CN212107396U

CN212107396U - Reducing four-way pipe joint for fire-fighting water supply system

Info

Publication number: CN212107396U
Application number: CN202020748220.3U
Authority: CN
Inventors: 周森洪; 唐军; 张晰谋
Original assignee: Shanghai Yuanzhou Pipe Technology Co ltd
Current assignee: Shanghai Yuanzhou Pipe Technology Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-08
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses a reducing four-way pipe joint for a fire-fighting water supply system, which comprises a main pipe and two auxiliary pipes, wherein the two pipe holes of the main pipe are equal-diameter pipe diameters or different-diameter pipe diameters; because in the automatic sprinkler system design standard, the shower head quantity that the pipeline of every specification was taken differs, leads to the connection of pipeline to need have a plurality of reducing to appear, the utility model discloses set up different reducing four-way pipes according to the flow configuration of pipe network, effectively satisfied the pipe network and to the design of a plurality of reducing, need not increase during the reducing and mend the core, the utility model has the advantages of save material, economize space, non-deformable or damage, easy installation, reduce material cost and alleviate intensity of labour.

Description

Reducing four-way pipe joint for fire-fighting water supply system

Technical Field

The utility model belongs to the technical field of the fire control water supply system technique and specifically relates to a reducing cross coupling for fire control water supply system.

Background

The design of the pipeline and the joint of the fire-fighting automatic water-spraying fire-extinguishing system in the prior art is the galvanized steel pipe, and the galvanized steel pipe is very easy to corrode, so that a plurality of fire-fighting pipelines are seriously corroded, and a spray head is blocked by iron rust when a fire disaster happens, so that water cannot be sprayed to fight the fire in time, and a large fire disaster occurs; galvanized steel pipe installation and maintenance are inconvenient, and the connection between the steel pipe needs the mantle fiber to be connected, has increased a large amount of costs of labor, and the efficiency of construction is not high, and sealed degree of difficulty is big, has the potential safety hazard. Because of the restriction of galvanized steel pipe production technology, the four-way pipe of prior art is mostly the constant diameter pipe, need add when reducing and mend the core, increases and mends the core and not only increases a part, once sealed more moreover, mends the core and still needs the mantle fiber to connect, and the mantle fiber makes the pipe wall attenuation, leads to the cost-push and has the potential safety hazard that the joint corrodes the leakage easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reducing four-way pipe joint for a fire-fighting water supply system aiming at the difference of the prior art, the utility model adopts two pipe holes of a main pipe as equal diameter pipe diameter or reducing pipe diameter, and two pipe holes of an auxiliary pipe as equal diameter pipe diameter or reducing pipe diameter; because in the automatic sprinkler system design standard, the shower head quantity that the pipeline of every specification was taken differs, leads to the connection of pipeline to need have a plurality of reducing to appear, the utility model discloses set up different reducing four-way pipes according to the flow configuration of pipe network, effectively satisfied the pipe network and to the design of a plurality of reducing, need not increase during the reducing and mend the core, the utility model has the advantages of save material, economize space, non-deformable or damage, easy installation, reduce material cost and alleviate intensity of labour.

Realize the utility model discloses the concrete technical scheme of purpose is:

a reducing cross pipe joint for a fire-fighting water supply system is characterized in that two pipe holes of a main pipe are of equal-diameter pipe diameters or different-diameter pipe diameters, and two pipe holes of an auxiliary pipe are of equal-diameter pipe diameters or different-diameter pipe diameters;

a main pipe stopping step is arranged in the pipe hole of the main pipe, and an auxiliary pipe stopping step is arranged in the pipe hole of the auxiliary pipe;

the pipe hole of the main pipe and the pipe hole of the auxiliary pipe are unthreaded holes;

the unthreaded hole of the main pipe and the unthreaded hole of the auxiliary pipe are both provided with a horn-mouth-shaped taper angle alpha of 2-4 degrees.

The main pipe retaining step of the main pipe and the auxiliary pipe retaining step of the auxiliary pipe are both formed by annular rings with rectangular sections, and the annular rings are arranged at the positions of the inner intersecting lines of the main pipe and the pipe holes of the auxiliary pipe.

And a transition circular arc R of R3-R8 mm is arranged on an outer intersecting line of the main pipe and the auxiliary pipe.

The inner surfaces of the unthreaded holes of the main pipe and the auxiliary pipe are connected with other pipes in a plug-in cold melting mode by glue.

The four-way pipe is formed by a mould and injection molding.

The utility model adopts the two pipe holes of the main pipe as equal diameter pipe diameter or different diameter pipe diameter, and the two pipe holes of the auxiliary pipe are equal diameter pipe diameter or different diameter pipe diameter; because in the automatic sprinkler system design standard, the shower head quantity that the pipeline of every specification was taken differs, leads to the connection of pipeline to need have a plurality of reducing to appear, the utility model discloses set up different reducing four-way pipes according to the flow configuration of pipe network, effectively satisfied the pipe network and to the design of a plurality of reducing, need not increase during the reducing and mend the core, the utility model has the advantages of save material, economize space, non-deformable or damage, easy installation, reduce material cost and alleviate intensity of labour.

Drawings

FIG. 1 is a schematic structural view of a main pipe with equal diameter and an auxiliary pipe with equal diameter;

FIG. 2 is a schematic structural view of a main pipe with a constant diameter and an auxiliary pipe with a different diameter;

FIG. 3 is a schematic structural view of the main pipe with different diameter and the auxiliary pipe with different diameter.

Detailed Description

Referring to fig. 1, 2 and 3, the four-way pipe 1 of the present invention is a pipe joint with four communicating holes as the center and arranged in a cross shape, the two communicating holes are a main pipe 11 and the two communicating holes are an auxiliary pipe 12, the two communicating holes of the main pipe 11 are equal-diameter pipe diameters or different-diameter pipe diameters, and the two communicating holes of the auxiliary pipe 12 are equal-diameter pipe diameters or different-diameter pipe diameters;

a main pipe stopping step 111 is arranged in the pipe hole of the main pipe 11, and an auxiliary pipe stopping step 121 is arranged in the pipe hole of the auxiliary pipe 12;

the pipe hole of the main pipe 11 and the pipe hole of the auxiliary pipe 12 are unthreaded holes;

the unthreaded hole of the main pipe 11 and the unthreaded hole of the auxiliary pipe 12 are both provided with a horn-mouth-shaped taper angle alpha of 2-4 degrees.

Referring to fig. 1, 2 and 3, the main pipe retaining step 111 of the main pipe 11 and the auxiliary pipe retaining step 121 of the auxiliary pipe 12 are both formed by annular rings with rectangular cross sections, and the annular rings are arranged at the positions of the internal intersecting lines of the pipe holes of the main pipe 11 and the auxiliary pipe 12.

Referring to fig. 1, 2 and 3, a transition arc R of R3-R8 mm is arranged on an outer intersecting line where the main pipe 11 and the auxiliary pipe 12 intersect.

Referring to fig. 1, 2 and 3, the inner surfaces of the unthreaded holes of the main pipe 11 and the auxiliary pipe 12 are connected with other pipes in a plug-in cold melting mode by glue.

The four-way pipe 1 is formed by a mould and injection molding.

The utility model discloses a use like this:

referring to fig. 1, 2 and 3, the utility model is used for reducing cross coupling of fire-fighting water supply system, which meets the requirements of automatic water-spraying fire-extinguishing system construction and acceptance specification (GB 50084-2017) (GB/T5135.19-2010).

The utility model discloses a be responsible for two tube holes of 11 and be the reducing pipe diameter or reducing pipe diameter, adopt two tube holes that attach pipe 12 to produce the reducing cross coupling of various different specifications for the design of reducing pipe diameter or reducing pipe diameter, according to fire control water supply system's design.

Referring to fig. 1, fig. 1 shows the structure design of the main pipe 11 of the present invention with equal diameter pipe diameter and the auxiliary pipe 12 with equal diameter pipe diameter.

Referring to fig. 2, fig. 2 shows the main pipe 11 of the present invention is of an equal diameter pipe diameter, and the auxiliary pipe 12 is of a different diameter pipe diameter.

