CN220473063U

CN220473063U - Sewage detection sampling device

Info

Publication number: CN220473063U
Application number: CN202322077826.5U
Authority: CN
Inventors: 周喜梅; 徐言山
Original assignee: Shanghai Jingxuan Industrial Co ltd
Current assignee: Shanghai Jingxuan Industrial Co ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-02-09
Anticipated expiration: 2033-08-03

Abstract

The sewage detection sampling device comprises a storage battery, an electromagnetic valve, a sampling cylinder, a pressure sensor and a prompting circuit; the inner side end of the sampling cylinder is divided into a plurality of sampling grids from top to bottom, the lower end of the sampling cylinder is provided with a balancing weight, each sampling grid is matched with two electromagnetic valves, and one end of each electromagnetic valve is respectively connected with a water inlet pipe at one side end of each sampling grid and a water outlet pipe at the other side end of each sampling grid; the upper end of the sampling tube is provided with a mooring rope, the pressure sensor is arranged outside the lower end of the sampling tube, and the storage battery and the prompting circuit are arranged in the element box and are electrically connected. When the water layer is reached by the sampling tube, the LED of the corresponding set of prompt circuit can emit electricity, so that the staff can open the electromagnetic valve power switch of the corresponding sampling grid according to the prompt, and the water in the water layer enters the corresponding sampling grid. The utility model discloses can once sample sewage in the different water layers, bring convenience for the staff from this, and correspondingly improved sampling efficiency.

Description

Sewage detection sampling device

Technical Field

The utility model relates to the technical field of sewage sampling equipment, in particular to a sewage detection sampling device.

Background

In environmental protection and other departments, for sewage sampling in a relevant area, a common mode is that sampling personnel sample the sewage in the field by using a sampling bottle mechanism. For example, patent numbers 202120500816.6 and patent names of China refer to the patent entitled "sewage sampling device", the content of the patent refers to the fact that the sewage sampling device capable of being replaced and reused is realized by the technical scheme of the application, after one sewage sample is collected, a clean sampler can be replaced in time, the replaced sampler is brought back to a laboratory for cleaning, the sampler can be reused, the structure of the sampler is simple, the practical value is high, and the monitoring requirement of sewage sampling can be met. The above patent shows that, although the comparison patent can meet the requirement of sewage sampling to a certain extent, the structure is limited, and the specific technical problems exist as well as the existing all sewage sampling mechanisms, and the specific technical problems are as follows. The sewage sampling device can only sample sewage with one water depth at a time, when the sewage in different water depths is required to be sampled, the sampling bottle is required to be adopted for sampling in different water layers for multiple times, so that inconvenience can be brought to staff, and the sampling efficiency is not beneficial to improvement. In summary, it is particularly necessary to provide a device that can conveniently sample sewage in a plurality of water layers at a time.

Disclosure of Invention

In order to overcome the defects of the prior sewage sampling device as described in the background due to the limitation of the structure, the utility model provides the sewage detection sampling device which can sample sewage in different water layers at one time by workers under the combined action of related mechanisms and circuits, thereby bringing convenience to the workers and correspondingly improving the sampling efficiency.

The technical scheme adopted for solving the technical problems is as follows:

the sewage detection sampling device comprises a storage battery, an electromagnetic valve, a sampling cylinder and a pressure sensor, and is characterized by also comprising a prompting circuit; the inner side end of the sampling cylinder is divided into a plurality of sampling grids from top to bottom, the lower end of the sampling cylinder is provided with a balancing weight, each sampling grid is matched with two electromagnetic valves, and one end of each electromagnetic valve is respectively connected with a water inlet pipe at one side end of each sampling grid and a water outlet pipe at the other side end of each sampling grid; the upper end of the sampling tube is provided with a mooring rope, the pressure sensor is arranged outside the lower end of the sampling tube, the storage battery and the prompting circuit are arranged in an element box, and the element box is arranged at the front end of the mooring rope; the signal output end of the pressure sensor is electrically connected with the signal input end of the multi-channel prompting circuit respectively.

Further, the solenoid valve is a normally closed spool solenoid valve.

