Tube-sheet combined kart frame structure

Abstract

The invention discloses a tube-sheet combined kart frame structure, belonging to the field of karts. The invention comprises a frame left tube, a frame right tube, a chassis left lower tube, a chassis right lower tube, a chassis left lower outer tube, and a chassis right lower outer tube, wherein the rear ends of the frame left tube and the frame right tube are respectively tilted downward and connected to form an integrated structure through a rear tube, and the chassis left lower outer tube and the chassis right lower outer tube are connected to form an integrated structure through a front lower tube; by arranging a battery tray, a transmission bearing frame chassis seat, a gear box bracket, etc. at the rear end of the kart, the engine, battery, gear box, etc. can be installed at the rear end of the kart, the weight of the rider can be balanced, and the chassis of the whole vehicle is parallel to the driving ground, thereby improving the stability of the vehicle body.

Description

Technical Field

[0001] The invention relates to the field of go-karts, and in particular to a tube-sheet combined go-kart frame structure. Background Art

[0002] The existing four-wheel kart frames are mostly four-wheel integrated designs, and the engine is generally installed between the front and rear wheels, which cannot balance the weight of the rider. This structure is prone to bumps during driving, and the rider's comfort is poor, which is not conducive to long-term riding. Summary of the invention

[0003] The object of the present invention is to provide a tube-sheet combined kart frame structure with compact structure and high stability.

[0004] The technical scheme of the present invention is: a tube-sheet combined kart frame structure, comprising a frame left tube, a frame right tube, a chassis left lower tube, a chassis right lower tube, a chassis left lower outer tube, and a chassis right lower outer tube, the rear ends of the frame left tube and the frame right tube are respectively tilted downward and connected to form an integrated structure through a rear tube, and the chassis left lower outer tube and the chassis right lower outer tube are connected to form an integrated structure through a front lower tube;

[0005] The front ends of the left side tube and the right side tube of the frame are fixedly mounted on the steering support tube, the steering support tube is fixedly connected to the front steering support tube through two upper suspension mounting tubes arranged in parallel, two drive axle support tubes arranged downward are arranged on the front steering support tube, a front upper tube is fixedly welded to the front end of the front steering support tube, a central front panel is welded between the front upper tube and the front lower tube, and a left front panel and a right front panel are welded between the central front panel and the front steering support plate;

[0006] The left and right ends of the steering support tube and the front steering support tube extend downward and are respectively fixedly welded to the left lower outer tube and the right lower outer tube of the chassis; the front ends of the left lower tube and the right lower tube of the chassis extend to the front lower tube, and the rear ends of the left lower tube and the right lower tube of the chassis extend upward and are respectively welded and fixed to the left side tube and the right side tube of the frame; the left side tube and the right side tube of the frame, the left lower tube and the right lower tube of the chassis are fixedly connected by a cross tube, an engine panel is fixedly installed on the cross tube, and a middle cross tube is welded and fixed at the center of the engine panel; between the left side tube of the frame, the left lower outer tube of the chassis and the cross tube A left side plate is provided, and a right side plate is provided between the right side tube of the frame, the lower right outer tube of the chassis and the cross tube; an engine cross tube is provided below the rear ends of the lower left outer tube of the chassis and the lower right outer tube of the chassis, the engine plate tube is fixedly welded on the engine cross tube, and an engine plate is fixedly installed between the engine plate tube and the engine cross tube; a battery tray and a transmission bearing frame chassis seat are fixedly installed between the engine cross tube and the bottom of the cross tube, a gear box bracket is fixedly installed between the middle cross tube and the upper end of the cross tube, an upper belt anchor is fixedly installed at the top of the cross tube, and a rocker arm rotating bracket is also fixedly installed between the middle cross tube and the cross tube;

[0007] A front middle plate is fixedly installed on the front bottom of the lower left tube, the lower right tube, the lower left outer tube and the lower right outer tube of the chassis; a rear middle plate is fixedly installed on the middle bottom of the lower left tube, the lower right tube, the lower left outer tube and the lower right outer tube of the chassis; the lower left tube, the lower right tube, the lower left outer tube and the lower right outer tube of the chassis are fixedly connected by a front seat tube; a switch bracket and a gearbox lever bracket are also arranged on the rear middle plate; a brake lever bracket and a plurality of power adjustment ports are arranged on the front middle plate; and power adjustment plates are arranged on the lower left tube and the lower right tube of the chassis at the power adjustment ports.

[0008] According to a further technical solution, a central tube is vertically arranged between the middle transverse tube and the bottom of the transverse tube.

[0009] According to a further technical solution, a plurality of seat positioning keys are evenly distributed on the front seat tube.

[0010] According to a further technical solution, a series shaft tube and a steering adjustment tube are arranged on the steering support tube, and a shaft bushing is fixedly installed at the end of the steering adjustment tube.

