Rear cradle for vehicle

Abstract

The utility model relates to the technical field of motorcycle parts, and provides a rear cradle for a vehicle, which comprises two symmetrically arranged rear cradle support arms, a hollow connecting beam fixedly connected between the opposite surfaces of the two rear cradle support arms, and a movable plate arranged on one side of the connecting beam, and the two limiting rods symmetrically penetrate through and are slidably connected to one side surface of the movable plate. A motor drives a screw rod to rotate, a screw sleeve drives a movable plate to move, so that a mud scraping plate makes contact with a wheel, along with rotation of the wheel, the mud scraping plate can scrape and clean mud impurities attached to and left on the wheel, meanwhile, through cooperation of a limiting rod and a spring, the contact pressure of the mud scraping plate and the wheel can be adjusted in a self-adaptive mode, and the mud scraping effect is improved. Therefore, the effect of cleaning the soil impurities attached to the wheels of the motorcycle is achieved, and the using effect and the driving safety of the rear cradle are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle parts, in particular to a rear cradle for a vehicle. Background Art

[0002] The rear swingarm is also commonly called: rear flat fork, flat fork, rear fork, etc. It is a component of the motorcycle suspension. It is used to connect the rear wheel to the motorcycle body, frame, shock absorber and other parts. It plays the role of bearing the pressure of the body, fixing the rear wheel and maintaining the stability of the body.

[0003] The authorized patent with the known application number CN202120204763.3 discloses a rear cradle for an off-road adult track vehicle. Its background technology raises the problem that "the overall structure of the rear cradle of motorcycles currently on the market is complex, difficult to assemble, and insufficient in strength. After long-term use, the rear cradle is easily deformed and cracked, and the force on both sides of the motorcycle frame is uneven, which reduces the service life of the motorcycle rear cradle and may even cause the rear cradle to break, seriously affecting the driver's life safety." Therefore, the technical solution to this problem is "including a symmetrically arranged rear cradle left tube and rear cradle right tube and a rear cradle pivot tube connecting the rear cradle left tube and the rear cradle right tube, the rear cradle left tube and the rear cradle right tube are welded and fixed with a rear cradle connecting plate, and support plates are obliquely arranged at both ends of the rear cradle connecting plate" and so on.

[0004] However, in the implementation of related technologies, it was found that the above technical solution has the following problems: although it achieves the effect of improving the stability of the rear cradle and the overall structural strength through the provided technical solution, it is not convenient to clean the mud attached to the motorcycle wheels during use. When riding on muddy roads, the residual mud attached to the wheels can easily reduce the friction between the wheels and the ground, making it easy for the vehicle to become unbalanced and fall, thereby reducing the use effect of the rear cradle and riding safety. Utility Model Content

[0005] The utility model provides a rear cradle for a vehicle, which solves the problem in the related art that it is inconvenient to clean the mud attached to the wheels of a motorcycle.

[0006] The technical solution of the utility model is as follows: a rear cradle for a vehicle, comprising: two symmetrically arranged rear cradle arms;

[0007] A connecting beam fixedly connected between the opposite surfaces of the two rear cradle arms and having a hollow interior;

[0008] A movable plate provided on one side of the connecting beam;

[0009] Two limiting rods symmetrically extending through and slidingly connected to one side of the movable plate;

[0010] A mounting shell fixedly connected to one end of the limiting rod;

[0011] A spring sleeved on the surface of the limiting rod and with both ends connected to the mounting shell and the movable plate respectively;

[0012] A scraper blade detachably mounted in the mounting shell, wherein the scraper blade and one side of the mounting shell are both in an inwardly concave arc structure;

[0013] and a moving mechanism which is arranged on the connecting beam and connected to the movable plate. The movable plate drives the scraper to move through the moving mechanism so as to make the scraper contact with or separate from the wheel.

