Rotary two-lock device and baby carriage

Abstract

The utility model relates to the technical field of infants, in particular to a rotary two-lock device and a baby carriage. The rotary double-lock device comprises a first swing part, a second swing part, a first locking part and a second locking part. In the operation process, unlocking operation can be completed only by rotating and pressing the second locking piece, due to the fact that the rotating direction is perpendicular to the force application direction of clamping connection of the limiting step and the edge of the limiting hole, tight clamping connection of the limiting step and the limiting hole can still be guaranteed during long-term work, the first locking piece is unlocked through pressing, and the locking effect is good. And the possibility that the first locking piece is unlocked by mistaken touch is greatly reduced. And after the external force is removed, the second locking piece and the first locking piece can be locked under the action of the second bias pressing piece and the first bias pressing piece respectively, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of infants and young children, and in particular to a rotating two-way lock device and a baby carriage. Background Art

[0002] In order to facilitate the storage of baby strollers when not in use, current baby strollers are generally designed to be foldable. When folded, the baby stroller is small in size and easy to store. In order to prevent the locked state of the baby stroller from being unlocked due to accidental touch during use, the folding and unfolding operations of the baby stroller need to be combined with a two-way lock structure to ensure the folding stability of the baby stroller.

[0003] The two-way lock in the prior art is usually realized by using multiple sets of buckles and slots to cooperate with each other, and multiple sets of buckles and slots need to cooperate in the unlocking and locking process. After the two-way lock performs multiple unlocking and locking actions, the buckle and the slot will be misaligned, resulting in reduced stability of the locking structure between the buckle and the slot, and there is a risk of accidental opening. 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 structure in the prior art that the stability is reduced after long-term use, thereby providing a rotating two-way lock device and a baby stroller.

[0005] In order to solve the above technical problems, the utility model provides a rotating two-way lock device, 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] A 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, at least two second locking parts are provided on the second mounting groove, and the first locking part is suitable for locking with the second locking part;

[0008] The second locking member is rotatably mounted on a side of the second swinging member away from the first swinging member, and an unlocking leg is provided on the side of the second locking member facing the first swinging member, a limiting step is provided on one side of the unlocking leg, a limiting hole is provided on the second swinging member, and the unlocking leg passes through the limiting hole and extends into the second mounting groove, and the second locking member is rotated relative to the second swinging member so that the second locking member has a locked state and an unlocked state, the limiting step is engaged with the limiting hole in the locked state, and the limiting step is aligned with the limiting hole in the unlocked state; a second biasing member is installed between the second locking member and the second swinging member, and the second biasing member is suitable for applying a biasing force to the second locking member to change from the unlocked state to the locked state.

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

[0010] Optionally, the elastic reset member is a reset spring sheet, which is installed on one side of the unlocking leg, one end of the reset spring sheet is connected to the second locking member, and the other end is abutted against the limiting hole.

[0011] Optionally, a third mounting groove is provided on a side of the second swinging member facing the second locking member, and the second locking member is mounted in the third mounting groove.

[0012] Optionally, an operating protrusion is arranged on a surface of the second locking member facing away from the second swinging member.

[0013] Optionally, a limit buckle is provided at the end of the unlocking leg, and the limit buckle is suitable for penetrating the second swinging member and then engaging with the second mounting groove for limit position.

[0014] 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.

[0015] Optionally, an auxiliary groove is provided in the first installation groove, and the auxiliary groove is provided in a one-to-one correspondence with the locking teeth.

[0016] Optionally, the first biasing member is a spring, one end of the spring abuts against the second mounting groove, and the other end of the spring abuts against the first locking member.

[0017] The utility model also provides a baby carriage, which is provided with the rotating two-way lock device of the utility model.

