Lifting mechanism of forklift baby carriage and forklift baby carriage

Abstract

The utility model discloses a lifting mechanism of a forklift buggy and the forklift buggy. The lifting mechanism comprises a fixed seat, a movable seat, a screw rod, a nut and a forklift arm. Accurate up-and-down movement of the forklift arm can be achieved through the lead screw, the nut and the transmission device, the structure of the lead screw and the nut is more durable compared with a rope, and the forklift arm can bear larger loads and be used more frequently. Therefore, not only is the service life of the baby carriage prolonged, but also potential safety hazards caused by damage of parts are reduced. Meanwhile, more accurate lifting control can be achieved through cooperation of the lead screw and the nut, and the problem that the rope is likely to be loosened or blocked is solved. By means of the stable lifting motion, children can better control the forklift arms in the operation process, and playability and operation experience of the baby carriage are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of children's vehicles, and more specifically, to a lifting mechanism for a forklift children's vehicle and a forklift children's vehicle. Background Technology

[0002] Forklift-type toy vehicles, because they have forks similar to those in a real forklift, allow children to interact with other objects using these forks. At the same time, forklift-type toy vehicles can also help young children develop a basic understanding of some professions within the social division of labor.

[0003] Forklift-type toy vehicles, being children's vehicles designed for children, need to be simpler to operate and safer.

[0004] In existing forklift toys, the lifting mechanism typically uses rope traction to achieve its lifting function. However, the safety and stability of the ropes pose significant risks during the use of forklift toys, potentially leading to problems such as sudden breakage, inability to lift or lower, or inability to hover. Summary of the Invention

[0005] This utility model provides a lifting mechanism for a forklift stroller and a forklift stroller in order to solve the problems of the lifting mechanism of the existing forklift stroller being unable to accurately hover and the existence of safety hazards.

[0006] In one aspect, this application provides a lifting mechanism for a forklift stroller, comprising: a fixed seat, a movable seat, a lead screw, a nut, and a forklift arm;

[0007] The lead screw is mounted on the fixed seat, the nut is located on the lead screw and the nut is fixed to the movable seat, the movable seat is fixed with a forklift arm, and the movable seat changes position relative to the fixed seat as the position of the nut on the lead screw changes;

[0008] The fixed base also includes a transmission device, which controls the rotation of the lead screw to achieve the lifting and lowering movement of the nut relative to the fixed base.

[0009] This system, using a lead screw, nut, and transmission mechanism, enables precise up-and-down movement of the forklift arm. The lead screw and nut structure is more durable than ropes, capable of withstanding greater loads and more frequent use. This not only extends the lifespan of the forklift but also reduces safety hazards caused by component damage. Simultaneously, the cooperation of the lead screw and nut allows for more precise lifting control, avoiding the slackness or jamming issues that can occur with ropes. This stable lifting motion allows children to better control the forklift arm during operation, enhancing the playability and user experience of the forklift. Secondly, the transmission mechanism simplifies lifting operations. Children can easily control the transmission mechanism to raise and lower the forklift arm, eliminating the need for complex rope operations and reducing the difficulty of operation, making forklifts using this lifting mechanism more suitable for children.

[0010] Furthermore, the movable seat changes position relative to the fixed seat as the nut's position on the lead screw changes, specifically as follows:

[0011] The movable seat includes a guide rod connected to the fixed seat and a connecting part connected to the nut;

[0012] The guide rod of the movable seat is slidably connected to the fixed seat;

[0013] When the transmission device controls the lead screw to rotate, the nut moves up and down according to the rotation direction of the lead screw, thereby driving the movable seat to move up and down in the guide rail.

[0014] This design of the guide rod and guide rail reduces wear between components, further extending the toy's lifespan. The sliding connection between the guide rod and the fixed base effectively restricts the movement of the movable seat, preventing tilting or deviation during lifting and lowering, thus avoiding injury to children due to forklift arm instability. This structure further ensures child safety in case of problems with the nut and lead screw, and also increases the durability of the lifting mechanism.

[0015] Furthermore, the fixed base also includes a transmission device, specifically: the transmission device is a gearbox;

[0016] The output end of the gearbox is connected to one end of the lead screw; the gearbox is connected to the power module, and when the gearbox is powered on, it drives the lead screw to rotate; when the gearbox is powered off, the lead screw is fixed and does not rotate.

[0017] The gearbox can control the rotation direction and speed of the lead screw according to the direction and / or magnitude of the received current.

[0018] This design connects the output of the gearbox to the lead screw, allowing it to rotate when energized and remain stationary when power is off. This improves the safety and stability of the lifting mechanism, preventing accidental lifting or stopping due to power outages. Furthermore, the gearbox can control the direction and speed of the lead screw's rotation based on the direction and magnitude of the received current, making lifting operations more flexible and precise. This better meets children's needs during operation, enhancing the toy's playability and user experience. In addition, the gearbox simplifies the transmission system design, making the entire lifting mechanism more compact and reliable, further improving the toy's durability and lifespan.

[0019] Furthermore, the movable seat includes a guide rod connected to the fixed seat and a connecting part connected to the nut, specifically:

[0020] The movable seat includes at least two guide rods and at least two connecting parts, the guide rods and connecting parts forming a rectangular shape;

[0021] The two connecting parts are the upper connecting part and the lower connecting part, with the upper connecting part located at the top of the two guide rods and the lower connecting part located at the lower half of the two guide rods;

[0022] The lower connecting part is fixedly connected to the nut. When the nut moves up and down, the nut drives the movable seat to move synchronously through the lower connecting part.

[0023] By setting at least two guide rods and connecting parts and forming them into a rectangular shape, a stable structural frame is created, enhancing the overall rigidity and torsional resistance of the movable seat during lifting and lowering. This effectively prevents deformation or swaying of the movable seat during movement, thereby improving the stability and reliability of the lifting mechanism. The layout of the upper and lower connecting parts makes the connection between the nut and the movable seat more rational. The lower connecting part is fixedly connected to the nut, directly converting the up-and-down movement of the nut into synchronous movement of the movable seat. The transmission path is simple and efficient, reducing energy loss and potential failure points. This design also facilitates assembly and maintenance. The rectangular structure of the movable seat makes it easier to ensure the alignment and precision of each component during manufacturing and installation, reducing production costs and maintenance difficulty.

[0024] Furthermore, the forklift arm includes: a bracket, forks, and a pallet.

[0025] The fork arm is fixedly connected to the movable seat; the fork arm is detachably connected to the tray and bracket.

[0026] The bracket is parallel to the lead screw, and the bracket is perpendicular to the tray.

[0027] This design, with the fork arm fixedly connected to the movable seat and detachably connected to the pallet and bracket, makes assembly and disassembly of the forklift arm more convenient. It also facilitates the replacement of pallets and brackets of different sizes or styles, increasing the toy's playability and versatility. The bracket is parallel to the lead screw and perpendicular to the pallet; this layout provides better stability and load-bearing capacity during lifting, allowing for smoother lifting of items and improving the toy's user experience and safety.

[0028] Furthermore, the fixing base includes: at least two guide rails, a baffle, and a fixing member;

[0029] The fastener is located at the top of the fixing base and at the other end of the connecting screw;

[0030] The transmission device is located at the bottom of the fixed base, and the transmission device, the fixed component and the two guide rails form a rectangle;

[0031] The baffle is connected to two guide rails and covers one side of the rectangle; the fixed seat is slidably connected to the guide rod of the movable seat through the guide rails.

[0032] This design, with at least two guide rails slidingly connected to the guide rod of the movable seat, ensures the stability and linear motion accuracy of the movable seat during lifting, preventing it from shifting or wobbling during movement, thus improving the reliability and safety of the lifting mechanism. A baffle connected to the guide rails covers one side of the rectangle; this design not only increases the structural strength of the fixed seat but also provides protection, preventing accidental contact or damage to critical components such as the internal transmission device and lead screw by external objects. The fixing component is located at the top of the fixed seat, connecting to the other end of the lead screw, while the transmission device is located at the bottom of the fixed seat. This layout makes the entire lifting mechanism more compact, the transmission path more rational, and helps reduce energy loss and improve transmission efficiency.

[0033] Secondly, this application provides a forklift cart, including: a moving mechanism, a handle, a power module, and a lifting mechanism;

[0034] The moving mechanism is used to control the moving direction and speed of the forklift cart;

[0035] The power module supplies power to the lifting mechanism via a handle, which controls the lifting and lowering of the forklift arm in the lifting mechanism.

[0036] The lifting mechanism of the forklift cart is the same as the lifting mechanism described in the first aspect.

[0037] Furthermore, the handle controls the raising and lowering of the forklift arm in the lifting mechanism, specifically as follows:

[0038] The handle includes an upper gear, a middle gear, and a lower gear;

[0039] When the handle is in the upper or lower position, the power module supplies power to the transmission device in the lifting mechanism;

[0040] When the handle is in the middle position, the power module stops supplying power to the transmission device in the lifting mechanism.

[0041] Furthermore, the power module also includes a switch module, which is connected to the power module and is used to control the power module to supply power to the lifting mechanism and the moving mechanism.

[0042] Furthermore, the moving mechanism includes a steering wheel and wheels; the steering wheel is used to control the rotation speed and direction of the wheels.

[0043] This design, through the coordinated operation of the moving mechanism, handle, power module, and lifting mechanism, achieves comprehensive control of the forklift toy, including direction, speed, and lifting / lowering of the forklift arm. This allows children to intuitively experience the operation of a forklift, enhancing the toy's interactivity and fun. The handle's gear design makes operation simple and intuitive; the upper and lower gears correspond to raising and lowering the forklift arm, respectively, while the middle gear cuts off power. This design not only reduces operational difficulty but also improves safety, preventing accidental lifting / lowering due to misoperation. The power module's switch effectively controls power supply, ensuring stable power for the lifting and moving mechanisms when needed, while cutting off power when not in use, extending battery life and improving safety. The steering wheel and wheel design of the moving mechanism allow children to easily control the forklift's direction and speed. The steering wheel's operation is more child-friendly, improving driving stability and maneuverability. The overall design not only enhances the toy's playability and user experience but also ensures safety and durability through a reasonable structural layout and functional allocation, making it suitable for long-term use by children. Attached Figure Description

[0044] Figure 1 This is a front perspective view of the overall structure of an embodiment of the lifting mechanism for a forklift stroller provided by this utility model.

[0045] Figure 2 : A schematic diagram of the movable seat after it has been lowered in one embodiment of the lifting mechanism of a forklift stroller provided by this utility model;

[0046] Figure 3 This is a side-rear perspective view of an embodiment of the lifting mechanism for a forklift stroller provided by this utility model.

[0047] Figure 4 : A schematic diagram of the movable seat being raised in one embodiment of the lifting mechanism of a forklift stroller provided by this utility model;

[0048] Figure 5 : A schematic diagram of a nut and lead screw in one embodiment of a forklift lifting mechanism provided by this utility model;

[0049] Figure 6 This is a schematic diagram of the overall structure of one embodiment of a forklift-mounted children's stroller provided by this utility model.

[0050] The reference numerals in the attached drawings are as follows: 1. Fixed seat; 2. Movable seat; 3. Lead screw; 4. Nut; 5. Forklift arm; 6. Transmission device; 7. Guide rod; 8. Connecting part; 9. Upper connecting part; 10. Lower connecting part; 11. Bracket; 12. Fork arm; 13. Pallet; 14. Guide rail; 15. Baffle; 16. Fixture; 17. Steering wheel; 18. Wheel; 19. Lifting mechanism. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0052] Example 1

[0053] Reference Figure 1 and Figure 2 This utility model embodiment provides a lifting mechanism for a forklift stroller, including: a fixed seat 1, a movable seat 2, a lead screw 3, a nut 4, and a forklift arm 5;

[0054] The lead screw 3 is mounted on the fixed seat 1, the nut 4 is located on the lead screw 3, and the nut 4 is fixed to the movable seat 2. The forklift arm 5 is fixed on the movable seat 2. The movable seat 2 changes position relative to the fixed seat 1 as the position of the nut 4 on the lead screw 3 changes.

[0055] The fixed base 1 also includes a transmission device 6, which controls the rotation of the lead screw 3 to achieve the lifting and lowering movement of the nut 4 relative to the fixed base 1.

[0056] This system, using a lead screw, nut, and transmission mechanism, enables precise up-and-down movement of the forklift arm. The lead screw and nut structure is more durable than ropes, capable of withstanding greater loads and more frequent use. This not only extends the lifespan of the forklift but also reduces safety hazards caused by component damage. Simultaneously, the cooperation of the lead screw and nut allows for more precise lifting control, avoiding the slackness or jamming issues that can occur with ropes. This stable lifting motion allows children to better control the forklift arm during operation, enhancing the playability and user experience of the forklift. Secondly, the transmission mechanism simplifies lifting operations. Children can easily control the transmission mechanism to raise and lower the forklift arm, eliminating the need for complex rope operations and reducing the difficulty of operation, making forklifts using this lifting mechanism more suitable for children.

[0057] Reference Figure 2 and Figure 4 In a preferred embodiment, the movable seat 2 changes position relative to the fixed seat 1 as the position of the nut 4 on the lead screw 3 changes, specifically as follows:

[0058] The movable seat 2 includes a guide rod 7 connected to the fixed seat 1 and a connecting part 8 connected to the nut 4;

[0059] The guide rod 7 of the movable seat 2 is slidably connected to the fixed seat 1;

[0060] Reference Figure 5 When the transmission device 6 controls the lead screw 3 to rotate, the nut 4 moves up and down according to the rotation direction of the lead screw 3, thereby driving the movable seat 2 to move up and down.

[0061] This guide rod design reduces wear between components, further extending the toy's lifespan. The sliding connection between the guide rod and the fixed base effectively restricts the movement of the movable seat, preventing tilting or deviation during lifting and lowering, thus avoiding injury to children due to forklift arm instability. This structure further ensures child safety in case of problems with the nut and lead screw, and also increases the durability of the lifting mechanism.

[0062] Reference Figure 3 In a preferred embodiment, the fixed base 1 further includes a transmission device 6, specifically: the transmission device 6 is a gearbox;

[0063] The output end of the gearbox is connected to one end of the lead screw 3; the gearbox is connected to the power module, and when the gearbox is powered on, it drives the lead screw 3 to rotate; when the gearbox is powered off, the lead screw is fixed and does not rotate.

[0064] The gearbox can control the rotation direction and speed of the lead screw 3 according to the direction and / or magnitude of the received current.

[0065] This design connects the output of the gearbox to the lead screw, allowing it to rotate when energized and remain stationary when power is off. This improves the safety and stability of the lifting mechanism, preventing accidental lifting or stopping due to power outages. Furthermore, the gearbox can control the direction and speed of the lead screw's rotation based on the direction and magnitude of the received current, making lifting operations more flexible and precise. This better meets children's needs during operation, enhancing the toy's playability and user experience. In addition, the gearbox simplifies the transmission system design, making the entire lifting mechanism more compact and reliable, further improving the toy's durability and lifespan.

[0066] Reference Figure 4 In a preferred embodiment, the movable seat 2 includes a guide rod 7 connected to the fixed seat 1 and a connecting part 8 connected to the nut 4, specifically:

[0067] The movable seat 2 includes at least two guide rods 7 and at least two connecting parts 8, wherein the guide rods 7 and the connecting parts 8 form a rectangular shape;

[0068] The two connecting parts 8 are an upper connecting part 9 and a lower connecting part 10, with the upper connecting part 9 located at the top of the two guide rods 7 and the lower connecting part 10 located at the lower half of the two guide rods 7.

[0069] The lower connecting part 10 is fixedly connected to the nut 4. When the nut 4 moves up and down, the nut 4 drives the movable seat 2 to move synchronously through the lower connecting part 10.

[0070] By setting at least two guide rods and connecting parts and forming them into a rectangular shape, a stable structural frame is created, enhancing the overall rigidity and torsional resistance of the movable seat during lifting and lowering. This effectively prevents deformation or swaying of the movable seat during movement, thereby improving the stability and reliability of the lifting mechanism. The layout of the upper and lower connecting parts makes the connection between the nut and the movable seat more rational. The lower connecting part is fixedly connected to the nut, directly converting the up-and-down movement of the nut into synchronous movement of the movable seat. The transmission path is simple and efficient, reducing energy loss and potential failure points. This design also facilitates assembly and maintenance. The rectangular structure of the movable seat makes it easier to ensure the alignment and precision of each component during manufacturing and installation, reducing production costs and maintenance difficulty.

[0071] Reference Figure 1 In a preferred embodiment, the forklift arm 5 includes: a bracket 11, a fork arm 12, and a pallet 13;

[0072] The fork arm 12 is fixedly connected to the movable seat 2; the fork arm 12 is detachably connected to the tray 13 and the bracket 11.

[0073] The bracket 11 is parallel to the lead screw 3, and the bracket 11 is perpendicular to the tray 13.

[0074] This design, with the fork arm fixedly connected to the movable seat and detachably connected to the pallet and bracket, makes assembly and disassembly of the forklift arm more convenient. It also facilitates the replacement of pallets and brackets of different sizes or styles, increasing the toy's playability and versatility. The bracket is parallel to the lead screw and perpendicular to the pallet; this layout provides better stability and load-bearing capacity during lifting, allowing for smoother lifting of items and improving the toy's user experience and safety.

[0075] Reference Figure 3 and Figure 4 In a preferred embodiment, the fixing base 1 includes: at least two guide rails 14, a baffle 15, and a fixing member 16;

[0076] The fastener 16 is located at the top of the fixing base 1 and connects to the other end of the lead screw 3;

[0077] The transmission device 6 is located at the bottom of the fixed base 1, and the transmission device 6, the fixing member 16 and the two guide rails 14 form a rectangle;

[0078] The baffle 15 is connected to two guide rails 14 and covers one side of the rectangle; the fixed seat 1 is slidably connected to the guide rod 7 of the movable seat 2 through the guide rails 14.

[0079] This design, with at least two guide rails slidingly connected to the guide rod of the movable seat, ensures the stability and linear motion accuracy of the movable seat during lifting, preventing it from shifting or wobbling during movement, thus improving the reliability and safety of the lifting mechanism. A baffle connected to the guide rails covers one side of the rectangle; this design not only increases the structural strength of the fixed seat but also provides protection, preventing accidental contact or damage to critical components such as the internal transmission device and lead screw by external objects. The fixing component is located at the top of the fixed seat, connecting to the other end of the lead screw, while the transmission device is located at the bottom of the fixed seat. This layout makes the entire lifting mechanism more compact, the transmission path more rational, and helps reduce energy loss and improve transmission efficiency.

[0080] Example 2

[0081] Reference Figure 6 This application provides a forklift child vehicle, including: a moving mechanism, a handle, a power module and a lifting mechanism 19;

[0082] The moving mechanism is used to control the moving direction and speed of the forklift cart;

[0083] The power module supplies power to the lifting mechanism 19 via a handle, and the handle controls the lifting and lowering of the forklift arm 5 in the lifting mechanism 19.

[0084] The lifting mechanism 19 of the forklift stroller is the same as the lifting mechanism in Embodiment 1.

[0085] Furthermore, the handle controls the lifting and lowering of the forklift arm 5 in the lifting mechanism 19, specifically as follows:

[0086] The handle includes an upper gear, a middle gear, and a lower gear;

[0087] When the handle is in the upper or lower position, the power module supplies power to the transmission device 6 in the lifting mechanism 19;

[0088] When the handle is in the middle position, the power module stops supplying power to the transmission device 6 in the lifting mechanism 19.

[0089] Furthermore, the power module also includes a switch module, which is connected to the power module and is used to control the power module to supply power to the lifting mechanism 19 and the moving mechanism.

[0090] Furthermore, the moving mechanism includes a steering wheel 17 and wheels 18; the steering wheel 17 is used to control the rotation speed and rotation direction of the wheels 18.

[0091] This design, through the coordinated operation of the moving mechanism, handle, power module, and lifting mechanism, achieves comprehensive control of the forklift toy, including direction, speed, and lifting / lowering of the forklift arm. This allows children to intuitively experience the operation of a forklift, enhancing the toy's interactivity and fun. The handle's gear design makes operation simple and intuitive; the upper and lower gears correspond to raising and lowering the forklift arm, respectively, while the middle gear cuts off power. This design not only reduces operational difficulty but also improves safety, preventing accidental lifting / lowering due to misoperation. The power module's switch effectively controls power supply, ensuring stable power for the lifting and moving mechanisms when needed, while cutting off power when not in use, extending battery life and improving safety. The steering wheel and wheel design of the moving mechanism allow children to easily control the forklift's direction and speed. The steering wheel's operation is more child-friendly, improving driving stability and maneuverability. The overall design not only enhances the toy's playability and user experience but also ensures safety and durability through a reasonable structural layout and functional allocation, making it suitable for long-term use by children.

[0092] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model by those skilled in the art should be included within the scope of protection of this utility model.

Claims

1. A lifting mechanism for a fork-lift stroller, comprising: The utility model relates to a kind of fork-lift truck baby carriage, including: Fixed seat, movable seat, screw rod, nut and fork-lift arm; The screw rod is installed on the fixed seat, the nut is located on the screw rod, and the nut is fixed with the movable seat, the movable seat is fixed with the fork-lift arm, and the position of movable seat changes with the position of nut on screw rod to realize the position change relative to fixed seat; Wherein, the fixed seat further includes transmission device, and the transmission device controls the rotation of screw rod to realize the lifting movement of nut relative to fixed seat.

2. The lift mechanism for a forklift stroller according to claim 1, wherein, The movable seat changes the position relative to the fixed seat with the position change of the nut on the screw rod, specifically: The movable seat includes guide rod connected with the fixed seat and connecting part connected with the nut; The guide rod of the movable seat is slidingly connected with the fixed seat; When the transmission device controls the rotation of screw rod, the nut moves up and down according to the rotation direction of screw rod, thereby driving the movable seat to move up and down in the guide rail.

3. The lift mechanism for a forklift stroller according to claim 1, wherein, The fixed seat further includes transmission device, specifically: the transmission device is a wave box; One end of the wave box is connected with the screw rod; the wave box is connected with the power module, and the screw rod is rotated when the wave box is powered on, and the screw rod is fixed and does not rotate when the wave box is powered off; The wave box can control the rotation direction and rotation speed of the screw rod according to the direction and / or size of the received current.

4. The lift mechanism for a forklift stroller according to claim 2, wherein, The movable seat includes guide rod connected with the fixed seat and connecting part connected with the nut, specifically: The movable seat includes at least two guide rods and at least two connecting parts, and the guide rods and connecting parts form a rectangular shape; The two connecting parts are upper connecting part and lower connecting part respectively, and the upper connecting part is located at the top of the two guide rods, and the lower connecting part is located at the lower half of the two guide rods; Wherein, the lower connecting part is fixedly connected with the nut, and when the nut moves up and down, the nut drives the movable seat to move synchronously through the lower connecting part.

5. The lift mechanism for a forklift stroller according to claim 1, wherein, The fork-lift arm includes: bracket, fork arm and tray The fork arm is fixedly connected with the movable seat; the fork arm is detachably connected with the tray and the bracket; The bracket is parallel to the screw rod, and the bracket and the tray are perpendicular to each other.

6. The lift mechanism for a stroller of claim 1, wherein, The fixed seat includes: at least two guide rails, baffle and fixing part; The fixing part is located at the top of the fixed seat and connects the other end of the screw rod; The transmission device is located at the bottom of the fixed seat, and the transmission device, the fixing part and the two guide rails form a rectangle; The baffle is connected with the two guide rails and covers one side of the rectangle; the fixed seat is slidingly connected with the guide rods of the movable seat through the guide rails.

7. A fork-lift stroller, characterized by, Including: Moving mechanism, handle, power module and lifting mechanism; The moving mechanism is used to control the moving direction and moving speed of the fork-lift truck baby carriage; The power module supplies power to the lifting mechanism through the handle, and the handle controls the lifting of the fork-lift arm in the lifting mechanism; The lifting mechanism of the fork-lift truck baby carriage is the lifting mechanism in any one of claims 1-6.

8. The stroller of claim 7, wherein, The handle controls the lifting of the fork-lift arm in the lifting mechanism, specifically: The handle includes upper gear position, middle gear position and lower gear position; When the handle is in the upper gear position or the lower gear position, the power module supplies power to the transmission device in the lifting mechanism; When the handle is in the middle gear position, the power module stops supplying power to the transmission device in the lifting mechanism.

9. The stroller of claim 7, wherein, The power module further comprises a switch module connected with the power module, used for controlling the power module to supply power to the lifting mechanism and the moving mechanism.

10. The stroller of claim 7, wherein, The moving mechanism comprises a steering wheel and wheels; the steering wheel is used for controlling the rotating speed and rotating direction of the wheels.

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