CN219175302U - Plugging device for plugging dewatering well - Google Patents

Abstract

The application relates to a plugging device for dewatering well shutoff especially relates to dewatering well shutoff technical field, be equipped with the well pipe in the dewatering well, the plugging device is located the top of well pipe, and it includes: the apron at well pipe top is located, one side that the apron is close to the well pipe is equipped with four limiting plates that are used for restricting the apron and remove, four limiting plates are located around the apron respectively, limiting plates and the outer wall butt of well pipe are equipped with the delivery port on the apron, delivery port department fixedly connected with outlet pipe, the outlet pipe sets up perpendicularly with the apron, the one end that the apron was kept away from to the outlet pipe is equipped with the end cover, and this application has the effect of simplifying the shutoff process, reduction of erection time.

Description

Plugging device for plugging dewatering well

Technical Field

The application relates to the technical field of plugging of dewatering wells, in particular to a plugging device for plugging of dewatering wells.

Background

In recent years, urban construction is continuously developed, and the depth of underground structures is continuously extended downwards. The deeper the building pit, the more groundwater will be encountered. In order to ensure the safety of the open cut foundation pit, enough dewatering wells are required to be arranged to reduce the underground water level, and plugging after the dewatering well structure is completed is a great difficulty in the construction process.

Referring to FIG. 1, the advanced water-stop plugging technology of dewatering well comprises a log plug 11 customized according to the inner diameter size of the dewatering well 19, wherein one end of the log plug 11 is 10-15 mm smaller than the inner diameter of a pipe well, and the other end of the log plug is 300-500 mm equal to the inner diameter of the pipe well in diameter; closing the power supply of the water pump of the dewatering well 19 to be plugged when plugging, pulling out the water pump in the dewatering well 19, stopping pumping water, and installing the round wood plug 11; one end of the round wood plug 11 with the smaller diameter is downward, and the round wood plug 11 is continuously hammered downward by a large hammer; when the round wooden plug 11 is hammered to a designated position, 4-6 nails 12 are hammered into the top of the round wooden plug 11 for wedging, the diameter of the round wooden plug 11 is expanded, the round wooden plug 11 is tightly attached to the periphery of a downcomer well, and groundwater infiltration is prevented; after the round wooden plug 11 is installed, filling and isolating are carried out by adopting micro-expansion waterproof anti-corrosion concrete 13 in the range of the top of the round wooden plug and a plugging steel plate 14300 mm; after the isolation layer concrete is initially set, washing and cleaning up the rust slag, concrete slag and other garbage on the reserved water stop steel plate 15, and performing closed welding on the plugging steel plate 14 of the dewatering well 19 and the reserved water stop steel plate 15 by adopting fillet weld after airing or drying; after the welding of the plugging steel plate 14 is completed and the acceptance is qualified, roughening and cleaning the bottom plate concrete poured around the dewatering well 19, installing the top bottom plate steel bars at the position of the dewatering well 19, and compacting by vibrating the micro-expansion waterproof concrete 16 with a strength grade higher than that of the bottom plate concrete; after the concrete pouring is completed, covering the concrete with a plastic film and a cotton felt, and maintaining the concrete for at least 14 days. Thus, the plugging construction of the dewatering well 19 is completed.

Aiming at the related technology, when the dewatering well is plugged, a round wooden plug is needed to be installed, the round wooden plug is large in volume, the installation is inconvenient, and a plurality of people are needed to cooperate; meanwhile, due to complex construction and complex structure, the subsequent steel bar binding is inconvenient, and the construction period is prolonged.

Disclosure of Invention

In order to improve the loaded down with trivial details problem of construction, this application provides a plugging device for dewatering well shutoff.

The plugging device for plugging a dewatering well adopts the following technical scheme:

a plugging device for plugging a dewatering well, wherein a well pipe is arranged in the dewatering well, the plugging device is positioned at the top of the well pipe, and the plugging device comprises: the well casing is characterized by comprising a cover plate arranged at the top of the well casing, four limiting plates used for limiting the movement of the cover plate are arranged on one side, close to the well casing, of the cover plate, the four limiting plates are respectively located around the cover plate, the limiting plates are in butt joint with the outer wall of the well casing, a water outlet is formed in the cover plate, a water outlet pipe is fixedly connected to the water outlet, the water outlet pipe is perpendicular to the cover plate, and an end cover is arranged at one end, far away from the cover plate, of the water outlet pipe.

By adopting the technical scheme, when the dewatering well is plugged, the cover plate is arranged at the top of the well pipe, then the cover plate is limited by the limiting plate, finally, after the well pipe is filled with concrete, the cover plate is arranged for sealing, and the dewatering well is simple in integral structure, easy and convenient to operate and capable of being carried out by one person, thereby greatly reducing the construction period and reducing the labor cost and the material cost.

Optionally, the limiting plate is angle steel, angle steel fixed connection is on the apron, angle steel and apron contact's a part is on a parallel with the apron, angle steel and apron vertically a part and the outer wall butt of well pipe.

By adopting the technical scheme, the angle steel is fixed on the cover plate, and the cover plate is only required to be buckled on the top of the well pipe during installation, so that the operation is simple, and the installation efficiency is high; meanwhile, the materials are simple and easy to obtain, and the manufacturing cost is low.

Optionally, the end cover is provided with an internal thread, one side of the water outlet pipe away from the cover plate is provided with an external thread matched with the end cover, and the end cover is in threaded connection with the water outlet pipe.

By adopting the technical scheme, the sealing of the water outlet pipe only needs to be screwed into the end cover, and the water outlet pipe is simple and reliable.

Optionally, a sealing block is arranged on one side of the end cover close to the water outlet pipe, and the sealing block is abutted with the water outlet pipe.

By adopting the technical scheme, under the cooperation of the screw thread, the sealing block can be abutted between the water outlet pipe and the end cover, so that the sealing is further enhanced.

Optionally, the end cover is provided with anti-skid patterns.

By adopting the technical scheme, the possibility of hand sliding during rotation of the end cover can be reduced, so that the operation is more convenient.

Optionally, the limiting plate is the baffle, the baffle is the cuboid setting, the baffle is perpendicular with the apron, two that parallel is equipped with the double-end screw rod between the baffle, the screw thread opposite direction at double-end screw rod both ends, double-end screw rod and baffle threaded connection.

Through adopting above-mentioned technical scheme, rotate the double-end screw rod and can make two parallel baffles remove towards the direction that is close to each other for the baffle presss from both sides tight well pipe, thereby accomplishes the fixed to the apron, and fixed effectual, thereby guarantee the shutoff effect of apron.

Optionally, a rubber pad is arranged on one side of the baffle close to the well pipe, and the rubber pad is abutted with the outer wall of the well pipe.

Through adopting above-mentioned technical scheme, the area of contact between baffle and the well pipe can be increased to the rubber pad to strengthen the fixed effect of baffle to the apron.

Optionally, the end of the double-ended screw rod is provided with a butterfly handle.

Through adopting above-mentioned technical scheme, the setting of butterfly handle conveniently grips the double-end screw rod for it is more convenient to rotate the double-end screw rod.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the wellhead is plugged, the cover plate is covered, the peripheral angle steel is abutted against the outer wall of the well pipe, the cover plate is limited to move along the horizontal direction, the end cover can be screwed after filling concrete, and the water outlet pipe is sealed. The operation process is simple, and the construction period is reduced; simple structure, light overall weight, easy operation by one person and convenient use.

2. The setting of double-end screw rod can make two parallel baffles press from both sides tight well pipe to guarantee the fixed effect of apron, thereby guarantee the shutoff effect.

Drawings

FIG. 1 is a schematic diagram of a structure of the background art;

FIG. 2 is a schematic overall structure of embodiment 1 of the present application;

FIG. 3 is a schematic view showing the internal structure of embodiment 1 of the present application;

fig. 4 is a schematic view of a structure for showing angle steel according to embodiment 1 of the present application;

FIG. 5 is a schematic structural view of embodiment 2 of the present application;

fig. 6 is a schematic view for showing the structure of a twin-screw according to example 2 of the present application.

Reference numerals: 11. a round wood plug; 12. horse nails; 13. micro-expansion waterproof and anti-corrosion concrete; 14. plugging the steel plate; 15. a water-stopping steel plate; 16. micro-expansion waterproof concrete; 17. the bottom plate is made of concrete; 18. a cushion layer; 19. dewatering well; 2. a well pipe; 3. a cover plate; 31. a water outlet; 4. a water outlet pipe; 5. an end cap; 51. anti-skid lines; 6. angle steel; 7. a baffle; 71. a rubber pad; 8. a double-ended screw; 9. butterfly handles; 10. ground surface.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

Example 1

The embodiment of the application discloses plugging device for plugging a dewatering well. Referring to fig. 2, a dewatering well 19 is arranged below the ground 10, a well pipe 2 is arranged in the dewatering well 19, the well pipe 2 is a circular pipe, a plugging device is arranged at the top of the well pipe 2, the plugging device comprises a cover plate 3, the shape of the cover plate 3 is a flat cuboid, and the surface of the cover plate 3 is square. The cover plate 3 is provided with a water outlet 31, the water outlet 31 is a round hole, a water outlet pipe 4 is welded at the water outlet 31, the water outlet pipe 4 is perpendicular to the cover plate 3, and one end of the water outlet pipe 4 far away from the cover plate 3 is provided with an end cover 5.

Four limiting plates are arranged on one side of the cover plate 3 and distributed around the cover plate 3, and one side of each limiting plate is abutted to the outer wall of the well pipe 2; the cover plate 3 is lapped on the top of the well pipe 2 under the action of gravity, and the limiting plate is clamped on the outer side of the well pipe 2, so that the movement of the cover plate 3 in the horizontal direction can be limited, and the cover plate 3 is fixed. Referring to fig. 3 and 4, in this embodiment, the limiting plate is an angle steel 6, four angle steel 6 are connected end to end and welded around the cover plate 3 respectively to form a rectangular frame, the size of the frame is set according to the size of the well pipe 2, a part of the angle steel 6 contacting with the cover plate 3 is parallel to the cover plate 3, another part of the angle steel 6 is perpendicular to the cover plate 3, and a part of the angle steel 6 perpendicular to the cover plate 3 is abutted against the outer wall of the well pipe 2.

During installation, only the cover plate 3 needs to be buckled downwards at the top of the well pipe 2, and the inner side of the angle steel 6 can be abutted with the outer wall of the well pipe 2 due to the matching of the size of the frame and the well pipe 2, so that the cover plate 3 is limited to move along the horizontal direction, the installation process is simple and convenient, one person can operate, the installation efficiency can be greatly improved, and the construction period is shortened. In this embodiment, the structure of fixedly connecting the angle steel 6 and the cover plate 3 is applicable to the square dewatering well 19 in addition to the round dewatering well 19, so that the applicability is stronger.

Referring to fig. 3, the end cover 5 is in threaded connection with the water outlet pipe 4, an internal thread is arranged on the end cover 5, an external thread matched with the end cover 5 is arranged at one end of the water outlet pipe 4 close to the end cover 5, the threaded connection facilitates the installation of the end cover 5, and meanwhile, the end cover 5 can be prevented from falling off, so that water in the well pipe 2 flows out. The outer wall of the end cover 5 is provided with anti-slip lines 51, so that the end cover 5 is not easy to slide during rotation, and the operation is convenient. One side of the end cover 5, which is close to the water outlet pipe 4, is adhered with a sealing block made of rubber, and the sealing block is elastic, so that the gap between the end cover 5 and the water outlet pipe 4 can be reduced after the sealing block is abutted against the water outlet pipe 4, and the tightness is improved.

The implementation principle of the embodiment 1 is as follows: after the well pipe 2 is installed, a water pump can be placed in the well pipe 2, one end of the water pump is communicated with a plastic pipe, and the plastic pipe extends to the top of the well pipe 2; then, the cover plate 3 is covered on the top of the well pipe 2, so that the inner sides of the angle steels 6 around are all abutted with the outer wall of the well pipe 2, and meanwhile, the plastic pipe penetrates out of the water outlet pipe 4; under the action of the water pump, water in the well pipe 2 flows from the plastic pipe to the outside, and meanwhile, concrete is filled into the well pipe 2 through the water outlet pipe 4; when the concrete is filled to the top of the well pipe 2 quickly, fusing the plastic pipe, stopping pumping water, and continuing to fill the concrete until the well pipe 2 is filled; after the well pipe 2 is filled, the end cover 5 is screwed into the top of the water outlet pipe 4, the water outlet pipe 4 is plugged, and plugging of the dewatering well 19 can be completed. And binding raft steel bars at the top of the cover plate 3, and pouring concrete at the raft. The plugging device has simple structure and convenient installation, and can greatly reduce the construction period; meanwhile, the underground water can be kept at a relatively low water level by filling concrete into the well pipe 2 while water is pumped, so that the possibility of seepage of the underground water is reduced.

Example 2

Referring to fig. 4 and 5, the difference between the present embodiment and embodiment 1 is that the limiting plate of the present embodiment is a baffle plate 7, the baffle plate 7 has a rectangular parallelepiped shape, the baffle plate 7 is perpendicular to the cover plate 3, and the baffle plate 7 is slidably connected to the cover plate 3. The baffle plates 7 are four in total and are arranged around the cover plate 3, the four baffle plates 7 are divided into two groups, every two parallel baffle plates 7 are one group, the first group of baffle plates 7 slide along the surface of the cover plate 3, and the second group of baffle plates 7 slide along the surface of the first group of baffle plates 7, so that interference of the two groups of baffle plates 7 can be avoided. Each baffle 7 is connected with a double-end screw rod 8, the double-end screw rods 8 are perpendicular to the baffles 7, the double-end screw rods 8 are located at the end parts of the baffles 7, the screw threads at the two ends of the double-end screw rods 8 are opposite in direction, and the two ends of the double-end screw rods 8 are in threaded connection with the baffles 7 at the left side and the right side respectively. The end part of the double-end screw rod 8 is fixedly connected with a butterfly handle 9, so that the double-end screw rod 8 can be conveniently rotated.

When the plugging device is installed, the cover plate 3 is firstly placed at the top of the well pipe 2, then the four baffles 7 are all positioned outside the well pipe 2, then the double-headed screw rod 8 is rotated through the butterfly handle 9, the baffles 7 at two sides slide towards the directions close to each other, the baffles 7 are abutted against the outer wall of the well pipe 2, the movement of the cover plate 3 is limited, and the installation process is completed.

In order to enhance the abutting effect between the baffle 7 and the outer wall of the well pipe 2, referring to fig. 5, a rubber pad 71 is adhered to one side of the baffle 7 close to the well pipe 2, and since the rubber pad 71 has elasticity, the contact area can be increased, thereby enhancing the abutting effect, so that the cover plate 3 is fixed more firmly.

The implementation principle of the embodiment 2 is as follows: the cover plate 3 is firstly arranged on the top of the well pipe 2, so that the four baffles 7 are all positioned on the outer side of the well pipe 2, then the double-head screw rod 8 is rotated, so that the two parallel baffles 7 move towards the direction of approaching each other, the well pipe 2 is clamped, and the cover plate 3 is fixed; after the well pipe 2 is filled with concrete, the end cover 5 is screwed tightly; the threaded connection of the double-headed screw 8 and the baffle 7 can enhance the fixing effect of the cover plate 3, thereby ensuring the plugging effect of the cover plate 3.

The foregoing is a preferred embodiment of the present application, and is not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a stopper for precipitation well shutoff, be equipped with well pipe (2) in precipitation well (19), the stopper is located the top of well pipe (2), its characterized in that: including locating apron (3) at well pipe (2) top, one side that apron (3) is close to well pipe (2) is equipped with four limiting plates that are used for restricting apron (3) and remove, four limiting plates are located around apron (3) respectively, limiting plates and the outer wall butt of well pipe (2), be equipped with delivery port (31) on apron (3), delivery port (31) department fixedly connected with outlet pipe (4), outlet pipe (4) set up with apron (3) perpendicularly, the one end that apron (3) was kept away from to outlet pipe (4) is equipped with end cover (5).

2. The plugging device for plugging a dewatering well according to claim 1, wherein: the limiting plate is an angle steel (6), the angle steel (6) is fixedly connected to the cover plate (3), a part of the angle steel (6) contacted with the cover plate (3) is parallel to the cover plate (3), and a part of the angle steel (6) perpendicular to the cover plate (3) is abutted to the outer wall of the well pipe (2).

3. The plugging device for plugging a dewatering well according to claim 1, wherein: the water outlet pipe is characterized in that an inner thread is arranged on the end cover (5), an outer thread matched with the end cover (5) is arranged on one side, away from the cover plate (3), of the water outlet pipe (4), and the end cover (5) is in threaded connection with the water outlet pipe (4).

4. The plugging device for plugging a dewatering well according to claim 1, wherein: one side of the end cover (5) close to the water outlet pipe (4) is provided with a sealing block, and the sealing block is abutted with the water outlet pipe (4).

5. The plugging device for plugging a dewatering well according to claim 1, wherein: the end cover (5) is provided with anti-skid patterns (51).

6. The plugging device for plugging a dewatering well according to claim 1, wherein: the limiting plate is a baffle (7), the baffle (7) is in a cuboid arrangement, the baffle (7) is perpendicular to the cover plate (3), a double-headed screw (8) is arranged between the baffle (7) and parallel to the baffle, the screw threads at two ends of the double-headed screw (8) are opposite in direction, and the double-headed screw (8) is in threaded connection with the baffle (7).

7. The plugging device for plugging a precipitation well according to claim 6, wherein: a rubber pad (71) is arranged on one side, close to the well pipe (2), of the baffle plate (7), and the rubber pad (71) is abutted to the outer wall of the well pipe (2).

8. The plugging device for plugging a precipitation well according to claim 6, wherein: the end part of the double-end screw rod (8) is provided with a butterfly handle (9).

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