JPH0439912Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is an opening/closing lid that can be applied to various inspection holes such as road construction gutter covers, irrigation canal covers, indoor and outdoor inspection manhole covers, and sewage covers. can be opened easily,
To relate to a lock type gutter cover device which can be locked both automatically and manually when closed and ensure safety even under loaded loads.

[Conventional technology] Conventionally, the system was simply rotatable, or there were two methods for opening and closing.
It has a structure that allows people to squeeze it out, and like various manholes, special tools are used to open and close the lid.

[Problems to be solved by the invention] Many of the conventional lid devices used are grating type or iron plate lids, and snow drift grooves are built to immediately remove snowfall as a countermeasure against snow and cold in areas with heavy snowfall. However, these groove covers are difficult to pull up using a crowbar.
It requires the use of tools such as levers or the labor of two or more people. However, in the past, rather than the convenience of opening and closing the lid,
Emphasis was placed on the opening area for drifting snow and the splashing noise caused by passing cars, etc. Therefore, it is easy to open and close the gutter cover according to the required opening area, and it locks automatically when closed, making it safe. It is hoped that this will be possible.

[Means for solving the problems] In view of the above-mentioned circumstances, the present invention is designed to solve these problems by making it possible to open and close the lid relatively easily.
Moreover, it was invented with the aim of ensuring safety, with a balance weight on one end and a lid with automatic and manual locking means and a pull-up handle on the other end, with an inspection hole and This is a lock type groove cover device in which a sound-deadening rubber provided on the frame is inserted into the frame provided at a necessary position such as a side gutter, and the cover is rotatably supported on the balance weight side. A balance weight is placed on the forward rotation side of one end in the center, which reduces the pulling force and makes opening and closing easier.Also, when the lid is closed, it automatically locks, preventing the lid from bouncing due to passing vehicles, etc. This can be prevented and furthermore the noise can be muffled.

[Function] In the present invention, a balance weight 4 is disposed on one end of the lid body 2 fitted in a frame body 1 provided at a key position such as an inspection hole, a side gutter, or a drainage channel, on the forward rotation side, and a balance weight 4 is placed on the other end side. Automatic and manual locking means are provided and a handle 9 is attached.For example, to remove snowfall, the automatic and manual locking means are released and the lid 2 is pulled up using the handle, so that the lid 2 is centered on the shaft 3. At this time, a balance weight 4 corresponding to the required weight is arranged at one end of the normal rotation side of the lid body 2 with the axis 3 as a boundary to reduce the lifting force, making it easier to pull up the lid body 2. Further, when the lid 2 is closed, the lid 2 is locked by the automatic manual locking means, ensuring safety against the load of vehicles, etc., and a noise-reducing rubber 10 is provided between the frame 1 and the lid 2. It has a splash and soundproofing effect.

[Embodiment] Next, an embodiment of the lock type groove cover device according to the present invention will be described based on the drawings.

1 is a frame and is installed at important locations such as inspection holes, side gutters, and drainage channels. A grating-shaped lid 2, such as a grating type or iron lid, is fitted into the frame 1 and is supported on the frame 1 by a shaft 3 so as to rotate when the lid is pulled up. Lid body 2
A balance weight 4 made of lead or iron according to the required weight is arranged on one end of the forward rotation side, and a lock pin 6 that can be inserted into and removed from a locking hole 5 bored in the frame 1 is installed on the other end. A manual locking means that is movable from side to side and an automatic locking pin 8 that is rotatably supported in correspondence with a stopper piece 7 provided on the frame 1 are provided.
When the lock pin is closed, the lock pin swings and is locked to the stopper piece 7. A handle 9 for lifting is attached to the locking means side of the lid body 2. Reference numeral 10 is a sound-deadening rubber stretched over the frame 1. As shown in FIG. 4, the lid 2 may be rotated about the shaft 3 using a ratchet gear and a pawl (not shown) to be locked and fixed at a desired angle.

[Effects] As mentioned above, the present invention has a lid body with a balance weight on one end and automatic and manual locking means and a pull-up handle on the other end, which is installed in the necessary places such as inspection holes and side gutters. This is a lock type groove lid device in which a sound-deadening rubber is inserted into the frame provided at a key position, and the lid is rotatably supported on the balance weight side.
A balance weight is placed on the normal rotation side of one end of the lid to reduce the lifting force on the lid, allowing one person to easily open and close the lid without using any equipment.
In addition, by providing manual and automatic locking means, the lid can be automatically locked by closing it, and manual locking is also possible, making it safe against the load when passing vehicles. Using rubber between the bodies has the effect of muffling noise and preventing discomfort.

[Brief explanation of drawings]

The drawings show an embodiment of the lock type gutter cover device according to the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a vertical side view of the cover installed in the side gutter, and Fig. 3 is the same as Fig. 1. X
- An X-ray longitudinal cross-sectional front view, and FIG. 4 is a side view of another embodiment in which the lid is opened and locked at a desired angle. 1... Frame body, 2... Lid body, 3... Shaft, 4... Balance weight, 5... Locking hole, 6... Lock pin, 7... Stopper piece, 8... Automatic lock pin,
9...Handle, 10...Sound deadening rubber.

Claims (1)

[Scope of utility model registration request] A lid body with a balance weight on one end and automatic and manual locking means and a pull-up handle on the other end is installed in a frame body installed at necessary key positions such as inspection holes and side gutters. A lock-type groove lid device characterized in that a sound-deadening rubber provided on the groove is inserted and fitted, and the lid body is rotatably supported on the balance weight side.