Fan opening and closing structure and child safety seat

Abstract

The utility model relates to the field of automobile safety supplies, and discloses a fan opening and closing structure and a child safety seat, the fan opening and closing structure comprises a fan and an opening and closing assembly, the opening and closing assembly comprises an inner plate and a rotating cover which are mutually and rotatably connected, the inner plate is connected with the fan, the inner plate is provided with a first ventilation opening, and the rotating cover is provided with a second ventilation opening; when the first ventilation opening and the second ventilation opening are correspondingly arranged, the opening and closing assembly is in an open state, and at the moment, the fan is suitable for being communicated with the channel. When the first ventilation opening and the second ventilation opening are arranged in a staggered mode, the opening and closing assembly is in a closed state, and at the moment, the fan is isolated from the channel. By arranging the inner plate and the rotating cover which are rotationally connected with each other, the channel is closed and heat is prevented from escaping when the fan stops working, so that the temperature adjusting effect of the child safety seat is improved, and the child safety seat is simple and feasible in structure, low in manufacturing cost and convenient to popularize and apply.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile safety products, in particular to a fan opening and closing structure and a child safety seat. Background Art

[0002] Some child safety seats on the market have a temperature control function. These seats are usually equipped with a channel and fan system for transferring heat so that the heat is evenly distributed throughout the seat. However, since the fan and the channel are kept unobstructed, when the fan stops working, the heat in the channel may escape through the fan position, causing the seat to be unable to effectively maintain the temperature control function. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the utility model first provides a fan opening and closing structure, including a fan and an opening and closing assembly, the opening and closing assembly including an inner plate and a rotating cover which are rotatably connected to each other, the inner plate is connected to the fan, the inner plate is provided with a first vent, and the rotating cover is provided with a second vent; when the first vent and the second vent are arranged correspondingly, the opening and closing assembly is in an open state, and at this time the fan is suitable for being connected to the channel; when the first vent and the second vent are staggered, the opening and closing assembly is in a closed state, and at this time the fan is isolated from the channel.

[0004] Optionally, the first vent and the second vent are consistent in shape and size, and when the first vent and the second vent are completely overlapped, the ventilation volume between the fan and the channel is maximum.

[0005] Optionally, the first vent and the second vent are both semicircular or petal-shaped.

[0006] Optionally, it also includes a plurality of screws, the fan is provided with a plurality of screw holes, the inner plate is provided with a plurality of first mounting holes, the first mounting holes are arranged in one-to-one correspondence with the screw holes, and the screws pass through the first mounting holes and are screwed to the screw holes to fix the relative positions of the inner plate and the fan.

[0007] Optionally, rivets are also included, a second mounting hole is provided at the center of the inner plate, a third mounting hole is provided at the center of the rotating cover, and the rivets are sequentially passed through the second mounting hole and the third mounting hole, so that the rotating cover and the inner plate are rotationally connected through the rivets.

[0008] Optionally, it also includes a circuit board and a motor, the motor and the fan are electrically connected to the circuit board, the motor is connected to a gear, the outer edge of the rotating cover is provided with a gear ring, and the gear is meshed with the gear ring.

[0009] Optionally, a support portion for mounting the motor is provided on an edge of the fan.

[0010] Optionally, the support portion is provided with a groove opening toward the rotating cover, a portion of the motor is installed in the groove, and the gear is located outside the groove.

[0011] Optionally, the diameter of the gear is smaller than the diameter of the ring gear.

[0012] Compared with the prior art, the fan opening and closing structure in the utility model realizes closing the channel when the fan stops working and prevents heat from escaping by setting an inner plate and a rotating cover that are rotatably connected to each other, thereby improving the temperature regulation effect of the child safety seat. The structure is simple and easy to operate, with low manufacturing cost, and is easy to promote and apply.

[0013] In addition, the utility model provides a child safety seat, comprising the fan opening and closing structure as described above.

[0014] Compared with the prior art, the child safety seat described in the present invention and the above-mentioned fan opening and closing structure have the same advantages over the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the fan opening and closing structure of an embodiment of the utility model;

[0016] Figure 2 An exploded view of the fan opening and closing structure of an embodiment of the utility model;

[0017] Figure 3 This is a structural diagram of the fan opening and closing structure of the embodiment of the utility model in the open state;

[0018] Figure 4 This is a structural diagram of the fan opening and closing structure of the embodiment of the utility model in the closed state;

[0019] Figure 5 This is a structural diagram of a fan opening and closing structure in another embodiment of the utility model when in an open state;

[0020] Figure 6 This is a structural diagram of a fan opening and closing structure in another embodiment of the utility model in a closed state;

[0021] Figure 7 A schematic diagram of the connection between the fan opening and closing structure and the circuit board of an embodiment of the utility model;

[0022] Figure 8 This is a structural diagram of a fan opening and closing structure of an embodiment of the utility model installed on a chair back.

