Wheel set control method, wheel set structure and baby stroller

Abstract

The invention discloses a wheel set control method, a wheel set structure and a baby stroller, a wheel set comprises a front wheel set and a rear wheel set, the front wheel set and the rear wheel set both have a directional state and a universal state, and the control method comprises the following steps: a signal generation step: sending a control signal; an execution step: generating an execution action after receiving the control signal; and a switching step: controlling the front wheel group and the rear wheel group to be switched between a directional state and a universal state after receiving the execution action. According to the wheel set control method, the wheel set structure and the baby stroller, a large number of traction cable mechanism assemblies are omitted, assembly is easy, efficiency is high, the comprehensive cost is lower, the weight is lighter, the reversing response speed is high, reliability is better, operation is easy, and use by a user is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of wheel sets, and in particular to a wheel set control method, a wheel set structure and a baby stroller. Background Art

[0002] When pushing existing baby strollers, the rear wheels are generally locked while the front wheels are universal for ease of use. Alternatively, both the front and rear wheels can be manually switched between fixed and universal modes. However, after switching directions, the front and rear wheels need to be manually adjusted to the fixed universal mode, which is not only very inconvenient to operate, but also uses a traditional mechanical structure that uses a large number of traction cables with linkage functions to link the push handle switching and the front and rear wheels' universal rotation. This method is complex in structure and requires high precision for the traction cables and their linkage mechanisms. This leads to complex assembly, low production efficiency, low yield rate, low structural reuse, high overall cost, and is prone to malfunction during user use.

[0003] It can be seen that whether it is possible to provide an improved wheel control method, wheel structure and baby stroller based on the deficiencies in the existing technology has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art and provide a wheel group control method, a wheel group structure and a baby stroller.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A wheel set control method, wherein the wheel set includes a front wheel set and a rear wheel set, and the front wheel set and the rear wheel set both have a directional state and a universal state, and the control method comprises the following steps:

[0007] Signal generation step, sending out control signal;

[0008] An execution step, generating an execution action after receiving the control signal;

[0009] A switching step is to control the front wheel group and the rear wheel group to switch between a directional state and a universal state after accepting the execution action.

[0010] Preferably, the control signal includes at least one of the following signals:

[0011] A first control signal, which switches the front wheel set to a universal state and the rear wheel set to a directional state;

[0012] A second control signal, a second control signal for switching both the front wheel set and the rear wheel set to a universal state;

[0013] a third control signal for switching both the front wheel set and the rear wheel set to a directional state;

[0014] The fourth control signal switches the front wheel set to a directional state and switches the rear wheel set to a universal state.

[0015] A wheel structure is controlled using the above control method, the wheel structure comprising:

[0016] The front wheel group has a directional state and a universal state;

[0017] The rear wheel group has a directional state and a universal state;

[0018] A controller, configured to issue a control signal;

[0019] a first electric driver, connected to the controller via an electrical signal, and configured to generate a first execution action after receiving the control signal;

[0020] a second electric driver connected to the controller via an electrical signal and configured to generate a second execution action after receiving the control signal;

[0021] a first switching device, configured to control the front wheel set to switch between a directional state and a universal state after receiving the first execution action;

[0022] The second switching device is used to control the rear wheel group to switch between the directional state and the universal state after receiving the second execution action.

[0023] Preferably, the controller includes a first control gear. When the controller is in the first control gear, the controller sends a first control signal. After the first electric drive receives the first control signal, the first switching device switches the front wheel group to a universal state. After the second electric drive receives the first control signal, the second switching device switches the rear wheel group to a directional state.

[0024] Preferably, the controller also includes a second control gear. When the controller is in the second control gear, the controller sends a second control signal. After the first electric drive receives the second control signal, the first switching device switches the front wheel group to a universal state. After the second electric drive receives the second control signal, the second switching device switches the rear wheel group to a universal state.

[0025] Preferably, the controller also includes a third control gear. When the controller is in the third control gear, the controller sends a third control signal. After the first electric drive receives the third control signal, the first switching device switches the front wheel group to a directional state. After the second electric drive receives the third control signal, the second switching device switches the rear wheel group to a directional state.

[0026] Preferably, the controller also includes a fourth control gear. When the controller is in the fourth control gear, the controller sends a fourth control signal. After the first electric drive receives the fourth control signal, the first switching device switches the front wheel group to a directional state. After the second electric drive receives the fourth control signal, the second switching device switches the rear wheel group to a universal state.

[0027] Preferably, the controller has an automatic reset function, and when the controller is not operated, the controller automatically switches to the first control gear.

[0028] A baby stroller comprises the above-mentioned wheel set structure.

[0029] Preferably, the baby stroller further comprises:

[0030] A handle, wherein the controller is mounted on the handle.

