CN212159245U - Sampling device for oxygen detection - Google Patents
Sampling device for oxygen detection Download PDFInfo
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- CN212159245U CN212159245U CN202020949832.9U CN202020949832U CN212159245U CN 212159245 U CN212159245 U CN 212159245U CN 202020949832 U CN202020949832 U CN 202020949832U CN 212159245 U CN212159245 U CN 212159245U
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- sampling
- piston rod
- sealing
- sampling cylinder
- fixedly connected
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Abstract
The utility model discloses a sampling device for oxygen detection in the technical field of oxygen detection sampling, which comprises a sampling cylinder, wherein the inside of the sampling cylinder is fixedly connected with an annular sleeve with an open bottom end, four uniformly distributed air inlets are arranged at the top of the sampling cylinder, a sealing block is slidably connected to the top of the sampling cylinder, a sealing spring is fixedly connected between the sealing block and the sampling cylinder, a piston rod is slidably connected to the inside of the annular sleeve, a limiting block is slidably connected to the outer side of the sampling cylinder, which is positioned on the piston rod, and a connecting rod is arranged between the sealing block and the limiting block; upwards slide in the ring liner through the piston rod for the sealing plug compression extrusion spring, make the sealing plug be in the open mode to the air inlet, in piston rod upward movement, through the effect of transfer line, drive the stopper and move on the cartridge, at this moment, through sealing spring's elasticity effect, make sealed piece seal the top of air inlet, prevent that the oxygen after the sampling from taking place to run off.
Description
Technical Field
The utility model relates to an oxygen detects sampling technical field, concretely relates to oxygen detects uses sampling device.
Background
Oxygen detection in the broad sense refers to the detection of the constituent components of air. In the narrow sense of air detection, mainly from the application point of view, indoor air detection is the focus of research. The air quality detection device is used for detecting air quality by means of decoration pollution caused by substances harmful to human bodies contained in indoor decoration materials, furniture and the like and released into home and office environments.
Sampling device is a container that is used for collecting gas or liquid, prevents that gas or liquid from taking place the loss phenomenon to make things convenient for the later stage to carry out detection achievement to gas or liquid in the container.
Common sampling device in the existing market is comparatively troublesome in the collection to oxygen, has certain inconvenient nature to, can have the possibility that oxygen takes place to run off when the sampling, influence the accuracy of follow-up detection.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims to overcome the defects existing in the prior art and provide a sampling device for oxygen detection.
(II) technical scheme
The utility model provides a sampling device for oxygen detects, including the cartridge, the inside fixedly connected with bottom open-ended annular cover of cartridge, four evenly distributed's air inlet is seted up at the top of cartridge, the top sliding connection that the cartridge is located the air inlet has sealed piece, fixedly connected with sealing spring between sealed piece and the cartridge, the inside sliding connection of annular cover has the piston rod, the outside sliding connection that the cartridge is located the piston rod has the stopper, be provided with the connecting rod between sealed piece and the stopper, it has the transfer line to articulate between piston rod and the stopper, the bottom that the cartridge is located the air inlet is provided with the sealing plug, the cartridge is located the below fixedly connected with U template of sealing plug, fixedly connected with extrusion spring between U template and the sealing plug.
Preferably, the inside fixedly connected with L type gag lever post of cartridge, L type gag lever post run through sealed piece and sealing spring's inside.
Preferably, the air inlet is two-section type round table shape, the size of the sealing block is larger than that of the top of the air inlet, and the sealing plug is matched with the size of the bottom of the air inlet.
Preferably, one end of the connecting rod is fixedly connected with the sealing block, and the other end of the connecting rod extends to the inside of the limiting block.
Preferably, when the piston rod moves upwards, the transmission rod is vertically distributed with the top of the sampling cylinder, and the side wall of the limiting block is in contact with the piston rod.
Preferably, the size of the piston rod and the contact surface of the annular sleeve are smooth curved surfaces, and the contact surface of the piston rod and the limiting block is a matched curved surface.
(III) advantageous effects
The utility model provides a sampling device for oxygen detection has following advantage:
the sampling device comprises a piston rod, a limiting block, a piston rod, an extrusion spring, a piston rod, a limiting block, a piston rod, a transmission rod and a limiting block, wherein the piston rod slides upwards in an annular sleeve, so that the pressure inside a sampling cylinder is reduced, the sealing plug compresses the extrusion spring, the sealing plug is in an open state to an air inlet, oxygen sampling treatment is carried out inside the sampling cylinder, the limiting block is driven to move on the sampling cylinder through the action of the transmission rod while the piston rod moves upwards, at the moment, the sealing block is enabled to seal the top of the air inlet through the elastic action of the sealing spring, the sampled oxygen is prevented from being lost, the sampling treatment on;
2, the setting of L type gag lever post for to the sealed piece open or the process of closing the air inlet is injectd, guarantees the stability of sealed piece motion.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only for the purpose of the present invention, protecting some embodiments, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the main section structure of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
fig. 3 is a schematic view of the structure of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a sampling cartridge; 2. an annular sleeve; 3. an air inlet; 4. a sealing block; 5. a seal spring; 6. a piston rod; 7. a limiting block; 8. a connecting rod; 9. a transmission rod; 10. a sealing plug; 11. a U-shaped plate; 12. a compression spring; 13. l type gag lever post.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a sampling device for oxygen detection comprises a sampling cylinder 1, wherein an annular sleeve 2 with an opening at the bottom end is fixedly connected inside the sampling cylinder 1, four air inlets 3 which are uniformly distributed are formed in the top of the sampling cylinder 1, specifically, the sampling cylinder 1 is divided into an internal operation area and an external sampling area through the annular sleeve 2, a vacuumizing port is formed in the bottom end of the sampling cylinder 1, when oxygen is sampled, the inside of the sampling cylinder is vacuumized through the vacuumizing port, and then the vacuumizing port is sealed; the top of the sampling cylinder 1 positioned at the air inlet 3 is slidably connected with a sealing block 4, a sealing spring 5 is fixedly connected between the sealing block 4 and the sampling cylinder 1, the inner part of the annular sleeve 2 is slidably connected with a piston rod 6, the outer side of the sampling cylinder 1 positioned at the piston rod 6 is slidably connected with a limiting block 7, a connecting rod 8 is arranged between the sealing block 4 and the limiting block 7, a transmission rod 9 is hinged between the piston rod 6 and the limiting block 7, the bottom of the sampling cylinder 1 positioned at the air inlet 3 is provided with a sealing plug 10, the sampling cylinder 1 positioned below the sealing plug 10 is fixedly connected with a U-shaped plate 11, an extrusion spring 12 is fixedly connected between the U-shaped plate 11 and the sealing plug 10, specifically, in an initial state, through the elastic action of the extrusion spring 12, the sealing plug 10 and the bottom of the air inlet 3 are in a sealing state, the piston rod 6 is, by the action of the connecting rod 8, the sealing block 4 compresses the sealing spring 5, so that the sealing block 4 and the top of the air inlet 3 are in an open state.
One specific application of this embodiment is: when sampling is carried out inside the sampling cylinder 1, firstly, the interior of the sampling cylinder 1 is vacuumized through the vacuumizing port, then, the vacuumizing port is sealed, then, the piston rod 6 slides upwards in the annular sleeve 2, so that the pressure inside the sampling cylinder 1 is reduced, the sealing plug 10 compresses the extrusion spring 12, the sealing plug 10 is in an open state for the air inlet 3, oxygen sampling treatment is carried out inside the sampling cylinder 1, the piston rod 6 moves upwards, meanwhile, the limiting block 7 is driven to move on the sampling cylinder 1 through the action of the transmission rod 9, at the moment, the sealing block 4 seals the top of the air inlet 3 through the elastic action of the sealing spring 5, the sampled oxygen is prevented from being lost, the sampling treatment of the oxygen is simple to operate, in addition, the limiting block 7 moves to the piston rod 6, and a certain limiting effect can be carried out on the piston rod 6, avoiding the loss of oxygen in the cartridge 1.
Further, the inside fixedly connected with L type gag lever post 13 of cartridge 1, L type gag lever post 13 run through the inside of sealed piece 4 and sealing spring 5, and is concrete, L type gag lever post 13's setting for to the sealed piece 4 open the process of closing or opening air inlet 3 prescribe a limit to, guarantee the stability of sealed piece 4 motion.
Further, air inlet 3 is two segmentation round platforms form, and the size of sealed piece 4 is greater than the size at 3 tops of air inlet, and sealing plug 10 and the big or small looks adaptation of the bottom of air inlet 3, it is concrete, guarantee under the initial condition, sealing plug 10 is in encapsulated situation to air inlet 3, after sampling to oxygen, guarantee that sealed piece 4 seals the top of air inlet 3, prevents that oxygen from collecting and accomplish the back and run off.
Further, the one end of connecting rod 8 and 4 fixed connection of sealed piece, the other end of connecting rod 8 extends to the inside of stopper 7, and is concrete, and connecting rod 8 can dismantle with stopper 7 and be connected, and the connecting rod 8 of different length can be changed again in the installation of connecting rod 7 and stopper 8 of both being convenient for, comes the oxygen volume of 1 inside samplings of cartridge to adjust.
Further, when piston rod 6 upward movement, when transfer line 9 is vertical distribution with 1 top of sampling cylinder, the lateral wall and the piston rod 6 contact of stopper 7, it is specific, guarantee that piston rod 6 is gathering the completion back to oxygen, sealed piece 4 is in encapsulated situation to the top of air inlet 3, prevents that oxygen from losing to stopper 7 and piston rod 6 contact are spacing to piston rod 6, prevent that piston rod 6 from continuing to remove, take place to lose to oxygen in the sampling cylinder 1.
Further, the size of piston rod 6 and the contact surface of annular cover 2 are smooth curved surface, and piston rod 6 is the curved surface of looks adaptation with the contact surface of stopper 7, and is concrete, guarantees the stability of piston rod 6 motion and improves stopper 7 to the spacing effect of piston rod 6.
In the description herein, references to the description of the terms "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A sampling device for oxygen detection comprises a sampling cartridge (1), and is characterized in that: the inner part of the sampling cylinder (1) is fixedly connected with an annular sleeve (2) with an open bottom end, the top of the sampling cylinder (1) is provided with four uniformly distributed air inlets (3), the top of the sampling cylinder (1) positioned at the air inlets (3) is connected with a sealing block (4) in a sliding manner, a sealing spring (5) is fixedly connected between the sealing block (4) and the sampling cylinder (1), the inner part of the annular sleeve (2) is connected with a piston rod (6) in a sliding manner, the outer side of the sampling cylinder (1) positioned at the piston rod (6) is connected with a limiting block (7) in a sliding manner, a connecting rod (8) is arranged between the sealing block (4) and the limiting block (7), a transmission rod (9) is hinged between the piston rod (6) and the limiting block (7), and the bottom of the sampling cylinder (1) positioned at the, the sampling tube (1) is located below the sealing plug (10) and is fixedly connected with a U-shaped plate (11), and an extrusion spring (12) is fixedly connected between the U-shaped plate (11) and the sealing plug (10).
2. The sampling device for oxygen detection according to claim 1, wherein: the inside fixedly connected with L type gag lever post (13) of cartridge (1), L type gag lever post (13) run through sealed piece (4) with the inside of sealing spring (5).
3. The sampling device for oxygen detection according to claim 1, wherein: the air inlet (3) is in a two-section round table shape, the size of the sealing block (4) is larger than that of the top of the air inlet (3), and the sealing plug (10) is matched with the size of the bottom of the air inlet (3).
4. The sampling device for oxygen detection according to claim 1, wherein: one end of the connecting rod (8) is fixedly connected with the sealing block (4), and the other end of the connecting rod (8) extends to the inside of the limiting block (7).
5. The sampling device for oxygen detection according to claim 1, wherein: when the piston rod (6) moves upwards, the transmission rod (9) and the top of the sampling cylinder (1) are vertically distributed, and the side wall of the limiting block (7) is in contact with the piston rod (6).
6. The sampling device for oxygen detection according to claim 5, wherein: the size of the piston rod (6) and the contact surface of the annular sleeve (2) are smooth curved surfaces, and the contact surface of the piston rod (6) and the limiting block (7) is a curved surface matched with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020949832.9U CN212159245U (en) | 2020-05-29 | 2020-05-29 | Sampling device for oxygen detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020949832.9U CN212159245U (en) | 2020-05-29 | 2020-05-29 | Sampling device for oxygen detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212159245U true CN212159245U (en) | 2020-12-15 |
Family
ID=73702522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020949832.9U Expired - Fee Related CN212159245U (en) | 2020-05-29 | 2020-05-29 | Sampling device for oxygen detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212159245U (en) |
-
2020
- 2020-05-29 CN CN202020949832.9U patent/CN212159245U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 Termination date: 20210529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |