A shock-absorbing, geared electric bicycle

Abstract

This invention discloses a shock-absorbing and variable-speed electric bicycle, comprising: a front wheel, a rear wheel, and a frame; the frame is equipped with an auxiliary power unit, a pedal drive unit, a seat unit, and a handlebar unit; the seat unit has a tube, a locking sleeve, a spring, and an air valve; the outer side of the tube has a positioning protrusion and a pressure plate; the inner surface of the seat tube of the frame has a guide groove; the end face of the seat tube has an annular groove; the seat tube has multiple vent holes; and the air valve is located on the seat tube; one end of the spring is placed in the annular groove of the seat tube, and the other end is placed at the pressure plate; the tube is inserted into the seat tube; and the locking sleeve is fitted onto the pressure plate of the tube and threadedly connected to the seat tube. This invention uses a spring between the seat tube and the seat tube of the frame to achieve a shock-absorbing effect, and the tube and seat tube form an air chamber, further reducing shock and mitigating sway through multiple vent holes and the air valve, thereby improving riding comfort.

Description

Technical Field

[0001] This invention belongs to the field of bicycle technology, specifically, it relates to a shock-absorbing and geared bicycle. Background Technology

[0002] Riding a regular bicycle over speed bumps or on rough roads can be very uncomfortable due to the lack of shock absorbers, especially affecting the buttocks. This discomfort can be exacerbated for those with lower back problems. While existing bicycle seats have internal shock-absorbing springs, their effectiveness is limited, and the springs, after being compressed, rebound. Although ground vibrations are reduced, the body's up-and-down movement increases, impacting riding comfort. Some bicycle seats only have a support frame without any shock absorption. To improve the shock absorption and comfort of bicycle seats, a new type of bicycle with shock absorption and gears has been developed. Summary of the Invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a shock-absorbing and geared electric bicycle, which solves the problem of poor seat shock absorption comfort in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention discloses a shock-absorbing and gear-shifting electric bicycle, comprising: a front wheel, a rear wheel, and a frame; the frame is provided with an auxiliary power unit, a pedal drive unit, a seat unit, and a handlebar unit;

[0005] The seat unit has an insert tube, a locking sleeve, a spring, and an air valve. The outer side of the insert tube is provided with a positioning protrusion and a pressure plate. The inner surface of the upright tube of the vehicle frame is provided with a guide groove. The end face of the upright tube is provided with an annular groove. The upright tube is provided with multiple vent holes. The air valve is located on the upright tube. One end of the spring is placed in the annular groove of the upright tube, and the other end is placed at the pressure plate. The insert tube is inserted into the upright tube. The locking sleeve is sleeved on the pressure plate of the insert tube and threadedly connected to the upright tube.

[0006] Furthermore, the aforementioned air valve has an outer shell, a ball bearing, and a vent seat. The outer shell is hollow, with multiple round holes on one end face and a threaded hole on the other end. The outer surface of the outer shell has threads. The ball bearing is placed inside the outer shell. The vent seat is threaded to one end of the outer shell. The vent seat is cylindrical, with a through hole penetrating both ends. One end of the vent seat is in the shape of an inner cone, and the outer surface of the vent seat is provided with multiple vent grooves.

[0007] Furthermore, a spring positioning seat is provided on one side of the aforementioned pressure plate.

[0008] Furthermore, the aforementioned multiple vents are arranged in a linear interval from top to bottom.

[0009] Furthermore, one end of the aforementioned venting groove extends to the tail end face of the venting seat.

[0010] Compared with the prior art, this application can achieve the following technical effects:

[0011] This invention incorporates a spring between the seat tube and the frame tube to provide shock absorption. Furthermore, the seat tube and frame tube form an air chamber, which further reduces shock and sway through multiple vents and valves, thereby enhancing riding comfort.

[0012] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a schematic diagram of a vehicle seat unit according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram illustrating the cooperation between the insertion tube and the riser in an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the air valve according to an embodiment of the present invention;

[0017] Figure 4 This is a cross-sectional schematic diagram of the air valve according to an embodiment of the present invention.

[0018] Attached Figure

[0019] Insertion tube 1, locking sleeve 2, spring 3, air valve 4, positioning protrusion 5, pressure plate 6, riser 7, annular groove 8, vent hole 9, outer shell 10, ball bearing 11, vent seat 12, round hole 13, through hole 14, vent groove 15, spring positioning seat 16. Detailed Implementation

[0020] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0021] Please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of a vehicle seat unit according to an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the cooperation between the insertion tube and the riser in an embodiment of the present invention; Figure 3 This is a schematic diagram of the air valve according to an embodiment of the present invention; Figure 4This is a cross-sectional schematic diagram of the air valve according to an embodiment of the present invention. A shock-absorbing and gear-shifting electric bicycle includes: a front wheel, a rear wheel, and a frame; the frame is provided with an auxiliary power unit, a pedal drive unit, a seat unit, and a handlebar unit;

[0022] The seat unit has an insertion tube 1, a locking sleeve 2, a spring 3, and an air valve 4. The outer side of the insertion tube 1 is provided with a positioning protrusion 5 and a pressure plate 6. The inner surface of the upright tube 7 of the vehicle frame is provided with a guide groove. The end face of the upright tube 7 is provided with an annular groove 8. The upright tube 7 is provided with multiple vent holes 9. The air valve 4 is located on the upright tube 7. One end of the spring 3 is placed in the annular groove 8 of the upright tube 7, and the other end is placed at the pressure plate 6. The insertion tube 1 is inserted into the upright tube 7. The locking sleeve 2 is sleeved on the pressure plate 6 of the insertion tube 1 and threadedly connected to the upright tube 7.

