CN211281262U - Multi-foot ladder climbing machine - Google Patents
Multi-foot ladder climbing machine Download PDFInfo
- Publication number
- CN211281262U CN211281262U CN201922458471.8U CN201922458471U CN211281262U CN 211281262 U CN211281262 U CN 211281262U CN 201922458471 U CN201922458471 U CN 201922458471U CN 211281262 U CN211281262 U CN 211281262U
- Authority
- CN
- China
- Prior art keywords
- frame
- climbing
- transmission gear
- gear
- row
- 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.)
- Active
Links
Images
Landscapes
- Handcart (AREA)
Abstract
The utility model discloses a polypody cat ladder machine, which comprises a frame, a housing, actuating mechanism, multi-level linkage landing leg, triangular wheel and power supply unit, casing demountable installation is in the frame, supply the people to take, multi-level linkage landing leg is installed in the anterior left and right sides of fuselage of frame and is covered and locate the casing, actuating mechanism and power supply unit all install in the frame, power supply unit electric connection actuating mechanism, actuating mechanism drives multi-level linkage landing leg through gear drive and goes ahead in turn, triangular wheel is installed on the left and right sides of fuselage rear portion of frame, the triangular wheel drives the roll through multi-level linkage landing leg. The utility model discloses preceding multi-level linkage landing leg that adopts five groups alternate motion is the motion of not intermittent type building of climbing, and the focus is low, efficient, and the cat ladder machine adopts the triangle wheel structure at the back, and stability is high, and triangle wheel cooperation universal wheel can be used to the vertical implementation and the turn of stair intermittent type platform, and machine controller control crawls, makes the user can independent use and realize steadily going upstairs and downstairs function.
Description
Technical Field
The utility model relates to an electronic stair climbing mechanism, concretely relates to polypody cat ladder machine.
Background
With the increasing aging of society, more and more products for helping the elderly, especially the elderly living alone, to maintain normal life come into play. With the increasing age, many old people have the problems of inconvenient movement of legs and feet and difficulty in going upstairs, and the conventional upstairs-going power assisting device is heavy in weight, high in price and difficult to meet the requirements of common families.
The single electric stair climbing machine (application number: 201820768444.3) is characterized in that a triangular follower wheel and a transmission connecting rod of a parallelogram structure are matched with four supporting legs, so that the stair climbing machine can carry people and objects to go up and down stairs safely and stably, is simple in structure, very convenient to use and completely capable of being operated by one person, has the problems of large alternate clearance and easy up-and-down shaking when a group of legs alternately support the ground, and is not stable enough when climbing stairs, and certain safety risks exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to above-mentioned prior art not enough, provide a polypod cat ladder machine, this polypod cat ladder machine adopts 5 rotatable legs of climbing of group to prop ground in turn, and the clearance is short, can realize steadily going upstairs, safe and reliable, and the electrodynamic drive is easy operation.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does: the utility model provides a polypody cat ladder machine, which comprises a frame, a machine housing, actuating mechanism, multi-level linkage landing leg, triangular wheel and power supply unit, casing demountable installation is in the frame, the confession people takes, multi-level linkage landing leg is installed in the anterior left and right sides of fuselage of frame and is covered and locate the casing, actuating mechanism and power supply unit all install in the frame, power supply unit electric connection actuating mechanism, actuating mechanism drives multi-level linkage landing leg through gear drive and goes ahead in turn, the triangular wheel is installed in the fuselage rear portion left and right sides of frame, the triangular wheel drives the roll through multi-level linkage landing leg.
Furthermore, the driving mechanism is a stepping motor, the stepping motor is installed in the middle of the rack through a motor support, an output shaft of the stepping motor is connected with the driving gear through a turbine box, and the driving gear is meshed with the driven gear.
Furthermore, the power supply device is a rechargeable battery pack, the power supply device is installed on a rack on the rear side of the turbine box, a square frame is vertically arranged at the rear end of the rack, the power supply device is limited at the front end of the square frame, and universal wheels are symmetrically installed on an upper cross rod of the square frame in a left-right mode.
Further, the front part of the upper plate surface of the casing is provided with a handle, and the rear part of the handle is provided with a cushion on the casing.
Furthermore, the multi-level linkage supporting legs are composed of 5 groups of rotatable climbing legs, each group of rotatable climbing legs is symmetrically distributed at the left side and the right side of the frame body, each rotatable climbing leg is uniformly distributed at intervals from front to back at the same side of the frame, the front rotatable climbing legs and the rear rotatable climbing legs are distributed at the inner layer and the outer layer, each rotatable climbing leg comprises a crank shaft and a supporting leg, the left side and the right side of the frame body are symmetrically provided with an upper row of outer bearing seats, a middle row of outer bearing seats and a lower row of outer bearing seats, bearings are arranged in the outer bearing seats, the upper row of crank shafts, the middle row of crank shafts and the lower row of crank shafts are correspondingly arranged on the upper row of outer bearing seats and the lower row of outer bearing seats through the bearings and are transversely arranged on the frame, the upper row of crank shafts and the lower row of crank shafts are long crank shafts penetrating through the, the driven gear is connected to an upper row of crankshafts of the outermost rotatable climbing legs through a flat key, the outermost rotatable climbing legs are driven to rotate synchronously through the upper row of crankshafts, and the outermost rotatable climbing legs drive the inner rotatable climbing legs to rotate in a linkage mode through the gear transmission mechanism.
Furthermore, the gear transmission mechanism comprises a main transmission gear and a slave transmission gear which are respectively arranged on an upper row crank shaft and a middle row crank shaft, the main transmission gear and the slave transmission gear are respectively arranged on the inner sides of the left side plate and the right side plate of the rack and on the middle row crank shaft, the upper row crank shaft and the middle row crank shaft are arranged in a staggered mode, adjacent main transmission gears are meshed with the slave transmission gears, the main transmission gear of the outermost rotatable climbing leg rotates synchronously along with the upper row crank shaft and is meshed with the slave transmission gears to drive the slave transmission gears to rotate reversely, the reversely rotating slave transmission gears drive the main transmission gears of the adjacent rotatable climbing legs to rotate positively through meshing transmission, and therefore the rotating directions.
Furthermore, the supporting legs are connected with the crank through short crank connecting rod shafts, deep groove ball bearings are arranged at the joints of the supporting legs and the crank, the rocking bars are connected with the rear portions of the supporting legs through the short crank connecting rod shafts, the deep groove ball bearings are arranged at the joints of the supporting legs and the crank, and the rocking bars are fixedly connected with the outer ends of the lower-row crank shafts.
Furthermore, the main transmission gear and the auxiliary transmission gear are respectively installed on an upper row of crank shafts and a middle row of crank shafts through gear positioning sleeves, needle roller bearings are installed at the ends, far away from the left side plate and the right side plate of the rack, of the gear positioning sleeves, the needle roller bearings are installed on an inner bearing seat, the middle row of crank shafts are short crank shafts, and the auxiliary transmission gears are installed on the short crank shafts and limited through the inner bearing seat.
Furthermore, the triangular wheels are installed on the left side and the right side of the rear portion of the rack through triangular wheel installation shafts and extend outwards to the outside of the machine shell, the machine shell is turned over, the universal wheels are in contact with the ground, and then the universal wheels are matched with the triangular wheels to be used for vertically pushing the stair intermittent platform.
Further, the machine shell is arranged outside the machine frame through a bolt and nut assembly detachable cover.
Further, the device also comprises a motor controller, wherein the motor controller drives the driving mechanism to start, stop, rotate forwards and backwards in a remote control or wire control mode.
The utility model discloses following beneficial effect has: the multi-foot ladder climbing machine provided by the utility model adopts a multi-foot pedal structure, the gravity center is low, five groups of multi-level linkage supporting legs which alternately move are arranged in front of the ladder climbing machine to do non-intermittent stair climbing movement, and the efficiency is high; the rear of the stair climbing machine adopts a triangular wheel structure, the stability is high, the triangular wheel is matched with a universal wheel and can be used for vertical pushing and turning of the stair intermittent platform, and a motor controller controls a driving mechanism to start, stop, move in a forward and reverse rotating mode and adjust the rotating speed, so that a user can use the stair climbing machine independently and realize the function of going upstairs and downstairs stably.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the interior of the housing of FIG. 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a partial schematic view of region A of FIG. 2;
FIG. 5 is a schematic view of the crank and leg of FIG. 4 partially connected;
FIG. 6 is a schematic structural view of the gear assembly of FIG. 2;
fig. 7 is a schematic view of the triangular wheel and universal wheel of fig. 2 partially connected to a support.
Wherein the reference numerals are: the device comprises a rack 1, a machine shell 2, a handle 2-1, a cushion 2-2, a driving mechanism 3, a triangular wheel 4, a power supply device 5, a turbine box 6, a driving gear 7, a driven gear 8, a crank shaft 9-1, a supporting leg 9-2, an outer bearing seat 9-3, a crank 9-4, a rocker 9-5, a main transmission gear 9-6, a driven transmission gear 9-7, a crank connecting rod short shaft 9-8, a deep groove ball bearing 9-9, a gear positioning sleeve 9-10, a needle bearing 9-11, an inner bearing seat 9-12, a universal wheel 10 and a triangular wheel mounting shaft 11.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
As shown in figures 1-7, a multi-foot ladder climbing machine comprises a frame 1, a machine shell 2, a driving mechanism 3, multi-layer linkage supporting legs, a triangular wheel 4 and a power supply device 5, wherein the machine shell 2 is detachably arranged on the frame 1 through a bolt and nut assembly, a handle 2-1 is arranged on the front portion of the upper plate surface of the machine shell 2, a cushion 2-2 is arranged on the machine shell 2 at the rear portion of the handle 2-1, the multi-layer linkage supporting legs are arranged on the left side and the right side of the front portion of the machine body of the frame 1 and are covered in the machine shell 2, the driving mechanism 3 and the power supply device 5 are both arranged on the frame 1, the driving mechanism 3 is a stepping motor, the stepping motor is arranged in the middle of the frame 1 through a motor support, an output shaft of the stepping motor is connected with the driving gear 7 through a turbine box 6, the driving gear 7 is meshed with a driven gear, the rotatable climbing legs are uniformly distributed at intervals from front to back on the same side of the rack 1 and are distributed at the inner layer and the outer layer, the rotatable climbing legs comprise crank shafts 9-1 and supporting legs 9-2, the left side and the right side of the body of the rack 1 are symmetrically provided with an upper row of outer bearing seats 9-3, a middle row of outer bearing seats 9-3 are internally provided with bearings, the upper row of crank shafts 9-1, the middle row of crank shafts and the lower row of crank shafts 9-1 are correspondingly arranged on the upper row of outer bearing seats 9-3, the upper row of crank shafts 9-1 and the lower row of crank shafts are transversely arranged on the rack 1 through the bearings, the upper row of crank shafts 9-1 and the lower row of crank shafts 9-1 are long crank shafts penetrating through the left side plate and the right side plate of the rack 1, the rear ends of the supporting legs 9-2 are arranged at the outer ends of the corresponding upper row of crank shafts 9-, the driven gear 8 is connected with an upper row crankshaft 9-1 of the outermost rotatable climbing leg through a flat key and drives the outermost rotatable climbing leg to synchronously rotate through the upper row crankshaft 9-1, the outermost rotatable climbing leg drives the inner rotatable climbing leg to rotate in a linkage manner through a gear transmission mechanism, the gear transmission mechanism comprises a main transmission gear 9-6 and a secondary transmission gear 9-7 which are respectively arranged on the upper row crankshaft 9-1 and the middle row crankshaft 9-1, the main transmission gear 9-6 and the secondary transmission gear 9-7 are respectively arranged on the inner sides of the left side plate and the right side plate of the frame 1 and on the middle row crankshaft 9-1, the upper row crankshaft 9-1 and the middle row crankshaft 9-1 are arranged in a staggered manner, the adjacent main transmission gear 9-6 is meshed with the secondary transmission gear 9-7, and the main transmission gear 9-6 of the outermost, the driven gears 9-7 which rotate reversely are in meshing transmission, the driven gears 9-7 which rotate reversely drive the main drive gears 9-6 of the adjacent rotatable climbing legs to rotate forward through meshing transmission, so that the rotating directions of the rotatable climbing legs are consistent, the power supply device 5 is a rechargeable battery pack and is electrically connected with the driving mechanism 3, the power supply device 5 is installed on a rack 1 on the rear side of the turbine box 6, a square frame is erected at the rear end of the rack 1, the power supply device 5 is limited at the front end of the square frame, universal wheels 10 are symmetrically installed on the upper cross bar of the square frame in the left-right direction, the triangular wheels 4 are installed on the left side and the right side of the rear part of the machine body of the rack 1 through triangular wheel installation shafts 11 and extend outwards to the outside of the machine shell 2, and the motor controller drives the driving mechanism.
As shown in figures 4 and 5, the supporting leg 9-2 is connected with the crank 9-4 through a crank connecting rod short shaft 9-8, a deep groove ball bearing 9-9 is adopted at the joint, the rocker 9-5 is connected with the rear part of the supporting leg 9-2 through the crank connecting rod short shaft 9-8, the deep groove ball bearing 9-9 is adopted at the joint, and the rocker 9-5 is fixedly connected with the outer end of the lower-row crank shaft 9-1.
As shown in FIG. 6, the main transmission gear 9-6 and the secondary transmission gear 9-7 are respectively installed on an upper row crankshaft 9-1 and a middle row crankshaft 9-1 through gear positioning sleeves 9-10, needle roller bearings 9-11 are installed at the ends, far away from the left side plate and the right side plate of the rack 1, of the gear positioning sleeves 9-10, the needle roller bearings 9-11 are installed on inner bearing seats 9-12 (the structure of the needle roller bearings 9-11 is not shown, the inner bearing seats 9-12 on the two upper rows of crankshafts 9-1 on the right side are not shown), the middle row crankshaft 9-1 is a short crankshaft, and the secondary transmission gear 9-7 is installed on the short crankshaft and limited through the.
In the process of climbing stairs, a person sits on the cushion 2-2, the handle 2-1 is held by hands, the motor controller controls the output shaft of the driving mechanism 3 to do reverse rotation movement, the driving mechanism 3 drives the driving gear 7 to do reverse rotation through the turbine box 6, the driving gear 7 is meshed with the driven gear 8 to drive the driven gear to rotate positively and drive the upper row of crank shafts 9-1 of the rotatable climbing legs at the outermost side to do positive rotation, the upper row of crank shafts 9-1 of the rotatable climbing legs at the outermost side drive the rotatable climbing legs at the inner side to do same-direction linkage rotation through the gear transmission mechanism, so that the multi-foot stair climbing machine does non-intermittent stair climbing movement through five groups of front multilayer linkage support legs which alternately move, has high efficiency, adopts a triangular wheel structure at the back of the stair climbing machine, has high stability and is safe and reliable, the machine shell 2 is overturned to lead the universal wheels 10, the motor controller controls the driving mechanism to start, stop, move in forward and reverse rotation and adjust the rotating speed, so that a user can use the motor controller independently and realize the function of going upstairs and downstairs stably.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (11)
1. The utility model provides a polypod cat ladder machine, includes frame (1), casing (2), actuating mechanism (3), multi-level linkage landing leg, triangular wheel (4) and power supply unit (5), its characterized in that, casing (2) demountable installation is on frame (1), and the confession people take, multi-level linkage landing leg is installed in the anterior left and right sides of fuselage of frame (1) and is covered and locate casing (2), actuating mechanism (3) and power supply unit (5) are all installed on frame (1), power supply unit (5) electric connection actuating mechanism (3), actuating mechanism (3) drive multi-level linkage landing leg through gear drive and move ahead in turn, triangular wheel (4) are installed in the fuselage rear portion left and right sides of frame (1), triangular wheel (4) drive the roll through multi-level linkage landing leg.
2. The multi-foot ladder climbing machine according to claim 1, characterized in that: the driving mechanism (3) is a stepping motor, the stepping motor is installed in the middle of the rack (1) through a motor support, an output shaft of the stepping motor is connected with the driving gear (7) through a turbine box (6), and the driving gear (7) is meshed with the driven gear (8).
3. The multi-foot ladder climbing machine according to claim 2, characterized in that: the power supply device (5) is a rechargeable battery pack, the power supply device (5) is installed on a rack (1) on the rear side of a turbine box (6), a square frame is vertically arranged at the rear end of the rack (1), the power supply device (5) is limited at the front end of the square frame, and universal wheels (10) are symmetrically installed on an upper cross rod of the square frame in the left-right direction.
4. The multi-foot ladder climbing machine according to claim 3, characterized in that: the front part of the upper plate surface of the casing (2) is provided with a handle (2-1), and the rear part of the handle (2-1) is provided with a cushion (2-2) on the casing (2).
5. The multi-foot ladder climbing machine according to claim 4, characterized in that: the multi-level linkage supporting legs are composed of 5 groups of rotatable climbing legs, each group of rotatable climbing legs is symmetrically distributed on the left side and the right side of the machine body of the machine frame (1), each rotatable climbing leg is uniformly distributed on the same side of the machine frame (1) in a front-back interval mode, the front side and the back side of the machine body of the machine frame are rotatably distributed in an inner-outer layer mode, each rotatable climbing leg comprises a crank shaft (9-1) and a supporting leg (9-2), an upper row, a middle row and a lower row of outer bearing seats (9-3) are symmetrically arranged on the left side and the right side of the machine body of the machine frame (1), bearings are arranged in the outer bearing seats (9-3), the upper row, the middle row and the lower row of crank shafts (9-1) are correspondingly arranged on the upper row, the middle row and the lower row of outer bearing seats (9-3) through the bearings so as to be transversely, the rear ends of the supporting legs (9-2) are mounted at the outer ends of the corresponding upper rows of crank shafts (9-1) through cranks (9-4) and are symmetrically distributed at the left side and the right side of the machine body of the rack (1), the rear parts of the supporting legs (9-2) are connected to the outer ends of the corresponding lower rows of crank shafts (9-1) through rocking bars (9-5), the driven gears (8) are connected to the upper rows of crank shafts (9-1) of the outermost rotatable climbing legs through flat keys and drive the outermost rotatable climbing legs to synchronously rotate through the upper rows of crank shafts (9-1), and the outermost rotatable climbing legs drive the inner rotatable climbing legs to rotate in a linkage mode through gear transmission mechanisms.
6. The multi-foot ladder climbing machine according to claim 5, characterized in that: the gear transmission mechanism comprises a main transmission gear (9-6) and a secondary transmission gear (9-7) which are respectively arranged on an upper row crank shaft (9-1) and a middle row crank shaft (9-1), the main transmission gear (9-6) and the secondary transmission gear (9-7) are respectively arranged on the inner sides of the left side plate and the right side plate of the frame (1) and on the middle row crank shaft (9-1), the upper row crank shaft (9) and the middle row crank shaft (9-1) are arranged in a staggered manner, the adjacent main transmission gear (9-6) is meshed and connected with the secondary transmission gear (9-7), the main transmission gear (9-6) of the outermost rotatable climbing leg synchronously rotates along with the upper row crank shaft (9-1) and is meshed and transmits the secondary transmission gear (9-7) to reversely rotate, and the reversely rotating secondary transmission gear (9-7) drives the main transmission gear (9-6), thereby ensuring that the rotating directions of the rotatable climbing legs are consistent.
7. The multi-foot ladder climbing machine according to claim 6, characterized in that: the supporting legs (9-2) are connected with the cranks (9-4) through crank connecting rod short shafts (9-8), deep groove ball bearings (9-9) are adopted at the joints, the rocking bars (9-5) are connected with the rear portions of the supporting legs (9-2) through the crank connecting rod short shafts (9-8), the deep groove ball bearings (9-9) are adopted at the joints, and the rocking bars (9-5) are fixedly connected with the outer ends of the lower-row crank shafts (9-1).
8. The multi-foot ladder climbing machine according to claim 7, characterized in that: the main transmission gear (9-6) and the auxiliary transmission gear (9-7) are respectively installed on an upper row crankshaft (9-1) and a middle row crankshaft (9-1) through gear positioning sleeves (9-10), needle roller bearings (9-11) are installed at the ends, far away from the left side plate and the right side plate of the rack (1), of the gear positioning sleeves (9-10), the needle roller bearings (9-11) are installed on inner bearing seats (9-12), the middle row crankshaft (9-1) is a short crankshaft, and the auxiliary transmission gear (9-7) is installed on the short crankshaft and limited through the inner bearing seats (9-12).
9. The multi-foot ladder climbing machine according to claim 8, characterized in that: triangular wheel (4) are installed in the left and right sides of the rear portion of frame (1) through triangular wheel installation axle (11), and outwards extend to the outside of casing (2), overturn casing (2), make universal wheel (10) touch to the ground, then universal wheel (10) cooperation triangular wheel (4) are used for the vertical line of pushing and the turn of stair intermittent type platform.
10. The multi-foot ladder climbing machine according to claim 9, characterized in that: the machine shell (2) is arranged outside the machine frame (1) through a detachable cover of a bolt and nut assembly.
11. The multi-foot ladder climbing machine according to claim 10, characterized in that: the device also comprises a motor controller, wherein the motor controller drives the driving mechanism (3) to start, stop, rotate forwards and backwards in a remote control or wire control mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922458471.8U CN211281262U (en) | 2019-12-31 | 2019-12-31 | Multi-foot ladder climbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922458471.8U CN211281262U (en) | 2019-12-31 | 2019-12-31 | Multi-foot ladder climbing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211281262U true CN211281262U (en) | 2020-08-18 |
Family
ID=72016016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922458471.8U Active CN211281262U (en) | 2019-12-31 | 2019-12-31 | Multi-foot ladder climbing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211281262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117842233A (en) * | 2024-03-08 | 2024-04-09 | 天津工业大学 | Cross-floor inspection robot and control method thereof |
-
2019
- 2019-12-31 CN CN201922458471.8U patent/CN211281262U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117842233A (en) * | 2024-03-08 | 2024-04-09 | 天津工业大学 | Cross-floor inspection robot and control method thereof |
| CN117842233B (en) * | 2024-03-08 | 2024-04-30 | 天津工业大学 | Cross-floor inspection robot and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102319154B (en) | Stair climbing wheel chair | |
| KR100964348B1 (en) | Motor scooter having three wheel | |
| CN101268977B (en) | Auxiliary method and device for speeling stairway of wheelchair | |
| CN211281262U (en) | Multi-foot ladder climbing machine | |
| CN202605146U (en) | Electrical stair climbing vehicle | |
| CN101972191A (en) | Self-control wheel-track automatic-switching stair-climbing machine | |
| CN201033579Y (en) | Portable semi-automatic stairway climbing carriage | |
| CN201861859U (en) | Intelligent electric-powered wheelchair | |
| CN102626359B (en) | Self-help electrically-powered wheelchair capable of going up and down stairs | |
| CN202376338U (en) | Solar electrically-powered wheelchair | |
| CN205181648U (en) | Electric power -assisted bicycke | |
| CN105464030A (en) | Campus environment beautifying truck | |
| CN105012091A (en) | Energy-saving A type auxiliary electric stair-climbing wheel chair | |
| CN201058202Y (en) | Multifunctional energy-saving running device | |
| CN102167068B (en) | Conversion structure for various states of dynamic baby carrier | |
| CN2840968Y (en) | Electronic capable chair | |
| CN210521234U (en) | Electric wheelchair with autonomous stair climbing function | |
| CN205256407U (en) | Novel execute industrial area power consumption and start shallow | |
| CN201275213Y (en) | Electric wheelchair | |
| CN114569352A (en) | Stair climbing wheelchair | |
| CN111700743A (en) | Electric wheelchair capable of going up and down stairs | |
| CN203354790U (en) | Multifunctional electric wheelchair | |
| CN205329609U (en) | Cosmetic car of campus environment | |
| CN216496128U (en) | Wheelchair with rising and steering structure for old people | |
| CN201005884Y (en) | Auxiliary device for wheel chair stairs-climbing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |