Oil needle assembly

Abstract

This invention proposes an oil needle assembly, comprising: a clamping member having a first internal space and an engagement portion circumferentially provided on one end face; an oil needle having an integrally connected annular protrusion and a first valve stem and a second valve stem disposed at both ends of the annular protrusion, the first valve stem and the second valve stem being internally connected to each other, and an engagement groove being recessed on the side of the annular protrusion corresponding to the engagement portion; wherein, the engagement groove of the oil needle and the engagement portion of the clamping member are engaged with each other, so that the oil needle and the clamping member form a tight fit to achieve a leak-proof effect, and the first valve stem is assembled inside the oil pipe joint, while the second valve stem passes through the first internal space of the clamping member and communicates with the inside of the oil pipe valve.

Description

Oil needle assembly Technical Field

[0001] This invention relates to the technical field of bicycle hydraulic braking systems, and more particularly to an oil needle assembly installed between a connector and an oil pipe valve. Prior Technology

[0002] Note: With the increasing popularity of sports, many places have begun to plan dedicated bike lanes for public use. Besides physical exercise, cycling also promotes interpersonal communication, leading to a growing number of people choosing cycling as their form of exercise. In existing bicycle hydraulic disc brake systems, the leak-proof method for the hydraulic hose connector typically involves placing a gasket between the connector body and the caliper body. The gasket is secured with bolts, causing it to deform under pressure and achieve a sealing effect. However, using a gasket as a leak-proof structure still has several shortcomings. Since the leak-proof effect of the gasket relies on the uniformity of pressure, when the caliper end face has manufacturing errors or installation angle deviations, the gasket may leak due to insufficient sealing. Secondly, the gasket will fatigue after prolonged use, leading to a decrease in its leak-proof effect. Summary of the Invention

[0003] Given that conventional oil pipe joints use gaskets as a leak-proof structure, which leads to leakage due to uneven stress, temperature changes, or repeated disassembly and assembly, the main objective of this invention is to provide an oil needle assembly to solve the above-mentioned deficiencies.

[0004] To achieve the above objectives and effects, this invention proposes an oil needle assembly, comprising: a clamping member having a first internal space and an insert portion circumferentially provided on one end face; an oil needle having an integrally connected annular protrusion and a first valve stem and a second valve stem disposed at both ends of the annular protrusion, the first valve stem and the second valve stem being internally connected to each other, and an insert groove being recessed on the side of the annular protrusion corresponding to the insert portion; wherein, the insert groove of the oil needle and the insert portion of the clamping member are interlocked, so that the oil needle and the clamping member form a tight fit to achieve a leak-proof effect, and the first valve stem is connected to the inside of the oil pipe joint, while the second valve stem passes through the first internal space of the clamping member and communicates with the inside of the oil pipe valve.

[0005] The two sides of the insert part have a first inclined surface, and the two sides of the groove wall of the insert groove have a second inclined surface. The outer diameter of the insert part is larger than the inner diameter of the insert groove. When the insert part is inserted into the insert groove, the first inclined surface will be deformed by the pressure of the second inclined surface. The deformation of the first inclined surface allows the clamping member to be tightly connected with the oil needle.

[0006] The oil pipe joint has an installation part, a connecting part, and a short neck section connecting the installation part and the connecting part. The inner circumferential surface of the installation part is provided with an oil hole. The connecting part is provided with an interconnected oil passage and an assembly interface. The oil passage is opposite to the assembly interface, one end of which extends through the short neck section and communicates with the oil hole. The assembly interface is connected to the first valve stem.

[0007] The oil pipe valve has a second internal space, which is connected to the second valve stem of the oil needle. The inner circumferential surface of the second internal space is provided with an internal thread section that is threaded together with the external thread section of the connecting pipe.

[0008] The oil pipe connector is installed on the caliper body.

