CN212107302U - Pipe joint for fire-fighting water supply system - Google Patents
Pipe joint for fire-fighting water supply system Download PDFInfo
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- CN212107302U CN212107302U CN202020749866.3U CN202020749866U CN212107302U CN 212107302 U CN212107302 U CN 212107302U CN 202020749866 U CN202020749866 U CN 202020749866U CN 212107302 U CN212107302 U CN 212107302U
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Abstract
The utility model discloses a pipe joint for fire-fighting water supply system, which adopts a pipe body with a straight line axis or a pipe body with a curved line axis, wherein one end of the pipe body is provided with a light hole, the other end is embedded with a screw sleeve, and the screw sleeve is provided with an external thread or an internal thread; because in the automatic sprinkler system design standard, the fire control accessory that each node of pipeline was equipped with is different, will have a plurality of joints to appear among the pipe-line system, the utility model discloses set up different coupling according to the flow configuration of pipe network, effectively satisfied the pipe network and be equipped with the design of different fire control accessories to a plurality of nodes, the utility model discloses a but internal thread straight joint and internal thread elbow joint lug connection spray joint. 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
Technical Field
The utility model belongs to the technical field of the fire control water supply system technique and specifically relates to a 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. Due to the limitation of the production process of the galvanized steel pipe, the pipe joint in the prior art needs threading connection, and the threading causes the pipe wall to be thinned, so that the cost is increased, and the potential safety hazard that the joint is easy to corrode and leak exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pipe joint for a fire-fighting water supply system aiming at the difference of the prior art, which adopts a pipe body with a straight line axis or a curved line axis, one end of the pipe body is provided with a light hole, the other end is embedded with a screw sleeve, and the screw sleeve is provided with an external thread or an internal thread; because in the automatic sprinkler system design standard, the fire control accessory that each node of pipeline was equipped with is different, will have a plurality of joints to appear among the pipe-line system, the utility model discloses set up different coupling according to the flow configuration of pipe network, effectively satisfied the pipe network and be equipped with the design of different fire control accessories to a plurality of nodes, the utility model discloses a but internal thread straight joint and internal thread elbow joint lug connection spray joint. 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 pipe joint for a fire-fighting water supply system is characterized in that the pipe joint is a pipe body with two through ends; the pipe joint comprises an internal thread straight joint, an external thread straight joint and an internal thread elbow joint;
the internal thread straight joint and the external thread straight joint are both pipe bodies with straight axes, one end of each pipe body is provided with a unthreaded hole, and the other end of each pipe body is embedded with a threaded sleeve;
a first internal thread is arranged on a threaded sleeve of the internal thread straight joint;
the thread sleeve of the external thread straight joint is provided with an external thread;
the internal thread elbow joint is a pipe body with a curved axis, one end of the pipe body is provided with a unthreaded hole, and the other end of the pipe body is embedded with a threaded sleeve; a second internal thread is arranged on the threaded sleeve of the internal thread elbow joint;
the outer sides of the pipe bodies of the internal thread straight joint, the external thread straight joint and the internal thread elbow joint are provided with an outer hexagon or an outer octagon, the unthreaded holes of the pipe bodies are respectively provided with a retaining step, and the unthreaded holes are respectively provided with a horn-shaped taper angle alpha of 2-4 degrees.
The retaining steps are all formed by annular rings with rectangular sections.
The axes of the two ends of the internal thread elbow joint pipe body are intersected by 90 degrees or 135 degrees.
And two grooves are formed in the outer diameter of the external thread straight joint thread sleeve.
The inner surface of the unthreaded hole is connected with other pipes in a plug-in cold melting mode by adopting glue.
The pipe joint is formed by injection molding of a mold and an embedded threaded sleeve.
The pipe joint of the utility model adopts a pipe body with a straight line axis or a pipe body with a curved axis, one end of the pipe body is provided with a unthreaded hole, the other end of the pipe body is embedded with a threaded sleeve, and the threaded sleeve is provided with an external thread or an internal thread; because in the automatic sprinkler system design standard, the fire control accessory that each node of pipeline was equipped with is different, will have a plurality of joints to appear among the pipe-line system, the utility model discloses set up different coupling according to the flow configuration of pipe network, effectively satisfied the pipe network and be equipped with the design of different fire control accessories to a plurality of nodes, the utility model discloses a but internal thread straight joint and internal thread elbow joint lug connection spray joint. 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 diagram of an internally threaded straight joint;
FIG. 2 is a schematic structural view of an externally threaded straight joint;
FIG. 3 is a schematic view of a 90-degree intersection of the axes of the female elbow connector;
fig. 4 is a structural schematic diagram of the axis of the female elbow connector intersecting 135 degrees.
Detailed Description
Referring to fig. 1, 2 and 3, the pipe joint 1 of the present invention is a pipe body with two through ends; the pipe joint 1 comprises an internal thread straight joint 11, an external thread straight joint 12 and an internal thread elbow joint 13;
the internal thread straight joint 11 and the external thread straight joint 12 are both pipe bodies with straight axes, one end of each pipe body is provided with a unthreaded hole, and the other end of each pipe body is embedded with a threaded sleeve;
a first internal thread 111 is arranged on a thread sleeve of the internal thread straight joint 11;
an external thread 121 is arranged on a thread sleeve of the external thread straight joint 12;
the internal thread elbow joint 13 is a pipe body with a curved axis, one end of the pipe body is provided with a unthreaded hole, and the other end of the pipe body is embedded with a threaded sleeve; a second internal thread 131 is arranged on the threaded sleeve of the internal thread elbow joint 13;
the outer sides of the pipe bodies of the internal thread straight joint 11, the external thread straight joint 12 and the internal thread bent joint 13 are provided with an outer hexagon or an outer octagon, the unthreaded holes of the pipe bodies are respectively provided with a retaining step 14, and the unthreaded holes are respectively provided with a horn-shaped taper angle alpha of 2-4 degrees.
Referring to fig. 1, 2 and 3, the retaining step 14 is formed by an annular ring with a rectangular cross section.
Referring to fig. 3 and 4, the axes of the two ends of the pipe body of the female elbow connector 13 intersect at 90 ° or 135 °.
Referring to fig. 2, two grooves are formed on the outer diameter of the thread sleeve of the external thread straight joint 12.
Referring to fig. 1, 2 and 3, the inner surface of the unthreaded hole is connected with other pipes in a plug-in cold melting mode by glue.
Referring to fig. 1, 2 and 3, the pipe joint 1 is formed by injection molding with a mold and an insert nut.
The utility model discloses a use like this:
referring to fig. 1, 2 and 3, the utility model is used for the pipe joint 1 of the fire-fighting water supply system, which meets the requirements of the construction and acceptance specification (GB 50084-2017) (GB/T5135.19-2010) of the automatic water-spraying fire-extinguishing system.
The pipe joint 1 of the utility model adopts a pipe body with a straight line axis or a pipe body with a curved axis, one end of the pipe body is provided with a light hole, the other end is embedded with a screw sleeve, and the screw sleeve is provided with an external thread or an internal thread; the pipe joints with different specifications are manufactured according to the design of a fire-fighting water supply system.
Referring to fig. 1, fig. 1 is a structural design of an internal thread straight joint;
referring to fig. 2, fig. 2 is a structural design of an external thread straight joint;
referring to fig. 3, fig. 3 is a structural design in which the axes of the two ends of the pipe body of the female elbow connector intersect at 90 °.
Referring to fig. 4, fig. 4 shows the structural design of the two ends of the female elbow connector body with axes intersecting at 135 °.
The utility model discloses the unthreaded hole of body adopts plug-in type cold melt glue to be connected with being connected of other tubular products, the utility model discloses a unthreaded hole does not use the mantle fiber with being connected of other tubular products, has avoided because the mantle fiber leads to the risk of pipe wall attenuation, intensity reduction.
