Nursing bed

Abstract

The present invention discloses a nursing bed. The nursing bed includes: a bed body; and a wheelchair, wherein the wheelchair has a state of being combined with the bed body and a state of being separated from the bed body, and the wheelchair includes a seat and a seat board, wherein the seat board has a flattened state and a folded state, and the seat board is arranged on the seat, wherein the seat board is provided with an excretion hole, and the seat has a receiving space that is connected to the excretion hole and for an excretion receiving device to enter and exit. By utilizing the nursing bed of the present invention, patients, recovering persons, etc. can complete excretion completely independently or only need a little help from a caregiver to complete excretion, thereby greatly reducing the burden on the caregiver and enabling patients, recovering persons, etc. to take better and more convenient care of themselves.

Description

Technical Field

[0001] The present invention relates to the field of nursing products, in particular to a nursing bed. Background Art

[0002] Nursing beds are widely used nursing facilities, for example, in hospitals or rehabilitation institutions, to assist patients or recovering persons in various postures such as sitting up, lying down, or half-lying down, so as to reduce the labor intensity of nursing staff. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present invention provides a nursing bed.

[0004] According to an embodiment of the present invention, the nursing bed includes: a bed body; and a wheelchair, the wheelchair has a combined state with the bed body and a detached state with the bed body, the wheelchair includes a seat and a chair plate, the chair plate has a flattened state and a folded state, the chair plate is arranged on the seat, wherein the chair plate is provided with a drainage hole, and the seat has a storage space connected to the drainage hole and for the drainage receiving device to enter and exit.

[0005] By utilizing the nursing bed of the present invention, patients, recovering persons, etc. can complete excretion completely independently or only need a little help from the caregiver to complete excretion, thereby greatly reducing the burden on the caregiver and enabling patients, recovering persons, etc. to take better and more convenient care of themselves.

[0006] Optionally, the bed includes a first restraint portion and a second restraint portion, the first restraint portion and the second restraint portion are spaced apart along the width direction of the bed, and the wheelchair in the combined state is located between the first restraint portion and the second restraint portion in the width direction of the bed; or the bed has a placement space, one end of the placement space is open in the width direction of the bed, and one end of the placement space is open in the length direction of the bed, and the wheelchair in the combined state is located in the placement space.

[0007] Optionally, the chair plate includes: a seat plate, which is arranged on the chair seat and is provided with the drainage hole; a leg plate, which is hinged to the seat plate and can swing and / or rise and fall relative to the chair seat; a back plate, which is hinged to the seat plate and can swing and / or rise and fall relative to the chair seat; and a foot plate, which is hinged to the leg plate.

[0008] The nursing bed further includes a first driving member, which is an electric swing arm, and the electric swing arm includes:

[0009] a shell, the shell being arranged on the seat, and a first limiting portion being arranged in the shell;

[0010] a rotating member and an eccentric shaft, wherein the eccentric shaft is provided on the rotating member, and an axis of the eccentric shaft is parallel to and eccentrically arranged relative to a rotation axis of the rotating member;

[0011] a motor, the motor being configured to drive the rotating member and the eccentric shaft to rotate about a rotation axis of the rotating member;

[0012] an internal gear rotatably disposed on the housing;

[0013] an external gear, the external gear being sleeved on the eccentric shaft and rotatable relative to the eccentric shaft, the external gear being provided with a second limiting portion, the internal gear being meshed with the external gear;

[0014] a limiting plate, the limiting plate being located between the rotating member and the external gear, the limiting plate having a third limiting portion and a fourth limiting portion, the first limiting portion and the third limiting portion being movably engaged with each other, and the second limiting portion and the fourth limiting portion being movably engaged with each other, so as to allow the external gear to translate along a first direction and a second direction orthogonal to the first direction; and

[0015] A swing arm is connected to the internal gear so as to be driven to swing by the internal gear, and the swing arm is hinged to the foot board to drive the leg board and the foot board to swing and / or rise and fall relative to the seat.

[0016] Optionally, the nursing bed further comprises a second driving member, the second driving member is the electric rocker arm, the housing of the second driving member is provided on the seat, and the swing arm of the second driving member is hinged to the backboard to drive the backboard to swing and / or rise and fall relative to the seat; or

[0017] The nursing bed further includes a connecting rod and a push rod, wherein the connecting rod is hinged to the swing arm of the first driving member, the push rod is rotatably provided on the seat, and the push rod is hinged to each of the backboard and the connecting rod.

[0018] Optionally, the connecting rod has a first end and a second end opposite to each other in its extension direction, the first end is hinged to the swing arm of the first driving member, and the push rod has a third end and a fourth end opposite to each other in its extension direction, the third end is hinged to the second end, and the fourth end is hinged to the back plate.

[0019] Optionally, the nursing bed further includes: a first guide member, which is provided on the leg board, and the first guide member has a second slide groove extending along the length direction of the leg board; a first sliding member, which is hinged to the swing arm of the first driving member, and the first sliding member is movably engaged in the second slide groove along the length direction of the leg board; a second guide member, which is provided on the back board, and the second guide member has a third slide groove extending along the length direction of the back board; and a second sliding member, which is hinged to the push rod or the swing arm of the second driving member, and the second sliding member is movably engaged in the third slide groove along the length direction of the back board.

[0020] Optionally, the first sliding member is a first roller or a first slider, and the first roller is rotatably provided on the swing arm of the first driving member. The second sliding member is a second roller or a second slider, and the second roller is rotatably provided on the push rod.

[0021] Optionally, the footboard includes: a footrest portion; a first connecting portion, the first connecting portion being orthogonal to the footrest portion and connected to the footrest portion, one of the footrest portion and the first connecting portion being hinged to the leg board; and a second connecting portion, the second connecting portion being orthogonal to the first connecting portion and connected to the first connecting portion, the second connecting portion being hinged to the swing arm of the first driving member.

[0022] Alternatively, the footboard and the legboard are both flat plates, the footboard and the legboard of the chair board in the flattened state are located in the same plane, and the footboard of the chair board in the folded state is perpendicular to the legboard.

[0023] Optionally, the footrest portion and the second connecting portion are both arranged horizontally, and the first connecting portion is arranged vertically.

[0024] Optionally, the back panel, the seat panel and the leg panel are arranged along a first preset direction, and the chair seat includes: a first side frame and a second side frame, the first side frame and the second side frame are spaced apart along the second preset direction, the first preset direction is orthogonal to the second preset direction, each of the first side frame and the second side frame has a fifth end and a sixth end opposite to each other in the first preset direction, the fifth end is adjacent to the leg panel relative to the sixth end in the first preset direction; and a connecting member, one end of the connecting member is connected to the fifth end of the first side frame, and the other end of the connecting member is connected to the fifth end of the second side frame.

[0025] Optionally, there are two first driving members, one first driving member is provided on the first side frame, and the other first driving member is provided on the second side frame, and the swing arms of the two first driving members are connected via a connecting shaft.

[0026] Optionally, the axis of the motor shaft of the motor is orthogonal to the rotation axis of the rotating member; the rotation axis of the rotating member is orthogonal to the plane where the first direction and the second direction are located; the rotation axis of the rotating member coincides with the rotation axis of the internal gear.

