Motorcycle head support structure

Abstract

The invention belongs to the technical field of motorcycle safety devices, and particularly relates to a motorcycle head support structure which comprises a front fork, a shock absorber, a middle shaft and a handlebar. The shock absorbers are installed at two positions of the bottom of the front fork, and the middle shaft is located in the middle of the top of the front fork and used for being connected with a frame. When a person drives the motorcycle at a low speed, the controller controls the regulating valve to be opened completely, and the steering sensitivity of the motorcycle during low-speed driving is maintained; when a person drives the motorcycle at a high speed, the controller controls the flow of the hydraulic oil in the oil pipe to be reduced through the adjusting valve, the swing speed of the handlebar and the front fork in the high-speed driving process is slowed down, the front fork can automatically adjust the steering speed according to the driving speed of the motorcycle, the high-speed steering speed of the motorcycle is limited, and meanwhile the safety of the motorcycle is improved. The steering sensitivity of the motorcycle during low-speed driving is maintained, the use convenience of the motorcycle is improved, and therefore the practicability is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of motorcycle safety devices, in particular to a motorcycle head bracket structure. Background Art

[0002] There are many kinds of motorcycle components, including engine, frame, front fork, shock absorber, brake system, transmission system, lighting equipment, instrumentation equipment, etc. For motorcycles, the front fork has not only the function of shock absorption, but also the function of steering. In addition to being able to move up and down to achieve the effect of shock absorption, the front fork on the motorcycle must be fixed at one end of the frame and turned by the handlebars to enable the vehicle to steer.

[0003] In real life, if a motorcycle is driven for a long time or is not cleaned and maintained, the front fork action parts, such as the front fork and frame rotation connection, the front fork and shock absorber connection, etc., will be contaminated with sand, dust, oil stains and other debris. These debris will accumulate on the front fork, causing the front fork to be worn and rusted, which can easily cause the motorcycle to be blocked from turning and increase driving risks;

[0004] The outer tube of the front fork is directly exposed to the outside and is easily contaminated by dust, dirt and water stains; dust will form abrasives on the surface of the outer tube, accelerating the friction with the inner tube, causing scratches and wear;

[0005] When a motorcycle is traveling at high speed, starting at full throttle, crossing ditches or running over stones on the road, the front wheel will jump up or have a tendency to jump up. At the moment of landing, the direction of movement of the front wheel will deviate from the direction of movement of the vehicle body. At this time, the front wheel will automatically swing in the direction of movement of the vehicle body, causing violent swinging, causing the handlebars and front fork to swing violently, increasing driving risks and reducing the stability of the vehicle during driving. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a motorcycle head bracket structure.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention proposes a motorcycle head support structure, including a front fork, a shock absorber, a middle shaft and a handlebar; the shock absorber is installed at two locations at the bottom of the front fork, and the middle shaft is located in the middle position of the top of the front fork for connecting the frame; the handlebar is installed at the top of the front fork for installing instruments and controllers; the front fork includes:

[0008] A correction rod, the correction rod is installed at the top of the middle shaft, and the center of the arc-shaped correction rod is fixed at the top of the middle shaft, and the circumference is located at the top of the front fork; a correction block is evenly slidably connected on the circumference of the correction rod, and the bottom of the correction block is connected to the top of the front fork, and the two sides of the front fork correspond to two correction blocks; a hydraulic cylinder is hinged on the correction rod, and a hydraulic rod is slidably connected in the hydraulic cylinder, and one end of the hydraulic rod is hinged to one side of the correction block;

[0009] An oil storage tank is installed on the front fork and stores hydraulic oil, and an oil pipe is provided on the oil storage tank, one end of which is connected to the hydraulic cylinder; a regulating valve is installed in the middle of the oil pipe for adjusting the flow of hydraulic oil in the oil pipe; a branch pipe is installed on one side of the oil storage tank, and the branch pipe is connected to the oil storage tank through a solenoid valve, an annular lubrication pipe is sleeved on the middle shaft, and one end of the branch pipe is connected to the lubrication pipe, and lubrication holes are evenly opened at the bottom of the lubrication pipe, and the lubrication holes are located above the connection between the middle shaft and the frame; a controller is installed on the front fork, and the controller controls the regulating valve according to the speed of the motorcycle to control the flow of hydraulic oil in the oil pipe.

[0010] Preferably, a dust cover is installed between the front fork and the shock absorber, and the top of the dust cover is connected to the front fork, and the bottom is connected to the shock absorber; a sensor is installed at the bottom of the front fork, a detection rod is installed on the shock absorber, and one end of the detection rod is installed in the sensor, when the shock absorber moves away from the front fork to a limit distance, the detection rod moves away from the sensor to a limit distance, the sensor is triggered and sends a signal to the controller; a cleaning ring is provided under the lubrication pipe, the bottom of the cleaning ring is connected to the frame through a set sliding rod, and a cotton block is provided at the bottom of the cleaning ring; a dust cylinder is provided on the middle shaft, the top of the dust cylinder is located above the cleaning ring, and the bottom is located below the connection part of the middle shaft and the frame; scrapers are evenly provided on the dust cylinder at the bottom of the cotton block, and the scraper and the bottom of the cotton block both contact the connection part of the middle shaft and the frame.

[0011] Preferably, a gear is provided between the inner wall of the dustproof cylinder and the cleaning ring, the gear is rotatably connected to the top of one side of the Y-shaped sliding rod, and the cleaning ring is slidably connected to the sliding rod, and the sliding rod slides around the center of the cleaning circle; the top of the cleaning ring is inclined, and the inclined part of the top of the cleaning ring is below the lubrication hole; the two sides of the scraper are inclined, and grooves are evenly provided on the inclined parts of the scraper, and the openings of the grooves face the cleaning ring at the top.

[0012] Preferably, scraper rods are slidably connected on both sides of the scraper, and the bottom of the scraper rods is located below the scraper, and the scraper rods fit the inclined surface of the scraper; a guide groove is provided at the bottom of the scraper rod, and a wavy guide ring is provided on the outer ring surface of the frame, and the top of the guide ring extends into the guide groove.

[0013] Preferably, a scraper blade is hinged on one side of the scraper rod, and arc-shaped pieces are evenly arranged on one side of the scraper blade; when the scraper rod moves close to the inner wall of the dustproof cylinder, the scraper blade contacts the scraper plate; when the scraper rod is reset away from the inner wall of the dustproof cylinder, the arc-shaped piece contacts the scraper plate.

[0014] Preferably, the inclined surface of the scraper is provided with a rough area, the outer ring surface of the arc-shaped piece is roughened, and the outer ring surface of the arc-shaped piece contacts the rough area of ​​the scraper.

[0015] Preferably, the front fork is located in a dust cover and a cylinder is installed therein, a piston is provided at the end of the detection rod, and the piston is slidably connected in the cylinder; one end of the cylinder is connected to the scraper through an air pipe, suction ports are evenly provided on the top of the scraper, and the suction ports face the cotton block, and one end of the air pipe is connected to the suction port.

[0016] Preferably, the dust cover consists of a fixing sleeve, a fixing ring and a sealing ring, the top of the fixing sleeve is fixed on the front fork, the fixing ring is fixed on the cylindrical shock absorber, and the sealing ring is sleeved on the outer ring surface of the fixing ring; the air pipes are evenly distributed on both sides of the cylinder, and the air pipes are connected to the cylinder through a one-way valve, the air pipe on one side of the cylinder is used to inhale air into the suction port, and the air pipe on the other side is used to blow air to the bottom of the sealing ring.

[0017] Preferably, lubricating oil is stored in the fixing ring, and one-way valves are respectively provided at the top and bottom of the fixing ring; and the cross-section of the sealing ring is circular.

[0018] Preferably, a cotton ring is provided on the top of the fixed ring, and the cotton ring contacts the sealing ring, the top of the fixed ring is inclined from the inner ring to the outer ring, the cotton ring and the one-way valve on the top of the fixed ring are both located at the inclined part of the top of the fixed ring, and the one-way valve on the top of the fixed ring is located within the inner circle of the cotton ring.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. A motorcycle head support structure described in the present invention, when a person is driving a motorcycle at a lower speed, a controller controls the regulating valve to be fully opened to maintain the steering sensitivity of the motorcycle when driving at a low speed; when a person is driving a motorcycle at a higher speed, the controller controls the flow of hydraulic oil in the oil pipe to decrease through the regulating valve, thereby slowing down the swing speed of the handlebars and the front fork during high-speed driving, so that the front fork can automatically adjust the steering speed according to the driving speed of the motorcycle, thereby achieving the goal of limiting the high-speed steering speed of the motorcycle while maintaining the steering sensitivity of the motorcycle when driving at a low speed, thereby improving the convenience of using the motorcycle and thus improving the practicality.

[0021] 2. In the motorcycle head support structure described in the present invention, during long-term driving, the controller periodically opens the solenoid valve, and the hydraulic oil in the oil storage tank flows downward into the branch pipe, and drips from the lubrication hole to the connection between the middle shaft and the frame through the branch pipe and the lubrication pipe, so as to lubricate the rotational connection between the middle shaft and the frame, reduce the rotational friction resistance between the middle shaft and the frame, reduce wear, maintain the steering sensitivity of the motorcycle, and improve the driving safety of the motorcycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a stereogram of the present invention;

[0024] Figure 2 This is the state diagram when the front fork is turning;

[0025] Figure 3 This is a schematic diagram of the interior of the upper part of the fork;

[0026] Figure 4 This is a schematic diagram of the interior of the dust cylinder;

[0027] Figure 5 It is a schematic diagram of the rotation direction of the dustproof cylinder;

[0028] Figure 6 This is the state diagram when the scraper is scraping the groove;

[0029] Figure 7 This is the state diagram when the scraper is away from the groove;

[0030] Figure 8 This is a schematic diagram of the interior of the lower half of the fork;

[0031] Fig. 9 This is a schematic diagram of the interior of the dust jacket;

[0032] In the figure: front fork 1, shock absorber 11, middle shaft 12, frame 13, correction rod 14, correction block 15, hydraulic cylinder 16, hydraulic rod 17, oil storage tank 18, oil pipe 19, regulating valve 2, branch pipe 21, lubrication pipe 22, lubrication hole 23, dust cover 24, sensor 25, detection rod 26, cleaning ring 27, slide rod 28, cotton block 29, dust cover 3, scraper 31, gear 32, groove 33, scraper rod 34, guide groove 35, guide ring 36, scraper blade 37, arc piece 38, cylinder 4, piston 41, air pipe 42, suction port 43, fixing sleeve 44, fixing ring 45, sealing ring 46, cotton ring 47. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] In order to effectively solve the above problems, as shown in the accompanying drawings of the specification Figure 1-Figure 9As shown, it includes a front fork 1, a shock absorber 11, a middle shaft 12 and a handlebar; the shock absorber 11 is installed at two locations at the bottom of the front fork 1, and the middle shaft 12 is located in the middle position of the top of the front fork 1, and is used to connect the frame 13; the handlebar is installed on the top of the front fork 1, and is used to install instruments and controllers; the front fork 1 includes:

[0036] A correction rod 14, wherein the correction rod 14 is installed at the top of the middle shaft 12, and the center of the arc-shaped correction rod 14 is fixed at the top of the middle shaft 12, and the circumference is located at the top of the front fork 1; a correction block 15 is evenly slidably connected on the circumference of the correction rod 14, and the bottom of the correction block 15 is connected to the top of the front fork 1, and two correction blocks 15 correspond to each other on both sides of the front fork 1; a hydraulic cylinder 16 is hinged on the correction rod 14, and a hydraulic rod 17 is slidably connected in the hydraulic cylinder 16, and one end of the hydraulic rod 17 is hinged to one side of the correction block 15;

[0037] An oil storage tank 18, the oil storage tank 18 is installed on the front fork 1 and stores hydraulic oil, and an oil pipe 19 is provided on the oil storage tank 18, one end of the oil pipe 19 is connected to the hydraulic cylinder 16; a regulating valve 2 is installed in the middle of the oil pipe 19, which is used to adjust the flow of hydraulic oil in the oil pipe 19; a branch pipe 21 is installed on one side of the oil storage tank 18, and the branch pipe 21 is connected to the oil storage tank 18 through a solenoid valve, an annular lubrication pipe 22 is sleeved on the middle shaft 12, and one end of the branch pipe 21 is connected to the lubrication pipe 22, and lubrication holes 23 are evenly opened at the bottom of the lubrication pipe 22, and the lubrication holes 23 are located above the connection between the middle shaft 12 and the frame 13; a controller is installed on the front fork 1, and the controller controls the regulating valve 2 according to the speed of the motorcycle to control the flow of hydraulic oil in the oil pipe 19;

[0038] The hydraulic cylinder 16 is located on both sides of the correction rod 14 and away from the central axis 12; the regulating valve 2 is a conventional liquid flow regulating device in the pipeline, and the controller controls the regulating valve 2 and the solenoid valve through the wiring harness; the controller is a control component equipped on a conventional vehicle; the hydraulic oil is a conventional oil that can be used as a lubricant; the oil storage tank 18 is built with an air nozzle for balancing the internal and external air pressure difference to prevent the oil storage tank 18 from affecting normal operation due to the air pressure difference. When used for a long time, the personnel can add the hydraulic oil in the oil storage tank 18 by themselves;

[0039] Specific working process: when assembling a motorcycle, the top of the front fork 1 is connected to the frame 13 through the middle axis 12, the bottom of the front fork 1 is connected to the wheel through the shock absorber 11, and the handlebar is installed at the top of the front fork 1 near the middle axis 12; when riding, the person swings the handlebar, and the handlebar drives the front fork 1 to swing around the middle axis 12 as the center of the circle. When the person needs to turn, the front fork 1 is rotated through the handlebar. When the front fork 1 rotates around the middle axis 12, the front fork 1 drives the correction block 15 to slide along the arc-shaped correction rod 14; The correction block 15 on one side of the positive rod 14 slides close to the corresponding hydraulic cylinder 16, and squeezes the hydraulic oil in the hydraulic cylinder 16 through the hydraulic rod 17, and squeezes the hydraulic oil into the oil storage tank 18 through the oil pipe 19; the correction block 15 on the other side of the correction rod 14 slides away from the corresponding hydraulic cylinder 16, and drives the hydraulic rod 17 to be withdrawn from the hydraulic cylinder 16, and the hydraulic oil in the oil storage tank 18 is pumped into the hydraulic cylinder 16. At this time, the handlebar drives the front fork 1 to swing around the middle axis 12, completing the steering action of the motorcycle;

[0040] When a person drives a motorcycle at a relatively low speed, the controller controls the regulating valve 2 to be fully opened, so that the hydraulic oil between the oil storage tank 18 and the hydraulic cylinder 16 can flow freely through the oil pipe 19, thereby maintaining the steering sensitivity of the motorcycle when driving at a low speed and improving the driving safety.

[0041] When a person drives a motorcycle at a high speed, the controller controls the flow rate of the hydraulic oil in the oil pipe 19 to decrease through the regulating valve 2, so that the flow rate of the hydraulic oil squeezed out and sucked by the hydraulic cylinder 16 is reduced, slowing down the swing speed of the handlebar and the front fork 1 during high-speed driving, avoiding the motorcycle from swinging violently and causing the motorcycle to be out of control, thereby improving the driving safety of the motorcycle;

[0042] By switching between the above two modes, the front fork 1 can automatically adjust the steering speed according to the running speed of the motorcycle, so that the steering speed of the motorcycle is limited at high speed while maintaining the steering sensitivity of the motorcycle at low speed, thereby improving the convenience of use of the motorcycle and thus improving the practicality;

