Quick-release barrel of bicycle

Abstract

The utility model discloses a bicycle quick release cylinder which comprises a cylinder body, a clamping mechanism is arranged at the bottom end of the cylinder body, the clamping mechanism comprises a connecting disc, a connecting rod, a mounting sleeve, a limiting frame, a clamping block, a push rod, a pressure plate, a lock sleeve and an air cylinder, the connecting disc is rotatably mounted at the bottom end of the cylinder body, the connecting rod is mounted on the connecting disc, and the limiting frame is mounted on the connecting rod. The mounting sleeve is mounted at the bottom end of the connecting rod, the limiting frame is mounted in the mounting sleeve, the multiple sets of clamping blocks are slidably mounted on the limiting frame, and the air cylinder pushes the lock sleeve to slide along the guide plate to further extrude the outer wall of the pressure plate, so that the pressure plate rotates and drives the push rod to slide through the abutting block; the structure can adapt to bolts of different sizes and shapes, tools do not need to be replaced frequently, the operation convenience is greatly improved, and the application range is greatly widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bicycle, more specifically, it relates to a bicycle quick release cylinder. BACKGROUND

[0002] In the daily bicycle repair and maintenance process, the bolt on the bicycle is often disassembled and installed, because the bolt specifications, size and type of different bicycle parts exist great difference, the traditional disassembly mode usually relies on manual tool, for example spanner, internal hexagonal spanner or sleeve tool, the repair personnel needs to change the tool frequently according to different model bolt, this not only increases the operation complexity, also leads to the reduction of repair efficiency, is difficult to meet the demand of quick disassembly and assembly;

[0003] In addition, the force situation of the bolt is difficult to control in the operation process of the traditional manual disassembly mode, and the bolt is easy to slip, wear or damage due to improper force, especially when encountering rusted bolt or over-tight bolt, the disassembly difficulty is further increased, which not only increases the repair cost, but also may cause additional component damage, affecting the normal use of the bicycle. TECHNICAL CONTENT

[0004] (I) technical problem solved

[0005] In view of the problems existing in the prior art, the utility model provides a bicycle quick release cylinder to solve the technical problem that the traditional disassembly mode usually relies on manual tool mentioned in the background art.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: A bicycle quick release cylinder, including the cylinder, the cylinder bottom is provided with the clamping mechanism, the clamping mechanism includes the connecting disc, connecting rod, installation cover, limiting stand, clamping block, push rod, pressure plate, lock sleeve and pneumatic cylinder, the connecting disc rotation is installed at the cylinder bottom, the connecting rod is installed on the connecting disc, the installation cover is installed at the connecting rod bottom, the limiting stand is installed in the installation cover, the clamping block is provided with multiple groups and is slidingly installed on the limiting stand, the push rod is provided with multiple groups and is slidingly installed on the installation cover outer wall, the pressure plate is provided with multiple groups and is rotationally installed on the installation cover outer wall respectively, the lock sleeve slides on the connecting rod outer wall, the pneumatic cylinder is installed on the connecting disc and the telescopic end is connected with the lock sleeve, the cylinder top is provided with transmission mechanism, the transmission mechanism includes the mounting bracket, micro motor, main gear, driven gear and central shaft, the mounting bracket is installed at the cylinder top, the micro motor is installed on the mounting bracket, the main gear is installed on the micro motor output end, the driven gear is installed on the mounting bracket, and the central shaft both ends are connected with the driven gear and the connecting disc respectively.

[0008] The utility model further sets up, limiting stand branch all sets up as polygon and is connected with multiple the clamping block sliding respectively, and polygon limiting stand branch can provide multiple sliding contact surfaces for clamping block, increase the sliding stability of clamping block in limiting stand, avoid rotating or misplacement of clamping block in the clamping process simultaneously, so as to ensure that clamping block can gather or separate outwardly accurately, further improve the reliability of clamping mechanism.

[0009] The utility model further sets up, and multiple the clamping block inboard all are equipped with antiskid pad, and the setting can significantly increase the friction of clamping block and bolt surface, effectively prevent the skidding phenomenon of clamping block when clamping bolt, and also can reduce the abrasion brought by the direct contact of clamping block and bolt surface, so as to protect bolt surface integrity and enhance the clamping effect of device.

