A fixing mechanism for a child stroller and a child stroller

Abstract

The utility model provides a fixing mechanism of a child stroller and a child stroller, comprising: a first fixing structure and a second fixing structure, both of which can be folded and unfolded; a locking piece, which can be switched between a first position and a second position; and an unlocking piece, which controls the locking piece to switch between the first position and the second position. The beneficial effects of the utility model are as follows: in the present invention, a rotatable first fixing structure and a second fixing structure are arranged on the bottom frame, and when the first fixing structure and the second fixing structure are both in an unfolded state, the bottom cross bar structure of the object to be added can be slid into the concave notch of the second fixing structure, and then another cross bar structure can be locked to the first fixing structure, so as to achieve the function of fixing the object. When the object needs to be disassembled, it only needs to rotate the unlocking piece, and the cross bar structure can be separated from the first fixing structure. The fixing mechanism of the entire child trailer has a simple structure, is easy to operate, and has strong versatility.

Description

Technical Field

[0001] The utility model belongs to the technical field of child strollers and relates to a fixing mechanism of a child stroller and the child stroller. Background Art

[0002] When parents take their children out, they often need to carry a stroller with them and put the children in the stroller for movement. In addition, it is difficult to play other roles in daily life.

[0003] In order to improve the versatility of child strollers, child strollers that can be combined with child car safety seats and the like have emerged. However, the steps for assembling these child strollers are complicated and require a lot of effort from the user. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a child stroller which, in addition to being able to allow children to sit, also has a fixing mechanism for adding other objects, and the adding process is convenient and simple.

[0005] The technical solution adopted by the present invention to solve the technical problem is to provide a fixing mechanism for a child stroller and a child stroller, comprising:

[0006] A first fixing structure, the first fixing structure comprising a first strip-shaped portion, a first concave notch for accommodating a crossbar structure being disposed at an end of the first strip-shaped portion;

[0007] A locking piece, wherein the locking piece is rotatably arranged at one end of the first strip-shaped portion, and a second concave notch with an opening facing a direction different from the first concave notch is arranged on one side of the locking piece, and the locking piece can be switched between a first position and a second position. When the locking piece is in the first position, the overlapping portion of the second concave notch and the first concave notch is located at the bottom of the first concave notch to lock the crossbar structure accommodated in the first concave notch; when the locking piece is in the second position, the overlapping portion of the second concave notch and the first concave notch forms an open notch, and the notch enables the crossbar structure to pass through and thus escape from the first concave notch;

[0008] An unlocking member, a connecting member is arranged between the unlocking member and the locking piece, and the unlocking member can drive the connecting member to move to control the locking piece to switch back and forth between the first position and the second position.

[0009] Furthermore, a first spring is provided on one side of the locking piece, one end of the first spring abuts against the locking piece, and the other end of the first spring abuts against the first strip portion, so that the locking piece is reset from the first position to the second position.

[0010] Furthermore, a third concave notch is provided on the other side of the second concave notch of the locking piece; and the connecting piece is provided with a locking pin, and the locking pin can move with the connecting piece.

[0011] Furthermore, a second spring is provided on one side of the locking pin, one end of the second spring abuts against the locking pin, and the other end abuts against the first strip portion, and the elastic force of the second spring resets the locking pin and inserts it into the third concave notch to keep the locking sheet in the first position.

[0012] Furthermore, the unlocking member is rotatably arranged on the bottom frame, and when the unlocking member is rotated, the connecting member can be driven to move.

[0013] Furthermore, the second fixed structure is rotatably disposed on the bottom frame, one end of the second fixed structure is connected to the bottom frame, and the other end is provided with a fourth concave notch that can accommodate the cross bar structure; the first fixed structure includes a second strip-shaped portion, and the connection between the first strip-shaped portion and the second strip-shaped portion is rotatably disposed on the bottom frame.

[0014] Further, a concave notch is provided at one end of the second strip-shaped portion away from the connection, a plurality of protrusions are provided on the bottom frame and the protrusions can be accommodated in the concave notch, a same concave notch is provided on the first strip-shaped portion, and the distance between the concave notch and the connection is the same as the distance between the concave notch on the second strip-shaped portion and the connection;

[0015] The second fixing structure is connected to one end of the bottom frame and is provided with two concave notches. When the first fixing structure and the second fixing structure rotate, the protrusion on the bottom frame moves between the concave notches, so that the first fixing structure and the second fixing structure switch between the unfolded and folded states.

[0016] Furthermore, at least two concave notches are provided at one end of the second fixed structure connected to the bottom frame, and the length of the second fixed structure is adjustable. When the second fixed structure rotates, the expansion range of the second fixed structure can be adjusted by adjusting the concave notch selected by the bottom frame protrusion and the length of the second fixed structure.

[0017] Furthermore, when the first fixing structure and the second fixing structure are in the unfolded state, the fourth concave notch of the second fixing structure can accommodate the crossbar structure and the first concave notch of the first fixing structure can lock the crossbar structure to fix the added object.

[0018] The technical solution adopted by the present invention to solve the technical problem is to further provide a child stroller, comprising:

[0019] A support rod group and a bracket arranged on the support rod group;

[0020] The bottom frame comprises a plurality of wheels and the above-mentioned fixing mechanism rotatably arranged on the bottom frame.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] In the present invention, a rotatable first fixing structure and a second fixing structure are arranged on the bottom frame. When the first fixing structure and the second fixing structure are both in the unfolded state, the bottom cross bar structure of the object to be installed can be slid into the concave notch of the second fixing structure, and then the other cross bar structure is locked to the first fixing structure, so as to achieve the function of fixing the object. When the object needs to be disassembled, it only needs to rotate the unlocking piece, and the cross bar structure can be separated from the first fixing structure. The fixing mechanism of the entire child trailer has a simple structure, is easy to operate, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the child stroller of the utility model (when the fixing mechanism is folded).

[0024] Figure 2 It is a structural schematic diagram of the first fixed structure.

[0025] Figure 3 It is a structural schematic diagram of the second fixed structure.

[0026] Figure 4 It is a schematic diagram of the structure of the boss on the bottom frame.

[0027] Figure 5 It is a schematic diagram of the first fixing structure (when the locking piece is in the first position).

[0028] Figure 6 It is a schematic diagram of the first fixing structure (when the locking piece is in the second position).

[0029] Figure 7 It is a schematic diagram of the connection part between the fixing mechanism and the bottom frame (when folded).

[0030] Figure 8 Schematic diagram of the connection between the position fixing mechanism and the bottom frame (when unfolded).

[0031] Fig. 9 This is a schematic diagram of the fixing mechanism when it is unfolded.

[0032] Fig.10 Schematic diagram of the unlocking piece on the bottom frame.

[0033] In the figure:

[0034] 1. Unlocking parts;

[0035] 2. first fixing structure; 21. first strip-shaped portion; 211. first concave notch; 212. concave notch; 22. second strip-shaped portion; 221. concave notch; 23. locking piece; 231. second concave notch; 232. third concave notch; 24. first spring; 25. locking pin; 26. connecting member; 27. second spring;

[0036] 3. second fixing structure; 31. fourth concave notch; 32. concave notch;

[0037] 4. bottom frame; 41. bump;

[0038] 5. Support rod set;

[0039] 6. Bracket. DETAILED DESCRIPTION

[0040] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0041] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] The fixing mechanism of this embodiment can be applied to the case where a child stroller is equipped with a car seat or other objects. This embodiment is described in detail with reference to its application to a child stroller.

[0046] like Figure 1 As shown, a fixing mechanism of this embodiment is mainly used in a child stroller. Generally, a fixing mechanism is provided on the base frame of the child stroller, and the fixing mechanism can be folded and unfolded. The fixing mechanism of this embodiment mainly includes: an unlocking member 1, a first fixing structure 2, a second fixing structure 3, and a bottom frame 4, wherein the first fixing structure 1 mainly includes: a first strip portion 21, a second strip portion 22, a locking piece 23, a first spring 24, a locking pin 25, a connecting member 26, and a second spring 27.

[0047] The first fixed structure 2 and the second fixed structure 3 can both be rotatably arranged on the bottom frame 4, and the first fixed structure 2 and the second fixed structure 3 are hinged to the bottom frame 4. The ends of the first strip portion 21 and the second fixed structure 3 away from the bottom frame 4 can be brought close to each other for folding. After folding, the first fixed structure 2 and the second fixed structure 3 are both roughly in a horizontal state; and the ends of the first strip portion 21 and the second fixed structure 3 away from the bottom frame 4 can be moved away from each other for unfolding. After unfolding, the first fixed structure 2 and the second fixed structure 3 are both roughly arranged in a vertical direction.

[0048] The first fixing structure 2 mainly includes a first strip portion 21, a second strip portion 22, a locking piece 23, a first spring 24, a locking pin 25, a connecting piece 26, and a second spring 27.

[0049] in:

[0050] The first strip portion 21 and the second strip portion 22 are rigidly connected and then rotatably hinged.

[0051] On the bottom frame 4, the locking piece 23 is movably arranged on the first strip portion 21.

[0052] The stator 23 has a first position and a second position on the first strip portion 21, that is, the first position

[0053] When the locking piece 23 locks the crossbar structure to the first strip portion 22, the locking piece 23

[0054] At the position of the first strip 21, the first spring 24 is compressed and the locking pin 25

[0055] The locking piece 23 can be locked in the first position. The second position is when the crossbar structure is moved from the first

[0056] The strip 21 is disengaged, and the locking piece 23 is located at the first strip 21.

[0057] The first spring 24 keeps the second position.

[0058] Specifically, Figure 5-Figure 6 As shown, the first spring 24 of this embodiment is arranged between the locking piece 23 and the first strip 21, one end of the first spring 24 abuts against the locking piece 23, and the other end of the first spring 24 abuts against the first strip 21. When the locking pin 25 is separated from the locking piece 23, the elastic force of the first spring 24 drives the locking piece to move from the first position to the second position. The first spring 24 always has a downward force on the locking piece 23 to ensure the structural stability of the locking piece 23. When the cross bar structure of this embodiment enters the first concave notch 211 and the second concave notch 231 and presses downward, it drives the locking piece 23 to rotate. At this time, the locking pin 25 is inserted into the third concave notch 232 under the action of the elastic force of the second spring 27. At this time, the locking pin 25 cannot move inward under the action of the elastic force of the second spring 27, and the locking pin 25 will not be accidentally separated from the third concave notch 232.

[0059] like Fig.10 As shown, the unlocking member 1 is movably arranged on the bottom frame 4. The unlocking member 1 of this embodiment is an unlocking pedal. When the unlocking member 1 is pushed downward, the connecting member 26 is pulled by eccentric rotation. The connecting member 26 pulls the locking pin 25 to move the locking plate 23 from the first position to the second position.

[0060] Specifically, the second spring 27 of the present embodiment is sleeved on the outside of the connecting member 26 and is arranged between the locking pin 25 and the first strip portion 21. One end of the second spring 27 abuts against the locking pin 25, and the other end of the second spring 27 abuts against the first strip portion 21. When the connecting member 26 connected to the locking pin 25 is pulled, the locking pin 25 disengages from the third concave notch 232, the second spring 27 is compressed, and the locking sheet 23 moves from the first position to the second position under the elastic force of the first spring 24.

[0061] like Figure 3 As shown in the second fixed structure 3, a fourth concave notch 31 is provided at one end away from the connection between the second fixed structure 3 and the bottom frame 4. In the unfolded state, when the cross bar structure slides into the fourth concave notch 31, it will be restricted by the fourth concave notch in the vertical direction and can only move in the horizontal direction.

[0062] Specifically, Fig. 9As shown, when the second fixing structure 3 is unfolded, the opening direction of the fourth concave notch 31 of this embodiment is horizontal. When the cross bar structure slides into the fourth concave notch 31, the upper end of the fourth concave notch 31 always exerts a downward force on the cross bar mechanism to limit the vertical displacement of the fourth concave notch 31. The restricted cross bar structure cannot move in the vertical direction.

[0063] like Figure 4 As shown, there are multiple protrusions 41 on the bottom frame 4. After the first fixed structure 2 and the second fixed structure 3 are switched between the unfolded and folded states, these protrusions 41 are all located in the concave notches of the first fixed structure 2 and the second fixed structure 3, thereby limiting the rotation range of the first fixed structure 2 and the second fixed structure 3.

[0064] The unfolding and folding principle of this fixing mechanism: Figure 7-Figure 8 As shown, the first fixing structure 2 and the second fixing structure 3 are both in a folded state, and at this time, one of the protrusions 41 on the bottom frame 4 is located as shown in FIG. Figure 2 The concave notch 212 on the first strip portion 21 shown in the figure limits the position of the first fixing structure 2, and another protrusion 41 on the bottom frame 4 is located in the concave notch 32 on the second fixing structure 3, limiting the position of the second fixing structure 3; the first fixing structure 2 and the second fixing structure 3 are both in the unfolded state, at which time one of the protrusions 41 on the bottom frame 4 is located as shown in FIG. Figure 2 The concave notch 221 on the second strip portion 22 limits the position of the first fixing structure 2 , and another protrusion 31 on the bottom frame 4 is located in another concave notch 32 on the second shareholder structure 3 , limiting the position of the second fixing structure 3 .

[0065] In this embodiment, the object to be installed has two crossbar structures. During the installation process, the first fixing structure 2 and the second fixing structure 3 are first changed from a folded state to an unfolded state. Fig. 9 As shown, one of the crossbar structures is slid into the fourth concave notch 31, and its displacement in the vertical direction is restricted. Then the crossbar structure is pressed into the first concave notch 211. At this time, the locking piece 23 rotates the locking pin 25 under the elastic force of the second spring 27 and inserts it into the third concave notch 232 to lock the locking piece 23. At this time, the two crossbars with the added object are in a locked state under the action of the two fixed structures. When taking it out, just step on the unlocking member 1, the unlocking member 1 rotates and pulls the connecting member 26, and the connecting member 26 then pulls the locking pin 25 out of the third concave notch 232. At this time, the locking piece 23 is reset under the elastic force of the first spring 24 to push the crossbar structure out of the first concave notch 211. When the first fixed structure 2 no longer locks the crossbar structure, the crossbar structure in the fourth concave notch 31 of the second fixed structure 3 can be directly taken out.

[0066] In this solution, the fixing mechanism of the child stroller is simple and quick to operate, has strong versatility, and provides a good user experience.

Claims

1. A fixing mechanism for a child stroller, characterized in that: include: A first fixing structure, the first fixing structure comprising a first strip-shaped portion, a first concave notch for accommodating a crossbar structure being disposed at an end of the first strip-shaped portion; A locking piece, wherein the locking piece is rotatably arranged at one end of the first strip-shaped portion, and a second concave notch with an opening facing a direction different from the first concave notch is arranged on one side of the locking piece, and the locking piece can be switched between a first position and a second position. When the locking piece is in the first position, the overlapping portion of the second concave notch and the first concave notch is located at the bottom of the first concave notch to lock the crossbar structure accommodated in the first concave notch; when the locking piece is in the second position, the overlapping portion of the second concave notch and the first concave notch forms an open notch, and the notch enables the crossbar structure to pass through and thus escape from the first concave notch; An unlocking member, a connecting member is arranged between the unlocking member and the locking piece, and the unlocking member can drive the connecting member to move to control the locking piece to switch back and forth between the first position and the second position.

2. The fixing mechanism of the stroller according to claim 1, characterized in that: A first spring is arranged on one side of the locking piece, one end of the first spring abuts against the locking piece, and the other end of the first spring abuts against the first strip portion, so that the locking piece is reset from the first position to the second position.

3. The fixing mechanism of the stroller according to claim 1, characterized in that: A third concave notch is arranged on the other side of the second concave notch of the locking plate; and the connecting piece is provided with a locking pin, and the locking pin can move with the connecting piece.

4. The fixing mechanism of the stroller according to claim 3, characterized in that: A second spring is provided on one side of the locking pin, one end of the second spring abuts against the locking pin, and the other end abuts against the first strip portion, and the elastic force of the second spring resets the locking pin and inserts it into the third concave notch to keep the locking piece in the first position.

5. The fixing mechanism of the stroller according to claim 1, characterized in that: The unlocking member is rotatably arranged on the bottom frame, and can drive the connecting member to move when the unlocking member is rotated.

6. The fixing mechanism of the stroller according to claim 5, characterized in that: It also includes a second fixed structure, which is rotatably arranged on the bottom frame, one end of the second fixed structure is connected to the bottom frame, and the other end is provided with a fourth concave notch that can accommodate the cross bar structure; the first fixed structure includes a second strip-shaped portion, and the connection between the first strip-shaped portion and the second strip-shaped portion is rotatably arranged on the bottom frame.

7. The fixing mechanism for a child stroller according to claim 6, characterized in that: A concave notch is provided at one end of the second strip-shaped portion away from the connection, a plurality of protrusions are provided on the bottom frame and the protrusions can be accommodated in the concave notch, the same concave notch is provided on the first strip-shaped portion, and the distance between the concave notch and the connection is the same as the distance between the concave notch on the second strip-shaped portion and the connection; two concave notches are provided at one end of the second fixed structure connected to the bottom frame, and when the first fixed structure and the second fixed structure rotate, the protrusions on the bottom frame move between the concave notches, so that the first fixed structure and the second fixed structure switch between the unfolded and folded states.

8. The fixing mechanism of the stroller according to claim 7, characterized in that: The second fixing structure is provided with at least two concave notches at one end connected to the bottom frame, and the length of the second fixing structure is adjustable. When the second fixing structure rotates, the expansion range of the second fixing structure can be adjusted by adjusting the concave notch selected by the bottom frame protrusion and the length of the second fixing structure.

9. The fixing mechanism of the baby stroller according to claim 7 or 8, characterized in that: When the first fixing structure and the second fixing structure are in the unfolded state, the fourth concave notch of the second fixing structure can accommodate the crossbar structure and the first concave notch of the first fixing structure can lock the crossbar structure to fix the added object.

10. A baby stroller, characterized in that: include: A support rod group and a bracket arranged on the support rod group; A bottom frame comprises a plurality of wheels and a fixing mechanism as claimed in any one of claims 1 to 9 which is rotatably arranged on the bottom frame.

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