[0014] Preferably, the moving mechanism includes a screw rotatably connected to one side of the connecting beam, a screw sleeve threadedly connected to the surface of the screw, a guide rod symmetrically fixedly installed on one side of the movable plate and slidingly connected to the connecting beam, and a power part arranged in the connecting beam, and the screw sleeve is connected to the movable plate.

[0015] The power component includes a motor fixedly mounted on one side of the inner wall of the connecting beam. The output end of the motor movably passes through the connecting beam and is connected to the screw rod. One end of the guide rod extending to the inside of the connecting beam is connected to a boss.

[0016] Preferably, one end of each of the two rear cradle arms is provided with an inner cavity, an extension arm is slidably connected in the inner cavity, and a limiting mechanism for fixing the extension arm is provided in the inner cavity.

[0017] Preferably, the limiting mechanism includes positioning blocks fixedly mounted on the upper and lower sides of the extension arm and a locking component provided in the inner cavity to fix the extension arm. Positioning grooves slidably connected to the positioning blocks are provided on the upper and lower sides of the inner wall of the inner cavity.

[0018] The locking component includes a bolt rod threadedly connected to one side of the rear cradle support arm and a U-shaped block rotatably connected to the surface of the bolt rod. One side of the extension arm is provided with a plurality of screw holes threadedly connected to the bolt rod, and one side of the extension arm is provided with slots on both sides of the screw holes that cooperate with the U-shaped block.

[0019] Preferably, two groups of reinforcement blocks are symmetrically fixedly installed at the corners between the two rear cradle arms and the connecting beam, and the reinforcement blocks are triangular in shape.

[0020] The working principle and beneficial effects of the utility model are as follows:

[0021] When in use, the motor drives the screw to rotate, so that the screw sleeve drives the movable plate to move, so that the scraper plate contacts the wheel. As the wheel rotates, the scraper plate can scrape and clean the mud and impurities remaining on the wheel. At the same time, through the cooperation of the limit rod and the spring, the contact pressure between the scraper plate and the wheel can be adaptively adjusted to prevent resistance to the wheel from affecting its rotation. Therefore, the mud and impurities attached to the motorcycle wheel are cleaned, and the motorcycle is prevented from slipping and falling due to the attached mud when driving on muddy roads, thereby ensuring driving stability, reducing the impact of mud on the wheel and the rear cradle, reducing the frequency of mechanical failures, and effectively improving the use effect and driving safety of the rear cradle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the connecting beam of the utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the rear cradle support arm of the present invention;

[0026] Figure 4 This is a schematic diagram of the partial three-dimensional structure of the U-shaped card block of the utility model;

[0027] In the figure: 1. rear cradle support arm; 2. connecting beam; 3. movable plate; 4. limiting rod; 5. mounting shell; 6. spring; 7. scraper; 8. screw; 9. screw sleeve; 10. guide rod; 11. motor; 12. inner cavity; 13. extension arm; 14. positioning block; 15. positioning groove; 16. bolt rod; 17. U-shaped clamping block; 18. screw hole; 19. clamping groove; 20. reinforcement block. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figure 1 - Figure 4 The utility model provides a rear cradle for a vehicle, comprising: two symmetrically arranged rear cradle arms 1;

[0031] A hollow connecting beam 2 fixedly connected between opposite surfaces of the two rear cradle arms 1;

[0032] A movable plate 3 provided on one side of the connecting beam 2;

[0033] Two limiting rods 4 symmetrically extending through and slidingly connected to one side of the movable plate 3;

[0034] A mounting shell 5 fixedly connected to one end of the limiting rod 4;

[0035] A spring 6 is sleeved on the surface of the limiting rod 4 and connected at both ends to the mounting shell 5 and the movable plate 3;

[0036] The scraper blade 7 is removably mounted within the mounting housing 5. Both the scraper blade 7 and one side of the mounting housing 5 are concave arc-shaped structures. The scraper blade 7's shape and structure match the contours of the motorcycle wheel. The scraper blade 7 is made of a soft material, such as rubber or silicone, to conform to the wheel. The scraper blade 7 is mounted with screws or bolts, making it easy to disassemble for maintenance and cleaning.

