Novel front fork structure

Abstract

The utility model discloses a novel front fork structure, which relates to the technical field of front fork structures and comprises a fork shoulder component, a head tube component is arranged at the top of the fork shoulder component, piston rod components are arranged at two ends of the bottom of the fork shoulder component, and outer foot sleeve components are sleeved on the outer sides of the bottom ends of the piston rod components. A fork bridge is fixedly installed at the top between the two outer foot sleeve assemblies, the piston rod assembly comprises a piston pipe, each outer foot sleeve assembly comprises a piston sleeve, the piston sleeve is arranged on the outer side of the bottom end of the piston pipe in a sleeving mode, an outer foot fork is fixedly installed on one side of the bottom end of the piston sleeve, and a heightening welding foot is arranged at the joint of the outer foot fork and the piston sleeve. A mounting groove is formed in the bottom of the outer foot fork; according to the outer foot fork, the effects of increasing strength and saving materials can be achieved, the buffering stroke cannot be shortened during installation of the outer foot fork, and the outer foot fork has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of front fork structures, in particular to a novel front fork structure. Background Technique

[0002] The front fork structure is a component connecting the front wheel and the vehicle body. Since it is divided into left and right arms to support the front wheel and looks like a fork, it is commonly called a front fork. The front fork component is located in the front part of the scooter. Its upper end is connected to the handlebar component, the frame component is matched with the front tube, and the lower end is matched with the front axle component to form the steering system of the scooter. The working sequence of the front fork should be: encountering an obstacle - the front fork is compressed - reaching the extreme point - being rebounded to the original length (the speed of rebound is affected by damping) - the bouncing system work ends. Based on the above, the inventor found the following problems: The outer foot fork for fixedly installing the front wheel of the current front fork is usually fixedly installed at the bottom of the piston sleeve. The length of the front fork on the scooter usually needs to be limited within a certain range. The outer foot fork fixedly installed at the bottom of the piston sleeve will affect the buffering stroke distance of the front fork and is not convenient to use.

[0003] Therefore, in view of this, research and improvement are carried out on the existing structure and its deficiencies, and a novel front fork structure is provided with the expectation of achieving a more practical value. Content of the Utility Model

[0004] The purpose of the utility model is to provide a novel front fork structure to solve the problems proposed in the above background technique. A novel front fork structure includes a fork shoulder assembly. A head tube assembly is provided at the top of the fork shoulder assembly. At both ends of the bottom of the fork shoulder assembly, piston rod assemblies are provided. An outer foot sleeve assembly is sleeved outside the bottom end of the piston rod assembly. A fork bridge is fixedly installed at the top between the two outer foot sleeve assemblies. The piston rod assembly includes a piston tube. The outer foot sleeve assembly includes a piston sleeve. The piston sleeve is sleeved outside the bottom end of the piston tube. An outer foot fork is fixedly installed on one side of the bottom end of the piston sleeve. A heightening welding foot is provided at the connection between the outer foot fork and the piston sleeve. An installation groove is opened at the bottom of the outer foot fork.

[0005] By adopting the above technical solution, through the setting of the head tube assembly, it is convenient to pass through the frame and be fixedly connected to the handlebar, enabling the front wheel to turn. At both ends of the bottom of the fork shoulder assembly, there are piston rod assemblies, and an outer foot sleeve assembly is sleeved outside the bottom end of the piston rod assembly, which is convenient for the piston rod assembly and the outer foot sleeve assembly to form a buffer mechanism. The outer foot sleeve assembly is convenient for fixedly installing the front wheel. A fork bridge is fixedly installed at the top between the two outer foot sleeve assemblies, which is convenient for fixedly installing the mudguard and can play a role in strengthening and supporting. At the connection between the outer fork and the piston sleeve, there is a raised welding foot, which is convenient for fixedly connecting the outer fork and the piston sleeve, so that the installation of the outer fork will not shorten the buffer stroke, and the raised welding foot can play a role in increasing strength and saving materials. An installation groove is opened at the bottom of the outer fork, which is convenient for fixedly installing the front wheel.

[0006] Further, shock absorption mounting holes are provided at both ends of the fork shoulder assembly, the top end of the piston tube passes through the shock absorption mounting holes, and a head bolt is fixedly installed at the top of the piston tube.

[0007] By adopting the above technical solution, since the top end of the piston tube passes through the shock absorption mounting holes and a head bolt is fixedly installed at the top of the piston tube, it is convenient to fixedly connect the piston rod assembly and the fork shoulder assembly.

[0008] Further, a buffer spring is fixedly installed inside the piston tube, and a stretching buffer pad is fixedly installed at the bottom inside the piston tube.

[0009] By adopting the above technical solution, through the setting of the stretching buffer pad, it is convenient to provide buffer when the piston rod assembly and the outer foot sleeve assembly are stretched, which is beneficial to improving the service life.

[0010] Further, a fixing screw is fixedly installed in the middle of the bottom end of the piston sleeve, a spring rod is fixedly installed at the top of the fixing screw, and a compression buffer pad is provided outside the bottom end of the spring rod.

[0011] By adopting the above technical solution, through the setting of the compression buffer pad, it is convenient to provide buffer when the piston rod assembly and the outer foot sleeve assembly are compressed, which is beneficial to improving the service life.

[0012] Further, the top end of the spring rod is arranged inside the piston tube, the top of the spring rod is slidably connected to the bottom of the piston tube, and the top of the spring rod is fixedly connected to the bottom of the buffer spring.

[0013] By adopting the above technical solution, through the sliding connection between the top of the spring rod and the bottom of the piston tube and the fixed connection between the top of the spring rod and the bottom of the buffer spring, it is convenient for the impact force received during the driving of the scooter to be transmitted to the buffer spring through the spring rod.

[0014] Furthermore, an oil seal is fixedly installed at the top of the piston sleeve. The oil seal is sleeved outside the piston tube, and the oil seal is slidably connected to the piston tube.

[0015] By adopting the above technical solution, since the oil seal is sleeved outside the piston tube and the oil seal is slidably connected to the piston tube, it is convenient to fill damping oil inside the piston sleeve. The oil seal prevents the damping oil from leaking, and the viscosity of the damping oil provides a damping effect, thereby achieving a buffering effect.

[0016] Furthermore, a head tube mounting hole is provided in the middle of the fork shoulder assembly. The head tube assembly includes a head tube rod. A knurled portion is provided on the outer side of the bottom end of the head tube rod. The knurled portion is inserted inside the head tube mounting hole, and the knurled portion is fixedly connected to the head tube mounting hole. By adopting the above technical solution, since the knurled portion is inserted inside the head tube mounting hole and the knurled portion is fixedly connected to the head tube mounting hole, it is convenient to fixedly connect the head tube assembly and the fork shoulder assembly.

[0017] Furthermore, positioning holes are provided on both sides of the top end of the head tube rod, and a connection hole is provided in the middle of one side of the head tube rod. By adopting the above technical solution, since positioning holes are provided on both sides of the top end of the head tube rod and a connection hole is provided in the middle of one side of the head tube rod, it is convenient to fixedly connect the device to the frame and the handlebar.

[0018] Furthermore, the fork bridge includes a fork bridge body. Mudguard screw holes are provided in the middle of the bottom end and at both ends of the bottom of the fork bridge body. By adopting the above technical solution, since mudguard screw holes are provided in the middle of the bottom end and at both ends of the bottom of the fork bridge body, it is convenient to fixedly connect the mudguard to the device.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the setting of the head tube assembly, it is convenient to pass through the frame and be fixedly connected to the handlebar, enabling the front wheel to turn. Since piston rod assemblies are provided at both ends of the bottom of the fork shoulder assembly, and an outer foot sleeve assembly is sleeved on the outer side of the bottom end of the piston rod assembly, it is convenient for the piston rod assembly and the outer foot sleeve assembly to form a buffer mechanism. The outer foot sleeve assembly is convenient for fixedly installing the front wheel. Since a fork bridge is fixedly installed at the top between the two outer foot sleeve assemblies, it is convenient to fixedly install the mudguard and can play a certain role in strengthening and supporting. Since a heightening welding foot is provided at the connection between the outer fork and the piston sleeve, it is convenient to fixedly connect the outer fork and the piston sleeve, so that the installation of the outer fork will not shorten the buffering stroke, and the heightening welding foot can play a role in increasing strength and saving materials. Since an installation groove is provided at the bottom of the outer fork, it is convenient to fixedly install the front wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a sectional view of a novel front fork structure of the present utility model;

[0021] Figure 2This is the front view of a kind of electric scooter of the present utility model;

[0022] Figure 3 This is the sectional view of a kind of electric scooter of the present utility model;

[0023] Figure 4 This is the top view of a kind of electric scooter of the present utility model;

[0024] Figure 5 This is the front view of the head tube assembly of the present utility model.

