CN114794087A

CN114794087A - Disconnected finger save set of nitrogen gas low temperature environment

Info

Publication number: CN114794087A
Application number: CN202210720813.2A
Authority: CN
Inventors: 仇申强; 张勉; 张迪
Original assignee: Shandong Provincial Hospital Affiliated to Shandong First Medical University
Current assignee: Shandong Provincial Hospital Affiliated to Shandong First Medical University
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-07-29
Anticipated expiration: 2042-06-24
Also published as: CN114794087B

Abstract

The invention discloses a severed finger storage device in a nitrogen low-temperature environment, which relates to the technical field of low-temperature storage and comprises a supporting device, wherein a conveying device, a packaging device, a gauze storage device, a power device and a packaging device are arranged on the supporting device, a finger is placed on the packaging device, gauze on the gauze storage device is moved to the packaging device by the conveying device, the gauze is packaged on the finger by the packaging device, a medical packaging bag is placed on the packaging device, the finger is placed in the medical packaging bag, nitrogen is filled in the medical packaging bag for packaging, the medical packaging bag is placed in a low-temperature bin for storage, and a heat dissipation device is arranged on the supporting device for heat dissipation and temperature reduction.

Description

Disconnected finger save set of nitrogen gas low temperature environment

Technical Field

The invention relates to the technical field of low-temperature preservation, in particular to a finger-severed preservation device in a nitrogen low-temperature environment.

Background

Nitrogen, commonly known as inert gas, is commonly injected into a closed space in medical food to protect objects in the space, and the severed limb to be preserved must not be soaked in water or alcohol, and should be wrapped in a clean plastic bag or cloth, placed in a small container, and then frozen for preservation, wherein ice water must be prevented from permeating into the plastic bag during preservation, and then the container is covered and sent to a hospital together with the patient as soon as possible to strive for the chance of replantation of the severed finger.

The invention discloses an integrated device for fumigating, freezing, storing and transporting gametes based on ultralow-temperature liquid nitrogen, which comprises a mobile cart, a main liquid nitrogen storage tank, a storage tank heat insulation cover, a liquid nitrogen recovery tank, a low-temperature valve, a gamete carrier frame and a temperature feedback device, wherein the main liquid nitrogen storage tank is made of polyurethane heat insulation materials or vacuum multilayer heat insulation and is provided with the polyurethane heat insulation cover, frosting and condensation do not occur on the outer surface of a box body of the storage tank, the main liquid nitrogen storage tank is provided with a buffer cavity separated from a working cavity to form a communicating vessel, and the stability of the liquid level and the temperature of the working cavity is ensured to avoid severe fluctuation caused by a liquid adding process. The temperature measuring and displaying function is provided, and the temperature information is simultaneously used for adjusting the liquid level height. However, the prior art cannot protect the severed finger during the low-temperature preservation process, and the severed finger is easy to be infected by condensed water generated during the low-temperature preservation process.

Disclosure of Invention

The invention discloses a finger breakage storage device in nitrogen low-temperature environment, which comprises a supporting device, wherein a low-temperature bin is arranged in the supporting device, a conveying device, a wrapping device, a gauze storage device, a power device and a packaging device are arranged on the supporting device, gauze is placed on the gauze storage device, the broken finger is placed on the wrapping device, the conveying device conveys the gauze into the wrapping device, the wrapping device wraps a finger, the wrapping device comprises an air cylinder II and an air cylinder III, a rotating plate II is hinged to a cylinder arm of the air cylinder II, a rotating plate I is hinged to a cylinder arm of the air cylinder III, long grooves are arranged on the rotating plate I and the rotating plate II, the long grooves are connected in series through an intermediate shaft, a connecting shaft I is fixedly arranged on the rotating plate II, a connecting shaft II is fixedly arranged on the rotating plate I, the connecting shaft I and the connecting shaft II are movably matched in the intermediate plate, a small spring II is fixedly arranged between the connecting shaft II and the intermediate plate, a small spring I is fixedly arranged between the middle plate and the connecting shaft I.