[0037] And a moving mechanism is provided on the connecting beam 2 and connected to the movable plate 3. The movable plate 3 drives the scraper 7 to move through the moving mechanism so as to make it contact with or separate from the wheel.

[0038] The moving mechanism includes a screw 8 rotatably connected to one side of the connecting beam 2, a screw sleeve 9 threadedly connected to the surface of the screw 8, a guide rod 10 symmetrically fixedly mounted on one side of the movable plate 3 and slidingly connected to the connecting beam 2, and a power member provided in the connecting beam 2, and the screw sleeve 9 is connected to the movable plate 3.

[0039] The power part includes a motor 11 fixedly mounted on one side of the inner wall of the connecting beam 2. The output end of the motor 11 is movable through the connecting beam 2 and connected to the screw 8. The guide rod 10 extends to one end inside the connecting beam 2 and is connected to a boss, wherein the diameter of the boss is larger than the diameter of the guide rod 10 to prevent the guide rod 10 from slipping out of the connecting beam 2.

[0040] The technical solution provided by this embodiment is as follows: when in use, by installing the device on a motorcycle for use, when the motorcycle is traveling on a muddy road, the motor 11 drives the screw 8 to rotate, so that the screw sleeve 9 drives the movable plate 3 to move, and the movable plate 3 drives the guide rod 10 to slide, so as to ensure the movement stability of the movable plate 3. At the same time, the movable plate 3 drives the mounting shell 5 to move, so that the scraper 7 contacts the wheel, otherwise it does not contact. As the wheel rotates, the scraper 7 can scrape and clean the mud and impurities remaining on the wheel. At the same time, the cooperation of the limit rod 4 and the spring 6 can make the contact pressure between the scraper 7 and the wheel adaptively adjust, so as to ensure the cleaning effect of the scraper 7 while temporarily separating from the wheel when a lot of mud is attached to the wheel, preventing the scraper 7 from generating resistance to the wheel due to excessive mud and affecting its rotation. Therefore, the effect of cleaning the mud and impurities attached to the motorcycle wheel is achieved, and the motorcycle is prevented from slipping and falling due to the attached mud when traveling on a muddy road, thereby ensuring the driving stability and effectively improving the use effect of the rear cradle and the driving safety of the motorcycle.

[0041] Furthermore, an inner cavity 12 is formed at one end of each of the two rear cradle arms 1 , an extension arm 13 is slidably connected in the inner cavity 12 , and a limiting mechanism for fixing the extension arm 13 is provided in the inner cavity 12 .

[0042] The limiting mechanism includes positioning blocks 14 fixedly mounted on the upper and lower sides of the extension arm 13 and a locking component provided in the inner cavity 12 to fix the extension arm 13. Positioning grooves 15 slidably connected to the positioning blocks 14 are provided on the upper and lower sides of the inner wall of the inner cavity 12.

[0043] The locking component includes a bolt rod 16 threadedly connected to one side of the rear cradle arm 1 and a U-shaped block 17 rotatably connected to the surface of the bolt rod 16. A side of the extension arm 13 is provided with a plurality of screw holes 18 threadedly connected to the bolt rod 16, and a side of the extension arm 13 is provided with a card slot 19 on both sides of the screw hole 18, which cooperates with the U-shaped block 17.

[0044] Specifically, when the rear cradle arm 1 is in use, the bolt rod 16 is separated from the screw hole 18 by rotating the bolt rod 16, and the U-shaped block 17 is driven to separate from the slot 19, and then the extension arm 13 is moved to slide in the inner cavity 12, and at the same time, the positioning block 14 is driven to slide in the positioning slot 15, so as to adjust the extended length of the extension arm 13. After adjusting to the appropriate position, the bolt rod 16 and the corresponding screw hole 18 are rotated to screw the extension arm 13 to fix it, and at the same time, the U-shaped block 17 is driven to move by the bolt rod 16 so that it is engaged with the slot 19, which is convenient for further reinforcement of the extension arm 13, thereby achieving the effect of facilitating the adjustment of the length of the rear cradle arm 1, and facilitating flexible adjustment according to the size of the wheel, which is beneficial to improving the overall applicability and flexibility of the rear cradle.

