TWI657813B - Plate lifting device and lifting bed - Google Patents

Abstract

A plate lifting device for a multi-plate device, comprising a motor, a telescopic rod, a limiting plate and a lifting mechanism. The motor is disposed on the base of the multi-plate device, and one side of the telescopic rod is pivoted on the base and connected to the motor to be telescoped by the motor, and the other side has a moving member. The limiting plate connects one of the plates on the multi-plate device and has a slot for the moving member to pass through. The lifting mechanism is disposed on the base. When the motor pushes the telescopic rod to extend from the initial state, the lifting mechanism raises the moving member, so that the plate connected to the limiting plate and the limiting plate is raised and connected. Thereby, the plate body of the multi-plate device can be lifted and lowered more smoothly.

Description

Plate lifting device and lifting bed

The invention relates to a plate lifting device and a lifting bed; in particular, to a plate lifting device capable of smoothly lifting and lowering a plate body of a multi-plate device, and a lifting bed using the plate lifting device.

The electric lift bed is commonly used in the medical or rehabilitation field, and the bed surface is composed of a plurality of plate bodies, and a lifting device can be arranged under the plate body to lift the plate body respectively to support the back or legs of the user for the user to change the posture. The plate lifting device has a telescopic rod and a linking member, and the two are oppositely arranged. For example, the telescopic rod below the plate body of the user's leg is pivotally connected to the base of the lifting bed near the tail of the bed, and the linking member is pivotally connected to the base of the lifting bed near the user's hip position when lying on the lifting bed. And the telescopic rod and the movable side of the linkage are connected to each other. The telescopic rod can be connected to the motor on one side of the pivot base, and the motor can control the extension rod to extend or retract.

When the user wants to raise the height of the leg of the lifting bed, the controller can control the motor to push the telescopic rod to extend, and the extended telescopic rod pushes the linking member, so that the linking member and the telescopic rod face away from the base. Rotating and the joint of the two moves upwards, thereby pushing the plate above the telescopic rod and the linkage to move upward. Thereby, the plate body of the tail portion of the bed can be raised to support the user's legs.

If the bed end of the lifting bed has already been raised, when the user wants to further raise the plate body at the end of the bed, since the telescopic rod and the linking member have been deflected upward, the vertical force of the force of the motor to push the telescopic rod is large. , resulting in a small increase in the end of the bed. However, if the lifting bed is originally in a completely horizontal state, when the user wants to raise the plate body at the end of the bed, the force of the motor pushing the telescopic rod is almost only the horizontal component force, and the lifting is difficult at this time and due to the telescopic rod and the linking member Pushing each other may cause damage to the lifting mechanism.

In addition, multi-plate devices that are similar in function to the lift bed and that use similar lift mechanisms may also face this situation. Therefore, it is necessary to develop a new type of plate lifting device to solve the above problems.

In view of the above, an object of the present invention is to provide a plate lifting device which can be used in a multi-plate device and smoothly raises a plate body of a multi-plate device.

In order to achieve the above object, the board lifting device provided by the present invention comprises a motor, a telescopic rod, a limiting plate and a lifting mechanism, wherein the motor can be disposed on the base of the multi-plate device, and the telescopic rod is pivoted on the base. The limiting plate is connected to one of the plurality of plates on the multi-plate device, and the lifting mechanism is disposed on the base. The telescopic rod is connected to the motor on one side and has a moving member on the other side that can be telescoped by the motor. The limiting plate has a slot for the moving member to pass through, so that the limiting plate and the plate body connected to the limiting plate are interlocked with the moving member. The position of the lifting mechanism corresponds to the moving member. When the motor pushes the telescopic rod so that the telescopic rod protrudes from the initial state, the moving member of the telescopic rod contacts and is lifted by the lifting mechanism, so that the limiting plate and the plate connected to the limiting plate are connected. The body is raised by the moving member.

Another object of the present invention is to provide a lift bed that can be smoothly adjusted from a horizontal state.

In order to achieve the above object, the lifting bed provided by the present invention comprises a base, a plurality of plates disposed on the base, and a plate lifting device disposed between the base and the plate. The plate lifting device may include a motor, a telescopic rod, a limiting plate and a lifting mechanism, wherein the motor may be disposed on the base, the telescopic rod is pivoted on the base, and the limiting plate is connected to one of the plurality of plates, and is lifted The mechanism is placed on the base. The telescopic rod is connected to the motor on one side and has a moving member on the other side that can be telescoped by the motor. The limiting plate has a slot for the moving member to pass through, so that the limiting plate and the plate body connected to the limiting plate are interlocked with the moving member. The position of the lifting mechanism corresponds to the moving member. When the motor pushes the telescopic rod so that the telescopic rod protrudes from the initial state, the moving member of the telescopic rod contacts and is lifted by the lifting mechanism, so that the limiting plate and the plate connected to the limiting plate are connected. The body is raised by the moving member.

Thereby, the invention can achieve the effect of smoothly raising the plate body when the bed is in the horizontal state.

In order that the present invention may be more clearly described, the preferred embodiments are described in detail with reference to the drawings. 1 to FIG. 3, FIG. 1 is a schematic view of a lift bed 1 according to an embodiment of the present invention, FIG. 2 is a partial schematic view of the lift bed 1 of FIG. 1, and FIG. 3 is a portion of the lift bed 1 of FIG. Schematic diagram of the section. As shown in FIG. 1 and FIG. 2, the lifting bed 1 includes a base 10, a plurality of plate bodies 12, and a plate lifting device 14, wherein the plate body 12 is disposed on the base 10, and the plate lifting device 14 is disposed on Between the base 10 and the plate body 12. In Fig. 2, a part of the plate body 12 is omitted for the sake of simplicity of the drawing. Please note that the lifting bed 1 in the present embodiment is not limited to the electric lifting bed for medical or rehabilitation, and any multi-plate device having a similar structure or function is suitable for the lifting bed 1.

As shown in FIG. 3, the plate lifting device 14 has a motor 140, a telescopic rod 141, a limiting plate 142, and a lifting mechanism 143. The motor 140 and the lifting mechanism 143 are disposed on the base 10, and the telescopic rod 141 is pivotally connected. The base 140 is connected to the motor 140. The motor 140 can be controlled by the controller in a wired or wireless manner in practice and pushes the telescoping rod 141 to extend or retract. The other side of the telescopic rod 141 has a moving member 144. The limiting plate 142 is connected to one of the plurality of plate bodies 12. In detail, the base 10 has a movable frame group 100, and the plate bodies 12 are respectively disposed at different portions of the movable frame group 100, and the limiting plate 142 is It is connected to a portion of the movable frame group 100 where one of the plates 12 is located. A slot 1420 is formed in the limiting plate 142, and the moving member 144 can pass through the slot 1420. In addition, the plate lifting device 14 may further have a linking member 145, one side of which is pivotally connected to the base 10 and the other side of which is coupled to the moving member 144. In practice, the linkage 145 can also form a slot for the moving member 144 to pass. The side of the linking member 145 that is coupled to the moving member 144 can be coupled to or abuts against a portion of the movable frame group 100 where the limiting plate 142 is located. Thereby, when the motor 140 pushes the telescopic rod 141 to extend or retract, the telescopic rod 141 and the moving member 144 can be combined with the limiting plate 142, the linking member 145, the movable frame group 100, and the plate on the movable frame group 100. Body 12 is linked together.

The lifting mechanism 143 is disposed above the base 10 and is positioned corresponding to the moving member 144. The telescopic rod 141 has an initial state, that is, a state in which the telescopic rod 141 is not lifted, and in this state, the plate body 12 of the lift bed 1 is in a horizontal state. When the plate body 12 of the lift bed 1 is in a horizontal state and the motor 140 is controlled to push the extension rod 141 to extend, the moving member 144 contacts the lift mechanism 143 and is lifted by it. In this embodiment, the moving member 144 can be a roller and the lifting mechanism 143 can be a slope having a slope, and the lifting effect can be achieved by rolling the roller on the inclined surface. Please refer to FIG. 3 to FIG. 5 together. FIG. 4 and FIG. 5 are partial cross-sectional views showing the lifting mechanism 143 of FIG. As shown in FIGS. 3 to 5, when the motor 140 starts to push the telescopic rod 141, the roller contacts the slope of the slope. Next, the motor 140 continues to push the telescoping rod 141 to advance the moving member 144, while the advancing moving member 144 (roller) rolls on the slope of the lifting mechanism 143 and moves upward over the ramp. The moving member 144 moves upward in the slope, and the limiting plate 142 and the linking member 145 that are interlocked with the moving member 144 are lifted upward, so that the movable frame group 100 and the plate body 12 can be abutted to move the two upwards. Therefore, even if the plate body 12 of the lift bed 1 is in a horizontal state and the motor 140 starts to push the telescopic rod 141, the force applied by the motor 140 to the telescopic rod 141 is partially converted into a vertical component by the lifting mechanism 143, so that the plate body 12 can be Smoothly rise.

In addition, in the embodiment, the movable frame group 100 can also have an auxiliary rod 102 pivotally connected to the movable frame group 100 and the base 10 respectively, wherein the auxiliary rod 102 is disposed adjacent to the limiting plate. The other plate body 12 of the connected board body 12 (such as the leftmost board body 12 in FIG. 4), in other words, the auxiliary lever 102 is disposed on one side of the corresponding telescopic rod 141. As shown in FIG. 3 to FIG. 5, when the motor 140 pushes the telescopic rod 141 to raise the limiting plate 142 and the linking member 145 together, the movable frame group 100 and the plate body 12 on the right side are simultaneously lifted up by the top. The right side portion and the left side portion of the movable frame group 100 are pivotally connected to each other, so that the movable frame group 100 on the right side pulls the movable frame group 100 on the left side when being lifted, and the auxiliary lever 102 is also driven to stand up. The auxiliary lever 102 can maintain the stability of the raised movable frame group 100 and can support the movable frame group 100 and the plate body 12.

As described above, when the plate body 12 of the lift bed 1 is in a horizontal state, the lifting of the plate body 12 can be lifted more smoothly by the guidance of the lifting mechanism 143. On the other hand, when the plate body 12 is lifted to a certain extent, the force of the motor 140 pushing the telescopic rod 141 has a considerable vertical component, so that the lifting mechanism 143 does not need to be guided. Please refer to FIG. 5 and FIG. 6. FIG. 6 is a partial cross-sectional view showing the plate lifting device 14 of FIG. 3 lifting the plate body 12 to a certain height. As shown in FIGS. 5 and 6, when the motor 140 pushes the telescopic rod 141 to the moving member 144 to climb to the highest point along the slope of the lifting mechanism 143, if the motor 140 continues to push the telescopic rod 141, the motor 140 pushes the telescopic rod 141. The force has a considerable degree of vertical component, so the plate body 12 is converted from a guided lift to a rocker lift.

Referring to FIG. 2 again, only one roller and one slope are illustrated in FIG. 2, but in practice, the moving member 144 may include two rollers respectively disposed on two opposite sides of one end of the telescopic rod 141, and similarly, The lifting mechanism 143 can also include two slopes corresponding to two rollers. Therefore, when the motor 140 pushes the telescopic rod 141, the two rollers can roll simultaneously on the inclined faces of the two slopes, so that the lifting action is more stable. It should be noted, however, that the present invention is not limited thereto, and even if the moving member includes only one roller and the lifting mechanism includes only one slope, the effect of smoothly lifting the plate can be achieved.

On the other hand, in the embodiment, the lifting mechanism 143 is a slope having a slope. However, the present invention is not limited thereto, and any structure capable of guiding and lifting the moving member during the lifting process can be used. A lifting mechanism as the present invention is employed.

Referring to FIG. 7 and FIG. 8, FIG. 7 is a partial cross-sectional view of a lift bed 2 according to another embodiment of the present invention, and FIG. 8 is a partial cross-sectional view of the lift bed 3 according to still another embodiment of the present invention. As shown in FIG. 7, the difference between the specific embodiment and the previous embodiment is that the lifting mechanism 243 of the specific embodiment has a curved slope, and the moving member 244 can roll on the arc surface of the lifting mechanism 243. Therefore, the effect of guiding the lift can also be achieved. Please note that the other components of the lift bed 2 of the present embodiment are substantially the same as the corresponding components of the previous embodiment, and thus will not be described again.

In addition, the lifting mechanism is not limited to a slope, and may be other members that can produce a guiding lift effect. As shown in FIG. 8, this embodiment differs from the above-described embodiment in that the lifting mechanism 343 of the present embodiment includes a fixed wheel. The axis of the fixed wheel of the lifting mechanism 343 is fixed on the substrate 30 and can be rotated by the axis. When the motor 340 pushes the telescopic rod 341 to extend the telescopic rod 341 from the initial state, the moving member 344 contacts and pushes the tread of the fixed wheel, and then the fixed wheel is rotated to move the moving member 344 upward along the circumference of the fixed wheel Therefore, the lifting process will be smoother. In this embodiment, the moving member 344 can include a roller, and the wheel surface of the roller contacts the fixed wheel during the lifting process to produce relative rotation. In addition, the moving member 344 may also include a fixing member that is in contact with the fixed wheel during the lifting process, and the fixing member is lifted by the rotation of the fixed wheel.

In the foregoing specific embodiments, the moving member is a roller and can be rolled on the inclined surface, the curved surface or the wheel surface of the lifting mechanism, but it is not limited to the rolling form in practice. Please refer to FIG. 9 and FIG. 10. FIG. 9 and FIG. 10 are respectively partial cross-sectional views of the lift beds 4 and 5 according to various embodiments of the present invention. As shown in FIGS. 9 and 10, the moving members 444, 544 are slides, and when the motors 440, 540 push the telescopic rods 441, 541 to extend the telescopic rods 441, 541 from the initial state, the moving members 444, 544 are respectively brought into contact with the lift. The inclined faces of the mechanisms 443, 543 slide along the inclined faces to achieve the effect of lifting the plate 42. It should be noted that the other members of the lifting beds 4, 5 of the specific embodiments of FIGS. 9 and 10 are substantially the same as the corresponding members of the foregoing specific embodiments, and thus will not be further described herein.

The plate lifting device of each of the foregoing embodiments is used in a lifting bed, but the invention is not limited thereto. In practice, any multi-plate device having a plurality of plates can apply the plate lifting device of the present invention to achieve the aforementioned effect of smoothly lifting the plate from a horizontal state.

It can be seen from the various embodiments described above that the plate lifting device of the present invention can smoothly level the plate on the multi-plate device such as the lifting bed by the moving member on the telescopic rod and the lifting mechanism that cooperates with the moving member. The condition is lifted smoothly and the components are prevented from being pushed and damaged by each other during the lifting process.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present invention and the scope of the patent application are intended to be included in the scope of the present invention.

[this invention]

1, 2, 3, 4, 5 ‧ ‧ lift bed

10, 20, 30, 40, 50‧‧‧ pedestals

12, 22, 32, 42, 52‧‧‧ plates

14, 24, 34, 44, 54‧‧‧ board lifting device

100, 200, 300, 400, 500‧‧‧ movable frame group

102‧‧‧Auxiliary pole

140, 240, 340, 440, 540‧‧ motor

141, 241, 341, 441, 541‧‧ ‧ telescopic rod

142, 242, 342, 442, 542 ‧ ‧ limit plates

143, 243, 343, 443, 543 ‧ ‧ lifted institutions

144, 244, 344, 444, 544‧‧‧ moving components

145, 245, 345, 445, 545‧‧‧ linkages

1420, 2420, 3420, 4420, 5420‧‧‧ slots

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a lift bed in accordance with one embodiment of the present invention. Figure 2 is a partial schematic view of the lift bed of Figure 1. Figure 3 is a partial cross-sectional view of the lift bed of Figure 1. Figure 4 is a partial cross-sectional view showing the lifting mechanism of the lifting mechanism of Figure 3. Figure 5 is a partial cross-sectional view showing the lifting mechanism of the lifting mechanism of Figure 3. Fig. 6 is a partial cross-sectional view showing the plate lifting device of Fig. 3 lifting the plate body to a certain height. Figure 7 is a partial cross-sectional view of a lift bed in accordance with another embodiment of the present invention. Figure 8 is a partial cross-sectional view showing a lift bed in accordance with still another embodiment of the present invention. Figure 9 is a partial cross-sectional view showing a lift bed in accordance with still another embodiment of the present invention. Figure 10 is a partial cross-sectional view showing a lift bed in accordance with still another embodiment of the present invention.

Claims (12)

A plate lifting device for a multi-plate device, the multi-plate device comprising a base and a plurality of plates disposed on the base, the plate lifting device comprising: a motor disposed on the base a telescopic rod pivotally disposed on the base, the telescopic rod is connected to the motor to be telescoped by the motor, and has a moving member on the other side; a limiting plate connecting the multi-plate body One of the plates of the device, the limiting plate has a slot for the moving member to pass through; and a lifting mechanism disposed on the base, wherein the motor pushes the telescopic rod to the telescopic rod When the protrusion is extended from an initial state, the lifting mechanism contacts and lifts the moving member, so that the limiting plate and the plate body connected to the limiting plate are raised by the moving member, and the lifting mechanism does not follow The plate is raised. The plate lifting device of claim 1, wherein the lifting mechanism comprises a slope having a slope facing the telescopic rod, and the motor pushes the telescopic rod to extend the telescopic rod from the initial state. The moving member moves upward along the inclined surface and is lifted by the inclined surface. The plate lifting device of claim 1, wherein the lifting mechanism comprises a fixing wheel rotatably disposed on the base, and when the motor pushes the telescopic rod to extend the telescopic rod from the initial state The moving member pushes the fixed wheel to rotate, and the fixed wheel rotates to lift the moving member. The plate lifting device of claim 1, wherein the moving member comprises a roller that rolls upward on the lifting mechanism when the motor pushes the telescopic rod to extend the telescopic rod from the initial state. The plate lifting device of claim 1, wherein the moving member comprises a sliding member, and when the motor pushes the telescopic rod to extend the telescopic rod from the initial state, the sliding member is upwardly on the lifting mechanism slide. The plate lifting device of claim 1, further comprising a linking member, the linking member being pivotally connected to the base and the other side connecting the moving member. A lifting bed comprising: a base; a plurality of plates disposed on the base; and a plate lifting device disposed between the base and the plates, the plate lifting device further comprising: a motor is disposed on the base; a telescopic rod is pivotally mounted on the base, the side of the telescopic rod is coupled to the motor to be telescoped by the motor, and has a moving member on the other side; a plate, one of the plates connected to the lifting bed, the limiting plate having a slot for the moving member to pass through; and a lifting mechanism disposed on the base, wherein the motor pushes the telescopic rod When the telescopic rod is extended from an initial state, the lifting mechanism contacts and lifts the moving member, so that the limiting plate and the plate body connected to the limiting plate are raised by the moving member, and the lifting is performed. The institution does not rise with the plate. The lifting bed of claim 7, wherein the lifting mechanism comprises a slope having a slope facing the telescopic rod, and when the motor pushes the telescopic rod to extend the telescopic rod from the initial state, The moving member moves up along the inclined surface and is lifted by the inclined surface. The lifting bed of claim 7, wherein the lifting mechanism comprises a fixed wheel rotatably disposed on the base, when the motor pushes the telescopic rod to extend the telescopic rod from the initial state, The moving member urges the fixed wheel to rotate, and the fixed wheel rotates to raise the moving member. The lifting bed of claim 7, wherein the moving member comprises a roller that rolls upward on the lifting mechanism when the motor pushes the telescopic rod to extend the telescopic rod from the initial state. The lifting bed of claim 7, wherein the moving member comprises a sliding member that slides upward on the lifting mechanism when the motor pushes the telescopic rod to extend the telescopic rod from the initial state. The lifting bed of claim 7, wherein the plate lifting device further comprises a linking member, the linking member being pivotally connected to the base and the other side connecting the moving member.