CN117433840B - Portable water quality sampling and detecting device - Google Patents
Portable water quality sampling and detecting device Download PDFInfo
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- CN117433840B CN117433840B CN202311611440.6A CN202311611440A CN117433840B CN 117433840 B CN117433840 B CN 117433840B CN 202311611440 A CN202311611440 A CN 202311611440A CN 117433840 B CN117433840 B CN 117433840B
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- 238000005070 sampling Methods 0.000 title claims abstract description 95
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000012360 testing method Methods 0.000 claims abstract description 82
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 210000005239 tubule Anatomy 0.000 claims abstract description 22
- 238000002627 tracheal intubation Methods 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/06—Test-tube stands; Test-tube holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/50—Clamping means, tongs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Clinical Laboratory Science (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a portable water quality sampling and detecting device, which comprises a box body, a sampling assembly and a detecting assembly, wherein the sampling assembly comprises a mounting plate, a clamping assembly, a liquid level sensor, a plurality of pushing mechanisms, a plurality of rubber plugs, a plurality of exhaust tubules and a sampling pump, the mounting plate is provided with a liquid level detecting hole and a plurality of pipe inserting holes, and the pipe inserting holes are suitable for being inserted into inverted test tubes; the box body is provided with a sampling groove, and the mounting plate is covered on the sampling groove and is connected with the box body in a sealing way; the clamping component is arranged on the upper side of the mounting plate and connected with the mounting plate, and is used for clamping the test tube inserted into the tube hole; the liquid level sensor is connected with the box body or the mounting plate and extends into the liquid level detection hole; the pushing mechanisms are arranged at the lower side of the sampling groove and are connected with the box body; the pushing mechanisms are in one-to-one correspondence with the cannula holes; the lower side of each rubber plug is connected with the pushing mechanism; the exhaust tubules are in one-to-one correspondence with the intubation holes and are connected with the box body; the sampling pump is connected with the box body.
Description
Technical Field
The invention belongs to the technical field of water quality detection, and particularly relates to a portable water quality sampling detection device.
Background
When the existing portable water quality detection equipment is used for detecting water quality, the water quality detection equipment generally needs to be sampled firstly, and a sample water body is put into a beaker, a water tank or other containers; then, liquid separation operation is carried out, namely, a dropper, a syringe and other devices are used, and samples are quantitatively added into a test tube one by one; then, pretreating a sample in a test tube to detect the sample; the liquid separation operation is complicated, and the sample is easy to be polluted by the outside in the operation process.
Disclosure of Invention
The embodiment of the invention provides a portable water quality sampling and detecting device, which aims to solve the technical problems.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a portable quality of water sample detection device, including box, sampling subassembly and detection component, sampling subassembly includes:
the liquid level detection device comprises a mounting plate, a liquid level detection device and a plurality of cannula holes, wherein the cannula holes are suitable for being inserted into inverted test tubes and are in sealing fit with the test tubes; the box body is provided with a sampling groove, and the mounting plate is covered on the sampling groove and is connected with the box body in a sealing way; the liquid level detection hole and the plurality of cannula holes are communicated with the sampling groove;
the clamping assembly is arranged on the upper side of the mounting plate, connected with the mounting plate and used for clamping the test tube inserted into the intubation hole;
the liquid level sensor is connected with the box body or the mounting plate and extends into the liquid level detection hole;
the pushing mechanisms are arranged at the lower side of the sampling groove and are connected with the box body; the pushing mechanisms are in one-to-one correspondence with the cannula holes;
the rubber plugs are aligned with the cannula holes one by one, and the lower side of each rubber plug is connected with the pushing mechanism and is suitable for being pushed down by the pushing mechanism to be plugged into a test tube of the cannula hole;
the exhaust tubules are in one-to-one correspondence with the intubation holes and are connected with the box body, one end of each exhaust tubule penetrates through the rubber plug and stretches into the intubation hole, and the other end of each exhaust tubule is communicated with the outside atmosphere; and
and the sampling pump is connected with the box body, and the water outlet of the sampling pump is communicated with the sampling groove.
