Automatic unlocking mechanism for sunshade of baby carriage

Abstract

The utility model discloses a baby carriage awning automatic unlocking mechanism which comprises an awning frame, a push rod and a push handle which is rotatably connected with the push rod and can be relatively folded, the awning frame is rotatably connected with a push rod mounting seat on the push rod through an awning frame mounting seat, and an awning frame locking mechanism is arranged between the awning frame and the push rod mounting seat. An unlocking linkage piece of the tent frame locking mechanism is connected with the push handle through a traction cable; when the baby carriage is folded, the push handle rotates and is folded relative to the push rod, and the push handle drives the unlocking linkage piece to move through the traction cable so as to unlock the tent frame locking mechanism. The folding mechanism is novel and simple in structure, locking between the tent frame and the push rod can be automatically relieved in the folding process of the frame of the baby carriage, the tent frame can be folded, and the whole baby carriage can be conveniently and rapidly folded.

Description

Technical Field

[0001] The utility model relates to the field of baby carriages, in particular to an automatic unlocking mechanism for the sunshade of a baby carriage. Background Art

[0002] At present, baby carriages are more and more commonly used in life. Infants and young children often use baby carriages to go out. Their usage places are generally outdoors. Sometimes the sunlight outdoors is too strong. In order to avoid direct sunlight, most baby carriages are equipped with sunshade structures.

[0003] In order to make the vision and activity space of the child in the baby carriage wider, the sunshade is usually fixed on the push rod far away from the seat. Between the traditional sunshade and the push rod, the opening and folding are usually realized through a lockable rotating joint; when the baby carriage is not in use, the baby carriage frame will be folded. However, when wanting to fold the sunshade, while unlocking the lock of the carriage frame, it is also necessary to additionally release the lock or limit between the sunshade and the push rod. Therefore, the operation process is relatively cumbersome, very inconvenient to operate, and the whole vehicle cannot be folded with one hand. Summary of the Invention

[0004] The purpose of the utility model is to provide an automatic unlocking mechanism for the sunshade of a baby carriage, with a novel and simple structure, which can automatically release the lock between the awning frame and the push rod during the folding process of the baby carriage and realize the folding of the awning frame, facilitating the quick folding of the whole vehicle.

[0005] The technical solution of the utility model is: an automatic unlocking mechanism for the sunshade of a baby carriage, including an awning frame, a push rod, and a push handle rotatably connected to the push rod and capable of being relatively folded. A push handle locking mechanism is provided between the push handle and the push rod to lock the two when the baby carriage is unfolded. The awning frame is rotatably connected to the push rod mounting seat on the push rod through an awning frame mounting seat, and there is an awning frame locking mechanism between the two. The unlocking linkage of the awning frame locking mechanism is connected to the push handle through a traction cable; when the baby carriage is folded, the push handle rotates and is relatively folded with the push rod, and the push handle drives the unlocking linkage to move through the traction cable to release the lock of the awning frame locking mechanism.

[0006] As a preferred technical solution, the awning frame locking mechanism includes a locking gear axially movable between the awning frame mounting seat and the push rod mounting seat, a first tooth groove formed in the awning frame mounting seat corresponding to the locking gear, a second tooth groove formed in the push rod mounting seat corresponding to the locking gear, and a reset member provided between the locking gear and the awning frame mounting seat; the unlocking linkage is a turntable provided between the locking gear and the push rod mounting seat, and the unlocking linkage is in inclined surface cooperation with the locking gear;

[0007] When the stroller is unfolded, the locking gear is simultaneously engaged in the first tooth groove and the second tooth groove. At this time, the canopy mounting seat and the push rod mounting seat are limited and locked.

[0008] When the stroller is folded, the push handle rotates and folds relative to the push rod. The unlocking linkage rotates under the driving action of the traction cable and axially moves the locking gear through the inclined surface cooperation, so that it exits the second tooth groove and releases the limit lock between the canopy mounting seat and the push rod mounting seat.

