Combined crankset cover of bicycle

Abstract

The utility model relates to the technical field of bicycles, and discloses a bicycle combined crankset cover which comprises a whole cover, and the whole cover comprises a front upper cover, a rear cover and a side edge circular crankset cover. A first accessory is fixedly connected to the rear surface of the front upper cover, a fifth long-strip-shaped hole is formed in the front surface of the first accessory, the front upper cover is fixedly connected with the fifth long-strip-shaped hole through a screw, and a bicycle frame vertical pipe is connected to the inner side wall of the first accessory in a clamped mode. A third accessory is fixedly connected to the rear surface of the rear cover, the rear cover is connected with the third accessory through a height adjusting screw, a bicycle frame rear lower fork is arranged on the rear surface of the third accessory, a metal sheet is arranged on the outer side wall of the bicycle frame rear lower fork, a second long-strip-shaped hole is formed in the front surface of the rear cover, and the metal sheet is arranged in the second long-strip-shaped hole. A fourth long-strip-shaped hole is formed in the front surface of the side edge round chain wheel cover, and a chain wheel is fixedly connected to the rear surface of the side edge round chain wheel cover.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a combined toothed disc cover for bicycles. Background Art

[0002] Bicycles have become an important means of transportation and sports for people. Since the early non-speed bicycles were more laborious to pedal, today's speed bicycles have become the mainstream. However, the chain guards used in early bicycles are difficult to install and use on speed bicycles. Therefore, the chain plates and chains of many speed bicycles are exposed, and the oil stains on them can easily rub on the pants, and sometimes they will get caught in the pants. The small number of combined covers currently sold on the market have not been widely used due to their complex installation, low universal adjustability or insufficient protection. Because there are many specifications of bicycle frames and chain plates, it is difficult to use a fixed chain guard to meet most models. In addition, since the hole spacing specifications of the side circular chain plate cover installed on the chain plate are numerous, it is necessary to first perform complex and accurate measurement of the distance of the mounting holes on the chain plate before selecting the corresponding model from the many products with different hole spacing specifications, which is extremely inconvenient when selecting. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a bicycle combined chainring cover, which can make the installation easier and the protected position more comprehensive.

[0004] To solve the above technical problems, according to one aspect of the utility model, more specifically, a combined bicycle crankcase cover includes a whole cover, the whole cover includes a front upper cover, a rear cover and a side circular crankcase cover, the rear surface of the front upper cover is fixedly connected to an accessory one, the front surface of the accessory one is provided with a long strip hole five, the front upper cover is fixedly connected to the long strip hole five by screws, and the inner side wall of the accessory one is snap-fitted and connected to a bicycle frame standpipe.

[0005] Furthermore, a mounting accessory three is fixedly connected to the rear surface of the front upper cover, a long strip hole five is provided on the front surface of the mounting accessory three, the front upper cover and the long strip hole five are fixedly connected by screws, a mounting platform is fixedly connected to the rear surface of the mounting accessory two, the mounting platform and the bicycle rack standpipe are fixedly connected by a clamp, a long strip hole one is provided on the front surface of the mounting platform, and the mounting accessory two and the long strip hole one are fixedly connected by screws.

[0006] Furthermore, an accessory three is fixedly connected to the rear surface of the rear cover, and the rear cover and the accessory three are connected by a height adjustment screw. The rear surface of the accessory three is provided with a frame chain fork, and the outer side wall of the frame chain fork is provided with a metal sheet, and the metal sheet and the accessory three are fixedly installed on the outer side wall of the frame chain fork by screws, and an elongated hole three is opened on the front surface of the accessory three, and an elongated hole two is opened on the front surface of the rear cover.

[0007] Furthermore, the side circular chainring cover is provided with a long strip hole four on the front surface, the rear surface of the side circular chainring cover is fixedly connected with a chainring, and the side circular chainring cover is fixedly connected to the chainring by screws.

[0008] Furthermore, the whole cover includes a combined cover and a side circular chainring cover.

[0009] Furthermore, the whole cover includes a front upper cover, a rear full cover and a side circular chainring cover.

[0010] The utility model has the following beneficial effects:

[0011] The accessories of the front upper cover are installed on the bicycle frame riser, and the angle can be rotated with the bicycle frame riser as the axis and the height can be adjusted up and down along the bicycle frame riser. The front upper cover is installed on accessory one and can be adjusted in the left and right directions of the vehicle. The angle of the front upper cover can be adjusted on accessory one in the direction of rotation of the chainring to adapt to chainrings of different diameters. The front upper cover can be adjusted in all the directions and angles mentioned above to improve its versatility.

[0012] The third accessory of the rear cover is installed on the rear chainstay of the frame. The third accessory of the rear cover can be moved forward and backward on the chainstay and can be rotated with the chainstay as the axis to adjust the angle. The third accessory of the rear cover serves as the installation platform of the rear cover. When installing the rear cover, multiple points are used for fixation, and three points are the best. The three points for installing the rear cover can be fixed with screws, and the height can be adjusted by rotating the screws or by adding or removing gaskets to adjust the height, which is used to adjust the plane of the rear cover to a suitable effect. There are two long strip holes in the up and down directions on the rear cover, which can allow the rear cover to be adjusted in the up and down directions. There are three long strip holes on the third accessory of the rear cover so that the rear cover can be swung and adjusted in the front and back directions. The rear cover can be adjusted in the above directions and angles to adapt to different vehicle specifications and chainring sizes.

[0013] The side circular chainring cover is provided with an elongated hole at the fixing screw, and the screw can be moved and adjusted in the elongated hole to adapt to chainrings with different chainring cover mounting hole distances; the height of the side circular chainring cover can be adjusted to a suitable position by adding or removing gaskets at the fixing screw. The technical solution of the utility model allows users to easily select a suitable chainring cover as long as they understand the number of mounting holes on the chainring, and simplifies the selection steps so that users are more willing to do more corresponding protection.

[0014] The components in the combined chainring cover are moved closer or farther away from each other to adapt to different vehicle models and chainring sizes, thereby improving versatility and meeting more user needs. The components are easy to install and adjust, making them more acceptable to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a main plan view of a bicycle combined chainring cover of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of a bicycle combined crankcase cover of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of an accessory of a bicycle combined crankcase cover according to the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of another installation method of an accessory of a bicycle combined crankcase cover of the utility model;

[0020] Figure 5 It is a rear perspective schematic diagram of a bicycle combined crankcase cover of the utility model;

[0021] Figure 6 It is a plan view of another special combination form of a bicycle combined chainring cover of the utility model;

[0022] Figure 7 It is a plan view of another embodiment of a combined crankcase cover for a bicycle according to the utility model;

[0023] Figure 8 The utility model is a schematic structural diagram of a whole cover of a bicycle combined chainring cover.

[0024] In the figure: 1. front upper cover; 2. rear cover; 3. side circular chainring cover; 4. bicycle frame riser; 5. bicycle chain; 6. bicycle front derailleur; 7. bicycle rear wheel; 8. frame down tube; 11. accessory one; 12. whole cover; 13. chainring; 14. mounting platform; 15. long hole one; 16. long hole four; 17. long hole five; 19. accessory two; 21. accessory three; 22. frame rear chainring; 23. metal sheet; 25. long hole two; 28. long hole three. DETAILED DESCRIPTION

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

[0026] According to one aspect of the present invention, Figure 1-8 As shown, a bicycle combined crank cover is provided, wherein the entire cover 12 comprises a front upper cover 1, a rear cover 2 and a side circular crank cover 3.

[0027] The rear surface of the front upper cover 1 is fixedly connected with an accessory 11, and the outer wall of the accessory 11 has a long strip hole 5 17. The front upper cover 1 and the long strip hole 5 17 are fixedly connected by screws, and the inner side of the accessory 11 is snap-connected with a bicycle frame standpipe 4.

[0028] The front upper cover 1 is installed on the accessory 11 and can be adjusted in the left and right directions of the vehicle. The accessory 11 can be rotated with the bicycle frame stand pipe 4 as the axis to adjust the angle, and the accessory can be adjusted up and down along the bicycle frame stand pipe 4.

[0029] Another form of mounting accessory 2 19 is fixedly connected to the rear surface of the front upper cover 1, and an outer side wall of the mounting accessory 2 19 has an elongated hole 5 17, and the front upper cover 1 is fixedly connected to the elongated hole 5 17 by screws, and a mounting platform 14 is fixedly connected to the rear surface of the mounting accessory 2 19, and the mounting platform 14 is fixedly connected to the bicycle rack standpipe 4 by a clamp 18, and an elongated hole 15 is opened on the front surface of the mounting platform 14, and the mounting accessory 2 19 is fixedly connected to the elongated hole 15 by screws.

