CN115491293A

CN115491293A - Quick sampling device is used in biological enzyme detection

Info

Publication number: CN115491293A
Application number: CN202211442573.0A
Authority: CN
Inventors: 李钊
Original assignee: Shenzhen Xijiya Biotechnology Co ltd
Current assignee: Shenzhen Xijiya Biotechnology Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2022-12-20
Anticipated expiration: 2042-11-18
Also published as: CN115491293B

Abstract

The invention belongs to the technical field of sampling devices, and particularly relates to a rapid sampling device for detecting biological enzymes. Before the sample, cup joint the pipe box on the test tube, thereby make the pipe box link together with the test tube under a plurality of fixing device's effect, annular protrusion can peg graft the opening part at the test tube this moment, thereby protect the test tube mouth, avoid when inserting the sampling tube, the damage takes place for the test tube, furthermore, through being equipped with the lifting device, when the sample, operating personnel can hold or pinch the sampling tube with one hand, and press the lifting device with the thumb of this hand, thereby make the straight-bar can move piston upward movement under the effect of lifting device, thereby can singlehanded realization to the absorption operation of sample solution, the convenience of sample has been improved.

Description

Quick sampling device is used in biological enzyme detection

Technical Field

The invention belongs to the technical field of sampling devices, and particularly relates to a rapid sampling device for biological enzyme detection.

Background

Biological enzymes are catalytic organisms produced by living cells, and are mostly proteins and few RNAs. The manufacturing and application fields of the bio-enzyme dye-sensitized cotton fabric are gradually expanded, the bio-enzyme dye-sensitized cotton fabric is applied to the textile industry more and more, and the bio-enzyme dye-sensitized cotton fabric is mainly used for desizing cotton fabrics and degumming silk in the past, and is widely applied to various fields of textile dyeing and finishing at present, so that the superiority of the bio-enzyme in the dyeing and finishing industry is reflected. The existing enzyme treatment process is generally recognized as a green production process meeting the environmental protection requirement, improves the wearability of textiles, and is beneficial to ecological environmental protection due to no toxicity, no harm, small dosage, biodegradable waste water and no pollution.

When the biological enzyme is detected, a biological enzyme sample needs to be sampled firstly, and when the biological enzyme sample is sampled, a sampling tube is generally inserted into a test tube firstly, and then the sample in the test tube is extracted into the sampling tube in an extraction mode. But because there is the difference in the diameter size of test tube, when using the sampler barrel to take a sample from the test tube of some minor diameters, have inconvenience during the grafting sampler barrel to can lead to the sampler barrel to collide with test tube mouth or test tube wall, and then can cause the damage of test tube, and when the extraction, generally need mutually supporting of two hands, thereby lead to not very convenient when the sample.

Therefore, it is necessary to develop a rapid sampling device for bio-enzyme detection to solve the above problems.

Disclosure of Invention

In view of the above problems, the present invention provides a rapid sampling device for bio-enzyme detection, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a biological enzyme detects uses quick sampling device, includes the sampler barrel, it has the straight-bar to slide to peg graft in the sampler barrel, the bottom fixedly connected with piston of straight-bar, run through on the lateral wall of sampler barrel and set up vertical through-hole, be provided with the lifting device that promotes the straight-bar in the through-hole, the sampler barrel has cup jointed the pipe box outward, run through on the pipe box lateral wall and set up a plurality of card holes, and a plurality of card holes are the annular and distribute, the downthehole fixing device who is provided with fixed test tube of card, fixedly connected with annular plate on the pipe box inner wall, the bottom position fixedly connected with annular of the inboard bead of annular plate is protruding, and the protruding slip of annular cup joints on the sampler barrel.

Further, the lifting device includes first gear and second gear, and the centre of a circle department of first gear and second gear is fixed to run through and pegs graft and has same pivot, the front and back end of pivot is rotated with the pore wall of side around the through-hole respectively perpendicularly and is connected, the diameter of first gear is less than the diameter of second gear, and the second gear is single gear, the position that the straight-bar is relative with the through-hole is seted up along vertical direction with through-hole width assorted bar groove, be provided with first tooth along vertical direction on the cell wall of one side that bar groove is relative with the second gear, and first tooth and second gear meshing, the bottom of first gear and second gear is provided with same fly leaf, side is connected with side opening wall sliding connection around the through-hole respectively around the front and back side of fly leaf, the position that fly leaf top and first gear are relative is provided with the second tooth, and the first gear meshing is kept away from the one side slope of sampling cylinder to the fly leaf is provided with the clamp plate, it is together articulated through torsion spring between the bottom of clamp plate and the lateral wall of sampling cylinder, the clamp plate is close to one side of seting up the recess around, install between the side of slide bar and the slide groove and one side of slide leaf and the fly leaf hinge.

Further, the fixing device comprises a flat rod, the flat rod vertically penetrates through and is inserted in the clamping hole, an inserting rod is inserted into one end, located in the pipe sleeve, of the flat rod in a sliding mode, one end, far away from the flat rod, of the inserting rod is vertically and fixedly connected with the annular protrusion, the top, located outside the pipe sleeve, of the flat rod is fixedly connected with a fixing block, a screw rod is inserted into the fixing block in a threaded mode vertically perpendicular to the direction of the pipe sleeve in a threaded mode, one end, close to the pipe sleeve, of the screw rod is rotatably connected with the outer wall of the pipe sleeve, a third gear is fixedly connected to the other end of the screw rod in a sleeved mode, the top of the third gear is provided with the same adjusting ring, the adjusting ring is rotatably sleeved on the pipe sleeve, a region, opposite to the bottom of the adjusting ring and the plurality of the third gears, is annularly provided with third teeth, the third teeth are meshed with the plurality of third gears, the bottom, of the flat rod, is fixedly connected with a spring piece, the bottom of the flat rod is located at one end in the pipe sleeve, a stop blocks are slidably mounted at the bottom of the flat rod, one side, of the stop block, the stop block is vertically and fixedly connected with a spring.

Furthermore, a plurality of magnetic blocks are fixedly connected to the inner wall of the annular protrusion, vertical sliding grooves are formed in the outer wall of the sampling cylinder at positions corresponding to the magnetic blocks, the bottom of each sliding groove is communicated with the bottom of the sampling cylinder, metal sheets matched with the sliding grooves in length are fixedly connected to the inner wall of each sliding groove, and the magnetic blocks are located in the sliding grooves.

Furthermore, the check block is divided into a vertical section and an inclined section from top to bottom, the bottom end of the inclined section inclines towards the direction far away from the sampling cylinder, and the projection length of the inclined section along the vertical direction is greater than the maximum movement distance of the flat rod along the horizontal direction.

Furthermore, the elastic sheet is sequentially divided into a clamping part and a guide part from top to bottom, the clamping part inclines towards the direction away from the sampling tube from top to bottom, and the guide part inclines towards the direction close to the sampling tube from top to bottom.

Furthermore, a silica gel gasket is fixedly connected to one side of the vertical section of the stop block, which is opposite to the elastic sheet clamping portion, and the bottom of the silica gel gasket is smoothly connected with the stop block or the elastic sheet.

Furthermore, the second teeth at the top of the movable plate can be completely separated from the first gear in a natural state, and the movable plate cannot be in contact with the straight rod.

Furthermore, a fixing sleeve is fixedly connected to the side wall of the sampling tube, and the fixing sleeve is symmetrical with respect to the position of the pressing plate.

The invention has the technical effects and advantages that:

1. before the sample, cup joint the pipe box on the test tube, thereby make the pipe box link together with the test tube under a plurality of fixing device's effect, annular protrusion can peg graft at the opening part of test tube this moment, thereby protect the test tube mouth, avoid when inserting the sampler barrel, the test tube takes place to damage, furthermore, through being equipped with the lifting device, when the sample, operating personnel can hold or pinch the sampler barrel with one hand, and press the lifting device with the thumb of this hand, thereby make the straight-bar can move the piston upward under the effect of lifting device, thereby can realize the absorption operation to sample solution by one hand, the convenience of sample has been improved;

2. according to the test tube fixing device, the fixing device is arranged, when the connection requirements of test tubes with different diameters are met, the adjusting ring can be rotated to drive the third gears in the plurality of fixing devices to synchronously rotate with the screw rod through the third teeth at the bottom of the adjusting ring, meanwhile, along with the rotation of the screw rod, the flat rod can drive the elastic sheets and the check blocks to move in the direction perpendicular to the annular protrusion under the combined action of the screw rod, the fixing blocks and the inserted rod, when the distance from the circle center of the tube sleeve to the center of the check blocks and the center of the elastic sheets is equal to the radius of the test tube, the adjustment of the adjusting ring is stopped, and the circle defined by the centers of the elastic sheets and the check blocks in the plurality of fixing devices is the opening size of the test tube, so that the universality of the test tube fixing device is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

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

FIG. 2 is a partial perspective sectional view of the withdrawal chimney according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;

FIG. 4 is a perspective sectional view of a pipe sleeve according to the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4 according to the present invention;

FIG. 6 is a schematic perspective view of the straight rod, the piston and a portion of the lifting device of the present invention;

FIG. 7 is an enlarged view of the portion C of FIG. 6 according to the present invention;

fig. 8 is a perspective view of the bottom of the adjusting ring in the present invention.

In the figure: 1. a sampling tube; 2. a straight rod; 3. a piston; 4. a lifting device; 41. a first gear; 42. a second gear; 43. a first tooth; 44. a movable plate; 45. a second tooth; 46. pressing a plate; 47. a slide bar; 5. pipe sleeve; 6. a fixing device; 60. leveling a rod; 61. inserting a rod; 62. a screw; 63. a third gear; 64. an adjusting ring; 65. a third tooth; 66. a spring plate; 67. a stopper; 68. a limiting rod; 69. a clamping spring; 7. an annular plate; 8. an annular projection; 9. a magnetic block; 10. a metal sheet; 11. a silica gel gasket; 12. and (4) fixing sleeves.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The invention provides a rapid sampling device for biological enzyme detection, which is shown in figures 1-8 and comprises a sampling cylinder 1, wherein a straight rod 2 is inserted in the sampling cylinder 1 in a sliding manner, the bottom of the straight rod 2 is fixedly connected with a piston 3, a vertical through hole penetrates through the side wall of the sampling cylinder 1, a lifting device 4 for lifting the straight rod 2 is arranged in the through hole, a pipe sleeve 5 is sleeved outside the sampling cylinder 1, a plurality of clamping holes are formed in the side wall of the pipe sleeve 5 in a penetrating manner and distributed in an annular manner, a fixing device 6 for fixing a test tube is arranged in each clamping hole, an annular plate 7 is fixedly connected to the inner wall of the pipe sleeve 5, an annular bulge 8 is fixedly connected to the bottom of an inner edge of the annular plate 7 at the position, the annular bulge 8 is sleeved on the sampling cylinder 1 in a sliding manner, a plurality of magnetic blocks 9 are fixedly connected to the inner wall of the annular bulge 8, a vertical sliding groove is formed in the outer wall of the sampling cylinder 1 at the position corresponding to the magnetic blocks 9, the bottom of the sliding groove is communicated with the bottom of the sampling cylinder 1, a metal sheet 10 matched with the length of the sliding groove is fixedly connected to the inner wall of the sliding groove, and the magnetic blocks 9 are positioned in the sliding groove;

when taking a sample, adjust a plurality of fixing device 6 according to the diameter of test tube earlier, thereby make a plurality of fixing device 6 can with the bore phase-match of test tube, then cup joint pipe box 5 on the test tube, thereby make pipe box 5 can link together with the test tube under a plurality of fixing device 6's effect, annular protrusion 8 can peg graft at the opening part of test tube this moment, thereby protect the test tube mouth, then align the spout on the sampling tube 1 and the magnetic path 9 on the annular protrusion 8 and insert in annular protrusion 8, in this process, because annular protrusion 8 can make the parallel insertion of sampling tube 1 in the test tube, thereby can avoid colliding between sampling tube 1 and the test tube wall, and then can avoid the test tube to be damaged by bumping;

