JP2502347Y2 - Vent hole lid frame structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid frame structure for ventilation holes such as water and sewer installed in the ground.

[0002]

2. Description of the Related Art Conventionally, water and sewage and the like provided in the ground include those constructed by pipes, and those which are isolated from the outside by attaching a shielding plate to the upper part of a water channel that opens upwards.
These have ventilation holes and inspection holes above. Usually, the ventilation hole (and the inspection hole) is formed by a concrete wall, and the ventilation hole is covered with a lid.

The inlet portion of the above-mentioned ventilation hole will be described with reference to FIG. 8. The ventilation hole 2 opened on the road on the upper surface of the concrete wall 1 has a stepped portion 4 on the periphery so that the lid 3 can be placed. The frame 5 having an L-shaped cross section formed of hard plastic or the like is attached to the step portion 4. Some lids 3 are formed of steel on the outer circumference to prevent the edges from being broken.

In order to form the ventilation hole 2, either a cylindrical one is used, or a plurality of plates are connected in an annular shape for installation. In any case, the frame body 5 is integrally formed when the concrete wall material is manufactured. The frame body 5 is fixed, for example, by providing a wing plate 6 on the frame body 5 and embedding it in concrete.

[0005]

However, since the method of attaching the step portion 4 and the frame body 5 is integrated at the time of molding of concrete, if this method is carried out at the installation site, the working time will be greatly consumed. . Also, even if it is manufactured in advance, it is necessary to prepare and place several sizes according to the standard.

It is an object of the present invention to provide a lid frame structure of a ventilation hole that allows the frame body to be quickly attached to any place.

[0007]

SUMMARY OF THE INVENTION The present invention to achieve the above object, one step at the top of the opening inner peripheral edge of the vent hole to contact the road surface and canals of the lower, in order to place the lid Low
In the lid frame structure of the ventilation hole in which the step portion is formed , the step portion
It is fixed at multiple points on the
A plurality of guide plates formed, along the surface of the guide plate
The surface member having an L-shaped cross section is provided with an upper end of the surface member.
And the inner and upper edges of the guide plate
The frame body of the lid frame is constructed by connecting it through the folded portion that slides on the side edge.
It is characterized in that form. Also, in the above configuration,
It is characterized in that a flange is provided on the upper end of the surface member toward the inside.
I do.

[0008]

Since the present invention is constructed as described above, the guide plate is fixed to the wall block forming the ventilation hole that opens to the road surface, and this wall block is transported to the site to form the ventilation hole. when the guide plate is Ru are disposed on the periphery of the vent hole. In this state, one of the surface members of appropriate length
Insert the end into the guide plate through the folded part and
Open the other end of this surface member on another guide plate.
Insert it and attach the surface member to the step. Also, the guide plate
Connect another surface member to the other end of the
The surface member. In this way, various sizes
The surface member can be arranged on the periphery of the ventilation hole. Ma
Also, a surface member with a brim is formed on part of the periphery of the ventilation hole.
By doing so, when the lid is lifted due to a flood, etc.
Since it hits the brim, prevent the lid from coming off the vent.
I have.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 to 3, the upper end opening of the concrete wall 1 forming the rectangular ventilation hole 2 is a step 4
The lid body 3 is fitted with the lid body 3.

A guide plate 5 having an L-shaped cross section is arranged at a major part of the step portion 4, and the guide plate 5 is fixed by a fixing means provided on the back side thereof. In this embodiment, the fixing means is fixed to the bracket 7 formed on the back side of the guide plate 5 with concrete through bolts 8. L-shaped moth
Concrete is scraped off at the upper end and the inner end of the id plate 5 . Further, corner guide plates 9 are attached to the four corners of the upper end opening and are installed on the extension of the guide plate 5 and similarly fixed to the concrete wall 1 with bolts 8. With this structure, for example, the concrete wall 1 forming the ventilation hole 2 can be divided into four wall blocks and firmly molded in a production factory.

Then, along the surface of the L-shaped guide plate 5,
The upper end of the surface member 10 having a substantially L-shaped cross-section manufactured as described above.
And the inner edge surrounds the upper and inner edges of the guide plate 5.
The folded back portion 10a is formed. Each surface member 10
Prepare by cutting to the length of the frame of the seed size vent hole 2
Can be.

Therefore, the guide plate 5 and the corner guide plate 9 are fixed to the main part of the concrete wall 1 and the ventilation holes 2 are provided.
Then, the length of the surface member 10 is determined according to the length between the two corner guide plates 9, and the surface member 10 is fitted into the guide plate 5 to easily cover the lid body 3.
The frame to be fitted with is assembled.

Next, as the lid 3 which can be easily removed from the rectangular frame, as shown in FIGS. 4 and 5, the surface member 10 or the corner guide plate 9 is provided with the collars 9a and 10b. There is. According to this structure, it is possible to prevent the lid body 3 from floating when the sewer flows backward due to a flood or the like.

Further, in FIG. 6, when the surface member 10 is installed, the opposite sides of the two surface members 10 are diagonally cut at the corners to form a frame body. In FIG. The corner guide plate 9 is shown.

[0015]

[Effect of the Invention] Since the present invention is configured as described above, the concrete wall forming the ventilation hole must be preliminarily set in advance.
Since the guide plate is firmly attached and the surface member is attached to the guide plate on site, the work of attaching the lid frame is simplified, the work efficiency is increased, and the finishing accuracy and strength are improved. Also, the length of the surface member can be easily changed.
It can be adapted to various sizes of ventilation holes. Also, on the surface member
By forming the tsuba, you can easily use the lid without using other parts.
It is possible to prevent disconnection and reduce costs.
it can.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a lid frame structure of a vent according to an embodiment of the present invention.

FIG. 2 is a perspective view of the lid frame structure shown in FIG.

3 is a perspective view showing the structure of the frame body shown in FIG. 1. FIG.

FIG. 4 is a perspective view showing the structure of another frame of the embodiment.

FIG. 5 is a perspective view showing a mounted state of a corner.

FIG. 6 is a perspective view showing a mounted state of a corner.

FIG. 7 is a perspective view of a corner guide plate.

FIG. 8 is a side sectional view of a conventional lid frame structure.

[Explanation of symbols]

 2 Vent hole 3 Lid body 4 Step part 5 Guide plate 7 Fixing means 10 Surface member 10a Folded part

Claims (2)

(57) [Scope of utility model registration request] 1. A step for mounting a lid on an inner peripheral edge of an opening at an upper part of a ventilation hole which connects a road surface and a water channel below the road surface.
To form a lower stepped portion, the lid frame structure vents, stepped
It is fixed to multiple points of the section, and has an L-shaped cross section that follows the step section.
Along the surface of the guide plate on the formed multiple guide plates
A surface member formed in a substantially L-shaped cross section is placed on the surface member.
The upper end of the guide plate formed at the end and the inner end and
The lid frame is connected by connecting it through the folded part that slides on the inner edge.
Vent hole lid frame structure characterized by being configured . 2. A flange is provided at the upper end of the surface member toward the inside.
The lid frame structure for a vent according to claim 1, wherein