Baby carriage two-way lock and baby carriage

Abstract

The utility model relates to the technical field of baby carriages, in particular to a baby carriage dual lock and a baby carriage. The cart two-way lock comprises a first swing piece, a second swing piece, a first locking piece and a second locking piece, and in the locking state, under the action of bias pressure of the first bias pressure piece, the first locking piece is ejected out of the first mounting groove, so that a first locking part on one side of the first locking piece and a second locking part in the second mounting groove are locked in a matched mode. At the moment, the second locking piece is kept in the state of covering the pressing piece under the bias pressure effect of the second bias pressure. According to the double-lock structure, the components of the two unlocking steps in the double-lock structure are separately arranged, so that the pressing piece is prevented from being touched by mistake, and only the second locking piece needs to be pushed aside and then the pressing piece is pressed during unlocking. In the unlocking process of the first swing part and the second swing part, the first swing part and the second swing part are not hindered by the second locking part, so that the first swing part and the second swing part can be smoothly unlocked, and the unlocking process is convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, in particular to a stroller double lock and a baby carriage. Background Art

[0002] A baby stroller is a tool vehicle designed to facilitate outdoor activities for babies. With the help of the baby stroller, users can take care of infants very conveniently. In order to enable the baby stroller to be folded up when not in use to save space and facilitate transportation and storage, baby stroller manufacturers design the baby stroller to have a foldable structure.

[0003] The folding operation of the stroller requires a two-lock structure to ensure the stability of the folding. The existing two-lock structure is usually implemented by multiple sets of buckles and slots. Multiple sets of buckles and slots need to cooperate in the unlocking and locking process. After the two-lock is unlocked and locked multiple times, the buckle and the slot will be misaligned, causing the two to get stuck during relative movement, affecting the smoothness of the unlocking and locking process of the two-lock. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the two-way lock of the stroller in the prior art that the two-way lock of the stroller may get stuck during the locking or unlocking action, thereby providing a two-way lock of the stroller and a baby stroller.

[0005] In order to solve the above technical problems, the utility model provides a two-way lock for a cart, comprising:

[0006] a first swinging member, on which a first mounting groove is provided, in which a first locking member is slidably installed, a first locking portion is provided on the first locking member, a first biasing member is installed between the first locking member and the bottom of the first mounting groove, and the first biasing member is suitable for applying a biasing force on the first locking member to move toward the outside of the first mounting groove;

[0007] The second swinging member is rotatably connected to the first swinging member, a second mounting groove is provided on a side of the second swinging member facing the first swinging member, the second mounting groove is arranged opposite to the first mounting groove, a second locking portion is provided on the second mounting groove, the first locking portion is suitable for locking with the second locking portion, and a pressing member is installed on the second swinging member, the pressing member passes through the second swinging member and abuts against the first locking member;

[0008] The second locking member has one end rotatably mounted on the second swinging member, and the other end extends toward the pressing member to cover the pressing member. A second biasing member is installed between the second locking member and the second swinging member. The second biasing member is suitable for applying a biasing force to the second locking member to keep the second locking member covering the pressing member.

[0009] Optionally, the second biasing member is a second resetting elastic member, one end of the second resetting elastic member is connected to the second swinging member, and the other end of the second resetting elastic member is connected to the second locking member.

[0010] Optionally, the second reset elastic member is a torsion spring, a blocking block is provided on a side of the second locking member facing the second swinging member, one end of the torsion spring is connected to the second swinging member, and the other end abuts against the blocking block.

[0011] Optionally, a first arc portion is provided on the second locking member, and a second arc portion is provided on the second swinging member. The first arc portion and the second arc portion are slidably engaged with each other, and the center of the first arc portion coincides with the axis of rotation of the second locking member relative to the second swinging member.

[0012] Optionally, the first locking portion is a locking tooth, and a plurality of locking teeth are evenly distributed along the circumferential direction on the side surface of the first locking piece; the second locking portion is a locking groove, and the locking teeth and the locking grooves are arranged in a one-to-one correspondence.

[0013] Optionally, a limiting buckle is provided at one end of the pressing member facing the first locking member, and the limiting buckle is suitable for being engaged with the second installation groove for limiting position.

[0014] Optionally, an operating block is provided on a surface of the second locking member facing away from the second swinging member.

[0015] Optionally, a third mounting groove is provided on a surface of the second locking member facing the second swinging member, and the second biasing member is mounted in the third mounting groove.

[0016] Optionally, a mounting shaft is provided between the second locking member and the second swinging member, the mounting shaft is fixedly connected to the second locking member or the second swinging member, and the second biasing member is sleeved on the mounting shaft.

[0017] The utility model also provides a baby carriage, which has the double-lock of the stroller described in the utility model.

