CN219870494U - Device for preventing cross contamination of samples - Google Patents
Device for preventing cross contamination of samples Download PDFInfo
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- CN219870494U CN219870494U CN202320871817.0U CN202320871817U CN219870494U CN 219870494 U CN219870494 U CN 219870494U CN 202320871817 U CN202320871817 U CN 202320871817U CN 219870494 U CN219870494 U CN 219870494U
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- tube
- sampling
- sampling tube
- piston
- close
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- 238000012864 cross contamination Methods 0.000 title claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 111
- 230000000903 blocking effect Effects 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 40
- 239000007788 liquid Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a device for preventing cross contamination of samples, which comprises a bearing rod and a plurality of sampling components; the sampling component comprises a closed sampling tube, one end of the sampling tube is provided with a through tube communicated with the internal space of the sampling tube, and the other end of the sampling tube is provided with a position adjusting piece for enabling the sampling tube to be arranged on the bearing rod in a sliding manner; a blocking component, a piston and a movable component are arranged in the sampling tube; the piston slides and sets up in the sampling tube, the setting of jam subassembly is in the piston be close to one side of siphunculus, the movable component sets up in one side that the piston deviates from the jam subassembly, the movable component is used for driving the piston and slides towards being close to or deviating from one side of siphunculus in the sampling tube, the jam subassembly is used for stopping up the siphunculus after the sampling is accomplished to the sampling tube. Through the mutual cooperation between the structures, the technical problem that deep samples are easy to cross-pollute in shallow water layers is solved.
Description
Technical Field
The utility model relates to the technical field of sampling devices, in particular to a device for preventing cross contamination of samples.
Background
The purpose of water quality detection is to examine the environmental quality, examine whether the water quality is convenient or suitable for use, examine the pollution or the polluted degree of the water, examine the efficiency of the water treatment process, etc.; the test items (which may be referred to as water quality parameters) of the water sample depend on the purpose of the test and the nature of the water sample. The obtained data should be comprehensively evaluated to explain the water quality, and the detection of sewage in an industrial environment is one of the detection methods, so that the components in the sewage can be analyzed, and the targeted treatment of the sewage is facilitated.
When the existing sampling equipment is used for carrying out layered sampling on a polluted water source, deep samples are easily layered in a shallow water layer, sample pollution is caused, and sampling accuracy is affected, so that a device capable of preventing sample cross pollution is needed to be manufactured so as to solve the problem.
Disclosure of Invention
The utility model mainly aims to provide a device for preventing cross contamination of samples, and aims to solve the technical problem that deep samples are easy to cross-contaminate at shallow water layers in the prior art.
In order to achieve the above object, the device for preventing cross contamination of samples provided by the present utility model comprises a carrier rod and a plurality of sampling components; the sampling component comprises a closed sampling tube, one end of the sampling tube is provided with a through tube communicated with the internal space of the sampling tube, and the other end of the sampling tube is provided with a position adjusting piece for enabling the sampling tube to be arranged on the bearing rod in a sliding manner;
a blocking component, a piston and a movable component are arranged in the sampling tube; the piston slides and sets up in the sampling tube, the setting of jam subassembly is in the piston be close to one side of siphunculus, the movable component sets up in one side that the piston deviates from the jam subassembly, the movable component is used for driving the piston and slides towards being close to or deviating from one side of siphunculus in the sampling tube, the jam subassembly is used for stopping up the siphunculus after the sampling is accomplished to the sampling tube.
Preferably, the position adjusting piece comprises a sleeve which is sleeved on the outer wall of the bearing rod in a sliding mode, the sleeve is arranged on one side, deviating from the through pipe, of the sampling pipe, and a bolt which can be abutted to the outer wall of the bearing rod is arranged on one side, deviating from the sampling pipe, of the sleeve in a threaded mode.
Preferably, the movable assembly comprises an air bag arranged in the sampling tube and positioned at one side of the piston away from the through tube, one end of the expansion direction of the air bag is connected with one side of the piston away from the through tube, the other end of the air bag is connected with the inner wall of the sampling tube, and the sampling assembly further comprises an air pump for inflating or exhausting each air bag of the movable assembly.
Preferably, the blocking assembly comprises a plurality of sliding rods arranged in the sampling tube, the extending direction of each sliding rod is in the same direction as the moving direction of the piston, each sliding rod is arranged on the same side of the through pipe, the sliding rods are arranged on the outer side of the through pipe in a surrounding mode, the outer walls of the sliding rods are provided with retaining plates in a sliding mode, each outer wall of the sliding rods is sleeved with an elastic component, the elastic component is located on one side, close to the through pipe, of the retaining plates, a plug capable of blocking the through pipe is arranged on one side, close to the through pipe, of the retaining plates, and the elastic component is used for driving the plug to move towards one side, close to the through pipe, of the plug.
Preferably, a waterproof ring matched with the plug is arranged in the pipe wall of the through pipe in a surrounding mode.
Preferably, the cross section of the bearing rod and the inner hole of the sleeve are polygonal.
Preferably, the distribution direction of a plurality of sampling pipes is the same with the extending direction of carrier bar, carrier bar one end is equipped with the loading board, be equipped with the handle on the loading board, the position of handle is perpendicular to sampling pipe deviates from one side of carrier bar.
Preferably, the outer wall of the bearing rod is provided with scale bars.
According to the technical scheme, when a water source to be detected is sampled, firstly, the spacing distance between two sampling pipes is adjusted through the position adjusting component, then, the sampling pipes can conduct layered sampling on water of different water layers, one end of the bearing rod is perpendicular to the position below the water surface and is placed in the water, the sampling pipes are located below the water surface, then, the movable component drives the piston to move towards the end deviating from the through pipe, so that liquid is pumped into the sampling pipes through the through pipe, meanwhile, the liquid can push the blocking component to enable the blocking component to separate from blocking of the through pipe, after the piston stops moving, the blocking component rebounds and re-blocks the through pipe, and therefore mutual pollution of liquid in the sampling pipes and liquid of other water layers is prevented after sampling is completed; through the mutual cooperation between the structures, the technical problem that deep samples are easy to cross-pollute in shallow water layers is solved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a sampling component according to the present utility model;
FIG. 3 is a schematic view of the blocking assembly of the present utility model with the bladder driving the piston to move toward the side facing away from the blocking assembly;
FIG. 4 is a schematic view of the blocking assembly when the air bag stops driving the piston to move.
Reference numerals illustrate:
1. a carrier bar; 2. a sampling part; 21. a plug assembly; 211. a slide bar; 212. a retaining plate; 213. an elastic member; 214. a plug; 22. a piston; 23. an air bag; 24. an air pump; 25. a sampling tube; 26. a through pipe; 3. a position adjusting member; 31. a sleeve; 32. a bolt; 4. a carrying plate; 5. a handle.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
The utility model provides a device for preventing cross contamination of samples.
Referring to fig. 1 to 4, the device for preventing cross contamination of samples comprises a carrier bar 1 and a plurality of sampling members 2; the sampling part 2 comprises a closed sampling tube 25, one end of the sampling tube 25 is provided with a through tube 26 communicated with the inner space of the sampling tube 25, and the other end of the sampling tube 25 is provided with a position adjusting piece 3 which is used for enabling the sampling tube 25 to be arranged on the bearing rod 1 in a sliding manner;
a blocking component 21, a piston 22 and a movable component are arranged in the sampling tube 25; the piston 22 is arranged in the sampling tube 25 in a sliding manner, the blocking assembly 21 is arranged on one side, close to the through tube 26, of the piston 22, the movable assembly is arranged on one side, away from the blocking assembly 21, of the piston 22, the movable assembly is used for driving the piston 22 to slide in the sampling tube 25 towards one side, close to or away from the through tube 26, of the piston 22, and the blocking assembly 21 is used for blocking the through tube 26 after the sampling tube 25 is used for completing sampling.
In the technical scheme of the utility model, when sampling a water source to be detected, firstly, the spacing distance between two sampling pipes 25 is adjusted through a position adjusting component, then, the sampling pipes 25 can sample water of different water layers in a layering manner, then, one end of a bearing rod 1 is perpendicular to the lower part of the water surface and is positioned in the water, the sampling pipes 25 are positioned below the water surface, then, a movable component drives a piston 22 to move towards one end away from a through pipe 26, so that liquid is pumped into the sampling pipes 25 through the through pipe 26, and meanwhile, the liquid can push a blocking component 21 to enable the blocking component 21 to separate from blocking the through pipe 26, and after the piston 22 stops moving, the blocking component 21 rebounds and blocks the through pipe 26 again, so that mutual pollution of the liquid in the sampling pipes 25 and the liquid of other water layers is prevented; through the mutual cooperation between the structures, the technical problem that deep samples are easy to cross-pollute in shallow water layers is solved.
Referring to fig. 1, the position adjusting member 3 includes a sleeve 31 slidably sleeved on an outer wall of the carrier rod 1, the sleeve 31 is disposed on a side of the sampling tube 25 away from the through tube 26, and a bolt 32 capable of abutting against the outer wall of the carrier rod 1 is threaded on a side of the sleeve 31 away from the sampling tube 25. The sleeve 31 slides on the carrier rod 1 to adjust the distance between the two sampling pipes 25, so that different sampling pipes 25 can sample water in different water layers, and the position of the sampling pipe 25 can be fixed by abutting the bolt 32 with the carrier rod 1.
Referring to fig. 1-4, the movable assembly includes an air bag 23 disposed in a sampling tube 25 and located at a side of the piston 22 away from the through tube 26, one end of the air bag 23 in a telescopic direction is connected to a side of the piston 22 away from the through tube 26, and the other end is connected to an inner wall of the sampling tube 25, and the sampling assembly 2 further includes an air pump 24 for inflating or deflating each air bag 23 of each movable assembly. During sampling, the air pump 24 inflates the air bag 23 to reduce the volume of the air bag 23, the air bag 23 drives the piston 22 to move towards the side away from the blocking component 21, the blocking component 21 is separated from blocking the through pipe 26 while the piston 22 moves towards the side away from the blocking component 21, and then water enters the sampling pipe 25.
Referring to fig. 3, the blocking assembly 21 includes a plurality of sliding rods 211 disposed in the sampling tube 25, each sliding rod 211 extends in the same direction as the moving direction of the piston 22, each sliding rod 211 is disposed on the same side as the through tube 26, the plurality of sliding rods 211 are disposed around the outside of the through tube 26, the outer walls of the plurality of sliding rods 211 are slidably provided with a retaining plate 212, an elastic member 213 is sleeved on the outer wall of each sliding rod 211, the elastic member 213 is located on one side of the retaining plate 212 close to the through tube 26, a plug 214 for blocking the through tube 26 is disposed on one side of the retaining plate 212 close to the through tube 26, and the elastic member 213 is used for driving the plug 214 to move towards one side close to the through tube 26. When the piston 22 moves towards the side close to the blocking assembly 21, firstly, the plug 214 is pressed towards the side close to the piston 22, so that the plug 214 is separated from blocking with the through pipe 26, then the air bag 23 is inflated by the air pump 24, and the air bag 23 is inflated to push the piston 22 to move towards the side close to the blocking assembly 21;
during sampling, air in the air bag 23 is pumped out through the air pump 24, the air bag 23 contracts to drive the piston 22 to move towards the side deviating from the blocking component 21, the air pressure contraction in the sampling tube 25 drives the plug 214 to move towards the side close to the piston 22 while the piston 22 moves, so that the plug 214 is separated from the through tube 26, meanwhile, water outside the sampling tube 25 enters into the side of the inner wall of the sampling tube 25, close to the blocking component 21, of the piston 22 through the through tube 26, after the sampling is finished, the air pump 24 stops pumping out air in the air bag 23, and simultaneously the elastic component 213 drives the retaining plate 212 to move towards the side deviating from the piston 22, so that the plug 214 is inserted into the through tube 26 to block the through tube 26, and sample pollution is caused by water in the sampling tube 25 and water strings of other water layers after the sampling tube 25 is prevented.
Referring to fig. 3, a waterproof ring for matching with the plug 214 is disposed around the wall of the through pipe 26. The waterproof ring is used for reducing the gap between the plug 214 and the inner wall of the through pipe 26 when the plug 214 is inserted into the through pipe 26, so that water outside the sampling pipe 25 and water in the sampling pipe 25 are prevented from entering the sampling pipe 25, and pollution is caused to the water in the sampling pipe 25.
Referring to fig. 1, the cross section of the carrier bar 1 and the inner hole of the sleeve 31 are polygonal. The polygonal shape of the carrier bar 1 and the sleeve 31 enables the sleeve 31 to prevent the sleeve 31 from rotating on the carrier bar 1 when the sleeve 31 moves on the carrier bar 1.
Referring to fig. 1, the distribution direction of the plurality of sampling tubes 25 is the same as the extending direction of the carrier bar 1, one end of the carrier bar 1 is provided with a carrier plate 4, the carrier plate 4 is provided with a handle 5, and the position of the handle 5 is perpendicular to the side of the sampling tube 25 facing away from the carrier bar 1. The sampling tube 25 can sample water source through the handle 5, and the position of the handle 5 can enable the through tube 26 on the sampling tubes 25 to be parallel to the water surface when the handle is lifted to prevent cross contamination of the samples.
Referring to fig. 1, the outer wall of the carrying bar 1 is formed with scale bars. The distance between the two sampling tubes 25 can be known by the support rod 1 through the arrangement of the graduation strips.
The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather utilizing equivalent structural changes made in the present utility model description and drawings or directly/indirectly applied to other related technical fields are included in the scope of the present utility model.
Claims (8)
1. A device for preventing cross-contamination of a sample, comprising a carrier bar and a plurality of sampling members; the sampling component comprises a closed sampling tube, one end of the sampling tube is provided with a through tube communicated with the internal space of the sampling tube, and the other end of the sampling tube is provided with a position adjusting piece for enabling the sampling tube to be arranged on the bearing rod in a sliding manner;
a blocking component, a piston and a movable component are arranged in the sampling tube; the piston slides and sets up in the sampling tube, the setting of jam subassembly is in the piston be close to one side of siphunculus, the movable component sets up in one side that the piston deviates from the jam subassembly, the movable component is used for driving the piston and slides towards being close to or deviating from one side of siphunculus in the sampling tube, the jam subassembly is used for stopping up the siphunculus after the sampling is accomplished to the sampling tube.
2. The device for preventing cross contamination of samples according to claim 1, wherein the position adjusting member comprises a sleeve slidably sleeved on the outer wall of the carrier rod, the sleeve is arranged on one side of the sampling tube, which is away from the through pipe, and a bolt capable of abutting against the outer wall of the carrier rod is arranged on one side of the sleeve, which is away from the sampling tube, in a threaded manner.
3. The apparatus for preventing cross-contamination of a sample according to claim 1, wherein the movable members comprise air bags disposed in the sampling tube and located at a side of the piston facing away from the tube, one end of the air bag extending direction is connected to a side of the piston facing away from the tube, and the other end is connected to an inner wall of the sampling tube, and the sampling member further comprises an air pump for inflating or deflating each of the air bags of each of the movable members.
4. The device for preventing cross contamination of samples according to claim 1, wherein the blocking assembly comprises a plurality of sliding rods arranged in the sampling tube, the extending direction of each sliding rod is in the same direction as the moving direction of the piston, each sliding rod is arranged on the same side of the through tube, the plurality of sliding rods are arranged on the outer side of the through tube in a surrounding mode, the outer walls of the sliding rods are provided with a retaining plate in a sliding mode, the outer walls of the sliding rods are sleeved with elastic components, the elastic components are located on one side, close to the through tube, of the retaining plate, a plug capable of blocking the through tube is arranged on one side, close to the through tube, of the retaining plate, and the elastic components are used for driving the plug to move towards one side, close to the through tube, of the retaining plate.
5. The apparatus for preventing cross-contamination of a sample according to claim 4, wherein a waterproof ring for cooperating with the plug is provided around the inside of the wall of the tube.
6. The apparatus of claim 2, wherein the cross section of the carrier rod and the internal bore of the sleeve are polygonal.
7. The device for preventing cross contamination of samples according to claim 1, wherein the distribution direction of the plurality of sampling tubes is the same as the extending direction of the carrier rod, a carrier plate is arranged at one end of the carrier rod, a handle is arranged on the carrier plate, and the position of the handle is perpendicular to the side of the sampling tube away from the carrier rod.
8. The apparatus for preventing cross-contamination of samples as recited in claim 1, wherein the outer wall of the carrier bar is formed with graduation strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320871817.0U CN219870494U (en) | 2023-04-18 | 2023-04-18 | Device for preventing cross contamination of samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320871817.0U CN219870494U (en) | 2023-04-18 | 2023-04-18 | Device for preventing cross contamination of samples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219870494U true CN219870494U (en) | 2023-10-20 |
Family
ID=88342286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320871817.0U Active CN219870494U (en) | 2023-04-18 | 2023-04-18 | Device for preventing cross contamination of samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219870494U (en) |
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2023
- 2023-04-18 CN CN202320871817.0U patent/CN219870494U/en active Active
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