KR101840639B1 - Ground water top protection with watertightness - Google Patents

Abstract

The present invention relates to a top protection hole for groundwater with a watertightness maintenance means and, more specifically, relates to the top protection hole for groundwater with a watertightness maintenance means, capable of preventing leak of water by elasticity of a spring when intake groundwater is guided to the outside. According to one embodiment of the present invention, the top protection hole for groundwater comprises: a second water intake pipe having a hollow cylindrical shape while having upper and lower opened parts, wherein a first water intake pipe having a pumping pipe with a submersible pump is installed in a bottom and a discharge pipe is formed on one side; a U-shape first guide pipe installed inside the second water intake pipe, wherein a water inlet pipe communicates with a drain pipe in an upper part; a first connection pipe installed in a lower part of the first guide pipe inside the second water intake pipe, wherein an upper side is connected to the water inlet pipe and the drain pipe, a lower side is connected to a pumping pipe, one side is connected to the discharge pipe, and a vertical partition is formed therein; and the watertightness maintenance means installed in the second water intake pipe of an opposite side of the discharge pipe to push the first connection pipe towards the discharge pipe by the elasticity of the spring so as to maintain watertightness.

Description

Background Art [0002] Groundwater top protection with watertightness [

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to an underground water upper protection hole having watertightness maintaining means, and more particularly, to a groundwater upper watertight protection hole having watertightness maintaining means capable of preventing water leakage by elasticity of a spring .

Generally, in order to supply drinking water for agricultural and industrial purposes and living water for farming and fishing villages, the groundwater is pumped into the ground, the pumping water pipe is inserted into the water pipe, and the groundwater is pumped by using an underwater pump.

In other words, a conventional general pumping system for groundwater development is constructed by excavating a ground to form a tunnel, then inserting a casing, which is a circular pipe, into the inner wall of the tunnel to closely contact the proper position of the tunnel, It is inserted into the space.

In such a pumping system, groundwater flowing between the rock masses is gathered in the reservoir through the anti-cancer pond. Groundwater collected in the reservoir is forced to be sucked by the operation of an underwater pump and supplied to the water pipe along the pumping pipe.

Because of the indiscreet development of such groundwater and the lack of management after that, various pollutants are mixed with groundwater in case of daily sewage or flood, and the quality of groundwater is deteriorating.

To solve this problem, an upper protection facility with a groundwater level higher than that of the ground is installed to block the inflow from the contaminated surface.

On the other hand, according to Article 25 (5) of the Enforcement Decree of the Underground Water Act and the Environmental Standards Ordinance, "Establishment Standards for Groundwater Contamination Facilities", there should be no leakage for 5 minutes at a pressure of 20 kg / cm ² (0.49 Mpa) It is important to maintain the watertightness in the underground water tank.

For example, as shown in FIG. 1, Japanese Patent Application No. 10-1106525 (entitled " upper protection device for an integrated type groundwater ball) The lower end of the second water intake pipe 300 is provided on the ground G and a first water intake pipe not shown in the lower end thereof is installed. In the first water intake pipe, a water intake pipe having an underwater pump is installed.

The second water intake pipe (300) has a hollow cylindrical shape with its upper and lower portions opened. An induction pipe connection port (320) for discharging water to the outside is formed on the lower side, A cover is provided to prevent contamination.

An induction pipe 400 is inserted into the second water intake pipe 300 from the upper portion of the second water intake pipe 300. A pull ring 440 is provided on the upper portion of the induction pipe 400, It is inserted into the second water intake pipe 300 by grasping it or by using a crane or the like.

The lower end of the induction pipe 400 has a water inlet 410 and the other end has a water drain port 470. The water inlet 410 is bent to be located at the center of the second water intake pipe 300 The inlet is directed downward, and the drain port 470 is bent to the side and connected to the induction pipe connector 320.

