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

Abstract

The utility model 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 utility model relates to oil pressure disc brake technical field, concretely relates to a screw buckle type oil pipe quick -joint structure and oil pressure disc brake system. 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 worn in the frame generally needs to be locked with a wrench to deform the internal parts to form a seal. However, this method requires 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. At present, some oil pipe joint products with rotating quick installation of the oil brake upper pump / brake lower pump have appeared on the market, but these products cannot accurately determine the rotation angle of the joint part that needs to be positioned in the other end joint part during assembly, and the convenience is slightly poor. Therefore, we propose a screw buckle type oil pipe quick joint structure and oil pressure disc brake system. UTILITY MODEL CONTENTS

[0004] The embodiment of the application provides a screw buckle type oil pipe quick joint structure and oil pressure disc brake system to at least solve the problems that the oil pipe joint installation generally needs to be locked with a wrench to deform the internal parts to form a seal, there is a risk of oil leakage, it is time-consuming and labor-intensive, and the existing oil pipe joint products cannot accurately determine the rotation angle of the joint part that needs to be positioned in the other end joint part during assembly, and the convenience is slightly poor.

[0005] In the first aspect, the embodiment of the application provides a screw buckle type oil pipe quick joint structure, which comprises a first oil pipe with an internal middle passage, a connecting piece and an adapter, the connecting piece and the adapter are internally penetrated by an oil passage, the first end of the connecting piece is fixed on the free end of the first oil pipe, and the second end thereof is clamped and limited with the adapter to penetrate the oil passage;

[0006] The connecting piece at least comprises a first plug-in part and a clamping point part arranged on the side wall of the first plug-in part;

[0007] The adapter at least comprises:

[0008] The main body part is internally through, and the axial middle part is provided with a first accommodating cavity, a second accommodating cavity and a third accommodating cavity arranged in sequence and penetrating each other;

[0009] The bayonet part is arranged on the side wall surface of the first accommodating cavity and communicated to the second accommodating cavity, so as to accommodate the card point part to pass through the bayonet part and rotate in the second accommodating cavity to be clamped and positioned;

[0010] The locking part is fixedly arranged on the outer wall of the main body part, and the locking part is provided with a buckle head part extending into the second accommodating cavity to limit the rotation angle of the card point part.

[0011] The inner diameter of the third accommodating cavity is smaller than the inner diameter of the first accommodating cavity, and the inner diameter of the second accommodating cavity is smaller than the inner diameter of the third accommodating cavity.

[0012] Optionally, the first end of the connecting part is provided with a first oil needle part, and the free end of the first oil pipe is provided with an oil pipe sleeve for external compression to fix the first oil needle part and the first oil pipe.

[0013] Optionally, the connecting part further comprises:

[0014] The second plug-in part is arranged on the second end of the first plug-in part and has an outer diameter smaller than that of the first plug-in part, and the outer side wall of the second plug-in part is radially provided with a first sealing ring, which is in abutting sealing with the inner wall of the third accommodating cavity.

[0015] The ring edge part is arranged between the first plug-in part and the first oil needle part to limit the assembly position of the first oil pipe.

[0016] The extension part is integrally formed on one end of the second plug-in part away from the first plug-in part.

[0017] Optionally, the card point part comprises:

[0018] The main card point part is at least one, arranged on the annular side wall of the first plug-in part close to the second plug-in part.

[0019] The auxiliary card point part is at least one, arranged on the annular side wall of the first plug-in part close to the second plug-in part and distributed in the circumferential direction of the first plug-in part, which is equal in width to the main card point part, and the length is greater than the length of the main card point part and smaller than the height of the second accommodating cavity.

[0020] Optionally, the bayonet part comprises:

[0021] A main card hole part is arranged on the side wall of the first accommodating cavity and communicates with the second accommodating cavity, and the number of the main card hole parts matches the number of the main card point parts;

[0022] A sub card hole part is arranged on the side wall of the first accommodating cavity and communicates with the second accommodating cavity, and the number of the sub card hole parts matches the number of the sub card point parts.

[0023] Optionally, the screw type oil pipe quick connection structure further comprises a positioning connector and an elastic member axially assembled at the adapter part, and the elastic member comprises:

[0024] A fourth accommodating cavity is arranged in the inner cavity of the main body part near the second end and penetrates the third accommodating cavity, and the inner diameter of the fourth accommodating cavity is smaller than the inner diameter of the third accommodating cavity;

[0025] A positioning block is movably assembled in the fourth accommodating cavity, the first end of the positioning block abuts against the extension part, and the diameter of the positioning block is greater than the inner diameter of the third accommodating cavity, and the second end of the positioning block is formed with a spring sleeve part;

[0026] A positioning spring is sleeved on the spring sleeve part to elastically position the positioning block at the step between the fourth accommodating cavity and the third accommodating cavity.

[0027] Optionally, the adapter part is assembled at the connection end of the oil brake upper pump / brake lower pump through a hinged mechanism and penetrates the oil path of the oil brake upper pump / brake lower pump, and the hinged mechanism comprises:

[0028] An adapter step is integrally formed on the annular side wall of the main body part near the second end;

[0029] A hinged sleeve is movably sleeved on the annular side wall of the main body part, and the hinged sleeve is abutted and axially limited by the adapter step after being assembled from the first end of the main body part, and the annular outer wall of the hinged sleeve is provided with external threads matched with the internal threads prearranged in the connection end;

[0030] The end of the hinged sleeve near the connection part is formed with a hexagonal screw head part for cooperating with a wrench tool.

[0031] Optionally, a second sealing ring is radially assembled on the outer side wall of the main body part near the second end, and the second sealing ring is abutted and sealed with the inner wall of the connection end.

[0032] Optionally, a second oil needle part is integrally formed on the second end of the adapter part, and the second oil needle part is inserted and fixed in a second oil pipe with an internal passage, so as to communicate the oil paths of the first oil pipe and the second oil pipe after screwing and quick connection.

[0033] In a second aspect, the embodiments of the present application provide an oil pressure disc brake system, which comprises the quick connection structure of the oil pipe of the rotating buckle type of the first aspect.

[0034] Compared with the related art, the quick connection structure of the oil pipe of the rotating buckle type and the oil pressure disc brake system provided by the embodiments of the present application have at least the following technical effects:

[0035] Through the quick connection of the rotation of the connecting piece and the adapter piece and the positioning of the clamping point part by the locking piece, the secondary clamping point part is clamped into the primary clamping port part under the elastic force of the elastic piece, the primary clamping point part is axially positioned by the step formed at the junction of the first accommodating cavity and the second accommodating cavity, and the quick connection of the rotating buckle is completed. At this time, the axial and circumferential quick connection positioning of the connecting piece and the adapter piece is completed, the oil passage is smooth and does not leak oil, no tool is needed to assist in installation and the connecting piece does not need to be rotated, so that the quick connection of the oil pipe joint after positioning is realized and the oil pipe joint cannot be easily detached, which greatly facilitates the quick assembly of the oil pipe in the oil pressure disc brake system. On the one hand, it is suitable for length compensation when the length of the oil pipe in the oil pressure disc brake system is insufficient, and on the other hand, it can be matched with the overall structure of the upper pump and / or the lower pump of the brake of the oil brake, and the assembly of the adapter piece on the main body part is matched, so that after the adapter piece is assembled at the connecting end of the upper pump and / or the lower pump of the brake of the oil brake, the main body part can be freely rotated, and the setting of the primary clamping point part and the secondary clamping point part on the connecting piece makes it convenient to rotate the main body part after the connecting piece is inserted into the inner cavity of the adapter piece, without the need to rotate the first oil pipe and the connecting piece which are difficult to rotate after being inserted, thereby increasing the convenience of installation and the simplicity of user operation.

[0036] The details of one or more embodiments of the present application are presented in the following drawings and description to make other features, objects and advantages of the present application more apparent. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0038] Figure 1 is a perspective view of the quick connection structure of the oil pipe of the rotating buckle type according to an exemplary embodiment.

[0039] Figure 2 is a cross-sectional view of the quick connection structure of the oil pipe of the rotating buckle type according to an exemplary embodiment.

[0040] Figure 3 is an exploded view of the quick connection structure of the oil pipe of the rotating buckle type according to an exemplary embodiment.

[0041] Figure 4 is a schematic diagram of the assembly of the spin buckle type oil pipe quick connection structure according to an example embodiment.

[0042] Figure 5 is a factory assembly diagram of the pump body according to an example embodiment.

[0043] Figure 6 is a structure diagram of the adapter plug according to an example embodiment.

[0044] Figure 7 is a three-dimensional schematic diagram of the spin buckle type oil pipe quick connection structure according to another example embodiment.

