A lifting electric bed frame and an electric bed applying the same

Abstract

The present application relates to a kind of bedstead and electric bed, especially, a kind of lifting electric bed bedstead and the electric bed of application this bedstead.A kind of lifting electric bed bedstead, including first bed frame, linkage frame, push rod motor, first lifting mechanism and second lifting mechanism;The first bed frame is quadrilateral frame, including first longitudinal frame, second longitudinal frame, first cross frame and second cross frame;The first longitudinal frame and the second longitudinal frame are track structure;The linkage frame includes third longitudinal frame, fourth longitudinal frame, third cross frame and fourth cross frame;The third longitudinal frame, the fourth longitudinal frame are equipped with pulley matched with the track structure, for the linkage frame in track structure back and forth sliding;The lifting mechanism of the present application adopts three-layer frame structure and linkage, realizes the vertical lifting of bed body, and frame structure can provide enough support force to the head and tail of bed body, so that electric bed has enough stability after lifting, better experience for user.

Description

Technical Field

[0001] This invention relates to a bed frame and an electric bed, and more particularly to a liftable electric bed frame and an electric bed using the same bed frame. Background Technology

[0002] Existing electric beds allow users to adjust their back and leg positions for increased comfort, and also allow for height adjustment of the bed board. As users increasingly value quality of life, height-adjustable electric beds are gradually becoming more common in homes, and more and more functions are being added to enhance convenience.

[0003] While existing electric lifting beds also have vertical lifting functions, most of them cannot provide sufficient support at the head and leg positions due to their lifting structure. This makes it difficult for the electric bed to remain stable after being raised, resulting in a certain degree of wobbling and causing discomfort to the user. In addition, many electric lifting beds expose the lifting mechanism components to the user's view, which is not aesthetically pleasing. Summary of the Invention

[0004] The purpose of this invention is to solve the above problems and provide a bed frame structure that maintains high stability after raising and lowering, as well as an aesthetically pleasing electric lifting bed based on this structure.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A lifting electric bed frame includes a first bed frame, a linkage frame, a push rod motor, a first lifting mechanism, and a second lifting mechanism;

[0007] The first bed frame is a quadrilateral frame, including a first vertical frame, a second vertical frame, a first horizontal frame, and a second horizontal frame; the first vertical frame and the second vertical frame are track structures;

[0008] The linkage frame includes a third vertical frame, a fourth vertical frame, a third horizontal frame, and a fourth horizontal frame; the third vertical frame and the fourth vertical frame are provided with pulleys that match the track structure, allowing the linkage frame to slide back and forth within the track structure;

[0009] The first bed frame is provided with a first crossbar and a second crossbar. The two sides of the first crossbar are fixedly connected to the first longitudinal frame and the second longitudinal frame, respectively. The two sides of the second crossbar are fixedly connected to the first longitudinal frame and the second longitudinal frame, respectively. The first crossbar is located in the front half of the first bed frame, closer to the first crossbar. The second crossbar is located in the rear half of the first bed frame, closer to the second crossbar.

[0010] The third horizontal frame is located between the first horizontal frame and the first horizontal bar, and slides back and forth within this limit;

[0011] The fourth horizontal frame is located between the first horizontal bar and the second horizontal bar, and slides back and forth within the limit of this frame;

[0012] The first lifting mechanism includes a first base and a pair of first push rods. The first base includes a first connecting rod and a second connecting rod arranged symmetrically. The second connecting rod is horizontally connected to the first connecting rod to form an I-shape. One end of the first push rod is hinged to the middle area of ​​the first connecting rod. The other end of the first push rod is hinged to the first crossbar. One end of the first connecting rod is hinged to the third cross frame.

[0013] The second lifting mechanism includes a second base and a pair of second push rods. The second base includes a third connecting rod and a fourth connecting rod arranged symmetrically. The fourth connecting rod is horizontally connected to the third connecting rod to form an I-shape. One end of the second push rod is hinged to the middle area of ​​the third connecting rod. The other end of the second push rod is hinged to the second crossbar. One end of the second connecting rod is hinged to the fourth crossbar.

