Detachable ball cage brake pedal, brake system and vehicle

Abstract

The utility model relates to a kind of brake pedal of detachable ball cage, brake system and vehicle, brake pedal includes split ball cage base support and ball cage assembly, the split ball cage base support includes fixed part and detachable part, the fixed part is fixedly connected with the pedal arm of brake pedal, the detachable part is detachably fixedly connected with the fixed part by fastener, both are enclosed to form ball cage accommodating cavity, for assembling ball cage assembly.Brake system and vehicle also include brake booster push rod, the end of brake booster push rod is equipped with ball head, the ball head top is in the arc-shaped groove of the ball bowl, forms ball hinge pair.The utility model splits the ball cage base support of traditional sense into fixed part and detachable part two parts, so that without disassembling brake pedal arm or brake assisting device when maintaining, just loosen fastener to open detachable part, directly take out ball cage assembly, reduce maintenance difficulty, improve whole vehicle maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a brake pedal with a detachable ball joint, a braking system, and a vehicle. Background Technology

[0002] In the transmission structure of an automotive braking system, the connection between the brake pedal and the brake booster relies on the CV joint assembly. The assembly relationship is as follows: the brake booster pushrod forms a rotating pair with the CV joint via a cup, and the CV joint is fixed within the CV joint base bracket, which is integrally formed with the pedal arm. This traditional integrated bracket is a closed cavity structure, completely enclosing the CV joint after assembly, with only a pre-existing pushrod insertion channel, and no adjustable or detachable structural design.

[0003] However, this structure has significant drawbacks in actual maintenance scenarios: when the ball joint needs replacement due to wear, jamming, or other malfunctions, it cannot be directly removed because it is rigidly confined by both the inner wall of the bracket and the pushrod ball head. Maintenance personnel can only choose to disassemble the brake pedal assembly or the brake booster, both of which extend maintenance time and significantly increase maintenance costs. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a brake pedal, braking system, and vehicle with a detachable ball joint.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A brake pedal with a detachable CV joint includes a split CV joint base bracket and a CV joint assembly. The split CV joint base bracket includes a fixed part and a detachable part. The fixed part is fixedly connected to the pedal arm of the brake pedal, and the detachable part is detachably fixedly connected to the fixed part by fasteners. The two together enclose a CV joint receiving cavity for assembling the CV joint assembly.

[0006] The beneficial effects of this utility model are: By splitting the traditional CV joint base bracket into two parts, a fixed part and a detachable part, maintenance can be performed without disassembling the brake pedal arm or brake booster device. The detachable part can be opened simply by loosening the fasteners, and the CV joint assembly can be directly removed. This solves the technical problems of cumbersome procedures and time-consuming maintenance of traditional structures, while also reducing the risk of damaging the CV joint during maintenance and replacement.

[0007] Furthermore, the ball cage assembly includes a ball cage and a ball cup, with the ball cup assembled inside the ball cage. Ball cage claws are distributed circumferentially on the outer wall of the ball cage. The ball cage serves as the mounting carrier for the ball cup, achieving stable positioning of the ball cup and precisely fitting the ball cage claws on its outer wall with the latches of the base bracket, forming a circumferential limit and preventing rotational displacement of the ball cage assembly during braking.

[0008] Furthermore, the fixing part is welded to the pedal arm. Compared with detachable structures such as bolted connections, the welded connection method has higher structural rigidity and connection strength, can withstand repeated impacts and torques during braking, and avoids loosening after long-term use.

[0009] Furthermore, the fixing part is provided with an arc-shaped fitting surface that matches the outer contour of the bowl. The arc-shaped fitting surface is precisely adapted to the outer contour of the bowl, which can provide support for the bowl.

[0010] Furthermore, the fixing part is provided with a positioning hole and a mounting hole. The positioning hole provides an assembly reference for the guide pin of the detachable part, and the mounting hole provides a reliable carrier for the connection between the fixing part and the detachable part.

[0011] Furthermore, a guide pin is integrally formed on the detachable part at the position corresponding to the positioning hole. The guide pin allows the detachable part to remain suspended in the positioning hole of the fixed part after the fastener is removed, effectively preventing the detachable part from falling, being damaged, or being lost, while also providing guidance to facilitate disassembly and assembly.

[0012] Furthermore, the guide pin and the positioning hole are fitted with a clearance fit. This clearance fit design ensures that the detachable part can be flexibly rotated around the guide pin, facilitating the placement and removal of the ball cage assembly, while avoiding jamming caused by an overly tight fit or movement caused by an overly loose fit, thus balancing operational flexibility and structural stability.

[0013] Furthermore, the inner wall of the detachable CV joint base bracket is provided with dual-specification CV joint slots, with two sets of slots respectively adapting to the CV joint claws of different specifications. This design allows the same brake pedal to be compatible with multiple specifications of CV joint components, solving the problem that traditional brackets can only adapt to a single specification of CV joint and have poor parts compatibility during maintenance.

[0014] A braking system includes a brake pedal with a detachable CV joint as described above, and a brake booster push rod. The end of the brake booster push rod has a ball head, which rests within an arc-shaped groove in the CV joint, forming a ball joint. This braking system integrates the aforementioned brake pedal with a detachable CV joint, thus retaining the smooth force transmission characteristics of traditional braking system ball joints while also offering the advantages of quick assembly and disassembly of the CV joint assembly and compatibility with multiple specifications.

[0015] A vehicle includes the aforementioned braking system. Equipping the vehicle with the braking system significantly reduces maintenance difficulty and improves overall vehicle maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the brake pedal of the detachable ball cage according to an embodiment of the present utility model; Figure 2This is a schematic diagram of the fixing part in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the ball cage according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the braking system according to an embodiment of the present invention; The attached diagram lists the components represented by each number as follows: 1. Split-type ball cage base bracket; 11. Fixing part; 111. Arc-shaped fitting surface; 112. Positioning hole; 113. Mounting hole; 12. Detachable part; 121. Guide pin; 13. Ball cage latch; 2. Pedal arm; 3. Fastener; 4. Ball cage; 41. Ball cage claw; 5. Ball cup; 6. Brake booster push rod; 61. Ball head. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0020] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0021] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0022] Example 1 like Figures 1 to 3 As shown, this embodiment provides a brake pedal with a detachable CV joint, including a split CV joint base bracket 1 and a CV joint assembly. The split CV joint base bracket 1 includes a fixed part 11 and a detachable part 12. The fixed part 11 is fixedly connected to the brake pedal arm 2, and the detachable part 12 is detachably fixedly connected to the fixed part 11 by fasteners (such as bolts) 3. The two together form a CV joint receiving cavity for assembling the CV joint assembly. This embodiment aims to reduce maintenance difficulty and improve overall vehicle maintenance efficiency by splitting the traditional CV joint base bracket into two parts: the fixed part 11 and the detachable part 12. This eliminates the need to disassemble the brake pedal arm or brake booster during maintenance; the detachable part can be opened simply by loosening the fasteners, allowing direct removal of the CV joint assembly.

[0023] Specifically: The ball cage assembly includes a ball cage 4 and a ball cup 5. The ball cup 5 is assembled inside the ball cage 4, and ball cage claws 41 are distributed circumferentially on the outer wall of the ball cage 4. The ball cage 4 serves as the mounting carrier for the ball cup 5, achieving stable positioning of the ball cup 5 and forming a circumferential limit by precisely matching the ball cage claws 41 on the outer wall with the locking slots of the base bracket, thus preventing the ball cage assembly from rotating or shifting during braking.

[0024] The fixing part 11 is welded to the pedal arm 2. Compared with detachable structures such as bolted connections, the welding connection method has higher structural rigidity and connection strength, and can withstand repeated impact and torque during braking, avoiding loosening after long-term use; at the same time, the welding process is mature and suitable for mass production of automotive parts, which can ensure the positional accuracy and coaxiality of the fixing part and the pedal arm.

[0025] The fixing part 11 is provided with an arc-shaped fitting surface 111 that matches the outer contour of the ball cup 5. The arc-shaped fitting surface 111 is precisely fitted to the outer contour of the ball cup 5, which can support the ball cup 5, distribute the local stress during braking, and prevent the ball cup 5 from deforming or being damaged due to stress concentration; at the same time, the guiding effect of the arc-shaped fitting surface 111 can assist the ball cage assembly in quick positioning and assembly, improve the fitting accuracy between the ball cage cavity and the ball cage assembly, and reduce movement and abnormal noise during braking.

[0026] The fixing part 11 is provided with a positioning hole 112 and a mounting hole 113. The positioning hole provides an assembly reference for the guide pin of the detachable part 12, and the mounting hole 113 provides a reliable carrier for the connection between the fixing part 11 and the detachable part 12. The two work together to realize the disassembly and installation of the detachable part 12 and to firmly fix it, so as to avoid misalignment or loosening after connection.

[0027] A guide pin 121 is integrally formed on the detachable part 12 at a position corresponding to the positioning hole 112. The guide pin 121 allows the detachable part 12 to remain suspended in the positioning hole 112 of the fixed part 11 even after the fasteners are completely removed, effectively preventing the detachable part 12 from falling, being damaged, or being lost. At the same time, after maintenance work is completed and reinstallation is required, the guide pin 121 can provide guidance to align the parts, facilitating the installation of the detachable part of the ball cage base bracket. Moreover, the guide pin 121 is integrally formed with the detachable part 12, eliminating the need for additional assembly. This simplifies the parts processing and assembly process while ensuring the structural strength of the guide pin, preventing it from falling off or breaking during use.

