Electric bed backboard headboard linkage structure and electric bed

Abstract

The utility model provides an electric bed backboard and headboard linkage structure and an electric bed, which are arranged between the backboard and the headboard of the electric bed. When an electric push rod connected to the backboard pushes the backboard to flip, the headboard can also be linked to rotate to meet the user's head support needs. The electric bed backboard and headboard linkage structure comprises: a sliding limit seat, the sliding limit seat is arranged on the backboard, and an avoidance opening for the telescopic movement of the electric push rod is arranged on the sliding limit seat, and a limiting groove is arranged on the side wall of the avoidance opening; a pulley, the pulley is arranged in the avoidance opening and can reciprocate along the limiting groove, the telescopic end of the electric push rod is hinged to the pulley, and the electric push rod pushes the pulley to slide from one end of the limiting groove to the other end; a transmission rod, one end of the transmission rod is hinged to the telescopic end of the electric push rod, and the other end is hinged to the headboard; the utility model solves the problem that the electric bed in the prior art adds an extra driving member to drive the headboard separately, which increases the cost and makes the structure of the electric bed more complicated.

Description

Technical Field

[0001] The utility model relates to the technical field of smart home, in particular to an electric bed backboard and headboard linkage structure and an electric bed. Background Art

[0002] With the continuous improvement of people's living standards, people are pursuing a higher quality of life. Electric beds have gradually come into people's view due to their comfort and convenience. Electric beds can provide adjustments at different angles to meet the various needs of users.

[0003] In order to provide a more comfortable user experience, in some scenarios where the backboard of an electric bed is flipped, such as reading and dining, the support angle required by the user's head is inconsistent with the angle required by the back. In order to provide a better reading and dining experience for the user, the headboard needs to be flipped at a certain angle in addition to the flipping of the backboard.

[0004] The electric beds in the prior art either ignore the above-mentioned pain points in use, or add additional driving components to drive the headboard separately, which not only increases the cost, but also makes the structure of the electric bed, which is already cramped in space, more complicated. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the technical problem to be solved by the present invention is to provide an electric bed backboard headboard linkage structure and an electric bed, so as to solve the problem that the electric bed in the prior art has an additional driving component to drive the headboard separately, which increases the cost and makes the structure of the electric bed more complicated.

[0006] In order to solve the above technical problems, the utility model provides an electric bed backboard and headboard linkage structure, which is arranged between the backboard and the headboard of the electric bed, and one end of the backboard and the headboard are hinged to each other. When the electric push rod connected to the backboard pushes the backboard to flip, the headboard can also be linked to rotate to meet the user's head pillow needs. The electric bed backboard and headboard linkage structure includes:

[0007] A sliding limit seat, the sliding limit seat is arranged on the back plate, the sliding limit seat is provided with an avoidance opening for the telescopic movement of the electric push rod, and a limit groove is arranged on the side wall of the avoidance opening;

[0008] A pulley, the pulley is arranged in the avoidance opening and can reciprocate along the limiting groove, the telescopic end of the electric push rod is hinged to the pulley, and the electric push rod pushes the pulley to slide from one end of the limiting groove to the other end;

[0009] A transmission rod, one end of which is hinged to the telescopic end of the electric push rod, and the other end of which is hinged to the head plate.

[0010] As a more preferred embodiment, the avoidance opening includes two side walls arranged opposite to each other, and limiting grooves are provided on the two side walls. The linkage structure of the electric bed backboard and headboard includes two pulleys, and the two pulleys are respectively slidably arranged in the limiting grooves, and the telescopic end of the electric push rod is hinged to the two pulleys at the same time.

[0011] As a more preferred embodiment, the pulley includes an outer ring large wheel and an inner ring small wheel which are arranged simultaneously, the inner ring small wheel is opened in the limiting groove, and the outer ring large wheel is tightly attached to the side wall of the avoidance opening.

[0012] As a more preferred embodiment, the avoidance opening includes a support baffle plate vertically arranged with respect to the side wall, the support baffle plate abuts against the outer ring large wheel, and when the inner ring small wheel slides in the limiting groove, the outer ring large wheel rolls along the support baffle plate.

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

[0014] A bed frame and a bed board, wherein the bed board comprises a back board and a head board hinged to one end of the back board;

[0015] The above-mentioned electric bed backboard and headboard linkage structure, the sliding limit seat is arranged on the backboard, and the other end of the transmission rod is hinged to the headboard;

[0016] A front driving member, which is an electric push rod, has a fixed end hinged on the bed frame, a telescopic end disposed in the avoidance opening, and connected with the pulley and the transmission rod, and is used to drive the backboard and the headboard to flip and present a variety of postures including a horizontal posture.

[0017] As a more preferred embodiment, the bed frame includes a front support and a rear support which are hinged to each other at one end.

[0018] As a more preferred embodiment, the bed board also includes a front seat board, which is slidably arranged on the front bracket, and the other end of the back board is hinged to the front seat board. A pull rod is arranged on the front bracket, and one end of the pull rod is hinged to the front bracket, and the other end is hinged to the back board. When the electric push rod drives the back frame to flip upward, the pull rod pulls the back frame to drive the front seat board to slide along the front bracket. The entire lifting process ensures that the user is more comfortable and at the same time slows down the forward shift of the user's center of gravity, making it more convenient for the user to take and put items.

[0019] As a more preferred embodiment, the bed frame also includes a rear seat board and a leg board, the rear seat board is arranged at the front part of the rear support, and the leg board is hinged to one end of the rear seat board; the electric bed also includes a rear drive component arranged on the rear support, the rear drive component is connected to the leg board, and can drive the leg board to flip.

[0020] As a more preferred embodiment, the electric bed further comprises a lumbar support lifting mechanism disposed on the bed board, which supports the user's waist in accordance with different usage scenarios of the electric bed to enhance the user experience.

[0021] As a more preferred embodiment, the leg board includes a thigh board and a calf board, wherein one end of the thigh board is hinged to the rear seat frame, and the other end of the thigh board is hinged to one end of the calf board; a connecting rod is provided on the rear bracket, one end of the connecting rod is hinged to the rear bracket, and the other end is hinged to the calf board.

[0022] As described above, the electric bed backboard and headboard linkage structure and the electric bed of the utility model have the following beneficial effects: when the electric bed backboard and headboard linkage structure of the utility model is used, the electric push rod is used to push the backboard, and the backboard flips along its other end. During the flipping process, the electric push rod simultaneously pushes the pulley to slide from one end of the limiting groove to the other end, and in the process that the pulley slides from one end of the limiting groove to the other end, one end of the transmission rod is also pushed by the electric push rod, transmitted to the headboard and linked, and when the pulley moves to the other end of the limiting groove, the pulley is limited, and at the same time, the headboard is also limited at a certain angle, so as to facilitate the user's head to rest on the pillow; that is, in the use scenarios of lying down such as reading and dining, when the backboard is flipped, the headboard is additionally flipped at a certain angle on the basis of the flipping of the backboard, so as to meet a better use experience;

[0023] The electric bed of the utility model adopts the above-mentioned electric bed backboard and headboard linkage structure, and only one front driving component is needed to drive the backboard and the headboard to flip at the same time, and the headboard can be flipped at a certain angle on the basis of the flipping of the backboard, so as to better meet the user experience in reclining use scenarios such as reading and dining; at the same time, it saves additional driving components, reduces costs, and simplifies the structure;

[0024] The electric bed backboard and headboard linkage structure and the electric bed of the utility model realize the flipping of the backboard and the headboard at the same time with only one driving component through the linkage of the backboard and the headboard, thereby improving the user experience and solving the problem in the prior art that the electric bed requires an additional driving component to drive the headboard separately, which increases the cost and makes the structure of the electric bed more complicated. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1Shown is an exploded schematic diagram of the linkage structure of the backboard and headboard of the electric bed and the electric bed of the utility model;

[0026] Figure 2 Display as Figure 1 A partial enlarged view of the middle area A;

[0027] Figure 3 It is a schematic diagram showing the pulley in the linkage structure of the back board and head board of the electric bed of the utility model when it is at one end of the limit groove;

[0028] Figure 4 It shows a schematic diagram of the pulley in the linkage structure of the back board and head board of the electric bed of the utility model moving to the other end of the limit groove.

[0029] Component number description

[0030] 1 Electric bed backboard headboard linkage structure

[0031] 11 Sliding limit seat

[0032] 111 Avoid openings

[0033] 112 Sidewall

[0034] 113 Limiting slot

[0035] 114 Support baffle

[0036] 12 Pulley

[0037] 121 outer ring large wheel

[0038] 122 Inner ring small wheel

[0039] 13 Transmission rod

[0040] 2 bed boards

[0041] 21 Back Panel

[0042] 22 Headboard

[0043] 23 Front seat panel

[0044] 24 Rear seat panel

[0045] 25 Leg Board

[0046] 251 Thigh Board

[0047] 252 Calf Board

[0048] 3 Lumbar support lifting mechanism

[0049] 31 Lumbar support

[0050] 32 Lumbar support drive mechanism

[0051] 33 Lumbar support electric actuator

[0052] 4 Bed frame

[0053] 41 Front bracket

[0054] 411 Front Side Bar

[0055] 412 front crossbeam

[0056] 413 front sliding assembly

[0057] 413a Slider

[0058] 413b Sliding bar

[0059] 414 Tie rod

[0060] 42 rear bracket

[0061] 421 rear side bar

[0062] 422 rear crossbeam

[0063] 423 Connecting rod

[0064] 5 Front drive parts

[0065] 6 Rear drive parts DETAILED DESCRIPTION

[0066] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0067] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terms used here are only for describing specific embodiments and are not intended to limit this application. Spatial related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., can be used in the text to facilitate the description of the relationship between an element or feature shown in the figure and another element or feature.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "hold" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless there is an indication to the contrary in the context. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions or operations is inherently mutually exclusive in some way.

[0070] like Figures 1 to 4 As shown, the utility model provides an electric bed backboard headboard linkage structure 1, which is arranged between the backboard 21 and the headboard 22 of the electric bed. The backboard 21 and one end of the headboard 22 are hinged to each other. When the electric push rod connected to the backboard 21 pushes the backboard 21 to flip, the headboard 22 can also be linked to rotate to meet the user's head pillow needs. The electric bed backboard headboard linkage structure 1 includes:

[0071] A sliding limit seat 11, wherein the sliding limit seat 11 is disposed on the back plate 21, and an avoidance opening 111 for the telescopic movement of the electric push rod is disposed on the sliding limit seat 11, and a limiting groove 113 is disposed on a side wall 112 of the avoidance opening 111;

[0072] The pulley 12 is disposed in the avoidance opening 111 and can reciprocate along the limiting groove 113. The telescopic end of the electric push rod is hinged to the pulley 12, and the electric push rod pushes the pulley 12 to slide from one end of the limiting groove 113 to the other end;

[0073] A transmission rod 13 , one end of which is hinged to the telescopic end of the electric push rod, and the other end of which is hinged to the head plate 22 .

[0074] In order to better introduce the electric bed backboard headboard linkage structure 1 of the utility model, it is now explained in combination with the following specific applications: when the electric bed backboard headboard linkage structure 1 of the utility model is used, the electric push rod is used to push the backboard 21, and the backboard 21 flips along its other end. During the flipping process, the electric push rod simultaneously pushes the pulley 12 to slide from one end of the limit groove 113 to the other end, and in the process of the pulley 12 sliding from one end of the limit groove 113 to the other end, as shown in FIG. Figure 3 as well as Figure 4 As shown, one end of the transmission rod 13 is also pushed by the electric push rod, transmitted to the head board 22 and linked thereto, and when the pulley 12 moves to the other end of the limiting groove 113, the pulley 12 is limited, and at the same time, the head board 22 is also limited at a certain angle, so as to facilitate the user's head rest; that is, in the use scenarios of lying down such as reading and dining, when the back board 21 is flipped, the head board 22 is additionally flipped at a certain angle on the basis of the flipping of the back board 21, so as to meet a better user experience.

[0075] In this embodiment, if Figure 2 , Figure 3 as well as Figure 4 As shown, the avoidance opening 111 includes two side walls 112 arranged opposite to each other, and a limiting groove 113 is provided on each of the two side walls 112. The electric bed backboard and headboard linkage structure 1 includes two pulleys 12, and the two pulleys 12 are respectively slidably arranged in the limiting grooves 113, and the telescopic end of the electric push rod is hinged to the two pulleys 12 at the same time.

[0076] In this embodiment, if Figure 2 , Figure 3 as well as Figure 4 As shown, the pulley 12 includes an outer ring large wheel 121 and an inner ring small wheel 122 which are arranged simultaneously. The inner ring small wheel 122 is opened in the limiting groove 113, and the outer ring large wheel 121 is tightly attached to the side wall 112 of the avoidance opening 111.

[0077] In this embodiment, if Figure 2 , Figure 3 as well as Figure 4 As shown, the avoidance opening 111 includes a support baffle 114 vertically arranged with respect to the side wall 112 , and the support baffle 114 abuts against the outer ring large wheel 121 . When the inner ring small wheel 122 slides in the limiting groove 113 , the outer ring large wheel 121 rolls along the support baffle 114 .

[0078] In order to better solve the above problems, the utility model also provides an electric bed, comprising:

[0079] A bed frame 4 and a bed board 2, wherein the bed board 2 includes a back board 21 and a head board 22 hingedly connected to one end of the back board 21;

[0080] The above-mentioned electric bed backboard and headboard linkage structure 1, the sliding limit seat 11 is arranged on the backboard 21, and the other end of the transmission rod 13 is hinged to the headboard 22;

[0081] The front driving member 5 is an electric push rod, the fixed end of the front driving member 5 is hinged on the bed frame 4, the telescopic end is arranged in the avoidance opening 111, and intersects with the pulley 12 and the transmission rod 13, and the front driving member 5 is used to drive the back plate 21 and the head plate 22 to flip and present a variety of postures including a horizontal posture.

[0082] In order to better introduce the electric bed of the present invention, it is now explained in combination with the following specific applications: the electric bed of the present invention adopts the above-mentioned electric bed backboard and headboard linkage structure 1, and only one front driving component 5 is required to simultaneously drive the backboard 21 and the headboard 22 to flip, and the headboard 22 can be additionally flipped to a certain angle on the basis of the flipping of the backboard 21, which better meets the user experience in reclining use scenarios such as reading and dining; at the same time, additional driving components are saved, the cost is reduced, and the structure is simplified; it can be seen that the electric bed backboard and headboard linkage structure and the electric bed of the present invention, through the linkage of the backboard 21 and the headboard 22, only require one driving component to simultaneously drive the flipping of the backboard 21 and the headboard 22, thereby improving the user experience and solving the problem in the prior art that the electric bed requires an additional driving component to drive the headboard 22 separately, which increases the cost and makes the structure of the electric bed more complicated.

[0083] In this embodiment, if Figure 1 As shown, the bed frame 4 includes a front bracket 41 and a rear bracket 42 which are hinged to each other at one end; more specifically, in the present embodiment, the front bracket 41 is a frame structure formed by two front side rods 411 and a front crossbeam 412, and the rear bracket 42 is a frame structure formed by two rear side rods 421 and a rear crossbeam 422; further, in the present embodiment, a front sliding assembly 413 is also provided on the front bracket 41, and the front sliding assembly 413 includes two sliders 413a and a sliding rod 413b connecting the two sliders 413a, and the two sliders 413a are respectively slidably arranged on the two front side rods 411, and when the slider 413a slides on the front side rod 411, it drives the sliding rod 413b to slide; further, in the present embodiment, the fixed end of the front driving member 5 is hinged to the sliding rod 413b.

[0084] In this embodiment, if Figure 1As shown, the bed board 2 also includes a front seat board 23, which is slidably set on the front bracket 41, and the other end of the back board 21 is hinged to the front seat board 23. A pull rod 414 is provided on the front bracket 41, and one end of the pull rod 414 is hinged to the front bracket 41, and the other end is hinged to the back board 21. When the electric push rod drives the back frame to flip upward, the pull rod 414 pulls the back frame to drive the front seat board 23 to slide along the front bracket 41. The entire lifting process ensures that the user is more comfortable and at the same time slows down the forward shift of the user's center of gravity, making it more convenient for the user to take and put items.

[0085] Furthermore, in this embodiment, if Figure 1 As shown, the front seat plate 23 is connected to the sliding rod 413b. When the pull rod 414 pulls the back frame, the front seat plate 23 is driven to slide along the front bracket 41 through the sliding rod 413b.

[0086] In this embodiment, if Figure 1 As shown, the bed frame 4 also includes a rear seat plate 24 and a leg plate 25, the rear seat plate 24 is arranged at the front part of the rear support 42, and the leg plate 25 is hinged to one end of the rear seat plate 24; the electric bed also includes a rear drive component 6 arranged on the rear support 42, the rear drive component 6 is connected to the leg plate 25, and can drive the leg plate 25 to flip.

[0087] In this embodiment, if Figure 1 As shown, the electric bed also includes a lumbar support lifting mechanism 3 arranged on the bed board 2, which supports the user's waist in different usage scenarios of the electric bed to enhance the user experience; further, in this embodiment, the lumbar support lifting mechanism 3 includes a lumbar support 31 and a lumbar support driving mechanism 32, the lumbar support 31 is arranged above the front seat board 23, and is connected to the lumbar support driving mechanism 32 arranged on the back of the front seat board 23, the lumbar support driving mechanism 32 drives the lumbar support 31 to be lifted up and protruded from the front seat board 23 or to be retracted and fitted to the front seat board 23; when the user lies down and needs to use the lumbar support 31, the lumbar support driving mechanism 32 drives the lumbar support 31 to be lifted up and protruded from the front seat board 23, and the position of the lumbar support 31 can be further adjusted by adjusting the lifting height, so as to provide a better support for the user's waist; when the user adopts a side-lying or prone sleeping position, the lumbar support driving mechanism 32 drives the lumbar support 31 to be retracted and fitted to the front seat board 23. In this embodiment, as Figure 1 as well as Figure 2As shown, the lumbar support driving mechanism 32 includes a lumbar support electric push rod 33 and a lumbar support 31 connecting rod mechanism connected to the lumbar support electric push rod 33, one end of the lumbar support electric push rod 33 is hinged to the front seat plate 23, and the other end of the lumbar support electric push rod 33 is hinged to the lumbar support 31 connecting rod mechanism; the electric push rod is used as the power, the structure is simple, and maintenance and installation are convenient.

[0088] In this embodiment, if Figure 1 As shown, the leg board 25 includes a thigh board 251 and a calf board 252, wherein one end of the thigh board 251 is hinged to the rear seat frame, and the other end of the thigh board 251 is hinged to one end of the calf board 252; a connecting rod 423 is provided on the rear bracket 42, one end of the connecting rod 423 is hinged to the rear bracket 42, and the other end is hinged to the calf board 252.

[0089] In summary, the electric bed backboard headboard linkage structure and the electric bed of the utility model have the following advantages:

[0090] 1. Linkage structure design: The linkage structure 1 of the backboard and headboard of the electric bed realizes the synchronous flipping of the backboard 21 and the headboard 22 through the sliding limit seat 11, the pulley 12 and the transmission rod 13.

[0091] 2. Ease of operation: Only one electric push rod is needed to realize the linkage flipping of the back plate 21 and the head plate 22, which simplifies the operation.

[0092] 3. Optimized user experience: The head panel 22 can be flipped to a certain angle based on the flipping of the back panel 21 to meet the needs of use in scenarios such as reading and dining.

[0093] 4. Compact structure: The design of the avoidance opening 111 and the limiting groove 113 on the sliding limiting seat 11 provides movement space for the electric push rod while maintaining a compact structure.

[0094] 5. Smooth movement: The 12-wheel design allows the electric push rod to push smoothly, reducing friction and noise during movement.

[0095] 6. Cost-effectiveness: Reduce the use of additional drive parts and reduce manufacturing and maintenance costs.

[0096] 7. Versatility: The electric bed backboard and headboard linkage structure 1 is suitable for a variety of usage scenarios, improving the practicality of the electric bed.

[0097] 8. Lumbar support lifting mechanism 3: The lumbar support 31 can be adjusted to rise and fall according to different usage scenarios to enhance the comfort of the user.

[0098] 9. Leg panel 25 design: The multi-section design of the thigh panel 251 and the calf panel 252 of the leg panel 25 allows for a more natural leg support and placement.

[0099] 10. Application of the connecting rod 423: The connecting rod 423 on the rear bracket 42 provides an additional support point to enhance the stability of the overall structure.

[0100] 11. Sliding design of the front seat plate 23: The front seat plate 23 can slide along the front bracket 41, providing more flexible space adjustment to meet the needs of different users.

[0101] 12. Ease of maintenance: The lumbar support drive mechanism 32 adopts an electric push rod to simplify the maintenance and installation process.

[0102] The electric bed backboard and headboard linkage structure 1 of the present invention realizes the synchronous flipping of the backboard 21 and the headboard 22 through innovative design, and only one electric push rod is required to complete the operation, which simplifies the structure of the electric bed and reduces the cost. The design of the linkage mechanism allows the headboard 22 to adjust the angle additionally on the basis of the flipping of the backboard 21 to meet the comfort requirements in different usage scenarios. The design of the sliding limit seat 11 and the pulley 12 ensures the smoothness and compactness of the movement. In addition, the addition of the lumbar support lifting mechanism 3 further enhances the comfort and applicability of the electric bed. Overall, the electric bed backboard and headboard linkage structure and electric bed design of the present invention, through its innovative linkage mechanism and structural design, provide a more comfortable, flexible and economical electric bed use experience, and meet consumers' higher requirements for the versatility and comfort of electric beds. Therefore, the utility model effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

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

Claims

1. An electric bed backboard and headboard linkage structure (1), arranged between a backboard (21) and a headboard (22) of the electric bed, wherein one end of the backboard (21) and the headboard (22) are hinged to each other, and when an electric push rod connected to the backboard (21) pushes the backboard (21) to flip, the headboard (22) can also be linked to rotate to meet the user's head pillow needs, characterized in that: The electric bed backboard and headboard linkage structure (1) comprises: A sliding limit seat (11), the sliding limit seat (11) being arranged on the back plate (21), the sliding limit seat (11) being provided with an avoidance opening (111) for telescopic movement of the electric push rod, and a limit groove (113) being provided on a side wall (112) of the avoidance opening (111); A pulley (12), the pulley (12) being arranged in the avoidance opening (111) and being capable of reciprocating along the limiting groove (113), the telescopic end of the electric push rod being hinged to the pulley (12), and the electric push rod pushing the pulley (12) to slide from one end of the limiting groove (113) to the other end; A transmission rod (13), one end of which is hinged to the telescopic end of the electric push rod, and the other end of which is hinged to the head plate (22).

2. The electric bed backboard and headboard linkage structure (1) according to claim 1, characterized in that: The avoidance opening (111) comprises two side walls (112) arranged opposite to each other, and a limiting groove (113) is provided on each of the two side walls (112). The electric bed backboard and headboard linkage structure (1) comprises two pulleys (12), and the two pulleys (12) are respectively slidably arranged in the limiting grooves (113), and the telescopic end of the electric push rod is simultaneously hinged to the two pulleys (12).

3. The electric bed backboard and headboard linkage structure (1) according to claim 1, characterized in that: The pulley (12) comprises an outer ring large wheel (121) and an inner ring small wheel (122) which are arranged simultaneously, the inner ring small wheel (122) is opened in the limiting groove (113), and the outer ring large wheel (121) is tightly attached to the side wall (112) of the avoidance opening (111).

4. The electric bed backboard and headboard linkage structure (1) according to claim 3, characterized in that: The avoidance opening (111) comprises a support baffle (114) vertically arranged with respect to the side wall (112); the support baffle (114) abuts against the outer ring large wheel (121); when the inner ring small wheel (122) slides in the limiting groove (113), the outer ring large wheel (121) rolls along the support baffle (114).

5. An electric bed, characterized in that: Said A bed frame (4) and a bed board (2), wherein the bed board (2) comprises a back board (21) and a head board (22) hingedly connected to one end of the back board (21); The electric bed backboard and headboard linkage structure (1) as described in any one of claims 1 to 4, wherein the sliding limit seat (11) is arranged on the backboard (21), and the other end of the transmission rod (13) is hinged to the headboard (22); A front driving member (5), wherein the front driving member (5) is an electric push rod, wherein the fixed end of the front driving member (5) is hinged on the bed frame (4), and the telescopic end is arranged in the avoidance opening (111) and intersected with the pulley (12) and the transmission rod (13), and the front driving member (5) is used to drive the backboard (21) and the headboard (22) to flip and present a variety of postures including a horizontal posture.

6. The electric bed according to claim 5, characterized in that: The bed frame (4) comprises a front support (41) and a rear support (42) which are hinged to each other at one end.

7. The electric bed according to claim 6, characterized in that: The bed board (2) also includes a front seat board (23), which is slidably arranged on the front bracket (41), and the other end of the back board (21) is hinged to the front seat board (23). A pull rod (414) is arranged on the front bracket (41), and one end of the pull rod (414) is hinged to the front bracket (41), and the other end is hinged to the back board (21). When the electric push rod drives the back frame to flip upward, the pull rod (414) drives the front seat board (23) to slide along the front bracket (41) by pulling the back frame.

8. The electric bed according to claim 6, characterized in that: The bed frame (4) also includes a rear seat plate (24) and a leg plate (25), wherein the rear seat plate (24) is arranged at the front part of the rear support (42), and the leg plate (25) is hinged to one end of the rear seat plate (24); the electric bed also includes a rear drive member (6) arranged on the rear support (42), wherein the rear drive member (6) is connected to the leg plate (25) and can drive the leg plate (25) to flip.

9. The electric bed according to claim 5, characterized in that: The electric bed also includes a waist support lifting mechanism (3) arranged on the bed board (2).

10. The electric bed according to claim 8, characterized in that: The leg board (25) includes a thigh board (251) and a calf board (252), wherein one end of the thigh board (251) is hinged to the rear seat frame, and the other end of the thigh board (251) is hinged to one end of the calf board (252); a connecting rod (423) is provided on the rear bracket (42), one end of the connecting rod (423) is hinged to the rear bracket (42), and the other end is hinged to the calf board (252).

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