Seat electric rotation locking structure, mode and child safety seat

Abstract

The application provides a seat electric rotary locking structure, a mode and a child safety seat, which comprise a base, a rotary disc, a rotary assembly, a rotary positioning locking assembly, a circuit board, a first signal sensor, a second signal sensor and a third signal sensor. The rotary disc is rotated relative to the base through the driving of the power assembly, and the locking state of the rotary positioning locking assembly is controlled through the release lock motor. The initial position and the required adjustment position of the rotary disc are respectively locked through the cooperation of the locking bolt with the first angle gear hole and the second angle gear hole, and the child safety seat is locked when it is completely in place through the control of the first signal sensor, the second signal sensor and the third signal sensor, so that the rotary disc is accurately locked at the required adjustment position, the safety of the child safety seat is improved, the structure is simple and reliable, the yield is high, the noise is small, and the seat rotation is stable and orderly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile safety products, in particular to a seat electric rotary locking structure, a method and a child safety seat. BACKGROUND

[0002] With the continuous upgrading of consumer demand, more and more parents begin to pay attention to the safety of children riding in child seats, and put forward higher requirements for the convenience of seat operation, such as electric control of seat rotary structure. However, the existing seat electric rotary structure on the market may have the problem of incomplete rotation, which causes the seat to be unable to be normally locked, causing the concern of consumers. SUMMARY

[0003] To solve at least one of the above problems, the present application first provides a seat electric rotary locking structure, which comprises a base, a rotary disc, a rotary assembly, a rotary positioning and locking assembly, a circuit board and a third signal sensor triggered by the rotary disc, the rotary disc is rotatably connected with the base, the rotary assembly, the rotary positioning and locking assembly and the third signal sensor are all connected with the base; the rotary positioning and locking assembly comprises a locking bolt, a release switch, a release motor and a first signal sensor triggered by the locking bolt, the rotary disc is provided with a first angle gear hole and a second angle gear hole, the first angle gear hole and the second angle gear hole are adapted to be selectively matched with the locking bolt, when the locking bolt is matched with the first angle gear hole to be locked, the rotary disc is in an initial position, and when the locking bolt is matched with the second angle gear hole to be locked, the rotary disc is in a required adjustment position; the rotary assembly comprises a power assembly and a second signal sensor triggered by the release switch, the release motor, the first signal sensor, the power assembly, the second signal sensor and the third signal sensor are all electrically connected with the circuit board, and the power assembly is in transmission connection with the rotary disc to drive the rotary disc to rotate relative to the base.

[0004] Optionally, the first angle gear hole (51) and the second angle gear hole (52) are arranged at intervals, and the rotary disc is further provided with a third angle gear hole, which is located between the first angle gear hole and the second angle gear hole.

[0005] Optionally, the power assembly comprises a rotary motor and a drive gear connected with each other, and the rotary disc is provided with a gear ring engaged with the drive gear.

[0006] Optionally, the rotary positioning and locking assembly comprises a mounting seat, the first signal sensor and the second signal sensor are both mounted in the mounting seat, and the locking bolt and the release switch are both movably mounted in the mounting seat.

[0007] Optionally, the rotating positioning and locking assembly further comprises a reset member installed in the mounting base, and two ends of the reset member are connected with the mounting base and the locking pin respectively.

[0008] Optionally, the locking pin is provided with a pushing block adapted to abut against the release switch, and the release switch can push the locking pin to move to disengage the locking pin from the first angle position hole after the release switch is rotated to abut against the pushing block; and when the release switch is disengaged from the pushing block and the locking pin is aligned with the second angle position hole of the rotating disc, the locking pin is reset and pops out to lock with the second angle position hole under the action of the reset member.

[0009] Optionally, the release switch is provided with a first guide surface, and the pushing block is provided with a second guide surface, and the first guide surface abuts against the second guide surface after the locking pin is completely disengaged from the first angle position hole; and when the release switch is rotated again, the first guide surface can slide relative to the second guide surface to disengage the release switch from the pushing block.

