CN220084396U - Water quality sampling tube - Google Patents
Water quality sampling tube Download PDFInfo
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- CN220084396U CN220084396U CN202321102364.1U CN202321102364U CN220084396U CN 220084396 U CN220084396 U CN 220084396U CN 202321102364 U CN202321102364 U CN 202321102364U CN 220084396 U CN220084396 U CN 220084396U
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- sealing ring
- hole
- connecting rod
- elastic conical
- head
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- 238000005070 sampling Methods 0.000 title claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 238000007789 sealing Methods 0.000 claims abstract description 128
- 125000003003 spiro group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
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Abstract
The utility model discloses a water quality sampling cylinder, which comprises a cylinder body, a connecting rod and a balancing weight, wherein the middle part of the connecting rod is movably connected with the cylinder body, and the balancing weight is arranged right below the cylinder body and is connected with the bottom of the connecting rod, and is characterized in that: the inside of the cylinder body is provided with a sampling cavity, the top of the sampling cavity is provided with an upper hole communicated with the top of the cylinder body, the bottom of the sampling cavity is provided with a lower hole communicated with the bottom of the cylinder body, and the middle part of the connecting rod is movably connected with the upper hole and the lower hole; an upper sealing ring and a lower sealing ring are arranged on the outer surface of the connecting rod, the upper sealing ring is arranged below the upper hole, and the lower sealing ring is arranged below the lower hole; when the lower sealing ring is contacted with the bottom of the cylinder body, the upper sealing ring is contacted with the top surface of the sampling cavity, the lower sealing ring seals the bottom of the lower hole, and the upper sealing ring seals the bottom of the upper hole. The utility model has the advantages of wide application range and low cost.
Description
Technical Field
The utility model relates to the field of detection, in particular to a water quality sampling cylinder.
Background
When water quality is sampled, a sampling cylinder is generally utilized to sample the water quality.
In the prior art, referring to fig. 1, the sampling cylinder comprises a cylinder body, a connecting rod and a balancing weight, wherein the top of the cylinder body is provided with a sampling cavity, the bottom of the sampling cavity is provided with a through hole and the bottom of the cylinder body is communicated, the middle part of the connecting rod is movably arranged in the through hole, the balancing weight is positioned at the bottom of the cylinder body and is connected with the bottom of the connecting rod, the top of the connecting rod is connected with a connecting rope, the top surface of the balancing weight is provided with a sealing ring, and the through hole can be sealed when the top of the balancing weight moves upwards, so that the through hole is prevented from leaking downwards. When sampling, the sampling tube is placed on the water surface, the balancing weight and the connecting rod move downwards due to dead weight, the bottom of the through hole is opened, and water enters the sampling cavity from the bottom of the through hole until the cylinder body completely enters the water. Then, the connecting rope is pulled to move upwards to drive the connecting rod and the balancing weight to move upwards, the bottom of the through hole is blocked by the sealing ring, the cylinder is driven to move upwards, and then the cylinder filled with water moves upwards to finish sampling. However, in this structure, there are the following disadvantages:
1. when the water in the depth is needed to be sampled, although the barrel body stretches out to sample the water in the depth, the top of the sampling cavity is directly contacted with the water outside, so that the water in the depth in the sampling cavity can be replaced by the water in the upper layer in the process of moving up the barrel body, and when the sampling barrel is separated from the water surface, the water in the depth reserved in the sampling barrel can be less, so that the sampling effect of the water in the depth is poor, and other sampling modes are needed;
2. the sampling tube is only suitable for collecting water at the upper layer, is not suitable for adopting water at the deep position, and has high cost when special deep water sampling equipment is used for sampling the water at the deep position.
Disclosure of Invention
The utility model aims to provide a water quality sampling cylinder, which can be used for sampling deep water, so that the application range is improved, and the cost is reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a water quality sampling tube comprises a tube body, a connecting rod and a balancing weight, wherein the middle part of the connecting rod is movably connected with the tube body, the balancing weight is arranged right below the tube body and is connected with the bottom of the connecting rod,
the inside of the cylinder is provided with a sampling cavity, the top of the sampling cavity is provided with an upper hole communicated with the top of the cylinder, the bottom of the sampling cavity is provided with a lower hole communicated with the bottom of the cylinder, the upper hole and the lower hole are coaxially arranged, the middle part of the connecting rod is movably connected with the upper hole and the lower hole, and the diameter of the connecting rod is smaller than that of the upper hole and the lower hole;
an upper sealing ring and a lower sealing ring are arranged on the outer surface of the connecting rod, the upper sealing ring is arranged below the upper hole, and the lower sealing ring is arranged below the lower hole;
when the lower sealing ring is contacted with the bottom of the cylinder body, the upper sealing ring is contacted with the top surface of the sampling cavity, the lower sealing ring seals the bottom of the lower hole, and the upper sealing ring seals the bottom of the upper hole.
In the above technical scheme, the size of the balancing weight is larger than the diameter of the lower hole, and the bottom surface of the lower sealing ring is propped against the top surface of the balancing weight.
In the above technical scheme, the top spiro union of connecting rod has a rings, the diameter of rings is greater than the diameter of upper hole, rings set up in directly over the barrel, the last link rope that has been hung of rings.
In the above technical scheme, a space is reserved between the hanging ring and the upper sealing ring.
In the technical scheme, the bottom of the cylinder body is provided with the conical head with the upper size and the lower size, and the bottom of the lower hole is communicated with the bottom of the conical head.
In the technical scheme, an upper elastic conical sealing head which is coaxially arranged is arranged on the outer surface of the connecting rod at the top of the upper sealing ring, a lower elastic conical sealing head which is coaxially arranged is arranged on the outer surface of the connecting rod at the top of the lower sealing ring, and the upper elastic conical sealing head and the lower elastic conical sealing head are of conical structures with small upper parts and large lower parts;
when the upper sealing ring abuts against the top surface of the sampling cavity, the upper elastic conical sealing head is inserted into the upper hole, and the outer surface of the upper elastic conical sealing head abuts against the inner wall of the upper hole;
when the lower sealing ring is propped against the bottom surface of the cylinder body, the lower elastic conical sealing head is inserted into the lower hole, and the outer surface of the lower elastic conical sealing head is propped against the inner wall of the lower hole.
In the technical scheme, the upper elastic conical sealing head and the upper sealing ring are of an integrated structure, and the bottom of the upper elastic conical sealing head is connected with the top surface of the upper sealing ring;
the lower elastic conical sealing head and the lower sealing ring are of an integrated structure, and the bottom surface of the lower elastic conical sealing head is connected with the top surface of the lower sealing ring.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. according to the utility model, the upper sealing ring and the lower sealing ring are arranged on the connecting rod, so that shallow water can be gradually replaced with deep water when the cylinder body enters water, and in the lifting process of the cylinder body, the upper sealing ring and the lower sealing ring are utilized to block the upper hole and the lower hole, so that the cylinder body is of a sealing structure, water in the sampling depth of the cylinder body can be stored and cannot be replaced by the water above, the sampling of deep water can be realized, the application range is improved, special deep water sampling equipment is not needed, and the sampling cost is reduced.
Drawings
FIG. 1 is a schematic view of a first embodiment of the present utility model;
FIG. 2a is a schematic structural diagram of the first embodiment of the present utility model during sampling (during the process of moving the cylinder downward, the cylinder is on the water surface, and the upper sealing ring and the lower sealing ring seal the upper hole and the lower hole);
FIG. 2b is a schematic structural diagram of the sampling process in the first embodiment of the present utility model (the cylinder, the counterweight and the connecting rod continue to sink into the water, the upper hole and the lower hole are opened, the water enters the sampling cavity from the lower hole, and part of the bottom of the cylinder enters the water);
FIG. 2c is a schematic structural diagram of the first embodiment of the present utility model (the cylinder, the counterweight and the connecting rod continue to sink into the water, the water fills the sampling cavity, the upper hole and the lower hole are in an open state, and the cylinder completely enters the water);
FIG. 3a is a schematic structural diagram of the sampling process (pulling up the pull rope to drive the balancing weight, the connecting rod and the cylinder to move upwards), wherein the upper sealing ring and the lower sealing ring respectively block the upper hole and the lower hole, the cylinder is partially separated from the water surface, and the sampling cavity is filled with water);
fig. 3b is a schematic structural diagram of the sampling process in the first embodiment of the present utility model (the pull rope pulls up to drive the balancing weight, the connecting rod and the cylinder to move upwards, the upper sealing ring and the lower sealing ring respectively plug the upper hole and the lower hole, the cylinder is completely separated from the water surface, and the sampling cavity is filled with water).
Wherein: 1. a cylinder; 2. a connecting rod; 3. balancing weight; 4. a sampling cavity; 5. an upper hole; 6. a lower hole; 7. an upper sealing ring; 8. a lower sealing ring; 9. a nut; 10. a hanging ring; 11. a connecting rope; 12. water; 13. a conical head; 14. an upper elastic conical sealing head; 15. a lower elastic conical sealing head.
Detailed Description
The utility model is further described below with reference to the accompanying drawings and examples:
embodiment one: referring to fig. 1-3 b, a water quality sampling tube comprises a tube body 1, a connecting rod 2 and a balancing weight 3, wherein the middle part of the connecting rod is movably connected with the tube body, the balancing weight is arranged under the tube body and is connected with the bottom of the connecting rod,
the inside of the cylinder is provided with a sampling cavity 4, the top of the sampling cavity is provided with an upper hole 5 communicated with the top of the cylinder, the bottom of the sampling cavity is provided with a lower hole 6 communicated with the bottom of the cylinder, the upper hole and the lower hole are coaxially arranged, the middle part of the connecting rod is movably connected with the upper hole and the lower hole, and the diameter of the connecting rod is smaller than that of the upper hole and the lower hole;
an upper sealing ring 7 and a lower sealing ring 8 are arranged on the outer surface of the connecting rod, the upper sealing ring is arranged below the upper hole, and the lower sealing ring is arranged below the lower hole;
when the lower sealing ring is contacted with the bottom of the cylinder body, the upper sealing ring is contacted with the top surface of the sampling cavity, the lower sealing ring seals the bottom of the lower hole, and the upper sealing ring seals the bottom of the upper hole. The bottom of the lower sealing ring is propped against the top surface of the balancing weight, the middle part of the connecting rod is in threaded connection with a nut 9, the bottom of the upper sealing ring is propped against the top surface of the nut, and the upper sealing ring is limited by the nut.
The top spiro union of connecting rod has a rings 10, rings's diameter is greater than the diameter of upper hole, rings set up in just above the barrel, the last connection rope 11 that has been hung of rings.
In this embodiment, during actual use, an operator grabs the end of the connecting rope, then puts the cylinder into the water 12, the cylinder floats on the water surface due to the existence of the sampling cavity, the balancing weight drives the connecting rod to move downwards due to the dead weight of the balancing weight and the connecting rod, and then drives the upper sealing ring and the lower sealing ring to move downwards, and the upper hole and the lower hole are separated from the bottom of the upper hole and the bottom of the lower hole respectively, so that the upper hole, the sampling cavity and the lower hole are communicated, water can flow into the sampling cavity directly upwards from the lower hole, the cylinder also sinks into the water along with falling until the water completely fills the sampling cavity, the balancing weight and the connecting rod move downwards along with the falling water of the cylinder enters the sampling cavity from the lower hole until the cylinder sinks to a preset position, or a little below the preset position (the pull rope stops dropping), the water in the sampling cavity is basically fully filled with the water at the lower part (the water at the upper layer flows out of the upper hole, the water at the lower layer flows in from the lower hole and is extruded out of the upper hole), then the sampling personnel grabs the pull rope to lift upwards, in the process, the connecting rod and the balancing weight are pulled upwards, so that the upper sealing ring and the lower sealing ring are driven to synchronously move upwards until the lower sealing ring abuts against the bottom surface of the cylinder, the cylinder is towed, at the moment, the upper sealing ring is contacted with the bottom surface of the upper hole, the bottoms of the upper hole and the lower hole are sealed, then the top of the cylinder is subjected to water pressure in the process of continuously lifting upwards by the pull rope, the cylinder is provided with downward pressure, and the balancing weight is provided with upward pulling force, so that the upper sealing ring and the lower sealing ring are pressed tightly, the upper hole and the lower hole are blocked, so that water in the sampling cavity cannot flow out in the upward moving process of the cylinder body, external water cannot enter the sampling cavity, sampling of deep water can be realized, special equipment is not needed for sampling the deep water, the cost is lower, the sampling device is applicable to sampling of water in different depths, the application range is wider, and the cost is lower.
The size of the balancing weight is larger than the diameter of the lower hole, and the bottom surface of the lower sealing ring abuts against the top surface of the balancing weight. In the process of upward movement of the balancing weight, the balancing weight can be abutted on the bottom surface of the cylinder body, so that the cylinder body is supported, and the cylinder body is driven to move upward.
And a space is reserved between the hanging ring and the upper sealing ring. This gives the link a space to move up and down, and can open and close the upper and lower holes.
Referring to fig. 1-3 b, the bottom of the cylinder body is provided with a conical head 13 with a big top and a small bottom, and the bottom of the lower hole is communicated with the bottom of the conical head.
In this embodiment, the conical head is arranged so as to play a role in guiding the cone when the cylinder sinks into the water, thereby accelerating a sinking speed.
Referring to fig. 1-3 b, an upper elastic conical sealing head 14 coaxially arranged is arranged on the outer surface of the connecting rod at the top of the upper sealing ring, a lower elastic conical sealing head 15 coaxially arranged is arranged on the outer surface of the connecting rod at the top of the lower sealing ring, and the upper elastic conical sealing head and the lower elastic conical sealing head are of conical structures with small upper part and large lower part;
the upper elastic conical sealing head and the upper sealing ring are of an integrated structure, and the bottom of the upper elastic conical sealing head is connected with the top surface of the upper sealing ring;
the lower elastic conical sealing head and the lower sealing ring are of an integrated structure, and the bottom surface of the lower elastic conical sealing head is connected with the top surface of the lower sealing ring.
When the upper sealing ring abuts against the top surface of the sampling cavity, the upper elastic conical sealing head is inserted into the upper hole, and the outer surface of the upper elastic conical sealing head abuts against the inner wall of the upper hole;
when the lower sealing ring is propped against the bottom surface of the cylinder body, the lower elastic conical sealing head is inserted into the lower hole, and the outer surface of the lower elastic conical sealing head is propped against the inner wall of the lower hole.
Through the setting of upper and lower elasticity toper sealing head, increase a sealed effect of upper and lower sealing washer, prevent at barrel lifting process, the water in the sampling chamber flows out, and outside water enters into the sampling chamber, guarantees the quality and the qualified performance of sampling.
Claims (7)
1. The utility model provides a water quality sampling tube, includes barrel, connecting rod and balancing weight, the middle part of connecting rod with the barrel removes to link to each other, the balancing weight set up in under the barrel, and with the connecting rod bottom links to each other, its characterized in that:
the inside of the cylinder is provided with a sampling cavity, the top of the sampling cavity is provided with an upper hole communicated with the top of the cylinder, the bottom of the sampling cavity is provided with a lower hole communicated with the bottom of the cylinder, the upper hole and the lower hole are coaxially arranged, the middle part of the connecting rod is movably connected with the upper hole and the lower hole, and the diameter of the connecting rod is smaller than that of the upper hole and the lower hole;
an upper sealing ring and a lower sealing ring are arranged on the outer surface of the connecting rod, the upper sealing ring is arranged below the upper hole, and the lower sealing ring is arranged below the lower hole;
when the lower sealing ring is contacted with the bottom of the cylinder body, the upper sealing ring is contacted with the top surface of the sampling cavity, the lower sealing ring seals the bottom of the lower hole, and the upper sealing ring seals the bottom of the upper hole.
2. The water sampling cartridge of claim 1, wherein: the size of the balancing weight is larger than the diameter of the lower hole, and the bottom surface of the lower sealing ring is propped against the top surface of the balancing weight.
3. The water sampling cartridge of claim 1, wherein: the top spiro union of connecting rod has a rings, the diameter of rings is greater than the diameter of upper hole, rings set up in directly over the barrel, the last joint rope that has hung of rings.
4. A water sampling cartridge according to claim 3, wherein: and a space is reserved between the hanging ring and the upper sealing ring.
5. The water sampling cartridge of claim 1, wherein: the bottom of the cylinder body is provided with a conical head with a large upper part and a small lower part, and the bottom of the lower hole is communicated with the bottom of the conical head.
6. The water sampling cartridge of claim 1, wherein: an upper elastic conical sealing head which is coaxially arranged is arranged on the outer surface of the connecting rod at the top of the upper sealing ring, a lower elastic conical sealing head which is coaxially arranged is arranged on the outer surface of the connecting rod at the top of the lower sealing ring, and the upper elastic conical sealing head and the lower elastic conical sealing head are of conical structures with small upper parts and large lower parts;
when the upper sealing ring abuts against the top surface of the sampling cavity, the upper elastic conical sealing head is inserted into the upper hole, and the outer surface of the upper elastic conical sealing head abuts against the inner wall of the upper hole;
when the lower sealing ring is propped against the bottom surface of the cylinder body, the lower elastic conical sealing head is inserted into the lower hole, and the outer surface of the lower elastic conical sealing head is propped against the inner wall of the lower hole.
7. The water sampling cartridge of claim 6, wherein: the upper elastic conical sealing head and the upper sealing ring are of an integrated structure, and the bottom of the upper elastic conical sealing head is connected with the top surface of the upper sealing ring;
the lower elastic conical sealing head and the lower sealing ring are of an integrated structure, and the bottom surface of the lower elastic conical sealing head is connected with the top surface of the lower sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321102364.1U CN220084396U (en) | 2023-05-09 | 2023-05-09 | Water quality sampling tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321102364.1U CN220084396U (en) | 2023-05-09 | 2023-05-09 | Water quality sampling tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220084396U true CN220084396U (en) | 2023-11-24 |
Family
ID=88831264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321102364.1U Active CN220084396U (en) | 2023-05-09 | 2023-05-09 | Water quality sampling tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220084396U (en) |
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2023
- 2023-05-09 CN CN202321102364.1U patent/CN220084396U/en active Active
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