Brake handle

Abstract

The brake handle is connected to the rear end portion of a steering pull tube, the steering pull tube is connected with a steering cross rod through the front end portion of the steering pull tube, and the steering cross rod is arranged on the front portion of a bicycle body and used for being connected with a front wheel. The brake handle comprises a connecting part of which the front end part is connected to the rear end part of the steering pull tube, a fixed part of which one end is connected to the connecting part, and a movable part of which one end can be rotationally connected to the connecting part around a first axis, and the movable part is arranged between the steering pull tube and the fixed part; the brake handle further comprises a connecting base arranged on the movable part and a brake handle drawing wire or a brake handle oil lever piston with one end movably connected to the connecting base. The brake handle drawing wire or brake handle brake fluid is arranged in the steering drawing pipe. The brake handle further comprises an elastic piece which is used for providing elastic restoring force for driving the movable part to rotate and reset. According to the brake handle, the brake handle drawing wire or the brake handle oil pipe can be hidden in the steering drawing pipe, the attractiveness is high, and potential safety hazards caused by falling of the brake handle drawing wire or the brake handle oil pipe are completely eradicated.

Description

Technical Field

[0001] The utility model relates to a brake lever. Background Art

[0002] For the existing recumbent bicycle, the steering pull tube for controlling the front wheel to turn generally extends from the front part of the vehicle body to the vicinity of the middle part of the vehicle body, and the front wheel is controlled to turn by the brake levers located on both sides of the middle part of the vehicle body, which results in relatively long brake cable or brake oil pipe of the brake lever.

[0003] In the prior art, one end of the brake cable or the brake oil pipe is located inside the brake lever handle, and the whole brake cable or brake oil pipe is exposed outside the steering pull tube. Fixing the exposed brake cable or brake oil pipe not only increases the cost and has poor aesthetics, but also the brake cable or brake oil pipe that moves back and forth with the steering pull tube over a long distance is prone to falling off, having certain potential safety hazards. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a brake lever that can hide the brake cable or the brake oil pipe in the steering pull tube, has high aesthetics, and eliminates the potential safety hazards caused by the falling off of the brake cable or the brake oil pipe.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A brake lever is connected to the rear end of the steering pull tube. The steering pull tube is connected to a steering cross bar through its front end, and the steering cross bar is arranged at the front part of the bicycle body and is used for connecting the front wheel. The brake lever includes a connecting part with its front end connected to the rear end of the steering pull tube, a fixing part with one end connected to the connecting part, and a movable part with one end rotatably connected to the connecting part around a first axis line. The movable part is arranged between the steering pull tube and the fixing part;

[0007] The brake lever further includes a connecting seat arranged on the movable part, and a brake cable or a piston of a brake oil cylinder with one end movably connected to the connecting seat. The brake cable or the brake brake fluid is arranged in the steering pull tube;

[0008] The brake lever further includes an elastic member, and the elastic member is used to provide an elastic restoring force for driving the movable part to rotate and reset.

[0009] Preferably, the connecting part is arranged in the front-rear direction and the middle part thereof is higher than its front end. The fixing part is fixedly connected to the rear end of the connecting part through its upper end or middle part. The movable part is rotatably connected to the middle part of the connecting part through its upper end or middle part. The first axis line is higher than the axis line of the steering pull tube, and the connecting seat is located below the first axis line.

[0010] More preferably, the elastic member is a torsion spring disposed between the movable portion and the connecting portion.

[0011] Even more preferably, the movable portion and the fixed portion are arranged at intervals along the length extension direction of the steering pull tube.

[0012] Preferably, the connecting portion is arranged in the front-rear direction and the middle portion thereof is lower than the front end portion thereof. The fixed portion is fixedly connected to the rear end portion of the connecting portion through its upper end portion or middle portion. The movable portion is rotatably connected to the middle portion of the connecting portion through its upper end portion or middle portion. The first axis line is lower than the axis line of the steering pull tube, and the connecting seat is located above the first axis line.

[0013] More preferably, the elastic member is a compression spring disposed between the steering pull tube and the brake lever oil cylinder piston.

[0014] Even more preferably, the movable portion and the fixed portion are arranged at intervals along the length extension direction of the steering pull tube.

[0015] Preferably, the brake lever further includes a connecting member for connecting the connecting portion and the steering pull tube.

