TWM619478U - Latch structure for roll over mechanism of electric bed - Google Patents

Abstract

This creation is related to a lock structure of the turning mechanism of an electric bed. The lock structure is arranged between the bed frame and the bed body. The lock structure can buckle the turning mechanism that is also located between the bed frame and the bed body. Lock or unlock to ensure that the bed is lying flat or tilted and turned over; when the bed is lying flat, the hooks of the lock structure are buckled on the rotating shaft of the bed. When the starting piece is driven to swing to one side, the starting piece opens the guide wheel connected to the buckle hook, and synchronously causes the buckle hook to separate from the rotating shaft to unlock. When the bed body returns to the flat state, the guide wheel returns due to the elasticity of the spring. The force is pulled back to the original position, and the buckle hook also returns to the locked state where the rotary shaft is buckled; accordingly, a locking structure that is automatically unlocked and locked is formed.

Description

Locking structure of turning mechanism of electric bed

This creation is related to a lock structure, in particular to an innovative structure that can automatically hook and buckle or automatically release the rotating shaft of the turning mechanism of an electric bed.

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 and other places. 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 patients, the better the occurrence or deterioration of bedsores. However, the disease The patient cannot turn over on his own and must rely on the assistance of a doctor or nurse, so 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.

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 and assists 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.

However, the turning mechanism of the above patents is not provided with a structure that can automatically lock when the bed is lying down or automatically unlock when the bed wants to turn over. This makes it impossible to perform turning over the patient in one go, which is inconvenient. The missing.

Today, the creator of this creation has developed this creation in view of the shortcomings in the actual implementation and use of the above-mentioned previous proposals.

The main purpose of this creation is to provide a lock structure for the turning mechanism of an electric bed. The lock mechanism can automatically lock the bed and the bed frame when the bed is lying flat, and lock when the bed wants to turn over. The buckle structure can automatically unlock the bed body and the bed frame, so that the operation of driving the bed body to automatically turn over the patient can be done at one go and is more convenient.

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

A lock structure of a turning mechanism of an electric bed, the lock structure includes a rotating shaft, a bearing seat, a hook, an elastic piece, and a start piece; wherein:

The rotary shaft is fixed and projected on the upper rod at the upper end of the bed body of an electric bed, the electric bed has a bed frame, and the bed frame pivots the bed body with its upper and lower ends;

The bearing seat is fixed on the upper frame body at the upper end of the bed frame, the bearing seat corresponds to the rotating shaft, the bearing seat has a groove portion with an opening facing upward, and the rotating shaft is arranged in the groove Inside and for the support of the bearing;

One end of the hook is formed with a hook portion, the hook portion hooks the rotating shaft, and the other end opposite to the hook portion is a shaft setting portion, and the shaft setting portion is shafted on the upper frame body ；

The two ends of the elastic member are respectively fixed to the upper frame and the hook;

The activation piece is a pendulum rod connected to a turning mechanism, and when the pendulum rod swings, the activation piece also swings, and pushes and links the hook;

When the turning mechanism is driven to tilt and swing the bed, the activation piece swings upwards with the swing lever, and the activation piece pushes the interlocking hook, so that the hook takes the shaft portion as an axis Pivot to an angle and release from the state of hooking the rotating shaft. At this time, the elastic member is in a stretched state. When the turning mechanism is driven back to the lying state of the bed, the rising start piece As the swing rod swings back to its original position, the elastic restoring force of the elastic member is used to return the hook to the position to hook the rotating shaft again. The guide wheel will be separated from the concave arc section, and the activation piece will contact the guide wheel with the arc section,

The lock structure of the turning mechanism of the electric bed as described above, wherein the lock structures are arranged in pairs, respectively located on two sides of the swing rod of the turning mechanism, and correspond to each other.

The lock structure of the turning mechanism of the electric bed as described above, wherein the lock structure includes a guide wheel, and the guide wheel is arranged on the ear of the hook adjacent to the shaft portion.

The lock structure of the turning mechanism of the electric bed as described above, wherein the activation piece is in the shape of a fan, including a horizontal section corresponding to the chord of the fan shape, and an arc corresponding to the fan shape The arc-shaped section is provided with a concave arc section at the junction of the horizontal section and the arc-shaped section, and the concave arc section is accommodated by the guide wheel when the starting piece is not swinging upward.

The advantages of the locking structure of the turning mechanism of the electric bed:

With the linkage between the starter piece and the buckle hook, and the elastic pull-return relationship between the elastic body and the buckle hook, when the patient wants to turn over and the swing lever of the turning mechanism drives the starter piece to swing, the starter piece will link the buckle hook Unlock the rotating shaft of the hook buckle, so that the bed can be smoothly driven by the turning mechanism to be inclined; when the turning mechanism drives the bed back to the lying state, the buckle is pulled back by the elastic restoring force of the elastic body. The locked state of the rotation axis forms an electric bed that can automatically unlock and lock the bed body of the electric bed during the automatic turn-over operation, ensuring the stability of the bed body when it is lying flat or tilted.

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 to third pictures.

The electric bed of this creation includes a bed frame 1 and a bed body 2 with the upper and lower ends of the bed frame 1 pivoted. A turning mechanism 3 is provided between the bed frame 1 and the bed body 2 to be linked by the turning mechanism 3 The bed body 2 is tilted to the left, lying flat or tilted to the right, and the lock structure of this creation is to automatically unlock and lock the bed body 2 of the electric bed to ensure that the bed body 2 is lying flat or tilted and turned over. stability.

Among them, the lock structure includes a rotating shaft 4, a bearing seat 5, a guide wheel 6, a hook 7, an elastic member 8, and a starting piece 9; among them:

The rotating shaft 4 is fixed and projecting on the upper rod 21 at the upper end of the bed body 2 of the electric bed;

The bearing seat 5 is fixed on the upper frame 11 at the upper end of the bed frame 1. The bearing seat 5 is provided corresponding to the rotary shaft 4, and the bearing seat 5 has a groove 51 with an upward opening, so that the rotary shaft 4 is embedded in the groove. 51, and according to this, the bearing 5 can support the rotating shaft 4;

The guide wheel 6, the bobbin is set on the upper frame 11 of the bed frame 1;

The hook 7 has two opposite ends. One end of the hook 71 is used to hook the rotating shaft 4, and the other end of the hook 7 is the shaft setting part 72. The shaft setting part 72 is used to The buckle 7 is axially arranged on the upper frame body 11, and an ear 73 is protruded adjacent to the axial part 72, so that the ear 73 is connected with the guide wheel 6;

The two ends of the elastic member 8 are respectively fixed on the upper frame 11 and the pivot 61 of the guide wheel 6;

The activation piece 9 is connected to the swing lever 31 of a turning mechanism 3. When the swing lever 31 swings, the activation piece 9 also swings. The activation piece 9 has a fan shape and includes a horizontal section 91 corresponding to the chord of the fan shape. , And an arc section 92 corresponding to the arc of the fan shape. A concave arc section 93 is provided at the junction of the horizontal section 91 and the arc section 92, and the concave arc section 93 accommodates the guide wheel 6.

During implementation, when the turning mechanism 3 is driven to tilt and swing the bed 2 (please refer to the third and fifth figures), the starting piece 9 will swing up and swing with the swing lever 31 of the turning mechanism 3, and at the same time, the starting piece 9 is raised The swing will push the guide wheel 6 synchronously, make the guide wheel 6 separate from the concave arc section 93, the start piece 9 contacts the guide wheel 6 with the arc section 92, and the guide wheel 6 is pushed to make the hook 7 take the shaft part 72 as the axis Pivot to an angle, and thus make the hook 71 out of the state of the hook rotating shaft 4. At this time, the elastic member 8 is in a stretched state. 9 returns to the original position with the lower swing of the pendulum rod 31, and when the concave arc section 93 of the starting piece 9 again corresponds to the guide wheel 6, the guide wheel 6 will pull the guide wheel 6 back to the concave arc section 93 due to the elastic restoring force of the elastic member 8. In the middle, and the interlocking hook 7 rotates by an angle with the shaft portion 72 as the axis, so that the hook portion 71 hooks the rotating shaft 4 again (please refer to the third and fourth figures).

The above disclosure is only described by the structure in which the lock structure is arranged at one end of the upper frame 11 of the electric bed frame 1. In this state, the electric bed has a single-sided inclined structure. If the electric bed has a double-sided inclined structure , The locking structures are arranged in pairs, that is, the locking structures are respectively provided beside the swing rod 31 of the turning mechanism 3, and the two locking structures correspond to each other. When the bed 1 is tilted to the right, it is set on the swing rod 31 The hook 7 of the locking structure on the right side is in the locked state where the rotating shaft 4 is buckled, and the hook 7 of the locking structure provided on the left side of the swing lever 31 is in the unlocked state detached from the buckling of the rotating shaft 4 (as shown in Figure 5). (Shown); On the contrary, when the bed body 1 tilts to the left, the hook 7 of the lock structure on the left side of the swing lever 31 is in the locked state with the rotating shaft 4, and the lock provided on the right side of the swing lever 31 The buckle hook 7 of the buckle structure is in the unlocked state from the buckle rotating shaft 4; when the bed body 1 is in the flat state, the buckle hooks 7 of the two locking structure are in the locked state with the rotating shaft 4 buckled (such as the fourth As shown in the figure).

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.

1: bed frame

11: Upper frame

2: bed

3: Turn over the body

31: swing bar

4: Rotary axis

5: Socket

51: Groove

6: Guide wheel

61: Pivot

7: hook

71: Hook

72: Shaft

73: Ear

8: Elastic parts

9: Startup film

92: arc segment

91: horizontal segment

93: concave arc

The first picture: the three-dimensional schematic diagram of the lock structure of the electric bed of this creation installed on the electric bed

The second picture: the enlarged picture of the first picture, the lock structure of the original creation of the electric bed

Figure 3: The three-dimensional view of the lock structure of the electric bed of this creation

Figure 4: Schematic diagram of the locking structure of the electric bed of this creation when the bed is lying flat

Figure 5: A schematic diagram of the locked and unlocked state of the lock structure of the electric bed of this creation when the bed is tilted to the right

11: Upper frame

4: Rotary axis

5: Socket

51: Groove

6: Guide wheel

61: Pivot

7: hook

71: Hook

72: Shaft

8: Elastic parts

9: Startup film

92: arc segment

91: horizontal segment

93: concave arc

Claims (4)

A lock structure of a turning mechanism of an electric bed, the lock structure includes: A rotary shaft, the rotary shaft is fixed and projected on the upper rod on the upper end of the bed body of an electric bed, the electric bed has a bed frame, and the bed frame pivots the bed with its upper and lower ends body; A bearing seat, the bearing seat is fixed on the upper frame body at the upper end of the bed frame, the bearing seat corresponds to the rotating shaft, the bearing seat has a groove portion with an opening facing upward, and the rotating shaft is arranged at In the groove portion and support the bearing seat; A clasp, one end of the clasp is to form a hook portion, the hook portion hooks the rotation shaft, and the other end opposite to the hook portion is a shaft setting portion, the shaft setting portion is set on the shaft Upper frame An elastic member, two ends of the elastic member are respectively fixed to the upper frame and the hook; and An activation piece, the activation piece is a swing lever connected to a turning mechanism, the activation piece also swings when the swing lever swings, and pushes and links the hook; When the turning mechanism is driven to tilt and swing the bed, the activation piece swings upwards with the swing lever, and the activation piece pushes and links the buckle hook, so that the buckle hook is set on the shaft As the axis pivots to an angle and departs from the state of hooking the rotation axis, the elastic member is in a stretched state. When the turning mechanism is driven back to the bed in a flat state, the upward The activation piece returns to the original position along with the lower swing of the swing rod, and uses the elastic restoring force of the elastic member to make the hook return to the position to hook the rotation shaft again. The locking structure of the turning mechanism of the electric bed according to claim 1, wherein the locking structures are arranged in pairs, respectively located on two sides of the swing rod of the turning mechanism, and corresponding to each other. The locking structure of the turning mechanism of an electric bed according to claim 2, wherein the locking structure includes a guide wheel, and the guide wheel is provided on the ear of the hook adjacent to the shaft portion . The lock structure of the turning mechanism of an electric bed according to claim 3, wherein the activation piece is in a fan shape, including a horizontal section corresponding to the chord of the fan shape, and a horizontal section corresponding to the fan shape The arc-shaped section of the arc is provided with a concave arc section at the junction of the horizontal section and the arc-shaped section, and the concave arc section is accommodated by the guide wheel when the starting piece is not swinging upward.

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