TWM619064U - Electric bed automatic body turning mechanism - Google Patents

Abstract

This creation is related to an automatic turning mechanism of an electric bed. A bed body is set on a bed frame, so that the actuating shaft of the electric cylinder fixed on the bed frame is connected to the tie rod, and the telescopic stroke of the actuating shaft is the bed frame Guided by the upper guide groove, the other end of the tie rod is connected to the middle position of the pendulum rod, the upper end of the pendulum rod is connected to the bed frame, and the lower end of the pendulum rod is provided with a shaft rod. The upper end of the part is assembled on the bed; according to this, when the actuating shaft of the electric cylinder is extended or retracted, the linkage between the tie rod, the swing rod, the shaft rod, and the arc-shaped slot of the turning part can be used to make The bed is tilted to the right or left to achieve the effect of automatically turning over the patient lying on the bed.

Description

Automatic turning mechanism of electric bed

This creation is related to an automatic turning mechanism for an electric bed, especially a mechanism that involves automatically turning over a patient who is lying on an electric bed and cannot turn over.

Bed sores (or pressure sores) are mainly caused by obstruction of blood flow caused by pressure for a long time, resulting in ulcers or necrosis, so the most common location is on the skin where the bones protrude, such as the head, shoulders, elbows, buttocks, Caudal vertebrae, heels, etc. Therefore, patients who lie down for a long time are prone to bedsores, and bedsores deteriorate very quickly. Therefore, you must always pay attention when taking care of patients who sleep for a long time. The higher the frequency of moving the patient, the more the occurrence or deterioration of bedsores can be avoided; however, the disease The patient cannot turn over on his own and must rely on the assistance of a doctor or nurse. Therefore, a lot of manpower is required. In addition, when the doctor or nurse assists the patient to turn over, the patient should lie down and cross the patient’s hands. Place the patient on the chest with the knees bent at 90 degrees. Place one hand on the outside of the patient’s hip and the other hand behind the patient’s scapula. Use both hands to turn the patient to the side where the doctor or nurse is standing. Or when the caregiver assists the patient to turn over, if they do not pay attention to their own posture and strength, they may also cause their own muscle strain.

Therefore, in order to reduce the manpower and physical burden of medical and nursing staff, related industries have developed a variety of electric beds that can automatically assist patients to turn over. E.g:

Taiwan Patent No. TWI690314B discloses that the bed turning device is combined with a backing paper through a scrolling shaft assembly so that the backing paper can be rolled by a motor to easily turn a patient over.

Taiwan Patent No. TWM553187U discloses a pneumatic roll-over mattress structure. The power cord provides electricity to the air pressure controller, and the air pressure controller controls the air in and out. When the air enters through the air inlet, it is driven by the air tube. The pneumatic actuator pushes the bed frame to assist the user to turn the body. When the bed frame needs to be restored, the air pressure controller will discharge the air from the vent, and the bed frame can be restored to its original state.

Taiwan Patent No. TWI552742B provides a hospital bed capable of turning over. Its four-link structure is connected to the drive rod through a pulley set, and the four-link structure rotates according to the drive rod. When the input rod rotates to a first angle When the four-bar linkage structure rises from a first position to a second position, the patient can be turned over smoothly.

The Chinese patent No. CN213157214U relates to a turning bed, which drives the bed sheet to continuously slide by starting the motor and the air cylinder, prompting the patient to turn over, and at the same time the sliding bed board moves upwards, further enabling the patient to turn more quickly, enabling the patient to easily turn or sit up.

The Chinese Patent No. CN212522254U relates to a turning element for nursing beds. It uses two gas spring push rods and push rod motors to turn the functional bed plate hinged together on the bed frame to help patients quickly turn over.

Today, this creator has developed this creation in view of the importance of a convenient and easy-to-use automatic turning mechanism for patients and medical staff or nursing staff.

The main purpose of this creation is to provide an automatic turning mechanism for an electric bed. Through the protruding and retracting of the actuating shaft of the electric cylinder, the bed is linked to tilt to the left and to the right, and then lie down on the bed. The above patients turn over to prevent pressure ulcers and reduce the burden on medical staff.

The automatic turning mechanism of the electric bed in this creation is realized by the following technologies:

An automatic turning mechanism for an electric bed, including:

A bed frame, wherein the bed frame pivots into a bed body with its upper and lower ends, and a guide groove is provided along the axial direction of the frame body at the frame body at the upper end or the lower end of the bed frame;

An electric cylinder is fixed to the frame, the electric cylinder has an actuating shaft, the actuating shaft protrudes or retracts along the axial direction of the frame, the end shaft of the actuating shaft is provided with a guide wheel, so The guide wheel slides and shifts in the guide groove;

A pull rod, the pull rod includes opposite first and second ends, and the first end of the pull rod is axially connected with the guide wheel;

A swing rod, the swing rod includes opposite first and second ends, the first end of the swing rod is axially arranged on the frame of the bed frame, and the second end of the pull rod is axially connected to the In the middle section between the first end and the second end of the pendulum rod, the second end of the pendulum rod is provided with a shaft rod;

The two turning parts are arc-shaped and have opposite first and second ends. Correspondingly, the second end of the second turn-over member is provided with an arc-shaped through slot arranged along the arc shape of the turn-over member, and the arc-shaped through slot of the second turn-over member is the shaft of the swing lever Worn by

The protruding or retraction of the actuating shaft of the electric cylinder links the guide wheel on the pull rod to move in the guide groove from a first position to a second position, or from the first position to a third position , And therefore pull the pendulum rod, so that the shaft rod assembled at the second end of the pendulum rod moves to the right-inclined position in the lying position of the arc-shaped slot of one of the turning parts, or the shaft The rod is moved to the left-inclined position in the flat position of the arc-shaped slot of the second turning member, and then the bed is linked to the right or left to automatically turn the patient over.

Advantages of this creation:

The automatic turning mechanism of the electric bed in this creation is activated by starting the electric cylinder, and the actuation shaft of the electric cylinder executes the protruding or retracting movement, and the guide wheel on the tie rod is linked to make the guide wheel move from the first position in the guide groove Move to the second position, or move from the first position in the guide groove to the third position, and therefore pull the pendulum rod, so that the shaft set at the second end of the pendulum rod is in the arc-shaped groove of one of the turning parts The horizontal position moves to the right inclined position, or the shaft moves to the left inclined position in the horizontal position of the arc-shaped slot of the two turning parts, and then the bed is tilted to the right or left to automatically move the patient to the right or left. The purpose of turning over can effectively alleviate the problem of manpower demand for turning over patients by manpower, and avoid problems such as muscle strain caused by medical staff or nursing staff in the process of turning over patients.

In order to have a more complete and clear disclosure of the technical content, the new purpose and the effect achieved in this creation, I will explain them in detail below, and please refer to the disclosed diagrams and drawing numbers together:

Please refer to the first picture to the third picture.

The automatic turning mechanism A of this creation is set on the upper end of the bed frame 1 of the electric bed. The automatic turning mechanism A includes a bed frame 1, a bed body 2, an electric cylinder 3, a pull rod 4, and a swing rod 5. , A left turning part 6, a right turning part 7, of which:

The bed frame 1, a bed body 2 is pivoted at its upper and lower ends, and a guide groove 12 is provided along the axial direction of the frame 11 at the frame 11 at the upper or lower end of the bed frame 1;

The electric cylinder 3 is fixed to the frame 11 at the upper end of the bed frame 1. The electric cylinder 3 has an actuating shaft 31. The actuating shaft 31 protrudes or retracts along the axial direction of the frame 11. The end shaft is provided with a guide wheel 32, which makes the guide wheel 32 slide and displace in the guide groove 12. When the guide wheel 32 is located in the middle of the guide groove 12, the bed body 2 is in a flat and non-inclined state;

The pull rod 4 includes a first end 41 and a second end 42 opposite to each other, and the first end 41 of the pull rod 4 is axially connected to the guide wheel 32;

The pendulum rod 5 includes a first end 51 and a second end 52 opposite to each other. In the middle section between the first end 51 and the second end 52 of the rod 5, the second end of the pendulum rod 5 is axially provided with a shaft 53;

The left turning part 6 (please refer to the fourth figure together) is arc-shaped and has a first end 61 and a second end 62 opposite to each other. The first end 61 of the left turning part 6 is set on the side bar of the bed 2 21, the second end 62 of the left turn-over member 6 has an arc-shaped through slot 63 arranged along the arc shape of the left turn-over member 6 itself, and the arc-shaped through slot 63 is adjacent to the end of the second end 62 for making The left inclined position 631 where the bed body 2 is inclined to the left, the end of the arc-shaped through groove 63 away from the second end 62 is the lying position 632 where the bed body 2 is lying flat, and the arc-shaped through groove 63 of the left turn-over member 6 is The shaft 53 of the pendulum rod 5 passes through;

The right turning part 7 (please refer to the fourth figure together) is arc-shaped and has a first end 71 and a second end 72 opposite to each other. The first end 71 of the right turning part 7 is assembled on the side of the bed 2 The right end of the rod 21 makes the left turn-over member 6 and the right turn-over member 7 have a correspondingly established shape, and the second end 72 of the right turn-over member 7 has an arc-shaped through slot 73 arranged along the arc shape of the right-turn-over member 7 itself, One end of the arc-shaped through groove 73 adjacent to the second end 72 is a right inclined position 731 for tilting the bed 2 to the right, and an end of the arc-shaped through groove 73 away from the second end 72 is a lying position 732 for the bed 2 to lie flat. , The arc-shaped piercing groove 73 of the right turning member 7 is penetrated by the shaft 53 of the swing lever 5.

According to this, the actuating shaft 31 of the ordinary electric cylinder 3 is in the middle section of the total protruding stroke (as shown in the fifth figure). At this time, the guide wheel 32 on the first end 41 of the pull rod 4 is just in the guide groove 12 In the middle section (that is, the first position), the pendulum rod 5 is vertical, and the shaft 53 on the second end 52 of the pendulum rod 5 is located in the lying position 632 of the arc-shaped slot 63 of the left turning member 6 and the arc of the right turning member 7 Pierce the flat position 732 of the slot 73.

When the actuating shaft 31 of the electric cylinder 3 protrudes to the longest position (as shown in the sixth figure), the guide wheel 32 on the actuating shaft 31 is moved in a direction away from the guide groove 12 of the electric cylinder 3 (that is, the second position) , And drive the pull rod 4, so that the pull rod 4 swings to the left in conjunction with the pendulum rod 5. At this time, the shaft 53 on the second end 52 of the pendulum rod 5 will be in the flat position 732 of the arc through the groove 73 of the right turning member 7 Move to the right inclined position 731, and at the same time, the shaft 53 will be against the flat position 632 of the arc-shaped slot 63 of the left turning part 6, so when the shaft 53 is moved and pushed to the right inclined position 731, it can The bed 2 is inclined to the right along the arc of the arc-shaped through slot 73 of the right turning member 7.

When the actuating shaft 31 of the electric cylinder 3 extends from the longest position to the retracted position (that is, the third position) through the middle section (as shown in the seventh figure), the guide wheel 32 on the actuating shaft 31 is moved toward The guide groove 12 is adjacent to the direction of the electric cylinder 3 and drives the pull rod 4 to make the pull rod 4 swing to the right in conjunction with the pendulum rod 5. The flat position 632 of the arc-shaped piercing groove 63 moves to the left inclined position 631, and the shaft 53 will be on top of the flat position 732 of the arc-shaped piercing groove 73 of the right turning part 7, so the shaft 53 is moved and pushed to In the state of the left-inclined position 631, the bed body 2 can be inclined to the left along the arc of the arc-shaped through slot 63 of the left turn-over member 6.

The automatic turning mechanism A of this creation can be set at the upper or lower end or the upper and lower ends of the bed frame 1 of the electric bed, regardless of whether the automatic turning mechanism A is set at the upper or lower end of the bed frame 1 of the electric bed or At the upper and lower ends, the structure of the automatic turning mechanism A is the same, and it is only the difference in the position of the bed frame. The drawing and implementation of this creation only use the automatic turning mechanism A to be set on the bed frame of the electric bed. The upper end of 1 serves as an illustration.

The above are only partial examples of this creation, and are not intended to limit this creation. Any modification based on the creative spirit and characteristics of this creation should also be included in the scope of this patent.

In summary, this creative embodiment can indeed achieve the expected use effect, and the specific technical means disclosed by it have not been seen in similar products, nor have they been disclosed before the application. It is in full compliance with the patent law. Regulations and requirements, Yan submits an application for a new patent in accordance with the law, and asks for favors for examination and grants a patent, which is really convenient.

A: Automatic turning mechanism

1: bed frame

11: Frame

12: Guide groove

2: bed

21: Sidebar

3: Electric cylinder

31: Actuating shaft

32: guide wheel

4: Tie rod

41: first end

42: second end

5: Swing rod

51: first end

52: second end

53: Axle

6: Left turn part

61: first end

62: second end

63: curved slot

632: flat position

631: Left tilt position

7: Turn right part

71: first end

72: second end

73: Curved slot

731: right tilt position

732: flat position

Figure 1: The three-dimensional schematic diagram of the automatic turning mechanism of this creation installed on an electric bed

Figure 2: The three-dimensional view of the automatic turning mechanism in this creation

Figure 3: Another three-dimensional view of the automatic turning mechanism of this creation

Figure 4: A three-dimensional view of the left and right turning parts in the automatic turning mechanism of this creation

Figure 5: Schematic diagram of the automatic turning mechanism in this creation to make the bed in a flat state

Figure 6: A schematic diagram of the automatic turning mechanism of this creation when the bed is tilted to the right

Figure 7: A schematic diagram of the automatic turning mechanism of this creation when the bed is tilted to the left

1: bed frame

11: Frame

12: Guide groove

3: Electric cylinder

31: Actuating shaft

32: guide wheel

4: Tie rod

41: first end

42: second end

5: Swing rod

52: second end

6: Left turn part

63: curved slot

7: Turn right part

73: Curved slot

Claims (1)

An automatic turning mechanism for an electric bed, including: A bed frame, wherein the bed frame pivots into a bed body with its upper and lower ends, and a guide groove is provided along the axial direction of the frame body at the frame body at the upper end or the lower end of the bed frame; An electric cylinder is fixed to the frame, the electric cylinder has an actuating shaft, the actuating shaft protrudes or retracts along the axial direction of the frame, the end shaft of the actuating shaft is provided with a guide wheel, so The guide wheel slides and shifts in the guide groove; A pull rod, the pull rod includes opposite first and second ends, and the first end of the pull rod is axially connected with the guide wheel; A swing rod, the swing rod includes opposite first and second ends, the first end of the swing rod is axially arranged on the frame of the bed frame, and the second end of the pull rod is axially connected to the In the middle section between the first end and the second end of the pendulum rod, the second end of the pendulum rod is provided with a shaft rod; The two turning parts are arc-shaped and have opposite first and second ends. Correspondingly, the second end of the second turn-over member is provided with an arc-shaped through slot arranged along the arc shape of the turn-over member, and the arc-shaped through slot of the second turn-over member is the shaft of the swing lever Worn by The protruding or retraction of the actuating shaft of the electric cylinder links the guide wheel on the pull rod to move in the guide groove from a first position to a second position, or from the first position to a third position , And therefore pull the pendulum rod, so that the shaft rod assembled at the second end of the pendulum rod moves to the right-inclined position in the lying position of the arc-shaped slot of one of the turning parts, or the shaft The rod is moved to the left-inclined position in the flat position of the arc-shaped slot of the second turning member, and then the bed is linked to the right or left to automatically turn the patient over.

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