Disclosure of Invention
In order to overcome because the hand need incessantly remove, time a specified time, it is more hard, work efficiency is still low, and so need use a large amount of cotton swabs, the shortcoming of relatively wasting, the technical problem is: the utility model provides a device is paintd with medicament to gynaecology department's inspection that convenient is to paint the medicament, labour saving and time saving, and work efficiency is high, and does not waste the cotton swab.
The technical scheme is as follows: a device is paintd with medicament to gynaecology department's inspection, includes: the supporting bed plates are arranged on the buffering bottom columns at intervals; the safety shield is arranged on the support bed plate; the protective baffle is arranged on the supporting bed plate; the buffer bottom plate is arranged on the support bed plate in a sliding manner; the special-shaped guard rails are symmetrically and hinged on the supporting bed plate; the positioning marbles are symmetrically arranged on the supporting bed plate; the moving mechanism is arranged on the supporting bed plate and used for providing power; and the liquid scraping mechanism is arranged between the supporting bed plate and the moving mechanism and is used for smearing the medicament.
Further, the moving mechanism includes: the mounting bottom cover is mounted on the supporting bed board; the servo motor is arranged on the mounting bottom cover; the driving shaft is arranged on an output shaft of the servo motor; the guide screw rod is symmetrically and rotatably arranged on the mounting bottom cover; the transmission gear assembly is arranged between the two guide screw rods and the driving shaft; the guide iron block is arranged on the mounting bottom cover in a sliding manner; the first electromagnetic block is arranged on the mounting bottom cover; the first pressure sensor is arranged on the mounting bottom cover; the second pressure sensor is arranged on the mounting bottom cover; the second electromagnetic block is arranged on the mounting bottom cover; the guide cross rod is slidably mounted on the bottom cover and is rotationally connected with the guide iron block; the starting button is arranged on the protective baffle; and the stop button is arranged on the protective baffle.
Further, scrape liquid mechanism including: the guide rails are symmetrically arranged on the supporting bed plate; the L-shaped transverse moving block is arranged on one guide rail in a sliding mode and is fixedly connected with the guide cross rod; the hinged universal seat is arranged on the other guide rail in a sliding manner; the connecting cross rod is hinged on the hinged universal seat; the spring fixing block is arranged on the connecting cross rod in a sliding mode and is in sliding fit with the L-shaped transverse moving block; and the rubber scraper is arranged between the L-shaped transverse moving block and the connecting cross rod.
Further, still including discharge mechanism, discharge mechanism is including: the rack is arranged on one of the guide rails; the fixed transverse shaft is rotatably arranged on the L-shaped transverse moving block; the driven gear is arranged on the fixed transverse shaft; the column-equipped rotary table is arranged on the fixed transverse shaft; the liquid storage tank is arranged on the L-shaped transverse moving block; the one-way guide pipe is arranged on the L-shaped transverse moving block and is fixedly connected and communicated with the liquid storage tank; the lifting frame is slidably mounted on the liquid storage tank, the lifting frame is sleeved on the column-provided turntable, and the lifting frame is in sliding fit with the column-provided turntable; the return springs are symmetrically arranged between the lifting frame and the liquid storage tank and are wound on the one-way guide pipe; and the liquid outlet one-way valves are arranged on the one-way guide pipe at intervals and are communicated with each other.
Further, still including scribbling the mechanism, scribble the mechanism including: the spring guide columns are symmetrically and slidably arranged on the L-shaped transverse moving block; the lifting top plate is arranged between the two spring guide columns; the positioning transverse shaft is rotatably arranged on the L-shaped transverse moving block; the first transmission assembly is arranged between the positioning transverse shaft and the fixed transverse shaft; the slotted transmission shaft is rotatably arranged on the L-shaped transverse moving block; the bevel gear component is arranged between the slotted transmission shaft and the positioning transverse shaft; the meshing vertical shaft is rotatably arranged on the lifting top plate and sleeved on the slotted transmission shaft; the gull-wing top plate is arranged on the L-shaped transverse moving block; the fixed vertical shaft is rotatably arranged on the gull-wing top plate; the second transmission component is arranged between the fixed vertical shaft and the meshing vertical shaft; the driving ball disc is rotatably arranged on the gull wing top plate; the third transmission assembly is arranged between the driving ball disc and the fixed vertical shaft; the reversing ball disc is symmetrically and rotatably arranged on the gull wing top plate and is meshed with the driving ball disc; the driving worm is arranged on the reversing ball disc; the smearing brush wheels are rotatably arranged on the gull wing top plate at intervals; driven worm wheel, driven worm wheel install scribble brush wheel on, driven worm wheel and drive worm meshing.
