CN211085815U - Negative pressure type shallow water level water sample collector - Google Patents
Negative pressure type shallow water level water sample collector Download PDFInfo
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- CN211085815U CN211085815U CN201921959665.XU CN201921959665U CN211085815U CN 211085815 U CN211085815 U CN 211085815U CN 201921959665 U CN201921959665 U CN 201921959665U CN 211085815 U CN211085815 U CN 211085815U
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Abstract
The utility model relates to a water quality sampler, concretely relates to shallow water level water sample collector of negative pressure formula. The collector is detachable and comprises a negative pressure device, a water collecting device and a water blocking device. The negative pressure device comprises an air cylinder, a push-pull piston, an air one-way valve I, an air one-way valve II, a vent pipe I and a connector I, and the water collecting device comprises a sampling bottle and a bottle plug; the water blocking device comprises a horizontal semicircular conical bottle, a water inlet pipe and a grid mesh; the negative pressure device and the water collecting device are connected with the joint I and the joint II through connecting pipes; the water collecting device and the water choking device are connected with the joint III and the joint IV through a siphon pipe. The utility model discloses can effectual solution surface water sample sampling process in, because the site conditions of low water level or low discharge, ordinary wide mouthful or large capacity water sampler is difficult to carry out the problem that the water sample was gathered. The utility model discloses simple structure, assembly and disassembly is convenient, and the field sampling of being convenient for is carried.
Description
Technical Field
The utility model relates to a water quality sampler, concretely relates to shallow water level water sample collector of negative pressure formula.
Background
The existing water quality sampling equipment mainly aims at large-water-surface and large-flow surface water such as rivers, lakes, water outlets and the like to realize on-site collection of water samples, and generally has the characteristic of large-caliber and high-water-level water intake. For a water body with small water flow and low water level, the existing sampling equipment cannot collect a water sample or has high water collection difficulty, and needs to collect the water sample for many times; and the water body and the bottom sediment are easily disturbed, so that the water body and the bottom sediment in different water layers pollute the water sample to be taken, and the accuracy and the representativeness of the water quality detection result are influenced. In addition, to some blow off pipes or drain, influenced by the law of producing sewage, often there is the little characteristics of partial period sewage volume discharge, if reach the sampling point in this period, then can't accomplish normal sample, under the condition that can't guarantee and estimate the sample time, the normal completion of sample task is difficult to guarantee to current quality of water sampling equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the above problems, the utility model provides a simple structure, use and convenient to carry realize the water sample collection system to the water of low discharge, low water level. The specific technical scheme is as follows:
a negative pressure type shallow water level water sample collector comprises: comprises a negative pressure device, a water collecting device and a water stopping device;
the negative pressure device comprises an air cylinder, a push-pull piston, an air one-way valve I, an air one-way valve II, a vent pipe I and a connector I, wherein the air one-way valve I and the air one-way valve II are arranged on the side wall of the air cylinder and are lower than the push-pull piston in position, the air one-way valve I enables air to flow to the outside from the air cylinder, the air one-way valve II enables air to flow into the air cylinder from the outside, and the outer side of the air one-way valve II is connected with the vent pipe I and the connector I;
the water collecting device comprises a sampling bottle and a bottle plug; the outer side ends of the vent pipe II and the short vent pipe III are respectively provided with a joint II and a joint III;
the water blocking device comprises a horizontal semicircular conical bottle, a water inlet pipe and a grid mesh, wherein an opening is formed in the side wall of the horizontal semicircular conical bottle, the water inlet pipe is inserted into the bottom of the bottle from the opening, a groove is formed in the bottom end of the water inlet pipe and is wrapped by the grid mesh, a connector IV is arranged at the outer side end of the water inlet pipe, and a sampling water inlet is formed in the other end of the bottom of the horizontal semicircular conical bottle;
the negative pressure device and the water collecting device are connected with a joint I and a joint II through connecting pipes; and the water collecting device and the water choking device are connected with a joint III and a joint IV through a siphon.
Further, the connecting pipe is a soft pipe.
Furthermore, the diameter of one end side of the water inlet of the horizontal semicircular conical flask is smaller than that of one end side of the water inlet pipe, the diameter is in a shape of a half horn, and the bottom of the horizontal semicircular conical flask is a horizontal plane.
Furthermore, all joints and pipe joints are in sealed connection.
Furthermore, the water collection device further comprises a horizontal fixing support, and the water collection device and the water choking device are fixed on the same horizontal position by the horizontal fixing support.
Furthermore, a handle is arranged on the push-pull piston.
Furthermore, the depth of the air pipe of the water collecting device does not exceed the depth corresponding to the volume of the required water sample.