Further, the prompting circuits are provided with a plurality of sets, each set of prompting circuit comprises an adjustable resistor, a resistor, an NPN triode and a light emitting diode which are electrically connected, one end of the adjustable resistor is connected with one end of the first resistor, one end of the second resistor, the other end of the first resistor is connected with the base electrode of the NPN triode, the collector electrode of the NPN triode is connected with one end of the third resistor, the other end of the third resistor is connected with the negative electrode of the light emitting diode, and the other end of the second resistor is connected with the emitter electrode of the NPN triode.

Further, the resistance values of the adjustable resistors of the sets of prompting circuits are different.

The utility model has the beneficial effects that: when the novel sampling is carried out, a sampling person slowly puts the sampling tube into water, and after each sampling tube reaches a water layer, the light emitting diode of the corresponding set of prompt circuit can emit electricity, so that the staff can open the electromagnetic valve power switch of the corresponding sampling grid according to the prompt, and the water in the water layer then enters the corresponding sampling grid. The utility model discloses can once sample sewage in the different water layers, bring convenience for the staff from this, and correspondingly improved sampling efficiency. Based on the above, the utility model has good application prospect.

Drawings

The utility model is further described below with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a circuit diagram of the present utility model.

Detailed Description

The sewage detection sampling device comprises a storage battery G1 (12V/10 Ah lithium storage battery), a charging socket CZ, a power switch, an electromagnetic valve, a sampling cylinder 1, a pressure sensor A2 and a prompt circuit 2, wherein the power switch is connected with the charging socket CZ; the sampling tube 1 is of a metal hollow structure, a plurality of isolation plates are welded at the inner side end of the sampling tube 1 from top to bottom, the sampling tube is divided into four independent sampling grids 4 by the plurality of isolation plates, a counterweight metal block 3 is welded at the bottommost end of the sampling tube 1, each sampling grid 4 is matched with two electromagnetic valves DC1 (DC 2, DC3 and DC 4), and one end of each electromagnetic valve DC1 (DC 2, DC3 and DC 4) is respectively connected with one end of a water inlet pipe 5 at the left side end and one end of a water outlet pipe 6 at the right side end of each sampling grid 4 through threads; the middle part is installed outside the upper end of sampling tube and is tied rope 7, and pressure sensor A2 is installed at the middle part outside the lower extreme of sampling tube 1 through the screw nut, battery G1, charging socket CZ, switch S1, S2, S3, S4, and prompt circuit 2 installs in element box 8, and element box 8 installs the front end at tying rope 7.

As shown in fig. 1 and 2, solenoid valves DC1 (DC 2, DC3, DC 4) are normally closed spool solenoid valves. The prompting circuits are four sets, the first set of prompting circuit comprises an adjustable resistor RP1, resistors R1, R2 and R3 which are connected through circuit board wiring, an NPN triode Q1 and a light emitting diode V1, one end of the adjustable resistor RP1 is connected with one end of a first resistor R2, one end of a second resistor R1, the other end of the first resistor R2 is connected with a base electrode of the NPN triode Q1, a collector electrode of the NPN triode Q1 is connected with one end of a third resistor R3, the other end of the third resistor R3 is connected with a cathode of the light emitting diode V1, and the other end of the second resistor R1 is connected with an emitter electrode of the NPN triode Q1. The second set of prompting circuit comprises an adjustable resistor RP2, resistors R4, R5 and R6, an NPN triode Q2 and a light emitting diode V2 which are connected through circuit board wiring, one end of the adjustable resistor RP2 is connected with one end of a first resistor R5, one end of a second resistor R4, the other end of the first resistor R5 is connected with a base electrode of the NPN triode Q2, a collector electrode of the NPN triode Q2 is connected with one end of a third resistor R6, the other end of the third resistor R6 is connected with a cathode of the light emitting diode V2, and the other end of the second resistor R4 is connected with an emitter electrode of the NPN triode Q2. The third set of prompting circuit comprises an adjustable resistor RP3, resistors R7, R8 and R9, an NPN triode Q3 and a light emitting diode V3 which are connected through circuit board wiring, one end of the adjustable resistor RP3 is connected with one end of a first resistor R8, one end of a second resistor R7, the other end of the first resistor R8 is connected with a base electrode of the NPN triode Q3, a collector electrode of the NPN triode Q3 is connected with one end of a third resistor R9, the other end of the third resistor R9 is connected with a cathode of the light emitting diode V3, and the other end of the second resistor R7 is connected with an emitter electrode of the NPN triode Q3. The fourth set of prompting circuit comprises an adjustable resistor RP4, resistors R10, R11 and R12, an NPN triode Q4 and a light emitting diode V4 which are connected through circuit board wiring, one end of the adjustable resistor RP4 is connected with one end of a first resistor R11, one end of a second resistor R10, the other end of the first resistor R11 is connected with a base electrode of the NPN triode Q4, a collector electrode of the NPN triode Q4 is connected with one end of a third resistor R12, the other end of the third resistor R12 is connected with a negative electrode of the light emitting diode V4, and the other end of the second resistor R10 is connected with an emitter electrode of the NPN triode Q4. The resistance values of the adjustable resistors RP1, RP2, RP3 and RP4 of the four sets of prompt circuits become larger in sequence. The handle of the adjustable resistor, the handle of the power switch and the jack of the charging socket are all positioned outside a plurality of openings at the upper end of the element box 8, and each handle side end of the adjustable resistor is marked with continuous numbers which represent different water depths. The two poles of the storage battery G1 and the two poles of the charging socket CZ (when the storage battery G1 is in no electricity, an external power charger plug can be inserted into the charging socket CZ to charge the storage battery G), the power input ends 1 and 2 pins of the pressure sensor A2, the positive power input ends of the light emitting diodes V1 (V2, V3 and V4) of the power input ends of the four-way prompt circuit, the emitting electrodes of the NPP triodes Q1 (Q2, Q3 and Q4), the power input ends of the four power switches S1, S2, S3 and S4 are connected through wires, the other ends of the signal output end 3 pin of the pressure sensor A2 and the signal input ends of the adjustable resistors RP1 (RP 2, RP3 and RP 4) of the four-way prompt circuit are respectively connected through wires, and the power output ends of the four power switches S1, S2, S3 and the power input ends of the electromagnetic valves DC1, DC2, DC3 and DC4 of the four sampling grids are respectively connected through wires. The luminous surfaces of the four light emitting diodes are positioned outside the four openings at the front end of the element box.

