CN217623929U

CN217623929U - Extrusion casting's electric bicycle frame

Info

Publication number: CN217623929U
Application number: CN202221421508.5U
Authority: CN
Inventors: 周大伟; 贾启彪; 靖丽鹏; 冯在磊; 王利全; 叶帅
Original assignee: Tianjin Daliang Craftsman Industrial Design Co ltd
Current assignee: Tianjin Daliang Craftsman Industrial Design Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-10-21
Anticipated expiration: 2032-06-07

Abstract

The utility model relates to a frame equipment technical field, specific extrusion casting's electric bicycle frame that says so, including frame upper portion and frame lower part, frame upper portion fixed mounting is at the top of frame lower part, the inside fixed mounting on frame upper portion has the top tube, top tube one end fixedly connected with low tube, the other end fixedly connected with well pipe of top tube, the top center fixedly connected with head pipe of low tube, the even first nut post of fixedly connected with in bottom surface both sides of top tube, the inside fixed mounting of frame lower part has the frame right part, the side fixedly connected with frame left part of the frame right part. The utility model discloses can only three module composition through the frame, make it the part few, the process is few, do not have the welding, the personnel selection is few, the work efficiency is high, productivity is high, the product uniformity is good, the quality is promoted by a wide margin, reduces after-sale work load, has reduced the unnecessary spending, and reduce cost expenditure helps reducing carbon emission simultaneously.

Description

Extrusion casting's electric bicycle frame

Technical Field

The utility model relates to a frame equipment technical field specifically is an extrusion casting's electric bicycle frame.

Background

According to chinese patent No. CN201921722845.6, the utility model discloses an electric power-assisted vehicle frame, its characterized in that mainly includes: the folding bicycle comprises a middle shaft, a front frame, a rear seat plate and a folding piece; the bottom of the middle shaft is fixed with a rear frame, and the front frame adopts a double-tube structure and is connected with the middle shaft through a folding piece; the rear seat board is welded on the middle shaft and is connected with the rear seat frame through the supporting pipe. The utility model adopts the double-tube structure design of the front frame, which can effectively reduce the buffer force in the use of the frame and increase the impact strength; through using the folded piece to connect, it is more convenient to make the use, makes the utility model has the characteristics of framework is simple, light in weight, can effectively reduce the cushion effect, reinforcing impact strength.

According to chinese patent No. CN201720625909.5, the utility model discloses an electric bicycle frame, including preceding triangle portion and back triangle portion, preceding triangle portion includes the tubulose part of riser, top tube, low tube, head pipe in order, back triangle portion includes two wholly connected to the back of riser and goes up the fork in order, and two wholly connected to the back lower fork of low tube, the low tube is provided with the battery, head pipe front end is equipped with the headlight, riser rear end face is equipped with the rear of a vehicle lamp, be equipped with control panel in the top tube, the riser upper end is equipped with sits a tub mounting groove, be equipped with the fixed pipe of back fender between two back upper forks. The utility model discloses the product is through the improvement that will have the bicycle frame now and be adapted to electric bicycle, carries on battery, front and back car light and control panel component on the frame body, provides a perfect with electric bicycle adaptability splendid electric bicycle frame of rational structure function, but this patent has the process many, the part is many, and the uniformity is relatively poor after the processing, and the quality is relatively poor, and the repair rate is higher, needs to improve.

Electric bicycle frame is an important part on the electric bicycle, and electric bicycle frame mainly plays the effect of bearing moreover, and the good or bad direct relation of its quality is to user's personal safety moreover, and the major defect of current electric bicycle frame has: the tubular product adopts technologies such as die mould, return bend and punching press to process, and the process is many, the part is many, and the uniformity is relatively poor after the processing, and the quality is relatively poor, and the rate of reprocessing is higher, and the work efficiency is low, and the frame adopts welding process moreover, and the product can produce the deformation in manufacturing process, and the product uniformity is relatively poor, influences the assembly of whole car, and the rate of reprocessing is high, and after sale cost is higher, adopts welding process to make the recruitment cost higher, and the work efficiency is comparatively low, and the aluminum alloy tubular product that its used simultaneously, its course of working is: electrolytic aluminum-smelting of Aoo aluminum ingots-smelting of aluminum alloy bars-extrusion of tubes-frame tube processing, where two smelting takes place, is not conducive to carbon emission reduction, so an extrusion cast electric scooter frame is needed to solve the problems set forth above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an extrusion casting's electric bicycle frame to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: an extrusion-cast electric moped frame comprises an upper frame part and a lower frame part, wherein the upper frame part is fixedly arranged at the top of the lower frame part, an upper pipe is fixedly arranged inside the upper frame part, one end of the upper pipe is fixedly connected with a lower pipe, the other end of the upper pipe is fixedly connected with a middle pipe, the top end center of the lower pipe is fixedly connected with a head pipe, first nut columns are uniformly and fixedly connected with two sides of the bottom surface of the upper pipe, the right frame part is fixedly arranged inside the lower frame part, the left frame part is fixedly connected with the side surface of the right frame part, a left vertical fork is fixedly arranged at the top end inside the left frame part, a left bottom fork is fixedly connected with one end inside the left frame part and positioned at the bottom of the left vertical fork, a left rear hook is fixedly connected with one end inside the left frame part and positioned at the left vertical fork, first screw hole has evenly been seted up in the upper surface one side edge of frame left part, the even fixedly connected with second nut post in the side peripheral edge of frame left part, the side bottom welding of frame left part has a left side connector, the inside top fixed mounting of frame right part has the right side to erect the fork, the inside of frame right part just is located the bottom one end fixedly connected with right side chain stay of left side chain stay, the inside of frame right part just is located the one end fixedly connected with right fork hook of left side chain stay, the second screw hole has evenly been seted up in the upper surface one side edge of frame left part, the side peripheral edge of frame right part has evenly seted up the third screw hole, the side bottom welding of frame right part has the right side connector.

Specifically, the upper part and the lower part of the frame are made of aluminum alloy.

Specifically, the number of the first nut columns is six, the number of the first screw holes is three, the number of the second nut columns is seven, the number of the second screw holes is three, and the number of the third screw holes is seven.

Specifically, the upper tube is in alignment clamping connection with the first screw hole and the second screw hole on one side of the top of the left part and the right part of the frame through the first nut column on the bottom surface.

Specifically, the left part and the right part of the frame are in aligned clamping connection through a second nut column and a third screw hole.

Specifically, the frame left part is through the alignment joint in the left side of side bottom and the right side of frame right part side.

Specifically, the inside of the first screw hole, the second nut post and the second screw hole are all in threaded connection with fastening bolts.

Specifically, a battery box is arranged in the lower portion of the frame and at the bottom between the left portion and the right portion of the frame.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses an extrusion casting integrated into one piece technology for each module is disposable integrative extrusion casting shaping, and no welding, the material that uses are the aluminum alloy, make the further lightweight of product and intensity satisfy the requirement of national relevant standard, and electric bicycle frame, tricycle frame, bicycle frame all can adopt extrusion casting integrated into one piece technology one shot forming, and the material includes steel, aluminum alloy, almag, magnesium alloy.

The utility model discloses an use electric bicycle frame, tricycle frame with extrusion casting integrated into one piece technology and make, adopt extrusion casting integrated into one piece technology, make the frame become the modularization by a plurality of part welding and make, no longer use welding process, only use bolt-up alright accomplish the manufacturing of whole platform frame. Except for the extrusion casting integral forming process, the technical scheme is realized within the protection range by utilizing casting and pressure casting processes; the material used in the technical scheme is aluminum alloy, and the technical scheme is realized within the protection range by utilizing steel, aluminum alloy, aluminum-magnesium alloy and magnesium alloy.

The utility model discloses a frame only three module composition, make it the part few, the process is few, no welding, the personnel selection is few, the work efficiency is high, productivity is high, the product uniformity is good, and the quality is promoted by a wide margin, reduces after-sale work load, has reduced the unnecessary spending, and reduce cost expenditure helps reducing carbon emission simultaneously.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic structural view of the upper portion of the frame of the present invention;

FIG. 3 is a schematic structural view of the lower portion of the frame of the present invention;

FIG. 4 is a schematic structural view of the left portion of the frame of the present invention;

fig. 5 is a schematic structural view of the right portion of the frame of the present invention.

In the figure: 1-upper part of frame, 2-left part of frame, 3-right part of frame, 4-head pipe, 5-lower pipe, 6-upper pipe, 7-middle pipe, 8-first nut column, 9-first screw hole, 10-left middle joint, 11-left vertical fork, 12-left rear hook, 13-second nut column, 14-left bottom fork, 15-right vertical fork, 16-right fork hook, 17-right bottom fork, 18-right middle joint, 19-second screw hole, 20-third screw hole, 21-battery box and 22-lower part of frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: an extrusion-cast electric moped frame comprises a frame upper part 1 and a frame lower part 22, wherein the frame upper part 1 is fixedly arranged at the top of the frame lower part 22, an upper pipe 6 is fixedly arranged inside the frame upper part 1, one end of the upper pipe 6 is fixedly connected with a lower pipe 5, the other end of the upper pipe 6 is fixedly connected with a middle pipe 7, the top end center of the lower pipe 5 is fixedly connected with a head pipe 4, two sides of the bottom surface of the upper pipe 6 are uniformly and fixedly connected with first nut columns 8, a frame right part 3 is fixedly arranged inside the frame lower part 22, the side surface of the frame right part 3 is fixedly connected with a frame left part 2, the top end inside the frame left part 2 is fixedly connected with a left vertical fork 11, one end inside the frame left part 2 and positioned at the bottom of the left vertical fork 11 is fixedly connected with a left flat fork 14, one end inside the frame left part 2 and positioned at one end of the left vertical fork 11 is fixedly connected with a left rear hook 12, first screw hole 9 has evenly been seted up at the upper surface one side edge of frame left part 2, the even fixedly connected with second nut post 13 in the peripheral edge in side of frame left part 2, the welding of the side bottom of frame left part 2 has left well joint 10, the inside top fixed mounting of frame right part 3 has right side to erect fork 15, the inside of frame right part 3 just is located the bottom one end fixedly connected with right chain stay 17 of left side vertical fork 11, the inside of frame right part 3 just is located the one end fixedly connected with right fork hook 16 of left side vertical fork 11, second screw hole 19 has evenly been seted up at the upper surface one side edge of frame left part 2, third screw hole 20 has evenly been seted up at the peripheral edge in side of frame right part 3, the welding of the side bottom of frame right part 3 has right well joint 18.

The upper frame portion 1 and the lower frame portion 22 are made of aluminum alloy, the number of the first nut columns 8 is six, the number of the first screw holes 9 is three, the number of the second nut columns 13 is seven, the number of the second screw holes 19 is three, and the number of the third screw holes 20 is seven, so that the connection stability among the upper frame portion 1, the left frame portion 2 and the right frame portion 3 can be enhanced.

The upper pipe 6 is aligned and clamped with the first screw hole 9 and the second screw hole 19 on one side of the tops of the left frame part 2 and the right frame part 3 through the first nut column 8 on the bottom surface, and is aligned and clamped between the left frame part 2 and the right frame part 3 through the second nut column 13 and the third screw hole 20, so that the accuracy of connection alignment among the upper frame part 1, the left frame part 2 and the right frame part 3 is guaranteed.

The left part 2 of the frame is aligned and clamped with the right middle joint 18 of the side surface of the right part 3 of the frame through the left middle joint 10 at the bottom of the side surface, and the left middle joint 10 and the right middle joint 18 can be ensured to be aligned and not deflected.

The first screw hole 9, the second nut column 13 and the second screw hole 19 are all connected with fastening bolts in a threaded manner, so that the upper part 1 of the frame, the left part 2 of the frame and the right part 3 of the frame can be fastened and connected conveniently.

A battery compartment 21 is mounted inside the frame lower part 22 and at the bottom between the frame left part 2 and the frame right part 3, thereby facilitating the mounting of batteries inside the frame left part 2 and the frame right part 3.

The working principle is as follows: the frame of the electric power-assisted vehicle mainly comprises three modules, wherein the first module is the upper part 1 of the frame, the upper part 1 of the frame is composed of a head pipe 4, a lower pipe 5, an upper pipe 6, a middle pipe 7 and a first nut column 8, the head pipe 4, the lower pipe 5, the upper pipe 6, the middle pipe 7 and the first nut column 8 in the upper part 1 of the frame are formed in one step by adopting an extrusion casting process, and the welding process is completely abandoned, the second module is the lower part 22 of the frame, the lower part 22 of the frame mainly comprises a left part 2 of the frame and a right part 3 of the frame, wherein a first screw hole 9 in the left part 2 of the frame, a left middle joint 10, a left vertical fork 11, a left rear hook 12, a second nut column 13 and a left flat fork 14 are formed in one step by adopting the same extrusion casting process, the welding process is also completely abandoned, a right vertical fork 15, a right fork hook 16, a right flat fork 17, a right middle joint 18, a second screw hole 19 and a third screw hole 20 in the right part 3 of the frame, similarly, the extrusion casting process is adopted for one-step forming, the welding process is completely abandoned, after the extrusion casting of the upper frame part 1, the left frame part 2 and the right frame part 3 is completed, the assembly among the upper frame part 1, the left frame part 2 and the right frame part 3 is needed, the left frame part 2 and the right frame part 3 are firstly assembled, the side surfaces of the left frame part 2 and the right frame part 3 are contacted with each other, the third screw holes 20 and the second nut columns 13 on the side surfaces of the left frame part 2 and the right frame part 3 are aligned one by one, the battery box 21 is arranged between the side surfaces of the left frame part 2 and the right frame part 3, the battery box 21 is positioned on the upper edges of the left middle joint 10 and the right middle joint 18 and below the first screw holes 9 and the second screw holes 19, and then a fastening bolt penetrates through the third screw holes 20 to be in threaded connection with one end of the second nut columns 13, the left frame part 2 and the right frame part 3 are fastened and connected, the battery box 21 is limited between the left frame part 2 and the right frame part 3, the lower frame part 22 is assembled, the upper frame part 1 is placed at the top center of the lower frame part 22, the first nut column 8 on the bottom surface of the upper pipe 6 is aligned with the second screw hole 19 on one side of the top of the left frame part 2 and the right frame part 3, and then a fastening bolt penetrates upwards from the bottom of the second screw hole 19 to be fastened and connected with the bottom end of the first nut column 8 in a threaded manner, so that the upper frame part 1 is fixedly arranged at the top of the lower frame part 22, and the upper frame part 1 and the lower frame part 22 are assembled and connected to form a complete electric power-assisted bicycle frame; the process comprises casting and pressure casting, and the frame is formed by only three modules by adopting an extrusion casting integrated forming process, so that the frame has the advantages of fewer parts, fewer working procedures, no welding, fewer workers, high work efficiency, high labor productivity, good product consistency, greatly improved quality, reduced after-sale workload, reduced unnecessary expenditure, reduced cost expenditure and contribution to reducing carbon emission.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an extrusion casting's electric bicycle frame, includes frame upper portion (1) and frame lower part (22), its characterized in that: the frame comprises a frame upper portion (1), an upper pipe (6), a lower pipe (5), a middle pipe (7) and a middle pipe (7), wherein the upper pipe (6) is fixedly arranged inside the frame upper portion (1), a first nut column (8) is fixedly connected to one end of the upper pipe (6), the middle pipe (7) is fixedly connected to the other end of the upper pipe (6), a head pipe (4) is fixedly connected to the center of the top end of the lower pipe (5), first nut columns (8) are fixedly connected to two sides of the bottom surface of the upper pipe (6), a frame right portion (3) is fixedly mounted inside the frame lower portion (22), a frame left portion (2) is fixedly connected to the side of the frame right portion (3), a left vertical fork (11) is fixedly mounted at the top end inside the frame left portion (2), a left rear hook (12) is fixedly connected to one end of the bottom of the left vertical fork (11) inside the frame left portion (2), a left rear hook (12) is fixedly connected to one end of the frame left vertical fork (11), a first screw hole (9) is uniformly formed in one side edge of the upper surface of the left side of the frame left portion (2), a second nut column (10) is welded at the top end of the left side edge (10), and a left side joint (10) is welded to the left side edge of the frame right side edge (2), the inside of frame right part (3) just is located bottom one end fixedly connected with right chain stay (17) of left side vertical fork (11), the inside of frame right part (3) just is located one end fixedly connected with right fork hook (16) of left side vertical fork (11), second screw hole (19) have evenly been seted up to the upper surface one side edge of frame left part (2), third screw hole (20) have evenly been seted up to the side peripheral edge of frame right part (3), the side bottom welding of frame right part (3) has right middle joint (18).

2. The extrusion-cast electric scooter frame as claimed in claim 1, wherein: the upper frame part (1) and the lower frame part (22) are made of aluminum alloy.

3. The squeeze cast electric scooter frame as claimed in claim 2, wherein: the number of the first nut columns (8) is six, the number of the first screw holes (9) is three, the number of the second nut columns (13) is seven, the number of the second screw holes (19) is three, and the number of the third screw holes (20) is seven.

4. The squeeze cast electric scooter frame as claimed in claim 3, wherein: the upper pipe (6) is aligned and clamped with a first screw hole (9) and a second screw hole (19) on one side of the tops of the left part (2) and the right part (3) of the frame through a first nut column (8) on the bottom surface.

5. The squeeze cast electric scooter frame as claimed in claim 4, wherein: the frame left part (2) and the frame right part (3) are aligned and clamped through a second nut column (13) and a third screw hole (20).

6. The squeeze cast electric scooter frame as claimed in claim 5, wherein: the frame left part (2) is aligned and clamped with a right middle joint (18) on the side surface of the frame right part (3) through a left middle joint (10) on the bottom of the side surface.

7. The squeeze cast electric scooter frame as claimed in claim 6, wherein: and fastening bolts are connected to the inner parts of the first screw hole (9), the second nut column (13) and the second screw hole (19) in a threaded manner.

8. The squeeze cast electric scooter frame as claimed in claim 7, wherein: and a battery box (21) is arranged in the lower part (22) of the frame and at the bottom between the left part (2) and the right part (3) of the frame.