Carbon fiber vehicle underframe and scooter comprising same

Abstract

The carbon fiber vehicle underframe comprises a body, and the body comprises a front portion used for stepping, a middle portion located on the rear side of the front portion and a rear portion located on the rear side of the middle portion. A first mounting hole for mounting an article holding pocket is formed in the middle of the body and corresponds to the lower part of a chair seat mounting position; a second mounting hole for mounting a motor and a battery box is formed in the rear part of the body; comprising the carbon fiber vehicle underframe comprises a seat arranged on the upper portion of the front side of the middle, and the first mounting hole is formed in the position, close to the front, below the seat. The automobile chassis has the advantages that carbon fiber materials of the automobile chassis are reduced, the production cost is reduced, the weight of an automobile body can be reduced, it is guaranteed that the strength of the automobile body is reliable, the manufacturing difficulty is reduced, and meanwhile the space of the automobile body is utilized to the maximum degree.

Description

TECHNICAL FIELD

[0001] The present application relates to a carbon fiber vehicle chassis and a scooter comprising the same, and belongs to the technical field of scooters. BACKGROUND

[0002] Scooters are used in daily life in modern society, making it easier for people with limited mobility to travel. Some scooters now use carbon fiber materials to make the chassis to strengthen the frame and reduce the weight of the vehicle.

[0003] A carbon fiber electric folding scooter is disclosed in Chinese patent application No. CN214776351U, which includes an openable and closable chassis assembly, the top rear end of the chassis assembly is fixed with a battery box assembly, the top front end is provided with a footboard, the rear end of the footboard is overlapped on the top surface of the battery box assembly; the top of the battery box assembly is provided with a scissors lifting assembly symmetrically on both sides; the front end of the chassis assembly is rotatably connected with a front wheel assembly, the rear end is rotatably connected with a scissors lifting assembly; the top of the scissors lifting assembly is rotatably connected with a retractable seat assembly; the top center of the front wheel assembly is provided with a direction control assembly vertically.

[0004] In the actual production of scooters, due to the high cost of carbon fiber materials, the cost of the entire vehicle chassis made of carbon fiber will also be relatively high, and if multiple hollow holes are provided on the vehicle chassis, the support strength of the vehicle chassis will be affected, and the manufacturing difficulty will also increase. SUMMARY

[0005] The present application aims to provide a carbon fiber vehicle chassis and a scooter comprising the same, which solves the problems of high production cost of carbon fiber and high manufacturing difficulty in the prior art.

[0006] The technical problem of the present application is solved by the following technical scheme: a carbon fiber vehicle chassis, comprising a body, the body comprising a front part for stepping, a middle part behind the front part, and a rear part behind the middle part, the middle part of the body corresponding to the position below the seat installation position and being provided with a first installation hole for installing a storage pocket, and the rear part of the body being provided with a second installation hole for installing a motor and a battery box; the two sides of the first installation hole are provided with seat installation fixing parts, which extend upwardly and are formed integrally with the vehicle chassis; the first installation hole and the second installation hole are provided to concentrate the hollowing of the vehicle chassis, reduce the use of carbon fiber material of the vehicle chassis, reduce the production cost, reduce the weight of the vehicle body, ensure the strength of the vehicle chassis, and reduce the manufacturing difficulty; at the same time, the first installation hole is located below the seat installation position, which can utilize the space below the seat to form an additional storage space for placing articles, fully utilize the space, and avoid the user from stepping on nothing, ensuring the normal stepping of the user on the vehicle chassis; the seat installation fixing part is provided to increase the thickness of the edge of the first installation hole, thereby strengthening the strength of the two sides of the first installation hole.

[0007] Preferably, the left and right side width L of the first installation hole accounts for between three quarters and five sixths of the longest width of the body, and the front and rear side length M of the first installation hole accounts for between one fifth and one third of the longest length of the body; the above proportions are set to make the installation space of the first installation hole on the vehicle chassis optimal, while reducing the amount of carbon fiber as much as possible while ensuring the structural strength.

[0008] Preferably, the bottom surface of the front part of the body is provided with two left and right symmetrical reinforcing ribs, which respectively extend forward from the edge of the first installation hole and converge in the middle before being connected together, and the front side of the connection of the two reinforcing ribs is a faucet installation position; the reinforcing ribs are provided to strengthen the front side of the vehicle chassis, improve the support strength of the front side of the vehicle chassis, and increase the structural strength of the faucet installation position.

[0009] Preferably, an upward surrounding edge is formed around the front side of the upper surface of the front part of the body; the surrounding edge is provided to thicken the edge of the front part to strengthen the support strength of the edge of the front part, thereby strengthening the support strength of the whole front part.

[0010] The utility model provides a scooter including carbon fiber vehicle chassis, including the seat of the upper side of the front side of the middle part, first mounting hole is located at the position of the lower side of the seat, the rear position of the lower side of the seat is equipped with the cover shell of the second mounting hole and covers the motor and battery box, first mounting hole of the vehicle chassis is located at the lower side of the seat and can utilize the space of the scooter to the maximum, reduces the material of carbon fiber, guarantees the overall structural strength of the vehicle chassis reliable, reduces the manufacturing difficulty of the vehicle chassis, the cover shell is connected on the side wall of the second mounting hole, and the dustproof protection effect of motor, battery box and other components can be formed.

[0011] As preferred, the seat is connected with the body through two supports respectively, the cover shell is located between the two supports, and the lower end of the support is connected with the end of the seat mounting fixed part; the seat is connected with the seat mounting fixed part through the support, so as to fix the seat above the first mounting hole, utilize the space below the seat, and avoid space waste.

[0012] As preferred, the pocket bottom of the storage pocket is a planar structure, and the storage pocket is fixed inside the first mounting hole through a plurality of fixing pieces; the pocket bottom of the storage pocket is a planar structure, which can avoid the contact between the deformed downward protruding pocket bottom of the storage pocket and the ground due to the extrusion of the articles, and the abrasion of the pocket bottom of the storage pocket or the damage of the articles caused by the collision; the storage pocket is fixed inside the first mounting hole through the fixing pieces, so that the storage pocket is fixed more stably and reliably inside the first mounting hole, and is convenient to disassemble and assemble.

[0013] As preferred, the fixing piece includes a fixed sheet, a plurality of openings composed of eye rivets are arranged at the upper position of the side wall of the storage pocket, a protruding column penetrating the openings is arranged at the lower end of the fixed sheet, the upper end of the fixed sheet is connected with the body through a screw, and an annular protruding part is formed at the end of the protruding column extending to the inside of the storage pocket; the fixed sheet penetrates the openings through the protruding column to support and fix the storage pocket, so that the storage pocket is connected inside the first mounting hole and is convenient to disassemble and assemble, and the fixed sheet is fixed on the vehicle chassis through the screw, which strengthens the fixing strength of the fixing piece; the annular protruding part is arranged to limit the openings on the protruding column, so as to avoid the openings from coming out of the protruding column and causing the storage pocket to fall off.

[0014] As preferred, a limiting groove matched with the fixed sheet is arranged on the inner wall of the first mounting hole, and a matching surface in contact with the end surface of the fixed sheet is arranged on the matching groove; the limiting groove is arranged to limit the fixed sheet, so as to avoid the screw from loosening and falling off due to the deviation of the fixed sheet, and the limiting groove plays a positioning role in the assembly of the fixing piece; the matching surface is arranged to realize the surface contact between the fixed sheet and the matching groove, so as to strengthen the stability of the fixed sheet in the matching groove and avoid the loosening of the fixed sheet.

[0015] Preferably, the outer wall of the pocket and the inner wall of the first mounting hole are connected by a magic tape.

[0016] Therefore, the present application has the characteristics of reducing the carbon fiber material of the vehicle chassis, reducing the production cost, reducing the weight of the vehicle body, ensuring the strength of the vehicle body, reducing the manufacturing difficulty, and maximizing the use of the vehicle body space. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the scooter in the present application.

[0018] Figure 2 is a cooperation structure diagram of the vehicle chassis and the pocket in the present application.

[0019] Figure 3 is Figure 2 the enlarged view of the structure at A in

[0020] Figure 4 is a structural schematic diagram of the vehicle chassis in the present application.

[0021] Figure 5 is Figure 1 the top view of the vehicle chassis in DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be further specifically described below by examples and in combination with the drawings.

[0023] As Figure 1 shown, a carbon fiber vehicle chassis and a scooter comprising the chassis: As Figure 1 , 2 , 5, the carbon fiber vehicle chassis comprises a body 1, the body 1 comprises a front part 11 for stepping, a middle part 12 located at the rear side of the front part 11, and a rear part 13 located at the rear side of the middle part 12, the middle part of the body 1 corresponds to the position below the chair seat installation position and is provided with a first mounting hole 14 for installing a pocket 24, the rear part 13 of the body 1 is provided with a second mounting hole 15 for installing a motor and a battery box; the two sides of the first mounting hole 14 are provided with seat installation fixing parts 16, the seat installation fixing parts 16 extend obliquely upward and are formed integrally with the vehicle chassis, the left and right side width L of the first mounting hole 14 accounts for four-fifths of the left and right side longest width of the body 1, and the front and rear side length M of the first mounting hole 14 accounts for one-fourth of the front and rear side longest length of the body 1.

[0024] The first mounting hole is formed in the middle of the vehicle underframe, and the second mounting hole is formed on the rear side of the vehicle underframe, which can provide space for assembling components such as motors and motor boxes, and can reduce the use of carbon fiber materials and reduce the weight of the vehicle body. The edges of the first mounting hole and the second mounting hole are provided with a rounded structure in an arc shape. Since it is more difficult to manufacture straight edges when manufacturing carbon fiber components, the rounded structure can reduce the manufacturing difficulty. The seat mounting and fixing part is provided on both sides of the first mounting hole and is integrally formed with the vehicle underframe body.

[0025] As shown in Figure 4 The bottom surface of the front part 11 of the body 1 is provided with two left-right symmetrical reinforcing ribs 111, which are respectively extended forward from the edges of the first mounting hole 14 and connected together by moving towards the middle. The front side of the connection of the two reinforcing ribs 111 is a faucet mounting position 112. The upper surface of the front part 11 of the body 1 is formed with an upward surrounding edge 113 around the front side. The reinforcing ribs are formed on the bottom of the vehicle underframe, and the faucet mounting position is formed on the middle of the front side of the vehicle underframe. One end of each of the two reinforcing ribs is located on the two sides of the vehicle underframe, and the other end gradually extends towards the faucet mounting position until they intersect and connect with the faucet mounting position to form an integral structure. The entire vehicle underframe is integrally formed by carbon fiber material.

[0026] As shown in Figures 1-3 The scooter including the carbon fiber vehicle underframe includes a seat 21 provided above the front side of the middle part 12. The first mounting hole 14 is provided at a position close to the bottom of the seat 21. A cover 22 covering the motor and the battery box is provided at a position close to the bottom of the seat 21 and above the second mounting hole 15. The seat 21 is connected to the body 1 through two brackets 23 on both sides of the seat 21. The cover 22 is located between the two brackets 23. The lower end of the bracket 23 is connected to the end of the seat mounting and fixing part 16. The outer wall of the storage pocket 24 and the inner wall of the first mounting hole 14 are connected by magic tape 17.

[0027] The storage space on the scooter is usually arranged in front of the scooter faucet or behind the seat. If the storage space is arranged behind the seat, the driver cannot directly observe it, and it is difficult to find the falling items in time. If the storage space is arranged in front of the seat, due to the limitation of the length of the national standard scooter body, it is difficult to make the storage space in front of the seat large, and the capacity is small.

[0028] The seat is arranged on the bottom frame of the scooter, the first mounting hole is arranged on the bottom frame and below the seat of the scooter, the storage bag is fixed on the inner side of the first mounting hole and connected with each other through the magic tape, which is convenient for dismounting, the storage bag is made of pu leather, which is the most preferred material, or made of cotton, plastic or other materials, the bottom of the storage bag is arranged in a planar structure, which enhances the supporting capacity of the storage bag and avoids the bottom of the storage bag from being deformed downward to contact the ground due to the impact of the articles, which causes damage or article collision; the cover covers the second mounting hole to protect the motor, the battery box and other components, and the two supports are respectively arranged at the ends of the seat mounting and fixing portions, and the seat is arranged between the two supports and cooperates with the first mounting hole to form a space for placing articles.

[0029] As shown in Figures 2-3 the storage bag 24 is fixed on the inner side of the first mounting hole 14 through the plurality of fixing members 25, the fixing member 25 includes a fixing sheet 251, the upper position of the side wall of the storage bag 24 is provided with a plurality of openings 241 formed by the eye rivets, the lower end of the fixing sheet 251 is provided with a protruding column 252 penetrating through the opening 241, the upper end of the fixing sheet 251 is connected with the body 1 through the screw, the end of the protruding column 252 extends to the inner side of the storage bag 24 and is formed with an annular protruding portion 253, the inner wall of the first mounting hole 14 is provided with a limiting groove 141 matched with the fixing sheet 251, and the matching groove 141 is provided with a matching surface 142 in contact with the end surface of the fixing sheet 251.

[0030] The fixing member is made of nylon material, or made of plastic or metal, the upper end of the fixing sheet is bent to extend to the top surface of the bottom frame and is screwed on the bottom frame, the fixing sheet is clamped in the limiting groove, and the end surface of the fixing sheet is tightly matched with the matching surface, the lower end of the fixing sheet is provided with the protruding column extending to the side wall of the storage bag, the protruding column penetrates through the opening, the edge of the opening is formed by the eye rivet, the eye rivet is a product available in the market and is prior art, which will not be described here, the end of the protruding column is provided with the annular protruding portion, the protruding column and the annular protruding portion are integrally formed, the annular protruding portion can penetrate through the opening, the edge of the opening is clamped on the upper side of the protruding column and is limited by the annular protruding portion, which avoids the storage bag from being separated from the protruding column, and the storage bag can be dismounted by separating the opening from the protruding column and the annular protruding portion.

Claims

1. A carbon fibre vehicle chassis characterised in that: The utility model provides a kind of chair, including body (1), the body (1) includes front (11) for stepping on foot, middle (12) located the rear side of front (11) and rear (13) located the rear side of middle (12), the middle of the body (1) corresponds to the position below chair seat installation, and is equipped with first mounting hole (14) for installing storage pocket (24), the rear (13) of the body (1) is equipped with second mounting hole (15) for installing motor and battery box;The two sides of the first mounting hole (14) are equipped with seat installation fixed part (16), the seat installation fixed part (16) extends obliquely upwards and is formed integrally with the bottom frame of vehicle.

2. The carbon fiber chassis of claim 1, wherein: The left and right side width L of the first mounting hole (14) accounts for between three fourths and five sixth of the left and right side longest width of the body (1), and the front and rear side length M of the first mounting hole (14) accounts for between one fifth and one third of the front and rear side longest length of the body (1).

3. The carbon fiber vehicle chassis of claim 1, wherein: The bottom surface of the front (11) of the body (1) is equipped with two left and right symmetrical reinforcing ribs (111), the two reinforcing ribs (111) are connected together after extending forward and converging to the middle from the edge of the first mounting hole (14) respectively, and the front side of the connecting place of the two reinforcing ribs (111) is faucet installation position (112).

4. The carbon fiber vehicle chassis of claim 1, wherein: The upper surface of the front (11) of the body (1) is formed with upward surrounding edge (113) around the front side.

5. Scooter comprising a carbon fiber chassis according to claims 1-4, characterized in that: The utility model provides a kind of chair, including body (1), the body (1) includes front (11) for stepping on foot, middle (12) located the rear side of front (11) and rear (13) located the rear side of middle (12), the middle of the body (1) corresponds to the position below chair seat installation, and is equipped with first mounting hole (14) for installing storage pocket (24), the rear (13) of the body (1) is equipped with second mounting hole (15) for installing motor and battery box;The two sides of the first mounting hole (14) are equipped with seat installation fixed part (16), the seat installation fixed part (16) extends obliquely upwards and is formed integrally with the bottom frame of vehicle.

6. The scooter of claim 5, wherein: The lower end of the bracket (23) is connected with the end of seat installation fixed part (16).

7. The scooter of claim 5, wherein: The pocket bottom of the storage pocket (24) is planar structure, and the storage pocket (24) is fixed inside the first mounting hole (14) by a plurality of fixing pieces (25).

8. The scooter of claim 7, wherein: The fixing piece (251) includes fixed sheet (251), the upper position of the side wall of the storage pocket (24) is equipped with a plurality of openings (241) formed by eyelet rivets, the lower end of the fixed sheet (251) is equipped with convex column (252) passing through the opening (241), the upper end of the fixed sheet (251) is connected with the body (1) by screw, and the end of the convex column (252) extends to the inside of the storage pocket (24) and is formed with annular convex part (253).

9. The scooter of claim 8, wherein: The inner wall of the first mounting hole (14) is equipped with limiting groove (141) matched with the fixed sheet (251), and the matching groove (141) is equipped with matching surface (142) in contact with the end surface of the fixed sheet (251).

10. The scooter of claim 5, wherein: The outer wall of the storage pocket (24) and the inner wall of the first mounting hole (14) are connected by magic tape (17).

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