Child safety seat with electric rotation function

Abstract

A child safety seat with an electric rotation function, the child safety seat comprising: a base (1), a rotary disc (2), an electric transmission assembly (3) and a mounting cavity (7), wherein the rotary disc is rotationally connected to the base; the rotary disc is provided with the mounting cavity, or the base is provided with the mounting cavity, or the mounting cavity is provided between the rotary disc and the base; and the electric transmission assembly is mounted in the mounting cavity, and is connected to the base, and the electric transmission assembly is in transmission connection with the rotary disc so as to achieve the electric rotation function. The mounting cavity is used, and the electric transmission assembly is arranged on an inner side of the mounting cavity, such that the seat structure can be rationally laid out, the appearance of the child safety seat is not required to be modified, and the structural space of the child safety seat can be rationally utilized, thereby maintaining the compactness of the overall structure; and the mounting cavity is located at a bottom end of the seat, such that an inclination angle of the seat is not required to be considered when the structure of the electric transmission assembly is designed, that is, regardless of how the seat is inclined, the normal operation of the electric transmission assembly is not affected, and thus improvement is of low difficulty, and is easy to realize.

Description

Child safety seat with electric rotation function Technical Field

[0001] The utility model relates to the technical field of automobile safety products, in particular to a child safety seat with an electric rotation function. Background Art

[0002] With the continuous advancement of consumer and industry technologies, parents are increasingly concerned about the safety and convenience of their children in child safety seats. Some seats have added electric rotation features to provide a more convenient user experience. However, electric rotation requires additional components, which require a certain amount of installation space. Existing technologies modify the child safety seat's exterior to create space for these components, which is a significant modification and high cost. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the present invention provides a child safety seat with an electric rotation function, including a base, a rotating disk, an electric transmission assembly and an installation cavity, wherein the rotating disk is rotatably connected to the base; the rotating disk is provided with the installation cavity, or the base is provided with the installation cavity, or the installation cavity is provided between the rotating disk and the base; the electric transmission assembly is installed in the installation cavity, the electric transmission assembly is connected to the base, and the electric transmission assembly is transmission-connected to the rotating disk to realize the electric rotation function.

[0004] Optionally, the electric transmission assembly includes a drive motor, a worm and a worm wheel, the drive motor is connected to the worm, the worm is connected to the worm wheel, and the inner wall of the rotating disk is provided with an internal gear ring connected to the worm wheel.

[0005] Optionally, the worm is arranged horizontally relative to the rotating disk.

[0006] Optionally, the electric transmission assembly further includes a motor fixing bracket, and the drive motor is connected to the base via the motor fixing bracket.

[0007] Optionally, the electric transmission assembly further includes a bearing and a bearing seat, the two ends of the worm are respectively connected to the drive motor and the bearing, and the bearing is connected to the base through the bearing seat.

[0008] Optionally, the rotating disk is provided with a through hole, and the mounting cavity is connected to the through hole.

[0009] Optionally, a slip ring for power supply and communication is installed on the base, and the slip ring includes a slip ring body and wires that are rotatably connected to each other, and the wires are suitable for electrical connection with the seat. The slip ring body is connected to the base, and the rotating disk is provided with a wire hole for the wires to pass through.

[0010] Optionally, the electric transmission assembly includes a drive motor and a circuit board electrically connected to the drive motor. The seat is provided with buttons or a touch screen, and the buttons or the touch screen are electrically connected to the circuit board.

[0011] Optionally, it also includes a circuit board and an electromagnetic lock electrically connected to the circuit board, the electromagnetic lock includes a lock shell and a gear pin movably connected to the lock shell, the lock shell is connected to the base, the rotating disk is provided with a plurality of gear locking holes arranged at intervals, and one of the plurality of gear locking holes is selected to cooperate with the gear pin.

[0012] Optionally, a position signal sensor is provided on the base, and the rotating disk is provided with a plurality of position signal detectors arranged at intervals, and one of the plurality of position signal detectors is selected to sense and cooperate with the position signal sensor, the position signal sensor and the drive motor are electrically connected to the circuit board, and the gear locking hole is arranged in a one-to-one correspondence with the position signal detector.

[0013] Compared with the prior art, the child safety seat with electric rotation function in the present invention utilizes the installation cavity and arranges the electric transmission component inside the installation cavity, which can more reasonably layout the seat structure and does not require changes to the appearance of the child safety seat. It can reasonably utilize the space of its own structure and maintain the compactness of the overall structure. The installation cavity is located at the bottom end of the seat, so that there is no need to consider the seat tilt angle when designing the structure of the electric transmission component, that is, no matter how the seat is tilted, it will not affect the normal operation of the electric transmission component. The improvement is easy to implement with little difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a partial structural diagram of a child safety seat according to an embodiment of the present invention;

[0015] FIG2 is a partial exploded view of a child safety seat according to an embodiment of the present invention;

[0016] FIG3 is a structural diagram of a rotating disk according to an embodiment of the present invention;

[0017] FIG4 is a cross-sectional view of a child safety seat according to an embodiment of the present invention.

[0018] Description of reference numerals:

[0019] 1. Base; 11. Position signal sensor; 2. Rotating disk; 22. Internal gear ring; 23. Through hole; 24. Wire hole; 25. Position signal transmitter; 26. Gear locking hole; 3. Electric transmission assembly; 31. Drive motor; 32. Worm; 33. Worm gear; 34. Motor fixing bracket; 35. Bearing; 36. Bearing seat; 4. Slip ring; 41. Slip ring body; 42. Wire; 5. Electromagnetic lock; 51. Lock housing; 52. Gear pin; 6. Seat bracket; 7. Mounting cavity. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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.

[0023] An embodiment of the present utility model provides a child safety seat with an electric rotation function, as shown in Figures 1, 2, 3 and 4, comprising a base 1, a rotating disk 2, an electric transmission assembly 3 and a mounting cavity 7, wherein the rotating disk 2 is rotationally connected to the base 1; the rotating disk 2 is provided with the mounting cavity 7, or the base 1 is provided with the mounting cavity 7, or the mounting cavity 7 is provided between the rotating disk 2 and the base 1; the electric transmission assembly 3 is installed in the mounting cavity 7, the electric transmission assembly 3 is connected to the base 1, and the electric transmission assembly 3 is transmission-connected to the rotating disk 2 to realize the electric rotation function.

[0024] Among them, the base 1 is provided with an axis for the rotating disk 2 to rotate, and the rotating disk 2 can rotate 360° in the forward or reverse direction around the axis; the rotating disk 2 is connected to the seat bracket 6, and the seat bracket 6 is used to fix the seat. When the electric transmission component 3 drives the rotating disk 2 to rotate, the electric rotation function of the seat can be realized; the electric transmission component 3 can be a gear transmission structure, or a transmission belt and pulley transmission structure, or a chain and sprocket transmission structure; due to the characteristics of its own structure, an installation cavity 7 is easily formed between the rotating disk 2 and the base 1. In addition, the base 1 itself is formed with the installation cavity 7, or the rotating disk 2 itself forms the installation cavity 7; the setting of the installation cavity 7 does not require changes to the appearance of the child safety seat.

[0025] The child safety seat with electric rotation function in this embodiment utilizes the installation cavity 7, and the electric transmission component 3 is arranged inside the installation cavity 7, which can more reasonably arrange the seat structure, and does not require the appearance of the child safety seat to be changed. The space of its own structure can be reasonably utilized and the compactness of the overall structure can be maintained; and the installation cavity 7 is located at the bottom end of the seat, so that there is no need to consider the seat tilt angle when designing the structure of the electric transmission component 3, that is, no matter how the seat is tilted, it will not affect the normal operation of the electric transmission component 3, and the improvement is easy to implement with little difficulty.

