TWI674889B - Labor-saving transmission device for nursing bed - Google Patents

Abstract

A labor-saving transmission device for a nursing bed includes a power output shaft to drive a transmission mechanism, and the transmission mechanism drives the first and second push rods respectively. The first push rod can drive a movable back frame at an inclined angle. The two push rods can synchronously drive a leg movable frame to sink downward; the invention uses a transmission device composed of the principle of lever operation on a nursing bed, which has labor-saving features and convenience in operation, which can be used by patients directly The defecation action is performed on the bed to achieve the effect of patient self-care.

Description

Labor-saving transmission device for nursing bed

The invention relates to a labor-saving transmission device for a nursing bed, in particular to a device that uses the principle of lever operation and has the characteristics of using labor-saving features.

According to the aging of Taiwan's population, many elderly diseases have also increased, and many people with reduced mobility, stroke, brain disease, central nervous system damage, paralysis or prolonged illness in bed lack mobility and must lie for a long time. In the nursing bed, the patient's movement needs to rely on family members and caregivers to assist them with greater force. It also causes inconvenience to family members, caregivers and patients. In addition, patients in the family members or caregivers assist in solving excreta or bathing Problems make patients feel dignified and place a huge psychological burden on patients.

As shown in FIGS. 1A and 1B, it is an "automatic nursing bed" disclosed by CN101912332A, which includes: a bed body 1, a back movable plate 131, a middle bed plate 132, and a leg movable plate 133 provided on the bed body, and A nursing hole 132a is provided in the middle bed plate 132; in order to allow the patient to perform defecation directly on the bed, the bottom of the back movable plate 131 and the leg movable plate 133 must be respectively provided with driving members 131a, 133a, It rises to the state shown in FIG. 1B. However, most of the driving parts 131a and 133a used in conventional nursing beds are directly driven by pneumatic cylinders. However, such driving parts 131a and 133a are located under the bed 1 and push the back movable plate 131 directly. And the leg movable plate 133 is very laborious, so the braking capacity cannot be too small. In this way, not only power consumption, but the driving member 133a is attached to the bottom of the leg movable plate 133, so that the leg movable plate 133 can only be pushed upward. It cannot rise to settle downwards. Therefore, in the usage pattern shown in FIG. 1B, when the patient excretes through the nursing hole 132a, the legs must be raised. In fact, this posture is not very appropriate and comfortable, and there is still room for improvement. .

In view of the lack of conventional hospital beds, the inventor hopes to provide patients with a practical nursing bed energy-saving transmission device, which is a problem to be solved by the present invention.

The reason is that the main purpose of the present invention is to provide a labor-saving transmission device for a nursing bed. The transmission devices of the back movable frame and the leg movable frame are based on the principle of lever operation and have the characteristics of labor saving to achieve convenience. And comfortable.

The main object of the present invention is to provide a labor-saving transmission device for a nursing bed, which has the dual functions of manual operation and electric operation.

In order to achieve the above object, the technical means adopted by the present invention is a bed frame body for a nursing bed. The bed frame system is a rectangular body composed of an outer frame and a plurality of brackets connected between the outer frame, and defines a longer frame. The direction is horizontal, and the shorter direction is longitudinal. A back 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. A first shaft seat is pivotally arranged on the two sides between the outer frame of the bed frame body; a movable leg section includes two parallel transverse links, and the bottom of the transverse link is connected to a second longitudinal shaft A second drive handle is provided on the second longitudinal shaft, a second shaft seat is pivoted on the support of the bed frame body on the two sides, and the middle position of the transverse link is set as a pivotable pivot The connecting body, and further, the horizontal link is provided with a plurality of straight supporting rods on the outside of the pivot body; a control mechanism is provided on the outer frame of the bed frame body, and includes: a). A A first power output shaft, one end of the first power output shaft extends through a third shaft seat, and is provided with a first driven wheel; b). The first hand-cranked driving handle is arranged on a pipe body and can rotate 360 degrees, and drives a first driving wheel provided on a fourth shaft seat. The first driving wheel system and the first driving wheel The moving wheels are meshed, and the power output shaft is driven to rotate by the rotation of the first manual drive handle; c) a motor is fixed to the outer frame by a plate, and a second shaft is provided on the rotation shaft of the motor Driving wheel; d). A second power output shaft is provided on the outer frame, and a second passive wheel is arranged thereon, which is engaged with the second driving wheel, and the second The power output shaft corresponds to the first power output shaft and is located on the same axis; e). A first clutch is axially disposed between the first power output shaft and the second power output shaft, and includes a first A sleeve and a first spring are sleeved on the end of the first power output shaft, and the first sleeve system can slide on the first power output shaft, and the first sleeve is opposite On the other end of the first spring, a first coupling sleeve with a concave-convex surface, and a second coupling sleeve are connected to the end of the second power output shaft, and can be engaged with the first coupling sleeve and can be engaged with each other. A state of axial separation; f). A panel is provided above the first clutch, and a rotary button is provided above the first sleeve, and the first sleeve is axially rotated by turning the rotary button. The displacement can further control the first coupling sleeve and the second coupling sleeve to be engaged or separated from each other; g). The other end of the first power output shaft extends through a fourth shaft seat, and is provided with a third drive Wheel, and the third driving wheel is a bevel gear, and the third driven wheel is a bevel gear. Straight to the upper end of the shaft and meshing with the third driving wheel, a fourth driving wheel is a bevel gear, which is arranged at the bottom end of the straight shaft; a transmission mechanism is arranged on the front outer frame of the bed frame body It includes: a) a first transmission rod, one end of which extends through a fifth shaft seat, and is provided with a fourth driven wheel, the fourth driven wheel is a bevel gear and is connected with the first Four driving wheels are engaged, and the other end of the first transmission rod extends through a sixth shaft seat; b). A second transmission rod is coaxial with and driven by the first transmission rod, and the second transmission rod is One end extends through a seventh shaft seat, and the other end extends through an eighth shaft seat; c). A first driving part is provided on the first transmission rod, and includes a first seat system for the first transmission rod. Extending, and the first transmission rod is provided with a fifth driving wheel in the first seat body, and further, a ninth shaft seat perpendicular to the first transmission rod is provided in the seat body; d) a second clutch, The system is axially arranged between the first transmission rod and the second transmission rod, and is used to control the first transmission rod and the second transmission rod to be axially coupled and linked. In the axially separated state, the second clutch includes a third coupling sleeve connected to an end of the first transmission rod, and a second sleeve is sleeved on the end of the second transmission rod, and The second sleeve can slide on the second transmission rod. Four coupling sleeves are connected to the end of the second sleeve, and are in a state of being engaged with each other and axially detachable with the third sleeve; a slider is connected to the second sleeve, a guide cable, and one end thereof Fixed on the side of the seventh shaft seat, and the wire core of the guide cable extends from the seventh shaft seat to be connected to the slider, and a second spring is sleeved on the wire core, and the slider is And the second sleeve has an axial thrust, so that the fourth coupling sleeve and the third coupling sleeve can be controlled to be engaged with each other and can be separated axially; e) a second driving part, which is arranged at The second transmission rod includes a second seat system for the second transmission rod to penetrate and extend, and the second transmission rod is provided with a sixth driving wheel in the second seat body, and the second seat A tenth shaft seat perpendicular to the second transmission rod is provided in the body; f). The other end of the guide cable is connected to a positioning block, and the wire core is connected to the bottom end of an operating rod, which is pulled by the operating rod. The wire core is used to control the fourth coupling sleeve and the third coupling sleeve in a state of being engaged with each other and being axially separable; a first lift rod, Driven by the first transmission rod, the tail end of the first push-up rod is pivotally connected to the first drive handle of the back movable frame, and the front end is internally provided with a thread, and a part of a first screw system extends into the first push rod. The lift rod is in a screwed state, and the other part is extended through the first shaft seat of the first driving part, and a fifth passive wheel meshing with the fifth driving wheel is provided at the end, which is driven by the fifth driving wheel A fifth passive wheel drives the first screw to rotate, so that the first push rod is linearly displaced, so as to drive the back movable frame to be in a flat state or raise an inclined angle; a second push rod is Driven by the second transmission rod, the tail end of the second push-up rod is pivotally connected to the second drive handle of the leg movable frame, and the front end is internally provided with a thread, and a second screw system partially extends into the second The push-up lever is in a screwed state, and the other part is extended through the second shaft seat of the second driving part, and a sixth passive wheel meshing with the sixth driving wheel is arranged at the end. Drive the sixth passive wheel, and then drive the second screw to rotate, so that the second lift rod is linear Shift for driving the moving frame leg or settling down flat state.

