CN111956911A

CN111956911A - Syringe recovery unit

Info

Publication number: CN111956911A
Application number: CN202010834461.4A
Authority: CN
Inventors: 王琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2020-11-20

Abstract

The invention relates to the field of medical instruments, in particular to an injector recovery device. The technical problem of the invention is as follows: a syringe recovery device is provided. The technical scheme is as follows: a syringe recovery device comprises a base, a control screen, a bidirectional drawing-off mechanism, a rubber piston separating mechanism and a cleaning mechanism; the base is connected with the control screen; the base is connected with the bidirectional drawing mechanism; the base is connected with the rubber piston separating mechanism; the base is connected with the cleaning mechanism; the bidirectional drawing mechanism is connected with the rubber piston separating mechanism; the bidirectional drawing mechanism is connected with the cleaning mechanism; the rubber piston separating mechanism is connected with the cleaning mechanism. The invention realizes the separation of the piston shaft and the rubber piston after the piston shaft and the hollow cylinder are separated, saves the labor and time for recovering the syringe and greatly improves the recovery efficiency.

Description

Syringe recovery unit

Technical Field

The invention relates to the field of medical instruments, in particular to an injector recovery device.

Background

The syringe is a common medical apparatus, the syringe is used in a large amount, and a large amount of plastic, rubber and other materials are consumed during production.

The waste injector belongs to recyclable garbage and has recycling value, the hollow cylinder in the waste injector can be recycled to be used as recycled plastic particles, and the rubber piston on the piston shaft can also be recycled to be used as recycled rubber raw materials such as rubber particles and rubber powder, so that the waste injector can be recycled.

After the injector is used, the injector is usually directly discarded, which not only causes great resource waste, but also affects environmental sanitation; when the syringe is recovered, the rubber piston is sleeved on the piston shaft, manual separation is usually adopted, time and labor are wasted, and the recovery difficulty is increased.

There is a need to develop a syringe retrieval device that overcomes the above problems.

Disclosure of Invention

In order to overcome the defect that the syringe is usually discarded directly after being used, which not only causes great resource waste, but also influences environmental sanitation; when the syringe is recovered, the rubber piston is sleeved on the piston shaft, manual separation is usually adopted, time and labor are wasted, and the recovery difficulty is increased.

The technical scheme is as follows: a syringe recovery device comprises a base, a control screen, a bidirectional drawing-off mechanism, a rubber piston separating mechanism and a cleaning mechanism; the base is connected with the control screen; the base is connected with the bidirectional drawing mechanism; the base is connected with the rubber piston separating mechanism; the base is connected with the cleaning mechanism; the bidirectional drawing mechanism is connected with the rubber piston separating mechanism; the bidirectional drawing mechanism is connected with the cleaning mechanism; the rubber piston separating mechanism is connected with the cleaning mechanism.

More preferably, the bidirectional drawing mechanism further comprises a first gear, a first rotating shaft, a first bevel gear, a second rotating shaft, a supporting table, a first driving lever, a third bevel gear, a fourth bevel gear, a fifth rotating shaft, a fifth bevel gear, a sixth bevel gear, a second gear, a third gear, a sixth rotating shaft, a first supporting plate, a rotating disc, a first sliding block, a first connecting rod, a second connecting rod, a limiting rod, a second driving lever, a spring knife, a first sliding rail, a second sliding rail, a fixed block and a first driving rod; the first gear is in rotary connection with the first rotating shaft; the outer surface of the first rotating shaft is in rotating connection with the inner axis of the first bevel gear; the first bevel gear is meshed with the second bevel gear; the inner axis of the second bevel gear is rotationally connected with the outer surface of the second rotating shaft; the outer surface of the second rotating shaft is rotatably connected with the supporting platform; the outer surface of the second rotating shaft is in transmission connection with the first deflector rod; the outer surface of the second rotating shaft is rotationally connected with the third bevel gear; the outer surface of the second rotating shaft is rotationally connected with the second gear; the support platform is inserted with the first connecting rod through the bracket; the support table is inserted with the second connecting rod through the bracket; the supporting table is welded with the limiting rod; the support table is inserted with the second deflector rod; the support table is welded with the first slide rail; the support table is welded with the second slide rail; the third bevel gear is meshed with the fourth bevel gear; the inner axis of the fourth bevel gear is rotationally connected with the outer surface of the fifth rotating shaft; the outer surface of the fifth rotating shaft is in rotating connection with the inner axis of the fifth bevel gear; the fifth bevel gear is meshed with the sixth bevel gear; the outer ring surface of the second gear is in transmission connection with the third gear through a chain; the third gear is in rotary connection with the sixth rotating shaft; the sixth rotating shaft is rotatably connected with the first supporting plate; the sixth rotating shaft is rotatably connected with the rotating disc; the turntable is welded with the fixed block; the turntable is in transmission connection with the first transmission rod; the first sliding block is in transmission connection with the first transmission rod; the first sliding block is in sliding connection with the first connecting rod; the first sliding block is in sliding connection with the second connection; the second deflector rod is in transmission connection with the spring knife; the first gear is connected with the cleaning mechanism; the outer surface of the first rotating shaft is rotatably connected with the base; the first supporting plate is welded with the rubber piston separating mechanism; the second gear is rotatably connected with the base; the third gear is connected with the base in a rotating mode.

More preferably, the rubber piston separating mechanism further comprises a seventh bevel gear, an eighth bevel gear, a seventh rotating shaft, a ninth bevel gear, a tenth bevel gear, a ninth rotating shaft, a fourth gear, a fifth gear, a sixth gear, a tenth rotating shaft, a third shifting lever, a fourth shifting lever, a second sliding block, a third connecting rod, a first clamp, a seventh gear, an eighth gear, an eleventh rotating shaft, a fifth shifting lever, a sixth shifting lever, a third sliding block, a fourth connecting rod, a second clamp, a bottom plate, a protective housing, a twelfth rotating shaft, an eleventh bevel gear, a twelfth bevel gear, a thirteenth rotating shaft, a sieve plate and a spring knife; the seventh bevel gear is meshed with the eighth bevel gear; the inner axis of the eighth bevel gear is rotationally connected with the outer surface of the seventh rotating shaft; the outer surface of the seventh rotating shaft is rotatably connected with the inner axis of the ninth bevel gear; the ninth bevel gear is meshed with the tenth bevel gear; the inner axis of the tenth bevel gear is rotationally connected with the outer surface of the ninth rotating shaft; the outer surface of the ninth rotating shaft is rotationally connected with the fourth gear; the outer surface of the ninth rotating shaft is rotationally connected with the fifth gear; the outer surface of the ninth rotating shaft is rotatably connected with the bottom plate through a bracket; the fourth gear is meshed with the seventh gear; the fifth gear is meshed with the sixth gear; the sixth gear is in rotary connection with the outer surface of the tenth rotating shaft; the outer surface of the tenth rotating shaft is rotatably connected with the bottom plate through a bracket; the outer surface of the tenth rotating shaft is in transmission connection with a third deflector rod; the fourth deflector rod is spliced with the bottom plate; the second sliding block is in sliding connection with the bottom plate; the second sliding block is welded with the third connecting rod; the third connecting rod is welded with the first clamp; the seventh gear is rotationally connected with the bottom plate through a round rod; the seventh gear is meshed with the eighth gear; the eighth gear is in rotary connection with the outer surface of the eleventh rotating shaft; the outer surface of the eleventh rotating shaft is rotatably connected with the bottom plate through a bracket; the outer surface of the eleventh rotating shaft is in transmission connection with the fifth driving lever; the sixth deflector rod is inserted with the bottom plate; the third sliding block is in sliding connection with the bottom plate; the third sliding block is welded with the fourth connecting rod; the fourth connecting rod is welded with the second clamp; the bottom plate is connected with the protective shell; the twelfth rotating shaft is in rotating connection with the eleventh bevel gear; the twelfth rotating shaft is rotatably connected with the sieve plate through a connecting rod; the twelfth rotating shaft is rotatably connected with the rotary cutter; the eleventh bevel gear is meshed with the twelfth bevel gear; the inner axis of the twelfth bevel gear is rotationally connected with the outer surface of the thirteenth rotating shaft; the sieve plate is connected with the base; the sieve plate is welded with the first supporting plate; the sieve plate is connected with the cleaning mechanism; the seventh bevel gear is connected with the cleaning mechanism.

More preferably, the cleaning mechanism further comprises a motor, a fourteenth rotating shaft, a ninth gear, a tenth gear, a fifteenth rotating shaft, a thirteenth bevel gear, a fourteenth bevel gear, a sixteenth rotating shaft, a fifteenth bevel gear, a sixteenth bevel gear, a seventeenth rotating shaft, a first cleaning barrel, a seventeenth bevel gear, an eighteenth rotating shaft, an eighteenth bevel gear, a nineteenth rotating shaft and a second cleaning barrel; the motor is rotationally connected with the fourteenth rotating shaft; the outer surface of the fourteenth rotating shaft is rotationally connected with the ninth gear; the ninth gear is meshed with the tenth gear; the tenth gear is in rotary connection with the outer surface of the fifteenth rotating shaft; the outer surface of the fifteenth rotating shaft is in rotating connection with the inner axis of the thirteenth bevel gear; the thirteenth bevel gear is meshed with the fourteenth bevel gear; the thirteenth bevel gear is meshed with the seventeenth bevel gear; the inner axis of the fourteenth bevel gear is rotationally connected with the outer surface of the sixteenth rotating shaft; the outer surface of the sixteenth rotating shaft is in rotating connection with the inner axis of the fifteenth bevel gear; the fifteenth bevel gear is meshed with the sixteenth bevel gear; the inner axis of the sixteenth bevel gear is rotationally connected with the outer surface of the seventeenth rotating shaft; the seventeenth rotating shaft is rotatably connected with the first cleaning barrel; the inner axis of the seventeenth bevel gear is rotatably connected with the outer surface of the eighteenth rotating shaft; the outer surface of the eighteenth rotating shaft is in rotating connection with the inner axis of the eighteenth bevel gear; the eighteenth bevel gear is meshed with the nineteenth bevel gear; the inner axis of the nineteenth bevel gear is rotationally connected with the outer surface of the nineteenth rotating shaft; the nineteenth rotating shaft is rotationally connected with the second cleaning barrel; the ninth gear is meshed with the first gear; the seventeenth rotating shaft is rotatably connected with the base; the nineteenth rotating shaft is rotatably connected with the base; the outer surface of the eighteenth rotating shaft is in rotating connection with the inner axis of the seventh bevel gear; the motor is connected with the base; the second cleaning barrel is spliced with the sieve plate.

More preferably, a chute is provided above the support table.

More preferably, a circle of torsion spring is wound on the round rod connecting the second shift lever and the support platform. More preferably, a pogo pin is provided below the first slider.

More preferably, two sides of one side of the second sliding block opposite to the fifth gear are respectively provided with two convex blocks, the two convex blocks are horizontally opposite, two sides of one side of the third sliding block opposite to the eighth gear are respectively provided with two convex blocks, and the two convex blocks are horizontally aligned.

Compared with the prior art, the invention has the following advantages:

for solving the problems: in the prior art, after the injector is used, the injector is usually directly discarded, which not only causes great resource waste, but also influences environmental sanitation; when the injector is recovered, the rubber piston is sleeved on the piston shaft, and manual separation is usually adopted, so that time and labor are wasted, and the recovery difficulty is increased;

the design is as follows: before use, an operator or a mechanical arm firstly places the waste syringe on an inclined opening of a chute of the bidirectional drawing mechanism to enable the syringe to naturally roll down to the chute, then the power is switched on, the control screen operates, then the bidirectional drawing mechanism can separate a piston shaft of the waste syringe from an empty cylinder, the empty cylinder and the piston shaft can respectively fall to cleaning barrels arranged at two sides of the bidirectional drawing mechanism by the cleaning mechanism, when the piston shaft does not fall to the cleaning barrels, the rubber piston separating mechanism can clamp the piston shaft, then pry a rubber piston head open, then the piston shaft falls to the cleaning barrels, then disinfectant is filled in the two cleaning barrels, and the cleaning mechanism completes disinfection and cleaning of the empty cylinder and the piston shaft by rotating the two cleaning barrels;

the invention realizes that: the piston shaft and the rubber piston are separated after the piston shaft and the empty cylinder are separated, so that the labor and time for recovering the syringe are saved, and the recovery efficiency is greatly improved.

Drawings

FIG. 1 is a schematic perspective view of a first embodiment of the present invention;

FIG. 2 is a schematic perspective view of a second embodiment of the present invention;

FIG. 3 is a schematic perspective view of a first bi-directional pumping mechanism according to the present invention;

FIG. 4 is a schematic perspective view of a second bi-directional pumping mechanism according to the present invention;

FIG. 5 is a schematic diagram of a first three-dimensional structure of the rubber piston separating mechanism of the present invention;

FIG. 6 is a schematic diagram of a second perspective structure of the rubber piston separating mechanism of the present invention;

FIG. 7 is a schematic view of a first perspective view of the cleaning mechanism of the present invention;

FIG. 8 is a schematic perspective view of a first slider and a pogo pin according to the present invention;

fig. 9 is a schematic perspective view of the shift lever of the present invention.

The parts are labeled as follows: 1. a base, 2, a control screen, 3, a bidirectional drawing mechanism, 4, a rubber piston separating mechanism, 5, a cleaning mechanism, 301, a first gear, 302, a first rotating shaft, 303, a first bevel gear, 304, a second bevel gear, 305, a second rotating shaft, 306, a supporting table, 307, a first deflector rod, 308, a third bevel gear, 309, a fourth bevel gear, 3010, a fifth rotating shaft, 3011, a fifth bevel gear, 3012, a sixth bevel gear, 3013, a second gear, 3014, a third gear, 3015, a sixth rotating shaft, 3016, a first supporting plate, 3017, a rotating disc, 3018, a first slider, 3019, a first connecting rod, 3020, a second connecting rod, 3021, a limiting rod, 3022, a second deflector rod, 3023, a spring knife, 3024, a first sliding rail, 3025, a second sliding rail, 3026, 3027, a first transmission rod, 401, a seventh bevel gear, 402, an eighth bevel gear, 403, a seventh rotating shaft, a fixed block, 404, a ninth bevel gear, 405. a tenth bevel gear 406, a ninth rotating shaft 407, a fourth gear 408, a fifth gear 409, a sixth gear 4010, a tenth rotating shaft 4011, a third lever 4012, a fourth lever 4013, a second slider 4014, a third connecting rod 4015, a first clamp, 4016, a seventh gear 4017, an eighth gear 4018, an eleventh rotating shaft 4019, a fifth lever 4020, a sixth lever 4021, a third slider, 4022, a fourth connecting rod 4023, a second clamp, 4024, a base plate 4025, a protective housing, 4026, a twelfth rotating shaft, 4027, an eleventh bevel gear 4028, a twelfth bevel gear, 4029, a thirteenth rotating shaft 4030, a sieve plate, 4031, a rotary knife, 501, a motor, 502, a fourteenth rotating shaft, 503, a ninth gear, 504, a tenth gear, 505, a fifteenth rotating shaft, 506, a thirteenth gear, 507, a fourteenth bevel gear 509, a sixteenth rotating shaft, a fifteenth gear, a fifteenth rotating shaft, a 507, a fifteenth gear, 5010. a sixteenth bevel gear 5011, a seventeenth rotating shaft 5012, a first cleaning barrel 5013, a seventeenth bevel gear 5014, an eighteenth rotating shaft 5015, an eighteenth bevel gear 5016, a nineteenth bevel gear 5017, a nineteenth rotating shaft 5018, and a second cleaning barrel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

An injector recovery device is shown in figures 1-9 and comprises a base 1, a control screen 2, a bidirectional drawing-off mechanism 3, a rubber piston separating mechanism 4 and a cleaning mechanism 5; the base 1 is connected with the control screen 2; the base 1 is connected with a bidirectional drawing mechanism 3; the base 1 is connected with a rubber piston separating mechanism 4; the base 1 is connected with a cleaning mechanism 5; the bidirectional drawing mechanism 3 is connected with the rubber piston separating mechanism 4; the bidirectional drawing mechanism 3 is connected with the cleaning mechanism 5; the rubber piston separating mechanism 4 is connected with the cleaning mechanism 5.

Before use, an operator or a mechanical arm firstly places the waste injector on an inclined opening of a chute of the bidirectional drawing-off mechanism 3 to enable the injector to naturally roll down to the chute, then the power is switched on, the control screen 2 operates, then the bidirectional drawing-off mechanism 3 can separate a piston shaft of the waste injector from an empty cylinder, the empty cylinder and the piston shaft can respectively fall to cleaning barrels arranged at two sides of the bidirectional drawing-off mechanism 3 of the cleaning mechanism 5, when the piston shaft does not fall to the cleaning barrels, the piston shaft can be clamped by the rubber piston separating mechanism 4, then a rubber piston head is pried, then the piston shaft falls to the cleaning barrels, then disinfectant is filled into the two cleaning barrels, and the cleaning mechanism 5 completes disinfection and cleaning of the empty cylinder and the piston shaft by rotating the two cleaning barrels; the invention realizes the separation of the piston shaft and the rubber piston after the piston shaft and the hollow cylinder are separated, saves the labor and time for recovering the syringe and greatly improves the recovery efficiency.