[0016] Preferably, the brake lever further includes a pin shaft passing through the connecting portion and the movable portion. The axis line of the pin shaft is the first axis line. The axis line of the pin shaft is arranged in the left-right direction and is perpendicular to the steering pull tube.

[0017] Preferably, the connecting seat is integrally formed with the movable portion or is rotatably connected or fixedly connected.

[0018] Preferably, there are a pair of brake levers, which are respectively connected to a pair of steering pull tubes arranged in the left-right direction.

[0019] Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art: For the brake lever of the present utility model, by providing a connecting portion with the front end portion connected to the rear end portion of the steering pull tube, the movable portion is disposed between the steering pull tube and the fixed portion, and the connecting seat for connecting one end of the brake lever wire or the brake lever oil cylinder piston is disposed on the movable portion, so that the brake lever wire or the brake lever oil cylinder piston passing through one end of the steering pull tube can be directly connected to the connecting seat, thereby making the movement direction of the brake lever wire or the brake lever oil cylinder piston consistent with the direction of the steering pull tube, providing a necessary condition for the brake lever wire or the brake lever oil pipe to be hidden in the steering pull tube. The overall aesthetics of the brake lever is relatively high, and the potential safety hazard caused by the accidental detachment of the brake lever wire or the brake lever oil pipe is eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 is a schematic structural diagram of a brake lever according to Embodiment 1 of the present utility model;

[0021] Attached Figure 2 FIG. Figure 2 is an exploded structural view of the brake handle according to Embodiment 1 of the present utility model;

[0022] Attached Figure 3 FIG. Figure 3 is a structural view of the brake handle according to Embodiment 2 of the present utility model;

[0023] Attached Figure 4 FIG. Figure 4 is a sectional structural view of the brake handle according to Embodiment 2 of the present utility model.

[0024] Wherein: 1, steering pull pipe; 2, steering cross bar; 3, front fork; 4, front wheel; 5, connecting part; 6, fixing part; 7, movable part; 8, connecting seat; 9, brake handle wire; 10, elastic member; 11, connecting member; 12, pin shaft; 13, brake handle oil cylinder piston; 14, brake handle oil pipe. Detailed implementation manners

[0025] The technical solution of the present utility model will be further described below in conjunction with specific embodiments and the drawings.

[0026] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0027] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "inner", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0029] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0030] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present utility model. To simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] See Figure 1-2 As shown in the figure, Embodiment 1 provides a brake lever for a recumbent bicycle. The brake lever is connected to the rear end of the steering pull rod 1. The steering pull rod 1 is connected to the steering cross bar 2 through its front end. The steering cross bar 2 is arranged at the front part of the bicycle body and is connected to the front wheel 4 through the front fork 3. The front end of the steering pull rod 1 is rotatably connected to one end of the steering cross bar 2; or the steering pull rod 1 and the steering cross bar 2 are connected through a swing rod, that is, one end of the swing rod is rotatably connected to the front end of the steering pull rod 1, and the other end of the swing rod is rotatably connected to one end of the steering cross bar 2. There is a pair of such brake levers, which are respectively connected to a pair of steering pull rods 1 arranged in the left-right direction. The user's hands are located near the middle of the bicycle body and are used to respectively hold the pair of brake levers.

[0033] The brake lever includes a connecting portion 5 with its front end connected to the rear end of the steering pull rod 1, a fixing portion 6 with one end connected to the connecting portion 5, and a movable portion 7 with one end rotatably connected to the connecting portion 5 about a first axis. The movable portion 7 is disposed between the steering pull rod 1 and the fixing portion 6. In this embodiment, the first axis is arranged in the left-right direction and is perpendicular to the steering pull rod 1.

[0034] The brake lever further includes a connecting seat 8 provided on the movable portion 7 and a brake lever wire 9 with one end connected to the connecting seat 8. The brake lever wire 9 is threaded through the steering pull rod 1. The connecting seat 8 and the movable portion 7 can be integrally formed, rotatably connected, or fixedly connected. In this embodiment, the connecting seat 8 and the movable portion 7 are rotatably connected, and the connecting seat 8 is located on the side of the movable portion 7 facing the steering pull rod 1.

[0035] By providing the connecting portion 5 with its front end connected to the rear end of the steering pull rod 1, the movable portion 7 is disposed between the steering pull rod 1 and the fixing portion 6, and the connecting seat 8 for connecting one end of the brake lever wire 9 is disposed on the side of the movable portion 7 facing the steering pull rod 1, so that the brake lever wire 9 with one end passing through the steering pull rod 1 can be directly connected to the connecting seat 8, and further the pulling direction of the brake lever wire 9 is consistent with the direction of the steering pull rod 1, providing a necessary condition for the brake lever wire 9 to be hidden in the steering pull rod 1. Since the connecting seat 8 and the movable portion 7 are rotatably connected in this embodiment, when the movable portion 7 rotates about the first axis, the connecting seat 8 rotates relative to the movable portion 7 at the same time, so that the pulling direction of the brake lever wire 9 is always consistent with the direction of the steering pull rod 1.

[0036] The connecting portion 5 is arranged in the front-rear direction and the middle part thereof is higher than its front end. The fixing portion 6 is fixedly connected to the rear end of the connecting portion 5 through its upper end or middle part, and the movable portion 7 is rotatably connected to the middle part of the connecting portion 5 through its upper end or middle part.

[0037] In this embodiment, the fixing portion 6 is fixedly connected to the rear end of the connecting portion 5 through its upper end, the movable portion 7 is rotatably connected to the middle part of the connecting portion 5 through its upper end, the connecting seat 8 is arranged in the middle of the movable portion 7, the first axis is higher than the axis of the pull rod, and the connecting seat is below the first axis, so that interference between the brake lever wire 9 extending out of the steering pull rod 1 and the connecting portion 5 can be avoided. The middle part of the connecting portion 5 arches upward, thus increasing the space for operating the movable portion 7 and making it easier and more convenient for people to ride.

[0038] In this embodiment, the middle part of the connecting portion 5 is higher than its rear end; in other embodiments of this embodiment, the middle part of the connecting portion 5 is at the same height as its rear end.

[0039] In this embodiment, the movable portion 7 and the fixing portion 6 are arranged at intervals along the length extension direction of the steering pull rod 1, and the axis of the steering pull rod 1 passes through the movable portion 7 and the fixing portion 6 in sequence. At the same time, the axis of the steering pull rod 1 also passes through the connecting seat 8.

[0040] In this embodiment, the movable part 7 and the fixed part 6 are respectively arranged in the up-down direction. When braking the bicycle is required, the user controls the movable part 7 to rotate towards the fixed part 6 around the first axis line, and at this time, the included angle between the movable part 7 and the steering pull tube 1 gradually increases.

[0041] In this embodiment, the front end of the connecting part 5 is placed above the rear end of the steering pull tube 1, and the brake lever further includes a connecting piece 11 for connecting the connecting part 5 and the steering pull tube 1.

[0042] The above-mentioned brake lever further includes an elastic member 10 arranged between the movable part 7 and the connecting part 5, and the elastic member 10 is used to provide an elastic restoring force for driving the movable part 7 to rotate and reset.

[0043] See Figure 2 As shown, in this embodiment, the brake lever further includes a pin shaft 12 passing through the connecting part 5 and the movable part 7, and the axis line of the pin shaft 12 is the first axis line. The elastic member 10 is a torsion spring sleeved on the pin shaft 12, and the two ends of the torsion spring respectively abut against the connecting part 5 and the movable part 7. When braking the bicycle is required, the user controls the movable part 7 to rotate towards the fixed part 6 around the first axis line, and at this time, the torsion spring stores a certain amount of elastic potential energy. After braking is completed, the user releases the movable part 7, and the movable part 7 rotates and resets towards the steering pull tube 1 under the action of the torsion spring.

[0044] See Figure 3-4 As shown, Embodiment 2 provides a brake lever for a recumbent bicycle. The main difference between Embodiment 2 and Embodiment 1 is as follows:

[0045] The brake lever uses a hydraulic oil brake, the brake fluid is hydraulic oil, the connecting seat 8 is connected to the brake cylinder piston 13 of the brake lever or the connecting seat 8 is connected to the brake cylinder piston 13 of the brake lever through a connecting rod, the oil cylinder is fixedly connected or integrally formed with the steering pull tube 1, the brake lever oil pipe 14 is passed through the steering pull tube 1 or is hermetically connected to the steering pull tube 1, and the brake lever oil pipe 14 is connected to the wheel brake;