[0030] The front upper cover 1 is installed on the accessory 2 19 and can be adjusted in the left and right directions of the vehicle. The accessory 2 19 is swung on the mounting platform 14 in the direction of rotation of the chainring to adjust the angle to adapt to chainrings of different diameters. The mounting platform 14 can rotate and adjust the angle with the bicycle frame riser 4 as the axis. The mounting platform 14 can adjust the height up and down along the bicycle frame riser 4. The front upper cover 1 is adjustable in all the above directions and angles to improve its versatility.

[0031] The rear surface of the rear cover 2 is fixedly connected with an accessory three 21, and the rear surface of the accessory three 21 is provided with a frame rear chain fork 22. The outer side wall of the frame rear chain fork 22 is provided with a metal sheet 23. The metal sheet 23 and the accessory three 21 are fixedly installed on the frame rear chain fork 22 by screws. The front surface of the accessory three 21 is provided with a long strip hole three 28, and the front surface of the rear cover 2 is provided with a long strip hole two 25.

[0032] The accessory three 21 of the rear cover 2 is installed on the rear chain fork 22 of the frame. The accessory three 21 of the rear cover 2 can be moved forward and backward on the chain fork 22 for adjustment and can be rotated around the chain fork to adjust the angle; the accessory three 21 of the rear cover 2 serves as the installation platform of the rear cover 2. Multi-point fixation is adopted when installing the rear cover 2, and three-point fixation is optimal; the three points 27 for installing the rear cover 2 can be fixed with screws, and the height can be adjusted by rotating the screws or by adding or removing gaskets to adjust the height, which is used to adjust the plane of the rear cover 2 to a suitable effect; there are two long strip holes 25 in the up and down directions on the rear cover 2, which can allow the rear cover 2 to be adjusted in the up and down directions; there are long strip holes 28 on the accessory three 21 of the rear cover 2, so that the rear cover 2 can be swung and adjusted in the front and rear directions. The rear cover 2 can be adjusted in all the above directions and angles to adapt to different vehicle specifications and chainring sizes, and gaskets are added at the screw connections.

[0033] The side circular chainring cover 3 is provided with a plurality of long strip holes 16 on the front surface, the rear surface of the side circular chainring cover 3 is fixedly connected with the chainring 13, the side circular chainring cover 3 and the chainring 13 are fixedly connected by screws, and gaskets are added at the screw connections.

[0034] The side circular chainring cover 3 is designed with an elongated hole 16 at the fixing screw, and the screw can be moved and adjusted in the elongated hole 16 to adapt to chainrings with different chainring cover mounting hole distances; the height of the side circular chainring cover can be adjusted to a suitable position by adding or removing gaskets at the fixing screw. The technical solution of the utility model allows users to easily select a suitable chainring cover as long as they understand the number of mounting holes on the chainring, simplifying the selection steps so that users are more willing to do more corresponding protection.

[0035] A distance is kept between the front upper cover 1 and the rear cover 2 where the speed change derailleur 6 is located, so that the front upper cover and the rear cover can be brought closer together in the case of a smaller toothed disc.

[0036] According to one aspect of the present invention, Figure 6 As shown, the whole cover 12 includes a combined cover 9 and a side circular chainring cover 3. In another special embodiment of the utility model, the front upper cover 1 and the rear cover 2 are integrated into a combined cover 9.

[0037] According to one aspect of the present invention, Figure 7 As shown, the whole cover 12 includes a front upper cover 1, a rear full cover 10 and a side circular chainring cover 3. The rear cover 2 can also be made into a rear full cover 10 that fully protects the rear upper and rear lower parts. The rear cover 2 is provided with two or more installation positions and accessories, which is also within the scope of the present invention. The front upper cover 1, the rear cover 2 and the side circular chainring cover 3 are used separately, which is also within the scope of the present invention.

[0038] The working principle of this device is:

[0039] The front upper cover 1 is installed on the accessory 11 and can be adjusted in the left and right directions of the vehicle. The accessory 11 can be rotated with the bicycle frame stand pipe 4 as the axis to adjust the angle, and the accessory can be adjusted up and down along the bicycle frame stand pipe 4.

[0040] The front upper cover 1 is installed on the accessory 2 19 and can be adjusted in the left and right directions of the vehicle. The accessory 2 19 is swung on the mounting platform 14 in the direction of rotation of the chainring to adjust the angle to adapt to chainrings of different diameters. The mounting platform 14 can rotate and adjust the angle with the bicycle frame riser 4 as the axis. The mounting platform 14 can adjust the height up and down along the bicycle frame riser 4. The front upper cover 1 is adjustable in all the above directions and angles to improve its versatility.

[0041] The accessory three 21 of the rear cover 2 is installed on the rear chain fork 22 of the frame; the accessory three 21 of the rear cover 2 can be moved forward and backward on the chain fork 22 for adjustment and can be rotated around the chain fork to adjust the angle; the accessory three 21 of the rear cover 2 serves as a mounting platform for the rear cover 2; multi-point fixation is adopted when installing the rear cover 2, and three-point fixation is optimal; the three points 27 for installing the rear cover 2 can be fixed with screws, and the height can be adjusted by rotating the screws or by adding or removing gaskets to adjust the height, which is used to adjust the plane of the rear cover 2 to a suitable effect; there are two long strip holes 25 in the up and down directions on the rear cover 2, which can allow the rear cover 2 to be adjusted in the up and down directions; there are long strip holes 28 on the accessory three 21 of the rear cover 2, so that the rear cover 2 can be swung and adjusted in the front and rear directions. The rear cover 2 can be adjusted in all the above directions and angles to adapt to different vehicle specifications and chainring sizes.

[0042] The side circular chainring cover 3 is designed with an elongated hole 16 at the fixing screw, and the screw can be moved and adjusted in the elongated hole 16 to adapt to chainrings with different chainring cover mounting hole distances; the height of the side circular chainring cover can be adjusted to a suitable position by adding or removing gaskets at the fixing screw. The technical solution of the utility model allows users to easily select a suitable chainring cover as long as they understand the number of mounting holes on the chainring, simplifying the selection steps so that users are more willing to do more corresponding protection.

[0043] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A bicycle combined crankcase cover, comprising a whole cover (12), characterized in that: The whole cover comprises a front upper cover (1), a rear cover (2) and a side circular chainring cover (3); the rear surface of the front upper cover (1) is fixedly connected to an accessory one (11); the front surface of the accessory one (11) is provided with a long strip hole five (17); the front upper cover (1) and the long strip hole five (17) are fixedly connected by screws; the inner side wall of the accessory one (11) is snap-connected to a bicycle frame standpipe (4).

2. The bicycle combined crankcase cover according to claim 1, characterized in that: A bicycle combined crankset cover; the rear surface of the front upper cover (1) is fixedly connected with a second mounting accessory (19), the outer side wall of the second mounting accessory (19) is provided with a fifth elongated hole (17), the front upper cover (1) and the fifth elongated hole (17) are fixedly connected by screws, the rear surface of the second mounting accessory (19) is fixedly connected with a mounting platform (14), the mounting platform (14) and the bicycle frame standpipe (4) are fixedly connected by a clamp (18), the front surface of the mounting platform (14) is provided with a first elongated hole (15), the second mounting accessory (19) and the first elongated hole (15) are fixedly connected by screws.

3. The bicycle combined crankcase cover according to claim 1, characterized in that: A bicycle combined crankset cover; the rear surface of the rear cover (2) is fixedly connected with a third accessory (21); the rear cover (2) and the third accessory (21) are connected via height adjustment screws; the rear surface of the third accessory (21) is provided with a frame rear fork (22); the outer side wall of the frame rear fork (22) is provided with a metal sheet (23); the metal sheet (23) and the third accessory (21) are fixedly mounted on the outer side wall of the frame rear fork (22) via screws; the front surface of the third accessory (21) is provided with a third elongated hole (28); the front surface of the rear cover (2) is provided with a second elongated hole (25).

4. The bicycle combined crankcase cover according to claim 1, characterized in that: A bicycle combined chainring cover; the side circular chainring cover (3) is provided with four long strip holes (16) on the front surface; the rear surface of the side circular chainring cover (3) is fixedly connected to a chainring (13); the side circular chainring cover (3) and the chainring (13) are fixedly connected by screws.

5. The bicycle combined crankcase cover according to claim 1, characterized in that: The whole cover (12) comprises a combined cover (9) and a side circular toothed disc cover (3).

6. The bicycle combined crankcase cover according to claim 1, characterized in that: The whole cover (12) comprises a front upper cover (1), a rear full cover (10) and a side circular chainring cover (3).

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