Nursing bed capable of realizing shifting function

Abstract

The present invention belongs to the technical field of electric nursing beds, and specifically relates to a nursing bed that can realize a shifting function. It includes a nursing bed body and a bed board telescopic unit, wherein a plurality of bed board telescopic units are laid on the nursing bed body along the length direction, and the bed board telescopic unit can be telescoped along the width direction of the bed body. The bed board telescopic unit includes a bed board bracket, a movable bed board and a linear drive mechanism, wherein the bed board bracket is arranged on the bed body, and a guide mechanism is provided on both sides of the bed board bracket. The movable bed board is arranged above the bed board bracket, and the two sides are connected to the guide mechanism through guide rails; the linear drive mechanism is arranged on the bed board bracket and connected to the movable bed board, and the linear drive mechanism is used to drive the movable bed board to telescope. The present invention realizes the translation and tilting of the bed board, solves the problem of shifting of people with limited mobility from a nursing bed to a wheelchair or other bed of different heights in a sitting or lying state, simplifies the shifting process, and improves the comfort of the user.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric nursing beds, and in particular relates to a nursing bed capable of realizing a shifting function. Background Art

[0002] As the aging population becomes a social trend, nursing beds for elderly and disabled patients with limited mobility have become widely used in homes and nursing hospitals. However, existing nursing beds cannot meet the needs of transferring people with limited mobility from nursing beds to wheelchairs or other beds. They require caregivers to carry them or use dedicated transfer machines, which is cumbersome to operate. Summary of the Invention

[0003] In response to the problems and shortcomings of the existing technology, the present invention provides a nursing bed with a shifting function to solve the problem of people with limited mobility shifting from a nursing bed to a wheelchair or other bed of different heights in a sitting or lying position, simplifying the shifting process and improving user comfort.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides a nursing bed capable of realizing a shifting function, comprising a nursing bed body and a bed board telescopic unit, wherein a plurality of bed board telescopic units are laid on the nursing bed body along the length direction, and the bed board telescopic units can be telescoped along the width direction of the nursing bed body.

[0006] The bed board telescopic unit includes a bed board bracket, a movable bed board and a linear drive mechanism, wherein the bed board bracket is arranged on the nursing bed body, and guide mechanisms are provided on both sides of the bed board bracket. The movable bed board is arranged above the bed board bracket, and the two sides are connected to the corresponding guide mechanisms through guide rails; the linear drive mechanism is arranged on the bed board bracket and connected to the movable bed board, and the linear drive mechanism is used to drive the movable bed board and the bed board bracket to move relative to each other.

[0007] The guide mechanism includes a side plate and a fixed bearing structure and a movable bearing structure arranged on the inner side of the side plate, wherein the movable bearing structure is arranged at the front end of the side plate and can move in a direction perpendicular to the guide rail; the fixed bearing structure is arranged between the center and the front end of the side plate.

[0008] The movable bearing structure includes a booster fixing block and two sets of bearing telescopic assemblies, wherein the two sets of bearing telescopic assemblies are arranged in parallel on the side plates and are respectively clamped on the upper and lower sides of the guide rails. The booster fixing block is used to connect the two sets of bearing telescopic assemblies so that the two sets of bearing telescopic assemblies can be telescoped synchronously.

[0009] The bearing telescopic assembly includes a movable bearing, a movable bearing shaft, a spring supporting guide structure, a bracket spring and a bracket spring, wherein the movable bearing shaft is slidingly connected to the side plate, and a movable bearing in contact with the guide rail is provided at the front end, the spring supporting guide structure is provided on the outer side of the side plate, and the bracket spring is sleeved on the spring supporting guide structure and the end portion abuts against the rear end of the movable bearing shaft.

[0010] The front end of the side plate is provided with a notch located between the two bearing telescopic assemblies; one end of the booster fixing block is connected to the two bearing telescopic assemblies, and the other end is a slope.

[0011] A trigger mechanism is provided on the guide rail. When the movable bed board is extended to the maximum stroke position, the trigger mechanism corresponds to the movable bearing structure. The trigger mechanism triggers the movable bearing structure to move backward and disengage from the guide rail. The front end of the movable bed board loses support and tilts downward.

[0012] The trigger mechanism is installed in a blind hole provided on the guide rail. The trigger mechanism includes a bed plate spring guide shaft, a spring push pin and a trigger spring, wherein the bed plate spring guide shaft is arranged at the bottom of the blind hole, one end of the trigger spring is connected to the bed plate spring guide shaft, and the other end is connected to the spring push pin.

[0013] The fixed bearing structure includes two fixed bearings clamped at the upper and lower sides of the guide rail, and the two fixed bearings are respectively mounted on the side plates through two fixed bearing shafts.

[0014] A limit bearing is provided at the rear end of the guide rail, and the maximum extension stroke of the movable bed board is limited by the contact between the limit bearing and the fixed bearing structure.

[0015] The present invention has the following beneficial effects and advantages:

[0016] 1. In the present invention, a set of linear drive mechanisms is installed at the bottom of each bed support. The shifting function for sitting or lying position can be achieved by driving a single or multiple linear drive mechanisms. The number of drive structures can be simplified according to usage requirements, and it has a wide range of applications.

[0017] 2. The present invention can complete the shifting by horizontally moving the bed board when shifting between beds of the same height, and can also complete the shifting by tilting the bed board when shifting between beds of different heights. This can avoid relative movement between the person and the bed board, and prevent additional damage to the human body caused by skin friction during the shifting process.

[0018] 3. The movement mode and driving structure of the movable bed board in the present invention are horizontal movement perpendicular to the height of the human body, which does not interfere with the movement of the nursing bed board along the direction of human height and will not affect the driving structure arrangement of the nursing bed such as back lifting and leg lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an axonometric diagram of a nursing bed capable of realizing a shifting function according to the present invention;

[0020] Figure 2 This is an axonometric view of the bed board telescopic unit of the present invention;

[0021] Figure 3 yes Figure 2 A magnified view of point A in the figure;

[0022] Figure 4 is a schematic diagram of the movable bearing structure of the present invention;

[0023] Figure 5 is a cross-sectional view of the movable bearing structure of the present invention;

[0024] Figure 6 is a schematic diagram of the fixed bearing structure of the present invention;

[0025] Figure 7 The present invention is a schematic diagram of a working state of a nursing bed capable of realizing a shifting function.

[0026] In the figure: 1 is the nursing bed body 1, 2 is the bed board bracket, 20 is the movable bearing structure, 201 is the movable bearing, 202 is the side plate, 203 is the movable bearing shaft, 204 is the spring support guide structure, 205 is the bracket spring, 206 is the booster fixing block, 207 is the fixed bearing shaft, 208 is the fixed bearing, 209 is the bearing clamp ring, 3 is the movable bed board, 301 is the movable bed board body, 302 is the bed board spring guide shaft, 303 is the spring top pin, 304 is the limit bearing, 305 is the guide rail, 306 is the trigger spring, 307 is the limit bearing shaft, and 4 is the linear drive electric cylinder. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 As shown, the present invention provides a nursing bed capable of shifting, comprising a main body 1 and a bedplate retractable unit. Multiple bedplate retractable units are arranged along the length of the main body 1, and the bedplate retractable units are capable of retracting and extending along the width of the main body 1. The bedplate retractable units of the present invention move horizontally, perpendicular to a person's height, without interfering with the bedplate's movement along the height axis, and without affecting the arrangement of the bed's drive mechanisms, such as back and leg lifts.

[0029] like Figure 1 、 Figure 2As shown, in an embodiment of the present invention, the bed board telescopic unit includes a bed board bracket 2, a movable bed board 3 and a linear drive mechanism, wherein the bed board bracket 2 is arranged on the nursing bed body 1, and guide mechanisms are provided on both sides of the bed board bracket 2. The movable bed board 3 is arranged above the bed board bracket 2 and is connected to the guide mechanism on both sides; the linear drive mechanism is arranged on the bed board bracket 2 and connected to the movable bed board 3, and the linear drive mechanism is used to drive the movable bed board 3 and the bed board bracket 2 to move relative to each other.

[0030] Specifically, the movable bed board 3 includes a movable bed board body 301 and guide rails 305 arranged on both sides of the movable bed board body 301 , and the guide rails 305 are connected to the guide mechanism on the bed board bracket 2 .

[0031] In an embodiment of the present invention, the linear drive mechanism includes a linear drive electric cylinder 4, the tail of the linear drive electric cylinder 4 is hinged to a fixed hinge seat provided on the bed board support 2, and the movable end of the linear drive electric cylinder 4 is hinged to a movable hinge seat provided on the movable bed board 3, and the movable bed board 3 is driven to extend and retract on the bed board support 2 by the linear drive electric cylinder 4.

[0032] In an embodiment of the present invention, the guide mechanism includes a side panel 202 and a fixed bearing structure and a movable bearing structure 20 arranged on the inner side of the side panel 202, wherein the movable bearing structure 20 is arranged at the end of the side panel 202 and can move in a direction perpendicular to the guide rail 305, and the fixed bearing structure is arranged at a position between the center and the front end of the side panel 202 to ensure that the front end of the movable bed board 3 can tilt downward when the support of the movable bearing structure 20 is lost.

[0033] like Figure 3-4 As shown, in an embodiment of the present invention, the movable bearing structure 20 includes a booster fixing block 206 and two sets of bearing telescopic assemblies, wherein the two sets of bearing telescopic assemblies are arranged in parallel on the side plate 202 and are respectively clamped on the upper and lower sides of the guide rail 305, and the booster fixing block 206 is used to connect the two sets of bearing telescopic assemblies so that the two sets of bearing telescopic assemblies can be telescoped synchronously.

[0034] like Figure 5As shown, in an embodiment of the present invention, the bearing expansion and contraction assembly includes a movable bearing 201, a movable bearing shaft 203, a spring support guide structure 204, a support spring 205, and the support spring 205. The movable bearing shaft 203 is slidably connected to the side plate 202, and the front end is provided with the movable bearing 201, which contacts the guide rail 305. The movable bearing 201 is connected to the movable bearing shaft 203 via a retaining ring and a shaft shoulder. The spring support guide structure 204 is fixedly connected to the outer side of the side plate 202 by screws. The support spring 205 is sleeved on the spring support guide structure 204, and its end abuts the rear end of the movable bearing shaft 203. The movable bearing 201 is axially movable by the support spring 205. Furthermore, the rear end surface of the movable bearing shaft 203 is provided with a spring receiving groove to facilitate positioning of the support spring 205. The booster fixing block 206 is fixedly connected to the two movable bearing shafts 203 by screws. The booster fixing block 206 is triggered by external force to cause the two movable bearing shafts 203 to retract synchronously into the side plate 202, eliminating the support of the two bearing telescopic components on the guide rail 305.

[0035] Furthermore, a trigger mechanism is provided on the guide rail 305. When the movable bed board 3 is extended to the maximum stroke position, the trigger mechanism corresponds to the movable bearing structure 20. The trigger mechanism triggers the movable bearing structure 20 to move backward and disengage from the guide rail 305. The front end of the movable bed board 3 loses support and tilts downward.

[0036] Specifically, if Figure 5 As shown, the trigger mechanism is installed in a blind hole provided on the guide rail 305. The trigger mechanism includes a bed spring guide shaft 302, a spring push pin 303, and a trigger spring 306. The bed spring guide shaft 302 is disposed at the bottom of the blind hole. One end of the trigger spring 306 is connected to the bed spring guide shaft 302, and the other end is connected to the spring push pin 303.

