Adjustable electric bed

Abstract

The invention belongs to the technical field of furniture, and discloses an adjustable electric bed which comprises a main supporting frame, an electric bed body and an electric bed body. The main support frame can support the bottom of the movable back plate; the movable rotating shaft mechanism comprises a guide rail, a rotating shaft body and an adjusting assembly, the guide rail is fixedly arranged on the main supporting frame and extends in the bed length direction, the rotating shaft body is slidably arranged on the guide rail, the adjusting assembly is installed on the movable back plate, and the output end of the adjusting assembly is connected with the rotating shaft body; the movable back plate can turn over around the rotating shaft body relative to the main supporting frame. According to the adjustable electric bed provided by the invention, the position of the overturning axis of the movable back plate can be adjusted so as to adapt to the use requirements of different users, the extrusion feeling when the movable back plate is overturned is reduced, the supporting height of the movable back plate can be flexibly adjusted, and the comfort is improved.

Description

Technical Field

[0001] The invention relates to the technical field of furniture, in particular to an adjustable electric bed. Background Art

[0002] Adjustable electric bed, also known as smart bed or adjustable bed, uses motor drive to realize electric control of the height of the head or foot of the bed board, and can freely adjust the curvature of the bed board.

[0003] The bending areas of existing adjustable electric beds are fixed. Due to differences in user body shapes, the back lengths and waist positions of users are not the same. The bending areas of adjustable electric beds cannot adapt to users of different body shapes. Therefore, in the process of flipping up the back, some users will have an obvious sense of squeezing, which is not comfortable.

[0004] Therefore, an adjustable electric bed is urgently needed to solve the above-mentioned technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide an adjustable electric bed, which can adjust the flip axis position of the movable backboard to meet the usage needs of different users, reduce the squeezing feeling when the movable backboard is flipped up, and flexibly adjust the support height of the movable backboard to improve comfort.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] An adjustable electric bed is provided, comprising:

[0008] Main support frame;

[0009] A movable backboard, wherein the main support frame is capable of supporting the bottom of the movable backboard;

[0010] The movable pivot mechanism includes a guide rail, a pivot body and an adjustment component. The guide rail is fixedly arranged on the main support frame and extends along the length direction of the bed. The pivot body is slidably arranged on the guide rail. The adjustment component is installed on the movable backboard. The output end of the adjustment component is connected to the pivot body. The adjustment component can drive the pivot body to slide along the guide rail, and the movable backboard can flip around the pivot body relative to the main support frame.

[0011] Specifically, the movable backboard of the adjustable electric bed is connected to the rotating shaft body through the adjustment component, and the movable backboard can rotate around the rotating shaft body, so as to flip relative to the main support frame to adjust the backrest angle. Through the action of the adjustment component, the rotating shaft body can be driven to slide along the bed length direction of the adjustable electric bed, so that the rotation axis of the flipping action of the movable backboard is also adjusted along the bed length direction of the adjustable electric bed. The user can adjust the flipping axis position of the movable backboard according to his or her own body characteristics or personalized needs to reduce the squeezing feeling when flipping up, and can flexibly adjust the support height of the movable backboard in the flipped state, thereby improving comfort and strong versatility.

[0012] As a preferred technical solution, the adjustment assembly includes a sliding shaft and a sleeve. The sliding shaft is slidably arranged in the sleeve along the length direction of the bed. One end of the sliding shaft is located outside the sleeve and connected to the movable backplate. The rotating shaft body is fixed on one end of the sleeve away from the sliding shaft.

[0013] As a preferred technical solution, the adjustable electric bed also includes a back support frame, which is fixed to the bottom of the movable backboard. The movable shaft mechanism also includes a sliding drive component, one end of which is connected to the back support frame, and the other end is connected to the sleeve. The sliding drive component can drive the sleeve to slide along the sliding shaft.

[0014] As a preferred technical solution, the movable shaft mechanism further includes:

[0015] A synchronous driving member, one end of which is connected to the main support frame, and the other end of which is connected to the rotating shaft body or the shaft sleeve. The synchronous driving member can cooperate with the sliding driving member to drive the rotating shaft body to slide relative to the sliding shaft.

[0016] As a preferred technical solution, the movable pivot mechanism includes at least two groups of guide rails, the pivot body and the adjustment assembly arranged side by side. The movable pivot mechanism also includes a fixed frame, which is connected to at least two of the sleeves at the same time, and the other end of the sliding drive member is connected to the fixed frame.

[0017] As a preferred technical solution, the adjustable electric bed also includes:

[0018] An elastic member, one end of which is connected to the rotating shaft body, and the other end of which is connected to the main support frame, and the elastic member has an elastic force that drives the rotating shaft body to slide in a direction away from the adjustment component. Specifically, the elastic member adopts a tension spring, and the elastic member is always in a tensioned state. The elastic member provides a pre-tightening force for the rotating shaft body. When the movable backboard is flipped upward, the rotating shaft body has a tendency to slide toward the head of the bed, and the elastic force applied by the elastic member to the rotating shaft body is in the direction of the foot of the bed, which prevents the rotating shaft body from sliding toward the head of the bed, and ensures that the rotation center of the movable backboard will not deviate during the flipping process, so as to maintain the stability of the movable backboard during the flipping process.

[0019] As a preferred technical solution, hooks are provided at both ends of the elastic member, and the movable shaft mechanism further includes:

[0020] A rotating shaft connecting frame, the two ends of the rotating shaft body respectively pass through the two sides of the guide rail, the rotating shaft connecting frame connects the two ends of the rotating shaft body passing through the guide rail, and a hook is buckled with the rotating shaft connecting frame;

[0021] The mounting frame is fixed to the main support frame, and the other hook is buckled with the mounting frame.

[0022] As a preferred technical solution, the adjustable electric bed also includes a fixed backboard adjacent to the movable backboard, and a clearance groove is provided on the fixed backboard. When the movable backboard is flipped upward, the adjustment component is flipped upward with the movable backboard, and the clearance groove avoids the adjustment component.

[0023] As a preferred technical solution, the adjustable electric bed also includes:

[0024] A mounting plate, fastened to the bottom of the movable back plate;

[0025] A first electric push rod, one of the main support frame and the mounting plate is hinged to the body of the first electric push rod, and the other is hinged to the execution end of the first electric push rod, and the first electric push rod can drive the mounting plate to flip upward to lift the movable back plate.

[0026] As a preferred technical solution, the adjustable electric bed also includes:

[0027] The leg bed board and the foot bed board are hinged to each other and are movably connected to the main support frame;

[0028] A movable frame, one end of which is movably connected to the main support frame, and the other end of which can act on the bottom of the leg bed board;

[0029] A second electric push rod, one of the main support frame and the movable frame is hinged to the body of the second electric push rod, and the other is hinged to the execution end of the second electric push rod. The second electric push rod can drive the movable frame to flip upward to lift up the leg bed board and the foot bed board.

[0030] As a preferred technical solution, the adjustable electric bed also includes:

[0031] A first load-bearing frame and a second load-bearing frame, wherein the first load-bearing frame is fixed to the bottom of the leg bed board, and the second load-bearing frame is fixed to the bottom of the foot bed board, the first load-bearing frame and the second load-bearing frame are hinged to each other, and the other end of the movable frame abuts against the bottom of the first load-bearing frame.

[0032] Beneficial effects of the present invention:

[0033] The movable backboard of the adjustable electric bed provided by the present invention is connected to the rotating shaft body through an adjustment component, and the movable backboard can rotate around the rotating shaft body, so as to flip relative to the main support frame to adjust the backrest angle. Through the action of the adjustment component, the rotating shaft body can be driven to slide along the bed length direction of the adjustable electric bed, so that the rotation axis of the flipping action of the movable backboard is also adjusted along the bed length direction of the adjustable electric bed. The user can adjust the flipping axis position of the movable backboard according to his own body shape characteristics or personalized needs to reduce the squeezing feeling when flipping up, and can flexibly adjust the support height of the movable backboard in the flipped state, thereby improving comfort and having strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The structure of the adjustable electric bed provided by the first embodiment of the present invention is shown in FIG. Figure 1 ;

[0035] Figure 2 The structure of the adjustable electric bed provided by the first embodiment of the present invention is shown in FIG. Figure 2 ;

[0036] Figure 3 is a schematic diagram of the state of the adjustable electric bed provided by the first embodiment of the present invention when the rotating shaft body is in the first position;

[0037] Figure 4 is a schematic diagram of the tilting state of the adjustable electric bed provided by the first embodiment of the present invention when the rotating shaft body is in the first position;

[0038] Figure 5 is a schematic diagram of the state of the adjustable electric bed provided by the first embodiment of the present invention when the rotating shaft body is in the second position;

[0039] Figure 6is a schematic diagram of the tilted state of the adjustable electric bed provided by the first embodiment of the present invention when the rotating shaft body is in the second position;

[0040] Figure 7 It is a partial structural schematic diagram of an adjustable electric bed provided in Embodiment 1 of the present invention;

[0041] Figure 8 It is a structural schematic diagram of an adjustable electric bed provided in Embodiment 2 of the present invention.

[0042] In the figure:

[0043] 100, main support frame; 10, movable backboard; 101, back support frame; 20, fixed backboard; 201, clearance slot; 30, buttocks bed board; 40, leg bed board; 401, first load-bearing frame; 50, foot bed board; 501, second load-bearing frame; 60, limit frame; 70, support leg;

[0044] 1. Guide rail; 2. Rotating shaft body; 21. Rotating shaft connecting frame; 3. Sliding shaft; 4. Bushing; 5. Sliding drive member; 51. First fixed seat; 52. Second fixed seat; 6. Fixed frame; 7. Elastic member; 71. Mounting frame; 81. Mounting plate; 82. First electric push rod; 91. Movable frame; 911. Roller; 92. Second electric push rod; 11. Synchronous drive member; 12. Synchronous connecting frame. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] Embodiment 1:

[0050] like Figure 1-Figure 7 As shown, this embodiment provides an adjustable electric bed, which includes a main support frame 100 and a movable backboard 10, a fixed backboard 20, a buttocks board 30, a leg board 40 and a foot board 50 supported by it. The movable backboard 10, the fixed backboard 20, the buttocks board 30, the leg board 40 and the foot board 50 are arranged in sequence from the head of the bed to the foot of the bed, and a plurality of supporting legs 70 are provided at the bottom of the main support frame 100 to support the adjustable electric bed.

[0051] Further, such as Figure 1-Figure 7 As shown, the adjustable electric bed also includes a movable pivot mechanism, which includes a guide rail 1, a pivot body 2 and an adjustment component. The guide rail 1 is fixed on the main support frame 100, and the guide rail 1 extends along the length of the bed. The pivot body 2 is slidably arranged on the guide rail 1, and the adjustment component is installed on the movable back plate 10. The output end of the adjustment component is connected to the pivot body 2. The adjustment component can drive the pivot body 2 to slide along the guide rail 1, and the movable back plate 10 can flip around the pivot body 2 relative to the main support frame 100.

[0052] Specifically, the movable backboard 10 of the adjustable electric bed provided in this embodiment is connected to the rotating shaft body 2 through an adjustment component, and the movable backboard 10 can rotate around the rotating shaft body 2, so as to flip relative to the main support frame 100 to adjust the backrest angle. Through the action of the adjustment component, the rotating shaft body 2 can be driven to slide along the bed length direction of the adjustable electric bed. In this way, the rotation axis of the flipping action of the movable backboard 10 is also adjusted along the bed length direction of the adjustable electric bed. The user can adjust the flipping axis position of the movable backboard 10 according to his or her own body shape characteristics or personalized needs to reduce the squeezing feeling when flipping up, and can flexibly adjust the support height of the movable backboard 10 in the flipped state, thereby improving comfort and strong versatility.

[0053] Exemplarily, the guide rail 1 can be directly fixed to the main support frame 100, or can be installed on the fixed back plate 20, thereby indirectly fixed to the main support frame 100. In this embodiment, the guide rail 1 is directly fixed to the main support frame 100, avoiding the fixed back plate 20 from being subjected to a large local tension, thereby improving the structural stability.

[0054] Exemplarily, the guide rail 1 can be configured as a slide rail structure or a slide groove structure. When the guide rail 1 is configured as a slide rail structure, the rotating shaft body 2 is mounted on a slider and is slidably connected to the guide rail 1 through the slider. In this embodiment, the guide rail 1 is configured as a slide groove structure, the left and right sides of the guide rail 1 are configured as opening structures, and the two ends of the rotating shaft body 2 are respectively arranged on the left and right sides of the guide rail 1, without the need for an auxiliary sliding structure.

[0055] In this embodiment, the adjustment component is a telescopic structure, one end of the adjustment component is connected to the movable backboard 10, and the other end is connected to the rotating shaft body 2. The adjustment component can be extended and retracted along the length of the bed, thereby driving the rotating shaft body 2 to slide along the guide rail 1. Figure 3 and Figure 4 As shown, the adjustment assembly is extended to move the shaft body 2 to the first position, at which time the rotation center of the movable backboard 10 is close to the center position of the adjustable electric bed, and the lifting height of the movable backboard 10 is relatively low; Figure 5 and Figure 6 As shown, the adjusting assembly is shortened, so that the rotating shaft body 2 moves to the second position. At this time, the rotation center of the movable backboard 10 is away from the center position of the adjustable electric bed, and the lifting height of the movable backboard 10 is also higher.

[0056] In some embodiments, the adjustment component may also be configured as a cam structure or other transmission structures.

[0057] For example, Figure 2 , Figure 3 , Figure 5 and Figure 7As shown, the adjustment assembly includes a sliding shaft 3 and a shaft sleeve 4. The sliding shaft 3 is slidably arranged in the shaft sleeve 4 along the length of the bed. One end of the sliding shaft 3 is located outside the shaft sleeve 4 and connected to the movable backboard 10. The rotating shaft body 2 is fixed to the end of the shaft sleeve 4 away from the sliding shaft 3. Specifically, the shaft sleeve 4 is arranged in the guide rail 1. When adjusting, the user drives the shaft sleeve 4 to slide along the guide rail 1, and the rotating shaft body 2 moves accordingly. In the process of flipping the movable backboard 10, the sliding shaft 3 and the shaft sleeve 4 constitute a flip connecting rod of the movable backboard 10.

[0058] For example, Figure 2-Figure 6 As shown, the adjustable electric bed further includes a back support frame 101, which is fixed to the bottom of the movable backboard 10, and the movable shaft mechanism further includes a sliding drive member 5, one end of which is connected to the back support frame 101, and the other end is connected to the shaft sleeve 4, and the sliding drive member 5 can drive the shaft sleeve 4 to slide along the sliding shaft 3. Specifically, the body of the sliding drive member 5 is fixed to the side of the back support frame 101 close to the bed head through the first fixing seat 51, and the movable end of the sliding drive member 5 is connected to the shaft sleeve 4.

[0059] Exemplarily, the sliding drive member 5 is an electric drive member, preferably a servo electric push rod, and the user can accurately control the extension of the sliding drive member 5 according to their own needs, thereby adjusting the distance between the movable back plate 10 and the rotating shaft body 2, and the structure is compact and the energy is clean. In some embodiments, the sliding drive member 5 can also use other linear drive members such as hydraulic push rods.

[0060] For example, Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, the movable shaft mechanism includes at least two sets of guide rails 1, shaft bodies 2 and adjustment components arranged side by side, and the movable shaft mechanism also includes a fixed frame 6, which is connected to at least two shaft sleeves 4 at the same time, and the other end of the sliding drive member 5 is connected to the fixed frame 6. Specifically, the movable end of the sliding drive member 5 is connected to the fixed frame 6 through the second fixed seat 52, and the sliding drive member 5 can synchronously drive at least two shaft bodies 2 to slide synchronously, so that the central axes of at least two shaft bodies 2 always keep coincidence, so as to ensure that the movable back plate 10 can be turned over normally. The setting of at least two shaft bodies 2 can improve the stability of the turning action of the movable back plate 10, reduce the load on a single shaft body 2, and extend the service life. In this embodiment, the movable shaft mechanism includes two sets of guide rails 1, shaft bodies 2 and adjustment components arranged side by side, and the two ends of the fixed frame 6 are respectively connected to the two shaft sleeves 4, and the other end of the sliding drive member 5 is connected to the middle of the fixed frame 6. In some embodiments, the movable hinge mechanism may also include three or more sets of guide rails 1, hinge bodies 2 and adjustment components arranged side by side to further improve reliability and movement stability.

[0061] For example, Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, the adjustable electric bed also includes an elastic member 7, one end of the elastic member 7 is connected to the rotating shaft body 2, and the other end is connected to the main support frame 100. The elastic member 7 has an elastic force that drives the rotating shaft body 2 to slide in the direction away from the adjustment component. Specifically, the elastic member 7 adopts a tension spring, and the elastic member 7 is always in a tension state. The elastic member 7 provides a pre-tightening force for the rotating shaft body 2. When the movable backboard 10 flips upward, the rotating shaft body 2 has a tendency to slide toward the head of the bed, and the elastic force applied by the elastic member 7 to the rotating shaft body 2 is in the direction of the foot of the bed, which prevents the rotating shaft body 2 from sliding toward the head of the bed, ensuring that the rotation center of the movable backboard 10 will not shift during the flipping process, so as to maintain the stability of the movable backboard 10 during the flipping process. In some embodiments, the elastic member 7 can also adopt other elastic elements such as compression springs.

[0062] Further, such as Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, the movable shaft mechanism also includes a shaft connecting frame 21 and a mounting frame 71. The two ends of the shaft body 2 pass through the two sides of the guide rail 1 respectively. The shaft connecting frame 21 is in a U-shaped structure. The two ends of the shaft connecting frame 21 are rotatably connected to the two ends of the shaft body 2 passing through the guide rail 1. The mounting frame 71 is fixed to the main support frame 100. One end of the elastic member 7 is connected to the shaft connecting frame 21, and the other end is connected to the mounting frame 71. Specifically, hooks are provided at both ends of the elastic member 7, and hanging holes are provided on the shaft connecting frame 21 and the mounting frame 71 respectively. The two ends of the elastic member 7 are detachably connected to the shaft connecting frame 21 and the mounting frame 71 respectively through the matching buckle of the hook and the hanging hole. The user can replace the elastic member 7 of different models and thicknesses according to the size of the preload force required to meet personalized needs.

[0063] For example, Figure 1 As shown, a clearance groove 201 is provided on the fixed back plate 20 . When the movable back plate 10 flips up, the adjustment component flips up with the movable back plate 10 , and the clearance groove 201 avoids the adjustment component to avoid interference between the adjustment component and the fixed back plate 20 .

[0064] For example, Figure 1-Figure 6As shown, the adjustable electric bed also includes a mounting plate 81 and a first electric push rod 82. The mounting plate 81 is fastened to the bottom of the movable backboard 10. One of the main support frame 100 and the mounting plate 81 is hinged to the body of the first electric push rod 82, and the other is hinged to the execution end of the first electric push rod 82. The first electric push rod 82 can drive the mounting plate 81 to flip upward to lift the movable backboard 10. In this embodiment, the body of the first electric push rod 82 is hinged to the side of the main support frame 100 close to the head of the bed through a hinge seat, and the movable end of the first electric push rod 82 is hinged to the mounting plate 81 through another hinge seat. The mounting plate 81 is rotatably connected to the main support frame 100. When the first electric push rod 82 is extended, the mounting plate 81 is driven to rotate upward relative to the main support frame 100, and the other end of the mounting plate 81 lifts the movable backboard 10 to realize the automatic flip-up function of the movable backboard 10. It should be noted that, when the movable backplane 10 is in a horizontal state, the first electric push rod 82 is set at an angle to the horizontal plane, and the movable end of the first electric push rod 82 is set obliquely upward, and a connecting rod slider structure is formed between the main support frame 100, the movable backplane 10 and the first electric push rod 82: when the first electric push rod 82 is extended in a straight line, the angles between the movable backplane 10 and the main support frame 100 and the movable backplane 10 are changed, and the movable backplane 10 is flipped upward; conversely, when the first electric push rod 82 is retracted in a straight line, the angles between the movable backplane 10 and the main support frame 100 and the movable backplane 10 are also changed, and the movable backplane 10 is flipped downward.

[0065] Exemplarily, the mounting plate 31 is fastened to the bottom of the movable back plate 10 by screws, and one end of the sliding shaft 3 located outside the sleeve 4 is connected to the mounting plate 81. The mounting plate 81 is extended along the width direction of the adjustable electric bed. The two ends of the mounting plate 81 are respectively connected to two sliding shafts 3, and the mounting plate 81 and the end of the sliding shaft 3 are fixed by welding.

[0066] For example, Figure 1-Figure 6 As shown, the leg bed board 40 and the foot bed board 50 are hinged to each other and are both movably connected to the main support frame 100. Specifically, the adjustable electric bed also includes a first load-bearing frame 401 and a second load-bearing frame 501, the first load-bearing frame 401 is fixed to the bottom of the leg bed board 40, and the second load-bearing frame 501 is fixed to the bottom of the foot bed board 50, and the leg bed board 40 and the foot bed board 50 are hinged to each other through the first load-bearing frame 401 and the second load-bearing frame 501.

[0067] For example, Figure 1-Figure 6As shown, the adjustable electric bed also includes a movable frame 91 and a second electric push rod 92. One end of the movable frame 91 is movably connected to the main support frame 100, and the other end can act on the bottom of the leg bed board 40. One of the main support frame 100 and the movable frame 91 is hinged to the body of the second electric push rod 92, and the other is hinged to the execution end of the second electric push rod 92. The second electric push rod 92 can drive the movable frame 91 to flip upward to lift the leg bed board 40 and the foot bed board 50. Specifically, the body of the second electric push rod 92 is hinged to the side of the main support frame 100 close to the bed guard through a hinge seat, and the movable end of the second electric push rod 92 is hinged to the movable frame 91 through another hinge seat. The movable frame 91 is rotatably connected to the main support frame 100. When the second electric push rod 92 is extended, the movable frame 91 is driven to rotate upward relative to the main support frame 100, and the other end of the movable frame 91 lifts up the leg bed board 40, and the leg bed board 40 together with the foot bed board 50 are raised, and the connection side of the two is arched upward to realize the automatic flipping function of the leg bed board 40 and the foot bed board 50.

[0068] For example, Figure 1-Figure 6 As shown, the other end of the movable frame 91 abuts against the bottom of the first load-bearing frame 401. Specifically, the movable frame 91 includes two second movable connecting rods and a second movable cross bar connected therebetween. One end of the second movable connecting rod is hinged to the main support frame 100, and the other end is suspended and rotatably provided with a roller 911, which can roll along the bottom of the first load-bearing frame 401.

[0069] For example, Figure 1-Figure 6 As shown, a limit frame 60 is provided at the tail end of the adjustable electric bed, that is, the tail end of the foot bed board 50. The limit frame 60 is arranged as an inverted U-shaped structure, and its two ends are respectively passed through and fixed to the foot bed board 50. The limit frame 60 is used to limit the position of the tail end of the mattress to prevent the tail end of the mattress from falling out or tilting up when the adjustable electric bed is flipped or raised.

[0070] Embodiment 2:

[0071] like Figure 8 As shown, based on the first embodiment, this embodiment provides another adjustable electric bed, which is different from the first embodiment in that:

[0072] The adjustable electric bed does not include elastic parts and their related mounting structures. The movable shaft mechanism also includes a synchronous drive member 11. One end of the synchronous drive member 11 is connected to the main support frame 100, and the other end is connected to the shaft body 2 or the sleeve 4. The synchronous drive member 11 can cooperate with the sliding drive member 5 to drive the shaft body 2 to slide relative to the sliding shaft 3. When the sliding drive member 5 drives the sleeve 4 to slide relative to the sliding shaft 3, the shaft body 2 slides along the guide rail 1 accordingly. The synchronous drive member 11 synchronously drives the shaft body 2 to slide along the guide rail 1. It can be understood that the shaft body 2 simultaneously receives the coordinated driving force of the sliding drive member 5 and the synchronous drive member 11, so that it moves in a certain direction. The synchronous drive member 11 has a self-locking characteristic. Since the synchronous drive member 11 is connected to the main support frame 100, when the movable backboard 10 is flipped up, the synchronous drive member 11 can limit the sliding of the shaft body 2 relative to the main support frame 100, so as to keep the movable backboard 10 at a stable flipping angle and avoid the risk of the movable backboard 10 falling.

[0073] Exemplarily, the synchronous drive member 11 is a linear drive member, specifically a servo electric push rod, and the movable shaft mechanism also includes a synchronous connecting frame 12. The body of the synchronous drive member 11 is connected to the main support frame 100, and the output end of the synchronous drive member 11 is connected to the synchronous connecting frame 12. The synchronous connecting frame 12 is extended along the width direction of the adjustable electric bed, and its two ends are respectively hinged to the two rotating shaft bodies 2. The output end of the sliding drive member 5 is set toward the end of the bed, and the output end of the synchronous drive member 11 is set toward the head of the bed. The telescopic action of the synchronous drive member 11 is opposite to that of the sliding drive member 5, that is, when the sliding drive member 5 is extended, the synchronous drive member 11 is retracted, and when the sliding drive member 5 is retracted, the synchronous drive member 11 is extended. The telescopic relationship between the sliding drive member 5 and the synchronous drive member 11 is determined according to the angles between the two and the horizontal plane when the movable back plate 10 is horizontal. The telescopic components of the sliding drive member 5 and the synchronous drive member 11 in the horizontal direction are complementary.

[0074] In some embodiments, the output ends of the sliding driving member 5 and the synchronous driving member 11 may also be arranged in the same direction, and the sliding driving member 5 and the synchronous driving member 11 have the same expansion and contraction components in the horizontal direction.

[0075] In some embodiments, the synchronous driving member 11 may also be a hydraulic push rod or other linear driving member.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An adjustable electric bed, characterized in that: include: Main support frame (100); A movable back plate (10), wherein the main support frame (100) is capable of supporting the bottom of the movable back plate (10); A movable pivot mechanism comprises a guide rail (1), a pivot body (2) and an adjustment component, wherein the guide rail (1) is fixedly arranged on the main support frame (100) and extends along the length direction of the bed, the pivot body (2) is slidably arranged on the guide rail (1), the adjustment component is installed on the movable back plate (10), the output end of the adjustment component is connected to the pivot body (2), the adjustment component can drive the pivot body (2) to slide along the guide rail (1), and the movable back plate (10) can flip around the pivot body (2) relative to the main support frame (100).

2. The adjustable electric bed according to claim 1, characterized in that: The adjustment assembly comprises a sliding shaft (3) and a shaft sleeve (4); the sliding shaft (3) is slidably arranged in the shaft sleeve (4) along the length direction of the bed; one end of the sliding shaft (3) is located outside the shaft sleeve (4) and connected to the movable back plate (10); and the rotating shaft body (2) is fixed to one end of the shaft sleeve (4) away from the sliding shaft (3).

3. The adjustable electric bed according to claim 2, characterized in that: The adjustable electric bed also includes a back support frame (101), wherein the back support frame (101) is fixed to the bottom of the movable backboard (10), and the movable shaft mechanism also includes a sliding drive member (5), wherein one end of the sliding drive member (5) is connected to the back support frame (101), and the other end is connected to the shaft sleeve (4), and the sliding drive member (5) can drive the shaft sleeve (4) to slide along the sliding shaft (3).

4. The adjustable electric bed according to claim 3, characterized in that: The movable shaft mechanism also includes: A synchronous driving member (11), one end of which is connected to the main support frame (100), and the other end of which is connected to the rotating shaft body (2) or the shaft sleeve (4), and the synchronous driving member (11) can cooperate with the sliding driving member (5) to drive the rotating shaft body (2) to slide relative to the sliding shaft (3).

5. The adjustable electric bed according to claim 3, characterized in that: The movable rotating shaft mechanism comprises at least two groups of guide rails (1) arranged side by side, the rotating shaft body (2) and the adjusting assembly, and the movable rotating shaft mechanism also comprises a fixing frame (6), wherein the fixing frame (6) is connected to at least two of the shaft sleeves (4) at the same time, and the other end of the sliding drive member (5) is connected to the fixing frame (6).

6. The adjustable electric bed according to claim 1, characterized in that: The adjustable electric bed also includes: An elastic member (7), one end of the elastic member (7) is connected to the rotating shaft body (2), and the other end is connected to the main support frame (100), and the elastic member (7) has an elastic force that drives the rotating shaft body (2) to slide in a direction away from the adjustment component.

7. The adjustable electric bed according to claim 6, characterized in that: Hooks are arranged at both ends of the elastic member (7), and the movable shaft mechanism further comprises: A rotating shaft connecting frame (21), the two ends of the rotating shaft body (2) respectively pass through the two sides of the guide rail (1), the rotating shaft connecting frame (21) connects the two ends of the rotating shaft body (2) passing through the guide rail (1), and a hook is buckled with the rotating shaft connecting frame (21); The mounting frame (71) is fixed to the main support frame (100), and the other hook is buckled with the mounting frame (71).

8. The adjustable electric bed according to any one of claims 1 to 7, characterized in that: The adjustable electric bed also includes a fixed backboard (20) adjacent to the movable backboard (10), and a clearance groove (201) is provided on the fixed backboard (20). When the movable backboard (10) is flipped upward, the adjustment component is flipped upward along with the movable backboard (10), and the clearance groove (201) avoids the adjustment component.

9. The adjustable electric bed according to any one of claims 1 to 7, characterized in that: The adjustable electric bed also includes: A mounting plate (81) fastened to the bottom of the movable back plate (10); A first electric push rod (82), one of the main support frame (100) and the mounting plate (81) is hinged to the body of the first electric push rod (82), and the other is hinged to the execution end of the first electric push rod (82), and the first electric push rod (82) can drive the mounting plate (81) to flip upward to lift the movable back plate (10).

10. The adjustable electric bed according to any one of claims 1 to 7, characterized in that: The adjustable electric bed also includes: The leg bed board (40) and the foot bed board (50) are hinged to each other and are movably connected to the main support frame (100); A movable frame (91), one end of which is movably connected to the main support frame (100), and the other end of which can act on the bottom of the leg bed board (40); A second electric push rod (92), one of the main support frame (100) and the movable frame (91) is hinged to the body of the second electric push rod (92), and the other is hinged to the execution end of the second electric push rod (92), and the second electric push rod (92) can drive the movable frame (91) to flip upward to lift up the leg bed board (40) and the foot bed board (50).

11. The adjustable electric bed according to claim 10, characterized in that: The adjustable electric bed also includes: A first load-bearing frame (401) and a second load-bearing frame (501), wherein the first load-bearing frame (401) is fixed to the bottom of the leg bed board (40), and the second load-bearing frame (501) is fixed to the bottom of the foot bed board (50), the first load-bearing frame (401) and the second load-bearing frame (501) are hinged to each other, and the other end of the movable frame (91) abuts against the bottom of the first load-bearing frame (401).

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