Driving mechanism of electric bed, electric bed and packaging structure

Abstract

The utility model relates to a kind of drive mechanism of electric bed, electric bed and packaging structure of electric bed, including linear motor, motor support, movable bed plate, bedstead, motor support is rotatably connected bedstead, linear motor both ends are rotatably connected motor support, bedstead, movable bed plate is opened with the embedding hole of directly facing motor support, and support plate of fixedly connected movable bed plate is equipped in embedding hole, the motor support is driven by linear motor and is upwardly movable and abuts support plate, to regulate the elevation angle of movable bed plate.This scheme carries out embedded design to bed plate, for under the limited bed body thickness, provide greater driving force arm for driving movable bed plate to overturn, compared with previous scheme, can be more labor-saving when driving movable bed plate to overturn under the same bed body thickness, lower to material requirement;Or under the technical condition satisfying driving torque requirement, bed body thickness can be set to be thinner.

Claims

1. A drive mechanism for an electric bed, comprising a linear motor (5), a motor bracket (6), a movable bed board, and a bed frame, wherein the motor bracket (6) is rotatably connected to the bed frame, and both ends of the linear motor (5) are rotatably connected to the motor bracket (6) and the bed frame, respectively, characterized in that, The movable bed board has an insertion hole (9) facing the motor bracket (6), and a support plate (8) is fixedly connected to the movable bed board in the insertion hole (9). Driven by the linear motor (5), the motor bracket (6) moves upward and touches the support plate (8) to adjust the elevation angle of the movable bed board.

2. A drive mechanism for an electric bed according to claim 1, wherein The motor bracket (6) is equipped with quick-installation structures on both the left and right sides. The motor bracket (6) can be detachably rotated to connect to the corresponding positioning holes of the bed frame through the quick-installation structures.

3. A drive mechanism for an electric bed as claimed in claim 1, wherein, The support plate (8) has a flat plate portion parallel to the movable bed board and located in the embedding hole (9). The upper surface of the flat plate portion of the support plate (8) is close to the upper surface of the movable bed board. The motor bracket (6) movably supports the flat plate portion of the support plate (8).

4. A drive mechanism for an electric bed according to claim 3, wherein It is equipped with a linear motor (5), and the motor bracket (6) includes a linkage shaft (62) extending along the width of the bed and a pair of push rods (61) fixed on the linkage shaft (62). The pair of push rods (61) are distributed on the left and right and support two support plates (8) respectively. The support plates (8) and the embedding holes (9) are provided in two respectively. The linear motor (5) is rotatably connected to the linkage shaft (62) to drive the linkage shaft (62) and the pair of push rods (61) to rotate synchronously.

5. A drive mechanism for an electric bed according to claim 4, wherein, One of the support plates (8) has a relief hole (8a) on its flat plate portion. The relief hole (8a) is directly opposite to the rotating connection part of the linear motor (5) and the motor bracket (6) and accommodates the rotating connection part of the linear motor (5) and the motor bracket (6) to move within it.

6. A drive mechanism for an electric bed according to claim 3, wherein, The upper surface of the flat plate of the support plate (8) is higher than the upper surface of the movable bed board and is close to the upper surface of the movable bed board.

7. A drive mechanism for an electric bed according to any one of claims 1 to 6, wherein The linear motor (5) and motor bracket (6) never extend downward beyond the bottom surface of the bed frame.

8. An electric bed, characterized in that It is equipped with two sets of drive mechanisms as described in claim 2, distributed front and rear. The bed frame is designed as a split-combination structure and is composed of several unit parts that can be disassembled and combined.

9. An electric bed according to claim 8, wherein, The quick-installation structure includes: Pin (20), which is fixedly connected to motor bracket (6); Iron bushing (22), which is used to fix the bed frame; A plastic bushing (21) is fixedly inserted into the inner hole of an iron bushing (22) and is located between a pin (20) and an iron bushing (22). The pin (20) is detachably inserted into the plastic bushing (21), and the plastic bushing (21) serves as a rotational support for the pin (20).

10. A packaging structure for an electric bed according to claim 8, characterized in that It includes at least: A motor bracket packaging assembly formed by stacking several motor brackets (6); A bed frame assembly formed by reassembling several bed frame unit parts.

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