High-strength anti-fracture control arm

Abstract

The utility model relates to the technical field of control arms, and discloses a high-strength anti-fracture control arm which comprises metal sheets, reinforcing plates are vertically and fixedly connected in the metal sheets at equal intervals, damping assemblies used for releasing stress of the metal sheets are arranged between the metal sheets, and second connecting sheets are fixedly connected to the outer walls of the metal sheets. A second reset spring is connected into the second connecting piece in a sleeved mode, pressing sliding blocks are arranged on the two sides of the second reset spring, and through the arrangement of the damping assembly, compared with a traditional control arm, when the control arm is impacted by external force, after the control arm is affected by the external force, the control arm is not affected by the external force; the first connecting piece extrudes the first reset spring towards the second connecting piece, the first reset spring can rapidly absorb and store part of energy and convert impact force into elastic potential energy of the spring, meanwhile, the positioning block continuously extrudes the second reset spring through the connecting rod set and the pressing sliding block, and the second reset spring also plays a buffering role.

Description

Technical Field

[0001] This utility model relates to the field of control arm technology, specifically a high-strength, fracture-resistant control arm. Background Technology

[0002] The control arm, also known as the swing arm, is a key component of a car's suspension system. Its main function is to connect the car body and the wheels, and it controls the wheel's trajectory, allowing the wheels to move along a predetermined path during driving.

[0003] Traditional control arms on the market have many drawbacks and have produced a series of adverse effects. First, traditional control arms mostly rely on a single material structure to bear the force and lack internal reinforcement design, which makes them significantly weak. When faced with external forces generated by road bumps, steering and braking during vehicle operation, stress concentration is likely to occur. When subjected to large impacts, such as when the vehicle drives over large potholes or encounters a strong collision, local areas of the control arm will be subjected to excessive bending stress, which may lead to deformation or even breakage, seriously threatening vehicle driving safety and increasing the risk of accidents.

[0004] Secondly, traditional control arms typically lack buffering and stress dispersion mechanisms. In terms of shock absorption, they rely solely on limited rubber bushings or simple material elastic deformation to cope with external impacts. This makes it impossible to effectively absorb and disperse impact forces when the vehicle is traveling on complex road conditions, such as frequently passing speed bumps or potholes. A large amount of impact energy will be directly transmitted to the vehicle body, not only causing obvious bumps for the occupants and greatly reducing ride comfort, but also causing unnecessary vibrations to the vehicle body and other components, accelerating the wear and aging of the frame, suspension system, and other parts, shortening their service life, and increasing the vehicle's maintenance and repair costs.

[0005] To address this, a high-strength, fracture-resistant control arm is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a high-strength, fracture-resistant control arm to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-strength, anti-breakage control arm, comprising a metal sheet, wherein reinforcing plates are fixedly connected in a vertically equidistant arrangement inside the metal sheet, and a shock-absorbing component for releasing stress is provided between the metal sheets, wherein a second connecting piece is fixedly connected to the outer wall of the metal sheet, a second return spring is sleeved inside the second connecting piece, and pressing sliders are provided on both sides of the second return spring, and further comprising: a shock-absorbing component.

[0008] Preferably, the shock absorption assembly includes a first connecting piece, which is fixedly connected to the outer wall of the metal sheet. A positioning block is symmetrically fixedly connected to the side of the first connecting piece away from the metal sheet, and a positioning slide post is symmetrically fixedly connected to the side of the first connecting piece away from the metal sheet.

[0009] Preferably, the shock absorption assembly further includes a first return spring, which is sleeved on the outside of the positioning slide column, and a connecting rod assembly is slidably connected inside the positioning block.

[0010] Preferably, the positioning slide is slidably connected to the inside of the second connecting piece.

[0011] Preferably, one end of the first reset spring is fixedly connected to the outer wall of the first connecting piece, and the end of the first reset spring away from the first connecting piece is fixedly connected to the outer wall of the second connecting piece.

[0012] Preferably, the end of the connecting rod assembly furthest from the positioning block is rotatably connected to the inside of the pressing slider.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting up the reinforcement plate, the vertically equidistant metal plates inside the control arm enhance its strength. Traditional control arms mainly rely on their own materials and shape structure to bear the force. However, after setting up vertically equidistant metal plates inside the control arm, these metal plates are like "bones". When the control arm is subjected to external forces (such as the impact force from the road surface, the force generated when the vehicle turns or brakes), these metal plates can share the load. Because they are equidistant, the force can be evenly distributed to each metal plate, avoiding stress concentration at a certain point or in a certain area.

[0015] 2. By configuring the shock absorption components, when the control arm is subjected to external force, the first connecting plate compresses the first return spring towards the second connecting plate. Simultaneously, the positioning block continuously compresses the second return spring through the connecting rod assembly and the pressing slider. Compared to traditional control arms, when subjected to external impact, this new structure allows the first return spring to quickly absorb and store some energy, converting the impact force into the elastic potential energy of the spring. At the same time, the positioning block continuously compresses the second return spring through the connecting rod assembly and the pressing slider, which also plays a buffering role. These two springs work together from different paths and angles to cope with external forces, forming a multi-layered buffer system. This enhances the shock absorption capacity of the control arm, enabling the vehicle to more smoothly cope with various road bumps and impacts during driving. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the overall structural positional relationship of this utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram showing the positional relationship between the first connecting piece, the positioning slide post, and the second connecting piece of this utility model;

[0019] Figure 4 This is a schematic diagram showing the positional relationship between the positioning slide, the second connecting piece, and the first return spring of this utility model.

[0020] Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0021] In the picture:

[0022] Figure reference numerals: 11, metal sheet;

[0023] The shock absorption assembly includes: 21, reinforcing plate; 221, first connecting piece; 222, positioning block; 223, positioning slide; 231, second connecting piece; 232, first return spring; 233, pressing slider; 234, second return spring; 235, connecting rod assembly. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 5 An embodiment of this utility model provides a high-strength, anti-breakage control arm, comprising a metal sheet 11, with reinforcing plates 21 fixedly connected vertically at equal intervals inside the metal sheet 11, and shock-absorbing components for releasing stress between the metal sheets 11, with a second connecting piece 231 fixedly connected to the outer wall of the metal sheet 11, and a second return spring 234 sleeved inside the second connecting piece 231, and pressing sliders 233 provided on both sides of the second return spring 234, and also including a shock-absorbing component.

[0026] The shock absorption assembly includes a first connecting piece 221, which is fixedly connected to the outer wall of the metal sheet 11. A positioning block 222 is symmetrically fixedly connected to the side of the first connecting piece 221 away from the metal sheet 11, and a positioning slide post 223 is symmetrically fixedly connected to the side of the first connecting piece 221 away from the metal sheet 11.

[0027] The shock absorption assembly also includes a first return spring 232, which is sleeved on the outside of the positioning slide post 223, and a connecting rod assembly 235 is slidably connected inside the positioning block 222.

[0028] The positioning slide 223 is slidably connected to the inside of the second connecting piece 231. One end of the first return spring 232 is fixedly connected to the outer wall of the first connecting piece 221, and the other end of the first return spring 232 away from the first connecting piece 221 is fixedly connected to the outer wall of the second connecting piece 231, so that the positioning slide 223 will gradually squeeze the first return spring 232 during the movement.

[0029] The end of the connecting rod assembly 235 away from the positioning block 222 is rotatably connected to the inside of the pressing slider 233, so that the force of the first connecting piece 221 driving the positioning block 222 to move can compress the second return spring 234.

[0030] Working principle:

[0031] During operation, when the control arm is subjected to force, the first connecting piece 221 will first drive the positioning slide 223 to slide along the inside of the second connecting piece 231. At the same time, the first connecting piece 221 will gradually compress the first return spring 232 towards the second connecting piece 231. Then, the first return spring 232 can quickly absorb and store a part of the energy, converting the impact force into the elastic potential energy of the spring.

[0032] At the same time, when the first connecting piece 221 moves toward the second connecting piece 231, the first connecting piece 221 will drive the connecting rod assembly 235 to move through the positioning block 222. Then, the end of the connecting rod assembly 235 away from the positioning block 222 will drive the pressing slider 233 to compress the second return spring 234, so that the second return spring 234 also plays a buffering role.

[0033] For example, when a vehicle drives over a speed bump at high speed, a traditional control arm will transmit a large impact force directly to the vehicle body, causing severe vibration. However, with this type of control arm, the first return spring 232 and the second return spring 234 work together to effectively disperse and absorb the impact force, reducing the amplitude of vibration transmitted to the vehicle body.

[0034] Because the stress of traditional control arms is often concentrated near the stress point and the connection part, it is easy to cause local fatigue and damage. However, in the above structure, the first connecting piece 221 squeezes the first return spring 232 and the positioning block 222, the connecting rod group 235 and the pressing slider 233 squeeze the second return spring 234, so that the external force is more widely transmitted and dispersed inside the control arm.

[0035] When an external force is applied, the reaction force of the first return spring 232 is transmitted to the relevant parts of the control arm through the first connecting piece 221, and the reaction force of the second return spring 234 is also transmitted to other areas of the control arm through components such as the connecting rod assembly 235 and the positioning block 222, so that the stress is evenly distributed in multiple parts of the control arm, rather than concentrated in a few points.

[0036] Finally, by setting the reinforcing plate 21, the vertically equidistant metal plates 11 inside the control arm are arranged to enhance its strength. Traditional control arms mainly rely on their own materials and shape structure to bear the force. However, after setting the vertically equidistant metal plates 11 inside the control arm, these metal plates 11 are like "bones". When the control arm is subjected to external forces (such as the impact force from the road surface, the force generated when the vehicle turns or brakes), these metal plates 11 can share the load. Because they are equidistant, the force can be evenly distributed to each metal plate 11, avoiding stress concentration at a certain point or in a certain area.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength break-resistant control arm comprising a sheet metal (11), characterized in that: The inside of the metal sheet (11) is fixedly connected with a reinforcing plate (21) in vertical equidistant arrangement, a shock absorption assembly is arranged between the metal sheets (11) for releasing the stress thereof, the outer wall of the metal sheet (11) is fixedly connected with a second connecting sheet (231), the inside of the second connecting sheet (231) is sleeved with a second reset spring (234), the two sides of the second reset spring (234) are provided with pressing sliding blocks (233), and the shock absorption assembly is further included.

2. A high strength break resistant control arm as in claim 1, wherein: The shock absorption assembly includes a first connecting sheet (221) which is fixedly connected with the outer wall of the metal sheet (11), the side, away from the metal sheet (11), of the first connecting sheet (221) is fixedly connected with positioning blocks (222) in symmetry, and the side, away from the metal sheet (11), of the first connecting sheet (221) is fixedly connected with positioning sliding columns (223) in symmetry.

3. A high strength break resistant control arm as defined in claim 2, wherein: The shock absorption assembly further includes a first reset spring (232) which is sleeved on the outside of the positioning sliding column (223), and the inside of the positioning block (222) is slidably connected with a connecting rod group (235).

4. The high-strength break-resistant control arm of claim 2, wherein: The positioning sliding column (223) is slidably connected in the inside of the second connecting sheet (231).

5. A high strength break resistant control arm as defined in claim 3, wherein: One end of the first reset spring (232) is fixedly connected with the outer wall of the first connecting sheet (221), and the other end of the first reset spring (232), away from the first connecting sheet (221), is fixedly connected with the outer wall of the second connecting sheet (231).

6. A high strength break resistant control arm as defined in claim 3, wherein: The end, away from the positioning block (222), of the connecting rod group (235) is rotatably connected in the inside of the pressing sliding block (233).

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