[0045] Figure 8 is a sectional view of the spin buckle type oil pipe quick connection structure according to another example embodiment.

[0046] Figure 9 is an exploded view of the spin buckle type oil pipe quick connection structure according to another example embodiment.

[0047] Legend of reference signs:

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

[0049] Adapter 20: main body part 201; first adapter body 2011; outer screw segment 2012; second adapter body 2013; second oil needle part 2014; third sealing ring 2015; first accommodating cavity 2021; second accommodating cavity 2022; third accommodating cavity 2023; main clamping opening part 2024; auxiliary clamping opening part 2025; fourth accommodating cavity 2026; locking piece 203; buckle head part 2031; adapter step 204; second sealing ring 205; loose sleeve 206; hexagonal screw head part 2061; second oil needle part 2014;

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

[0051] Adapter plug 70; handle part 701. DETAILED DESCRIPTION

[0052] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0053] In the description of the utility model, it needs to explain that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0054] In the description of the utility model, it needs to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0055] In the related art, when the inner wiring bicycle installs the brake system, the high-pressure oil pipe connected with the upper pump of the oil brake / the lower pump of the brake needs to pass through the inside of the bicycle frame and be connected with the upper pump of the oil brake / the lower pump of the brake at the other end. Since the oil pipe is pre-filled with brake oil, the oil pipe joints at both ends are sealed. The common sealing method is face sealing, and the oil pipe joint installation after the oil pipe is worn in the frame generally needs to be locked with a wrench to deform the internal parts to form a seal. But this way needs a wrench to exert a set torque, and there is a risk of oil leakage when the torque is insufficient, which is time-consuming and laborious.

[0056] Based on the above situation, the utility model embodiment provides a screw buckle type oil pipe quick connection structure and oil pressure disc brake system, which is described in detail below in combination with specific embodiments and drawings.

[0057] Embodiment 1

[0058] The utility model embodiment provides a screw buckle type oil pipe quick connection structure. Figure 1 It is a screw buckle type oil pipe quick connection structure three-dimensional schematic diagram according to an example embodiment. Figure 2 It is a screw buckle type oil pipe quick connection structure sectional view according to an example embodiment. Figure 3 It is a screw buckle type oil pipe quick connection structure explosion diagram according to an example embodiment. Figures 1-3As shown, the spin buckle type oil pipe quick connection structure comprises a first oil pipe 30, a connecting piece 10, an adapter 20, and an elastic piece 50 for positioning the axial assembly position of the connecting piece 10 and the adapter 20. The connecting piece 10 and the adapter 20 are both internally through an oil passage. The first end of the connecting piece 10 is fixed on the free end of the first oil pipe 30, and the second end is clamped and limited with the adapter 20 to pass through the oil passage. The first end of the connecting piece 10 is provided with a first oil needle part 104, and the free end of the first oil pipe 30 is assembled with an oil pipe sleeve 40 for external compression to fix the first oil needle part 104 and the first oil pipe 30.

[0059] In this embodiment, the spin buckle type oil pipe quick connection structure will be described in detail with reference to the accompanying drawings Figures 1-3 The connecting piece 10 at least comprises a first plug-in part 101 and a clamping point part arranged on the sidewall of the first plug-in part 101. In this embodiment, the clamping point part comprises: a main clamping point part 1051, the number of which is two and symmetrically distributed, which is arranged on the annular sidewall of the first plug-in part 103 close to the second plug-in part 102; a sub-clamping point part 1052, the number of which is at least one, which is arranged on the annular sidewall of the first plug-in part 103 close to the second plug-in part 102 and is distributed in a circumferential direction with the first plug-in part 103, which is equal in width to the main clamping point part 1051, and the length thereof is greater than the length of the main clamping point part 1051 and less than the height of the second accommodating cavity 2021, and the end close to the second plug-in part 102 is flush with the first end of the main clamping point part 1051.

[0060] Further, the connecting piece 10 further comprises: a second plug-in part 102 arranged at the second end of the first plug-in part 101 and having an outer diameter smaller than that of the first plug-in part 101, a first sealing ring 106 radially assembled on the outer sidewall of the second plug-in part 102, and the first sealing ring 106 abuts and seals with the inner wall of the third accommodating cavity 2023. The first sealing ring 106 forms a sealed insulation between the inner cavity of the third accommodating cavity 2023-sealing ring 106-outer wall of the second plug-in part 102, effectively maintaining the oil passage unobstructed and avoiding oil leakage.

