Bottom fork structure

Abstract

A bottom fork structure comprises a fixed side plate, a driving motor is arranged on one side of the fixed side plate, the output end of the driving motor extends to the other side of the fixed side plate and is provided with a transmission gear, the transmission gear is meshed with a sector gear, bottom fork supporting legs are arranged on one side of the sector gear, and roller assemblies are arranged at the bottoms of the bottom fork supporting legs. The roller assembly comprises a roller, a first mounting frame and a second mounting frame, the roller is mounted on the first mounting frame through a wheel shaft, the first mounting frame is fixed to the second mounting frame and comprises a first top plate and first side plates arranged on the two sides of the first top plate, a fixing plate is arranged on one side of the first top plate, and a sliding groove is formed in the fixing plate. The upper end face of the limiting bottom plate is connected with a sliding block, the bottom of the limiting bottom plate is connected with a positioning rod, the sliding block is arranged in the sliding groove, the upper end face of the sliding block is connected with a fixing stud, and the fixing stud is in threaded connection with a locking nut. The utility model can be used on an electric vehicle or a motorcycle, and is convenient and labor-saving to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of parking structure, concretely relates to a flat fork structure. BACKGROUND

[0002] Flat forks are widely used in motorcycles and electric vehicles, and are usually used to connect rear wheels and frames. Since the flat fork is located at the rear of the vehicle body, it is also called a rear flat fork. It can fix the rear wheel, bear the weight of the vehicle body, and maintain the stability of the vehicle body. The common flat fork is made of metal pipes welded together. When parking, the flat fork is pushed and supported by the ground through side props or double props. However, the operation is time-consuming and laborious, which brings great difficulty to the elderly. SUMMARY

[0003] The utility model aims at providing a flat fork structure which can effectively solve the technical problems mentioned in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A flat fork structure includes a fixed side plate. One side of the fixed side plate is provided with a drive motor. The output end of the drive motor extends to the other side of the fixed side plate and is installed with a transmission gear. The transmission gear is engaged with a sector gear. One side of the sector gear is provided with a flat fork support leg, and the outer side is provided with a gear reduction box. The bottom of the flat fork support leg is provided with a roller assembly. The roller assembly includes a roller, a first mounting bracket, and a second mounting bracket. The roller is installed on the first mounting bracket through an axle. The first mounting bracket is fixed to the second mounting bracket. The first mounting bracket includes a first top plate and first side plates arranged on both sides of the first top plate. One side of the first top plate is provided with a fixed plate. A sliding groove is formed in the fixed plate. A limiting bottom plate is arranged at the bottom. The upper end surface of the limiting bottom plate is connected with a sliding block. The bottom is connected with a positioning rod. The sliding block is arranged in the sliding groove and the upper end surface is connected with a fixed stud. The fixed stud is threadedly connected with a locking nut. One end of the sliding block is connected with a first spring positioning piece. One end of the sliding groove is provided with a second spring positioning piece. A return spring is arranged between the first spring positioning piece and the second spring positioning piece. One end of the positioning rod is connected with an arc-shaped scraper.

[0006] Preferably, an arc-shaped groove is formed in the arc-shaped scraper, and a scraper gasket made of rubber material is arranged in the arc-shaped groove.

[0007] Preferably, a first fixing block is arranged at the bottom of the first top plate. A second fixing block is connected to one end of the fixed plate. The first fixing block and the second fixing block are connected through bolts.

[0008] Preferably, the upper end surface of the limiting bottom plate is attached to the fixed plate, and the upper end surface of the sliding block is lower than the upper end surface of the fixed plate.

[0009] Preferably, the second mounting frame comprises a second top plate and second side plates arranged on both sides of the second top plate, the two second side plates are fixed on the fork support leg through bolts, the second top plate is provided with a first positioning hole and a second positioning hole, the first top plate is provided with a first positioning boss and a second positioning boss, the first positioning boss and the second positioning boss are arranged in the first positioning hole and the second positioning hole respectively, a first bolt is threadedly connected with a first nut after penetrating through a first screw hole on the first positioning boss, and a second bolt is threadedly connected with a second nut after penetrating through a second screw hole on the second positioning boss.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] When parking is needed, the driving motor drives the transmission gear to rotate, the transmission gear is in meshing transmission with the sector gear, and then the fork support leg is driven to rotate with the sector gear, so that the fork support legs on both sides of the rear wheel of the vehicle are rotated until the rollers are supported on the ground, which is convenient and labor-saving, and is especially convenient for the elderly to use; the rollers are easy to be covered with mud after long-term use, especially in rainy and snowy weather, and the mud is easy to stick to the clothes of the user, which stains the clothes, at this time, the positioning rod is only needed to be pushed to slide along the sliding groove on the fixed plate, and the reset spring is gradually contracted, until the scraper pad on the arc-shaped scraper is attached to the roller, and then the roller is rotated until the mud on the roller is cleaned, and then the positioning rod is loosened, and the scraper pad is separated from the roller under the action of the reset spring. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of a fork structure in the embodiment of the utility model;

[0013] Figure 2 is Figure 1 a local enlarged schematic view of A in the embodiment of the utility model;

[0014] Figure 3 is an installation schematic view of the arc-shaped scraper in the embodiment of the utility model;

[0015] Figure 4 is an installation schematic view of the fork support leg in the embodiment of the utility model;

[0016] In the figure, 1, fixed side plate, 2, drive motor, 3, transmission gear, 4, sector gear, 5, flat fork support leg, 6, roller, 7, first mounting bracket, 8, second mounting bracket, 9, first top plate, 10, first side plate, 11, fixed plate, 12, sliding groove, 13, limiting bottom plate, 14, sliding block, 15, positioning rod, 16, fixed stud, 17, locking nut, 18, first spring positioning piece, 19, second spring positioning piece, 20, return spring, 21, arc-shaped scraper, 22, scraper gasket, 23, first fixed block, 24, second fixed block, 25, second top plate, 26, second side plate, 27, first positioning hole, 28, second positioning hole, 29, first positioning boss, 30, second positioning boss, 31, gear reduction box. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figures 1-4 As shown in the figure, a flat fork structure comprises a fixed side plate 1, one side of the fixed side plate 1 is provided with a drive motor 2, the output end of the drive motor 2 extends to the other side of the fixed side plate 1 and is provided with a transmission gear 3, the transmission gear 3 is engaged with a sector gear 4, one side of the sector gear 4 is provided with a flat fork support leg 5, the outer side is provided with a gear reduction box 31, the bottom of the flat fork support leg 5 is provided with a roller assembly, the roller assembly comprises a roller 6, a first mounting bracket 7 and a second mounting bracket 8, the roller 6 is installed on the first mounting bracket 7 through an axle, the first mounting bracket 7 is fixed on the second mounting bracket 8, the first mounting bracket 7 comprises a first top plate 9 and first side plates 10 arranged on both sides of the first top plate 9, one side of the first top plate 9 is provided with a fixed plate 11, the fixed plate 11 is provided with a sliding groove 12, the bottom is provided with a limiting bottom plate 13, the upper end surface of the limiting bottom plate 13 is connected with a sliding block 14, the bottom is connected with a positioning rod 15, the sliding block 14 is arranged in the sliding groove 12 and the upper end surface is connected with a fixed stud 16, the fixed stud 16 is threadedly connected with a locking nut 17, one end of the sliding block 14 is connected with a first spring positioning piece 18, one end of the sliding groove 12 is provided with a second spring positioning piece 19, a return spring 20 is arranged between the first spring positioning piece 18 and the second spring positioning piece 19, one end of the positioning rod 15 is connected with an arc-shaped scraper 21;

[0019] The driving motor 2 drives the transmission gear 3 to rotate, the transmission gear 3 is engaged with the sector gear 4 to drive the flat fork support leg 5 to rotate with the sector gear 4, so that the flat fork support leg 5 on both sides of the rear wheel of the vehicle rotates until the roller 6 is supported on the ground; the flat fork structure is arranged on both sides of the rear wheel of the vehicle and mounted on the vehicle frame, and the fixed side plate 1 is detachably connected with the vehicle frame through bolts;

[0020] The arc-shaped groove on the arc-shaped scraper 21 is provided with a scraper gasket 22 made of rubber material;

[0021] The driving positioning rod 15 drives the sliding block 14 to slide along the sliding groove 12, and the return spring 20 gradually contracts until the scraper gasket 22 on the arc-shaped scraper 21 is attached to the roller 6, and then the roller 6 is rotated until the soil on the roller 6 is cleaned;

[0022] The bottom of the first top plate 9 is provided with a first fixing block 23, one end of the fixed plate 11 is connected with a second fixing block 24, and the first fixing block 23 and the second fixing block 23 are connected through bolts;

[0023] The upper end surface of the limiting bottom plate 13 is attached to the fixed plate 11, and the upper end surface of the sliding block 14 is lower than the upper end surface of the fixed plate 11;

[0024] The second mounting frame 8 comprises a second top plate 25 and second side plates 26 arranged on both sides of the second top plate 25, the two second side plates 26 are fixed on the flat fork support leg 5 through bolts, the second top plate 25 is provided with a first positioning hole 27 and a second positioning hole 28, the first top plate 9 is provided with a first positioning boss 29 and a second positioning boss 30, the first positioning boss 29 and the second positioning boss 30 are arranged in the first positioning hole 27 and the second positioning hole 28 respectively, a first screw passes through a first screw hole on the first positioning boss 29 and is threadedly connected with a first nut, and a second screw passes through a second screw hole on the second positioning boss 30 and is threadedly connected with a second nut;

[0025] When parking is needed, the driving motor 2 drives the transmission gear 3 to rotate, the transmission gear 3 is engaged with the sector gear 4 to drive the flat fork support leg 5 to rotate with the sector gear 4, so that the flat fork support leg 5 installed on both sides of the rear wheel of the vehicle rotates until the roller 6 is supported on the ground, which is convenient and labor-saving, especially for the elderly;

[0026] After long-term use, the roller 6 is easily covered with mud, especially in rainy and snowy weather, and the mud on the roller 6 can easily get onto the clothes of the user, soiling the clothes. At this time, the positioning rod 15 is only pushed to slide along the sliding groove 12 on the fixed plate 11, and the reset spring 20 is gradually contracted until the scraper pad 22 on the arc-shaped scraper 21 is attached to the roller 6, and then the roller 6 is rotated until the mud on the roller 6 is cleaned, and then the positioning rod 15 is loosened, and the scraper pad 22 is separated from the roller 6 under the action of the reset spring 20.

[0027] The above is only an example and description of the structure of the present application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific embodiments, as long as they do not deviate from the structure of the present application or exceed the scope defined by the present claims, which shall belong to the protection scope of the present application.

Claims

1. A flat fork structure comprising a fixed side plate, characterized by: One side of the fixed side plate is provided with a driving motor, the output end of the driving motor extends to the other side of the fixed side plate and is provided with a transmission gear, the transmission gear is meshed with a sector gear, one side of the sector gear is provided with a flat fork support leg, the outer side is provided with a gear reduction box, the bottom of the flat fork support leg is provided with a roller assembly, the roller assembly comprises a roller, a first mounting frame and a second mounting frame, the roller is installed on the first mounting frame through an axle, the first mounting frame is fixed on the second mounting frame, the first mounting frame comprises a first top plate and first side plates arranged on both sides of the first top plate, one side of the first top plate is provided with a fixed plate, a sliding groove is formed in the fixed plate, a limiting bottom plate is arranged at the bottom, the upper end surface of the limiting bottom plate is connected with a sliding block, the bottom is connected with a positioning rod, the sliding block is arranged in the sliding groove and the upper end surface is connected with a fixed stud, the fixed stud is threadedly connected with a locking nut, one end of the sliding block is connected with a first spring positioning piece, one end of the sliding groove is provided with a second spring positioning piece, a return spring is arranged between the first spring positioning piece and the second spring positioning piece, one end of the positioning rod is connected with an arc-shaped scraper.

2. The flat fork structure according to claim 1, wherein: An arc-shaped groove is formed in the arc-shaped scraper, and a scraper gasket made of rubber material is arranged in the arc-shaped groove.

3. The flat fork structure of claim 1, wherein: A first fixing block is arranged at the bottom of the first top plate, and a second fixing block is arranged at one end of the fixed plate, and the first fixing block and the second fixing block are connected through bolts.

4. The flat fork structure of claim 2, wherein: The upper end surface of the limiting bottom plate is attached to the fixed plate, and the upper end surface of the sliding block is lower than the upper end surface of the fixed plate.

5. The flat fork structure of claim 1, wherein: The second mounting frame comprises a second top plate and second side plates arranged on both sides of the second top plate, the two second side plates are fixed on the flat fork support leg through bolts, the second top plate is provided with a first positioning hole and a second positioning hole, the first top plate is provided with a first positioning boss and a second positioning boss, the first positioning boss and the second positioning boss are arranged in the first positioning hole and the second positioning hole respectively, a first bolt is threadedly connected with a first nut after penetrating a first screw hole in the first positioning boss, and a second bolt is threadedly connected with a second nut after penetrating a second screw hole in the second positioning boss.

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