CN201275216Y - Electric nursing bed - Google Patents

Abstract

The utility model is an electric nursing bed, comprising a combined bed board, a bed board frame, a bed frame, a bed frame, a linear push rod and a linkage mechanism, the linear push rod and the linkage structure are arranged between the bed frames, and the linear push rod The lower end is fixed on the bed frame, the upper end is connected with the first connecting rod, and connected with the second connecting rod through the first connecting rod. At the same time, the linear push rod is connected with the third connecting rod through the second connecting rod; Under the synchronous push of the push rod, the buttock bed board rotates around the rotating shaft of the bed frame, and the back bed board is raised or leveled through the connection between the support frame and the back bed board and the hip bed board frame; at the same time, the calf board and the foot board are turned down, It is an "L" shaped structure. The utility model has the advantages of providing an electric nursing bed that can be operated by the bedridden person by himself, and simultaneously completes the actions of lifting the back, lowering the hips, bending the legs, and stepping on the feet. The movement adjustment is more reasonable, the reliability is higher, and the production cost is reduced. , conducive to the popularization and application of electric nursing beds.

Description

An electric nursing bed

【Technical field】

The utility model relates to an electric nursing bed in the technical field of service robots. Specifically, it is an electric nursing bed that is linked by a single power input and multi-axis, and can simultaneously complete the actions of raising the back, lowering the hips, bending the legs, and stepping on the feet.

【Background technique】

The nursing bed is a service robot that can improve the self-care ability of bedridden elderly or patients, reduce the work intensity of nursing staff, and reduce the worries of family members. With the continuous improvement of people's life expectancy, the aging population in society is increasing, and the demand for nursing beds is also increasing. With the development of technology and the society's more attention to the elderly and bedridden patients, there are more and more functional nursing beds, which provide various conveniences for the life and treatment of the elderly or bedridden patients.

At present, the electric nursing beds related to the utility model mainly include: one is to use electric or manual methods to drive the corresponding parts of the bed board to move through the transmission chain, so that the human body is in postures such as sitting, lying, and lying; After decelerating and increasing torque, the connecting rod mechanism is driven to drive the corresponding part of the bed board to move, so as to realize the transformation of the bedridden person's body position.

But, there are still some deficiencies in existing electric nursing bed at present:

(1) The chain transmission does not have the self-locking function, and the bed board moving cannot be in a locked static state when the motor is powered off, which will affect the rest of the bedridden person.

(2) The noise of the chain transmission is too large, and the phenomenon of tooth jumping is prone to occur, thereby affecting the safety of the nursing bed.

(3) Driven by a servo motor, because the price of the servo motor is more expensive, the cost of the electric nursing bed is too high, so it is difficult to popularize.

(4) The overturning mechanism adopts a link mechanism with a single motor input and a single shaft output, and one motor only drives one side of the bed board, so the power utilization efficiency is not high, and the energy saving effect is relatively poor.

【Content of utility model】

The purpose of this utility model is to overcome the deficiencies of the prior art, to provide an electric nursing bed, which can be operated by the bedridden person to simultaneously complete the actions of raising the back, lowering the buttocks, bending the legs, and stepping on the feet (normal sitting posture). The motion adjustment of the electric nursing bed is more reasonable and the reliability is higher, but the production cost is reduced, which is more conducive to the popularization and application of the electric nursing bed.

In order to achieve the above object, the technical scheme that the utility model takes is:

An electric nursing bed, including a combined bed board composed of a back board, a hip board, a calf board and a foot board, a bed board frame, a bed frame including a bed base frame and a bed frame, and a linear push rod and a link mechanism, the back board, The frame of the buttock bed board, calf board and foot board is hinged with bolts—except the hip bed board and calf board. It is characterized in that there is a chute on the top of the bed frame and a shaft hole near the middle; The linear push rod and the connecting rod mechanism are arranged between the bed frame and the bed frame under the combined bed board. The connecting rod mechanism includes: the first connecting frame rod, the second connecting frame rod, the third connecting frame rod, the first connecting frame rod Rod, second connecting rod, third connecting rod, and relate to bed frame and bed frame; connection, the lower end of the first connecting rod is fixed on the bed frame, the upper end of the first connecting rod is connected with the second connecting rod through the first connecting rod, and at the same time, the linear push rod is connected with the third connecting rod through the second connecting rod The frame rod is connected, one end of the third connecting rod is connected with the bed frame through the connecting shaft, the other end of the third connecting rod is connected with the third connecting rod with bolts, and the other end of the third connecting rod is welded to the front end of the foot plate;

