Brake body based on oil pressure, grip and brake device thereof

Abstract

The invention discloses a C-shaped brake body based on oil pressure, which comprises a brake body (2), the brake body (2) comprises a left brake (22) and a right brake (21), brake pads (27) are fixed on the left brake (22) and the right brake (21) through brake pad fixing bolts (26), and the left brake (22) and the right brake (21) are hinged with each other; a brake oil cylinder (220) is arranged on the left brake (22), a brake piston rod (224) with a brake piston (223) is arranged in the brake oil cylinder (220), and the upper end of the brake piston rod (224) is hinged to the right brake (21). And the brake oil cylinder (220) is provided with an oil port.

Description

Technical Field

[0001] The present invention relates to the field of brakes, and in particular to an oil pressure-based brake body, a handle and a brake device thereof. Background Art

[0002] Brakes are the most critical control mechanism on bicycles or electric bicycles. Today's bicycles (or electric bicycles) generally use rim brakes (C-type brakes) or disc brakes.

[0003] The advantage of disc brakes is their good braking effect, but their complex structure, heavy weight, and high price go against the current trend of lightweight bicycle modification (lightweighting can improve performance).

[0004] The advantages of rim brakes are light weight and simple structure, but they generally use a cable structure. The cable is usually a metal wire, which may rust after long-term use, which is not conducive to the braking feel. In addition, if the rust is severe, the brake handle cannot be squeezed. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present invention provides an anti-fogging and anti-interference endoscope, which aims to improve the problems raised by the above background technology.

[0006] The present invention is achieved in that:

[0007] A hydraulically-based C-type brake body comprises a brake body, which includes a left brake and a right brake. Both the left brake and the right brake are fixed with brake pads via brake pad fixing bolts, and the left brake and the right brake are hinged to each other; a brake oil cylinder is provided on the left brake, a brake piston rod with a brake piston is provided in the brake oil cylinder, and the upper end of the brake piston rod is hinged to the right brake; an oil port is provided on the brake oil cylinder.

[0008] As an improvement to the oil pressure-based C-type brake body described in the present invention, the rightmost endpoint of the left brake and the leftmost endpoint of the right brake are hinged to each other; an extension section is provided on the left side of the leftmost hinge point of the right brake; and the upper end of the brake piston rod is hinged to the extension section of the right brake.

[0009] As a further improvement to the oil pressure-based C-type brake body described in the present invention, the upper end of the brake piston rod is hinged to the extension section via a brake hinge shaft; the brake piston rod is fixedly connected to the brake hinge shaft.

[0010] As a further improvement to the oil pressure-based C-type brake body described in the present invention, the brake piston rod is fixedly connected to the brake articulated shaft by threads; after the upper end of the brake piston rod passes through the brake articulated shaft, an adjusting bolt is provided.

[0011] As a further improvement to the oil pressure-based C-type brake body described in the present invention, an oil inlet bolt is provided on the oil port of the brake cylinder.

[0012] As a further improvement to the oil pressure-based C-type brake body described in the present invention, a gourd head is provided on the oil inlet bolt.

[0013] As a further improvement to the oil pressure-based C-type brake body described in the present invention, the left brake and the right brake are hinged by a fixing bolt; the threaded section of the fixing bolt serves as a frame fixture.

[0014] As a further improvement to the oil pressure-based C-type brake body described in the present invention, an elastic body II is provided between the left brake and the right brake.

[0015] A C-shaped brake grip based on oil pressure, including a grip, wherein the grip includes a brake handle and a handlebar fixing, and is characterized in that a handle cylinder is arranged between the brake handle and the handlebar fixing; the rightmost end of the brake handle is hinged to the handle cylinder; a handle piston is arranged in the handle cylinder, and a handle piston rod is arranged at the upper end of the handle piston and is hinged to the brake handle; and an oil inlet and outlet are arranged on the handle cylinder.

[0016] As an improvement to the oil pressure-based C-type brake handle described in the present invention, the hand piston rod and the handle piston are connected via a universal joint mechanism; an elastic body is provided at the lower end of the handle piston.

[0017] A C-type brake device based on oil pressure comprises the brake body of claim 1 and the handle of claim 9; the oil port and the oil inlet and outlet of the brake body are connected by an oil pipe.

[0018] An application of an oil pressure-based C-type brake device used on a bicycle is as follows, comprising a front wheel brake device and a rear wheel brake device, the brake device comprising the brake body of claim 1 and the handle of claim 8; an oil pipe I is provided on the oil inlet and outlet ports of the handle oil cylinder of the handle of the front wheel brake device, and a one-way valve I is provided on the oil pipe I; an oil pipe III is provided on the oil port of the brake oil cylinder of the brake body of the front wheel brake device; an oil pipe II is provided on the oil inlet and outlet ports of the handle oil cylinder of the handle of the rear wheel brake device, and a one-way valve II is provided on the oil pipe II; an oil pipe IV is provided on the oil port of the brake oil cylinder of the brake body of the rear wheel brake device; the oil pipes I, II, III and IV are connected via a four-way valve.

[0019] In summary, the beneficial effects of the present invention are:

[0020] Firstly, the technology of the present invention adopts an oil pipe connection mode and does not have a cable structure, thereby maintaining the feel of disc brakes and avoiding the defects of rim brakes.

[0021] Furthermore, the brake structure of the present invention adopts shear force and single-sided connection to achieve synchronous tightening of the brakes on both sides, and the braking performance is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 is an overall schematic diagram of a handle provided by an embodiment of the present invention;

[0024] Figure 2 is an overall schematic diagram of a brake body provided by an embodiment of the present invention;

[0025] Figure 3 This invention Figure 1 Orthographic projection diagram of the brake handle;

[0026] Figure 4 This invention Figure 3 Sectional view AA;

[0027] Figure 5 This invention Figure 1 Schematic diagram of the universal bolt, ball screw and piston mechanism;

[0028] Figure 6 This invention Figure 5 Detailed structural diagram of the universal bolt and ball screw;

[0029] Figure 7 This invention Figure 5 Detailed structural diagram of the piston and other mechanisms;

[0030] Figure 8 This invention Figure 2 Left brake indication Figure I ;

[0031] Figure 9 This invention Figure 2 Left brake indication Figure II ;

[0032] Figure 10 This invention Figure 2 Right brake indication Figure I ;

[0033] Figure 11 It is an invention Figure 2 Right brake indication Figure II ;

[0034] Figure 12 It is an invention Figure 2 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 Schematic diagram of the piston, piston rod and other mechanisms;

[0035] Figure 13 yes Figure 12 Schematic diagram of the brake articulated axis. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] Example 1 Figure 1-13 Provided are an oil pressure-based brake body, a handle, and a brake device thereof, comprising a handle 1 and a brake body 2.

[0038] The settings for Grip 1 are as follows:

[0039] The grip 1 includes a brake handle 11, a handle oil cylinder 12 and a handlebar fixing part 13. The lower end of the handle oil cylinder 12 is fixed with the handlebar fixing part 13. The handlebar fixing part 13 is used to be fixed to the handlebar, and its structure is an existing conventional structure.

[0040] The handle oil cylinder 12 is provided with an open cylindrical cavity 120 (oil storage space), and a handle piston 122 is provided in the cylindrical cavity 120. The upper end of the handle piston 122 is provided with a handle piston rod 124, and the handle piston rod 124 is hinged to the brake handle 11 (the handle piston rod 124 is hinged to the brake handle 11 at the middle end of the brake handle 11 or at a position close to the proximal end of the middle end). Figure 1 Or as shown in 4.

[0041] Here, the handle piston rod 124 and the handle piston 122 are actually connected via a universal joint. Figure 5 、 6As shown in Figures 7 and 8, in this embodiment, the handle piston rod 124 is a ball stud (commercially available). A spherical recess 1220 (one end of the cavity is open) is provided at the upper end of the handle piston 122, relative to the ball 1240 at the lower end of the ball stud, to accommodate the ball 1240. The ball 1240 of the ball stud is placed on the open side of the spherical recess 1220. The upper end of the handle piston rod 124 is hinged to the brake handle 11 via the brake handle hinge axis I111. A screw hole I1110 with an internal thread is provided on the brake handle hinge axis I111, relative to the external thread at the upper end of the ball stud. The screw hole I1110 extends transversely through the brake handle hinge axis I111. The threaded connection allows for convenient adjustment of the length of the handle piston rod 124 (ball stud), thereby improving the feel of the handle 1. According to the brake feel, the handle piston rod 124 and the brake handle 11 can be hinged at the middle end of the brake handle 11 or at a position close to the proximal end of the middle end. Generally, the closer to the proximal end, the lighter the feel.

[0042] An elastic body 123 is provided below the handle piston 122, as shown in 4, 5, and 7. The elastic body I 123 in this embodiment is a spring. When specifically provided, a protrusion can be provided below the handle piston 122, and then the spring (elastic body I 123) can be mounted thereon.

[0043] Going further, Figure 1 or Figure 4 As shown, the proximal end point of the brake handle 11 is hinged to the handle oil cylinder 12 through the brake handle hinge shaft II 112. By relying on this hinge point, the brake handle 11 can complete the application of pressure to the hand piston rod 124.

[0044] An oil inlet and outlet 121 is provided on the side of the handle oil cylinder 12 . The oil inlet and outlet 121 passes through the side wall of the handle oil cylinder 12 and is connected to a cylindrical cavity 120 in the handle oil cylinder 12 .

[0045] In the above arrangement, the handle piston 122 is made of rubber material to prevent leakage.

[0046] The settings of brake body 2 are as follows:

[0047] The brake body 2 includes a left brake 22 and a right brake 21. The lower ends of the left brake 22 and the right brake 21 (generally the leftmost end of the left brake 22 and the rightmost end of the right brake 21, as shown in FIG. Figure 2As shown in the figure, the brake pads 27 are fixed to the left brake 22 by the brake pad fixing bolts 26 (this is the prior art), the right end (end point position) of the left brake 22 is provided with a left brake connecting hole 32, and the left end (end point position) of the right brake 21 is provided with a right brake connecting hole 31. The left brake 22 and the right brake 21 are hingedly connected by the fixing bolts 29 through the left brake connecting hole 32 and the right brake connecting hole 31, and a fixing bolt 24 is provided on the fixing bolts 29 to prevent the left brake 22 and the right brake 21 from falling off each other.

[0048] The brake body 2 is fixed to a vehicle frame (such as a bicycle or an electric bicycle) by fixing bolts 29 (i.e., a frame fixture), and is composed of a left brake 22 and a right brake 21 to form a C-shaped structure.

[0049] There is a brake oil cylinder 220 (such as Figure 8 or Figure 9 As shown), the brake cylinder 220 is provided with an open cylindrical cavity 120, the cylindrical cavity 120 contains a brake piston 223, and the upper end of the brake piston 223 has a brake piston rod 224, as shown Figure 12 As shown, the brake piston 223 and the brake piston rod 224 can be fixed by a rigid connection.

[0050] An extension section 30 is provided at the left top end of the right brake 21. Figure 10 Or as shown in Figure 11, the extension section 30 is located at the left end of the right brake connection hole 31, and an extension section connection hole 33 is provided on the extension section 30. Figure 11 or Figure 12 shown.

[0051] The upper end of the brake piston rod 224 is hinged to the extension section 30 of the right brake 21. Figure 2 As shown, the upper end of the brake piston rod 224 is hinged to the extension section 30 of the right brake 21 through the brake hinge shaft 28 (the brake hinge shaft 28 is sleeved in the extension section connection hole 33). The structure of the brake hinge shaft 28 is as shown in FIG. Figure 13 As shown, its structure is actually consistent with the brake handle hinge shaft Ⅰ111, that is, a screw hole Ⅱ280 is provided on the brake hinge shaft 28.

