CN213333006U

CN213333006U - Nodular cast iron pipe fitting structure for water supply pipeline

Info

Publication number: CN213333006U
Application number: CN202021797246.3U
Authority: CN
Inventors: 李伟兵; 李卫涛
Original assignee: Qingdao Hengxingyuan Water Supply Equipment Co ltd
Current assignee: Qingdao Hengxingyuan Water Supply Equipment Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-06-01
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a nodular cast iron pipe fitting structure for water supply pipe, including two pipe connection heads, two the equal fixedly connected with vertical pipe of one end that the pipe connection head is close, two fixedly connected with arc tube, two between the vertical pipe all run through on the pipe connection head be equipped with the communicating opening of vertical pipe, two the inner wall of annular face all is equipped with the catching groove, the inner wall of arc tube outer arc part is equipped with rather than the arc reinforcing plate that offsets, the equal fixedly connected with metal strip in both ends of arc reinforcing plate, two the equal fixedly connected with fixture block of one end that metal strip and arc reinforcing plate carried on the back mutually, two the fixture block is located two catching grooves respectively. The utility model discloses rational in infrastructure, can strengthen the processing to arc part on the arc venturi tube through the arc reinforcing plate, make its impact and the wearing and tearing that are difficult for receiving gravel and sand, increase its life, and be convenient for change the arc reinforcing plate, the economy that consumes is less, changes convenient simple swift.

Description

Nodular cast iron pipe fitting structure for water supply pipeline

Technical Field

The utility model relates to a water supply pipe technical field especially relates to a nodular cast iron pipe fitting structure for water supply pipe.

Background

The nodular cast iron pipe is added into molten iron before casting by using a magnesium or rare earth magnesium combined gold nodulizer, so that graphite is nodulized, stress concentration is reduced, and the pipe has the advantages of high strength, high elongation, impact resistance, corrosion resistance, good sealing property and the like; the inner wall adopts a cement mortar lining, so that the water delivery environment of the pipeline is improved, the water supply capacity is improved, and the energy consumption is reduced; the pipe orifice adopts a flexible interface, and the pipe has larger elongation rate (more than 10 percent), so that the flexibility of the pipeline is better, the pipe can work together with soil around the pipeline in the buried pipeline, the stress state of the pipeline is improved, and the reliability of the operation of a pipe network is improved.

The arc-shaped part of the existing double-bell-head elbow pipe fitting which is used for supplying water and is made of nodular cast iron is rarely reinforced, if water without impurities is directly conveyed, the impact and friction of the arc-shaped part of the pipeline on the water are small, but if the water containing sand and stone is conveyed, the impact and friction of the sand and stone on the arc-shaped part of the pipeline are greatly increased, so that the arc-shaped part of the pipe fitting is seriously rubbed to be leaked or scrapped; aiming at the defects of the prior art, the nodular cast iron pipe fitting structure for the water supply pipeline is designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the nodular cast iron pipe fitting structure for water supply pipe that proposes, it can strengthen the processing to arc part on the arc venturi tube through the arc reinforcing plate, makes its impact and the wearing and tearing that are difficult for receiving gravel and sand, increases its life, and is convenient for change the arc reinforcing plate, and the economy that consumes is less, changes convenient and simple swift.

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

a nodular cast iron pipe fitting structure for a water supply pipeline comprises two pipeline connectors, wherein one end close to each other of the two pipeline connectors is fixedly connected with a vertical pipe, an arc pipe is fixedly connected between the two vertical pipes, through holes communicated with the vertical pipes are arranged on the two pipeline connectors in a penetrating way, annular connecting ports are arranged on the inner walls of the two through holes, annular surfaces which are close to the vertical pipe are formed between the annular connecting ports and the through ports, inner walls of the two annular connecting ports are provided with internal threads, inner walls of the two annular surfaces are provided with buckling grooves, the inner wall of the outer arc part of the arc-shaped pipe is provided with an arc-shaped reinforcing plate which is abutted against the inner wall, the two ends of the arc-shaped reinforcing plate are fixedly connected with metal strips, two clamping blocks are fixedly connected with the metal strips and the end, opposite to each other, of the arc-shaped reinforcing plate, and the two clamping blocks are respectively located in the two buckling grooves.

