Water quality sampler

Abstract

The utility model discloses a water quality sampler which comprises a sampler head part and a water storage part, the sampler head part is provided with a water inlet port, a valve and a waterproof ventilation valve, the water storage part is connected with the waterproof ventilation valve, and the valve can be electrically / pneumatically conducted or closed to enable the water inlet port to be communicated with or separated from the water storage part. According to the utility model, through the arrangement of the valve, opening and closing between the water inlet port and the water storage piece can be realized, the sealing performance between the water inlet port and the water storage piece is improved, and through the arrangement of the waterproof ventilation valve, gas in the water storage piece can be allowed to be exhausted, and meanwhile, a water sample is prevented from flowing back into the water storage piece; the valve can be electrically / pneumatically switched on or switched off, so that the water inlet port can be communicated with or separated from the water storage piece, and the layered sampling precision of water quality sampling under different water levels and water pressures is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water sample collection, and more particularly to a water quality sampler. Background Art

[0002] Currently, water quality sampling projects require the collection of large quantities of water samples to assist in analyzing water quality data characteristics at different times and locations. As a fundamental tool for collecting water samples, the design and development of water samplers directly impacts the representativeness of the samples and the accuracy of the data.

[0003] However, most current water quality collection devices are crude and difficult to operate. In practice, sampling often involves tying a bucket or bottle to a rope. This makes it difficult to meet water sampling requirements, especially in complex working conditions, and even more difficult to ensure the authenticity and validity of the data. For example, when sampling in drainage system manholes or river channels, high water levels and high water pressures make it difficult to avoid mixing and interference caused by water from different water layers entering the sampler under the influence of water pressure. Furthermore, when the water level is low, it is easy for the sampler to contact the bottom mud, causing sampling errors. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to improve the stratified sampling accuracy of water quality sampling under different water levels and water pressures.

[0005] The utility model solves the above-mentioned technical problems through the following technical means: a water quality sampler, including a sampler head and a water storage part, the sampler head is provided with a water inlet port, a valve, and a waterproof breathable valve, the water storage part is connected to the waterproof breathable valve, and the valve can be electrically / pneumatically opened or closed to connect or disconnect the water inlet port and the water storage part.

[0006] By setting the valve, the water inlet port and the water storage component can be opened and closed, thereby improving the sealing performance between the water inlet port and the water storage component. By setting the waterproof and breathable valve, the gas in the water storage component can be allowed to be discharged while preventing the water sample from flowing back into the water storage component. By enabling the valve to be electrically / pneumatically opened or closed, the water inlet port and the water storage component can be connected or disconnected, thereby improving the stratified sampling accuracy of water quality sampling under different water levels and water pressures.

[0007] As a preferred technical solution, an electric water pump is connected between the water inlet port and the water storage member.

[0008] As a preferred technical solution, it also includes a connecting piece, which is connected to the sampler head.

[0009] As a preferred technical solution, one end of the connector is detachably connected to the sampler head, and the other end is connected to a control box. The control box is provided with a control box switch, and the control box switch is electrically or communicatively connected to the valve.

[0010] As a preferred technical solution, a cross bar is detachably connected to the sampler head, and the cross bar and the water inlet port are located on different end faces or the same end face of the sampler head.

[0011] As a preferred technical solution, the cross bar and the sampler head are arranged vertically, and the connecting piece is provided with scales in the circumferential direction.

[0012] As a preferred technical solution, the sampler head is detachably connected with a water inlet pipe, the water inlet pipe forms the water inlet port, and a filter is provided on the outside of the water inlet port.

[0013] As a preferred technical solution, the water storage component includes a sampling bottle, and the sampling bottle can be communicated with the water inlet port.

[0014] As a preferred technical solution, the water inlet port, electric water pump, valve, waterproof breathable valve, and water storage component are connected in series in sequence.

[0015] As a preferred technical solution, the connecting part includes an adjustable telescopic rod or an electric telescopic rod, and the telescopic end of the telescopic rod is detachably connected to the sampler head; the adjustable telescopic rod includes several sleeve rods with different inner diameters that are sequentially fitted together, and adjacent sleeve rods are fixed by limit clamps.