[0043] The connection part between the middle shaft 12 and the frame 13 is the connection part between the front of the motorcycle and the body, and the front fork 1 swings around the middle shaft 12, so that the front wheel can drive the frame 13 and the rear wheel to complete the steering action of the motorcycle; the motorcycle will experience frequent steering when driving, resulting in the connection part between the middle shaft 12 and the frame 13 will frequently experience rotational friction, and the connection part between the middle shaft 12 and the frame 13 is located inside the front of the motorcycle, and it is inconvenient for personnel to refuel and lubricate here, resulting in increased friction here, causing the steering to be blocked; therefore, during long-term driving, the controller periodically opens the solenoid valve, and the hydraulic oil in the oil storage tank 18 flows downward into the branch pipe 21, and drips from the lubrication hole 23 through the branch pipe 21 and the lubrication pipe 22 to the connection part between the middle shaft 12 and the frame 13, lubricating the rotational connection part between the middle shaft 12 and the frame 13, reducing the rotational friction resistance of the middle shaft 12 and the frame 13, reducing wear, maintaining the steering sensitivity of the motorcycle, and improving the driving safety of the motorcycle;

[0044] Furthermore, since the lubrication pipe 22 is annularly arranged around the rotational connection portion between the middle shaft 12 and the frame 13, the lubrication hole 23 can evenly drip the hydraulic oil onto the rotational connection portion between the middle shaft 12 and the frame 13, thereby achieving the effect of fully lubricating the rotational connection portion between the middle shaft 12 and the frame 13, further reducing the rotational friction resistance between the middle shaft 12 and the frame 13, maintaining the steering sensitivity of the motorcycle, and improving the driving safety of the motorcycle.

[0045] Embodiment 2:

[0046] On the basis of the first embodiment, a dust cover 24 is installed between the front fork 1 and the shock absorber 11, and the top of the dust cover 24 is connected to the front fork 1, and the bottom is connected to the shock absorber 11; a sensor 25 is installed at the bottom of the front fork 1, and a detection rod 26 is installed on the shock absorber 11, and one end of the detection rod 26 is installed in the sensor 25. When the shock absorber 11 is away from the front fork 1 to a limit distance, the detection rod 26 is away from the sensor 25 to a limit distance, and the sensor 25 is triggered and sends a signal to the controller; A cleaning ring 27 is provided below the lubrication pipe 22, a sliding rod 28 provided at the bottom of the cleaning ring 27 is connected to the frame 13, and a cotton block 29 is provided at the bottom of the cleaning ring 27; a dustproof cylinder 3 is sleeved on the middle shaft 12, the top of the dustproof cylinder 3 is located above the cleaning ring 27, and the bottom is located below the connection between the middle shaft 12 and the frame 13; a scraper 31 is evenly provided at the bottom of the cotton block 29 of the dustproof cylinder 3, and the scraper 31 and the bottom of the cotton block 29 both contact the connection between the middle shaft 12 and the frame 13;

[0047] A gear 32 is provided between the inner wall of the dustproof cylinder 3 and the cleaning ring 27, the gear 32 is rotatably connected to the top of one side of the Y-shaped slide bar 28, and the cleaning ring 27 is slidably connected to the slide bar 28, and the slide bar 28 slides around the center of the cleaning ring 27; the top of the cleaning ring 27 is inclined, and the inclined portion of the top of the cleaning ring 27 is below the lubrication hole 23; the two sides of the scraper 31 are inclined surfaces, and the inclined portions of the scraper 31 are evenly provided with grooves 33, and the opening of the grooves 33 faces the cleaning ring 27 at the top;

[0048] Scraping rods 34 are slidably connected to both sides of the scraper 31, and the bottom of the scraper rods 34 is located below the scraper 31, and the scraper rods 34 are in contact with the inclined surface of the scraper 31; a guide groove 35 is provided at the bottom of the scraper rod 34, and a wave-shaped guide ring 36 is provided on the outer ring surface of the frame 13, and the top of the guide ring 36 extends into the guide groove 35;

[0049] The shock absorber 11 is a shock absorbing component of a conventional motorcycle front fork 1; the sensor 25 is a conventional electrical appliance for detecting displacement, and the sensor 25 is used to detect the lifting distance of the detection rod 26; the inner wall of the dustproof cylinder 3 is meshed with one side of the gear 32, and the outer ring of the cleaning ring 27 is meshed with the other side of the gear 32; the gear 32 is rotatably connected to the top of one side of the Y-shaped slide bar 28, and the bottom of the cleaning ring 27 is slidably connected to the top of the other side of the Y-shaped slide bar 28; the front fork 1 and the middle shaft 12 are restricted in rotation, so that the rotation range of the front fork 1 and the middle shaft 12 is less than 360 degrees, so the slide bar 28 will not intercept the rotation of the scraper 31;

[0050] Specific working process: when the motorcycle is running, the dust cover 24 blocks the connection between the front fork 1 and the shock absorber 11, isolating the connection between the front fork 1 and the outside world, increasing the protection of the front fork 1 and improving the cleanliness of the front fork 1; when the detection rod 26 is away from the shock absorber 11 to the limit distance, the sensor 25 is triggered and sends a signal to the controller, because when the motorcycle crosses the ditch, the front wheel will jump up, and at the moment of landing, the forward direction of the front wheel will deviate from the forward direction of the vehicle body, resulting in a violent swing. The sensor 25 sends a signal to the controller, and the controller controls the flow of hydraulic oil through the regulating valve 2, limits the steering of the handlebar and the front fork 1, and improves the stability of the motorcycle crossing the ditch, thereby improving the driving safety of the motorcycle;

