A buffer assembly applied to a scooter

Abstract

This utility model discloses a shock absorption assembly for scooters, including a frame, a front wheel at one end of the frame, a rotatable connection between the frame and a rocker arm, a rear wheel on the frame, a rear support on the outer side of the rear wheel, a fixed connection between the rocker arm and one end of a connecting crossbar, a fixed connection between the frame and one end of an upper crossbar, a rotatable connection between the outer side of the connecting crossbar and the bottom end of a sleeve via a bearing sleeve, a spring sleeved on the outer side of the sleeve, a rotatable connection between the upper crossbar and the top end of a connecting block via a hinge plate, a fixed connection between the connecting block and one end of a damping rod, a fixed connection between the damping rod and one end of a damping plate, and an adjusting cylinder on the outer side of the connecting block. This utility model utilizes the rotation of the rocker arm and the damping plate to compress and convert the impact force of the oil in the reservoir into a buffer. By using multiple buffering mechanisms, including the damping plate and piston plate, the shock absorption effect of the scooter is improved, enhancing the comfort of the rear wheel. The damping plate within the connecting cylinder can shorten the length of the sleeve and damping rod, as well as the buffering stroke.

Description

Technical Field

[0001] This utility model relates to the field of scooter technology, specifically to a shock absorption assembly applied to scooters. Background Technology

[0002] A scooter is a vehicle that falls between a motorcycle and a car, and is a popular mode of transportation. Scooters are further divided into many types according to their form and purpose, such as children's scooters, scooters for the disabled, gasoline scooters, folding scooters, and three-wheeled scooters.

[0003] The cushioning and shock absorption of scooters are particularly important for the user's riding experience. Most existing scooter cushioning assemblies achieve this by using external shock-absorbing springs on a telescopic rod. This results in a long cushioning stroke and a single cushioning method, relying solely on the damping rod inside the telescopic rod for cushioning, which affects the actual use effect. Utility Model Content

[0004] The purpose of this invention is to provide a shock absorption assembly for scooters to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a buffer assembly for a scooter, comprising a frame, a front wheel at one end of the frame, the frame being rotatably connected to a rocker arm, a rear wheel on the frame, a rear support on the outer side of the rear wheel, the rocker arm being fixedly connected to one end of a connecting crossbar, the frame being fixedly connected to one end of an upper crossbar, the outer side of the connecting crossbar being rotatably connected to the bottom end of a sleeve via a bearing sleeve, a spring being sleeved on the outer side of the sleeve, the upper crossbar being rotatably connected to the top end of a connecting block via a hinge plate, the connecting block being fixedly connected to one end of a damping rod, one end of the damping rod being fixedly connected to a damping plate, an adjusting cylinder being provided on the outer side of the connecting block, a liquid storage chamber being provided inside the sleeve, the outer side of the sleeve being fixedly connected to a connecting cylinder body, a rotating cylinder being provided on the outer side of the connecting cylinder body, the rotating cylinder being fixedly connected to one end of a connecting rod, the other end of the connecting rod being fixedly connected to an adjusting plate, and a piston plate being provided inside the connecting cylinder body.

[0006] Preferably, the inner wall of the sleeve is slidably fitted with the damping plate, the sleeve and the connecting cylinder are fixed by welding through the base, the base has an oil hole inside, and the liquid storage chamber is connected to the buffer chamber through the oil hole.

[0007] Preferably, the connecting block has a threaded groove on its outer side, and the connecting block is threadedly connected to the outer side of the adjusting cylinder through the threaded groove. One end of the spring abuts against the adjusting cylinder, and the other end of the spring abuts against the limiting ring. The outer side of the sleeve is fixedly connected to the limiting ring.

[0008] Preferably, a threaded groove is formed on the outer side of the connecting cylinder, the connecting cylinder is threadedly connected to the rotating cylinder through the threaded groove, and the inside of the connecting cylinder is slidably connected to the piston plate.

[0009] Preferably, one end of the connecting rod extends into the interior of the connecting cylinder and is fixedly connected to the adjusting plate, and the adjusting plate slides within the interior of the connecting cylinder.

[0010] Preferably, the piston plate divides the interior of the connecting cylinder into upper and lower cavities, the lower cavity being a buffer cavity and the upper cavity being an air cavity, the air cavity being located between the adjusting plate and the piston plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses the vibration of the rear wheel to drive the rocker arm to rotate, which in turn drives the damping rod to slide inside the sleeve. The damping plate squeezes the oil in the storage chamber into the buffer chamber, which drives the piston plate to move in the connecting cylinder and compress the air chamber, thereby effectively buffering and converting the impact force. The damping plate and piston plate are used to improve the shock absorption effect of the scooter and enhance the comfort of the rear wheel. The damping plate in the connecting cylinder can shorten the length of the sleeve and the damping rod and the buffer stroke.

