CN102644780A

CN102644780A - Automatic spray valve

Info

Publication number: CN102644780A
Application number: CN2012101553385A
Authority: CN
Inventors: 韩效亮
Original assignee: 韩效亮
Current assignee: Henan Vico Anguang Industrial Co., Ltd.
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2012-08-22
Anticipated expiration: 2032-05-18
Also published as: CN102644780B

Abstract

The invention relates to an automatic spray valve which comprises a valve body, a valve cover, a magnetic ring sleeve, a magnetic ring component, a movable rod, a bias spring, a valve cover, a memory alloy, a piston cylinder, a magnetic core component and a piston, wherein the upper part of the movable rod passes through a central hole of the valve cover and protrudes out of the valve cover; the memory alloy is sleeved at the upper part of the movable rod protruding out of the valve cover, the upper end of the memory alloy contacts a spring cap, the lower end of the memory alloy contacts the valve cover, the inner diameter of a spring coil formed by winding the memory alloy is smaller than the outer diameter of the lower part of the movable rod; the spring cap contacts the top end of an adjusting rod, the outer diameter of the upper part of the adjusting rod is smaller than the outer diameter of the lower part of the adjusting rod, and the adjusting rod is connected with the upper part of the movable rod. The double-opened automatic spray valve provided by the invention has the advantages that the spring diameter of the memory alloy is reduced in design, so that the pushing force generated by the memory alloy is several times larger than that of the previous structure and thus the reliability of the opening of the valve is greatly improved; and the valve can be opened or closed through manual fine adjustment when the valve is maintained or tested; since a polygonal limit structure is arranged on the central hole of the top of the valve cover, the installation and change of the valve are convenient.

Description

The automatic spray valve

Technical field

A kind of automatic spray valve belongs to cooling, fire-fighting automatic control equipment field.

Background technique

Publication No. is that the CN102235545A patent document discloses, a kind of passive automatic fire control shower valve, and the present invention is made up of valve body and temperature controlling head, it is characterized in that comprising valve body, the piston diaphragm in the valve body, piston packing; Valve gap, magnetic ring component, magnet ring cover, reset spring, valve bonnet; Memory alloy, spring cap, adjusting nut, depression bar, stage clip; Interior cover, magnetic column assembly, spool overcoat, valve core housing, piston column; One columnar water outlet is arranged in the valve body, and the upper end of water outlet is equipped with the piston diaphragm; There is relief hole to cooperate on the said piston diaphragm with the piston packing of piston column bottom; Piston column is pressed in the magnetic column assembly through fill-in pad forms spool in the valve core housing.Though this passive automatic fire control shower valve can open and close automatically, because memory alloy needs relatively large size in original design, promptly the spring of memory alloy footpath is bigger; Influenced the thrust in the deformation process; Sometimes the valve of not opening, fire takes place at one's discretion, and consequence is hardly imaginable; All can't accomplish the manual fine-tuning opening/shutting valve when in application, needing maintenance or test in addition.

Summary of the invention

Goal of the invention of the present invention is the deficiency to existing technology, the fire-fighting valve that can open reliably automatically when a kind of fire is provided; And when maintenance or test, can open or close by manual fine-tuning; Because the polygonal limit structure is arranged on the mesopore of valve bonnet top, makes and install and change convenience valve in addition.

The technological scheme that the present invention takes is following:

A kind of automatic spray valve comprises valve body, valve gap, magnet ring cover, magnetic ring component, motion bar, bias spring, valve bonnet, memory alloy, piston cylinder, core assembly and piston, and the mesopore of said valve bonnet is passed on the top of said motion bar, protrudes in outside the said valve bonnet; Said memory alloy is enclosed within the top that protrudes in the outer motion bar of valve bonnet, and the upper end contacts with the spring cap, and the lower end contacts with valve bonnet, and the internal diameter of memory alloy coiled spring coil is less than the external diameter of the bottom of said motion bar; The spring cap is connected with the top of said adjustable lever; The external diameter on the top of said motion bar is less than the external diameter of bottom; Adjustable lever is connected with the top of said motion bar.

Preferably, the mesopore of valve bonnet is a polygon structure; The top of said motion bar is polygon structure, cooperates with the mesopore of valve bonnet.

Preferably, said adjustable lever is provided with screw thread, and the top of said motion bar is provided with tapped hole, and said adjustable lever cooperates with motion bar through screw thread and tapped hole, and said adjustable lever can screw in the top of motion bar.

Preferably, between said memory alloy and valve bonnet, be provided with thermal insulating pad.

Find that through experiment the thrust that the memory alloy wire in same length, same silk footpath is made the littler memory alloy spring coil in spring footpath is bigger, stroke is bigger.Two automatic spray valve of opening provided by the invention; Because the spring coil of memory alloy coiled is enclosed within the top of motion bar; The external diameter on motion bar top is significantly smaller than the external diameter of motion bar bottom, and several times of thrusts that memory alloy produces have improved the reliability that valve is opened greatly to structure in the past when fire.Because the polygonal limit structure is arranged on the mesopore of valve bonnet top, makes and install and change convenience valve in addition.

In preferred scheme, because the mesopore of valve bonnet is a polygon structure, the top of said motion bar is polygon structure, cooperates with the mesopore of valve bonnet; Thereby limiting the magnet ring cover can only move up and down; Manually during the rotation adjusting bar, adjustable lever cooperates motion bar fine setting activity up and down through screw thread and tapped hole with motion bar; Drive core assembly and piston fine setting activity up and down, thereby can finely tune opening/shutting valve.Between said memory alloy and valve bonnet, be provided with thermal insulating pad, can let the more accurately temperature of perception surrounding atmosphere of memory alloy; If thermal insulating pad is not set between memory alloy and the valve bonnet, owing to receive the influence of fluid temperature in other metal parts and the pipeline, and metal is the good conductor of heat, memory alloy is the perception ambient air temperature rapidly.

Description of drawings

Do further detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.

Fig. 1 is the mechanism principle figure of automatic spray valve;

Fig. 2 is valve bonnet and motion bar cooperating structure schematic representation;

1 is valve body among the figure, and 2 is bolt, and 3 is valve gap, and 4 is the magnet ring cover, and 5 is magnetic ring component; 6 is motion bar, and 6-1 is the top of motion bar, and 6-2 is the bottom of motion bar, and 7 is bias spring; 8 is valve bonnet, and 8-1 is the mesopore of valve bonnet, and 9 is adjustable lever, and 10 is the spring cap; 11 is memory alloy, and 12 is piston cylinder, and 13 is core assembly, and 14 is piston.

Embodiment

Embodiment:

As illustrated in fig. 1 and 2; A kind of automatic spray valve; Comprise valve body 1, valve gap 3, magnet ring cover 4, magnetic ring component 5, motion bar 6, bias spring 7, valve bonnet 8, memory alloy 11, piston cylinder 12, core assembly 13 and piston 14; The top 6-1 of said motion bar 6 passes the mesopore 8-1 of said valve bonnet 8, protrudes in outside the said valve bonnet 8; Said memory alloy 11 is enclosed within the top 6-1 that protrudes in the motion bar 6 outside the valve bonnet 8, and the upper end contacts with spring cap 10, and the lower end contacts with valve bonnet 8, and the internal diameter of memory alloy 11 coiled spring coils is less than the external diameter of the bottom 6-2 of said motion bar; Spring cap 10 is connected with the top of said adjustable lever 9; The external diameter of the top 6-1 of said motion bar 6 is less than the external diameter of bottom 6-2; Adjustable lever 9 is connected with the top 6-1 of said motion bar 6.The mesopore 8-1 of valve bonnet 8 is a polygon structure; The top 6-1 of said motion bar 6 is a polygon structure, cooperates with the mesopore 8-1 of valve bonnet 8; Under the polygon structure restriction of the mesopore 8-1 of valve bonnet 8, motion bar 6 can only move up and down; The top 6-1 of motion bar 6 and mesopore 8-1 both can be triangular structure shown in Fig. 2 A, also can be hexagonal structure shown in Fig. 2 B, can also be that other polygon structure is shown in Fig. 2 C.Said adjustable lever 9 is provided with screw thread, and the top 6-1 of said motion bar 6 is provided with tapped hole, and said adjustable lever 9 cooperates with motion bar 6 through screw thread and tapped hole, and said adjustable lever 9 can screw in the top 6-1 of motion bar 6.Between said memory alloy 11 and valve bonnet 8, be provided with thermal insulating pad, can let the more accurately temperature of perception surrounding atmosphere of memory alloy 11.The upper end of bias spring 7 withstands on the top of valve bonnet 8 inwalls, and the lower end of bias spring 7 is pressed on the motion bar 6, and magnet ring cover 4 and magnetic ring component 5 are formed downward pressure.Magnetic ring component 5 is formed by connecting the magnet same polarity more than two.Valve body 1 is connected through bolt 2 with valve gap 3; Magnetic ring component 5 is positioned at magnet ring cover 4.Be provided with columnar water outlet in the valve body 1, said piston 14 is arranged on the said water outlet; On the said piston 14 relief hole is arranged.

Be welded as a whole after earlier piston cylinder 12 being inserted the mesopore of valve gap 3 from bottom to top; Core assembly 13 is inserted from bottom to top the inner chamber of piston cylinder 12; Piston 14 is put into corresponding position, valve body 1 chamber; The valve gap 3 usefulness bolts 2 that will have piston cylinder 12 and core assembly 13 are fixed as one with the valve body 1 that has piston 14, constitute the valve body part.

