Wire pulling oil brake device, handlebar and bicycle

Abstract

The utility model discloses a wire pulling oil brake device, a handlebar and a bicycle, the wire pulling oil brake device comprises a piston assembly, a fine tuning piece, a stay wire terminal and a stay wire, one end of the stay wire is connected with a brake rod of the bicycle; the other end of the stay wire sequentially penetrates through the stay wire terminal, the fine tuning piece and the piston assembly and is connected with the piston assembly, and the stay wire terminal is connected with the stay wire; one end of the fine tuning piece is connected with the stay wire terminal, and the other end of the fine tuning piece is adjustably connected with the piston assembly to change the bending degree of the stay wire terminal so as to change the tightness of the stay wire. By arranging the fine tuning piece, a user can drive the stay wire terminal to generate certain bending deformation only by adjusting the fine tuning piece, and the bending deformation of the stay wire terminal changes the bending degree of the stay wire in the stay wire terminal, so that the stay wire can be tensioned, the brake stroke can be adjusted, the adjusting mode is simple and convenient, and the practicability is high. Meanwhile, the braking hand feeling and the braking effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a wire-pull oil brake device, a handlebar and a bicycle. Background Art

[0002] The brake system plays an important role in ensuring driving safety. Its components mainly include brake levers, brake cables and wire pipes, and brakes. During use, as the brakes are used for longer, the brake pads will wear out and the brake cables will gradually loosen, which will lead to an increase in the brake stroke (clearance). A larger brake stroke will affect the braking performance of the brakes, which means that even if the handle is tightly gripped, the vehicle cannot be effectively braked. If the brake stroke cannot be adjusted in time, it is very easy to cause a safety accident.

[0003] In traditional bicycle brake systems, the brake stroke is adjusted mainly by adjusting the length of the brake line with a fixing screw at the end of the brake line and the connection between the brake, thereby achieving the adjustment of the brake stroke. However, ordinary users cannot adjust the brake stroke by themselves, and need to rely on professional maintenance personnel to use special maintenance tools to adjust it, so the adjustment process of the brake stroke is not convenient. Utility Model Content

[0004] The utility model aims to provide a wire-pull oil brake device, a handlebar and a bicycle, aiming to solve the problems of complicated adjustment process of the existing brake stroke.

[0005] The utility model provides a wire-pull oil brake device, comprising: a piston assembly, a fine-tuning member, a wire-pull terminal and a wire, one end of the wire being connected to the brake lever of a bicycle, the other end of the wire passing through the wire-pull terminal, the fine-tuning member and the piston assembly in sequence and connected to the piston assembly, the wire-pull terminal being connected to the wire;

[0006] One end of the fine-tuning member is connected to the wire-pulling terminal, and the other end of the fine-tuning member is adjustably connected to the piston assembly to change the bending degree of the wire-pulling terminal and thus change the tightness of the wire.

[0007] Furthermore, the piston assembly includes: a piston cylinder, a piston rod and a fixing part. A piston cavity is provided in the piston cylinder. The piston rod is movably installed in the piston cavity. The piston rod is connected to the fixing part. The other end of the pull wire passes through the pull wire terminal, the fine-tuning part, the piston cylinder, the piston rod and the fixing part in sequence.

[0008] Further, the other end of the fine-tuning member is provided with an external thread, and the piston assembly is provided with an internal thread; or, the other end of the fine-tuning member is provided with an internal thread, and the piston assembly is provided with an external thread;

[0009] Wherein, the external thread is threadably connected to the internal thread.

[0010] Furthermore, a cross section of one end of the fine-tuning member is polygonal.

[0011] Furthermore, a receiving groove is provided at one end of the fine-tuning member, and the wire terminal can be movably installed in the receiving groove.

[0012] Furthermore, it also includes: an anti-loosening member, which is threadedly connected to the outer surface of the fine-tuning member so that the anti-loosening member abuts against the piston assembly.

[0013] The embodiment of the utility model further provides a handlebar, which is equipped with the above-mentioned wire-pull oil brake device, and a receiving cavity is provided in the handlebar, and the wire-pull oil brake device is installed in the receiving cavity.

[0014] Furthermore, an oil injection through hole is provided on the handlebar, and an oil injection hole is provided on the piston assembly, and the oil injection through hole is provided corresponding to the oil injection hole.

[0015] Further, when viewed along the forward direction of the bicycle, the oil filling through hole is arranged above the oil filling hole, and the oil filling through hole is arranged on the top of the handlebar.

[0016] The utility model also provides a bicycle, comprising: the above-mentioned handlebar.

