CN211984648U - Self-walking learning chair - Google Patents
Self-walking learning chair Download PDFInfo
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- CN211984648U CN211984648U CN201921879803.3U CN201921879803U CN211984648U CN 211984648 U CN211984648 U CN 211984648U CN 201921879803 U CN201921879803 U CN 201921879803U CN 211984648 U CN211984648 U CN 211984648U
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Abstract
The utility model discloses a from walking study chair overcomes using the study chair to teenagers and does not possess from the function of walking among the prior art, leads to the weak point of teenagers' user transport study chair difficulty, provides and has set up from walking drive structure, can be controlled independently to remove and do not influence a from walking study chair of study chair normal use. The structure of the self-locking type chair comprises a chair main body and a mobile base, wherein the mobile base comprises a base shell, a gravity self-locking universal wheel, a lifting chassis, driving wheels and a driving mechanism, the chair main body is arranged at the top of the base shell, the gravity self-locking universal wheel is respectively arranged at four corners of the ground step of the base shell, the lifting chassis is arranged at the middle of the bottom of the base shell, the number of the driving wheels is two, the driving wheels are arranged on the lifting chassis, the two driving wheels are coaxially arranged, and the two driving wheels are respectively provided.
Description
Technical Field
The utility model relates to a seat, in particular to a learning chair with autonomous driving walking movement.
Background
The learning chair is a seat specially used for children, a cushion and a backrest of the learning chair are adjustable, and the cushion can be lifted to adapt to the body structure change of the children during growth and development, so that the sitting posture is ensured to be healthy and comfortable. Other electronic equipment is also equipped to increase the function and the applicability of the seat. However, this results in a large emphasis on learning chairs and difficulties for children to move their position. Therefore, it is necessary to design a learning chair capable of controlling the self-walking movement position by the user, so as to facilitate the adjustment of the position of the learning chair during or after the self-use of the learning chair by children. And the corresponding self-walking driving mechanism can not influence the normal use of the learning chair.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome among the prior art and use the study chair to teenagers 'children and do not possess from the function of walking, lead to the weak point of teenagers' user transport study chair difficulty, provide and set up from the drive structure of walking, can be controlled independently to remove and do not influence a from the study chair of walking of study chair normal use.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a from walking study chair, including chair main part and action base, the action base includes base casing, universal wheel, lift chassis, drive wheel and actuating mechanism, the chair main part sets up at base casing top, and base casing's ground step four corners is equipped with the universal wheel respectively, and base casing's bottom middle part is equipped with the lift chassis, drive wheel quantity sets up in the lift chassis for two, and two coaxial arrangements of drive wheel, two drive wheels are provided with actuating mechanism respectively.
The utility model discloses a from walking study chair through the drive wheel drive translation of base casing below. The two driving wheels are respectively provided with an independent driving mechanism, and the steering movement of the learning chair and the like can be realized through differential driving of the two driving wheels. The driving wheel is arranged on the lifting chassis, when the lifting chassis is located at a lifting position, the driving wheel suspension does not contact the ground, and the learning chair can be freely dragged without influencing use. When the learning chair needs to walk by itself, the lifting chassis descends to enable the driving wheels to contact the ground.
Preferably, the bottom of the inner cavity of the base shell is provided with an opening, the lifting chassis is arranged at the opening, two sides of the lifting chassis are connected with the base shell in a sliding mode and are provided with a lifting mechanism, the lifting chassis is provided with two symmetrical strip-shaped holes, the driving wheel is arranged above the strip-shaped holes, and the bottom edge of the driving wheel penetrates through the strip-shaped holes to expose the bottom surface of the lifting chassis.
Preferably, the lifting mechanism comprises a screw rod sliding seat, a servo motor, a lifting screw rod and a travel switch, the screw rod sliding seat is arranged on one side of the lifting chassis, the lifting screw rod is vertically arranged at the bottom of the base shell, the upper end of the lifting screw rod penetrates through one side of the lifting chassis to be connected with the base shell, the screw rod sliding seat is connected with the lifting screw rod, the servo motor is connected with the screw rod sliding seat, and the travel switch is arranged at two ends of the lifting screw rod.
The lifting mechanism is used for driving the lifting chassis to lift, when the lifting chassis is located at a lifting position, the driving wheel suspension does not contact the ground, and the learning chair can be freely dragged without influencing use. When the learning chair needs to walk by itself, the lifting chassis descends to enable the driving wheels to contact the ground.
As preferred, actuating mechanism includes motor platform, driving motor, action wheel, drive belt, follows driving wheel and auxiliary wheel, and the motor platform sets up in lift chassis one side, driving motor sets up in motor platform top, and motor platform is close to drive wheel one side and is equipped with elastic positioning element, the auxiliary wheel rotates and connects elastic positioning element, driving motor is connected to the action wheel, follows driving wheel coaxial coupling drive wheel, and the action wheel is connected to the drive belt, follows driving wheel and auxiliary wheel.
Preferably, the elastic positioning piece comprises a sliding rod and a return spring, the sliding rod is connected with the motor platform in a sliding mode, the sliding rod is sleeved with the return spring, and the two ends of the sliding rod are provided with limiting convex rings.
The two driving wheels are respectively provided with a group of driving mechanisms to realize the independent driving of the two driving wheels, so that the driving wheels at two sides can be driven in a differential manner to realize the operation of steering and moving the learning chair. The driving mechanism is mainly realized by a conveyor belt wheel mechanism. The auxiliary wheel can slide up and down and elastically reset, and is matched with the assistance of the lifting chassis in the ascending and descending processes to keep the tension of the transmission belt. Specifically, when the lifting chassis descends, the distance between the driving wheel and the driven wheel is increased, and the elastic positioning piece is compressed, so that the auxiliary wheel is close to the connecting line position of the driving wheel and the driven wheel, and the breakage of the driving belt due to overlarge tensioning tension is prevented; when the lifting chassis rises, the driving wheel and the driven wheel are close to each other, the elastic positioning piece is elastically reset, the auxiliary wheel is far away from the connecting line position of the driving wheel and the driven wheel, and the tension of the transmission belt is maintained to prevent the transmission belt from loosening.
Preferably, be equipped with control panel and battery in the base casing, the control panel includes main control unit, drive motor control module, servo motor control module and power management module, and main control unit connects drive motor control module, servo motor control module and power management module respectively, and drive motor control module connects driving motor, and servo motor is connected to servo motor control module, and the control panel is connected to the battery.
Preferably, laser radar sensors are arranged on the periphery of the base shell and connected with the control board.
The utility model discloses a study chair has increased the lift chassis on the basis of current study chair, and two drive wheels on the lift chassis can drive study chair autonomous movement. The steering operation of the learning chair is realized by differential traveling of the two drive wheels. When the self-walking chair is not needed, the lifting chassis rises to enable the bottom of the driving wheel to be separated from the ground, so that the whole learning chair can be conveniently moved through the universal wheels.
Drawings
Fig. 1 is a schematic structural view of a self-walking chair of the present invention.
Fig. 2 is a partial enlarged view of a mobile base of the self-walking learning chair of the present invention.
Fig. 3 is a top view of the action base of the self-walking learning chair of the present invention.
Fig. 4 is a schematic structural view of the self-walking action base of the self-walking learning chair of the present invention.
In the figure: 1. a chair main body; 2. a base housing; 3. a universal wheel; 4. lifting the chassis; 401. a strip-shaped hole; 5. a drive wheel; 601. a lead screw slide seat; 602. a servo motor; 603. a lifting screw rod; 604. a travel switch; 701. a motor platform; 702. a drive motor; 703. a driving wheel; 704. a transmission belt; 705. a driven wheel; 706. an auxiliary wheel; 707. a slide bar; 708. a return spring; 8. a lidar sensor.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, fig. 2, fig. 3, the utility model discloses a from walking study chair, including chair main part 1 and action base, the action base includes base casing 2, universal wheel 3, lift chassis 4, drive wheel 5 and actuating mechanism, chair main part 1 sets up at base casing 2 tops, and base casing 2's ground step four corners is equipped with universal wheel 3 respectively, and base casing 2's bottom middle part is equipped with lift chassis 4, 5 quantity of drive wheel are two and set up in lift chassis 4, and two 5 coaxial arrangements of drive wheel, and two drive wheel 5 are provided with actuating mechanism respectively.
The inner chamber of base casing 2 is equipped with the opening in the bottom, lift chassis 4 set up in the opening part, 4 both sides of lift chassis and 2 sliding connection of base casing are equipped with elevating system, and lift chassis 4 is equipped with the bar hole 401 of two symmetries, drive wheel 5 sets up in bar hole 401 top, and the bottom edge of drive wheel 5 passes bar hole 401 and exposes the bottom surface of lift chassis 4.
Elevating system includes lead screw slide 6, servo motor 602, lift lead screw 603 and travel switch 604, lead screw slide 6 sets up in 4 one sides on the lift chassis, the vertical bottom that sets up at base housing 2 of lift lead screw 603, lift lead screw 603 upper end is passed 4 one sides on the lift chassis and is connected base housing 2, lead screw slide 6 is connected to lead screw slide 603, servo motor 602 connects lead screw slide 6, lift lead screw 603 both ends are equipped with travel switch 604.
The lifting mechanism is used for driving the lifting chassis 4 to lift, when the lifting chassis 4 is located at a lifting position, the driving wheel 5 is suspended and does not contact the ground, and the learning chair can be freely dragged without influencing use. When the learning chair needs to walk by itself, the lifting chassis 4 is lowered to enable the driving wheel 5 to contact the ground.
The driving mechanism comprises a motor platform 701, a driving motor 702, a driving wheel 703, a transmission belt 704, a driven wheel 705 and an auxiliary wheel 706, wherein the motor platform 701 is arranged on one side of the lifting chassis 4, the driving motor 702 is arranged above the motor platform 701, an elastic positioning piece is arranged on one side, close to the driving wheel 5, of the motor platform 701, the auxiliary wheel 706 is rotatably connected with the elastic positioning piece, the driving wheel 703 is connected with the driving motor 702, the driven wheel 705 is coaxially connected with the driving wheel 5, and the transmission belt 704 is connected with the driving wheel 703, the driven wheel 705 and the auxiliary wheel.
The elastic positioning piece comprises a sliding rod 707 and a return spring 708, the sliding rod 707 is connected with the motor platform 701 in a sliding mode, the return spring 708 is sleeved on the sliding rod 707, and limiting convex rings are arranged at two ends of the sliding rod 707.
The two driving wheels 5 are respectively provided with a group of driving mechanisms to realize the independent driving of the two driving wheels 5, so that the driving wheels 5 on the two sides can be driven by differential speed to realize the operation of steering and moving the learning chair. The driving mechanism is mainly realized by a conveyor belt wheel mechanism. Wherein the auxiliary wheel 706 can slide up and down and is elastically restored, and the auxiliary wheel keeps the transmission belt 704 tensioned in cooperation with the ascending and descending processes of the lifting chassis 4. Specifically, when the lifting chassis 4 descends, the distance between the driving wheel 703 and the driven wheel 705 is increased, and the elastic positioning piece is compressed, so that the auxiliary wheel 706 is close to the connecting line position of the driving wheel 703 and the driven wheel 705, and the breakage caused by overlarge tensioning force of the transmission belt 704 is prevented; when the lifting chassis 4 is lifted, the driving wheel 703 and the driven wheel 705 are close to each other, and the elastic positioning piece is elastically reset, so that the auxiliary wheel 706 is far away from the connecting line position of the driving wheel 703 and the driven wheel 705, and the tension of the transmission belt 704 is maintained to prevent the transmission belt 704 from loosening.
Be equipped with control panel and battery in base casing 2, the control panel includes main control unit, driving motor 702 control module, servo motor 602 control module and power management module, and driving motor 702 control module, servo motor 602 control module and power management module are connected respectively to main control unit, and driving motor 702 is connected to driving motor 702 control module, and servo motor 602 is connected to servo motor 602 control module, and the control panel is connected to the battery.
And laser radar sensors 8 are arranged around the base shell 2, and the laser radar sensors 8 are connected with a control board.
As shown in fig. 2 and 4, the self-walking chair of the present invention is driven to move horizontally by the driving wheel 5 below the base housing 2. The two driving wheels 5 are respectively provided with an independent driving mechanism, and the steering movement of the learning chair and the like can be realized through the differential driving of the two driving wheels 5. The driving wheel 5 is arranged on the lifting chassis 4, when the lifting chassis 4 is positioned at a lifting position, the driving wheel 5 is suspended and does not contact the ground, and the learning chair can be freely dragged without influencing the use. When the learning chair needs to walk by itself, the lifting chassis 4 is lowered to enable the driving wheel 5 to contact the ground.
Claims (7)
1. The utility model provides a from walking study chair, characterized by, includes chair main part and action base, the action base includes base casing, universal wheel, lift chassis, drive wheel and actuating mechanism, the chair main part sets up at base casing top, and base casing's ground step four corners is equipped with the universal wheel respectively, and base casing's bottom middle part is equipped with the lift chassis, drive wheel quantity sets up in the lift chassis for two, and two drive wheels are coaxial to be arranged, and two drive wheels are provided with actuating mechanism respectively.
2. A self-walking chair as claimed in claim 1, wherein the inner cavity of the base housing has an opening at the bottom, the lifting chassis is disposed at the opening, two sides of the lifting chassis are slidably connected to the base housing and provided with a lifting mechanism, the lifting chassis has two symmetrical bar-shaped holes, the driving wheel is disposed above the bar-shaped holes, and the bottom edge of the driving wheel passes through the bar-shaped holes to expose the bottom surface of the lifting chassis.
3. A self-walking learning chair as claimed in claim 2, wherein the lifting mechanism comprises a screw slide seat, a servo motor, a lifting screw and a travel switch, the screw slide seat is disposed on one side of the lifting chassis, the lifting screw is vertically disposed on the bottom of the base shell, the upper end of the lifting screw passes through one side of the lifting chassis and is connected with the base shell, the screw slide seat is connected with the lifting screw, the servo motor is connected with the screw slide seat, and the travel switch is disposed at two ends of the lifting screw.
4. A self-walking learning chair as claimed in claim 3, wherein the driving mechanism comprises a motor platform, a driving motor, a driving wheel, a driving belt, a driven wheel and an auxiliary wheel, the motor platform is disposed on one side of the lifting chassis, the driving motor is disposed above the motor platform, an elastic positioning member is disposed on one side of the motor platform close to the driving wheel, the auxiliary wheel is rotatably connected with the elastic positioning member, the driving wheel is connected with the driving motor, the driven wheel is coaxially connected with the driving wheel, and the driving wheel, the driven wheel and the auxiliary wheel are connected with the driving belt.
5. A self-walking learning chair as claimed in claim 4, wherein the elastic locating element comprises a slide bar and a return spring, the slide bar is slidably connected with the motor platform, the slide bar is sleeved with the return spring, and two ends of the slide bar are provided with limit convex rings.
6. A self-walking learning chair according to claim 4, wherein the base housing is provided with a control panel and a storage battery, the control panel comprises a main controller, a driving motor control module, a servo motor control module and a power management module, the main controller is respectively connected with the driving motor control module, the servo motor control module and the power management module, the driving motor control module is connected with the driving motor, the servo motor control module is connected with the servo motor, and the storage battery is connected with the control panel.
7. A self-walking learning chair as claimed in claim 6, wherein the base housing is provided with lidar sensors around it, the lidar sensors being connected to a control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921879803.3U CN211984648U (en) | 2019-11-01 | 2019-11-01 | Self-walking learning chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921879803.3U CN211984648U (en) | 2019-11-01 | 2019-11-01 | Self-walking learning chair |
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| Publication Number | Publication Date |
|---|---|
| CN211984648U true CN211984648U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921879803.3U Active CN211984648U (en) | 2019-11-01 | 2019-11-01 | Self-walking learning chair |
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| CN (1) | CN211984648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115399602A (en) * | 2022-08-30 | 2022-11-29 | 湖州职业技术学院(湖州广播电视大学)(湖州社区大学) | Baby walker |
-
2019
- 2019-11-01 CN CN201921879803.3U patent/CN211984648U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115399602A (en) * | 2022-08-30 | 2022-11-29 | 湖州职业技术学院(湖州广播电视大学)(湖州社区大学) | Baby walker |
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