JP2807982B2 - Intermediate body for buried frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for stacking buried frames underground to form a fire hydrant box, a water control valve box, a manhole, etc. The present invention relates to an improvement of an interposer frame used for, for example, achieving the goal.

[0002]

2. Description of the Related Art Conventionally, as this kind of interposition frame, there is a frame shape as shown in FIGS. 4 and 5, for example.

[0003] That is, this conventional interposition frame 1a comprises a base frame 2a and a projecting frame 3a integrally connected to the inner peripheral side of the base frame 2a. Buried frame 5a
A mounting frame 1a is mounted on the upper surface of the mounting frame 1a, and a recess 7a formed in an annular shape on the lower surface of the upper-side burying frame 5a is fitted into the projecting frame 3a of the mounting frame 1a. Stacked.

[0004]

[0007] However, in the above conventional KaiSowaku 1a, the height h ₁ of the protruding frame member 3a is set smaller than the height h ₄ of the basic frame 2a I have. In other words, the intervening Sowaku 1a is the basic frame 2a height h ₄ somewhat thicker form, the use of the embedded frame 5a to the height adjustment when staked, height adjustment between the embedded frame 5a When the height is low, it cannot be used, and the inconvenience that it cannot cope with the construction accuracy (the total height of the buried frames 5a stacked) required recently has occurred.

Further, an external force from the lateral direction is applied to the buried frames 5a stacked one on another, and as a relatively large shearing force, the projecting frame 3
a, the projecting frame 3a and the base frame 2a
There is also a problem that the boundary portion is broken.

SUMMARY OF THE INVENTION Therefore, the present invention has been made to solve the above-mentioned conventional problems. The height between the buried frames can be adjusted with a small size, and the buried frames can be stably and firmly stacked. It is not intended to provide an intervening frame.

[0007]

That is, the present invention takes measures to solve the above-mentioned problems by using a base frame 2 and a projecting frame 3 integrally connected to the base frame 2. The outer diameter d of the projecting frame 3 is smaller than the outer diameter D of the base frame 2, and the heights H ₄ , H ₁ of the two frames 2, 3 are formed substantially the same, and in KaiSowaku that interposed, said to both frame members 2 and 3 are integrally connected by the connecting portion 4 of the thin-walled with a stepped coupling portion 4 and the height H ₁ of the projection frame 3 sum H ₃ between the height H ₂ of are in a point which is set larger than the height H ₄ of the basic frame 2.

[0008]

Therefore, the interposition frame characterized by the above-mentioned structure is interposed between the buried frames 5 to be stacked. In this case, the projecting frame 3 and the connecting portion 4 of the interposition frame are connected. A plurality of buried frames 5 are stacked by fitting into the concave portion provided on the lower surface of the buried frame 5 and the annular convex portion provided on the upper surface of the buried frame 5 in the lower stage. Thus, the sum H of the heights H ₁ and H ₂ of the projecting frame body 3 and the connecting portion 4 fitted into the recess of the embedded frame 5.
_3, since it is greater than the height H ₄ of the basic frame 2, the fitting state between the buried frame 5 and KaiSowaku 1 is made reliable.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an interposition frame composed of an annular base frame 2 and an annular projecting frame 3 provided on the base frame 2 with a step. The protruding frame 3 is integrally connected to the inner peripheral upper end edge of the base frame 2 via a thin connecting portion 4 extending in an inclined manner, and is connected to the back of the base frame 2 and the protruding frame 3. A plurality of arc-shaped concave grooves 2a, 3a are formed in the circumferential direction to provide the concave-convex portions 12.

The material of the interposition body 1 is made of concrete, synthetic resin, metal, rubber or the like.
Is formed to have a smaller diameter than the outer diameter D of the base frame 2, the heights H ₄ , H _{1 of the} two frames 2, 3 are substantially the same, and the height H ₁ of the protruding frame 3 is equal to the height of the projecting frame 3. sum H ₃ between the height H ₂ of 4 is set to be larger than the height H ₄ of the basic frame 2.

The present embodiment has the above configuration.
As shown in FIG. 2, the interposed body 1 is used by being interposed between the cylindrical embedded frames 5. The embedded frames 5 are formed by projecting flanges 6 on upper and lower outer peripheral surfaces, respectively. An annular concave portion 7 is formed at the inner peripheral position on the lower surface side, and an annular convex portion 8 is formed at the inner peripheral position on the upper surface side.

Then, the buried frame 5 is stacked on the slab 9, and the interposition frame 1 and the buried frame 5 are stacked on the slab 9. In this case, embedded frame sum H ₃ of the protruding frame 3 and the connecting height of portion 4 H _1, H ₂ of KaiSowaku 1 to be fitted into the recess 7 of the 5, the height H ₄ of the basic frame 2 Since the height is set larger than that and the height is secured, the fitting with the concave portion 7 of the burying frame 5 and the annular convex portion 8 of the burying frame 5 at the lower stage can be surely performed, and the projecting frame 3 and the base Since the thickness of the frame 2 is smaller than the depth of the concave portion 7 and the height of the annular convex portion 8 of the embedded frame 5,
When the size of the concave portion 7 and the size of the annular convex portion 8 are small, there is an advantage that the height can be adjusted with a smaller size, which greatly contributes to the convenience of construction work.

