A new type of pull rod

Abstract

A novel pull rod includes a pull rod bracket and an inner core. One end of the pull rod bracket has an assembly portion, and the other end has a bushing. The inner core is located within the bushing and includes a front end away from the assembly portion and a rear end near the assembly portion. The left and right sides of the inner core are connected to the bushing via rubber bodies. The inner peripheral wall of the front side of the bushing has a front rubber block facing the front end of the inner core. A skeleton plate is embedded in the side of the front rubber block near the front end of the inner core. This design, by embedding a skeleton plate in the side of the front rubber block near the front end of the inner core, allows the inner core to impact the skeleton plate first during movement. The skeleton plate then transmits the impact to the bushing and pull rod bracket via the front rubber block. This effectively limits the movement of the inner core while improving the rigidity of the front rubber block, reducing the risk of breakage. It also allows the rubber body to have better curve progression as it moves with the inner core, ensuring the durability of the rubber body.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive chassis parts, and more specifically to a novel tie rod. Background Technology

[0002] The anti-torsion bar is a key load-bearing component in the automotive chassis system. Its core function is to limit powertrain displacement and prevent excessive fore-and-aft swaying of the engine / transmission during acceleration and braking, effectively improving vehicle stability, handling, and ride comfort. During vehicle operation, especially when traversing bumpy roads, turning, or undergoing emergency braking, the anti-torsion bar needs to withstand complex alternating loads from the wheels, including tensile, compressive, torque, and impact loads. This places stringent requirements on the anti-torsion bar's structural strength, cushioning performance, and durability.

[0003] In existing technologies, anti-torsion tie rods typically include core components such as a tie rod bracket, an inner core, and bushings. Among these, the bushing, acting as a buffer and limiting mechanism, is a crucial component ensuring the anti-torsion tie rod's buffering performance. To achieve the effect of buffering and vibration reduction, existing anti-torsion tie rod bushings generally employ a structure design where the inner core is encased in rubber material. The elastic deformation of the rubber absorbs vibration and impact loads, while simultaneously limiting and protecting the inner core. During the use of new energy hybrid vehicles, the motor operates under conditions of low engine speed, high torque, and regenerative braking (energy recovery). This causes the anti-torsion tie rod to require increased travel and reduced suspension working point stiffness compared to traditional fuel vehicles. This makes it difficult to design the limiting structure of the existing anti-torsion tie rod, as it is difficult to balance stiffness and durability. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing anti-torsion rods cannot balance stiffness and durability.

[0005] To solve the above problems, this utility model provides a novel pull rod, including a pull rod bracket and an inner core. One end of the pull rod bracket is provided with an assembly part and the other end is provided with a bushing. The inner core is located inside the bushing and includes a front end away from the assembly part and a rear end close to the assembly part. The left and right sides of the inner core are respectively connected to the bushing through rubber bodies. The inner peripheral wall of the front side of the bushing is provided with a front rubber block facing the front end of the inner core. A skeleton piece is embedded in the side of the front rubber block near the front end of the inner core.

[0006] Compared with the prior art, the above solution embeds a skeleton plate on the side of the front rubber block near the front end of the inner core. This allows the inner core to impact the skeleton plate first when it moves, and then the skeleton plate transmits the impact to the bushing and tie rod bracket through the front rubber block. This not only effectively limits the inner core but also improves the rigidity of the front rubber block, reduces the risk of damage to the front rubber block, and also makes the rubber body have better curve progression when it moves with the inner core, thus ensuring the durability of the rubber body.

[0007] In an improved design, the skeleton piece is arc-shaped with its concave side facing the front end of the inner core, so that the skeleton piece is subjected to more stable and reliable force when it is struck by the inner core, thus achieving a better limiting effect.

[0008] In an improved embodiment, the concave side of the skeleton piece is covered by the rubber of the front rubber block, thereby achieving a better cushioning effect on the inner core.

[0009] In an improved embodiment, the front rubber block has a hollow hole in the middle, which is located on the side of the skeleton piece facing away from the inner core, thereby enabling the front rubber block to have better deformation capability and meet the compatibility of low stiffness adjustment and large load limit.

[0010] In an improved embodiment, the inner core has a rear rubber block at its rear end, which is positioned toward the inner peripheral wall of the bushing on the rear side, thereby allowing the inner core to achieve limiting and buffering in another direction through the rear rubber block.

[0011] In an improved embodiment, the inner peripheral wall of the rear side of the bushing is provided with a rubber buffer layer to achieve a better buffering effect on the rear rubber block.

[0012] In an improved embodiment, the front rubber block, rubber body, rear rubber block, and rubber buffer layer are integrally vulcanized, resulting in a stable structure that is easy to process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a new type of tie rod; Figure 2 This is a top view schematic diagram of a new type of pull rod; Figure 3 This is a side view of a new type of tie rod; Figure 4 For along Figure 3 Schematic diagram of the cross section line AA in the middle.

[0014] Explanation of reference numerals in the attached figures. 1. Tie rod bracket; 11. Assembly part; 12. Bushing; 2. Inner core; 3. Rubber body; 4. Front rubber block; 41. Skeleton piece; 42. Hollow hole; 5. Rear rubber block; 6. Rubber buffer layer. Detailed Implementation

[0015] It should be understood by those skilled in the art that the following embodiments are merely illustrative of the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0016] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0017] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Please see Figures 1-4 The present invention provides a novel pull rod, comprising a pull rod bracket 1 and an inner core 2. One end of the pull rod bracket 1 is provided with an assembly part 11 and the other end is provided with a bushing 12. The inner core 2 is located inside the bushing 12 and includes a front end away from the assembly part 11 and a rear end close to the assembly part 11. The left and right sides of the inner core 2 are respectively connected to the bushing 12 through rubber bodies 3. The inner peripheral wall of the front side of the bushing 12 is provided with a front rubber block 4 facing the front end of the inner core 2. A skeleton piece 41 is embedded in the side of the front rubber block 4 close to the front end of the inner core 2.

[0020] Compared with the prior art, the above solution embeds a skeleton plate 41 on the side of the front rubber block 4 near the front end of the inner core 2, so that when the inner core 2 moves, it can first impact the guide skeleton plate 41, and then the skeleton plate 41 transmits the impact to the bushing 12 and the tie rod bracket 1 through the front rubber block 4. This not only achieves the effective limiting effect on the inner core 2, but also improves the rigidity of the front rubber block 4, reduces the risk of damage to the front rubber block 4, and also makes the rubber body 3 have better curve progression when moving with the inner core 2, ensuring the durability of the rubber body 3.

[0021] The fitting portion 11 belongs to the prior art, and is hole-shaped in the present embodiment for shaft installation; the shape of the inner core 2 is also not limited in the present embodiment, but the inner core 2 has four side edges: front, rear, left and right.

[0022] In the present embodiment, the framework sheet 41 is arc-shaped, and the concave arc side faces the front end of the inner core 2, so that the stress of the framework sheet 41 is more stable and reliable when the inner core 2 impacts it, achieving a better limiting effect.

[0023] Further, the concave arc side of the framework sheet 41 is covered by the rubber of the front rubber block 4, thereby achieving a better buffering effect on the inner core 2.

[0024] As an improved solution for the present embodiment, a hollow hole 42 is provided in the middle of the front rubber block 4, and the hollow hole 42 is located on a side of the framework sheet 41 facing away from the inner core 2, so that a herringbone-like structure is formed at the position of the front rubber block 4 away from the inner core 2, thereby providing better deformation capability and satisfying the compatibility between low stiffness adjustability and large load limiting.

[0025] In the present embodiment, a rear rubber block 5 is provided at the rear end of the inner core 2, and the rear rubber block 5 is arranged toward the inner peripheral wall on the rear side of the bushing 12, so that the inner core 2 realizes limiting and buffering in another direction through the rear rubber block 5.

[0026] Further, a rubber buffer layer 6 is provided on the inner peripheral wall at the rear side of the bushing 12, so as to achieve a better buffering effect on the rear rubber block 5.

[0027] In the present embodiment, the front rubber block 4, the rubber body 3, the rear rubber block 5 and the rubber buffer layer 6 are integrally formed by vulcanization, which has a stable structure and is easy to process.

[0028] It should be noted that, in the description of the present application, terms such as "inner", "outer" and other terms indicating direction or position relationship are based on the direction or position relationship shown in the accompanying drawings, which is only for the convenience of description, and does not indicate or imply that the described device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present application; all directional indicators (such as up, down, left, right, front, rear, inner, outer) are only used to explain the relative position relationship, movement situation, etc. between various components in a specific posture, and if the specific posture changes, the directional indicator changes accordingly.

[0029] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0030] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A novel tie rod, characterized in that, The device includes a tie rod bracket (1) and an inner core (2). One end of the tie rod bracket (1) is provided with an assembly part (11) and the other end is provided with a bushing (12). The inner core (2) is located inside the bushing (12) and includes a front end away from the assembly part (11) and a rear end close to the assembly part (11). The left and right sides of the inner core (2) are respectively connected to the bushing (12) through a rubber body (3). The inner peripheral wall of the front side of the bushing (12) is provided with a front rubber block (4) facing the front end of the inner core (2). A skeleton piece (41) is embedded in the side of the front rubber block (4) close to the front end of the inner core (2).

2. The novel tie rod according to claim 1, characterized in that, The skeleton piece (41) is arc-shaped with its concave side facing the front end of the inner core (2).

3. The novel tie rod according to claim 2, characterized in that, The concave side of the skeleton piece (41) is covered by the rubber of the front rubber block (4).

4. The novel tie rod according to any one of claims 1-3, characterized in that, The front rubber block (4) has a hollow hole (42) in the middle, and the hollow hole (42) is located on the side of the skeleton piece (41) facing away from the inner core (2).

5. The novel tie rod according to claim 1, characterized in that, The inner core (2) has a rear rubber block (5) at its rear end, and the rear rubber block (5) is disposed facing the inner peripheral wall of the bushing (12) on the rear side.

6. The novel tie rod according to claim 5, characterized in that, The inner peripheral wall of the bushing (12) on the rear side is provided with a rubber buffer layer (6).

7. The novel tie rod according to claim 6, characterized in that, The front rubber block (4), rubber body (3), rear rubber block (5) and rubber buffer layer (6) are integrally vulcanized.

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