Referring to fig. 3, fig. 3 shows the main pipe 11 of the present invention is a reducing pipe diameter, and the auxiliary pipe 12 is a structural design of reducing pipe diameter.

The utility model discloses adopt plug-in type cold melt glue to be connected with being connected of other tubular products, the utility model discloses need not mantle fiber with being connected of other tubular products, avoided because the mantle fiber leads to the risk of pipe wall attenuation, intensity reduction.

Referring to fig. 1, 2 and 3, in order to facilitate the insertion of other pipes into the unthreaded hole of the main pipe 11 or the unthreaded hole of the auxiliary pipe 12, the present invention provides a taper angle α of 2-4 ° in the unthreaded hole of the main pipe 11 and the unthreaded hole of the auxiliary pipe 12.

Referring to fig. 1, 2 and 3, in order to enhance the strength of the intersection between the main pipe 11 and the auxiliary pipe 12 and prevent stress concentration, the present invention is provided with a main pipe stopping step 111 in the pipe hole of the main pipe 11, and an auxiliary pipe stopping step 121 in the pipe hole of the auxiliary pipe 12, wherein the main pipe stopping step 111 and the auxiliary pipe stopping step 121 are both formed by an annular ring with a rectangular cross section, and the annular ring is arranged at the inner intersecting line of the pipe holes of the main pipe 11 and the auxiliary pipe 12; the utility model discloses still set up the excessive circular arc R of R3 ~ R8mm on being responsible for the outer intersecting line that 11 and accessory pipe 12 intersect.

Referring to fig. 1, fig. 2 and fig. 3, in addition, when the present invention is connected with other pipes by cold melting glue, the main pipe stop step 111 and the auxiliary pipe stop step 121 are arranged to prevent the pipe from being inserted through the head and preventing the glue from leaking to the center of the four-way pipe 1.

The utility model discloses by mould and injection moulding for the reducing structure one shot forming of four-way pipe 1 does not have the seam, has left out and has mended the core, has changed traditionally by mending the state that the core comes the reducing. The utility model has the advantages of save material, save space, non-deformable or damage, easy installation reduces material cost and alleviates intensity of labour.

Claims

1. A reducing four-way pipe joint for a fire-fighting water supply system is characterized in that a four-way pipe (1) is a pipe joint with communicated centers and four pipe holes arranged in a cross shape, the two pipe holes are vertically communicated to form a main pipe (11), and the two pipe holes are horizontally communicated to form an auxiliary pipe (12), the two pipe holes of the main pipe (11) are of equal-diameter pipe diameter or different-diameter pipe diameter, and the two pipe holes of the auxiliary pipe (12) are of equal-diameter pipe diameter or different-diameter pipe diameter;

a main pipe stopping step (111) is arranged in the pipe hole of the main pipe (11), and an auxiliary pipe stopping step (121) is arranged in the pipe hole of the auxiliary pipe (12);

the pipe hole of the main pipe (11) and the pipe hole of the auxiliary pipe (12) are unthreaded holes;

the unthreaded hole of the main pipe (11) and the unthreaded hole of the auxiliary pipe (12) are both provided with a horn-mouth-shaped taper angle alpha of 2-4 degrees.

2. The reducing four-way pipe joint for a fire service water supply system according to claim 1, wherein the main pipe stopping step (111) of the main pipe (11) and the auxiliary pipe stopping step (121) of the auxiliary pipe (12) are both formed by annular rings with rectangular cross sections, and the annular rings are arranged at the inner intersecting lines of the pipe holes of the main pipe (11) and the auxiliary pipe (12).

3. The reducing cross joint for the fire service water supply system according to claim 1, wherein the outer intersecting line of the main pipe (11) and the auxiliary pipe (12) is provided with a transition arc R of R3-R8 mm.

4. The reducing cross pipe joint for the fire-fighting water supply system according to claim 1, wherein the inner surfaces of the unthreaded holes of the main pipe (11) and the auxiliary pipe (12) are in plug-in cold-melt connection with other pipes by glue.

5. A reducing cross pipe joint for fire fighting water supply system according to claim 1, characterized in that the cross pipe (1) is formed by a mold and injection molding.