[0037] Furthermore, the front end of the side plate 202 is provided with a notch between the two bearing extension assemblies; one end of the booster fixing block 206 is connected to the two bearing extension assemblies, and the other end is a beveled surface. When the trigger mechanism moves to the position corresponding to the notch in the side plate 202, the spring ejector pin 303 is ejected under the elastic force of the trigger spring 306, pushing the booster fixing block 206 and the two movable bearing shafts 203 backward, thereby disengaging the two movable bearings 201 from the guide rail 305. The beveled surface at the other end of the booster fixing block 206 ensures that the spring ejector pin 303 and the booster fixing block 206 are in moving contact.

[0038] like Figure 6 As shown, in an embodiment of the present invention, the fixed bearing structure includes two fixed bearings 208 clamped on the upper and lower sides of the guide rail 305, and the two fixed bearings 208 are respectively installed on the side plate 202 through two fixed bearing shafts 207, and the fixed bearings 208 are axially limited by the bearing retaining ring 209.

[0039] Furthermore, a limit bearing 304 is installed at the rear end of the guide rail 305 via a limit bearing shaft 307. The maximum extension stroke of the movable bed board 3 is limited by the contact between the limit bearing 304 and the two fixed bearings 208 in the fixed bearing structure. When the movable bed board 3 is at its maximum extension stroke, the spring ejector pin 303 triggers the retraction of the movable bearing structure 20. In other words, the limit bearing 304 at the end is in limited contact with the two fixed bearings 208 when the movable bearing 201 is retracted. After the movable bed board 3 is disengaged from the track of the movable bearing structure 20, the bed board can be tilted by adjusting the length of the linear drive electric cylinder 4 and contacting the limit bearing 304.

[0040] In this embodiment, the movable bed board 3 and the bed board support 2 are divided into four independent movable bed boards 3 according to the body parts. The movable bed board 3 moves linearly between the tracks formed by two groups of paired bearings of the bed board support 2.

[0041] Furthermore, a gap is designed between the two sets of bearing telescopic assemblies on the side plate 202. When the spring push pin 303 does not reach the gap, the movable bed plate 3 slides linearly on the two sets of bearing structures via the track 305. After the spring push pin 303 reaches the gap, the spring push pin 303 can be ejected by the trigger spring 306 at the rear end, pushing the auxiliary fixed block 206 to move axially along the movable bearing shaft 203. The auxiliary fixed block 206 drives the movable bearing shaft 203 to retract, and the track 305 of the movable bed plate body 301 disengages from the movable bearing 201. At this time, the limit bearing 304 simultaneously reaches the limit position and contacts the fixed bearing 208 to reach the limit position for the horizontal movement of the movable bed plate 3.

[0042] In this embodiment, the movable bed plate 3 can be tilted relative to the bed plate support 2 via a limit bearing 304 and a linear drive electric cylinder 4. This angle is adjusted by adjusting the length of the movable end of the linear drive electric cylinder 4. Specifically, one end of the booster fixed block 206 is connected to the movable bearing shaft 203, and the other end has two inclined surfaces. This facilitates the movement of the spring ejector pin 303 and the booster fixed block 206 when the tilted position of the movable bed plate 3 is restored to the horizontal position.

[0043] like Figure 7 As shown, the present invention provides a nursing bed capable of realizing a shifting function, and its working principle is as follows:

[0044] A plurality of bed support brackets 2 are fixedly mounted on the main body 1 of the nursing bed. A set of linear drive electric cylinders 4 is installed at the bottom of each bed support bracket 2. When performing bed-to-bed shifting at the same height, the movable bed board 3 is linearly moved within the rails on both sides of the bed support bracket 2 by the linear drive electric cylinders 4, completing horizontal shifting in a sitting or lying position. However, the height of a wheelchair is usually lower than that of the nursing bed. During bed-to-chair shifting at different heights, the movable bearing structure 20 is retracted through a trigger mechanism, and the rails 305 of the movable bed board 3 are then freed from the constraints of the movable bearing structure 20. At the same time, the movable bed board 3 is tilted by the rotational support of the limit bearing 304 at the end and the bottom support of the linear drive electric cylinder 4, completing the tilting movement in a sitting or lying position.

[0045] In order to more conveniently complete bed-to-bed and bed-to-chair shifting for people with limited mobility, the present invention provides a nursing bed with a shifting function, which can complete the independent bed board translation and tilting movement, and at the same time realize the shifting function from the nursing bed to wheelchairs or other beds of different heights, simplifying the shifting process and improving the user's comfort.

[0046] The above description is only an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the present invention are included in the scope of protection of the present invention.

Claims

1. A nursing bed capable of realizing a shifting function, characterized in that: The nursing bed comprises a main body (1) and a bed board telescopic unit, wherein a plurality of bed board telescopic units are arranged on the main body (1) along the length direction, and the bed board telescopic units are capable of telescoping along the width direction of the main body (1); The bed board telescopic unit comprises a bed board support (2), a movable bed board (3) and a linear drive mechanism, wherein the bed board support (2) is arranged on the nursing bed body (1), and guide mechanisms are provided on both sides of the bed board support (2); the movable bed board (3) is arranged above the bed board support (2), and both sides are connected to the corresponding guide mechanisms through guide rails (305); the linear drive mechanism is arranged on the bed board support (2) and connected to the movable bed board (3), and the linear drive mechanism is used to drive the movable bed board (3) and the bed board support (2) to move relative to each other; The guide mechanism comprises a side plate (202) and a fixed bearing structure and a movable bearing structure (20) arranged on the inner side of the side plate (202), wherein the movable bearing structure (20) is arranged at the front end of the side plate (202) and is movable in a direction perpendicular to the guide rail (305); the fixed bearing structure is arranged between the center and the front end of the side plate (202); The movable bearing structure (20) comprises a boosting fixed block (206) and two sets of bearing telescopic assemblies, wherein the two sets of bearing telescopic assemblies are arranged in parallel on the side plate (202) and are respectively clamped on the upper and lower sides of the guide rail (305), and the boosting fixed block (206) is used to connect the two sets of bearing telescopic assemblies so that the two sets of bearing telescopic assemblies can be synchronously extended and retracted; A trigger mechanism is provided on the guide rail (305). When the movable bed board (3) is extended to the maximum stroke position, the trigger mechanism corresponds to the movable bearing structure (20). The trigger mechanism triggers the movable bearing structure (20) to move backward and disengage from the guide rail (305). The front end of the movable bed board (3) loses support and tilts downward. A limit bearing (304) is provided at the rear end of the guide rail (305), and the maximum extension stroke of the movable bed board (3) is limited by the contact between the limit bearing (304) and the fixed bearing structure; The bearing telescopic assembly comprises a movable bearing (201), a movable bearing shaft (203), a spring supporting guide structure (204) and a bracket spring (205), wherein the movable bearing shaft (203) is slidably connected to the side plate (202), and a movable bearing (201) in contact with the guide rail (305) is provided at the front end, the spring supporting guide structure (204) is provided on the outside of the side plate (202), and the bracket spring (205) is sleeved on the spring supporting guide structure (204) and the end portion thereof abuts against the rear end of the movable bearing shaft (203); The trigger mechanism is installed in a blind hole provided on the guide rail (305), and comprises a bed plate spring guide shaft (302), a spring top pin (303), and a trigger spring (306), wherein the bed plate spring guide shaft (302) is arranged at the bottom of the blind hole, and one end of the trigger spring (306) is connected to the bed plate spring guide shaft (302), and the other end is connected to the spring top pin (303); The front end of the side plate (202) is provided with a notch located between the two bearing telescopic assemblies; one end of the boosting fixed block (206) is connected to the movable bearing shaft (203), and the other end is two inclined slopes, so that the spring top pin (303) and the boosting fixed block (206) can be in contact with each other when the movable bed plate (3) is restored from its tilted position to a horizontal position.

2. The nursing bed capable of realizing shifting function according to claim 1, characterized in that: The fixed bearing structure comprises two fixed bearings (208) clamped on the upper and lower sides of the guide rail (305), and the two fixed bearings (208) are respectively mounted on the side plate (202) via two fixed bearing shafts (207).

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