CN116035817A

CN116035817A - Nursing bed for assisting turning over

Info

Publication number: CN116035817A
Application number: CN202310212671.3A
Authority: CN
Inventors: 栾青霞; 吴春艳
Original assignee: Affiliated Hospital of Weifang Medical University
Current assignee: Affiliated Hospital of Weifang Medical University
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-05-02

Abstract

The invention relates to the technical field of medical appliances, in particular to an auxiliary turn-over nursing bed, which is characterized in that a bed board is arranged on a bed frame, the bed board comprises a middle bed board and two movable bed boards which are oppositely arranged at the left side and the right side of the middle bed board, the middle bed board is fixedly arranged on the bed frame, one side of the movable bed board, which is close to the middle bed board, is rotationally connected to the bed frame, a rolling shaft is rotationally arranged at one side of the movable bed board, which is far away from the middle bed board, a supporting belt is fixedly connected between the two rolling shafts, a tightening belt is fixedly connected at the bottom of the supporting belt, which is positioned between the middle bed board and the movable bed board, and one end of the tightening belt, which is far away from the supporting belt, is wound on an auxiliary roller; in the process of turning over, the movable bed board does not directly act on a human body, but drives a patient to turn over through the flexible supporting belt, so that the comfort level of turning over is higher, and the damage to the patient caused by the rotation of the movable bed board can be avoided.

Description

Nursing bed for assisting turning over

Technical Field

The invention relates to the technical field of medical appliances, in particular to an auxiliary turning-over nursing bed.

Background

The long-term bedridden patients can cause blood circulation blockage due to long-term compression of body parts, bedsores are easy to occur on the parts of the patients with the compression, and more pain is brought to the patients. Therefore, turning over the patient becomes an important nursing task. Turning over the patient is a very heavy task for medical staff and patient families.

The invention patent with the application number of CN202210025853.5 discloses an auxiliary mechanism for a patient suffering from cancer to lie down and turn over, which comprises a sickbed body, wherein a fixed bed plate is fixedly arranged in the middle of the upper end surface of the sickbed body, and movable bed plates are arranged on the left side and the right side of the fixed bed plate. This based on cancer patient is laid and is stood up auxiliary mechanism, through the cooperation between sick bed body, movable bed board, turning device and the No. two motors, utilize No. two motors to drive turning device's motion, realized movable bed board's activity effect, reached the effect of standing up to the patient, solved the manual work effectively and to the problem that the patient stood up, replaced artificial mode by adopting the mode of mechanical to stand up, alleviateed medical personnel's work load, reduced the manual work and stood up and caused the painful sense of patient, simultaneously, mechanical the time of standing up has still been quickened patient and has stood up.

The turnover assisting mechanism drives the movable bed board to rigidly rotate through the motor so as to realize the turnover of the patient, the comfort level of the patient in the turnover process is poor, and the risk of clamping or damaging the patient exists in the rotation process of the movable bed board.

Disclosure of Invention

The invention aims to solve the technical problems of providing an auxiliary turning nursing bed which has high comfort level for turning a patient, and can avoid hurting the patient in the turning process so as to solve the problems of poor comfort level and low safety in the prior art for assisting the patient to turn.

In order to solve the technical problems, the technical scheme of the invention is as follows: the nursing bed comprises a bed frame, wherein the bed frame is provided with a bed board, the bed board comprises a middle bed board and two movable bed boards which are oppositely arranged at the left side and the right side of the middle bed board, the middle bed board is fixedly arranged on the bed frame, one side, close to the middle bed board, of the movable bed board is rotationally connected to the bed frame, and the rotating axis of the movable bed board extends forwards and backwards; the movable bed board is provided with a winding shaft which extends forwards and backwards, one side of the movable bed board, which is far away from the middle bed board, is rotatably provided with a winding shaft which extends forwards and backwards, a supporting belt which covers the upper surfaces of the middle bed board and the two movable bed boards is fixedly connected between the two winding shafts, the bottom of the supporting belt, which is positioned between the middle bed board and the movable bed board, is fixedly connected with a tightening belt, one end of the tightening belt, which is far away from the supporting belt, is wound on an auxiliary roller, the auxiliary roller is rotatably arranged on a bed frame, a spring which is used for driving the auxiliary roller to wind the tightening belt is connected between the auxiliary roller and the bed frame, and a ratchet mechanism which is used for limiting the auxiliary roller to release the tightening belt is also arranged on the bed frame; the end part of the rolling shaft is fixedly provided with a gear, and the bedstead is fixedly provided with an arc-shaped rack matched with the gear; the bed frame is provided with a driving mechanism for driving the movable bed board to rotate.

As the preferable technical scheme, the front and rear ends of one side of the movable bed board, which is close to the middle bed board, are fixedly provided with connecting shafts which extend forwards and backwards, and the connecting shafts are rotatably arranged on the bed frame.

As the preferable technical scheme, the driving mechanism comprises a worm wheel fixedly arranged on the connecting shaft, a worm driven to rotate by a motor is arranged on the bedstead, and the worm is meshed with the worm wheel.

As a preferable technical scheme, the ratchet mechanism comprises a ratchet fixedly arranged on the auxiliary roller, a swinging plate is rotatably arranged on the bedstead, an axis of rotation of the swinging plate extends forwards and backwards, a pawl positioned at the bottom of the ratchet is arranged at one end of the swinging plate, a torsion spring is connected between the swinging plate and the bedstead, and the torsion spring enables the pawl and the ratchet to keep a separated state when no external force acts; the worm extends vertically, the coaxial fixed mounting of one end of worm has the lead screw, it has the ejector pad to revolve on the lead screw, the vertical slidable mounting of ejector pad is in on the bedstead, the swinging plate keeps away from the one end of pawl extends to the below that is located its homonymy the ejector pad, when the worm drives corresponding movable bed board rotates to the horizontality, corresponding the gear breaks away from the rack, just the ejector pad promotes the swinging plate keeps away from the one end of pawl rotates downwards, and makes the pawl with the ratchet meshes.

As a further improvement, two lifting guardrails are oppositely arranged on the bedstead left and right, and the middle bed board and the two movable bed boards are both positioned between the two guardrails.

As a further improvement, a bolt for limiting the up-and-down movement of the guardrail is arranged on the bedstead, a pin hole matched with the bolt is arranged on the guardrail, and when the pin hole is aligned with the bolt, the upper end of the guardrail is higher than the upper surface of the middle bed board.

As a further improvement, a spring for pushing the bolt to be inserted into the pin hole is connected between the bolt and the bedstead.

As a further improvement, two vertically extending lead screws are arranged on the bedstead in a left-right relative rotation mode, supporting plates for pushing the guardrails on the same side of the lead screws to move upwards are screwed on the lead screws, and one ends of the corresponding guardrails extend to the upper sides of the supporting plates.

As a further improvement, the screw rod is in transmission connection with the worm on the opposite side of the screw rod, and when the worm drives the corresponding movable bed plate to rotate upwards, the screw rod on the opposite side of the movable bed plate rotates and drives the corresponding supporting plate to rise.

As a preferred technical solution, the screw rod and the screw rod positioned at the opposite side are connected through a synchronous belt.

After the technical scheme is adopted, the invention has the beneficial effects that:

according to the movable bed board, the movable bed board on one side is driven to rotate upwards through the driving mechanism, in the process of rotating the movable bed board upwards, the supporting belt between the wind-up roller on the movable bed board and the tightening belt on the opposite side of the wind-up roller is tightly supported, one side of a patient body is lifted upwards through the supporting belt, so that the patient is assisted to turn over to the side far away from the movable bed board, in the process of turning over, the movable bed board does not directly act on a human body, but the patient is driven to turn over through the flexible supporting belt, the comfort level of turning over is higher, and the patient is prevented from being hurt when the movable bed board rotates;

this application is when assisting the patient to stand up, drives the activity bed board of corresponding one side through the worm and upwards rotates, and simultaneously, the worm drives the lead screw forward rotation that is located its one side that is relative through the lead screw and the hold-in range of its lower extreme, and the lead screw drives the layer board and moves upwards along rectangular shape hole and rise to when the guardrail does not rise, drive the guardrail of one side opposite with the activity bed board through the layer board and rise automatically, thereby roll off from the bed board when avoiding the patient to stand up, better to the protectiveness of patient.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of A-A in FIG. 1;

FIG. 3 is a schematic view in section B-B of the support plate of FIG. 1;

FIG. 4 is a schematic top view of the swing plate of FIG. 3;

FIG. 5 is a state diagram of an embodiment of the invention for assisting a patient in turning over to the right;

FIG. 6 is a state diagram of the embodiment of the invention in which the pawl on the left side is disengaged from the ratchet wheel;

FIG. 7 is a schematic cross-sectional view of C-C in FIG. 6.

In the figure: 1-a bed frame; 2-supporting plates; 3-connecting plates; 4-vertical part; 5-horizontal part; 6, a bed board; 7-an intermediate bed board; 8-a movable bed board; 9-connecting shafts; 10-a wind-up roll; 11-a support belt; 12, tightening the belt; 13-auxiliary rollers; 14-a clockwork spring; 15-a mounting cavity; 16-gear; 17-arc holes; 18-rack; 19-worm gear; 20-a motor bearing plate; 21-a worm; 22-ratchet wheel; 23-swinging plate; 24-a first shaft pin; 25-pawl; 26-a second pin; 27-a torsion spring; 28-torsion springs; 29-screw rod; 30-pushing blocks; 31-a chute; 32-guard rails; 33-upper cross bar; 34-a bottom rail; 35-a vertical rod; 36-plug pins; 37-pin holes; 38-a spring; 39-mounting plate; 40-baffle plates; 41-screw rod; 42-supporting plates; 43-elongated holes; 44-synchronous belt; 45-motor.

Detailed Description

As shown in fig. 1 to 7, an auxiliary turn-over nursing bed comprises a bed frame 1, wherein the bed frame 1 comprises two support plates 2 which are oppositely arranged front and back, the bottoms of the support plates 2 are provided with support legs, two connecting plates 3 which are oppositely arranged left and right are fixedly arranged between the two support plates 2 through bolts, the cross section of each connecting plate 3 is L-shaped, and each connecting plate 3 is provided with a vertical part 4 and a horizontal part 5 which extends horizontally inwards.

A bed board 6 is arranged on the bed frame 1 between the two connecting boards 3, and the bed board 6 comprises a middle bed board 7 and two movable bed boards 8 which are oppositely arranged at the left side and the right side of the middle bed board 7; the front end and the rear end of the middle bed plate 7 are respectively fixedly arranged on the support plate 2 at the corresponding side through bolts; one side of the movable bed plate 8, which is close to the middle bed plate 7, is rotatably connected to the bed frame 1, the axis of rotation of the movable bed plate 8 extends back and forth, specifically, the front end and the rear end of one side of the movable bed plate 8, which is close to the middle bed plate 7, are fixedly provided with connecting shafts 9 extending back and forth through bolts, and the two connecting shafts 9 are rotatably installed on the support plates 2 on the corresponding sides through bearings respectively. When the movable bed board 8 rotates to a horizontal state, as shown in fig. 2, the upper surface of the movable bed board 8 is flush with the upper surface of the middle bed board 7, the movable bed board 8 is propped against the horizontal part 5 of the connecting board 3 at the same side, and the horizontal part 5 of the connecting board 3 plays a supporting and limiting role on the movable bed board 8 at the same side.

As shown in fig. 1 and 2, two protruding parts are oppositely arranged in front of and behind one side of the movable bed plate 8 far away from the middle bed plate 7, a winding roller 10 extending front and back is rotatably arranged on the two protruding parts through a bearing, and a supporting belt 11 covering the upper surfaces of the middle bed plate 7 and the two movable bed plates 8 is fixedly connected between the two winding rollers 10. The bottom of the supporting belt 11 between the middle bed plate 7 and the movable bed plate 8 is fixedly connected with a tightening belt 12, the supporting belt 11 and the tightening belt 12 are connected through sewing, one end of the tightening belt 12 far away from the supporting belt 11 is wound on the auxiliary roller 13, the two auxiliary rollers 13 are symmetrically arranged left and right along the central line of the middle bed plate 7, the two auxiliary rollers 13 are respectively arranged right below the corresponding movable bed plate 8 and the middle bed plate 7, two ends of the auxiliary rollers 13 are respectively rotatably mounted on the supporting plates 2 on the corresponding side through bearings, a spring 14 for driving the auxiliary rollers 13 to wind the tightening belt 12 is connected between the auxiliary rollers 13 and the bed frame 1, mounting cavities 15 are respectively arranged in the two supporting plates 2, as shown in fig. 3, the end parts of the auxiliary rollers 13 extend into the corresponding mounting cavities 15, supporting blocks on one side of the auxiliary rollers 13 are arranged on the inner walls of the mounting cavities 15, one ends of the spring 14 are embedded into the auxiliary rollers 13, and the other ends of the spring springs 14 are embedded into the supporting blocks, when the two movable bed plates 8 are respectively rotated to a horizontal state, the spring 14 drives the auxiliary rollers 13 to rotate and wind the tightening belt 12, the spring 14 is respectively, and the middle bed plate 7 is rotatably mounted on the supporting plates 2 on the corresponding side, and the supporting plates 11 between the movable bed plate 8 are kept flat and the middle bed plate 8, and the surface of the middle bed plate 11 is kept flat, and the surface of the movable bed plate 11 is stretched down, and the surface of the movable bed plate 8 is kept flat, and the surface of the middle bed plate 11 is stretched.

The bed frame 1 is further provided with a ratchet mechanism for limiting the auxiliary roller 13 to release the tightening strap 12, specifically, when the ratchet mechanism acts on the auxiliary roller 13, the auxiliary roller 13 can only rotate around a specific direction under the action of the clockwork spring 14 and wind up the tightening strap 12, but cannot reversely rotate to release the tightening strap 12.

As shown in fig. 3, the end of the wind-up roll 10 extends into a corresponding mounting cavity 15 and is fixedly provided with a gear 16, an arc-shaped hole 17 for the wind-up roll 10 to pass through is arranged on the supporting plate 2, and an arc-shaped rack 18 matched with the gear 16 is fixedly arranged in the mounting cavity 15 through a bolt; the bed frame 1 is provided with a driving mechanism for driving the movable bed plate 8 to rotate.

When the bed is used daily, as shown in fig. 1, 2 and 3, the two movable bed boards 8 are in a horizontal state, the upper surfaces of the movable bed boards 8 and the upper surface of the middle bed board 7 are kept flush, the auxiliary roller 13 winds the tightening belt 12 under the action of the spring 14, and the tightening belt 12 tightens the supporting belt 11 positioned between the middle bed board 7 and the movable bed board 8 downwards, so that the supporting belt 11 keeps flat and smooth on the upper surfaces of the middle bed board 7 and the movable bed board 8, and the comfort level of a patient lying on the bed board 6 is improved.

When a patient needs to be assisted in turning over, the driving mechanism drives the movable bed plate 8 on one side to rotate upwards, and adjusts the ratchet mechanism on the auxiliary roller 13 positioned on the same side as the movable bed plate 8, so that the ratchet mechanism releases the limit on the rotation of the auxiliary roller 13; when the movable bed plate 8 rotates upwards and drives the gear 16 on the upper winding roller 10 to be meshed with the corresponding rack 18, the rack 18 acts on the gear 16 and drives the gear 16 to rotate around a specific direction in the process of rotating the movable bed plate 8 upwards, and the gear 16 drives the winding roller 10 on the movable bed plate 8 to wind the supporting belt 11; at the same time, the auxiliary roller 13 positioned on the same side of the movable bed plate 8 is pulled by the supporting belt 11 thereon and rotates reversely to release the supporting belt 11; until the movable bed board 8 rotates upwards and the supporting belt 11 between the wind-up roller 10 on the movable bed board 8 and the tightening belt 12 positioned on the opposite side is tightened, the supporting belt 11 lifts one side of the patient body upwards to assist the patient to turn over to the side far away from the movable bed board 8, the movable bed board 8 does not directly act on the human body in the process of turning over, but drives the patient to turn over through the flexible supporting belt 11, the comfort level of turning over is higher, and the damage to the patient caused when the movable bed board 8 rotates can be avoided.

Specifically, when the patient needs to be assisted to turn over to the right side, the movable bed plate 8 on the left side is driven by the corresponding driving mechanism to rotate clockwise and upwards, and the ratchet mechanism on the auxiliary roller 13 on the left side is regulated to release the limit of the ratchet mechanism on the rotation of the auxiliary roller 13 on the left side; when the left movable bed plate 8 rotates upwards and drives the gear 16 on the upper winding roller 10 to be meshed with the corresponding rack 18, the rack 18 acts on the gear 16 and drives the gear 16 to rotate anticlockwise in the process of rotating the left movable bed plate 8 upwards, and the gear 16 drives the winding roller 10 on the left movable bed plate 8 to wind the supporting belt 11; at the same time, the auxiliary roller 13 located on the left side is pulled by the tightening strap 12 thereon and rotates reversely to release the supporting strap 11; until the left movable bed plate 8 rotates upwards to the position that a supporting belt 11 between a wind-up roll 10 on the left movable bed plate 8 and a tightening belt 12 positioned on the right is tightened, as shown in fig. 5 and 6, the left side of the patient body is lifted upwards through the supporting belt 11 so as to drive the patient body to rotate clockwise and rightward, thereby assisting the patient to turn over on the right side. Similarly, when the patient needs to be assisted to turn over to the left, the movable bed plate 8 on the right side is driven to rotate anticlockwise and upwards by the corresponding driving mechanism, and the ratchet mechanism on the auxiliary roller 13 on the right side is regulated, so that the limit on the rotation of the auxiliary roller 13 on the right side can be relieved by the ratchet mechanism.

As shown in fig. 3, the end of the connecting shaft 9 extends into the corresponding installation cavity 15, the driving mechanism comprises a worm wheel 19 fixedly installed at the end of the connecting shaft 9, a motor bearing plate 20 is arranged in the installation cavity 15, a motor 45 is installed on the motor bearing plate 20 through a bolt, the rotating shaft of the motor 45 is fixedly connected with the upper end of a worm 21 through a coupler, and the worm 21 is meshed with the worm wheel 19. Specifically, when the motor 45 works, the worm 21 is driven to rotate, the worm 21 acts on the worm wheel 19 to drive the connecting shaft 9 to rotate, and then the connecting shaft 9 drives the movable bed plate 8 to rotate upwards or downwards.

As shown in fig. 3 and 4, the end of the auxiliary roller 13 extends into the corresponding installation cavity 15, the ratchet mechanism comprises a ratchet 22 fixedly installed at the end of the auxiliary roller 13, a swinging plate 23 is rotatably installed in the installation cavity 15, the rotating axis of the swinging plate 23 extends back and forth, the middle part of the swinging plate 23 is rotatably connected with the inner wall of the installation cavity 15 through a first shaft pin 24 extending back and forth, one end of the swinging plate 23 is provided with a pawl 25 positioned at the bottom of the ratchet 22, the pawl 25 is rotatably connected with the swinging plate 23 through a second shaft pin 26 extending back and forth, a torsion spring 27 is connected between the pawl 25 and the swinging plate 23, the torsion spring 27 is sleeved on the second shaft pin 26, a torsion spring 28 is connected between the swinging plate 23 and the inner wall of the installation cavity 15, the torsion spring 28 is sleeved on the first shaft pin 24, and the torsion spring 28 keeps the pawl 25 and the ratchet 22 in a separated state when no external force acts; the worm 21 vertically extends, the lower extreme of worm 21 passes through the upper end of shaft coupling coaxial fixed connection lead screw 29, the lower extreme of lead screw 29 passes through the bearing rotation and installs on the inner wall of installation cavity 15, the last ejector pad 30 that closes of lead screw 29, ejector pad 30 vertical sliding mounting is in installation cavity 15, all be equipped with on the front and back lateral wall of installation cavity 15 with ejector pad 30 assorted spout 31, the one end that pawl 25 was kept away from to swinging plate 23 extends to the below that is located the ejector pad 30 of homonymy, the one end that pawl 25 was kept away from to swinging plate 23 is equipped with and dodges the breach with lead screw 29 assorted, when worm 21 drove corresponding movable bed board 8 to rotate to the horizontality, as shown in fig. 3, corresponding gear 16 breaks away from rack 18, and ejector pad 30 promotes the one end that pawl 25 was kept away from to swing plate 23 and rotates downwards, and make pawl 25 and ratchet 22 mesh.

In the initial state, the two movable bed boards 8 are both in a horizontal state, as shown in fig. 3, at this time, the two pushing blocks 30 respectively abut against one end of the corresponding swinging plate 23 far away from the pawl 25, the corresponding pawl 25 is kept in an engaged state with the ratchet 22, the ratchet 22 and the corresponding auxiliary roller 13 are limited to reversely rotate by the pawl 25 to release the tightening belt 12, and at this time, the two auxiliary rollers 13 can only positively rotate to wind the tightening belt 12 under the action of the spring 14.

When a patient is assisted to turn over, as shown in fig. 5 and 6, the worm 21 at one side is driven to rotate positively by the corresponding motor 45, and the worm 21 drives the corresponding movable bed plate 8 to rotate upwards; meanwhile, the worm 21 drives the screw rod 29 at the lower end of the worm to rotate positively, the screw rod 29 drives the push block 30 on the screw rod to move upwards along the chute 31, and when the push block 30 moves upwards and is separated from the corresponding swinging plate 23, one end of the swinging plate 23 provided with the pawl 25 rotates downwards under the drive of the torsion spring 28 so as to separate the pawl 25 from the ratchet 22, thereby releasing the limit of the pawl 25 on the rotation of the auxiliary roller 13 at the same side with the movable bed plate 8; the worm 21 continues to drive the movable bed plate 8 to rotate upwards, so that the movable bed plate 8 drives the gear 16 on the upper winding roller 10 to be meshed with the corresponding rack 18, and the rack 18 drives the gear 16 and the winding roller 10 to rotate forwards to wind the supporting belt 11 until the supporting belt 11 between the winding roller 10 on the movable bed plate 8 and the tightening belt 12 positioned on the opposite side of the winding roller is tightly supported, and the patient is assisted to turn over.

When the patient turns over, the worm 21 is driven to rotate reversely through the corresponding motor 45, the worm 21 drives the corresponding movable bed plate 8 to rotate downwards, the rack 18 drives the gear 16 and the winding roller 10 to rotate reversely to release the supporting belt 11, and the auxiliary roller 13 on the same side as the movable bed plate 8 rotates positively to wind the tightening belt 12 under the drive of the spring 14; at the same time, the worm 21 drives the screw rod 29 at the lower end to rotate reversely, the screw rod 29 drives the push block 30 on the screw rod to move downwards along the sliding groove 31, when the push block 30 moves downwards to be in contact with the swinging plate 23, the end, far away from the pawl 25, of the swinging plate 23 is driven by the push block 30 to rotate downwards until the movable bed plate 8 rotates downwards to a horizontal state, the movable bed plate 8 drives the gear 16 to be separated from the rack 18, and simultaneously the swinging plate 23 drives the pawl 25 to rotate upwards to be meshed with the ratchet wheel 22, so that the ratchet wheel 22 and the corresponding auxiliary roller 13 are limited to reversely rotate again through the pawl 25 to release the tightening belt 12.

As shown in fig. 2, 3 and 7, two liftable guardrails 32 are oppositely arranged left and right on the bedstead 1, each guardrail 32 comprises an upper cross rod 33, a lower cross rod 34 and a plurality of vertical rods 35 which are fixedly arranged between the upper cross rod 33 and the lower cross rod 34 at uniform intervals, each upper cross rod 33 and each lower cross rod 34 extend front and back, a mounting hole matched with each vertical rod 35 is formed in the horizontal part 5 of the connecting plate 3, the two guardrails 32 are respectively arranged on the connecting plate 3 on the corresponding side in an up-down sliding manner through the vertical rods 35, and the middle bed plate 7 and the two movable bed plates 8 are positioned between the two guardrails 32. Raising the guard rail 32 to prevent the patient from rolling off the bed board 6; or lowering the guard rail 32 to facilitate care by the healthcare worker for the patient.

As shown in fig. 7, the bed frame 1 is provided with a bolt 36 for limiting the up-and-down movement of the guard rail 32, the vertical rod 35 in the middle is provided with a pin hole 37 matched with the bolt 36, and when the pin hole 37 is aligned with the bolt 36, the upper end of the guard rail 32 is higher than the upper surface of the middle bed plate 7. Specifically, when the guard rail 32 is raised to the point that the pin holes 37 are aligned with the pins 36, the pins 36 are inserted into the pin holes 37 to restrict the guard rail 32 from moving up and down, so that the upper end of the guard rail 32 is kept higher than the middle bed plate 7, thereby preventing the patient from rolling off the bed plate 6; or the latch 36 is pulled out of the pin hole 37, thereby lowering the guard rail 32 to facilitate nursing of the patient by the medical staff.

The spring 38 used for pushing the bolt 36 to insert into the pin hole 37 is connected between the bolt 36 and the bedstead 1, specifically, two mounting plates 39 are fixedly mounted at the bottom of the horizontal part 5 of the connecting plate 3 relatively back and forth through bolts, the bolt 36 is mounted on the two mounting plates 39 in a sliding mode back and forth, a baffle 40 positioned between the two mounting plates 39 is welded on the bolt 36, the spring 38 is sleeved on the bolt 36, two ends of the spring 38 are respectively supported on the baffle 40 and the mounting plates 39 far away from one side of the pin hole 37, and when the guardrail 32 is lifted to align the pin hole 37 with the bolt 36, the bolt 36 is pushed to automatically insert into the pin hole 37 through the elastic force of the spring 38, so that the use is more convenient.

As shown in fig. 3, 6 and 7, two vertically extending screw rods 41 are installed in the installation cavity 15 in a left-right relative rotation mode, the upper end and the lower end of each screw rod 41 are installed on the inner wall of the installation cavity 15 in a rotation mode through bearings, a supporting plate 42 for pushing the guardrail 32 on the same side of each screw rod 41 to move upwards is screwed on each screw rod 41, an elongated hole 43 is formed in one side, close to the bed plate 6, of the installation cavity 15, one end of each supporting plate 42 is installed in the elongated hole 43 in a vertically sliding mode, and one end of each supporting plate 42 penetrates through the elongated hole 43 and extends to the lower portion of the upper cross rod 33 of the guardrail 32 on the same side of each supporting plate.

As shown in fig. 3 and 6, the screw 41 is in driving connection with the worm 21 on the opposite side thereof, in particular, the screw 41 is connected with the screw 29 on the opposite side thereof by a timing belt 44, that is, the screw 41 on the left side is connected with the screw 29 on the right side and the screw 41 on the right side is connected with the screw 29 on the left side by the timing belt 44, respectively, and when the worm 21 drives the corresponding movable bed plate 8 to rotate upward, the screw 41 on the opposite side of the movable bed plate 8 rotates and drives the corresponding pallet 42 to rise.

When the patient is assisted to turn over, the worm 21 on one side is driven to rotate positively by the corresponding motor 45, and the worm 21 drives the movable bed plate 8 on the corresponding side to rotate upwards; meanwhile, the worm 21 drives the lead screw 41 positioned on the opposite side of the worm through the lead screw 29 and the synchronous belt 44 at the lower end of the worm to rotate positively, and the lead screw 41 drives the supporting plate 42 to move upwards along the strip-shaped hole 43 to lift, so that when the guardrail 32 is not lifted, the guardrail 32 on the opposite side of the movable bed plate 8 is driven by the supporting plate 42 to lift automatically, and the patient is prevented from rolling off the bed plate 6 when turning over.

Specifically, when the patient needs to be assisted to turn over to the right, the corresponding motor 45 drives the left worm 21 to rotate forward, and the left worm 21 drives the left movable bed plate 8 to rotate upwards; meanwhile, the left worm 21 drives the right screw 41 to rotate positively through the screw 29 and the synchronous belt 44 at the lower end of the left worm, the right screw 41 drives the corresponding supporting plate 42 to move upwards along the strip-shaped hole 43 to be lifted, and the supporting plate 42 drives the right guardrail 32 to be lifted automatically, as shown in fig. 6 and 7, so that the patient is prevented from falling off the bed plate 6 when turning over to the right. Similarly, when the patient needs to be assisted to turn over to the left, the worm 21 on the right side is driven to rotate positively by the corresponding motor 45, and the worm 21 on the right side drives the movable bed plate 8 on the right side to rotate upwards; meanwhile, the worm 21 on the right drives the screw 41 on the left to rotate positively through the screw 29 and the synchronous belt 44 at the lower end of the worm, the screw 41 on the left drives the corresponding supporting plate 42 to move upwards along the strip-shaped hole 43 to lift, and the supporting plate 42 drives the guardrail 32 on the left to lift automatically, so that the patient is prevented from falling off the bed plate 6 when turning over leftwards.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an supplementary nursing bed that stands up, includes the bedstead, be equipped with bed board, its characterized in that on the bedstead: the bed board comprises a middle bed board and two movable bed boards which are oppositely arranged at the left side and the right side of the middle bed board, the middle bed board is fixedly arranged on the bed frame, one side, close to the middle bed board, of the movable bed board is rotationally connected to the bed frame, and the axis of rotation of the movable bed board extends forwards and backwards; the movable bed board is provided with a winding shaft which extends forwards and backwards, one side of the movable bed board, which is far away from the middle bed board, is rotatably provided with a winding shaft which extends forwards and backwards, a supporting belt which covers the upper surfaces of the middle bed board and the two movable bed boards is fixedly connected between the two winding shafts, the bottom of the supporting belt, which is positioned between the middle bed board and the movable bed board, is fixedly connected with a tightening belt, one end of the tightening belt, which is far away from the supporting belt, is wound on an auxiliary roller, the auxiliary roller is rotatably arranged on a bed frame, a spring which is used for driving the auxiliary roller to wind the tightening belt is connected between the auxiliary roller and the bed frame, and a ratchet mechanism which is used for limiting the auxiliary roller to release the tightening belt is also arranged on the bed frame; the end part of the rolling shaft is fixedly provided with a gear, and the bedstead is fixedly provided with an arc-shaped rack matched with the gear; the bed frame is provided with a driving mechanism for driving the movable bed board to rotate.

2. An assisted turn-over care bed as claimed in claim 1 wherein: the movable bed board is characterized in that connecting shafts extending forwards and backwards are fixedly arranged at the front end and the rear end of one side, close to the middle bed board, of the movable bed board, and the connecting shafts are rotatably arranged on the bed frame.

3. An assisted turn-over care bed as claimed in claim 2 wherein: the driving mechanism comprises a worm wheel fixedly arranged on the connecting shaft, a worm driven by a motor to rotate is arranged on the bedstead, and the worm is meshed with the worm wheel.

4. A turn-over assisting care bed as claimed in claim 3, wherein: the ratchet mechanism comprises a ratchet fixedly arranged on the auxiliary roller, a swinging plate is rotatably arranged on the bedstead, an axis of rotation of the swinging plate extends forwards and backwards, a pawl positioned at the bottom of the ratchet is arranged at one end of the swinging plate, a torsion spring is connected between the swinging plate and the bedstead, and the torsion spring enables the pawl and the ratchet to keep a separated state when no external force acts; the worm extends vertically, the coaxial fixed mounting of one end of worm has the lead screw, it has the ejector pad to revolve on the lead screw, the vertical slidable mounting of ejector pad is in on the bedstead, the swinging plate keeps away from the one end of pawl extends to the below that is located its homonymy the ejector pad, when the worm drives corresponding movable bed board rotates to the horizontality, corresponding the gear breaks away from the rack, just the ejector pad promotes the swinging plate keeps away from the one end of pawl rotates downwards, and makes the pawl with the ratchet meshes.

5. An assisted turn-over care bed as claimed in claim 4 wherein: two guardrails capable of lifting are oppositely arranged on the bedstead left and right, and the middle bed board and the two movable bed boards are both positioned between the two guardrails.

6. An assisted turn-over care bed as claimed in claim 5 wherein: the bed frame is provided with a bolt used for limiting the up-and-down movement of the guardrail, the guardrail is provided with a pin hole matched with the bolt, and when the pin hole is aligned with the bolt, the upper end of the guardrail is higher than the upper surface of the middle bed board.

7. An assisted turn-over care bed as claimed in claim 6 wherein: a spring for pushing the bolt to be inserted into the pin hole is connected between the bolt and the bedstead.

8. An assisted turn-over care bed as claimed in claim 5 wherein: two vertically extending lead screws are installed on the bedstead in a left-right relative rotation mode, supporting plates for pushing the guardrails on the same side of the lead screws to move upwards are screwed on the lead screws, and one ends of the corresponding guardrails extend to the upper portions of the supporting plates.

9. An assisted turn-over care bed as claimed in claim 8 wherein: the screw rod is in transmission connection with the worm on the opposite side of the screw rod, and when the worm drives the corresponding movable bed plate to rotate upwards, the screw rod on the opposite side of the movable bed plate rotates and drives the corresponding supporting plate to rise.

10. An assisted turn-over care bed as claimed in claim 9 wherein: the screw rod is connected with the screw rod positioned on the opposite side of the screw rod through a synchronous belt.