CN215058060U - Pneumatic sampling pump - Google Patents
Pneumatic sampling pump Download PDFInfo
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- CN215058060U CN215058060U CN202121368454.6U CN202121368454U CN215058060U CN 215058060 U CN215058060 U CN 215058060U CN 202121368454 U CN202121368454 U CN 202121368454U CN 215058060 U CN215058060 U CN 215058060U
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- air inlet
- volume cavity
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- exhaust
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Abstract
The utility model relates to a sampling device especially relates to a pneumatic sampling pump. The utility model discloses can be used to the gas sampling in high gas mine and the explosive environment. The utility model comprises a volume cavity; the diaphragm is hermetically connected to the opening side of the volume cavity, the driving mechanism is used for driving the diaphragm to reciprocate towards the side of the volume cavity, and the air inlet mechanism and the air outlet mechanism are hermetically connected with the volume cavity; the air inlet mechanism comprises an air inlet arranged on the volume cavity; the first elastic sealing mechanism is fixed in the volume cavity and used for controlling the opening and closing of the air inlet; the air inlet channel is fixed on the outer side of the volume cavity and is hermetically connected with the air inlet; the exhaust mechanism comprises an exhaust port arranged on the volume cavity; the second elastic sealing mechanism is fixed outside the volume cavity and used for controlling the opening and closing of the exhaust port; and the exhaust channel is fixed on the outer side of the volume cavity and is hermetically connected with the exhaust port.
Description
Technical Field
The utility model relates to a sampling device especially relates to a pneumatic sampling pump.
Background
In high gas mine and explosive environment, the explosion-proof grade requirement for working equipment is higher, and when sampling and detecting gas components in high gas and explosive environment, a hand-held balloon is generally adopted for sampling to reduce explosion risks, but the sampling is easy to cause slower sampling, and the measurement result is influenced.
The pneumatic diaphragm pump is a pump body which is used for sucking and discharging liquid by changing the volume of a working chamber by means of reciprocating fluctuation of a diaphragm, and the explosion risk is greatly reduced because an air source is adopted as a power source.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a pneumatic sampling pump, can be used to the gas sampling in high gas mine and the explosive environment.
The pneumatic sampling pump of the utility model comprises a volume cavity, one side of which is provided with an opening; the diaphragm is hermetically connected to the opening side of the volume cavity, the driving mechanism is used for driving the diaphragm to reciprocate towards the side of the volume cavity, and the air inlet mechanism and the air outlet mechanism are hermetically connected with the volume cavity; the air inlet mechanism comprises an air inlet arranged on the volume cavity; the first elastic sealing mechanism is fixed in the volume cavity and used for controlling the opening and closing of the air inlet; the air inlet channel is fixed on the outer side of the volume cavity and is hermetically connected with the air inlet; the exhaust mechanism comprises an exhaust port arranged on the volume cavity; the second elastic sealing mechanism is fixed outside the volume cavity and used for controlling the opening and closing of the exhaust port; and the exhaust channel is fixed on the outer side of the volume cavity and is hermetically connected with the exhaust port.
The driving mechanism is an air valve body of the pneumatic diaphragm pump, the output end of the air valve body is fixedly connected with the diaphragm, when the air valve body drives the diaphragm pump to be far away from the volume cavity, negative pressure is generated in the volume cavity, air is sucked, the first elastic sealing mechanism is separated from the air inlet, and the air reaches the volume cavity through the air inlet channel and the air inlet; when the air valve body drives the diaphragm to move towards the volume cavity side, positive pressure is generated in the volume cavity, air is discharged, the second elastic sealing mechanism is separated from the air outlet, and the air in the volume cavity is discharged through the air outlet and the air exhaust channel.
Preferably, the first elastic sealing mechanism comprises a first elastic sheet pressed on the air inlet; the fixing piece is fixed at one end of the first elastic piece and used for keeping the first elastic piece and the air inlet in press fit; the second elastic sealing mechanism comprises a second elastic sheet pressed on the exhaust port; and the fixing piece is fixed at one end of the second elastic sheet and used for keeping the second elastic sheet and the exhaust port pressed together.
Because the first elastic sheet is positioned in the volume cavity and the second elastic sheet is positioned outside the volume cavity, when gas is sucked in, the first elastic sheet is separated from the gas inlet, and the gas reaches the volume cavity through the gas inlet channel and the gas inlet; when the gas is discharged, the second elastic sheet is separated from the gas outlet, and the gas in the volume cavity is discharged through the gas outlet and the gas discharge channel.
Preferably, a limiting plate is fixed on the outer side of the second elastic sheet.
When gas outgoing, pressure is big when handing over and inhales, for the elasticity deformation that avoids the second shell fragment to produce too big influence its and the leakproofness of gas vent, can fix the limiting plate in the second shell fragment outside.
Preferably, the fixing member is a screw.
Preferably, the top of the air inlet channel is provided with an air inlet chamber, the air inlet chamber is fixed on the outer wall of the volume cavity and communicated with the air inlet, the top of the air outlet channel is provided with an air outlet chamber, and the air outlet chamber is fixed on the outer wall of the volume cavity and communicated with the air outlet.
The inlet and outlet chambers provide cushioning for gas entering and exiting the volume, respectively.
Preferably, the bottom of the air inlet channel and the bottom of the air outlet channel are both fixed with support legs.
The utility model has the advantages that: the first elastic sealing mechanism and the second elastic sealing mechanism are arranged and matched with the diaphragm to reciprocate, so that gas can be conveyed, and the driving mechanism adopts a power source as a gas source, so that the explosion risk is effectively reduced, and the gas sampling device can be used for gas sampling in high gas mines and explosive environments; elastic sealing mechanism adopts the shell fragment structure, simple structure, but automatic re-setting produces the effort under the same pressure condition bigger, and sealed effect is better.
Drawings
FIG. 1 is a schematic illustration of an explosive structure according to one embodiment;
FIG. 2 is a top view of an embodiment;
FIG. 3 is a schematic sectional view of the portion A-A in FIG. 2;
FIG. 4 is a schematic sectional view of the portion B-B in FIG. 2;
FIG. 5 is a schematic view of a volume chamber connection configuration;
in the figure: 1. a volume chamber; 2. a diaphragm; 3. a drive mechanism; 4. an air inlet; 5. an air intake passage; 6. an exhaust port; 7. an exhaust passage; 8. a first spring plate; 9. a fixing member; 10. a second elastic sheet; 11. a limiting plate; 12. an air intake chamber; 13. an exhaust chamber; 14. and (3) a support leg.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-5, the pneumatic sampling pump of the present invention comprises a volume chamber 1, one side of which is provided with an opening; a diaphragm 2 hermetically connected to the opening side of the volume chamber; a driving mechanism 3 for driving the diaphragm 2 to reciprocate toward the volume chamber 1, and an air inlet mechanism and an air outlet mechanism hermetically connected with the volume chamber 1; the air inlet mechanism comprises an air inlet 4 arranged on the volume cavity 1; the first elastic sealing mechanism is fixed in the volume cavity 1 and used for controlling the opening and closing of the air inlet 4; the air inlet channel 5 is fixed on the outer side of the volume cavity 1 and is hermetically connected with the air inlet 4; the exhaust mechanism comprises an exhaust port 6 arranged on the volume cavity 1; the second elastic sealing mechanism is fixed outside the volume cavity 1 and used for controlling the opening and closing of the exhaust port 6; and an exhaust passage 7 fixed outside the volume chamber 1 and hermetically connected to the exhaust port 6. The first elastic sealing mechanism comprises a first elastic sheet 8 pressed on the air inlet 4; the fixing piece 9 is fixed at one end of the first elastic piece 8 and used for keeping the first elastic piece 8 and the air inlet 4 pressed together; the second elastic sealing mechanism comprises a second elastic sheet 10 pressed on the exhaust port 6; and the fixing piece 9 is fixed at one end of the second elastic piece 10 and is used for keeping the second elastic piece 10 and the exhaust port 6 pressed together. And a limiting plate 11 is fixed on the outer side of the second elastic sheet 10. The fixing member 9 is a screw. The top of the air inlet channel 5 is provided with an air inlet chamber 12, the air inlet chamber 12 is fixed on the outer wall of the volume cavity 1 and communicated with the air inlet 4, the top of the air outlet channel 7 is provided with an air outlet chamber 13, and the air outlet chamber 13 is fixed on the outer wall of the volume cavity 1 and communicated with the air outlet 6. The bottoms of the air inlet channel 5 and the air outlet channel 7 are both fixed with supporting legs 14.
In this embodiment, actuating mechanism chooses the air valve body of two effect pneumatic diaphragm pumps for use, and two output and diaphragm fixed connection of air valve body, during gaseous exhaust, it is big when pressure is handed over and is inhaled, for the elasticity deformation that avoids the second shell fragment to produce is too big influences its and the leakproofness of gas vent, can fix the limiting plate in the second shell fragment outside. The fixing piece adopts a screw to fix one end of the first elastic sheet and one end of the second elastic sheet on the side wall of the volume cavity. The inlet and outlet chambers may provide cushioning for gas entering and exiting the volume chamber, respectively.
When the air valve body drives the diaphragm pump to be far away from the volume cavity, negative pressure is generated in the volume cavity, air is sucked in, one end of the first elastic sheet is separated from the air inlet, and the air reaches the volume cavity through the air inlet channel and the air inlet; when the air valve body drives the diaphragm to move towards the side of the volume cavity, positive pressure is generated in the volume cavity, air is discharged, one end of the second elastic sheet is separated from the air outlet, and the air in the volume cavity is discharged through the air outlet and the air exhaust channel, so that the circulation is realized, and the air is conveyed.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (6)
1. A pneumatic sampling pump comprises a volume cavity (1), one side of which is provided with an opening; the diaphragm (2) of airtight connection in volume chamber opening side and be used for driving diaphragm (2) are to the actuating mechanism (3) of volume chamber (1) side reciprocating motion, its characterized in that: the device also comprises an air inlet mechanism and an air outlet mechanism which are hermetically connected with the volume cavity (1);
the air inlet mechanism comprises an air inlet pipe and an air outlet pipe,
an air inlet (4) arranged on the volume cavity (1);
the first elastic sealing mechanism is fixed in the volume cavity (1) and used for controlling the opening and closing of the air inlet (4);
the air inlet channel (5) is fixed on the outer side of the volume cavity (1) and is hermetically connected with the air inlet (4);
the air exhaust mechanism comprises a plurality of air exhaust mechanisms,
an exhaust port (6) opened on the volume cavity (1);
the second elastic sealing mechanism is fixed outside the volume cavity (1) and is used for controlling the opening and closing of the exhaust port (6);
and the exhaust channel (7) is fixed on the outer side of the volume cavity (1) and is hermetically connected with the exhaust port (6).
2. The pneumatic sampling pump of claim 1, wherein:
the first resilient sealing mechanism may comprise a first resilient sealing member,
a first elastic sheet (8) pressed on the air inlet (4);
the fixing piece (9) is fixed at one end of the first elastic piece (8) and used for keeping the first elastic piece (8) and the air inlet (4) pressed together;
the second resilient sealing mechanism may comprise a second resilient sealing mechanism,
a second elastic sheet (10) pressed on the exhaust port (6);
and the fixing piece (9) is fixed at one end of the second elastic sheet (10) and is used for keeping the second elastic sheet (10) and the exhaust port (6) pressed together.
3. The pneumatic sampling pump of claim 2, wherein: and a limiting plate (11) is fixed on the outer side of the second elastic sheet (10).
4. The pneumatic sampling pump of claim 2, wherein: the fixing piece (9) is a screw.
5. A pneumatic sampling pump according to claim 1 or 2, wherein: intake passage (5) top is equipped with inlet chamber (12), inlet chamber (12) be fixed in volume chamber (1) outer wall and with air inlet (4) intercommunication, exhaust passage (7) top is equipped with exhaust chamber (13), exhaust chamber (13) be fixed in volume chamber (1) outer wall and with exhaust port (6) intercommunication.
6. The pneumatic sampling pump of claim 1, wherein: and supporting legs (14) are fixed at the bottoms of the air inlet channel (5) and the air outlet channel (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368454.6U CN215058060U (en) | 2021-06-18 | 2021-06-18 | Pneumatic sampling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368454.6U CN215058060U (en) | 2021-06-18 | 2021-06-18 | Pneumatic sampling pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215058060U true CN215058060U (en) | 2021-12-07 |
Family
ID=79200500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121368454.6U Active CN215058060U (en) | 2021-06-18 | 2021-06-18 | Pneumatic sampling pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215058060U (en) |
-
2021
- 2021-06-18 CN CN202121368454.6U patent/CN215058060U/en active Active
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