TWI676442B - Bed frame structure - Google Patents

Abstract

A bed frame structure includes a reference bed body and a side-moving lifting bed body. The reference bed body includes a reference bed frame and a fixed bed portion. The fixed bed portion includes a main body portion and a plurality of branch portions. The side-moving lifting bed body comprises: a side-moving bed frame base, a jack device and a lifting portion. The branch portions extend laterally from the main body portion and are arranged at intervals in the longitudinal direction to form a plurality of spaced-apart lifter moving spaces arranged with the main body portion. The branch portions do not meet each other. The position of the lifting support of each lifting part corresponds to a position of the moving support space of the lifting support. The lifting support uses a jack device to move up and down through the moving support lifting space, so that the top of the lifting support is higher than , Lower than or equal to the top of the branch.

Description

Bed frame structure

The invention relates to a bed frame, in particular to a bed frame structure with two structural designs of a reference bed and a side-shifting lifting bed to facilitate the movement or transportation of users.

A bed is a common bedding for the human body to lie down, and it is also an aid for a patient or a person with reduced mobility in a hospital or a nursing home. The bed used in a hospital or nursing home needs to meet the care needs of bedridden patients in addition to lying on the bed for patients or people with reduced mobility.

However, patients who have been in bed for a long time or who have just undergone major surgery often have difficulty moving on their own, unable to get out of bed by themselves, or even get up and turn over to take care of themselves. In contrast to caregivers who care for this type of bedridden, it is a labor-intensive task to move the bedridden, get the bedridden up, and turn over. Although there are beds on the market with lifting and sitting functions, these beds are bulky and difficult to move, which is inconvenient for caregivers or medical staff.

Therefore, how to propose an invention so that the bed body can more easily move the bedridden person is an important subject at present.

The technical means adopted by the present invention to solve the problems of the conventional technology is to provide a bed frame structure, which defines a longitudinal direction and a lateral direction perpendicular to each other. The bed frame structure includes: a reference bed And one side of the lifting bed body. The reference bed system includes a reference bed frame and a fixed bed portion. The reference bed frame has a bed portion support portion. The reference bed frame is provided with a side-moving bed frame seat matching portion. The fixed bed portion includes a main body portion and a number of Branch portions, the main body portion being provided on the bed support portion, the branch portions extending from the main body portion to the lateral direction and being arranged at intervals in the longitudinal direction to form a plurality of spaced-apart elevations with the main body portion Space for branch activities, these branches do not meet each other. The side-moving lifting bed system includes: a side-moving bed frame base, a jack device, and a lifting portion. The side-moving bed frame base is provided with a reference bed frame matching piece, and the reference bed frame matching piece and the side moving bed frame base are provided. The matching part is correspondingly arranged in such a manner that relative movement can be generated in the lateral direction; the jack device is provided on the side-moving bed frame base, the jack device has a lifting and moving part, and the lifting and moving part is controlled and performed Lifting and moving; the lifting part includes a plurality of lifting supports and a series of connecting pieces, the lifting supports are arranged at intervals along the longitudinal direction, the series connecting components are connected and connected in series to all of the lifting supports, The lifting part is connected to the lifting and moving part and moves up and down with the lifting and moving of the lifting and moving part; wherein, in a state where the side bed support and the reference bed support are combined, the position of each of the lifting supports Corresponding to a position of the movable space of the lifting support; wherein, in the state where the side-moving bed base and the reference bed support are combined, the lifting supports pass through the lifting moving parts as they move up and down Lift Member space, adjusting the top support member of the plurality of lift above, Either below the tops of the branches or as high as the tops of the branches.

According to an embodiment of the present invention, a bed frame structure is provided, wherein the bed frame structure defines a first lateral axis and a second lateral axis parallel to each other along the lateral direction, and the bed frame structure further includes a head end The pivoting actuating member and a tail end pivoting actuating member, wherein: the body portion includes a head end body portion, a central body portion, and a tail end body portion, and the head end body portion uses the first lateral axis It is pivotally connected to one end of the central body part for pivot axis, the tail end body part is pivotally connected to the other end of the central body part with the second lateral axis as the pivot axis, and the branch parts are respectively from the center The main body portion, the head end main body portion and the tail end main body portion extend in the lateral direction. The lifting portion includes a head end lifting portion, a central lifting portion and a tail lifting portion. The head end lifting portion, the center The lifting section and the tail lifting section are sequentially arranged along the longitudinal direction. The lifting supports include a plurality of head lifting supports, a plurality of central lifting supports, and a plurality of tail lifting supports. Supports, the central lifting supports, and the tail ends The descending members are sequentially arranged along the longitudinal direction, and the concatenation member includes a head end concatenation member, a central concatenation member, and a tail end concatenation member, the head end concatenation member, the central concatenation member, and the tail end. The concatenated parts are sequentially arranged along the longitudinal direction. The head end lifting part includes the head end lifting supports and the head end connecting part. The central lifting part includes the central lifting supports and the central concatenating part. The tail lifting portion includes the tail lifting pieces and the tail connecting piece, the head end connecting piece is connected to the head lifting pieces in series, and the central connecting piece is connected to the centers in series. The lifting end piece, the tail end connecting piece is connected in series with the tail end lifting pieces, and the head end lifting piece closest to the central lifting pieces is pivotally connected to the lifting moving portion, and the head end lifting portion A head-end stop is provided. When the head-end stop is in contact with the lifting and moving part, the head-end lifting support cannot pivot downward. The central lifting part is connected to the lifting and moving part, and The central lifting support is closest to the lifting end of the lifting end which is pivotally connected to the lifting moving part. Rotation stop part, when the tail end rotation part abuts against the lifting and moving part, the tail end lifting support cannot pivot downward; one end of the head end pivoting actuating member is pivotally connected to one head end lifting The other end of the support is provided on the side-moving bed frame base and is controlled to perform a reciprocating motion or stop motion; and one end of the tail-end pivoting actuating member is pivotally connected to one of the tail-lifting support members, and One end is arranged on the side-moving bed frame base and is controlled to perform a reciprocating motion or stop motion.

In one embodiment of the present invention, a bed frame structure is provided, wherein the head-end pivoting actuating member includes a head-end reciprocating power unit, a head-end linking member, and a head-end pushing member, and the head-end pushing member pivots Connected to a head-end lifting support, the head-end linking member is connected to the head-end pushing member and is in contact with the head-end reciprocating power unit, and the head-end reciprocating power unit is arranged on the side-moving bed frame base And is controlled to perform a reciprocating motion or stop motion; and the tail-end pivoting actuating member includes a tail-end reciprocating power unit, a tail-end linkage member, and a tail-end pushing member, and the tail-end pushing member is a pivot Connected to a tail end lifting support, the tail end linkage member is connected to the tail end pushing member and is in contact with the tail end reciprocating power unit, and the tail end reciprocating power unit is arranged on the side-moving bed frame base , And controlled to perform a reciprocating motion or stop motion.

In one embodiment of the present invention, a bed frame structure is provided. The bed frame structure defines a longitudinal axis along the longitudinal direction. The side-shifting lifting bed further includes a reversing actuating unit. The central concatenating member is rotatably disposed on the lifting movement by using the longitudinal axis as a rotation axis. The central lifting supports have a contact portion of a flip actuation unit, and the flip actuation unit contacts the contact portion of the flip actuation unit and is controlled to perform a reciprocating motion.

According to an embodiment of the present invention, a bed frame structure is provided, wherein the jack device further includes a link member and a moving unit, the link member is provided on the side-moving bed frame base, and the lifting and moving portion is provided. In the link member, the actuating unit is connected to the link member, and the actuating unit is controlled to reciprocate to cause the lifting and moving portion to move up and down.

According to an embodiment of the present invention, a bed frame structure is provided, wherein the number of the lifting and moving parts is two, two of the lifting and moving parts are arranged along the longitudinal direction, and the number of the link members is two, two The link members are arranged along the longitudinal direction and correspond to the positions of the two moving parts. The two link members are connected with a unit of pushing unit, and one link member includes two pivot joints. A pair of cross-shaped connecting rods at the center, two of which are connected to each other to be pivoted up and down, the side-moving bed base is provided with a slide rail, and a connecting rod of the lower connecting rod pair is pivotally connected to the The slide rail of the side-moving bed frame base, and the other link of the lower link pair is slidably provided on the slide rail of the side-moving bed frame base. The lifting and moving part is provided with a slide rail. One link of the link pair is pivotally connected to the slide rail provided on the lifting and moving part, and the other link of the upper link pair is slidably provided on the slide rail provided on the lifting and moving part. , The two pairs of the links below A pivot rod is pivotally connected, and the two pairs of the upper links are pivotally synchronized by a pivot rod. The actuating unit is controlled to lift the actuating unit pushing portion.

In one embodiment of the present invention, a bed frame structure is provided, wherein the reference bed frame fitting is a roller and / or a gear, the side-moving bed frame seat fitting is a track and / or a rack, and the gear is An electric motor.

According to an embodiment of the present invention, a bed frame structure is provided, wherein the body portion is an elongated body, the branch portions are elongated bodies parallel to each other along the lateral direction, and the body portion and the points The branches are perpendicular to each other.

In one embodiment of the present invention, a bed frame structure is provided, wherein the head-end linkage member includes two first links of the same size and two second links of the same size, and the head-end pushing member is Two links of the same size, one end of the first links are pivotally connected to the side bed base, and the other ends of the first links are each pivotally connected to one of the second links and the second links Each of the rods is pivotally connected to the head-end pushing member, and a power unit ejection plate is connected between the first links. When the head-end reciprocating power unit is controlled to push against the power unit ejection plate, the The first links are pivoted, so that the second links each drive a head-end pushing member.

According to an embodiment of the present invention, a bed frame structure is provided, wherein the tail end linkage member includes two first links of the same size and two second links of the same size, and the tail end pushing member is Two links of the same size, one end of the first links are pivotally connected to the side bed base, and the other ends of the first links are each pivotally connected to one of the second links and the second links The rods are pivoted one by one The rear end pusher is connected with a power unit ejection plate between the first links. When the rear end reciprocating power unit is controlled to be ejected on the power unit ejection plate, the first links are pivoted. , So that the second connecting rods each drive a tail end pushing member.

In one embodiment of the present invention, a bed frame structure is provided, wherein the head-end lifting supports, the central lifting supports, and the tail-end lifting supports all have lower recesses, and each of the lower recesses has a through hole. Hole, the head-end series connection piece, the through-holes connection and series connection of all the head-end lifting support, the central series connection device is connected and series connection through the through-holes, all the central lifting support, the tail The end-series connecting members are connected through the through holes and all the tail-end lifting members are connected in series.

Through the technical means of the present invention, a bed frame structure is proposed. In the bed frame structure, the reference bed body and the side-shift lifting bed body are relatively moved to be combined or completely separated. After being separated from the reference bed body, the side-shifting lifting bed is still a movable independent bed body, but the weight is lighter than the entire bed frame structure, so it is more convenient to move the bedrider. In the state where the side-moving lifting bed is combined with the reference bed, the lifting part can be moved up and down, and the bedridden can be raised or lowered horizontally. The side-moving bed stand can be moved along the side, so Move the bedridden to a lying position on the bed frame structure.

Furthermore, in a state where the side-shifting lifting bed is combined with the reference bed, the head-end lifting portion of the side-moving lifting bed and the head-end body portion of the reference bed can be pivoted upward, and The bedridden is changed from a lying posture to a sitting posture; the tail end lifting portion of the side-moving lifting bed body and the tail end body of the reference bed body The part can be pivoted upwards so that the lower body and legs of the bedridden can be raised.

Further, in a state where the side-moving lifting bed body is combined with the reference bed body, the central lifting support member can roll the longitudinal axis through the central stringer to turn the bedridder's back. Therefore, the bed frame structure of the present invention can achieve both moving, carrying and lifting of the bedridden, changing the bedridden from a lying state to a sitting state, raising the lower body and legs of the bedridden person, and placing the bedridden person in a lying state Turn over and other functions.

100‧‧‧ Bed frame structure

1‧‧‧ reference bed

10‧‧‧ benchmark bed frame

101‧‧‧bed support

102‧‧‧Side-moving bed frame seat fitting

103‧‧‧ Wheel

11‧‧‧ fixed bed

111‧‧‧Body

111a‧‧‧Head end body part

111b‧‧‧ Central Body

111c‧‧‧Tail end body part

112‧‧‧Branch

112a‧‧‧Branch

112b‧‧‧Branch

112c‧‧‧Branch

2‧‧‧side lift bed

20‧‧‧Side bed support

201‧‧‧ Reference Bed Frame Fittings

202‧‧‧roller

203‧‧‧Slide

21‧‧‧ Lifting Department

211‧‧‧lifting support

212‧‧‧Concatenation

21a‧‧‧Head-end lifting section

211a‧‧‧Head-end lifting support

212a‧‧‧Head-end Series

213a‧‧‧Head end stop

21b‧‧‧ Central Lifting Department

211b‧‧‧ central lifting support

212b‧‧‧central series

21c‧‧‧Tail lift

211c‧‧‧Tail end lifting support

212c‧‧‧Tail end series

213c‧‧‧Tail end stop

2111‧‧‧ Overturn actuation unit contact

2112‧‧‧Down recess

21121‧‧‧through hole

3‧‧‧ jack device

31‧‧‧ Lifting and moving section

311‧‧‧Slide

32‧‧‧ connecting rod member

321‧‧‧ connecting rod pair

322‧‧‧ connecting rod pair

323‧‧‧Activation unit pushing section

33‧‧‧Actuation unit

341‧‧‧ Pivot Post

342‧‧‧ Pivot Post

35‧‧‧Strength

4‧‧‧Head end pivoting actuating member

41‧‧‧Head-end reciprocating power unit

411‧‧‧roller

42‧‧‧Head-end linkage

421‧‧‧First connecting rod

422‧‧‧Second link

423‧‧‧Power unit ejector plate

43‧‧‧Head end push

5‧‧‧Tail end pivot actuating member

51‧‧‧Tail end reciprocating power unit

511‧‧‧roller

52‧‧‧Tail end linkage member

521‧‧‧First connecting rod

522‧‧‧Second Link

523‧‧‧Power unit ejector plate

53‧‧‧Push end

6‧‧‧ flip actuation unit

7‧‧‧ Guardrail

RA‧‧‧longitudinal axis

PA1‧‧‧first lateral axis

PA2‧‧‧Second lateral axis

X‧‧‧ Longitudinal

Y‧‧‧ lateral direction

SP‧‧‧ Lifting Space

M‧‧‧ Electric Motor

h‧‧‧horizontal displacement

v‧‧‧Vertical displacement

Figure 1a is a schematic diagram of an embodiment of the bed frame structure of the present invention.

Figure 1b is a schematic diagram of the relative movement between the reference bed and the side-moving lifting bed of the bed frame structure of the present invention.

Figure 1c is a schematic diagram of the completely separated state between the reference bed and the side-shifting lifting bed of the bed frame structure of the present invention.

Fig. 1d is another schematic perspective view of an embodiment of the reference bed and the side-shifting lifting bed of the bed frame structure of the present invention.

Fig. 2a is a schematic diagram of an embodiment of the reference bed body of the bed frame structure of the present invention.

Fig. 2b is a schematic diagram of an embodiment of a side-moving lifting bed of the bed frame structure of the present invention.

Fig. 3a is a schematic perspective view of the rising state of the lifting part of the side-moving lifting bed body of the bed frame structure of the present invention.

Fig. 3b is a side view of the bed frame structure of the present invention above the lifting portion of the lifting bed body Front view.

Fig. 3c is a schematic perspective view of the lowered state of the lifting part of the side-moving lifting bed body of the bed frame structure of the present invention.

Figure 3d is a front view of the lowered state of the lifting part of the side-moving lifting bed body of the bed frame structure of the present invention.

Figure 3e is a side view of the unlifted state of the lifting part of the side-moving lifting bed body of the bed frame structure of the present invention.

Fig. 3f is a side view of the raised state of the lifting portion of the bed frame structure of the present invention when the bed is moved sideways.

Figure 3g is a side view of the lifting state of the lifting part of the side-shifting lifting bed body and the side-moving state of the side-moving lifting bed body of the bed frame structure of the present invention.

Figure 3h is a side view of the lowered state of the lifting portion of the side-moving lifting bed body of the bed frame structure of the present invention and the side-moving state of the side-moving lifting bed body.

Figure 4a is a schematic perspective view of the pivoting state of the head end lifting portion of the bed frame structure of the present invention.

Figure 4b is a front view of the head end lifting portion of the bed frame structure of the present invention in a pivoting state.

Fig. 4c is a schematic perspective view of the pivoting state of the tail lifting portion of the bed frame structure of the present invention.

Figure 4d is a front view of the pivoting state of the tail lift portion of the bed frame structure of the present invention.

Figure 5a is a head end lifting portion of a side-moving lifting bed body of the bed frame structure of the present invention Front view of the pivoting state of the tail lift.

Figure 5b is a front view of the head end body portion and the tail end body portion of the reference bed body of the bed frame structure of the present invention in an un-pivoted state.

Figure 6a is a schematic view of the rolling state of the central lifting support of the bed frame structure of the present invention.

Figure 6b is a view in the direction A-A in Figure 6a.

Figure 6c is a schematic view of the rolling state of the central lifting support of the bed frame structure of the present invention.

Figure 6d is a view in the direction of B-B in Figure 6c.

FIG. 7a is a schematic diagram of an embodiment of the jack device of the bed frame structure of the present invention.

FIG. 7b is a schematic diagram of an operation of an embodiment of the jack device of the bed frame structure of the present invention.

FIG. 8 is a schematic diagram of an embodiment of a lifting support and a series connection member of the bed frame structure of the present invention.

FIG. 9 is a schematic diagram of a guardrail of the bed frame structure of the present invention.

Embodiments of the present invention will be described below with reference to Figs. 1a to 7. The drawings and description are only for assisting understanding of the present invention, and are only one embodiment of the present invention, and are not intended to limit the embodiments of the present invention.

Please refer to FIG. 1 a, which discloses a bed frame structure 100. The bed frame structure 100 defines a longitudinal direction X and a side direction which are perpendicular to each other. To Y. For descriptive convenience, the direction in which the human body is generally lying is defined as the longitudinal direction X.

The bed frame structure 100 includes a reference bed 1 and a side-moving lifting bed 2. The bed frame structure 100 is formed by combining the reference bed 1 and the side-moving lifting bed 2 along the lateral direction Y.

Referring to FIG. 2a, an embodiment of the reference bed 1 is shown. The reference bed 1 includes a reference bed frame 10 and a fixed bed portion 11.

The reference bed frame 10 has a bed portion supporting portion 101, and the reference bed frame 10 is provided with a side moving bed frame seat matching portion 102. The reference bed frame 10 is provided with a roller 103 to facilitate movement.

The fixed bed portion 11 includes a main body portion 111 and a plurality of branch portions 112. The body portion 111 is provided on the bed support portion 101. The branch portions 112 extend from the main body portion 111 in the lateral direction Y and are arranged at intervals along the longitudinal direction X. The branch portions 112 do not meet each other. The branch portions 112 and the main body portion 111 form a plurality of spaced-apart lifter moving spaces SP. Preferably, as shown in the figure, the branch portions 112 are elongated bodies parallel to each other along the lateral direction Y, and the main body portion 111 is an elongated body extending along the longitudinal direction X. The main body portion 111 is perpendicular to the branch portions 112.

Please refer to FIG. 2b, which shows an embodiment of the side-shifting lifting bed body 2. The side-moving lifting bed body 2 includes: a side-moving bed frame base 20, a lifting portion 21, and a jack device 3.

The side-moving bed frame base 20 is provided with a reference bed frame fitting 201, and the base The quasi-bed frame mating member 201 and the side-moving bed frame seat mating portion 102 are correspondingly arranged in a manner capable of generating relative movement in the lateral direction Y. In one embodiment, the reference bed frame fitting 201 is a roller and / or a gear, and the side-moving bed frame seat matching portion 102 provided on the reference bed frame 10 is a track and / or a rack.

In one embodiment, as shown in Fig. 1d, the gear is connected to an electric motor M, which is controlled to rotate, thereby driving the gear to rotate and move on the rack. In this way, a relative movement in the lateral direction Y is generated between the reference bed frame fitting piece 201 and the side-moving bed frame seat matching portion 102, so that the side-moving lifting bed body 2 and the reference bed body 1 are relatively moved. To join or separate, and change the joint position along the lateral direction. The side-moving bed frame base 20 is provided with a roller 202 that is in contact with the ground to facilitate movement. Other devices that facilitate the movement of the side-moving bed frame base 20 are also feasible.

The jack device 3 is arranged on the side-moving bed frame base 20. The jack device 3 has a lifting and moving part 31 which is controlled to perform lifting and moving. In the present embodiment, the jack device 3 further includes a link member 32 and an actuating unit 33. The link member 32 is provided on the side-moving bed base 20, and the lifting and moving portion 31 is provided on the link member 32. The actuating unit 33 is connected to the link member 32, and the actuating unit 33 is controlled to perform reciprocating movements to cause the lifting and moving portion 31 to move up and down. In this embodiment, there are two lifting and moving parts 31 arranged along the longitudinal direction X. The lifting and moving parts 31 are a long column, and the length direction of the column is toward the lateral direction Y. The actuation unit 33 can use hydraulic pressure as an actuation method, and can be controlled in a wired or wireless manner.

Please refer to FIG. 3a to FIG. 3d and FIG. 7a and FIG. 7b. In this embodiment, the number of the lifting and moving parts 31 is two, which are arranged along the longitudinal direction X. The number of the link members 32 is also two, which are arranged along the longitudinal direction X and correspond to the positions of the two lifting and moving portions 31 respectively. An actuating unit pushing portion 323 is connected between the two link members 32.

One of the link members 32 includes two cross-shaped link pairs 321 and 322 pivotally connected to the center, and the two link pairs 321 and 322 are pivotally connected up and down. One link of the lower link pair 321 is pivotally connected to a slide rail 203 provided on the side-moving bed base 20, and the other link of the lower link pair 321 is provided in a slidable manner.于此 滑杆 203 In the slide rail 203. A link of an upper link pair 322 is pivotally connected to a slide rail 311 provided on the bottom surface of the elevating and moving part 31, and another upper link is slidably disposed on the slide rail 311.

In this embodiment, the two lower link pairs 321 are each pivotally connected with a pivot rod 341, and the two upper link pairs 322 are pivoted synchronously with a pivot rod 342. When the jack device 3 lifts a heavy object, the pivot rod 342 also has the effect of stabilizing the jack device 3. In this embodiment, the actuating unit pushing portion 323 is a rod member that connects two links of the two link members 32, and the actuating unit pushing portion 323 also has the effect of stabilizing the jack device 3. In this embodiment, the actuating unit pushing portion 323 is connected to the end of the two slidable links in the lower link pair 321, which is close to the upper link pair 322, as shown in Figures 7a and 7b. . In addition, different numbers of reinforcing rods 35 may be provided between the two link pairs 321 and the two link pairs 322 according to circumstances.

When the actuating unit 33 is controlled to move and push against the actuating unit pushing portion 323, the actuating unit pushing portion 323 will drive the links in the pair of links 321, 322 to move, at this time in In the lower link pair 321, the slidably arranged link will generate a horizontal displacement h, and the top of the two links in the upper link pair 322 will generate a vertical displacement v with the lifting and moving portion 31. The distance of the vertical displacement v is twice the horizontal displacement h. Therefore, the actuating unit 33 does not need to raise too much height to raise the lifting and moving portion 31 to a sufficient height.

The lifting portion 21 includes a plurality of lifting supports 211 and a series of connecting pieces 212. The lifting supports 211 are arranged at intervals along the longitudinal direction X. The series connection member 212 connects and connects all the lifting supports 211. The elevating portion 21 is connected to the elevating and moving portion 31 and moves up and down in accordance with the elevating movement of the elevating and moving portion 31.

As shown in Fig. 1a, in a state where the side-moving lifting bed 2 and the reference bed 1 are combined, the position of each lifting support 211 corresponds to a position of the lifting support moving space SP. As shown in FIG. 1b and FIG. 1c, with the relative movement of the side-moving lifting bed 2 and the reference bed 1, the lifting supports 211 can enter and exit the lifting support moving space SP from the lateral direction Y. .

As shown in Figs. 1a to 1c and Figs. 3a to 3d, in the state where the side bed frame 20 and the reference bed frame 10 are combined, the lifting supports 211 are attached to the jack device 3 The ascending and descending movement of the elevating and moving part 31 passes through the elevating support moving space SP, and the tops of the elevating supports 211 are adjusted to be higher than, or lower than, the tops of the branch parts 112, or to the branches 112 Top Department contour. Therefore, a bedrider lying on the bed frame structure 100 can vertically extend and lower as the lifting supports 211 are raised and lowered, and move the position of the lifting bed 2 back and forth to the lateral direction Y as the side moves.

As shown in Fig. 1c, after the side-moving lifting bed 2 is completely separated from the reference bed 1, it is an independently movable bed. The side-moving lifting bed body 2 can be pushed elsewhere to be combined with other reference bed bodies 1 to complete the process of replacing the hospital bed.

As shown in FIG. 1a and FIG. 1b, in a state where the side-moving lifting bed body 2 and the reference bed 1 are not completely separated, repeating the lifting of the lifting supports 211 and the side-moving reciprocating operation can adjust the bedrider. Bed position. Please refer to FIG. 3e. At first, the bedridden person is supported by the branches 112 and the lifting supports 211 having the same height on the top surface. Then, as shown in FIG. 3f and FIG. 3g, the bedridden person may be raised. The lifting supports 211 are supported, and the lifting bed body 2 moves to the left in the lateral direction along with the lateral movement of the lifting bed body 2, and then as shown in FIG. 3h, the lifting supports 211 are lowered to the top surface lower than the The top surfaces of the branch portions 112 of the reference bed 1 are supported by the branch portions 112 at this time. Finally, from the state shown in FIG. 3h, the side-moving lifting bed body 2 can be moved to the right and in the opposite direction, and the lifting supports 211 are raised to the same height as the branch portions 112, and returns to FIG. 3e. And Figure 1a. The bedridden person has now moved in this lateral direction Y. Repeatedly operating in the above manner, the caregiver can use the side-moving lifting bed body 2 and the lifting supports 211 to move the bedridden in the lateral direction Y at the position of the bed frame structure 100, without the need to directly force the bedridden . Because the side-moving lifting bed body 2 has a lighter weight than the entire bed frame structure 100, when the bed frame structure 100 is applied to a hospital or a nursing machine During construction, it is easier to move the bedridden to the consulting room, the operating room, or to change the bedridden to the ward or bed.

When the side-moving lifting bed 2 and the reference bed 1 are combined by the reference bed frame fitting 201 (roller and gear) and the side-moving bed frame seat fitting portion 102 (track and rack), Since the track and rack are located below the side-moving bed frame base 20, the side-moving lifting bed body 2 can press the reference bed body 1. Therefore, for a bedrider lying on one end of the branch portions 112 away from the main body portion 111, the side-moving lifting bed body 2 can make the reference bed body 1 not easily overturn sideways.

Further, as shown in FIGS. 1 a and 4 a to 4 d, in this embodiment, the bed frame structure 100 further includes a head-end pivoting actuating member 4 and a tail-end pivoting actuating member 5.

The bed frame structure 100 defines a first lateral axis PA1 and a second lateral axis PA2 along the lateral direction Y. The first lateral axis PA1 and the second lateral axis PA2 are parallel to each other.

The body portion 111 includes a head body portion 111a, a central body portion 111b, and a tail body portion 111c. The head end body portion 111 a is pivotally connected to one end of the central body portion 111 b with the first lateral axis PA1 as a pivot axis. The tail end body portion 111c is pivotally connected to the other end of the central body portion 111b with the second lateral axis PA2 as a pivot axis.

The branch portions 112 extend from the head end body portion 111a, the central body portion 111b, and the tail end body portion 111c in the lateral direction Y, respectively. For convenience of explanation, the branch portions 112 extending from the head end body portion 111a are referred to as branches. The branch portions 112a are called branch portions 112b extending from the central body portion 111b, and the branch portions 112 extending from the tail body portion 111c are referred to as branch portions 112c.

The lifting portion 21 includes a head lifting portion 21a, a central lifting portion 21b, and a tail lifting portion 21c. The head-end lifting portion 21a, the central lifting portion 21b, and the tail-end lifting portion 21c are sequentially arranged along the longitudinal direction X.

The lifting supports 211 include a plurality of head lifting supports 211a, a plurality of central lifting supports 211b, and a plurality of tail lifting supports 211c. The head-end lifting supports 211a, the central lifting supports 211b, and the tail-end lifting supports 211c are sequentially arranged along the longitudinal direction X.

The series connection includes the head-end series connection 212a, the center series connection 212b, and the tail-end series connection 212c. The head-end series connection 212a, the central series connection 212b, and the tail-end series connection 212c are sequentially arranged along the longitudinal direction X.

The head-end lifting portion 21a includes the head-end lifting supports 211a and the head-end serial connection member 212a. The central lifting portion 21b includes the central lifting supports 211b and the central series connection piece 212b, and the tail lifting section 21c includes the tail lifting assemblies 211c and the tail series connection member 212c.

The head end series member 212a is connected in series to the head end lifting members 211a, the center series member 212b is connected to the center lifting members 211b in series, and the tail end series member 212c is connected to the tail end lifting members in series. 211c.

The head-end lifting support 211a closest to the central lifting supports 211b is pivotally connected to the lifting moving part 31. The central lifting portion 21 b is connected to the lifting and moving portion 31. The tail-end lifting support 211c closest to the central lifting supports 211b is pivotally connected to the lifting moving part 31. Therefore, when the elevating and moving part 31 moves up and down, the head end elevating part 21a, the central elevating part 21b, and the tail elevating part 21c move up and down together. In this embodiment, the central series connection piece 212b is penetrated through the central lifting supports 211b and two of the lifting moving parts 31 to connect the central lifting part 21b to the two lifting moving parts 31.

As shown in FIG. 4a and FIG. 4b, the head-end pivoting actuating member 4 includes a head-end reciprocating power unit 41, a head-end linkage member 42, and a head-end pushing member 43. The head-end pushing member 43 is pivotally connected to a head-end lifting support 211a. The head-end linkage member 42 is connected to the head-end pushing member 43 and is in contact with the head-end reciprocating power unit 41. The head-end reciprocating power unit 41 is disposed on the side-moving bed frame 20 and is controlled to perform A reciprocating motion or stop motion. The control of the head-end reciprocating power unit 41 can be performed by wired or wireless means.

As shown in FIGS. 4c and 4d, the tail-end pivoting actuating member 5 includes a tail-end reciprocating power unit 51, a tail-end linkage member 52, and a tail-end pushing member 53. The tail end pushing member 53 is pivotally connected to a tail end lifting support 211c. The rear end linking member 52 is connected to the rear end pushing member 53 and is in contact with the rear end reciprocating power unit 51. The rear end reciprocating power unit 51 is provided on the side-moving bed frame 20 and is controlled to perform A reciprocating motion or stop motion. The control of the tail end reciprocating power unit 51 can be performed by a wired or wireless manner.

In this embodiment, the head-end linkage member 42 includes two first links 421 of the same size and two second links 422 of the same size. The head-end push The abutting member 43 is two connecting rods of the same size. One end of the first links 421 is pivotally connected to the side bed base 20, and the other ends of the first links 421 are each pivotally connected to the second link 422. Each of the second links 422 is pivotally connected to the head-end pushing member 43. A power unit ejection plate 423 is connected between the first links 421. When the head-end reciprocating power unit 41 is controlled to push against the power unit ejection plate 423, the first links 421 pivot, so that the second links 422 each drive one of the head ends to push against Piece 43. The head-end reciprocating power unit 41 is provided with a roller 411 in rolling contact with the power unit ejection plate 423 to push against and support the power unit ejection plate 423 to drive the head-end linkage member 42.

In this embodiment, the tail-end linkage member 52 includes two first links 521 of the same size and two second links 522 of the same size. The rear end pushing member 53 is two connecting rods of the same size. One end of the first links 521 is pivotally connected to the side bed base 20, and the other ends of the first links 521 are respectively pivoted to the second link 522. The second connecting rods 522 are each pivotally connected to the tail pushing member 53. A power unit ejection plate 523 is connected between the first links 521. When the rear end reciprocating power unit 51 is controlled to be pushed against the power unit ejection plate 523, the first links 521 pivot, so that the second links 522 each drive one of the tail ends to push against Piece 53. The rear end reciprocating power unit 51 is provided with a roller 511 in rolling contact with the power unit ejection plate 523 to push against and support the power unit ejection plate 523 to drive the tail end linkage member 52.

As shown in Figs. 1a, 4a, and 4b, when the head-end reciprocating power unit 41 is controlled, the head-end linkage member 42 is pushed to drive the head end. When the pushing member 43 pivots to the head-end pushing member 43 while contacting at least one of the head-end lifting support 211a and at least one branch portion 112a extending from the head-end body portion 111a, the head-end lifting portion 21a, The head end body portion 111a and the branch portions 112a are rotated about the first lateral axis PA1. In this way, the bedridden changes from lying down to sitting down, and the branch portions 112a and the head end lifting portion 21a after rotation can support the back of the sitting person. The head-end reciprocating power unit 41 may be hydraulically actuated and controlled in a wired or wireless manner.

As shown in Figures 1a, 4c, and 4d, when the tail end reciprocating power unit 51 is controlled, the tail end linking member 52 is pushed to drive the tail end pushing member 53 to pivot to the tail When the end pushing member 53 simultaneously contacts at least one of the tail lifting portion 211c and at least one branch portion 112c extending from the tail body portion 111c, the tail lifting portion 21c, the tail body portion 111c, and the branches The support portion 112c rotates the second lateral axis PA2. In this way, the legs of the bedridden are lifted by the tail lifting portion 21c and the branch portions 112c, so as to meet the needs of the bedridden to lift the legs. The tail end reciprocating power unit 51 can be hydraulically actuated and controlled in a wired or wireless manner.

As shown in FIG. 2b, FIG. 4a to FIG. 4d, and FIG. 5a, in detail, the head end lifting portion 21a has a head end rotation preventing portion 213a. Since the head-end lifting portion 21a is pivotably connected to the lifting-moving portion 31 through a head-end lifting support 211a, the head-end pushing member 43 does not contact the head-end lifting support without contacting In the case of the element 211a, the head-end lifting portion 21a tends to pivot downward due to gravity. Therefore, the purpose of the head end rotation preventing portion 213a abutting the lifting and moving portion 31 is At: when the head-end lifting supports 211a are not pushed by the head-end pushing member 43 to maintain the horizontal alignment state together, the head-end lifting supports 211a are prevented from pivoting downward. Similarly, the tail-end lifting portion 21c has a tail-end rotation preventing portion 213c. Since the tail-end lifting portion 21c is pivotably connected to the lifting-moving portion 31 through a tail-end lifting support 211c, the tail-end pushing member 53 does not contact and push the tail-end lifting supports. In the case of the component 211c, the tail-end lifting portions 21c tend to pivot downward due to gravity. Therefore, the purpose of the tail-end rotation preventing portions 213c abutting the lifting and moving portion 31 is to prevent the tail-end lifting supports 211c from being held horizontally together without being pushed by the tail-end pushing members 53 to prevent the The tail-end lifting supports 211c pivot downward. In this embodiment, one surface of the head-end lifting support 211a pivotally connected to the lifting-moving portion 31 is used as the head-end stopping portion 213a. Similarly, one surface of the tail-end lifting support 211c which is closest to the lift-moving portion 31 and pivotally connected to the lift-moving portion 31 is used as the tail-end rotation preventing portion 213c. In this way, the lifting supports 211 (the head lifting support 211a, the central lifting support 211b, and the tail lifting support 211c) can be kept horizontally aligned during the lifting process without interfering with the reference bed 1 The branch portions 112 interfere with each other to facilitate and meet the requirements of being able to perform the lifting operation when the side-moving lifting bed body 2 is combined with the reference bed body 1.

Comparing Fig. 1a, Fig. 4a to Fig. 4d, Fig. 2a, and Fig. 5b, in the combined state of the reference bed 1 and the side-moving lifting bed 2, and the branch portion 112a is not subjected to the head end When the contact member 43 pushes, the head end body portion 111a is supported by the bed support portion 101 (moved from the reference bed 1 and the side The situation is the same when the lowering body 2 is completely separated), so the branch portions 112a will remain horizontally aligned without rotating downward. Similarly, when the branch portion 112c is not pushed by the tail-end pushing member 53, the tail-end body portion 111c is supported by the bed support portion 101 (with the reference bed 1 and the side-shift lift The situation is the same when the bed body 2 is completely separated), so the branch portions 112c will remain horizontally aligned without rotating downward. That is to say, the head end body portion 111a, the branch portions 112a, the tail end body portion 111c, and the branch portions 112c are only in a combined state of the reference bed body 1 and the side lift bed body 2, Only when the head end pushing member 43 and the tail end pushing member 53 are in contact with each other, the head end lifting portion 21a and the tail end lifting portion 21c rotate upward together.

As shown in Figs. 3a to 3d, in the state where the side-moving lifting bed body 2 and the reference bed body 1 are combined, and the branch portions 112a and the head-end lifting supports 211a are not subjected to the head-end When the pushing members 43 are arranged substantially horizontally, and when the branch portions 112c and the tail lifting members 211c are arranged substantially horizontally without being pushed by the tail pushing members 53, the lifting branches The pieces 211 (the head-end lifting support 211a, the central lifting support 211b, and the tail-end lifting support 211c) vertically pass through the corresponding lifting support moving space SP as the lifting and moving part 31 moves up and down, and The tops of the lifting supports 211 are made higher than, lower than, or equal to the top of the branch portions 112. In this process, the head-end pivoting actuating member 4 and the tail-end pivoting actuating member 5 are respectively pivoted to the head-end lifting by the head-end pushing member 43 and the tail-end pushing member 53. The support 211a and the tail lifter 211c, therefore, the head 211a and the lifter 211a The tail end lifting supports 211c are linked without interfering with the lifting activities of the lifting supports 211.

In the case where the tops of the lifting supports 211 and the tops of the branch portions 112 are equal in height, as shown in FIGS. 4a to 4d, the head-end pivoting actuating member 4 and the tail-end pivoting cause The moving member 5 can push the head end lifting portion 21a, the head end body portion 111a, the branch portions 112a, and the tail end lifting portion 21c by the head end pushing member 43 and the tail end pushing member 53, respectively. The tail end body portion 111c and the branch portions 112c are rotated.

Therefore, in addition to the functions of lifting and transporting the bedridden, the bedframe structure 100 can further combine the function of changing the bedridden from lying to sitting, or raising the legs of the bedridden to meet the care or Daily needs.

Further, as shown in FIG. 6a to FIG. 6d, the bed frame structure 100 defines a longitudinal axis RA along the longitudinal direction X. The side-moving lifting bed body 2 further includes a reversing actuating unit 6. The central stringer 212b is rotatably disposed on the lifting-moving portion 31 with the longitudinal axis RA as a rotation axis. The central lifting supports 31 The piece 211b has a turning actuating unit contact portion 2111, and the turning actuating unit 6 is controlled to perform a reciprocating motion. In this embodiment, the contact portion 2111 of the turning actuation unit is a cross bar connected to one side of the central lifting supports 211b, but it is not limited to this form.

In the state where the side-moving lifting bed body 2 and the reference bed body 1 are combined, and the turning actuating unit 6 is controlled to perform a reciprocating motion and contact the turning actuating unit contact portion 2111, the central series connection piece 212b driven into Line rotation. The central lifting supports 211b roll over the lifting support moving space SP formed by the branch portions 112b and the central body portion 111b as the central concatenation member 212b rotates. The flip actuation unit 6 can be actuated hydraulically and controlled in a wired or wireless manner.

Therefore, when the back of a bedridden person is located on the central lifting support 211b of the bed frame structure 100, the central lifting supports 211b can be turned as shown in Figs. 6a to 6d, which can help lying down. The bedridden person in the lying state turns over to facilitate the caregiver to pat back the bedridden person and ease the pressure on the bedridden hand.

In this embodiment, as shown in FIG. 1a, FIG. 4a, and FIG. 8, the lifting supports 211 (the head lifting support 211a, the central lifting support 211b, and the tail lifting support 211c) Each has a lower recess 2112. Each of the recessed portions 2112 has a through hole 21121. The head-end serial connection piece 212a is connected through the through holes 21121 and connected in series with all the head-end lifting support pieces 211a. The central connecting piece 212b is connected and connected in series through the through holes 21121 to the central lifting support 211b. The tail end serial connection piece 212c is connected through the through holes 21121 and connected in series with all the tail end lifting support pieces 211c. In this embodiment, the shapes of the head lifting support 211a, the center lifting support 211b, and the tail lifting support 211c are exactly the same, so only the center lifting support 211b and the center string are drawn in FIG. 8接 件 212b.

As shown in FIG. 9, in an embodiment of the bed frame structure 100 of the present invention, guard rails 7 may be respectively installed on the sides of the reference bed 1 and the side-shifting lifting bed 2, for example, installed on the side respectively. Lifting and moving part 31 and the main body part 111 to increase The patient's safety and caregiver can push the bed frame structure 100. The guardrail 7 can be raised or lowered to facilitate a bedrider to leave or return to the bed frame structure 100.

Based on the above-mentioned embodiments, the structure of the bed frame structure proposed by the present invention can be used to move, carry and lift the bedridden, make the bedridden from a lying state to a sitting state, raise the lower body and legs of the bedridden person, and make the bedridden person Functions such as turning over while lying down. The caregiver does not need to manually adjust the position of the bedridden person and move the bedridden person.

Claims (11)

A bed frame structure defines a longitudinal direction and a lateral direction which are perpendicular to each other. The bed frame structure includes: a reference bed body, including: a reference bed frame, having a bed support portion The reference bed frame is provided with a side moving bed frame seat matching portion; and a fixed bed portion including a body portion and a plurality of branch portions, the body portion is provided on the bed portion support portion, and the branch portions are provided from the body The extension part extends to the lateral direction and is arranged at intervals in the longitudinal direction to form a plurality of spaced-apart lifter movement spaces arranged with the body part, and the branch parts do not intersect each other; and the side-moving lift bed body includes : One side moving bed frame base is provided with a reference bed frame matching part, and the reference bed frame matching part and the side moving bed frame base matching part are correspondingly arranged in a manner capable of generating relative movement in the lateral direction; a jack The device is arranged on the side-moving bed frame base, and the jack device has a lifting and moving part which is controlled to move up and down; and a lifting part including a plurality of lifting supports and a series of connecting pieces, The The lifting supports are arranged at intervals along the longitudinal direction. The series is connected and connected to all the lifting supports. The lifting part is connected to the lifting moving part and follows the lifting movement of the lifting moving part. Lifting and moving; wherein, in the state where the side-moving bed base and the reference bed-frame are combined, the position of each of the lifting supports corresponds to a position of the moving space of the lifting support; wherein, the bed is moved on the side In the state of the combination of the base and the reference bed frame, the lifting supports pass through the lifting support moving space with the lifting movement of the lifting moving part, and the tops of the lifting supports are adjusted to be higher or lower than The tops of the branches may be the same height as the tops of the branches. The bed frame structure according to item 1 of the patent application scope, wherein the bed frame structure defines a first lateral axis and a second lateral axis parallel to each other along the lateral direction, and the bed frame structure further includes a head end pivot The rotary actuating member and a tail end pivoting actuating member, wherein: the body portion includes a head end body portion, a central body portion and a tail end body portion, and the head end body portion is based on the first lateral axis as The pivot body is pivotally connected to one end of the central body part, the tail end body part is pivotally connected to the other end of the central body part with the second lateral axis as a pivot axis, and the branch parts are respectively from the central body The head end body portion and the tail end body portion extend in the lateral direction; the lifting portion includes a head end lifting portion, a central lifting portion and a tail lifting portion, the head end lifting portion, the central lifting portion And the tail lifting section are arranged in sequence along the longitudinal direction. The lifting supports include a plurality of head lifting supports, a plurality of central lifting supports, and a plurality of tail lifting supports. Pieces, the central lifting supports, and the tail lifting supports The pieces are arranged in order along the longitudinal direction. The concatenated piece includes a head-end concatenated piece, a central concatenated piece, and a tail-end concatenated piece. The pieces are sequentially arranged along the longitudinal direction. The head-end lifting portion includes the head-end lifting pieces and the head-end series connection piece, and the central lifting portion includes the central lifting pieces and the central connection piece. The tail end lifting portion includes the tail end lifting members and the tail end connecting member, the head end connecting member is connected in series to the head end lifting members, and the central connecting member is connected in series to the central lifting members. The tail end connecting piece is connected in series with the tail lifting pieces, and the head lifting piece closest to the central lifting pieces is pivotally connected to the lifting moving part, and the head lifting piece is provided with a The head end rotation preventing part, when the head end rotation preventing part abuts against the lifting and moving part, the head end lifting support cannot pivot downward, the central lifting part is connected to the lifting moving part, and the central lifting part The tail end lifting support with the shortest distance from the support is pivotally connected to the lifting movement part, and the tail end lifting part is provided with a tail end stop. When the tail-end rotation preventing part abuts on the lifting and moving part, the tail-end lifting support cannot pivot downward; one end of the head-end pivoting actuating member is pivotally connected to one of the head-end lifting support, The other end is arranged on the side-moving bed frame base, and is controlled to perform a reciprocating motion or stop motion; and one end of the tail-end pivoting actuating member is pivotally connected to one of the tail-end lifting supports, and the other end is arranged The bed base is moved to the side and controlled to perform a reciprocating motion or stop motion. The bed frame structure according to item 2 of the scope of patent application, wherein the head-end pivoting actuating member includes a head-end reciprocating power unit, a head-end linking member, and a head-end pushing member, and the head-end pushing member is pivotally connected. On a head-end lifting support, the head-end linking member is connected to the head-end pushing member and is in contact with the head-end reciprocating power unit, and the head-end reciprocating power unit is provided on the side-moving bed frame base, And is controlled to perform a reciprocating motion or stop motion; and the tail-end pivoting actuating member includes a tail-end reciprocating power unit, a tail-end linking member, and a tail-end pushing member, and the tail-end pushing member is pivotally connected At a tail end lifting support, the tail end linkage member is connected to the tail end pushing member and is in contact with the tail end reciprocating power unit, and the tail end reciprocating power unit is arranged on the side-moving bed frame base, And controlled to perform a reciprocating motion or stop motion. The bed frame structure according to item 2 of the scope of patent application, wherein the bed frame structure defines a longitudinal axis along the longitudinal direction, the side-shifting lifting bed body further includes a turning actuating unit, and the central series member is connected with the The longitudinal axis is rotatably provided on the lifting and moving part as a rotation axis. The central lifting supports have a contact part for a flip actuation unit, and the flip actuation unit contacts and is controlled by the contact part of the flip actuation unit. A reciprocating motion is performed. According to the bed frame structure described in any one of claims 1 to 4, the jack device further includes a link member and a unit of motion, and the link member is provided on the side-moving bed frame base, and the The lifting and moving part is provided on the link member, the actuating unit is connected to the link member, and the actuating unit is controlled to reciprocate to cause the lifting and moving part to move up and down. The bed frame structure according to item 5 of the scope of the patent application, wherein the number of the lifting and moving parts is two, two of the lifting and moving parts are arranged along the longitudinal direction, and the number of the link members is two, two The link members are arranged along the longitudinal direction and correspond to the positions of the two moving parts. The two link members are connected with the pushing unit of the moving unit. One link member includes two pivotally connected A pair of cross-shaped connecting rods in the middle, two of which are connected to each other to be pivoted up and down, the side bed support is provided with a slide rail, and a connecting rod of the lower connecting rod pair is pivotally connected to the side. The slide rail of the moving bed frame base, and the other link of the lower link pair is slidably provided on the sliding rail of the side moving bed frame base. The lifting and moving part is provided with a slide rail, and the upper connection A link of the rod pair is pivotally connected to the slide rail provided on the lifting and moving part, and the other link of the upper link pair is slidably provided on the slide rail provided on the lifting and moving part. The two lower pairs of the links are each pivoted with a pivot rod, while the two upper pairs of the links are linked The actuating unit is controlled by a pivot rod to synchronize and pivot, and the actuating unit pushing portion is pushed up. According to the bed frame structure described in any one of claims 1 to 4, wherein the reference bed frame fittings are rollers and / or gears, and the side-moving bed frame seat fittings are rails and / or racks, The gear is connected to an electric motor. The bed frame structure according to any one of claims 1 to 4, wherein the body portion is an elongated body, and the branch portions are elongated bodies parallel to each other in the lateral direction, and the body And the branch portions are perpendicular to each other. According to the bed frame structure described in item 3 of the scope of patent application, wherein the head-end linkage member includes two first links of the same size and two second links of the same size, the head-end pushing members are the same Two links of the size, one end of the first links are pivotally connected to the side bed base, and the other ends of the first links are each pivotally connected to the second link and the second links Each of the head end pushing members is pivotally connected, and a power unit ejection plate is connected between the first links. When the head end reciprocating power unit is controlled to be ejected on the power unit ejection plate, the first A link is pivoted, so that each of the second links drives a head-end pushing member. According to the bed frame structure described in item 3 of the scope of patent application, wherein the tail end linkage member includes two first links of the same size and two second links of the same size, the tail end pushing members are the same Two links of the size, one end of the first links are pivotally connected to the side bed base, and the other ends of the first links are each pivotally connected to the second link and the second links Each of the tail end pushing pieces is pivotally connected, and a power unit ejection plate is connected between the first links. When the tail end reciprocating power unit is controlled to be ejected on the power unit ejection plate, the first A link is pivoted, so that each of the second links drives a tail end to push against the piece. According to the bed frame structure described in any one of claims 2 to 4, the head end lifting support, the center lifting support, and the tail lifting support have lower recesses, and The lower recesses each have a through-hole, the head-end series connecting pieces are connected through the through-holes and all the head-end lifting support pieces are connected, and the central series connecting piece is connected and series-connected through the through-holes. The support, the tail end serial connection part, the through holes are connected and all the tail end lifting support parts are connected in series.