[0025] In the figure: 101, fork shoulder assembly; 10101, head tube mounting hole; 10102, shock absorber mounting hole; 102, head tube assembly; 10201, head tube rod; 10202, positioning hole; 10203, connection hole; 10204, knurled part; 103, piston rod assembly; 10301, piston tube; 10302, door head bolt; 10303, buffer spring; 10304, tensile buffer pad; 104, outer foot sleeve assembly; 10401, piston sleeve; 10402, oil seal; 10403, fixing screw; 10404, outer foot fork; 10405, mounting groove; 10406, compression buffer pad; 10407, spring rod; 105, fork bridge; 10501, fork bridge body; 10502, mudguard screw hole. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1 - 5, the present utility model provides a technical solution: a novel front fork structure, including a fork shoulder assembly 101. A head tube assembly 102 is provided at the top of the fork shoulder assembly 101. Through the setting of the head tube assembly 102, it is convenient to pass through the frame and be fixedly connected to the handlebar, enabling the front wheel to turn. At both ends of the bottom of the fork shoulder assembly 101, there are piston rod assemblies 103. An outer foot sleeve assembly 104 is sleeved outside the bottom end of the piston rod assembly 103. Through the arrangement that there are piston rod assemblies 103 at both ends of the bottom of the fork shoulder assembly 101 and an outer foot sleeve assembly 104 is sleeved outside the bottom end of the piston rod assembly 103, it is convenient for the piston rod assembly 103 and the outer foot sleeve assembly 104 to form a buffer mechanism. The outer foot sleeve assembly 104 is convenient for fixedly installing the front wheel. At the top between the two outer foot sleeve assemblies 104, there is a fork bridge 105 fixedly installed. Through the arrangement that there is a fork bridge 105 fixedly installed at the top between the two outer foot sleeve assemblies 104, it is convenient for fixedly installing a mudguard and can play a role in strengthening and supporting to a certain extent. The piston rod assembly 103 includes a piston tube 10301, and the outer foot sleeve assembly 104 includes a piston sleeve 10401. The piston sleeve 10401 is sleeved outside the bottom end of the piston tube 10301. At one side of the bottom end of the piston sleeve 10401, there is an outer foot fork 10404 fixedly installed. At the connection between the outer foot fork 10404 and the piston sleeve 10401, there is a raised welding foot 10408. Through the arrangement that there is a raised welding foot 10408 at the connection between the outer foot fork 10404 and the piston sleeve 10401, it is convenient to fixedly connect the outer foot fork 10404 and the piston sleeve 10401, so that the installation of the outer foot fork 10404 will not shorten the buffer stroke, and the raised welding foot 10408 can play a role in increasing strength and saving materials. An installation groove 10405 is opened at the bottom of the outer foot fork 10404. Through the arrangement that an installation groove 10405 is opened at the bottom of the outer foot fork 10404, it is convenient to fixedly install the front wheel.

[0028] Among them, shock absorption installation holes 10102 are provided at both ends of the fork shoulder assembly 101. The top end of the piston tube 10301 passes through the shock absorption installation holes 10102, and a head bolt 10302 is fixedly installed at the top of the piston tube 10301. Through the arrangement that the top end of the piston tube 10301 passes through the shock absorption installation holes 10102 and a head bolt 10302 is fixedly installed at the top of the piston tube 10301, it is convenient to fixedly connect the piston rod assembly 103 and the fork shoulder assembly 101.

[0029] Among them, a buffer spring 10303 is fixedly installed inside the piston tube 10301, and a stretching buffer pad 10304 is fixedly installed at the inner bottom of the piston tube 10301. Through the setting of the stretching buffer pad 10304, it is convenient to provide buffering when the piston rod assembly 103 and the outer foot sleeve assembly 104 are stretched, which is beneficial to improving the service life.

[0030] Among them, a fixing screw 10403 is fixedly installed in the middle of the bottom end of the piston sleeve 10401. A spring rod 10407 is fixedly installed on the top of the fixing screw 10403. A compression buffer pad 10406 is arranged on the outer side of the bottom end of the spring rod 10407. Through the arrangement of the compression buffer pad 10406, it is convenient to provide buffering when the piston rod assembly 103 and the outer foot sleeve assembly 104 are compressed, which is beneficial to improving the service life.