[0018] The technical solution of the utility model has the following advantages:

[0019] 1. The utility model provides a two-way lock for a cart. In the locked state, under the biasing force of the first biasing member, the first locking member is pushed out of the first mounting groove, so that the first locking portion on one side of the first locking member cooperates with the second locking portion in the second mounting groove to lock the relative position of the first swinging member and the second swinging member. At this time, the second locking member is kept in a state of covering the pressing member under the biasing force of the second biasing force. When the two-way lock of the cart is to be unlocked, the second locking member is manually pushed to overcome the biasing force of the second biasing member so that the second locking member moves away from the position of the pressing member, and then the pressing member is pressed to overcome the biasing force of the first biasing member so that the first locking member is retreated to the inside of the first mounting groove, so that the first locking portion and the second locking portion are separated and unlocked, so that the first swinging member and the second swinging member are unlocked and can rotate freely. By separating the components of the two unlocking steps in the two-way lock structure, only the second locking member and the pressing member are used for shielding to avoid accidental touching of the pressing member. When unlocking, it is only necessary to push the second locking member away and press the pressing member. During the unlocking process of the first swinging member and the second swinging member, there will be no obstruction from the second locking member, so that the first swinging member and the second swinging member can be unlocked smoothly, and the unlocking process is convenient and quick.

[0020] 2. The utility model provides a two-way lock for a cart, wherein a first arc portion is provided on the second locking member, and a second arc portion is provided on the second swinging member. The first arc portion and the second arc portion are slidably engaged with each other, and the center of the first arc portion coincides with the axis of rotation of the second locking member relative to the second swinging member. The first arc portion cooperates with the second arc portion to limit the rotation angle and rotation path of the second locking member relative to the second swinging member, thereby improving the stability of the two-way lock for the cart during unlocking and locking.

[0021] 3. The utility model provides a two-way lock for the cart, and a limiting buckle is provided at one end of the pressing member facing the first locking member, and the limiting buckle is suitable for being engaged with the second mounting groove to prevent the pressing member from falling off the second swinging member. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the internal structure of the two-way lock for a cart provided in an embodiment of the utility model.

[0024] Figure 2It is a schematic structural diagram of the second locking portion provided in an embodiment of the utility model.

[0025] Figure 3 It is a schematic structural diagram of the second swinging member provided in an embodiment of the utility model.

[0026] Figure 4 It is a schematic structural diagram of another angle of the second swinging member provided in the embodiment of the utility model.

[0027] Figure 5 It is a schematic structural diagram of a pressing member provided in an embodiment of the utility model.

[0028] Figure 6 It is a schematic structural diagram of the first swinging member provided in an embodiment of the utility model.

[0029] Figure 7 This is a schematic diagram of the installation position of the first biasing member provided in an embodiment of the utility model.

[0030] Figure 8 It is a schematic structural diagram of the cooperative installation of the first locking member and the first swinging member provided in the embodiment of the utility model.

[0031] Fig. 9 It is a schematic structural diagram of a cart double lock provided in an embodiment of the utility model.

[0032] Fig.10 It is a schematic structural diagram of a baby stroller provided in an embodiment of the utility model.

[0033] Explanation of the reference numerals: 1. first swinging member; 2. second swinging member; 3. first locking member; 4. second locking member; 5. first mounting groove; 6. first locking portion; 7. first biasing member; 8. second mounting groove; 9. second locking portion; 10. pressing member; 11. second biasing member; 12. blocking block; 13. first arc-shaped portion; 14. second arc-shaped portion; 15. limiting buckle; 16. operating block; 17. third mounting groove; 18. mounting shaft. DETAILED DESCRIPTION

[0034] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] Example 1

[0039] Figures 1 to 9 The present embodiment shows a stroller double lock, comprising a first swinging member 1, a second swinging member 2, a first locking member 3 and a second locking member 4. In the present embodiment, the first swinging member 1 is a supporting joint of the stroller, and the second swinging member 2 is a supporting leg of the stroller.

[0040] The first swinging member 1 is provided with a first mounting groove 5, in which a first locking member 3 is slidably mounted, a first locking portion 6 is provided on the first locking member 3, a first biasing member 7 is installed between the first locking member 3 and the bottom of the first mounting groove 5, and the first biasing member 7 is suitable for applying a biasing force to the first locking member 3 to move out of the first mounting groove 5. In this embodiment, the first locking member 3 is a gear, the first locking portion 6 is a locking tooth, and a plurality of locking teeth are evenly distributed along the circumferential direction on the side of the first locking member 3.

[0041] The second swinging member 2 is rotatably connected to the first swinging member 1. A second mounting groove 8 is provided on a side of the second swinging member 2 facing the first swinging member 1. The second mounting groove 8 is arranged opposite to the first mounting groove 5. At least two second locking portions 9 are arranged on the second mounting groove 8. The first locking portion 6 is suitable for locking with the second locking portion 9. A pressing member 10 is installed on the second swinging member 2. The pressing member 10 passes through the second swinging member 2 and abuts against the first locking member 3. In this embodiment, the second locking portion 9 is a locking groove, and the locking teeth are arranged in a one-to-one correspondence with the locking grooves. In order to improve the stability of the first locking member 3 in the first mounting groove 5 and prevent the first locking member 3 from being unable to align with the second locking portion 9 after rotating in the first mounting groove 5, an auxiliary groove is arranged in the first mounting groove 5, and the auxiliary groove is arranged in a one-to-one correspondence with the locking teeth on the first locking member as the first locking portion.

[0042] One end of the second locking member 4 is rotatably mounted on the second swinging member 2, and the other end extends toward the pressing member 10 to cover the pressing member 10. A second biasing member 11 is installed between the second locking member 4 and the second swinging member 2. The second biasing member 11 is suitable for applying a biasing force to the second locking member 4 to keep the second locking member 4 covering the pressing member 10. The second biasing member 11 is a second reset elastic member, one end of which is connected to the second swinging member 2, and the other end is connected to the second locking member 4. In this embodiment, the second reset elastic member is a torsion spring, and a blocking block 12 is provided on the side of the second locking member 4 facing the second swinging member 2, one end of the torsion spring is connected to the second swinging member 2, and the other end abuts against the blocking block 12. In some other embodiments, the second reset elastic member can also be a tension spring, one end of which is fixedly connected to the second swinging member 2, and the other end is fixedly connected to the second locking member 4.

[0043] In order to improve the stability of the movement of the second locking member 4 during the rotation and resetting process of the torsion spring, an arc groove serving as the first arc portion 13 is provided on the surface of the second locking member 4 facing the second swinging member 2, and an arc block serving as the second arc portion 14 is provided on the second swinging member 2. The arc groove and the arc block are slidably engaged with each other, and the center of the arc groove coincides with the axis of rotation of the second locking member 4 relative to the second swinging member 2.

[0044] In order to improve the stability of the installation position of the torsion spring itself during the operation, a third installation groove 17 is further provided on the side of the second locking member 4 facing the second swinging member 2, and the torsion spring as the second biasing member 11 is installed in the third installation groove 17. A rotating hole is provided in the third installation groove 17, and an installation shaft 18 is provided between the second locking member 4 and the second swinging member 2. In this embodiment, the installation shaft 18 is fixedly connected to the second swinging member 2, and the torsion spring is sleeved and installed on the installation shaft 18.

[0045] In order to prevent the pressing member 10 from falling off from the second swinging member 2, a limit buckle 15 is provided at one end of the pressing member 10 facing the first locking member 3, and the limit buckle 15 is suitable for locking and limiting with the second mounting groove 8. The pressing member 10 has an abutment column on one side facing the first locking member 3 and a pressing button on the other side.

[0046] In order to facilitate the operation of the second locking member 4 to rotate it, an operating block 16 is provided at the edge of the second locking member 4 facing away from the second swinging member 2. In this embodiment, the second locking member 4 rotates counterclockwise relative to the second swinging member 2 when unlocking, so the operating block 16 is provided on the right side of the second locking member 4. In some other embodiments, the second locking member 4 rotates clockwise relative to the second swinging member 2 when unlocking; the operating block 16 can also be provided on the left side or the middle of the second locking member 4, or one operating block 16 is provided on both the left and right sides.

[0047] In the locked state, under the biasing force of the first biasing member 7, the first locking member 3 is pushed out of the first mounting groove 5, so that the first locking portion 6 on one side of the first locking member 3 cooperates with the second locking portion 9 in the second mounting groove 8 to lock the relative positions of the first swinging member 1 and the second swinging member 2. At this time, the second locking member 4 is kept in the state of covering the pressing member 10 under the biasing force of the second biasing force. When the two-way lock of the cart is to be unlocked, the second locking member 4 is manually pushed to overcome the biasing force of the second biasing member 11, so that the second locking member 4 moves away from the position of the pressing member 10, and then the pressing member 10 is pressed to overcome the biasing force of the first biasing member 7 so that the first locking member 3 retreats to the inside of the first mounting groove 5, so that the first locking portion 6 and the second locking portion 9 are separated and unlocked, so that the first swinging member 1 and the second swinging member 2 are unlocked and can rotate freely. By separating the components of the two unlocking steps in the double-lock structure, only the second locking member 4 and the pressing member 10 are used for shielding to avoid accidental touching of the pressing member 10. When unlocking, it is only necessary to push the second locking member 4 aside and then press the pressing member 10.

[0048] As an alternative embodiment, the second biasing member may also be a thrust mechanism such as a servo electric cylinder, an electric cylinder, an electric push rod, etc., which can apply a biasing force to the second locking member.

[0049] As an alternative embodiment, the first locking member is a cylindrical locking block, a locking protrusion as a first locking part is provided on the side of the locking block, and two locking grooves as second locking parts are provided on one side of the second mounting groove. When the locking protrusion cooperates and locks with one of the locking grooves, the first swing member and the second swing member are in an unfolded state, and when the locking protrusion cooperates and locks with the other locking groove, the first swing member and the second swing member are in a folded state.

[0050] Example 2

[0051] Fig.10 The present embodiment shows a baby stroller provided with the two-way lock of the stroller described in Embodiment 1. The two-way lock of the stroller is installed on both sides of the support joint of the baby stroller. In other embodiments, the two-way lock of the stroller can also be installed on one side of the support joint.

[0052] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A two-way lock for a trolley, characterized in that: include: A first swinging member (1) is provided with a first mounting groove (5), a first locking member (3) is slidably mounted in the first mounting groove (5), a first locking portion (6) is provided on the first locking member (3), a first biasing member (7) is installed between the first locking member (3) and the bottom of the first mounting groove (5), and the first biasing member (7) is suitable for applying a biasing force on the first locking member (3) to move toward the outside of the first mounting groove (5); A second swinging member (2) is rotatably connected to the first swinging member (1); a second mounting groove (8) is provided on a side of the second swinging member (2) facing the first swinging member (1); the second mounting groove (8) is arranged opposite to the first mounting groove (5); a second locking portion (9) is provided on the second mounting groove (8); the first locking portion (6) is suitable for locking with the second locking portion (9); a pressing member (10) is installed on the second swinging member (2); the pressing member (10) passes through the second swinging member (2) and abuts against the first locking member (3); A second locking member (4) has one end rotatably mounted on the second swinging member (2), and the other end extends toward the pressing member (10) to cover the pressing member (10). A second biasing member (11) is installed between the second locking member (4) and the second swinging member (2). The second biasing member (11) is suitable for applying a biasing force to the second locking member (4) so ​​that the second locking member (4) keeps covering the pressing member (10).

2. The two-way lock for a trolley according to claim 1, characterized in that: The second biasing member (11) is a second resetting elastic member, one end of which is connected to the second swinging member (2), and the other end of which is connected to the second locking member (4).

3. The two-way lock for a trolley according to claim 2, characterized in that: The second resetting elastic member is a torsion spring, and a blocking block (12) is provided on a side of the second locking member (4) facing the second swinging member (2); one end of the torsion spring is connected to the second swinging member (2), and the other end abuts against the blocking block (12).

4. The two-way lock for a trolley according to any one of claims 1 to 3, characterized in that: The second locking member (4) is provided with a first arc-shaped portion (13), and the second swinging member (2) is provided with a second arc-shaped portion (14); the first arc-shaped portion (13) and the second arc-shaped portion (14) are slidably engaged with each other, and the center of the first arc-shaped portion (13) coincides with the axis of rotation of the second locking member (4) relative to the second swinging member (2).

5. The two-way lock for a trolley according to any one of claims 1 to 3, characterized in that: The first locking portion (6) is a locking tooth, and a plurality of the locking teeth are evenly distributed along the circumferential direction on the side surface of the first locking member (3); the second locking portion (9) is a locking groove, and the locking teeth are arranged in a one-to-one correspondence with the locking groove.

6. The two-way lock for a trolley according to any one of claims 1 to 3, characterized in that: A limiting buckle (15) is provided at one end of the pressing member (10) facing the first locking member (3), and the limiting buckle (15) is suitable for being engaged with the second mounting groove (8) for limiting position.

7. The two-way lock for a trolley according to any one of claims 1 to 3, characterized in that: An operating block (16) is provided on a surface of the second locking member (4) facing away from the second swinging member (2).

8. The two-way lock for a trolley according to any one of claims 1 to 3, characterized in that: A third mounting groove (17) is provided on a surface of the second locking member (4) facing the second swinging member (2), and the second biasing member (11) is mounted in the third mounting groove (17).

9. The two-way lock for a trolley according to any one of claims 1 to 3, characterized in that: A mounting shaft (18) is provided between the second locking member (4) and the second swinging member (2); the mounting shaft (18) is fixedly connected to the second locking member (4) or the second swinging member (2); and the second biasing member (11) is sleeved and mounted on the mounting shaft (18).

10. A baby stroller, characterized in that: A cart double lock according to any one of claims 1 to 9.

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