KR200224770Y1 - Inner covering device for manhole - Google Patents

Abstract

The present invention relates to the inner lid device of the manhole designed to improve the stability and sealing of the manhole.

According to the present invention, the manhole frame 10 includes a manhole cover 10 and a manhole cover 20 installed on the lid support 11 inside the upper end of the manhole frame 10. The inner lid support part 12 is formed inside the lid support part 11 of the manhole cover 30 to be detachably installed therewith, but between the inner lid support part 12 and the manhole cover 30. Sealing 40 is interposed, and a plurality of places around the inner lid support portion 12 to the inner lid support portion 12 with the washer 50 and bolt 60 with the inner lid support 12. It provides a mandrel cover device of the manhole characterized in that the configuration by forming a fixed portion 13 that can be fixed by tightening.

Description

Manhole Cover Device {INNER COVERING DEVICE FOR MANHOLE}

The present invention relates to the inner lid device of the manhole, in particular the safety and sealability of the manhole It relates to the inner lid device of the manhole designed to greatly improve the.

The manhole related to the present invention is used to be installed near the surface of a road or a sidewalk to serve as an entrance to an underground facility. In the related art, the manhole is generally detachably coupled with a single manhole cover inside the upper end of the manhole frame. When the manhole cover is installed and opened, the passage to the underground facility is opened. Therefore, such a conventional manhole is easy to access the underground facilities simply by opening the manhole cover, so the security of the main underground facilities is insufficient, and if the manhole cover is randomly peeled off or damaged, the manhole passage is exposed to the outside. There are frequent problems that cause safety accidents, and rainwater during rainy weather is difficult to penetrate into the manhole through the gap between the lid and the frame, it is difficult to safely seal the facilities inside the manhole.

Accordingly, the present invention has been made in view of the purpose of providing a mandrel lid device that can effectively solve the above problems as described above to greatly improve the sealability and safety of these manholes.

1 is a perspective view of a manhole frame in the manhole to which the present invention is applied;

Figure 2 is a perspective view of the manhole frame coupled to the manhole frame of Figure 1 fixed;

FIG. 3 is a perspective view of a state in which a manhole cover is coupled to the inside of an upper end of the manhole frame of FIG. 2;

Figure 4 is a cross-sectional view of the coupled state of the manhole to which the present invention is applied.

Explanation of symbols on the main parts of the drawings

10: manhole frame 11: lid support

12: inner lid support portion 13: fixed portion

14: sealing groove 15: manhole passage

20: manhole cover 30: manhole cover

40: sealing 50: washer

60: bolt

The purpose of the above is a manhole comprising a manhole frame and a manhole cover that is covered and installed inside the upper end of the manhole frame according to the present invention, by forming an inner lid support portion inside the manhole frame to remove the manhole inside the lid It is installed to be coupled to each other, but installed through the sealing between the inner lid support and the manhole cover, the inside of the manhole frame The lid support circumference is achieved by providing an inner lid device of the manhole characterized by forming a plurality of fixing portions that can be fixed by bolting the manhole lid to the inner lid support portion.

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

As illustrated in FIGS. 1 to 4, the present invention provides a manhole cover 20 which is detachably covered and installed on the lid support 11 inside the upper end of the manhole frame 10 and the manhole frame 10. In the manhole comprising a configuration, the inner lid support portion 12 is formed inside the lid support portion 11 of the manhole frame 10 to install a detachable coupling to the manhole lid 30, but the inner lid Sealing 40 is interposed between the support part 12 and the manhole cover 30, and the manhole cover is provided in a plurality of places around the inner cover part 12 with respect to the inside cover part 12. It provides a mandrel cover device of the manhole characterized in that the configuration by forming the fixing portion 13 which can be fixed by tightening the 30 with the washer 50 and the bolt (60).

An annular groove 14 is formed between the portion where the fixing portions 13 are formed in the manhole frame 10 and the inner lid support 12 to support the sealing 40.

In operation, Figure 1 shows a state in which the manhole cover 20 and the manhole cover 30 is completely peeled from the manhole frame 10 in the manhole to which the present invention described above is applied, in this state the manhole frame ( 10) It is possible to enter the underground facilities through the central passage (15).

In the state of FIG. 1, the cover is coupled to the manhole cover 30 on the inner lid support 12 of the manhole frame 10, and then each of the washers 50 is fixed to the outer fixing parts 13. When the bolt 60 is interposed therebetween, each part of the washers 50 is fixed by pressing the edge of the manhole lid 30 by the fastening force of the bolt 60, so that the manhole lid 30 as shown in FIG. A stable coupling state is achieved, and since the sealing 40 is interposed between the manhole lid 30 and the inside of the lid support 12, complete waterproof is made and the water of the rainwater into the manhole passage 15. There is no fear of this penetration.

When the manhole cover 30 is coupled and installed as shown in FIG. 2 and then the manhole cover 20 is coupled to the lid support 11 thereon, the manhole cover as shown in the example of FIGS. 3 and 4 is combined. In this state, even if the manhole cover 20 is peeled off or damaged by any external cause, the inner manhole cover 30 still closes the manhole passage 15 stably. Since there is no risk of a conventional safety accident.

3 and 4, if necessary, the manhole cover 20 and the manhole cover 30 may be peeled off in sequence, and the necessary work may be performed.

Therefore, the present invention is to provide a useful effect that can be greatly improved in the safety and hermeticity in the installation and use of the manhole by the above-described configuration, action.

Claims (1)

In the manhole comprising a manhole frame 10 and a manhole cover 20 which is covered and installed on the lid support 11 inside the upper end of the manhole frame 10, The inner lid support part 12 is formed inside the lid support part 11 of the manhole frame 10 so that the manhole cover 30 is detachably installed therein, but the inner lid support part 12 and the manhole inside The sealing 40 is interposed between the lids 30, and the mandrel lid 30 is disposed on the inner lid support 12 at a plurality of places around the inner lid support 12. And the inner cover device of the manhole, characterized in that by forming a fixing portion 13 that can be fixed by tightening with a bolt (60).