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

[0019] 1. The utility model provides a rotary two-way lock device. In the locked state, the first locking member moves to the outside of the first mounting groove under the action of the first biasing force, so that the first locking portion on the first locking member can enter the second mounting groove and cooperate with the second locking portion in the second mounting groove to lock, thereby realizing the locking of the first swinging member and the second swinging member. At the same time, the second locking member rotates to the locked state, and under the action of the biasing force of the second biasing member, the second locking member can maintain the locked state. When the rotary two-way lock needs to be unlocked, the second locking member is rotated to the unlocked state by external force, so that the limiting step is aligned with the limiting hole, so that the limiting step is no longer limited, and at this time, the second locking member is pressed down, so that the unlocking leg pushes the first locking member downward to overcome the biasing force of the first biasing member, so that the first biasing member completely retreats to the inside of the first mounting groove, so that the first locking portion and the second locking portion are separated and unlocked, and then the first swinging member can rotate relative to the second swinging member to complete the unlocking. By making the second locking member rotate and cooperate with the second swinging member, the unlocking leg, the limiting boss and the second biasing member cooperate to realize the two-way operation of the unlocking process of the two-way lock device. During operation, the unlocking operation can be completed by simply rotating and pressing the second locking member. Since the rotation direction is perpendicular to the force direction of the clamping connection between the limiting step and the edge of the limiting hole, the tight clamping connection between the limiting step and the limiting hole can still be ensured during long-term operation, and the possibility of the first locking member being unlocked by accident is greatly reduced by unlocking the first locking member by pressing. After the external force is removed, the second locking member and the first locking member can be locked again under the action of the second biasing member and the first biasing member respectively, and the operation is simple and convenient.

[0020] 2. The utility model provides a rotating two-way lock device, in which the elastic reset member is a reset spring sheet, which is installed on one side of the unlocking leg, one end of which is connected to the second locking member, and the other end is in contact with the limiting hole. When the two-way lock device needs to be unlocked, the second locking member is rotated by external force, so that the reset spring sheet abuts against the inner wall of the limiting hole to generate a trend that causes the second locking member to change from an unlocked state to a locked state. When the two-way lock is re-locked, it is only necessary to remove the external force applied to the second locking member, and the reset spring sheet can drive the second locking member to reset, which is simple and convenient to operate.

[0021] 3. The utility model provides a rotating two-way lock device, in which a third mounting groove is provided on a side of the second swinging member facing the second locking member, and the second locking member is installed in the third mounting groove, so that the second locking member is hidden in the third mounting groove. At the same time, the third mounting groove is used to limit the rotation direction of the second locking member, thereby improving the stability of the rotation of the second locking member and the overall aesthetics of the two-way lock device.

[0022] 4. The rotating double-locking device provided by the utility model has a limit buckle provided at the end of the unlocking leg, and the limit buckle is suitable for penetrating the second swinging member and engaging with the second mounting groove to limit the position, so as to improve the stability of the second locking member rotating relative to the second swinging member and prevent the second locking member from falling off when rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 It is a schematic diagram of the internal structure of the rotating double-way lock provided in the embodiment of the utility model.

[0025] Figure 2 A schematic structural diagram of a second swinging member provided in an embodiment of the present utility model.

[0026] Figure 3 A schematic structural diagram of another angle of the second swinging member provided in an embodiment of the present invention.

[0027] Figure 4 A schematic structural diagram of a second locking portion provided in an embodiment of the present utility model.

[0028] Figure 5 A schematic structural diagram of a first swinging member provided in an embodiment of the present utility model.

[0029] Figure 6 A schematic diagram of the installation position of the first biasing member provided in an embodiment of the utility model.

[0030] Figure 7 A schematic structural diagram of the cooperative installation of a first locking member and a first swinging member provided in an embodiment of the utility model.

[0031] Figure 8 An internal schematic diagram of a two-way lock for a cart provided in an embodiment of the utility model.

[0032] Fig. 9 A schematic structural diagram of a baby stroller provided in an embodiment of the present utility model.

