JPH0571570U - Pipe fitting - Google Patents

Abstract

(57) [Summary] [Structure] A tubular joint portion 2 is provided to surround the abutting ends 7 of adjacent pipes 1 in a butted state. Then, the support portion 18 that supports the joint portion 2 is continuously provided to the joint portion 2 along the longitudinal direction thereof, and is formed to have a width smaller than the diameter of the joint portion 2 in plan view. A mounting portion 19 for the base 17 is provided. [Effect] The production cost can be reduced, the parts can be easily managed, the man-hours can be reduced, and the durability of the connecting portion can be improved. It is possible to provide a pipe joint that can also be attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pipe joint.

[0002]

[Prior Art]

 Conventionally, the above-mentioned pipe joint has been composed of only a joint portion for joining the abutting ends of adjacent pipes to each other, such as a flange joint. Then, a supporting portion for supporting the pipe in the joined state is provided as a member different from the joint portion, and the pipe is configured to be supported at a position other than the connecting portion of both pipes. ..

[0003]

[Problems to be solved by the device]

 However, according to the above configuration, since the supporting member for supporting the pipe is provided as a member different from the joint portion, the number of parts increases, the production cost increases, and the parts management is troublesome. There was a drawback that it cost. Further, since the pipe in the joined state is configured to be supported by the supporting member at a place other than the connecting portion of both pipes, when an external force acts on the pipe, a large bending moment is applied to the connecting portion. However, there are disadvantages that the connecting parts are more likely to be damaged and that the work of joining the pipes and the work of installing the pipes by the support member must be performed separately, which increases the number of man-hours. there were. The present invention can solve the above-mentioned conventional drawbacks, reduce the production cost, facilitate the management of parts, and increase the strength of the connecting portion of both pipes against external force. An object of the present invention is to provide a pipe joint that can reduce

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a pipe joint according to the present invention is provided with a tubular joint portion surrounding each of the abutting ends of adjacent pipes and surrounding them, and A supporting portion to be supported is connected to the joint portion along the longitudinal direction thereof and is formed to have a width smaller than the diameter of the joint portion in plan view, and the supporting portion is provided with a mounting portion for the base. It has the following characteristics and effects.

[0005]

[Action]

 That is, by providing a support portion for supporting the tubular joint portion in a continuous manner to the support portion, and providing the support portion with a mounting portion for the base, the joint portion, the support portion, and the mounting portion for the base are provided. Since they are integrated, the number of parts can be reduced and the work of joining the pipes and the work of installing the pipes by the support member can be performed simultaneously. Further, with the above configuration, the pipe is fixed to the base at the same position as the connecting portion of both pipes, and the joint end portions of the both pipes are surrounded by the joint portion, so that both pipes with respect to the bending moment are fixed. The strength of the connecting portion of the pipe can be improved. In this case, since the support part that supports the joint part is connected to the joint part along the longitudinal direction of the joint part, the connection of both pipes with respect to the bending moment can be compared to the case of simply supporting the joint part of both pipes. The strength of the club can be further improved. As a result, even if an external force acts on the joined pipes and a bending moment acts on the joints, the joints of both pipes can be made less likely to be damaged. Then, for example, the inner surface of the joint portion is formed into a tapered surface having a smaller diameter toward the end portion side, and a protruding portion protruding in the radial direction is provided at each of the abutting end portions of adjacent pipes. Butt ends of the pipes to be abutted to each other, and they are surrounded by the joint portion, and a rubber packing is used to seal between the joint portion and the two pipes, and the space is filled with mortar. When a tensile force acts on the pipe, a compressive force acts on the mortar due to the cooperation of the above-mentioned protrusion and the tapered surface. In such a case, in general, solidified mortar is However, due to the well-known fact that it can withstand much more force than it does against shearing and adhesive forces, the connection between the two pipes constructed as described above is also greater than the tensile force. Endures any force Bets can be, consequently, the strength of the structure of the connecting portion of the two pipe can be greatly improved. Further, for example, if a vibration-proof mat is provided at the bottom of the mounting portion, it is possible to absorb vibrations acting on the connecting portion and reduce the load of the connecting portion against external force. Since the support portion is formed to have a width smaller than the diameter of the joint portion in a plan view, for example, when a bolt insertion hole is to be formed in the attachment portion, the attachment hole should be located on the axial side of the pipe. The width of the mounting portion can be reduced in plan view.

[0006]

[Effect of the device]

 Therefore, the number of parts can be reduced, so that the production cost can be reduced, the parts can be easily managed, and the pipe joining work and the pipe installation work by the support member can be performed at the same time. Therefore, the man-hours can be reduced, and the strength of the connecting portion of both pipes against bending moment can be greatly improved. Therefore, the durability of the connecting portion can be improved, and the mounting in plan view can be improved. Since the width of the part can be reduced, it was possible to provide a pipe joint that can be installed even in a narrow space.

[0007]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 4, for example, in a residential area such as a new town, one garbage disposal post 3 is arranged for every 5 to 6 houses, and one garbage collection post 3 is arranged for each new town. One garbage collection station 4 is provided, and each garbage input post 3 and one garbage collection station 4 are connected by a transport pipe 5, and a suction device 6 is provided in the garbage collection station 4 to be loaded into each garbage input post 3. The waste collection facility for the new town is configured so that the collected waste is sucked to the waste collection station 4 side through the transportation pipe 5 and all the waste discharged from the new town is automatically collected in one place. There is.

The transport pipe 5 is formed by connecting a large number of cast iron transport pipes (an example of pipes) that are adjacent to each other through a pipe joint 16, and is provided in a tunnel stretched underground in New Town. It is housed together with the water pipe 22 and the electric pipe 23. The pipe joint 16 is mounted on an H-shaped steel pedestal (an example of a base) 17 in the tunnel, and is bolted thereto. The present invention relates to the pipe joint 16, and the structure of the pipe joint 16 and the structure of the connecting portion connected by the pipe joint 16 will be described below.

As shown in FIGS. 1, 2, and 3, the pipe joint 16 includes a horizontal tubular joint portion 2, a stand-shaped support portion 18 that supports the joint portion 2, and a pedestal 17. And a mounting portion 19 for.

The joint portion 2 surrounds the abutting end portions 7 of adjacent conveying pipes (an example of pipes) in a state where the abutting end portions 7 abut each other. The inner and outer surfaces of the joint portions 2 have smaller diameters toward the end portions. It is formed on the tapered surface 12. The support portion 18 is continuously provided in the joint portion 2 along the longitudinal direction thereof, and has a width in plan view smaller than the diameter of the joint portion 2. The mounting portion 19 is formed by forming a plurality of bolt insertion holes 21 on a flat plate portion that is continuous with the support portion 18, and a vibration-proof mat 24 is attached over the entire surface of the bottom portion thereof. I am doing it.

When the carrier pipes 1 are joined together using the pipe joint 2 having the above-mentioned configuration, the carrier pipes 1 are surrounded by the joint portion 2 in a state where the butted ends 7 of the two carrier pipes 1 are butted, and On both sides of the portion 2, ring-shaped rubber packings 8 are externally attached and adhered to the two conveying pipes 1, and the rubber packings 8 seal the spaces S between the butt ends 7 and the joint portion 2. The space S is filled with a non-shrinkable mortar 13 and the mortar 13 is solidified. Each of the adjacent end portions 7 of the adjacent conveying pipes 1 is provided with a flange-shaped protruding portion 11 that protrudes in the radial direction over the entire circumference, and the joint portion 2 has a lower portion of one end portion. A mortar injection hole 9 and an air vent hole 10 which communicate the outside of the joint portion 2 and the space S in the radial direction are separately formed in the upper part of the other end.

The rubber packing 8 is made of styrene-butadiene rubber, and is formed thick so as to prevent the mortar 13 filled in the space S from leaking.

The procedure for joining the two conveying pipes 1 is as follows. First, the pipe joint 16 is bolted to the pedestal 17. Then, at the butt ends of the two transfer pipes 1, the rubber packings 8 are respectively fitted to the positions that are inserted from the end surface by a length of ½ of the total length of the joint portion of the pipe joint. 1 is fitted into the joint portion 2 from both sides, and both butted end portions 7 are butted. Next, the mortar 13 is injected from the mortar injection hole 9. With the injection, the air in the space S is discharged from the air vent hole 10. The mortar 13 is sufficiently filled so that there is no gap in the space S. By disposing the mortar injection hole 9 and the air vent hole 10 separately at both ends of the joint portion 2 as described above, uneven distribution of the mortar 13 at the time of filling can be prevented. The solidification of the mortar 13 joins the two transfer pipes 1 to each other.

[Other Embodiments] The transport pipe 1 is not limited to transporting dust, but may be used for water and sewerage, electrical piping, or the like.

The projecting portion 11 may be a separate body from the transport pipe 1, such as a rubber ring externally attached and bonded.

As shown in FIG. 5, a step portion 14 may be provided on the rubber packing 8, and the step portion 14 may support the joint portion 2. By doing so, the positioning of the joint portion 2 can be performed more easily and reliably. Further, as shown in FIG. 6, the joint portion 2 may be externally fitted to the rubber packing 8.

A packing may be fitted on both of the protrusions 11.

The joint portion 2 may be divided in the radial direction.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a perspective view of a pipe joint.

FIG. 2 is a cross-sectional view of a pipe joint.

FIG. 3 is a vertical sectional view of a pipe joint.

[Figure 4] Overall view of garbage collection equipment

FIG. 5 is a vertical sectional view of another embodiment.

FIG. 6 is a vertical sectional view of another embodiment.

[Explanation of symbols]

 1 Pipe 2 Joint Part 7 Butt End 12 Tapered Surface 17 Base 18 Supporting Part 19 Mounting Part 24 Vibration Isolation Mat

Claims (3)

[Scope of utility model registration request] 1. A tubular joint part (2) surrounding the abutting ends (7) of adjacent pipes (1) is provided to support the joint part (2). The support portion (18) is continuously provided on the joint portion (2) along the longitudinal direction thereof, and is formed to have a width smaller than the diameter of the joint portion (2) in a plan view. A pipe joint provided with a mounting portion (19) for the base (17). 2. The inner surface of the joint portion (2) is formed into a tapered surface (12) having a smaller diameter toward the end side.
The described pipe fitting. 3. The pipe joint according to claim 1, wherein a vibration-proof mat (24) is provided on the bottom of the mounting portion (19).