CN2322653Y

CN2322653Y - Automatic sprinkler nozzle made of marmem

Info

Publication number: CN2322653Y
Application number: CN98226074U
Authority: CN
Inventors: 颜世春; 陈莉; 屈励; 汪礼苗
Original assignee: INST OF SOLID PHYSICS CHINESE
Current assignee: INST OF SOLID PHYSICS CHINESE
Priority date: 1998-02-27
Filing date: 1998-02-27
Publication date: 1999-06-09
Anticipated expiration: 2008-02-27

Abstract

The utility model discloses a structure of a shape memory alloy automatic sprinkler head: a water plug is installed at the lower part of the water outlet at the upper end of the existing ring frame and the frame in the splash plate, the lower part of the water plug is a gasket, and the lower part of the gasket is a An assembly of elastic elements and memory alloy springs. The utility model adopts the shape memory alloy as the heat-sensitive element, so it can carry out on-the-spot assessment, regular calibration, no misoperation, reliable performance, sensitive response, repeated use and low cost, so it has wider application prospect.

Description

The marmem AS

The utility model relates to a kind of AS technology.

The sprinkler tip of automatic wet pipe sprinkler system, at present general have two classes, i.e. glass marble shower nozzle and a fusible link shower nozzle.When the fire generation, when temperature was increased to certain value, glass marble burst or the fusible link fusing, and water ejection automatically extinguishes fire.Yet they all are disposable products, and operating temperature can not actually be examined and periodic check, cause performance unreliable, have misoperation to produce.These two kinds of shower nozzles mostly are from external import in addition, the price height, therefore, a kind of new type nozzle of dependable performance has been sought since this new function material of marmem comes out always by relevant producer both at home and abroad, just begin development from states such as the eighties U.S., days and adopt marmem to manufacture sprinkler tip, applied for many patents so far; Domestic development work to this product also has patent, but still is in the incipient stage.Take a broad view of domestic and international patent documentation, or because of complex structure, or, make it all to be difficult to so far drop into actual use because of other reason.

The purpose of this utility model just provides a kind of simple in structure and practical shape memory platform gold AS.

The utility model is made temperature-sensitive element with marmem, and with flexible member combination, instead of glass ball or fusible link, but still the framework of use glass marble or fusible member sprinkler tip, disposable product is changed into can repeatedly be used repeatedly

Below in conjunction with accompanying drawing the utility model is described in further detail

Fig. 1 is the structure chart of marmem AS;

Fig. 2 is the stereogram of pad 2;

Fig. 3 is the stereogram of the flexible member 4 under the off working state.

Among the figure: 1, water plug; 2, pad; 3, memory alloy spring; 4, flexible member; 5, splash box; 6, screw rod; 7, framework; 8, delivery port; 9, groove; 10, go up plush copper; 11, following plush copper; 12, fin; 13, elbow; 14, breach; 15, plush copper.

Fig. 1 is a structure chart of the present utility model, in the upper end of annular frame 7 delivery port 8 is arranged, and there is splash box 5 lower end; The center of splash box 5 is installed with screw rod 6 moving up and down; Framework 7, delivery port 8 and screw rod 6 are on an axis; Water plug 1 is arranged at the top, axis in framework 7, and the lower end driving fit mutually of water plug 1 and delivery port 8 has sealing ring therebetween; The bottom of water plug 1 is a pad 2, and the sub-assembly of flexible member 4 and memory alloy spring 3 is equipped with in the bottom of pad 2, is screw rod 6 below the flexible member 4.

From Fig. 1 and Fig. 2 as can be known, there is detent 9 at the lower plane center of water plug 1, and there is last plush copper 10 upper end of pad 2, and there is following plush copper 11 lower end; Water plug groove 9 matches with pad plush copper 10.

As can be seen from Figure 3, flexible member 4 is a bar-spring sheet, and there is elbow 13 its two fins, 12 upper ends, and there is locating notch 14 elbow 13 ends, and there is location plush copper 15 at following plush copper 11, the two fins 12 lower horizontal part centers that can hold pad 2 tightly; Two fins, 12 upper ends are open during off working state; Two of memory alloy spring 3 is stuck in the middle part of 4 liang of fins 12 of flexible member during duty.

During assembling, strut 7 is put upside down, promptly splash box is put into delivery port 8 to water plug 1 last, the last plush copper 10 of pad 2 is put into the groove 9 of water plug 1; Shape memory alloy spring 3 is put into flexible member 4, and it is vertical consistent with 4 liang of fins 12 of flexible member axially; Two fins, 12 top elbow breach 14 are held tightly the plush copper 11 of pad 2 lower ends, and the location plush copper 15 of flexible member 4 bottoms is put into the shrinkage pool on screw rod 6 tops simultaneously, tightens then, i.e. assembling finishes, under this state, even high hydraulic pressure also has excellent sealing.

As breaking out of fire, when temperature is elevated to the operating temperature of marmem, memory alloy spring 3 is replied elongation, elastic force effect in conjunction with flexible member 4 is outwards opened two fins 12 of flexible member jointly, pad 2 and water plug 1 drop downwards under the hydraulic pressure effect because of losing to support, scatter outside the shower nozzle framework, water ejection automatically extinguishes fire.

The utility model has the advantages that when reaching design temperature, shower nozzle can start rapidly, is quick on the draw, and misoperation can not occur, and dependable performance.The utility model is owing to adopt marmem to make temperature-sensitive element, and other parts also are metal materials, thus can carry out field assessment, periodic check, thus the reliability of sprinkler performance improved; Because simple in structure, easy to make can repeated multiple times the use, and cost is low, and therefore bigger application market is arranged.

Claims

1. a memorial alloy AS is made up of annular frame, delivery port, splash box, it is characterized in that: there is delivery port the upper end at annular frame, and there is splash box the lower end; The splash box center is installed with screw rod moving up and down; Framework, delivery port and screw rod are on an axis; The water plug is arranged at the top, axis in framework, and the lower end driving fit mutually of water plug and delivery port has sealing ring therebetween; Pad is equipped with in the bottom of water plug, and the sub-assembly of flexible member and memory alloy spring is housed below the pad; It below the flexible member screw rod.

2. sprinkler tip according to claim 1 is characterized in that: there is detent at the lower plane center of described water plug; There is last plush copper the upper end of pad, and there is following plush copper the lower end, and water plug groove matches with the last plush copper of pad.

3. sprinkler tip according to claim 1, it is characterized in that: described flexible member is a bar-spring sheet, and there is elbow its two fins upper end, and elbow ends has locating notch, can hold the following plush copper of pad tightly, there is the location plush copper at two fin lower horizontal part centers; Two of memory alloy spring is stuck in the middle part of flexible member two fins.