Further, by securing the height in this way, even if an external force acts on the stacked buried frames 5 from the lateral direction, the recessed portions 7 of the buried frames 5 and the projecting frame 3 of the interposed frame 1 are provided. In addition, the fitting state with the connecting portion 4 is maintained well, and the annular convex portion 8 of the embedded frame 5 located at the lower level supports the lower surface of the projecting frame 3 of the interposition frame 1 and the inner surface of the connecting portion 4. Therefore, even if a large shear force acts, the interposition frame 1 does not break,
It has sufficient strength.

In the above embodiment, concave grooves 2a, 3a are formed on the back surfaces of the base frame 2 and the projecting frame 3 of the interposed frame 1 so that the interposed surface between the interposed frame 1 and the buried frame 5 is formed. Although the affinity is increased, the concave grooves 2a, 3a may be provided as needed, and may not be necessarily provided.

A projection 10 as shown in FIG. 3 is provided on the upper or lower surface of the base frame 2 and the projecting frame 3 of the interposition frame 1.
And concave and convex portions 12 in which a concave groove 11 is formed in the circumferential direction or the radial direction may be provided, so that even if the finishing state of the mating surface of the buried frame 5 is poor, the packing function is performed and the concave portion 7 and the annular convex portion 8 There is an advantage that the familiarity is improved, and the joint surface between the interposed frame 1 and the buried frame 5 is kept in close contact, so that mutual rattling or the like can be prevented.

Further, in the above-described embodiment, the connecting portion 4 of the interposition frame 1 is formed in an inclined shape. However, for example, the connecting portion 4 of the interposition frame 1 may be formed vertically. Arbitrary changes can be made according to the shape. For example, the whole may be formed in a square shape or a polygonal shape.

In addition, the position and number of the interposed frames 1 interposed between the buried frames 5 and the specific heights of the base frame 2, the projecting frame 3 and the connecting portion 4 do not matter. may be set larger than the height H ₄ oR H ₃ are of the basic frame 2 of the height H ₁ of the projecting frame 3 and height H ₂ of the connecting portion 4. Also,
The shape of the buried frame 5 does not matter, and the interposed frame 1 may be formed on the upper and lower surfaces of the frame or any one of them.

[0019]

As described above, according to the present invention, since the sum of the height of the projecting frame and the height of the connecting portion is set to be larger than the height of the base frame, the interposition frame is constructed, The fitting state with the recess provided on the lower surface of the frame is ensured and stabilized, and the height of the projecting frame and the base frame can be adjusted with a small dimension by reducing the thickness, thereby facilitating a series of construction work. Has a special effect that can greatly contribute to

Moreover, by securing the height as described above, even if an external force is applied to the stacked buried frames from the lateral direction, the recessed portions of the buried frames and the protruding frame body and the connecting portion of the interposed frame are connected to each other. Is maintained satisfactorily, and the annular convex portion of the buried frame located at the lower level supports the lower surface of the protruding frame body of the interposition frame and the inner surface of the connecting portion, so that it has sufficient strength and becomes large. There is an advantageous effect that the interposition frame is not damaged even when a shear force acts.

[Brief description of the drawings]

FIG. 1 shows an embodiment of an interposition frame, wherein a left half of (a) is a front view, a right half is a cross-sectional view, (b) a left half is a plan view, a right half is a bottom view, (C) is an enlarged sectional view of a main part.

FIG. 2A shows a use state, a left half portion is a front view, a right half portion is a cross-sectional view, and FIG.

FIGS. 3A and 3B show another embodiment, in which FIG. 3A is a half cut diagram of an interposition frame, an upper half portion is a plan view, a lower half portion is a bottom view, and FIG. , (C) is a BB cross-sectional view of (b),
(D) is a half cut diagram of the interposition frame, the upper half is a plan view, the lower half is a bottom view, (E) is a C-C enlarged end view of (D), and (F) is a D- of (E). D end view.

FIG. 4 shows a conventional intervening frame, in which a left half is a front view and a right half is a sectional view.

FIG. 5 shows a conventional use state, in which the left half is a front view and the right half is a cross-sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Interposed frame 2 ... Base frame 3 ... Projection frame 4 ... Connection part 5 ... Embedded frame 12 ... Uneven part

Claims (1)

(57) [Claims] 1. A result from basic frame (2) said basic frame (2) integrally connected onto been projected frame body (3), leaving projecting
The outer diameter (d) of the frame (3) is changed to the outer diameter (D) of the base frame (2).
And the height of both frames (2) and (3)
_(H 4), _{(H 1)} was formed into a substantially identical embedded frame (5) in KaiSowaku that interposed between said two frame bodies (2), (3)
There are integrally connected by the connecting portion of the thin-walled (4) has a step Rubeku, the protruding frame (3) in height and (H ₁₎ and the connecting portion (4) height (H ₂₎ (H ₃ ) is set to be larger than the height (H ₄ ) of the base frame (2).