Brake torsion spring assembly

Abstract

The utility model provides a brake torsion spring assembly, and relates to the technical field of brake torsion spring assemblies. The brake torsion spring assembly comprises a pedal body, a pedal support is fixed to the upper end of the pedal body, a through hole is formed in the middle of the pedal support, a sleeve is fixed to the middle of the upper end of the pedal support, and a torsion spring body sleeves one side of the sleeve; a fixing frame is fixed to one end of the torsional spring body, two sliding grooves are formed in the side, close to the pedal body, of the fixing frame, connecting structures are arranged on the inner walls of the two sliding grooves, and an extrusion frame is arranged on the connecting structures; the connecting structure can drive the extrusion frame to slide in the diameter direction of the through hole so as to conduct treading buffering on the torsion spring body. According to the brake torsion spring assembly, the effect of buffering the treading force of a driver is achieved by treading the pedal body by the driver, the effect of prolonging the service life of the torsion spring assembly is achieved, the effect of stable installation is achieved by manually applying pressure to enable the fixing frame to penetrate through the through hole, and the effect of improving the use stability of the torsion spring assembly is achieved.

Description

Technical Field

[0001] The utility model relates to a brake torsion spring assembly, belonging to the technical field of brake torsion spring assemblies. Background Art

[0002] In modern transportation, especially in the automotive sector, the performance and reliability of the braking system undoubtedly play a decisive role in the vehicle's safe operation. As the key direct interface between the driver and the braking system, the brake pedal's operational precision, comfort, and responsiveness are crucial. The torsion spring assembly plays an indispensable role in brake pedal operation. It leverages its elastic properties to effectively reset the pedal when the driver releases it, ensuring that the brake pedal quickly and accurately returns to its initial position, ready for the next braking operation. It also helps maintain the stability and reliability of the entire braking system over multiple operating cycles.

[0003] Although existing torsion spring assemblies can drive the pedals for routine reset operations, in actual use, the connection between the torsion spring assembly and the pedal is in a rigid contact state. Every time the pedal is stepped on, the torsion spring assembly directly bears the instantaneous impact force. Due to the lack of a buffering mechanism, the metal structure inside the torsion spring assembly is prone to fatigue deformation due to long-term exposure to this continuous instantaneous force environment, resulting in a gradual decrease in its elasticity and a weakened state. Ultimately, it inevitably shortens the service life of the torsion spring assembly, resulting in a shorter service life.

[0004] Furthermore, the torsion spring assembly is attached to the pedal solely by its own elastic force, lacking any dedicated and effective fasteners. This unsuitable assembly makes it difficult for the torsion spring assembly to withstand the constant vibration, bumps, and other external forces generated by the vehicle during long-term use, making it prone to loosening and even falling off over time. This severely weakens the stability of the torsion spring assembly during use, resulting in insufficient stability. Utility Model Content

[0005] (1) Technical problems solved

[0006] The utility model provides a brake torsion spring assembly to solve the problems of short service life and insufficient stability of the torsion spring assembly in the prior art.

[0007] (2) Technical solution

[0008] The utility model is realized by the following technical solutions: a brake torsion spring assembly, comprising a pedal body, a pedal bracket fixed to the upper end of the pedal body, a through hole formed in the middle of the pedal bracket, a sleeve fixed to the middle of the upper end of the pedal bracket, and a torsion spring body sleeved on one side of the sleeve;

[0009] A fixing frame is fixed to one end of the torsion spring body, and two sliding grooves are provided on the fixing frame close to the side of the pedal body. The inner walls of the two sliding grooves are provided with a connecting structure, and an extrusion frame is provided on the connecting structure; the connecting structure can slide with the extrusion frame in the diameter direction of the through hole to cushion the torsion spring body from stepping.

