CN112356948A - Rear wheel bracket of electric vehicle - Google Patents
Rear wheel bracket of electric vehicle Download PDFInfo
- Publication number
- CN112356948A CN112356948A CN202011346650.3A CN202011346650A CN112356948A CN 112356948 A CN112356948 A CN 112356948A CN 202011346650 A CN202011346650 A CN 202011346650A CN 112356948 A CN112356948 A CN 112356948A
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- limiting
- installation
- mounting
- spring
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
- B62H1/00—Supports or stands forming part of or attached to cycles
- B62H1/02—Articulated stands, e.g. in the shape of hinged arms
- B62H1/04—Substantially U-shaped stands for embracing the rear wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
- B62H1/00—Supports or stands forming part of or attached to cycles
- B62H1/10—Supports or stands forming part of or attached to cycles involving means providing for a stabilised ride
- B62H1/12—Supports or stands forming part of or attached to cycles involving means providing for a stabilised ride using additional wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The invention belongs to the technical field of rear wheel supports, and particularly relates to a rear wheel support of an electric vehicle, which comprises a fixed plate, a pedal locking plate, an adjusting frame rod, a support base, a first spring and a second spring.
Description
Technical Field
The invention belongs to the technical field of rear wheel supports, and particularly relates to a rear wheel support of an electric vehicle.
Background
Along with the higher and higher environmental requirements of people, the demand of electric vehicles is higher and higher.
For office workers close to home and parents who send children to and from schools, the electric bicycles are more and more highly used by people of the type because the electric bicycles are small in size, the parking space required by the electric bicycles during parking is relatively small compared with automobiles, and the probability that the electric bicycles are blocked during driving on roads is relatively small.
When the existing electric bicycle is parked, the rear wheel support is supported, the distance between the rear wheel and the ground is relatively large, when people lift the rear wheel support, the gravity of the electric bicycle needs to be overcome, and the higher the lifting is, the larger the required force is, the more strenuous is for users, especially for the old people who send children; however, in this respect, the height of the rear wheel support is reduced, so that the distance between the rear wheel and the ground is reduced after the rear wheel support is supported, and thus although the force required for a person to lift the rear wheel support for parking is reduced during ordinary use, the rear wheel is lifted to a smaller height during maintenance, which may affect maintenance.
The invention designs a rear wheel bracket of an electric vehicle to solve the problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention discloses a rear wheel bracket of an electric vehicle, which is realized by adopting the following technical scheme.
A rear wheel bracket of an electric vehicle comprises fixed plates, pedal locking plates, an adjusting frame rod, a bracket base, a first spring and a second spring, wherein the lower ends of the fixed plates are provided with arc-shaped sliding grooves, one side of each fixed plate is fixedly provided with a support lug, and the two fixed plates are fixedly arranged on a vehicle frame through bolts; the two adjusting frame rods are symmetrically arranged on the two fixing plates in a swinging mode, and the lower ends of the two adjusting frame rods are fixedly connected through the bracket base; a sliding shaft is fixedly arranged on each of the two adjusting frame rods, and a first fixing plate is arranged at one end of each sliding shaft, which is far away from each adjusting frame rod; the two sliding shafts are respectively in one-to-one corresponding sliding fit with the two sliding grooves formed on the two fixing plates; one side of one of the two adjusting frame rods is provided with an installation hook, a first spring is arranged between the installation hook and a support lug installed on the corresponding fixing plate, and the swinging point of the adjusting frame rod is positioned between the corresponding support lug and the installation hook; a pedal locking plate is arranged on the other regulating frame rod in the two regulating frame rods in a swinging mode, a second spring is arranged between the pedal locking plate and a support lug arranged on the corresponding fixing plate, and the swinging point of the pedal locking plate is located between the corresponding support lug and the connecting point of the pedal locking plate and the second spring; adjusting threaded sleeves are arranged between the two adjusting frame rods and the frame rod base, and the adjusting threaded sleeves are rotated to drive the two adjusting frame rods to extend and shorten the distance between the two adjusting frame rods and the frame rod base through threaded matching; the two adjusting frame rods are both of telescopic structures.
The adjusting rack rod comprises a winding wheel, a sliding block, a telescopic outer sleeve, a fourth spring, a telescopic inner rod, a first pull rope, a limiting mechanism, a second pull rope, an installation rotating shaft, a fixed pulley, a first volute spring and a lock mechanism, wherein one end of the telescopic outer sleeve is provided with a second fixed plate, one end, far away from the telescopic outer sleeve, of the second fixed plate is provided with an installation groove, one end, close to the second fixed plate, of the inner side of the telescopic outer sleeve is provided with a first installation sliding groove, the other end of the telescopic outer sleeve is provided with a second installation sliding groove, and the inner circular surface of the second installation sliding; the second fixing plate is arranged on the corresponding fixing plate through a swinging shaft, one end of the telescopic inner rod is arranged in the second mounting chute in a sliding manner and is positioned on one side of the limiting ring away from the first mounting chute, and the telescopic inner rod is matched with the limiting ring; a fourth spring is arranged between the telescopic inner rod and the inner end face of the second mounting chute; the sliding block is slidably arranged in the first installation chute, a fixed pulley is arranged on the sliding block through an installation rotating shaft, and a first scroll spring is arranged between the installation rotating shaft and the first installation chute; one end of a first pull rope is fixedly arranged on the end face of one side of the first mounting chute, which is close to the second mounting chute, and the other end of the first pull rope extends into the second mounting chute through a fixed pulley and is fixedly connected with the telescopic inner rod; the winding wheel is fixedly arranged on the oscillating shaft and positioned in the mounting groove, a second pull rope is wound on the winding wheel, and one end of the second pull rope extends into the first mounting chute and is fixedly connected with the sliding block; a lock mechanism is arranged between the swing shaft and the corresponding fixed plate, and a limit mechanism is arranged on the telescopic outer sleeve.
The outer circular surface of one end of the swinging shaft is provided with an installation chute; the outer circular surface of the telescopic outer sleeve, which is provided with one end of the second mounting chute, is provided with a mounting shell, the mounting shell is provided with an opening, and the mounting shell is communicated with the second mounting chute.
The locking mechanism comprises a limiting wheel, an adjusting block, a limiting sliding block and a third spring, wherein a limiting hole is formed in the outer circular surface of the limiting wheel, the limiting wheel is fixedly arranged on the fixing plate on one corresponding side, the limiting sliding block is slidably arranged in an installation sliding groove formed in the oscillating shaft and a limiting hole formed in the limiting wheel, and the third spring is arranged between one end, located in the installation sliding groove, of the limiting sliding block and the inner end surface of the installation sliding groove; the adjusting block is slidably mounted in a limiting hole formed in the limiting wheel.
The limiting mechanism comprises a limiting rod, a second volute spring and a swing shaft, wherein the limiting rod is installed in the installation shell through swing of the swing shaft, one end of the limiting rod is located at the opening of the installation shell, the second volute spring is installed between the swing shaft and the installation shell, and the limiting rod is matched with the telescopic inner rod.
As a further improvement of the technology, the supporting base is provided with a supporting wheel, after the rear wheel of the electric vehicle is supported, the supporting wheel is contacted with the ground, and simultaneously the supporting wheel is contacted with the rear wheel of the electric vehicle.
As a further improvement of the technology, both ends of the adjusting threaded sleeve are provided with a plurality of clamping arc plates which are uniformly distributed, the outer circular surface of each clamping arc plate is conical, the inner circular surface of the adjusting threaded sleeve is provided with internal threads, and the outer circular surface of the adjusting threaded sleeve is provided with external threads; external threads are arranged on the outer circular surfaces of the upper ends of the two sides of the telescopic inner rod and the support base respectively, and the adjusting threaded sleeve is installed between the telescopic inner rod and the support base through the thread matching of the internal threads and the external threads; the internal circular surface of the tightening thread sleeve is provided with an internal thread, the two tightening thread sleeves are arranged at two ends of the adjusting thread sleeve through thread fit, and the two tightening thread sleeves are in extrusion fit with the clamping arc plates at the two ends.
As a further improvement of the technology, the fixed plate is provided with a shaft hole for the swinging shaft to pass through, and a bearing is arranged between the swinging shaft and the shaft hole.
As a further improvement of the technology, one side of the mounting shell is provided with a mounting circular groove, one end of the mounting rotating shaft is rotatably mounted in the mounting circular groove, the inner end of the first scroll spring is fixedly mounted on the mounting rotating shaft, and the outer end of the first scroll spring is fixedly mounted on the circular surface of the mounting circular groove; the first scroll spring has pre-pressure, and under the pre-pressure, when the sliding block is not pulled, the sliding block is contacted with the end face of one side of the first mounting sliding groove, which is close to the second mounting sliding groove.
As a further improvement of the technology, one side of the first installation chute formed on the telescopic outer sleeve is provided with a guide chute, one side of the guide chute is provided with a rope hole communicated with the outside, an installation sliding block is fixedly installed on the sliding block and is in sliding fit with the guide chute, and one end of the second pull rope penetrates through the rope hole to be fixedly connected with the installation sliding block.
As a further improvement of this technique, the fourth spring is a compression spring and has a pre-pressure.
As a further improvement of the technology, the second volute spiral spring has pre-pressure, and under the pre-pressure, when the limiting rod is not manually pulled from the outside to the inside of the opening of the mounting shell, the limiting rod is vertically placed along the axis of the telescopic outer sleeve, and the sliding of the telescopic inner rod cannot be influenced.
As a further improvement of the technology, the limiting wheels are fixedly arranged on the corresponding fixing plates in a welding mode.
As a further improvement of the technology, the supporting wheel is arranged on the bracket base through a bearing.
Compared with the traditional rear wheel bracket technology, the design of the invention has the following beneficial effects:
1. the rear wheel bracket has the advantages that the distance between the two adjusting frame rods and the frame rod base can be manually adjusted by rotating the adjusting threaded sleeves, so that the overall height of the rear wheel bracket is adjusted, and the rear wheel bracket can meet the requirements of electric vehicles of various models on the wheel bracket.
2. According to the invention, the adjusting frame rod is designed into a telescopic structure, in the process of supporting the adjusting frame rod, the adjusting frame rod is gradually shortened along with the increase of a downward swing angle, finally the bottom of the supporting rear bracket base is basically at the same height as the lowest point of the rear wheel, the height of the rear wheel of the electric vehicle required to be lifted after the rear wheel support is supported is reduced, and the labor force of a user during parking is reduced.
3. When the rear wheel of the electric bicycle needs to be maintained, the rear wheel needs to be supported through a rear wheel support, and at the moment, in order to ensure the space during maintenance, when the rear wheel support is supported, two adjusting frame rods cannot be shortened.
4. After the electric vehicle is parked, if the accelerator is rotated carelessly, the rear wheel of the electric vehicle can be driven to rotate, so that the parked electric vehicle suddenly moves forwards and falls down; according to the invention, through the designed supporting wheel, in this state, the rear wheel rotates to drive the supporting wheel to rotate through friction, and the supporting wheel absorbs a part of rotating force to reduce the forward transmission force of the electric vehicle; on the other hand, the rotation directions of the supporting wheels and the rear wheels are opposite, and the force applied by the rotating supporting wheels to the rear direction and the force applied by the wheels to the front direction offset a part of each other, so that the safety is improved.
5. According to the invention, the adjusted adjusting threaded sleeve can be tightened with the telescopic inner rod and the support base by rotating the tightening threaded sleeve, and the tightening threaded sleeve can extrude the clamping arc plate during tightening, so that the clamping arc plate clamps the telescopic inner rod or the support base on the corresponding side, and the stability in the use process is ensured.
Drawings
Fig. 1 is an external view of an entire part.
Fig. 2 is a schematic view of an adjustment screw sleeve installation.
Fig. 3 is a schematic view of the first spring, second spring and support wheel installation.
Figure 4 is a schematic view of the mounting of the pedal lock plate.
Fig. 5 is a schematic view of the construction of the pedal lock plate.
Fig. 6 is a schematic view of a lock mechanism configuration.
Fig. 7 is a schematic view of the adjustment mast mounting.
Fig. 8 is a schematic view of a regulating frame rod structure.
Fig. 9 is a schematic view of the structure of the telescopic jacket.
Fig. 10 is a schematic structural view of a limiting rod and a telescopic inner rod.
Number designation in the figures: 1. a fixing plate; 2. a pedal lock plate; 3. a regulating rack rod; 4. a bracket base; 5. a limiting mechanism; 6. a support wheel; 7. tightening the threaded sleeve; 8. adjusting the threaded sleeve; 9. clamping the arc plate; 10. a first spring; 11. installing a hook; 12. a second spring; 13. a lock mechanism; 14. a limiting wheel; 15. a limiting hole; 16. a swing shaft; 17. an adjusting block; 18. a limiting slide block; 19. installing a chute; 20. a third spring; 21. a sliding shaft; 22. a first shaft hole; 23. supporting a lug; 24. an arc-shaped sliding groove; 25. a first fixing plate; 26. a winding wheel; 27. a slider; 28. a telescopic outer sleeve; 29. a fourth spring; 30. a telescopic inner rod; 31. a first pull cord; 32. a second fixing plate; 33. mounting grooves; 34. a rope hole; 35. a first mounting chute; 36. a guide chute; 37. a second mounting chute; 38. a limiting ring; 39. installing a circular groove; 40. mounting a shell; 41. a second pull cord; 42. installing a sliding block; 43. installing a rotating shaft; 44. a fixed pulley; 45. a first scroll spring; 46. a limiting rod; 47. a second scroll spring; 48. and (4) swinging the shaft.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention. The state shown in the attached drawing of the invention is the state after the bracket is horizontally swung up, and the angle and the direction of the model are flexibly adjusted for the convenience of drawing.
As shown in fig. 1, the bicycle frame comprises a fixed plate 1, a pedal locking plate 2, an adjusting frame rod 3, a bracket base 4, a first spring 10 and a second spring 12, wherein as shown in fig. 7, the lower end of the fixed plate 1 is provided with an arc-shaped sliding groove 24, one side of the fixed plate 1 is fixedly provided with a support lug 23, and the two fixed plates 1 are fixedly arranged on a bicycle frame through bolts; as shown in fig. 4 and 7, two adjusting frame rods 3 are symmetrically and swing on two fixed plates 1, and the lower ends of the two adjusting frame rods 3 are fixedly connected through a bracket base 4; as shown in fig. 7, a sliding shaft 21 is fixedly mounted on each of the two adjusting frame rods 3, and a first fixing plate 25 is mounted at one end of each sliding shaft 21 away from the adjusting frame rod 3; the two sliding shafts 21 are respectively in one-to-one corresponding sliding fit with the two sliding grooves formed on the two fixing plates 1; as shown in fig. 4, one side of one of the two adjusting frame rods 3 is installed with an installing hook 11, a first spring 10 is installed between the installing hook 11 and a support lug 23 installed on the corresponding fixing plate 1, and the swinging point of the adjusting frame rod 3 is located between the corresponding support lug 23 and the installing hook 11; as shown in fig. 4, the other adjusting frame rod 3 of the two adjusting frame rods 3 is provided with a pedal locking plate 2 in a swinging manner, as shown in fig. 5, a second spring 12 is arranged between the pedal locking plate 2 and a supporting lug 23 arranged on the corresponding fixing plate 1, and the swinging point of the pedal locking plate 2 is located between the corresponding supporting lug 23 and the connecting point of the pedal locking plate 2 and the second spring 12; as shown in fig. 8, an adjusting threaded sleeve 8 is installed between the two adjusting frame rods 3 and the frame rod base, and the adjusting threaded sleeve 8 is rotated to drive the two adjusting frame rods 3 to extend and shorten the distance between the frame rod base and the frame rod base through threaded fit; the two adjusting frame rods 3 are both of telescopic structures.
The structure and installation relationship of the fixing plate 1, the pedal locking plate 2, the first spring 10 and the second spring 12 are the same as those of the fixing plate 1, the pedal locking plate 2 and the springs on the existing electric vehicle rear wheel support, so that the fixing plate 1, the pedal locking plate 2, the first spring 10 and the second spring 12 are the prior art.
The invention guides the swinging of the adjusting frame rod 3 by the matching of the two sliding shafts 21 and the two sliding grooves formed on the two fixed plates 1.
Because the wheels of the electric vehicles of various models have different sizes and have different requirements on the size and the height of the rear wheel bracket, the distance between the two adjusting frame rods 3 and the frame rod base can be manually adjusted by rotating the adjusting threaded sleeves 8, so that the overall height of the rear wheel bracket is adjusted, and the rear wheel bracket can meet the requirements of the electric vehicles of various models on the wheel bracket.
According to the invention, the adjusting frame rod 3 is designed into a telescopic structure, in the process of supporting the adjusting frame rod 3, the adjusting frame rod 3 is gradually shortened along with the increase of a downward swinging angle, finally the bottom of the supporting rear bracket base 4 is basically at the same height as the lowest point of the rear wheel, the height of the rear wheel of the electric vehicle required to be lifted after the rear wheel support is supported is reduced, and the labor force for a user to stop the electric vehicle is reduced.
As shown in fig. 7 and 8, the adjusting frame rod 3 includes a winding wheel 26, a sliding block 27, a telescopic outer sleeve 28, a fourth spring 29, a telescopic inner rod 30, a first pull rope 31, a limiting mechanism 5, a second pull rope 41, an installation rotating shaft 43, a fixed pulley 44, a first scroll spring 45 and a lock mechanism 13, wherein as shown in fig. 9, one end of the telescopic outer sleeve 28 is provided with a second fixed plate 32, one end of the second fixed plate 32, which is far away from the telescopic outer sleeve 28, is provided with an installation groove 33, one end of the inner side of the telescopic outer sleeve 28, which is close to the second fixed plate 32, is provided with a first installation chute 35, the other end is provided with a second installation chute 37, and an inner circular surface of the second installation chute 37; the second fixing plate 32 is mounted on the corresponding fixing plate 1 through the swing shaft 16, as shown in fig. 8, one end of the telescopic inner rod 30 is slidably mounted in the second mounting chute 37 and is located on one side of the limiting ring 38 away from the first mounting chute 35, and the telescopic inner rod 30 is matched with the limiting ring 38; as shown in fig. 10, a fourth spring 29 is installed between the telescopic inner rod 30 and the inner end surface of the second installation chute 37; the sliding block 27 is slidably mounted in the first mounting chute 35, the sliding block 27 is provided with a fixed pulley 44 through a mounting rotating shaft 43, and a first scroll spring 45 is mounted between the mounting rotating shaft 43 and the first mounting chute 35; one end of the first pulling rope 31 is fixedly installed on the end surface of the first installation chute 35 close to one side of the second installation chute 37, and the other end of the first pulling rope 31 extends into the second installation chute 37 through the fixed pulley 44 to be fixedly connected with the telescopic inner rod 30; the winding wheel 26 is fixedly arranged on the swinging shaft 16 and is positioned in the mounting groove 33, a second pull rope 41 is wound on the winding wheel 26, and one end of the second pull rope 41 extends into the first mounting chute 35 to be fixedly connected with the sliding block; a locking mechanism 13 is arranged between the swinging shaft 16 and the corresponding fixed plate 1, and a limiting mechanism 5 is arranged on the telescopic outer sleeve 28.
One end of a first pull rope 31 designed by the invention is fixedly arranged on the end surface of one side of a first installation chute 35 formed on the corresponding telescopic outer sleeve 28, the other end of the first pull rope 31 passes through a corresponding fixed pulley 44 to be fixedly connected with a telescopic inner rod 30 on the corresponding side, and the design of the fixed pulley 44 realizes the function of amplified transmission, so that when two adjusting frame rods 3 swing for 90 degrees, the sliding distances of the two first pull ropes 31 on the two sides can retract the telescopic inner rods 30 on the two sides to the required degree, namely after the adjusting frame rods 3 are supported, the bottom of the bracket base 4 basically reaches the same height as the lowest point of the rear wheel.
The limiting ring 38 designed by the invention has the function of limiting the corresponding telescopic inner rod 30, and after the telescopic inner rod 30 retracts into the corresponding telescopic outer sleeve 28 along with the 90-degree swinging of the adjusting bracket, one end of the telescopic inner rod 30, which is positioned at the telescopic outer sleeve 28, is just in contact fit with the limiting ring 38; after the support is erected, the supporting force of the ground on the telescopic inner rod 30 can be transmitted to the corresponding telescopic outer sleeve 28 through the limiting ring 38 instead of the fourth spring 29, so that the service life of the fourth spring 29 is prolonged, and the stability of the rear wheel support after the support is erected is improved. The fourth spring 29 is designed to return the telescopic inner rod 30.
According to the invention, the first volute spring 45 has pre-pressure, so that when the sliding block 27 is not pulled, the sliding block 27 is ensured to be in contact with the end surface of the first mounting chute 35 close to the second mounting chute 37 under the pre-pressure, the first pull rope 31 or the second pull rope 41 is prevented from loosening, and when the adjusting rack rod 3 swings, the telescopic inner rod 30 cannot be normally retracted into the telescopic outer sleeve 28, or the retracted length is insufficient, so that the use of the bracket is finally influenced.
As shown in fig. 6, a mounting chute 19 is formed on the outer circumferential surface of one end of the swing shaft 16; the outer circular surface of the telescopic outer sleeve 28, which is provided with one end of the second mounting chute 37, is provided with a mounting shell 40, the mounting shell is provided with an opening, and the mounting shell 40 is communicated with the second mounting chute 37.
As shown in fig. 6, the lock mechanism 13 includes a limiting wheel 14, an adjusting block 17, a limiting slider 18, and a third spring 20, wherein a limiting hole 15 is formed on an outer circumferential surface of the limiting wheel 14, the limiting wheel 14 is fixedly mounted on the fixing plate 1 on the corresponding side, the limiting slider 18 is slidably mounted in a mounting chute 19 formed on the swing shaft 16 and a limiting hole 15 formed on the limiting wheel 14, and the third spring 20 is mounted between one end of the limiting slider 18 located in the mounting chute 19 and an inner end surface of the mounting chute 19; the adjusting block 17 is slidably mounted in a limiting hole 15 formed in the limiting wheel 14.
As shown in fig. 10, the limiting mechanism 5 includes a limiting rod 46, a second spiral spring 47, and a swing shaft 48, wherein the limiting rod 46 is installed in the installation housing 40 through the swing shaft 48 in a swinging manner, one end of the limiting rod 46 is located at an opening of the installation housing 40, the second spiral spring 47 is installed between the swing shaft 48 and the installation housing 40, and the limiting rod 46 is engaged with the telescopic inner rod 30.
As shown in fig. 3, the supporting base is provided with a supporting wheel 6, and after the rear wheel of the electric vehicle is lifted, the supporting wheel 6 is in contact with the ground, and simultaneously, the supporting wheel 6 is in contact with the rear wheel of the electric vehicle. After the electric vehicle is parked, if the accelerator is rotated carelessly, the rear wheel of the electric vehicle can be driven to rotate, so that the parked electric vehicle suddenly moves forwards and falls down; according to the invention, through the designed supporting wheel 6, in this state, the rear wheel rotates to drive the supporting wheel 6 to rotate through friction, and the supporting wheel 6 absorbs a part of rotating force to reduce the forward transmission force of the electric vehicle; on the other hand, the rotation directions of the supporting wheels 6 and the rear wheels are opposite, and the force applied by the rotating supporting wheels 6 to the ground backwards and the force applied by the wheels to the ground forwards are partially offset, so that the safety is improved.
As shown in fig. 2, both ends of the adjusting threaded sleeve 8 are provided with a plurality of clamping arc plates 9 which are uniformly distributed, the outer circular surface of each clamping arc plate 9 is conical, the inner circular surface of the adjusting threaded sleeve 8 is provided with internal threads, and the outer circular surface is provided with external threads; external threads are arranged on the outer circular surfaces of the upper ends of the two sides of the telescopic inner rod 30 and the support base respectively, and the adjusting threaded sleeve 8 is installed between the telescopic inner rod 30 and the support base through the thread matching of the internal threads and the external threads; the inner circular surface of the tightening thread bush 7 is provided with an internal thread, two tightening thread bushes 7 are arranged at two ends of the adjusting thread bush 8 through thread fit, and the two tightening thread bushes 7 are in extrusion fit with clamping arc plates 9 at the two ends. In the invention, the adjusted adjusting threaded sleeve 8, the telescopic inner rod 30 and the support base 4 can be tightened by rotating the tightening threaded sleeve 7, and the tightening threaded sleeve 7 can extrude the clamping arc plate 9 during tightening, so that the clamping arc plate 9 can clamp the telescopic inner rod 30 or the support base 4 on the corresponding side, and the stability in the use process is ensured.
The fixed plate 1 is provided with a shaft hole for the swinging shaft 16 to pass through, and a bearing is arranged between the swinging shaft 16 and the shaft hole.
As shown in fig. 9, one side of the mounting housing 40 has a mounting circular groove 39, and one end of the mounting rotating shaft 43 is rotatably mounted in the mounting circular groove 39, as shown in fig. 10, the inner end of the first spiral spring 45 is fixedly mounted on the mounting rotating shaft 43, and the outer end of the first spiral spring 45 is fixedly mounted on the circular surface of the mounting circular groove 39; the first spiral spring 45 has a pre-pressure, and under this pre-pressure, when the slide block 27 is not pulled, the slide block 27 is in contact with the end surface of the first mounting chute 35 on the side close to the second mounting chute 37.
As shown in fig. 9, a guide chute 36 is formed at one side of the first mounting chute 35 formed in the telescopic outer sleeve 28, a rope hole 34 communicating with the outside is formed at one side of the guide chute 36, a mounting slider 42 is fixedly mounted on the sliding block 27, the mounting slider 42 is slidably fitted to the guide chute 36, and one end of the second rope 41 passes through the rope hole 34 and is fixedly connected to the mounting slider 42.
The fourth spring 29 is a compression spring and has a preload.
The second volute spring 47 has a pre-pressure, so that when the limiting rod 46 is not manually pulled from the outside to the inside of the opening of the mounting housing 40 under the pre-pressure, the limiting rod 46 is vertically placed along the axis of the telescopic outer sleeve 28, and the sliding of the telescopic inner rod 30 is not affected.
The limiting wheels 14 are fixedly mounted on the corresponding fixing plates 1 in a welding manner.
The supporting wheel 6 is mounted on the bracket base 4 through a bearing.
The specific working process is as follows: when the rear wheel bracket designed by the invention is used, in normal use, the rotation of the swinging shaft 16 is limited by the locking mechanism 13 and is in a relatively static state with the corresponding fixed plate 1, namely the winding wheel 26 arranged on the swinging shaft 16 is static with respect to the fixed plate 1, when the electric vehicle is parked and the rear wheel bracket is erected, the two adjusting frame rods 3 are pulled to make the two adjusting frame rods 3 swing with respect to the corresponding two swinging shafts 16, because the winding wheels 26 are relatively static, in the swinging process of the two adjusting frame rods 3, the two second pull ropes 41 on the two sides are gradually wound on the corresponding two winding wheels 26, the two second pull ropes 41 on the two sides slide with respect to the telescopic outer sleeve 28 on the corresponding side, the sliding blocks 27 on the corresponding side are pulled to slide towards the corresponding winding wheel 26 side along the first mounting sliding grooves 35 opened on the corresponding telescopic outer sleeve 28 by the sliding of the second pull ropes 41, the sliding block 27 slides to drive the fixed pulley 44 mounted on the sliding block to slide, the fixed pulley 44 slides to pull the corresponding first pull rope 31, so that the first pull rope 31 pulls the corresponding telescopic inner rod 30 to slide, namely the telescopic inner rod 30 slides towards the inner side of the telescopic outer sleeve 28, the overall length of the adjusting frame rod 3 is shortened, the height of a rear wheel of the electric vehicle required to be lifted after the rear wheel support is supported is reduced, and the labor force of a user during parking is reduced.