[0023] Description of reference numerals:

[0024] 1. Fan; 11. Screw hole; 12. Support part; 13. Groove; 2. Opening and closing assembly; 21. Inner plate; 211. First vent; 212. First mounting hole; 213. Second mounting hole; 22. Rotating cover; 221. Second vent; 222. Third mounting hole; 223. Gear ring; 23. Rivet; 3. Motor; 4. Gear; 5. Circuit board. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] 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 that are based on the positions or location relationships when the product is in normal use.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0028] The utility model provides a fan opening and closing structure, combined with Figures 1 to 6 As shown, it includes a fan 1 and an opening and closing component 2, the opening and closing component 2 includes an inner plate 21 and a rotating cover 22 which are rotatably connected to each other, the inner plate 21 is connected to the fan 1, the inner plate 21 is provided with a first vent 211, and the rotating cover 22 is provided with a second vent 221; when the first vent 211 and the second vent 221 are arranged correspondingly, the opening and closing component 2 is in an open state, at which time the fan 1 is suitable for being connected to the channel; when the first vent 211 and the second vent 221 are staggered, the opening and closing component 2 is in a closed state, at which time the fan 1 is isolated from the channel.

[0029] Among them, the fan 1 usually adopts a conventional small fan 1, one end face is fixed on the back of the chair, and the other end face is connected and fixed to the inner plate 21; the first vent 211 on the inner plate 21 is used for air circulation, the rotating cover 22 is connected to the inner plate 21 through a rotating shaft, and is provided with a second vent 221. The rotation of the rotating cover 22 can make the second vent 221 correspond to or stagger with the first vent 211, so as to control the opening and closing state of air circulation. When ventilation and heat transfer are required, the fan 1 is started, and the rotating cover 22 is rotated to the position corresponding to the first vent 211 and the second vent 221, that is, the fan 1 is connected with the channel, so that the fan 1 can transfer the heat of the air in the channel to the body of the child sitting on the child safety seat; when heat transfer is not required, the fan 1 is turned off, and the rotating cover 22 is rotated to the position staggered between the first vent 211 and the second vent 221, that is, the channel is isolated from the fan 1, air circulation is blocked, and the heat of the air in the channel is prevented from escaping.

[0030] The fan opening and closing structure in this embodiment, by providing the inner plate 21 and the rotating cover 22 which are rotatably connected to each other, closes the channel when the fan 1 stops working to prevent heat from escaping, thereby improving the temperature regulation effect of the child safety seat. The structure is simple and easy to operate, with low manufacturing cost, and is easy to promote and apply.

[0031] Optionally, combined Figures 3 to 6 As shown, the first vent 211 and the second vent 221 are consistent in shape and size. When the first vent 211 and the second vent 221 are completely overlapped, the ventilation volume between the fan 1 and the channel is maximum.

[0032] Among them, the first vent 211 and the second vent 221 are consistent in shape and size, ensuring seamless connection when overlapping, thereby maximizing the air circulation efficiency; when the rotating cover 22 rotates to the position where the first vent 211 and the second vent 221 completely overlap, the areas of the two vents are completely consistent and overlap. This design ensures that the ventilation volume between the fan 1 and the channel reaches the maximum value. In the case of complete overlap, air can pass through the fan 1 and the channel unimpeded, achieving optimal heat transfer and temperature regulation effects, ensuring that the fan 1 can operate at the highest efficiency when working, and improving the air circulation effect and heat transfer efficiency inside the seat.

[0033] Optionally, combined Figures 3 to 6 As shown, the first vent 211 and the second vent 221 are both in a semicircular or petal shape.

[0034] Among them, Figure 3 and Figure 4As shown, when the vent is semicircular, rotating the rotating cover 221 by 180° or a multiple of 180° can make the first vent 211 and the second vent 221 rotate from a completely overlapping position to a completely staggered position, that is, the opening and closing component 2 is switched from an open state to a closed state; Figure 5 and Figure 6 As shown, in the case where the vent is in the shape of a petal, the number of petals is preferably six, and by rotating the rotating cover 2260° or multiples of 60°, the first vent 211 and the second vent 221 can be rotated from a completely overlapping position to a completely staggered position, so that the opening and closing component 2 is switched from an open state to a closed state.

