Bicycle oil brake anti-lock device

Abstract

The present invention discloses an oil brake anti-lock device for a bicycle. The oil brake anti-lock device for a bicycle comprises a valve body, an oil inlet and an oil outlet are respectively arranged at two ends of the valve body, an oil delivery channel is formed between the oil inlet and the oil outlet, and a pressure limiting channel is arranged in the valve body, one end of the pressure limiting channel is connected to the oil inlet, and the other end of the pressure limiting channel is connected to the oil outlet. When the bicycle brakes suddenly, the brake oil enters the oil delivery channel from a first oil pipe, and a part of the brake oil in the oil delivery channel has an excessive oil pressure due to sudden braking, causing the part of the brake oil to first pass through the pressure limiting channel and then flow back to the oil delivery channel, and then flow out from the oil outlet and enter the disc brake clamp, so as to reduce the oil pressure of the part of the brake oil, and prevent the disc brake clamp from suddenly clamping the brake disc due to excessive oil pressure when the brake oil enters the disc brake clamp, causing the bicycle to roll over, thereby realizing the anti-lock function of the bicycle.

Description

Technical Field

[0001] The invention relates to the technical field of bicycle brakes, and in particular to an oil brake anti-lock device for a bicycle. Background Art

[0002] In order to improve the braking ability of bicycles and ensure the riding safety of users, the braking system of some bicycles, such as mountain bikes, has gradually developed from a clamp brake system to an oil brake system. Among them, the clamp brake is implemented by a clamp block control device, and its braking principle is to pull the brake line to clamp the brake block to the wheel frame to stop the wheel from rotating; the oil brake is implemented by a hydraulic disc brake device, and its braking principle is to design a disc on the wheel frame that operates synchronously with the wheel frame, and to clamp the disc through hydraulic control to stop the wheel from rotating. However, when an existing bicycle encounters an emergency at high speed, braking through a hydraulic disc brake device is still likely to cause the vehicle to skid out of control, so an effective anti-lock braking system is urgently needed to cope with the good braking and controllability of the bicycle at high speed. Summary of the invention

[0003] The embodiment of the present invention provides a bicycle oil brake anti-lock device, aiming to solve the problem that the existing oil brake device easily causes the vehicle to slide out of control.

[0004] The present invention provides a bicycle oil brake anti-lock device, comprising a valve body, wherein an oil inlet and an oil outlet are respectively arranged at two ends of the valve body, a through oil delivery channel is formed between the oil inlet and the oil outlet, a pressure limiting channel is arranged in the valve body, one end of the pressure limiting channel is connected to the oil inlet, and the other end of the pressure limiting channel is connected to the oil outlet.

[0005] Furthermore, the valve body includes a connecting part and a pressure limiting part, the oil delivery channel is located in the connecting part, the pressure limiting part has a pressure limiting chamber, the pressure limiting chamber is connected to the oil delivery channel through a first channel, and a pressure limiting component is movably arranged in the pressure limiting part, and the pressure limiting component can move in the pressure limiting chamber.

[0006] Furthermore, the pressure limiting assembly includes a first piston and a first elastic member, one end of the first elastic member abuts against the first piston, and the other end of the first elastic member abuts against an end of the pressure limiting portion away from the connecting portion.

[0007] Furthermore, the valve body also includes an oil storage part, in which an oil storage chamber is arranged, the oil storage chamber is connected with the pressure limiting chamber through a second channel, and an oil storage component is movably arranged in the oil storage part, and the oil storage component can move in the oil storage chamber.

[0008] Furthermore, the oil storage assembly includes a second piston and a second elastic member, one end of the second elastic member abuts against the second piston, and the other end of the second elastic member abuts against an end of the oil storage portion away from the pressure limiting portion.

[0009] Furthermore, the valve body also includes an oil outlet portion, in which an oil outlet chamber is arranged, the oil outlet chamber is connected with the second channel via a third channel, an oil outlet component is movably arranged in the oil outlet chamber, and the oil outlet component can move in the oil outlet chamber.

[0010] Furthermore, the oil outlet assembly includes a blocking member and a third elastic member, one end of the third elastic member abuts against the blocking member, and the other end of the third elastic member abuts against an end of the oil outlet portion away from the oil storage portion.

