Brakes

Abstract

The invention relates to the field of brakes and discloses a brake comprising a caliper body, a driving unit, a bracket, a brake block and a return spring for driving the brake block to return, the return spring being mounted on the bracket, the brake block being mounted on the return spring, the driving unit driving the brake block to move to achieve braking, the return spring being deformed to accumulate elastic potential energy during braking, and the elastic potential energy being released to drive the brake block to return after the external force is removed; the caliper body comprises a connecting portion at the top, mounting frames extending on both sides of the connecting portion, support arms extending on both sides of the mounting frames, a support base being arranged at the lower end of the support arm, the support arms being connected via connecting wings, a U-shaped opening with a larger upper opening and a smaller upper opening being formed in the middle of the connecting wings, and the connecting wings being arranged close to the inner side of the support arms.

Description

Technical Field

[0001] The present invention relates to the field of brakes, and in particular to brakes. Background Art

[0002] Chinese patent CN213478994U discloses a spring sheet for returning a brake block, and the spring sheet structure provided is a structure formed by combining two spring sheets. However, the spring sheet structure has the characteristics of tilting and insufficient stability in deformation support, and the entire yellow body cannot provide lateral support force, the force on the caliper body is large, and the brake position is not easy to maintain, and the stability of this brake structure is poor. Summary of the invention

[0003] The present invention aims at solving the disadvantages in the prior art and provides a brake.

[0004] The brake comprises a caliper body, a driving unit, a bracket, a brake block and a return spring for driving the brake block to return, the return spring is installed on the bracket, the brake block is installed on the return spring, the driving unit drives the brake block to move to achieve braking, and the return spring is deformed to accumulate elastic potential energy during braking, and the elastic potential energy is released after the external force is removed to drive the brake block to return; the caliper body comprises a connecting part on the top, mounting frames extend on both sides of the connecting part, support arms extend on both sides of the mounting frames, a support base is arranged at the lower end of the support arm, the support arms are connected by connecting wings, a U-shaped opening with a large upper opening and a small upper opening is formed in the middle of the connecting wing, and the connecting wing is arranged close to the inner side of the support arm.

[0005] Preferably, the clamp body is integrally cast, the middle portion of the connecting portion is cylindrical, the mounting frame is in the shape of a rod arm, the mounting frame is perpendicular to the axis of the connecting portion, and reinforcing ribs are provided at the connection between the mounting frame and the support arm.

[0006] Preferably, a mounting hole is provided on the mounting frame, a pin shaft assembly is installed in the mounting hole, a mounting cavity for assembling the pin shaft assembly is provided on the bracket, an assembly groove for installing the return spring is provided on the bracket, a fixing block is formed on the back side of the clamp of the assembly groove, and a guide area is formed on the front side of the assembly groove.

[0007] Preferably, the return spring includes a mounting groove, which includes a first plate at the bottom, a second plate on the left side of the first plate and a third plate on the corresponding right side. The first plate, the second plate and the third plate form a U-shaped mounting groove, and a return structure extends from the lower end of the mounting groove. The return structure includes a supporting portion, a first bending portion, a second bending portion and a limiting portion. The supporting portion is a double-layer structure, and the supporting portion is an open structure. The gap between the double-layer structures will change when subjected to force; the first bending portion and the second bending portion have an arc transition, the first bending portion and the second bending portion form a deformation opening, and the limiting portion extends to the tail end of the second bending portion; the brake block includes a middle braking area and connecting ears at both ends, the connecting ears include supporting ears and guide ears formed on the jaw side of the supporting ears, and the supporting ears are supported between the second bending portion and the limiting portion.

[0008] Preferably, the reed is an integrally formed structure.

[0009] Preferably, the support portion extends toward the rear side of the first plate and is arranged perpendicular to the first plate and the second plate; the double-layer structure of the support portion is a double-plate structure, the first layer of the support portion is bent toward the rear side and then the tail end of the first layer is bent in reverse to form the second layer, the first layer and the second layer are arranged in parallel, there is a gap between the first layer and the second layer, and the front end of the second layer is bent to form a first bent portion.

[0010] Preferably, the bending line formed at the bending point of the first layer and the second layer of the support part is an oblique line, and the bending line forms a certain angle with the first plate; the third plate extends to the right side with a support plate, the support plate is used to fit the product, the support plate is an L-shaped plate, and the guide ear fits the support plate and slides along the support plate.

[0011] Preferably, the left side track of the support portion is arc-shaped, and the arc line of the left side track of the support portion extends from the lower end of the first plate to the right rear side.

[0012] Preferably, the second bending portion is a C-shaped bend, the tail end of the second bending portion is vertically upward and arranged parallel to the first plate, and there is a gap between the tail end of the second bending portion and the first plate; the limiting portion includes a vertical plate portion and a clamping edge portion at the end, the limiting opening formed by the second bending portion, and the connection between the first bending portion and the second bending portion is used as a supporting point of the brake block, and in the working state, one end of the brake block is limited by the limiting edge, and the other end is limited by the supporting point.

[0013] Preferably, the second plate is bent and extended to the left to form a fixing groove, which is a rectangular groove. A positioning protrusion protrudes from the side of the fixing groove of the second plate. The side opposite to the second plate is the fourth plate, and a positioning plate extending toward the middle of the fixing groove is provided on the fourth plate. The positioning plate is an inclined plate, and the positioning plate extends and inclines from the fourth plate toward the bottom of the fixing groove.

[0014] Compared with the prior art, this solution has the following beneficial effects: the leaf spring structure has the advantages of easy installation, accurate positioning, stable return during braking and return, etc. At the same time, the brake can reduce its weight while meeting the strength requirements through the large-font design. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the brake structure.

[0016] Figure 2 It is a schematic diagram of the structure of the clamp body.

[0017] Figure 3 It is a schematic diagram of the brake structure.

[0018] Figure 4 It is a schematic diagram of the structure of the bracket.

[0019] Figure 5 It is a schematic diagram of the structure of the brake pad.

[0020] Figure 6 It is a schematic diagram of the overall structure of the return reed.

[0021] Figure 7 It is a schematic diagram of the structure of the reed.

[0022] Figure 8 It is a schematic diagram of the structure of the reed.

[0023] The technical names of the accompanying drawings are: 100-caliper body, 101-driving unit, 102-bracket, 103-brake block, 104-return spring, 105-connecting part, 106-mounting frame, 107-support arm, 108-support base, 109-connecting wing, 110-U-shaped mouth, 111-reinforcement rib, 112-mounting hole, 113-pin shaft assembly, 114-assembly groove, 115-fixing block, 116-guide area, 117-support ear, 118-guide ear, 4-third plate, 5-support part, 6-first bending part, 7-second bending part, 8-limiting part, 9-first layer, 10-second layer, 11-bending line, 12-plate part, 13-card edge part, 14-limiting mouth, 15-fixing groove, 16-positioning protrusion, 17-fourth plate, 18-positioning plate, 19-support plate. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] Example 1

[0026] The brake comprises a caliper body 100, a driving unit 101, a bracket 102, a brake block 103 and a return spring 104 for driving the brake block 103 to return, the return spring 104 is mounted on the bracket 102, the brake block 103 is mounted on the return spring 104, the driving unit 101 drives the brake block 103 to move to achieve braking, during the braking process, the return spring 104 is deformed to accumulate elastic potential energy, and after the external force is removed, the elastic potential energy is released to drive the brake block 103 to return; the caliper body 100 comprises a connecting portion 105 at the top, mounting frames 106 are extended on both sides of the connecting portion 105, support arms 107 are extended on both sides of the mounting frame 106, a support base 108 is arranged at the lower end of the support arm 107, the support arm 107 is connected by a connecting wing 109, a U-shaped opening 110 with a small upper opening is formed in the middle of the connecting wing 109, and the connecting wing 109 is arranged close to the inner side of the support arm 107. The caliper body 100 is integrally cast, the middle part of the connecting part 105 is cylindrical, the mounting frame 106 is in the shape of a lever arm, the mounting frame 106 is arranged perpendicular to the axis of the connecting part 105, and a reinforcing rib 111 is arranged at the connection between the mounting frame 106 and the support arm 107. The mounting frame 106 is provided with a mounting hole 112, and a pin assembly 113 is installed in the mounting hole 112. The bracket 102 is provided with a mounting cavity for assembling the pin assembly 113, and the bracket 102 is provided with an assembly groove 114 for installing the return spring 104. A fixing block 115 is formed on the back side of the caliper of the assembly groove 114, and a guide area 116 is formed on the front side of the assembly groove 114.

[0027] In this embodiment, the return spring includes a mounting groove 1, which includes a first plate 2 at the bottom, a second plate 3 on the left side of the first plate 2, and a third plate 4 on the corresponding right side. The first plate 2, the second plate 3, and the third plate 4 form a U-shaped mounting groove 1. A return structure extends from the lower end of the mounting groove 1. The return structure includes a support portion 5, a first bending portion 6, a second bending portion 7, and a limiting portion 8. The support portion 5 is a double-layer structure. The support portion 5 is an open structure. The gap between the double-layer structures will change when the support portion 5 is a force-bearing structure; the first bending portion 6 and the second bending portion 7 are arc-shaped transitions, and the first bending portion 6 and the second bending portion 7 form a deformation opening. The limiting portion 8 extends to the tail end of the second bending portion 7. The spring in this embodiment is an integrally formed structure, which has elastic deformation ability and is made of metal. The brake block 103 includes a braking area in the middle and connecting ears at both ends. The connecting ears include a support ear 117 and a guide ear 118 formed on the jaw side of the support ear 117. The support ear 117 is supported between the second bending portion 7 and the limiting portion 8.

[0028] In this solution, the spring sheet is an integrally formed structure, that is, each structure of the spring sheet is realized by bending. The support portion 5 extends to the rear side of the first plate 2 and is arranged perpendicular to the first plate 2 and the second plate 3; the double-layer structure of the support portion 5 is a double-plate structure, the first layer 9 of the support portion 5 is bent to the rear side and then the tail end of the first layer 9 is bent in the opposite direction to form the second layer 10, the first layer 9 and the second layer 10 are arranged in parallel, there is a gap between the first layer 9 and the second layer 10, and the front end of the second layer 10 is bent to form the first bending portion 6. The first layer 9 and the second layer 10 are both plate structures, that is, they are extended and bent from the lower end of the first plate 2, first bent to form the first layer 9, then bent to a certain distance from the rear end for a second bending to form the second layer 10, the tail end of the second layer 10 is bent to form the first bending portion 6, and then the tail end of the first bending portion 6 is bent to form the second bending portion 7, the first bending portion 6 is located at the lower side of the support portion 5, and the notch formed by the bending faces the upper side.

[0029] In this embodiment, the bending line 11 formed at the bending point of the first layer 9 and the second layer 10 of the support portion 5 is an oblique line, and the bending line 11 forms a certain angle with the first plate 2. This structural design can change the force trajectory during walking, thereby changing the deformation trend, thereby ensuring that the brake block 103 is stable and reliable.

[0030] In this embodiment, the left side track of the support portion 5 is arc-shaped, and the arc line of the left side track of the support portion 5 extends from the lower end of the first plate 2 to the right rear side. The second bending portion 7 is a C-shaped bend, and the tail end of the second bending portion 7 is vertically upward and parallel to the first plate 2. There is a gap between the tail of the second bending portion 7 and the first plate 2. The purpose of the gap is to ensure that the first bending portion 6, the second bending portion 7 and the support portion 5 can be deformed stably when they are deformed. The limiting portion 8 includes a vertical plate portion 12 and a clamping edge portion 13 at the end, a limiting opening 14 formed by the second bending portion 7, and the connection between the first bending portion 6 and the second bending portion 7 is used as a support point of the brake block 103. In the working state, one end of the brake block 103 is limited by the limiting edge, and the other end is limited by the support point.

[0031] In this solution, the second plate 3 is bent and extended to the left to form a fixing groove 15, which is a rectangular groove. A positioning protrusion 16 is protruded from the side of the fixing groove 15 of the second plate 3. The side opposite to the second plate 3 is a fourth plate 17. The fourth plate 17 is provided with a positioning plate 18 extending to the middle of the fixing groove 15. The positioning plate 18 is an inclined plate, and the positioning plate 18 extends and tilts from the fourth plate 17 to the bottom of the fixing groove 15. During assembly, the installation part of the caliper body 100 will be clamped in the fixing groove 15, thereby ensuring the stability of the installation. The support plate 19 is an L-shaped plate, and the guide ear 118 is attached to the support plate 19 and slides along the support plate 19.

[0032] In this solution, a support plate 19 extends to the right side of the third plate 4, and the support plate 19 is used to fit the product.

[0033] When the spring leaf is installed, it is first fixed on the caliper body 100 through the fixing groove 15 and then the two ends of the brake block 103 are installed in the installation groove 1 and fixed by the second bending portion 7 and the clamping edge portion 13.

[0034] Example 2

[0035] The difference between this embodiment and embodiment 1 is that the reed is an alloy copper reed.

[0036] Example 3

[0037] The difference between this embodiment and the first embodiment is that the positioning plate 18 is formed by bending the fourth plate 17 after cutting it.

Claims

1. A brake, characterized in that: The invention comprises a caliper body (100), a driving unit (101), a bracket (102), a brake block (103), and a return spring (104) for driving the brake block (103) to return to its original position. The return spring (104) is mounted on the bracket (102), and the brake block (103) is mounted on the return spring (104). The driving unit (101) drives the brake block (103) to move to achieve braking. During the braking process, the return spring (104) is deformed to accumulate elastic potential energy. After the external force is removed, the elastic potential energy is released to drive the brake block (103) to return to its original position. 103) return; the clamp body (100) comprises a connecting portion (105) at the top, mounting frames (106) extending from both sides of the connecting portion (105), supporting arms (107) extending from both sides of the mounting frames (106), a supporting base (108) being arranged at the lower end of the supporting arm (107), the supporting arm (107) being connected via a connecting wing (109), a U-shaped opening (110) with a larger upper opening and a smaller upper opening being formed in the middle of the connecting wing (109), and the connecting wing (109) being arranged close to the inner side of the supporting arm (107).

2. The brake according to claim 1, characterized in that: The clamp body (100) is integrally cast, the middle part of the connecting part (105) is cylindrical, the mounting frame (106) is in the shape of a lever arm, the mounting frame (106) is arranged perpendicular to the axis of the connecting part (105), and a reinforcing rib (111) is arranged at the connection between the mounting frame (106) and the support arm (107).

3. The brake according to claim 2, characterized in that: The mounting frame (106) is provided with a mounting hole (112), a pin assembly (113) is installed in the mounting hole (112), a mounting cavity for assembling the pin assembly (113) is provided on the bracket (102), an assembly groove (114) for installing a return spring (104) is provided on the bracket (102), a fixing block (115) is formed on the back side of the clamp of the assembly groove (114), and a guide area (116) is formed on the front side of the assembly groove (114).

4. The brake according to claim 2, characterized in that: The return spring (104) comprises a mounting groove (1), the mounting groove (1) comprises a first plate (2) at the bottom, a second plate (3) on the left side of the first plate (2) and a third plate (4) on the corresponding right side, the first plate (2), the second plate (3) and the third plate (4) enclose a U-shaped mounting groove (1), a return structure extends from the lower end of the mounting groove (1), the return structure comprises a support portion (5), a first bending portion (6), a second bending portion (7) and a limiting portion (8), the support portion (5) is a double-layer structure, and the support portion (5) is an open structure Under stress, the gap between the double-layer structure will change; the first bending portion (6) and the second bending portion (7) have an arc transition, the first bending portion (6) and the second bending portion (7) form a deformation opening, and the limiting portion (8) extends to the tail end of the second bending portion (7); the brake block (103) includes a middle braking area and connecting ears at both ends, the connecting ears include a supporting ear (117) and a guide ear (118) formed by the supporting ear (117) on the jaw side, and the supporting ear (117) is supported between the second bending portion (7) and the limiting portion (8).

5. The brake according to claim 4, characterized in that: The reed is an integrally formed structure.

6. The brake according to claim 4, characterized in that: The support portion (5) extends toward the rear side of the first plate (2) and is arranged perpendicularly to the first plate (2) and the second plate (3); the double-layer structure of the support portion (5) is a double-plate structure, the first layer (9) of the support portion (5) is bent toward the rear side and then the tail end of the first layer (9) is bent in the opposite direction to form the second layer (10), the first layer (9) and the second layer (10) are arranged in parallel, there is a gap between the first layer (9) and the second layer (10), and the front end of the second layer (10) is bent to form the first bent portion (6).

7. The brake according to claim 6, characterized in that: The bending line (11) formed at the bending point of the first layer (9) and the second layer (10) of the support portion (5) is an oblique line, and the bending line (11) forms a certain angle with the first plate (2); the third plate (4) is provided with a support plate (19) extending to the right, the support plate (19) is used to fit with the product, the support plate (19) is an L-shaped plate, and the guide ear (118) fits with the support plate (19) and slides along the support plate (19).

8. The brake according to claim 36, characterized in that: The left side track of the support portion (5) is arc-shaped, and the arc line of the left side track of the support portion (5) extends from the lower end of the first plate (2) to the right rear side.

9. The brake according to claim 4, characterized in that: The second bending portion (7) is a C-shaped bend, the tail end of the second bending portion (7) is vertically upward and arranged parallel to the first plate (2), and there is a gap between the tail end of the second bending portion (7) and the first plate (2); the limiting portion (8) comprises a vertical plate portion (12) and a clamping edge portion (13) at the end, a limiting opening (14) formed by the second bending portion (7), and a connection between the first bending portion (6) and the second bending portion (7) is used as a supporting point of the brake block (103); in a working state, one end of the brake block (103) is limited by the limiting edge, and the other end is limited by the supporting point.

10. The brake according to claim 1, characterized in that: The second plate (3) is bent and extended to the left to form a fixing groove (15), the fixing groove (15) is a rectangular groove, a positioning protrusion (16) is protruded on the side of the fixing groove (15) of the second plate (3), and a fourth plate (17) is provided on the side opposite to the second plate (3), and a positioning plate (18) extending toward the middle of the fixing groove (15) is provided on the fourth plate (17), and the positioning plate (18) is an inclined plate, and the positioning plate (18) extends and inclines from the fourth plate (17) toward the bottom of the fixing groove (15).

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