Further, still including supporting mechanism, supporting mechanism is including: the supporting plate is hinged on the supporting bed plate; the sliding connecting block is arranged on the supporting plate in a sliding manner; the electric push rod is hinged on the supporting bed plate and is rotationally connected with the sliding connecting block; the buffer spring rods are symmetrically hinged on the support bed plate and are rotatably connected with the support plate; the lifting button is arranged on the protective baffle; and the descending button is arranged on the protective baffle.
Further, still including hand fixed establishment, hand fixed establishment is including: the sliding connecting plates are symmetrically and slidably arranged on the supporting plate; the lifting slide blocks are symmetrically and slidably supported on the bed plate; the supporting spring is arranged on the lifting slide block; the positioning transverse plate is arranged on the lifting slide block in a sliding manner and is rotatably connected with the sliding connecting plate.
The safety shield cover is characterized by further comprising an electric cabinet, wherein the electric cabinet is arranged on one side of the safety shield cover and internally comprises a switching power supply, a power supply module and a control module, the switching power supply supplies power to the whole equipment, the power supply module is connected with a main power switch through a circuit, and the control module is electrically connected with the power supply module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; the starting button, the stopping button, the rising button, the falling button, the first pressure sensor and the second pressure sensor are electrically connected with the control module, and the servo motor, the first electromagnetic block, the electric push rod and the second electromagnetic block are connected with the control module through a peripheral circuit.
The beneficial effects are that:
1. according to the invention, through the matching of the moving mechanism and the liquid scraping mechanism, an operator firstly lies on the buffer bottom plate, then extrudes the medicament onto the body, and starts the motor to enable the rubber scraper to move left and right to smear the medicament, so that the medicament can be conveniently smeared, the time and labor are saved, and the working efficiency is high.
2. The invention can discharge the medicament from the liquid outlet one-way valve through the one-way conduit under the action of the discharging mechanism, thus people do not need to extrude the medicament onto the body, and the invention is more convenient.
3. The invention can make the supporting plate swing upwards to carry out backrest under the action of the supporting mechanism, thus being convenient for people to carry out backrest.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial perspective view of the present invention.
Fig. 3 is an enlarged schematic view of part a of the present invention.
Fig. 4 is a partial perspective view of the moving mechanism of the present invention.
Fig. 5 is a schematic view of a first partially-separated body structure of the liquid scraping mechanism of the invention.
Fig. 6 is a schematic view of a second partially-separated body structure of the liquid scraping mechanism of the invention.
Fig. 7 is a schematic view of a first partially-separated body structure of the discharging mechanism of the present invention.
Fig. 8 is an enlarged view of part B of the present invention.
Fig. 9 is a schematic view of a second partially separated body structure of the discharging mechanism of the present invention.
Fig. 10 is a perspective view of a third part of the discharging mechanism of the present invention.
Fig. 11 is a schematic view of a first partial body structure of the application mechanism of the present invention.
Fig. 12 is an enlarged schematic view of part C of the present invention.
Fig. 13 is a schematic view of a second partial body structure of the application mechanism of the present invention.
Fig. 14 is a perspective view of a third portion of the applicator mechanism of the present invention.
Fig. 15 is a partial perspective view of the support mechanism of the present invention.
Fig. 16 is a partial perspective view of the hand fixing mechanism of the present invention.
Fig. 17 is a circuit block diagram of the present invention.
Fig. 18 is a schematic circuit diagram of the present invention.
Part names and serial numbers in the figure: 1_ support bed plate, 2_ buffer bottom column, 3_ safety shield, 4_ protective baffle, 5_ buffer bottom plate, 6_ shaped guard rail, 7_ positioning marble, 8_ electric cabinet, 9_ moving mechanism, 91_ mounting bottom cover, 92_ servo motor, 93_ drive shaft, 94_ transmission gear assembly, 95_ guide screw rod, 96_ guide iron block, 97_ first electromagnetic block, 98_ first pressure sensor, 99_ second pressure sensor, 910_ second electromagnetic block, 911_ guide cross bar, 912_ start button, 913_ stop button, 10_ liquid scraping mechanism, 101_ guide rail, 102_ L type traverse block, 103_ hinged universal seat, 104_ connecting cross bar, 105_ spring fixing block, 106_ rubber scraper, 11_ discharging mechanism, 111_ rack, 112_ driven gear, 113_ fixed cross shaft, 114_ column turntable, 115_ lifting frame, 116_ one-way conduit, 117_ liquid storage tank, 118_ return spring, 119_ liquid outlet check valve, 12_ smearing mechanism, 121_ lifting top plate, 122_ spring guide post, 123_ first transmission component, 124_ positioning transverse shaft, 125_ bevel gear component, 126_ slotted transmission shaft, 127_ meshing vertical shaft, 128_ second transmission component, 129_ fixing vertical shaft, 1210_ third transmission component, 1211_ gull wing top plate, 1212_ driving ball disc, 1213_ reversing ball disc, 1214_ driving worm, 1215_ driven worm wheel, 1216_ smearing brush wheel, 13_ supporting mechanism, 131_ supporting plate, 132_ sliding connecting block, 133_ electric push rod, 134_ buffer spring rod, 135_ lifting button, 136_ descending button, 14_ hand fixing mechanism, 141_ sliding connecting plate, 142_ positioning transverse plate, 143_ lifting slider, 144_ supporting spring.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1
A medicine smearing device for gynecological department examination is shown in figures 1-6, and comprises a supporting bed plate 1, a buffering bottom column 2, a safety shield 3, and a protective baffle 4, the novel liquid scraping bed comprises a buffer bottom plate 5, a special-shaped protective guard 6, positioning marbles 7, a moving mechanism 9 and a liquid scraping mechanism 10, wherein four buffer bottom posts 2 are arranged at the bottom of a support bed plate 1 at intervals, a safety shield 3 is fixedly connected to the bottom of the support bed plate 1, a protective baffle 4 is arranged at the left part of the support bed plate 1, the buffer bottom plate 5 is arranged in the support bed plate 1 in an inward sliding mode, the special-shaped protective guard 6 is arranged on the front side and the rear side of the right part of the support bed plate 1 in a hinged mode, the positioning marbles 7 are arranged on the front side and the rear side of the right part of the support bed plate 1, the positioning marbles 7 are located on the inner side of the special-shaped protective guard 6, the positioning marbles 7 are matched with the special-shaped protective guard 6, the moving mechanism 9 is arranged on the support bed plate 1, and the liquid scraping mechanism 10 is arranged between the support bed plate 1 and the moving mechanism 9.
The moving mechanism 9 comprises an installation bottom cover 91, a servo motor 92, a driving shaft 93, a transmission gear assembly 94, a guide screw rod 95, a guide iron block 96, a first electromagnetic block 97, a first pressure sensor 98, a second pressure sensor 99, a second electromagnetic block 910, a guide cross rod 911, a start button 912 and a stop button 913, the installation bottom cover 91 is fixedly connected to the rear middle side of the bottom of the support bed board 1, the servo motor 92 is arranged at the right part of the installation bottom cover 91, the driving shaft 93 is connected to an output shaft of the servo motor 92, the guide screw rod 95 is symmetrically and rotatably arranged on the installation bottom cover 91 in the front-back direction, the transmission gear assembly 94 is arranged between the left circumferential direction of the guide screw rods 95 at the front and back sides and the right circumferential direction of the driving shaft 93, the guide iron block 96 is slidably arranged at the upper part of the installation bottom cover 91, the first electromagnetic block 97 is arranged at the left rear side of the upper part of the installation bottom cover 91, the first pressure sensor 98 is arranged at the right rear side of the installation bottom cover 91, the installation end cover 91 upper portion left front side is equipped with second pressure sensor 99, and the installation end cover 91 upper portion right front side is equipped with second electromagnetism piece 910, and installation end cover 91 rear portion downside slidingtype is equipped with direction horizontal pole 911, and direction horizontal pole 911 rotates with guide iron block 96 to be connected, and the outer leading flank right side lower part of fender 4 is equipped with start button 912, and the outer leading flank right side lower part of fender 4 is equipped with stop button 913, and stop button 913 is located start button 912 left side.
The liquid scraping mechanism 10 comprises a guide rail 101, an L-shaped transverse moving block 102, a hinged universal seat 103, a connecting cross rod 104, a spring fixing block 105 and a rubber scraping plate 106, the guide rail 101 is fixedly connected to the front side and the rear side of the right portion of the supporting bed plate 1, the L-shaped transverse moving block 102 is arranged on the rear guide rail 101 in a sliding mode, the L-shaped transverse moving block 102 is fixedly connected with a guide cross rod 911, the hinged universal seat 103 is arranged on the front guide rail 101 in a sliding mode, the connecting cross rod 104 is arranged on the upper portion of the hinged universal seat 103 in a hinged mode, the spring fixing block 105 is arranged in the connecting cross rod 104 in a sliding mode, the spring fixing block 105 is in sliding fit with the L-shaped transverse moving block 102, and the rubber scraping plate 106 is arranged between the left side faces of the connecting cross rod 104 on the upper portion of the left side face of the L-shaped transverse moving block 102.
When a user presses a power supply main switch to electrify the smearing device, the first pressure sensor 98 and the second pressure sensor 99 start to work, firstly, an operator lies on the buffer bottom plate 5, then the medicine is extruded to the body, the start button 912 is pressed once, the start button 912 sends a signal, the control module receives the signal and controls the servo motor 92 to start, the servo motor 92 drives the driving shaft 93 to rotate, the driving shaft 93 rotates to drive the transmission gear assembly 94 to rotate, the transmission gear assembly 94 rotates to drive the guide screw rod 95 to rotate, the rear guide screw rod 95 rotates to drive the guide iron block 96 to move rightwards, the guide iron block 96 moves rightwards to drive the guide cross rod 911 to move rightwards, the guide cross rod 911 moves rightwards to drive the L-shaped transverse moving block 102 to move rightwards, the L-shaped transverse moving block 102 moves rightwards to cooperate with the connecting cross rod 104 to drive the rubber scraper 106 to move rightwards, and the rubber scraper 106 moves rightwards to smear the medicine, and the guiding iron block 96 contacts with the first pressure sensor 98 when moving to the right for the maximum stroke, the first pressure sensor 98 sends a signal, the control module receives the signal and controls the second electromagnetic block 910 to work, the second electromagnetic block 910 enables the guiding iron block 96 to swing forwards, the guiding iron block 96 swings backwards and is meshed with the front guiding screw rod 95, further the front guiding screw rod 95 rotates and drives the guiding iron block 96 to move leftwards, the rubber scraper 106 also moves leftwards and paints the medicament again, the guiding iron block 96 moves leftwards and contacts with the second pressure sensor 99 when moving to the maximum stroke, the second pressure sensor 99 sends a signal, the control module receives the signal and controls the first electromagnetic block 97 to work, the first electromagnetic block 97 enables the guiding iron block 96 to swing backwards, the guiding iron block 96 swings backwards and is meshed with the rear guiding screw rod 95, and the steps are repeated to paint the medicament continuously, after the medicine is coated, the stop button 913 is pressed once, the stop button 913 sends a signal, the control module receives the signal and controls the servo motor 92 to stop, the driving shaft 93 stops driving the guide screw 95 to rotate through the transmission gear assembly 94, and the rubber scraper 106 also stops moving left and right.
Example 2
On the basis of embodiment 1, as shown in fig. 7-14, the device further comprises a discharging mechanism 11, the discharging mechanism 11 comprises a rack 111, a driven gear 112, a fixed horizontal shaft 113, a column-equipped turntable 114, a lifting frame 115, a one-way conduit 116, a liquid storage tank 117, a return spring 118 and a liquid outlet one-way valve 119, the rack 111 is fixedly connected to the top of the rear guide rail 101, the fixed horizontal shaft 113 is rotatably connected to the lower right portion of the L-shaped traverse block 102, the driven gear 112 is fixedly connected to the front portion of the fixed horizontal shaft 113 in the circumferential direction, the driven gear 112 is engaged with the rack 111, the column-equipped turntable 114 is fixedly connected to the rear end of the fixed horizontal shaft 113, the liquid storage tank 117 is arranged on the lower portion of the outer rear side of the L-shaped traverse block 102, the one-way conduit 116 is arranged on the upper portion of the L-shaped traverse block 102, the one-way conduit 116 is fixedly connected and communicated with the liquid storage tank 117, the lifting frame 115 is slidably arranged on the upper portion of the liquid storage tank 117, the right portion of the lifting frame 115 is sleeved on the column-equipped with the column-equipped turntable 114, the lifting frame 115 is in sliding fit with the column-equipped turntable 114, the upper and lower parts of the left part of the lifting frame 115 and the inside of the liquid storage tank 117 are symmetrically provided with return springs 118, the return springs 118 are wound on a one-way guide pipe 116, and the front part of the one-way guide pipe 116 is provided with a liquid outlet one-way valve 119 at intervals and communicated with the liquid outlet one-way valve.
The smearing mechanism 12 is further included, the smearing mechanism 12 includes a lifting top plate 121, a spring guide post 122, a first transmission assembly 123, a positioning horizontal shaft 124, a bevel gear assembly 125, a slotted transmission shaft 126, an engaging vertical shaft 127, a second transmission assembly 128, a fixed vertical shaft 129, a third transmission assembly 1210, a gull wing top plate 1211, a driving ball disk 1212, a reversing ball disk 1213, a driving worm 1214, a driven worm wheel 1215 and a smearing brush wheel 1216, two spring guide posts 122 are slidably disposed on the right portion of the L-shaped traverse block 102, the lifting top plate 121 is disposed between the upper portions of the left and right spring guide posts 122, the positioning horizontal shaft 124 is rotatably disposed on the upper side of the right portion of the L-shaped traverse block 102, the first transmission assembly 123 is connected between the rear portion of the positioning horizontal shaft 124 and the rear portion of the fixed horizontal shaft 113 in the circumferential direction, the slotted transmission shaft 126 is rotatably disposed on the upper side of the right portion of the L-shaped traverse block 102, the bevel gear assembly 125 is connected between the lower portion of the slotted transmission shaft 126 and the rear portion of the positioning horizontal shaft 124 in the circumferential direction, the back part of the lifting top plate 121 is rotatably provided with an engaging vertical shaft 127, the engaging vertical shaft 127 is sleeved on a slotted transmission shaft 126, the front part of the right side surface of the L-shaped traverse block 102 is provided with a gull wing top plate 1211, the left part of the gull wing top plate 1211 is rotatably provided with a fixed vertical shaft 129, a second transmission assembly 128 is connected between the lower circumferential part of the fixed vertical shaft 129 and the lower circumferential part of the engaging vertical shaft 127, the right part of the gull wing top plate 1211 is rotatably provided with a driving ball disk 1212, a third transmission assembly 1210 is connected between the upper circumferential part of the driving ball disk 1212 and the upper circumferential part of the fixed vertical shaft 129, the front side and the rear side of the gull wing top plate 1211 are rotatably provided with reversing ball disks 1213, the reversing ball disks 1213 are engaged with the driving ball disks 1212, the outer end of the reversing ball disks 1213 is fixedly connected with a driving worm 1214, the gull wing top plate 1211 is rotatably provided with smearing brushes 1216 at intervals, the upper circumferential part of the smearing brushes 1216 is fixedly connected with a driven worm wheel 1215, and the driven worm wheel 1215 is engaged with the driving worm 1214.
Initially, a proper amount of medicine is filled in the liquid storage tank 117, after the smearing device is powered on, the starting button 912 is pressed once, the starting button 912 sends a signal, the control module receives the signal and controls the servo motor 92 to start, the L-shaped traverse block 102 moves left and right and enables the driven gear 112 to rotate repeatedly through the rack 111, the driven gear 112 rotates and drives the fixed transverse shaft 113 to rotate, the fixed transverse shaft 113 rotates and drives the belt column turntable 114 to rotate, the belt column turntable 114 rotates and drives the lifting frame 115 to move up and down, the lifting frame 115 moves up and down to discharge the medicine from the liquid outlet one-way valve 119 through the one-way conduit 116, the return spring 118 plays a buffering role, after the medicine smearing is completed, the stopping button 913 is pressed once, the stopping button 913 sends a signal, the control module receives the signal and controls the servo motor 92 to stop the driven gear 112 from driving the fixed transverse shaft 113 to rotate, and therefore, people do not need to squeeze the medicine onto the body, is more convenient.
When the smearing device is powered on, the starting button 912 is pressed once, the starting button 912 sends a signal, the control module receives the signal and controls the servo motor 92 to start, the fixed transverse shaft 113 also drives the first transmission component 123 to rotate, the first transmission component 123 drives the positioning transverse shaft 124 to rotate, the positioning transverse shaft 124 rotates and drives the slotted transmission shaft 126 to rotate through the bevel gear component 125, the slotted transmission shaft 126 rotates and drives the meshing vertical shaft 127 to rotate, the meshing vertical shaft 127 rotates and drives the second transmission component 128 to rotate, the second transmission component 128 rotates and drives the fixed vertical shaft 129 to rotate, the fixed vertical shaft 129 rotates and drives the third transmission component 1210 to rotate, the third transmission component 1210 rotates and drives the driving ball disc 1212 to rotate, the driving ball disc 1212 rotates and drives the reversing ball disc 1213 to rotate, the reversing ball disc 1213 rotates and drives the worm driving worm 1214 to rotate, the driving worm 1214 rotates and drives the driven worm wheel 1215 to rotate, the driven worm wheel 1215 rotates to drive the smearing brush wheel 1216 to rotate, the smearing brush wheel 1216 rotates to smear the medicament, when the medicament is smeared, the stop button 913 is pressed once, the stop button 913 sends a signal, the servo motor 92 is controlled to stop after the control module receives the signal, the fixed transverse shaft 113 stops driving the positioning transverse shaft 124 to rotate through the first transmission assembly 123, and the smearing brush wheel 1216 also stops rotating, so that the medicament is smeared more uniformly.
Example 3
On the basis of the embodiments 1 and 2, as shown in fig. 1, 15 and 16, the support device 13 further includes a support mechanism 13, the support mechanism 13 includes a support plate 131, a sliding connection block 132, an electric push rod 133, a buffer spring rod 134, an ascending button 135 and a descending button 136, the support plate 131 is hinged to the left portion of the support bed plate 1, the sliding connection block 132 is slidably disposed in the middle of the support plate 131, the electric push rod 133 is hinged to the middle of the left portion of the support bed plate 1, the electric push rod 133 is rotatably connected to the sliding connection block 132, the buffer spring rods 134 are symmetrically hinged to the front and back of the left portion of the support bed plate 1, the buffer spring rods 134 are rotatably connected to the support plate 131, the ascending button 135 is disposed at the upper right portion of the outer front side of the guard fence 4, the descending button 136 is disposed at the upper right portion of the outer front side of the guard fence 4, and the descending button 136 is located below the ascending button 135.
The hand fixing mechanism 14 comprises a sliding connecting plate 141, a positioning transverse plate 142, a lifting slider 143 and a supporting spring 144, the sliding connecting plate 141 is arranged on the front side and the rear side of the supporting plate 131 in a sliding mode, the lifting slider 143 is arranged on the front side and the rear side of the left portion of the supporting bed plate 1 in a sliding mode, the supporting spring 144 is arranged on the inner lower portion of the lifting slider 143, the positioning transverse plate 142 is arranged on the upper portion of the lifting slider 143 in a sliding mode, and the left portion of the positioning transverse plate 142 is rotatably connected with the right portion of the sliding connecting plate 141.
When a user lies on the buffer bottom plate 5, if the support plate 131 swings upwards to carry out backrest leaning, the ascending button 135 is pressed once, the ascending button 135 sends a signal, the control module receives the signal and then controls the electric push rod 133 to extend for 5 seconds, the electric push rod 133 enables the support plate 131 to swing upwards, the buffer spring rod 134 plays a buffer role, after 5 seconds, the control module controls the electric push rod 133 to close, if the support plate 131 swings downwards to reset, the descending button 136 is pressed once, the descending button 136 sends a signal, the control module receives the signal and then controls the electric push rod 133 to contract for 5 seconds, the electric push rod 133 enables the support plate 131 to swing downwards to reset, and after 5 seconds, the control module controls the electric push rod 133 to close, so that the backrest leaning can be conveniently carried out by the user.
When the supporting plate 131 swings upwards, the supporting plate 131 drives the positioning transverse plate 142 to move upwards for a certain distance through the sliding connecting plate 141, the supporting spring 144 plays a role in buffering, people can hold the hands onto the positioning transverse plate 142, the supporting plate 131 swings downwards to reset, the positioning transverse plate 142 also swings downwards to reset, and therefore people can conveniently place two hands.
As shown in fig. 1, 17 and 18, the safety shield comprises an electric cabinet 8, the electric cabinet 8 is installed on the right side of the front portion of the safety shield 3, the electric cabinet 8 comprises a switching power supply, a power supply module and a control module, the switching power supply supplies power to the whole equipment, the power supply module is connected with a power supply main switch through a circuit, and the control module is electrically connected with the power supply module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; the start button 912, the stop button 913, the ascending button 135, the descending button 136, the first pressure sensor 98 and the second pressure sensor 99 are electrically connected with the control module, and the servo motor 92, the first electromagnetic block 97, the electric push rod 133 and the second electromagnetic block 910 are connected with the control module through peripheral circuits.
The embodiments described above are provided to enable persons skilled in the art to make or use the invention and that modifications or variations can be made to the embodiments described above by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of protection of the present invention is not limited by the embodiments described above but should be accorded the widest scope consistent with the innovative features set forth in the claims.