When a water sample is collected, the water collecting device and the water stopping device are fixed and then are placed into a water body, the water sample to be collected is stopped at the bottom of the bottle by the water inlet of the horizontal semicircular conical bottle and submerges the bottom of the water inlet pipe and the groove, so that a closed integrated space is formed in the water collecting device and the water stopping device; the push-pull piston of the negative pressure device is pulled upwards to form negative pressure, so that the water collecting device and the water retaining device form a siphon effect, and a water sample to be taken flows into a sampling bottle of the water collecting device through the water inlet pipe and the siphon pipe; through the control of the air check valve, the air pressure in the water collecting equipment is stably not higher than the external atmospheric pressure, and the air is prevented from flowing back to the water blocking device to cause the disturbance of a water sample to be taken.
The air cylinder and the push-pull piston of the negative pressure device are in closed contact, can move up and down and can move up and down through the push-pull piston; the movement of the push-pull piston may be accomplished manually or by mechanical means.
The air one-way valve I of the negative pressure device enables air in the air cylinder of the negative pressure device to be communicated with outside air in a one-way mode, namely the air cylinder of the negative pressure device flows to the outside; the air one-way valve II of the negative pressure device enables the air in the air cylinder of the negative pressure device to be communicated with the air of the water collecting device in a one-way mode, namely the air flows to the air cylinder of the negative pressure device from the water collecting device.
The utility model connects the breather pipe of the negative pressure device and the connecting pipe in a sealing way through the joint I; the joint II is connected with a connecting pipe in a sealing way with a breather pipe I of the water collecting device; and the siphon pipe of the water collecting device and the water inlet pipe of the water choking device are hermetically connected by the joint III and the joint IV. The connecting pipe mainly provides enough long connecting distance for the negative pressure device and the water collecting device, namely provides a certain distance for manual control and a water sample collecting site.
The front end of the horizontal semicircular conical bottle of the water stopping device of the utility model is small in caliber, which is convenient for water flow to flow in; the rear end is large-caliber, so that the water sample to be taken is convenient to be accumulated, and the water sample is prevented from being disturbed.
The horizontal semicircular conical flask, the water inlet pipe and the grating of the water stopping device are integrated or hermetically connected; the bottom of the horizontal semicircular conical flask is horizontal, so that the field stability is convenient, and the bottom of the water inlet pipe is provided with a slot, so that water flow can conveniently enter; the water inlet is provided with a grid to prevent sludge and the like from entering the water inlet pipe. The water collecting device and the water stopping device are fixed into a whole.
The utility model discloses can effectual solution surface water sample sampling process in, because the site conditions of low water level or low discharge, ordinary wide mouthful or large capacity water sampler is difficult to carry out the problem that the water sample was gathered. The utility model discloses simple structure, assembly and disassembly is convenient, and the field sampling of being convenient for is carried.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the water stopping device of the present invention;
reference numerals
1-an air cylinder; 2-push-pull piston; 3-air check valve I; 4-air check valve II; 5-a handle; 6-a breather pipe I; 7-linker I; 8-linker II; 9-linker III; 10-a bottle stopper; 11-a vent pipe II; 12-a vent pipe iii; 13-a sampling bottle; 14-linker IV; 15-water inlet pipe; 16-horizontal half-round erlenmeyer flask; 17-a grid mesh; 18-a water inlet; 19-a connecting tube; 20-siphon pipe, 21-horizontal fixed support.
Detailed Description
The invention will be further explained with reference to the accompanying drawings 1-2 of the specification:
the utility model provides a shallow water level water sample collector of negative pressure formula which characterized in that: comprises a negative pressure device, a water collecting device and a water stopping device;
the negative pressure device comprises an air cylinder 1, a push-pull piston 2, an air one-way valve I3, an air one-way valve II 4, a vent pipe I6 and a connector I7, wherein the air one-way valve I3 and the air one-way valve II 4 are arranged on the side wall of the air cylinder 1, the positions of the air one-way valve I3 and the air one-way valve II 4 are lower than that of the push-pull piston 2, the air one-way valve I3 enables air to flow to the outside from the air cylinder 1, the air one-way valve II 4 enables air to flow to the inside of the air cylinder 1 from the outside, and the outer side of the air one-;
the water collecting device comprises a sampling bottle 13 and a bottle stopper 10; the bottle stopper 10 is provided with a vent pipe II 11 and a vent pipe III 12, and the outer ends of the vent pipe II 11 and the vent pipe III 12 are respectively provided with a joint II 8 and a joint III 9;
the water blocking device comprises a horizontal semicircular conical flask 16, a water inlet pipe 15 and a grid mesh 17, wherein an opening is formed in the side wall of the horizontal semicircular conical flask 16, the water inlet pipe 15 is inserted into the bottom of the flask from the opening, a groove is formed in the bottom end of the water inlet pipe 15 and is wrapped by the grid mesh 17, a connector IV 14 is arranged at the outer side end of the water inlet pipe 15, and a sampling water inlet 18 is formed in the other end of the bottom of the horizontal semicircular conical flask 16;
the negative pressure device and the water collecting device are connected with a joint I7 and a joint II 8 through a connecting pipe 19; the water collecting device and the water choking device are connected with a joint III 9 and a joint IV 14 through a siphon pipe 20.
