CN219142346U

CN219142346U - Water quality sampler

Info

Publication number: CN219142346U
Application number: CN202223382366.9U
Authority: CN
Inventors: 孙志强
Original assignee: Haiyang Qiheng Environmental Protection Technology Co ltd
Current assignee: Haiyang Qiheng Environmental Protection Technology Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-06
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to a water quality sampler, which comprises a shell and a sampling assembly, wherein the shell comprises a first split body and a second split body which are detachably and fixedly connected, and the sampling assembly comprises a pump body, a correction device and a sampling barrel; the device comprises a correction device, a sampling pipe, a shell, a pump body, a water inlet and a water outlet, wherein the correction device is internally provided with a first flow channel and a second flow channel which are not communicated with each other; the correction device is also provided with a liquid level control device capable of detecting the liquid level in the first flow channel and a pressure sensor capable of detecting the liquid pressure in the first flow channel. The utility model can measure the pressure of the water body entering the sampler so as to provide a basis for the revolution adjustment of the pump body.

Description

Water quality sampler

Technical Field

The utility model relates to the technical field of water quality sampling, in particular to a water quality sampler.

Background

When the water quality sampling of sewage well, inspection shaft, rainwater pipe network etc. is carried out to the environment detection personnel, because these special environment spaces are narrow and small, the personnel can't directly descend in the well to sample, and some rainwater pipe network water falling mouth can be in on the road moreover, brings danger for sampling personnel's and road safety.

For this reason, a person skilled in the art proposes to use a sampler to perform in-well sampling, for example, chinese patent publication No. CN217424867U discloses a miniature suspended water quality automatic sampler, which can realize in-well automatic sampling of water quality, but has the problem that the sampling amount cannot be controlled, and thus excessive sampling or insufficient sampling is easy to occur.

In the working process of the sampler, the number of sampling volume is generally controlled by the number of revolutions of the pump body of the sampler, but the pressure is different for liquids with different depths, and the number of sampling volume is proportional to the pressure when the pump body rotates by the same number of revolutions, so if the sampling volume is ensured to be maintained at the same level, the number of revolutions of the pump body needs to be adjusted according to the pressure.

Disclosure of Invention

Aiming at the defects in the prior art, the technical problem to be solved by the utility model is to provide a water quality sampler which is provided with a correction device, and the pressure of a water body entering the sampler can be measured so as to provide a basis for the rotation number adjustment of a pump body.

In order to solve the technical problems, the utility model provides a water quality sampler, which comprises a shell and a sampling assembly arranged in the shell, wherein the shell comprises a first split body and a second split body which are detachably and fixedly connected, and the sampling assembly comprises a pump body, a correction device and a sampling barrel; the device comprises a shell, a pump body, a sampling barrel, a first flow passage, a second flow passage, a sampling port, a first pump interface, a second pump interface and a discharge port, wherein the first flow passage and the second flow passage are not communicated with each other; the correction device is also provided with a liquid level control device capable of detecting the liquid level in the first flow channel and a pressure sensor capable of detecting the liquid pressure in the first flow channel.

In the utility model, the sampling assembly can be placed in the shell to sink into the well for sampling, and the pressure sensor can detect the water pressure in the first flow channel during sampling, and the water pressure can be used for guiding and adjusting the revolution of the pump body so as to realize the adjustment of the sampling amount. In addition, the liquid level control device can accurately detect whether liquid enters the first flow channel, and when the liquid level control device detects that the liquid enters the correction device, the liquid level control device takes the liquid level control device as a zero point to calculate the revolution of the pump body, so that accurate control of the sampling amount is realized. By adopting the structure, water in the well can sequentially enter the sampling barrel through the sampling pipe, the sampling port, the first pump interface, the pump body, the second pump interface and the discharge port under the action of the pump body.

Preferably, the pressure sensor is located between the sampling port and the first pump interface.

Preferably, the liquid level control device comprises two electrical contact liquid level controllers, and the liquid level control device is located between the sampling port and the pressure sensor.

Preferably, the pump body, the correction device and the sampling barrel are sequentially arranged from top to bottom, and the sampling barrel is tightly abutted to the bottom of the correction device, so that the discharge port is positioned at the inner periphery of the sampling barrel.

Preferably, the first and second split bodies are arranged one above the other and the first and second split bodies are connected by a snap.

Preferably, a fixing ring is provided in the second body, and an inner circumferential dimension of the fixing ring is adapted to an outer circumferential dimension of the sampling tub. The fixed ring can prevent the sampling barrel from shaking.

Preferably, the first split body is provided with a plurality of hanging rings. The lifting ring may facilitate suspending the entire sampler within the well.

Preferably, the second split body is provided with the opening, and the inner periphery of the opening is flush with the inner periphery of the sampling port. So that a seal is provided between the sampling tube and the opening to prevent fluid in the well from entering the housing.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is an exploded view of a water quality sampler according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a connection structure between a correction device and a pump body according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a correction device according to an embodiment of the present utility model;

FIG. 4 is a second schematic structural diagram of a correction device according to an embodiment of the utility model.

Reference numerals:

1-a first split; 2-a second split; 21-a fixing ring; 22-opening; 3-a pump body; 31-a water inlet; 32-a water outlet; 4-correction means; 41-sampling port; 42-a first pump interface; 43-a second pump interface; 44-discharge port; 45-a first mounting hole; 46-a second mounting hole; 5-sampling barrel; 6-a water guide; 7-a pressure sensor; 8-electrical contact level controller.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present utility model are merely conventional adaptive applications of the prior art. The present utility model is therefore an improvement over the prior art in that the connection between hardware is essentially not a function, method itself, i.e. the present utility model, although it relates to a point of function, method, does not involve the improvement proposed for the function, method itself. The description of the function and the method of the utility model is for better explaining the utility model so as to better understand the utility model.

