Spinning buckle type oil pipe quick connection structure and oil pressure disc brake system

Abstract

The invention relates to a rotary buckle type oil pipe quick connection structure and an oil pressure disc brake system. The rotary buckle type oil pipe quick connection structure comprises a first oil pipe with the interior communicated, a connecting piece and an adapting piece, oil ways penetrate through the interior of the connecting piece and the interior of the adapting piece, and the connecting piece and the adapting piece are clamped and limited so as to penetrate through the oil ways; the connecting piece at least comprises a first inserting part and a clamping point part arranged on the side wall of the first inserting part; the adapter at least comprises a main body part, the interior of the main body part is through, and a first containing cavity, a second containing cavity and a third containing cavity which are sequentially arranged and are communicated with one another are formed in the axial middle of the main body part; the bayonet part is arranged on the side wall surface of the first accommodating cavity and is communicated to the second accommodating cavity, so that the clamping point part penetrates through the bayonet part and is rotationally positioned in the second accommodating cavity; and the locking piece is fixedly assembled on the outer wall of the main body part, and a buckling head part which extends into the second accommodating cavity to limit the rotation angle of the clamping point part is arranged on the locking piece. The oil pipe and the pump body can be conveniently and rapidly 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 invention relates to the technical field of hydraulic disc brakes, and in particular to a screw-on oil pipe quick-connect structure and a hydraulic disc brake system. Background Art

[0002] The hydraulic bicycle brake system mainly consists of the oil brake upper pump on the bicycle, the brake lower pump installed next to the tire, and the hydraulic oil pipe used to connect the two. The brake lower pump will have a brake caliper used in conjunction with the brake disc installed on the front / rear wheel. When installing the brake system on an internal wiring bicycle, the high-pressure oil pipe connected to the oil brake upper pump / brake lower pump needs to pass through the inside of the bicycle frame and connect to the oil brake upper pump / brake lower pump at the other end.

[0003] Since the oil pipe is pre-filled with brake fluid, the oil pipe joints at both ends are sealed. The usual sealing method is face sealing. After the oil pipe is passed through the frame, the installation of the oil pipe joint generally requires a wrench to tighten the oil pipe joint screws to deform the internal parts and form a seal. However, this method requires the wrench to apply a set torque. When the torque is insufficient, there is a risk of oil leakage, which is time-consuming and labor-intensive. At present, there are also some oil pipe joint products on the market that can be quickly installed with the oil brake upper pump / brake lower pump. However, when assembling these products, it is impossible to accurately determine the rotation angle that the actively rotating joint part needs to be positioned in the joint part at the other end, and the convenience is slightly poor. To this end, we propose a screw-on oil pipe quick-connect structure and a hydraulic disc brake system. Summary of the invention

[0004] The embodiments of the present application provide a screw-on oil pipe quick-connect structure and a hydraulic disc brake system to at least solve the problem that in the prior art, the installation of oil pipe joints generally requires a wrench to tighten the oil pipe joint screws to deform the internal parts to form a seal, which poses a risk of oil leakage and is time-consuming and labor-intensive. In addition, during assembly, the existing oil pipe joint products cannot accurately determine the rotation angle that the actively rotating joint part needs to be positioned in the other end joint part, resulting in slightly poor convenience.

[0005] In a first aspect, an embodiment of the present application provides a screw-on oil pipe quick-connect structure, comprising a first oil pipe having an internal through hole, a connecting piece and a transition piece, wherein both the connecting piece and the transition piece have oil passages passing through them, a first end of the connecting piece is fixed to a free end of the first oil pipe, and a second end of the connecting piece is engaged with the transition piece to pass through the oil passage;

[0006] The connecting member at least includes a first plug-in portion and a clamping point portion arranged on a side wall of the first plug-in portion;

[0007] The adapter at least includes:

[0008] The main body is through-connected inside, and a first accommodating cavity, a second accommodating cavity and a third accommodating cavity are arranged in sequence and connected to each other in the axial middle part;

[0009] A bayonet portion, which is provided on the side wall of the first accommodating cavity and communicates with the second accommodating cavity, so as to accommodate the clamping point portion passing through the bayonet portion and being rotated in the second accommodating cavity to be clamped and positioned;

[0010] A locking member, which is fixedly mounted on the outer wall of the main body and is provided with a locking portion extending into the second accommodating cavity to limit the rotation angle of the locking point portion;

[0011] Among them, the inner diameter of the third accommodating cavity is less than the inner diameter of the first accommodating cavity and less than the inner diameter of the second accommodating cavity, and the outer diameter of the edge of the clamping point portion is smaller than the inner diameter of the second accommodating cavity and larger than the inner diameter of the first accommodating cavity.

