Front wheel rotation linkage structure of baby carriage

Abstract

The front wheel rotation linkage structure comprises a frame and a front wheel assembly, the upper portion of the front wheel assembly is provided with a connecting assembly used for being rotationally connected with a front wheel seat of the frame, a push handle seat is arranged at a push handle of the frame, and an operation handle capable of rotating relative to the push handle seat is arranged on the push handle seat. The operating handle is in linkage connection with the connecting assembly of the front wheel assembly through a traction cable assembly. The problem that front wheels of an existing stroller are not easy to steer is solved, left-right synchronous rotation of the front wheels can be achieved by rotating the operation handle, the structure is simple and novel, and operation is convenient.

Description

Technical Field

[0001] This application relates to the field of children's vehicle technology, and in particular to a front wheel rotation linkage structure for children's vehicles. Background Technology

[0002] Strollers are an essential mode of transportation for every family with children. For ease of carrying and transport, most strollers on the market are currently foldable. Existing strollers generally have a front-wheel steering mechanism that can switch between omnidirectional and front-wheel-oriented modes. However, when in front-wheel-oriented mode, most lack an adjustment mechanism to control the left and right rotation of the front wheels, making it difficult to adjust the direction while riding, sometimes requiring the stroller to be lifted to achieve directional control. Although higher-end strollers are equipped with front-wheel steering mechanisms including a drive motor, these are complex in structure, expensive, and inconvenient to operate. Summary of the Invention

[0003] The purpose of this application is to provide a front wheel rotation linkage structure for a children's vehicle, which has an operating handle on the push handle that is linked to the front wheel assembly. By rotating the operating handle, the front wheel can be rotated synchronously left and right. The structure is simple and novel, and easy to operate.

[0004] The technical solution of this application is: a front wheel rotation linkage structure for a children's vehicle, including a frame and a front wheel assembly. The upper part of the front wheel assembly has a connecting component for rotatably connecting with the front wheel seat of the frame. The push handle of the frame is provided with a push handle seat, and the push handle seat is provided with an operating handle that can rotate relative to it. The operating handle and the connecting component of the front wheel assembly are linked together by a traction cable assembly. The traction cable assembly includes two traction cables, which are arranged alternately between the push handle seat and the front wheel assembly, so that the front wheel assembly rotates in the same direction as the operating handle under the linkage action of the traction cable assembly.

[0005] As a preferred technical solution, the push handle seat is located at the top center of the push handle, and the operating handle is rotatably located above and behind the push handle seat via a rotating shaft; the bottom of the push handle seat has an upper linkage plate fixed coaxially with the operating handle, and the connecting assembly has a lower linkage plate; the traction cable assembly is located between the upper linkage plate and the lower linkage plate.

[0006] As a preferred technical solution, the rotation axis is located on the plane of symmetry center of the vehicle frame.

[0007] As a preferred technical solution, the two traction cables are arranged in an odd-numbered staggered manner; the upper end of one traction cable is connected to the left side of the upper linkage disc and the lower end is connected to the right side of the lower linkage disc; the upper end of the other traction cable is connected to the right side of the upper linkage disc and the lower end is connected to the left side of the lower linkage disc.

[0008] As a preferred technical solution, the upper linkage disc has symmetrically arranged arc-shaped grooves for accommodating two traction cables, and the ends of the two arc-shaped grooves on the same side have locking grooves for engaging the ends of the traction cables; the lower linkage disc includes a collar portion sleeved and fixed on the connecting assembly and a fan-shaped portion extending rearward from the collar portion, the lower ends of the two traction cables being staggered and connected to the left and right sides of the fan-shaped portion. The rear side of the fan-shaped portion of the lower linkage disc has symmetrically arranged inclined grooves for the two traction cables to extend into, and the front ends of the two inclined grooves have limiting grooves for engaging the ends of the traction cables.

[0009] Compared with the prior art, this application has the following advantages: This application solves the problem that the front wheels of existing children's strollers are not easy to turn. It sets up an operating handle on the push handle that is linked to the front wheel assembly. By turning the operating handle, the front wheels can be turned left and right synchronously. The structure is simple and novel and easy to operate. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0012] Figure 1 This is a schematic diagram of the structure of this application;

[0013] Figure 2 This is a schematic diagram of the structure when the operating handle drives the front wheel assembly to rotate to the left in this application;

[0014] Figure 3 This is a schematic diagram of the structure in this application when the handlebar drives the front wheel assembly to rotate to the right.

[0015] Figure 4 This is a simplified structural diagram of the linkage connection between the upper and lower linkage plates in this application.

[0016] The components include: 1. Frame; 101. Push handlebar; 102. Push handlebar mount;

[0017] 2. Front wheel assembly; 201. Lower linkage plate; 2011. Collar ring; 2012. Sector-shaped part; 2013, 2014. Inclined grooves; 2015, 2016. Limiting grooves;

[0018] 3. Operating handle; 301. Upper linkage plate; 3011, 3012. Arc-shaped grooves; 3013, 3014. Slots; 302. Mounting base; 303. Grip cover;

[0019] 4. Traction cable assembly; 401, 402 traction cables. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the described embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It is understood that, without conflict, some technical means of the various embodiments described herein can be substituted for or combined with each other.

[0021] In the description of this application and the claims, the terms "first," "second," etc., are used only to distinguish the described objects and have no sequential or technical meaning. Therefore, objects specified with "first," "second," etc., may explicitly or implicitly include one or more of those objects. Furthermore, the words "one" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one, while "multiple" indicates not less than two.

[0022] In the description of this application and the claims, the terms "connection," "installation," "fixation," and "reception," unless otherwise specified, should be interpreted broadly. For example, "connection" can mean a separate connection or an integral connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean a non-detachable connection or a detachable connection. As another example, "reception" does not necessarily mean complete containment; this concept also includes the containment of a portion that protrudes externally. Those skilled in the art can understand the specific meaning of the aforementioned terms in this application based on the specific circumstances.

[0023] In the description of this application and the claims, if terms such as "above," "below," or "horizontal" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, they are only for the purpose of clearly and simply describing this application, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. These directional terms are relative concepts used for relative description and clarification, and may change accordingly depending on the orientation of the components in the drawings. For example, if the device in the drawings is flipped, an element described as "below" other elements will be positioned "above" other elements.

[0024] In the description of this application specification and claims, the term "if" is generally interchangeable with "when," "at," "in response to determination," or "in response to detection," depending on the context.

[0025] In the description of this application and the claims, if there is a "direction" of motion, including motion with a directional component, the term "in direction" is not necessarily understood as motion only in that one direction. Those skilled in the art can understand the specific meaning of the aforementioned terms in this application according to the specific circumstances.

[0026] like Figures 1 to 4 As shown, a front wheel rotation linkage structure for a children's vehicle includes a frame 1 and a front wheel assembly 2. The upper part of the front wheel assembly 2 has a connecting component for rotatably connecting with the front wheel seat of the frame 1. The frame 1 has a push handle seat 102 at the push handle 101. The push handle seat 102 has an operating handle 3 that can rotate relative to it. The operating handle 3 and the connecting component of the front wheel assembly 2 are linked and connected through a traction cable assembly 4. Under the linkage action of the traction cable assembly 4, the front wheel assembly 2 rotates in the same direction as the operating handle 3.

[0027] In this embodiment, the push handle seat 102 is located at the top center of the push handle 101, and the operating handle 3 is rotatably mounted above and behind the push handle seat 102 via a rotating shaft. The bottom of the push handle seat 102 has an upper linkage plate 301 coaxially fixed with the operating handle 3, and the connecting assembly has a lower linkage plate 201. The traction cable assembly 4 is located between the upper linkage plate 301 and the lower linkage plate 201. The rotating shaft is located on the symmetrical center plane of the frame 1.

[0028] The shape of the operating handle 3 can vary. In this embodiment, a flat ring-shaped operating handle 3 is preferred. A mounting base 302 that is rotatably connected to the push handle seat 102 is formed in the lower middle position of the handle. A grip sleeve 303 can be provided in the upper or upper middle position of the handle. The grip sleeve 303 preferably adopts an anti-slip design, such as an anti-slip texture or a concave-convex structure on the surface. Its material is preferably an elastic material or a soft material to improve the comfort when holding the handle.

[0029] In this embodiment, the traction cable assembly 4 consists of two traction cables 401 and 402, which are arranged in an odd-numbered staggered manner. The upper end of one traction cable is connected to the left side of the upper linkage disc 301, and the lower end is connected to the right side of the lower linkage disc 201; the upper end of the other traction cable is connected to the right side of the upper linkage disc 301, and the lower end is connected to the left side of the lower linkage disc 201. During the pushing process, the front wheel assembly 2 can be rotated in the same direction by rotating the operating handle 3. The staggering of the two traction cables 401 and 402 can be once or multiple times (odd number of times), and can be designed according to different frame structures, as long as the lower linkage disc 201 and the upper linkage disc 301 can rotate in the same direction.

[0030] In this embodiment, the upper linkage disc 301 has arc-shaped grooves 3011 and 3012 arranged symmetrically on the left and right sides to accommodate the two traction cables 401 and 402. The ends of the two arc-shaped grooves 3011 and 3012 on the same side have slots 3013 and 3014 for the ends of the traction cables 401 and 402 to be engaged. The lower linkage disc 201 includes a collar portion 2011 sleeved and fixed on the connecting assembly and a fan-shaped portion 2012 extended backward from the collar portion 2011. The lower ends of the two traction cables 401 and 402 are staggered and connected to both sides of the fan-shaped portion 2012. The lower linkage disc 201 has symmetrically arranged inclined grooves 2013 and 2014 on its rear side of the fan-shaped portion 2012, into which the two traction cables 401 and 402 extend. The front ends of the inclined grooves 2013 and 2014 have limiting grooves 2015 and 2016 for engaging the ends of the traction cables 401 and 402. The aforementioned arc-shaped grooves 3011 and 3012, the engaging grooves 3013 and 3014, the inclined grooves 2013 and 2014, and the limiting grooves 2015 and 2016 are merely preferred embodiments to facilitate the installation of the traction cables 401 and 402 at both ends; their structure is variable.

[0031] This application solves the problem of difficulty in steering the front wheels of existing children's strollers. It sets up an operating handle 3 on the push handle 101 that is linked to the front wheel assembly 2. By rotating the operating handle 3, the front wheels can be rotated synchronously left and right. The structure is simple and novel, and the operation is convenient.

[0032] As a preferred embodiment of this application, in the description of this specification, the reference to terms such as "preferred," "optional," etc., means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The above embodiments are only used to illustrate the detailed solutions of this application. This application is not limited to the above detailed solutions, that is, it does not mean that this application must rely on the above detailed solutions to be implemented. Those skilled in the art should understand that any improvements to this application, equivalent substitutions of the raw materials of the product of this application, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of this application.

Claims

1. A front wheel rotation linkage structure of a baby carriage, comprising a carriage frame and a front wheel assembly, the front wheel assembly having a connecting assembly at its upper portion for rotationally connecting with a front wheel seat of the carriage frame, characterized in that: The handlebar of the frame is provided with a handlebar seat, the handlebar seat is provided with an operation handle which can rotate relative to the handlebar seat, the operation handle and the connecting assembly of the front wheel assembly are connected through a traction cable assembly, the traction cable assembly includes two traction cables, the two traction cables are arranged staggeredly between the handlebar seat and the front wheel assembly, so that the front wheel assembly rotates with the operation handle under the linkage of the traction cable assembly.

2. The front wheel rotation linkage structure of a baby carriage according to claim 1, wherein: The handlebar seat is arranged at the middle of the top of the handlebar, and the operation handle is arranged rotatably above the rear of the handlebar seat through a rotating shaft. The bottom of the handlebar seat is provided with an upper linkage disc which is coaxial with the operation handle, and the connecting assembly is provided with a lower linkage disc.

3. The front wheel rotation linkage structure of a baby carriage according to claim 2, wherein: The rotating shaft is located on the center plane of the frame.

4. The front wheel rotation linkage structure of a baby carriage according to claim 2, wherein: The two traction cables are arranged in an odd number staggered manner, one end of one traction cable is connected to the left side of the upper linkage disc, and the other end is connected to the right side of the lower linkage disc; one end of the other traction cable is connected to the right side of the upper linkage disc, and the other end is connected to the left side of the lower linkage disc.

5. The front wheel rotation linkage structure of a baby carriage according to claim 4, wherein: The upper linkage disc is provided with two arc-shaped grooves which are arranged symmetrically and are used for accommodating the two traction cables, the same side ends of the two arc-shaped grooves are provided with clamping grooves for clamping the ends of the traction cables; the lower linkage disc includes a loop part which is sleeved and fixed on the connecting assembly and a fan-shaped part which is formed by extending backward from the loop part, and the two ends of the two traction cables are connected to the left and right sides of the fan-shaped part.

6. A front wheel rotation linkage structure for a stroller according to claim 5, wherein: The rear side of the fan-shaped part of the lower linkage disc is provided with two inclined grooves which are arranged symmetrically and are used for extending into the two traction cables, and the front ends of the two inclined grooves are provided with limiting grooves for clamping the ends of the traction cables. The rear side of the fan-shaped part of the lower linkage disc is provided with two inclined grooves which are arranged symmetrically and are used for extending into the two traction cables, and the front ends of the two inclined grooves are provided with limiting grooves for clamping the ends of the traction cables.

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