Buckle type oil pipe quick connection structure, oil pressure disc brake system and bicycle

Abstract

The utility model relates to a buckle type oil pipe quick connection structure, an oil pressure disc brake system and a bicycle. The buckle type oil pipe quick connection structure comprises a first oil pipe, a connecting piece and an adapter, wherein the interior of the first oil pipe is hollow; the first end of the connecting piece is fixed to the free end of the first oil pipe, and the second end of the connecting piece is in buckle quick connection with the adapter to communicate with the oil way of the first oil pipe; the connecting piece at least comprises a main inserting part, a first oil needle part arranged at the first end of the main inserting part, and a buckling part arranged in the middle of the second end of the main inserting part; the adapter at least comprises an internally through main body part and an annular step part formed on the wall surface of an inner cavity of the main body part, the step surface, close to the connecting piece, of the annular step part is a first step surface, and the other side of the annular step part is a second step surface. The oil pipe can penetrate through the oil pipe conveniently and can be assembled and fixed, an oil way is smooth and does not leak oil, and rapid assembly of the oil pipe in an oil pressure disc brake system is greatly facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil pressure disc brake system technical field, concretely relates to a buckle type oil pipe quick -joint structure, oil pressure disc brake system and bicycle. BACKGROUND

[0002] The hydraulic bicycle brake system is mainly composed of the oil brake upper pump on the bicycle, the brake lower pump installed beside the tire and the hydraulic oil pipe for connecting the two, wherein the brake lower pump has the brake caliper matched with the brake disc on the front / rear wheel. When the brake system is installed on the inside wiring bicycle, the high-pressure oil pipe connected with the oil brake upper pump / brake lower pump needs to pass through the inside of the bicycle frame and be connected with the oil brake upper pump / brake lower pump at the other end.

[0003] Since the oil pipe is pre-filled with brake oil, the oil pipe joints at both ends are sealed. The general sealing method is face sealing, and the oil pipe joint installation after the oil pipe is completed in the frame generally needs to be locked with a wrench to make the internal parts deform to form a seal. However, this method needs a wrench to apply a set torque, and if the torque is insufficient, there is a risk of oil leakage, which is time-consuming and labor-intensive. Therefore, we propose a buckle type oil pipe quick joint structure, an oil pressure disc brake system and a bicycle. SUMMARY

[0004] The present application provides a buckle type oil pipe quick joint structure, an oil pressure disc brake system and a bicycle to at least solve the problem that the oil pipe joint installation generally needs a wrench to lock the oil pipe joint screw to make the internal parts deform to form a seal, which has a risk of oil leakage and is time-consuming and labor-intensive.

[0005] In the first aspect, the present application provides a buckle type oil pipe quick joint structure, which comprises a first oil pipe with an internal passage, a connecting piece and an adapter; the connecting piece and the adapter both have an oil passage inside, the first end of the connecting piece is fixed on the free end of the first oil pipe, and the second end thereof is buckled and quickly connected with the adapter to communicate the oil passage of the first oil pipe;

[0006] The connecting piece at least comprises a main plug-in part, a first oil needle part arranged at the first end of the main plug-in part, and a buckle part arranged at the middle part of the second end of the main plug-in part;

[0007] The adapter at least comprises a main body part with an internal passage and an annular step part formed on the inner cavity wall surface of the main body part, wherein the step surface of the annular step part close to the connecting piece is a first step surface, and the other side is a second step surface;

[0008] During assembly, the second end of the main plug-in part abuts against the first step surface, and the free end of the buckle part is connected and matched with the second step surface to be axially positioned.

[0009] Optionally, a free end of the first oil pipe is equipped with an oil pipe sleeve for external compression to fix the first oil needle portion and the first oil pipe.

[0010] Optionally, the buckling portion is a hollow tubular structure, and a number of axially extending elastic deformation grooves are provided on its annular side wall. A terrace-shaped portion extending inward from the free end and with an outer diameter gradually increasing is integrally formed on the outer side wall of the free end of the buckling portion, and the terrace-shaped portion is snap-fitted with the second step surface.

[0011] Optionally, a first annular groove is formed on the outer side wall of the main plug-in portion, and a first sealing ring is sleeved on the first annular groove.

[0012] Optionally, one end of the main body away from the connecting piece is integrally formed on the oil brake upper pump / brake lower pump and is connected to the oil circuit of the oil brake upper pump / brake lower pump, so as to be connected to the oil brake upper pump / brake lower pump through the first oil pipe after the snap-on quick connection.

[0013] Optionally, a hexagonal bolt portion is formed in the middle of the outer wall of the main body, and an external thread portion is formed on the outer wall of one end away from the connecting piece. The main body is fixed by matching the external thread portion with the internal thread provided on the oil brake upper pump / brake lower pump.

