An adjustable motorcycle frame

Abstract

The utility model discloses an adjustable motorcycle frame, it includes main beam, the top of main beam is provided with the saddle, and one end fixed mounting of main beam has the outer tube, and the inside movable sleeve of outer tube has the inner tube, and the fixed mounting of fixed plate has outside outer tube. Through above -mentioned structure, the adjustable motorcycle frame of this technical scheme, the movable sleeve of inner tube in outer tube, cooperate three mounting round holes on outer tube, second spring, limit axle and steel ball, and a plurality of limit holes on inner tube, and the rider can according to own shoulder and arm stretch demand, press the limit ring and make the steel ball on limit axle separate from the limit hole of inner tube, can promote the inner tube to slide to the suitable height in the outer tube, and the steel ball is fixed in the corresponding limit hole under the action of second spring, and the handlebar height is adjusted easily, to avoid higher rider bending and riding or the height of shorter rider arm needs excessive stretching.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and in particular to an adjustable motorcycle frame. Background Technology

[0002] The motorcycle frame is the core load-bearing and connecting component of a motorcycle, equivalent to the motorcycle's "skeleton." It is mainly used to fix key components such as the engine, transmission system, suspension system, handlebars, and seat.

[0003] During the production and assembly phase of a motorcycle frame, technicians install components such as the engine, fuel tank, and battery onto pre-reserved support points on the frame according to the vehicle design drawings. High-strength bolts are used to achieve a rigid connection, ensuring that the components do not shift during riding. The suspension system and handlebar assembly are then assembled, with the handlebars connected to the fixed sleeve at the front of the frame via the seat tube. This completes the overall assembly. However, the handlebar connection to the frame is fixed, and the handlebar height is set at the factory and cannot be adjusted according to the rider's habits. When taller riders use a frame with low handlebars, they need to bend over to grip the handlebars, which can easily lead to neck and shoulder muscle tension, lower back pain, and riding fatigue over long periods. Conversely, shorter riders using a frame with high handlebars need to overextend their arms, affecting steering agility and potentially increasing riding risks due to improper force application. Therefore, to solve this problem, we have proposed an adjustable motorcycle frame. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an adjustable motorcycle frame. The steel ball is fixed by being inserted into the corresponding limiting hole under the action of the second spring, and the handlebar height can be easily adjusted to avoid taller riders bending over or shorter riders having to overextend their arms. The seat height is lowered to ensure that the rider's feet land stably. At the same time, the elastic support of the third spring can adapt to the hip pressure of riders of different weights and reduce fatigue during long rides.

[0005] This utility model also provides an adjustable motorcycle frame, including a main beam, a seat on top of the main beam, an outer tube fixedly installed at one end of the main beam, an inner tube movably fitted inside the outer tube, a fixing plate fixedly installed on the outside of the outer tube, a first spring fixedly installed above the fixing plate, a limiting collar fixedly installed above the first spring, three mounting holes opened inside the outer tube, a second spring fixedly installed inside the mounting holes, a fixing ring fixedly installed at one end of the second spring, a limiting shaft fixedly installed inside the fixing ring, and steel balls movably fitted at both ends of the limiting shaft.

[0006] According to the present invention, an adjustable motorcycle frame has three positioning plates fixedly installed inside the outer tube, and three limiting grooves are opened inside the inner tube. One end of the positioning plate is fitted into the limiting groove opened inside the inner tube.

[0007] According to the present invention, an adjustable motorcycle frame is provided with a plurality of limiting holes inside the inner tube. One end of the limiting shaft has a steel ball extending into the limiting hole in the inner tube. The outer surface of the other end of the limiting shaft has a steel ball in close contact with the inner wall of the limiting collar, and the limiting collar is located outside the outer tube.

[0008] According to the present invention, an adjustable motorcycle frame is provided, wherein two support plates are fixedly installed on both sides of the main beam, and a limiting sleeve is fixedly installed on the upper part of each support plate. A fixed shaft is movably fitted inside each limiting sleeve, and the upper end of the fixed shaft is fixedly connected to the seat.

