Folding gear of rearview mirror

Abstract

The utility model belongs to the field of gears, and particularly relates to a rearview mirror folding gear which comprises a gear ring, a plurality of teeth are fixedly installed on the outer side of the gear ring, a notch assembly is formed in the front side of the gear ring, a first positioning groove with an opening in the rear side is formed in the inner wall of the gear ring, and the notch assembly comprises a first notch, a second notch and a third notch. The first notch, the second notch and the third notch are all formed in the front side of the gear ring, the second notch is located between the first notch and the third notch, the included angle between the first notch and the second notch is 120 degrees, the included angle between the second notch and the third notch is 120 degrees, and the included angle between the first notch and the third notch is 120 degrees. The gear is reasonable in design, the stability of the gear can be improved by arranging the three notches, and the gear can be conveniently installed on shafts with different diameters by disassembling the inner ring.

Description

Technical Field

[0001] The utility model relates to the technical field of gears, in particular to a rearview mirror folding gear. Background Art

[0002] After the car is parked, in order to prevent the rearview mirror from being damaged by external force, the rearview mirror needs to be folded toward the inside of the car body at a certain angle. Generally, a rearview mirror folding device is installed on the car, and the rearview mirror is driven forward by the rearview mirror folding device.

[0003] At present, a car rearview mirror folder spiral gear is announced in the Chinese patent announcement with announcement number CN220850647U, which belongs to the field of gears and includes a gear ring and a boss. The gear ring includes an inner ring and a tooth block. The inner ring is fixedly connected to the tooth block. There are several tooth blocks, and the tooth blocks are evenly arranged on the outer surface of the inner ring. A first tooth groove is opened between the tooth blocks. The boss is located on the top surface of the inner ring and is integrally formed with the inner ring. The boss is provided with a thickening portion for thickening the wall thickness of the boss.

[0004] In actual use, it is found that the inner diameter of the ring gear is fixed, so the ring gear is installed on a shaft of a specified diameter. However, when the diameter of the shaft is different, gears of different diameters are required, which makes the use of gears have certain limitations. Therefore, we proposed a rearview mirror folding gear to solve the above problem. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a rearview mirror folding gear.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The rearview mirror folding gear comprises a gear ring, a plurality of teeth are fixedly mounted on the outer side of the gear ring, a notch assembly is provided on the front side of the gear ring, and a positioning groove 1 with an opening at the rear side is provided on the inner wall of the gear ring;

[0008] The notch assembly includes a first notch, a second notch and a third notch, wherein the first notch, the second notch and the third notch are all opened on the front side of the gear ring, the second notch is located between the first notch and the third notch, and the angle between the first notch and the second notch is set to 120°, the angle between the second notch and the third notch is set to 120°, and the angle between the first notch and the third notch is set to 120°.

[0009] Preferably, an inner ring is installed in the gear ring, and a disassembly and assembly mechanism is provided between the inner ring and the gear ring.

[0010] Preferably, a positioning protrusion is provided on the outer side of the gear ring, and the positioning protrusion is matched with the positioning groove 1, and a positioning groove 2 with an opening at the rear side is provided on the inner wall of the inner ring.

[0011] Preferably, the disassembly and assembly mechanism comprises a bolt groove and a countersunk bolt, wherein the bolt groove is formed on the inner wall of the gear ring, and the inner ring is provided with a countersunk bolt matched with the bolt groove.

[0012] Preferably, the disassembly and assembly mechanism comprises a receiving groove and a bolt hole, the receiving groove is provided on the inner wall of the inner ring, a bolt hole is provided on the inner wall of the receiving groove, and a countersunk bolt is threadedly installed in the bolt hole.

[0013] Preferably, a protective layer is coated on the teeth, and the protective layer includes an anti-rust coating, a corrosion-resistant coating and a wear-resistant coating. The anti-rust coating is coated on the teeth, the corrosion-resistant coating is coated on the anti-rust coating, and the wear-resistant coating is coated on the corrosion-resistant coating.

[0014] Beneficial effects of the utility model:

[0015] 1. Through the first notch, the second notch and the third notch on the gear ring, and the angle is set to 120°, when the plug-in block is inserted into the corresponding notch, the stability of the gear can be increased, and by providing a protective layer, the rust, corrosion and wear resistance of the gear can be increased;

[0016] 2. When the diameters of the shafts on which the gears are installed are different, the inner ring can be positioned by inserting the inner ring into the gear ring and by the cooperation of the positioning protrusion and the positioning groove. The inner ring can be installed by turning the countersunk bolt so that the countersunk bolt is screwed into the bolt groove, thereby facilitating the installation of gears on shafts of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of the rearview mirror folding gear proposed by the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the rearview mirror folding gear proposed by the utility model;

[0019] Figure 3 This is a schematic structural diagram of part A of the rearview mirror folding gear proposed by the utility model;

[0020] Figure 4 This is a schematic cross-sectional structure diagram of the protective layer of the rearview mirror folding gear proposed by the utility model.

[0021] In the figure: 1. gear ring; 2. tooth; 3. first notch; 4. second notch; 5. third notch; 6. inner ring; 7. protective layer; 701. rust-proof coating; 702. corrosion-resistant coating; 703. wear-resistant coating; 8. positioning groove one; 9. positioning protrusion; 10. positioning groove two; 11. bolt groove; 12. storage groove; 13. bolt hole; 14. countersunk bolt. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0023] Reference Figure 1-4 , a rearview mirror folding gear comprises a gear ring 1, a plurality of teeth 2 are fixedly mounted on the outer side of the gear ring 1, a notch assembly is provided on the front side of the gear ring 1, a positioning groove 8 with an opening on the rear side is provided on the inner wall of the gear ring 1, the notch assembly comprises a first notch 3, a second notch 4 and a third notch 5, the first notch 3, the second notch 4 and the third notch 5 are all provided on the front side of the gear ring 1, the second notch 4 is located between the first notch 3 and the third notch 5, and the angle between the first notch 3 and the second notch 4 is set to 120°, the angle between the second notch 4 and the third notch 5 is set to 120°, and the angle between the first notch 3 and the third notch 5 is set to 120°. Through the first notch 3, the second notch 4 and the third notch 5 on the gear ring 1, and the angle is set to 120°, when the plug-in block is inserted into the corresponding notch, the stability of the gear can be increased.

[0024] In this embodiment, an inner ring 6 is installed in the gear ring 1, and a disassembly and assembly mechanism is provided between the inner ring 6 and the gear ring 1. A positioning protrusion 9 is provided on the outer side of the gear ring 1, and the positioning protrusion 9 is adapted to a positioning groove 8. Through the cooperation between the positioning protrusion 9 and the positioning groove 8, the inner ring 6 can be positioned, and a positioning groove 2 10 with an opening on the rear side is provided on the inner wall of the inner ring 6.

[0025] In this embodiment, the disassembly mechanism includes a bolt groove 11 and a countersunk bolt 14. The bolt groove 11 is provided on the inner wall of the gear ring 1. The inner ring 6 is provided with a countersunk bolt 14 that matches the bolt groove 11. The disassembly mechanism includes a receiving groove 12 and a bolt hole 13. The receiving groove 12 is provided on the inner wall of the inner ring 6. The inner wall of the receiving groove 12 is provided with a bolt hole 13, and the countersunk bolt 14 is threadedly installed in the bolt hole 13. By rotating the countersunk bolt 14, the countersunk bolt 14 is screwed into the bolt groove 11, so that the inner ring 6 can be installed, thereby facilitating the installation of the gear on shafts of different diameters. .

[0026] In this embodiment, a protective layer 7 is coated on the tooth 2, and the protective layer 7 includes an anti-rust coating 701, a corrosion-resistant coating 702 and a wear-resistant coating 703. The anti-rust coating 701 is coated on the tooth 2, the corrosion-resistant coating 702 is coated on the anti-rust coating 701, and the wear-resistant coating 703 is coated on the corrosion-resistant coating 702. By providing the protective layer 7, the anti-rust, anti-corrosion and wear-resistant properties of the gear can be increased.

[0027] In the utility model, through the first slot 3, the second slot 4, and the third slot 5 on the gear ring 1, and the angle is set to 120°, when the plug-in block is inserted into the corresponding slot, the stability of the gear can be increased. By providing a protective layer 7, the rust-proof, corrosion-proof and wear-resistant properties of the gear can be increased. When the diameter of the shaft on which the gear is installed is different, the inner ring 6 can be positioned by inserting the inner ring 6 into the gear ring 1 and by the cooperation of the positioning protrusion 9 and the positioning groove 8. By rotating the countersunk bolt 14 so that the countersunk bolt 14 is screwed into the bolt groove 11, the inner ring 6 can be installed, thereby achieving the purpose of facilitating the installation of the gear on shafts of different diameters.

[0028] The above is a detailed introduction to the rearview mirror folding gear provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. Rearview mirror folding gear, characterized in that: It comprises a gear ring (1), a plurality of teeth (2) are fixedly mounted on the outer side of the gear ring (1), a notch assembly is provided on the front side of the gear ring (1), and a positioning groove (8) with an opening at the rear side is provided on the inner wall of the gear ring (1); The notch assembly comprises a first notch (3), a second notch (4) and a third notch (5); the first notch (3), the second notch (4) and the third notch (5) are all arranged on the front side of the gear ring (1); the second notch (4) is located between the first notch (3) and the third notch (5); and the angle between the first notch (3) and the second notch (4) is set to 120°, the angle between the second notch (4) and the third notch (5) is set to 120°, and the angle between the first notch (3) and the third notch (5) is set to 120°.

2. The rearview mirror folding gear according to claim 1, characterized in that: An inner ring (6) is installed in the gear ring (1), and a disassembly and assembly mechanism is provided between the inner ring (6) and the gear ring (1).

3. The rearview mirror folding gear according to claim 1, characterized in that: The outer side of the gear ring (1) is provided with a positioning protrusion (9), and the positioning protrusion (9) is matched with the first positioning groove (8), and the inner wall of the inner ring (6) is provided with a second positioning groove (10) with an opening at the rear side.

4. The rearview mirror folding gear according to claim 1, characterized in that: The disassembly and assembly mechanism comprises a bolt groove (11) and a countersunk bolt (14); the bolt groove (11) is formed on the inner wall of the gear ring (1); and the inner ring (6) is provided with a countersunk bolt (14) matched with the bolt groove (11).

5. The rearview mirror folding gear according to claim 4, characterized in that: The disassembly and assembly mechanism comprises a receiving groove (12) and a bolt hole (13); the receiving groove (12) is formed on the inner wall of the inner ring (6); a bolt hole (13) is formed on the inner wall of the receiving groove (12); and a countersunk bolt (14) is threadedly installed in the bolt hole (13).

6. The rearview mirror folding gear according to claim 1, characterized in that: A protective layer (7) is coated on the teeth (2).

7. The rearview mirror folding gear according to claim 6, characterized in that: The protective layer (7) comprises an anti-rust coating (701), a corrosion-resistant coating (702) and a wear-resistant coating (703); the anti-rust coating (701) is coated on the tooth (2); the corrosion-resistant coating (702) is coated on the anti-rust coating (701); and the wear-resistant coating (703) is coated on the corrosion-resistant coating (702).

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