CN103892982B - Standing bed with adjustable gravity center - Google Patents

Abstract

The invention discloses an upright bed with an adjustable center of gravity, which comprises a bed frame base and a bed frame whose one end is hinged to one end of the bed frame base, and also includes a bed frame for connecting the bed frame and the bed frame base, and can make the bed frame move along the bed frame. A linear motion device for the base of the bed frame to move to the other end of the base frame, and one end of the linear motion device is hinged to the frame of the bed, and the other end of the linear motion device is connected to the base of the bed frame. In the present invention, by connecting the bed frame and the bed frame base with a linear motion device, the operator can adjust the position of the bed frame on the bed frame base to realize the adjustment of the center of gravity of the entire upright bed in actual use, preventing the center of gravity The upright bed caused by the deviation is unstable and easy to tilt, thus reducing potential safety hazards.

Description

An upright bed with an adjustable center of gravity

technical field

The invention relates to the technical field of medical instruments, in particular to an upright bed with an adjustable center of gravity.

Background technique

Rehabilitation therapy is a new therapeutic discipline that promotes the recovery of physical and mental functions of patients and disabled people, and it is also a new technical specialty. Its purpose is to enable people to restore the ability of daily life, study, work and labor, and social life as much as possible, integrate into society, and improve the quality of life.

In the current field of rehabilitation medicine, for patients who have lost their walking ability due to stroke, spinal injury, traumatic brain injury, etc., the upright bed is usually used to complete the rehabilitation training from lying flat to upright, so as to overcome the patient's orthostatic hypotension, Calcium loss, muscle atrophy and other diseases, so as to help patients gradually restore walking ability.

At present, the existing upright bed includes a bed frame, a bed surface arranged on the bed frame, a stand-up device for making the bed surface reach a vertical position from a horizontal position, and a handle for driving the stand-up device. When in use, first place the bed surface of the upright bed horizontally so that the patient lies flat on the upright bed; then the stand-up device is activated by operating the handle, thereby completing the process of the bed surface of the upright bed changing from a horizontal position to a vertical position. Further, in order to ensure that the patient reaches the edge of the bed frame directly after standing upright, so as to facilitate the movement of the patient, and at the same time, ensure that the length of the bed surface can meet the height requirements of the person. When the bed surface of the current upright bed reaches the state of the vertical position, The vertical face of the bed surface is close to an end face of the bed frame.

But, when the bed surface is in a vertical state, its bed surface is close to an end face of the bed frame, so that the center of gravity of the whole upright bed is biased toward the direction where the bed surface is located, rather than the middle position of the upright bed. Because the deviation of the center of gravity is easy to cause the upright bed to be unstable and easy to tilt, there is a great potential safety hazard for patients with inconvenient movements.

Therefore, how to provide an upright bed with an adjustable center of gravity to prevent the center of gravity from shifting and reduce potential safety hazards is a technical problem to be solved by those skilled in the art.

Contents of the invention

The purpose of the present invention is to provide an upright bed with an adjustable center of gravity, which can prevent the center of gravity from shifting and reduce potential safety hazards.

In order to solve the above technical problems, the present invention provides the following technical solutions:

An upright bed with an adjustable center of gravity comprises a bed frame base and a bed frame whose one end is hinged to one end of the bed frame base, and further includes:

A linear motion device for connecting the bed frame and the bed frame base, and enabling the bed frame to move along the bed frame base to the other end of the bed frame base, and one of the linear motion devices The end surface is hinged with the bed frame, and the other end surface of the linear motion device is connected with the bed frame base.

Preferably, in the above-mentioned upright bed, the linear motion device specifically includes:

The sliding frame whose upper surface is hingedly connected with the bed frame, and whose lower surface is provided with a linear slider;

The polished rod erected on the base of the bed frame, the linear slider is slidably sleeved on the polished rod.

Preferably, in the above-mentioned upright bed, the sliding frame is a square frame, the linear sliders are arranged on a set of opposite sides of the sliding frame, and there are two polished rods, which are distributed on the base of the bed frame on both sides.

Preferably, in the above-mentioned upright bed, there are four linear sliders, which are distributed on the four corners of the sliding frame.

Preferably, the above-mentioned upright bed further includes a driving device for driving the linear motion device.

Preferably, in the above-mentioned upright bed, the driving device is a first air cylinder, and the telescopic rod of the first air cylinder is connected with the sliding frame, and the main body of the first air cylinder is connected with the base of the bed frame.

Preferably, in the above-mentioned upright bed, the stand-up device of the upright bed is fixed on the other end of the base of the bed frame, and is used to push the base of the bed to rotate around the hinge point hinged with the base of the bed frame A telescopic device, and the telescopic end of the telescopic device is connected with the bed frame.

Preferably, in the above-mentioned upright bed, the telescopic device is a second air cylinder, the main body of the second air cylinder is connected with the base of the bed frame, and the telescopic rod of the second air cylinder is connected with the bed frame.

Preferably, the above-mentioned upright bed further includes a limit switch for limiting the linear motion device.

Preferably, the above-mentioned upright bed further includes support pulleys arranged at the other end of the bed frame base for supporting the bed frame.

It can be seen from the above technical solutions that the present invention provides an upright bed with an adjustable center of gravity, which includes a bed frame base and a bed frame whose one end is hinged to one end of the bed frame base, and also includes a bed frame for connecting the bed frame with the bed frame. A frame base, and a linear motion device capable of moving the bed frame along the bed frame base to the other end of the bed frame base, and one end of the linear motion device is hinged to the bed frame, and the other end of the linear motion device is connected to the bed frame base. In the present invention, by connecting the bed frame and the bed frame base with a linear motion device, it can be ensured that in actual use, the operator can adjust the position of the bed frame on the bed frame base, thereby realizing the adjustment of the center of gravity of the entire upright bed, preventing the center of gravity The upright bed caused by the deviation is unstable and easy to tilt, thus reducing potential safety hazards.

Description of drawings

Fig. 1 is the structural representation of the horizontal state of the upright bed with adjustable center of gravity provided by the embodiment of the present invention;

Fig. 2 is a structural schematic diagram of the initial position of the linear motion device installed on the base of the bed frame provided by the embodiment of the present invention;

Fig. 3 is a schematic structural view of the terminal position of the linear motion device installed on the base of the bed frame provided by the embodiment of the present invention;

Fig. 4 is the schematic structural view of the bed frame provided by the embodiment of the present invention;

Fig. 5 is a schematic structural diagram of the upright bed with an adjustable center of gravity provided by an embodiment of the present invention in a vertical state.

detailed description

The core of the present invention is to provide an upright bed with an adjustable center of gravity, which prevents the center of gravity from shifting and reduces potential safety hazards.

In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Please refer to Fig. 1-Fig. 5, the present invention discloses a kind of upright bed with adjustable center of gravity, comprising a bed frame base 2 and a bed frame 1 whose one end is hinged with one end of the bed frame base 2, and it also includes a bed frame for connecting the bed frame 1 and the bed frame base 2, and a linear motion device capable of moving the bed frame 1 along the bed frame base 2 to the other end of the bed frame base 2, and one end of the linear motion device is hinged to the bed frame 1, and the linear motion device The other end links to each other with bed frame base 2.

In the present invention, by connecting the bed frame 1 and the bed frame base 2 with a linear motion device, it can be ensured that the operator adjusts the position of the bed frame 1 on the bed frame base 2 to adjust the center of gravity of the entire upright bed during actual use. Adjustable to prevent the problem of instability and easy tilting of the upright bed caused by the deviation of the center of gravity, thus reducing potential safety hazards.

Wherein, a first rotating shaft support 52 and a rotating shaft (not shown in the figure) sleeved on the first rotating shaft support 52 are arranged on the bed frame 1. Correspondingly, the bed frame base 2 is provided with a A rotating shaft support 52 cooperates with the second rotating shaft supporting 51 on the above rotating shaft.

In a specific embodiment, the above-mentioned linear motion device specifically includes: a sliding frame 3 whose upper surface is hingedly connected with the bed frame 1, and a linear slider 32 is arranged on the lower surface of the sliding frame 3; 31. The linear slider 32 is slidably sleeved on the polished rod 31. During operation, the relative sliding between the bed frame 1 and the bed frame base 2 is realized by sliding the linear slider 32 on the polished rod 31 . Those skilled in the art can understand that, in actual production, the linear motion device can also be configured as a ball screw structure. Specifically, the lead screw guide rail is fixed on the bed frame base 2, and the lead screw nut matched with the lead screw guide rail is fixed on the bed frame 1, and the lead screw nut is sheathed on the lead screw guide rail. When in use, the motor can drive the lead screw guide rail to rotate, so that the lead screw nut can move linearly along the lead screw guide rail, that is, the relative movement between the bed frame 1 and the bed frame base 2 can be completed. The embodiment of the present invention is not limited to the above two connection methods, and other methods that can realize the movement of the bed frame 1 on the bed frame base 2 are also within the scope of protection.

In a preferred embodiment, the sliding frame 3 is set as a square frame, and the linear sliders 32 are arranged on a set of opposite sides of the sliding frame 3 , and there are two polished rods 31 distributed on both sides of the bed frame base 2 . The present invention ensures that it cooperates with the bed frame base 2 by setting the sliding frame 3 as a square frame. In order to improve the stability of the relative movement between the bed frame 1 and the bed frame base 2, specifically, the linear sliders 32 are arranged on a set of opposite sides of the sliding frame 3, and correspondingly, the polished rods 31 are set as two, that is, straight lines The sliders 32 are respectively arranged on the two polished rods 31 to form two sliding tracks. In a specific embodiment, the shape, size and material of the sliding frame 3 are not limited, and the designer can make corresponding choices according to different needs.

On the basis of the above-mentioned technical solution, four linear sliders 32 are provided, and they are respectively arranged on the four corners of the sliding frame 3 .

In a further embodiment, a driving device 4 for driving the linear motion device is also included. In order to reduce the labor intensity of the operator and realize the automation of the device, a drive device 4 for driving the linear motion device is provided in the present invention. When in use, the work of the linear motion device can be realized through the drive device 4, avoiding manual alignment of the linear motion device. The driving of the movement device effectively reduces the labor intensity of the operator.

Specifically, the driving device 4 is a first air cylinder, and the telescopic rod of the first air cylinder is connected with the sliding frame 3 , and the main body of the first air cylinder is connected with the bed base 2 . Through the telescopic movement of the telescopic rod of the first air cylinder, the movement of the bed frame 1 connected with the telescopic rod is realized.

In another embodiment, the stand-up device of the upright bed is fixed on the other end of the bed frame base 2, and is used to push the bed frame 1 to rotate around the hinge point articulated with the bed frame base 2, and the telescopic device 6 The telescopic end of device 6 links to each other with bedstead 1. When the linear motion device drives the bed frame 1 to move along the bed frame base 2, the length of the telescopic device 6 remains unchanged at the initial stage, so that the bed frame 1 rotates around the hinge point where it is hinged with the bed frame base 2, thereby Realize the stand-up process of bed frame. When the linear motion device moves to the preset position, that is, the horizontal movement of the bed frame 1 on the bed frame base 2 reaches the preset position, the linear motion device stops driving the bed frame 1 to rotate around the hinge point, and then, the expansion and contraction of the telescopic device 6 End stretches out, so that its length increases, thereby makes bed frame 1 continue to rotate around hinge point, until reaching vertical position, completes the stand of bed frame 1.

Specifically, the telescopic device 6 is set as a second air cylinder, and the main body of the second air cylinder is connected with the bed frame base 2 , and its telescopic rod is connected with the bed frame 1 .

In order to ensure the position of the center of gravity of the upright bed with an adjustable center of gravity, the position of the linear motion device needs to be limited. Therefore, this embodiment also includes a limit switch for limiting the linear motion device. When the linear motion device moves to the limit switch, it touches the limit switch, so that the limit switch is in a disconnected state, thereby preventing the linear motion device from continuing to move. In this embodiment, by using limit switches, the adjustment accuracy of the center of gravity position of the upright bed can be improved.

Specifically, the limit switch is arranged on the base 2 of the bed frame, and there are two in number, arranged opposite to each other.

In order to ensure the stability of the bed frame 1 on the bed frame base 2 and to ensure the stability of the bed frame 1 running on the linear motion device, a support for supporting the bed frame 1 is also provided on the bed frame base 2 in this embodiment. Support pulley 7. When the bed frame 1 is placed horizontally, the support pulley 7 plays a supporting role; when the bed frame 1 is driven by the linear motion device to run along the bed frame base 2, the bed frame 1 and the bed frame support 2 can be connected by the rotation of the support pulley 7 The friction between them becomes rolling friction, thereby reducing the wear rate of the bed frame 1 and improving its service life.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. An upright bed with an adjustable center of gravity, comprising a bed frame base (2) and an end hinged bed frame (1) with one end of the bed frame base (2), characterized in that it also includes: It is used to connect the bed frame (1) and the bed frame base (2), and can make the bed frame (1) move along the bed frame base (2) to the other side of the bed frame base (2). A linear motion device that moves at one end, and one end surface of the linear motion device is hinged to the bed frame (1), and the other end surface of the linear motion device is connected to the bed frame base (2); The linear motion device specifically includes: a sliding frame (3) whose upper surface is hingedly connected to the bed frame, and whose lower surface is provided with a linear slider (32); A polished rod (31) erected on the bed frame base (2), and the linear slider (32) is slidably sleeved on the polished rod (31). 2. The upright bed according to claim 1, characterized in that, the sliding frame (3) is a square frame, and the linear sliders (32) are arranged on a group of opposite sides of the sliding frame (3) , and there are two polished rods (31), which are distributed on both sides of the bed frame base (2). 3. The upright bed according to claim 2, characterized in that there are four linear sliders (32) distributed on the four corners of the sliding frame (3). 4. The upright bed according to claim 2, further comprising a drive device (4) for driving the linear motion device. 5. The upright bed according to claim 4, characterized in that, the driving device (4) is a first air cylinder, and the telescopic rod of the first air cylinder is connected with the sliding frame (3), and the first air cylinder The main body of an air cylinder is connected with the bed frame base (2). 6. The upright bed according to claim 1, characterized in that, the standing device of the upright bed is fixed on the other end of the bed frame base (2), and is used to push the bed frame (1) around It is a telescopic device (6) that rotates at the hinge point hinged with the bed frame base (2), and the telescopic end of the telescopic device (6) is connected with the bed frame (1). 7. The upright bed according to claim 6, characterized in that, the telescoping device (6) is a second cylinder, the main body of the second cylinder is connected with the bed base (2), and the second The telescopic rod of the air cylinder is connected with the bed frame (1). 8. The upright bed according to any one of claims 1-7, further comprising a limit switch for limiting the linear motion device. 9. The upright bed according to claim 8, further comprising a supporting pulley (7) arranged at the other end of the bed frame base (2) for supporting the bed frame (1).