[0010] The utility model further sets up, and multiple the clamping block top surface and installation cover inner wall are connected with reset spring, and the function of reset spring is that after clamping block completes clamping operation, can restore to initial position automatically through the elastic force of clamping block, reduce the complexity of manual adjustment, make device can enter next operation state quickly simultaneously, so as to improve the efficiency and convenience of overall operation.

[0011] The utility model further sets up, a plurality of pressure plate inside and the outer wall between installation sleeve all are connected with compression spring, the design of compression spring can store energy when pressure plate is pressed by external force, and releases the elastic force after external force is removed and makes pressure plate restore to original position, so as to ensure that the movement of pressure plate is more stable and controlled, cooperate the movement of clamping block and push rod simultaneously, further improve the cooperative work efficiency of whole clamping mechanism.

[0012] The utility model further sets up, a plurality of push rod top all are equipped with the resistance block, a plurality of resistance block top all are set as inclined plane and contact with a plurality of pressure plate inside respectively, through the design of inclined plane resistance block, the rotary motion of pressure plate can be converted into the linear sliding motion of push rod, so as to ensure that clamping block can slide accurately along the limiting frame, both improve the transmission efficiency of structure and ensure the stability and reliability of whole clamping process.

[0013] The utility model further sets up, the outer wall of cylinder is equipped with the handle, and the setting of handle is convenient for user handheld device operation, can effectively improve the portability and operation comfort degree of device, and simultaneously through reasonable ergonomics design, user can also keep higher stability in long time operation, further improve the use experience and work efficiency.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model provides a bicycle quick release cylinder, has the following beneficial effects:

[0016] 1, the beneficial effect of clamping mechanism lies in that its design can efficiently and stably realize the automatic clamping and loosening operation of different model bolts, and the inner side of a plurality of clamping blocks is equipped with antiskid pad, can effectively increase the friction force with the bolt surface, avoids skidding, so as to ensure the stability of clamping, in operation, the cylinder is pushed along the guide plate and further extrudes the outer wall of pressure plate, makes pressure plate rotate and drives push rod to slide through resistance block, so as to drive clamping block to gather along the limiting frame, realizes the quick clamping operation of bolt, and this structure can adapt to bolts of different sizes and shapes, need not frequently change tools, greatly improves operation convenience and application range.

[0017] 2、The beneficial effects of the transmission mechanism are embodied in that through ingenious mechanical transmission design, the power of the micro motor can be efficiently transmitted to the clamping mechanism, finally realizing the rapid rotation and disassembly of the bolt, the mounting frame is fixed at the top end of the cylinder body, the main gear at the output end of the micro motor is meshed with the driven gear on the mounting frame, the driven gear is further connected with the connecting disc through the center shaft, and the connecting disc drives the whole clamping mechanism to rotate, so that the bolt can be smoothly rotated after being clamped, through the stability of the gear transmission structure, the device can run stably at high speed, ensuring the efficiency and reliability of the bolt rotation and disassembly, in addition, the miniaturization design of the micro motor makes the whole device more portable, and the structure of the handle makes the user operation more comfortable, and improves the portability and practicality of the equipment.

[0018] 3、Multiple sets of clamping blocks are connected through the limiting frame and can automatically return to the original position under the action of the return spring, improving the flexibility and reusability of the device, the branches of the limiting frame are polygonal and are connected with multiple sets of clamping blocks, the polygonal limiting frame branches can provide multiple sliding contact surfaces for the clamping blocks, increasing the sliding stability of the clamping blocks in the limiting frame, and avoiding rotation or misplacement of the clamping blocks during clamping, so as to ensure that the clamping blocks can be precisely gathered inward or separated outward, further improving the reliability of the clamping mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of a bicycle quick release cylinder in the utility model;

[0020] Figure 2 It is a sectional structure schematic view of a cylinder body in the utility model;

[0021] Figure 3 It is a structure schematic view of a clamping mechanism in the utility model;

[0022] Figure 4 It is a structure schematic view of a clamping block in the utility model;

[0023] Figure 5 It is a structure schematic view of a limiting frame in the utility model.