[0011] Beneficial effects of the present invention:

[0012] 1. In the present invention, the engine, battery, gear box, etc. are installed at the rear of the kart, which can balance the weight of the rider, make the chassis of the whole vehicle parallel to the driving ground, and improve the stability of the vehicle body.

[0013] 2. The vehicle frame of the present invention is a tube-sheet assembly as a whole, which is a tube skeleton structure, has a novel and unique appearance design, and the vehicle body has a streamlined layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Among them, 1. Left side tube of the frame, 2. Right side tube of the frame, 3. Left lower tube of the chassis, 4. Right lower tube of the chassis, 5. Left lower outer tube of the chassis, 6. Right lower outer tube of the chassis, 7. Rear tube, 8. Front lower tube, 9. Steering support tube, 10. Upper suspension mounting tube, 11. Front steering support tube, 12. Drive axle support tube, 13. Front upper tube, 14. Central front panel, 15. Left front panel, 16. Right front panel, 17. Cross tube, 18. Engine panel, 19. Middle cross tube, 20. Engine cross tube, 21. Engine panel tube, 2 2. Engine plate, 23. Battery tray, 24. Transmission bearing frame chassis seat, 25. Gearbox bracket, 26. Upper belt anchor, 27. Rocker arm rotation bracket, 28. Rear middle plate, 29. Front middle plate, 30. Front seat tube, 31. Switch bracket, 32. Transmission lever bracket, 33. Power adjustment port, 34. Power adjustment plate, 35. Center tube, 36. Seat positioning key, 37. Tandem shaft tube, 38. Steering adjustment tube, 39. Bushing, 40. Left side plate, 41. Right side plate, 42. Brake lever bracket. DETAILED DESCRIPTION

[0016] The present invention is further described and understood by the following non-limiting examples.

[0017] like Figure 1 As shown, the present invention is a tube-sheet combined kart frame structure, comprising a frame left tube 1, a frame right tube 2, a chassis left lower tube 3, a chassis right lower tube 4, a chassis left lower outer tube 5, and a chassis right lower outer tube 6. The rear ends of the frame left tube 1 and the frame right tube 2 are respectively tilted downward and connected to form an integral structure through a rear tube 7. The chassis left lower outer tube 5 and the chassis right lower outer tube 6 are connected to form an integral structure through a front lower tube 8.

[0018] The front ends of the left side tube 1 and the right side tube 2 of the frame are fixedly mounted on the steering support tube 9, and the steering support tube 9 is provided with a tandem shaft tube 37 and a steering adjustment tube 38, and the end of the steering adjustment tube 38 is fixedly mounted with a shaft bushing 39. The steering support tube 9 is fixedly connected to the front steering support tube 11 through two parallel upper suspension mounting tubes 10, and the front steering support tube 11 is provided with two downwardly arranged drive axle support tubes 12, and the front end of the front steering support tube 11 is fixedly welded with a front upper tube 13, and a central front panel 14 is welded between the front upper tube 13 and the front lower tube 8, and a left front panel 15 and a right front panel 16 are welded between the central front panel 14 and the front steering support plate;

[0019] The left and right ends of the steering support tube 9 and the front steering support tube 11 extend downward and are respectively fixedly welded to the chassis left lower outer tube 5 and the chassis right lower outer tube 6; the front ends of the chassis left lower tube 3 and the chassis right lower tube 4 extend to the front lower tube 8, and the rear ends of the chassis left lower tube 3 and the chassis right lower tube 4 extend upward and are respectively welded to the frame left side tube 1 and the frame right side tube 2. The frame left side tube 1, the frame right side tube 2, the chassis left lower tube 3, and the chassis right lower tube 4 are fixedly connected by a cross tube 17, and an engine panel 18 is fixedly installed on the cross tube 17, and a middle cross tube 19 is welded and fixed at the center of the engine panel 18; a center tube 35 is vertically arranged between the middle cross tube 19 and the bottom of the cross tube 17. The center tube 35 is used to enhance the stability between the structures.

[0020] A left side plate 40 is provided between the left side tube 1 of the frame, the lower left outer tube 5 of the chassis and the transverse tube 17, and a right side plate 41 is provided between the right side tube 2 of the frame, the lower right outer tube 6 of the chassis and the transverse tube 17;

[0021] An engine cross tube 20 is provided below the rear ends of the lower left outer tube 5 and the lower right outer tube 6 of the chassis, an engine plate tube 21 is fixedly welded on the engine cross tube 20, and an engine plate 22 is fixedly installed between the engine plate tube 21 and the engine cross tube 20; a battery tray 23 and a transmission bearing frame chassis seat 24 are fixedly installed between the engine cross tube 20 and the bottom of the cross tube 17, and a gear box bracket 25 is fixedly installed between the middle cross tube 19 and the upper end of the cross tube 17, so that the battery, gear box and engine of the kart are all placed at the rear of the kart, which can balance the weight of the rider, make the chassis of the whole vehicle parallel to the driving ground, and improve the stability of the vehicle body.

[0022] An upper belt anchor 26 is fixedly installed at the top of the cross tube 17, and a rocker arm rotating bracket 27 is also fixedly installed between the middle cross tube 19 and the cross tube 17;

[0023] A front middle plate 29 is fixedly installed at the front bottom of the chassis left lower tube 3, chassis right lower tube 4, chassis left lower outer tube 5, and chassis right lower outer tube 6, and a rear middle plate 28 is fixedly installed at the middle bottom of the chassis left lower tube 3, chassis right lower tube 4, chassis left lower outer tube 5, and chassis right lower outer tube 6. The chassis left lower tube 3, chassis right lower tube 4, chassis left lower outer tube 5, and chassis right lower outer tube 6 are fixedly connected through a front seat tube 30, and a plurality of seat positioning keys 36 are evenly distributed on the front seat tube 30. A switch bracket 31 and a gearbox lever bracket 32 ​​are also provided on the rear middle plate 28, a brake lever bracket 42 and a plurality of power adjustment ports 33 are provided on the front middle plate 29, and a power adjustment sheet 34 is provided at the power adjustment port 33 of the chassis left lower tube 3 and the chassis right lower tube 4.

[0024] In summary, the vehicle frame of the present invention is a tube-sheet assembly as a whole, and is a tube skeleton structure, and has the characteristics of high strength and low vibration.

Claims

1. A tube-sheet combined kart frame structure, comprising a frame left tube, a frame right tube, a chassis lower left tube, a chassis lower right tube, a chassis lower left outer tube, and a chassis lower right outer tube, characterized in that: The rear ends of the left side tube and the right side tube of the frame are respectively tilted downward and connected to form an integrated structure through the rear tube, and the lower left outer tube and the lower right outer tube of the chassis are connected to form an integrated structure through the front lower tube; The front ends of the left side tube and the right side tube of the frame are fixedly mounted on the steering support tube, the steering support tube is fixedly connected to the front steering support tube through two upper suspension mounting tubes arranged in parallel, two drive axle support tubes arranged downward are arranged on the front steering support tube, a front upper tube is fixedly welded to the front end of the front steering support tube, a central front panel is welded between the front upper tube and the front lower tube, and a left front panel and a right front panel are welded between the central front panel and the front steering support plate; The left and right ends of the steering support tube and the front steering support tube extend downward and are respectively fixedly welded to the left lower outer tube and the right lower outer tube of the chassis; the front ends of the left lower tube and the right lower tube of the chassis extend to the front lower tube, and the rear ends of the left lower tube and the right lower tube of the chassis extend upward and are respectively welded and fixed to the left side tube and the right side tube of the frame; the left side tube and the right side tube of the frame, the left lower tube and the right lower tube of the chassis are fixedly connected by a cross tube, an engine panel is fixedly mounted on the cross tube, and a middle cross tube is welded and fixed at the center of the engine panel; A left side plate is provided between the left side tube of the frame, the lower left outer tube of the chassis and the transverse tube, and a right side plate is provided between the right side tube of the frame, the lower right outer tube of the chassis and the transverse tube; An engine cross tube is provided below the rear ends of the lower left outer tube of the chassis and the lower right outer tube of the chassis, an engine plate tube is fixedly welded on the engine cross tube, and an engine plate is fixedly installed between the engine plate tube and the engine cross tube; a battery tray and a transmission bearing frame chassis seat are fixedly installed between the engine cross tube and the bottom of the cross tube, a gear box bracket is fixedly installed between the middle cross tube and the upper end of the cross tube, an upper belt anchor is fixedly installed at the top of the cross tube, and a rocker arm rotating bracket is also fixedly installed between the middle cross tube and the cross tube; A front middle plate is fixedly installed on the front bottom of the lower left tube, the lower right tube, the lower left outer tube and the lower right outer tube of the chassis; a rear middle plate is fixedly installed on the middle bottom of the lower left tube, the lower right tube, the lower left outer tube and the lower right outer tube of the chassis; the lower left tube, the lower right tube, the lower left outer tube and the lower right outer tube of the chassis are fixedly connected by a front seat tube; a switch bracket and a gearbox lever bracket are also arranged on the rear middle plate; a brake lever bracket and a plurality of power adjustment ports are arranged on the front middle plate; and power adjustment plates are arranged on the lower left tube and the lower right tube of the chassis at the power adjustment ports.

2. The tube-sheet combined kart frame structure according to claim 1, characterized in that: A central tube is vertically arranged between the middle horizontal tube and the bottom of the horizontal tube.

3. The tube-sheet combined kart frame structure according to claim 1, characterized in that: A plurality of seat positioning keys are evenly distributed on the front seat tube.

4. The tube-sheet combined kart frame structure according to claim 1, characterized in that: The steering support tube is provided with a series shaft tube and a steering adjustment tube, and a shaft bushing is fixedly installed at the end of the steering adjustment tube.

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