting bracket body (107) is a special-shaped structure with a partial notch, and the shock absorber lower mounting bracket body (107) is provided with two circular mounting holes. An oil storage cylinder (106) is also provided below the McPherson shock absorber assembly (1), and a piston rod (104) is inserted and installed in the oil storage cylinder (106). An upper support member (101) is provided above the McPherson shock absorber assembly (1), and a spring upper tray (102) and a spring lower tray (105) are respectively installed on the upper support member (101) and the oil storage cylinder (106). A spring (103) is connected between the spring upper tray (102) and the spring lower tray (105), and a telescopic dust cover (108) fixed between the spring upper tray (102) and the spring lower tray (105) is provided on the inner side of the spring (103).

2. The McPherson shock absorber lower bracket according to claim 1, characterized in that: A shock absorber mounting assembly (7) is provided at the upper end of the McPherson type shock absorber assembly (1), and the McPherson type shock absorber assembly (1) is screwed and fixed to the vehicle frame assembly (2) by the shock absorber mounting assembly (7).

3. The McPherson shock absorber lower bracket according to claim 1, characterized in that: A steering knuckle (4) is provided below the McPherson shock absorber assembly (1), and a hexagonal flange bolt (3) penetrates between the steering knuckle (4) and the mounting hole of the shock absorber lower mounting bracket body (107).

4. The McPherson shock absorber lower bracket according to claim 3, characterized in that: A shock absorber steering tie rod (5) is also provided below the McPherson shock absorber assembly (1), and the inner side of the shock absorber steering tie rod (5) is connected to the steering gear, and a locking nut (6) passes through the outer side of the shock absorber steering tie rod (5) and the steering knuckle (4).

5. The McPherson shock absorber lower bracket according to claim 1, characterized in that: The shock absorber lower mounting bracket body (107) is integrally cast, and the notch portion at the lower end of the shock absorber lower mounting bracket body (107) is located below the oil storage cylinder (106), and the notch portion of the shock absorber lower mounting bracket body (107) is an arc-shaped structure.

6. The McPherson shock absorber lower bracket according to claim 1, characterized in that: The mounting hole on the shock absorber lower mounting bracket body (107) is in an original opening position.

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