[0014] Optionally, a second annular groove is formed on the outer wall of the main body on a side away from the connecting piece, and a second sealing ring is sleeved on the second annular groove.

[0015] Optionally, a second oil needle portion is formed at one end of the main body away from the connector, and the second oil needle portion is plugged and fixed inside the second oil pipe to connect the oil paths of the first oil pipe and the second oil pipe after rotating the quick connector.

[0016] In a second aspect, the present application provides a hydraulic disc brake system, which includes the snap-on oil pipe quick-connect structure described in the first aspect.

[0017] In a third aspect, the present application provides a bicycle, comprising the snap-on oil pipe quick-connect structure described in the first aspect, or,

[0018] The hydraulic disc brake system described in the second aspect above.

[0019] Compared with related technologies, the snap-on oil pipe quick-connect structure, hydraulic disc brake system, and bicycle provided by this application have at least the following technical effects:

[0020] Insert the buckle part of the connector into the inner cavity of the adapter and gradually push it forward. The stage-shaped part contacts the annular step part and deforms inwardly, then abuts against the inner wall of the annular step part and recovers its deformation after passing through. At this time, the second end of the main plug-in part abuts against the first step surface of the annular step part, and the stage-shaped part is snap-fitted with the second step surface of the annular step part for axial positioning, completing the quick-connect positioning. The oil path is unobstructed and there is no oil leakage. No tools are required for auxiliary installation, and the installation is quick and convenient and will not fall off easily, which greatly facilitates the rapid assembly of the oil pipe in the hydraulic disc brake system.

[0021] The details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 The figure is a schematic diagram of a snap-on oil pipe quick-connect structure according to an exemplary embodiment.

[0024] Figure 2 The figure is an exploded view of a snap-on oil pipe quick-connect structure according to an exemplary embodiment.

[0025] Figure 3 The figure is a cross-sectional view of a snap-on oil pipe quick-connect structure according to an exemplary embodiment.

[0026] Figure 4 The figure is a schematic diagram of a combined structure of a connector and a transition piece according to an exemplary embodiment.

[0027] Explanation of reference numerals: Connector 10 : main plug-in portion 101 , first oil needle portion 102 , buckle portion 103 , platform portion 104 , elastic deformation groove 105 , first sealing ring 106 ;

[0028] Adapter 20: main body 201, annular step 202, hexagonal bolt 203, second sealing ring 204, external thread 205;

[0029] First oil pipe 30; Oil pipe casing 40. DETAILED DESCRIPTION

[0030] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] In related technologies, because the oil pipes are pre-filled with brake fluid, the oil pipe joints at both ends are sealed. The typical sealing method is a face seal. After the oil pipes are inserted into the vehicle frame, the oil pipe joints are typically installed using a wrench and tightening the screws to deform the internal components and create a seal. However, this method requires the wrench to apply a set torque, and insufficient torque can lead to the risk of oil leakage, making it time-consuming and labor-intensive.

[0034] Based on the above situation, the embodiments of the present invention provide a snap-on oil pipe quick-connect structure, a hydraulic disc brake system and a bicycle, which are described in detail below with reference to specific embodiments and drawings.

[0035] Example 1

[0036] The embodiment of the utility model provides a snap-on oil pipe quick-connect structure. Figure 1 The figure is a schematic diagram of a snap-on oil pipe quick-connect structure according to an exemplary embodiment. Figure 2 FIG. 1 is an exploded view of a snap-on oil pipe quick-connect structure according to an exemplary embodiment. Figures 1-2As shown, the snap-on oil pipe quick-connect structure includes a first oil pipe 30 with an internal passage, a connector 10, and an adapter 20. Both the connector 10 and the adapter 20 have oil passages extending therethrough. The first end of the connector 10 is fixed to the free end of the first oil pipe 30, and the second end thereof is snap-connected to the adapter 20 to connect the oil passage of the first oil pipe 30.

[0037] Figure 3 The figure is a cross-sectional view of a snap-on oil pipe quick-connect structure according to an exemplary embodiment. Figure 4 1 is a schematic diagram of a combined structure of a connector and a transition piece according to an exemplary embodiment. Figures 3-4 The connecting member 10 at least includes a main plug-in portion 101, a first oil needle portion 102 arranged at the first end of the main plug-in portion 101, and a buckle portion 103 arranged in the middle of the second end of the main plug-in portion 101; in this embodiment, the buckle portion 103 is a hollow tubular structure, and a plurality of axially extending elastic deformation grooves 105 are provided on its annular side wall, and a stage-shaped portion 104 extending inward from the free end and with an outer diameter gradually increasing is integrally formed on the outer side wall of the free end of the buckle portion 103, and the stage-shaped portion 104 is snap-fitted with the second step surface.

