Dual shock absorbing electric motorcycle front fork frame

Abstract

The utility model relates to double shock -proof's electric motorcycle front fork frame, the utility model discloses when using can enhance the comfort of electric motorcycle riding, reduce the discomfort brought by vibration, along with the reduction of vibration also can protect the equipment on electric motorcycle, avoid the equipment to produce loosening or damage due to vibration, and the utility model discloses the rotation of the inner hexagonal screw head, control sliding block sliding on the screw rod, to drive the push rod to move on the different step groove of adjusting groove, lifting piece drives connecting rod and push block to move upwards, and push block promotes the limit block, and limit block synchronous drive piston two moves, and then adjust the distance size that piston two moves to hollow chamber, and then adjust how much the outflow hole exposes, to adjust the size of oil output, the utility model discloses push rod and screw rod install in the lower cavity of cylinder, when the screw rod rotates, therefore will not have the situation that hydraulic oil leaks.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle front fork frame technology, and in particular to a dual-shock-absorbing electric motorcycle front fork frame. Background Technology

[0002] Electric motorcycles convert electrical energy into mechanical energy through an electric motor, which then drives the wheels and working devices via a transmission device or directly. To improve driving comfort, electric motorcycles are often equipped with shock absorbers on the front fork frame, reducing discomfort caused by severe bumps when riding on uneven roads.

[0003] For example, Chinese patent application CN202223395840.1 discloses a dual-shock-absorbing electric vehicle front fork. Specifically, an adjusting bolt is installed above the oil outlet on the surface of the connecting plate. The bottom end of the adjusting bolt passes through the connecting plate and extends into the cavity, where a blocking block matching the oil outlet is fixedly connected. When the wheel experiences bumps, the piston rod drives the first piston upwards, providing initial shock absorption via a damping spring. The first piston then compresses the hydraulic oil in the oil reservoir, which is then introduced into the oil tank through the oil outlet and connecting pipe, absorbing the upward thrust of the piston rod and achieving dual shock absorption. When there are many passengers in the electric vehicle, their weight increases. Rotating the adjusting bolt moves the blocking block, adjusting the area of ​​the oil outlet and thus regulating the amount of hydraulic oil flowing through it. This allows for free adjustment based on the rider's weight. However, this design has the following technical problems: Since the adjusting bolt is threaded onto the upper end of the connecting plate, when passing through bumpy sections of road, the pressure inside the sleeve increases when the piston rod extends or retracts. When pushing the blocking block, hydraulic oil may leak from the threaded holes of the bolt and the connecting plate, resulting in a reduced shock absorption and buffering effect. It is evident that the above structure poses a risk of hydraulic oil leakage during actual use. Utility Model Content

[0004] To address the problem of hydraulic oil leakage risk in practical use of the prior art as described in the background section, this utility model provides the following technical solution: A dual-shock-absorbing electric motorcycle front fork frame, including a steering column; The lower end of the steering column is equipped with a front fork arm, and the lower end of the front fork arm is equipped with a spring and a shock-absorbing assembly for shock absorption of the electric motorcycle.

[0005] The shock absorption assembly includes a piston rod and a cylinder. An adjusting component one is installed inside the cylinder. An adjusting component two for positioning the adjusting component one is installed at the lower end of the adjusting component one. A push rod for controlling the lifting and lowering of the adjusting component two is installed inside the cylinder. A lead screw for controlling the movement of the push rod is installed at the lower end of the push rod.

[0006] The adjusting component includes a piston, an oil inlet is installed at the upper end of the piston, an oil outlet is opened at the upper end of the oil inlet, a conical insert is installed on the outer wall of the lower end of the oil inlet, and a spring is installed inside the cylinder to push the piston upward.

[0007] Furthermore, a retaining ring for limiting the movement of the spring is sleeved on the outside of the cylinder, and bolts are installed on the outside of the retaining ring.

[0008] Furthermore, a piston that extends and retracts within the cylinder is mounted at the lower end of the piston rod, and a sealing ring is mounted on the outside of the piston.

[0009] Furthermore, the cylinder includes a partition plate 1 for limiting the oil passage, a sealing ring 2 is installed in the middle of the partition plate 1, and a slot that fits into the conical insert is provided at the lower end of the middle of the partition plate 1.

[0010] Furthermore, a partition plate 2 is installed at the lower end of the inner cavity of the cylinder, a limiting cylinder for limiting the spring 2 is installed at the upper end of the partition plate 2, a slider that slides on the lead screw is installed at the lower end of the push rod, and an internal hexagonal screw is installed at one end of the lead screw.

[0011] Furthermore, a sealing ring three is installed on the outside of the piston two, a sealing ring four is installed on the top of the conical insert, and a limiting block for cooperating with the limiting cylinder to limit the spring two is installed at the middle of the lower end of the piston two.

[0012] Furthermore, the second adjusting component includes a lifting block, the upper end of which is installed with a connecting rod that extends and retracts inside the limiting cylinder, the upper end of which is equipped with a push block for pushing the limiting block, and the bottom of the lifting block is provided with an adjusting groove for positioning the second piston, and the push rod slides within the adjusting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: The spring pushes the piston, causing it to move towards the partition plate, achieving a pressure relief and buffering effect. This dual shock absorption enhances the riding comfort of the electric motorcycle and reduces discomfort caused by vibration. Simultaneously, the reduced vibration also protects the equipment on the electric motorcycle, preventing loosening or damage due to vibration. Furthermore, this invention controls the slider to slide on the lead screw by rotating the internal hexagonal screw head, which in turn moves the push rod on different steps of the adjustment groove. The lifting block moves the connecting rod and push block upwards, pushing the limit block, which in turn moves the piston, thus adjusting the distance the piston moves into the hollow cavity. This, in turn, adjusts the amount of oil outlet exposed, thereby regulating the oil output. Because the push rod and lead screw are installed in the lower cavity of the cylinder, there is no hydraulic oil leakage when the lead screw rotates. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the shock absorption component of this utility model; Figure 3 This is a schematic diagram of the structure of the adjusting component of this utility model; Figure 4 This is a schematic diagram of the structure of the second adjusting component of this utility model; Figure 5 This utility model Figure 2 Enlarged view of point A.

[0015] The following is a list of component names represented by the various reference numerals in the attached figures: 10-Steering column, 11-Front fork arm, 20-Spring 1, 100-Shock absorber assembly, 101-Retaining ring, 102-Bolt, 110-Piston rod, 111-Piston, 112-Seal 1, 120-Cylinder, 121-Baffle 1, 122-Baffle 2, 123-Seal 2, 124-Slot, 125-Limit sleeve, 126-Spring 2, 127-Push rod, 1271-Slide Block, 128-lead screw, 1281-internal hexagonal screw head, 130-adjusting component one, 131-piston two, 132-sealing ring three, 133-oil pipe, 134-oil inlet, 135-oil outlet, 136-conical insert, 137-sealing ring four, 138-limiting block, 140-adjusting component two, 141-lifting block, 142-adjusting groove, 143-connecting rod, 144-push block. Detailed Implementation

[0016] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0017] Please see Figures 1-5 This utility model provides a dual shock absorption electric motorcycle front fork frame, including a steering column 10, a front fork arm 11 installed at the lower end of the steering column 10, and a spring-20 and a shock-absorbing component 100 installed at the lower end of the front fork arm 11 for shock absorption of the electric motorcycle. Through the cooperation of the shock-absorbing component 100 and the spring-20, the electric motorcycle achieves a shock absorption effect when traveling on bumpy road sections, thereby increasing the driving comfort of the driver.

[0018] The shock absorption assembly 100 includes a piston rod 110 and a cylinder 120. A retaining ring 101 for limiting the movement of spring 20 is sleeved on the outside of the cylinder 120. A bolt 102 is mounted on the outside of the retaining ring 101, and a threaded hole for the bolt 102 to be screwed into is simultaneously opened on the outside of the cylinder 120, so that the retaining ring 101 is fixed on the cylinder 120 and can continuously limit the movement of spring 20. A piston 111 that extends and retracts inside the cylinder 120 is fixedly mounted on the lower end of the piston rod 110. A sealing ring 112 is mounted on the outside of the piston 111 to prevent hydraulic oil leakage.

[0019] The cylinder 120 is equipped with an adjusting component 130, which includes a piston 131. A sealing ring 132 for limiting the hydraulic oil is installed on the outside of the piston 131, so that the hydraulic oil is between the piston 111 and the piston 131.

[0020] The upper end of piston 131 is fixedly equipped with an oil passage cylinder 133. The upper end of the oil passage cylinder 133 is provided with multiple oil inlet holes 134, and the lower end of the oil passage cylinder 133 is provided with multiple oil outlet holes 135. A conical insert 136 is fixedly installed on the outer wall of the lower end of the oil passage cylinder 133. The outer diameter of the upper end of the conical insert 136 is smaller than the outer diameter of the lower end of the conical insert 136. A sealing ring 137 is installed on the top of the conical insert 136.

[0021] The cylinder 120 includes a partition 121 for limiting the oil passage 133, and a partition 122 is installed at the lower end of the inner cavity of the cylinder 120. The partition 121 and the partition 122 divide the inner cavity of the cylinder 120 into an upper cavity, a middle cavity and a lower cavity, and the piston 111 slides in the upper cavity. The spring 126 is installed in the middle cavity.

[0022] A sealing ring 123 is installed in the middle of the partition 121. A slot 124 is provided at the lower middle part of the partition 121 to fit with the conical insert 136. The spring 126 pushes the conical insert 136 to move upward, so that the outer wall of the conical insert 136 fits with the inner wall of the slot 124, thereby preventing hydraulic oil from flowing down.

[0023] The cylinder 120 is equipped with a spring 126 for pushing the piston 131 upward. The lower end of the piston 131 is fixedly equipped with a limiting block 138 for limiting the spring 126 in conjunction with the limiting cylinder 125. The spring 126 is sleeved on the outside of the limiting block 138, so that the spring 126 remains stable. The pushing of the piston 131 by the spring 126 facilitates the reset of the adjusting member 130.

[0024] A limiting sleeve 125 for limiting the spring 126 is fixedly installed at the upper end of the partition 2 122. The lower end of the spring 126 is sleeved on the limiting sleeve 125. The limiting sleeve 125 and the limiting block 138 work together to limit the spring 126, so that the spring 126 remains stable in the hollow cavity and will not shift due to bumps.

[0025] The lower end of the first adjusting component 130 is equipped with an second adjusting component 140 for positioning the first adjusting component 130. The second adjusting component 140 includes a lifting block 141, which is located in the lower cavity of the cylinder 120. The upper end of the lifting block 141 is fixedly installed with a telescopic connecting rod 143 inside the limiting cylinder 125. The upper end of the connecting rod 143 is fixedly installed with a push block 144 for pushing the limiting block 138. The bottom of the lifting block 141 is provided with an adjusting groove 142 for positioning the second piston 131. The adjusting groove 142 is a stepped groove with a depth of multiple grooves decreasing sequentially. The upper wall of the stepped groove is set with an inclined side, and the inclined direction is towards the lower outer wall of the lifting block 141 to prevent the push rod 127 from sliding down to the lower groove due to vibration.

[0026] Inside the cylinder 120, a push rod 127 is installed to control the lifting and lowering of the adjusting component 140. The push rod 127 slides within the adjusting groove 142. A lead screw 128 is installed at the lower end of the push rod 127 to control its movement. A slider 1271 that slides on the lead screw 128 is fixedly installed at the lower end of the push rod 127. One end of the lead screw 128 is fixedly installed with an internal hexagonal head 1281. The internal hexagonal head 1281 is a circular block with a regular hexagonal groove in its center. This allows the internal hexagonal head 1281 to be rotated using an internal hexagonal wrench, which in turn rotates the lead screw 128. This causes the slider 1271 to move the push rod 127 within the adjusting groove 142, thereby adjusting the position of the push rod 127 in different stepped grooves within the adjusting groove 142. This adjusts the amount of oil outlet 135 exposed within the hollow cavity, thus regulating the oil output.

[0027] This invention first achieves shock absorption through the combination of a conventional damping component 100 and a spring 20. When vibration occurs, the sealing ring 112 pushes the hydraulic oil in the upper cavity of the cylinder 120 from the inlet hole 134 into the oil passage cylinder 133. When the partition 121 closes the outlet hole 135, the pressure in the upper cavity causes the oil passage cylinder 133 to move the piston 131 downwards. The outlet hole 135 moves from the middle of the partition 121 to the slot 124. The hydraulic oil in the oil passage cylinder 133 enters the hollow cavity through the outlet hole 135 and pushes the piston 131 downwards. The spring 126 pushes the piston 131, causing it to move towards the partition 121, achieving a pressure relief and buffering effect. This achieves dual shock absorption, enhancing the comfort of riding the electric motorcycle and reducing the discomfort caused by vibration. This invention is suitable for use in electric motorcycles. Simultaneously, with reduced vibration, it also protects the equipment, preventing loosening or damage due to vibration. Furthermore, by rotating the internal hexagonal screw head 1281, the slider 1271 slides on the lead screw 128, causing the push rod 127 to move on different steps of the adjusting groove 142. The lifting block 141 drives the connecting rod 143 and the push block 144 upwards. The push block 144 pushes the limiting block 138, which in turn drives the piston 131 to move, thereby adjusting the distance the piston 131 moves into the hollow cavity, and consequently adjusting the amount of oil outlet 135 exposed, thus regulating the oil output. Since the push rod 127 and lead screw 128 are installed in the lower cavity of the cylinder 120, there is no hydraulic oil leakage when the lead screw 128 rotates.

[0028] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A dual-shock-absorbing electric motorcycle front forkframe, including a steering column (10), characterized in that: The lower end of the steering column (10) is equipped with a front fork arm (11), and the lower end of the front fork arm (11) is equipped with a spring (20) for shock absorption of the electric motorcycle and a shock-absorbing assembly (100). The shock absorption assembly (100) includes a piston rod (110) and a cylinder (120). An adjusting component one (130) is installed inside the cylinder (120). An adjusting component two (140) for positioning the adjusting component one (130) is installed at the lower end of the adjusting component one (130). A push rod (127) for controlling the lifting and lowering of the adjusting component two (140) is installed inside the cylinder (120). A lead screw (128) for controlling the movement of the push rod (127) is installed at the lower end of the push rod (127). The first adjusting component (130) includes a second piston (131), an oil passage cylinder (133) is installed at the upper end of the second piston (131), an oil inlet hole (134) is opened at the upper end of the oil passage cylinder (133), an oil outlet hole (135) is opened at the lower end of the oil passage cylinder (133), a conical insert (136) is installed on the outer wall of the lower end of the oil passage cylinder (133), and a second spring (126) for pushing the second piston (131) upward is installed inside the cylinder (120).

2. The dual anti-shock electric motorcycle front fork frame according to claim 1, characterized in that: The cylinder (120) is fitted with a retaining ring (101) for limiting the spring (20), and a bolt (102) is installed on the outside of the retaining ring (101).

3. The dual anti-shock electric motorcycle front fork frame according to claim 1, characterized in that: The piston rod (110) is fitted with a piston (111) that extends and retracts within the cylinder (120) at its lower end, and a sealing ring (112) is fitted on the outside of the piston (111).

4. The dual anti-shock electric motorcycle front fork frame according to claim 1, characterized in that: The cylinder (120) includes a partition (121) for limiting the oil passage (133), a sealing ring (123) is installed in the middle of the partition (121), and a slot (124) is provided at the lower end of the middle of the partition (121) to fit with the conical insert (136).

5. The dual anti-shock electric motorcycle front fork frame according to claim 1, characterized in that: The lower end of the inner cavity of the cylinder (120) is equipped with a partition plate two (122), the upper end of the partition plate two (122) is equipped with a limiting cylinder (125) for limiting the spring two (126), the lower end of the push rod (127) is equipped with a slider (1271) that slides on the lead screw (128), and one end of the lead screw (128) is equipped with an internal hexagonal screw head (1281).

6. The dual anti-shock electric motorcycle front fork frame according to claim 5, characterized in that: A sealing ring three (132) is installed on the outside of the piston two (131), a sealing ring four (137) is installed on the top of the conical insert (136), and a limiting block (138) is installed at the lower middle of the piston two (131) to limit the spring two (126) in conjunction with the limiting cylinder (125).

7. The electric motorcycle front forkframe with dual shock absorption according to claim 6, characterized in that: The second adjusting component (140) includes a lifting block (141), the upper end of which is installed in the telescopic connecting rod (143) inside the limiting cylinder (125). The upper end of the connecting rod (143) is equipped with a push block (144) for pushing the limiting block (138). The bottom of the lifting block (141) is provided with an adjusting groove (142) for positioning the second piston (131), and the push rod (127) slides in the adjusting groove (142).

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