KR101062930B1 - Apparatus for ascent and descent of bed - Google Patents

Abstract

Bed lifting device is disclosed. According to a preferred embodiment of the present invention, the base plate; Bar-shaped cabinets installed on upper surfaces of both sides of the base plate; A hollow bar shape having a hollow bar shape, the hollow angle being guided by the inside angle and positioned to move up and down by positioning the inside angle; A hollow outer shape having a hollow bar shape and guided by the middle angle and positioned to move up and down by placing the middle angle inside; Located between the outer shell of the both sides, the cylinder for lifting the rod by a predetermined mechanism; A moving frame fixed to an upper end of the rod; Rollers rotatably installed on both lower sides of the moving frame; A belt spanning an outer surface of the roller, one side of which is fixed to the base plate, and the other side of which is fixed to the outer shell; And a center connecting frame connected to the moving frame and the middle angle to transfer the lifting force from the moving frame to the middle angle.

Description

Bed lifter {APPARATUS FOR ASCENT AND DESCENT OF BED}

The present invention relates to a bed lift device.

In general, the medical bed has a structure that can be raised and lowered. At this time, for lifting the bed, one side of the main frame (main frame) of the bed is connected to the bed lifting device.

Such a bed elevating device includes a cylinder. In addition, the cylinder includes a rod capable of vertically moving by a motor, hydraulic pressure, or pneumatic method. The main frame can be moved up and down by moving the rod up and down.

However, in the conventional bed elevating device, the stroke length (or the rod stroke distance) of the cylinder and the elevating or descending distance of the main frame were the same. Therefore, the stroke length of the cylinder had to be secured by the maximum lifting height of the main frame preset.

For this reason, there exists a problem that the size of a cylinder or rod becomes large.

Accordingly, an object of the present invention is to provide a bed lifting device that can minimize the size of the cylinder.

Other objects of the present invention will be readily understood through the following description of the embodiments.

Bed lifting device for achieving the above object is disclosed.

According to a preferred embodiment of the present invention, a bed elevating device, the base plate (base plate); Bar-shaped inner cabinet (bar) is provided on the upper surface of the both sides of the base plate; A hollow bar shape having a hollow bar shape and guided by the inside angle to position the inside angle, and installed in a structure of lifting and lowering; A hollow outer shape having a hollow bar shape and guided by the middle angle and positioned to move up and down by placing the middle angle inside; A cylinder positioned between the outer sides of the both sides and configured to move the rod up and down by a predetermined mechanism; A moving frame fixed to the top of the rod; Rollers rotatably installed on both lower sides of the moving frame; A belt spanning an outer surface of the roller, one side of which is fixed to the base plate, and the other side of which is fixed to the outer shell; And a center connection frame connected to the moving frame and the middle angle to transfer the lifting force from the moving frame to the middle angle.

Here, the moving frame is a bar shape, the length of the moving frame may be equal to the distance between the outer shell of the both sides.

The middle connection frame may be connected to one side of the center angle exposed to the outside when the bed lifting device is in an initial state.

In addition, one side may be fixed to one surface of the moving frame, the other side may further include a guide plate in close contact with one surface of the outer shell.

In addition, located on the upper portion of the moving frame, both sides may further include an outer connection frame fixed to the upper portion of the outer side respectively.

As described above, according to the bed elevating device according to the present invention, the cylinder used when the bed is raised and lowered by raising and lowering the bed main frame by twice the stroke length of the cylinder according to the principle of the movable pulley. There is an advantage that can be made small.

In addition, according to the bed lifting device of the present invention, since the length of the moving frame is formed to be equal to the distance between the outer shell of both sides, there is an advantage that the left and right shake when the moving frame is raised and lowered.

Further, according to the bed elevating device of the present invention, since the intermediate connecting frame is connected to the part exposed to the outside of the middle in the initial state, it is not necessary to modify the structure of the outer shell to connect the intermediate connecting frame to the middle angle. There is an advantage.

In addition, the bed lifting device of the present invention, there is an advantage that the middle angle can be prevented from moving back and forth by the guide plate during the lifting and lowering of the center connection frame.

1 is a front perspective view of the bed lift apparatus in the initial state.
2 is a front perspective view of the bed lifting device in an elevated state.
3 is a rear perspective view of the bed lift apparatus in the initial state.
4 is a rear perspective view of the bed lifting device in an elevated state.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Like reference numerals are used for like elements in describing each drawing. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is said to be "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that another component may exist in between. Should be.

On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention.

Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

The bed elevating device of the present invention can reduce the stroke distance of the cylinder by half when using the principle of the movable pulley to elevate the bed to the same height as before.

1 to 4, the structure of the bed lifting device according to an embodiment of the present invention will be described.

1 is a front perspective view of the bed lift apparatus in the initial state. 2 is a front perspective view of the bed lifting device in an elevated state. 3 is a rear perspective view of the bed lift apparatus in the initial state. 4 is a rear perspective view of the bed lifting device in an elevated state.

Here, the "initial state" means a state in which the upward movement of the bed lifting device is "0". That is, the "initial state" means the state of the bed lift device when the bed is located at the lowest point.

Bed elevating device is a base plate (100, base plate), the inner cabinet 210, the middle 220, outer shell 230, outer connecting frame 240, cylinder 300, moving frame 400, roller 500 ), A belt 600, a center connection frame 700, and a guide plate 800.

The base plate 100 may be located at the bottom. Cabinet 210 may be installed at both sides of the base plate 100.

One side of the inner shell 210 may be fixed to the upper surface of the base plate 100. The interior 210 may be erected in the longitudinal direction on the upper surface of the base plate 100. Cabinet 210 is sufficient if it is a bar (bar) shape. That is, the cabinet 210 may be a square bar, a cylindrical bar, a triangular bar, or the like. The middle angle 220 may be located at the outside of each of the inner cabinets 210.

The middle angle 220 may be a hollow bigo, and the inside angle 210 may be inserted into the inside. As a result, the middle angle 220 may be guided by the internal angle 210 when lifting. The outer shell 230 may be located outside the middle shell 220.

The outer shell 230 may be a hollow bigo, and the middle shell 220 may be inserted into the inner shell 230. As a result, the outer shell 230 may be guided by the middle angle 220 when the elevating body descends. The front surface of the outer shell 230 may be provided with a frame connecting portion 231 having a through hole 231a. The bed frame (not shown) may be in close contact with the frame connecting portion 231 and may be fixed to the frame connecting portion 231 by a screw passing through the through hole 231a. As a result, the bed frame may move up or down as the outer shell 230 moves up and down.

Upper portions of the outer shells 230 on both sides may be fixed by the outer connection frame 240.

The outer connection frame 240 can prevent the left and right shake of the outer shell 230 by holding the outer shell 230 on both sides.

Between the outer shell 230, a cylinder 300 may be located. The cylinder 300 may raise and lower the rod 310 by a pneumatic or hydraulic method. The moving frame 400 may be fixed to the top of the rod 310.

The moving frame 400 may have a bar shape, and a length thereof may be smaller than a distance between the outer shells 230. The moving frame 400 may be located between the outer shells 230 at both sides of the outer connection frame 240. The moving frame 400 may move up and down as the rod 310 moves up and down. On both lower surfaces of the moving frame 400, the roller 500 may be rotatably installed. The length of the moving frame 400 may be equal to the distance between the outer shell 230. As a result, when the moving frame 400 moves up and down, the left and right shakes of the moving frame 400 may be removed.

The roller 500 may rotate with an axis perpendicular to the lifting direction. The belt 600 may hang on the outer surface of the roller 500.

One side of the belt 600 may be fixed to the base plate 100, and the other side of the belt 600 may be fixed to the outer shell 230. As a result, the outer shell 230 may move up and down as the roller 500 moves up and down. At this time, according to the principle of the movable pulley, the outer shell 230 may move up and down by twice the lifting height of the roller 250.

The center connection frame 700 may be connected to the moving frame 400 and the center angle 220. The intermediate connection frame 700 may be located between the outer shell 230 and the cylinder 300. One side of the center connection frame 700 may be fixed to the moving frame 400, and the other side of the center connection frame 700 may be connected to the lower side of the center angle 220. In this case, the other side of the center connection frame 700 may be fixed to the lower side of the center angle 220. Specifically, the other side of the center connection frame 700 may be connected to one side of the center angle 220 exposed to the outside when the bed lifting device 1 is in the initial state. The center connection frame 700 may transmit the lifting force from the moving frame 400 to the center angle 220. As a result, the middle angle 220 may guide the lifting and lowering of the outer shell 230 while lifting and lowering according to the lifting and lowering of the rod 310. The center connection frame 700 is connected to one side of the center angle 220 exposed to the outside when the bed lifting device 1 in the initial state, to connect the center angle 220 and the moving frame 400. It is not necessary to modify the structure of the outer shell 230 separately. That is, the outer shell 230 may be sufficient to be manufactured in a simple hollow bar shape. Thereby, the structure of the bed lifting device 1 can be simplified.

Guide plate 800 may be installed on the back of the bed lifting device (1). One side of the guide plate 800 may be fixed to the rear surface of the moving frame 400, and the other side of the guide plate 800 may be in close contact with the rear surface of the outer shell 230. As a result, shaking of the moving frame 400 back and forth when the moving frame 400 moves up and down may be eliminated.

1 to 4, the lifting operation of the bed lifting device according to an embodiment of the present invention will be described. For convenience of explanation, the explanation will be given based on the lifting operation.

First, the rod 310 of a cylinder can raise by an external operation signal. As the rod 310 rises, the moving frame 400 may rise. The roller 500 may rise by the movement of the moving frame 400. When the roller 500 rises, by the principle of the moving pulley, the outer shell 230 may rise by twice the stroke distance of the rod 310 (or the rising distance of the roller 500). In this case, the lifting force of the moving frame 400 may be transmitted to the center 220 by the center connection frame 700. Thereby, while the center angle 220 rises, the rise of the outer shell 230 can be guided.

The lowering operation may be the inverse of the above.

First, the rod 310 of the cylinder can descend by the external operation signal. As the rod 310 descends, the moving frame 400 may descend. The roller 500 can descend by lowering the moving frame 400. When the roller 500 descends, by the principle of the moving pulley, the outer shell 230 may descend by twice the stroke distance of the rod 310 (or the descending distance of the roller 500). In this case, the descending force of the moving frame 400 may be transmitted to the center angle 220 by the center connection frame 700. Thereby, while the center angle 220 descends, the fall of the outer shell 230 can be guided.

As described above, according to the bed lifting device of the present invention, the outer shell can be raised and lowered by twice the stroke length of the cylinder by the principle of the movable pulley. Thereby, the bed can be raised and lowered by twice the stroke length of the cylinder. Since the cylinder can be made small in size and sufficient bed can be raised and lowered, it is possible to manufacture a bed raising and lowering device using a small cylinder.

In addition, according to the bed lifting device of the present invention, since the length of the moving frame is formed to be equal to the distance between the outer sides of both sides, the left and right shake during lifting and lowering of the moving frame can be eliminated.

Further, according to the bed elevating device of the present invention, since the intermediate connecting frame is connected to the portion exposed to the outside of the middle angle in the initial state, there is no need to modify the structure of the outer shell to connect the middle connecting frame to the middle angle. .

Further, according to the bed elevating device of the present invention, the middle angle can be prevented from swinging back and forth by the guide plate when the center connecting frame is raised and lowered.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art will be able to make various modifications, changes, and additions within the spirit and scope of the present invention. Additions should be considered to be within the scope of the following claims.

100: base plate 210: cabinet
220: center 230: outer
240: outer connection frame 300: cylinder
400: moving frame 500: roller
600: belt 700: center connection frame
800: guide plate

Claims (5)

Base plate; Cabinets installed on both upper surfaces of the base plate; A hollow center angle guided by the inside angle and positioned to move up and down by positioning the inside angle; A hollow outer shell guided by the middle angle and positioned to elevate by placing the middle angle inside; A cylinder positioned between the outer sides of the both sides to elevate the rod; A moving frame fixed to an upper end of the rod; Rollers rotatably installed on both lower sides of the moving frame; A belt spanning an outer surface of the roller, one side of which is fixed to the base plate, and the other side of which is fixed to the outer shell; And a center connecting frame connected to the moving frame and the middle angle to transfer a lifting force from the moving frame to the middle angle.
The center connection frame is connected to one side of the center angle exposed to the outside in the initial state, the upper end is fixed to one side of the moving frame, the lower end further comprises a guide plate in close contact with one side of the outer shell Bed lifting device. delete delete delete delete

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