WO2019157609A1

WO2019157609A1 - Labor-saving driving device for nursing bed

Info

Publication number: WO2019157609A1
Application number: PCT/CN2018/000129
Authority: WO
Inventors: 赖振标; 赖婷玉
Original assignee: 赖振标; 赖婷玉
Priority date: 2018-02-13
Filing date: 2018-04-08
Publication date: 2019-08-22
Also published as: CN110141435A

Abstract

A labor-saving driving device (90) for a nursing bed (100), comprising a power output shaft (41) for driving a drive mechanism (50), and then the drive mechanism (50) drives a first and second pushing rods (60, 70), respectively; the first pushing rod (60) can drive a backside flexible mount (20) to be at a tilt angle, and the second pushing rod (70) can synchronically drive a leg flexible mount (30) to settle downward. The driving device (90), constituted by lever operational principle and used on the nursing bed (100), has labor-saving characteristic and operational convenience, and thus can be used for a patient to defecate on the sickbed, thereby achieving an effect that the patient can take care of himself.

Description

Labor-saving transmission device for nursing bed

Technical field

The invention relates to a labor-saving transmission device for a nursing bed, in particular to a device with labor-saving characteristics based on the principle of lever operation.

Background technique

As the population of Taiwan in China ages, many elderly diseases also increase, and many people with limited mobility, stroke, brain lesions, central nervous system damage and paralysis or long-term illness are incapable of mobility and must lie for a long time. In the nursing bed, the movement of the patient needs to rely on the family and the nursing care to assist with the greater strength. It also causes inconvenience to the family, the care and the patient. In addition, the patient assists the family or the caregiver to solve the excrement or bath. The problem is that the patient feels deprived of dignity and gives the patient a great psychological burden.

1A and 1B are an "automatic care bed" disclosed in CN101912332A, comprising: a bed body 1, a back movable plate 131, an intermediate bed plate 132, and a leg movable plate 133 disposed on the bed body. And a nursing hole 132a disposed in the intermediate bed 132; in order to allow the patient to perform the defecation action directly on the hospital bed, the bottom of the back movable plate 131 and the leg movable plate 133 must be respectively provided with a

driving member

131a, 133a It is raised to the state shown in Fig. 1B. However, it is found that the driving

members

131a, 133a used in the existing nursing bed are mostly the direct driving mode of the pneumatic cylinder, but the

driving members

131a, 133a are arranged under the bed 1 to directly push the back movable plate. 131 and the leg movable plate 133 are very laborious, so the braking ability cannot be too small, so that not only power is consumed, but also the driving member 133a is provided at the bottom of the leg movable plate 133, so that the leg movable plate 133 can only be upward. The jacking does not allow for downward subsidence. Therefore, in the use mode shown in Fig. 1B, when the patient excretes in the nursing hole 132a, the leg must be lifted. In fact, the posture is not very appropriate and comfortable, and there is still improvement. space.

The present inventors have been able to provide a practical nursing bed labor-saving transmission device in view of the absence of the existing hospital bed, which is a problem to be solved by the present invention.

Summary of the invention

The main technical problem to be solved by the present invention is to overcome the above-mentioned drawbacks of the prior art, and to provide a labor-saving transmission device for a nursing bed, which is a transmission device of a back movable frame and a leg movable frame, and is operated by a lever operation principle. It has the use of labor-saving features for ease of use and comfort; it has the dual function of both manual and electric operation.

The technical solution adopted by the present invention to solve the technical problem thereof is:

The utility model relates to a labor-saving transmission device for a nursing bed, comprising: a bed frame body of a nursing bed, wherein the bed frame body is formed by a frame and a plurality of brackets connected between the frames, and defines a long body. The first direction of the frame is connected to a first longitudinal shaft, and the first longitudinal shaft is provided with a first handle. The two sides are pivotally disposed between the outer frames of the bed frame body; a leg movable frame includes two parallel transverse links, and the bottom of the transverse link is connected to a second longitudinal shaft The second longitudinal shaft is provided with a second handle, and the two sides are pivotally mounted on the bracket of the bed frame body, and the intermediate position of the transverse link is set as a pivotable pivot And the transverse link is provided with a plurality of straight support rods on the outer side of the pivotal body; a control mechanism is disposed on the outer frame of the bed frame body, and includes: a) a first a power output shaft having one end extending through a third shaft seat and having a first driven wheel; b) a first hand crank handle Provided on a tube body and rotatable, and driving a first driving wheel disposed on a fourth shaft seat, the first driving wheel meshing with the first driving wheel, by the hand crank Rotating, thereby driving the power output shaft to rotate; c) a motor is fixed to the outer frame by a plate member, the motor has a second driving wheel on the rotating shaft; d) a second power output shaft, The second outer driving wheel is disposed on the outer frame, and the second driving wheel is engaged with the second driving wheel 441, and the second power output shaft is located on the same axis corresponding to the first power output shaft; e). a first clutch axially disposed between the first power output shaft and the second power output shaft, comprising a first sleeve and a first spring sleeve disposed on an end of the first power output shaft And the first sleeve is slidable on the first power output shaft, and the first sleeve is opposite to the other end of the first spring, and is provided with a first joint sleeve having a concave and convex surface, and a second Connecting the end of the second power output shaft, and engaging with the first joint sleeve to be axially divided a state, a panel, disposed above the first clutch, and having a rotary button disposed above the first sleeve, wherein the first sleeve is axially displaced by the turning of the rotary button, and further The first coupling sleeve and the second coupling sleeve are controlled to be engaged or disengaged with each other; g) the other end of the first power output shaft extends through a fourth axle seat, and a third driving wheel is disposed, and The third driving wheel is an umbrella gear, and the third driving wheel is an umbrella gear, which is disposed on the upper end of the straight shaft and meshes with the third driving wheel, and the fourth driving wheel is an umbrella gear. The transmission mechanism is disposed on the front side outer frame of the bed frame body, and comprises: a) a first transmission rod, the first transmission rod has one end extending through a fifth shaft seat And a fourth passive wheel, the fourth driven wheel is an umbrella gear, and meshes with the fourth driving wheel, the other end of the first transmission rod extends through a sixth shaft seat; b). a transmission rod is axially driven by the first transmission rod, and the second transmission rod extends through a seventh shaft seat at one end and extends at the other end An eighth driving base; c) a first driving portion, disposed on the first transmission rod, comprising a first seat body for the first transmission rod to extend, and the first transmission rod is at the first a fifth driving wheel is disposed in the body, and a ninth shaft seat perpendicular to the first transmission rod is disposed in the body; d) a second clutch axially disposed on the first transmission rod and the second Between the transmission rods, the first transmission rod and the second transmission rod are axially coupled or axially separated. The second clutch includes a third coupling sleeve connected to the first transmission rod. The second sleeve is sleeved on the end of the second transmission rod, and the second sleeve is slidable on the second transmission rod, and a fourth joint sleeve is connected to the second sleeve a tube end portion and a state in which the third joint sleeve is mutually engaged and axially separable; a slider is connected to the second sleeve, and a guide wire is fixed at one end of the seventh shaft seat. And the wire core of the guide wire extends from the seventh shaft seat to the slider, a second spring sleeve is disposed on the wire core, and the slider and the second sleeve have An axial thrust, which in turn can control the fourth joint sleeve and the third joint sleeve to be in a state of being mutually coupled and axially separable; e) a second drive portion disposed on the second transmission rod The second transmission body is provided for the second transmission rod to extend, and the second transmission rod is provided with a sixth driving wheel in the second seat body, and the second seat body is provided with a second transmission body. a tenth shaft seat of the rod; f). the other end of the wire is connected to a positioning block, and the wire core is connected to a bottom end of a operating rod, and the wire core is pulled by the operating rod for controlling the fourth The coupling sleeve and the third coupling sleeve are in a state of being mutually coupled and axially separable; a first pushing rod is driven by the first driving rod, and the tail end of the first pushing rod is pivotally connected to the back The first drive handle of the movable frame has a thread inside the front end, a first screw portion extends into the first push-up bar to be screwed, and another portion extends through the first shaft seat of the first drive portion, and the end The portion is provided with a fifth passive wheel engaged with the fifth driving wheel, and the fifth driving wheel drives the fifth passive wheel to advance Driving the first screw to rotate, the first pushing rod is linearly displaced to drive the back movable frame to be in a flat state or to pick up an inclined angle; and a second pushing rod is driven by the second driving rod The tail end of the second push rod is pivotally connected to the second handle of the leg movable frame, and the front end is internally provided with a thread, and a second screw portion extends into the second push rod to be screwed. a portion of the second shaft seat of the second driving portion is disposed, and the end portion is provided with a sixth driven wheel that meshes with the sixth driving wheel, and the sixth driving wheel drives the sixth driving wheel to drive the first The rotation of the two screws causes the second push rod to be linearly displaced to drive the leg movable frame to be laid flat or to settle downward.

Thereby, the first clutch of the control mechanism selects a manual or electric mode to rotate the power output rod to drive the first transmission rod to rotate, and then drives the linear displacement of the first push rod to drive the back movable frame. In a flat state or an inclined angle; further, the second transmission rod is controlled to be axially coupled with the first transmission rod by the second clutch, or is axially separated, and the leg movable frame is controlled. The flat state or the downward subsidence is achieved, so that one of the power output rods can synchronously drive the back movable frame and the leg movable frame to operate.

The invention is a transmission device formed by the principle of lever operation, and is used on a nursing bed, has the characteristics of labor-saving, achieves convenience in use, saves energy and comfort, and can be used for the patient to directly perform defecation in the hospital bed. In order to reduce the burden on patients and improve the convenience of patients' bowel movements, they have the effect of self-care without the assistance of others.

The utility model has the beneficial effects that the transmission device of the back movable frame and the leg movable frame has the function of using the labor-saving force to achieve convenient use and comfort, and has the dual operation of manual and electric operation. efficacy.

DRAWINGS

The invention will now be further described with reference to the drawings and embodiments.

1A is a perspective view of a conventional care bed.

Fig. 1B is a side view of a conventional care bed.

Figure 2A is a perspective view of a preferred embodiment of the present invention showing the left front and rear squint.

Figure 2B is a perspective view of a preferred embodiment of the present invention showing the right front squint.

Figure 3 is a perspective view of a preferred embodiment of the present invention showing a squint from the bottom.

Figure 4 is a perspective view of a preferred embodiment of the present invention showing the back movable frame raised and the leg movable frame sunk.

Figure 5 is a top plan view of a preferred embodiment of the present invention.

Figure 6 is a left side view of a preferred embodiment of the present invention.

Figure 7 is a right side elevational view of a preferred embodiment of the present invention.

Figure 8A is a perspective view of the transmission structure of the preferred embodiment of the present invention, showing the left front and rear squinting.

Fig. 8B is an enlarged perspective view showing 8B of Fig. 8A.

Fig. 8C is an enlarged perspective view showing 8C of Fig. 8A.

Fig. 8D is an enlarged perspective view showing 8D in Fig. 8A.

Fig. 8E is an enlarged perspective view of Fig. 8A taken at 8E.

Figure 9A is a perspective view of a transmission structure in accordance with a preferred embodiment of the present invention, showing a squint from the bottom.

Fig. 9B is an enlarged perspective view showing 9B in Fig. 9A.

Fig. 9C is an enlarged perspective view showing 9C in Fig. 9A.

Figure 9D is an enlarged perspective view of 9D in Figure 9A.

Figure 10A is a top plan view of a transmission structure in accordance with a preferred embodiment of the present invention.

Fig. 10B is an enlarged schematic view showing 10B of Fig. 10A.

Figure 10C is a schematic illustration of the clutch disengagement shown in Figure 10B.

Figure 11 is a perspective view showing the state of use of the present invention.

Figure 12 is a side elevational view of the state of use of the present invention showing a patient in a sitting position.

The label in the figure shows:

10 bed body

11 frame

12 bracket

20 back movable frame

21 back frame

22 first longitudinal shaft

23 first drive handle

24 first axle seat

30 leg movable frame

31 transverse link

311 pivot body

312 support rod

32 second longitudinal shaft

33 second drive handle

34 second axle seat

40 control mechanism

41 power output shaft

411 first passive wheel

412 third drive wheel

42a third axle seat

42b fourth axle seat

43 hand crank handle

431 tube

432 first drive wheel

433 fourth axle seat

44 motor

441 second drive wheel

442 board

45 second power output shaft

451 second passive wheel

46 first clutch

461 first casing

462 first spring

463 first combination set

464 second combination set

47 panel

471 button

48 straight axis

481 third passive wheel

482 fourth drive wheel

50 transmission mechanism

51a first transmission rod

51b second transmission rod

511 fourth passive wheel

512 fifth drive wheel

513 sixth drive wheel

52a fifth axle seat

52b sixth axle seat

53 first drive department

531 first seat

532 ninth axle seat

54 second clutch

541 third combination set

542 fourth combination set

543 second casing

544 slider

545 second spring

55 second drive

551 second seat

552 tenth axle seat

56a seventh axle seat

56b eighth axle seat

561 side

57 guides

571 core

572 positioning block

58 operating lever

581 shaft bolt

59 positioning board

591L slot

60 first push rod

61 first screw

62 fifth passive wheel

63 thread

64 end

70 second push rod

71 second screw

72 sixth passive wheel

73 thread

End of 74

80 turn over the top support mechanism

81 third push rod

82 third screw

84 longitudinal rod

85 guide wheel

86 pipe body

87 second hand crank handle

88 third drive handle

89 eleventh axle seat

Labor-saving transmission for 90 nursing beds

10A tripod

20A back cushion

30A active cushion

100 nursing bed

Detailed ways

First, referring to FIG. 2A to FIG. 7 , a preferred embodiment of the labor-saving transmission device 90 of the care bed of the present invention comprises: a bed frame body 10 of a nursing bed, the bed frame body 10 is provided by an outer frame 11 and A rectangular body composed of a plurality of brackets 12 connected between the outer frames 11 defines a longer direction in the following embodiment as "transverse direction" and a shorter direction as "longitudinal direction".

A back movable frame 20 includes a back frame 21, and the bottom of the back frame 21 is connected to a first longitudinal shaft 22, and the first longitudinal shaft 22 is provided with a first drive handle 23, and the two sides are The first axle seat 24 is pivoted between the outer frames 11 of the bed frame body 10.

A leg movable frame 30 includes two parallel transverse links 31. The bottom of the transverse link 31 is connected to a second longitudinal shaft 32. The second longitudinal shaft 32 is provided with a second handle 33. The second shaft seat 34 is pivotally disposed on the bracket 12 of the bed frame body 10, and the intermediate position of the transverse link 31 is set as a pivotable pivot body 311. Further, the transverse link is A plurality of straight support rods 312 are disposed on the outer side of the pivot body 311. The function of the pivoting body 311 is such that when the lateral link 31 is sunk, as shown in FIG. 4, a bending type is present, and the straight supporting rod 312 is provided with a pad body (not shown in FIG. 4, Reference may be made to Figures 11 and 12, shown at 30A).

A control mechanism 40 is disposed on the outer frame 11 of the bed frame body 10, as shown in FIG. 8B and FIG. 9B, and includes a first power output shaft 41, and the power output rod 41 has one end extending through the first The triaxial seat 42a is provided with a first driven wheel 411. A first hand crank handle 43 is disposed on a tube body 431 and can be rotated 360 degrees, and drives a first driving wheel 432 disposed on a fourth shaft seat 433. The first driving wheel 432 is coupled to the first driving wheel 432. The first driven wheel 411 is engaged by the rotation of the hand crank 43 to drive the power output shaft 41 to rotate. A motor 44 is fixed to the outer frame 11 by a plate member 442. A second driving wheel 441 is disposed on the rotating shaft of the motor 44. A second power output shaft 45 is disposed on the outer frame 11 and is provided with a second driven wheel 451 for engaging with the second driving wheel 441, and the second power output shaft 45 corresponds to the first power The output shaft 41 is located on the same axis. A first clutch 46 is axially disposed between the first power output shaft 41 and the second power output shaft 45, and includes a first sleeve 461 and a first spring 462 disposed on the first power output. The first sleeve 461 is slidable on the first power output shaft 41, and the first sleeve 461 is opposite to the other end of the first spring 462. The first joint sleeve 463 and the second joint sleeve 464 of the surface are connected to the end of the second power output shaft 45, and are engaged with the first joint sleeve 463 to be axially separated from each other. A first panel 47 is disposed above the first clutch 46, and a button 471 is disposed above the first sleeve 461. The first sleeve 461 is axially displaced by the rotation of the knob 471. The first joint sleeve 463 and the second joint sleeve 464 can be controlled to be in a state of being engaged or separated from each other. As shown in FIG. 8C and FIG. 9C , the other end of the first power output shaft 41 extends through a fourth axle seat 42 b and is provided with a third driving wheel 412 , and the third driving wheel 412 is a bevel gear. The third passive wheel 481 is also a bevel gear, which is disposed at the upper end of the straight shaft 48 and meshes with the third driving wheel 412. The fourth driving wheel 482 is a bevel gear disposed on the straight direction. The bottom end of the shaft 48.

A transmission mechanism 50 is disposed on the front side outer frame 11 of the bed frame body 10, and includes:

a first transmission rod 51a, the first transmission rod 51a has one end extending through a fifth shaft seat 52a, and is provided with a fourth driven wheel 511, the fourth driven wheel 511 is an umbrella gear, and the fourth active The wheel 482 is engaged, and the other end of the first transmission rod 51a extends through a sixth shaft seat 52b. As shown in FIG. 8D and FIG. 9D, a second transmission rod 51b is axially driven by the first transmission rod 51b, and the second transmission rod 51b has one end extending through a seventh shaft seat 56a. The other end is extended to an eighth shaft seat 56b. A first driving portion 53 (shown in FIGS. 8C and 9C) is disposed on the first transmission rod 51a, and includes a first seat body 531 for the first transmission. The rod 51a is extended, and the first transmission rod 51a is provided with a fifth driving wheel 512 in the first seat body 531. Further, the base body 531 is provided with a ninth shaft seat perpendicular to the first transmission rod 51a. 532. A second clutch 54 is axially disposed between the first transmission rod 51a and the second transmission rod 51b for controlling the axial coupling or axial direction of the first transmission rod 51a and the second transmission rod 51b. In the disengaged state, as shown in FIG. 10B and FIG. 10C, the second clutch 54 includes a third coupling sleeve 541 connected to the end of the first transmission rod 51a, and a second sleeve 543 is sleeved thereon. The second transmission rod 51b is slidable on the second transmission rod 51b, and a fourth coupling sleeve 542 is connected to the end of the second sleeve 543, and the same The three coupling sleeves 541 are in a state of being axially separated from each other; a slider 544 is coupled to the second sleeve 543, and a guide wire 57 is fixed at one end to the side edge 561 of the seventh shaft seat 56a, and The core 571 extends from the seventh shaft seat 56a to the slider 544, a second spring 545 is sleeved on the core 571, and has an axial thrust on the slider 544 and the second sleeve 543. In addition, the fourth joint sleeve 542 and the third joint sleeve 541 can be controlled to be in a state of being mutually coupled and axially separated. As shown in FIG. 8D and FIG. 9D, a second driving portion 55 is disposed on the second transmission rod 51b, and includes a second base 551 for the second transmission rod 51b to extend, and the second transmission The rod 51b is provided with a sixth driving wheel 513 in the second base 551. Further, the second base 551 is provided with a tenth shaft seat 552 perpendicular to the second transmission rod 51b; as shown in FIG. 8E, The other end of the guiding wire 57 is connected to a positioning block 572, and the core 571 is connected to a bottom end of a operating rod 58. The wire core 571 is pulled by the operating rod 58 for controlling the fourth coupling sleeve 542 and the wire. The third joint sleeve 541 is in a state of being axially separated from each other. In the embodiment, the middle position of the operating rod 58 is longitudinally extended by a shaft bolt 581, so that the operating rod 58 is pivoted by the shaft 581. The shaft center can be yawed forward and backward to pull the core 571, thereby controlling the second clutch device 54 to be in a state of being engaged or axially separated, and a positioning plate 59 fixed to the outer frame 11 of the bed frame body 10. The positioning plate 59 is provided with an L-shaped groove 591 for the upper end portion of the operating rod 58 to protrude and can be moved or carded in the L-shaped groove 591. .

A first push-up lever 60, as shown in FIG. 8C and FIG. 9C, is driven by the first transmission rod 51a, and the rear end 64 of the first push-up lever 60 is pivotally connected to the back movable frame 20 a driving handle 23 is provided with a thread 63 at the front end thereof. A first screw 61 extends into the first pushing rod 60 to be screwed, and another portion penetrates the first shaft seat 532 of the first driving portion 53. And the fifth driving wheel 62 is engaged with the fifth driving wheel 512, and the fifth driving wheel 512 drives the fifth driving wheel 62 to drive the first screw 61 to rotate. The lifting rod 60 is linearly displaced to drive the back movable frame 20 in a flat state (as shown in FIG. 2A) or to pick up an inclined angle (as shown in FIG. 4).

A second push-up lever 70, as shown in FIG. 8D and FIG. 9D, is driven by the second transmission rod 51b, and the tail end 74 of the second push-up lever 70 is pivotally connected to the leg movable frame 30. The second handle 33 has a thread 73 at the front end thereof, a second screw 71 extends into the second push rod 70 to be screwed, and the other portion extends through the second shaft seat 552 of the second drive portion 55. And the sixth passive wheel 72 is engaged with the sixth driving wheel 513, and the sixth driving wheel 513 drives the sixth driven wheel 72 to drive the second screw 71 to rotate, so that the second The push rod 70 is linearly displaced to bring the leg movable frame 30 into a flat state (as shown in FIG. 2A) or to settle downward (as shown in FIG. 4).

Thereby, the first clutch 46 of the control mechanism 40 selects a manual or electric mode, and the power output rod 41 rotates to drive the first transmission rod 51a to rotate, and then the linear displacement of the first push rod 60 is further driven. The back movable frame 20 is brought into a flat state or raised by an inclined angle; further, the second transmission lever 51b is controlled by the second clutch 54 to be axially coupled with the first transmission rod 51a, or axially In the separated state, the leg movable frame 30 is controlled to be laid flat or downwardly settled, so that the back movable frame 20 and the leg movable frame 30 can be synchronously driven by one of the power output rods 41.

As shown in FIG. 8A and FIG. 9A, the present invention further includes a roll-over ejector mechanism 80 disposed longitudinally on the bed frame body 10 and adjacent to the position of the back movable frame 20. The roll-over ejector mechanism includes: The third push rod 81 is internally provided with a thread; a third screw 82 extends into the third push rod 81 to be screwed, and a part of the third push rod 81 is extended; a transverse rod 83, two The side is pivoted on the bracket 12 of the bed frame body 10 by an eleventh shaft seat 89; a longitudinal rod 84 is vertically disposed on the horizontal rod 83 and driven by the same, and can be turned left or right. The yaw is disposed, and the longitudinal rod 84 is provided with a plurality of guide wheels; a second hand crank handle 87 is disposed on a tube body 86 and can be rotated 360 degrees, and is driven to be disposed in the third push rod 81. The third screw 82 rotates and linearly displaces relative to the third push rod 81; a third drive handle 88 has an upper end fixed to the transverse rod 83 and a bottom end pivotally connected to the outer end of the third screw 82 and It is braked to control the rotation of the transverse rod 83, thereby controlling the yaw of the longitudinal rod 84. In this embodiment, the two ends of the longitudinal rod 84 are provided with a guide wheel 85 when the longitudinal rod 84 is yawed. It is necessary to use the guide wheel 85 provided on the two ends to push up the back pad body 20A (shown in FIG. 11) formed by the bed plate or the mattress to help the patient turn over, which has the effect of labor saving.

11 and 12 are a perspective view and a side view of a use state of the present invention, which is a use aspect of the labor-saving transmission device 90 of the present invention applied to a care bed 100. A plurality of tripods 10A are mounted on the bottom of the bed frame body 10, a back pad body 20A is mounted on the back movable frame 20, and a movable pad body 30A is mounted on the leg movable frame 30, and thus, as shown in the figure As shown in Fig. 12, a patient can be placed in a sitting position directly on the hospital bed to perform a defecation action, thereby reducing the burden on the patient and improving the convenience of the patient's defecation, and having the effect of self-care without the assistance of others. As for the defecation device (not shown) provided at the bottom of the bed frame body 10, the patent object of the present invention has not been patented, and therefore the details are not described herein.

The main claim of the present invention lies in the technical features of the labor-saving transmission device 90. With the above configuration, the following effects are used in the following, and the following is explained:

First, the conventional screen or nursing bed of the present invention is directly driven by a pneumatic cylinder, because the back movable panel 131 and the leg movable panel 133 are pushed in a direct driving manner, which is very laborious and consumes power, and the driving member 133a is provided. At the bottom of the leg flap 133, the leg flap 133 can only be lifted upwards and cannot be lowered downward. Therefore, in the use mode shown in FIG. 1B, when the patient excretes the care hole 132a, the leg must be Lifting high, in fact, this posture is not very appropriate and comfortable. In contrast, the present invention utilizes the lever operating principle to amplify the input force and give a large output force. The mechanical benefit of the lever is the ratio of the output force to the input force, and thus has a "leverage" function. Therefore, the first hand drive shaft 43 is only required to be rotated by the hand, that is, the first power output shaft 41 can drive the transmission mechanism 50, and the first push rod 60 is driven by the transmission mechanism 50. And the second push-up lever 70, the first push-up lever 60 can drive the back movable frame 20 to be in a flat state or pick up an inclined angle; the second push-up lever 70 can synchronously drive the leg movable frame 30 flat state or downward settlement, this lever principle transmission mode has the use of labor-saving features to achieve ease of use and energy saving.

Furthermore, the present invention can utilize the first clutch 46 of the control mechanism 40 to select whether to manually operate the first crank handle 43 or to drive the first power output shaft 41 to drive the first power output shaft 41. Transmission mechanism 50. Therefore, the present invention has the dual functions of both manual and electric operation.

Moreover, the second clutch device 54 of the transmission mechanism 50 can be used to control the first transmission rod 51a and the second transmission rod 51b to be axially coupled or axially separated. That is, when the first power output shaft 41 drives the transmission mechanism 50, the present invention can select whether the second transmission rod 51b is to be synchronized with the first transmission rod 51a, that is, whether the leg movable frame 30 is to be Cooperating with the back movable frame 20. Therefore, the present invention can control the operating position of the transmission mechanism 50 according to the needs of the patient.

Therefore, the invention discloses that the labor-saving transmission device is used on the nursing bed, has labor-saving characteristics, achieves convenience in use, saves energy and comfort, and can be used for the patient to directly perform defecation in the hospital bed, Reduce the burden on patients, improve the convenience of patients' bowel movements, and have the effect of self-care without the assistance of others.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still Within the scope of the technical solution of the present invention.

Claims

A labor-saving transmission device for a nursing bed, comprising:

a bed frame body of a nursing bed, the bed frame body is a rectangular body composed of an outer frame and a plurality of brackets connected between the outer frames, and defines a longer direction as a transverse direction and a shorter direction as a longitudinal direction;

a back movable frame includes a back frame, the bottom of the back frame is connected to a first longitudinal shaft, the first longitudinal shaft is provided with a first drive handle, and the two sides are pivoted with a first shaft seat The outer frame of the bed frame;

a leg movable frame comprising two parallel transverse links, the bottom of the transverse link is connected to a second longitudinal shaft, the second longitudinal shaft is provided with a second drive handle, and the two sides are The two-axis seat is pivotally disposed on the bracket of the bed frame body, and the intermediate position of the transverse link is set as a pivotable pivot body. Further, the transverse link is provided on the outer side of the pivot body. Straight to the support rod;

a control mechanism is disposed on the outer frame of the bed frame body and includes:

a) a first power output shaft, the power output rod has one end extending through a third shaft seat, and is provided with a first driven wheel;

b) a first hand crank handle, disposed on a tube body and capable of rotating, and driving a first driving wheel disposed on a fourth shaft seat, the first driving wheel and the first The passive wheel is engaged by the rotation of the handle, thereby driving the power output shaft to rotate;

c) a motor is fixed to the outer frame by a plate member, and a second driving wheel is disposed on the rotating shaft of the motor;

a second power output shaft, disposed on the outer frame, having a second driven wheel coupled to the second driving wheel 441, and the second power output shaft corresponding to the first power output The axes are on the same axis;

e) a first clutch axially disposed between the first power output shaft and the second power output shaft, comprising a first sleeve and a first spring sleeve disposed on the first power output shaft The first sleeve is slidable on the first power output shaft, and the first sleeve is opposite to the other end of the first spring, and a first joint sleeve having a concave-convex surface is disposed. a second coupling sleeve is connected to the end of the second power output shaft, and is in a state of being axially separated from the first coupling sleeve;

f). A panel is disposed above the first clutch, and a rotary button is disposed above the first sleeve, and the first sleeve is axially displaced by the turning of the rotary button, thereby controlling the The first joint sleeve and the second joint sleeve are in a state of being engaged or separated from each other;

g). The other end of the first power output shaft extends through a fourth axle seat, and is provided with a third driving wheel, and the third driving wheel is an umbrella gear, and a third driven wheel is an umbrella gear. The fourth driving wheel is disposed at the upper end of the straight shaft and is engaged with the third driving wheel, and the fourth driving wheel is a bevel gear, which is disposed at the bottom end of the straight shaft;

a transmission mechanism is disposed on the front side frame of the bed frame body, and includes:

a) a first transmission rod, the first transmission rod has one end extending through a fifth shaft seat, and is provided with a fourth driven wheel, the fourth driven wheel is an umbrella gear, and meshes with the fourth driving wheel The other end of the first transmission rod extends through a sixth shaft seat;

b) a second transmission rod, which is axially and driven by the first transmission rod, the second transmission rod has one end extending through a seventh shaft seat and the other end extending through an eighth shaft seat;

a first driving portion is disposed on the first transmission rod, and includes a first seat body for the first transmission rod to extend, and the first transmission rod is provided with a first body in the first seat rod a five-drive wheel, wherein the seat body is provided with a ninth axle seat perpendicular to the first transmission rod;

d) a second clutch axially disposed between the first transmission rod and the second transmission rod for controlling axial coupling or axial separation of the first transmission rod and the second transmission rod The second clutch includes a third coupling sleeve connected to the end of the first transmission rod, a second sleeve sleeved on the end of the second transmission rod, and the second sleeve is The second transmission rod slides, a fourth joint sleeve is connected to the second sleeve end portion, and the third joint sleeve is mutually engaged and axially separated; a slider and the second sleeve a tube connection, a guide wire, one end of which is fixed to the side of the seventh shaft seat, and the core of the guide wire extends from the seventh shaft seat to the slider, and a second spring is sleeved on the wire core Up, and having an axial thrust force on the slider and the second sleeve, thereby controlling the fourth joint sleeve and the third joint sleeve to be mutually engaged and axially separated;

e) a second driving portion, disposed on the second transmission rod, comprising a second seat for the second transmission rod to extend, and the second transmission rod is provided with a first body in the second seat a sixth driving wheel, wherein the second body is provided with a tenth shaft seat perpendicular to the second transmission rod;

f). The other end of the cable is connected to a positioning block, and the core is connected to a bottom end of a lever, and the core is pulled by the operating rod to control the fourth joint and the third joint The sleeves are in a state of being mutually coupled and axially separable;

a first push rod is driven by the first drive rod, the tail end of the first push rod is pivotally connected to the first handle of the back movable frame, and the front end is internally provided with a thread, a part of the first screw Extending into the first push-up bar in a screwed state, another portion extending through the first axle seat of the first driving portion, and the end portion is provided with a fifth passive wheel engaged with the fifth driving wheel, The fifth driving wheel drives the fifth passive wheel to drive the first screw to rotate, so that the first pushing rod is linearly displaced, so as to drive the back movable frame to be in a flat state or to pick up an inclined angle;

a second push rod is driven by the second drive rod, the tail end of the second push rod is pivotally connected to the second handle of the leg movable frame, and the front end is internally provided with a thread and a second screw a portion of the second push rod is screwed into the second shaft, and the other portion is provided with a second shaft of the second driving portion, and a sixth passive wheel is engaged with the sixth driving wheel. The sixth driving wheel drives the sixth passive wheel to drive the second screw to rotate, so that the second pushing rod is linearly displaced to drive the leg movable frame to be laid flat or to settle downward;

Thereby, the first clutch of the control mechanism selects a manual or electric mode to rotate the power output rod to drive the first transmission rod to rotate, and then drives the linear displacement of the first push rod to drive the back movable frame. In a state of being laid flat or tilting an angle; in addition, the second transmission lever is controlled by the second clutch to be axially coupled with the first transmission rod 5, or is axially separated, and the leg activity is controlled. The frame is laid flat or settles downwards, so that one of the power output rods can synchronously drive the back movable frame and the leg movable frame.
A labor-saving transmission device for a care bed according to claim 1, further comprising a roll-over ejector mechanism disposed longitudinally on the bed frame body and adjacent to the position of the back movable frame, the roll-up top support Institutions include:

a third push rod with a thread inside;

a third screw extends into the third push rod in a screwed state, and a portion extends out of the third push rod;

a transverse rod, the two sides of which are pivoted on the bracket of the bed frame body by an eleventh shaft seat;

a longitudinal rod disposed vertically on the transverse rod and driven by the same, can be deflected to the left or right, and the longitudinal rod is provided with a plurality of guide wheels;

a second hand crank handle is disposed on a tube body and can be rotated 360 degrees, and drives a third screw disposed in the third push rod to rotate and linearly shift relative to the third push rod;

a third drive handle has an upper end fixed to the transverse rod, and a bottom end pivotally connected to the outer end of the third screw and braked for controlling the rotation of the transverse rod to control the longitudinal rod yaw.
The labor-saving transmission device of the care bed according to claim 1, wherein the intermediate position of the operating rod is longitudinally extended by a shaft bolt, so that the operating rod can be pivoted with the shaft bolt as an axis a yaw to pull the core, thereby controlling the second clutch device to be in a state of being engaged or axially separated, and a positioning plate fixed to the outer frame surface of the bed frame body, the positioning plate being provided with an L shape The groove is protruded from the upper end of the operating rod and can be moved or positioned in the L-shaped groove.