Further, II fixed mounting of cylinder are in strutting arrangement, and the connecting rod is equipped with in the last slip of strutting arrangement, and the fixed spring III that is equipped with between connecting rod and the strutting arrangement, III fixed mounting of cylinder is on the connecting rod.

Further, packaging hardware includes two bases, and the rotation is equipped with the gear on the base, and the gear downside meshing has the rack, and rack slidable mounting is on the base, and the fixed hook I that is equipped with on the rack, and slidable mounting has the slide bar on the base, and it has hook II to articulate through II hinges of torsional spring on the slide bar, and the fixed hook rod that is equipped with on the hook II, hook rod are located the downside of II and slide bar pin joints of hook, and the hook I cooperates with the hook rod when removing, through gear drive rack, lets medical packaging bag card on hook II.

Furthermore, the power device drives the first gear, a belt wheel is fixedly arranged on one side of the first gear, and the belt wheel drives the second gear to rotate through a long belt.

Furthermore, the packaging device further comprises an air cylinder VI, an extrusion rod is fixedly arranged on a cylinder arm of the air cylinder VI, a heating rod is further arranged in the supporting device, a nitrogen spray head is arranged between the extrusion rod and the heating rod, the extrusion rod and the heating rod are located on the lower sides of the hook II and the nitrogen spray head, and the medical packaging bag is heated and sealed when the extrusion rod and the heating rod are in contact.

Furthermore, conveyor includes the lead screw, and the lead screw is rotatory to be installed on strutting arrangement and by the packaging hardware drive, and the slide is equipped with on the strutting arrangement to the slip, and the lead screw cooperates and drives the slide and slide, is equipped with clamping component on the slide.

Furthermore, a sliding plate is vertically arranged on the sliding seat in a sliding mode, a mounting plate is fixedly arranged on the sliding plate, rollers are rotatably arranged on the mounting plate, the clamping assembly is arranged on the sliding plate, a rail is arranged in the supporting device, one end, close to the gauze storage device, of the rail is lower than one end, close to the wrapping device, of the rail, and the rollers are matched in the rail.

Further, the centre gripping subassembly includes cylinder I, the fixed horizontal pole that is equipped with on the jar arm of cylinder I, the connecting block is all equipped with at the both ends of horizontal pole, set up short groove I in the connecting block, the I fit in short groove has the slide bar, it has two electric push rods II and two electric push rods I to articulate in the mounting panel, set up short groove II in the electric push rod I, short groove II and II cooperations of synchronizing shaft, the fixed spring I that is equipped with between electric push rod I and the connecting block, the fixed spring II that is equipped with between synchronizing shaft II and the electric push rod I, the slide bar is located the upper end of short groove I under the natural state, the fixed chuck II that is equipped with on the jar arm of electric push rod II, the fixed chuck I that is equipped with on the jar arm of electric push rod I, rotate through I synchronization shaft between two electric push rods II in step, rotate through II synchronization shaft in step between two electric push rods I.

Further, the gauze storage device comprises an air cylinder IV, a disinfection rod is fixedly arranged on a cylinder arm of the air cylinder IV, and the disinfection rod disinfects the gauze.

Compared with the prior art, the invention has the beneficial effects that: (1) the invention uses the gauze to wind the finger, which can prevent certain condensed water from being adsorbed on the severed finger after being frozen to infect the severed finger; (2) the invention protects the nitrogen filled in the medical packaging bag through the nitrogen nozzle, thereby further preventing finger breakage infection; (3) the conveying device is provided with the clamping assembly, the clamping assembly can deflect upwards in the clamping process to avoid obstacle movement, and gauze is guaranteed to smoothly fall on a broken finger in the wrapping device; (4) the medical packaging bag is supported by the hook II in the packaging device, and the extrusion rod and the heating rod are not interfered with each other when packaged, so that the service life is prolonged, and smooth operation is ensured.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a schematic view of the supporting device of the present invention.

Fig. 3 is a schematic view of a gauze storage device according to the present invention.

Fig. 4 is a schematic view of the internal structure of the supporting device of the present invention.

FIG. 5 is a schematic view of the conveyor of the present invention.

Fig. 6 is an enlarged view of a portion a in fig. 5.

Fig. 7 is a schematic view of a wrapping apparatus of the present invention.

Fig. 8 is an enlarged view of fig. 7 at B.

Fig. 9 is a schematic view of the packaging device of the present invention.

Fig. 10 is a partial schematic view of a packaging device of the present invention.

Fig. 11 is an enlarged view of fig. 10 at D.

Fig. 12 is an enlarged view at C in fig. 4.

Reference numerals: 1-a conveying device; 2-a wrapping device; 3-a gauze storage device; 4-a power plant; 5-packaging the device; 6-a support device; 7-a heat sink; 8-gauze; 101-a lead screw; 102-a slide; 103-a skateboard; 104-cylinder I; 105-a cross-bar; 106-connecting block; 107-spring I; 108-a sliding shaft; 109-spring II; 110-electric push rod I; 111-a mounting plate; 112-a roller; 113-electric push rod II; 114-torsion spring I; 115-chuck I; 116-chuck II; 117-synchronizing shaft i; 118-synchronizing shaft ii; 119-a slide rail; 120-track; 201-spring III; 202-connecting rod; 203-rotating the plate I; 204-rotating the plate II; 205-cylinder II; 206-cylinder iii; 207-intermediate shaft; 208-a middle plate; 209-connecting shaft I; 210-a small spring I; 211-small spring ii; 212-connecting shaft II; 301-a fixed plate; 302-rotating shaft I; 303-leather belt I; 304-rotating shaft II; 305-shaft iii; 306-belt II; 307-rotating shaft IV; 308-a disinfection rod; 309-cylinder IV; 310-Belt III; 401-an electric machine; 402-cylinder V; 403-a shifting fork; 404-bevel gear i; 405-a driving wheel; 406-a driven wheel; 407-bevel gear II; 408-a transmission rod I; 409-a transmission rod II; 501-cylinder VI; 502-a squeeze bar; 503-heating rod; 504-nitrogen showerhead; 505-a gear; 506-a pulley; 507-rack; 508-hook I; 509-a base; 510-spring IV; 511-a slide bar; 512-torsion spring II; 513-hook ii; 514-hook bar; 601-a chassis; 602-an upper cover; 603-opening; 604-a door panel; 605-vehicle wheels.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example (b): the utility model provides a disconnected finger save set of nitrogen gas low temperature environment, including strutting arrangement 6, strutting arrangement 6 is equipped with conveyor 1 on, packing apparatus 2, gauze storage device 3, power device 4 and packaging hardware 5, put the finger on packing apparatus 2, move the gauze 8 on the gauze storage device 3 to packing apparatus 2 by conveyor 1, packing apparatus 2 wraps up gauze 8 on the finger, put medical encapsulation bag on packaging apparatus 5, put the finger in medical encapsulation bag, fill into and encapsulate after nitrogen gas, and put and preserve in the low temperature storehouse, strutting arrangement 6 is equipped with heat abstractor 7 and dispels the heat the cooling.

Strutting arrangement 6 includes chassis 601, and the downside of chassis 601 sets up wheel 605, sets up the low temperature storehouse on chassis 601, and it has door plant 604 to articulate on the low temperature storehouse, conveniently takes out the thing of the inside, can dismantle on the chassis 601 and be equipped with upper cover 602, sets up opening 603 on the upper cover 602, and opening 603 is located the upside of parcel device 2, conveniently puts into parcel device 2 with the finger from opening 603.

The gauze storage device 3 comprises a fixed plate 301, the fixed plate 301 is fixedly arranged on a base plate 601, a rotating shaft I302, a rotating shaft II 304, a rotating shaft III 305 and a rotating shaft IV 307 are rotatably arranged on the fixed plate 301, a belt I303 is arranged between the rotating shaft I302 and the rotating shaft II 304, a belt II 306 is arranged between the rotating shaft IV 307 and the rotating shaft III 305, a plurality of partition plates are uniformly arranged on the belt I303 and the belt II 306, the partition plates on the belt I303 and the partition plates on the belt II 306 drive the gauze 8 to move together, the rotating shaft I302 and the rotating shaft IV 307 are driven by the belt III 310, the rotating shaft II 304 is driven to rotate by a small motor, an air cylinder IV 309 is fixedly arranged on an upper cover 602, a disinfection rod 308 is fixedly arranged on a cylinder arm of the air cylinder IV 309, the small motor drives the belt I303 and the belt II 306 to move the gauze 8 upwards, then the gauze 8 at the uppermost side is taken away by the conveying device 1, and the gauze is disinfected by the disinfecting rod 308 after being taken away.

The conveying device 1 comprises a lead screw 101, the lead screw 101 is rotatably installed on a base plate 601, a sliding seat 102 is matched on the lead screw 101, the sliding seat 102 is slidably installed on the base plate 601, a sliding rail 119 is fixedly installed on the sliding seat 102, a sliding plate 103 is vertically installed on the sliding rail 119 in a sliding manner, a clamping assembly is installed on the sliding plate 103, an installation plate 111 is fixedly installed on the sliding plate 103, an idler wheel 112 is rotatably installed on the installation plate 111, a track 120 is fixedly installed on the base plate 601, one end, close to a gauze storage device 3, of the track 120 is lower than one end, close to a wrapping device 2, of the track 120, the idler wheel 112 rotates and slides in the track 120, the lead screw 101 is driven by a power device 4 and moves to the gauze storage device 3, one gauze 8 is taken away by the clamping assembly, and the gauze 8 is placed on fingers when the wrapping device 2 is moved.

In this embodiment, the clamping assembly includes an air cylinder i 104, a cross bar 105 is fixedly installed on a cylinder arm of the air cylinder i 104, connecting blocks 106 are installed at two ends of the cross bar 105, a short groove i is arranged in the connecting block 106, a sliding shaft 108 is matched in the short groove i, two electric push rods ii 113 and two electric push rods i 110 are hinged in the mounting plate 111, a short groove ii is arranged in the electric push rod i 110, the short groove ii is matched with a synchronizing shaft ii 118, a spring i 107 is fixedly installed between the electric push rod i 110 and the connecting block 106, a spring ii 109 is fixedly installed between the synchronizing shaft ii 118 and the electric push rod i 110, the sliding shaft 108 is located at the upper end of the short groove i in a natural state, a chuck ii 116 is fixedly installed on the cylinder arm of the electric push rod ii 113, a chuck i 115 is fixedly installed on the cylinder arm of the electric push rod i 110, the two electric push rods 113 ii rotate synchronously through the synchronizing shaft i 117, the two electric push rods i 110 rotate synchronously through the synchronizing shaft ii 118, the air cylinder i 104 enables the chuck to retract upwards to clamp the chuck i 115, continuing to retract the collet I115 causes the collet II 116 to deflect upward.

The wrapping device 2 comprises a connecting rod 202, the connecting rod 202 is slidably mounted on a base plate 601, a spring III 201 is fixedly mounted between the connecting rod 202 and the base plate 601, an air cylinder III 206 is fixedly mounted on the connecting rod 202, a rotating plate I203 is hinged on a cylinder arm of the air cylinder III 206, an air cylinder II 205 is fixedly mounted on the base plate 601, a rotating plate II 204 is hinged on a cylinder arm of the air cylinder II 205, long grooves are formed in the rotating plate I203 and the rotating plate II 204 and are staggered and connected in series through an intermediate shaft 207, a connecting shaft I209 is fixedly mounted on the rotating plate II 204, a connecting shaft II 212 is fixedly mounted on the rotating plate I203, the connecting shaft I209 and the connecting shaft II 212 are movably matched in the intermediate plate 208, a small spring II 211 is fixedly mounted between the connecting shaft II 212 and the intermediate plate 208, a small spring III 210 is fixedly mounted between the intermediate plate 208 and the connecting shaft I209, fingers are placed on the rotating plate I203 and the rotating plate II 204, then the air cylinder II 205 and the air cylinder 206 retract simultaneously, the rotating plate I203 and the rotating plate II 204 are driven to descend, gauze 8 is placed on fingers by the conveying device 1 after descending, two ends of the gauze 8 respectively hang on the rotating plate I203 and the rotating plate II 204, the air cylinder II 205 ascends, the connecting block 106 descends, the fingers roll in the reverse direction of the sliding plate 103, the gauze 8 is wound on the fingers, then the air cylinder III 206 ascends, the air cylinder II 205 descends, and the other end of the gauze 8 is wound on the fingers.