[0024] In the drawing: 1, cylinder body; 2, connecting disc; 3, connecting rod; 4, mounting sleeve; 5, limiting frame; 6, clamping block; 7, push rod; 8, pressure plate; 9, lock sleeve; 10, air cylinder; 11, mounting frame; 12, micro motor; 13, main gear; 14, driven gear; 15, center shaft; 16, guide plate; 17, non-slip pad; 18, return spring; 19, compression spring; 20, abutting block; 21, handle. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0027] In the present application, unless otherwise specified, the orientation such as "up, down" is generally with respect to the direction shown in the drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the present application.

[0028] Please refer to Figures 1-5 A bicycle quick release cylinder, comprising a cylinder body 1, the bottom end of the cylinder body 1 is provided with a clamping mechanism, the clamping mechanism comprises a connecting disc 2, a connecting rod 3, a mounting sleeve 4, a limiting frame 5, a clamping block 6, a push rod 7, a pressure plate 8, a lock sleeve 9 and a gas cylinder 10, the connecting disc 2 is rotatably installed at the bottom end of the cylinder body 1, the connecting rod 3 is installed on the connecting disc 2, the mounting sleeve 4 is installed at the bottom end of the connecting rod 3, the limiting frame 5 is installed in the mounting sleeve 4, the clamping block 6 is provided with a plurality of groups and is slidably installed on the limiting frame 5, the push rod 7 is provided with a plurality of groups and is slidably installed on the outer wall of the mounting sleeve 4, the pressure plate 8 is provided with a plurality of groups and is rotatably installed on the outer wall of the mounting sleeve 4, the lock sleeve 9 is slidably installed on the outer wall of the connecting rod 3, the gas cylinder 10 is installed on the connecting disc 2 and the telescopic end is connected with the lock sleeve 9, the top end of the cylinder body 1 is provided with a transmission mechanism, the transmission mechanism comprises a mounting frame 11, a micro motor 12, a main gear 13, a driven gear 14 and a central shaft 15, the mounting frame 11 is installed at the top end of the cylinder body 1, the micro motor 12 is installed on the mounting frame 11, the main gear 13 is installed at the output end of the micro motor 12, the driven gear 14 is drivingly installed on the mounting frame 11, and the central shaft 15 is connected with the driven gear 14 and the connecting disc 2 at both ends.

[0029] The outer wall of the connecting rod 3 is provided with a guide plate 16, and the guide plate 16 is provided with a plurality of groups and is slidably connected with the lock sleeve 9.

[0030] The branches of the limiting frame 5 are all polygonal and are slidably connected with the plurality of groups of clamping blocks 6.

[0031] The inner side of each of the plurality of groups of clamping blocks 6 is provided with an anti-skid pad 17.

[0032] A return spring 18 is connected between the top surface of each of the plurality of groups of clamping blocks 6 and the inner wall of the mounting sleeve 4.

[0033] A compression spring 19 is connected between the inner side of each of the plurality of groups of pressure plates 8 and the outer wall of the mounting sleeve 4.

[0034] The top end of each group of push rods 7 is provided with a block 20, and the top end of each group of blocks 20 is provided with a slope and is in contact with the inner side of each group of pressure plates 8.

[0035] The outer wall of the cylinder 1 is provided with a handle 21.

[0036] In this embodiment, when the bolt on the bicycle needs to be disassembled, the handle 21 is used to align the bolt with the center of the plurality of clamping blocks 6, and then the telescopic end of the air cylinder 10 is extended to push the lock sleeve 9 to slide along the plurality of guide plates 16 to abut against the outer wall of the plurality of pressure plates 8, and the plurality of pressure plates 8 are pushed to rotate, the inner wall of the plurality of pressure plates 8 is in contact with the plurality of blocks 20 and pushes the push rod 7 to extrude the compression spring 19, the bottom end of the push rod 7 is in contact with the clamping block 6 and pushes the clamping block 6 to slide along the limiting frame 5, and the reset spring 18 is stretched, the plurality of clamping blocks 6 are gathered inward at the same time, so that the anti-skid pad 17 is in contact with the outer wall of the bolt, then the micro motor 12 is started to drive the main gear 13 to rotate, the main gear 13 is meshed and transmitted to the driven gear 14, the driven gear 14 drives the central shaft 15 to rotate, the central shaft 15 drives the connecting disc 2 to rotate, the connecting disc 2 drives the entire clamping mechanism to rotate, and the bolt is rotated and disassembled by the clamping mechanism.

