Cross-country motorcycle frame

Abstract

The utility model discloses a cross-country motorcycle frame which comprises a frame body, auxiliary assemblies are arranged on the left side and the right side of the rear portion of the frame body, and a buffering assembly is movably connected to the rear side of the frame body. Through the first auxiliary leg, the second auxiliary leg and the auxiliary wheels on the two sides, the situation that a child cannot well master balance in the riding process, and consequently the child falls down can be prevented, and through the first damper, when the auxiliary wheels on one side grind stones in the riding process, the situation that the whole cross-country motorcycle inclines towards one side, and consequently the child falls down can be prevented; when the bicycle is ridden on an uneven road surface, a buffering effect can be achieved on generated bumping through the buffering assembly, the second dampers can be extruded through the connecting rods on the two sides while the mounting frame moves, the elastic force generated when the springs are rapidly released can be eliminated through the second dampers, and the better buffering effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of off-road motorcycle frames, in particular to an off-road motorcycle frame. Background Art

[0002] The frame is one of the most critical components of a motorcycle. Its structure and performance significantly influence the overall vehicle's parameters and performance, making the selection of the frame structure crucial. Children's off-road motorcycles are mostly used by young children, who are prone to falling when first learning to ride. Therefore, a frame suitable for children's off-road motorcycles is in high demand.

[0003] However, ordinary children's off-road motorcycle frames do not have training wheels, which means that when child beginners first come into contact with off-road motorcycle riding, they are very likely to fall and get injured due to lack of balance. Therefore, when children are just starting to learn, most parents will follow behind to support their children to prevent them from falling. However, this method is more troublesome, and ordinary children's off-road motorcycles have poor shock absorption effects, which makes it very easy to cause bumps when riding on uneven roads, resulting in poor riding comfort. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A cross-country motorcycle frame comprises a frame body, wherein auxiliary components are arranged on both left and right sides of the rear of the frame body, and a buffer component is movably connected to the rear side of the frame body.

[0006] A further improvement of the technical solution of the present utility model is that: the frame body includes a vertical tube, and two main frames arranged in a left and right mirror image are fixedly connected to the surface of the vertical tube, and a reinforcing tube 1 is fixedly connected to the upper side of the two main frames close to each other, and a reinforcing tube 2 is fixedly connected to the lower side of the two main frames close to each other, and a seat cushion mounting frame is fixedly connected to the rear side of the two main frames on the left and right sides, and connecting tubes are fixedly connected to the left and right sides below the seat cushion mounting frame, and a rotating frame 1 is fixedly connected to the surface of the two connecting tubes, and the other ends of the left and right connecting tubes are respectively fixedly connected to the left and right main frames, and a fixing tube 1 is fixedly connected to the side of the two connecting tubes close to each other, and a fixing tube 2 is fixedly connected to the rear side of the side of the two main frames close to each other, and a mounting plate is fixedly connected to the side of the left and right main frames close to the fixed tube 2, and the front surfaces of the left and right mounting plates are respectively fixedly connected to the outer walls of the left and right connecting tubes.

[0007] A further improvement of the technical solution of the present utility model is that: the auxiliary component includes two auxiliary legs 1 arranged in parallel on the left and right, two mounting bolts are movably connected to the top of the auxiliary leg 1, the two mounting bolts are movably connected to the inside of the mounting plate, nuts are threadedly connected to the surfaces of the two mounting bolts, the auxiliary leg 1 is rotatably connected to the auxiliary leg 2 below, the middle parts of the surfaces of the auxiliary leg 1 and the auxiliary leg 2 are fixedly connected to the rotating frame 2, the inner sides of the two rotating frames 2 are rotatably connected to the damper 1, and the auxiliary leg 2 is rotatably connected to the auxiliary wheel on the side away from the auxiliary leg 1.

[0008] A further improvement of the technical solution of the present utility model is that: the buffer assembly includes a sleeve 1, the inner wall of the sleeve 1 is movably connected to the outer wall of the fixed tube 1, the left and right sides of the outer surface of the sleeve 1 are fixedly connected to a fixing frame 1, the upper and lower sides of the two fixed frames 1 on the left and right are rotatably connected to a connecting arm 1, the inner sides of the two connecting arms 1 on the same side of the left and right are rotatably connected to a movable block, the upper and lower sides of the surfaces of the two movable blocks on the left and right are rotatably connected to connecting arms 2, the inner sides of the two connecting arms 2 on the same side of the left and right are rotatably connected to a fixed frame 2, the rear surfaces of the two fixed frames 2 on the left and right are fixedly connected to sleeve 2, the inner sides of the two movable blocks on the left and right are movably connected to a limiting rod, the left and right ends of the limiting rod respectively pass through the left and right movable blocks, and the surface of the limiting rod is located on the inner sides of the left and right movable blocks and is sleeved with a spring.

[0009] A further improvement of the technical solution of the present utility model is that: the inner wall of the second sleeve is movably connected to a fixed rod, and the left and right sides of the fixed rod are fixedly connected to mounting brackets, the front sides of the left and right mounting brackets are fixedly connected to the third sleeve, the inner wall of the third sleeve is movably connected to the outer wall of the second fixed tube, and the front sides of the left and right mounting brackets that are away from each other are fixedly connected to the connecting rod, and the surfaces of the left and right connecting rods are rotatably connected to the second damper, and the other ends of the left and right dampers are respectively rotatably connected to the inner sides of the left and right rotating brackets.

[0010] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0011] 1. The utility model provides an off-road motorcycle frame. Through the auxiliary components, when a child rider is riding, the auxiliary legs 1, the auxiliary legs 2 and the auxiliary wheels on both sides can prevent the child from falling off the motorcycle due to poor balance during riding. In addition, through the damper 1, if the auxiliary wheel on one side runs over a stone during riding, the off-road motorcycle as a whole can be prevented from tilting to one side and falling off. Moreover, when the child rider has become proficient in driving an off-road motorcycle, the entire auxiliary component can be removed by removing the mounting bolts on the left and right sides. This method also makes the frame more flexible and practical.

[0012] 2. The utility model provides an off-road motorcycle frame. When riding on an uneven road surface, the rear wheel of the off-road motorcycle will produce a bumpy phenomenon through a buffer assembly. When the rear wheel bumps, it will drive the mounting frames on both sides to move up and down. When the mounting frames move, the second sleeve on the surface moves under the action of the fixed rod, and the first and second connecting arms are squeezed by the second sleeve, so that the movable blocks on both sides move toward each other to squeeze the spring, thereby achieving the effect of buffering the bumps. At the same time as the mounting frames move, the second damper is also squeezed by the connecting rods on both sides. The elastic force generated when the spring is quickly released can be eliminated by the second damper, thereby achieving a better buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the frame of the utility model;

[0015] Figure 3 This is a schematic diagram of the semi-exploded structure of the auxiliary component of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the buffer component of the present utility model;

[0017] Figure 5 This is a schematic structural diagram of the buffer component of the present utility model.

[0018] Figure: 1. Frame body; 2. Auxiliary components; 3. Buffer components; 101. Stem tube; 102. Main frame; 103. Reinforcement tube 1; 104. Reinforcement tube 2; 105. Seat mounting bracket; 106. Connecting tube; 107. Fixed tube 1; 108. Fixed tube 2; 109. Mounting plate; 110. Rotating bracket 1; 201. Auxiliary leg 1; 202. Mounting bolts; 203. Nuts; 204. Auxiliary leg 2 ; 205, rotating frame two; 206, damper one; 207, auxiliary wheel; 301, sleeve one; 302, fixed frame one; 303, connecting arm one; 304, movable block; 305, connecting arm two; 306, fixed frame two; 307, sleeve two; 308, limit rod; 309, spring; 310, sleeve three; 311, mounting frame; 312, fixed rod; 313, connecting rod; 314, damper two. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods:

[0020] like Figure 1As shown, the utility model provides an off-road motorcycle frame, including a frame body 1, auxiliary components 2 are arranged on the left and right sides of the rear of the frame body 1, and a buffer component 3 is movably connected to the rear side of the frame body 1.

