JPS6346536Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) This invention relates to a drain cover that is installed on the top surface of a drain.

(Prior art and its problems) Conventionally, a cover is placed on the top of the drain to prevent accidents, but in this case, concrete covers are laid in rows, and cast iron lattice-shaped covers are placed at appropriate intervals. may be set. In the case of such conventional drain covers, there is no suitable means for connecting the concrete cover and the cast iron cover, so the lightweight cast iron cover does not absorb the impact force caused by cars passing over the cover. This was a problem as they could sometimes fall off the drainage ditch's mounting stage, or sometimes be stolen.

(Means for Solving the Problems) The present invention was devised in view of the above-mentioned conventional problems, and its purpose is to provide a cast iron drain cover that can be detachably connected to a concrete cover. The gist is that a storage member is provided below the side edge of the lid body, a locking member that can slide inside the storage member is inserted, and the locking member is slidably moved. By doing so, the locking piece protruding from the free end side of the locking member can protrude and retract outward from the side edge of the lid body.

(Function) Since the locking member can slide inside the storage member provided below the side edge of the lid body, if the locking member is slidably moved by an appropriate external means, the locking member can be slid along with the sliding movement. The locking piece on the free end side of the locking member then extends outward from the side edge of the lid body. For this reason, this locking piece is located on the underside of the adjacent concrete lid placed over the drain, and even if you try to remove the lid body upward, the locking piece will come into contact with the underside of the heavy concrete lid. This makes it impossible to remove the lid body. Conversely, when the locking piece is moved to the retracted state, only the lid body can be removed without the locking piece and the concrete lid coming into contact with each other.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is a plan view of the drainage ditch cover of this example, FIG. 2 is a front half-sectional view thereof, and FIG. 3 is a left side view thereof. In the figure, a lid body 1 made of cast iron and formed in a lattice shape has legs 1a, 1a integrally formed below its longitudinal edge.

On the other hand, a prismatic storage member 2 is fixed at the center of the lower surface of the widthwise edge of the lid body 1 along the edge. The structure of this storage member 2 will be explained by enlarging it in FIG. 4A.
A circular through hole 2b is bored in the center of the housing member 2 along the longitudinal direction thereof. This through hole 2b
The groove 2c opens laterally through the groove 2c, and the groove 2c is provided downward at about the left half of the figure.
In the central part of the figure, the groove part 2c moves to the inner side surface 2a in a direction perpendicular to the lower surface and is inclined upward, and in the right part of the figure, the groove part 2c is provided along the upper edge of the inner side surface 2a.

A base portion 3a of the locking member 3 shown in FIG. 4B is fitted into the through hole 2b, and the base portion 3a can slide within the through hole 2b. Further, an L-shaped rod member B is connected to the base 3a of the locking member 3, and the tip thereof forms a locking portion 3b.

When the base 3a is inserted into the through hole 2b and slides, the rod-shaped member B moves along the groove 2c. That is, when the base portion 3a is moved from the left side to the right side in the figure, the rod-shaped member B rotates from the hanging state toward the inner surface 2a at the center of the storage member 2, and further moves toward the upper edge of the inner surface 2a. will be moved to.
In this case, the locking piece 3b is in a state of protruding from below the side edge of the lid main body 1 to the outside of the side edge while the rod-shaped member B is in the hanging state, and the rod-shaped member B is in a state of protruding outward from the side edge of the lid body 1. As it is rotated to the side, it is moved to the inside of the side edge of the lid main body 1. FIG. 5 shows this state.

That is, as shown in FIG.
is placed on the upper surface of the drain, and if the locking piece 3b protrudes outward from the side edge of the lid body 1, the locking piece 3b is located below the adjacent concrete lid, and the lid body 1 Even if an attempt is made to remove the lid upward, the locking piece 3b comes into contact with the lower surface of the concrete lid and cannot be removed.

In order to move the locking member 3 along the storage member 2, the locking member 3 can be easily locked by inserting a special hook-shaped metal fitting through the grid of the lid body 1 and hooking it on the rod-shaped member B of the locking member 3. The member 3 can be moved.

(Effects) In the present invention, a storage member is provided below the side edge of the lid body, and a locking member that can slide inside the storage member is inserted into the storage member. By moving the locking member, the locking piece protruding from the free end side of the locking member can be projected and retracted outward from the side edge of the lid body. Since the locking member can slide inside the housing member, if the locking member is slidably moved by an appropriate external means, the locking piece on the free end side of the locking member will move as the locking member slides. protrudes outward from the side edge of the lid body. For this reason, this locking piece is located on the underside of the adjacent concrete lid placed over the drain, and even if you try to remove the lid body upward, the locking piece will come into contact with the underside of the heavy concrete lid. , the lid body cannot be removed. On the other hand, when the locking piece is moved to the depressed state, only the lid body can be removed without the locking piece and the concrete lid coming into contact with each other, and the lid body can be easily attached to and removed from the concrete lid. Although it has a simple structure, it is highly effective in preventing theft and displacement of the cast iron drain cover.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a plan view of a drain cover, Fig. 2 is a half-sectional plan view of Fig. 1,
Figure 3 is a left side view of Figure 1, Figure 4 A is a perspective view of the storage member, Figure 4 B is a perspective view of the locking member, and Figure 5 shows the locking member inserted into the storage member. FIG. 6 is a perspective view showing a state in which the drainage ditch cover of this example is disposed in a drainage ditch. 1... Lid body, 2... Storage member, 3... Locking member, 3b... Locking piece.

Claims (1)

[Scope of utility model registration request] A storage member 2 is provided below the side edge of the lid body 1, and a locking member 3 that can be slid within the storage member 2 is fitted into the storage member 2, and the locking member 3 is slidably moved. A drain ditch lid characterized in that the locking piece 3b protruding from the free end side of the locking member 3 can protrude and retract outward from the side edge of the lid main body 1.