[0009] As a preferred technical solution, the canopy mounting seat, the push rod mounting seat, the unlocking linkage and the locking gear are coaxially arranged.

[0010] As a preferred technical solution, the locking gear includes a disc-shaped portion, a plurality of tooth-shaped portions formed on the outer periphery of the disc-shaped portion, and a guide block portion protruding from one end face of the tooth-shaped portion; the unlocking linkage has a guide groove portion corresponding to the guide block portion of the locking gear.

[0011] Among them, the guide block portion is a trapezoidal portion with a high middle and low sides, and the guide groove portion is a trapezoidal groove with a wide groove opening and a narrow groove bottom. The first tooth groove is a groove body structure for accommodating and axially moving the disc-shaped portion and the tooth-shaped portion of the locking gear, and the second tooth groove has a groove body structure corresponding to the guide block portion of the locking gear and inclined surface cooperation.

[0012] When the stroller is unfolded, the canopy can be rotated by applying an external force. The canopy cooperates with the inclined surface of the second tooth groove through the guide block portion of the locking gear that can axially move in its canopy mounting seat, so that the locking gear axially moves and exits the second tooth groove, realizing the unlocking of the canopy locking mechanism, so as to realize the angle adjustment or opening and closing of the canopy.

[0013] As a preferred technical solution, the outer periphery of the unlocking linkage has an arc groove for the traction cable to be embedded; when the stroller is unfolded, a part of the traction cable is embedded in the arc groove and wound around the outer periphery of the unlocking linkage; when the stroller is folded, the push handle rotates and folds relative to the push rod and pulls up the traction cable, and the traction cable drives the unlocking linkage to rotate.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. The structure of the present utility model is novel and concise. During the folding process of the stroller frame, the lock between the canopy and the push rod can be automatically released and the canopy can be folded, which is convenient for quickly folding the whole vehicle.

[0016] 2. The awning frame locking mechanism of the present utility model adopts a special structural design. Its guide block part is a trapezoidal part with a higher middle and lower sides, and the second tooth groove has a groove body structure corresponding to and in inclined surface fit with the guide block part of the locking gear. Therefore, when the baby carriage is unfolded, the awning frame can be rotated by applying an external force. The awning frame is in inclined surface fit with the second tooth groove through the guide block of the locking gear that can axially move in its awning frame mounting seat, so that the locking gear axially moves and exits the second tooth groove, realizing the unlocking of the awning frame locking mechanism, so as to realize the angle adjustment or opening of the awning frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. The following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present utility model can be implemented. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model.

[0019] Figure 1 It is a schematic assembly structure diagram of the present utility model at a certain angle;

[0020] Figure 2 It is a schematic assembly structure diagram of the present utility model at another angle;

[0021] Figure 3 It is a three-dimensional structure diagram of the push rod mounting seat in the present utility model;

[0022] Figure 4 It is a three-dimensional structure diagram of the locking gear in the present utility model;

[0023] Figure 5 It is a schematic side sectional structure diagram of the present utility model in the locked state;

[0024] Figure 6 It is a three-dimensional structure diagram of the present utility model used in a baby carriage and the baby carriage is in the unfolded state;

[0025] Figure 7 For Figure 6 side structure diagram;

[0026] Figure 8For Figure 7 Schematic diagram of the side structure during the folding process.

[0027] Wherein: 1 awning frame; 101 awning frame mounting seat;

[0028] 2 push rod; 201 push rod mounting seat;

[0029] 3 push handle;

[0030] 4 awning frame locking mechanism; 401 unlocking linkage; 4012 arc groove; 4013 limiting part; 402 locking gear; 4021 disc part; 4022 tooth part; 4023 guide block part; 4024 annular mounting groove; 403 first tooth groove; 404 second tooth groove;

[0031] 5 towing cable. Specific embodiments

[0032] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application. It can be understood that, without conflict, some technical means described in the various embodiments herein may be replaced or combined with each other.