[0014] One end of the push rod of the push rod motor is connected to the first crossbar, and the other end of the push rod motor is connected to the fourth crossbar. When the push rod motor operates, it pushes the linkage frame to slide towards the second crossbar with the first crossbar as a reference. At the same time, the linkage frame drives the first lifting mechanism and the second lifting mechanism to rise and fall vertically.

[0015] Furthermore, the third longitudinal frame includes a first upper connecting longitudinal rod and a first lower connecting longitudinal rod that overlap vertically; the fourth longitudinal frame includes a second upper connecting longitudinal rod and a second lower connecting longitudinal rod that overlap vertically; the length of the first upper connecting longitudinal rod is greater than that of the first lower connecting longitudinal rod; the length of the second upper connecting longitudinal rod is greater than that of the second lower connecting longitudinal rod; the third horizontal frame is fixedly connected to the first upper connecting longitudinal rod and the second upper connecting longitudinal rod, and the fourth horizontal frame is fixedly connected to the first lower connecting longitudinal rod and the second lower connecting longitudinal rod; the outer sides of the ends of the first upper connecting longitudinal rod and the second upper connecting longitudinal rod are provided with downwardly extending pulley fixing blocks, and pulleys are provided on the pulley fixing blocks, so that the front and rear pulleys of the linkage frame are on the same horizontal line.

[0016] Furthermore, it also includes a second bed frame, which is a quadrilateral frame comprising a fifth horizontal frame, a sixth horizontal frame, a fifth vertical frame, and a sixth vertical frame; the front half of the second bed frame is provided with a first connecting arch, and the rear half is provided with a second connecting arch; the first connecting arch and the second connecting arch are respectively inverted "U" shapes; and the vertical parts are fixedly connected to the top of the fifth and sixth vertical frames; connecting ears are provided on both sides of the horizontal parts of the first connecting arch and the second connecting arch, respectively, for connecting to the other end of the first connecting rod and the third connecting rod; this allows the first lifting mechanism and the second lifting mechanism to drive the second bed frame to move vertically and synchronously.

[0017] Furthermore, a reinforcing frame is provided in the middle of the second bed frame, and a first support plate extending upward is provided on the fifth or sixth horizontal frame; the reinforcing frame, the first connecting arch, the second connecting arch and the first support plate are at the same height.

[0018] Furthermore, the outer side of the second bed frame is provided with mounting holes for mounting the edging.

[0019] Furthermore, the frame area of ​​the second bed frame is less than or equal to the frame area of ​​the first bed frame. When the first lifting mechanism and the second lifting mechanism are not in operation, the second bed frame can be placed on the first bed frame.

[0020] Furthermore, each of the first horizontal frame, the second horizontal frame, the first vertical frame, and the second vertical frame is provided with an upwardly extending second support plate; the second support plate is L-shaped, and the height of the vertical part is higher than the height of the second bed frame but lower than the height of the second bed frame after it is raised.

[0021] A lifting electric bed includes any one of the lifting electric bed frames described above, a drive device, a bed board assembly, a first edge and a second edge; the bed board assembly is composed of bed boards that are hinged together and is disposed on the second bed frame; the drive device is disposed inside the second bed frame and is used to drive the bed board assembly to rotate; the first edge surrounds and covers the outside of the first bed frame, and the second edge surrounds and covers the outside of the second bed frame.

[0022] Furthermore, the cross-sectional area of ​​the first perimeter is greater than the cross-sectional area of ​​the second perimeter.

[0023] Furthermore, the inner filling material of the first and second perimeter edges is rigid polyurethane foam.

[0024] Furthermore, the second bed frame is a triangular frame, comprising a fifth horizontal frame, a fifth vertical frame, and a sixth vertical frame, forming a U-shape; the second rim matches the shape of the second bed frame; the inner sides of the fifth and sixth vertical frames are rail structures; a drawer structure is provided in the gaps of the second bed frame, the drawer structure matching the inner sides of the fifth and sixth vertical frames; it can slide back and forth along the rail direction.

