CN217753985U - Integral rear bottom fork with driving device and electric vehicle with integral rear bottom fork - Google Patents
Integral rear bottom fork with driving device and electric vehicle with integral rear bottom fork Download PDFInfo
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- CN217753985U CN217753985U CN202222187095.5U CN202222187095U CN217753985U CN 217753985 U CN217753985 U CN 217753985U CN 202222187095 U CN202222187095 U CN 202222187095U CN 217753985 U CN217753985 U CN 217753985U
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- sleeve
- middle shaft
- steel bowl
- mounting sleeve
- chain
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- 238000003466 welding Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 36
- 239000010959 steel Substances 0.000 claims description 36
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 38
- 230000001174 ascending effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a take drive arrangement's integral back chain stay and electric motor car thereof relates to electric motor car technical field, and this integral back chain stay includes mounting sleeve and two boundary beam pipes, and the boundary beam pipe syntropy welds on mounting sleeve, forms the stiff end, and the other end is established to the free end, and the one side relative with the boundary beam pipe on the mounting sleeve is equipped with the connecting plate, and the connecting plate is located between mounting sleeve and the well axle sleeve pipe, and with mounting sleeve and well axle sleeve pipe welding or integrated into one piece. The utility model discloses a connected mode furthest has shortened the distance between axis and the rear wheel axle, has shortened the length of chain promptly, uses the installation sleeve pipe as the lever shaft simultaneously for the chain receives ascending pulling force to reduce, reaches the purpose that prevents to touch other parts.
Description
Technical Field
The utility model belongs to the technical field of the electric motor car technique and specifically relates to a take drive arrangement's integral back chain stay and electric motor car thereof is related to.
Background
The electric vehicle is a simple tool for riding instead of walk, and has been deeply popularized in the life of common people in the society. Most of the forward power of the existing electric vehicles is provided by a battery and a motor, and some electric vehicles also need to be provided with pedal mechanisms so as to drive the electric vehicles to move forward by assisting manpower under the condition that the electric vehicles are lack of power. The main structure of the electric vehicle comprises a frame, a rear bottom fork and a front fork, wherein the rear bottom fork is connected with a rear wheel, and the front fork is connected with a front wheel.
The back chain stay includes installation sleeve pipe and two boundary beam pipes, an end welding of two boundary beam pipes is on installation sleeve pipe, another tip is used for installing the rear wheel, installation sleeve pipe welding is on the frame, because certain distance has between the installation sleeve pipe of back chain stay and the well axle sleeve pipe, the end distance running-board of back chain stay is far away, lead to needing longer chain, the pulling force of the shaft of arranging in on the boundary beam pipe chain on to the chain on the chain wheel needs longer reaction time, at the pedal in-process of riding, the chain is along with the chain wheel transmission time, upwards draw high very easily, touch other parts, influence the convenience that the electric motor car was ridden.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the utility model is to provide a take drive arrangement's integral back chain stay to solve among the prior art because the installation sleeve pipe welding of back chain stay leads to needing longer chain on the frame, at pedal in-process of riding, the chain is along with chain wheel transmission, and is very easy upwards drawn, leads to touching other parts, influences the technical problem of the electric motor car convenience of riding.
The second objective of the present invention is to provide an electric vehicle.
In order to realize one of the above-mentioned purposes, the utility model provides a take drive arrangement's integral back chain stay, including installation sleeve and two limit roof beam pipes, limit roof beam pipe syntropy weld in on the installation sleeve, form the stiff end, the other end is established to the free end, on the installation sleeve with one side that the limit roof beam pipe is relative is equipped with the connecting plate, the connecting plate is located between installation sleeve and the well axle sleeve, and with the installation sleeve with well axle sleeve welding or integrated into one piece.
According to a preferred embodiment, the mounting sleeve is mounted at both ends on the frame.
According to a preferred embodiment, the frame is provided with a hanging lug, the hanging lug is provided with an ear hole, and the mounting sleeve is connected with the frame through the ear hole.
According to a preferred embodiment, a reinforcing pipe is arranged between the side beam pipes, and two ends of the reinforcing pipe are welded on the side beam pipes.
According to a preferred embodiment, the free end of the side beam pipe is provided with a limiting groove body, and a left positioning hole and a right positioning hole of the balance motor are arranged in the limiting groove body.
According to a preferred embodiment, the free end of the side beam tube is further provided with a damper hanger.
