Sampler for detecting water quality of drinking water source

Abstract

The utility model provides a sampler for detecting the water quality of a drinking water source, which relates to the technical field of water quality sampling and comprises a sampling shell, and a containing cavity and at least two sampling cavities are arranged in the sampling shell; the accommodating cavity is positioned above the plurality of sampling cavities, and a communicating notch is formed between the accommodating cavity and each sampling cavity; an air guide pipe is mounted at one end, far away from the sampling cavities, of the accommodating cavity, and the accommodating cavity is communicated with the outside through the air guide pipe; a piston is arranged in each sampling cavity, a pull rod is fixedly connected to the end, close to the containing cavity, of each piston, and the pull rods penetrate through the corresponding communicating notches to extend into the containing cavity and drive the pistons to be attached to the cavity walls of the sampling cavities to be in sliding connection with the sampling shell; by arranging the multiple sampling cavities and arranging the one-way valves at different heights of the sampling shell, water samples at multiple target depths can be obtained through single sampling, and improvement of the accuracy of water quality detection is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality sampling technical field, concretely relates to a sampler for drinking water source water quality detection. BACKGROUND

[0002] With the social economic development, scientific progress and the improvement of people's living standards, people's water quality requirement of life drinking water is continuously improved, and the water quality detection is the key to the continuous development and improvement of drinking water quality standard, and among them, collecting water sample is an important link in water quality detection.

[0003] In the prior art, the water quality is sampled by using a sampler, and when the water quality of the drinking water source is sampled, due to the complex water quality environment of the drinking water source, the water quality of different depths of the water source needs to be sampled, and the water quality sample after sampling by the sampler is injected into a test tube for subsequent laboratory detection work.

[0004] When sampling operation is performed, different depths of water samples need to be sampled respectively to realize accurate analysis. However, the existing sampler can only obtain a water sample of a target depth at a time, and therefore, the sampling efficiency is low. UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a sampler for drinking water source water quality detection, which solves the problem that the sampler can only obtain a water sample of a target depth at a time in the prior art.

[0007] (II) Technical scheme

[0008] To achieve the above purpose, the utility model is implemented by the following technical scheme:

[0009] In the utility model, the sampler for drinking water source water quality detection includes a sampling shell, a containing cavity and at least two sampling cavities are arranged in the sampling shell;

[0010] The containing cavity is located above the plurality of sampling cavities, and a communication notch is respectively arranged between the containing cavity and each sampling cavity;

[0011] The end of the containing cavity away from the plurality of sampling cavities is provided with a gas guide pipe, and the containing cavity is communicated with the outside through the gas guide pipe;

[0012] The inside of each sampling cavity is provided with a piston, and the end of each piston close to the containing cavity is respectively fixedly connected with a pull rod, the pull rod extends to the containing cavity through the corresponding communication notch, and drives the piston to slide with the cavity wall of the sampling cavity and the sampling shell;

[0013] The plurality of pull rods are fixedly connected with the connecting plate at the end away from the piston.

[0014] The inside of the cavity is provided with a lifting structure, and the telescopic end of the lifting structure is installed with the connecting plate.

[0015] The inside of the lifting structure is provided with a wireless communication module, and the lifting structure is signal-connected with an external controller through the wireless communication module.

[0016] The sampling shell is detachably connected with a plurality of one-way valves corresponding to the sampling cavities, and each one-way valve is located at different heights of the sampling shell.

[0017] During collection, the controller sends a signal to the wireless communication module of the lifting structure to control the telescopic end of the lifting structure to ascend, so that the plurality of pistons realize water inlet of the corresponding one-way valves, and different depths of sampling water quality are collected into the corresponding sampling cavities.

[0018] Further, the inner diameter of the air guide pipe is greater than 7cm, and the wall thickness of the air guide pipe is greater than the inner diameter.

[0019] Further, the material of the air guide pipe is ethylene-propylene rubber.

[0020] Further, a plurality of scale grooves are engraved on the outer wall of the air guide pipe, and the plurality of scale grooves are equidistantly distributed along the pipe length direction.

[0021] Further, at least two lifting rings are installed on the sampling shell, and the plurality of lifting rings are equidistantly distributed on the sampling shell in a ring shape.

[0022] A pull rope is arranged on each lifting ring.

[0023] Further, the lifting structure is an electric push rod, the telescopic end of the electric push rod is fixedly connected with the connecting plate, and the fixed end of the electric push rod is fixed with the wall of the cavity through a connecting piece.

[0024] The electric push rod is powered by a mobile power supply.

[0025] The wireless communication module is embedded in the electric push rod, and is used for controlling the telescopic end of the electric push rod by an external controller.

[0026] (Three) beneficial effects

[0027] The utility model provides a sampler for drinking water source water quality detection, compared with the prior art, has the following beneficial effects:

[0028] By setting multiple sampling cavities and setting one-way valves at different heights of the sampling shell, multiple target depth water samples can be obtained through single sampling, solving the problem in the prior art that the existing sampler can only obtain one target depth water sample through single sampling when sampling the water quality of a drinking water source, resulting in low sampling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 It is a structural schematic diagram of a sampler for drinking water source water quality detection.

[0031] Figure 2 It is Figure 1 It is a structural schematic diagram of a sampler placed in water source water for sampling.

[0032] Figure 3 It is Figure 2 State diagram.

[0033] Reference signs:

[0034] 1, sampling shell; 10, lifting ring; 101, pull rope; 11, sampling cavity; 111, pull rod; 112, piston; 12, cavity; 121, electric push rod; 122, connecting plate; 123, connecting piece; 13, air guide pipe; 131, scale groove; 2, one-way valve. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0036] The sampler for drinking water source water quality detection provided in the embodiments of the present application solves the problem in the prior art that the sampler can only obtain one target depth water sample through single sampling, and multiple target depth water samples can be obtained through single sampling, realizing accurate analysis of subsequent water quality.

[0037] The technical scheme in the embodiments of the present application is as follows to solve the above technical problems.

[0038] In the prior art, a sampler is used to sample water quality. When sampling the water quality of a drinking water source, the water quality of different depths of the water source needs to be sampled due to the complex water quality environment of the drinking water source. The water quality samples taken by the sampler are injected into test tubes for subsequent laboratory detection.

[0039] When sampling is performed, water samples at different depths need to be sampled separately to achieve accurate analysis. However, the existing sampler can only obtain a water sample at one target depth at a time;

[0040] It has been found through research that, as shown in Figures 1-3 by providing a plurality of sampling cavities and a one-way valve at different heights of the sampling shell, a plurality of water samples at target depths can be obtained at a time, thereby solving the problem of low sampling efficiency caused by the fact that the existing sampler can only obtain a water sample at one target depth at a time when sampling the water quality of a drinking water source.

[0041] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings in the specification and specific embodiments.

[0042] Embodiment:

[0043] As shown in Figures 1-3 a sampler for detecting the water quality of a drinking water source, comprising a sampling shell 1, wherein a containing cavity 12 and at least two sampling cavities 11 are arranged in the sampling shell 1;

[0044] The containing cavity 12 is located above the plurality of sampling cavities 11 and is provided with a communication slot between each sampling cavity 11;

[0045] The end of the containing cavity 12 away from the plurality of sampling cavities 11 is provided with a gas guide pipe 13, and the containing cavity 12 is connected with the outside through the gas guide pipe 13;

[0046] Each sampling cavity 11 is provided with a piston 112, and each piston 112 is fixedly connected with a pull rod 111 at one end close to the containing cavity 12, the pull rod 111 extends into the containing cavity 12 through the corresponding communication slot and drives the piston 112 to slide along the cavity wall of the sampling cavity 11 and the sampling shell 1;

[0047] The ends of the plurality of pull rods 111 away from the pistons 112 are fixedly connected with a connecting plate 122;

[0048] The containing cavity 12 is provided with a lifting structure inside, and the extension end of the lifting structure is connected with the connecting plate 122 to control the connecting plate 122 to drive the plurality of pistons 112 to ascend or descend along the cavity wall of the sampling cavity 11.

[0049] The interior of the lifting structure is provided with a wireless communication module, and the lifting structure is signal-connected with the external controller through the wireless communication module;

[0050] A plurality of one-way valves 2 corresponding to the sampling cavities 11 are detachably connected to the sampling shell 1, and each one-way valve 2 is located at different heights of the sampling shell 1.

[0051] During collection, the controller sends a signal to the wireless communication module of the lifting structure to control the lifting of the telescopic end of the lifting structure, drive the plurality of pistons 112 to realize water inflow of the corresponding one-way valves 2, and collect the water samples of different depths into the corresponding sampling cavities 11. Figure 2 The state of the sampler changes from Figure 3 to

[0052] It should be noted that the weight of the sampler itself can sink into the water, and the center of gravity of the sampler is located at the center of the sampler, which ensures that the sampler sinks vertically into the water to better perform sampling, and the driving of the lifting structure will not damage the stability of the sampling of the sampler.