An impact preventing orifice 420 is provided on the inner side of the inlet 410 of the induction pipe 400 so that water flowing from the pumping water flows through the through hole 421 of the impact preventing orifice 420, So that the water flowing into the check valve 430 and flowing through the inlet 410 is prevented from flowing backward while rising through the inlet pipe 401.

The water flowing in the inflow pipe 401 turns into an inverted U shape in the upper part of the induction pipe 400 and flows into the discharge pipe 402. At this time, a straight induction orifice 450 is provided above the discharge pipe 402, The vortex generated while turning at the upper portion of the rotor 400 is removed.

The water with the vortex removed flows into the flow meter 460 provided at the inner lower portion of the discharge pipe 402 to measure the flow rate and the water passing through the flow meter 460 passes through the drain port 470 to the induction pipe connection port 320 And is discharged to the outside of the second water intake pipe (300).

At this time, the induction pipe connection port 320 is formed with a slope 322 on the upper side and a protrusion 323 on the lower side at the rear end of the tubular discharge port 321.

Therefore, the front end of the discharge port 321 is fitted from the inside of the second borehole 300 and is exposed to the outside, and the inclined surface 322 and the engagement protrusion 323 are positioned inside the second water intake pipe 300, .

The contact support part 330 for maintaining watertightness between the guide pipe connection part 320 and the discharge pipe 402 is installed at the opposite position of the guide pipe connection part 320 in the second water supply pipe 300, A rectangular box-shaped housing 331 is provided so as to protrude to the outside of the second intake pipe 300 and a rotary shaft 332 is supported and installed in the housing 331 in the lateral direction.

The rotating shaft 332 is provided with a rotating piece 333 which rotates in the up and down direction via the rotating shaft 332. The surface of the rotating piece 333 is bent slightly inward, ) Of the body is in surface contact so that it can be easily mounted.

A lower end of the guide pipe 400 is seated and supported by a protrusion 334 protruding from the bottom of the pivoting piece 333.

The upper portion of the rotating piece 333 is located inside the housing 331 to exclude interference with the induction pipe 400 when the induction pipe 400 is mounted and the lower portion of the rotating piece 333 is connected to the housing 331 The spring 335 is mounted between the lower rear surface of the rotating piece 333 and the inner side of the housing 331. [

When the induction pipe 400 is moved downward from the upper part of the second water intake pipe 300 by the constitution of the watertightness maintaining means as described above, the portion where the water drainage port 470 is formed passes through the inclined surface 322 And moves toward the rear side, that is, toward the close contact support portion 330.

At this time, the lower end of the rotating piece 333 of the close contact support portion 330 protrudes to the inside of the second water intake pipe 330 and the upper portion thereof is located inside the housing 331, The rear end of the pipe 400 is brought into surface contact with the center of the pivoting piece 333 without interference and the downward movement of the pivoting piece 333 causes the upper end of the pivoting piece 333 to rise, And comes into contact with the upper part.

That is, when the lower end of the induction pipe 400 is pressed while the lower surface of the pivoting piece 333 is in contact with the surface, the upper part of the pivoting piece 333 is pivoted to connect the upper end of the induction pipe 400 to the induction pipe connection port 320, .

Therefore, the tip end of the drain hole 470 of the induction pipe 400 can be held in contact with the inside of the discharge port 321 in such a manner that the upper portion of the turn piece 133 is pushed from behind.

However, in the conventional watertightness maintaining means, the upper part of the rotation piece 333 pushes the upper rear side of the induction pipe 400, that is, the rear end of the induction pipe 400 can not be balanced, The distal end of the induction pipe 400 and the induction pipe connection port 320 can not maintain the watertightness at a uniform pressure due to the pressure of the induction pipe 400, There is a possibility that water leaks to the lower side between the upper portion 320 and the lower portion.

2, the inlet pipe 401, the discharge pipe 402, and the inlet port 410 are cut to form a hole in the connection pipe 403, and then the inlet pipe (400) The processing part of the discharge pipe 402 and the inlet 410 and the processing part of the connection pipe 403 and the rear end part of the connection pipe 403 are assembled to each other through welding so that the manufacturing process is complicated, There is a problem in that the assembling can not be performed due to heat deformation due to high temperature welding and deviation between the assembled parts and it is difficult to weld the partition 404 in the connecting pipe 403, .

The check valve 430 is installed in the middle of the welded pipe 401, which is difficult to repair or replace when the check valve 430 fails.

Registration No. 10-1106525 (Publication date February 24, 2012)

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for preventing leakage of water by pushing a push plate at a rear end of a connection pipe, And an object of the present invention is to provide an underground water upper protection hole provided with a watertightness maintaining means which is free from concern.

Another object of the present invention is to provide a groundwater upper protection hole having a watertightness maintaining means capable of shortening a time, minimizing thermal deformation and manufacturing an inner partition by manufacturing a connection pipe in a casting manner, thereby improving work efficiency have.

Another object of the present invention is to provide an underground water upper protection hole having a check valve provided under the induction pipe and equipped with a watertightness maintaining means that can be easily repaired and replaced when a check valve fails.

To achieve the above object, according to one aspect of the present invention, there is provided an underground water upper protection hole provided with a watertightness maintaining means, comprising: a cylindrical shape having an open top and bottom, A second intake pipe in which a water intake pipe is installed at the lower end and a discharge pipe is formed at one side;

An ∩-shaped first induction pipe inserted into the second intake pipe and communicated with the inlet pipe and the drain pipe at the upper portion;

Wherein the upper part is connected to the inlet pipe and the drain pipe, the lower part is connected to the discharge pipe, the one end is connected to the discharge pipe, and the vertical partition is formed in the inside of the second inlet pipe. 1 connection piping; And

A watertightness maintaining means provided in a second water intake pipe on the side opposite to the discharge pipe and pushing the first connection pipe toward the discharge pipe by elasticity of a spring to maintain watertightness;

.

 The upper portion of the groundwater protection hole provided with the watertightness maintaining means according to an embodiment of the present invention,

A second water intake pipe having a cylindrical shape with an upper and a lower part opened and an inner space empty, a first water intake pipe provided with a water intake pipe having an underwater pump, and a discharge pipe formed at one side;

A second induction pipe inserted into the second intake pipe and made of a single pipe;

A second connection pipe provided below the second induction pipe in the second intake pipe, the second connection pipe being connected to the second induction pipe at the upper side, to the pumping pipe at the lower side, and to the discharge pipe at one end; And

A watertightness maintaining means provided in a second water intake pipe on the side opposite to the discharge pipe and pushing the second connection pipe toward the discharge pipe by elasticity of a spring to maintain watertightness;

.

The watertightness maintaining means includes a housing having a receiving portion having different inner diameters and being opened to communicate with both sides,

A push member that is inserted through a receiving portion of a large inner diameter formed in the housing and protrudes to the outside through a receiving portion having a small inner diameter and whose front end pushes the first connection pipe or the second connection pipe toward the discharge pipe,

A spring received inside through an open side of the push member,

And a support plate which is fixed to the opening portion side having the accommodating portion of the large inner diameter of the housing so as not to move so as to support the spring.

In addition, the tip end portion of the push member is flat dome-shaped, and the spring has both end faces flat.

In addition, a semicircular latching protrusion is horizontally protruded along the rim of the housing on the lower side of the housing with the distal end portion of the push member protruded. The protruding rib is thicker from the left and right ends to the lower side, do.

The first connection pipe and the second connection pipe are manufactured by casting.

And a check valve is provided below the first connection pipe and the second connection pipe to prevent reverse flow of groundwater.

According to the solution of the above-mentioned problem, the dome-shaped push member having the flat tip end pushes the pushing plate at the rear end of the connection pipe to maintain the watertightness at the uniform pressure between the tip of the connection pipe and the discharge pipe.

In addition, the connecting piping can be manufactured in a casting method in the conventional processing and welding method, thereby shortening the time, minimizing the thermal deformation, and omitting the inner partition welding, thereby improving the working efficiency.

And check valve is provided under the induction pipe, so it is easy to repair and replace when check valve is broken.

1 is a view showing an example of a conventional watertightness maintaining means.
Fig. 2 is a view showing a method of assembling and assembling the induction pipe shown in Fig. 1. Fig.
3 is a view showing an example of an upper protection hole provided with a watertight holding means according to the present invention.
4 is a view showing the connection pipe shown in Fig.
5 is an exploded view of the watertightness maintaining means shown in Fig.
6 is an exploded view of the watertightness maintaining means and the pushing plate shown in Fig.
7 is a view showing another example of the upper protection hole provided with the watertightness maintaining means according to the present invention.
8 is a view showing the connection pipe shown in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

It is to be noted that the same components of the drawings are denoted by the same reference numerals and symbols as possible even if they are shown in different drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Also, when a part is referred to as "including " an element, it does not exclude other elements unless specifically stated otherwise.

3 is a view showing an example of an upper protection hole provided with a watertight holding means according to the present invention.

3, the upper protection hole 500 having the watertightness maintaining means according to the present invention includes a second water intake pipe 600, an induction pipe 700, a connection pipe 800, and watertightness maintenance means 900 ).

The second water intake pipe 600 has a cylindrical shape with an open top and a bottom, and an upper portion is installed above the ground G with the lower portion buried in the ground.

A first water intake pipe (not shown) is provided at the lower end of the second water intake pipe 600, and a water intake pipe having an underwater pump is provided in the first water intake pipe.

The second water intake pipe 600 is provided with a discharge pipe 620 having a discharge port 622 for discharging water to the outside and a cover for preventing contamination of groundwater Loses.

The inlet pipe 701 and the discharge pipe 702 are inserted into the connecting pipe 800 from the upper side to the inside of the second water intake pipe 600 and the connecting holes 802 and 803 As shown in Fig.

The induction pipe 700 is a double pipe type in which the vertical inlet pipe 701 and the discharge pipe 702 are separated from each other and connected to each other.

4, the connecting pipe 800 is provided at a lower portion of the induction pipe 700 inside the second water intake pipe 600. The connecting pipe 800 is opened at the both sides of the induction pipe 700, ) And are manufactured by a casting method.

The connection pipe 800 is formed with two connection ports 802 and 803 on the upper side and one connection port 801 on the lower side respectively and the upper connection ports 802 and 803 are connected to the inlet pipe 803 of the induction pipe 700, (701) and the discharge pipe (702), and the lower connection port (801) is connected to the pumping pipe.

In the present invention, a check valve 730 is provided below the connection port 801 of the connection pipe 800 to prevent backflow.

This makes it easy to repair or replace the check valve 730 when the check valve 730 fails, and it can buffer the water hammer generated when the underwater pump is driven.

The openings 804 on one side of the open side of the connection pipe 800 are connected to and connected to the discharge pipe 620 of the second water intake pipe 600. At this time, The jaw 624 is protruded to prevent the detachment of the connection pipe 800 and the opening 806 on the other side is closed and sealed by the sealing cap 810.

The water that has passed through the amniotic water pipe by the underwater motor passes through the connection port 801 and the connection port 802 of the connection pipe 800 and the inflow pipe 701 and the discharge pipe 702 of the guide pipe 700, The discharge port 622 of the discharge pipe 620, and the discharge port 622 of the discharge pipe 620. The discharge port 622 of the discharging pipe 620 is connected to the discharge port 622 of the discharge pipe 620,

The second water intake pipe 600 on the opposite side of the discharge pipe 620 is provided with watertightness maintaining means 900 for maintaining the watertightness by pushing the connection pipe 800 toward the discharge pipe 620.

The watertight holding means 900 includes a housing 906, a push member 910, a spring 904 and a support plate 902 as shown in Fig.

The pushing member 910 is inserted through a large-diameter accommodating portion on the left side in the figure so that the tip end of the pushing member 910 is inserted into a small inner diameter And protrudes to the right side of the housing 906.

At this time, the rear end portion of the push member 910 has an outer diameter larger than the body of the push member 910 so as not to protrude from the receiving portion of the small inner diameter formed in the housing 906.

A semicircular latching protrusion 907 protrudes horizontally from the left and right ends of the housing 906 with a predetermined thickness along the rim of the housing 906, And the thickness is constantly formed from a predetermined point.

On the other hand, the push member 10 has a flat dome shape in which a spring 904 is housed inside the rear end portion and a front end portion, which will be described later, is in contact with the pushing plate 920.

The spring 904 is preferably flattened on both sides in order to apply a uniform pressure to the connecting pipe 800. It is advantageous for water tightness to have a load of 150 to 230N.

That is, when the load is less than 150 N, the pressure to push the connecting pipe 800 is weak and the water tightness drops. If the load is more than 230 N, the push member 800 does not retract well when the induction pipe 700 is installed.

The support plate 902 is fixed to the side of the rear end opening of the housing 906 (the opening portion having the large inner diameter receiving portion) so as to support the spring 904.

The end of the spring 904 is supported by the support plate 902 while the push member 910 is accommodated in the housing 906 and the spring 904 is accommodated in the push member 910 The distal end portion of the push member 910 is protruded outside the housing 906 (right side in the drawing) in which the engaging protrusion 907 is formed by passing through the receptacle of the small inside diameter by the elasticity of the spring 904.

6, the pushing plate 920 which pushes the connecting pipe to the right side in contact with the tip end portion of the push member 910 is fixed to the other side of the connecting pipe 800 blocked by the sealing cap 810. [

At this time, the jumping plate 920 is formed with an inclined surface 922 that becomes thinner from the middle to the bottom, and the jumping plate 920 is caught by the hooking jaw 907 of the housing 906 when the guide tube 700 is installed It is easily inserted from the upper portion of the jaw 907, and is not released in the inserted state.

In FIG. 3, reference numeral 632 denotes a power line formed in the second intake pipe 600 for drawing the electric wire, 750 denotes a pressure gauge for measuring the pressure of the induction pipe 700, 740 denotes an induction pipe for facilitating the collection of groundwater, A water supply valve installed in the pipe 700, and a flow meter 760 for measuring the flow rate.

In the structure of the upper protection hole 500 provided with the watertightness maintaining means 900, when the induction pipe 700 connected to the connection pipe 800 is moved downward from the upper part inside the second water intake pipe 600 The push member 910 is retracted and the spring 904 is compressed while the inclined surface 922 of the pushing plate 920 contacts the flat dome-shaped tip of the push member 910, And is pushed toward the water pipe 620.

When the tip end of the push member 910 is positioned at the center of the pushing plate 920 in this way, the pushing plate 920 is not released by the semicircular latching jaw 907 of the housing 906, The opening portion 804 is not released to the engagement protrusion 624 formed in the protrusion 620.

At this time, the spring 904 of the both end face grinding housings accommodated in the push member 910 elastically resiliently contacts the center of the pushing plate 920 with the flat dome-shaped tip end portion of the pushing member 910, ) To the water outlet pipe (620).

Therefore, the elasticity of the spring 904 located on the opposite side allows the push member 910 to tightly contact the connecting pipe 800 toward the discharge pipe 620, thereby maintaining the watertightness.

The connecting pipe 800 and the discharging pipe 620 are closely contacted by a uniform pressure by pushing the connecting pipe 800 with a uniform pressure so that water does not leak between the connecting pipe 800 and the discharging pipe 620.

FIG. 7 is a view showing another example of the upper protection hole provided with the watertightness maintaining means according to the present invention, and FIG. 8 is a view showing the connection pipe shown in FIG.

3 is different from the embodiment of FIG. 3 in that the induction pipe 700 is a single pipe rather than a double pipe type of the inlet pipe and the drain pipe, and the connecting pipe 807 of the connecting pipe 800 is located on the upper side .

It is needless to say that the connection pipe 800 shown in FIG. 8 is also manufactured as a casting.

In FIG. 7, reference numeral 770 denotes a pulling collar provided at the upper portion of the induction pipe 700 for an operator to grip the work pipe by hand or insert it into the second water intake pipe 600 by a crane or the like.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

500: upper protection hole 600: second intake pipe
700: induction tube 800: connection tube
900: watertightness maintaining means 902:
904: spring 906: housing
910: push member 920:

Claims (7)

A second water intake pipe having a cylindrical shape with an upper and a lower part opened and an inner space empty, a first water intake pipe provided with a water intake pipe having an underwater pump, and a discharge pipe formed at one side;
An ∩-shaped first induction pipe inserted into the second intake pipe and communicating with the inlet pipe and the drain pipe at an upper portion;
Wherein the upper part is connected to the inlet pipe and the drain pipe, the lower part is connected to the discharge pipe, the one end is connected to the discharge pipe, and the vertical partition is formed in the inside of the second inlet pipe. 1 connection piping; And
A watertightness maintaining means provided in a second water intake pipe on the side opposite to the discharge pipe and pushing the first connection pipe toward the discharge pipe by elasticity of a spring to maintain watertightness; / RTI >
Wherein the watertightness maintaining means comprises: a housing having a housing portion having different inner diameters and opened to communicate with both sides; a housing having a large inner diameter formed in the housing and projecting outwardly through a receiving portion having a small inner diameter, A support plate for supporting the spring fixedly movably on the side of the opening portion having the accommodating portion of the large inner diameter of the housing, And a pushing plate contacting with a distal end portion of the push member,
A semicircular latching protrusion protrudes horizontally along the rim of the housing. The latching protrusion is thicker from the left and right ends of the housing to the lower side thereof, and the thickness thereof is maintained constant from a predetermined point. And an inclined surface that is thinned from the middle to the bottom is formed. A second water intake pipe having a cylindrical shape with an upper and a lower part opened and an inner space empty, a first water intake pipe provided with a water intake pipe having an underwater pump, and a discharge pipe formed at one side;
A second induction pipe inserted into the second intake pipe and made of a single pipe;
A second connection pipe provided below the second induction pipe in the second intake pipe, the second connection pipe being connected to the second induction pipe at the upper side, to the pumping pipe at the lower side, and to the discharge pipe at one end; And
A watertightness maintaining means provided in a second water intake pipe on the side opposite to the discharge pipe and pushing the second connection pipe toward the discharge pipe by elasticity of a spring to maintain watertightness; / RTI >
The watertightness maintaining means includes a housing having a housing portion having different inner diameters and opened to communicate with both sides of the housing, a housing having a large inner diameter formed in the housing and projecting outwardly through a housing portion having a small inner diameter, A support plate for supporting the spring fixedly movably on the side of the opening portion having the accommodating portion of the large inner diameter of the housing, And a pushing plate contacting with a distal end portion of the push member,
A semicircular latching protrusion protrudes horizontally along the rim of the housing. The latching protrusion is thicker from the left and right ends of the housing to the lower side thereof, and the thickness thereof is maintained constant from a predetermined point. And an inclined surface that is thinned from the middle to the bottom is formed. delete The method according to claim 1,
Wherein a tip end portion of the push member is a flat dome shape, and both ends of the spring are flat. delete The method according to claim 1,
Wherein the first connection pipe is manufactured by casting. The method according to claim 1,
Wherein a check valve is provided at a lower portion of the first connection pipe to prevent reverse flow of groundwater.

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