CN204647711U

CN204647711U - Plug

Info

Publication number: CN204647711U
Application number: CN201520333100.6U
Authority: CN
Inventors: 王雪峰
Original assignee: Suzhou Envil Machinery Co Ltd
Current assignee: Suzhou Envil Machinery Co Ltd
Priority date: 2015-05-21
Filing date: 2015-05-21
Publication date: 2015-09-16
Anticipated expiration: 2025-05-21

Abstract

The utility model discloses a kind of plug, its drip irrigation device is a kind of plug, comprise plug body, described plug body is disposed with zinc-plated resin layer, chemical nickel plating scuff-resistant coating, electronickelling scuff-resistant coating, avoids the problem that thread weares and teares and plug corrodes preventing plug from getting rusty and on plug.

Description

Plug

Technical field

The utility model relates to seal arrangement, and more particularly, it relates to a kind of plug.

Background technique

Plug is a kind of for pipe end, prevents the seal arrangement that pipe end is revealed, and it serves the effect preventing liquid from pipeline leakage, and plug is accessory conventional in the installation process of water heating system.

Because plug is generally used in the installation process of water heating system, so plug often contacts with the water in water heating system, set out for manufacture cost and water quality, plug generally adopts iron to make, but get rusty easily when iron and liquid comes into contact, plug after getting rusty can decline with the sealing be threaded of pipeline, simultaneously when plug screws in pipeline, owing to being thread seal connection, frictional force when being threaded is very large, the screw thread of plug circumference can be violent with the screw thread in pipeline wearing and tearing, affect the structure of thread, thus the sealability of plug declined.

Model utility content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of plug preventing getting rusty and prevent thread from wearing and tearing.

For achieving the above object, the utility model provides following technological scheme: a kind of plug, comprises plug body, it is characterized in that: described plug body is disposed with zinc-plated resin layer, chemical nickel plating scuff-resistant coating, electronickelling scuff-resistant coating.

As preferably, described plug body comprises plug, and the end of described plug is provided with threaded stem vertically, described threaded stem is from inside to outside provided with the first screw thread, the second screw thread and the 3rd screw thread.

As preferably, described first screw thread, the second screw thread and the 3rd screw thread belong to 60 degree of taper pipe threads.

As preferably, the diameter of described first screw thread, the second screw thread and the 3rd screw thread is respectively 38.45mm, 40.22mm and 41.98mm.

As preferably, the inner circular diameter of described plug is 45.6mm, and the thickness of described plug is 16mm.

By adopting technique scheme, due to plug often will with ducted fluid contact, zinc-plated resin layer, chemical nickel plating scuff-resistant coating, electronickelling scuff-resistant coating is provided with successively on plug body, zinc-plated resin layer has good anticorrosive and rust-proof effect, when avoiding plug to contact with corrosive fluid, there is corrosion on plug surface or get rusty; The join strength of electro-galvanized layer and plug is poor simultaneously, the i.e. abrasionproof poor-performing of zinc coat, therefore need to be outside equipped with scuff-resistant coating at zinc coat, scuff-resistant coating needs to increase its join strength by the process of surface treatment that join strength is strong simultaneously, therefore scuff-resistant coating is chemical nickel plating scuff-resistant coating, chemical nickel plating scuff-resistant coating abrasionproof performance is good, join strength is high, can have and effectively prevent thread from wearing and tearing; Simultaneously; during in order to make tubular service, plug can repeatedly use, and is outside equipped with electronickelling scuff-resistant coating at chemical nickel plating scuff-resistant coating; electronickelling scuff-resistant coating is easy to process; but join strength is low, can as the protective layer outside chemical nickel plating scuff-resistant coating, when protection plug screws in pipeline; can be jagged on screw thread in pipeline; burr is polished by self by electronickelling scuff-resistant coating, prevents chemical nickel plating scuff-resistant coating from damaging, and plug can repeatedly be used.

Accompanying drawing explanation

Fig. 1 is structural representation one of the present utility model;

Fig. 2 is structural representation two of the present utility model;

Fig. 3 is generalized section of the present utility model.

In figure: 0, plug body; 1, plug; 2, threaded stem; 21, the first screw thread; 22, the second screw thread; 23, the 3rd screw thread; 31, zinc-plated resin layer; 32, chemical nickel plating scuff-resistant coating; 33, electronickelling scuff-resistant coating.

Embodiment

Referring to figs. 1 through Fig. 3, embodiment of the present utility model is described further.

As depicted in figs. 1 and 2, a kind of plug, comprise plug body 0, body is fabricated from iron, plug body 0 is disposed with zinc-plated resin layer 31, chemical nickel plating scuff-resistant coating 32, electronickelling scuff-resistant coating 33, due to plug often will with ducted fluid contact, zinc-plated resin layer 31, chemical nickel plating scuff-resistant coating 32, electronickelling scuff-resistant coating 33 is provided with successively on plug body 0, zinc-plated resin layer 31 has good anticorrosive and rust-proof effect, when avoiding plug 1 to contact with corrosive fluid, there is corrosion on plug 1 surface or get rusty; The join strength of electro-galvanized layer and plug 1 is poor simultaneously, the i.e. abrasionproof poor-performing of zinc coat, therefore need to be outside equipped with scuff-resistant coating at zinc coat, scuff-resistant coating needs to increase its join strength by the process of surface treatment that join strength is strong simultaneously, therefore scuff-resistant coating is chemical nickel plating scuff-resistant coating 32, chemical nickel plating scuff-resistant coating 32 abrasionproof performance is good, join strength is high, can have and effectively prevent thread from wearing and tearing; Simultaneously, during in order to make tubular service, plug can repeatedly use, and is outside equipped with electronickelling scuff-resistant coating 33 at chemical nickel plating scuff-resistant coating 32, electronickelling scuff-resistant coating 33 is easy to process, but join strength is low, can as the protective layer outside chemical nickel plating scuff-resistant coating 32, when protection plug screws in pipeline, can be jagged on screw thread in pipeline, burr is polished by self by electronickelling scuff-resistant coating 33, prevents chemical nickel plating scuff-resistant coating 32 from damaging, and plug can repeatedly be used; Zinc-plated resin layer 31 is arranged on plug body 0 by electric plating method, nickel metal-plated is attached to outside zinc-plated resin layer 31 by redox reaction by chemical nickel plating scuff-resistant coating 32, join strength is high, electronickelling scuff-resistant coating 33 by the mode of plating by nickel metal plating to outside chemical nickel plating scuff-resistant coating 32.

As shown in Figure 1, plug body 0 comprises plug 1, the end of plug 1 is provided with threaded stem 2 vertically, threaded stem 2 is from inside to outside provided with the first screw thread 21, second screw thread 22 and the 3rd screw thread 23, first screw thread 21, the diameter of the second screw thread 22 and the 3rd screw thread 23 is preferably 38.45mm respectively, 40.22mm and 41.98mm, this is the screw thread of the install pipeline for 40mm diameter, if be less than this numerical value may occur the situation that the sealing effects such as leakage are bad, if be greater than the situation that thread excessive wear may appear screwing in numerical value, first screw thread 21 and the 3rd screw thread 23 are in the both sides of the second screw thread 22, because the head of threaded stem 2 inwardly tightens up, so the diameter being in the 3rd screw thread 23 of the head of threaded stem 2 do larger, make the screw-thread fit of the part of threaded stem 2 elder generation and tube contacts, if the 3rd screw thread 23 is less than the diameter of the screw thread in pipeline, in screw-in process, be easy to cause breaking of thread, simultaneously in order to prevent thread abrasion, at the second screw thread 22 with the screw-thread fit of pipeline, complete the sealing of plug and pipeline, the diameter of the 3rd screw thread 23 is less than the diameter of the second screw thread 22, facilitate the screw-in of plug, reduce the wearing and tearing of the 3rd screw thread 23 position, facilitate the back-out of plug simultaneously, first screw thread 21, second screw thread 22 and the 3rd screw thread 23 belong to 60 degree of taper pipe threads, and the steering capability of the taper pipe thread of 60 degree is better, and the taper pipe thread of 60 degree serves the effect of guiding when threaded stem 2 screws in pipeline, facilitate the installation of plug.

As shown in Figure 3, the inner circular diameter of plug 1 is 45.6mm, and the thickness of described plug 1 is 16mm, for the pipeline of 40mm diameter, while guaranteed performance, the plug materials of production are minimum, cost performance is high, avoids waste of material, the environmental pollution caused when reducing surface treatment.

The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a plug, comprises plug body, it is characterized in that: described plug body is disposed with zinc-plated resin layer, chemical nickel plating scuff-resistant coating, electronickelling scuff-resistant coating.

2. plug according to claim 1, is characterized in that: described plug body comprises plug, and the end of described plug is provided with threaded stem vertically, described threaded stem is from inside to outside provided with the first screw thread, the second screw thread and the 3rd screw thread.

3. plug according to claim 2, is characterized in that: described first screw thread, the second screw thread and the 3rd screw thread belong to 60 degree of taper pipe threads.

4. plug according to claim 3, is characterized in that: the diameter of described first screw thread, described second screw thread and described 3rd screw thread is respectively 38.45mm, 40.22mm and 41.98mm.

5. plug according to claim 2, is characterized in that: the inner circular diameter of described plug is 45.6mm, and the thickness of described plug is 16mm.