Fig. 1 and 2 show that, in the novel sampling, the sampler holds the mooring rope 7 to slowly put the sampling tube 1 into the water from the uppermost end of the water layer (the metal block 3 has a large weight, so the sampling tube 1 can slowly sink into the water). When the sampling tube enters water from top to bottom, the pressure of the water changes from small to large, and the 3 pin of the pressure sensor A2 outputs a pressure signal from small to large to the other end of the adjustable resistor RP1 (RP 2, RP3 and RP 4). In the first set of prompt circuit, when the sampling tube does not reach the depth of water set by a technician through the adjustable resistor RP1, the pressure signal output by the 3 pin of the pressure sensor A2 is divided by the adjustable resistor RP1 and the resistor R1, the voltage of the resistor R2 is reduced, the current is limited, the voltage enters the base electrode of the NPN triode Q1 and is lower than 0.7V, the NPN triode Q1 is cut off, and then the light-emitting diode V1 cannot emit electricity; when the sampling tube reaches the water depth set by a technician through the adjustable resistor RP1, the pressure signal output by the 3 pin of the pressure sensor A2 is divided by the adjustable resistor RP1 and the resistor R1, the voltage and the current of the resistor R2 are reduced, the voltage and the current of the resistor R2 enter the base electrode of the NPN triode Q1 to be higher than 0.7V, the conducting collector of the NPN triode Q1 outputs low level to enter the negative electrode power supply input end of the light emitting diode V1, then the light emitting diode V1 obtains electroluminescence to prompt the sampling tube to enter a corresponding water layer, and the worker can sample (at the moment, the sampling tube is stopped being thrown into the water through the mooring rope by the sampling tube, and the sampling tube is positioned in the corresponding water layer); the staff turns on the power switch S1, so that the electromagnetic valve DC1 at the two sides of the first sampling grid is powered on, the water in the water layer can enter one sampling grid at the upper end (the two electromagnetic valves DC1 are powered on, so that when the water enters the sampling grid, the air in the sampling grid can be discharged, and after 30 seconds, the power switch is turned off by the sampling staff to finish the sampling of the first sampling grid (as the resistance value of the adjustable resistors RP2, RP3 and RP4 is larger than RP1, the LEDs V2, V3 and V4 cannot be electrified to emit light).

In the second set of prompting circuits shown in fig. 1 and 2, when the sampling tube does not reach the water depth set by a technician through the adjustable resistor RP2, the pressure signal output by the 3 pin of the pressure sensor A2 is divided by the adjustable resistor RP2 and the resistor R4, the voltage is reduced and the current is limited by the resistor R5, and then the pressure signal enters the base electrode of the NPN triode Q2 to be lower than 0.7V, and the NPN triode Q2 is cut off, so that the light-emitting diode V2 cannot emit electricity; when the sampling tube reaches the water depth set by a technician through the adjustable resistor RP2, the pressure signal output by the 3 pin of the pressure sensor A2 is divided by the adjustable resistor RP2 and the resistor R4, the voltage and the current of the resistor R5 are reduced, the voltage and the current of the resistor R5 enter the base electrode of the NPN triode Q2 to be higher than 0.7V, the conducting collector of the NPN triode Q2 outputs low level to enter the negative power supply input end of the light emitting diode V2, then the light emitting diode V2 obtains electroluminescence to prompt the sampling tube to enter a corresponding water layer, and the worker can sample (at the moment, the sampling tube is stopped being thrown into the water through the mooring rope and the sampling tube is positioned in the corresponding water layer); the staff turns on the power switch S2, so that the electromagnetic valve DC2 at the two sides of the second sampling grid is turned on, and water in the water layer enters the second sampling grid at the upper end; after about 30 seconds of interval, the sampling personnel turns off the power switch to complete the sampling of the second sampling grid (the resistance value of the adjustable resistors RP3 and RP4 is larger than RP2, so the LEDs V3 and V4 cannot emit electricity). In the third set of prompting circuit, when the sampling tube does not reach the water depth set by a technician through the adjustable resistor RP3, the pressure signal output by the 3 pin of the pressure sensor A3 is divided by the adjustable resistor RP3 and the resistor R7, the voltage of the resistor R8 is reduced, the current is limited, the voltage enters the base electrode of the NPN triode Q3 and is lower than 0.7V, the NPN triode Q3 is cut off, and then the light-emitting diode V3 cannot emit electricity; when the sampling tube reaches the water depth set by a technician through the adjustable resistor RP3, the pressure signal output by the 3 pin of the pressure sensor A2 is divided by the adjustable resistor RP3 and the resistor R7, the voltage and the current of the resistor R8 are reduced, the voltage and the current of the resistor R8 enter the base electrode of the NPN triode Q3 to be higher than 0.7V, the conducting collector of the NPN triode Q3 outputs low level to enter the negative electrode power supply input end of the light emitting diode V3, then the light emitting diode V3 obtains electroluminescence to prompt the sampling tube to enter a corresponding water layer, and the worker can sample (at the moment, the sampling tube is stopped being thrown into the water through the mooring rope and the sampling tube is positioned in the corresponding water layer); the staff turns on the power switch S3, so that the electromagnetic valve DC3 at the two sides of the third sampling grid is turned on, and water in the water layer enters the third sampling grid; after about 30 seconds of interval, the sampling personnel turns off the power switch to complete the sampling of the third sampling cell (the resistance value of the adjustable resistor RP4 is larger than RP3, so that the LED V4 cannot emit electricity). In the fourth set of prompting circuit, when the sampling tube does not reach the water depth set by a technician through the adjustable resistor RP4, the pressure signal output by the 3 pin of the pressure sensor A2 is divided by the adjustable resistor RP4 and the resistor R10, the voltage and the current of the resistor R11 are reduced, the voltage and the current enter the base electrode of the NPN triode Q4 to be lower than 0.7V, the NPN triode Q4 is cut off, and then the light-emitting diode V4 cannot emit electricity; when the sampling tube reaches the water depth set by a technician through the adjustable resistor RP4, the pressure signal output by the 3 pin of the pressure sensor A2 is divided by the adjustable resistor RP4 and the resistor R10, the voltage and the current of the resistor R11 are reduced, the voltage and the current of the resistor R11 enter the base electrode of the NPN triode Q4 to be higher than 0.7V, the conducting collector of the NPN triode Q4 outputs low level to enter the negative electrode power supply input end of the light emitting diode V4, then the light emitting diode V4 obtains electroluminescence to prompt the sampling tube to enter a corresponding water layer, and the worker can sample (at the moment, the sampling tube is stopped being thrown into the water through the mooring rope and the sampling tube is positioned in the corresponding water layer); the staff turns on the power switch S4, so that the electromagnetic valve DC4 at the two sides of the fourth sampling grid is turned on, and water in the water layer enters the fourth sampling grid; after about 30 seconds of interval, the sampling personnel turns off the power switch to finish the sampling of the fourth sampling grid. After the sampling is finished, sampling personnel pull the sampling cylinder out of the water surface through the mooring rope to complete all sampling work (the front end of the mooring rope can be connected with a telescopic rod, so that the sampling personnel can conveniently sample relatively far water). The power switches S1, S2, S3 and S4 are respectively turned on by subsequent staff, the solenoid valves DC1, DC2, DC3 and DC4 are respectively turned on by the power valve cores, and thus water in the first, second, third and fourth sampling grids can flow out into a plurality of sampling bottles respectively. Before the novel staff samples, adjust adjustable resistance RP1, RP2, RP3, RP 4's different resistance value respectively, can set for under the different sampling depth of water conditions, solenoid valve DC1 or DC2, DC3 gets the electricity, adjustable resistance's resistance value adjusts to be small to the hour partial pressure relatively, then follow-up when corresponding shallow water layer, the voltage signal that water pressure sensor output is low relatively, emitting diode V1 or V2, V3, V4 will get the electricity and give out light, adjustable resistance's resistance value adjusts to be big to the partial pressure relatively big time, then follow-up when the voltage signal that corresponding dark water layer, water pressure sensor output is big relatively, emitting diode V1 or V2, V3, V4 can get the electricity and give out light (this embodiment gathers water layer water sample of 0.5 meter, 1 meter, 1.5 meter, 2 meter respectively). The light emitting diodes V1 or V2, V3, V4 are red light emitting diodes; the resistance values of the resistors R3, R6, R9 and R12 are 1.8K (current-limiting and voltage-reducing effects); the resistance values of the resistors R2, R5, R8 and R11 are 47K; the resistance values of the resistors R1, R4, R7 and R10 are 10K; the adjustable resistors RP1, RP2, RP3 and RP4 are 470K (respectively adjusted to 13K, 19.5K, 26K and 32.5K); the pressure sensor A2 is a finished product of a water pressure sensor of model KE-240, and is provided with two power supply input ends and a signal output end, wherein the signal output end can output a voltage signal with 0-5V according to different water pressures during operation; the model numbers of NPN triodes Q1, Q2, Q3 and Q4 are 9013.

It should be understood by those skilled in the art that although the present disclosure describes embodiments, the embodiments do not include only a single embodiment, and the description is for clarity only, those skilled in the art should consider the disclosure as a whole, and the embodiments in the examples may be appropriately combined to form other embodiments that can be understood by those skilled in the art, and the scope of the present disclosure is defined by the claims.

Claims

1. The sewage detection sampling device comprises a storage battery, an electromagnetic valve, a sampling cylinder and a pressure sensor, and is characterized by also comprising a prompting circuit; the inner side end of the sampling cylinder is divided into a plurality of sampling grids from top to bottom, the lower end of the sampling cylinder is provided with a balancing weight, each sampling grid is matched with two electromagnetic valves, and one end of each electromagnetic valve is respectively connected with a water inlet pipe at one side end of each sampling grid and a water outlet pipe at the other side end of each sampling grid; the upper end of the sampling tube is provided with a mooring rope, the pressure sensor is arranged outside the lower end of the sampling tube, the storage battery and the prompting circuit are arranged in an element box, and the element box is arranged at the front end of the mooring rope; the signal output end of the pressure sensor is electrically connected with the signal input end of the multi-channel prompting circuit respectively.

2. The wastewater treatment sampling device of claim 1, wherein the solenoid valve is a normally closed spool solenoid valve.

3. The sewage detection sampling device according to claim 1, wherein the prompting circuits comprise a plurality of sets, each set of prompting circuit comprises an adjustable resistor, a resistor, an NPN triode and a light emitting diode which are electrically connected, one end of the adjustable resistor is connected with one end of the first resistor, one end of the second resistor is connected with one end of the second resistor, the other end of the first resistor is connected with a base electrode of the NPN triode, a collector electrode of the NPN triode is connected with one end of a third resistor, the other end of the third resistor is connected with a negative electrode of the light emitting diode, and the other end of the second resistor is connected with an emitter electrode of the NPN triode.

4. The wastewater detection sampling device of claim 1, wherein the resistances of the adjustable resistors of the plurality of sets of prompting circuits are different.