[0052] The outer wall of the upper end of the brake piston rod 224 is provided with an external thread relative to the internal thread in the screw hole II 280. The upper end of the brake piston rod 224 is rigidly connected to the screw hole II 280 through the thread. Furthermore, an adjusting bolt 23 is provided at the portion of the upper end of the brake piston rod 224 that passes through the screw hole II 280. Figure 8-12 As shown, the length of the brake piston rod 224 can be effectively adjusted by adjusting the bolt 23, and the braking distance of the C-shaped port formed by the left brake 22 and the right brake 21 can be indirectly adjusted.

[0053] The outer wall of the brake oil cylinder 220 is provided with an oil inlet and an oil outlet. Figure 8 or Figure 9 As shown, an oil inlet bolt 222 (commercially available) penetrates the outer wall of the brake cylinder 220 and connects to the cylindrical cavity 120 therein. A gourd head 221 (i.e., a gourd-shaped oil pipe connector, hollow inside, which fits over the oil inlet bolt 222 and connects the hollow portion of the oil passage to the oil inlet bolt 222) is mounted on the oil inlet bolt 222. The gourd head 221 connects the oil inlet and outlet passages of the oil inlet bolt 222.

[0054] An elastomer II 25 is mounted on the fixing bolt 29. In this embodiment, the elastomer II 25 is a torsion spring. One end of the torsion spring (elastic body II 25) is clamped on the left brake 22, and the other end is clamped on the right brake 21, ensuring that the left brake 22 and the right brake 21 remain in an open state.

[0055] The settings between the handle 1 and the brake body 2 are as follows:

[0056] The oil inlet and outlet ports 121 are connected to the gourd head 221 through an oil pipe.

[0057] The actual steps of this embodiment are as follows (oil is stored in the handle oil cylinder 12, and oil is not stored in the brake oil cylinder 220. If necessary, oil can also be stored in the oil pipe):

[0058] 1. Firmly squeeze the brake handle 11. The brake handle 11 rotates about the brake handle hinge axis II 112. At this time, the brake handle 11 compresses the handle piston rod 124 about the brake handle hinge axis I 111. The handle piston rod 124 pushes the handle piston 122 downward along the cylindrical cavity 120 in the handle cylinder 12. The oil flows into the brake cylinder 220 through the oil inlet and outlet 121, the oil pipe, the gourd head 221, and the oil inlet bolt 222.

[0059] Simultaneously with this step, the spring deforms (compresses).

[0060] 2. The oil in the brake cylinder 220 pushes the brake piston 223 upward through pressure, and at the same time pushes up the brake piston rod 224. The brake piston rod 224 pushes up the extension section 30, and the right brake 21 moves clockwise around the fixing bolt 29;

[0061] At the same time, the brake cylinder 220 is subjected to the reverse force of the oil, pushing the left brake 22 to move counterclockwise around the fixing bolt 29;

[0062] The elastic body II 25 (torsion spring) is deformed (compressed), and the two brake pads 27 complete the clamping action.

[0063] 3. Release the brake handle 11, the spring returns to its original shape, and the handle piston 122 returns to its original position;

[0064] At the same time, the oil in the brake cylinder 220 flows back to the handle cylinder 12 through the oil pipe;

[0065] At the same time, the elastic body II 25 (torsion spring) recovers its shape, causing the right brake 21 to move counterclockwise around the fixing bolt 29 and the left brake 22 to move clockwise around the fixing bolt 29;

[0066] The two brake pads 27 complete the release action.

[0067] Example 2: Based on Example 1, this product is applied to a bicycle, and the configuration is as follows:

[0068] An oil pipe I is provided on the oil inlet and outlet 121 of the handle cylinder 12 of the handle of the front wheel brake device, and a one-way valve I is provided on the oil pipe I; an oil pipe III is provided on the oil port of the brake cylinder 220 of the brake body of the front wheel brake device; an oil pipe II is provided on the oil inlet and outlet 121 of the handle cylinder 12 of the handle of the rear wheel brake device, and a one-way valve II is provided on the oil pipe II; an oil pipe IV is provided on the oil port of the brake cylinder 220 of the brake body of the rear wheel brake device; oil pipe I, oil pipe II, oil pipe III and oil pipe IV are connected by a four-way valve.

[0069] According to the feel and usage frequency of the front and rear wheel brakes, the oil pressure in the front wheel handle cylinder 12 and the rear wheel handle cylinder 12 are adjusted by one-way valve I and one-way valve II respectively, and then the valve of the four-way valve is adjusted to achieve precise control of the brake feel.

[0070] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A C-type brake body based on oil pressure, comprising a brake body (2), wherein the brake body (2) comprises a left brake (22) and a right brake (21), wherein the left brake (22) and the right brake (21) are both fixed with brake pads (27) via brake pad fixing bolts (26), characterized in that: The left brake (22) and the right brake (21) are hinged to each other; The left brake (22) is provided with a brake oil cylinder (220), a brake piston rod (224) with a brake piston (223) is provided in the brake oil cylinder (220), and the upper end of the brake piston rod (224) is hinged to the right brake (21); The brake oil cylinder (220) is provided with an oil port.

2. The hydraulic C-type brake body according to claim 1, characterized in that: The rightmost end point of the left brake (22) and the leftmost end point of the right brake (21) are hinged to each other; An extension section (30) is provided on the left side of the leftmost hinge point of the right brake (21); The upper end of the brake piston rod (224) is hinged to the extension section (30) of the right brake (21).

3. The hydraulic C-type brake body according to claim 2, characterized in that: The upper end of the brake piston rod (224) is hinged to the extension section (30) via a brake hinge shaft (28); The brake piston rod (224) is fixedly connected to the brake articulated shaft (28).

4. The oil pressure-based C-type brake body according to claim 3, characterized in that: The brake piston rod (224) is fixedly connected to the brake hinge shaft (28) via threads; The upper end of the brake piston rod (224) passes through the brake hinge shaft (28) and is provided with an adjusting bolt (23).

5. The oil pressure-based C-type brake body according to claim 1, characterized in that: An oil inlet bolt (222) is provided on the oil port of the brake oil cylinder (220), and a gourd head (221) is provided on the oil inlet bolt (222).

6. The hydraulic C-type brake body according to claim 1, characterized in that: The left brake (22) and the right brake (21) are hinged via a fixing bolt (29); The threaded section of the fixing bolt (29) serves as a frame fixer.

7. A hydraulically operated C-type brake body according to any one of claims 1 to 6, characterized in that: An elastic body II (25) is provided between the left brake (22) and the right brake (21).

8. A C-type brake grip based on oil pressure, comprising a grip (1), wherein the grip (1) comprises a brake handle (11) and a handlebar fixing member (13), characterized in that: A handle oil cylinder (12) is provided between the brake handle (11) and the handlebar fixing member (13); The proximal end of the brake handle (11) is hinged to the handle cylinder (12); A handle piston (122) is provided in the handle oil cylinder (12), and a handle piston rod (124) is provided at the upper end of the handle piston (122) and is hinged to the brake handle (11); The handle oil cylinder (12) is provided with oil inlet and outlet ports (121).

9. The oil pressure-based C-shaped brake handle according to claim 8, characterized in that: The hand piston rod (124) and the handle piston (122) are connected via a universal joint mechanism; An elastic body (123) is provided at the lower end of the handle piston (122).

10. A C-type brake device based on oil pressure, characterized in that: comprising the brake body of claim 1 and the grip of claim 8; The oil port of the brake body is connected to the oil inlet and outlet ports (121) via an oil pipe.

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