In one possible implementation manner of the portable water quality sampling and detecting device provided by the invention, the sampling assembly further comprises a plurality of sealing sleeves, the sealing sleeves are in one-to-one correspondence with the cannula holes, each sealing sleeve is arranged in the cannula hole and connected with the mounting plate, and the sealing sleeves are suitable for sliding sealing fit with the test tube.
In one possible implementation manner of the portable water quality sampling and detecting device provided by the invention, a plurality of cannula holes are arranged in a matrix, and the clamping assembly comprises:
the clamping mechanisms correspond to the cannula holes in a plurality of rows or columns, each clamping mechanism comprises two clamping plates, and the two clamping plates are arranged on two sides of one column or one row of cannula holes; and
the first driving assembly comprises two first screws and two first driving motors, the two first screws are parallel and are arranged at intervals, and the first screws sequentially penetrate through the two clamping plates and are in threaded fit with the clamping plates; the first driving motor is connected with the mounting plate, the power output end is connected with the first screw rod and used for driving the first screw rod to rotate so as to drive the two clamping plates to be close to or far away from each other.
In one possible implementation manner of the portable water quality sampling detection device provided by the invention, a liquid storage cavity is arranged in the box body and is used for storing hydraulic oil; the rubber plug is provided with a blind hole; the pushing mechanism comprises:
the pushing cylinder is vertically embedded in the box body and is connected with the box body;
the pushing rod is arranged in the pushing cylinder in a sliding manner, one end of the pushing rod is in sliding sealing fit with the pushing cylinder, and the other end of the pushing rod extends out of the pushing cylinder and is inserted into the blind hole in the rubber plug; and
the hydraulic pump is connected with the box body, one end of the hydraulic pump is communicated with the liquid storage cavity, and the other end of the hydraulic pump is communicated with the pushing cylinder.
In one possible implementation manner of the portable water quality sampling detection device provided by the invention, the rubber plug comprises:
the sealing column is suitable for being inserted into the test tube and is in sealing fit with the test tube; and
and the check ring is connected with one end of the sealing column, and the diameter of the check ring is larger than that of the sealing column and is suitable for being abutted with a test tube port.
In one possible implementation manner of the portable water quality sampling detection device provided by the invention, the pushing mechanism further comprises a first spring, wherein the first spring is arranged in the pushing cylinder, one end of the first spring is connected with the pushing rod, and the other end of the first spring is connected with the pushing cylinder.
In one possible implementation manner of the portable water quality sampling and detecting device provided by the invention, a clamping block is arranged at one end, connected with the rubber plug, of the ejector rod, the clamping block is connected with the ejector rod and protrudes out of the side surface of the ejector rod, a sliding groove is formed in the side surface of a blind hole of the rubber plug, a containing groove is formed in the bottom of the blind hole, the ejector rod provided with the clamping block is suitable for sliding fit with the sliding groove, and the clamping block is suitable for sliding through the sliding groove to be placed in the containing groove and has the degree of freedom of rotation in the containing groove; the sampling assembly further comprises a steering assembly, wherein the steering assembly is connected with the box body and the push rod, and is suitable for driving the push rod to rotate for a preset angle in the ascending or descending process of the push rod.
In one possible implementation manner of the portable water quality sampling and detecting device provided by the invention, a spiral groove is formed on the side surface of the push rod, and the steering assembly comprises:
the steering mechanisms are corresponding to the pushing rods in a plurality of rows or columns, each steering mechanism comprises a plurality of steering rods, a connecting plate and a plurality of second springs, the steering rods are in one-to-one correspondence with one row or one row of pushing rods, the steering rods are arranged on one side of the pushing rods, which is provided with the spiral grooves, one end of each steering rod is suitable for being inserted into each spiral groove, the steering rods are in sliding fit with the connecting plate, one end of each second spring is connected with the steering rod, and the other end of each second spring is connected with the connecting plate; and
the second driving assembly comprises two second screw rods and two second driving motors, the two second screw rods are parallel and are arranged at intervals, the second screw rods penetrate through the connecting plate to be in threaded fit with the connecting plate, the second driving motors are connected with the box body, and the power output end is connected with the second screw rods.
