CN112914569A - Poultry animal blood drawing device for veterinarian and using method thereof - Google Patents

Abstract

The invention discloses a poultry animal blood drawing device for veterinarians and a using method thereof. According to the invention, through mutual use among the electric telescopic rod, the first rotating rod, the second rotating rod, the inclined rod, the first fixing block, the second spring, the supporting plate, the second fixing block, the movable rod, the first fixing seat, the first movable plate, the first connector, the connecting seat, the second connector and the third rotating rod, a veterinarian can fix the poultry animal when using the blood drawing device, and the animal can be prevented from moving randomly to influence the smooth operation of blood drawing when the poultry animal is subjected to blood drawing.

Description

Poultry animal blood drawing device for veterinarian and using method thereof

Technical Field

The invention relates to the technical field of veterinary tools, in particular to a poultry animal blood drawing device for veterinarians and a using method thereof.

Background

Veterinarians are generally divided into two categories, one being a veterinary veterinarian in animal husbandry, which treats diseases exclusively for domestic animals such as pigs, cattle and chickens, and the other being a pet veterinarian which has recently emerged, a pet veterinarian which is exclusively for individuals, which treats diseases exclusively for pets such as cats and dogs, and which currently requires blood sampling for subsequent blood test analysis during the treatment of poultry animals;

the prior blood drawing device can not quantitatively draw blood for the poultry, is inconvenient to replace a blood collection tube, and can not fix the poultry, so the poultry blood drawing device for veterinarians and the using method thereof are provided for solving the problems.

Disclosure of Invention

The invention provides a poultry blood drawing device for veterinarians and a using method thereof, aiming at overcoming the defects that the poultry blood drawing device in the prior art can not quantitatively draw blood, is inconvenient to replace a blood drawing tube, can not fix the poultry and the like. The poultry blood drawing device for veterinarian and the use method thereof have the characteristics that the poultry blood can be quantitatively drawn, the blood collection tube is convenient to replace, the poultry can be fixed, and the like.

In order to achieve the purpose, the invention provides the following technical scheme: a poultry bloodletting instrument for veterinarians comprises a horizontally arranged base, wherein a first fixed seat is fixedly connected to the top of the base close to the center, a plurality of second fixed plates are fixedly connected to the side wall of the first fixed seat close to the center and symmetrically arranged in a front-back and left-right direction by taking the center line of the first fixed seat as a symmetry axis, a plurality of first bearings are arranged on one sides of the second fixed plates corresponding to the first fixed plates, a plurality of first bearing inner cavities are movably connected with second rotating rods, movable rods are movably connected to the second rotating rods far away from the center line of the first fixed seat, inclined rods are movably connected to the second rotating rods near the center line of the first fixed seat, the upper side and the lower side of each inclined rod far away from the center line of the first fixed seat are fixedly connected with a first fixed block, and the upper side and the lower side of each movable rod near the center line of the first fixed seat are fixedly connected with a second fixed block, a plurality of support plates are arranged at the top of the first fixing seat and are symmetrically arranged in a front-back and left-right manner by taking the central line of the first fixing seat as a symmetry axis, a plurality of second bearings are fixedly connected to one sides corresponding to the support plates, a plurality of second bearing inner cavities are movably connected with first rotating rods, the top ends of the inclined rods and the first rotating rods close to the center of the first fixing seat are movably connected with the top ends of the movable rods and the first rotating rods far away from the center of the first fixing seat, the two sides of the movable rods close to the bottom end are movably connected with first movable plates, an electric telescopic rod is fixedly connected to the inner wall of the bottom of the base close to the central line, a first connector is movably connected to the top end of the electric telescopic rod, and a connecting seat is fixedly connected to the top end of the first connector, the side wall of the connecting seat is fixedly connected with a plurality of second connectors close to the center, the second connectors are symmetrically arranged front and back and left and right by taking the center line of the first connector as a symmetry axis, the inner cavity of the second connector is movably connected with a third rotating rod, two ends of the third rotating rod are respectively movably connected with the bottoms of the two first movable plates close to the center, the left side of the base is movably connected with an L-shaped rod close to the center line, the top end of the L-shaped rod is fixedly connected with a blood drawing tube, the right side of the inner cavity of the blood drawing tube is movably connected with a piston, the upper side and the lower side of the inner cavity of the blood drawing tube are respectively provided with a first spring, the left side and the right side of the first spring are respectively fixedly connected with the left side of the piston on the inner wall on the left side of the blood drawing tube, the left side, a piston rod is movably connected between the first opening inner cavity and the sleeve inner cavity, the right side of the piston rod is fixedly connected with the left side of the piston rod close to the center, a stop block is fixedly connected with the front side of the piston rod close to the center, a limit plate is fixedly connected with the left side of the sleeve, a through hole is formed in the inner cavity of the limit plate, the left end of the piston rod penetrates through the through hole and is fixedly connected with a pull block, a scale mark is arranged on the front side of the sleeve close to the top, a plurality of second tooth blocks are fixedly connected with the top of the sleeve, an adjusting ring is movably connected with the sleeve, two first tooth blocks are fixedly connected with the inner wall of the top of the adjusting ring and are mutually meshed with the two second tooth blocks, a plurality of arc reeds are fixedly connected with the inner wall of the bottom of the adjusting ring, pulleys are movably connected with the top ends of the arc reeds, a third opening is arranged at the bottom of the blood drawing tube close to the right side, a blood outlet tube is fixedly connected with the inner cavity of the third opening, a blood taking tube is movably connected at the bottom of the blood drawing tube close to the right side, the bottom end of the blood outlet tube is positioned in the blood collection tube, a fixing mechanism is arranged at the position of the bottom of the blood collection tube close to the left side, a clamping mechanism is arranged at the bottom of the blood drawing tube close to the center, a fourth opening is arranged at the left side of the blood drawing tube close to the center, a hose is fixedly connected with the inner cavity of the fourth opening, a clamping mechanism is arranged at the right end of the hose, a needle head seat is movably connected at the right end of the hose, the side wall of the needle head seat is fixedly connected with a plurality of clamping blocks which are vertically and longitudinally symmetrically arranged by taking the central line of the needle head seat as a symmetrical axis, the syringe needle seat inner chamber fixedly connected with syringe needle, base bottom swing joint has a plurality of universal wheel.

Preferably, the mechanism of intaking includes the pipe, pipe bottom fixed connection is in second opening inner chamber, the inner chamber is close to top department and is equipped with first fixed plate, first fixed plate left and right sides and pipe both sides inner wall fixed connection, first fixed plate bottom is close to center department fixedly connected with connecting rod, be equipped with the third spring on the connecting rod, just third spring top is close to center department fixed connection with first fixed plate bottom, the pipe inner chamber is close to bottom department and is equipped with the second dead lever, the second dead lever is close to center department and has seted up the fifth opening, the fifth opening inner chamber is run through to the connecting rod bottom, two water inlets have been seted up on the second dead lever.

Preferably, clamping mechanism includes the disc, the inside annular chute that is equipped with of disc, both sides all are equipped with a plurality of third bearing, a plurality of about the annular chute inner chamber swing joint have pivot, a plurality of swing joint has the second fly leaf in the pivot, and a plurality of the one end that the second fly leaf is close to the disc central line is located inside the disc, and be located fixedly connected with arc on the inside second fly leaf of disc, just the arc is inside to contact with the heparin tube lateral wall, the second fly leaf is kept away from disc center one end top and is close to center department fixedly connected with bracing piece, just bracing piece top and blood drawing tube bottom fixed connection, the disc front side is close to center department fixedly connected with connecting block.

Preferably, fixed establishment includes the second fixing base, second fixing base top and blood drawing bottom of the drum fixed connection, the sixth opening has all been seted up to the second fixing base left and right sides, the sixth opening inner chamber is equipped with the fourth bearing, fourth bearing inner chamber swing joint has the threaded rod, threaded rod left end fixedly connected with handle, handle right-hand member fixedly connected with stopper, sliding connection has the slider on the threaded rod, just the slider inner chamber seted up with threaded rod assorted screw thread, and slider bottom and connecting block top are close to front side department fixed connection.

Preferably, the clamping mechanism comprises a clamping seat, the left side of the clamping seat is fixedly connected with the right end of the hose near the center, the clamping seat is clamped with the needle head seat, a plurality of clamping grooves are formed in the clamping seat, the plurality of clamping grooves are four and are symmetrically arranged from top to bottom and back by taking the center line of the clamping seat as a symmetry axis, the clamping grooves are movably connected with the clamping block, a seventh opening is formed in the right side of the clamping seat near the center, a fifth bearing is arranged in the inner cavity of the seventh opening, a clamping head is movably connected to the inner cavity of the fifth bearing, a plurality of grooves are formed in the clamping head, and the grooves are matched with the clamping block.

Preferably, the bottom of the sleeve is provided with a second chute, and the pulley is movably connected to an inner cavity of the second chute.

Preferably, the universal wheels are movably connected with four, and the four universal wheels are symmetrically arranged in front, back, left and right directions by taking the central line of the base as a symmetric axis.

A method of using a veterinary avian blood drawing device comprising the steps of:

s1: the blood drawing device is pushed to a proper place through the universal wheel to draw blood of the poultry, the poultry to be drawn blood is placed above the first fixed seat, then the electric telescopic rod is started through an external power supply, the electric telescopic rod is contracted inwards to drive the first connecting head to move downwards, the first connecting head moves downwards to drive the connecting seat to move downwards, the connecting seat moves downwards to drive the eight first movable plates to start rotating towards the center line of the base, the eight first movable plates start rotating towards the center line of the base to drive the four movable rods and the inclined rods to rotate towards the center line of the base, and the four movable rods and the inclined rods rotate towards the center of the base to drive the eight supporting plates to move towards the center line of the base;

s2: placing the four fixture blocks and four grooves in the chuck on the same horizontal line, moving the needle head seat leftwards to enable the four fixture blocks to be located in the clamping grooves, and rotating the chuck to enable the four fixture blocks and the four grooves not to be on the same horizontal line, so that the needle head seat is fixed in the clamping seat;

s3: placing a blood collection tube inside a disc, then positively rotating a handle to enable a threaded rod to positively rotate, wherein the positive rotation of the threaded rod drives a sliding block to move leftwards, the sliding block moves leftwards to drive a connecting block to move leftwards, the connecting block moves leftwards to drive the disc to start rotating leftwards, the disc rotates leftwards, three rotating shafts start rotating positively, the positive rotation of the three rotating shafts drives one ends of three second movable plates located inside the disc to start moving towards the center of the disc, so that the three arc-shaped plates move towards the center of the disc, the blood collection tube is fixed inside the disc, the top end of the blood collection tube is in contact with the bottom of the blood collection tube, and a blood outlet tube is located inside the blood collection;

s4: pulling the adjusting ring upwards to move two first tooth blocks on the inner wall of the adjusting ring out of one part of the second tooth blocks, so that the three arc-shaped reeds contract inwards, moving the adjusting ring leftwards and rightwards to drive the pulleys of the electric telescopic rod to move leftwards and rightwards in the second chute, stopping pulling the adjusting ring upwards when the adjusting ring moves to a proper position of a scale mark, engaging the two first tooth blocks in the adjusting ring with one part of the second tooth blocks, fixing the adjusting ring at a proper position, pricking the needle head into the blood vessel of the poultry animal, holding the pulling block to move leftwards, moving the pulling block leftwards to drive the piston rod to move towards the left, moving the piston rod leftwards to drive the piston to move leftwards, moving the piston leftwards to enable the blood of the poultry animal to enter the blood drawing cylinder through a plurality of hoses, and then flowing into the blood collecting tube through the blood outlet, when the stop block is in contact with the right side of the adjusting ring, the pull block is stopped to be pulled to finish blood drawing;

s5: the handle is rotated reversely to drive the threaded rod to rotate reversely, the threaded rod rotates reversely to drive the sliding block to move rightwards, the sliding block moves rightwards to drive the connecting block to move rightwards, the connecting block moves rightwards to drive the disc to start rotating rightwards, the disc rotates rightwards, the three rotating shafts start rotating reversely, the three rotating shafts drive one ends of the three second movable plates located in the disc to start moving away from each other, so that the three arc-shaped plates move away from each other, the interiors of the three arc-shaped plates are separated from the side wall of the blood collection tube, and the blood;

s6: rotating the chuck to enable the four grooves and the four clamping blocks to be in the same horizontal line, moving the needle head seat rightwards, taking the needle head seat out of the clamping seat, pulling the adjusting ring upwards to enable the two first tooth blocks on the inner wall of the adjusting ring to move out of the interior of one part of the plurality of second tooth blocks, enabling the three arc-shaped reeds to contract inwards, moving the adjusting ring leftwards, stopping moving the adjusting ring when the adjusting ring is in contact with the right side of the limiting plate, enabling the two first tooth blocks in the adjusting ring to be meshed with one part of the plurality of second tooth blocks, and fixing the adjusting ring on the left side of the sleeve;