When the rear wheel of the electric bicycle needs to be maintained, the rear wheel needs to be supported through a rear wheel bracket, and at the moment, in order to ensure the space during maintenance, when the rear wheel bracket is supported, two adjusting frame rods 3 cannot be shortened, under the state, the rear wheel bracket designed by the invention firstly pushes an adjusting block 17 manually to enable the adjusting block 17 to push a limiting slide block 18 to slide before the rear wheel is lifted, so that the limiting slide block 18 completely slides into an installation sliding groove 19 formed in a swinging shaft 16, the limiting slide block 18 relieves the limitation on the swinging shaft 16, and simultaneously one end of a limiting rod 46 positioned at the opening of an installation shell 40 is pulled manually, so that the other end of the limiting rod 46 is just clamped on the end surface of a telescopic inner rod 30 at the corresponding side to limit the sliding of the telescopic inner rod 30 into a telescopic outer sleeve 28; swing two regulation hack levers 3 this moment, two oscillating axles 16 will swing along with regulation hack lever 3 under the transmission of second stay cord 41 and winding wheel 26, winding wheel 26 can not twine second stay cord 41, flexible interior pole 30 also can not receive ascending pulling force and slide to flexible overcoat 28, prop up the back with the rear wheel, loosen gag lever post 46, gag lever post 46 and the flexible interior pole 30 that corresponds will tightly compress tightly under the action of gravity of automobile body, can not break away from, flexible interior pole 30 can not be extrudeed by ground and slide relative flexible overcoat 28 promptly, the rear wheel support can keep original length, can not influence the maintenance space after propping up.
Claims (10)
1. A rear wheel bracket of an electric vehicle comprises fixed plates, pedal locking plates, an adjusting frame rod, a bracket base, a first spring and a second spring, wherein the lower ends of the fixed plates are provided with arc-shaped sliding grooves, one side of each fixed plate is fixedly provided with a support lug, and the two fixed plates are fixedly arranged on a vehicle frame through bolts; the two adjusting frame rods are symmetrically arranged on the two fixing plates in a swinging mode, and the lower ends of the two adjusting frame rods are fixedly connected through the bracket base; a sliding shaft is fixedly arranged on each of the two adjusting frame rods, and a first fixing plate is arranged at one end of each sliding shaft, which is far away from each adjusting frame rod; the two sliding shafts are respectively in one-to-one corresponding sliding fit with the two sliding grooves formed on the two fixing plates; one side of one of the two adjusting frame rods is provided with an installation hook, a first spring is arranged between the installation hook and a support lug installed on the corresponding fixing plate, and the swinging point of the adjusting frame rod is positioned between the corresponding support lug and the installation hook; a pedal locking plate is arranged on the other regulating frame rod in the two regulating frame rods in a swinging mode, a second spring is arranged between the pedal locking plate and a support lug arranged on the corresponding fixing plate, and the swinging point of the pedal locking plate is located between the corresponding support lug and the connecting point of the pedal locking plate and the second spring; the method is characterized in that: adjusting threaded sleeves are arranged between the two adjusting frame rods and the frame rod base, and the adjusting threaded sleeves are rotated to drive the two adjusting frame rods to extend and shorten the distance between the two adjusting frame rods and the frame rod base through threaded matching; the two adjusting frame rods are both of telescopic structures;
the adjusting rack rod comprises a winding wheel, a sliding block, a telescopic outer sleeve, a fourth spring, a telescopic inner rod, a first pull rope, a limiting mechanism, a second pull rope, an installation rotating shaft, a fixed pulley, a first volute spring and a lock mechanism, wherein one end of the telescopic outer sleeve is provided with a second fixed plate, one end, far away from the telescopic outer sleeve, of the second fixed plate is provided with an installation groove, one end, close to the second fixed plate, of the inner side of the telescopic outer sleeve is provided with a first installation sliding groove, the other end of the telescopic outer sleeve is provided with a second installation sliding groove, and the inner circular surface of the second installation sliding; the second fixing plate is arranged on the corresponding fixing plate through a swinging shaft, one end of the telescopic inner rod is arranged in the second mounting chute in a sliding manner and is positioned on one side of the limiting ring away from the first mounting chute, and the telescopic inner rod is matched with the limiting ring; a fourth spring is arranged between the telescopic inner rod and the inner end face of the second mounting chute; the sliding block is slidably arranged in the first installation chute, a fixed pulley is arranged on the sliding block through an installation rotating shaft, and a first scroll spring is arranged between the installation rotating shaft and the first installation chute; one end of a first pull rope is fixedly arranged on the end face of one side of the first mounting chute, which is close to the second mounting chute, and the other end of the first pull rope extends into the second mounting chute through a fixed pulley and is fixedly connected with the telescopic inner rod; the winding wheel is fixedly arranged on the oscillating shaft and positioned in the mounting groove, a second pull rope is wound on the winding wheel, and one end of the second pull rope extends into the first mounting chute and is fixedly connected with the sliding block; a lock mechanism is arranged between the swing shaft and the corresponding fixed plate, and a limit mechanism is arranged on the telescopic outer sleeve;
the outer circular surface of one end of the swinging shaft is provided with an installation chute; the outer circular surface of one end of the telescopic outer sleeve, which is provided with a second mounting chute, is provided with a mounting shell, the mounting shell is provided with an opening, and the mounting shell is communicated with the second mounting chute;
the locking mechanism comprises a limiting wheel, an adjusting block, a limiting sliding block and a third spring, wherein a limiting hole is formed in the outer circular surface of the limiting wheel, the limiting wheel is fixedly arranged on the fixing plate on one corresponding side, the limiting sliding block is slidably arranged in an installation sliding groove formed in the oscillating shaft and a limiting hole formed in the limiting wheel, and the third spring is arranged between one end, located in the installation sliding groove, of the limiting sliding block and the inner end surface of the installation sliding groove; the adjusting block is slidably arranged in a limiting hole formed in the limiting wheel;
the limiting mechanism comprises a limiting rod, a second volute spring and a swing shaft, wherein the limiting rod is installed in the installation shell through swing of the swing shaft, one end of the limiting rod is located at the opening of the installation shell, the second volute spring is installed between the swing shaft and the installation shell, and the limiting rod is matched with the telescopic inner rod.
2. The electric vehicle rear wheel support of claim 1, characterized in that: the supporting base is provided with a supporting wheel, and after the rear wheel of the electric vehicle is supported, the supporting wheel is in contact with the ground and is in contact with the rear wheel of the electric vehicle.
3. The electric vehicle rear wheel support of claim 1, characterized in that: the two ends of the adjusting threaded sleeve are respectively provided with a plurality of clamping arc plates which are uniformly distributed, the outer circular surfaces of the clamping arc plates are conical, the inner circular surface of the adjusting threaded sleeve is provided with internal threads, and the outer circular surface of the adjusting threaded sleeve is provided with external threads; external threads are arranged on the outer circular surfaces of the upper ends of the two sides of the telescopic inner rod and the support base respectively, and the adjusting threaded sleeve is installed between the telescopic inner rod and the support base through the thread matching of the internal threads and the external threads; the internal circular surface of the tightening thread sleeve is provided with an internal thread, the two tightening thread sleeves are arranged at two ends of the adjusting thread sleeve through thread fit, and the two tightening thread sleeves are in extrusion fit with the clamping arc plates at the two ends.
4. The electric vehicle rear wheel support of claim 1, characterized in that: the fixed plate is provided with a shaft hole for the swinging shaft to pass through, and a bearing is arranged between the swinging shaft and the shaft hole.
5. The electric vehicle rear wheel support of claim 1, characterized in that: one side of the mounting shell is provided with a mounting circular groove, one end of the mounting rotating shaft is rotatably mounted in the mounting circular groove, the inner end of the first volute spring is fixedly mounted on the mounting rotating shaft, and the outer end of the first volute spring is fixedly mounted on the circular surface of the mounting circular groove; the first scroll spring has pre-pressure, and under the pre-pressure, when the sliding block is not pulled, the sliding block is contacted with the end face of one side of the first mounting sliding groove, which is close to the second mounting sliding groove.
6. The electric vehicle rear wheel support of claim 1, characterized in that: one side of the first installation sliding groove formed in the telescopic outer sleeve is provided with a guide sliding groove, one side of the guide sliding groove is provided with a rope hole communicated with the outside, an installation sliding block is fixedly installed on the sliding block, the installation sliding block is in sliding fit with the guide sliding groove, and one end of the second pull rope penetrates through the rope hole and is fixedly connected with the installation sliding block.
7. The electric vehicle rear wheel support of claim 1, characterized in that: the fourth spring is a compression spring and has pre-pressure.
8. The electric vehicle rear wheel support of claim 1, characterized in that: the second volute spring has pre-pressure, and under the pressure, when the limiting rod is not manually pulled from the outside to the inside of the opening of the mounting shell, the limiting rod is vertically placed along the axis of the telescopic outer sleeve, and the sliding of the telescopic inner rod cannot be influenced.
9. The electric vehicle rear wheel support of claim 1, characterized in that: the limiting wheels are fixedly arranged on the corresponding fixing plates in a welding mode.
10. The electric vehicle rear wheel support of claim 1, characterized in that: the supporting wheel is arranged on the bracket base through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346650.3A CN112356948A (en) | 2020-11-26 | 2020-11-26 | Rear wheel bracket of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346650.3A CN112356948A (en) | 2020-11-26 | 2020-11-26 | Rear wheel bracket of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112356948A true CN112356948A (en) | 2021-02-12 |
Family
ID=74533669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011346650.3A Withdrawn CN112356948A (en) | 2020-11-26 | 2020-11-26 | Rear wheel bracket of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112356948A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115339561A (en) * | 2022-08-10 | 2022-11-15 | 重庆鹏田车业有限公司 | Domestic light tricycle |
-
2020
- 2020-11-26 CN CN202011346650.3A patent/CN112356948A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115339561A (en) * | 2022-08-10 | 2022-11-15 | 重庆鹏田车业有限公司 | Domestic light tricycle |
| CN115339561B (en) * | 2022-08-10 | 2023-10-24 | 重庆鹏田车业有限公司 | Household portable tricycle |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210212 |
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| WW01 | Invention patent application withdrawn after publication |