JPH04130337U - Tube end shaping ring - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a pipe end shaping ring that does not require skill and can improve workability when connecting sewer pipes flowing into and out of a manhole. [Structure] One end surface is provided with a socket 4a that fits into the vertical end surface of the sewer pipe 2, and the other end surface is provided with an inward flange surface 4b having an inner radius R of the manhole 1, and the outer peripheral surface thereof is a rough surface 4c. The tube end shaping ring 4 was made of synthetic resin or elastomer material.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a pipe end shaping ring, especially for shaping the end of a pipe connecting to a manhole in a sewer pipe. This relates to rings for use.

0002

[Conventional technology]

For example, from the upstream and downstream sides of concrete manholes, etc., When connecting sewage pipes made of vinyl chloride, Figure 6 shows an example of a broken main part. It was constructed using the method shown in the cross-sectional diagram. That is, 1 is a core with an inner radius R. Concrete manhole, 1a is a hole drilled in the wall for pipe insertion, 2 is sewage It's plumbing. The diameter of hole 1a is larger than the diameter of pipe 2, and its machined surface is relatively rough. , insert the vertically cut pipe end into the inner diameter of manhole 1 and insert mortar 3 or It is bonded and fixed using a special adhesive. At this time, the pipe end is the inner diameter of manhole 1. Cut it to fit the inside diameter surface of manhole 1 so that it does not protrude inward, or It was designed to be retracted from the inner diameter surface and joined.

0003

[Problem that the idea aims to solve]

However, as in the latter case, the end of the vertical pipe is pulled in from the inner diameter surface of manhole 1. If the former Scraping the pipe end along the inner diameter surface of manhole 1 requires skill, man-hours, and time. In addition, there was a risk that the work environment would be harmed by dust from the shavings. This idea was made in view of the problems of the conventional examples as described above. Seed construction does not require skill, improves workability, and also has the effect of reinforcing pipe ports. The purpose of this product is to provide a pipe end shaping ring.

0004

[Means to solve the problem]

Therefore, in this invention, the structure of the pipe end shaping ring is made of synthetic resin material or is made of elastomer material, and has a socket on one end that fits with the pipe end, and a socket on the other end. Each manhole is provided with an inward flange portion having a curvature equal to the inner diameter surface of the manhole. The above object is achieved by forming the outer peripheral surface to be rough. It is.

[0005]

[Effect]

Attach the shaping ring with the above configuration to the pipe end, and insert the flange into the manhole. Fix the pipe to the manhole using mortar, etc. while aligning it with the inner diameter arc. By doing so, the purpose can be achieved without the need for post-processing, and the reinforcing effect of the pipe opening can be improved. It also has fruits.

[0006]

【Example】

This invention will be explained below based on examples. Figure 1 shows the pipe end according to this invention. A cutaway cross-sectional view of a manhole connection using an example of a shaping ring, FIG. 2(a), ( b) shows a cross-sectional view and a plan view of the tube end shaping ring. (composition) 1 is a concrete manhole with an inner diameter of radius R, and 2 is a manhole drilled into the wall. A sewer pipe with a vertical pipe end inserted into the hole 1a, 4 is connected to this pipe on one end surface. It has a gently tapered surface for inserting and gluing the vertical pipe end into the socket part 4a. The opposite end surface is a tube end shaping ring having an inward flange surface 4b with a radius of curvature R. , its outer peripheral surface is a rough surface 4c with fine irregularities, such as a sandblasted surface. Made of plastic or elastomeric material. 3 is the pipe 2 and this shaping ring 4. Mortar or adhesive for filling and fixing the gaps between each outer peripheral surface and hole 1a It is.

[0007] Therefore, the pipe end is aligned with the inner diameter surface of the manhole 1 by this shaping ring 4, No post-processing is required. In addition, the outer peripheral surface 4c is a rough surface, so the mortar 3 etc. adheres to it. In addition, the presence of a suitable taper in the socket 4a at the end of the pipe improves its water-stopping properties. It also has the effect of reinforcing the pipe ends.

[0008] (Other examples) 3 to 5 show views of three other embodiments of the tube end shaping ring. The tube end shaping ring 5 in FIG. This is an example of a case where a groove 5a is provided and fitted with the outer circumferential groove provided on the end of the pipe to improve water-stopping performance. The other parts are the same as in 4 above. Figure 4 shows the inside of the socket when the sewer pipe is made of reinforced plastic composite pipe (RCP). This is a half-sectional view of a tube end shaping ring 6 that uses a separate O-ring-shaped rubber packing 7 on the surface. be. In addition, FIG. 5 shows an O-ring at the socket side end of the pipe end shaping ring 4 in order to improve water stoppage performance. A half-sectional view of an example using a ring-shaped rubber ring 8 is shown.

[0009]

[Effect of the idea]

As explained above, according to this invention, the inflow of the manhole into the pipe end shaping ring / By inserting and gluing the end of the outflow pipe, the pipe is aligned with the inner diameter surface of the manhole. Since the opening can be formed, workability is improved without requiring skill, and It also has the effect of reinforcing the pipe opening and improves water-stopping properties.

[Brief explanation of the drawing]

[Figure 1] Broken cross-sectional view of a manhole connection using an example of a pipe end shaping ring

[Figure 2] Cross-sectional view and plan view of the tube end shaping ring

[Figure 3] Another first embodiment of the tube end shaping ring

[Figure 4] Another second embodiment of the tube end shaping ring

[Figure 5] Another third embodiment of the tube end shaping ring

[Figure 6] A cutaway cross-sectional view of essential parts of an example of a conventional connection part

[Explanation of symbols]

1 Manhole 2 Sewer pipe 3 mortar 4 Tube end shaping ring 4a Socket 4b Inward flange surface 4c rough surface R Manhole inner diameter radius

Claims (1)

[Scope of utility model registration request] Claim 1: Made of a synthetic resin material or an elastomer material, it has a socket on one end surface that fits into the pipe end surface, and an inward flange portion having a curvature equal to the inner diameter surface of the manhole on the other end surface, and the outer periphery thereof. A pipe end shaping ring characterized by a rough surface.