Referring to fig. 1, 2 and 3, the utility model discloses the design of swivel nut has been inlayed at the other end of body, and wherein, but the internal screw thread swivel nut lug connection spray joint 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 present invention, the unthreaded hole of the present invention is provided with a taper angle α in a horn shape of 2-4 degrees.
Referring to fig. 1, 2 and 3, the strength of the cross-section between the unthreaded hole of the pipe body and the thread insert is enhanced to prevent stress concentration, and the stopping step is arranged in the unthreaded hole of the pipe body and is formed by an annular ring with a rectangular cross section.
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 arrangement of the pipe stopping step can prevent the pipe from inserting the plug and prevent the glue from leaking to the center of the pipe.
The utility model discloses by mould and embedding swivel nut one shot injection moulding for the internal thread or the external screw thread one shot forming of coupling 1. 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.
Referring to fig. 2, the utility model discloses be equipped with two grooves on the external diameter of external screw thread straight joint 12 swivel nut, one of them inslot is equipped with the rubber circle of nai 200 ℃ for sealed between swivel nut and the injection molding, another is used for increasing the area of contact of moulding plastics and swivel nut, with the degree of adhesion between increase swivel nut and the injection molding.
Claims (6)
1. A pipe joint for a fire-fighting water supply system is characterized in that the pipe joint (1) is a pipe body with two through ends; the pipe joint (1) comprises an internal thread straight joint (11), an external thread straight joint (12) and an internal thread elbow joint (13);
the internal thread straight joint (11) and the external thread straight joint (12) are both pipe bodies with straight axes, one end of each pipe body is provided with a unthreaded hole, and the other end of each pipe body is embedded with a threaded sleeve;
a first internal thread (111) is arranged on a thread sleeve of the internal thread straight joint (11);
an external thread (121) is arranged on a thread sleeve of the external thread straight joint (12);
the internal thread elbow joint (13) is a pipe body with a curved axis, one end of the pipe body is provided with a unthreaded hole, and the other end of the pipe body is embedded with a threaded sleeve; a second internal thread (131) is arranged on the threaded sleeve of the internal thread elbow joint (13);
the outer sides of the pipe bodies of the internal thread straight joint (11), the external thread straight joint (12) and the internal thread elbow joint (13) are provided with an outer hexagon or an outer octagon, the inside of each unthreaded hole of each pipe body is provided with a stopping step (14), and the inside of each unthreaded hole is provided with a horn-shaped taper angle alpha of 2-4 degrees.
2. A pipe joint for a fire service water supply system according to claim 1, wherein the backstop steps (14) are each constituted by an annular ring having a rectangular cross-section.
3. A pipe joint for a fire service water supply system according to claim 1, wherein the axes of both ends of the pipe body of the female elbow (13) intersect at 90 ° or 135 °.
4. A pipe joint for a fire service water supply system according to claim 1, wherein the externally threaded straight joint (12) barrel is provided with two grooves on its outer diameter.
5. The pipe joint for a fire service water supply system according to claim 1, wherein the inner surface of the unthreaded hole is in plug-in cold-melt connection with other pipes by using glue.
6. A pipe joint for a fire service water supply system according to claim 1, wherein the pipe joint (1) is injection molded by a mold and an insert nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020749866.3U CN212107302U (en) | 2020-05-09 | 2020-05-09 | Pipe joint for fire-fighting water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020749866.3U CN212107302U (en) | 2020-05-09 | 2020-05-09 | Pipe joint for fire-fighting water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212107302U true CN212107302U (en) | 2020-12-08 |
Family
ID=73615916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020749866.3U Active CN212107302U (en) | 2020-05-09 | 2020-05-09 | Pipe joint for fire-fighting water supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212107302U (en) |
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2020
- 2020-05-09 CN CN202020749866.3U patent/CN212107302U/en active Active
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