[0009] According to the present invention, an adjustable motorcycle frame is provided, wherein a positioning ring is fixedly installed inside the limiting sleeve, and the positioning ring limits the fixed shaft when the fixed shaft moves up and down inside the limiting sleeve.

[0010] According to the present invention, an adjustable motorcycle frame is provided, wherein a positioning sleeve is fixedly installed above the main beam, and a third spring is fixedly installed above the main beam, and the third spring is disposed inside the positioning sleeve.

[0011] According to the present invention, an adjustable motorcycle frame is provided, wherein a lower pressure plate is fixedly installed above the third spring, a threaded rod is provided above the lower pressure plate, a threaded sleeve is threadedly connected to the outside of the threaded rod, and the threaded sleeve is fixedly connected to the seat.

[0012] According to the present invention, an adjustable motorcycle frame is provided, wherein a limiting plate is fixedly installed inside the positioning sleeve, and the limiting plate limits the threaded rod when the threaded rod rotates and rises inside the positioning sleeve. Beneficial effects

[0013] 1. The adjustable motorcycle frame of this technical solution features an inner tube that is movable inside the outer tube. With the help of three mounting holes, a second spring, a limiting shaft, and a steel ball on the outer tube, as well as multiple limiting holes on the inner tube, the rider can press the limiting collar to disengage the steel ball on the limiting shaft from the limiting hole in the inner tube according to their own shoulder and arm extension needs. This allows the inner tube to slide inside the outer tube to a suitable height. Then, under the action of the second spring, the steel ball is locked into the corresponding limiting hole to complete the fixation. This allows for easy adjustment of the handlebar height, preventing taller riders from bending over or shorter riders from having to overextend their arms.

[0014] 2. The third spring and lower pressure plate inside the positioning sleeve above the main beam, together with the threaded sleeve and threaded rod fixed to the seat, allow the rider to rotate the threaded rod to raise or lower the seat, ensuring that the rider's feet land stably. At the same time, the elastic support of the third spring can adapt to the hip pressure of riders of different weights, reducing fatigue during long rides. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a perspective view of an adjustable motorcycle frame according to the present invention.

[0017] Figure 2 This is a structural diagram of the inner tube of an adjustable motorcycle frame according to the present invention.

[0018] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a structural diagram of a limiting sleeve for an adjustable motorcycle frame according to the present invention;

[0020] Figure 5 This is a structural diagram of a positioning sleeve for an adjustable motorcycle frame according to the present invention.

[0021] Legend:

[0022] 1. Main beam; 2. Seat; 3. Outer tube; 4. Inner tube; 5. Fixing plate; 6. First spring; 7. Limiting collar; 8. Mounting hole; 9. Second spring; 10. Fixing ring; 11. Limiting shaft; 12. Steel ball; 13. Positioning plate; 14. Support plate; 15. Limiting sleeve; 16. Fixing shaft; 17. Positioning ring; 18. Positioning sleeve; 19. Third spring; 20. Lower pressure plate; 21. Threaded rod; 22. Threaded sleeve; 23. Limiting plate. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-5This utility model discloses an adjustable motorcycle frame, comprising a main beam 1 for easy motorcycle assembly, a seat 2 on top of the main beam 1 for rider comfort, an outer tube 3 fixedly mounted at one end of the main beam 1 for easy adjustment of an inner tube 4, an inner tube 4 movably fitted inside the outer tube 3 for mounting handlebars, a fixing plate 5 fixedly mounted on the outside of the outer tube 3 for supporting a first spring 6, a first spring 6 fixedly mounted above the fixing plate 5 for resetting a limiting collar 7, and a limiting collar 7 fixedly mounted above the first spring 6 for limiting one end of a limiting shaft 11. The steel ball 12 contacts and compresses the second spring 9, causing the steel ball 12 at the other end of the limiting shaft 11 to enter the limiting hole of the inner tube 4. The outer tube 3 has three mounting holes 8 inside, which facilitate the movement of the limiting shaft 11. The second spring 9 is fixedly installed inside the mounting holes 8. The elastic reset effect of the second spring 9 can reset the fixing ring 10. The fixing ring 10 is fixedly installed at one end of the second spring 9, which facilitates the compression of the second spring 9. The limiting shaft 11 is fixedly installed inside the fixing ring 10, which facilitates the operation of the steel ball 12. The steel balls 12 are movably fitted at both ends of the limiting shaft 11, which facilitates the fixing of the inner tube 4.

