KR101836935B1 - Concrete formwork for sealing a branch part of the sewage pipe - Google Patents

Abstract

The present invention relates to a method for preventing contamination of groundwater by securing a watertightness in a branch portion where a branch sewer pipe is installed in a main sewer pipe buried in the ground and in particular to prevent contamination of a sewer pipe due to a social phenomenon, The present invention relates to a concrete form for a concrete structure.
The present invention relates to a formwork main body comprising a front plate, side plates and bottom plates on both sides, a vertical U-shaped branch inserting portion at the center of the front plate, Wherein the opening and closing part is provided with an opening and closing circular plate provided with a circular coupling groove on the outer circumferential surface thereof and an arcuate lower surface provided on the lower side thereof and with coupling protrusions fitted into the circular coupling groove of the opening circular plate, A concrete mortar pouring work for closing the branching portion in a narrow space below the ground can be efficiently performed with a minimum amount of work time and the opening / The shim plate and the closing fitting plate may be integrally formed as a single piece, or they may be made of a closed type closed plate and an open type closed type plate So that it is possible to appropriately cope with the situation in the field so that the efficiency of the work can be secured.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete formwork for sealing a sewer pipe branch,

The present invention relates to a concrete form for sealing a sewage branching part, and more particularly, to a concrete formwork for a sewage branching part, more particularly, to prevent pollution of ground water by securing watertightness in a branch part where a branch sewer pipe is installed in a main sewage pipe buried in an underground, The present invention relates to a concrete form for sealing a branch portion of a sewer pipe for preventing settlement of a ground caused by a pupil phenomenon.

Generally, in order to improve the living environment and to preserve the eco-environment, it is used as sewage and industrial water in residential area, commercial area, It is installed in the basement.

The sewage facilities are basically buried in the basement as residential, commercial, or industrial complexes. The wastewater is supplied to the main sewage treatment plant (sewage disposal plant) Sewer pipes are buried.

The main sewer pipe buried in the basement is provided with a manhole that performs a house correction function at regular intervals, so that the sediments such as the gravel contained in the sewage discharged through the main sewer pipe are settled in the manhole, and the sewage is discharged to the sewage terminal treatment plant Smoothly flows.

As described above, in the state where the main sewer pipe is buried underground, the sewage discharged from each building flows into the main sewer pipe through the branch sewer pipe. In order to connect the branch sewer pipe to the main sewer pipe, Holes are drilled and a connecting pipe of a rubber material is inserted into a through hole of the main sewer pipe and a branch sewer pipe is installed.

The technique of installing the branch sewer pipe in the main sewer pipe through the rubber connecting port is known in the related art. In particular, the rubber connecting end has been developed in various structures to secure the water tightness of the connecting portion to be branched Especially, the branch sewer pipe is easily installed through the rubber connection.

The known prior art of the branch sewer connector is disclosed in Korean Patent No. 0726738 (hereinafter referred to as "sewage pipe branch structure", hereinafter referred to as "Prior Art 1") and Utility Model Registration No. 0195784 (entitled " (Hereinafter referred to as "Prior Art 2") and Korea Patent Registration No. 1297594 (hereinafter referred to as "Prior Art 3"), many prior arts have been developed and implemented in the field. 1, 2, and 3 will be described in more detail. In the prior art 1, a support plate and a fixing plate are provided through a through hole for installing a branch pipe on the outer circumferential surface of a sewer pipe buried in an underground, And a sewage pipe fixing hole having a threaded connection groove on the inner surface thereof. The connection pipe is connected to the sewage pipe fixing hole, and an indentation ring and an upper and a lower nut body And the connection socket is combined with the branch pipe.

The prior art 2 has a structure in which a through-hole for connecting a branch sewer pipe to an outer circumferential surface of a main sewer pipe is formed, and a connection socket having a joint portion at a lower portion and a diffraction portion at an upper portion is provided.

Prior art 3 has been developed by the present applicant and widely used in the field. The patent has been filed on December 16, 2011 and patented on Aug. 13, 2013. The structure is equipped with a ring mounting groove in the inside thereof, A diameter adjustable retaining ring provided with a stretch bending portion, and a water mill which is in close contact with the outer peripheral surface of the main pipe (main sewage pipe) by the protruding pushing portion.

In the prior arts 1, 2, and 3 as described above, a branch sewer pipe is installed in a main sewer pipe buried in an underground, and a through hole for connecting a branch sewer pipe to an outer circumferential surface of the main sewer pipe, Is fixed with a pair of "U" bolts and a branch pipe is installed using a connecting pipe and a connecting socket in the fixing hole, or a branch sewer pipe can be installed using a connecting socket having a coupling part and a diffraction part, The branch sewer could be installed in the main sewer in a state equipped.

In the prior art 3, a branch sewer pipe is installed in a main sewage pipe buried in an underground. In the prior art 3, one end of the main body of the connecting pipe is inserted into the inner circumferential surface of the through hole of the main sewer pipe. In the ring mounting groove formed in the inner circumferential surface of the fitting main body, The diameter of the connecting pipe body inserted into the through hole is in a state of being in close contact with the inner circumferential surface of the through hole, and when the branch pipe is inserted into the connecting pipe body in this state, So that the branch sewer can be installed with watertightness.

However, in the prior art 1, 2, and 3, a branch pipe (branch pipe) is installed in the main sewer pipe, the pipe pipe is installed in a watertight state at the time of installation, Since the connecting pipe is connected to the main sewage pipe in a watertight state, the rubber packing or the rubber material is buried in the ground under the condition of being in contact with the wastewater for a long period of time, resulting in poor watertightness.

In addition, since the main sewer pipe buried in the underground is installed on the road side, which is generally a state-owned road, a shock due to the load of the vehicle traveling on the road is applied to the connecting portion, and a gap is instantly generated, there was.

As a result of the above-mentioned problems, underground pupil phenomenon which is becoming a social problem in recent years is occurring, and a safety accident occurs due to the road depression due to the underground pupil phenomenon. Therefore, a number of pedestrians There is a growing problem of instability.

Patent Document 1 Korean Patent No. 0726738 "Sewage pipe branch structure" (Registered on July 4, 2007) Patent Document 2: Korean Utility Model Registration No. 0195784 "Branch Sewer Pipe Connection to Main Sewer" (Registered on Mar. 3, 2000) Patent Document 3 Korean Patent No. 1297594 entitled "Sewer pipe connector" (registered on December 13, 2013)

The present invention has been developed in order to overcome the problems of the prior art as described above and provides a concrete mold for sealing a sewer pipe branch portion by sealing a connection portion by injecting concrete mortar into a connection portion between a main sewer pipe and a branch sewer pipe It has its purpose.

It is another object of the present invention to provide a concrete mold for closing a sewer pipe branch portion having an opening / closing means for common use when installing a branch sewer pipe or closing a branch sewer pipe.

It is another object of the present invention to provide a sewer pipe which is buried underground for several decades and functions as the underground pipe, so that a leakage phenomenon occurs at the connecting portion of the branch pipe. As a result, The object of the present invention is to provide a concrete form for sealing a branch of a sewer pipe which can prevent the underground pupil phenomenon, which is a main cause of the subsidence of the ground, in advance.

In order to attain the above object, the present invention provides a bending machine comprising a form body made of a front plate, side plates and bottom plates on both sides, a vertical U-shaped lower branch inserting portion at the center of the front plate, And an opening / closing part that engages with the fitting part.

Wherein the opening and closing part is provided with an opening and closing circular plate provided with a circular coupling groove on the outer circumferential surface thereof and an arcuate lower surface provided on the lower side thereof and with coupling protrusions fitted into the circular coupling groove of the opening circular plate, And a drag plate.

The opening and closing part has a curved surface of the upper surface and a side surface of the outer peripheral surface and a circular curved surface of the lower surface of the outer surface so that the opening and closing part coincides with a "U" A closing plate for sealing which is provided with a groove portion into which the branch pipe fitting portion is fitted; An open type closure plate having an upper surface portion and a side surface portion formed in a straight line surface, a lower surface portion provided with an arcuate arc surface in the upward direction, and a straight groove portion in which the branch pipe fitting portion of the front plate is fitted, .

Side plates constituting both side surfaces of the formwork body are formed such that one end thereof, which is in contact with the main sewer pipe buried in the basement, has the same curved surface portion as the outer circumferential surface of the main sewer pipe.

Since the mold for opening and closing the sewer pipe branch part according to the present invention is provided with the opening and closing part on the front plate of the mold body, it is possible to efficiently insert the concrete mortar for sealing the branch part in a narrow space below the ground, And the workability is improved.

In addition, the mold for opening and closing the sewage pipe branch part according to the present invention may be constructed such that the opening / closing part provided on the front plate of the molding body is integrally formed by assembling the fitting disk for opening and closing and the closing fitting plate, and the closed type closing plate and the open type closing plate Therefore, it is possible to appropriately cope with the situation in the field, and the efficiency of the work can be secured.

In addition, the mold for opening / closing the branch of the sewage pipe branch according to the present invention has a curved surface portion that is the same as the curved surface of the outer circumference of the main sewage pipe, so that the portion of the side plate of the mold body contacting with the outer circumferential surface of the main sewage pipe forms a curved surface portion. The hermeticity of the branching portion can be further secured, and the reliability of the operation can be secured.

1 is an exploded perspective view of a mold according to the present invention,
FIG. 2 is a view illustrating an installation state of a branch sewer pipe using a die according to the present invention,
3 is a view illustrating a closed state of a boiler sewer pipe using a die according to the present invention,
4 is a cross-sectional view of a mold according to the present invention,
a) is a sectional view taken along the line AA in Fig. 2,
b) is a sectional view taken along line BB of Fig. 3 in a state in which concrete is inserted,
5 is an exploded perspective view showing another embodiment of the mold according to the present invention,
FIG. 6 is an exemplary view showing an installation state of a branch sewer pipe using another embodiment of a mold according to the present invention;
FIG. 7 is a view illustrating a closed state of a branch sewer pipe according to another embodiment of the present invention,
FIG. 8 is a cross-sectional view of a mold according to another embodiment of the present invention,
6 is a cross-sectional view taken along the line CC in Fig. 6,
b) is a cross-sectional view taken along line DD of Fig. 7 in a state in which the concrete is inserted.

DETAILED DESCRIPTION OF THE INVENTION The present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of a workpiece according to the present invention, FIG. 2 is an illustration of an installation state of a branch sewer pipe using a die according to the present invention, FIG. 3 is an exemplary view of a closed sewer pipe using a die according to the present invention FIG. 4 is a cross-sectional view of a state using the formwork according to the present invention, wherein a) is a cross-sectional view taken along the line AA of FIG. 2 in a state in which concrete is charged, and b) is a cross-sectional view taken along line BB of FIG.

As shown in the figure, the bottom plate 130, the side plates 120 on both sides and the U-shaped branch pipe fitting portion 111 in the vertical downward direction, And a cover plate 220 for covering the U-shaped branch pipe fitting portion 111. The mold body 100 includes a front plate 110 equipped with a U-shaped branch pipe fitting portion 111, And an opening / closing part (200).

The side plate 120 on both sides of the mold body 100 constitutes a curved surface portion 121 having a curved shape at one end and the opening and closing plate 210, And the closing fitting plate 220 is provided with a coupling protrusion 222 having an arcuate curved surface in an upward direction on the lower surface of the bottom plate 221 so that the opening of the opening and closing plate 210 U-shaped branch pipe fitting portion 111 fitted to the front plate 110 of the mold body 100 is fitted in the side surface portion 223 of the side wall portion 223 of the mold body 100, (Refer to FIG. 1)

Before describing the installation state of the branch sewer pipe using the formwork according to the present invention, the background and installation work of installing the branch sewer pipe in the main sewer pipe will be briefly described. When a new building is installed, In this case, the outer surface of the main sewer pipe buried in the underground is pierced through a hole corresponding to the outer diameter of the branch sewer pipe by using a perforator, so that the rubber material The installation work of the branch sewer pipe is completed by installing the connecting port (the main body and the stationary ring and the connecting member composed of a plurality of fixing bands) in the hole of the main sewer pipe and inserting the branch sewer pipe into the connecting port.

At this time, the branch sewer pipe is installed at a position above the center line of the horizontal line of the main sewer pipe so that the sewerage flowing through the main sewer pipe does not flow back to the branch sewage pipe side, and the smooth flow of the sewer water discharged through the branch sewer pipe A certain gradient (slope: slope) is set for the slope.

The branch sewer pipe 2 is connected to the main body 100 of the formwork 100. The branch sewer pipe 2 is connected to the main body 100 of the main body 100, Shaped branch pipe fitting portion 111 provided in the front plate 110 and the lower portion of the bottom plate 130 of the molding body 100 is stably filled with the soil or supported by the stone, Is in a state of being in close contact with the branch pipe fitting portion 111.

The curved surface portion 121 provided on the side plate 120 is brought into close contact with the outer peripheral surface of the main sewage pipe 1 when the outer surface of the front plate 110 of the molding body 100 is filled with soil or stone, The closing fitting plate 220 is coupled to the branch pipe fitting portion 111 in which the pipe 2 is inserted and the concrete mortar 5 is inserted into the molding body 100 to cure the pipe fitting portion. (See also Figures 2 and 4a)

On the other hand, when the existing branch sewer pipe 2 is to be closed, the branch sewer pipe 2 is separated from the connection mouth 3 and the closing stopper 4 is closed to close the hermetically sealed part. The concrete mortar is filled and cured by using the mold according to the present invention, so that the concrete can be sealed.

Specifically, in a state in which the stopper 4 is coupled to the connector 3, the opening and closing stopper plate 210 and the stopper plate 210 are formed in the branch pipe fitting portion 111 formed on the front plate 110 of the molding body 100, The opening and closing plate 210 is provided with a circular coupling groove 211 on the outer circumferential surface thereof and is inserted along the vertical plane of the branch pipe fitting portion 111, The lower portion, that is, the circular portion of the engine fitting portion 111 is sealed.

The closing fitting plate 220 is provided with the side groove portions 224 on the both side portions 223 so that the branch fitting portion 220 can be inserted into the branch fitting portion 111. [ The lower surface 221 of the closing fitting plate 220 has a circular arcuate shape in the upward direction and the engaging protrusions 222 provided on the lower surface 221 have already been formed The U-shaped branch pipe-fitted portion 111 formed on the front plate 110 becomes a sealed state by fitting into the circular coupling groove 211 of the inserted opening / closing plate 210 .

In order to closely contact the main sewage pipe 1 with the connection port 3 where the plug 4 is coupled to the inside of the formwork main body 100 in the above state, The curved surface portion 121 provided on the side plate 120 of the formwork body 100 is brought into close contact with the outer circumferential surface of the main sewage pipe 1 and the inside of the mold body 100 The concrete mortar 5 is cured and cured so that the connection port 3 of the main sewage pipe 1 is in a sealed state (refer to FIGS. 3 and 4B)

As described above, when the branch sewage pipe 2 is to be installed or closed in the main sewage pipe 1, the branch portion (i.e., the connecting portion), which is a portion having the risk of leakage of domestic sewage drained by using the mold according to the present invention, Is completely sealed with the concrete mortar (5), the domestic sewage is discharged to the sewage treatment plant without leakage.

FIG. 5 is an exploded perspective view showing another embodiment of a mold according to the present invention, FIG. 6 is an illustration of an installation state of a branch sewer pipe using another embodiment of a mold according to the present invention, and FIG. 8 is a cross-sectional view of a state in which a sewage pipe is installed or closed by using another embodiment of a mold according to the present invention, in which a) is a cross-sectional view 6 is a cross-sectional view taken along the line CC in Fig. 6, and b) is a cross-sectional view taken along the line DD in Fig.

As shown in the drawing, another embodiment of the opening and closing part 200 for sealing the U-shaped branch pipe fitting part 111 fitted to the front plate 110 of the molding body 100 according to the present invention will be described And the opening / closing part 200 is constituted by the closing closing plate 230 and the opening closing plate 240.

The closing plate 230 for sealing is composed of a top face portion 231, side face portions 232 and bottom face portions 233 on both sides and the top face portion 231 and the side face portions 232 on both sides face each other, The side surface portion 232 and the bottom surface portion 233 are provided with a groove portion 234.

The opening closing plate 240 includes a top surface portion 241 and side surfaces 242 and bottom surface portions 243 on both sides. The bottom surface portion 243 has a semicircular arc surface 244 upward. And the side portions 242 on both sides are provided with straight groove portions 245. (Refer to Fig. 5 also)

The branch sewer pipe 2 is installed by using the opening closing plate 240 and the closing sewer pipe 230 is closed by using the closing sewer pipe 2 by using the present invention as described above. The mold main body 100 is brought into close contact with the outer peripheral surface of the main sewage pipe 1 in order to install the branch sewage pipe 2 or to close the branch sewage pipe 2, The bottom plate 130 of the form body 100 and the outside of the front plate 110 are closely contacted with each other with a stone or soil.

The branched sewage pipe 2 installed in a state in which the formwork body 100 is in close contact with the outer circumferential surface of the main sewage pipe 1 is passed through the branch pipe fitting portion 111 equipped in the front plate 110 of the formwork body 100 And is connected to the branch pipe fitting portion 111 which is the upper portion of the branched sewage pipe 2 passing through the opening closing plate 240. The molding body 100 is connected to the branch pipe fitting portion 111 of the front plate 110 ) Portion is closed.

The inner side surface of the branch inserting portion 111 is fitted into the straight groove portion 245 provided in the side surface portion 242 of the opening closing plate 240 and the lower side portion 243 of the opening closing plate 240 is formed (See FIGS. 6 and 8A, refer to the reference drawings). As shown in FIGS. 6 and 8A, when the arc-

On the contrary, when it is desired to close the branch sewer pipe 2, the branch sewer pipe 2 is separated from the connection mouth 3 provided in the main sewer pipe 1 to connect the stopper 4, And is brought into close contact with the outer peripheral surface of the main sewage pipe 1 as shown in Fig.

In the above state, the closing plate 230 for sealing is joined to the branch pipe fitting portion 111 provided on the front plate 110 of the molding body 100. The inner peripheral surface of the branch pipe fitting portion 111 is closed The portion of the branch pipe fitting portion 111 fitted to the front plate 110 of the formwork body 100 is closed by being fitted into the groove portion 234 of the closing plate 230 for the mold.

When the concrete mortar 5 is poured through the upper part of the molding body 100 in the above state, the connection port 3 provided on the outer peripheral surface of the main sewage pipe 1 is completely sealed by the concrete mortar 5, (See Figs. 7 and 8B for reference)

The present invention is not limited to the above-described embodiment, but may be applied to other embodiments of the present invention, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Although the present invention has been described for the purpose of establishing the hermeticity of the sewer connection part, it is possible to secure the reliability of the pipeline including the watertightness or hermeticity of the connection part (the part connected with the "T" shape) And thus it is possible to secure the hermeticity of the pipeline as described above. Therefore, it is possible to prevent groundwater contamination due to the reliability of the pipeline, and to prevent the ground settlement caused by the underground pupil, which has recently become a social problem, The availability will vary.

100 - Formwork body,
110 - front plate,
111 - Branch fitting part,
120 - side plate,
121 - curved portion,
130 - bottom plate,
200 - opening / closing part,
210 - Opening and closing disk,
211 - Circular coupling groove,
220 - Closing plate,
221 - a lower surface portion, 222 - a coupling projection,
223-side portion, 224-side groove portion,
230 - Closing plate for sealing,
231 - upper surface portion, 232 - side surface portion,
233 - a lower surface portion, 234 - a groove portion,
240 - Closing plate for opening,
241 - an upper surface portion, 242 - a side surface portion,
243 - bottom part, 244 - arc face,
245 - straight groove portion,
1 - Main sewer, 2 - branch sewer,
3-connector, 4-stopper,
5 - Concrete mortar.

Claims (4)

And a mold body 100 including a front plate 110 having a branch pipe fitting portion 111 having a U shape at the center and side plates 120 and bottom plates 130 on both sides, In the concrete form,
The opening and closing part 200 is provided with an opening and closing circular plate 210 having a circular coupling groove 211 on the outer circumferential surface thereof, And an engaging protrusion 222 for engaging the circular engaging groove 211 of the opening and closing insertion disc 210 is provided on the lower surface 221 of the lower plate 221. Both side portions 223, And a closing fitting plate (220) having a side groove portion (224).
delete 2. The folding type portable terminal according to claim 1, wherein the opening and closing part (200) has an upper surface (231) and a side surface (232) on the outer circumferential surface so as to coincide with a "U" shaped tube fitting part (111) And a groove portion 234 in which the inner surface of the branch pipe fitting portion 111 of the front plate 110 is fitted is formed in the side portion 232 and the bottom portion 233 of the bottom plate 233, A closing plate 230 for sealing; The upper surface portion 241 and the side surface portion 242 are formed as rectilinear surfaces while the lower surface portion 243 is provided with a semicircular arcuate surface 244 in the upward direction and the side surface portion 242, And an opening closing plate (240) provided with a straight groove portion (245) into which the inner surface of the branch pipe fitting portion (111) of the pipe fitting portion (110) is fitted.
The side plate (120) as claimed in claim 1, wherein one side of the side plate (120), which is in contact with the main sewer pipe (1) embedded in the basement, (121). ≪ RTI ID = 0.0 > 11. < / RTI >

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