Bed board height self-adaptive electric bed

Abstract

The utility model provides an electric bed with a height-adaptive bed board, and solves the problems that the research and development cost is increased and the development period is prolonged due to the fact that a gap between a support frame and the bed board is difficult to flexibly adjust in the development and verification process of an electric bed in the prior art. The device comprises a supporting frame, the supporting frame comprises a front frame and a rear frame, one end of the front frame is hinged to one end of the rear frame, a front driving unit is arranged on the front frame, and a plurality of front heightening supports and rear heightening supports are arranged on the front frame and the rear frame respectively; the bed board assembly comprises a back board, a front seat board and a lower limb board, the front seat board is fixed to the rear portion of the front frame through a front heightening support, one end of the back board is hinged to the front end of the front seat board, and the front driving unit is connected with the back board and can push the back board to turn over along the end hinged to the front seat board; the back plate is in lap joint with the front heightening support and is horizontal with the front seat plate, and the front heightening support improves the space needed by the overturning action of the front driving unit. And the lower limb plate is heightened to be flush with the front seat plate through the rear heightening bracket.

Description

Technical Field

[0001] This utility model relates to the field of smart home technology, and in particular to an electric bed with an adaptive bed board height. Background Technology

[0002] In today's society, the fields of modern home and medical care are developing rapidly, and the application of electric beds is becoming increasingly widespread. With their unique advantage of adjustable bed height and posture, electric beds can provide users with a more comfortable and pleasant resting experience. Especially in medical settings, electric beds play a significant role in patient care and rehabilitation, and their importance is self-evident.

[0003] However, existing electric beds have some structural design problems that urgently need to be solved, and these potential defects affect their performance and application to some extent.

[0004] Currently, most electric beds on the market employ different drive unit structures to achieve bed height adjustment and posture transformation functions. However, these different drive unit structures require significantly different spaces during operation and when folded. This undoubtedly brings many inconveniences to product development, because during the product development phase, to ensure the normal operation of the drive unit and the smooth folding of the bed, it is often necessary to repeatedly adjust the distance between the bed board assembly and the support frame. This process is not only time-consuming and labor-intensive, but also greatly reduces development efficiency.

[0005] Furthermore, in traditional electric bed structures, the height adjustment of each part of the bed board is relatively fixed, lacking a flexible and effective adjustment mechanism. This means that when it is necessary to adapt to different drive unit structures, it is often necessary to make large-scale modifications to the entire bed structure. As a result, complex structural verification work is unavoidable during product development, which not only consumes a lot of time and energy but also significantly increases R&D costs and greatly prolongs the product development cycle, thus putting the company at a disadvantage in market competition. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide an electric bed with adaptive bed board height, which solves the problem of increased R&D costs and development cycle caused by the difficulty in flexibly adjusting the gap between the support frame and the bed board during the development and verification process of existing electric beds.

[0007] To solve the above-mentioned technical problems, this utility model provides an electric bed with adaptive bed height, comprising:

[0008] A support frame, comprising a front frame and a rear frame, wherein one end of the front frame is hinged to one end of the rear frame, a front drive unit is provided on the front frame, and a plurality of front elevation brackets and a rear elevation bracket are respectively provided on the front frame and the rear frame.

[0009] A bed board assembly includes a backrest, a front seat board, and a lower limb board. The front seat board is fixed to the rear of the front frame via a front elevation bracket. One end of the backrest is hinged to the front end of the front seat board. A front drive unit is connected to the backrest and can push the backrest to flip along the end hinged to the front seat board, changing between a flipped posture and a horizontal posture. In the horizontal posture, the backrest overlaps the front elevation bracket and is horizontal to the front seat board. The front elevation bracket increases the space required for the front drive unit to flip. The lower limb board is raised to be flush with the front seat board via a rear elevation bracket.

[0010] The support frame is folded along the hinge between the front and rear frames, and the bed board assembly mounted on it is folded at the same time, switching the height-adaptive electric bed from the unfolded state to the folded state.

[0011] As a more preferred embodiment, the front frame is a rectangular frame structure formed by a front crossbeam and two front side rods, and the rear frame is a rectangular frame structure formed by a rear crossbeam and two rear side rods. One end of each of the two front side rods is hinged to one end of the corresponding rear side rod. The advantage is that the rectangular frame structure of the front and rear frames enhances the overall strength and stability of the support frame. The hinged ends of the front and rear side rods allow the support frame to fold smoothly, facilitating the storage and unfolding of the bed, while also ensuring the structural stability of the bed during use.

[0012] As a more preferred embodiment, the rear frame further includes two rear hinged elevation connectors. Each rear hinged elevation connector comprises an integrally formed hinge portion, a fixing portion, and an elevation portion. The rear hinged elevation connector is fixed to the end of the rear side rod via the fixing portion and hinged to the end of the front side rod via the hinge portion. Simultaneously, the elevation portion supports the front of the lower limb plate. The advantage of this design is that the rear hinged elevation connectors not only achieve the hinge between the front and rear frames but also support the front of the lower limb plate through the elevation portion, ensuring that the lower limb plate is flush with the front seat plate. This integrated design simplifies the structure, improves the stability and reliability of the support, and provides stable support for the lower limb plate.

[0013] In a more preferred embodiment, the front drive unit includes a front tilting mechanism and a front tilting drive component. The front tilting mechanism includes two front tilting linkages and a front tilting beam connected to the front tilting linkages at both ends. Both ends of the front tilting beam are rotatably mounted on the front side rod, with the other end abutting against the back plate. The front tilting drive component is mounted on the front crossbeam and hinged to the front tilting beam. The front tilting drive component drives the front tilting beam to rotate, which in turn drives the front tilting linkages to rotate. The other end of the front tilting linkage lifts or lowers the back plate while sliding along the surface of the back plate. The advantage is that the design of the front drive unit allows the back plate to tilt smoothly under the push of the front drive unit, achieving switching between different postures. The cooperation between the front tilting linkages and the front tilting beam allows the back plate to be smoothly lifted or lowered during tilting, while the sliding of the linkage ends along the back plate surface reduces friction and wear, improving the smoothness and reliability of the tilting action.

[0014] In a more preferred embodiment, both ends of the front tilting beam are rotatably mounted on the front side rod via rotating seats. The rotating seats have mounting ears at both ends and a mounting hole in the middle. A rotating sleeve adapted to the front tilting beam is installed within the mounting hole. Both ends of the rotating seats are fixed to the front side rod via the mounting ears, and the end of the front tilting beam is disposed within the rotating sleeve. The advantages are that the rotating seat design allows the front tilting beam to be stably rotated on the front side rod. The rotating sleeve improves the rotational flexibility of the front tilting beam, and the structural design of the mounting hole and fixing ears ensures the stable installation of the rotating seat, enhancing the stability and reliability of the tilting mechanism.

[0015] As a more preferred embodiment, a pulley is provided at the other end of the forward tilting linkage. The advantage of this design is that the pulley at the end of the forward tilting linkage effectively reduces friction between the linkage and the back plate, lowers wear, and extends the service life of the component. The rolling support of the pulley makes tilting the back plate easier and less strenuous, improving the efficiency and stability of the movement.

[0016] As a more preferred embodiment, the front frame further includes a reinforcing rod located in the middle of the front frame, connected to both the front crossbeam and the front tilting beam, and parallel to the front side rod. The advantage of this is that the reinforcing rod enhances the overall strength and stability of the front frame, particularly providing additional support in the middle section. The connection between the reinforcing rod and the front crossbeam and the front tilting beam further improves the structural rigidity of the front frame, ensuring that it can stably support the bed board assembly during tilting.

[0017] As a more preferred embodiment, the reinforcing rod is connected to the forward-tilting beam via a rotating base. The rotating base includes a snap-fit ​​component and a clamp. The snap-fit ​​component is fitted onto the forward-tilting beam, and the clamp is fitted onto the outside of the snap-fit ​​component. The clamp also has fixing ears on both sides, each with a fixing hole. Screws are passed through these fixing holes to secure the fixing ears to the reinforcing rod. The advantages are that the rotating base design makes the connection between the reinforcing rod and the forward-tilting beam more flexible and stable. The snap-fit ​​component and clamp provide a reliable connection, and the fixing ears and holes facilitate fixing to the connecting rod, improving assembly convenience and connection reliability.

[0018] As a more preferred approach, the backplate is provided with clearance holes to prevent interference between the front drive unit and the backplate during operation. The advantage of this design is that the clearance holes prevent interference between the front drive unit and the backplate during operation, ensuring that the front drive unit can smoothly push the backplate to rotate. This design improves the reliability and smoothness of the operation and extends the service life of the components.

[0019] As a more preferred embodiment, the height-adaptive electric bed also includes several support legs, which are respectively located at the bottom of the support frame. The advantage of this arrangement is that the support legs provide stable support for the entire electric bed, ensuring the bed remains stable during use. The distribution of the support legs at the bottom of the support frame effectively distributes the weight of the bed, improving its stability and safety.

[0020] As described above, the height-adaptive electric bed of this invention has the following beneficial effects: Through the hinged design of the front and rear frames, the bed panel assembly can flexibly switch between the unfolded and folded states. The front and rear elevation supports not only provide stable support for the bed panel assembly but also allow for flexible adjustment of the distance between the bed panel assembly and the support frame during product development. This reduces the need for gap structure verification to meet the requirements of switching between unfolded and folded states, as well as flipping and horizontal posture switching, thus improving the adaptability and flexibility of the bed.

[0021] In summary, the height-adaptive electric bed of this invention, through the setting of the front and rear elevation brackets, enables flexible setting of the gap between the bed board assembly and the support frame during the development stage. This saves the cumbersome production process of structural verification, improves R&D efficiency, and solves the problem of increased R&D costs and development cycle caused by the difficulty in flexibly adjusting the gap between the support frame and the bed board during the development and verification process of existing electric beds. Attached Figure Description

[0022] Figure 1The diagram shown is an exploded view of the height-adaptive electric bed of this invention in its unfolded state.

[0023] Figure 2 Displayed as Figure 1 A magnified view of a portion of region A in the middle;

[0024] Figure 3 The diagram shows the rotating seat of the height-adaptive electric bed of this utility model.

[0025] Figure 4 The diagram shows the rotating seat of the height-adaptive electric bed of this utility model.

[0026] Figure 5 This diagram shows the stowage state of the adaptive height electric bed of this utility model.

[0027] Component designation explanation

[0028] 1 support frame 11 front frame 111 Front crossbeam 112 Front side pole 113 Reinforcing bar 114 Front Elevator Bracket 12 rear rack 121 Rear crossbeam 122 Rear pole 123 Rear Elevator Bracket 124 Rear hinged riser connector 124a Hinged section 124b Fixing part 124c Elevated section 2 Bed board assembly 21 Back panel 211 clearance hole 22 Front seat 23 Lower limb plate 3 Front drive unit 31 Forward tilt drive 32 Forward tilting mechanism 321 Front tilt linkage 321a pulley 322 Front tilting beam 4 Rotating seat 41 Ear installation 42 Rotating sleeve 43 Mounting holes 5 Rotary seat 51 Card connector 52 Hoop 521 Fixing hole 6 outrigger Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0030] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this 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 terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude 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” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0033] like Figures 1 to 5 As shown, this utility model provides an electric bed with adaptive bed board height, comprising:

[0034] Support frame 1, the support frame 1 includes a front frame 11 and a rear frame 12, one end of the front frame 11 is hinged to one end of the rear frame 12, a front drive unit 3 is provided on the front frame 11, and a plurality of front elevation brackets 114 and rear elevation brackets 123 are respectively provided on the front frame 11 and the rear frame 12.

[0035] The bed board assembly 2 includes a backrest 21, a front seat 22, and a lower limb board 23. The front seat 22 is fixed to the rear of the front frame 11 via a front elevation bracket 114. One end of the backrest 21 is hinged to the front end of the front seat 22. The front drive unit 3 is connected to the backrest 21 and can push the backrest 21 to rotate along the end hinged to the front seat 22, changing between a rotating posture and a horizontal posture. In the horizontal posture, the backrest 21 overlaps the front elevation bracket 114 and is horizontal to the front seat 22. The front elevation bracket 114 increases the space required for the front drive unit 3 to rotate. The lower limb board 23 is raised to be flush with the front seat 22 via a rear elevation bracket 123.

[0036] The support frame 1 is folded at the hinge point between the front frame 11 and the rear frame 12, simultaneously causing the bed board assembly 2 mounted on it to fold, switching the height-adaptive electric bed from the unfolded state to the folded state. Figure 1 as well as Figure 5 As shown. The front drive unit 3 with different structures requires different spaces during operation and in the storage state. Therefore, during the product development stage, it is necessary to adjust the distance between the bed board assembly 2 and the support frame 1 multiple times. The height of the back panel 21 and the front seat board 22 can be flexibly changed by the front elevation bracket 114. At the same time, the rear elevation bracket 123 ensures that the lower limb board 23 can also be flexibly adjusted to remain level with the front seat board 22, reducing the workload required for complex structural verification during the product development process.

[0037] To better illustrate the adaptive height electric bed of this invention, the following specific application will be used as an example: The adaptive height electric bed of this invention, through the hinged design of the front frame 11 and the rear frame 12, allows the bed board assembly 2 to flexibly switch between unfolded and folded states. The front elevation bracket 114 and the rear elevation bracket 123 not only provide stable support for the bed board assembly 2 but also allow for flexible adjustment of the distance between the bed board assembly 2 and the support frame 1 during the product development stage. This reduces the need for gap structure verification to meet the requirements of switching between unfolded and folded states, flipping, and horizontal posture switching, thus improving the adaptability and flexibility of the bed. It can be seen that the adaptive height electric bed of this invention, through the front elevation bracket 114 and the rear elevation bracket 123, achieves flexible setting of the gap between the bed board assembly 2 and the support frame 1 during the development stage, saving the cumbersome production process of structural verification, improving R&D efficiency, and solving the problem of increased R&D costs and development cycle caused by the difficulty in flexibly adjusting the gap between the support frame 1 and the bed board during the development and verification process of existing electric beds.

[0038] In some possible embodiments of this utility model, such as Figure 1 As shown, the front frame 11 is a rectangular frame structure formed by a front crossbeam 111 and two front side rods 112, and the rear frame 12 is a rectangular frame structure formed by a rear crossbeam 121 and two rear side rods 122. One end of each of the two front side rods 112 is hinged to one end of the corresponding rear side rod 122. The advantage is that the rectangular frame structure of the front frame 11 and rear frame 12 enhances the overall strength and stability of the support frame 1. The hinged connection between the ends of the front side rods 112 and the rear side rods 122 allows the support frame 1 to fold smoothly, facilitating the storage and unfolding of the bed, while also ensuring the structural stability of the bed during use.

[0039] In some possible embodiments of this utility model, such as Figure 1As shown, the front elevation bracket 114 and the rear elevation bracket 123 are fixed to the front frame 11 and the rear frame 12 by welding. Different welding heights can be selected according to different needs, thereby adjusting the gap between the bed board assembly 2 and the support frame 1. The advantage is that by fixing the front elevation bracket 114 and the rear elevation bracket 123 by welding, different welding heights can be selected as needed, thus flexibly adjusting the gap between the bed board assembly 2 and the support frame 1. This design not only improves the adaptability of the bed but also enhances the connection strength of the elevation brackets, ensuring stable support of the bed board assembly 2.

[0040] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the rear frame 12 also includes two rear hinged raised support members 124. Each rear hinged raised support member includes an integrally formed hinge portion 124a, a fixing portion 124b, and a raised portion 124c. The rear hinged raised support member 124 is fixed to the end of the rear side rod 122 through the fixing portion 124b, and is hinged to the end of the front side rod 112 through the hinge portion 124a. At the same time, the raised portion 124c supports the front part of the lower limb plate 23. The beneficial effect is that the rear hinged raised support member 124 not only realizes the hinge between the front frame 11 and the rear frame 12, but also supports the front part of the lower limb plate 23 through the raised portion 124c, ensuring that the lower limb plate 23 is flush with the front seat plate 22. This integrated design simplifies the structure, improves the stability and reliability of the support, and provides stable support for the lower limb plate 23.

[0041] In some possible embodiments of this utility model, such as Figure 1 As shown, the front drive unit 3 includes a front flipping mechanism 32 and a front flipping drive member 31. The front flipping mechanism 32 includes two front flipping connecting rods 321 and a front flipping beam 322 connected to the front flipping connecting rods 321 at both ends. The two ends of the front flipping beam 322 are rotatably mounted on the front side rod 112, and the other end abuts against the back plate 21. The front flipping drive member 31 is mounted on the front crossbeam 111 and hinged to the front flipping beam 322. The front flipping drive member 31 drives the front flipping beam 322 to rotate, which in turn drives the front flipping connecting rods 321 to rotate. The other end of the front flipping connecting rod lifts or lowers the back plate 21 while sliding along the surface of the back plate 21. Its beneficial effect is that the design of the front drive unit 3 allows the back plate 21 to be flipped smoothly under the push of the front drive unit 3, realizing the switching of different postures. The cooperation between the front tilting link 321 and the front tilting beam 322 allows the back plate 21 to be smoothly lifted or lowered during the tilting process. At the same time, the end of the link slides along the surface of the back plate 21, reducing friction and wear, and improving the smoothness and reliability of the tilting action.

[0042] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 3 As shown, both ends of the front tilting beam 322 are rotatably mounted on the front side rod 112 via rotating seats 4. The rotating seats 4 have mounting ears 41 at both ends and a mounting hole 43 in the middle. A rotating sleeve 42 adapted to the front tilting beam 322 is installed within the mounting hole 43. Both ends of the rotating seats 4 are fixed to the front side rod 112 via the mounting ears 41, and the end of the front tilting beam 322 is located within the rotating sleeve 42. The beneficial effect is that the design of the rotating seats 4 allows the front tilting beam 322 to be stably rotated on the front side rod 112. The rotating sleeve 42 improves the rotational flexibility of the front tilting beam 322, and the structural design of the mounting hole 43 and the mounting ears ensures the stable installation of the rotating seats 4, enhancing the stability and reliability of the tilting mechanism.

[0043] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the middle part of the rotating part protrudes outward from the front rod 112 to leave a certain gap with the front rod 112, so as to facilitate the insertion of the front flip beam 322. Its beneficial effect is that this design improves the ease of assembly, and at the same time provides sufficient space for the rotation of the front flip beam 322, ensuring the smooth operation of the flipping action.

[0044] In some possible embodiments of this utility model, such as Figure 1 As shown, a pulley 321a is provided at the other end of the front tilting link 321. The beneficial effect is that the pulley 321a at the end of the front tilting link 321 effectively reduces the friction between the pulley and the back plate 21, reducing wear and extending the service life of the component. The rolling support of the pulley 321a makes the tilting of the back plate 21 easier and less strenuous, improving the efficiency and stability of the action.

[0045] In some possible embodiments of this utility model, such as Figure 1 As shown, the front frame 11 also includes a reinforcing rod 113, which is located in the middle of the front frame 11 and connected to the front crossbeam 111 and the front tilting beam 322, respectively, and is parallel to the front side rod 112. Its beneficial effect is that the reinforcing rod 113 enhances the overall strength and stability of the front frame 11, especially by providing additional support in the middle of the front frame 11. The connection between the reinforcing rod 113 and the front crossbeam 111 and the front tilting beam 322 further improves the structural rigidity of the front frame 11, ensuring that the front frame 11 can stably support the bed board assembly 2 during tilting.

[0046] In some possible embodiments of this utility model, such as Figure 4 As shown, the reinforcing rod 113 is connected to the front tilting beam 322 via a rotating seat 5. The rotating seat 5 includes a snap-fit ​​component 51 and a clamp 52. The snap-fit ​​component 51 is fitted onto the front tilting beam 322, and the clamp 52 is fitted onto the outside of the snap-fit ​​component 51. The clamp 52 also has fixing ears on both sides, and fixing holes 521 are provided on the fixing ears. Screws are passed through the fixing holes 521 to fix the fixing ears to the reinforcing rod 113. The advantage is that the design of the rotating seat 5 makes the connection between the reinforcing rod 113 and the front tilting beam 322 more flexible and stable. The cooperation of the snap-fit ​​component 51 and the clamp 52 provides a reliable connection method, and the fixing ears and fixing holes 521 facilitate fixing to the connecting rod, improving the convenience of assembly and the reliability of the connection.

[0047] In some possible embodiments of this utility model, such as Figure 1 As shown, the back plate 21 has clearance holes 211 to prevent interference between the front drive unit 3 and the back plate 21 during operation. The beneficial effect is that the clearance holes 211 on the back plate 21 prevent interference between the front drive unit 3 and the back plate 21 during operation, ensuring that the front drive unit 3 can smoothly push the back plate 21 to rotate. This design improves the reliability and smoothness of the operation and extends the service life of the components.

[0048] In some possible embodiments of this utility model, such as Figure 1 As shown, the height-adaptive electric bed also includes several support legs 6, which are respectively disposed at the bottom of the support frame 1. The beneficial effect is that the support legs 6 provide stable support for the entire electric bed, ensuring the bed remains stable during use. The support legs 6, distributed at the bottom of the support frame 1, effectively distribute the weight of the bed, improving its stability and safety.

[0049] As described above, the height-adaptive electric bed of this invention has the following beneficial effects:

[0050] 1. Flexible adjustment and storage:

[0051] Hinged design: The hinged design of the front frame 11 and the rear frame 12 allows the bed board assembly 2 to flexibly switch between the unfolded and folded states, facilitating the folding and unfolding of the bed.

[0052] Elevation brackets: The front elevation bracket 114 and the rear elevation bracket 123 not only provide stable support for the bed board assembly 2, but also allow for flexible adjustment of the distance between the bed board assembly 2 and the support frame 1 during the product development stage, reducing the workload of structural verification and improving R&D efficiency.

[0053] 2. Structural strength and stability:

[0054] Rectangular frame structure: The front frame 11 and the rear frame 12 adopt a rectangular frame structure, which enhances the overall strength and stability of the support frame 1.

[0055] Reinforcing bar 113: The installation of reinforcing bar 113 enhances the overall strength and stability of the front frame 11, especially by providing additional support in the middle of the front frame 11, thereby improving the structural rigidity of the front frame 11.

[0056] 3. Easy installation and maintenance:

[0057] Welding method: The front elevation bracket 114 and the rear elevation bracket 123 are fixed by welding. Different welding heights can be selected as needed to flexibly adjust the gap between the bed board assembly 2 and the support frame 1, while also enhancing the connection strength.

[0058] Pulley 321a design: The pulley 321a design at the end of the front flipping link 321 effectively reduces the friction between the pulley and the back plate 21, reduces wear, extends the service life of the component, and improves the smoothness and reliability of the flipping action.

[0059] 4. Multifunctional and integrated design:

[0060] Rear hinged raised connector 124: The rear hinged raised connector 124 not only realizes the hinge between the front frame 11 and the rear frame 12, but also supports the front part of the lower limb plate 23 through the raised part 124c, ensuring that the lower limb plate 23 is flush with the front seat plate 22, simplifying the structure and improving the stability and reliability of the support.

[0061] The design of the clearance hole 211 on the back plate 21 avoids interference between the front drive unit 3 and the back plate 21 during operation, ensuring that the front drive unit 3 can smoothly push the back plate 21 to flip, thus improving the reliability and smoothness of the operation.

[0062] 5. Application scenario adaptation:

[0063] Support Leg 6 Configuration: The support leg 6 configuration provides stable support for the entire electric bed, ensuring that the bed remains stable during use, reasonably distributing the weight of the bed, and improving the stability and safety of the bed.

[0064] This utility model's height-adaptive electric bed achieves flexible switching between the unfolded and stowed states of the bed board assembly 2 through the hinged design of the front frame 11 and rear frame 12, and the setting of the front elevation bracket 114 and rear elevation bracket 123. Its core advantage lies in solving the problem of difficulty in adjusting the gap between the support frame 1 and the bed board during the development and verification process of existing electric beds through the flexible adjustment of the elevation brackets, thus improving the adaptability and flexibility of the bed. The design of the reinforcing rod 113 and the rectangular frame structure enhances the overall strength and stability, while the setting of the pulley 321a and the clearance hole 211 improves the smoothness and reliability of the flipping action. The multi-functional design of the rear hinged elevation connector 124 simplifies the structure and improves the stability of the support. The setting of the support legs 6 further enhances the stability and safety of the bed. Overall, this utility model provides an efficient, stable, and user-friendly height-adaptive electric bed solution.

[0065] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0066] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A height-adaptive electric bed, characterized in that, include: Support frame (1), the support frame (1) includes a front frame (11) and a rear frame (12), one end of the front frame (11) is hinged to one end of the rear frame (12), a front drive unit (3) is provided on the front frame (11), and a plurality of front elevation brackets (114) and rear elevation brackets (123) are respectively provided on the front frame (11) and the rear frame (12). The bed board assembly (2) includes a backrest (21), a front seat board (22), and a lower limb board (23). The front seat board (22) is fixed to the rear of the front frame (11) by a front elevation bracket (114). One end of the backrest (21) is hinged to the front end of the front seat board (22). The front drive unit (3) is connected to the backrest (21) and can push the backrest (21) to flip along the end hinged to the front seat board (22), changing between a flipped posture and a horizontal posture. In the horizontal posture, the backrest (21) overlaps the front elevation bracket (114) and is horizontal to the front seat board (22). The front elevation bracket (114) increases the space required for the flipping action of the front drive unit (3). The lower limb board (23) is raised to be flush with the front seat board (22) by a rear elevation bracket (123). Fold the support frame (1) at the hinge between the front frame (11) and the rear frame (12), and at the same time, fold the bed board assembly (2) set on it, so that the height-adaptive electric bed can be switched from the unfolded state to the stored state.

2. The height-adaptive electric bed according to claim 1, characterized in that: The front frame (11) is a rectangular frame structure formed by a front crossbeam (111) and two front side rods (112), and the rear frame (12) is a rectangular frame structure formed by a rear crossbeam (121) and two rear side rods (122). One end of each of the two front side rods (112) is hinged to one end of the corresponding rear side rod (122).

3. The height-adaptive electric bed according to claim 2, characterized in that: The rear frame (12) also includes two rear hinged raised connectors (124). The rear hinged raised connectors include an integrally formed hinge part (124a), a fixing part (124b), and a raised part (124c). The rear hinged raised connectors (124) are fixed to the end of the rear side rod (122) through the fixing part (124b) and are hinged to the end of the front side rod (112) through the hinge part (124a). At the same time, the raised part (124c) supports the front part of the lower limb plate (23).

4. The height-adaptive electric bed according to claim 2, characterized in that: The front drive unit (3) includes a front flipping mechanism (32) and a front flipping drive member (31). The front flipping mechanism (32) includes two front flipping connecting rods (321) and a front flipping beam (322) with both ends connected to the front flipping connecting rods (321). The two ends of the front flipping beam (322) are rotatably mounted on the front side rod (112), and the other end abuts against the back plate (21). The front flipping drive member (31) is mounted on the front crossbeam (111) and hinged to the front flipping beam (322). The front flipping drive member (31) drives the front flipping beam (322) to rotate, thereby driving the front flipping connecting rods (321) to rotate. The other end of the front flipping connecting rod lifts or lowers the back plate (21) while sliding along the surface of the back plate (21).

5. The height-adaptive electric bed according to claim 4, characterized in that: The two ends of the front tilting beam (322) are respectively rotatably mounted on the front side rod (112) via rotating seats (4). The two ends of the rotating seats (4) are provided with mounting ears (41). The middle part of the rotating seats (4) is provided with mounting holes (43). A rotating sleeve (42) adapted to the front tilting beam (322) is provided in the mounting holes (43). The two ends of the rotating seats (4) are fixed to the front side rod (112) via the mounting ears (41). The end of the front tilting beam (322) is located in the rotating sleeve (42).

6. The height-adaptive electric bed according to claim 4, characterized in that: The other end of the forward tilting link (321) is provided with a pulley (321a).

7. The height-adaptive electric bed according to claim 4, characterized in that: The front frame (11) also includes a reinforcing rod (113), which is located in the middle of the front frame (11), connected to the front crossbeam (111) and the front tilting beam (322) respectively, and parallel to the front side rod (112).

8. The height-adaptive electric bed according to claim 7, characterized in that: The reinforcing rod (113) is connected to the front flip beam (322) via a rotating seat (5). The rotating seat (5) includes a snap-fit ​​component (51) and a clamp (52). The snap-fit ​​component (51) is fitted onto the front flip beam (322), and the clamp (52) is fitted onto the outside of the snap-fit ​​component (51). Fixing ears are also provided on both sides of the clamp (52). Fixing holes (521) are provided on the fixing ears. The fixing ears are fixed to the reinforcing rod (113) by passing screws through the fixing holes (521).

9. The height-adaptive electric bed according to claim 1, characterized in that: The back plate (21) is provided with a clearance hole (211) to avoid interference between the front drive unit (3) and the back plate (21) during operation.

10. The height-adaptive electric bed according to claim 1, characterized in that: The height-adaptive electric bed also includes several legs (6), which are respectively located at the bottom of the support frame (1).

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