KR200247046Y1 - A manhole in waterproof device - Google Patents

Abstract

The present invention, in order to provide a waterproof device inside the manhole that can prevent water from penetrating into the interior of the various manholes, the present invention, in the manhole that the lid is placed on the upper annulus of the frame to open and close the frame, A lower annulus frame 18 protruding inward to the lower portion of the lower annulus, the inner ring 20 is formed on the lower annulus and the packing 24 is fitted along the edge and the concave groove 22 is formed in the center, and the inner lid Turnbuckle 28 is mounted to the inner surface of the frame 10 and the upper surface of the inner lid to be in close contact with the lower ring frame 18 below.

Description

Waterproofing device inside manhole {A MANHOLE IN WATERPROOF DEVICE}

The present invention relates to a manhole, and more particularly, to a waterproof device inside the manhole that can prevent water from penetrating into the inside.

Typically, a manhole cover is provided on the upper part of the manhole which is installed as a gas pipe, a communication cable, an electric cable wiring, and a water supply line. This manhole cover seals the inside of the manhole while the lid 12 'is placed on the circular frame 10' as shown in FIG. However, in the conventional manhole cover, water such as rainwater penetrates between the lid and the frame, and water accumulates inside the manhole. This quickly corrodes the gas pipe, and there is an inconvenience in that the water must be pumped out when the worker is introduced into the manhole for various repairs and repairs. Especially when water penetrates electrical and communication cables, there is a risk of short circuits and short circuits.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to provide a waterproof device inside the manhole that can prevent water from penetrating into the interior of the various manholes, the present invention, the upper ring frame of the frame In the manhole that the lid is placed up and down to open and close the inside, the lower annulus 18 projecting inwardly to the lower portion of the frame, the lower annulus is placed over the lower annulus and the packing 24 is fitted along the edge and the recess groove in the center ( 22 is formed, the inner lid 20, the inner lid is characterized in that the turnbuckle 28 is mounted on the inner surface of the frame 10 and the upper surface of the inner lid so as to be in close contact with the lower annulus 18.

1 is a central cross-sectional view of the inside of the manhole according to the prior art.

Figure 2 is a central cross-sectional view of the waterproof manhole inside the manhole according to the present invention.

Figure 3 is an enlarged cross-sectional view of a part of the manhole inner waterproofing device according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10: frame 12.lid

16: Upper Fante 18: Lower Fante

20: inner lid 22: recessed groove

24: Packing 28: Turnbuckles

30: locking device

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

Figure 2 shows a central cross-sectional view showing the internal structure of the waterproof device inside the manhole according to the present invention. According to the figure, the upper lid 12 is closed to the inside of the cylindrical frame 10, the lower is provided with an inner lid 20.

In more detail, a circular frame 10 is provided on an upper part of the manhole in which various pipes and wires are installed, and an upper annulus 16 is formed on an upper side of the frame. And the upper ring frame 16 is closed on the frame while the normal lid 12 is seated. Thereafter, the lower annular frame 18 protruding inwardly is formed integrally with the frame 10 or is attached to the inner lower portion of the frame 10 by welding.

And the upper portion of the lower annulus frame 18 has a circular inner lid 20 that can be placed on the lower annulus frame. At this time, the outer periphery of the inner lid 20, that is, the packing 24 of the rubber and resin material is fitted along the edge. In addition, in the center of the inner lid is formed with a concave recess 22 formed in a predetermined diameter downwardly has a space portion 23 while the upper portion of the frame 10 to press the inner lid down While the inner lid 20 and the lower ring 18 has a close contact means to be in close contact. That is, the ring 14 is placed on the inner side of the frame 10 and the ring 26 is attached to the upper surface of the inner lid, and then the turnbuckle 28 has a left screw and a right screw between the two hooks 14 and 26. (turnbuckle). The turnbuckles 28 may be effectively formed on both sides corresponding to each other or attached to about 3-8 degrees radially.

Then, the locking device 30 is provided so as to prevent the rotation of the turnbuckle 28 to open the inner lid arbitrarily. The locking device 30 is connected to the body 32 of the turnbuckle 28 and then attach the assembly piece 34 to the outer end thereof, the bracket 36 on the upper portion of the inner lid 20 below Attach. At this time, as the hole is formed in the center of the assembly piece 34 and the bracket 36, it can be locked as a key through the hole.

Referring to the use state of the present invention configured as described above are as follows.

First, the inner lid 20 is placed on the lower annulus 18 of the frame 10, and then the turnbuckles 28 are mounted between the rings 14 and 26. Since the turnbuckles are rotated so as to spread outwards on both sides of the turnbuckles, the turnbuckles push down the inner inner lid 20 while the inner lid 20 is tightly attached to the lower annulus 18 below. Therefore, the inside of the manhole is sealed by the compressed packing 24 and at the same time the external water does not penetrate into the manhole. After closing the lid 12 is to be terminated, when opening the lid for work by opening the lid 12 and the inner lid 20 by the reverse procedure of the above, the worker can enter.

On the other hand, the moisture is introduced into the gap of the upper lid 12 or the moisture is accumulated in the indentation groove 22 formed in the center of the inner lid 20 while preventing moisture from gathering around the packing and improving the waterproof effect. And water accumulated in the inlet groove 22 can be pumped using a pump or a container.

As described above, the waterproofing device in the manhole according to the present invention is completely blocked not only water but also moisture inside the manhole, while protecting the facilities inside, preventing the risk of various short circuits and short circuits, It will have the effect of preventing corrosion.

Claims (4)

In the manhole which is opened and closed while the lid 12 is placed over the upper annulus of the frame 10; A lower annulus frame 18 protruding inward to a lower portion of the frame 10; An inner lid 20 seated above the lower annulus and having a packing 24 fitted along an edge thereof; The inner lid 20 is a waterproof device inside the manhole, characterized in that the contact means for applying a pressure to be in close contact with the lower ring frame (18) below. According to claim 1, wherein the inner cover of the manhole, characterized in that the recessed groove 22 is formed in the center of the inner cover (20). According to claim 1, wherein the contact means as a waterproof device inside the manhole, characterized in that the turnbuckle (28) is provided on the inner surface of the frame (10) and the upper surface of the inner lid. The waterproof device of claim 1, wherein the turnbuckle is provided with a locking device.