[0012] Optionally, a first oil needle portion is provided on the first end of the connecting member, and an oil pipe sleeve for externally pressing to fix the first oil needle portion and the first oil pipe is mounted on the free end of the first oil pipe.

[0013] Optionally, the connecting piece further comprises:

[0014] A second plug-in portion, which is disposed at the second end of the first plug-in portion and has an outer diameter smaller than that of the first plug-in portion, a first sealing ring is radially mounted on the outer side wall of the second plug-in portion, and the first sealing ring abuts against and seals against the inner wall of the third accommodating cavity;

[0015] A ring edge portion, which is arranged between the first plug-in portion and the first oil needle portion to limit the assembly position of the first oil pipe;

[0016] An extension portion is integrally formed at an end of the second plug-in portion that is away from the first plug-in portion.

[0017] Optionally, the card point unit includes:

[0018] A main clamping point portion, at least one of which is disposed on an annular side wall of the first plug-in portion on a side close to the second plug-in portion;

[0019] There is at least one auxiliary clamping point, which is arranged on the annular side wall of the first plug-in part close to the second plug-in part and is staggered in the circumferential direction with the first plug-in part. It is the same width as the main clamping point, and its length is greater than the length of the main clamping point and less than the height of the second accommodating cavity.

[0020] Optionally, the bayonet portion includes:

[0021] A main clamping portion, which is opened on the side wall of the first accommodating cavity and connected to the second accommodating cavity, and the number of the main clamping point portions is matched with the number of the main clamping point portions;

[0022] The auxiliary clamping portion is opened on the side wall surface of the first accommodating cavity and connected to the second accommodating cavity, and the number of the auxiliary clamping point portions is matched with the number of the auxiliary clamping point portions.

[0023] Optionally, the screw-on oil pipe quick-connect structure further includes an elastic member for positioning the connecting member and the adapter at the axial assembly position, and the elastic member includes:

[0024] a fourth accommodating cavity, which is opened at an inner cavity position of the main body near the second end thereof and is in communication with the third accommodating cavity, and an inner diameter of the fourth accommodating cavity is smaller than an inner diameter of the third accommodating cavity;

[0025] A positioning block, which is movably assembled in the fourth accommodating cavity, has a first end abutting against the extending portion, has a diameter greater than the inner diameter of the third accommodating cavity, and has a spring sleeve portion formed on the second end;

[0026] A positioning spring is sleeved on the spring sleeve portion to elastically position the positioning block at a step where the fourth accommodating cavity and the third accommodating cavity meet.

[0027] Optionally, the adapter is assembled to the connection end of the oil brake upper pump / brake lower pump through a movable joint mechanism and is connected with the oil path of the oil brake upper pump / brake lower pump, and the movable joint mechanism includes:

[0028] A transfer step, which is integrally formed on the annular side wall of the main body near the second end;

[0029] A slewing sleeve, which is movably mounted on the annular side wall of the main body, and which abuts against the transfer step for axial positioning after being assembled from the first end of the main body, and whose annular outer wall is provided with an external thread matching the internal thread preset in the connecting end;

[0030] Wherein, a hexagonal screw head for matching with a wrench tool is formed at one end of the coupling sleeve close to the connecting piece.

[0031] Optionally, a second sealing ring is radially mounted on the outer side wall of the main body close to the second end thereof, and the second sealing ring abuts against and seals against the inner wall surface of the connecting end.

[0032] Optionally, a second oil needle portion is integrally formed at the second end of the adapter, and the second oil needle portion is inserted and fixed in a second oil pipe that is internally through, so as to connect the oil paths of the first oil pipe and the second oil pipe after the fastener is turned and connected.

[0033] In a second aspect, an embodiment of the present application provides a hydraulic disc brake system, which includes the screw-on oil pipe quick-connect structure of the first aspect.

[0034] Compared with the related art, the screw-on oil pipe quick-connect structure and the hydraulic disc brake system provided in the embodiment of the present application have at least the following technical effects:

[0035] Through the rotational quick connection of the connecting piece and the adapter and the positioning of the card point part by the locking piece, the secondary card point part can be carded into the main card mouth part under the elastic force of the elastic piece, and the main card point part is axially positioned by the step formed at the junction of the first accommodating chamber and the second accommodating chamber to complete the rotary quick connection; at this time, the connecting piece and the adapter have completed the axial and circumferential quick connection positioning, the oil path is unobstructed and does not leak oil, and no tool-assisted installation is required and no rotating connecting piece is required, so that the oil pipe joint can be conveniently positioned and quickly connected without falling off easily, which greatly facilitates the rapid assembly of the oil pipe in the hydraulic disc brake system. On the one hand, it is suitable for supplementing the length of the oil pipe in the hydraulic disc brake system when the length is insufficient. On the other hand, it can also be matched with the overall structure of the oil brake upper pump and / or brake lower pump with an adapter structure, and with the assembly of the live joint on the main body, so that after the adapter is assembled with the connecting end of the oil brake upper pump / brake lower pump, the main body can rotate freely. Combined with the setting of the main clamping point and the auxiliary clamping point on the connecting part, after the connecting part is inserted into the inner cavity of the adapter, the main body can be easily rotated and operated, without rotating the first oil pipe and the connecting part which are difficult to rotate after passing through, thereby increasing the convenience of loading and the simplicity of user operation.

[0036] 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

[0037] In order to more clearly illustrate the specific implementation methods of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 The figure is a three-dimensional schematic diagram of a spin-on oil pipe quick-connect structure according to an exemplary embodiment.

[0039] Figure 2 The figure is a cross-sectional view of a spin-on oil pipe quick-connect structure according to an exemplary embodiment.

[0040] Figure 3 The figure is an exploded view of a spin-on oil pipe quick-connect structure according to an exemplary embodiment.

[0041] Figure 4 The figure is a schematic diagram of the assembly of a twist-on oil pipe quick-connect structure according to an exemplary embodiment.

[0042] Figure 5 is a factory assembly drawing of a pump body according to an exemplary embodiment.

[0043] Figure 6 The figure is a structural diagram of a transition sealing member according to an exemplary embodiment.

[0044] Figure 7 It is a three-dimensional schematic diagram of a spin-on oil pipe quick-connect structure according to another exemplary embodiment.

[0045] Figure 8 The figure is a cross-sectional view of a spin-on oil pipe quick-connect structure according to another exemplary embodiment.

[0046] Fig. 9 The figure is an exploded view of a spin-on oil pipe quick-connect structure according to another exemplary embodiment.

[0047] Description of reference numerals:

[0048] Connector 10: first plug-in portion 101; second plug-in portion 102; extension portion 103; first oil needle portion 104; main clamping point portion 1051; auxiliary clamping point portion 1052; first sealing ring 106; ring edge portion 107;

[0049] Adapter 20: main body 201; first adapter body 2011; external threaded section 2012; second adapter body 2013; second oil needle 2014; third sealing ring 2015; first accommodating chamber 2021; second accommodating chamber 2022; third accommodating chamber 2023; main bayonet portion 2024; secondary bayonet portion 2025; fourth accommodating chamber 2026; locking member 203; buckle portion 2031; adapter step 204, second sealing ring 205, joint sleeve 206, hexagonal screw head 2061, second oil needle 2014;

[0050] First oil pipe 30; oil pipe sleeve 40; elastic member 50; positioning block 501; spring sleeve portion 502; positioning spring 503; second oil pipe 60;

[0051] Adaptation sealing member 70; handle portion 701. DETAILED DESCRIPTION

[0052] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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 creative work are within the scope of protection of the present invention.

[0053] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the related art, when installing the brake system on an internally routed bicycle, the high-pressure oil pipe connected to the oil brake upper pump / brake lower pump needs to pass through the inside of the bicycle frame and connect to the oil brake upper pump / brake lower pump at the other end. Since the oil pipe is pre-filled with brake fluid, the oil pipe joints at both ends are sealed. The usual sealing method is face sealing. After the oil pipe is passed through the frame, the installation of the oil pipe joint generally requires a wrench to tighten the oil pipe joint screws to deform the internal parts to form a seal. However, this method requires the wrench to apply a set torque. If the torque is insufficient, there is a risk of oil leakage, which is time-consuming and labor-intensive.

[0056] Based on the above situation, an embodiment of the present invention provides a screw-on oil pipe quick-connect structure and a hydraulic disc brake system, which are described in detail below in conjunction with specific embodiments and drawings.

[0057] Example 1

[0058] An embodiment of the present invention provides a screw-on oil pipe quick-connect structure. Figure 1 The figure is a three-dimensional schematic diagram of a spin-on oil pipe quick-connect structure according to an exemplary embodiment. Figure 2 The figure is a cross-sectional view of a spin-on oil pipe quick-connect structure according to an exemplary embodiment. Figure 3 FIG. 1 is an exploded view of a rotary-type oil pipe quick-connect structure according to an exemplary embodiment. Figure 1-3As shown, the screw-on oil pipe quick-connect structure includes a first oil pipe 30 with an internal through hole, a connecting piece 10, a transition piece 20, and an elastic piece 50 for positioning the connecting piece 10 and the transition piece 20 at an axial assembly position. The connecting piece 10 and the transition piece 20 are both provided with oil passages therein. The first end of the connecting piece 10 is fixed to the free end of the first oil pipe 30, and the second end thereof is engaged with the transition piece 20 to limit the position so as to pass through the oil passage. The first end of the connecting piece 10 is provided with a first oil needle portion 104, and the free end of the first oil pipe 30 is provided with an oil pipe sleeve 40 for externally pressing to fix the first oil needle portion 104 and the first oil pipe 30.

[0059] In this embodiment, continue to refer to the attached Figure 1-3 , the connector 10 at least includes a first plug-in portion 101, and a clamping point portion arranged on the side wall of the first plug-in portion 101; in this embodiment, the clamping point portion includes: a main clamping point portion 1051, which is two in number and symmetrically distributed, and is arranged on the annular side wall of the first plug-in portion 103 on the side close to the second plug-in portion 102; a secondary clamping point portion 1052, which is at least one in number, which is arranged on the annular side wall of the first plug-in portion 103 on the side close to the second plug-in portion 102 and is staggered with the first plug-in portion 103 in the circumferential direction, and is equal in width to the main clamping point portion 1051, and its length is greater than the length of the main clamping point portion 1051 and less than the height of the second accommodating cavity 2021, and its end close to the second plug-in portion 102 is flush with the first end of the main clamping point portion 1051;

[0060] Furthermore, the connector 10 further includes: a second plug-in portion 102, which is arranged at the second end of the first plug-in portion 101 and has an outer diameter smaller than the outer diameter of the first plug-in portion 101; a first sealing ring 106 is radially mounted on the outer wall of the second plug-in portion 102, and the first sealing ring 106 is in abutment with the inner wall of the third accommodating chamber 2023 for sealing; the first sealing ring 106 forms a sealed insulation between the inner cavity of the third accommodating chamber 2023-the sealing ring 106-the outer wall of the second plug-in portion 102, effectively maintaining the oil path unobstructed and preventing oil leakage;

[0061] The ring edge portion 107 is disposed between the first plug-in portion 101 and the first oil needle portion 104 to limit the assembly position of the first oil pipe 30;

[0062] The extension portion 103 is integrally formed at one end of the second plug-in portion 102 away from the first plug-in portion 101 .

[0063] The adapter 20 at least comprises: a main body 201, the interior of which is through-connected, and the axial middle part thereof is provided with a first accommodation cavity 2021, a second accommodation cavity 2022 and a third accommodation cavity 2023 which are sequentially arranged and through-connected from the first end to the second end;

[0064] The bayonet portion is provided on the side wall of the first accommodating cavity 201 and communicated with the second accommodating cavity 2022 to accommodate the clamping point portion passing through the bayonet portion and being clamped and positioned after rotating in the second accommodating cavity 2022; in this embodiment, the bayonet portion includes: a main bayonet portion 2024, which is provided on the side wall of the first accommodating cavity 2021 and communicated with the second accommodating cavity 2022, and the number of which matches the number of the main clamping point portions 1051; a secondary bayonet portion 2025, which is provided on the side wall of the first accommodating cavity 2021 and communicated with the second accommodating cavity 2022, and the number of which matches the number of the secondary clamping point portions 1052;

[0065] The locking member 203 is fixedly mounted on the outer wall of the main body 201 and is provided with a portion extending into the second accommodating cavity 2022 to limit the rotation angle of the locking point;

[0066] Among them, the inner diameter R3 of the third accommodating chamber 2023 is less than the inner diameter R1 of the first accommodating chamber 2021 and less than the inner diameter R2 of the second accommodating chamber 2022. The edge outer diameter of the card point portion is smaller than the inner diameter R2 of the second accommodating chamber 2022 and larger than the inner diameter R1 of the first accommodating chamber 2021. It can be understood that the diameter of the first plug-in portion 101 corresponds to the inner diameter R1 of the first accommodating chamber 2021, and the diameter of the second plug-in portion 102 corresponds to the inner diameter R3 of the third accommodating chamber 2023. Therefore, after plugging in, the edge of the first plug-in portion 101 abuts against the step between the second accommodating chamber 2022 and the third accommodating chamber 2023 to play a role in axial positioning.

