Back lifting device

Abstract

The utility model discloses a back lifting device which comprises a fixed lower frame, a rotating upper frame rotationally connected with the fixed lower frame and a lifting mechanism connected between the fixed lower frame and the rotating upper frame. The fixed lower frame is provided with a first front rod, a first middle rod and a first rear rod, and a slide way is fixedly connected between the first middle rod and the first rear rod; the rotating upper frame is provided with a second front rod, a second middle rod and a second rear rod; the lifting mechanism comprises a lifting motor, the tail end of the lifting motor is rotationally connected with a pulley connecting plate, the bottom end of the pulley connecting plate is connected with a pulley, the top end of the pulley connecting plate is rotationally connected with the first support, the lifting motor is provided with a motor arm, and the end of the motor arm is rotationally connected with the second support. According to the back lifting device, the rotating upper frame can be automatically lifted upwards, so that the back lifting device not only has stable supporting and rotating capacity, but also provides a convenient adjusting function through the lifting mechanism, the function of lifting the back of a user is realized, and the comfort and the safety in use are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of smart home, in particular to a back lifter. Background Art

[0002] As an emerging home product, smart electric beds are gradually gaining market attention and popularity among consumers. As the concept of smart home becomes more popular, smart electric beds, with their convenience and comfort, meet people's pursuit of high-quality sleep and home leisure experience. However, smart electric beds also face some challenges and problems in the process of popularization. Many families hope to use the functions of smart electric beds without replacing their existing beds, but not all families can directly use smart electric beds in existing home decoration scenarios, which limits the choices of some consumers. The connection between the bottom bracket and the back bracket of the existing back lifter is raised and lowered by a connecting shaft, with a low level of automation, high resistance and noise during the lifting process, high wear due to repeated lifting, and a short service life.

[0003] Based on the above situation, the utility model proposes a back lifter, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a back lifter. The utility model provides a back lifter that can automatically lift the rotating upper frame upward through a lifting mechanism, so that the back lifter not only has stable support and rotation capabilities, but also provides a convenient adjustment function through the lifting mechanism, realizes the user's back lifting function, and enhances the comfort and safety of use. At the same time, the overall appearance is more compact and can be used in any area where it can be achieved. Compared with traditional electric beds, it is cheaper and more cost-effective.

[0005] The utility model is realized by the following technical solutions:

[0006] A back lifter comprises a fixed lower frame, a rotating upper frame rotatably connected to the fixed lower frame, and a lifting mechanism connected between the fixed lower frame and the rotating upper frame; wherein:

[0007] The fixed lower frame is provided with a first front rod, a first middle rod and a first rear rod, and a slideway is fixedly connected between the first middle rod and the first rear rod;

[0008] The rotating upper frame is provided with a second front rod, a second middle rod and a second rear rod, and a connecting rod is fixedly connected between the second middle rod and the second rear rod;

[0009] The lifting mechanism includes a lifting motor, the tail end of the lifting motor is rotatably connected to the pulley connecting plate, the bottom end of the pulley connecting plate is connected to a pulley, the top end of the pulley connecting plate is rotatably connected to the first bracket, and the first bracket is fixedly connected to the second rear rod; the lifting motor is provided with a motor arm, the end of the motor arm is rotatably connected to the second bracket, and the second bracket is fixedly connected to the first middle rod.

[0010] According to the above technical solution, as a further preferred technical solution of the above technical solution, the rotating upper frame is provided with a plurality of reinforcing rods evenly spaced along the width direction of the rotating upper frame; the reinforcing rods are respectively fixedly connected to the second front rod, the second middle rod and the second rear rod.

[0011] According to the above technical solution, as a further preferred technical solution of the above technical solution, the two ends of the front side of the fixed lower frame are rotatably connected to the rotating upper frame through rotating brackets respectively.

[0012] According to the above technical solution, as a further preferred technical solution of the above technical solution, the tail end of the lifting motor is rotatably connected to the pulley connecting plate through a first rotating rod.

[0013] According to the above technical solution, as a further preferred technical solution of the above technical solution, the top end of the pulley connecting plate is rotatably connected to the first bracket through a second rotating rod.

[0014] According to the above technical solution, as a further preferred technical solution of the above technical solution, the end of the motor arm is rotatably connected to the second bracket through a third rotating rod.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] The utility model provides a back lifter, which can automatically lift the rotating upper frame upward through a lifting mechanism, so that the back lifter not only has stable support and rotation capabilities, but also provides a convenient adjustment function through the lifting mechanism, realizes the user's back lifting function, and enhances the comfort and safety of use. At the same time, the overall appearance is more compact and can be used in any area where it can be realized. Compared with traditional electric beds, it is cheaper and more cost-effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the slideway and the pulley of the utility model when they slide together;

[0018] Figure 2 It is a structural schematic diagram of the utility model when the rotating upper frame is lifted. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0020] A back lifter comprises a fixed lower frame 1, a rotating upper frame 2 rotatably connected to the fixed lower frame 1, and a lifting mechanism 3 connected between the fixed lower frame 1 and the rotating upper frame 2; wherein:

[0021] The fixed lower frame 1 is provided with a first front rod 11, a first middle rod 12 and a first rear rod 13, and a slideway 14 is fixedly connected between the first middle rod 12 and the first rear rod 13;

[0022] The rotating upper frame 2 is provided with a second front rod 21, a second middle rod 22 and a second rear rod 23, and a connecting rod 24 is fixedly connected between the second middle rod 22 and the second rear rod 23;

[0023] The lifting mechanism 3 includes a lifting motor 31, the tail end of the lifting motor 31 is rotatably connected to the pulley connecting plate 32, the bottom end of the pulley connecting plate 32 is connected to a pulley 33, the top end of the pulley connecting plate 32 is rotatably connected to the first bracket 34, and the first bracket 34 is fixedly connected to the second rear rod 23; the lifting motor 31 is provided with a motor arm 35, the end of the motor arm 35 is rotatably connected to the second bracket 36, and the second bracket 36 is fixedly connected to the first middle rod 12.

[0024] The utility model can automatically lift the rotating upper frame 2 upwards through the lifting mechanism 3, so that the back lifter not only has stable support and rotation capabilities, but also provides a convenient adjustment function through the lifting mechanism 3, realizes the user's back lifting function, and enhances the comfort and safety of use. At the same time, the overall appearance is more compact and can be used in any area where it can be realized. Compared with traditional electric beds, it is cheaper and more cost-effective.

[0025] Furthermore, in another embodiment, the rotating upper frame 2 is provided with a plurality of reinforcing rods 25 distributed at equal intervals along the width direction of the rotating upper frame 2; the reinforcing rods 25 are fixedly connected to the second front rod 21, the second middle rod 22 and the second rear rod 23 respectively.

[0026] By providing a plurality of reinforcing rods 25 , the back support for the user is increased, and the structural stability and load-bearing capacity of the rotating upper frame 2 are also improved.

[0027] Furthermore, in another embodiment, two ends of the front side of the fixed lower frame 1 are rotatably connected to the rotating upper frame 2 through rotating brackets 4 respectively.

[0028] The two ends of the front side of the fixed lower frame 1 are rotatably connected to the rotating upper frame 2 through a rotating bracket 4, so that the rotating upper frame 2 can rotate relative to the fixed lower frame 1, providing a rotating function for the back lifter, so that the user can adjust the inclination angle of the back as needed.

[0029] Furthermore, in another embodiment, the tail end of the lifting motor 31 is rotatably connected to the pulley connecting plate 32 via a first rotating rod 37 .

[0030] The tail end of the lifting motor 31 is rotatably connected to the pulley connecting plate 32 through the first rotating rod 37, so that the power of the lifting motor 31 is transmitted to the pulley connecting plate 32, thereby driving the rotation of the pulley 33 to realize the lifting action of the back lifter.

[0031] Furthermore, in another embodiment, the top end of the pulley connecting plate 32 is rotatably connected to the first bracket 34 via a second rotating rod 38 .

[0032] The top end of the pulley connecting plate 32 is rotatably connected to the first bracket 34 via the second rotating rod 38 , so that the pulley connecting plate 32 can be flexibly connected to the first bracket 34 , thereby enhancing the stability and reliability of the lifting mechanism 3 .

[0033] Furthermore, in another embodiment, the end of the motor arm 35 is rotatably connected to the second bracket 36 via a third rotating rod 39 .

[0034] The end of the motor arm 35 is rotatably connected to the second bracket 36 via the third rotating rod 39, ensuring that the power of the motor arm 35 can be effectively transmitted to the second bracket 36, thereby realizing the lifting function of the back lifter.

[0035] The working principle of one embodiment of the utility model is as follows:

[0036] During operation, the motor arm 35 of the lifting motor 31 is pushed outward, and the pulley 33 slides along the slide 14, so that the rotating upper frame 2 is slowly lifted. When a certain angle is reached, the pulley 33 disengages from the slide 14, and the rotating upper frame 2 continues to lift until the maximum angle is reached, thereby realizing the user's back lifting function.

[0037] According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use a back lifter of the utility model, and can produce the positive effects recorded in the utility model.

[0038] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0039] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A back lifter, characterized in that: It comprises a fixed lower frame (1), a rotating upper frame (2) rotatably connected to the fixed lower frame (1), and a lifting mechanism (3) connected between the fixed lower frame (1) and the rotating upper frame (2); wherein: The fixed lower frame (1) is provided with a first front rod (11), a first middle rod (12) and a first rear rod (13); a slideway (14) is fixedly connected between the first middle rod (12) and the first rear rod (13); The rotating upper frame (2) is provided with a second front rod (21), a second middle rod (22) and a second rear rod (23); a connecting rod (24) is fixedly connected between the second middle rod (22) and the second rear rod (23); The lifting mechanism (3) comprises a lifting motor (31), the tail end of the lifting motor (31) is rotatably connected to a pulley connecting plate (32), the bottom end of the pulley connecting plate (32) is connected to a pulley (33), the top end of the pulley connecting plate (32) is rotatably connected to a first bracket (34), and the first bracket (34) is fixedly connected to the second rear rod (23); the lifting motor (31) is provided with a motor arm (35), the end of the motor arm (35) is rotatably connected to the second bracket (36), and the second bracket (36) is fixedly connected to the first middle rod (12).

2. A back lifter according to claim 1, characterized in that: The rotating upper frame (2) is provided with a plurality of reinforcing rods (25) distributed at equal intervals along the width direction of the rotating upper frame (2); the reinforcing rods (25) are respectively fixedly connected to the second front rod (21), the second middle rod (22) and the second rear rod (23).

3. The back lifter according to claim 1, characterized in that: The two ends of the front side of the fixed lower frame (1) are rotatably connected to the rotating upper frame (2) via rotating brackets (4) respectively.

4. The back lifter according to claim 1, characterized in that: The tail end of the lifting motor (31) is rotationally connected to the pulley connecting plate (32) via a first rotating rod (37).

5. The back lifter according to claim 1, characterized in that: The top end of the pulley connecting plate (32) is rotatably connected to the first bracket (34) via a second rotating rod (38).

6. The back lifter according to claim 1, characterized in that: The end of the motor arm (35) is rotatably connected to the second bracket (36) via a third rotating rod (39).

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