CN216717879U - Small-bore drilling groundwater depthkeeping sampler - Google Patents
Small-bore drilling groundwater depthkeeping sampler Download PDFInfo
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- CN216717879U CN216717879U CN202122917245.9U CN202122917245U CN216717879U CN 216717879 U CN216717879 U CN 216717879U CN 202122917245 U CN202122917245 U CN 202122917245U CN 216717879 U CN216717879 U CN 216717879U
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Abstract
The utility model discloses a small-caliber drilling underground water depth-keeping sampler, which comprises a sampling bottle, wherein the lower end of the sampling bottle is provided with a water inlet pipe, a check valve is arranged on the water inlet pipe in a threaded manner, a bottom plate is inserted in the sampling bottle, a pre-tightening spring is arranged at the upper end of the bottom plate, a bottle cap is arranged at the upper end of the sampling bottle in a threaded manner, an exhaust mechanism is arranged at the upper end of the bottle cap, a pressure regulating mechanism is arranged in the middle of the bottle cap, a fixing stud is arranged at the upper end of the bottle cap, a long rod is connected to the fixing stud in a threaded manner, a filter screen is arranged at the lower end of the water inlet pipe in a threaded manner, and the sampling bottle is provided with the pressure regulating mechanism, the exhaust mechanism and the pre-tightening spring bottom plate, the bottom plate can be pressed and sealed with the water inlet of the sampling bottle by the pre-tightening spring before reaching the sampling depth, the pressure regulating mechanism is adjusted according to the sampling depth, so that the sampling bottle can reach the sampling depth, and then the bottom plate is jacked up by pressure difference to enable water to enter the sampling bottle, a pneumatic control element is not needed, the structure is simplified, and the cost is saved.
Description
Technical Field
The utility model belongs to the technical field of underground water sampling, and particularly relates to a small-caliber drilling underground water depth-fixing sampler.
Background
In the groundwater pollution investigation work, a sampling bottle, a sampling cylinder and other common samplers are generally used for collecting groundwater samples. When the sampling is carried out at a fixed depth, a pneumatic valve is generally arranged on a sampling bottle, the valve is closed before the sampling depth is reached, and the valve is controlled to be opened by an air source and a pneumatic element after the sampling depth is reached so as to carry out sampling.
At present, when depth setting sampling is carried out, a pneumatic element with a complex structure needs to be arranged on a sampling bottle, an external air source and a control mechanism need to be connected, the whole structure is complex, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a small-caliber drilling underground water depth-keeping sampler, which aims to solve the problems of complex structure and high cost in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a small-bore drilling groundwater depthkeeping sampler, includes the sampling bottle, the sampling bottle lower extreme is provided with the inlet tube, the inlet tube upper end is provided with the drain pipe, the pipe cap is installed to the screw thread on the drain pipe, the check valve is installed to the screw thread on the inlet tube, the bottom plate is equipped with in the interpolation of sampling bottle, the bottom plate upper end is provided with the pretension spring, the bottle lid is installed to sampling bottle upper end screw thread, the bottle lid upper end is provided with exhaust mechanism, be provided with pressure regulating mechanism in the middle of the bottle lid, the bottle lid upper end is provided with fixing stud, threaded connection has the stock on the fixing stud.
Preferably, the lower end of the sampling bottle is provided with a water inlet, the lower end of the bottom plate is provided with a sealing lug, and the sealing lug is inserted into the water inlet.
Preferably, the lower end of the water inlet pipe is provided with a filter screen in a threaded manner.
Preferably, the exhaust mechanism comprises an exhaust hose, a connecting seat is arranged at the upper end of the bottle cap, the lower end of the exhaust hose is installed in the connecting seat in a threaded mode, an exhaust hole is formed in the upper end of the bottle cap, a chamfer groove is formed in the lower end of the exhaust hole, a net box is arranged at the lower end of the bottle cap, and a floating ball is arranged in the net box.
Preferably, pressure regulating mechanism includes the support, the support sets up in the bottle lid upper end, the support upper end is provided with the swivel nut, the screw rod is installed to the swivel nut internal thread, both ends are provided with knob and depression bar respectively about the screw rod, the scale has been carved on the depression bar surface, be equipped with the shoulder hole in the middle of the bottle lid, the downthehole cartridge of shoulder hole has the sealing washer, the clamping ring is installed to the shoulder hole upper end, the depression bar lower extreme passes in the sealing washer extends the sampling bottle, the depression bar lower extreme is provided with the connecting plate, the clamp plate is installed to the connecting plate lower extreme, the clamp plate lower extreme supports and presses in the pretension spring upper end.
Preferably, the lower end of the pressing plate is provided with a limiting groove, and the upper end of the pre-tightening spring is inserted into the limiting groove.
Preferably, the lower end of the long rod is provided with a threaded blind hole, and the upper end of the long rod is provided with a threaded connecting column.
Compared with the prior art, the utility model has the beneficial effects that: through set up pressure regulating mechanism, exhaust mechanism and pretension spring bottom plate on the sampling bottle, can make the bottom plate compress tightly the water inlet of sealed sampling bottle before reaching the sampling depth through the pretension spring, in making water get into the sampling bottle through pressure differential jack-up bottom plate after making the sampling bottle reach the sampling depth according to sampling depth adjustment pressure regulating mechanism, need not to use gas accuse component, simplify the structure and practice thrift the cost.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged view of a in fig. 1 according to the present invention.
In the figure: 1. the device comprises a sampling bottle, 2. a water inlet pipe, 3. a one-way valve, 4. a bottom plate, 5. a pre-tightening spring, 6. a bottle cap, 7. an exhaust mechanism, 8. a pressure regulating mechanism, 9. a fixing stud, 10. a long rod, 11. a filter screen, 101. a water inlet, 201. a water outlet pipe, 202. a pipe cap, 401. a sealing lug, 601. an exhaust hole, 602. a chamfer angle groove, 701. an exhaust hose, 702. a connecting seat, 703. a net box, 704. a floating ball, 801. a support, 802. a screw sleeve, 803. a screw, 804. a knob, 805. a pressure lever, 806. a sealing ring, 807. a pressure ring, 808. a connecting plate and 809. a pressure plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a small-bore drilling groundwater depth sampler, including a sampling bottle 1, a water inlet pipe 2 welded to a lower end of the sampling bottle 1, a water outlet pipe 201 welded to an upper end of the water inlet pipe 2, the water outlet pipe 201 being communicated with the water inlet pipe 2, a pipe cap 202 installed to the water outlet pipe 201 by a thread, a check valve 3 installed to the water inlet pipe 2 by a thread to prevent backflow of a water sample during sampling, a bottom plate 4 inserted into the sampling bottle 1 for plugging the water inlet pipe 2, a pre-tightening spring 5 welded to an upper end of the bottom plate 4 for providing pressure to the bottom plate 4, a bottle cap 6 installed to the upper end of the sampling bottle 1 by a thread, an exhaust mechanism 7 installed to an upper end of the bottle cap 6 for exhausting air in the sampling bottle 1 during sampling to enable the water sample to enter the sampling bottle 1, a pressure regulating mechanism 8 installed in the middle of the bottle cap 6 for regulating the pre-tightening pressure of the pre-tightening spring 5, a fixing stud 9 welded to an upper end of the bottle cap 6, threaded connection has stock 10 on the fixing stud 9, conveniently holds stock 10 and will take a sample bottle 1 to visit in the drilling well.
Referring to fig. 1 and 2, a water inlet 101 is formed at the lower end of the sampling bottle 1, a sealing protrusion 401 is cast at the lower end of the bottom plate 4, and the sealing protrusion 401 is inserted into the water inlet 101 to ensure that the bottom plate 4 seals and blocks the water inlet 101. The filter screen 11 is installed to the lower extreme screw thread of inlet tube 2, prevents that debris from blockking up inlet tube 2. The exhaust mechanism 7 comprises an exhaust hose 701, a connecting seat 702 is welded at the upper end of the bottle cap 6, the lower end of the exhaust hose 701 is installed in the connecting seat 702 in a threaded mode, the exhaust hose 701 is communicated with the inside of the sampling bottle 1, an exhaust hole 601 is formed in the upper end of the bottle cap 6, a chamfer groove 602 is formed in the lower end of the exhaust hole 601, a net box 703 is welded at the lower end of the bottle cap 6, a floating ball 704 is placed in the net box 703, the floating ball 704 can float upwards to block the exhaust hole 601 with a water sample after the water sample enters the sampling bottle 1, the chamfer groove 602 can play a guiding role when the floating ball 704 floats upwards, and the exhaust hole 601 can be blocked by the floating ball 704. The pressure regulating mechanism 8 comprises a support 801, the support 801 is welded at the upper end of a bottle cap 6, a threaded sleeve 802 is welded at the upper end of the support 801, a screw 803 is installed on the internal thread of the threaded sleeve 802, a knob 804 and a pressure lever 805 are respectively welded at the upper end and the lower end of the screw 803, scales are engraved on the surface of the pressure lever 805, the length of a pre-tightening spring 5 which is compressed can be conveniently confirmed, and therefore the pressure on the upper end of a bottom plate 4 can be confirmed, a stepped hole is formed in the middle of the bottle cap 6, a sealing ring 806 is inserted into the stepped hole and can be prevented from leaking a water sample, a pressing ring 807 is installed at the upper end of the stepped hole through a screw and used for fixing the pressing ring 807, the lower end of the pressure lever 805 penetrates through the sealing ring 806 and extends into a sampling bottle 1, a connecting plate 808 is welded at the lower end of the pressure lever 805, a pressing plate 809 is installed at the lower end of the connecting plate 808, a pressing plate 809 abuts against the upper end of the pre-tightening spring 5 and is used for compressing the pre-tightening spring 5. The lower end of the pressing plate 809 is provided with a limiting groove, and the upper end of the pre-tightening spring 5 is inserted in the limiting groove and used for limiting the pre-tightening spring 5. The stock 10 lower extreme is equipped with the screw thread blind hole, and stock 10 upper end car system has the screw thread spliced pole, conveniently uses a plurality of stock 10 equipment, applicable in the drilling sample of various different degree of depth.
The working principle of the embodiment is as follows: when the device is used, a water pressure value of the depth is calculated according to the sampling depth, then the pretightening force of the pretightening spring 5 is adjusted through the pressure regulating mechanism 8 according to the water pressure value, the knob 804 is rotated to drive the pressing rod 805 to move downwards, meanwhile, the compression length of the pretightening spring 5 is confirmed according to the scale on the pressing rod 805, then, a proper amount of long rod 10 is assembled for use according to the drilling depth and the sampling depth, then, the long rod 10 is held by hand to stretch the sampling bottle 1 into the drilling hole, after the sampling bottle 1 reaches the preset depth, the water pressure on the lower end of the bottom plate 4 is greater than the pressure of the pretightening spring 5, the bottom plate 4 is jacked up due to the action of pressure difference, a water sample enters the sampling bottle 1 through the water inlet 101, air in the sampling bottle 1 is discharged, at the same time, the upper end of the exhaust hose 701 can detect that air flow is discharged, then downward stretching is stopped, when the sampling bottle 1 is filled with the water sample, the floating ball 704 can float to block the exhaust hole 601 upwards in a floating way, at this moment, the upper end of the exhaust hose 701 cannot detect the air flow to be exhausted, which indicates that the sampling bottle 1 is full, then the sampling bottle 1 is taken out through the long rod 10, and then the sampling is collected through the drain pipe 201.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (7)
1. The utility model provides a small-bore drilling groundwater depthkeeping sampler which characterized in that: including sampling bottle (1), sampling bottle (1) lower extreme is provided with inlet tube (2), inlet tube (2) upper end is provided with drain pipe (201), nut (202) are installed to the screw thread on drain pipe (201), check valve (3) are installed to the screw thread on inlet tube (2), bottom plate (4) are equipped with in sampling bottle (1) interpolation, bottom plate (4) upper end is provided with pretension spring (5), sample bottle (1) upper end screw thread installs bottle lid (6), bottle lid (6) upper end is provided with exhaust mechanism (7), be provided with pressure regulating mechanism (8) in the middle of bottle lid (6), bottle lid (6) upper end is provided with fixing stud (9), threaded connection has stock (10) on fixing stud (9).
2. A small bore borehole groundwater depth sampler according to claim 1, wherein: the sampling bottle (1) lower extreme is equipped with water inlet (101), bottom plate (4) lower extreme is provided with sealing convex block (401), sealing convex block (401) are inserted and are established in water inlet (101).
3. A small bore borehole groundwater depth sampler according to claim 1, wherein: the lower end of the water inlet pipe (2) is provided with a filter screen (11) in a threaded manner.
4. A small bore borehole groundwater depth sampler according to claim 1, wherein: exhaust mechanism (7) are including exhaust hose (701), bottle lid (6) upper end is provided with connecting seat (702), threaded mounting is in connecting seat (702) in exhaust hose (701) lower extreme, bottle lid (6) upper end is equipped with exhaust hole (601), exhaust hole (601) lower extreme is equipped with chamfer groove (602), bottle lid (6) lower extreme is provided with net box (703), be provided with floater (704) in net box (703).
5. A small bore borehole groundwater depth sampler according to claim 1, wherein: the pressure regulating mechanism (8) comprises a bracket (801), the bracket (801) is arranged at the upper end of the bottle cap (6), the upper end of the bracket (801) is provided with a threaded sleeve (802), a screw rod (803) is installed in the threaded sleeve (802) through internal threads, the upper end and the lower end of the screw rod (803) are respectively provided with a knob (804) and a pressure lever (805), scales are carved on the surface of the pressure lever (805), a stepped hole (603) is arranged in the middle of the bottle cap (6), a sealing ring (806) is inserted in the stepped hole (603), a pressing ring (807) is arranged at the upper end of the stepped hole (603), the lower end of the pressure rod (805) passes through the sealing ring (806) and extends into the sampling bottle (1), the lower end of the pressure lever (805) is provided with a connecting plate (808), the lower end of the connecting plate (808) is provided with a pressure plate (809), and the lower end of the pressure plate (809) is pressed against the upper end of the pre-tightening spring (5).
6. A small-bore borehole groundwater depth sampler according to claim 5, wherein: the lower end of the pressure plate (809) is provided with a limit groove, and the upper end of the pre-tightening spring (5) is inserted in the limit groove.
7. A small-bore borehole groundwater depth sampler according to claim 1, wherein: the lower end of the long rod (10) is provided with a threaded blind hole, and the upper end of the long rod (10) is provided with a threaded connecting column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122917245.9U CN216717879U (en) | 2021-11-25 | 2021-11-25 | Small-bore drilling groundwater depthkeeping sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122917245.9U CN216717879U (en) | 2021-11-25 | 2021-11-25 | Small-bore drilling groundwater depthkeeping sampler |
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| Publication Number | Publication Date |
|---|---|
| CN216717879U true CN216717879U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122917245.9U Active CN216717879U (en) | 2021-11-25 | 2021-11-25 | Small-bore drilling groundwater depthkeeping sampler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288525A (en) * | 2023-09-25 | 2023-12-26 | 宁波华东核工业勘察设计院集团有限公司 | Prospecting hole water sampling device |
-
2021
- 2021-11-25 CN CN202122917245.9U patent/CN216717879U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288525A (en) * | 2023-09-25 | 2023-12-26 | 宁波华东核工业勘察设计院集团有限公司 | Prospecting hole water sampling device |
| CN117288525B (en) * | 2023-09-25 | 2024-06-04 | 宁波华东核工业勘察设计院集团有限公司 | Prospecting hole water sampling device |
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