Electric seat rotation locking structure and mode and child safety seat

Abstract

Provided in the present invention are an electric seat rotation locking structure and mode and a child safety seat. The electric seat rotation locking structure comprises a base, a rotation disc, a rotation assembly, a rotation positioning locking assembly, a circuit board, a first signal sensor, a second signal sensor and a third signal sensor. In the present invention, by means of the driving of a power assembly, the rotation disc rotates with respect to the base; by means of an unlocking motor, the locking state of the rotation positioning locking assembly is controlled; by means of the fitting of a locking pin and a first angle position hole and the fitting of the locking pin and a second angle position hole, an initial position and a required adjustment position of the rotation disc are respectively locked; and controlling the first signal sensor, the second signal sensor and the third signal sensor ensures that a seat can be electrically rotated completely in place and then is locked, accurately locking the rotation disc to the required adjustment position, improving the safety of the child safety seat, and achieving a simple and reliable structure, a high rate of finished products, low noise, and stable and orderly seat rotating operation.

Description

A seat electric rotation locking structure and method and child safety seat Technical Field

[0001] The present invention relates to the technical field of automobile safety products, and in particular to a seat electric rotation locking structure and method and a child safety seat. Background Art

[0002] As consumer demands continue to evolve, more and more parents are concerned about the safety of their children in child seats and are placing higher demands on seat operation convenience, such as electric seat rotation mechanisms. However, existing electric seat rotation mechanisms on the market may not rotate fully, resulting in the seat not being able to lock properly, causing consumer concern. Summary of the Invention

[0003] In order to solve at least one aspect of the above problems, the present invention first provides an electric rotation locking structure for a seat, comprising a base, a rotating disk, a rotating assembly, a rotation positioning locking assembly, a circuit board and a third signal sensor triggered by the rotating disk, wherein the rotating disk is rotationally connected to the base, and the rotating assembly, the rotation positioning locking assembly and the third signal sensor are all connected to the base; the rotation positioning locking assembly comprises a locking pin, a release switch, a release motor and a first signal sensor triggered by the locking pin, the rotating disk is provided with a first angle gear hole and a second angle gear hole, the first angle gear hole and The second angular gear hole is suitable for selectively cooperating with the locking pin. When the locking pin cooperates with the first angular gear hole and is locked, the rotating disk is in the initial position. When the locking pin cooperates with the second angular gear hole and is locked, the rotating disk is in the desired adjustment position. The rotating assembly includes 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 to the circuit board. The power assembly is in transmission connection with the rotating disk to drive the rotating disk to rotate relative to the base.

[0004] Optionally, the first angle shift hole (51) and the second angle shift hole (52) are spaced apart from each other, and a third angle shift hole is further provided on the rotating disk, and the third angle shift hole is located between the first angle shift hole and the second angle shift hole.

[0005] Optionally, the power assembly includes a rotating motor and a driving gear connected to each other, and the rotating disk is provided with a ring gear meshing with the driving gear.

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

[0007] Optionally, the rotational positioning locking assembly further includes a reset member installed in the mounting seat, and two ends of the reset member are respectively connected to the mounting seat and the locking pin.

[0008] Optionally, the locking latch is provided with a toggle block suitable for abutting against the release switch, and the release switch can push the locking latch to move after it is rotated to abut against the toggle block so that the locking latch is disengaged from the first angular gear hole; when the release switch and the toggle block are disengaged from each other and the locking latch is aligned with the second angular gear hole of the rotating disk, the locking latch is reset and popped out under the action of the reset member to cooperate with the second angular gear hole for locking.

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

[0010] Compared with the prior art, the electric rotation locking structure of the seat in the present invention drives the rotating disk relative to the base through the drive of the power component, and controls the locking state of the rotation positioning locking component through the release motor, and locks the initial position and the required adjustment position of the rotating disk respectively through the cooperation of the locking pin with the first angle gear hole and the second angle gear hole, and controls the first signal sensor, the second signal sensor and the third signal sensor to ensure that the seat can be locked when it is fully in place during electric rotation, so that the rotating disk can be accurately locked at the required adjustment position, thereby improving the safety of the child safety seat, and the structure is simple and reliable, the yield is high, the noise is low, and the seat rotates smoothly and orderly.

[0011] In addition, the present invention provides an electric rotation locking method for a seat based on the electric rotation locking structure of the seat as described above, including the following steps: when the rotating disk is in the initial position, the locking pin cooperates with the first angle gear hole of the rotating disk to lock; when a preset rotation angle signal is received, the release motor is controlled to start working to drive the release switch to rotate, and the release switch is disengaged from the second signal sensor; the release switch pushes the locking pin to move and retract, and when the locking pin triggers the first signal sensor, the release motor is controlled to stop working, at which time the locking pin is disengaged from the first angle gear hole, and the power component is controlled to start working to drive The rotary disk is driven to rotate; when the rotary disk rotates for a period of time, the release motor is controlled to start working to drive the release switch to rotate, and the release switch is disengaged from the locking latch until the release switch triggers the second signal sensor, and the release motor is controlled to stop working; when the rotary disk rotates to the preset rotation angle, the rotary disk triggers the third signal sensor, controls the power component to stop working, and the locking latch is aligned with the second angle gear hole of the rotary disk, and is reset and popped out under the action of the reset member to cooperate with the second angle gear hole to lock, so that the rotary disk is adjusted to the desired adjustment position.

[0012] Optionally, after the rotating disk rotates for a period of time, controlling the release motor to start working to drive the release switch to rotate includes the following steps: judging whether a third angle gear hole is provided between the first angle gear hole and the second angle gear hole of the rotating disk within the preset rotation angle range; if not, controlling the release motor to start working after the first angle gear hole and the locking pin are staggered; if yes, detecting the number of the third angle gear holes, controlling the third signal sensor to be powered off within the range of rotation of the rotating disk from the first angle gear hole to the last third angle gear hole, controlling the third signal sensor to be powered on after passing the last third angle gear hole, and controlling the release motor to start working.

[0013] Compared with the prior art, the electric rotation locking method of the seat described in the present invention has the same advantages as the above-mentioned electric rotation locking structure of the seat over the prior art, which will not be repeated here.

[0014] In addition, the present invention also provides a child safety seat, comprising the seat electric rotation locking structure as described above.

[0015] Compared with the prior art, the child safety seat of the present invention and the above-mentioned electric rotation locking structure of the seat have the same advantages over the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is an exploded view of a seat electric rotation locking structure according to an embodiment of the present invention;

[0017] FIG2 is an exploded view of a rotation positioning locking assembly according to an embodiment of the present invention;

[0018] FIG3 is a perspective view of the electric rotation locking structure of a seat according to an embodiment of the present invention when the rotating disk is in an initial position;

[0019] FIG4 is a diagram showing the internal structure of the rotation positioning locking assembly according to an embodiment of the present invention when the rotating disk is in the initial position;

[0020] FIG5 is a diagram showing the internal structure of the rotary positioning locking assembly according to an embodiment of the present invention when the release motor is started and drives the release switch to rotate;

[0021] FIG6 is a diagram illustrating the internal structure of the rotary positioning locking assembly according to an embodiment of the present invention when the release switch pushes the locking pin to move to trigger the first signal sensor;

[0022] 7 is a perspective view of the electric rotation locking structure of a seat according to an embodiment of the present invention when the rotating disk is between the initial position and the desired adjustment position;

[0023] FIG8 is a diagram illustrating the internal structure of the rotary positioning locking assembly according to an embodiment of the present invention when the release motor starts working again after the rotary disk rotates for a period of time and drives the release switch to rotate until the second signal sensor is triggered;

[0024] 9 is a perspective view of the electric rotation locking structure of a seat according to an embodiment of the present invention when the rotating disk is in a desired adjustment position;

[0025] FIG10 is a diagram illustrating the internal structure of the rotation positioning locking assembly according to an embodiment of the present invention before the rotating disk is rotated to the desired adjustment position;

[0026] FIG11 is a cross-sectional view of a seat electric rotation locking structure according to an embodiment of the present invention;

[0027] FIG. 12 is a partial structural diagram of the cooperation between the rotating disk and the third signal sensor according to another embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1. Base; 2. Rotational positioning locking assembly; 21. Locking pin; 211. Toggle block; 212. Second guide surface; 22. Release switch; 221. First guide surface; 23. Release motor; 24. First signal sensor; 25. Mounting seat; 26. Reset member; 3. Rotational assembly; 31. Power assembly; 311. Rotational motor; 312. Drive gear; 32. Second signal sensor; 4. Third signal sensor; 5. Rotating disk; 51. First angle gear hole; 52. Second angle gear hole; 53. Ring gear. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the positions or location relationships during normal use of the product.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0033] An embodiment of the present invention provides an electric rotation locking structure for a seat, as shown in Figures 1 to 10, comprising a base 1, a rotating disk 5, a rotating assembly 3, a rotation positioning locking assembly 2, a circuit board, and a third signal sensor 4 triggered by the rotating disk 5, wherein the rotating disk 5 is rotationally connected to the base 1, and the rotating assembly 3, the rotation positioning locking assembly 2, and the third signal sensor 4 are all connected to the base 1; the rotation positioning locking assembly 2 comprises a locking pin 21, a release switch 22, a release motor 23, and a first signal sensor 24 triggered by the locking pin 21, and the rotating disk 5 is provided with a first angle gear hole 51 and a second angle gear hole 52, wherein the first angle gear hole 51 and the second The angular gear hole 52 is suitable for selectively cooperating with the locking pin 21. When the locking pin 21 cooperates and locks with the first angular gear hole 51, the rotating disk 5 is in the initial position. When the locking pin 21 cooperates and locks with the second angular gear hole 52, the rotating disk 5 is in the 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 transmission-connected to the rotating disk 5 to drive the rotating disk 5 to rotate relative to the base 1.

[0034] Among them, the base 1 is fixedly connected to the car seat to provide stable support; the rotating disk 5 is connected to the base 1 by an axis, so that it can rotate around the axis, which is convenient for children to get on and off the car and frees the operator's hands; the power component 31 can be a motor or other rotating drive device, which realizes the rotation function through a transmission connection with the rotating disk 5; in this embodiment, the power component 31 preferably includes a rotating motor 311 and a driving gear 312 connected to each other, and the rotating disk 5 is provided with a ring gear 53 meshing with the driving gear 312. The rotation of the rotating disk 5 is realized by the engagement of the ring gear 53 with the driving gear 312. The structure is simple and reliable, and the diameter of the driving gear 312 is smaller than the diameter of the ring gear 53, so the transmission is labor-saving, and the torque of the rotating motor 311 can be increased to achieve the purpose of small motor and large torque.

[0035] The first angle shift hole 51 and the second angle shift hole 52 are preferably spaced apart from each other. In addition, the first angle shift hole 51 and the second angle shift hole 52 can also be in the same position. For example, when the welcome mode of the seat is started, the seat needs to be rotated a certain angle from the starting position (corresponding to the first angle shift hole 51) and then rotated back to the starting position (corresponding to the second angle shift hole 52). In this case, it is equivalent to the first angle shift hole 51 and the second angle shift hole 52 being in the same position, which means that the initial position and the required adjustment position can be the same position, but the seat needs to rotate during the process of switching from the initial position to the required adjustment position.

[0036] The locking pin 21 can be inserted into or out of the angle position hole on the rotating disk 5, thereby locking or releasing the rotating disk 5; the third signal sensor 4 is preferably installed on the base 1, and provides feedback on the seat rotation status by sensing the position of the rotating disk 5. The third signal sensor 4 will only be triggered when the locking pin 21 is aligned with the second angle position hole 52; the circuit board is used to control the release motor 23, the first signal sensor 24, the power assembly 31, the second signal sensor 32 and the third signal sensor 4 to coordinate their work. The first signal sensor 24 and the second signal sensor 32 are preferably micro switches, and the third signal sensor 4 is preferably an infrared sensor; in addition, as shown in Figure 12, 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 the power socket.

[0037] As shown in Figures 3 and 4, when the rotating disk 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 a stopped state; when the preset rotation angle signal is received, the release motor 23 starts working and drives the release switch 22 to rotate, and the first signal sensor 24 and the second signal sensor 32 are not triggered; as shown in Figures 5 and 6, the release switch 22 is rotated to push the locking pin 21 to move and retract, when the locking pin 21 is disengaged from the first angle gear hole 51, the locking pin 21 triggers the first signal sensor 24, and the second signal sensor 32 remains in an untriggered state, the release motor 23 stops working to allow the release switch 22 to limit the position of the locking pin 21, and the rotating motor 311 starts working to drive the rotating disk 5 to rotate; after the rotating disk 5 rotates for a period of time, the release motor 23 starts working again to drive the release switch 22 to rotate, and the locking pin 2 1 is released from the restraint of the release switch 22, but under the heavy pressure of the rotating disk 5, the locking pin 21 remains in contact with the first signal sensor 24. As shown in Figures 7 and 8, when the release switch 22 is rotated 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 disk 5 to rotate, and the first signal sensor 24 and the second signal sensor 32 remain in the triggered state. As shown in Figures 9 to 11, when the rotating disk 5 rotates to the desired adjustment position, the third signal sensor 4 is triggered by the rotating disk 5. Prior to this, the third signal sensor 4 was in an untriggered state or a power-off state, the first signal sensor 24 was not triggered, and the second signal sensor 32 remained triggered. The rotating motor 311 stops working, and the release motor 23 remains in a stopped state. At this time, the locking pin 21 is released from the restraint of the rotating disk 5 and is instantly reset and inserted into the second angle gear hole 52, completing the adjustment of the rotation angle of the rotating disk 5.

[0038] The electric rotation locking structure of the seat in this embodiment drives the rotating disk 5 relative to the base 1 through the drive of the power component 31, and controls the locking state of the rotation positioning locking component 2 through the release motor 23. The initial position and the required adjustment position of the rotating disk 5 are locked respectively by the cooperation of the locking pin 21 with the first angle gear hole 51 and the second angle gear hole 52 respectively. 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 fully in place during electric rotation, so that the rotating disk 5 is accurately locked in the required adjustment position, thereby improving the safety of the child safety seat. The structure is simple and reliable, the yield is high, the noise is low, and the seat rotates smoothly and orderly.

[0039] Optionally, a third angle shift hole is further provided on the rotating disk 5, and the third angle shift hole is located between the first angle shift hole 51 and the second angle shift hole 52; the first angle shift hole 51, the second angle shift hole 52 and the third angle shift hole are circumferentially spaced on the rotating disk 5; by setting the third angle shift hole on the rotating disk 5, the user can choose to rotate the seat to an intermediate position between the initial position and the desired adjustment position, thereby increasing the angle adjustment option of the rotating disk 5 to meet different usage scenarios or user needs.

[0040] Optionally, as shown in Figures 1, 2, and 4, the rotational positioning locking assembly 2 includes a mounting seat 25, in which the first signal sensor 24 and the second signal sensor 32 are both mounted, and the locking latch 21 and the release switch 22 are both movably mounted. The first signal sensor 24, the second signal sensor 32, the locking latch 21, and the release switch 22 are mounted in the mounting seat 25, integrating some components of the electric rotation locking structure of the seat into a unified seat to ensure that they can move flexibly during the seat rotation process, thereby improving the compactness and coordination of the entire structure, simplifying the assembly process, and improving the stability of the system. The rotational positioning locking assembly 2 also includes a mounting cover interconnected with the mounting seat 25, so that the first signal sensor 24, the second signal sensor 32, the locking latch 21, and the release switch 22 can be enclosed and mounted in the mounting seat 25 to prevent external interference.

[0041] Optionally, in combination with Figures 2 and 4, the rotational positioning locking assembly 2 also includes a reset member 26 installed in the mounting seat 25, and the two ends of the reset member 26 are respectively connected to the mounting seat 25 and the locking pin 21; the reset member 26 is preferably a compression spring, and the locking pin 21 is instantly reset and popped out under the elastic force of the reset member 26, and the structure is simple and reliable.

[0042] Optionally, in combination with Figures 1, 2 and 3, the locking pin 21 is provided with a toggle block 211 suitable for abutting against the release switch 22. After the release switch 22 is rotated to abut against the toggle block 211, it can push the locking pin 21 to move so that the locking pin 21 is disengaged from the first angular gear hole 51; when the release switch 22 and the toggle block 211 are disengaged from each other and the locking pin 21 is aligned with the second angular gear hole 52 of the rotating disk 5, the locking pin 21 is reset and popped out under the action of the reset member 26 to cooperate with the second angular gear hole 52 for locking.

[0043] Among them, the toggle block 211 is arranged perpendicular to the moving direction of the locking pin 21, so that the toggle block 211 can effectively trigger the first signal sensor 24; through the interaction between the release switch 22 and the locking pin 21, flexible locking and releasing are achieved during the electric rotation of the seat; the abutment between the release switch 22 and the toggle block 211 enables the locking pin 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 is disengaged from the toggle block 211, to ensure that the seat is correctly locked when it is in the required adjustment position.

[0044] Optionally, as shown in FIG6 , 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 angular shift 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 to disengage the release switch 22 from the toggle block 211. Both the first guide surface 221 and the second guide surface 212 are arcuate surfaces, ensuring a smooth transition between them. The guide surface design between the release switch 22 and the toggle block 211 enables controllable guidance and disengagement during the release process. Through the sliding of the release switch 22 and the disengagement of the toggle block 211, the electric seat rotation locking structure can flexibly release the locking pin 21, ensuring that the locking pin 21 is properly engaged with the second angular shift hole 52 when required.

[0045] Another embodiment of the present invention provides a seat electric rotation locking method based on the seat electric rotation locking structure as described above, as shown in conjunction with Figures 3 to 11, including the steps of:

[0046] When the rotating disk 5 is in the initial position, the locking pin 21 engages and locks with the first angle-shift hole 51 of the rotating disk 5; the initial position refers to the initial position each time the seat rotation angle is adjusted, and is not a fixed position relative to the base 1; similarly, the first angle-shift hole 51 is not a fixed hole, but refers to the angle-shift hole that initially engages with the locking pin 21 each time the seat rotation angle is adjusted; this embodiment describes the electric seat rotation locking method during a single seat rotation angle adjustment; the electric seat rotation locking method repeats the same steps for each subsequent seat rotation angle adjustment, and will not be repeated here.

[0047] 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 preset rotation angle signal is input by the user, which can be a physical button set on the seat, a touch button, voice control, or input control via an app;

[0048] 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, and the locking pin 21 is disengaged from the first angle gear hole 51. The power assembly 31 is controlled to start working to drive the rotating disk 5 to rotate.

[0049] 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, and the release switch 22 is disengaged from the locking latch 21. When the release switch 22 triggers the second signal sensor 32, the release motor 23 is controlled to stop working.

[0050] When the rotating disk 5 rotates to the preset rotation angle, the rotating disk 5 triggers the third signal sensor 4, controls the power assembly 31 to stop working, and the locking pin 21 aligns with the second angle gear hole 52 of the rotating disk 5, and resets and pops out under the action of the reset member 26 to lock with the second angle gear hole 52, so that the rotating disk 5 is adjusted to the desired adjustment position.

[0051] The electric rotation locking method of the seat in this embodiment drives the power component 31 to rotate the rotating disk 5 relative to the base 1, and controls the locking state of the rotation positioning locking component 2 through the release motor 23, and locks the initial position and the required adjustment position of the rotating disk 5 respectively through the cooperation of the locking pin 21 with the first angle gear hole 51 and the second angle gear hole 52, and controls the first signal sensor 24, the second signal sensor 32 and the third signal sensor 4 to ensure that the seat can be locked when it is fully in place during electric rotation, so that the rotating disk 5 is accurately locked in the required adjustment position, thereby improving the safety of the child safety seat, and the structure is simple and reliable, the yield is high, the noise is low, and the seat rotates smoothly and orderly.

[0052] Optionally, after the rotating disk 5 rotates for a period of time, controlling the release motor 23 to start working to drive the release switch 22 to rotate includes the following steps:

[0053] determining whether a third angular shift hole is provided between the first angular shift hole 51 and the second angular shift hole 52 of the rotating disk 5 within the preset rotation angle range; if not, controlling the release motor 23 to start working after the first angular shift hole 51 and the locking latch 21 are staggered, so as to drive the release switch 22 to rotate, so that the release switch 22 is released from the restriction on the locking latch 21; wherein the first angular shift hole 51 and the locking latch 21 are staggered to ensure that the locking latch 21 is not reinserted into the first angular shift hole 51;

[0054] If yes, the number of the third angle gear holes is detected, and the third signal sensor 4 is controlled to be powered off within the travel range of the rotating disk 5 from the first angle gear hole 51 to the last third angle gear hole, ensuring that the release switch 22 always limits the position of the locking pin 21 to prevent the locking pin 21 from being mistakenly inserted into the third angle gear hole; after rotating through the last third angle gear hole, the third signal sensor 4 is controlled to be powered on, and the release motor 23 is controlled to start working, so as to drive the release switch 22 to rotate, so that the release switch 22 is free from the restriction on the locking pin 21, so as to prepare for the locking pin 21 to be inserted into the second angle gear hole 52, that is, when the third signal sensor 4 is triggered, the locking pin 21 is just aligned with the second angle gear hole 52, so that the locking pin 21 is accurately matched and locked with the second angle gear hole 52.

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

[0056] The electric rotation locking structure of the seat in this embodiment drives the rotating disk 5 relative to the base 1 through the drive of the power component 31, and controls the locking state of the rotation positioning locking component 2 through the release motor 23. The initial position and the required adjustment position of the rotating disk 5 are locked respectively by the cooperation of the locking pin 21 with the first angle gear hole 51 and the second angle gear hole 52 respectively. 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 fully in place during electric rotation, so that the rotating disk 5 is accurately locked in the required adjustment position, thereby improving the safety of the child safety seat. The structure is simple and reliable, the yield is high, the noise is low, and the seat rotates smoothly and orderly.

[0057] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may 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 invention.

Claims

1. A seat electric rotation locking structure, characterized in that: The invention comprises a base (1), a rotating disk (5), a rotating assembly (3), a rotational positioning locking assembly (2), a circuit board and a third signal sensor (4) triggered by the rotating disk (5); the rotating disk (5) is rotationally connected to the base (1); the rotating assembly (3), the rotational positioning locking assembly (2) and the third signal sensor (4) are all connected to the base (1); the rotational positioning locking assembly (2) comprises 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 angular gear hole (51) and a second angular gear hole (52); the first angular gear hole (51) and the second angular gear hole (52) are suitable for selecting one of the first angular gear hole (51) and the second angular gear hole (52) to be aligned with the first angular gear hole (51). The locking latch (21) cooperates with the first angular gear hole (51), and when the locking latch (21) cooperates and locks with the first angular gear hole (51), the rotating disk (5) is in the initial position, and when the locking latch (21) cooperates and locks with the second angular gear hole (52), the rotating disk (5) is in the required 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 transmission-connected to the rotating disk (5) to drive the rotating disk (5) to rotate relative to the base (1).

2. The electric rotation locking structure of the seat according to claim 1, characterized in that: The first angle shift hole (51) and the second angle shift hole (52) are spaced apart from each other, and a third angle shift hole is further provided on the rotating disk (5), and the third angle shift hole is located between the first angle shift hole (51) and the second angle shift hole (52).

3. The electric rotation locking structure of the seat according to claim 1, characterized in that: The power assembly (31) comprises a rotating motor (311) and a driving gear (312) connected to each other, and the rotating disk (5) is provided with a gear ring (53) meshing with the driving gear (312).

4. The electric rotation locking structure of a seat according to any one of claims 1 to 3, characterized in that: The rotation positioning locking assembly (2) comprises a mounting seat (25), the first signal sensor (24) and the second signal sensor (32) are both mounted in the mounting seat (25), and the locking pin (21) and the release switch (22) are both movably mounted in the mounting seat (25).

5. The electric rotation locking structure of the seat according to claim 4, characterized in that: The rotation positioning locking assembly (2) further comprises a reset member (26) mounted in the mounting seat (25), and two ends of the reset member (26) are respectively connected to the mounting seat (25) and the locking pin (21).

6. The electric rotation locking structure of the seat according to claim 5, characterized in that: The locking latch (21) is provided with a toggle block (211) adapted to abut against the unlocking switch (22); the unlocking switch (22) is rotated to abut against the toggle block (211), and can push the locking latch (21) to move so that the locking latch (21) is disengaged from the first angular shift hole (51); when the unlocking switch (22) and the toggle block (211) are disengaged from each other and the locking latch (21) is aligned with the second angular shift hole (52) of the rotating disk (5), the locking latch (21) is reset and popped out under the action of the reset member (26) to lock with the second angular shift hole (52).

7. The electric rotation locking structure of the 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 gear 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) to disengage the release switch (22) and the toggle block (211).

8. A seat electric rotation locking method based on the seat electric rotation locking structure according to any one of claims 1 to 7, characterized in that: Including steps: When the rotating disk (5) is in the initial position, the locking pin (21) cooperates with the first angle gear hole (51) of the rotating disk (5) to lock; 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, and when the locking pin (21) triggers the first signal sensor (24), the release motor (23) is controlled to stop working, at which time the locking pin (21) is disengaged from the first angle gear hole (51), and the power assembly (31) is controlled to start working to drive the rotating disk (5) to rotate; When 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, and the release switch (22) is disengaged from the locking latch (21), until the release switch (22) triggers the second signal sensor (32), and 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), controls the power assembly (31) to stop working, and the locking pin (21) is aligned with the second angle gear hole (52) of the rotating disk (5), and resets and pops out under the action of the reset member (26) to lock with the second angle gear hole (52), thereby achieving the adjustment of the rotating disk (5) to the desired adjustment position.

9. The electric rotation locking method of the seat according to claim 8, characterized in that: After the rotating disk (5) rotates for a period of time, controlling the unlocking motor (23) to start working to drive the unlocking switch (22) to rotate includes the following steps: determining whether a third angle shift hole is provided between the first angle shift hole (51) and the second angle shift hole (52) of the rotating disk (5) within the preset rotation angle range; if not, controlling the release motor (23) to start operation after the first angle shift hole (51) and the locking latch (21) are staggered; If there are any, the number of the third angular gear holes is detected, and the third signal sensor (4) is controlled to be powered off within the range of the rotation of the rotating disk (5) from the first angular gear hole (51) to the last third angular gear hole. After the last third angular gear hole is rotated, the third signal sensor (4) is controlled to be powered on, and the unlocking motor (23) is controlled to start working.

10. A child safety seat, characterized in that: It comprises the electric rotation locking structure of the seat as described in any one of claims 1-7.

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