CN2677252Y - Electric traction engine head - Google Patents
Electric traction engine head Download PDFInfo
- Publication number
- CN2677252Y CN2677252Y CN 200420014586 CN200420014586U CN2677252Y CN 2677252 Y CN2677252 Y CN 2677252Y CN 200420014586 CN200420014586 CN 200420014586 CN 200420014586 U CN200420014586 U CN 200420014586U CN 2677252 Y CN2677252 Y CN 2677252Y
- Authority
- CN
- China
- Prior art keywords
- motor
- casing
- electric traction
- brake
- worm gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Automatic Cycles, And Cycles In General (AREA)
Abstract
The utility model relates to an electric traction engine head used for the vehicles of walk-substituting vehicles, wheelchairs, scenic overlook vehicles, etc. The electric traction engine head comprises a control system, a speed reducing difference driving system, an engine rack, and a power supply box. The control system comprises a steering mechanism and a control mechanism. The speed reducing difference driving system is composed of a motor, a worm gear and worm rod speed reducing mechanism, a speed difference mechanism, and two driving wheels. The control system and the speed reducing difference driving system are arranged on the engine rack. Batteries in the power supply box are connected with the control mechanism by power supply cords, and are further connected with the motor by motor cables. Due to the fact that the technical project is adopted, and especially, the speed reducing difference driving system is adopted, and the utility model has the advantage of simple structure, wide adaptability, convenient use, safety, and reliability.
Description
Technical field
The utility model relates to a kind of traction head, particularly relates to the electric traction head that vehicles such as a kind of car of riding instead of walk, wheel Wheel-chair, view car use.
Background technology
Along with the improvement and the requirement on environmental protection of people's lives, various battery-driven cars emerge in an endless stream, progressively by the walking-replacing tool of people as various different purposes; Existing battery-driven car has full size vehiclees such as electronlmobil, electric power train, also the daily vehicle such as Electrical Bicycle is arranged, and the elderly's low speed special cars such as car, wheel Wheel-chair, view car of riding instead of walk; Because above-mentioned low speed special car uses the less and dispersion of colony, cost of development is bigger respectively, special electric traction head, and required input and scientific and technological content are higher, and development difficulty is bigger; Therefore, can develop a kind of universal extrusion tooling that is fit to above-mentioned special car, to reducing cost of development, accelerate the exploitation of Related product, be convenient for people to, particularly the elderly's work, life have positive effect.
The utility model content
The purpose of this utility model is to provide a kind of electric traction head, this electric traction head can be used for the elderly ride instead of walk car, low speed special cars such as wheel Wheel-chair, view car, to reduce the cost of development of Related product, improve people, particularly the elderly's quality of life.
The utility model is achieved in that a kind of electric traction head, comprises maneuvering system, subtracts, the differential drive system frame 35 and power supply box 17; Described maneuvering system comprises steering hardware and control mechanism, describedly subtract, the differential drive system is by motor 11, worm gear 3, worm screw 10 speed reduction gearings, box of tricks, two drive wheels 29 are formed, described maneuvering system and subtract, the differential drive system is installed on the frame 35, the battery in the power supply box 17 is connected with control mechanism by power lead, is connected with motor 11 by motor cable 28 again.
Described subtracting, in the differential drive system, motor is connected with worm screw 10 in the speed reduction gearing by drive coupling 13, worm screw 10 by bearing installation on casing, worm screw 10 is connected with a joggle with turbine 3, described worm gear 3 is hollow worm gear, two finishing bevel gear cuters 14 in the box of tricks are installed in the middle of the worm gear 3 by bearing pin 7, described finishing bevel gear cuter 14 respectively can rotate around bearing pin 7, output shaft in the described box of tricks is made of left half axle 15 and right axle shaft 6, left half axle 15 and right axle shaft 6 respectively is fixed with one near an end of worm gears 3 and is complementary and meshed bevel gears 14 with the finishing bevel gear cuter 14 that is installed in the worm gear 3, the axial line of two pairs of finishing bevel gear cuters 14 is orthogonal, described output shaft is installed on the casing left side by bearing seat 4 and the bearing 5 that is fixed on the casing, the right axle shaft mouth respectively is installed with drive wheel 29.
Described casing is made of symmetrical left casing 1 and right casing 2, and left and right casing fuses by bolt, and described motor is by the mounting hole on the casing and being bolted on the casing, and described motor 11 has power-off brake device 45.
Between the end face of described casing inboard and worm gear 3, packing ring 16 is installed respectively, the one side of each packing ring is fixed on the casing, an end face bearing fit of another side and worm gear 3.
Described steering hardware comprises steering handle 25 or steering handwheel 40, turn to column 26 and adaptor union 30, described steering handle 25 or steering handwheel 40 are installed in and turn to the column upper end, turn to column lower end and frame hinged and can be forward or keep flat to the left or to the right to horizontal line closely, described adaptor union 30 is installed on the frame 35 and can relatively rotates with trailed vehicle body, springing 34 is equipped with in the lower end of adaptor union, makes adaptor union 30 can do left and right correction or swing.
Described control mechanism comprises the instrument carrier panel 20 that is installed on steering handle 25 or the steering handwheel 40, the control circuit board that advances, retreats switch 18, governor 19, actuating lever 22 and be installed on the power supply box 17 constitutes, connect by control cable 27 between each parts of control mechanism, described control mechanism can carry out infinite speed variation to motor 11.
Described electric traction head is installed on the drawbar frame 31 that is complementary with the manual pulley Wheel-chair, and it is in conjunction with then becoming an electric wheelchair car, and described drawbar frame is provided with the supply bay of laying power supply box 17.
Described electric traction frame head apparatus has brake system, described brake system, BK Brake Switch 23 is housed, energy automatic cut-off motor power supply during brake, described brake system, can be mechanical brake system or electromagnetic brake system, the brake assemblies 38 in the described brake system can be installed on the drive wheel 29 or be installed on the trailed follower 39.
Working process of the present utility model is as follows: motor is not in braking mode when the brake equipment on the motor 11 45 has energized; Advance when travelling: will advance, retreat switch 18 and turn on the D Drive; Craspedodrome is travelled: steering handle 26 or steering handwheel 40 are on the direction of craspedodrome; When turnon left travels, anti-clockwise rotation handle 26 or steering handwheel 40, angle is big more during rotation, and the radius of turning is just more little; When right-hand corner travels, twist the handle to the right 26 or steering handwheel, the angle of rotation is big more, and the radius of turning is just more little; Motor 11 power connections are removed the braking of dynamic braking device 45 simultaneously when pressing actuating lever 22, and start-up control mechanism output large-current electric is pressed, the running of drive motor 11 forwards; Retreat when travelling, will advance, retreat switch 18 and turn on and retreat on the shelves, press actuating lever 22, control control mechanism output large-current electric is pressed drive motor 11 antiports; Hurry up, go slowly and sail: during with governor 19 right-hand revolutions, the control mechanism horsepower output strengthens, and motor 11 operating speves are accelerated, and when governor 19 anticlockwise directions rotated, motor 11 operating speves were slack-off; Slowing-down brake: in the process of moving, when holding brake crank 21 with a firm grip, BK Brake Switch 23 is opened, control mechanism stops to motor 11 power supplies, simultaneously brake cable 24 is braked wheel by brake assemblies, thereby car is decelerated to be stopped, brake assemblies can be installed in drive wheel, also can be installed in follower 39, when the brake crank 21 of holding with a firm grip is opened BK Brake Switch 23, dynamic braking device 45 is braked simultaneously, when making brake, produces the braking effect of dynamic braking device braking 45 and wheel brake while and usefulness; During parking: make that to advance, retreat switch 18 in the closed position, the car power supply is cut off, and this moment, dynamic braking device was in the state of braking; Subtracting in the described electric traction head, differential drive system working process are as follows: power drives worm screws 10 rotations by drive coupling 13 and is passed to worm gear 3 when motor 11 runnings, thereby finishing bevel gear cuter 14 on the worm gear 3 is passed to left half axle 15 by being installed in finishing bevel gear cuter on left half axle 15, the right axle shaft 6, right axle shaft 6 outputs power by being installed in again; The resistance of the resistance ratios right axle shaft 6 of left half axle 15 is big during left-hand rotation, and the power of motor 11 outputs mainly is passed to right axle shaft 6 by finishing bevel gear cuter 14, makes right axle shaft 6 revolution ratio left half axles 15 fast, thereby forms differential; Run into resistance than left half axle 15 when big when the resistance of right axle shaft 6 during right-hand rotation, the power of motor 11 outputs mainly is passed to left half axle 15 by finishing bevel gear cuter 14, makes left half axle 15 revolution ratio right axle shafts 6 fast, thereby forms differential.
The beneficial effects of the utility model are: owing to adopted technique scheme, adopted particularly that motor subtracts, the differential drive system, made to the utlity model has simple in structure, wide adaptability, easy to use, safe and reliable beneficial effect.
Description of drawings
Be described in further detail this use is novel below in conjunction with drawings and Examples:
Fig. 1 is one of the utility model embodiment 1 structural representation.
Fig. 2 is two of the utility model embodiment 1 structural representation.
Fig. 3 is that the utility model embodiment 1 subtracts, one of differential driving system structure scheme drawing.
Fig. 4 is two of the utility model embodiment 1 structural representation.
Fig. 5 is one of the utility model embodiment 1 rack construction scheme drawing.
Fig. 6 is two of the utility model embodiment 1 rack construction scheme drawing
Fig. 7 is the utility model embodiment 1 drawbar frame structural representation.
Fig. 8 is one of the utility model embodiment 1 an application example scheme drawing.
Fig. 9 is two scheme drawings of the utility model embodiment 1 application example.
Figure 10 is three scheme drawings of the utility model embodiment 1 application example.
Figure 11 is the utility model embodiment 2 steering handwheel structural representations.
Among the figure, 1, left casing; 2, right casing; 3, worm gear; 4, bearing seat; 5, bearing; 6, right axle shaft; 7, bearing pin; 8, worm gear platen; 9, seat; 10, worm screw; 11, motor; 13, drive coupling; 14, finishing bevel gear cuter; 15, left half axle; 16, packing ring; 17, power supply box; 18, advance, retreat switch; 19, governor; 20, instrument carrier panel; 21, brake crank; 22, actuating lever; 23, BK Brake Switch; 24, brake cable; 25, steering handle; 26, turn to column; 27, control cable; 28, motor cable; 29, drive wheel; 30, adaptor union; 31, drawbar frame; 33, wheelchair track adjusting wheel; 34, springing; 35, frame; 36, wheel Wheel-chair wheel; 37, wheelchair driver push boat; 38, brake assemblies; 39, follower; 40, steering handwheel; 41, vehicle frame; 45, dynamic braking device;
The specific embodiment
Embodiment 1: referring to figs. 1 through Figure 10, in the utility model embodiment 1, described electric traction head comprises maneuvering system, subtracts, the differential drive system frame 35 and power supply box 17; Described maneuvering system comprises steering hardware and control mechanism, describedly subtract, the differential drive system is by motor 11, worm gear 3, worm screw 10 speed reduction gearings, box of tricks, two drive wheels 29 are formed, described maneuvering system and subtract, the differential drive system is installed on the frame, the battery in the power supply box is connected with control mechanism by power lead, is connected with motor 11 by motor cable 28 again.
Described subtracting, in the differential drive system, motor is connected with worm screw 10 in the speed reduction gearing by drive coupling 13, worm screw 10 by bearing installation on casing, the Shockproof rubber circle is housed on the bearing to be prevented to shake excessive, worm screw 10 is connected with a joggle with turbine 3, described worm gear 3 is hollow worm gear, two finishing bevel gear cuters 14 in the box of tricks are installed in the middle of the worm gear 3 by bearing pin 7, by worm gear platen 8 location, described finishing bevel gear cuter 14 respectively can rotate around bearing pin 7, output shaft in the described box of tricks is made of left half axle 15 and right axle shaft 6, left half axle 15 and right axle shaft 6 respectively is fixed with one near an end of worm gears 3 and is complementary and meshed bevel gears 14 with the finishing bevel gear cuter 14 that is installed on the worm gear 3, the axial line of two pairs of finishing bevel gear cuters 14 is orthogonal, described output shaft is installed on the casing left side by four bearing seats 4 and the bearing 5 that is fixed on the casing, the right axle shaft mouth respectively is installed with drive wheel 29; Described casing is made of symmetrical left casing 1 and right casing 2, and left and right casing connects or one by bolt, and described motor is by the mounting hole on the casing and be bolted on the casing, and described motor 11 has the power-off brake device; Between the end face of described casing inboard and worm gear 3, packing ring 16 is installed respectively, the one side of each packing ring is fixed on the casing, an end face bearing fit of another side and worm gear 3.