In one possible implementation manner of the portable water quality sampling detection device provided by the invention, a communication cavity is arranged in the box body and is communicated with the outside, and one end of the exhaust tubule extends into the communication cavity and is communicated with the communication cavity.
The portable water quality sampling and detecting device provided by the invention has the beneficial effects that: compared with the prior art, the portable water quality sampling detection device provided by the invention has the advantages that when sampling is performed, the test tubes are inserted into the tube insertion holes to different depths according to the volume of samples to be filled in each test tube, the test tubes are clamped and fixed by the clamping assemblies, then the sampling pump is started, the water body in the area to be detected is pumped into the sampling groove and continuously pumped into the sampling groove, the liquid level is continuously pumped into the sampling groove, water starts to enter the tube insertion holes and enters the test tubes, the gas in the test tubes is discharged through the exhaust tubules, so that the liquid level in each test tube is consistent with the liquid level in the liquid level detection hole until the liquid level sensor detects that the liquid level in the liquid level detection hole reaches the requirement, and then the sampling pump stops working, and at the moment, the volume of the samples in each test tube reaches the required volume according to the different insertion depths; then, pushing the rubber plug into the test tube through the pushing mechanism, closing the port of the test tube, and finally; all test tubes are taken out, samples in all test tubes can be processed and detected without separating liquid again, the operation is simpler and more convenient, and the test tubes are sealed by the rubber plugs before the test tubes are taken out from the cannula holes, so that the samples can be effectively prevented from being polluted.
Drawings
FIG. 1 is a schematic perspective view of a portable water quality sampling and detecting device according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an outlet mounting plate and its upper components of a portable water quality sampling and detecting device according to an embodiment of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2;
FIG. 4 is a schematic top view of a portable water quality sampling and detecting device according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
fig. 6 is an enlarged view of a portion B in fig. 5;
FIG. 7 is a schematic diagram of a rubber plug in a portable water quality sampling and detecting device according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a pushing mechanism in a portable water quality sampling and detecting device according to an embodiment of the present invention;
reference numerals illustrate:
10. a case; 11. a sampling groove; 12. a liquid storage cavity; 13. a communication chamber;
20. a detection assembly; 30. a mounting plate; 31. a cannula hole; 32. a liquid level detection hole; 33. sealing sleeve;
40. a liquid level sensor; 51. a test tube; 52. a rubber plug; 521. a sealing column; 522. a retainer ring;
523. a blind hole; 524. a chute; 525. a receiving groove; 53. an exhaust tubule;
54. a sampling pump; 61. a clamping plate; 62. a first screw; 63. a first driving motor;
71. a pushing cylinder; 72. pushing the push rod; 721. a spiral groove; 73. a clamping block; 74. a hydraulic pump;
75. a first spring; 81. a steering lever; 82. a connecting plate; 83. a second spring;
84. a second screw; 85. and a second driving motor.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways and the spatially relative descriptions used herein are construed accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.