[0033] In the description of the specification and claims of the present application, if there are terms such as "first", "second", etc., they are only used to distinguish the described objects and do not have any sequential or technical meaning. Thus, the objects defined with "first", "second", etc. may explicitly or implicitly include one or more of such objects. And, words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one, and "multiple" means not less than two.

[0034] In the description of the specification and claims of the present application, if there are terms such as "connection", "installation", "fixation", "accommodation", etc., without special explanation, they should all be understood in a broad sense. For example, "connection" can be a split connection or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; it can be a non-detachable connection or a detachable connection. Also, for example, "accommodation" does not necessarily mean that the whole is completely accommodated, and this concept also includes a situation where a part protrudes outside. For those skilled in the art, the specific meanings of the foregoing terms in the present application can be understood according to specific circumstances.

[0035] In the description of the specification and claims of this application, if there are terms such as "upper", "lower", "horizontal", etc., indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. This is only for the purpose of clearly and simply describing this application, rather than indicating or implying that the indicated elements must have a specific direction, be constructed and operated in a specific orientation. These directional terms are relative concepts used for description and clarification relative to each other, and can change accordingly with the change in the orientation of the components placed in the drawings. For example, if the device in the figure is flipped, the element described as "below" other elements will be positioned "above" other elements.

[0036] In the description of the specification and claims of this application, if there is the term "if", depending on the context, it can generally be interchanged with "when", "while", "in response to determining", or "in response to detecting".

[0037] In the description of the specification and claims of this application, if there is "in the direction of" regarding motion, including motion with a direction component, it is not necessarily to understand the term "in the direction of" as motion only in that one direction. For those skilled in the art, the specific meaning of the foregoing terms in this application can be understood according to specific circumstances.

[0038] As Figures 1 to 8 shown, a stroller sunshade automatic unlocking mechanism includes a sunshade frame 1, a push rod 2, and a push handle 3 that is rotatably connected to the push rod 2 and can be relatively folded. A push handle locking mechanism is provided between the push handle 3 and the push rod 2 to lock the two when the stroller is unfolded. The sunshade frame 1 is rotatably connected to a push rod mounting seat 201 on the push rod 2 through a sunshade frame mounting seat 101, and there is a sunshade frame locking mechanism 4 between the two. The unlocking linkage 401 of the sunshade frame locking mechanism 4 is connected to the push handle 3 through a traction cable 5.

[0039] In this embodiment, the sunshade frame locking mechanism 4 includes a locking gear 402 that is axially movable and is provided between the sunshade frame mounting seat 101 and the push rod mounting seat 201, a first tooth groove 403 formed in the sunshade frame mounting seat 101 and corresponding to the locking gear 402, a second tooth groove 404 formed in the push rod mounting seat 201 and corresponding to the locking gear 402, and a reset member (not shown in the figure) provided between the locking gear 402 and the sunshade frame mounting seat 101; the unlocking linkage 401 is a turntable that is rotatable and is provided between the locking gear 402 and the push rod mounting seat 201. Among them, the sunshade frame mounting seat 101, the push rod mounting seat 201, the unlocking linkage 401, and the locking gear 402 are coaxially arranged. The unlocking linkage 401 is in inclined surface cooperation with the locking gear 402.

[0040] In this embodiment, the locking gear 402 includes a disc-shaped portion 4021, a plurality of tooth-shaped portions 4022 formed on the outer periphery of the disc-shaped portion 4021, and a guide block portion 4023 protruding from one end face of the tooth-shaped portion 4022; the unlocking linkage 401 has a guide groove portion 4011 corresponding to the guide block portion 4023 of the locking gear 402. The reset member is preferably a reset spring. To facilitate the assembly of the reset member, an annular mounting groove 4024 for mounting the reset member is formed on one side of the disc-shaped portion 4021 close to the awning frame mounting seat 101.