[0025] Specifically, three positioning plates 13 are fixedly installed inside the outer tube 3, and three limiting grooves are opened inside the inner tube 4. One end of the positioning plate 13 is fitted into the limiting groove opened inside the inner tube 4. When the positioning plate 13 is fitted into the limiting groove, it can be limited along with the inner tube 4 to prevent the inner tube 4 from shifting and affecting subsequent work.

[0026] Specifically, the inner tube 4 has multiple limiting holes. One end of the limiting shaft 11, the steel ball 12, extends into the limiting hole of the inner tube 4. When the steel ball 12 extends into the limiting hole, it can limit the inner tube 4. The outer surface of the steel ball 12 at the other end of the limiting shaft 11 is in close contact with the inner wall of the limiting collar 7. When the steel ball 12 at the other end contacts the limiting collar 7, it can compress the second spring 9. The limiting collar 7 is located outside the outer tube 3. When the limiting collar 7 is located outside the outer tube 3, it is convenient for the rider to control the limiting collar 7.

[0027] Specifically, two support plates 14 are fixedly installed on both sides of the main beam 1. The support plates 14 can support the limiting sleeves 15. The limiting sleeves 15 are fixedly installed on the top of the support plates 14. The limiting sleeves 15 can guide the fixed shaft 16. The fixed shaft 16 is movably fitted inside the limiting sleeves 15. The upper end of the fixed shaft 16 is fixedly connected to the seat 2. The fixed shaft 16 can support and install the seat 2.

[0028] Specifically, a positioning ring 17 is fixedly installed inside the limiting sleeve 15, and when the fixed shaft 16 moves up and down inside the limiting sleeve 15, the positioning ring 17 limits the fixed shaft 16, thereby preventing the fixed shaft 16 from moving excessively.

[0029] Specifically, a positioning sleeve 18 is fixedly installed on the top of the main beam 1. The positioning sleeve 18 can guide the threaded rod 21. A third spring 19 is fixedly installed on the top of the main beam 1. The elastic effect of the third spring 19 can reduce the fatigue of the rider. The third spring 19 is set inside the positioning sleeve 18. When the third spring 19 is set inside the positioning sleeve 18, it can be easily protected.

[0030] Specifically, a pressure plate 20 is fixedly installed above the third spring 19. The pressure plate 20 can press down the third spring 19. A threaded rod 21 is provided above the pressure plate 20. The height of the seat 2 can be easily adjusted by using the threaded rod 21 in conjunction with the threaded sleeve 22. The threaded sleeve 22 is connected to the external thread of the threaded rod 21. The threaded sleeve 22 is fixedly connected to the seat 2. When the threaded sleeve 22 is fixedly connected to the seat 2, it is easy to compress the third spring 19 and distribute the pressure on the rider's buttocks.

[0031] Specifically, a limiting plate 23 is fixedly installed inside the positioning sleeve 18, and the limiting plate 23 limits the threaded rod 21 when it rotates and rises inside the positioning sleeve 18. The limiting plate 23 limits the threaded rod 21 to prevent excessive adjustment when using the threaded rod 21.

