Ratchet wheel type parking mechanism and brake handle

Abstract

The utility model relates to a ratchet wheel type parking mechanism and a brake handle. The ratchet wheel type parking mechanism comprises a base and a brake handle rotationally assembled on the base through a rotating pin, the base is provided with a parking piece used for locking the braking position of the brake handle, and the parking piece comprises a ratchet part integrally formed at the lower end, close to the rotating pin, of the brake handle; a first rotating shaft is arranged in the middle of the parking pin block in a penetrating mode, the parking pin block is divided into a first parking section and a second parking section by the first rotating shaft, the first rotating shaft is assembled on the base, and a buckle tooth part is arranged at the free end of the first parking section; the second rotating shaft is rotationally assembled on the base, and a pin groove part is formed in the annular side wall of the middle of the second rotating shaft; one end of the first elastic piece sleeves the first rotating shaft, and the other end of the first elastic piece is connected to the parking pin block; the parking shifting rod is fixedly assembled at one end of the second rotating shaft and attached to the outer wall face of the base. The parking device can adapt to the force needed by parking of the brake handle under the current topographic condition or position, parking separation is not prone to occurring, and rapid parking is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle brakes, in particular to a ratchet parking mechanism and a brake handle. Background Art

[0002] Two-wheeled bicycles are generally parked with a diagonal brace, which involves installing a flip-up diagonal brace bracket on one side of the rear half of the frame. However, since the length of the diagonal brace is fixed, it is unstable when parked with a diagonal brace on a terrain with a large slope, and the vehicle is prone to falling and causing injuries.

[0003] Currently, there are ratchet-type parking mechanisms on the market that lock the tires by squeezing the brake lever. However, these mechanisms typically only offer a single-stage locking force, making them incapable of adapting to the braking forces required on slopes of varying inclinations. This can lead to unstable parking on steeply sloped terrain. To address this issue, we propose a ratchet-type parking mechanism and brake lever. Utility Model Content

[0004] The present application provides a ratchet parking mechanism and a brake handle to at least solve the problem in the prior art that the ratchet parking mechanism only has a locking function of a single fixed force, cannot adapt to the braking force required by slopes of different slopes, has large parking force deviation, and is unstable.

[0005] In a first aspect, the present application provides a ratchet parking mechanism, comprising a base and a brake handle rotatably mounted on the base via a rotating pin, wherein the base is provided with a parking member for locking the brake handle in a braking position, the parking member comprising:

[0006] a ratchet portion integrally formed at the lower end portion of the brake handle near the rotating pin;

[0007] A parking pin block, wherein a first rotating shaft is passed through the middle thereof and is divided into a first parking section and a second parking section by the first rotating shaft, the first rotating shaft being assembled on the base, and the free end of the first parking section having a snapping tooth portion that engages with the ratchet portion to position the brake handle to prevent reverse rotation;

[0008] A second rotating shaft is rotatably mounted on the base, and a pin groove portion is formed on the annular side wall in the middle thereof for at least partially accommodating the second parking section;

[0009] a first elastic member, one end of which is sleeved on the first rotating shaft and the other end of which is connected to the parking pin block, so that the second parking section elastically abuts against the annular side wall of the second rotating shaft;

[0010] The parking lever is fixedly assembled on one end of the second rotating shaft and is in contact with the outer wall surface of the base.

[0011] Optionally, the parking pin block is L-shaped, and the first rotating shaft is assembled at a corner of the parking pin block.

[0012] Optionally, one side of the second parking section has a smooth surface that fits with the bottom wall of the pin groove portion.

[0013] Optionally, a second elastic member is sleeved on the second rotating shaft, and two ends of the second elastic member are respectively connected to the second rotating shaft and the base.

[0014] Optionally, at least one parking lever ball is movably embedded on a side of the parking lever facing the base, and the parking lever ball is rollingly connected to the outer wall surface of the base.

[0015] Optionally, a parking position prompting groove is provided on the base, and the parking position prompting groove is located at the end travel point of the rotation of the lever ball to produce a sense of frustration on the parking lever, prompting that the parking stroke is in place.

[0016] Optionally, a tie lock is integrally formed on the lower portion of the base, and the tie lock is detachably fixed to the handlebar of the bicycle by cooperating with a fastening bolt.

[0017] In a second aspect, the present application provides a brake handle comprising the ratchet parking mechanism described in the first aspect above.

[0018] Compared with related technologies, the ratchet parking mechanism and brake handle provided by this application have at least the following technical effects:

[0019] Through the cooperation of the ratchet part, the parking pin block and the parking lever, when parking is required, the parking lever can be adjusted to the parking position. When the rider squeezes the brake handle to brake the front / rear wheel of the bicycle, the brake handle rotates along the rotating pin, and the ratchet part rotates to gradually engage the tooth part of the parking pin block. The ratchet-type parking can stably prevent the brake handle from resetting and will not be easily disengaged. Continue to squeeze the brake handle and rotate it counterclockwise until the ratchet part rotates to the position that can provide the required parking force, and then the brake handle can be adapted to the parking force required under the current terrain conditions or position, quickly adaptively parking, and effectively optimizing the parking effect of the bicycle under different conditions.

[0020] The details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a front view of a brake handle structure with a ratchet parking mechanism according to an exemplary embodiment.

[0023] Figure 2 It is a three-dimensional structural diagram of a brake handle with a ratchet parking mechanism according to an exemplary embodiment.

[0024] Figure 3 It is a schematic structural diagram of a ratchet parking mechanism according to an exemplary embodiment.

[0025] Figure 4 1 is an exploded view of a ratchet parking mechanism structure according to an exemplary embodiment.

[0026] Figure 5 FIG1 is a schematic diagram showing a non-parking state of a ratchet parking mechanism according to an exemplary embodiment.

[0027] Figure 6 FIG1 is a schematic diagram showing a parking state of a ratchet parking mechanism according to an exemplary embodiment.

[0028] Description of reference numerals:

[0029] Brake handle 10; rotating pin 20, base 30; tie lock 301; parking member 40; in-position prompt slot 50;

[0030] The parking member 40 includes a ratchet portion 401 , a parking pin block 402 , a locking tooth portion 4021 , a smooth surface 4022 , a first rotating shaft 403 , a first elastic member 404 , a second rotating shaft 405 , a pin groove portion 4051 , a parking lever 406 , a lever ball 4061 , and a second elastic member 407 . DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] In the related technology, there is currently a ratchet parking mechanism on the market that locks the position after the brake handle is squeezed to lock the tire. However, since it generally only has a locking function with a single fixed force, it cannot adapt to the braking force required for slopes of different slopes, which leads to unstable parking on the aforementioned terrain with a large slope.

[0035] Based on the above situation, an embodiment of the present invention provides a ratchet parking mechanism and a brake handle, which are described in detail below with reference to specific embodiments and drawings.

[0036] Example 1

[0037] An embodiment of the utility model provides a ratchet parking mechanism. Figure 1 It is a front view of a brake handle structure with a ratchet parking mechanism according to an exemplary embodiment. Figure 2 FIG is a three-dimensional structural diagram of a brake handle with a ratchet parking mechanism according to an exemplary embodiment. Figure 1-2 As shown, the brake handle is a hydraulic brake handle, and the ratchet parking mechanism includes a base 30 and a brake handle 10 rotatably assembled on the base 30 by a rotating pin 20, and the base 30 is provided with a parking part 40 for locking the brake handle 10 in the braking position; the base 30 is the upper pump body of the oil brake. Furthermore, when the brake handle is a cable brake handle, the base 30 corresponds to the brake handle seat. It can be understood that the ratchet parking mechanism proposed in this application is not limited to the specific type of disc brake, and can be adapted to hydraulic brake handles and cable brake handles, and the brake handle 10 can cooperate with the oil pressure or cable to automatically reset elastically without restriction.

[0038] Figure 3 It is a schematic structural diagram of a ratchet parking mechanism according to an exemplary embodiment. Figure 4 FIG is an exploded view of a ratchet parking mechanism structure according to an exemplary embodiment. Figure 3-4 , the parking part 40 includes:

[0039] The ratchet portion 401 is integrally formed at the lower end of the brake handle 10 near the rotating pin 20. The ratchet portion 401 has a plurality of ratchet teeth distributed in a fan shape with the rotating pin 20 as the center.

[0040] The parking pin block 402 has a first rotating shaft 403 passing through its middle and is divided into a first parking section and a second parking section by the first rotating shaft 403. The first rotating shaft 403 is assembled on the base 30. The free end of the first parking section has a snap tooth portion 4021 that cooperates with the ratchet portion 401 to engage and position the brake handle 10 to prevent reverse movement. Figure 3-4 In a normal state, the locking tooth portion 4021 is located inside the base 30 and is located at the next trend position of the ratchet portion 401 on the brake handle along the rotation direction of the rotating pin 20;

[0041] The second rotating shaft 405 is rotatably mounted on the base 30 and has a pin slot 4051 defined in its central annular sidewall for at least partially accommodating the second parking section. In this embodiment, one side of the second parking section has a smooth surface 4022 that mates with the bottom wall of the pin slot 4051.

[0042] A first elastic member 404, one end of which is sleeved on the first rotating shaft 403 and the other end of which is connected to the parking pin block 402, so that the second parking section elastically abuts against the annular side wall of the second rotating shaft 405;

[0043] The parking lever 406 is fixedly assembled on one end of the second rotating shaft 405 and is in contact with the outer wall of the base 30 .

[0044] In the technical solution of the above embodiment, Figure 5 FIG1 is a schematic diagram showing a non-parking state of a ratchet parking mechanism according to an exemplary embodiment. Figure 6 FIG. 1 is a schematic diagram showing a parking state of a ratchet parking mechanism according to an exemplary embodiment. Figure 5 In the non-parking state, the parking lever 406 is located at the starting point of the rotation stroke, and the annular side wall corresponding to the non-pin groove portion 4051 of the second rotating shaft 405 abuts against the second parking section of the parking pin block 402, so that the locking tooth portion 4021 of the parking pin block 402 does not contact the ratchet portion 401 at the lower part of the brake handle 10; when parking is required, refer to the attached Figure 4 and 6, the parking lever 406 is moved clockwise to the end point of the rotation stroke, and the second rotating shaft 405 rotates clockwise to the pin groove portion 4051. At this time, the parking pin block 402 abuts against the pin groove portion 4051 under the elastic force of the first elastic member 404, and the parking pin block 402 flips counterclockwise to the parking state; when the rider squeezes the brake handle 30 to brake the front / rear wheel of the bicycle, the brake handle 10 rotates along the rotating pin 20. At this time, the ratchet portion 401 rotates counterclockwise to gradually engage with the tooth portion 4021 of the parking pin block 402, and the ratchet portion The ratchet teeth of 401 are engaged with the snap teeth portion 4021. The engagement between the ratchet teeth and the snap teeth portion 4021 can achieve a stable anti-return effect and will not be easily disengaged. The brake lever 10 is continuously squeezed and rotated counterclockwise until the ratchet teeth portion 401 reaches a position where the required parking force is provided. The ratchet teeth of the ratchet teeth portion 401 at this position are engaged with the snap teeth portion 4021, thereby adapting the brake lever 10 to the parking force required under the current terrain conditions or position, achieving rapid adaptive parking and effectively optimizing the parking effect of the bicycle under different conditions.

[0045] It is understandable that, with reference to the Figure 5-6 When the parking position needs to be released, the parking lever 406 is turned counterclockwise, and the parking lever 406 drives the second rotating shaft 405 to rotate counterclockwise to the non-pin groove portion 4051 position, and the parking pin block 402 rotates clockwise along the first rotating shaft 403, and the locking tooth portion 4021 disengages from the ratchet portion 401. The brake handle 10 cooperates with oil pressure or cable to automatically reset elastically without restriction, and the bicycle can be ridden freely.

[0046] Optionally, continue to refer to the attached Figure 3-4 The parking pin block 402 is L-shaped, and the first rotating shaft 403 is assembled at the corner of the parking pin block 402; the second elastic member 407 is sleeved on the second rotating shaft 405, and the two ends of the second elastic member 407 are respectively connected to the second rotating shaft 405 and the base 30. After contact parking, the second elastic member 407 provides an elastic reset force to the parking lever 406. In this embodiment, the first elastic member 404 is a torsion spring and the second elastic member is a compression spring.

[0047] In this embodiment, continue to refer to the attached Figure 1-6 At least one lever ball 4061 is movably embedded on the side of the parking lever 406 facing the base 30. The lever ball 4061 is in rolling connection with the outer wall of the base 30, thereby improving the support of the parking lever 406 and improving the smooth feel of the manual lever. A position prompt groove 50 is provided on the base 30. The position prompt groove 50 is located at the end travel point of the rotation of the lever ball 4061 to produce a pressing and frustrating feeling on the parking lever 406, indicating that the parking travel is in place.

[0048] In the technical solution of the above embodiment, when the parking lever 406 is moved to the end of the rotation stroke point, that is, the position of the parking position prompting slot 50, the lever ball 4061 rolls into the parking position prompting slot 50 and cooperates with the elastic force of the second elastic member 407 to produce an obvious pressing and stopping feeling, prompting the rider that the vehicle has been parked.

[0049] In summary, the ratchet parking mechanism provided by the embodiment of the present invention cooperates with the ratchet portion 401, the parking pin block 402 and the parking lever 406. When parking is required, the parking lever 406 can be adjusted to the parking position. When the rider squeezes the brake lever 30 to brake the front / rear wheels of the bicycle, the brake lever 10 rotates along the rotating pin 20, and the ratchet portion 401 rotates to gradually engage the tooth portion 4021 of the parking pin block 402. The ratchet parking can stably prevent the brake lever 10 from being reset and will not easily disengage. Continue to squeeze the brake lever 10 and rotate it counterclockwise until the ratchet portion 401 rotates to the position where the parking force is required, and then the brake lever 10 can be adapted to the parking force required under the current terrain conditions or position, and the parking is quickly adaptive, effectively optimizing the parking effect of the bicycle under different conditions.

[0050] Example 2

[0051] This embodiment 2 provides a brake handle. Figure 1-2 , including the ratchet parking mechanism of the first aspect mentioned above.

[0052] Optionally, a tie lock is integrally formed on the lower portion of the base 30, and the tie lock is detachably fixed to the handlebar of the bicycle by cooperating with a fastening bolt.

[0053] For other structures not described, refer to Example 1.

[0054] In summary, the ratchet parking mechanism and brake handle provided by the embodiment of the present invention, through the cooperation of the ratchet part 401, the parking pin block 402 and the parking lever 406, can adjust the parking lever 406 to the parking position when parking is required. When the rider squeezes the brake handle 30 to brake the front / rear wheels of the bicycle, the brake handle 10 rotates along the rotating pin 20, and the ratchet part 401 rotates to gradually engage the tooth part 4021 of the parking pin block 402. The ratchet parking can stably prevent the brake handle 10 from being reset and will not be easily disengaged. Continue to squeeze the brake handle 10 counterclockwise until the ratchet part 401 rotates to the position where the parking force is required, and then the parking force required for the brake handle 10 under the current terrain conditions or position can be adapted, and parking can be quickly and adaptively achieved, effectively optimizing the parking effect of the bicycle under different conditions.

[0055] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A ratchet parking mechanism comprising a base and a brake handle rotatably mounted on the base via a rotating pin, characterized in that: The base is provided with a parking member for locking the braking position of the brake handle, and the parking member includes: a ratchet portion integrally formed at the lower end portion of the brake handle near the rotating pin; A parking pin block, wherein a first rotating shaft is passed through the middle thereof and is divided into a first parking section and a second parking section by the first rotating shaft, the first rotating shaft being assembled on the base, and the free end of the first parking section having a snapping tooth portion that engages with the ratchet portion to position the brake handle to prevent reverse rotation; A second rotating shaft is rotatably mounted on the base, and a pin groove portion is formed on the annular side wall in the middle thereof for at least partially accommodating the second parking section; a first elastic member, one end of which is sleeved on the first rotating shaft and the other end of which is connected to the parking pin block, so that the second parking section elastically abuts against the annular side wall of the second rotating shaft; The parking lever is fixedly assembled on one end of the second rotating shaft and is located outside the base.

2. The ratchet parking mechanism according to claim 1, wherein: The parking pin block is L-shaped, and the first rotating shaft is assembled at a corner of the parking pin block.

3. The ratchet parking mechanism according to claim 1, wherein: One side of the second parking section has a smooth surface that fits with the bottom wall of the pin groove portion.

4. The ratchet parking mechanism according to claim 1, wherein: A second elastic member is sleeved on the second rotating shaft, and two ends of the second elastic member are respectively connected to the second rotating shaft and the base.

5. The ratchet parking mechanism according to claim 1, wherein: At least one lever ball is movably embedded on a side of the parking lever facing the base, and the lever ball is in rolling connection with the outer wall surface of the base.

6. The ratchet parking mechanism according to claim 5, wherein: The base is provided with an in-position prompting groove, which is located at the end travel point of the rotation of the lever ball to produce a sense of frustration on the parking lever, prompting that the parking stroke is in place.

7. The ratchet parking mechanism according to claim 1, wherein: A tie lock is integrally formed on the lower part of the base, and the tie lock is detachably fixed to the handlebar of the bicycle in cooperation with a fastening bolt.

8. A brake handle, characterized in that: It includes the ratchet parking mechanism described in any one of claims 1 to 7.

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