CN214839021U - Sleeve external thread straight joint - Google Patents
Sleeve external thread straight joint Download PDFInfo
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- CN214839021U CN214839021U CN202121227642.7U CN202121227642U CN214839021U CN 214839021 U CN214839021 U CN 214839021U CN 202121227642 U CN202121227642 U CN 202121227642U CN 214839021 U CN214839021 U CN 214839021U
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- copper sheathing
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Abstract
The utility model aims at the not enough and a sleeve mantle straight joint that provides to prior art, the utility model discloses constitute by barrel and the copper sheathing of establishing at same axis, the utility model discloses an one end is equipped with the external screw thread on the copper sheathing outer wall, the other end is equipped with several rectangular channels, the little drum and the big drum of coaxial setting on the barrel to be equipped with the annular on the outer wall of big drum, the barrel adopts the injection molding, when moulding plastics, arranges the copper sheathing in the outer wall of the little drum of barrel, several rectangular channels on the copper sheathing inlay in the annular of barrel, and the copper sheathing is annotated as an organic wholely with the barrel. The utility model discloses the little drum and the big drum of barrel run through in whole straight joint, have eliminated the overhead axial seam of direct, have stopped the product to take place the crack, have improved the security performance and the life of product, the utility model has the advantages of rational in infrastructure, high temperature resistant, anticorrosive, prevent leaking, easily install, improve joint strength and increase of service life.
Description
Technical Field
The utility model belongs to the technical field of the fire control water supply technique and specifically relates to an outer silk straight joint of sleeve for fire control supply channel.
Background
The pipeline and the joint of the fire-fighting automatic water spraying fire extinguishing system in the prior art are both galvanized pipe fittings, and the problems exist that the galvanized pipe fittings are extremely easy to corrode, and a plurality of fire-fighting pipelines are seriously corroded, so that the spray head is blocked by iron rust when a fire breaks out, so that water cannot be sprayed to fight the fire in time, the fire extinguishing time is delayed, and a larger fire disaster is caused; secondly, galvanized pipe fittings are inconvenient to install and maintain, the connection between the pipe fittings needs on-site threading connection, a large amount of labor cost is increased, the construction efficiency is not high, the sealing difficulty is high, and potential safety hazards exist; in order to overcome the defects of galvanized pipe fittings, a pipe fitting compounded by injection molding and colored metal pieces is bred, an outer wire straight joint of a sleeve in the prior art is formed by connecting a cylinder body 1 with a copper sleeve along the axial direction, the upper half part of the straight joint is of a structure with the copper sleeve and the lower half part of the straight joint is of the structure with the cylinder body 1, a seam is arranged in the middle, and the copper sleeve is a metal piece and the cylinder body 1 is an injection molding piece, so that the problems that the joint strength of the seam is reduced, cracks are easily generated at the seam to cause leakage, the service life of a product is influenced by a light person, and a serious person buries hidden danger for the safety of a fire-fighting system are solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough and a sleeve mantle fiber straight joint that provides to prior art, the utility model discloses an one end is equipped with the external screw thread on the copper sheathing outer wall, the other end is equipped with several rectangular channels, and little drum and the big drum of coaxial setting on the barrel to be equipped with the annular on the outer wall of big drum, the barrel adopts the injection molding, when moulding plastics, inlays in the annular of barrel with the copper sheathing outer wall of the little drum of barrel, several rectangular channels on the copper sheathing, and the copper sheathing is annotated as an organic wholely with the barrel. The utility model discloses the little drum and the big drum of barrel run through in whole straight joint, have eliminated the overhead axial seam of direct, have stopped the product to take place the crack, have improved the security performance and the life of product, the utility model has the advantages of rational in infrastructure, high temperature resistant, anticorrosive, prevent leaking, easily install, improve joint strength and increase of service life.
Realize the utility model discloses the concrete technical scheme of purpose is:
a sleeve external thread straight joint is characterized in that the straight joint is composed of a cylinder body and a copper sleeve which are arranged on the same axis, wherein the copper sleeve is a cylindrical part of which one end on the outer wall is provided with external threads and the other end is provided with a plurality of rectangular grooves;
the barrel is formed by connecting a small cylinder and a large cylinder which are coaxially arranged through steps, a raised ring is arranged on the outer wall of the large cylinder on the step, a ring groove is formed between the inner wall of the raised ring and the outer wall of the small cylinder, and the outer wall of the raised ring is provided with a hexagon or a octagon;
the copper sheathing is located the outer wall of the little cylinder of barrel, several rectangular channels on the copper sheathing inlay in the annular of barrel, and the copper sheathing is annotated as an organic whole with the barrel.
