CN114182746A

CN114182746A - Self-plugging device for dewatering well and installation method thereof

Info

Publication number: CN114182746A
Application number: CN202111581974.XA
Authority: CN
Inventors: 张治继; 刘运; 杨金波; 路强; 王连铎; 孙刚
Original assignee: Beijing Construction Engineering Group Co Ltd
Current assignee: Beijing Construction Engineering Group Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-03-15
Anticipated expiration: 2041-12-22
Also published as: CN114182746B

Abstract

The invention discloses a self-plugging device for a dewatering well and an installation method thereof. And the middle part of the plug is provided with a pipe passing hole. The blocking piece is movably arranged on the blocking plate and has a first state for blocking the through hole and a second state for opening the through hole. When the plugging sheet is in the second state, the elastic device is in a stretching state, and when the plugging sheet is in the first state, the elastic device is in an elastic resetting state. The utility model provides a precipitation well is from when plugging device uses, the whole shutoff of interior pipe orifice of well body is completely automatically formed first stagnant water measure to shutoff board and shutoff piece, again to precipitation pipe inside deposit water extraction completion back, pours concrete or other shutoff measures into to precipitation pipe inside, can effectively reduce because the shutoff construction degree of difficulty that groundwater pressure leads to too big, guarantee shutoff quality.

Description

Self-plugging device for dewatering well and installation method thereof

Technical Field

The invention relates to the technical field of dewatering wells, in particular to a dewatering well self-plugging device and an installation method thereof.

Background

Need carry out waterproof shutoff during current precipitation well construction, adopt the precipitation pipe during the shutoff to take away the inside water of precipitation well back and carry out the shutoff fast, but the shutoff in-process can continue to have groundwater to gush out, because groundwater pressure is too big leads to when carrying out the precipitation well shutoff that the easy groundwater of plugging material erodees leads to the leakproofness not high, exists the infiltration hidden danger.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention provides a dewatering well self-plugging device and an installation method thereof, which can automatically plug and ensure the plugging quality.

The first purpose of the invention is to provide a self-plugging device of a dewatering well, which comprises:

the middle part of the plugging plate is provided with a pipe passing hole;

the plugging sheet is movably arranged on the plugging plate and has a first state of plugging the through hole and a second state of opening the through hole;

and when the plugging piece is in the second state, the elastic device is in a stretching state, and when the plugging piece is in the first state, the elastic device is in an elastic resetting state.

Optionally, the elastic device includes two springs respectively disposed at two sides of the tube hole, the two springs are disposed in parallel, two fixed ends of the springs are fixedly connected with the blocking plate, and a telescopic end is connected with the blocking plate.

Optionally, a shifting shaft is arranged on the plugging sheet, one end of the shifting shaft is connected with one side face, far away from the plugging plate, of the plugging sheet, and the other end of the shifting shaft extends towards one side, far away from the plugging plate.

Optionally, the pipe plugging device further comprises a sealing ring, the sealing ring is arranged on the plugging plate or the plugging sheet, and when the plugging sheet is in the first state, the pipe passing hole is located in the sealing ring.

Optionally, the sealing ring is disposed on the blocking plate, and the sealing ring extends circumferentially around the pipe hole.

Optionally, the cross section of the sealing ring is a trapezoidal surface, the narrow end of the sealing ring is close to the pipe through hole, and the wide end of the sealing ring is far away from the pipe through hole.

Optionally, the device further comprises a downcomer, when the downcomer penetrates through the downcomer hole, the plugging sheet is in the second state, and when the downcomer is separated from the downcomer hole, the plugging sheet is in the first state.

Optionally, a guide sliding groove is formed in the blocking plate, the blocking piece is slidably connected to the guide sliding groove, and the extending direction of the guide sliding groove is parallel to the extending direction of the spring.

Optionally, the pipe plugging device comprises two guide sliding chutes, the two guide sliding chutes are respectively arranged at two sides of the pipe passing hole, and the guide sliding chutes extend to the edge of the plugging plate from two sides of the pipe passing hole;

the blocking piece is close to be provided with two sliders on one side of blocking board, two the slider respectively with insert two in the direction spout and can slide in the direction spout.

The second purpose of this application provides an installation method of above-mentioned precipitation well is from plugging device, includes the step:

s1, hermetically welding the plugging plate with the inner wall of the dewatering well, wherein the distance between the plugging plate and the bottom pipe orifice of the dewatering well is 0.5-1.5 m;

and S2, adjusting the plugging plate to a second state, enabling the precipitation pipe to penetrate through the pipe through hole from the bottom pipe orifice of the precipitation well, and extending to the outside of the top pipe orifice of the precipitation well to be communicated with the water pump.

By adopting the technical scheme, the invention has the following beneficial effects:

the utility model provides a precipitation well is from plugging device when using, plugging plate shutoff precipitation below in the pit and periphery and precipitation well inner wall sealing connection, when the shutoff piece is in first state, the whole cross section of the complete shutoff precipitation well of plugging plate and shutoff piece.

When the dewatering well self-plugging device is installed, the plugging piece is in a first state, the dewatering pipe penetrates into the pipe hole, the dewatering pipe is pulled out after water in the well pipe body is extracted by the dewatering pipe after the dewatering pipe is lowered to the ground, and the plugging piece automatically changes from a second state to a first state to plug the pipe hole under the action of the tensile force of the elastic device.

So the whole shutoff of interior pipe orifice of well body is completely automatic with shutoff of shutoff board and shutoff piece, forms first stagnant water measure, accomplishes the back to the inside extraction of depositing water of downcomer again, pours concrete or other shutoff measures into to the downcomer inside, can effectively reduce because the too big shutoff construction degree of difficulty that leads to of groundwater pressure, guarantee shutoff quality.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a side sectional view of the self-plugging device for dewatering well provided by the invention.

Fig. 2 is a top view of the self-plugging device for dewatering well provided by the invention.

Fig. 3 is a side sectional view of the plugging plate and the plugging sheet of the self-plugging device for dewatering wells provided by the invention.

Fig. 4 is a top view of a plugging plate of the dewatering well self-plugging device provided by the invention.

In the figure, a dewatering well 1, a plugging plate 2, a pipe passing hole 21, a guide chute 22, a plugging sheet 3, a dewatering pipe 4, a spring 5, a sealing ring 6, a shifting shaft 7 and a sliding block 8.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1 to 4, the present application provides a self-plugging device for dewatering wells, which comprises a plugging plate 2, a plugging sheet 3 and an elastic device. The middle part of the plugging plate 2 is provided with a through hole 21. The blocking piece 3 is movably arranged on the blocking plate 2, and the blocking piece 3 has a first state for blocking the through hole 21 and a second state for opening the through hole 21. When the plugging sheet 3 is in the second state, the elastic device is in a stretching state, and when the plugging sheet 3 is in the first state, the elastic device is in an elastic resetting state. The application is from plugging device when using, 1 below of 2 shutoff precipitation wells of shutoff board and periphery and 1 inner wall sealing connection of precipitation well, when shutoff piece 3 was in first state, the whole cross section of the complete shutoff precipitation well 1 of shutoff board 2 and shutoff piece 3.

When the dewatering well self-plugging device is installed, the plugging sheet 3 is in a first state, the dewatering pipe 4 penetrates into the pipe hole 21, the dewatering pipe 4 is adopted to extract water in the well pipe body after the dewatering pipe 4 is lowered to the ground, the dewatering pipe 4 is pulled out, and the plugging sheet 3 automatically changes from a second state to the first state to plug the pipe hole 21 under the action of the tensile force of the elastic device.

So the whole shutoff of interior pipe orifice of well body is completely automatically formed to shutoff board 2 and shutoff piece 3 first stagnant water measure, accomplishes the back to 4 inside deposit water extractions of downcomer, pours concrete or other shutoff measures into 4 insides of downcomer, can effectively reduce because the too big shutoff construction degree of difficulty that leads to of groundwater pressure, guarantee shutoff quality.

In a possible embodiment, the elastic device includes two springs 5 respectively disposed at two sides of the through-hole 21, the two springs 5 are disposed in parallel, both fixed ends of the two springs 5 are fixedly connected to the plugging plate 2, and the telescopic end is connected to the plugging plate 2. Set up two springs 5 and guarantee that flexible both sides pulling force is balanced and the pulling is stable to parallel arrangement is in passing tube hole 21 both sides, dodges and passes tube hole 21, does not influence down pipe 4 and penetrates tube hole 21.

In a possible embodiment, a shifting shaft 7 is arranged on the plugging sheet 3, one end of the shifting shaft 7 is connected with one side surface of the plugging sheet 3 far away from the plugging plate 2, and the other end extends to one side far away from the plugging plate 2. The shifting shaft 7 is convenient to hold or shift the plugging piece 3 to a first state after being sleeved with a tool, and the downcomer pipe 4 is convenient to insert into the pipe hole 21.

In a possible embodiment, the dewatering well self-plugging device further comprises a sealing ring 6, wherein the sealing ring 6 is arranged on the plugging plate 2 or the plugging sheet 3, and when the plugging sheet 3 is in the first state, the through hole 21 is positioned in the sealing ring 6. The sealing ring 6 can seal the gap between the plugging plate 2 and the plugging sheet 3, so as to further ensure the sealing effect.

In a possible embodiment, the sealing ring 6 is arranged on the closure plate 2, the sealing ring 6 extending circumferentially around the pipe aperture 21. The sealing ring 6 is arranged on the plugging plate 2 more stably, the sealing ring 6 is ensured to completely encircle the pipe hole 21 in real time, and the sealing effect is better.

In a possible embodiment, the cross section of the sealing ring 6 is a trapezoidal surface, the narrow end of the sealing ring 6 is arranged near the through-hole 21, and the wide end of the sealing ring 6 is arranged far from the through-hole 21. Because of the material of sealing washer 6 and downcomer 4 makes frictional force between the two big, so set up and form the direction effect, the downcomer 4 of being convenient for passes sealing washer 6 and crosses tube hole 21.

In a possible embodiment, the blocking plate 2 includes two guiding runners 22, the two guiding runners 22 are respectively disposed at two sides of the through-hole 21, and the guiding runners 22 extend from two sides of the through-hole 21 to the edge of the blocking plate 2. Set up two guide chute 22 and guarantee that shutoff board 2 slides stably, guide chute 22 begins in 2 borders of shutoff board, is convenient for be connected shutoff piece 3 with guide chute 22 by the border, and guide chute 22 other end is ended in passing a tub hole 21 both sides, can fix a position the sliding position of shutoff piece 3, makes shutoff piece 3 move to passing the complete shutoff of tube hole 21 top under spring 5's resilience force pulling at most and cross tube hole 21.

In a possible embodiment, two sliding blocks 8 are provided on one side of the plugging sheet 3 close to the plugging plate 2, and the two sliding blocks 8 are respectively inserted into the two guide chutes 22 and can slide in the guide chutes 22. The sliding block 8 can play a role in sliding and connecting the plugging sheet 3 and the plugging plate 2. Simple structure and good guiding effect.

Wherein, the measuring sections of the guide chute 22 and the slide block 8 are both T-shaped, which is convenient for connection, limitation and sliding.

In a possible embodiment, the self-plugging device for dewatering wells further comprises a dewatering pipe 4, the plugging sheet 3 is in the second state when the dewatering pipe 4 passes through the through-pipe hole 21, and the plugging sheet 3 is in the first state when the dewatering pipe 4 is separated from the through-pipe hole 21.

Example two

Referring to fig. 1 to 4, the present application provides an installation method of a dewatering well self-plugging device according to an embodiment, including the steps of:

s1, hermetically welding the plugging plate 2 and the inner wall of the dewatering well 1, wherein the distance between the plugging plate 2 and the pipe orifice at the bottom of the dewatering well 1 is 0.5-1.5 m;

s2, adjusting the plugging plate 2 to a second state, enabling the precipitation pipe 4 to penetrate through the pipe through hole 21 from the bottom pipe orifice of the precipitation well 1, and extending to the outside of the top pipe orifice of the precipitation well 1 to be communicated with a water pump.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a precipitation well self-plugging device which characterized in that includes:

the middle part of the plugging plate is provided with a pipe passing hole;

2. The self-plugging device of claim 1, wherein the elastic device comprises two springs respectively disposed at two sides of the through-hole, the two springs are disposed in parallel, both fixed ends of the two springs are fixedly connected to the plugging plate, and the flexible end is connected to the plugging plate.

3. The self-plugging device for dewatering wells according to claim 2, wherein the plugging sheet is provided with a shifting shaft, one end of the shifting shaft is connected with one side surface of the plugging sheet away from the plugging plate, and the other end of the shifting shaft extends towards one side away from the plugging plate.

4. The self-plugging device for dewatering wells according to claim 3, further comprising a sealing ring disposed on the plugging plate or the plugging sheet, wherein the through-hole is located in the sealing ring when the plugging sheet is in the first state.

5. The self-plugging device for dewatering wells according to claim 3, wherein the sealing ring is arranged on the plugging plate, and the sealing ring extends circumferentially around the through-hole.

6. The self-plugging device for dewatering wells according to claim 5, wherein the cross section of the sealing ring is a trapezoidal surface, the narrow end of the sealing ring is arranged close to the through-hole, and the wide end of the sealing ring is arranged far away from the through-hole.

7. The self-plugging device of claim 6, further comprising a downcomer pipe, wherein the plugging sheet is in the second state when the downcomer pipe passes through the through-pipe hole, and the plugging sheet is in the first state when the downcomer pipe is separated from the through-pipe hole.

8. The self-plugging device for dewatering wells according to claim 1, wherein the plugging plate is provided with a guiding sliding groove, the plugging sheet is slidably connected to the guiding sliding groove, and the extending direction of the guiding sliding groove is parallel to the extending direction of the spring.

9. The self-plugging device of claim 8, comprising two guiding chutes, wherein the two guiding chutes are respectively arranged at two sides of the pipe hole, and the guiding chutes extend from two sides of the pipe hole to the edge of the plugging plate;

10. The method for installing the dewatering well self-plugging device according to the claims 1 to 9, characterized by comprising the following steps: