JPH0439338Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a joint for a waterway with a socket, such as a bench furium according to the JIS standard.

[Conventional technology]

Conventionally, this type of joint for a waterway with a socket generally has a socket part 2 of the waterway 1 and a socket part 2 of the other fitting fitted in the socket part 2, as shown in FIG. Between the spigot part 4 of the waterway 3, the inner joint part 5 is filled with a resin caulking material 6, or as shown in FIG. There is one in which a packing material 5 is sandwiched between the two.

In addition, for the purpose of preventing separation of both waterways in the event of an earthquake, etc., as shown in FIG. L-shaped metal fittings 5 and 6 are fixed to the outer surfaces of the socket part 2 of the water channel 1 and the spigot part 4 of the water channel 3, respectively, by spanning them and connecting them with bolts 6, or as shown in FIG. , attach both L-shaped fittings 5 and 6 to bolt 7 and nut 8.
There are some that are connected.

Furthermore, as shown in Figure 9, the purpose of rigidly connecting both waterways when the foundation ground is soft is as follows.
There is a system in which the left and right water channels 1 and 2 are connected by tensioning a prestressed steel material 3 embedded in the side walls 1A and 2A.

Furthermore, as a combination of the above objectives,
As shown in FIG. 10, a packing material 3 is sandwiched between the end faces of the left and right water channels 1 and 2, and a steel plate 6 is stretched over the upper surfaces of the fitted socket part 4 and spigot part 5. There are some that are connected with bolts 7.

[Problem that the invention attempts to solve]

However, in the conventional example shown in Fig. 5, the resin-based caulking material 6 has elasticity, so it can follow short-term uneven settlement, but it has short durability, high price, and poor caulking construction. If the timing is not properly controlled, the resin-based caulking material 6 may peel off from the inner joint portion 5, which is a drawback.

In addition, in the conventional example shown in Fig. 6, it is possible to follow the slight uneven settlement of the connected waterways 1 and 3 to some extent, but there are also problems that gaps tend to occur at the joints of the waterways 1 and 3, and that the joints deteriorate over time. Since the regular packing material 5 in the bottom plate part of the tank collapses under the weight of the water channel 3 and gradually becomes unable to restore its original shape, it cannot be expected to have water-stopping properties or be effective against uneven settlement over a long period of time.

Furthermore, in the conventional examples shown in Figures 7 and 8, the degree of connection is high because both waterways 1 and 3 are connected by bolts, but on the other hand, if this rigid connection is high, stress is applied to the waterway itself during uneven settlement, resulting in cracks. There is a possibility that something like this may occur.

Further, the conventional example shown in FIG. 9 is a rigid connection by tensioning the prestressing steel material 3, which is effective when the number of connected water channels 1 and 2 is small. However, when the number of connected pieces increases, it becomes difficult to connect them, and during manufacturing.
There are disadvantages such as embedding the PC steel material 3 is troublesome and expensive.

Furthermore, the conventional example shown in FIG. 10 has almost the same drawbacks as the conventional example shown in FIG.
If the durability of the restoring force is short, there is a drawback that a long-term water-stopping effect cannot be expected.

[Means for solving problems]

The present invention was developed to solve the above-mentioned drawbacks of the conventional methods, and by loosely holding the waterway joint with an L-shaped fitting, it can be used on soft ground while maintaining water-stopping performance. The purpose is to provide a joint structure that prevents uneven settlement of the waterway or separation of the connecting waterway due to earthquakes. The other side of the L-shaped fitting is formed on both the left and right outer surfaces of the spigot part, and one side of the L-shaped metal fitting is fitted into a notched recess provided on the left and right sides of the socket part and has one side fixed to a notch recess having an inwardly downwardly inclined surface. A joint for a waterway with a socket, characterized in that the joint is engaged with a recess having a surface that slopes upward toward the end.
and a socket-equipped waterway joint in which the above-mentioned packing is interposed only between the abutting surfaces.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to embodiments shown in FIGS. 1 to 4. In addition, Fig. 1 is a perspective view of the water channels before they are connected using the joint according to the present invention, Fig. 2 is a sectional view showing the main parts of the joint, and Fig. 3 is the main part of the water channels after they are connected. Perspective view shown in Figure 4 (A),
(B) and (C) are explanatory diagrams of the action of the present invention.