Referring to fig. 1 to 8, a portable water quality sampling and detecting device provided by the invention will now be described. The portable water quality sampling and detecting device comprises a box body 10, a sampling assembly and a detecting assembly 20, wherein the sampling assembly comprises a mounting plate 30, a clamping assembly, a liquid level sensor 40, a plurality of pushing mechanisms, a plurality of rubber plugs 52, a plurality of exhaust tubules 53 and a sampling pump 54, the mounting plate 30 is provided with a liquid level detecting hole 32 and a plurality of cannula holes 31, and the cannula holes 31 are suitable for being inserted into inverted test tubes 51 and are in sealing fit with the test tubes 51; the box body 10 is provided with a sampling groove 11, and the mounting plate 30 is covered on the sampling groove 11 and is connected with the box body 10 in a sealing way; the liquid level detection hole 32 and the plurality of cannula holes 31 are both in communication with the sampling tank 11; the clamping assembly is arranged on the upper side of the mounting plate 30, is connected with the mounting plate 30 and is used for clamping the test tube 51 inserted into the cannula hole 31; the liquid level sensor 40 is connected with the box body 10 or the mounting plate 30 and extends into the liquid level detection hole 32; the pushing mechanisms are arranged at the lower side of the sampling groove 11 and are connected with the box body 10; the pushing mechanisms are in one-to-one correspondence with the cannula holes 31; the rubber plugs 52 are aligned with the cannula holes 31 one by one, and the lower side of each rubber plug 52 is connected with the pushing mechanism and is suitable for being pushed down by the pushing mechanism to be plugged into the test tube 51 of the cannula hole 31; the plurality of exhaust tubules 53 are in one-to-one correspondence with the cannula holes 31, are connected with the box body 10, and have one end penetrating through the rubber plug 52 and extending into the cannula holes 31, and the other end communicated with the outside atmosphere; the sampling pump 54 is connected with the box 10, and the water outlet of the sampling pump 54 is communicated with the sampling groove 11.
It should be noted that, the detection assembly 20 is a detection device in the existing portable water quality detection apparatus; the liquid level sensor 40 is an existing liquid level sensor, and may specifically be a capacitive liquid level sensor, for detecting the liquid level in the liquid level detection hole 32.
The depth of the exhaust tubule 53 extending into the test tube 51 is larger than the liquid level height after the sample in the test tube 51 reaches the required volume, the exhaust tubule 53 communicates the test tube 51 with the external atmosphere, so that the water body can smoothly enter the test tube 51, and the liquid level in each cannula hole 31 is ensured to be the same.
The rubber plug 52 has elasticity, the exhaust tubule 53 is a tubule similar to a needle and has certain rigidity, and after the rubber plug 52 is pulled out of the exhaust tubule 53, the hole of the exhaust tubule 53 remained on the rubber plug 52 is automatically closed.
The portable water quality sampling and detecting device provided by the embodiment of the invention has the beneficial effects that: compared with the prior art, in the portable water quality sampling detection device provided by the embodiment of the invention, when sampling is performed, according to the volume of a sample to be filled in each test tube 51, the test tube 51 is inserted into the tube insertion hole 31 to different depths, the clamping component is used for clamping and fixing the test tube 51, then the sampling pump 54 is started, the water body in the area to be detected is pumped into the sampling groove 11, the sampling groove 11 is continuously pumped in, the liquid level is continuously pumped in, water starts to enter the tube insertion hole 31 and enters the test tube 51, the gas in the test tube 51 is discharged through the exhaust tubule 53, so that the liquid level in each test tube 51 is consistent with the liquid level in the liquid level detection hole 32 until the liquid level sensor 40 detects that the liquid level in the liquid level detection hole 32 reaches the required volume, and at the same time, the sample volume in each test tube 51 reaches the required volume according to the different insertion depths; then, the rubber plug 52 is jacked into the test tube 51 through the jacking mechanism, the mouth of the test tube 51 is closed, and finally; all test tubes 51 are taken out, samples in all test tubes 51 can be processed and detected without separating liquid again, the operation is simpler and more convenient, and before the test tubes 51 are taken out from the cannula hole 31, the test tubes 51 are sealed by the rubber plugs 52, so that the samples can be effectively prevented from being polluted.
As shown in fig. 4 and 5, in a specific implementation manner of the portable water quality sampling and detecting device provided by the embodiment of the present invention, the sampling assembly further includes a plurality of sealing sleeves 33, the plurality of sealing sleeves 33 are in one-to-one correspondence with the cannula holes 31, each sealing sleeve 33 is disposed in the cannula hole 31 and connected with the mounting plate 30, and the sealing sleeve 33 is adapted to be in sliding sealing fit with the test tube 51.
