CN113143639B - Toilet bowl linkage mechanism of nursing bed - Google Patents

Toilet bowl linkage mechanism of nursing bed Download PDF

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Publication number
CN113143639B
CN113143639B CN202110657132.1A CN202110657132A CN113143639B CN 113143639 B CN113143639 B CN 113143639B CN 202110657132 A CN202110657132 A CN 202110657132A CN 113143639 B CN113143639 B CN 113143639B
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CN
China
Prior art keywords
cam
cover plate
connecting rod
urinal
translation
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Expired - Fee Related
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CN202110657132.1A
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Chinese (zh)
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CN113143639A (en
Inventor
王世正
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Ningbo Xinlei Medical Equipment Co ltd
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Ningbo Xinlei Medical Equipment Co ltd
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Priority to CN202110657132.1A priority Critical patent/CN113143639B/en
Publication of CN113143639A publication Critical patent/CN113143639A/en
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Publication of CN113143639B publication Critical patent/CN113143639B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05Parts, details or accessories of beds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/015Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/02Beds specially adapted for nursing; Devices for lifting patients or disabled persons with toilet conveniences, or specially adapted for use with toilets

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  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

The invention discloses a toilet bowl linkage mechanism of a nursing bed, which comprises a toilet bowl cover plate, a toilet bowl body and a urinal, wherein the toilet bowl cover plate is positioned below the surface of the nursing bed; the cover plate moving mechanism, the closestool lifting mechanism and the urinal translation mechanism are driven by the same driving mechanism and sequentially realize the following three actions: firstly, a toilet cover plate is lowered to the position below the surface of the nursing bed, and then the toilet cover plate is translated and avoided from a space below a cover plate hole; secondly, the closestool body ascends and extends out of the cover plate hole to the upper part of the surface of the nursing bed; and thirdly, translating the urinal to the lower part of the closestool body. The invention has the advantages of lower cost, stable operation of three actions of toilet cover plate displacement, toilet lifting and bed urinal translation based on a pure mechanical structure and saving space below the nursing bed.

Description

Toilet bowl linkage mechanism of nursing bed
Technical Field
The invention relates to the technical field of nursing beds, in particular to a closestool linkage mechanism of a nursing bed.
Background
With the development of science and technology, medical instruments are continuously updated and changed, nursing beds are also subject to one-generation and one-generation innovation, the existing nursing beds are generally power beds and are divided into electric or manual nursing beds which are developed and researched according to the bedridden life habits and treatment needs of patients, and for the bedridden patients, especially for the patients with poor self-care capability or no self-care capability, the nursing beds need to meet the daily activities of rising and lifting the back, lifting legs and putting legs, excreting and the like of the patients.
For an electric nursing bed, in order to realize daily excretion of a patient, three actions of toilet cover plate displacement, toilet lifting and bed pan translation are generally required to be set, at present, the three actions are generally required to be realized by three driving mechanisms such as motors or electric cylinders, the defect of the design is that the investment cost of the three driving mechanisms is high, the installation space below the nursing bed is limited, the three actions are driven by three independent mechanisms, the sequence of the three actions including time intervals depends on an electric control system to a great extent, and if the electric control system breaks down, the nursing bed is probably not normally used.
Therefore, it is urgently needed to develop a mechanism which can make three actions of toilet cover plate displacement, toilet lifting and urinal translation be successively linked by means of one drive so as to effectively reduce drive cost and save space under the nursing bed.
Disclosure of Invention
The invention aims to provide a toilet bowl linkage mechanism of a nursing bed. The multifunctional toilet has the advantages of low cost, capability of stably operating three actions of toilet cover plate displacement, toilet lifting and bed urinal translation based on a pure mechanical structure and saving space below a nursing bed.
The technical scheme of the invention is as follows: a toilet bowl linkage mechanism of a nursing bed comprises a toilet bowl cover plate, a toilet bowl body and a toilet bowl, wherein the toilet bowl cover plate, the toilet bowl body and the toilet bowl are positioned below a surface of the nursing bed; the toilet bowl comprises a cover plate moving mechanism, a toilet bowl lifting mechanism and a toilet bowl translation mechanism, wherein the cover plate moving mechanism, the toilet bowl lifting mechanism and the toilet bowl translation mechanism are respectively connected with a first cam, a second cam and a third cam, the first cam, the second cam and the third cam are driven by the same driving mechanism, the driving mechanism is connected with a transmission main shaft, a first swing arm, a second swing arm and a third swing arm which can drive the first cam, the second cam and the third cam to rotate in sequence are arranged on the transmission main shaft, and the cover plate moving mechanism, the toilet bowl lifting mechanism and the toilet bowl translation mechanism are respectively arranged under the rotary driving of the first cam, the second cam and the third cam to sequentially realize the following three steps of actions:
firstly, a toilet cover plate is lowered to the position below the surface of the nursing bed, and then the toilet cover plate is translated and avoided from a corresponding space below a cover plate hole;
secondly, the closestool body ascends and extends out of the cover plate hole to the upper part of the bed surface of the nursing bed;
and thirdly, translating the urinal to the lower part of the closestool body.
Compared with the prior art, the invention has the beneficial effects that: the cover plate moving mechanism, the closestool lifting mechanism and the urinal translation mechanism are driven by different cams, the swing arms which can sequentially drive the cams along with the rotation of the transmission main shaft are arranged on the transmission main shaft to realize three actions of closestool cover plate displacement, closestool lifting and urinal translation, and the three actions are linked by a pure mechanical structure, so that the electric control fault has less influence on the sequence of the three actions, namely the stability of the three actions is higher.
In the toilet bowl linkage mechanism of the nursing bed, the driving mechanism comprises a worm gear and worm reduction motor, a transmission main shaft is connected with the output end of the worm gear and worm reduction motor, a first linkage bearing table, a second linkage bearing table and a third linkage bearing table are arranged on the transmission main shaft in a penetrating manner, the first linkage bearing table, the second linkage bearing table and the third linkage bearing table are respectively and rotationally connected with a first cam, a second cam and a third cam, circular arc indent and clamping grooves are respectively arranged on the first cam, the second cam and the third cam, a first month cone, a second month cone and a third month cone which are embedded into the circular arc indent on the first cam, the second cam and the third cam are respectively connected on the transmission main shaft, the first swing arm, the second swing arm and the third swing arm are respectively arranged on one side of the first month cone, the second month cone and the third month cone and are fixedly connected with the transmission main shaft, the first swing arm, the second swing arm and the third swing arm are all provided with swing pin shafts, the first crescent gear, the second crescent gear and the third crescent gear are all provided with crescent notches, and the swing pin shafts are opposite to the crescent notches; along with the rotation of the transmission main shaft, the swing pin shafts on the first swing arm, the second swing arm and the third swing arm are sequentially embedded into the clamping grooves of the first cam, the second cam and the third cam and sequentially drive the first cam, the second cam and the third cam to rotate.
In the toilet bowl linkage mechanism of the nursing bed, in the operation process from the first action to the third action, the swing pin shaft on the first swing arm is firstly embedded into the clamping groove of the first cam to drive the first cam to rotate, after the main shaft to be driven rotates for 90 degrees, the swing pin shaft on the first swing arm is separated from the clamping groove of the first cam, the swing pin shaft on the second swing arm is embedded into the clamping groove of the second cam to drive the second cam to rotate, after the main shaft to be driven rotates for 90 degrees again, the swing pin shaft on the second swing arm is separated from the clamping groove of the second cam, the swing pin shaft on the third swing arm is embedded into the clamping groove of the third cam to drive the third cam to rotate, and after the main shaft to be driven rotates for 90 degrees again, the whole process from the first action to the third action is completed.
In the toilet linkage mechanism of the nursing bed, the cover plate moving mechanism comprises a cover plate bracket for supporting a toilet cover plate, two sides of the cover plate bracket are provided with fixed side plates, a cover plate lifting chute is arranged on each fixed side plate, two ends of the cover plate bracket are connected with guide wheels, and the guide wheels are embedded into the cover plate lifting chutes; an upper cover plate connecting rod and an upper cover plate clearance connecting rod are respectively hinged below the toilet cover plate, the lower end part of the upper cover plate connecting rod and the lower end part of the upper cover plate clearance connecting rod are respectively hinged on a cover plate middle connecting rod, one end of the cover plate middle connecting rod, which is connected with the upper cover plate clearance connecting rod, is hinged with a cover plate lower clearance connecting rod, one end of the cover plate middle connecting rod, which is connected with the upper cover plate connecting rod, is hinged with a cover plate lower clearance connecting rod, and the lower end part of the cover plate lower connecting rod and the lower end part of the cover plate lower clearance connecting rod are respectively hinged on a base plate; four-point connecting lines of hinge points at two ends of the connecting rod on the cover plate and hinge points at two ends of the clearance connecting rod on the cover plate form a parallelogram; four-point connecting lines of hinge points at two ends of the cover plate lower connecting rod and hinge points at two ends of the cover plate lower clearance connecting rod form a parallelogram; the cover plate lower connecting rod is rotatably connected with a cover plate moving pull rod, and the other end of the cover plate moving pull rod is hinged with the first cam.
In the toilet bowl linkage mechanism of the nursing bed, the cover plate lifting sliding groove is in an L shape, and the L-shaped folding angle of the cover plate lifting sliding groove is transited by a section of straight line.
In the toilet linkage mechanism of the nursing bed, the upper cover plate clearance connecting rod is bent and deformed towards the side where the upper cover plate connecting rod is located, and the lower cover plate clearance connecting rod is bent and deformed towards the side where the lower cover plate connecting rod is located.
Among the aforementioned closestool link gear of nursing bed, closestool elevating system includes closestool mounting platform, closestool mounting platform below is connected with the lower carriage, the lower carriage with be equipped with the connecting plate between the closestool mounting platform, the connecting plate with it goes up the connecting rod to rotate to be connected with the closestool lift between the closestool mounting platform, the connecting plate with it goes up the connecting rod to rotate to be connected with closestool lift between the lower carriage, the connecting plate rotates and is connected with closestool lift pull rod, the other end and the second cam of closestool lift pull rod are articulated mutually.
In the toilet bowl linkage mechanism of the nursing bed, the toilet bowl lifting upper connecting rod and the toilet bowl lifting lower connecting rod are respectively hinged to two points on the connecting plate through the upper connecting rod gear and the lower connecting rod gear, and the upper connecting rod gear is meshed with the lower connecting rod gear.
In the toilet bowl linkage mechanism of the nursing bed, the bed urinal translation mechanism comprises a translation cabin, a bed pan translation bracket is arranged below the translation cabin, bed pan translation guide rails are arranged on two sides of the bed pan translation bracket, the bed urinal translation guide rail is provided with a bed urinal translation chute, both ends of the bed urinal translation bracket are connected with guide wheels embedded in the bed urinal translation chute, the bed urinal translation support is connected with a bed urinal pull rod, the other end of the bed urinal pull rod is hinged with a bed urinal translation connecting rod, a bed urinal translation wheel is coaxially arranged at the hinged position of the bed urinal translation connecting rod and the bed urinal pull rod, a bed urinal translation guide groove is arranged at one side of the bed urinal translation wheel, the urinal translation wheel is embedded into the urinal translation guide groove, the middle of the urinal translation connecting rod is hinged with a urinal translation middle pull rod, and the other end of the urinal translation middle pull rod is hinged with the third cam.
In the toilet bowl linkage mechanism of the nursing bed, the end part of the bed urinal translation connecting rod is hinged with the bed urinal head raising pull rod, and the bed urinal head raising pull rod is hinged with the fixed support.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a cover plate moving mechanism;
FIG. 3 is a schematic view of the structure of the stationary side plate;
FIG. 4 is a schematic view of a double parallelogram linkage of the lid moving mechanism;
FIG. 5 is a schematic structural view of a toilet lifting mechanism;
FIG. 6 is a schematic view of a linkage connection structure of the toilet lifting mechanism;
FIG. 7 is a schematic structural view of a urinal translation mechanism;
FIG. 8 is a schematic view of a dynamic engagement process of the first cam with the first swing arm;
FIG. 9 is a schematic view of a nursing bed according to an embodiment of the present invention;
FIG. 10 is a schematic view showing the state of engagement of the cams with the swing arms in the state of FIG. 1;
FIG. 11 is a schematic view of another view angle state of FIG. 10;
FIG. 12 is a schematic view showing the linkage of the cover plate moving mechanism, the toilet lifting mechanism and the urinal translation mechanism when the toilet body is about to ascend;
FIG. 13 is a schematic view showing the state of engagement of the cams with the swing arms in the state of FIG. 12;
FIG. 14 is a schematic view of FIG. 13 from another perspective;
FIG. 15 is a schematic view showing the linkage of the cover plate moving mechanism, the toilet lifting mechanism and the urinal translation mechanism when the urinal is about to translate;
FIG. 16 is a schematic view showing the state of engagement of the cams with the swing arms in the state of FIG. 15;
FIG. 17 is a schematic view of the other view state of FIG. 16;
FIG. 18 is a schematic view showing the linkage state of the cover plate moving mechanism, the toilet lifting mechanism and the urinal translation mechanism when the urinal is translated below the toilet body;
FIG. 19 is a schematic view showing the state of engagement of the cams with the swing arms in the state of FIG. 18;
fig. 20 is a schematic view of fig. 19 from another viewing angle.
Reference numerals: 1. a bed frame; 2. a bed surface assembly; 3. an upper body panel; 4. a lower body panel; 5. a chassis; 6. a toilet lid plate; 7. cover plate holes; 8. a toilet body; 9. a urinal; 10. a cover plate moving mechanism; 20. a toilet lifting mechanism; 30. a urinal translation mechanism; 41. a hip plate; 42. a leg plate; 43. a foot plate; 50. a drive mechanism; 60. a transmission main shaft; 101. a cover plate bracket; 102. fixing the side plate; 103. a cover plate lifting chute; 104. a guide wheel; 105. a connecting rod is arranged on the cover plate; 106. a clearance connecting rod is arranged on the cover plate; 107. a connecting rod in the cover plate; 108. a cover plate lower connecting rod; 109. a cover plate lower clearance connecting rod; 110. a substrate; 111. a cover plate moving pull rod; 201. a toilet mounting platform; 202. a lower bracket; 203. a connecting plate; 204. a toilet lifting upper connecting rod; 205. a toilet lifting lower connecting rod; 206. a toilet lifting pull rod; 207. an upper link gear; 208. a lower link gear; 301. a translation cabin; 302. a bed pan translation bracket; 303. a bed urinal translation guide rail; 304. a urinal translation chute; 305. a guide wheel; 306. a urinal pull rod; 307. a urinal translation connecting rod; 308. a urinal translation wheel; 309. the urinal translation guide groove; 310. a middle pull rod for translation of the urinal; 311. a head raising pull rod of the urinal; 312. a fixed support; 401. a first cam; 402. a second cam; 403. a third cam; 404. a first swing arm; 405. a second swing arm; 406. a third swing arm; 407. a first linkage bearing table; 408. a second linkage bearing table; 409. a third linkage bearing table; 410. the arc is concave; 411. a card slot; 412. a first crescent cone; 413. a second February cone; 414. a third crescent cone; 415. swinging the pin shaft; 416. a crescent notch; 501. a worm gear speed reducing motor.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
The embodiment is as follows: a toilet bowl linkage mechanism of a nursing bed is structurally shown in figures 1 to 8, the invention is applied to a nursing bed with three actions of toilet bowl cover plate 6 displacement, toilet bowl lifting and moving of a urinal 9, the nursing bed comprises a bed frame 1, a bed surface assembly 2 is covered on the bed frame 1, the bed surface assembly 2 comprises an upper body plate 3 and a lower body plate 4, a chassis 5 is arranged at the bottom of the bed frame 1, a toilet bowl cover plate 6 is arranged between the chassis 5 and the lower body plate 4, a cover plate hole 7 is arranged on the lower body plate 4, the toilet bowl cover plate 6 is embedded in the cover plate hole 7, the toilet bowl cover plate 6 is connected with a cover plate moving mechanism 10, the cover plate moving mechanism 10 comprises a cover plate support 101 for supporting the toilet bowl cover plate 6, fixed side plates 102 are arranged at two sides of the cover plate support 101, a cover plate lifting chute 103 is arranged on the fixed side plates 102, guide wheels 104 are connected at two ends of the cover plate support 101, and the guide wheels 104 are embedded in the cover plate lifting chute 103, the cover plate lifting sliding groove 103 is L-shaped, and the L-shaped folding angle of the cover plate lifting sliding groove 103 is transited by a section of straight line.
Preferably, a cover upper connecting rod 105 and a cover upper clearance connecting rod 106 are respectively hinged below the toilet cover 6, the lower end of the cover upper connecting rod 105 and the lower end of the cover upper clearance connecting rod 106 are respectively hinged on a cover middle connecting rod 107, the cover middle connecting rod 107 is respectively hinged with a cover lower connecting rod 108 and a cover lower clearance connecting rod 109 downwards, and the lower end of the cover lower connecting rod 108 and the lower end of the cover lower clearance connecting rod 109 are respectively hinged on a base plate 110 fixed on the chassis 5; a parallelogram is formed by four-point connecting lines of hinge points at two ends of the connecting rod 105 on the cover plate and hinge points at two ends of the connecting rod 106 in the clearance mode on the cover plate; the four-point connecting line of the hinge point at the two ends of the cover plate lower connecting rod 108 and the hinge point at the two ends of the cover plate lower clearance connecting rod 109 forms a parallelogram, and the frame connecting structure of the upper parallelogram and the lower parallelogram enables the toilet cover plate 6 to run more stably in the processes of vertical descending and horizontal translation.
Preferably, the upper cover clearance link 106 is bent and deformed toward the upper cover link 105, and the lower cover clearance link 109 is bent and deformed toward the lower cover link 108, although neither the upper cover clearance link 106 nor the lower cover clearance link 109 is linear, the end points are strictly ensured to be located at four points of the parallelogram, and the bent and deformed portions of the upper cover clearance link 106 and the lower cover clearance link 109 can provide a larger space for installing other components, and can avoid other temporarily stationary components in the displacement process of the toilet cover 6, so as to avoid interference in a narrow space below the nursing bed.
Preferably, one end of the cover middle connecting rod 107 connected with the cover upper clearance connecting rod 106 is hinged to the cover lower connecting rod 108, and one end of the cover middle connecting rod 107 connected with the cover upper connecting rod 105 is hinged to the cover lower clearance connecting rod 109, so that the bending deformation of the cover upper clearance connecting rod 106 and the cover lower clearance connecting rod 109 can be utilized to the maximum extent.
Preferably, the cover plate lower connecting rod 108 is rotatably connected with a cover plate moving pull rod 111, the cover plate moving pull rod 111 is connected with a power source, the cover plate moving pull rod 111 is pulled under the driving of the power source, so that the cover plate moving pull rod is transmitted to the cover plate lower connecting rod 108, and finally the upper and lower double-parallelogram structure moves under the guiding action of the guide wheel 104 and the cover plate lifting chute 103.
Preferably, a toilet body 8 and a urinal 9 are further arranged between the chassis 5 and the lower body plate 4, the toilet body 8 is connected with a toilet lifting mechanism 20, and the urinal 9 is connected with a urinal translation mechanism 30; the cover plate moving mechanism 10, the toilet bowl lifting mechanism 20 and the urinal translation mechanism 30 are respectively connected with a first cam 401, a second cam 402 and a third cam 403, the first cam 401, the second cam 402 and the third cam 403 are driven by the same driving mechanism 50, the driving mechanism 50 is connected with a transmission main shaft 60, a first swing arm 404, a second swing arm 405 and a third swing arm 406 which can sequentially drive the first cam 401, the second cam 402 and the third cam 403 to rotate are arranged on the transmission main shaft 60, and the cover plate moving mechanism 10, the toilet bowl lifting mechanism 20 and the urinal translation mechanism 30 sequentially realize the following three actions under the rotation driving of the first cam 401, the second cam 402 and the third cam 403:
firstly, the toilet cover plate 6 descends to the position below the bed surface of the nursing bed, and then the toilet cover plate is translated to avoid a corresponding space below the cover plate hole 7;
secondly, the closestool body 8 ascends and extends out of the cover plate hole 7 to the upper part of the surface of the nursing bed;
and thirdly, translating the urinal 9 to the position below the closestool body 8.
The bending deformation part of the cover lower clearance connecting rod 109 provides space for the installation of the toilet body 8.
The cover moving lever 111 is hinged to the first cam 401.
Preferably, the driving mechanism 50 includes a worm and gear reduction motor 501, an output end of the worm and gear reduction motor 501 is connected to the transmission spindle 60, a first linkage bearing table 407, a second linkage bearing table 408 and a third linkage bearing table 409 penetrate through the transmission spindle 60, the first linkage bearing table 407, the second linkage bearing table 408 and the third linkage bearing table 409 are respectively rotatably connected to the first cam 401, the second cam 402 and the third cam 403, the first cam 401, the second cam 402 and the third cam 403 are respectively provided with an arc indent 410 and a slot 411, the transmission spindle 60 is respectively connected to a first crescent 412, a second crescent 413 and a third crescent 414 which are embedded into the arc indent 410 of the first cam 401, the second cam 402 and the third cam 403, the first swing arm 404, the second swing arm 405 and the third swing arm 406 are respectively arranged at one side of the first crescent 412, the second crescent 413 and the third swing arm 414 and are fixedly connected to the transmission spindle 60, swing pins 415 are arranged on the first swing arm 404, the second swing arm 405 and the third swing arm 406, crescent notches 416 are arranged on the first crescent 412, the second crescent 413 and the third crescent 414, and the swing pins 415 are opposite to the positions of the crescent notches 416; with the rotation of the transmission main shaft 60, the swing pin 415 on the first swing arm 404, the second swing arm 405 and the third swing arm 406 is sequentially embedded into the clamping groove 411 of the first cam 401, the second cam 402 and the third cam 403, and sequentially drives the first cam 401, the second cam 402 and the third cam 403 to rotate.
Two arc indents 410 which are axially symmetrically arranged are arranged outside the clamping groove 411 of the first cam 401, the second cam 402 and the third cam 403, one of the two arc indents 410 is attached to the outer circumference of each crescent wheel, along with the rotation of the crescent wheels, the swing pin 415 on the first swing arm 404, the second swing arm 405 and the third swing arm 406 sequentially enters the clamping groove 411 to drive the first cam 401, the second cam 402 and the third cam 403, during the period that the swing pin 415 enters the clamping groove 411, because the swing pin 415 is over against the crescent notch 416 of each crescent wheel, the outer convex part of the clamping groove 411 slides into the crescent notch 416 along with the rotation of each crescent wheel and then leaves the crescent notch 416, at the moment, the swing pin 415 synchronously leaves the clamping groove 411, at the moment, each crescent wheel is attached to the arc indents 410 on the other side of the first cam 401, the second cam 402 and the third cam 403, enters the clamping groove 411 from the swing pin 415 to leave the clamping groove 411, the sequential driving of the cams is realized.
Preferably, in the operation process from the first action to the third action, the swing pin 415 on the first swing arm 404 is firstly inserted into the slot 411 of the first cam 401 to drive the first cam 401 to rotate, after the main shaft 60 to be driven rotates by 90 °, the swing pin 415 on the first swing arm 404 is pulled out from the slot 411 of the first cam 401, the swing pin 415 on the second swing arm 405 is inserted into the slot 411 of the second cam 402 to drive the second cam 402 to rotate, after the main shaft 60 to be driven rotates by 90 ° again, the swing pin 415 on the second swing arm 405 is pulled out from the slot 411 of the second cam 402, the swing pin 415 on the third swing arm 406 is inserted into the slot 411 of the third cam 403 to drive the third cam 403 to rotate, and after the main shaft 60 to be driven rotates by 90 ° again, the whole process from the first action to the third action is completed.
Referring to fig. 8, which is a schematic diagram of a dynamic matching process of the first cam 401 and the first swing arm 404, the first swing arm 404 rotates 90 °, and the swing pin 415 on the first swing arm 404 goes from entering the slot 411 to leaving the slot 411.
Preferably, the lower body panel 4 includes a hip panel 41, a leg panel 42, and a foot panel 43, wherein the hip panel 41 is hinged to the leg panel 42, and the leg panel 42 is hinged to the foot panel 43.
The bending deformation position of the cover plate upper clearance connecting rod 106 is set to avoid the space where the electric push rod 44 is installed in the movement process of the cover plate upper clearance connecting rod 106, so as to avoid generating interference.
Preferably, the toilet lifting mechanism 20 includes a toilet mounting platform 201, a lower bracket 202 is connected below the toilet mounting platform 201, a connecting plate 203 is arranged between the lower bracket 202 and the toilet mounting platform 201, a toilet lifting upper connecting rod 204 is rotatably connected between the connecting plate 203 and the toilet mounting platform 201, a toilet lifting lower connecting rod 205 is rotatably connected between the connecting plate 203 and the lower bracket 202, the connecting plate 203 is rotatably connected with a toilet lifting pull rod 206, the other end of the toilet lifting pull rod 206 is hinged to the second cam 402, and when the second cam 402 rotates, the toilet lifting mechanism 20 is driven to operate, so that the toilet body 8 vertically ascends.
Preferably, the lower bracket 202, the connecting plate 203, the toilet lifting upper connecting rod 204 and the toilet lifting lower connecting rod 205 are arranged on both sides of the toilet mounting platform 201, that is, the two second cams 402 are arranged on the transmission main shaft 60 and are respectively connected with a toilet lifting pull rod 206, so as to ensure that the two sides of the toilet body 8 are stressed in a balanced manner when lifted.
Preferably, the toilet lifting upper connecting rod 204 and the toilet lifting lower connecting rod 205 are hinged to two points on the connecting plate 203 through an upper connecting rod gear 207 and a lower connecting rod gear 208 respectively, and the upper connecting rod gear 207 is meshed with the lower connecting rod gear 208, so that the gears are beneficial to locking the angle and preventing slipping, the starting and matching angle is large, the lifting is faster, timely control and overcurrent protection are facilitated, the bilateral symmetry degree of two sides of the toilet mounting platform 201 can be higher during lifting, and real horizontal lifting is achieved.
Preferably, the chamber pot translation mechanism 30 comprises a translation cabin 301, a chamber pot translation bracket 302 is arranged below the translation cabin 301, chamber pot translation guide rails 303 are arranged on two sides of the chamber pot translation bracket 302, a chamber pot translation chute 304 is arranged on the chamber pot translation guide rails 303, guide wheels 305 embedded in the chamber pot translation chute 304 are connected at two ends of the chamber pot translation bracket 302, a chamber pot pull rod 306 is connected to the chamber pot translation bracket 302, a chamber pot translation connecting rod 307 is hinged to the other end of the chamber pot pull rod 306, a chamber pot translation wheel 308 is coaxially arranged at the hinged position of the chamber pot translation connecting rod 307 and the chamber pot pull rod 306, a chamber pot translation guide groove 309 is arranged on one side of the chamber pot translation wheel 308, the chamber pot translation wheel 308 is embedded in the chamber pot translation guide groove 309, a chamber pot translation middle pull rod 310 is hinged to the middle portion of the chamber pot translation connecting rod 307, the other end of the chamber pot translation pull rod 310 is hinged to a third cam 403, and when the third cam 403 rotates, the chamber pot translation mechanism 30 is driven to operate, the urinal 9 is translated under the toilet body 8.
Preferably, the end of the chamber pot translation connecting rod 307 is hinged with a chamber pot head-up pull rod 311, and the chamber pot head-up pull rod 311 is hinged with a fixed support 312.
Preferably, a distribution box is arranged below the upper body plate 3, and a water tank is arranged below the upper body plate 3.
Preferably, a round hole is arranged on the chassis 5 at the position opposite to the closestool body 8.
The working principle of the invention is as follows: the invention is carried out around three actions, namely, the toilet cover plate 6 is displaced, the toilet body 8 is lifted and the urinal 9 is translated, when a patient wants to excrete, the three actions are sequentially carried out under the action of the driving mechanism 50, the worm gear speed reducing motor 501 is started to drive the transmission main shaft 60 to rotate, and the first swing arm 404, the second swing arm 405 and the third swing arm 406 arranged on the transmission main shaft 60 synchronously rotate.
Displacement of the toilet lid 6: the initial state is shown in fig. 1, the matching state of each cam and each swing arm is shown in fig. 10 and fig. 11, at this time, the swing pin 415 on the first swing arm 404 is about to be embedded into the slot 411 of the first cam 401 to drive the first cam 401 to rotate, after the swing pin 415 on the first swing arm 404 is embedded into the slot 411 of the first cam 401, the first cam 401 rotates, the first cam 401 drives the connected cover plate moving pull rod 111 to move, the cover plate moving pull rod 111 acts on the cover plate lower connecting rod 108, so that the double parallelogram structure formed by the cover plate upper connecting rod 105, the cover plate upper clearance connecting rod 106, the cover plate lower connecting rod 108 and the cover plate lower clearance connecting rod 109 moves under the guiding action of the guide wheel 104 and the cover plate lifting chute 103, because the cover plate lifting chute 103 is L-shaped, the toilet cover plate 6 first makes vertical downward movement, the toilet cover plate 6 descends to the lower part of the nursing bed surface, and then makes horizontal translational movement after the transition at the break angle, the corresponding space below the cover plate hole 7 is avoided, the swing pin 415 on the first swing arm 404 just leaves the slot 411 of the first cam 401 after the two actions are completed, and the first cam 401 stops rotating, which is shown in fig. 12.
The toilet body 8 rises: the initial state is shown in fig. 12, at this time, the matching state of each cam and each swing arm is shown in fig. 13 and fig. 14, at this time, the swing pin 415 on the second swing arm 405 is about to be inserted into the slot 411 of the second cam 402, to drive the second cam 402 to rotate, after the swing pin 415 on the second swing arm 405 is inserted into the slot 411 of the second cam 402, the second cam 402 rotates, the second cam 402 drives the connected toilet lifting pull rod 206 to move, the toilet lifting pull rod 206 acts on the connecting plate 203 to drive the connecting plate 203 to move, at this time, the angle between the toilet lifting upper link 204 and the toilet lifting lower link 205 is expanded, the toilet lifting upper link 204 drives the toilet mounting platform 201 and the toilet body 8 to synchronously move vertically and upwardly from the cover plate hole 7 to the upper side of the nursing bed, after the above actions, the swing pin 415 on the second swing arm 405 just leaves the slot 411 of the second cam 402, the second cam 402 stops rotating, see fig. 15.
The urinal 9 translates: the initial state is shown in fig. 15, at this time, the matching state of each cam and each swing arm is shown in fig. 16 and fig. 17, at this time, the swing pin 415 on the third swing arm 406 is about to be inserted into the slot 411 of the third cam 403, to drive the third cam 403 to rotate, after the swing pin 415 on the third swing arm 406 is inserted into the slot 411 of the third cam 403, the third cam 403 rotates, the third cam 403 drives the connected urinal pan middle pull rod 310 to move, the urinal middle pull rod 310 drives the urinal translation connecting rod 307 to move, the urinal translation connecting rod 307 drives the urinal pull rod 306 to move, finally the urinal translation bracket 302, the translation cabin 301 and the urinal 9 are driven to synchronously perform translation movement, the urinal 9 translates to the lower part of the toilet bowl body 8 to receive excrement, after the above movement, the swing pin 415 on the third swing arm 406 just leaves the slot 411 of the third cam 403, the third cam 403 stops rotating, referring to fig. 18, the state of engagement of the cams with the swing arms at this time is shown in fig. 19 and 20.
When the patient finishes excretion, the worm gear speed reducing motor 501 of the driving mechanism 50 rotates reversely to drive the transmission main shaft 60 to rotate reversely, so as to drive the third cam 403, the second cam 402 and the first cam 401 to rotate in sequence, and the resetting of the urinal 9, the resetting of the toilet body 8 and the resetting of the toilet cover plate 6 are realized.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above are only preferred embodiments of the present invention, and the scope of the present invention is not limited to the above examples, and all technical solutions that fall under the spirit of the present invention belong to the scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (8)

1. The utility model provides a nursing bed's closestool link gear, is equipped with on the nursing bed surface with closestool apron (6) complex apron hole, its characterized in that including closestool apron (6), closestool body (8) and the chamber pot (9) that are located nursing bed surface below: the toilet cover plate (6) is connected with a cover plate moving mechanism (10), the toilet body (8) is connected with a toilet lifting mechanism (20), and the urinal (9) is connected with a urinal translation mechanism (30); the cover plate moving mechanism (10), the closestool lifting mechanism (20) and the urinal translation mechanism (30) are respectively connected with a first cam (401), a second cam (402) and a third cam (403), the first cam (401), the second cam (402) and the third cam (403) are driven by the same driving mechanism (50), the driving mechanism (50) is connected with a transmission main shaft (60), a first swing arm (404), a second swing arm (405) and a third swing arm (406) which can drive a first cam (401), a second cam (402) and a third cam (403) to rotate in sequence are arranged on the transmission main shaft (60), the cover plate moving mechanism (10), the closestool lifting mechanism (20) and the urinal translation mechanism (30) respectively realize the following three actions under the rotary driving of the first cam (401), the second cam (402) and the third cam (403) in sequence:
firstly, a toilet cover plate (6) descends to the lower part of the surface of the nursing bed, and then moves horizontally to avoid a corresponding space below a cover plate hole;
secondly, the closestool body (8) ascends and extends out of the cover plate hole to the upper part of the surface of the nursing bed;
the third action is that the urinal (9) translates to the lower part of the closestool body (8);
actuating mechanism (50) include worm gear motor (501), transmission main shaft (60) is connected to the output of worm gear motor (501), wear to be equipped with first linkage bearing platform (407), second linkage bearing platform (408) and third linkage bearing platform (409) on transmission main shaft (60), first linkage bearing platform (407), second linkage bearing platform (408) and third linkage bearing platform (409) rotate with first cam (401), second cam (402) and third cam (403) respectively and are connected, all be equipped with circular arc indent (410) and draw-in groove (411) on first cam (401), second cam (402) and third cam (403), be connected with respectively on transmission main shaft (60) and imbed first cam (401), second cam (402) and third cam (403) on first month cone (412) of indent (410), first month cone (412) of circular arc (410), The first swing arm (404), the second swing arm (405) and the third swing arm (406) are respectively arranged on one side of the first crescent (412), one side of the second crescent (413) and one side of the third crescent (414) and are fixedly connected with the transmission spindle (60), swing pins (415) are respectively arranged on the first swing arm (404), the second swing arm (405) and the third swing arm (406), crescent notches (416) are respectively arranged on the first crescent (412), the second crescent (413) and the third crescent (414), and the swing pins (415) are just opposite to the positions of the crescent notches (416); with the rotation of the transmission main shaft (60), swing pin shafts (415) on the first swing arm (404), the second swing arm (405) and the third swing arm (406) are sequentially embedded into clamping grooves (411) of the first cam (401), the second cam (402) and the third cam (403), and sequentially drive the first cam (401), the second cam (402) and the third cam (403) to rotate;
in the operation process from the first action to the third action, a swing pin (415) on a first swing arm (404) is firstly embedded into a clamping groove (411) of a first cam (401) to drive the first cam (401) to rotate, after a main shaft (60) to be driven rotates for 90 degrees, a swing pin (415) on the first swing arm (404) is separated from the clamping groove (411) of the first cam (401), a swing pin (415) on a second swing arm (405) is embedded into the clamping groove (411) of a second cam (402) to drive the second cam (402) to rotate, after the main shaft (60) to be driven rotates for 90 degrees again, a swing pin (415) on the second swing arm (405) is separated from the clamping groove (411) of the second cam (402), a swing pin (415) on a third swing arm (406) is embedded into a clamping groove (411) of a third cam (403) to drive the third cam (403) to rotate, and after the main shaft (60) to be driven rotates for 90 degrees again, and finishing the whole process from the first action to the third action.
2. A toilet linkage for a care bed as claimed in claim 1, wherein: the cover plate moving mechanism (10) comprises a cover plate support (101) for supporting the toilet cover plate (6), two sides of the cover plate support (101) are provided with fixed side plates (102), a cover plate lifting sliding groove (103) is formed in each fixed side plate (102), two ends of the cover plate support (101) are connected with guide wheels (104), and the guide wheels (104) are embedded into the cover plate lifting sliding grooves (103); an upper cover connecting rod (105) and an upper cover clearance connecting rod (106) are respectively hinged below the toilet cover plate (6), the lower end part of the upper cover connecting rod (105) and the lower end part of the upper cover clearance connecting rod (106) are respectively hinged on a cover plate middle connecting rod (107), one end of the cover plate middle connecting rod (107) connected with the upper cover clearance connecting rod (106) is hinged with a cover plate lower connecting rod (108), one end of the cover plate middle connecting rod (107) connected with the upper cover connecting rod (105) is hinged with a cover plate lower clearance connecting rod (109), and the lower end part of the cover plate lower connecting rod (108) and the lower end part of the cover plate lower clearance connecting rod (109) are respectively hinged on a base plate (110); four-point connecting lines of hinge points at two ends of the connecting rod (105) on the cover plate and hinge points at two ends of the clearance connecting rod (106) on the cover plate form a parallelogram; four-point connecting lines of hinge points at two ends of the cover plate lower connecting rod (108) and hinge points at two ends of the cover plate lower clearance connecting rod (109) form a parallelogram; the cover plate lower connecting rod (108) is rotatably connected with a cover plate moving pull rod (111), and the other end of the cover plate moving pull rod (111) is hinged to the first cam (401).
3. A toilet linkage for a care bed as claimed in claim 2, wherein: the cover plate lifting sliding groove (103) is L-shaped, and the L-shaped folding angle of the cover plate lifting sliding groove (103) is transited by a section of straight line.
4. A toilet linkage for a care bed as claimed in claim 2, wherein: the upper cover plate clearance connecting rod (106) bends and deforms towards the side where the upper cover plate connecting rod (105) is located, and the lower cover plate clearance connecting rod (109) bends and deforms towards the side where the lower cover plate connecting rod (108) is located.
5. A toilet linkage for a care bed as claimed in claim 1, wherein: closestool elevating system (20) are including closestool mounting platform (201), closestool mounting platform (201) below is connected with lower carriage (202), lower carriage (202) with be equipped with connecting plate (203) between closestool mounting platform (201), connecting plate (203) with it goes up connecting rod (204) to rotate to be connected with the closestool between closestool mounting platform (201), connecting plate (203) with it goes up connecting rod (205) to rotate to be connected with closestool lift between lower carriage (202), connecting plate (203) rotate to be connected with closestool lift pull rod (206), the other end and second cam (402) of closestool lift pull rod (206) are articulated mutually.
6. A toilet linkage for a care bed as claimed in claim 5, wherein: the toilet bowl lifting upper connecting rod (204) and the toilet bowl lifting lower connecting rod (205) are hinged to two points on the connecting plate (203) through an upper connecting rod gear (207) and a lower connecting rod gear (208) respectively, and the upper connecting rod gear (207) is meshed with the lower connecting rod gear (208).
7. A toilet linkage for a care bed as claimed in claim 1, wherein: the bed urinal translation mechanism (30) comprises a translation cabin (301), a bed urinal translation support (302) is arranged below the translation cabin (301), bed urinal translation guide rails (303) are arranged on two sides of the bed urinal translation support (302), a bed urinal translation sliding groove (304) is arranged on the bed urinal translation guide rails (303), two ends of the bed urinal translation support (302) are connected with guide wheels (305) embedded in the bed urinal translation sliding groove (304), the bed urinal translation support (302) is connected with a bed urinal pull rod (306), the other end of the bed urinal pull rod (306) is hinged with a bed urinal translation connecting rod (307), a bed urinal translation wheel (308) is coaxially arranged at the hinged position of the bed urinal translation connecting rod (307) and the bed urinal pull rod (306), a bed urinal translation guide groove (309) is arranged on one side of the bed urinal translation wheel (308), and the bed urinal translation wheel (308) is embedded in the bed urinal translation guide groove (309), the middle part of the urinal translation connecting rod (307) is hinged with a urinal translation middle pull rod (310), and the other end of the urinal translation middle pull rod (310) is hinged with a third cam (403).
8. A toilet linkage for a care bed as claimed in claim 7, wherein: the end part of the bed urinal translation connecting rod (307) is hinged with a bed urinal head-raising pull rod (311), and the bed urinal head-raising pull rod (311) is hinged with a fixed support (312).
CN202110657132.1A 2021-06-11 2021-06-11 Toilet bowl linkage mechanism of nursing bed Expired - Fee Related CN113143639B (en)

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CN202110657132.1A CN113143639B (en) 2021-06-11 2021-06-11 Toilet bowl linkage mechanism of nursing bed

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Publication number Priority date Publication date Assignee Title
CN113440353A (en) * 2021-08-06 2021-09-28 浙江港都电子有限公司 Nursing bed

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JP2000279456A (en) * 1999-03-30 2000-10-10 Kimura Giken:Kk Bed system
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CN110893138A (en) * 2019-12-23 2020-03-20 四川机器兄弟科技有限公司 Nursing bed
CN111067732A (en) * 2019-12-31 2020-04-28 宁波欣雷医疗设备有限公司 Intelligent nursing bed
CN211244202U (en) * 2019-12-31 2020-08-14 宁波欣雷医疗设备有限公司 Toilet bowl and urinal mechanism for nursing bed
CN211356364U (en) * 2019-12-23 2020-08-28 四川机器兄弟科技有限公司 Nursing bed
CN112294570A (en) * 2020-11-27 2021-02-02 赵韩 Intelligent nursing bed with integrated control of bed plate opening and closing and closestool lifting

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000279456A (en) * 1999-03-30 2000-10-10 Kimura Giken:Kk Bed system
CN2765596Y (en) * 2004-12-10 2006-03-22 上海焦点科技发展有限公司 Electric toilet transferring device of full automatic rehabilitation bed
WO2016163681A2 (en) * 2015-04-09 2016-10-13 김진일 Medical bed having easy to remove bedpan
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CN112294570A (en) * 2020-11-27 2021-02-02 赵韩 Intelligent nursing bed with integrated control of bed plate opening and closing and closestool lifting

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