CN213373221U - Driving device on standing bed - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to a driving device on a standing bed, which comprises a bed head plate frame, a bed middle plate frame, a bed tail plate frame and two driving mechanisms, wherein each driving mechanism is connected with a supporting arm, the driving mechanism drives one end of the supporting arm to move along a straight line, and the included angle of the straight line moving path of the two supporting arms is an acute angle; one support arm is rotationally connected with the bed middle plate frame, and the other support arm is rotationally connected with the bed tail plate frame; bed grillage and tailstock grillage rotate to be connected, and bed grillage is kept away from the one end of tailstock grillage and is rotated and connect head of a bed grillage in the bed grillage, and equal fixedly connected with welt on head of a bed grillage and the tailstock grillage rotates between two welts and is connected with the linking arm, and the linking arm is parallel with bed grillage, and the welt on the head of a bed grillage is parallel with the welt on the tailstock grillage. This scheme is used for solving among the prior art for realizing sitting of standing up the bed, stand and lie the function and adopt the problem with high costs, easy wearing and tearing and the poor stability that a plurality of electric putter caused.

Description

Driving device on standing bed

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a driving device on a standing bed.

Background

An electric standing bed for treating the paralysis patient (including paraplegia, hemiparalysis and quadriplegia) features that the patient lies in bed for a long time due to physical weakness, active hypokinesia of paralyzed limbs and abnormal muscle tension, resulting in the complications of muscular atrophy, stiff joint and hypotension, the patient with lower limb dysfunction is standing for rehabilitation, the patient with internal and external legs is ankle joint for rehabilitation, and the patient with nerve injury to spine is standing for rehabilitation.

The standing bed can enable a patient to keep sitting, standing (including inclined standing with an angle) or lying postures through the position change of the headboard, the bed middle board and the bed tail board, can help the patient to reduce various complications through training in different postures, maintains the stress load of the spine, pelvis and lower limbs, and is an effective means for promoting the functional recovery of the patient; can improve the blood circulation of patients with lower limb dysfunction, enhance the strength of lower limb muscles, prevent muscular atrophy, pressure sores caused by long-term lying in bed and the like, simultaneously has the function of stimulating the nervous system of the patients, recovers the control capability of the nervous system on the muscles, and lays a good foundation for the subsequent gait training.

Many standing beds in the prior art only have a lying posture or a standing posture, and many standing beds can achieve the functions of sitting, lying and standing, for example, an electric standing multi-section rehabilitation training bed with chinese patent publication No. CN206007524U has the three functions, but the scheme disclosed in the patent has the following problems:

first, the drive arrangement that needs to be used to realize sitting and standing, standing and lie the gesture has included three electric putter, and electric putter is in large quantity, and is with high costs.

Secondly, only one end of each of two electric push rods is fixed, the other electric push rod is directly arranged on the bed board which can change the posture, and push rods of the electric push rods are directly connected with the corresponding bed board (the head board, the middle board and the tail board are collectively called as the bed board); and the standing bed still is equipped with the shaking table that vibrates to the patient sole generally on the bed board, through the vibration of shaking table, be favorable to the patient to relax more on the one hand, on the other hand, also come amazing patient's limbs through the vibration of shaking table to in the rehabilitation training better, nevertheless also because of the existence of shaking table vibration, make the bed board produce certain vibration, the bed board vibrates the in-process and drives the catch bar vibration, the catch bar is because of receiving the easy wearing and tearing of external force vibration and damage even.

Third, because of electric putter only supports the bed board through the pushing rod, the holding power is not good, leads to the standing bed after starting the shaking table, and the severity of whole bed board shake has reduced patient's recovered experience and has felt.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is providing the drive arrangement on the standing bed to solve among the prior art for realizing the sitting of standing bed, stand and lie the function and adopt the problem with high costs and easy wearing and tearing that a plurality of electric putter caused.

In order to achieve the above object, the basic scheme of the present invention is as follows:

the driving device on the standing bed comprises a bed head plate frame, a bed middle plate frame, a bed tail plate frame and two driving mechanisms, wherein the driving mechanisms are fixedly connected to a bed frame of the standing bed; one support arm is rotationally connected with the bed middle plate frame, and the other support arm is rotationally connected with the bed tail plate frame; bed grillage and tailstock grillage rotate to be connected, and the one end that bed tailstock grillage was kept away from to bed grillage rotates and connects head of a bed grillage, and equal fixedly connected with welt on head of a bed grillage and the tailstock grillage rotates between the welt on the head of a bed grillage and the welt on the tailstock grillage and is connected with the linking arm, and the linking arm is parallel with the bed grillage, and the welt on the head of a bed grillage is parallel with the welt on the tailstock.

Compare the beneficial effect in prior art:

when this scheme of adoption, when the bed grillage is in the horizontality, because of being connected through welt and linking arm between head of a bed grillage and the tailstock grillage, and the linking arm is parallel with the bed grillage, there is a parallel four-bar linkage between head of a bed grillage and the tailstock grillage in other words, promote the removal of support arm through actuating mechanism and drive tailstock grillage and head of a bed grillage be in the state of erectting or reach the horizontally state after that, under the state of erectting, whole standing-up bed demonstrates the state of sitting up (also the position of sitting), and under the horizontality, whole standing-up bed is in the position of lying (also the position of. When the standing bed is switched from a sitting posture to a standing posture (namely switched to a standing posture), only the driving mechanism needs to be started, so that the bed middle plate frame is erected by the supporting arm, and after the bed middle plate frame is erected, the bed head plate frame is also in the standing state under the parallel four-bar mechanism formed by the connecting arm, the lining plate and the bed middle plate frame, so that the purpose of keeping the standing posture of the whole standing bed is achieved.

In this scheme, realized sitting posture, standing position and three kinds of postures of lying position through the cooperation of two actuating mechanism and support arm, welt, head of a bed grillage, grillage and tailstock grillage in the bed, compare in prior art, reduced actuating mechanism's quantity, be favorable to reduce cost.

The positions of the two driving mechanisms on the standing bed are always kept unchanged, so that the driving mechanisms are more stably installed on the standing bed, and the vibration generated by the vibrating table on the standing bed cannot directly act on the driving mechanisms, so that the problem that the parts of the driving mechanisms are loosened or displaced due to the vibration to cause the whole driving mechanisms to be abraded or damaged is solved.

Besides, in the scheme, the bed head plate frame, the bed middle plate frame and the bed tail plate frame are connected through rotation, the liner plates and the connecting arms are matched to form a movable whole, linkage is stronger, the purpose of saving energy is achieved, the action effect of the whole standing bed is more coordinated and consistent, and the experience feeling of the standing bed is further improved.

Further, the lining plate connected with the bed tail plate frame and the bed tail plate frame are integrally formed.

Has the advantages that: the integrated structure intensity is higher.

Furthermore, the included angle range of the bed tail plate frame and the bed middle plate frame is 95-180 degrees.

Has the advantages that: when the included angle between the bed tail plate frame and the bed middle plate frame is 180 degrees, the standing bed is in a lying posture; when the bed tail plate frame and the bed middle plate frame keep an included angle of 95 degrees, the standing bed has two states, namely a sitting state and a standing state, and in the sitting state, the legs of a patient can be parallel to the bed tail plate frame in a comfortable state, so that the comfort of the patient in the sitting state is ensured; and in the standing state, the standing bed is not in the vertical state, so that the problem that the legs of the patient are compressed too much to be beneficial to rehabilitation in the vertical state is solved.

Further, the driving mechanism is positioned below the bed middle plate frame.

Has the advantages that: the standing bed is positioned below the bed middle plate frame, and the space below the bed middle plate frame can be utilized, so that the structural arrangement of the driving device is more compact, and the stable installation of the driving mechanism is also facilitated.

Further, actuating mechanism is the sharp module, and the sharp module includes driver, guide rail and slider, and the driver drives the slider along guide rail axial displacement, and the support arm rotates to be connected on the slider.

Has the advantages that: when the linear module operates, the sliding block moves stably, so that the stability of the whole driving device in changing different postures of the standing bed is improved; and the slider of sharp module and the cooperation of support arm also make the support arm higher to tailstock grillage and the support intensity of grillage in the bed.

Further, the linear module further comprises a screw rod and a potentiometer, the driver drives the screw rod to rotate, the sliding block axially slides along the screw rod, and the potentiometer is used for recording the rotation condition of the screw rod.

Has the advantages that: through the monitoring record of the turned angle and the number of turns of potentiometre to grillage and tailstock grillage in the release support arm drive bed attitude change condition, be convenient for compare the affirmation to the gesture of predetermineeing of standing up bed and actual gesture, ensure the accuracy of standing up bed motion.

Furthermore, one end of the screw rod is fixedly connected with a first gear, the first gear and the screw rod are located on two sides of the driver, a second gear meshed with the first gear is connected to a shell of the driver in a rotating mode, the potentiometer is installed on the rotating center of the second gear, and an elastic pusher is connected to the shell of the driver and used for giving a force which is close to the first gear to the rotating center of the second gear.

Has the advantages that: through the monitoring record of the angle and the number of turns of the potentiometer to the gear II, the moving position of the sliding block on the linear module is calculated, the monitoring function of the potentiometer is achieved, and the potentiometer is installed on the gear II, so that the installation and the maintenance are more convenient.

In addition, in the scheme, the elastic pusher gives a force to the gear two-way gear one to approach, so that long meshing between the gear two and the gear one is ensured, and the problem that the gear two cannot be effectively meshed with the gear one after the standing bed is vibrated is solved.

Furthermore, the two ends of the guide rail are both connected with a supporting seat which is fixedly connected on the bedstead of the standing bed.

Has the advantages that: through the setting of supporting seat for the both ends of sharp module all form with the unmovable bedstead of rising up the bed and be connected, compare in prior art as the unsettled condition of one end that drive arrangement's electric putter exists, the sharp module both ends of this scheme have all been supported, have increased the operating stability of sharp module, also make the support arm more stable to the support of grillage and tailstock grillage in the bed.

Furthermore, a connecting frame is fixedly connected between the supporting seats at the two ends of the guide rail.

Has the advantages that: the supporting seat is connected through the connecting frame, and the stability of the linear module on the bed frame is further enhanced.

Further, a limit switch is fixedly connected to the connecting frame and electrically connected with the driver, a switch board for triggering the limit switch is fixedly connected to the sliding block, and the driver stops when the limit switch is triggered.

Has the advantages that: when the slider removes, trigger limit switch through the switch board for when the slider removed the limit switch position, sharp module in time stops to start, and the removal stroke of slider is too big in avoiding sharp module, makes the problem that the posture of standing up is not conform to the training demand to the patient.

Drawings

Fig. 1 is a three-dimensional view of the embodiment of the present invention installed on a standing bed;

fig. 2 is a three-dimensional view of two drive mechanisms in an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a front view of the embodiment of the present invention in a sitting position;

FIG. 5 is a front view of the embodiment of the present invention for maintaining a lying position;

fig. 6 is a front view of the embodiment of the present invention for maintaining a standing posture.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a linear module 1, a driver 11, a screw rod 12, a guide rail 13, a sliding block 14, a mounting seat 15, a supporting seat 16, a connecting frame 17, a limit switch 18, a switch plate 19, a potentiometer 2, a supporting arm 3, a bed head plate frame 41, a bed middle plate frame 42, a bed tail plate frame 43, a bed frame 5, a first gear 21, a second gear 22, a potential frame 23, a mounting column 24, a connecting plate 25, a spring 26, a supporting rod 27, a lining plate 6 and a connecting arm 7.

Examples

Embodiment basically as shown in fig. 1 to 6, the driving device for the standing up bed comprises a bed head plate frame 41, a bed middle plate frame 42, a bed tail plate frame 43 and two driving mechanisms, wherein the bed middle plate frame 42 is located between the bed head plate frame 41 and the bed tail plate frame 43, one end of the bed middle plate frame 42 is rotatably connected with the bed head plate frame 41, and the bed middle plate frame 42 and the bed tail plate frame 43 are simultaneously rotatably connected with the bed frame 5 of the standing up bed (in this embodiment, the bed middle plate frame 42 and the bed tail plate frame 43 are coaxially arranged around the rotation center of the bed frame 5, which is equivalent to that the other end of the bed middle plate frame 42 is rotatably connected with the bed tail plate; the drive mechanism is located below the bed plate frame 42.

The two driving mechanisms are fixedly connected to a bed frame 5 of the standing bed, the two driving mechanisms are identical in structure, each driving mechanism is connected with one supporting arm 3, the driving mechanism drives one end of each supporting arm 3 to move linearly, and the included angle of the linear moving paths of the two supporting arms 3 is an acute angle; one of the support arms 3 is rotatably connected with the bed middle plate frame 42 (specifically, the bottom surface of the bed middle plate frame 42 is fixedly connected with the mounting seat 15 through a screw, and the mounting seat 15 is rotatably connected with the support arm 3), and the other support arm 3 is rotatably connected with the bed tail plate frame 43 (specifically, the bed tail plate frame 43 is also fixedly connected with the mounting seat 15 through a screw, and the mounting seat 15 is rotatably connected with the support arm 3); the bed head plate frame 41 and the bed tail plate frame 43 are both fixedly connected with lining plates 6, wherein the lining plates 6 connected on the bed tail plate frame 43 and the bed tail plate frame 43 are integrally formed, a connecting arm 7 is rotatably connected between the lining plate 6 on the bed head plate frame 41 and the lining plate 6 on the bed tail plate frame 43, the connecting arm 7 is parallel to the bed middle plate frame 42, the lining plate 6 on the bed head plate frame 41 is parallel to the lining plate 6 on the bed tail plate frame 43, and the lining plate 6, the connecting arm 7 and the bed middle plate frame 42 form a parallel four-bar mechanism; the included angle between the bed tail plate frame 43 and the bed middle plate frame 42 ranges from 95 degrees to 180 degrees.

The two driving mechanisms comprise a linear module 1 and a potentiometer 2, the potentiometer 2 adopts a multi-coil winding potentiometer, the linear module 1 comprises a driver 11, a screw rod 12, a guide rail 13 and a sliding block 14, the screw rod 12 adopts a ball screw 12, the driver 11 adopts a servo motor, the driver 11 drives the screw rod 12 to rotate, the sliding block 14 is simultaneously connected onto the guide rail 13 and the screw rod 12 in a sliding manner, and the sliding block 14 moves axially along the guide rail 13 and the screw rod 12 when the screw rod 12 rotates; one end of the supporting arm 3 is rotatably connected to the sliding block 14, after the driver 11 is started, the sliding block 14 drives the supporting arm 3 to move together, and in the moving process, the supporting arm 3 pushes the bed tail plate frame 43 or the bed middle plate frame 42 to rotate around the bed frame 5.

The two ends of the guide rail 13 are both connected with a supporting seat 16, the guide rail 13 is rotatably connected to the supporting seats 16, the supporting seats 16 are fixed on the bed frame 5 of the standing bed through screws, a connecting frame 17 is connected between the supporting seats 16 at the two ends of the guide rail 13 through screws, and the connecting frame 17 is positioned above the guide rail 13; the connecting frame 17 is fixedly connected with a limit switch 18 through a screw, the limit switch 18 is electrically connected with the driver 11, the sliding block 14 is fixedly connected with a switch plate 19 which triggers the limit switch 18 to be switched on through the screw, the limit switch 18 adopts a travel switch, and when the switch plate 19 moves along with the sliding block 14 and presses the travel switch, the driver 11 of the linear module 1 stops.

One end of the screw rod 12 is fixedly connected with a first gear 21, the first gear 21 and the screw rod 12 are positioned at two sides of the driver 11, a second gear 22 meshed with the first gear 21 is rotatably connected to the shell of the driver 11, and the potentiometer 2 is fixedly arranged on the rotating center of the second gear 22; the potentiometer 2 can acquire the rotation condition of the second gear 22, and the rotation number and the angle of the screw rod 12 can be obtained through the rotation condition of the second gear 22 acquired by the potentiometer 2.

An elastic pusher is connected to the shell of the driver 11, the elastic pusher comprises a potential frame 23, a connecting plate 25 and a spring 26, the potential frame 23 is fixed to the shell of the driver 11 through screws, an installation column 24 is integrally formed on the potential frame 23, the connecting plate 25 is rotatably connected to the potentiometer 2, the spring 26 is connected to the installation column 24, one end, far away from the installation column 24, of the spring 26 is hung on an opening formed in the connecting plate 25, the installation column 24 and the potentiometer 2 are located on two sides of a first gear 21, in order to ensure the stability of the connecting plate 25, a supporting rod 27 is further fixed to the potential frame 23, one end of the connecting plate 25 is rotatably connected to the potentiometer 2, and the other end of the connecting plate 25 is rotatably connected to the supporting rod 27; the connecting plate 25 is pulled through the spring 26, so that the potentiometer 2 which is rotatably connected with the connecting plate 25 has a force which is close to the first gear 21, and the potentiometer 2 is coaxial with the second gear 22, namely, the second gear 22 has a force which is close to the first gear 21, long meshing of the second gear 22 and the first gear 21 is ensured, and the problem that the second gear 22 cannot be effectively meshed with the first gear 21 after the standing bed is vibrated is solved.

By adopting the embodiment, three states of sitting posture, standing posture and lying posture can be achieved, and the specific analysis is as follows:

first, sitting and lying postures

The bed middle plate frame 42 is in a horizontal state, the bed tail plate frame 43 is in a vertical state under the driving of the driving mechanism, and the bed head plate frame 41 and the bed tail plate frame 43 are connected through the lining plate 6 and the connecting arm 7, so that the bed head plate frame 41 can be always parallel to the bed tail plate frame 43 as the lining plate 6, the connecting arm 7 and the bed head plate frame 41 form a parallel four-bar mechanism; when the bed grillage 42 is in the horizontal state, the driving mechanism pushes the supporting arm 3 to make the tailstock 43 in the vertical state, and at the same time, the bed grillage 41 is also in the vertical state, namely, the sitting posture shown in fig. 4 is achieved; the driving mechanism pushing the supporting arm 3 can also make the footboard frame 43 in a horizontal state, in which state the footboard frame 41 is also in a horizontal state, i.e. in a lying position as shown in fig. 5.

Second, standing posture

When the standing bed is switched from a sitting posture to a standing posture, only the driving mechanism needs to be started, so that the bed middle plate frame 42 can be erected by the supporting arm 3, and after the bed middle plate frame 42 is erected, the bed head plate frame 41 is also in a standing state under the parallel four-bar mechanism formed by the connecting arm 7, the lining plate 6 and the bed middle plate frame 42, so that the purpose of keeping the standing posture of the whole standing bed is achieved.

In addition, the standing posture in this embodiment is not limited to the maximum standing posture shown in fig. 6, and since the standing posture and the lying posture are both in a state where the bed head plate frame 41, the bed middle plate frame 42 and the bed tail plate frame 43 are parallel to each other, the standing bed can be gradually adjusted from the horizontal lying posture (also shown in fig. 5) to the state shown in the maximum standing posture (also shown in fig. 6) through the cooperation of the two linear modules 1, so as to meet the requirement of gradual rehabilitation training for the patient.

In this embodiment, three postures of sitting posture, standing posture and lying posture are realized through the cooperation of two drive mechanisms and support arm 3, welt 6, head of a bed grillage 41, bed middle grillage 42 and tailstock grillage 43, compare in prior art, have reduced drive mechanism's quantity, are favorable to reduce cost.

The positions of the two driving mechanisms on the standing bed are always kept unchanged, so that the driving mechanisms are more stably installed on the standing bed, and the vibration generated by the vibrating table on the standing bed cannot directly act on the driving mechanisms, so that the problem that the whole driving mechanism is unstable in structure and is abraded or damaged due to the fact that parts of the driving mechanisms are loosened or displaced due to the vibration is solved.

In this embodiment, the bed head plate frame 41, the bed middle plate frame 42 and the bed tail plate frame 43 are connected through rotation, and the matching of the lining plate 6 and the connecting arm 7 forms a movable whole, so that the linkage is stronger, the purpose of saving energy is achieved, the action effect of the whole standing bed is more coordinated and consistent, and the experience of the standing bed is further improved.

The quantity of every support arm 3 that actuating mechanism drove in this embodiment all has two, support arm 3 through becoming two is to the bed in grillage 42 and tailstock grillage 43's support and the higher straight line module 1 of whole stability as power in the standing bed, make whole drive arrangement to head of a bed grillage 41, bed in grillage 42 and tailstock grillage 43's support intensity is higher, and then make the holistic anti vibration performance of standing bed improve (also reduced the shake range of standing bed), be favorable to improving the experience sense of standing bed when carrying out the rehabilitation training, also be favorable to improving the life of standing bed simultaneously.

Besides, in this embodiment, when the driving mechanism drives the standing bed to realize the posture change, the moving stroke of the sliding block 14 can be ensured through the limit switch 18, so that the moving stroke of the sliding block 14 in the linear module 1 is avoided to be too large, and the posture of the standing bed is not in line with the problem of the training requirement of the patient.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. Drive arrangement on the bed of standing up, grillage, tailstock grillage and two actuating mechanism in head of a bed grillage, bed, actuating mechanism fixed connection is on the bedstead of bed of standing up, and bed middle grillage rotates to be connected on the bedstead, its characterized in that: each driving mechanism is connected with a supporting arm, the driving mechanism drives one end of each supporting arm to move along a straight line, and the included angle of the straight line moving paths of the two supporting arms is an acute angle; one support arm is rotationally connected with the bed middle plate frame, and the other support arm is rotationally connected with the bed tail plate frame; bed grillage and tailstock grillage rotate to be connected, and the one end that bed tailstock grillage was kept away from to bed grillage rotates and connects head of a bed grillage, and equal fixedly connected with welt on head of a bed grillage and the tailstock grillage rotates between the welt on the head of a bed grillage and the welt on the tailstock grillage and is connected with the linking arm, and the linking arm is parallel with the bed grillage, and the welt on the head of a bed grillage is parallel with the welt on the tailstock.

2. The drive device on a rising bed according to claim 1, characterized in that: the liner plate connected with the bed tail plate frame and the bed tail plate frame are integrally formed.

3. The drive device on a rising bed according to claim 1, characterized in that: the included angle between the bed tail plate frame and the bed middle plate frame is 95-180 degrees.

4. The drive device on a rising bed according to claim 1, characterized in that: the driving mechanism is positioned below the bed middle plate frame.

5. The drive device on a rising bed according to claim 1, characterized in that: the driving mechanism is a linear module, the linear module comprises a driver, a guide rail and a sliding block, the driver drives the sliding block to move along the axial direction of the guide rail, and the supporting arm is rotatably connected to the sliding block.

6. The drive device on the rising bed according to claim 5, characterized in that: the linear module further comprises a screw rod and a potentiometer, the driver drives the screw rod to rotate, the sliding block axially slides along the screw rod, and the potentiometer is used for recording the rotation condition of the screw rod.

7. The drive device on the rising bed according to claim 6, characterized in that: one end of the screw rod is fixedly connected with a first gear, the first gear and the screw rod are located on two sides of the driver, a second gear meshed with the first gear is connected to a shell of the driver in a rotating mode, the potentiometer is installed on the rotating center of the second gear, and an elastic pusher is connected to the shell of the driver and used for giving a force, approaching the rotating center of the second gear, to the first gear.

8. The drive device on the rising bed according to claim 5, characterized in that: the two ends of the guide rail are both connected with a supporting seat, and the supporting seat is fixedly connected to a bedstead of the standing bed.

9. The drive device on the rising bed according to claim 8, characterized in that: and a connecting frame is fixedly connected between the supporting seats at the two ends of the guide rail.

10. The drive device on a rising bed according to claim 9, characterized in that: the connecting frame is fixedly connected with a limit switch, the limit switch is electrically connected with the driver, the sliding block is fixedly connected with a switch board for triggering the limit switch, and the driver stops when the limit switch is triggered.

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