An electric tricycle frame facilitating adjustment of a rear axle

Abstract

The utility model belongs to electric tricycle technical field, specifically discloses a kind of electric tricycle frame of rear axle for easy adjustment, including vehicle head, the left side of vehicle head is fixed with frame body, and the front and rear between frame body bottom are equipped with front wheel, the bottom of vehicle head is fixed with vehicle chassis, and the top of vehicle chassis is fixed with frame, and the front end and rear end of right side of vehicle head bottom are respectively provided with slide rail. This electric tricycle frame of rear axle for easy adjustment is connected with rear wheel by being movably connected between the front and rear below the inside of mounting bracket, and mounting bracket is moved forward and backward along the slide rail below vehicle chassis, after the interval of mounting bracket is adjusted, shaft body is placed between the adjacent mounting bracket of front and rear, then mounting bracket is tightened, aligns positioning hole and uses bolt two to lock and fix, the symmetrical rear wheel can be assembled outside brake pot of shaft body, with screw reinforcement, facilitate installation, disassembly rear axle structure, solve the problem of inconvenient rear axle assembly.

Description

Technical Field

[0001] This utility model relates to the field of electric tricycle technology, specifically to an electric tricycle frame that facilitates rear axle adjustment. Background Technology

[0002] Electric tricycles differ from human-powered pedal-driven ones. They are powered by batteries, which drive the wheels to rotate. They can carry goods and are called tricycles because they have three tires. If they are equipped with a closed compartment, they can also carry passengers. They are often chosen as a means of transportation.

[0003] The rear tires of electric tricycles are driven by the rear axle structure, which mainly consists of axle housing, motor, axle, differential and braking system. It can quickly control the vehicle's movement and stopping. The rear axle of this type of frame is mostly fixed directly to the bottom of the rear of the frame. The position of the assembly structure cannot be easily adjusted. It requires a lot of strength to install. If there is any gap in the assembly, it is difficult to maintain the stability of the vehicle.

[0004] Now, a new type of electric tricycle frame with an easily adjustable rear axle is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an electric tricycle frame that facilitates rear axle adjustment, so as to solve the problem of inconvenient rear axle assembly mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric tricycle frame for easy rear axle adjustment, comprising a front end, a frame fixed to the left side of the front end, a front wheel mounted between the front and rear ends of the frame bottom, a chassis fixed to the bottom of the front end, a frame fixed to the top of the chassis, slide rails respectively provided at the front and rear ends of the right side of the bottom of the front end, and mounting brackets movably connected in the slide rails, a rear wheel movably connected between the front and rear ends of the lower interior of the mounting bracket, a positioning hole provided between the front and rear ends of the right exterior of the slide rail, two bolts threadedly connected to the front and rear ends of the top of the mounting bracket, an axle body provided between the front and rear ends of the mounting bracket, brake drums respectively mounted at the front and rear ends of the axle body, an axle housing fixed at the center of the axle body, and a motor mounted on the right side of the axle housing.

[0007] As a further technical solution of this utility model, the output end of the motor is fixedly connected to the axle housing force transmission block, and the front and rear brake drums are symmetrically connected to the mounting bracket.

[0008] As a further technical solution of this utility model, a rod is horizontally welded to the front and rear of the top of the frame, and three sets of sliding sleeves are movably sleeved on the outside of the rod. A bolt is threaded to the outer side of the sliding sleeve. A stop bar is fixed between the front and rear sliding sleeves. A slider is welded between the sliding sleeve and the stop bar, and a ball is movably embedded on the surface of the slider. A screw hole is provided between the left and right sides of the outer surface of the rod.

[0009] As a further technical solution of this utility model, the sliding sleeve moves left and right along the surface of the rod body, and the sliding sleeve is symmetrically fixed at the front and rear ends of the stop rod.

[0010] As a further technical solution of this utility model, a slot is provided horizontally on the right side inside the chassis, and a support plate is movably inserted into the slot. A connecting block is fixed on the right side of the support plate, and limit rods are horizontally fixed at the front and rear ends of the bottom left side of the connecting block. Sleeves are fixed at the front and rear ends of the bottom right side of the chassis, and bolts are threadedly connected to the outer side of the sleeves.

[0011] As a further technical solution of this utility model, the support plate moves left and right along the inner wall of the slot, and the limiting rod is horizontally embedded in the sleeve block.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the electric tricycle frame with adjustable rear axle not only realizes the adjustable assembly structure and the rod for adjusting the frame limit, but also extends the support area of ​​the frame. The rear wheels are movably connected between the front and rear sides inside the mounting bracket. The mounting bracket is moved back and forth along the slide rail under the chassis. After adjusting the spacing of the mounting brackets, the axle is placed between the front and rear adjacent mounting brackets. Then the mounting brackets are tightened, the positioning holes are aligned, and bolts are used to lock and fix them. The symmetrical rear wheels can then be assembled on the outside of the brake drum of the axle and reinforced with screws. This makes it convenient to install and disassemble the rear axle structure and also facilitates maintenance. By fixing a frame to the top of the chassis, the sliding sleeve can be moved left and right along the horizontal rod at the top of the frame. With the lubrication of the ball bearings on the surface of the slider, the position of the stop bar can be changed. After aligning with the screw holes on the surface, the bolts are screwed in for reinforcement, preventing the goods inside the frame from shaking out due to vibration. The space above the frame can also be adjusted to form a shielding structure to restrict the movement of goods and help people move or place goods. The support plate is movably inserted into the slot. If the length of the chassis is insufficient to carry the cargo, the support plate is pulled out from the slot and its supporting area is extended on the right side of the chassis. At this time, the limit rods on the lower left side of the connecting block are also embedded in the sleeve block to ensure the stability and smoothness of the support plate movement. Then, the bolts are rotated to tighten the limit rods and lock the position of the support plate to prevent it from automatically resetting. Attached Figure Description

