CN111991155A

CN111991155A - Back lifting back plate adjusting device for nursing bed

Info

Publication number: CN111991155A
Application number: CN202010805510.1A
Authority: CN
Inventors: 卢华隆; 陈长春; 卢朝阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2020-11-27

Abstract

The invention belongs to the technical field of medical equipment. In order to solve the defects in the use process of the prior art, the invention provides a back lifting back plate adjusting device for a nursing bed, which comprises a bed frame and a back plate capable of being turned over up and down on the bed frame; be equipped with upset drive arrangement in the bottom of backplate, the surface of backplate is equipped with the slide, and slide both sides block just the slide can freely slide its characterized in that on the backplate: the back plate is provided with a longitudinal hollow groove, and a rack is fixedly arranged at the back of the sliding plate corresponding to the hollow groove; the bottom of the back plate is provided with a driving wheel meshed with the rack, the driving wheel is fixed on the driving shaft, the driving shaft is supported and fixed on the back plate and can freely rotate through the driving device, the driving device can enable the driving shaft to synchronously rotate in the forward and reverse directions along with the up-and-down overturning of the back plate, and the driving wheel drives the rack to move up and down to enable the sliding plate to slide up and down through the rotation of the driving shaft. The invention has the beneficial effects that: the sliding is stable, and the structure is more compact.

Description

Back lifting back plate adjusting device for nursing bed

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a back lifting and back plate adjusting device for a nursing bed.

Background

Most of the existing nursing beds are provided with a back lifting structure, namely, when a patient lies on a bed surface, the back of the patient is lifted up through overturning a back bed plate to complete the conversion from lying to sitting. One end of the back plate is connected through a hinge, the back of the back plate is connected with a push rod, and the push rod moves to drive the back plate to complete the action of turning up and down. Such as the bulletin number: CN203915290U, a prevent human extrusion device on nursing bed back, notice no: CN203208247U, a back device that is applied to nursing bed, above-mentioned prior art all discloses the technical scheme that sets up the activity backplate on the nursing bed. Meanwhile, if a normal person changes from lying to sitting, the back of the person can move upwards automatically, and the extrusion feeling of the back and the abdomen caused by the compression of the backboard is relieved. However, since many bedridden patients do not have the ability of autonomous adjustment, not only the back can be pulled strongly, but also suffocation can be caused in the posture conversion process, and particularly, secondary injury can be caused to the bedridden patients with bedsores on the back for a long time.

In view of the above technical problems, the bulletin number: corresponding solutions are provided in patent documents published by CN203915290U and CN 203208247U. Namely, a slidable sliding plate is arranged on the back plate, the sliding plate can slide upwards while the back plate turns upwards, and the sliding plate can slide downwards when the back plate turns downwards. Through the arrangement of the sliding plate which can synchronously move with the turnover action of the back plate, the compression on patients during the back-up process can be effectively relieved by utilizing the up-and-down sliding of the sliding plate. The technical scheme disclosed by CN203915290U is as follows: including the bed board, the bedstead, the back of the bed, the slide of block on the back of the bed and the gyro wheel of setting between the back of the bed and slide, still include two cables, the one end of every cable is fixed on the slide, the other end of every cable is fixed on the footpost of bedstead bottom, there is the first pulley of installing on the back of the bed between the one end of cable and the other end of cable, install the second pulley in the bedstead bottom, install the third pulley on bedstead upper portion, the diversion wheel of setting in the bedstead bottom, wherein the third pulley is by spring coupling on bedstead upper portion. After the structure is adopted, the sliding plate is completely dragged by the inhaul cable to lift or fall, the speed is consistent with the lifting or falling speed of the bed back, the sliding plate is effectively prevented from falling off, no oppression is caused, and the pain of a patient is reduced.

The technical scheme adopted by CN203208247U is as follows: the back plate and the sliding plate are clamped on the back plate through two sides, the idler wheels are arranged between the back plate and the sliding plate, and the sliding plate is attached to the idler wheels. After the structure is adopted, the oppression feeling of the chest, the abdomen and the back of a patient, particularly the back of the patient, caused by the traditional automatic nursing bed in the process of lifting the back can be completely avoided, the pain of the patient with serious diseases and the patient with multiple body pains can be effectively relieved, the manual assistance is not needed, and the work burden of medical staff is relieved.

The device for controlling the sliding of the sliding plate disclosed by the prior art has certain defects in the actual use process, for example, in the technical scheme disclosed by CN203915290U, the pull cable and the pulley are used for traction in a matching manner, so that not only the structure is complex, but also the pull cable is easy to separate from or wind the pulley, which causes the driving failure of the sliding plate. In the technical scheme disclosed in CN203208247U, the skateboard does not have an active sliding function, and the effect of synchronous sliding of the skateboard is achieved by squeezing the back of the human body, and the degree of relief is limited in relieving the squeezing feeling brought to the human body when the skateboard is lifted. Therefore, there is a need for an improved back lifting plate adjusting device for a nursing bed, which achieves the technical purpose of better use experience.

Disclosure of Invention

In order to overcome the defects in the prior art in the using process, the invention provides the back lifting back plate adjusting device for the nursing bed, which can ensure that a sliding plate moves synchronously along with the back lifting action, effectively relieve the extrusion feeling on the back of a human body when the user carries the back, and achieve the technical purpose of better use experience.

In order to achieve the technical purpose, the invention adopts the technical scheme that: a back lifting back plate adjusting device for a nursing bed comprises a bed frame and a back plate which can be turned over up and down on the bed frame; be equipped with upset drive arrangement in the bottom of backplate, the surface of backplate is equipped with the slide, and slide both sides block just the slide can freely slide its characterized in that on the backplate: the back plate is provided with a longitudinal hollow groove, and a rack is fixedly arranged at the back of the sliding plate corresponding to the hollow groove; the bottom of the back plate is provided with a driving wheel meshed with the rack, the driving wheel is fixed on the driving shaft, the driving shaft is supported and fixed on the back plate and can freely rotate through the driving device, the driving device can enable the driving shaft to synchronously rotate in the forward and reverse directions along with the up-and-down overturning of the back plate, and the driving wheel drives the rack to move up and down to enable the sliding plate to slide up and down through the rotation of the driving shaft.

Furthermore, the back plate is connected with the sliding plate through a sliding rail, and the sliding plate can freely slide along the sliding rail.

Furthermore, the driving device comprises a pin shaft fixed on the bedstead and a track board, wherein a track groove is formed in the track board, and the pin shaft extends into the track groove; one end of the track plate is fixedly connected with the driving shaft; when the driving shaft synchronously turns along with the back plate, the end part of the track plate connected with the driving shaft synchronously rotates under the limitation of the track groove and the pin shaft so as to drive the driving shaft to rotate.

Furthermore, the track groove is a hollow groove, and the pin shaft penetrates through the track groove.

Furthermore, the track groove is a sinking groove, and the end part of the pin shaft is positioned in the track groove.

Further, the track groove is in an arc-shaped curve shape.

Further, the turnover driving device is an electric push rod.

The invention has the beneficial effects that: the structure that adopts rack and drive wheel meshing drives the slide, can guarantee the stable slip of slide, and the structure is compacter. Utilize the cooperation of orbit groove and round pin axle on the orbit board, can the backplate when overturning the tip of orbit board do synchronous rotation, utilize the rotation of orbit board tip to do synchronous positive and negative rotation with the drive wheel to guarantee that the slide can be accompanied the upset of backplate and do synchronous slip, bring better use for the bed patient and experience.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

The back lifting plate adjusting device for a nursing bed provided by the invention is described in detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1, a back lifting and back plate adjusting device for a nursing bed comprises a bed frame 1 and a back plate 2 capable of being turned over up and down on the bed frame, wherein during manufacturing, the bed plate is formed by combining a fixed plate and the back plate 2, the end part of the back plate 2 is hinged with the end part of the fixed plate through a hinge, the back plate 2 can be turned over up and down around the hinge, a turning driving device is arranged at the bottom of the back plate 2, and an electric push rod 3 is adopted to push the back plate 2 to be turned over up and down in.

As shown in fig. 1, a slide plate 4 is provided on the surface of the back plate 2, and both sides of the slide plate 4 are engaged with the back plate 2 so as to be slidable.

The above structure is consistent with the structure provided in the prior art, which has been described in detail in the prior art and will not be described herein.

The invention aims to provide a structure for controlling the sliding of a sliding plate 4, which is different from the prior art and ensures that the sliding plate 4 slides synchronously along with the overturning of a back plate 2.

As shown in fig. 1, the structure adopted by the invention is as follows: a longitudinal hollow groove 5 is arranged on the back plate 2, and a rack 6 is fixedly arranged at the back of the sliding plate corresponding to the hollow groove 5.

As shown in fig. 1, a driving wheel 7 engaged with the rack 6 is provided at the bottom of the back plate 2, the driving wheel 7 is fixed on a driving shaft 8, the driving shaft 8 is supported and fixed on the back plate and the driving shaft can rotate freely.

As can be seen from the attached figure 1 and the above description, when the back plate 2 is turned upside down, the rack 6 can be driven to move up and down by the driving wheel 7 by controlling the driving shaft 8 to rotate forward or backward synchronously, so that the sliding plate 4 can slide up and down synchronously along with the turning action of the back plate 2. The sliding plate 4 can be ensured to stably slide by the meshing drive of the driving wheel 7 and the rack 6, so that the technical problem of sliding failure of the existing sliding plate is solved.

In order to ensure that the driving wheel 7 and the rack 6 are always engaged, the back plate 2 and the sliding plate 4 can be connected by a sliding rail (not shown in the drawing), and the sliding plate 4 can freely slide along the sliding rail. A slide rail may be provided in the middle of the slide 4 to prevent the separation between the slide 4 and the back plate 2 from causing the failure of the engagement between the driving wheel 7 and the rack 6.

The device for controlling the driving shaft 8 to rotate forward and backward can be driven by a motor, but the rotation speed and the steering of the motor need to be controlled by a control system to be closely matched with the action of the electric push rod 3, so that high technical requirements are imposed on the control system, and the manufacturing cost is increased.

In this embodiment, by providing a mechanical linkage, the driving shaft 8 can make corresponding forward and backward rotation according to the up-down turning motion of the backboard 2, and the sliding plate 4 can be ensured to make corresponding sliding according to the turning degree of the backboard 2.

As shown in fig. 1, the structure is as follows: comprises a pin shaft 9 fixed on the bedstead 1 and a track board 10.

As shown in fig. 1, a track groove 11 is formed in the track plate 10, the pin shaft 9 extends into the track groove 10, and one end of the track plate 10 is fixedly connected with the driving shaft 8.

According to the structure shown in fig. 1 and described above, when the back plate 2 is turned upside down, the driving shaft 8 moves synchronously with the back plate 2, due to the existence of the track groove 11, the driving shaft 8 can drive the track plate 10 to move, and by reasonably designing the shape of the track groove 11, the track plate 10 can rotate around the pin shaft 9 under the force of the pin shaft 9, so that the end of the track plate 10 drives the driving shaft 8 to rotate.

The overturning action of the driving shaft 8 along with the back plate 2 around the hinge is a circular track, the shape of the track groove 11 is designed to be an arc-shaped curve shape, the radius of an arc is reasonably determined according to the installation positions of the driving shaft 8 and the pin shaft 9, and meanwhile, the overturning sliding distance of the sliding plate 4 along with the back plate can be adjusted by adjusting the installation positions of the driving shaft 8 and the pin shaft or the shape of the track groove 11.

During the preparation, orbit groove 11 can adopt the structure of fretwork groove or heavy groove, and when designing into the fretwork groove, round pin axle 9 passes the fretwork groove, and when being heavy groove, the tip of round pin axle 9 is located the orbit inslot portion, guarantees that round pin axle 9 and orbit groove 11 are in stable cooperation state all the time.

Claims

1. A back lifting back plate adjusting device for a nursing bed comprises a bed frame and a back plate which can be turned over up and down on the bed frame; be equipped with upset drive arrangement in the bottom of backplate, the surface of backplate is equipped with the slide, and slide both sides block just the slide can freely slide its characterized in that on the backplate: the back plate is provided with a longitudinal hollow groove, and a rack is fixedly arranged at the back of the sliding plate corresponding to the hollow groove; the bottom of the back plate is provided with a driving wheel meshed with the rack, the driving wheel is fixed on the driving shaft, the driving shaft is supported and fixed on the back plate and can freely rotate through the driving device, the driving device can enable the driving shaft to synchronously rotate in the forward and reverse directions along with the up-and-down overturning of the back plate, and the driving wheel drives the rack to move up and down to enable the sliding plate to slide up and down through the rotation of the driving shaft.

2. The back lifting back plate adjusting device for the nursing bed as claimed in claim 1, wherein: the back plate is connected with the sliding plate through a sliding rail, and the sliding plate can freely slide along the sliding rail.

3. The back lifting and back plate adjusting device for the nursing bed as claimed in claim 1 or 2, wherein: the driving device comprises a pin shaft fixed on the bedstead and a track plate, wherein a track groove is formed in the track plate, and the pin shaft extends into the track groove; one end of the track plate is fixedly connected with the driving shaft; when the driving shaft synchronously turns along with the back plate, the end part of the track plate connected with the driving shaft synchronously rotates under the limitation of the track groove and the pin shaft so as to drive the driving shaft to rotate.

4. The back lifting back plate adjusting device for the nursing bed as claimed in claim 3, wherein: the track groove is a hollow groove, and the pin shaft penetrates through the track groove.

5. The back lifting back plate adjusting device for the nursing bed as claimed in claim 3, wherein: the track groove is a sinking groove, and the end part of the pin shaft is positioned in the track groove.

6. The back lifting back plate adjusting device for the nursing bed as claimed in claim 3, wherein: the track groove is in an arc-shaped curve shape.

7. The back lifting back plate adjusting device for the nursing bed as claimed in claim 1, wherein: the overturning driving device is an electric push rod.