Auxiliary wheel of electric baby carriage and electric baby carriage

Abstract

The utility model provides an electric baby carriage auxiliary wheel and an electric baby carriage. The electric baby carriage auxiliary wheel comprises a mounting base, a wheel carrier, a rotating wheel and an extension spring, a clamping seat is arranged on the mounting base, and a hinge hole, a vertical bayonet and a transverse bayonet are formed in the clamping seat; a hinge hole and a kidney-shaped clamping hole are formed in the wheel frame, the wheel frame is connected with the rotating wheel, a hinge shaft is arranged in the hinge hole of the clamping seat and the hinge hole of the wheel frame in a penetrating mode, a clamping shaft is arranged in the clamping hole in a penetrating mode and can move up and down along the clamping hole, and the two ends of the extension spring are connected with the hinge shaft and the clamping shaft respectively. The clamping shaft is clamped into the vertical clamping opening or the transverse clamping opening in a switchable mode, when the clamping shaft is clamped into the vertical clamping opening, the auxiliary wheel is in an open state, when the clamping shaft is clamped into the transverse clamping opening, the auxiliary wheel is in a folded state, when the auxiliary wheel is installed on the baby carriage, the auxiliary wheel can provide a supporting function, deviation during running of the baby carriage is avoided, and the baby carriage is convenient to use. And the safety and the user driving experience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, and in particular to an auxiliary wheel for an electric baby carriage and an electric baby carriage. Background Art

[0002] At present, children's cars on the market, such as dual-purpose shovel and digger children's cars, often do not have support wheels on the excavator side. When the vehicle is traveling on a complex road surface (such as grass), the pedals may rub against the ground, causing the vehicle to shake violently, and the vehicle may easily shift or even overturn, affecting the user's driving experience. Utility Model Content

[0003] The utility model aims to provide an electric baby stroller auxiliary wheel which can prevent the vehicle from deviating when in use and can be folded when not in use, and is convenient for users to use, and an electric baby stroller using the electric baby stroller auxiliary wheel.

[0004] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0005] The utility model provides an auxiliary wheel for an electric baby stroller, comprising a mounting base, a wheel frame, a rotating wheel and a tension spring; the mounting base is used to be mounted on the main body of the electric baby stroller, the mounting base is provided with a clamping seat, the clamping seat is provided with a first hinge hole, a vertical clamping slot and a horizontal clamping slot; one end of the wheel frame is arranged with a second hinge hole and a clamping hole along its length direction; the second hinge hole is arranged at a position corresponding to the first hinge hole, the first hinge hole and the second hinge hole are penetrated by a hinge shaft, the clamping hole is a waist-shaped hole, a clamping shaft is penetrated therein and the clamping shaft can move up and down along the clamping hole, the clamping shaft can switchably clamp into the vertical clamping slot or the horizontal clamping slot, when the clamping shaft is clamped into the vertical clamping slot, the auxiliary wheel is in an open state, and when the clamping shaft is clamped into the horizontal clamping slot, the auxiliary wheel is in a folded and retracted state; the rotating wheel is mounted on the other end of the wheel frame and can rotate relative to the wheel frame; the two ends of the tension spring are respectively connected to the hinge shaft and the clamping shaft.

[0006] In one embodiment, the connector is provided with an arc-shaped transition portion between the vertical connector and the horizontal connector.

[0007] In one embodiment, the auxiliary wheels of the electric baby stroller further include a pair of pull rods, which are installed on both sides of the wheel frame, and one end of the pull rod close to the rotating wheel is bent to form a pull handle.

[0008] In one embodiment, the wheel frame is provided with a mounting hole, and the pull rod is provided with a long buffer hole corresponding to the mounting hole, and the rotating shaft of the rotating wheel passes through the mounting hole and is inserted into the buffer hole and can slide along the buffer hole; the pull rod is also provided with a card shaft fixing hole corresponding to the card shaft, and the card shaft passes through the card hole and is inserted into the card shaft fixing hole.

[0009] In one embodiment, the wheel frame includes a pair of mounting plates arranged opposite to each other and a connecting plate connected between the mounting plates, and a clamping groove for the rotating wheel to be embedded is defined between the pair of mounting plates.

[0010] In one embodiment, the mounting base includes a base formed by multiple bends, a mounting plane is formed on the base, a backrest is formed on one side of the mounting plane, the clamping seat is arranged on the mounting plane and one side abuts against the backrest, and the transverse clamping slot is opened on the side of the clamping seat away from the backrest.

[0011] In one embodiment, the articulated shaft and the clamping shaft are both screw-nut assemblies. By adopting the screw-nut assemblies, the installation and maintenance of the articulated shaft and the clamping shaft are facilitated.

[0012] The utility model also provides an electric baby stroller, comprising a body and a digging arm assembly detachably connected to the body, wherein the digging arm assembly comprises a rear digging arm seat, and the rear digging arm seat is provided with the above-mentioned auxiliary wheels of the electric baby stroller.