[0041] Among them, the guide block portion 4023 is a trapezoidal portion with a high middle and low sides, and the guide groove portion 4011 is a trapezoidal groove with a wide groove opening and a narrow groove bottom. The first tooth groove 403 is a groove body structure for accommodating and axially moving the disc-shaped portion 4021 and the tooth-shaped portion 4022 of the locking gear 402, and the second tooth groove 404 has a groove body structure corresponding to the guide block portion 4023 of the locking gear 402 and mating with the inclined surface.

[0042] The awning frame locking mechanism 4 of the present utility model adopts a special structural design. When the baby carriage is unfolded, the awning frame 1 can be rotated by applying an external force. The awning frame 1 cooperates with the inclined surface of the second tooth groove 404 through the guide block portion 4023 of the locking gear 402 that can axially move in its awning frame mounting seat 101, so that the locking gear 402 axially moves and exits the second tooth groove, realizing the unlocking of the awning frame locking mechanism 4, so as to realize the angle adjustment or opening and closing of the awning frame 1.

[0043] In addition, since the guide block portion 4023 is a trapezoidal portion and both sides thereof have inclined surfaces, it is convenient for the awning frame 1 to rotate bidirectionally, better realizing angle adjustment, and when the whole vehicle is folded, the awning frame 1 in the unlocked state has better flexibility and can rotate and fold relative to the push rod 2 under its own weight as the whole vehicle is folded.

[0044] In this embodiment, an arc-shaped groove 4012 for embedding the traction cable 5 is formed on the outer periphery of the unlocking linkage 401, and a limiting portion 4013 for limiting and fixing the end of the traction cable 5 is formed at one end of the arc-shaped groove 4012; when the baby carriage is unfolded, a part of the traction cable 5 is embedded in the arc-shaped groove 4012 and wound around the outer periphery of the unlocking linkage 401; when the baby carriage is folded, the push handle 3 rotates and folds relative to the push rod 2 and pulls up the traction cable 5, and the traction cable 5 drives the unlocking linkage 401 to rotate.

[0045] The working principle of the present utility model is:

[0046] When the baby carriage is unfolded, the locking gear 402 is simultaneously engaged in the first tooth groove 403 and the second tooth groove 404. At this time, the awning frame mounting seat 101 and the push rod mounting seat 201 are limited and locked. At this time, the awning frame 1 can be rotated by applying an external force. The awning frame 1 cooperates with the inclined surface of the second tooth groove 404 through the guide block portion 4023 of the locking gear 402 that can axially move in the awning frame mounting seat 101 of the awning frame 1, so that the locking gear 402 axially moves and retracts into the first tooth groove 403 and exits the second tooth groove 404, realizing the unlocking of the awning frame locking mechanism 4, so as to realize the angle adjustment or opening and closing of the awning frame 1. When the adjustment reaches the required position and no external rotational force is applied, the locking gear 402 resets under the action of the reset member, automatically realizing the re-locking of the awning frame locking mechanism 4. At this time, the awning frame 1 remains in the corresponding position or opening angle.

[0047] When the baby carriage is folded, the push handle 3 rotates and folds relative to the push rod 2. The unlocking linkage 401 rotates under the driving action of the traction cable 5 and axially moves the locking gear 402 through the inclined surface cooperation, so that it retracts into the first tooth groove 403 and exits the second tooth groove 404, releasing the locking between the awning frame mounting seat 101 and the push rod mounting seat 201 and remaining in the unlocked state; at this time, while the various components of the baby carriage frame rotate and fold up, the awning frame 1 in the unlocked state will automatically fold relative to the push rod under its own weight.

[0048] The structure of the present utility model is novel and simple. During the folding process of the baby carriage, the locking between the awning frame 1 and the push rod 2 can be automatically released and the awning frame 1 can be folded, which is convenient for quickly folding the whole vehicle.

[0049] As a preferred embodiment of the present invention, in the description of this specification, the description referring to terms such as "preferred" and "optional" means that the specific features, structures, materials or characteristics described in connection with this embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0050] The above embodiments are only used to illustrate the detailed solutions of the present invention. The present invention is not limited to the above detailed solutions, that is, it does not mean that the present invention must rely on the above detailed solutions to be implemented. Those skilled in the art should understand that any improvement to the present invention, the equivalent replacement of the raw materials of the products of the present invention, the addition of auxiliary components, and the selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. An automatic unlocking mechanism for a stroller sunshade, comprising a sunshade frame, a push rod, and a push handle that is rotatably connected to the push rod and can be relatively folded. A push handle locking mechanism is provided between the push handle and the push rod to lock the two when the stroller is unfolded. It is characterized in that: The awning frame is rotatably connected to the push rod mounting seat on the push rod through the awning frame mounting seat, and there is an awning frame locking mechanism between the two. The unlocking linkage of the awning frame locking mechanism is connected to the push handle through a traction cable. When the stroller is folded, the push handle rotates and closes relative to the push rod, and the push handle drives the unlocking linkage to move through the traction cable to release the locking of the awning frame locking mechanism.

2. The automatic unlocking mechanism for the sunshade of a baby carriage according to claim 1, characterized in that: The awning frame locking mechanism includes a locking gear disposed between the awning frame mounting seat and the push rod mounting seat and axially movable, a first tooth groove formed in the awning frame mounting seat and corresponding to the locking gear, a second tooth groove formed in the push rod mounting seat and corresponding to the locking gear, and a reset member disposed between the locking gear and the awning frame mounting seat. The unlocking linkage is a turntable disposed between the locking gear and the push rod mounting seat, and the unlocking linkage is in inclined surface fit with the locking gear. When the stroller is unfolded, the locking gear is simultaneously engaged in the first tooth groove and the second tooth groove. At this time, the awning frame mounting seat and the push rod mounting seat are limited and locked. When the stroller is folded, the push handle rotates and closes relative to the push rod. The unlocking linkage rotates under the driving action of the traction cable and axially moves the locking gear through the inclined surface fit, so that it exits the second tooth groove and releases the limit locking between the awning frame mounting seat and the push rod mounting seat.

3. The automatic unlocking mechanism for the sunshade of a stroller according to claim 2, characterized in that: The awning frame mounting seat, the push rod mounting seat, the unlocking linkage and the locking gear are coaxially arranged.

4. The automatic unlocking mechanism for a stroller sunshade according to claim 2, characterized in that: The locking gear includes a disc portion, a plurality of tooth portions formed on the outer periphery of the disc portion, and a guide block portion protruding from one end face of the tooth portion; the unlocking linkage has a guide groove portion corresponding to the guide block portion of the locking gear.

5. The automatic unlocking mechanism for the sunshade of a stroller according to claim 4, characterized in that: The guide block portion is a trapezoidal portion with a high middle and low sides, and the guide groove portion is a trapezoidal groove with a wide groove opening and a narrow groove bottom.

6. The automatic unlocking mechanism for the sunshade of a baby carriage according to claim 5, characterized in that: The first tooth groove is a groove body structure for accommodating and axially moving the disc portion and the tooth portion of the locking gear. The second tooth groove has a groove body structure corresponding to and in inclined surface fit with the guide block portion of the locking gear. When the stroller is unfolded, the awning frame can be rotated by applying an external force. The awning frame is in inclined surface fit with the second tooth groove through the guide block portion of the locking gear axially movable in its awning frame mounting seat, so that the locking gear axially moves and exits the second tooth groove, realizing the unlocking of the awning frame locking mechanism.

7. An automatic unlocking mechanism for a stroller sunshade according to claim 2, characterized in that: The outer periphery of the unlocking linkage has an arc groove for embedding the traction cable. When the stroller is unfolded, a part of the traction cable is embedded in the arc groove and wound around the outer periphery of the unlocking linkage. When the stroller is folded, the push handle rotates and closes relative to the push rod and pulls up the traction cable, and the traction cable drives the unlocking linkage to rotate.

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