[0038] The adapter 20 comprises at least an internally through-body portion 201 and an annular step portion 202 formed on the inner wall of the body portion 201. The step surface of the annular step portion 202 adjacent to the connector 10 is a first step surface, and the other side is a second step surface. During assembly, the second end of the main plug-in portion 101 abuts against the first step surface, and the free end of the snap-fit ​​portion 103 engages with the second step surface for axial positioning.

[0039] Continue to refer to the attached Figure 2 In this embodiment, the free end of the first oil pipe 30 is equipped with an oil pipe sleeve 40 for externally pressing to fix the first oil needle portion 102 and the first oil pipe 30 .

[0040] Further, see the attached Figures 1-3 In this embodiment, the outer diameters of the connector 10 and the adapter 20 are smaller than those of the traditional fixed oil needle, and are more regular, making it easier to thread and assemble the oil pipe into the bicycle frame.

[0041] In the technical solution of the above embodiment, the first oil needle portion 102 of the connector 10 is inserted into the free end of the first oil pipe 30 and is fixed from the outside by the oil pipe sleeve 40. It can be understood that the fixing principle of the oil pipe sleeve 40 is that after the first oil needle portion 102 is pressed into the free end of the first oil pipe 30, the oil pipe sleeve 40 is pressed externally by a pressing machine to deform the sleeve, thereby fixing the first oil needle portion 102 and the first oil pipe 30.

[0042] Insert the free end of the buckle part 103 into the inner cavity of the main body part 201, and gradually push it forward. The stage-shaped part 104 contacts the annular step part 202 and deforms inward, then abuts against the inner wall of the annular step part 202 to pass through, and recovers its deformation after passing. At this time, the second end of the main plug-in part 101 abuts against the first step surface of the annular step part 202, and the stage-shaped part 104 is snap-fitted with the second step surface of the annular step part 202 for axial positioning, completing the quick-connect positioning. It does not require tool-assisted fixing and will not fall off, which facilitates the installation of the oil pipe in the hydraulic disc brake system.

[0043] In this embodiment, continue to refer to the attached Figure 3 A first annular groove is provided on the outer wall of the main plug-in part 101, and a first sealing ring 106 is sleeved on the first annular groove; after the main plug-in part 101 is inserted into the inner cavity of the main body part 201, the first sealing ring 106 abuts against and seals the gap between the main plug-in part 101 and the inner cavity of the main body part 201 to prevent oil leakage.

[0044] Based on the above-mentioned embodiment 1, in an optional embodiment, the end of the main body 201 away from the connecting piece 10 is integrally formed on the oil brake upper pump / brake lower pump and is connected to the oil circuit of the oil brake upper pump / brake lower pump, so as to be connected to the oil brake upper pump / brake lower pump through the first oil pipe 30 after the snap-on quick connection.

[0045] Based on the above-mentioned embodiment 1, in another optional embodiment, a hexagonal bolt portion 203 is formed in the middle of the outer wall of the main body 201, and an external thread portion 205 is formed on the outer wall of the end away from the connecting piece 10. The main body 201 is fixed by matching the external thread portion 205 with the internal thread provided on the oil brake upper pump / brake lower pump. The hexagonal bolt portion 203 of the adapter 20 is rotated by a wrench and screwed into the oil brake upper pump / brake lower pump to complete the installation.

[0046] Further, refer to the attached Figures 1-4 A second annular groove is provided on the outer wall of the main body 201 away from the connecting member 10, and a second sealing ring 204 is sleeved on the second annular groove to seal the gap after the adapter 20 is connected and fixed with the oil brake upper pump / brake lower pump.

[0047] Based on the above embodiment 1, in a third optional embodiment, a second oil needle portion is formed at one end of the main body 201 away from the connector 10, and the second oil needle portion is plugged and fixed inside the second oil pipe to connect the oil paths of the first oil pipe and the second oil pipe after rotating the quick connector.

[0048] In summary, the snap-on oil pipe quick-connect structure provided by the embodiment of the present invention inserts the snap-on portion 103 of the connector 10 into the inner cavity of the adapter 20, and gradually advances. The step-shaped portion 104 contacts the annular step portion 202 and deforms inward, then abuts against the inner wall of the annular step portion 202 to pass through, and recovers its deformation after passing through. At this time, the second end of the main plug-in portion 101 abuts against the first step surface of the annular step portion 202, and the step-shaped portion 104 snaps into engagement with the second step surface of the annular step portion 202 for axial positioning, completing the quick-connect positioning. The oil path is unobstructed and leak-free. No tools are required for auxiliary installation, and the installation is quick and convenient and will not fall off easily, which greatly facilitates the rapid assembly of the oil pipe in the hydraulic disc brake system.