The packaging device 5 comprises two bases 509, gears 505 are rotatably mounted on the bases 509, racks 507 are meshed with the lower sides of the gears 505, the racks 507 are slidably mounted on the bases 509, hooks I508 are fixedly mounted on the racks 507, sliding rods 511 are slidably mounted on the bases 509, hooks II 513 are hinged to the sliding rods 511 through torsion springs II 512, hook rods 514 are fixedly mounted on the hooks II 513, the hook rods 514 are located on the lower sides of hinged points of the hooks II 513 and the sliding rods 511, the hooks I508 are matched with the hook rods 514 when moving, the racks 507 are driven through the gears 505, medical packaging bags are clamped on the hooks II 513, and springs IV 510 are fixedly mounted between the sliding rods 511 and the bases 509.

The power device 4 drives a first gear 505, a belt wheel 506 is fixedly arranged on one side of the first gear 505, and the belt wheel 506 drives a second gear 505 to rotate through a long belt.

The packaging device 5 further comprises an air cylinder VI 501, a squeezing rod 502 is fixedly arranged on a cylinder arm of the air cylinder VI 501, a heating rod 503 is further arranged in the supporting device 6, a nitrogen spray nozzle 504 is arranged between the squeezing rod 502 and the heating rod 503, the squeezing rod 502 and the heating rod 503 are positioned on the lower sides of the hook II 513 and the nitrogen spray nozzle 504, the medical packaging bag is heated and sealed when the squeezing rod 502 and the heating rod 503 are contacted, two ends of the medical packaging bag are clamped on the two hooks II 513 respectively, a gear 505 and a gear 505 drive the rack 507 to move, the hook I508 on the rack 507 pulls the hook rod 514, the hook II 513 is driven by the hook rod 514 to rotate to open the medical packaging bag, the wrapping device 2 puts fingers into the medical packaging bag, the air cylinder VI 501 is started to enable the squeezing rod 502 to be close to the heating rod 503, the nitrogen spray nozzle 504 fills nitrogen into the bag in the process, and finally the squeezing rod 502 and the heating rod 503 are contacted on the lower sides of the nitrogen spray nozzle 504 and the hook II 513, and heat sealing.

The power device 4 comprises a motor 401 and an air cylinder V402, the motor 401 and the air cylinder V402 are fixedly installed on a chassis 601, a spline shaft is fixedly installed on a rotating shaft of the motor 401, a bevel gear I404 is matched on the spline shaft, a shifting fork 403 is fixedly installed on a cylinder arm of the air cylinder V402, the shifting fork 403 is rotatably connected with the bevel gear I404 and axially fixed, a bevel gear II 407 is rotatably installed on the chassis 601, the bevel gear II 407 is connected with a lead screw 101 through a transmission rod I408 and drives the lead screw 101 to rotate, a driven wheel 406 is rotatably installed on the chassis 601, a driving wheel 405 is fixedly installed on the bevel gear I404, a transmission rod II 409 is fixedly installed on the driven wheel 406, the transmission rod 409 II drives a gear 505 to rotate, when the conveying device 1 needs to be driven, the air cylinder V402 retracts to enable the bevel gear I404 to be meshed with the bevel gear II 407, at the time, the driving wheel 405 is separated from the driven wheel 406, the motor 401 drives the lead screw 101 to rotate through the bevel gear I404 and the bevel gear II 407, when the packaging device 5 needs to be driven, the air cylinder V402 extends, the bevel gear I404 is separated from the bevel gear II 407, the driving wheel 405 is matched with the driven wheel 406, the driven wheel 406 and the driving rod II 409 are driven to rotate, and the gear 505 is driven to rotate.

The working principle is as follows: clamping two sides of a medical packaging bag on two hooks II 513 respectively, starting an air cylinder V402 to drive a driving wheel 405 to be meshed with a driven wheel 406, driving a rack 507 to move by the driven wheel 406 through a gear 505, pulling a hook rod 514 by a hook I508 to enable the hook II 513 to rotate, tightly supporting the medical packaging bag, putting fingers on a rotating plate II 204 and a rotating plate I203 from an opening 603, starting a gauze storage device 3, putting a gauze 8 at the highest position by the gauze storage device 3, then retracting the air cylinder V402 to enable a bevel gear I404 to be meshed with a bevel gear II 407, enabling a lead screw 101 to rotate to drive a sliding seat 102 to move close to the gauze 8, retracting the air cylinder I104 to enable a chuck I115 and a chuck II 116 to rotate upwards, enabling the air cylinder I104 to return to the original position when the gauze reaches the position of 8, extending an electric push rod II 113 and an electric push rod I110 to enable the gauze 8 to be located between the chuck I115 and the chuck II 116, retracting the air cylinder I104, enabling the chuck I115 to upwards clamp the chuck II 116 to clamp the gauze 8, reversely rotating the motor 401 to drive the gauze 8 on the conveying device 1 to move towards the wrapping device 2, starting the air cylinder IV 309 and the disinfection rod 308 to disinfect the gauze 8 in the process, sliding in the track 120 through the roller 112 to enable the clamping and gauze 8 to rise to the upper sides of the rotating plate I203 and the rotating plate II 204, loosening the gauze 8, falling on a finger, descending the air cylinder II 205 through the air cylinder III 206 to drive the finger to roll towards the direction of the rotating plate I203, winding the gauze 8 on the finger, ascending the air cylinder II 205 through the air cylinder III 206 to descend, winding the other end of the gauze 8 on the finger, continuously descending the air cylinder II 205 to convey the gauze and the gauze 8 together into a medical packaging bag, starting the air cylinder VI 501, retracting the air cylinder VI 501 to drive the extrusion rod 502 to be close to the heating rod 503, and continuously filling nitrogen into the medical packaging bag for protection during the process, finally, the medical packaging bag is heated and sealed by the squeezing rod 502 and the heating rod 503, the driving gear 505 rotates reversely, the two hooks II 513 release the medical packaging bag, the medical packaging bag is dropped into the low-temperature cabin of the supporting device 6, and the door panel 604 is opened to be taken out when needed.

Claims

1. The utility model provides a disconnected finger save set of nitrogen gas low temperature environment, includes strutting arrangement (6), sets up low temperature storehouse, its characterized in that in strutting arrangement (6): the supporting device (6) is provided with a conveying device (1), a wrapping device (2), a gauze storage device (3), a power device (4) and a packaging device (5), gauze (8) is placed on the gauze storage device (3), severed fingers are placed on the wrapping device (2), the conveying device (1) conveys the gauze (8) into the wrapping device (2), the wrapping device (2) wraps the fingers, the wrapping device (2) comprises an air cylinder II (205) and an air cylinder III (206), a rotating plate II (204) is hinged to a cylinder arm of the air cylinder II (205), a rotating plate I (203) is hinged to a cylinder arm of the air cylinder III (206), elongated slots are formed in the rotating plate I (203) and the rotating plate II (204) and connected in series through an intermediate shaft (207), a connecting shaft I (209) is fixedly arranged on the rotating plate II (204), and a connecting shaft II (212) is fixedly arranged on the rotating plate I (203), the connecting shaft I (209) and the connecting shaft II (212) are movably matched in the middle plate (208), a small spring II (211) is fixedly arranged between the connecting shaft II (212) and the middle plate (208), and a small spring I (210) is fixedly arranged between the middle plate (208) and the connecting shaft I (209).

2. The finger-breaking preservation device in nitrogen low-temperature environment as claimed in claim 1, characterized in that: the air cylinder II (205) is fixedly installed in the supporting device (6), the connecting rod (202) is installed on the supporting device (6) in a sliding mode, the spring III (201) is fixedly installed between the connecting rod (202) and the supporting device (6), and the air cylinder III (206) is fixedly installed on the connecting rod (202).

3. The finger-breaking preservation device in nitrogen low-temperature environment as claimed in claim 2, characterized in that: packaging hardware (5) include two bases (509), gear (505) are equipped with in rotation on base (509), gear (505) downside meshing has rack (507), rack (507) slidable mounting is on base (509), fixed hook I (508) of being equipped with on rack (507), slidable mounting has slide bar (511) on base (509), it has hook II (513) to articulate through torsional spring II (512) on slide bar (511), fixed hook (514) of being equipped with on hook II (513), hook (514) are located the downside of hook II (513) and slide bar (511) pin joint, cooperate with hook (514) when hook I (508) remove, drive rack (507) through gear (505), let medical packaging bag card on hook II (513).

4. The finger-breaking preservation device in nitrogen low-temperature environment as claimed in claim 3, characterized in that: the power device (4) drives the first gear (505), a belt wheel (506) is fixedly arranged on one side of the first gear (505), and the belt wheel (506) drives the second gear (505) to rotate through a long belt.

5. The finger-breaking preservation device in nitrogen low-temperature environment as claimed in claim 4, characterized in that: the packaging device (5) further comprises an air cylinder VI (501), an extrusion rod (502) is fixedly arranged on a cylinder arm of the air cylinder VI (501), a heating rod (503) is further arranged in the supporting device (6), a nitrogen sprayer (504) is arranged between the extrusion rod (502) and the heating rod (503), the extrusion rod (502) and the heating rod (503) are located on the lower sides of the hook II (513) and the nitrogen sprayer (504), and the medical packaging bag is heated and sealed when the extrusion rod (502) and the heating rod (503) are in contact.

6. The finger-breaking preservation device in nitrogen low-temperature environment as claimed in claim 1, characterized in that: the conveying device (1) comprises a lead screw (101), the lead screw (101) is rotatably installed on a supporting device (6) and driven by a packaging device (5), a sliding seat (102) is installed on the supporting device (6) in a sliding mode, the lead screw (101) is matched with the sliding seat (102) and drives the sliding seat (102) to slide, and a clamping assembly is installed on the sliding seat (102).

7. The finger-breaking preservation device in nitrogen low-temperature environment as claimed in claim 6, characterized in that: slide (103) are equipped with in vertical slip on slide (102), and fixed mounting panel (111) of being equipped with on slide (103), gyro wheel (112) are equipped with in the rotation on mounting panel (111), are equipped with on slide (103) centre gripping subassembly, track (120) are equipped with in strutting arrangement (6), and track (120) are close to the one end of gauze storage device (3) and are less than the one end that is close to parcel device (2), and gyro wheel (112) cooperation is in track (120).

8. The finger-breaking preservation device in nitrogen low-temperature environment as claimed in claim 7, characterized in that: the clamping assembly comprises an air cylinder I (104), a cross rod (105) is fixedly arranged on a cylinder arm of the air cylinder I (104), connecting blocks (106) are arranged at two ends of the cross rod (105), a short groove I is arranged in the connecting block (106), a sliding shaft (108) is matched in the short groove I, two electric push rods II (113) and two electric push rods I (110) are hinged in a mounting plate (111), a short groove II is arranged in the electric push rod I (110), the short groove II is matched with a synchronizing shaft II (118), a spring I (107) is fixedly arranged between the electric push rod I (110) and the connecting block (106), a spring II (109) is fixedly arranged between the synchronizing shaft II (118) and the electric push rod I (110), the sliding shaft (108) is positioned at the upper end of the short groove I in a natural state, a chuck II (116) is fixedly arranged on the cylinder arm of the electric push rod II (113), a chuck I (115) is fixedly arranged on the cylinder arm of the electric push rod I (110), and the two electric push rods (113) synchronously rotate through the synchronizing shaft I (117), the two electric push rods I (110) synchronously rotate through a synchronous shaft II (118).

9. The finger-breaking preservation device in nitrogen low-temperature environment as claimed in claim 1, characterized in that: the gauze storage device (3) comprises an air cylinder IV (309), a disinfection rod (308) is fixedly arranged on a cylinder arm of the air cylinder IV (309), and the gauze (8) is disinfected by the disinfection rod (308).