KR20140089758A - Manufacturing Equipment for a Manhole Block, Assembling Method for the Same Equipment, Manufacturing Method for a Manhole Block, and Manhole Block Using the Same Method - Google Patents

Abstract

An apparatus for manufacturing a manhole block according to the present invention is an apparatus for manufacturing a manhole block capable of forming a manhole by the insertion of concrete. The apparatus includes: a base comprising the floor of the apparatus while forming one side of the exterior of a manhole block; an external mold prepared on top of the base to form the rest of the exterior sides of the manhole block; an internal mold prepared on top of the base to form the interior of the manhole block; more than one mold for forming a connection portion, prepared on top of the base to form a connection portion for the mutual connections between manhole blocks; and a fixating bar formed longer in the length direction to fixate the mold for forming a connection portion while having at least one portion protruded toward the outside of the external mold. The internal mold is capable of changing a relative position of the mold for forming a connection portion about the internal mold.

Description

Technical Field [0001] The present invention relates to a manhole block manufacturing apparatus, a manhole block manufacturing apparatus, a manhole block manufacturing method, a manhole block manufacturing method,

The present invention relates to an apparatus for manufacturing a manhole block, a method for assembling the manhole block, a method for manufacturing the manhole block, and a manhole block manufactured thereby, and more particularly to an apparatus for manufacturing a manhole block having improved structure and improved quality and productivity A method for manufacturing a manhole block, and a manhole block manufactured thereby.

Sewage pipe construction is required to treat sewage, sewage and wastewater in various civil engineering works, construction work and road construction. The manhole block is installed in the middle of the sewer pipe for the purpose of inspection, cleaning, ventilation, ventilation, joining, branching,

Generally used manhole manufacturing methods are largely classified into a field installation method and a method using a prefabricated manhole block.

In the field installation method, which is widely used at present, a mold is installed in a place where an actual manhole block is installed, a reinforcing bar is assembled, a predetermined material is mixed, and the generated concrete is placed in the mold, The manhole block is manufactured.

However, the above-mentioned field installation method has many problems. First, the manufactured manhole block is difficult to cut off the leakage completely because the connecting portion connected to the inlet pipe and the outlet pipe is not precisely installed, and the height of the manhole block is difficult to adjust because the formwork is installed in the field. In addition, the curing period of the poured concrete is required, and the construction period is prolonged. As a result, traffic congestion occurs and thus civil complication is increased. And the cost of construction is relatively increased.

As an alternative to the site installation method, which has many problems as described above, a method of combining with a conventional manhole block has been proposed, and a national standard (KS F 4012: concrete manhole block for sewerage) Has repeatedly been reached to the present.

Referring to FIGS. 1 and 2, the construction of a conventional installed manhole block will be described.

1, the constructed manhole block 1 includes a lower concrete manhole block 30 having a connection port 31 through which an inlet pipe and an outflow pipe can be connected, And a top plate manhole block 10 provided at an upper portion of the vertical concrete manhole block 20 and having an inspection port 11 into which a manhole cover is inserted, . Sealing members (41, 42) for blocking leakage are fitted to the portions where the respective manhole blocks are assembled.

Sockets 15 and 25, which are portions corresponding to the spigots 23 and 33, which are portions of the manhole blocks 1 when the manhole blocks are coupled to each other, Respectively. First, a spigot 33 is formed on the upper part of the lower concrete manhole block, and a socket 15 is formed on the lower part of the upper plate manhole block 10. In the vertical concrete manhole block 20, a spigot 23 is formed at an upper portion and a socket 25 is formed at a lower portion.

Each of the manhole blocks can be smoothly engaged by the spigots 23, 33 and the sockets 15, 25, and can withstand an external force in the lateral direction.

Although not shown, an inclined concrete manhole block may be further provided between the vertical concrete manhole block 20 and the top plate manhole block 10 so as to narrow the upper pipe diameter and to sufficiently withstand the load of the road surface.

And a conveying bolt 52 for conveying the formed manhole block is fastened to the fastening nut 51 provided on the outer surface of the manhole block.

1 and 2 illustrate a manner in which the conveying bolt 52 is fastened to the vertical concrete manhole block 20.

On the other hand, the lower concrete manhole block 30 is provided with a plurality of connection ports 31 for connecting an inflow pipe or an outflow pipe.

In addition, an inverter 37 may be provided in the inner lower portion of the lower concrete manhole block 30 as needed. The inverter 37 smoothly flows sewage in the manhole block and prevents the deposit of dirt . The inverter 37 is mainly provided in a manhole block for the treatment of wastewater.

A typical manufacturing apparatus of the lower concrete manhole block of the above-described constructed manhole block is composed of an outer mold with a bottom and an inner mold installed at a position raised by the bottom thickness of the lower sphere in the outer mold. And a predetermined fixing device is provided for positioning the inner mold to be elevated by a predetermined height in the outer mold.

A method of manufacturing a lower concrete manhole block through such a manufacturing apparatus will be described using a wet concrete as an example.

Here, wet concrete refers to concrete in which the slump value, which is the value for measuring the degree of the concrete dough, is not "0".

First, the concrete produced by mixing predetermined materials in the molding space formed between the outer mold and the inner mold is charged by the bottom thickness of the lower concrete manhole block, the concrete is firstly cured, and then the outer wall of the lower concrete manhole block is formed Concrete is put into the space again and curing is done again.

Here, the curing is a process of curing the formed manhole block by a predetermined method, and by the curing process, the concrete is protected under a condition suitable for hydration of the cement for a certain period of time, so that the concrete is cured.

After the curing is completed, the inner mold and the outer mold are demolded, the fixing position set on the floor is removed, the fixing device is removed, and the remaining space is filled with concrete to complete the manhole block.

However, the above-described conventional manhole block manufacturing method and the manhole block by this method have the following problems.

First, there is a problem in that manufacturing cost is increased because a separate manufacturing device for each of the upper manhole block, the vertical concrete manhole block, and the lower concrete manhole block is required.

Second, the bottom surface and the wall of the lower concrete manhole block can not be manufactured at one time, and the manufacturing time is long. When the bottom wall and the wall of the lower concrete manhole block are simultaneously manufactured by injecting the concrete at once, there is a problem that the inner mold is raised by buoyancy of the hardened concrete.

Third, since the height of the outer mold or the inner mold must be changed according to the height of the lower concrete manhole block to be manufactured, a mold of a full set must be separately prepared according to the standard.

Fourth, there is a problem in that it is impossible to form an inverter which must be installed in a manhole block for treating wastewater in order to smooth the flow of sewage and prevent the deposition of dirt. Therefore, it is troublesome to install a separate inverter at the construction site.

Fifth, it has not been easy to form a fastening nut, a connection port, or the like for fastening a spigot or a transfer bolt, which must be necessarily formed in a manhole block, with a conventional manhole block manufacturing apparatus.

Sixth, when using a method of inserting a connecting member into a manhole block to couple the manhole blocks together, a connecting member fastening hole to be fastened to the connecting member is formed on an upper portion of the lower concrete manhole block. However, Even if it is possible to install it, precise placement is difficult.

However, in order to fix the mold for forming a connection portion used in the manhole block manufacturing apparatus, it is necessary to form a plurality of fastening holes in the mold for forming the connecting portion and the mold. Further, in the case of manufacturing a manhole block having a circular section, there is a problem that it is not easy to fix the mold for forming the connecting portion.

Therefore, a method for solving the above problems is required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a manhole block manufacturing apparatus, a manhole block manufacturing method, a manhole block manufacturing method, and a manhole block manufacturing method therefor, which can solve the above- Block.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

A manhole block manufacturing apparatus for forming a manhole block by injecting concrete into a manhole block manufacturing apparatus for solving the above-described process comprises a base forming a bottom surface of the manufacturing apparatus, forming a side surface outside the manhole block, An outer mold provided on the upper side of the base and forming a remaining surface outside the manhole block, an inner mold provided on the upper side of the base, forming an inner portion of the manhole block, And at least a part of the fixing bar protruding outwardly from the outer mold, wherein the fixing bar is formed to be longer in the longitudinal direction and fixed to the mold for forming the connecting portion, Is configured to change the relative position of the mold for forming the connecting portion with respect to the inner mold All.

The fixing bar may be formed such that a plurality of members are selectively engageable in the longitudinal direction.

Further, the fixing bar may be formed so that a plurality of members slidable relative to each other are coupled to adjust the length.

At least one of the base and the outer mold may have a fixture for fixing the fixation bar.

In addition, one or more connecting grooves for connecting the fixing bars may be formed in the connecting portion forming mold along the circumference of the connecting portion forming mold.

At least one of the outer mold and the inner mold may be formed by coupling a plurality of mold frames by a predetermined connecting means.

Further, the inner mold may be arranged to penetrate through the mold for forming the connecting portion.

And a mold for forming an inverter coupled to the inner mold to form an inverter for facilitating the flow of sewage and preventing the deposition of dirt inside the manhole block.

The at least one connection port forming mold may be further coupled to at least one of the base, the outer mold, and the inner mold to form a connection port of the manhole block.

And a fastening nut coupled to at least one of the base and the outer mold to fasten a bolt capable of transferring the formed manhole block, the fastening nut being embedded in a manhole block to be molded, As shown in FIG.

The apparatus may further include an inspection hole forming mold coupled to at least one of the outer mold and the inner mold to form an inspection hole of the manhole block.

And an insert hole mold provided in the space formed by the outer mold and the inner mold to form an insert hole for inserting a connecting member interconnecting the manhole blocks into the manhole block.

Further, the insert hole mold may include a coupling member fastening nut for fastening the coupling member to the formed manhole block.

A method of assembling a manhole block manufacturing apparatus for solving the above-mentioned process comprises assembling an outer mold forming a manhole block outer side wall on a base forming a bottom wall of the manufacturing apparatus and forming a side wall outside the manhole block The method comprising the steps of: engaging a mold for forming at least one connection portion for forming a connection portion for interconnecting the manhole block on the base, a fixing bar formed to be long in the longitudinal direction and at least partially protruding outside the outer mold, And connecting the inner mold for forming the inner side wall of the manhole block to the mold for forming the connecting portion on the upper portion of the base.

Also, a method of manufacturing a manhole block for solving the above-mentioned process comprises a concrete charging step of charging concrete produced by mixing predetermined materials into a space formed by an inner mold and an outer mold, An outer mold provided on the upper side of the base and forming a remaining sidewall outside the manhole block, an inner mold provided on the upper side of the base and forming an inner sidewall of the manhole block, A manhole block forming step of forming a manhole block by a manhole block manufacturing apparatus including a fixing bar which is elongated in the longitudinal direction to fix the mold for forming the connecting portion and at least part of which protrudes outside the outer mold, A curing step of curing the block to a predetermined strength and a curing step of curing the manhole block And a demolding step of separating from the hole-blocking production apparatus.

The manhole block manufacturing apparatus of the present invention, the assembling method thereof, the manhole block manufacturing method and the manhole block manufactured thereby have the following effects.

First, various types of manhole blocks can be manufactured by one manufacturing apparatus by appropriately combining the base, the outer mold, and the inner mold, thereby reducing the manufacturing cost. In addition, it is possible to manufacture an upper concrete manhole block in which a top plate manhole block and a vertical concrete manhole block are integrated, thereby reducing the number of connection portions, thereby improving workability and reducing construction costs.

Second, since the bottom surface and the wall of the lower concrete manhole block can be manufactured at once, the manufacturing time is reduced and the productivity is improved.

Third, since the mold for forming the connecting portion can be fixed by a simple method, it is possible to prevent the apparatus from being complicated, thereby shortening the construction time and improving the precision of the work.

Fourth, there is an advantage that the mold for forming the connecting portion can be fixed without limitation to various shapes of the manhole block.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is an exploded perspective view showing a general manhole block;
FIG. 2 is a sectional view showing a state in which the manhole block of FIG. 1 is engaged; FIG.
3 is a cross-sectional view illustrating a state in which a manhole block according to the present invention is coupled;
4 is a cross-sectional view showing a modification of the manhole block according to the present invention;
5 is an exploded perspective view showing an embodiment of a manhole block manufacturing apparatus according to the present invention;
FIG. 6 is an assembled perspective view of FIG. 5; FIG.
7 is a cross-sectional view showing a state where a fixing bar is coupled to a mold for forming a connection portion;
FIG. 8 is an enlarged sectional view showing a state in which a connecting bar forming mold and a fixing bar are combined; FIG.
9 is a sectional view showing a state in which a connecting member fastening nut is fastened using a bolt;
10 is a cross-sectional view showing a coupled state of the manhole block manufacturing apparatus when the lower concrete manhole block is formed;
11 is a cross-sectional view showing a coupled state of a manhole block manufacturing apparatus when a vertical concrete manhole block is formed;
12 is a cross-sectional view showing a coupled state of the manhole block manufacturing apparatus when forming a top plate manhole block; And
13 is a cross-sectional view showing a coupled state of the manhole block manufacturing apparatus when the upper concrete manhole block is formed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

Referring to FIGS. 3 and 4, a method for assembling the manhole block assembly and the manhole block assembly according to the present invention will be described as follows.

FIG. 3 is a vertical sectional view showing a state in which the manhole block according to the present invention is coupled, and FIG. 4 is a longitudinal sectional view showing a modification of the manhole block according to the present invention.

As shown in FIG. 3, the manhole block assembly according to the present embodiment includes a top plate manhole block 110, a vertical concrete manhole block 120, and a lower concrete manhole block 130 as in the prior art.

In the present embodiment, the connecting members 161 are inserted into the insert holes 151, 153 and 155 formed in the respective manhole blocks 110, 120 and 130 so that the manhole blocks are coupled to each other. However, if necessary, the insert holes may be omitted It is possible. The connecting member 161 is inserted into the insert holes 151, 153 and 155 formed in the manhole blocks, and a plurality of the connecting members 161 are disposed in the circumferential direction for the purpose of enhancing the binding force of the manhole blocks.

It is preferable that the connecting member 161 is made of a material having a high tensile strength because the connecting member 161 is to couple the manhole blocks and prevent the mutual movement of the manhole blocks. For example, it may be made of a material such as a reinforcing bar having a high tensile strength.

It is more preferable that the cross section of the connecting member 161 is circular so that the insert holes 151, 153 and 155 into which the connecting member 161 is inserted can be easily formed. In the present embodiment, the connecting member 161 is formed in a rod shape having a circular section.

The insert holes 151, 153, and 155 are formed by forming a cylindrical space into which the connecting member 161 can be inserted. The top plate manhole block 110 and the insert holes 151 and 153 of the vertical concrete manhole block 120 may be formed by separating and removing a metal mold for forming the insert hole from the manhole block, By embedding the pipes extending in the axial direction into the manhole block and integrating them.

The coupling of the manhole blocks by the connecting member 161 may take various forms. In this embodiment, a thread is formed in the lower portion of the connecting member 161, and the insert hole of the lower sphere manhole block 130 is formed with a fastening nut 155 buried in the upper portion thereof, However, it is also possible to integrate the connecting member and the manhole block by injecting filler such as cement mortar into the remaining space of the insert hole after the connecting member is installed.

The upper portion of the connecting member 161 is threaded so that the upper portion of the connecting member 161 passing through the upper plate manhole block 110 is screwed by the nut 163 to couple the manhole blocks together. The tightening amount of the nut 163 can be adjusted to adjust the binding force between the manhole blocks.

By coupling the manhole blocks through the connecting member 161, the manhole block assembly is stronger against the external twisting force than the manhole block assembly by the conventional joining method, and can cope with the external force sufficiently. Further, when the tension is relieved after being buried in the ground, it is easy to add the tension by further tightening the nut 163 located above the top plate manhole block 10.

Meanwhile, the manhole block assembly according to the present embodiment also preferably includes a connection port (not shown) and an inverter 137 as in the conventional art. The connection port allows the inlet pipe and the outlet pipe to be connected to each other. The inverter 137 smoothes the flow of sewage in the manhole block and prevents deposition of dirt.

In each of the manhole blocks, spigots 123, 133 or sockets 115, 125 are formed to allow the manhole blocks to smoothly engage and effectively withstand lateral external forces.

The spigots 123 and 133 and the sockets 115 and 125 have a shape corresponding to each other. In this embodiment, the spigots 123 and 133 are protruded downward, and the sockets 115 and 125 protrude upward. . However, the shapes of the spigots 123 and 133 and the sockets 115 and 125 are not limited thereto, but can be modified into various shapes.

Sealing members (141, 142) for blocking leakage are fitted to the portions where the respective manhole blocks are assembled.

On the other hand, a check hole 111 through which the manhole cover is inserted is formed at the center of the top plate manhole block.

FIG. 4 is a modification of the manhole block assembly shown in FIG. 3, which includes an upper concrete manhole block 210 and a lower concrete manhole block 130.

That is, the upper plate manhole block 110 and the vertical concrete manhole block 120 in FIG. 3 are integrally combined to constitute the upper concrete manhole block 210.

In the central part of the upper concrete manhole block 210, a check hole 211 into which a manhole cover is inserted is formed.

In this modified example, the top plate manhole block and the vertical concrete manhole block are integrated and integrated with the upper concrete manhole block 210, thereby reducing the number of joints between the manhole blocks, thereby improving the workability and reducing the construction cost.

3, the connecting member 261 is inserted into the insert holes 251 and 155 formed in the manhole blocks 210 and 230, so that the manhole blocks are coupled to each other. A nut 263 is screwed on an upper portion of the lower case 261. [

5 and 6, a basic configuration of a manhole block manufacturing apparatus according to the present invention will be described.

5 and 6 are an exploded perspective view and an assembled perspective view illustrating a manhole block manufacturing apparatus, and show a manufacturing apparatus coupling structure in the case of molding a manhole block, particularly a lower concrete manhole block 130. FIG.

The manhole block manufacturing apparatus according to the present invention comprises a base 300, an outer mold 310 provided on the upper side of the base 300, an inner mold 500, and a mold 610 for forming a connection portion .

The base 300 forms a bottom surface of the manufacturing apparatus and serves as a reference mold to which other components are coupled, and forms a side surface outside the manhole block.

The shape of the base 300 is determined corresponding to the shape of the manhole block to be molded.

The cross-section of the manhole block can have various cross-sectional shapes such as a hollow circle, an ellipse, a rectangle, a rectangle with four corners, and a rectangle with a square groove at four corners.

Accordingly, the shape of the base 300 corresponds to a part of a circle, a part of an ellipse, a flat plate, a part of a specific shape of a rectangle, or the like. The present embodiment illustrates that the base 300 has a semi-circular cross-section in correspondence to the case of manufacturing a manhole block having a circular section.

The front end and both side portions of the base 300 may be arranged at predetermined intervals so that the outer mold 310 and the lower outer frame 410 of the manhole block can be coupled to each other.

In the present embodiment, the molds of the manufacturing apparatus are fastened by bolts. However, the molds are not limited to each other and may be formed in various ways.

In this embodiment, since the manhole block having a circular cross section is manufactured, the base 300 and the outer mold 310 are each formed to have a semicircular cross-section to form a molding space therein, When a manhole block having a shape is formed, three or more members may be combined to form a molding space.

For example, in the case of manufacturing a manhole block having a square cross section, the base 300 and the outer mold 310 may be formed as flat plates, and one or more side plates connected to each other perpendicularly thereto may be constructed.

On the other hand, reinforcing ribs are formed on the back surface of the base 300 and the outer mold 310 to improve the strength of the base 300. In this embodiment, as shown in FIG. 5, at least one horizontal reinforcing rib and a vertical reinforcing rib formed in the horizontal and vertical directions on the back surface of the base 300 and the outer mold 310 are perpendicularly intersected with each other.

Since the reinforcement ribs are provided on the back surface of the base 300 and the outer mold 310 as described above, the strength of the base 300 and the outer mold 310 is improved, and even if the concrete is introduced into the inner side, So that the base 300 or the outer mold 310 is not bent or deformed.

The outer mold 310 is provided on the upper side of the base 300 and forms a remaining surface other than a side surface outside the manhole block formed by the base 300.

The shape of the outer mold 310 is determined according to the shape of the manhole block to be molded, like the base 300 described above. In this embodiment, the outer mold 310 is also formed to have a semicircular shape because the circular mold has a circular cross section. As in the case of the base 300, the outer mold 310 may also be provided with a fastening hole at a lower end and at both sides with a predetermined gap therebetween.

The lower outer frame 410 is used in manufacturing the lower concrete manhole block 130, the upper plate manhole block 110, and the upper concrete manhole block 210. The structure in which the lower outer frame 410 is specifically disposed at the time of manufacturing each manhole block will be described later with reference to FIGS. 10, 12 to 13.

The lower outer frame 410 may have a fastening hole for engaging with the base 300 and the outer mold 310.

The length of the lower outer frame 410 in the vertical direction is adjusted according to the size of the manhole block to be formed. However, if necessary, the length of the lower outer frame 410 may be increased to generally use a manhole block having various dimensions Do.

Meanwhile, it is preferable that a predetermined groove is drilled in the connection portion between the molds to insert the sealing member into the groove to prevent leakage when the concrete is cast.

A fastening hole may be formed at a central portion of the lower outer frame 410 so as to be coupled to a mold for forming an inspection hole described later. This will be described later with reference to FIG. 12 and FIG.

As shown in FIGS. 5 and 6, reinforcing ribs formed in the horizontal and vertical directions are also provided on the rear surface of the lower outer frame 410, thereby enhancing the strength of the frame.

The inner mold 500 is provided on the upper side of the base 300 and forms the inside of the manhole block to be manufactured. The shape of the inner mold 500 is determined according to the shape of the manhole block to be molded, such as the base 300 and the outer mold 310 described above. Hereinafter, a manhole block having a circular shape will be described as an example.

In the present embodiment, the inner mold 500 is formed in a circular shape in cross section, and a reinforcing rib formed horizontally and vertically is provided on the inner side. At this time, the inner mold 500 may also have a circular cross section as a plurality of members are coupled to each other as in the case of the base 300 and the outer mold 310.

Also, in the present embodiment, the inner mold 500 includes a lower inner frame 530 forming a lower portion inside the manhole block. The lower inner frame 530 may also be formed with a fastening hole to be coupled with the inner mold 500.

In the present embodiment, the inner molds 500 are integrated into one, but two or more inner molds 500 can be easily demoulded.

Since the manhole block manufacturing apparatus according to the present embodiment is for manufacturing a manhole block having a circular cross section, the periphery is completely shielded by the base 300 and the outer mold 310, The mold 300 and the outer mold 310 to form the manhole block.

However, for example, in the case of manufacturing a manhole block having a square cross section, the concrete may be evenly filled in the manufacturing apparatus due to its own weight even if a mold for covering the upper portion is not separately provided. Of course, in this case, a mold for covering the upper portion may be provided to prevent the foreign matter from entering.

In the present embodiment, since the process of manufacturing the lower concrete manhole block 130 is illustrated, when the invert is required, the metal mold for forming the invert 710 is formed by using the fastening holes arranged in the lower inner frame 530 Can be combined.

In addition, when a connection port is formed in the manhole block to be manufactured, at least one of the connection port forming mold 720 and the outer mold 310 may be provided on the base 300 and the outer mold 310.

The connection part forming mold 610 is connected to be penetrated by the inner mold 500 and is located in a space formed between the inner mold 500 and the base 300 and the outer mold 310. At this time, the connecting portion forming mold 610 can change the relative position along the surface of the inner mold 500, and thus the height of the manhole block to be manufactured can be variously changed.

That is, in this embodiment, the height of the manhole block to be manufactured will increase as the distance between the connecting portion forming mold 610 and the lower outer frame 410 is increased.

In addition, when the vertical concrete manhole block 120 is manufactured, the height of the vertical concrete manhole block 120 can be adjusted by providing a plurality of connection mold forming dies 610 and separating them from each other.

7, the interior of the manhole block manufacturing apparatus is shown, and a method of installing the connecting portion forming mold 610 will be described.

7, the mold 610 for connecting part is formed by passing through the inner mold 500 and surrounding the inner mold 500, and includes a base 300 and an inner mold 500, And is located in a space formed between the outer mold 310 and the inner mold 500.

In this case, when the connection mold forming mold 610 is directly fastened to the inner mold 500, the base 300 and the outer mold 310 with separate fastening holes or the like, the operation becomes complicated, There is a problem that must be formed. Also, when manufacturing a manhole block having a circular cross section as in the present embodiment, the molding space is blocked by the base 300 and the outer mold 310, which makes it difficult for the operator to work.

Therefore, in this embodiment, the fixing bar 800 is used for fixing the connection portion forming metal mold 610.

The fixing bar 800 may be formed to be long in the longitudinal direction to fix the connecting part forming mold 610 and at least part of the fixing part 800 may protrude to the outside of the outer mold. Accordingly, it is easy to work from the outside, and in particular, when the manhole block is demolded, the mold 610 for forming the connecting portion can be removed from the outside.

In the case of manufacturing the vertical concrete manhole block 120, a plurality of the connection part forming dies 610 are provided. In this case, the lower outer frame 410 is removed and the fixed bar 800) may be installed.

A fixture 502 may be formed on at least one of the base 300 and the outer mold 310 to fix the fixing bar 500 connected to the connection portion forming mold 610.

Particularly, in this embodiment, the fixture 502 is provided on the side of the base 300 and the outer mold 310, and an insertion hole for inserting and fixing the fixing bar 800 is formed. Accordingly, the connection part forming mold 610 can be stably fixed at the designated position.

A plurality of fixtures 502 may be formed along the circumference of the outer mold 310 and the base 300. Also, unlike the present embodiment, the fixture 502 may be provided at various positions, and various methods of fixing the fixture 502 may also be used.

Meanwhile, since the connection portion forming mold 610 is formed to adjust the relative position with respect to the inner mold 500, the fixing bar 800 can also be formed to be adjustable in length. The length of the fixing bar 800 may be adjusted by various methods.

 For example, a plurality of members may be formed to be selectively engageable with each other in the longitudinal direction so that the length thereof can be adjusted according to the acceleration or deceleration of the member. Alternatively, a plurality of members, It is possible to adjust the length by sliding each member. It goes without saying that various other methods may be used.

8 is a detailed view of the connection part forming mold 610 and the fixing bar 800 combined. 8, a connection groove 614 for connecting the fixing bar 800 is formed on the connection portion forming metal mold 610 along the circumference of the connection portion forming metal mold 610. As shown in FIG. 8, do. Inside the connection groove 614, a screw thread is formed and screwed to the bolt provided in the fixing bar 800. At this time, the connection groove 614 may be formed not only as a groove but also as a hole passing through the connection part forming metal mold 610.

The outer side 611 of the connecting portion forming mold 610 is protruded to the left as compared with the inner side 613 in order to form the spigots 123 and 133 and the sockets 115 and 125 of the manhole block to be manufactured. The fixing bar 800 may be coupled to the inner side 613 of the connection part forming mold 610. The fixing bar 800 may be formed on the inner side of the connecting part forming mold 610, have.

In this embodiment, a sealing groove forming portion for forming the sealing grooves 141 and 142 of the manhole block is protruded and formed on the inner side 613 of the connecting portion forming mold 610.

Also, a plurality of sealing groove forming portions forming the sealing grooves 141 and 142 of the manhole block may be provided.

Next, referring to FIG. 9, there is shown a state in which the connecting member fastening nut is fastened using bolts.

The cross-sectional view of the connecting portion forming mold 610 shown in FIG. 9 shows a section of a portion shifted a predetermined distance along the arc from the end surface of the connecting portion forming mold 610 shown in FIG. 8, 610 is provided with a mold through hole 612 for inserting and arranging an insert hole forming mold for forming an insert hole.

9 is a view illustrating a state where the insert hole forming metal mold is fixed using bolts when the metal mold for forming an insert hole is composed of a connecting member fastening nut 155 used for forming a lower concrete manhole block.

The manhole block manufacturing apparatus according to an embodiment of the present invention has been described above. Hereinafter, a manhole block manufacturing method and a manhole block manufacturing method using the same will be described.

Referring to FIG. 10, the construction and assembly method of the manhole block manufacturing apparatus for manufacturing the lower concrete manhole block 130 will be described.

10, an outer mold 310, an inner mold 500, a mold 610 for forming a connection portion, and a mold 610 for forming a connection port are formed on the upper side of the base 300 for manufacturing the lower concrete manhole block 130. [ (Not shown).

In order to construct such a manhole block manufacturing apparatus, the assembling procedure is roughly composed of assembling the outer mold 310 and the connecting portion forming mold 610 to the base 300 and assembling the inner mold 500.

The lower outer frame 410 is aligned with one end of the base 300 by using a crane or a forklift or the like on the base 300 and the bolts and the like are fastened to the lower outer frame 410 and the fastening holes formed in the base 300 Through which the connecting means is fastened.

At this time, the connecting part forming mold 610 is fixed by using the fixing bar 800 according to the length of the manhole block to be formed, and if necessary, the connecting member fastening nut is fastened to the connecting part forming metal mold 610 using bolts .

When an invert is required, the mold 710 for forming an invert is assembled by using a fastening hole disposed in the lower inner frame 530.

On the other hand, reference numeral C designates concrete to be put into a manhole block manufacturing apparatus.

11, the construction and assembly method of the manhole block manufacturing apparatus for manufacturing the vertical concrete manhole block 120 will be described.

As shown in FIG. 11, an outer mold 310, an inner mold 500, and two molds 610 and 630 for forming connection portions are coupled to the upper side of the base 300 for manufacturing the concave manhole block.

The assembling sequence of the manufacturing apparatus for manufacturing the vertical concrete manhole block 120 is almost the same as the construction of the manufacturing apparatus for manufacturing the lower concrete manhole block 130 described above.

At least two connection molds 610 and 630 are formed, and when a plurality of vertical spheres are simultaneously produced at the same time, a mold for forming a connection portion is arranged in a quantity corresponding to the number of vertical spheres.

At this time, the lower outer frame 410 may be separated to fix the two connection portion forming dies 610 and 630 to the fixing bar 800, respectively.

On the other hand, in the case of this embodiment, an insert hole forming mold 730 for forming an insert hole is disposed through the connection portion forming metal mold 610. Here, the insert hole forming metal mold 730 is made of a flexible material and has a smooth surface to facilitate separation from the manhole block formed after curing. The insert hole forming metal mold 730 is inserted into the insert hole forming metal mold 730 as shown in FIG. 11 to prevent the insert hole forming metal mold 730 from being deformed.

The insert hole forming metal mold 730 may be formed to be integrally formed with the manhole block so as to be embedded in the formed manhole block.

Referring to FIG. 12, the construction and assembly method of the manhole block manufacturing apparatus for manufacturing the top plate manhole block 110 will be described.

12, an outer mold 400, an inner mold 500, a mold 610 and 630 for forming a connection portion, and a mold for forming an inspection hole (not shown) are formed on the upper side of the base 300 for manufacturing the top plate manhole block 110 740).

The assembling procedure of the manufacturing apparatus for manufacturing the top plate manhole block 110 is almost the same as the manufacturing apparatus for manufacturing the bottoms manhole block 130 described above.

In the assembling of the manufacturing apparatus for manufacturing the top plate manhole block 110, a step of installing the insert hole forming metal mold 730 through the connecting portion forming metal mold 610, An assembling step of joining the inspection port forming mold 740 after joining to the base 300 is added.

At this time, in the present embodiment, one connection mold 610 is provided, but in addition, two or more connection part forming molds 610 are further provided, and one connection part forming mold 610 is used for forming the manhole block And other molds for forming the connecting portion may be configured to perform a role of stably supporting the inner mold 500.

Referring to FIG. 13, the construction and assembly method of the manhole block manufacturing apparatus for manufacturing the upper sphere will be described.

As described above, the upper concrete manhole block 210 has a structure in which the upper and lower concrete manhole blocks 110 and 120 are integrally combined and are integrally formed with the upper concrete manhole block 210, It is possible to increase the workability and reduce the construction cost.

The assembling procedure of the manufacturing apparatus for manufacturing the upper concrete manhole block 210 is substantially the same as that of the apparatus for manufacturing the upper plate manhole block 110 except that the length of the vertical concrete manhole block 120, The forming die 610 is further moved to the right along the longitudinal direction.

A method of manufacturing the manhole block using the manhole block manufacturing apparatus will now be described.

The manhole block manufacturing method is performed through a concrete charging step, a manhole block forming step, a curing step, and a demolding step.

The concrete injecting step is a step of injecting concrete produced by mixing predetermined materials into a manufacturing mold. That is, concrete is injected into a molding space formed by combining a plurality of molds.

At this time, it is preferable to pour concrete into concrete using a predetermined vibrator to densely inject concrete.

In consideration of the installation conditions and the required strength, concrete of various constituents such as polymer concrete, cement mortar, and permeable concrete may be used as the concrete as required. It is also possible to manufacture a manhole block by using a substitute material other than concrete.

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

The curing step is a step of curing the formed manhole block by a predetermined method. The curing step may be performed by a planned temperature schedule, or may be performed in a natural state. Generally, concrete curing is a process of curing concrete by protecting the concrete under conditions suitable for hydration of cement for a certain period. Suitable conditions for curing are to maintain adequate temperature and humidity, to protect against external shocks and settling, and to maintain the same conditions for the duration of curing.

The demolding step is a step of separating the mold and the product after the curing is finished, and may proceed in the reverse order of the assembling process. That is, the demolding procedure of each of the manufacturing apparatuses for manufacturing the lower concrete manhole block 130, the vertical concrete manhole block 120, the upper plate manhole block 110, and the upper concrete manhole block 210 proceeds in the reverse order of the respective assembling processes do.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: manhole block 110: top plate manhole block
120: vertical concrete manhole block 130: lower concrete manhole block
200: manhole block 210: upper concrete manhole block
300: base 310: outer mold
410: lower outer frame 530: lower inner frame
610: Mold for forming a connection part 630: Mold for forming a connection part
710: Mold for forming an inverter 720: Mold for forming a connection port
730: Mold for forming an insert hole 740: Mold for forming an inspection hole
800: Fixed bar C: Concrete

Claims (16)

A manhole block manufacturing apparatus for molding a manhole block into which concrete is charged,
A base forming a bottom surface of the manufacturing apparatus and forming a side surface outside the manhole block;
An outer mold provided on the base and forming a remaining surface outside the manhole block;
An inner mold provided on the base and forming the inside of the manhole block;
At least one connection portion forming mold provided on the base and forming a connection portion for interconnecting the manhole blocks; And
A fixing bar formed to be elongated in the longitudinal direction to fix the connection portion forming metal mold and at least a part of which protrudes outside the outer mold;
/ RTI >
Wherein the inner mold comprises:
And the relative position of the mold for forming the connecting portion to the inner mold can be changed. The method according to claim 1,
The fixing bar may include:
Wherein the plurality of members are formed to be selectively engageable in the longitudinal direction. The method according to claim 1,
The fixing bar may include:
A manhole block manufacturing apparatus comprising: a plurality of members slidably coupled to each other to be adjustable in length. The method according to claim 1,
Wherein at least one of the base and the outer mold has a fixture for fixing the fixing bar. The method according to claim 1,
Wherein at least one connection groove for connecting the fixing bar is formed on the periphery of the connecting portion forming metal mold.
The method according to claim 1,
Wherein at least one of the outer mold and the inner mold comprises:
Wherein the plurality of mold frames are coupled by a predetermined connecting means.
The method according to claim 1,
Wherein the inner mold comprises:
And is disposed so as to penetrate through the connecting part forming metal mold. The method according to claim 1,
Further comprising an inverter forming mold coupled to the inner mold to form an inverter for smoothly flowing sewage in the manhole block and preventing deposition of dirt. The method according to claim 1,
And at least one connection port forming mold coupled to at least one of the base, the outer mold, and the inner mold to form a connection port of the manhole block. The method according to claim 1,
And a fastening nut coupled to at least one of the base and the outer mold to fasten a bolt capable of transferring the formed manhole block, wherein the fastening nut is embedded in a manhole block to be molded, Wherein the manhole block manufacturing device is integrally formed. The method according to claim 1,
Further comprising a mold for forming an inspection hole coupled to at least one of the outer mold and the inner mold to form an inspection hole of the manhole block. The method according to claim 1,
Further comprising an insert hole mold provided in a space formed by the outer mold and the inner mold to form an insert hole for inserting a connecting member interconnecting the manhole blocks into the manhole block.
13. The method of claim 12,
Wherein the insert hole mold comprises:
And a connecting member fastening nut for fastening the connecting member to the formed manhole block.
Engaging an outer mold forming a manhole block outer sidewall at an upper portion of a base forming a bottom wall of the manufacturing apparatus and forming a side wall outside the manhole block;
Coupling at least one mold for forming a connection portion on the base to form a connection portion for interconnecting the manhole block;
Connecting a fixing bar, which is elongated in the longitudinal direction and at least partially protruded to the outside of the outer mold, to the connection part forming mold; And
Coupling an inner mold forming an inner sidewall of the manhole block to the connecting portion forming mold on the base;
Wherein the manhole block manufacturing apparatus comprises: A concrete injection step of injecting concrete produced by mixing predetermined materials into a space formed by an inner mold and an outer mold;
An outer mold provided on the upper side of the base and forming a remaining sidewall outside the manhole block, an upper mold provided on the upper side of the base, An inner mold forming inner sidewalls of the block and a fixing bar formed to be long in the longitudinal direction to fix the mold for forming the connection portion and at least a part protruding outside the outer mold, A manhole block forming step;
A curing step of curing the formed manhole block to a predetermined strength; And
A demolding step of separating the cured manhole block from the manhole block manufacturing apparatus;
Wherein the manhole block comprises a plurality of manhole blocks. A manhole block manufactured by the manhole block manufacturing method of claim 15.

Images