[0017] The utility model discloses a wire-pull oil brake device, a handlebar and a bicycle. The wire-pull oil brake device includes: a piston assembly, a fine-tuning part, a wire terminal and a wire. One end of the wire is connected to the brake lever of the bicycle, and the other end of the wire passes through the wire terminal, the fine-tuning part and the piston assembly in sequence and is connected to the piston assembly. The wire terminal is connected to the wire; one end of the fine-tuning part is connected to the wire terminal, and the other end of the fine-tuning part is adjustably connected to the piston assembly to change the bending degree of the wire terminal and thus change the tightness of the wire. The utility model provides a fine-tuning part so that the user only needs to adjust the fine-tuning part to drive the wire terminal to undergo a certain bending deformation. The bending deformation of the wire terminal changes the bending degree of the inner wire, so that the wire can be tightened, thereby realizing the adjustment of the brake stroke. The adjustment method is simple and convenient, and at the same time improves the braking feel and braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a wire-pull oil brake device;

[0020] Figure 2 This is an exploded view of the cable-pull oil brake device;

[0021] Figure 3 It is a cross-sectional schematic diagram of a wire-pull oil brake device;

[0022] Figure 4 It is a structural schematic diagram of a fine-tuning component;

[0023] Figure 5 It is a structural schematic diagram of the anti-loosening part;

[0024] Figure 6 It is a schematic diagram of the structure of the piston cylinder;

[0025] Figure 7 is an exploded view of the second sealing member;

[0026] Figure 8 It is a schematic diagram of the structure of the handlebar;

[0027] Description of the markings in the figure:

[0028] 1. Piston assembly; 11. Piston cylinder; 111. Piston chamber; 1111. First piston chamber; 1112. Second piston chamber; 112. Oil storage chamber; 113. First through hole; 114. Second through hole; 12. Piston rod; 13. Fixing member; 14. First blocking member; 15. Second blocking member; 151. Blocking plate; 1511. Blocking hole; 152. Blocking block; 16. Third blocking member; 17. Fourth blocking member; 18. Oil filling hole;

[0029] 2. Fine-tuning part; 21. Accommodating slot;

[0030] 3. Pull wire terminal;

[0031] 4. Pull the wire;

[0032] 5. Anti-loosening parts; 51. Anti-slip texture;

[0033] 6. handlebar; 61. accommodating cavity; 62. connecting hole; 63. oil injection hole;

[0034] 7. Mounting bracket; 71. Adjustment slot;

[0035] 8. Mounting parts. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] 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.

[0038] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0039] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0040] See also Figure 1-3 The utility model provides a wire-pull oil brake device, comprising: a piston assembly 1, a fine-tuning member 2, a wire terminal 3 and a wire 4, one end of the wire 4 is connected to the brake lever of a bicycle, the other end of the wire 4 passes through the wire terminal 3, the fine-tuning member 2 and the piston assembly 1 in sequence and is connected to the piston assembly 1, and the wire terminal 3 is connected to the wire 4; one end of the fine-tuning member 2 is connected to the wire terminal 3, and the other end of the fine-tuning member 2 is adjustably connected to the piston assembly 1 to change the bending degree of the wire terminal 3 and thus change the tightness of the wire 4.

[0041] The utility model provides a fine-tuning part 2 so that the user only needs to adjust the fine-tuning part 2 to cause the wire terminal 3 to undergo a certain bending deformation. The bending deformation of the wire terminal 3 changes the bending degree of the inner wire 4, so that the wire 4 can be tightened, thereby achieving adjustment of the braking stroke. The adjustment method is simple and convenient, and at the same time improves the braking feel and braking effect.

[0042] Its working principle is: when the brake stroke needs to be fine-tuned, the position of the fine-tuning part 2 is moved away from the piston assembly 1. The movement of the fine-tuning part 2 causes the wire terminal 3 to undergo a certain bending deformation. The bending deformation of the wire terminal 3 will change the bending degree of the inner wire 4, thereby tightening the wire 4, thereby achieving the adjustment of the brake stroke and brake feel.

[0043] Specifically, the piston assembly 1 includes: a piston cylinder 11, a piston rod 12 and a fixing part 13. A piston cavity 111 is provided in the piston cylinder 11. The piston rod 12 is movably installed in the piston cavity 111. The piston rod 12 is connected to the fixing part 13. The other end of the pull wire 4 passes through the pull wire terminal 3, the fine-tuning part 2, the piston cylinder 11, the piston rod 12 and is connected to the fixing part 13 in sequence.

[0044] When the user presses the brake lever, the pull wire 4 connected to the brake lever will be pulled out toward the brake lever, thereby driving the fixing member 13 to move toward the brake lever, and then the movement of the fixing member 13 will drive the piston rod 12 to move toward the brake lever. The movement of the piston rod 12 toward the brake lever will compress the hydraulic oil in the piston chamber 111, and the hydraulic oil will be injected into the brake caliper, thereby achieving braking.

[0045] In this embodiment, the other end of the fine-tuning member 2 is provided with an external thread, and the piston assembly 1 is provided with an internal thread; or, the other end of the fine-tuning member 2 is provided with an internal thread, and the piston assembly 1 is provided with an external thread;

[0046] Wherein, the external thread is threadedly connected with the internal thread.

[0047] Specifically, the other end of the fine-tuning member 2 is provided with an external thread, and the piston cylinder 11 is provided with an internal thread; or, the other end of the fine-tuning member 2 is provided with an internal thread, and the piston cylinder 11 is provided with an external thread;

[0048] Wherein, the external thread is threadedly connected with the internal thread.

[0049] The fine-tuning member 2 is connected to the piston cylinder 11 by a threaded connection, so that the user can perform fine-tuning very conveniently and accurately. The fine-tuning member 2 can be rotated to adjust the distance between the fine-tuning member 2 and the piston cylinder 11, thereby achieving accurate adjustment of the curvature of the wire terminal 3; in addition, the threaded connection has high stability. Once the fine-tuning member 2 is tightly connected to the piston cylinder 11, it is not easy to loosen or fall off, ensuring the stability and reliability of the entire structure.

[0050] Furthermore, the cross section of one end of the fine-tuning member 2 is a polygon (eg Figure 4As shown), for example, the cross-section of the fine-tuning part 2 can be a pentagon or a hexagon. The contact area of ​​the polygonal cross-section is larger than that of the circular cross-section, which increases the friction and reduces the risk of slipping due to external forces. At the same time, it also reduces the force per unit area when the user rotates, thereby improving the user's operating experience. The structural characteristics of the polygonal cross-section fine-tuning part 2 make its rotation direction clearer and easier for the user to control and adjust. In addition, the polygonal cross-section fine-tuning part 2 can also be equipped with a corresponding rotating tool or handle to further improve the convenience and accuracy of its rotation.

[0051] In this embodiment, a receiving groove 21 is provided at one end of the fine-tuning member 2 , and the wire terminal 3 is movably installed in the receiving groove 21 .

[0052] The design of the receiving groove 21 can provide stable support and positioning for the wire terminal 3, ensuring that the wire terminal 3 will not deviate when it is deformed during the movement of the fine-tuning member 2. This stability helps to improve the accuracy and reliability of the fine-tuning operation and reduce the error caused by position change. At the same time, the wire terminal 3 can be movably installed in the receiving groove 21, making the installation and removal process simple and quick. The user can easily complete the installation and removal of the wire terminal 3 without using complex tools or performing cumbersome operations. This improves work efficiency and reduces maintenance costs.

[0053] In this embodiment, please refer to Figure 1 and Figure 2 , and also includes: an anti-loosening member 5, which is threadedly connected to the outer surface of the fine-tuning member 2 so that the anti-loosening member 5 abuts against the piston assembly 1.

[0054] When the fine-tuning part 2 is adjusted to a suitable position, the anti-loosening part 5 is rotated to move the anti-loosening part 5 toward the piston cylinder 11, and the side of the anti-loosening part 5 abuts against the piston cylinder 11, thereby effectively reducing the tendency of the fine-tuning part 2 to move toward the piston cylinder 11 caused by riding vibration and other factors, thereby preventing the pull wire 4 from loosening.

[0055] For further information, see Figure 5 The anti-slip parts 5 are all provided with anti-slip patterns 51 or are covered with anti-slip rubber, etc. The anti-slip patterns 51 or the anti-slip rubber can increase the friction between the user's hands and the anti-slip parts 5, so that the user can hold them more firmly when operating these parts, preventing operational errors caused by hand slippage.

[0056] In this embodiment, please refer to Figure 3 and Figure 6The piston chamber 111 includes: a first piston chamber 1111 and a second piston chamber 1112. An oil storage chamber 112 is arranged in the piston cylinder 11. The oil storage chamber 112 is communicated with the piston chamber 111. The oil storage chamber 112 is communicated with the first piston chamber 1111 through a first through hole 113. The oil storage chamber 112 is communicated with the second piston chamber 1112 through a second through hole 114. One piston rod 12 is arranged in the first piston chamber 1111, and the other piston rod 12 is arranged in the second piston chamber 1112.

[0057] For further information, see Figure 2 A first blocking member 14 and a second blocking member 15 for blocking the first piston chamber 1111 are respectively provided at both ends of the first piston chamber 1111, and a third blocking member 16 and a fourth blocking member 17 for blocking the second piston chamber 1112 are respectively provided at both ends of the second piston chamber 1112.

[0058] The design of the four blocking pieces can not only prevent the piston assembly 1 from slipping inside the piston cylinder 11 , but also prevent foreign matter from entering the piston cylinder 11 , thereby ensuring the normal operation and long-term stability of the piston assembly 1 .

[0059] Specifically, the first blocking member 14 and the third blocking member 16 are both arranged at one end of the piston cylinder 11, the first blocking member 14 passes through the third blocking member 16 and is connected to the piston cylinder 11, the second blocking member 15 and the fourth blocking member 17 are both arranged at the other end of the piston cylinder 11, the fourth blocking member 17 passes through the second blocking member 15 and is connected to the piston cylinder 11.

[0060] The first blocking member 14 and the third blocking member 16 are integrated at one end of the piston cylinder 11, and the second blocking member 15 and the fourth blocking member 17 are integrated at the other end. This design makes the structure of the piston cylinder 11 more compact, reduces the overall size, and is convenient for installation and use in a limited space. The third blocking member 16 is installed on the piston cylinder 11 through the first blocking member 14, and the second blocking member 15 is installed on the piston cylinder 11 through the fourth blocking member 17. This installation method not only ensures a firm connection between the blocking member and the piston cylinder 11, but also makes the replacement and maintenance of the blocking member more convenient. When repair or replacement is needed, the user can quickly disassemble and replace the corresponding blocking member, thereby reducing downtime and maintenance costs.

[0061] For further information, see Figure 7 The second blocking member 15 includes: a blocking plate 151 and a blocking block 152. The blocking plate 151 is provided with two blocking holes 1511. The fourth blocking member 17 passes through one of the blocking holes 1511 and is connected to the piston cylinder 11 to install the second blocking member 15 on the piston cylinder 11. The blocking block 152 is installed on the other blocking hole 1511. The blocking block 152 is arranged corresponding to the first piston cavity 1111 to block the first piston cavity 1111.

[0062] The second blocking member 15 combines the design of the blocking plate 151 and the blocking block 152, so that the structure can be used to be installed on the piston cylinder 11 and can effectively block the first piston chamber 1111. This design integrates multiple functions into one component, improving the flexibility of the structure and the diversity of functions.

[0063] It should be noted that the third blocking member 16 can adopt the same structural design as the second blocking member 15, and the first blocking member 14 and the fourth blocking member 17 can adopt the same structural design. This standardized design makes the production, installation and maintenance process more unified and efficient, reduces the differences between different components, and reduces production complexity and cost.

[0064] In this embodiment, the pull wire terminal 3 can be one end of the Bowden cable sleeve, and the adjustment of the pull wire 4 is achieved by adjusting the sleeve of the Bowden cable (the sleeve is a flexible hard tube) to cause it to undergo a certain bending deformation. The bending deformation of the sleeve can change the bending degree of the pull wire 4 in the sleeve, and then the pull wire 4 can be tightened to adjust its braking force (i.e., the braking feel).

[0065] See also Figure 8 This embodiment further provides a handlebar 6 , which is equipped with the wire-pull oil brake device of the above embodiment. A accommodating cavity 61 is provided in the handlebar 6 , and the wire-pull oil brake device is installed in the accommodating cavity 61 .

[0066] By installing the wire-pull hydraulic brake device inside the handlebar 6, the wire-pull hydraulic brake device and the handlebar 6 are integrated into one, thereby reducing the wind resistance when riding the bicycle and improving the riding speed and efficiency.

[0067] To achieve the connection between the cable-pull oil brake device and the handlebar 6, please refer to Figure 1 and Figure 2 This embodiment also includes: a mounting bracket 7 and a mounting member 8 for mounting the piston cylinder 11 on the handlebar 6 of the bicycle, one end of the mounting bracket 7 is connected to the piston cylinder 11, and the other end of the mounting bracket 7 is connected to the handlebar 6 through the mounting member 8.

[0068] Specifically, the mounting member 8 may be a screw or a bolt, and the handlebar 6 is provided with a connecting hole 62 (such as Figure 8 As shown), the mounting bracket 7 is provided with an adjustment slot 71 (as shown Figure 1 As shown), the mounting member 8 passes through the adjusting groove 71 and is threadedly connected to the connecting hole 62, thereby realizing the connection between the wire-pull oil brake device and the handlebar 6.

[0069] In this embodiment, please refer to Figure 3 and Figure 6The piston cylinder 11 is provided with an oil storage chamber 112, which is in communication with the piston chamber 111. When the piston rod 12 reciprocates in the piston cylinder 11, the oil in the piston chamber 111 may gradually decrease due to the sealing and friction effects. At this time, the oil storage chamber 112 in communication with the piston chamber 111 can replenish the oil in the piston chamber 111 in real time, ensuring that the piston chamber 111 always has enough oil.

[0070] Furthermore, the handlebar 6 is provided with an oil injection hole 63 (such as Figure 8 As shown), the piston assembly 1 is provided with an oil filling hole 18 (as shown Figure 6 As shown), the oil filling through hole 63 is arranged corresponding to the oil filling hole 18.

[0071] By providing an oil filling through hole 63 on the handlebar 6 and corresponding to the oil filling hole 18 on the piston assembly 1, the piston assembly 1 can be easily filled with oil. The piston assembly 1 can be filled with oil by injecting a proper amount of hydraulic oil through the oil filling through hole 63 without disassembling or opening the entire handlebar 6, which greatly improves the convenience of oil filling.

[0072] Further, when viewed along the forward direction of the bicycle, the oil filling through hole 63 is arranged above the oil filling hole 18 , and the oil filling through hole 63 is arranged on the top of the handlebar 6 .

[0073] The oil filling through hole 63 is arranged at the top of the handlebar 6, so that when filling oil, the user does not need to bend down or perform complicated operations, but only needs to fill oil directly through the oil filling through hole 63 on the top, which greatly improves the convenience of operation.

[0074] This embodiment also provides a wire-pull oil brake device, including: the handlebar 6 of the above embodiment.

[0075] 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 utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0076] 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.

[0077] 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 wire-pull oil brake device, characterized in that: include: A piston assembly, a fine-tuning member, a wire terminal and a wire, one end of the wire is connected to the brake lever of the bicycle, the other end of the wire passes through the wire terminal, the fine-tuning member and the piston assembly in sequence and is connected to the piston assembly, and the wire terminal is connected to the wire; One end of the fine-tuning member is connected to the wire-pulling terminal, and the other end of the fine-tuning member is adjustably connected to the piston assembly to change the bending degree of the wire-pulling terminal and thus change the tightness of the wire.

2. The wire-pull oil brake device according to claim 1, characterized in that: The piston assembly includes: a piston cylinder, a piston rod and a fixing part. A piston cavity is provided in the piston cylinder. The piston rod is movably installed in the piston cavity. The piston rod is connected to the fixing part. The other end of the pull wire passes through the pull wire terminal, the fine-tuning part, the piston cylinder, the piston rod and is connected to the fixing part in sequence.

3. The wire-pull oil brake device according to claim 1, characterized in that: The other end of the fine-tuning member is provided with an external thread, and the piston assembly is provided with an internal thread; or the other end of the fine-tuning member is provided with an internal thread, and the piston assembly is provided with an external thread; Wherein, the external thread is threadably connected to the internal thread.

4. The wire-pull oil brake device according to claim 1, characterized in that: The cross section of one end of the fine-tuning member is polygonal.

5. The wire-pull oil brake device according to claim 1, characterized in that: One end of the fine-tuning member is provided with a receiving groove, and the wire pulling terminal can be movably installed in the receiving groove.

6. The wire-pull oil brake device according to claim 1, characterized in that: Also includes: An anti-loosening member is threadedly connected to the outer surface of the fine-tuning member so that the anti-loosening member abuts against the piston assembly.

7. A handlebar equipped with a cable-operated oil brake device as claimed in any one of claims 1 to 6, characterized in that: A accommodating cavity is arranged in the handlebar, and the wire-pull oil brake device is installed in the accommodating cavity.

8. The handlebar according to claim 7, characterized in that The handlebar is provided with an oil injection through hole, the piston assembly is provided with an oil injection hole, and the oil injection through hole is arranged corresponding to the oil injection hole.

9. The handlebar according to claim 8, characterized in that Observing along the forward direction of the bicycle, the oil injection through hole is arranged above the oil injection hole, and the oil injection through hole is arranged on the top of the handlebar.

10. A bicycle, characterized in that: include: A handlebar as claimed in any one of claims 7 to 9.

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