CN219605988U - Electric wheelchair worm and gear reducer capable of being pushed - Google Patents
Electric wheelchair worm and gear reducer capable of being pushed Download PDFInfo
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- CN219605988U CN219605988U CN202320668808.1U CN202320668808U CN219605988U CN 219605988 U CN219605988 U CN 219605988U CN 202320668808 U CN202320668808 U CN 202320668808U CN 219605988 U CN219605988 U CN 219605988U
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- wheelchair
- reducer
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- push rod
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Abstract
The utility model discloses a push-able electric wheelchair worm gear reducer, which comprises a reducer main body and a linkage mechanism, wherein the linkage mechanism is arranged at the power output end of the reducer main body, the linkage mechanism comprises a gear box, an output gear, a transmission gear, a wheelchair power shaft, a connecting gear, a bearing and a connecting rod, the output end of the reducer main body is provided with the output gear positioned in the gear box, the wheelchair power shaft penetrates through the transmission gear and the gear box and is connected with a wheelchair moving wheel, when the electric wheelchair is required to be manually pushed, an electric push rod is controlled to operate, the power end of the electric push rod drives the connecting gear to be shifted until the connection between the connecting gear and the transmission gear is disconnected, the electric wheelchair is pushed to move at the moment, the rotation of the power shaft does not drive the rotation of the main body gear in the reducer, so that the abrasion between the gears is avoided, and the use of a speed reducing assembly is protected.
Description
Technical Field
The utility model relates to the technical field of electric wheelchair accessories, in particular to a push-able worm gear reducer of an electric wheelchair.
Background
The electric wheelchair is formed by superposing the components such as a high-performance power driving device, an intelligent operating device, a battery and the like on the basis of the traditional manual wheelchair, is transformed and upgraded, is provided with the manual operating intelligent controller, and can drive the wheelchair to finish various functions such as advancing, retreating, steering, standing, lying and the like, and is very widely applied, and a speed reducing mechanism is arranged between a motor and a power wheel of the electric wheelchair in a matched manner, so that the wheelchair can be stably used.
The prior worm gear reducer for the electric wheelchair has the following defects in the use process: the worm gear reducer is a common reducer and is widely applied to the aspect of electric wheelchairs, but in the actual assembly process, a power shaft of the wheelchair is directly connected with a motor through the reducer, and the wheelchair is required to be manually pushed in a part of use environments, at the moment, the power shaft still drives the rotation of a reducer gear, so that abrasion and accelerated aging of the internal gear of the reducer are easily caused, and therefore, the worm gear reducer for the electric wheelchair capable of being pushed is provided.
Disclosure of Invention
The utility model mainly aims to provide a push-able worm gear reducer of an electric wheelchair, which can disconnect the connection between a reducer body and a power shaft when the wheelchair is pushed manually through a linkage mechanism arranged on one side of the reducer body, so that the problems in the background technology can be effectively solved.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an electric wheelchair worm gear reducer capable of pushing, includes the reduction gear main part, still includes link gear, link gear is installed to reduction gear main part power take off end, link gear includes gear box, output gear, drive gear, wheelchair power shaft, connecting gear, bearing and connecting rod, and the output gear that is located the gear box is installed to reduction gear main part output end, and the wheelchair power shaft runs through drive gear and gear box and is connected with wheelchair movable wheel, install connecting gear between output gear and the drive gear, still include control mechanism, the gear box surface is provided with control mechanism, control mechanism includes electric push rod, stopper A and stopper B, and electric push rod power take off end are connected with connecting gear through the connecting rod is installed to gear box surface one side, gear box inner wall is close to electric push rod one side and is provided with stopper A; the electric push rod power end is connected with the connecting gear through the connecting rod and the bearing, and in the actual use process of the electric wheelchair, the position of the connecting gear can be changed by controlling the displacement of the electric push rod power end, so that the linkage and disconnection between the output gear and the transmission gear are controlled, and the movement range of the limiting block A can be limited when the connecting gear is disconnected, so that the inner wall of the gear box is prevented from being scratched.
Further, a bearing is arranged in the middle position inside the connecting gear, and one side of the bearing is provided with a connecting rod connected with the power end of the external control component; the connecting rod plays a role in connection between the electric push rod and the connecting gear, and the bearing enables the connecting gear to normally rotate without being influenced by movement of the connecting rod.
Further, the output gear, the transmission gear and the connecting gear are meshed with each other; the gears are meshed with each other to realize the transmission of electric power.
Further, a limiting block B is arranged on one side, away from the electric push rod, of the inner wall of the gear box, and the limiting block B corresponds to the position of the bearing; the limiting block B can limit the moving range of the connecting gear when the electric push rod controls the connecting gear to reset, so that the gear engagement is ensured.
Compared with the prior art, the utility model has the following beneficial effects: the power end of the speed reducer main body is provided with a gear box, the wheelchair power shaft is directly connected with a power wheel of the wheelchair, a connecting gear, a transmission gear and an output gear play a role in connection under a normal use state, the power transmission is kept to enable the electric wheelchair to normally operate, when the electric wheelchair is required to be manually pushed, the electric push rod is controlled to operate, the power end of the electric push rod drives the displacement of the connecting gear until the connection between the connecting gear and the transmission gear and the output gear is disconnected, the electric wheelchair is pushed to move at the moment, the rotation of the wheelchair power shaft can not drive the rotation of the main body gear inside the speed reducer, abrasion among gears is avoided, and the use of a speed reducing assembly is protected; the electric push rod power end is connected with the connecting gear through the connecting rod and the bearing, and in the actual use process of the electric wheelchair, the position of the connecting gear can be changed by controlling the displacement of the electric push rod power end, so that the linkage and disconnection between the output gear and the transmission gear are controlled, and the movement range of the limiting block A can be limited when the connecting gear is disconnected, so that the inner wall of the gear box is prevented from being scratched.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a worm gear reducer of an electric wheelchair capable of being pushed.
Fig. 2 is a schematic diagram of the internal structure of a gear box of a worm gear reducer of an electric wheelchair capable of being pushed.
Fig. 3 is a schematic diagram of the internal side view of the gear box of the worm gear reducer of the electric wheelchair capable of being pushed.
In the figure: 1. a speed reducer body; 2. a linkage mechanism; 201. a gear box; 202. an output gear; 203. a transmission gear; 204. a wheelchair power shaft; 205. a connecting gear; 206. a bearing; 207. a connecting rod; 3. a control mechanism; 301. an electric push rod; 302. a limiting block A; 303. and a limiting block B.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-3, a pushable electric wheelchair worm gear reducer comprises a reducer body 1 and a linkage mechanism 2, wherein the linkage mechanism 2 is arranged at the power output end of the reducer body 1, the linkage mechanism 2 comprises a gear box 201, an output gear 202, a transmission gear 203, a wheelchair power shaft 204, a connecting gear 205, a bearing 206 and a connecting rod 207, the output end of the reducer body 1 is provided with the output gear 202 positioned in the gear box 201, the wheelchair power shaft 204 penetrates through the transmission gear 203 and the gear box 201 and is connected with a wheelchair moving wheel, a connecting gear 205 is arranged between the output gear 202 and the transmission gear 203, the pushchair further comprises a control mechanism 3, the control mechanism 3 comprises an electric push rod 301, a limiting block A302 and a limiting block B303, the electric push rod 301 is arranged at one side of the surface of the gear box 201, the power output end of the electric push rod 301 is connected with the connecting gear 205 through the connecting rod 207, and the limiting block A302 is arranged at one side of the inner wall of the gear box 201 close to the electric push rod 301; the power end of the electric push rod 301 is connected with the connecting gear 205 through the connecting rod 207 and the bearing 206, and in the actual use process of the electric wheelchair, the position of the connecting gear 205 can be changed by controlling the displacement of the power end of the electric push rod 301, so that the linkage and disconnection between the output gear 202 and the transmission gear 203 are controlled, and the movement range of the limiting block A302 can be limited when the connecting gear 205 is disconnected, so that the inner wall of the gear box 201 is prevented from being scratched.
A bearing 206 is arranged in the middle position inside the connecting gear 205, a connecting rod 207 connected with the power end of an external control component is arranged on one side of the bearing 206, and the output gear 202, the transmission gear 203 and the connecting gear 205 are meshed with each other; the connecting rod 207 plays a role in connection between the electric push rod 301 and the connecting gear 205, the bearing 206 enables the connecting gear 205 to rotate normally, the connecting gear is not affected by movement of the connecting rod 207, and all gears are meshed with each other to realize transmission of electric power.
