CN210734280U - Last steering gear case helping hand structure of bassinet - Google Patents
Last steering gear case helping hand structure of bassinet Download PDFInfo
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- CN210734280U CN210734280U CN201921502338.1U CN201921502338U CN210734280U CN 210734280 U CN210734280 U CN 210734280U CN 201921502338 U CN201921502338 U CN 201921502338U CN 210734280 U CN210734280 U CN 210734280U
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Abstract
The utility model discloses a power-assisted structure of a steering gear box on a baby carriage, which comprises a gear box shell, wherein a steering gear is arranged in the gear box shell, a steering motor is arranged outside the gear box shell, the middle part of the steering gear is connected with a rotating shaft, the rotating shaft is connected with a steering wheel, the steering gear is connected with a steering iron frame, the steering iron frame is provided with a driving rod, and the driving rod is inserted on a kidney-shaped trepanning piece arranged in the middle part of a steering wheel shaft; the magnet is rectangular and is arranged on a steering gear of the steering wheel, the number of the Hall sensors is two, the two Hall sensors are respectively arranged on the rotating shaft and the steering gear, the magnet is positioned between the two Hall sensors, and the two Hall sensors correspond to the middle part of the magnet; the steering motor drives the steering gear to rotate through the gear set. The utility model discloses a corresponding response electromotive force is acquireed in magnet and hall sensor's cooperation to through magnetic field control drive motor's direction of work and state, and then the rotation axis and the support that turns to of drive bassinet help it to turn to and automatic re-setting provides the helping hand.
Description
Technical Field
The utility model relates to a gear box helping hand structure especially relates to a last gear box helping hand structure that turns to of bassinet belongs to children's vehicle technical field.
Background
In order to realize the remote control steering function, the electric toy car for children sold in the market is connected with a driving motor on a steering wheel to drive a rotating shaft to turn left and right; however, the manual driving requires a load of resistance in the directions of the motor and the gear, and is particularly laborious for children. And has no steering automatic reset function. Therefore, the development of a power assisting structure of a steering gear box on a baby carriage becomes a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned not enough, provide a steering gear case helping hand structure on bassinet.
The above object of the present invention is achieved by the following technical solutions: a power-assisted structure of a steering gear box on a baby carrier comprises a gear box shell, a steering motor, a rotating shaft, a Hall sensor, a steering gear, a magnet, a steering iron frame, a driving rod and a kidney-shaped trepanning piece, wherein the gear box shell is fixed on the bottom of a vehicle body, the steering gear is installed in the gear box shell, the steering motor is arranged outside the gear box shell and drives the steering gear through a gear set, the middle part of the steering gear is connected with the rotating shaft, the rotating shaft is connected with a steering wheel, the steering gear is connected with the steering iron frame, the steering iron frame is provided with the driving rod, and the driving rod is inserted in the; the magnet is rectangular and is arranged on a steering gear of the steering wheel, the number of the Hall sensors is two, the two Hall sensors are respectively arranged on the rotating shaft and the gear box shell, the magnet is positioned between the two Hall sensors, and the two Hall sensors correspond to the middle part of the magnet; the steering motor drives the steering gear to rotate through the gear set.
Further, the magnet is a permanent magnet.
Furthermore, the Hall sensor is provided with three connecting columns, one connecting column is connected with the positive plate of the power supply, the other connecting column is grounded, and the other connecting column is a signal output end.
The utility model provides a hall sensor can respond to the produced magnetic field of magnet to produce induced electromotive force when magnet moves. The electromotive force induced by the hall sensor changes with the change of the magnetic field intensity, and the stronger the magnetic field, the higher the electromotive force, and the weaker the magnetic field, the lower the electromotive force.
When the steering wheel is rotated, the magnetic field on the steering wheel moves, and the induced electromotive force U1 obtained by the Hall sensor indicates the rotating angle of the steering wheel according to the magnitude of the induced electromotive force when the position of the magnet and the position of the Hall sensor are fixed. The induced electromotive force U2 obtained by the Hall sensor on the gear box shell in the magnetic field of the steering gear represents the rotating angle of the Hall sensor, the induced electromotive force U1 and the induced electromotive force U2 are obtained by collecting, summarizing and comparing through the main control microprocessor unit, and the steering motor is driven to rotate in the corresponding direction to perform steering power assistance.
When the baby carriage is driven by hand or remote control to steer, the steering support and the steering gear rotate by taking the rotating shaft as the center of a circle to drive the magnet to move by taking the rotating shaft core as a circular point, when the magnetic field of the magnet acts on the Hall sensor, the sensing signal of the Hall sensor changes the working state of the steering motor, and the steering motor drives the steering gear to drive the rotating shaft to rotate in the direction corresponding to the rotating shaft, so that the functions of steering assistance and automatic correction are performed.