The bidirectional withdrawing mechanism 3 further includes a first gear 301, a first rotating shaft 302, a first bevel gear 303, a second bevel gear 304, a second rotating shaft 305, a supporting table 306, a first driving lever 307, a third bevel gear 308, a fourth bevel gear 309, a fifth rotating shaft 3010, a fifth bevel gear 3011, a sixth bevel gear 3012, a second gear 3013, a third gear 3014, a sixth rotating shaft 3015, a first supporting plate 3016, a rotary table 3017, a first slider 3018, a first connecting rod 3019, a second connecting rod 3020, a limiting rod 3021, a second driving lever 3022, a pogo pin 3023, a first sliding rail 3024, a second sliding rail 3025, a fixed block 3026, and a first driving rod 3027; the first gear 301 is in rotational connection with a first rotating shaft 302; the outer surface of the first rotating shaft 302 is rotatably connected with the inner axis of the first bevel gear 303; the first bevel gear 303 meshes with the second bevel gear 304; the inner axis of the second bevel gear 304 is rotatably connected with the outer surface of the second rotating shaft 305; the outer surface of the second rotating shaft 305 is rotatably connected with the supporting table 306; the outer surface of the second rotating shaft 305 is in transmission connection with a first driving lever 307; the outer surface of the second rotating shaft 305 is rotatably connected with a third bevel gear 308; the outer surface of the second rotating shaft 305 is rotatably connected with the second gear 3013; the support table 306 is inserted into the first connecting rod 3019 through a bracket; the support table 306 is inserted into the second connecting rod 3020 through a bracket; the support table 306 is welded with the limiting rod 3021; the support table 306 is inserted into the second shift lever 3022; the support table 306 is welded with the first slide rail 3024; the support table 306 is welded with the second slide rail 3025; the third bevel gear 308 meshes with the fourth bevel gear 309; the inner axis of the fourth bevel gear 309 is rotatably connected with the outer surface of the fifth rotating shaft 3010; the outer surface of the fifth rotating shaft 3010 is rotatably connected with the inner axis of the fifth bevel gear 3011; fifth bevel gear 3011 meshes with sixth bevel gear 3012; the outer ring surface of the second gear 3013 is in transmission connection with a third gear 3014 through a chain; the third gear 3014 is rotatably connected to the sixth rotating shaft 3015; the sixth rotating shaft 3015 is rotatably connected to the first supporting plate 3016; the sixth rotating shaft 3015 is connected with the rotary disc 3017 in a rotating manner; the rotary table 3017 is welded with the fixed block 3026; the rotary table 3017 is in transmission connection with a first transmission rod 3027; the first slider 3018 is in transmission connection with the first transmission rod 3027; the first slider 3018 is connected to the first connecting rod 3019 in a sliding manner; the first slider 3018 is in sliding connection with the second link; the second driving lever 3022 is in transmission connection with the spring knife 3023; the first gear 301 is connected with the cleaning mechanism 5; the outer surface of the first rotating shaft 302 is rotatably connected with the base 1; the first supporting plate 3016 is welded to the rubber piston separating mechanism 4; the second gear 3013 is connected with the base 1 in a rotating way; the third gear 3014 is rotatably connected to the base 1.

Firstly, the needle hole of the injector is placed on the inclined opening of the chute of the supporting platform 306 facing the direction of the first sliding rail 3024, then the power is switched on, the motor 501 operates to drive the fourteenth rotating shaft 502 to rotate, the fourteenth rotating shaft 502 drives the ninth gear 503 to rotate, the ninth gear 503 drives the first gear 301 to rotate counterclockwise, the first gear 301 drives the first rotating shaft 302 to rotate counterclockwise, the first rotating shaft 302 drives the first bevel gear 303 to rotate counterclockwise, the first bevel gear 303 drives the second bevel gear 304 to rotate clockwise, the second bevel gear 304 drives the second rotating shaft 305 to rotate clockwise, the second rotating shaft 305 drives the first deflector rod 307, the third bevel gear 308 and the second gear 3013 to rotate clockwise simultaneously, when the first deflector rod 307 rotates clockwise until the longer side of the seven-shaped second deflector rod 3022 is hit, the longer side of the second deflector rod 3022 is pressed downwards to drive the second deflector rod 3022 to swing counterclockwise and drive the spring knife 3023 to transmit, the spring knife 3023 can collide with the elliptic handle at the tail end of the empty syringe barrel to drive the empty syringe barrel to push forward; meanwhile, the second gear 3013 drives the third gear 3014 to rotate clockwise through a chain, the third gear 3014 drives the sixth rotating shaft 3015 to rotate clockwise, the sixth rotating shaft 3015 drives the rotary table 3017 to rotate clockwise, the rotary table 3017 drives the fixed block 3026 to rotate clockwise around the sixth rotating shaft 3015, the fixed block 3026 drives the first transmission rod 3027 to transmit, the first transmission rod 3027 drives the first slider 3018 to advance to the piston handle of the syringe on the first connecting rod 3019 and the second connecting rod 3020, the spring knife 3023 under the first slider 3018 will block the piston handle on the piston shaft, when the rotary table 3017 has rotated a circle and simultaneously drives the fixed block 3026 to reset, the fixed block 3026 drives the first transmission rod 3027 to transmit, the first transmission rod 3027 drives the first slider 3018 to move back, the spring knife 3023 under the first slider 3018 will drive the piston shaft to move back, because the spring 3023 drives the empty cylinder to push and then the first slider 3018 to drive the piston shaft to move back, the empty cylinder of the injector is separated from the piston shaft by two forces in opposite directions, then the empty cylinder is pushed to a first slide rail 3024 by a spring knife 3023 and then slides to a first cleaning barrel 5012, at this time, when the first driving lever 307 is continuously rotated until the empty cylinder is separated from the longer side of the second driving lever 3022, a torsion spring arranged on a round bar connecting the second driving lever 3022 and a support table 306 is retracted to drive the second driving lever 3022 to rotate reversely until the limit lever 3021 is reset, meanwhile, the piston shaft is brought to a second slide rail 3025 by a first slider 3018, the second slide rail 3025 causes the piston shaft to slide to the second cleaning barrel 5018, but before that, the second rotating shaft 305 drives a third bevel gear 308 to rotate clockwise, the third bevel gear 308 drives a fourth bevel gear 309 to rotate counterclockwise, the fourth bevel gear 309 drives a fifth rotating shaft 3010 to rotate counterclockwise, the fifth rotating shaft 3010 drives the fifth bevel gear 3011 to rotate counterclockwise, the fifth bevel gear 3011 drives a sixth bevel gear 3012 to rotate clockwise, the sixth bevel gear 3012 drives the thirteenth rotating shaft 4029 to rotate clockwise, the thirteenth rotating shaft 4029 drives the twelfth bevel gear 4028 to rotate clockwise, the twelfth bevel gear 4028 drives the eleventh bevel gear 4027 to rotate counterclockwise, the eleventh bevel gear 4027 drives the twelfth rotating shaft 4026 to rotate counterclockwise, the twelfth rotating shaft 4026 drives the rotary cutter 4031 to rotate counterclockwise, the rotary cutter 4031 can pry open the rubber piston head sleeved on the piston shaft, and the piston shaft slides to the second cleaning barrel 5018; the separation of the syringe piston shaft and the empty cylinder is realized.

The rubber piston separating mechanism 4 further comprises a seventh bevel gear 401, an eighth bevel gear 402, a seventh rotating shaft 403, a ninth bevel gear 404, a tenth bevel gear 405, a ninth rotating shaft 406, a fourth gear 407, a fifth gear 408, a sixth gear 409, a tenth rotating shaft 4010, a third shifting rod 4011, a fourth shifting rod 4012, a second slider 4013, a third connecting rod 4014, a first clamp 4015, a seventh gear 4016, an eighth gear 4017, an eleventh rotating shaft 4018, a fifth shifting rod 4019, a sixth shifting rod 4020, a third slider 4021, a fourth connecting rod 4022, a second clamp 4023, a bottom plate 4024, a protective housing 4025, a twelfth rotating shaft 4026, an eleventh bevel gear 7, a twelfth bevel gear 4028, a thirteenth rotating shaft 4029, a sieve plate 4030 and a spring knife 3023; the seventh bevel gear 401 is meshed with the eighth bevel gear 402; the inner axis of the eighth bevel gear 402 is rotatably connected with the outer surface of the seventh rotating shaft 403; the outer surface of the seventh rotating shaft 403 is rotatably connected with the inner axis of the ninth bevel gear 404; the ninth bevel gear 404 meshes with the tenth bevel gear 405; the inner axis of the tenth bevel gear 405 is rotatably connected with the outer surface of the ninth rotating shaft 406; the outer surface of the ninth rotating shaft 406 is rotatably connected with a fourth gear 407; the outer surface of the ninth rotating shaft 406 is rotatably connected with a fifth gear 408; the outer surface of the ninth rotating shaft 406 is rotatably connected with the bottom plate 4024 through a bracket; the fourth gear 407 meshes with the seventh gear 4016; the fifth gear 408 meshes with the sixth gear 409; the sixth gear 409 is rotatably connected with the outer surface of the tenth rotating shaft 4010; the outer surface of the tenth rotating shaft 4010 is rotatably connected with the bottom plate 4024 through a bracket; the outer surface of the tenth rotating shaft 4010 is in transmission connection with a third shifting rod 4011; the fourth shifting rod 4012 is inserted into the bottom plate 4024; the second sliding block 4013 is in sliding connection with the base plate 4024; the second slide block 4013 is welded to the third connecting rod 4014; the third connecting rod 4014 is welded to the first clamp 4015; the seventh gear 4016 is rotatably connected with the bottom plate 4024 through a round rod; the seventh gear 4016 meshes with the eighth gear 4017; the eighth gear 4017 is rotatably connected with the outer surface of the eleventh rotating shaft 4018; the outer surface of the eleventh rotating shaft 4018 is rotatably connected with the bottom plate 4024 through a bracket; the outer surface of the eleventh rotating shaft 4018 is in transmission connection with a fifth shifting rod 4019; the sixth driving lever 4020 is inserted into the bottom plate 4024; the third slider 4021 is connected with the bottom plate 4024 in a sliding manner; the third slider 4021 is welded to the fourth connecting rod 4022; the fourth connecting rod 4022 is welded with the second clamp 4023; the base plate 4024 is connected with the protective housing 4025; the twelfth rotating shaft 4026 is in rotational connection with an eleventh bevel gear 4027; the twelfth rotating shaft 4026 is rotatably connected with the sieve plate 4030 through a connecting rod; the twelfth rotating shaft 4026 is rotatably connected with the rotating knife 4031; the eleventh bevel gear 4027 meshes with the twelfth bevel gear 4028; the inner axis of the twelfth bevel gear 4028 is rotationally connected with the outer surface of the thirteenth rotating shaft 4029; the sieve plate 4030 is connected with the base 1; the sieve plate 4030 is welded with the first supporting plate 3016; the sieve plate 4030 is connected with the cleaning mechanism 5; the seventh bevel gear 401 is connected to the cleaning mechanism 5.

When the piston shaft slides down to the second cleaning barrel 5018, the motor 501 operates to drive the fourteenth rotating shaft 502 to rotate, the fourteenth rotating shaft 502 drives the ninth gear 503 to rotate, the ninth gear 503 drives the tenth gear 504 to rotate counterclockwise, the tenth gear 504 drives the fifteenth rotating shaft 505 to rotate counterclockwise, the fifteenth rotating shaft 505 drives the thirteenth bevel gear 506 to rotate counterclockwise, the thirteenth bevel gear 506 drives the seventeenth bevel gear 5013 to rotate clockwise, the seventeenth bevel gear 5013 drives the eighteenth rotating shaft 5014 to rotate clockwise, the eighteenth rotating shaft 5014 drives the seventh bevel gear 401 to rotate clockwise, the seventh bevel gear 401 drives the eighth bevel gear 402 to rotate counterclockwise, the eighth bevel gear 402 drives the seventh rotating shaft 403 to rotate counterclockwise, the seventh rotating shaft 403 drives the ninth bevel gear 404 to rotate counterclockwise, the ninth bevel gear 404 drives the tenth bevel gear 405 to rotate clockwise, the tenth bevel gear 405 drives the ninth rotating shaft 406 to rotate clockwise, the ninth rotating shaft 406 simultaneously drives the fourth gear 407 and the fifth gear 408 to rotate clockwise, the fifth gear 408 drives the sixth gear 409 to rotate counterclockwise, the sixth gear 409 drives the tenth rotating shaft 4010 to rotate counterclockwise, the tenth rotating shaft 4010 drives the third shifting rod 4011 to rotate counterclockwise, when the third shifting rod 4011 rotates until the upper convex cylinder impacts the shorter side of the seventh shifting rod 4012, the fourth shifting rod 4012 presses down to drive the longer side of the fourth shifting rod 4012 to swing clockwise until the longer side of the fourth shifting rod 4012 impacts the convex block on the side of the second sliding block 4013 opposite to the third sliding block 4021, the second sliding block 4013 and the third connecting rod 4014 are driven to slide towards the third sliding block 4021, meanwhile, the fourth gear 407 drives the seventh gear 4016 to rotate counterclockwise, the seventh gear 4016 drives the eighth gear 4017 to rotate clockwise, the eighth gear 4017 drives the eleventh rotating shaft 4018 to rotate clockwise, the eleventh rotating shaft 4018 drives the fifth shifting rod 4019 to rotate clockwise, when the fifth shift lever 4019 rotates until the upper protruding cylinder strikes the shorter side of the seventh shift lever 4020, the sixth shift lever 4020 is pressed down to drive the longer side of the sixth shift lever 4020 to swing clockwise until it strikes the protrusion on the side of the third slider 4021 opposite to the second slider 4013, the third slider 4021 and the fourth connecting rod 4022 are driven to slide toward the second slider 4013, when the second slider 4013 and the third slider 4021 slide toward each other until they strike together, the first clamp 4015 connected through the third connecting rod 4014 and the second slider 4013 will butt against the second clamp 4023 through the fourth connecting rod 4022 and the third slider 4021, and then clamp the piston handle at the tail of the piston shaft, at this time, the second rotating shaft 305 drives the third bevel gear 308 to rotate clockwise, the third bevel gear 308 drives the fourth bevel gear 309 to rotate counterclockwise, and the fourth bevel gear 309 drives the fifth rotating shaft 3010 to rotate counterclockwise, the fifth rotation shaft 3010 drives the fifth bevel gear 3011 to rotate counterclockwise, the fifth bevel gear 3011 drives the sixth bevel gear 3012 to rotate clockwise, the sixth bevel gear 3012 drives the thirteenth rotation shaft 4029 to rotate clockwise, the thirteenth rotation shaft 4029 drives the twelfth bevel gear 4028 to rotate clockwise, the twelfth bevel gear 4028 drives the eleventh bevel gear 4027 to rotate counterclockwise, the eleventh bevel gear 4027 drives the twelfth rotation shaft 4026 to rotate counterclockwise, the twelfth rotation shaft 4026 drives the rotary knife 4031 to rotate counterclockwise, the rotary knife 4031 prizes the rubber piston head sleeved on the piston shaft, at this time, when the third shift lever 4011 rotates counterclockwise until the lower convex cylinder impacts the bump on the other side of the second slide block 4013, the second slide block 4013 drives the third connecting rod 4014 to be far away from the third slide block 4021, and when the fifth shift lever 4019 rotates clockwise until the lower convex cylinder impacts the bump on the other side of the third slide block 4021, the third slide block 4021 drives the fourth connecting rod 4022 to be far away from the second slide block 4013, when the second sliding block 4013 and the third sliding block 4021 are far away from each other, the butted first clamp 4015 and the second clamp 4023 are released, the piston shaft slides down to the second cleaning barrel 5018, and the separation of the piston shaft and the rubber piston head is realized.

The cleaning mechanism 5 further comprises a motor 501, a fourteenth rotating shaft 502, a ninth gear 503, a tenth gear 504, a fifteenth rotating shaft 505, a thirteenth bevel gear 506, a fourteenth bevel gear 507, a sixteenth rotating shaft 508, a fifteenth bevel gear 509, a sixteenth bevel gear 5010, a seventeenth rotating shaft 5011, a first cleaning barrel 5012, a seventeenth bevel gear 5013, an eighteenth rotating shaft 5014, an eighteenth bevel gear 5015, a nineteenth bevel gear 5016, a nineteenth rotating shaft 5017 and a second cleaning barrel 5018; the motor 501 is rotatably connected with the fourteenth rotating shaft 502; the outer surface of the fourteenth rotating shaft 502 is rotatably connected with a ninth gear 503; the ninth gear 503 is engaged with the tenth gear 504; the tenth gear 504 is rotatably connected with the outer surface of the fifteenth rotating shaft 505; the outer surface of the fifteenth rotating shaft 505 is rotatably connected with the inner axis of the thirteenth bevel gear 506; a thirteenth bevel gear 506 meshes with a fourteenth bevel gear 507; the thirteenth bevel gear 506 meshes with a seventeenth bevel gear 5013; the inner axis of the fourteenth bevel gear 507 is rotatably connected with the outer surface of the sixteenth rotating shaft 508; the outer surface of the sixteenth rotating shaft 508 is rotatably connected with the inner axis of a fifteenth bevel gear 509; the fifteenth bevel gear 509 is meshed with the sixteenth bevel gear 5010; the inner axis of the sixteenth bevel gear 5010 is rotatably connected with the outer surface of the seventeenth rotating shaft 5011; the seventeenth rotating shaft 5011 is rotatably connected with the first cleaning barrel 5012; the inner axis of the seventeenth bevel gear 5013 is rotatably connected with the outer surface of the eighteenth rotating shaft 5014; the outer surface of the eighteenth rotating shaft 5014 is rotatably connected with the inner axis of the eighteenth bevel gear 5015; the eighteenth bevel gear 5015 is engaged with the nineteenth bevel gear 5016; the inner axis of the nineteenth bevel gear 5016 is in rotary connection with the outer surface of the nineteenth rotating shaft 5017; the nineteenth rotating shaft 5017 is rotatably connected with the second cleaning barrel 5018; the ninth gear 503 is engaged with the first gear 301; the seventeenth rotating shaft 5011 is rotatably connected with the base 1; the nineteenth rotating shaft 5017 is rotatably connected with the base 1; the outer surface of the eighteenth rotating shaft 5014 is rotatably connected with the inner axis of the seventh bevel gear 401; the motor 501 is connected with the base 1; the second cleaning barrel 5018 is inserted into the sieve plate 4030.

Disinfectant is poured into the first cleaning barrel 5012 and the second cleaning barrel 5018, the motor 501 drives the fifteenth long shaft to rotate, the motor 501 operates to drive the fourteenth rotating shaft 502 to rotate, the fourteenth rotating shaft 502 drives the ninth gear 503 to rotate, the ninth gear 503 drives the tenth gear 504 to rotate, the tenth gear 504 drives the fifteenth rotating shaft 505 to rotate, the fifteenth rotating shaft 505 drives the thirteenth bevel gear 506 to rotate, the thirteenth bevel gear 506 simultaneously drives the fourteenth bevel gear 507 and the seventeenth bevel gear 5013 to rotate, the fourteenth bevel gear 507 drives the sixteenth rotating shaft 508 to rotate, the sixteenth rotating shaft 508 drives the fifteenth bevel gear 509 to rotate, the fifteenth bevel gear 509 drives the sixteenth bevel gear 5010 to rotate, the sixteenth rotating shaft 5010 drives the seventeenth rotating shaft 5011 to rotate, the seventeenth rotating shaft 5011 drives the first cleaning barrel 5012 to rotate, the seventeenth bevel gear 5013 drives the eighteenth rotating shaft 5014 to rotate, the eighteenth rotating shaft 5014 drives the eighteenth bevel gear 5015 to rotate, the eighteenth bevel gear 5015 drives the nineteenth bevel gear 5016 to rotate, the nineteenth bevel gear 5016 drives the nineteenth rotating shaft 5017 to rotate, and the nineteenth rotating shaft 5017 drives the second cleaning barrel 5018 to rotate, so that the first cleaning barrel 5012 and the second cleaning barrel 5018 rotate; the piston shaft and the hollow cylinder are cleaned and disinfected respectively, so that the cleaning and disinfection of the waste syringe are realized.

A chute is arranged above the support platform 306.

The waste syringe may be moved within the chute of the support table 306.

A spring knife 3023 is arranged below the first slider 3018.

The second driver 3022 can be reset.

Two convex blocks are respectively arranged on two sides of one side, opposite to the fifth gear 408, of the second sliding block 4013, the two convex blocks are horizontally opposite, two convex blocks are respectively arranged on two sides of one side, opposite to the eighth gear 4017, of the third sliding block 4021, and the two convex blocks are horizontally aligned.

The piston handle on the piston shaft can be clamped.

The second slide 4013 and the third slide 4021 may be made to slide within openings in the base plate 4024.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a syringe recovery unit, includes base (1) and control panel (2), characterized by: the device also comprises a bidirectional drawing mechanism (3), a rubber piston separating mechanism (4) and a cleaning mechanism (5); the base (1) is connected with the control screen (2); the base (1) is connected with the bidirectional drawing mechanism (3); the base (1) is connected with the rubber piston separating mechanism (4); the base (1) is connected with the cleaning mechanism (5); the bidirectional drawing mechanism (3) is connected with the rubber piston separating mechanism (4); the bidirectional drawing mechanism (3) is connected with the cleaning mechanism (5); the rubber piston separating mechanism (4) is connected with the cleaning mechanism (5).

2. A syringe recovery device according to claim 1, wherein: the bidirectional drawing mechanism (3) further comprises a first gear (301), a first rotating shaft (302), a first bevel gear (303), a second bevel gear (304), a second rotating shaft (305), a supporting table (306), a first driving lever (307), a third bevel gear (308), a fourth bevel gear (309), a fifth rotating shaft (3010), a fifth bevel gear (3011), a sixth bevel gear (3012), a second gear (3013), a third gear (3014), a sixth rotating shaft (3015), a first supporting plate (3016), a rotary disc (3017), a first slider (3018), a first connecting rod (3019), a second connecting rod (3020), a limiting rod (3021), a second driving lever (3022), a spring knife (3023), a first sliding rail (3024), a second sliding rail (3025), a fixed block (3026) and a first driving rod (3027); the first gear (301) is in rotary connection with the first rotating shaft (302); the outer surface of the first rotating shaft (302) is in rotating connection with the inner axle center of the first bevel gear (303); the first bevel gear (303) is meshed with the second bevel gear (304); the inner axis of the second bevel gear (304) is rotationally connected with the outer surface of the second rotating shaft (305); the outer surface of the second rotating shaft (305) is rotatably connected with the support table (306); the outer surface of the second rotating shaft (305) is in transmission connection with a first deflector rod (307); the outer surface of the second rotating shaft (305) is in rotating connection with a third bevel gear (308); the outer surface of the second rotating shaft (305) is in rotating connection with a second gear (3013); the support table (306) is spliced with the first connecting rod (3019) through a support; the support table (306) is spliced with the second connecting rod (3020) through a bracket; the support table (306) is welded with the limiting rod (3021); the supporting table (306) is spliced with a second deflector rod (3022); the support table (306) is welded with the first sliding rail (3024); the support table (306) is welded with the second slide rail (3025); the third bevel gear (308) is meshed with the fourth bevel gear (309); the inner axis of the fourth bevel gear (309) is rotatably connected with the outer surface of the fifth rotating shaft (3010); the outer surface of the fifth rotating shaft (3010) is in rotating connection with the inner axis of the fifth bevel gear (3011); the fifth bevel gear (3011) is meshed with the sixth bevel gear (3012); the outer ring surface of the second gear (3013) is in transmission connection with a third gear (3014) through a chain; the third gear (3014) is rotatably connected with the sixth rotating shaft (3015); the sixth rotating shaft (3015) is rotatably connected with the first supporting plate (3016); the sixth rotating shaft (3015) is connected with the rotary disc (3017) in a rotating way; the rotary table (3017) is welded with the fixed block (3026); the rotary table (3017) is in transmission connection with a first transmission rod (3027); the first sliding block (3018) is in transmission connection with the first transmission rod (3027); the first sliding block (3018) is connected with the first connecting rod (3019) in a sliding mode; the first sliding block (3018) is connected with the second connection in a sliding manner; the second driving lever (3022) is in transmission connection with the spring knife (3023); the first gear (301) is connected with the cleaning mechanism (5); the outer surface of the first rotating shaft (302) is rotatably connected with the base (1); the first supporting plate (3016) is welded with the rubber piston separating mechanism (4); the second gear (3013) is connected with the base (1) in a rotating way; the third gear (3014) is connected with the base (1) in a rotating way.

3. A syringe recovery device according to claim 2, wherein: the rubber piston separating mechanism (4) further comprises a seventh bevel gear (401), an eighth bevel gear (402), a seventh rotating shaft (403), a ninth bevel gear (404), a tenth bevel gear (405), a ninth rotating shaft (406), a fourth gear (407), a fifth gear (408), a sixth gear (409), a tenth rotating shaft (4010), a third poking rod (4011), a fourth poking rod (4012), a second sliding block (4013), a third connecting rod (4014), a first clamp (4015), a seventh gear (4016), an eighth gear (4017), an eleventh rotating shaft (4018), a fifth poking rod (4019), a sixth poking rod (4020), a third sliding block (4021), a fourth connecting rod (4022), a second clamp (4023), a bottom plate (4024), a protective housing (4025), a twelfth rotating shaft (4026), an eleventh bevel gear (4027), a twelfth bevel gear (4028), a thirteenth rotating shaft (4029), a base plate (4023), a bottom plate (4024), a protective housing (, A sieve plate (4030) and a spring knife (3023); the seventh bevel gear (401) is meshed with the eighth bevel gear (402); the inner axis of the eighth bevel gear (402) is rotatably connected with the outer surface of the seventh rotating shaft (403); the outer surface of the seventh rotating shaft (403) is rotationally connected with the inner axis of the ninth bevel gear (404); the ninth bevel gear (404) is meshed with the tenth bevel gear (405); the inner axis of the tenth bevel gear (405) is rotatably connected with the outer surface of the ninth rotating shaft (406); the outer surface of the ninth rotating shaft (406) is rotationally connected with a fourth gear (407); the outer surface of the ninth rotating shaft (406) is rotationally connected with a fifth gear (408); the outer surface of the ninth rotating shaft (406) is rotatably connected with the bottom plate (4024) through a bracket; the fourth gear (407) is meshed with the seventh gear (4016); the fifth gear (408) is meshed with the sixth gear (409); the sixth gear (409) is in rotary connection with the outer surface of the tenth rotating shaft (4010); the outer surface of the tenth rotating shaft (4010) is rotatably connected with the bottom plate (4024) through a bracket; the outer surface of the tenth rotating shaft (4010) is in transmission connection with a third shifting rod (4011); the fourth driving lever (4012) is inserted into the bottom plate (4024); the second sliding block (4013) is in sliding connection with the bottom plate (4024); the second sliding block (4013) is welded with the third connecting rod (4014); the third connecting rod (4014) is welded with the first clamp (4015); the seventh gear (4016) is rotatably connected with the bottom plate (4024) through a round rod; the seventh gear (4016) meshes with the eighth gear (4017); the eighth gear (4017) is rotatably connected with the outer surface of the eleventh rotating shaft (4018); the outer surface of the eleventh rotating shaft (4018) is rotatably connected with the bottom plate (4024) through a bracket; the outer surface of the eleventh rotating shaft (4018) is in transmission connection with a fifth deflector rod (4019); the sixth deflector rod (4020) is spliced with the bottom plate (4024); the third sliding block (4021) is in sliding connection with the bottom plate (4024); the third sliding block (4021) is welded with the fourth connecting rod (4022); the fourth connecting rod (4022) is welded with the second clamp (4023); the bottom plate (4024) is connected with the protective shell (4025); the twelfth rotating shaft (4026) is in rotating connection with the eleventh bevel gear (4027); the twelfth rotating shaft (4026) is rotatably connected with the sieve plate (4030) through a connecting rod; the twelfth rotating shaft (4026) is rotatably connected with the rotating knife (4031); the eleventh bevel gear (4027) is meshed with the twelfth bevel gear (4028); the inner axis of the twelfth bevel gear (4028) is in rotary connection with the outer surface of the thirteenth rotating shaft (4029); the sieve plate (4030) is connected with the base (1); the sieve plate (4030) is welded with the first supporting plate (3016); the sieve plate (4030) is connected with the cleaning mechanism (5); the seventh bevel gear (401) is connected with the cleaning mechanism (5).

4. A syringe recovery device according to claim 3, wherein: the cleaning mechanism (5) further comprises a motor (501), a fourteenth rotating shaft (502), a ninth gear (503), a tenth gear (504), a fifteenth rotating shaft (505), a thirteenth bevel gear (506), a fourteenth bevel gear (507), a sixteenth rotating shaft (508), a fifteenth bevel gear (509), a sixteenth bevel gear (5010), a seventeenth rotating shaft (5011), a first cleaning barrel (5012), a seventeenth bevel gear (5013), an eighteenth rotating shaft (5014), an eighteenth bevel gear (5015), a nineteenth bevel gear (5016), a nineteenth rotating shaft (5017) and a second cleaning barrel (5018); the motor (501) is rotatably connected with the fourteenth rotating shaft (502); the outer surface of the fourteenth rotating shaft (502) is rotationally connected with a ninth gear (503); the ninth gear (503) meshes with the tenth gear (504); the tenth gear (504) is in rotary connection with the outer surface of the fifteenth rotating shaft (505); the outer surface of the fifteenth rotating shaft (505) is in rotating connection with the inner axle center of the thirteenth bevel gear (506); the thirteenth bevel gear (506) is meshed with the fourteenth bevel gear (507); the thirteenth bevel gear (506) is meshed with the seventeenth bevel gear (5013); the inner axis of the fourteenth bevel gear (507) is rotationally connected with the outer surface of the sixteenth rotating shaft (508); the outer surface of the sixteenth rotating shaft (508) is in rotating connection with the inner axle center of a fifteenth bevel gear (509); the fifteenth bevel gear (509) is meshed with the sixteenth bevel gear (5010); the inner axis of the sixteenth bevel gear (5010) is rotatably connected with the outer surface of the seventeenth rotating shaft (5011); the seventeenth rotating shaft (5011) is rotatably connected with the first cleaning barrel (5012); the inner axle center of the seventeenth bevel gear (5013) is rotatably connected with the outer surface of the eighteenth rotating shaft (5014); the outer surface of the eighteenth rotating shaft (5014) is in rotating connection with the inner axle center of the eighteenth bevel gear (5015); the eighteenth bevel gear (5015) is meshed with the nineteenth bevel gear (5016); the inner axle center of the nineteenth bevel gear (5016) is rotationally connected with the outer surface of the nineteenth rotating shaft (5017); the nineteenth rotating shaft (5017) is in rotating connection with the second cleaning barrel (5018); the ninth gear (503) is meshed with the first gear (301); the seventeenth rotating shaft (5011) is rotatably connected with the base (1); the nineteenth rotating shaft (5017) is rotatably connected with the base (1); the outer surface of the eighteenth rotating shaft (5014) is in rotating connection with the inner axis of the seventh bevel gear (401); the motor (501) is connected with the base (1); the second cleaning barrel (5018) is spliced with the sieve plate (4030).

5. A syringe recovery device according to claim 4, wherein: a sliding groove is arranged above the supporting platform (306).

6. A syringe recovery device according to claim 5, wherein: a spring knife (3023) is arranged below the first sliding block (3018).

7. A syringe recovery device according to claim 6, wherein: two protruding blocks are respectively arranged on two sides of one side, opposite to the fifth gear (408), of the second sliding block (4013), the two protruding blocks are horizontally opposite, two protruding blocks are respectively arranged on two sides of one side, opposite to the eighth gear (4017), of the third sliding block (4021), and the two protruding blocks are horizontally aligned.