The utility model discloses the little drum and the big drum of barrel run through in whole straight joint, have eliminated the overhead axial seam of direct, have stopped the product to take place the crack, have improved the security performance and the life of product, the utility model has the advantages of rational in infrastructure, high temperature resistant, anticorrosive, prevent leaking, easily install, improve joint strength and increase of service life.
Compared with the prior art, the utility model, have following advantage:
the cylinder body 1 of the sleeve external thread straight joint in the prior art is connected with a copper sleeve along the axial direction, the upper half part of the straight joint is in a structure of the copper sleeve and the lower half part of the straight joint is in a cylinder body, and seams are arranged in the middle of the structure, so that the straight joint is easy to crack and cause leakage;
the small cylinder and the large cylinder of the cylinder body of the utility model run through the whole straight joint, thereby eliminating the axial seam on the straight joint and putting an end to the potential risk of cracking and leakage of the product;
because the copper bush is arranged on the outer wall of the small cylinder of the cylinder body, the copper bush is not in contact with water when water is introduced, and the copper bush is prevented from being rusted and blackened due to direct contact with the water.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Referring to fig. 1, the direct head of the present invention is composed of a cylinder 1 and a copper bush 2 arranged on the same axis, wherein the copper bush 2 is a cylindrical member having an external thread 21 at one end and a plurality of rectangular grooves 22 at the other end;
the barrel body 1 is formed by connecting a small cylinder 11 and a large cylinder 12 which are coaxially arranged through a step 13, a raised ring is arranged on the step 13 and positioned on the outer wall of the large cylinder, a ring groove 14 is formed between the inner wall of the raised ring and the outer wall of the small cylinder 11, and a hexagonal or octagonal 15 is arranged on the outer wall of the raised ring;
the copper sheathing 2 is located the outer wall of the small circle section of thick bamboo 11 of barrel 1, several rectangular channels 22 on the copper sheathing 2 inlay in the annular 14 of barrel 1, and the copper sheathing 2 is as an organic whole with barrel 1 notes.
The utility model discloses a use like this:
the utility model is suitable for a sleeve outer silk straight joint of fire control water supply system satisfies the requirement in the automatic water spray fire extinguishing systems construction and acceptance standard (GB 50084) 2017 (GB/T5135.19-2010).
Referring to fig. 1, when the utility model is connected with other pipes, one end of the large cylinder 12 of the cylinder 1 and the step 13 are connected with the pipes by the plug-in cold melting glue, and the step 13 plays the roles of limiting the pipe insertion and blocking the glue; one end of the small cylinder 11 of the cylinder body 1 and one end of the copper sleeve 2 are connected with other fire-fighting fittings through threads.
Referring to fig. 1, in order to facilitate the connection of the screw thread with other fire-fighting accessories, the utility model is provided with a hexagonal or octagonal 15 on the outer wall of the raised ring of the barrel.
Referring to fig. 1, arrange copper sheathing 2 in the mould, the utility model discloses by the one shot injection moulding of mould, for the joint strength who improves copper sheathing 2 and barrel 1, the utility model discloses set up several rectangular channels 22 on copper sheathing 2, the several rectangular channels 22 of copper sheathing 2 are annotated as an organic wholely with barrel 1's annular 14, thereby improve joint strength through the contact surface that increases copper sheathing 2 and barrel 1.
Claims (1)
1. The sleeve external thread straight joint is characterized by comprising a cylinder body (1) and a copper sleeve (2) which are arranged on the same axis, wherein the copper sleeve (2) is a cylindrical part of which one end on the outer wall is provided with an external thread (21) and the other end is provided with a plurality of rectangular grooves (22);
the barrel body (1) is formed by connecting a small barrel (11) and a large barrel (12) which are coaxially arranged through steps (13), a raised ring is arranged on the outer wall of the large barrel on the steps (13), a ring groove (14) is formed between the inner wall of the raised ring and the outer wall of the small barrel (11), and a hexagonal or octagonal ring (15) is arranged on the outer wall of the raised ring;
the copper bush (2) is positioned on the outer wall of the small cylinder (11) of the cylinder body (1) and a plurality of rectangular grooves (22) on the copper bush (2) and embedded in the annular groove (14) of the cylinder body (1), and the copper bush (2) and the cylinder body (1) are integrally injected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121227642.7U CN214839021U (en) | 2021-06-03 | 2021-06-03 | Sleeve external thread straight joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121227642.7U CN214839021U (en) | 2021-06-03 | 2021-06-03 | Sleeve external thread straight joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214839021U true CN214839021U (en) | 2021-11-23 |
Family
ID=78800211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121227642.7U Active CN214839021U (en) | 2021-06-03 | 2021-06-03 | Sleeve external thread straight joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214839021U (en) |
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2021
- 2021-06-03 CN CN202121227642.7U patent/CN214839021U/en active Active
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