According to a preferable embodiment, a middle shaft is arranged in the middle shaft sleeve, the middle shaft penetrates through the middle shaft sleeve, two ends of the middle shaft extend outwards, two ends of the middle shaft are connected with cranks, and the cranks are connected with pedals.
According to a preferred embodiment, the two ends of the middle shaft sleeve are provided with built-in threads, the two ends of the middle shaft sleeve are provided with a left steel bowl and a right steel bowl which are provided with through holes, the middle shaft penetrates through the left steel bowl and the right steel bowl simultaneously, the left steel bowl and the right steel bowl are both provided with external threads matched with the built-in threads, and steel balls are arranged in the left steel bowl and the right steel bowl.
According to a preferred embodiment, the middle shaft is provided with a chain wheel, and the chain wheel is in transmission connection with the rear wheel shaft through a chain.
In order to realize the second purpose, the utility model provides an electric vehicle, including the aforesaid arbitrary take drive arrangement's integral back chain stay, still include frame, front wheel, front chain stay and rear wheel, the rear wheel passes through the back chain stay is installed on the frame, the front wheel passes through the front chain stay is installed on the frame.
The utility model provides a take drive arrangement's integral back chain stay has following technological effect:
this take drive arrangement's integral back chain stay, including installation sleeve and two boundary beam pipes, the boundary beam pipe syntropy welds on installation sleeve, forms the stiff end, and the other end is established to the free end, and the last one side relative with the boundary beam pipe of installation sleeve is equipped with the connecting plate, and the connecting plate is located between installation sleeve and the well axle sleeve pipe to with installation sleeve and well axle sleeve pipe welding or integrated into one piece, the utility model discloses utilize the connecting plate to fix installation sleeve on well axle sleeve pipe, directly fix installation sleeve pipe on the frame with among the prior art and compare, the utility model discloses a connected mode furthest has shortened the distance between axis and the back axletree, has shortened the length of chain promptly, uses installation sleeve pipe as the lever shaft simultaneously for the chain receives ascending pulling force to reduce, reaches the purpose that prevents touching other parts.
Additionally, the utility model discloses a connecting plate is fixed the installation sleeve on the well axle sleeve pipe, more saves space, does benefit to the installation of other parts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of an electric vehicle according to an embodiment of the present invention;
FIG. 2 is another perspective view of the electric vehicle of FIG. 1;
FIG. 3 is a schematic structural view of a rear fork with a drive of the electric vehicle of FIG. 1;
fig. 4 is a side view of the rear fork of the belt drive of fig. 3.
Wherein, fig. 1-4:
1. a frame; 2. a front bottom fork; 3. a front wheel;
4. a rear bottom fork; 41. a side beam tube; 411. a limiting part groove body; 412. positioning holes; 413. a shock absorber suspension loop; 42. installing a sleeve; 43. a reinforcement tube;
5. a rear wheel; 6. a shock absorber;
7. a drive device; 71. a middle shaft; 72. a crank; 73. pedaling; 74. a middle shaft sleeve; 75. a left steel bowl; 76. a right steel bowl; 77. a chain wheel; 78. a connecting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Just as the background art said, the back chain stay that adopts among the prior art includes installation sleeve pipe and two boundary beam pipes, an tip welding of two boundary beam pipes is on the installation sleeve pipe, another tip is used for installing the rear wheel, the installation sleeve pipe welding is on the frame, because have certain distance between the installation sleeve pipe of back chain stay and the well axle sleeve pipe, the end of back chain stay is far away from the running-board, lead to needing longer chain, the pulling force of the shaft of arranging on the boundary beam pipe on to the chain on the chain wheel needs longer reaction time, in the pedal in-process of riding, the chain is along with chain wheel transmission, upwards drawn high very easily, touch other parts, influence the convenience that the electric motor car was ridden.
Based on this, the utility model provides a take drive arrangement's integral back chain stay, including installation sleeve and two boundary beam pipes, the boundary beam pipe syntropy welds on installation sleeve, forms the stiff end, and the other end is established to the free end, and the one side relative with the boundary beam pipe on the installation sleeve is equipped with the connecting plate, and the connecting plate is located between installation sleeve and the well axle sleeve to with installation sleeve and well axle sleeve welding or integrated into one piece, the utility model discloses utilize the connecting plate to fix the installation sleeve on well axle sleeve, directly fix the installation sleeve on the frame with among the prior art and compare, the utility model discloses a connected mode furthest has shortened the distance between axis and the back axletree, has shortened the length of chain promptly, uses the installation sleeve to the lever shaft simultaneously for the chain receives ascending pulling force to reduce, reaches the purpose that prevents touching other parts.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings 1-4.
Example 1:
the structure of the electric vehicle provided by the embodiment, as shown in fig. 1 and fig. 2, includes a frame 1, a front wheel 3, a front fork 2, a rear wheel 5, and a rear fork 4, wherein the front wheel 3 is mounted on the front fork 2, the rear wheel 5 is mounted on the rear fork 4, and the front fork 2 and the rear fork 4 are mounted at two ends of the frame 1.
Example 2:
the present embodiment further illustrates the structure of the rear bottom fork 4 and the installation manner thereof, and compared with the conventional electric vehicle in which the rear bottom fork 4 is directly installed on the frame 1, the rear bottom fork 4 of the present embodiment is installed on the middle axle sleeve 74 through the connecting plate 78, so that the distance between the installation sleeve 42 and the middle axle sleeve 74 is shortened.
The rear bottom fork 4 of this embodiment includes installation sleeve 42 and two boundary beam pipes 41, as shown in fig. 3 and 4, the length of two boundary beam pipes 41 is unanimous, and extend along same direction, the end of two boundary beam pipes 41 is arc, the radian is unanimous with the radian of installation sleeve 42 outer wall, the one end at two boundary beam pipes 41 is installed to boundary beam pipe 41, and two boundary beam pipes 41 weld on installation sleeve 42, the welding end of boundary beam pipe 41 is the stiff end, the other end is the free end, the free end is used for connecting rear wheel 5 and bumper shock absorber 6.
It should be noted that the connection manner between the rear wheel 5 and the shock absorber 6 and the rear fork 4 is common in the prior art, and the details of this embodiment are not described herein.
As shown in fig. 3 and 4, a driving device 7 is disposed on one side of the rear bottom fork 4, the driving device 7 includes pedals 73, a crank 72, a middle shaft 71 and a middle shaft sleeve 74, the pedals 73 and the crank 72 are disposed at two ends of the middle shaft 71 in pairs, the middle shaft sleeve 74 is sleeved on the middle shaft 71, and the middle shaft sleeve 74 and the middle shaft 71 are connected through a steel bowl.
Specifically, built-in threads are arranged at two ends of the middle shaft sleeve 74, a left steel bowl 75 and a right steel bowl 76 with through holes are arranged at two ends of the middle shaft sleeve 74, the middle shaft 71 penetrates through the left steel bowl 75 and the right steel bowl 76 at the same time, external threads matched with the built-in threads are arranged on the left steel bowl 75 and the right steel bowl 76, the left steel bowl 75 and the right steel bowl 76 are installed between the middle shaft sleeve 74 and the middle shaft 71 through threaded connection of the built-in threads and the external threads, steel balls are arranged in the left steel bowl 75 and the right steel bowl 76, and 360 rotations of the middle shaft 71 are guaranteed through the steel balls.
In addition, be equipped with chain wheel 77 in the axis 71, chain wheel 77 passes through chain drive with 5 axles of rear wheel and is connected, and the driving method between chain wheel 77 and axis 71 and the chain is comparatively common at prior art, the utility model discloses do not give unnecessary details.
It should be noted that, the middle shaft sleeve 74 and the middle shaft 71 are not limited to be connected through a steel bowl, but can also be connected through a bearing, as long as the middle shaft 71 can rotate 360 degrees in the middle shaft sleeve 74 under the action of the pedals 73, which is within the protection scope of the present invention.
As shown in fig. 3 and 4, the mounting sleeve 42 of the present embodiment is connected to the central shaft sleeve 74 of the driving device 7 through a connecting plate 78, the connecting plate 78 is small in size as long as the central shaft sleeve 74 and the mounting sleeve 42 can be connected, and the connecting plate 78 is disposed between the mounting sleeve 42 and the central shaft sleeve 74 and welded to the mounting sleeve 42 and the central shaft sleeve 74.
The connecting plate 78 can also be integrally formed with the mounting sleeve 42 and the middle shaft sleeve 74, as long as the purpose of fixedly connecting between the mounting sleeve 42 and the middle shaft sleeve 74 can be achieved, which is all within the protection scope of the present invention.
As shown in fig. 3, two ends of the mounting sleeve 42 are mounted on the frame 1, and specifically as shown in fig. 3, a suspension loop is disposed on the frame 1, an ear hole is disposed on the suspension loop, the mounting sleeve 42 is connected with the frame 1 through the ear hole, and the mounting sleeve 42 is mounted on the frame 1, so that the firmness of the mounting sleeve 42 can be increased.
In order to further increase the firmness of the rear fork 4, as shown in fig. 3, a reinforcing tube 43 is arranged between the side frame tubes 41, both ends of the reinforcing tube 43 are welded to the side frame tubes 41, and the two side frame tubes 41 and the reinforcing tube 43 form an H-shaped structure.
Further, in order to connect the rear wheel 5 and the damper 6, as shown in fig. 3 and 4, a damper hanging lug 413 is further provided at the free end of the side member pipe 41, and the rear bottom fork 4 can be connected to the damper 6 via the damper hanging lug 413.
The free end of the side beam pipe 41 is provided with a limiting portion groove body 411, a left positioning hole 412 and a right positioning hole 412 of the balancing motor are arranged in the limiting portion groove body 411, and the positioning holes 412 are used for balancing the motor.
The rear bottom fork 4 in this embodiment can be directly connected with the driving device 7, and in the pedal riding process, the mounting sleeve 42 is used as a lever shaft, so that the upward pulling force applied to the chain is reduced. The whole stress of the chain is more balanced.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a take drive arrangement's integral back chain stay, includes mounting sleeve and two boundary beam pipes, the boundary beam pipe syntropy weld in on the mounting sleeve, form the stiff end, the other end is established to the free end, its characterized in that, mounting sleeve is last with one side that the boundary beam pipe is relative is equipped with the connecting plate, the connecting plate is located between mounting sleeve and the well sleeve pipe, and with mounting sleeve with well sleeve pipe welding or integrated into one piece.
2. The integrated chain stay with drive of claim 1 wherein both ends of the mounting sleeve are mounted to the frame.
3. The integrated rear fork with the driving device according to claim 2, wherein the frame is provided with a suspension loop, the suspension loop is provided with an ear hole, and the mounting sleeve is connected with the frame through the ear hole.
4. The integrated rear fork with a drive device of claim 1, wherein a reinforcing tube is arranged between the side frame tubes, and both ends of the reinforcing tube are welded on the side frame tubes.
5. The integral type rear fork with the driving device according to claim 4, wherein a limiting groove body is arranged at the free end of the side beam pipe, and left and right positioning holes of the balancing motor are arranged in the limiting groove body.
6. The integrated chain stay with drive of claim 4 wherein the free end of the side rail tube is further provided with a shock absorber lug.
7. The integrated chain stay with a driving device as claimed in claim 4, wherein a middle shaft is arranged in the middle shaft sleeve, the middle shaft penetrates through the middle shaft sleeve, two ends of the middle shaft extend outwards, two ends of the middle shaft are connected with cranks, and the cranks are connected with pedals.
8. The integral type rear fork with the driving device according to claim 7, wherein the middle shaft sleeve is provided with built-in threads at two ends, the middle shaft sleeve is provided with a left steel bowl and a right steel bowl at two ends, the left steel bowl and the right steel bowl are provided with through holes, the middle shaft penetrates through the left steel bowl and the right steel bowl at the same time, the left steel bowl and the right steel bowl are provided with external threads matched with the built-in threads, and steel balls are arranged in the left steel bowl and the right steel bowl.
9. The integrated chain stay with drive of claim 8 wherein the bottom bracket axle has a chain wheel, the chain wheel is in driving connection with the rear wheel axle through a chain.
10. An electric vehicle comprising the integrated rear fork with a drive unit of any one of claims 1 to 9, further comprising a frame, a front wheel, a front fork, and a rear wheel, wherein the rear wheel is mounted to the frame via the rear fork, and the front wheel is mounted to the frame via the front fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222187095.5U CN217753985U (en) | 2022-08-18 | 2022-08-18 | Integral rear bottom fork with driving device and electric vehicle with integral rear bottom fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222187095.5U CN217753985U (en) | 2022-08-18 | 2022-08-18 | Integral rear bottom fork with driving device and electric vehicle with integral rear bottom fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217753985U true CN217753985U (en) | 2022-11-08 |
Family
ID=83880964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222187095.5U Active CN217753985U (en) | 2022-08-18 | 2022-08-18 | Integral rear bottom fork with driving device and electric vehicle with integral rear bottom fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217753985U (en) |
-
2022
- 2022-08-18 CN CN202222187095.5U patent/CN217753985U/en active Active
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