Friction plate assembly and its retaining clamp

Abstract

This invention discloses a friction pad assembly and a fixing clamp having the same, comprising: a mounting plate, a brake pad, a return spring, and a retaining plate; the friction pad assembly is used for the fixing clamp, which includes a clamp body, a guide pin, a piston, and a sealing ring; the return spring includes a base plate and a spring claw connected to the base plate, the retaining plate is located on the side of the base plate away from the mounting plate, the retaining plate is fixedly connected to the mounting plate to fix the base plate between the retaining plate and the mounting plate, the spring claw engages with the piston, wherein the surface of the retaining plate facing the base plate is provided with a protruding structure, the protruding structure abutting against the base plate. According to the friction pad assembly of this embodiment, by providing a protruding structure on the surface of the retaining plate facing the base plate, the contact area and sliding resistance between the retaining plate and the base plate can be effectively reduced, allowing the return spring to move more easily relative to the retaining plate, effectively solving the problem of vehicle braking drag and improving the return performance of the friction pad assembly.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to a friction pad assembly and a retaining clamp having therein. Background Technology

[0002] In the current technology, more and more vehicle models are equipped with fixed calipers. Compared with floating calipers, fixed calipers have advantages such as high-end appearance, strong visual impact, light weight, and the ability to provide greater braking torque. However, current fixed calipers still have disadvantages such as poor friction plate return ability and high overall vehicle drag. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a friction pad assembly that can effectively improve the return capability of the friction pads and reduce vehicle drag.

[0004] According to an embodiment of the present invention, a friction plate assembly includes: a mounting plate, a brake pad, a return spring, and a retaining plate; the friction plate assembly is used to fix a clamp, the clamp including a clamp body, a guide pin, a piston, and a sealing ring, the guide pin being fixed on the clamp body, the piston being movably mounted in a cylinder of the clamp body, and the sealing ring being disposed between the piston and the inner wall of the cylinder; the mounting plate is provided with a guide hole that mates with the guide pin, the brake pad is mounted on one side of the mounting plate, the return spring is mounted on the other side of the mounting plate, the return spring including a base plate and a spring claw connected to the base plate, the retaining plate being located on the side of the base plate away from the mounting plate, the retaining plate being fixedly connected to the mounting plate to fix the base plate between the retaining plate and the mounting plate, the spring claw engaging with the piston, wherein the surface of the retaining plate facing the base plate is provided with a protruding structure, the protruding structure abutting against the base plate.

[0005] According to the friction plate assembly of the present invention, by providing a protruding structure on the surface of the buckle plate facing the base plate, the contact area and sliding resistance between the buckle plate and the base plate can be effectively reduced, making the return spring more movable relative to the buckle plate, effectively solving the problem of vehicle braking drag and improving the return performance of the friction plate assembly.

[0006] In addition, the friction plate assembly according to the present invention may also have the following additional technical features:

[0007] In some embodiments, the protrusion structure includes a plurality of protrusions, which are evenly spaced apart along the circumference of the buckle plate.

[0008] In some embodiments, the elastic claw includes a first claw plate and a second claw plate, one end of the first claw plate is connected to the base plate, the other end of the first claw plate is inclined outward, one end of the second claw plate is connected to the other end of the first claw plate, and the other end of the second claw plate is inclined inward.

[0009] In some embodiments, the first claw and the second claw have a first included angle, wherein the first included angle α satisfies: 100°≤a≤120°.

[0010] In some embodiments, the first claw plate and the base plate have a second included angle, wherein the second included angle b satisfies: 100°≤b≤120°.

[0011] In some embodiments, multiple elastic claws are provided, and the multiple elastic claws are evenly spaced apart along the circumference of the base plate.

[0012] In some embodiments, the piston is provided with a mounting groove on the side facing the mounting plate that engages with the elastic claw. The opening of the mounting groove has a guide slope wall, and a limiting groove is provided in the mounting groove. The first claw and the second claw are arc-shaped to form a bent portion, which is engaged in the limiting groove.

[0013] In some embodiments, a positioning notch is provided on the outer periphery of the base plate, and a positioning piece is provided on the buckle plate to cooperate with the positioning notch. The positioning piece is bent toward the base plate to extend into the positioning notch, and the width of the positioning piece is smaller than the width of the positioning notch.

[0014] In some embodiments, the base plate is provided with a through hole, and the buckle plate is provided with a countersunk platform that mates with the through hole. The countersunk platform is provided with a mounting hole opposite to the through hole, and the mounting hole is a non-circular hole.

[0015] The present invention also proposes a fixing clamp having the above-described embodiments.

[0016] According to an embodiment of the present invention, the fixing clamp, by providing the above-described friction plate assembly, can have better braking performance and less brake drag.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a front view of the fixing clamp according to an embodiment of the present invention;

[0019] Figure 2 It is based on Figure 1 Sectional view of line AA in the middle;

[0020] Figure 3 It is based on Figure 1 Sectional view of the middle BB line;

[0021] Figure 4 It is based on Figure 3 Enlarged view of region D in the middle;

[0022] Figure 5 This is a top view of the fixing clamp according to an embodiment of the present invention;

[0023] Figure 6 It is based on Figure 5 Half-section view of the CC line;

[0024] Figure 7 This is a schematic diagram of the friction plate assembly of the fixing clamp according to an embodiment of the present invention;

[0025] Figure 8 This is an assembly diagram of the friction plate assembly of the fixing clamp according to an embodiment of the present invention;

[0026] Figure 9 This is a cross-sectional view of the fixing clamp according to an embodiment of the present invention;

[0027] Figure 10 This is an assembly diagram of the return spring and the buckle plate of the friction plate assembly according to an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the return spring (first view) of the friction plate assembly according to an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the return spring (second view) of the friction plate assembly according to an embodiment of the present invention;

[0030] Figure 13 This is a schematic diagram of the structure of the buckle plate (first view) of the friction pad assembly according to an embodiment of the present invention;

[0031] Figure 14 This is a schematic diagram of the buckle plate (second view) of the friction pad assembly according to an embodiment of the present invention.

[0032] Figure label:

[0033] 100. Fixing clamps;

[0034] 50. Friction plate assembly;

[0035] 1. Clamp body; 11. Guide through hole; 101. First limiting groove; 102. Second limiting groove;

[0036] 2. Braking assembly; 21. Mounting plate; 22. Brake pad; 201. Guide hole; 202. First protrusion; 203. Second protrusion;

[0037] 3. Guide assembly; 31. Guide pin; 32. Fastener; 301. Fixing rod; 302. Guide rod; 303. Limiting ring; 304. Head; 305. Screw part; 306. Threaded hole; 307. Guide slope;

[0038] 4. Sealing ring;

[0039] 5. Return spring; 51. Base plate; 52. Elastic claw; 501. First claw piece; 502. Second claw piece; 503. Bending part; 504. Positioning notch; 505. Through hole;

[0040] 6. Snap-on panel; 61. Raised structure; 62. Positioning piece; 63. Recessed platform; 601. Mounting hole;

[0041] 7. Piston; 71. Mounting groove; 701. Guide inclined wall; 702. Limiting groove. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] The following is for reference. Figures 1-14 The friction pad assembly 50 according to an embodiment of the present invention is described.

[0047] like Figures 1 to 14 As shown, the friction pad assembly 50 according to an embodiment of the present invention includes: a mounting plate 21, a brake pad 22, a return spring 5, and a retaining plate 6; the friction pad assembly 50 is used to fix a clamp 100, the clamp 100 including a clamp body 1, a guide pin 31, a piston 7, and a sealing ring 4; the guide pin 31 is fixed on the clamp body 1, the piston 7 is movably installed in the cylinder of the clamp body 1, and the sealing ring 4 is disposed between the piston 7 and the inner wall of the cylinder; when the vehicle brakes, the driver presses the brake pedal, and brake fluid enters the cylinder of the clamp body 1 through the brake line, the hydraulic pressure generated by the brake fluid pushes the piston 7 toward the vehicle's brake. As the brake disc moves, the sealing ring 4, which is interference-fitted with the piston 7, undergoes elastic deformation due to the movement of the piston 7. Furthermore, the mounting plate 21 is provided with a guide hole 201 that mates with the guide pin 31. The brake pad 22 is mounted on one side of the mounting plate 21, and the return spring 5 is mounted on the other side of the mounting plate 21. The return spring 5 is connected to the piston 7. When the piston 7 moves toward the brake disc, the piston 7 applies pressure to the return spring 5, thereby pushing the mounting plate 21 and the brake pad 22 together toward the brake disc, and finally causing the brake pad 22 to abut against the brake disc to achieve braking of the vehicle.

[0048] When the vehicle stops braking, the hydraulic pressure generated by the brake fluid disappears instantly, and the piston 7 no longer applies pressure to the return spring 5. The elastically deformed sealing ring 4 restores its deformation and drives the piston 7 back to its original position. In addition, the brake pad 22, which is in contact with the brake disc, will also retract along the direction of the guide pin 31 under the vibration of the brake disc, which can further accelerate the return of the piston 7. Depending on the driver's pedal pressure, the final force applied by the brake pad 22 to the brake disc will also be different.

[0049] Furthermore, the reset spring 5 includes a base plate 51 and a spring claw 52 connected to the base plate 51. The snap plate 6 is located on the side of the base plate 51 away from the mounting plate 21. The snap plate 6 is fixedly connected to the mounting plate 21 to fix the base plate 51 between the snap plate 6 and the mounting plate 21. The spring claw 52 engages with the piston 7. The snap plate 6 has a protruding structure 61 on its surface facing the base plate 51, and the protruding structure 61 abuts against the base plate 51. The elastic claw 52 is located on the side of the base plate 51 facing the piston 7 and extends towards the piston 7. The elastic claw 52 engages with the piston 7, thereby allowing the friction pad assembly 50 to be mounted entirely on the piston 7. Thus, when the piston 7 moves, the elastic claw 52 can drive the brake pad 22 to brake the brake disc. The protruding structure 61 on the latch plate 6 reduces the contact area between the latch plate 6 and the base plate 51, thereby reducing the sliding resistance between the latch plate 6 and the base plate 51. This allows the return spring 5 to move more easily relative to the latch plate 6. Thus, when the vehicle stops braking, the braking force provided by the brake fluid disappears instantly. The movement between the return spring 5 and the latch plate 6 allows the brake pad 22 to stop braking the brake disc more quickly and retract along the direction of the guide pin 31 under the bounce of the brake disc. This effectively solves the problem of brake drag. In addition, the sealing ring 4 can also reset the piston 7 more quickly, effectively preventing jamming when the piston 7 retracts and improving the return performance of the friction pad assembly 50.

[0050] According to the embodiment of the present invention, the friction plate assembly 50 has a raised structure 61 on the surface of the buckle plate 6 facing the base plate 51, which can effectively reduce the contact area and sliding resistance between the buckle plate 6 and the base plate 51, making the return spring 5 more movable relative to the buckle plate 6, effectively solving the problem of vehicle braking drag and improving the return performance of the friction plate assembly 50.

[0051] In one embodiment of the present invention, such as Figures 1 to 14 As shown, the protruding structure 61 includes multiple protrusions, which are evenly spaced along the circumference of the buckle plate 6. In this embodiment, the arrangement of multiple protrusions makes the force between the buckle plate 6 and the base plate 51 more uniform, effectively preventing the return spring 5 from shaking during movement and affecting the braking effect; for example... Figure 14 As shown, the convex hull is a cylindrical protrusion, but it can also be a hemispherical protrusion, a long strip protrusion, etc., and can be adjusted according to actual needs.

[0052] In one embodiment of the present invention, such as Figures 1 to 14As shown, the elastic claw 52 includes a first claw piece 501 and a second claw piece 502. One end of the first claw piece 501 is connected to the base plate 51, and the other end of the first claw piece 501 is inclined outward. One end of the second claw piece 502 is connected to the other end of the first claw piece 501, and the other end of the second claw piece 502 is inclined inward. In this embodiment, the first claw piece 501 and the second claw piece 502 together construct an elastic claw 52 with a bending structure. The elastic claw 52 with a bending structure can better engage with the piston 7, thereby ensuring the stability of the connection between the return spring 5 and the piston 7.

[0053] In one specific embodiment of the present invention, such as Figures 1 to 14 As shown, there is a first included angle between the first claw 501 and the second claw 502, where the first included angle α satisfies: 100°≤a≤120°. In this specific embodiment, the bending structure between the first claw 501 and the second claw 502 has a first included angle. When the angle of the first included angle is between 100° and 120°, the engagement process between the elastic claw 52 and the piston 7 can be smooth and convenient.

[0054] In one specific embodiment of the present invention, such as Figures 1 to 14 As shown, there is a second included angle between the first claw 501 and the base plate 51, and the second included angle b satisfies: 100°≤b≤120°. In this specific embodiment, when the angle of the second included angle is between 100° and 120°, the engagement between the elastic claw 52 and the piston 7 can be smoother.

[0055] In one embodiment of the present invention, such as Figures 1 to 14 As shown, multiple elastic claws 52 are provided, and the multiple elastic claws 52 are evenly spaced along the circumference of the base plate 51. In this embodiment, the arrangement of multiple elastic claws 52 can effectively improve the connection strength between the mounting plate 21 and the piston 7, thereby making it less likely for the mounting plate 21 and the piston 7 to separate; when the piston 7 returns to its original position, the mounting plate 21 can also quickly return to its original position under the action of the multiple elastic claws 52, and the brake pad 22 can also separate from the brake disc more quickly, thereby effectively improving the problem of brake drag of the whole vehicle.

[0056] In one specific embodiment of the present invention, such as Figures 1 to 14As shown, the piston 7 has a mounting groove 71 on the side facing the mounting plate 21, which engages with the elastic claw 52. The opening of the mounting groove 71 has a guide slope 701, and a limiting groove 702 is provided inside the mounting groove 71. The first claw piece 501 and the second claw piece 502 form a curved transition to create a bent portion 503, which engages within the limiting groove 702. In this specific embodiment, the mounting groove 71 allows the piston 7 to better cooperate with the elastic claw 52, ​​making the connection between the piston 7 and the elastic claw 52 more stable. The guide slope 307 allows for smoother and more convenient assembly of the elastic claw 52 and the mounting groove 71, improving assembly efficiency.

[0057] In one embodiment of the present invention, such as Figures 1 to 14 As shown, a positioning notch 504 is provided on the outer periphery of the base plate 51, and a positioning piece 62 is provided on the buckle plate 6 to cooperate with the positioning notch 504. The positioning piece 62 is bent towards the base plate 51 to extend into the positioning notch 504, and the width of the positioning piece 62 is smaller than the width of the positioning notch 504. In this embodiment, the positioning notch 504 can limit the return spring 5 to prevent the return spring 5 from deviating. At the same time, the width of the positioning notch 504 is greater than the width of the positioning piece 62, so that the return spring 5 has a certain amount of movement relative to the buckle plate 6. In this way, when the vehicle stops braking and the piston 7 returns to its original position, the return spring 5 will not provide resistance to the piston 7 or will provide less resistance, which can effectively prevent the piston 7 from getting stuck when returning to its original position.

[0058] In one embodiment of the present invention, such as Figures 1 to 14 As shown, the base plate 51 has a through hole 505, and the buckle plate 6 has a countersunk plate 63 that mates with the through hole 505. The countersunk plate 63 has a mounting hole 601 opposite to the through hole 505. The mounting hole 601 is a non-circular hole. Specifically, rivets pass through the mounting hole 601 and the through hole 505 in sequence to rivet the buckle plate 6 onto the mounting plate 21, thereby ensuring the stability of the buckle plate 6 and preventing it from falling off.

[0059] The present invention also proposes a fixing clamp 100 having the above-described embodiments.

[0060] According to an embodiment of the present invention, the fixing clamp 100, by providing the above-mentioned friction plate assembly 50, can have better braking performance and less brake drag.

[0061] The friction pad assembly 50 and other components and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0062] The following is for reference. Figures 1-14 A fixing clamp 100 according to an embodiment of the present invention is described.

[0063] like Figures 1 to 14 As shown, the fixing clamp 100 according to an embodiment of the present invention includes: clamp body 1, braking assembly 2, driving assembly and guiding assembly 3; the braking assembly 2, driving assembly and guiding assembly 3 are all mounted on the clamp body 1, the braking assembly 2 is used to decelerate and brake the whole vehicle, the driving assembly is used to provide power to the braking assembly 2 and drive the braking assembly 2 to move, and the guiding assembly 3 is used to guide and limit the braking assembly 2 to prevent the braking assembly 2 from shifting position during or after braking and to improve the braking effect.

[0064] Furthermore, the clamp body 1 is provided with a guide through hole 11, and the guide assembly 3 includes a guide pin 31 and a fastener 32. The guide pin 31 extends into the guide through hole 11 from the first end of the guide through hole 11, and the fastener 32 extends into the guide through hole 11 from the second end of the guide through hole 11 to be fixedly connected with the guide pin 31. In this way, the guide pin 31 can be fixedly installed on the guide through hole 11.

[0065] Furthermore, the braking assembly 2 includes a mounting plate 21 and a brake pad 22. The brake pad 22 is mounted on one side of the mounting plate 21. The mounting plate 21 is provided with a guide hole 201. The end of the guide pin 31 away from the fastener 32 extends into the guide hole 201 to guide the mounting plate 21. At the same time, when the braking assembly 2 decelerates and brakes the whole vehicle, the braking assembly 2 will be subjected to a large shear force. The guide pin 31 can limit the mounting plate 21 to prevent the mounting plate 21 from rotating with the wheel.

[0066] According to the fixing clamp 100 of the present invention, by extending the guide pin 31 into the guide through hole 11 from the first end of the guide through hole 11 and fixing the guide pin 31 from the second end of the guide through hole 11 with a fastener 32, the installation stability of the guide pin 31 can be effectively guaranteed, so that the guide pin 31 will not shake or displace when the braking assembly 2 is braking, and the guiding performance of the guide pin 31 and the guiding ability of the brake pad 22 can be effectively improved.

[0067] In one embodiment of the present invention, such as Figures 1 to 14As shown, the guide pin 31 includes a fixing rod 301, a guide rod 302, and a limiting protrusion ring 303 disposed between the fixing rod 301 and the guide rod 302. The fixing rod 301 extends into the guide through hole 11 from the first end and engages with the fastener 32. The first end of the guide through hole 11 is provided with a first limiting groove 101, which engages with the limiting protrusion ring 303 to limit the axial position of the guide pin 31. The guide rod 302 extends into the guide hole 201 to guide the mounting plate 21. In this embodiment, the fixing rod 301 is used to cooperate with the fastener 32 to install and fix the guide pin 31 as a whole, and the limiting protrusion ring 303 is used to cooperate with the first limiting groove 101 to axially limit the guide pin 31 as a whole, so as to prevent the guide pin 31 as a whole from being pulled into the guide through hole 11 during the cooperation between the fastener 32 and the fixing rod 301. The guide rod 302 extends out of the first limiting groove 101 to cooperate with the guide hole 201 on the mounting plate 21, thereby guiding and limiting the mounting plate 21.

[0068] For example Figure 3 As shown, when the fastener 32 is threadedly tightened with the fixing rod 301, the guide pin 31 will be pulled towards the guide through hole 11. However, the limiting protrusion 303 abuts against the bottom surface of the first limiting groove 101, blocking the movement of the guide pin 31. This prevents the guide pin 31 from being pulled into the guide through hole 11. In addition, as the fastener 32 and the fixing rod 301 continue to be threadedly tightened, the pressure between the limiting protrusion 303 and the bottom surface of the first limiting groove 101 will continue to increase. In this way, the guide pin 31 will be pressed against the bottom surface of the first limiting groove 101, making the installation and fixation of the guide pin 31 more stable and effectively improving the guiding performance of the guide pin 31.

[0069] In one specific embodiment of the present invention, such as Figures 1 to 14 As shown, the fastener 32 includes a head 304 and a screw portion 305. A second limiting groove 102 is provided at the second end of the guide through hole 11. The head 304 engages with the second limiting groove 102 to limit the axial position of the fastener 32. The screw portion 305 extends from the second end of the guide through hole 11 into the guide through hole 11 and engages with the fixing rod 301. In this embodiment, the screw portion 305 of the fastener 32 engages with the fixing rod 301 to fix the guide pin 31 as a whole, and the head 304 of the fastener 32 engages with the second limiting groove 102 to axially limit the position of the fastener 32 as a whole. For example... Figure 3As shown, the head 304 of the fastener 32 abuts against the bottom surface of the second limiting groove 102. When the screw portion 305 of the fastener 32 is threadedly tightened with the fixing rod 301 of the guide pin 31, the head 304 of the fastener 32 will be pressed against the bottom surface of the second limiting groove 102, thereby preventing the fastener 32 from being pulled into the guide through hole 11. In addition, when the screw portion 305 and the fixing rod 301 are continuously threadedly tightened, the tension generated between the screw portion 305 and the fixing rod 301 will pull the head 304 of the fastener 32 and the limiting protrusion 303 of the guide pin 31 toward the guide through hole 11. In this way, the head 304 of the fastener 32 and the limiting protrusion 303 of the guide pin 31 are pressed against the bottom surface of the second limiting groove 102 and the bottom surface of the first limiting groove 101, respectively, thereby further improving the installation stability of the guide pin 31 and further improving the guiding performance of the guide pin 31.

[0070] In one specific embodiment of the present invention, such as Figures 1 to 14 As shown, the surface of the screw portion 305 is provided with external threads, and the end of the fixing portion is provided with a threaded hole 306. An internal thread that mates with the external thread is provided inside the threaded hole 306, and a guide slope 307 is provided at the opening of the threaded hole 306. In this embodiment, the screw portion 305 of the fastener 32 is threadedly engaged with the threaded hole 306 on the fixing rod 301 of the guide pin 31. The guide slope 307 at the opening of the threaded hole 306 guides the screw portion 305, making the engagement of the screw portion 305 with the threaded hole 306 faster and more convenient, reducing assembly difficulty.

[0071] Furthermore, the length of the screw portion 305 is less than the depth of the threaded hole 306, the length of the fixing rod 301 is less than the length of the guide hole 11, and there is space between the head 304 and the end of the fixing rod 301. In this way, when the fastener 32 and the guide pin 31 are engaged, the screw portion 305 will not exceed the depth of the threaded hole 306, causing improper engagement, and the fixing rod 301 will not extend out of the guide hole 11 and interfere with the head 304 of the fastener 32, causing assembly failure.

[0072] In one specific embodiment of the present invention, such as Figures 1 to 14As shown, the outer surface of the fixing rod 301 is provided with a knurled structure, and / or the fixing rod 301 is interference-fitted with the guide through hole 11. That is to say, the outer surface of the fixing rod 301 can be provided with a knurled structure, or the fixing rod 301 can be interference-fitted with the guide through hole 11. Alternatively, the outer surface of the fixing rod 301 can be provided with a knurled structure, and the fixing rod 301 can also be interference-fitted with the guide through hole 11. The selection and adjustment can be made according to actual needs. The design of the knurled structure can increase the friction between the outer surface of the fixing rod 301 and the inner wall of the guide through hole 11. In this way, when the guide pin 31 guides and limits the braking assembly 2, the guide pin 31 is not easy to rotate, which can effectively improve the braking effect of the braking assembly 2 and the guiding performance of the guide pin 31.

[0073] In one embodiment of the present invention, such as Figures 1 to 14 As shown, multiple guide holes 201 and multiple guide pins 31 are provided, with each guide hole 201 corresponding to a different guide pin 31. In this embodiment, the cooperation between the multiple guide pins 31 and the multiple guide holes 201 can effectively improve the guiding effect of the guide assembly 3 on the braking assembly 2.

[0074] In one specific embodiment of the present invention, such as Figures 1 to 14 As shown, the mounting plate 21 has a first protrusion 202 and a second protrusion 203 on its circumferential direction. The first protrusion 202 and the second protrusion 203 are located on both sides of the length direction of the mounting plate 21, and are staggered in the width direction of the mounting plate 21. Both the first protrusion 202 and the second protrusion 203 are provided with guide holes 201. In this specific embodiment, the arrangement of the first protrusion 202 and the second protrusion 203 provides space for the arrangement of the guide holes 201, avoiding any impact on the braking of the brake pad 22. The first protrusion 202 and the second protrusion 203 are located on both sides of the length direction of the mounting plate 21, and the guide pin 31 cooperates with the guide holes 201 on the first protrusion 202 and the second protrusion 203 to guide the mounting plate 21. This makes the mounting plate 21 move more smoothly and stably. At the same time, after braking, the return speed of the mounting plate 21 is faster, which can reduce the wear of the brake pad 22.

[0075] Furthermore, the first protrusion 202 and the second protrusion 203 are offset in the width direction of the mounting plate 21, so that the guide holes 201 on the first protrusion 202 and the second protrusion 203 can cooperate with the guide pin 31, so that when the brake pad 22 on the mounting plate 21 is braking, the mounting plate 21 can transfer more shear force to the guide pin 31, thereby making the whole braking process more stable and the braking effect better.

[0076] In one embodiment of the present invention, such as Figures 1 to 14 As shown, the inner wall surface of the guide hole 201 includes a first arc surface, a second arc surface, a third arc surface, a first plane, a second plane, and a third plane. The radius of curvature of the first arc surface is larger than that of the second arc surface, and the radius of curvature of the second arc surface is larger than that of the third arc surface. The first plane is disposed between the first and second arc surfaces and is tangent to both the first and second arc surfaces. The second plane is disposed between the second and third arc surfaces and is tangent to both the second and third arc surfaces. The third plane is disposed between the first and third arc surfaces and is tangent to both the first and third arc surfaces. In this embodiment, this hole design allows the contact area between the guide pin 31 and the guide hole 201 to be smaller when the guide hole 201 engages with the guide pin 31. This results in less sliding resistance and smoother movement of the mounting plate 21 as it moves along the guide pin 31, further improving the guiding capability of the mounting plate 21.

[0077] The present invention also proposes a vehicle having the above-described embodiments.

[0078] The vehicle according to an embodiment of the present invention can have better braking performance by providing the above-described fixing clamp 100.

[0079] The fixing clamp 100 and other components and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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 any suitable manner in 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.

[0081] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A friction plate assembly for a fixed caliper, characterized by, The clamping clamp includes a clamp body (1), a guide pin (31), a piston (7), and a sealing ring (4). The guide pin (31) is fixed on the clamp body (1). The piston (7) is movably installed in the cylinder of the clamp body (1). The sealing ring (4) is disposed between the piston (7) and the inner wall of the cylinder. The friction plate assembly includes a mounting plate (21), a brake pad (22), a return spring (5), and a retaining plate (6). The mounting plate (21) is provided with a guide hole (201) that mates with the guide pin (31). The brake pad (22) is installed on one side of the mounting plate (21), and the return spring (5) is installed on the other side of the mounting plate (21). The reset spring (5) includes a base plate (51) and a spring claw (52) connected to the base plate (51). The buckle plate (6) is located on the side of the base plate (51) away from the mounting plate (21). The buckle plate (6) is fixedly connected to the mounting plate (21) to fix the base plate (51) between the buckle plate (6) and the mounting plate (21). The spring claw (52) engages with the piston (7). The buckle plate (6) has a raised structure (61) on its surface facing the base plate (51), and the raised structure (61) abuts against the base plate (51). The base plate (51) has a positioning notch (504) on its outer periphery. The buckle plate (6) has a positioning piece (62) that cooperates with the positioning notch (504). The positioning piece (62) is bent toward the base plate (51) to extend into the positioning notch (504). The width of the positioning piece (62) is smaller than the width of the positioning notch (504).

2. The friction plate assembly of claim 1, wherein, The protruding structure (61) includes a plurality of protrusions, which are evenly spaced apart along the circumference of the buckle plate (6).

3. The friction plate assembly of claim 1, wherein, The elastic claw (52) includes a first claw plate (501) and a second claw plate (502). One end of the first claw plate (501) is connected to the base plate (51), and the other end of the first claw plate (501) is inclined outward. One end of the second claw plate (502) is connected to the other end of the first claw plate (501), and the other end of the second claw plate (502) is inclined inward.

4. The friction plate assembly of claim 3, wherein, The first claw (501) and the second claw (502) have a first included angle, and the first included angle a satisfies: 100°≤a≤120°.

5. The friction plate assembly of claim 3, wherein, The first claw (501) and the base plate (51) have a second included angle, the second included angle b satisfying: 100°≤b≤120°.

6. The friction plate assembly of claim 1, wherein, Multiple elastic claws (52) are provided, and the multiple elastic claws (52) are evenly spaced apart along the circumference of the base plate (51).

7. The friction plate assembly of claim 3, wherein, The piston (7) is provided with a mounting groove (71) on the side facing the mounting plate (21) to engage with the elastic claw (52). The opening of the mounting groove (71) has a guide inclined wall (701). A limiting groove (702) is provided in the mounting groove (71). The first claw (501) and the second claw (502) are arc-shaped to form a bent part (503). The bent part (503) is engaged in the limiting groove (702).

8. The friction plate assembly of claim 1, wherein, The base plate (51) is provided with a through hole (505), and the buckle plate (6) is provided with a recessed platform (63) that cooperates with the through hole (505). The recessed platform (63) is provided with a mounting hole (601) opposite to the through hole (505). The mounting hole (601) is a non-circular hole.

9. A holding clamp characterized by Includes the friction pad assembly as described in any one of claims 1-8.

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