A high-efficiency heat dissipation oil pipe joint device for brake calipers

Abstract

A high-efficiency heat dissipation oil pipe joint device for a brake caliper, comprising a caliper and an oil pipe; a hydraulic channel is provided inside the caliper; one end of the oil pipe is connected to the caliper, and the inside of the oil pipe is connected to the hydraulic channel; it also includes a heat sink connected between the caliper and the oil pipe, a heat dissipation channel is provided inside the heat sink, one end of the heat dissipation channel is connected to the hydraulic channel, and the other end is connected to the inside of the oil pipe; the utility model can effectively increase the distance between the caliper body and the end of the oil pipe by providing a heat sink between the oil pipe and the caliper body, so that the heat on the caliper body is quickly consumed through the conduction of the heat sink, and the hydraulic oil in the caliper body is cooled by the heat dissipation channel of the heat sink in the process of returning to the oil pipe before reaching the oil pipe, thereby ensuring that the oil pipe will not soften and crack due to excessive temperature, thereby effectively increasing the service life of the oil pipe.

Description

Technical Field

[0001] The utility model relates to the field of brake calipers, in particular to a high-efficiency heat dissipation oil pipe joint device of a brake caliper. Background Art

[0002] Disc brakes consist of a brake disc connected to the wheel and a brake caliper on the edge of the disc. When braking, high-pressure brake fluid pushes the brake pads to clamp the brake disc to produce a braking effect. Early disc brake systems were mostly used in the motorcycle field, but were not popular in the bicycle field due to their high prices and heavy weight. However, with the research and development of related technologies and materials in recent years, the weight and price of disc brake systems have been improved. Therefore, more and more bicycles on the market are beginning to use disc brake systems.

[0003] As a type of hydraulic brake system, the disc brake also uses an oil pipe to connect the brake caliper and the brake handle, so that the hydraulic oil is guided from the brake handle to the brake caliper through the hydraulic oil pipe, so that the brake caliper is clamped to complete the braking action. Therefore, the two ends of the oil pipe are fixedly connected to the brake caliper and the brake handle respectively. In the prior art, the installation and connection method of the oil pipe is generally achieved by tightening the fastening screws fixedly sleeved on the end of the oil pipe into the hydraulic channel of the brake caliper or the brake handle.

[0004] For example, the Chinese patent with patent number ZL200820001732.2 discloses: "A pipe joint device for a bicycle brake caliper, which is a screw joint used for screw connection to the brake caliper, and is integrally provided with a connecting portion for inserting a sleeve at the end of the hydraulic oil pipe, and is tightened at the connection position of the hydraulic oil pipe and the screw joint by a metal sleeve, and a tightening section that can engage and lock with the screw joint is formed at one end of the sleeve adjacent to the screw joint, thereby effectively strengthening the connection strength and tightness between the hydraulic oil pipe and the screw joint, avoiding the problem of the hydraulic oil pipe falling off or leaking oil, and can use the screw joint and the sleeve to produce heat dissipation, reduce the temperature transmitted to the hydraulic oil pipe, and further ensure the connection efficiency of the hydraulic oil pipe."

[0005] However, as mentioned in the above patent, during the use of the existing disc brake system, the friction between the brake discs will cause the temperature of the brake discs to rise to even more than 100°C, and the heat on the brake disc will also be transferred to the brake caliper. Since the thermal conductivity of the existing hydraulic oil is relatively good, the temperature of the hydraulic oil in the brake caliper will rise to a very high level during the braking process, and one end of the oil pipe connected to the brake caliper may soften or even crack due to the increase in the temperature of the hydraulic oil here, which will lead to problems such as oil leakage and shedding of the oil pipe.

[0006] Including the solutions described in the above patents, the oil pipes in the prior art are very close to the hydraulic channels inside the brake calipers. It can even be said that the ends of the oil pipes are in direct contact with the brake calipers without any transition in between. This causes the temperature on the brake calipers and the heat of the hydraulic oil to be directly transferred to the oil pipes with less loss, which further increases the possibility of softening of the oil pipes. Therefore, in view of the above problems, it is urgently necessary to develop an oil pipe joint device to increase the heat loss of the brake calipers and the hydraulic oil therein to avoid softening and cracking of the ends of the oil pipes. Summary of the invention

[0007] In order to overcome the disadvantage that one end of an oil pipe connected to a brake caliper in a disc brake system in the prior art is easily softened and cracked, the utility model provides a high-efficiency heat dissipation oil pipe joint device for a brake caliper.

[0008] The utility model solves the technical problem by providing a high-efficiency heat dissipation oil pipe joint device for a brake caliper, comprising a caliper and an oil pipe; a hydraulic passage is provided inside the caliper; one end of the oil pipe is connected to the caliper, and the inside of the oil pipe is communicated with the hydraulic passage; and a heat dissipation element connected between the caliper and the oil pipe is provided with a heat dissipation passage inside the heat dissipation element, one end of the heat dissipation passage is communicated with the hydraulic passage, and the other end of the heat dissipation passage is communicated with the inside of the oil pipe.

[0009] During use, the surface of the caliper is conducted to the heat sink through metal-to-metal transfer and partially dissipated to the outside from the heat sink. The hydraulic oil inside the caliper will first pass through the heat dissipation channel in the heat sink when returning to the oil pipe, and the heat of the hydraulic oil in the heat dissipation channel can also be dissipated to the outside through the outer wall of the heat sink.

[0010] The connection structure between the heat sink, the caliper and the oil pipe is further provided with a connecting column protruding from one end of the heat sink connected to the caliper, the connecting column is inserted in the hydraulic channel and forms a matching connection therewith, and a connecting groove is provided on the other end of the heat sink connected to the oil pipe, and a connecting piece is also provided on the end of the oil pipe, the connecting piece is inserted in the connecting groove and forms a matching connection therewith.

[0011] The connection column and the hydraulic oil pipe are further matched in that the peripheral side of the connection column and the inner wall of the hydraulic channel are both provided with threads, and the connection column is connected in the hydraulic channel through threaded matching.

[0012] The structure of the connecting piece and its matching mode with the connecting groove are further: the connecting piece includes a fastening screw sleeved on the outer surface of the oil pipe, and the connecting groove is also provided with a thread, and the fastening screw is connected to the connecting groove through thread matching.

[0013] The structure of the connecting piece is further improved, and the connecting piece also includes an oil needle inserted into the end of the oil pipe and an olive head sleeved on the surface of the oil pipe, and a circle of limiting steps is also protruded in the heat dissipation channel of the heat sink. When the fastening screw thread is engaged with the connecting groove, the oil needle abuts against the limiting step, and the olive head is clamped between the oil needle and the fastening screw.

[0014] The heat dissipation patterns on the surface of the heat dissipation element are further arranged, and a plurality of heat dissipation grooves are arranged on the outer surface of the heat dissipation element along its axial direction.

[0015] The structure of the caliper is further that a connecting platform is provided on the surface of the caliper, the hydraulic channel passes through the connecting platform, and the heat sink is connected to the connecting platform.

[0016] The utility model includes a setting mode of a heat dissipation component, wherein the heat dissipation component is a metal pipe component.

[0017] The utility model also includes another arrangement of a heat sink, wherein the heat sink includes an outer shell and a plurality of thin metal tubes, the heat dissipation channel is opened in the outer shell, and the thin metal tubes are passed through the heat dissipation channel, and two fixing plates for fixing the two ends of the thin metal tubes are connected to the side walls of the heat dissipation channel, and the two fixing plates further divide the heat dissipation channel into a heat dissipation section and liquid passing sections located on the upper and lower sides of the heat dissipation section, the heat dissipation section and the liquid passing section are isolated from each other, and the upper and lower liquid passing sections are connected through the thin metal tubes.

[0018] In the above-mentioned heat sink arrangement, the heat sink section is further connected to the outside world. The heat sink groove is arranged outside the heat sink section, and the heat sink groove also penetrates the side wall of the heat sink section, so that the inside of the heat sink section is connected to the outside world.

[0019] The connection and installation method of the utility model is as follows: when connecting the oil pipe to the caliper, firstly, the connection column of the heat sink is inserted into the hydraulic channel of the caliper, and the heat sink is tightened on the caliper through threaded matching, and then the fastening screw and the olive head are sequentially sleeved on the surface of the oil pipe, and then the oil needle is plugged and fixed on the end of the oil pipe, and then the end of the oil pipe is inserted into the connection groove of the heat sink, and finally the fastening screw is moved and threadedly matched into the connection groove. At this time, the caliper, the heat sink and the oil pipe are installed and connected.

[0020] The beneficial effects of the utility model are:

[0021] 1. The heat sink disposed between the oil pipe and the caliper can effectively increase the distance between the caliper and the end of the oil pipe, so that the heat on the caliper is quickly consumed through the conduction of the heat sink. Similarly, the hydraulic oil in the caliper is cooled by the heat dissipation channel of the heat sink when it flows back to the oil pipe, and then reaches the oil pipe, ensuring that the oil pipe will not soften and crack due to excessive temperature, effectively increasing the life of the oil pipe;

[0022] 2. The heat sink is connected to the caliper and oil pipe by threaded fit, which makes the connection firm and the disassembly and assembly between the three parts quicker and more convenient;

[0023] 3. There are several heat dissipation grooves on the surface of the heat sink, so that the heat in the heat dissipation channel can be dissipated more quickly. When the bicycle is in use, the air flows through the heat sink due to the presence of the heat dissipation grooves, and the airflow can be temporarily retained at the heat dissipation grooves to help further dissipate the heat;

[0024] 4. Whether the heat sink is configured as a metal pipe as a whole, or relies on a combination of an outer shell and several metal tubes, the excellent thermal conductivity of the metal material can further increase the speed of heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0026] Figure 2 It is an exploded schematic diagram of the first embodiment of the utility model.

[0027] Figure 3 It is a partial cross-sectional view of the first embodiment of the utility model.

[0028] Figure 4 yes Figure 3 A magnified schematic diagram of center A.

[0029] Figure 5 It is a structural schematic diagram of a heat sink according to a first embodiment of the utility model.

[0030] Figure 6 It is a structural schematic diagram of the heat sink of the second embodiment of the utility model.

[0031] Figure 7 It is a cross-sectional view of the heat sink of the second embodiment of the utility model.

[0032] Numbers in the figure: 1. Caliper; 2. Hydraulic channel; 3. Oil pipe; 4. Heat sink; 5. Heat dissipation channel; 6. Connecting column; 7. Connecting groove; 8. Connecting piece; 9. Fastening screw; 10. Oil needle; 11. Olive head; 12. Limiting step; 13. Heat dissipation groove; 14. Connecting platform; 15. Housing; 16. Metal capillary; 17. Fixing plate; 18. Heat dissipation section; 19. Liquid passage section. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0035] Embodiment 1

[0036] Combination Figures 1 to 5 The device is a high-efficiency heat dissipation oil pipe joint device for a brake caliper, comprising a caliper 1 and an oil pipe 3; a hydraulic channel 2 is provided inside the caliper 1; one end of the oil pipe 3 is connected to the caliper 1, and the inside of the oil pipe 3 is connected to the hydraulic channel 2; and a heat dissipation element 4 is also provided between the caliper 1 and the oil pipe 3, a heat dissipation channel 5 is provided inside the heat dissipation element 4, one end of the heat dissipation channel 5 is connected to the hydraulic channel 2, and the other end thereof is connected to the inside of the oil pipe 3.

[0037] In this embodiment, the heat sink 4 is a metal pipe, and the metal pipe is made of copper.

[0038] During use of this embodiment, the surface of the caliper 1 is conducted to the heat sink 4 through metal-to-metal transfer, and is partially dissipated to the outside from the heat sink 4. The hydraulic oil inside the caliper 1 will first pass through the heat dissipation channel 5 in the heat sink 4 when returning to the oil pipe 3, and the heat of the hydraulic oil in the heat dissipation channel 5 can also be dissipated to the outside through the outer wall of the heat sink 4.

[0039] In this embodiment, a connecting column 6 is protruded from one end of the heat sink 4 connected to the caliper 1, and the connecting column 6 is inserted in the hydraulic channel 2 and forms a mating connection therewith, while a connecting groove 7 is provided on the other end of the heat sink 4 connected to the oil pipe 3, and a connecting member 8 is also provided on the end of the oil pipe 3, and the connecting member 8 is inserted in the connecting groove 7 and forms a mating connection therewith.

[0040] In this embodiment, threads are provided on the peripheral side of the connecting column 6 and the inner wall of the hydraulic channel 2 , and the connecting column 6 is connected to the hydraulic channel 2 through threaded fitting.

[0041] In this embodiment, the connecting member 8 includes a fastening screw 9 sleeved on the outer surface of the oil pipe 3, and the connecting groove 7 is also provided with a thread. The fastening screw 9 is connected to the connecting groove 7 through threaded fitting.

[0042] In this embodiment, the diameter of the threaded opening of the hydraulic channel 2 on the caliper 1 is consistent with the diameter of the connecting groove 7, so the fastening screw 9 can also be directly connected to the hydraulic channel 2 of the caliper 1 together with the oil pipe 3, so that the heat sink 4 can be installed or removed as an accessory according to the needs of the user, and can also be sold separately as an accessory when it is sold.

[0043] In this embodiment, the connecting member 8 also includes an oil needle 10 inserted into the end of the oil pipe 3 and an olive head 11 sleeved on the surface of the oil pipe 3, and a circle of limiting steps 12 are also protruding in the heat dissipation channel 5 of the heat sink 4. When the fastening screw 9 is threadedly engaged with the connecting groove 7, the oil needle 10 abuts against the limiting step 12, and the olive head 11 is clamped between the oil needle 10 and the fastening screw 9.

[0044] In this embodiment, a plurality of heat dissipation grooves 13 are arranged on the outer surface of the heat dissipation element 4 along the axial direction thereof.

[0045] In this embodiment, a connecting platform 14 is further provided on the surface of the caliper 1 , the hydraulic channel 2 passes through the connecting platform 14 , and the heat sink 4 is connected to the connecting platform 14 .

[0046] The connection and installation method of this embodiment is as follows: when connecting the oil pipe 3 to the caliper 1, first, insert the connecting column 6 of the heat sink 4 into the hydraulic channel 2 of the caliper 1, and tighten the heat sink 4 to the caliper 1 through threaded fitting, then sequentially sleeve the fastening screw 9 and the olive head 11 on the surface of the oil pipe 3, and then insert and fix the oil needle 10 on the end of the oil pipe 3, then insert the end of the oil pipe 3 into the connecting groove 7 of the heat sink 4, and finally move the fastening screw 9 and threadably fit it into the connecting groove 7. At this time, the caliper 1, the heat sink 4 and the oil pipe 3 are installed and connected.

[0047] The advantages of this embodiment are: the heat dissipation efficiency between the caliper and the oil pipe is increased by the heat sink, ensuring that the oil pipe will not soften and crack due to excessive temperature. At the same time, since the heat sink is removed as an accessory, the oil pipe can be directly connected to the caliper, making the use and sales of the heat sink more flexible.

[0048] Embodiment 2

[0049] Combination Figures 6 to 7 As shown, the main difference between this embodiment and the above-mentioned embodiment 1 lies in the arrangement of the heat sink.

[0050] In this embodiment, the heat sink 4 includes an outer shell 15 and a plurality of thin metal tubes 16. The heat dissipation channel 5 is opened in the outer shell 15, and the thin metal tubes 16 are passed through the heat dissipation channel 5. Two fixing plates 17 for fixing the two ends of the thin metal tubes 16 are connected to the side walls of the heat dissipation channel 5. The two fixing plates 17 also divide the heat dissipation channel 5 into a heat dissipation section 18 and liquid passing sections 19 located on the upper and lower sides of the heat dissipation section 18. The heat dissipation section 18 and the liquid passing section 19 are isolated from each other, and the upper and lower liquid passing sections 19 are connected through the thin metal tubes 16.

[0051] In this embodiment, the metal tube 16 is made of copper.

[0052] In this embodiment, the heat dissipation groove 13 is arranged outside the heat dissipation section 18, and the heat dissipation groove 13 also penetrates the side wall of the heat dissipation section 18, so that the inside of the heat dissipation section 18 is connected with the outside.

[0053] The remaining structures and methods in this embodiment are consistent with those in the above-mentioned embodiment 1 and will not be described in detail here.

[0054] The advantage of this embodiment is that by relying on the setting of the outer shell and multiple metal tubes inside it, the hydraulic oil can be divided into multiple strands and pass through the metal tubes during the process of passing through the heat sink, and the outer wall of the metal tube is in contact with the outside air and can quickly dissipate the heat into the air, so that the heat dissipation speed is further improved.

[0055] The above specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An efficient heat dissipation oil pipe joint device for a brake caliper, comprising a caliper (1) and an oil pipe (3); a hydraulic passage (2) is provided inside the caliper (1); one end of the oil pipe (3) is connected to the caliper (1), and the inside of the oil pipe (3) is communicated with the hydraulic passage (2); the characteristics are as follows: It also includes a heat sink (4) connected between the caliper (1) and the oil pipe (3), and a heat dissipation channel (5) is provided inside the heat sink (4). One end of the heat dissipation channel (5) is connected to the hydraulic channel (2), and the other end is connected to the inside of the oil pipe (3).

2. The high-efficiency heat dissipation oil pipe joint device of a brake caliper according to claim 1, characterized in that: A connecting column (6) is protruding from one end of the heat sink (4) connected to the caliper (1), and the connecting column (6) is inserted into the hydraulic channel (2) and forms a matching connection therewith, while a connecting groove (7) is provided on the other end of the heat sink (4) connected to the oil pipe (3), and a connecting member (8) is also provided on the end of the oil pipe (3), and the connecting member (8) is inserted into the connecting groove (7) and forms a matching connection therewith.

3. The high-efficiency heat dissipation oil pipe joint device of a brake caliper according to claim 2, characterized in that: The peripheral side of the connecting column (6) and the inner wall of the hydraulic channel (2) are both provided with threads, and the connecting column (6) is connected to the hydraulic channel (2) through threaded matching.

4. The high-efficiency heat dissipation oil pipe joint device of a brake caliper according to claim 2, characterized in that: The connecting member (8) includes a fastening screw (9) sleeved on the outer surface of the oil pipe (3), and the connecting groove (7) is also provided with a thread. The fastening screw (9) is connected to the connecting groove (7) through threaded matching.

5. The high-efficiency heat dissipation oil pipe joint device of a brake caliper according to claim 4, characterized in that: The connecting member (8) also includes an oil needle (10) inserted into the end of the oil pipe (3) and an olive head (11) sleeved on the surface of the oil pipe (3), and a circle of limiting steps (12) is also protruded in the heat dissipation channel (5) of the heat dissipation member (4). When the fastening screw (9) is threadedly engaged with the connecting groove (7), the oil needle (10) abuts against the limiting step (12), and the olive head (11) is clamped between the oil needle (10) and the fastening screw (9).

6. The high-efficiency heat dissipation oil pipe joint device of a brake caliper according to claim 1, characterized in that: A plurality of heat dissipation grooves (13) are arranged on the outer surface of the heat dissipation element (4) along its axial direction.

7. The high-efficiency heat dissipation oil pipe joint device of a brake caliper according to claim 1, characterized in that: A connecting platform (14) is also provided on the surface of the caliper (1), the hydraulic channel (2) passes through the connecting platform (14), and the heat sink (4) is connected to the connecting platform (14).

8. A high-efficiency heat dissipation oil pipe joint device for a brake caliper according to any one of claims 1 to 7, characterized in that: The heat sink (4) is a metal pipe.

9. A high-efficiency heat dissipation oil pipe joint device for a brake caliper according to any one of claims 1 to 7, characterized in that: The heat sink (4) comprises a shell (15) and a plurality of thin metal tubes (16); the heat dissipation channel (5) is provided in the shell (15), and the thin metal tubes (16) are passed through the heat dissipation channel (5); and two fixing plates (17) for fixing the two ends of the thin metal tubes (16) are connected to the side walls of the heat dissipation channel (5); and the two fixing plates (17) further divide the heat dissipation channel (5) into a heat dissipation section (18) and liquid passing sections (19) located at the upper and lower sides of the heat dissipation section (18); the heat dissipation section (18) and the liquid passing section (19) are isolated from each other, and the upper and lower liquid passing sections (19) are connected via the thin metal tubes (16).

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