Preferably, the material of pipe connection head, vertical pipe and arc pipe is way nodular cast iron, just pipe connection head, vertical pipe and arc pipe integrated into one piece.

Preferably, the shape of opening is the round platform shape, just the less internal diameter of opening is close to vertical pipe setting and the same with the internal diameter of vertical pipe.

Preferably, the annular connecting port is close to the pipe joint and deviates from the pipe orifice of the vertical pipe, and the inner diameter of the annular connecting port is larger than the maximum inner diameter of the through port.

Preferably, the material of metal strip is stainless steel material, just the metal strip hugs closely with the inner wall of opening.

Preferably, the arc reinforcing plate is made of nodular cast iron, and the thickness of the arc reinforcing plate is 2 mm.

Compared with the prior art, the utility model, its beneficial effect does:

1. when the water that has gravel and sand passes through the arc, gravel and sand can strike on the arc reinforcing plate, can not directly strike on the arc, so realize the protection to the arc, increase the life of pipe fitting.

2. The clamping blocks are shifted, the metal strips are deformed at the moment, so that the two clamping blocks are tilted and separated from the buckling grooves, then a worker can pull the metal strips through a manual operation or a vice at one end, and the arc-shaped reinforcing plate can be detached; during the installation, the direct mount can, when the fixture block was relative with the catching groove, the fixture block of one end became because of the metal strip is reset, so the fixture block card is in the catching groove, so realize the installation to the arc reinforcing plate, easy operation is convenient.

3. When connecting pipe and internal thread threaded connection accomplished, just in time opposite with the annular face this moment, so outside connecting pipe can carry on spacingly to the fixture block, need not to establish fixing device in addition, and the practicality is good.

To sum up, the utility model discloses rational in infrastructure, can strengthen the processing to arc part on the arc venturi tube through the arc reinforcing plate, make its impact and the wearing and tearing that are difficult for receiving gravel and sand, increase its life, and be convenient for change the arc reinforcing plate, the economy that consumes is less, changes convenient and simple swift.

Drawings

Fig. 1 is a cross-sectional view of a nodular cast iron pipe fitting structure for a water supply pipeline provided by the utility model;

fig. 2 is a side view of a part of the structure of the nodular cast iron pipe fitting for the water supply pipeline provided by the utility model.

In the figure: 1 pipe connection head, 2 vertical pipes, 3 arc pipes, 4 openings, 5 annular connectors, 6 internal threads, 7 arc reinforcing plates, 8 metal strips, 9 annular surfaces, 10 clamping blocks and 11 buckling grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a nodular cast iron pipe fitting structure for water supply pipeline, includes two pipe connection heads 1, the equal fixedly connected with vertical pipe 2 of one end that two pipe connection heads 1 are close, fixedly connected with arc tube 3 between two vertical pipes 2, the material of pipe connection head 1, vertical pipe 2 and arc tube 3 is for saying nodular cast iron, and pipe connection head 1, vertical pipe 2 and arc tube 3 integrated into one piece, increase holistic steadiness.

The two pipeline connectors 1 are respectively provided with a through hole 4 communicated with the vertical pipe 2 in a penetrating way, the through holes 4 are in a circular truncated cone shape, and the smaller inner diameter of the through holes 4 is arranged close to the vertical pipe 2 and is the same as the inner diameter of the vertical pipe 2; the inner wall of two ports 4 all is equipped with annular connector 5, forms the annular face 9 that is close to vertical pipe 2 and sets up between annular connector 5 and the port 4, and the mouth of pipe that is close to pipe connection head 1 and deviates from vertical pipe 2 of annular connector 5 sets up, and the internal diameter of annular connector 5 is greater than the biggest internal diameter of port 4, can locate the installation seal pad at annular face 9.

The inner walls of the two annular connectors 5 are provided with internal threads 6, so that the connectors can be conveniently connected with external pipelines; the inner walls of the two annular surfaces 9 are provided with catching grooves 11, the inner wall of the outer arc part of the arc-shaped pipe 3 is provided with an arc-shaped reinforcing plate 7 which is abutted against the inner wall, the arc-shaped reinforcing plate 7 is made of nodular cast iron, and the thickness of the arc-shaped reinforcing plate 7 is 2 mm; both ends of the arc-shaped reinforcing plate 7 are fixedly connected with metal strips 8, the metal strips 8 are made of stainless steel, and the metal strips 8 are tightly attached to the inner wall of the through hole 4; two equal fixedly connected with fixture block 10 in the one end that metal strip 8 and arc reinforcing plate 7 carried on the back mutually, two fixture blocks 10 are located two catching grooves 11 respectively.