[0009] The second valve stem is connected to the oil pipe. Simple Explanation of the Diagram

[0010] The first figure is an exploded three-dimensional view of this novel invention. The second figure is a three-dimensional composite diagram of this novel invention. The third figure is a cross-sectional view (I) of this novel combination. Figure 4 is a partial enlarged view of the present invention based on Figure 3. Figure 5 is a magnified view of a portion of the operation of this novel model based on Figure 4 (I). Figure 6 is a partial enlarged view (II) of the operation of this new model based on Figure 4. Figure 7 is an enlarged view of this novel model based on Figure 6. Figure 8 is a cross-sectional view (II) of this novel combination. Figure 9 is a cross-sectional view of the new connecting oil pipe. Figure 10 is a schematic diagram of the block of this new type installed on the caliper body. Implementation

[0011] The present invention will now be described in detail with reference to the accompanying drawings and in the form of embodiments. The drawings used herein are for illustrative purposes only and to assist in the description. They may not represent the actual proportions and precise configurations of the present invention after implementation. Therefore, the scope of the present invention in actual implementation should not be limited by the proportions and configurations of the accompanying drawings. This should be stated in advance.

[0012] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having” and any variations thereof in the specification, claims and foregoing drawings of this application are intended to cover non-exclusive inclusion; the terms “first,” “second,” etc., in the specification, claims or foregoing drawings of this application are used to distinguish different objects and not to describe a particular order.

[0013] Please refer to Figures 1 through 10. This new type is an oil needle assembly, installed between the oil pipe connector 1 and the oil pipe valve 2, comprising:

[0014] The clamping member 3 has a first internal space 30 and a fitting portion 31 is provided around one end face. The fitting portion 31 has a first inclined surface 310 on both sides.

[0015] The oil needle 4 has an integrally connected annular protrusion 40 and a first valve stem 41 and a second valve stem 42 disposed at both ends of the annular protrusion 40. The first valve stem 41 and the second valve stem 42 are internally connected to each other. The annular protrusion 40 is provided with a recessed fitting groove 400 on the side corresponding to the fitting part 31. The groove walls on both sides of the fitting groove 400 are respectively provided with a second inclined surface 401.

[0016] Since the outer diameter of the fitting part 31 is larger than the inner diameter of the fitting groove 400, when the fitting part 31 is inserted into the fitting groove 400, its first inclined surface 310 will be deformed by the pressure of the second inclined surface 401, as shown in Figures 4 to 7. The deformation of the first inclined surface 310 allows the oil needle 4 and the clamping member 3 to fit tightly together, achieving a leak-proof effect. The first valve stem 41 of the oil needle 4 is connected to the inside of the oil pipe joint 1, and the second valve stem 42 of the oil needle 4 passes through the first internal space 30 of the clamping member 3 and communicates with the inside of the oil pipe valve 2.

[0017] The foregoing are the main technical features of the main embodiment of this invention, which correspond to the content of claim 1 of the patent application of this invention, so that the purpose and implementation mode of this invention can be understood in detail. The technical features described in the other appended claims are detailed descriptions or additional technical features of the content of claim 1 of the patent application, and are not used to limit the scope of claim 1 of the patent application. It should be understood that claim 1 of the patent application of this invention does not necessarily include the technical features described in the other appended claims.

[0018] The features and composition of each component of this invention will be further described below. Based on the above technical features, the oil pipe connector 1 has a mounting part 10, a connecting part 11, and a short neck section 12 connecting the mounting part 10 and the connecting part 11. The inner circumferential surface of the mounting part 10 is provided with an oil hole 100. The outer circumferential surface of the connecting part 11 is provided with an external thread section 110, and the interior is provided with an interconnected oil passage 111 and an assembly interface 112. The oil passage 111 is opposite to the assembly interface 112, one end of which extends through the short neck section 12 and communicates with the oil hole 100. The assembly interface 112 is assembled with the first valve stem 41.

[0019] Furthermore, based on the aforementioned technical features, the oil pipe valve 2 has a second internal space 20, which is connected to the second valve stem 42 of the oil needle 4, and the inner circumferential surface of the second internal space 20 is partially provided with an internal thread section 21 that is threaded together with the external thread section 110 of the connecting pipe 11.

[0020] For installation, first assemble the needle 4 and the clamping member 3 to form a needle assembly, then place the needle assembly in the second internal space 20 of the tubing valve 2. Next, lock the external thread section 110 of the connector 11 of the tubing connector 1 into the internal thread section 21 of the tubing valve 2, and connect the first valve stem 41 of the needle 4 to the interface 112 of the connector 11 so that the first valve stem 41 can be connected inside the tubing connector 1. The second valve stem 42 passes through the first internal space 30 of the clamping member 3 and communicates with the second internal space 20 inside the tubing valve 2. The short neck section 12 of the tubing connector 1 abuts against the top edge of the tubing valve 2, and the mounting part 10 is exposed on the outside of the top edge of the tubing valve 2 so that the mounting part 10 can be installed on the caliper body 5. Finally, connect the tubing 6 to the second valve stem 42. When in use, press the brake lever to allow brake fluid to flow through the oil pipe 6, the second valve stem 42, the first valve stem 41, the oil passage 111, and the oil hole 100 into the caliper body 5. This forces the disc piston and the brake pads to clamp onto both sides of the brake disc, achieving the braking effect of stopping the bicycle wheel axle from rotating.

[0021] It is worth mentioning that the oil needle assembly formed by the interlocking groove 400 of the oil needle 4 and the interlocking part 31 of the clamping member 3 can not only make the oil needle 4 and the clamping member 3 tightly connected to prevent brake fluid from overflowing, but also replace the conventional use of gaskets as a leak-proof structure, which causes oil leakage due to insufficient sealing. This makes the present invention more advanced in terms of durability.

[0022] In conclusion, the structural creation disclosed in this invention has an unprecedented innovative structure, so its "novelty" is beyond doubt. Furthermore, this invention can improve efficiency compared to conventional structures, thus it also has "progressiveness." It fully complies with the provisions of the Patent Law of our country concerning utility model patent applications. Therefore, we hereby file a patent application with your office in accordance with the law, and earnestly request your office to grant the patent right in this case as soon as possible. We would be most grateful for your assistance.

[0023] The above description is only used to explain the preferred embodiments of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications or changes made to the present invention under the same creative spirit, which are other forms that can be implemented and have the same effect, should still be included within the scope of protection of the present invention.

[0024] 1: Oil pipe connector 10: Installation Department 100: Oil hole 11: Takeover Department 110: External thread section 111: Oil passage 112: Group Interface 12: Short neck segment 2: Oil pipe valve 20: Second Interior Space 21: Internal thread section 3: Pressing parts 30: First Interior Space 31: Fitting part 310: First inclined plane 4: Oil needle 40: Ring protrusion 400: Socket 401:Second slope 41: First valve stem 42: Second valve stem 5: Caliper body 6: Oil pipe

Claims

1. An oil needle assembly, installed between an oil pipe joint and an oil pipe valve, comprising: The clamping member has a first internal space and a fitting portion is provided around one end face; The oil needle has an integrally connected annular protrusion and a first valve stem and a second valve stem disposed at both ends of the annular protrusion. The first valve stem and the second valve stem are internally connected to each other. The annular protrusion has a recessed groove on the side corresponding to the fitting part. The fitting groove of the oil needle and the fitting part of the clamping member are interlocked, so that the oil needle and the clamping member form a tight connection to achieve a leak-proof effect. The first valve stem is assembled inside the oil pipe joint, and the second valve stem passes through the first internal space of the clamping member and communicates with the inside of the oil pipe valve.

2. The oil needle assembly as claimed in claim 1, wherein the two ends of the insert portion have a first inclined surface, and the two sides of the groove wall of the insert groove have a second inclined surface, and the outer diameter of the insert portion is larger than the inner diameter of the insert groove. When the insert portion is inserted into the insert groove, the first inclined surface will be deformed by the pressure of the second inclined surface, and the deformation of the first inclined surface will enable the clamping member to be tightly connected with the oil needle.

3. The oil needle assembly as claimed in claim 1, wherein the oil pipe connector has a mounting portion, a connecting portion, and a short neck section connecting the mounting portion and the connecting portion, the mounting portion has an oil hole on its inner circumferential surface, the connecting portion has an oil passage and an assembly interface that communicate with each other, the oil passage and the assembly interface extend through the short neck section and communicate with the oil hole, and the assembly interface is connected to the first valve stem.

4. The needle assembly as claimed in claim 3, wherein the oil pipe valve has a second internal space communicating with the second valve stem of the needle, and the inner circumferential surface of the second internal space is provided with an internal thread section that is threaded to the external thread section of the connecting pipe.

5. The needle assembly as claimed in claim 1, wherein the tubing connector is mounted on the caliper body.

6. The needle assembly as claimed in claim 1, wherein the second valve stem is connected to the oil tubing.

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