[0031] Among them, the top end of the spring rod 10407 is arranged inside the piston tube 10301. The top of the spring rod 10407 is slidably connected to the bottom of the piston tube 10301. The top of the spring rod 10407 is fixedly connected to the bottom of the buffer spring 10303. Through the sliding connection between the top of the spring rod 10407 and the bottom of the piston tube 10301, and the fixed connection between the top of the spring rod 10407 and the bottom of the buffer spring 10303, it is convenient for the impact force received during the scooter driving process to be transmitted to the buffer spring 10303 through the spring rod 10407.

[0032] Among them, an oil seal 10402 is fixedly installed on the top of the piston sleeve 10401. The oil seal 10402 is sleeved on the outside of the piston tube 10301. The oil seal 10402 is slidably connected to the piston tube 10301. Through the oil seal 10402 being sleeved on the outside of the piston tube 10301 and the oil seal 10402 being slidably connected to the piston tube 10301, it is convenient to fill damping oil inside the piston sleeve 10401. The oil seal 10402 prevents the damping oil from leaking, and the viscosity of the damping oil provides a damping effect, thus playing a buffering role.

[0033] Among them, a head tube mounting hole 10101 is provided in the middle of the fork shoulder assembly 101. The head tube assembly 102 includes a head tube rod 10201. A knurled part 10204 is arranged on the outer side of the bottom end of the head tube rod 10201. The knurled part 10204 is inserted into the head tube mounting hole 10101. The knurled part 10204 is fixedly connected to the head tube mounting hole 10101. Through the knurled part 10204 being inserted into the head tube mounting hole 10101 and the knurled part 10204 being fixedly connected to the head tube mounting hole 10101, it is convenient to fixedly connect the head tube assembly 102 and the fork shoulder assembly 101.

[0034] Among them, positioning holes 10202 are provided on both sides of the top end of the head tube rod 10201. A connection hole 10203 is provided in the middle of one side of the head tube rod 10201. Through the positioning holes 10202 being provided on both sides of the top end of the head tube rod 10201 and the connection hole 10203 being provided in the middle of one side of the head tube rod 10201, it is convenient to fixedly connect the device to the frame and the handlebar.

[0035] Among them, the fork bridge 105 includes a fork bridge body 10501. Mud tile screw holes 10502 are provided in the middle of the bottom end and at both ends of the bottom of the fork bridge body 10501. By providing the mud tile screw holes 10502 in the middle of the bottom end and at both ends of the bottom of the fork bridge body 10501, it is convenient to fixedly connect the mudguard with the device.

[0036] Specifically, the working principle of this new front fork structure: When in use, the knurled part 10204 is inserted into the head tube mounting hole 10101, and the knurled part 10204 is fixedly connected with the head tube mounting hole 10101, which is convenient to fixedly connect the head tube assembly 102 with the fork shoulder assembly 101. By providing positioning holes 10202 on both sides of the top end of the head tube rod 10201 and a connection hole 10203 in the middle of one side of the head tube rod 10201, it is convenient to fixedly connect the device with the frame and the handlebar. The top end of the piston tube 10301 passes through the shock absorber mounting hole 10102, and a head bolt 10302 is fixedly installed at the top of the piston tube 10301, which is convenient to fixedly connect the piston rod assembly 103 with the fork shoulder assembly 101. By providing the stretching buffer pad 10304, it is convenient to provide buffering when the piston rod assembly 103 and the outer foot sleeve assembly 104 are stretched, which is beneficial to improving the service life. By providing the compression buffer pad 10406, it is convenient to provide buffering when the piston rod assembly 103 and the outer foot sleeve assembly 104 are compressed, which is beneficial to improving the service life. The top of the spring rod 10407 is slidably connected with the bottom of the piston tube 10301, and the top of the spring rod 10407 is fixedly connected with the bottom of the buffer spring 10303, which is convenient for the impact force received during the scooter driving process to be transmitted to the buffer spring 10303 through the spring rod 10407. The oil seal 10402 is sleeved on the outside of the piston tube 10301, and the oil seal 10402 is slidably connected with the piston tube 10301, which is convenient to fill damping oil inside the piston sleeve 10401. The oil seal 10402 prevents the damping oil from leaking, and the viscosity of the damping oil provides a damping effect, thus playing a buffering effect. By providing a raised welding foot 10408 at the connection between the outer foot fork 10404 and the piston sleeve 10401, it is convenient to fixedly connect the outer foot fork 10404 with the piston sleeve 10401, so that the installation of the outer foot fork 10404 will not shorten the buffering stroke, and the raised welding foot 10408 can play a role in increasing strength and saving materials. By providing an installation groove 10405 at the bottom of the outer foot fork 10404, it is convenient to fixedly install the front wheel. By providing mud tile screw holes 10502 in the middle of the bottom end and at both ends of the bottom of the fork bridge body 10501, it is convenient to fixedly connect the mudguard with the device.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A new type of front fork structure, characterized in that: The invention comprises a fork shoulder assembly (101), wherein a head tube assembly (102) is arranged on the top of the fork shoulder assembly (101), piston rod assemblies (103) are arranged at both ends of the bottom of the fork shoulder assembly (101), an outer foot sleeve assembly (104) is sleeved on the outer side of the bottom end of the piston rod assembly (103), a fork bridge (105) is fixedly installed on the top between the two outer foot sleeve assemblies (104), the piston rod assembly (103) comprises a piston tube (10301), the outer foot sleeve assembly (104) is sleeved on the outer side of the bottom end of the piston rod assembly (103), and a fork bridge (105) is fixedly installed on the top between the two outer foot sleeve assemblies (104). The sleeve assembly (104) includes a piston sleeve (10401), wherein the piston sleeve (10401) is sleeved on the outer side of the bottom end of the piston tube (10301), an external foot fork (10404) is fixedly installed on one side of the bottom end of the piston sleeve (10401), a heightened welding foot (10408) is provided at the connection between the external foot fork (10404) and the piston sleeve (10401), and a mounting groove (10405) is provided at the bottom of the external foot fork (10404).

2. A novel front fork structure according to claim 1, characterized in that: Shock-absorbing mounting holes (10102) are provided at both ends of the fork shoulder assembly (101), the top end of the piston tube (10301) passes through the shock-absorbing mounting hole (10102), and a door head bolt (10302) is fixedly installed on the top of the piston tube (10301).

3. A novel front fork structure according to claim 2, characterized in that: A buffer spring (10303) is fixedly installed inside the piston tube (10301), and a stretch buffer pad (10304) is fixedly installed on the inner bottom of the piston tube (10301).

4. A novel front fork structure according to claim 3, characterized in that: A fixing screw (10403) is fixedly installed in the middle of the bottom end of the piston sleeve (10401), a spring rod (10407) is fixedly installed on the top of the fixing screw (10403), and a compression buffer pad (10406) is provided on the outer side of the bottom end of the spring rod (10407).

5. A novel front fork structure according to claim 4, characterized in that: The top end of the spring rod (10407) is arranged inside the piston tube (10301), the top end of the spring rod (10407) is slidably connected to the bottom end of the piston tube (10301), and the top end of the spring rod (10407) is fixedly connected to the bottom end of the buffer spring (10303).

6. A novel front fork structure according to claim 5, characterized in that: An oil seal (10402) is fixedly installed on the top of the piston sleeve (10401), and the oil seal (10402) is sleeved on the outside of the piston tube (10301), and the oil seal (10402) is slidably connected to the piston tube (10301).

7. A novel front fork structure according to claim 1, characterized in that: A head pipe mounting hole (10101) is provided in the middle of the fork crown assembly (101); the head pipe assembly (102) comprises a head pipe rod (10201); a knurled portion (10204) is provided on the outer side of the bottom end of the head pipe rod (10201); the knurled portion (10204) is inserted into the head pipe mounting hole (10101), and the knurled portion (10204) is fixedly connected to the head pipe mounting hole (10101).

8. A novel front fork structure according to claim 7, characterized in that: Positioning holes (10202) are provided on both sides of the top end of the head tube rod (10201), and a connecting hole (10203) is provided in the middle of one side of the head tube rod (10201).

9. A novel front fork structure according to claim 1, characterized in that: The fork bridge (105) comprises a fork bridge body (10501), and masonry screw holes (10502) are provided in the middle of the bottom end and at both ends of the bottom end of the fork bridge body (10501).

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