A limiting block B303 is arranged on one side, far away from the electric push rod 301, of the inner wall of the gear box 201, and the limiting block B303 corresponds to the bearing 206 in position; the limiting block B303 can limit the moving range of the connecting gear 205 when the electric push rod 301 controls the connecting gear 205 to reset, so as to ensure the meshing between the gears.
It should be noted that, when the utility model is a push-able electric wheelchair worm gear reducer, the power end of the reducer body 1 is provided with a gear box 201, the wheelchair power shaft 204 is directly connected with the power wheel of the wheelchair, the connecting gear 205, the transmission gear 203 and the output gear 202 play a role in connection under normal use, the power transmission is kept to enable the electric wheelchair to normally operate, when the electric wheelchair needs to be manually pushed, the electric push rod 301 is controlled to operate, the power end drives the displacement of the connecting gear 205 through the connecting rod 207 until the connection with the transmission gear 203 and the output gear 202 is disconnected, at this time, the electric wheelchair is pushed to move, the rotation of the wheelchair power shaft 204 does not drive the rotation of the main body gear inside the reducer, thereby avoiding the abrasion between gears and protecting the use of a speed reducing assembly; the power end of the electric push rod 301 is connected with the connecting gear 205 through the connecting rod 207 and the bearing 206, and in the actual use process of the electric wheelchair, the position of the connecting gear 205 can be changed by controlling the displacement of the power end of the electric push rod 301, so that the linkage and disconnection between the output gear 202 and the transmission gear 203 are controlled, and the movement range of the limiting block A302 can be limited when the connecting gear 205 is disconnected, so that the inner wall of the gear box 201 is prevented from being scratched.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides an electric wheelchair worm gear reducer capable of pushing, includes reduction gear main part (1), a serial communication port, still includes link gear (2), link gear (2) is installed to reduction gear main part (1) power take off end, link gear (2) include gear box (201), output gear (202), transfer gear (203), wheelchair power shaft (204), connecting gear (205), bearing (206) and connecting rod (207), output gear (202) that are located gear box (201) inside are installed to reduction gear main part (1) output, wheelchair power shaft (204) run through transfer gear (203) and gear box (201) and are connected with wheelchair movable wheel, install connecting gear (205) between output gear (202) and the transfer gear (203), still include control mechanism (3), gear box (201) surface is provided with control mechanism (3), control mechanism (3) include electric push rod (301), stopper A (302) and stopper B (303), electric push rod (301) power take off end are connected with gear (207) through gear (205) are installed to gear box (201) surface one side, a limiting block A (302) is arranged on one side, close to the electric push rod (301), of the inner wall of the gear box (201).
2. The practical worm and gear reducer of the electric wheelchair according to claim 1, wherein: a bearing (206) is arranged in the middle position inside the connecting gear (205), and a connecting rod (207) connected with the power end of the external control component is arranged on one side of the bearing (206).
3. The practical worm and gear reducer of the electric wheelchair according to claim 1, wherein: the output gear (202), the transmission gear (203) and the connecting gear (205) are meshed with each other.
4. The practical worm and gear reducer of the electric wheelchair according to claim 1, wherein: a limiting block B (303) is arranged on one side, far away from the electric push rod (301), of the inner wall of the gear box (201), and the limiting block B (303) corresponds to the bearing (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320668808.1U CN219605988U (en) | 2023-03-30 | 2023-03-30 | Electric wheelchair worm and gear reducer capable of being pushed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320668808.1U CN219605988U (en) | 2023-03-30 | 2023-03-30 | Electric wheelchair worm and gear reducer capable of being pushed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219605988U true CN219605988U (en) | 2023-08-29 |
Family
ID=87752223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320668808.1U Active CN219605988U (en) | 2023-03-30 | 2023-03-30 | Electric wheelchair worm and gear reducer capable of being pushed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219605988U (en) |
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2023
- 2023-03-30 CN CN202320668808.1U patent/CN219605988U/en active Active
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