CN112284825A - Volatile substance sealing and sampling device capable of being used independently - Google Patents
Volatile substance sealing and sampling device capable of being used independently Download PDFInfo
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- CN112284825A CN112284825A CN202011120338.2A CN202011120338A CN112284825A CN 112284825 A CN112284825 A CN 112284825A CN 202011120338 A CN202011120338 A CN 202011120338A CN 112284825 A CN112284825 A CN 112284825A
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- rotary rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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- Hydrology & Water Resources (AREA)
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Abstract
The invention provides a volatile substance sealed sampling device capable of being independently used, which comprises: the small-volume injector, the large-volume injector and the communication pipeline are arranged in the injector; a small volume syringe comprising: the buffer container comprises a tip pipe, a first opening and closing mechanism, a buffer container, a piston, a push pipe, an end head and a second opening and closing mechanism, wherein the first opening and closing mechanism is installed at the joint of the tip pipe and the buffer container; the tip of the large-volume syringe is communicated with the end head communicating channel through a communicating pipeline. But the sealed sampling equipment of independent use volatile substance solves among the prior art can not both reduce the liquid frequency of getting from in the storage bottle, realizes the problem of accurate quantitative injection a small amount of volatile substance again.
Description
Technical Field
The invention relates to equipment for producing biological products, in particular to volatile substance sealed sampling equipment capable of being independently used.
Background
The volatile material is typically contained in a storage bottle that is closed with a sealing plug at the mouth of the bottle, and the volatile material is typically a liquid.
In the prior art, a single syringe is generally adopted to take volatile substances from a storage bottle, in the process of taking the volatile substances, a sealing plug needs to be opened, then the syringe is extended into the storage bottle, the syringe is used for absorbing the volatile substances in the storage bottle, and the syringe is pushed to inject the volatile substances into a biological product. Although the liquid taking can be realized, the injector still has the following disadvantages in the using process:
because volatile substances have volatility, when the sealing plug is opened to take liquid, the volatile substances can volatilize to cause the waste of the volatile substances, but a small amount of volatile substances need to be injected into each biological product generally, a large amount of volatile substances are needed for a plurality of biological products, if a small-volume injector is used singly, the liquid can be taken from the storage bottle for many times, and the waste of the volatile substances is more after volatilization; if a large volume injector is used alone, the volatile substance cannot be accurately quantified when injected into a single biological product, and a small volume injector can only achieve accurate quantitative injection of a small amount of volatile substance.
Disclosure of Invention
The invention provides a volatile substance sealed sampling device capable of being used independently, and solves the problem that in the prior art, liquid taking times from a storage bottle cannot be reduced, and a small amount of volatile substances cannot be injected accurately and quantitatively.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a volatile substance sealed sampling device capable of being independently used, which comprises: the small-volume injector, the large-volume injector and the communication pipeline are arranged in the injector; a small volume syringe comprising: the buffer container is divided into a first cavity and a second cavity by the piston, the tip tube extends into the first cavity, the piston is fixed to one end of the push tube, the push tube is communicated with the first cavity, the other end of the push tube extends to the direction deviating from the first cavity and is connected with the end, a communication channel is arranged in the end, the second opening and closing mechanism is arranged at the end, and the second opening and closing mechanism is used for opening and closing the communication channel; the tip of the large-volume syringe is communicated with the end head communicating channel through a communicating pipeline.
Preferably, the communication line includes: hose and connector, hose one end can be dismantled with the pointed end of bulky syringe and be connected, and the hose adopts elastic rubber material to make, and the hose other end is connected with the connector, and the connector is used for only can with end snap-fit after second closing mechanism opens the end.
Preferably, the second opening/closing mechanism includes: the rotary rod, the coil spring, seal the piece and open the piece, install revolvable rotary rod on the end, the rotary rod is parallel with the promotion pipe, be formed with the convolution chamber between rotary rod and the end inner wall, the convolution intracavity convolution has the coil spring, coil spring one end is fixed to the rotary rod, the coil spring other end is fixed to the end inner wall, be fixed with the seal piece on the rotary rod and open the piece, the intercommunication passageway that the seal piece was used for the overhead seting up of blind end, open and offer the direction passageway that is used for with the intercommunication passageway intercommunication on the piece, can keep the seal piece to seal the intercommunication passageway under coil spring elastic force, the seal piece blocks connector and end buckle cooperation when the seal piece seals.
Preferably, the second opening/closing mechanism further includes: elastic component and limit commentaries on classics portion, the end moves in the direction parallel with the promotion pipe relatively to the rotary rod, be connected with the elastic component between rotary rod and the end, installation limit commentaries on classics portion on the rotary rod, the elastic component is used for keeping closing piece and compact heap to compress tightly on the end terminal surface and keep the relative end rotation of limit commentaries on classics portion restriction rotary rod, limit commentaries on classics portion can not restrict the relative end rotation of rotary rod after closing piece and compact heap all break away from with the end terminal surface.
Compared with the prior art, the invention has the following beneficial effects:
through setting up little volume syringe and bulky syringe, realized absorbing volatile liquid through little volume syringe, then store in little volume syringe and bulky syringe, the memory space is more, thereby spray a small amount of volatile liquid for a plurality of follow-up experiments, because every experiment needs a small amount of volatile liquid during the injection, can promote the impulse tube of little volume syringe earlier, make piston removal in the little volume syringe, make things convenient for little volume volatile liquid on the little volume syringe, the reading is more accurate, avoided absorbing an experiment at every turn from the big memory and open a small amount of volatile liquid and lead to the big memory to open the extravagant material of volatilizing many times, a small amount of volatile liquid of every experiment of accurate ration propelling movement of ability when using has also been guaranteed.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a cross-sectional view of a separately usable sealed sampling device for volatile substances;
fig. 2 is an enlarged view of the first opening/closing mechanism of fig. 1;
fig. 3 is an enlarged view of fig. 1 at the end.
Reference numerals: the small-volume syringe 1, the tip tube 11, the first opening and closing mechanism 12, the first end block 121, the moving rod 122, the second end block 123, the protrusion 124, the buffer container 13, the piston 14, the push tube 15, the tip 16, the annular groove 161, the rotation limiting groove 162, the second opening and closing mechanism 17, the rotating rod 171, the coil spring 172, the closing block 173, the opening block 174, the gasket 175, the gasket 176, the elastic member 177, the rotation limiting portion 178, the rotating ring 179, the large-volume syringe 2, the communication pipeline 3, the hose 31, and the connector 32.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:
as shown in fig. 1 to 3, the present invention provides a volatile substance sealed sampling device which can be used independently, comprising: a small-volume injector 1, a large-volume injector 2 and a communication pipeline 3; the small-volume syringe 1 includes: a tip pipe 11, a first opening and closing mechanism 12, a buffer container 13, a piston 14, a push pipe 15, a tip 16 and a second opening and closing mechanism 17, wherein one end of the tip pipe 11 is used for extending into a storage bottle, the other end of the tip pipe 11 extends into the buffer container 13, a first opening and closing mechanism 12 is installed at the joint of the tip pipe 11 and the buffer container 13, the first opening and closing mechanism 12 is used for opening and closing the tip pipe 11, a slidable piston 14 is arranged in the buffer container 13, the buffer container 13 is divided by the piston 14 to be positioned in a first cavity and a second cavity, the tip pipe 11 extends into the first cavity, the piston 14 is fixed to one end of a push pipe 15, the push pipe 15 is communicated with the first cavity, the other end of the push pipe 15 extends in the direction deviating from the first cavity and is connected with an end 16, a communication channel is arranged in the end 16, a second opening and closing mechanism 17 is installed on the end head 16, and the second opening and closing mechanism 17 is used for opening and closing the communication channel; the tip of the large-volume syringe 2 is communicated with the head 16 communication channel through the communication pipeline 3.
Since the object to be treated is a volatile liquid, the first opening/closing mechanism 12 is designed to prevent the volatile liquid from volatilizing and causing material waste during use. In order to ensure convenience in use, the first opening/closing mechanism 12 includes: a first end block 121, a moving rod 122 and a second end block 123, the end of the buffer container 13 close to the tip tube 11 is provided with the moving rod 122, the moving rod 122 can move in the direction perpendicular to the tip tube 11, the moving rod 122 is provided with an intermediate channel for communicating the tip tube 11 with the first cavity, both ends of the moving rod 122 extend out of the buffer container 13, one end of the moving rod 122 is provided with the first end block 121, the other end of the moving rod 122 is provided with the second end block 123, the moving rod 122 is provided with two gear holes, two convex parts 124 are formed on the inner wall of the buffer container 13 in a protruding way, each convex part 124 corresponds to a gear hole, when one protrusion 124 is snap-fitted to an inner wall of one shift hole, the other protrusion 124 is not aligned with the other shift hole, the intermediate channel communicates the tip tube 11 with the first cavity when one pair of protrusions 124 is fitted to the shift hole, and the moving rod 122 closes the tip tube 11 when the other pair of protrusions 124 is fitted to the shift hole (i.e., the moving rod 122 isolates the tip tube 11 from the first cavity). The first end block 121 and the second end block 123 are pushed, the movable rod 122 can be moved, the convex portion 124 and the gear hole can be switched in a matched mode by moving the movable rod 122, use is facilitated, and the position of the movable rod 122 is stabilized due to the matching of the convex portion 124 and the gear hole.
In order to design simple structure's intercommunication pipeline 3, realize the detachable connection of intercommunication pipeline 3 and small volume syringe 1 and bulky syringe 2, intercommunication pipeline 3 includes: hose 31 and connector 32, hose 31 one end and the most advanced detachable connection of bulky syringe 2, and hose 31 adopts elastic rubber material to make, and the other end of hose 31 is connected with connector 32, and connector 32 is used for only can with end 16 snap-fit after second switching mechanism 17 opens end 16.
In order to design the second opening and closing mechanism 17 with a simple structure, it is realized that the small-volume syringe 1 can be used alone when the communicating pipeline 3 is not connected to the small-volume syringe 1, and the liquid is prevented from flowing out of the push tube 15 when the small-volume syringe 1 can be used alone, and the second opening and closing mechanism 17 includes: the end socket 16 is provided with a rotatable rotating rod 171, the rotating rod 171 is parallel to the pushing tube 15, a convolution cavity is formed between the rotating rod 171 and the inner wall of the end socket 16, a coil spring 172 is convoluted in the convolution cavity, one end of the coil spring 172 is fixed to the rotating rod 171, the other end of the coil spring 172 is fixed to the inner wall of the end socket 16, a sealing block 173 and an opening block 174 are fixed to the rotating rod 171, the sealing block 173 is used for sealing a communication channel formed in the end socket 16, a guide channel for communicating with the communication channel is formed in the opening block 174, the sealing block 173 can be kept to be sealed and communicated under the elastic force of the coil spring 172, and when the sealing block 173 seals the communication channel, the sealing block 173 prevents the connecting head 32 from being in snap fit with the end socket.
The sealing gasket 175 is arranged on the surface of the sealing block 173 close to the end head 16, the sealing ring 176 is arranged on the surface of the opening block 174 close to the end head 16, and the sealing ring 176 and the sealing gasket 175 are both made of elastic rubber materials.
In order to ensure that the sealing block 173 can press the sealing pad 175 against the end head 16, and the opening block 174 can press the sealing pad 176 against the end head 16, the elastic member 177 is designed, in order to avoid damaging the sealing pad 176 and the sealing pad 175 during the rotation process, the rotation limiting portion 178 is designed, and it is realized that the rotating rod 171 can be rotated after the sealing pad 175 and the sealing pad 176 are separated from the end head 16, and the second opening and closing mechanism 17 further comprises: elastic component 177 and rotation limiting part 178, rotating rod 171 can move in the direction parallel to pushing tube 15 relative to end 16, connecting elastic component 177 between rotating rod 171 and end 16, installing rotation limiting part 178 on rotating rod 171, elastic component 177 is used for keeping closing piece 173 and pressure block to compress tightly on the end face of end 16 and keeping rotation limiting part 178 to limit rotating rod 171 to rotate relative to end 16, rotation limiting part 178 can not limit rotating rod 171 to rotate relative to end 16 after closing piece 173 and pressure block are all separated from end face of end 16.
The elastic member 177 is a spring, a rotating ring 179 is installed at one end of the rotating rod 171, which is far away from the communicating pipeline 3, the rotating ring 179 can only rotate relative to the rotating rod 171, the rotating ring 179 cannot move relative to the rotating rod 171 in a direction parallel to the rotating rod 171, the rotating ring 179 is fixed to one end of the spring, the other end of the spring is fixed to the head 16, and the design of the rotating ring 179 avoids torsional damage of the spring when the rotating rod 171 rotates relative to the head 16.
The rotation limiting part 178 is formed by protruding the surface of the rotating rod 171, the end head 16 is provided with a rotating hole for the rotating rod 171 to rotate, the inner wall of the rotating hole is recessed to form an annular groove 161, the inner wall of the annular groove 161 is recessed towards the direction departing from the communicating pipeline 3 to form two rotation limiting grooves 162, the annular groove 161 is used for the rotating rod 171 to rotate, the rotation limiting grooves 162 are used for the rotation limiting part 178 to be inserted from the direction parallel to the rotating rod 171, and when the rotation limiting part 178 is positioned in one rotation limiting groove 162, the sealing end is pressed on the end head 16 by the sealing block 173 and the communicating; when the rotation restricting portion 178 is located in the other rotation restricting groove 162, the opening block 174 communicates the communication passage with the communication pipe 3 and the opening block 174 presses the seal ring 176 against the tip 16.
The design idea of this embodiment is as follows: firstly, in order to buffer a large amount of volatile liquid, a small-volume injector 1, a large-volume injector 2 and a communicating pipeline 3 are designed, so that the use amount of a plurality of tests is buffered, and then the small-volume injector 1 can accurately and quantitatively use a small amount of volatile volume in each test; then, in order to conveniently clean the large-volume injector 2 and the small-volume injector 1 and also to conveniently separate the large-volume injector 2 and the small-volume injector 1 for use, the communication management is designed to be detachably connected with the large-volume injector 2 and the small-volume injector 1, and meanwhile, in order to ensure that the small-volume injector 1 can be independently used, the second opening and closing mechanism 17 is designed; then, in order to ensure the sealing performance when the closing block 173 closes the communication passage, a sealing gasket 175 is designed, and in order to ensure that the opening block 174 does not leak liquid when communicating the communication passage, a sealing ring 176 is designed; then, because the opposite directions of the closing block 173 and the opening block 174 and the communication channel are switched by rotating the rotating rod 171, if the sealing gasket 175 and the sealing gasket 176 are contacted with the end head 16 when the rotating rod 171 is rotated, the sealing gasket 176 and the sealing gasket 175 are damaged, in order to avoid the phenomenon and ensure that the closing block 173 and the opening block 174 are stabilized to a required position, the rotating rod 171 is designed to move in a direction parallel to the pushing pipe 15 relative to the end head 16, the rotation limiting part 178 is matched with the rotation limiting groove 162, and the elastic element 177 is installed, so that the rotating rod 171 can be rotated only after the rotation limiting part 178 is separated from the rotation limiting groove 162 (namely, after the sealing gasket 176 and the sealing gasket 175 are separated from the end head 16); then, in order to ensure that the elastic member 177 is connected with the rotating rod 171 and prevent the spring from being damaged by torsion, the matching of the rotating ring 179 and the rotating rod 171 is designed; finally, in order to avoid that the communication channel is not opened after the connecting head 32 is in snap fit with the end head 16, the thickness of the opening block 174 is larger than that of the closing block 173, a first receiving groove for receiving the opening block 174 and a second receiving groove for receiving the closing block 173 are arranged corresponding to the connecting head 32, the inner wall of the first receiving groove is tightly attached to the opening block 174, and the inner wall of the second receiving groove is tightly attached to the closing block 173, so that the snap fit between the connecting head 32 and the end head 16 is obstructed by the action of the inner wall of the closing block 173 and the first receiving groove when the closing block 173 is aligned with the communication channel, the phenomenon that the connecting head 32 is not communicated with the small-volume injector 2 for use after the connecting head 32 is connected with the end head 16 without the communication channel being opened by the opening block 174 is avoided, and the misoperation occurs, and the connecting head 32 and the end.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (4)
1. A self-contained, volatile substance-sealed sampling device, comprising: the small-volume injector, the large-volume injector and the communication pipeline are arranged in the injector;
a small volume syringe comprising: the buffer container is divided into a first cavity and a second cavity by the piston, the tip tube extends into the first cavity, the piston is fixed to one end of the push tube, the push tube is communicated with the first cavity, the other end of the push tube extends to the direction deviating from the first cavity and is connected with the end, a communication channel is arranged in the end, the second opening and closing mechanism is arranged at the end, and the second opening and closing mechanism is used for opening and closing the communication channel;
the tip of the large-volume syringe is communicated with the end head communicating channel through a communicating pipeline.
2. A self-contained, sealed sampling device of claim 1, wherein the communication line comprises: hose and connector, hose one end can be dismantled with the pointed end of bulky syringe and be connected, and the hose adopts elastic rubber material to make, and the hose other end is connected with the connector, and the connector is used for only can with end snap-fit after second closing mechanism opens the end.
3. A self-contained volatile substance sealed sampling device according to claim 2, wherein the second opening and closing mechanism comprises: the rotary rod, the coil spring, seal the piece and open the piece, install revolvable rotary rod on the end, the rotary rod is parallel with the promotion pipe, be formed with the convolution chamber between rotary rod and the end inner wall, the convolution intracavity convolution has the coil spring, coil spring one end is fixed to the rotary rod, the coil spring other end is fixed to the end inner wall, be fixed with the seal piece on the rotary rod and open the piece, the intercommunication passageway that the seal piece was used for the overhead seting up of blind end, open and offer the direction passageway that is used for with the intercommunication passageway intercommunication on the piece, can keep the seal piece to seal the intercommunication passageway under coil spring elastic force, the seal piece blocks connector and end buckle cooperation when the seal piece seals.
4. A self-contained volatile substance sealed sampling device according to claim 3, wherein the second opening and closing mechanism further comprises: elastic component and limit commentaries on classics portion, the end moves in the direction parallel with the promotion pipe relatively to the rotary rod, be connected with the elastic component between rotary rod and the end, installation limit commentaries on classics portion on the rotary rod, the elastic component is used for keeping closing piece and compact heap to compress tightly on the end terminal surface and keep the relative end rotation of limit commentaries on classics portion restriction rotary rod, limit commentaries on classics portion can not restrict the relative end rotation of rotary rod after closing piece and compact heap all break away from with the end terminal surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011120338.2A CN112284825B (en) | 2020-10-19 | 2020-10-19 | Volatile matter sealing sampling equipment capable of being used independently |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011120338.2A CN112284825B (en) | 2020-10-19 | 2020-10-19 | Volatile matter sealing sampling equipment capable of being used independently |
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| CN112284825A true CN112284825A (en) | 2021-01-29 |
| CN112284825B CN112284825B (en) | 2023-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702587A (en) * | 2021-08-26 | 2021-11-26 | 江苏泰洁检测技术股份有限公司 | Device for measuring volatile organic compounds in solid waste |
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