Quick release stem for bicycle

Abstract

This utility model relates to the field of bicycle quick-release technology and discloses a bicycle quick-release lever, comprising: a shaft mounted on the locking ring end side; a washer sleeved on the outer ring of the shaft; a dust cover snapped onto the locking ring end side; an installation ring installed inside the locking ring; a handle rotatably mounted on the outer ring of the installation ring; the mounting ring end side having an arc-shaped surface; an adjustment component provided on the outer ring of the installation ring; the adjustment component includes a rotating rod fixed to the side walls of both sides of the installation ring; a square block rotatably sleeved on the outer ring of the rotating rod; the square block being fixedly connected to the handle; and multiple arc-shaped grooves formed inside the handle. This quick-release lever allows for adjustment of the handle angle to find the most suitable operating posture when facing different bicycle component installation positions and operating spaces. It can easily handle both conventional and complex disassembly positions with obstructions, improving the applicability and practicality of the quick-release lever in various usage scenarios.

Description

Technical Field

[0001] This utility model relates to the field of bicycle quick-release technology, specifically a bicycle quick-release lever. Background Technology

[0002] A quick-release lever is an internal cam that allows bicycle wheels to be easily secured and removed. Almost all sports bicycles are equipped with this type of detachable wheel retainer. When installing a quick-release lever, the adjusting nut is turned clockwise to move it inward and clamp the wheel to the frame, firmly holding the wheel in the correct position. To remove it, the quick-release lever is removed by turning the handle.

[0003] Currently, the handlebar angle of traditional bicycle quick-release levers is mostly fixed, which cannot be flexibly adjusted according to the installation position and operating space of different bicycle parts. It may be able to handle disassembly operations in normal positions, but when encountering complex positions with obstructions, the fixed-angle handlebar is easily blocked by other bicycle parts, making it difficult for the operator to find a suitable force application posture and to complete the rotation disassembly smoothly. This limits the applicability and practicality of quick-release levers in diverse usage scenarios and causes great inconvenience to the disassembly of bicycle parts in different positions.

[0004] Therefore, we proposed a bicycle quick-release lever to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a bicycle quick-release lever to solve the problem mentioned in the background art that the handle angle of traditional bicycle quick-release levers is mostly fixed and cannot be flexibly adjusted according to the installation position and operating space of different bicycle parts.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bicycle quick-release lever, including a locking ring, an axle mounted on the end side of the locking ring, a washer sleeved on the outer ring of the axle, and a dust cover snapped onto the end side of the locking ring;

[0007] An installation ring is installed inside the locking ring. A handle is rotatably installed on the outer ring of the installation ring. The end side of the installation ring is set with an arc-shaped surface. An adjustment component is provided on the outer ring of the installation ring. The adjustment component includes a rotating rod fixed to the side walls on both sides of the installation ring. A square block is rotatably sleeved on the outer ring of the rotating rod. The square block is fixedly connected to the handle. Multiple arc-shaped grooves are opened inside the handle.

[0008] Preferably, the inner wall of the locking ring is provided with a threaded groove, the outer ring of the mounting ring is provided with an external thread, the mounting ring and the locking ring are threadedly installed, and the external thread is adapted to the threaded groove.

[0009] Preferably, a centering groove is provided inside the locking ring, and a centering rod is fixed to the end side of the mounting ring, the centering rod being engaged with the centering groove.

[0010] Preferably, a ring is fixedly sleeved on the outer ring of the rotating rod, a slide rod is slidably connected inside the rotating rod, a fixing plate is fixed to the end of the slide rod, and a pull ring is fixed to the end of the fixing plate.

[0011] Preferably, a spring is fitted around the outer ring of the slide rod, one end of the spring is fixedly connected to the ring, and the other end of the spring is fixedly connected to the fixing plate.

[0012] Preferably, the square block has a square slot on its surface, and a square strip is fixed to the inner wall of the fixing plate, the square strip engaging with the square slot.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This quick-release lever can find the most suitable operating posture by adjusting the handlebar angle when facing different bicycle parts installation positions and operating spaces. Whether it is disassembly in a normal position or disassembly in a complex position with obstructions, it can easily handle the situation, improving the applicability and practicality of the quick-release lever in various usage scenarios.

[0015] 2. This quick-release lever can be released by pulling the pull ring. After flexibly adjusting the handle angle around the lever, releasing the pull ring will complete the fixation. The entire adjustment process is simple and efficient, avoiding the problem of slow disassembly caused by unsuitable angles, and improving the work efficiency of disassembling bicycle parts.

[0016] 3. The outer ring of the handle of this quick-release lever features an arc design and added anti-slip texture. The anti-slip texture increases the friction between the hand and the handle, ensuring a stable grip even when the hands are sweaty or dirty, preventing slippage and operational errors. In addition, the multiple arc grooves inside the handle conform to the operator's fingers, distributing the pressure during gripping, reducing hand fatigue, and allowing the operator to apply rotational force more effortlessly.

[0017] 4. This quick-release lever can firmly fix the handle in the adjusted angle position, ensuring that the handle will not rotate arbitrarily during the operation, reducing safety hazards during operation, and providing stable structural support for quick-release operation.

[0018] 5. The quick-release lever uses a threaded connection between the locking ring and the mounting ring, along with the engagement of the centering rod on the end of the mounting ring with the centering groove inside the locking ring. This not only achieves accurate positioning of the installation position and effectively avoids offset during use, but also significantly improves the firmness of the connection between the two. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the locking ring, shaft, and washer structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 3 ;

[0023] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 4 ;

[0024] Figure 6 This is a schematic diagram of the adjustment component structure of this utility model. Figure 1 ;

[0025] Figure 7 This is a schematic diagram of the adjustment component structure of this utility model. Figure 2 .

[0026] In the diagram: 1. Locking ring; 2. Shaft; 3. Washer; 4. Dust cover; 5. Threaded groove; 6. Centering groove; 7. Mounting ring; 71. External thread; 72. Centering rod; 8. Handle; 9. Adjusting assembly; 91. Square block; 92. Rotating rod; 93. Ring; 94. Slide rod; 95. Fixing plate; 96. Pull ring; 97. Spring; 98. Square retaining strip; 99. Square retaining groove; 10. Arc groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: Please refer to Figure 1 - Figure 2A quick-release lever for bicycles includes a locking ring 1, with an axle 2 mounted on one end of the locking ring 1. The length and diameter of the axle 2 are designed according to the specific model of the bicycle and the usage requirements. A washer 3 is fitted around the outer ring of the axle 2. A dust cover 4 is snapped onto the end of the locking ring 1. The main function of the dust cover 4 is to prevent external dust, mud, rainwater and other impurities from entering the interior of the locking ring 1, avoiding impurities from adhering to the axle 2, the inner wall of the locking ring 1 and other components, preventing wear or corrosion of the components, thereby ensuring the normal operation of the quick-release lever and extending its service life.

[0029] In this embodiment, when the quick-release lever is idle or the bicycle is in normal riding mode, the dust cover 4 continuously provides protection, preventing impurities from adhering to critical parts such as the threaded contact surface between the mounting ring 7 and the locking ring 1, the surface of the shaft 2, and the inner wall of the locking ring 1. This protective mechanism prevents wear or corrosion of components caused by impurities, and in particular, prevents dust from entering the connection structure between the handle 8 and the locking ring 1. This ensures that the rotation adjustment of the mounting ring 7 and the angle adjustment of the handle 8 are not affected by impurities when used again, guaranteeing that the quick-release lever maintains sensitive operation performance for a long time and extending its overall service life. When quick-release operation is required again, simply remove the dust cover 4 from the locking ring 1 end to expose the internal structure and perform normal disassembly and adjustment operations. The operation is convenient and does not affect the use of core functions.

