A semi-recumbent bedboard side turning structure

Abstract

The application belongs to the field of medical sickbeds, and particularly relates to a semi-recumbent bedboard side turning structure, which comprises a bed frame, three-section leg plate frames and three-section back plate frames are distributed on the bed frame along the length direction; the three-section leg plate frames are divided into leg plate edge frames, leg plate middle frames and leg plate edge frames from left to right, and are installed on the bed frame through a side turning driving mechanism; the three-section back plate frames are divided into back plate edge frames, back plate middle frames and back plate edge frames from left to right, and are installed on a back frame support frame through a side turning driving mechanism, the back frame support frame is installed on the bed frame through a back turning driving mechanism; the inner side of the back plate edge frame is provided with a supporting plate, one end of the supporting plate is hinged to the back plate edge frame, and the other end is provided with a guide wheel, and the leg plate edge frame is provided with a sliding groove which is in sliding cooperation with the guide wheel. The application discloses a system medical sickbed which can be side turned in the semi-recumbent state, and well makes up for the defects of the prior art.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of medical sickbeds, and particularly relates to a semi-recumbent bedboard side turning structure. BACKGROUND

[0002] A medical sickbed, also known as a medical bed or a medical treatment bed, is an essential facility in a hospital ward. At present, there are various medical sickbeds on the market, the back bedboards of which can be automatically lifted, automatically extended, automatically turned, and automatically semi-recumbent. For example, Chinese Patent Application CN106798615A-A Turnover Bed, CN109363852A-A Turnover Bed, CN110433044A-A Safe Decompression Medical Care Bed, CN113425528A-A Multi-angle Adjusting Multifunctional Medical Care Bed, etc. Some have automatic lifting and automatic extension functions, some have automatic side turning functions, some have automatic semi-recumbent functions, and some can simultaneously have local automatic side turning and automatic semi-recumbent functions. However, there is no medical sickbed backboard structure that can automatically turn in a semi-recumbent state. SUMMARY

[0003] The purpose of the present application is to provide a semi-recumbent bedboard side turning structure. The present application discloses a system medical sickbed that can be side turned in a semi-recumbent state, which well makes up for the deficiencies of the prior art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] A semi-recumbent bedboard side turning structure, comprising a bed frame 100, wherein three-section leg plate frames 200 and three-section back plate frames 300 are distributed along the length direction on the bed frame 100.

[0006] The three-section leg plate frames 200 are divided into leg plate edge frames 202, leg plate middle frames 201, and leg plate edge frames 202 from left to right, and are installed on the bed frame 100 through a side turning driving mechanism 600.

[0007] The three-section back plate frames 300 are divided into back plate edge frames 302, back plate middle frames 301, and back plate edge frames 302 from left to right, and are installed on a back frame support 500 through the side turning driving mechanism 600, wherein the back frame support 500 is installed on the bed frame 100 through a back turning driving mechanism 700.

[0008] Characterized in that:

[0009] An inner side of the back plate edge frame 302 is provided with a supporting plate 304, one end of the supporting plate 304 is hinged to the back plate edge frame 302, the other end is provided with a guide wheel 305, and the leg plate edge frame 202 is provided with a sliding groove in sliding cooperation with the guide wheel 305.

[0010] Further, the supporting plate 304 is in an arc shape concave downward.

[0011] Further, the inner side of the leg plate middle frame 201 and the back plate middle frame 301 is respectively provided with a leg plate superimposed plate 203 and a back plate superimposed plate 303.

[0012] Further, the inner side of the leg plate edge frame 202 and the back plate edge frame 302 is respectively provided with a leg plate superimposed plate 203 and a back plate superimposed plate 303.

[0013] Further, the side turning driving mechanism 600 comprises a support seat 601 fixedly installed in the middle of the end of the base frame, the top of the support seat 601 is provided with a side turning rotating beam 602, the middle of the side turning rotating beam 602 is rotationally connected with the support seat 601, and the side turning rotating beam 602 is installed with a middle frame; the two sides of the support seat 601 are symmetrically provided with a connecting beam 604, one end of the connecting beam 604 is hingedly connected with the support seat 601, the other end is hingedly connected with a triangular connecting plate 603, the triangular connecting plate 603 is also hingedly connected with the corresponding end of the side turning rotating beam 602, and the triangular connecting plate 603 is fixedly installed with an edge frame.

[0014] The side turning driving mechanism 600 further comprises a connecting shaft 605 and a side turning electric cylinder 609, the connecting shaft 605 is installed with a transmission plate one 606 and a transmission plate two 607, the middle of the transmission plate one 606 is connected with the connecting shaft 605, one end of the transmission plate one 606 is hingedly connected with the base frame, the other end is hingedly connected with one end of the side turning electric cylinder 609, and the other end of the side turning electric cylinder 609 is hingedly connected with the base frame; one end of the transmission plate two 607 is fixedly connected with the connecting shaft 605, and the other end is hingedly connected with one end of a swing arm connecting rod 611, the other end of the swing arm connecting rod 611 is hingedly connected with a transmission plate three 608, and the transmission plate three 608 is fixed at one end of the side turning rotating beam 602.

[0015] Among them, the middle frame refers to the leg plate middle frame 201 or the back plate middle frame 301, the edge frame refers to the leg plate edge frame 202 or the back plate edge frame 302, and the base frame refers to the bed frame 100 or the back frame support frame 500.

[0016] Further, a fine adjustment mechanism is arranged on the side turning driving mechanism 600 located at one end of the three-section leg plate frame 200, comprising: an adjustment connecting plate 102 and an adjustment hinged member 103, the adjustment connecting plate 102 is fixedly installed on the bed frame 100, and the adjustment hinged member 103 is hingedly connected with the side turning electric cylinder 609 of the corresponding side of the side turning driving mechanism 600; the adjustment hinged member 103 is fixedly provided with an adjustment bolt 104, and the adjustment bolt 104 is fixed on the adjustment connecting plate 102 through at least two adjustment nuts 105.

[0017] Further, the back-flip driving mechanism 700 comprises a back-flip electric cylinder 701, a first back-flip connecting rod 703 and a second back-flip connecting rod 704, both ends of the back-flip electric cylinder 701 are hinged with the bed frame 100 and the back frame support frame 500 respectively; the inner side of the back frame support frame 500 is provided with a double-hole ear plate 705, the upper ends of the first back-flip connecting rod 703 and the second back-flip connecting rod 704 are hinged with the double-hole ear plate 705 respectively, and the lower ends of the first back-flip connecting rod 703 and the second back-flip connecting rod 704 are hinged with the bed frame 100.

[0018] Further, the back-flip driving mechanism 700 further comprises two back-flip gas springs 702, the two back-flip gas springs 702 are distributed on both sides of the back-flip electric cylinder 701, both ends of the back-flip gas spring 702 are hinged with the bed frame 100 and the back frame support frame 500 respectively, and the back-flip gas spring 702 is synchronous with the back-flip electric cylinder 701.

[0019] Further, the leg plate middle frame 201, the leg plate edge frame 202, the back plate middle frame 301 and the back plate edge frame 302 are all provided with a bed plate 400.

[0020] Compared with the prior art, the beneficial effects of the present application are as follows: through the arrangement of the side-flip driving mechanism and the back-flip driving mechanism, the side-flip and semi-recumbent functions of the medical bed are realized, and the leg plate frame and the back plate frame are not fixed at the docking place but adopt the sliding drawer type structure, which well realizes the function of synchronous side-flip in the semi-recumbent state and well makes up for the deficiencies of the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic view of the semi-recumbent bed plate side-flip structure when lying in the embodiment.

[0022] Figure 2 is a disassembly schematic view of the semi-recumbent bed plate side-flip structure when lying in the embodiment.

[0023] Figure 3 is a schematic view of the three-section back plate frame in the embodiment.

[0024] Figure 4 is a disassembly schematic view of the three-section back plate frame in the embodiment.

[0025] Figure 5 is a schematic view of the side-flip driving mechanism at the three-section leg plate frame in the embodiment.

[0026] Figure 6 is Figure 5 is a disassembly schematic view of the adjustment hinge member in the embodiment.

[0027] Figure 7 is a schematic view of the semi-recumbent bed plate side-flip structure when in the semi-recumbent position in the embodiment.

[0028] Figure 8 is a perspective view of the three-section backboard in the semi-recumbent position in the embodiment.

[0029] Figure 9 is a side view of the three-section backboard in the semi-recumbent position in the embodiment.

[0030] Figure 10 is a side view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment.

[0031] Figure 11 is a side view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment. Figure 10 is an end view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment.

[0032] Figure 12 is a side view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment.

[0033] Figure 13 is an end view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment. Figure 12 is a side view of the legboard frame and backboard frame combination in the high position in the embodiment.

[0034] Figure 14 is a side view of the legboard frame and backboard frame combination in the low position in the embodiment. Figure 12 is a side view of the legboard frame and backboard frame combination in the low position in the embodiment.

[0035] Figure 15 is a side view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment. Figure 12 is a side view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment.

[0036] Figure 16 is a side view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment. Figure 12 is a side view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment.

[0037] Figure 17 is a side view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment. Figure 12 is a side view of the semi-recumbent bedboard side-turn structure in the semi-recumbent position in the embodiment.

[0038] In the figure: 100, bed frame; 101, support; 102, adjustment connecting plate; 103, adjustment hinge member; 104, adjustment bolt; 105, adjustment nut;

[0039] 200, three-section legboard frame; 201, legboard middle frame; 202, legboard frame; 203, legboard superimposed plate;

[0040] 300, three-section backboard frame; 301, backboard middle frame; 302, backboard frame; 303, backboard superimposed plate; 304, supporting plate; 305, guide wheel;

[0041] 400, bedboard;

[0042] 500, back frame support frame;

[0043] 600, side turning driving mechanism; 601, support seat; 602, side turning rotating beam; 603, triangular connecting plate; 604, connecting beam; 605, connecting shaft; 606, transmission plate one; 607, transmission plate two; 608, transmission plate three; 609, side turning electric cylinder; 610, side turning gas spring; 611, swing arm connecting rod;

[0044] 700, back turning driving mechanism; 701, back turning electric cylinder; 702, back turning gas spring; 703, first back turning connecting rod; 704, second back turning connecting rod; 705, double-hole ear plate. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] A medical sickbed comprises a walking base that can walk, a bed frame 100 on the walking mechanism, and a lifting mechanism between the bed frame 100 and the walking base to realize the lifting function.

[0047] As shown in Figures 1-17 , through the design of a semi-recumbent bed plate side turning structure, the function of synchronous side turning in a semi-recumbent state can be realized. The specific implementation is as follows:

[0048] As shown in Figure 1 , 7 , 10, the bed frame 100 is provided with a three-section leg plate frame 200 and a three-section back plate frame 300 in the length direction, and the three-section back plate frame 300 can be raised upward to realize the semi-recumbent position under the action of the back turning driving mechanism 700.

[0049] As shown in Figure 2 , 3As shown in Figures 8 and 9, the back-flipping drive mechanism 700 includes a back-flipping electric cylinder 701, a first back-flipping connecting rod 703, and a second back-flipping connecting rod 704. The two ends of the back-flipping electric cylinder 701 are respectively hinged to the bed frame 100 and the back frame support frame 500. The inner side of the hinged back frame support frame 500 is provided with a double-hole ear plate 705. The upper ends of the first back-flipping connecting rod 703 and the second back-flipping connecting rod 704 are respectively hinged to the double-hole ear plate 705, and the lower ends of the first back-flipping connecting rod 703 and the second back-flipping connecting rod 704 are hinged to the bed frame 100. It also includes two back-tilting gas springs 702, which are distributed on both sides of the back-tilting electric cylinder 701. The two ends of the back-tilting gas springs 702 are respectively hinged to the bed frame 100 and the back frame support frame 500. The back-tilting gas springs 702 are synchronized with the back-tilting electric cylinder 701. The back-tilting gas springs 702 assist the multi-power source side-tilting drive of the back-tilting electric cylinder 701, making the entire side-tilting process more stable and the support more stable after side-tilting.

[0050] like Figure 2 As shown, the bed frame 100 has a support member 101 at one end near the back frame support frame 500, which is used to provide support when the back frame support frame 500 is lying flat.

[0051] like Figure 9 As shown, when a semi-reclining position is required, the back-flipping gas spring 702 assists the back-flipping electric cylinder 701 in jointly pushing the back frame support frame 500 to flip upward around the second back-flipping connecting rod 704. The first back-flipping connecting rod 703 also rotates accordingly, cooperating with the second back-flipping connecting rod 704 to achieve a certain angle upward flipping of the back frame support frame 500 and fix it in a semi-reclining position.

[0052] like Figure 1 As shown, the three-section leg frame 200 is divided into a leg frame edge 202, a leg middle frame 201, and a leg frame edge 202 on the left, middle, and right. The three-section back panel frame 300 is also divided into a back panel edge 302, a back panel middle frame 301, and a back panel edge 302 on the left, middle, and right. A bed board 400 is provided on each of the leg middle frame 201, leg frame edge 202, back panel middle frame 301, and back panel edge 302.

[0053] like Figure 3 , 4 As shown, the three-section leg frame 200 is mounted on the bed frame 100 via a side-flipping drive mechanism 600.

[0054] like Figure 1 As shown, the three-section back panel frame 300 is mounted on the back frame support frame 500 via the side-tilting drive mechanism 600.

[0055] like Figure 10 , 11As shown, the side turning driving mechanism 600 includes a support seat 601 fixedly installed in the middle of the end of the base frame, the top of the support seat 601 is provided with a side turning rotating beam 602, the middle of the side turning rotating beam 602 is rotationally connected with the support seat 601, and a middle frame is installed on the side turning rotating beam 602; the support seat 601 is symmetrically provided with a connecting beam 604 on both sides, one end of the connecting beam 604 is hingedly connected with the support seat 601, the other end is hingedly connected with a triangular connecting plate 603, the triangular connecting plate 603 is also hingedly connected with the corresponding end of the side turning rotating beam 602, and the triangular connecting plate 603 is fixedly installed with a side frame.

[0056] The side turning driving mechanism 600 further includes a connecting shaft 605 and a side turning electric cylinder 609, the connecting shaft 605 is installed with a transmission plate one 606 and a transmission plate two 607, the middle of the transmission plate one 606 is connected with the connecting shaft 605, one end of the transmission plate one 606 is hingedly connected with the base frame, the other end is hingedly connected with one end of the side turning electric cylinder 609, the other end of the side turning electric cylinder 609 is hingedly connected with the base frame; one end of the transmission plate two 607 is fixedly connected with the connecting shaft 605, the other end is hingedly connected with one end of a swing arm connecting rod 611, the other end of the swing arm connecting rod 611 is hingedly connected with a transmission plate three 608, and the transmission plate three 608 is fixedly installed at one end of the side turning rotating beam 602.

[0057] According to the position of the side turning driving mechanism 600, the above-mentioned middle frame refers to the leg plate middle frame 201 or the back plate middle frame 301 according to the situation, the side frame refers to the leg plate side frame 202 or the back plate side frame 302 according to the situation, and the base frame refers to the bed frame 100 or the back frame support frame 500 according to the situation.

[0058] The side turning driving mechanism 600 further includes a side turning gas spring 610, both ends of the side turning gas spring 610 are hingedly connected with the base frame and the transmission plate one 606 respectively, the side turning gas spring 610 is arranged synchronously with the side turning electric cylinder 609, and the action is the same as that of the back turning gas spring 702.

[0059] As shown in Figure 3 , 4 Since the three-section leg plate frame 200 is installed on the bed frame 100 through the side turning driving mechanism 600, and the three-section back plate frame 300 is installed on the back frame support frame 500 through the side turning driving mechanism 600, and the back frame support frame 500 is installed on the bed frame 100 through the back turning driving mechanism 700, it is impossible to be completely symmetrical, and it is inevitable to produce disharmony when acting simultaneously, therefore, the fine adjustment mechanism is designed in the scheme to eliminate the disharmony difference generated by the back and leg mechanisms during product manufacturing or operation.

[0060] As shown in Figure 5 , 6As shown, the fine adjustment mechanism is arranged on the side-tilting driving mechanism 600 at one end of the three-section leg plate frame 200, which comprises an adjustment connecting plate 102 fixedly installed on the bed frame 100 and an adjustment hinged member 103 hinged to the side-tilting electric cylinder 609 and the tilting gas spring 610 (lower end) of the corresponding side-tilting driving mechanism 600. An adjustment bolt 104 is fixedly arranged on the adjustment hinged member 103 and is fixed on the adjustment connecting plate 102 by at least two adjustment nuts 105.

[0061] During adjustment, the adjustment hinged member 103 is translated inward and outward by adjusting the two adjustment nuts 105, so as to adjust the positions of the side-tilting electric cylinder 609 and the tilting gas spring 610, and realize the angle adjustment of the three-section leg plate frame 200 and eliminate the uncoordinated difference between the two side-tilting driving mechanisms 600.

[0062] As shown in Figure 10 , 11 When side-tilting is needed (taking the side-tilting of the three-section back plate frame 300 as an example), the tilting gas spring 610 assists the side-tilting electric cylinder 609 to push or pull the transmission plate one 606 forward or backward, drives the transmission plate two 607 to rotate, drives the swing arm connecting rod 611 to rotate, thereby lifting or pulling down one end of the side-tilting rotating beam 602, the side-tilting rotating beam 602 rotates, drives the back plate middle frame 301 to side-tilt, and then lifts the back plate side frame 302 on one side through the cooperation of the connecting beam 604 and the triangular connecting plate 603, so as to realize the side-tilting of the three-section back plate frame 300. The three-section leg plate frame 200 is synchronized, so as to realize the side-tilting of the whole bed.

[0063] As shown in Figures 12-17 When the semi-recumbent position and the side-tilting are performed simultaneously, the connection between the three-section leg plate frame 200 and the three-section back plate frame 300 needs to be open type and cannot be a fixed structure. The specific design is as follows:

[0064] As shown in Figures 12-15 The inner side of the back plate side frame 302 is provided with a supporting plate 304, one end of which is hinged to the back plate side frame 302, and the other end is provided with a guide wheel 305. The leg plate side frame 202 is provided with a sliding groove in sliding cooperation with the guide wheel 305.

[0065] As shown in Figure 15 The supporting plate 304 is designed to be concave and arc-shaped, so as to cooperate with the motion track of the side frame.

[0066] As shown in Figure 12 The inner sides of the leg plate middle frame 201 and the back plate middle frame 301 are respectively provided with a leg plate superposition plate 203 and a back plate superposition plate 303. The inner sides of the leg plate side frame 202 and the back plate side frame 302 are respectively provided with a leg plate superposition plate 203 and a back plate superposition plate 303. They play a role in strengthening support.

[0067] As Figure 9 shown, when the side turning driving mechanism 600 and the back turning driving mechanism 700 are synchronized when the side turning is needed and the semi-recumbent position and the side turning, the relative position of the leg plate middle frame 201 and the back plate middle frame 301 is slightly inclined (as Figure 11 shown), and under the cooperation of the leg plate superimposed plate 203 and the back plate superimposed plate 303, the middle position can still form a complete support surface for supporting the human body; the upper leg plate frame 202 will be separated from the back plate frame 302 by a relatively large distance, the supporting plate 304 is withdrawn in the leg plate frame 202, and the human body is always supported by the supporting plate 304; the lower leg plate frame 202 will be separated from the back plate frame 302 by a relatively small distance, and the cooperation of the leg plate superimposed plate 203 and the back plate superimposed plate 303 can compensate for the support to the human body. In summary, whether in the semi-recumbent position or in the side turning, the three-section leg plate frame 200 and the three-section back plate frame 300 will not be affected by each other and cannot be turned, and a complete support will be formed for the human body.

[0068] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A semi-recumbent bed board side turning structure, comprising a bed frame (100), a three-section leg plate frame (200) and a three-section back plate frame (300) are distributed on the bed frame (100) along the length direction; The three-section leg plate frame (200) is divided into a leg plate edge frame (202), a leg plate middle frame (201) and a leg plate edge frame (202) from left to right, and is installed on the bed frame (100) through a side turning driving mechanism (600); The three-section back plate frame (300) is divided into a back plate edge frame (302), a back plate middle frame (301) and a back plate edge frame (302) from left to right, and is installed on a back frame support frame (500) through a side turning driving mechanism (600), and the back frame support frame (500) is installed on the bed frame (100) through a back turning driving mechanism (700); Characterized in that: An inner side of the back plate edge frame (302) is provided with a supporting plate (304), one end of the supporting plate (304) is hinged to the back plate edge frame (302), and the other end is provided with a guide wheel (305), and the leg plate edge frame (202) is provided with a sliding groove in sliding cooperation with the guide wheel (305).

2. A semi-recumbent bedboard roll-over structure according to claim 1, characterized in that: The supporting plate (304) is in a concave arc shape.

3. A semi-recumbent bedboard roll-over structure according to claim 1, characterized in that: Inner sides of the leg plate middle frame (201) and the back plate middle frame (301) are respectively provided with a leg plate superposition plate (203) and a back plate superposition plate (303).

4. The semi-recumbent bedboard roll-over structure according to claim 1, characterized in that: Inner sides of the leg plate edge frame (202) and the back plate edge frame (302) are respectively provided with a leg plate superposition plate (203) and a back plate superposition plate (303).

5. A semi-recumbent bedboard roll-over structure according to claim 1, characterized in that: The side turning driving mechanism (600) comprises a support seat (601) fixedly installed in the middle of the end of the base frame, a side turning rotating beam (602) is arranged on the top of the support seat (601), the middle of the side turning rotating beam (602) is rotationally connected with the support seat (601), and a middle frame is installed on the side turning rotating beam (602); connection beams (604) are symmetrically arranged on both sides of the support seat (601), one end of each connection beam (604) is hinged to the support seat (601), the other end of each connection beam (604) is hinged to a triangular connecting plate (603), the triangular connecting plate (603) is further hinged to the corresponding end of the side turning rotating beam (602), and an edge frame is fixedly installed on the triangular connecting plate (603); The side turning driving mechanism (600) further comprises a connecting shaft (605) and a side turning electric cylinder (609), a transmission plate one (606) and a transmission plate two (607) are installed on the connecting shaft (605), the middle of the transmission plate one (606) is connected with the connecting shaft (605), one end of the transmission plate one (606) is hinged to the base frame, the other end of the transmission plate one (606) is hinged to one end of the side turning electric cylinder (609), the other end of the side turning electric cylinder (609) is hinged to the base frame, one end of the transmission plate two (607) is fixedly connected with the connecting shaft (605), the other end of the transmission plate two (607) is hinged to one end of a swing arm connecting rod (611), the other end of the swing arm connecting rod (611) is hinged to a transmission plate three (608), and the transmission plate three (608) is fixed to one end of the side turning rotating beam (602). Wherein, the middle frame refers to the leg plate middle frame (201) or the back plate middle frame (301), the frame refers to the leg plate frame (202) or the back plate frame (302), and the base frame refers to the bed frame (100) or the back frame support frame (500).

6. A semi-recumbent bedboard roll-over structure according to claim 5, wherein: A fine adjustment mechanism is arranged on the side turning driving mechanism (600) at one end of the three-section leg plate frame (200), which comprises an adjustment connecting plate (102) and an adjustment hinged member (103), the adjustment connecting plate (102) is fixedly installed on the bed frame (100), and the adjustment hinged member (103) is hinged with the side turning electric cylinder (609) of the side turning driving mechanism (600) on the corresponding side; the adjustment hinged member (103) is fixedly provided with an adjustment bolt (104), and the adjustment bolt (104) is fixed on the adjustment connecting plate (102) through at least two adjustment nuts (105).

7. A semi-recumbent bedboard roll-over structure according to claim 1, wherein: The back turning driving mechanism (700) comprises a back turning electric cylinder (701), a first back turning connecting rod (703) and a second back turning connecting rod (704), both ends of the back turning electric cylinder (701) are hinged with the bed frame (100) and the back frame support frame (500) respectively; the inner side of the back frame support frame (500) is provided with a double-hole ear plate (705), the upper ends of the first back turning connecting rod (703) and the second back turning connecting rod (704) are hinged with the double-hole ear plate (705) respectively, and the lower ends of the first back turning connecting rod (703) and the second back turning connecting rod (704) are hinged with the bed frame (100).

8. A semi-recumbent bedboard roll-over structure according to claim 7, characterized in that: The back turning driving mechanism (700) further comprises two back turning gas springs (702), which are distributed on both sides of the back turning electric cylinder (701), both ends of the back turning gas spring (702) are hinged with the bed frame (100) and the back frame support frame (500) respectively, and the back turning gas spring (702) is synchronous with the back turning electric cylinder (701).

9. A semi-recumbent bedboard side turning structure according to any one of claims 1-8, characterized in that: The leg plate middle frame (201), the leg plate frame (202), the back plate middle frame (301) and the back plate frame (302) are all provided with a bed plate (400).

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