KR200342277Y1 - Device for connecting pipe in manhole - Google Patents

Abstract

It is an object of the present invention to provide a sewer pipe connection device of a manhole which can be connected while maintaining the watertightness to a manhole pipe connection such as site casting while constructing by a general site assembly method.

The present invention is made in a circular shape along the outer circumferential surface of the sewer main pipe so as to contact the outer circumferential surface of the sewage main pipe and extends to the outside at the lower end thereof, and a flange is formed on the flange, and a plurality of bolt insertion holes are formed at regular intervals; It is inserted into the outer circumferential surface of the sewage pipe and is located between the fixing plate and the nut plate, the inner surface is formed in a U-shaped cross-section shape of the groove is formed inward and the outer surface is curved outward, the top and bottom are each flat, the flange An elastic member having a through hole penetrating the upper end and the lower end at a position corresponding to the formed insertion hole; A nut plate inserted into an outer circumferential surface of the sewer main pipe and in contact with a lower end of the elastic member, and having a nut installed at a position corresponding to a through hole of the elastic member; It passes through the flange of the fixing plate and passes through the upper and lower ends of the elastic member to provide a pipe joint device of the manhole comprising a fastening bolt fastened to the nut plate.

Description

Device for connecting pipe in manhole}

The present invention relates to a manhole in which a pipe connection port is formed in a wall, and more particularly, to a pipe connection device of a manhole for closely connecting a pipe connection port and a pipe.

Although there are some differences in the conventional manholes, various types of pipe fittings are formed on one side of the side wall, and sewage is directly connected to the sewer main pipe to the pipe fittings of the side wall depending on the use, and valves are installed inside the manhole for water supply. The water pipe is connected to the water supply pipe through the manhole pipe connection. In the telecommunication manhole, the conduit or bundle of wires is introduced into the fuselage through the pipe connection port on the side wall.

Here, in the case of sewage, the connection structure between the side wall pipe connection port of the manhole and the sewer main pipe is very important. In general, the sewage main pipe formed of concrete or various metals and nonmetals (PVC, PE), etc. is connected to the pipe connection port of the manhole. After connecting the sewer main pipe to the pipe connection port formed in a predetermined size in the manhole, the PVC material was melted and soldered or covered with filler, adhesive or cement mortar between the outer circumference and the gap of the connection part.

However, in the conventional construction method, when the precision construction is not performed, if external vibration and tectonic movements occur after installation, the filler, adhesive, or cement mortar of the connection part is easily broken and the leakage occurs from the connection part. Due to the water leakage, there is a problem of settlement of the ground, which requires much attention during construction, and even if precise construction is done, it does not have its own elasticity, so the elevation and settlement of the ground due to external conditions, that is, the temperature change and impact according to the season If the action occurs there is a disadvantage that the soldering portion is damaged.

And above all, there is a problem that the construction itself is difficult when the diameter difference between the pipe connection port and the sewage main pipe is large.

In addition, in the case of a structure in which a separate coupling tool is used in the main sewer pipe of the registration number 195784, which is published in the Korean Utility Model Publication, the branch sewer pipe coupling port has a branch sewer pipe connected to a hole formed in the main sewer pipe. A diffraction portion having rubber packing is formed therein, and the other end thereof covers the hole with a connection socket in which a coupling part is formed, and couples the connection socket to the main sewer pipe by applying an adhesive around the hole formed in the coupling part and the main sewer pipe. The sewer pipe and the coupling part are fastened to be integrated by a band. This is because if the earthquake or severe vibration is continuously received at the branch sewer pipe connected to the main sewer pipe or if the earthquake changes during thawing, the band is pushed to the left and right, and the connection part is separated and leaks. Is generated and the branch sewer pipe Same is possible to have, but because the flowability of the cross direction (longitudinal direction) of the main sewage pipe, there is a problem that the diffraction portion from leaving the branch sewer.

In addition, the Republic of Korea Utility Model Registration No. 242733 discloses a sewage main pipe connection socket that can ensure the watertightness and flexibility by inserting rubber packing inside and outside the connection socket, but this design also provides a diameter of the pipe connection port and the diameter of the sewage main pipe This can be installed only if the connection socket is suitable, and there is a problem that connection sockets of various sizes must be provided in advance for the application of sewage main pipes of various outer diameters.