[0013] The technical solution provided by the utility model has the following beneficial effects: in the auxiliary wheels for the electric baby carriage of the utility model, the wheel frame is hinged with the card seat, and the card shaft of the wheel frame can be switchably carded into the vertical card slot or the horizontal card slot, so that the auxiliary wheels have an open state when in use and a folded and stowed state when not in use. When the auxiliary wheels are installed on the baby carriage, the auxiliary wheels can provide support to avoid deviation when the vehicle is driving, thereby improving safety and enhancing the user's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention.

[0015] Figure 1 A schematic diagram of the structure of an electric baby carriage auxiliary wheel provided by an embodiment of the utility model installed on a rear arm seat, wherein the auxiliary wheel is shown in an open use state;

[0016] Figure 2 A schematic diagram of the structure of an electric baby stroller provided by an embodiment of the utility model, in which auxiliary wheels are installed on a rear arm seat in another use state, wherein the auxiliary wheels are in a folded and stowed state;

[0017] Figure 3 for Figure 1 A schematic diagram of the partial structure of the electric baby stroller with auxiliary wheels installed on the rear arm seat;

[0018] Figure 4 An exploded view of auxiliary wheels for an electric baby carriage provided by an embodiment of the utility model;

[0019] Figure 5 A cross-sectional view of an electric baby carriage auxiliary wheel provided by an embodiment of the utility model installed on a rear arm seat. DETAILED DESCRIPTION

[0020] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0021] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.

[0022] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0023] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0024] See also Figures 1 to 5 The utility model relates to an auxiliary wheel for an electric baby stroller (hereinafter referred to as "auxiliary wheel"), which has two use states: open and folded, and is suitable for electric baby strollers. It provides a certain support for the electric baby stroller to prevent the vehicle from deviating due to the pedals touching the ground when the vehicle is traveling on a complex road surface, thereby ensuring driving safety and improving the driving experience. In addition, an electric baby stroller using the auxiliary wheel is also provided, such as a shoveling and digging dual-purpose baby stroller, which includes a body, a shovel system installed at the front end of the body, and a digging arm assembly detachably installed at the rear end of the body, wherein the digging arm assembly includes a rear digging arm seat 10, and the auxiliary wheel is installed under the rear digging arm seat.

[0025] The auxiliary wheel 20 includes a mounting base, a wheel frame 23 , a rotating wheel 22 and a tension spring 25 .

[0026] The mounting base is used to be mounted on the main body of the electric baby carriage. A clamping seat 21 is provided on the mounting base. The clamping seat 21 is provided with a first hinge hole 210 , a horizontal clamping socket 211 and a vertical clamping socket 212 .

[0027] A second hinge hole 231 and a clamping hole 232 are arranged along the length direction of one end of the wheel frame 23, and the second hinge hole 231 is arranged corresponding to the first hinge hole 210. A hinge shaft 24 passes through the first hinge hole and the second hinge hole 231 to connect the wheel frame 23 with the clamping seat 21 and enable the wheel frame 23 to rotate relative to the clamping seat 21. The clamping hole 232 is a waist-shaped hole, in which a clamping shaft 26 is passed and the clamping shaft can move up and down along the clamping hole. The clamping shaft 26 can be switchably clamped into the vertical clamping hole 212 or the horizontal clamping hole 211, wherein, when the clamping shaft is clamped into the vertical clamping hole 212, the auxiliary wheel is in an open state, and when the clamping shaft is clamped into the horizontal clamping hole, the auxiliary wheel is in a folded and retracted state.

[0028] The rotating wheel 22 is rotatably mounted on the other end of the wheel frame 23. When the auxiliary wheels are opened, the rotating wheel 22 is lowered and supported on the road surface and can roll relative to the road surface, providing support and buffering functions during vehicle driving. When the auxiliary wheels are folded and retracted, there is a gap between the rotating wheel 22 and the road surface.

[0029] The two ends of the tension spring 25 are respectively connected to the hinge shaft 24 and the clamping shaft 26. When the clamping shaft is clamped into the horizontal or vertical clamping mouth, a certain pulling force is applied to the clamping shaft 26 to prevent the clamping shaft 26 from automatically rotating out of the clamping mouth, that is, realizing the locking function.

[0030] In the auxiliary wheel of the electric baby stroller of the utility model, the rotating wheel is rotatably mounted on one end of the wheel frame, the other end of the wheel frame is hinged to the clamping seat, and the clamping shaft of the wheel frame can be switchably clamped into the vertical clamping slot or the horizontal clamping slot on the clamping seat, so that the auxiliary wheel has an open state when in use and a folded and stowed state when not in use, and the tension spring realizes a locking effect after the switching is completed. When the auxiliary wheel is installed on the baby stroller, the auxiliary wheel can provide support to prevent the vehicle from deflecting when driving, thereby improving safety and enhancing the user's driving experience.

[0031] In one embodiment, the clamping seat 21 is provided with an arc-shaped transition portion 213 between the vertical clamping socket 212 and the horizontal clamping socket 211 to facilitate the switching of the clamping shaft between the vertical clamping socket and the horizontal clamping socket.

[0032] In one embodiment, the auxiliary wheels of the electric stroller further include a pair of pull rods 27, which are installed on opposite sides of the wheel frame 23. The ends of the pull rods 27 close to the rotating wheel 22 are bent backwards to form a pair of pull handles 271. The pull handles 27 can facilitate the user to apply force to pull the wheel frame to disengage the clamping shaft from the clamping port, and then switch between the two clamping ports.

[0033] In one embodiment, a mounting hole 233 is provided at the end of the wheel frame 23, and the pull rod 27 is provided with a long buffer hole 272 corresponding to the mounting hole. The rotating shaft 28 of the rotating wheel 22 passes through the mounting hole and is inserted into the buffer hole and can slide along the buffer hole 272. The pull rod 27 is also provided with a card shaft fixing hole 273 corresponding to the card shaft 26, and the card shaft 26 passes through the card hole 232 and is inserted into the card shaft fixing hole 273.

[0034] In one embodiment, the wheel frame 23 includes a pair of mounting plates 230 disposed opposite to each other and a connecting plate connected between the mounting plates. A clamping groove for the rotating wheel to be embedded is defined between the pair of mounting plates 230 .

[0035] In one embodiment, the mounting base includes a base 29 formed by multiple bends, a mounting plane is formed on the base 29, and a backrest is arranged on one side of the mounting plane, the clamping seat 21 is arranged on the mounting plane and one side is against the backrest, and the transverse clamping slot 211 is arranged on the side of the clamping seat 21 away from the backrest.

[0036] In one embodiment, the articulated shaft and the clamping shaft are both screw-nut assemblies. By adopting the screw-nut assemblies, the installation and maintenance of the articulated shaft and the clamping shaft are facilitated.

[0037] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the above utility model. For example, the above features are replaced with the technical features of the utility model (but not limited to) with similar functions in the utility model of the utility model to form a technical solution.

[0038] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. An electric baby stroller training wheel, characterized in that: It includes a mounting base, a wheel frame, a rotating wheel and a tension spring; The mounting base is used to be mounted on the main body of the electric baby carriage, and a clamping seat is provided on the mounting base, and the clamping seat is provided with a first hinge hole, a vertical clamping socket and a horizontal clamping socket; A second hinge hole and a clamping hole are arranged along the length direction of one end of the wheel frame; the second hinge hole is arranged at a position corresponding to the first hinge hole, a hinge shaft is passed through the first hinge hole and the second hinge hole, the clamping hole is a waist-shaped hole, a clamping shaft is passed through the inside of the hole and the clamping shaft can move up and down along the clamping hole, the clamping shaft can be switchably clamped into the vertical bayonet or the horizontal bayonet, when the clamping shaft is clamped into the vertical bayonet, the auxiliary wheel is in an open state, and when the clamping shaft is clamped into the horizontal bayonet, the auxiliary wheel is in a folded and stowed state; The rotating wheel is mounted on the other end of the wheel frame and can rotate relative to the wheel frame; The two ends of the tension spring are respectively connected to the hinge shaft and the clamping shaft.

2. The auxiliary wheel for an electric baby carriage according to claim 1, characterized in that: The clamping seat is provided with an arc-shaped transition portion between the vertical clamping socket and the horizontal clamping socket.

3. The auxiliary wheel for an electric baby carriage according to claim 2, characterized in that: It also includes a pair of pull rods, which are installed on both sides of the wheel frame, and one end of the pull rod close to the rotating wheel is bent to form a pull handle.

4. The auxiliary wheel for an electric baby carriage according to claim 3, characterized in that: The wheel frame is provided with a mounting hole, and the pull rod is provided with a long strip buffer hole corresponding to the mounting hole. The rotating shaft of the rotating wheel passes through the mounting hole and is inserted into the buffer hole and can slide along the buffer hole; the pull rod is also provided with a card shaft fixing hole corresponding to the card shaft, and the card shaft passes through the card connection hole and is inserted into the card shaft fixing hole.

5. The auxiliary wheel for an electric baby carriage according to claim 1, characterized in that: The wheel frame comprises a pair of mounting plates arranged opposite to each other and a connecting plate connected between the mounting plates. A clamping groove into which the rotating wheel can be embedded is defined between the pair of mounting plates.

6. The auxiliary wheel for an electric baby carriage according to claim 1, characterized in that: The mounting base comprises a base formed by multiple bends, a mounting plane is formed on the base, a backrest is formed on one side of the mounting plane, the clamping seat is arranged on the mounting plane and one side abuts against the backrest, and the transverse clamping slot is opened on the side of the clamping seat away from the backrest.

7. The auxiliary wheel for an electric baby carriage according to claim 1, characterized in that: The articulated shaft and the clamping shaft are both screw and nut assemblies.

8. An electric baby stroller, comprising a body and a digging arm assembly detachably connected to the body, the digging arm assembly comprising a rear digging arm seat, characterized in that: The rear arm seat is provided with an auxiliary wheel for the electric baby carriage as claimed in any one of claims 1 to 7.

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