[0025] Furthermore, one side of the tail of the first perimeter adopts an openable door structure, and the door structure is equipped with a door handle.

[0026] The beneficial effects of this plan are:

[0027] 1. The lifting mechanism of the present invention adopts a three-layer frame structure linked with the lifting mechanism to realize the vertical lifting of the bed. The frame structure can provide sufficient support for the head and legs of the bed, so that the electric bed has sufficient stability after being raised and will not produce a wobbling feeling, giving users a better experience.

[0028] 2. By using first and second bed frames of different sizes, as well as the surrounding edges of the frames, the electric bed can provide users with a simple and flat visual effect whether it is raised or lowered, thereby enhancing the overall aesthetics of the electric bed. Attached Figure Description

[0029] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0030] Explanation of reference numerals in the attached figures:

[0031] Figure 1 This is a schematic diagram of the structure of the first bed frame in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the linkage frame in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the second bed frame in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the first lifting mechanism and the second lifting mechanism in an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the structure of the first push rod and the second push rod in an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure after the first bed frame and the linkage frame are combined in an embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the operation of the linkage frame and lifting mechanism in an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of the first bed frame, the linkage frame, and the second bed frame combined in an embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram of the structure of the second bed frame after it has been raised in an embodiment of the present invention;

[0040] Figure 10 This is a schematic diagram of the structure of the electric lifting bed in an embodiment of the present invention when it is not raised;

[0041] Figure 11 This is a schematic diagram of the structure of the lifting electric bed after it is raised in an embodiment of the present invention;

[0042] Figure 12 This is a schematic diagram of the structure of the bed frame assembly plus the bed board assembly in an embodiment of the present invention;

[0043] Figure 13 This is a schematic diagram of the drawer structure of the second bed frame in an embodiment of the present invention;

[0044] Figure 14 This is a schematic diagram of the structure of the door-to-door structure of the first perimeter in an embodiment of the present invention;

[0045] In the diagram: 1. First bed frame; 11. First longitudinal frame; 12. Second longitudinal frame; 13. First transverse frame; 14. Second transverse frame; 15. First transverse bar; 16. Second transverse bar; 2. Linkage frame; 21. Third longitudinal frame; 211. First upper connecting longitudinal bar; 212. First lower connecting longitudinal bar; 22. Fourth longitudinal frame; 221. Second upper connecting longitudinal bar; 222. Second lower connecting longitudinal bar; 23. Third transverse frame; 24. Fourth transverse frame; 25. Pulley fixing block; 3. Push rod motor; 4. First lifting mechanism; 41. First base; 411. First connecting rod; 412. Second connecting rod; 42. First push rod; 5. Second lifting mechanism; 51. Second base; 511. Third connecting rod; 512. Fourth connecting rod; 52. Second push rod; 6. Second bed frame; 601. Mounting hole; 61. Fifth horizontal frame; 62. Sixth horizontal frame; 63. Fifth vertical frame; 64. Sixth vertical frame; 65. First connecting arch; 66. Second connecting arch; 67. Connecting lug; 68. Reinforcing frame; 69. First support plate; 691. Second support plate; 7. Bed board assembly; 71. First perimeter; 72. Second perimeter; 8. Drawer structure; 9. Door structure. Detailed Implementation

[0046] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0047] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0048] like Figure 6 As shown, a lifting electric bed frame includes a first bed frame 1, a linkage frame 2, a push rod motor 3, a first lifting mechanism 4, and a second lifting mechanism 5; as Figure 1 As shown, the first bed frame 1 is a quadrilateral frame, including a first vertical frame 11, a second vertical frame 12, a first horizontal frame 13, and a second horizontal frame 14; the first vertical frame 11 and the second vertical frame 12 are track structures; as shown... Figure 2 As shown, the linkage frame 2 includes a third vertical frame 21, a fourth vertical frame 22, a third horizontal frame 23, and a fourth horizontal frame 24; the third vertical frame 21 and the fourth vertical frame 22 are provided with pulleys that match the track structure, allowing the linkage frame 2 to slide back and forth within the track structure; as shown Figure 1 As shown, the first bed frame 1 is provided with a first crossbar 15 and a second crossbar 16. The two sides of the first crossbar 15 are fixedly connected to the first longitudinal frame 11 and the second longitudinal frame 12, respectively; the two sides of the second crossbar 16 are fixedly connected to the first longitudinal frame 11 and the second longitudinal frame 12, respectively; the first crossbar 15 is located in the front half of the first bed frame 1, closer to the first crossbar 13; the second crossbar 16 is located in the rear half of the first bed frame 1, closer to the second crossbar 14; as shown... Figure 6 As shown, the third horizontal frame 23 is located between the first horizontal frame 13 and the first horizontal bar 15, and slides back and forth within this limitation; the fourth horizontal frame 24 is located between the first horizontal bar 15 and the second horizontal bar 16, and slides back and forth within this limitation; as... Figure 4 , 5As shown, the first lifting mechanism 4 includes a first base and a pair of first push rods. The first base includes a first connecting rod and a second connecting rod arranged symmetrically. The second connecting rod is horizontally connected to the first connecting rod, forming an I-shape. One end of the first push rod is hinged to the middle area of ​​the first connecting rod. The other end of the first push rod is hinged to the first crossbar 15. One end of the first connecting rod is hinged to the third crossbar 23. The second lifting mechanism 5 includes a second base 51 and a pair of second push rods 52. The second base 51 includes a third connecting rod 511 and a fourth connecting rod 512 arranged symmetrically. The fourth connecting rod is horizontally connected to the third connecting rod, forming an I-shape. One end of the second push rod 52 is hinged to the middle area of ​​the third connecting rod 511. The other end of the second push rod 52 is hinged to the second crossbar 16. One end of the second connecting rod is hinged to the fourth crossbar 24. In this embodiment, both the first lifting mechanism 4 and the second lifting mechanism 5 are V-shaped when viewed from the side, and each pair of push rods is connected by a transverse reinforcing rib in the middle, making the first push rod and the second push rod 52 structurally stronger and providing a more stable force. One end of the first base and the second base 51 are respectively connected to the sliding linkage frame 2, and one end of the first push rod and the second push rod 52 are respectively connected to the fixed first crossbar 15 and the second crossbar 16. By pushing the linkage frame 2 towards the second crossbar 14, the linkage frame 2 compresses the first lifting mechanism 4 and the second lifting mechanism 5. Under the combined action of the first crossbar 15, the second crossbar 16 and the push rod, the ends of the first base and the second base move vertically upward. The lifting bed frame uses the first bed frame 1 as a foundation and completes the lifting movement by the interaction of the linkage frame 2 and the lifting mechanism. During the entire lifting process, the bed frame and the lifting mechanism are subjected to uniform force, making the bed frame more stable during lifting.

[0049] like Figure 7As shown, one end of the push rod of the push rod motor 3 is connected to the first crossbar 15, and the other end of the push rod motor is connected to the fourth crossbar 24. When the push rod motor 3 operates, it pushes the linkage frame 2 towards the second crossbar 14 with the first crossbar 15 as a reference. At the same time, the linkage frame 2 drives the first lifting mechanism 4 and the second lifting mechanism 5 to move vertically. In this embodiment, in order to better provide electric thrust, symmetrically arranged push rod motors 3 are used. Using the push rod motor 3, the operation of the push rod motor 3 can be automatically started by remote control or a button. Under the action of the push rod motor 3, the linkage frame 2 is pushed forward towards the second crossbar 14, thereby enabling the entire electric bed to complete the lifting movement. This facilitates user operation, and the push rod motor 3 can provide more stable thrust, ensuring the stability of the electric bed during lifting.

[0050] like Figure 2 As shown, further, the third vertical frame 21 includes a first upper connecting vertical rod 211 and a first lower connecting vertical rod 212 that overlap vertically; the fourth vertical frame 22 includes a second upper connecting vertical rod 221 and a second lower connecting vertical rod 222 that overlap vertically; the length of the first upper connecting vertical rod 211 is greater than the length of the first lower connecting vertical rod 212; the length of the second upper connecting vertical rod 221 is greater than the length of the second lower connecting vertical rod 222; the third horizontal frame 23 is fixedly connected to the first upper connecting vertical rod 211 and the second upper connecting vertical rod 221, and the fourth horizontal frame 24 is fixedly connected to the first lower connecting vertical rod 212 and the second lower connecting vertical rod 222; the outer sides of the ends of the first upper connecting vertical rod 211 and the second upper connecting vertical rod 221 are provided with downwardly extending pulley fixing blocks 25, and pulleys are provided on the pulley fixing blocks 25 so that the front and rear pulleys of the linkage frame 2 are on the same horizontal line. In this embodiment, the vertical rod of the linkage frame 2 is divided into upper and lower ends. When the linkage frame 2 slides back and forth, the upper and lower vertical rods will not interfere with or touch the first horizontal rod 15. Furthermore, a pulley fixing block 25 extending downward is set on the upper connecting vertical rod, so that the pulleys at both ends of the linkage frame 2 are at the same height. This allows the linkage frame 2 to slide freely and without interference within the first bed frame.

[0051] like Figure 3As shown, the system further includes a second bed frame 6, which is a quadrilateral frame comprising a fifth horizontal frame 61, a sixth horizontal frame 62, a fifth vertical frame 63, and a sixth vertical frame 64. The front half of the second bed frame 6 has a first connecting arch 65, and the rear half has a second connecting arch 66. The first connecting arch 65 and the second connecting arch 66 are respectively inverted "U" shapes, and their vertical portions are fixedly connected above the fifth vertical frame 63 and the sixth vertical frame 64. Connecting ears 67 are provided on both sides of the horizontal portions of the first connecting arch 65 and the second connecting arch 66, and these connecting ears 67 are used to connect to the other end of the first connecting rod and the third connecting rod 511, enabling the first lifting mechanism 4 and the second lifting mechanism 5 to synchronously and vertically lift the second bed frame 6. In this embodiment, the second bed frame 6 supports the bed board assembly 7 and the drive device for flipping the bed board. It is connected to the front and rear lifting mechanisms via connecting arches. The installation position of the connecting arches matches the installation position of the lifting mechanisms, allowing the second bed frame to rise or fall vertically, thus enabling the entire bed to rise and fall vertically. The frame structure of the second bed frame provides sufficient support for the head and legs of the bed, ensuring sufficient stability after the electric bed is raised and providing a better user experience.

[0052] Furthermore, the second bed frame 6 has a reinforcing frame 68 in the middle, and a first support plate 69 extending upwards is provided on the fifth horizontal frame 61 or the sixth horizontal frame 62; the reinforcing frame 68, the first connecting arch 65, the second connecting arch 66, and the first support plate 69 have the same height. In this embodiment, the reinforcing frame 68 adopts a platform surface support structure, fixed on both sides to the fifth and sixth vertical frames, for supporting the bed board assembly 7; the upper sides of the first connecting arch 65 and the second connecting arch 66 can also be used to support the bed board assembly 7, and the first support plate 69 also serves to support the bed board assembly 7; the number of first support plates 69 can be increased according to specific circumstances to provide better support. The first support plate 69, the reinforcing frame 68, and the connecting arch have the same height, which allows the surrounding structure set on its outer side to also have a uniform height, surrounding the drive device and internal components of the frame structure inside the electric bed; this arrangement not only conceals the internal parts, but also makes the outer surrounding edge neat and flat, making the electric bed more aesthetically pleasing.

[0053] Furthermore, the outer side of the second bed frame 6 is provided with mounting holes 601 for installing the edge trim. The second edge trim outside the second bed frame 6 is connected to the second bed frame 6 through the mounting holes 601. In this embodiment, several mounting holes are provided around the second bed frame, the specific number being sufficient to securely fix the edge trim. This is simpler than fixing the edge trim through external mounting supports; another advantage is that, since the first bed frame 1 and the second bed frame 6 are nested, adding a support for installing the edge trim to the second bed frame 6 would increase the cross-sectional area of ​​the second bed frame 6, making it easier for the second bed frame 6 to interfere with or touch the edge trim of the first bed frame when stacked on top of the first bed frame 1.

[0054] like Figure 8 As shown, further, the frame area of ​​the second bed frame is less than or equal to the frame area of ​​the first frame. When the first lifting mechanism 4 and the second lifting mechanism 5 are not in operation, the second bed frame 6 is superimposed on the first bed frame 1 or embedded in the first bed frame 1. In this embodiment, the second bed frame 6 can be embedded in the first bed frame 1. When the electric bed does not need to be raised, the second bed frame 6 remains within the perimeter of the first bed frame 1, and the user will not see the second bed frame 6, providing a neater and simpler appearance for the electric bed.

[0055] like Figure 1 As shown, furthermore, the first horizontal frame 13, the second horizontal frame 14, the first vertical frame 11, and the second vertical frame 12 are each provided with an upwardly extending second support plate 691; the second support plate 691 is L-shaped, and the height of its vertical portion is higher than the height of the second bed frame 6, such as... Figure 9 As shown, the height is lower than that of the second bed frame 6 after it is raised. In this embodiment, the second support plate 691 can not only be used to install the surrounding structure, but its height also allows the second bed frame 6 to be embedded in the second support plate 691 set around the perimeter. When the bed is not raised, the second bed frame 6 can be covered by the surrounding edge of the first bed frame 1 and is not seen by the user; both of these features ensure that the electric bed provides an aesthetically pleasing appearance when it is raised or lowered.

[0056] like Figure 10As shown in Figure 12, further, a lifting electric bed includes any of the above-described lifting electric bed frames, a drive device, a bed board assembly 7, a first perimeter 71, and a second perimeter 72; the bed board assembly 7 is composed of mutually hinged bed boards and is disposed on the second bed frame 6; the drive device (not shown in the figure) is disposed inside the second bed frame 6 and is used to drive the bed board assembly 7 to rotate; the first perimeter 71 surrounds and covers the outside of the first bed frame 1, and the second perimeter 72 surrounds and covers the outside of the second bed frame. In the first embodiment of the lifting electric bed, the electric bed uses a frame to support the bed board assembly, so that when it is raised or lowered, there will be no swaying problem at one end of the bed due to insufficient support. In addition, the perimeter structure covering the bed can conceal the irregularly arranged metal components inside the electric bed, thereby improving the aesthetics of the electric bed.

[0057] like Figure 11 As shown, further, the cross-sectional area of ​​the first perimeter 71 is larger than the cross-sectional area of ​​the second perimeter 72. In this embodiment, the first perimeter 71 is fitted to the size of the first bed frame 1, and the second perimeter 72 is fitted to the size of the second bed frame 6; the outer edge of the second perimeter 72 is smaller than the inner edge of the first perimeter, so that when the electric bed is lowered, the first perimeter 71 can cover the second perimeter 72; when the electric bed is raised, it provides the appearance effect of a double perimeter, giving the electric bed a better appearance.

[0058] Furthermore, the inner filling material of the first edge 71 and the second edge 72 is rigid polyurethane foam. In this embodiment, since the structure of the first edge 71 and the second edge 72 not only needs to effectively support the bed board assembly 7, but also needs to maintain a certain degree of elasticity to prevent the user's body parts from being trapped between the bed board assembly 7 and the edge, thereby causing the risk of pinching or impact injury; therefore, rigid polyurethane foam not only maintains a certain degree of hardness, but also has a certain degree of elasticity, and its use as filling material in the edge of the electric bed has an unexpected effect.

[0059] like Figure 13As shown, the second bed frame 6 is further a triangular frame, comprising a fifth horizontal frame 61, a fifth vertical frame 63, and a sixth vertical frame 64, forming a U-shape; the second perimeter 72 matches the shape of the second bed frame 6; as the second electric bed embodiment of this case, the frame at the rear of the second bed frame 6 is removed; the inner sides of the fifth vertical frame 63 and the sixth vertical frame 64 are track structures; a drawer structure 8 is provided in the gap of the second bed frame 6, the drawer structure 8 matching the inner sides of the fifth vertical frame 63 and the sixth vertical frame 64; it can slide back and forth along the track direction. In this embodiment, a drawer structure 8 is provided at the rear of the bed body. When the drawer is closed, it can fit with the second perimeter 72 to form a complete perimeter appearance. When the second bed frame 6 is raised, the drawer structure 8 can be pulled out for storage, so that the bed can not only meet the lifting and lowering requirements but also provide sufficient support and storage functions.

[0060] like Figure 14 As shown, furthermore, the tail side of the first perimeter 71 adopts an openable door structure 9, and the door structure 9 is provided with a door handle. In this embodiment, the first perimeter 71 adopts a tail-openable door structure 9, that is, at the second horizontal frame. The door structure 9 can be opened when the second bed frame 6 is not raised, thereby exposing the drawer structure 8 for the user's convenience.

[0061] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0062] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope.

Claims

1. A lifting electric bed frame, characterized in that, It includes a first bed frame, a linkage frame, a push rod motor, a first lifting mechanism, and a second lifting mechanism; The first bed frame is a quadrilateral frame, including a first vertical frame, a second vertical frame, a first horizontal frame, and a second horizontal frame; the first vertical frame and the second vertical frame are track structures; The linkage frame includes a third vertical frame, a fourth vertical frame, a third horizontal frame, and a fourth horizontal frame; the third vertical frame and the fourth vertical frame are provided with pulleys that match the track structure, allowing the linkage frame to slide back and forth within the track structure; The first bed frame is provided with a first crossbar and a second crossbar. The two sides of the first crossbar are fixedly connected to the first longitudinal frame and the second longitudinal frame, respectively. The two sides of the second crossbar are fixedly connected to the first longitudinal frame and the second longitudinal frame, respectively. The first crossbar is located in the front half of the first bed frame, closer to the first crossbar. The second crossbar is located in the rear half of the first bed frame, closer to the second crossbar. The third horizontal frame is located between the first horizontal frame and the first horizontal bar, and slides back and forth within this limit; The fourth horizontal frame is located between the first horizontal bar and the second horizontal bar, and slides back and forth within the limit of this frame; The first lifting mechanism includes a first base and a pair of first push rods. The first base includes a first connecting rod and a second connecting rod arranged symmetrically. The second connecting rod is horizontally connected to the first connecting rod to form an I-shape. One end of the first push rod is hinged to the middle area of ​​the first connecting rod. The other end of the first push rod is hinged to the first crossbar. One end of the first connecting rod is hinged to the third cross frame. The second lifting mechanism includes a second base and a pair of second push rods. The second base includes a third connecting rod and a fourth connecting rod arranged symmetrically. The fourth connecting rod is horizontally connected to the third connecting rod to form an I-shape. One end of the second push rod is hinged to the middle area of ​​the third connecting rod. The other end of the second push rod is hinged to the second crossbar. One end of the second connecting rod is hinged to the fourth crossbar. One end of the push rod of the push rod motor is connected to the first crossbar, and the other end of the push rod motor is connected to the fourth cross frame. When the push rod motor operates, it pushes the linkage frame to slide towards the second cross frame with the first crossbar as a reference. At the same time, the linkage frame drives the first lifting mechanism and the second lifting mechanism to rise and fall vertically. The third vertical frame includes a first upper connecting vertical rod and a first lower connecting vertical rod that overlap vertically; the fourth vertical frame includes a second upper connecting vertical rod and a second lower connecting vertical rod that overlap vertically; the length of the first upper connecting vertical rod is greater than that of the first lower connecting vertical rod; the length of the second upper connecting vertical rod is greater than that of the second lower connecting vertical rod; the third horizontal frame is fixedly connected to the first upper connecting vertical rod and the second upper connecting vertical rod, and the fourth horizontal frame is fixedly connected to the first lower connecting vertical rod and the second lower connecting vertical rod; the outer sides of the ends of the first upper connecting vertical rod and the second upper connecting vertical rod are provided with downwardly extending pulley fixing blocks, and pulleys are provided on the pulley fixing blocks so that the front and rear pulleys of the linkage frame are on the same horizontal line; It also includes a second bed frame, which is a quadrilateral frame comprising a fifth horizontal frame, a sixth horizontal frame, a fifth vertical frame, and a sixth vertical frame. The front half of the second bed frame has a first connecting arch, and the rear half has a second connecting arch. The first and second connecting arches are respectively inverted "U" shapes. The vertical parts are fixedly connected to the top of the fifth and sixth vertical frames. Connecting ears are provided on both sides of the horizontal parts of the first and second connecting arches, and the connecting ears are used to connect to the other end of the first and third connecting rods. This allows the first and second lifting mechanisms to drive the second bed frame to move vertically and synchronously.

2. The lifting electric bed frame according to claim 1, characterized in that, The second bed frame has a reinforcing frame in the middle, and the fifth or sixth horizontal frame has a first support plate extending upward; the reinforcing frame, the first connecting arch, the second connecting arch and the first support plate have the same height.

3. The lifting electric bed frame according to claim 2, characterized in that, The second bed frame has mounting holes on its outer side for mounting the edging.

4. The lifting electric bed frame according to claim 2, characterized in that, The frame area of ​​the second bed frame is less than or equal to the frame area of ​​the first bed frame. When the first lifting mechanism and the second lifting mechanism are not in operation, the second bed frame can be placed on the first bed frame.

5. A lifting electric bed frame according to claim 4, characterized in that, Each of the first horizontal frame, the second horizontal frame, the first vertical frame, and the second vertical frame is provided with an upwardly extending second support plate; the second support plate is L-shaped, and the height of the vertical part is higher than the height of the second bed frame but lower than the height of the second bed frame after it is raised.

6. A lifting electric bed, characterized in that, The invention includes a lifting electric bed frame as described in any one of claims 1 to 5, a drive device, a bed board assembly, a first side panel, and a second side panel; the bed board assembly is composed of bed boards that are hinged together and is disposed on the second bed frame; the drive device is disposed within the second bed frame and is used to drive the bed board assembly to rotate. The first edge surrounds and covers the outside of the first bed frame, and the second edge surrounds and covers the outside of the second bed frame.

7. A lifting electric bed according to claim 6, characterized in that, The cross-sectional area of ​​the first perimeter is greater than the cross-sectional area of ​​the second perimeter.

8. A lifting electric bed according to claim 7, characterized in that, The inner filling material of the first and second edging is rigid polyurethane foam.

9. A lifting electric bed according to claim 6, characterized in that, The second bed frame is a triangular frame, comprising a fifth horizontal frame, a fifth vertical frame, and a sixth vertical frame, forming a U-shape; the second rim matches the shape of the second bed frame; the inner sides of the fifth and sixth vertical frames are rail structures; a drawer structure is provided in the gaps of the second bed frame, the drawer structure matching the inner sides of the fifth and sixth vertical frames; it can slide back and forth along the rail direction.

10. A lifting electric bed according to claim 9, characterized in that, The tail side of the first perimeter adopts an openable door structure, and the door structure is equipped with a door handle.

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