Specifically, the sealing sleeve 33 is a rubber sleeve, and can be in sealing sliding fit with the test tube 51, so that water body overflow is avoided.
As shown in fig. 1 and fig. 4, in a specific implementation manner of the portable water quality sampling and detecting device provided by the embodiment of the present invention, a plurality of cannula holes 31 are arranged in a matrix, a clamping assembly includes a plurality of clamping mechanisms and a first driving assembly, the plurality of clamping mechanisms correspond to a plurality of rows or columns of cannula holes 31, each clamping mechanism includes two clamping plates 61, and the two clamping plates 61 are disposed on two sides of a column or a row of cannula holes 31; the first driving assembly comprises two first screw rods 62 and two first driving motors 63, the two first screw rods 62 are parallel and are arranged at intervals, and the first screw rods 62 sequentially penetrate through the two clamping plates 61 and are in threaded fit with the clamping plates 61; the first driving motor 63 is connected with the mounting plate 30, and the power output end is connected with the first screw rod 62, and is used for driving the first screw rod 62 to rotate, so that the two clamping plates 61 are driven to be close to or far away from each other, when the two clamping plates are close to each other, the test tube 51 is clamped, and when the two clamping plates are far away from each other, the test tube 51 is loosened.
Specifically, the two clamping plates 61 are in threaded fit with the first screw 62, and when the first screw 62 rotates, the two clamping plates 61 move symmetrically all the time to maintain a centered state, so that shearing force is generated on the test tube 51 and the test tube 51 is damaged when the test tube 51 is clamped.
Further, as shown in fig. 4 and 5, in a specific implementation manner of the portable water quality sampling and detecting device provided by the embodiment of the present invention, a liquid storage cavity 12 is provided in the tank 10 for storing hydraulic oil; the rubber plug 52 is provided with a blind hole 523; the pushing mechanism comprises a pushing cylinder 71, a pushing rod 72 and a hydraulic pump 74, wherein the pushing cylinder 71 is vertically embedded in the box body 10 and is connected with the box body 10; the pushing rod 72 is slidably arranged in the pushing cylinder 71, one end of the pushing rod is in sliding sealing fit with the pushing cylinder 71, and the other end of the pushing rod extends out of the pushing cylinder 71 and is inserted into a blind hole 523 in the rubber plug 52; the hydraulic pump 74 is connected to the tank 10, and one end of the hydraulic pump 74 is connected to the reservoir 12, and the other end is connected to the jack cylinder 71.
It should be noted that, when the liquid level sensor 40 detects that the liquid level reaches the requirement, the hydraulic pump 74 drives the push rod 72 to move upwards, so as to push the rubber plug 52 into the test tube 51, and seal the mouth of the test tube 51; after that, the push rod 72 is reset, the push rod 72 is pulled out from the blind hole 523 of the rubber plug 52, and the rubber plug 52 is left in the test tube 51.
Specifically, as shown in fig. 3 and 5, in a specific implementation manner of the portable water quality sampling and detecting device provided by the embodiment of the present invention, the rubber plug 52 includes a sealing post 521 and a retainer 522, and the sealing post 521 is adapted to be inserted into the test tube 51 and to be in sealing fit with the test tube 51; the retainer 522 is connected with one end of the sealing column 521, and the diameter of the retainer 522 is larger than that of the sealing column 521 and is suitable for abutting with the mouth of the test tube 51; so that the depth of each rubber plug 52 inserted into the test tube 51 is kept consistent, and the accuracy of the sample volume in the test tube 51 is further ensured.
Further, as shown in fig. 5 and 6, in a specific implementation manner of the portable water quality sampling detection device provided by the embodiment of the invention, the pushing mechanism further includes a first spring 75, the first spring 75 is disposed in the pushing cylinder 71, one end of the first spring is connected with the pushing rod 72, the other end of the first spring is connected with the pushing cylinder 71, the first spring 75 stores elastic potential energy in the process that the hydraulic pump 74 drives the pushing rod 72 to extend, and when the pushing rod 72 needs to be reset, the elastic potential energy is released to drive the pushing rod 72 to reset.
As shown in fig. 6 and 8, in a specific implementation manner of the portable water quality sampling and detecting device provided by the embodiment of the invention, a clamping block 73 is arranged at one end of the push rod 72 connected with the rubber plug 52, the clamping block 73 is connected with the push rod 72 and protrudes out of the side surface of the push rod 72, a sliding groove 524 is formed at the side surface of a blind hole 523 of the rubber plug 52, a containing groove 525 is formed at the bottom of the blind hole 523, the push rod 72 provided with the clamping block 73 is suitable for sliding fit with the sliding groove 524, and the clamping block 73 is suitable for sliding across the sliding groove 524, is arranged in the containing groove 525 and has the freedom degree of rotation in the containing groove 525; the sampling assembly further comprises a steering assembly connected with the case 10 and the push rod 72, and adapted to drive the push rod 72 to rotate by a preset angle during the ascending or descending of the push rod 72.
After the rubber plug 52 is mounted on the ejector rod 72, the clamping block 73 is dislocated with the chute 524, and the ejector rod 72 cannot pull out the rubber plug 52; before sampling, the test tube 51 is inserted into the cannula hole 31 and is inserted into the rubber plug 52 in the sampling groove 11; then, the pushing mechanism is controlled to push the test tube 51 to different heights, the clamping assembly is controlled to clamp the test tube 51, and then the pushing mechanism drives the rubber plug 52 to separate from the test tube 51 and reset, so that compared with the manual adjustment of the insertion depth of the test tube 51, the insertion depth precision of the test tube 51 is controlled to be higher through the pushing mechanism.
Further, after the liquid level reaches the requirement, the pushing mechanism is lifted to push the rubber plug 52 into the test tube 51, in the process, the steering assembly controls the pushing rod 72 to steer to align the clamping block 73 with the sliding groove 524, so that when the pushing rod 72 moves downwards after the rubber plug 52 is pushed into the test tube 51, the pushing rod 72 can be pulled out of the rubber plug 52 and separated from the rubber plug 52.
As shown in fig. 6 and 7, in a specific implementation manner of the portable water quality sampling and detecting device provided by the embodiment of the invention, a spiral groove 721 is formed on the side surface of the push rod 72, the steering assembly comprises a plurality of steering mechanisms and a second driving assembly, the steering mechanisms correspond to a plurality of rows or columns of push rods 72, each steering mechanism comprises a plurality of steering rods 81, a connecting plate 82 and a plurality of second springs 83, the steering rods 81 correspond to one row or column of push rods 72 one by one, one end of each steering rod 81 is suitable for being inserted into the spiral groove 721, the steering rods 81 are in sliding fit with the connecting plate 82, one end of each second spring 83 is connected with the steering rod 81, and the other end of each second spring 83 is connected with the connecting plate 82; the second driving assembly comprises two second screw rods 84 and two second driving motors 85, the two second screw rods 84 are parallel and are arranged at intervals, the second screw rods 84 penetrate through the connecting plate 82 to be in threaded fit with the connecting plate 82, the second driving motors 85 are connected with the box body 10, and the power output end is connected with the second screw rods 84.
The rotation angle of the spiral groove 721 is 90 degrees, and when the push rod 72 is not required to be rotated, the steering rod 81 is far away from the push rod 72; when the push rod 72 needs to be rotated, the second driving motor 85 drives the second screw 84 to rotate, so as to drive the connecting plate 82 and the steering rod 81 thereon to approach the push rod 72, so that one end of the steering rod 81 is inserted into the spiral groove 721, and when the push rod 72 rises, the steering rod 81 slides in the spiral groove 721 relative to the push rod 72, and the steering rod 81 is fixed, therefore, the push rod 72 rotates 90 degrees under the action of the spiral groove 721, and the clamping block 73 is aligned with the sliding groove 524; the second spring 83 enables the steering rod 81 to be disengaged from the spiral groove 721 when sliding to the lowermost end of the spiral groove 721, avoiding the influence of the continued movement of the push rod 72.
As shown in fig. 5, in a specific embodiment of the portable water quality sampling and detecting device provided by the embodiment of the invention, a communication cavity 13 is provided in the box 10, the communication cavity 13 is communicated with the outside, and one end of an exhaust tubule 53 extends into the communication cavity 13 and is communicated with the communication cavity 13.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The utility model provides a portable quality of water sample detection device, includes box (10), sampling subassembly and detection subassembly (20), its characterized in that, sampling subassembly includes:
the mounting plate (30) is provided with a liquid level detection hole (32) and a plurality of cannula holes (31), and the cannula holes (31) are suitable for being inserted into an inverted test tube (51) and are in sealing fit with the test tube (51); the box body (10) is provided with a sampling groove (11), and the mounting plate (30) is covered on the sampling groove (11) and is connected with the box body (10) in a sealing way; the liquid level detection hole (32) and the plurality of cannula holes (31) are communicated with the sampling groove (11);
the clamping assembly is arranged on the upper side of the mounting plate (30), is connected with the mounting plate (30) and is used for clamping the test tube (51) inserted into the cannula hole (31);
a liquid level sensor (40) connected with the box body (10) or the mounting plate (30) and extending into the liquid level detection hole (32);
the pushing mechanisms are arranged at the lower side of the sampling groove (11) and are connected with the box body (10); the pushing mechanisms are in one-to-one correspondence with the cannula holes (31);
the rubber plugs (52) are aligned with the cannula holes (31) one by one, the lower side of each rubber plug (52) is connected with the pushing mechanism, and the rubber plugs are suitable for being pushed by the pushing mechanism and plugged into test tubes (51) of the cannula holes (31);
a plurality of exhaust tubules (53) which are in one-to-one correspondence with the intubation holes (31) and are connected with the box body (10), one end of each exhaust tubule penetrates through the rubber plug (52) to extend into the intubation hole (31), and the other end of each exhaust tubule is communicated with the outside atmosphere; and
and the sampling pump (54) is connected with the box body (10), and a water outlet of the sampling pump (54) is communicated with the sampling groove (11).
2. The portable water quality sampling and testing device according to claim 1, wherein the sampling assembly further comprises a plurality of sealing sleeves (33), the plurality of sealing sleeves (33) are in one-to-one correspondence with the insertion holes (31), each sealing sleeve (33) is arranged in the insertion hole (31) and connected with the mounting plate (30), and the sealing sleeves (33) are suitable for sliding sealing fit with the test tube (51).
3. The portable water sampling test device according to claim 1, wherein a plurality of said cannula holes (31) are arranged in a matrix, said clamping assembly comprising:
the clamping mechanisms correspond to the cannula holes (31) in a plurality of rows or columns, each clamping mechanism comprises two clamping plates (61), and the two clamping plates (61) are arranged on two sides of one column or one row of cannula holes (31); and
the first driving assembly comprises two first screw rods (62) and two first driving motors (63), the two first screw rods (62) are parallel and are arranged at intervals, and the first screw rods (62) sequentially penetrate through the two clamping plates (61) and are in threaded fit with the clamping plates (61); the first driving motor (63) is connected with the mounting plate (30), the power output end is connected with the first screw rod (62) and used for driving the first screw rod (62) to rotate so as to drive the two clamping plates (61) to be close to or far away from each other.
4. The portable water quality sampling and detecting device according to claim 1, wherein a liquid storage cavity (12) is arranged in the box body (10) for storing hydraulic oil; the rubber plug (52) is provided with a blind hole (523); the pushing mechanism comprises:
the pushing cylinder (71) is vertically embedded in the box body (10) and is connected with the box body (10);
the pushing rod (72) is arranged in the pushing cylinder (71) in a sliding manner, one end of the pushing rod is in sliding sealing fit with the pushing cylinder (71), and the other end of the pushing rod extends out of the pushing cylinder (71) and is inserted into a blind hole (523) in the rubber plug (52); and
the hydraulic pump (74) is connected with the box body (10), one end of the hydraulic pump (74) is communicated with the liquid storage cavity (12), and the other end of the hydraulic pump is communicated with the pushing cylinder (71).
5. The portable water sampling test device of claim 4, wherein the rubber plug (52) comprises:
a sealing column (521) adapted to be inserted into the test tube (51) in sealing engagement with the test tube (51); and
and a retainer ring (522) connected with one end of the sealing column (521), wherein the diameter of the retainer ring (522) is larger than that of the sealing column (521), and the retainer ring is suitable for abutting with a mouth of the test tube (51).
6. The portable water quality sampling and detecting device according to claim 5, wherein the pushing mechanism further comprises a first spring (75), the first spring (75) is arranged in the pushing cylinder (71), one end of the first spring is connected with the pushing rod (72), and the other end of the first spring is connected with the pushing cylinder (71).
7. The portable water quality sampling and detecting device according to claim 6, wherein a clamping block (73) is arranged at one end of the push rod (72) connected with the rubber plug (52), the clamping block (73) is connected with the push rod (72) and protrudes out of the side surface of the push rod (72), a sliding groove (524) is formed in the side surface of a blind hole (523) of the rubber plug (52), a containing groove (525) is formed in the bottom of the blind hole (523), the push rod (72) provided with the clamping block (73) is suitable for being in sliding fit with the sliding groove (524), and the clamping block (73) is suitable for being placed in the containing groove (525) in a sliding way through the sliding groove (524) and has the freedom degree of rotation in the containing groove (525); the sampling assembly further comprises a steering assembly, wherein the steering assembly is connected with the box body (10) and the pushing rod (72), and is suitable for driving the pushing rod (72) to rotate by a preset angle in the ascending or descending process of the pushing rod (72).
8. The portable water sampling test device according to claim 7, wherein the push rod (72) is provided with a spiral groove (721) on a side surface, and the steering assembly comprises:
the steering mechanisms are corresponding to the pushing rods (72) in a plurality of rows or columns, each steering mechanism comprises a plurality of steering rods (81), a connecting plate (82) and a plurality of second springs (83), the steering rods (81) are in one-to-one correspondence with one row or one row of pushing rods (72), one side of each pushing rod (72) provided with the spiral groove (721) is provided with one end, the other end is suitable for being inserted into the spiral groove (721), the steering rods (81) are in sliding fit with the connecting plate (82), one end of each second spring (83) is connected with the steering rod (81), and the other end of each second spring is connected with the connecting plate (82); and
the second driving assembly comprises two second screw rods (84) and two second driving motors (85), the two second screw rods (84) are parallel and are arranged at intervals, the second screw rods (84) penetrate through the connecting plates (82) to be in threaded fit with the connecting plates (82), the second driving motors (85) are connected with the box body (10), and the power output end is connected with the second screw rods (84).
9. The portable water quality sampling and detecting device according to claim 1, wherein a communication cavity (13) is arranged in the box body (10), the communication cavity (13) is communicated with the outside, and one end of the exhaust tubule (53) extends into the communication cavity (13) and is communicated with the communication cavity (13).
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| CN113218707A (en) * | 2021-04-21 | 2021-08-06 | 浙江升腾环境工程有限公司 | A sewage sampling device for environmental monitoring |
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| JP2009089759A (en) * | 2007-10-04 | 2009-04-30 | Aloka Co Ltd | Blood collecting method and blood collecting tube coupler |
| CN102607764A (en) * | 2012-02-27 | 2012-07-25 | 徐州中矿安达矿山科技有限公司 | Multipoint synchronous pressure testing and sampling device |
| CN110940558A (en) * | 2019-11-25 | 2020-03-31 | 西安重光明宸检测技术有限公司 | Water quality testing sampling device |
| CN111649999A (en) * | 2020-07-06 | 2020-09-11 | 安徽中青检验检测有限公司 | Quantitative sampling device for water quality detection |
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