CN210863288U - Vacuum box gas sampler - Google Patents
Vacuum box gas sampler Download PDFInfo
- Publication number
- CN210863288U CN210863288U CN201921503899.3U CN201921503899U CN210863288U CN 210863288 U CN210863288 U CN 210863288U CN 201921503899 U CN201921503899 U CN 201921503899U CN 210863288 U CN210863288 U CN 210863288U
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- vacuum box
- position switch
- air bag
- gas sampler
- switch group
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Abstract
The utility model provides a vacuum chamber gas sampling ware, including the vacuum chamber, be located the inside air pocket of vacuum chamber, still including the telescopic machanism who holds the air pocket, detect the position switch group of air pocket position, the air pocket inflation process extrudes telescopic machanism in real time, and telescopic machanism triggers each position switch of position switch group down in proper order. The air bags can be detected at a plurality of positions by matching the position switch group with the telescopic mechanism, so that the air bags with different specifications and sizes can be detected, the air bags are prevented from being expanded and broken, the detection accuracy is greatly improved, and the vacuum box sampler is simple in structure and cannot increase the cost too much.
Description
Technical Field
The utility model belongs to the technical field of gaseous sampling, concretely relates to vacuum box gas sampler.
Background
In the current vacuum box gas sampler, in order to judge whether the air bag is full, a mode of judging the negative pressure of the vacuum box is mostly adopted. Because the types of the air bags are various, the negative pressure judgment threshold of each air bag is different, and the quality of the air bags is uneven, the negative pressure measurement has certain errors, and the air bags are easily collected unsatisfactorily or are broken by expansion. The position switch is used for judging whether the air bag is full, but only one position switch is arranged at the bottom of the vacuum box body, and the judgment is only limited to one type of air bag.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vacuum box gas sampling ware overcomes whether the air pocket that prior art vacuum box sampling ware exists is full of and detects inaccurately, causes the air pocket to expand brokenly even, can only detect defects such as the air pocket of a model.
The utility model provides a pair of vacuum chamber gas sampling ware, including vacuum chamber, the air pocket that is located vacuum chamber inside, the telescopic machanism who holds the air pocket, detect the position switch group of air pocket position, the air pocket process of inflating extrudes telescopic machanism in real time, and telescopic machanism triggers each position switch of position switch group down in proper order.
Preferably, the telescopic mechanism comprises a partition plate and a spring, the spring is fixed at the bottom of the vacuum box, and the partition plate is fixed on the spring.
Preferably, telescopic machanism still includes the baffle guide post, baffle guide post one end is fixed in cavity bottom of the case portion, and the baffle is passed to one end.
Preferably, the detection point of the position switch group is located in the moving stroke of the partition board.
Preferably, the vacuum box is provided with a gas interface, and the gas interface is connected to a power device outside the vacuum box through a pipeline.
Preferably, the vacuum box is provided with an air bag interface, and the air bag interface is connected to the air bag through a pipeline.
Preferably, the switches of the position switch group may be mechanical switches or photoelectric switches.
The utility model has the advantages that: the air bags can be detected at a plurality of positions by matching the position switch group with the telescopic mechanism, so that the air bags with different specifications and sizes can be detected, the air bags are prevented from being expanded and broken, the detection accuracy is greatly improved, and the vacuum box sampler is simple in structure and cannot increase the cost too much.
Drawings
Fig. 1 is a schematic structural diagram of the vacuum box gas sampler of the present invention.
The attached drawings are marked as follows:
1. the device comprises a vacuum box, 2, an air bag, 3, a partition plate, 4, a spring, 5, a partition plate guide column, 6, a position switch group, 7, an air interface, 8, a first pipeline, 9, a power device, 10, an air bag interface, 11 and a second pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the scope of the invention.
Examples
Referring to fig. 1, the vacuum box gas sampler of the present embodiment includes a vacuum box 1, an air bag 2 located inside the vacuum box 1, a partition plate 3 supporting the air bag 2, and a spring 4 fixedly connected to the partition plate 3, wherein the spring 4 is fixed at the bottom of the vacuum box 1. The sampler also comprises a partition guide column 5, wherein one end of the partition guide column 5 is fixed at the bottom of the vacuum box 1, and the other end of the partition guide column penetrates through the partition 3. The shape of the partition board 3 can be various shapes such as rectangle, square, round, etc., and the number of the partition board guide posts 5 can be determined according to the shape and the area size of the partition board 3, for example, the partition board 3 of the embodiment is rectangle, and the number of the partition board guide posts 5 is four, which are respectively arranged at four corners of the partition board 3. The sampler also comprises a position switch group 6, and the detection point of the position switch group 6 is positioned in the moving stroke of the partition board 3. The vacuum box 1 is further provided with a gas interface 7, the gas interface 7 is connected to a power device 9 outside the vacuum box 1 through a first pipeline 8, and the power device 9 is a vacuum pumping pump. The vacuum box 1 is further provided with an air bag interface 10, and the air bag interface 10 is connected to the air bag 2 through a second pipeline 11. The switches of the position switch group 6 may be mechanical switches or photoelectric switches.
A circuit board can be installed in the vacuum box 1, the position switch group 6 is directly connected to the circuit board, the circuit board is connected with a display or an indicator lamp, and the display and the indicator lamp are arranged outside the vacuum box 1, so that the user can visually see which position switch is triggered. The design of circuit part belongs to prior art, not the utility model discloses the scope of protection is no longer repeated.
The power device 9 extracts the air in the vacuum box 1 through the air interface 7, negative pressure is formed in the vacuum box 1, the air bag 2 is expanded due to the action of the negative pressure in the vacuum box 1, and external air enters the air bag 2 through the air bag interface 10. Along with the expansion of the air bag 2, the partition board 3 starts to move according to the stroke, and the position switch group 6 is triggered, so that the position switch group 6 can judge the specific position of the partition board 3, and whether the air bag 2 is full is judged according to the position of the partition board 3.
Claims (7)
1. The utility model provides a vacuum box gas sampler, includes vacuum box, is located the inside air pocket of vacuum box which characterized in that: the air bag inflation device is characterized by further comprising a telescopic mechanism for supporting the air bag and a position switch group for detecting the position of the air bag, wherein the telescopic mechanism is extruded in real time in the air bag inflation process, and the telescopic mechanism goes down to sequentially trigger each position switch of the position switch group.
2. The vacuum box gas sampler of claim 1, wherein: the telescopic mechanism comprises a partition plate and a spring, the spring is fixed at the bottom of the vacuum box, and the partition plate is fixed on the spring.
3. The vacuum box gas sampler of claim 2, wherein: the telescopic mechanism further comprises a partition guide post, one end of the partition guide post is fixed at the bottom of the hollow box, and one end of the partition guide post penetrates through the partition.
4. The vacuum box gas sampler of claim 2, wherein: the detection point of the position switch group is positioned in the movable stroke of the partition board.
5. The vacuum box gas sampler according to any one of claims 1 to 4, wherein: the vacuum box is provided with a gas interface, and the gas interface is connected to a power device outside the vacuum box through a pipeline.
6. The vacuum box gas sampler according to any one of claims 1 to 4, wherein: the vacuum box is provided with an air bag interface, and the air bag interface is connected to an air bag through a pipeline.
7. The vacuum box gas sampler according to any one of claims 1 to 4, wherein: the switches of the position switch set may be mechanical switches or opto-electronic switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503899.3U CN210863288U (en) | 2019-09-10 | 2019-09-10 | Vacuum box gas sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503899.3U CN210863288U (en) | 2019-09-10 | 2019-09-10 | Vacuum box gas sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210863288U true CN210863288U (en) | 2020-06-26 |
Family
ID=71308385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921503899.3U Active CN210863288U (en) | 2019-09-10 | 2019-09-10 | Vacuum box gas sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210863288U (en) |
-
2019
- 2019-09-10 CN CN201921503899.3U patent/CN210863288U/en active Active
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