[0051] When turning, the cleaning ring 27 contacts the rotating connection part of the middle shaft 12 and the frame 13 through the cotton block 29, and the hydraulic oil dripping from the lubrication hole 23 is absorbed and stored inside by the cotton block 29. The cotton block 29 containing the hydraulic oil can lubricate the rotating connection part of the middle shaft 12 and the frame 13 for a long time, prolonging the lubrication maintenance effect, and preventing the hydraulic oil from dripping away from the middle shaft 12 before it is fully lubricated, thereby improving the lubrication effect and further improving driving safety;

[0052] When turning, the front fork 1 and the middle shaft 12 swing with the axis of the middle shaft 12 as the center of the circle, the middle shaft 12 drives the dustproof cylinder 3 to rotate, the dustproof cylinder 3 drives the scraper 31 to rotate, the scraper 31 scrapes the rotating connection part of the middle shaft 12 and the frame 13, scrapes off the sludge mixed with oil and dust on the surface, improves the cleanliness of the rotating connection part of the middle shaft 12 and the frame 13, and prevents the sludge from acting as an abrasive during the frequent rotation of the middle shaft 12, causing wear of the rotating connection part of the middle shaft 12 and the frame 13, thereby improving the lubrication degree of the rotating connection part of the middle shaft 12 and the frame 13, reducing wear, and improving driving safety;

[0053] The bottom of the slide bar 28 is connected to the frame 13, so that the slide bar 28 remains fixed and does not rotate, and the anti-dust cylinder 3 rotates counterclockwise to drive the gear 32 to rotate counterclockwise, and the anti-clockwise rotation of the gear 32 drives the cleaning ring 27 to rotate clockwise, so that the rotation directions of the dust-proof cylinder 3 and the cleaning ring 27 are opposite. On the one hand, the rotation of the cleaning ring 27 drives the cotton block 29 to rotate, and the bottom of the cotton block 29 wipes the rotation connection part between the middle shaft 12 and the frame 13 to improve the cleanliness; on the other hand, the dust-proof cylinder 3 drives the scraper 31 to rotate counterclockwise, and the top of the scraper 31 scrapes the bottom of the cotton block 29 rotating clockwise, and the bottom of the scraper 31 scrapes the rotation connection part of the middle shaft 12, so that the scraper 31 cleans the sludge on the middle shaft 12 and cleans the cotton block 29 at the same time, thereby improving the cleanliness of the cotton block 29, maintaining the wiping and cleaning effect of the cotton block 29 on the rotation connection part of the middle shaft 12, and further improving the cleanliness of the rotation connection part of the middle shaft 12, thereby improving the driving safety of the motorcycle;

[0054] When the lubrication hole 23 drips oil, if the oil drips on the top of the cleaning ring 27 due to bumps, the oil slides along the inclined surface of the top of the cleaning ring 27 toward the center and converges until the oil drips on the cotton block 29, ensuring that the oil can be absorbed by the cotton block 29, avoiding the situation that the oil does not drip on the cotton block 29, resulting in lack of lubrication of the middle shaft 12, thereby improving the lubrication effect, improving the steering sensitivity, and thus improving the driving safety;

[0055] The scraper 31 has inclined surfaces on both sides, so that when the scraper 31 rotates and scrapes the rotating connection part of the middle shaft 12, the sludge can be scraped by one side of the scraper 31 to the inclined surface, and the sludge enters the groove 33 to intercept the sludge, thereby preventing the scraped sludge from contacting the rotating connection part of the middle shaft 12 again, improving the cleaning effect of the scraper 31, thereby improving the cleanliness of the rotating connection part of the middle shaft 12, and further improving driving safety;

[0056] Moreover, when the scraper rod 34 is stationary, it is located at the position of the scraper plate 31 close to the inner wall of the dust-proof cylinder 3, and at this time, the top of the guide ring 36 is inserted into the guide groove 35; when the motorcycle turns, the dust-proof cylinder 3 and the cleaning ring 27 rotate, and after the motorcycle turns, the front of the motorcycle rotates and resets, and the dust-proof cylinder 3 and the cleaning ring 27 rotate and reset, so that the dust-proof cylinder 3 and the cleaning ring 27 can reciprocate and scrape the rotating connection part of the central shaft 12 every time the motorcycle turns, thereby increasing the cleaning times and improving the cleanliness;

[0057] Moreover, the cross section of the guide ring 36 is circular, and the circle contains protrusions and depressions. The protrusions in the circle are far away from the center of the circle, and the depressions in the center of the circle are close to the center of the circle, which is similar to the shape of a sunflower. When the scraper rod 34 rotates along the guide ring 36 through the guide groove 35, when the scraper rod 34 passes through the protruding part of the guide ring 36, the scraper rod 34 is far away from the central axis 12, and when the scraper rod 34 passes through the concave part of the guide ring 36, the scraper rod 34 is close to the central axis 12, so that the scraper rod 34 reciprocates on the scraper plate 31, thereby scraping the sludge on the scraper plate 31 away from the central axis 12;

[0058] In addition, when a motorcycle is parked, the front of the motorcycle is usually in a deflected state, so that when the motorcycle is stationary, the dust cylinder 3 and the cleaning ring 27 are in a state of not being reset after rotation. Before a person needs to drive, the front of the motorcycle will be swung forward to reset. At this time, the dust cylinder 3 and the cleaning ring 27 will also be reset in the above-mentioned manner. During the resetting process of the dust cylinder 3 and the cleaning ring 27, the middle shaft 12 that has been placed for a long time and has accumulated dust is cleaned, thereby achieving the purpose of cleaning the middle shaft 12 before riding, and lubricating and cleaning in advance to maintain steering sensitivity, thereby improving the driving safety of the motorcycle.