[0033] Explanation of the accompanying drawings: 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. Second biasing member; 11. Unlocking leg; 12. Limiting step; 13. Limiting hole; 14. Limiting buckle; 15. Operating protrusion; 16. Third mounting groove; 17. Auxiliary groove. 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 invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, 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 8 The figure shows a rotating two-way lock device provided by the present embodiment, comprising a first swinging member 1, a second swinging member 2, a first locking member 3 and a second locking member 4. The rotating two-way lock device in the present embodiment is used for a baby stroller, the first swinging member 1 is a supporting joint of the baby stroller, and the second swinging member 2 is one of the folding legs of the baby 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, and the second locking portion 9 is a locking groove, and the locking teeth are arranged one-to-one with the locking groove. In order to improve the stability of the first locking member 3 installed in the first mounting groove 5 and prevent the first locking member 3 from rotating in the first mounting groove 5, an auxiliary groove 17 is provided in the first mounting groove 5, and the auxiliary groove 17 is arranged one-to-one with the locking teeth. In this embodiment, the first biasing member 7 is a spring, one end of the spring abuts against the second mounting groove 8, and the other end abuts against the first locking member 3. In some other embodiments, the first biasing member 7 can also be an elastic reset member such as a spring, a tension spring, a torsion spring, or a thrust mechanism such as a servo cylinder, an electric cylinder, an electric push rod, etc. that can apply a biasing force to the second locking member 4.

[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 aligned with 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 cooperating with the second locking portion 9 for locking. The second locking member 4 is rotatably mounted on a side of the second swinging member 2 away from the first swinging member 1. The second locking member 4 includes a rotating turntable and an unlocking leg 11 arranged on one side of the rotating turntable. The unlocking leg 11 is arranged on the side of the second locking member 4 facing the first swinging member 1. A limiting step 12 is arranged on one side of the unlocking leg 11. A limiting hole 13 is arranged on the second swinging member 2. The unlocking leg 11 passes through the limiting hole 13 and extends into the second mounting groove 8. The second locking member 4 rotates relative to the second swinging member so that the second locking member has a locked state and an unlocked state. In the locked state, the limiting step 12 is engaged with the limiting hole 13, and in the unlocked state, the limiting step 12 is aligned with the limiting hole 13. A second biasing member 10 is installed between the second locking member 4 and the second swinging member 2. The second biasing member 10 is suitable for applying a biasing force to the second locking member 4 to change from the unlocked state to the locked state. In this embodiment, the second biasing member 10 is an elastic reset member, one end of which is connected with the second locking member 4 and the other end is connected with the second swinging member 2. Specifically, the elastic reset member is a reset spring, which is installed on one side of the unlocking leg 11, one end of which is connected to the second locking member 4, and the other end of which is in contact with the limiting hole 13. In some other embodiments, the second biasing member 10 can also be a spring, a tension spring, a torsion spring or other elastic reset member, or a servo electric cylinder, an electric cylinder, an electric push rod or other thrust mechanism capable of applying a biasing force to the second locking member 4.

[0042] In this embodiment, the second locking member 4 rotates counterclockwise relative to the second swinging member 2 when unlocking, so the reset spring is arranged on the counterclockwise side of the unlocking leg 11, and the limiting step 12 is arranged on the clockwise side of the unlocking leg 11. In some other embodiments, the second locking member 4 rotates clockwise relative to the second swinging member 2 when unlocking, the reset spring is arranged on the clockwise side of the unlocking leg 11, and the limiting step 12 is arranged on the counterclockwise side of the unlocking leg 11.

[0043] In order to improve the stability of the second locking member 4 during the rotation process, a circular third mounting groove 16 is provided on the side of the second swinging member 2 facing the second locking member 4, and the second locking member 4 is installed in the third mounting groove 16, so that the second locking member 4 is built in the third mounting groove 16, and the third mounting groove 16 is used to limit the rotation of the second locking member 4. For easy operation, an operating protrusion 15 is provided on the side of the second locking member 4 facing away from the second swinging member 2, and the operating protrusion 15 is arranged at the middle position of the second locking member 4. In order to prevent the second locking member 4 from falling off the second swinging member 2, a limiting buckle 14 is provided at the end of the unlocking leg 11 of the second locking member 4, and the limiting buckle 14 is suitable for passing through the second swinging member 2 and engaging with the second mounting groove 8 for limiting position.

[0044] In the locked state, the first locking member 3 moves to the outside of the first mounting groove 5 under the action of the first biasing force, so that the first locking portion 6 on the first locking member 3 can enter the second mounting groove 8 and lock with the second locking portion 9 in the second mounting groove 8, thereby realizing the locking of the first swing member 1 and the second swing member 2. At the same time, the second locking member 4 rotates to the locked state, and under the action of the biasing force of the second biasing member 10, the second locking member 4 can maintain the locked state. When the rotary two-way lock needs to be unlocked, the second locking member 4 is rotated to the unlocked state by external force, so that the limiting step 12 is aligned with the limiting hole 13, so that the limiting step 12 is no longer limited, and at this time, the second locking member 4 is pressed down, so that the unlocking leg 11 pushes the first locking member 3 downward to overcome the biasing force of the first biasing member 7, so that the first biasing member 7 is completely retracted into the first mounting groove 5, so that the first locking portion 6 is separated from the second locking portion 9 and unlocked, and then the first swing member 1 can rotate relative to the second swing member 2 to complete the unlocking. By rotating and cooperating the second locking member 4 with the second swinging member 2, and cooperating the unlocking leg 11, the limiting boss and the second biasing member 10, the two-step operation of the two-step lock device unlocking process is realized. During the operation, the unlocking operation can be completed by rotating and pressing the second locking member 4. After the external force is removed, the second locking member 4 and the first locking member 3 can be locked again under the action of the second biasing member 10 and the first biasing member 7 respectively. The operation is simple and convenient.

[0045] 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.

[0046] Example 2

[0047] Fig. 9 The present embodiment shows a baby stroller provided by the present embodiment, which has the rotating two-way lock device described in Embodiment 1. The rotating two-way lock is installed on both sides of the support joint of the baby stroller. In other embodiments, the rotating two-way lock can also be installed on one side of the support joint.

[0048] 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 invention.

Claims

1. A rotating double lock device, 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); and the first locking portion (6) is suitable for being locked in cooperation with the second locking portion (9); The second locking member (4) is rotatably mounted on a side of the second swinging member (2) away from the first swinging member (1); an unlocking leg (11) is arranged on a side of the second locking member (4) facing the first swinging member (1); a limiting step (12) is arranged on one side of the unlocking leg (11); a limiting hole (13) is arranged on the second swinging member (2); the unlocking leg (11) passes through the limiting hole (13) and extends into the second mounting groove (8); the second locking member (4) rotates relative to the second swinging member (2) so that the second locking member (4) has a locked state and an unlocked state; in the locked state, the limiting step (12) is engaged with the limiting hole (13); in the unlocked state, the limiting step (12) is aligned with the limiting hole (13); a second biasing member (10) is arranged between the second locking member (4) and the second swinging member (2); the second biasing member (10) is suitable for applying a biasing force to the second locking member (4) to change from the unlocked state to the locked state.

2. The rotary double-way lock device according to claim 1, characterized in that: The second biasing member (10) is an elastic reset member, one end of which is cooperatively connected to the second locking member (4), and the other end of which is cooperatively connected to the second swinging member (2).

3. The rotary double-way lock device according to claim 2, characterized in that: The elastic reset member is a reset spring sheet, which is mounted on one side of the unlocking leg (11), one end of which is connected to the second locking member (4) and the other end of which is in contact with the limiting hole (13).

4. The rotary double-way lock device according to any one of claims 1 to 3, characterized in that: A third installation groove (16) is provided on a side of the second swinging member (2) facing the second locking member (4), and the second locking member (4) is installed in the third installation groove (16).

5. The rotary double-way lock device according to claim 4, characterized in that: An operating protrusion (15) is provided on a surface of the second locking member (4) facing away from the second swinging member (2).

6. The rotary double-way lock device according to any one of claims 1 to 3, characterized in that: A limit buckle (14) is provided at the end of the unlocking leg (11), and the limit buckle (14) is suitable for penetrating the second swinging member (2) and then being locked with the second mounting groove (8) for limit position.

7. The rotary double-way lock device 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.

8. The rotary double-way lock device according to claim 7, characterized in that: An auxiliary groove (17) is arranged in the first installation groove (5), and the auxiliary groove (17) is arranged in a one-to-one correspondence with the locking teeth.

9. The rotary double-way lock device according to any one of claims 1 to 3, characterized in that: The first biasing member (7) is a spring, one end of which abuts against the second mounting groove (8), and the other end of which abuts against the first locking member (3).

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

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