KR20010067025A - A manhole formed connecting tool for preventing of cover separating - Google Patents

Abstract

PURPOSE: A steel liner is provided to promptly and completely open and close by offering the steel liner having a hanging groove with an inclined face settled along a hanging protrusion by tare and a fulcrum containing plural protrusions. CONSTITUTION: In case of opening a manhole cover(10), a steel liner top rises up and is open during a slant face(14) rotates upon turning of an opening instrument inserted to an opening instrument insertion hole. On outer circumference of a height adjustment ring, plural hanging grooves(12) are defined and on inner circumference, a hanging protrusion(22) and a mounting sill(24) are formed. Further opening of a manhole cover is available in the same method. By the steel opening manhole cover formed with a hanging groove for separation, a complete combination is enabled in construction so shaking and separation are avoided to prevent an accident.

Description

A manhole formed connecting tool for preventing of cover separating}

The present invention relates to a reinforcement buried at a predetermined depth in a certain place for the maintenance and repair of water or other conduits buried underground, in particular, a lid formed with a plurality of locking grooves having a downward slope as an outer peripheral surface at equal intervals The locking projections are formed on the inner circumferential surface of the pedestal so that they are rotated and caught by their own weight so as not to be separated or rocked.

Conventional towing is molded by using cast iron, etc. In the field installation, the pedestal consisting of a wall is embedded in the ground, and then the lid is covered on the top opening of the pedestal exposed to the ground. It does not have a separate fixing means in a state placed on the formed mounting step.

However, these retractable lids are rattled or dislodged by external shocks caused by human walking or vehicle traffic, resulting in safety accidents and loss of life and property. Difficulties in maintenance due to problems such as road breakage due to the separation and flow of the height adjustment ring.In case there is no opening / closing operation of the lid for a long time, many foreign substances are caught between the pedestal and the lid, making it difficult to open and close the pipe. In order to check the direction and diameter of the pipes, one must check the drawings, which is a problem that it is difficult to respond quickly if an emergency recovery is required due to leakage.

The present invention has been made in order to solve the above-mentioned problems, the object of the present invention is a pedestal formed with a plurality of locking projections to the outer peripheral surface and the locking groove formed by the inclined surface rotated along the locking projections by its own weight The branches are provided with a torch to open and close quickly and completely.

1 is an exploded perspective view according to an embodiment of the present invention.

2 is a side view according to an embodiment of the present invention.

3 is a plan view according to an embodiment of the present invention.

Figure 4 is a bottom view of the retraction cap of the present invention.

5 is a cross-sectional view A-A of the lid of the present invention.

Figure 6 is an exploded perspective view according to another embodiment of the present invention.

7 is a state diagram used in the present invention.

Explanation of symbols on the main parts of the drawing

10: lid 12: locking groove

14: inclined surface 16: pipe direction display unit

18: diameter display portion 20: pedestal

22: jamming protrusion 24: wit step

30: height adjustment ring

Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention. First, in describing each of the drawings, the same components have the same reference numerals as much as possible even though they are shown in different drawings.

As shown in Figures 1 to 5, the structure of the present invention retracted, the disk-shaped lid 10 and the lid 10 is formed with a plurality of locking grooves 12 having a lower inclined surface 14 formed on the outer peripheral surface at equal intervals An opening circumscribed to the upper surface is formed in the upper surface of the upper end of the engaging projection 22 corresponding to the locking groove 12 is projected to a predetermined height and the closing step 24 which the bottom surface is in contact with the lid 10 when closing It is composed of a pedestal 20 formed to a predetermined height.

The lower end of the inclined surface 14 is opened so that the locking protrusion 22 can be inserted into the locking groove 12.

The upper surface of the lid 10 is formed with a pipe direction direction display unit 16 and a pipe diameter display unit 18 to display the direction and the diameter of the pipe line, if the emergency recovery due to the breakage or rupture of the pipe is necessary, without coping with the drawings Can be enabled.

In this case, the opening and closing tool insertion hole 19 is provided at the center of the upper surface of the lid 10 to open and close the lid 10.

As shown in FIG. 7, when the locking groove is formed to prevent the release of the present invention, the opening of the inclined surface 14 of the locking groove 12 formed in the lid 10 is formed at the upper end of the pedestal 20 when the lid is to be closed. The lid 10 is rotated along the inclined surface 14 placed on the locking projection 22 by its own weight when the locking projection 22 is mounted on the locking projection 22, and the opening and closing tool fitted to the opening and closing tool insertion hole 19 is used. By further turning in the closing direction, a complete closure is achieved.

The retractable lid 10 seated by the above method is rocked in the external impact due to the passage of the vehicle or the walking of the people by the insertion of the locking protrusion 22 of the pedestal 20 into the locking groove 12 formed as the outer circumferential surface. By maintaining the closed state without this, there is no fear of departure or damage.

On the contrary, when the lid 10 is to be opened, turning the opening and closing tool inserted into the opening and closing tool insertion hole 19 in the opposite direction causes the deceleration lid 10 to rise while the inclined surface 14 is rotated along the locking projection 22. To be open.

Of course, the pipe direction display unit 16 and the diameter display unit 18 formed on the upper surface of the retractable lid 10 according to the present invention may be selectively adopted by those skilled in the art, but this is also included in the scope of the technical idea according to the present invention. You will have to look.

According to another embodiment of the present invention, as shown in FIG. 6 further increases the height adjustment ring 30 for adjusting the height of the cap lid 10 as the road surface is raised or lowered by the repair or overlay of the road, etc. Include.

At this time, as the outer peripheral surface of the lower end portion of the height adjustment ring 30 inserted into the pedestal 20, a plurality of locking grooves 12` having an inclined surface 14` are formed and the upper portion inner peripheral surface of the upper lid 10 is inserted. The locking protrusion 22` and the mounting step 24` are formed to be opened and closed in the same manner as the manhole cover, and also to open and close the lid 10 in the same manner.

As described above, according to the withdrawal of the locking groove formed to prevent the release of the present invention, it is possible to prevent the occurrence of a safety accident by preventing the fluctuation and departure due to the passage of the vehicle or the walking of people by making a perfect coupling during construction.

As described above, the present invention has the advantage of preventing safety accidents due to the departure of the withdrawal and preventing noise caused by the fluctuation of the withdrawal to prevent the occurrence of civil complaints, there is no fear of damage and to check the drawings during emergency repair By reducing the effort, the maintenance budget can be reduced.

Claims (3)

In an iron ore to be buried at a predetermined depth in a certain place for maintenance and repair of a constant or other conduit buried underground, a plurality of locking grooves 12 having a lower inclined surface 14 opened to an outer circumferential surface are spaced at equal intervals. When the cover 10 and the upper surface is formed with an opening that is external to the lid 10 and the upper surface of the upper end of the engaging projection 22 corresponding to the locking groove 12 is formed at a predetermined height when closing Manhole formed with a fastener for preventing separation, characterized in that consisting of a pedestal 20 is formed with a predetermined height of the mounting step 24 to the bottom surface in contact with the lid (10). The manhole according to claim 1, wherein the upper surface of the lid (10) is provided with a pipe direction indication part (16), a diameter indication part (18), and an opening / closing tool insertion hole (19). A plurality of locking grooves (12 ') having a plurality of locking projections (22`) is formed on the upper inner peripheral surface and the inclined surface 14` open to the lower outer peripheral surface. Manhole formed with a fastener for preventing separation, characterized in that the height adjustment ring 30 is further included.