[0046] The connecting part 5 is arranged in the front-rear direction and the middle part thereof is lower than its front end part. The movable part 7 is rotationally connected to the middle part of the connecting part 5 through its middle part. The connecting seat 8 is arranged at the upper end part of the movable part 7. The first axis line is lower than the axis line of the steering pull tube 1, and the connecting seat 8 is located above the first axis line, so that interference between the brake cylinder piston 13 extending out of the steering pull tube 1 and the connecting part 5 can be avoided;

[0047] In this embodiment, the middle part of the connecting part 5 is lower than its rear end part; in other embodiments of this embodiment, the middle part of the connecting part 5 is at the same height as its rear end part to form an L-shaped part;

[0048] The front end of the connecting portion 5 is placed below the rear end of the steering pull rod 1, and the axis line of the steering pull rod 1 passes through the connecting seat 8, so that the moving direction of the brake handle oil cylinder piston 13 is the same as that of the steering pull rod 1;

[0049] The elastic member 10 is a compression spring disposed in the steering pull rod 1. One end of the compression spring abuts against the steering pull rod 1, and the other end abuts against the brake handle oil cylinder piston 13. When braking, the movable portion 7 is pulled to rotate around the first axis line toward the fixed portion 6. The movable portion 7 drives the connecting seat 8 to drive the brake handle oil cylinder piston 13 to move forward. At this time, the compression spring is compressed. When the movable portion 7 is released, the compression spring rebounds to drive the brake handle oil cylinder piston 13 to move backward, and the movable portion 7 rotates and resets around the first axis line under the action of the compression spring.

[0050] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It is not intended to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A brake lever is connected to the rear end of a steering pull rod. The steering pull rod is connected to a steering cross bar through its front end. The steering cross bar is arranged at the front part of a bicycle body and is used for connecting a front wheel. It is characterized in that: The brake lever includes a connecting portion with its front end connected to the rear end of the steering pull rod, a fixing portion with one end connected to the connecting portion, and a movable portion with one end rotatably connected to the connecting portion about a first axis. The movable portion is disposed between the steering pull rod and the fixing portion; The brake lever further includes a connecting seat disposed on the movable portion, and a brake lever wire or a brake cylinder piston of the brake lever with one end movably connected to the connecting seat. The brake lever wire or the brake fluid of the brake lever is disposed in the steering pull rod; The brake lever further includes an elastic member for providing an elastic restoring force to drive the movable portion to rotate and return to its original position.

2. The brake lever according to claim 1, characterized in that: The connecting portion is arranged in the front-rear direction and its middle part is higher than its front end. The fixing portion is fixedly connected to the rear end of the connecting portion through its upper end or middle part. The movable portion is rotatably connected to the middle part of the connecting portion through its upper end or middle part. The first axis is higher than the axis of the steering pull rod, and the connecting seat is located below the first axis.

3. The brake lever according to claim 2, characterized in that: The elastic member is a torsion spring disposed between the movable portion and the connecting portion.

4. The brake lever according to claim 1, characterized in that: The connecting portion is arranged in the front-rear direction and its middle part is lower than its front end. The fixing portion is fixedly connected to the rear end of the connecting portion through its upper end or middle part. The movable portion is rotatably connected to the middle part of the connecting portion through its upper end or middle part. The first axis is lower than the axis of the steering pull rod, and the connecting seat is located above the first axis.

5. The brake lever according to claim 4, wherein: The elastic member is a compression spring disposed between the steering pull rod and the brake cylinder piston of the brake lever.

6. The brake lever according to claim 2 or 4, characterized in that: The movable portion and the fixing portion are arranged at intervals along the length extension direction of the steering pull rod.

7. The brake lever according to claim 1, wherein: The brake lever further includes a connecting member for connecting the connecting portion and the steering pull rod.

8. The brake handle according to claim 1, characterized in that: The brake lever further includes a pin shaft passing through the connecting portion and the movable portion. The axis of the pin shaft is the first axis. The axis of the pin shaft is arranged in the left-right direction and is perpendicular to the steering pull rod.

9. The brake lever according to claim 1, wherein: The connecting seat is integrally formed with the movable portion or is rotatably connected or fixedly connected.

10. The brake lever according to claim 1, characterized in that: There are a pair of brake levers, which are respectively connected to a pair of steering pull rods arranged in the left-right direction.

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