[0049] Example 2

[0050] Example 2 of the present application provides a hydraulic disc brake system, which includes the snap-on oil pipe quick-connect structure of Example 1.

[0051] For other structures not described, refer to Example 1.

[0052] Example 3

[0053] Example 3 of the present application provides a bicycle, which includes the snap-on oil pipe quick-connect structure of Example 1, or the hydraulic disc brake system of Example 2.

[0054] For other structures not described, refer to Example 1.

[0055] In summary, the snap-on oil pipe quick-connect structure, hydraulic disc brake system and bicycle provided by the embodiments of the present invention insert the snap-on portion 103 of the connector 10 into the inner cavity of the adapter 20, and gradually advance. The step-shaped portion 104 contacts the annular step portion 202 and deforms inward, then abuts against the inner wall of the annular step portion 202 to pass through, and recovers its deformation after passing. At this time, the second end of the main plug-in portion 101 abuts against the first step surface of the annular step portion 202, and the step-shaped portion 104 snaps into engagement with the second step surface of the annular step portion 202 for axial positioning, completing the quick-connect positioning. The oil path is unobstructed and does not leak oil. No tools are required for auxiliary installation, and the installation is quick and convenient and will not fall off easily, which greatly facilitates the rapid assembly of the oil pipe in the hydraulic disc brake system.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above embodiments only express several implementation manners of the application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which all belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. A snap-on oil pipe quick-connect structure, characterized in that: The connector comprises a first oil pipe with a central passage, a connector, and an adapter; both the connector and the adapter have oil passages extending therethrough; a first end of the connector is fixed to the free end of the first oil pipe, and a second end of the connector is fastened to the adapter to connect the oil passage of the first oil pipe; The connecting member at least includes a main plug-in portion, a first oil needle portion provided at a first end of the main plug-in portion, and a buckle portion provided at a middle portion of a second end of the main plug-in portion; The adapter comprises at least a main body portion with an internal penetration and an annular step portion formed on the inner wall surface of the main body portion, wherein the step surface of the annular step portion close to the connecting member is a first step surface, and the other side is a second step surface; During assembly, the second end of the main plug-in portion abuts against the first step surface, and the free end of the buckle portion snaps into engagement with the second step surface for positioning and assembly.

2. The snap-on oil pipe quick-connect structure according to claim 1, characterized in that: The free end of the first oil pipe is equipped with an oil pipe sleeve for external compression to fix the first oil needle portion and the first oil pipe.

3. The snap-on oil pipe quick-connect structure according to claim 1, characterized in that: The buckle part is a hollow tubular structure, and a number of axially extending elastic deformation grooves are provided on its annular side wall. A stage-shaped part extending inward from the free end and with an outer diameter gradually increasing is integrally formed on the outer wall of the free end of the buckle part. The stage-shaped part is snap-fitted with the second step surface.

4. The snap-on oil pipe quick-connect structure according to claim 1, wherein: A first annular groove is formed on the outer side wall of the main plug-in portion, and a first sealing ring is sleeved on the first annular groove.

5. The snap-on oil pipe quick-connect structure according to claim 1, characterized in that: One end of the main body away from the connecting piece is integrally formed on the oil brake upper pump / brake lower pump and is connected to the oil circuit of the oil brake upper pump / brake lower pump, so as to be connected to the oil brake upper pump / brake lower pump through the first oil pipe after the snap fastening.

6. The snap-on oil pipe quick-connect structure according to claim 1, characterized in that: A hexagonal bolt portion is formed in the middle of the outer wall of the main body, and an external thread portion is formed on the outer wall of the end away from the connecting piece. The main body is fixed by matching the external thread portion with the internal thread provided on the oil brake upper pump / brake lower pump.

7. The snap-on oil pipe quick-connect structure according to claim 6, characterized in that: A second annular groove is formed on the outer wall of the main body at a side away from the connecting piece, and a second sealing ring is sleeved on the second annular groove.

8. The snap-on oil pipe quick-connect structure according to claim 1, wherein: A second oil needle is formed on one end of the main body away from the connector, and the second oil needle is plugged and fixed inside the second oil pipe to connect the oil paths of the first oil pipe and the second oil pipe after the snap-on quick connection.

9. A hydraulic disc brake system, characterized in that: The hydraulic disc brake system includes the snap-on oil pipe quick-connect structure according to any one of claims 1 to 8.

10. A bicycle, characterized in that: The bicycle comprises the snap-on oil pipe quick-connect structure according to any one of claims 1 to 8, or The hydraulic disc brake system according to claim 9.

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