[0067] Continue to refer to the attached Figure 1-3 In this embodiment, the outer diameters of the connector 10 and the adapter 20 are smaller than those of the conventional fixed oil needle, and are more regular, making it easier to thread and assemble the oil pipe into the bicycle frame.

[0068] Continue to refer to the attached Figure 1-3 In this embodiment, the elastic member 50 includes: a fourth accommodating cavity 2026, which is opened at the inner cavity position of the main body 201 near the second end thereof and is connected with the third accommodating cavity 2023, and the inner diameter R4 of the fourth accommodating cavity 2026 is less than the inner diameter R3 of the third accommodating cavity 2023;

[0069] The positioning block 501 is movably assembled in the fourth accommodating cavity 2026, with a first end thereof abutting against the extension portion 103 and having a diameter greater than the inner diameter R3 of the third accommodating cavity 2023, and a spring sleeve portion 502 formed on the second end thereof;

[0070] The positioning spring 503 is sleeved on the spring sleeve portion 502 to elastically position the positioning block 501 at the step where the fourth accommodating cavity 2026 and the third accommodating cavity 2023 meet.

[0071] Figure 4The figure is a schematic diagram of the assembly of a twist-on oil pipe quick-connect structure according to an exemplary embodiment. Figure 5 is a factory assembly drawing of a pump body according to an exemplary embodiment. Figure 6 FIG. 1 is a structural diagram of a transfer plugging member according to an exemplary embodiment. Figure 1-6 In this embodiment, the adapter 20 is assembled to the connection end of the oil brake upper pump / brake lower pump through a movable joint mechanism and is connected to the oil circuit of the oil brake upper pump / brake lower pump. The movable joint mechanism includes:

[0072] A transfer step 204, which is integrally formed on the annular side wall of the main body 201 near the second end;

[0073] The slewing sleeve 206 is movably mounted on the annular side wall of the main body 201, and after being assembled from the first end of the main body 201, it abuts against the transfer step 204 for axial positioning, and its annular outer wall is provided with an external thread matching the internal thread preset in the connecting end;

[0074] Among them, a hexagonal screw head 2061 for matching with a wrench tool is formed at one end of the union sleeve 206 close to the connecting piece 10; a second sealing ring 205 is radially mounted on the outer wall of the main body 201 close to its second end, and the second sealing ring 205 abuts against the inner wall surface of the connecting end for sealing.

[0075] In the technical solution of the above embodiment, refer to the attached Figure 1-6 , step 1, the first end of the adapter 20 is sleeved with the union sleeve 206, and then the positioning spring 503 is sleeved with the spring sleeve connection portion 502 of the positioning block 501, and then the second end of the adapter 20 is installed into the fourth accommodating chamber 2026, and then the second end of the adapter 20 is inserted into the connecting end of the oil brake upper pump / brake lower pump, the second sealing ring 205 is abutted and sealed, and the union sleeve 206 is threadedly tightly matched with the connecting end of the oil brake upper pump / brake lower pump, and the assembly of the adapter 20 is completed. At this time, the main body 201 can rotate freely in the connecting end;

[0076] Step 2: The first oil needle portion 104 of the connector 10 is inserted into the free end of the first oil pipe 30 and is fixed by pressing the oil pipe sleeve 40 from the outside. It can be understood that the fixing principle of the oil pipe sleeve 40 is that after the first oil needle portion 104 is pressed into the free end of the first oil pipe 30, the outside of the oil pipe sleeve 40 is pressed by a pressing machine to achieve compression deformation, thereby fixing the first oil needle portion 104 and the first oil pipe 30;

[0077] Step 3, align the connector 10 with the adapter 20, align the main clamping point 1051 with the main clamping hole 2024, and align the auxiliary clamping point 1052 with the auxiliary clamping hole 2025, and then plug them together;

[0078] Step 4: When both the main clamping point 1051 and the auxiliary clamping point 1052 enter the second accommodating cavity 2022, the main body 201 is rotated clockwise / pseudo-clockwise, wherein the assembly position of the buckle head 2031 is set according to the pre-calculated position, until one of the clamping points is rotated to the buckle head 2031 of the lock member 203 to complete the rotation position positioning, at which time the auxiliary clamping point 1052 just corresponds to one of the main clamping points 2024, and the pressure is released, and the auxiliary clamping point 1052 is locked. Under the elastic force of the elastic member 50 composed of the positioning spring 503 and the positioning block 501, 1052 is axially retreated to one of the main clamping parts 2024 for clamping, and the main clamping point part 1051 is axially positioned by the step formed at the junction of the first accommodating chamber 2021 and the second accommodating chamber 2022. At this time, the axial and circumferential directions of the connecting member 10 and the adapter 20 have completed the axial and circumferential quick-connect positioning of the screw-in, and no tools are required to assist in fixing and the adapter will not fall off, which facilitates the installation of the oil pipe in the hydraulic disc brake system.

[0079] Among them, it is understandable that, with reference to Figure 5 is a factory assembly drawing of a pump body according to an exemplary embodiment. Figure 6 The figure is a structural diagram of a transition plugging member according to an exemplary embodiment. The transition plugging member 70 has the same plug-in positioning structure as the second end of the connector 10, namely, a first plug-in portion 101, a second plug-in portion 102, an extension portion 103, a main clamping point portion 1051, a secondary clamping point portion 1052, a first sealing ring 106, and a handle portion 701 provided at the second end of the first plug-in portion 101;

[0080] When assembled and shipped from the factory, after the pump body is filled with oil, the first end of the adapter sealing component 70 is aligned with the adapter 20, plugged in and then rotated, and then the main body 201 or the handle 701 is rotated clockwise / pseudo-clockwise, and the secondary clamping point portion of the adapter sealing component 70 is axially retreated to one of the main clamping portions 2024 under the elastic force of the elastic member 50 and clamped, and the main clamping point portion of the adapter sealing component 70 is axially positioned by the step formed at the junction of the first accommodating cavity 2021 and the second accommodating cavity 2022. At this time, the adapter sealing component 70 and the adapter 20 are axially and circumferentially positioned by the quick-connect screw. No tools are required to assist in fixing and they will not fall off, completing the assembly and shipment of the pump body after oil filling.

[0081] In summary, the screw-on oil pipe quick-connect structure provided in the embodiment of the present invention can make the secondary clamping point portion 1052 clamped into the main clamping point portion 2024 under the elastic force of the elastic member 50 through the rotational quick connection of the connecting member 10 and the adapter 20 and the positioning of the clamping point portion by the locking member 203, and the main clamping point portion 1051 is axially positioned by the step formed at the junction of the first accommodating chamber 202 and the second accommodating chamber 203, thereby completing the screw-on quick connection; at this time, the connecting member 10 and the adapter 20 have completed the quick connection positioning in the axial and circumferential directions, the oil path is unobstructed and does not leak oil, and no tool-assisted installation is required and no rotating connecting member 10 is required, so that the oil pipe joint can be conveniently positioned and quickly connected without falling off easily, which greatly facilitates the rapid assembly of the oil pipe in the hydraulic disc brake system. On the one hand, it is suitable for supplementing the length of the oil pipe in the hydraulic disc brake system when the length is insufficient. On the other hand, it can also be matched with the overall structure of the oil brake upper pump and / or brake lower pump having the adapter 20 structure, and with the assembly of the coupling sleeve 206 on the main body 201, it is achieved that after the adapter 20 is assembled with the connecting end of the oil brake upper pump / brake lower pump, the main body 201 can rotate freely. Combined with the setting of the main clamping point 1051 and the auxiliary clamping point 1052 on the connecting piece 10, after the connecting piece 10 is inserted into the inner cavity of the adapter 20, the main body 201 can be easily rotated and operated without rotating the first oil pipe 30 and the connecting piece 10 which are difficult to rotate after being inserted inside, thereby increasing the convenience of loading and the simplicity of user operation.

[0082] Example 2

[0083] The difference between this embodiment and embodiment 1 is that embodiment 2 of the present invention provides a screw-on oil pipe quick-connect structure. Figure 7 It is a three-dimensional schematic diagram of a spin-on oil pipe quick-connect structure according to another exemplary embodiment. Figure 8 The figure is a cross-sectional view of a spin-on oil pipe quick-connect structure according to another exemplary embodiment.

[0084] Fig. 9 The exploded view of the screw-on oil pipe quick-connect structure according to another exemplary embodiment is shown. The second end of the adapter 20 is integrally formed with a second oil needle portion 2014, and the second oil needle portion 2014 is plugged and fixed inside a second oil pipe 60 that is internally through, so as to connect the oil path of the first oil pipe 30 and the second oil pipe 60 after the screw-on quick connection.

[0085] Continue to refer to the attached Figure 6-9 The adapter 20 is limited by the volume of the structural parts passing through the oil pipe. Therefore, in order to reduce the volume of the adapter 20, the adapter 20 is divided into a two-stage structure. Furthermore, the protruding locking member 203 can be removed. The adapter 20 has the same first accommodating chamber 2021, the second accommodating chamber 2022, the third accommodating chamber 2023 and the fourth accommodating chamber 2024 as the above-mentioned embodiment 1, and also includes:

[0086] A first adapter body 2011, which corresponds to one side of the first end of the main body 201, and has an external threaded connection section 2012 at its second end;

[0087] The second adapter body 2013 corresponds to one side of the second end of the main body 201, and the outer threaded section 2012 is threadedly assembled with the first end of the second adapter body 2013 to form the overall structure of the main body 201; wherein a third sealing ring 2015 is provided between the first adapter body 2011 and the second adapter body 2013 for sealing the two-stage structure;

[0088] The second oil needle 2014 is formed at the second end of the second adapter 2013. The second oil needle 2014 is inserted and fixed inside a second oil pipe 60 that is internally through. The free end of the second oil pipe 60 is also equipped with an oil pipe sleeve 40 for externally pressing and fixing the second oil needle 2014 and the second oil pipe 60.

[0089] In summary, the screw-on oil pipe quick-connect structure provided in the embodiment of the present invention can be used to connect two oil pipes to extend the length of the oil pipe in the hydraulic disc brake system, and then make up for the oil pipe when the length is insufficient. On the one hand, it is suitable for emergencies during vehicle installation, and on the other hand, it is also suitable for making up the length when the oil pipe is insufficient during user modification.

[0090] For other structures not described, refer to Example 1.

[0091] Example 3

[0092] Embodiment 3 of the present application provides a hydraulic disc brake system, which includes the screw-on oil pipe quick-connect structure of embodiment 1 or embodiment 2 above.

[0093] In summary, the screw-on oil pipe quick-connect structure and the hydraulic disc brake system provided by the embodiments of the present invention can make the secondary clamping point portion 1052 clamped into the main clamping point portion 2024 under the elastic force of the elastic member 50 through the rotational quick connection of the connecting member 10 and the adapter 20 and the positioning of the clamping point portion by the locking member 203, and the main clamping point portion 1051 is axially positioned by the step formed at the junction of the first accommodating chamber 202 and the second accommodating chamber 203, thereby completing the screw-on quick connection; at this time, the connecting member 10 and the adapter 20 have completed the quick connection positioning in the axial and circumferential directions, the oil path is unobstructed and does not leak oil, and no tool-assisted installation is required and no rotating connecting member 10 is required, so that the oil pipe joint can be conveniently positioned and quickly connected without falling off easily, which greatly facilitates the rapid assembly of the oil pipe in the hydraulic disc brake system. On the one hand, it is suitable for supplementing the length of the oil pipe in the hydraulic disc brake system when the length is insufficient. On the other hand, it can also be matched with the overall structure of the oil brake upper pump and / or brake lower pump having the adapter 20 structure, and with the assembly of the coupling sleeve 206 on the main body 201, it is achieved that after the adapter 20 is assembled with the connecting end of the oil brake upper pump / brake lower pump, the main body 201 can rotate freely. Combined with the setting of the main clamping point 1051 and the auxiliary clamping point 1052 on the connecting piece 10, after the connecting piece 10 is inserted into the inner cavity of the adapter 20, the main body 201 can be easily rotated and operated without rotating the first oil pipe 30 and the connecting piece 10 which are difficult to rotate after being inserted inside, thereby increasing the convenience of loading and the simplicity of user operation.

[0094] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0095] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A screw-on oil pipe quick-connect structure, characterized in that: It comprises a first oil pipe with a through interior, a connecting piece, and a transition piece, wherein both the connecting piece and the transition piece have oil passages passing through them, a first end of the connecting piece is fixed to a free end of the first oil pipe, and a second end of the connecting piece is engaged with the transition piece to pass through the oil passage; The connecting member at least includes a first plug-in portion and a clamping point portion arranged on a side wall of the first plug-in portion; The adapter at least includes: The main body is through-connected inside, and a first accommodating cavity, a second accommodating cavity and a third accommodating cavity are arranged in sequence and connected to each other in the axial middle part; A bayonet portion, which is opened on the side wall surface of the first accommodating cavity and communicates with the second accommodating cavity, so as to accommodate the clamping point portion passing through the bayonet portion and rotating and positioning in the second accommodating cavity; A locking member, which is fixedly mounted on the outer wall of the main body and is provided with a portion extending into the second accommodating cavity to limit the rotation angle of the locking point portion; Among them, the inner diameter of the third accommodating cavity is less than the inner diameter of the first accommodating cavity and less than the inner diameter of the second accommodating cavity, and the outer diameter of the edge of the clamping point portion is smaller than the inner diameter of the second accommodating cavity and larger than the inner diameter of the first accommodating cavity.

2. The screw-on oil pipe quick-connect structure according to claim 1, characterized in that: A first oil needle portion is disposed on the first end of the connecting member, and an oil pipe sleeve for externally pressing to fix the first oil needle portion and the first oil pipe is mounted on the free end of the first oil pipe.

3. The screw-on oil pipe quick-connect structure according to claim 2, characterized in that: The connecting piece also includes: A second plug-in portion, which is disposed at the second end of the first plug-in portion and has an outer diameter smaller than that of the first plug-in portion, a first sealing ring is radially mounted on the outer side wall of the second plug-in portion, and the first sealing ring abuts against and seals against the inner wall of the third accommodating cavity; A ring edge portion, which is arranged between the first plug-in portion and the first oil needle portion to limit the assembly position of the first oil pipe; An extension portion is integrally formed at an end of the second plug-in portion that is away from the first plug-in portion.

4. The screw-on oil pipe quick-connect structure according to claim 1, characterized in that: The card point unit comprises: A main clamping point portion, at least one of which is disposed on an annular side wall of the first plug-in portion on a side close to the second plug-in portion; There is at least one auxiliary clamping point, which is arranged on the annular side wall of the first plug-in part close to the second plug-in part and is staggered in the circumferential direction with the first plug-in part. It is the same width as the main clamping point, and its length is greater than the length of the main clamping point and less than the height of the second accommodating cavity.

5. The screw-on oil pipe quick-connect structure according to claim 4, characterized in that: The bayonet portion includes: A main clamping portion, which is opened on the side wall of the first accommodating cavity and connected to the second accommodating cavity, and the number of the main clamping point portions is matched with the number of the main clamping point portions; The auxiliary clamping portion is opened on the side wall surface of the first accommodating cavity and connected to the second accommodating cavity, and the number of the auxiliary clamping point portions is matched with the number of the auxiliary clamping point portions.

6. The screw-on oil pipe quick-connect structure according to claim 1, characterized in that: The screw-on oil pipe quick-connect structure also includes an elastic member for positioning the connecting member and the adapter at the axial assembly position, and the elastic member includes: a fourth accommodating cavity, which is opened at an inner cavity position of the main body near the second end thereof and is in communication with the third accommodating cavity, and an inner diameter of the fourth accommodating cavity is smaller than an inner diameter of the third accommodating cavity; A positioning block, which is movably assembled in the fourth accommodating cavity, has a first end abutting against the extending portion, has a diameter greater than the inner diameter of the third accommodating cavity, and has a spring sleeve portion formed on the second end; A positioning spring is sleeved on the spring sleeve portion to elastically position the positioning block at a step where the fourth accommodating cavity and the third accommodating cavity meet.

7. The screw-on oil pipe quick-connect structure according to claim 1, characterized in that: The adapter is assembled to the connection end of the oil brake upper pump / brake lower pump through a movable joint mechanism and is connected with the oil path of the oil brake upper pump / brake lower pump. The movable joint mechanism includes: A transfer step, which is integrally formed on the annular side wall of the main body near the second end; A slewing sleeve, which is movably mounted on the annular side wall of the main body, and which abuts against the transfer step for axial positioning after being assembled from the first end of the main body, and whose annular outer wall is provided with an external thread matching the internal thread preset in the connecting end; Wherein, a hexagonal screw head for matching with a wrench tool is formed at one end of the coupling sleeve close to the connecting piece.

8. The screw-on oil pipe quick-connect structure according to claim 7, characterized in that: A second sealing ring is radially mounted on the outer side wall of the main body close to the second end thereof, and the second sealing ring abuts against and seals against the inner wall surface of the connecting end.

9. The screw-on oil pipe quick-connect structure according to claim 1, characterized in that: A second oil needle is integrally formed on the second end of the adapter, and the second oil needle is inserted and fixed in a second oil pipe that is internally through, so as to connect the oil passages of the first oil pipe and the second oil pipe after the fastener is turned.

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

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