[0061] A ring edge part 107 is arranged between the first plug-in part 101 and the first oil needle part 104 to limit the assembly position of the first oil pipe 30.

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

[0063] The adapter 20 at least comprises: a main body part 201 internally through, and an axial middle part of which is provided with a first accommodating cavity 2021, a second accommodating cavity 2022 and a third accommodating cavity 2023 arranged in sequence from the first end to the second end and through.

[0064] The card point part is accommodated from the card hole part and is rotated in the second accommodating cavity 2022 to be clamped and positioned; in the embodiment, the card hole part includes: a main card hole part 2024 which is arranged on the side wall of the first accommodating cavity 2021 and is communicated with the second accommodating cavity 2022, and the number of the main card hole part 2024 is matched with the number of the main card point part 1051; and a secondary card hole part 2025 which is arranged on the side wall of the first accommodating cavity 2021 and is communicated with the second accommodating cavity 2022, and the number of the secondary card hole part 2025 is matched with the number of the secondary card point part 1052.

[0065] The lock catch 203 is fixedly arranged on the outer wall of the main body part 201, and an extension part which extends into the second accommodating cavity 2022 is arranged on the lock catch 203 to limit the rotation angle of the card point part.

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

[0067] Continuing to refer to the accompanying drawings, Figures 1-3 In the embodiment, the outer diameters of the connecting part 10 and the adapter part 20 are smaller than those of the conventional fixed oil needle, and are relatively regular and more convenient for threading and assembling of the oil pipe.

[0068] Continuing to refer to the accompanying drawings, Figures 1-3 In the embodiment, the elastic part 50 includes: a fourth accommodating cavity 2026 which is arranged in the inner cavity of the main body part 201 close to the second end and is communicated with the third accommodating cavity 2023, and the inner diameter R4 of the fourth accommodating cavity 2026 is smaller than the inner diameter R3 of the third accommodating cavity 2023.

[0069] The positioning block 501 is movably arranged in the fourth accommodating cavity 2026, the first end of the positioning block 501 abuts against the extension part 103, and the diameter of the positioning block 501 is larger than the inner diameter R3 of the third accommodating cavity 2023, and the second end of the positioning block 501 is formed with a spring sleeve part 502;

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

[0071] Figure 4It is a quick connection structure assembly diagram of a spin buckle type oil pipe according to an exemplary embodiment. Figure 5 It is a pump factory assembly diagram according to an exemplary embodiment. Figure 6 It is a structure diagram of a switching plugging member according to an exemplary embodiment. Refer to the accompanying drawings Figures 1-6 In the embodiment, the switching member 20 is assembled on the connecting end of the upper pump of the oil brake / lower pump of the brake through a loose joint mechanism and penetrates the oil circuit of the upper pump of the oil brake / lower pump of the brake, and the loose joint mechanism comprises:

[0072] A switching step 204 is integrally formed on the annular side wall of the main body part 201 close to the second end;

[0073] A loose joint sleeve 206 is movably sleeved on the annular side wall of the main body part 201, and abuts against the switching step 204 in the axial direction after being assembled from the first end of the main body part 201, and an outer thread is arranged on the annular outer wall of the loose joint sleeve 206, which matches the inner thread prearranged in the connecting end;

[0074] Wherein, a hexagonal screw head part 2061 for cooperating with a wrench tool is formed on one end of the loose joint sleeve 206 close to the connecting member 10; a second sealing ring 205 is radially assembled on the outer side wall of the main body part 201 close to the second end, and the second sealing ring 205 abuts against and seals the inner wall surface of the connecting end.

[0075] In the technical solution of the above embodiment, refer to the accompanying drawings Figures 1-6 Step one, the loose joint sleeve 206 is sleeved on the first end of the switching member 20, then the positioning spring 503 is sleeved on the spring sleeve part 502 of the positioning block 501, then the second end of the switching member 20 is assembled into the fourth accommodating cavity 2026, then the second end of the switching member 20 is inserted into the connecting end of the upper pump of the oil brake / lower pump of the brake, the second sealing ring 205 abuts against and seals, the loose joint sleeve 206 is tightly assembled with the connecting end of the upper pump of the oil brake / lower pump of the brake by screwing, and the assembly of the switching member 20 is completed, at this time, the main body part 201 can freely rotate in the connecting end;

[0076] Step two, the first oil needle part 104 of the connecting member 10 is inserted into the free end of the first oil pipe 30 and is fixed by the oil pipe sleeve 40 from the outside, and it can be understood that the fixing principle of the oil pipe sleeve 40 is that after the first oil needle part 104 is pressed into the free end of the first oil pipe 30, the oil pipe sleeve 40 is pressed from the outside by a pressing machine to realize the deformation of the sleeve, so as to fix the first oil needle part 104 and the first oil pipe 30;

[0077] Step three, the connecting member 10 is aligned with the switching member 20, and the main clamping point part 1051 is aligned with the main clamping part 2024, the auxiliary clamping point part 1052 is aligned with the auxiliary clamping part 2025, and then the connecting member 10 is inserted;

[0078] Step four, when the main card point part 1051 and the secondary card point part 1052 enter the second accommodating cavity 2022, then rotate the main body part 201 clockwise, wherein the assembly position of the buckle head part 2031 is set according to the pre-calculated position, until one of the card point parts rotates to the buckle head part 2031 of the locking part 203 to complete the positioning of the rotation position, at this time, the secondary card point part 1052 is just corresponding to one of the main card port parts 2024, the force is released, the secondary card point part 1052 is axially retreated to the one of the main card port parts 2024 under the elastic force of the elastic element 50 composed of the positioning spring 503 and the positioning block 501, and the main card point part 1051 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 axial and circumferential of the connecting part 10 and the adapter 20 are completed fastening positioning, without the need of tool auxiliary fixing and will not fall off, the oil pipe is convenient for installation in the oil pressure disc brake system.

[0079] It can be understood that, with reference to Figure 5 is a pump body factory assembly diagram according to an example embodiment. Figure 6 is a structure diagram of the adapter plugging part 70 according to an example embodiment. The adapter plugging part 70 has the same plug-in positioning structure as the second end of the connecting part 10, that is, the first plug-in part 101, the second plug-in part 102, the extension part 103, the main card point part 1051, the secondary card point part 1052, the first sealing ring 106, and the handle part 701 arranged at the second end of the first plug-in part 101;

[0080] When assembled and factory, after the pump body is oiled, the first end of the adapter plugging part 70 is aligned with the adapter 20 and plugged in, then the main body part 201 or the handle part 701 is rotated clockwise, the secondary card point part of the adapter plugging part 70 is axially retreated to one of the main card port parts 2024 under the elastic force of the elastic element 50, and the main card point part of the adapter plugging part 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 axial and circumferential of the adapter plugging part 70 and the adapter 20 are completed fastening positioning, without the need of tool auxiliary fixing and will not fall off, the assembly of the pump body after oiling is completed.

[0081] In summary, the spin buckle type oil pipe quick connection structure provided by the embodiment of the utility model, through the rotation quick connection of the connecting piece 10 and the adapter 20 and the positioning of the clamping point part by the locking piece 203, the auxiliary clamping point part 1052 can be clamped into the main clamping port part 2024 under the elastic force of the elastic piece 50, the main clamping point part 1051 is axially positioned by the step formed at the junction of the first accommodating cavity 202 and the second accommodating cavity 203, and the spin buckle quick connection is completed; at this time, the axial and circumferential quick connection positioning of the connecting piece 10 and the adapter 20 is completed, the oil passage is smooth and does not leak oil, and the connecting piece 10 does not need to be rotated, so that the oil pipe joint positioning quick connection is realized and the oil pipe joint cannot be easily detached, which greatly facilitates the quick assembly of the oil pipe in the hydraulic disc brake system. On the one hand, it is suitable for length compensation when the length of the oil pipe in the hydraulic disc brake system is insufficient, and on the other hand, it can be matched with the overall structure of the upper pump and / or lower pump of the brake of the adapter 20 structure, and the assembly of the adapter 20 in the connecting end of the upper pump and / or lower pump of the brake is realized, the main body part 201 can be freely rotated, and the main clamping point part 1051 and the auxiliary clamping point part 1052 on the connecting piece 10 are arranged, so that after the connecting piece 10 is inserted into the inner cavity of the adapter 20, the main body part 201 can be conveniently rotated, and the first oil pipe 30 and the connecting piece 10 do not need to be rotated, which increases the convenience of loading and the simplicity of user operation.

[0082] Embodiment 2

[0083] The difference between this embodiment and embodiment 1 is that the utility model embodiment 2 provides a spin buckle type oil pipe quick connection structure. Figure 7 is a spin buckle type oil pipe quick connection structure according to another example embodiment. Figure 8 is a spin buckle type oil pipe quick connection structure according to another example embodiment. Figure 9 is a spin buckle type oil pipe quick connection structure according to another example embodiment.

[0084] Continue to refer to the drawings Figures 6-9 The adapter 20 is limited by the structure of the oil pipe, and the volume of the adapter 20 is limited, so in order to reduce the volume of the adapter 20, the adapter 20 is divided into a two-segment structure, and the protruding locking piece 203 can be further cancelled, and the adapter 20 has the same first accommodating cavity 2021, second accommodating cavity 2022, third accommodating cavity 2023 and fourth accommodating cavity 2024 as in the above embodiment 1, and further comprises:

[0085] The first adapter 2011 corresponds to one side of the first end of the main body 201, and the second end has an external screw segment 2012;

[0086] The second adapter 2013 corresponds to one side of the second end of the main body 201, and the external screw segment 2012 is threadedly assembled with the first end of the second adapter 2013 to form the overall structure of the main body 201; wherein the third sealing ring 2015 is arranged between the first adapter 2011 and the second adapter 2013 for sealing of the two-segment structure;

[0087] The second oil needle part 2014 is formed on the second end of the second adapter 2013, and is inserted and fixed in the internal second oil pipe 60, and the free end of the second oil pipe 60 is also assembled with the oil pipe sleeve 40 for external compression to fix the second oil needle part 2014 and the second oil pipe 60;

[0088] In summary, the spin-buckle type oil pipe quick connection structure provided by the embodiment of the utility model can be used for connection between two oil pipes to achieve lengthening of the oil pipe in the oil pressure disc brake system, and then the length of the oil pipe can be supplemented when the length of the oil pipe is insufficient, which is suitable for sudden situations during loading on one hand, and is also suitable for length supplement when the length of the oil pipe is insufficient during user modification on the other hand.

[0089] Other structures not described refer to embodiment 1.

[0090] Embodiment 3

[0091] The embodiment 3 of the application provides an oil pressure disc brake system, which comprises the spin-buckle type oil pipe quick connection structure of the above-mentioned embodiment 1 or embodiment 2.

[0092] In summary, the utility model discloses the quick joint structure and oil pressure disc brake system of screw buckle formula oil pipe, through the quick joint of the rotation of connecting piece 10 and adapter 20 and the positioning of locking piece 203 to card point part, vice card point part 1052 can be clamped into main card mouth part 2024 under the elastic force of elastic part 50, and main card point part 1051 is positioned axially with the step formed at the junction of first accommodating cavity 202 and second accommodating cavity 203, and the quick joint of screw buckle is completed, at this time, the axial and circumferential of connecting piece 10 and adapter 20 are positioned, and the oil passage is unobstructed and does not leak oil, and the quick joint of oil pipe joint is realized after the positioning of convenient, and will not easily fall off, greatly facilitate the quick assembly of oil pipe in oil pressure disc brake system, one suitable for the length make-up of oil pipe in oil pressure disc brake system, and the other can also be matched with the overall structure of oil brake upper pump and / or brake lower pump with adapter 20 structure, cooperate with the assembly of live joint 206 on main part 201, realize that main part 201 can rotate freely after the assembly of adapter 20 at the connecting end of oil brake upper pump / brake lower pump, the setting of main card point part 1051 and vice card point part 1052 on connecting piece 10 makes that after connecting piece 10 is inserted into the inner cavity of adapter 20, main part 201 can be conveniently rotated, and first oil pipe 30 and connecting piece 10 need not be rotated and rotated difficultly, increase the convenience of loading and the simplicity of user operation.

[0093] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0094] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, on the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A spin-on tubing make-up structure, characterized by, The utility model provides a quick -witted oil pipe structure of screwing, it includes a first oil pipe with an internal middle pass, a connecting piece and an adapter, the connecting piece and the adapter are internally through oil circuit, the first end of connecting piece is fixed on the free end of first oil pipe, and its second end is connected with the adapter and is limited to pass through the oil circuit, The connecting piece at least includes a first plug -in part and a clamping point part arranged on the side wall of the first plug -in part, The adapter at least includes: a main body part, which is internally through, and an axial middle part of which is provided with a first accommodating cavity, a second accommodating cavity and a third accommodating cavity arranged in sequence and communicated; a bayonet part, which is provided on the side wall surface of the first accommodating cavity and communicated to the second accommodating cavity, to accommodate the clamping point part from the bayonet part and rotate and position in the second accommodating cavity; a lock piece, which is fixedly assembled on the outer wall of the main body part, and is provided with an extension into the second accommodating cavity to limit the rotation angle of the clamping point part; wherein the inner diameter of the third accommodating cavity < the inner diameter of the first accommodating cavity < the inner diameter of the second accommodating cavity, and the edge outer diameter of the clamping point part is smaller than the inner diameter of the second accommodating cavity and larger than the inner diameter of the first accommodating cavity.

2. The spin-on tubing make-up structure of claim 1, wherein, The first end of the connecting piece is provided with a first oil needle part, and the free end of the first oil pipe is provided with an oil pipe sleeve for external compression to fix the first oil needle part and the first oil pipe.

3. The spin-on tubing make-up structure of claim 2, wherein, The connecting piece further includes: a second plug -in part, which is provided on the second end of the first plug -in part and has an outer diameter smaller than that of the first plug -in part, and a first sealing ring is radially assembled on the outer side wall of the second plug -in part, and the first sealing ring is in abutment and sealing with the inner wall of the third accommodating cavity; a ring edge part, which is provided between the first plug -in part and the first oil needle part to limit the assembly position of the first oil pipe; an extension part, which is integrally formed on one end of the second plug -in part away from the first plug -in part.

4. The spin-on tubing make-up structure of claim 3, wherein, The clamping point part includes: a main clamping point part, which is at least one in number and is arranged on the annular side wall of the first plug -in part close to the second plug -in part; a secondary clamping point part, which is at least one in number, is arranged on the annular side wall of the first plug -in part close to the second plug -in part and is distributed in circumferential direction with the first plug -in part, has the same width as the main clamping point part, and has a length greater than that of the main clamping point part and smaller than the height of the second accommodating cavity.

5. The spin-on tubing make-up structure of claim 4, wherein, The bayonet part includes: a main bayonet part, which is provided on the side wall surface of the first accommodating cavity and communicated to the second accommodating cavity, and the number of which matches the number of the main clamping point part; a secondary bayonet part, which is provided on the side wall surface of the first accommodating cavity and communicated to the second accommodating cavity, and the number of which matches the number of the secondary clamping point part.

6. The spin-on tubing make-up structure of claim 3, wherein, The quick -witted oil pipe structure of screwing further includes an elastic piece for positioning the assembly position of the connecting piece and the adapter, and the elastic piece includes: a fourth accommodating cavity, which is provided on the inner cavity position of the main body part close to the second end and communicated to the third accommodating cavity, and the inner diameter of the fourth accommodating cavity < the inner diameter of the third accommodating cavity. A positioning block movably assembled in the fourth accommodating cavity, a first end of the positioning block abutting against the extension part, and a diameter of the positioning block being greater than an inner diameter of the third accommodating cavity, a spring sleeve part being formed on a second end of the positioning block; A positioning spring sleeved on the spring sleeve part to elastically position the positioning block at a step where the fourth accommodating cavity and the third accommodating cavity meet.

7. The spin-on tubing make-up structure of claim 1, wherein, The adapter is movably assembled on a connecting end of an oil-on-pump / brake-off-pump and penetrates an oil passage of the oil-on-pump / brake-off-pump, and the adapter comprises: An adapter step integrally formed on an annular side wall of the main part near a second end of the main part; A movable sleeve movably sleeved on the annular side wall of the main part, and abutting against the adapter step axially limited after being assembled from a first end of the main part, and an outer thread being arranged on an annular outer wall of the movable sleeve and matched with an inner thread prearranged in the connecting end; Wherein, a hexagonal screw head part for matching a wrench tool is formed on an end of the movable sleeve near the connecting part.

8. The spin-on tubing make-up structure of claim 7, wherein, A second sealing ring is radially assembled on an outer side wall of the main part near the second end of the main part, and the second sealing ring abuts against and seals an inner wall surface of the connecting end.

9. The spin-on tubing make-up structure of claim 1, wherein, A second oil needle part is integrally formed on the second end of the adapter, and the second oil needle part is inserted and fixed in an inner part of an internally-through second oil pipe to connect oil passages of the first oil pipe and the second oil pipe after being screwed and quickly connected.

10. An oil pressure disc brake system characterized by comprising: The oil pressure disc brake system comprises the screwed oil pipe quick connection structure according to any one of claims 1-9.

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