JPH0728196Y2 - Alignment block on the manhole neck - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an alignment block for a manhole, such as an iron lid receiving frame, which is attached to an opening of a neck part which is raised from a manhole in which an electric wire or the like is buried.

[Prior Art] As shown in Fig. 7, the iron cover of the manhole requires the final level to match the road surface gradient in order to maintain consistency with the road surface. An alignment joint 3 is provided between the iron lid receiving frames 2 of the manhole.

Conventionally, the alignment joint 3 is formed of mortar on the upper end of the neck portion 1 at the site so as to match the road surface gradient.

[Problems to be solved by the device]

In the installation and replacement of manholes and the repair work of the surrounding road surface, in order to minimize the traffic restriction to passing vehicles, it is common to intensively perform at midnight or early morning when the traffic volume decreases.

However, curing time is required to form the joints with mortar, and it takes a long working time to solve the problem of traffic restriction.

Also, if you try to obtain strength early by using early-strength cement or the like on the joints of this mortar etc., the curing time can be shortened, but during the curing period the shrinkage decreases sharply and cracks may occur. There is a problem that secondary adverse effects occur.

Further, due to the above-mentioned peculiarity of working hours, the difficulty of handling the materials used due to a shortage of workers and rapid construction becomes a problem.

Also, because the manhole cover of the manhole is fixed by mortar, the manhole cover moves up and down by a passing vehicle, and when the movement and the vibration cycle of the joint material are synchronized,
There is a problem that the lid bounces off in a severe case when the movement is amplified and the movement is enhanced.

[Means for solving the problem]

The present invention is an endless elastic support block having a slope and a ridge formed on an upper surface, and an elastic endless horizontal block made of an elastic material having a ridge formed on the lower surface like this supporting block. A block is provided, the horizontal block is placed on the upper end of the neck portion that stands up in the manhole, the supporting block is superposed on the block, and the iron-cover receiving frame of the manhole is installed thereon.

[Action]

According to the above configuration, the horizontal block is placed on the upper end of the neck, the supporting block is aligned with the shape of the road and overlapped, and the manhole's iron lid receiving frame is installed on it. By fixing with bolts to the surrounding base plate via the flange, the iron lid receiving frame of the manhole adheres to the upper surface of the block at a predetermined slope and at a predetermined height,
It prevents rainwater from entering the manhole, suppresses vertical movement, and keeps noise while passing through the vehicle.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a plan view of a supporting block, FIG. 3 is a sectional view, FIG. 4 is a plan view of a horizontal block, and FIG. 5 is a sectional view. FIG. 6 is a sectional view showing an example of the shape of the block.

The neck portion 1 and the iron lid receiving frame 2 are the same as those in the prior art, and 4 is the manhole iron lid.

The gradient in the width direction of the road is generally about 10/1000 to 20/1000, and the diameter of the manhole frame is standardized. Therefore, in the present embodiment, attention is paid to such a point, and in the figure, 5 is a supporting block, which is an endless elastic material annular body having a predetermined gradient, Alternatively, a plurality of ridges 5a (one ridge is shown in this embodiment) are formed, and as the elastic material, natural rubber, synthetic rubber, synthetic resin, asphalt, etc. can be considered.

The cross-sectional shape of the supporting block 5 may be rectangular, trapezoidal, circular, elliptical or the like as shown in the cross-sectional view of FIG. Moreover, a hollow portion may be formed therein as needed.

Reference numeral 6 denotes a reinforcing material embedded in the supporting block 5 as needed, and various fibers such as glass, natural or synthetic resin, rubber material, synthetic resin material and metal material are used.

Here, when using fibers as a reinforcing material, embed them when fluctuating tension is generated inside the block to accelerate the deterioration of the material, and increase the elastic constant to reduce the vertical deformation amount. You can When a rubber material, a synthetic resin material, or a metal material is used as a reinforcing material, it may have low rigidity or may be composed of an elastic material having low rigidity depending on conditions such as height and thickness. It is possible to reduce the amount, and it is also possible to prevent the deterioration of the material even if the variable tension is generated inside the block.

Next, 7 is a horizontal block which is used by being overlapped with the above-mentioned supporting block 5, and has one or a plurality of ridges 7a (in this embodiment, one ridge 7a) having the same thickness all over the lower surface. The height of the iron cover 4 is adjusted by an endless annular body made of an elastic material having several thicknesses. Natural rubber, synthetic rubber as well as synthetic resin,
Asphalt, etc. can be considered.

The cross-sectional shape of the horizontal block 7 may be rectangular, trapezoidal, circular, elliptical, or the like as shown in FIG. 6, and a hollow portion may be formed therein if necessary.

Reference numeral 8 denotes a reinforcing material embedded in the horizontal block 7 as needed, and various fibers and metal materials similar to the reinforcing material are used.

Here, when using the fiber as a reinforcing material, similar to the above
When the variable tension is generated inside the block and deterioration of the material is promoted, the block is embedded and the elastic constant can be increased to reduce the vertical deformation amount. When using a rubber material, a synthetic resin material, or a metal material as a reinforcing material, the height,
When the rigidity is low or the material is made of an elastic material with low rigidity depending on conditions such as thickness, the amount of vertical deformation can be reduced, and even if fluctuating tension occurs inside the block, the material will not deteriorate. You can prevent it.

Reference numeral 9 is a root winding block that covers and protects the neck of the manhole.

According to the above structure, as shown in FIG. 1, the horizontal block 7 is placed on the upper end of the neck 1, and the supporting block 5 is placed thereon.
Align with the shape of the road and stack.

By installing the iron lid receiving frame 2 of the manhole on the supporting block 5 thus constructed and fixing it to the surrounding base plate with the bolts 10 via the flange 2a, the iron lid receiving frame 2 can be vertically moved at a predetermined gradient. It will be fixed in a suppressed state.

At this time, if the outer peripheries of the supporting block 5 and / or the horizontal block 7 or both of them are fitted and arranged so as to be in close contact with the inner peripheral surface of the root-wound block 9, the waterproofness and waterproofness will be excellent.

Further, although the above description has been described as a matching joint, the block is not necessarily limited to the matching joint block and may be configured as a block integrated with a block forming the neck portion.

[Effect of device]

According to the present invention described in detail above, the endless support block made of an elastic material having a slope and a ridge formed on the upper surface and an endless ridge formed on the lower surface like this support block. A horizontal block made of elastic material is provided, and the horizontal block is placed on the upper end of the neck part standing up in the manhole, and two blocks made of elastic material are stacked by superposing the supporting block on it. Therefore, it is possible to form a high-height elastic portion, and therefore, even if an elastic material with high hardness is used, the natural period becomes sufficiently long and the propagation velocity inside the object also slows down, so that the manhole Vertical movement is suppressed, and soundproofing is performed.

In addition, since the block is made of an elastic material and the ridge is formed, the close contact between the block and the block and the upper surface of the neck portion, the block and the iron lid receiving frame of the manhole is good,
It has the effect of preventing intrusion of water such as rainwater into the manhole from those places.

Further, by bringing this block into close contact with the root-wound block around the neck, it is possible to further prevent water from entering.

In addition, these blocks are commercialized in advance in the factory, and can be installed on-site by light work such as human power. Furthermore, since the curing time as in the past is not required, the construction time can be significantly reduced. Therefore, the traffic congestion can be minimized, and the traffic can be passed immediately after the construction is completed.

As described above, the work is simplified, simplified, and rapidly constructed, so that the influence of the manhole construction on the passing vehicles is extremely reduced, so that it is not necessary to limit the working hours to late night or early morning.

Further, the height can be easily adjusted by changing the height of the blocks to be polymerized, and the workability is excellent.

[Brief description of drawings]

1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a plan view of a supporting block, FIG. 3 is a sectional view, FIG. 4 is a plan view of a horizontal block, and FIG. 5 is a sectional view. FIG. 6 is a sectional view showing an example of the shape of a block, and FIG. 7 is a sectional view showing a conventional example of a neck portion of a manhole. 1 …… Neck 2 …… Iron lid receiving frame 4 …… Iron lid 5 …… Supporting block 5a …… Projection strip 7 …… Horizontal block 7a …… Projection strip

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Karamizo Ara 2-21-1, Isoji, Minato-ku, Osaka City, Osaka Prefecture Nihon Dentsu Construction Co., Ltd. (72) Inventor Hidetoshi Kako 1 Kinugaoka, Uozumi-cho, Akashi City, Hyogo No. 15-16 (56) References Microfilm (JP, U) images taken of the specifications and drawings attached to the application for Japanese Patent Application No. Sho 62-3843 (No. Sho 63-112548) Microfilm (JP, U) Photographs of the details and drawings attached to the application of Japanese Patent Application No. 58-159763 (Japanese Utility Model Application No. 60-66747) Japanese Patent Application No. 60-104230 No. 12647), a microfilm (JP, U) of the specifications and drawings attached to the application.

Claims (1)

[Scope of utility model registration request] 1. An endless supporting block made of an elastic material having a slope and a ridge formed on the upper surface, and an elastic horizontal member made of an elastic material having an endless ridge formed on the lower surface like the supporting block. And a horizontal block is placed on the upper end of the neck part standing up in the manhole, the supporting block is superposed on it, and a manhole iron frame is installed on the manhole neck part. Matching blocks.