[0059] Embodiment three:

[0060] On the basis of the second embodiment, a scraper blade 37 is hingedly connected to one side of the scraper rod 34, and an arc-shaped piece 38 is evenly arranged on one side of the scraper blade 37; when the scraper rod 34 moves close to the inner wall of the dustproof cylinder 3, the scraper blade 37 contacts the scraper plate 31; when the scraper rod 34 is reset away from the inner wall of the dustproof cylinder 3, the arc-shaped piece 38 contacts the scraper plate 31;

[0061] The inclined surface of the scraper 31 is provided with a rough area, the outer surface of the arc-shaped piece 38 is roughened, and the outer surface of the arc-shaped piece 38 contacts the rough area of ​​the scraper 31;

[0062] Specific working process: when the scraper rod 34 drives the scraper blade 37 to approach the central axis 12, the outer circle of the arc-shaped piece 38 contacts the inclined surface of the scraper plate 31 and generates friction resistance, so that the arc-shaped piece 38 and the scraper blade 37 swing with the intersection of the scraper blade 37 as the center of the circle, so that the arc-shaped piece 38 contacts the inclined surface of the scraper plate 31, and the scraper blade 37 is away from the scraper plate 31. The area of ​​the arc-shaped piece 38 contacting the inclined surface of the scraper plate 31 is small, so that the arc-shaped piece 38 will not push the sludge on the scraper plate 31 to the part close to the central axis 12, and avoid the sludge from being pushed to the part of the scraper plate 31 close to the central axis 12, thereby facilitating the scraping and cleaning of the sludge;

[0063] When the scraper blade 37 moves away from the central axis 12, the outer ring of the arc-shaped piece 38 contacts the inclined surface of the scraper plate 31 and generates friction resistance, so that the arc-shaped piece 38 and the scraper blade 37 swing in opposite directions, so that the arc-shaped piece 38 moves away from the scraper plate 31, and the scraper blade 37 contacts the inclined surface and the groove 33 of the scraper plate 31; as the scraper blade 37 moves, the scraper blade 37 scrapes the sludge on the scraper plate 31 away from the central axis 12, improves the cleanliness of the inclined surface and the groove 33 of the scraper plate 31, maintains the scraping and cleaning effect of the scraper blade 31, thereby improving the cleaning efficiency of the scraper blade 31 on the rotating connection part of the central axis 12, and further improves the driving safety of the motorcycle;

[0064] Furthermore, since the rough area set on the inclined surface of the scraper 31 contacts the rough surface of the outer circle of the arc piece 38, the friction resistance generated when the arc piece 38 and the scraper 31 contact each other increases, which helps the swing of the arc piece 38 and the scraper 37, and avoids the oil stains remaining due to the movement of sludge on the scraper 31, which causes slipping between the arc piece 38 and the scraper 31 and affects the normal work of removing sludge, thereby improving the convenience of use and further improving practicality.

[0065] Embodiment 4:

[0066] On the basis of the third embodiment, the front fork 1 is located in the dust cover 24 and is equipped with a cylinder 4, a piston 41 is provided at the end of the detection rod 26, and the piston 41 is slidably connected in the cylinder 4; one end of the cylinder 4 is connected to the scraper 31 through an air pipe 42, and a suction port 43 is evenly provided on the top of the scraper 31, and the suction port 43 faces the cotton block 29, and one end of the air pipe 42 is connected to the suction port 43;

[0067] The dust cover 24 is composed of a fixing cover 44, a fixing ring 45 and a sealing ring 46. The top of the fixing cover 44 is arranged on the front fork 1, the fixing ring 45 is arranged on the cylindrical shock absorber 11, and the sealing ring 46 is sleeved on the outer ring surface of the fixing ring 45; the air pipes 42 are evenly distributed on both sides of the cylinder 4, and the air pipes 42 are connected to the cylinder 4 through a one-way valve. The air pipe 42 on one side of the cylinder 4 is used to inhale air to the suction port 43, and the air pipe 42 on the other side is used to blow air to the bottom of the sealing ring 46;

[0068] The fixing ring 45 stores lubricating oil, and one-way valves are respectively provided at the top and bottom of the fixing ring 45; the sealing ring 46 has a circular cross section;

[0069] A cotton ring 47 is provided on the top of the fixing ring 45, and the cotton ring 47 contacts the sealing ring 46. The top of the fixing ring 45 is inclined from the inner circle to the outer circle. The cotton ring 47 and the one-way valve on the top of the fixing ring 45 are both located at the inclined part of the top of the fixing ring 45. The one-way valve on the top of the fixing ring 45 is located within the inner circle of the cotton ring 47.

[0070] Specific working process: The motorcycle often encounters bumpy roads during driving, which causes the front fork 1 and the shock absorber 11 to frequently approach and move away, prompting the detection rod 26 to drive the piston 41 to move frequently in the cylinder 4; when the piston 41 moves away from the top of the cylinder 4, negative pressure is formed in the cylinder 4, and suction is sucked toward the bottom of the cotton block 29 through the air pipe 42 and the suction port 43, and the oil sludge wiped out from the bottom of the cotton block 29 is sucked away, and the scraping of the scraper 31 is used to improve the cleaning degree of the cotton block 29, thereby improving the effect of the cotton block 29 in wiping and cleaning the middle shaft 12, and then improving the cleanliness of the middle shaft 12;

[0071] The conventional dust cover 24 of the front fork 1 of a motorcycle is in the shape of a bellows, one end of which is fixed on the front fork 1 and the other end is fixed on the shock absorber 11. The shape of the bellows adapts to the expansion and contraction of the front fork 1 on a bumpy road surface; however, the conventional dust cover 24 is easily damaged in an environment of long-term expansion and contraction and exposure to the sun and rain. If the dust cover 24 is damaged, it is difficult for personnel to find it, resulting in the dust cover 24 being unable to prevent dust. At the same time, after dust enters the interior of the dust cover 24 through the damaged part, it is difficult to discharge it, resulting in internal dust accumulation, affecting the normal operation of the front fork 1 and the shock absorber 11; therefore, when the motorcycle passes through a bumpy road surface, the fixed cover 44 and the sealing ring 46 move away from and close to each other to adapt to the expansion and contraction of the front fork 1 and the shock absorber 11, that is, the fixed ring 45 is tightly fitted on the inner wall of the fixed cover 44 through the sealing ring 46 and slides up and down, so that the fixed cover 44 is in a closed state through the fitting of the sealing ring 46, isolating the dust from the outside, improving the cleanliness of the front fork 1, and thus improving the driving safety of the motorcycle;

[0072] When the piston 41 is away from the top of the cylinder 4, the air pipe 42 on one side of the cylinder 4 inhales air toward the suction port 43; when the piston 41 is close to the top of the cylinder 4, the internal air is squeezed, and the air pipe 42 on the other side is used to blow air toward the bottom of the sealing ring 46 to blow away the dust adhering to the bottom of the fixing sleeve 44, the sealing ring 46 and the fixing ring 45 to avoid dust accumulation; and when the motorcycle is running at high speed, the air flow rate under the fixing sleeve 44 is fast, while the air flow rate at the bottom of the fixing sleeve 44 is slow, so that there is an air pressure difference between the two places, so that the dust at the bottom of the fixing sleeve 44 is sucked to the outside, and the blowing of the air pipe 42 is combined to further improve the cleanliness of the bottom of the fixing sleeve 44;

[0073] When the fixing sleeve 44 and the fixing ring 45 are close to each other, the air in the fixing sleeve 44 is discharged through the air nozzle built in the fixing sleeve 44; when the fixing sleeve 44 and the fixing ring 45 are far away from each other, the negative pressure formed in the fixing sleeve 44 sucks the air through the air nozzle on the one hand, and sucks the lubricating oil through the one-way valve on the fixing ring 45 on the other hand, and the lubricating oil in the fixing ring 45 is drawn out to the inner wall surface of the fixing sleeve 44, thereby reducing the friction force between the sealing ring 46 and the inner wall of the fixing sleeve 44, reducing the wear between the sealing ring 46 and the fixing sleeve 44, improving the sealing effect, and thus improving the dustproof effect;

[0074] Furthermore, when the extracted lubricating oil flows through the top of the fixing ring 45, the inclined surface on the top of the fixing ring 45 can promote the lubricating oil to flow to the inner wall of the fixing sleeve 44, which is helpful for the lubrication between the sealing ring 46 and the fixing sleeve 44; and, by providing the cotton ring 47, the cotton ring 47 can absorb the lubricating oil and evenly apply it to the inner wall of the fixing sleeve 44, thereby improving the uniformity of lubrication, thereby improving the sealing effect and further improving the dustproof effect.

[0075] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A motorcycle head support structure, comprising a front fork (1), a shock absorber (11), a middle shaft (12) and a handlebar; the shock absorber (11) is installed at two locations at the bottom of the front fork (1), and the middle shaft (12) is located at the middle position of the top of the front fork (1) for connecting to a frame (13); the handlebar is installed at the top of the front fork (1) for installing an instrument and a controller; the characteristics are: The front fork (1) comprises: A correction rod (14), wherein the correction rod (14) is installed at the top of the middle axis (12), and the center of the arc-shaped correction rod (14) is fixed at the top of the middle axis (12), and the circumference is located at the top of the front fork (1); a correction block (15) is evenly slidably connected on the circumference of the correction rod (14), and the bottom of the correction block (15) is connected to the top of the front fork (1), and two sides of the front fork (1) correspond to two correction blocks (15); a hydraulic cylinder (16) is hinged on the correction rod (14), and a hydraulic rod (17) is slidably connected in the hydraulic cylinder (16), and one end of the hydraulic rod (17) is hinged to one side of the correction block (15); An oil storage tank (18) is installed on the front fork (1) and stores hydraulic oil. An oil pipe (19) is provided on the oil storage tank (18). One end of the oil pipe (19) is connected to the inside of the hydraulic cylinder (16). A regulating valve (2) is installed in the middle of the oil pipe (19) for regulating the flow of hydraulic oil in the oil pipe (19). A branch pipe (21) is installed on one side of the oil storage tank (18). The branch pipe (21) is connected to the oil storage tank (18) through a solenoid valve. ), an annular lubrication pipe (22) is sleeved on the middle shaft (12), and one end of the branch pipe (21) is connected to the lubrication pipe (22), and lubrication holes (23) are evenly opened at the bottom of the lubrication pipe (22), and the lubrication holes (23) are located above the connection between the middle shaft (12) and the frame (13); a controller is installed on the front fork (1), and the controller controls the regulating valve (2) according to the speed of the motorcycle to realize the control of the flow rate of hydraulic oil in the oil pipe (19).

2. A motorcycle head support structure according to claim 1, characterized in that: A dust cover (24) is installed between the front fork (1) and the shock absorber (11), and the top of the dust cover (24) is connected to the front fork (1), and the bottom is connected to the shock absorber (11); a sensor (25) is installed at the bottom of the front fork (1), a detection rod (26) is installed on the shock absorber (11), and one end of the detection rod (26) is installed in the sensor (25); when the shock absorber (11) moves away from the front fork (1) to a limit distance, the detection rod (26) moves away from the sensor (25) to a limit distance, and the sensor (25) is triggered and sends a signal to the controller; the lubrication pipe (22) A cleaning ring (27) is provided at the bottom, the bottom of the cleaning ring (27) is connected to the frame (13) through a sliding rod (28), and a cotton block (29) is provided at the bottom of the cleaning ring (27); a dustproof cylinder (3) is sleeved on the middle axis (12), the top of the dustproof cylinder (3) is located above the cleaning ring (27), and the bottom is located below the connection between the middle axis (12) and the frame (13); the dustproof cylinder (3) is evenly provided with a scraper (31) at the bottom of the cotton block (29), and the bottoms of the scraper (31) and the cotton block (29) both contact the connection between the middle axis (12) and the frame (13).

3. A motorcycle head support structure according to claim 2, characterized in that: A gear (32) is provided between the inner wall of the dustproof cylinder (3) and the cleaning ring (27), the gear (32) is rotatably connected to the top of one side of the Y-shaped sliding rod (28), and the cleaning ring (27) is slidably connected to the sliding rod (28), and the sliding rod (28) slides around the center of the cleaning ring (27); the top of the cleaning ring (27) is arranged in an inclined shape, and the inclined part of the top of the cleaning ring (27) is located below the lubrication hole (23); the two sides of the scraper (31) are inclined surfaces, and the inclined parts of the scraper (31) are evenly provided with grooves (33), and the opening of the groove (33) faces the cleaning ring (27) at the top.

4. A motorcycle head support structure according to claim 3, characterized in that: Scraper rods (34) are slidably connected to both sides of the scraper (31), and the bottom of the scraper rod (34) is located below the scraper (31), and the scraper rod (34) fits the inclined surface of the scraper (31); a guide groove (35) is provided at the bottom of the scraper rod (34), and a wave-shaped guide ring (36) is provided on the outer ring surface of the frame (13), and the top of the guide ring (36) extends into the guide groove (35).

5. The motorcycle head support structure according to claim 4, characterized in that: A scraper blade (37) is hingedly connected to one side of the scraper rod (34), and an arc-shaped blade (38) is evenly arranged on one side of the scraper blade (37); when the scraper rod (34) moves close to the inner wall of the dustproof cylinder (3), the scraper blade (37) contacts the scraper plate (31); when the scraper rod (34) is reset and away from the inner wall of the dustproof cylinder (3), the arc-shaped blade (38) contacts the scraper plate (31).

6. The motorcycle head support structure according to claim 5, characterized in that: The inclined surface of the scraper (31) is provided with a rough area, the outer ring surface of the arc-shaped piece (38) is roughened, and the outer ring surface of the arc-shaped piece (38) contacts the rough area of ​​the scraper (31).

7. The motorcycle head support structure according to claim 1, characterized in that: The front fork (1) is located in a dust cover (24) and is equipped with a cylinder (4); a piston (41) is provided at the end of the detection rod (26), and the piston (41) is slidably connected to the cylinder (4); one end of the cylinder (4) is connected to the scraper (31) through an air pipe (42); suction ports (43) are evenly arranged on the top of the scraper (31), and the suction ports (43) face the cotton block (29); one end of the air pipe (42) is connected to the suction port (43).

8. The motorcycle head support structure according to claim 7, characterized in that: The dust cover (24) is composed of a fixing cover (44), a fixing ring (45) and a sealing ring (46); the fixing cover (44) is arranged on the front fork (1) at the top, the fixing ring (45) is arranged on the cylindrical shock absorber (11), and the sealing ring (46) is sleeved on the outer ring surface of the fixing ring (45); the air pipe (42) is evenly distributed on both sides of the cylinder (4), and the air pipe (42) is connected to the cylinder (4) through a one-way valve; the air pipe (42) on one side of the cylinder (4) is used to inhale air to the suction port (43), and the air pipe (42) on the other side is used to blow air to the bottom of the sealing ring (46).

9. The motorcycle head support structure according to claim 8, characterized in that: Lubricating oil is stored in the fixing ring (45), and one-way valves are respectively provided at the top and bottom of the fixing ring (45); the sealing ring (46) has a circular cross section.

10. The motorcycle head support structure according to claim 9, characterized in that: A cotton ring (47) is provided on the top of the fixing ring (45), and the cotton ring (47) contacts the sealing ring (46). The top of the fixing ring (45) is inclined from the inner ring to the outer ring. The cotton ring (47) and the one-way valve on the top of the fixing ring (45) are both located at the inclined portion of the top of the fixing ring (45), and the one-way valve on the top of the fixing ring (45) is located within the inner ring range of the cotton ring (47).

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