[0016] The beneficial effects of the present invention are:

[0017] (1) In the present invention, the water inlet port and the water storage component can be opened and closed by setting the valve, thereby improving the sealing performance between the water inlet port and the water storage component; the waterproof and breathable valve can allow the gas in the water storage component to be discharged while preventing the water sample from flowing back into the water storage component; by enabling the valve to be electrically / pneumatically turned on or off, the water inlet port and the water storage component can be connected or disconnected, thereby improving the stratified sampling accuracy of water quality sampling under different water levels and water pressures.

[0018] (2) In the present invention, the arrangement of the cross bar can assist in locating the flowing water sample when sampling at a high water level in the inspection well, thereby avoiding a dead water zone. By arranging the cross bar and the water inlet port on different end faces of the sampler head, the volume of the sampler head can be reduced. At the same time, the sampler head and the cross bar are arranged to be detachably connected, so that the cross bar can be easily disassembled according to different usage scenarios.

[0019] (3) In the present invention, by setting the connecting piece as a retractable structure and setting scales on its circumference, the buried depth of the pipeline can be measured.

[0020] (4) In the present invention, by providing a filter at the water inlet, large particles of pollutants such as gravel can be effectively prevented from entering the water storage part; at the same time, the purpose of preventing the water inlet from being blocked can also be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the front structure provided by an embodiment of the utility model;

[0022] Figure 2 A side view schematic diagram of the structure provided by an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of a partial structure provided for an embodiment of the present utility model;

[0024] Figure 4 A schematic diagram of full water level sampling provided by an embodiment of the present utility model;

[0025] Figure 5 A schematic diagram of low water level sampling provided by an embodiment of the present utility model;

[0026] Figure 6 A schematic diagram of the pipeline buried depth structure provided by an embodiment of the utility model;

[0027] Figure numbers: 1. Water inlet pipe; 2. Sampler head; 3. Electric water pump; 4. Valve; 5. Connecting hose; 6. Filter; 7. Waterproof and breathable valve; 8. Sampling bottle; 9. Adjustable telescopic rod; 10. Control box; 11. Control box switch; 12. Power display window; 13. Cross bar. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] See Figure 1 、 Figure 2, a water quality sampler, including a sampler head 2, a connecting piece, and a water storage piece. The connecting piece is connected to the sampler head 2. The sampler head 2 is provided with a water inlet port, a valve 4, an electric water pump 3, and a waterproof breathable valve 7. The valve 4 can be electrically opened or closed and cause the water inlet port to be connected or disconnected with the water storage piece. The valve 4 can also be pneumatically opened or closed and cause the water inlet port to be connected or disconnected with the water storage piece. In this embodiment, the valve 4 can be a pneumatic valve or an electromagnetic valve. The function of the waterproof breathable valve 7 is to effectively prevent water samples from entering and backflowing into the water storage piece, while allowing gas to freely enter and exit while waterproofing; therefore, when the water sample enters the water storage piece, the air in the water storage piece and the pipeline can be discharged through the waterproof breathable valve 7; the electric water pump 3 is used to sample at a low water level to avoid the water sample from being unable to enter the water storage piece due to insufficient water pressure, and at the same time it can also speed up the water extraction speed.

[0030] See Figure 2 An electric water pump 3 and a valve 4 are connected between the water inlet port of the sampler head 2 and the water storage member, and a waterproof breathable valve 7 is connected to the water storage member. The arrangement order of the electric water pump 3 and the valve 4 can be changed. In this embodiment, the electric water pump 3 and the valve 4 are connected in series as an example. The water inlet port of the sampler head 2 is connected to the input end of the electric water pump 3, the output end of the electric water pump 3 is connected to the input end of the valve 4, and the output end of the valve 4 is connected to the input end of the water storage member through a connecting hose 5. The output end of the water storage member is threadedly connected to the waterproof breathable valve 7;

[0031] The valve 4 and the electric water pump 3 may also be arranged in series in sequence, but are not limited to this. Of course, the electric water pump 3 and the valve 4 may also be connected through a connecting pipe; in order to improve the waterproof performance of the sampler head 2, the sampler head 2 also includes a sampler shell, and the electric water pump 3, the valve 4, and the waterproof breathable valve 7 are all arranged in the sampler shell and sealed and fixed to the sampler shell.