[0023] The air valve 4 has an outer shell 10, a ball bearing 11, and a vent seat 12. The outer shell 10 is hollow. One end of the outer shell 10 has multiple round holes 13 for ventilation. The other end is a threaded hole with threads on its outer surface. The ball bearing 11 is placed in the outer shell 10. The vent seat 12 is threaded to one end of the outer shell 10. The vent seat 12 is cylindrical. A through hole 14 passes through both ends. One end of the vent seat 12 is in the shape of an inner cone. The outer surface of the vent seat 12 is provided with four circumferentially spaced ventilation grooves 15.

[0024] Operating process of air valve 4: The tail end of the riser 7 is closed. A seat is installed on the top of the insert 1. The insert 1 is inserted into the riser 7 with a small clearance. When encountering bumpy roads or speed bumps, the weight of the person will compress the spring 3. As the insert 1 continues to move downward, the air pressure in the air chamber formed by the insert 1 and the riser 7 will increase, thus preventing the insert 1 from moving downward quickly. To further improve comfort, five vent holes 9 are provided on the riser 7. The vent holes 9 are located at the top of the insert 1. During the compression stroke of tube 1, when the end of tube 1 is not blocking the first vent hole 9, the air pressure in the air chamber leaks out through the vent hole 9, and the downward speed of tube 1 is relatively fast. When the end of tube 1 blocks the first vent hole 9, the number of vent holes 9 decreases, the leakage of air pressure in the air chamber slows down, and the downward speed of tube 1 slows down. When the end of tube 1 blocks the second vent hole 9, the number of vent holes 9 decreases further, the leakage of air pressure in the air chamber slows down further, and the downward speed of tube 1 further decreases. The movement of the tube 1 slows down, and so on, thus achieving the function of slowly moving the tube 1 downward, reducing rapid up and down shaking and improving comfort; the air valve 4 is located in the air chamber, the outer shell 10 of the air valve 4 is threadedly connected to the hole on the riser 7, the ball 11 is placed in the outer shell 10, and the vent seat 12 is threadedly connected to the outer shell 10. When the tube 1 moves downward, some air pressure is released from the air valve 4. When the air pressure in the air chamber increases, the ball 11 is pushed by the airflow to the end of the vent seat 12 and blocks the through hole 14. The airflow can only be released from the vent groove 15. The vent seat 12 and the outer shell 10 can be rotated to adjust the opening size of the vent groove 15. The vent groove 15 is larger as it goes inward and smaller as it goes outward until it is completely closed. Adjustment can further slow down the downward movement of the tube 1; when the spring 3 rebounds and drives the tube 1 upward, the ball 11 in the air valve 4 disengages from the vent seat 12, the air intake in the air chamber increases, and the rebound speed is greater than the compression speed.

[0025] A spring positioning seat 16 is provided on one side of the pressure plate 6; multiple vent holes 9 are arranged linearly from top to bottom; one end of the vent groove 15 extends to the tail end face of the vent seat 12.

[0026] The present invention incorporates a spring 3 between the seat tube 1 and the frame tube 7 to provide shock absorption. The tube 1 and the frame tube 7 form an air chamber, which further reduces shock and sway through multiple air holes 9 and air valves 4, thereby improving riding comfort.

[0027] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A shock-absorbing, geared bicycle, comprising: include: Front wheels, rear wheels, and the vehicle's frame; The vehicle frame is equipped with an auxiliary power unit, a foot pedal drive unit, a seat unit, and a handlebar unit; The vehicle seat unit is characterized by having an insert tube, a locking sleeve, a spring, and an air valve. The outer side of the insert tube is provided with a positioning protrusion and a pressure plate. The inner surface of the upright tube of the vehicle frame is provided with a guide groove, and the end face of the upright tube is provided with an annular groove. The upright tube is provided with multiple vent holes, and the air valve is located on the upright tube. One end of the spring is placed in the annular groove of the upright tube, and the other end is placed at the pressure plate. The insert tube is inserted into the upright tube, and the locking sleeve is fitted onto the pressure plate of the insert tube and threadedly connected to the upright tube. The air valve has an outer shell, a ball bearing, and a vent seat. The outer shell is hollow, with multiple round holes on one end face and a threaded hole on the other end. Its outer surface is threaded. The ball bearing is placed in the outer shell. The vent seat is threadedly connected to one end of the outer shell. The vent seat is cylindrical, with a through hole penetrating both end faces. One end of the vent seat is in an inner conical shape, and the outer surface of the vent seat is provided with multiple vent grooves.

2. The shock-absorbing and gear-shifting bicycle as described in claim 1, characterized in that, A spring positioning seat is provided on one side of the pressure plate.

3. The shock-absorbing and gear-shifting bicycle as described in claim 1, characterized in that, The multiple vent holes are arranged linearly at intervals from top to bottom.

4. The shock-absorbing and gear-shifting bicycle as described in claim 1, characterized in that, One end of the ventilation groove extends to the tail end face of the ventilation seat.

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