[0027] Optionally, a first gear is provided on the motor shaft, the first gear is detachably mounted on the motor shaft or formed integrally with the motor shaft, the rotating member is a second gear meshing with the first gear, the first gear is a helical gear, and the second gear is a bevel gear.

[0028] Optionally, the first limiting portion is one of a limiting protrusion and a limiting groove, and the third limiting portion is the other of the limiting protrusion and the limiting groove.

[0029] Optionally, the first limiting portion includes a first limiting protrusion and a second limiting protrusion arranged on the inner wall of the shell opposite to each other, and the third limiting portion includes a first limiting groove and a second limiting groove arranged opposite to each other, the first limiting protrusion can be relatively movably engaged in the first limiting groove, and the second limiting protrusion can be relatively movably engaged in the second limiting groove.

[0030] Optionally, the second limiting portion is one of a limiting protrusion and a limiting groove, and the fourth limiting portion is the other of the limiting protrusion and the limiting groove.

[0031] Optionally, the second limiting portion includes a third limiting protrusion and a fourth limiting protrusion arranged on the external gear opposite to each other, and the fourth limiting portion includes a third limiting groove and a fourth limiting groove, the third limiting protrusion is movably engaged in the third limiting groove, and the fourth limiting protrusion is movably engaged in the fourth limiting groove.

[0032] Optionally, the limiting disk has a center hole, the first limiting groove and the second limiting groove are arranged on the outer periphery of the limiting disk and open outward, and the third limiting groove and the fourth limiting groove are arranged on the inner periphery of the limiting disk and open inward.

[0033] Optionally, the first limiting groove and the second limiting groove are arranged opposite to each other in the first direction, the third limiting groove and the fourth limiting groove are arranged opposite to each other in the second direction, and the third limiting protrusion and the fourth limiting protrusion are adjacent to the outer periphery of the external gear and are located on the inner side of the teeth of the external gear.

[0034] Optionally, a receiving hole is provided in the wall of the outer shell, and the internal gear is rotatably provided in the receiving hole. The internal gear includes an inner gear ring and a bottom plate for covering one end of the inner gear ring. The teeth of the internal gear are formed on the inner wall of the inner gear ring, and the swing arm is fixed on the bottom plate.

[0035] Optionally, the first support plate is a seat plate, the second support plate is a leg plate, the first support plate and the second support plate are arranged along a first preset direction, and the chair seat includes: a first side frame and a second side frame, the first side frame and the second side frame are spaced apart along a second preset direction, the first preset direction is orthogonal to the second preset direction, each of the first side frame and the second side frame has a fifth end and a sixth end opposite to each other in the first preset direction, the fifth end is adjacent to the second support plate relative to the sixth end in the first preset direction; and a connecting member, one end of the connecting member is connected to the fifth end of the first side frame, and the other end of the connecting member is connected to the fifth end of the second side frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 2 is a structural diagram of a nursing bed according to an embodiment of the present invention, in which a wheelchair is in a combined state.

[0037] Figure 2 2 is a schematic structural diagram of a nursing bed according to an embodiment of the present invention, in which a wheelchair is in a disengaged state.

[0038] Figure 3 FIG. 1 is an exploded view of a wheelchair of a nursing bed according to an embodiment of the present invention.

[0039] Figure 4 2 is a schematic structural diagram of a wheelchair for a nursing bed according to an embodiment of the present invention, wherein the seat plate of the wheelchair is in a flattened state.

[0040] Figure 5 2 is a schematic structural diagram of a chair plate of a nursing bed wheelchair according to an embodiment of the present invention.

[0041] Figure 6 2 is a schematic structural diagram of a wheelchair for a nursing bed according to an embodiment of the present invention, wherein the seat plate of the wheelchair is in a folded state.

[0042] Figure 7 2 is a schematic structural diagram of a wheelchair for a nursing bed according to an embodiment of the present invention, wherein the seat plate of the wheelchair is in a folded state.

[0043] Figure 8 2 is a schematic structural diagram of a wheelchair for a nursing bed according to an embodiment of the present invention, wherein the seat plate of the wheelchair is in a flattened state.

[0044] Figure 92 is a schematic structural diagram of a wheelchair for a nursing bed according to an embodiment of the present invention, wherein the seat plate of the wheelchair is in a folded state.

[0045] Figure 10 is a perspective view of an electric swing arm according to an embodiment of the present invention.

[0046] Figure 11 is an exploded view of an electric swing arm according to an embodiment of the present invention.

[0047] Figure 12 FIG. 4 is an exploded view of the electric swing arm according to another embodiment of the present invention.

[0048] Figure 13 is a cross-sectional view of an electric swing arm according to an embodiment of the present invention.

[0049] Figure 14 The electric swing arm according to the embodiment of the present invention Figure 13 AA cross-sectional view in.

[0050] Figure 15 The electric swing arm according to the embodiment of the present invention Figure 13 Cross-sectional view of BB in .

[0051] Figure 16 The electric swing arm according to the embodiment of the present invention Figure 13 Cross-sectional view of CC in .

[0052] Figure 17 2 is a structural diagram of a nursing bed according to an embodiment of the present invention, in which a wheelchair is in a combined state.

[0053] Figure 18 2 is a schematic structural diagram of a nursing bed according to an embodiment of the present invention, in which a wheelchair is in a disengaged state.

[0054] Figure 19 1 is a schematic diagram of a partial structure of a wheelchair for a nursing bed according to an embodiment of the present invention.

[0055] Figure 20 1 is a schematic diagram of a partial structure of a wheelchair for a nursing bed according to an embodiment of the present invention.

[0056] Figure 21 1 is a schematic diagram of a partial structure of a wheelchair for a nursing bed according to an embodiment of the present invention.

[0057] Figure 22 2 is a diagram showing the usage status of a wheelchair of a nursing bed according to an embodiment of the present invention. DETAILED DESCRIPTION

[0058] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0059] The following describes a nursing bed 100 according to an embodiment of the present invention with reference to the accompanying drawings. Figures 1-9 as well as Figures 17-22 As shown, a nursing bed 100 according to an embodiment of the present invention includes a bed frame 2 and a wheelchair 3. The wheelchair 3 can be coupled to the bed frame 2 and detached from the bed frame 2. The wheelchair 3 includes a seat 31 and a seat plate 32. The seat plate 32 can be flattened and folded. The seat plate 32 is mounted on the seat 31. The seat plate 32 is provided with a drainage hole 321, and the seat 31 has a receiving space 311 that is connected to the drainage hole 321 and allows the excretion receiving device 200 to enter and exit.

[0060] When the wheelchair 3 is in this combined state, the wheelchair 3 and the bed body 2 are combined together so that the nursing bed 100 becomes a whole. At this time, the user (patient, convalescent, etc.) on the nursing bed 100 can be located on the bed body 2 or on the wheelchair 3.

[0061] When the wheelchair 3 is in the disengaged state, the wheelchair 3 and the bed 2 are separated from each other. At this time, the user can lie on the bed 2 and the wheelchair 3 can be placed elsewhere to reduce the occupied space; the user can also lie on the wheelchair 3 so that the user can perform activities such as defecation, examination, and treatment.

[0062] When a user is in the wheelchair 3, the wheelchair 3 can be in the flattened state or the folded state. In other words, the engaged and disengaged states of the wheelchair 3 are independent of the flattened and folded states of the wheelchair 3. That is, when the wheelchair 3 is in the engaged state, the wheelchair 3 can be in the flattened state or the folded state; when the wheelchair 3 is in the disengaged state, the wheelchair 3 can be in the flattened state or the folded state. And vice versa.

[0063] As described above, the wheelchair 3 and the user in the disengaged state can detach from the bed 2. By providing a storage space 311 on the seat 31 for the excrement receiving device 200 to enter and exit, the wheelchair 3 in the disengaged state can be mated with the excrement receiving device 200 so that at least a portion of the excrement receiving device 200 is located within the storage space 311. By providing an excretion hole 321 on the seat 32 that communicates with the storage space 311, the user can defecate without leaving the wheelchair 3. After defecation, the wheelchair 3 is detached from the excrement receiving device 200. The excrement receiving device 200 can be a toilet, or a container such as a bucket or basin.

[0064] As a result, the user can complete excretion completely independently or only needs a little help from the caregiver to complete excretion, which greatly reduces the burden on the caregiver and enables patients, recovering people, etc. to take better and more convenient care of themselves.

[0065] like Figures 1-9 as well as Figures 17-22 As shown, a nursing bed 100 according to an embodiment of the present invention includes a bed frame 2 and a wheelchair 3. The wheelchair 3 has a coupled state with the bed frame 2 and a detached state with the bed frame 2. The wheelchair 3 includes a seat 31 and a seat plate 32. The seat plate 32 has a flattened state and a folded state. That is, the wheelchair 3 has a flattened state and a folded state.

[0066] When the wheelchair 3 is in this combined state, the user can be in the wheelchair 3 or on the bed 2, and the seat plate 32 (wheelchair 3) can be in the flattened state or the folded state. When the user needs to perform activities such as defecation, examination, and treatment, the user can sit on the wheelchair 3 and detach the wheelchair 3 from the bed 2, even if the wheelchair 3 is in the detached state. After the user completes the activities such as defecation, examination, and treatment, the user can detach the wheelchair 3 from the bed 2, returning the wheelchair 3 to the combined state.

[0067] like Figure 1 and Figure 2 As shown, the bed body 2 includes a first restraining portion 23 and a second restraining portion 24. The first restraining portion 23 and the second restraining portion 24 are spaced apart along the width of the bed body 2. That is, the first restraining portion 23 and the second restraining portion 24 are spaced apart along the width of the nursing bed 100. A placement space 25 is formed between the first restraining portion 23 and the second restraining portion 24. When the wheelchair 3 is in the engaged state, at least a portion is located within the placement space 25. When the wheelchair 3 is in the disengaged state, at least a portion is removed from the placement space 25.

[0068] Thus, the first restraining portion 23 and the second restraining portion 24 can be used to restrain the position of the wheelchair 3, thereby preventing the wheelchair 3 from moving around, so that the user can more easily transfer between the bed 2 and the wheelchair 3. Figure 1 As shown by the arrow G in FIG, the length direction of the bed body 2 is as follows Figure 1 As shown by arrow F in FIG.

[0069] like Figure 17 and Figure 18As shown, the bed 2 has a storage space 25. One end of the storage space 25 is open in the width direction of the bed 2, and one end of the storage space 25 is open in the length direction of the bed 2. When the wheelchair 3 is in the engaged state, at least a portion is located within the storage space 25. When the wheelchair 3 is in the disengaged state, at least a portion is removed from the storage space 25. In other words, a corner of the bed 2 is removed to accommodate the wheelchair 3 in the engaged state.

[0070] This allows the wheelchair 3 to be more easily coupled to and detached from the bed 2 , allowing patients, recovering patients, etc. to take better and more convenient care of themselves. Optionally, the bed 2 includes a bed frame 21 and a bed board 22 , and the bed board 22 is mounted on the bed frame 21 .

[0071] like Figure 1 as well as Figure 3-Figure 9 As shown, the chair panel 32 includes a seat panel 322, a leg panel 323, a back panel 324, and a foot panel 325. The seat panel 322 is provided on the seat 31 and is provided with a drainage hole 321. The leg panel 323 is hinged to the seat panel 322, and the leg panel 323 can swing and / or rise and fall relative to the seat 31. The back panel 324 is hinged to the seat panel 322, and the back panel 324 can swing and / or rise and fall relative to the seat 31. The foot panel 325 is hinged to the leg panel 323, so that the foot panel 325 can swing and / or rise and fall relative to the seat 31 together with the leg panel 323. In other words, the leg panel 323, the back panel 324, and the foot panel 325 can all swing and / or rise and fall relative to the seat panel 322.

[0072] This allows the back and legs of a patient, a recovering patient, or other user to be lifted or laid flat, allowing the user to change more postures to improve user comfort. For example, the user can be in a sitting position to allow the user to defecate more comfortably.

[0073] The nursing bed 100 further includes a first driving member 1b, which is an electric swing arm 1. Figures 10-16 As shown, the electric rocker 1 includes a housing 17 , a rotating member 111 , an eccentric shaft 112 , a motor 121 , an internal gear 161 , an external gear 13 , a limiting plate 14 and a rocker arm 162 .

[0074] The housing 17 of the first driving member 1b is mounted on the seat 31. A first stopper 172 is provided within the housing 17. An eccentric shaft 112 is mounted on the rotating member 111. The axis of the eccentric shaft 112 is parallel to and eccentrically positioned relative to the rotational axis of the rotating member 111. In other words, the axis of the eccentric shaft 112 is spaced radially apart from the rotational axis of the rotating member 111. The motor 121 is configured to drive the rotating member 111 and the eccentric shaft 112 to rotate about the rotational axis of the rotating member 111.

[0075] The external gear 13 is mounted on the eccentric shaft 112 and is rotatable relative to the eccentric shaft 112. That is, the external gear 13 rotates about the rotation axis of the rotating member 111, i.e., the external gear 13 revolves around the rotation axis of the rotating member 111. However, the external gear 13 does not rotate about a specific axis, i.e., the external gear 13 does not rotate on its own. The limiting plate 14 is located between the rotating member 111 and the external gear 13. The internal gear 161 is rotatably mounted on the housing 17 and meshes with the external gear 13. The swing arm 162 is connected to the internal gear 161 and is driven by the internal gear 161 to swing. The swing arm 162 of the first driving member 1b is hingedly connected to the foot plate 325 to drive the leg plate 323 and foot plate 325 to swing and / or rise and fall relative to the seat 31.

[0076] The outer gear 13 is provided with a second limiting portion 131. The limiting plate 14 has a third limiting portion 141 and a fourth limiting portion 142. The first limiting portion 172 and the third limiting portion 141 are movably engaged with each other so that the outer gear 13 can translate along a first direction. The second limiting portion 131 and the fourth limiting portion 142 are movably engaged with each other so that the outer gear 13 can translate along a second direction. The second direction is orthogonal to the first direction. The first direction is as shown in FIG. Figure 15 As shown by the arrow D in FIG. Figure 15 As shown by arrow E in FIG.

[0077] When the electric rocker arm 1 according to the embodiment of the present invention is in operation, the motor 121 drives the rotating member 111 to rotate, which in turn drives the eccentric shaft 112 to rotate via the rotating member 111. Because the external gear 13 is sleeved on the eccentric shaft 112 and is rotatable relative to the eccentric shaft 112, the external gear 13 does not rotate about the rotation axis of the rotating member 111 under the influence of the eccentric shaft 112. In other words, the external gear 13 does not rotate on its own under the influence of the eccentric shaft 112.

[0078] The first limiting portion 172 cooperates with the third limiting portion 141, and the second limiting portion 131 cooperates with the fourth limiting portion 142, enabling the external gear 13 to move in the first and second directions, which are orthogonal to each other. In other words, the first limiting portion 172 cooperates with the third limiting portion 141, allowing the limiting plate 14 to move relative to the housing 17 only in one of the first and second directions, and the external gear 13 to move relative to the limiting plate 14 only in the other of the first and second directions. Consequently, the external gear 13 is able to orbit around the rotation axis of the rotating member 111 within a first plane parallel to each of the first and second directions. This means that the external gear 13 performs circular motion relative to the housing 17 about the rotation axis of the rotating member 111.

[0079] During the revolution of the external gear 13 , the external gear 13 meshes with the internal gear 161 , so that the external gear 13 drives the internal gear 161 to rotate, that is, the external gear 13 drives the internal gear 161 to rotate, and then the internal gear 161 drives the swing arm 162 to swing.

[0080] According to the embodiment of the present invention, the electric rocker arm 1 is provided with an outer gear 13 and a limiting plate 14 that cooperate with each other, so that the outer gear 13 revolves in the orbit but does not rotate on its own, so that the outer gear 13 drives the inner gear 161 to rotate, and then the inner gear 161 drives the rocker arm 162 to swing.

[0081] The external gear 13 drives the internal gear 161 in rotation, and the two gears work together to reduce speed, eliminating the need for a speed reducer. Furthermore, since the external gear 13 can be embedded inside the internal gear 161, the two gears can lie roughly on the same plane, effectively reducing the space occupied by the external gear 13 and the internal gear 161, and thus effectively reducing the size of the electric rocker 1. Furthermore, the external gear 13 drives the internal gear 161 in rotation, achieving a larger transmission ratio.

[0082] Therefore, the electric rocker arm 1 according to the embodiment of the present invention has the advantages of small size, simple structure, large transmission ratio, small input, large output, etc., and can be applied to occasions with small installation space.

[0083] The wheelchair 3 according to an embodiment of the present invention utilizes the electric rocker arm 1 to drive the leg panels 323 and the foot panels 325 to swing and / or rise and fall relative to the seat 31, thereby reducing the difficulty of assembling the wheelchair 3, reducing the space occupied by the wheelchair 3, and providing greater driving force to the leg panels 323 and the foot panels 325 to better swing and / or rise and fall relative to the seat 31.

[0084] like Figure 6 and Figure 7 As shown, the nursing bed 100 further includes a first guide member 52 and a first sliding member 42. The first guide member 52 is provided on the leg board 323 and has a second slide 521 extending along the length of the leg board 323. In other words, the extension direction of the second slide 521 is consistent with the length direction of the leg board 323. When the leg board 323 is horizontal and the wheelchair 3 is in this coupled state with the bed body 2, that is, when the leg board 323 is flat and the wheelchair 3 is in this coupled state, the length direction of the leg board 323 is consistent with the length direction of the bed body 2.

[0085] The first sliding member 42 is hinged to the swing arm 162 of the first driving member 1b and is movably engaged within the second chute 521 along the length of the leg plate 323. In other words, the first sliding member 42 is movably engaged within the second chute 521 along the extension direction of the second chute 521. This makes the structure of the nursing bed 100 more rational.

[0086] Optionally, the first sliding member 42 is a first roller or a first slider, and the first roller is rotatably disposed on the swing arm 162 of the first driving member 1b.

[0087] like Figure 6 and Figure 7 As shown, the nursing bed 100 further includes a second guide member 53 and a second sliding member 43. The second guide member 53 is provided on the back panel 324 and has a third slide 531 extending along the length of the back panel 324. In other words, the extension direction of the third slide 531 is consistent with the length of the back panel 324. When the back panel 324 is horizontal and the wheelchair 3 is in this coupled state with the bed frame 2, that is, when the back panel 324 is flat and the wheelchair 3 is in this coupled state, the length of the back panel 324 is consistent with the length of the bed frame 2.

[0088] The second sliding member 43 is hinged to the push rod 62 or the swing arm 162 of the second driving member. The second sliding member 43 is movably engaged in the third chute 531 along the length of the back plate 324. In other words, the second sliding member 43 is movably engaged in the third chute 531 along the extension direction of the third chute 531. This makes the structure of the nursing bed 100 more reasonable.

[0089] Optionally, the second sliding member 43 is a second roller or a second sliding block, and the second roller is rotatably provided on the push rod 62 or the swing arm 162 of the second driving member.

[0090] The nursing bed 100 further includes a second driving member (not shown in the figure), which is an electric rocker arm 1. The housing 17 of the second driving member is provided on the seat 31, and the rocker arm 162 of the second driving member is hinged to the back panel 324 to drive the back panel 324 to swing and / or rise and fall relative to the seat 31.

[0091] like Figure 6-Figure 9 as well as Figures 19-21As shown, the nursing bed 100 further includes a connecting rod 61 and a push rod 62. The connecting rod 61 is hingedly connected to the swing arm 162 of the first driving member 1b. The push rod 62 is rotatably provided on the seat 31 and is hingedly connected to each of the back panel 324 and the connecting rod 61. As a result, the first driving member 1b can simultaneously drive the leg panel 323, the foot panel 325, and the back panel 324 to swing and / or rise and fall relative to the seat 31, eliminating the need to provide separate driving members for the leg panel 323 (foot panel 325) and the back panel 324, thereby simplifying the structure of the nursing bed 100 and reducing the manufacturing cost of the nursing bed 100.

[0092] The connecting rod 61 has a first end 611 and a second end 612 that are opposite to each other in the direction of its extension. The first end 611 of the connecting rod 61 is hingedly connected to the swing arm 162 of the first driving member 1b. The push rod 62 has a third end 621 and a fourth end 622 that are opposite to each other in the direction of its extension. The third end 621 of the push rod 62 is hingedly connected to the second end 612 of the connecting rod 61, and the fourth end 622 of the push rod 62 is hingedly connected to the back plate 324.

[0093] like Figure 8 and Figure 9 As shown, the foot plate 325 is hingedly connected to the leg plate 323, and the swing arm 162 of the first driving member 1b is hingedly connected to the foot plate 325. Thus, the seat 31 (seat plate 322), the swing arm 162 of the first driving member 1b, the foot plate 325, and the leg plate 323 can form a parallelogram mechanism, thereby keeping the foot plate 325 in a generally horizontal state at all times, making it convenient for the user to step on it.

[0094] like Figure 8 and Figure 9 As shown, the footboard 325 includes a footrest portion 3251, a first connecting portion 3252, and a second connecting portion 3253. The first connecting portion 3252 is perpendicular to the footrest portion 3251 and is connected to the footrest portion 3251. One of the footrest portion 3251 and the first connecting portion 3252 is hinged to the leg board 323. The second connecting portion 3253 is perpendicular to the first connecting portion 3252 and is connected to the first connecting portion 3252. The second connecting portion 3253 is hinged to the swing arm 162 of the first driving member 1b. This makes the structure of the footboard 325 more rational.

[0095] Optionally, the footrest portion 3251 and the second connection portion 3253 are both arranged horizontally, and the first connection portion 3252 is arranged vertically, thereby making the structure of the foot plate 325 more reasonable.

[0096] like Figure 3-Figure 5As shown, the footboard 325 and legboard 323 are both flat. When the chair panel 32 is in the flattened state, the legboard 323 and footboard 325 are located in the same plane. In other words, when the chair panel 32 is in the flattened state, the legboard 323 and footboard 325 are flat. When the chair panel 32 is in the folded state, the footboard 325 is perpendicular to the legboard 323. This allows the user to sit more comfortably in the wheelchair 3. Optionally, the swing arm 162 of the first drive member 1b is connected to the footboard 325 via an L-shaped connector 326.

[0097] like Figure 3 、 Figure 4 、 Figure 6 and Figure 7 As shown, the back panel 324, seat panel 322, and leg panels 323 are arranged along a first predetermined direction. The seat 31 includes a first side frame 312, a second side frame 313, and a connector 314. The first and second side frames 312, 313 are spaced apart along a second predetermined direction, with the first predetermined direction being orthogonal to the second predetermined direction. When the wheelchair 3 is coupled to the bed 2, the first predetermined direction coincides with the length of the bed 2, and the second predetermined direction coincides with the width of the bed 2.

[0098] Each of the first side frame 312 and the second side frame 313 has a fifth end and a sixth end that are opposite each other in the first predetermined direction. The fifth end is adjacent to the leg plate 323 in the first predetermined direction relative to the sixth end. One end of the connector 314 is connected to the fifth end of the first side frame 312, and the other end of the connector 314 is connected to the fifth end of the second side frame 313. This makes the structure of the seat 31 more rational.

[0099] like Figures 19-21 As shown, the first side frame 312 is provided with a first driving member 1b, and the second side frame 313 is provided with a first driving member 1b. The swing arm 162 of each first driving member 1b is hingedly connected to the leg plate 323. This allows the leg plate 323 to be driven to swing and / or rise and fall relative to the seat 31 more effectively. Optionally, the swing arms 162 of the two first driving members 1b are connected to the same connecting shaft 63, that is, the swing arms 162 of the two first driving members 1b are connected via the connecting shaft 63, so as to improve the consistency of the swing arms 162 of the two first driving members 1b, thereby more effectively driving the leg plate 323 to swing and / or rise and fall relative to the seat 31.

[0100] like Figure 19 As shown, when the seat plate 32 is in the flattened state, the connecting rod 61 and the connecting shaft 63 can be located at substantially the same height, and the portion where the connecting rod 61 and the connecting shaft 63 face each other (intersects with each other) is recessed downward to avoid the connecting shaft 63. Figure 20 and Figure 21 As shown, the connecting rod 61 can be located below the connecting shaft 63 to avoid the connecting shaft 63.

[0101] like Figures 10-16 As shown, the electric rocker arm 1 according to an embodiment of the present invention includes a housing 17 , a rotating member 111 , an eccentric shaft 112 , a motor 121 , an internal gear 161 , an external gear 13 , a limiting plate 14 and a rocker arm 162 .

[0102] The eccentric shaft 112 is disposed on the rotating member 111. The axis of the eccentric shaft 112 is parallel to and eccentrically disposed relative to the rotation axis of the rotating member 111. In other words, the axis of the eccentric shaft 112 and the rotation axis of the rotating member 111 are spaced apart in the radial direction of the rotating member 111. The motor 121 is used to drive the rotating member 111 and the eccentric shaft 112 to rotate about the rotation axis of the rotating member 111.

[0103] External gear 13 is mounted on eccentric shaft 112 and is rotatable relative to eccentric shaft 112. Specifically, external gear 13 rotates about the rotation axis of rotating member 111, i.e., it orbits around the rotation axis of rotating member 111. However, external gear 13 does not rotate about a specific axis, i.e., it does not rotate on its own axis. Restriction plate 14 is positioned between rotating member 111 and external gear 13. Internal gear 161 is rotatably mounted on housing 17 and meshes with external gear 13. A swing arm 162 is connected to internal gear 161 so that it is driven to swing.

[0104] A first limiting portion 172 is provided within the housing 17, and a second limiting portion 131 is provided within the external gear 13. The limiting plate 14 has a third limiting portion 141 and a fourth limiting portion 142. The first limiting portion 172 and the third limiting portion 141 are movably engaged with each other to enable translation of the external gear 13 in a first direction. The second limiting portion 131 and the fourth limiting portion 142 are movably engaged with each other to enable translation of the external gear 13 in a second direction. This second direction is orthogonal to the first direction.

[0105] When the electric rocker arm 1 according to the embodiment of the present invention is in operation, the motor 121 drives the rotating member 111 to rotate, which in turn drives the eccentric shaft 112 to rotate via the rotating member 111. Because the external gear 13 is sleeved on the eccentric shaft 112 and is rotatable relative to the eccentric shaft 112, the external gear 13 does not rotate about the rotation axis of the rotating member 111 under the influence of the eccentric shaft 112. In other words, the external gear 13 does not rotate on its own under the influence of the eccentric shaft 112.

[0106] The first limiting portion 172 cooperates with the third limiting portion 141, and the second limiting portion 131 cooperates with the fourth limiting portion 142, enabling the external gear 13 to move in the first and second directions, which are orthogonal to each other. In other words, the first limiting portion 172 cooperates with the third limiting portion 141, allowing the limiting plate 14 to move relative to the housing 17 only in one of the first and second directions, and the external gear 13 to move relative to the limiting plate 14 only in the other of the first and second directions. Consequently, the external gear 13 is able to orbit around the rotation axis of the rotating member 111 within a first plane parallel to each of the first and second directions. This means that the external gear 13 performs circular motion relative to the housing 17 about the rotation axis of the rotating member 111.

[0107] During the revolution of the external gear 13 , the external gear 13 meshes with the internal gear 161 , so that the external gear 13 drives the internal gear 161 to rotate, that is, the external gear 13 drives the internal gear 161 to rotate, and then the internal gear 161 drives the swing arm 162 to swing.

[0108] According to the embodiment of the present invention, the electric rocker arm 1 is provided with an outer gear 13 and a limiting plate 14 that cooperate with each other, so that the outer gear 13 revolves in the orbit but does not rotate on its own, so that the outer gear 13 drives the inner gear 161 to rotate, and then the inner gear 161 drives the rocker arm 162 to swing.

[0109] The external gear 13 drives the internal gear 161 in rotation, and the two gears work together to reduce speed, eliminating the need for a speed reducer. Furthermore, since the external gear 13 can be embedded inside the internal gear 161, the two gears can lie roughly on the same plane, effectively reducing the space occupied by the external gear 13 and the internal gear 161, and thus effectively reducing the size of the electric rocker 1. Furthermore, the external gear 13 drives the internal gear 161 in rotation, achieving a larger transmission ratio.

[0110] Therefore, the electric rocker arm 1 according to the embodiment of the present invention has the advantages of small size, simple structure, large transmission ratio, small input, large output, etc., and can be applied to occasions with small installation space.

[0111] like Figures 10-16 As shown, the electric rocker arm 1 according to an embodiment of the present invention includes a housing 17 , a rotating member 111 , an eccentric shaft 112 , a motor 121 , an internal gear 161 , an external gear 13 , a limiting plate 14 and a rocker arm 162 .

[0112] The housing 17 is provided with a notch 173, the motor 121 is arranged in the notch 173, and the housing 17 includes a motor cover 177 for covering the motor 121. This can make the structure of the electric rocker 1 more reasonable.

[0113] like Figure 10-14 As shown, the housing 17 includes a shell 174 and a cover 175 . The inner cavity 1741 of the shell 174 has an opening on a side facing the swing arm 162 . The cover 175 is connected to the shell 174 to cover the opening.

[0114] Optionally, the housing 17 is in the shape of a rectangular or square body. The housing 174 may include a bottom plate 1742 and a side plate 1743, wherein the bottom plate 1742 is disposed opposite to the opening, and the side plate 1743 is disposed on the bottom plate 1741. The side plate 1743 is provided with a notch 173, and the motor cover 177 is disposed on the side plate 1743 to cover the notch 173.

[0115] like Figure 11 、 Figure 12 and Figure 14 As shown, a receiving hole 176 is provided in the wall of the housing 17, and the internal gear 161 is rotatably disposed in the receiving hole 176. This can further reduce the space occupied by the internal gear 161, thereby further effectively reducing the volume of the electric rocker 1, so that the electric rocker 1 is better suitable for occasions with smaller installation space.

[0116] Optionally, the receiving hole 176 is provided in the cover 175, and the receiving hole 176 passes through the cover 175 along the thickness direction of the cover 175. In this way, the structure of the electric rocker arm 1 can be made more reasonable.

[0117] The motor 121 is located in the housing 17 , for example, in the inner cavity 1741 . The motor 121 may include a stator 1211 , a rotor 1212 , a terminal 1213 , and a motor shaft 1214 , wherein the motor shaft 1214 is connected to the rotor 1212 .

[0118] like Figure 11-13 As shown, a first gear 122 is provided on the motor shaft 1214. The first gear 122 may be detachably mounted on the motor shaft 1214 or may be integrally formed with the motor shaft 1214. The rotating member 111 is a second gear that meshes with the first gear 122. For example, the first gear 122 may be a helical gear, and the second gear may be a bevel gear. Helical and bevel gears offer advantages such as ease of processing, low manufacturing cost, and suitability for mass production.

[0119] Optionally, the axis of the motor shaft 1214 of the motor is orthogonal to the rotation axis of the rotating member 111. This can make the structure of the electric rocker 1 more reasonable.

[0120] like Figure 11 as well as Figure 13-16 As shown, the electric rocker arm 1 further includes a mounting and positioning shaft 163 , which is disposed in the housing 17 , and the rotating member 111 is rotatably mounted on the mounting and positioning shaft 163 so that the rotating member 111 can be mounted more stably and more easily.

[0121] like Figure 14 As shown, the bottom plate 1742 is provided with an assembly hole passing through it along its thickness direction, that is, the assembly hole passes through the bottom plate 1742 along the thickness direction of the bottom plate 1742. A portion of the installation and positioning shaft 163 is fitted in the assembly hole, and the other portion of the installation and positioning shaft 163 is located in the inner cavity 1741.

[0122] The eccentric shaft 112 is located within the inner cavity 1741 and is mounted on the rotating member 111. Optionally, the eccentric shaft 112 can be rotatably mounted on the mounting and positioning shaft 163 to further optimize the structure of the electric rocker arm 1. The axis of the eccentric shaft 112 is parallel to and eccentrically positioned relative to the rotational axis of the rotating member 111. In other words, the axis of the eccentric shaft 112 and the rotational axis of the rotating member 111 are spaced apart in the radial direction of the rotating member 111. As a result, the eccentric shaft 112 rotates around the rotational axis of the rotating member 111, driven by the rotating member 111.

[0123] The external gear 13 is located within the inner cavity 1741 and is sleeved on the eccentric shaft 112. The external gear 13 is rotatable relative to the eccentric shaft 112. In other words, the external gear 13 rotates about the rotation axis of the rotating member 111, i.e., the external gear 13 revolves around the rotation axis of the rotating member 111. However, the external gear 13 does not rotate about the rotation axis of the rotating member 111, i.e., the external gear 13 does not rotate on its own.

[0124] The limiting disk 14 is located in the inner cavity 1741. The eccentric shaft 112 can pass through the limiting disk 14, and the eccentric shaft 112 can rotate relative to the limiting disk 14. In other words, the limiting disk 14 does not rotate with the eccentric shaft 112. Figure 15 As shown, the inner periphery of the limiting disk 14 is located outside the eccentric shaft 112 , and the inner periphery of the limiting disk 14 is spaced apart from the eccentric shaft 112 .

[0125] The limiting plate 14 is located between the rotating member 111 and the external gear 13 in the extending direction of the rotation axis of the rotating member 111. This makes it easier for the external gear 13 to cooperate with the internal gear 161.

[0126] Optionally, the first limiting portion 172 is one of a limiting protrusion and a limiting groove, the third limiting portion 141 is the other of the limiting protrusion and the limiting groove, the second limiting portion 131 is one of the limiting protrusion and the limiting groove, and the fourth limiting portion 142 is the other of the limiting protrusion and the limiting groove.

[0127] like Figure 11-13 as well as Figure 15 As shown, the first limiting portion 172 includes a first limiting protrusion 172a and a second limiting protrusion 172b disposed opposite to each other on the inner wall of the housing 17. Optionally, the first limiting protrusion 172a and the second limiting protrusion 172b are disposed on the wall surface of the inner cavity 1741.

[0128] The third limiting portion 141 includes a first limiting groove 141a and a second limiting groove 141b disposed opposite each other. The first limiting protrusion 172a is relatively movably engaged within the first limiting groove 141a, and the second limiting protrusion 172b is relatively movably engaged within the second limiting groove 141b. Specifically, the first limiting protrusion 172a is relatively movably engaged within the first limiting groove 141a along the first direction, and the second limiting protrusion 172b is relatively movably engaged within the second limiting groove 141b along the first direction. In other words, the first limiting protrusion 172a and the second limiting protrusion 172b are fixed, while the first limiting groove 141a and the second limiting groove 141b move along the first direction. This allows the limiting disk 14 and the external gear 13 to translate along the first direction.

[0129] like Figure 11-13 as well as Figure 15 As shown, the second limiting portion 131 includes a third limiting protrusion 131a and a fourth limiting protrusion 131b disposed opposite each other on the external gear 13. Alternatively, the first limiting protrusion 172a and the second limiting protrusion 172b are disposed on the end surface of the external gear 13 facing the rotating member 111. The third limiting protrusion 131a, the fourth limiting protrusion 131b, and the external gear 13 may be integrally formed.

[0130] The fourth limiting portion 142 includes a third limiting groove 142a and a fourth limiting groove 142b. The third limiting protrusion 131a is movably engaged within the third limiting groove 142a, and the fourth limiting protrusion 131b is movably engaged within the fourth limiting groove 142b. Specifically, the third limiting protrusion 131a is movably engaged within the third limiting groove 142a along the second direction, and the fourth limiting protrusion 131b is movably engaged within the fourth limiting groove 142b along the second direction. In other words, the third limiting groove 142a and the fourth limiting groove 142b do not move in the second direction, but move in the second direction. This allows the external gear 13 to translate in the second direction.

[0131] Furthermore, the external gear 13 is capable of orbiting around the rotation axis of the rotating member 111 within a first plane, which is parallel to both the first and second directions. In other words, the first plane is the plane in which the first and second directions lie. Optionally, the rotation axis of the rotating member 111 is orthogonal to the plane in which the first and second directions lie, that is, the rotation axis of the rotating member 111 is orthogonal to the first plane. This allows for a more rational structure of the electric rocker arm 1.

[0132] like Figure 11 、 Figure 12 and Figure 15As shown, the line connecting the first limiting groove 141a and the second limiting groove 141b is perpendicular to the line connecting the third limiting groove 142a and the fourth limiting groove 142b. This makes the structure of the electric swing arm 1 more reasonable.

[0133] Optionally, the first limiting protrusion 172a and the second limiting protrusion 172b are arranged opposite to each other in the first radial direction of the rotating member 111, that is, the first limiting protrusion 172a and the second limiting protrusion 172b are arranged opposite to each other in the first radial direction of the external gear 13. The first limiting groove 141a and the second limiting groove 141b are arranged opposite to each other in the first radial direction of the rotating member 111, that is, the first limiting groove 141a and the second limiting groove 141b are arranged opposite to each other in the first radial direction of the external gear 13. Figure 11 、 Figure 12 and Figure 15 As shown, the first limiting protrusion 172a and the second limiting protrusion 172b are arranged opposite to each other in the first direction, and the first limiting groove 141a and the second limiting groove 141b are arranged opposite to each other in the first direction. This can make the structure of the electric rocker arm 1 more reasonable.

[0134] Optionally, the third limiting protrusion 131a and the fourth limiting protrusion 131b are arranged opposite to each other in the second radial direction of the rotating member 111, that is, the third limiting protrusion 131a and the fourth limiting protrusion 131b are arranged opposite to each other in the second radial direction of the external gear 13. The third limiting groove 142a and the fourth limiting groove 142b are arranged opposite to each other in the second radial direction of the rotating member 111, that is, the third limiting groove 142a and the fourth limiting groove 142b are arranged opposite to each other in the second radial direction of the external gear 13. Figure 11 、 Figure 12 and Figure 15 As shown, the third limiting protrusion 131a and the fourth limiting protrusion 131b are arranged opposite to each other in the second direction, and the third limiting groove 142a and the fourth limiting groove 142b are arranged opposite to each other in the second direction. This can make the structure of the electric rocker 1 more reasonable.

[0135] like Figure 11 、 Figure 12 、 Figure 14 and Figure 15 As shown, the limiting plate 14 has a central hole 143, a first limiting groove 141a and a second limiting groove 141b are provided on the outer periphery of the limiting plate 14 and open outward, and a third limiting groove 142a and a fourth limiting groove 142b are provided on the inner periphery of the limiting plate 14 and open inward. The third limiting protrusion 131a and the fourth limiting protrusion 131b are adjacent to the outer periphery of the external gear 13 and are located inside the teeth of the external gear 13.

[0136] Optionally, the dimension of the limiting plate 14 in the first direction is larger than the dimension of the limiting plate 14 in the second direction. This makes it easier to assemble the limiting plate 14 with the housing 17 and the external gear 13, thereby making it easier to assemble the electric rocker arm 1. For example, the limiting plate 14 can be generally elliptical.

[0137] like Figure 14 and Figure 16 As shown, the internal gear 161 is rotatably mounted on the housing 17 and meshes with the external gear 13. Optionally, the rotation axis of the rotating member 111 coincides with the rotation axis of the internal gear 161. This makes the structure of the electric rocker 1 more reasonable.

[0138] like Figure 11 、 Figure 12 and Figure 14 As shown, internal gear 161 includes an inner gear ring 1611 and a base plate 1612 for covering one end of inner gear ring 1611. The teeth of internal gear 161 are formed on the inner wall of inner gear ring 1611, and swing arm 162 is fixed to base plate 1612. This makes the structure of internal gear 161 more rational. Internal gear ring 1611 and base plate 1612 can be integrally formed to improve the structural strength of internal gear 161.

[0139] like Figure 10-12 As shown, the base plate 1612 is provided with a first positioning hole 1613, the swing arm 162 is provided with a second positioning hole 1621 aligned with the first positioning hole 1613, and the installation positioning shaft 163 passes through the eccentric shaft 112 and fits into the first positioning hole 1613 and the second positioning hole 1621. This improves the assembly accuracy of the electric swing arm 1.

[0140] The rotational speed of the motor 121 of the electric swing arm 1 according to the embodiment of the present invention is n1, and the torque of the motor 121 is T1. The transmission ratio (speed ratio) of the electric swing arm 1 according to the embodiment of the present invention is i = {z2×z3 / [z1×(z4-z3)]}≥2000, z1=1, z4-z3≥1. Here, z1 is the number of teeth on the first gear 122, z2 is the number of teeth on the second gear, z3 is the number of teeth on the outer gear 13, and z4 is the number of teeth on the inner gear 161.

[0141] According to the embodiment of the present invention, the swing speed of the swing arm 162 of the electric swing arm 1 is n2=n1 / i, the torque of the swing arm 162 is T2=T1×i×η, η=0.6-0.8, and the swing range of the swing arm 162 is 0°-300°.

[0142] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0143] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0144] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0145] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0146] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0147] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A nursing bed, characterized in that: include: Bed; and A wheelchair, the wheelchair having a state of being combined with the bed and a state of being separated from the bed, the wheelchair comprising a seat and a seat plate, the seat plate having a flattened state and a folded state, the seat plate being arranged on the seat, wherein the seat plate is provided with a drainage hole, and the seat having a receiving space that is in communication with the drainage hole and for allowing a drainage receiving device to enter and exit; A seat plate, the seat plate being arranged on the chair seat and provided with the drainage hole; A leg panel, the leg panel being hinged to the seat panel and being capable of swinging and / or lifting relative to the seat; a back panel, the back panel being hinged to the seat panel and being capable of swinging and / or lifting relative to the seat; and A footboard, the footboard being hinged to the legboard, The nursing bed further includes a first driving member, which is an electric swing arm; The electric swing arm comprises: A shell, the shell being arranged on the seat, and a first limiting portion being arranged in the shell; a rotating member and an eccentric shaft, wherein the eccentric shaft is provided on the rotating member, and an axis of the eccentric shaft is parallel to and eccentrically arranged relative to a rotation axis of the rotating member; a motor, the motor being configured to drive the rotating member and the eccentric shaft to rotate about a rotation axis of the rotating member; an internal gear rotatably disposed on the housing; an external gear, the external gear being sleeved on the eccentric shaft and rotatable relative to the eccentric shaft, the external gear being provided with a second limiting portion, the internal gear being meshed with the external gear; a limiting plate, the limiting plate being located between the rotating member and the external gear, the limiting plate having a third limiting portion and a fourth limiting portion, the first limiting portion and the third limiting portion being movably engaged with each other, and the second limiting portion and the fourth limiting portion being movably engaged with each other, so as to allow the external gear to translate along a first direction and a second direction orthogonal to the first direction; and a swing arm, the swing arm being connected to the internal gear so as to be driven to swing by the internal gear, the swing arm being hinged to the foot plate so as to drive the leg plate and the foot plate to swing and / or rise and fall relative to the seat; The nursing bed further includes a connecting rod and a push rod, the connecting rod is hinged to the swing arm of the first driving member, the push rod is rotatably provided on the seat, and the push rod is hinged to each of the backboard and the connecting rod; The footboard includes: Foot pedal; a first connecting portion, the first connecting portion being orthogonal to the footrest portion and connected to the footrest portion, one of the footrest portion and the first connecting portion being hinged to the leg plate; and a second connecting portion, the second connecting portion being orthogonal to the first connecting portion and connected to the first connecting portion, the second connecting portion being hinged to the swing arm of the first driving member, Alternatively, the footboard and the legboard are both flat plates, the footboard and the legboard of the chair board in the flattened state are located in the same plane, and the footboard of the chair board in the folded state is perpendicular to the legboard.

2. The nursing bed according to claim 1, characterized in that The bed body includes a first restraining portion and a second restraining portion, the first restraining portion and the second restraining portion are spaced apart in a width direction of the bed body, a placement space is formed between the first restraining portion and the second restraining portion, at least a portion of the wheelchair in the engaged state is located in the placement space, and at least a portion of the wheelchair in the disengaged state is detached from the placement space; or The bed has a placement space, one end of the placement space is open in the width direction of the bed, and one end of the placement space is open in the length direction of the bed. At least a portion of the wheelchair in the engaged state is located in the placement space, and at least a portion of the wheelchair in the disengaged state is detached from the placement space.

3. The nursing bed according to claim 1, characterized in that The connecting rod has a first end and a second end opposite to each other in its extension direction, the first end is hinged to the swing arm of the first driving member, and the push rod has a third end and a fourth end opposite to each other in its extension direction, the third end is hinged to the second end, and the fourth end is hinged to the back plate.

4. The nursing bed according to claim 1, characterized in that Further including: a first guide member, the first guide member being provided on the leg plate, the first guide member having a second sliding groove extending along the length direction of the leg plate; a first sliding member, the first sliding member being hinged to the swing arm of the first driving member, and the first sliding member being movably engaged in the second sliding groove along the length direction of the leg plate; a second guide member provided on the back plate, the second guide member having a third sliding groove extending along the length direction of the back plate; and A second sliding member is hinged to the push rod, and the second sliding member is movably engaged in the third sliding groove along the length direction of the back plate.

5. The nursing bed according to claim 4, characterized in that: The first sliding member is a first roller or a first slider, and the first roller is rotatably provided on the swing arm of the first driving member. The second sliding member is a second roller or a second slider, and the second roller is rotatably provided on the push rod.

6. The nursing bed according to claim 1, characterized in that The footrest portion and the second connection portion are both arranged horizontally, and the first connection portion is arranged vertically.

7. The nursing bed according to claim 1, characterized in that The back plate, the seat plate and the leg plate are arranged along a first preset direction, and the chair seat comprises: a first side frame and a second side frame, the first side frame and the second side frame being spaced apart along a second preset direction, the first preset direction being orthogonal to the second preset direction, each of the first side frame and the second side frame having a fifth end and a sixth end opposite to each other in the first preset direction, the fifth end being adjacent to the leg plate opposite to the sixth end in the first preset direction; and A connecting member, one end of which is connected to the fifth end of the first side frame, and the other end of which is connected to the fifth end of the second side frame.

8. The nursing bed according to claim 7, characterized in that: There are two first driving members, one of which is provided on the first side frame, and the other of which is provided on the second side frame. The swing arms of the two first driving members are connected via a connecting shaft.

9. The nursing bed according to any one of claims 1 to 8, characterized in that: The axis of the motor shaft of the motor is orthogonal to the rotation axis of the rotating member; The rotation axis of the rotating member is orthogonal to the plane where the first direction and the second direction are located; The rotation axis of the rotating member coincides with the rotation axis of the internal gear. A first gear is provided on the motor shaft. The first gear is detachably mounted on the motor shaft or formed integrally with the motor shaft. The rotating member is a second gear meshing with the first gear. The first gear is a helical gear and the second gear is a bevel gear.

10. The nursing bed according to any one of claims 1 to 8, characterized in that: The first limiting portion is one of the limiting protrusion and the limiting groove, the third limiting portion is the other of the limiting protrusion and the limiting groove, the first limiting portion includes a first limiting protrusion and a second limiting protrusion arranged on the inner wall of the shell opposite to each other, the third limiting portion includes a first limiting groove and a second limiting groove arranged opposite to each other, the first limiting protrusion can be relatively movably fitted in the first limiting groove, the second limiting protrusion can be relatively movably fitted in the second limiting groove, the second limiting portion is one of the limiting protrusion and the limiting groove, and the fourth limiting portion is the other of the limiting protrusion and the limiting groove.

11. The nursing bed according to claim 10, characterized in that: The second limiting portion includes a third limiting protrusion and a fourth limiting protrusion which are arranged on the external gear relative to each other, and the fourth limiting portion includes a third limiting groove and a fourth limiting groove. The third limiting protrusion can be movably engaged in the third limiting groove, and the fourth limiting protrusion can be movably engaged in the fourth limiting groove.

12. The nursing bed according to claim 11, characterized in that: The limiting plate has a center hole, the first limiting groove and the second limiting groove are arranged on the outer periphery of the limiting plate and open outward, the third limiting groove and the fourth limiting groove are arranged on the inner periphery of the limiting plate and open inward, wherein the first limiting groove and the second limiting groove are arranged opposite to each other in the first direction, the third limiting groove and the fourth limiting groove are arranged opposite to each other in the second direction, the third limiting protrusion and the fourth limiting protrusion are adjacent to the outer periphery of the external gear and are located on the inner side of the teeth of the external gear, A receiving hole is provided in the wall of the housing, and the internal gear is rotatably disposed in the receiving hole. The internal gear includes an inner gear ring and a bottom plate for covering one end of the inner gear ring. The teeth of the internal gear are formed on the inner wall of the inner gear ring. The swing arm is fixed on the bottom plate.

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