[0010] Preferably, the connecting structure includes two sliders, the middle parts of the two sliders are slidably connected to the limit rod, the separated sides of the two sliders are fixed with a first spring, one end of the two sliders are rotatably connected to the connecting frame, the other ends of the two connecting frames are rotatably connected to the fixed blocks, and the other ends of the two fixed blocks are fixed with an extrusion frame.

[0011] Preferably, the middle parts of the two sliders are slidably connected to the outer surfaces of the two limit rods, the outer surfaces of the two sliders are slidably connected to the inner walls of the two slide grooves, the two ends of the two limit rods are fixed to the middle parts of the two slide grooves, the proximal ends of the two first springs are fixed to the separated sides of the two sliders, and the separated ends of the two first springs are fixed to the separated inner walls of the two slide grooves.

[0012] Preferably, the proximal ends of the two connecting frames are rotatably connected to one ends of the two fixed blocks, and the separated ends of the two connecting frames are rotatably connected to one ends of the two sliders, and the extrusion frame is clearance-matched with the fixed frame.

[0013] Preferably, a connecting block is fixed to one end of the fixing frame away from the torsion spring body, a stabilizing groove is opened in the middle of the connecting block, the inner walls on both sides of the stabilizing groove are slidably connected to the limiting frames, and a second spring is fixed to the proximal ends of the two limiting frames.

[0014] Preferably, the outer surface of the fixing frame contacts the inner wall of the through hole, the outer surfaces of the two limiting frames contact the outer surface of one side of the pedal bracket, the two limiting frames are arranged opposite to each other, and the vertical section of each limiting frame is T-shaped.

[0015] Preferably, the outer surfaces of the two limit frames are slidably connected to the inner walls on both sides of the stable groove, the two ends of the stable groove pass through the middle of the connecting block, and the two ends of the second spring are fixed to the middle of the adjacent sides of the two limit frames.

[0016] The utility model provides a brake torsion spring assembly, which has the following beneficial effects:

[0017] (1) The brake torsion spring assembly, when the driver steps on the pedal body, causes the fixing frame, the slide groove, the slider, the limit rod, the first spring, the connecting frame, the fixing block, and the extrusion frame to cooperate with each other to achieve the effect of buffering the driver's stepping force, preventing the torsion spring from being damaged by direct force, thereby achieving the effect of extending the service life of the torsion spring assembly.

[0018] (2) The brake torsion spring assembly is manually pressed to allow the fixing frame to pass through the through hole, so that the connecting block, the stabilizing groove, the limiting frame, and the second spring cooperate with each other to achieve a stable installation effect, thereby preventing the torsion spring assembly from loosening and falling off after long-term use, thereby achieving the effect of improving the stability of the torsion spring assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a cross-sectional view of the pedal bracket of the present utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified view of the structure of part A;

[0022] Figure 4 It is a schematic diagram of the local structure of the utility model.

[0023]

Main component symbol description

[0024] 1. Pedal body; 2. Pedal bracket; 3. Through hole; 4. Sleeve; 5. Torsion spring body; 6. Fixing frame; 7. Slide groove; 8. Slider; 9. Limit rod; 10. First spring; 11. Connecting frame; 12. Fixing block; 13. Extrusion frame; 14. Connecting block; 15. Stabilizing groove; 16. Limiting frame; 17. Second spring. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] Example 1

[0027] An embodiment of the utility model provides a brake torsion spring assembly.

[0028] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4, including a pedal body 1, which can brake the vehicle by the driver's stepping on it, a pedal bracket 2 is fixed to the upper end of the pedal body 1, and the pedal bracket 2 has the function of connecting, and a through hole 3 is opened in the middle of the pedal bracket 2, which provides space support for the installation of the torsion spring body 5, and a sleeve 4 is fixed to the middle of the upper end of the pedal bracket 2, which has the function of being installed on the vehicle, and a torsion spring body 5 is sleeved on one side of the sleeve 4, which drives the pedal to reset; one end of the torsion spring body 5 is fixed to a fixing bracket 6, and the fixing bracket 6 is provided with two slide grooves 7 on one side close to the pedal body 1, and a connecting structure is provided on the inner walls of the two slide grooves 7. The connecting structure includes two sliders 8, and the middle parts of the two sliders 8 are both slidably connected to the limit rod 9. The two sliders 8 are fixed with a first spring 10 on the separated sides. One end of the two sliders 8 is rotatably connected to the connecting bracket 11, and the other end of the two connecting brackets 11 is rotatably connected to the fixed block 12, and the other end of the two fixed blocks 12 is fixed to the extrusion bracket 13.

[0029] Please refer again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 It is worth mentioning that the middle parts of the two sliders 8 are slidably connected to the outer surfaces of the two limit rods 9, the outer surfaces of the two sliders 8 are slidably connected to the inner walls of the two slide grooves 7, the two ends of the two limit rods 9 are fixed to the middle parts of the two slide grooves 7, the proximal ends of the two first springs 10 are fixed to the separated sides of the two sliders 8, the separated ends of the two first springs 10 are fixed to the inner walls of the separated sides of the two slide grooves 7, the proximal ends of the two connecting frames 11 are rotatably connected to one end of the two fixed blocks 12, the separated ends of the two connecting frames 11 are rotatably connected to one end of the two sliders 8, and the extrusion frame 13 is clearance-matched with the fixed frame 6.

[0030] During use, the present invention involves the driver stepping on the pedal body 1, causing the pedal bracket 2, which is fixedly connected to the pedal body 1, to rotate around the pedal body 1, supported and guided by the sleeve 4 connected to the vehicle. During this rotation, the pedal bracket 2 applies a compressive force to the extrusion frame 13, causing the extrusion frame 13 to shift position. The shifted extrusion frame 13 then drives the two fixed blocks 12 attached to it to move synchronously. These moving fixed blocks 12, via the connected connecting frame 11, force the two sliders 8 away from each other, restrained by the two limit rods 9 and two slide slots 7. The two moving sliders 8 exert pressure on the two first springs 10 attached to their separated sides, generating an elastic force to cushion the pedaling force. Only after the first springs 10 are compressed to their limit will the pedaling force be slowly transmitted to the torsion spring body 5. This effectively cushions the driver's pedaling force, preventing damage to the torsion springs caused by direct force, thereby extending the service life of the torsion spring assembly.

[0031] Example 2

[0032] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , based on the first embodiment, a stable installation function is added;

[0033] Please refer again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 It is worth mentioning that a connecting block 14 is fixed to the end of the fixing frame 6 away from the torsion spring body 5, a stabilizing groove 15 is provided in the middle of the connecting block 14, and the inner walls on both sides of the stabilizing groove 15 are slidably connected to the limiting frames 16, and a second spring 17 is fixed to the proximal ends of the two limiting frames 16.

[0034] Please refer again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 It is worth noting that the outer surface of the fixing frame 6 is in contact with the inner wall of the through hole 3, the outer surfaces of the two limit frames 16 are in contact with the outer surface of one side of the pedal bracket 2, the two limit frames 16 are arranged opposite to each other, and the vertical cross-section of each limit frame 16 is T-shaped. The outer surfaces of the two limit frames 16 are slidably connected to the inner walls on both sides of the stabilizing groove 15, and the two ends of the stabilizing groove 15 pass through the middle of the connecting block 14. The two ends of the second spring 17 are fixed to the middle of the adjacent sides of the two limit frames 16.