[0035] In this embodiment, precise opening and closing control can be achieved by designing the vents to be semicircular or petal-shaped. When the shapes of the vents are completely overlapped, whether semicircular or petal-shaped, the area of ​​the vents can be maximized, ensuring that the air circulation in the channel reaches the highest efficiency.

[0036] Optionally, combined Figures 1 to 7 As shown, it also includes a circuit board 5 and a motor 3. The motor 3 and the fan 1 are both electrically connected to the circuit board 5. The motor 3 is connected to a gear 4. A gear ring 223 is provided on the outer edge of the rotating cover 22. The gear 4 is meshed with the gear ring 223.

[0037] Among them, the gear 4 is connected to the output shaft of the motor 3, and drives the ring gear 223 by rotating; the ring gear 223 is set at the outer edge of the rotating cover 22 and meshes with the gear 4. When the motor 3 drives the gear 4 to rotate, the meshing of the gear 4 and the ring gear 223 causes the rotating cover 22 to rotate; the operation of the motor 3 is controlled by the circuit board 5, so that the automatic rotation of the rotating cover 22 is realized, and the channel is automatically closed when the fan 1 stops working, thereby preventing heat from escaping through the position of the fan 1 without manual operation, which greatly improves the convenience and intelligence level of use; the motor 3 drives the gear 4 to mesh with the ring gear 223, which can realize the precise positioning of the rotating cover 22, ensure that the opening and closing control of the vent is more accurate, and further improve the temperature regulation effect.

[0038] Optionally, combined Figure 1 , Figure 2 As shown, the edge of the fan 1 is provided with a support portion 12 for mounting the motor 3. The support portion 12 provides a stable mounting position for the motor 3, reduces the vibration and displacement of the motor 3 during operation, ensures the smooth rotation of the rotating cover 22, and improves the stability and reliability of the system.

[0039] Optionally, combined Figure 1 , Figure 2As shown, the support portion 12 is provided with a groove 13 opening toward the rotating cover 22, part of the motor 3 is installed in the groove 13, and the gear 4 is located outside the groove 13. The opening of the groove 13 faces the rotating cover 22, which is convenient for the transmission connection between the motor 3 and the rotating cover 22. Part of the motor 3 is installed in the groove 13, and the groove 13 provides a stable fixed position and protection for the motor 3. The gear 4 is located outside the groove 13 and directly meshes with the gear ring 223 on the rotating cover 22, ensuring smooth and efficient transmission, and the overall structure is more compact and reliable.

[0040] Optionally, combined Figure 1 , Figure 2 As shown, it also includes a plurality of screws. The fan 1 is provided with a plurality of screw holes 11, and the inner plate 21 is provided with a plurality of first mounting holes 212. The first mounting holes 212 are arranged one-to-one with the screw holes 11. After the screw passes through the first mounting holes 212, it is screwed with the screw holes 11 to fix the relative position of the inner plate 21 and the fan 1. This embodiment preferably has four screws, and the fan 1 is also provided with four screw holes 11 correspondingly. The four screw holes 11 are distributed at the four corners of the fan 1. The inner plate 21 and the fan 1 are firmly fixed together by four screws to ensure that they do not move or loosen during operation, thereby enhancing the stability and reliability of the entire device; the screw fixing method is simple and easy to operate, reduces assembly time and complexity, improves production efficiency, and reduces manufacturing costs.

[0041] Optionally, combined Figure 1 , Figure 2 As shown, the rivet 23 is also included. A second mounting hole 213 is provided at the center of the inner plate 21, and a third mounting hole 222 is provided at the center of the rotating cover 22. The rivet 23 is sequentially penetrated through the second mounting hole 213 and the third mounting hole 222, so that the rotating cover 22 and the inner plate 21 are rotatably connected through the rivet 23. The rivet 23 connects the inner plate 21 and the rotating cover 22 together through the second mounting hole 213 and the third mounting hole 222 at the center to form a stable rotating shaft, so that the rotating cover 22 can rotate smoothly relative to the inner plate 21, ensuring the reliability of the opening and closing process; the rivet 23 has a simple connection method, reduces complex mechanical parts and installation steps, makes the overall structure more concise, and reduces the manufacturing and assembly costs.