That is, even though the inner diameter of the cement pipe or plastic material pipe used as the sewage main pipe is different in the pipe thickness depending on the material and the outer diameter according to the material, the problem of the prior art as mentioned is a sewage having a variety of outer diameter The main building is not satisfactorily connected to the manhole pipeline.

In order to solve the above problems, the present invention was devised to solve the above problems, and the sewage main pipe connecting device of the manhole was able to be connected while maintaining the watertightness to the pipe connection port of the manhole such as the site casting while constructing it with a general site assembly method. The purpose is to provide.

In addition, the present invention can be dismantled or restored by simply unscrewing or tightening the bolt in the event of a post-mortem problem, and it is possible to simply connect the sewer main pipe to the pipe connection port, thereby improving the convenience of construction. It is another object to provide a device.

1 is a block diagram of a pipe joint according to an embodiment of the present invention,

Figure 2 is a perspective view showing an assembled state of the pipe joint according to an embodiment of the present invention,

3 is a perspective view illustrating a state in which a pipe equipped with a bonding device is fitted in a manhole according to an embodiment of the present invention;

4 is a partially cutaway perspective view showing a state in which a tube is installed in a manhole through a bonding apparatus according to an embodiment of the present invention;

5a, 5b, 5c is a view showing a part of the bonding apparatus according to an embodiment of the present invention,

6 is a cross-sectional view showing a process in which the pipe is installed in the manhole by the bonding apparatus according to the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: fixed plate 11: flange

12: insertion hole 13: fastening portion

14 fastening hole 15 bolt

20: elastic member 21: through hole

30: nut plate 31: nut

32: steel member 33: female threaded hole

34: pop nut 40: tightening bolt

50: manhole 51: pipeline connection

60: sewage main building 70: mortar

In order to achieve the above object, the present invention is a fixed plate fixed to the outer circumferential surface of the sewage main pipe, an elastic member connected to the fixed plate is located on the outer circumferential surface of the sewage main pipe, the outer diameter of the elastic member to expand the manhole pipe connection port And expansion means for closely contacting the elastic member between the sewer main pipe.

Here, the present invention is a ring structure that the elastic member is inserted between the front end of the sewer main pipe and located between the manhole duct connection and the sewer main pipe, it is preferably made of a U-shaped cross-section curved outward.

In addition, the elastic member is preferably made of a material that is elastically expandable to the side when pressing the top and bottom, such as rubber.

The expansion means may include a plurality of tightening bolts passing through the fixing plate and penetrating the upper end and the lower end of the elastic member, and a nut plate in close contact with the lower end of the elastic member and fastened to the tightening bolt.

Accordingly, when the tightening bolt is tightened, the elastic member is tightened between the fixing plate and the nut and the elastic member is expanded outward.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a pipe joint according to an embodiment of the present invention, Figure 2 is a perspective view showing an assembled state of the pipe joint according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention 4 is a perspective view illustrating a state in which a tube equipped with a joining device is fitted into a manhole, and FIG. 4 is a partially cutaway perspective view illustrating a state in which a tube is installed in a manhole through a joining device according to an embodiment of the present invention.

According to the drawings, the joining device for connecting the pipe connection port 51 and the sewer main pipe 60 of the manhole 50 is fixed plate 10 is fixed to the outer side of the sewer main pipe 60 and the fixing plate ( 10) the ring-shaped elastic member 20 placed along the outer circumferential surface of the sewer main pipe 60, the nut plate 30 disposed along the lower end of the elastic member 20, the fixing plate 10 through the The fastening bolt 40 is fastened to the nut plate 30 by penetrating the upper and lower ends of the elastic member 20.

Accordingly, tightening the tightening bolt 40, the nut plate 30 is moved in the longitudinal direction of the tightening bolt 40 to compress the elastic member 20, the elastic member 20 is the outer side of the radial sewer main pipe 60 While expanding in the direction, the pipeline connection port 51 of the manhole 50 and the sewer main pipe 60 are watertightly joined.

The fixing plate 10 is formed in a circular shape along the outer circumferential surface of the sewage main pipe 60 so as to contact the outer circumferential surface of the sewage main pipe 60, and extends outward at the lower end thereof to form a flange 11 contacting the upper end of the elastic member 20. The flange 11 has a structure in which a plurality of bolt insertion holes 12 are formed at a predetermined interval so that the tightening bolt 40 is inserted.

As such, when the fixing plate 10 has a circular structure, the fixing plate 10 may be mainly used when the fixing plate 10 is fixed to the sewage main pipe 60 in advance by way of electrofusion or the like.

On the other hand, in the case of assembling directly on the site, the fixing plate 10 may be separated into two so as to be installed in the sewage main pipe 60, and may be formed in a semi-circular structure, the fixing plate for binding of the two fixing plate (10) 10, the connection portion extends outwardly from the fastening portion 13, and the fastening portion 13 which is in contact with each other has a structure in which a fastening hole 14 for coupling the bolts 15 is formed at a position corresponding to each other.

Accordingly, when the fixing plate 10 is inserted at both sides of the sewage main pipe 60 and the bolt 15 is inserted into the fastening hole 14 of the fastening part 13 which is in contact with each other, the fixing plate 10 is fixed to the sewage main pipe 60. It will be able to fasten easily and firmly fixed.

Preferably, the sewer main pipe 60 in which the fixing plate 10 is installed is provided between the fixed plate 10 and the sewer main pipe 60 which are fastened to the sewer main pipe 60 by installing a resin ring 16 of rubber material along an outer circumferential surface thereof. While the resin ring 16 is in close contact with each other to ensure the watertightness between the fixed plate 10 and the sewer main pipe 60.

The elastic member 20 has a ring shape to be fitted to the outer circumferential surface of the sewage main pipe (60) is formed in a U-shaped cross-sectional shape of the inner surface is formed with a groove inward and the outer surface is curved outward, the top and bottom is a flat structure It comes in contact with the flange 11 and the nut plate 30, respectively.

In addition, the elastic member 20 is formed in a position corresponding to the insertion hole 12 formed in the flange 11, the tightening bolt through hole 21 penetrating the upper and lower ends, respectively.

On the other hand, the nut plate 30 serves to evenly tighten the elastic member 20 by dispersing the function of the nut fastened to the tightening bolt 40 and the pressure of the tightening bolt 40.

To this end, the nut plate 30 is made of a flat plate structure in contact with the lower surface of the elastic member 20, the tightening bolt 40 in a position corresponding to the through-hole 21 of the elastic member 20 therein The nut 31 which is fastened with the holder is fixedly installed.

Here, the nut plate 30 is preferably made of a plastic material, and the nut 31 fixed to the nut plate 30 may be separated from the nut plate 30 by the rotational force of the tightening bolt 40 and thus may turn away. As shown in 5a, each nut 31 installed in one nut plate 30 is interconnected by an iron member 32 or the like to withstand the rotational force transmitted from the tightening bolt 40.

In addition, according to another embodiment of the present invention, as shown in Figure 5b, the nut plate 30 is made of a metal material, such as a plated iron plate or stainless steel, the female screw for fastening bolts directly to the nut plate 30 The hole plate 33 is processed, and the nut plate 30 is directly engaged with the tightening bolt 40 via the female screw hole 33 so that the nut plate 30 acts as a nut 31 and elasticity. At the same time to perform the role of pressing the member 20.

5c is a structure of a nut plate 30 according to another embodiment of the present invention, in which a pop nut 34 is inserted and fixed to a nut plate 30 made of a metal material.

On the other hand, when the sewage main pipe 60 is installed in the manhole 50 to terminate the work by finishing with mortar, as shown in Figure 4 the pipeline of the sewage main pipe 60 and the manhole 50 by this bonding device The state of closing the inside and outside of the manhole 50 with the mortar 70 in a state where the connector 51 is completely fixed is well illustrated.

Hereinafter, the operation of the sewer main pipe connecting device having the above-described structure will be described with reference to FIG.

As shown, since the inner diameter of the pipe connection port 51 of the manhole 50 and the outer diameter of the sewage main pipe 60 do not coincide with each other, there is a gap that is not filled by a normal connecting socket. By the operation, the connecting device fills the gap to closely connect the sewer main pipe 60 and the manhole 50.

The fixed plate 10 installed in the sewage main pipe 60 may be shipped fixed to the sewage main pipe 60 in advance, but in the following description, the case of assembling in the field will be described as an example.

First, the resin ring 16 of rubber material is installed at the fixed plate 10 installation position of the sewage main pipe 60, and the fixed plate 10 separated into two on the resin ring 16 is brought into close contact with each other. When the bolts 15 are inserted into the fastening holes 14 of the fastening portions 13 formed at the connection portions of the fixing plates 10, the two fixing plates 10 are tightened and fixed to the outer circumferential surface of the sewer main pipe 60. .

At this time, the resin ring 16 installed between the fixed plate 10 and the sewer main pipe 60 is compressed to maintain the airtightness between the sewer main pipe 60 and the fixed plate 10.

When the fixing plate 10 is installed, the elastic member 20 is inserted into the sewer main pipe 60 to coincide with the through-hole 21 of the elastic member 20 and the insertion hole 12 formed in the flange 11 of the fixing plate 10. The fastening bolt 40 is inserted through the holes 12 and 21 and fastened to the nut 31 of the nut plate 30 located at the bottom of the elastic member 20.

When the assembly of the apparatus is completed in the sewage main pipe 60, the sewage main pipe 60 is inserted into the pipeline connection port 51 of the manhole 50 so that the elastic member 20 is positioned inside the pipeline connection port 51.

In this state, the operator turns the tightening bolt 40 heading toward the manhole 50 by using a screwdriver or other jig, thereby tightening the tightening bolt 40 against the nut 31 positioned opposite the elastic member 20. Tighten.

When the tightening bolt 40 is fastened to the nut 31 and continues tightening, the gap between the head of the tightening bolt 40 and the nut plate 30 on which the nut 31 is gradually reduced decreases both ends of the elastic member 20. Pressed inward, the elastic member 20 is both ends are pressed inward, the outer surface is expanded outward.

As a result, the outer surface of the hollow ring is pushed out and expanded to be in close contact with the inner surface of the pipe connector 51 of the manhole 50.

As the elastic member 20 expands in this way, the gap between the pipe connection port 51 of the manhole 50 and the sewer main pipe 60 is filled by the elastic member 20 to secure watertightness and at the same time, the sewer main pipe 60 is firmly secured. It will be able to be fixed to the manhole (50).

When the elastic member 20 is expanded to some extent and the sewage main pipe 60 is installed in the manhole 50, the mortar 70 is filled in the pipe connection port 51 of the manhole 50 to finish the construction.

According to the pipe connecting device of the manhole according to the present invention as described above, while using the site precast or factory precast manhole construction there is an effect that can maintain sufficient watertightness as in the site casting.

In addition, it is possible to install the sewage main pipe in the manhole pipe connection by a simple operation, it is possible to improve the convenience of the construction, thereby reducing the effort and time required during the construction has the effect of reducing the cost.

In case of the construction by the conventional construction method, if any problem occurs after construction, there is no choice but to renovate the construction.However, in the case of construction with this design, even if problems occur after construction, simply tighten or loosen the bolts, so that the manhole and the wall It is effective to dismantle or restore the assembly state of the.

Claims (4)

A circular plate formed along the outer circumferential surface of the sewage main pipe so as to be in contact with the outer circumferential surface of the sewage main pipe and extending outward at a lower end thereof, and a plurality of fixing plates having a plurality of bolt insertion holes formed at predetermined intervals; It is inserted into the outer circumferential surface of the sewage pipe and is located between the fixing plate and the nut plate, the inner surface is formed in a U-shaped cross-section shape of the groove is formed inward and the outer surface is curved outward, the top and bottom are each flat, the flange An elastic member having a through hole penetrating the upper end and the lower end at a position corresponding to the formed insertion hole; A nut plate inserted into an outer circumferential surface of the sewer main pipe and in contact with a lower end of the elastic member, and having a nut installed at a position corresponding to a through hole of the elastic member; Fastening bolts which are fastened to the nut plate through the upper and lower ends of the elastic member through the flange of the fixing plate Manhole pipe joints comprising a. According to claim 1, wherein the fixing plate is separated into two and the connection portion of the fixed plate separated by a fastening portion is formed to extend to the outside, the fastening hole for the bolt coupling at the position corresponding to each other in the mutually fastening portion is further formed, sewage main pipe Manhole pipe joints characterized in that the fastening can be fixed to. The manhole pipe joint device according to claim 2, wherein a rubber ring is further provided between the fixing plate and the outer circumferential surface of the sewer main pipe to ensure watertightness between the fixing plate and the sewer main pipe. According to claim 1, wherein the nut plate is made of a plastic material, at least one nut is fixed to the nut plate is a pipe joint device of the manhole, characterized in that interconnected with a steel member.