CN114110055A

CN114110055A - Hydraulic brake caliper

Info

Publication number: CN114110055A
Application number: CN202111443781.8A
Authority: CN
Inventors: 王晓鸿; 袁兆东
Original assignee: Kunshan Karasawa Clean Energy Technology Co ltd
Current assignee: Kunshan Karasawa Clean Energy Technology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-03-01

Abstract

The invention discloses a hydraulic brake caliper, comprising: an integrated brake caliper body including a first member and a second member, the first member and the second member being integrally provided; a first oil cylinder is formed in the first component, and a second oil cylinder is formed in the second component; the first member and the second member comprise a first connecting part and a second connecting part which are integrally arranged; oil passages communicated with the oil cylinder bodies are arranged in the first member and the second member, and one part of the oil passage is arranged in the first connecting part and the second connecting part so as to be communicated with the first oil cylinder and the second oil cylinder; the end of the oil passage forms a sealable opening having a higher level than the cylinder communicating therewith to enable gas in the oil passage to be discharged through the opening. Compared with the prior art, the structure has higher strength and is easier to discharge the air in the hydraulic system.

Description

Hydraulic brake caliper

Technical Field

The invention belongs to the field of brakes, and particularly relates to an improvement on a structure of an oil pressure brake.

Background

In the fields of bicycles, tricycles, motorcycles, electric bicycles, and the like. 4-piston caliper clips are widely used.

Split type 4 piston clamp in existing market, a calliper divide into left and right two parts, through two M6 screwed connection, and the reaction force of pressing from both sides tight dish during the brake transmits the easy fracture of screw on two M6 screws to lose the function, have very big risk.

The existing oil pressure disc brake oil path is not designed into a through oil path, and residual gas is easy to generate in the oil inlet process, so that the disc brake braking force is influenced.

There is a need to improve the structural strength and oil passages of existing brake calipers.

Disclosure of Invention

The invention aims to provide a brake caliper which has higher strength and is not easy to be structurally damaged by braking force. Another aspect provides a solution for easy removal of the participating gases.

Specifically, the present invention provides a hydraulic brake caliper, comprising:

an integrated brake caliper body including a first member and a second member, the first member and the second member being integrally provided;

a first oil cylinder is formed in the first component, and a second oil cylinder is formed in the second component;

the first member and the second member comprise a first connecting part and a second connecting part which are integrally arranged;

oil passages communicating the first oil cylinder and the second oil cylinder are arranged in the first member and the second member, and a part of the oil passages are arranged in the first connecting part and the second connecting part so as to communicate the first oil cylinder and the second oil cylinder;

the end of the oil passage forms a sealable opening having a higher level than the cylinder communicating therewith to enable gas in the oil passage to be discharged through the opening.

In a preferred aspect of the present invention, the oil passage levels arranged in the first and second connection portions gradually rise.

In a preferred aspect of the present invention, the oil passages disposed in the first and second connection portions have a symmetrical structure.

In a preferred aspect of the present invention, the oil passages arranged in the first and second connecting portions form at least one extended oil passage communicating with an outer surface of the connecting portion, and an end of the extended oil passage forms an opening sealable by the oil stop portion, the opening having a higher level than the first or second cylinder communicating therewith so that gas in the oil passage can be discharged from the opening.

In a preferred aspect of the present invention, an oil stop screw is included to seal a sealable opening formed at an end of the oil passage.

In a preferred embodiment of the present invention, the first connection portion and the second connection portion have a bilaterally symmetrical structure, and the horizontal height thereof gradually increases with respect to the gas position of the first member or the second member.

In a preferred form of the invention, the first and second members define a brake chamber for receiving a brake pad and a portion of a brake disc.

In a preferable scheme of the invention, the brake pad in the brake cavity is connected with the extending end of the piston in the oil cylinder.

In a preferred scheme of the invention, the reset spring plates are arranged in the brake cavity, and two ends of the reset spring plates with elastic reset functions are respectively connected with the brake pads on the left side and the right side of the brake cavity of the sub-brake disc.

In a preferred aspect of the present invention, the elastic return plate is fixed by a connecting rod fixed above the brake chamber and above the first member and the second member.

The invention has at least the following technical improvements:

a. the calliper of integral type is integrative to be forged and is formed, and intensity is better, is difficult to damage to the first component and the second component of calliper use connecting portion respectively to connect, have further strengthened the intensity of calliper.

b. The oil circuit design adopts a through oil circuit, which is beneficial to gas removal and improves the disc brake braking force. Two parts of the oil way are respectively provided with an opening with the horizontal height higher than that of the oil cylinder, so that gas in the oil way can be discharged from a higher exhaust port, and the brake failure caused by residual gas is prevented.

Drawings

FIG. 1 is a schematic view of the overall structure of a hydraulic brake caliper.

FIG. 2 is an exploded view of the hydraulic brake caliper.

Fig. 3 is a side view taken along the direction F shown in fig. 1.

Fig. 4 is a top view taken along the direction M of fig. 1.

Fig. 5 is a cross-sectional view taken along line a-a of fig. 3.

Fig. 6 is a sectional view along B-B in fig. 4.

Fig. 7 is a sectional view along C-C in fig. 4.

FIG. 8 is a view taken along the schematic view of FIG. 6 with the brake caliper body hidden and with the oil passages highlighted.

Detailed Description

The technical solutions of the present application are specifically described below with reference to the drawings, so as to help those skilled in the art understand the technical solutions of the present application, and the technical solutions are not limited to the scope of protection. The horizontal heights referred to in the present application are all relative horizontal heights when the hydraulic brake caliper is assembled to a vehicle.

Referring to fig. 1 and 2, a hydraulic brake caliper 100 is shown in an overall and exploded view. The brake caliper main body is of an integrated structure, and the integrated structure can be completed through integrated processes such as casting, CNC and the like.

The integrated process has higher strength than the prior art, can bear stronger braking force, and simultaneously keeps the structure of the brake caliper 100 from being damaged. The brake caliper 100 body includes a first member 1 and a second member 2, and the first member 1 and the second member 2 are integrally provided. Meanwhile, the first member 1 and the second member 2 include a first connection portion 31 and a second connection portion 32. the first member 1, the second member 2, the first connection portion 31, and the second connection portion 32 are integrally provided. The first member 1 and the second member 2 are generally symmetrical in overall structure.

Referring to fig. 2 and 6, since the first member 1 and the second member 2 are integrally formed and the first member 1 and the second member 2 are integrally symmetrical, the braking force generated when the brake caliper 100 operates can be uniformly transmitted to the first member 1 and the second member 2 through the piston and the first cylinder 101 and the second cylinder 201, so that the braking structure is not easily damaged by braking. Meanwhile, the first connecting part 31 and the second connecting part 32 of the first member 1 and the second member 2 are also integrally formed, so that the first connecting part 31 and the second connecting part 32 are not easily damaged. The present application overcomes the problem of using screws to assemble different parts of the brake caliper 100 that are easily damaged by braking forces.

A brake chamber 12 is formed between the first member 1 and the second member 2, and various components for braking are received in the brake chamber 12. The brake assembly includes a brake plate 202, the brake plate 202 is connected to the extended end 203 of the piston 200, and the brake plates 200 are distributed on two sides of the brake chamber 12. During braking, the brake pad 202 is driven by the piston to move towards the middle of the brake cavity 12 to clamp a brake disc (not shown in the figure) of the vehicle.

The brake element also includes a resilient return member 204. The elastic restoring member 204 is substantially a-shaped, and the upper end of the elastic restoring member 204 includes a fixing hole 205, the fixing hole 205 is installed on a fixing rod 206 above the brake chamber 12, and the fixing rod 206 is installed on the fixing holes 207 of the first member 1 and the second member 2. The resilient return member 204 is compressed when installed in the brake chamber 12 to maintain a resilient force against the brake plate 202. The elastic restoring member 204 is of an open-shaped sheet structure. The resilient return member 204 is mounted on a step 208 formed on the outer edge of the brake plate 202 when mounted. The elastic return member 204 is secured by a connecting rod 206 secured over the opening on the first and second members 1, 2.

The elastic reset piece 206 is simple in structure, the elastic reset piece 204 is further compressed when the brake is performed, the elastic reset piece 204 resets the brake pad 202 when the brake is stopped, and the piston 200 in the oil cylinder 201 is driven to reset after the brake pad 202 is pushed to reset.

Referring to fig. 3, 4 and 5, the first member of the hydraulic caliper forms a first cylinder 101 and a second cylinder 201. The first oil cylinder 101 and the second oil cylinder 201 are cavity structures arranged on the first member 1 and the second member 2. The first cylinder communication has a communication structure 501, and the communication structure 501 allows hydraulic oil in the first cylinder 101 to flow and exchange. The second cylinder communication has a communication structure 502, and the communication structure 502 allows hydraulic oil in the second cylinder 201 to flow and exchange. The communication structures 501 and 502 of the oil cylinders simultaneously allow oil pressure to be uniformly distributed on the piston 200, so as to push the piston 200 to move along the oil cylinder body 201 to push the brake pad 202 to move. As shown in fig. 5, a first pair of pistons 300 is disposed in the first cylinder 101, and a second pair of pistons 200 is disposed in the second cylinder 201.

The first and second members of the hydraulic caliper 100 form a first cylinder 101 and a second cylinder 201. The cylinder bodies of the first oil cylinder 101 and the second oil cylinder 201 are cavity structures arranged in the first component 1 and the second component 2, the first oil cylinder and the second oil cylinder are respectively provided with communication structures 501 and 502, and the communication structures 501 and 502 allow the hydraulic pressure in the cylinder bodies to be in flow exchange. The communication structures 501 and 502 of the first oil cylinder 101 and the second oil cylinder 201 simultaneously allow oil pressure to be uniformly distributed on the

pistons

200 and 300, so as to push the piston 200 to move along the oil cylinder body to push the brake pad to move.

An oil passage 500 communicating with the cylinder block is provided in the first member 1 and the second member 2, the oil passage 500 includes the communication structures 501 and 502 described above, and another part of the oil passage 500 is arranged in the first connecting portion 31 and the second connecting portion 32. To communicate the cylinder block 101 of the first member 1 and the cylinder block 201 of the second member 2. The oil passages 500 arranged in the first and

second connection portions

31 and 32 gradually rise in level (refer to reference numeral 503 in fig. 8). The oil path comprises a first pipeline 504 and a second pipeline 505, and the first pipeline 504 and the second pipeline 505 are in a symmetrical structure. The first conduit 504 and the second conduit 505 are substantially V-shaped. The first pipe 504 and the second pipe 505 gradually rise to form a communicated junction. The first pipe extends upward to form an extending oil path 506, the extending oil path 506 extends to the surface of the second connecting portion 32, and an opening 401 is formed on the surface of the extending portion. The surface of the opening 401 is sealed by an oil stop screw 402, and may be reliably sealed by another sealing member. The gradual rising of the extension part 506 has a guiding effect on the gas passing through the first pipeline 504 and the second pipeline 505, and the horizontal height of the formed opening 401 is higher than the height of other parts of the first pipeline 504 and the second pipeline 505 of the oil cylinder, so that bubbles can reach the opening 401 along the pipelines, and the gas in the oil path can be discharged through the opening 401. The hydraulic oil flows along the first pipe 504 and the second pipe 505 during the flowing process, and if the gas rises into the extended oil path 506 during the flowing process of the hydraulic oil, the hydraulic oil can be discharged through the exhaust screw 402. When exhausting, a user opens the exhaust screw 402, adds hydraulic oil into the opening 401 or presses the brake, and fixes the exhaust screw 402 after the gas is exhausted, thereby completing the exhaust.

The second conduit 504 communicates with the cylinder 201 of the second member 2. The second component cylinder 2 is connected 701 to a third pipe 701, the rising of the third pipe 701 gradually forms an opening 403 which can be sealed by an oil stop portion at the end, the horizontal height of the opening 403 is higher relative to the height of the second component cylinder 201, and the opening 403 is sealed 404 by an oil stop screw.

In the above solution, the end of the third pipe 701 forms an opening 403 which can be sealed by an oil stop screw 404, and the horizontal height of the opening 403 is higher relative to the oil cylinder body communicated with the opening so that the gas in the oil path can be discharged from the opening.

Preferably, the first connecting portion 31 and the second connecting portion 32 are in a left-right symmetrical structure, and the first conduit 504 and the second conduit 503 are respectively disposed in the left-right symmetrical structure of the connecting portions.

The first conduit 504 and the second conduit 505 have a rising structure, so that bubbles can rise along the pipeline to be removed at the highest opening 401 of the conduit. The third pipe 701 has a rising structure so that the bubbles of the second cylinder 201 can rise along the structure of the opening 403 of the third pipe 701, facilitating the discharge of the bubbles at the highest opening 403 of the pipe.

When braking, a user applies pressure to the brake handle, brake oil is forced to enter the first oil cylinder 101 (in direction) through the oil inlet pipeline 601 through the force transmission system, oil in the first oil cylinder 101 transmits oil pressure through the communication structure 501, and part of oil in the first oil cylinder enters the second pipeline 505 through the first pipeline 504. Wherein the air bubbles in the first pipeline or the first oil cylinder rise and float to the extended oil path 506 and stay for being discharged by opening the oil stop screw 402 later. Oil from the second conduit 505 enters the second cylinder 201, and the oil in the second cylinder is transferred to the oil pressure through the communication structure 502. The first piston 300 and the second piston 200 are pressed to extend outwards, and the brake pads are pushed to clamp the brake disc to perform a braking action. The air bubbles in the second oil cylinder float to the third pipeline 701 and are retained so as to be convenient for opening the oil-stop screw 404 and then discharging.

In summary, an oil path 500 communicating with the oil cylinder body is arranged in the first member 1 and the second member 2, and a part of the oil path is arranged in the connecting part 3 to communicate the oil cylinder body 501 of the first member and the oil cylinder body 501' of the second member; the end of the oil passage forms an opening 403 which can be sealed by an oil stop, the opening 403 being at a higher level relative to the cylinder block communicating therewith to enable gas in the oil passage to be discharged from the opening. While the junction extension duct 506 of the first duct 504 and the second duct portion 505 of the first member 1 and the second member 2 is able to exhaust. Compared with the prior art, the problem of brake failure caused by air inflow of an oil way system is reduced.

Claims

1. A hydraulic brake caliper, comprising:

2. The hydraulic brake caliper according to claim 1, wherein the oil passages disposed in the first and second connecting portions gradually rise in level.

3. A hydraulic brake caliper according to claim 2, wherein the oil passages arranged in the first and second connection portions are of symmetrical configuration.

4. A hydraulic brake caliper according to claim 3, wherein the oil passages disposed in the first and second connecting portions form at least one extended oil passage communicating with an outer surface of the connecting portion, and an end of the extended oil passage forms an opening sealable by the oil stop portion, the opening having a higher level than the first or second cylinder communicating therewith so that gas in the oil passage can be discharged through the opening.

5. The hydraulic brake caliper according to claim 4, wherein an oil stop screw is included for sealing a sealable opening formed at an end of the oil passage.

6. A hydraulic brake caliper according to any one of claims 1 to 5, wherein the first and second connecting portions are of a left-right symmetrical configuration and have a level that is gradually raised with respect to the gas position of the first or second member.

7. A hydraulic brake caliper according to claim 1 wherein the first and second members define a brake cavity that receives a brake pad and a portion of a brake disc.

8. The hydraulic brake caliper of claim 7, wherein the brake pads in the brake chamber are connected to the piston extension in the cylinder.

9. The hydraulic brake caliper of claim 1, wherein the brake cavity is provided with a reset spring, and two ends of the reset spring having an elastic reset function are respectively connected with the brake pads on the left and right sides of the brake cavity of the sub-brake disc.

10. A hydraulic brake caliper according to claim 1, wherein said resilient return pads are secured by tie rods secured to the first and second members above said brake chamber.