JP3095982U - Manhole block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manhole block which can be stacked easily and accurately, and which can safely and easily connect upper and lower adjacent parts by external work. SOLUTION: As an upper connecting means, an upper concave part 1a formed at a constant angular interval on an upper peripheral side of a lower block 4 and an intermediate block 5, and a guide connecting piece 11 which stands up by fixing a base to the upper concave part 1a. A linking hole 11b is opened at the upper part, and a guide connecting piece 11 provided with an outwardly inclined guide part 11a at the upper end.
And a guide connecting recess 2 formed vertically on the lower end peripheral side of the top block 6 so as to correspond to the upper recess 1a, and a female screw portion formed therein. When the upper and lower blocks are stacked, the guide connecting recess 2 A female screw part for screwing and fixing the inserted guide connecting piece 11 with the male screw member 11c through the long hole 11b for coupling, and the male screw member 11c are formed.

Description

[Detailed description of the invention]       [0001]     [Technical field to which the invention belongs]   The present invention is for manholes, which are components of manholes that constitute part of sewers, etc. More specifically, regarding blocks, it is easy to stack and connect manholes. The present invention relates to a manhole block that can be used.       [0002]     [Prior art]   For sewerage, etc., for connection and branching of pipes, water pressure adjustment and maintenance, etc. The hole is usually formed by stacking cylindrical manhole blocks in multiple stages. You. As a result, in various cases where the depth of buried pipes such as sewers is different, The required size can be easily adjusted by changing the number of blocks Alternatively, it is not necessary to transport long, heavy, and difficult-to-handle manholes. Also, small species By combining these components, it is possible to meet the needs of a variety of worksites, thereby improving manufacturing efficiency. Can also be achieved.       [0003]   Manholes are built by stacking multiple manhole blocks transported to the work site. It was assembled, but initially it was assembled in the actual installation holes. Effectiveness of work Due to the limitations of the rate and excavation area, the number of holes for installation is necessary minimum, that is, manhole or Drilling is only slightly beyond the diameter of the manhole block, Enter the manhole block inside and hang the manhole block Work such as guidance and fastening of connection bolts was performed.       [0004]   Manholes are often installed on roads, which can lead to traffic restrictions during facility work. Many, but working in narrow manhole blocks is dangerous and inefficient, It was also a factor that prolonged traffic regulations. Recently, working equipment such as cranes Developed and spread, often buried manholes after assembling outside the hole in advance, The stacked manhole blocks remain connected from the inside as before. It is.       [0005]   For example, of the manhole blocks vertically adjacent to each other, A pin that can be fitted with this pin is located at the lower end of the rim on the upper side where the pin is After positioning and stacking them so that they fit, the manhole block Tighten the connection bolts from the inside of the lock. Positioning by fitting this pin and hole In difficult and inefficient and still inefficient manhole blocks Is required.       [0006]     [Problems to be solved by the invention]   The present invention solves the above-mentioned problems in the prior art and works from the inside described above. To provide a manhole block that does not require Is to solve the problem.       [0007]     [Means for Solving the Problems]   The present invention relates to a cylindrical manhole block which is stacked in multiple stages to form a manhole. In the   On the upper peripheral side of the manhole block, for other manholes stacked thereon The upper connecting means for coupling with the lower connecting means on the lower peripheral side of the block is And upper connecting means on the upper peripheral side of another manhole block stacked thereunder. The lower connecting means for coupling with   A plurality of the upper connecting means are formed on an upper peripheral side of the manhole block. An upper concave portion and a guide connecting piece having a base fixed to each upper concave portion, Along the top of the upper recess along the top, and at the top there is an outward slope Along with the inside, it is composed of a guide connecting piece with a long hole for coupling opened in the middle,   The lower connecting means is attached to the lower peripheral side of the manhole block at the upper peripheral side. A guide connection recess formed vertically corresponding to the upper connection means, and formed in the guide connection recess; Female screw part, wherein the manhole block is connected to the upper connecting means and the lower part. The guide connection of the lower connection means when the upper connection means and the lower connection means are stacked vertically. The male member is inserted through the long connecting hole in the guide connecting piece of the upper connecting means that has entered the recess. And a female screw thread that allows the screw member to be screwed together. Lock.       [0008]   Applicable manhole blocks have specific shapes etc. as long as the above conditions are met. It is not limited. Of course, well-used cylindrical shapes can be adopted. You. More generally speaking, the manhole block has upper and lower joints at the upper and lower ends. The shape in the middle is free as long as the shape matches the shape. Therefore, the top The part other than the lower end of the hole block and the part other than the upper end of the lowermost block are free. There will be. For example, the manhole block at the upper end It is also possible to freely form a tapered shape having a small diameter. In addition, usually the lowermost manho Block has a bottom cover, and the top Needless to say, a lid is attached.       [0009]   Locked on the upper peripheral side or lower peripheral side of each manhole block stacked vertically The guide connecting pieces that connect to each other are necessary and have sufficient strength, and Not wide enough to take into account the curvature of the perimeter of the hole block If so, the width and shape are not particularly limited. The length and thickness required for connection There is no particular limitation as long as the thickness is within the range necessary for ensuring the thickness. Also, make sure the number is up and down It is difficult to guide the upper manhole block to be connected or suspended to a predetermined position. An inconvenient number, for example, having a total of 3 or more at positions that equally divide the circumferential side If theoretically the minimum function can be secured, there is no reason to limit it further. Mo In addition to the above guide functions, upper and lower manhole blocks due to earthquakes after connection In order to prevent mutual misalignment, about 4 guide connecting pieces are arranged at regular angle intervals. Is practically preferred.       [0010]   In the above description, a plurality of guide connecting pieces are arranged at regular angle intervals. It doesn't have to be. However, it is better to arrange it that way This is preferable because of its good balance.   In addition, the depth of the upper concave portion and the guide connecting concave portion is determined by the size of the guide The thickness is almost the same as the thickness of the piece.       [0011]   Therefore, according to the manhole block of the present invention, a plurality of When assembling the manhole, lower the upper manhole block to be suspended. Easily and accurately on the manhole block located at Can be combined.       [0012]   The upper manhole block to be suspended is for the lower manhole. Easily use the guides of the multiple guide connecting pieces arranged on the block as a mark It is possible to guide inside the fancy circle connecting between, and after leading into the fancy circle, The upper manhole block is rotated as necessary to form The guide connection recesses are vertically aligned with the guide connection pieces of the lower manhole block. By further lowering while finely adjusting the guide connecting piece as a mark, Each corresponding guide connection piece can slide into the connection recess. In this way Insert the upper manhole block into the lower The corresponding guide connecting pieces of the rack are lowered while sliding in and out. Can be accurately placed on the upper end of the manhole block.       [0013]   Also, place the upper manhole block on the lower manhole block. After that, each of the guide connecting pieces is inserted into the male through a long connecting hole opened in the middle thereof. By screwing the screw member into the female thread opening in the guide connection recess, Connected to and fixed to the guide connecting recess, through which the manhole The locks can be reliably and easily connected to each other. Each such plan The connection by the inner connecting piece is always performed by work from the outside of the manhole block. Is easy and safe, and each corresponding part of the guide connecting piece is Since it is buried in the recess or the guide connection recess, Trouble with contact with external objects when installing the assembled manhole Can also be prevented. In addition, at least three or more, for example, four guide trains The upper and lower manhole blocks are connected to each other with These manhole blocks can be reliably prevented from shifting from each other.         [0014]       [Embodiment of the invention]   Embodiments of the present invention will be described in detail with reference to the drawings.         [0015]     <Example>   As shown in FIG. 4 (b), the manhole block of this embodiment has From the lower block 4, middle block 5, 5 and top block 6 These manhole blocks are stacked in a total of four levels to form a manhole M. Things.       [0016]   The seat plate 3 is a plate-like member integrally formed below the lower end block 4. The slab 3 improves the overall stability of the manholes M that are stacked in multiple layers at a high level. In addition, as shown in FIG. 4 (b), the heavy manhole M functions to support the ground B. You.       [0017]   The lower end block 4 has a circular shape similar to the intermediate blocks 5 and 5 stacked immediately above the lower end block 4. It is a cylindrical component. The lower end block 4 has a bottom part as described above. 1 and 4 (a) and 4 (b), the plate 3 is disposed immediately above the bottom plate 3. A socket 8 is provided for connection with the pipe P.       [0018]   The intermediate block 5 is a cylindrical block having the same diameter as the lower end block 4. The top block 6 has a cylindrical shape near the lower end and the same diameter as the intermediate block 5. It is a cylindrical block having a tapered shape tapering from the inside toward the upper end. Also The top block 6 has a manhole cover 6a at its upper end.       [0019]   As shown in FIG. 1, on the upper peripheral side of the lower block 4 and the intermediate block 5, The upper recesses 1a, 1a,... It has been done. As shown in FIG. 2 (a), each upper concave portion 1a has an opening on its inner surface. Female threaded portion 1b is formed, and is arranged in contact with the inner surface of each upper concave portion 1a. The base of the guide connecting piece 11 is inserted through the locking hole 11e opened in the base, And is fixed to the portion by a male screw member 11c screwed into the female screw portion 1b. You. A washer 11d is inserted between the head of the male screw member 11c and the guide connecting piece 11. Shall be kept.       [0020]   Note that each of the upper concave portions 1a is a strip-shaped concave portion that is long in the vertical direction. As shown in FIG. 1, the lower end block 4 and the upper end of the intermediate block 5 and the radial direction Open. The depth is approximately the thickness of the guide connecting piece 11, and The length in the direction is set to slightly exceed the length of the base of the guide connecting piece 11. The female The screw portion 1b is provided on the inner surface of the upper concave portion 1a in the vicinity of the center in the vertical and horizontal directions. Open.       [0021]   As shown in FIGS. 1 and 2 (a), (b) and (c), the guide connecting piece 11 It is a strip-shaped metal piece, and the locking hole 11e is slightly below the center of the base (lower part). It has an opening, and a long slot 11b for coupling is opened along its center line at the top. The plan At the upper end on the upper side of the inner connecting piece 11, a guide portion 11a bent further obliquely outward is formed. It has been done.       [0022]   As shown in FIG. 1, the peripheral side is divided into four equal parts on the lower peripheral part of the intermediate block 5. Guide coupling recesses 2, 2,... That open at the lower end and radially at angular intervals are provided. Each plan As shown in FIG. 2 (a), the inner connection recess 2 has a female screw portion 2 a that opens on the inner surface thereof. A lower end block 4 (or an intermediate block 5 located below), which will be described later. The guide connecting piece that slides into the inner surface of each guide connecting recess 2 when connecting with 11 is inserted through the coupling long hole 11b opened at the top, and The male screw member 11c screwed to the screw portion 2a is fixed to the portion. ing. At this time, between the head of the male screw member 11c and the guide connecting piece 11 Inserts the washer 11d.       [0023]   Each of the guide connection recesses 2 is a strip-like recess that is long in the up-down direction. As shown in FIG. 1, it opens at the lower end of the intermediate block 5 and in the radial direction. That The depth is approximately the thickness of the guide connecting piece 11, and the length in the vertical direction is It is about the length of the upper part of the tie 11 and the guide part 11a. The female screw portion 2a is An opening is formed in the inner surface of the guide coupling recess 2 near the center in the vertical and horizontal directions. And       [0024]   The above-described upper concave portion 1a, female screw portion 1b, male screw member 11c, and guide connection The piece 11 constitutes an upper connecting means, and the guide connecting concave portion 2, the female screw portion 2a and the male screw member 11c constitutes a lower connecting means, and is provided below the top block 6. Also, as shown in FIG. 4 (b), exactly the same lower connecting means is constituted. Pile The upper end of the lower end block 4 and the lower end of the intermediate block 5, above the lower intermediate block 5 End and the lower end of the upper intermediate block 5, the upper end of the upper intermediate block 5 and the top block. The lower end of the hook 6 is connected to the lower connecting means by an upper connecting means and a lower connecting means, which will be described later. So that they can be combined.       [0025]   Therefore, according to the manhole block of this embodiment, one lower end block 4, The two intermediate blocks 5, 5 and one top block 6 are stacked and When assembling, the upper top block 6 or the intermediate block 5 to be suspended Place easily and accurately on the lower intermediate block 5 or lower block 4 Thus, the two can be securely connected.       [0026]   The stacking operation and connecting structure of the upper and lower manhole blocks Since the same applies between the locks, the intermediate block 5 is stacked on the lower end block 4 below. And a case where they are connected to each other.       [0027]   First, the lower end block 4 is arranged at a predetermined position, and then the intermediate block 5 is placed thereon. Is placed. The intermediate block 5 is lifted by a predetermined heavy machine, Move it above 4 and hang it down. The suspended intermediate block 5 is shown in FIG. (This is the case when the upper intermediate block 5 is placed on the lower intermediate block 5). FIG. 4 is a diagram showing a state, even when the device is placed on the lower end block 4, needless to say, The same applies), and after lowering to some extent, from the lower peripheral block 4 The guide portions 11a of the four guide connecting pieces 11, 11,... Make fine adjustment movement to enter the side.       [0028]   As described above, the suspended intermediate block 5 is connected to the inside of the guide connecting pieces 11, 11. After that, the intermediate block 5 is rotated as necessary to form on the peripheral side thereof. , Respectively, correspond to the guide connecting pieces 11, 11,. Finely adjust the horizontal and rotational directions while using the guide connecting pieces 11, 11. The guide connecting pieces 11, 11 corresponding to the respective guide connecting recesses 2, 2,. … Slides in, and through this the intermediate block is exactly on the lower end block 4 Can be placed on the       [0029]   The guide connecting pieces 11, 11... Correct the suspended intermediate block 5 in this manner. It works effectively for positioning on the lower end block 4 surely.   Since the guide portion 11a at the tip is bent obliquely outward, FIGS. 3 (a) and 3 (b) As shown in the figure, even when the upper intermediate block 5 is slightly displaced, The virtual circle passing between the tips of the pieces 11, 11,... Is longer than the outer diameter of the intermediate block 5. Therefore, the intermediate block 5 can be easily guided to the inside thereof. As shown, the guides 11a, 11a,. It also makes it easy to perform fine adjustment horizontal movement until it matches that of the lower end block 4. There is also.       [0030]   Align the axis of the intermediate block 5 with that of the lower block 4 and rotate it as necessary. , And the respective guide connecting recesses 2, 2,... And the corresponding guide connecting pieces 11, 11,. After matching, as shown in FIGS. 3C and 3D, the intermediate block 5 is simply lowered. As described above, the guide connecting pieces 1 corresponding to the respective guide connecting recesses 2, 2,. 1, 11,... Slide into the lower end block 4 while maintaining an accurate positioning state. This means that it can be placed on top.       [0031]   After the intermediate block 5 is placed on the lower end block 4 as described above, Each of the guide connecting pieces 11, 11... Is inserted in the middle thereof as shown in FIG. 1 and FIG. The male screw member 11c is opened in the guide connecting recess 2 through the opened connecting long hole 11b. Are screwed into the female screw portions 2a that are opened, and are connected to the corresponding guide connection recesses 2, 2,. Set. Is the intermediate block 5 and the lower end block 4 stacked vertically in this manner reliable? Can be easily connected. The female screw 2a or the guide connecting piece 1 1 on the screwing of the male screw member 11c and the female screw portion 2a due to the vertical displacement of The problem is that the connecting long hole 11b of the guide connecting piece 11 is configured to be sufficiently long in the vertical direction. This has been resolved by       [0032]   Only the case where the intermediate block 5 is stacked on the lower end block 4 has been described above. However, as described above, when another intermediate block 5 is placed on the intermediate block 5, When the top block 6 is placed on the upper intermediate block 5, the operation is the same. It is like.       [0033]   At the upper ends of the lower block 4 and the intermediate block 5, annular recesses 4a are respectively provided. Formed, and the annular seal 7 is fitted into the annular recess 4a, and is connected to each other up and down. In this case, between the lower end block 4 and the intermediate block 5, the intermediate blocks 5, 5 Water tightness between the space and between the intermediate block 5 and the top block 6 shall be ensured. You.       [0034]   Thus, the manhole M can be configured. All the work is done at the bottom Efficiency is achieved outside the manhole blocks such as Good and secure. Most of the guide connecting piece 11 has an upper concave portion 1a or Is buried in the guide coupling recess 2, so that the manhole block such as the intermediate block 5 can be used. It is effective in preventing displacement of the lock in the rotation direction and displacement in the horizontal direction. After assembly, troubles caused by contact with surrounding objects until installation in the required position It is also effective for avoidance.       [0035]     [Effect of the invention]   As described above, according to the manhole block of the present invention, these manhole blocks are used. The stacking work of each other is easy and accurate, and the connection Work is performed outside the control block, ensuring safe and speedy work. It can be done. In addition, there is no protrusion at the connection, so the assembled When installing the tool in a predetermined position, troubles caused by contact with external I do not. Furthermore, at least three or more guide connecting pieces are used for the upper and lower manhole block phases. By connecting each other, the gap between those manhole blocks caused by earthquake etc. This can be reliably prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view showing a state in which manholes are being assembled by stacking manhole blocks (lower end blocks and intermediate blocks). FIG. 2 (a) is a partially cut-away enlarged vertical sectional view of a connecting portion between a vertically adjacent lower end block and an intermediate block. (b) is an enlarged front view of a connecting portion between a vertically adjacent lower end block and an intermediate block. (c) is an enlarged vertical sectional view of the guide connecting piece. FIG. 3 (a) is a partially cutaway front view showing a state in which an intermediate block descends and approaches a lower end block. (b) is a partially cutaway front view showing a state in which the lower end of the intermediate block descending to the guide portion of the guide connecting piece of the lower end block is in contact. (c) is a partially cutaway front view showing a state in which the intermediate block is appropriately positioned above the lower end block. (d) is a partially cutaway front view showing a state in which intermediate blocks are accurately stacked on a lower end block. FIG. 4A is an explanatory plan view showing an installation state of manholes assembled by manhole blocks according to one embodiment. (b) is a partially cutaway side view showing the installation state of the manhole assembled with the manhole block of one embodiment. DESCRIPTION OF SYMBOLS 1a Upper concave portion 1b Female screw portion 2 Guide connecting concave portion 2a Female screw portion 3 Seat plate 4 Lower block 4a Annular recess 5 Intermediate block 6 Top block 6a Manhole cover 7 Annular seal 8 Socket 11 Guide connecting piece 11a Guide portion 11b Coupling Slot 11c Male thread member 11d Washer 11e Lock hole B Ground M Manhole P Piping

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Yoshinori Fujita             2119 Kozuru, Ibaraki, Ibaraki, Ibaraki             1. Inside Ogawara Cement Industry Co., Ltd.

Claims (1)

Claims: 1. A cylindrical manhole block comprising a plurality of stacked manholes for constructing a manhole, wherein the other manhole is stacked on the upper peripheral side of the manhole block. An upper connecting means for connecting to the lower connecting means on the lower peripheral side of the block, and a lower connecting means for connecting to the upper connecting means on the upper peripheral side of another manhole block stacked below the lower circumferential side. A plurality of upper concave portions formed on the upper end peripheral side of the manhole block, and a guide connecting piece having a base fixed to each of the upper concave portions, wherein the upper concave portion comprises: A guide connecting piece that rises above the upper end of the upper concave portion along the upper side, and that has an outwardly inclined guide portion at the upper portion thereof, and has a long connecting hole opened in the middle thereof. A guide connecting recess formed on the lower peripheral side of the manhole block so as to correspond vertically to the upper connecting means on the upper peripheral side, and a female screw portion formed in the guide connecting concave, When the blocks are vertically stacked with the upper connecting means and the lower connecting means corresponding to each other, the blocks are inserted through the long connecting holes in the guide connecting pieces of the upper connecting means that have entered the guide connecting recesses of the lower connecting means. A manhole block comprising a female screw portion into which a male screw member can be screwed.