[0011] Furthermore, the connecting portion is provided with a plug corresponding to the plugging member, the third elastic member is located between the plugging member and the plugging member, and the oil delivery channel passes between the plugging member and the plugging member.

[0012] Furthermore, the valve body further comprises an adjusting portion, the adjusting portion is connected to one end of the pressure limiting portion away from the connecting portion, and the other end of the first elastic member abuts against the adjusting portion.

[0013] Furthermore, the pressure limiting portion is openly arranged at one end away from the connecting portion, and the adjusting portion includes an adjusting piece, an adjusting cap and a fastener, the adjusting piece is located at the open end of the pressure limiting portion, the adjusting cap is connected to the adjusting piece, the fastener simultaneously connects the adjusting piece and the adjusting cap, and the other end of the first elastic piece abuts against the adjusting piece.

[0014] The embodiment of the present invention provides an oil brake anti-lock device for a bicycle. The oil brake anti-lock device for a bicycle comprises a valve body, an oil inlet and an oil outlet are respectively provided at two ends of the valve body, an oil delivery channel is formed between the oil inlet and the oil outlet, a pressure limiting channel is provided in the valve body, one end of the pressure limiting channel is connected to the oil inlet, and the other end of the pressure limiting channel is connected to the oil outlet. The present invention is applied between a brake handle and a disc brake clamp, based on the oil delivery channel and the pressure limiting channel in the valve body, when the bicycle brakes suddenly, the brake oil enters the oil delivery channel from the oil inlet, and a part of the brake oil in the oil delivery channel has an excessive oil pressure due to sudden braking, causing the part of the brake oil to first pass through the pressure limiting channel and then flow back to the oil delivery channel, and then flow out from the oil outlet to reduce the oil pressure of the part of the brake oil, so as to prevent the brake oil from entering the disc brake clamp, and the disc brake clamp suddenly clamping the brake disc due to excessive oil pressure, causing the bicycle to roll over, thereby realizing the anti-lock function of the bicycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of a bicycle oil brake anti-lock device provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a valve body of a bicycle oil brake anti-lock device provided by an embodiment of the present invention;

[0018] Figure 3 A cross-sectional view of a valve body of a bicycle anti-lock brake device provided by an embodiment of the present invention.

[0019] Illustration: 1. Valve body; 01. Oil inlet; 02. Oil outlet; 03. Connecting part; 04. Pressure limiting part; 05. Oil storage part; 06. Oil outlet; 07. Adjusting part; 11. Pressure limiting chamber; 111. First piston; 112. First elastic member; 12. Oil storage chamber; 121. Second piston; 122. Second elastic member; 13. Oil outlet chamber; 131. Blocking member; 132. Third elastic member; 14. Plug; 15. Adjusting member; 16. Adjusting cap; 17. Fastener; 10. First channel; 20. Second channel; 30. Third channel; 2. Brake handle; 3. Disc brake clamp; 4. First oil pipe; 5. Second oil pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0021] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0022] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0023] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0024] like Figures 1 to 3 As shown, an embodiment of the present invention provides an anti-lock braking device for bicycle oil brakes. The anti-lock braking device for bicycle oil brakes comprises a valve body 1, which is assembled between a brake handle 2 and a disc brake fixture 3 of a bicycle oil brake. An oil inlet 01 and an oil outlet 02 are respectively arranged at two ends of the valve body 1, and a through oil delivery channel is formed between the oil inlet 01 and the oil outlet 02. The brake handle 2 is connected to the oil inlet 01 through a first oil pipe 4, and the disc brake fixture 3 is connected to the oil outlet 02 through a second oil pipe 5. A pressure limiting channel is arranged in the valve body 1, and one end of the pressure limiting channel is connected to the oil inlet 01, and the other end of the pressure limiting channel is connected to the oil outlet 02. The valve body 1 of the present invention is assembled between the brake handle 2 and the disc brake clamp 3 of the bicycle oil brake. Based on the oil delivery channel and the pressure limiting channel in the valve body 1, when the bicycle brakes suddenly, the brake oil enters the oil delivery channel from the oil inlet 01. The oil pressure of a part of the brake oil in the oil delivery channel is too high due to the sudden braking, causing the part of the brake oil to first pass through the pressure limiting channel and then flow back to the oil delivery channel, and then flow out from the oil outlet 02 and enter the disc brake clamp 3 to reduce the oil pressure of the part of the brake oil, and prevent the brake oil from entering the disc brake clamp 3. When the oil pressure is too high, the disc brake clamp 3 suddenly clamps the brake disc, causing the bicycle to roll over, thereby realizing the anti-lock function of the bicycle. Among them, the disc brake clamp 3 used in this application can refer to the bicycle disc brake caliper in the first embodiment disclosed in the document CN201210102736.0, and the specific clamping principle is not repeated here.