The connecting pipe 19 is a flexible pipe. The diameter of one end side of a water inlet of the horizontal semicircular conical flask 16 is smaller than that of one end side of the water inlet pipe 15, the diameter is half of a horn shape, and the bottom of the horizontal semicircular conical flask is a horizontal plane. All joints and pipe joints are hermetically connected. The water collection device further comprises a horizontal fixing support 21, and the water collection device and the water blocking device are fixed on the same horizontal position by the horizontal fixing support. The push-pull piston 2 is provided with a handle 5.
When the water collecting device is used, the water collecting device and the water stopping device which are fixed into a whole are placed in a water sample to be taken site, so that the water sample to be taken enters the rear end through the small-caliber front end of the horizontal semicircular conical bottle and is stopped. When the water level of the water body submerges the bottom of the water inlet pipe and the notch opening, the negative pressure device, the water collecting device and the water stopping device form a sealed environment.
Pushing the push-pull piston of the negative pressure device downwards to enable the air in the air cylinder of the negative pressure device to be emptied to the outside through the air one-way valve 1, pulling the push-pull piston of the negative pressure device upwards to enable the air cylinder of the negative pressure device to form negative pressure, enabling the siphon pipe of the water collecting device and the water inlet pipe of the water retaining device to form siphon effect, and enabling a water sample to be automatically poured into the water sample bottle of the water collecting device from the rear end of the horizontal semicircular conical bottle of the water retaining device through the water inlet pipe. The steps are repeated until enough water sample is collected in the water sample bottle of the water collecting device.
Claims (6)
1. The utility model provides a shallow water level water sample collector of negative pressure formula which characterized in that: comprises a negative pressure device, a water collecting device and a water stopping device;
the negative pressure device comprises an air cylinder (1), a push-pull piston (2), an air one-way valve I (3), an air one-way valve II (4), a vent pipe I (6) and a connector I (7), wherein the air one-way valve I (3) and the air one-way valve II (4) are arranged on the side wall of the air cylinder (1) and are lower than the push-pull piston (2) in positions, the air one-way valve I (3) enables air to flow from the air cylinder (1) to the outside, the air one-way valve II (4) enables air to flow from the outside to the air cylinder (1), and the outer side of the air one-way valve II (4) is connected with the vent pipe I (6) and the connector I (7);
the water collecting device comprises a sampling bottle (13) and a bottle stopper (10); a vent pipe II (11) and a short vent pipe III (12) are arranged on the bottle stopper (10), and the outer side ends of the vent pipe II (11) and the vent pipe III (12) are respectively provided with a joint II (8) and a joint III (9);
the water blocking device comprises a horizontal semicircular conical bottle (16), a water inlet pipe (15) and a grid mesh (17), wherein an opening is formed in the side wall of the horizontal semicircular conical bottle (16), the water inlet pipe (15) is inserted into the opening, a notch is formed in the bottom end of the water inlet pipe (15), the notch is wrapped by the grid mesh (17), a connector IV (14) is arranged at the outer side end of the water inlet pipe (15), and a sampling water inlet (18) is formed in the other end of the bottom of the horizontal semicircular conical bottle (16);
the negative pressure device and the water collecting device are connected with a joint I (7) and a joint II (8) through a connecting pipe (19); the water collecting device and the water choking device are connected with a joint III (9) and a joint IV (14) through a siphon (20).
2. The negative pressure type shallow water level water sampler according to claim 1, characterized in that: the connecting pipe (19) is a soft pipe.
3. The negative pressure type shallow water level water sampler according to claim 1, characterized in that: the diameter of one end side of a water inlet of the horizontal semicircular conical flask (16) is smaller than that of one end side of the water inlet pipe (15), the water inlet is in a half horn shape, and the bottom of the water inlet is a horizontal plane.
4. The negative pressure type shallow water level water sampler according to claim 1, characterized in that: all joints and pipe joints are hermetically connected.
5. The negative pressure type shallow water level water sampler according to claim 1, characterized in that: the water collection device further comprises a horizontal fixing support (21), and the water collection device and the water blocking device are fixed on the same horizontal position by the horizontal fixing support.
6. The negative pressure type shallow water level water sampler according to claim 1, characterized in that: the push-pull piston (2) is provided with a handle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921959665.XU CN211085815U (en) | 2019-11-14 | 2019-11-14 | Negative pressure type shallow water level water sample collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921959665.XU CN211085815U (en) | 2019-11-14 | 2019-11-14 | Negative pressure type shallow water level water sample collector |
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| Publication Number | Publication Date |
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| CN211085815U true CN211085815U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921959665.XU Active CN211085815U (en) | 2019-11-14 | 2019-11-14 | Negative pressure type shallow water level water sample collector |
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| CN (1) | CN211085815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284815A (en) * | 2020-09-08 | 2021-01-29 | 中国水利水电科学研究院 | Large-capacity water sampler |
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2019
- 2019-11-14 CN CN201921959665.XU patent/CN211085815U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284815A (en) * | 2020-09-08 | 2021-01-29 | 中国水利水电科学研究院 | Large-capacity water sampler |
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