Compared with the prior art, the utility model the advantage be: the utility model discloses a corresponding response electromotive force is acquireed in magnet and hall sensor's cooperation to through magnetic field control drive motor's direction of work and state, and then the rotation axis and the support that turns to of drive bassinet help it to turn to and automatic re-setting provides the helping hand.
Drawings
Fig. 1 is a schematic view of the exploded structure of the present invention.
Fig. 2 is a schematic plan view of the present invention.
Fig. 3 is a schematic view of the present invention applied to a stroller.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 control circuit diagram of a steering gearbox with hall sensor.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a power-assisted structure of a steering gear box on a baby carriage comprises a gear box shell 1, a steering motor 2, a rotating shaft 3, a hall sensor 4, a steering gear 5, a magnet 6, a steering iron frame 7, a driving rod 8 and a kidney-shaped trepan boring piece 9, wherein the gear box shell 1 is fixed on the bottom of a carriage body, the steering gear 5 is installed in the gear box shell 1, the steering motor is arranged outside the gear box shell 1 and drives the steering gear 5 through a gear set, the rotating shaft 3 is connected to the middle part of the steering gear 5, the rotating shaft 3 is connected with a steering wheel, the steering gear 5 is connected with the steering iron frame 7, the driving rod 8 is arranged on the steering iron frame 7, and the driving rod 8 is inserted in the kidney; the magnet 6 is rectangular and is arranged on a steering gear 5 of a steering wheel, the number of the Hall sensors 4 is two, the two Hall sensors are respectively arranged on the rotating shaft 3 and the gear box shell 1, the magnet 6 is positioned between the two Hall sensors 4, and the two Hall sensors 4 are both corresponding to the middle part of the magnet 6; the steering motor 2 drives the steering gear 5 to rotate through a gear set.
Further, the magnet 6 is a permanent magnet.
Further, the hall sensor 4 has three connecting posts, one of which is connected with the power supply positive plate, the other is grounded, and the other is a signal output end.
Before the hall sensor 4 and the magnet 6 are installed, the hall sensor 4 needs to be tested to obtain the electromotive force variation induced by the hall sensor 4 in the magnetic field of the movement of the magnet 6. When the buggy turns in actual operation, the magnet 6 moves and the hall sensor 4 handles the stationary state. The movement of the magnet 6 changes the magnetic field formed by the magnet 6, so that the hall sensor 4 generates an induced electromotive force U2, and the induced electromotive force U2 corresponds to a steering angle. The steering angle corresponding to the induced electromotive force U2 generated by the Hall sensor 4 in the magnetic field is compared with the signal stored by the main control microprocessor unit, and the main control microprocessor unit judges the position of the Hall sensor relative to the magnet to change the working state of the steering motor. The electric potential signal obtained in the main control microprocessor unit is the steering angle corresponding to the induced electric potential U1 obtained by the Hall sensor on the corresponding rotating shaft when the magnetic field on the steering wheel moves. The main control microprocessor unit compares the steering angles corresponding to the U1 and the U2, and controls the steering motor 2 to drive the steering gear 5 to drive the rotating shaft to rotate in the direction corresponding to the rotating shaft, so that the power assisting function is realized.
As shown in fig. 5, the control circuit diagram of the steering gear box with the hall sensor includes a main control micro-processing unit, a gear control unit, a 2.4G high frequency communication unit, a motor driving unit, a motor speed control input unit, a steering control input unit, a power management unit and a steering control driving unit. In the present embodiment, the steering control input unit includes a steering wheel potentiometer, i.e., a steering wheel is turned by rotating the steering wheel, and the direction and angle of the steering can be measured. Furthermore, the steering control input unit can also control the steering through a remote controller, and the steering direction and angle of the remote controller are measured. And the angle value is transmitted to the main control micro-processing unit. The circuit diagram and connection relationship of the above units are shown in fig. 5.
The magnet 6 is fixed on the steering gear 5, the Hall sensor 4 is fixed on the gear box shell 1 and is tightly attached to the magnet 6, the steering gear 5 rotates, the magnet 6 moves to generate a moving magnetic field, the Hall sensor 4 is located in the moving magnetic field to obtain steering angles corresponding to different induced potentials U1, and the steering angles are compared with data stored in the main control microprocessor unit to obtain the physical position of the Hall sensor 4, so that the working state of the steering motor 2 is changed.
The induced electromotive force U2 is obtained by measuring different positions of the hall sensor used in the magnetic field formed by the permanent magnet used when mounting. The distance between the Hall sensor and the surface of the magnet is not more than 10mm, specifically 1 mm. For example, in the present embodiment, the magnet 6 used is an N42 permanent magnet. The N pole of the magnet 6 is located at the right end and the S pole is located at the left end. The measured induced electromotive force of the hall sensor 4 at the N pole of the permanent magnet is 1.8V, the induced electromotive force at the O point at the intermediate position is 1.4V, the induced electromotive force at the S pole position is 0.8V, and the angle position corresponding to the induced electromotive force with the level difference of 0.1V is recorded to the main control micro-processing unit. For example, the steering wheel is moved to drive the steering support and the steering gear to rotate, so that the magnet moves, the magnetic field moves, the potential difference obtained by the Hall electron is 1.2V, the data in the main control micro-processing unit is compared, the potential difference is between 1.4V at the middle point O and 0.8 of the maximum right-turning position, and when the O point at the middle point of the magnetic field corresponds to the Hall sensor, the induced potential difference is 1.4V.
The electric potential signal obtained in the main control microprocessor unit is the steering angle corresponding to the induced electric potential U1 obtained by the Hall sensor on the corresponding rotating shaft when the magnetic field on the steering wheel moves. And comparing the steering angles corresponding to the U1 and the U2, and driving the steering motor 5 to rotate by the main control microprocessor unit through the steering control driving unit to assist the steering of the steering wheel.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (3)
1. The utility model provides a gearbox helping hand structure turns to on bassinet which characterized in that: the steering gear box comprises a gear box shell, a steering motor, a rotating shaft, a Hall sensor, a steering gear, a magnet, a steering iron frame, a driving rod and a kidney-shaped trepanning piece, wherein the gear box shell is fixed on the bottom of a vehicle body, the steering gear is installed in the gear box shell, the steering motor is arranged outside the gear box shell and drives the steering gear through a gear set, the rotating shaft is connected to the middle part of the steering gear, the rotating shaft is connected with a steering wheel, the steering gear is connected with the steering iron frame, the steering iron frame is provided with the driving rod, and the driving rod is inserted into the kidney; the magnet is rectangular and is arranged on a steering gear of the steering wheel, the number of the Hall sensors is two, the two Hall sensors are respectively arranged on the rotating shaft and the gear box shell, the magnet is positioned between the two Hall sensors, and the two Hall sensors correspond to the middle part of the magnet; the steering motor drives the steering gear to rotate through the gear set.
2. A power assist structure for a steering gear box of a stroller as defined in claim 1, wherein: the magnet is a permanent magnet.
3. A power assist structure for a steering gear box of a stroller as defined in claim 1, wherein: the Hall sensor is provided with three connecting columns, one connecting column is connected with the positive plate of the power supply, the other connecting column is grounded, and the other connecting column is a signal output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921502338.1U CN210734280U (en) | 2019-09-10 | 2019-09-10 | Last steering gear case helping hand structure of bassinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921502338.1U CN210734280U (en) | 2019-09-10 | 2019-09-10 | Last steering gear case helping hand structure of bassinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210734280U true CN210734280U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921502338.1U Active CN210734280U (en) | 2019-09-10 | 2019-09-10 | Last steering gear case helping hand structure of bassinet |
Country Status (1)
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|---|---|
| CN (1) | CN210734280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230808A (en) * | 2022-07-05 | 2022-10-25 | 嘉兴市金潼电子股份有限公司 | Steering control structure of electric baby carriage and electric baby carriage applying same |
-
2019
- 2019-09-10 CN CN201921502338.1U patent/CN210734280U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230808A (en) * | 2022-07-05 | 2022-10-25 | 嘉兴市金潼电子股份有限公司 | Steering control structure of electric baby carriage and electric baby carriage applying same |
| CN115230808B (en) * | 2022-07-05 | 2023-09-15 | 嘉兴市金潼电子股份有限公司 | Steering control structure of electric baby carrier and electric baby carrier applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314000 Building 1, No.18 Jinhui Road, Xincang Town, Pinghu City, Jiaxing City, Zhejiang Province Patentee after: Pinghu small sun baby carriage Co.,Ltd. Address before: 314000 Building 1, No.18 Jinhui Road, Xincang Town, Pinghu City, Jiaxing City, Zhejiang Province Patentee before: PINGHU CITY XIAOTAIYNG CHILD VECHILES Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A power-assisted structure of steering gear box on a baby carriage Effective date of registration: 20230111 Granted publication date: 20200612 Pledgee: Zhejiang Pinghu rural commercial bank Limited by Share Ltd. new warehouse branch Pledgor: Pinghu small sun baby carriage Co.,Ltd. Registration number: Y2023330000105 |