Angle-adjustable supporting structure and electric bed

Abstract

The utility model provides an angle-adjustable support structure and electric bed wherein the angle-adjustable support structure comprises: a chassis, the front part and the rear part of the chassis are respectively provided with a front support link mechanism and a rear support link mechanism, one end of the front support link mechanism is hinged with the front part of the chassis, and the other end of the front support link mechanism is hinged with the rear part of the chassis; one end of the rear support connecting rod mechanism is hinged with the rear part of the underframe; the supporting frame is arranged above the bottom frame, and the other end of the front supporting connecting rod mechanism and the other end of the rear supporting connecting rod mechanism are hinged to the front portion and the rear portion of the supporting frame respectively; the front supporting driving piece and the rear supporting driving piece are arranged on the supporting frame and connected with the front supporting connecting rod mechanism and the rear supporting connecting rod mechanism; according to the electric bed, the problems that the posture of the electric bed can be adjusted only by adjusting the backrest and the leg rest in the prior art, and higher requirements of consumers on comfort and use scenes cannot be met are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of smart home, in particular to an angle-adjustable supporting structure and an electric bed. Background Art

[0002] In the fields of medical treatment, rehabilitation and home care, there is a growing demand for electric beds, which can adjust the angle of the bed surface according to the different needs of users to provide a more comfortable use experience and more effective treatment support.

[0003] However, existing electric beds can only provide users with a better experience by adjusting the angles of the backrest and the legrest. The angle control of this structure is single and is increasingly unable to meet consumers' needs for comfort and more usage scenarios. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned above, the technical problem to be solved by the present invention is to provide an angle-adjustable support structure and an electric bed, so as to solve the problem that the electric bed in the prior art can only adjust the posture by adjusting the backrest and the leg rest, and cannot meet consumers' higher demands for comfort and usage scenarios.

[0005] In order to solve the above technical problems, the utility model provides an angle-adjustable support structure, comprising:

[0006] A chassis, wherein a front supporting link mechanism and a rear supporting link mechanism are respectively arranged on the front and rear parts of the chassis, one end of the front supporting link mechanism is hinged to the front part of the chassis, and one end of the rear supporting link mechanism is hinged to the rear part of the chassis;

[0007] A support frame, the support frame is arranged above the base frame, and the other ends of the front support link mechanism and the rear support link mechanism are respectively hinged to the front and rear of the support frame;

[0008] A front support driving member and a rear support driving member, wherein the front support driving member and the rear support driving member are arranged on the support frame and are connected to the front support link mechanism and the rear support link mechanism, wherein the front support driving member and the rear support driving member drive the front support link mechanism and the rear support link mechanism to move, thereby driving the support frame to flip along the hinge with the front support link mechanism and the rear support link mechanism, presenting a variety of angles including a horizontal angle.

[0009] As a more preferred embodiment, the front support linkage mechanism includes two front first links and a front support beam connecting the two front first links, the two ends of the two front first links are respectively hinged to the base frame and the support frame, and the front support drive is connected to the front support beam.

[0010] As a more preferred embodiment, the rear support linkage mechanism includes two rear first links and a rear support beam connecting the two rear first links, the two ends of the two rear first links are respectively hinged to the base frame and the support frame, and the rear support drive is connected to the rear support beam.

[0011] As a more preferred embodiment, the rear supporting link mechanism further includes two rear second links, one end of the rear second link is hinged to the base frame, and the other end is hinged to the middle of the first link to bear a portion of the radial load of the first link.

[0012] As a more preferred embodiment, the front support driving member and the rear support driving member both adopt electric push rods, the fixed ends of the front support driving member and the rear support driving member are respectively hinged to the front end and the rear end of the support frame, and the telescopic ends of the front support driving member and the rear support driving member are respectively hinged to the front support connecting rod mechanism and the rear support connecting rod mechanism.

[0013] In order to solve the above problems, the utility model also provides an electric bed, comprising:

[0014] The above-mentioned angle-adjustable support structure;

[0015] A bed frame, the bed frame is mounted on the support frame, and when the support frame flips, the bed frame is driven to flip together, and a front flip driving member is provided on the bed frame, and the front flip driving member is provided at the front part of the bed frame;

[0016] A bed board, wherein the bed board is arranged on the bed frame, and the bed board comprises a back board and a front seat board which are laid on the front of the bed frame and are hinged to each other, and the front seat board is arranged on the bed frame, and the front flip driving member is hinged to the back board, and the front flip driving member drives the back board to flip along the hinged end with the front seat board, driving the back board to present a variety of states including a horizontal state.

[0017] As a more preferred embodiment, the bed frame is further provided with a rear flip driving member, and the rear flip driving member is arranged at the rear part of the bed frame.

[0018] As a more preferred embodiment, the bed board also includes a rear seat board and a leg board which are laid on the rear part of the bed frame and hinged to each other. The rear flip driving member is hinged to the leg board, and the rear flip driving member drives the leg board to flip along the hinged end with the rear seat board, driving the leg board to present a variety of states including a horizontal state.

[0019] As a more preferred embodiment, the front flip drive member and the rear flip drive member adopt electric push rods, the fixed ends of the front flip drive member and the rear flip drive member are respectively hinged to the front and rear of the bed frame, and the telescopic ends of the front flip drive member and the rear flip drive member are respectively hinged to the back board and the leg board.

[0020] As a more preferred embodiment, the leg board includes a thigh board and a calf board which are hinged to each other, wherein one end of the thigh board is hinged to the rear seat board, and the other end of the thigh board is hinged to one end of the calf board, the rear flip drive member is connected to the calf board, and the bed frame also includes a connecting rod, one end of the connecting rod is hinged to the rear part of the bed frame, and the other end is hinged to the calf board.

[0021] As described above, the angle-adjustable support structure and the electric bed of the utility model have the following beneficial effects: when the angle-adjustable support structure of the utility model is in use, the front support driving member and the rear support driving member drive the front support link mechanism and the rear support link mechanism to move, driving the support frame to flip along the hinge with the front support link mechanism and the rear support link mechanism, presenting a variety of angles including a horizontal angle;

[0022] The electric bed of the utility model is arranged on a support structure with adjustable angle. Firstly, the support structure plays the role of lifting the bed frame to replace the bed legs; secondly, when the support frame flips, it drives the bed frame to flip together, and the support frame enables the bed frame to present a variety of angles including a horizontal angle. On this basis, the bed frame itself can also drive the back plate to flip along the hinged end with the front seat plate through the front flip driving member, driving the back plate to present a variety of states including a horizontal state. The combination of these two action mechanisms greatly enriches the postures that the electric bed can provide, not only providing a more comfortable experience, but also providing a richer use scenario.

[0023] The angle-adjustable support structure and the electric bed of the utility model, through the angle-adjustable support structure and the flippable bed board mounted on the support structure, the mutual combination of the two action mechanisms greatly enriches the postures that the electric bed can provide, not only providing a more comfortable experience, but also providing richer usage scenarios, solving the problem that the electric beds in the prior art can only adjust the posture by adjusting the backrest and the leg rest, and cannot meet consumers' higher demands for comfort and usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is an exploded schematic diagram of the angle-adjustable support structure and the electric bed of the utility model;

[0025] Figure 2Shown is a schematic structural diagram of an angle-adjustable support structure and an electric bed of the utility model.

[0026] Component number description

[0027] 1 Support structure

[0028] 11. Base

[0029] 111 Bottom side bar

[0030] 112 Bottom front beam

[0031] 113 Bottom rear beam

[0032] 114 Bottom Link

[0033] 12 Support frame

[0034] 121 Support side bar

[0035] 122 Support front beam

[0036] 123 Supporting rear beam

[0037] 124 Support link

[0038] 13 Front support linkage

[0039] 131 Front first link

[0040] 132 Front support beam

[0041] 14 Rear support linkage

[0042] 141 Rear first link

[0043] 142 rear support beam

[0044] 143 Rear second link

[0045] 15 Front support drive

[0046] 16 Rear support drive

[0047] 2 Bed frame

[0048] 21 Front bracket

[0049] 211 Front side bar

[0050] 212 front crossbeam

[0051] 213 Front Link

[0052] 22 Rear bracket

[0053] 221 Rear side bar

[0054] 222 rear crossbeam

[0055] 223 Connecting rod

[0056] 23 Front flip drive

[0057] 24 Rear flip drive

[0058] 3 bed boards

[0059] 31 Back Panel

[0060] 32 Front seat panel

[0061] 33 Rear seat panel

[0062] 34 Leg Board

[0063] 341 Thigh Board

[0064] 342 Calf Board DETAILED DESCRIPTION

[0065] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0066] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terms used here are only for describing specific embodiments and are not intended to limit this application. Spatial related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., can be used in the text to facilitate the description of the relationship between an element or feature shown in the figure and another element or feature.

[0067] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "hold" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless there is an indication to the contrary in the context. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions or operations is inherently mutually exclusive in some way.

[0069] like Figure 1 as well as Figure 2 As shown, the utility model provides an angle-adjustable support structure 1, comprising:

[0070] A base frame 11, wherein a front supporting link mechanism 13 and a rear supporting link mechanism 14 are respectively provided at the front and rear portions of the base frame 11, one end of the front supporting link mechanism 13 is hinged to the front portion of the base frame 11, and one end of the rear supporting link mechanism 14 is hinged to the rear portion of the base frame 11;

[0071] A support frame 12, wherein the support frame 12 is disposed above the base frame 11, and the other ends of the front support link mechanism 13 and the rear support link mechanism 14 are respectively hinged to the front and rear of the support frame 12;

[0072] The front support driving member 15 and the rear support driving member 16 are arranged on the support frame 12 and are connected to the front support link mechanism 13 and the rear support link mechanism 14. The front support driving member 15 and the rear support driving member 16 drive the front support link mechanism 13 and the rear support link mechanism 14 to move, and drive the support frame 12 to flip along the hinge with the front support link mechanism 13 and the rear support link mechanism 14, presenting a variety of angles including horizontal angles.

[0073] In order to better introduce the angle-adjustable support structure 1 of the present invention, it is now explained in combination with the following specific applications: When the angle-adjustable support structure 1 of the present invention is in use, the front support driving member 15 and the rear support driving member 16 drive the front support link mechanism 13 and the rear support link mechanism 14 to move, driving the support frame 12 to flip along the hinge with the front support link mechanism 13 and the rear support link mechanism 14, presenting a variety of angles including horizontal angles.

[0074] In this embodiment, if Figure 1 As shown, the base frame 11 and the support frame 12 are both rectangular frame structures, wherein the base frame 11 includes two bottom side rods 111, a bottom front beam 112, a bottom rear beam 113 and a bottom connecting rod 114, the two bottom side rods 111, the bottom front beam 112 and the bottom rear beam 113 form a rectangular frame structure, and the bottom connecting rod 114 is arranged in the middle of the rectangular frame structure and is connected to the two bottom side rods 111; the support frame 12 includes two supporting side rods 121, a supporting front beam 122, a supporting rear beam 123 and a supporting connecting rod 124, the two supporting side rods 121, the supporting front beam 122 and the supporting rear beam 123 form a rectangular frame structure, and the supporting connecting rod 124 is arranged in the middle of the rectangular frame structure and is connected to the two supporting side rods 121.

[0075] In this embodiment, if Figure 1 As shown, the front support linkage mechanism 13 includes two front first links 131 and a front support beam 132 connecting the two front first links 131, the two ends of the two front first links 131 are respectively hinged to the base frame 11 and the support frame 12, and the front support drive member 15 is connected to the front support beam 132; further, in this embodiment, one end of the two front first links 131 is respectively hinged to the two bottom side rods 111, and the other end is respectively hinged to the two support side rods 121.

[0076] In this embodiment, if Figure 1 As shown, the rear support link mechanism 14 includes two rear first links 141 and a rear support beam 142 connecting the two rear first links 141, the two ends of the two rear first links 141 are respectively hinged to the base frame 11 and the support frame 12, and the rear support drive member 16 is connected to the rear support beam 142; further, in this embodiment, one end of the two rear first links 141 is respectively hinged to the two bottom side rods 111, and the other end is respectively hinged to the two support side rods 121.

[0077] In this embodiment, if Figure 1 As shown, the rear support link mechanism 14 also includes two rear second links 143, one end of the rear second link 143 is hinged to the bottom side rod 111, and the other end is hinged to the middle of the first link to bear a portion of the radial load of the first link. The first link, the second link and the bottom side rod 111 form a triangular structure, and the triangle is stable, thereby providing better support.

[0078] In this embodiment, if Figure 1As shown, the front support driving member 15 and the rear support driving member 16 both adopt electric push rods, and the fixed ends of the front support driving member 15 and the rear support driving member 16 are respectively hinged to the front end and the rear end of the support frame 12, and the telescopic ends of the front support driving member 15 and the rear support driving member 16 are respectively hinged to the front support connecting rod mechanism 13 and the rear support connecting rod mechanism 14; further, in this embodiment, the fixed end of the front support driving member 15 is hinged to the support front beam 122, the fixed end of the rear support driving member 16 is hinged to the support front beam 122, and the telescopic ends of the front support driving member 15 and the rear support driving member 16 are respectively hinged to the middle parts of the front support beam 132 and the rear support beam 142.

[0079] In order to solve the above problems, the utility model also provides an electric bed, comprising:

[0080] The above-mentioned angle-adjustable support structure 1;

[0081] A bed frame 2, wherein the bed frame 2 is mounted on the support frame 12, and when the support frame 12 turns over, the bed frame 2 is driven to turn over together, and a front turning driving member 23 is provided on the bed frame 2, and the front turning driving member 23 is provided at the front part of the bed frame 2;

[0082] The bed board 3 is arranged on the bed frame 2, and the bed board 3 includes a back board 31 and a front seat board 32 which are laid on the front part of the bed frame 2 and hinged to each other, and the front seat board 32 is arranged on the bed frame 2, and the front flip driving member 23 is hinged to the back board 31, and the front flip driving member 23 drives the back board 31 to flip along the hinged end with the front seat board 32, driving the back board 31 to present a variety of states including a horizontal state.

[0083] In order to better introduce the electric bed of the utility model, it is now explained in combination with the following specific applications: the electric bed of the utility model is arranged on an angle-adjustable support structure 1. First, the support structure 1 plays a role in lifting the bed frame 2 to replace the bed legs; secondly, when the support frame 12 is turned over, it drives the bed frame 2 to turn over together. The support frame 12 enables the bed frame 2 to present a variety of angles including a horizontal angle. On this basis, the bed frame 2 itself can also drive the back plate 31 to turn over along the hinged end with the front seat plate 32 through the front turning drive member 23, driving the back plate 31 to present a variety of states including a horizontal state. The two action mechanisms are The mutual combination greatly enriches the postures that the electric bed can provide, which not only provides a more comfortable experience, but also provides more abundant usage scenarios; it can be seen that the angle-adjustable support structure and the electric bed of the utility model, through the angle-adjustable support structure 1 and the flippable bed board 3 mounted on the support structure 1, the mutual combination of the two action mechanisms, greatly enriches the postures that the electric bed can provide, which not only provides a more comfortable experience, but also provides more abundant usage scenarios, and solves the problem that the electric bed in the prior art can only adjust the posture by adjusting the backrest and the legrest, and cannot meet consumers' higher demands for comfort and usage scenarios.

[0084] In this embodiment, if Figure 1 As shown, the bed frame 2 includes a front support 21 and a rear support 22, wherein the front support 21 is a frame structure formed by two front side rods 211 and a front cross beam 212, and the rear support 22 is a frame structure formed by two rear side rods 221 and a rear cross beam 222, and one ends of the two front side rods 211 and the rear side rods 221 are hinged to each other; a front connecting rod 213 is also provided on the front support 21, and the front connecting rod 213 is provided in the middle of the front support 21 and the two ends are respectively connected to the two front side rods 211.

[0085] In this embodiment, if Figure 1 As shown, the bed frame 2 is also provided with a rear flip driving member 24 , and the rear flip driving member 24 is arranged at the rear of the bed frame 2 .

[0086] In this embodiment, if Figure 1As shown, the bed board 3 also includes a rear seat board 33 and a leg board 34 which are laid on the rear part of the bed frame 2 and are hinged to each other. The rear flip driving member 24 is hinged to the leg board 34. The rear flip driving member 24 drives the leg board 34 to flip along the hinged end with the rear seat board 33, driving the leg board 34 to present a variety of states including a horizontal state; further, in this embodiment, when the electric bed of this embodiment is stored, the front bracket 21 and the rear bracket 22 can be folded in half along their mutual hinges, and at the same time, the back plate 31 and the front seat board 32 laid on the front bracket 21, and the rear seat board 33 and the leg board 34 laid on the rear bracket 22 are folded in half together with the front bracket 21 and the rear bracket 22, thereby reducing the storage space and reducing the logistics cost.

[0087] In this embodiment, if Figure 1 As shown, the front flip driving member 23 and the rear flip driving member 24 adopt electric push rods, and the fixed ends of the front flip driving member 23 and the rear flip driving member 24 are respectively hinged to the front and rear parts of the bed frame 2, and the telescopic ends of the front flip driving member 23 and the rear flip driving member 24 are respectively hinged to the back plate 31 and the leg plate 34. Specifically, the fixed ends of the front flip driving member 23 and the rear flip driving member 24 are respectively hinged to the front connecting rod 213 and the middle part of the rear cross beam 222.

[0088] In this embodiment, if Figure 1 As shown, the leg board 34 includes a thigh board 341 and a calf board 342 which are hinged to each other, wherein one end of the thigh board 341 is hinged to the rear seat board 33, and the other end of the thigh board 341 is hinged to one end of the calf board 342, the rear flip drive member 24 is connected to the calf board 342, and the bed frame 2 also includes a connecting rod 223, one end of the connecting rod 223 is hinged to the rear part of the bed frame 2, and the other end is hinged to the calf board 342; further, in this embodiment, the bed frame 2 includes two connecting rods 223, one end of the two connecting rods 223 is respectively hinged to the two rear side rods 221, and the other end is respectively hinged to the calf board 342.

[0089] In summary, the angle-adjustable support structure and electric bed of the utility model have the following advantages:

[0090] 1. Angle adjustability: The support structure 1 allows the support frame 12 to flip along the hinge point to a variety of angles, including a horizontal angle.

[0091] 2. Structural stability: The rectangular frame structure of the base frame 11 and the support frame 12 provides stability and is easy to implement.

[0092] 3. Driving efficiency: The front support driving member 15 and the rear support driving member 16 use electric push rods to achieve efficient and precise driving.

[0093] 4. Enhanced flexibility: The rear support link mechanism 14 includes a rear second link 143, forming a triangular structure to enhance radial load bearing capacity.

[0094] 5. Electric bed versatility: Electric beds provide a wide range of posture adjustments through angle-adjustable support structures 1 and flip drive components.

[0095] 6. Improved comfort: Electric beds can be adjusted to the most comfortable angle according to user needs to improve the user experience.

[0096] 7. Rich usage scenarios: Electric beds are suitable for a variety of usage scenarios to meet the needs of different consumers.

[0097] 8. Convenient storage: The bed frame 2 design allows it to be folded in half for storage, reducing space occupancy and logistics costs.

[0098] 9. Driving component integration: The flip driving component is integrated into the bed frame 2 to achieve multi-angle adjustment of the backboard 31 and the leg board 34.

[0099] 10. Leg support optimization: The leg panel 34 is designed to include a thigh panel 341 and a calf panel 342, providing more natural leg support.

[0100] 11. Application of the connecting rod 223: The connecting rod 223 of the bed frame 2 provides an additional support point to enhance the stability of the overall structure.

[0101] The angle-adjustable support structure 1 of the present invention realizes multi-angle adjustment of the support frame 12 through its innovative design, and is suitable for various application scenarios such as electric beds. The rectangular frame structure of the base frame 11 and the support frame 12 provides the necessary stability and strength. The use of the electric push rod enables the support drive member to efficiently and accurately drive the connecting rod mechanism to realize the flipping of the support frame 12. In addition, the triangular structure design of the rear support connecting rod mechanism 14 enhances the overall stability and load-bearing capacity.

[0102] The design of the electric bed provides more possibilities for posture adjustment by combining an angle-adjustable support structure 1 and a flip drive, which not only improves the user's comfort experience, but also expands the diversity of usage scenarios. The folding design when stored takes into account space occupancy and logistics costs, making the product more practical and economical. Overall, the support structure 1 and electric bed design of this patent, through its innovative structure and drive method, solve the problems of limited adjustment range and single usage scenario of electric beds in the prior art, and meet consumers' higher requirements for comfort and flexibility of use. Therefore, the utility model effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0103] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An angle-adjustable support structure (1), characterized in that: include: A base frame (11), wherein a front supporting link mechanism (13) and a rear supporting link mechanism (14) are respectively arranged on the front and rear parts of the base frame (11), one end of the front supporting link mechanism (13) is hinged to the front part of the base frame (11), and one end of the rear supporting link mechanism (14) is hinged to the rear part of the base frame (11); A support frame (12), wherein the support frame (12) is arranged above the base frame (11), and the other ends of the front support link mechanism (13) and the rear support link mechanism (14) are respectively hinged to the front and rear of the support frame (12); A front support driving member (15) and a rear support driving member (16), wherein the front support driving member (15) and the rear support driving member (16) are arranged on the support frame (12) and are connected to the front support link mechanism (13) and the rear support link mechanism (14); the front support driving member (15) and the rear support driving member (16) drive the front support link mechanism (13) and the rear support link mechanism (14) to move, thereby driving the support frame (12) to flip along the hinge with the front support link mechanism (13) and the rear support link mechanism (14), presenting a variety of angles including a horizontal angle.

2. The angle-adjustable support structure (1) according to claim 1, characterized in that: The front support link mechanism (13) comprises two front first links (131) and a front support beam (132) connecting the two front first links (131); the two ends of the two front first links (131) are respectively hinged to the base frame (11) and the support frame (12); and the front support driving member (15) is connected to the front support beam (132).

3. The angle-adjustable support structure (1) according to claim 1, characterized in that: The rear support link mechanism (14) comprises two rear first links (141) and a rear support beam (142) connecting the two rear first links (141); the two ends of the two rear first links (141) are respectively hinged to the base frame (11) and the support frame (12); and the rear support driving member (16) is connected to the rear support beam (142).

4. The angle-adjustable support structure (1) according to claim 3, characterized in that: The rear supporting link mechanism (14) further comprises two rear second links (143), one end of the rear second link (143) being hinged to the base frame (11), and the other end being hinged to the middle of the first link, so as to bear a radial load of a part of the first link.

5. The angle-adjustable support structure (1) according to claim 4, characterized in that: The front support driving member (15) and the rear support driving member (16) both adopt electric push rods, the fixed ends of the front support driving member (15) and the rear support driving member (16) are respectively hinged to the front end and the rear end of the support frame (12), and the telescopic ends of the front support driving member (15) and the rear support driving member (16) are respectively hinged to the front support connecting rod mechanism (13) and the rear support connecting rod mechanism (14).

6. An electric bed, characterized in that: include: The angle-adjustable support structure (1) according to any one of claims 1 to 5; A bed frame (2), the bed frame (2) being mounted on the support frame (12), and when the support frame (12) turns over, the bed frame (2) is driven to turn over together, and a front turning driving member (23) is provided on the bed frame (2), and the front turning driving member (23) is provided at the front part of the bed frame (2); A bed board (3), the bed board (3) being arranged on the bed frame (2), the bed board (3) comprising a back board (31) and a front seat board (32) which are laid on the front of the bed frame (2) and are hinged to each other, the front seat board (32) being arranged on the bed frame (2), the front flipping driving member (23) being hinged to the back board (31), the front flipping driving member (23) driving the back board (31) to flip along the hinged end with the front seat board (32), thereby driving the back board (31) to present a plurality of states including a horizontal state.

7. The electric bed according to claim 6, characterized in that: The bed frame (2) is also provided with a rear flipping driving member (24), and the rear flipping driving member (24) is arranged at the rear part of the bed frame (2).

8. The electric bed according to claim 7, characterized in that: The bed board (3) also includes a rear seat board (33) and a leg board (34) which are laid on the rear part of the bed frame (2) and are hinged to each other. The rear flip driving member (24) is hinged to the leg board (34). The rear flip driving member (24) drives the leg board (34) to flip along the hinged end with the rear seat board (33), driving the leg board (34) to present a variety of states including a horizontal state.

9. The electric bed according to claim 8, characterized in that: The front flip driving member (23) and the rear flip driving member (24) are electric push rods, the fixed ends of the front flip driving member (23) and the rear flip driving member (24) are respectively hinged to the front and rear parts of the bed frame (2), and the telescopic ends of the front flip driving member (23) and the rear flip driving member (24) are respectively hinged to the back plate (31) and the leg plate (34).

10. The electric bed according to claim 8, characterized in that: The leg board (34) includes a thigh board (341) and a calf board (342) which are hinged to each other, wherein one end of the thigh board (341) is hinged to the rear seat board (33), and the other end of the thigh board (341) is hinged to one end of the calf board (342), and the rear flip driving member (24) is connected to the calf board (342). The bed frame (2) also includes a connecting rod (223), one end of the connecting rod (223) is hinged to the rear part of the bed frame (2), and the other end is hinged to the calf board (342).

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