CN113440352B - Anti-rolling nursing bed with adjustable bed surface fluctuation - Google Patents

Abstract

The invention relates to the technical field of nursing beds, in particular to an anti-rolling nursing bed with an adjustable bed surface fluctuation. The movable bed comprises a first rotating shaft, a scroll rod is coaxially connected to the center of the first rotating shaft, a plurality of first fluctuation parts and second fluctuation parts are coaxially connected to two sides of the scroll rod on the first rotating shaft, the first rotating wheel and the second rotating wheel are symmetrically connected through an eccentric shaft arranged at an eccentric position, a connecting rod is hinged to the eccentric shaft, a movable column is hinged to one end of the connecting rod, a fluctuation mechanism is arranged, a crankshaft connecting rod structure is formed by the first rotating shaft and the connecting rod, the movable column drives a splicing plate to reciprocate up and down, the first fluctuation parts and the second fluctuation parts are alternately arranged on the first rotating shaft, and along with the rotation of the first rotating shaft, the first fluctuation parts and the second fluctuation parts are in wavy fluctuation reciprocating motion, so that the problem that a bed surface fluctuates, the patient can be effectively bedridden for a long time, the movement is inconvenient, the implantation part can not normally ventilate, and the skin generates bedsore is solved.

Description

An anti-rolling nursing bed with adjustable bed surface undulation

technical field

The invention relates to the technical field of nursing beds, in particular to an anti-rolling nursing bed with adjustable bed surface undulation.

Background technique

When medical staff complete the work of internal medicine nursing, a problem often encountered is that because many patients are in a state of bed rest for a long time, the implantation site is always unable to be ventilated normally, the local stress of the body is concentrated, and the skin will produce bedsores over time, causing patients Bring great pain, in order to solve this problem, medical staff will often turn over the patient, but, when encountering overweight patients or patients who are not suitable for moving, this method is no longer effective, and it is not effective for patients In the process of turning over, the patient may roll off the nursing bed due to improper operation. Therefore, the purpose of the present invention is an anti-rolling nursing bed with an adjustable bed surface to solve the problem of bed sores and inconvenient movement of the patient when the patient is in bed for a long time. .

Contents of the invention

The object of the present invention is to provide an anti-rolling nursing bed with an adjustable bed surface undulation, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the object of the present invention is to provide an anti-rolling nursing bed with adjustable bed surface undulation, including a bed body, a heave mechanism and a lifting structure arranged on the bed body;

The undulating mechanism includes at least a first rotating shaft, a worm rod is coaxially connected to the center of the first rotating shaft, and a plurality of first undulating members and a second undulating member are coaxially connected on both sides of the worm rod on the first rotating shaft. The undulating member, the first undulating member at least includes a first rotating wheel and a second rotating wheel, the first rotating wheel and the second rotating wheel are symmetrically connected by an eccentric shaft provided at an eccentric place, and the eccentric shaft A connecting rod is hinged, one end of the connecting rod is hinged with a movable column, and the top of the movable column is fixedly connected with a splicing plate, and the upper surface of the splicing plate is provided with a positioning chute close to the center of the edges of the front and rear ends. One end of the first rotating shaft is fixedly connected with a rotary handle;

When the undulating mechanism of this embodiment is in use, the handle is rotated, and the first shaft rotates with the rotation of the handle. When the first shaft rotates, the first undulating member and the second undulating member follow the rotation of the first shaft When the rotation makes up and down reciprocating linear motion, and the initial state of the eccentric shaft on the first undulating part is at the bottom, the splicing plate on the first undulating part shrinks downward, and at this time the eccentric shaft on the second undulating part is rotating to On the top of the first rotating wheel, the splicing plate on the second undulating piece is in a jacked up state, and when the eccentric shafts on the first undulating piece and the second undulating piece rotate to the same level, the first undulating piece and the second undulating piece It is in a horizontal state, that is, with the selection of the first rotating shaft, the first undulating part and the second undulating part drive the splicing plate to reciprocate alternately up and down along the second through hole, and the bed surface is spliced by several splicing plates, which realizes The ups and downs of the bed are adjusted.

The lifting structure includes at least a second rotating shaft, the center of the second rotating shaft is fixed and coaxially connected with a turbine, the front and rear ends of the turbine are coaxially connected with a cam, and the top of the cam is rollingly connected with a power rod, so The bottom of the power rod is provided with a wheel groove, and the center of the side wall surface of the wheel groove is fixedly connected with an installation shaft, and a pulley is fixedly installed on the installation shaft, and the side wall surface of the power rod is located at the top edge of the wheel groove A first limiting ring is fixedly connected, a first spring is nested and connected to the power rod, and one end of the first spring is fixedly connected to the upper surface of the first limiting ring;

When the lifting structure of this embodiment is in use, the worm rotates with the rotation of the first shaft, and the turbine meshed with the worm rotates synchronously, thereby realizing the synchronous rotation of the second shaft and the first shaft. When rotating, it drives the cams at both ends to rotate synchronously, and the pulley attached to the cam rolls along the path of the cam, and then drives the power rod to reciprocate up and down, so that when the bed surface rises and falls, the power rod drives the guardrail to realize synchronous ups and downs. During the rising process of the bed, the guardrails that rise synchronously can effectively prevent the patient from rolling off the nursing bed due to the insufficient height of the guardrail during the rising process of the bed, thus ensuring the safety of the patient.

As a further improvement of the technical solution, the bed body includes at least a bed frame, the center of the bed frame is fixedly connected with a beam, and the upper surface of the bed frame is located on the left and right sides of the beam and symmetrically opened with hollow undulating areas. The lower surface of the bed frame is fixedly connected with a support tube near the center of the edges of the front and rear sides, the left and right sides of the support tube are fixedly connected with positioning tubes, the bottom of the bed frame is fixedly connected with a support plate, and the upper surface of the bed frame is connected with the The lower surface of the support plate communicates with the first through hole opened at the center of the surface of the support cylinder. The support cylinder is the same as the positioning cylinder, and a guardrail is inserted and fixed in the first through hole. Positioning sliders are fixedly connected at positions where the ends are all located at the bottom, and a second limiting ring is fixedly connected to the side wall of the positioning slider near the edge of the bottom, and a second spring is fixedly connected to the upper surface of the second limiting ring.

As a further improvement of the technical solution, a number of second through holes are opened at the center of the upper surface of the support plate, and the lower surface of the second through holes is fixedly connected with a mounting plate between the two second through holes. The surface of the side wall of the mounting plate is provided with a second shaft hole, and the edges of the left and right ends of the lower surface of the support plate are fixedly connected with a tail plate and a top plate. The holes are aligned with the first shaft hole, the lower surface of the support plate is fixedly connected with the load-bearing block near the front and rear central edges, the third shaft hole is opened on the side wall surface of the load-bearing block, and the four corners of the lower surface of the bed frame are fixed Supporting legs are connected, and the supporting legs are fixedly connected by supporting cross bars.

As a further improvement of the technical solution, the first undulating member and the second undulating member are alternately fixed on the first rotating shaft, and the movement paths of the first undulating member and the second undulating member are opposite.

As a further improvement of the technical solution, the upper and lower ends of the connecting rod are fixedly connected with hinge blocks, the center of the side wall surface of the hinge block is provided with a hinge hole, and the lower surface of the movable column is provided with a U-shaped hinge groove. A hinge shaft is fixedly connected to the inner wall of the hinge groove.

As a further improvement of the technical solution, the connecting rod is hinged to the hinge shaft through the hinge block, and the connecting rod is hinged to the eccentric shaft through the hinge block.

As a further improvement of the technical solution, one end of the first rotating shaft is coaxially fixed in the first shaft hole on the tail plate, and the other end of the first rotating shaft is fixedly installed on the top plate through a bearing In the first shaft hole, the first rotating shaft is fixedly connected to several mounting plates through bearings.

As a further improvement of the technical solution, the second rotating shaft is fixedly connected to the two third shaft holes through bearings, and the second rotating shaft is meshedly connected to the worm rod through the worm gear.

As a further improvement of the technical solution, the undulating mechanism is slidingly connected with the second through hole through the movable column, and several splicing plates are evenly laid in the hollow undulating area, and the positioning chute is connected with the Position the slider to fit.

As a further improvement of the technical solution, one end of the power rod is fixedly connected to the center of the lower surface of the guardrail, the guardrail is plugged and fixed with the support tube through the power rod, and one end of the first spring is connected to the The lower surface of the support plate is fixedly connected, the length of the positioning slide bar is the same as that of the power rod, and one end of the second spring is fixedly connected to the lower surface of the support plate.

Compared with prior art, the beneficial effect of the present invention:

1. In this kind of anti-rolling nursing bed with adjustable bed surface, through the set up and down mechanism, the crankshaft connecting rod structure formed by the first rotating shaft and the connecting rod drives the splicing plate to reciprocate up and down through the movable column, and passes through the second The first undulating piece and the second undulating piece are arranged alternately on the first rotating shaft. With the rotation of the first rotating shaft, the first undulating piece and the second undulating piece reciprocate in a wave-like manner, realizing the adjustable bed surface undulation , effectively improving the patient's long-term bed rest, inconvenient movement, abnormal ventilation of the implantation site, and bedsores on the skin.

2. In the anti-rolling nursing bed with adjustable bed surface undulation, through the provided turbine and worm rod, the turbine and worm rod realize the synchronous transmission of the first rotating shaft and the second rotating shaft. When the bed surface rises and falls, Through the transmission cooperation of the cam and the pulley, the power bar rises and falls synchronously with the guardrail.

3. In this kind of anti-rolling nursing bed with adjustable bed surface, through the set lifting structure, the lifting structure drives the guardrail to rise and fall synchronously with the ups and downs of the splicing board, and through the synchronous transmission of the first rotating shaft and the second rotating shaft, During the rising of the bed surface, the guardrails rise synchronously, which can effectively prevent the patient from falling off the nursing bed due to the insufficient height of the guardrails during the rising process of the bed surface, thus ensuring the safety of the patients.

Description of drawings

Fig. 1 is the overall structural representation of embodiment 1;

Fig. 2 is the overall structural plan view of embodiment 1;

Fig. 3 is the bottom view schematic diagram of the local structure of embodiment 1;

Fig. 4 is a schematic bottom view of the local structure of the support plate in embodiment 1;

Fig. 5 is the structural representation of the bed frame of embodiment 1;

Fig. 6 is the structural representation of the support plate of embodiment 1;

Fig. 7 is a schematic diagram of the connection structure between the bed board frame and the heave mechanism in embodiment 1;

8 is a schematic diagram of the overall structure of the heave mechanism in Embodiment 1;

9 is an enlarged schematic view of structure A of embodiment 1;

Fig. 10 is a schematic diagram of the connection structure between the first relief member and the second relief member in embodiment 1;

Fig. 11 is a schematic plan view of the connection structure between the first relief member and the second relief member in embodiment 1;

Fig. 12 is a schematic diagram of the connection structure of the first relief member and the second relief member in a horizontal state in Embodiment 1;

Fig. 13 is a schematic plan view of the connection structure between the first relief member and the second relief member in a horizontal state in Embodiment 1;

Fig. 14 is a schematic diagram of the overall structure of the first undulating member in embodiment 1;

Fig. 15 is a schematic diagram of the explosion structure of the first undulating member in embodiment 1;

Fig. 16 is a structural schematic diagram of the lifting structure of embodiment 1;

FIG. 17 is a schematic structural diagram of the power rod in Embodiment 1.

The meanings of each symbol in the figure are:

1. Bed body; 101. Bed frame; 1011. Beam; 1012. Hollow undulating area; 1013. Positioning slider; 102. Support plate; 1021. Support cylinder; 1022. Positioning cylinder; 1023. First through hole; 1025, tail plate; 1026, top plate; 10261, first shaft hole; 1027, mounting plate; 10271, second shaft hole; 1028, bearing block; 10281, third shaft hole; 103, guardrail; 104 , supporting legs; 105, supporting cross bars;

2. Undulating mechanism; 201, first rotating shaft; 2011, rotary handle; 202, first undulating member; 2021, first rotating wheel; 2022, second rotating wheel; 2023, eccentric shaft; 2024, connecting rod; 20241, hinge Block; 20242, hinge hole; 2025, movable column; 20251, hinge slot; 20252, hinge shaft; 2026, splice plate; 20261, positioning chute;

3. Lifting structure; 301, second rotating shaft; 302, turbine; 303, cam; 304, power rod; 3041, wheel groove; 3042, installation shaft; 3043, pulley; 3044, lock nut; 3045, first limit Ring; 3046, the first spring; 305, the positioning slide bar; 3051, the second limit ring; 3052, the second spring.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second" and "third" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

Example 1

Please refer to Fig. 1-Fig. 17, the purpose of this embodiment is to provide an anti-rolling nursing bed with an adjustable bed surface, including a bed body 1, a heave mechanism 2 and a lifting structure arranged on the bed body 1 3;

The undulating mechanism 2 includes at least the first rotating shaft 201, the center of the first rotating shaft 201 is coaxially connected with the worm rod 204, the worm rod 204 is located directly below the crossbeam 1011, the crossbeam 1011 provides a certain safety protection for the worm rod 204, and at the same time The crossbeam 1011 has the same size as the splicing plate 2026. The first rotating shaft 201 is coaxially connected with a number of first undulating parts 202 and second undulating parts 203 on both sides of the worm rod 204. The first undulating part 202 includes at least a first rotating wheel 2021. And the second rotating wheel 2022, the first rotating wheel 2021 and the second rotating wheel 2022 are symmetrically connected by the eccentric shaft 2023 provided at the eccentric place, the eccentric shaft 2023 is hinged with a connecting rod 2024, and one end of the connecting rod 2024 is hinged with a movable column 2025, The top of the movable column 2025 is fixedly connected with a splicing plate 2026, and the upper surface of the splicing plate 2026 is provided with a positioning chute 20261 near the center of the edges of the front and rear ends, and one end of the first rotating shaft 201 is fixedly connected with a rotary handle 2011;

When the undulating mechanism 2 of this embodiment is in use, the rotating handle 2011 is rotated, and the first rotating shaft 201 rotates with the rotation of the rotating handle 2011. When the first rotating shaft 201 rotates, the first undulating member 202 and the second undulating member 203 With the rotation of the first rotating shaft 201, the up-and-down reciprocating linear motion is performed, and when the eccentric shaft 2023 on the first undulating member 202 is at the bottom in the initial state, the splicing plate 2026 on the first undulating member 202 shrinks downward. The eccentric shaft 2023 on the two undulating parts 203 is rotating to the top of the first rotating wheel 2021, the splicing plate 2026 on the second undulating part 203 is in a jacked up state, and when the first undulating part 202 and the second undulating part 203 When the eccentric shaft 2023 rotates to the same level, the first undulating member 202 and the second undulating member 203 are in a horizontal state, that is, with the selection of the first rotating shaft 201, the first undulating member 202 and the second undulating member 203 are aligned along the second through hole. 1024 drives the splicing plate 2026 to do reciprocating motion alternately up and down, and the bed surface is formed by splicing several splicing plates 2026, which realizes the ups and downs adjustment of the bed surface.

The lifting structure 3 includes at least a second rotating shaft 301. The center of the second rotating shaft 301 is fixed and coaxially connected with a turbine 302. The turbine 302 is located directly below the beam 1011. The front and rear ends of the turbine 302 are coaxially connected with a cam 303. The cam 303 The top is rollingly connected with a power rod 304, and the bottom of the power rod 304 is provided with a wheel groove 3041, and the center of the side wall surface of the wheel groove 3041 is fixedly connected with a mounting shaft 3042, and a pulley 3043 is fixedly installed on the mounting shaft 3042, and the pulley 3043 passes through a lock nut 3044 is fixedly installed on the installation shaft 3042, which facilitates disassembly of the pulley 3043. The side wall surface of the power rod 304 is located at the top edge of the wheel groove 3041 and is fixedly connected with a first stop ring 3045. The power rod 304 is nested and connected with a first spring. 3046, one end of the first spring 3046 is fixedly connected to the upper surface of the first limiting ring 3045;

When the lifting structure 3 of this embodiment is in use, the worm 204 rotates with the rotation of the first rotating shaft 201, and the turbine 302 meshed with the worm 204 rotates synchronously, thereby realizing the synchronization between the second rotating shaft 301 and the first rotating shaft 201 Rotate, when the second rotating shaft 301 rotates, it drives the cams 303 at both ends to rotate synchronously, and the pulley 3043 attached to the cam 303 rolls along with the path of the cam 303, and then drives the power rod 304 to reciprocate up and down, so that when the bed surface rises and falls, , the power bar 304 drives the guardrail 103 to realize synchronous undulation. During the process of rising the bed surface, the synchronously rising guardrail 103 can effectively prevent the patient from falling from the nursing bed due to the insufficient height of the guardrail 103 during the rising process of the bed surface. problems, thereby ensuring the safety of patients.

Wherein, the bed body 1 includes at least a bed frame 101, the center of the bed frame 101 is fixedly connected with a crossbeam 1011, the upper surface of the bed frame 101 is located on the left and right sides of the crossbeam 1011 and symmetrically provided with hollow undulating areas 1012, and the lower surface of the bed frame 101 is close to the front and rear sides. The center of the side edge is fixedly connected with a support tube 1021, the left and right sides of the support tube 1021 are fixedly connected with a positioning tube 1022, the bottom of the bed frame 101 is fixedly connected with a support plate 102, and the upper surface of the bed frame 101 and the lower surface of the support plate 102 are supported by The first through hole 1023 opened at the center of the surface of the cylinder 1021 communicates. The bed frame 101 and the support plate 102 are fixedly connected through the support cylinder 1021. The support cylinder 1021 is the same as the positioning cylinder 1022. The first through hole 1023 is inserted and fixed with a guardrail 103. The left and right ends of the guardrail 103 are all fixedly connected with the positioning slide bar 305 at the bottom position. Further, the positioning slide bar 305 is plugged and fixed with the first through hole 1023 on the positioning cylinder 1022. stability, the side wall of the positioning slide bar 305 is fixedly connected with a second limiting ring 3051 near the bottom edge, and the upper surface of the second limiting ring 3051 is fixedly connected with a second spring 3052 .

In addition, a number of second through holes 1024 are opened at the center of the upper surface of the support plate 102, and the lower surface of the second through holes 1024 is fixedly connected to the mounting plate 1027 between the two second through holes 1024, and the side wall surface of the mounting plate 1027 is provided with The second shaft hole 10271, the tail plate 1025 and the top plate 1026 are fixedly connected to the edges of the left and right ends of the lower surface of the support plate 102, the tail plate 1025 and the top plate 1026 are provided with the first shaft hole 10261 aligned with the second shaft hole 10271, The lower surface of the support plate 102 is fixedly connected with a load-bearing block 1028 near the front and rear center edges, and the third shaft hole 10281 is opened on the side wall surface of the load-bearing block 1028, and the four corners of the lower surface of the bed frame 101 are fixedly connected with support legs 104, and the support legs 104 The support bars 105 are fixedly connected between them. Further, the support plate 102 is the same size as the bed frame 101, the support legs 104 penetrate the support plate 102 and are fixedly connected to the lower surface of the bed frame 101, and the support plate 102 is fixedly connected with the support legs 104. The structural stability between the bed frame 101 and the supporting board 102 is ensured.

In addition, the first undulating piece 202 and the second undulating piece 203 are alternately fixed on the first rotating shaft 201, the movement paths of the first undulating piece 202 and the second undulating piece 203 are opposite, when the second undulating piece 203 moves to the top , the first undulating piece 202 is located at the bottom, the first undulating piece 202 and the second undulating piece 203 move up and down crosswise, further, the first undulating piece 202 and the second undulating piece 203 are alternately fixed on the first rotating shaft 201, realizing As the first rotating shaft 201 rotates, the tracks of the first undulating member 202 and the second undulating member 203 reciprocate in a wave-like shape.

Specifically, the upper and lower ends of the connecting rod 2024 are fixedly connected with the hinge block 20241, the hinge hole 20242 is opened at the center of the side wall surface of the hinge block 20241, and the U-shaped hinge groove 20251 is opened on the lower surface of the movable column 2025, and the hinge groove 20251 is fixed on the inner wall. A hinged shaft 20252 is connected, and the hinged connection between the eccentric shaft 2023 and the movable column 2025 is realized through the connecting rod 2024 .

Further, the connecting rod 2024 is hinged with the hinged shaft 20252 through the hinged block 20241, the connecting rod 2024 is hinged with the eccentric shaft 2023 through the hinged block 20241, the eccentric shaft 2023 and the movable column 2025 form a crankshaft connecting rod structure through the connecting rod 2024, and the movable column 2025 follows The up and down reciprocating movement is realized with the rotation of the first rotating shaft 201 .

Furthermore, one end of the first rotating shaft 201 is coaxially fixedly installed in the first shaft hole 10261 on the tail plate 1025, and the other end of the first rotating shaft 201 is fixedly installed in the first shaft hole 10261 on the top plate 1026 through a bearing. A rotating shaft 201 is fixedly connected to several mounting plates 1027 through bearings, and provides support for the first rotating shaft 201 through several mounting plates 1027 to ensure the overall stability of the heave mechanism 2 .

Wherein, the second rotating shaft 301 is fixedly connected to the two third shaft holes 10281 through bearings, the second rotating shaft 301 is meshed with the worm 204 through the worm wheel 302, and the second rotating shaft 301 and the worm wheel 302 are meshed and driven through the worm 204 and the worm wheel 302, Synchronous rotation is realized, so that the guardrail 103 rises and falls with the lifting of the splicing plate 2026, which ensures the safety of the patient during the upgrading process.

In addition, the undulating mechanism 2 is slidingly connected with the second through hole 1024 through the movable column 2025, and several splicing plates 2026 are evenly laid in the hollow undulating area 1012. The sliding block 1013 is clamped and matched to ensure the stability of the splicing plate 2026 when it rises and falls.

Specifically, one end of the power rod 304 is fixedly connected to the center of the lower surface of the guardrail 103, the guardrail 103 is plugged and fixed with the support cylinder 1021 through the power rod 304, one end of the first spring 3046 is fixedly connected to the lower surface of the support plate 102, and the length of the positioning slide bar 305 is fixed. Same as the power rod 304, one end of the second spring 3052 is fixedly connected to the lower surface of the support plate 102, and through the first spring 3046 and the second spring 3052, when the guardrail 103 moves up and down with the cam 303, the return of the spring can The elastic force makes the guardrail 103 have sufficient force to move downward, preventing the guardrail 103 from being stuck when moving upward.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and those described in the above-mentioned embodiments and description are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. An anti-rolling nursing bed with an adjustable bed surface, characterized in that it includes a bed body (1), a heave mechanism (2) and a lifting structure (3) arranged on the bed body (1); The heave mechanism (2) includes at least a first rotating shaft (201), the center of the first rotating shaft (201) is coaxially connected with a worm rod (204), and the first rotating shaft (201) is located on the Several first undulating parts (202) and second undulating parts (203) are coaxially connected to both sides of the rod (204), and the first undulating parts (202) include at least a first rotating wheel (2021) and a second rotating wheel wheel (2022), the first rotating wheel (2021) and the second rotating wheel (2022) are symmetrically connected by an eccentric shaft (2023) set at an eccentric place, and a connecting rod ( 2024), one end of the connecting rod (2024) is hinged with a movable column (2025), and the top of the movable column (2025) is fixedly connected with a splicing plate (2026), and the upper surface of the splicing plate (2026) is close to the front and rear two Positioning chute (20261) is provided at the center of the end edge, and one end of the first rotating shaft (201) is fixedly connected with a rotary handle (2011); The lifting structure (3) includes at least a second rotating shaft (301), the center of the second rotating shaft (301) is fixed and coaxially connected with a turbine (302), and the front and rear ends of the turbine (302) are coaxially connected There is a cam (303), the top of the cam (303) is rollingly connected with a power rod (304), the bottom of the power rod (304) is provided with a wheel groove (3041), and the side wall surface of the wheel groove (3041) An installation shaft (3042) is fixedly connected at the center, and a pulley (3043) is fixedly installed on the installation shaft (3042), and the side wall surface of the power rod (304) is fixedly connected at the top edge of the wheel groove (3041) There is a first limit ring (3045), a first spring (3046) is nested and connected to the power rod (304), and one end of the first spring (3046) is connected to the first limit ring (3045) Surface fixed connection; The bed body (1) includes at least a bed frame (101), a beam (1011) is fixedly connected to the center of the bed frame (101), and the upper surface of the bed frame (101) is located around the beam (1011) There are hollow undulating areas (1012) symmetrically arranged on both sides, and the support tube (1021) is fixedly connected to the lower surface of the bed frame (101) near the center of the front and rear edges, and the left and right sides of the support tube (1021) are fixedly connected There is a positioning tube (1022), the bottom of the bed frame (101) is fixedly connected with a support plate (102), and the upper surface of the bed frame (101) and the lower surface of the support plate (102) pass through the support tube ( 1021) The first through hole (1023) opened at the center of the surface communicates, the support cylinder (1021) is the same as the positioning cylinder (1022), and the first through hole (1023) is inserted and fixed with a guardrail (103 ), the left and right ends of the guardrail (103) are fixedly connected with a positioning slide bar (305) at the bottom, and the side wall of the positioning slide bar (305) is fixedly connected with a second limit ring (3051 ), the upper surface of the second limiting ring (3051) is fixedly connected with a second spring (3052); A number of second through holes (1024) are opened at the center of the upper surface of the support plate (102), and the lower surface of the second through holes (1024) is fixedly connected between the two second through holes (1024). The mounting plate (1027), the second shaft hole (10271) is opened on the side wall surface of the mounting plate (1027), and the tail plate (1025) and the top plate are fixedly connected to the edges of the left and right ends of the lower surface of the support plate (102) (1026), the first shaft hole (10261) aligned with the second shaft hole (10271) is opened on the tail plate (1025) and the top plate (1026), and the support plate (102) under A load-bearing block (1028) is fixedly connected to the surface close to the front and rear central edges, and a third shaft hole (10281) is opened on the side wall surface of the load-bearing block (1028), and the four corner edges of the lower surface of the bed frame (101) are fixedly connected There are supporting legs (104), and the supporting legs (104) are fixedly connected by supporting cross bars (105); The first undulating elements (202) and the second undulating elements (203) are alternately fixed on the first rotating shaft (201), and the first undulating elements (202) and the second undulating elements (203) ) movement path is opposite; When in use, the worm (204) rotates with the rotation of the first rotating shaft (201), and the turbine (302) meshed with the worm (204) rotates synchronously, thereby realizing the second rotating shaft (301) and the first rotating shaft (201) ), when the second rotating shaft (301) rotates, it drives the cams (303) at both ends to rotate synchronously, and the pulley (3043) attached to the cam (303) rolls along the path of the cam (303), thereby driving the power lever ( 304) reciprocate up and down, so that when the bed surface rises and falls, the power rod (304) drives the guardrail (103) to realize synchronous rise and fall. 2. The anti-rolling nursing bed with adjustable bed surface according to claim 1, characterized in that: the upper and lower ends of the connecting rod (2024) are fixedly connected with hinged blocks (20241), and the hinged blocks ( 20241) A hinge hole (20242) is opened at the center of the side wall surface, a hinge groove (20251) is opened on the lower surface of the movable column (2025), and a hinge shaft (20252) is fixedly connected to the inner wall of the hinge groove (20251). 3. The anti-rolling nursing bed with adjustable bed surface according to claim 2, characterized in that: the connecting rod (2024) is hinged to the hinge shaft (20252) through the hinge block (20241), The connecting rod (2024) is hinged to the eccentric shaft (2023) through the hinge block (20241). 4. The anti-rolling nursing bed with an adjustable bed surface according to claim 1, characterized in that: one end of the first rotating shaft (201) is coaxially fixed and installed on the tail plate (1025). the first shaft hole (10261), the other end of the first rotating shaft (201) is fixedly installed in the first shaft hole (10261) on the top plate (1026) through a bearing, and the first rotating shaft ( 201) is fixedly connected to several mounting plates (1027) through bearings. 5. The anti-rolling nursing bed with adjustable bed surface according to claim 1, characterized in that: the second rotating shaft (301) is fixedly connected to the two third shaft holes (10281) through bearings, The second rotating shaft (301) is engaged with the worm (204) through the turbine (302). 6. The anti-rolling nursing bed with adjustable bed surface undulation according to claim 1, characterized in that: the undulating mechanism (2) passes through the movable column (2025) and the second through hole (1024) Sliding connection, several splicing plates (2026) are evenly laid in the hollow undulating area (1012), and the positioning chute (20261) is adapted to the positioning slider (1013). 7. The anti-rolling nursing bed with adjustable bed surface undulation according to claim 1, characterized in that: one end of the power rod (304) is fixedly connected to the center of the lower surface of the guardrail (103), and the guardrail (103) is plugged and fixed with the support cylinder (1021) through the power rod (304), one end of the first spring (3046) is fixedly connected with the lower surface of the support plate (102), and the positioning slide bar (305) has the same length as the power rod (304), and one end of the second spring (3052) is fixedly connected to the lower surface of the support plate (102).

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