CN218716655U - Sealing device for artesian well - Google Patents
Sealing device for artesian well Download PDFInfo
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- CN218716655U CN218716655U CN202222702670.0U CN202222702670U CN218716655U CN 218716655 U CN218716655 U CN 218716655U CN 202222702670 U CN202222702670 U CN 202222702670U CN 218716655 U CN218716655 U CN 218716655U
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Abstract
The utility model discloses a well sealing device flows automatically, including outer pit shaft, interior pit shaft, sealed case and water drainage tank, wherein: the outer well shaft is arranged in the artesian well; the outer diameter of the inner shaft is smaller than the inner diameter of the outer shaft, the inner shaft is arranged in the outer shaft, and the outer wall of the lower end of the inner shaft is connected with the inner wall of the outer shaft in a sealing manner; the sealing valve core comprises a sealing rod, a floating ball and a first limiting piece, wherein a sealing cone and a guide cylinder are sequentially arranged on the sealing rod from bottom to top, the sealing rod penetrates through the inner well bore, the floating ball is fixedly connected with the lower end of the sealing rod, the first limiting piece is detachably and fixedly connected with the upper end of the sealing rod, and the first limiting piece and the upper end of the inner well bore form limiting; the drainage channel is arranged on the outer wall of the outer shaft and communicated with the part of the outer shaft, which is positioned above the lower end of the inner shaft, and a drainage port is arranged on one side, away from the outer shaft, of the drainage channel. The self-flowing well sealing device not only has excellent sealing effect, but also can be quickly switched on and off, and conducts diversion on the confined water, thereby being beneficial to orderly monitoring and sampling of the confined water.
Description
Technical Field
The utility model relates to a groundwater monitoring technology field especially relates to a well sealing device flows automatically.
Background
The artesian well is formed by that pressure-bearing water can flow out of the ground surface under favorable terrain conditions, namely when the ground surface is lower than a pressure-bearing water level. Groundwater has two different types of burial, namely submerged, buried above a first stable water barrier and confined water, buried between two stable water barriers. The well drilled into the submersible is a submersible. The water-resisting layer top plate is perforated, the well drilled in the bearing water is called the bearing well, and the water in the bearing well can be upward gushed to the height equivalent to the local bearing water level along the drill hole due to the influence of hydrostatic pressure.
For long-term monitoring of underground water, a wellhead of the artesian well needs to be sealed and intercepted by a sealing device, a common sealing mode is to add a well cover and connect the well cover with the artesian well wellhead through a flange plate, for example, the sealing device of the artesian well monitoring wellhead with the publication number of CN207660581U and the sealing device of the artesian well monitoring well with the publication number of CN 213116234U. However, the pressure of the confined water in the artesian well is often great, and when the well lid needs to be opened, the confined water is often splashed, on one hand, the well lid can be blocked by the installation and the removal of the well lid, on the other hand, the clothes and the carried equipment of workers can be wetted, the surrounding environment is damaged, and adverse effects are caused to the confined water monitoring and sampling work.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art current situation, provide a well sealing device flows automatically, based on above-mentioned design, this well sealing device flows automatically not only sealed effect splendid, can realize quick switch moreover to having carried out the water conservancy diversion to the confined water, having avoided opening the in-process confined water and having splashed everywhere, do benefit to the confined water monitoring sampling work and go on in order.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a sealing device for a artesian well comprises an outer shaft, an inner shaft, a sealing valve core and a drainage groove;
the outer wellbore is disposed in a gravity flow well;
the outer diameter of the inner shaft is smaller than the inner diameter of the outer shaft, the inner shaft is arranged in the outer shaft, and the outer wall of the lower end of the inner shaft is connected with the inner wall of the outer shaft in a sealing manner;
the sealing valve core comprises a sealing rod, a floating ball and a first limiting piece;
the sealing rod is sequentially provided with a sealing cone and a guide column body from bottom to top, the maximum diameter of the sealing cone is larger than the inner diameter of the inner shaft, the minimum diameter of the sealing cone is smaller than the inner diameter of the inner shaft, one end of the minimum diameter of the sealing cone is positioned above one end of the maximum diameter of the sealing cone, the guide column body is matched with the inner diameter of the inner shaft, the guide column body is provided with a plurality of water guide holes penetrating through the upper end face and the lower end face of the guide column body, the sealing rod is arranged in the inner shaft in a penetrating manner, the upper end of the sealing rod is positioned outside the inner shaft, the guide column body arranged on the sealing rod is positioned in the inner shaft, and the lower end of the sealing rod is positioned in the outer shaft;
the floating ball is fixedly connected with the lower end of the sealing rod;
the first limiting piece is detachably and fixedly connected with the upper end of the sealing rod and forms limiting with the upper end of the inner well casing;
the drainage groove is arranged on the outer wall of the outer shaft and communicated with the part of the outer shaft, which is positioned above the lower end of the inner shaft, and a drainage port is arranged on one side, away from the outer shaft, of the drainage groove.
Furthermore, the sealing device further comprises a spring and a second limiting part, wherein the spring is sleeved above the guide cylinder on the sealing rod and is positioned in the inner shaft, the second limiting part is fixed on the inner shaft, and the upper end and the lower end of the spring are respectively abutted against the second limiting part and the guide cylinder.
Furthermore, the second locating part is the end cover of fixing on the upper end of the inner well shaft, the top surface of the end cover is provided with a water permeable hole, the diameter of the water permeable hole is larger than the outer diameter of the sealing rod, the sealing rod penetrates through the water permeable hole, and the upper end of the spring is abutted to the top surface of the end cover.
Further, be equipped with the retaining member in the lateral wall of outer pit shaft, retaining member and the lateral wall threaded connection of outer pit shaft, when first locating part is less than the retaining member, there is the clearance between interior pit shaft lower extreme and the sealed cone.
Furthermore, a triangular weir plate is arranged in the drainage groove.
Furthermore, a filter screen is arranged at the communication position of the drainage groove and the outer shaft.
Further, outer pit shaft upper end is equipped with the well lid, and the well lid is detained and is established on outer pit shaft.
Further, the sealing rod is integrally formed with the sealing cone and the guide cylinder.
Further, the outer well bore and the inner well bore are integrally formed.
The utility model has the advantages that:
compared with the prior art, the artesian well sealing device adopts an inner-outer shaft structure, a sealing valve core is arranged in the inner shaft, the sealing rod is continuously supported through the buoyancy of pressure-bearing water to the floating ball, and the sealing cone on the sealing rod seals and intercepts the lower end of the inner shaft, so that the artesian well mouth is sealed; when the wellhead of the artesian well needs to be opened, the first limiting piece is directly pressed, the sealing rod moves downwards, the confined water upwards gushes out of the inner shaft from the gap between the lower end of the inner shaft and the sealing cone, and finally flows out of the outer shaft and the drainage groove. Based on the above design, this well sealing device that flows automatically not only sealed effect is splendid, can realize quick switch moreover to carry out the water conservancy diversion to the confined water, avoid opening the in-process confined water and splash everywhere, do benefit to the confined water and monitor the sample work and go on in order.
Drawings
Fig. 1 is a schematic structural view of the self-flowing well sealing device of the present invention;
fig. 2 is a schematic structural view of the sealing rod of the present invention.
Description of the labeling: 1. the water-permeable drainage device comprises an outer shaft, 2, a well cover, 3, an inner shaft, 4, a locking piece, 5, a drainage groove, 5-1, a drainage port, 6, a triangular weir plate, 7, a filter screen, 8, an end cover, 8-1, a water permeable hole, 9, a spring, 10, a sealing rod, 11, a sealing cone, 12, a guide cylinder, 12-1, a water guide hole, 13, a floating ball, 14 and a first limiting piece.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1-2, a sealing device for a artesian well comprises an outer well casing 1, an inner well casing 3, a sealing valve core and a drainage channel 5.
The outer wellbore 1 is arranged in a artesian well as a wellhead of the artesian well. The upper end of the outer shaft 1 is provided with a well cover 2, and the well cover 2 is buckled on the outer shaft 1.
The outer diameter of the inner shaft 3 is smaller than the inner diameter of the outer shaft 1, the inner shaft is arranged in the outer shaft 1, and the outer wall of the lower end of the inner shaft 3 is connected with the inner wall of the outer shaft 1 in a sealing mode.
Preferably, the outer wellbore 1 is formed integrally with the inner wellbore 3 and both are arranged coaxially.
The sealing valve core comprises a sealing rod 10, a floating ball 13 and a first limiting member 14, wherein:
a sealing cone 11 and a guide column 12 are sequentially arranged on the sealing rod 10 from bottom to top, the maximum diameter of the sealing cone 11 is larger than the inner diameter of the inner shaft 3, the minimum diameter is smaller than the inner diameter of the inner shaft 3, one end of the minimum diameter is positioned above one end of the maximum diameter (namely, an inverted cone structure), the guide column 12 is matched with the inner diameter of the inner shaft 3, a plurality of water guide holes 12-1 penetrating through the upper end face and the lower end face of the guide column 12 are arranged on the guide column 12, the sealing rod 10 is arranged in the inner shaft 3 in a penetrating manner, the upper end of the sealing rod is positioned outside the inner shaft 3, the guide column 12 arranged on the sealing rod is positioned in the inner shaft 3, and the lower end of the sealing rod is positioned in the outer shaft 1;
the floating ball 13 is fixedly connected with the lower end of the sealing rod 10;
the first limiting member 14 is detachably and fixedly connected with the upper end of the sealing rod 10, and forms a limiting position with the upper end of the inner well casing 3. In one embodiment, the first limiting member 14 is a circular disk structure, and has a diameter larger than the inner diameter of the inner well bore 3, and the first limiting member 14 is in threaded connection with the sealing rod 10.
Preferably, the sealing rod 10 is integrally formed with the sealing cone 11 and the guide cylinder 12.
The assembly sequence of the sealing valve core is as follows: before the outer shaft 1 and the inner shaft 3 are installed, the floating ball 13 is connected with the lower end of the sealing rod 10, then the sealing rod 10 penetrates out of the lower end of the inner shaft 3, and finally the first limiting piece 14 is connected with the upper end of the sealing rod 10. After the assembly is completed, the outer shaft 1 and the inner shaft 3 can be installed.
The drainage channel 5 is arranged on the outer wall of the outer shaft 1 and is communicated with the part of the outer shaft 1, which is positioned above the lower end of the inner shaft 3, and a drainage port 5-1 is arranged on one side of the drainage channel 5, which is far away from the outer shaft 1.
For flow monitoring, a triangular weir plate 6 is arranged in the drainage groove 5.
In order to prevent sundries from entering the outer shaft 1, a filter screen 7 is arranged at the communication part of the drainage groove 5 and the outer shaft 1.
The utility model adopts an inner-outer shaft structure, a sealing valve core is arranged in the inner shaft 3, the sealing rod 10 is continuously supported by the buoyancy of the bearing water to the floating ball 13, and the sealing cone 11 on the sealing rod 10 seals and intercepts the lower end of the inner shaft 3, thereby sealing the well mouth of the artesian well; when the mouth of the artesian well needs to be opened, the first limit piece 14 is directly pressed, so that the sealing rod 10 moves downwards, the confined water gushes out of the inner well bore 3 upwards from the gap between the lower end of the inner well bore 3 and the sealing cone 11, and finally flows out through the outer well bore 1 and the drainage groove 5.
According to the technical scheme, the sealing device further comprises a spring 9 and a second limiting piece, the spring 9 is sleeved above the guide cylinder 12 on the sealing rod 10 and is located in the inner shaft 3, the second limiting piece is fixed on the inner shaft 3, and the upper end and the lower end of the spring 9 are respectively abutted against the second limiting piece and the guide cylinder 12.
As one embodiment, the second limiting member is an end cover 8 fixed at the upper end of the inner well shaft 3, a water permeable hole 8-1 is formed in the top surface of the end cover 8, the diameter of the water permeable hole 8-1 is larger than the outer diameter of the sealing rod 10, the sealing rod 10 penetrates through the water permeable hole 8-1, and the upper end of the spring 9 abuts against the top surface of the end cover 8.
Specifically, since there is uncertainty in the pressure of the pressurized water, there may be a case where it is difficult for the first stopper 14 to be pressed downward. For this purpose, the first stopper 14 can be pushed down with assistance by adding the spring 9 against the pressure of the pressurized water.
After the spring 9 and the end cover 8 are additionally arranged, the assembly sequence of the sealing valve core is as follows: before installing outer shaft 1, interior well barrel 3, be connected floater 13 and sealing rod 10 lower extreme, wear out sealing rod 10 upwards from interior well barrel 3 lower extreme again, wear to establish spring 9 and end cover 8 on sealing rod 10 afterwards to link to each other end cover 8 and interior well barrel 3, be connected first locating part 14 and sealing rod 10 upper end at last. After the assembly is completed, the outer shaft 1 and the inner shaft 3 can be installed.
According to the technical scheme, the locking piece 4 is arranged in the side wall of the outer shaft 1, the locking piece 4 is in threaded connection with the side wall of the outer shaft 1, and when the first limiting piece 14 is lower than the locking piece 4, a gap exists between the lower end of the inner shaft 3 and the sealing cone 11.
Specifically, when the wellhead of the artesian well needs to be opened, the first limiting member 14 is directly pressed, so that the sealing rod 10 moves downward, and when the first limiting member 14 is lower than the locking member, the locking member 4 is rotated to be located above the first limiting member 14, so that the first limiting member 14 is prevented from moving upward. At this moment, artesian well wellhead is in the open mode, and the pressure-bearing water flow direction is: lower end of inner well bore 3 → water guide hole 12-1 → upper end of inner well bore 3 → water drain tank 5.
Generally speaking, based on above-mentioned design, this well sealing device that flows automatically is not only sealed effect splendid, can realize fast switch moreover to carry out the water conservancy diversion to the confined water, avoid opening in-process confined water and splash everywhere, do benefit to the confined water and monitor that the sample work goes on in order.
Of course, the above is only the preferred embodiment of the present invention, and the application range of the present invention is not limited thereto, so all the equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A self-flowing well sealing device is characterized in that: comprises an outer shaft, an inner shaft, a sealing valve core and a drainage groove;
the outer wellbore is disposed in a gravity flow well;
the outer diameter of the inner shaft is smaller than the inner diameter of the outer shaft, the inner shaft is arranged in the outer shaft, and the outer wall of the lower end of the inner shaft is connected with the inner wall of the outer shaft in a sealing manner;
the sealing valve core comprises a sealing rod, a floating ball and a first limiting piece;
the sealing rod is sequentially provided with a sealing cone and a guide column body from bottom to top, the maximum diameter of the sealing cone is larger than the inner diameter of the inner shaft, the minimum diameter of the sealing cone is smaller than the inner diameter of the inner shaft, one end of the minimum diameter of the sealing cone is positioned above one end of the maximum diameter of the sealing cone, the guide column body is matched with the inner diameter of the inner shaft, the guide column body is provided with a plurality of water guide holes penetrating through the upper end face and the lower end face of the guide column body, the sealing rod is arranged in the inner shaft in a penetrating manner, the upper end of the sealing rod is positioned outside the inner shaft, the guide column body arranged on the sealing rod is positioned in the inner shaft, and the lower end of the sealing rod is positioned in the outer shaft;
the floating ball is fixedly connected with the lower end of the sealing rod;
the first limiting piece is detachably and fixedly connected with the upper end of the sealing rod and forms limiting with the upper end of the inner well casing;
the drainage groove is arranged on the outer wall of the outer shaft and communicated with the part of the outer shaft, which is positioned above the lower end of the inner shaft, and a drainage port is arranged on one side, away from the outer shaft, of the drainage groove.
2. The gravity flow well seal according to claim 1, wherein: the sealing rod is sleeved with the spring, the spring is located in the inner shaft, the second limiting piece is fixed to the inner shaft, and the upper end and the lower end of the spring abut against the second limiting piece and the guide cylinder respectively.
3. A gravity flow well sealing device according to claim 2, wherein: the second locating part is the end cover of fixing at the upper end of the inner shaft, the top surface of the end cover is provided with a water permeable hole, the diameter of the water permeable hole is larger than the outer diameter of the sealing rod, the sealing rod penetrates through the water permeable hole, and the upper end of the spring is abutted to the top surface of the end cover.
4. The gravity flow well seal according to claim 1, wherein: be equipped with the retaining member in the lateral wall of outer pit shaft, the retaining member is connected with the lateral wall threaded connection of outer pit shaft, and when first locating part was less than the retaining member, there was the clearance between interior pit shaft lower extreme and the sealed cone.
5. The gravity flow well seal according to claim 1, wherein: a triangular weir plate is arranged in the drainage groove.
6. A artesian well sealing device according to claim 1 or 5, wherein: and a filter screen is arranged at the communication part of the drainage groove and the outer shaft.
7. The gravity flow well seal according to claim 1, wherein: the upper end of the outer shaft is provided with a well cover which is buckled on the outer shaft.
8. The gravity flow well seal according to claim 1, wherein: the sealing rod, the sealing cone and the guide column body are integrally formed.
9. The gravity flow well seal according to claim 1, wherein: the outer well bore and the inner well bore are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222702670.0U CN218716655U (en) | 2022-10-12 | 2022-10-12 | Sealing device for artesian well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222702670.0U CN218716655U (en) | 2022-10-12 | 2022-10-12 | Sealing device for artesian well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218716655U true CN218716655U (en) | 2023-03-24 |
Family
ID=85585189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222702670.0U Active CN218716655U (en) | 2022-10-12 | 2022-10-12 | Sealing device for artesian well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218716655U (en) |
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2022
- 2022-10-12 CN CN202222702670.0U patent/CN218716655U/en active Active
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