KR100682311B1 - Multistage lock manhole - Google Patents

Abstract

A multistage assembly-type locking manhole is provided to improve the dislocated combining efficiency of the combining protrusions of the connection anchor by forming the opening grooves at the socket end protrusions with a regular interval and exposing the combining protrusions to the outside. A multistage assembly-type locking manhole combined with lower, center, and upper manholes by uneven socket end protrusions(100,200) is composed of a combining protrusion(310) of a connection anchor(300) embedded in slabs of the socket end protrusions of one side of the manholes to be exposed to the outside; and opening grooves(230) whose protrusions are opened to the socket end protrusions of the other side of the manhole. The combining protrusions of the connection anchor embedded in the slabs are exposed to the opening groove. The combining protrusions are exposed with Gamma-shapes.

Description

Multistage lock manhole

1 is a cross-sectional view of a conventional lower manhole, middle manhole and upper manhole of the present invention;

Figure 2 is a cross-sectional view of the conventional lower manhole, middle manhole and upper manhole of the present invention,

3 is an exploded cross-sectional view of the lower manhole, the middle manhole and the upper manhole of the present invention;

Figure 4 is a bottom view of the groove socket step of the manhole of the present invention,

5 is a partially cutaway perspective view of the connection anchor portion formed in the groove socket step and the protruding socket step of the manhole of the present invention;

6 and 7 are front and side views of the coupling example of the connection anchors embedded in the groove socket step and the protrusion socket step of the manhole of the present invention,

8a, b, c is a perspective view and a coupling example of the connection anchor of the present invention,

9 is an exploded perspective view of the fitting groove insert and the release preventing projection embedded in the slab of the rectangular manhole of the present invention;

Figure 10 is a partially cut away cross-sectional view of the engagement prevention projection coupled to the fitting groove insert of the square-shaped manhole of the present invention.

Explanation of symbols on the main parts of the drawings

10,20.30: Manhole 11,21,31: Slab

12,22,32 Manhole hole 13,23,33 Air passage

100: groove socket step 110: groove socket step

120: slope 200: protrusion socket step

210: outer surface of the protrusion socket stepped 220: inclined surface

230: opening groove 300: connection anchor

310: coupling jaw 320: foundation jaw

400: packing ring mounting groove 410: packing ring

500: fitting groove insert 510,610: fall prevention protrusion

600: fitting protrusion pin

The present invention relates to a manhole in which underground sewer pipes, water pipes, underground cables, and the like are embedded. More specifically, the manhole embedded in the basement is assembled in a multi-stage lower manhole, an intermediate manhole and an upper manhole. The upper and lower surfaces corresponding to the lower and lower manholes, the middle manhole and the upper manholes are assembled into the socket step of the unevenness, and the coupling step of the connection anchor embedded in the slab of the manhole is exposed at equal intervals on the peripheral surface of the socket step. At the same time, by forming opening grooves at equal intervals in the socket step of the corresponding manhole coupled with the socket step, the openings of the connection anchors embedded in the slab of the manhole are exposed to the opening grooves. It relates to a multi-stage prefabricated locking manhole that can engage the coupling jaws of the connection anchor of the manhole socket step.

In addition, the present invention, when the manhole is a square slab, forming a fitting groove insert in all four sides of the socket stepped through the fitting projection pin between the corresponding fitting groove inserts of the socket stepped mutually lower manhole, middle The present invention relates to a multi-stage prefabricated locking manhole that can firmly connect the manhole and the upper manholes to prevent the manholes from being separated from each other even if the ground is settled.

In general, manholes are manufactured to allow workers to enter and exit the underground sewer pipes, water pipes, underground cables and pavement, or to inspect and clean them.

In particular, the height of the manhole is determined by the height of the manhole (increased height), it is generally produced in the form of the site, and assembled or manufactured in the factory, such as integral or lower manhole, middle manhole and upper manhole.

As shown in FIG. 1, a conventional prefabricated manhole is made of a lower manhole 10, an intermediate manhole 20, and an upper manhole 30 so that corresponding upper and lower surfaces of the manholes 10, 20, and 30 have uneven sockets. It is assembled to be placed correspondingly with the step. Since the manholes (10, 20, 30) are assembled in such a way that as above, if the ground subsidence occurs after installation, the connection part of the lower manhole, the middle manhole and the upper manhole is separated and separated, so that the manhole rainwater, sewage The back penetrates into the ground, causing a second safety accident.

As disclosed in Korean Patent Laid-Open Publication No. 10-2005-0103165 for a manhole having a multi-stage connection structure for preventing separation of the lower manhole, the middle manhole and the upper manhole, the manhole having the lower manhole and the upper manhole A plurality of insert nuts which are inserted and fixed to the lower side of the lower manhole side and the upper manhole side connecting hole and the lower manhole side connecting hole respectively formed at a predetermined depth from the upper and lower end faces to the coupling surface of the manhole, It is formed with a space of a certain depth on the outer circumferential surface of the upper manhole to be coupled to the coupling work groove, the insert nut to expose the upper end of each upper manhole-side connection hole, the upper end of which is inserted through the upper manhole-side connection hole of the upper manhole It is fastened to the upper part of each connection bolt and connection bolt exposed to the coupling work groove to firmly connect the lower manhole and the upper manhole. It is composed of a plurality of coupling nut.

The manhole having the connection structure inserts the connection bolt through the lower manhole-side connection hole of the lower manhole while the lower manhole is installed at the starting point or intersection point where the thickness or direction of the sewer pipe or water pipe is changed, and the middle of the straight line having a long length. It is to be coupled to the insert nut of each of the lower manhole-side connecting hole through the screw coupling.

In the above example, the upper and lower manholes may be integrally held by the connecting bolt and the insert nut. However, the manholes that are heavy in the installation of the manholes are lifted by a connection device such as a crane or a forklift by using a connecting wire or the like. While there is a difficulty in accurately setting the assembly position of the upper manhole in the lower manhole, there is also a problem in that the efficiency of the installation work is deteriorated due to the need to fasten the bolts and nuts into the manhole.

The present invention is to solve the above problems, the present invention is formed by the upper and lower surfaces of the lower manhole, the middle manhole and the upper manhole formed of a cylindrical slab as a tucked socket step, coupled to the one side of the socket socket step A connecting anchor is formed to expose the jaw, and an opening groove in which the jaw is opened is formed in the groove socket end of the corresponding manhole on the other side, and the coupling jaw of the connecting anchor is exposed to the opening groove. It is an object of the present invention to be able to engage the coupling jaws of the connection anchors of the socket holes of the manholes corresponding to each other without requiring a tool. In addition, the present invention is formed by the upper and lower surfaces of the lower manhole, the middle manhole and the upper manhole formed of a square slab slab as a tucked socket step, the mandrel corresponding to each other so that the fitting groove inserts are embedded in all four sides of the socket step Prior to assembling the socket step of the fitting projection pins are fitted to the fitting groove inserts for the purpose of being coupled to fit so that the manholes corresponding to each other can be maintained by the fitting projection pins.

The present invention is a multi-stage prefabricated manhole which allows the lower manhole, the middle manhole and the upper manhole, which are formed of a cylindrical slab, to be coupled to the uneven socket step, wherein the engaging jaw of the connection anchor embedded in the slab of one socket step of the manholes is exposed. And forming an opening groove in which the jaw is opened in the other socket step of the manhole, and the coupling groove of the connection anchor embedded in the slab is exposed in the opening groove. The basic feature is that they are combined to fit each other.

In addition, the connecting anchor of the connecting anchor buried in the slab of one socket step of the manholes of the present foot is exposed in a "b" shape, and the connecting anchor buried in the slab of the opening groove opening the jaw in the other socket step of the manhole. The coupling jaws of the are exposed in a "b" shape, so that the coupling jaws of the connection anchors of the corresponding socket steps are mutually coupled to each other.

In addition, in the manhole connection structure of the multi-stage, such that the lower manhole, the middle manhole and the upper manhole formed by the square frame-shaped slab of the present invention are coupled to the socket step of the unevenness, fitting grooves on both sides of the socket stepped to be coupled to each other The inserts are embedded in the fitting groove pins to be interfitted with the fitting groove inserts corresponding to each other, so that the manholes corresponding to each other can be maintained by the fitting projection pins.

In addition, a fall prevention protrusions are formed on the circumferential surface of the fitting groove insert and the fitting protrusion pins which are inserted at all sides of the socket steps of the manholes of the present invention so as to be integrally assembled by mutual interference fitting, and the lower manhole The air flow paths formed in the slab of the middle manhole and the upper manholes are connected to each other so that harmful gases in the manhole can be discharged to the outside, and the packing rings are provided at the socket steps of the lower manhole, the middle manhole and the upper manhole. The packing ring mounting grooves to be mounted are formed.

Hereinafter, the configuration and operation of the present invention will be described in detail.

2 and 3, the multi-stage prefabricated locking manhole is composed of the lower manhole 10, the middle manhole 20 and the upper manhole 30 of the base, sequentially buried in the ground and the upper manhole ( A manhole cover (not shown) is covered in the opening of 30).

The lower manhole 10, the middle manhole 20 and the upper manholes 30, which are formed into cylindrical slabs 11, 21, and 31 in FIGS. 2 to 8a, b, c, these lower manholes 10, middle The manhole 20 and the upper manhole 30 have manhole holes 12, 22, and 32 through the center, and uneven socket steps 100 and 200 are formed on the top and bottom surfaces of the slabs 11, 21, and 31. It is a form that can be separated from each other. Uneven socket step (100,200) is to ensure a wide contact cross-sectional area with inclined surfaces (120,220) of approximately obtuse angle.

The concave and convex socket steps 100 and 200 are formed on one side of the upper and lower surfaces of the concave groove socket step 100, and the other of the socket stepped steps 200 and 200.

That is, as shown in Figs. 2 to 6, the groove socket stepped jaw 100 is formed as a jaw recessed into the manhole holes 12, 22, and 32, and the grooved socket stepped jaw outer surface 110 and the inclined surface 120 are shown. And a protruding socket stepped jaw 200 is formed as a jaw protruding inwardly of the manhole holes 12, 22, and 32 and connected to the protruding socket stepped jaw outer surface 210 and an inclined surface 220. It is formed with a circumferential surface.

In addition, the engaging jaw 310 of the connection anchor 300 embedded in the slab (11, 21, 31) of the groove socket stepped jaw (100) is exposed, and in the protruding socket stepped jaw (200), the jaw is partially opened opening A groove 230 is formed, and the coupling groove 310 of the connection anchor 300 embedded in the slabs 11, 21, and 31 is formed in the opening groove 230.

The connecting anchor 300 is embedded at the time of forming the manholes 10, 20, and 30, and the material may be a rigid material having durability and corrosion resistance. In addition, the connection anchors 300 are plate-shaped anchors having a predetermined width and employ one or a plurality of foundation jaws 320 that may be embedded and maintained in the slabs 11, 21, and 31.

The coupling jaws 310 of the connection anchor 300 are bent to be formed so that the coupling jaws 310 of the connection anchors 300 of the socket steps 100 and 200 corresponding to each other are coupled to each other by a fitting manner.

5 to 7, the coupling jaw 310 of the connection anchor 300 embedded in the slab (11, 21, 31) of one groove socket step 100 of the manhole (10, 20, 30) is To the slab (11, 21, 31) of the opening groove 230, the jaw is exposed to the "a" shape, and the jaw is opened in the protrusion socket step 200 corresponding to the other side of the manhole (10, 20, 30) The coupling jaw 310 of the connection anchor 300 to be embedded is exposed in a "b" shape, so that the coupling jaws 310 of the connection anchor 300 of the corresponding socket step 100 and 200 are mutually offset, That is, by turning the upper manhole to the right in Figures 6 and 8b to be coupled as shown in Figures 7 and 8c it is possible to firmly hold and fix the upper and lower manholes (10, 20, 30).

The connection anchors 300 to the manholes 10, 20, and 30 are preferably to be coupled to each other in three places as shown in Figure 4, can be installed by increasing or decreasing in accordance with the specifications of the manhole.

And, as shown in Figure 8a, b, c coupling jaw 310 of the connection anchor 300, the "b" shaped coupling jaw 310 and the "b" shaped coupling jaw 310 is firmly shifted from each other By maintaining the fit, the upper " b " shaped coupling jaw 310 is bent to be raised in front of the bent portion, and both ends of the " b " shaped portion are formed so as to form an elevation difference between each other.

Accordingly, the coupling jaw 310 of the connection anchor 300 is inserted into the coupling jaw 310 of the connection anchor 300 in a misalignment state, and is fully engaged with each other. It can be maintained without flow by interference fit as shown.

In addition, the packing ring mounting grooves 400 in which the packing rings 410 are mounted are formed in the socket steps 100 and 200 of the lower manhole 10, the middle manhole 20, and the upper manhole 30.

That is, as shown in Figure 5, the packing ring mounting groove 400 is formed in the entire circumference of the groove socket stepped outer surface 110 connected to the grooved socket stepped 100 and the inclined surface 120, and also the protrusion socket stepped ( A packing ring mounting groove 400 is formed in the entire circumference of the protruding socket stepped outer surface 210 connected to the 200 and the inclined surface 220, and a packing ring 410 of rubber material between the packing ring mounting grooves 400. ) Can be mounted to maintain the airtightness of the gap of the coupling portion between the manhole (10, 20, 30) to prevent leakage and maintain a stable.

2 and 3, the air flow passages 13 and 23 formed in the slabs 11, 21, and 31 of the lower manhole 10, the middle manhole 20, and the upper manhole 30 are shown in FIGS. 33 are connected to each other so that harmful gases in the manhole can be released to the outside.

The air flow passage 13 of the lower manhole 10 of the base is connected to the manhole hole 12 so that noxious gas in the manhole flows through the air flow passage 23 of the middle manhole 20 through the air of the upper manhole 30. In the distribution path 33, it exits to the exhaust port (not shown) which communicates with the outside.

The formation of the air passages (13, 23, 33) may be embedded in the PE pipe is embedded in the slab (11, 21, 31) during the forming of the manhole (10, 20, 30) to cure the concrete.

Next, FIGS. 9 and 10 relate to the lower manhole 10, the middle manhole 20, and the upper manholes 30, which are formed of a slab of a rectangular frame shape, and are provided on the top and bottom surfaces of the manholes 10, 20, and 30. Like the above-described cylindrical manhole is coupled to the uneven socket step (100,200).

The fitting projection pin 600 is pressed against the corresponding fitting groove inserts 500 by embedding the fitting groove inserts 500 on all sides of the socket tops 100 and 200 of both the upper and lower surfaces coupled to each other. The fitting is coupled to each other, the manholes 10, 20, 30 corresponding to each other is to be maintained by the fitting projection pin 600.

The fitting groove insert 500 is embedded in the slab (11, 21, 31) during the molding of the manhole (10, 20, 30) can be embedded in the curing of concrete. The fitting groove insert 500 is formed to prevent the fall prevention projections 510 on the circumferential surface thereof to keep it from coming out after curing.

 The fall prevention protrusions 610 are also provided on the circumferential surface of the fitting protrusion pins 600 which are mounted on the fitting groove inserts 500 inserted in all directions of the socket stepped portions 100 and 200 of the manholes 10, 20, and 30. Is formed, the fitting projection pin 600 to the fitting groove insert 500 is integrally assembled with the interference fit to keep the manhole is not separated.

In addition, the fitting groove insert 500 and the fitting projection pin 600 is formed of a synthetic resin, the core rod 620 in the fitting projection pin 600 to maintain the rigidity of the fitting projection pin 600 It is buried so that the manholes (10, 20, 30) can be maintained firmly.

As described above, the present invention is a manhole buried underground, the upper and lower surfaces of the lower manhole, the middle manhole and the upper manhole correspondingly coupled in the prefabricated manhole assembled into a multi-stage lower manhole, middle manhole and upper manhole, etc. It is to be assembled to the socket step of the uneven, and also to expose the coupling step of the connection anchor buried in the slab of the manhole at equal intervals on the peripheral surface of the socket step, and at the socket step of the corresponding manhole coupled with the socket step Opening grooves are formed at intervals so that the coupling grooves of the connection anchors embedded in the slab of the manhole are exposed in the opening grooves, so that the coupling projections of the connection anchors of the manhole socket sockets corresponding to each other can be engaged with each other. .

Claims (5)

In the multi-stage prefabricated manholes that allow the lower manhole 10, the middle manhole 20, and the upper manhole 30 formed of a cylindrical slab to be coupled to the socket stepped portions 100 and 200 of the unevenness, The coupling jaw 310 of the connection anchor 300 embedded in the slab (11, 21, 31) of one socket step (100, 200) of the manhole (10, 20, 30) is exposed, the manhole (10, 20, An opening groove 230 in which the jaw is opened is formed in the other socket end of the socket 30, 200, and the coupling jaw of the connection anchor 300 embedded in the slabs 11, 21, and 31 is formed in the opening groove 230. 310 is formed so as to be exposed, the multi-stage prefabricated locking manhole, characterized in that the coupling jaw 310 of the connection anchor 300 of the corresponding socket step (100,200) is fitted to each other. The method of claim 1, wherein the engaging jaw 310 of the connection anchor 300 embedded in the slab (11, 21, 31) of one socket step (100,200) of the manhole (10, 20, 30) is "A" shaped Coupling jaw of the connection anchor 300 is exposed to, and embedded in the slab (11, 21, 31) of the opening groove 230, the jaw is opened in the other socket end (100, 200) of the manhole (10, 20, 30) A multi-stage prefabricated lock manhole, characterized in that the 310 is exposed in a "b" shape, and the engaging jaws 310 of the connection anchors 300 of the corresponding socket steps (100,200) are fitted to each other. The lower manhole 10, the middle manhole 20 and the upper manhole 30, which are formed of a slab of a rectangular frame shape, are provided in a multi-stage prefabricated manhole that is coupled to the uneven socket steps 100 and 200. The fitting projection pin 600 is fitted to the fitting recess groove inserts 500 corresponding to each other so that the fitting groove inserts 500 are embedded on all sides of the socket stepped portions 100 and 200 which are coupled to each other. And, the manhole (10, 20, 30) corresponding to each other multistage prefabricated locking manhole, characterized in that the connection can be maintained by the fitting projection pin (600). According to claim 3, The fitting groove insert 500 is inserted into the four sides of the socket step (100,200) of the manhole (10, 20, 30) fall prevention protrusions (510, 610) on the circumferential surface of the fitting projection pin (600) Multi-stage prefabricated locking manhole, characterized in that is formed to be integrally assembled by mutual interference fit. The air flow passages 13, 23, according to any one of claims 1 to 4, formed in the slabs (11, 21, 31) of the lower manhole (10), the middle manhole (20) and the upper manhole (30). 33) The multi-stage prefabricated locking manhole, which is connected to each other so that harmful gas in the manhole can be released to the outside.

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