[0013] 2. This utility model also adjusts the spring length by rotating the adjusting cylinder, which moves the adjusting cylinder outside the connecting block. The intensity of the buffer and shock absorption is adjusted by adjusting the spring compression. At the same time, by rotating the rotating cylinder outside the connecting cylinder, the adjusting plate moves inside the connecting cylinder through the connecting rod, and the volume of the air cavity is adjusted, thereby changing the air cavity pressure and further adjusting the buffering degree of the piston plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a structural diagram showing the connection between the rear wheel and the rocking bracket of this utility model;

[0016] Figure 3 This is a cross-sectional view of the internal structure of the sleeve of this utility model;

[0017] Figure 4 This is a cross-sectional view of the internal structure of the connecting cylinder of this utility model.

[0018] In the diagram: 1. Frame; 2. Front wheel; 3. Cradle; 4. Rear wheel; 5. Rear support; 6. Connecting crossbar; 7. Upper crossbar; 8. Sleeve; 9. Spring; 10. Connecting block; 11. Damping rod; 12. Damping plate; 13. Adjusting cylinder; 14. Liquid reservoir; 15. Connecting cylinder body; 16. Rotating cylinder; 17. Connecting rod; 18. Adjusting plate; 19. Piston plate; 20. Buffer chamber; 21. Air chamber. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a buffer assembly for a scooter, including a frame 1, a front wheel 2 at one end of the frame 1, the frame 1 being rotatably connected to a rocker arm 3 via a hinge shaft, a rear wheel 4 on the frame 1, the outer side of the rear wheel 4 being rotatably connected to a rear support 5, the rocker arm 3 being welded and fixed to one end of a connecting crossbar 6, the frame 1 being welded and fixed to one end of an upper crossbar 7, the outer side of the connecting crossbar 6 being rotatably connected to the bottom end of a sleeve 8 via a bearing sleeve, the connecting crossbar 6 and the upper crossbar 7 being located at opposite ends of the sleeve 8, one end of the upper crossbar 7 being fixedly connected to the side of the frame 1, and a spring being sleeved on the outer side of the sleeve 8. 9. The upper crossbar 7 is rotatably connected to the top of the connecting block 10 via a hinge plate. The connecting block 10 is welded and fixed to one end of the damping rod 11, and one end of the damping rod 11 is welded and fixed to the damping plate 12. The outer side of the connecting block 10 is threadedly connected to the adjusting cylinder 13. A liquid storage chamber 14 is provided inside the sleeve 8, and the liquid storage chamber 14 is filled with buffer oil. The outer side of the sleeve 8 is welded and fixed to the connecting cylinder body 15. A rotating cylinder 16 is provided on the outer side of the connecting cylinder body 15. The rotating cylinder 16 is welded and fixed to one end of the connecting rod 17, and the other end of the connecting rod 17 is welded and fixed to the adjusting plate 18. A piston plate 19 is provided inside the connecting cylinder body 15.

[0021] The inner wall of the sleeve 8 slides in fit with the damping plate 12. The sleeve 8 and the connecting cylinder 15 are fixed by welding to the base. An oil hole is opened inside the base, and the liquid storage chamber 14 is connected to the buffer chamber 20 through the oil hole. When the rear wheel 4 passes over a bumpy road, the rear wheel 4 will drive the rocker arm 3 to swing, which will cause the connecting crossbar 6 to move the sleeve 8, and further drive the damping plate 12 to move inside the liquid storage chamber 14. This allows the buffer oil inside the liquid storage chamber 14 to enter the buffer chamber 20 through the oil hole of the base, pushing the piston plate 19 to move upward. The movement of the damping plate 12 and the piston plate 19, in conjunction with the buffer oil, provides buffering and shock absorption.

[0022] A threaded groove is formed on the outer side of the connecting block 10, which is threadedly connected to the outer side of the adjusting cylinder 13 through the threaded groove. One end of the spring 9 abuts against the adjusting cylinder 13, and the other end of the spring 9 abuts against the limiting ring. The outer side of the sleeve 8 is welded and fixed to the limiting ring. The spring 9 enhances the overall buffering effect, and at the same time, the elastic force of the spring 9 pushes the damping plate 12 and the sleeve 8 to return to their original positions. By rotating the adjusting cylinder 13 to move outside the connecting block 10, the compression degree of the spring 9 can be adjusted, thereby adjusting the buffering strength of the spring 9.

[0023] A threaded groove is formed on the outer side of the connecting cylinder 15, which is threadedly connected to the rotating cylinder 16. The connecting cylinder 15 is slidably connected to the piston plate 19 inside. The piston plate 19 moves inside the connecting cylinder 15, thereby compressing the space of the air chamber 21 and increasing the internal pressure to achieve a buffering effect. The increased pressure further pushes the piston plate 19 downward, thereby pushing the oil inside the buffer chamber 20 back into the reservoir chamber 14, achieving reset and facilitating repeated shock absorption.