[0030] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 3 - Figure 7 A bicycle quick-release lever includes a locking ring 1, an mounting ring 7 installed inside the locking ring 1, and a handle 8 rotatably mounted on the outer ring of the mounting ring 7. The handle 8, as the component directly gripped by the operator, is designed with the needs of maintenance personnel in mind. Its outer ring features an ergonomic arc design with anti-slip textured surfaces, increasing friction between the hand and the handle 8, allowing for a more stable grip and easier application of force. Simultaneously, multiple arc-shaped grooves 10 are formed within the handle 8. These grooves not only reduce the overall weight of the handle 8 but also provide better finger fit during gripping, further enhancing grip comfort and force application.

[0031] The mounting ring 7 has an arc-shaped end, which matches the inner shape of the handle 8, making the contact between the handle 8 and the mounting ring 7 smoother during rotation, reducing frictional resistance and making the adjustment of the handle 8 smoother. An adjustment assembly 9 is provided on the outer ring of the mounting ring 7. The adjustment assembly 9 includes rotating rods 92 fixed to the side walls of both sides of the mounting ring 7. The rotating rods 92 provide support points for the rotation of the handle 8. A square block 91 is rotatably sleeved on the outer ring of the rotating rod 92. The square block 91 is fixedly connected to the handle 8. Through the rotational cooperation between the square block 91 and the rotating rod 92, the handle 8 can rotate around the rotating rod 92, thereby achieving the purpose of adjusting the direction of the handle 8. Multiple arc-shaped grooves 10 are provided inside the handle 8.

[0032] The inner wall of the locking ring 1 has a threaded groove 5, and the outer ring of the mounting ring 7 has an external thread 71. The mounting ring 7 and the locking ring 1 are threaded together, and the external thread 71 is compatible with the threaded groove 5. The threaded connection ensures the stability of the connection between the mounting ring 7 and the locking ring 1, and also facilitates installation and disassembly. The locking ring 1 has a centering groove 6, and a centering rod 72 is fixed to the end of the mounting ring 7. The centering rod 72 is engaged with the centering groove 6. The cooperation between the centering rod 72 and the centering groove 6 plays a role in positioning and guiding, ensuring that the mounting ring 7 is accurately installed in the locking ring 1 and avoiding displacement during use.

[0033] A ring 93 is fixedly sleeved on the outer ring of the rotating rod 92. A slide rod 94 is slidably connected inside the rotating rod 92. A fixing plate 95 is fixed to the end of the slide rod 94. A pull ring 96 is fixed to the end of the fixing plate 95. A spring 97 is sleeved on the outer ring of the slide rod 94. One end of the spring 97 is fixedly connected to the ring 93, and the other end of the spring 97 is fixedly connected to the fixing plate 95. A square slot 99 is formed on the surface of the square block 91. A square strip 98 is fixed to the inner wall of the fixing plate 95. The square strip 98 engages with the square slot 99. Through the engagement of the square strip 98 and the square slot 99, the handle is fixed after rotation, ensuring the stability of the handle 8 at different angle positions.

[0034] In this embodiment: During the installation stage of the bicycle quick-release lever, the handlebar 8 and related components must first be assembled. The mounting ring 7 is threaded to the screw groove 5 on the inner wall of the locking ring 1 through the external thread 71. During the connection process, the centering rod 72 on the end side of the mounting ring 7 will accurately engage with the centering groove 6 in the locking ring 1. With the positioning and guiding effect of the centering rod 72 and the centering groove 6, the installation position of the mounting ring 7 in the locking ring 1 is ensured to be accurate, avoiding displacement during subsequent use.

[0035] When disassembling a bicycle, the operator grips the handlebar 8. Utilizing the ergonomic curved design of the outer ring and the anti-slip texture of the surface, the operator can firmly hold the handlebar 8 and apply rotational force. By rotating the handlebar 8, the mounting ring 7, locking ring 1, and axle 2 are rotated, enabling quick disassembly of bicycle components. During this process, the multiple curved grooves 10 inside the handlebar 8 fit well with the operator's fingers, improving grip comfort and allowing the operator to apply rotational force more effortlessly, thus increasing disassembly efficiency.

[0036] During disassembly, dead angles are often encountered. If the handlebar 8 is always in a fixed position, it is easily blocked by other parts of the bicycle, which will hinder the rotation and disassembly action and slow down the disassembly process. At this time, the angle of the handlebar 8 can be flexibly adjusted by adjusting the component 9.

[0037] During adjustment, the operator pulls the pull ring 96, which causes the slide bar 94 to slide outward along the rotating rod 92. The slide bar 94 then moves the fixing plate 95 outward. At this time, the spring 97 on the outer ring of the slide bar 94 is stretched. As the fixing plate 95 moves, the square retaining strip 98 on its inner wall disengages from the square retaining groove 99 on the surface of the square block 91, releasing the fixation restriction on the handle. Afterward, the operator can rotate the handle 8 around the rotating rod 92 according to the actual operating space and the need to avoid obstruction. The handle 8 drives the square block 91 to rotate around the rotating rod 92 together until the handle 8 is adjusted to a suitable angle position, ensuring that the operation is not obstructed at this angle and that the rotation and disassembly operations can be performed smoothly.

[0038] After adjusting the handle 8 to the appropriate angle for the current position, the operator releases the pull ring 96. Under the elastic restoring force of the spring 97, the spring 97 pulls the fixing plate 95 inward. The slide rod 94 slides inward along the rotating rod 92 with the fixing plate 95 to reset. At this time, the square locking strip 98 on the inner wall of the fixing plate 95 re-engages into the corresponding square locking groove 99 on the surface of the square block 91. Through the tight engagement between the square locking strip 98 and the square locking groove 99, the handle 8 is firmly fixed in the currently adjusted angle position, ensuring that the handle 8 will not rotate arbitrarily during subsequent rotation and disassembly. After fixing, the operator holds the handle 8 again. With the good fit between the arc groove 10 of the handle 8 and the hand, as well as the assistance of the anti-slip texture, the disassembly operation can be continued stably and effortlessly, effectively solving the problem of blind spot obstruction and improving the convenience of disassembly in different positions.

[0039] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bicycle quick-release lever, comprising a locking ring (1), characterized in that: A shaft (2) is installed on the end side of the locking ring (1), a washer (3) is sleeved on the outer ring of the shaft (2), and a dust cover (4) is snapped on the end side of the locking ring (1). An installation ring (7) is installed inside the locking ring (1). A handle (8) is rotatably installed on the outer ring of the installation ring (7). The end side of the installation ring (7) is set with an arc-shaped surface. An adjustment component (9) is set on the outer ring of the installation ring (7). The adjustment component (9) includes a rotating rod (92) fixed on the side walls of both sides of the installation ring (7). A square block (91) is rotatably sleeved on the outer ring of the rotating rod (92). The square block (91) is fixedly connected to the handle (8). Multiple arc-shaped grooves (10) are opened inside the handle (8).

2. A bicycle quick-release lever according to claim 1, characterized in that: The inner wall of the locking ring (1) is provided with a threaded groove (5), and the outer ring of the mounting ring (7) is provided with an external thread (71). The mounting ring (7) and the locking ring (1) are threaded together, and the external thread (71) is adapted to the threaded groove (5).

3. A bicycle quick-release lever according to claim 1, characterized in that: The locking ring (1) has a centering groove (6) inside, and the mounting ring (7) has a centering rod (72) fixed on its end side. The centering rod (72) is engaged with the centering groove (6).

4. A bicycle quick-release lever according to claim 1, characterized in that: The outer ring of the rotating rod (92) is fixedly sleeved with a ring (93), and a sliding rod (94) is slidably connected inside the rotating rod (92). A fixing plate (95) is fixed to the end of the sliding rod (94), and a pull ring (96) is fixed to the end of the fixing plate (95).

5. A bicycle quick-release lever according to claim 4, characterized in that: The outer ring of the slide rod (94) is fitted with a spring (97), one end of the spring (97) is fixedly connected to the ring (93), and the other end of the spring (97) is fixedly connected to the fixing plate (95).

6. A bicycle quick-release lever according to claim 5, characterized in that: The square block (91) has a square slot (99) on its surface, and a square strip (98) is fixed to the inner wall of the fixing plate (95). The square strip (98) is engaged with the square slot (99).

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