s7: pulling the pull block left makes the piston rod move left, the piston rod moves left and drives the piston move left, compress the first spring of two springs when the piston moves left, stop the pulling and pull block when dog and adjustable ring right side contact, then put into the pipe inside with the water pipe, and press the water pipe and move down, it is downward to drive first fixed plate, when first fixed plate both sides and pipe inner wall no longer contact, water gets into inside the section of thick bamboo of drawing blood from two water inlets on the second fixed link, then loosen and pull the block, the first spring of two springs begins to outwards extend when losing external effort, promote the piston to move right simultaneously, the inside water that will get into the section of thick bamboo of drawing blood is discharged outside the section of thick bamboo of drawing blood through the hose.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the poultry blood drawing device, the sleeve, the arc-shaped reed, the pulley, the stop block, the limiting plate, the adjusting ring, the first tooth block, the scale mark and the second tooth block are mutually matched for use, so that a veterinarian can quantitatively collect blood volume of poultry when using the blood drawing device, and the influence on the next work caused by too much or too little blood volume collection is prevented.

2. According to the invention, the discs, the arc-shaped plates, the rotating shaft, the connecting block, the second movable plate, the supporting rod, the fixing mechanism, the second fixed seat, the handle, the threaded rod, the sliding block and the limiting block are mutually matched for use, so that a veterinarian can conveniently replace the blood sampling tube, and thus, blood samples of different types of poultry animals can be conveniently collected.

3. According to the invention, through mutual use among the electric telescopic rod, the first rotating rod, the second rotating rod, the inclined rod, the first fixing block, the second spring, the supporting plate, the second fixing block, the movable rod, the first fixing seat, the first movable plate, the first connector, the connecting seat, the second connector and the third rotating rod, a veterinarian can fix the poultry animal when using the blood drawing device, and the animal can be prevented from moving randomly to influence the smooth operation of blood drawing when the poultry animal is subjected to blood drawing.

Drawings

Fig. 1 is a front view of the present invention.

FIG. 2 is an enlarged view of the invention at A in FIG. 1.

Fig. 3 is an enlarged view of the invention at B in fig. 1.

Fig. 4 is an enlarged view of the invention at C in fig. 1.

Figure 5 is a partial top view of a device of the present invention for extracting blood vessels.

FIG. 6 is a top view of the component base of the present invention.

Fig. 7 is a top view of the component connecting socket of the present invention.

Fig. 8 is a front view of the component fastening mechanism of the present invention.

Fig. 9 is a front view of a needle mount of the present invention.

Figure 10 is a right side view of a component cartridge of the present invention.

Reference numbers in the figures: 1. a base; 2. a universal wheel; 3. an electric telescopic rod; 4. an L-shaped rod; 5. pulling the block; 6. a sleeve; 7. an arc reed; 8. a pulley; 9. a stopper; 10. a piston rod; 11. a limiting plate; 12. an adjusting ring; 13. a first tooth block; 14. scale lines; 15. a second tooth block; 16. a blood drawing tube; 17. a first spring; 18. a piston; 19. a hose; 20. a needle head; 21. a first rotating lever; 22. a second rotating rod; 23. a diagonal bar; 24. a first fixed block; 25. a second spring; 26. a support plate; 27. a second fixed block; 28. a movable rod; 29. a first fixed seat; 30. a first movable plate; 31. a first connector; 32. a connecting seat; 33. a second connector; 34. a third rotating rod; 35. a water inlet mechanism; 351. a conduit; 352. a first fixing plate; 353. a third spring; 354. a connecting rod; 355. a second fixing bar; 36. a clamping mechanism; 361. a disc; 362. an arc-shaped plate; 363. a rotating shaft; 364. connecting blocks; 365. a second movable plate; 366. a support bar; 37. a fixing mechanism; 371. a second fixed seat; 372. a handle; 373. a threaded rod; 374. a slider; 375. a limiting block; 38. discharging blood vessels; 39. a blood collection tube; 40. a card seat mechanism; 401. a card holder; 402. a card slot; 403. clamping a head; 41. a needle head seat; 42. a clamping block; 43. and (7) fixing the plate.

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.

Referring to fig. 1-10, the present invention provides a technical solution: an avian animal blood drawing device for veterinarian comprises a horizontally arranged base 1, wherein a first fixed seat 29 is fixedly connected at the position, close to the center, of the top of the base 1, a plurality of second fixed plates 43 are fixedly connected at the position, close to the center, of the side wall of the first fixed seat 29, a plurality of second fixed plates 43 are symmetrically arranged front and back and left and right with the center line of the first fixed seat 29 as a symmetry axis, a plurality of first bearings are respectively arranged at one sides, corresponding to the second fixed plates 43, a plurality of first bearing inner cavities are movably connected with a second rotating rod 22, a movable rod 28 is movably connected on the second rotating rod 22 far away from the center line of the first fixed seat 29, an inclined rod 23 is movably connected on the second rotating rod 22 near the center line of the first fixed seat 29, and first fixed blocks 24 are fixedly connected on the upper and lower sides of the inclined rod 23 far away from the center line of the first fixed seat 29, the upper and lower sides of one side of the movable rod 28 close to the center line of the first fixing seat 29 are fixedly connected with second fixing blocks 27, one side of the two first fixing blocks 24 corresponding to the two second fixing blocks 27 is fixedly connected with second springs 25, the top of the first fixing seat 29 is provided with a plurality of supporting plates 26, the supporting plates 26 are symmetrically arranged in front and back directions by taking the center line of the first fixing seat 29 as a symmetry axis, one side of the plurality of supporting plates 26 corresponding to the second bearings is fixedly connected with a plurality of second bearings, the inner cavities of the plurality of second bearings are movably connected with a first rotating rod 21, the top end of the inclined rod 23 and the first rotating rod 21 close to the center of the first fixing seat 29 are movably connected with the top end of the movable rod 28 and the first rotating rod 21 far away from the center of the first fixing seat 29, and both sides of the movable rod 28 close to the bottom end are movably connected with, the inner wall of the bottom of the base 1 is fixedly connected with an electric telescopic rod 3 close to a central line, the top end of the electric telescopic rod 3 is movably connected with a first connector 31, the top end of the first connector 31 is fixedly connected with a connecting seat 32, the side wall of the connecting seat 32 is fixedly connected with a plurality of second connectors 33 close to the center, the plurality of second connectors 33 are symmetrically arranged front and back and left and right with the central line of the first connector 31 as a symmetry axis, the inner cavity of the second connector 33 is movably connected with a third rotating rod 34, two ends of the third rotating rod 34 are respectively movably connected with the bottom of the two first movable plates 30 close to the center, the left side of the base 1 is movably connected with an L-shaped rod 4 close to the central line, the top end of the L-shaped rod 4 is fixedly connected with a blood drawing tube 16, the right side of the inner cavity of the blood drawing tube 16 is movably connected with a, the left side and the right side of the two first springs 17 are fixedly connected with the left side of the piston 18 on the inner wall on the left side of the blood drawing tube 16 respectively, the left side of the blood drawing tube 16 is close to the center and is provided with a first opening, the inner cavity of the first opening is movably connected with the inner cavity of the sleeve 6 and is fixedly connected with the sleeve 6, the right side of the piston rod 10 is fixedly connected with the left side of the piston 18 close to the center, the front side of the piston rod 10 is fixedly connected with a stop block 9 close to the center, the left side of the sleeve 6 is fixedly connected with a limit plate 11, the inner cavity of the limit plate 11 is provided with a through hole, the left end of the piston rod 10 penetrates through the inner cavity of the through hole and is fixedly connected with a pull block 5, the front side of the sleeve 6 close to the top is provided with a scale mark 14, the top, the inner wall of the top of the adjusting ring 12 is fixedly connected with two first tooth blocks 13, the two first tooth blocks 13 are meshed with a plurality of second tooth blocks 15, the inner wall of the bottom of the adjusting ring 12 is fixedly connected with a plurality of arc-shaped reeds 7, the top ends of the arc-shaped reeds 7 are movably connected with pulleys 8, the bottom of the sleeve 6 is provided with a second chute, the pulleys 8 are movably connected with an inner cavity of the second chute, the top of the blood drawing tube 16 is provided with a second opening near the right side, the inner cavity of the second opening is provided with a water inlet mechanism 35, the water inlet mechanism 35 comprises a guide tube 351, the bottom end of the guide tube 351 is fixedly connected with the inner cavity of the second opening, the inner cavity is provided with a first fixing plate 352 near the top, the left side and the right side of the first fixing plate 352 are fixedly connected with the inner walls of the two, the connecting rod 354 is provided with a third spring 353, the top of the third spring 353 is fixedly connected with the bottom of the first fixing plate 352 near the center, the inner cavity of the guide tube 351 is provided with a second fixing rod 355 near the bottom, the second fixing rod 355 near the center is provided with a fifth opening, the bottom of the connecting rod 354 penetrates through the inner cavity of the fifth opening, the second fixing rod 355 is provided with two water inlets, the bottom of the blood drawing tube 16 near the right side is provided with a third opening, the inner cavity of the third opening is fixedly connected with a blood outlet tube 38, the bottom of the blood drawing tube 16 near the right side is movably connected with a blood sampling tube 39, the bottom of the blood outlet tube 38 is positioned inside the blood sampling tube 39, the bottom of the blood drawing tube 16 near the left side is provided with a fixing mechanism 37, the fixing mechanism 37 comprises a second fixing seat 371, and the top of the second fixing seat 371 is fixedly connected with the bottom, the left side and the right side of the second fixing seat 371 are both provided with sixth openings, the inner cavity of each sixth opening is provided with a fourth bearing, the inner cavity of each fourth bearing is movably connected with a threaded rod 373, the left end of each threaded rod 373 is fixedly connected with a handle 372, the right end of each handle 372 is fixedly connected with a limiting block 375, each threaded rod 373 is connected with a sliding block 374 in a sliding manner, the inner cavity of each sliding block 374 is provided with threads matched with the corresponding threaded rod 373, the bottom of each sliding block 374 is fixedly connected with the top of a connecting block 364 close to the front side, the bottom of the blood drawing tube 16 close to the center is provided with a clamping mechanism 36, each clamping mechanism 36 comprises a disc 361, an annular chute is arranged inside each disc 361, the upper side and the lower side of the inner cavity of each annular chute are respectively provided with a plurality of third bearings, the inner cavities of the, one end of the second movable plates 365 close to the center line of the disc 361 is located inside the disc 361, an arc-shaped plate 362 is fixedly connected to the second movable plate 365 located inside the disc 361, the inside of the arc-shaped plate 362 is in contact with the side wall of the blood collection tube 39, a support rod 366 is fixedly connected to the top of one end of the second movable plate 365 away from the center of the disc 361 and close to the center, the top end of the support rod 366 is fixedly connected to the bottom of the blood collection tube 16, a connecting block 364 is fixedly connected to the front side of the disc 361 and close to the center, a fourth opening is formed in the left side of the blood collection tube 16 and close to the center, a hose 19 is fixedly connected to the inner cavity of the fourth opening, a clamping mechanism 40 is arranged at the right end of the hose 19, the clamping mechanism 40 comprises a clamping seat 401, the left side of the clamping seat 401 and close to the, a plurality of clamping grooves 402 are arranged on the clamping seat 401, four clamping grooves 402 are arranged, four clamping grooves 402 are symmetrically arranged up and down and back and forth with the central line of the clamping seat 401 as a symmetrical axis, the clamping grooves 402 are movably connected with clamping blocks 42, a seventh opening is arranged at the position, close to the center, of the right side of the clamping seat 401, a fifth bearing is arranged in the inner cavity of the seventh opening, a clamping head 403 is movably connected to the inner cavity of the fifth bearing, a plurality of grooves are arranged in the clamping head 403, the plurality of grooves are matched with the clamping blocks 42, a needle head seat 41 is movably connected at the right end of the hose 19, a plurality of clamping blocks 42 are fixedly connected to the side wall of the needle head seat 41, a plurality of clamping blocks 42 are symmetrically arranged up and down and back and forth with the central line of the needle head seat 41 as a symmetrical axis, a needle head 20 is fixedly connected, the four universal wheels 2 are movably connected, and the four universal wheels 2 are symmetrically arranged in a front-back and left-right mode by taking the central line of the base 1 as a symmetric axis.

A method of using a veterinary avian blood drawing device comprising the steps of:

s1: the blood drawing device is pushed to a proper place through the universal wheels 2 to draw blood of the poultry, the poultry to be drawn blood is placed above the first fixed seat 29, then the electric telescopic rod 3 is started through an external power supply, the electric telescopic rod 3 is contracted inwards to drive the first connecting head 31 to move downwards, the first connecting head 31 moves downwards to drive the connecting seat 32 to move downwards, the connecting seat 32 moves downwards to drive the eight first movable plates 30 to start rotating towards the center line of the base 1, the eight first movable plates 30 start rotating towards the center line of the base 1 to drive the four movable rods 28 and the inclined rods 23 to rotate towards the center line of the base 1, and the four movable rods 28 and the inclined rods 23 rotate towards the center line of the base 1 to drive the eight supporting plates 26 to move towards the center line of the base 1;

s2: placing four fixture blocks 42 and four grooves in chuck 403 on the same horizontal line, moving needle head base 41 leftward to enable four fixture blocks 42 to be located in clamp groove 402, rotating chuck 403 to enable four fixture blocks 42 and four grooves not to be on the same horizontal line, and fixing needle head base 41 in clamp seat 401;

s3: placing the blood collection tube 39 inside the disc 361, then rotating the handle 372 forward to rotate the threaded rod 373 forward, rotating the threaded rod 373 forward to drive the slider 374 to move leftward, moving the slider 374 leftward to drive the connecting block 364 to move leftward, moving the connecting block 364 leftward to drive the disc 361 to start rotating leftward, rotating the disc 361 leftward to drive the three rotating shafts 363 to rotate forward, rotating the three rotating shafts 363 forward to drive one ends of the three second movable plates 365 located inside the disc 361 to start moving toward the center of the disc 361, so that the three arc-shaped plates 362 move toward the center of the disc 361, thereby fixing the blood collection tube 39 inside the disc 361, allowing the top end of the blood collection tube 39 to contact with the bottom of the blood collection tube 16, and allowing the blood outlet tube 38 to be located inside the blood collection tube 39;

s4: pulling the adjusting ring 12 upwards to move two first tooth blocks 13 on the inner wall of the adjusting ring 12 out of the interior of a part of a plurality of second tooth blocks 15, so that three arc-shaped reeds 7 contract inwards, then moving the adjusting ring 12 left and right to drive a pulley 8 of the electric telescopic rod 3 to move left and right in a second sliding chute, stopping pulling the adjusting ring 12 upwards when the adjusting ring 12 moves to a proper position of a scale mark 14, so that the two first tooth blocks 13 in the adjusting ring 12 are meshed with a part of the plurality of second tooth blocks 15, thereby fixing the adjusting ring 12 in a proper position, then pricking the needle 20 into the blood vessel of the poultry animal, then holding the pulling block 5 to move leftwards, moving the pulling block 5 leftwards to drive the piston rod 10 to move towards, moving the piston rod 10 leftwards to drive the piston 18 to move leftwards, moving the piston 18 leftwards to enter the blood of the poultry animal into the blood drawing tube 16 through a plurality of hoses, then flows into the blood collection tube 39 through the blood outlet tube 38, and when the stop block 9 is contacted with the right side of the adjusting ring 12, the pulling block 5 is stopped to be pulled to finish blood drawing;

s5: the handle 372 is rotated reversely to drive the threaded rod 373 to rotate reversely, the threaded rod 373 rotates reversely to drive the sliding block 374 to move rightwards, the sliding block 374 moves rightwards to drive the connecting block 364 to move rightwards, the connecting block 364 moves rightwards to drive the disc 361 to rotate rightwards, the disc 361 rotates rightwards, the three rotating shafts 363 rotate rightwards to drive one ends of the three second movable plates 365 in the disc 361 to move away from each other, so that the three arc-shaped plates 362 move away from each other, the insides of the three arc-shaped plates 362 are separated from the side wall of the blood collection tube 39, and the blood collection tube 39 is taken out of the disc 361;

s6: rotating the chuck 403 to make the four grooves and the four fixture blocks 42 in the same horizontal line, moving the needle head holder 41 to the right, taking the needle head holder 41 out of the interior of the chuck 401, pulling the adjusting ring 12 upward to make the two first tooth blocks 13 on the inner wall of the adjusting ring 12 move out of the interior of one part of the plurality of second tooth blocks 15, so that the three arc-shaped reeds 7 contract inward, then moving the adjusting ring 12 to the left, stopping moving the adjusting ring 12 when the adjusting ring 12 is in contact with the right side of the limiting plate 11, so that the two first tooth blocks 13 in the adjusting ring 12 are meshed with one part of the plurality of second tooth blocks 15, and fixing the adjusting ring 12 at the left side of the sleeve;

s7: pulling the pull block 5 leftwards to make the piston rod 10 move leftwards, the piston rod 10 moves leftwards to drive the piston 18 to move leftwards, when the piston 18 moves leftwards, the first springs 17 of the two springs are compressed, when the stop block 9 is in contact with the right side of the adjusting ring 12, the pull block 5 stops being pulled, then the water pipe is placed into the guide pipe 351 and presses the water pipe to move downwards, the first fixing plate 352 is driven downwards, when two sides of the first fixing plate 352 are not in contact with the inner wall of the guide pipe 351, water enters the blood drawing cylinder 16 from the two water inlets on the second fixing rod 355, then the pull block 5 is released, the first springs 17 of the two springs start extending outwards when external acting force is lost, meanwhile, the piston 18 is pushed to move rightwards, and water entering the blood drawing cylinder 16 is discharged to the outside of the blood drawing cylinder.

The working principle is as follows: when an animal doctor needs to use the blood drawing device to draw blood for poultry, the animal doctor pushes the blood drawing device to a proper position through the universal wheels 2 to draw blood for poultry, the poultry to be drawn blood is placed above the first fixed seat 29, then the electric telescopic rod 3 is started through the external power supply, the electric telescopic rod 3 is contracted inwards to drive the first connecting head 31 to move downwards, the first connecting head 31 moves downwards to drive the connecting seat 32 to move downwards, the connecting seat 32 moves downwards to drive the eight first movable plates 30 to start rotating towards the center line of the base 1, the eight first movable plates 30 start rotating towards the center line of the base 1 to drive the four movable rods 28 and the inclined rods 23 to rotate towards the center line of the base 1, the four movable rods 28 and the inclined rods 23 rotate towards the center of the base 1 to drive the eight supporting plates 26 to move towards the center line of the base 1, therefore, the poultry animal is fixed on the first fixing seat 29, the situation that when the veterinarian draws blood on the poultry animal, the animal shakes to influence the blood drawing work is prevented, then the veterinarian places the four clamping blocks 42 and the four grooves in the clamping head 403 on the same horizontal line, then moves the needle head seat 41 leftwards to enable the four clamping blocks 42 to be located in the clamping groove 402, then rotates the clamping head 403 to enable the four clamping blocks 42 and the four grooves not to be on the same horizontal line, so that the needle head seat 41 is fixed in the clamping seat 401, the effect of replacing the needle head 20 is achieved, when the veterinarian draws blood on different poultry animals, the poultry animal cannot be harmed by repeated use of the needle head 20, then the veterinarian places the blood collection tube 39 in the disc 361, then rotates the handle 372 forwards to enable the threaded rod 373 to rotate forwards, the threaded rod 373 forwards rotates forwards to drive the sliding block 374 to move leftwards, the sliding block 374, the connecting block 364 moves leftwards to drive the disc 361 to start rotating leftwards, the disc 361 rotates leftwards to start rotating the three rotating shafts 363 to start rotating forwards, the three rotating shafts 363 rotate forwards to drive one ends of the three second movable plates 365 positioned inside the disc 361 to start moving towards the center of the disc 361, so that the three arc-shaped plates 362 move towards the center of the disc 361, so that the blood collection tube 39 is fixed inside the disc 361, the top end of the blood collection tube 39 is in contact with the bottom of the blood collection tube 16, and the blood outlet tube 38 is positioned inside the blood collection tube 39, when a veterinarian performs blood collection on different animals, the veterinarian can quickly replace the blood collection tube 39, the blood collection efficiency is improved, then the veterinarian pulls the adjusting ring 12 upwards to move the two first tooth blocks 13 on the inner wall of the adjusting ring 12 out of one part of the plurality of second tooth blocks 15, so that the three arc-shaped reeds, then the adjusting ring 12 is moved left and right to drive the pulleys 8 of the electric telescopic rod to move left and right in the second chute, when the adjusting ring 12 moves to a proper position of a scale mark 14, the adjusting ring 12 stops being pulled upwards, two first tooth blocks 13 in the adjusting ring 12 are meshed with a part of a plurality of second tooth blocks 15, so that the adjusting ring 12 is fixed at the proper position, then the needle 20 is pricked into the blood vessel of the poultry animal, then the pulling block 5 is held to move leftwards, the pulling block 5 moves leftwards to drive the piston rod 10 to move towards, the piston rod 10 moves leftwards to drive the piston 18 to move leftwards, the piston 18 moves leftwards to drive the blood of the poultry animal to enter the blood drawing tube 16 through the multi-hose 19, then the blood flows into the blood collecting tube 39 through the blood outlet tube 38, when the stop 9 is contacted with the right side of the adjusting ring 12, the pulling block 5 stops being pulled to draw the, prevent the subsequent work from being influenced by too much or too little blood drawing, then the veterinarian rotates the handle 372 reversely to drive the threaded rod 373 to rotate reversely, the threaded rod 373 rotates reversely to drive the slide block 374 to move rightwards, the slide block 374 moves rightwards to drive the connecting block 364 to move rightwards, the connecting block 364 moves rightwards to drive the disk 361 to rotate rightwards, the disk 361 rotates rightwards to drive the three rotating shafts 363 to rotate reversely, the three rotating shafts 363 rotate reversely to drive one ends of the three second movable plates 365 in the disk 361 to move away from each other, so that the three arc-shaped plates 362 move away from each other, the three arc-shaped plates 362 are separated from the side wall of the blood taking tube 39, the blood taking tube 39 is taken out from the disk 361 to perform the next work, then the veterinarian rotates the chuck 403 by hand to enable the, taking the needle head seat 41 out of the clamping seat 401, pulling the adjusting ring 12 upwards to move the two first tooth blocks 13 on the inner wall of the adjusting ring 12 out of the interior of a part of the plurality of second tooth blocks 15, so that the three arc-shaped reeds 7 contract inwards, then moving the adjusting ring 12 leftwards, stopping moving the adjusting ring 12 when the adjusting ring 12 is in contact with the right side of the limiting plate 11, engaging the two first tooth blocks 13 inside the adjusting ring 12 with a part of the plurality of second tooth blocks 15, fixing the adjusting ring 12 at the left side of the sleeve 6, simultaneously pulling the pulling block 5 leftwards to move the piston rod 10 leftwards, moving the piston rod 10 leftwards to drive the piston 18 to move leftwards, compressing the two first spring springs 17 when the piston 18 moves leftwards, stopping pulling the pulling block 5 when the stop 9 is in contact with the right side of the adjusting ring 12, then placing the water pipe into the guide 351 and pressing the water pipe to, the first fixing plate 352 is driven to move downwards, when two sides of the first fixing plate 352 are not in contact with the inner wall of the conduit 351 any more, water enters the blood drawing tube 16 from the two water inlets on the second fixing rod 355, then the pulling block 5 is loosened, the two first springs 17 of the springs extend outwards when the external acting force is lost, and simultaneously the piston 18 is pushed to move rightwards, so that the water entering the blood drawing tube 16 is discharged to the outside of the blood drawing tube 16 through the hose 19, the inside of the blood drawing tube 16 and the inside of the hose 19 are cleaned, no residual blood stain exists inside the blood drawing tube 16 and the hose 19, and when a veterinarian draws blood for different animals, the blood stains remained by the animals exist inside the blood drawing tube 16 or the hose 19, so that the blood of the two animals are mixed together, the blood drawing work is influenced, the work is repeated, and the device for the veteran carries out blood drawing for different poultry animals, the above is the whole working process of the invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a veterinary is with poultry blood drawing device, includes base (1) of horizontal setting, its characterized in that: the top of the base (1) is close to a center and fixedly connected with a first fixing seat (29), the side wall of the first fixing seat (29) is close to the center and fixedly connected with a plurality of second fixing plates (43), the second fixing plates (43) are arranged in a front-back bilateral symmetry manner by taking the center line of the first fixing seat (29) as a symmetry axis, one sides of the second fixing plates (43) corresponding to each other are respectively provided with a plurality of first bearings, the inner cavities of the first bearings are movably connected with second rotating rods (22), the second rotating rods (22) far away from the center line of the first fixing seat (29) are movably connected with movable rods (28), the second rotating rods (22) near the center line of the first fixing seat (29) are movably connected with inclined rods (23), the upper and lower sides of the inclined rods (23) far away from one side of the center line of the first fixing seat (29) are respectively and fixedly connected with first fixing blocks (24), the upper and lower sides of the movable rod (28) close to one side of the center line of the first fixing seat (29) are fixedly connected with second fixing blocks (27), two first fixing blocks (24) and one side corresponding to the two second fixing blocks (27) are fixedly connected with second springs (25), the top of the first fixing seat (29) is provided with a plurality of supporting plates (26), the supporting plates (26) are arranged in a front-back and left-right symmetrical manner by taking the center line of the first fixing seat (29) as a symmetrical axis, one side corresponding to the supporting plates (26) is fixedly connected with a plurality of second bearings, the inner cavities of the second bearings are movably connected with first rotating rods (21), the top ends of the inclined rods (23) are movably connected with the top ends of the first rotating rods (21) close to the center of the first fixing seat (29) and movably connected with the first rotating rods (21) far away from the center of the first fixing seat (29), the two sides of the movable rod (28) close to the bottom end are movably connected with first movable plates (30), the inner wall of the bottom of the base (1) is close to a central line and fixedly connected with an electric telescopic rod (3), the top end of the electric telescopic rod (3) is movably connected with a first connector (31), the top end of the first connector (31) is fixedly connected with a connecting seat (32), the side wall of the connecting seat (32) is close to the center and fixedly connected with a plurality of second connectors (33), the second connectors (33) are symmetrically arranged in a front-back and left-right mode by taking the central line of the first connector (31) as a symmetrical axis, the inner cavity of each second connector (33) is movably connected with a third rotating rod (34), the two ends of each third rotating rod (34) are respectively movably connected with the bottoms of the two first movable plates (30) close to the center, and the left side of the base (1) is, the blood drawing tube (16) is fixedly connected to the top end of the L-shaped rod (4), a piston (18) is movably connected to the right side of an inner cavity of the blood drawing tube (16), first springs (17) are arranged on the upper side and the lower side of the inner cavity of the blood drawing tube (16), the left side and the right side of each first spring (17) are fixedly connected to the left side of the piston (18) on the left side of the inner wall of the blood drawing tube (16) respectively, a sleeve (6) is fixedly connected to the left side of the blood drawing tube (16) close to the center, a first opening is formed in the left side of the blood drawing tube (16) close to the center, a piston rod (10) is movably connected to the inner cavity of the sleeve (6), the right side of the piston rod (10) is fixedly connected to the left side of the piston (18) close to the center, a stopper (9) is fixedly connected to the front side of the piston rod, the limiting plate (11) inner chamber is provided with a through hole, the left end of the piston rod (10) penetrates through the through hole inner chamber and is fixedly connected with a pulling block (5), the front side of the sleeve (6) is provided with a scale mark (14) near the top, the top of the sleeve (6) is fixedly connected with a plurality of second tooth blocks (15), the sleeve (6) is movably connected with an adjusting ring (12), the inner wall of the top of the adjusting ring (12) is fixedly connected with two first tooth blocks (13), the two first tooth blocks (13) are mutually meshed with the plurality of second tooth blocks (15), the inner wall of the bottom of the adjusting ring (12) is fixedly connected with a plurality of arc reeds (7), the top of the arc reeds (7) is movably connected with a pulley (8), the top of the blood drawing tube (16) is provided with a second opening near the right side, and the inner chamber of the second opening, a third opening is formed in the bottom of the blood drawing tube (16) close to the right side, a blood outlet tube (38) is fixedly connected to the inner cavity of the third opening, a blood sampling tube (39) is movably connected to the bottom of the blood drawing tube (16) close to the right side, the bottom end of the blood outlet tube (38) is located inside the blood sampling tube (39), a fixing mechanism (37) is arranged at the bottom of the blood drawing tube (16) close to the left side, a clamping mechanism (36) is arranged at the bottom of the blood drawing tube (16) close to the center, a fourth opening is formed in the left side of the blood drawing tube (16) close to the center, a hose (19) is fixedly connected to the inner cavity of the fourth opening, a clamping mechanism (40) is arranged at the right end of the hose (19), a needle head seat (41) is movably connected to the right end of the hose (19), a plurality of clamping blocks (42) are fixedly connected to the side wall of the needle head seat (41), and the plurality, the syringe needle seat (41) is fixedly connected with a syringe needle (20) in the inner cavity, and the bottom of the base (1) is movably connected with a plurality of universal wheels (2).

2. A veterinary avian blood drawing device according to claim 1 wherein: the water inlet mechanism (35) comprises a guide pipe (351), the bottom end of the guide pipe (351) is fixedly connected to an inner cavity of the second opening, a first fixing plate (352) is arranged at the position, close to the top, of the inner cavity, the left side and the right side of the first fixing plate (352) are fixedly connected with the inner walls of the two sides of the guide pipe (351), a connecting rod (354) is fixedly connected to the position, close to the center, of the bottom of the first fixing plate (352), a third spring (353) is arranged on the connecting rod (354), the top of the third spring (353) is fixedly connected with the bottom of the first fixing plate (352) and the position, a second fixing rod (355) is arranged at the position, close to the center, of the second fixing rod (355) and provided with a fifth opening, the bottom end of the connecting rod (354) penetrates through the inner cavity of the fifth.

3. A veterinary avian blood drawing device according to claim 1 wherein: the clamping mechanism (36) comprises a disc (361), an annular chute is arranged inside the disc (361), a plurality of third bearings are arranged on the upper side and the lower side of an inner cavity of the annular chute, a plurality of rotating shafts (363) are movably connected to an inner cavity of the third bearings, a plurality of second movable plates (365) are movably connected to the rotating shafts (363), a plurality of second movable plates (365) are arranged inside the disc (361) at the ends, close to the center line of the disc (361), of the second movable plates (365), an arc-shaped plate (362) is fixedly connected to the second movable plates (365) inside the disc (361), the inner portion of each arc-shaped plate (362) is in contact with the side wall of the blood collection tube (39), a supporting rod (366) is fixedly connected to the top of one end, far away from the center of the disc (361), close to the center, of the top of the supporting rod (366), and the, the front side of the disc (361) is fixedly connected with a connecting block (364) near the center.

4. A veterinary avian blood drawing device according to claim 1 wherein: fixed establishment (37) includes second fixing base (371), second fixing base (371) top and blood drawing tube (16) bottom fixed connection, the sixth opening has all been seted up to the second fixing base (371) left and right sides, the sixth opening inner chamber is equipped with the fourth bearing, fourth bearing inner chamber swing joint has threaded rod (373), threaded rod (373) left end fixedly connected with handle (372), handle (372) right-hand member fixedly connected with stopper (375), sliding connection has slider (374) on threaded rod (373), just slider (374) inner chamber is seted up with threaded rod (373) assorted screw thread, and slider (374) bottom and connecting block (364) top are close to front side department fixed connection.

5. A veterinary avian blood drawing device according to claim 1 wherein: the clamping mechanism (40) comprises a clamping seat (401), the left side of the clamping seat (401) is close to the center and fixedly connected with the right end of a hose (19), the clamping seat (401) is clamped with a needle head seat (41), a plurality of clamping grooves (402) are formed in the clamping seat (401), the four clamping grooves (402) are arranged, the four clamping grooves (402) are symmetrically arranged up and down and back and forth by taking the center line of the clamping seat (401) as a symmetry axis, the clamping grooves (402) are movably connected with a clamping block (42), a seventh opening is formed in the right side of the clamping seat (401) close to the center, a fifth bearing is arranged in the inner cavity of the seventh opening, a clamping head (403) is movably connected to the inner cavity of the fifth bearing, a plurality of grooves are formed in the clamping head (403), and the grooves are matched with the clamping block (42).

6. The veterinary avian animal blood drawing device according to claim 5, wherein: a second sliding groove is formed in the bottom of the sleeve (6), and the pulley (8) is movably connected to the inner cavity of the second sliding groove.

7. A veterinary avian blood drawing device according to claim 1 wherein: the four universal wheels (2) are movably connected with four, and the four universal wheels (2) are symmetrically arranged in front and back and left and right directions by taking the central line of the base (1) as a symmetry axis.

8. Use of a veterinary avian blood drawing device according to any one of claims 1 to 7, comprising the steps of:

s1: the blood drawing device is pushed to a proper place through the universal wheel (2) to draw blood of the poultry, the poultry to be drawn blood is placed above the first fixed seat (29), then the electric telescopic rod (3) is started through an external power supply, the electric telescopic rod (3) is contracted inwards to drive the first connecting head (31) to move downwards, the first connecting head (31) moves downwards to drive the connecting seat (32) to move downwards, the connecting seat (32) moves downwards to drive the eight first movable plates (30) to rotate towards the central line of the base (1), the eight first movable plates (30) start to rotate towards the central line of the base (1) to drive the four movable rods (28) and the inclined rods (23) to rotate towards the central line of the base (1), and the four movable rods (28) and the inclined rods (23) rotate towards the center of the base (1), the eight supporting plates (26) are driven to move towards the central line of the base (1);

s2: placing the four fixture blocks (42) and four grooves in the clamping head (403) on the same horizontal line, moving the needle head seat (41) leftwards to enable the four fixture blocks (42) to be located in the clamping grooves (402), and rotating the clamping head (403) to enable the four fixture blocks (42) and the four grooves not to be on the same horizontal line, so that the needle head seat (41) is fixed in the clamping seat (401);

s3: the blood collection tube (39) is placed inside the disc (361), then the handle (372) is rotated in the positive direction, the threaded rod (373) is rotated in the positive direction to drive the sliding block (374) to move leftwards, the sliding block (374) moves leftwards to drive the connecting block (364) to move leftwards, the connecting block (364) moves leftwards to drive the disc (361) to start rotating leftwards, the disc (361) rotates leftwards to drive the three rotating shafts (363) to start rotating positively, the three rotating shafts (363) rotate positively to drive one ends of the three second movable plates (365) positioned inside the disc (361) to start moving towards the center of the disc (361), thereby causing the three arc plates (362) to move toward the center of the disk (361), thereby fixing the blood sampling tube (39) in the disc (361), making the top end of the blood sampling tube (39) contact with the bottom of the blood drawing tube (16), and making the blood outlet tube (38) positioned in the blood sampling tube (39);

s4: the adjusting ring (12) is pulled upwards, two first tooth blocks (13) on the inner wall of the adjusting ring (12) are moved out of the interior of one part of a plurality of second tooth blocks (15), so that three arc-shaped reeds (7) contract inwards, then the adjusting ring (12) is moved leftwards and rightwards to drive pulleys (8) of the electric telescopic rod (3) to move leftwards and rightwards in a second sliding chute, when the adjusting ring (12) moves to a proper position of a scale mark (14), the upward pulling of the adjusting ring (12) is stopped, two first tooth blocks (13) in the adjusting ring (12) are meshed with one part of the plurality of second tooth blocks (15), so that the adjusting ring (12) is fixed at a proper position, then a needle head (20) is pricked into a blood vessel of a poultry animal, then the pulling block (5) is held to move leftwards, the pulling block (5) moves leftwards to drive a piston rod (10) to move towards the, the piston rod (10) moves leftwards to drive the piston (18) to move leftwards, the piston (18) moves leftwards to enable blood of the poultry to enter the blood drawing cylinder (16) through the multi-hose (19) and then flow into the blood drawing tube (39) through the blood outlet tube (38), and when the stop block (9) is in contact with the right side of the adjusting ring (12), the pull block (5) is stopped being pulled to finish blood drawing;

s5: the handle (372) is rotated reversely to drive the threaded rod (373) to rotate reversely, the threaded rod (373) rotates reversely to drive the sliding block (374) to move rightwards, the sliding block (374) moves rightwards to drive the connecting block (364) to move rightwards, the connecting block (364) moves rightwards to drive the disc (361) to start rotating rightwards, the disc (361) rotates rightwards, the three rotating shafts (363) start rotating reversely, the three rotating shafts (363) rotate reversely to drive one ends of the three second movable plates (365) located inside the disc (361) to move away from each other, so that the three arc-shaped plates (362) move away from each other, the insides of the three arc-shaped plates (362) are separated from the side wall of the blood collection tube (39), and the blood collection tube (39);

s6: rotating the chuck (403) to enable the four grooves and the four clamping blocks (42) to be positioned on the same horizontal line, moving the needle head seat (41) to the right, taking the needle head seat (41) out of the clamping seat (401), pulling the adjusting ring (12) upwards to enable the two first tooth blocks (13) on the inner wall of the adjusting ring (12) to be moved out of the interior of one part of the plurality of second tooth blocks (15), enabling the three arc-shaped reeds (7) to contract inwards, then moving the adjusting ring (12) to the left, stopping moving the adjusting ring (12) when the adjusting ring (12) is in contact with the right side of the limiting plate (11), enabling the two first tooth blocks (13) in the adjusting ring (12) to be meshed with one part of the plurality of second tooth blocks (15), and fixing the adjusting ring (12) on the left side of the sleeve;

s7: the pull block (5) is pulled leftwards to enable the piston rod (10) to move leftwards, the piston rod (10) moves leftwards to drive the piston (18) to move leftwards, the piston (18) compresses the first springs (17) of the two springs when moving leftwards, when the stop block (9) is contacted with the right side of the adjusting ring (12), the pulling block (5) is stopped to be pulled, then the water pipe is put into the conduit (351) and pressed to move downwards to drive the first fixing plate (352) to move downwards, when two sides of the first fixing plate (352) are not contacted with the inner wall of the conduit (351), water enters the blood drawing barrel (16) from two water inlets on the second fixing rod (355), then the pulling block (5) is released, the first two springs (17) begin to extend outwards when the external acting force is lost, meanwhile, the piston (18) is pushed to move rightwards, and water entering the blood drawing cylinder (16) is drained to the outside of the blood drawing cylinder (16) through a hose (19).

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