CN202992309U

CN202992309U - Double-opened automatic spray valve

Info

Publication number: CN202992309U
Application number: CN 201220224878
Authority: CN
Inventors: 全龙浩
Original assignee: Individual
Current assignee: Beijing Jin Hang Safe Technology Ltd
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2013-06-12
Anticipated expiration: 2022-05-18

Abstract

The utility model relates to a double-opened automatic spray valve which comprises a valve body, a valve cover, a magnet ring sleeve, a magnet ring assembly, a movable rod, a bias spring, a valve cover, a memory alloy, a piston barrel, a magnetic core assembly and a piston, wherein the memory alloy is sleeved on an adjusting rod, of which the upper end contacts a spring cap and lower end contact the valve cover, the memory alloy is wound into a spring coil, of which the internal diameter is smaller than the external diameter of the upper end of the movable rod, the spring cap is connected with the top of the adjusting rod, the movable rod is positioned in the valve cover, threads are arranged on the adjusting rod, a screwed hole is arranged on the upper end of the movable rod, the adjusting rod passes through the central hole on the top of the valve cover and cooperates with the movable rod through the threads and screwed hole, and the external diameter of the adjusting rod is smaller than the external diameter of the movable rod. The double-opened automatic spray valve minimizes diameter of the memory alloy. The thrust generated by the memory alloy multiplies than a conventional structure, which substantially increases the opening reliability of a valve. The spray valve can be opened and closed through manual fine tuning, which improves use effect and expands the use scope.

Description

Two automatic spray valves of opening

Technical field

A kind ofly two drive the automatic spray valve, belong to cooling, fire-fighting automatic control equipment field.

Background technique

Publication No. is that the CN102235545A patent document discloses, a kind of automatic passive fire protection spraying valve, and the utility model is made of valve body and temperature controlling head, it is characterized in that comprising valve body, piston diaphragm in valve body, piston packing, valve gap, magnetic ring component, the magnet ring cover, reset spring, valve bonnet, memory alloy, the spring cap, adjusting nut, depression bar, stage clip, inner sleeve, core assembly assembly, the spool overcoat, valve core housing, piston column; One columnar water outlet is arranged in valve body, and the upper end of water outlet is equipped with the piston diaphragm; There is the piston packing of relief hole bottom piston column to coordinate on described piston diaphragm; Piston column is pressed in the core assembly assembly by fill-in pad and forms spool in valve core housing.Although this automatic passive fire protection spraying valve can open and close automatically, because memory alloy in original design needs relatively large size, namely the spring footpath of memory alloy is larger, affected the thrust in the deformation process, sometimes the valve of not opening, fire occurs at one's discretion, and consequence is hardly imaginable; All can't accomplish the manual fine-tuning opening/shutting valve when needing in addition maintenance or test in application.

The model utility content

Model utility purpose of the present utility model is for the deficiencies in the prior art, the fire valve that can automatically open reliably when a kind of fire is provided; And can open or close by manual fine-tuning when maintenance or test.

In order to solve the problems of the technologies described above, the technological scheme that the utility model is taked is as follows:

A kind of two automatic spray valve of opening, comprise valve body, valve gap, magnet ring cover, magnetic ring component, motion bar, bias spring, valve bonnet, memory alloy, piston cylinder, core assembly and piston, described memory alloy is enclosed within on described adjustable lever, the upper end contacts with the spring cap, the lower end contacts with valve bonnet, and memory alloy is coiled into the internal diameter of spring coil less than the external diameter on described motion bar top; Described spring cap is connected with the adjustable lever top; Described motion bar is positioned at described valve bonnet; Described adjustable lever is provided with screw thread, and described motion bar upper end is provided with tapped hole, and the mesopore that described adjustable lever passes the valve bonnet top coordinates with motion bar by screw thread and tapped hole; The external diameter of described adjustable lever is less than the external diameter of described motion bar.

Preferably, the top of described motion bar is polygon structure, is provided with the polygon space that matches with described polygon structure in described valve bonnet.

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

Found through experiments, the thrust that the memory alloy wire of same length, same string diameter is made the less memory alloy spring coil in spring footpath is larger, and stroke is larger.The utility model provides two drives the automatic spray valve, and the spring coil that is coiled into due to memory alloy is enclosed within than on the much smaller adjustable lever of motion bar, and the thrust that memory alloy produces has improved times over structure in the past the reliability that valve is opened greatly when fire.

In preferred scheme, because the top of motion bar is polygon structure, be provided with the polygon space that matches with described polygon structure in described valve bonnet, thereby limiting the magnet ring cover can only move up and down, during the manual rotation adjustable lever, adjustable lever coordinates with motion bar by screw thread and tapped hole, motion bar fine setting activity up and down, drive core assembly and piston fine setting activity up and down, thereby can finely tune opening/shutting valve.Be provided with thermal insulating pad between described memory alloy and valve bonnet, can allow the temperature of the more accurate perception surrounding atmosphere of memory alloy; If thermal insulating pad is not set between memory alloy and valve bonnet, due to the impact that is subjected to fluid temperature in other metal parts and pipeline, and metal is the good conductor of heat, and memory alloy is the perception ambient air temperature rapidly.

Description of drawings

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.

Fig. 1 is two mechanism principle figures of driving the automatic spray valve;

Fig. 2 A, 2B, 2C are valve bonnet and motion bar cooperating structure schematic diagram;

In figure, 1 is valve body, and 2 is bolt, and 3 is valve gap, 4 is the magnet ring cover, and 5 is magnetic ring component, and 6 is motion bar, 7 is bias spring, and 8 is valve bonnet, and 9 is adjustable lever, 10 is the spring cap, and 11 is memory alloy, and 12 is piston cylinder, 13 is core assembly, 14 is piston, and 15 is motion bar top polygon structure, and 16 is valve bonnet inner polygon space.

Embodiment

Embodiment:

Shown in Fig. 1 and Fig. 2 A, 2B, 2C, a kind of two automatic spray valve of opening, 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, described memory alloy 11 is enclosed within on described adjustable lever 9, the upper end contacts with spring cap 10, the lower end contacts with valve bonnet 8, and memory alloy 11 is coiled into the internal diameter of spring coil less than the external diameter on described motion bar 6 tops; Described spring cap 10 is connected with adjustable lever 9 tops; Described motion bar 6 is positioned at described valve bonnet 8; Described adjustable lever (9) is provided with screw thread, described motion bar (6) upper end is provided with tapped hole, the mesopore that described adjustable lever (9) passes valve bonnet (8) top coordinates with motion bar (6) by screw thread and tapped hole, and described adjustable lever 9 can screw in motion bar 6; The external diameter of described adjustable lever 9 is less than the external diameter of described motion bar 6.The top of described motion bar 6 is polygon structure 15, is provided with the polygon space 16 that matches with described polygon structure in described valve bonnet 8; Polygon structure 15 and the polygon space 16 restraint bar 6 that matches can only move up and down, polygon structure 15 and polygon space 16 can be both that triangular structure is as shown in Fig. 2 A, can be also hexagonal structure as shown in Fig. 2 B, can also be that other polygon structure is as shown in Fig. 2 C.Be provided with thermal insulating pad between described memory alloy 11 and valve bonnet 8, can allow the temperature of the more accurate 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 motion bar 6, and magnet ring cover 4 and magnetic ring component 5 are formed downward pressure.Described magnetic ring component 5 is formed by connecting by the magnet same polarity more than two.Valve body 1 is connected with valve gap and is connected by bolt 2; Magnetic ring component 5 is positioned at magnet ring cover 4.Be provided with columnar water outlet in valve body 1, described piston 14 is arranged on described water outlet; On described piston 14, relief hole is arranged.

Piston cylinder 12 is welded as a whole after inserting from bottom to top the mesopore of valve gap 3; Core assembly 13 is inserted from bottom to top the inner chamber of piston cylinder 12; Piston 14 is put into valve body 1 corresponding position, chamber; To be fixed as one with the valve gap 3 use bolts 2 of piston cylinder 12 and core assembly 13 and valve body 1 with piston 14, consist of the valve body part.

Magnetic ring component 5 is put into the inner chamber of magnet ring cover 4; Motion bar 6 and the magnet ring cover 4 formation one that spins, simultaneously that magnetic ring component 5 is fixing; Bias spring 7 is enclosed within on motion bar 6 from top to bottom; To overlap 4 with magnet ring, the motion bar 6 of magnetic ring component 5 and bias spring 7, insert from bottom to top in valve bonnet 8, the top polygon structure 15 of motion bar 6 inserts the inner polygon space 16 in valve bonnets 8; To overlap 4 with magnet ring, the valve bonnet 8 of 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 inner cavity top 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 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 hole at motion bar 6 tops, screw in appropriate position; After memory alloy 11 being inserted in the outside of adjustable lever 9, spring cap 10 and adjustable lever 9 are spun, spring cap 10 is pushed down memory alloy 11.

During use, occur as fire, ambient temperature is greater than in memory alloy set temperature situation, 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 piston cylinder 12 also together moves up under the effect of magnetic force, has opened the relief hole in piston 14, and the interior upper cavity pressure of valve body 1 is diminished, and valve is in opening state.Otherwise ambient temperature descends, and memory alloy 11 shrinks, and magnetic ring component 13 is in bias spring 7 effects action downwards, core assembly 13 in piston cylinder 12, also together action downwards under the effect of magnetic force, the relief hole in 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, adjustable lever 9 coordinates with motion bar 6 by screw thread and tapped hole, motion bar 6 tops are polygon structure 15, and valve bonnet 8 internal upper parts are polygon space 16, adjustable lever 9 has withstood the top of piston cylinder 12 when moving down, therefore motion bar 6, magnet ring cover 4, magnetic ring component 5 can only move up and down, and drive core assembly 13 and piston 14 fine setting activity up and down, thereby can finely tune opening/shutting valve.

In addition, by 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 piston cylinder 12 also together moves up under the effect of magnetic force, has opened the relief hole in piston 14, and the interior upper cavity pressure of valve body 1 is diminished, and valve is in opening state.

Above embodiment's purpose is to illustrate the utility model, and unrestricted protection domain of the present utility model, all application that come by the utility model simple change all drop in protection domain of the present utility model.

Claims

1. drive the automatic spray valve for one kind pair, 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, described memory alloy (11) is enclosed within on described adjustable lever (9), the upper end contacts with spring cap (10), the lower end contacts with valve bonnet (8), memory alloy (11) is coiled into the internal diameter of spring coil less than the external diameter on described motion bar (6) top, described spring cap (10) is connected with adjustable lever (9) top, described motion bar (6) is positioned at described valve bonnet (8), described adjustable lever (9) is provided with screw thread, and described motion bar (6) upper end is provided with tapped hole, and the mesopore that described adjustable lever (9) passes valve bonnet (8) top coordinates with motion bar (6) by screw thread and tapped hole, the external diameter of described adjustable lever (9) is less than the external diameter of described motion bar (6).

2. drive the automatic spray valve for according to claim 1 pair, it is characterized in that, the top of described motion bar (6) is polygon structure (15), is provided with the polygon space (16) that matches with described polygon structure in described valve bonnet (8).

3. described pair of according to claim 1-2 any one are driven the automatic spray valve, it is characterized in that, are provided with thermal insulating pad between described memory alloy (11) and valve bonnet (8).