Bicycle fluted disc structure convenient to install

Abstract

The utility model relates to the technical field of bicycle fluted discs, and discloses a bicycle fluted disc structure convenient to install, which comprises a connecting shaft and two semi-fluted discs, the two semi-fluted discs are spliced to form a complete semi-fluted disc body, the surface of the connecting shaft is fixedly connected with a connecting block, the connecting block is of a circular structure, and the connecting shaft is fixedly connected with the connecting block. The two half fluted discs are spliced and mounted on the surface of the connecting shaft and located on one side of the connecting block, reinforcing fixing blocks are fixedly mounted in the middles of the two half fluted discs and are of square structures, and threaded parts are connected between the reinforcing fixing blocks and the connecting block; the bicycle fluted disc is provided with the double-petal disassembly and assembly structure, the fluted disc of the double-petal disassembly and assembly structure can be conveniently disassembled and assembled, people can conveniently use the bicycle fluted disc, meanwhile, the fluted disc of the double-petal disassembly and assembly structure is provided with an effective fixing structure, and the use stability and firmness of the fluted disc of the double-petal disassembly and assembly structure can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycle gear discs, in particular to a bicycle gear disc structure which can be conveniently installed. Background Art

[0002] Bicycles are not only used for transportation and fitness, but also because they rely on human pedaling to move forward, there is naturally no problem of exhaust emission or the need for additional fuel. Because riding a bicycle has so many benefits, the sport of bicycles has swept all over the world in recent years. There are many components on a bicycle, among which the toothed disc is an indispensable one. The toothed disc is the part connecting the bicycle's middle shaft and the crank. People drive the crank by pedaling, which in turn drives the toothed disc to rotate, and finally drives the rear wheel to rotate through the chain and flywheel to provide power. When assembling or repairing a bicycle, the toothed disc needs to be disassembled and assembled. The existing toothed disc is an integral structure. When disassembling and assembling, the structure on the connecting shaft needs to be disassembled and assembled in sequence before it can be disassembled and assembled, which makes the disassembly and assembly of the toothed disc inconvenient. Therefore, improvements are needed to address the above problems. Utility Model Content

[0003] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bicycle sprocket structure that can be easily installed, comprising a connecting shaft and two half sprockets, the two half sprockets being spliced ​​together to form a complete half sprocket body, the surface of the connecting shaft being fixedly connected with a connecting block, the connecting block presenting a circular structure, the two half sprockets being spliced ​​and installed on the surface of the connecting shaft and located on one side of the connecting block, the middle parts of the two half sprockets being fixedly installed with a reinforcing fixing block, the reinforcing fixing block presenting a square structure, and threaded parts being connected between the reinforcing fixing block and the connecting block.

[0004] Preferably, a square mounting block is fixedly installed on the surface of the connecting shaft and on one side of the connecting block. A triangular slot is opened in the middle of the two half-toothed discs. The triangular slot presents an isosceles right-angled triangle structure. The half-toothed discs are installed on the surface of the square mounting block through the triangular slot.

[0005] Preferably, the threaded parts all include a square block, a circular mounting groove is provided in the middle of the square block, a rotatable and adjustable round block is installed in the middle of the circular mounting groove, a threaded pin is fixedly connected to the middle of the round block, a nut is fixedly connected to one end of the threaded pin, a square mounting groove is provided in the middle of the reinforcing fixing block, the square mounting groove has a guide convex structure, four threaded holes are provided on one side of the connecting block close to the reinforcing fixing block, the four threaded holes are respectively aligned with the four square mounting grooves, the square block is installed inside the square mounting groove, and the threaded pin is threadedly connected to the threaded hole, so that the connection, installation and fixation can be effectively performed.

[0006] Compared with the prior art, the utility model has the following beneficial effects: by providing a connecting shaft, a half toothed disc, a connecting block, a reinforcing fixing block, a threaded piece, a square mounting block, a triangular slot, a square block, a circular mounting slot, a threaded pin, a threaded pin, a nut, a square mounting slot and a threaded hole, the bicycle toothed disc has a double-petal disassembly and assembly structure; the toothed disc with the double-petal disassembly and assembly structure can be conveniently disassembled and assembled, which is convenient for people to use; at the same time, the toothed disc with the double-petal disassembly and assembly structure has an effective fixing structure, which can ensure the stability and firmness of the use of the double-petal structure toothed disc; and the toothed disc with the double-petal disassembly and assembly structure is simple in design, convenient and quick to use and disassemble, and stable and reliable in installation and connection, and its performance can meet people's use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0008] In the attached picture:

[0009] Figure 1 It is a partial front view structural diagram of a bicycle gear disc structure that can be easily installed according to the utility model;

[0010] Figure 2 It is a schematic diagram of a partial side section structure of a bicycle gear disc structure that can be easily installed according to the utility model;

[0011] Figure 3 For this utility model Figure 2 Schematic diagram of the expanded structure;

[0012] In the figure: 1. connecting shaft; 2. half toothed disc; 3. connecting block; 4. reinforcing fixing block; 5. threaded part; 6. square mounting block; 7. triangular slot; 8. square block; 9. circular mounting slot; 10. threaded pin; 11. threaded pin; 12. nut; 13. square mounting slot; 14. threaded hole. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0014] Example, by Figures 1 to 3The utility model comprises a connecting shaft 1 and two half toothed discs 2, the two half toothed discs 2 are spliced ​​to form a complete half toothed disc body, the surface of the connecting shaft 1 is fixedly connected with a connecting block 3, the connecting block 3 presents a circular structure, the two half toothed discs 2 are spliced ​​and installed on the surface of the connecting shaft 1 and are located on one side of the connecting block 3, the middle parts of the two half toothed discs 2 are fixedly installed with a reinforcing fixing block 4, the reinforcing fixing block 4 presents a square structure, and a threaded member 5 is connected between the reinforcing fixing block 4 and the connecting block 3; the surface of the connecting shaft 1 and one side of the connecting block 3 are fixedly installed with a square mounting block 6, the middle parts of the two half toothed discs 2 are provided with a triangular slot 7, the triangular slot 7 presents an isosceles right triangle structure, the half toothed disc 2 is installed on the surface of the square mounting block 6 through the triangular slot 7, the two triangular slots 7 can be effectively installed on the surface of the square mounting block 6 after splicing, and through the setting of the triangular slot 7 and the square mounting block 6, the connecting shaft 1 can stably and effectively drive the complete half toothed disc body composed of the two half toothed discs 2 to rotate and adjust when it rotates.

[0015] The threaded members 5 all include a block 8, a circular mounting groove 9 is provided in the middle of the block 8, a rotatable and adjustable round block 10 is installed in the middle of the circular mounting groove 9, a threaded pin 11 is fixedly connected in the middle of the round block 10, a nut 12 is fixedly connected at one end of the threaded pin 11, the circular mounting groove 9 is a cylindrical hollow through groove, and a large cylindrical hollow groove is provided in the middle of the cylindrical hollow through groove, so as to facilitate the installation and rotation adjustment of the round block 10 and the threaded pin 11; a square mounting groove 13 is provided in the middle of the reinforcing fixing block 4, and the square mounting groove 13 presents a guide convex structure, and four threaded holes 14 are provided on one side of the connecting block 3 close to the reinforcing fixing block 4, and the four threaded holes 14 are respectively aligned with the four square mounting grooves 13, the block 8 is installed in the inside of the square mounting groove 13, and the threaded pin 11 is threadedly connected with the threaded hole 14, so that the connection, installation and fixation can be effectively performed;

[0016] When the two half-sprockets 2 need to be disassembled, the nut 12 is first rotated by a tool. The rotation of the nut 12 will drive the round block 10 and the threaded pin 11 to rotate. The rotation of the threaded pin 11 will rotate out from the inside of the threaded hole 14, and finally the block 8 will be withdrawn from the inside of the square mounting groove 13 to disassemble the two half-sprockets 2.

[0017] The side of the bottom of the block 8 close to the square mounting groove 13 is an extrusion slope structure, and the end of the inside of the reinforcing fixing block 4 close to the extrusion slope structure is a compression slope structure. The extrusion slope structure contacts the compression slope structure, so that the two half-sprockets 2 can be tightly spliced ​​to form a complete half-sprocket structure. When the block 8 is installed inside the square mounting groove 13, the extrusion slope structure contacts the compression slope structure. As the threaded pin 11 is screwed into the threaded hole 14, the block 8 is squeezed and inserted into the square mounting groove 13. At the same time, the extrusion slope structure squeezes the compression slope structure, so that the two half-sprockets 2 can be tightly contacted and spliced ​​to form a complete half-sprocket structure, so that the chain can be effectively installed and rotated and adjusted later.

[0018] The bicycle sprocket has a double-petal disassembly and assembly structure, which can be easily disassembled and assembled, making it convenient for people to use. At the same time, the sprocket has an effective fixing structure, which can ensure the stability and firmness of the double-petal structure sprocket. In addition, the sprocket has a simple design, is convenient to use and disassemble, and has a stable and reliable installation connection. Its performance can meet people's use needs.

Claims

1. A bicycle gear disc structure that can be easily installed, comprising a connecting shaft (1) and two half gear discs (2), wherein the two half gear discs (2) are spliced ​​together to form a complete half gear disc body, characterized in that: The surface of the connecting shaft (1) is fixedly connected with a connecting block (3), the connecting block (3) presents a circular structure, the two half toothed discs (2) are spliced ​​and installed on the surface of the connecting shaft (1) and are located on one side of the connecting block (3), the middle of the two half toothed discs (2) are fixedly installed with a reinforcing fixing block (4), the reinforcing fixing block (4) presents a square structure, and a threaded member (5) is connected between the reinforcing fixing block (4) and the connecting block (3).

2. A bicycle gear disc structure that can be easily installed according to claim 1, characterized in that: A square mounting block (6) is fixedly mounted on the surface of the connecting shaft (1) and located on one side of the connecting block (3); a triangular slot (7) is provided in the middle of each of the two half-toothed discs (2); the triangular slot (7) presents an isosceles right-angled triangle structure; the half-toothed discs (2) are mounted on the surface of the square mounting block (6) via the triangular slot (7).

3. The bicycle gear disc structure that can be easily installed according to claim 1, characterized in that: The threaded member (5) comprises a block (8), a circular mounting groove (9) is provided in the middle of the block (8), a rotatable and adjustable round block (10) is installed in the middle of the circular mounting groove (9), a threaded pin (11) is fixedly connected to the middle of the round block (10), and a nut (12) is fixedly connected to one end of the threaded pin (11).

4. The bicycle gear disc structure that can be easily installed according to claim 3, characterized in that: A square mounting groove (13) is provided in the middle of the reinforcing fixing block (4), and the square mounting groove (13) presents a guide convex structure. Four threaded holes (14) are provided on a side of the connecting block (3) close to the reinforcing fixing block (4), and the four threaded holes (14) are respectively aligned with the four square mounting grooves (13). The block (8) is installed inside the square mounting groove (13), and the threaded pin (11) is threadedly connected to the threaded hole (14).

5. The bicycle gear disc structure that can be easily installed according to claim 4, characterized in that: The side of the bottom of the block (8) close to the square installation groove (13) is an extrusion slope structure, and the end of the interior of the reinforcing fixing block (4) close to the extrusion slope structure is a pressure slope structure, and the extrusion slope structure is in contact with the pressure slope structure.

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