Novel carbon fiber bicycle fluted disc capable of preventing chain from falling off

Abstract

The utility model discloses a novel carbon fiber bicycle fluted disc capable of preventing a chain from falling off, which comprises a disc body, the tops of the two ends of the disc body are respectively provided with a fixing frame, and the two ends of the disc body are respectively provided with a retaining structure used for preventing the chain from falling off. When the novel carbon fiber bicycle fluted disc capable of preventing the chain from falling off is installed and used through the fluted disc, after the arranged retaining plates are attached to the front ends of the connecting blocks at the two ends of the disc body respectively, two sets of first connecting bolts penetrate through the interiors of through grooves and are correspondingly screwed into threaded holes in the connecting blocks, and then the connecting blocks are fixed to the two ends of the disc body; the retaining plates can be fixedly mounted at the two ends of the disc body, the two sides of the chain can be limited in an auxiliary manner in the process that the chain rotates outside the disc body through the six groups of retaining plates which are oppositely arranged, so that the chain can be kept on the disc body, and falling of the chain during rotating operation is reduced and prevented; the problem that the chain cannot be conveniently subjected to anti-falling treatment is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle accessories, in particular to a novel carbon fiber bicycle gear disc which can prevent a chain from falling off. Background Art

[0002] Bicycles can also be called bicycles or bikes. They are generally two-wheeled small land vehicles driven by pedals. As a green and environmentally friendly means of transportation, they are widely used for travel and outings. Some special bicycles use carbon fiber materials to reduce weight. The main body of the bicycle made of carbon fiber material is lighter than that of ordinary steel frame bicycles. When carbon fiber bicycles are driven by pedals, a transmission chain structure is required. The transmission chain structure is composed of a toothed disc and a chain. The toothed disc is also called a pressure plate, which is an important component of the transmission chain. During the pedaling process, the external convex teeth are used to drive the chain and drive the rear wheel to move.

[0003] However, during the installation and use of the new carbon fiber bicycle chainring, when the chainring drives the chain to rotate, the chain is easily caused to fall off the chainring when it is subjected to large amplitude and external contact, causing the bicycle to be unable to ride normally. This is a disadvantage and it is not convenient to prevent the chain from falling off.

[0004] Now, a novel carbon fiber bicycle toothed disc which prevents the chain from falling off is proposed to solve the above-mentioned disadvantages. Utility Model Content

[0005] The utility model aims to provide a novel carbon fiber bicycle gear disc for preventing a chain from falling off, so as to solve the problem in the above background technology that it is inconvenient to carry out a chain anti-falling treatment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new carbon fiber bicycle gear disc for preventing a chain from falling off, comprising a disc body, a fixing frame is respectively arranged at the top of both ends of the disc body, and a retaining assembly for preventing the chain from falling off is respectively arranged at both ends of the disc body;

[0007] The retaining assembly includes a retaining plate, a through slot, a connecting block, a first connecting bolt, a connecting gasket and a threaded hole. Retaining plates are respectively provided at both ends of the disk body. Connecting blocks are respectively welded and fixed at both ends of the disk body, and threaded holes are respectively provided at the top and bottom of the front end of the connecting block. A through slot is provided inside the retaining plate, and two groups of first connecting bolts are provided at the front end of the retaining plate.

[0008] Preferably, the retaining plates and the connecting blocks are respectively arranged in three groups at equal intervals in an annular manner at both ends of the disc body.

[0009] Preferably, the through slot passes through the interior of the retaining plate, a connecting gasket is sleeved on the first connecting bolt, and the first connecting bolt passes through the interior of the through slot.

[0010] Preferably, scraping brushes are fixed to both sides of the rear end of the fixing frame, and multiple groups of scraping brushes are arranged at equal intervals vertically on both sides of the rear end of the fixing frame.

[0011] Preferably, a through hole is opened at the bottom of the front end of the fixing frame, a second connecting bolt is arranged at the bottom of the front end of the fixing frame, and a connecting nut is arranged on the second connecting bolt, and a reserved hole is opened at the top of the front end of the disk body.

[0012] Preferably, the through hole passes through the interior of the fixing frame, and the second connecting bolt passes through the reserved hole and the interior of the through hole respectively.

[0013] Preferably, inner grooves are respectively provided on the left sides of both ends of the disc body, and reflective strips are adhered and fixed inside the inner grooves.

[0014] Preferably, mounting holes are opened inside the disk body, and four groups of mounting holes are arranged at equal intervals on the disk body.

[0015] Compared with the prior art, the utility model has the beneficial effects that the novel carbon fiber bicycle gear disc for preventing the chain from falling off not only facilitates the anti-falling treatment of the chain and facilitates the auxiliary cleaning of the outside of the chain, but also facilitates the improvement of nighttime riding safety;

[0016] By providing a disc body, a retaining plate, a through groove, a connecting block, a first connecting bolt, a connecting gasket and a threaded hole, when the toothed disc is installed and used, the retaining plates provided can be attached to the front end of the connecting block at the two ends of the disc body respectively, and then the retaining plates can be fixedly installed at the two ends of the disc body by using two sets of first connecting bolts to penetrate the inside of the through groove and correspondingly screw into the threaded holes inside the connecting block. Through the six sets of retaining plates arranged opposite to each other, the two sides of the chain can be auxiliary limited during the rotation of the chain outside the disc body, so that the chain can be kept on the disc body, thereby reducing and preventing the chain from falling off during rotation.

[0017] By providing a disc body, a fixing frame, a scraping brush, a second connecting bolt, a reserved hole, a through hole and a connecting nut, when the toothed disc is installed and used, two sets of fixing frames can be symmetrically attached to the two ends of the disc body at the top of the two ends of the disc body, and then the second connecting bolt is used to penetrate the reserved hole and the inside of the two sets of through holes, and the connecting nut is used at the rear end of the disc body to be screwed into the outside of the second connecting bolt and locked, and then the fixing frame can be fixedly installed on the disc body. When the chain is installed on the outside of the disc body and rotates, some foreign matter and dust adhering to the outside of the two ends of the chain can be scraped and cleaned by the scraping brush fixed on the fixing frame to keep the outside of the chain clean;

[0018] By providing a disc body, an inner groove and a reflective strip, when the sprocket is in use, reflective strips are fixed in the inner grooves at both ends of the disc body respectively. The reflective strips can reflect external light on the disc body at night, and can form a ring shape when rotating for warning, thereby improving nighttime riding safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the side view structure of the retaining plate of the utility model;

[0021] Figure 3 It is a side view structural diagram of the fixing frame of the utility model;

[0022] Figure 4 For this utility model Figure 1 A in the figure is an enlarged structural diagram.

[0023] In the figure: 1. disk body; 2. retaining plate; 3. fixing frame; 4. mounting hole; 5. through groove; 6. connecting block; 7. first connecting bolt; 8. connecting gasket; 9. threaded hole; 10. scraper; 11. second connecting bolt; 12. reserved hole; 13. through hole; 14. connecting nut; 15. inner groove; 16. reflective strip. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 A new type of carbon fiber bicycle gear disc for preventing a chain from falling off comprises a disc body 1, a fixing frame 3 is respectively arranged on the top of both ends of the disc body 1, a mounting hole 4 is opened inside the disc body 1, and four groups of mounting holes 4 are arranged at equal intervals on the disc body 1, and a retaining assembly for preventing a chain from falling off is respectively arranged on both ends of the disc body 1;

[0026] The holding assembly includes a holding plate 2, a through slot 5, a connecting block 6, a first connecting bolt 7, a connecting gasket 8 and a threaded hole 9. The two ends of the disk body 1 are respectively provided with holding plates 2, and the two ends of the disk body 1 are respectively welded and fixed with connecting blocks 6, and the top and bottom of the front end of the connecting block 6 are respectively provided with threaded holes 9. The inside of the holding plate 2 is provided with a through slot 5, and the front end of the holding plate 2 is provided with two groups of first connecting bolts 7;

[0027] The holding plate 2 and the connecting block 6 are respectively provided with three groups of equal intervals in an annular manner at both ends of the disc body 1, the through groove 5 runs through the inside of the holding plate 2, the first connecting bolt 7 is sleeved with a connecting gasket 8, the first connecting bolt 7 runs through the inside of the through groove 5, and the two sides of the rear end of the fixing frame 3 are respectively fixed with scraping brushes 10, and the scraping brushes 10 are respectively provided with multiple groups of equal intervals vertically on both sides of the rear end of the fixing frame 3;

[0028] Specifically, Figure 1 and Figure 2 As shown, the retaining plates 2 can be attached to the front ends of the connecting blocks 6 at the two ends of the disc body 1, and then two sets of first connecting bolts 7 are used to penetrate the interior of the through grooves 5 and correspondingly screwed into the threaded holes 9 inside the connecting blocks 6, so that the retaining plates 2 can be fixedly installed at the two ends of the disc body 1. Through the six sets of retaining plates 2 arranged opposite to each other, the two sides of the chain can be auxiliary limited during the rotation of the chain outside the disc body 1, so that the chain can be kept on the disc body 1.

[0029] Embodiment 2: A through hole 13 is provided at the bottom of the front end of the fixing frame 3, a second connecting bolt 11 is provided at the bottom of the front end of the fixing frame 3, and a connecting nut 14 is provided on the second connecting bolt 11, a reserved hole 12 is provided at the top of the front end of the disk body 1, the through hole 13 passes through the interior of the fixing frame 3, and the second connecting bolt 11 passes through the interior of the reserved hole 12 and the through hole 13 respectively;

[0030] Specifically, Figure 1 and Figure 3 As shown, the two sets of fixing frames 3 can be symmetrically attached to the two ends of the disc body 1 at the top of the two ends of the disc body 1, and then the second connecting bolt 11 is used to penetrate the reserved hole 12 and the inside of the two sets of through holes 13, and the connecting nut 14 is screwed into the outside of the second connecting bolt 11 at the rear end of the disc body 1 to be locked, and then the fixing frame 3 can be fixedly installed on the disc body 1. When the chain is installed on the outside of the disc body 1 and rotates, the scraper 10 fixed on the fixing frame 3 can be used to assist in scraping and cleaning some foreign matter and dust adhering to the outside of the two ends of the chain.

[0031] Embodiment 3: Inner grooves 15 are respectively provided inside the left sides of both ends of the plate body 1, and reflective strips 16 are glued and fixed inside the inner grooves 15;

[0032] Specifically, Figure 1 and Figure 4 As shown, reflective strips 16 are fixed in the inner grooves 15 at both ends of the disc body 1. The reflective strips 16 can reflect external light at night on the disc body 1 and form a ring shape when rotating for warning.

[0033] Working principle: When the toothed disc of the utility model is installed and used, the set retaining plates 2 can be attached to the front end of the connecting block 6 at the two ends of the disc body 1 respectively, and then the retaining plates 2 can be fixedly installed at the two ends of the disc body 1 by using two sets of first connecting bolts 7 to penetrate the interior of the through groove 5 and correspondingly screw into the threaded holes 9 inside the connecting block 6. Through the six sets of retaining plates 2 arranged oppositely, the two sides of the chain can be auxiliary limited during the rotation of the chain outside the disc body 1, so that it can be kept on the disc body 1 to prevent it from falling off. At the same time, when the toothed disc is installed and used, the two sets of fixing frames 3 can be symmetrically attached to the two ends of the disc body 1 at the top of the two ends of the disc body 1 respectively, and then the retaining plates 2 can be fixedly installed by using the two sets of first connecting bolts 7 to penetrate the interior of the through groove 5 and correspondingly screw into the threaded holes 9 inside the connecting block 6. The second connecting bolt 11 passes through the reserved hole 12 and the two groups of through holes 13, and the connecting nut 14 is screwed into the rear end of the disc body 1 and locked on the outside of the second connecting bolt 11, and then the fixing frame 3 can be fixedly installed on the disc body 1. When the chain is installed on the outside of the disc body 1 and rotates, the scraper 10 fixed on the fixing frame 3 can be used to assist in scraping and cleaning some foreign matter and dust adhering to the outside of both ends of the chain to keep the outside of the chain clean. When the sprocket is in use, reflective strips 16 are fixed in the inner grooves 15 at both ends of the disc body 1. The reflective strips 16 can reflect external light on the disc body 1 at night, and can form a ring shape when rotating to warn, thereby improving night riding safety.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A novel carbon fiber bicycle gear disc for preventing a chain from falling off, comprising a disc body (1), characterized in that: A fixing frame (3) is respectively arranged at the top of both ends of the disc body (1), and a retaining assembly for preventing the chain from falling off is respectively arranged at both ends of the disc body (1); The retaining assembly comprises a retaining plate (2), a through slot (5), a connecting block (6), a first connecting bolt (7), a connecting gasket (8) and a threaded hole (9); the retaining plates (2) are respectively arranged at both ends of the disk body (1); the connecting blocks (6) are respectively welded and fixed at both ends of the disk body (1); the top and bottom of the front end of the connecting block (6) are respectively provided with threaded holes (9); the retaining plate (2) is provided with a through slot (5) inside; and the front end of the retaining plate (2) is provided with two groups of first connecting bolts (7).

2. The novel carbon fiber bicycle chainring for preventing the chain from falling off according to claim 1 is characterized in that: The retaining plates (2) and connecting blocks (6) are respectively arranged in three groups at equal intervals in an annular manner at both ends of the disc body (1).

3. The novel carbon fiber bicycle chainring for preventing the chain from falling off according to claim 1 is characterized in that: The through slot (5) passes through the interior of the retaining plate (2); a connecting gasket (8) is sleeved on the first connecting bolt (7); and the first connecting bolt (7) passes through the interior of the through slot (5).

4. The novel carbon fiber bicycle chainring for preventing the chain from falling off according to claim 1 is characterized in that: Scraping brushes (10) are fixed to both sides of the rear end of the fixing frame (3), and a plurality of groups of scraping brushes (10) are arranged at equal intervals vertically on both sides of the rear end of the fixing frame (3).

5. The novel carbon fiber bicycle chainring for preventing the chain from falling off according to claim 1 is characterized in that: A through hole (13) is provided at the bottom of the front end of the fixing frame (3), a second connecting bolt (11) is provided at the bottom of the front end of the fixing frame (3), and a connecting nut (14) is provided on the second connecting bolt (11), and a reserved hole (12) is provided at the top of the front end of the disk body (1).

6. The novel carbon fiber bicycle chainring for preventing the chain from falling off according to claim 5 is characterized in that: The through hole (13) passes through the interior of the fixing frame (3), and the second connecting bolt (11) passes through the interior of the reserved hole (12) and the through hole (13) respectively.

7. The novel carbon fiber bicycle chainring for preventing the chain from falling off according to claim 1 is characterized in that: The left sides of both ends of the disk body (1) are respectively provided with inner grooves (15), and reflective strips (16) are glued and fixed inside the inner grooves (15).

8. The novel carbon fiber bicycle chainring for preventing the chain from falling off according to claim 1 is characterized in that: The disk body (1) is provided with mounting holes (4) inside, and four groups of mounting holes (4) are arranged at equal intervals on the disk body (1).

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