KR200216358Y1 - Inner cover device with locking means for use in manhole - Google Patents

Abstract

The present invention relates to an improvement of a manhole, and more particularly, to an inner lid device of a manhole having a locking means designed to further increase the safety and security of the manhole by providing an inner lid device having a locking means inside the manhole frame. .

According to the present invention, the manhole frame 10 includes a manhole cover 10 and a manhole cover 20 that is installed by being covered inside the upper end portion of the mandrel frame 11 of the manhole frame 10. The inner lid support part 12 is formed inside the cover), and the manhole cover 30 is detachably installed thereon. The manhole cover 30 has an inner cover part on the side of the manhole frame 10. It provides a mandrel cover device of the manhole with a locking means characterized in that by installing a locking device (40) comprising a locking clamp (45) and a latch 46 in cooperation with 12).

Description

Manhole cover device with locking means {INNER COVER DEVICE WITH LOCKING MEANS FOR USE IN MANHOLE}

The present invention relates to an improvement of a manhole, and more particularly, to an inner lid device of a manhole having a locking means capable of further increasing the safety and security of the manhole by providing an inner lid having a locking device for a manhole frame. will be.

The manhole related to the present invention is used to be installed on a road or a sidewalk to serve as an entrance to an underground facility. In the related art, the manhole is generally detachably coupled to one manhole cover inside the upper end of the manhole frame. Opening the manhole cover opens the passage to the underground facility. 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 have been frequent problems that cause safety accidents.

Accordingly, the present invention aims to effectively solve the above-mentioned problems by providing an inner lid apparatus of the manhole having a locking means capable of keeping the inner manhole passage still stable when the manhole cover is opened. It was created.

1 is an exploded perspective view of a manhole to which the present invention is applied;

Figure 2 is a bottom perspective view of the manhole frame is installed manhole cover of the present invention,

Figure 3 is a bottom perspective view of the manhole cover according to the present invention,

4 is a plan view sequentially showing the configuration and operation of the locking device installed in the lid of the manhole of FIG.

5 is a perspective view sequentially showing the configuration and operation of the locking device.

Explanation of symbols on the main parts of the drawings

10: manhole frame 11: lid support 12: inner lid support

20: manhole cover 30: manhole cover 31: insertion hole

32: cover 40: locking device 41: support case

42: operating shaft 43: lever 44: operating pin

45: clasp 45a, 45b: slits 46: clasp

50: operating rod

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 coupled to the installation possible, the manhole cover is provided with a locking device for cooperating with the inner lid support portion of the manhole frame side to enable the selection of the locking operation or unlocking operation of the manhole cover for the manhole frame It is achieved by providing an inner lid device of the manhole having a locking means, characterized in that configured.

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

As illustrated in FIG. 1 and FIG. 2, the present invention has a manhole frame 10 fixedly installed near an indicator such as a road or a sidewalk and has a manhole passage therein, and a lid support portion of the manhole frame 10. 11) In the manhole comprising a manhole cover 20 that is detachably coupled to the inside of the upper end, the inner cover portion 12 is formed in the inner place of the manhole frame 10 to form the inner lid The manhole cover 30 is detachably installed and installed on the support part 12, and the manhole cover 30 cooperates with the inside cover part 12 of the manhole frame 10 to cooperate with the manhole frame 10. The inner lid of the manhole with locking means, characterized in that it is provided with a locking device 40 for enabling the selection of the locking operation or the unlocking operation of the manhole inner lid 30 to (10). Provide the device.

In the illustrated embodiment, the locking device 40 is rotated to one side or the other side by inserting a specific locking / unlocking operation rod 50 into the insertion hole 31 of the manhole lid 30. An operating shaft 42 installed at the bottom of the manhole lid 30 through a support case 41 and a lever installed integrally with the operating shaft 42 and protruding the operating pin 44 at the front end thereof ( 43 and the slits 45a and 45b in which the working shaft 42 and the working pin 44 are embedded are formed at one side and the other side of the body, respectively, and the operating shaft 42 and the lever 43 are rotated. In accordance with the operation of the operation pin 44 according to the movement to the locked position or the unlocked position to take the manhole lid 30 in the locked state for the inner lid support 12 of the manhole frame 10 side or Clamp 45 provided inside the support case 41 and a position different from the catch 45 so as to be brought into the unlocked state. It has a structure comprising a brace (46) provided fixedly on a lower surface of the manhole in the lid (30).

Reference numeral 32 in the drawing is a cover installed on the lid 30 in the manhole so as to cover the operation rod insertion hole 31.

In operation, Figures 1 and 2 show the state in which the manhole cover 30 is closed on the inner lid support 12 inside the manhole frame 10 and locked, and in this state the manhole cover outside. Even if opening 20, the manhole passage inside the manhole frame 10 is still stably closed by the manhole cover 30, and thus cannot be arbitrarily entered into the manhole passage, thus safety or security of such manhole. This is even more guaranteed.

Furthermore, for example, in the case where the maintenance and repair of the underground facilities in which the manhole is installed is necessary, the related worker opens the manhole cover 20 and covers the cover 32 installed on the inner manhole cover 30 to one side. After exposing the insertion hole 31 and inserting the operating rod 50 into the insertion hole 31, the operating rod (as illustrated in FIGS. 4A, 4B and 5A, 5B, and 5C) is rotated. The operating shaft 42 is rotated to one side by 50), and the lever 43 which is installed to rotate integrally with the operating shaft 42 along the rotation of the operating shaft 42 also rotates in the same direction. While the front end of the operation pin 44 is pushed to move the clamping body 45 in the slit (45b) to the unlocking position as shown in Figures 4c and 5c by the fasteners (45) The locked state of the manhole cover 30 is released, thereby allowing the manhole cover 30 to be inserted into the manhole frame 10. It becomes possible to peel off from the lid support 12.

Therefore, the present invention is to provide a new useful effect that can greatly increase the safety or security of the installation and use for such a manhole by the above-described configuration, action.

Claims (2)

In a manhole comprising a manhole frame 10 and a manhole cover 20 detachably covered and installed inside the upper end of the manhole frame 10, The inner lid support 12 is formed on the inner side of the manhole frame 10 so that the manhole lid 30 is detachably coupled thereto, and the manhole lid 30 is provided on the side of the manhole frame 10. A configuration is provided by installing a locking device 40 that cooperates with the inner lid support 12 to allow the selection of the locking operation or the unlocking operation of the manhole inner lid 30 to the manhole frame 10. The inner lid device of the manhole having a locking means characterized in that. The operating shaft 42 of claim 1, wherein the locking device 40 is installed through the support case 41 at the bottom of the manhole cover 30 so that the locking device 40 can be rotated to one side or the other side by the operation rod 50. And a lever 43 installed so as to be integrally rotated with the operation shaft 42 and protruding the operation pin 44 at the front end thereof, and a sleeve in which the operation shaft 42 and the operation pin 44 are respectively embedded. And fasteners 45a and 45b formed on one side and the other side of the body and installed inside the support case 41 so as to move to a locked position or an unlocked position by interlocking with the operation pin 44. And a clasp (46) fixedly installed on a bottom surface of the manhole cover (30) at a different position from the clasp (45).