Failure self-protection front disc brake

By introducing an adjustment component and a drive motor into the front disc brake, the problem of insufficient braking caused by brake pad wear is solved, realizing the self-adjustment of the brake pads and ensuring braking performance and extended lifespan.

CN121273791APending Publication Date: 2026-01-06JIANGSU JURUI VEHICLE TECH CO LTD
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Patent Information

Application Number
CN202511371550.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-01-06

AI Technical Summary

Technical Problem

Existing fail-safe front disc brakes experience a loss of braking tightness after a period of use due to wear of the brake pads.

Method used

By installing an adjustment assembly consisting of a limit slide, brake pads, a fixed frame, a support slide, a moving cylinder, a connecting frame, a moving frame, a connecting rod, and moving components, the brake pads are adjusted by a drive motor and rotating parts to move them closer to or further away from the object being braked, maintaining a close fit.

Benefits of technology

This effectively avoids the problem of insufficient braking caused by the wear of brake pads, ensuring braking performance and extending the service life of the brakes.

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Abstract

The invention relates to the technical field of brakes, in particular to a failure self-protection front disc brake which comprises a mounting bottom plate, a connecting bolt and a caliper disc and further comprises an adjusting assembly, and the adjusting assembly comprises a limiting sliding frame, a brake shoe, a brake lining, a fixing frame, a supporting sliding frame, a moving cylinder, a connecting frame, a moving frame, a connecting rod and a moving component. The brake shoes on the connecting rods can be driven to move and adjust through movement of the movable frame, so that the brake shoes can drive the brake linings to move inwards or outwards, then the abraded brake linings are adjusted and moved to be in an attached state aiming at a braked object, and the situation that braking is not tight due to the fact that the brake linings are abraded to be thin is avoided.
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Description

Technical Field

[0001] This invention relates to the field of brake technology, and more particularly to a fail-safe front disc brake. Background Technology

[0002] Traditional brake shoes have a relatively simple structure, mainly consisting of a brake drum, brake shoes, and an actuating device. Under the action of the actuating device, the brake shoes expand outward and contact the inner wall of the brake drum to generate frictional braking force. However, the brake shoes and brake drum are prone to wear and need to be replaced regularly.

[0003] Existing brakes typically employ advanced designs such as electromagnetic drive or spring energy storage. The brake caliper body is made of high-strength materials such as stainless steel and is equipped with self-lubricating bushings and equal backlash mechanisms to ensure uniform contact between the brake pads and the brake disc. Existing brakes have uniform brake pad wear, long replacement cycles, and are easy to maintain.

[0004] However, after a period of use, existing fail-safe front disc brakes may experience brake pad wear, resulting in thinner brake pads and consequently, a lack of tight braking. Summary of the Invention

[0005] The purpose of this invention is to provide a fail-safe front disc brake, which aims to solve the problem that existing fail-safe caliper disc brakes, after a period of use, will experience brake pad wear, resulting in thinner brake pads and consequently, insufficient braking force.

[0006] To achieve the above objectives, the present invention provides a fail-safe front disc brake, comprising a mounting base plate, a connecting pin, and a caliper disc, wherein the connecting pin is disposed on the mounting base plate, and the caliper disc is disposed on the connecting pin.

[0007] It also includes adjustment components,

[0008] The adjustment assembly includes a limiting slide, a brake shoe, a brake pad, a fixed frame, a supporting slide, a movable cylinder, a connecting frame, a movable frame, a connecting rod, and a movable component. The limiting slide is slidably connected to the caliper disc and is located on one side of the caliper disc. The brake shoe is disposed on the limiting slide, and the brake pad is disposed on the brake shoe. The fixed frame is fixedly connected to the caliper disc and is located on one side of the caliper disc. The supporting slide is fixedly connected to the fixed frame and is located on one side of the fixed frame. The movable cylinder is fixedly connected to the supporting slide and is located on one side of the supporting slide. The connecting frame is connected to the supporting slide through the movable component. The movable frame is slidably connected to the movable cylinder and fixedly connected to the connecting frame, and is located on the side of the movable cylinder closer to the connecting frame. The connecting rod is fixedly connected to the movable frame and the brake shoe respectively, and is located on the side of the movable frame closer to the brake shoe. The movable component is disposed on the supporting slide and connected to the connecting frame.

[0009] The movable component includes a threaded sleeve, a screw, and a rotating component. The threaded sleeve is slidably connected to the support slide and fixedly connected to the connecting frame, and is located on the side of the support slide closer to the connecting frame. The screw is connected to the support slide through the rotating component and threadedly connected to the threaded sleeve, and is located on the side of the support slide closer to the threaded sleeve. The rotating component is disposed on the support slide and connected to the screw.

[0010] The rotating component includes a rotating seat and a rotating rod. The rotating seat is fixedly connected to the support slide and is located on one side of the support slide. The rotating rod is rotatably connected to the rotating seat and fixedly connected to the screw, and is located on the side of the rotating seat closer to the screw.

[0011] The rotating component further includes a limiting ring, which is fixedly connected to the rotating rod and located on the side of the rotating rod near the rotating seat.

[0012] The rotating component further includes a drive motor, which is mounted on the rotating base and connected to the rotating rod, and is located on the side of the rotating base closer to the rotating rod.

[0013] The clamp disc has a limiting groove, which is located on the side of the clamp disc near the limiting slide and cooperates with the limiting slide.

[0014] The rotating component further includes a control component, which includes an external base and an external wire. The external base is mounted on the drive motor and located on one side of the drive motor. The external wire is connected to the external base and located on one side of the external base.

[0015] The failure self-protection front disc brake further includes a braking assembly, which includes a rotating pin, an output shaft, and a brake cylinder. The rotating pin is disposed on the caliper disc, the output shaft is disposed on the rotating pin, and the brake cylinder is disposed on the output shaft.

[0016] This invention discloses a self-protecting front disc brake. When the brake pads are worn and the operator feels a lack of braking tightness, the operator controls the activation of the moving component to move the connecting frame within the support slide. The movement of the connecting frame causes the moving frame to move in a directional and limited manner within the moving cylinder. This movement of the moving frame causes the brake shoe on the connecting rod to move and adjust, allowing the brake shoe to move the brake pad inward or outward. This ensures that the worn brake pad is adjusted to fit the object being braked, preventing a lack of braking tightness due to the brake pads becoming thinner. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a structural schematic diagram of the failure self-protection front disc brake according to the first embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the adjustment component according to the first embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the rotating component according to the first embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the failure self-protection front disc brake according to the second embodiment of the present invention.

[0022] Figure 5 This is a structural schematic diagram of the failure self-protection front disc brake according to the third embodiment of the present invention.

[0023] In the diagram: 101-Mounting base plate, 102-Connecting pin, 103-Clamping disc, 104-Limiting slide, 105-Brake shoe, 106-Brake lining, 107-Fixed frame, 108-Supporting slide, 109-Moving cylinder, 110-Connecting frame, 111-Moving frame, 112-Connecting rod, 113-Limiting slide groove, 114-Threaded sleeve, 115-Screw, 116-Rotating seat, 117-Rotating rod, 118-Limiting ring, 119-Drive motor, 201-External base, 202-External wire, 301-Rotating pin, 302-Output shaft, 303-Brake cylinder. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] The first embodiment of this application is:

[0026] Please see Figures 1 to 3 ,in Figure 1 This is a structural schematic diagram of the failure self-protection front disc brake according to the first embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of the adjustment component according to the first embodiment of the present invention. Figure 3 This is a schematic diagram of the rotating component according to the first embodiment of the present invention.

[0027] This invention provides a fail-safe front disc brake, comprising a mounting base 101, a connecting pin 102, a caliper disc 103, and an adjustment assembly. The adjustment assembly includes a limiting slide 104, brake shoes 105, brake pads 106, a fixing frame 107, a supporting slide 108, a moving cylinder 109, a connecting frame 110, a moving frame 111, a connecting rod 112, and a moving component. The caliper disc 103 has a limiting groove 113. The moving component includes a threaded sleeve 114, a screw 115, and a rotating component. The rotating component includes a rotating seat 116, a rotating rod 117, a limiting ring 118, and a drive motor 119. This solution addresses the problem that existing fail-safe front disc brakes, after a period of use, suffer from brake pad wear, resulting in thinner brake pads and consequently, weak braking. It is understood that this solution can be used in situations requiring adjustment of the brake pad braking position.

[0028] In this embodiment, the connecting pin 102 is mounted on the mounting base plate 101, and the device can be installed in the corresponding usage position through the mounting base plate 101. The clamping disc 103 is mounted on the connecting pin 102, and the clamping disc 103 can rotate around the axis of the connecting pin 102. Thus, the rotation of the clamping disc 103 can drive the brake pad 106 on the brake shoe 105 to abut against the object being braked to achieve the purpose of braking the object.

[0029] The limiting slide 104 is slidably connected to the caliper disc 103 and located on one side of the caliper disc 103. The brake shoe 105 is disposed on the limiting slide 104, and the brake pad 106 is disposed on the brake shoe 105. The fixing frame 107 is fixedly connected to the caliper disc 103 and located on one side of the caliper disc 103. The supporting slide 108 is fixedly connected to the fixing frame 107 and located on one side of the fixing frame 107. The moving cylinder 109 is fixedly connected to the supporting slide 108 and located on one side of the supporting slide 108. The connecting frame 110 is connected to the supporting slide 108 through the moving member. The moving frame 111 slides with the moving cylinder 109. The moving component is connected to and fixedly connected to the connecting frame 110, and located on the side of the moving cylinder 109 near the connecting frame 110. The connecting rod 112 is fixedly connected to the moving frame 111 and the brake shoe 105 respectively, and the connecting rod 112 is located on the side of the moving frame 111 near the brake shoe 105. The moving component is disposed on the support slide 108 and connected to the connecting frame 110. There are two limiting slides 104, and the two limiting slides 104 are slidably connected to the caliper 103. The brake shoe 105 is disposed on the limiting slide 104. The limiting slide 104 enables the brake shoe 105 to move on the caliper 103 for connection support. The brake pad 106 is mounted on the brake shoe 105 and can abut against the braked object after movement. Two fixing brackets 107 are welded to the caliper 103. A support slide 108 is welded to the two fixing brackets 107 and has a sliding groove. A moving cylinder 109 is welded to the support bracket, and the sliding groove in the moving cylinder 109 communicates with the sliding groove in the support slide 108. A connecting frame 110 is connected to the support slide 108 via the moving member, and the moving member can drive the connecting frame 110 to move within the support slide 108. The movable frame 111 is slidably connected inside the movable cylinder 109 and welded to the connecting frame 110. Movement of the connecting frame 110 enables the movable frame 111 to move in a directional and limited manner within the movable cylinder 109. The connecting rod 112 is respectively connected and fixed to the movable frame 111 and the brake shoe 105. Movement of the movable frame 111 enables the brake shoe 105 on the connecting rod 112 to move and adjust. The moving component is disposed on the support slide 108 and connected to the connecting frame 110. The moving component enables the connecting frame 110 to move, thereby achieving the function of responding when the brake pad 106 wears and the operator feels a lack of braking tightness.By controlling the activation of the moving component, the connecting frame 110 is moved within the support slide 108. The movement of the connecting frame 110 causes the moving frame 111 to move directionally and limit its movement within the moving cylinder 109. This movement of the moving frame 111 then causes the brake shoe 105 on the connecting rod 112 to move and adjust, allowing the brake shoe 105 to move the brake lining 106 inwards or outwards. This ensures that the worn brake lining 106 is adjusted to fit the object being braked, preventing insufficient braking due to thinning of the brake lining 106.