[0021] The auxiliary component 2 can prevent children from falling when they first ride an off-road motorcycle, thereby protecting the child rider. After the child learns to ride, the auxiliary component 2 can be removed, making the frame more flexible. The buffer component 3 provided can provide a better shock-absorbing and buffering effect when riding on uneven roads, thereby improving the rider's comfort.

[0022] like Figure 2 As shown, the frame body 1 includes a standpipe 101, and two main frames 102 arranged in a mirror image on the left and right sides are fixedly connected to the surface of the standpipe 101. A reinforcing tube 103 is fixedly connected to the upper side of the two main frames 102 close to each other, and a reinforcing tube 2 104 is fixedly connected to the lower side of the two main frames 102 close to each other. A seat cushion mounting frame 105 is fixedly connected to the rear side of the two main frames 102. Connecting tubes 106 are fixedly connected to the left and right sides of the seat cushion mounting frame 105. The surfaces of the two connecting tubes 106 are fixedly connected to the seat cushion mounting frame 105. It is connected to a rotating frame 110, and the other ends of the left and right connecting tubes 106 are fixedly connected to the left and right main frames 102 respectively. The sides of the left and right connecting tubes 106 that are close to each other are fixedly connected to a fixed tube 107, and the lower rear side of the sides of the left and right main frames 102 that are close to each other is fixedly connected to a fixed tube 2 108. The rear sides of the left and right main frames 102 close to the fixed tube 2 108 are fixedly connected to mounting plates 109, and the front surfaces of the left and right mounting plates 109 are fixedly connected to the outer walls of the left and right connecting tubes 106 respectively.

[0023] The main frame 102 can wrap the entire engine, which not only protects the engine and prevents damage to the engine when the vehicle falls, but also makes the entire frame structure more solid.

[0024] like Figure 3 As shown, the auxiliary component 2 includes two auxiliary legs 201 arranged in parallel on the left and right sides, two mounting bolts 202 are movably connected to the top of the auxiliary leg 1 201, the two mounting bolts 202 are movably connected to the inside of the mounting plate 109, and nuts 203 are threadedly connected to the surfaces of the two mounting bolts 202. An auxiliary leg 2 204 is rotatably connected to the bottom of the auxiliary leg 1 201, and a rotating frame 2 205 is fixedly connected to the middle of the surface of the auxiliary leg 1 201 and the auxiliary leg 2 204. The inner sides of the two rotating frames 205 are rotatably connected to a damper 1 206, and the auxiliary leg 2 204 is rotatably connected to an auxiliary wheel 207 on the side away from the auxiliary leg 1 201.

[0025] When a child is a beginner riding, the auxiliary legs 1 201, the auxiliary legs 204 and the auxiliary wheels 207 on both sides can prevent the child from falling off the motorcycle due to a poor balance. In addition, the damper 1 206 can prevent the entire off-road motorcycle from tilting to one side and causing a fall if the auxiliary wheel 207 on one side runs over a stone during riding. When the child rider can already skillfully ride the off-road motorcycle, the entire auxiliary assembly 2 can be removed by removing the mounting bolts 202 on the left and right sides. This method also makes the frame more flexible and practical.

[0026] like Figure 4-5 As shown, the buffer assembly 3 includes a sleeve 1 301, the inner wall of the sleeve 1 301 is movably connected to the outer wall of the fixed tube 107, the left and right sides of the outer surface of the sleeve 1 301 are fixedly connected to the fixed frame 1 302, the upper and lower sides of the left and right fixed frames 1 302 are rotatably connected to the connecting arm 1 303, the inner sides of the two connecting arms 1 303 on the same side are rotatably connected to the movable block 304, the upper and lower sides of the surfaces of the left and right movable blocks 304 are rotatably connected to the connecting arm 2 305, the inner sides of the two connecting arms 2 305 on the same side are rotatably connected to the fixed frame 2 306, the rear surfaces of the left and right fixed frames 2 306 are fixedly connected to the sleeve 2 307, the inner sides of the left and right movable blocks 304 are movably connected to the limiting rod 308, the left and right ends of the limiting rod 308 respectively pass through the left and right movable blocks 304, and the surface of the limiting rod 308 is located on the inner side of the left and right movable blocks 304 and is sleeved with a spring 309.

[0027] The inner wall of sleeve 2 307 is movably connected with a fixing rod 312, and the left and right sides of the fixing rod 312 are fixedly connected with mounting brackets 311, and the front sides of the left and right mounting brackets 311 are fixedly connected with sleeve 310, and the inner wall of sleeve 310 is movably connected with the outer wall of fixed tube 2 108, and the front sides of the left and right mounting brackets 311 that are away from each other are fixedly connected with connecting rod 313, and the surfaces of the left and right connecting rods 313 are rotatably connected with damper 2 314, and the other ends of the left and right damper 2 314 are rotatably connected with the inner sides of the left and right rotating brackets 110 respectively.

[0028] When riding on an uneven road, the rear wheel of the off-road motorcycle will produce a bumpy phenomenon. When the rear wheel bumps, it will drive the mounting brackets 311 on both sides to move up and down. When the mounting brackets 311 move, the sleeve three 310 will rotate on the surface of the fixed tube 2 108, and under the action of the fixed rod 312, the sleeve two 307 on the surface will move, and the connecting arm 1 303 and the connecting arm 2 305 will be squeezed by the sleeve two 307, so that the movable blocks 304 on both sides move toward each other and squeeze the spring 309 on the surface of the limit rod 308, thereby achieving the effect of buffering the bumps. At the same time as the mounting bracket 311 moves, the connecting rods 313 on both sides will also squeeze the damper 2 314. The damper 2 314 can eliminate the elastic force generated when the spring 309 is quickly released, thereby achieving a better buffering effect. When the connecting arm 1 303 and the connecting arm 2 305 are squeezed, the sleeve one 301 will rotate on the surface of the fixed tube 107.

[0029] The following is a detailed description of the working principle of the off-road motorcycle frame.

[0030] like Figure 1-5 As shown, the main frame 102 can wrap the entire engine, which not only protects the engine and prevents damage to the engine when falling, but also makes the entire frame structure more solid. When a child rider is riding, the auxiliary legs 1 201, auxiliary legs 204 and auxiliary wheels 207 on both sides can prevent the child from falling due to poor balance when riding. In addition, the damper 1 206 can prevent the off-road motorcycle from tilting to one side and falling if the auxiliary wheel 207 on one side runs over a stone during riding. When the child rider can already skillfully drive the off-road motorcycle, the entire auxiliary assembly 2 can be removed by removing the mounting bolts 202 on the left and right sides. This method also makes the frame more flexible and practical. When riding on the road, the rear wheel of the off-road motorcycle will produce bumps. When the rear wheel bumps, it may drive the mounting brackets 311 on both sides to move up and down. When the mounting brackets move, the sleeve three 310 will rotate on the surface of the fixed tube 2 108, and under the action of the fixed rod 312, the sleeve two 307 on the surface will move, and the connecting arm 1 303 and the connecting arm 2 305 will be squeezed by the sleeve two 307, so that the movable blocks 304 on both sides move toward each other to squeeze the spring 309 on the surface of the limit rod 308, thereby achieving the effect of buffering the bumps. In addition, when the mounting bracket 311 moves, the connecting rods 313 on both sides will also squeeze the damper 2 314. The damper 2 314 can eliminate the elastic force generated when the spring 309 is quickly released, thereby achieving a better buffering effect.

[0031] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An off-road motorcycle frame, comprising a frame body (1), characterized in that: Auxiliary components (2) are provided on both left and right sides of the rear of the vehicle frame body (1), and a buffer component (3) is movably connected to the rear side of the vehicle frame body (1); The frame body (1) comprises a vertical tube (101), two main frames (102) arranged in a mirror image on the left and right sides are fixedly connected to the surface of the vertical tube (101), a reinforcing tube (103) is fixedly connected to the upper side of the two main frames (102) on the left and right sides where they are close to each other, a reinforcing tube (104) is fixedly connected to the lower side of the two main frames (102) on the left and right sides where they are close to each other, a seat cushion mounting frame (105) is fixedly connected to the rear side of the two main frames (102), and connecting pipes (106) are fixedly connected to the left and right sides below the seat cushion mounting frame (105), and the surfaces of the two connecting pipes (106) are fixedly connected. A rotating frame (110) is connected, and the other ends of the left and right connecting tubes (106) are fixedly connected to the left and right main frames (102) respectively. The sides of the left and right connecting tubes (106) close to each other are fixedly connected to a fixed tube (107). The lower rear side of the sides of the left and right main frames (102) close to each other is fixedly connected to a fixed tube (108). The rear side of the left and right main frames (102) close to the fixed tube (108) is fixedly connected to a mounting plate (109). The front surfaces of the left and right mounting plates (109) are fixedly connected to the outer walls of the left and right connecting tubes (106) respectively. The auxiliary component (2) includes two auxiliary legs (201) arranged parallel to each other on the left and right sides, two mounting bolts (202) are movably connected to the upper part of the auxiliary leg (201), the two mounting bolts (202) are movably connected to the inside of the mounting plate (109), the surfaces of the two mounting bolts (202) are threadedly connected with nuts (203), the lower part of the auxiliary leg (201) is rotatably connected to the auxiliary leg (204), the middle part of the surface of the auxiliary leg (201) and the auxiliary leg (204) are fixedly connected to the rotating frame (205), the inner side of the two rotating frames (205) is rotatably connected to the damper (206), and the side of the auxiliary leg (204) away from the auxiliary leg (201) is rotatably connected to the auxiliary wheel (207); The buffer assembly (3) includes a sleeve (301), the inner wall of the sleeve (301) is movably connected to the outer wall of the fixed tube (107), the outer surface of the sleeve (301) is fixedly connected to a fixed frame (302) on both the left and right sides, the upper and lower sides of the two fixed frames (302) on the left and right sides are rotatably connected to a connecting arm (303), the inner sides of the two connecting arms (303) on the same side are rotatably connected to a movable block (304), and the upper and lower sides of the surfaces of the two movable blocks (304) on the left and right sides are rotatably connected to A second connecting arm (305) is provided. The inner sides of the two connecting arms (305) on the same side are rotatably connected to a second fixing frame (306). The rear surfaces of the two second fixing frames (306) on the left and right sides are fixedly connected to a second sleeve (307). The inner sides of the two movable blocks (304) on the left and right sides are movably connected to a limiting rod (308). The left and right ends of the limiting rod (308) respectively penetrate the two movable blocks (304) on the left and right sides. The surface of the limiting rod (308) is located on the inner sides of the two movable blocks (304) on the left and right sides and is sleeved with a spring (309).

2. The off-road motorcycle frame according to claim 1, characterized in that: The inner wall of the second sleeve (307) is movably connected to a fixed rod (312), and the left and right sides of the fixed rod (312) are fixedly connected to mounting brackets (311). The front sides of the left and right mounting brackets (311) are fixedly connected to the third sleeve (310). The inner wall of the third sleeve (310) is movably connected to the outer wall of the second fixed pipe (108). The front sides of the left and right mounting brackets (311) are fixedly connected to a connecting rod (313). The surfaces of the left and right connecting rods (313) are rotatably connected to the second damper (314). The other ends of the left and right dampers (314) are rotatably connected to the inner sides of the left and right rotating brackets (110).

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