WO2008086657A1

WO2008086657A1 - Hospital bed capable of automatically changing bedsheets without moviing a patient thereon

Info

Publication number: WO2008086657A1
Application number: PCT/CN2007/000151
Authority: WO
Inventors: Xiaozhou Cheng
Original assignee: Xiaozhou Cheng
Priority date: 2007-01-16
Filing date: 2007-01-16
Publication date: 2008-07-24

Abstract

A hospital bed capable of automatically changing bedsheets without moving a patient thereon comprises a bedstead (1) (including a headboard (101), a bed frame (102) and a footboard), a deformable bed top (2), a spool rack (3) and roller shafts (4) on both sides. Both ends of the deformable bed top (2) are fixed on the headboard and footboard respectively, and the bed top is pressed into between the roller shafts (4) by the spool rack (3) to form a tightened and leveled bed top that is sunken in the spool rack (3). Two bedsheets (5) cover the bed, extending respectively from headboard and footboard into the spool rack (3) toward the center and rolling on a corresponding roller axle (301). The roller axles (301) and roller shafts (4) are parallel to the cross section of the bed, and are movable between the headboard and footboard with the spool rack (3). When the spool rack (3) is moving, one bedsheet is spread, another one is rolled up automatically.

Description

Medical bed that automatically replaces sheets without moving the patient

Technical field

The utility model relates to a medical or nursing bed, in particular to a medical bed which automatically replaces sheets when the patient is not moved. Background technique

Existing beds, including various medical beds, must be vacated when changing sheets. People who lose their ability to move and some patients must rely on the movement of others to leave the bed. Not only family members or health care workers are very hard, but they are also prone to discomfort and suffering. For neck pushes, spinal push injuries, various serious injuries, and various post-surgical patients, artificial movements can easily cause secondary damage, which is not conducive to the recovery of patients. Utility model content

The technical problem to be solved by the present invention is to provide a medical bed that automatically replaces the sheets without moving the patient.

In order to solve the above technical problems, the medical bed of the present invention which does not move the patient to automatically change the sheets includes a bed frame provided with a bed head, a bed end and a bed frame, a deformable bed surface, a reel stand, and a roller shaft on both sides of the reel stand. The two ends of the deformable bed are respectively fixed on the head and the tail of the bed, and are pressed between the rollers by the reel frame to form a flat, flat surface which is depressed downward at the reel stand. The reel stand has two detachable reels, and two sheets are laid flat on the bed surface, extending from the head of the bed and the tail to the middle into the reel stand, and wrapped around the corresponding reels. The reel and the roller axis are parallel to the cross section of the bed, and can be horizontally moved between the bed head and the tail of the bed with the reel stand. When the reel stand moves, one bed sheet is unfolded, and the other bed sheet is automatically rolled up. The core is that the deformable bed surface can partially leave the bed surface on the bed surface, creating a movable partial recessed space in which the reel can complete the loading and unloading of the sheets.

In this way, when changing sheets, there is no need to move the injured person. Simply attach the reel with the new sheets to the corresponding position of the reel stand, move the reel stand, and then unfold new sheets and automatically roll up the old sheets. When the reel stand moves from the end of the bed to the end of the bed, the replacement of the sheets can be done.

As an optimization, the reel stand cover has a "U"-shaped outer casing, and the outer casing is connected to the deformable bed The outer surface of the touch is smoothed, which reduces the resistance of the reel holder when moving.

As an optimization, the two long bezels of the bed frame are provided with longitudinal racks. When the reel stand is moved, the longitudinal rack drives a reel through the gear mechanism to unfold the sheets, and another reel rolls up the sheets. By rotating the reel through the longitudinal rack, the reel can be synchronized and operated reliably. Of course, for a medical bed that can be raised to a backrest at one end, the two long frames and the longitudinal rack of the bed frame are arranged in two foldable sections, and correspondingly provided with a lifting mechanism.

As an optimization, the leading ends of the sheets are respectively tensioned on the head and the tail of the bed, and the tail ends of the sheets are wound on the respective reels in different winding directions, and the reels are linked by a pair of intermeshing gears. In this way, as the reel stand moves, a bed sheet unfolds, pulling its wound reel to rotate, and driving another reel to wind up another bed sheet by means of a gear that is coupled to each other.

As an optimization, a spiral torsion spring can be placed outside the reel, and a spiral torsion spring is further provided with a reel. One end of the helical torsion spring is fixed to the reel, and the other end of the helical torsion spring is fixed to the reel. As the reel stand moves, one of the sheets expands, its corresponding helical torsion spring deforms to accumulate, and the other sheet is rolled up by the energy released by its deformed helical torsion spring. Designed to achieve automatic roll-up of sheets by means of a torsion spring.

As an optimization, the hospital bed can also be equipped with a rocker at the head of the bed or at the end of the bed, with two bevel gears on the rocker. The two long bezels of the bed frame are respectively provided with a longitudinal screw, and the two ends of the reel stand are respectively provided with a silk nut matched with the longitudinal screw, and each of the longitudinal screws is provided with a passive bevel gear. The driving bevel gear and the driven bevel gear form two pairs of meshing bevel gear sets. When the rocker is shaken, the two slaves rotate synchronously. In addition, you can remove the rocker handle and drive the rocker with a motor. In this way, the bed sheet can be replaced by turning the rocker, which is convenient to use.

As an optimization, in addition to the two ends of the reel stand, the two long sides of the deformable bed surface are connected to the bed frame by a longitudinal zipper, and two opposite zipper locks are respectively arranged at two ends of the reel stand. When the reel stand is moved, the front zipper lock separates the two zipper tapes that are engaged together, and the rear zipper locks mesh the two zipper tapes that are separated. In this way, the structure of the medical bed is more compact and more convenient to use, and the deformable bed surface can be more flat and firm.

As an optimization, a plurality of crossbars are arranged on the deformable bed surface, and the two ends of the crossbar are provided with slots, and the two long frames of the bed frame are correspondingly provided with a plurality of inserts with a return spring, and the insert has a Pin, silk on There is a chute. The sliding groove on the pin, the bed frame and the nut constitutes a moving cam mechanism. When the pin slides into the middle of the chute, the insert exits the slot under the action of the chute, and the insert is in the return spring when the pin slides out of the middle of the chute. Insert the slot under the effect. Of course, if there is no slot, the insert can be inserted directly under the end of the crossbar. In this way, the structure of the medical bed is more compact and more convenient to use, and the deformable bed surface can be more flat and firm.

As an optimization, a mattress may be provided between the bed sheet and the deformable bed surface, and the mattress is attached to the deformable bed surface; or the mattress is an air mattress, like the bed sheet, detachable on the reel stand On the reel, an annular groove for ventilation is provided on the middle portion of the roller shaft. In this way, the bed of the medical bed is softer and more comfortable, and the mattress mounted on the detachable reel of the reel stand is easy to replace and convenient to use.

As an optimization, a three-cylinder flushing pipe can be arranged between the two roller shafts, the middle is used for water spray, and the two sides are used for jetting. This design makes it easy to clean and massage the back of the patient.

The utility model of the utility model does not move the patient to automatically replace the bed sheet, and has the advantages of simple structure and convenient use, and is suitable for use by a patient who is paralyzed, vegetatively and seriously injured, seriously ill, and various post-operative patients who are unable to move or are not suitable for activities. By adopting the utility model, the medical bed is automatically changed without moving the patient, and the medical staff and the patient's family can easily change the bed sheets without causing pain to the patient. DRAWINGS

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a specific embodiment of a medical bed in which the patient does not move the patient to automatically change the sheets is described in detail with reference to the accompanying drawings, wherein:

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a first embodiment of a medical bed in which the patient does not move the patient to automatically replace the sheets.

Fig. 2 is a schematic view showing the structure of the second embodiment of the medical bed in which the patient does not move the patient to automatically replace the sheets, wherein the sheets have been removed.

Fig. 3 is a schematic view showing the structure of the third embodiment of the medical bed in which the patient does not move the patient to automatically change the sheets, wherein A is a schematic cross-sectional view of the silk mother.

Fig. 4 is an exploded perspective view showing the reel, the helical torsion spring and the reel in the fourth embodiment of the medical bed in which the patient does not move the patient to automatically replace the sheets.

In the figure: 1 is a bed frame, 101 is a bed head, 102 is a bed frame, 2 is a deformable bed surface, 3 is a reel stand, 301 is a reel, 302 is a U-shaped outer casing, 303 is a gear, 304 is a helical torsion spring, 305 is a reel, 4 is a roller shaft, 5 is a bed sheet, 6 is a rocker, and 600 is a crank handle. 601 is a driving bevel gear, 7 is a longitudinal screw, 701 is a driven bevel gear, 703 is a thread mother, 8 is a longitudinal zipper, 801 is a zipper lock, 802 is a zipper belt, 9 is a crossbar, and 902 is a plug with a return spring. The sheet, 903 is a pin, 904 is a chute, and 905 is a needle hole for fixing the cross bar and preventing it from moving. detailed description

The medical bed of the present invention which does not move the patient to automatically replace the sheets will be further described below with reference to the accompanying drawings.

Embodiment 1 : As shown in FIG. 1 , the medical bed of the present invention does not move the patient to automatically change the bed sheet, including the bed frame 1 with the bed head 101 , the bed tail and the bed frame 102 , the deformable bed surface 2 , the reel stand 3 and the reel Roller shaft 4 on both sides of the frame 3. Both ends of the deformable surface 2 are fixed to the head 101 and the tail of the bed, respectively, and are pressed between the rolls 4 by the reel stand 3 to form a flat, flat surface which is recessed downward at the reel stand 3. The reel stand 3 is provided with two detachable reels 301, and two sheets 5 are laid on the bed surface, respectively extending from the bed head 101 and the tail of the bed into the reel stand 3, and wound on a corresponding reel 301. . The reel 301, the roller shaft 4 is parallel to the cross section of the bed, and is movable with the reel stand 3 between the bed head 101 and the end of the bed. When the reel stand 3 is moved, one sheet 5 is unfolded and the other sheet 5 is automatically rolled up. The core is: The deformable bed surface 2 can partially leave the bed surface on the bed surface to create a movable partial recessed space for the reel 301 to complete the loading and unloading of the sheets 5 in the recessed space.

The medical bed of the utility model does not move the patient to automatically replace the bed sheet, and further comprises a rocker 6 at the bed head 101 or the tail of the bed. The rocker 6 is provided with two driving bevel gears 601, and the two ends of the reel stand 3 are respectively provided with longitudinal threads. The bar 7 is fitted with a thread 703. The two long frames of the bed frame 102 (commonly referred to as "bed edges,") are respectively provided with a longitudinal lead screw 7, and each of the longitudinal lead screws 7 is provided with a driven bevel gear 701, and the driving bevel gear 601 and the passive bevel gear 701 are composed of two pairs. The meshed bevel gear set. When the rocker 6 is rocked, the two longitudinal screws 7 rotate synchronously. Further, the rocker 600 of the rocker 6 can also be removed, and the rocker 6 is driven by the motor.

The outer cover of the reel stand 3 has a casing 302 having a U-shaped cross section, and the outer surface of the outer casing 302 in contact with the deformable bed surface 1 is smoothed, thereby reducing the space between the reel stand 3 and the deformable bed surface 2. Friction. Of course, if the roller shaft 4 is installed between the reel stand 3 and the deformable bed surface 2, that is, under the reel stand 3 The upper roller 4 is mounted on both sides and the two sides thereof, and the friction between the reel stand 3 and the deformable bed 2 is smaller.

The leading ends of the sheets 5 are respectively tensioned on the head 101 and the tail of the bed, and the tail ends are wound on the two reels 301 in different winding directions, respectively, and the reels 301 are linked by a pair of intermeshing gears 303. When the reel stand 3 is moved, a sheet 5 is unfolded, and its wound reel 301 is rotated, and the other reel 301 is driven by the intermeshing gear 303 to roll up another sheet 5. In addition, if the longitudinal teeth 7 are added to the two long side frames of the bed frame 102, the reel 301 can also be driven to achieve linkage by the gear mechanism. When the reel stand 3 is moved, the rack drives a reel through the gear mechanism 301 to unfold the sheets 5, drives another reel 301, and rolls up the sheets 5 . For a medical bed that can be raised to a backrest at one end, the two long bezels and longitudinal racks of the bed frame 102 should be arranged in two foldable sections, and correspondingly provided with a lifting mechanism. This is not only reliable, but the head end of the sheets does not have to be fixed at the head of the bed or at the end of the bed.

Embodiment 2: As shown in FIG. 2, except for the two ends of the reel stand 3, the two long sides of the deformable bed surface 2 of the medical bed of the present invention are connected with the bed frame 102 by a longitudinal zipper 8, and two of the reel stands The ends are respectively provided with two opposite zipper locks 801. When the reel stand 3 is moved, the front zipper lock 801 separates the two zipper tapes 802 that are engaged together, and the rear zipper lock 801 engages the separated two zipper tapes 802 together. The remaining components and structures are as described in the first embodiment.

Embodiment 3: As shown in FIG. 3, a plurality of cross bars 9 are arranged on the deformable bed surface, and a plurality of inserts 902 with return springs are disposed on the two long frames of the bed frame 102, and the inserts 902 are arranged. There is a pin 903, and a slot 904 is opened on the nut 703. The pin 903, the bed frame 102 and the sliding groove 904 on the nut 703 constitute a moving cam mechanism. When the pin 903 slides into the middle of the chute 904, the insert 902 exits the end of the crossbar 9 under the action of the chute 904; When the pin 903 slides out of the middle of the chute 904, the tab 902 is inserted under the end of the crossbar 9 by the return spring. Of course, if there is no chute 904, the tab 902 can be inserted directly below the end of the crossbar. The remaining components and structures are as described in the first embodiment.

Embodiment 4: As shown in FIG. 4, the reel 301 of the medical bed of the present invention is further provided with a spiral torsion spring 304, and the spiral torsion spring 304 is further provided with a reel 305. One end of the helical torsion spring 304 is fixed to the reel 301, and the other end is fixed to the reel 305. When the reel stand 3 is moved, a sheet 5 is unfolded, its helical torsion spring 304 is deformed and stored, and the other sheet 5 is rolled up by the energy released by its deformed helical torsion spring 304. The sheet 5, the reel 301, the helical torsion spring 304 and the reel 305 are constructed similar to an automatic roller blind mechanism. The remaining components and structures are as described in the second embodiment. . Embodiment 5: An air mattress is further disposed between the sheet and the deformable bed surface, and the air mattress is attached to the deformable bed surface 2, and the middle portion of the roller shaft 4 is provided with an annular groove for ventilation. The remaining components and structures are as described in the second embodiment. (figure omitted)

Embodiment 6: There are three flushing pipes between the two roller shafts 4, the middle of which is used for spraying water, and the two sides are used for jetting. The remaining components and structures are as described in the second embodiment. (figure omitted)

Claims

Claim

1. A medical bed for automatically changing sheets when not moving, characterized in that it comprises a bed frame provided with a bed head, a bed tail and a bed frame, a deformable bed surface, a reel stand and a roller shaft on both sides of the reel stand;

The two ends of the deformable bed surface are respectively fixed on the bed head and the tail of the bed, and are pressed between the roller shafts by the reel frame to form a flat and flat surface which is recessed downward at the reel stand;

There are two detachable reels on the reel stand, and two sheets are laid flat on the bed surface, extending from the head of the bed and the tail of the bed to the middle of the reel frame and wound on the corresponding reels;

The reel and the roller shaft are parallel to the cross section of the bed, and can move horizontally between the head of the bed and the tail of the bed with the reel stand. When the reel stand moves, one bed sheet is unfolded, and the other bed sheet is automatically rolled up;

The core is that the deformable bed surface can partially leave the bed surface on the bed surface to form a movable partial recessed space for the reel to complete the operation of receiving and unloading the sheets in the recessed space.

2. The medical bed for automatically changing sheets according to claim 1, wherein the roller shaft is disposed between the deformable bed surface and the reel stand.

3. The medical bed for automatically changing sheets according to claim 1, wherein: the reel cover outer cover has a U-shaped outer casing, and the outer casing is in contact with the deformable bed surface. The outer surface is smoothed.

The medical bed for automatically changing sheets according to claim 1, wherein: the two long frames of the bed frame are provided with longitudinal racks, and when the reel stand moves, the longitudinal racks are driven by the gear mechanism. One reel unfolds the sheets and the other reel rolls up the sheets.

The medical bed for automatically changing sheets according to claim 4, wherein: one end of the medical bed can be raised to a backrest, and two long frames and longitudinal racks of the bed frame are set to be Two sections are folded and equipped with corresponding lifting mechanisms.

6 . The medical bed of claim 1 , wherein the first end of the sheet is respectively fastened on the head and the tail of the bed, and the tail ends of the sheets are respectively wound in different winding directions. 6 . On the two reels, the two reels are linked by a pair of intermeshing gears.

7. The medical bed for automatically changing sheets according to claim 1, wherein: the reel jacket has a spiral torsion spring, and the spiral torsion spring is further provided with a reel, and one end of the helical torsion spring is fixed. On the reel, the other end is fixed to the reel, and when the reel stand is moved, one of the sheets is unfolded, the corresponding helical torsion spring is deformed and stored, and the other sheet is rolled up by the energy released by the deformed helical torsion spring.

The medical bed for automatically changing sheets according to any one of claims 1 to 7, wherein: the bed head or the tail of the bed is provided with a rocker, and the rocker is provided with two driving bevel gears. Each of the two long frames of the bed frame is respectively provided with a longitudinal screw, and each of the two screws is provided with a driven bevel gear, and two ends of the reel frame are respectively provided with a silk thread matched with the longitudinal screw. The driving bevel gear and the driven bevel gear form two pairs of meshing bevel gear sets. When the rocker is rocking, the two longitudinal screws rotate synchronously.

9. The medical bed of claim 8, wherein the two long sides of the deformable bed face and the bed frame are longitudinally zippered except at both ends of the reel stand. The two ends of the reel stand are respectively provided with two opposite zipper pins. When the reel stand moves, the front zipper locks separate the two zipper tapes that are meshed together, and the rear zipper locks separate the two zipper tapes. Engage together.

10 . The medical bed of claim 8 , wherein: the plurality of cross bars are arranged on the deformable bed surface, and the two ends of the cross bar are provided with slots. A plurality of inserts with a return spring are arranged on the two long frames of the bed frame, and a pin is arranged on the insert, the chute is provided with a chute, and the chute on the pin, the bed frame and the nut constitute a moving cam. When the pin slides into the middle of the chute, the insert exits the slot under the action of the chute. When the pin slides out of the middle of the chute, the insert is inserted into the slot by the return spring. ,

11 . The medical bed of claim 1 , wherein: the mattress is further provided with a mattress between the bed and the deformable bed surface, and the mattress is attached to the deformable bed surface; or The mattress is an air mattress that, like the sheets, is mounted on a detachable reel on the reel stand.

12. The medical bed for automatically changing sheets according to claim 1, wherein: the middle portion of the roller shaft is provided with an annular groove for ventilation, and three irrigation tubes are arranged between the two roller shafts. Used to spray water, used on both sides for jets.