The utility model discloses in, install rather than offsetting arc reinforcing plate 7 through the inner wall at arc pipe 3, when the water that has gravel and sand passes through arc pipe 3, gravel and sand can strike arc reinforcing plate 7 on, can not directly strike arc pipe 3, so realize the protection to arc pipe 3, increase the life of pipe fitting.

When the arc-shaped reinforcing plate 7 needs to be replaced, a worker can detach the connecting pipe connected with the internal thread 6, the clamping block 10 is not limited by an external pipeline any more, then the clamping block 10 is pulled by a flat screwdriver, the metal strip 8 deforms at the moment, the two clamping blocks 10 are tilted and separated from the buckling groove 11, then the worker can pull the metal strip 8 at one end manually or by a vice, and the arc-shaped reinforcing plate 7 can be detached; when the clamping block 10 is opposite to the buckling groove 11, the clamping block 10 at one end is reset due to the deformation of the metal strip 8, so that the clamping block 10 is clamped in the buckling groove 11, the arc-shaped reinforcing plate 7 is installed, and the operation is simple and convenient; then the connecting pipe is installed, when the connecting pipe is connected with the internal thread 6 in a threaded mode, the connecting pipe is just opposite to the annular surface 9, the clamping block 10 can be limited by the connecting pipe outside the connecting pipe, a fixing device does not need to be additionally arranged, and the practicability is good.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A nodular cast iron pipe fitting structure for a water supply pipeline comprises two pipe connectors (1) and is characterized in that one end of each of the two pipe connectors (1) close to each other is fixedly connected with a vertical pipe (2), an arc pipe (3) is fixedly connected between the two vertical pipes (2), through holes (4) communicated with the vertical pipes (2) are formed in the two pipe connectors (1), annular connecting ports (5) are formed in the inner walls of the two through holes (4), annular surfaces (9) close to the vertical pipes (2) are formed between the annular connecting ports (5) and the through holes (4), internal threads (6) are formed in the inner walls of the two annular connecting ports (5), catching grooves (11) are formed in the inner walls of the two annular surfaces (9), arc reinforcing plates (7) are arranged on the inner walls of outer arc parts of the arc pipes (3) and offset with the inner walls, the arc reinforcing plate is characterized in that metal strips (8) are fixedly connected to the two ends of the arc reinforcing plate (7), clamping blocks (10) are fixedly connected to the ends, back to each other, of the metal strips (8) and the arc reinforcing plate (7), and the clamping blocks (10) are located in the two buckling grooves (11) respectively.

2. The nodular cast iron pipe fitting structure for the water supply pipeline according to claim 1, wherein the material of the pipe connector (1), the vertical pipe (2) and the arc pipe (3) is nodular cast iron, and the pipe connector (1), the vertical pipe (2) and the arc pipe (3) are integrally formed.

3. The structure of spheroidal graphite cast iron pipe fittings for water supply pipelines according to claim 1, characterized in that the shape of the through openings (4) is a circular truncated cone, and the smaller inner diameter of the through openings (4) is arranged close to the vertical pipe (2) and is the same as the inner diameter of the vertical pipe (2).

4. The structure of spheroidal graphite cast iron pipes for water supply pipelines according to claim 1, characterized in that the annular connecting port (5) is arranged close to the mouth of the pipe connector (1) away from the vertical pipe (2), and the inner diameter of the annular connecting port (5) is greater than the maximum inner diameter of the through opening (4).

5. The structure of spheroidal graphite cast iron pipes for water supply pipes according to claim 1, characterized in that the metal strips (8) are made of stainless steel, and the metal strips (8) are tightly attached to the inner wall of the through openings (4).

6. The structure of spheroidal graphite cast iron pipe fittings for water supply pipelines according to claim 1, characterized in that the material of the arc-shaped reinforcing plate (7) is spheroidal graphite cast iron, and the thickness of the arc-shaped reinforcing plate (7) is 2 mm.