[0026] Optionally, in combination with Figures 2, 3 and 4, the electric transmission assembly 3 includes a drive motor 31, a worm 32 and a worm wheel 33, the drive motor 31 is connected to the worm 32, the worm 32 is transmission-connected to the worm wheel 33, and the inner wall of the rotating disk 2 is provided with an internal gear ring 22 transmission-connected to the worm wheel 33.

[0027] Among them, the worm 32 is connected and fixed to the motor shaft of the driving motor 31, and the inner gear ring on the rotating disk 2 is engaged with the worm wheel 33. The driving motor 31 drives the worm 32 to rotate synchronously, and the worm 32 drives the worm wheel 33 to rotate synchronously. The worm wheel 33 engages with the inner gear ring 22 to drive the rotating disk 2 to rotate synchronously, and finally realizes the electric rotation function of the seat; an axis for the worm wheel 33 to rotate is provided on the base 1; and the matching structure of the worm wheel 33 and the worm 32 has a self-locking function. When the driving motor 31 stops driving the worm 32 to rotate at any angle, the rotating disk 2 It will be locked at any angular position because the worm wheel 33 cannot reversely drive the worm 32. When the worm 32 is locked, the inner gear ring 22 of the rotating disk 2 is locked with the worm wheel 33, thereby realizing the automatic locking function. The driving motor 31, worm wheel 33 and worm 32 are all arranged on the inner side of the rotating disk 2, which not only can reasonably arrange the seat structure, but also because the diameter of the worm wheel 33 arranged on the inner side is definitely smaller than the diameter of the inner gear ring 22 of the rotating disk 2, the structure in which the small gear drives the large gear to rotate is also a good labor-saving mechanism.

[0028] Optionally, in combination with Figures 2 and 4, the worm 32 is horizontally arranged relative to the rotating disk 2, and the worm 32 is placed horizontally, that is, the axis of the worm 32 is arranged parallel to the rotating disk 2. This reduces the vertical space requirement of the installation cavity 7 of the rotating disk 2 and improves the space utilization of the rotating disk 2.

[0029] Optionally, in combination with Figures 2 and 4, the electric transmission assembly 3 also includes a motor fixing bracket 34, and the drive motor 31 is connected to the base 1 through the motor fixing bracket 34; the motor shaft of the drive motor 31 is preferably arranged horizontally relative to the rotating disk 2, and the drive motor 31 is connected and fixed to the base 1 through the motor fixing bracket 34, and the structure is simple and reliable.

[0030] Optionally, as shown in Figures 2 and 4 , the electric transmission assembly 3 further includes a bearing 35 and a bearing seat 36. The two ends of the worm 32 are respectively connected to the drive motor 31 and the bearing 35, and the bearing 35 is connected to the base 1 via the bearing seat 36. One end of the worm 32 is fixedly connected to the motor shaft of the drive motor 31, and the drive motor 31 can drive the worm 32 to rotate synchronously. The other end of the worm 32 is movably connected to the bearing 35, that is, the bearing 35 does not restrict the rotation of the worm 32, and the worm 32 does not directly drive the rotating disk 2. This can improve the transmission efficiency and stability of the worm 32.

[0031] Optionally, as shown in Figures 2, 3 and 4, the rotating disk 2 is provided with a through hole 23, and the mounting cavity 7 is connected to the through hole 23 to facilitate the installation of the electric transmission assembly 3; the through hole 23 can be designed as a fan-shaped hole.

[0032] Optionally, in combination with Figures 2 and 4, a slip ring 4 for power supply and communication is installed on the base 1, and the slip ring 4 includes a slip ring body 41 and an electric wire 42 that are rotatably connected to each other. The electric wire 42 is suitable for being electrically connected to the seat, and the slip ring body 41 is connected to the base 1. The rotating disk 2 is provided with a wire hole 24 for the electric wire 42 to pass through.

[0033] Among them, the wire 42 of the slip ring 4 can rotate 360° unlimitedly relative to the slip ring body 41. One end of the slip ring 4 is electrically connected to the power supply, which can be a self-contained power supply (such as a battery pack) or a vehicle-mounted power supply. The other end is electrically connected to the seat through the wire 42 to realize communication and power supply to the seat; the wire hole 24 is preferably arranged at the center position of the rotating disk 2 so that the wire 42 of the slip ring 4 can pass through and the wiring is short; this embodiment uses the slip ring 4 to realize power supply and communication of the seat, which will not affect the rotation of the rotating disk 2, can prevent the wire 42 from being hooked, and realize the free rotation of the seat, and the wire 42 can be rotated at any angle, so that the wire 42 can basically remain in its original state during the rotation of the rotating disk 2, ensuring that the power supply and communication are not interfered with, effectively improving the service life of the wire 42, and avoiding damage that affects the normal use of the seat.

[0034] Optionally, the seat further includes a circuit board electrically connected to the drive motor 31. The seat is provided with buttons or a touch screen, which are electrically connected to the circuit board. In addition to physical buttons or touch keys provided on the seat, voice control or app control is also possible. When the circuit board receives a corresponding signal, it controls the operation of the drive motor 31, thereby achieving control of the electric rotation function.

[0035] Optionally, in combination with what is shown in FIG2 , a circuit board is further included, a position signal sensor 11 is provided on the base 1, and the rotating disk 2 is provided with a plurality of position signalers 25 arranged at intervals, and one of the plurality of position signalers 25 is selectively sensed and coordinated with the position signal sensor 11, and the position signal sensor 11 and the drive motor 31 are both electrically connected to the circuit board.

[0036] Among them, when the seat rotation angle reaches the set required angle, the position signal sensor 11 on the base 1 and the corresponding position signaler 25 on the rotating disk 2 generate an induction signal, and the circuit board controls the drive motor 31 to stop working after receiving the corresponding signal; the position signal sensor 11 and the position signaler 25 are implemented using RFID technology, that is, the position signal sensor 11 is a reader / writer, and the position signaler 25 is an electronic tag, and each position signaler 25 is unique, so that the position signal sensor 11 can accurately detect the rotation angle position of the seat; in this embodiment, the number of position signalers 25 is preferably four, corresponding to the forward position of the seat, the right position of the seat, the backward position of the seat and the left position of the seat, respectively.

[0037] Optionally, in combination with what is shown in FIG2 , an electromagnetic lock 5 electrically connected to the circuit board is further included, the electromagnetic lock 5 including a lock housing 51 and a gear pin 52 movably connected to the lock housing 51, the lock housing 51 is connected to the base 1, the rotating disk 2 is provided with a plurality of gear locking holes 26 arranged at intervals, one of the plurality of gear locking holes 26 is selected to cooperate with the gear pin 52, and the gear locking holes 26 are arranged in a one-to-one correspondence with the position signaler 25.

[0038] Among them, the electromagnetic lock 5 plays the role of a second locking. When the electromagnetic lock 5 is set on the base 1, there will be more choices when selecting the materials of transmission parts such as the worm wheel 33 and the worm 32, which can reduce the rigidity requirements of the materials of transmission parts such as the worm wheel 33 and the worm 32; in this embodiment, four gear locking holes 26 are provided on the rotating disk 2, and the number of the four gear locking holes 26 is consistent with the position signal 25. The gear locking holes 26 correspond to the position signal 25 one by one. When rotation is required, the electromagnetic lock 5 is energized to generate magnetic force to retract the gear pin 52, and the drive motor 31 starts to drive the worm 32 and passes The worm gear 33 drives the rotating disk 2 to rotate. When the seat is rotated to the required rotation angle, the position signal sensor 11 on the base 1 and the corresponding position signal device 25 on the rotating disk 2 generate an induction signal, the drive motor 31 stops working, the magnetic force of the electromagnetic lock 5 disappears, and the gear pin 52 resets and locks to the corresponding gear locking hole 26 of the rotating disk 2 to further lock the position of the seat; when the seat is in a power-off state, the gear pin 52 of the electromagnetic lock 5 can well assist the worm gear 33 and the worm 32 to self-lock the rotating disk 2, thereby further improving the safety of the seat.

[0039] 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 utility model.

Claims

1. A child safety seat with electric rotation function, characterized in that: The invention comprises a base (1), a rotating disk (2), an electric transmission assembly (3) and a mounting cavity (7); the rotating disk (2) is rotationally connected to the base (1); the rotating disk (2) is provided with the mounting cavity (7), or the base (1) is provided with the mounting cavity (7), or the mounting cavity (7) is provided between the rotating disk (2) and the base (1); the electric transmission assembly (3) is installed in the mounting cavity (7), the electric transmission assembly (3) is connected to the base (1), and the electric transmission assembly (3) is transmission-connected to the rotating disk (2) to realize an electric rotation function.

2. The child safety seat with electric rotation function according to claim 1, characterized in that: The electric transmission assembly (3) comprises a driving motor (31), a worm (32) and a worm wheel (33); the driving motor (31) is connected to the worm (32); the worm (32) is drivingly connected to the worm wheel (33); and the inner wall of the rotating disk (2) is provided with an internal gear ring (22) drivingly connected to the worm wheel (33).

3. The child safety seat with electric rotation function according to claim 2, characterized in that: The worm (32) is arranged horizontally relative to the rotating disk (2).

4. The child safety seat with electric rotation function according to claim 2, characterized in that: The electric transmission assembly (3) further comprises a motor fixing bracket (34), and the drive motor (31) is connected to the base (1) via the motor fixing bracket (34).

5. The child safety seat with electric rotation function according to claim 2, characterized in that: The electric transmission assembly (3) further comprises a bearing (35) and a bearing seat (36); two ends of the worm (32) are respectively connected to the drive motor (31) and the bearing (35); and the bearing (35) is connected to the base (1) via the bearing seat (36).

6. The child safety seat with electric rotation function according to claim 1, characterized in that: The rotating disk (2) is provided with a through hole (23), and the mounting cavity (7) is in communication with the through hole (23).

7. The child safety seat with electric rotation function according to claim 1, characterized in that: A slip ring (4) for power supply and communication is installed on the base (1), the slip ring (4) comprising a slip ring body (41) and an electric wire (42) which are rotatably connected to each other, the electric wire (42) being suitable for being electrically connected to a seat, the slip ring body (41) being connected to the base (1), and the rotating disk (2) being provided with a wire hole (24) for the electric wire (42) to pass through.

8. The child safety seat with electric rotation function according to claim 7, characterized in that: The electric transmission assembly (3) comprises a drive motor (31) and a circuit board electrically connected to the drive motor (31); the seat is provided with a button or a touch screen, and the button or the touch screen is electrically connected to the circuit board.

9. The child safety seat with electric rotation function according to any one of claims 1 to 8, characterized in that: The invention also comprises a circuit board and an electromagnetic lock (5) electrically connected to the circuit board, wherein the electromagnetic lock (5) comprises a lock shell (51) and a gear pin (52) movably connected to the lock shell (51), the lock shell (51) being connected to the base (1), the rotating disk (2) being provided with a plurality of gear locking holes (26) arranged at intervals, and one of the plurality of gear locking holes (26) being selected to cooperate with the gear pin (52).

10. The child safety seat with electric rotation function according to claim 9, characterized in that: The base (1) is provided with a position signal sensor (11), the rotating disk (2) is provided with a plurality of position signal devices (25) arranged at intervals, one of the plurality of position signal devices (25) is selectively matched with the position signal sensor (11) for induction, the position signal sensor (11) and the drive motor (31) are both electrically connected to the circuit board, and the gear locking holes (26) are arranged in a one-to-one correspondence with the position signal devices (25).

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