CN113101088A

CN113101088A - Lifting-free type bed sheet quick and automatic replacing device for patient

Info

Publication number: CN113101088A
Application number: CN202110391341.6A
Authority: CN
Inventors: 盛友爱
Original assignee: Yijishan Hospital of Wannan Medical College
Current assignee: Yijishan Hospital of Wannan Medical College
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-07-13
Anticipated expiration: 2041-04-13
Also published as: CN113101088B

Abstract

The invention discloses a lifting-free type bed sheet quick and automatic replacing device for a patient, which belongs to the field of medical care equipment and comprises a main box body and a lifting trapezoidal seat, wherein the upper end surface of the trapezoidal seat is an inclined surface, the upper end surface of the trapezoidal seat is connected with an inserting plate in a sliding manner, the main box body is provided with a first driving mechanism for driving the trapezoidal seat to ascend, the outer side of the main box body is provided with a limiting mechanism for blocking the inserting plate to ascend, and an unlocking mechanism for removing the blocking effect of the limiting mechanism; a bed sheet storage cavity is arranged in the trapezoidal seat, an outer U-shaped plate and an inner U-shaped plate used for clamping one side of a clean bed sheet are arranged in the trapezoidal seat, the outer U-shaped plate and the inner U-shaped plate are driven to extend out of the lower portion of the inserting plate, and one side of the clean bed sheet can be pulled between a sickbed and a patient; and through the effect of locating lever and fourth spring, outer U template can take place the displacement for interior U template to can relax the centre gripping to clean sheet automatically. The invention has convenient operation and high working efficiency, does not need to carry patients and does not need to use a motor.

Description

Lifting-free type bed sheet quick and automatic replacing device for patient

Technical Field

The invention relates to the field of medical care equipment, in particular to a lifting-free type bed sheet quick and automatic replacing device for a patient.

Background

Hospital beds are medical care facilities necessary for hospitalized patients. The use of hospital beds, aiming at achieving the following intended purposes: preventing, diagnosing, treating, monitoring and relieving diseases; and (II) diagnosis, treatment, monitoring, alleviation and compensation of injury or disability.

The sickbed is used for a patient lying in bed for a long time, the bedsheet and the bedding need to be replaced frequently, at present, when the bedsheet and the bedding are replaced, the patient needs to be carried usually, pain and discomfort are brought to the patient easily, the patient is inconvenient to move, more manpower is consumed, the labor amount of medical staff is large, and the work efficiency of the medical staff for replacing the bedsheet is low. Therefore, a lifting-free bed sheet quick and automatic replacing device for patients needs to be designed.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to solve the technical problem of providing a lifting-free bed sheet quick automatic replacing device for a patient, which has the advantages of ingenious structural design, strong linkage, convenient operation, less labor consumption, high working efficiency, no need of moving the patient and capability of avoiding pain and discomfort of the patient; and a motor is not needed, a power supply is not depended on, and the application value is high.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

the utility model provides a patient is with exempting from to lift formula sheet quick automatic change device, includes the main tank body, be equipped with the trapezoidal seat that can go on the lift removal in the main tank body, the longitudinal section of trapezoidal seat is trapezoidal, and the up end of trapezoidal seat is the inclined plane, the up end of trapezoidal seat is equipped with the slope slide rail along its up end slope, sliding connection has a slider on the slope slide rail, fixedly connected with picture peg that the level set up on the slider, the opening that supplies the picture peg to pass and can the lift removal is seted up to one side of main tank body, the bottom of opening is not less than the up end of sick bed, the low side of the up end of trapezoidal seat is located opening place side, and the high-end side of the up end of trapezoidal seat is located the opposite side of opening place side, be equipped with the first actuating mechanism that is used for driving trapezoidal seat to rise on the main tank body, the main tank body outside is equipped with and is used for hindering the stop, under the blocking action of the limiting mechanism, the inserting plate horizontally moves, an unlocking mechanism used for removing the blocking action of the limiting mechanism is arranged at the upper part of the main box body, after the unlocking mechanism is triggered, the limiting mechanism loses the blocking action on the inserting plate, so that the inserting plate moves up and down along with the trapezoidal seat, and in an initial state, the sliding block is positioned at one end, sucked through the through opening, of the trapezoidal seat;

a bed sheet storage chamber for storing a bed sheet is formed in the lower portion of the inner portion of the trapezoidal seat, one side, facing the through opening, of the bed sheet storage chamber is communicated with the corresponding side end face of the trapezoidal seat, a switch door aligned with the bed sheet storage chamber is hinged to the lower portion, corresponding to the side where the through opening is located, of the main box body, a door handle is fixed on the outer side face of the switch door, an outer U-shaped plate capable of moving transversely is arranged at the top of the bed sheet storage chamber, a block of U-shaped plate is connected below the outer U-shaped plate in a sliding mode, the longitudinal sections of the outer U-shaped plate and the inner U-shaped plate are both U-shaped with downward openings, one sides, facing the through opening, of the outer U-shaped plate and the inner U-shaped plate are used for clamping one side of the bed sheet, a third spring is connected between one sides, facing away from the through opening, one side of the bed sheet storage cavity facing the through opening is provided with a positioning rod positioned below the inner U-shaped plate, and the positioning rod is fixedly connected with the trapezoidal seat.

Furthermore, the first driving mechanism comprises a pedal which is arranged at the lower part of the main box body in a lifting manner, a lifting slat which is vertically fixed on the pedal, a first rack which is vertically fixed on one side of the lifting slat, a third gear which is meshed with one side of the lower part of the first rack, a second rack which is vertically fixed on one side of the trapezoidal seat facing away from the through hole, a second gear which is meshed with one side of the upper end of the second rack, and a belt transmission component which is connected between the third gear and the second gear, wherein one side of the main box body facing away from the through hole is provided with a first containing cavity which is used for containing the upper part of the lifting slat and a second containing cavity which is used for containing the second gear, a first rotating shaft which is fixedly connected with the second gear is arranged on the axis of the second gear in a penetrating manner, a second rotating shaft which is fixedly connected with the third gear is arranged on the axis of the third gear in a, and the first rotating shaft and the second rotating shaft are both rotationally connected with the main box body, and the belt transmission assembly is arranged between the outer side ends of the first rotating shaft and the second rotating shaft. After the pedal is stepped down, the lifting batten is driven to descend, namely the first rack is driven to move downwards, so that the third gear is driven to rotate, the second rotating shaft rotates along with the third gear, the first rotating shaft is driven to rotate through the belt transmission assembly, the second gear rotates along with the third gear, the first rack is located on the right side of the third gear, the second gear is located on the right side of the second rack, the second rack is driven to ascend, the trapezoid seat is effectively driven to ascend, a motor is not needed, and only the pedal is stepped down by medical personnel.

Furthermore, the bottom surface of the main box body is fixedly connected with a guide cylinder which is vertically arranged and is positioned above the pedal, the pedal is fixedly connected with a guide rod which vertically extends into the guide cylinder, and the lower port of the guide cylinder just allows the guide rod to pass through. The guide rod can lift along with the lifting of the pedal, and the guide cylinder can limit the lifting movement of the guide rod by a lead, so that the pedal can be prevented from inclining.

Further, a second spring longitudinally connected to the lifter plate is fixed to the top of the first housing. When the pedal descends, the lifting strip plate descends along with the pedal, so that the second spring is stretched, and after the pedal is released, the elastic resetting action of the second spring can pull the lifting strip plate to ascend, thereby promoting the resetting of the pedal.

Furthermore, a longitudinal sliding rail for the trapezoidal seat to longitudinally slide is fixed on the inner wall of one side of the main box body, which is back to the through opening. Realize the sliding connection of trapezoidal seat and main tank body through vertical slide rail, can provide spacing guide effect for the lift removal of trapezoidal seat to can promote the mobility stability of trapezoidal seat.

Further, stop gear includes the spacing section of thick bamboo of lift of suit on the picture peg outside portion, vertical connection in the spacing section of thick bamboo of lift upper end and with main tank body fixed connection's pneumatic cylinder to and fix the switch section of thick bamboo at main tank body top, be equipped with vertical downwardly extending in the pneumatic cylinder and the piston of being connected with the spacing section of thick bamboo of lift, be connected with the fluid-discharge tube between the upper end of pneumatic cylinder and one side lower extreme of a switch section of thick bamboo, the bottom is equipped with the shutoff piece that is used for the shutoff fluid-discharge tube in the switch section of thick bamboo, the equal attached switch section of thick bamboo's of week inner wall in the side of shutoff piece, the interior top of a switch section of thick bamboo is connected with the first spring of longitudinal connection on the shutoff piece, first spring is. Under the elastic force pressure of first spring, the shutoff piece tightly presses the bottom in the switch section of thick bamboo, ensure the shutoff fluid-discharge tube, make the liquid stability in the pneumatic cylinder be located the pneumatic cylinder, thereby make the piston difficult rise, can keep the position of the spacing section of thick bamboo that goes up and down, make it be located lower department, when trapezoidal seat goes up, the spacing section of thick bamboo of going up and down is injectd the picture peg and can not rise along with it, because the up end of trapezoidal seat is the inclined plane, make the slider move to opening place side along the slope slide rail, promote the picture peg to stretch out to the outside, the earlier stage that rises at trapezoidal seat hinders the picture peg to rise promptly, make the picture peg transversely stretch out, be convenient for.

Furthermore, the unlocking mechanism comprises a liquid storage cylinder fixed at the top of the main box body, a conflict rod fixed on the bottom surface of the blocking block and extending to the inner side of the main box body, and a U-shaped frame fixedly connected to the trapezoidal seat, wherein the lower end of one side, back to the liquid discharge pipe, of the switch cylinder is connected with a liquid feeding pipe communicated with the liquid storage cylinder, a return pipe is connected between the bottom of the liquid storage cylinder and the liquid discharge pipe, one-way valves are arranged on the return pipe and the liquid feeding pipe, the one-way valve on the return pipe is opened towards the liquid discharge pipe, the one-way valve on the liquid feeding pipe is opened towards the liquid storage cylinder, the touch rod longitudinally penetrates through the bottom of the switch cylinder and the top of the main box body, the U-shaped frame is located under the touch rod, the left side surface and the right side surface of the U-shaped frame are both in a U shape with a downward opening, and the two ends of. In the ascending process of trapezoidal seat, U type frame rises thereupon, after the picture peg inserted between patient and the sick bed, U type frame is contradicted and is supported the feeler lever, and promote to support the feeler lever and rise, the shutoff piece rises thereupon, can communicate fluid-discharge tube and liquid delivery pipe, make pneumatic cylinder and liquid storage tank intercommunication, make the liquid in the pneumatic cylinder can be injected easily in the liquid storage tank, then in the follow-up ascending process of trapezoidal seat, can promote to go up and down spacing section of thick bamboo and piston and rise together, with the liquid propelling movement in the pneumatic cylinder to the liquid storage tank, in this process, the picture peg can be raised the patient on the sick bed, so that carry out the change of sheet.

Further, the second driving mechanism comprises a third rack fixed on the upper end surface of the outer U-shaped plate, a fourth gear meshed above the third rack, and a first gear coaxially connected with the fourth gear, and a fixed rack capable of meshing with the first gear, the fourth gear is arranged inside the trapezoidal seat, a third rotating shaft fixedly connected with the fourth gear is arranged on the axis of the fourth gear in a penetrating way, both ends of the third rotating shaft penetrate through the trapezoidal seat and are connected with the corresponding side panels of the main box body in a sliding way, a strip-shaped sliding groove for lifting and moving the third rotating shaft is arranged on the corresponding side panel of the main box body and penetrates through the inner side and the outer side of the main box body, and at least one end of the third rotating shaft is fixedly sleeved with a first gear, the fixed rack is fixed on the outer surface of the main box body, and the fixed rack is parallel to the strip-shaped sliding groove and is positioned on one side of the upper part of the strip-shaped sliding groove. In the process of lifting a patient, after the first gear is meshed with the fixed rack, the first gear rises along with the continuation of the trapezoid base, the first gear is meshed with the fixed rack, the fixed rack is fixed, so that the first gear rotates, the third rotating shaft rotates along with the first gear, the fourth gear is driven to rotate, the third rack can be driven to translate, the outer U-shaped plate translates along with the third rack, and the inner U-shaped plate is free from other forces, so that the outer U-shaped plate and the inner U-shaped plate synchronously extend out of the main box body through the through hole, and one side of a bed sheet clamped between the outer U-shaped plate and the inner U-shaped plate is pulled to the upper part of a sickbed along with the outer U-shaped plate and; after one side conflict locating lever of interior U template connection third spring, interior U template no longer can continue to stretch out, but outer U template still can continue to stretch out, then interior U template can move left for outer U template to can relax one side of the sheet of centre gripping before, realize breaking away from of sheet and this device.

Furthermore, the bottom surface of the main box body is connected with four supporting legs, universal wheels are mounted at the bottoms of the supporting legs, and a push-pull handle is fixed on one side of the upper end of the main box body. The main box body can be conveniently transferred and carried through the supporting legs, the universal wheels and the push-pull handle.

3. Advantageous effects

(1) The invention is provided with the inserting plate and the driving structure thereof, when in application, the inserting plate is firstly driven to extend out, so that the inserting plate can be inserted between the back of a patient and a sickbed; then the inserting plate is driven to rise, so that the patient can be lifted, the used bed sheet can be conveniently drawn away, the bed sheet can be conveniently laid cleanly, the patient does not need to be moved in the process, and pain and discomfort of the patient can be avoided.

(2) The bed sheet storage cavity is used for storing a clean bed sheet, the outer U-shaped plate and the inner U-shaped plate are used for clamping one side of the clean bed sheet, and one side of the clean bed sheet can be pulled between a sickbed and a patient by driving the outer U-shaped plate and the inner U-shaped plate to extend out of the lower part of the inserting plate; and through the effect of locating lever and fourth spring, the locating lever can hinder the follow-up removal of interior U template, and outer U template can take place the displacement for interior U template to can relax the centre gripping to clean sheet automatically, realize breaking away from of clean sheet and this device, realize automatic sheet of laying, improve the automation of this device, can improve the efficiency that the sheet was changed.

(3) The plug board lifting mechanism is characterized in that the plug board is horizontally moved under the blocking action of the limiting mechanism; after the unlocking mechanism is triggered, the limiting mechanism loses the blocking effect on the inserting plate, so that the inserting plate moves up and down along with the trapezoidal base; the gear rack assembly is used for driving the outer U-shaped plate to transversely move and is linked with the lifting movement of the trapezoidal seat, and the gear rack assembly is driven to automatically lay the bed sheet at the rising later stage of the trapezoidal seat. The three operation purposes of inserting the inserting plate between the back of a patient and a sickbed, lifting the patient by driving the inserting plate to rise and automatically laying the bed sheet in the process of lifting the patient can be achieved sequentially only by driving the trapezoid seat to rise, and the operation is simple to control and convenient to apply.

(4) The invention is provided with the pedal, the pedal is linked with the trapezoidal seat through the gear rack transmission component and the belt transmission component, when the pedal moves downwards, the trapezoidal seat rises, when in application, the three operation purposes can be completed only by stepping on the pedal, and then the pedal is released. The whole process is convenient to operate, does not need to use a motor, does not depend on a power supply, and has high application value.

In conclusion, the invention has the advantages of ingenious structural design, strong linkage, convenient operation, less manpower consumption, high working efficiency, no need of moving the patient and capability of avoiding pain and discomfort of the patient; and a motor is not needed, a power supply is not depended on, and the application value is high.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention in an initial state;

FIG. 2 is a schematic diagram of the internal structure of the present invention in the initial state;

FIG. 3 is an enlarged view of the structure of the area A in FIG. 2;

FIG. 4 is an enlarged view of the trapezoidal base 35 and associated structures thereon;

fig. 5-10 are schematic diagrams during an application process of the present invention, wherein fig. 5 and 6 are schematic diagrams of a first stage, fig. 7 and 8 are schematic diagrams of a second stage, fig. 9 and 10 are schematic diagrams of a third stage, and fig. 5, 7 and 9 are external structural schematic diagrams of the apparatus in a corresponding state; fig. 6, 8 and 10 are schematic views of the internal structure of the device in the corresponding states.

Reference numerals: 1. a hospital bed; 2. a soft cushion; 3. inserting plates; 4. a lifting limiting cylinder; 5. a piston; 6. a strip-shaped chute; 7. a hydraulic cylinder; 8. a liquid discharge pipe; 9. a return pipe; 10. a switch cylinder; 11. a one-way valve; 12. a liquid storage cylinder; 13. a push-pull handle; 14. fixing a rack; 15. a main box body; 16. a first rotating shaft; 17. a belt drive assembly; 18. lifting the batten; 19. a pedal; 20. a second rotating shaft; 21. a universal wheel; 22. a guide cylinder; 23. supporting legs; 24. a first gear; 25. a door handle; 26. opening and closing the door; 27. a plugging block; 28. a first spring; 29. a touch bar; 30. a longitudinal slide rail; 31. a U-shaped frame; 32. a slider; 33. a second gear; 34. a second spring; 35. a trapezoidal base; 36. a first rack; 37. a third gear; 38. inclining the slide rail; 39. a second rack; 40. a third spring; 41. a bed sheet storage chamber; 42. an outer U-shaped plate; 43. an inner U-shaped plate; 44. a fourth gear; 45. a third rotating shaft; 46. positioning a rod; 47. a guide bar; 48. a port; 49. a roller; 50. a third rack; 51. a liquid delivery pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1 and fig. 2, the lifting-free type rapid automatic bed sheet replacing device for patients is arranged on one side of a hospital bed 1, a cushion 2 is arranged on the hospital bed 1, the device comprises a main box body 15, a trapezoid seat 35 capable of moving up and down is arranged in the main box body 15, the longitudinal section of the trapezoid seat 35 is trapezoid, the upper end surface of the trapezoid seat 35 is an inclined surface, an inclined slide rail 38 inclined along the upper end surface of the trapezoid seat 35 is arranged on the upper end surface of the trapezoid seat 35, a slide block 32 is connected on the inclined slide rail 38 in a sliding manner, a plug board 3 horizontally arranged is fixedly connected on the slide block 32, a through hole 48 for the plug board 3 to pass through and move up and down is arranged on one side of the main box body 15, the bottom of the through hole 48 is not lower than the upper end surface of the hospital bed 1, the lower end side of the upper end surface of the trapezoid seat 35 is located on the side of the through hole 48, the high, be equipped with the first actuating mechanism that is used for driving trapezoidal seat 35 to rise on the main tank body 15, the main tank body 15 outside is equipped with and is used for hindering the stop gear that 3 rises of picture peg 3 at the ascending earlier stage of trapezoidal seat 35, under stop gear's hindrance effect for picture peg 3 carries out horizontal migration, just the upper portion of main tank body 15 is equipped with the release mechanism who is used for relieving stop gear's hindrance effect, triggers behind the release mechanism, and stop gear loses the hindrance effect to picture peg 3, makes picture peg 3 carry out lifting movement along with trapezoidal seat 35, and under the initial condition, slider 32 is located trapezoidal seat 35 and has been absorbed the one end of passing through opening 48.

The first driving mechanism comprises a pedal 19 which is arranged at the lower part of the main box body 15 in a lifting manner, a lifting slat 18 which is vertically fixed on the pedal 19, a first rack 36 which is vertically fixed on one side of the lifting slat 18, a third gear 37 which is meshed with one side of the lower part of the first rack 36, a second rack 39 which is vertically fixed on one side of the trapezoidal seat 35 back to the through hole 48, a second gear 33 which is meshed with one side of the upper end of the second rack 39, and a belt transmission assembly 17 which is connected between the third gear 37 and the second gear 33, wherein one side of the main box body 15 back to the through hole 48 is provided with a first containing cavity for containing the upper part of the lifting slat 18 and a second containing cavity for containing the second gear 33, a first rotating shaft 16 which is fixedly connected with the second gear 33 penetrates through the axis of the second gear 33, and a second rotating shaft 20 which is fixedly connected with the third gear 37 penetrates through the axis of, one end of each of the first rotating shaft 16 and the second rotating shaft 20 extends to the outer side of the main box body 15, the first rotating shaft 16 and the second rotating shaft 20 are rotatably connected with the main box body 15, and the belt transmission assembly 17 is arranged between the outer side ends of the first rotating shaft 16 and the second rotating shaft 20. After the pedal 19 is stepped down, the lifting slat 18 is driven to descend, namely the first rack 36 is driven to move downwards, so as to drive the third gear 37 to rotate, the second rotating shaft 20 rotates along with the third rotating shaft, the first rotating shaft 16 is driven to rotate through the belt transmission assembly 17, the second gear 33 rotates along with the third rotating shaft, the first rack 36 is positioned on the right side of the third gear 37, and the second gear 33 is positioned on the right side of the second rack 39, so that the second rack 39 is driven to ascend, so that the trapezoidal seat 35 is effectively driven to ascend, a motor is not needed, and only the pedal 19 is stepped down by medical staff.

The limiting mechanism comprises a lifting limiting cylinder 4 sleeved on the outer side part of the inserting plate 3, a hydraulic cylinder 7 vertically connected to the upper end of the lifting limiting cylinder 4 and fixedly connected with the main box body 15, and a switch cylinder 10 fixed on the top of the main box body 15, wherein a piston 5 vertically extending downwards and connected with the lifting limiting cylinder 4 is arranged in the hydraulic cylinder 7, a liquid discharge pipe 8 is connected between the upper end of the hydraulic cylinder 7 and the lower end of one side of the switch cylinder 10, a plugging block 27 used for plugging the liquid discharge pipe 8 is arranged at the inner bottom of the switch cylinder 10, the peripheral sides of the plugging blocks 27 are attached to the inner wall of the switch cylinder 10, the inner top of the switch cylinder 10 is connected with a first spring 28 longitudinally connected to the plugging block 27, and the first spring 28 is a pre-tightening; as shown in fig. 3, two rows of rollers 49 are disposed in the elevation limiting cylinder 4 and located at two opposite sides of the board 3, respectively, so that the translation smoothness of the board 3 relative to the elevation limiting cylinder 4 can be improved. Under the elastic pressure of the first spring 28, the blocking block 27 is tightly pressed at the bottom in the switch cylinder 10, so that the liquid discharge pipe 8 is blocked, the liquid in the hydraulic cylinder 7 is stably positioned in the hydraulic cylinder 7, the piston 5 is difficult to rise, namely, the position of the lifting limiting cylinder 4 can be kept, the lifting limiting cylinder is positioned at a lower position, when the trapezoidal seat 35 rises, the lifting limiting cylinder 4 limits the plugboard 3 to not rise along with the plugboard 3, because the upper end face of the trapezoidal seat 35 is an inclined plane, the sliding block 32 moves to the side where the through hole 48 is positioned along the inclined sliding rail 38, the plugboard 3 is pushed to extend outwards, namely, the plugboard 3 is blocked to rise in the early stage of the rising of the trapezoidal seat 35, the plugboard 3 transversely extends out, and the.

The unlocking mechanism comprises a liquid storage cylinder 12 fixed at the top of the main box body 15, an abutting rod 29 fixed on the bottom surface of the blocking block 27 and extending to the inner side of the main box body 15, and a U-shaped frame 31 fixedly connected with the trapezoidal base 35, the lower end of the side of the switch cylinder 10, which is back to the liquid discharge pipe 8, is connected with a liquid delivery pipe 51 communicated with the liquid storage tank 12, a return pipe 9 is connected between the bottom of the liquid storage cylinder 12 and the liquid discharge pipe 8, the return pipe 9 and the liquid sending pipe 51 are both provided with a one-way valve 11, the check valve 11 on the return pipe 9 is opened toward the drain pipe 8, the check valve 11 on the liquid sending pipe 51 is opened toward the liquid storage tank 12, the contact rod 29 longitudinally passes through the bottom of the switch cylinder 10 and the top of the main box body 15, the U-shaped frame 31 is positioned right below the contact rod 29, the left side and the right side of the U-shaped frame 31 are both in a U shape with an opening facing downwards, and two ends of the U-shaped frame 31 are respectively fixed on the front side and the rear side of the trapezoidal seat 35. In the ascending process of the trapezoidal base 35, the U-shaped frame 31 ascends along with the ascending, after the inserting plate 3 is inserted between a patient and the sickbed 1, the U-shaped frame 31 abuts against the contact rod 29 and pushes the contact rod 29 to ascend, the blocking block 27 ascends along with the ascending and can be communicated with the liquid discharge pipe 8 and the liquid feeding pipe 51, the hydraulic cylinder 7 is communicated with the liquid storage cylinder 12, liquid in the hydraulic cylinder 7 can be injected into the liquid storage cylinder 12 easily, then in the subsequent ascending process of the trapezoidal base 35, the lifting limiting cylinder 4 and the piston 5 can be pushed to ascend together, the liquid in the hydraulic cylinder 7 is pushed into the liquid storage cylinder 12, in the process, the inserting plate 3 can lift a bed sheet of the patient on the sickbed 1, and therefore the replacement of the bed sheet can be conveniently carried out.

As shown in fig. 4, a bed sheet storage chamber 41 for storing a bed sheet is formed in the lower portion of the trapezoid seat 35, one side of the bed sheet storage chamber 41 facing to the through port 48 is penetrated to the corresponding side end surface of the trapezoid seat 35, the lower portion of the main box 15 corresponding to the side of the through port 48 is hinged with a switch door 26 aligned with the bed sheet storage chamber 41, a door handle 25 is fixed on the outer side surface of the switch door 26, an outer U-shaped plate 42 capable of moving transversely is arranged at the top portion of the bed sheet storage chamber 41, a block of U-shaped plate 43 is slidably connected below the outer U-shaped plate 42, the longitudinal sections of the outer U-shaped plate 42 and the inner U-shaped plate 43 are both in a "U" shape with an opening facing downwards, one side of the outer U-shaped plate 42 and the inner U-shaped plate 43 facing to the through port 48 is used for clamping one side of the bed sheet, a third spring 40 is connected between one side of, the main box body 15 is provided with a second driving mechanism for driving the outer U-shaped plate 42 to extend outwards, a positioning rod 46 positioned below the inner U-shaped plate 43 is arranged on one side of the bed sheet storage cavity 41 facing the through opening 48, and the positioning rod 46 is fixedly connected with the trapezoidal seat 35.

The second driving mechanism comprises a third rack 50 fixed on the upper end surface of the outer U-shaped plate 42, a fourth gear 44 positioned above the third rack 50 in a meshing manner, a first gear 24 coaxially connected with the fourth gear 44, and a fixed rack 14 capable of meshing with the first gear 24, the fourth gear 44 is arranged inside the trapezoidal seat 35, a third rotating shaft 45 fixedly connected with the fourth gear 44 penetrates through the axis of the fourth gear 44, two ends of the third rotating shaft 45 penetrate through the trapezoidal seat 35 and are slidably connected with corresponding side panels of the main box body 15, a bar-shaped chute 6 for lifting and moving the third rotating shaft 45 is arranged on the corresponding side panels of the main box body 15, the bar-shaped chute 6 penetrates through the inner side and the outer side of the main box body 15, the first gear 24 is fixedly sleeved on at least one end of the third rotating shaft 45, and the fixed rack 14 is fixed on the outer surface of the main box body 15, and the fixed rack 14 is parallel to the bar-shaped chute 6 and is located at one side of the upper portion of the bar-shaped chute 6. In the process of lifting a patient, after the first gear 24 is meshed with the fixed rack 14, the first gear 24 rotates along with the continuous rising of the trapezoidal base 35 as the first gear 24 is meshed with the fixed rack 14 and the fixed rack 14 is not moved, the third rotating shaft 45 rotates along with the first gear, the fourth gear 44 is driven to rotate, the third rack 50 is driven to translate, the outer U-shaped plate 42 translates along with the fourth gear, and the inner U-shaped plate 43 does not bear other forces at the moment, so that the outer U-shaped plate 42 and the inner U-shaped plate 43 synchronously extend out of the main box body 15 through the through hole 48, and one side of a bed sheet clamped between the outer U-shaped plate 42 and the inner U-shaped plate 43 is pulled to the upper part of the sickbed 1; after one side of the inner U-shaped plate 43 connected with the third spring 40 abuts against the positioning rod 46, the inner U-shaped plate 43 can not extend out any more, but the outer U-shaped plate 42 can still extend out, so that the inner U-shaped plate 43 can move leftwards relative to the outer U-shaped plate 42, one side of a bed sheet clamped before can be loosened, and the separation of the bed sheet from the device is realized.

Example 2

The present embodiment is different from embodiment 1 in that:

in this embodiment, as shown in fig. 2, a guide cylinder 22 vertically arranged and located above the pedal 19 is fixedly connected to the bottom surface of the main box 15, a guide rod 47 vertically extending into the guide cylinder 22 is fixedly connected to the pedal 19, and a lower port of the guide cylinder 22 is just for the guide rod 47 to pass through. The guide rod 47 can be lifted along with the lifting of the pedal 19, and the guide cylinder 22 can limit the lifting movement of the guide rod 47 by a wire, so that the pedal 19 can be prevented from inclining.

In this embodiment, as shown in fig. 2, a second spring 34 is fixed to the top of the first housing and is connected longitudinally to the lifter bar 18. When the pedal 19 descends, the lifting slat 18 descends along with the pedal, so that the second spring 34 is stretched, and after the pedal 19 is released, the elastic resetting action of the second spring 34 can pull the lifting slat 18 to ascend, thereby promoting the resetting of the pedal 19.

In the present embodiment, as shown in fig. 2, a longitudinal slide rail 30 for sliding the trapezoid seat 35 longitudinally is fixed on the inner wall of the main box 15 facing away from the through opening 48. Realize trapezoidal seat 35 and main tank body 15's sliding connection through longitudinal slide rail 30, can provide spacing guide effect for trapezoidal seat 35's the lifting movement to can promote trapezoidal seat 35's mobility stability.

In the present embodiment, as shown in fig. 1 and 2, four support legs 23 are connected to the bottom surface of the main casing 15, universal wheels 21 are mounted on the bottoms of the support legs 23, and a push-pull handle 13 is fixed to the upper end side of the main casing 15. The main body 15 can be transferred and carried more easily by the support legs 23, the universal wheels 21, and the push-pull handle 13.

Otherwise, the same procedure as in example 1 was repeated.

The specific action principle of the lifting-free bed sheet quick automatic replacing device for the patient is as follows:

when the bed sheet is to be replaced, the switch door 26 is opened, a clean bed sheet is put into the bed sheet storage cavity 41, one side of the bed sheet is clamped between the outer U-shaped plate 42 and the inner U-shaped plate 43, then the device is moved to one side of the sickbed 1 through the push-pull handle 13, the through hole 48 is made to face the sickbed 1 in the positive direction, the outer side end of the inserting plate 3 is lapped on the edge of the cushion 2, after the universal wheel 21 is braked, at least one medical worker steps on the pedal 19 to drive the lifting strip plate 18 to descend, namely, the first rack 36 is driven to move downwards, so that the third gear 37 is driven to rotate, the second rotating shaft 20 rotates along with the second rotating shaft, the first rotating shaft 16 is driven to rotate by the belt transmission component 17, the second gear 33 rotates along with the second rotating shaft, because the first rack 36 is positioned at the right side of the third gear 37, and the second gear 33 is positioned at the right side of the second rack 39, the second rack, thereby effectively driving the trapezoidal base 35 to rise, and the process is divided into three stages:

the first stage is as follows: because under the elastic pressure of the first spring 28, the blocking block 27 is tightly pressed at the bottom in the switch cylinder 10, the liquid discharge pipe 8 is blocked, so that the liquid in the hydraulic cylinder 7 is stably positioned in the hydraulic cylinder 7, the piston 5 is difficult to rise, namely, the position of the lifting limiting cylinder 4 can be kept and positioned at a lower position, when the trapezoidal seat 35 rises, the lifting limiting cylinder 4 limits the inserting plate 3 not to rise along with the inserting plate 3, because the upper end surface of the trapezoidal seat 35 is an inclined surface, the sliding block 32 moves to the side of the through hole 48 along the inclined sliding rail 38, the inserting plate 3 is pushed to extend outwards until the inserting plate 3 completely extends out, and the inserting plate 3 presses the cushion 2 downwards and is inserted between a patient and the sickbed 1; and in the process, the U-shaped frame 31 rises along with the trapezoidal base 35, and when the inserting plate 3 is completely extended, the U-shaped frame 31 abuts against the contact rod 29, as shown in fig. 5 and 6;

and a second stage: after the U-shaped frame 31 abuts against the contact rod 29, the contact rod 29 is pushed to ascend along with the ascending of the trapezoid base 35, the blocking block 27 ascends along with the ascending of the trapezoid base 35 to communicate the liquid discharge pipe 8 and the liquid sending pipe 51, so that the hydraulic cylinder 7 is communicated with the liquid storage cylinder 12, the liquid in the hydraulic cylinder 7 can be easily pushed into the liquid storage cylinder 12, the lifting limiting cylinder 4 and the piston 5 are pushed to ascend together in the continuous ascending process of the trapezoid base 35, the liquid in the hydraulic cylinder 7 is pushed into the liquid storage cylinder 12 through the liquid discharge pipe 8 and the liquid sending pipe 51 under the directional action of the one-way valve 11, in the process, the plugboard 3 ascends along with the lifting limiting cylinder 4 until the bed sheet storage cavity 41 is communicated with the through opening 48, the bottoms of the outer U-shaped plate 42 and the inner U-shaped plate 43 are not lower than the bottoms of the through opening 48, the first gear 24 is just meshed with the fixed rack 14, as shown in fig. 7 and 8, a, so as to be convenient for drawing away the used bed sheet;

and a third stage: after the first gear 24 is meshed with the fixed rack 14, the first gear 24 is meshed with the fixed rack 14 and the fixed rack 14 is not moved along with the continuous rising of the trapezoid seat 35, so that the first gear 24 rotates, the third rotating shaft 45 rotates along with the rotation of the first gear to drive the fourth gear 44 to rotate, the third rack 50 can be driven to translate, the outer U-shaped plate 42 translates along with the first gear, and the inner U-shaped plate 43 is free from other forces, so that the outer U-shaped plate 42 and the inner U-shaped plate 43 synchronously extend out of the main box body 15 through the through hole 48, and one side of a bed sheet clamped between the outer U-shaped plate 42 and the inner U-shaped plate 43 is pulled to the upper side of the sickbed 1, which is back to the main box body 15; after one side of the inner U-shaped plate 43, which is connected with the third spring 40, abuts against the positioning rod 46, the inner U-shaped plate 43 can not extend out any more, but the outer U-shaped plate 42 can still extend out, and then the inner U-shaped plate 43 can move leftwards relative to the outer U-shaped plate 42 as shown in fig. 9 and 10, so that one side of the bed sheet clamped before can be loosened, the separation of the bed sheet from the device can be realized, and the bed sheet can directly fall on the cushion 2 of the sickbed 1 after falling.

After the bed sheet is tidied and leveled, the pedal 19 is loosened, the trapezoidal base 35 loses the ascending power, the trapezoidal base 35 begins to descend under the action of self gravity, the U-shaped frame 31 is driven to lose the interference effect on the abutting rod 29, the blocking block 27 moves downwards under the elastic force resetting effect of the first spring 28 until the opposite ends of the liquid discharge pipe 8 and the liquid feeding pipe 51 are blocked again, the third rotating shaft 45 descends along with the trapezoidal base 35, the first gear 24 is driven to move downwards along the fixed rack 14, the first gear 24 rotates reversely, and the outer U-shaped plate 42 and the inner U-shaped plate 43 are driven to retract and move towards the inside of the main box body 15; in the descending process of the trapezoid seat 35, the second gear 33 is driven to rotate reversely, and after the transmission of the belt transmission assembly 17, the third gear 37 is driven to rotate reversely, so that the first rack 36 and the lifting slat 18 can be driven to ascend, and the pedal 19 can be driven to ascend and reset; meanwhile, under the action of the gravity of a patient, the inserting plate 3 is pushed to descend, so that suction force is generated in the hydraulic cylinder 7, and the liquid in the liquid storage cylinder 12 returns to the hydraulic cylinder 7 through the return pipe 9 and the liquid discharge pipe 8 under the action of the orientation of the one-way valve 11; when the piston 5 descends to the initial position, the patient just descends to the bed sheet, then the lifting limiting cylinder 4 can not descend, namely the plugboard 3 can not descend, but the trapezoidal seat 35 still descends continuously, the plugboard 3 can be pulled to withdraw and move towards the main box body 15 until the plugboard resets, and then the bed sheet is replaced.

According to the invention, the structure design is ingenious, the linkage is strong, the operation is convenient, the labor consumption is low, the working efficiency is high, the patient does not need to be moved, and the pain and discomfort of the patient can be avoided; and a motor is not needed, a power supply is not depended on, and the application value is high.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides a patient is with exempting from to lift formula sheet quick automatic replacement device, a serial communication port, including the main tank body (15), be equipped with trapezoidal seat (35) that can go on the lift removal in the main tank body (15), the longitudinal section of trapezoidal seat (35) is trapezoidal, and the up end of trapezoidal seat (35) is the inclined plane, the up end of trapezoidal seat (35) is equipped with slope slide rail (38) along its up end slope, sliding connection has a slider (32) on slope slide rail (38), fixedly connected with picture peg (3) that the level set up on slider (32), opening (48) that supply picture peg (3) to pass and can the lift removal are seted up to one side of the main tank body (15), the low side position of the up end of trapezoidal seat (35) is in opening (48) place side, and the high-end position of the up end of trapezoidal seat (35) is in the opposite side that opening (48) place the side, the main box body (15) is provided with a first driving mechanism for driving the trapezoidal seat (35) to ascend, the outer side of the main box body (15) is provided with a limiting mechanism for blocking the insertion plate (3) to ascend at the early stage of ascending of the trapezoidal seat (35), and the upper part of the main box body (15) is provided with an unlocking mechanism for releasing the blocking effect of the limiting mechanism;

a bed sheet storage cavity (41) used for storing a bed sheet is formed in the lower portion of the inner portion of the trapezoidal seat (35), one side, facing the through opening (48), of the bed sheet storage cavity (41) penetrates through the corresponding side end face of the trapezoidal seat (35), the lower portion, corresponding to the side where the through opening (48) is located, of the main box body (15) is hinged to a switch door (26) aligned with the bed sheet storage cavity (41), a door handle (25) is fixed on the outer side face of the switch door (26), an outer U-shaped plate (42) capable of moving transversely is arranged at the top of the inner portion of the bed sheet storage cavity (41), a block of U-shaped plates (43) is connected below the outer U-shaped plate (42) in a sliding mode, the longitudinal sections of the outer U-shaped plate (42) and the inner U-shaped plate (43) are both in a U shape with downward openings, and the outer U-shaped plate (42) and the inner U-shaped plate (, outer U template (42) and interior U template (43) are connected with third spring (40) between one side of opening (48) dorsad, be equipped with on the main tank body (15) and be used for driving outer U template (42) outside second actuating mechanism who stretches out, in chamber (41) is deposited to the sheet one side of opening (48) is equipped with locating lever (46) that are located interior U template (43) below, locating lever (46) and trapezoidal seat (35) fixed connection.

2. The device for quickly and automatically replacing a patient bed sheet without lifting according to claim 1, wherein the first driving mechanism comprises a pedal (19) arranged at the lower part of the main box body (15) in a lifting manner, a lifting slat (18) vertically fixed on the pedal (19), a first rack (36) vertically fixed on one side of the lifting slat (18), a third gear (37) meshed with one side of the lower part of the first rack (36), a second rack (39) vertically fixed on one side of the trapezoidal seat (35) facing away from the through opening (48), a second gear (33) meshed with one side of the upper end of the second rack (39), and a belt transmission assembly (17) connected between the third gear (37) and the second gear (33), the side of the main box body (15) facing away from the through opening (48) is provided with a first accommodating cavity for accommodating the upper part of the lifting slat (18) and a second accommodating cavity for accommodating the second gear (33), wear to be equipped with on the axis of second gear (33) first pivot (16) with second gear (33) fixed connection, wear to be equipped with on the axis of third gear (37) second pivot (20) with third gear (37) fixed connection, the one end of first pivot (16) and second pivot (20) all extends to the outside of main tank body (15), and first pivot (16) and second pivot (20) all rotate with main tank body (15) and be connected, area drive assembly (17) are located between the outside end of first pivot (16) and second pivot (20).

3. The device for quickly and automatically replacing the lift-free bed sheet for the patient as claimed in claim 2, wherein a guide cylinder (22) which is vertically arranged and is positioned above the pedal (19) is fixedly connected to the bottom surface of the main box body (15), a guide rod (47) which vertically extends into the guide cylinder (22) is fixedly connected to the pedal (19), and the lower port of the guide cylinder (22) is just penetrated by the guide rod (47).

4. The device for quickly and automatically replacing a patient bed sheet without lifting as recited in claim 2, wherein a second spring (34) longitudinally connected to the lifting slat (18) is fixed to the top of the first cavity.

5. The device for quickly and automatically replacing a patient bed sheet without lifting is characterized in that a longitudinal sliding rail (30) for a trapezoidal seat (35) to longitudinally slide is fixed on the inner wall of the main box body (15) at the side opposite to the through opening (48).

6. The device for quickly and automatically replacing the lift-free bed sheet for the patient according to claim 1, wherein the limiting mechanism comprises a lifting limiting cylinder (4) sleeved on the outer side part of the inserting plate (3), a hydraulic cylinder (7) vertically connected to the upper end of the lifting limiting cylinder (4) and fixedly connected with the main box body (15), and a switch cylinder (10) fixed at the top of the main box body (15), a piston (5) vertically extending downwards and connected with the lifting limiting cylinder (4) is arranged in the hydraulic cylinder (7), a liquid discharge pipe (8) is connected between the upper end of the hydraulic cylinder (7) and the lower end of one side of the switch cylinder (10), a blocking block (27) used for blocking the liquid discharge pipe (8) is arranged at the inner bottom of the switch cylinder (10), a first spring (28) longitudinally connected to the blocking block (27) is connected to the inner top of the switch cylinder (10), two rows of rollers (49) which are respectively positioned at two opposite sides of the inserting plate (3) are arranged in the lifting limiting cylinder (4).

7. The device for quickly and automatically replacing the lift-free bed sheet for the patient according to claim 5, wherein the unlocking mechanism comprises a liquid storage cylinder (12) fixed at the top of the main box body (15), a touch rod (29) fixed on the bottom surface of the blocking block (27) and extending to the inner side of the main box body (15), and a U-shaped frame (31) fixedly connected to the trapezoidal seat (35), a liquid feeding pipe (51) communicated with the liquid storage cylinder (12) is connected to the lower end of one side of the switch cylinder (10) facing away from the liquid discharge pipe (8), a return pipe (9) is connected between the bottom of the liquid storage cylinder (12) and the liquid discharge pipe (8), one-way valves (11) are respectively arranged on the return pipe (9) and the liquid feeding pipe (51), the touch rod (29) longitudinally penetrates through the bottom of the switch cylinder (10) and the top of the main box body (15), and the U-shaped frame (31) is positioned right below the touch rod (29), the left side surface and the right side surface of the U-shaped frame (31) are both in a U shape with an opening facing downwards, and two ends of the U-shaped frame (31) are respectively fixed on the front side surface and the rear side surface of the trapezoidal seat (35).

8. The device for quickly and automatically replacing the lift-free bed sheet for the patient according to claim 1, wherein the second driving mechanism comprises a third rack (50) fixed on the upper end surface of the outer U-shaped plate (42), a fourth gear (44) meshed above the third rack (50), a first gear (24) coaxially connected with the fourth gear (44), and a fixed rack (14) capable of being meshed with the first gear (24), the fourth gear (44) is arranged inside the trapezoidal base (35), a third rotating shaft (45) fixedly connected with the fourth gear (44) penetrates through the axis of the fourth gear (44), two ends of the third rotating shaft (45) penetrate through the trapezoidal base (35) and are slidably connected with corresponding side panels of the main box body (15), strip-shaped chutes (6) for the third rotating shaft (45) to move up and down are formed on the corresponding side panels of the main box body (15), the bar-shaped sliding groove (6) penetrates through the inner side and the outer side of the main box body (15), at least one end of the third rotating shaft (45) is fixedly sleeved with a first gear (24), the fixed rack (14) is fixed on the outer surface of the main box body (15), and the fixed rack (14) is parallel to the bar-shaped sliding groove (6) and is positioned on one side of the upper portion of the bar-shaped sliding groove (6).

9. The device for quickly and automatically replacing the lift-free bed sheet for the patient as claimed in any one of claims 1 to 8, wherein four support legs (23) are connected to the bottom surface of the main box body (15), universal wheels (21) are mounted at the bottoms of the support legs (23), and a push-pull handle (13) is fixed to one side of the upper end of the main box body (15).