Two-way fastening motorcycle chain adjuster

Abstract

The utility model relates to chain adjusting technical field, concretely is two -way fastening formula motorcycle chain adjuster, including the casing, the inside of casing is provided with the adjusting assembly for adjusting chain tightness, the adjusting assembly includes the pivot shaft that rotates and connects in the casing inside, one end fixedly connected with worm wheel that pivot shaft is located in the casing, the bottom meshing connection of worm wheel has worm, and one end of worm passes out the one side of casing and is rotationally connected with it, the beneficial effect of this device is: through adjusting assembly makes two meshing wheel angle change and tightens chain to exert two direction forces, or reverses two meshing wheel angle and loosens chain, thereby realizes the effect that the quick regulation, avoided the complicated situation that needs to adjust rear axle both sides adjuster to keep rear axle not deflection in traditional adjusting mode, thereby simplifies the adjustment process, improves the adjustment efficiency, and also avoided the situation that the rear axle deflection leads to the inaccuracy of adjustment.

Description

Technical Field

[0001] This utility model relates to the field of chain adjustment technology, specifically a two-way fastening motorcycle chain adjuster. Background Technology

[0002] Motorcycle chain adjusters are important tools for adjusting and maintaining proper chain tension, which can effectively extend chain life and improve riding safety. Traditional adjusters are installed on both sides of the rear axle, and the chain tension is changed by rotating the screw to adjust the position of the rear wheel. It is necessary to keep both sides symmetrical with the scale lines.

[0003] Traditional chain adjusters consist of two parts. Adjusting chain tension requires simultaneous adjustment of both adjusters to ensure the rear wheel doesn't skew, and the adjustments necessitate repeated checking of the scales on both sides, resulting in low efficiency and high precision requirements. Therefore, we propose a two-way fastening motorcycle chain adjuster. Utility Model Content

[0004] The purpose of this invention is to provide a two-way fastening motorcycle chain adjuster to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-way fastening motorcycle chain adjuster, comprising a housing, wherein an adjusting component for adjusting chain tension is disposed inside the housing, the adjusting component comprising a rotating shaft rotatably connected to the housing via a bearing, a worm gear fixedly connected to one end of the rotating shaft located inside the housing, a worm engaged with the bottom of the worm gear, one end of the worm protruding from one side of the housing and rotatably connected thereto, a connecting plate fixedly connected to one end of the rotating shaft protruding from the housing, a fixed shaft fixedly connected to one side of the connecting plate, and a meshing wheel that meshes with the chain rotatably connected to the side surface of the fixed shaft via a bearing.

[0006] Preferably, a connector is fixedly connected to the top side of the housing, and the connector and the top of the housing form a mounting groove for fitting the vehicle frame. A second fastening hole is provided inside the connector for bolts to pass through.

[0007] Preferably, a cover plate is fixedly connected to the side of the housing away from the connecting plate, and a fastening bolt is threadedly connected inside the cover plate. Internally threaded sleeves are fixedly connected to the four corners of the inner wall of one side of the housing, and a first fastening hole is opened inside the cover plate for the bolt to pass through.

[0008] Preferably, one end of the worm is rotatably connected to a bushing via a bearing, one side of the bushing is fixedly connected to the inner wall of one side of the housing, and a limiting ring is fixedly sleeved on the side surface of the worm to limit its movement.

[0009] Preferably, the side surface of the worm is provided with anti-slip grooves arranged in a circular array around the central axis of the worm, and the section of the worm with the anti-slip grooves abuts against the fastening bolt.

[0010] Preferably, the worm gear and the fastening bolt are both provided with an internal hexagonal groove at the end outside the housing for inserting an internal hexagonal wrench.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By adjusting the components, the angle of the two meshing wheels is changed, thereby applying forces in two directions to tighten the chain, or the angle of the two meshing wheels is reversed to loosen the chain, thus achieving a rapid adjustment effect. This avoids the cumbersome situation of needing to adjust the adjusters on both sides of the rear axle to keep the rear axle from tilting in the traditional adjustment method, thereby simplifying the adjustment process, improving adjustment efficiency, and also avoiding the situation of rear axle tilting caused by inaccurate adjustment.