Described steering hardware comprises steering handle, turn to column 26 and adaptor union 30, described steering handle 25 is installed in and turns to the column upper end, turn to column lower end and frame 35 hinged and can be forward or keep flat to the left or to the right to horizontal line closely, described adaptor union 30 is installed on the frame and can relatively rotates with trailed vehicle body, springing 34 is equipped with in the lower end of adaptor union 30, and what springing adopted in the present embodiment is the rubber shock resistance block, makes adaptor union 30 can do left and right correction or swing.
Described control mechanism comprises the instrument carrier panel 20 that is installed on the steering handle 25, the control circuit board that advances, retreats switch 18, governor 19, actuating lever 22 and be installed on the power supply box 17 constitutes, connect by control cable 27 between each parts of control mechanism, described control mechanism can carry out infinite speed variation to motor.
Described electric traction head is installed in the traction that is complementary with the manual pulley Wheel-chair, and it is in conjunction with then becoming an electric wheelchair car, and described drawbar frame 31 is provided with the supply bay of laying power supply box 17.
Described electric traction frame head apparatus has brake system, described brake system, BK Brake Switch 23 is housed, energy automatic cut-off motor power supply during brake, described brake system, can be mechanical brake system or electromagnetic brake system, the brake assemblies 38 in the described brake system can be installed on the drive wheel 29 or be installed on the trailed follower 39.
The working process of the utility model embodiment 1 is as follows: motor is not in braking mode when the brake equipment on the motor 11 45 has energized; Advance when travelling: will advance, retreat switch 18 and turn on the D Drive; Craspedodrome is travelled: steering handle 26 is on the direction of craspedodrome; When turnon left travels, anti-clockwise rotation handle 26, angle is big more during rotation, and the radius of turning is just more little; When right-hand corner travels, twist the handle to the right 26, the angle of rotation is big more, and the radius of turning is just more little; Motor power is connected when pressing actuating lever 22, removes the braking of dynamic braking device 45 simultaneously, and start-up control mechanism output large-current electric is pressed, the running of drive motor 11 forwards; Retreat when travelling, will advance, retreat switch 18 and turn on and retreat on the shelves, press actuating lever 22, control control mechanism output large-current electric is pressed drive motor 11 antiports; Hurry up, go slowly and sail: during with governor 19 right-hand revolutions, the control mechanism horsepower output strengthens, and motor 11 operating speves are accelerated, and when governor 19 anticlockwise directions rotated, motor 11 operating speves were slack-off; Slowing-down brake: in the process of moving, when holding brake crank 21 with a firm grip, BK Brake Switch 23 is opened, control mechanism stops to motor 11 power supplies, simultaneously brake cable 24 is braked wheel by brake assemblies, thereby car is decelerated to be stopped, brake assemblies 38 can be installed in drive wheel, also can be installed in follower, when the brake crank 21 of holding with a firm grip is opened BK Brake Switch 23, dynamic braking device 45 is braked simultaneously, when making brake, produces the braking effect of dynamic braking device 45 brakings and wheel brake while and usefulness; During parking: make that to advance, retreat switch 18 in the closed position, the car power supply is cut off, and this moment, dynamic braking device was in the state of braking; Subtracting in the described electric traction head, differential drive system working process are as follows: power drives worm screws 10 rotations by drive coupling 13 and is passed to worm gear 3 when motor 11 runnings, thereby finishing bevel gear cuter 14 on the worm gear 3 is passed to left half axle 15 by being installed in finishing bevel gear cuter 14 on left half axle 15, the right axle shaft 6, right axle shaft 6 outputs power by being installed in again; The resistance of the resistance ratios right axle shaft 6 of left half axle 15 is big during left-hand rotation, and the power of motor 11 outputs mainly is passed to right axle shaft 6 by finishing bevel gear cuter 14, makes right axle shaft 6 revolution ratio left half axles 15 fast, thereby forms differential; Run into resistance than left half axle 15 when big when the resistance of right axle shaft 6 during right-hand rotation, the power of motor 11 outputs mainly is passed to left half axle 15 by finishing bevel gear cuter 14, makes left half axle 15 revolution ratio right axle shafts 6 fast, thereby forms differential.
Fig. 8 is the structural representation of one of the utility model embodiment 1 described electric traction head application example, in one of application example, the utility model and common hand propelled wheel Wheel-chair are used, do not changing common Wheel-chair wheel 36, the hand-pushing wheel 37 of taking turns,, track adjusting wheel 33 situation under, install drawbar frame 31 and the utility model embodiment 1 described electric traction head additional, then constitute electronic, a dual-use manual wheel Wheel-chair.
Fig. 9 and Figure 10 be the utility model embodiment 1 application example two, three structural representation.Application example two, three in, the utility model embodiment 1 adds the vehicle body that is made of different seat 9, follower 39, vehicle frame 41 etc., then can form different the elderlys ride instead of walk car or view car, described application example two, three in, the brake assemblies of narrating among the utility model embodiment 1 38 can be installed on 39 groups of the followers.
Embodiment 2, as shown in figure 11, in the utility model embodiment 2, the steering handle 25 that replaces among the embodiment 1 with steering handwheel 40 in the steering hardware, all the other conditions and application are with embodiment 1.
Claims (9)
1. an electric traction head comprises maneuvering system, subtracts, the differential drive system frame (35) and power supply box (17); It is characterized in that: described maneuvering system comprises steering hardware and control mechanism, describedly subtract, the differential drive system is by motor (11), worm gear (3), worm screw (10) speed reduction gearing, box of tricks and two drive wheels (29) are formed, described maneuvering system and subtract, the differential drive system is installed on the frame (35), battery in the power supply box (17) is connected with control mechanism by power lead, is connected with motor (11) by motor cable (28) again.
2. electric traction head according to claim 1, it is characterized in that: described subtracting, in the differential drive system, motor is connected with worm screw (10) in the speed reduction gearing by drive coupling (13), worm screw (10) by bearing installation on casing, worm screw (10) is connected with a joggle with turbine (3), described worm gear (3) is hollow worm gear, two finishing bevel gear cuters (14) in the box of tricks are installed in the middle of the worm gear (3) by bearing pin (7), each can rotate described finishing bevel gear cuter (14) around bearing pin (7), output shaft in the described box of tricks is made of left half axle and right axle shaft, left half axle (15) and right axle shaft (6) respectively are fixed with one near an end of worm gear (3) and are complementary and meshed bevel gears (14) with the finishing bevel gear cuter that is installed in worm gear (3) (14), the axial line of two pairs of finishing bevel gear cuters (14) is orthogonal, described output shaft is installed on the casing left side by the bearing (5) that is fixed on the casing, the right axle shaft mouth respectively is installed with drive wheel (29).
3. according to the electric traction head of claim 1 or 2 described mistakes, it is characterized in that: described casing is made of symmetrical left casing (1) and right casing (2), left and right casing fuses by bolt, described motor is by the mounting hole on the casing and being bolted on the casing, and described motor (11) has power-off brake device (45).
4. according to the described electric traction head of claim 2, it is characterized in that: between the end face of described casing inboard and worm gear (3), packing ring (16) is installed respectively, the one side of each packing ring is fixed on the casing, an end face bearing fit of another side and worm gear (3).
5. electric traction head according to claim 1, it is characterized in that: described steering hardware comprises steering handle (25) or steering handwheel, turn to column (26) and adaptor union (30), described steering handle (25) or steering-wheel placing are turning to the column upper end, turn to column lower end and frame (35) hinged and can be forward or keep flat to the left or to the right to horizontal line closely, the frame (35) that is installed in described adaptor union (30) goes up and can relatively rotate with trailed vehicle body, springing (34) is equipped with in the lower end of adaptor union (30), makes adaptor union (30) can do a left side, the right correction or swing.