[0025] In one embodiment, in order to prevent the brake oil from being over-pressured, the valve body 1 includes a connecting portion 03 and a pressure limiting portion 04, the oil delivery channel is located in the connecting portion, and the pressure limiting portion 04 has a pressure limiting chamber 11, the pressure limiting chamber 11 is connected to the oil delivery channel through the first channel 10, and a pressure limiting component is movably arranged in the pressure limiting portion 04, and the pressure limiting component can move in the pressure limiting chamber 11. Figure 2 and Figure 3As shown, the oil delivery channel of the connecting part 03 is arranged horizontally, and the pressure limiting chamber 11 is located above the oil delivery channel. The pressure limiting chamber 11 and the oil delivery channel are connected through the first channel 10. When the user brakes suddenly, the brake oil enters the oil delivery channel through the oil inlet 01. Due to the excessive oil pressure during braking, a part of the brake oil will pass through the first channel 10, push the pressure limiting component and then enter the pressure limiting chamber 11, so as to avoid excessive amount of brake oil suddenly flowing into the disc brake clamp 3 when the user brakes suddenly, and prevent the disc brake clamp 3 from being suddenly clamped due to excessive oil pressure in the disc brake clamp 3, causing the bicycle to roll over; when the vehicle brakes at a slow speed, the brake oil pressure is not enough to push the pressure limiting component, and the brake oil flows directly from the oil inlet 01 through the oil delivery channel to the oil outlet 02.

[0026] In one embodiment, the pressure limiting assembly includes a first piston 111 and a first elastic member 112, one end of the first elastic member 112 abuts against the first piston 111, and the other end of the first elastic member 112 abuts against an end of the pressure limiting portion away from the connecting portion 03. Figure 3 As shown, when the brake is not applied, the first piston 111 is vertically arranged and blocks the passage opening of the pressure limiting chamber 11 relative to the first passage 10. When the user brakes suddenly, due to the excessive pressure of the brake oil, the brake oil flowing into the first passage 10 overcomes the elastic force of the first elastic member 112 to push the first piston 111 upward and enter the pressure limiting chamber 11, so that the first piston 111 is separated from the passage opening of the pressure limiting chamber 11 relative to the first passage 10, providing a pressure relief place for the brake oil pressure relief; when the bicycle is running at a slow speed, the brake oil entering the first passage 10 is insufficient to overcome the elastic force of the first elastic member 112 to push the first piston 111 upward due to the low oil pressure, and the brake oil flows back from the first passage 10 to the oil delivery passage. In this embodiment, in order to ensure the air tightness when the first piston 111 blocks the passage opening, the first piston 111 is a pressure limiting piston with a truncated cone-shaped piston head, and the radius of the piston head of the pressure limiting piston gradually decreases in the direction away from the first elastic member 112, and the first elastic member 112 is a pressure regulating spring.

[0027] In one embodiment, in order to prevent the brake oil pressure from being too high, the valve body 1 further includes an oil storage portion 05, in which an oil storage chamber 12 is provided, and the oil storage chamber 12 is connected to the pressure limiting chamber 11 through a second channel 20. An oil storage component is movably provided in the oil storage portion 05, and the oil storage component can move in the oil storage chamber 12. Figure 2 and Figure 3 As shown, the oil storage chamber 12 is arranged on the right side of the pressure limiting chamber 11. When the oil pressure of the brake oil entering the pressure limiting chamber 11 is still too high, the brake oil pushes the oil storage assembly of the oil storage chamber 12 along the direction of the second channel 20 to move away from the second channel 20 and enter the oil storage chamber 12 of the oil storage part 05, further providing a pressure relief place for the brake oil.

