CN201448552U

CN201448552U - Steel-plastic composite plug

Info

Publication number: CN201448552U
Application number: CN2009200163925U
Authority: CN
Inventors: 赵子钧
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-18
Filing date: 2009-08-18
Publication date: 2010-05-05
Anticipated expiration: 2019-08-18

Abstract

A steel-plastic composite plug comprises a plug base body, a cock and an upper casing of the plug. The plug base body is a plastic plug base body comprising an upper plug cover with a cap, a pipe mouth with external threads and the cock. The upper end of the pipe mouth with external threads is connected with the lower end face of the upper plug cover and is integrated with the same via injection molding at one step to form an integral structure. The upper plug cover with a cap is provided with a cock hole, and the inner wall of the cock hole is provided with threads. The bottom wall of the cock hole is provided with a liquid (gas) through hole communicated with an inner cavity of the pipe mouth. The upper plug cover is provided with a liquid (gas) through hole communicated with the cock hole. The upper casing of the plug is made of steel and matches with the upper plug cover with a cap, and the shape of the upper casing of the plug is identical to that of the upper plug cover with a cap. The upper casing of the plug is fastened on the upper plug cover with a cap in an interference fit form. The surface of the steel-plastic composite plug is bright, attractive and corrosion resistant, the steel-plastic composite plug is free of damage when screwed by a steel spanner, is fine in ductility, is pressure and temperature resistant, non-leakage and corrosion resistant, saves great manufacturing cost for users due to low production cost, and then is well received by users.

Description

Steel is moulded compound plug

Technical field

The utility model relates to petrochemical industry accessory and plumbing, specifically relates to a kind of sealing plug.

Background technique

Industry at present, civilian use sealing plug mainly are the products that metallic material is made, and the matter material is mainly selected copper and iron and steel.

Though the product of this material can satisfy the operation technique requirement, when special industry such as the use of acid-base class medium, do not make its working life shorter because of anti-corrosion.If the single plastic material that selects can not reach usage requirement because of intensity index is low again.

Higher, big in standard piece industry discharge value especially because of the plug manufacture cost of metallic material, increase user's cost of use, make most users select the plug of non-standard, coarse low price, its security of products is had a greatly reduced quality, influenced Consumer's interests.

Summary of the invention

The purpose of this utility model, provide a kind of intensity height, corrosion-resistant, outward appearance is beautiful and the steel of long service life is moulded compound plug.

The technological scheme that adopts is:

Steel is moulded compound plug, comprises plug matrix, cock and plug upper shell.Its technological points is: the plug matrix is the plastic pipe plug matrix, comprise band back of the body cap the plug loam cake, be with the externally threaded mouth of pipe and cock.Be connected with the plug loam cake lower end surface of band nut with externally threaded mouth of pipe upper end, and be the overall structure of single injection-molded.

Be stamped faucet hole on the plug of band back of the body cap, the faucet hole inwall has screw thread.Liquid (gas) the body through hole that communicates with mouth of pipe inner chamber is arranged on the faucet hole diapire.On plug, covered liquid (gas) body through hole, and communicated with faucet hole.

The plug upper shell is a steel plug upper shell, and its shape is identical with the plug loam cake of band back of the body cap, and is complementary.The plug upper shell be located on the plug of being with back of the body cap and covers interference fit.

Cock is made of tap of plastic matrix and the steel cock frame that is packaged on the tap of plastic matrix.

Cock is connected with faucet hole with screw thread, and liquid (gas) through hole on the faucet hole diapire can be blocked in the cock lower end surface.

Advantage of the present utility model is:

Steel is moulded compound plug, is to adopt outer steel shell and tough plastic matrix pressure to be combined into whole anti-corrosion sealing plug.Box hat is chromium plating or plate other metal behind the cold-rolling and punching steel plate mould-forming, and surface-brightening is attractive in appearance, anti-corrosion, steel spanner rotation not damaged; Tough plastic is that mold injection forms, and its obdurability is good, withstand voltage 2.0MPa, and heatproof is not leaked for 100 ℃, and anti-corrosion 2≤PH≤14 almost are fit to any rugged environment and use, and can satisfy the anti-corrosion special industry of most of users' usage requirement, particularly chemical industry.It is low and save user's manufacture cost in a large number that invar is moulded compound plug valency, receives praises from customers.

Description of drawings

Fig. 1 is an a kind of embodiment's of the present utility model structural representation.

Fig. 2 is the plan view of Fig. 1.

Fig. 3 is the worm's eye view of Fig. 1.

Fig. 4 is the tap structure schematic representation.

Fig. 5 is a schematic appearance of the present utility model.

Embodiment

Steel is moulded compound plug, comprises plug matrix, cock 1 and plug upper shell 7.

The plug matrix comprises the plug loam cake 2 and the mouth of pipe 3.Hexagonal back of the body cap 4 is arranged on the upper-end surface of plug loam cake 2.The upper end-hole of the mouth of pipe 3 is fixedlyed connected with the lower end surface of plug loam cake 2.On the plug loam cake 2 of band hexagonal back of the body cap 4 tapped cock through hole 5 is arranged, the mouth of pipe 3 has outside thread.

Plug loam cake 2, hexagonal back of the body cap 4 and the mouth of pipe 3 are the overall structure by the plastic materials single injection-molded.

Plug upper shell 7 is that plating constitutes behind the cold-rolling and punching steel plate mould-forming.Plug upper shell 7 is identical with the plug loam cake 2 of band hexagonal back of the body cap 4, and is complementary, and the plug upper shell be located on the plug loam cake 2 of band hexagonal back of the body cap 4, and interference fit has the mouth 6 that leaks informaton on above-mentioned plug loam cake 2.

Cock 1 is made of tap of plastic matrix and the steel cock frame that is packaged on the tap of plastic matrix, and outside thread is arranged, and cock 1 is connected with cock through hole 5 with screw thread.

Claims

1. steel is moulded compound plug, comprises plug matrix, cock (1) and plug upper shell (7), it is characterized in that:

The plug matrix comprises the plug loam cake (2) and the mouth of pipe (3), and hexagonal back of the body cap (4) is arranged on the upper-end surface of plug loam cake (2), and the upper end-hole of the mouth of pipe (3) is fixedlyed connected with the lower end surface of plug loam cake (2); On the plug loam cake (2) of band hexagonal back of the body cap (4) tapped cock through hole (5) is arranged;

Plug loam cake (2), back of the body cap (4) and the mouth of pipe (3) are the overall structure by the plastic materials single injection-molded;

Plug upper shell (7) is a steel plug upper shell, identical with the plug loam cake (2) that has hexagonal back of the body cap (4) in shape, and is complementary; Plug upper shell (7) be located on the plug loam cake (2) of band hexagonal back of the body cap (4), interference fit;

Cock (1) is made of tap of plastic matrix and the steel cock frame that is packaged on the tap of plastic matrix, and outside thread is arranged; Cock (1) is connected with cock through hole (5) with screw thread.