CN113143626A

CN113143626A - Operation-stable nursing bed

Info

Publication number: CN113143626A
Application number: CN202110659930.8A
Authority: CN
Inventors: 王世正
Original assignee: Ningbo Xinlei Medical Equipment Co ltd
Current assignee: Ningbo Xinlei Medical Equipment Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-07-23
Anticipated expiration: 2041-06-11
Also published as: CN113143626B

Abstract

The invention discloses a nursing bed stable in operation, which comprises a bed frame, wherein a bed surface assembly is covered on the bed frame and comprises an upper body plate and a lower body plate, a base plate is arranged at the bottom of the bed frame, a toilet cover plate is arranged between the base plate and the lower body plate, a cover plate hole is formed in the lower body plate, the toilet cover plate is embedded into the cover plate hole, the toilet cover plate is connected with a cover plate moving mechanism, the cover plate moving mechanism comprises a cover plate support for supporting the toilet cover plate, two sides of the cover plate support are provided with fixed side plates, a cover plate lifting sliding groove is formed in each fixed side plate, two ends of the cover plate support are connected with guide wheels, the guide wheels are embedded into the cover plate lifting sliding groove, the cover plate lifting sliding groove is L-shaped, and the L-shaped folding angle of the cover plate lifting sliding groove is in transition by a straight line. The invention has the advantages that the corner of the toilet cover plate is smoother when the toilet cover plate is automatically removed, the phenomenon of blocking is not easy to occur, and the running stability is high.

Description

Operation-stable nursing bed

Technical Field

The invention relates to the technical field of nursing beds, in particular to a nursing bed stable in operation.

Background

At present, more and more multi-functional nursing beds are researched and developed, put into practical use, multi-functional nursing bed generally has the closestool and rises to the bed surface and supply inconvenient patient of action to excrete, because the closestool need rise to above the bed surface, consequently, need set up the closestool apron on the bed surface in order to cover the closestool lifting hole when not using the closestool, guarantee the integrality of bed surface, and when using, the operation that the apron was taken off to the manual work is comparatively difficult for patient, and the automation of apron is removed and need the apron to descend and with the apron translation in order to vacate two actions of closestool lifting hole, two actions link up section apron motion and have a corner point. At present, if one driving device is adopted for realizing the two actions, the cover plate is often blocked at the corner or the operation is unstable, and if the two driving devices are adopted for realizing the conditions of stability and corner blockage, the equipment cost is increased and the space below the nursing bed is blocked. Therefore, the existing nursing bed has the problem that the toilet cover plate is easy to be blocked at the corner or unstable in operation when being automatically removed.

Disclosure of Invention

The invention aims to provide a nursing bed which runs stably. The toilet cover plate has the advantages that the corners of the toilet cover plate are smoother when the toilet cover plate is automatically removed, the phenomenon of blocking is not easy to occur, and the running stability is high.

The technical scheme of the invention is as follows: the utility model provides a nursing bed that operation is stable, includes the bedstead, the bed surface assembly has been stamped on the bedstead, the bed surface assembly includes upper torso board and lower torso board, the bottom of bedstead is equipped with the chassis, be equipped with the toilet lid board between chassis and the lower torso board, be equipped with the apron hole on the lower torso board, the toilet lid board embedding is downthehole to the apron, the toilet lid board is connected with apron moving mechanism, apron moving mechanism is including the apron support that is used for supporting the toilet lid board, apron support both sides are equipped with fixed curb plate, be equipped with apron lift spout on the fixed curb plate, apron support both ends all are connected with the leading wheel, in the leading wheel embedding apron lift spout, apron lift spout is "L" shape, and the "L" shape dog-ear of apron lift spout is by one section straight line transition.

Compared with the prior art, the invention has the beneficial effects that: the invention is used for supporting the cover plate bracket of the toilet cover plate and connecting with the guide wheel, the guide wheel is embedded into the fixed side plate with the L-shaped cover plate lifting chute, so that the toilet cover plate can move horizontally after descending under the guiding action of the cover plate lifting chute, concretely, the L-shaped folding angle of the cover plate lifting chute is transited by a section of straight line, compared with the groove transited by a right angle, the invention can effectively avoid dead angle, the probability of the toilet cover plate being stuck is small, in addition, when the guide wheel moves to the straight line transition section of the folding angle, the straight line transition section can give the guide wheel an oblique upward reaction force, the upward component force of the reaction force can give a certain buffer to the guide wheel, and the phenomenon that the vertical downward impact force between the guide wheel and the cover plate lifting chute is too large to send out noise or cause the fixed side plate to generate vibration due to the too high descending speed of the vertical section of the toilet cover plate in the L-shaped cover plate lifting chute is avoided, affecting the stability of operation; compared with a groove in arc transition, the straight line transition section of the invention has the advantage of shortest straight line between two points, so that the transition section of the toilet cover plate between vertical descent and horizontal translation can more quickly convert the motion state, the response time is shorter, and the motion is more quickly implemented.

In the nursing bed with stable operation, an upper cover connecting rod and an upper cover clearance connecting rod are respectively hinged below the toilet cover plate, the lower end of the upper cover connecting rod and the lower end of the upper cover clearance connecting rod are respectively hinged on a cover plate middle connecting rod, the cover plate middle connecting rod is respectively hinged with a lower cover connecting rod and a lower cover clearance connecting rod downwards, and the lower end of the lower cover connecting rod and the lower cover clearance connecting rod are respectively hinged on a base plate fixed on a chassis; 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; and the four-point connecting line of the hinge point at the two ends of the lower connecting rod of the cover plate and the hinge point at the two ends of the lower clearance connecting rod of the cover plate forms a parallelogram.

In the nursing bed with stable operation, the cover plate upper clearance connecting rod bends and deforms towards the side where the cover plate upper connecting rod is located, and the cover plate lower clearance connecting rod bends and deforms towards the side where the cover plate lower connecting rod is located.

In the nursing bed with stable operation, one end of the cover plate middle connecting rod connected with the cover plate upper clearance connecting rod is hinged to the cover plate lower connecting rod, and one end of the cover plate middle connecting rod connected with the cover plate upper connecting rod is hinged to the cover plate lower clearance connecting rod.

In the nursing bed stable in operation, the cover plate lower connecting rod is rotatably connected with the cover plate moving pull rod, and the cover plate moving pull rod is connected with the power source.

In the nursing bed with stable operation, a toilet body and a urinal are further arranged between the chassis and the lower body plate, the toilet body is connected with a toilet lifting mechanism, and the urinal is connected with a urinal translation mechanism; 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, moving a toilet cover plate to descend below the surface of a nursing bed, and then translating to avoid 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 surface of the nursing bed;

and thirdly, translating the urinal to the lower part of the closestool body.

In the nursing bed with stable operation, the driving mechanism comprises a worm gear and worm gear reduction motor, the output end of the worm gear and worm gear reduction motor is connected with a transmission main shaft, 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, arc indents and clamping grooves are respectively arranged on the first cam, the second cam and the third cam, a first crescent wheel, a second crescent wheel and a third crescent wheel which are embedded into the arc indents 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 crescent wheel, the second crescent wheel and the third crescent wheel and are respectively and 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 stable operation nursing bed, in the operation process from the first operation to the third operation, 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 transmission main shaft rotates by 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 transmission main shaft rotates by 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 transmission main shaft rotates by 90 degrees again, the whole process from the first operation to the third operation is completed.

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 of the toilet lifting mechanism;

FIG. 7 is a schematic structural view of a urinal translation mechanism;

FIG. 8 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 cover plate is about to descend;

FIG. 9 is a schematic view of a dynamic mating process of the first cam with the first swing arm;

FIG. 10 is a schematic view showing the state of engagement of the cams with the swing arms in the state of FIG. 8;

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 another perspective 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. the urinal is translated to form a middle pull rod; 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.

Example (b): a nursing bed stable in operation is structurally shown in figures 1 to 8 and 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 cover plate 6 is arranged between the chassis 5 and the lower body plate 4, a cover plate hole 7 is formed in the lower body plate 4, the toilet cover plate 6 is embedded in the cover plate hole 7, the toilet cover plate 6 is connected with a cover plate moving mechanism 10, the cover plate moving mechanism 10 comprises a cover plate support 101 used for supporting the toilet cover plate 6, two sides of the cover plate support 101 are provided with fixed side plates 102, cover plate lifting chutes 103 are formed in the fixed side plates 102, two ends of the cover plate support 101 are respectively connected with guide wheels 104, the guide wheels 104 are embedded in the cover plate lifting chutes 103, the cover plate lifting chutes 103 are L-shaped, and the L-shaped corners of the cover plate lifting chutes 103 are transited by a 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, thereby avoiding the interference phenomenon in the narrow space below the nursing bed.

Preferably, one end of the cover plate middle connecting rod 107 connected with the cover plate upper clearance connecting rod 106 is hinged to the cover plate lower connecting rod 108, and one end of the cover plate middle connecting rod 107 connected with the cover plate upper connecting rod 105 is hinged to the cover plate lower clearance connecting rod 109, so that the bending deformation of the cover plate upper clearance connecting rod 106 and the cover plate 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 lower part of the bed surface of the nursing bed, and then the toilet cover plate is translated to avoid the 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 the third action is that the urinal 9 translates to the lower part of the closestool body 8.

The bending deformation part of the cover plate lower clearance connecting rod 109 provides space for installing 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 of 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 transmission main shaft 60 rotates by 90 °, the swing pin 415 on the first swing arm 404 is released 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 transmission main shaft 60 rotates by 90 ° again, the swing pin 415 on the second swing arm 405 is released 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 402 to drive the third cam 403 to rotate, and after the transmission main shaft 60 rotates by 90 ° again, the whole process of the first action to the third action is completed.

Referring to fig. 9, 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 portion of the cover upper clearance connecting rod 106 is provided to avoid a space where the electric push rod 44 is installed in the movement process of the cover upper clearance connecting rod 106, so as to avoid 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 and the lower connecting rod gear 208 are meshed, so that the gears are favorable for locking the angle and preventing slipping, the matched angle is large, the lifting is faster, the 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 the real horizontal lifting is realized.

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. 8, and the matching state of the cams and the swing arms is shown in fig. 10 and 11, at this time, the swing pin 415 on the first swing arm 404 is about to be inserted 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 inserted 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 a vertical downward movement, the toilet cover plate 6 descends to the lower part of the bed surface of the care bed, and immediately makes a 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.

Translation of the urinal 9: 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 is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned examples, and all technical solutions belonging to the idea of the present invention belong to the protection 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

1. The utility model provides a nursing bed that operation is stable, includes bedstead (1), be stamped bed surface assembly (2) on bedstead (1), bed surface assembly (2) include body (3) and lower body (4), the bottom of bedstead (1) is equipped with chassis (5), be equipped with toilet lid board (6) between chassis (5) and lower body (4), be equipped with apron hole (7) on lower body (4), toilet lid board (6) imbed in apron hole (7), toilet lid board (6) are connected with apron moving mechanism (10), its characterized in that: the cover plate moving mechanism (10) comprises a cover plate support (101) used for supporting the toilet cover plate (6), two sides of the cover plate support (101) are provided with fixed side plates (102), cover plate lifting sliding grooves (103) are formed in the fixed side plates (102), two ends of the cover plate support (101) are connected with guide wheels (104), the guide wheels (104) are embedded into the cover plate lifting sliding grooves (103), the cover plate lifting sliding grooves (103) are L-shaped, and L-shaped folding corners of the cover plate lifting sliding grooves (103) are transited by a straight line.

2. A care bed stable in operation as claimed in claim 1, wherein: 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), the cover plate middle connecting rod (107) is respectively hinged with a lower cover connecting rod (108) and a lower cover clearance connecting rod (109) downwards, and the lower end part of the lower cover connecting rod (108) and the lower end part of the lower cover clearance connecting rod (109) are respectively hinged on a base plate (110) fixed on the chassis (5); 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 form a parallelogram; and 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.

3. A care bed stable in operation 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.

4. A care bed stable in operation according to claim 2 or 3, characterized in that: one end of the cover plate middle connecting rod (107) connected with the cover plate upper clearance connecting rod (106) is hinged to the cover plate lower connecting rod (108), and one end of the cover plate middle connecting rod (107) connected with the cover plate upper connecting rod (105) is hinged to the cover plate lower clearance connecting rod (109).

5. A care bed stable in operation according to claim 2 or 3, characterized in that: the cover plate lower connecting rod (108) is rotatably connected with a cover plate moving pull rod (111), and the cover plate moving pull rod (111) is connected with a power source.

6. A care bed stable in operation as claimed in claim 1, wherein: a closestool body (8) and a bedpan (9) are also arranged between the chassis (5) and the lower body plate (4), the closestool body (8) is connected with a closestool lifting mechanism (20), and the bedpan (9) is connected with a bedpan 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, the toilet cover plate (6) descends to the lower part of the bed surface of the nursing bed, and then translates to avoid the 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 lower part of the closestool body (8).

7. A care bed stable in operation according to claim 6, characterized in that: the driving mechanism (50) comprises a worm and gear speed reducing motor (501), the output end of the worm and gear speed reducing motor (501) is connected with a transmission main shaft (60), a first linkage bearing table (407), a second linkage bearing table (408) and a third linkage bearing table (409) are arranged on the transmission main shaft (60) in a penetrating mode, the first linkage bearing table (407), the second linkage bearing table (408) and the third linkage bearing table (409) are respectively in rotating connection with a first cam (401), a second cam (402) and a third cam (403), circular arc inner recesses (410) and clamping grooves (411) are formed in the first cam (401), the second cam (402) and the third cam (403), and a circular arc first month cone (412) embedded into the first cam (401), the second cam (402) and the third cam (403) is connected to the transmission main shaft (60) respectively, 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.

8. A care bed stable in operation as claimed in claim 7, wherein: 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 action one to action three.