CN210618359U - Rear bottom fork device for electric vehicle - Google Patents
Rear bottom fork device for electric vehicle Download PDFInfo
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- CN210618359U CN210618359U CN201921751970.XU CN201921751970U CN210618359U CN 210618359 U CN210618359 U CN 210618359U CN 201921751970 U CN201921751970 U CN 201921751970U CN 210618359 U CN210618359 U CN 210618359U
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- bottom fork
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- supporting arm
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Abstract
The utility model discloses a rear bottom fork device for an electric vehicle, which comprises a left bottom fork supporting arm, a right bottom fork supporting arm and a bottom fork rotating shaft supporting sleeve; the left bottom fork supporting arm and the right bottom fork supporting arm are integrally formed by stamping, the cross sections of the left bottom fork supporting arm and the right bottom fork supporting arm are C-shaped structures, and the left bottom fork supporting arm and the right bottom fork supporting arm respectively comprise a bottom fork supporting section and a motor connecting section; the motor connecting section is of a flat plate type structure; the bottom fork supporting section is in arc smooth transition connection with the motor connecting section; functional holes for installing electric vehicle accessories are further formed in the left bottom fork supporting arm and the right bottom fork supporting arm; the left bottom fork supporting arm and the right bottom fork supporting arm are respectively welded with the bottom fork rotating shaft supporting sleeve and are reinforced through the reinforcing connecting plate. The utility model provides a current welded structure in bulk exist the deformation by heating, and the solder joint is many, production efficiency is low, the defect that intensity is low. Additionally, the utility model discloses an integrative stamping structure has advantages such as bearing capacity is strong, stable in quality, appearance are pleasing to the eye.
Description
Technical Field
The utility model belongs to the technical field of electric motor car accessory, especially, relate to a rear fork device for electric motor car.
Background
The rear bottom fork is one of important parts of a motorcycle or an electric vehicle and basically comprises a left bottom fork supporting arm, a right bottom fork supporting arm and a bottom fork rotating shaft supporting sleeve which are symmetrically arranged. The left bottom fork supporting arm and the right bottom fork supporting arm are respectively welded with the bottom fork rotating shaft supporting sleeve to play a role in supporting and connecting. The left bottom fork supporting arm and the right bottom fork supporting arm of the rear bottom fork of most electric vehicles in the market at present are formed by welding an iron pipe and a functional connecting plate, and are easy to deform due to welding heating, so that the use requirement of high performance of the electric vehicle cannot be met.
Therefore, the utility model provides a bearing capacity is strong, reduces the number of parts in bulk, reduces the solder joint, improves production efficiency's rear fork device for electric motor car.
Disclosure of Invention
Problem to prior art existence, the utility model provides an electric motor car is with back chain stay device that bearing capacity is strong, reduces the number of part in bulk, reduces the solder joint, improves production efficiency.
The utility model is realized in such a way that the rear bottom fork device for the electric vehicle comprises a left bottom fork supporting arm, a right bottom fork supporting arm and a bottom fork rotating shaft supporting sleeve; the front ends of the left bottom fork supporting arm and the right bottom fork supporting arm are symmetrically welded on a bottom fork rotating shaft supporting sleeve; the left bottom fork supporting arm comprises a left bottom fork supporting section and a motor left connecting section which are integrally punched; the cross section of the left bottom fork supporting section is of a C-shaped structure, and the left connecting section of the motor is of a flat plate type structure; the left bottom fork supporting section is in arc smooth transition connection with the left motor connecting section; a lower flange plate of the left bottom fork supporting section close to the left connecting section side of the motor is provided with an expansion brake fixing plate bent downwards; an expansion brake fixing long hole is formed in the expansion brake fixing plate; the motor left connecting section comprises a motor left mounting plate and a left shock absorber mounting seat which are integrally formed by stamping, a left shock absorber mounting hole is formed in the left shock absorber mounting seat, and a motor shaft left placing groove which is open to the tail end is formed in the middle of the motor left mounting plate; a left rear pedal mounting long hole is symmetrically formed in the motor left mounting plate at the blind end of the motor shaft left placing groove; a left motor wire bracket fixing hole is formed in the blind end of the left motor placing groove; a left anti-rotation hole of the vehicle ladder support is formed in the motor left mounting plate below the motor shaft left placing groove; the two sides of the left anti-rotation hole of the vehicle ladder support are symmetrically provided with left mounting holes of the vehicle ladder support; a left connecting hole of the clay tile bracket is arranged above the left placing groove of the motor shaft;
the right bottom fork supporting arm comprises a right bottom fork supporting section and a motor right connecting section which are integrally punched; the cross section of the right bottom fork supporting section is of a C-shaped structure, and the right connecting section of the motor is of a flat plate type structure; the right bottom fork supporting section is in arc smooth transition connection with the right motor connecting section; the motor right connecting section comprises a motor right mounting plate and a right shock absorber mounting seat which are integrally formed by stamping, a right shock absorber mounting hole is formed in the right shock absorber mounting seat, and a motor shaft right placing groove which is open to the tail end is formed in the middle of the motor right mounting plate; right rear pedal mounting long holes are symmetrically formed in the motor right mounting plate at the blind end of the motor shaft right placing groove; a blind end of the right motor placing groove is provided with a right motor wire bracket fixing hole; a right anti-rotation hole of the vehicle ladder support is formed in the right motor mounting plate below the right motor shaft placing groove; the two sides of the right anti-rotation hole of the vehicle ladder support are symmetrically provided with right mounting holes of the vehicle ladder support; a mud tile support right connecting hole is formed above the motor shaft right placing groove;
the left bottom fork supporting arm, the right bottom fork supporting arm and the bottom fork rotating shaft supporting sleeve are welded together through the reinforcing connecting plates; and a mud tile front support plate is also integrally bent upwards on the reinforcing connecting plate, and a mud tile mounting long hole is formed in the mud tile front support plate.
In the above technical solution, preferably, an arc-shaped groove is punched on the outer side surface of the web plate at the corner position of the left chain stay supporting section; forming reinforcing ribs on the inner side surface of the web plate; an arc-shaped groove is punched on the outer side surface of the web plate at the corner position of the right bottom fork supporting section; and reinforcing ribs are formed on the inner side surface of the web plate.
The connecting section of the left bottom fork supporting section and the bottom fork rotating shaft supporting sleeve is provided with a left arc-shaped anastomosis groove which is anastomotic with the outer diameter of the bottom fork rotating shaft supporting sleeve; and the connecting section of the right bottom fork supporting section and the bottom fork rotating shaft supporting sleeve is provided with a right arc-shaped anastomosis groove which is anastomotic with the outer diameter of the bottom fork rotating shaft supporting sleeve.
The left anti-rotation hole of the vehicle ladder support and the right anti-rotation hole of the vehicle ladder support are square holes.
The utility model has the advantages and technological effect: because the utility model discloses the left bottom fork support arm of back bottom fork device, the right bottom fork support arm adopts whole stamping structure, at left bottom fork support arm, the right bottom fork support arm is bent or is punched a hole by the direct punching press of a positive plate and form the installation station of other spare parts of electric motor car rear wheel, spare parts such as shock absorber, the floodgate that rises, the car ladder, mud tile, and then it has the deformation by heating to solve current welding structure in bulk, the solder joint is many, low in production efficiency, the defect of low strength, operational environment has also been improved simultaneously, the welding machine occupancy has been reduced, the energy consumption has been reduced, the advantage that has energy-concerving and environment-protective. Additionally, the utility model discloses an integrative stamping structure has advantages such as bearing capacity is strong, stable in quality, appearance are pleasing to the eye.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
fig. 4 is a schematic perspective view of the present invention;
FIGS. 5-7 are perspective views of the left bottom fork support arm;
fig. 8-10 are perspective views of the right bottom fork support arm.
Middle, 10, left chain stay support arm; 110. a left bottom fork support section; 111. a lower flange plate; 112. an expansion brake fixing plate; 113. the expansion brake fixing long hole; 114. the expansion brake line limit long hole; 115. a left arc-shaped anastomosis groove; 116. an arc-shaped groove; 117. reinforcing ribs; 120. a motor left connecting section; 121. a motor left mounting plate; 122. a left shock absorber mounting base; 1220. a left shock absorber mounting hole; 123. a left placing groove of the motor shaft; 124. a left rear pedal mounting slot; 125. a left motor wire bracket fixing hole; 126. a left anti-rotation hole of the vehicle ladder support; 127. a left mounting hole of the vehicle ladder support; 128. a left connecting hole of the clay tile bracket; 20. a right bottom fork support arm; 210. a right bottom fork support section; 211. an arc-shaped groove; 212. reinforcing ribs; 213. a right arc-shaped anastomosis groove; 214. the power line fixing clip is provided with a mounting hole; 220. a motor right connecting section; 221. a motor right mounting plate; 222. a right shock absorber mounting base; 2220. a right shock absorber mounting hole; 223. a right placing groove of the motor shaft; 224. a long hole is arranged on the right rear pedal; 225. a right motor wire support fixing hole; 226. a right anti-rotation hole of the vehicle ladder support; 227. a right mounting hole of the vehicle ladder support; 228. a right connecting hole of the clay tile bracket; 30. a bottom fork rotating shaft supporting sleeve; 40. reinforcing the connecting plate; 41. a front supporting plate of the clay tile; 42. the clay tile is provided with a long hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to fig. 1 to 10; a rear bottom fork device for an electric vehicle comprises a left bottom fork supporting arm 10, a right bottom fork supporting arm 20 and a bottom fork rotating shaft supporting sleeve 30; the front ends of the left bottom fork supporting arm and the right bottom fork supporting arm are symmetrically welded on a bottom fork rotating shaft supporting sleeve; the left bottom fork supporting arm comprises a left bottom fork supporting section 110 and a motor left connecting section 120 which are integrally punched; the cross section of the left bottom fork supporting section is of a C-shaped structure, the structure is simple, the processing and forming are easy, an inner groove of the C-shaped structure can be used as a wiring groove, and the defects that wiring harnesses are messy and easy to damage due to the fact that the wiring harnesses are externally hung are greatly reduced; the left bottom fork supporting section comprises an upper flange plate, a lower flange plate and a web plate for connecting the upper flange plate and the lower flange plate, and the left motor connecting section is of a flat plate type structure; the left bottom fork supporting section and the motor left connecting section are in arc smooth transition connection, so that the deformation of internal stress is reduced, and the aesthetic feeling is improved; a lower flange plate 111 of the left bottom fork supporting section 110 close to the left connecting section side of the motor is provided with an expansion brake fixing plate 112 bent downwards; an expansion brake fixing long hole 113 is formed in the expansion brake fixing plate; according to actual needs, an expansion brake line limiting long hole 114 or a cable fixing clip mounting hole can be reserved on the lower flange plate of the left bottom fork supporting section close to the expansion brake fixing plate side; the motor left connecting section 120 comprises a motor left mounting plate 121 and a left shock absorber mounting seat 122 which are integrally formed by stamping, a left shock absorber mounting hole 1220 is formed in the left shock absorber mounting seat, and a motor shaft left placing groove 123 which is open to the tail end is formed in the middle of the motor left mounting plate; a left rear pedal mounting long hole 124 is symmetrically arranged on the left motor mounting plate at the blind end of the left motor shaft placing groove; a left motor wire bracket fixing hole 125 is formed at the blind end of the left motor placing groove; a left anti-rotation hole 126 of the vehicle ladder support is formed in the left motor mounting plate below the left motor shaft placing groove; the two sides of the left anti-rotation hole of the vehicle ladder support are symmetrically provided with left mounting holes 127 of the vehicle ladder support; a left connecting hole 128 of the clay tile bracket is arranged above the left placing groove of the motor shaft; the connecting section of the left bottom fork supporting section and the bottom fork rotating shaft supporting sleeve is provided with a left arc-shaped anastomosis groove 115 which is anastomosed with the outer diameter of the bottom fork rotating shaft supporting sleeve; the arc-shaped inosculating groove structure is adopted to increase the contact area of the left bottom fork supporting arm and the bottom fork rotating shaft supporting sleeve, and the welding strength is improved.
The right bottom fork supporting arm 20 comprises a right bottom fork supporting section 210 and a motor right connecting section 220 which are integrally formed by punching; the cross section of the right bottom fork supporting section is of a C-shaped structure, the right bottom fork supporting section adopts the C-shaped structure and has the same technical effect as the left bottom fork supporting section, the description is omitted, the right bottom fork supporting section comprises an upper flange plate, a lower flange plate and a web plate for connecting the upper flange plate and the lower flange plate, and the right motor connecting section is of a flat plate type structure; the right bottom fork supporting section is in arc smooth transition connection with the right motor connecting section; a power line fixing clip mounting hole 214 can be preset on a lower flange plate of the right bottom fork supporting section close to the right motor section side of the motor according to actual needs; the motor right connecting section 220 comprises a motor right mounting plate 221 and a right shock absorber mounting seat 222 which are integrally formed by punching, a right shock absorber mounting hole 2220 is formed in the right shock absorber mounting seat, and a motor shaft right placing groove 223 which is open to the tail end is formed in the middle of the motor right mounting plate; right rear pedal mounting long holes 224 are symmetrically formed in the motor right mounting plate at the blind end of the motor shaft right placing groove; a right motor wire bracket fixing hole 225 is formed in the blind end of the right motor placing groove; a right anti-rotation hole 226 of a vehicle ladder support is arranged on the right mounting plate of the motor below the right placing groove of the motor shaft; the two sides of the right anti-rotation hole of the vehicle ladder support are symmetrically provided with right mounting holes 227 of the vehicle ladder support; a mud tile bracket right connecting hole 228 is formed above the motor shaft right placing groove; the connecting section of the right bottom fork supporting section and the bottom fork rotating shaft supporting sleeve is provided with a right arc-shaped anastomosis groove 213 which is anastomosed with the outer diameter of the bottom fork rotating shaft supporting sleeve; the arc-shaped inosculating groove structure is adopted to increase the contact area of the right bottom fork supporting arm and the bottom fork rotating shaft supporting sleeve, and the welding strength is improved.
The left bottom fork supporting section and the right bottom fork supporting section can be bent or molded in a curve along the length direction according to different vehicle types, so that the visual effect of the whole vehicle is improved.
The left bottom fork support arm and the right bottom fork support arm are connected with the bottom fork rotating shaft support sleeve through the reinforcing connecting plate 40; the reinforcing connecting plates are positioned at the welding ends of the left bottom fork supporting arm, the right bottom fork supporting arm and the bottom fork rotating shaft supporting sleeve, and are respectively welded with the left bottom fork supporting arm, the right bottom fork supporting arm and the bottom fork rotating shaft supporting sleeve; and a front supporting plate 41 of the clay tile is also integrally bent upwards on the reinforced connecting plate, and a long hole 42 for installing the clay tile is arranged on the front supporting plate of the clay tile.
In the above technical solution, preferably, an arc-shaped groove 116 is punched on the outer side surface of the web plate at the corner position of the left chain stay supporting section; a reinforcing rib 117 is formed on the inner side surface of the web; an arc-shaped groove 211 is punched on the outer side surface of the web plate at the corner position of the right bottom fork supporting section; ribs 212 are formed on the inner side of the web. The depth of the arc-shaped groove is not too deep easily; make the inboard strengthening rib that forms through punching press groove structure, improved the bearing strength of left chain stay support section and right chain stay support section.
The left anti-rotation hole of the vehicle ladder support and the right anti-rotation hole of the vehicle ladder support are square holes.
To sum up, because the utility model discloses back chain stay device's left chain stay support arm, right chain stay support arm adopt whole stamping structure, bend or punch a hole and form the installation station of other spare parts of electric motor car rear wheel by the direct punching press of a positive plate at left chain stay support arm, right chain stay support arm, for example spare parts such as shock absorber, expansion brake, car ladder, mud tile, and then solve current welded structure in bulk and have the defect that is heated and warp, the solder joint is many, production efficiency is low, intensity is low. Additionally, the utility model discloses an integrative stamping structure has advantages such as bearing capacity is strong, stable in quality, appearance are pleasing to the eye.
The above is only the preferred embodiment of the present invention, and the present invention is not limited to the above, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention, such as using different types of steel, changing the functional holes according to actual needs, or adding other functional holes or presetting functional holes, making linear or curved according to different vehicle types, should be included in the protection scope of the present invention.
Claims (4)
1. A rear bottom fork device for an electric vehicle comprises a left bottom fork supporting arm, a right bottom fork supporting arm and a bottom fork rotating shaft supporting sleeve; the front ends of the left bottom fork supporting arm and the right bottom fork supporting arm are symmetrically welded on a bottom fork rotating shaft supporting sleeve; the left bottom fork supporting arm comprises a left bottom fork supporting section and a motor left connecting section which are integrally punched; the cross section of the left bottom fork supporting section is of a C-shaped structure, and the left connecting section of the motor is of a flat plate type structure; the left bottom fork supporting section is in arc smooth transition connection with the left motor connecting section; a lower flange plate of the left bottom fork supporting section close to the left connecting section side of the motor is provided with an expansion brake fixing plate bent downwards; an expansion brake fixing long hole is formed in the expansion brake fixing plate; the motor left connecting section comprises a motor left mounting plate and a left shock absorber mounting seat which are integrally formed by stamping, a left shock absorber mounting hole is formed in the left shock absorber mounting seat, and a motor shaft left placing groove which is open to the tail end is formed in the middle of the motor left mounting plate; a left rear pedal mounting long hole is symmetrically formed in the motor left mounting plate at the blind end of the motor shaft left placing groove; a left motor wire bracket fixing hole is formed in the blind end of the left motor placing groove; a left anti-rotation hole of the vehicle ladder support is formed in the motor left mounting plate below the motor shaft left placing groove; the two sides of the left anti-rotation hole of the vehicle ladder support are symmetrically provided with left mounting holes of the vehicle ladder support; a left connecting hole of the clay tile bracket is arranged above the left placing groove of the motor shaft;
the right bottom fork supporting arm comprises a right bottom fork supporting section and a motor right connecting section which are integrally punched; the cross section of the right bottom fork supporting section is of a C-shaped structure, and the right connecting section of the motor is of a flat plate type structure; the right bottom fork supporting section is in arc smooth transition connection with the right motor connecting section; the motor right connecting section comprises a motor right mounting plate and a right shock absorber mounting seat which are integrally formed by stamping, a right shock absorber mounting hole is formed in the right shock absorber mounting seat, and a motor shaft right placing groove which is open to the tail end is formed in the middle of the motor right mounting plate; right rear pedal mounting long holes are symmetrically formed in the motor right mounting plate at the blind end of the motor shaft right placing groove; a blind end of the right motor placing groove is provided with a right motor wire bracket fixing hole; a right anti-rotation hole of the vehicle ladder support is formed in the right motor mounting plate below the right motor shaft placing groove; the two sides of the right anti-rotation hole of the vehicle ladder support are symmetrically provided with right mounting holes of the vehicle ladder support; a mud tile support right connecting hole is formed above the motor shaft right placing groove;
the left bottom fork supporting arm, the right bottom fork supporting arm and the bottom fork rotating shaft supporting sleeve are welded together through the reinforcing connecting plates; and a mud tile front support plate is also integrally bent upwards on the reinforcing connecting plate, and a mud tile mounting long hole is formed in the mud tile front support plate.
2. The rear fork apparatus for an electric vehicle according to claim 1, wherein: an arc-shaped groove is punched on the outer side surface of the web plate at the corner position of the left bottom fork supporting section; forming reinforcing ribs on the inner side surface of the web plate; an arc-shaped groove is punched on the outer side surface of the web plate at the corner position of the right bottom fork supporting section; and reinforcing ribs are formed on the inner side surface of the web plate.
3. The rear fork apparatus for an electric vehicle according to claim 1, wherein: the connecting section of the left bottom fork supporting section and the bottom fork rotating shaft supporting sleeve is provided with a left arc-shaped anastomosis groove which is anastomotic with the outer diameter of the bottom fork rotating shaft supporting sleeve; and the connecting section of the right bottom fork supporting section and the bottom fork rotating shaft supporting sleeve is provided with a right arc-shaped anastomosis groove which is anastomotic with the outer diameter of the bottom fork rotating shaft supporting sleeve.
4. The rear fork apparatus for an electric vehicle according to claim 1, wherein: the left anti-rotation hole of the vehicle ladder support and the right anti-rotation hole of the vehicle ladder support are square holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921751970.XU CN210618359U (en) | 2019-10-18 | 2019-10-18 | Rear bottom fork device for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921751970.XU CN210618359U (en) | 2019-10-18 | 2019-10-18 | Rear bottom fork device for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210618359U true CN210618359U (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921751970.XU Active CN210618359U (en) | 2019-10-18 | 2019-10-18 | Rear bottom fork device for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210618359U (en) |
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2019
- 2019-10-18 CN CN201921751970.XU patent/CN210618359U/en active Active
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