The push of the linear push rod makes the second link rod rotate around the hinge between the buttocks bed board and the back bed board, so that the hip bed board rotates around the rotating shaft hole on the bed frame, and the back bed board is moved by the support frame arranged under the back bed board frame. Lifting, through the bolted connection between the back bed board and the buttock bed board frame, the back bed board can be raised or leveled; at the same time, the push of the linear push rod makes the third link rod drive the calf board and the foot board around the connecting shaft on the bed frame , and the hinge between the calf plate frame and the foot plate frame is turned down, so that the calf plate is vertical, and the foot plate forms the second horizontal plane below the level of the nursing bed.

The rotation of the lower leg board and the foot board is synchronously linked with the rotation and lifting of the back bed board; the rotation range of the back bed board is 75°-85°, and the rotation range of the lower leg board is 70°-80°.

The connecting rod is a rotating member with one end connected to the bed frame, including a first connecting rod, a second connecting rod and a third connecting rod.

The linear push rod is the power source of the linkage mechanism, which is composed of a 24V voltage motor, a worm gear mechanism and a trapezoidal screw mechanism; The level of the nursing bed should be consistent.

The positive effect of a kind of electric nursing bed of the utility model is:

(1) Replace the servo motor with a linear push rod, use a plane hinge mechanism, and the transmission mechanism, frame, bed frame, etc. are made of metal materials and composite materials, and standard bolts and nuts are used for the hinge.

(2) A set of linkage mechanism adopts one linear push rod and one output of matching power supply, realizing the function of single power and three outputs, saving electric devices.

(3) Realized that the electric nursing bed can simultaneously carry out the actions of lifting the back, lowering the hips, bending the legs, and stepping on the feet, making the movement adjustment more reasonable, and avoiding the situation that the bedridden person slides when sitting upright, so that the bedridden person can sit in the lying position It can be freely transformed between sitting postures (curved legs and feet).

(4) The production is convenient, the use is convenient, and the cost is low, which is conducive to the popularization and use of electric nursing beds and the health recovery of patients.

【Description of drawings】

Accompanying drawing 1 is the structural representation of combined bed board;

Accompanying drawing 2 is the side view structure schematic diagram of a kind of electric nursing bed of the utility model;

Accompanying drawing 3 is the structural representation of a kind of electric nursing bed of the utility model;

Accompanying drawing 4 is the structural representation of bed frame;

Accompanying drawing 5 is the structural representation of linear push rod and link mechanism;

Accompanying drawing 6 is the structural representation of the first connecting rod;

Accompanying drawing 7 is the structural representation of the second link bar and support frame;

Accompanying drawing 8 is the structural representation of the second connecting rod;

Accompanying drawing 9 is the structural representation of the third connecting rod;

Accompanying drawing 10 is the structural representation of shank plate;

Accompanying drawing 11 is the structural representation of the third connecting rod and foot plate.

The labels in the accompanying drawings are respectively:

1. Back bed board, 2. Buttock bed board, 3. Calf board,

4. Foot plate, 5. The first connecting rod, 6. The first connecting rod,

7. The second connecting rod, 8. The second connecting rod, 9. Linear push rod,

10. Third link rod, 11. Linear push rod installation rod, 12. Shaft,

13. The first connecting rod mounting rod, 14. The bed frame, 15. The bed frame,

16. Chute, 17. Shaft hole, 18. The third connecting rod,

19. Connect the shaft.

【Detailed ways】

A specific embodiment of an electric nursing bed of the present utility model is given below in conjunction with the accompanying drawings.

See attached drawing 1. The bed board of an electric nursing bed of the utility model is a combined bed board, including a back board 1, a buttocks board 2, a calf board 3 and a foot board 4, which are all placed on the metal frames of each part, that is, the back board frame 1. The buttocks bed frame, the thigh board frame and the calf board frame constitute the metal bed board frame, and the frames of each part are hinged with standard bolts—except the hip board and thigh board; the back board 1, the hip board 2, and the calf board 3 Shelve in relevant metal frame with foot plate 4, because be movable between frame and frame, therefore, also be movable between back bed board 1, buttocks bed board 2, calf board 3 and foot board 4. Have a chute 16 on the top of the bed frame, and have a shaft hole 17 near the middle; the buttocks bed board 2 can move and rotate in the chute 16 to prevent the bedrider from slipping forward in the process of sitting upright.

See accompanying drawings 2, 3 and 5. Under the combined bed board, a linear push rod 9 and a link mechanism are arranged between the bed frame 14 and the bed frame 15. The link mechanism is a metal rod linkage structure, including the first link bar 5 and the second link bar. 7. The third connecting rod 10 (the connecting rod is a connecting rod member with one end connected to the bed frame), the first connecting rod 6, the second connecting rod 8, the third connecting rod 18, and related to the bottom of the bed Frame 14 and frame 15 on the bed. The linear push rod 9 is the power source of the link mechanism, which is composed of a 24V voltage motor, a worm gear mechanism and a trapezoidal screw mechanism. The back bed board 1, the calf board 3 and the foot board 4 are driven by the linkage mechanism to move, which is the end of the utility model. The hip-curved leg pedal linkage mechanism provides linear reciprocating power; when the power is on, the linear push rod 9 pushes the linkage mechanism to rotate, and when the power is off, the linear push rod 9 stops, and the connecting rods of the driven linkage mechanism have no relative movement , are at rest.

Fix the lower end of the linear push rod 9 on the linear push rod mounting rod 11 of the bed frame 14, connect the upper end of the linear push rod 9 with the first connecting frame rod 5, and connect the lower end of the first connecting frame rod 5 with the bed frame 14 is hinged by bolts, and its upper end is connected with the second connecting rod 7 through the first connecting rod 6 (the second connecting rod 7 is connected with the buttocks bed board 2), and at the same time, the linear push rod 9 (including the first connecting rod 5 ) is connected with the third connecting rod 10 through the second connecting rod 8, and one end of the third connecting rod 10 is connected with the bed frame 15 through the connecting shaft 19, and the other end of the third connecting rod 10 is connected with the third connecting rod by bolts 18 connection, the other end of the third connecting rod 18 is welded on the front end of foot plate 4.

The push of the linear push rod 9 makes the second link rod 7 rotate around the rotating shaft hole 17 on the bed frame 15, and drives the buttocks bed board 2 to move and slide along the chute 16. The support frame structure is arranged under the back bed board 1, and its Under the promotion of the link mechanism, the back bed board 1 is lifted, and the back bed board is raised and leveled through the bolt connection (rotating shaft) between the back bed board 1 and the buttocks bed board 2 frame, so as to realize the sitting posture of the bedridden person.

At the same time, the promotion of the linear push rod 9 makes the third connecting rod 10 drive the calf plate 3 and the foot plate 4 to rotate around the connecting shaft 19 on the bed frame 15 and the hinge between the thigh plate frame and the calf plate frame. The calf plate 3 and the foot plate 4 are turned down around the rear frame (rotating shaft) of the bed frame 15, the calf plate 3 is vertically turned down, and the foot plate 4 forms the second horizontal plane below the level of the nursing bed. Sitting with feet upright allows the bedridden person to bend and hang his legs naturally while sitting up, forming a complete upright sitting posture.

Due to the effect of the plane linkage mechanism, the flipping of the calf board 3 and the foot board 4 and the lifting of the back board 1 are synchronously linked, and the rotation range of the back board 1 can reach 75°～85°; the rotation range of the thigh board 3 can be Up to 70°～80°, because the buttocks bed board 2 moves and slides in the chute 16, so the front side of the buttocks bed board 2 sinks slightly, which can prevent the bedridden person from slipping forward in the process of sitting upright.

When the linear push rod 9 is working, it forms a planar mechanism with a degree of freedom with the linkage mechanism, which realizes the function of lifting the back, placing the buttocks, bending the legs, and stepping on the legs; The zero-degree-of-freedom plane truss makes the plane linkage mechanism in a stable state; when the linear push rod 9 moves to the limit position in the opposite direction, the back bed board 1, calf board 3 and foot board 4 connect with the entire electric nursing bed through the plane linkage mechanism. The level remains the same, and the electric nursing bed is in a lying state.

Accompanying drawing 4,6 to 11 are the structural representations of relevant parts of the utility model, wherein:

The bed frame 15 of accompanying drawing 4 is a metal support, has a chute 16 at the top, and has a shaft hole 17 in the near middle;

The two ends of the first connecting rod 5 of accompanying drawing 6 are arc-shaped, and a through hole is provided in the middle of the arc;

The second connecting rod 7 of accompanying drawing 7 is a triangular bracket, which is arranged below the hinge at the front end of the buttocks bed board 2;

Accompanying drawing 8 is the second connecting rod 8 of long metal bar, and its two ends are arc-shaped, and through hole is provided in the middle of arc;

The third connecting rod 10 of accompanying drawing 9 is in the shape of a triangular knife, and has through holes at the tip of the knife, the heel of the knife, and the end of the handle;

Accompanying drawing 10 is the structural representation of thigh plate 3;

Accompanying drawing 11 is the structural representation of shank plate 4, is welded with the 3rd connecting rod 18 below its connection end, the other end of the 3rd connecting rod 18 is arc-shaped, is provided with through hole in the middle of arc.

The bed frame in the utility model, the bed frame, and the connecting rod mechanism are all made of metal materials and/or composite materials, and the standard parts of bolts and nuts are selected for hinge joints. Therefore, the production and purchase of parts are relatively easy, which makes the utility model manufacture It is convenient and the cost is easy to control, all of which are beneficial to the popularization and large-scale production of the product of the utility model.

Claims (6)

1, a kind of electric care bed, comprise the combination type bed board that constitutes by back bed board, buttocks bed board, thigh plate and calf plate, the bed board framework, comprise the bedstead that a underframe and bed are put on the shelf, and linear push rod and linkage, be movably hinged with bolt between the framework of back bed board, buttocks bed board, calf plate and sole and the framework---except buttocks bed board and the calf plate, it is characterized in that, the top of frame has chute in bed, the nearly middle shaft hole that has; Described linear push rod, linkage be arranged under the combination type bed board the bed underframe with bed put on the shelf between, linkage comprises: first side link, second side link, the 3rd side link, first connecting rod, second connecting rod, third connecting rod, and relate to a underframe and the bed put on the shelf; The lower end of linear push rod is fixed on the linear push rod mounting rod of a underframe, the upper end of linear push rod is connected with first side link, the lower end of first side link is fixed on the underframe, the upper end of first side link is connected with second side link by first connecting rod, simultaneously, linear push rod is connected with the 3rd side link by second connecting rod, one end of the 3rd side link is put on the shelf with bed by connecting axle and is connected, the other end of the 3rd side link is connected with third connecting rod with bolt, and the other end that third connecting rod connects is welded on the front end of sole;

The promotion of linear push rod makes second side link around the hinged rotation between buttocks bed board and the back bed board, the shaft hole of buttocks bed board on putting on the shelf around bed rotated, by the bracing frame that is arranged under the bed board framework of back the back bed board is lifted, be connected with bolt between the buttocks bed board framework by the back bed board back bed board is raised or set level; Simultaneously, the promotion of linear push rod make the 3rd side link drive connecting axle on putting on the shelf around bed of calf plate and sole, and calf plate framework and sole framework between hinged under turn over, make calf plate vertical, sole forms second horizontal plane under the nursing bed horizontal plane, the Structure Attitude that L-shaped bent lower limb step is sat up straight.

2, according to claim 1 a kind of electric care bed, it is characterized in that synchronous interaction is lifted in the rotation of the rotation of described calf plate, sole and back bed board.

3, according to claim 2 a kind of electric care bed, it is characterized in that the rotation amplitude of back bed board is 75 °～85 °, the rotation amplitude of calf plate is 70 °～80 °.

4, according to claim 1 a kind of electric care bed, it is characterized in that described side link is the revolving member that has an end to be connected with bedstead, comprise first side link, second side link and the 3rd side link.

5, according to claim 1 a kind of electric care bed, it is characterized in that described linear push rod is the power source of linkage, form by 24V voltage motor, worm and worm gear and trapezoidal screw mechanism.

6, according to claim 5 a kind of electric care bed, it is characterized in that when linear push rod moved to extreme position in the other direction, back bed board, calf plate and sole and whole electric care bed horizontal plane were consistent.

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