CN210953560U - Sampling device for air defense basement engineering supervision - Google Patents
Sampling device for air defense basement engineering supervision Download PDFInfo
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- CN210953560U CN210953560U CN201922044774.5U CN201922044774U CN210953560U CN 210953560 U CN210953560 U CN 210953560U CN 201922044774 U CN201922044774 U CN 201922044774U CN 210953560 U CN210953560 U CN 210953560U
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Abstract
The utility model discloses a sampling device that air defense basement engineering was managed, its characterized in that, including sampling tube, piston rod, piston handle, rubber buffer and sample needle tubing, the bottom surface and the top surface of sampling tube set up through-hole one and through-hole two respectively, the fixed breather pipe that is provided with of bottom surface and through-hole one intercommunication of sampling tube, the fixed pipe that is provided with through-hole two intercommunication in the sampling tube, the pipe medial surface is provided with the rubber layer; the piston is slidably arranged in the sampling tube; the piston rod is fixedly arranged on the top surface of the piston and is slidably arranged in the guide pipe, the piston rod and the rubber layer are in interference fit with the piston handle to fix the top of the piston rod, and the piston rod is positioned on the outer side of the sampling pipe; the rubber plug is plugged at the lower opening of the vent pipe; the both ends of sample needle tubing all set up the wedge opening, the utility model discloses simple structure, convenient to use.
Description
Technical Field
The utility model relates to a technical field of building supervision equipment specifically is a sampling device that air defense basement engineering was supervised.
Background
The air-raid shelter is a hole dug for preventing air attacks by enemies and reducing damage, and is mainly used for storing food or military supplies. The basement is mostly used as a storage room for people to hide.
The air-tight cavity is provided with a ventilation system, and the ventilation system ensures the air circulation at each position in the air-tight cavity and ensures the air quality in the air-tight cavity. When detecting the air quality of air-raid shelter engineering quality, just need collect the air quality of a plurality of corners in air-raid shelter to bring into and detect in the laboratory, there is equipment can be quick collection air in the air-raid shelter now, but when taking out in the laboratory, mixes external air easily, influences measuring result.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sampling device that air defense basement engineering was managed, the air sample is simpler, has solved the problem of mixing the external air easily when present air takes out.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sampling device that air defense basement engineering was managed, includes sampling tube, piston rod, piston handle, rubber buffer and sample needle tubing, wherein:
the bottom surface and the top surface of the sampling tube are respectively provided with a first through hole and a second through hole, the bottom surface of the sampling tube is fixedly provided with a vent pipe communicated with the first through hole, a guide pipe is fixedly arranged in the sampling tube and communicated with the second through hole, and the inner side surface of the guide pipe is provided with a rubber layer;
the piston is slidably arranged in the sampling tube;
the piston rod is fixedly arranged on the top surface of the piston and is slidably arranged in the guide pipe, and the piston rod is in interference fit with the rubber layer;
the piston handle is fixed on the top of the piston rod and is positioned on the outer side of the sampling tube;
the rubber plug is plugged at the lower opening of the vent pipe;
the two ends of the sampling needle tube are provided with wedge-shaped openings.
Further, the rubber buffer is provided with the incision that runs through the terminal surface.
Further, the middle part of sample needle tube side fixed be provided with the cover of gripping, the distance between the top surface of the last mouth of sample needle tube and the cover of gripping is greater than the thickness of rubber buffer.
Furthermore, a groove is formed in the side surface of the holding sleeve.
Furthermore, the side of the sampling tube is provided with a graduated scale.
Compared with the prior art, the beneficial effects of the utility model are that:
air sampling is simpler, only need insert the rubber buffer with the needle tube of taking a sample during the sample, and communicate with the sampling tube inner chamber, rise through piston handle pulling piston this moment, the sampling tube inner chamber forms the negative pressure, air in the air defense cavity enters into the sampling tube by the needle tube of taking a sample, after accomplishing sample work, extract behind the needle tube of taking a sample, the rubber buffer can the shutoff breather pipe, at this moment, shift this sampling device to the laboratory, it is convenient to transport, piston rod and the inboard rubber layer interference fit of pipe, frictional force between piston rod and the rubber layer is big, when shifting, the piston rod is difficult for receiving external power and removes.
In the laboratory, it is simpler to discharge the sample air, has avoided or has reduced during the external air mixes into the sample air, inserts experimental facilities's experimental cavity with the needle tubing of taking a sample earlier, and the other end inserts in the rubber buffer, then pushes down the piston handle to make the air in the piston decline discharge sampling tube.
Drawings
FIG. 1 is a side sectional view of a sampling tube of the present invention;
FIG. 2 is a bottom partial view of a side cross-sectional view of the sampling tube of the present invention;
FIG. 3 is a top partial view of a side cross-sectional view of the coupon of the present invention;
fig. 4 is a schematic cross-sectional view of the sampling needle of the present invention.
In the figure: the sampling tube-1, the piston-2, the piston rod-3, the piston handle-4, the rubber plug-5, the sampling needle tube-6, the through hole-7, the through hole-8, the vent pipe-9, the guide pipe-10, the rubber layer-11, the notch-12, the holding sleeve-13, the groove-14 and the graduated scale-15.
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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawings, a sampling device for monitoring air defense basement engineering comprises a sampling tube 1, a piston 2, a piston rod 3, a piston handle 4, a rubber plug 5 and a sampling needle tube 6, wherein:
the sampling tube is characterized in that a first through hole 7 and a second through hole 8 are formed in the bottom surface and the top surface of the sampling tube 1 respectively, a vent pipe 9 is fixedly arranged on the bottom surface of the sampling tube 1 and communicated with the first through hole 7, a guide pipe 10 is fixedly arranged in the sampling tube 1 and communicated with the second through hole 8, a rubber layer 11 is arranged on the inner side surface of the guide pipe 10, and a graduated scale 15 is arranged on the side surface of the sampling tube 1.
Piston 2 slidable installs in sampling tube 1, and 2 sides of piston are provided with the sealing rubber circle, guarantee can with the leakproofness between the 1 inner wall of sampling tube when sliding. The construction of the piston 2 is, of course, prior art.
Piston rod 3 is fixed to be set up at the top surface of piston 2 to slidable installs in pipe 10, piston rod and 11 interference fit of rubber layer, piston rod 3 has smooth round bar, pipe 10 has suitable length, rubber layer 11 increases piston rod 3's frictional force, piston rod 3 is difficult for receiving external force and slides, and stability is stronger, especially when shifting after sampling device accomplishes the extraction air, more stable piston rod 3 has reduced or has avoided when shifting, and piston rod 3 receives the possibility that external force takes place the displacement.
The plunger handle 4 fixes the top of the plunger rod 3 and is located outside the sampling tube 1.
The rubber buffer 5 seals the lower opening of the vent pipe 9 and is provided with a notch 12 penetrating through the end face, and the rubber buffer 5 can ensure the sealing performance of the notch 12 in a natural state.
The working principle is as follows:
when not using, the bottom surface of piston 2 supports and leans on in 1 inner chamber bottom surface of sampling tube, when needs sample, in 6 inserts rubber buffer 5's incision 12 of sample needle tubing, pulling piston handle 4 this moment, in the air enters into sampling tube 1 by sample needle tubing 6 in the air defense cavity, the volume of sample can be surveyed through scale 15, after accomplishing the sample, extracts sample needle tubing 6, and rubber buffer 5 seals incision 12, and the air in the sampling tube 1 can't be discharged.
When a test is needed, the lower opening of the sampling needle tube 6 is inserted into a test cavity, such as a bottle, to wait for detection, the other end of the sampling needle tube 6 is simultaneously inserted into the notch 12, the piston handle 4 is pressed down at the moment, and air in the sampling tube 1 is discharged into the test cavity, so that the phenomenon that external air is mixed into the sampling air is reduced or avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a sampling device that air defense basement engineering was managed, its characterized in that, includes sampling tube, piston rod, piston handle, rubber buffer and sample needle tubing, wherein:
the bottom surface and the top surface of the sampling tube are respectively provided with a first through hole and a second through hole, the bottom surface of the sampling tube is fixedly provided with a vent pipe communicated with the first through hole, a guide pipe is fixedly arranged in the sampling tube and communicated with the second through hole, and the inner side surface of the guide pipe is provided with a rubber layer;
the piston is slidably arranged in the sampling tube;
the piston rod is fixedly arranged on the top surface of the piston and is slidably arranged in the guide pipe, and the piston rod is in interference fit with the rubber layer;
the piston handle is fixed on the top of the piston rod and is positioned on the outer side of the sampling tube;
the rubber plug is plugged at the lower opening of the vent pipe;
the two ends of the sampling needle tube are provided with wedge-shaped openings.
2. The air defense basement engineering supervision sampling device according to claim 1, characterized in that: the rubber stopper is provided with a notch penetrating through the end face.
3. The air defense basement engineering supervision sampling device according to claim 2, characterized in that: the middle part of sample needle tube side fixed be provided with the cover of gripping, the distance between the top surface of the last mouth of sample needle tube and the cover of gripping is greater than the thickness of rubber buffer.
4. The air defense basement engineering supervision sampling device according to claim 3, characterized in that: the side surface of the holding sleeve is provided with a groove.
5. The air defense basement engineering supervision sampling device according to claim 4, characterized in that: and a graduated scale is arranged on the side surface of the sampling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922044774.5U CN210953560U (en) | 2019-11-22 | 2019-11-22 | Sampling device for air defense basement engineering supervision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922044774.5U CN210953560U (en) | 2019-11-22 | 2019-11-22 | Sampling device for air defense basement engineering supervision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210953560U true CN210953560U (en) | 2020-07-07 |
Family
ID=71382812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922044774.5U Active CN210953560U (en) | 2019-11-22 | 2019-11-22 | Sampling device for air defense basement engineering supervision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210953560U (en) |
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2019
- 2019-11-22 CN CN201922044774.5U patent/CN210953560U/en active Active
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