Brake pedal arm connecting rod assembly

Abstract

The brake pedal arm connecting rod assembly comprises a pedal arm and a brake master cylinder push rod, the lower end of the pedal arm is fixedly connected with a brake pedal body, and the lower end of the brake master cylinder push rod and the upper end of the pedal arm are provided with adjusting structures. The adjusting structure comprises a first mounting base, a second mounting base, a rotating block, a rectangular connecting rod, a rotating shaft rod, a first bearing, a rectangular groove, a first bevel gear, a second bevel gear, a second bearing, a rectangular sliding groove, a rectangular sliding block, a threaded rod, a second groove and a rectangular telescopic rod. According to the pedal arm connecting rod assembly of the brake pedal, when the length of the connecting rod needs to be adjusted, the rotating block is rotated, the rectangular telescopic rod drives the rectangular sliding blocks fixedly installed at the upper ends of the surfaces of the two ends to slide in the rectangular sliding grooves, and therefore the rectangular telescopic rod extends or shortens on the rectangular connecting rod; the length of the connecting rod is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a brake pedal arm linkage assembly. Background Technology

[0002] The brake pedal arm linkage assembly is a key mechanical component in the automotive braking system. It primarily transmits the force exerted by the driver pressing the brake pedal to the master cylinder (or other brake actuators), thereby achieving vehicle deceleration or stopping. As a core component of the brake pedal mechanism, it directly affects the sensitivity and reliability of braking operation. The assembly works as follows: the driver presses the brake pedal → the pedal arm rotates around a fixed fulcrum → the force is transmitted to the master cylinder push rod via the linkage → the brake fluid in the master cylinder is pressurized, pushing the brake calipers (or wheel calipers) to perform braking. However, currently used brake pedal arm linkage assemblies have non-adjustable linkage lengths. If the linkage is too short, the driver may need to apply more force to the pedal, leading to driver fatigue; if the linkage is too long, the pedal travel may exceed the ergonomic design limits. Utility Model Content

[0003] The main objective of this invention is to provide a brake pedal arm linkage assembly that can effectively solve the problems in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A brake pedal arm linkage assembly includes a pedal arm and a brake master cylinder push rod. The lower end of the pedal arm is fixedly connected to a brake pedal body. An adjustment structure is provided at the lower end of the brake master cylinder push rod and the upper end of the pedal arm. The adjustment structure includes a first mounting base, a second mounting base, a rotating block, a rectangular connecting rod, a rotating shaft, a first bearing, a rectangular groove, a first bevel gear, a second bevel gear, a second bearing, a rectangular sliding groove, a rectangular slider, a threaded rod, a second groove, and a rectangular telescopic rod.

[0006] More preferably, a first mounting seat is fixedly installed on the upper end of the pedal arm, a rectangular connecting rod is movably installed on the first mounting seat, and a second mounting seat is fixedly installed on the lower end of the brake master cylinder push rod.

[0007] More preferably, a rectangular telescopic rod is movably mounted on the second mounting base. A rectangular groove is formed inside the rectangular rod near the upper end. A bearing is fixedly mounted on the middle of one end surface of the rectangular groove, and a rotating shaft is mounted on the bearing.

[0008] More preferably, a rotating block is fixedly installed on one end surface of the rotating shaft, a first bevel gear is fixedly installed on the other end surface of the rotating shaft, and a second groove is opened on the lower surface of the rectangular connecting rod.

[0009] More preferably, a No. 2 bearing is fixedly installed on the lower surface of the rectangular groove and the upper surface of the No. 2 groove, a threaded rod is installed on the No. 2 bearing, and a No. 2 bevel gear is fixedly installed on the upper surface of the threaded rod.

[0010] More preferably, a first bevel gear fixedly mounted on the other end surface of the rotating shaft meshes with a second bevel gear fixedly mounted on the upper surface of the threaded rod, and a rectangular telescopic rod is threaded onto the outer surface of the threaded rod.

[0011] More preferably, rectangular sliders are fixedly installed on the upper ends of both ends of the rectangular telescopic rod, and rectangular sliding grooves are opened on both ends of the second groove, with rectangular sliders slidably installed in the rectangular sliding grooves.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, the adjustable structure allows the rotating block to be rotated when the length of the connecting rod needs to be adjusted. This causes the rectangular telescopic rod to slide within the rectangular groove, where the rectangular sliders fixedly mounted on the upper ends of both ends slide. This allows the rectangular telescopic rod to extend or shorten on the rectangular connecting rod, thereby adjusting the length of the connecting rod. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a brake pedal arm linkage assembly according to the present invention;

[0015] Figure 2 This is a partial cross-sectional view of a brake pedal arm linkage assembly according to the present invention.

[0016] Figure 3 This utility model relates to a brake pedal arm linkage assembly. Figure 2 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Pedal arm; 2. Brake pedal body; 3. Brake master cylinder push rod; 4. Adjustment structure; 401. Mounting base 1; 402. Mounting base 2; 403. Rotating block; 404. Rectangular connecting rod; 405. Rotating shaft; 406. Bearing 1; 407. Rectangular groove; 408. Bevel gear 1; 409. Bevel gear 2; 410. Bearing 2; 411. Rectangular slide groove; 412. Rectangular slider; 413. Threaded rod; 414. Groove 2; 415. Rectangular telescopic rod. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Participation Figure 1-3 As shown, a brake pedal arm linkage assembly includes a pedal arm 1 and a brake master cylinder push rod 3. The lower end of the pedal arm 1 is fixedly connected to a brake pedal body 2. An adjustment structure 4 is provided at the lower end of the brake master cylinder push rod 3 and the upper end of the pedal arm 1. The adjustment structure 4 includes a first mounting base 401, a second mounting base 402, a rotating block 403, a rectangular connecting rod 404, a rotating shaft 405, a first bearing 406, a rectangular groove 407, a first bevel gear 408, a second bevel gear 409, a second bearing 410, a rectangular sliding groove 411, a rectangular slider 412, a threaded rod 413, a second groove 414, and a rectangular telescopic rod 415.

[0020] Specifically, the brake pedal body 2 is fixedly connected to the lower end of the pedal arm 1, which allows the pedal arm 1 to rotate around a fixed fulcrum. Through the brake master cylinder push rod 3, the connecting rod can transmit force to the master cylinder, thereby pressurizing the brake fluid in the master cylinder.

[0021] Participation Figure 2-3 As shown, a mounting base 401 is fixedly installed on the upper end of the pedal arm 1. A rectangular connecting rod 404 is movably installed on the mounting base 401. A mounting base 402 is fixedly installed on the lower end of the brake master cylinder push rod 3. A rectangular telescopic rod 415 is movably installed on the mounting base 402. A rectangular groove 407 is opened near the upper end inside the rectangular connecting rod 404. A bearing 406 is fixedly installed in the middle of one end surface of the rectangular groove 407. A rotating shaft 405 is installed on the bearing 406. A rotating block 403 is fixedly installed on one end surface of the rotating shaft 405. A bevel gear 408 is fixedly installed on the other end surface of the rotating shaft 405. A groove 414 is opened on the lower surface of the rectangular connecting rod 404.

[0022] Specifically, the No. 1 mounting base 401 fixedly installed on the upper end of the pedal arm 1 and the No. 2 mounting base 402 fixedly installed on the lower end of the brake master cylinder push rod 3 can transmit the force on the rectangular connecting rod 404 and the rectangular telescopic rod 415 to the brake master cylinder push rod 3. The rotating block 403 fixedly installed on one end surface of the rotating shaft 405 and the rotating shaft 405 installed on the No. 1 bearing 406 can drive the rotating block 403 to rotate on the No. 1 bearing 406, thereby driving the No. 1 bevel gear 408 to rotate.

[0023] Participation Figure 2-3 As shown, a No. 2 bearing 410 is fixedly installed on the lower surface of the rectangular groove 407 and the upper surface of the No. 2 groove 414. A threaded rod 413 is installed on the No. 2 bearing 410. A No. 2 bevel gear 409 is fixedly installed on the upper surface of the threaded rod 413. A No. 1 bevel gear 408 is fixedly installed on the other end surface of the rotating shaft 405 and meshes with the No. 2 bevel gear 409 fixedly installed on the upper surface of the threaded rod 413. A rectangular telescopic rod 415 is threadedly installed on the outer surface of the threaded rod 413.

[0024] Specifically, by rotating the first bevel gear 408 fixedly mounted on the other end surface of the shaft 405 and meshing with the second bevel gear 409 fixedly mounted on the upper surface of the threaded rod 413, the threaded rod 413 can rotate on the second bearing 410, thereby causing the rectangular telescopic rod 415 threaded on the outer surface of the threaded rod 413 to slide in the second groove 414.

[0025] Participation Figure 2-3 As shown, rectangular sliders 412 are fixedly installed on the upper ends of both ends of the rectangular telescopic rod 415, and rectangular sliding grooves 411 are opened on both ends of the second groove 414, with rectangular sliders 412 slidably installed in the rectangular sliding grooves 411.

[0026] Specifically, the rectangular sliding grooves 411 opened on both ends of the second groove 414 and the rectangular sliders 412 slidably installed in the rectangular sliding grooves 411 can make the rectangular telescopic rod 415 threaded on the outer surface of the threaded rod 413 slide stably in the second groove 414, thus preventing the rectangular telescopic rod 415 from detaching from the rectangular connecting rod 404.

[0027] It should be noted that this utility model is a brake pedal arm linkage assembly. When the linkage length needs to be adjusted, the rotating block 403 is rotated, causing the rotating shaft 405 to rotate on the first bearing 406, which in turn drives the first bevel gear 408 fixedly mounted on the other end surface of the rotating shaft 405 to rotate. Because the first bevel gear 408 fixedly mounted on the other end surface of the rotating shaft 405 meshes with the second bevel gear 409 fixedly mounted on the upper surface of the threaded rod 413, the threaded rod 413 is driven to rotate on the second bearing 410. This causes the rectangular telescopic rod 415 threaded on the outer surface of the threaded rod 413 to drive the rectangular sliders 412 fixedly mounted on the upper end of both ends to slide downward in the rectangular slide groove 411, thereby causing the rectangular telescopic rod 415 to slide downward in the second groove 414, thus adjusting the linkage length.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A brake pedal arm link assembly characterized by, The system includes a pedal arm (1) and a brake master cylinder push rod (3). The lower end of the pedal arm (1) is fixedly connected to the brake pedal body (2). The lower end of the brake master cylinder push rod (3) and the upper end of the pedal arm (1) are provided with an adjustment structure (4). The adjustment structure (4) includes a first mounting base (401), a second mounting base (402), a rotating block (403), a rectangular connecting rod (404), a rotating shaft (405), a first bearing (406), a rectangular groove (407), a first bevel gear (408), a second bevel gear (409), a second bearing (410), a rectangular slide groove (411), a rectangular slider (412), a threaded rod (413), a second groove (414), and a rectangular telescopic rod (415).

2. A brake pedal arm link assembly according to claim 1, characterized in that: The pedal arm (1) is fixedly mounted with a first mounting seat (401) at its upper end. A rectangular connecting rod (404) is movably mounted on the first mounting seat (401). The brake master cylinder push rod (3) is fixedly mounted with a second mounting seat (402) at its lower end.

3. A brake pedal arm link assembly according to claim 2, wherein: A rectangular telescopic rod (415) is movably mounted on the second mounting base (402). A rectangular groove (407) is provided inside the rectangular connecting rod (404) near the upper end. A bearing (406) is fixedly installed in the middle of one end surface of the rectangular groove (407). A rotating shaft (405) is mounted on the bearing (406).

4. A brake pedal arm link assembly according to claim 3, wherein: A rotating block (403) is fixedly installed on one end surface of the rotating shaft (405), and a first bevel gear (408) is fixedly installed on the other end surface of the rotating shaft (405). A second groove (414) is opened on the lower surface of the rectangular connecting rod (404).

5. A brake pedal bearm linkage assembly as defined in claim 4 wherein: A No. 2 bearing (410) is fixedly installed on the lower surface of the rectangular groove (407) and the upper surface of the No. 2 groove (414). A threaded rod (413) is installed on the No. 2 bearing (410), and a No. 2 bevel gear (409) is fixedly installed on the upper surface of the threaded rod (413).

6. A brake pedal arm link assembly as defined in claim 5 wherein: The first bevel gear (408) fixedly mounted on the other end surface of the rotating shaft (405) meshes with the second bevel gear (409) fixedly mounted on the upper surface of the threaded rod (413), and a rectangular telescopic rod (415) is threadedly mounted on the outer surface of the threaded rod (413).

7. A brake pedal arm link assembly according to claim 6 wherein: A rectangular slider (412) is fixedly installed on the upper end of both ends of the rectangular telescopic rod (415), and a rectangular sliding groove (411) is opened on both ends of the second groove (414), and a rectangular slider (412) is slidably installed in the rectangular sliding groove (411).

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