[0053] By arranging a plurality of sampling cavities 11 and arranging one-way valves 2 at different heights of the sampling shell 1, multiple target depth water samples can be obtained in a single sampling, solving the problem that in the prior art, when sampling the water quality of a drinking water source, the existing sampler can only obtain a target depth water sample in a single sampling, resulting in low sampling efficiency.

[0054] As shown in Figure 1 , the inner diameter of the air guide pipe 13 is greater than 7 cm, and the wall thickness of the air guide pipe 13 is greater than the inner diameter.

[0055] By limiting the inner diameter and wall thickness of the air guide pipe 13, the air guide pipe 13 can be prevented from being deformed by external forces, thereby preventing the lifting structure from being inconvenient to operate for multiple pistons 112 to pump water.

[0056] Specifically, the material of the air guide pipe 13 is ethylene-propylene rubber, which utilizes the characteristics of ethylene-propylene rubber to improve the elasticity of the air guide pipe 13 and reduce the adhesion of the air guide pipe 13, so that the air guide pipe 13 can better guide the air.

[0057] As shown in Figure 1 , a plurality of scale grooves 131 are engraved on the outer wall of the air guide pipe 13, and the plurality of scale grooves 131 are equidistantly distributed along the pipe length direction.

[0058] By arranging a plurality of scale grooves 131 in the pipe length direction, the depth of the collector into the water can be recorded, and the depth of the collected water sample can be calculated according to the scale value and the corresponding length value of the collector.

[0059] For example, when the collector is vertically placed in water, the length between the closest one-way valve 2 to the water surface and the sampling shell 1 is 30 cm, the vertical distance between the closest two one-way valves 2 is 5 cm, and the vertical distance between the adjacent two scale grooves 131 is 5 cm, so the water depth corresponding to the water quality collected by the sampling cavity 11 can be obtained.

[0060] As shown in Figures 1-3 , the sampling shell 1 is provided with at least two lifting rings 10, and the plurality of lifting rings 10 are arranged in a ring shape and equidistantly distributed on the sampling shell 1.

[0061] Each of the lifting rings 10 is provided with a pull rope 101.

[0062] By setting the lifting ring 10 and the pull rope 101, the sinking and rising of the sampler are controlled by the pull rope 101, the force for controlling the lifting and lowering of the sampler is concentrated on the pull rope 101, the force of the hand on the air guide pipe 13 is reduced, and the air guiding of the air guide pipe 13 is further facilitated.

[0063] Specifically, as shown in Figures 1-3 , the lifting structure is an electric push rod 121, the telescopic end of the electric push rod 121 is fixedly connected with the connecting plate 122, and the fixed end of the electric push rod 121 is fixed with the wall of the cavity 12 through the connecting piece 123.

[0064] The electric push rod 121 is powered by a mobile power supply.

[0065] The wireless communication module is embedded in the electric push rod 121, and is used for the controller of the external device to control the telescoping of the electric push rod 121.

[0066] It should be noted that the mobile power supply is in a chargeable mode, when charging, the charging interface on the mobile power supply passes through the outer opening and is charged by using an external power line, and when not charging, the cover closes the outer opening, the cover and the sampling shell 1 are detachably connected, and the sealing between the cover and the sampling shell 1 is good.

[0067] In addition to the air guiding during the water pumping process through the air guide pipe 13, the entire collector has good sealing and will not have internal water seepage.

[0068] The lifting structure is set in the form of the electric push rod 121, and the mobile power supply is used to power the electric push rod 121, which can improve the overall use convenience.

[0069] The sampler is stabilized in water by its own gravity, or the whole sampler is installed on an underwater collection robot for stable use. The underwater collection robot is a prior art. When the collector is fixedly installed on the underwater collection robot for use, the pull rope 101 does not need to be installed.

[0070] Or when collecting water samples in shallow water, the overall length of the collector is lengthened during processing, and the sampler can be used above hand.

[0071] When working, two workers respectively wind and unwind the corresponding pull rope 101, and according to the scale on the air guide pipe 13, the sampler is lowered to the corresponding depth position. The workers control the lifting structure to rise by a controller, and under the action of the connecting plate 122, the lifting structure drives the plurality of pistons 112 to slide upward on the cavity wall of the corresponding sampling cavity 11 to perform air extraction operation. The water quality at the corresponding depth is extracted into the corresponding sampling cavity 11 through the corresponding one-way valve 2 to collect, and the sampling of water quality at multiple different depths is simultaneously completed.

[0072] Then, the plurality of pull ropes 101 are simultaneously wound, the sampler is pulled out of the water surface, the water quality at different depths collected by the sampler is used for subsequent laboratory detection work, the one-way valve 2 is respectively disassembled, the water quality collected at the corresponding depth is introduced into the corresponding test tube through the mounting hole of the one-way valve 2, and subsequent detection work is performed. Then, the sampling cavity 11 is cleaned with clean water to facilitate repeated use of the sampler.

[0073] It should be noted that according to actual scene requirements, the average value of the water sample data at multiple depths taken at a time can be used to improve the accurate analysis of detection during laboratory analysis. Taking water samples at multiple depths at a time can reduce the influence of water flow disturbance on sampling in the same water area compared with multiple sampling.

[0074] Compared with the prior art, the sampler has the following beneficial effects:

[0075] 1. By providing a plurality of sampling cavities 11 and one-way valves 2 at different heights of the sampling shell 1, water samples at multiple target depths can be obtained at a time, which solves the problem that the prior art can only obtain a water sample at a target depth at a time when sampling the water quality of a drinking water source, resulting in low sampling efficiency.

[0076] 2. By limiting the inner diameter and wall thickness of the air guide pipe 13, the air guide pipe 13 can be prevented from being deformed by external forces, thereby preventing the lifting structure from being inconvenient for water extraction operation of the plurality of pistons 112.

[0077] 3. By setting multiple scale grooves 131 in the pipe length direction, the depth of the collector entering the water can be recorded, and then the depth of the collected water sample can be calculated according to the scale value and the corresponding length value of the collector.

[0078] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more limitations, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0079] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sampler for water quality testing of drinking water sources, characterized in that, It includes a sampling housing (1), which has a cavity (12) and at least two sampling cavities (11) inside; The cavity (12) is located above the plurality of sampling cavities (11), and a communication slot is provided between it and each sampling cavity (11); A gas duct (13) is installed at one end of the cavity (12) away from the multiple sampling cavities (11), and the cavity (12) is connected to the outside through the gas duct (13); Each of the sampling chambers (11) is provided with a piston (112) inside. Each piston (112) is fixedly connected to a pull rod (111) at one end near the cavity (12). The pull rod (111) extends through the corresponding connecting slot into the cavity (12) and drives the piston (112) to slide against the cavity wall of the sampling chamber (11) and the sampling housing (1). The ends of the multiple pull rods (111) away from the piston (112) are all fixedly connected to the connecting plate (122); The cavity (12) is equipped with a lifting structure. The telescopic end of the lifting structure is installed with the connecting plate (122). The connecting plate (122) is controlled to drive multiple pistons (112) to rise or fall along the cavity wall of the sampling cavity (11). The lifting structure is equipped with a wireless communication module, and the lifting structure is connected to an external controller via the wireless communication module. The sampling housing (1) is detachably connected to a plurality of one-way valves (2) corresponding one-to-one with the sampling chamber (11), and each one-way valve (2) is located at a different height of the sampling housing (1); During the collection process, the controller sends a signal to the wireless communication module of the lifting structure to control the extension end of the lifting structure to rise, thereby driving multiple pistons (112) to achieve water intake through the corresponding one-way valve (2) and collecting water samples from different depths into the corresponding sampling chamber (11).

2. A sampler for drinking water source quality testing as described in claim 1, characterized in that, The inner diameter of the air guide tube (13) is greater than (7) cm, and the wall thickness of the air guide tube (13) is greater than the inner diameter.

3. A sampler for drinking water source quality testing as described in claim 2, characterized in that, The air duct (13) is made of ethylene propylene rubber.

4. A sampler for drinking water source quality testing as described in claim 3, characterized in that, The outer wall of the air guide tube (13) is engraved with multiple scale grooves (131), which are equidistantly distributed along the length of the tube.

5. A sampler for drinking water source quality testing as described in claim 4, characterized in that, At least two lifting rings (10) are installed on the sampling housing (1), and multiple lifting rings (10) are distributed in a ring at equal intervals on the sampling housing (1); Each of the lifting rings (10) is provided with a pull rope (101).

6. A sampler for drinking water source quality testing as described in any one of claims 1-5, characterized in that, The lifting structure is an electric push rod (121), the telescopic end of the electric push rod (121) is fixedly connected to the connecting plate (122), and the fixed end of the electric push rod (121) is fixed to the wall of the cavity (12) through the connector (123); The electric push rod (121) is powered by a mobile power source; The wireless communication module is embedded in the electric push rod (121) and is used by the peripheral controller to control the extension and retraction of the electric push rod (121).

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