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

As shown in fig. 1, 2, 3 and 4, the present embodiment provides a water quality sampler, which includes a housing and a sampling assembly disposed in the housing, wherein the housing includes a first split 1 and a second split 2 detachably and fixedly connected by a buckle (not shown in the drawings), and the first split 1 and the second split 2 are disposed up and down, and in the present embodiment, the buckle is an existing stainless steel flat-mouth buckle. In addition, a plurality of hanging rings (not shown in the figure) are fixedly arranged on the outer side of the first split body 1, and the whole sampler can be conveniently hung in a well to perform sampling work through the hanging rings.

The sampling assembly comprises a pump body 3, a correction device 4 and a sampling barrel 5 which are sequentially arranged from top to bottom, wherein the sampling barrel 5 is placed in the second split body 2, the top opening of the sampling barrel 5 is tightly abutted to the bottom of the correction device 4, a fixing ring 21 is arranged in the second split body 2, and the inner peripheral dimension of the fixing ring 21 is matched with the outer peripheral dimension of the sampling barrel 5 so as to prevent the sampling barrel 5 from shaking. The first flow passage and the second flow passage which are not communicated with each other are provided in the correction device 4, a sampling port 41 and a first pump port 42 which are communicated with the first flow passage, a second pump port 43 and a discharge port 44 which are communicated with the second flow passage are provided in the correction device 4, a flexible sampling tube (not shown) is connected to the sampling port 41, an opening 22 through which the sampling tube can extend is provided in the second split body 2, and the inner circumference of the opening 22 is flush with the inner circumference of the sampling port 41. The first pump port 42 and the second pump port 43 are respectively communicated with the water inlet 31 and the water outlet 32 of the pump body 3 through the water guide 6, and the discharge port 44 is positioned just at the inner periphery of the top opening of the sampling barrel 5, namely, the discharge port 44 is communicated with the inside of the sampling barrel 5.

In addition, the correction device 4 is further provided with a liquid level control device capable of detecting the liquid level in the first flow passage and a pressure sensor 7 capable of detecting the liquid pressure in the first flow passage, and the sampling port 41, the liquid level control device, the pressure sensor 7 and the first pump port 42 are sequentially arranged along the liquid flow direction in the first flow passage. The liquid level control device comprises two electric contact liquid level controllers 8, when the liquid flows through the first flow channel, the electrodes of the two electric contact liquid level controllers 8 are conducted, so that whether the liquid flows through the first flow channel can be judged according to the conducting condition of the electric contact liquid level controllers 8.

Specifically, one first mounting hole 45 and two second mounting holes 46 are provided on the correction device 4, the first mounting hole 45 and the second mounting hole 46 each being in communication with the first flow passage, wherein the first mounting hole 45 is used for mounting the pressure sensor 7, and the second mounting hole 46 is used for mounting the electric contact level controller 8.

In this embodiment, the pump body 3 is a peristaltic pump, during sampling, the sampler is suspended in a well, the pump body 3 works, so that liquid in the well enters the water inlet 31 of the pump body 3 through the sampling tube, the sampling port 41, the first flow channel and the first pump interface 42, and then enters the sampling barrel 5 through the water outlet 32, the second pump interface 43, the second flow channel and the discharge port 44 of the pump body 3, thereby completing sampling. The pressure sensor 7 can detect the water pressure in the first flow channel, and the water pressure can be used for guiding and adjusting the revolution of the pump body 3, so that the sampling amount can be adjusted. In addition, the liquid level control device can accurately detect whether liquid enters the first flow channel, and when the liquid level control device detects that the liquid enters the correction device 4, the rotation number of the pump body 3 is calculated by taking the liquid level control device as a zero point, so that accurate control of the sampling amount is realized.

In addition, the correction device 4 of the present embodiment is made of nylon material, and has a process hole for processing the first flow channel and the second flow channel in addition to the sampling port 41, and in practice, the process port is screwed and sealed with a nylon bolt.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims

1. A water quality sampler, comprising:

the sampling device comprises a shell and a sampling assembly arranged in the shell, wherein the shell comprises a first split body and a second split body which are detachably and fixedly connected, and the sampling assembly comprises a pump body, a correction device and a sampling barrel;

the device comprises a shell, a pump body, a sampling barrel, a first flow passage, a second flow passage, a sampling port, a first pump interface, a second pump interface and a discharge port, wherein the first flow passage and the second flow passage are not communicated with each other;

the correction device is also provided with a liquid level control device capable of detecting the liquid level in the first flow channel and a pressure sensor capable of detecting the liquid pressure in the first flow channel.

2. A water quality sampler according to claim 1 and wherein:

the pressure sensor is located between the sampling port and the first pump port.

3. A water quality sampler according to claim 1 and wherein:

the liquid level control device comprises two electric contact liquid level controllers, and the liquid level control device is positioned between the sampling port and the pressure sensor.

4. A water quality sampler according to claim 1 and wherein:

the pump body, the correction device and the sampling barrel are sequentially arranged from top to bottom, and the sampling barrel is tightly abutted to the bottom of the correction device, so that the discharge outlet is positioned at the inner periphery of the sampling barrel.

5. A water quality sampler according to claim 1 and wherein:

the first split body and the second split body are arranged up and down, and the first split body and the second split body are connected through a hasp.

6. The water sampler of claim 5 wherein:

a fixing ring is arranged in the second sub body, and the inner peripheral dimension of the fixing ring is matched with the outer peripheral dimension of the sampling barrel.

7. The water sampler of claim 5 wherein:

the first split body is provided with a plurality of hanging rings.

8. The water sampler of claim 5 wherein:

the second split body is provided with the opening, and the inner periphery of the opening is flush with the inner periphery of the sampling port.