A multi-angle medical bed's underframe structure

Abstract

The utility model belongs to medical instrument technical field especially relates to a bottom frame structure of multi -angle medical bed, include: base, lower support arm, upper support arm, support arm connecting piece, telescopic locking device, telescopic locking device, bed surface support frame, bed surface, lower support arm, upper support arm and base, bed surface support frame jointly constitute a parallelogram structure, change the type of parallelogram through the telescopic function of telescopic locking device no.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to the base frame structure of a multi-angle medical bed. Background Technology

[0002] In medical practice, doctors often need to adjust the posture of multi-position medical beds according to treatment needs to better accommodate the patient's position during treatment. Currently, most medical beds on the market adopt a parallelogram lifting structure, which can usually only raise and lower the bed surface as a whole, and cannot achieve large-angle adjustment of the entire bed surface, thus failing to better meet treatment needs. At the same time, some patients with disabilities have difficulty getting in and out of bed independently. Therefore, it is essential to enable the medical bed surface to have overall angle adjustment or even an upright position. This not only better accommodates the patient's position during treatment but also facilitates getting in and out of bed for patients with limited mobility or the elderly.

[0003] US9642761B2 discloses a base frame structure for a multi-angle medical bed, which uses a single support arm plus an ultra-long electric telescopic rod. To prevent the bed structure from shaking, it is necessary to ensure that the mounting holes at both ends of the electric telescopic rod have very small gaps with the mounting pins, which requires high machining precision. In addition, the electric telescopic rod disclosed therein, which is used to adjust the angle of the bed surface, is fixed at one end to the base frame and at the other end to the bed surface support frame, resulting in a very long electric telescopic rod, which also requires high strength. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a base frame structure for a multi-angle medical bed, which can not only achieve overall raising and lowering of the bed surface, but also adjust the horizontal angle of the bed surface. This utility model embodiment adopts a parallelogram structure with double cantilever support, and the bed surface can be raised using a common electric telescopic rod. Moreover, the parallelogram structure can more effectively prevent bed surface swaying compared to the single cantilever structure in the prior art. This utility model further adjusts the installation position for adjusting the bed surface angle, installing one end on the lower support arm and the other end on the bed surface support frame, greatly reducing the length of the electric telescopic rod.

[0005] This utility model embodiment is implemented as follows: a base frame structure for a multi-angle medical bed includes: a base, a lower support arm, an upper support arm, a support arm connector, a telescopic locking device one, a telescopic locking device two, a bed surface support frame, and a bed surface.

[0006] The lower end of the lower support arm is rotatably connected to the front of the base, the lower end of the upper support arm is rotatably connected to the rear of the base, the upper end of the lower support arm is rotatably connected to the front of the support arm connector, and the upper end of the upper support arm is rotatably connected to the rear of the support arm connector.

[0007] The lower support arm is kept parallel to the upper support arm;

[0008] The lines connecting the lower and upper support arms to the base, the lines connecting the lower and upper support arms to the support arm connectors, the lower support arm, and the upper support arm form a parallelogram structure. The upper end of the parallelogram structure has two rotating connection points, one at the front and one at the back. The lower end of the bed support frame also has two rotating connection points, one at the front and one at the back. The front rotating connection point at the lower end of the bed support frame is rotatably connected to the rear rotating connection point at the upper part of the parallelogram structure. The bed support frame can rotate around the rear rotating connection point at the upper part of the parallelogram.

[0009] In a further technical solution, one end of the telescopic locking device is rotatably connected to the lower part of the parallelogram structure, and the other end of the telescopic locking device is rotatably connected to the upper part of the parallelogram. The telescopic locking device has telescopic and locking functions. The telescopic locking device is used to change the included angle between two adjacent sides of the parallelogram. When the telescopic locking device extends, it drives the lower support arm and the upper support arm to rotate upwards simultaneously around their rotational connection point with the base. When the telescopic locking device retracts, it drives the lower support arm and the upper support arm to rotate downwards simultaneously around their rotational connection point with the base.

[0010] In a further technical solution, one end of the telescopic locking device 2 is rotatably connected to the front rotating connection point of the upper end of the parallelogram structure, and the other end of the telescopic locking device 2 is rotatably connected to the rear rotating connection point of the lower end of the bed support frame; the telescopic locking device 2 has telescopic and locking functions, and the telescopic locking device 2 is used to change the horizontal angle between the bed support frame and the horizontal plane.

[0011] In a further technical solution, the bed surface is mounted on the upper part of the bed surface support frame, and the telescopic locking device extends and retracts, driving the bed surface to rotate around the front rotating connection point at the lower end of the bed surface support frame as the axis.

[0012] In a further technical solution, when the telescopic locking device extends, it drives the lower support arm and the upper support arm to rotate upwards simultaneously around their rotational connection point with the base, thereby raising the bed support frame and the bed surface; when the telescopic locking device retracts, it drives the lower support arm and the upper support arm to rotate downwards simultaneously around their rotational connection point with the base, thereby lowering the height of the bed support frame and the bed surface.

[0013] In a further technical solution, the retraction of the second telescopic locking device drives the bed support frame and the tail of the bed to descend and the head to rise; the extension of the second telescopic locking device drives the bed support frame and the tail of the bed to rise and the head to descend.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the lower support arm, upper support arm, base, and bed support frame together to form a parallelogram structure, the shape of the parallelogram is changed by the telescopic locking device one, so as to achieve the functions of bed support frame and bed lifting; the bed support frame is rotatably connected to the parallelogram structure, and a telescopic locking device two is installed between the bed support frame and the parallelogram structure, and the angle between the bed support frame and the bed surface and the horizontal plane is adjusted by the telescopic locking device two; thus, this utility model has the functions of bed lifting and bed surface angle adjustment, and has high practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the base frame structure of a multi-angle medical bed provided in an embodiment of the present invention.

[0016] Figure 2 An angle diagram of the bed surface of a base frame structure for a multi-angle medical bed provided in an embodiment of this utility model.

[0017] Figure 3 An angle diagram of the bed surface of another multi-angle medical bed frame structure provided in an embodiment of this utility model.

[0018] Figure 4 An angle diagram of the bed surface of a base frame structure for another multi-angle medical bed provided in this embodiment of the present invention.

[0019] In the attached diagram: 1-base, 2-lower support arm, 3-upper support arm, 4-support arm connector, 5-telescopic locking device one, 6-telescopic locking device two, 7-bed surface support frame, 8-bed surface. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] like Figure 1 , 2As shown in Figures 3 and 4, the base 1 is supported on the ground. The lower end of the lower support arm 2 is rotatably connected to the base 1, and the upper end of the lower support arm 2 is rotatably connected to the support arm connector 4. The lower end of the upper support arm 3 is rotatably connected to the base 1, and the upper end of the upper support arm 3 is rotatably connected to the support arm connector 4. The base 1, lower support arm 2, upper support arm 3, and support arm connector 4 are rotatably connected to form a movable parallelogram. One end of the telescopic locking device 5 is rotatably connected to the lower end of the lower support arm 2, and the other end is rotatably connected to the upper end of the upper support arm 3. The connection through the telescopic locking device 5 makes the parallelogram form two triangles.

[0023] The lower end of the bed support frame 7 is rotatably connected to the support arm connector 4. One end of the telescopic locking device 6 is rotatably connected to the bed support frame 7, and the other end is rotatably connected to the support arm connector 4. The bed surface 8 is fixedly connected to the bed support frame 7.

[0024] Through the above connection, when the telescopic locking device 5 extends and becomes longer, the lower support arm 2 and the upper support arm 3 rotate upward along the base 1, raising the bed surface 8; when the telescopic locking device 5 retracts and becomes shorter, the lower support arm 2 and the upper support arm 3 rotate downward along the base 1, lowering the bed surface 8; when the telescopic locking device 6 extends and becomes longer, the bed surface 8 rotates to the right; when the telescopic locking device 6 retracts and becomes shorter, the bed surface 8 rotates to the left.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A base frame structure for a multi-angle medical bed, characterized in that, include: Base, lower support arm, upper support arm, support arm connector, telescopic locking device one, telescopic locking device two, bed support frame, bed; The lower end of the lower support arm is rotatably connected to the front of the base, the lower end of the upper support arm is rotatably connected to the rear of the base, the upper end of the lower support arm is rotatably connected to the front of the support arm connector, and the upper end of the upper support arm is rotatably connected to the rear of the support arm connector. The lower support arm is kept parallel to the upper support arm; The lines connecting the lower and upper support arms to the base, the lines connecting the lower and upper support arms to the support arm connectors, and the lower and upper support arms together form a parallelogram structure. The upper end of the parallelogram structure has two rotating connection points, and the lower end of the bed support frame has two rotating connection points. The front rotating connection point at the lower end of the bed support frame is rotatably connected to the rear rotating connection point at the upper part of the parallelogram structure. The bed support frame rotates around the rear rotating connection point at the upper part of the parallelogram.

2. The base frame structure of a multi-angle medical bed according to claim 1, characterized in that, One end of the telescopic locking device is rotatably connected to the lower part of the parallelogram structure, and the other end of the telescopic locking device is rotatably connected to the upper part of the parallelogram. The telescopic locking device has telescopic and locking functions, and the telescopic locking device is used to change the included angle between two adjacent sides of the parallelogram. When the telescopic locking device extends, it drives the lower support arm and the upper support arm to rotate upwards simultaneously around their rotational connection point with the base; when the telescopic locking device retracts, it drives the lower support arm and the upper support arm to rotate downwards simultaneously around their rotational connection point with the base.

3. The base frame structure of a multi-angle medical bed according to claim 1, characterized in that, One end of the telescopic locking device 2 is rotatably connected to the front rotating connection point of the upper end of the parallelogram structure, and the other end of the telescopic locking device 2 is rotatably connected to the rear rotating connection point of the lower end of the bed support frame. The second telescopic locking device has telescopic and locking functions. The telescopic locking device is used to change the horizontal angle between the bed support frame and the horizontal plane.

4. The base frame structure of a multi-angle medical bed according to claim 1 or 3, characterized in that, The bed surface is mounted on the upper part of the bed surface support frame. The telescopic locking device extends and retracts, driving the bed surface to rotate around the front rotating connection point at the lower end of the bed surface support frame as the axis.

5. The base frame structure of a multi-angle medical bed according to claim 2, characterized in that, When the telescopic locking device extends, it drives the lower support arm and the upper support arm to rotate upwards simultaneously around their rotational connection point with the base, thereby raising the bed support frame and the bed surface. When the telescopic locking device retracts, it drives the lower support arm and the upper support arm to rotate downwards simultaneously around their rotational connection point with the base, thereby lowering the height of the bed support frame and the bed surface.

6. The base frame structure of a multi-angle medical bed according to claim 4, characterized in that, When the telescopic locking device 2 retracts, it drives the bed support frame and the tail of the bed to descend and the head to rise; when the telescopic locking device 2 extends, it drives the bed support frame and the tail of the bed to rise and the head to descend.

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