6. electric traction head according to claim 1, it is characterized in that: described control mechanism comprises the instrument carrier panel (20) that is installed on steering handle (25) or the steering handwheel (40), the control circuit board that advances, retreats switch (18), governor (19), actuating lever (22) and be installed on the power supply box (17) constitutes, and connects by control cable (27) between each parts of control mechanism.
7. electric traction head according to claim 1, it is characterized in that: described electric traction head is installed on the drawbar frame (31) that is complementary with the manual pulley Wheel-chair, it is in conjunction with then becoming an electric wheelchair car, and described drawbar frame (31) is provided with the supply bay of laying power supply box (17).
8. electric traction head according to claim 1, it is characterized in that: described electric traction frame head apparatus has brake system, described brake system, device has BK Brake Switch (23), energy automatic cut-off motor power supply during brake, described brake system can be mechanical brake system or electromagnetic brake system, and the brake assemblies in the described brake system (38) can be installed in drive wheel (29) and go up or be installed on the trailed follower (39).
9. electric traction head according to claim 1 is characterized in that: described control mechanism can carry out infinite speed variation to motor (11).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420014586 CN2677252Y (en) | 2004-01-12 | 2004-01-12 | Electric traction engine head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420014586 CN2677252Y (en) | 2004-01-12 | 2004-01-12 | Electric traction engine head |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2677252Y true CN2677252Y (en) | 2005-02-09 |
Family
ID=34582889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200420014586 Expired - Fee Related CN2677252Y (en) | 2004-01-12 | 2004-01-12 | Electric traction engine head |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2677252Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102530110A (en) * | 2012-03-12 | 2012-07-04 | 山东奚仲电子科技有限公司 | Self-powdered electric traction trailer |
CN105398500A (en) * | 2015-11-27 | 2016-03-16 | 苏州先锋物流装备科技有限公司 | Sitting tractor |
CN107336596A (en) * | 2016-04-28 | 2017-11-10 | 水星动力(北京)科技有限公司 | Vidacare corp |
-
2004
- 2004-01-12 CN CN 200420014586 patent/CN2677252Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102530110A (en) * | 2012-03-12 | 2012-07-04 | 山东奚仲电子科技有限公司 | Self-powdered electric traction trailer |
CN105398500A (en) * | 2015-11-27 | 2016-03-16 | 苏州先锋物流装备科技有限公司 | Sitting tractor |
CN107336596A (en) * | 2016-04-28 | 2017-11-10 | 水星动力(北京)科技有限公司 | Vidacare corp |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN200942835Y (en) | Foldable electric boosting vehicle | |
CN200942160Y (en) | Electric wheel-chair vehicle | |
CN2541230Y (en) | Parallel arranged driver of electric vehicle | |
CN204876697U (en) | Domestic stereo garage | |
CN2677252Y (en) | Electric traction engine head | |
CN201633712U (en) | Unmanned vehicle brake | |
CN201512060U (en) | Electrically power-assisted vehicle | |
CN2413938Y (en) | Flying car | |
CN2685190Y (en) | Integral circulating ball type electric steering device | |
CN2299809Y (en) | Propeller having direction control function | |
CN2753613Y (en) | Electric vehicle dual-motor driving device | |
CN202295198U (en) | Motor-driven lithium battery power-assisted tricycle | |
CN2725078Y (en) | Bipower differential driving device | |
CN2728824Y (en) | Electric motor booster head | |
CN216232817U (en) | Speed control device for electric scooter | |
CN206255060U (en) | A kind of gear drive turned to for electrically propelled traction vehicle | |
CN201042998Y (en) | Four-wheel electric bicycle | |
NL2026085B1 (en) | The electric steering drive for hybrid cars | |
CN2488794Y (en) | Easy-to-carry electric bicycle driven by rear wheel | |
CN220374296U (en) | Four-wheel drive system for realizing vehicle transverse travel and in-situ turning | |
CN207496877U (en) | Pincers like brake formula bicycle power-assisted device | |
CN201105794Y (en) | Bicycle or electric vehicle and anti-sliding brake apparatus thereof | |
CN210484544U (en) | Rear axle differential mechanism on motor tricycle | |
CN214875111U (en) | Wire control steering mechanism for electric wheel driven automobile | |
CN220096452U (en) | Steering control structure externally arranged on steering gear box |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |