CN216640642U - Dull and stereotyped rotary gate formula precipitation well plugging device - Google Patents
Dull and stereotyped rotary gate formula precipitation well plugging device Download PDFInfo
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- CN216640642U CN216640642U CN202122508848.3U CN202122508848U CN216640642U CN 216640642 U CN216640642 U CN 216640642U CN 202122508848 U CN202122508848 U CN 202122508848U CN 216640642 U CN216640642 U CN 216640642U
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Abstract
The utility model relates to a flat plate rotating gate type plugging device for a dewatering well, which comprises a bottom sealing steel plate, a fastening bolt, a sliding pad, a countersunk screw, a rotating steel plate, a twisting clamping pin, a gasket, a fastening nut, a steel sleeve and a T-shaped spanner, and is characterized in that: the bottom sealing steel plate, the sliding pad and the rotating steel plate are all provided with water outlet holes, the bottom sealing steel plate is fixed at the bottom of the steel sleeve, a fixing bolt is welded in a plug mode through a hole in the middle of the bottom sealing steel plate, the sliding pad, the rotating steel plate and a gasket sequentially penetrate through the fixing bolt, and the top of the fastening bolt is screwed in a fastening nut and is tightened and compacted; the sliding pad is fixed on the bottom sealing steel plate, and water outlet holes of the bottom sealing steel plate and the sliding pad are aligned up and down; two twisting bayonet locks are symmetrically welded and fixed at the top of the rotating steel plate close to the circle center, and two clamping grooves at the bottom of the T-shaped wrench are matched with the two twisting bayonet locks; the T-shaped wrench is rotated to drive the rotating steel plate to rotate, so that sealing and water stopping are realized. The utility model is applied to the plugging construction of a common pressure-bearing dewatering well, has simple structure, can improve the construction efficiency, reduce the leakage and save the cost.
Description
Technical Field
The utility model belongs to the field of building engineering, relates to a plugging device for a basement bottom plate reserved dewatering well in building engineering construction, and particularly relates to a flat rotary gate type dewatering well plugging device.
Background
In the construction process of the building engineering, in order to ensure that the construction water level is below 500mm of the construction working surface, generally, well digging and dewatering are carried out before earthwork excavation, a well hole is reserved on a structural bottom plate during the construction of the basement structure, and plugging is carried out until outdoor earthwork backfilling is completed. The traditional plugging method of the dewatering well comprises the following steps:
1. and (4) embedding a steel sleeve, fixing a capping cover plate by a pipe flange, and not carrying out pump sealing. The method is suitable for dewatering wells with small confined water head and slow water level rise, and has small application range and complex working procedures.
2. Pre-burying a steel sleeve, welding a well sealing steel plate, plugging a fire-fighting plug, and sealing a well with a pump. The method is suitable for the dewatering well with a large confined water head, has the defects of difficult field welding, incapability of ensuring the quality and incapability of recycling the submersible pump, and is uneconomical.
2. Embedding a steel sleeve, switching a small-caliber water outlet pipe for drainage, and finally closing the valve. The device is suitable for dewatering wells with large confined water heads, is troublesome to operate, has low efficiency and needs to be provided with a self-sucking pump.
Disclosure of Invention
The utility model overcomes the defects of time-consuming, labor-consuming, tedious and uneconomical existing in the existing well sealing scheme, solves the problems of difficult sealing, leakage and the like of the dewatering well, provides the flat rotary gate type dewatering well sealing device, realizes rotary sealing and water stopping, can be applied to the sealing construction of common dewatering wells and pressure-bearing dewatering wells, and has wide application range; the device simple structure, the processing is easy, simple to operate, can repeat the switching, and the shut-in well is efficient, and the seepage risk is low, practices thrift the cost.
The technical scheme of the utility model is as follows:
the utility model provides a dull and stereotyped rotatory floodgate formula precipitation well plugging device, includes back cover steel sheet, fastening bolt, sliding pad, countersunk screw, rotates the steel sheet, twists reverse bayonet lock, packing ring, fastening nut, steel sleeve, T type spanner, its characterized in that: the bottom sealing steel plate, the sliding pad and the rotating steel plate are all provided with water outlet holes, the bottom sealing steel plate is fixed at the bottom of the steel sleeve, a fixing bolt is welded in a plug mode through a hole in the middle of the bottom sealing steel plate, the sliding pad, the rotating steel plate and a gasket sequentially penetrate through the fixing bolt, and the top of the fastening bolt is screwed in a fastening nut and is tightened and compacted; the sliding pad is fixed on the bottom sealing steel plate, and water outlet holes of the bottom sealing steel plate and the sliding pad are aligned up and down; two torsion bayonet locks are symmetrically welded and fixed at the top of the rotating steel plate close to the circle center, two clamping grooves at the bottom of the T-shaped wrench are matched with the two torsion bayonet locks, and the rotating T-shaped wrench drives the rotating steel plate to rotate so as to realize closed water stop.
The utility model also comprises a water-stopping wing ring, wherein the water-stopping wing ring is welded at the waist part of the outer side of the steel sleeve, and the diameter of the water-stopping wing ring is the same as that of the bottom sealing steel plate. The hydrofoil ring is convenient to weld the fixed steel sleeve on the bottom plate reinforcing steel bar, reduces the displacement of concreting in-process, and the sleeve is embedded and fixed more firmly after the concrete hardens, can effectively reduce groundwater seepage risk.
5201-2 silicone grease is evenly coated on the contact surface of the sliding pad and the rotating steel plate.
The washer is a drag reduction washer and is used for reducing the resistance between the rotating steel plate and the fastening nut.
The back cover steel plate and the rotating steel plate are both mirror surface stainless steel plates with the thickness of 5 mm. The thickness and the diameter of the steel plate can be adjusted according to the water head pressure and the caliber of the dewatering well in construction, and the steel plate is guaranteed to have enough rigidity to resist external force and not to deform.
The sliding pad and the gasket are made of polytetrafluoroethylene materials, and can also be made of modified polytetrafluoroethylene materials, but enough compressive strength and small friction coefficient must be ensured.
The sliding pad penetrates through the countersunk hole through a countersunk screw to be fixed on the back cover steel plate. The surface of the PTFE plate can be treated by sodium naphthalene treatment liquid according to the situation and then bonded by glue, but the sealing property of the contact surface is ensured.
The fastening nut is a locknut, so that the fastening force of the nut is ensured to be stable for a long time without loosening and attenuation.
The T-shaped wrench is made of a circular steel tube with the diameter of 35mm, and the bottom of the T-shaped wrench is cut into two clamping grooves. The diameter, the thickness and the length of the handle of the round steel can be adjusted according to the size of the fastening bolt and the fastening nut.
The torsion bayonet is made of a 3mm steel plate and can be adjusted according to the size of the torsion moment.
The water outlet hole can be repeatedly opened and closed by operating the T-shaped wrench. The water outlet hole can be used for conveniently dewatering through the small-caliber submersible pump.
The utility model is applied to the construction of building engineering, is convenient to operate, can improve the construction efficiency and saves the cost.
Drawings
Figure 1 is a schematic cross-sectional view of the present invention in use.
FIG. 2 is a schematic view of the T-wrench of the present invention.
Fig. 3 is a schematic view of the internal construction of the present invention.
FIG. 4 is a schematic illustration of a steel sleeve of the present invention.
Fig. 5 is a schematic view of the water outlet opening state of the present invention.
Fig. 6 is a schematic view of the water outlet hole closed state of the present invention.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings:
as shown in fig. 1-6, the utility model comprises a back cover steel plate 1, a fastening bolt 2, a Polytetrafluoroethylene (PTFE) sliding pad 3, a countersunk screw 4, a rotating steel plate 5, a torsion bayonet 6, a PTFE washer 7, a fastening nut 8, a steel sleeve 9, a water stop wing ring 10 and a T-shaped wrench 11, and is characterized in that: the water-stopping wing ring 10 is welded at the waist part of the outer side of the steel sleeve 9, the water-stopping wing ring 10 is convenient for welding and fixing the steel sleeve 9 on the bottom plate steel bar, the displacement in the concrete pouring process is reduced, the sleeve is more firmly embedded after the concrete is hardened, and the risk of underground water leakage can be effectively reduced; the lower end of a steel sleeve 9 is welded with a back cover steel plate 1 with the same diameter as the water stop wing ring 10, countersunk holes and water outlet holes k are reserved on the back cover steel plate 1 and a PTFE sliding pad 3, a rotating steel plate 5 is provided with the water outlet holes k, a fixing bolt 2 is welded in a penetrating way in the middle of the back cover steel plate 1, the PTFE sliding pad 3, the rotating steel plate 5 and a resistance-reducing PTFE washer 7 sequentially penetrate through the fixing bolt 2, the PTFE sliding pad 3 penetrates through the countersunk holes through a countersunk screw 4 and is fixed on the back cover steel plate 1, the water outlet holes of the back cover steel plate 1 and the PTFE sliding pad 3 are aligned up and down, 5201-2 silicone grease is uniformly coated on the contact surface of the PTFE sliding pad 3 and the rotating steel plate 5, two torsion clamp pins 6 are symmetrically welded and fixed at the position, which is close to the center of the circle, the top of the fastening bolt 2 is screwed into a fastening nut 8 for tightening and compacting, and the fastening nut 8 is a check nut; two clamping grooves at the bottom of the T-shaped wrench 11 are matched with the two twisting bayonet locks 6, the two clamping grooves at the bottom of the T-shaped wrench 11 clamp the two twisting bayonet locks 6, and the wrench 11 is rotated to drive the rotating steel plate 5 to rotate, so that sealing and water stopping are realized. And (3) pouring impervious micro-expansive concrete which has the strength higher than that of the bottom plate by one grade in the steel sleeve 9. The back cover steel plate 1 and the rotating steel plate 5 are mirror surface stainless steel plates with the thickness of 5 mm. The T-shaped wrench 11 is made of a circular steel tube with the diameter of 35mm, and the bottom of the T-shaped wrench is cut into two clamping grooves. The twisting bayonet 6 is made of a 3mm steel plate.
A use method of a flat rotary gate type dewatering well plugging device comprises the following steps:
after the basement floor concrete bed course is poured, before waterproofing membrane spreads and pastes, begin to install dull and stereotyped rotatory floodgate formula precipitation well plugging device, guarantee its center and precipitation well center coincidence, back cover steel sheet 1 bottom and waterproofing membrane bottom are the same height, and steel sleeve 9 diameter is not less than precipitation well diameter, and waterproofing membrane spreads and pastes time delay and extends back cover steel sheet 1 upper portion, guarantees the anti-length in the top. The flat rotary gate type dewatering well plugging device needs to be welded and fixed on the bottom plate reinforcing steel bars through reinforcing steel bars, reinforcing ribs are arranged according to requirements, and displacement is avoided when bottom plate concrete pouring is guaranteed.
And after the outdoor earthwork is backfilled, stopping precipitation and then starting well sealing. Before the dull and stereotyped rotatory floodgate formula precipitation well plugging device apopore was closed, take out the immersible pump earlier, drop into the aggregate that the permeability is better such as cobble, fine sand to 1 end elevation height of back cover steel sheet from the apopore, can pack the non-woven fabrics group and prevent that the orifice gravel from flowing, clearance apopore debris around the apopore keeps clean, install T type spanner this moment, slowly twist, rotate 90 degrees and accomplish the apopore and seal, observe the apopore seepage condition, if there is not the infiltration condition alright pour concrete backfill steel sleeve.
Claims (10)
1. The utility model provides a dull and stereotyped rotatory floodgate formula precipitation well plugging device, includes back cover steel sheet, fastening bolt, sliding pad, countersunk screw, rotates the steel sheet, twists reverse bayonet lock, packing ring, fastening nut, steel sleeve, T type spanner, its characterized in that: the bottom sealing steel plate, the sliding pad and the rotating steel plate are all provided with water outlet holes, the bottom sealing steel plate is fixed at the bottom of the steel sleeve, a fixing bolt is welded in a plug mode through a hole in the middle of the bottom sealing steel plate, the sliding pad, the rotating steel plate and a gasket sequentially penetrate through the fixing bolt, and the top of the fastening bolt is screwed in a fastening nut and is tightened and compacted; the sliding pad is fixed on the bottom sealing steel plate, and water outlet holes of the bottom sealing steel plate and the sliding pad are aligned up and down; two twisting bayonet locks are symmetrically welded and fixed at the top of the rotating steel plate close to the circle center, and two clamping grooves at the bottom of the T-shaped wrench are matched with the two twisting bayonet locks.
2. The plugging device for plate rotating gate type dewatering well according to claim 1, characterized in that: the water-stopping wing ring is welded at the waist part of the outer side of the steel sleeve, and the diameter of the water-stopping wing ring is the same as that of the bottom-sealing steel plate.
3. The plugging device for plate rotating gate type dewatering well according to claim 1, characterized in that: 5201-2 silicone grease is evenly coated on the contact surface of the sliding pad and the rotating steel plate.
4. The plugging device for plate rotating gate type dewatering well according to claim 1, characterized in that: the gasket is a drag reduction gasket.
5. The plugging device for plate rotating gate type dewatering well according to claim 1, characterized in that: the bottom sealing steel plate and the rotating steel plate are mirror surface stainless steel plates with the thickness of 5 mm.
6. The plugging device for plate rotating gate type dewatering well according to claim 4, characterized in that: the sliding pad and the gasket are made of polytetrafluoroethylene materials.
7. The plugging device for plate rotating gate type dewatering well according to claim 1, characterized in that: the sliding pad penetrates through the countersunk hole through a countersunk screw to be fixed on the back cover steel plate.
8. The plugging device for plate rotating gate type dewatering well according to claim 1, characterized in that: the fastening nut is a locknut.
9. The plugging device for plate rotating gate type dewatering well according to claim 1, characterized in that: the T-shaped wrench is made of a circular steel tube with the diameter of 35mm, and the bottom of the T-shaped wrench is cut into two clamping grooves.
10. The plugging device for plate rotating gate type dewatering well according to claim 1, characterized in that: the twisting bayonet is made of a 3mm steel plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122508848.3U CN216640642U (en) | 2021-10-18 | 2021-10-18 | Dull and stereotyped rotary gate formula precipitation well plugging device |
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| CN202122508848.3U CN216640642U (en) | 2021-10-18 | 2021-10-18 | Dull and stereotyped rotary gate formula precipitation well plugging device |
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| CN216640642U true CN216640642U (en) | 2022-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897989A (en) * | 2021-10-18 | 2022-01-07 | 中建三局第二建设安装有限公司 | Dull and stereotyped rotary gate formula precipitation well plugging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897989A (en) * | 2021-10-18 | 2022-01-07 | 中建三局第二建设安装有限公司 | Dull and stereotyped rotary gate formula precipitation well plugging device |
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