CN212131676U - Reducing tee pipe joint for fire-fighting water supply system - Google Patents

Abstract

The utility model discloses a reducing tee coupling for fire control water supply system, two tube holes including being responsible for are equal footpath pipe diameter or reducing pipe diameter, and the tube hole that attaches the pipe is the unthreaded hole or has inlayed the hole of swivel nut, and is equipped with the internal thread on the swivel nut. 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 three-way pipes according to the flow configuration of pipe network, effectively satisfied the pipe network to the design of a plurality of reducing, need not increase during the reducing and mend the core, but attach the internal thread lug connection shower head of pipe upper thread insert. 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.

Description

Reducing tee 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 tee 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 three-way pipe of prior art is mostly the reducing pipe, need add the benefit core during the reducing, 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 the difference of prior art and the reducing tee coupling who provides for fire control water supply system, the utility model discloses a two tube holes of being responsible for are equal footpath pipe diameter or reducing pipe diameter, and the tube hole that attaches the pipe is the unthreaded hole or has inlayed the hole of swivel nut, and is equipped with the internal thread on the swivel nut. 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 three-way pipes according to the flow configuration of pipe network, effectively satisfied the pipe network to the design of a plurality of reducing, need not increase during the reducing and mend the core, but attach the internal thread lug connection shower head of pipe upper thread insert. 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.

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

a reducing tee 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;

the pipe hole of the main pipe is a unthreaded hole; the pipe hole of the auxiliary pipe is a unthreaded hole or a hole embedded with a threaded sleeve;

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 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 thread insert of the auxiliary pipe is provided with internal threads.

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

The utility model discloses a two tube holes of being responsible for are equal footpath pipe diameter or reducing pipe diameter, and the tube hole that attaches the pipe is the unthreaded hole or has inlayed the hole of swivel nut, and is equipped with the internal thread on the swivel nut. 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 three-way pipes according to the flow configuration of pipe network, effectively satisfied the pipe network to the design of a plurality of reducing, need not increase during the reducing and mend the core, but attach the internal thread lug connection shower head of pipe upper thread insert. 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.

Drawings

FIG. 1 is a schematic structural view of a main pipe with different diameter;

FIG. 2 is a schematic structural view of a main pipe with equal diameter and diameter;

fig. 3 is a schematic structural view of the auxiliary tube embedded with the thread insert.

Detailed Description

Referring to fig. 1, 2 and 3, the three-way pipe 1 of the present invention is a pipe joint with mutually communicated centers and three pipe holes arranged in a "T" shape, the two pipe holes are horizontally communicated to form a main pipe 11, one vertical pipe hole is an auxiliary pipe 12, and the two pipe holes of the main pipe 11 are equal-diameter pipe diameters or different-diameter pipe diameters;

the pipe hole of the main pipe 11 is a light hole; the pipe hole of the auxiliary pipe 12 is a light hole or a hole embedded with a threaded sleeve 122;

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 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;

the thread insert 122 of the auxiliary pipe 12 is provided with internal threads.

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 inner 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 three-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 tee 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 adopts the design that two pipe holes of the main pipe 11 are equal diameter pipe diameters or different diameter pipe diameters, and adopts the design that the pipe hole of the auxiliary pipe 12 is a unthreaded hole or is embedded with a threaded sleeve 122; different-diameter tee pipe joints with different specifications are manufactured according to the design of a fire-fighting water supply system.

Referring to fig. 1, fig. 1 shows a main pipe 11 of the present invention is a structural design of reducing pipe diameter.

Referring to fig. 2, fig. 2 shows the main pipe 11 of the present invention is a structural design with equal diameter pipe diameter.

Referring to fig. 3, fig. 3 shows the structure design of the auxiliary tube 12 of the present invention embedded with a threaded sleeve.

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.

The utility model discloses the design that has inlayed the swivel nut on attaching pipe 12, but the internal thread lug connection spray connection of swivel nut on attaching the pipe has avoided the loaded down with trivial details of on-the-spot mantle fiber in the work progress.

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 utility model discloses when being connected with other tubular products cold melt glue, be responsible for the setting of stopping step 111 and attaching pipe stopping step 121, still can prevent that tubular product from inserting the head and preventing that the glue from leaking to the center of three-way pipe 1.

The utility model discloses by mould and injection moulding for three-way pipe 1's reducing structure one shot forming 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 (5)

1. A reducing tee pipe joint for a fire-fighting water supply system is characterized in that two pipe holes of a main pipe (11) are of equal-diameter pipe diameter or different-diameter pipe diameter;

the pipe hole of the main pipe (11) is a light hole; the pipe hole of the auxiliary pipe (12) is a unthreaded hole or a hole embedded with a threaded sleeve (122);

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

the thread insert (122) of the auxiliary pipe (12) is provided with internal threads.

2. The reducer tee coupling 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 each formed by an annular ring having a rectangular cross section, and the annular ring is disposed at an inner intersecting line of pipe holes of the main pipe (11) and the auxiliary pipe (12).

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

4. The reducer tee coupling for a fire service 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 using glue.

5. A reducer tee coupling for a fire service water supply system according to claim 1, wherein the tee (1) is formed by die and injection molding.

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