[0028] The guide pin 121 and the positioning hole 112 are fitted with a clearance fit. The clearance fit design ensures that the detachable part 12 can be flexibly rotated around the guide pin 121, which is convenient for the ball cage assembly to be put in and taken out, while avoiding jamming caused by excessive tightness or movement caused by excessive looseness, thus balancing operational flexibility and structural stability.

[0029] The inner walls of the fixed part 11 and the detachable part 12 of the detachable CV joint base bracket 1 are equipped with dual-specification CV joint slots 13 at corresponding positions. The two sets of CV joint slots 13 are respectively adapted to the CV joint claws 41 of different specifications of CV joints 4. This design allows the same brake pedal to be compatible with CV joint components with multiple claw angles and claw sizes, solving the problem that traditional brackets can only adapt to a single specification of CV joint and have poor parts compatibility during maintenance. Different specifications of CV joints can be replaced without replacing the base bracket, thus expanding the applicability of the product.

[0030] Example 2 like Figure 4 As shown, this embodiment provides a braking system including a brake pedal with a detachable ball joint as described in Embodiment 1, and a brake booster push rod 6. The end of the brake booster push rod 6 is provided with a ball head 61, which rests on the arc-shaped groove of the ball cup 5 to form a ball joint. The braking system integrates the aforementioned brake pedal with a detachable ball joint, thus retaining the smooth force transmission characteristics of the ball joint of the traditional braking system, while also possessing the advantages of quick assembly and disassembly of the ball joint assembly and multi-specification compatibility, achieving the dual value of reliable transmission and convenient maintenance. Moreover, the ball joint formed by the ball head 61 and the ball cup 5 can adapt to the rotation stroke of the brake pedal, ensuring the smoothness and effectiveness of the braking force transmission. Combined with the structural optimization of the brake pedal, the overall practicality and stability of the braking system are improved.

[0031] This embodiment also provides a vehicle including the braking system described above, the specific structure of which will not be repeated. After the vehicle is equipped with the braking system, the maintenance efficiency of the brake pedal can be significantly improved; moreover, the high stability and adaptability of the braking system can improve the vehicle's braking safety performance and driving experience; at the same time, the dual-specification adaptability design reduces the inventory pressure of after-sales parts for vehicle maintenance, enhancing the vehicle's market competitiveness.

[0032] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A brake pedal with a detachable ball joint, characterized in that, The system includes a split-type ball cage base bracket (1) and a ball cage assembly. The split-type ball cage base bracket (1) includes a fixed part (11) and a detachable part (12). The fixed part (11) is fixedly connected to the pedal arm (2) of the brake pedal. The detachable part (12) is detachably fixedly connected to the fixed part (11) by a fastener (3). The two together enclose a ball cage receiving cavity for assembling the ball cage assembly.

2. The brake pedal with a detachable ball joint according to claim 1, characterized in that, The ball cage assembly includes a ball cage (4) and a ball bowl (5), the ball bowl (5) being assembled inside the ball cage (4), and ball cage claws (41) being distributed circumferentially on the outer wall of the ball cage (4).

3. The brake pedal with a detachable ball joint according to claim 1, characterized in that, The fixing part (11) is welded to the pedal arm (2).

4. The brake pedal with a detachable ball joint according to claim 1, characterized in that, The fixing part (11) is provided with an arc-shaped fitting surface (111) that matches the outer contour of the ball bowl (5).

5. A brake pedal with a detachable ball joint as described in claim 1, characterized in that, The fixing part (11) is provided with a positioning hole (112) and a mounting hole (113).

6. A brake pedal with a detachable ball joint according to claim 5, characterized in that, A guide pin (121) is integrally formed on the detachable part (12) at the position corresponding to the positioning hole (112).

7. A brake pedal with a detachable ball joint as described in claim 6, characterized in that, The guide pin (121) is clearance-fitted with the positioning hole (112).

8. A brake pedal with a detachable ball joint according to claim 1, characterized in that, The inner wall of the split-type ball cage base bracket (1) is provided with a double-specification ball cage slot (13), and the two sets of ball cage slots (13) are respectively adapted to the ball cage claws (41) of different specifications of ball cages (4).

9. A braking system, characterized in that, The brake pedal of the detachable ball cage as described in any one of claims 1-8 further includes a brake booster push rod (6), the end of which is provided with a ball head (61), the ball head (61) being placed in the arc-shaped groove of the ball cup (5) to form a ball joint.

10. A vehicle, characterized in that, Includes the braking system as described in claim 9.

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