[0024] One end of the connecting rod 17 extends into the interior of the connecting cylinder 15 and is welded and fixed to the adjusting plate 18. The adjusting plate 18 slides within the connecting cylinder 15. The piston plate 19 divides the interior of the connecting cylinder 15 into upper and lower cavities. The lower cavity is a buffer cavity 20, and the upper cavity is an air cavity 21. The air cavity 21 is located between the adjusting plate 18 and the piston plate 19.

[0025] In another embodiment, the damping plate 12 has several tapered through holes, and the sleeve 8 is filled with a liquid storage cavity 14. When the damping rod 11 pushes the damping plate 12 to move inside the sleeve 8, the buffer oil in the liquid storage cavity 14 provides a buffering effect through the tapered through holes without interfering with the movement of the damping plate 12. At the same time, some oil can be squeezed into the buffer cavity 20 to push the piston plate 19 to move for buffering.

[0026] Working principle: During use, the rear support 5 is connected and fixed to the frame 1 with anti-loosening bolts. At the same time, the rear support 5 is connected and fixed to the outside of the upper crossbar 7 with anti-loosening bolts. When the rear wheel 4 vibrates on a bumpy road, the rear wheel 4 drives the rocker arm 3 to swing, which in turn drives the upper crossbar 7 to make the damping rod 11 push the damping plate 12 to move inside the sleeve 8. This allows the oil in the reservoir 14 to enter the buffer chamber 20 through the oil hole, thereby pushing the piston plate 19 to move upward inside the connecting cylinder 15. At the same time, it compresses the air chamber 21, further increasing the pressure in the air chamber 21. This pushes the piston plate 19 to move in the opposite direction and returns the oil in the buffer chamber 20 to the buffer chamber 20. In conjunction with the spring 9, the piston plate 19 and the damping plate 12 are reset. Through the movement of the oil, the damping plate 12 and the piston plate 19, the impact force is buffered and converted, improving the riding comfort of the scooter.

[0027] 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.

[0028] 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 buffer assembly for use in scooters, comprising a frame (1), characterized in that: The frame (1) has a front wheel (2) at one end, the frame (1) is rotatably connected to the rocker arm (3), the frame (1) has a rear wheel (4), the rear wheel (4) has a rear support (5) on its outer side, the rocker arm (3) is fixedly connected to one end of the connecting crossbar (6), the frame (1) is fixedly connected to one end of the upper crossbar (7), the outer side of the connecting crossbar (6) is rotatably connected to the bottom end of the sleeve (8) through a bearing sleeve, the outer side of the sleeve (8) is fitted with a spring (9), the upper crossbar (7) is rotatably connected to the top end of the connecting block (10) through a hinge plate, the connecting block (10) The connecting block (10) is fixedly connected to one end of the damping rod (11), and one end of the damping rod (11) is fixedly connected to the damping plate (12). An adjusting cylinder (13) is provided on the outside of the connecting block (10). A liquid storage chamber (14) is provided inside the sleeve (8). The outside of the sleeve (8) is fixedly connected to the connecting cylinder body (15). A rotating cylinder (16) is provided on the outside of the connecting cylinder body (15). One end of the rotating cylinder (16) is fixedly connected to one end of the connecting rod (17). The other end of the connecting rod (17) is fixedly connected to the adjusting plate (18). A piston plate (19) is provided inside the connecting cylinder body (15).

2. The shock absorber assembly for a scooter according to claim 1, characterized in that: The inner wall of the sleeve (8) is slidably fitted with the damping plate (12). The sleeve (8) and the connecting cylinder (15) are fixed by welding through the base. An oil hole is opened inside the base. The liquid storage chamber (14) is connected to the buffer chamber (20) through the oil hole.

3. The shock absorber assembly for a scooter according to claim 1, characterized in that: The connecting block (10) has a threaded groove on its outer side. The connecting block (10) is threadedly connected to the outer side of the adjusting cylinder (13) through the threaded groove. One end of the spring (9) abuts against the adjusting cylinder (13), and the other end of the spring (9) abuts against the limiting ring. The outer side of the sleeve (8) is fixedly connected to the limiting ring.

4. A shock absorber assembly for a scooter according to claim 1, characterized in that: The connecting cylinder (15) has a threaded groove on its outer side. The connecting cylinder (15) is threadedly connected to the rotating cylinder (16) through the threaded groove. The connecting cylinder (15) is slidably connected to the piston plate (19) inside.

5. A shock absorber assembly for a scooter according to claim 1, characterized in that: One end of the connecting rod (17) extends into the inside of the connecting cylinder (15) and is fixedly connected to the adjusting plate (18). The adjusting plate (18) slides in cooperation with the inside of the connecting cylinder (15).

6. A buffer assembly for a scooter according to claim 1, characterized in that: The piston plate (19) divides the interior of the connecting cylinder (15) into an upper cavity and a lower cavity. The lower cavity is a buffer cavity (20), and the upper cavity is an air cavity (21). The air cavity (21) is located between the adjusting plate (18) and the piston plate (19).

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