KR200156746Y1 - A inner cover's structure of a manhole - Google Patents

Abstract

This design consists of two left and right stone pieces hanging on the inner surface of the manhole frame to fit the left and right bite jaws of the locks, and form inward curved edges at the bottom to install ring-shaped rubber packing on the upper surface of the flange of the tray-shaped inner lid. Cover on the rubber packing, squeeze the left and right jaws of the lock on the left and right sides, and turn the operating lever to the right side to lie down. It can be sealed and prevents the eccentric cam from pressurizing the center rotor when it is flipped by raising the operating lever, so the inner lid is open easily. .

Description

Manhole waterproof lid

Even if rainwater enters the manhole, it has not been prevented, and even if an accident occurs due to gas leakage through the lid gap of the manhole of the gas pump, the technology to prevent this has not been developed. The sealing device such as the inner lid to prevent was desired.

It is a task to form an inner lid that can be easily locked and opened by constructing an inner lid that can be completely sealed to prevent intrusion of water and leaking gas into the manhole lid.

1 is a perspective view showing the lock of the lid

2 is a perspective view showing the inner lid of the lid

FIG. 3 is a longitudinal sectional view of the cap with the lid closed on the manhole frame and locked with a fastener

4 is a plan view of the manhole frame improved to install the cover of the present

* Explanation of symbols for main parts of the drawings

1: base plate 2: main wall

3: flange 4: center spin

5: handle 6: safety valve

7: locking stand 8, 8 ': bite jaw

9, 9 ': Bracket 10: Eccentric Cap

11: operation lever 12: pin

13: manholete 14, 15: stone

16: introvert 17: rubber packing

A. Configuration

In order to prevent water from penetrating into the manhole, various types of designs have been devised, but Applicant's Utility Model Registration No. 97-3196 of the applicant has installed a mote (7) as a bowl and covers the inner lid of the manhole. It is good, but there is a burden of making a mote, and the operation of fixing it to the manhole frame has a point of correction that delays the inner lid construction. Thus, the present invention omits such a mote and forms a stone piece or inward curved edge to seal the inner lid on the manhole frame. It has succeeded in constructing an inner lid that prevents time loss, is easy to lock, and easy to open, and can provide a sophisticated inner lid with only the lumbar portion of the lumbar portion.

In other words, in forming a large tray-shaped steel sheet inner lid, a flange 3 is formed on the upper end of the main wall 2 having the flat base 1 extended upward, and a short axis is formed in the center of the base 1. Establish and install a central projection (4) formed by covering the cylindrical cap, and installed a ring-shaped handle (5) on the left and right, and installed a safety valve (6) next to it, and at the front and rear end of the lock (7) 8) (8 ') and the center of the eccentric cap (10) by inserting the operating lever (11) formed by dividing the center into the left and right side rackets (9, 9') between the eccentric cap (10) When the operating lever 11 is laid on the right side with the pin 12 at the eccentric point, the tip of the eccentric cap 10 is projected downward, and when the virtual line is displayed, the lower end of the eccentric cap 10 is negative. Assembled in a structure that is immersed between the rackets (9) (9 ').

The manhole frame (13) has become an inner wall of shame, but in the present invention, the ridges (14) and (15) are roughly inclined at both points on the diameter line of the middle wall of the main wall as shown in FIG. (16) protruding into an annular shape, digging into the upper surface of the annular inwardly curved edge (16) into an annular shape and fitting the rubber packing (17) of the cross-sectional shape as shown in FIG. will be.

B. Operation

As shown in FIG. 3, the manhole frame 13 is embedded at the inlet of the manhole, and the flange 3 of the inner lid is covered on the rubber packing 17, and the squeezing jaws 8 and 8 'of the lock 7 are left and right. When the bite 14, 15 is bitten as shown in FIG. 3 and the operation lever 11 is laid on the right side, the flange 3 is ring-shaped because the lower end of the eccentric cap 10 protrudes downward while pressing down the upper surface of the center protrusion 4. The rubber packing 17 is strongly pressed to seal the water or gas from leaking.

If the operating lever 11 is raised as shown in Fig. 1, the pressure of pressing the upper surface of the center protrusion 4 is released while the lower end of the single-sided cam 10 is immersed between the brackets 9 and 9 '. It acts to lift the inner lid lightly.

As shown in FIG. 3, the flange 3 of the inner lid is seated on the upper surface of the annular rubber packing 17, and the left and right bite jaws 8, 8 'are fastened to the claw pieces 14 and 15. Since the lower end of the eccentric cap 10 presses the center protrusion 4 on the lower surface of the eccentric cap 10, the flange 3 is in close contact with the rubber packing 17, thereby preventing water from leaking and preventing gas leakage. When immersing the lower end of the eccentric cap 10 between the bracket (9) (9 ') by causing the lock is released, it is extremely easy to open the inner lid by grabbing the handle (5) (5').

In other words, the inner lid is completely closed and easy to open, so it is possible to completely prevent water intrusion or gas leakage into the manhole, and the construction is also an advantageous lid that makes the construction extremely easy.

The object of the present invention is to provide an inner lid that can be completely sealed, easy to lock, and easy to open so as to prevent the danger of rain leaking into the manhole and the leakage of gas into the manhole.

Claims (1)

Protruding the stone pieces 14, 15 on the inner surface of the middle of the manhole frame 13, and forming an inwardly curved edge 16 in an annular shape at the lower end to form a groove in the upper surface thereof and fitting the rubber packing 17 thereto. In the waterproof inner lid of the manhole seating the inner lid on the upper side of the inwardly curved edge 16 and the locking piece (7) supporting both ends on the stone pieces (14, 15) to hermetically seal the inner lid. The inner lid forms a flange (3) at the end of the main wall (2) upwardly expanded of the bottom plate (1) and installs a central protrusion (4), a handle (5) and a safety valve (6), and the lock (7) ) Forms the bite jaw (8) (8 ') at both ends, and the racquet (9) (9') on both sides of the center to form an eccentric cam (10) at the bottom of the operating lever (11) between them. It is inserted into the pin 12, and the groove formed on the upper surface of the inwardly curved edge is formed in the upper and lower beam type and the rubber packing corresponding to the cross section has the same shape as the groove. Water-proof in the lid of a manhole, characterized in that that generated.