[0012] Compared to adjusting the tightness with a single meshing wheel, when two meshing wheels change their angles simultaneously, a smaller deflection angle is required to achieve the adjustment effect. At the same time, the two meshing wheels are distributed vertically, making the chain more stable during transmission. The two meshing wheels distributed vertically can effectively constrain the chain and prevent it from falling off due to being too loose.

[0013] The angle of the two meshing wheels is adjusted by the worm gear driving the worm wheel. The worm wheel cannot actively drive the worm gear to rotate, thus locking in the reverse direction. This prevents the meshing wheels from being under stress for a long time, which could cause the shaft to reverse. The worm gear is then locked with fastening bolts to achieve a double-locking effect, thereby improving the stability of the regulator. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic cross-sectional view of the present invention. Figure 1 ; Figure 4 This is a schematic cross-sectional view of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the chain drive direction structure of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Connecting component; 2. Housing; 3. Cover plate; 4. Worm gear; 5. Worm wheel; 6. Rotating shaft; 7. Connecting plate; 8. Fixed shaft; 9. Meshing wheel; 10. Anti-slip groove; 11. Fastening bolt; 12. Socket hexagonal groove; 13. Internal threaded sleeve; 14. First fastening hole; 15. Second fastening hole; 16. Limiting ring; 17. Bushing; 18. Mounting groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This utility model provides a technical solution: such as Figures 1-5 The bidirectional fastening motorcycle chain adjuster shown includes a housing 2. Inside the housing 2 is an adjusting assembly for adjusting chain tension. The adjusting assembly includes a rotating shaft 6 rotatably connected inside the housing 2 via a bearing. One end of the rotating shaft 6 inside the housing 2 is fixedly connected to a worm gear 5. The bottom of the worm gear 5 is meshed with a worm 4. One end of the worm 4 protrudes from one side of the housing 2 and is rotatably connected thereto. One end of the rotating shaft 6 protruding from the housing 2 is fixedly connected to a connecting plate 7. One side of the connecting plate 7 is fixedly connected to a fixed shaft 8. The side surface of the fixed shaft 8 is rotatably connected to a meshing wheel 9 that meshes with the chain via a bearing.

[0018] like Figure 1 , Figure 2 and Figure 4 As shown, a connector 1 is fixedly connected to the top side of the housing 2. The connector 1 and the top of the housing 2 form a mounting groove 18 for adapting to the frame. A second fastening hole 15 is provided inside the connector 1 for bolts to pass through.

[0019] like Figure 1-5As shown, a cover plate 3 is fixedly connected to the side of the housing 2 away from the connecting plate 7. A fastening bolt 11 is threadedly connected inside the cover plate 3. Internally threaded sleeves 13 are fixedly connected to the four corners of the inner wall of one side of the housing 2. A first fastening hole 14 for the bolt to pass through is opened inside the cover plate 3. In use, the adjuster is installed on the frame by passing the bolt through the second fastening hole 15. The mounting groove 18 is adapted to the contour of the frame. Then, as needed, the worm 4 is rotated by an Allen wrench, so that the worm 4 drives the worm wheel 5, the rotating shaft 6 and the connecting plate 7 to rotate, thereby adjusting the angle of the two meshing wheels 9 around the rotating shaft 6. After adjusting the tightness of the chain by the two meshing wheels 9, the fastening bolt 11 is rotated so that the fastening bolt 11 moves closer to the worm 4 until one end of the fastening bolt 11 abuts against the surface of the worm 4 with the anti-slip groove 10, forming a fastening and completing the adjustment.

[0020] like Figure 3 and Figure 4 As shown, one end of the worm 4 is rotatably connected to a bushing 17 via a bearing. One side of the bushing 17 is fixedly connected to the inner wall of one side of the housing 2. A limiting ring 16 is fixedly sleeved on the side surface of the worm 4 to limit its movement.

[0021] like Figures 1-5 As shown, the side surface of the worm 4 is provided with anti-slip grooves 10 arranged in a circular array around the central axis of the worm 4. The section of the worm 4 with the anti-slip grooves 10 abuts against the fastening bolt 11. By adjusting the assembly, the angles of the two meshing wheels 9 are changed, thereby applying forces in two directions to tighten the chain, or the angles of the two meshing wheels 9 are reversed to loosen the chain, thus achieving a quick adjustment effect. This avoids the cumbersome situation of needing to adjust the adjusters on both sides of the rear axle to keep the rear axle from tilting in the traditional adjustment method, thereby simplifying the adjustment process, improving adjustment efficiency, and also avoiding the situation where the rear axle tilts due to inaccurate adjustment. Compared with adjusting the tightness of a single meshing wheel 9, this method is more efficient. Compared to other methods, when the two meshing wheels 9 change their angles synchronously, the required deflection angle is smaller to achieve the adjustment effect. At the same time, the vertical distribution of the two meshing wheels 9 makes the chain more stable during transmission. The vertically distributed meshing wheels 9 can effectively constrain the chain and prevent it from falling off due to excessive looseness. The worm gear 4 drives the worm wheel 5 to adjust the angle of the two meshing wheels 9. The worm wheel 5 cannot actively drive the worm gear 4 to rotate, thus locking in the reverse direction. This prevents the meshing wheels 9 from being subjected to force for a long time, which could cause the shaft 6 to reverse. The worm gear 4 is locked with the fastening bolt 11 to achieve a double-locking effect, thereby improving the stability of the regulator.

[0022] like Figure 2 , Figure 3 and Figure 4 As shown, the worm gear 4 and the fastening bolt 11 are both provided with an internal hexagonal slot 12 at the end outside the housing 2 for inserting an internal hexagonal wrench.

[0023] Working principle: In use, the adjuster is installed on the frame by bolting through the second fastening hole 15. The mounting slot 18 is adapted to the frame contour. Then, as needed, the worm 4 is rotated by an Allen wrench, which causes the worm 4 to drive the worm wheel 5, the shaft 6 and the connecting plate 7 to rotate, thereby adjusting the angle of the two meshing wheels 9 around the shaft 6. After adjusting the chain tension by the two meshing wheels 9, the fastening bolt 11 is rotated, which brings the fastening bolt 11 closer to the worm 4 until one end of the fastening bolt 11 abuts against the surface of the worm 4 with the anti-slip groove 10, forming a tight fit and completing the adjustment.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A two-way fastening motorcycle chain adjuster, comprising a housing (2), characterized in that: The housing (2) is provided with an adjustment assembly for adjusting the chain tension. The adjustment assembly includes a rotating shaft (6) rotatably connected to the housing (2) via a bearing. One end of the rotating shaft (6) located inside the housing (2) is fixedly connected to a worm gear (5). The bottom of the worm gear (5) is meshed with a worm (4). One end of the worm (4) extends out of one side of the housing (2) and is rotatably connected thereto. One end of the rotating shaft (6) extending out of the housing (2) is fixedly connected to a connecting plate (7). One side of the connecting plate (7) is fixedly connected to a fixed shaft (8). The side surface of the fixed shaft (8) is rotatably connected to a meshing wheel (9) that meshes with the chain via a bearing.

2. The bidirectional fastening motorcycle chain adjuster according to claim 1, characterized in that: A connector (1) is fixedly connected to the top side of the housing (2). The connector (1) and the top of the housing (2) form a mounting groove (18) for adapting the frame. A second fastening hole (15) is provided inside the connector (1) for bolts to pass through.

3. The bidirectional fastening motorcycle chain adjuster according to claim 1, characterized in that: A cover plate (3) is fixedly connected to the side of the housing (2) away from the connecting plate (7). A fastening bolt (11) is threadedly connected inside the cover plate (3). An internal threaded sleeve (13) is fixedly connected to the four corners of the inner wall of one side of the housing (2). A first fastening hole (14) for the bolt to pass through is opened inside the cover plate (3).

4. The bidirectional fastening motorcycle chain adjuster according to claim 1, characterized in that: One end of the worm (4) is rotatably connected to a bushing (17) via a bearing. One side of the bushing (17) is fixedly connected to the inner wall of one side of the housing (2). A limiting ring (16) is fixedly sleeved on the side surface of the worm (4) to limit its movement.

5. The bidirectional fastening motorcycle chain adjuster according to claim 1, characterized in that: The worm (4) has anti-slip grooves (10) arranged in a ring array along the central axis of the worm (4) on its side surface. The section of the worm (4) with the anti-slip grooves (10) abuts against the fastening bolt (11).

6. The bidirectional fastening motorcycle chain adjuster according to claim 5, characterized in that: The worm (4) and the fastening bolt (11) are both provided with an internal hexagonal groove (12) at the end outside the housing (2) for inserting an internal hexagonal wrench.

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