[0030] Secondly, the threaded sleeve 114 is slidably connected to the support slide 108 and fixedly connected to the connecting frame 110, and is located on the side of the support slide 108 closer to the connecting frame 110; the screw 115 is connected to the support slide 108 through the rotating component and is threadedly connected to the threaded sleeve 114, and is located on the side of the support slide 108 closer to the threaded sleeve 114; the rotating component is disposed on the support slide 108 and connected to the screw 115, and the threaded sleeve 114 is slidably connected inside the support slide 108, so that the sliding of the threaded sleeve 114 can be connected through the support slide 108. The screw 115 is connected to the support slide 108 via the rotating component, which drives the screw 115 to rotate. The screw 115 is threaded into the threaded sleeve 114. Through the thread of the screw 115 and the directional limiting effect of the support slide 108 on the movement of the threaded sleeve 114, the rotation of the screw 115 can drive the threaded sleeve 114 to move directionally and limit its movement within the support slide 108. The connecting frame 110 is welded to the threaded sleeve 114, so that the movement of the threaded sleeve 114 can drive the movement of the connecting frame 110.

[0031] Meanwhile, the rotating seat 116 is fixedly connected to the supporting slide 108 and located on one side of the supporting slide 108; the rotating rod 117 is rotatably connected to the rotating seat 116 and fixedly connected to the screw 115, and located on the side of the rotating seat 116 near the screw 115. The rotating seat 116 is welded to the supporting slide 108, the rotating rod 117 is rotatably connected inside the rotating seat 116, and the screw 115 is welded to the rotating rod 117, thereby enabling... The rotation of the rotating rod 117 can drive the screw 115 to rotate. The limiting ring 118 is fixedly connected to the rotating rod 117 and is located on the side of the rotating rod 117 near the rotating seat 116. The limiting ring 118 is welded to the rotating rod 117 and limits its rotation within the rotating seat 116. The limiting ring 118 can prevent the rotating rod 117 from shifting or coming out of the rotating seat 116 when it rotates within the rotating seat 116.

[0032] In addition, the drive motor 119 is mounted on the rotating base 116 and connected to the rotating rod 117, and is located on the side of the rotating base 116 close to the rotating rod 117. The drive motor 119 is bolted to the rotating base 116, and the rotating rod 117 is connected to the output end of the drive motor 119, so that the rotating rod 117 can be driven to rotate by the drive output of the drive motor 119.

[0033] Finally, the limiting slide groove 113 is located on the side of the clamp plate 103 near the limiting slide 104 and cooperates with the limiting slide 104. The limiting slide groove 113 can achieve the purpose of limiting the movement of the limiting slide 104 within the clamp plate 103.

[0034] When using a failure-protected front disc brake according to this embodiment, if the brake pad 106 is worn and the operator feels that the brake is not tight, the operator can control the activation of the moving component to move the connecting frame 110 within the support slide 108. The movement of the connecting frame 110 can drive the moving frame 111 to move in a directional and limited manner within the moving cylinder 109. The movement of the moving frame 111 can drive the brake shoe 105 on the connecting rod 112 to move and adjust, so that the brake shoe 105 can drive the brake pad 106 to move inward or outward. This allows the worn brake pad 106 to be adjusted and moved to fit the object being braked, thus avoiding the situation of loose braking due to the thinning of the brake pad 106.

[0035] The second embodiment of this application is as follows:

[0036] Based on the first embodiment, please refer to Figure 4 , Figure 4 This is a schematic diagram of the failure self-protection front disc brake according to the second embodiment of the present invention.

[0037] The present invention provides a failure self-protection front disc brake, which also includes a control component, the control component including an external base 201 and an external wire 202.

[0038] The external base 201 is mounted on the drive motor 119 and located on one side of the drive motor 119; the external wire 202 is connected to the external base 201 and located on one side of the external base 201. The external base 201 is mounted on the control circuit of the drive motor 119, and the external wire 202 is connected to the external base 201. Through the external wire 202 and the external base 201, the operator can externally control the drive output of the drive motor 119, thereby enabling the operator to control the drive motor 119 to adjust the position of the brake pad 106 when necessary.

[0039] The third embodiment of this application is as follows:

[0040] Based on the second embodiment, please refer to Figure 5 , Figure 5 This is a structural schematic diagram of the failure self-protection front disc brake according to the third embodiment of the present invention.

[0041] The present invention provides a failure self-protection front disc brake, which also includes a braking assembly, the braking assembly including a rotating pin 301, an output shaft 302 and a brake cylinder 303.

[0042] The rotating pin 301 is disposed on the caliper disc 103, the output shaft 302 is disposed on the rotating pin 301, and the brake cylinder 303 is disposed on the output shaft 302. The rotating pin 301 is rotatably connected to the caliper disc 103. The output shaft 302 connected to the output end of the brake cylinder 303 is fixedly connected to the rotating pin 301. The output of the brake cylinder 303 can drive the output shaft 302 to move along the output end of the brake cylinder 303. The movement of the output shaft 302 can push the caliper disc 103 on the rotating pin 301 to move, so that the caliper disc 103 can rotate along the connecting pin 102, thereby driving the brake pad 106 on the brake shoe 105 to move, so that the brake pad 106 on the brake shoe 105 can contact the object being braked.

[0043] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A fail-safe front disc brake, comprising a mounting base, a connecting pin and a caliper disc, the connecting pin being arranged on the mounting base, the caliper disc being arranged on the connecting pin, characterized in that, further comprising an adjusting assembly, the adjusting assembly comprises a limiting slide, a brake shoe, a brake pad, a fixing frame, a supporting slide, a moving cylinder, a connecting frame, a moving frame, a connecting rod and a moving member, the limiting slide is in sliding connection with the caliper disc and located at one side of the caliper disc, the brake shoe is arranged on the limiting slide, the brake pad is arranged on the brake shoe, the fixing frame is in fixed connection with the caliper disc and located at one side of the caliper disc, the supporting slide is in fixed connection with the fixing frame and located at one side of the fixing frame, the moving cylinder is in fixed connection with the supporting slide and located at one side of the supporting slide, the connecting frame is connected with the supporting slide through the moving member, the moving frame is in sliding connection with the moving cylinder and in fixed connection with the connecting frame and located at one side of the moving cylinder close to the connecting frame, the connecting rod is in fixed connection with the connecting frame and the brake shoe respectively, the connecting rod is located at one side of the connecting frame close to the brake shoe, and the moving member is arranged on the supporting slide and connected with the connecting frame.

2. The fail-safe front disc brake according to claim 1, characterized in that, the moving member comprises a threaded sleeve, a screw rod and a rotating part, the threaded sleeve is in sliding connection with the supporting slide and in fixed connection with the connecting frame and located at one side of the supporting slide close to the connecting frame; the screw rod is connected with the supporting slide through the rotating part and in threaded connection with the threaded sleeve and located at one side of the supporting slide close to the threaded sleeve; and the rotating part is arranged on the supporting slide and connected with the screw rod.

3. The fail-safe front disc brake according to claim 2, characterized in that, the rotating part comprises a rotating seat and a rotating rod, the rotating seat is in fixed connection with the supporting slide and located at one side of the supporting slide; and the rotating rod is in rotating connection with the rotating seat and in fixed connection with the screw rod and located at one side of the rotating seat close to the screw rod.

4. The fail-safe front disc brake according to claim 3, characterized in that, the rotating part further comprises a driving motor, the driving motor is arranged on the rotating seat and connected with the rotating rod and located at one side of the rotating seat close to the rotating rod.

5. The fail-safe front disc brake according to claim 4, characterized in that, the rotating part further comprises a control member, the control member comprises an external base and an external lead wire, the external base is arranged on the driving motor and located at one side of the driving motor; and the external lead wire is connected with the external base and located at one side of the external base.

6. The fail-safe front disc brake according to claim 1, characterized in that, The self-failure protection front disc brake further comprises a brake assembly, the brake assembly comprises a rotating bolt, an output shaft and a brake cylinder, the rotating bolt is arranged on the caliper disc, the output shaft is arranged on the rotating bolt, and the brake cylinder is arranged on the output shaft.