[0032] Working principle: When the rider adjusts the handlebar height according to their needs, pressing down on the limiting collar 7 stretches the first spring 6, causing the steel ball 12 at that end to move the limiting shaft 11 outwards towards the mounting hole 8. At this time, the steel ball 12 at the other end of the limiting shaft 11 disengages from the limiting hole inside the inner tube 4, releasing the locking state between the inner tube 4 and the outer tube 3. After unlocking, the rider can push the inner tube 4 to slide axially along the positioning plate 13 inside the outer tube 3 until the handlebar height reaches the desired position. At this time, releasing the limiting collar 7 allows the inner wall to contact the outside of the steel ball 12 at one end of the limiting shaft 11, squeezing the second spring 9 to move the fixing ring 10 and the limiting shaft 11 inwards, causing the steel ball 12 at the other end of the limiting shaft 11 to re-engage into the corresponding limiting hole in the inner tube 4. Simultaneously, the first spring 6 pushes the limiting collar 7 to reset, completing the adjustment and locking of the handlebar height. When the rider needs to adjust the seat height 2 to ensure... When both feet land smoothly, rotating the threaded rod 21 causes the threaded sleeve 22 to move axially, which in turn moves the seat 2. Simultaneously, the fixed shaft 16 moves synchronously with the seat 2 within the limiting sleeve 15 above the support plate 14. A lower pressure plate 20 is fixedly installed above the third spring 19, contacting the lower part of the threaded rod 21. When the seat 2 is adjusted, the pressure on the buttocks is transmitted through the seat 2, threaded sleeve 22, and threaded rod 21 to the lower pressure plate 20, compressing the third spring 19 inside the positioning sleeve 18. The elasticity of the third spring 19 adapts to the rider's weight, providing elastic support and effectively distributing pressure on the buttocks, reducing fatigue during long rides, and adapting to riders of different weights.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An adjustable motorcycle frame, comprising a main beam (1), characterized in that: A seat (2) is provided above the main beam (1). An outer tube (3) is fixedly installed at one end of the main beam (1). An inner tube (4) is movably fitted inside the outer tube (3). A fixing plate (5) is fixedly installed on the outside of the outer tube (3). A first spring (6) is fixedly installed above the fixing plate (5). A limiting collar (7) is fixedly installed above the first spring (6). Three mounting holes (8) are opened inside the outer tube (3). A second spring (9) is fixedly installed inside the mounting holes (8). A fixing ring (10) is fixedly installed at one end of the second spring (9). A limiting shaft (11) is fixedly installed inside the fixing ring (10). Steel balls (12) are movably fitted at both ends of the limiting shaft (11).

2. The adjustable motorcycle frame according to claim 1, characterized in that, The outer tube (3) has three positioning plates (13) fixedly installed inside, and the inner tube (4) has three limiting grooves inside. One end of the positioning plate (13) is fitted into the limiting groove inside the inner tube (4).

3. An adjustable motorcycle frame according to claim 1, characterized in that, The inner tube (4) has multiple limiting holes inside. One end of the limiting shaft (11) has a steel ball (12) extending into the limiting hole in the inner tube (4). The outer surface of the steel ball (12) at the other end of the limiting shaft (11) is in close contact with the inner wall of the limiting collar (7), and the limiting collar (7) is located outside the outer tube (3).

4. An adjustable motorcycle frame according to claim 1, characterized in that, Two support plates (14) are fixedly installed on both sides of the main beam (1). A limiting sleeve (15) is fixedly installed on the top of each support plate (14). A fixed shaft (16) is movably fitted inside each limiting sleeve (15). The upper end of the fixed shaft (16) is fixedly connected to the seat (2).

5. An adjustable motorcycle frame according to claim 4, characterized in that, The limiting sleeve (15) is fixedly installed with a positioning ring (17), and when the fixed shaft (16) moves up and down inside the limiting sleeve (15), the positioning ring (17) limits the fixed shaft (16).

6. An adjustable motorcycle frame according to claim 1, characterized in that, A positioning sleeve (18) is fixedly installed above the main beam (1), and a third spring (19) is fixedly installed above the main beam (1), with the third spring (19) located inside the positioning sleeve (18).

7. An adjustable motorcycle frame according to claim 6, characterized in that, A lower pressure plate (20) is fixedly installed above the third spring (19), and a threaded rod (21) is provided above the lower pressure plate (20). A threaded sleeve (22) is connected to the external thread of the threaded rod (21), and the threaded sleeve (22) is fixedly connected to the seat (2).

8. An adjustable motorcycle frame according to claim 6, characterized in that, The positioning sleeve (18) is fixedly installed with a limiting plate (23), and the limiting plate (23) limits the threaded rod (21) when the threaded rod (21) rotates and rises inside the positioning sleeve (18).

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