[0032] See Figure 1 , one end of the connecting piece is detachably connected to the sampler head 2, such as a threaded connection, a bolt connection, a plug-in connection, etc., but not limited thereto, the other end of the connecting piece is connected to a control box 10, and a control box switch 11 is provided on the control box 10. The control box switch 11 is electrically or communicatively connected to the valve 4 and the electric water pump 3. A power display window 12 is also provided on the control box 10, and a control circuit board is further provided in the control box 10. The valve 4 and the electric water pump 3 are electrically or communicatively connected to the control circuit board. The start and stop of the valve 4 and the electric water pump 3 are controlled by the control box switch 11. The connecting piece is provided with a scale around the circumference, which can be set to a rod-shaped structure with a telescopic function, or other connecting structures with a telescopic function, such as a square rod, a hexagonal rod, or a plate-shaped structure;

[0033] In this embodiment, the connecting member can be an electric telescopic rod or an adjustable telescopic rod 9. The adjustable telescopic rod 9 includes several sleeve rods with different inner diameters that are sequentially fitted together. In this embodiment, there are three sleeve rods with different inner diameters, where the sleeve rod with a smaller diameter is installed inside the sleeve rod with a larger diameter. The adjacent sleeve rods can be fixed by limiting clamps. The limiting clamps include U-shaped clamps. The U-shaped clamps are sleeved on the ends of each sleeve rod and can fix the two slidable sleeve rods by bolts; the two ends of the adjustable telescopic rod 9 are respectively connected to the lower connecting member and the upper connecting member, wherein the upper connecting member is fixedly provided with an upper connecting nut, and is used to threadably connect the extension rod through the upper connecting nut. The extension rod has the same structure as the adjustable telescopic rod 9 to adapt to the requirements of different depths for operation, and the lower connecting member is threadedly connected to the sampler head 2 through the lower connecting nut.

[0034] See Figure 3 In this embodiment, the sampler head 2 is an L-shaped structure, which includes a vertical section and a horizontal section. One end of the horizontal section is fixedly connected to the vertical section, and the other end is connected to a vertically arranged water storage member. The water storage member includes a sampling bottle 8. The sampling bottle 8 is threadedly connected to the output end of the waterproof breathable valve 7 on the outside of the sampler head 2 through a circumferential connecting member. The top of the circumferential connecting member is threadedly connected to the sampler head 2, and the bottom is threadedly connected to the top of the sampling bottle 8. The circumferential connecting member is circumferentially provided with at least one waterproof breathable valve 7. In this embodiment, three are taken as an example. , of course, there can be two or four, but not limited to this. The vertical section is connected to the water inlet pipe 1, and the plane where the bottom of the water inlet pipe 1 is located is the 0 scale plane of the connector scale. The vertical section is also detachably connected to a cross bar 13, and the cross bar 13 and the sampler head 2 can be connected by threaded connection, bolt connection, plug-in connection, etc. In this embodiment, the cross bar 13 and the water inlet pipe 1 are respectively located on adjacent end faces of the sampler head 2, and can also be different end faces or the same end face to reduce the volume of the entire sampler head 2 after being connected to the cross bar 13;

[0035] In this embodiment, the plane where the water inlet pipe 1 is located is below the plane where the cross bar 13 is located. The cross bar 13 is used to abut against the inner wall of the pipe to achieve positioning. The cross bar 13 and the sampler head 2 are vertically fixed. Figure 6 When the cross bar 13 hooks the inner wall of the pipe top, record the scale reading H1 of the connector at the inspection wellhead at this time, record the pipe wall thickness as R, the distance between the plane where the bottom of the water inlet pipe 1 is located and the plane where the top of the cross bar 13 is located as H2, and the buried depth of the pipeline as H3, that is, H3 = H1-H2-R; the scale reading H1 of the connector is the depth of the water inlet pipe 1.

[0036] See Figure 1 The water inlet pipe 1 is detachably connected to the water inlet port through a thread, and a filter 6 is provided on the water inlet pipe 1, which can effectively prevent large particle pollutants such as gravel from entering the water storage component; at the same time, it can also achieve the purpose of preventing the water inlet component from being blocked.

[0037] Directions:

[0038] When the adjustable telescopic rod 9 is used:

[0039] The sampling personnel connect the adjustable telescopic rod 9 with the sampler head 2, and determine whether to install an extension rod according to the depth of the inspection well. The entire water quality sampler after installation is inserted into the inspection well, and the cross bar 13 is used to tightly hook the top of the pipe. During this process, the relative distance between the sleeve rods is adjusted, and the scale reading H1 of the adjustable telescopic rod 9 at the inspection well mouth is recorded at this time; refer to Figure 4 , when sampling at full water level: the sampler head 2 can be placed in any water layer. During the placement process, the valve 4 is not opened, the water channel of the entire device is sealed, and the water sample cannot enter the sampling bottle 8. By turning on the control box switch 11, water flows in from the water inlet pipe 1, enters the connecting hose 5 through the electric water pump 3, enters the sampling bottle 8, and then removes the excess gas in the sampling bottle 8 through the waterproof breathable valve 7. This cycle is repeated until the sampling bottle 8 is full of water, and the water quality sampling is completed. When the sampling bottle 8 is full and the electric water pump 3 no longer works, the water sampling work is completed; refer to Figure 5 , when sampling at low water level: extend the adjustable telescopic rod 9, and gently place the sampler head 2 in the water sample. During the placement of the sampler head 2, just submerge the filter 6 in the water to avoid disturbing the bottom mud. When the sampler head 2 is placed in the water, turn on the control box switch 11, and the water sample enters the sampling bottle 8 through the electric water pump 3 and the valve 4; after the water sample is collected, remove the excess gas in the sampling bottle 8 through the waterproof and breathable valve 7 until the sampling bottle 8 is full of water, turn off the control box switch 11, and take out the sampler head 2;

[0040] When using an electric telescopic rod:

[0041] After the electric telescopic rod, the cross bar 13 and the sampler head 2 are connected, the electric telescopic rod is adjusted to a predetermined length, and the control box switch 11 is turned on. Water flows in from the water inlet pipe 1, flows through the sampler head 2, and reaches the sampling bottle 8 to complete water collection. Excess gas is removed through the waterproof breathable valve 7 to realize water sample collection at a specific position, that is, "positioning first, then sampling" of the water sample in the pipeline. The water collection steps under full water and low water conditions are the same as above and will not be repeated here.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A water sampler, characterized in that: The sampler head (2) comprises a sampler head (2) and a water storage part. The sampler head (2) is provided with a water inlet port, a valve (4), and a waterproof breathable valve (7). The water storage part is connected to the waterproof breathable valve (7). The valve (4) can be electrically / pneumatically opened or closed to connect or disconnect the water inlet port with the water storage part.

2. A water sampler according to claim 1, characterized in that: An electric water pump (3) is connected between the water inlet port and the water storage member.

3. A water sampler according to claim 1, characterized in that: It also comprises a connecting piece, which is connected to the sampler head (2).

4. A water quality sampler according to claim 3, characterized in that: One end of the connector is detachably connected to the sampler head (2), and the other end is connected to a control box (10). The control box (10) is provided with a control box switch (11), and the control box switch (11) is electrically or communicatively connected to the valve (4).

5. A water sampler according to claim 3, characterized in that: A crossbar (13) is detachably connected to the sampler head (2); the crossbar (13) and the water inlet port are located on different end faces or the same end face of the sampler head (2).

6. A water sampler according to claim 5, characterized in that: The crossbar (13) and the sampler head (2) are arranged vertically, and the connecting piece is provided with scales in the circumferential direction.

7. A water sampler according to claim 1, characterized in that: The sampler head (2) is detachably connected to a water inlet pipe (1), the water inlet pipe (1) forms the water inlet port, and a filter (6) is provided on the outside of the water inlet port.

8. A water sampler according to claim 1, characterized in that: The water storage component comprises a sampling bottle (8), and the sampling bottle (8) can be communicated with the water inlet port.

9. A water sampler according to claim 2, characterized in that: The water inlet port, the electric water pump (3), the valve (4), the waterproof and breathable valve (7), and the water storage element are sequentially connected in series.

10. A water sampler according to claim 3, characterized in that: The connecting member comprises an adjustable telescopic rod (9) or an electric telescopic rod, the telescopic end of the electric telescopic rod being detachably connected to the sampler head (2); the adjustable telescopic rod (9) comprises a plurality of sleeve rods with different inner diameters that are sequentially fitted together, and adjacent sleeve rods are fixed by limiting clamps.

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