[0037] In summary, when the bolt on the bicycle needs to be disassembled, the handle 21 is used to align the bolt with the center of the plurality of clamping blocks 6, and then the telescopic end of the air cylinder 10 is extended to push the lock sleeve 9 to slide along the plurality of guide plates 16 to abut against the outer wall of the plurality of pressure plates 8, and the plurality of pressure plates 8 are pushed to rotate, the inner wall of the plurality of pressure plates 8 is in contact with the plurality of blocks 20 and pushes the push rod 7 to extrude the compression spring 19, the bottom end of the push rod 7 is in contact with the clamping block 6 and pushes the clamping block 6 to slide along the limiting frame 5, and the reset spring 18 is stretched, the plurality of clamping blocks 6 are gathered inward at the same time, so that the anti-skid pad 17 is in contact with the outer wall of the bolt, then the micro motor 12 is started to drive the main gear 13 to rotate, the main gear 13 is meshed and transmitted to the driven gear 14, the driven gear 14 drives the central shaft 15 to rotate, the central shaft 15 drives the connecting disc 2 to rotate, the connecting disc 2 drives the entire clamping mechanism to rotate, and the bolt is rotated and disassembled by the clamping mechanism.

[0038] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection method, which will not be described here. In the above, whenever there is a fixed connection, it is preferred to consider welding. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A quick release hub for a bicycle comprising a hub body (1) characterised in that: The bottom end of the barrel (1) is provided with a clamping mechanism, the clamping mechanism comprises a connecting disc (2), a connecting rod (3), a mounting sleeve (4), a limiting frame (5), a clamping block (6), a push rod (7), a pressure plate (8), a lock sleeve (9) and a gas cylinder (10), the connecting disc (2) is rotatably installed at the bottom end of the barrel (1), the connecting rod (3) is installed on the connecting disc (2), the mounting sleeve (4) is installed at the bottom end of the connecting rod (3), the limiting frame (5) is installed in the mounting sleeve (4), the clamping block (6) is provided with a plurality of groups of slidingly installed on the limiting frame (5), the push rod (7) is provided with a plurality of groups of slidingly installed on the outer wall of the mounting sleeve (4), the pressure plate (8) is provided with a plurality of groups of rotatably installed on the outer wall of the mounting sleeve (4), the lock sleeve (9) slides on the outer wall of the connecting rod (3), and the gas cylinder (10) is installed on the connecting disc (2) and is connected with the lock sleeve (9) at the telescopic end. The top end of the barrel (1) is provided with a transmission mechanism, the transmission mechanism comprises a mounting frame (11), a micro motor (12), a main gear (13), a driven gear (14) and a center shaft (15), the mounting frame (11) is installed at the top end of the barrel (1), the micro motor (12) is installed on the mounting frame (11), the main gear (13) is installed at the output end of the micro motor (12), the driven gear (14) is drivingly installed on the mounting frame (11), and the center shaft (15) is connected with the driven gear (14) and the connecting disc (2) at both ends.

2. A bicycle quick release skewer according to claim 1, wherein: The outer wall of the connecting rod (3) is provided with a guide plate (16), and the guide plate (16) is provided with a plurality of groups and is in sliding connection with the lock sleeve (9).

3. A bicycle quick release skewer as defined in claim 2, wherein: The branches of the limiting frame (5) are all polygonal and are in sliding connection with a plurality of groups of the clamping blocks (6).

4. A bicycle quick release skewer as defined in claim 3, wherein: A plurality of groups of the clamping blocks (6) are all provided with anti-skid pads (17) on the inner sides.

5. A bicycle quick-release sleeve according to claim 4, characterized in that: multiple sets The top surfaces of the clamping blocks (6) and the inner walls of the mounting sleeves (4) are both connected with return springs (18).

6. A bicycle quick release skewer as defined in claim 5, wherein: The inner sides of a plurality of groups of the pressure plates (8) and the outer wall of the mounting sleeve (4) are both connected with compression springs (19).

7. A bicycle quick release skewer according to claim 6 wherein the plurality of sets of teeth are arranged in a plurality of groups. The top ends of the push rods (7) are all provided with abutting blocks (20), and the top ends of a plurality of groups of the abutting blocks (20) are all inclined surfaces and are in contact with the inner sides of a plurality of groups of the pressure plates (8).

8. A bicycle quick release skewer according to claim 7, wherein: The outer wall of the barrel (1) is provided with a handle (21).

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