Thereby, the first clutch of the control mechanism is selected to be manual or electric, so that the first power output shaft is rotated to drive the first transmission lever to rotate, and then the first The linear displacement of the push rod drives the back movable frame to be placed flat or to raise an inclined angle; further, the second clutch is used to control the second transmission lever to be axially coupled with the first transmission lever system, or In the axially separated state, the leg movable frame is controlled to lie flat or settle down to achieve that the first movable output shaft can synchronously drive the back movable frame and the leg movable frame to operate.

The invention is a transmission device based on the principle of lever operation. When it is used on a nursing bed, it has the characteristics of labor-saving, and achieves convenience in use, saves energy and comfort, and further enables patients to perform defecation directly on the bed. In order to reduce the burden on patients and improve the convenience of defecation, it has the effect of achieving self-care without the assistance of others.

10‧‧‧ Bed Frame

11‧‧‧ frame

12‧‧‧ bracket

20‧‧‧back movable rack

21‧‧‧back frame

22‧‧‧First longitudinal shaft

23‧‧‧First drive handle

24‧‧‧First shaft seat

30‧‧‧ leg movement rack

31‧‧‧Horizontal Link

311‧‧‧ pivot joint

312‧‧‧ support bar

32‧‧‧Second longitudinal shaft

33‧‧‧Second drive handle

34‧‧‧Second shaft seat

40‧‧‧Control agency

41‧‧‧First PTO shaft

411‧‧‧The first passive wheel

412‧‧‧the third driving wheel

42a‧‧‧Third shaft seat

42b‧‧‧Fourth shaft seat

43‧‧‧The first hand drive handle

431‧‧‧tube body

432‧‧‧first driving wheel

433‧‧‧Fourth axle seat

44‧‧‧ Motor

441‧‧‧Second driving wheel

442‧‧‧plate

45‧‧‧Second PTO shaft

451‧‧‧Second Passive Wheel

46‧‧‧first clutch

461‧‧‧First casing

462‧‧‧first spring

463‧‧‧First combined set

464‧‧‧Second Combination Set

47‧‧‧ Panel

471‧‧‧turn button

48‧‧‧Straight axis

481‧‧‧ Third Passive Wheel

482‧‧‧the fourth driving wheel

50‧‧‧ Transmission mechanism

51a‧‧‧First Transmission Rod

51b‧‧‧Second transmission lever

511‧‧‧The fourth passive wheel

512‧‧‧Fifth driving wheel

513‧‧‧the sixth driving wheel

52a‧‧‧Fifth shaft seat

52b‧‧‧Sixth shaft seat

53‧‧‧First drive unit

531‧‧‧First Block

532‧‧‧Ninth shaft seat

54‧‧‧Second clutch

541‧‧‧third combination set

542‧‧‧Fourth combined set

543‧‧‧Second Casing

544‧‧‧ slider

545‧‧‧second spring

55‧‧‧Second driving unit

551‧‧‧Second Block

552‧‧‧Tenth shaft seat

56a‧‧‧Seventh shaft seat

56b‧‧‧eighth shaft seat

561‧‧‧side

57‧‧‧Guidelines

571‧‧‧core

572‧‧‧ positioning block

58‧‧‧ Joystick

581‧‧‧shaft bolt

59‧‧‧Positioning plate

591‧‧‧L-shaped groove

60‧‧‧First push rod

61‧‧‧first screw

62‧‧‧Fifth Passive Wheel

63‧‧‧Thread

64‧‧‧ tail

70‧‧‧second lift lever

71‧‧‧Second screw

72‧‧‧ Sixth Passive Wheel

73‧‧‧Thread

74‧‧‧ tail

80‧‧‧ Turn over top support mechanism

81‧‧‧ third push rod

82‧‧‧Third screw

84‧‧‧ Longitudinal lever

85‧‧‧guide wheel

86‧‧‧ tube body

87‧‧‧Second hand crank drive

88‧‧‧ third drive handle

89‧‧‧ eleventh axle seat

90‧‧‧ Labor-saving transmission device for nursing bed

10A‧‧‧Tripod

20A‧‧‧Back cushion

30A‧‧‧Activity cushion body

100‧‧‧ Nursing Bed

FIG. 1A is a perspective view of a conventional nursing bed.

Figure 1B is a side view of a conventional nursing bed.

FIG. 2A is a perspective view of a preferred embodiment of the present invention, showing an oblique view from the left to the front.

FIG. 2B is a perspective view of a preferred embodiment of the present invention, showing an oblique view from right to front.

FIG. 3 is a perspective view of a preferred embodiment of the present invention, showing a diagonal view from the bottom.

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

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

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

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

FIG. 8A is a perspective view of a transmission structure according to a preferred embodiment of the present invention, showing an oblique view from the front to the back.

FIG. 8B is an enlarged perspective view shown by 8B in FIG. 8A.

FIG. 8C is an enlarged perspective view shown at 8C in FIG. 8A.

FIG. 8D is an enlarged perspective view shown by 8D in FIG. 8A.

FIG. 8E is an enlarged perspective view shown by 8E in FIG. 8A.

FIG. 9A is a perspective view of a transmission structure according to a preferred embodiment of the present invention, which is shown obliquely viewed from the bottom.

FIG. 9B is an enlarged perspective view shown at 9B in FIG. 9A.

FIG. 9C is an enlarged perspective view shown at 9C in FIG. 9A.

FIG. 9D is an enlarged perspective view shown at 9D in FIG. 9A.

10A is a top view of a transmission structure according to a preferred embodiment of the present invention.

FIG. 10B is an enlarged schematic view shown in 10B in FIG. 10A.

FIG. 10C is a schematic diagram showing the clutch release shown in FIG. 10B.

FIG. 11 is a reference perspective view of a use state of the present invention.

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

First, please refer to FIG. 2A to FIG. 7. A preferred embodiment of the labor-saving transmission device 90 of the nursing bed of the present invention includes: a bed frame 10 of the nursing bed. The bed frame 10 is formed by an outer frame 11. A rectangular body composed of a plurality of brackets 12 connected between the outer frame 11 and the following embodiments defines a longer direction as "lateral" and a shorter direction as "longitudinal".

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. The first longitudinal shaft 22 is provided with a first driving handle 23, and two sides are connected with A first shaft seat 24 is pivotally disposed 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 links 31 is connected to a second longitudinal shaft 32. The second longitudinal shaft 32 is provided with a second driving handle 33. The second side is pivotally mounted on the support 12 of the bed frame body 10 with a second shaft seat 34, and the middle position of the transverse link 31 is set as a pivotable pivot body 311. Furthermore, the transverse connection The rod 31 is provided with a plurality of straight support rods 312 on the outside of the pivot body 311. When the function of the pivot body 311 sinks the transverse link 31, as shown in FIG. 4, it exhibits a bent shape. The vertical support rod 312 is provided with a cushion body for installation (not shown in FIG. 4, refer to 30A in FIGS. 11 and 12).

A control mechanism 40 is provided on the outer frame 11 of the bed frame body 10. Please cooperate with FIG. 8B and FIG. 9B at the same time. The control mechanism 40 includes a first power output shaft 41 and one end of the first power output shaft 41. A third shaft seat 42a extends through and a first driven wheel 411 is provided. A first hand-cranked driving handle 43 is arranged on a pipe body 431 and can rotate 360 degrees, and drives a first driving wheel 432 provided on a fourth shaft seat 433. The first driving wheel 432 It is meshed with the first passive wheel 411, and the first power output shaft 41 is driven to rotate by the rotation of the first manual drive handle 43. A motor 44 is fixed on the outer frame 11 by a plate 442. A rotating shaft of the motor 44 is provided with a second driving wheel 441. A second power output shaft 45 is provided on the outer frame 11, and a second driven wheel 451 is provided thereon to mesh with the second driving wheel 441, and the second power output shaft 45 corresponds to the first The power 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 sleeved on the first The first sleeve 461 is slidable on the end of the power output shaft 41, and the first sleeve 461 is opposite to the other end of the first spring 462. A first coupling sleeve 463 and a second coupling sleeve 464 having a concave-convex surface are connected to the ends of the second power output shaft 45, and are in a state of being engaged with and detachable from each other with the first coupling sleeve 463. A panel 47 is provided above the first clutch 46, and a rotary button 471 is provided above the first sleeve 461, and the first sleeve 461 is axially displaced by turning the rotary button 471, and further The first coupling sleeve 463 and the second coupling sleeve 464 can be controlled to be engaged or separated from each other. Please cooperate with FIG. 8C and FIG. 9C at the same time. The other end of the first power output shaft 41 extends through a fourth shaft seat 42b, and a third driving wheel 412 is provided. The third driving wheel 412 is a bevel gear. A third passive wheel 481 is also a bevel gear, which is set at The upper end of the shaft 48 is meshed with the third driving wheel 412. A fourth driving wheel 482 is a bevel gear and is disposed at the bottom end of the straight shaft 48.

A transmission mechanism 50 is mounted on the front outer frame 11 of the bed frame body 10 and includes a first transmission rod 51a. One end of the first transmission rod 51a extends through a fifth shaft seat 52a, and a first There are four driven wheels 511. The fourth driven wheel 511 is a bevel gear and meshes with the fourth driving wheel 482. The other end of the first transmission rod 51a passes through a sixth shaft seat 52b. 8D and FIG. 9D, a second transmission rod 51b is coaxial with and driven by the first transmission rod 51a. One end of the second transmission rod 51b extends through a seventh shaft seat 56a. The other end extends through an eighth shaft seat 56b; a first driving part 53 (shown in FIGS. 8C and 9C) is provided on the first transmission rod 51a, and includes a first seat body 531 for the first A transmission rod 51a extends through, and the first transmission rod 51a is provided with a fifth driving wheel 512 in the first base body 531, and a ninth portion of the base body 531 is disposed perpendicular to the first transmission rod 51a. Shaft seat 532. A second clutch 54 is axially disposed between the first transmission lever 51a and the second transmission lever 51b, and is used to control the first transmission lever 51a and the second transmission lever 51b to be axially coupled or interlocked. In the disengaged state, please cooperate with FIG. 10B and FIG. 10C at the same time. The second clutch 54 includes a third coupling sleeve 541 connected to the end of the first transmission lever 51a. A second sleeve 543 is sleeved. On the end of the second transmission rod 51b, and the second sleeve 543 is slidable on the second transmission rod 51b, a fourth coupling sleeve 542 is connected to the end of the second sleeve 543, And the third coupling sleeve 541 is in a state of being engaged with each other and being axially detachable; a slider 544 is connected to the second sleeve 543, and a guide wire 57 is fixed at one end to the side of the seventh shaft seat 56a. Edge 561, and its wire core 571 extends from the seventh shaft seat 56a and is connected to the slider 544. A second spring 545 is sleeved on the wire core 571, and connects the slider 544 and the second sleeve. The tube 543 has an axial thrust, so that the fourth coupling sleeve 542 and the third coupling sleeve 541 can be controlled to be in a state of being engaged with each other and being axially separated. As shown in FIG. 8D and FIG. 9D, a second driving unit 55 is The second transmission rod 51b is provided on the second transmission rod 51b. The second transmission rod 51b includes a second base 551 for the second transmission rod 51b to pass through and extend. The driving wheel 513, and a tenth shaft seat 552 perpendicular to the second transmission rod 51b is provided in the second seat body 551; as shown in FIG. 8E, the other end of the guide wire 57 is connected to a positioning block 572 And the wire core 571 is connected to the bottom end of an operation lever 58, and the wire core 571 is pulled by the operation lever 58 to control the fourth coupling sleeve 542 and the third coupling sleeve 541 to be mutually locked and can be pivoted In the present embodiment, the middle position of the operating lever 58 is longitudinally extended by a shaft bolt 581, so that the operating lever 58 can be pivoted back and forth with the shaft bolt 581 as an axis, and the pulling The wire core 571, in turn, controls the second clutch device 54 to be engaged or axially separated, and a positioning plate 59 is fixed on the surface of the outer frame 11 of the bed frame body 10. The positioning plate 59 is provided with an L The shaped groove 591 is used for the upper end of the operating lever 58 to protrude and can be moved or locked in the L-shaped groove 591.

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

A second push-up lever 70 is driven by the second transmission lever 51b at the same time as shown in FIG. 8D and FIG. 9D. The rear end 74 of the second push-up lever 70 is pivotally connected to the leg movable frame. The second drive handle 33 of 30 is provided with a thread 73 inside the front end. A second screw 71 extends partly into the second push-up lever 70 in a screwed state, and another part penetrates the second drive part 55. two A shaft seat 552, and a sixth driven wheel 72 meshed with the sixth driving wheel 513 is provided at an end portion thereof. The sixth driving wheel 513 drives the sixth driven wheel 72 to drive the second screw 71 to rotate, The second push-up lever 70 is linearly displaced to drive the leg movable frame 30 in a flat state (as shown in FIG. 2A) or settle down (as shown in FIG. 4).

Thereby, the first clutch 46 of the control mechanism 40 selects a manual or electric mode, so that the first power output shaft 41 is rotated to drive the first transmission lever 51a, and then the first push rod 60 is driven linearly. The displacement drives the back movable frame 20 to be in a flat state or to raise an inclined angle; further, the second clutch 54 is used to control the second transmission rod 51b and the first transmission rod 51a to be axially coupled to each other, or In the axially separated state, the leg movable frame 30 is controlled to lie flat or settle down, so that the first movable output shaft 41 can synchronously drive the back movable frame 20 and the leg movable frame 30 to operate.

As shown in FIG. 8A and FIG. 9A, the present invention further includes a turn-over support mechanism 80 which is longitudinally disposed on the bed frame body 10 and close to the back movable frame 20. The turn-over support mechanism includes: A third push-up lever 81 is provided with a thread therein; a third screw 82 is extended into the third push-up lever 81 in a screwed state, and a part of the third push-up lever 81 extends out of the third push-up lever 81; a transverse lever 83. The two sides are pivotally mounted on the support 12 of the bed frame body 10 with an eleventh shaft seat 89. A longitudinal rod 84 is vertically arranged on the lateral rod 83 and driven by it, and can be oriented. A left or right yaw, and a plurality of guide wheels are provided on the longitudinal rod 84; a second hand-cranked driving handle 87 is set on a pipe body 86 and can be rotated 360 degrees, and is driven to set on the third The third screw 82 in the push-up lever 81 rotates and is linearly displaced relative to the third push-up lever 81; a third drive handle 88 whose upper end is fixed to the transverse rod 83, and its bottom end is pivotally connected to the third screw The outer end of 82 is braked by it to control the lateral lever 83 to rotate, thereby controlling the longitudinal lever 84 to yaw. In this embodiment, guide wheels 85 are provided on the two ends of the longitudinal rod 84. When the longitudinal rod 84 deflects. The back pad body 20A (shown in Fig. 11) composed of a bed board or a mattress is pushed up by a guide wheel 85 provided on the two ends to help the patient Turn over, it has labor-saving effect.

FIG. 11 and FIG. 12 are reference perspective views and side views of a use state of the present invention, which show a use state of the labor-saving transmission device 90 of the present invention applied to a care bed 100. It is provided with a plurality of leg frames 10A on the bottom of the bed frame body 10, a back cushion body 20A on the back movable frame 20, and a movable cushion body 30A on the leg movable frame 30. As shown in Fig. 12, a patient can be directly seated on a hospital bed to perform a bowel movement to reduce the burden on the patient, improve the convenience of the patient's defecation, and achieve 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, which is not the subject of the patent of the present invention, the invention has been applied for in another patent, so it will not be described in detail.

The main claim of the present invention lies in the technical characteristics of the labor-saving transmission device 90. With the above-mentioned structure, the use thereof has the following effect enhancement, which will be described later:

First of all, the traditional screen or nursing bed for removing the screen in the present invention is directly driven by a pneumatic cylinder, because the back movable plate 131 and the leg movable plate 133 are pushed by the direct driving method, which is very labor-intensive and consumes power. It is set at the bottom of the leg movable plate 133, so that the leg movable plate 133 can only be lifted upwards and cannot settle downwards. Therefore, when the patient uses the care hole 132a for excretion, the legs shown in FIG. You must lift up. In fact, this posture is not very appropriate and comfortable. In contrast, the present invention utilizes the principle of lever operation, which can 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, so it has a "leverage" function. Therefore, the present invention only needs to turn the first manual drive handle 43 by hand, that is, the first power output shaft 41 can be used to drive the transmission mechanism 50, and the transmission mechanism 50 drives the first push-up lever 60 respectively. 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 raise an inclined angle; the second push-up lever 70 can synchronously drive the leg movable frame 30Flat state or settling down, this lever principle transmission method has the characteristics of using labor-saving to achieve use Convenience and energy saving enhancement.

Furthermore, the present invention may use the first clutch 46 of the control mechanism 40 to select whether to manually operate the first manual drive handle 43 or to use the motor 44 to drive the first power output shaft 41 to drive the first Transmission mechanism 50. Therefore, the present invention has the dual function of both manual and electric operation.

In addition, in the present invention, 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 to be separated from each other. 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 connected with The back movable racks 20 are linked together. Therefore, the present invention can control the operating position of the transmission mechanism 50 according to the needs of the patient.

Therefore, the labor-saving transmission device disclosed in the present invention is used in a nursing bed, which has the characteristics of labor-saving, achieves convenience in use, saves energy and comfort, and further enables patients to perform a bowel movement directly on the bed, It reduces the burden on patients, improves the convenience of defecation, and has the effect of achieving self-care without the assistance of others.

In summary, the technical means disclosed in the present invention do have invention patent elements such as "newness", "progressivity" and "available for industrial use". A sense of virtue.

However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention. Modifications or equivalent changes made by those skilled in the art in accordance with the spirit of this case should still be included in the scope of patent application for this case.

Claims (3)

A labor-saving transmission device for a nursing bed, comprising: a bed frame body of the nursing bed, the bed frame system being a rectangular body composed of an outer frame and a plurality of brackets connected between the outer frame, and defining a longer The direction is horizontal, and the shorter direction is longitudinal. A back 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. A first shaft seat is pivotally arranged on the two sides between the outer frame of the bed frame body; a movable leg section includes two parallel transverse links, and the bottom of the transverse link is connected to a second longitudinal shaft A second drive handle is provided on the second longitudinal shaft, a second shaft seat is pivoted on the support of the bed frame body on the two sides, and the middle position of the transverse link is set as a pivotable pivot The connecting body, and further, the horizontal link is provided with a plurality of straight supporting rods on the outside of the pivot body; a control mechanism is provided on the outer frame of the bed frame body, and includes: a). A A first power output shaft, one end of the first power output shaft extends through a third shaft seat, and is provided with a first driven wheel; b). The first hand-cranked driving handle is arranged on a pipe body and can rotate 360 degrees, and drives a first driving wheel provided on a fourth shaft seat. The first driving wheel system and the first driving wheel The moving wheels are meshed, and the first power output shaft is driven to rotate by the rotation of the first hand-cranked drive handle; c) a motor is fixed to the outer frame by a plate, and a rotation shaft of the motor is provided with a A second driving wheel; d). A second power output shaft is provided on the outer frame, and a second passive wheel is provided thereon, which is engaged with the second driving wheel, and the second power output shaft corresponds to The first power output shaft is located on the same axis; e) a first clutch, which is arranged axially between the first power output shaft and the second power output shaft, and includes a first sleeve and a first spring sleeved on the first power output On the end of the shaft, and the first sleeve can slide on the first power output shaft, and the first sleeve is opposite to the other end of the first spring, and a first A coupling sleeve, a second coupling sleeve, connected to the end of the second power output shaft, and in a state of being engaged with and detachable from each other with the first coupling sleeve; f). A panel provided on the first Above the clutch, a rotary button is provided above the first sleeve, and the first sleeve is axially displaced by turning the rotary button, so that the first coupling sleeve and the second coupling sleeve can be controlled. Are engaged or separated from each other; g). The other end of the first power output shaft extends through a fourth shaft seat, and is provided with a third driving wheel, and the third driving wheel is a bevel gear, a third The driven wheel is a bevel gear, which is arranged at the upper end of the straight shaft and meshes with the third driving wheel. A fourth driving wheel is A bevel gear is provided at the bottom end of the straight shaft; a transmission mechanism is provided on the front outer frame of the bed frame body, and includes: a) a first transmission rod, one end of the first transmission rod A fifth shaft seat is extended through, and a fourth driven wheel is provided. The fourth driven wheel is a bevel 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 is coaxial with and driven by the first transmission rod, one end of the second transmission rod extends through a seventh shaft seat, and the other end extends through an eighth shaft seat; c). A first driving part is provided on the first transmission rod, and includes a first seat system for the first transmission rod to penetrate and extend, and the first transmission rod is provided with a fifth driving body in the first seat body. Wheel, and a ninth shaft seat perpendicular to the first transmission rod is provided in the seat body; d) a second clutch is axially disposed between the first transmission rod and the second transmission rod, and is used for Controlling the first transmission lever and the second transmission lever to be axially coupled or separated from each other, the The second clutch includes a third coupling sleeve connected to the end of the first transmission rod, a second sleeve is sleeved on the end of the second transmission rod, and the second sleeve is Sliding on the second transmission rod, a fourth coupling sleeve is connected to the end of the second sleeve, and is in a state of being engaged with and detachable from the third coupling sleeve, and a slider is connected to the second sleeve. The second sleeve is connected with a guide wire, one end of which is fixed to the side of the seventh shaft seat, and the wire core of the guide wire extends beyond the seventh shaft seat and is connected to the slider, and a second spring is a sleeve It is arranged on the wire core and has an axial thrust force to the slider and the second sleeve, so as to control the fourth coupling sleeve and the third coupling sleeve in a state of being engaged with each other and axially separated; e). A second driving part is provided on the second transmission rod, and includes a second seat system for the second transmission rod to penetrate and extend, and the second transmission rod is provided in the second seat body. There is a sixth driving wheel, and a tenth shaft seat perpendicular to the second transmission rod is provided in the second seat body; f). The other end of the guide cable is connected to a certain Block, and the wire core is connected to the bottom end of an operating lever, and the wire core is pulled by the operating lever to control the fourth coupling sleeve and the third coupling sleeve in a state of being snapped together and axially separated from each other A first push-up rod, driven by the first transmission rod, the tail end of the first push-up rod is pivotally connected to the first drive handle of the back movable frame, and the front end is provided with a thread, a first A part of the screw system extends into the first push-up rod in a screwed state, and another part penetrates the first shaft seat of the first driving part, and an end portion is provided with a fifth belt which is engaged with the fifth driving wheel. The moving wheel drives the fifth driven wheel with the fifth driving wheel, and then drives the first screw to rotate, so that the first push-up rod is linearly displaced, so as to drive the back movable frame to be flat or lift an inclined angle; A second push-up lever is driven by the second transmission lever. The tail end of the second push-up lever is pivotally connected to the second drive handle of the leg movable frame. One part of the two-screw system extends into the second push-up rod in a screwed state, and the other part extends through the second Moving the second shaft portion A sixth passive wheel meshed with the sixth driving wheel, and the sixth driving wheel is driven by the sixth driving wheel to drive the second screw to rotate, so that the second push rod is The linear displacement is used to drive the leg movable frame to lie flat or to sink downward; thereby, the first clutch of the control mechanism selects a manual or electric method to rotate the first power output shaft to drive the first The transmission lever rotates, and then drives the first push-up rod to linearly displace, which drives the back movable frame to lie flat or raise a tilt angle; further, the second clutch controls the second transmission lever and the first transmission The rod system is axially combined or separated, and the leg movable frame is controlled to lie flat or settle down to achieve that the first movable output shaft can synchronously drive the back movable frame and the leg to move. Shelf operation. The labor-saving transmission device of the nursing bed according to item 1 of the scope of patent application, further comprising a turn-over top support mechanism, which is longitudinally arranged on the bed frame body and is close to the back movable frame. The jacking mechanism includes: a third push-up rod with internal threads; a third screw extending into the third push-up rod in a screwed state, and a part of the third push-up rod extends out of the third push-up rod; A horizontal rod, which is pivoted on the support of the bed frame body with an eleventh shaft seat on both sides; a longitudinal rod, which is vertically arranged on and driven by the horizontal rod, and can be left or right Yaw, and a plurality of guide wheels are provided on the longitudinal rod; a second hand-cranked driving handle is set on a pipe body and can rotate 360 degrees, and drives the third provided in the third lift rod The screw rotates and is linearly displaced relative to the third push-up rod; a third drive handle whose upper end is fixed to the transverse rod, and whose bottom end is pivotally connected to the outer end of the third screw and braked by it, is used for The lateral rod is controlled to rotate, thereby controlling the longitudinal rod to yaw. The labor-saving transmission device of the nursing bed according to item 1 of the patent application scope, wherein the middle position of the operating lever is longitudinally extended by a shaft bolt, so that the operating lever uses the shaft bolt It can be pivoted back and forth for the axis, according to which the core is pulled, and then the second clutch device is controlled to be engaged or axially separated, and a positioning plate is fixed on the outer frame surface of the bed frame body. The positioning plate is provided with an L-shaped groove for the upper end of the operating lever to protrude, and can be moved or positioned in the L-shaped groove.