Quantitative filler for sampling environmental monitoring wastewater

Abstract

The utility model relates to the technical field of sampling devices, and discloses a quantitative filler for sampling environmental monitoring waste water, which comprises a frame body, a quantitative cylinder and a storage cylinder are respectively arranged on the frame body, the quantitative cylinder and the storage cylinder are communicated through a communication pipeline, a one-way valve is arranged on the communication pipeline, and the one-way valve is communicated with the storage cylinder. A liquid outlet pipeline for quantitatively outputting liquid outwards is arranged on one side of the quantitative barrel, a water inlet pipeline is arranged on one side of the storage barrel, the upper portion of the quantitative barrel is open, and a supporting ring is arranged on the outer edge of the upper end of the quantitative barrel; a telescopic rod extending into the quantitative cylinder is downwards arranged above the frame body, and a piston sliding in the quantitative cylinder is arranged below the telescopic rod; a plurality of spray heads are annularly arranged on the supporting ring, and the tail parts of the plurality of spray heads penetrate through the supporting ring and are communicated with the interior of the annular pipeline. According to the piston cleaning device, the nozzle can be conveniently opened, cleaning water is sprayed to the surface of the piston, and sewage residues on the outer wall and the bottom of the piston can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a quantitative filler for environmental monitoring wastewater sampling. Background Art

[0002] Environmental monitoring includes water quality monitoring, air monitoring and geological monitoring. During the experiment, in order to ensure the consistency and comparability of the data, water samples need to be quantitatively added.

[0003] After the quantitative dosing device is used, the cylinder wall of the dosing device is cleaned to make the test result more accurate during the next use. In the existing dosing device, clean water is passed into the cylinder of the dosing device for cleaning during the cleaning process. However, in this process, the gap between the cylinder wall and the extrusion piston cannot be cleaned in time, which will affect the accuracy of subsequent test results. Utility Model Content

[0004] The purpose of the utility model is to provide a quantitative filler for environmental monitoring wastewater sampling, so as to solve the problem proposed in the above-mentioned background technology that after the quantitative filler is used, in order to make the detection result in the next use more accurate, the cylinder wall of the filler will be cleaned. During the cleaning process of the existing filler, clean water will be passed into the inside of the filler cylinder for cleaning. However, in this process, the gap between the cylinder wall and the extrusion piston cannot be cleaned in time, which will affect the accuracy of the subsequent detection results.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quantitative filler for wastewater sampling in environmental monitoring, comprising a frame, on which a quantitative cylinder and a storage cylinder are respectively arranged, the quantitative cylinder and the storage cylinder are connected through a connecting pipe, a one-way valve is arranged on the connecting pipe, a liquid outlet pipe for quantitatively outputting liquid outward is arranged on one side of the quantitative cylinder, a water inlet pipe is arranged on one side of the storage cylinder, the upper part of the quantitative cylinder is open, and a support ring is arranged on the outer edge of the upper end of the quantitative cylinder;

[0006] A telescopic rod extending into the interior of the metering cylinder is arranged downwardly from the upper part of the frame, and a piston sliding inside the metering cylinder is arranged below the telescopic rod; a plurality of nozzles are arranged in an annular shape on the support ring, and an annular pipe sleeved on the support ring is arranged on the outer side of the support ring, and the tails of the plurality of nozzles all pass through the support ring and are connected with the interior of the annular pipe.

[0007] Furthermore, an external pipe for communicating with an external clean water source pipe is provided on one side of the outer wall of the annular pipe, a control valve is provided on the external pipe, and the interior of the external pipe is communicated with the interior of the annular pipe.

[0008] Furthermore, a piston sleeve is provided on the outer peripheral surface and the lower part of the piston, and the piston sleeve is provided between the cylinder wall of the metering cylinder and the piston.

[0009] Furthermore, a portion of the piston sleeve in contact with the wall of the metering cylinder is provided with an annular sealing groove, and an annular sealing ring is provided in the sealing groove.

[0010] Furthermore, the end of the nozzle away from the annular pipe is arranged to be inclined upward.

[0011] Furthermore, the upper and lower ends of the storage tube are sealed, and a pressurized tank is arranged on the top of the storage tube, and the pressurized tank is filled with high-pressure gas.

[0012] Furthermore, an outer edge is provided on the outer edge of the upper end of the metering cylinder, and the support ring is fixedly mounted on the outer edge by bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a support ring above the metering cylinder and a nozzle inside the support ring. When the piston needs to be cleaned, the nozzle can be conveniently opened to spray cleaning water onto the surface of the piston, thereby avoiding sewage residue on the outer wall and bottom of the piston. In addition, after the piston is cleaned, the inside of the storage cylinder can be conveniently cleaned by introducing a clean water source into the storage cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a quantitative filler for environmental monitoring wastewater sampling according to the utility model;

[0016] Figure 2 This is a cross-sectional view of a quantitative filler for environmental monitoring wastewater sampling according to the utility model;

[0017] Figure 3 This is a distribution structure diagram of the spraying pipeline of a quantitative filler for environmental monitoring wastewater sampling according to the utility model.

[0018] In the figure: 1. frame; 2. metering cylinder; 21. support ring; 22. nozzle; 23. piston; 24. liquid outlet pipe; 25. annular pipe; 26. external pipe; 27. control valve; 3. storage cylinder; 31. pressurized tank; 32. water inlet pipe; 33. connecting pipe; 4. telescopic rod; 41. piston sleeve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-Figure 3 As shown, the utility model provides a technical solution: a quantitative filler for environmental monitoring wastewater sampling, comprising a frame 1, on which a quantitative cylinder 2 and a storage cylinder 3 are respectively arranged, the quantitative cylinder 2 and the storage cylinder 3 are connected through a connecting pipe 33, and a one-way valve is arranged on the connecting pipe 33, a liquid outlet pipe 24 for quantitatively outputting liquid outward is arranged on one side of the quantitative cylinder 2, and a water inlet pipe 32 is arranged on one side of the storage cylinder 3, the upper side of the quantitative cylinder 2 is open, and a support ring 21 is arranged on the outer edge of the upper end of the quantitative cylinder 2;

[0021] A telescopic rod 4 (the telescopic rod 4 can be an electric telescopic rod) is arranged above and downwardly into the interior of the metering cylinder 2, and a piston 23 sliding inside the metering cylinder 2 is arranged below the telescopic rod 4; a plurality of nozzles 22 are arranged in a ring shape on the support ring 21, and the diameter of the support ring 21 is larger than the diameter of the metering cylinder 2, and the position of the nozzle 22 will not block the up and down movement of the piston 23. An annular pipe 25 is arranged on the outer side of the support ring 21 and is sleeved on the support ring 21, and the tails of the plurality of nozzles 22 all pass through the support ring 21 and are connected with the interior of the annular pipe 25.

[0022] In the utility model, in actual use, by arranging a support ring 21 above the metering cylinder 2 and arranging a nozzle 22 inside the support ring 21, when it is necessary to clean the piston 23, the nozzle 22 can be conveniently opened to spray cleaning water onto the surface of the piston 23, thereby avoiding residual sewage on the outer wall and bottom of the piston 23. In addition, after the piston 23 is cleaned, the inside of the storage cylinder 3 can be conveniently cleaned by introducing a clean water source into the storage cylinder 3.

[0023] It should be noted that when the telescopic rod 4 is in the retracted state, the top of the metering cylinder 2 is opened, so that the inside of the metering cylinder 2 can be easily observed or cleaned, the internal cleaning degree of the metering cylinder 2 can be more accurately specified, and corresponding changes can be made to the cleaning process in a timely manner.

[0024] Furthermore, an external pipe 26 for communicating with an external clean water source pipe is provided on one side of the outer wall of the annular pipe 25 . A control valve 27 is provided on the external pipe 26 . The interior of the external pipe 26 is communicated with the interior of the annular pipe 25 .

[0025] Furthermore, a piston sleeve 41 is sleeved on the outer circumferential surface and the lower part of the piston 23 , and the piston sleeve 41 is arranged between the cylinder wall of the metering cylinder 2 and the piston 23 .

[0026] Furthermore, the portion of the piston sleeve 41 that contacts the wall of the metering cylinder 2 is provided with an annular sealing groove, and an annular sealing ring is provided in the sealing groove.

[0027] Furthermore, one end of the nozzle 22 away from the annular pipe 25 is arranged to be inclined upward.

[0028] Furthermore, the upper and lower ends of the storage tube 3 are sealed, and a pressurized tank 31 is disposed on the top of the storage tube 3 , and the pressurized tank 31 is filled with high-pressure gas.

[0029] Furthermore, an outer edge is provided on the outer edge of the upper end of the metering cylinder 2, and the support ring 21 is fixedly mounted on the outer edge by bolts.

[0030] Working principle: By tilting the nozzle 22 away from one end of the annular pipe 25 upward, this structure can not only flush the surroundings of the piston sleeve 41, but also flush the bottom of the piston sleeve 41 during use; in addition, the piston 23 and the lower end of the telescopic rod 4 are rotatable, which can drive the piston 23 to rotate during the flushing process, so that all parts of the piston 23 can be flushed.

[0031] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A quantitative filler for wastewater sampling for environmental monitoring, comprising a frame (1), wherein a quantitative cylinder (2) and a storage cylinder (3) are respectively arranged on the frame (1), wherein the quantitative cylinder (2) and the storage cylinder (3) are connected via a connecting pipe (33), wherein a one-way valve is arranged on the connecting pipe (33), wherein a liquid outlet pipe (24) for quantitatively outputting liquid to the outside is arranged on one side of the quantitative cylinder (2), and a water inlet pipe (32) is arranged on one side of the storage cylinder (3), wherein the quantitative cylinder (2) and the storage cylinder (3) are connected via a connecting pipe (33), wherein the connecting pipe (33) and the storage cylinder (3) are connected via a connecting pipe (3 ... The top of the quantitative cylinder (2) is open, and a support ring (21) is provided on the outer edge of the upper end of the quantitative cylinder (2); A telescopic rod (4) extending downwardly into the interior of the quantitative cylinder (2) is arranged above the frame (1), and a piston (23) sliding inside the quantitative cylinder (2) is arranged below the telescopic rod (4); a plurality of nozzles (22) are arranged in an annular shape on the support ring (21), and an annular pipe (25) sleeved on the support ring (21) is arranged on the outer side of the support ring (21), and the tails of the plurality of nozzles (22) all pass through the support ring (21) and are connected to the interior of the annular pipe (25).

2. A quantitative filler for environmental monitoring wastewater sampling according to claim 1, characterized in that: An external pipe (26) for communicating with an external clean water source pipe is arranged on one side of the outer wall of the annular pipe (25); a control valve (27) is arranged on the external pipe (26); and the interior of the external pipe (26) is communicated with the interior of the annular pipe (25).

3. A quantitative filler for environmental monitoring wastewater sampling according to claim 1, characterized in that: The outer peripheral surface and the lower part of the piston (23) are sleeved with a piston sleeve (41), and the piston sleeve (41) is arranged between the cylinder wall of the metering cylinder (2) and the piston (23).

4. A quantitative filler for environmental monitoring wastewater sampling according to claim 3, characterized in that: The portion of the piston sleeve (41) that contacts the wall of the metering cylinder (2) is provided with an annular sealing groove, and an annular sealing ring is provided in the sealing groove.

5. The quantitative filler for environmental monitoring wastewater sampling according to claim 1, characterized in that: The end of the spray head (22) away from the annular pipe (25) is arranged to be inclined upward.

6. A quantitative filler for environmental monitoring wastewater sampling according to claim 1, characterized in that: The storage cylinder (3) is sealed at the top and bottom, and a pressurized tank (31) is provided at the top of the storage cylinder (3), and the pressurized tank (31) is filled with high-pressure gas.

7. The quantitative filler for environmental monitoring wastewater sampling according to claim 1, characterized in that: The outer edge of the upper end of the metering cylinder (2) is provided with an outer edge, and the support ring (21) is fixedly mounted on the outer edge by means of bolts.

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