[0031] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0032] The positive progressive effects of the present invention are: the wheel group control method, wheel group structure and baby stroller of the present invention eliminate a large number of traction rope mechanism components, are simple to assemble and highly efficient, have lower overall cost, are lighter in weight, have a fast reversing response speed, are more reliable, and are simple to operate, making them convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Flowchart of a wheel control method according to a preferred embodiment of the present invention.

[0034] Figure 2 It is a structural diagram of the baby stroller of the present invention.

[0035] Figure 3 It is a structural diagram of the front wheel assembly of the present invention.

[0036] Description of reference numerals:

[0037] Front wheel set 1

[0038] Rear wheel set 2

[0039] Controller 3

[0040] First electric drive 4

[0041] First switching device 5 DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] It should be noted that in the claims and description of this patent, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a" does not exclude the presence of other identical elements in the process, method, article or apparatus comprising the element.

[0044] like Figure 1-Figure 3 As shown, this embodiment discloses a wheel group control method, the wheel group includes a front wheel group 1 and a rear wheel group 2, and the front wheel group 1 and the rear wheel group 2 both have a directional state and a universal state, and the control method includes the following steps:

[0045] Signal generation step S1: sending a control signal;

[0046] Execute step S2: generate an execution action after receiving the control signal;

[0047] Switching step S3: After accepting the execution action, the front wheel group 1 and the rear wheel group 2 are controlled to switch between the directional state and the universal state.

[0048] In this embodiment, the control signal includes a first control signal, a second control signal, a third control signal, and a fourth control signal, but is not limited thereto.

[0049] When only the first control signal is received, the front wheel set 1 is switched to a universal state and the rear wheel set 2 is switched to a directional state. When only the second control signal is received, both the front wheel set 1 and the rear wheel set 2 are switched to a universal state. When only the third control signal is received, both the front wheel set 1 and the rear wheel set 2 are switched to a directional state. When only the fourth control signal is received, the front wheel set is switched to a directional state and the rear wheel set is switched to a universal state.

[0050] like Figure 2 and Figure 3 As shown, this embodiment further discloses a wheel set structure and a baby stroller using the wheel set structure, and the controller 3 is installed on the handle of the baby stroller.

[0051] The wheel set structure of this embodiment includes a front wheel set 1, a rear wheel set 2, a controller 3, a first electric drive 4, a second electric drive, a first switching device 5 and a second switching device.

[0052] Both the front wheel group 1 and the rear wheel group 2 have a directional state and a universal state. The controller 3 is used to send control signals, and the control signals include: a first control signal, a second control signal, and a third control signal. The first electric drive 4 and the controller 3 can be connected by wire or wirelessly, and the first electric drive 4 is used to generate a first execution action after receiving the control signal. The second electric drive and the controller 3 can be connected by wire or wirelessly, and the second electric drive is used to generate a second execution action after receiving the control signal. The first switching device 5 is used to control the front wheel group 1 to switch between the directional state and the universal state after receiving the first execution action. The second switching device is used to control the rear wheel group 2 to switch between the directional state and the universal state after receiving the second execution action.

[0053] Furthermore, in this embodiment, the controller 3 includes a first control gear, a second control gear and a third control gear.

[0054] When the controller 3 is in the first control gear, the controller 3 sends a first control signal. After the first electric driver 4 receives the first control signal, the first switching device 5 switches the front wheel set 1 to a universal state. After the second electric driver receives the first control signal, the second switching device switches the rear wheel set 2 to a directional state. At this time, the wheel sets and the baby stroller are in normal use.

[0055] When the controller 3 is in the second control position, the controller 3 sends a second control signal. After the first electric driver 4 receives the second control signal, the first switching device 5 switches the front wheel set 1 to a universal state. After the second electric driver receives the second control signal, the second switching device switches the rear wheel set 2 to a universal state. In this way, the wheel sets and the baby stroller can be freely moved in a small space, making it convenient to use.

[0056] When controller 3 is in the third control position, it issues a third control signal. Upon receiving the third control signal, first electric actuator 4 causes first switching device 5 to switch front wheel set 1 to a directional position. Upon receiving the third control signal, second electric actuator 4 causes second switching device 5 to switch rear wheel set 2 to a directional position. At this point, all four wheels of front and rear wheel sets 2 are simultaneously locked, forcing the vehicle to move only in a straight line. This makes the vehicle suitable for use in special road conditions, such as slopes and snowy terrain, enhancing safety and convenience in these situations.

[0057] When the controller 3 is in the fourth control gear, the controller 3 sends a fourth control signal. After the first electric drive 4 receives the fourth control signal, the first switching device 5 switches the front wheel set to a directional state. After the second electric drive receives the fourth control signal, the second switching device switches the rear wheel set 2 to a universal state. This facilitates the reverse pushing of the stroller.

[0058] Furthermore, the controller 3 of this embodiment has an automatic reset function. When the controller 3 is not operated, the controller 3 automatically switches to the first control gear.

[0059] Furthermore, in this embodiment, the first and second electric drive devices each include two transmission members, and their motion trajectories are configured to be opposite to each other, thereby enabling simultaneous execution of two actions in opposite directions. Upon receiving a control signal, the first and second electric drive devices drive the two transmission members to move in opposite directions, thereby controlling the wheel state switching device to switch the states of the front wheel assembly 1 and the rear wheel assembly 2.

[0060] Specifically, in this embodiment, the first switching device 5 includes a limit pin, which is rigidly or flexibly connected to the transmission member. When the transmission member moves in the direction close to the wheel, it will drive the limit pin to be inserted into the corresponding position of the front wheel group 1, switching the wheel group from a universal state to a directional state. When the transmission member moves in the direction away from the wheel, the limit pin will be pulled out from the corresponding position of the front wheel group 1, thereby switching the wheel group from a directional state to a universal state. Of course, those skilled in the art should understand that in other embodiments, the first switching device 5 can also use other locking and unlocking devices to achieve switching of the wheel group state. The structure and working principle of the second switching device are the same as those of the first switching device 5, and will not be repeated here.

[0061] The wheel control method, wheel structure and baby stroller of this embodiment eliminate a large number of traction rope mechanism components, are simple to assemble and highly efficient, have lower overall cost, are lighter in weight, have a fast reversing response speed, are more reliable, and are simple to operate, making them convenient for users.

Claims

1. A method for controlling a wheel set, wherein the wheel set comprises a front wheel set and a rear wheel set, wherein both the front wheel set and the rear wheel set have a directional state and a universal state, wherein: The control method comprises the following steps: Signal generation step, sending out control signals; An execution step, generating an execution action after receiving the control signal; A switching step is to control the front wheel group and the rear wheel group to switch between a directional state and a universal state after accepting the execution action.

2. The wheel control method according to claim 1, wherein: The control signal includes at least one of the following signals: A first control signal, which switches the front wheel set to a universal state and the rear wheel set to a directional state; A second control signal; a second control signal for switching both the front wheel set and the rear wheel set to a universal state; a third control signal for switching both the front wheel set and the rear wheel set to a directional state; The fourth control signal switches the front wheel set to a directional state and switches the rear wheel set to a universal state.

3. A wheel structure, characterized in that: It is controlled using the control method according to claim 1 or 2, and the wheel structure includes: The front wheel group has a directional state and a universal state; The rear wheel group has a directional state and a universal state; A controller, configured to issue a control signal; a first electric driver, configured to generate a first execution action after receiving the control signal; a second electric driver, configured to generate a second execution action after receiving the control signal; a first switching device, configured to control the front wheel set to switch between a directional state and a universal state after receiving the first execution action; The second switching device is used to control the rear wheel group to switch between the directional state and the universal state after receiving the second execution action.

4. The wheel set structure according to claim 3, characterized in that: The controller includes a first control gear. When the controller is in the first control gear, the controller sends a first control signal. After the first electric drive receives the first control signal, the first switching device switches the front wheel group to a universal state. After the second electric drive receives the first control signal, the second switching device switches the rear wheel group to a directional state.

5. The wheel set structure according to claim 4, characterized in that: The controller also includes a second control gear. When the controller is in the second control gear, the controller sends a second control signal. After the first electric drive receives the second control signal, the first switching device switches the front wheel group to a universal state. After the second electric drive receives the second control signal, the second switching device switches the rear wheel group to a universal state.

6. The wheel set structure according to claim 5, characterized in that: The controller also includes a third control gear. When the controller is in the third control gear, the controller sends a third control signal. After the first electric drive receives the third control signal, the first switching device switches the front wheel group to a directional state. After the second electric drive receives the third control signal, the second switching device switches the rear wheel group to a directional state.

7. The wheel set structure according to claim 6, characterized in that: The controller also includes a fourth control gear. When the controller is in the fourth control gear, the controller sends a fourth control signal. After the first electric drive receives the fourth control signal, the first switching device switches the front wheel group to a directional state. After the second electric drive receives the fourth control signal, the second switching device switches the rear wheel group to a universal state.

8. The wheel set structure according to claim 7, characterized in that: The controller has an automatic reset function, and when the controller is not operated, the controller automatically switches to the first control gear.

9. A baby stroller, characterized in that: The invention comprises a wheel set structure as described in any one of claims 3 to 8.

10. The baby stroller according to claim 9, wherein: Also includes: A handle, wherein the controller is mounted on the handle.

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