[0035] During use of the present invention: When assembling the torsion spring assembly, manually apply pressure to force the fixing frame 6 through the through-hole 3. A connecting block 14 is fixed to the other end of the fixing frame 6, and a stabilizing groove 15 is provided in the middle of the connecting block 14. Two limiting frames 16 sliding on the inner wall of the stabilizing groove 15 first contact the through-hole 3. At this time, the two limiting frames 16 approach each other under the pressure of the through-hole 3, and the two limiting frames 16 approaching each other squeeze the second spring 17 fixed in the middle, so that the two limiting frames 16 obtain compression space and can then slide into the through-hole 3. Until the limiting frames 16 pass through the through-hole 3, the squeezing force disappears, and the compressed second spring 17 drives the two limiting frames 16 to reset under the limit of the stabilizing groove 15. The two reset limiting frames 16 are stuck on one side of the pedal bracket 2, and cooperate with the bent torsion spring body 5 to firmly install the torsion spring assembly on the pedal bracket 2. Achieve a stable installation effect, avoid the torsion spring assembly from loosening and falling off after long-term use, and thus achieve the effect of improving the stability of the torsion spring assembly.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A brake torsion spring assembly, comprising a pedal body (1), characterized in that: A pedal bracket (2) is fixed to the upper end of the pedal body (1), a through hole (3) is provided in the middle of the pedal bracket (2), a sleeve (4) is fixed to the middle of the upper end of the pedal bracket (2), and a torsion spring body (5) is sleeved on one side of the sleeve (4); A fixing frame (6) is fixed to one end of the torsion spring body (5), and two slide grooves (7) are provided on the fixing frame (6) close to the side of the pedal body (1). The inner walls of the two slide grooves (7) are provided with a connecting structure, and an extrusion frame (13) is provided on the connecting structure; the connecting structure can slide with the extrusion frame (13) in the diameter direction of the through hole (3) to perform stepping buffering on the torsion spring body (5).

2. A brake torsion spring assembly according to claim 1, characterized in that: The connection structure comprises two sliders (8), the middle parts of the two sliders (8) are slidably connected to the limit rod (9), the separated sides of the two sliders (8) are fixed with a first spring (10), one end of the two sliders (8) are rotatably connected to a connecting frame (11), the other ends of the two connecting frames (11) are rotatably connected to a fixed block (12), and the other ends of the two fixed blocks (12) are fixed with an extrusion frame (13).

3. A brake torsion spring assembly according to claim 2, characterized in that: The middle parts of the two sliders (8) are slidably connected to the outer surfaces of the two limit rods (9), the outer surfaces of the two sliders (8) are slidably connected to the inner walls of the two slide grooves (7), the two ends of the two limit rods (9) are fixed to the middle parts of the two slide grooves (7), the proximal ends of the two first springs (10) are fixed to the separated sides of the two sliders (8), and the separated ends of the two first springs (10) are fixed to the separated inner walls of the two slide grooves (7).

4. The brake torsion spring assembly according to claim 2, characterized in that: The proximal ends of the two connecting frames (11) are rotatably connected to one end of the two fixed blocks (12), and the separated ends of the two connecting frames (11) are rotatably connected to one end of the two sliders (8), and the extrusion frame (13) is clearance-matched with the fixed frame (6).

5. The brake torsion spring assembly according to claim 1, characterized in that: A connecting block (14) is fixed to one end of the fixing frame (6) away from the torsion spring body (5), a stabilizing groove (15) is provided in the middle of the connecting block (14), and both inner walls of the stabilizing groove (15) are slidably connected to limiting frames (16), and a second spring (17) is fixed to the adjacent ends of the two limiting frames (16).

6. The brake torsion spring assembly according to claim 5, characterized in that: The outer surface of the fixing frame (6) contacts the inner wall of the through hole (3), and the outer surfaces of the two limiting frames (16) contact the outer surface of one side of the pedal bracket (2). The two limiting frames (16) are arranged opposite to each other, and the vertical section of each limiting frame (16) is T-shaped.

7. The brake torsion spring assembly according to claim 5, characterized in that: The outer surfaces of the two limiting frames (16) are slidably connected to the inner walls on both sides of the stabilizing groove (15), the two ends of the stabilizing groove (15) pass through the middle of the connecting block (14), and the two ends of the second spring (17) are fixed to the middle of the adjacent sides of the two limiting frames (16).

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