Bed frame with lifting structure and nursing bed

Abstract

The utility model relates to the technical field of lifting adjustment of nursing beds, in particular to a bed frame with a lifting structure and a nursing bed, the bed frame comprises a bed frame body and a first linear telescopic assembly; the bed frame body comprises a main frame and a back frame, and the back frame is located on one side of the main frame and rotationally connected with the main frame; one end of the first linear telescopic assembly is rotationally connected with the bottom of the main frame, and the other end of the first linear telescopic assembly is rotationally connected with the bottom of the back frame. A telescopic structure of the first linear telescopic assembly is used for driving the back frame to ascend and descend, so that the back frame and the main frame form a set angle. According to the technical scheme, function switching of the bed frame can be achieved through lifting of the bed frame body, and the linear telescopic assembly achieving the lifting function is simple in structure and low in cost; the nursing bed is installed at the bottom of the main frame, the occupied space is small, and the bottom space of the nursing bed can be optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to nursing bed lifting adjustment technical field especially, a bedstead and nursing bed with lifting structure are provided. BACKGROUND

[0002] Nursing beds can provide comprehensive care and support, especially for patients who need long-term bed rest, the elderly, severely disabled people or healthy people. The design of the nursing bed aims to improve the quality of life and care efficiency of the patient through various functions.

[0003] In order to meet various application scenarios, the nursing bed needs to be switched to multiple modes, and the structure that can meet the mode switching needs to be set up. Such structure is generally set at the bottom of the bed frame.

[0004] However, with the increase of the function of the nursing bed, the structure at the bottom of the bed frame becomes more and more complex, leading to unreasonable space utilization and increased cost. Therefore, how to effectively optimize the structure at the bottom of the bed frame while meeting multiple functions is a technical problem to be solved at present. SUMMARY

[0005] To solve at least the above technical problems in the prior art, the utility model provides a bed frame and nursing bed with lifting structure.

[0006] The utility model provides a bed frame with lifting structure in one aspect, including bed frame body and first linear telescopic component, the bed frame body includes main frame and back frame, the back frame is located one side of the main frame, and is connected with the main frame rotation, one end of the first linear telescopic component is connected with the bottom of the main frame rotation, the other end of the first linear telescopic component is connected with the bottom of the back frame rotation, the first linear telescopic component is used to drive the back frame lifting, makes the back frame and the main frame form set angle.

[0007] In some embodiments, it further includes a second linear telescopic component, the bed frame body further includes leg frame, the leg frame is located the side of the main frame away from the back frame, and is connected with the main frame rotation, one end of the second linear telescopic component is connected with the bottom of the main frame rotation, the other end of the second linear telescopic component is connected with the bottom of the leg frame rotation, the second linear telescopic component is used to drive the leg frame lifting, makes the leg frame and the main frame form set angle.

[0008] In some embodiments, a third linear telescopic assembly is further included; the bed frame body further includes a lifting frame connected to the bottom of the main frame, and the third linear telescopic assembly is connected to the lifting frame and used to drive the lifting frame to telescope so as to drive the main frame to lift.

[0009] In some embodiments, the leg frame includes a first leg frame and a second leg frame, the first leg frame and the second leg frame are arranged in sequence away from the main frame, and the first leg frame is rotationally connected to the main frame, and the first leg frame and the second leg frame are rotationally connected; the telescopic structure of the second linear telescopic assembly is connected to the leg frame through a connecting rod structure; the connecting rod structure includes a connecting rod, a connecting frame and a supporting frame, one end of the connecting rod is rotationally connected to the bottom of the main frame, the other end is rotationally connected to the connecting frame, the connecting frame is fixedly arranged on the connecting rod and rotationally connected to the telescopic structure of the second linear telescopic assembly; the supporting frame is fixedly connected to the bottom of the second leg frame and used to support the second leg frame.

[0010] In some embodiments, the connecting rod structure includes at least two groups of the connecting rod and the supporting frame; two adjacent connecting rods are connected through a first synchronous rod, and multiple groups of the connecting rod and the supporting frame are used to support the leg frame.

[0011] In some embodiments, the lifting frame includes a bottom support and a cross support; the cross support includes a first cross rod and a second cross rod, the middle parts of the first cross rod and the second cross rod are rotationally connected, one end of the first cross rod is slidingly connected to the bottom of the main frame, the other end is rotationally connected to the bottom support, one end of the second cross rod is rotationally connected to the main frame, the other end is slidingly connected to the bottom support; the third linear telescopic assembly is connected to the first cross rod or the second cross rod.

[0012] In some embodiments, the cross support includes at least two groups of the first cross rod and the second cross rod; two adjacent first cross rods are connected through a second synchronous rod, and two adjacent second cross rods are connected through a third synchronous rod.

[0013] In some embodiments, the first linear telescopic assembly and the second linear telescopic assembly are respectively rotationally connected to the bottom of the main frame through a fixed seat; the fixed seat includes a connecting part and an extension part, the connecting part is fixedly connected to the bottom of the main frame, and the base of the first linear telescopic assembly or the second linear telescopic assembly is rotationally connected to the extension part.

[0014] In some embodiments, the first linear telescopic assembly, the second linear telescopic assembly and the third linear telescopic assembly include an electric push rod structure.

[0015] The utility model discloses still provide a kind of nursing bed on another aspect, including the bed frame with lifting structure described above.

[0016] The utility model provides a kind of bed frame and nursing bed with lifting structure, first linear telescopic component is located below main frame, when running, first linear telescopic component can lengthen or shorten, and first linear telescopic component will along with the rotation of telescopic structure and the rotation of main frame is generated;Telescopic structure drives back frame to rotate with the rotation connection position of back frame and main frame as axis, when the angle between back frame and main frame is 180 °, bed frame is horizontal state, when the angle between back frame and main frame is less than 180 °, bed frame is back support state.The utility model technical scheme, bed frame body can be switched by lifting the function of bed frame, linear telescopic component structure simple, low in cost of realizing lifting function;And it is installed in the bottom of main frame, the space occupied is small, can optimize the space of nursing bed bottom. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other objects, features and advantages of the present application will become easily understandable by reading the detailed description following, with reference to the attached drawings. In the drawings, several embodiments of the present application are shown by way of example and not limitation, in which:

[0018] In the drawings, identical or corresponding reference numbers indicate identical or corresponding parts.

[0019] Figure 1 The structure diagram of bed frame with lifting structure provided by the utility model embodiment is shown;

[0020] Figure 2 The front view of bed frame with lifting structure provided by the utility model embodiment is shown;

[0021] Figure 3 The structure diagram of first linear telescopic component in bed frame with lifting structure provided by the utility model embodiment is shown;

[0022] Figure 4 The use state reference diagram of first linear telescopic component with lifting structure provided by the utility model embodiment is shown;

[0023] Figure 5 The structure diagram of second linear telescopic component with lifting structure provided by the utility model embodiment is shown;

[0024] Figure 6 The use state reference diagram of second linear telescopic component with lifting structure provided by the utility model embodiment is shown Figure 1 ;

[0025] Figure 7Reference for the usage status of the second linear telescopic component with a lifting structure provided in this embodiment of the utility model Figure 2 ;

[0026] Figure 8 A schematic diagram of the structure of the third linear telescopic component with a lifting structure provided in an embodiment of this utility model.

[0027] In the picture:

[0028] 10: Bed frame body; 20: First linear telescopic assembly; 30: Second linear telescopic assembly; 40: Third linear telescopic assembly; 50: Fixing base;

[0029] 11: Main frame; 12: Back frame; 13: Leg frame; 131: First leg support; 132: Second leg support; 14: Lifting frame; 141: Bottom support; 142: Cross support; 1421: First cross bar; 1422: Second cross bar; 1423: Second synchronization bar; 1424: Third synchronization bar;

[0030] 31: Linkage structure; 311: Linkage rod; 312: Connecting frame; 313: Support frame; 314: First synchronizing rod;

[0031] 51: Connecting part; 52: Extension part. Detailed Implementation

[0032] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] This utility model provides a bed frame with a lifting structure, including a bed frame body, a first linear telescopic component, a second linear telescopic component, and a third linear telescopic component. The first linear telescopic component drives the back frame to lift and lower, realizing the back support function; the second linear telescopic component drives the leg frame to lift and lower, realizing the leg support function; and the third linear telescopic component drives the bed frame body to lift and lower, realizing the height adjustment of the bed frame body.

[0034] The following description, in conjunction with the accompanying drawings, details the components of the bed frame with a lifting structure provided in the embodiments of this utility model, the positional relationships between the components, and the connection relationships.

[0035] like Figures 1 to 8As shown, in the embodiment of the utility model, the bed frame body 10 includes main frame 11, back frame 12, leg frame 13 and lifting frame 14;The bed frame body 10 is integrally formed as a bed plate structure of a cuboid, wherein the main frame 11 is located in the middle part, the back frame 12 is arranged on one side of the main frame 11, and the leg frame 13 is arranged on the other side of the main frame 11.

[0036] For example, two parallel main support rods are arranged on both sides of the main frame 11, the two main support rods are the contour shape of the bed frame body 10, the back frame 12 corresponds to the back position of the patient, and the leg frame 13 corresponds to the leg position of the patient.

[0037] The main frame 11, the back frame 12 and the leg frame 13 include a contour frame and a plurality of parallel support bars located in the contour frame. In the embodiment of the utility model, the specific structure of the main frame 11, the back frame 12 and the leg frame 13 is not limited. The lifting frame 14 needs to meet the telescopic lifting function, and the specific structure is described below.

[0038] The main frame 11 is connected to the back frame 12 and the leg frame 13 through a rotating shaft to realize rotating connection. Alternatively, other rotatable structures can also be used. In the embodiment of the utility model, the rotating connection mode is not limited.

[0039] In the embodiment of the utility model, the back frame 12 is rotatably connected to the main frame 11, the leg frame 13 is rotatably connected to the main frame 11, the lifting frame 14 is connected to the bottom of the main frame 11, the back frame 12 cooperates with the first linear telescopic assembly 20 to realize the back lifting function, the leg frame 13 cooperates with the second linear telescopic assembly 30 to realize the leg lifting function, and the lifting frame 14 cooperates with the third linear telescopic assembly 40 to realize the height adjustment of the bed frame body 10 as a whole.

[0040] Continuing to refer to Figures 1 to 8 As shown, one end of the first linear telescopic assembly 20 is rotatably connected to the bottom of the main frame 11, for example, one end of the first linear telescopic assembly 20 is a base, the base is a housing of the driving structure of the linear telescopic assembly, and the outer wall of the housing is rotatably connected to the bottom of the main frame 11.

[0041] For example, a fixing seat 50 is arranged at the bottom of the main frame 11, the fixing seat 50 includes a connecting part 51 and an extension part 52, the connecting part 51 has a certain height, so that the first linear telescopic assembly 20 has a certain interval with the bottom of the main frame 11, and the extension part 52 has a certain angle with the connecting part 51, for example, the included angle of the two tends to 90°, when the connecting part 51 is arranged vertically downward at the bottom of the main frame 11, the extension part 52 can be parallel to the area of the main frame 11.

[0042] The other end of the first linear telescopic assembly 20 is rotationally connected with the bottom of the back frame 12, for example, the other end of the first linear telescopic assembly 20 is the end of the telescopic structure; a connecting seat, such as an ear plate structure, is arranged at the bottom of the back frame 12, and the connecting seat is rotationally connected with the end of the telescopic structure, wherein the telescopic structure and the connecting seat are connected through a rotating shaft, and the base and the bottom of the main frame 11 are connected through a rotating shaft.

[0043] In the technical scheme of the utility model, the arrangement mode of the first linear telescopic assembly 20 is not limited to this, and the telescopic structure can also be rotationally connected with the bottom of the main frame 11, and the base can be rotationally connected with the bottom of the back frame 12.

[0044] For example, the first linear telescopic assembly 20 is an electric push rod structure, and the telescopic structure is a telescopic rod of the electric push rod structure. When the telescopic structure of the first linear telescopic assembly 20 is in a retracted state, the back frame 12 and the main frame 11 do not change in angle, and the angle between them is 180°, wherein in this state, the back frame 12 can be supported by the support structure extending out of the main frame 11, or the back frame 12 can be supported by the first linear telescopic assembly 20.

[0045] With the extension of the telescopic structure, the telescopic structure exerts force on the back frame 12, and at the same time, the base and the bottom of the main frame 11 rotate relative to each other, and the angle of rotation changes with the lifting height of the back frame 12. After the back frame 12 is lifted to a certain height, that is, the back frame 12 is rotated to the required angle, the back frame 12 is kept at the current position by the first linear telescopic assembly 20 at the current angle.

[0046] For example, the action position of the telescopic structure can be at the middle position of the back frame 12, and when the force is exerted on the back frame 12, the force is applied to the middle position of the back frame 12, so that the force acting on each position of the back frame 12 tends to be uniform. Alternatively, for example, a plurality of first linear telescopic assemblies 20 can be provided, and the plurality of first linear telescopic assemblies 20 can exert force on the back frame 12 synchronously.

[0047] Continuing to refer to Figures 1 to 8 As shown in the figure, one end of the second linear telescopic assembly 30 is rotationally connected with the bottom of the main frame 11, and the other end of the second linear telescopic assembly 30 is rotationally connected with the bottom of the leg frame 13.

[0048] For example, one end of the base of the second linear telescopic assembly 30 is rotationally connected with the bottom of the main frame 11, and one end of the telescopic structure of the second linear telescopic assembly 30 is rotationally connected with the bottom of the leg frame 13. Similarly, the arrangement mode of the second linear telescopic assembly 20 is not limited to this, and the telescopic structure can also be rotationally connected with the bottom of the main frame 11, and the base can be rotationally connected with the bottom of the leg frame 13.

[0049] The leg frame 13 can be a single structure, which can have the same shape as the back frame 12, and can be connected to the back frame 12 in the same way and driven to lift in the same way. Alternatively, the leg frame 13 can have a multi-structure form, which includes a first leg frame 131 and a second leg frame 132, and the first leg frame 131 and the second leg frame 132 correspond to the thigh support and the calf support of the human body.

[0050] The first leg frame 131 and the second leg frame 132 are connected in rotation, and the first leg frame 131 and the second leg frame 132 are arranged in sequence in a direction away from the main frame 11, and the second leg frame 132 is connected to the main frame 11 in rotation. The first leg frame 131 and the second leg frame 132 are driven to lift by the second linear telescopic assembly 30, wherein the first leg frame 131 and the second leg frame 132 can be driven to be higher than the plane on which the main frame 11 is located, and the height of the calf of the patient in a lying state can be raised, or the first leg frame 131 and the second leg frame 132 can be lowered to be below the plane on which the main frame 11 is located, and the leg of the patient in a standing state can be supported.

[0051] In the embodiment of the utility model, the telescopic structure of the second linear telescopic assembly 30 is connected with the leg frame 13 through the connecting rod structure 31. The base of the second linear telescopic assembly 30 is connected with the bottom of the main frame 11 through the fixing seat 50. For example, the fixing seat 50 includes a connecting part 51 and an extension part 52. The connecting part 51 has a certain height, so that the second linear telescopic assembly 30 and the bottom of the main frame 11 have a certain interval. The extension part 52 has a certain angle with the connecting part 51, for example, the included angle of the two tends to 90 DEG. When the connecting part 51 is arranged vertically downward on the bottom of the main frame 11, the extension part 52 can be parallel to the area of the main frame 11.

[0052] The connecting rod structure 31 includes a connecting rod 311, a connecting frame 312 and a supporting frame 313. One end of the connecting rod 311 is connected to the bottom of the main frame 11 in rotation, and the other end is connected to the connecting frame 312 in rotation. The connecting frame is fixed on the connecting rod 311 and connected to the telescopic structure of the second linear telescopic assembly 30 in rotation. The supporting frame 313 is fixedly connected to the bottom of the second leg frame 132 and used for supporting the second leg frame 132. For example, the second linear telescopic assembly 30 is an electric push rod structure, the telescopic structure is a telescopic rod of the electric push rod structure, and the end of the telescopic rod is connected to the connecting frame 312 in rotation.

[0053] When the first leg support 131 and the second leg support 132 are in the horizontal state and are flush with the main frame 11, the three are in 180°, in this state, the telescopic structure is in the middle state of the extension range, that is, it has been extended by one end distance. When it is needed to raise the first leg support 131 and the second leg support 132, the telescopic structure continues to extend, so that the first leg support 131 and the second leg support 132 continue to move upwards, and after rising to the position, the telescopic structure stops extending and keeps the first leg support 131 and the second leg support 132 in the current state, which can be used for supporting the lower leg of the patient. When it is needed to lower the first leg support 131 and the second leg support 132, the telescopic structure is retracted, that is, the length is shortened, so that the first leg support 131 and the second leg support 132 continue to move downwards, and after lowering to the position, the telescopic structure stops retracting and keeps the first leg support 131 and the second leg support 132 in the current state, which can be used for supporting the leg of the patient when the patient is sitting.

[0054] During the rising or lowering of the first leg support 131 and the second leg support 132, the second leg support 132 can be raised and lowered in the horizontal state, that is, the height position of the second leg support 132 changes, but the second leg support 132 itself does not overturn. When the leg of the patient is placed on the second leg support 132, the second leg support 132 is raised and lowered in the horizontal state, and has better experience when the function is switched.

[0055] For example, the connecting rod structure 31 includes at least two groups of connecting rods 311 and supporting frames 313; two adjacent connecting rods 311 are connected through a first synchronous rod 314, and the multiple groups of connecting rods 311 and supporting frames 313 are used for bearing the leg frame 13; by arranging the multiple groups of connecting rods 311 and supporting frames 313, the first leg support 131 and the second leg support 132 can be stably supported, as shown in the figure, including two groups of connecting rods 311 and supporting frames 313.

[0056] Continuing to refer to Figures 1 to 8 In the embodiment of the utility model, the lifting frame 14 includes a bottom support 141 and a cross support 142; the cross support 142 includes a first cross rod 1421 and a second cross rod 1422, the middle parts of the first cross rod 1421 and the second cross rod 1422 are rotationally connected, one end of the first cross rod 1421 is slidingly connected with the bottom of the main frame 11, the other end is rotationally connected with the bottom support 141, one end of the second cross rod 1422 is rotationally connected with the main frame 11, the other end is slidingly connected with the bottom support 141;

[0057] For example, a sliding groove is arranged on the main frame 11 and the bottom support 141, rollers are arranged on the end parts of the first cross rod 1421 and the second cross rod 1422 connected with the sliding groove, and the end parts of the first cross rod 1421 and the second cross rod 1422 slide in the sliding groove during the lifting of the first cross rod 1421 and the second cross rod 1422.

[0058] In the embodiment of the utility model, other sliding forms can also be adopted, and the sliding connection mode is not limited.

[0059] For example, the cross support 142 comprises at least two groups of first cross rods 1421 and second cross rods 1422; adjacent first cross rods 1421 are connected through second synchronous rods 1423, and adjacent second cross rods 1422 are connected through third synchronous rods 1424. The plurality of groups of first cross rods 1421 and second cross rods 1422 have a certain support area, which can provide more stable support.

[0060] The third linear telescopic assembly 40 is connected with the first cross rod 1421 or the second cross rod 1422. For example, the third linear telescopic assembly 40 is an electric push rod structure, and the telescopic rod of the electric push rod structure is a telescopic structure. When the telescopic structure is extended, the end of the first cross rod 1421 or the second cross rod 1422 is pushed to slide, which is gradually converted from an inclined shape to a vertical shape, so that the distance between the main frame 11 and the bottom support 141 is increased, and the other cross rod is driven to move, thereby completing the lifting operation of the lifting frame 14; on the contrary, the telescopic structure is retracted, driving the first cross rod 1421 or the second cross rod 1422 to move reversely, thereby completing the lowering operation of the lifting frame 14.

[0061] For example, the third linear telescopic assembly 40 comprises an electric push rod structure, the electric push rod structure is arranged on the second synchronous rod 1423, the telescopic rod of the second synchronous rod 1423 is connected with the third synchronous rod 1424, and the third linear telescopic assembly 40 is arranged in the middle of the plurality of groups of first cross rods 1421 and second cross rods 1422.

[0062] For example, the shell of the electric push rod structure is rotationally connected with the second synchronous rod 1423, and the telescopic rod is rotationally connected with the third synchronous rod 1424, for example, the rotationally connected mode is a rotation shaft mode. For example, the shell of the electric push rod structure is connected with the second synchronous rod 1423 through the fixing seat 50. The fixing seat 50 comprises a connecting portion 51 and an extension portion 52, the connecting portion 51 has a certain height, so that the third linear telescopic assembly 40 has a certain interval with the second synchronous rod 1423, and the extension portion 52 has a certain angle with the connecting portion 51, for example, the included angle between the two is greater than 90°, when the connecting portion 51 is connected with the second synchronous rod 1423 in a horizontal manner, the extension portion 52 can adjust the installation angle of the third linear telescopic assembly 40 upward.

[0063] The utility model embodiment provides a nursing bed, including the bed frame with the lifting structure. The nursing bed has multifunctionality, when using, can satisfy bed body lifting, back lifting and leg lifting and other functions, has multifunctionality, and the driving structure required for realizing the above functions is simple, does not occupy too much space, and can reduce the production manufacturing cost and maintenance cost of the nursing bed.

[0064] The utility model provides a bed frame and nursing bed with lifting structure, first linear telescopic component 20 is located below main frame 11, when running, the telescopic structure of first linear telescopic component 20 can lengthen or shorten, and the base of first linear telescopic component 20 will along with the telescopic structure of telescopic and produce rotation with main frame 11, telescopic structure drives back frame 12 to rotate with the rotation connection position of back frame 12 and main frame 11 as the axis, when the angle between back frame 12 and main frame 11 is 180 DEG, bed frame presents horizontal state, when the angle between back frame 12 and main frame 11 is less than 180 DEG, bed frame presents back stay support state, the utility model technical scheme, bed frame body 10 can realize the function switching of bed frame through lifting, and linear telescopic component structure simple, low in cost of realizing lifting function, and it installs in the bottom of main frame 11, and the space is small, can optimize the space of nursing bed bottom.

[0065] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0066] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one feature. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0067] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A bedstead having a lifting structure, characterized by, The bed frame body (10) comprises a main frame (11) and a back frame (12), the back frame (12) is located on one side of the main frame (11) and is rotationally connected with the main frame (11); One end of the first linear telescopic assembly (20) is rotationally connected with the bottom of the main frame (11), and the other end of the first linear telescopic assembly (20) is rotationally connected with the bottom of the back frame (12); The first linear telescopic assembly (20) is used for driving the back frame (12) to lift, so that the back frame (12) forms a set angle with the main frame (11). Further comprising a second linear telescopic assembly (30); 2. The bed frame having a lifting structure according to claim 1, wherein, The bed frame body (10) further comprises a leg frame (13), the leg frame (13) is located on the side of the main frame (11) away from the back frame (12) and is rotationally connected with the main frame (11); One end of the second linear telescopic assembly (30) is rotationally connected with the bottom of the main frame (11), and the other end of the second linear telescopic assembly (30) is rotationally connected with the bottom of the leg frame (13); The second linear telescopic assembly (30) is used for driving the leg frame (13) to lift, so that the leg frame (13) forms a set angle with the main frame (11). Further comprising a third linear telescopic assembly (40); 3. The bed frame having a lifting structure according to claim 2, characterized in that, The bed frame body (10) further comprises a lifting frame (14), the lifting frame (14) is connected with the bottom of the main frame (11), the third linear telescopic assembly (40) is connected with the lifting frame (14) and is used for driving the lifting frame (14) to telescope, so as to drive the main frame (11) to lift. The leg frame (13) comprises a first leg frame (131) and a second leg frame (132), the first leg frame (131) and the second leg frame (132) are sequentially arranged in the direction away from the main frame (11), and the first leg frame (131) is rotationally connected with the main frame (11), and the first leg frame (131) and the second leg frame (132) are rotationally connected; 4. The bed frame having a lifting structure according to claim 2, wherein, The telescopic structure of the second linear telescopic assembly (30) is connected with the leg frame (13) through a connecting rod structure (31); the connecting rod structure (31) comprises a connecting rod (311), a connecting frame (312) and a supporting frame (313), one end of the connecting rod (311) is rotationally connected with the bottom of the main frame (11), the other end is rotationally connected with the connecting frame (312), the connecting frame (312) is fixedly arranged on the connecting rod (311) and is rotationally connected with the telescopic structure of the second linear telescopic assembly (30); the supporting frame (313) is fixedly connected with the bottom of the second leg frame (132) and is used for supporting the second leg frame (132). The connecting rod structure (31) comprises at least two groups of the connecting rod (311) and the supporting frame (313); 5. The bed frame having a lifting structure according to claim 4, wherein, ​ Two adjacent connecting rods (311) are connected by a first synchronous rod (314), and multiple groups of connecting rods (311) and supporting frames (313) are used to support the leg frame (13).

6. The bed frame having a lifting structure according to claim 3, wherein, The lifting frame (14) comprises a bottom support (141) and a cross support (142); The cross support (142) comprises a first cross rod (1421) and a second cross rod (1422), the middle parts of the first cross rod (1421) and the second cross rod (1422) are rotationally connected, one end of the first cross rod (1421) is slidingly connected with the bottom of the main frame (11), the other end is rotationally connected with the bottom support (141), one end of the second cross rod (1422) is rotationally connected with the main frame (11), the other end is slidingly connected with the bottom support (141); The third linear telescopic assembly (40) is connected with the first cross rod (1421) or the second cross rod (1422).

7. The bed frame with a lifting structure according to claim 6, characterized in that, The cross support (142) comprises at least two groups of first cross rods (1421) and second cross rods (1422); Adjacent first cross rods (1421) are connected by a second synchronous rod (1423), and adjacent second cross rods (1422) are connected by a third synchronous rod (1424).

8. The bed frame having a lifting structure according to claim 2, wherein, The first linear telescopic assembly (20) and the second linear telescopic assembly (30) are respectively rotationally connected with the bottom of the main frame (11) through a fixed seat (50); The fixed seat (50) comprises a connecting part (51) and an extension part (52), the connecting part (51) is fixedly connected with the bottom of the main frame (11), and the first linear telescopic assembly (20) or the second linear telescopic assembly (30) is rotationally connected with the extension part (52).

9. The bed frame having a lifting structure according to claim 3, wherein, The first linear telescopic assembly (20), the second linear telescopic assembly (30) and the third linear telescopic assembly (40) comprise an electric push rod structure.

10. A care bed, characterized in that A bed frame comprising a lifting structure as claimed in any one of claims 1 to 9. A bed frame comprising a lifting structure as claimed in any one of claims 1 to 9.

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