KR100473047B1 - Cam mounting manhole cover locking device and its manufacturing method. - Google Patents

Abstract

The present invention relates to a fixed locking device for fixing a lid to a manhole installed on the road to inspect or clean the facilities buried in the ground such as water and sewage pipes, electricity, communication cables, gas pipes, and flanges for the locking shaft connected to the handle of the manhole cover "Cam-mounted menhole cover lock" that secures the manhole cover against the bottom.

Put the locking handle on the manhole cover and put the handle vertically, and the locking center axis will move downward by the action of the cam. "do.

In this state, turn the handle 90 ° and lay it down so that the locking center shaft is pressed against the bottom of the flange and the manhole cover is fixed to the flange. " "Cam-mounted manhole cover lock" locks in place.

Description

Cam mounting manhole cover locking device and manufacturing method thereof. {Omitted}

Conventional manholes have a lot of confusion when they are managed because the locking is not constant even if the lid is placed or locked, because the locking is not constant, and the standardized method introduces a cam device that can be easily integrated and standardized. It's a device that was developed based on the need to do it the way it was.

The main technology of the present invention is to produce a manhole cover in various ways and to lock it in a variety of ways, but as the vehicle passes, the lid is shifted and noises and impacts occur frequently, so that the road surface or the vehicle may be damaged frequently. The present invention relates to a locking device of a manhole cover that mounts a cam device on a part of the lid so as to introduce a device so as to bear any impact, thereby preventing noise and impact.

Locking shafts (5, 17) on both sides of the lid raising plate (11) on the top of the manhole inner tube (19) with a locking device to lock the caps (12, 13) used as a cover of various large and small manholes to be in close contact with the manholes. Insert into the place where the part is allowed to pass, and turn it so that the lock shafts (5, 17) are hooked up and down on the bottom of the lift plate (11), locked and opened, and the manhole cover (12, 13) is operated. ) The shafts 5 and 17 attached to the caps 12 and 13 with the cams 8 and 8a by attaching the cam device boxes 3 and 10 to one place on the bottom of the inner tube 19 raise plate 11. When the handles (1. 6, 14) are raised, one cam (8) is caught on the box (3, 10) top plate, and the shaft (5, 17) is pushed down to be released. When 1, 7 is pushed to the side, the main cam 8 is lying down and the other cam 8a is erected downwards so that the shafts 5 and 17 are raised and locked. Therefore, when the handles (1, 6, 14) are erected, the vehicle traffic is impeded and the manhole is open, of course, the vehicle must not pass, and when the handles (1, 7) are pressed, the vehicle can pass safely. .

Since the locking mechanism of the manhole cover locking device is a cam, the locking shaft can be in close contact, so that even if the impact is severe, the lid is not pushed out or there is no gap, and the rubber plate is installed to obtain the insect repellent, dustproof, and waterproof effect.

1 is a perspective view of the present invention when the handle is attached to the cam

Figure 2. The present invention is a perspective view when lying on the handle attached to the cam

Figure 3 is a side view of the cam up and down repeat operation

4. The present invention is a plan view of the cam up and down repeat operation

5. The present invention is a perspective view of the flange is laid on the upper portion of the manhole inner tube

6. The present invention is a perspective view of the cam handle is mounted on the manhole cover

Figure 7 is an assembly view of the entire manhole

<Description of Major Symbols in Drawing>

1: cam handle

2: space where the cam came down

3: cam box

4: space where the cam is raised

5: manhole locking shaft

6: upright handle

7: lowered handle

8: loose cam

9: space by cam

10: two cam device with the handle raised and lowered

11: lid lift plate

12: Cam device lid

13: side cover

14: raised handle

15: rubber plate,

16: side up the lid lift plate

17: side locking axis

18: appearance of manhole (inclined staircase),

19: manhole inner tube

20: Cam unlocked because the lock shaft is lowered by raising the handle

21: Cam box top to dedicate the cam to loosen the shaft

Claims (2)

In the center of the caps 12 and 13 to be mounted on the lifting plate 11 attached to the upper part of the manhole inner tube 19, the cam device boxes 3 and 10 with the cams 8 and 8a are mounted, and the handles 1 and 6 are mounted. , 14), the cam 8 is caught on the top of the boxes 3, 10 and the shafts 5, 17 are released and the handles 1, 7, and the other cam 8a bottoms out of the boxes 3, 10. Cam-mounted manhole cover lock , characterized by the shafts (5, 17) being attached to the bottom of the elevating plate (11) to lock the lids (12, 13) The cams 8, 8a are mounted in the center of the top cover 12, 13 of the manhole inner tube 19, and the handles 1, 6, 14 of the cam device boxes 3, 10 are erected. , 10) When the shaft (5, 17) is hung on the top plate and the handles (1, 7,) are pressed, the other cam (8a) is pushed to the bottom of the box (3, 10) and the shaft (5, 17) is the lifting plate (11). ) Method of manufacturing cam-mounted manhole cover locking device , which is attached to the bottom and the lids 12 and 13 are locked