[0028] In one embodiment, the oil storage assembly includes a second piston 121 and a second elastic member 122, one end of the second elastic member 122 abuts against the second piston 121, and the other end of the second elastic member 122 abuts against an end of the oil storage portion 05 away from the pressure limiting portion 04. Figure 3 As shown, the second piston 121 is the oil storage chamber piston, the second elastic member 122 is the oil storage chamber spring, and the second piston 121 blocks the passage opening of the oil storage chamber 12 relative to the second passage 20. When the pressure of the brake oil entering the pressure limiting chamber 11 is still too high, the brake oil overcomes the elastic force of the second elastic member 122 along the direction of the second passage 20 to push the second piston 121 to move away from the second passage 20 and enter the oil storage chamber 12, further providing a pressure relief place for the brake oil pressure relief.

[0029] Furthermore, in order to increase the air tightness of the first piston 111 and the second piston 121, sealing rings may be provided around the first piston 111 and the second piston 121. Specifically, grooves may be provided around the first piston 111 and the second piston 121, and sealing rings may be provided in the grooves to improve the air tightness of the first piston 111 and the second piston 121 relative to the pressure limiting chamber 11 and the oil storage chamber 12.

[0030] In one embodiment, the valve body 1 further includes an oil outlet portion 06, in which an oil outlet chamber 13 is disposed, the oil outlet chamber 13 is connected to the second channel 20 through the third channel 30, and an oil outlet assembly is movably disposed in the oil outlet chamber 13, and the oil outlet assembly can move in the oil outlet chamber 13. Figure 3 As shown, the oil outlet chamber 13 is arranged below the second channel 20. When the oil pressure of the brake oil entering the oil storage chamber 12 is insufficient to overcome the elastic force of the second elastic member 122, the second piston 121 moves toward the second channel 20 under the tension of the second elastic member 122, and squeezes the brake oil in the oil storage chamber 12 out of the oil storage chamber 12, and the brake oil flows into the third channel 30 along the second channel 20. When the oil pressure of the brake oil is sufficient to push the oil outlet assembly to move, the brake oil pushes the oil outlet assembly to move away from the third channel 30 and enter the oil outlet chamber 13, further providing a pressure relief place for the brake oil pressure relief.

[0031] In one embodiment, the oil outlet assembly includes a plugging member 131 and a third elastic member 132, one end of the third elastic member 132 abuts against the plugging member 131, and the other end of the third elastic member 132 abuts against an end of the oil outlet portion 06 away from the oil storage portion 05. Figure 2As shown, the plugging member 131 is a steel ball, and the third elastic member 132 is a steel ball retaining spring. When the oil pressure of the brake oil is sufficient to push the plugging member to move, the brake oil pushes the plugging member to move away from the third channel 30 and enter the oil outlet chamber 13, flows out of the oil outlet chamber 13 and merges into the oil delivery channel, flows out from the oil outlet 02 along with the brake oil in the oil delivery channel, and flows into the disc brake clamp 3 through the second oil pipe 5. Compared with all the brake oil directly entering the disc brake clamp 3, the oil pressure of the brake oil is greatly reduced.

[0032] When the first piston 111, the second piston 121 and the plug 131 are pushed by the brake oil and leave the corresponding channel openings, the first channel 10, the pressure limiting chamber 11, the second channel 20, the oil storage chamber 12, the third channel 30 and the oil outlet chamber 13 are connected in sequence to form a pressure limiting channel. When the oil pressure of the brake oil is too high, the brake oil enters the first channel 10 from the side of the oil delivery channel close to the oil inlet 01, passes through the pressure limiting chamber 11, the second channel 20, the oil storage chamber 12, the third channel 30 and the oil outlet chamber 13 in sequence, and then enters the oil delivery channel from the side of the oil delivery channel close to the oil outlet 02, and finally flows out from one side of the oil outlet 02.

[0033] like Figure 2 As shown, in order to facilitate the replacement of the plugging member 131 or the third elastic member 132, the connection portion 03 is provided with a plug 14 corresponding to the plugging member 131, the third elastic member 132 is located between the plugging member 131 and the plug 14, and the oil delivery channel passes between the plugging member 131 and the plug 14. When the plugging member 131 or the third elastic member 132 needs to be replaced, only the plug 14 needs to be removed to replace and maintain the plugging member 131 and the third elastic member 132.

[0034] In one embodiment, in order to facilitate the user to adjust the hand feeling, the valve body 1 also includes an adjusting portion 07, and the adjusting portion 07 is connected to the end of the pressure limiting portion 04 away from the connecting portion 03, and the other end of the first elastic member 112 abuts against the adjusting portion 07. The user can adjust the deformation degree of the first elastic member 112 through the adjusting portion 07, and then adjust the elastic potential energy of the first elastic member 112, so as to achieve the effect of adjusting the elastic force on the first piston 111. It should be noted that by adjusting the elastic potential energy of the first elastic member 112 through the adjusting portion 07, if the elastic potential energy of the first elastic member 112 is reduced, the oil pressure required for the brake oil to enter the pressure limiting chamber 11 is also reduced accordingly; if the elastic potential energy of the first elastic member 112 is increased, the oil pressure required for the brake oil to enter the pressure limiting chamber 11 is also increased accordingly. Since the power to push the brake oil is applied by the user through the brake handle 2, there will be a difference in the sense of hand feeling.

[0035] like Figure 2As shown, the pressure limiting part 04 is open at one end away from the connecting part 03, and the adjusting part 07 includes an adjusting member 15, an adjusting cap 16 and a fastener 17. The adjusting member 15 is located at the open end of the pressure limiting part 04, the adjusting cap 16 is connected to the adjusting member 15, and the fastener 17 simultaneously connects the adjusting member 15 and the adjusting cap 16, and the other end of the first elastic member 112 abuts against the adjusting member 15. In this embodiment, the adjusting member 15 is a knob, the adjusting cap 16 is a knob cap, and the fastener 17 is a fastening screw. A threaded hole is provided on the side of the knob cap, and a mounting hole is provided on the end face of the knob cap facing the knob, and a fixing hole is provided on the side of the knob at a position opposite to the fixing hole, and one end of the knob is embedded in the mounting hole, and the knob is fixedly connected to the knob cap by extending the fastening screw into the threaded hole and the fixing hole. The knob extends from the open side of the pressure limiting part 04, and the part of the knob extending into the pressure limiting part 04 is provided with a limiting part. The inner ring of the pressure limiting part 04 is provided with a retaining ring, and the retaining ring is located at the end of the limiting part away from the first piston 111. The retaining ring is used to limit the direction of the limiting part away from the first piston 111. One end of the first elastic member 112 abuts against the knob, and the other end is connected to the first piston 111. The inner peripheral wall of the knob cap is provided with an internal thread, and the position of the pressure limiting part 04 opposite to the knob cap is provided with an external thread adapted to the internal thread. The knob cap and the pressure limiting part 04 are threadedly connected through the cooperation of the internal thread and the external thread. The elastic potential energy of the first elastic member 112 can be adjusted by rotating the knob cap. It should be noted that when the knob cap is turned to increase the elastic potential energy of the first elastic member 112, the first elastic member 112 is in a compressed state, and the knob moves downward; when the knob cap is turned to reduce the elastic potential energy of the first elastic member 112, the first elastic member 112 is in a relatively relaxed state, and the knob moves upward, wherein the range of upward movement of the knob is limited by the retaining ring, that is, the fixed position of the retaining ring can be set according to the minimum oil pressure limited by the pressure limiting chamber 11.

[0036] The present invention sets a valve body 1 in the existing hydraulic disc brake device. Based on the oil delivery channel and the pressure limiting channel (composed of a first channel 10, a pressure limiting chamber 11, a second channel 20, an oil storage chamber 12, a third channel 30 and an oil outlet chamber 13) provided in the valve body 1, compared with the existing oil brake device which only has a brake handle 2 and a disc brake clamp 3, when the bicycle is suddenly braked, the brake oil of the present invention enters the oil delivery channel from the oil inlet 01. Due to the excessive oil pressure caused by sudden braking, a part of the brake oil in the oil delivery channel first passes through the pressure limiting channel and then flows back to the oil delivery channel, and then flows out from the oil outlet 02 and enters the disc brake clamp 3, so as to reduce the oil pressure of this part of the brake oil, and prevent the disc brake clamp 3 from suddenly clamping the brake disc due to excessive oil pressure when the brake oil enters the disc brake clamp 3, causing the bicycle to roll over.

[0037] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0038] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive.

[0039] Inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A bicycle oil brake anti-lock device, characterized in that: It comprises a valve body, wherein an oil inlet and an oil outlet are respectively arranged at two ends of the valve body, an oil delivery channel is formed between the oil inlet and the oil outlet, a pressure limiting channel is arranged in the valve body, one end of the pressure limiting channel is connected to the oil inlet, and the other end of the pressure limiting channel is connected to the oil outlet; The valve body comprises a connecting portion and a pressure-limiting portion, the oil delivery channel is located in the connecting portion, a pressure-limiting chamber is provided in the pressure-limiting portion, the pressure-limiting chamber is communicated with the oil delivery channel through a first channel, a pressure-limiting component is movably arranged in the pressure-limiting portion, and the pressure-limiting component can move in the pressure-limiting chamber, wherein the oil delivery channel of the connecting portion is horizontally arranged, and the pressure-limiting chamber is located above the oil delivery channel; The valve body further comprises an oil storage part, wherein an oil storage chamber is arranged in the oil storage part, the oil storage chamber is communicated with the pressure limiting chamber through a second passage, an oil storage assembly is movably arranged in the oil storage part, and the oil storage assembly can move in the oil storage chamber, wherein the oil storage chamber is arranged on the right side of the pressure limiting chamber; The valve body further comprises an oil outlet portion, wherein an oil outlet chamber is arranged in the oil outlet portion, the oil outlet chamber is communicated with the second channel via a third channel, an oil outlet assembly is movably arranged in the oil outlet chamber, and the oil outlet assembly can move in the oil outlet chamber, wherein the oil outlet chamber is arranged below the second channel; The first channel, the pressure limiting chamber, the second channel, the oil storage chamber, the third channel and the oil outlet chamber are sequentially connected to form a pressure limiting channel.

2. The bicycle oil brake anti-lock device according to claim 1, characterized in that: The pressure limiting assembly includes a first piston and a first elastic member, one end of the first elastic member abuts against the first piston, and the other end of the first elastic member abuts against an end of the pressure limiting portion away from the connecting portion.

3. The bicycle oil brake anti-lock device according to claim 1, characterized in that: The oil storage assembly includes a second piston and a second elastic member, one end of the second elastic member abuts against the second piston, and the other end of the second elastic member abuts against an end of the oil storage portion away from the pressure limiting portion.

4. The bicycle oil brake anti-lock device according to claim 1, characterized in that: The oil outlet assembly comprises a blocking member and a third elastic member, one end of the third elastic member abuts against the blocking member, and the other end of the third elastic member abuts against an end of the oil outlet portion away from the oil storage portion.

5. The bicycle oil brake anti-lock device according to claim 4, characterized in that: The connecting portion is provided with a plug corresponding to the plugging member, the third elastic member is located between the plugging member and the plugging member, and the oil delivery channel passes between the plugging member and the plugging member.

6. The bicycle oil brake anti-lock device according to claim 2, characterized in that: The valve body further includes an adjusting portion, which is connected to one end of the pressure limiting portion away from the connecting portion, and the other end of the first elastic member abuts against the adjusting portion.

7. The bicycle oil brake anti-lock device according to claim 6, characterized in that: The pressure limiting portion is open at one end away from the connecting portion, and the adjusting portion includes an adjusting member, an adjusting cap and a fastener. The adjusting member is located at the open end of the pressure limiting portion, the adjusting cap is connected to the adjusting member, the fastener simultaneously connects the adjusting member and the adjusting cap, and the other end of the first elastic member abuts against the adjusting member.

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