Magnetic ring component 5 is put into the inner chamber of magnet ring cover 4; Motion bar 6 spins with magnet ring cover 4 and is integrally formed, and is simultaneously that magnetic ring component 5 is fixing; Bias spring 7 is enclosed within from top to bottom on the top 6-1 of motion bar; The motion bar 6 that will have magnet ring cover 4, magnetic ring component 5 and bias spring 7 passes the mesopore 8-1 of valve bonnet 8 from bottom to top; To have the valve bonnet 8 of magnet ring cover 4, magnetic ring component 5, motion bar 6 and bias spring 7, spin fixing with valve gap 3; The upper end of bias spring 7 withstands on the interior top of chamber of valve bonnet 8 at this moment, and the bottom of bias spring 7 withstands on the upper end of magnet ring cover 4; Meanwhile, magnetic ring component 5 is in the bottom of piston cylinder 12 under the pressure of bias spring 7; Under the effect of the magnetic line of force, the core assembly 13 in the piston cylinder 12 is located at the bottom of valve body 1 epicoele, and the relief hole of piston 14 is stopped up; In use, valve is in closed condition.Adjustable lever 9 is inserted the spiral hole of the top 6-1 of motion bars, screw in appropriate position; Memory alloy 11 is inserted on the top 6-1 of motion bar 6, spring cap 10 and adjustable lever 9 are spun, spring cap 10 is pushed down memory alloy 11.

During use, take place like fire, ambient temperature is provided with under the temperature conditions greater than memory alloy, and memory alloy 11 expansions promote spring cap 10 and move up, and move up thereby drive motion bar 6, and magnetic ring component 5 also together moves up; Core assembly 13 in the piston cylinder 12 also together moves up under the effect of magnetic force, has opened the relief hole in the piston 14, and valve body 1 interior upper cavity pressure is diminished, and valve is in opening state.Otherwise ambient temperature descends, and memory alloy 11 shrinks, and magnetic ring component 13 is action downwards under the effect of bias spring 7; Core assembly 13 in the piston cylinder 12; Also together action downwards under the effect of magnetic force, the relief hole in the closure piston 14 is closed at the intake pressure lower valve.

When needing maintenance or test, as long as turn adjustable lever 9, valve can be finely tuned unlatching.Because when turn adjustable lever 9; The top 6-1 of motion bar 6 is a polygon structure; And the mesopore 8-1 at valve bonnet 8 tops also is a polygon structure, and adjustable lever 9 has withstood the top of piston cylinder 12 when moving down, so magnet ring cover 4, magnetic ring component 5 and motion bar 6 can only move up and down; Drive core assembly 13 and piston 14 fine setting activity up and down, thereby can finely tune opening/shutting valve.

In addition, through manually adjustable lever 9 upwards being carried, move up thereby drive motion bar 6, magnetic ring component 5 also together moves up; Core assembly 13 in the piston cylinder 12 also together moves up under the effect of magnetic force, has opened the relief hole in the piston 14, and valve body 1 interior upper cavity pressure is diminished, and valve is in opening state.

Above embodiment's purpose is to explain the present invention, and unrestricted protection scope of the present invention, all application that come by simple change of the present invention all drop in protection scope of the present invention.

Claims

1. automatic spray valve; Comprise valve body (1), valve gap (3), magnet ring cover (4), magnetic ring component (5), motion bar (6), bias spring (7), valve bonnet (8), memory alloy (11), piston cylinder (12), core assembly (13) and piston (14); It is characterized in that; The mesopore (8-1) of said valve bonnet (8) is passed on the top (6-1) of said motion bar (6), protrudes in outside the said valve bonnet (8); Said memory alloy (11) is enclosed within the top (6-1) that protrudes in the outer motion bar (6) of valve bonnet (8), and the upper end contacts with spring cap (10), and the lower end contacts with valve bonnet (8), and the internal diameter of memory alloy (11) coiled spring coil is less than the external diameter of the bottom (6-2) of said motion bar; Spring cap (10) is connected with the top of said adjustable lever (9); The external diameter on the top (6-1) of said motion bar (6) is less than the external diameter of bottom (6-2); Adjustable lever (9) is connected with the top (6-1) of said motion bar (6).

2. automatic spray valve according to claim 1 is characterized in that, the mesopore (8-1) of valve bonnet (8) is a polygon structure; The top (6-1) of said motion bar (6) is polygon structure, cooperates with the mesopore (8-1) of valve bonnet (8).

3. automatic spray valve according to claim 2; Said adjustable lever (9) is provided with screw thread; The top (6-1) of said motion bar (6) is provided with tapped hole; Said adjustable lever (9) cooperates with motion bar (6) through screw thread and tapped hole, and said adjustable lever (9) can screw in the top (6-1) of motion bar (6).

4. drive the automatic spray valve according to each described couple of claim 1-3, it is characterized in that, between said memory alloy (11) and valve bonnet (8), be provided with thermal insulating pad.