Bed frame and electric bed

Abstract

The utility model discloses a bed frame and an electric bed, the bed frame comprises a base, a first frame, a third frame, a fourth frame, a first rocker arm and a second rocker arm, the first rocker arm and the second rocker arm are selectively used, and the bed frame has a first using state using the first rocker arm and a second using state using the second rocker arm; in the first using state, the first rocker arm is connected between the first frame and the fourth frame, and the two ends of the first rocker arm are rotationally connected with the first frame and the fourth frame correspondingly. In the second using state, the base of the bed frame is fixedly connected to the base, the second rocker arm is connected between the base and the fourth frame, and the two ends of the second rocker arm are rotationally connected with the base and the fourth frame respectively. When in the first use state, the bed frame can be used on the bed board to meet daily use, and when in the second use state, the bed frame can be used on the bed board or the base with small occupied area as required, so that the use range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of bedding, in particular to a bed frame and an electric bed. Background Art

[0002] An electric bed is a bed that can electrically control the height and angle of the head and tail of the bed frame. The Chinese patent with publication number CN115005630A discloses a bed frame, a mattress and an electric bed. The bed frame includes a base, a first frame supporting the buttocks of a human body, a second frame supporting the back of a human body, a third frame supporting the thigh of a human body and a fourth frame supporting the calf of a human body. Each frame can change its angle relative to the base under the drive of a driving device such as a motor or an electric cylinder. Users can adjust the angle according to their needs to obtain the best use experience.

[0003] The electric bed of the above structure is usually placed on the bed board when in use. When the bed frame is laid flat, the support of the mattress tail is not considered because the height of the mattress tail is limited.

[0004] However, the bed frame is more suitable for being placed on a bed board, but not suitable for being fixed on a base with a small footprint. If a base with a small footprint is used to support the bed frame and the base is fixed to the base, once the tail of the mattress is stressed due to a person sitting on it or other reasons, the risk of damage to the bed frame is greater due to the longer force arm at the tail of the bed. In other words, the structural strength requirements of the bed frame are higher. Therefore, the use scope of the bed frame with the above structure is limited, and it can usually only be placed on a flat bed board, but cannot be placed on a base with a small footprint. Utility Model Content

[0005] The utility model aims to provide a bed frame, a mattress and an electric bed, which have a wider range of uses.

[0006] In order to achieve the above-mentioned utility model object, the utility model proposes a bed frame, comprising:

[0007] Pedestal;

[0008] A first frame, used to support the buttocks of a human body, wherein the first frame is connected to the base;

[0009] A third frame is used to support the thigh of a human body, and the third frame is movably connected to the second end of the first frame;

[0010] A fourth frame is used to support the lower leg of a human body, one end of the fourth frame is hinged to the third frame, and the other end is a suspended end; and,

[0011] A selectively used first rocker arm and a second rocker arm;

[0012] The bed frame has a first use state using the first rocker arm and a second use state using the second rocker arm;

[0013] In the first use state, the first rocker arm is connected between the first frame and the fourth frame, and two ends of the second rocker arm are rotatably connected to the first frame and the fourth frame respectively;

[0014] In the second usage state, the base of the bed frame is fixedly connected to the base, the second rocker arm is connected between the base and the fourth frame, and both ends of the first rocker arm are rotatably connected to the base and the fourth frame respectively.

[0015] Further, the fourth frame includes a first connection portion for connecting the first rocker arm and a second connection portion for connecting the second rocker arm;

[0016] The first connection portion is closer to the third frame than the second connection portion;

[0017] The second connection portion is closer to the suspended end.

[0018] Further, the first frame includes a third connection portion for connecting with the first rocker arm, and the third connection portion extends toward the side where the base is located; the base includes a fourth connection portion for connecting with the second rocker arm, and the fourth connection portion is located directly below the fourth frame;

[0019] Along the length direction of the bed frame, the first connection portion is located between the third connection portion and the fourth connection portion.

[0020] Furthermore, the bed frame also includes a rotating shaft assembly, and the first rocker arm and the first connecting part and the third connecting part, as well as the second rocker arm and the second connecting part and the fourth connecting part are all connected through the rotating shaft assembly.

[0021] Furthermore, the rotating shaft assembly includes a rotating shaft passing through the rocker arm and the connecting part and a fixing member detachably connected to the rotating shaft, and the rotating shaft is provided with a first limiting boss, and the first limiting boss and the fixing member are respectively located on both sides of the rocker arm and the connecting part.

[0022] Furthermore, the rotating shaft is provided with a threaded hole, the fixing member is connected to the threaded hole, the fixing member is provided with a second limiting boss, and the first limiting boss and the second limiting boss are respectively located on both sides of the rocker arm and the connecting portion.

[0023] Further, the first frame is movably connected to the base;

[0024] The bed frame also includes a second frame, which is used to support the back of a human body, and the second frame is movably connected to the first end of the first frame.

[0025] Furthermore, it also includes a linkage mechanism, the base, the first frame, the second frame, the third frame and the fourth frame are all movably connected to the linkage mechanism, and when one of the first frame, the second frame, the third frame and the fourth frame is driven to move, the remaining frames move under the drive of the linkage mechanism;

[0026] The bed board assembly also includes a linear drive device, which is connected between the base and the second frame; the linear drive device is controlled by electric, hydraulic, pneumatic or manual.

[0027] Furthermore, the base includes two supporting feet arranged opposite to each other, the two supporting feet are connected by a supporting bar, and the base is connected to the upper surfaces of the two supporting feet.

[0028] The utility model also provides an electric bed, comprising the bed frame as described above.

[0029] Furthermore, it also includes a base, and the base can be fixedly connected to the base.

[0030] Compared with the prior art, the utility model has the following beneficial effects: the bed frame provided by the utility model includes a first rocker arm and a second rocker arm that can be used selectively, and has a first use state using the first rocker arm and a second use state using the second rocker arm. When the bed frame is in the first use state, it can be used on a bed board to meet daily use. When the bed frame is in the second use state, the rear end of the bed frame is supported by the second rocker arm, which increases the bearing strength of the rear end of the bed frame and can effectively prevent the head of the bed from tilting up. It can be used on a bed board or a base with a small footprint as needed, and has a wider range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of an electric bed in an embodiment of the utility model;

[0032] Figure 2 yes Figure 1 A side view of the electric bed shown;

[0033] Figure 3 This is another structural schematic diagram of the electric bed in the utility model, in which the electric bed is in the second use state;

[0034] Figure 4 yes Figure 3 A side view of the electric bed shown;

[0035] Figure 5 yes Figure 2 Sectional view at AA in the middle;

[0036] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0037] Figure 7 It is a cross-sectional view of a rotating shaft assembly of an embodiment of the utility model;

[0038] Figure 8 It is a cross-sectional view of a rotating shaft assembly according to another embodiment of the utility model. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] like Figures 1 to 4 As shown, the utility model provides a bed frame 100, including a base 5, a first frame 1, a second frame 2, a third frame 3, a fourth frame 4, and also includes a first rocker arm 6 and a second rocker arm 7 that can be used selectively.

[0043] The first frame 1 is used to support the buttocks of the human body. The first frame 1 is connected to the base 5 and is located below the base 5; the second frame 2 is used to support the back of the human body. The second frame 2 is movably connected to the first end 101 of the first frame 1; the third frame 3 is used to support the thigh of the human body. The third frame 3 is movably connected to the second end 102 of the first frame 1; the fourth frame 4 is used to support the calf of the human body. One end of the fourth frame 4 is hinged to the third frame 3, and the other end is a suspended end 403.

[0044] The bed frame 100 has a first use state in which the first rocker arm 6 is used and a second use state in which the second rocker arm 7 is used.

[0045] In the first use state, Figure 1 and Figure 2 As shown, the first rocker arm 6 is connected between the first frame 1 and the fourth frame 4, and both ends of the first rocker arm 6 are rotatably connected to the first frame 1 and the fourth frame 4. When the third frame 3 and the fourth frame 4 are deformed relative to the base 5 and the first frame 1, the first rocker arm 6 will swing with the position change of the fourth frame 4, thereby limiting the angle change of the fourth frame 4 and playing a certain supporting role.

[0046] In the second use state, if Figure 3 and Figure 4 As shown, the base 5 of the bed frame 100 is fixedly connected to the base 200, the second rocker arm 7 is connected between the base 200 and the fourth frame 4, and the two ends of the second rocker arm 7 are rotatably connected to the base 200 and the fourth frame 4 respectively. Similarly, when the third frame 3 and the fourth frame 4 are deformed relative to the base 5 and the first frame 1, the second rocker arm 7 will swing with the change of the position of the fourth frame 4, thereby limiting the angle change of the fourth frame 4 and playing a certain supporting role. It can be understood that by designing the position, length and other parameters of the first rocker arm 6 and the second rocker arm 7, the deformation of the fourth frame 4 in the two states can be the same or nearly the same. Optionally, when the inclination angle of the third frame 3 is the same, the difference in the inclination angle of the fourth frame 4 in the two use states does not exceed 5°, and the height difference of the suspended end 403 does not exceed 30mm, so that the bed frame has almost the same use experience when used in different use states.

[0047] The bed frame 100 includes a first rocker arm 6 and a second rocker arm 7 for selective use, and has a first use state in which the first rocker arm 6 is used and a second use state in which the second rocker arm 7 is used. It can be understood that when the first rocker arm 6 is used, the second rocker arm 7 may not be installed; when the second rocker arm 7 is used, the first rocker arm 6 may not be installed. When the bed frame 100 is in the first use state, the base 5 can be fixed or placed on a horizontal bed board. Since the tilting range of the fourth frame 4 is limited, it can meet daily use. When the bed frame 100 is in the second use state, since the second rocker arm 7 is supported between the base 200 and the fourth frame 4, the support effect on the fourth frame 4 can be improved, so that the bed frame 100 can be reliably used on a base 200 with a smaller footprint. Generally, the length of the base 200 is less than the length of the bed frame 100. By selectively using the first rocker arm 6 and the second rocker arm 7, the bed frame 100 can be used on a bed board or a base 200 as needed, and the use range is wider.

[0048] like Figures 1 to 4 As shown, the fourth frame 4 includes a first connection portion 401 for connecting the first rocker arm 6 and a second connection portion 402 for connecting the second rocker arm 7, wherein the first connection portion 401 is closer to the third frame 3 than the second connection portion 402; the second connection portion 402 is closer to the suspended end 403 of the fourth frame 4, and it can be understood that the suspended end 403 is located at the tail of the bed frame 100. Since the second connection portion 402 is closer to the suspended end of the fourth frame 4 than the first connection portion 402, the second rocker arm 7 has a better supporting effect on the fourth frame 4, and when the bed frame 100 is installed on the base 200 for use, it can also have a good supporting effect, and even if you sit on the fourth frame 4, it will not cause damage to the bed frame 100.

[0049] The first frame 1 includes a third connection portion 501 for connecting with the first rocker arm 6, and the third connection portion 501 extends toward the side (i.e., below) where the base 5 is located, preferably extending to the bottom of the third frame 3, so that the first rocker arm 6 is located below the third frame 3. The base 200 includes a fourth connection portion 2003 for connecting with the second rocker arm 7, and the fourth connection portion 2003 is located directly below the fourth frame 4 to further improve the support strength of the second rocker arm 7 to the fourth frame 4. Along the length direction of the bed frame 100, the first connection portion 401 is located between the third connection portion 501 and the fourth connection portion 2003.

[0050] Optional, such as Figure 3 and Figure 4 As shown, the bed frame 100 also includes a transition plate 8 detachably connected to the third connecting portion 501, and the second rocker arm 7 can be selectively connected to the transition plate 8, or the transition plate 8 can be removed and connected to the third connecting portion 501, thereby adjusting the position change of the fourth frame 4 when the bed frame 100 is deformed.

[0051] like Figure 2 As shown, the bed frame also includes a rotating shaft assembly 9. The first rocker arm 6 and the first connecting part 401 and the third connecting part 501, as well as the second rocker arm 7 and the second connecting part 402 and the fourth connecting part 801 are all connected through the rotating shaft assembly 9. The rotating shaft assembly 9 forms a rotating pair at both ends of the first rocker arm 6 and the second rocker arm 7, so that the bed frame 100 can swing as the position of the fourth frame 4 changes when the bed frame 100 is deformed.

[0052] Taking the use of the rotating shaft assembly 9 to connect the first connecting portion 401 and the first rocker arm 6 as an example, in some embodiments, Figure 5 and Figure 6 As shown, the rotating shaft assembly 9 includes a rotating shaft 901 passing through the first rocker arm 6 and the first connecting portion 401 and a fixing member 902 detachably connected to the rotating shaft 901, and the rotating shaft 901 allows the first rocker arm 6 and the first connecting portion 401 to rotate relatively smoothly. The rotating shaft 901 is provided with a first limiting boss 903, and the fixing member 902 and the first limiting boss 903 are respectively located on both sides of the first rocker arm 6 and the first connecting portion 401, so that the rotating shaft 901 can be reliably retained in the first limiting boss 903 and the first rocker arm 6. Figures 5 to 7 In the illustrated embodiment, the rotating shaft 901 is provided with a threaded hole 905, the fixing member 902 is connected to the threaded hole 905, the fixing member 902 is provided with a second limiting boss 904 located outside the threaded hole 905, and the first limiting boss 903 and the second limiting boss 904 are respectively located on both sides of the first rocker arm 6 and the first connecting portion 401. In other embodiments, such as Figure 8 As shown, the rotating shaft 901 may be provided with an external thread, and the fixing member 902 may be, for example, a nut, which is threadedly connected to the outside of the rotating shaft 901 and may also define the positions of the first rocker arm 6 and the first connecting portion 401 .

[0053] In some embodiments, the first frame 1 and the base 5 are movably connected, such as Figure 1 and Figure 3 As shown, the bed frame 100 also includes a linkage mechanism 10, and the base 5, the first frame 1, the second frame 2, the third frame 3 and the fourth frame 4 are all movably connected to the linkage mechanism 10. When one of the first frame 1, the second frame 2, the third frame 3 and the fourth frame 4 is driven to move, the other frames move under the drive of the linkage mechanism 10, and the linkage between the movements of each frame is realized through the linkage mechanism 10. The specific structure of the linkage mechanism 10 can refer to the structure of the linkage mechanism in Chinese patent CN115005630A, and the entire content of the patent is incorporated herein by reference, so the specific structure and connection relationship of the linkage mechanism 10 are not repeated here. In other embodiments, the first frame 1 and the base 5 can be fixedly connected, and the third frame 3 and the fourth frame 4 are driven to move with the second frame 2 by two sets of independent driving devices.

[0054] like Figures 1 to 4 As shown, the bed frame 100 also includes a linear drive device 11, which is connected between the base 5 and the second frame 2. The linear drive device 11 is used to drive one of the first frame 2, the second frame 3 and the third frame 4 to move, and then drive the other two frames to move through the linkage mechanism 10 to achieve the change between the first use state and the second use state. In the figure, the linear drive device 11 is connected between the base 5 and the second frame 2, and drives the second frame 2 to move, thereby driving the other frames to move. The linear drive device 11 can realize telescopic movement in a linear direction; the control mode of the linear drive device 11 is electric (such as an electric push rod, an electric cylinder), hydraulic (such as a hydraulic cylinder), pneumatic (such as a cylinder) or manual (such as a manual push rod). Preferably, the linear drive device 11 is electric, and it only needs a power supply to work, which is more convenient to use and has low noise.

[0055] Since the linkage mechanism 10 is adopted, only one linear drive device 11 is needed to realize the linkage of each frame. The number of linear drive devices 11 is small, which greatly reduces the overall cost. At the same time, since a suitable position can be selected for installation, the installation is more convenient. In addition, the reduction in the number of linear drive devices 11 can also reduce the weight of the bed frame and even the entire electric bed, making it easier to carry and install.

[0056] like Figure 3 As shown, the base 200 includes two supporting legs 2001 arranged opposite to each other, the two supporting legs 2001 are connected by a supporting bar 2002, and the base 5 is connected to the upper surface of the two supporting legs 2001. The length of the base 200 is less than the length of the bed frame 100, so as to reduce the occupied area and make full use of the space under the bed frame 100.

[0057] The utility model also provides an electric bed, comprising the bed frame 100 as described above. The electric bed also includes a base 200, and the base 5 can be selectively fixedly connected to the base 200.

[0058] The above are only specific implementations of the present invention, and any improvements made based on the concept of the present invention are considered to be within the protection scope of the present invention.

Claims

1. A bed frame, characterized in that: include: Pedestal; A first frame, used to support the buttocks of a human body, wherein the first frame is connected to the base; A third frame is used to support the thigh of a human body, and the third frame is movably connected to the second end of the first frame; A fourth frame is used to support the lower leg of a human body, one end of the fourth frame is hinged to the third frame, and the other end is a suspended end; as well as, A first rocker arm and a second rocker arm for selective use; The bed frame has a first use state using the first rocker arm and a second use state using the second rocker arm; In the first use state, the first rocker arm is connected between the first frame and the fourth frame, and two ends of the first rocker arm are rotatably connected to the first frame and the fourth frame respectively; In the second usage state, the base of the bed frame is fixedly connected to the base, the second rocker arm is connected between the base and the fourth frame, and both ends of the second rocker arm are rotatably connected to the base and the fourth frame respectively.

2. The bed frame according to claim 1, characterized in that: The fourth frame includes a first connection portion for connecting the first rocker arm and a second connection portion for connecting the second rocker arm; The first connection portion is closer to the third frame than the second connection portion; The second connection portion is closer to the suspended end.

3. The bed frame according to claim 2, characterized in that: The first frame includes a third connection portion for connecting with the first rocker arm, and the third connection portion extends toward the side where the base is located; the base includes a fourth connection portion for connecting with the second rocker arm, and the fourth connection portion is located directly below the fourth frame; Along the length direction of the bed frame, the first connection portion is located between the third connection portion and the fourth connection portion.

4. The bed frame according to claim 3, characterized in that: The bed frame further comprises a rotating shaft assembly, and the first rocker arm and the first connecting part and the third connecting part, as well as the second rocker arm and the second connecting part and the fourth connecting part are all connected via the rotating shaft assembly.

5. The bed frame according to claim 4, characterized in that: The rotating shaft assembly includes a rotating shaft passing through the rocker arm and the connecting part and a fixing member detachably connected to the rotating shaft. The rotating shaft is provided with a first limiting boss. The first limiting boss and the fixing member are respectively located on both sides of the rocker arm and the connecting part.

6. The bed frame according to claim 5, characterized in that: The rotating shaft is provided with a threaded hole, the fixing member is connected to the threaded hole, the fixing member is provided with a second limiting boss, and the first limiting boss and the second limiting boss are respectively located on both sides of the rocker arm and the connecting portion.

7. The bed frame according to any one of claims 1 to 6, characterized in that: The first frame is movably connected to the base; The bed frame also includes a second frame, which is used to support the back of a human body, and the second frame is movably connected to the first end of the first frame.

8. The bed frame according to claim 7, characterized in that: It also includes a linkage mechanism, the base, the first frame, the second frame, the third frame and the fourth frame are all movably connected to the linkage mechanism, when one of the first frame, the second frame, the third frame and the fourth frame is driven to move, the remaining frames move under the drive of the linkage mechanism; The bed frame also includes a linear drive device, which is connected between the base and the second frame; the linear drive device is controlled by electric, hydraulic, pneumatic or manual.

9. The bed frame according to any one of claims 1 to 6, characterized in that: The base comprises two supporting feet which are arranged opposite to each other, the two supporting feet are connected by a supporting bar, and the base is connected to the upper surfaces of the two supporting feet.

10. An electric bed, characterized in that: Comprising a bed frame as described in any one of claims 1-9.

11. The electric bed according to claim 10, characterized in that: It also includes a base, and the base can be fixedly connected to the base.

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