In the drawings, reference numeral 1, 1 indicates a water channel block having a U-shaped cross section, one end of which is formed with a socket portion 2, and the other end of which is formed with a spigot portion 3 that can be inserted into the socket portion 2. .

Reference numerals 4, 4 denote grooves, which are formed on both the left and right end faces 2a, 2a of the socket portion 2, and the bottom surface 4a of the groove 4 is formed as an inclined surface that slopes downward inwardly. As shown in FIG. 2, a female thread cylinder 6 into which a bolt 5 is screwed is embedded in the center of the bottom surface 4a of the groove portion 4.

Reference numerals 7 and 7 designate rectangular recesses formed in the left and right outer wall surfaces 1A and 1A near the spigot portion 3, respectively, at positions corresponding to the grooves 4 and 4, with the bottom surfaces 7a facing toward the tip. Although it is formed into an ascending slope, its inner circumferential surface has a predetermined clearance with respect to the other side (free end) 8B of the L-shaped fitting 8, which will be described later, and the water channel blocks 1, 1 have a predetermined clearance. It is formed at a depth that allows it to lock with the other side (free end) 8B of the L-shaped metal fitting 8 when moved in the connection direction and the vertical direction.

Reference numeral 8 denotes an L-shaped metal fitting for connecting the water channel blocks 1, 1, and one side (fixed end) 8A thereof is formed with an elongated insertion hole 9 whose long axis is in the horizontal direction into which the bolt 5 is inserted. The L-shaped fitting 8 is attached by fixing this one side 8A to the bottom surface 4a of the groove 4 formed in the face 2a of the socket portion 2. In the figure, 10 is a gasket interposed between the socket portion 2 and the spigot portion 3, and 11 is a gasket interposed between the abutting surfaces 1a, 1a of the socket portion 2 and the spigot portion 3.

[Effect of the embodiment]

Therefore, at the installation site, a packing 10 is wrapped around the outer periphery of the spigot portion 3 of one waterway block 1, and fitted into the socket portion 2 of the other waterway block 1 to which the spigot portion 3 is connected.

Next, the free end 8B of the L-shaped fitting 8 is fitted into the recess 7 of the spicot part 3, and the other fixed end 8A
into the groove 4 of the socket part 2. Then, insert the bolt 5 into the insertion hole 9 of the fixed end 8A, and
and the female threaded cylinder 6 of the groove part 4 are screwed together and tightened.

At this time, the bottom surface 4a in the groove 4 of the socket part 2 is formed as an inclined surface that slopes downward inward, and the bottom surface 7a in the recessed part 7 of the spigot part 3 is formed as an inclined surface that slopes upward toward the tip. Therefore, as shown in FIG. 4(A), first, the outside of the bottom surface 4a of the groove portion 4 comes into contact with the fixed end 8A of the L-shaped fitting 8.

Then, as bolt 5 is tightened, L
The fixed end 8A of the mold fitting 8 moves in the connection direction using a contact portion on the outside with the bottom surface 4a in the groove portion 4 as a fulcrum. As a result, the base 8C of the fixed end 8A and free end 8B of the L-shaped fitting 8 is
The spigot part 3 is drawn toward the socket part 2 of the installed waterway block.

Furthermore, when the bolt 5 is tightened until the fixed end 8A of the L-shaped fitting 8 comes into close contact with the bottom surface 4a in the groove 4, the other free end 8B of the L-shaped fitting 8 is tightened as shown in FIG. 4(B). The spigot part 3 is pressed inward and moved in the direction of the socket part 2 while being positioned at a predetermined position in the socket part 2, so that the free end 8B is tightly fitted into the bottom surface 7a of the recess part 7.

As a result, the left and right waterway blocks 1 and 1 are 2 to 3
They are attracted to each other by about mm, and their abutting surfaces 1
As the distance between a and 1a decreases, both side walls 1A and 1A of the spigot part 3 are held in a state where they are gently sandwiched from the left and right by the free end 8B of the L-shaped fitting 8 fixed to the socket part 2. At the same time, Figure 4
As shown in (C), the upper end edge of the free end 8B engages with the upper end edge 7b of the recess 7, so that the socket portion 2
Both water channel blocks 1, 1 are connected with the spigot portion 3 supported from below.

Therefore, the joint part is completely water-tightened by the packing 10 and also serves as a cushioning material. In particular, the gasket 10 located on the bottom plate is attached to the spigot portion 3.
Since it is supported from below by the socket part 2 at a predetermined height, it will not collapse and will not lose its restoring force over a long period of time.

Therefore, when both waterway blocks 1, 1 sink unevenly, or when an earthquake or the like occurs, both waterway blocks 1, 1 move in the anti-coupling direction or in the vertical/horizontal direction, but the metal fittings 8 Free end 8B
is fitted in the recess 7, so movement beyond the clearance is regulated, and uneven settling or separation of both waterway blocks 1, 1 is prevented, and stress is generated in both waterway blocks 1, 1. do not.

In addition, in the present invention, instead of the packing 10, the abutting surfaces 1a of the two waterway blocks 1, 1,
A rubber or sponge-based gasket 11 may be interposed between 1a, and in this case, in the process of tightening the bolt 5, the left and right water channel blocks 1, 1 are tightened by 2 to 3 mm.
somewhat attracted to each other.

Therefore, since the gap between the abutting surfaces 1a, 1a is reduced, the packing 11 is in a moderately compressed state, and the cushioning and water-stopping effects are exhibited.

[Effect of idea]

As described above, the socket-equipped waterway joint according to the present invention fits the spigot part at the other end of the waterway to be connected to the socket part at one end of the waterway via a packing, and the spigot part at the other end of the waterway to be connected is fitted into the socket part at one end of the waterway. An L whose one side is fixed to a notched recess having a surface that slopes downward toward the
Since the other sides of the shaped metal fittings are engaged with recesses formed on both left and right outer surfaces of the spigot portion and having surfaces that slope upward toward the ends, the connection can be completed simply by tightening the connecting fittings. It is possible to reliably draw the connection direction of both waterways and position them in the width direction, and even when installed on soft ground, it maintains water-stopping performance over a long period of time, while also preventing uneven settlement of both waterways or in the event of an earthquake. Departure can be reliably prevented.

In addition, since it is not a rigid connection, unnecessary stress is not generated in the water channel and durability is improved.Also, it can be installed using almost the same method as conventional methods, as only simple features are added to the socket and spigot parts of a general-purpose water channel. It has various advantages such as being easy to manufacture and being inexpensive.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of water channels before connection using the joint according to the present invention, Fig. 2 is a vertical sectional view showing the main parts of the joint, and Fig. 3 is a perspective view showing the main parts of the joint after connection. 4, (A), (B), and (C) are cross-sectional views explaining the operation of the present invention, and FIGS. 5 to 10 show the main points after connecting water channels using different conventional joint structures. FIG. 1... Channel block, 1A... Outer surface, 2...
socket part, 3... spigot part, 4... groove part,
4a... Bottom surface, 5... Bolt, 6... Female thread tube, 7... Concave portion, 7a... Bottom surface, 7b... Same upper edge, 7c... Side end surface, 8... L-shaped metal fitting, 8A...
...Same fixed end, 8B...Free end, 9...Same insertion hole,
10, 11... Patsukin.

Claims (1)

[Claims for Utility Model Registration] 1. A spigot part at the other end of the waterway to be connected is fitted into a socket part at one end of the waterway via a gasket, and surfaces inclined downwardly toward the inside provided on the left and right sides of the socket part are provided. The other side of the L-shaped metal fitting, which has one side fixed to the groove, is engaged with a recessed part formed on both left and right outer surfaces of the spigot part and having a surface that slopes upward toward the end. Channel fittings. 2 Fit the spigot part at the other end of the waterway to be connected to the socket part at one end of the waterway, interpose a packing between the abutting surfaces, and connect the spigot parts provided on the left and right sides of the socket part downwardly inwardly. One side of the L-shaped bracket is fixed to the groove having a surface that
A joint for a waterway with a socket, characterized in that the joint is engaged with a recess formed on both left and right outer surfaces of the spigot portion and having a surface that slopes upward toward the end.