CN217899194U

CN217899194U - Iron pipe adapter

Info

Publication number: CN217899194U
Application number: CN202121027862.5U
Authority: CN
Inventors: 韩鹏峰; 陈梦洁; 余鑫栋; 钱功海
Original assignee: Zhejiang Tongzheng Pipe Technology Co ltd
Current assignee: Zhejiang Tongzheng Pipe Technology Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2022-11-25
Anticipated expiration: 2031-05-13

Abstract

The utility model provides an iron pipe crossover sub relates to the pipe connection technology field, including last crossover sub and lower crossover sub. The upper rotary joint comprises an upper rotary main body and an upper rubber ring; the lower adapter comprises a lower adapter body and a lower rubber ring. The upper iron pipe is inserted into the upper transfer main body through the upper rubber ring, and the lower PVC pipe is inserted into the upper transfer main body through the upper bell mouth; the iron pipe positioned at the lower part is sleeved into the lower switching main body by a lower rubber ring, and the PVC pipe positioned at the upper part is inserted into the lower switching main body from the lower bellmouth part. The utility model is used for the connection of cast iron pipe and PVC pipe in the old house transformation, this product can effectively solve the cast iron pipe and explode the pipe infiltration problem, and its usable floor area is little, easy operation, cost are with low costs.

Description

Iron pipe adapter

Technical Field

The utility model relates to an iron pipe crossover sub belongs to pipe connection technical field.

Background

With the rising of the house price, the rising of the life quality of people and the implementation of the government old house reforming policy, most people want to reform the old house. The pipelines in the old house are all cast iron pipes, rust spots are arranged outside the pipelines, the pipelines can continue to age if not replaced during reconstruction, then water can slowly seep outwards from the pipe walls, the water seepage problem occurs, and meanwhile, the cast iron pipes can be exploded due to frequent opening and closing of valves. Therefore, the pipe installation is now performed by replacing the cast iron pipe with the PVC pipe. However, the direct connection between the PVC pipe and the cast iron pipe or the connection between the PVC pipe and the cast iron pipe using other PVC pipe fittings may result in poor sealing performance and water seepage. Aiming at the phenomenon, the product effectively solves the problem of water seepage caused by pipe explosion of the cast iron pipe through a special structure.

The present application was made based on this.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned defect that exists among the prior art, the utility model provides an iron pipe crossover sub for cast iron pipe is connected with the PVC pipe.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an iron pipe adapter comprises an upper adapter for connecting an upper iron pipe and a lower PVC pipe, and a lower adapter for connecting the lower iron pipe and the upper PVC pipe;

the upper adapter comprises an upper adapter main body and an upper rubber ring; the upper connecting body comprises an upper bell mouth part and a non-bell mouth part, and the upper rubber ring is buckled on the non-bell mouth part; the upper iron pipe is inserted into the upper transfer main body through the upper rubber ring, and the lower PVC pipe is inserted into the upper transfer main body through the upper bell mouth;

the lower adapter comprises a lower adapter main body and a lower rubber ring; the lower connecting main body comprises a lower bellmouth part and a lower spigot part, and the lower rubber ring is sleeved on the lower spigot part; the iron pipe positioned at the lower part is sleeved into the lower switching main body by a lower rubber ring, and the PVC pipe positioned at the upper part is inserted into the lower switching main body from the lower bellmouth part.

The utility model provides an optimal scheme, the outside main part turn-ups that is equipped with in non-bellmouth position, go up the rubber ring inwards be equipped with last main part turn-ups complex go up the rubber ring turn-ups. The lower rubber ring flanging plays a role in resisting, and the rubber ring is installed in place when the lower rubber ring flanging is contacted with the lower plane of the socket part of the lower connecting main body.

The utility model provides an optimal scheme, the outer wall of rubber ring is equipped with the zigzag turn-ups down. The outer diameter of the lower rubber ring is slightly larger than the inner diameter of the iron pipe, a certain compression allowance is reserved, the joint of the lower rubber ring and the iron pipe is ensured to be tightly assembled and not to leak water, and the lower rubber ring is inserted into the iron pipe easily during installation. Meanwhile, the outer surface of the lower rubber ring is in a sawtooth shape, so that the sealing performance of the rubber is not reduced, the cost is reduced, and a space is reserved for rubber compression.

The utility model provides an optimal scheme, the inner wall of rubber ring is equipped with the arch down, can improve the reliability that rubber ring and lower grafting main part are connected down.

The utility model provides an optimal scheme, the iron pipe and the rubber ring interference fit down that are located the below, the iron pipe and the last rubber ring interference fit that are located the top. Better sealing effect can be achieved.

The utility model has the advantages of:

the utility model adopts different iron pipe connectors to assemble the cast iron pipe under different conditions, the upper iron pipe is inserted into the upper connector body by the upper rubber ring, and the lower PVC pipe is inserted into the upper connector body by the upper bell mouth; the iron pipe positioned at the lower part is sleeved into the lower switching main body by a lower rubber ring, and the PVC pipe positioned at the upper part is inserted into the lower switching main body from the lower bellmouth part. The utility model discloses iron pipe adapter for cast iron pipe and PVC pipe be connected, its convenience simple to use, cost are with low costs, can effectively prevent the infiltration problem.

Drawings

Fig. 1 is a sectional view of an upper adapter (an upper adapter body assembled with an upper rubber ring) in an iron pipe adapter according to the present embodiment;

FIG. 2 is a cross-sectional view of the lower sub (lower sub body assembled with lower rubber ring) of the iron pipe crossover coupling of the present embodiment;

FIG. 3 is a cross-sectional view showing the assembly of the lower rubber ring in the iron pipe crossover coupling of the present embodiment;

description of the labeling: the upper adapter 100, the upper adapter body 110, the upper socket part 111, the non-socket part 112, the upper body flange 113, the upper rubber ring 120, the upper rubber ring flange 121, the lower adapter 200, the lower adapter body 210, the lower socket part 211, the lower socket part 212, the lower rubber ring 220, the lower rubber ring flange (sawtooth flange) 221, and the protrusion 222.

Detailed Description

In order to make the technical means and the technical effects achieved by the technical means of the present invention clearer and more complete, the following embodiments are provided and are described in detail with reference to the accompanying drawings as follows:

as shown in fig. 1 to 3, the iron pipe conversion joint of the present embodiment includes an upper joint for connecting an upper iron pipe and a lower PVC pipe, and a lower joint for connecting the lower iron pipe and the upper PVC pipe;

the upper rotary joint comprises an upper rotary main body and an upper rubber ring; the upper transfer main body comprises an upper bellmouth part and a non-bellmouth part, and an upper rubber ring is buckled on the non-bellmouth part; the upper iron pipe is inserted into the upper transfer main body through the upper rubber ring, and the lower PVC pipe is inserted into the upper transfer main body through the upper bell mouth;

Preferably, the non-bellmouth part is outwardly provided with an upper main body flange, and the upper rubber ring is inwardly provided with an upper rubber ring flange matched with the upper main body flange. The lower rubber ring flanging plays a role in resisting, and the rubber ring is installed in place when the lower rubber ring flanging is contacted with the lower plane of the socket part of the lower connecting main body.

Preferably, the outer wall of the lower rubber ring is provided with a sawtooth-shaped flange. The outer diameter of the lower rubber ring is slightly larger than the inner diameter of the iron pipe, a certain compression allowance is reserved, the joint of the lower rubber ring and the iron pipe is ensured to be tightly assembled and not to leak water, and the lower rubber ring is inserted into the iron pipe easily during installation. Meanwhile, the outer surface of the lower rubber ring is in a sawtooth shape, so that the sealing performance of the rubber is not reduced, the cost is reduced, and a space is reserved for rubber compression.

The inner wall of the lower rubber ring is provided with a protrusion, so that the connection reliability of the lower rubber ring and the lower connecting main body can be improved.

This embodiment is preferred, and the iron pipe and the rubber ring interference fit that lie in the below, the iron pipe and the last rubber ring interference fit that lie in the top can play better sealed effect.

In the preferred embodiment, the inner diameter of the upper main body flange is D124, and the outer diameter is D130; the inner diameter of the circle of the upper rubber ring close to the flanging of the upper main body is D130; so that the two fit closely. The inner diameter of the upper rubber ring is D107; the inner diameter of the non-bell part is D118, and the inner diameter of the bottom of the non-bell part is D104; the inner diameter of the circle is D118, so that the cast iron pipe can be inserted into the ring without being clamped and can be inserted to the bottom. That round that the internal diameter is D104 is in order when inserting the iron pipe, is convenient for judge whether to insert to the end, and the national standard cast iron pipe internal diameter maximum value is D104 simultaneously, with the utility model discloses an internal diameter D104 is unanimous, can avoid causing the hindrance to rivers. The inner diameter of the upper bellmouth part is D110.

In the preferred embodiment, the length of the upper main body flanging is 12mm, and the thickness is 3mm; the length of the circle of the upper rubber ring flanging close to the upper main body flanging is 13mm, and the thickness of the upper rubber ring flanging is 2.5mm. The design can make the last rubber ring buckle on the main body of transition, make iron pipe and last main body junction leak not water.

In the preferred embodiment, the outer diameter of the socket part of the lower adapter is D88.5, the inner diameter of the non-protruding part of the lower rubber ring is D88.5, and the inner diameter of the protruding part is D85.7. Therefore, the lower connecting main body and the lower rubber ring are convenient and compact to assemble, and the cost is reduced.

The installation method of the present embodiment is as follows:

(1) The upper switching main body, the upper rubber ring, the lower switching main body and the lower rubber ring are assembled in the assembling mode;

(2) When the cast iron pipe is positioned above the upper part, the PVC pipe is coated with glue and inserted into the bell mouth part of the upper adapter, the cast iron pipe is directly inserted into the upper rubber ring of the upper adapter, and the upper rubber ring plays a role in sealing;

(3) When the cast iron pipe is positioned below the PVC pipe, glue is coated on the PVC pipe and the PVC pipe is inserted into the bellmouth part of the lower rotating joint, the lower rotating joint is directly inserted into the cast iron pipe through the lower rubber ring, and the lower rubber ring plays a role in sealing;

this embodiment requires attention to the following problems at the time of installation:

1. when the upper joint body and the upper rubber ring are assembled, the upper joint body and the upper rubber ring are tightly assembled on the upper joint body and the lower rubber ring;

2. when the lower connecting body and the lower rubber ring are assembled, the lower connecting body and the lower rubber ring are assembled together in a tight and seamless manner.

3. The cast iron pipe is inserted into the upper joint and the lower joint and is inserted into the cast iron pipe to the bottom in an aligned mode.

4. The glue bonding surface should be kept clean and free of foreign matters.

5. And waterproof measures are required to be taken in the whole installation environment.

The above-mentioned embodiment is only used for explaining the utility model concept, and not to the limit of the utility model protection, and all utilize this concept to be right the utility model discloses carry out insubstantial change, all shall fall into the scope of protection of the utility model.

The above is a detailed description of the technical solutions provided in connection with the preferred embodiments of the present invention, and it should not be assumed that the embodiments of the present invention are limited to the above description, and it will be apparent to those skilled in the art that the present invention can be implemented in a variety of ways without departing from the spirit and scope of the present invention.

Claims

1. An iron pipe crossover sub which characterized in that: the device comprises an upper rotary joint and a lower rotary joint, wherein the upper rotary joint is used for connecting an iron pipe positioned above and a PVC pipe positioned below, and the lower rotary joint is used for connecting the iron pipe positioned below and the PVC pipe positioned above;

2. An iron pipe crossover joint as defined in claim 1, wherein: the non-bellmouth part is outwards provided with an upper main body flanging, and the upper rubber ring is inwards provided with an upper rubber ring flanging matched with the upper main body flanging.

3. An iron pipe crossover joint as defined in claim 1, wherein: the outer wall of the lower rubber ring is provided with a sawtooth-shaped flanging.

4. An iron pipe crossover joint as defined in claim 1, wherein: the inner wall of the lower rubber ring is provided with a bulge.

5. An iron pipe crossover joint as defined in claim 1, wherein: the iron pipe positioned below is in interference fit with the lower rubber ring, and the iron pipe positioned above is in interference fit with the upper rubber ring.

6. An iron pipe crossover joint as defined in claim 2, wherein: the inner diameter of the upper main body flanging is D124, and the outer diameter of the upper main body flanging is D130; the inner diameter of the circle of the upper rubber ring close to the flanging of the upper main body is D130; the inner diameter of the upper rubber ring is D107; the inner diameter of the non-bell-mouth part is D118, and the inner diameter of the bottom of the non-bell-mouth part is D104; the inner diameter of the upper bellmouth part is D110.

7. The iron pipe crossover sub of claim 2, wherein: the length of the upper main body flanging is 12mm, and the thickness is 3mm; the length of the circle of the upper rubber ring flanging close to the upper main body flanging is 13mm, and the thickness of the upper rubber ring flanging is 2.5mm.

8. The iron pipe crossover joint of claim 4, wherein: the outer diameter of the socket part of the lower adapter is D88.5, the inner diameter of the part without the bulge of the lower rubber ring is D88.5, and the inner diameter of the bulge is D85.7.