Rotary unlocking device for seat

Abstract

The utility model relates to the technical field of child safety seats, and discloses a seat rotary unlocking device which comprises an automatic unlocking lock pin and a plug pin, and the automatic unlocking lock pin comprises an unlocking power source and an unlocking limiting part; the bolt is provided with a locking and unlocking limiting pressing block matched with the unlocking limiting part, one end of the bolt is provided with an inserting part, the other end of the bolt is connected with a recovery device to drive the bolt to return, and the unlocking limiting part makes contact with or is separated from the limiting pressing block so as to drive the bolt to be unlocked or locked under the driving of the unlocking power source. According to the seat rotary unlocking device and the seat, the number of seat rotary unlocking structures is reduced, the number of used materials is small, installation is convenient, the assembling labor cost is reduced, rapid unlocking with one hand can be achieved, manual unlocking and electric unlocking are achieved, two different unlocking modes are provided, and unlocking convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of child safety seat technology, and in particular to a seat rotation unlocking device. Background Technology

[0002] The statements in this section are merely to provide background information related to the disclosure of this utility model and do not necessarily constitute prior art.

[0003] Existing swivel chairs typically have the locking mechanism located on the seat base, with the unlocking and rotation buttons also located on the base. This requires one hand to unlock and the other to rotate the chair, necessitating two-handed operation. This results in insufficient convenience for consumers.

[0004] In the prior art, Chinese patent application publication number CN119189814A, entitled "A Manual Rotation Structure, Method and Child Safety Seat for an Electric Rotating Seat," discloses this type of rotating seat. Its rotating seat unlocking structure, both manual and electric, is complex, with a large number of parts, complicated installation process, high assembly cost, and operability needs to be improved. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a seat rotation unlocking device that reduces the number of seat rotation unlocking structures, uses less material, is easy to install, reduces assembly labor costs, enables quick unlocking with one hand, and has both manual and electric unlocking, providing two different unlocking methods and increasing the convenience of unlocking.

[0006] The technical solution adopted in this utility model is: a seat rotation unlocking device, comprising:

[0007] Automatic unlocking pin, the automatic unlocking pin including an unlocking power source and an unlocking limiting part, the unlocking limiting part having a limiting protrusion; and

[0008] The pin has locking and unlocking limiting blocks that cooperate with the unlocking limiting part, and one end of the pin has a plug-in part, while the other end of the pin is connected to a restoring device to drive the pin back to its original position.

[0009] Wherein: the unlocking limiting part contacts or separates from the limiting pressure block, so as to drive the pin to unlock or lock under the drive of the unlocking power source.

[0010] In this technical solution, the pin can be manually unlocked by pulling it directly or by pulling the flexible connecting device connected to the other end of the pin.

[0011] In this technical solution, the connection structure between the limiting pressure block and the pin, and the connection structure between the limiting protrusion of the unlocking limiting part and the unlocking limiting part, can also be designed as a fixed integral structure or as a detachable plug-in structure.

[0012] In this technical solution, one end of the unlocking limiting part is engaged with the unlocking power source through a linear gear, and the other end of the unlocking limiting part contacts the limiting pressure block to drive the pin to unlock or lock.

[0013] In this technical solution, a sensing pressure plate is provided in the insertion and removal direction of the pin; the sensing pressure plate is disconnected from or in contact with the sensing device to indicate the open or closed state of the pin.

[0014] In this technical solution, the sensing device has a normally closed sensing terminal that cooperates with the sensing pressure plate. The normally closed sensing terminal closes or opens under the pressure of the sensing pressure plate.

[0015] In this technical solution, the automatic unlocking pin and the latch are fixed on the turntable, and the seat rotation unlocking device also includes a slot on the seat base that is stationary relative to the turntable. The slot is used for the insertion part to be inserted and fixed.

[0016] In this technical solution, a pin mounting slot and an unlocking pin mounting slot are configured on the turntable, which are used to place the automatic unlocking pin and the pin, respectively.

[0017] In this technical solution, the seat rotation unlocking device also includes a flexible connecting device connected to the other end of the pin for manual unlocking.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Reduced number of seat rotation unlocking mechanisms: Only automatic unlocking pins, latches, and restoration devices are needed to achieve both automatic and manual unlocking, reducing the amount of materials used, making installation easier, and lowering assembly labor costs.

[0020] 2. Quick unlocking with one hand: The rotary locking pin and electric unlocking mechanism are located on a turntable, with a rotation stop groove on the base. A motor drives the automatic unlocking pin to move back and forth via linear gears, thus unlocking the seat. The locking pin is connected to the seat body via a flexible connection device. The seat body is fixed to the turntable, so when unlocking, the hand is already on the seat body; applying force directly rotates the seat body and the turntable, achieving one-handed unlocking.

[0021] In summary, the seat rotation unlocking device of this utility model reduces the number of seat rotation unlocking structures, uses less material, is easy to install, reduces assembly labor costs, enables quick unlocking with one hand, and provides two different unlocking methods, including manual and electric unlocking, thus increasing unlocking convenience. Attached Figure Description

[0022] Figure 1 A structural diagram of one embodiment of a rotary unlocking device mounted on a seat;

[0023] Figure 2 A three-dimensional structural diagram of one embodiment of a rotary unlocking device;

[0024] Figure 3 for Figure 2 Enlarged view of point A;

[0025] Figure 4 A three-dimensional structural diagram of the automatic unlocking locking pin 10 and latch 20 from another direction;

[0026] Figure 5 A three-dimensional structural diagram of one embodiment of the automatic unlocking lock pin 10;

[0027] Figure 6 This is a structural diagram showing the automatic unlocking positions of the automatic unlocking locking pin 10 and the latch 20 when the sensing device 40 is disconnected.

[0028] Figure 7 This is a structural diagram showing the automatic locking positions of the automatic unlocking pin 10 and the latch 20 when the sensing device 40 is closed.

[0029] Figure 8 This is a diagram showing the mounting structure of linear gear 13 on the turntable.

[0030] Figure 9 This is a diagram showing the installation structure of the main body assembly 100 and the turntable 30.

[0031] Figure 10 Diagram showing the initial locked position of the seat rotation unlocking device;

[0032] Figure 11 A structural diagram showing the position of the seat rotation unlocking device when it automatically unlocks;

[0033] Figure 12 A diagram showing the structural position of the seat rotation unlocking device when manually unlocked;

[0034] Wherein: 10-Automatic unlocking pin, 11-Unlocking power source, 12-Unlocking limit part, 12a-Limiting protrusion, 13-Straight gear; 20-Pin, 21-Limiting pressure block, 22-Plug-in part, 23-Induction pressure plate; 30-Turntable, 31-Pin mounting slot, 32-Unlocking pin mounting slot, 33-Rotating gear; 40-Induction device, 41-Normally closed induction terminal; 50-Slot, 60-Rotating lock pin compression spring, 70-Flexible connection device; 100-Main body assembly. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," and "right," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the combination or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, in the description of the embodiments of this utility model, the positional relationships of devices such as "upper," "lower," "front," "rear," "left," and "right" in all figures are based on... Figure 1 As the standard.

[0037] like Figure 3As shown, the seat rotation unlocking device includes an automatic unlocking pin 10, a latch 20, and a return device 60. The automatic unlocking pin 10 includes an unlocking power source 11 and an unlocking limiting part 12, the unlocking limiting part 12 having a limiting protrusion 12a. The latch 20 has a locking and unlocking limiting block 21 that cooperates with the unlocking limiting part 12, and one end of the latch 20 has a plug-in part 22, the other end of the latch 20 is connected to drive the latch 20 back to its original position, wherein: the limiting protrusion 12a of the unlocking limiting part 12 contacts or separates from the limiting block 21, so as to drive the latch 20 to unlock or lock under the drive of the unlocking power source 11. This utility model discloses a seat rotation unlocking device with a reduced number of unlocking components. It only requires an automatic unlocking pin 10, a latch 20, and a return device 60. The automatic unlocking pin 10 includes an unlocking power source 11 and an unlocking limit part 12. The latch 20 is provided with a locking and unlocking limit block 21 that cooperates with the unlocking limit part 12, and has a plug-in part 22 at one end. This enables both automatic and manual unlocking, using less material, facilitating installation, and reducing assembly labor costs. The return device 60 ensures that when the unlocking power source 11 of the automatic unlocking pin 10 is not activated, when the latch limit block 21 is released, the unlocking limit part 12 no longer presses against the limit block 21. Instead, under the restoring action of the rotating pin spring 60, the latch 20 is pulled, thereby causing the flexible connecting device 70 to automatically return to the slot 50 for locking.

[0038] In at least one embodiment, in order to better implement the unlocking device, the connection structure between the limiting block 21 and the pin 20 and the connection structure between the limiting protrusion 12a and the unlocking limiting part 12 can be designed as a fixed integral structure or as a detachable plug-in structure. The unlocking limiting part 12 and the limiting protrusion 12a can also be designed as a fixed integral structure or as a detachable plug-in structure, both of which can meet the design requirements of the unlocking device.

[0039] In at least one embodiment, the pin 20 can be manually unlocked by pulling it directly or by pulling the flexible connecting device 70 connected to the other end of the pin 20. That is, when manually unlocking, the pin 20 can be pulled directly to unlock and return the device 60 to its original position, or the pin 20 can be connected via other flexible connecting devices 70, and manual unlocking and return can be achieved by pulling the other flexible connecting devices 70.

[0040] In at least one embodiment, one end of the unlocking limiting part 12 is driven by the unlocking power source 11 via a linear gear 13, and the other end of the unlocking limiting part 12 contacts the limiting pressure block 21 to drive the pin 20 to unlock or lock. In this embodiment, the unlocking power source 11 of the automatic unlocking pin 10 uses a linear gear 13 to drive the unlocking limiting part 12. This allows the unlocking limiting part 12 to move with a relatively small load on the linear gear 13, thereby driving the limiting pressure block 21 of the pin 20 to insert the pin 20 into the corresponding slot 50. Compared to the pin-type unlocking method of the prior art, a lower power unlocking power source 11 can be used. The unlocking power source 11 can be a motor, cylinder, hydraulic cylinder, etc., during implementation.

[0041] In practical implementation, the linear gear 13 is fixed on the turntable 30, and the linear gear 13 engages with the automatic unlocking locking pin 10 via threads, such as... Figure 8 and Figure 5 When the linear gear 13 rotates and drives the automatic unlocking pin 10 downward through the thread, it pushes the latch 20 to retract in the turntable 30, disengaging the sensing device 40 and achieving electric unlocking. Figure 6 and Figure 11 As shown; when the linear gear 13 rotates and drives the unlocking limit part to move upward, the pin 20 extends out of the turntable 30 due to the action of the rotating locking pin spring 60, and the sensing device 40 closes to achieve electric locking, as shown. Figure 7 .

[0042] The linear gear 13 is fixed to the turntable 30. The automatic unlocking pin 10 moves left or right under the drive of the linear gear 13, thereby causing the latch 20 to extend or retract within the turntable 30. The thread inside the automatic unlocking pin 10 engages with the thread on the smooth rod of the linear gear 13. The rotation of the smooth rod on the linear gear 13 controls the left and right movement of the automatic unlocking pin 10 via the thread. Figure 3 , Figure 4 and Figure 6 As shown. This results in a lower load on the linear gear 13, allowing for the use of a smaller motor.

[0043] In at least one embodiment, such as Figure 3 As shown, a sensing pressure plate 23 is provided in the insertion and removal direction of the pin 20; the sensing pressure plate 23 is disconnected from or in contact with the sensing device 40 to indicate the open or closed state of the pin 20, thereby realizing the indication of the locking and unlocking state of the seat rotation unlocking device.

[0044] In at least one embodiment, the sensing device 40 has a normally closed sensing terminal 41 that cooperates with the sensing pressure plate 23. The normally closed sensing terminal 41 closes or opens under the pressure of the sensing pressure plate 23, thereby automatically indicating the locking and unlocking status of the pin 20 and the slot.

[0045] In at least one embodiment, the automatic unlocking pin 10 and the latch 20 are fixed on the turntable 30. The seat rotation unlocking device further includes a slot 50 disposed on the seat base that is stationary relative to the turntable 30. The slot 50 provides a place for the insertion part 22 to be inserted and fixed. In this invention, the automatic unlocking pin 10 and the latch 20 are both mounted on the turntable 30, and the slot 50 is disposed on the seat base that is stationary relative to the turntable 30. Therefore, when the power source 11 is switched on, or the flexible connecting device 70 mounted on the latch 20 is pulled to remove the insertion part 22 of the latch 20 from the slot 50, the seat body and the turntable 30 can be rotated. Since the hand is already on the body when unlocking the pin, a simple force application can directly rotate the body and the turntable, meaning that unlocking and rotating the turntable can be achieved with one hand, making operation convenient. In the prior art, the unlocking rotation button of the seat rotation unlocking device is on the base, requiring one hand to unlock and the other to rotate the body assembly 100 (e.g., Figure 9 (As shown) unlocking can be achieved, such as Figure 10 The diagram shows the structure of the seat rotation unlocking device in the initial locked position.

[0046] In practical operation, the seat rotation unlocking device of this utility model has two unlocking methods. One is automatic unlocking. After automatic unlocking, simply turn the unlocking power source 11 on or off, and the automatic unlocking locking pin 10 can press or release the limiting block 21 of the pin 20 to achieve locking and unlocking. The other method is to use a flexible connecting device 70 to pull the insertion part 22 of the pin 20 out of the slot 50 on the stationary seat base to achieve unlocking. The flexible connecting device 70 can be a steel wire rope, cable rope, or other rope, flexible and slender connecting mechanism, as long as it can achieve long-distance flexible driving, or it can be made of other materials with certain tensile strength. Whether it is automatic unlocking or manual unlocking, it only requires one-handed operation, making unlocking convenient and quick.

[0047] In at least one embodiment, such as Figure 6 As shown, the turntable 30 is provided with a pin mounting slot 31 and an unlocking pin mounting slot 32, which are used to place the automatic unlocking pin 10 and the pin 20, respectively, so as to facilitate the positioning and unlocking and locking of the automatic unlocking pin 10 and the pin 20, and a reasonable locking space is set.

[0048] In at least one embodiment, the seat rotation unlocking device further includes a flexible connecting device 70 connected to the other end of the latch 20 for manual unlocking. In specific implementations, the flexible connecting device 70 can be made of steel wire, steel cable, or other materials with certain tensile strength. Figure 12 The diagram shows the structure of the seat rotation unlocking device in the manual unlocking position.

[0049] In at least one embodiment, such as Figure 7 As shown, the recovery device 60 can be a spring, a cylinder, a hydraulic cylinder, or a linkage and cam mechanism. The spring can be a tension spring, compression spring, torsion spring, air spring, etc. The cylinder or hydraulic cylinder needs to be reasonably arranged in terms of space during installation. The linkage and cam mechanism can also drive the pin 20 to achieve the return motion.

[0050] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A seat swivel unlocking device characterized by comprising: The application relates to a seat rotation unlocking device. The automatic unlocking bolt (10) comprises an unlocking power source (11) and an unlocking limiting part (12) provided with a limiting protrusion (12a); and The bolt (20) is provided with locking and unlocking limiting blocks (21) matched with the unlocking limiting part (12), and one end of the bolt (20) is provided with a plug-in part (22), and the other end of the bolt (20) is connected with a restoring device (60) to drive the bolt (20) back to the original position, Wherein: the limiting protrusion (12a) is in contact with or separated from the limiting block (21) to drive the bolt (20) to be unlocked or locked under the driving of the unlocking power source (11).

2. The seat rotation unlocking device according to claim 1, characterized by: The bolt (20) is directly pulled to be manually unlocked or manually unlocked by pulling the flexible connecting device (70) connected to the other end of the bolt (20).

3. The seat rotation unlocking device according to claim 1, characterized by: The connecting structure of the limiting block (21) and the bolt (20) and the connecting structure of the limiting protrusion (12a) of the unlocking limiting part (12) and the unlocking limiting part (12) are fixed integral structures or detachable plug-in structures.

4. The seat rotation unlocking device according to claim 2, characterized by: The end of the unlocking limiting part (12) is engaged with the unlocking power source (11) through a straight gear (13) to drive.

5. The seat rotation unlocking device according to claim 3, characterized by: The bolt (20) is provided with a sensing pressing plate (23) in the plug-in direction of the bolt (20); the sensing pressing plate (23) is disconnected or contacted with a sensing device (40) to indicate the opening or closing state of the bolt (20).

6. The seat rotation unlocking device according to claim 5, characterized by: The sensing device (40) is provided with a normally closed sensing terminal (41) matched with the sensing pressing plate (23), and the normally closed sensing terminal (41) is closed or opened under the pressure action of the sensing pressing plate (23).

7. The seat rotation unlocking device according to claim 5, characterized by: The automatic unlocking bolt (10) and the bolt (20) are fixed on a rotating disc (30), and the seat rotation unlocking device further comprises a slot (50) arranged on a seat base opposite to the rotating disc (30), and the slot (50) is used for fixing the plug-in part (22) after the plug-in part (22) is inserted.

8. The seat rotation unlocking device according to claim 7, characterized by: The rotating disc (30) is provided with a bolt mounting groove (31) and an unlocking bolt mounting groove (32) for placing the automatic unlocking bolt (10) and the bolt (20) respectively.

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