KR20090015775A - Manhole, apparatus for manufacturing thereof, method for manufacturing thereof, and method for connecting manhole - Google Patents

Abstract

A manhole, a manufacturing apparatus thereof, a manufacturing method thereof, and a connecting pipe connecting method of the manhole are disclosed. The manhole of the present invention has a manhole body having a predetermined internal space, a connector formed in the form of a hole penetrated on one side of the manhole body and a coupling portion coupled to the inner peripheral surface of the connector and extending from the coupling portion to the outside of the connector The extension part has an extension part into which a predetermined connection tube is fitted, and the extension part includes a connector which can change an angle with respect to the coupling part. Therefore, the connection angle of the connecting pipe to be connected can be adjusted, and the range of construction can be extended, and the watertightness can be ensured with shortening of the construction time.

Description

Manhole, manufacturing apparatus thereof, manufacturing method thereof and connection pipe connection method of manhole {manhole, manufacturing equipment for the same, manufacturing method for the same and connecting method for the manhole with a connecting pipe}

The present invention relates to a manhole, a manufacturing apparatus thereof, a method for manufacturing the same and a connection method for connecting the manhole, and more particularly, a manhole, a manufacturing apparatus, a manufacturing method thereof, and a manhole capable of coupling a connection tube having various connection angles. It relates to a connection tube connection method.

In various civil works, building works, and road works, sewage pipes for treating rainwater, sewage, and wastewater are required. The manhole is installed in the middle of the sewer pipe for the purpose of inspection, cleaning, ventilation, ventilation, bonding, branching, etc. in the conduit.

The manufacturing method of the manhole generally used is largely divided into the method of cast-in-place and the method of using a ready-made manhole.

The current site casting method is to install the formwork at the place where the actual manhole is installed and to assemble the reinforcing bar, and then, the concrete produced by mixing the predetermined materials is poured into the formwork, and after the predetermined curing period, This is how to make a manhole by removing it.

However, the field casting method as described above has many problems. First, the manufactured manhole has a problem in that it is difficult to completely block leakage due to the inability to connect the inlet pipe and the outlet pipe, which is not precisely constructed, and to install the formwork at the site, thereby making it difficult to adjust the height of the manhole. In addition, there is a problem in that the construction period is prolonged due to the need for curing period of the poured concrete, resulting in traffic jams, thereby increasing civil complaints. In addition, construction costs are also relatively high.

As an alternative to the on-site maneuvering method which has many problems as described above, a method of using a ready-made manhole has been proposed, and the national standard (KS F 4012: sewage concrete manhole) was enacted in 1970, and was revised. It is reaching the present.

Referring to Figures 1 and 2, the configuration of a general ready-made manhole is as follows.

As shown in FIG. 1, the old manhole is a lower sphere manhole 30 having a lower portion closed, a vertical sphere manhole 20 coupled to an upper portion of the lower sphere manhole, and having an upper portion and a lower portion opened, and the vertical sphere manhole ( 20 is provided on the upper portion, and is configured to include a top plate manhole 10 having a manhole cover insert portion 11 into which the manhole cover is inserted. Then, the sealing members 41 and 42 for blocking the leakage are fitted to the site where each manhole is assembled.

The ready-made manhole is formed with spigots 23 and 33, which are fitting parts of the manholes, and sockets 15 and 25, which are fitting parts corresponding to the spigots when the manholes are mutually coupled. First, a spigot 33 is formed at an upper portion of the lower spherical manhole, and a socket 15 is formed at a lower portion of the upper manhole 10. In addition, the vertical sphere manhole 20 is formed with a spigot 23 at the top and a socket 25 at the bottom, respectively.

By the spigots 23 and 33 and the sockets 15 and 25, the respective manholes can be smoothly coupled and can withstand the external force in the transverse direction.

Meanwhile, although not shown, an inclined sphere manhole may be further provided between the vertical sphere manhole 20 and the upper plate manhole 10 to narrow the upper tube diameter and to withstand the load on the road surface.

Then, the transfer bolts 53 and 54 capable of transferring the shaped manhole are fastened to the fastening nuts provided on the outer surface of the manhole. 1 and 2 illustrate a form in which the transfer bolts 53 and 54 are fastened to the vertical spherical manhole 20 and the lower spherical manhole 30, respectively.

And the inner lower portion of the lower sphere manhole 30 may be provided with an invert (32) as needed, the invert 32 serves to facilitate the flow of sewage in the manhole and to prevent the deposition of dirt Do this. This invert 32 is mainly provided in the manhole for the treatment of sewage.

On the other hand, the lower spherical manhole 30 is provided with a plurality of connection ports 31 for connecting the inlet pipe or outlet pipe.

Herein, a method generally used among the conventional methods of connecting the connection pipe to the connection port will be described with reference to FIGS. 3 to 7.

3 and 4, an embodiment of a conventional connection tube connection method will be described.

First, the connection pipe 110 is inserted into a connection port formed sufficiently larger than the diameter of the connection pipe, and a backup material 120 for preventing leakage of mortar is installed.

Next, in order to prevent the connection pipe 110 from being inserted into the inner space of the manhole 30, and to prevent leakage of mortar, the inner hole 130 for closing the connection port which can be adjusted by the clamp 140 is manhole ( 30) is installed inside. And the waterproof sheet 150 for sealing the outer surface of the connection pipe 110 and the manhole 30 is installed on the outer surface of the manhole.

And the waterproof sheet 150 is fixed to the outer surface of the manhole 30 by the coupling band 160.

Then, the non-shrink mortar 170 is injected through the mortar injection hole 180 formed thereon, and when the injection is completed, care is taken so that vibration and impact are not applied until the non-shrink mortar 170 is hardened.

Here, curing refers to a process of curing the non-shrink mortar after the injection by a predetermined method, by curing the concrete by the curing process to a condition suitable for the hydration of the cement for a period of time to allow the concrete to harden.

When the curing is finished, remove the waterproof sheet 150 and the internal formwork 130 to complete the connection pipe connection.

5 to 7, another embodiment of the conventional connection tube connection method will be described.

In this embodiment, the anchor anchor installation hole is provided at the same position as the bolt through hole of the flange 235 attached to the nipple tube 233 around the connection hole of the manhole outer surface, and a set anchor 251 is provided.

The water-expandable rubber ring 239 is installed at the tip of the nipple tube 233 to which the flange 235 is welded.

After passing through the water-expandable rubber ring 239, the circular sealing plate 237, the nipple tube 233 with a flange, and the reinforcing flange 231 through the set anchor 251 installed in the manhole, the nut 253 Tighten to complete the connection.

However, the conventional method of connecting the connection pipe in the manhole has the following problems.

First, in the case where the connecting tube is provided as the connecting port with the center axis of the connecting pipe coinciding with the central axis of the connecting port, the coupling between the connecting pipe and the connecting port is easy. Time and cost are increased by increasing the diameter of the connection port or other additional work for joining, and it is difficult to secure stability even after joining.

In addition, the method of connecting the connection tube by injecting into the non-shrink mortar has a problem in that the construction time is required as long as the curing time of the non-shrink mortar, and the construction time is extended because subsequent work cannot proceed until curing.

In addition, when the impact is applied to the connection part by vibration or the like before the solidification of the cement mortar has a problem that a gap occurs between the connection tube and the mortar and the water tightness is inferior. In addition, the construction process is complicated and cumbersome because it has to go through various steps for connecting the connection tube such as mortar mixing, pouring, and installation of internal formwork.

On the other hand, the method of connecting the connection pipe by using the set anchor and the flange, the work required to drill a hole in the manhole for the installation of the set anchor, there was a problem that the manhole is damaged due to the impact on the manhole during the drilling process .

In addition, there is a problem in that the construction cost increases because a large number of accessory materials such as nipple pipe, water-expandable rubber ring, circular sealing plate, nipple pipe flange, reinforcing flange is required. And when the installation of the set anchor has a problem that it is difficult to reuse the manhole.

One object of the present invention for solving the above problems is to form a connector capable of adjusting the connection angle of the connection tube integrally on the inner peripheral surface of the connection port can be inserted into the connection hole at various connection angles, the manhole, its manufacturing apparatus, It provides a method for manufacturing and connecting the connection pipe of the manhole.

Another object of the present invention is to provide a manhole, an apparatus for manufacturing the same, a method for manufacturing the same, and a method for connecting a manhole to the watertightness of the connection portion between the manhole and the connection pipe.

Still another object of the present invention is to provide a manhole, a manufacturing apparatus thereof, a manufacturing method thereof, and a connection pipe connecting method of the manhole, which reduce construction time and construction cost.

According to a preferred embodiment of the present invention for achieving the above objects of the present invention, the manhole comprises a manhole body, a connector and a connector.

The manhole body has a predetermined space therein, and the connector is configured in the form of a hole penetrated to one side of the manhole body. The connector may be formed of at least one. The connector has a coupling portion coupled to the inner circumferential surface of the connector and an extension portion extending from the coupling portion to the outside of the connector and fitted with a predetermined connection tube, and the extension portion can change an angle with respect to the coupling portion. Do.

The connector in the present invention may be formed of a "stretchable" material.

The coupling portion may be formed with a protrusion having a coupling protrusion embedded in the manhole body in order to increase the coupling force with the inner side surface of the connection hole. In addition, the coupling protrusion may be configured in plural numbers, and each of the coupling protrusions may have the same size or different shapes.

Meanwhile, the manhole may further include a coupling reinforcing member that is coupled to the outer circumferential surface of the extension portion and that the coupling tube is reinforced with the coupling force of the extension portion and the connection tube in a state of being fitted into the extension portion. The reinforcing member may be used, such as a stainless band can be easily fastened.

In the lower portion of the inner space of the manhole body, an inverted groove-shaped inverting fluid can flow.

In addition, the manhole of the present invention includes a manhole body having a predetermined internal space, a connector formed in the form of a hole penetrated on one side of the manhole body, and a coupling part coupled to the inner circumferential surface of the connector and the coupling part on one side of the coupling part. The extension part is formed outside the connection port with a predetermined angle, and has an extension part into which a predetermined connection tube is fitted, and the extension part can be configured to include a connector that can be changed in angle within the predetermined angle range relative to the coupling part.

The connector may further include an elastic part that provides elasticity when the coupling part and the extension part are provided so that the extension part changes an angle relative to the coupling part.

In addition, a “ring” type reference tube may be formed on the inner circumferential surface of the coupling portion.

In addition, the manhole of the present invention is formed with a manhole body having a predetermined internal space, a connector formed in the form of a hole penetrated on one side of the manhole body and a coupling portion coupled to the inner peripheral surface of the connector and extending outwardly from the coupling portion. And an inclined portion which is formed to be inclined as the diameter decreases and an extended portion which is formed from an outer end of the inclined portion to have a predetermined connection tube fitted therein, wherein the inclined portion and the extension portion include a connector capable of changing an angle relative to the engaging portion. Can be.

According to another embodiment of the present invention, a manhole body having a predetermined internal space, a connector formed in the form of a hole penetrated on one side of the manhole body, and a coupling part coupled to the inner circumferential surface of the coupling port, It may be configured to include a connector having a crimping portion that is formed to extend the outer side elongation is formed of a predetermined connection tube and a corrugated form to connect the coupling portion and the extension to the angle change.

Here, the corrugation portion is connected to one side of the coupling portion and the extension portion along the longitudinal direction of the connection tube, the inner side is disposed in the direction intersecting with the first wrinkle portion and the first wrinkle portion is fitted, It is possible to configure to include a second fold connecting the outer end of the coupling portion and the extension.

On the other hand, the first wrinkle portion and the second wrinkle portion may be disposed perpendicular to each other, the specific arrangement shape of the first wrinkle portion and the second wrinkle portion may be variously modified. In addition, the width of the first wrinkle portion may be configured to become gradually larger toward the outer side of the connector.

In addition, the connector may be made by bonding two or more members separately manufactured for convenience of manufacture. Particularly, a part of the coupling part and the second wrinkle part may be separately manufactured to be bonded to the connector.

According to the present invention, a manhole manufacturing apparatus in which concrete is introduced into and shaping a manhole is combined with an outer mold for forming an outer surface of the manhole, an inner mold for forming an inner surface of the manhole, and at least one of the outer mold and the inner mold. It is provided on the outside of the splice forming mold and the splice forming mold for forming the splice of the manhole, and the coupling part is coupled to the manhole to be formed, and the extension is formed outward from the coupling part and the predetermined connector is fitted. The extension part may include a connector that is capable of changing an angle with respect to the coupling part.

The reference tube of a ring-shaped reference tube in contact with the inner peripheral surface of the connector may be further included.

The splice forming die may include a splice forming tube provided on the inner circumferential surface of the connector and a splice forming jig supporting the splice forming tube.

The jig forming jig may include a plate formed in a flat plate shape and provided in contact with the inner circumferential surface of the reference tube to support the reference tube.

The jig connecting port forming jig may include a jig shaft, a jig cylinder formed toward the jig plate with the jig axis as a center, and a jig piston coupled to an inner side surface of the jig cylinder. Here, the method of supporting the reference tube through the connection port forming jig may be a method in which the stroke of the jig piston is adjusted by tightening and loosening a nut mounted on the jig piston having a thread.

Here, the plate, the jig cylinder and the jig piston may be formed of a plurality of, it may be arranged at the same angle at the center of the jig axis.

On the other hand, the manhole manufacturing apparatus may further include an auxiliary pipe for securing a space in which one end of the connection pipe is disposed.

In addition, the manhole manufacturing apparatus may further include an invert forming mold which is formed by a semi-cylindrical upper portion of the inner mold to smooth the flow of the fluid flowing in the manhole and form an invert for preventing the deposition of dirt. .

In addition, the method of manufacturing a manhole of the present invention includes a concrete input step of injecting the concrete produced by mixing a predetermined material into the space formed by the inner mold and the outer mold, an outer mold to form the outer surface of the manhole, and An inner mold forming an inner surface of the manhole, and a connector positioned between the outer mold and the inner mold to form a hole-shaped connection hole through the manhole, and capable of coupling a pipe-shaped connection tube at various connection angles. A manhole forming step of forming a manhole by a manhole manufacturing apparatus, and a demolding step of separating the completed manhole from the inner mold and the outer mold before curing or after curing at a predetermined temperature. Here, the curing step and the demolding step may be changed in order by the difference in the manufacturing method. For example, when using concrete with high slump, such as ready-mixed concrete, demolding is used after curing is completed.However, when vibrating using non-slump or low dry mix concrete, curing is performed after removing the mold. do.

The material of the inner mold and the outer mold may be made of one of iron, rubber and PVC.

According to the present invention, by attaching a connector made of a flexible material to the inner peripheral surface of the connection port can adjust the connection angle when the connection pipe is inserted into the connection port can extend the construction range for connecting the connection pipe, work for the connection of a separate connection pipe There is an effect that can reduce the construction time and construction cost without this.

In addition, it is possible to prevent the outflow of the fluid through the connector integrally attached to the manhole, it is possible to ensure the watertightness in the state that the connection pipe is fitted to the connection port.

In addition, the connector is provided with an extension extending to the outside of the manhole to facilitate the initial connection work of the connection pipe, the coupling reinforcing member is coupled to the extension portion surrounding the outside of the connection pipe to increase the coupling force of the connection pipe and the connector. Not only is there an effect of improving watertightness.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention in which the object of the present invention can be specifically realized are described with reference to the accompanying drawings. In the description of this embodiment, the same name and the same reference numerals are used for the same configuration and additional description thereof will be omitted.

For convenience of description, the connection pipe connection structure mainly targeting the lower spherical manhole among the prefabricated manholes will be described. General form of concrete structure.

8 to 10, a first embodiment of a manhole according to the present invention will be described. 8 is a partial cross-sectional view showing a connection pipe connection state of the manhole according to the first embodiment of the present invention, Figure 9 is a partial plan view showing a connection pipe connection state of the manhole of Figure 8, Figure 10 is a connector of FIG. It is sectional drawing to show.

The manhole according to the present embodiment includes a manhole main body 300, a connector (see FIG. 1, 31), and a connector 370.

The manhole body 300 is provided with a predetermined accommodation space therein, the upper portion is opened and the lower portion is closed, but can be modified in various forms such as the upper and lower portions are open. On the other hand, in the present embodiment, the manhole body 300 illustrates a form in which the lower portion is blocked.

And the cross section of the inside of the manhole body 300 is generally made of a hollow hollow, but if necessary, various cross-sectional shape, such as a square, a square chamfered on four corners, a square groove formed on four corners Can have

The connector 31 is an opening formed at one side of the manhole body 300, and the connector 31 is fitted with a pipe 350 in the form of a pipe. The connection pipe 350 is generally an inlet pipe or an outlet pipe for the inlet and outlet of the fluid.

The connector 370 is formed integrally with the manhole body 300 on the inner circumferential surface of the connector 31 formed in the manhole body 300 so that the connector tube 350 is fitted into the connector 31. It plays a supporting role. Specifically, the connector 370 serves to guide the connector tube 350 when the connector 31 is inserted into the connector 31, and maintains the connector tube 350 fitted to the connector 31. Together. In addition, the connector 370 may serve to prevent the leakage of the fluid in the state in which the connection pipe 350 is fitted to the connection port 31.

The connector 370 includes a coupling part 373, an extension part 371, and an elastic part 372. The coupling part 373 is integrally coupled with the inner circumferential surface of the connector 31, and a plurality of coupling protrusions 375 are formed on the outer surface thereof. The coupling protrusion 375 may be formed to have a larger outer end than that of other portions, which is to increase the coupling force of the coupling protrusion 375. In the present embodiment, seven coupling protrusions 375 are formed, but the number is not limited or limited.

The extension part 371 maintains a predetermined angle with the coupling part 373 and extends to the outside of the manhole body 300. The inner diameter of the extension part 371 may be formed to be the same as or larger than the outer diameter of the connection tube 350 so that the connection tube 350 may be more easily fitted.

When the connection pipe 350 is fitted inside the connector 370 through the extension part 371, the connection part 371 surrounds the outer circumferential surface of the connection pipe 350 and the connection pipe ( 350 can be easily connected.

And, in the present embodiment, as shown in Figure 8, the coupling reinforcing member 380 is coupled to the outer peripheral surface of the extension portion 371 in the state in which the connection pipe 350 is fitted into the connector 31 The coupling force of the extension part 371 and the connection pipe 350 may be reinforced.

On the other hand, at the end of the extension portion 371, the separation preventing projection 381 is formed to prevent the separation of the coupling reinforcing member 380 is formed by the coupling reinforcing member 380 is wrapped around the extension 371 ) May be prevented from escaping to the outside of the extension 371.

The elastic portion 372 extends from one end of the coupling portion 373 to the extension portion 371. The elastic part 372 is formed in a shape in which the center side is bent at a predetermined angle and has a property of restoring when an external force is applied in the vertical direction. That is, when the coupling part 373 and the extension part 371 are close to each other, an elastic force is generated to space the coupling part 373 and the extension part 371 to the contrary, and conversely, the coupling part ( When the extension portion 373 and the extension portion 371 are separated from each other, an elastic force is generated to close the coupling portion 373 and the extension portion 371.

In general, in order for the connection pipe 350 to be fitted into the connection port 31, the center line of the connection pipe 350 and the connection port 31 should be substantially coincident with each other. If the center line of the connection pipe 350 is not parallel to the center line of the connection port 31, the connection pipe 350 may not be easily inserted into the connection port 31.

However, if the connector 370 of the present invention is used, the elastic portion 372 can be deformed by the predetermined angle even if the connection pipe 350 is fitted at an angle with respect to the connector 31. The connection pipe 350 can be easily fitted to the connection port 31.

On the other hand, on the inner circumferential surface of the connector 370 is preferably provided with a ring-shaped reference tube 341 in contact with the connecting tube 350. Here, the reference tube 341 is in contact with one end of the connection tube 350 and the connection tube 350 and the flow path are connected, so that the reference tube 341 is fitted into the connection port 31. It is desirable to have an inner diameter equal to the inner diameter of 350 for smooth flow of the fluid.

The outer diameter of the reference tube 341 is configured to be in close contact with the connector 370 to maintain watertightness. The length of the reference tube 341 is not limited, and FIG. 8 illustrates a form having a length of about half of the width of the connector 31.

Referring to Figures 11 to 13, the manufacturing apparatus for manufacturing the above-described manhole will be described. Here, FIG. 11 is a perspective view showing the manhole manufacturing apparatus for manufacturing the manhole of FIG. 8, FIG. 12 is a sectional view taken along line II of FIG. 11, and FIG. 13 is a plan view showing the connector forming jig of FIG.

The apparatus for manufacturing a manhole according to the present embodiment basically includes an outer mold 310, an inner mold 320, a pallet 330, a connector forming mold 340, and an invert forming mold 360.

The outer mold 310 is a component forming the outer shape of the manhole, and the outer shape of the manhole is determined according to the shape of the outer mold 310.

Accordingly, the shape of the outer mold 310 forming the outer shape of the manhole may also be formed as a circle, a square, a square chamfered at four corners, a quadrangular square formed at four corners, and the like, according to the shape of the desired manhole. .

In the present embodiment, in order to manufacture a manhole having a square shape having a square groove formed at four corners, which is generally used for a lower spherical manhole, a square groove is formed at four corners of the cross section of the outer mold 310. It is an example of a rectangular shape.

On the other hand, in the present embodiment, the plurality of mold frames 311 and 312 are assembled by a predetermined connection means in order for the outer mold 310 to form a manhole of various heights. For example, the connecting means 315 may be made by inserting a bolt into the fastening hole provided in the mold frame and tightening with a nut.

Through such a configuration, even if the plurality of outer molds 310 in accordance with the standard is not provided, by appropriately combining the plurality of mold frames 311 and 312, manholes of various standards can be produced.

In addition, the mold frames 311 and 312 of the outer mold 310 are composed of a plurality of sub-mold frames 311a, 311b, 312a, and 312b respectively divided vertically to form a structure that can be combined and dismantled. In the present exemplary embodiment, the mold frame 312 positioned at the upper portion includes two sub mold frames 312a and 312b, and the mold frame 311 positioned at the lower portion includes two sub mold frames 311a and 311b. .

By forming the outer mold 310 by combining the plurality of vertically divided sub-mold frames 311a, 311b, 312a, and 312b, the manhole and the outer mold 310, which have been completely formed, can be separated more easily. Demolding can be performed smoothly.

The inner mold 320 is provided inside the outer mold 310 and is a component forming an inner space of the manhole. Here, since the inner cross section of the manhole to be formed may be circular or square, the inner mold 320 is formed in a shape corresponding thereto. In this embodiment, to form a manhole having a circular cross section of the inner space, the cross-sectional view of the inner mold 320 is made of a circular corresponding to this.

In addition, the inner mold 320 is configured to be inclined at an angle of 1 to 3 ° with respect to the vertical direction so as to facilitate the demolding in the demolding step.

On the other hand, the outer mold 310 and the inner mold 320 is formed upside down shape, forming the bottom surface of the manhole in the upper portion of the molding space formed by the outer mold 310 and the inner mold 320 Made of structure.

Therefore, there is no need for a separate fixing device for fixing the inner mold 320 to a position raised by a predetermined height in the outer mold 310. In addition, after demolding the outer mold 310 and the inner mold 320, the hassle of filling concrete in the remaining space while removing the fixing device is eliminated, and since the manhole is integrally formed, the product structure becomes dense.

The pallet 330 is formed in a predetermined step corresponding to each other to form a spigot (see FIG. 1, 33), which is a part to be fitted during mutual coupling of the manhole to be formed. The spigot 33 of the lower spherical manhole formed by this configuration corresponds to the shape of the socket (see FIG. 1, 25) of the vertical spherical manhole (see FIG. 1, 20) coupled with the lower spherical manhole.

On the other hand, in the present embodiment, the fastening nut (see Fig. 2, 52) is further provided in the manhole manufacturing apparatus.

The fastening nut 52 is a component that allows the fastening bolt 54 to be coupled for the transfer of the molded manhole, and the fastening nut 52 is a desired position of the outer mold 310. It is embedded in the manhole to be formed and formed in the integrally formed with the manhole.

The transfer bolt 54 is specifically used for transfer, loading, unloading, construction, etc., and it is common to use an eye bolt as shown in FIGS. 1 and 2.

In addition, at least one fastening hole is disposed in the outer mold 310 to allow the fastening nut 52 to be fastened to the outer mold by a fastening member. Therefore, it is possible to couple the transfer bolt 54 to various positions of the manhole to be formed by fastening the fastening nut 52 to the fastening hole corresponding to the position where the transfer bolt 54 is fastened.

The fastening nut 52 should be adapted to the arrangement of the conveying bolts 54 in the manholes to be molded, and is preferably arranged at a position opposite to each other and at the same height.

On the other hand, since the fastening nut 52 is a component that is coupled to the transfer bolt 54, the fastening member for coupling the fastening nut 52 to the outer mold 310 is the transfer bolt ( It shall have a thread with the same dimensions as 54). Therefore, it is preferable to couple the fastening nut 52 to the outer mold 110 by using the transfer bolt 54 itself as a fastening member.

The filling member 319 is coupled to a fastening hole which is not fastened with the fastening nut 52 among the fastening holes.

The inverting mold 360 is a mold for forming the invert 32 of the manhole, and is formed in a shape corresponding to the invert 32 of the manhole. Specifically, the inverted forming mold 360 forms the bottom surface (see FIG. 2, 34) of the manhole block by the bottom surface forming mold 361, and the manhole block bottom surface (ie, the flow path tube 363). A flow path is formed in 34).

The connector forming mold 340 is coupled to at least one of the outer mold 310 and the inner mold 320 to form the connector 31 of the manhole. As shown in FIG. 10, the present embodiment is configured to be detachably coupled to the outer mold 310 by a predetermined fastening member 347b.

On the other hand, the connector 370 is formed on the outside of the connector forming die 340 integrally formed with the manhole as described above, and assists to fit the connection pipe 350 provided at various connection angles to the connector 31. Is provided.

The connector forming mold 340 includes a connector forming pipe 345 provided on the inner circumferential surface of the connector 370, and a connector forming jig 347 supporting the connector.

And the connection port forming tube 345 is preferably configured to include a reference tube 341, an auxiliary tube 342 and a connector fixing ring 343 made of a separate member. The reference tube 341, the auxiliary tube 342 and the connector fixing ring 343 are all provided on the inner circumferential surface of the connector 370.

Specifically, the reference tube 341 is positioned to abut one end of the connection tube 350. The reference tube 341 is a portion that is embedded in the manhole after manufacturing the manhole, and has the same inner diameter as the connecting tube 350 connected. In addition, the outer surface of the reference tube 341 has a structure and diameter that can be in close contact with the connector 370 to maintain watertightness. In addition, the reference tube 341 may have a thickness of about 1/2 of the thickness of the connector 31.

The auxiliary pipe 342 is fitted between the extension part 371 and the coupling part 373 when the extension part 371 is folded toward the coupling part 373 in the connector 370. Here, the extension part 371 of the connector 370 is arranged to be folded into the inside of the connector forming tube 345, for this purpose, the connector 370 is stretched to be folded as described above. Made of possible materials.

The auxiliary pipe 342 is a pipe that is removed after the manufacture of the manhole is completed, and secures a space in which one end of the connection pipe 350 is disposed. The length of the auxiliary pipe 342 may be determined in consideration of the thickness generated by folding the extension 371 from the length of the connection port 31 minus the length of the reference pipe 341. In addition, the thickness of the auxiliary pipe 342 is preferably formed so thin that the extension portion 371 can be easily folded to the coupling portion 373 side when manufacturing the manhole.

The connector fixing ring 343 is positioned inside the coupling part 373 so as not to be unfolded when the extension part 371 is folded toward the coupling part 373. The connector fixing ring 343 may use a well bent corrugated pipe.

The connection port forming jig 347 is a kind of jig, for example, the intermediate shaft extends or expands a structure or two or more arms arranged at the same time as the arm expands or folds when rotated, such as a turnbarl. Retreat the jig to adjust the arm length.

In the present embodiment, the connector forming jig 347 includes a plate 347e, a jig piston 347c, a jig cylinder 347d, a jig shaft 347a, a fastening member 347b, and a fastening nut 347f. do. The plate 347e may be formed in a flat plate shape and may correspond to an inner circumferential surface of the connector forming tube 345. That is, when the inner circumferential surface of the connection port forming tube 345 is formed in a circular shape, it is preferable that the plate 347e is also formed of a circular flat plate. The plate 347e may be configured in plural, and in this embodiment, three plates are provided, but the number is not limited or limited.

Through the plate 347e, the reference tube 341 and the connector fixing ring 343 receive a crimping support force, and as a result, the connector 370 receives a crimping support force in a radially outward direction of the connector 31. .

One end of the jig piston 347c is coupled to the jig shaft 347a, and one end of the jig cylinder 347d is coupled to the plate 347e. The jig cylinder 347d inserts the jig piston 347c into an inner space to allow the jig piston 347c to reciprocate linear motion. At this time, a thread is formed on the outer surface of the jig piston 347c to advance and retract the jig cylinder 347d by the rotation of the tightening nut 347f.

The jig shaft 347a is connected to one end of the jig piston 347c to support the plate 347e, the jig piston 347c, and the jig cylinder 347d formed in plural. A fastening nut to which the fastening member 347b is coupled may be formed at the center of the jig shaft 347a.

In addition, fastening holes 316 are disposed in the outer mold 310 so that the connector forming mold 340 is coupled to the outer mold 310 by the fastening member 347b at predetermined intervals. In FIG. 11, the fastening holes 316 are disposed on four surfaces of the outer mold 310 at regular intervals in the vertical direction.

Meanwhile, the fastening hole 316 for fastening the connection hole forming mold 340 and the fastening hole for fastening the fastening nut 52 may be used interchangeably.

On the other hand, the filling member 319 is coupled to the fastening hole 316 is not fastened to the connector forming mold 340, for example, the filling member 319 may be a wrench bolt (wrench bolt) may be applied.

Referring to Figure 14, it will be described the connection state of the connecting tube fitted obliquely to the connector as follows. Here, FIG. 14 is an operation diagram shown to explain a scene in which the connecting pipe is obliquely coupled to the connecting port in the first embodiment.

As shown in the drawing, the connection pipe 350 may be provided at an angle by the connection angle α with respect to the connection port (see FIG. 1 and 31) of the manhole body 300 on which the connector 370 is mounted. An inner circumferential surface of the connector 31 is integrally coupled to the connector 370 of an elastic material to which the connector tube 350 can be fitted.

An extension 371 inlet of the connector 370 protruding outwardly of the manhole body 300 may be extended to fit the connection pipe 350 provided obliquely by the connection angle α. The connection pipe 350 is inserted into the extension part 371 through the inlet of the extended extension part 371, and then is pushed to the inner side of the connector 31.

Here, as the connection pipe 350 is fitted into the connection port 31, the upper side of the elastic portion 372 of the connector 370 is compressed, the lower side is tensioned.

The connection pipe 350 is connected to the connection port 31 when the connection pipe 350 contacts the reference pipe 341 located inside the connection port 31.

A modification of the first embodiment will be described with reference to FIG. 15 as follows. Here, FIG. 15 is sectional drawing which shows the manufacturing apparatus of the manhole for manufacturing the manhole in which the reference tube and the flow path tube were integrally formed.

The basic configuration of the manhole manufacturing apparatus according to the present modification is the same as the above-described embodiments. However, the reference pipe (refer FIG. 12, 341) part for forming the connection port 31 is integrally formed with the flow path pipe 349, as shown in FIG.

On the other hand, although not shown, in order to form the bottom surface (see Fig. 2, 34) of the invert, to combine an additional mold having an inclined surface on top of the inner mold 320, or to incline the top of the inner mold 320 Can be configured.

Referring to Fig. 16, another modification of the first embodiment will be described. Here, FIG. 16 is a partial sectional view of the manhole manufacturing apparatus using the inner and outer molds having a curved surface as another modification of the first embodiment.

The inner mold 320 and the outer mold 310 for forming the manhole of this modification are formed in a circular shape. Due to the shapes of the inner mold 320 and the outer mold 310, a gap occurs between the inner mold 320 and the outer mold 310, the connector 370, and the connector forming mold 340. To this end, an outer jig 354 is formed between the outer mold 310 and the connector (refer to FIG. 1 and 31), and an inner jig 352 is formed between the inner mold 320 and the connector forming mold 340. Is formed.

The outer jig 354 has a surface in contact with the outer mold 310 corresponding to the outer surface of the outer mold 310, and similarly the inner jig 352 is in contact with the inner mold 320. A surface is formed corresponding to the outer surface shape of the inner mold 320.

In the present modification, since the outer surfaces of the inner mold 320 and the outer mold 310 have a circular shape, the outer jig 354 and the inner jig 352 also come into contact with the connector 370. Silver plane, the opposite part has a circular shape.

The material of the outer jig 354 and the inner jig 352 may be made of iron, rubber, PVC, etc. In addition, the outer jig 354 and the inner jig 352 may be formed of a material having durability in curing.

Hereinafter, a method of assembling the connector 370 and the connector forming die 340 having the above configuration will be described.

First, the reference tube 341 of the connector forming tube 345 is first inserted inside the inner circumferential surface of the connector 370. In this case, in order to closely contact the watertight between the connector 370 and the reference tube 341, a rubber ring, a lubricant, and a tool for temporarily expanding the connector 370 may be used or the reference tube 341 may be used. The inner diameter of the connector 370 is larger than the outer diameter of the connector 370 so that the inner diameter of the connector 370 can be easily inserted, and then tightly connected using fastening means such as a band.

Next, the auxiliary pipe 342 of the connector forming tube 345 is inserted outside the inner circumferential surface of the connector 370, and is assembled by being in close contact with the reference tube 341.

Then, the connector forming jig 347 is inserted into the connector forming tube 345, and the connector (Jig) is connected through the jig piston 347c, the jig cylinder 347d and the plate 347e of the connector forming jig 347. 370 and the connection hole forming tube 345 are crimped to be firmly fixed. Here, one end of the jig cylinder 347d is coupled with the plate 347e. In addition, the jig cylinder 347d inserts the jig piston 347c into an internal space to allow the jig piston 347c to reciprocate linear motion. At this time, a thread is formed on the outer surface of the jig piston 347c to advance and retract the jig cylinder 347d by the rotation of the tightening nut 347f.

The connector 370 and the connector forming tube 345 are supported through the connector forming jig 347, and then the extension part 371 of the connector 370 is folded to fold the auxiliary tube 342. It is positioned between the extensions 371.

Subsequently, the connector fixing ring 343 of the connector forming tube 345 is pushed between the lower surface of the connector 370 and the plate 347e to prevent the nested extension 371 from being unfolded.

Here, the outer jig 354 is provided when the outer surface of the outer mold 310 is not flat, and the inner jig 352 is provided when the outer surface of the inner mold 320 is not flat.

And the assembly set as described above is prepared by the required amount of the connection pipe (350).

On the other hand, in order to fix the set on the outer mold 310, the fastening nut formed on one side of the connector forming jig 347 to match the fastening hole 316 of the outer mold 310, the fastening bolt Fix it by fastening firmly so that it does not move when placing concrete using 347b.

Hereinafter, a method of manufacturing a manhole using the manhole manufacturing apparatus will be described.

The manhole manufacturing method includes a concrete input step of injecting concrete into a mold, a manhole forming step of forming a manhole by a manhole manufacturing apparatus including a connector, and a demoulding step of separating the completed manhole from a mold before or after curing. Will go through.

Specifically, first, the concrete input step is a step of injecting the concrete produced by mixing a predetermined material into the manufacturing mold. That is, concrete is introduced into the molding space formed between the outer mold 310 and the inner mold 320. At this time, it is preferable to pour concrete while compacting concrete using a predetermined vibrator in order to inject the concrete densely.

The manhole forming step is a step of forming a manhole by the above-described manhole manufacturing apparatus.

The demolding step is a step of separating the manhole from which the molding is completed, with the inner mold 320 and the outer mold 310 before or after curing at a predetermined temperature. Here, the curing process refers to a process of curing the completed manhole by a predetermined predetermined temperature, and generally, curing concrete is to work to protect the concrete in a condition suitable for the hydration of cement for a certain period of time to harden the concrete. . Conditions suitable for curing are to maintain the proper temperature and humidity, to protect against external shock and sinking, and to maintain the same conditions throughout the curing period.

On the other hand, the manufacturing method of the manhole can be divided into two types according to the time point of the curing process, one is demoulding and demolding the inner mold 320 and the outer mold 310 after molding by vibration using a low slump of concrete formulation. It is a method of curing in the state of being, and the other is a method of producing a product by curing in a state that does not demould the mold after molding using a high slump concrete.

Separating the manhole from the inner mold 320 and the outer mold 310, first, the shaped manhole and the manhole manufacturing apparatus upside down. That is, the pallet 330 is upside down so that the pallet 330 is positioned upward. At this time, forklift or crane may be used for rotation.

Next, the outer mold 310 is dismantled, and the pallet 330 and the inner mold 320 are dismantled in the manhole. Next, demolding is completed by separating the inverting mold 360 and the splice forming mold 340 from the manhole formed in turn. At this time, the components other than the reference tube 341 is separated from the connector forming mold 340.

However, unlike the above-described demoulding sequence, the ring-shaped rebar for demoulding the product is inserted into the concrete in advance, so that the outer mold 110 is dismantled and the bolts fastened to the pallet 330 are removed without rotating the mold up and down. It is also possible to perform demoulding by lifting a cyclic rebar.

The method of connecting the connection pipe 350 to the manhole manufactured by the manufacturing apparatus as described above is as follows.

First, the connection angle is adjusted while inserting the connection pipe 350 into the extension part 371 formed to extend outwardly of the manhole, and fit into the connection port 31. Here, the connection tube 350 is inserted until the contact with the reference tube 341.

In addition, the coupling reinforcing member 380 is coupled to an outer circumferential surface of the extension part 371 formed to extend outwardly of the manhole among the reference pipes 370 to provide a coupling force between the extension part 371 and the connection pipe 350. By reinforcing, the connection of the connection pipe 350 is completed.

17 to 19, a second embodiment of a manhole according to the present invention will be described. 17 is a partial cross-sectional view showing a connection pipe connection portion of the manhole according to the second embodiment of the present invention, FIG. 18 is a partial plan view showing a connection pipe connection state of the manhole of FIG. 17, FIG. 19 is a connector of FIG. It is sectional drawing to show. In the description of the second embodiment, overlapping contents among the contents of the first embodiment will be omitted for clarity.

The manhole according to the present embodiment includes a manhole main body 400, a connector (see FIG. 1, 31), and a connector 470.

Here, the connector 470 is made of an elastic material and formed integrally with the manhole body 400 on the inner circumferential surface of the connector 31 formed in the manhole body 400 so that the connection pipe 450 is connected to the connector. When it is fitted to (31) it serves to assist.

Specifically, the connector 370 serves to guide the connection pipe 450 to be fitted into the connection port 31, and maintains the connection pipe 450 fitted to the connection port 31. Play a role together. In addition, the connector 470 may serve to prevent the leakage of fluid in the state in which the connection pipe 450 is fitted to the connection port 31.

The connector 470 includes a coupling part 473, an inclined part 472, and an extension part 471. The coupling portion 473 is a portion coupled to the inner circumferential surface of the connector 31, and a plurality of coupling protrusions 475 are formed on the outer surface thereof.

The inner diameter of the coupling portion 473 is larger than the outer diameter of the connection pipe 450. That is, when the connection pipe 450 is fitted into the coupling part 473, a predetermined gap is formed on an outer surface of the connection pipe 450 and an inner circumferential surface of the coupling part 473.

In addition, the inclined portion 472 extends from the outer end of the coupling portion 473 to the outside of the manhole body 400. The inclined portion 472 is formed integrally with the coupling portion 473 is formed with the same diameter as the coupling portion 473 but is gradually reduced in diameter as it extends outward.

In addition, the extension part 471 extends from the outer end of the inclined part 472 to the outside of the manhole body 400. The inner diameter of the extension part 471 may be formed to be the same as the outer diameter of the connection pipe 450, or may be formed so that the connection pipe 450 is more easily fitted.

When the connection pipe 450 is fitted inside the connector 470 through the extension part 471, the extension part 471 surrounds the outer circumferential surface of the connection pipe 450 and the connection pipe ( 450) can be easily connected.

In this embodiment, as shown in FIG. 17, the coupling reinforcing member 480 is coupled on the outer circumferential surface of the extension part 471 in a state where the connection pipe 450 is fitted into the connector 31. 471 and the coupling force of the connection pipe 450 may be reinforced. In this case, an extension preventing protrusion 481 may be formed in the extension part 471 to prevent the coupling reinforcing member 480 from being separated.

On the other hand, when the connection pipe 450 is fitted to the connector 470, the O-ring 490 is fitted between the gap to fill the gap formed between the coupling portion 473 and the connection pipe 450. Can be. Here, the inner band 491 may be mounted to couple the O-ring 490 to the inner side surface of the connector 31.

Here, the thickness of the O-ring 490 is preferably equal to or greater than the gap.

The connection pipe 450 is formed of an elastic material and has an extension portion 471 and an inclination portion formed outside of the manhole body 400 even though the center line is provided in a state in which the center line does not coincide with the center line of the connection port 31. 472 and a coupling portion 473 having a diameter larger than that of the connection pipe 450 may be easily fitted to the connection port 31. That is, the connector 470 provided with the connection angle of various sizes by the connector 470 of the present invention can be fitted into the connector 31.

Referring to FIGS. 20 and 21, a manufacturing apparatus for manufacturing the manhole described above is as follows. 20 is a perspective view illustrating a manhole manufacturing apparatus for manufacturing the manhole of FIG. 17, and FIG. 21 is a cross-sectional view taken along the line II-II of FIG. 20.

The apparatus for manufacturing a manhole according to the present embodiment basically includes an outer mold 410, an inner mold 420, a pallet 430, a connector forming mold 440, and an invert forming mold 460.

Here, the connection hole forming mold 440 is formed integrally with the manhole on the outside, and assists to stably fit the connection pipe 450 provided to the connection hole 31 at various connection angles to the connection hole 31 stably. The connector 470 is provided.

The connector forming mold 440 includes a connector forming tube 445 provided on the inner circumferential surface of the connector 470 and a connector forming jig 447 supporting the connector.

In addition, the connector forming pipe 445 is preferably configured to include a reference tube 441, the auxiliary pipe 442 and the connector fixing ring 443 made of a separate member.

The reference tube 441, the auxiliary tube 442, and the connector fixing ring 443 are all provided on the inner circumferential surface of the connector 470.

In detail, the reference tube 441 is positioned to contact one end of the connection tube 450. The reference tube 441 is a tube to be removed after manufacturing the manhole, the inner diameter of the connection pipe 450 has an outer diameter dimension, the outer surface is in close contact with the connector 470 structure and diameter that can be maintained watertight Has It is preferable that the thickness of the reference tube 441 is about 1/2 of the width of the connection port 31.

When the auxiliary pipe 442 folds the extension portion 471 and the inclined portion 472 of the connector 470 to the coupling portion 473 side of the connector 470, the inclined portion 472 and the coupling portion Sandwiched between 473. Here, the connector 370 may be formed of an elastic material, and the extension part 371 may be disposed in a state of being folded into the connection hole forming tube 445.

The auxiliary pipe 442 is a tube that is removed after the manufacture of the manhole is completed, it is possible to secure a space in which one end of the connection pipe 450 is disposed, and is filled in the manhole manufacturing by assisting the connector 470 It can play a role of supporting the load of concrete. The length of the auxiliary pipe 442 may be determined in consideration of the thickness generated by folding the extension part 471 from the length of the connection port 31 minus the length of the reference pipe 441. In addition, the thickness of the auxiliary pipe 442 is preferably formed so thin that the extension portion 471 and the inclined portion 472 can be easily folded to the coupling portion 473 side after the manhole production.

In addition, the connector fixing ring 443 is positioned inside the coupling part 473 so that the extension part 471 and the inclined part 472 are not unfolded in the folded state. The connector fixing ring 443 may use a well bent corrugated pipe.

The method of assembling the connector 470, the connector forming mold 440 of the second embodiment, and the method of manufacturing the manhole using the manhole manufacturing apparatus are the same as in the first embodiment. However, in the demolding step of the manufacturing method of the manhole, in the first embodiment, the reference tube is integrally formed with the manhole body and is not removed, whereas in the second embodiment, the reference tube is removed in the same manner as the components of the other connector forming mold. .

Hereinafter, a method of connecting the connection pipe 450 to the manhole will be described.

First, the connector 470 couples the O-ring 490 into the connector 31 mounted on the inner circumferential surface thereof. Here, the inner band 491 may be disposed in advance at a portion where the o-ring 490 is disposed in order to easily combine the o-ring 490.

The inner diameter of the O-ring 490 is preferably formed to be equal to or greater than the outer diameter of the connection pipe 450.

Next, the connection pipe 450 is inserted into the connector 470 to be in close contact with the manhole body 400.

Next, the connection angle of the connection pipe 450 is adjusted.

Next, the connecting reinforcing member 480 is coupled to the extension part 471 of the connector 470 protruding outward from the manhole body 400 in a state where the connection angle of the connection pipe 450 is adjusted. Complete the connection of pipe (450).

Referring to Fig. 22, the connection state of the connection pipe fitted at an angle with respect to the connection port is as follows. Here, FIG. 22 is an operation diagram shown to explain a scene in which the connecting pipe is obliquely coupled to the connecting port in the second embodiment.

As shown in the drawing, the connection pipe 450 may be provided at an angle by the connection angle β to the connection port (see FIG. 1 and 31) of the manhole body 400 on which the connector 470 is mounted. The connector 31 is coupled to the connector 31 made of an elastic material to stably fit the connector 31.

In order to fit the connection pipe 450 provided at an angle to the connection angle β, the inlet of the extension part 471 of the connector 470 is extended, and the connection pipe 450 is fitted to the extension part 471. After continuing to push into the inside of the connector 470. The connection pipe 450 is inserted into the extension part 471 and then pushed to the inner side of the connection port 31 through the inclined part 472 and the coupling part 473 of the connector 470. An O-ring 490 may be disposed in contact with the outer surface of the connection pipe 450 to fix the connection pipe 450 so as not to shake.

Next, referring to Figures 23 to 27, a third embodiment of the manhole according to the present invention will be described. 23 is a partial cross-sectional view showing a connection pipe connection state of the manhole according to the present embodiment, FIG. 24 is a partial plan view showing a connection state of the manhole connection pipe of FIG. 23, and FIG. 25 shows a connector 570 of FIG. 23. FIG. 26 is an operation view for explaining a scene in which the connection pipe 550 is obliquely coupled to the connection port 31 in FIG. 23, and FIG. 27 is an exploded cross-sectional view showing the manufacturing form of FIG. 25.

The manhole 30 according to the present embodiment also includes a manhole body 500, a connector 31, and a connector 570 similarly to the first and second embodiments described above.

Here, the connector 570 is made of an elastic material, and is formed integrally with the manhole body 500 on the inner circumferential surface of the connection hole 31 formed in the manhole body 500 so that the connection pipe 550 is the connection hole. When it is fitted to (31) it serves to assist.

On the other hand, the connector 570, together with the coupling portion 573 and the extension portion 571, has a wrinkle portion 576 connecting the coupling portion 573 and the extension portion 571.

The wrinkle part 576 is formed in a wrinkled shape as shown in FIG. 23 to connect the coupling part 573 and the extension part 571 so as to change the angle.

Although the angle of the connection pipe 550 can be adjusted through the above-described embodiments, there is a limit to the length of the connector 570 that extends in a state where the coupling reinforcing member 580 is coupled, so that the connection pipe 550 is above a certain angle. Difficulty adjusting may occur.

In this embodiment, by providing the pleats 576 in the portion extending during the angle adjustment, the angle can be smoothly adjusted without applying excessive force to the connector 570 even when the coupling reinforcing member 580 is firmly coupled.

On the other hand, in the present embodiment, the wrinkle portion 576 is configured to include a first wrinkle portion 577 and the second wrinkle portion 578.

The first wrinkle part 577 connects one side of the coupling part 573 and the extension part 571 along the longitudinal direction of the connection pipe 550, and the connection pipe 550 is fitted therein. You lose. The second wrinkle portion 578 is disposed in a direction crossing the first wrinkle portion 577, and connects the outer end portion of the coupling portion 573 to the extension portion 571.

In particular, in the present exemplary embodiment, as illustrated in FIGS. 23 and 26, the first and second wrinkles 577 and 578 are disposed perpendicular to each other.

As such, in the present exemplary embodiment, since the first wrinkle part 577 and the second wrinkle part 578 are provided, the first wrinkle part 577 may be easily extended in the longitudinal direction by the first wrinkle part 577, and the second wrinkle part ( The outer surface of the manhole body 500 can also be easily stretched through 578.

In addition, in the present embodiment, the width of the first wrinkle portion 577 is configured to increase gradually toward the outside of the “connection port 31”. As shown in FIG. 26, the outer boundary has a triangular shape. However, the specific shape of the wrinkles 576 may be variously modified depending on the use conditions or manufacturing conditions.

On the other hand, the connector 570, the coupling portion 573, the extension portion 571 and the pleat portion 576 may be formed integrally with each other, but for the convenience of fabrication by making two or more members separately and mutually bonded Can be configured in such a way.

FIG. 27 illustrates an example of bonding two or more members as described above. The first member 570B including a part 573b of the coupling part and the second wrinkle part 578 may include the coupling part. The second member 570A including the other part 573a and the extension part 571 is manufactured separately and bonded to each other.

As such, in order to bond two or more members, various known adhesives, such as an instant strong adhesive, may be used at the portion to be bonded.

In the present embodiment, similarly to the above-described embodiments, the coupling part 573 includes a coupling protrusion 575 embedded in the manhole body 500 to increase the coupling force with the inner side surface of the connector 31. Is formed. Here, the specific shape of the coupling protrusion 575 may be variously modified.

And, in the present embodiment, as shown in Figure 23, the extension portion 571 is formed in the form to prevent the separation preventing projections (581) for preventing the separation of the coupling reinforcing member 480 is formed. In addition, in this embodiment, the reference tube 541 is provided to be in contact with one end of the connection pipe 550 and removed or left after the manhole is manufactured.

Since the method of assembling the connector 570 and the method of manufacturing the manhole using the manhole manufacturing apparatus according to the present embodiment are similar to those of the first and second embodiments, detailed descriptions thereof will be omitted.

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

1 is an exploded perspective view showing a general manhole;

2 is a longitudinal sectional view showing a state in which the manhole of FIG. 1 is coupled;

3 is a cross-sectional view sequentially illustrating a process of connecting a connection pipe in one embodiment of a conventional manhole;

4 is a perspective view illustrating a state in which a connection pipe is connected to the manhole of FIG. 3;

5 is an exploded perspective view of a connection pipe connection in another embodiment of the conventional manhole;

6 is a perspective view of the combination of FIG.

7 is a cross-sectional view of FIG. 6;

8 is a partial cross-sectional view showing a connection pipe connection state of the manhole according to the first embodiment of the present invention;

9 is a partial plan view showing a connection pipe connection state of the manhole of FIG. 8;

FIG. 10 is a sectional view of the connector of FIG. 8; FIG.

FIG. 11 is a perspective view showing an apparatus for manufacturing a manhole for manufacturing the manhole of FIG. 8; FIG.

12 is a cross-sectional view taken along the line II of FIG. 11;

FIG. 13 is a plan view showing the connector for forming the connector of FIG. 11; FIG.

14 is an operation diagram shown to explain a scene in which the connecting pipe is obliquely coupled to the connecting port in the first embodiment;

FIG. 15 is a cross-sectional view showing a manhole manufacturing apparatus for manufacturing a manhole in which a reference tube and a flow channel are integrally formed as a modification of the first embodiment; FIG.

FIG. 16 is a partial cross-sectional view showing a manhole manufacturing apparatus using an inner and outer mold having a curved surface as another modification of the first embodiment; FIG.

17 is a partial cross-sectional view showing a connection pipe connecting portion of the manhole according to the second embodiment of the present invention;

FIG. 18 is a partial plan view illustrating a connection pipe connection state of the manhole of FIG. 17; FIG.

FIG. 19 is a sectional view of the connector of FIG. 17; FIG.

20 is a perspective view showing a manhole manufacturing apparatus for manufacturing the manhole of FIG.

21 is a cross-sectional view taken along the line II-II of FIG. 20;

FIG. 22 is an operation diagram shown to explain a scene in which a connecting pipe is obliquely coupled to a connecting port in a second embodiment; FIG.

Fig. 23 is a partial sectional view showing a connection pipe connection state of the manhole in the third embodiment;

24 is a partial plan view showing a connection state of the manhole connector shown in FIG. 23;

25 is a sectional view of the connector of FIG. 23;

FIG. 26 is an operation diagram illustrating a scene in which a connecting pipe is obliquely coupled to the connecting port in FIG. 23; FIG.

FIG. 27 is an exploded cross-sectional view illustrating a manufacturing form of FIG. 25.

<Explanation of symbols for the main parts of the drawings>

10: top plate manhole 11: manhole cover receiving portion

20: vertical sphere manhole 23: spigot

25: socket 30: lower sphere manhole

31: connection 33: spigot

32: Invert 34: Bottom

36: pipe line 41, 42: sealing member

51, 52: fastening nut 53, 54: feed bolt

340: manhole body 310: outer mold

311, 312: mold frame 315: connecting means

316: fastening hole 319: filling member

320: inner mold 330: pallet

336: fastening member 340: connection port forming mold

341: reference tube 343: connector retaining ring

345: connection hole forming pipe 347: connection hole forming jig

347b: fastening member 350: connection pipe

360: invert forming mold 361: bottom forming mold

370: connector 371: extension

372: elastic portion 373: coupling portion

375: engaging projection

Claims (25)

A manhole body having a predetermined internal space; A connection hole formed in a hole shape penetrating to one side of the manhole body; And A connector coupled to the inner circumferential surface of the connector and an extension part extending from the coupling part to the outside of the connector and fitted with a predetermined connection tube, wherein the extension part can change an angle with respect to the coupling part; Manholes that are configured to include. The method of claim 1, The connector is a manhole characterized by a feature formed of a stretchable material. The method of claim 1, The coupling part is characterized by the fact that the coupling protrusions embedded in the body of the manhole are formed to protrude from the inner side of the connection port. The method of claim 1, A manhole coupled to the outer circumferential surface of the extension portion and further including a coupling reinforcing member that reinforces the coupling force of the extension portion and the connection tube while the connection tube is fitted into the extension portion. The method of claim 1, The manhole is characterized by the fact that a groove-shaped invert is formed in the lower portion of the inner space of the manhole body in which a fluid can flow. A manhole body having a predetermined internal space; A connection hole formed in a hole shape penetrating to one side of the manhole body; And The coupling portion coupled to the inner circumferential surface of the connector and the coupling portion at one side of the coupling portion have a constant angle with the coupling portion and extend outwardly of the coupling portion to have an extension portion into which a predetermined connection tube is fitted, and the extension portion is opposed to the coupling portion. A connector capable of changing the angle within the above constant angle range; Manholes that are configured to include. The method of claim 6, The connector is, A manhole characterized in that the coupling part and the extension part are provided so as to further include an elastic part that provides elastic force when the extension part changes an angle with respect to the coupling part. The method of claim 6, A manhole characterized by the fact that a reference tube in the form of a ring is formed on the inner peripheral surface of the coupling portion. A manhole body having a predetermined internal space; A connection hole formed in a hole shape penetrating at one side of the manhole body; And A coupling portion coupled to the inner circumferential surface of the connection port and an inclined portion extending outwardly from the coupling portion, the inclined portion being inclined while being reduced in diameter and extending from an outer end of the inclined portion to have a predetermined extension portion into which a predetermined tube is fitted; The part and the extension part include: a connector capable of changing an angle with respect to the coupling part; Manholes that are configured to include. A manhole body having a predetermined internal space; A connection hole formed in a hole shape penetrating at one side of the manhole body; And The coupling part is coupled to the inner peripheral surface of the connection port, the extension portion is formed from one side of the coupling portion to the outer side of the connection port and formed into an extension portion and a corrugated shape to which a predetermined connection tube is fitted. A connector having a crimp portion; Manhole configured including. The method of claim 10, The wrinkle part, A first pleating portion connecting one side of the coupling part and the extension part along a length direction of the connection pipe, the connection pipe being fitted inside; And A second wrinkle portion disposed in a direction crossing the first wrinkle portion to connect an outer end portion of the coupling portion to the extension portion; Manholes comprising a. The method of claim 11, And the first and second wrinkles are arranged perpendicular to each other. The method of claim 10, A width of the first pleats is characterized in that the manhole is gradually increased toward the outer side of the connection opening. The method of claim 10, The connector, A manhole, characterized in that the two or more members produced separately are bonded to each other. The method of claim 10, A part of the coupling part and the second wrinkle part is manufactured separately and the manhole characterized in that bonded to the connector. The concrete is in the manhole manufacturing equipment, where the concrete is injected and forms the manhole. An outer mold forming a outer surface of the manhole; An inner mold forming a inner surface of the manhole; A splice forming mold for combining at least one of the outer mold and the inner mold to form a splice of the manhole; and The coupling part is provided on the outer side of the mold forming mold, the coupling part is coupled to the manhole to be molded, and the extension part is formed from the coupling part to the outside of the connector, and the extension part is inserted into the predetermined connection tube, the extension part is opposed to the coupling part. Connector with adjustable angles; Manhole Manufacture Equipment The method of claim 16, A manhole manufacturing apparatus characterized by further comprising a reference ring of a ring-shaped reference tube in contact with an inner circumferential surface of the connector. The method of claim 16, The connecting tube forming mold, A splice forming tube provided on the inner circumferential surface of the connector; A splice forming jig supporting the splice forming pipe; Manhole manufacturing device, characterized in that it comprises a. The method of claim 18, The jig forming hole is formed in a flat plate shape is provided in contact with the inner peripheral surface of the reference tube is a manhole manufacturing apparatus characterized in that it comprises a plate for supporting the reference tube. The method of claim 18, The jig for forming the jig, Jig shaft; A jig cylinder formed toward the plate about the jig axis and having an internal space; And A jig piston inserted into an inner space of the jig cylinder to move the jig cylinder forward and backward by a tightening nut; Manhole manufacturing apparatus comprising a. The method of claim 20, The plate, the jig cylinder and the jig piston is formed of a plurality of, the manhole manufacturing apparatus characterized in that it is arranged at the same angle at the center of the jig axis to be arranged as a feature. The method of claim 16, The manhole manufacturing apparatus further comprises an auxiliary pipe for securing a space in which one end of the connection pipe is disposed. The method of claim 16, The upper portion of the inner mold is a manhole manufacturing apparatus further comprises an inverter-forming mold is formed in a semi-cylinder to smooth the flow of fluid flowing through the manhole, and to form an invert for preventing the deposition of dirt. A concrete input step of injecting concrete generated by mixing predetermined materials into a space formed by the inner mold and the outer mold; An outer mold forming an outer surface of the manhole, an inner mold forming an inner surface of the manhole, and a hole-shaped connecting hole formed between the outer mold and the inner mold to penetrate the manhole, and connecting in the form of a pipe A manhole forming step of forming a manhole by a manhole manufacturing apparatus including a connector capable of coupling a tube at various connection angles; And A demolding step of separating the molded manhole from the inner mold and the outer mold before or after curing at a predetermined temperature; Manhole manufacturing method comprising a. The method of claim 24, The material of the inner mold and the outer mold is a manufacturing method of the manhole, characterized in that made of one of iron, rubber and PVC.

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