[0010] Compared with the prior art, the seat electric rotating and locking structure in the application can rotate the rotating disc relative to the base through the driving of the power assembly, control the locking state of the rotating positioning and locking assembly through the release motor, lock the initial position and the required adjustment position of the rotating disc through the cooperation of the locking pin with the first angle position hole and the second angle position hole respectively, and ensure that the seat can be locked when it is completely in place during electric rotation through the control of the first signal sensor, the second signal sensor and the third signal sensor, so that the rotating disc can be accurately locked at the required adjustment position, the safety of the child safety seat is improved, the structure is simple and reliable, the yield is high, the noise is small, and the seat rotates smoothly and orderly.

[0011] In addition, the application provides a seat electric rotation locking mode based on the seat electric rotation locking structure, comprising the following steps: when the rotating disc is in the initial position, the locking pin is locked with the first angle position hole of the rotating disc; when a preset rotation angle signal is received, the release switch is driven to rotate by starting the work of the release motor, and the release switch is separated from the second signal sensor; the locking pin is moved back by the release switch, and the release motor is stopped when the first signal sensor is triggered by the locking pin, at this time, the locking pin is separated from the first angle position hole, and the rotating disc is rotated by starting the work of the power assembly; when the rotating disc rotates for a period of time, the release switch is separated from the locking pin by starting the work of the release motor, and the release motor is stopped when the second signal sensor is triggered by the release switch; when the rotating disc rotates to the preset rotation angle, the third signal sensor is triggered by the rotating disc, the power assembly is stopped, the locking pin is aligned with the second angle position hole of the rotating disc, and the locking pin is reset and popped out to be locked with the second angle position hole under the action of the reset member, so that the rotating disc is adjusted to the required adjustment position.

[0012] Optionally, when the rotating disc rotates for a period of time, the release switch is rotated by starting the work of the release motor, comprising the following steps: determining whether a third angle position hole is arranged between the first angle position hole and the second angle position hole in the preset rotation angle stroke range of the rotating disc, if not, the release motor is started after the first angle position hole is arranged to be staggered with the locking pin; if yes, the number of the third angle position holes is detected, the third signal sensor is powered off in the stroke range from the first angle position hole to the last third angle position hole of the rotating disc, the third signal sensor is powered on after the last third angle position hole is rotated, and the release motor is started.

[0013] Compared with the prior art, the seat electric rotation locking mode has the same advantages as the seat electric rotation locking structure, which will not be repeated here.

[0014] In addition, the application also provides a child safety seat comprising the seat electric rotation locking structure.

[0015] Compared with the prior art, the child safety seat has the same advantages as the seat electric rotation locking structure, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1An exploded view of the seat electric rotary locking structure of an embodiment of the present application;

[0017] Figure 2 An exploded view of the rotary positioning locking assembly of an embodiment of the present application;

[0018] Figure 3 A perspective view of the seat electric rotary locking structure of an embodiment of the present application when the rotary disc is in the initial position;

[0019] Figure 4 An internal structure view of the rotary positioning locking assembly of an embodiment of the present application when the rotary disc is in the initial position;

[0020] Figure 5 An internal structure view of the rotary positioning locking assembly of an embodiment of the present application when the release motor is started to work and rotates the release switch;

[0021] Figure 6 An internal structure view of the rotary positioning locking assembly of an embodiment of the present application when the release switch pushes the locking bolt to move to trigger the first signal inductor;

[0022] Figure 7 A perspective view of the seat electric rotary locking structure of an embodiment of the present application when the rotary disc is between the initial position and the required adjustment position;

[0023] Figure 8 An internal structure view of the rotary positioning locking assembly of an embodiment of the present application when the release motor is started to work again and rotates the release switch to trigger the second signal inductor after the rotary disc is rotated for a period of time;

[0024] Figure 9 A perspective view of the seat electric rotary locking structure of an embodiment of the present application when the rotary disc is in the required adjustment position;

[0025] Figure 10 An internal structure view of the rotary positioning locking assembly of an embodiment of the present application before the rotary disc is rotated to the required adjustment position;

[0026] Figure 11 A sectional view of the seat electric rotary locking structure of an embodiment of the present application;

[0027] Figure 12 A partial structure view of the rotary disc and the third signal inductor of another embodiment of the present application.

[0028] Explanation of reference numerals:

[0029] 1, base; 2, rotating positioning locking assembly; 21, locking bolt; 211, pushing block; 212, second guide surface; 22, unlocking switch; 221, first guide surface; 23, unlocking motor; 24, first signal sensor; 25, mounting seat; 26, reset member; 3, rotating assembly; 31, power assembly; 311, rotating motor; 312, driving gear; 32, second signal sensor; 4, third signal sensor; 5, rotating disc; 51, first angle gear hole; 52, second angle gear hole; 53, gear ring. DETAILED DESCRIPTION

[0030] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship when the product is normally used.

[0032] The terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0033] The embodiment of the present application provides a seat electric rotating locking structure, which is combined with Figures 1 to 10 As shown, it comprises a base 1, a rotating disc 5, a rotating assembly 3, a rotating positioning locking assembly 2, a circuit board and a third signal sensor 4 triggered by the rotating disc 5, the rotating disc 5 is rotatably connected with the base 1, the rotating assembly 3, the rotating positioning locking assembly 2 and the third signal sensor 4 are all connected with the base 1; the rotating positioning locking assembly 2 comprises a locking bolt 21, an unlocking switch 22, an unlocking motor 23 and a first signal sensor 24 triggered by the locking bolt 21, the rotating disc 5 is provided with a first angle gear hole 51 and a second angle gear hole 52, the first angle gear hole 51 and the second angle gear hole 52 are adapted to be selectively matched with the locking bolt 21, when the locking bolt 21 is matched with the first angle gear hole 51 for locking, the rotating disc 5 is in an initial position, when the locking bolt 21 is matched with the second angle gear hole 52 for locking, the rotating disc 5 is in a required adjustment position; the rotating assembly 3 comprises a power assembly 31 and a second signal sensor 32 triggered by the unlocking switch 22, the unlocking motor 23, the first signal sensor 24, the power assembly 31, the second signal sensor 32 and the third signal sensor 4 are all electrically connected with the circuit board, the power assembly 31 is drivingly connected with the rotating disc 5 to drive the rotating disc 5 to rotate relative to the base 1.

[0034] The base 1 is fixedly connected to the car seat to provide stable support; the rotating disc 5 is connected to the base 1 through a shaft to enable rotation about the shaft, facilitating the child to get on and off the car and freeing the operator's hands; the power assembly 31 can be an electric motor or other rotating driving device, which is connected in transmission with the rotating disc 5 to realize the rotating function; in the embodiment, the power assembly 31 preferably comprises a rotating motor 311 and a driving gear 312 connected to each other, and the rotating disc 5 is provided with a gear ring 53 engaged with the driving gear 312, so that the rotation of the rotating disc 5 is realized through the engagement of the gear ring 53 and the driving gear 312, which is simple and reliable in structure, and the diameter of the driving gear 312 is smaller than that of the gear ring 53, so that the transmission is labor-saving, the torque of the rotating motor 311 can be increased, and the purpose of small motor with large torque is achieved.

[0035] The first and second angle position holes 51 and 52 are preferably spaced apart from each other, and in addition, the first and second angle position holes 51 and 52 can be at the same position, for example, when the welcome mode of the seat is started, that is, the seat needs to rotate a certain angle from the starting position (corresponding to the first angle position hole 51) and then reverse to the starting position (corresponding to the second angle position hole 52), in this case, it is equivalent that the first and second angle position holes 51 and 52 are located at the same position, that is, the initial position and the required adjustment position can be at one position, but the seat needs to have a rotating action in the process of switching from the initial position to the required adjustment position.

[0036] The locking bolt 21 can be inserted into or withdrawn from the angle position hole on the rotating disc 5 to lock or release the rotating disc 5; the third signal sensor 4 is preferably installed on the base 1, and provides feedback on the rotating state of the seat by sensing the position of the rotating disc 5, and only when the locking bolt 21 is aligned with the second angle position hole 52, the third signal sensor 4 will be triggered; the circuit board is used to control the coordinated work of the release motor 23, the first signal sensor 24, the power assembly 31, the second signal sensor 32 and the third signal sensor 4. The first and second signal sensors 24 and 32 are preferably micro switches, and the third signal sensor 4 is preferably an infrared sensor; in addition, as shown in the drawings, the third signal sensor 4 can also be a micro switch. The circuit board can be powered by a battery pack or an external power supply connected to a plug-in port. Figure 12

[0037] Figure 3 and Figure 4 ​​As shown, the rotating disc 5 is in the initial position, the first signal sensor 24 is not triggered, the second signal sensor 32 is triggered by the release switch 22, and the release motor 23 and the rotating motor 311 are both in the stop state; when the preset rotating angle signal is received, the release motor 23 starts to work and drives the release switch 22 to rotate, and the first signal sensor 24 and the second signal sensor 32 are both not triggered; as shown, Figure 5 and Figure 6 As shown, the release switch 22 rotates to push the locking bolt 21 to move back, and when the locking bolt 21 is separated from the first angle gear hole 51, the locking bolt 21 triggers the first signal sensor 24, the second signal sensor 32 remains in the untriggered state, the release motor 23 stops working to limit the position of the locking bolt 21 by the release switch 22, and the rotating motor 311 starts to work to drive the rotating disc 5 to rotate; after the rotating disc 5 rotates for a period of time, the release motor 23 starts to work again to drive the release switch 22 to rotate, and the locking bolt 21 is separated from the limitation of the release switch 22, but under the pressure of the rotating disc 5, the locking bolt 21 still remains in contact with the first signal sensor 24; as shown, Figure 7 and Figure 8 As shown, when the release switch 22 rotates to trigger the second signal sensor 32, the release motor 23 stops working; the rotating motor 311 continues to work to continue to drive the rotating disc 5 to rotate, and the first signal sensor 24 and the second signal sensor 32 both remain in the triggered state; as shown, Figures 9 to 11 As shown, when the rotating disc 5 rotates to the required adjustment position, the third signal sensor 4 is triggered by the rotating disc 5, and before that, the third signal sensor 4 is in the untriggered state or the power-off state, the first signal sensor 24 is not triggered, the second signal sensor 32 remains in the triggered state, the rotating motor 311 stops working, and the release motor 23 remains in the stop state, at this time, the locking bolt 21 is separated from the limitation of the rotating disc 5 and is temporarily reset to be inserted into the second angle gear hole 52, and the adjustment of the rotating angle of the rotating disc 5 is completed.

[0038] In the seat electric rotating locking structure in the embodiment, the rotating disc 5 is rotated relative to the base 1 by the driving of the power assembly 31, the locking state of the rotating positioning locking assembly 2 is controlled by the release motor 23, the initial position and the required adjustment position of the rotating disc 5 are respectively locked by the cooperation of the locking bolt 21 with the first angle gear hole 51 and the second angle gear hole 52, and the first signal sensor 24, the second signal sensor 32 and the third signal sensor 4 are controlled to ensure that the seat can be locked when it is completely positioned during the electric rotation, to realize the accurate locking of the rotating disc 5 at the required adjustment position, to improve the safety of the child safety seat, and to have the advantages of simple and reliable structure, high yield, small noise and smooth and orderly seat rotation.

[0039] Optionally, the rotating disc 5 is further provided with a third angle gear hole, which is located between the first angle gear hole 51 and the second angle gear hole 52; the first angle gear hole 51, the second angle gear hole 52 and the third angle gear hole are arranged on the rotating disc 5 in a circumferential direction; by arranging the third angle gear hole on the rotating disc 5, the user can select to rotate the seat to an intermediate position between the initial position and the required adjustment position, thereby increasing the angle adjustment options of the rotating disc 5 to meet different use scenarios or user needs.

[0040] Optionally, as shown in Figure 1 , Figure 2 , Figure 4 , the rotating positioning and locking assembly 2 comprises a mounting seat 25, the first signal sensor 24 and the second signal sensor 32 are mounted in the mounting seat 25, and the locking bolt 21 and the release switch 22 are movably mounted in the mounting seat 25. The first signal sensor 24, the second signal sensor 32, the locking bolt 21 and the release switch 22 are mounted in the mounting seat 25, which integrates part of the components of the electric rotating and locking structure of the seat into a unified seat, so that they can move flexibly during the rotation of the seat, improves the compactness and coordination of the whole structure, and also helps to simplify the assembly process and improve the stability of the system. The rotating positioning and locking assembly 2 further comprises a mounting cover connected with the mounting seat 25, so that the first signal sensor 24, the second signal sensor 32, the locking bolt 21 and the release switch 22 can be closed and mounted in the mounting seat 25, preventing external interference.

[0041] Optionally, as shown in Figure 2 , Figure 4 , the rotating positioning and locking assembly 2 further comprises a reset member 26 mounted in the mounting seat 25, and the two ends of the reset member 26 are connected with the mounting seat 25 and the locking bolt 21 respectively; the reset member 26 is preferably a compression spring, and the locking bolt 21 is reset and popped out under the elastic force of the reset member 26, which is simple and reliable in structure.

[0042] Optionally, as shown in Figure 1 , Figure 2 , Figure 3 , the locking bolt 21 is provided with a push block 211 adapted to abut against the release switch 22, and the release switch 22 can push the locking bolt 21 to move after abutting against the push block 211, so that the locking bolt 21 is disengaged from the first angle gear hole 51; when the release switch 22 is disengaged from the push block 211 and the locking bolt 21 is aligned with the second angle gear hole 52 of the rotating disc 5, the locking bolt 21 is reset and popped out under the action of the reset member 26 to cooperate with the second angle gear hole 52 for locking.

[0043] The toggle block 211 is arranged perpendicularly to the moving direction of the locking bolt 21, so as to effectively trigger the first signal sensor 24; the flexible locking and releasing during the electric rotation of the seat is realized through the interaction between the release switch 22 and the locking bolt 21; the abutment between the release switch 22 and the toggle block 211 enables the locking bolt 21 to correctly disengage from the first angle gear hole 51 and reset to the second angle gear hole 52 after the release switch 22 and the toggle block 211 are disengaged, so as to ensure the correct locking of the seat at the required adjustment position.

[0044] Optionally, in combination with Figure 6 As shown, the release switch 22 is provided with a first guide surface 221, and the toggle block 211 is provided with a second guide surface 212, the first guide surface 221 abuts against the second guide surface 212 after the locking bolt 21 completely disengages from the first angle gear hole 51; when the release switch 22 rotates again, the first guide surface 221 can slide relative to the second guide surface 212 to make the release switch 22 and the toggle block 211 disengage from each other. The first guide surface 221 and the second guide surface 212 are both circular arc surfaces, which ensure smooth transition between them, and the guide surface design between the release switch 22 and the toggle block 211 enables controllable guiding and disengaging during the releasing process; through the sliding of the release switch 22 and the mutual disengaging of the toggle block 211, the electric rotation locking structure of the seat can flexibly complete the releasing of the locking bolt 21, and ensure that the locking bolt 21 correctly cooperates with the second angle gear hole 52 when required.

[0045] Another embodiment of the present application provides a seat electric rotation locking mode realized based on the seat electric rotation locking structure as described above, in combination with Figures 3 to 11 As shown, the seat electric rotation locking mode comprises the following steps:

[0046] When the rotating disc 5 is in the initial position, the locking bolt 21 cooperates with the first angle gear hole 51 of the rotating disc 5 to be locked; wherein the initial position refers to the initial position of each adjustment of the rotating angle of the seat, which is not a fixed position relative to the base 1; similarly, the first angle gear hole 51 is not a fixed hole, but refers to the angle gear hole that initially cooperates with the locking bolt 21 during each adjustment of the rotating angle of the seat; the present embodiment describes the seat electric rotation locking mode during the single adjustment of the rotating angle of the seat, and the seat electric rotation locking mode during each subsequent adjustment of the rotating angle of the seat is the same repeated steps, which will not be described again.

[0047] When the preset rotation angle signal is received, the control release motor 23 is started to drive the release switch 22 to rotate, and the release switch 22 is separated from the second signal sensor 32; wherein the preset rotation angle signal is input by the user, which can be a physical button, a touch key, a voice control or an APP input control provided on the seat;

[0048] The release switch 22 pushes the locking bolt 21 to move back, and when the locking bolt 21 triggers the first signal sensor 24, the control release motor 23 stops working, at this time the locking bolt 21 is separated from the first angle gear hole 51, and the power assembly 31 is controlled to start working to drive the rotating disc 5 to rotate;

[0049] When the rotating disc 5 rotates for a period of time, the control release motor 23 is started to drive the release switch 22 to rotate, and the release switch 22 is separated from the locking bolt 21, until the release switch 22 triggers the second signal sensor 32, the control release motor 23 stops working;

[0050] When the rotating disc 5 rotates to the preset rotation angle, the rotating disc 5 triggers the third signal sensor 4, the control power assembly 31 stops working, and the locking bolt 21 is aligned with the second angle gear hole 52 of the rotating disc 5, and is reset and popped out under the action of the reset member 26 to cooperate with the second angle gear hole 52 to lock, realizing the rotating disc 5 adjusting to the required adjustment position.

[0051] The seat electric rotating locking mode in the embodiment, through the driving of the power assembly 31, the rotating disc 5 rotates relative to the base 1, and through the control of the release motor 23 on the locking state of the rotating positioning locking assembly 2, the initial position and the required adjustment position of the rotating disc 5 are respectively locked through the cooperation of the locking bolt 21 with the first angle gear hole 51 and the second angle gear hole 52, and through the control of the first signal sensor 24, the second signal sensor 32 and the third signal sensor 4, it is ensured that the seat can be locked when it is completely in place during electric rotation, the rotating disc 5 is accurately locked at the required adjustment position, the safety of the child safety seat is improved, and the structure is simple and reliable, the yield is high, the noise is small, and the seat rotates stably and orderly.

[0052] Optionally, the rotating disc 5 rotates for a period of time, and the control release motor 23 is started to drive the release switch 22 to rotate, including the steps of:

[0053] If not, the release motor 23 is controlled to start working after the first angle gear hole 51 and the locking bolt 21 are arranged staggeredly, so as to drive the release switch 22 to rotate and make the release switch 22 disengage from the limitation of the locking bolt 21; wherein the first angle gear hole 51 and the locking bolt 21 are arranged staggeredly, so as to ensure that the locking bolt 21 cannot be inserted into the first angle gear hole 51 again.

[0054] If yes, the number of the third angle gear holes is detected, the third signal sensor 4 is controlled to be powered off in the stroke range of the rotating disc 5 from the first angle gear hole 51 to the last third angle gear hole, so as to ensure that the release switch 22 always limits the position of the locking bolt 21 and prevents the locking bolt 21 from being inserted into the third angle gear hole by mistake; the third signal sensor 4 is controlled to be powered on after the last third angle gear hole is rotated, and the release motor 23 is controlled to start working, so as to drive the release switch 22 to rotate and make the release switch 22 disengage from the limitation of the locking bolt 21, so as to prepare for the insertion of the locking bolt 21 into the second angle gear hole 52, that is, when the third signal sensor 4 is triggered, the locking bolt 21 is just aligned with the second angle gear hole 52, so that the locking bolt 21 and the second angle gear hole 52 are accurately matched and locked.

[0055] Another embodiment of the present application provides a child safety seat comprising the seat electric rotary locking structure as described above.

[0056] The seat electric rotary locking structure in the embodiment drives the rotating disc 5 to rotate relative to the base 1 through the driving of the power assembly 31, controls the locking state of the rotary positioning locking assembly 2 through the release motor 23, respectively locks the initial position and the required adjustment position of the rotating disc 5 through the respective matching of the locking bolt 21 and the first angle gear hole 51 and the second angle gear hole 52, and ensures that the seat can be locked when it is completely in place during electric rotation through the control of the first signal sensor 24, the second signal sensor 32 and the third signal sensor 4, so as to accurately lock the rotating disc 5 at the required adjustment position, improve the safety of the child safety seat, and have simple and reliable structure, high yield, small noise and stable and orderly seat rotary work.

[0057] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present application.

Claims

1. A seat electric rotation locking structure, characterized in that, The circuit includes a base (1), a rotating disk (5), a rotating assembly (3), a rotating positioning and locking assembly (2), a circuit board, and a third signal sensor (4) triggered by the rotating disk (5). The rotating disk (5) is rotatably connected to the base (1). The rotating assembly (3), the rotating positioning and locking assembly (2), and the third signal sensor (4) are all connected to the base (1). The rotating positioning and locking assembly (2) includes a locking pin (21), a release switch (22), a release motor (23), and a first signal sensor (24) triggered by the locking pin (21). The rotating disk (5) is provided with a first angle stop hole (51) and a second angle stop hole (52). The first angle stop hole (51) and the second angle stop hole (52) are adapted to be selectively connected to the base (1). The locking pin (21) engages with the first angle stop hole (51) to lock the rotating disk (5) to its initial position. When the locking pin (21) engages with the second angle stop hole (52) to lock the rotating disk (5) to its desired adjustment position, the rotating assembly (3) includes a power assembly (31) and a second signal sensor (32) triggered by the release switch (22). The release motor (23), the first signal sensor (24), the power assembly (31), the second signal sensor (32), and the third signal sensor (4) are all electrically connected to the circuit board. The power assembly (31) is connected to the rotating disk (5) to drive the rotating disk (5) to rotate relative to the base (1). The circuit board is configured as follows: When the rotating disk (5) is in the initial position, the locking pin (21) engages with the first angle stop hole (51) of the rotating disk (5) to lock it; When a preset rotation angle signal is received, the release motor (23) is controlled to start working to drive the release switch (22) to rotate, and the release switch (22) is disengaged from the second signal sensor (32); The release switch (22) pushes the locking pin (21) to move and retract. When the locking pin (21) triggers the first signal sensor (24), the release motor (23) is controlled to stop working. At this time, the locking pin (21) disengages from the first angle stop hole (51) and the power component (31) is controlled to start working to drive the rotating disk (5) to rotate. After the rotating disk (5) rotates for a period of time, the release motor (23) is controlled to start working to drive the release switch (22) to rotate. The release switch (22) disengages from the locking pin (21) until the release switch (22) triggers the second signal sensor (32), at which point the release motor (23) is controlled to stop working. When the rotating disk (5) rotates to the preset rotation angle, the rotating disk (5) triggers the third signal sensor (4) to control the power component (31) to stop working, and the locking pin (21) is aligned with the second angle position hole (52) of the rotating disk (5), and is reset and popped out under the force of the reset member (26) to cooperate with the second angle position hole (52) for locking, so as to realize the adjustment of the rotating disk (5) to the required adjustment position.

2. The electric rotating locking structure for a seat according to claim 1, characterized in that, The first angle stop hole (51) and the second angle stop hole (52) are spaced apart from each other. The rotating disk (5) is also provided with a third angle stop hole, which is located between the first angle stop hole (51) and the second angle stop hole (52).

3. The electric rotating locking structure for a seat according to claim 1, characterized in that, The power assembly (31) includes a rotary motor (311) and a drive gear (312) connected to each other, and the rotary disk (5) is provided with a gear ring (53) that meshes with the drive gear (312).

4. The electric rotating locking structure for a seat according to any one of claims 1-3, characterized in that, The rotary positioning and locking assembly (2) includes a mounting base (25), in which the first signal sensor (24) and the second signal sensor (32) are both installed, and the locking pin (21) and the release switch (22) are both movably installed in the mounting base (25).

5. The electric rotating locking structure for a seat according to claim 4, characterized in that, The rotary positioning and locking assembly (2) further includes a reset member (26) installed in the mounting base (25), and the two ends of the reset member (26) are respectively connected to the mounting base (25) and the locking pin (21).

6. The electric rotating locking structure for a seat according to claim 5, characterized in that, The locking pin (21) is provided with a toggle block (211) suitable for abutting against the release switch (22). After the release switch (22) rotates to abut against the toggle block (211), it can push the locking pin (21) to move so that the locking pin (21) disengages from the first angle stop hole (51). When the release switch (22) and the toggle block (211) disengage from each other and the locking pin (21) is aligned with the second angle stop hole (52) of the rotating disk (5), the locking pin (21) is reset and popped out under the force of the reset member (26) to lock with the second angle stop hole (52).

7. The electric rotating locking structure for a seat according to claim 6, characterized in that, The release switch (22) is provided with a first guide surface (221), and the toggle block (211) is provided with a second guide surface (212). When the locking pin (21) is completely disengaged from the first angle stop hole (51), the first guide surface (221) abuts against the second guide surface (212). When the release switch (22) is rotated again, the first guide surface (221) can slide relative to the second guide surface (212) so that the release switch (22) and the toggle block (211) disengage from each other.

8. The electric rotating locking structure for a seat according to claim 1, characterized in that, The circuit board is also configured to: Determine whether the rotary disk (5) has a third angle stop hole between the first angle stop hole (51) and the second angle stop hole (52) within the preset rotation angle travel range. If not, control the release motor (23) to start working after the first angle stop hole (51) and the locking pin (21) are set to be offset. If so, the number of the third angle gear holes is detected, and the third signal sensor (4) is de-energized within the travel range of the rotating disk (5) from the first angle gear hole (51) to the last third angle gear hole. After the last third angle gear hole is rotated, the third signal sensor (4) is energized and the release motor (23) is started.

9. A child safety seat, characterized in that, Includes the electric rotating locking structure for seats as described in any one of claims 1-7.

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