[0045] Example 2

[0046] Based on the first embodiment, in this embodiment, two groups of reinforcing blocks 20 are symmetrically fixedly installed at the corners between the two rear cradle arms 1 and the connecting beam 2 , and the reinforcing blocks 20 are triangular in shape.

[0047] The technical solution provided by this embodiment is: by providing the reinforcement block 20, the connection strength between the rear cradle support arm 1 and the connecting beam 2 can be greatly improved, so as to enhance the firmness and stability of the connection between the two.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rear cradle for a vehicle, characterized in that: include: Two symmetrically arranged rear cradle arms (1); A connecting beam (2) fixedly connected between opposite surfaces of the two rear cradle arms (1) and having a hollow interior; A movable plate (3) provided on one side of the connecting beam (2); Two limiting rods (4) symmetrically extending through and slidingly connected to one side of the movable plate (3); A mounting shell (5) fixedly connected to one end of the limiting rod (4); A spring (6) sleeved on the surface of the limiting rod (4) and having two ends connected to the mounting shell (5) and the movable plate (3) respectively; A scraper (7) detachably mounted in the mounting shell (5), wherein one side of the scraper (7) and the mounting shell (5) both have an inwardly concave arc-shaped structure; And a moving mechanism is provided on the connecting beam (2) and connected to the movable plate (3); the movable plate (3) drives the scraper (7) to move via the moving mechanism so as to make it contact with or separate from the wheel.

2. A rear cradle for a vehicle according to claim 1, characterized in that: The moving mechanism comprises a screw (8) rotatably connected to a side of the connecting beam (2), a screw sleeve (9) threadedly connected to the surface of the screw (8), a guide rod (10) symmetrically fixedly mounted on a side of the movable plate (3) and slidably connected to the connecting beam (2), and a power member provided in the connecting beam (2), wherein the screw sleeve (9) is connected to the movable plate (3).

3. A rear cradle for a vehicle according to claim 2, characterized in that: The power component comprises a motor (11) fixedly mounted on one side of the inner wall of the connecting beam (2); the output end of the motor (11) movably passes through the connecting beam (2) and is connected to the screw rod (8); and one end of the guide rod (10) extending to the interior of the connecting beam (2) is connected to a boss.

4. The rear cradle for a vehicle according to claim 1, characterized in that: An inner cavity (12) is provided at one end of each of the two rear cradle support arms (1), an extension arm (13) is slidably connected in the inner cavity (12), and a limiting mechanism for fixing the extension arm (13) is provided in the inner cavity (12).

5. The vehicle rear cradle according to claim 4, characterized in that: The limiting mechanism comprises a positioning block (14) fixedly mounted on the upper and lower side surfaces of the extension arm (13) and a locking component provided in the inner cavity (12) for fixing the extension arm (13); and positioning grooves (15) slidably connected to the positioning block (14) are provided on the upper and lower sides of the inner wall of the inner cavity (12).

6. The rear cradle for a vehicle according to claim 5, characterized in that: The locking component comprises a bolt rod (16) threadedly connected to a side of the rear cradle support arm (1) and a U-shaped block (17) rotatably connected to the surface of the bolt rod (16); a side of the extension arm (13) is provided with a plurality of screw holes (18) threadedly connected to the bolt rod (16); and a side of the extension arm (13) is provided with a card slot (19) on both sides of the screw hole (18) and plugged into the U-shaped block (17).

7. The vehicle rear cradle according to claim 1, characterized in that: Two groups of reinforcement blocks (20) are symmetrically fixedly installed at the corners between the two rear cradle arms (1) and the connecting beam (2), and the reinforcement blocks (20) are triangular in shape.

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