CN203686408U - Sealing pipe connector mounted on sewer pipeline - Google Patents

Abstract

The utility model relates to a sealed pipe joint installed on a sewer pipe. The pipe joint has a hollow part for connecting upper and lower pipe parts. The two ends of the hollow part are respectively provided with an upper limit ring and a lower limit ring which are radially inwardly recessed. ring, and the upper limit ring is provided with an external thread and a screwing snap ring provided with an internal thread that can be screwed on the external thread. The sealing pipe joint adopts a twisted snap ring to fix the bellows on the hollow part, while the sewer pipe and the hollow part are connected by an elastic sealing ring, so that the connection between the hollow part, the bellows and the sewer pipe is very firm, and there will be no leakage. The smell of the sewer pipes is a problem.

Description

Sealed pipe joints installed on sewer pipes

technical field

The utility model relates to a sealing pipe joint installed on a sewer pipe.

Background technique

The sink outlets in bathrooms and kitchens in residential buildings are usually connected to the sewer pipes with corrugated pipe fittings. Because the corrugated pipe fittings will be elongated in the process of conveying water, and there will be large fluctuations, while the sewer pipes are usually made of steel pipes, cast iron pipes or plastic pipes, which have great rigidity, so the corrugated pipe fittings and sewer pipes It is not easy to adopt a fixed connection between them. In the prior art, it is generally used to directly insert the output end of the corrugated pipe fitting into the port of the sewer pipe, and there is a certain gap between the two. Because the sewage discharged from the sewer pipe can produce odor, and the odor will return from it when the sewer pipe stops draining, so this connection method will cause serious pollution to the surrounding environment.

In order to solve the problems referred to above, the name of the Chinese Patent No. 2644549Y announcement is called "the leakage-proof peculiar smell pipe joint of the sewer bellows in the building" and proposes a solution. The pipe joint adopts a reducing tube, which is composed of a large-diameter tube and a small-diameter tube connected with the large-diameter tube, and a large-diameter The convex edge of the tube. This kind of pipe joint connects the large-diameter pipe with the sewer pipe, and connects the small-diameter pipe with the corrugated pipe. The convex edge can prevent the pipe joint from falling into the sewer pipe. Although this kind of pipe joint can prevent the odor in the sewer pipe from coming out, because the pipe joint is not fixedly connected with the sewer pipe and the corrugated pipe, part of the odor in the sewer pipe will also be reflected. At the same time, because the pipe joint is not fixed, the fluctuations generated during the drainage process will also reflect the odor in the sewer pipe.

In addition, the Chinese Patent No. 203346960U announcement titled "A Socket Type Downpipe Assembly" also proposes a solution. The socket-type downpipe assembly includes a straight pipe 1 and an elastic rubber ring arranged in the straight pipe 1. There is an annular groove on the inner wall of one end of the straight pipe 1. The elastic rubber ring is located in the annular groove. The elastic rubber ring includes an embedded The cylindrical positioning part is located in the annular groove, and the inner wall of the positioning part has a tapered deformation part protruding from the inner wall of the positioning part. Its intention is to make use of the positioning part, the deformation part and the reinforcing block provided on the elastic rubber ring to make the connection between the elastic rubber ring and the sewer pipe tightly, and to play a sealing effect, so as to prevent the odor in the sewer pipe from coming out. However, in the process of conveying water, the corrugated pipe has a large wave force, and the tightest seal cannot be achieved simply by relying on the elastic rubber ring, and the two are also easy to separate. Therefore, the sealing of this socket-type downpipe assembly The effect remains to be further explored.

Contents of the invention

The task of the utility model is to provide a sealing pipe joint installed on the sewer pipe which solves the problem of unsatisfactory sealing effect by twisting and clamping the corrugated pipe after deformation.

The sealing pipe joint installed on the sewer pipeline proposed by the utility model has a hollow part used to connect the upper and lower pipe parts. The bit ring is provided with an external thread and a screwing snap ring provided with an internal thread which can be screwed on the external thread.

The hollow member is provided with a radially outwardly extending convex ring between the upper limit ring and the lower limit ring, and on the outer surface of the convex ring is provided with projections at equal intervals.

The upper limit ring is composed of a first upper limit ring and a second upper limit ring whose diameter is smaller than that of the first upper limit ring, and the surface of the second upper limit ring is an inclined surface. An annular ferrule having the same surface shape as the second upper limit ring is arranged on the second upper limit ring.

The lower limit ring is composed of a first lower limit ring and a second lower limit ring with a diameter smaller than the first lower limit ring, and a concave ring is arranged on the surface of the second lower limit ring, and an elastic ring is installed in the concave ring. sealing ring.

The sealing pipe joint installed on the sewer pipe proposed by the utility model adopts a screw snap ring to fix the bellows on the hollow part, and the sewer pipe and the hollow part are connected by an elastic sealing ring, so that the hollow part is connected with the bellows and the sewer pipe. The connection between the two is very firm, even if the wave force of the bellows is large, it is not easy to separate them. Therefore, the sealing effect of connecting the bellows and the sewer pipe with this kind of pipe joint is very good, and there will be no odor from the sewer pipe. question.

Description of drawings:

Accompanying drawing 1 is the partial cross-sectional structure schematic diagram of an embodiment of the sealed pipe joint installed on the sewer pipeline proposed by the utility model.

Detailed ways:

Referring to Fig. 1, this figure provides the appearance overall structure of an embodiment of the sealed pipe joint installed on the sewer pipeline proposed by the utility model. The pipe joint includes a hollow part 1 , a twisted snap ring 2 , and an annular ferrule 3 . The central region of the hollow member 1 is provided with a radially outwardly extending convex ring 11 , on the outer surface of which convex ring 11 is provided with bumps 12 at equal intervals, and above the convex ring 11 is provided with an upper limit Bit ring, this upper limit ring is made of the first upper limit ring 13 and the second upper limit ring 14 whose diameter is smaller than the first upper limit ring 13, and the surface of the second upper limit ring 14 is an inclined surface; 11 is provided with a lower limit ring, which is composed of a first lower limit ring 15 and a second lower limit ring 16 with a diameter smaller than the first lower limit ring 15, that is, the convex ring 11 is arranged on the upper limit ring. Between and the lower limit ring, and on the surface of the second lower limit ring 16, a concave ring 17 is arranged, and an elastic sealing ring is installed in the concave ring 17. The outer surface of the first upper limit ring 13 is provided with an external thread 18, the inner surface of the screwing snap ring 2 is provided with an internal thread 21, and the outer surface of the screwing snap ring 2 is also provided with projections at equal intervals 22, the bump 22 can conveniently screw the screwing snap ring 2 on the first upper limit ring 13; the outside of the second upper limit ring 14 is installed with an annular ferrule 3 for fixing the bellows 4, the The lower end of the annular ferrule 3 has a radially outwardly extending curved ring 32 and an inclined sleeve 31, while the upper end of the screwing collar 2 has a radially inwardly extending bent portion 23. When the screwing collar 2 is screwed on the second After the upper limit ring 13 is put on, the curved portion 23 on it can be pressed on the bending ring 31, and the inner surface of the annular ferrule 3 is the same shape as the outer surface of the second upper limit ring 14, which is an inclined surface.

When using this pipe joint to connect with the bellows 4 and the sewer pipe 5, the bellows 4 is inserted into the second upper limit ring 14 of the hollow part 1, then the annular ferrule 3 is arranged on the outside of the bellows 4, and then the screw The snap ring 2 is screwed on the first upper limit ring 13 to fix the bellows 4 on the pipe joint, and then the second lower limit ring 16 of the hollow part 1 is inserted into the end of the sewer pipe 5 .

Claims (5)

1. be arranged on the sealed pipe joint on drainage pipeline, it is characterized in that: this pipe joint has the hollow piece for connecting upper and lower pipe fitting, the two ends of this hollow piece are respectively arranged with the upper limit ring and the lower limit ring that radially cave inward, and on upper limit ring, are provided with outside thread and can be screwed in the female snap ring that screws that arranges on outside thread.

2. sealed pipe joint according to claim 1, is characterized in that: described hollow piece is provided with the convex ring extending radially outwardly between upper limit ring and lower limit ring, is provided with projection at equidistant intervals at the outer surface of this convex ring.

3. sealed pipe joint according to claim 1, is characterized in that: the second upper limit ring that described upper limit ring is less than the first upper limit ring by the first upper limit ring and diameter forms, and the surface of the second upper limit ring is plane of inclination.

4. sealed pipe joint according to claim 1, it is characterized in that: the second lower limit ring that described lower limit ring is less than the first lower limit ring by the first lower limit ring and diameter forms, and on the surface of the second lower limit ring, scrobicular ring is set, in this scrobicular ring, elastic seal ring is installed.

5. sealed pipe joint according to claim 3, is characterized in that: on described the second upper limit ring, be provided with the ring-shaped clamping sleeve identical with its surface configuration.

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