in addition, because be equipped with the sheetmetal 10 in the spout, consequently at the in-process that sampler barrel 1 pegged graft, magnet 9 can adsorb together with sheetmetal 10, thereby avoid taking place the slippage between sampler barrel 1 and the annular arch 8, after the opening of sampler barrel 1 bottom was inserted the sample solution in the test tube, stop inserting sampler barrel 1, sampler barrel 1 can link together under the suction between sheetmetal 10 and magnet 9 and the fixed action of fixing device 6 to the test tube this moment, thereby can avoid when absorbing sample solution, sampler barrel 1 separates with sample solution, hold or pinch sampler barrel 1 with one hand at last, and press lifting device 4 with the thumb of this hand, thereby make straight-bar 2 can pull piston 3 upward movement under lifting device 4's effect, thereby can realize the absorption operation to sample solution by one hand, the convenience of sample has been improved.

As shown in fig. 2, 3, 6 and 7, the lifting device 4 includes a first gear 41 and a second gear 42, a same rotating shaft is fixedly inserted in the circle center of the first gear 41 and the second gear 42, the front end and the rear end of the rotating shaft are respectively connected with the hole walls of the front side and the rear side of the through hole in a perpendicular manner, the diameter of the first gear 41 is smaller than that of the second gear 42, the second gear 42 is a one-way gear, a strip-shaped groove with a width matched with that of the through hole is formed in the vertical direction at the position of the straight rod 2 opposite to the through hole, a first tooth 43 is formed in the vertical direction on the groove wall of the side of the strip-shaped groove opposite to the second gear 42, the first tooth 43 is engaged with the second gear 42, the bottom of the first gear 41 and the second gear 42 is provided with a same movable plate 44, the front side and the rear side of the movable plate 44 are respectively connected with the front side and rear side hole walls of the through hole in a sliding manner, a second tooth 45 is arranged at a position, opposite to the first gear 41, of the top of the movable plate 44, the second tooth 45 is meshed with the first gear 41, a pressing plate 46 is obliquely arranged on one side, away from the sampling cylinder 1, of the movable plate 44, the bottom of the pressing plate 46 is hinged with the side wall of the sampling cylinder 1 through a torsion spring, a groove is formed in one side, close to the movable plate 44, of the pressing plate 46, a sliding strip 47 is slidably arranged between the front side groove wall and the rear side groove wall of the groove, the sliding strip 47 is hinged with one side, away from the sampling cylinder 1, of the movable plate 44, the second tooth 45 at the top of the movable plate 44 can be completely separated from the first gear 41 in a natural state, the movable plate 44 cannot be contacted with the straight rod 2, a fixing sleeve 12 is fixedly connected to the side wall of the sampling cylinder 1, and the fixing sleeve 12 is symmetrical with respect to the position of the pressing plate 46;

when the sampling cylinder 1 is inserted into a test tube and the bottom of the sampling cylinder 1 is positioned in a sample solution, an operator can insert two or three of an index finger, a middle finger and a ring finger of one hand into the fixing sleeve 12, meanwhile, the operator presses the thumb of the hand on the pressing plate 46 in a reciprocating manner, along with the pressing of the pressing plate 46 by the operator, the top end of the pressing plate 46 can deflect towards the direction close to the sampling cylinder 1, in the process, along with the deflection of the pressing plate 46, the moving plate 44 can drive the second tooth 45 at the top of the pressing plate 46 to be meshed with the first gear 41 under the extrusion of the pressing plate 46, along with the continuous movement of the moving plate 44, the second tooth 45 can drive the first gear 41 to rotate, the sliding strip 47 can slide along the corresponding groove, along with the rotation of the first gear 41, the first gear 41 drives the second gear 42 to rotate through the rotating shaft, so that the straight rod 2 is pulled upwards through the action of the second gear 42 on the first tooth 43, and along with the upward movement of the piston 3 can move upwards along the inner wall of the sampling cylinder 1, so that the straight rod can be sucked into the sampling cylinder by the operator when the sampling cylinder 1, the sampling cylinder, the straight rod can be conveniently;

after the thumb is released, the pressing plate 46 is restored under the action of the torsion spring, and in the process that the pressing plate 46 is restored, the second tooth 45 can drive the first gear 41 to rotate in the direction, but because the second gear 42 is a one-way gear, the second gear 42 cannot rotate under the transmission of the rotating shaft, and after the pressing plate 46 is restored, the second tooth 45 can be separated from the first gear 41, so after the sampling of the sampling cylinder 1 is completed, when the straight rod 2 is pressed to push out the sample solution in the sampling cylinder 1, along with the downward movement of the straight rod 2, the straight rod 2 can drive the second gear 42 to rotate in the reverse direction through the first tooth 43, and the first gear 41 can idle under the transmission of the rotating shaft, so that the influence of the second tooth 45 is avoided.

As shown in fig. 1, 4, 5 and 8, the fixing device 6 includes a flat rod 60, the flat rod 60 vertically penetrates and is inserted in the fastening hole, an insertion rod 61 is slidably inserted in one end of the flat rod 60 located in the pipe sleeve 5, one end of the insertion rod 61 far away from the flat rod 60 is vertically and fixedly connected with the annular protrusion 8, a fixed block is fixedly connected to a top of the flat rod 60 located outside the pipe sleeve 5, the fixed block is vertically and threadedly inserted with a screw 62 along a direction vertical to the pipe sleeve 5, one end of the screw 62 close to the pipe sleeve 5 is rotatably connected with an outer wall of the pipe sleeve 5, a third gear 63 is fixedly sleeved on the other end of the screw 62, the top of a plurality of the third gears 63 is provided with a same adjusting ring 64, the adjusting ring 64 is rotatably sleeved on the pipe sleeve 5, and a region of the bottom of the adjusting ring 64 opposite to the plurality of the third gears 63 is annularly provided with a third tooth 65, the third teeth 65 are engaged with the plurality of third gears 63, the bottom of the flat bar 60 at one end in the pipe sleeve 5 is fixedly connected with a spring plate 66, the bottom of the flat bar 60 is slidably provided with a stop block 67, one side of the stop block 67 away from the spring plate 66 is vertically and fixedly connected with a limit rod 68, the limit rod 68 is slidably sleeved with a fixed plate, the fixed plate is vertically and fixedly connected with the bottom of the flat bar 60, a clamping spring 69 is sleeved on the part of the limit rod 68 between the fixed plate and the stop block 67, the stop block 67 is divided into a vertical section and an inclined section from top to bottom, the bottom end of the inclined section inclines towards the direction away from the sampling cylinder 1, the projection length of the inclined section along the vertical direction is larger than the maximum movement distance of the flat bar 60 along the horizontal direction, the spring plate 66 is sequentially divided into a clamping part and a guide part from top to bottom, the clamping part inclines towards the direction away from the sampling cylinder 1 from top to bottom, the guide part inclines from top to bottom towards the direction close to the sampling tube 1, the vertical section of the stop block 67 is fixedly connected with a silica gel gasket 11 at one side opposite to the clamping part of the elastic sheet 66, and the bottom of the silica gel gasket 11 is smoothly connected with the stop block 67 or the elastic sheet 66;

by arranging the fixing devices 6, before sampling, the diameter of the test tube opening is determined, then the adjusting ring 64 is rotated, along with the rotation of the adjusting ring 64, the adjusting ring 64 can drive the third gears 63 in the plurality of fixing devices 6 and the screw 62 to synchronously rotate through the third teeth 65 at the bottom of the adjusting ring 64, meanwhile, along with the rotation of the screw 62, the flat rod 60 can drive the elastic sheets 66 and the stoppers 67 to move in the direction perpendicular to the annular bulge 8 under the combined cooperation effect of the screw 62, the fixing blocks and the inserted rod 61, and when the distance from the center of the tube sleeve 5 to the centers of the stoppers 67 and the elastic sheets 66 is equal to the radius of the test tube, the adjustment of the adjusting ring 64 is stopped, and at the moment, the circle enclosed by the centers of the elastic sheets 66 and the stoppers 67 in the plurality of fixing devices 6 is the opening size of the test tube, so that the connection requirements of different diameters can be met by adjusting the distances from the centers of the plurality of the stoppers 67 and the centers of the elastic sheets 66 to the center of the tube sleeve 5, and the universality of the invention is improved;

then, the tube sleeve 5 is sleeved at the test tube from top to bottom, and in the process, along with the downward movement of the tube sleeve 5, when the tube opening is in contact with the inclined sections of the plurality of stoppers 67 and the guide parts of the plurality of elastic sheets 66, the test tube can be located at the center of the tube sleeve 5 under the combined action of the inclined sections of the plurality of stoppers 67 and the guide parts of the plurality of elastic sheets 66, and along with the continuous downward movement of the tube sleeve 5, when the inner wall and the outer wall of the test tube are in contact with the clamping parts of the elastic sheets 66 and the vertical sections of the stoppers 67, respectively, the elastic sheets 66 can deflect in a direction close to the center of the tube sleeve 5 under the extrusion of the test tube, and the stoppers 67 can compress the chucking spring 69 under the extrusion of the test tube and move in a direction away from the center of the tube sleeve 5, and along with the deformation of the elastic sheets 66 and the contraction of the chucking spring 69, the test tube can be clamped under the reaction force of the chucking spring 69 on the stoppers 67 and the reaction force of the elastic sheets 66 on the test tube, so as to realize the connection of the tube sleeve 5 and the test tube;

and after pipe box 5 finishes being connected with the test tube, the grafting that annular arch 8 then can be parallel is in test tube mouth inboard position to protect the test tube mouth, and in sampler barrel 1 through the inside in-process of annular arch 8 grafting to the test tube, annular arch 8 can keep keeping a certain distance between the outer wall of sampler barrel 1 and the inner wall of test tube throughout, thereby avoided in the sampling process, the test tube collides with sampler barrel 1, guarantees that the test tube is not damaged;

in addition, through be provided with silica gel gasket 11 on dog 67 and shell fragment 66, after the test tube is pressed from both sides tightly by dog 67 and shell fragment 66, silica gel gasket 11 can protect on the one hand the test tube not damaged, and on the other hand, silica gel gasket 11 can increase the frictional force between test tube and dog 67 and shell fragment 66 to guarantee the stability of being connected between pipe box 5 and the test tube.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a quick sampling device is used in biological enzyme detection, includes sampling tube (1), its characterized in that: sliding and inserting a straight rod (2) in the sampling tube (1), a piston (3) is fixedly connected to the bottom of the straight rod (2), a vertical through hole is formed in the side wall of the sampling tube (1) in a penetrating mode, a lifting device (4) for lifting the straight rod (2) is arranged in the through hole, a tube sleeve (5) is sleeved outside the sampling tube (1), a plurality of clamping holes are formed in the side wall of the tube sleeve (5) in a penetrating mode, the clamping holes are distributed in an annular mode, a fixing device (6) for fixing a test tube is arranged in each clamping hole, a ring plate (7) is fixedly connected to the inner wall of the tube sleeve (5), an annular protrusion (8) is fixedly connected to the bottom of the inner side edge of the ring plate (7), and the annular protrusion (8) is sleeved on the sampling tube (1) in a sliding mode.

2. The rapid sampling device for bio-enzyme assay as claimed in claim 1, wherein: the lifting device (4) comprises a first gear (41) and a second gear (42), the circle centers of the first gear (41) and the second gear (42) are fixedly penetrated and inserted to form a same rotating shaft, the front end and the rear end of the rotating shaft are respectively connected with the hole walls of the front side and the rear side of the through hole in a perpendicular rotating mode, the diameter of the first gear (41) is smaller than that of the second gear (42), the second gear (42) is a one-way gear, a bar-shaped groove matched with the width of the through hole is formed in the vertical direction in the position, corresponding to the through hole, of the straight rod (2), a first tooth (43) is arranged on the groove wall of the side, corresponding to the through hole, of the bar-shaped groove (42) in the vertical direction, the first tooth (43) is meshed with the second gear (42), the bottom of the first gear (41) and the second gear (42) is provided with a same movable plate (44), the front side and the rear side of the movable plate (44) are respectively connected with the front side and rear side hole wall of the through hole in a sliding mode, the position, the top of the movable plate (44) is provided with the first gear (41) and the side wall of the movable plate (46) is hinged to the side wall of the sampling cylinder (46), and the side wall of the movable plate (46) is provided with a second tooth (46) and a torsion spring (46), a sliding strip (47) is arranged between the front side groove wall and the rear side groove wall of the groove in a sliding manner, and the sliding strip (47) is hinged with one side of the movable plate (44) far away from the sampling tube (1).

3. The rapid sampling device for bio-enzyme assay as claimed in claim 1, wherein: the fixing device (6) comprises a flat rod (60), the flat rod (60) vertically penetrates through and is inserted into the clamping hole, an inserting rod (61) is inserted into one end, located in the pipe sleeve (5), of the flat rod (60) in a sliding mode, one end, far away from the flat rod (60), of the inserting rod (61) is vertically and fixedly connected with the annular bulge (8), the top, located outside the pipe sleeve (5), of the flat rod (60) is fixedly connected with a fixing block, the fixing block is vertically and spirally inserted with a screw rod (62) in a direction perpendicular to the direction of the pipe sleeve (5), one end, close to the pipe sleeve (5), of the screw rod (62) is rotatably connected with the outer wall of the pipe sleeve (5), the other end of the screw rod (62) is fixedly connected with a third gear (63), the top of the third gear (63) is provided with the same adjusting ring (64), the adjusting ring (64) is rotatably sleeved on the pipe sleeve (5), a region, opposite to the third gear (63) in the bottom of the adjusting ring (64) is provided with a third tooth (65), the third tooth (65) is meshed with the fixing ring, one end of the third tooth (65) is fixedly connected with the third gear (63), one side of the flat rod (60), one end, the elastic piece (67) is fixedly connected with the flat rod (67), and the elastic piece (67) is located in the limiting block (67), and the flat rod (67) is vertically and is vertically connected with the flat rod (60), the fixing plate is sleeved on the limiting rod (68) in a sliding mode, the fixing plate is vertically and fixedly connected with the bottom of the flat rod (60), and a clamping spring (69) is sleeved on the part, located between the fixing plate and the stop block (67), of the limiting rod (68).

4. The rapid sampling device for bio-enzyme assay as claimed in claim 1, wherein: fixedly connected with a plurality of magnetic blocks (9) on the inner wall of annular arch (8), magnetic block (9) correspond the position seted up vertical spout on sampler barrel (1) outer wall, and the bottom of spout and the bottom intercommunication of sampler barrel (1), fixedly connected with and spout length assorted sheetmetal (10) on the inner wall of spout, and magnetic block (9) are located the spout.

5. The rapid sampling device for bio-enzyme assay as claimed in claim 3, wherein: the stop block (67) is divided into a vertical section and an inclined section from top to bottom, the bottom end of the inclined section inclines towards the direction far away from the sampling tube (1), and the projection length of the inclined section along the vertical direction is greater than the maximum movement distance of the flat rod (60) along the horizontal direction.

6. The rapid sampling device for bio-enzyme assay according to claim 5, wherein: the elastic sheet (66) is sequentially divided into a clamping part and a guide part from top to bottom, the clamping part inclines towards the direction far away from the sampling tube (1) from top to bottom, and the guide part inclines towards the direction close to the sampling tube (1) from top to bottom.

7. The rapid sampling device for bio-enzyme assay as claimed in claim 6, wherein: the side, opposite to the clamping part of the elastic sheet (66), of the vertical section of the stop block (67) is fixedly connected with a silica gel gasket (11), and the bottom of the silica gel gasket (11) is smoothly connected with the stop block (67) or the elastic sheet (66).

8. The rapid sampling device for bio-enzyme assay according to claim 2, wherein: the second teeth (45) on the top of the movable plate (44) can be completely separated from the first gear (41) in a natural state, and the movable plate (44) cannot be in contact with the straight rod (2).

9. The rapid sampling device for bio-enzyme assay according to claim 2, wherein: the side wall of the sampling cylinder (1) is fixedly connected with a fixing sleeve (12), and the fixing sleeve (12) is symmetrical about the position of the pressing plate (46).