[0042] Optionally, combined Figures 1 to 6 As shown, the diameter of the gear 4 is smaller than the diameter of the gear ring 223 .

[0043] Among them, since the diameter of the gear 4 is smaller than the diameter of the ring gear 223, when the small gear 4 drives the large ring gear 223, a larger torque can be generated, ensuring that the rotating cover 22 can rotate smoothly and improving the transmission efficiency; the small gear 4 drives the large ring gear 223 so that each rotation of the gear 4 can drive the ring gear 223 to achieve fine angle adjustment, which helps to achieve precise positioning of the rotating cover 22 and ensure the accurate opening and closing state of the vent; the size ratio of the gear 4 and the ring gear 223 makes the transmission structure compact and occupies a small space, which is suitable for achieving efficient transmission in a limited space and optimizes the product design.

[0044] Another embodiment of the present invention provides a child safety seat, such as Figure 8 As shown, it includes a seat back and the fan opening and closing structure as described above, and the fan opening and closing structure is installed on the seat back.

[0045] The child safety seat in this embodiment is provided with an inner plate 21 and a rotating cover 22 that are rotatably connected to each other, so that the channel is closed when the fan 1 stops working to prevent heat from escaping, thereby improving the temperature regulation effect of the child safety seat. The structure is simple and easy to operate, with low manufacturing cost, and is easy to promote and apply.

[0046] Although the disclosure is as above, the protection scope of the 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 disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A fan opening and closing structure, characterized in that: The invention comprises a fan (1) and an opening and closing component (2), wherein the opening and closing component (2) comprises an inner plate (21) and a rotating cover (22) which are rotatably connected to each other, the inner plate (21) being connected to the fan (1), the inner plate (21) being provided with a first vent (211), and the rotating cover (22) being provided with a second vent (221); when the first vent (211) and the second vent (221) are arranged correspondingly, the opening and closing component (2) is in an open state, at which time the fan (1) is suitable for being connected to a channel; when the first vent (211) and the second vent (221) are arranged staggered, the opening and closing component (2) is in a closed state, at which time the fan (1) is isolated from the channel.

2. The fan opening and closing structure according to claim 1, characterized in that: The first ventilation opening (211) and the second ventilation opening (221) are consistent in shape and size; when the first ventilation opening (211) and the second ventilation opening (221) are arranged to completely overlap, the ventilation volume between the fan (1) and the channel is maximum.

3. The fan opening and closing structure according to claim 2, characterized in that: The first ventilation opening (211) and the second ventilation opening (221) are both semicircular or petal-shaped.

4. The fan opening and closing structure according to claim 1, characterized in that: The fan (1) is provided with a plurality of screw holes (11), and the inner plate (21) is provided with a plurality of first mounting holes (212). The first mounting holes (212) and the screw holes (11) are arranged in a one-to-one correspondence. The screws pass through the first mounting holes (212) and are screwed to the screw holes (11) to fix the relative positions of the inner plate (21) and the fan (1).

5. The fan opening and closing structure according to claim 1, characterized in that: The invention also comprises a rivet (23), a second mounting hole (213) is provided at the center of the inner plate (21), a third mounting hole (222) is provided at the center of the rotating cover (22), and the rivet (23) is sequentially passed through the second mounting hole (213) and the third mounting hole (222), so that the rotating cover (22) and the inner plate (21) are rotatably connected via the rivet (23).

6. The fan opening and closing structure according to any one of claims 1 to 5, characterized in that: It also includes a circuit board (5) and a motor (3), wherein the motor (3) and the fan (1) are both electrically connected to the circuit board (5), the motor (3) is connected to a gear (4), the outer edge of the rotating cover (22) is provided with a gear ring (223), and the gear (4) is meshed with the gear ring (223).

7. The fan opening and closing structure according to claim 6, characterized in that: The edge of the fan (1) is provided with a support portion (12) for mounting the motor (3).

8. The fan opening and closing structure according to claim 7, characterized in that: The support portion (12) is provided with a groove (13) opening toward the rotating cover (22), a portion of the motor (3) is installed in the groove (13), and the gear (4) is located outside the groove (13).

9. The fan opening and closing structure according to claim 6, characterized in that: The diameter of the gear (4) is smaller than the diameter of the gear ring (223).

10. A child safety seat, characterized in that: It comprises a fan opening and closing structure as described in any one of claims 1 to 9.

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