Three-motor folding bed

Abstract

The utility model discloses a three-motor folding bed which comprises a first bearing frame, a second bearing frame, a front hip bearing plate, a first lifting assembly, a head bearing plate, a back bearing plate, a second lifting assembly, a waist bearing plate, a rear hip bearing plate, a third lifting assembly, a leg bearing plate and a foot bearing plate. One side of the second bearing frame is connected with one side of the first bearing frame. The front hip bearing plate is arranged on the first bearing frame. The first lifting assembly is arranged in the first bearing frame. The head bearing plate is arranged on the second lifting frame. The back bearing plate is arranged on the first lifting frame. The second lifting assembly is arranged in the first lifting frame. The waist bearing plate is arranged on the third lifting frame. The rear hip bearing plate is arranged on the second bearing frame. The third lifting assembly is arranged in the second bearing frame. The chair has the function of supporting the head, the back, the waist, the buttocks, the legs and the feet, and can meet the diversified requirements of users.

Description

Technical Field

[0001] The utility model relates to the technical field of bedding, in particular to a three-motor folding bed. Background Art

[0002] With the improvement of people's living standards, electric beds have become widely used. A typical electric bed consists of multiple hinged panels with a bed frame underneath. A motor drives the panels to raise and lower them, allowing people to change positions in bed. However, most three-motor folding beds currently on the market have relatively limited functions and fail to meet the diverse needs of the market. Utility Model Content

[0003] In order to solve the above technical problems, the embodiment of the present invention provides a three-motor folding bed. The specific technical solution is as follows:

[0004] A three-motor folding bed is provided, comprising: a first supporting frame, a second supporting frame, a front hip supporting plate, a first lifting assembly, a head supporting plate, a back supporting plate, a second lifting assembly, a lumbar supporting plate, a rear hip supporting plate, a third lifting assembly, a leg supporting plate, and a foot supporting plate. One side of the second supporting frame is connected to a side of the first supporting frame. The front hip supporting plate is disposed on the first supporting frame, near the side of the second supporting frame. The first lifting assembly is disposed within the first supporting frame and comprises the first lifting frame, the second lifting frame, a pivot shaft, and a first lifting drive. One side of the first lifting frame is pivotally connected to a side of the first supporting frame near the front hip supporting plate, and the other side is pivotally connected to the second lifting frame. The other side is provided with an arcuate slot. The pivot shaft passes through the arcuate slot and connects to the drive end of the first lifting drive and the second lifting frame. The first lifting drive is configured to drive the pivot shaft within the arcuate slot, thereby rotating the second lifting frame relative to the first lifting frame and the first lifting frame about its pivotal connection with the first supporting frame. The head supporting plate is disposed on the second lifting frame. The back supporting plate is arranged on the first lifting frame and is located at a side close to the second lifting frame.

[0005] The second lifting assembly is mounted within the first lifting frame and includes a third lifting frame and a second lifting drive. The third lifting frame is pivotally connected to the middle section of the first lifting frame. The third lifting frame is located between the back support plate and the front hip support plate. The driving end of the second lifting drive is connected to the third lifting frame and is configured to drive the third lifting frame to rotate about its pivot end. The lumbar support plate is mounted on the third lifting frame. The rear hip support plate is mounted on the second support frame, located on a side adjacent to the first support frame. The third lifting assembly is mounted within the second support frame and includes a fourth lifting frame, a fifth lifting frame, and the third lifting drive. One side of the fourth lifting frame is pivotally connected to a side of the second support frame adjacent to the rear hip support plate, and the other side is pivotally connected to a side of the fifth lifting frame. The driving end of the first lifting drive is connected to the fourth lifting frame. The third lifting drive is configured to drive the fourth lifting frame to rotate about its pivot end with the second support frame, and to drive the fifth lifting frame to rotate about its pivot end with the second support frame. The leg support plate is mounted on the fourth lifting frame. The foot supporting plate is arranged on the fifth lifting frame.

[0006] In one embodiment, two parallel connecting plates are provided below a side of the first lifting frame away from the front hip supporting plate, the two connecting plates are parallel to the length direction of the first lifting frame and are orthogonal to the first lifting frame, and an arc-shaped slide is located on the two connecting plates, and the distance between a side of the arc-shaped slide close to the second lifting frame and the first lifting frame is smaller than the distance between a side of the arc-shaped slide away from the second lifting frame and the first lifting frame.

[0007] In one embodiment, the first lifting drive member has a first driving cylinder and a first telescopic rod. The first driving cylinder is pivotally connected to the side of the first lifting frame close to the front hip supporting plate. The first telescopic rod is arranged on the first driving cylinder. The end of the first telescopic rod away from the first driving cylinder is located between the arc-shaped slide grooves of the two connecting plates. The pivot shaft passes through the arc-shaped slide grooves on the two connecting plates and the first telescopic rod and is connected to the second lifting frame. The first driving cylinder drives the pivot shaft to move in the arc-shaped slide groove by driving the first telescopic rod to extend or retract in the cylinder.

[0008] In one embodiment, it also includes: two first linkage rods, which are symmetrically arranged on both sides of the width direction of the foot supporting plate, one end of the two first linkage rods is pivotally connected to the middle section of the second supporting frame, and the other end is pivotally connected to the other side of the fifth lifting frame.

[0009] In one embodiment, it further includes: a bottom supporting frame and a fourth lifting assembly. A first slide is provided in the middle section of the bottom supporting frame, and the first slide extends along the length direction of the bottom supporting frame. The fourth lifting assembly is provided on the bottom supporting frame, and includes a sixth lifting frame, a linkage and a fourth lifting drive. One side of the sixth lifting frame is pivotally connected to one side of the bottom supporting frame, and the other side is provided with a second slide, and the second slide extends along the length direction of the sixth lifting frame. Both sides of the linkage are correspondingly provided in the first slide and the second slide, and the first supporting frame and the second supporting frame are provided on the sixth lifting frame. The driving end of the fourth lifting drive is connected to the linkage, and the fourth lifting drive is configured to drive both sides of the linkage to slide in the corresponding first slide and the second slide, thereby driving the sixth lifting frame to rotate around its pivot end.

[0010] In one embodiment, the linkage member includes a linkage frame and pulleys arranged on both sides of the linkage frame. The two sides of the linkage frame are arranged in the first slide groove and the second slide groove through the slide groove. When the linkage member drives the sixth lifting frame to rotate upward around its pivot end, the pulley in the first slide groove slides toward the side away from the pivot end of the sixth lifting frame, and the pulley in the second slide groove slides toward the side close to the pivot end of the sixth lifting frame.

[0011] In one embodiment, the linkage member also includes two second linkage rods, which are symmetrically arranged on both sides of the width direction of the sixth lifting frame, one end of the two second linkage rods is pivotally connected to the middle section of the linkage frame, and the other end is pivotally connected to the middle section of the sixth lifting frame.

[0012] In one embodiment, it further includes: a plurality of leg support columns, which are arranged at the bottom of the bottom supporting frame.

[0013] In one embodiment, the first supporting frame can be folded in half around its connection end with the second supporting frame to be folded with the second supporting frame, and the first lifting assembly, the second lifting assembly and the third lifting assembly are located between the first supporting frame and the second supporting frame.

[0014] In one embodiment, the second lifting drive member has a second driving cylinder and a second telescopic rod, the second driving cylinder is pivotally connected to the side of the first lifting frame away from the front hip supporting plate, the second telescopic rod is arranged on the second driving cylinder, and the end of the second telescopic rod away from the second driving cylinder is pivotally connected to the third lifting frame, and the second driving cylinder drives the third lifting frame to rotate by driving the second telescopic rod to extend or retract into the cylinder; the third lifting drive member has a third driving cylinder and a third telescopic rod, the third driving cylinder is pivotally connected to the side of the second supporting frame away from the rear hip supporting plate, the third telescopic rod is arranged on the third driving cylinder, and the end of the third telescopic rod away from the third driving cylinder is pivotally connected to the fourth lifting frame, and the third driving cylinder drives the fourth lifting frame to rotate by driving the third telescopic rod to extend or retract into the cylinder.

[0015] In an embodiment of the present invention, a first lifting drive member drives the pivot shaft to move within an arcuate slot, thereby causing the second lifting frame to rotate upward relative to the first lifting frame and the first lifting frame to rotate upward about its pivotal connection with the first supporting frame, thereby causing the head support plate and the back support plate to rise, thereby providing a certain support angle for the head support plate and the back support plate, thereby providing support for the user's head and back. The second lifting drive member drives the third lifting frame to rotate upward about its pivotal connection, thereby causing the waist support plate to rise, thereby providing a certain angle between the waist support plate and the back support plate, thereby providing support for the user's waist. The third lifting drive member drives the fourth lifting frame to rotate upward about its pivotal connection with the second supporting frame, thereby causing the fifth lifting frame to rotate upward about its pivotal connection with the second supporting frame, thereby causing the leg support plate and the foot support plate to rise, thereby providing a certain support angle for the leg support plate and the foot support plate, thereby providing support for the user's legs and feet. The three-motor folding bed of the utility model has the functions of supporting the head, back, waist, buttocks, legs and feet, and can meet the diverse needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 and Figure 2 It is a three-dimensional diagram of the three-motor folding bed of the present utility model;

[0018] Figure 3 This is a three-motor folding bed of the present invention in a supporting state;

[0019] Figure 4 yes Figure 2 Side view of

[0020] Figure 5 yes Figure 1 Partial stereogram of

[0021] Figure 6 It is a three-dimensional diagram of the first lifting frame of the utility model;

[0022] Figure 7 This is a three-motor folding bed of the present invention in a folded state;

[0023] Figure 8 It is a three-dimensional diagram of the bottom supporting frame and the fourth lifting assembly of the utility model;

[0024] Figure 9 It is a three-motor folding bed of the present invention having a bottom supporting frame and a fourth lifting assembly;

[0025] Figure 10 yes Figure 9 side view. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In addition, the terms “first”, “second”, etc. used in this document do not specifically refer to order or sequence, nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms.

[0028] See also Figures 1 to 5 , Figure 1 and Figure 2 This is a three-motor folding bed of the utility model. Figure 3 It is a three-dimensional diagram of the support state, Figure 4 yes Figure 2 Side view of Figure 5 yes Figure 1 Partial stereogram, where Figure 2 yes Figure 1 A three-motor folding bed 1 is shown in a rear perspective view. As shown, the three-motor folding bed 1 of this embodiment includes a first supporting frame 2, a second supporting frame 3, a front hip supporting plate 4, a first lifting assembly 5, a head supporting plate 6, a back supporting plate 7, a second lifting assembly 8, a waist supporting plate 9, a rear hip supporting plate 10, a third lifting assembly 11, a leg supporting plate 12, and a foot supporting plate 13. One side of the second supporting frame 3 is connected to one side of the first supporting frame 2. In this embodiment, both the first supporting frame 2 and the second supporting frame 3 are rectangular frames, with the right side of the first supporting frame 2 connected to the left side of the second supporting frame 3. The front hip supporting plate 4 is disposed on the first supporting frame 2 and is located on the side near the second supporting frame 3.

[0029] Refer back Figures 2 to 5 As shown, the first lifting assembly 5 is disposed within the first supporting frame 2. The first lifting assembly 5 includes a first lifting frame 51, a second lifting frame 52, a pivot shaft 53, and a first lifting drive member 54. One side of the first lifting frame 51 is pivotally connected to the side of the first supporting frame 2 near the front hip supporting plate 4. The other side of the first lifting frame 51 is pivotally connected to the second lifting frame 52. Please refer to Figure 6 , which is a three-dimensional diagram of the first lifting frame of the present invention; as shown in the figure, an arc-shaped slide groove 511 is provided on the other side of the first lifting frame 51. The pivot shaft 53 passes through the arc-shaped slide groove 511 and is connected to the driving end of the first lifting drive member 54 and the second lifting frame 52. The first lifting drive member 54 is configured to drive the pivot shaft 53 to move in the arc-shaped slide groove 511, driving the second lifting frame 52 to rotate relative to the first lifting frame 51 and driving the first lifting frame 51 to rotate around its pivot end with the first supporting frame 2. The head supporting plate 6 is provided on the second lifting frame 52. The back supporting plate 7 is provided on the first lifting frame 51 and is located on the side close to the second lifting frame 52. When the second lifting frame 52 rotates relative to the first lifting frame 51, the second lifting frame 52 drives the head supporting plate 6 and the back supporting plate 7 to form a certain angle, thereby supporting the user's head. When the first lifting frame 51 rotates upward, the first lifting frame 51 drives the second lifting frame 52 and the back supporting plate 7 to rise simultaneously, so that the back supporting plate 7 has a certain supporting angle, which can support the user's back.

[0030] Refer back Figure 2 and Figure 5 As shown, the second lifting assembly 8 is arranged in the first lifting frame 51. The second lifting assembly 8 includes a third lifting frame 81 and a second lifting drive member 82. The third lifting frame 81 is pivotally connected to the middle section of the first lifting frame 51, and the third lifting frame 81 is located between the back support plate 7 and the front hip support plate 4. The driving end of the second lifting drive member 82 is connected to the third lifting frame 81, and the second lifting drive member 82 is configured to drive the third lifting frame 81 to rotate around its pivot end. The waist support plate 9 is arranged on the third lifting frame 81. When the third lifting frame 81 rotates upward, it drives the waist support plate 9 to rotate upward, so that a certain angle is formed between the waist support plate 9 and the back support plate 7, thereby supporting the user's waist.

[0031] Refer back Figure 2 and Figure 4As shown, the rear hip support plate 10 is mounted on the second support frame 3, near the first support frame 2. The third lifting assembly 11 is mounted within the second support frame 3. The third lifting assembly 11 includes a fourth lifting frame 111, a fifth lifting frame 112, and a third lifting drive 113. One side of the fourth lifting frame 111 is pivotally connected to the side of the second support frame 3 near the rear hip support plate 10. The other side of the fourth lifting frame 111 is pivotally connected to one side of the fifth lifting frame 112. The driving end of the first lifting drive 54 is connected to the fourth lifting frame 111. The third lifting drive 113 is configured to drive the fourth lifting frame 111 to rotate about its pivotal connection with the second support frame 3, and to drive the fifth lifting frame 112 to rotate about its pivotal connection with the second support frame 3. The leg support plate 12 is mounted on the fourth lifting frame 111. The foot support plate 13 is mounted on the fifth lifting frame 112. When the fourth lifting frame 111 rotates upward around its pivot end with the second supporting frame 3, the fourth lifting frame 111 and the fifth lifting frame 112 drive the leg supporting plate 12 and the foot supporting plate 13 to rise, so that the leg supporting plate 12 and the foot supporting plate 13 have a certain support angle, which can provide support for the user's legs and feet.

[0032] Refer back Figures 1 to 6 As shown, the three-motor folding bed 1 of this embodiment drives the pivot shaft 53 to move within the arc-shaped slide groove 511 via the first lifting drive 54, driving the second lifting frame 52 to rotate upward relative to the first lifting frame 51 and driving the first lifting frame 51 to rotate upward around its pivot end with the first supporting frame 2, thereby driving the head support plate 6 and the back support plate 7 to rise, so that the head support plate 6 and the back support plate 7 have a certain support angle, which can provide support for the user's head and back. The three-motor folding bed 1 drives the third lifting frame 81 to rotate upward around its pivot end via the second lifting drive 82, thereby driving the lumbar support plate 9 to rise, so that the lumbar support plate 9 and the back support plate 7 have a certain angle, which can provide support for the user's lumbar. The dual-motor folding bed 1 supports the user's buttocks through the front buttocks support plate 4 and the rear buttocks support plate 10. The dual-motor folding bed 1 drives the fourth lifting frame 111 to rotate upward around its pivotal connection with the second supporting frame 3 through the third lifting drive 113, and at the same time drives the fifth lifting frame 112 to rotate upward around its pivotal connection with the second supporting frame 3, thereby driving the leg support plate 12 and the foot support plate 13 to rise, so that the leg support plate 12 and the foot support plate 13 have a certain support angle, which can provide support for the user's legs and feet. The dual-motor folding bed 1 of this embodiment has head, back, waist, buttocks, legs and feet support functions, which can meet the diverse needs of users.

[0033] Refer back Figure 3 and Figure 6 As shown, in this embodiment, two parallel connecting plates 512 are disposed below the side of the first lifting frame 51 away from the front hip support plate 4. The two connecting plates 512 are parallel to the length of the first lifting frame 51 and perpendicular to the first lifting frame 51. Arc-shaped chutes 511 are located on the two connecting plates 512. The distance between the side of the arc-shaped chutes 511 near the second lifting frame 52 and the first lifting frame 51 is smaller than the distance between the side of the arc-shaped chutes 511 away from the second lifting frame 52 and the first lifting frame 51. The first lifting drive member 54 includes a first drive cylinder 541 and a first telescopic rod 542. The first drive cylinder 541 is pivotally connected to the side of the first lifting frame 51 near the front hip support plate 4. The first telescopic rod 542 is disposed on the first drive cylinder 541. The end of the first telescopic rod 542 away from the first drive cylinder 541 is located between the arc-shaped chutes 511 of the two connecting plates 512. The pivot shaft 53 passes through the arcuate slots 511 on the two connecting plates 512 and the first telescopic rod 542, connecting to the second lifting frame 52. The first drive cylinder 541 drives the first telescopic rod 542 to extend or retract within the cylinder, thereby driving the pivot shaft 53 to move within the arcuate slot 511. When the first drive cylinder 541 extends the first telescopic rod 542, the first telescopic rod 542 drives the pivot shaft 53 from the side of the arcuate slot 511 away from the second lifting frame 52 to the side closer to the second lifting frame 52, causing the second lifting frame 52 to rotate upward relative to the first lifting frame 51, creating a predetermined angle between the second lifting frame 52 and the first lifting frame 51.

[0034] Refer back Figure 4 As shown, in this embodiment, the three-motor folding bed 1 also includes two first linkage rods 14. These first linkage rods 14 are symmetrically positioned on either side of the foot support plate 13 in the width direction. One end of each first linkage rod 14 is pivotally connected to the middle section of the second support frame 3. The other end of each first linkage rod 14 is pivotally connected to the other side of the fifth lifting frame 112. These two linkage rods 14 ensure the stability of the fifth lifting frame 112.

[0035] See also Figure 7 Also see Figure 2 As shown, Figure 7This is a three-dimensional view of the three-motor folding bed of the present invention in its folded state. As shown, in this embodiment, the first supporting frame 2 can be folded in half around its connection with the second supporting frame 3, thereby folding with the second supporting frame 3. The first lifting assembly 5, second lifting assembly 8, and third lifting assembly 11 are positioned between the first supporting frame 2 and the second supporting frame 3. The head support plate 6, back support plate 7, waist support plate 9, and rear hip support plate 10 are positioned on the side of the first supporting frame 2 facing away from the second supporting frame 3. The rear hip support plate 10, leg support plate 12, and foot support plate 13 are positioned on the side of the second supporting frame 3 facing away from the first supporting frame 2. In this way, by folding the first supporting frame 2 and the second supporting frame 3, the volume of the two-motor folding bed 1 is reduced, making it easier to transport and store.

[0036] Refer back Figures 2 to 4 As shown, in this embodiment, the second lift drive member 82 includes a second drive cylinder 821 and a second telescopic rod 822. The second drive cylinder 821 is pivotally connected to the side of the first lift frame 51 away from the front hip support plate 4. The second telescopic rod 822 is disposed on the second drive cylinder 821. The end of the second telescopic rod 822 away from the second drive cylinder 821 is pivotally connected to the third lift frame 81. The second drive cylinder 821 drives the second telescopic rod 822 to extend or retract within the cylinder, thereby driving the third lift frame 81 to rotate. The third lift drive member 113 includes a third drive cylinder 1131 and a third telescopic rod 1132. The third drive cylinder 1131 is pivotally connected to the side of the second support frame 3 away from the rear hip support plate 10. The third telescopic rod 1132 is disposed on the third drive cylinder 1131. The end of the third telescopic rod 1132 away from the third drive cylinder 1131 is pivotally connected to the fourth lift frame 111. The third driving cylinder 1131 drives the fourth lifting frame 111 to rotate by driving the third telescopic rod 1132 to extend or retract into the cylinder.

[0037] See also Figures 8 to 9 , Figure 8 This is a three-dimensional diagram of the bottom supporting frame and the fourth lifting assembly of the utility model. Figure 9 A perspective view of a three-motor folding bed with a bottom support frame and a fourth lifting assembly. Figure 10 yes Figure 9As shown in the side view, in this embodiment, the three-motor folding bed 1 also includes a bottom supporting frame 15 and a fourth lifting assembly 16. A first chute 151 is provided in the middle section of the bottom supporting frame 15, extending along the length of the bottom supporting frame 15. The fourth lifting assembly 16 is mounted on the bottom supporting frame 15. The fourth lifting assembly 16 includes a sixth lifting frame 161, a linkage 162, and a fourth lifting drive 163. One side of the sixth lifting frame 161 is pivotally connected to one side of the bottom supporting frame 15. A second chute 1611 is provided on the other side of the sixth lifting frame 161. The second chute 1611 extends along the length of the sixth lifting frame 161. The linkage 162 has two sides correspondingly disposed on the first chute 151 and the second chute 1611. The first supporting frame 2 and the second supporting frame 3 are mounted on the sixth lifting frame 161. The driving end of the fourth lifting drive 163 is connected to the linkage 162. The fourth lifting driving member 163 is configured to drive both sides of the linkage member 162 to slide in the corresponding first sliding groove 151 and the second sliding groove 1611 , thereby driving the sixth lifting frame 161 to rotate around its pivot end.

[0038] As mentioned above, please refer to Figure 8 As shown, the linkage member 162 includes a linkage frame 1621 and pulleys 1622 disposed on either side of the linkage frame 1621. The two sides of the linkage frame 1621 are disposed within the first and second chute 151 and 1611 via chute slots. When the linkage member 162 drives the sixth lifting frame 161 to rotate upward about its pivot end, the pulley 1622 within the first chute 151 slides toward the side away from the pivot end of the sixth lifting frame 161, while the pulley 1622 within the second chute 1611 slides toward the side closer to the pivot end of the sixth lifting frame 161. The linkage member 162 also includes two second linkage rods 1623. The two second linkage rods 1623 are symmetrically disposed on either side of the sixth lifting frame 161 in the width direction. One end of the two second linkage rods 1623 is pivotally connected to the middle section of the linkage frame 1621. The other end of the two second linkage rods 1623 is pivotally connected to the middle section of the sixth lifting frame 161.

[0039] Refer back Figure 9 and Figure 10 As shown, in this embodiment, the three-motor folding bed 1 further includes a plurality of leg support columns 17. The plurality of leg support columns 17 are arranged at the bottom of the bottom supporting frame 15. The leg support columns 17 can be arranged on the bottom supporting frame 15 by means of threaded connection. Figure 1 As shown, the number of the bottom supporting frames 15 is six, wherein four bottom supporting frames 15 are arranged at the four bottom corners of the bottom supporting frame 15 , and the remaining two bottom supporting frames 15 are arranged in the middle of the bottom supporting frame 15 .

[0040] In summary, the present invention provides a three-motor folding bed. A first lifting drive member drives a pivot shaft to move within an arcuate slot, thereby driving a second lifting frame to rotate upward relative to the first lifting frame and driving the first lifting frame to rotate upward about its pivotal connection with the first supporting frame, thereby driving the head support plate and the back support plate to rise, thereby providing a certain support angle for the head support plate and the back support plate, thereby providing support for the user's head and back. A second lifting drive member drives a third lifting frame to rotate upward about its pivotal connection, thereby driving the lumbar support plate to rise, thereby providing a certain angle between the lumbar support plate and the back support plate, thereby providing support for the user's lumbar. A third lifting drive member drives a fourth lifting frame to rotate upward about its pivotal connection with the second supporting frame, thereby driving a fifth lifting frame to rotate upward about its pivotal connection with the second supporting frame, thereby driving the leg support plate and the foot support plate to rise, thereby providing a certain support angle for the leg support plate and the foot support plate, thereby providing support for the user's legs and feet. The three-motor folding bed of the utility model has the functions of supporting the head, back, waist, buttocks, legs and feet, and can meet the diverse needs of users.

[0041] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0042] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A three-motor folding bed, characterized in that: include: a first load-bearing frame; a second supporting frame, one side of which is connected to one side of the first supporting frame; a front hip bearing plate, provided on the first bearing frame and located on a side close to the second bearing frame; The first lifting assembly is arranged in the first carrying frame, and includes a first lifting frame, a second lifting frame, a pivot shaft and a first lifting drive member. One side of the first lifting frame is pivotally connected to a side of the first carrying frame close to the front hip carrying plate, and the other side is pivotally connected to the second lifting frame. The other side is provided with an arc-shaped slide groove. The pivot shaft passes through the arc-shaped slide groove and is connected to a driving end of the first lifting drive member and the second lifting frame. The first lifting drive member is configured to drive the pivot shaft to move in the arc-shaped slide groove, thereby driving the second lifting frame to rotate relative to the first lifting frame and driving the first lifting frame to rotate around its pivot end with the first carrying frame; a head supporting plate, arranged on the second lifting frame; a back supporting plate, provided on the first lifting frame and located on a side close to the second lifting frame; a second lifting assembly disposed within the first lifting frame, comprising a third lifting frame and a second lifting drive member, wherein the third lifting frame is pivotally connected to a middle section of the first lifting frame, the third lifting frame being located between the back support plate and the front hip support plate, a driving end of the second lifting drive member being connected to the third lifting frame, and the second lifting drive member being configured to drive the third lifting frame to rotate about its pivot end; A waist supporting plate is provided on the third lifting frame; a rear hip bearing plate, provided on the second bearing frame and located on a side close to the first bearing frame; a third lifting assembly disposed within the second supporting frame, comprising a fourth lifting frame, a fifth lifting frame, and a third lifting drive member; one side of the fourth lifting frame is pivotally connected to a side of the second supporting frame near the rear hip supporting plate, and the other side is pivotally connected to a side of the fifth lifting frame; a driving end of the first lifting drive member is connected to the fourth lifting frame; and the third lifting drive member is configured to drive the fourth lifting frame to rotate about a pivotal end thereof with the second supporting frame, and to drive the fifth lifting frame to rotate about a pivotal end thereof with the second supporting frame; a leg supporting plate, arranged on the fourth lifting frame; The foot supporting plate is arranged on the fifth lifting frame.

2. The three-motor folding bed according to claim 1, characterized in that: Two parallel connecting plates are provided below the side of the first lifting frame away from the front hip supporting plate, the two connecting plates are parallel to the length direction of the first lifting frame and are orthogonal to the first lifting frame, the arc-shaped slide is located on the two connecting plates, and the distance between the side of the arc-shaped slide close to the second lifting frame and the first lifting frame is smaller than the distance between the side of the arc-shaped slide away from the second lifting frame and the first lifting frame.

3. The three-motor folding bed according to claim 2, characterized in that: The first lifting drive component has a first driving cylinder and a first telescopic rod. The first driving cylinder is pivotally connected to the side of the first lifting frame close to the front hip supporting plate. The first telescopic rod is arranged on the first driving cylinder. The end of the first telescopic rod away from the first driving cylinder is located between the arc-shaped slide grooves of the two connecting plates. The pivot shaft passes through the arc-shaped slide grooves on the two connecting plates and the first telescopic rod and is connected to the second lifting frame. The first driving cylinder drives the pivot shaft to move in the arc-shaped slide groove by driving the first telescopic rod to extend or retract in the cylinder.

4. The three-motor folding bed according to claim 1, characterized in that: Also includes: Two first linkage rods are symmetrically arranged on both sides of the width direction of the foot supporting plate, one end of the two first linkage rods is pivotally connected to the middle section of the second supporting frame, and the other end is pivotally connected to the other side of the fifth lifting frame.

5. The three-motor folding bed according to claim 1, characterized in that: Also includes: The bottom supporting frame has a first slide groove in the middle section, and the first slide groove extends along the length direction of the bottom supporting frame; The fourth lifting assembly is arranged on the bottom supporting frame, including a sixth lifting frame, a linkage and a fourth lifting drive member. One side of the sixth lifting frame is pivotally connected to one side of the bottom supporting frame, and the other side is provided with a second slide groove. The second slide groove extends along the length direction of the sixth lifting frame. The two sides of the linkage member are correspondingly arranged at the first slide groove and the second slide groove. The first supporting frame and the second supporting frame are arranged on the sixth lifting frame. The driving end of the fourth lifting drive member is connected to the linkage member. The fourth lifting drive member is configured to drive the two sides of the linkage member to slide corresponding to the first slide groove and the second slide groove, thereby driving the sixth lifting frame to rotate around its pivot end.

6. The three-motor folding bed according to claim 5, characterized in that: The linkage member includes a linkage frame and pulleys arranged on both sides of the linkage frame. The two sides of the linkage frame are arranged in the first slide groove and the second slide groove through the slide groove. When the linkage member drives the sixth lifting frame to rotate upward around its pivot end, the pulley in the first slide groove slides toward the side away from the pivot end of the sixth lifting frame, and the pulley in the second slide groove slides toward the side close to the pivot end of the sixth lifting frame.

7. The three-motor folding bed according to claim 6, characterized in that: The linkage member also includes two second linkage rods, which are symmetrically arranged on both sides of the width direction of the sixth lifting frame. One end of the two second linkage rods is pivotally connected to the middle section of the linkage frame, and the other end is pivotally connected to the middle section of the sixth lifting frame.

8. The three-motor folding bed according to claim 5, characterized in that: Also includes: A plurality of leg support columns are arranged at the bottom of the bottom bearing frame.

9. The three-motor folding bed according to claim 1, characterized in that: The first supporting frame can be folded in half around its connection end with the second supporting frame to be folded with the second supporting frame. The first lifting assembly, the second lifting assembly and the third lifting assembly are located between the first supporting frame and the second supporting frame.

10. The three-motor folding bed according to claim 1, characterized in that: The second lifting drive member includes a second driving cylinder and a second telescopic rod, the second driving cylinder is pivotally connected to the side of the first lifting frame away from the front hip supporting plate, the second telescopic rod is arranged on the second driving cylinder, and the end of the second telescopic rod away from the second driving cylinder is pivotally connected to the third lifting frame, and the second driving cylinder drives the third lifting frame to rotate by driving the second telescopic rod to extend or retract into the cylinder; the third lifting drive member includes a third driving cylinder and a third telescopic rod, the third driving cylinder is pivotally connected to the side of the second supporting frame away from the rear hip supporting plate, the third telescopic rod is arranged on the third driving cylinder, and the end of the third telescopic rod away from the third driving cylinder is pivotally connected to the fourth lifting frame, and the third driving cylinder drives the fourth lifting frame to rotate by driving the third telescopic rod to extend or retract into the cylinder.

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