CN115993284A - Nitrogen blowing instrument - Google Patents

Nitrogen blowing instrument Download PDF

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Publication number
CN115993284A
CN115993284A CN202310295387.7A CN202310295387A CN115993284A CN 115993284 A CN115993284 A CN 115993284A CN 202310295387 A CN202310295387 A CN 202310295387A CN 115993284 A CN115993284 A CN 115993284A
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China
Prior art keywords
ring
groove
blowing
bearing seat
grooves
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Granted
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CN202310295387.7A
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Chinese (zh)
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CN115993284B (en
Inventor
杨延康
伏华
刘应琪
张敏
靳泽荣
谢凤梅
王朝辉
朱俊松
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Chengdu Sns Biotechnology Co ltd
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Chengdu Sns Biotechnology Co ltd
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Priority to CN202310295387.7A priority Critical patent/CN115993284B/en
Publication of CN115993284A publication Critical patent/CN115993284A/en
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Publication of CN115993284B publication Critical patent/CN115993284B/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

A nitrogen blowing instrument comprising: the device comprises a supporting seat, a bearing mechanism, a positioning mechanism and an air blowing mechanism. The bearing mechanism comprises a bearing seat rotatably arranged on the supporting seat, two concentric space rings are arranged on the bearing seat, a heating module is filled between the two space rings, two concentric groove groups are arranged on the bearing seat, each groove group comprises a plurality of grooves which are arranged along the circumferential direction of the bearing seat, the grooves are positioned between the two space rings, and the test tube is positioned in the grooves; the positioning mechanism comprises two positioning assemblies, and the positioning assemblies comprise a plurality of positioning modules which are arranged along the circumferential direction and are used for positioning the test tube; the blowing mechanism comprises a supporting plate which is arranged above the bearing seat and moves along the vertical direction, and a first blowing assembly and a second blowing assembly are arranged on the supporting plate and each of the first blowing assembly and the second blowing assembly comprises a plurality of air needles which are arranged along the circumferential direction of the supporting plate and used for blowing air into the test tube. Can adapt to not unidimensional test tube, the position of adjustment air blowing needle makes the position of blowing all the time towards the center of test tube, guarantees the effect of volatilizing of reagent.

Description

Nitrogen blowing instrument
Technical Field
The invention relates to the technical field of chemical analysis instruments, in particular to a nitrogen blowing instrument.
Background
The nitrogen blowing instrument is mainly used for purifying and preparing analysis samples such as chromatography, mass spectrum and the like, is used for accelerating volatilization of solvents such as water, toluene, methanol, acetone and the like, is widely applied to the fields of food safety, medicine, pesticide residue detection, clinical drug generation and the like, and is used for blowing nitrogen into the surface of a heated sample to concentrate the sample, and has the characteristics of time saving, convenient operation, easy control and the like, and can quickly obtain expected results. The prior nitrogen blowing instrument mainly has two shapes, one of which is that holes for installing test tubes are arranged according to a rectangle, a large number of test tubes can be placed by the structure to perform concentration operation at the same time, but the nitrogen blowing instrument cannot adapt to test tubes with different sizes, has great limitation, and the other of which is that holes for installing test tubes are arranged according to the circumference, so that the nitrogen blowing instrument can adapt to test tubes with different sizes only in a small part, too many test tubes cannot be placed each time, and when the test tubes with different sizes are placed, the position of a blowing needle relative to the center of the test tubes can be changed, and nitrogen blown by the blowing needle faces the inner wall of the test tubes, thereby being unfavorable for quick volatilization of solvents.
Disclosure of Invention
To the not enough of above-mentioned relevant prior art, this application provides a nitrogen blows appearance, can adapt to not unidimensional test tube to can adjust the position of blowing the needle, make the position of blowing face towards the center of test tube all the time, guarantee the effect of volatilizing of reagent, have stronger practicality.
In order to achieve the above object, the present invention adopts the following technique:
a nitrogen blowing instrument comprising: the device comprises a supporting seat, a bearing mechanism, a positioning mechanism and an air blowing mechanism.
The bearing mechanism comprises a bearing seat rotatably mounted on the supporting seat, two concentric space rings are arranged on the top surface of the bearing seat, a heating module is filled between the two space rings, two concentric groove groups are arranged on the bearing seat, each groove group comprises a plurality of grooves uniformly distributed along the circumferential direction of the bearing seat, the grooves are positioned between the two space rings, a limiting plate is arranged on the top surface of the space ring, two rings of through grooves are also arranged on the surface of the limiting plate, the projection of the through grooves in the vertical direction coincides with the grooves, and when the bearing mechanism is used, a test tube is positioned in the through grooves, and the bottom of the test tube is positioned in the grooves; the positioning mechanism comprises two positioning assemblies, each positioning assembly comprises a plurality of positioning modules which are uniformly arranged along the circumferential direction at intervals, and each positioning module comprises a clamping plate which is arranged in the groove and moves, and is used for positioning the test tube; the blowing mechanism comprises a supporting plate which is arranged above the bearing seat and moves along the vertical direction, a first blowing component and a second blowing component which is arranged outside the first blowing component are arranged on the supporting plate, the first blowing component and the second blowing component comprise a plurality of air needles which are uniformly distributed along the circumferential direction of the supporting plate at intervals, and the air needles move along the radial direction of the supporting plate and are used for blowing air into a test tube.
Further, the groove is in a cam shape, the small end of the groove positioned at the outer side and the large end of the groove positioned at the inner side face the circle center of the bearing seat, a limit frame is arranged on the periphery of the top of the groove, and the top surface of the limit frame is abutted to the limit plate.
Further, be equipped with the spout in the recess, the cardboard wears to locate in the spout, and the cardboard lower extreme cover is located on the slide bar, and the slide bar both ends are connected on the flange, and the flange is installed in bearing seat bottom surface, still overlaps on the slide bar and is equipped with the spring, and the spring is respectively support to the cardboard and is close to the flange of recess big end, and is in compression state all the time.
Further, bear seat top surface center and be equipped with the pole setting, the limiting plate is passed to the pole setting, and internally mounted has the lead screw of vertical arrangement, and the cover is equipped with the go-between on the lead screw, and backup pad detachably installs on the go-between, and first motor is connected to lead screw one end, and first motor installs in bearing seat bottom.
Further, still be equipped with the holding ring in the pole setting, and holding ring and lifting ring top surface all are equipped with the bayonet lock, and the bottom surface of backup pad and limiting plate all is equipped with the draw-in groove, and the bayonet lock cooperates in the draw-in groove.
Further, the upper end of the air needle is connected to the connector, the connector is mounted on the movable block, the upper end of the connector is connected with the air source through a pipeline, a plurality of guide grooves are formed in the surface of the support plate, the guide grooves are distributed into inner and outer rings, the centers of the support plate are used as circle centers, the guide grooves located in the same ring are evenly distributed at intervals, the center line of the length direction of the guide grooves is located on the radius of the support plate, and the movable block is matched in the guide grooves.
Further, the first air blowing assembly further comprises a rotating disc arranged at the center of the supporting plate, a plurality of first connecting rods with uniform intervals are connected to the periphery side of the rotating disc in a rotating mode, and one end of each first connecting rod is connected with a moving block located in the inner ring in a rotating mode.
Further, the rotary disc top surface is equipped with the fluted disc, fluted disc and first gear cooperation, and first gear cover is located in the first pivot, and first pivot wears to locate on the link, and second motor is connected to first pivot one end, and the second motor is installed on the link, and the link is installed in the backup pad.
Further, the second subassembly of blowing still includes first ring gear, the backup pad top surface is equipped with the spacing ring, first ring gear bottom surface is equipped with annular spacing groove, the spacing ring cooperation is in the spacing groove, first ring gear inboard is connected with a plurality of second connecting rods of even intervals along the circumferencial direction rotation, the movable block that is located the outer lane is connected in second connecting rod one end rotation, first ring gear and second gear cooperation, the second gear cover is located in the second pivot, the second pivot wears to locate on the link to connect the third motor, the third motor is installed on the link.
Further, the bottom surface of the bearing seat is provided with a ring table, the bottom surface of the supporting seat is provided with a ring groove, the ring table is matched in the ring groove, the periphery of the ring table is provided with a second gear ring, the second gear ring is matched with a third gear, the third gear is sleeved on the transmission shaft, and the transmission shaft is rotatably arranged on the supporting seat.
The invention has the beneficial effects that:
the grooves for placing the test tubes are arranged in a cam shape so as to adapt to the test tubes with different sizes, and the grooves are arranged in two circles, so that more test tubes can be placed, and more reagents can be concentrated at the same time; the supporting plate and the limiting plate are detachably connected with the equipment body, so that when parts are damaged, the heating module and other parts are convenient to replace; and each part is limited in the rotation process, so that the stability in rotation is ensured; and can control simultaneously and remove the piece and remove along the radial direction synchronous of backup pad, make the gas needle can be adjusted to being located directly over the test tube center simultaneously, guarantee the effect that the gas needle was blown to the test tube in.
Drawings
The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the invention.
Fig. 1 is a schematic perspective view of an overall structure according to an embodiment of the present application.
Fig. 2 is a schematic perspective view of a bearing mechanism according to an embodiment of the present application.
Fig. 3 is a perspective view of a bottom surface of a carrier according to an embodiment of the present application.
Fig. 4 is a schematic perspective view of a cross-sectional structure of a bearing mechanism according to an embodiment of the present application.
Fig. 5 is a schematic perspective view of an air blowing mechanism according to an embodiment of the present application.
Fig. 6 is a schematic perspective view of a cross-sectional structure of a blowing mechanism according to an embodiment of the present application.
Fig. 7 is an enlarged schematic view at a of fig. 6.
Fig. 8 is a schematic perspective view of a first blowing assembly according to an embodiment of the present application.
Fig. 9 is a schematic perspective view of a second air blowing assembly according to an embodiment of the present application.
Fig. 10 is an enlarged schematic view at B of fig. 4.
Reference numerals illustrate: 100-supporting seat, 200-bearing mechanism, 300-positioning mechanism, 400-blowing mechanism, 101-ring groove, 201-bearing seat, 202-groove, 203-limiting plate, 204-through groove, 205-space ring, 206-slide groove, 207-convex plate, 208-upright, 209-screw rod, 210-lifting ring, 211-first motor, 212-ring table, 213-second gear ring, 214-third gear, 215-transmission shaft, 216-supporting ring, 217-bayonet, 218-bayonet, 219-limiting frame, 220-guide rod, 301-clamping plate, 302-slide bar, 303-spring, 401-supporting plate, 402-air needle, 403-connector, 404-moving block, 405-guide groove, 406-rotating disk, 407-first connecting rod, 408-fluted disk, 409-first gear, 410-first rotating shaft, 411-connecting frame, 412-second motor, 413-first gear ring, 414-limiting ring, 415-limiting groove, 416-second connecting rod, 417-second gear, 418-second motor, 419-third rotating shaft, 420-through hole.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the described embodiments of the present invention are some, but not all embodiments of the present invention.
As shown in fig. 1 to 10, an embodiment of the present application provides a nitrogen blower, including: the device comprises a supporting seat 100, a bearing mechanism 200, a positioning mechanism 300 and an air blowing mechanism 400.
The bearing mechanism 200 comprises a bearing seat 201 rotatably arranged on the supporting seat 100, two concentric space rings 205 are arranged on the top surface of the bearing seat 201, two concentric groove groups are arranged on the bearing seat 201, each groove group comprises a plurality of grooves 202 uniformly distributed along the circumferential direction of the bearing seat 201, the grooves 202 are positioned between the two space rings 205, a limiting plate 203 is arranged on the top surface of each space ring 205, two circles of through grooves 204 are also arranged on the surface of each limiting plate 203, the projection of each through groove 204 in the vertical direction coincides with the corresponding groove 202, when the test tube is applied, the test tube is positioned in each through groove 204, the edge of each through groove 204 supports the upper part of the test tube, the test tube is prevented from tilting, the bottom of the test tube is positioned in each groove 202, and a heating module is filled between the two space rings 205, so that reagents in the test tube are heated, and the reagents are quickly evaporated; the positioning mechanism 300 comprises two positioning assemblies, wherein each positioning assembly comprises a plurality of positioning modules which are uniformly arranged along the circumferential direction at intervals, and each positioning module comprises a clamping plate 301 which is arranged in the groove 202 and moves, and is used for positioning the test tube; the blowing mechanism 400 comprises a supporting plate 401 arranged above the bearing seat 201 and moving in the vertical direction, a first blowing component and a second blowing component positioned outside the first blowing component are arranged on the supporting plate 401, the first blowing component and the second blowing component comprise a plurality of air needles 402 uniformly distributed along the circumferential direction of the supporting plate 401 at intervals and used for blowing air into a test tube, and the air needles 402 move along the radial direction of the supporting plate 401, so that the air needles 402 can be always positioned right above the center of the test tube.
Specifically, as shown in fig. 1 and 2, the shape of the groove 202 is in a cam shape, when a test tube is placed in the groove 202, the outer wall of the test tube is abutted to the inner wall of the small end of the groove 202, so that test tubes with different sizes are adapted, the small end of the groove 202 located on the outer side and the large end of the groove 202 located on the inner side face the circle center of the bearing seat 201, the positioning mechanism 300 is conveniently arranged, the structure is more compact, a limit frame 219 is further arranged on the peripheral side of the top of the groove 202, the outer wall of the test tube is supported, and the top surface of the limit frame 219 is abutted to the limit plate 203, so that a heating module in the spacer 205 is sealed.
Specifically, as shown in fig. 1-4, a chute 206 is disposed in the groove 202, a clamping plate 301 is inserted into the chute 206, the lower end of the clamping plate 301 is sleeved on a slide bar 302, two ends of the slide bar 302 are connected to a convex plate 207, the convex plate 207 is mounted on the bottom surface of the bearing seat 201, a spring 303 is further sleeved on the slide bar 302, the spring 303 is respectively abutted to the clamping plate 301 and the convex plate 207 near the large end of the groove 202, and is always in a compressed state, and under the compression of the spring 303, the clamping plate 301 always has a trend of moving towards the small end of the groove 202, so that a test tube is compressed, and the test tube is prevented from shaking.
Specifically, as shown in fig. 1-4, a vertical rod 208 is disposed in the center of the top surface of the bearing seat 201, the vertical rod 208 passes through the limiting plate 203, a vertically arranged screw rod 209 is mounted in the inside, a lifting ring 210 is sleeved on the screw rod 209, a supporting plate 401 is detachably mounted on the lifting ring 210, one end of the screw rod 209 is connected with a first motor 211, the first motor 211 is mounted at the bottom of the bearing seat 201, the screw rod 209 rotates under the driving of the first motor 211, so that the lifting ring 210 moves up and down, and the supporting plate 401 is also convenient to replace after damaged.
Specifically, as shown in fig. 1, 2, 4 and 7, the upright 208 is further provided with a supporting ring 216, the top surfaces of the supporting ring 216 and the lifting ring 210 are respectively provided with a clamping pin 217, the bottom surfaces of the supporting plate 401 and the limiting plate 203 are respectively provided with a clamping groove 218, the clamping pins 217 are matched in the clamping grooves 218, the supporting ring 216 supports the limiting plate 203, and meanwhile, the limiting plate 203 can be limited, so that the projection of the through groove 204 and the groove 202 in the vertical direction always coincide, and meanwhile, when the heating module is damaged, the heating module is convenient to replace, and only the limiting plate 203 needs to be lifted.
Specifically, as shown in fig. 1, fig. 2, fig. 5 and fig. 6, the upper end of the air needle 402 is connected to the connector 403, the connector 403 is mounted on the moving block 404, the upper end of the connector 403 is connected to the air source through a pipeline, when the air source is started, the air needle 402 blows air outwards, a plurality of guide grooves 405 are arranged on the surface of the support plate 401, the guide grooves 405 are distributed into two circles inside and outside, the centers of the support plate 401 are used as circle centers to adapt to the distribution of the grooves 202, the guide grooves 405 located in the same circle are uniformly distributed at intervals, the center line of the guide grooves 405 in the length direction is located on the radius of the support plate 401, the moving block 404 is matched in the guide grooves 405, and the moving block 404 moves along the length direction of the guide grooves 405, so that the position of the air needle 402 is adjusted, and the air needle 402 can be located right above the center of the test tube to ensure the blowing effect.
Specifically, as shown in fig. 5-8, the first air blowing assembly further includes a rotating disc 406 disposed at the center of the support plate 401, a plurality of first links 407 with uniform intervals are rotationally connected to the peripheral side of the rotating disc 406, one end of the first link 407 is rotationally connected to a moving block 404 disposed on the inner ring, and the rotating disc 406 rotates to pull the first links 407 to move together, so that the position of the air needle 402 of the inner ring is adjusted, and the air needle 402 disposed on the inner ring moves synchronously, which is more convenient and faster.
Specifically, as shown in fig. 5-8, for convenience in controlling the rotating disc 406, a fluted disc 408 is disposed on the top surface of the rotating disc 406, the fluted disc 408 is matched with a first gear 409, the first gear 409 is sleeved on a first rotating shaft 410, the first rotating shaft 410 is arranged on a connecting frame 411 in a penetrating manner, one end of the first rotating shaft 410 is connected with a second motor 412, the first rotating shaft 410 is driven by the second motor 412 to rotate so as to drive the first gear 409 to rotate, thereby the fluted disc 408 rotates, a moving block 404 at one end of the first connecting rod 407 moves by the same distance at the same time, the air needle 402 of the inner ring is simultaneously adjusted to the upper center of the test tube, the second motor 412 is mounted on the connecting frame 411, and the connecting frame 411 is mounted on the supporting plate 401.
Specifically, as shown in fig. 1, 4, 7 and 8, the center of the connecting frame 411, the center of the supporting plate 401 and the center of the rotating disc 406 are all provided with through holes 420, so that when the supporting plate 401 descends, the air needle 402 can pass through the upright 208 to enter the test tube smoothly.
Specifically, as shown in fig. 1, fig. 5, fig. 6, and fig. 9, the second air blowing assembly further includes a first gear ring 413, a limiting ring 414 is disposed on the top surface of the support plate 401, an annular limiting groove 415 is disposed on the bottom surface of the first gear ring 413, the limiting ring 414 is matched in the limiting groove 415, when the first gear ring 413 rotates, the first gear ring 413 is enabled to rotate more stably, a plurality of second connecting rods 416 with uniform intervals are rotationally connected to the inner side of the first gear ring 413 along the circumferential direction, one end of each second connecting rod 416 is rotationally connected to a moving block 404 located on the outer ring, the first gear ring 413 is matched with the second gear 417, the second gear 417 is sleeved on the second rotating shaft 418, the second rotating shaft 418 is arranged on the connecting frame 411 in a penetrating manner, and is connected to a third motor 419, the third motor 419 is mounted on the connecting frame 411, the third motor 419 is used as a driving source to gradually drive the first gear ring 413 to rotate, and the second connecting rods 416 are driven to move along the guiding grooves 405 when the first gear ring 413 rotates.
Specifically, as shown in fig. 5-7 and 9, an annular limiting groove 415 is also formed on the bottom surface of the rotating disc 406, and a limiting ring 414 is also formed at the center of the top surface of the supporting plate 401 to provide a limiting effect on the rotating disc 406 when it rotates, so as to ensure stable rotation of the rotating disc 406.
Specifically, as shown in fig. 1-4 and 10, a ring table 212 is provided on the bottom surface of the bearing seat 201, a ring groove 101 is provided on the bottom surface of the supporting seat 100, the ring table 212 is matched in the ring groove 101, when the bearing seat 201 rotates, the ring table 212 is limited, a second gear ring 213 is provided on the periphery of the ring table 212, the second gear ring 213 is matched with a third gear 214, the third gear 214 is sleeved on a transmission shaft 215, the transmission shaft 215 is rotatably mounted on the supporting seat 100, and when a test tube is placed in a groove 202 farther from a worker, the transmission shaft 215 is rotated more conveniently.
Specifically, as shown in fig. 1, a plurality of guide rods 220 are further disposed on the bearing seat 201, and the support plate 401 is inserted through the guide rods 220, so that the support plate 401 is limited when moving up and down, and is kept stable when moving.
The detailed operation steps for concentrating the reagent by using the device are as follows:
the clamping plate 301 is pulled to move from the small end to the large end of the groove 202, the spring 303 is further compressed, then the test tube is placed in the groove 202 from the limiting plate 203, the clamping plate 301 is loosened, the test tube can be clamped in the groove 202, the transmission shaft 215 can be rotated to enable the third gear 214 to rotate in the process of placing the test tube, the bearing seat 201 is rotated under the cooperation of the second gear ring 213, the test tube is conveniently placed in the groove 202 which is farther from a worker, then the position of the air needle 402 is adjusted according to the position of the test tube, the second motor 412 and the third motor 419 are started, the second gear 417 and the first gear 409 are rotated, the gear ring 413 and the fluted disc 408 are rotated, the gear ring 413 is rotated while rotating, the second connecting rod 416 is pulled, the fluted disc 408 drives the first connecting rod 407 to move, so that the moving block 404 of the inner ring and the outer ring is driven to move in the guide groove 405, until the air needle 402 is positioned above the center of the test tube, at the moment, the first motor 211 is started, the screw 209 is rotated, the lifting ring 210 is moved downwards until the air needle 402 enters the test tube and is positioned at a preset height from the test tube, and the reagent is positioned between the two predetermined height circles, and the reagent can be heated, and the reagent can be blown to the test tube can be heated by the module.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. A nitrogen blowing instrument, comprising:
a support base (100);
the bearing mechanism (200) comprises a bearing seat (201) rotatably mounted on the supporting seat (100), two concentric space rings (205) are arranged on the top surface of the bearing seat (201), a heating module is filled between the two space rings (205), two concentric groove groups are arranged on the bearing seat (201), each groove group comprises a plurality of grooves (202) uniformly distributed along the circumferential direction of the bearing seat (201), the grooves (202) are located between the two space rings (205), a limiting plate (203) is arranged on the top surface of the space rings (205), two circles of through grooves (204) are also formed in the surface of the limiting plate (203), and when the bearing mechanism is applied, test tubes are located in the through grooves (204), and the bottoms of the test tubes are located in the grooves (202).
The positioning mechanism (300) comprises two positioning assemblies, wherein the positioning assemblies comprise a plurality of positioning modules which are uniformly arranged along the circumferential direction at intervals, and the positioning modules comprise clamping plates (301) which are movably arranged in the grooves (202) and are used for positioning test tubes;
the blowing mechanism (400) comprises a supporting plate (401) which is arranged above the bearing seat (201) and moves along the vertical direction, a first blowing component and a second blowing component which is arranged outside the first blowing component are arranged on the supporting plate (401), the first blowing component and the second blowing component comprise a plurality of air needles (402) which are uniformly arranged along the circumferential direction of the supporting plate (401) at intervals, and the air needles (402) are arranged along the radial direction of the supporting plate (401) in a moving mode and are used for blowing air into a test tube.
2. The nitrogen blowing instrument according to claim 1, wherein the groove (202) is cam-shaped, the small end of the groove (202) located on the outer side and the large end of the groove (202) located on the inner side face the circle center of the bearing seat (201), a limit frame (219) is arranged on the periphery side of the top of the groove (202), and the top surface of the limit frame (219) is abutted to the limit plate (203).
3. The nitrogen blowing instrument according to claim 2, wherein a chute (206) is arranged in the groove (202), the clamping plate (301) is arranged in the chute (206) in a penetrating manner, the lower end of the clamping plate (301) is sleeved on the sliding rod (302), two ends of the sliding rod (302) are connected to the convex plates (207), the convex plates (207) are arranged on the bottom surface of the bearing seat (201), a spring (303) is further sleeved on the sliding rod (302), and the spring (303) is respectively abutted to the clamping plate (301) and the convex plates (207) close to the large end of the groove (202) and is always in a compressed state.
4. The nitrogen blowing instrument according to claim 1, wherein a vertical rod (208) is arranged in the center of the top surface of the bearing seat (201), the vertical rod (208) penetrates through the limiting plate (203), a screw rod (209) which is vertically arranged is arranged in the vertical rod, a lifting ring (210) is sleeved on the screw rod (209), the supporting plate (401) is detachably arranged on the lifting ring (210), one end of the screw rod (209) is connected with a first motor (211), and the first motor (211) is arranged at the bottom of the bearing seat (201).
5. The nitrogen blowing instrument according to claim 4, wherein the upright (208) is further provided with a supporting ring (216), the top surfaces of the supporting ring (216) and the lifting ring (210) are respectively provided with a clamping pin (217), the bottom surfaces of the supporting plate (401) and the limiting plate (203) are respectively provided with a clamping groove (218), and the clamping pins (217) are matched in the clamping grooves (218).
6. The nitrogen blowing instrument according to claim 1, wherein the upper end of the air needle (402) is connected to a joint (403), the joint (403) is mounted on a moving block (404), the upper end of the joint (403) is connected to an air source through a pipeline, a plurality of guide grooves (405) are formed in the surface of the support plate (401), the guide grooves (405) are distributed into inner and outer circles, the guide grooves (405) are uniformly arranged at intervals between the guide grooves (405) located in the same circle by taking the center of the support plate (401) as the center, the center line of the guide grooves (405) in the length direction is located on the radius of the support plate (401), and the moving block (404) is matched in the guide grooves (405).
7. The nitrogen blowing instrument according to claim 6, wherein the first blowing assembly further comprises a rotating disc (406) arranged at the center of the supporting plate (401), a plurality of first connecting rods (407) with uniform intervals are rotatably connected to the periphery of the rotating disc (406), and one end of each first connecting rod (407) is rotatably connected to the moving block (404) located at the inner ring.
8. The nitrogen blowing instrument according to claim 7, wherein a fluted disc (408) is arranged on the top surface of the rotating disc (406), the fluted disc (408) is matched with a first gear (409), the first gear (409) is sleeved on a first rotating shaft (410), the first rotating shaft (410) is arranged on a connecting frame (411) in a penetrating mode, one end of the first rotating shaft (410) is connected with a second motor (412), the second motor (412) is arranged on the connecting frame (411), and the connecting frame (411) is arranged on the supporting plate (401).
9. The nitrogen blowing instrument according to claim 8, wherein the second blowing assembly further comprises a first gear ring (413), a limiting ring (414) is arranged on the top surface of the supporting plate (401), an annular limiting groove (415) is arranged on the bottom surface of the first gear ring (413), the limiting ring (414) is matched in the limiting groove (415), a plurality of second connecting rods (416) with uniform intervals are rotatably connected to the inner side of the first gear ring (413) along the circumferential direction, one end of each second connecting rod (416) is rotatably connected with the moving block (404) located on the outer ring, the first gear ring (413) is matched with a second gear (417), the second gear (417) is sleeved on a second rotating shaft (418), the second rotating shaft (418) is arranged on the connecting frame (411) in a penetrating mode and is connected with a third motor (419), and the third motor (419) is installed on the connecting frame (411).
10. The nitrogen blowing instrument according to claim 1, wherein a ring table (212) is arranged on the bottom surface of the bearing seat (201), an annular groove (101) is arranged on the bottom surface of the supporting seat (100), the ring table (212) is matched in the annular groove (101), a second gear ring (213) is arranged on the periphery of the ring table (212), the second gear ring (213) is matched with a third gear (214), the third gear (214) is sleeved on a transmission shaft (215), and the transmission shaft (215) is rotatably installed on the supporting seat (100).
CN202310295387.7A 2023-03-24 2023-03-24 Nitrogen blowing instrument Active CN115993284B (en)

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Application Number Priority Date Filing Date Title
CN202310295387.7A CN115993284B (en) 2023-03-24 2023-03-24 Nitrogen blowing instrument

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Application Number Priority Date Filing Date Title
CN202310295387.7A CN115993284B (en) 2023-03-24 2023-03-24 Nitrogen blowing instrument

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CN115993284A true CN115993284A (en) 2023-04-21
CN115993284B CN115993284B (en) 2023-05-30

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Publication number Priority date Publication date Assignee Title
CN117448122A (en) * 2023-12-19 2024-01-26 成都博奥独立医学实验室有限公司 Detection sample extraction device
CN117448122B (en) * 2023-12-19 2024-03-15 成都博奥独立医学实验室有限公司 Detection sample extraction device

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