[0013] Figure 1 This is a frontal cross-sectional view of the present invention. Figure 2 This is a side view of the shaft structure of this utility model; Figure 3 This is a side sectional view of the frame structure of this utility model; Figure 4 This is a front view structural diagram of the support plate of this utility model.

[0014] In the diagram: 1. Head; 2. Frame; 3. Front wheel; 4. Chassis; 5. Frame; 6. Limiting rod; 7. Rear wheel; 8. Mounting bracket; 9. Sleeve block; 10. Support plate; 11. Connecting block; 12. Slot; 13. Rod; 14. Sliding sleeve; 15. Screw hole; 16. Bolt 1; 17. Slide rail; 18. Positioning hole; 19. Bolt 2; 20. Brake drum; 21. Axle housing; 22. Shaft; 23. Motor; 24. Stop bar; 25. Slider; 26. Bolt 3; 27. Ball bearing. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 An embodiment of this utility model provides: an electric tricycle frame for easy adjustment of the rear axle, including a front end 1, a frame 2 fixed to the left side of the front end 1, and a front wheel 3 installed between the front and rear ends of the bottom of the frame 2, a chassis 4 fixed to the bottom of the front end 1, and a frame 5 fixed to the top of the chassis 4, a slide rail 17 respectively provided at the front and rear ends of the bottom right side of the front end 1, and a mounting bracket 8 movably connected in the slide rail 17, a rear wheel 7 movably connected between the front and rear ends of the lower part of the mounting bracket 8, a positioning hole 18 provided between the front and rear ends of the right side of the slide rail 17, bolts 19 threadedly connected to the front and rear ends of the top of the mounting bracket 8, an axle 22 provided between the front and rear mounting brackets 8, and brake drums 20 respectively installed at the front and rear ends of the axle 22, an axle housing 21 fixed at the center of the axle 22, and a motor 23 installed on the right side of the axle housing 21; The output end of motor 23 is fixedly connected to the force transmission block of bridge housing 21, and the front and rear brake drums 20 are symmetrically connected to the mounting bracket 8. Specifically, such as Figure 1 and Figure 2As shown, move the mounting bracket 8 back and forth along the slide rail 17 under the chassis 4. After adjusting the spacing of the mounting bracket 8, place the axle 22 between the adjacent mounting brackets 8. Then tighten the mounting bracket 8, align it with the positioning hole 18, and lock it in place with bolt 19. The symmetrical rear wheels 7 can then be assembled on the outside of the brake drum 20 of the axle 22 and reinforced with screws.

[0017] A rod 13 is horizontally welded to the front and rear of the top of the frame 5. Three sets of sliding sleeves 14 are movably sleeved on the outside of the rod 13, and bolts 16 are threaded on the outside of the sliding sleeves 14. A stop bar 24 is fixed between the front and rear sliding sleeves 14. A slider 25 is welded between the sliding sleeves 14 and the stop bar 24, and ball bearings 27 are movably embedded on the surface of the slider 25. Screw holes 15 are provided between the left and right sides of the outer surface of the rod 13. The sliding sleeves 14 move left and right along the surface of the rod 13. The sliding sleeves 14 are symmetrically fixed at the front and rear ends of the stop bar 24. Specifically, such as Figure 1 and Figure 3 As shown, the sliding sleeve 14 moves left and right along the horizontal rod 13 at the top of the frame 5. With the lubrication of the ball bearing 27 on the surface of the slider 25, the position of the stop bar 24 can be changed. After aligning with the screw hole 15 on the surface, the bolt 16 is screwed in for reinforcement, which prevents the goods inside the frame 5 from shaking out due to vibration. It can also adjust the space above the frame 5 to help people move or place goods.

[0018] A slot 12 is horizontally provided on the right side inside the chassis 4, and a support plate 10 is movably inserted into the slot 12. A connecting block 11 is fixed on the right side of the support plate 10, and a limit rod 6 is horizontally fixed at the front and rear ends of the bottom left side of the connecting block 11. A sleeve block 9 is fixed at the front and rear ends of the bottom right side of the chassis 4, and a bolt 26 is threaded on the outer side of the sleeve block 9. The support plate 10 moves left and right along the inner wall of the slot 12, and the limit rod 6 is horizontally embedded in the sleeve block 9. Specifically, such as Figure 1 and Figure 4 As shown, if the length of the chassis 4 is insufficient to carry the cargo, the support plate 10 is pulled out from the slot 12 and its supporting area is extended on the right side of the chassis 4. At this time, the limiting rods 6 on the lower left side of the connecting block 11 are also embedded in the sleeve block 9 to ensure the stability and smoothness of the support plate 10 when it moves. Then, the bolts 3 26 are rotated to press against the limiting rods 6 and lock the position of the support plate 10.

[0019] Furthermore, the motor 23, bridge housing 21, and brake pot 20 are all electrically connected to an external PLC control module to control the opening and closing of the motor 23, bridge housing 21, and brake pot 20 and to preset relevant parameters. The electrical connection relationship and control method between them are existing technologies and will not be described in detail.

[0020] Working principle: In use, the mounting bracket 8 is first moved back and forth along the slide rail 17 under the chassis 4. After adjusting the spacing of the mounting bracket 8, the axle 22 is placed between the adjacent mounting brackets 8. Then, the mounting bracket 8 is tightened, aligned with the positioning hole 18, and locked in place with bolts 19. The symmetrical rear wheels 7 can then be assembled on the outside of the brake drum 20 of the axle 22, reinforced with screws. This facilitates the installation and disassembly of the rear axle structure. Afterward, the sliding sleeve 14 is moved left and right along the transverse rod 13 at the top of the frame 5, and the ball bearings 27 on the surface of the slider 25... With lubrication, the position of the stop lever 24 can be changed, and after aligning with the screw hole 15 on the surface, the bolt 16 is screwed in for reinforcement to prevent the goods inside the frame 5 from shaking out due to vibration. The space above the frame 5 can also be adjusted. If the length of the chassis 4 is insufficient to carry the goods, the support plate 10 is pulled out from the slot 12, and its support area is extended on the right side of the chassis 4. At this time, the limit rods 6 on the lower left side of the connecting block 11 are also embedded in the sleeve block 9 to ensure the stability and smoothness of the support plate 10 when it moves. Then, the bolt 3 26 is rotated to press against the limit rod 6 and lock the position of the support plate 10.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric tricycle frame with an adjustable rear axle, comprising a front end (1), characterized in that: A frame (2) is fixed to the left side of the vehicle head (1), and a front wheel (3) is installed between the front and rear ends of the bottom of the frame (2). A chassis (4) is fixed to the bottom of the vehicle head (1), and a frame (5) is fixed to the top of the chassis (4). A slide rail (17) is provided at the front and rear ends of the bottom right side of the vehicle head (1), and a mounting bracket (8) is movably connected in the slide rail (17). A rear wheel (7) is movably connected between the front and rear ends of the lower part of the mounting bracket (8). A positioning hole (18) is provided between the front and rear ends of the right side of the slide rail (17). Bolts (19) are threaded to the front and rear ends of the top of the mounting bracket (8). A shaft (22) is provided between the front and rear mounting brackets (8), and a brake drum (20) is installed at the front and rear ends of the shaft (22). A bridge housing (21) is fixed at the center of the shaft (22), and a motor (23) is installed on the right side of the bridge housing (21).

2. The electric tricycle frame with an adjustable rear axle according to claim 1, characterized in that: The output end of the motor (23) is fixedly connected to the force transmission block in the bridge housing (21), and the front and rear brake drums (20) are symmetrically connected at the mounting bracket (8).

3. The electric tricycle frame with an adjustable rear axle according to claim 1, characterized in that: The top of the frame (5) is horizontally welded with rods (13) at the front and rear respectively. Three sets of sliding sleeves (14) are movably sleeved on the outside of the rods (13), and bolts (16) are threaded on the outside of the sliding sleeves (14). A stop bar (24) is fixed between the front and rear sliding sleeves (14). A slider (25) is welded between the sliding sleeves (14) and the stop bar (24), and ball bearings (27) are movably embedded on the surface of the slider (25). Screw holes (15) are provided between the left and right sides of the outer surface of the rod (13).

4. The electric tricycle frame with an adjustable rear axle according to claim 3, characterized in that: The sliding sleeve (14) moves left and right along the surface of the rod (13), and the sliding sleeve (14) is symmetrically fixed at the front and rear ends of the stop rod (24).

5. The electric tricycle frame with an adjustable rear axle according to claim 1, characterized in that: A slot (12) is provided horizontally on the right side inside the chassis (4), and a support plate (10) is movably inserted into the slot (12). A connecting block (11) is fixed on the right side of the support plate (10), and a limit rod (6) is fixed horizontally at the front and rear ends of the bottom left side of the connecting block (11). A sleeve block (9) is fixed at the front and rear ends of the bottom right side of the chassis (4), and a bolt (26) is threadedly connected to the outer side of the sleeve block (9).

6. The electric tricycle frame with an adjustable rear axle according to claim 5, characterized in that: The support plate (10) moves left and right along the inner wall of the slot (12), and the limiting rod (6) is horizontally embedded in the sleeve block (9).

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