CN2491058Y - Water flow indicator of automatic spraying fire extinguisher system - Google Patents
Water flow indicator of automatic spraying fire extinguisher system Download PDFInfo
- Publication number
- CN2491058Y CN2491058Y CN 01233846 CN01233846U CN2491058Y CN 2491058 Y CN2491058 Y CN 2491058Y CN 01233846 CN01233846 CN 01233846 CN 01233846 U CN01233846 U CN 01233846U CN 2491058 Y CN2491058 Y CN 2491058Y
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- CN
- China
- Prior art keywords
- fork
- water flow
- flow indicator
- framework
- centre bore
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a water flow indicator of automatic spraying fire extinguisher system. A body is connected with a joint of a conduit and the connecting place is provided with an O-shaped obturating ring. The body is provided with a center hole, a crust, a bracket for installating a microswitch and an electricity control unit, a vertical swing stem, a framework in an n-shaped made of metallic elastic materials, an upper bracket arranged on the upper end of the swing stem and an O-shaped obturating ring sleeved on the swing stem. The utility model is characterized in that the swing stem is vertically arranged, which does not cause axial expansion and makes the friction caused by swing small, thereby eliminating the influence of the change in hydraulic pressure on sensitivity.
Description
Technical field
The utility model relates to fire product, specifically a kind of automatic sprinkler system water flow indicator.
Background technology
Existing water flow indicator mainly contains the magnet steel dry-reed, three types of bellows microswitch formula and O type circle microswitch formulas, the water flow indicator of bellows microswitch formula (referring to Fig. 1) for example, its copper body and function screw is installed on the pipe joint, bellows lower end and the welding of copper body, upper end and the oar pin upper end welding of passing its inner chamber, the lower end of oar pin is provided with blade, the upper end also is provided with horizontal fork, an end that links to each other with the oar pin on the fork is arranged on the support that microswitch is housed by a pivot pin, the other end of fork is provided with the governor motion that is made of spring and adjustment screw, is used for regulating the sensitivity of water flow indicator.Its operation principle is: when discharge reaches certain value, promote blade, the swing of oar pin, fork is and then swing also, touches the contact that is contained in the microswitch on the support, electric controling part triggering for generating alarm signal.The water flow indicator of this structure, the suffered hydraulic pressure of the friction that pivot pin produced when rotating and bellows is directly proportional, therefore, and when the pressure of water changes in 0.14～1.2MPa critical field, acute variation also takes place in the rotation friction that produces on the pivot pin, and is bigger to the sensitivity influence of product.
Summary of the invention
The purpose of this utility model is to solve the problem that hydraulic pressure influences sensitivity in the prior art.Addressing the above problem the technical scheme that is adopted is: the automatic sprinkler system water flow indicator, comprise body, described body is connected with pipe joint, be provided with " O " RunddichtringO in described junction, described body offers centre bore, on described body, also be provided with the support of shell and installation microswitch and electric controling part, it is characterized in that also being provided with:
---one longitudinally fork be arranged in the described centre bore, be provided with slight clearance between described fork and the described centre bore; The top of described fork is the pinnacle, and the lower end is provided with oar pin and blade assembly, and described blade is positioned at water supply line;
---make by the metallic elastic material for one
The type framework, the top of described framework is provided with a support plate, offers the sharp groove that matches with described fork pinnacle on the described support plate; One side of described framework is provided with microswitch, and opposite side links to each other with sensitivity governor motion on being arranged on support;
---a upper bracket that is arranged on fork upper end also is provided with between described upper bracket and the body and makes the fork pinnacle head into the spring of set sharp groove on the framework support plate;
---" O " RunddichtringO that is sleeved on the fork, and a undersetting that is used for fixing described " O " RunddichtringO.
Described framework adopts the metal spring sheet, and the flange by support is arranged on the body.
Described framework is made of two metal spring silks, and the top is fixed by support plate and pushing block, and the bottom directly is positioned on the body by the flange of support.
Described support plate is provided with reinforcement flange up or down.
Described body below also is provided with the position-limited rack of the described oar pin amplitude of fluctuation of control, and described position-limited rack offers centre bore, and described oar pin is arranged in the described centre bore.
Described sensitivity governor motion comprises adjustment screw, spring and a pushing block that is arranged on the square frame roof.
Water flow indicator of the present utility model, when discharge reaches certain value, promote blade, the swing of oar pin, fork also and then is a spot wobble with set " O " RunddichtringO in the set centre bore of body, pinnacle, fork upper end drives the deflection of metal spring sheet framework, shake-up is contained in the contact of the microswitch on the support, makes electric controling part triggering for generating alarm signal.Characteristics of the present utility model are that its fork vertically is provided with, and can not produce axial stretching, this be because: one, framework are
Type, and make by the metallic elastic material, can slightly swing with fork; Two, set spring can overcome hydraulic pressure between upper bracket and the body, keeps the fork pinnacle to hold out against sharp groove set on the frame roof support plate.Therefore, this structure, the swing of fork is the swing of fulcrum with set in the centre bore " O " RunddichtringO, friction is very little, can eliminate the influence of pressure variation to sensitivity, guarantees that sensitivity is controlled in the critical field.The range of sensitivity can be regulated and set to the sensitivity governor motion.The position-limited rack that described body below is provided with makes the fork amplitude of fluctuation excessive and occur bending and deformation in order to prevent water impact.
The utility model is described in further detail for following structure drawings and Examples
Description of drawings
Fig. 1 is the prior art constructions schematic diagram.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is a partial enlarged drawing of the present utility model.
Fig. 4, the 5th, the structural representation of the utility model framework.
The specific embodiment
In the prior art shown in Figure 1,1---blade, 2---water supply network, 3---the oar pin, 4---interface, 5---body, 6---shell, 7---support, 8---microswitch, 12---spring, 20---fork, 30---pivot pin, 31---bellows, its structure front is mentioned, is not repeated.
With reference to Fig. 2,3,4, automatic sprinkler system water flow indicator of the present utility model, body 5 is connected with pipe joint 4, be provided with " O " RunddichtringO 14 in described junction, described body 5 offers centre bore 23, also is provided with the support 7 of shell 6 and installation microswitch 8 and electric controling part on described body 5.One longitudinally fork 20 be arranged in the described centre bore 23, be provided with slight clearance between described fork 20 and the described centre bore 23, fork 20 can slightly be swung in centre bore 23; The top of described fork 20 is pinnacle 22, and the lower end is provided with oar pin 3 and blade 1 assembly, and described blade 1 is positioned at water supply line; The front end of blade is a water supply network 2, and the rear end of blade 1 is water spray pipe network 16, and arrow is depicted as water (flow) direction among the figure.
Make by 0.1mm beryllium-bronze sheet
Type framework 24 bottoms are provided with two flange 26, offer installing hole 32 on the flange 26, on the support 7 also correspondence be provided with two flange 27, support flange 27 is pushed down framework flange 26, and by screw with frame fixation in body 5 centres; The inside top surface of described framework 24 is provided with a support plate 10, offers the sharp groove 28 that matches with described fork pinnacle 22 on the described support plate 10, and both sides, described support plate 10 front and back are provided with downward flange 29, and this flange 29 plays the booster action to support plate 10; The left side of described framework 24 is provided with microswitch 8, and the right side links to each other with sensitivity governor motion 11 on being arranged on support; Described sensitivity governor motion 11 comprises adjustment screw 13, spring 12 and a pushing block 9 that is arranged on square frame roof outer surface.
Be provided with upper bracket 17 in fork upper end, also be provided with between described upper bracket and the body 5 and make the fork pinnacle head into the spring 18 of set sharp groove on the framework support plate, upper bracket 17 and fork 20 can be regulated the contact force between fork 20 and the support plate 10 by being threaded.
Be set with " O " RunddichtringO 21 on fork 20, undersetting 19 adopts engage thread to screw in fork 20, and described " O " RunddichtringO 21 is fixed between body 5 and the fork 20 reliably.
Described body 5 belows also are provided with the position-limited rack 15 of the described oar pin amplitude of fluctuation of control, and described position-limited rack 15 offers centre bore 25, and described oar pin 3 is arranged in the described centre bore 25.Leave enough gaps between centre bore 25 and the oar pin 3, make fork pinnacle 22 can drive the contact that framework 24 motions touch microswitch 8; But guarantee again that simultaneously fork 20 swing within the specific limits, make the fork amplitude of fluctuation excessive and occur bending and deformation to prevent the impact of water stream.
Operation principle of the present utility model is: when discharge reaches certain value, promotion blade 1, oar pin 3 are swung to the right, fork also and then is a spot wobble with " O " RunddichtringO 21 of establishing in the set centre bore 25 of body 5, pinnacle, fork upper end 22 drives 24 deflections left of metal spring sheet framework, shake-up is contained in the contact of the microswitch 8 on the support, makes electric controling part triggering for generating alarm signal.Pipe network water pressure is 0.14～1.2Mpa, and when sparge pipe has a shower nozzle sprinkling fire on the net at least, when discharge was 15～37.5L/min, water flow indicator will trigger work.
Shown in Figure 5, framework 24 is made of two metal spring silks, and the top is fixing by support plate 10 and pushing block 9, and the bottom directly is positioned on the body 5 by the flange 27 of support, can be effective too.
Claims (6)
1, automatic sprinkler system water flow indicator, comprise body, described body is connected with pipe joint, be provided with " O " RunddichtringO in described junction, described body offers centre bore, on described body, also be provided with the support of shell and installation microswitch and electric controling part, it is characterized in that also being provided with:
---one longitudinally fork be arranged in the described centre bore, be provided with slight clearance between described fork and the described centre bore; The top of described fork is the pinnacle, and the lower end is provided with oar pin and blade assembly, and described blade is positioned at water supply line;
---make by the metallic elastic material for one
The type framework, the top of described framework is provided with a support plate, offers the sharp groove that matches with described fork pinnacle on the described support plate; One side of described framework is provided with microswitch, and opposite side links to each other with sensitivity governor motion on being arranged on support;
---a upper bracket that is arranged on fork upper end also is provided with between described upper bracket and the body and makes the fork pinnacle head into the spring of set sharp groove on the framework support plate;
---" O " RunddichtringO that is sleeved on the fork, and a undersetting that is used for fixing described " O " RunddichtringO.
2, automatic sprinkler system water flow indicator as claimed in claim 1 is characterized in that described framework adopts the metal spring sheet, and the flange by support is arranged on the body.
3, automatic sprinkler system water flow indicator as claimed in claim 1 is characterized in that described framework is made of two metal spring silks, and the top is fixed by support plate and pushing block, and the bottom directly is positioned on the body by the flange of support.
4,, it is characterized in that described support plate is provided with reinforcement flange up or down as any one described automatic sprinkler system water flow indicator of claim 1-3.
5, automatic sprinkler system water flow indicator as claimed in claim 4 is characterized in that described body below also is provided with the position-limited rack of the described oar pin amplitude of fluctuation of control, and described position-limited rack offers centre bore, and described oar pin is arranged in the described centre bore.
6, automatic sprinkler system water flow indicator as claimed in claim 5 is characterized in that described sensitivity governor motion comprises adjustment screw, spring and a pushing block that is arranged on the square frame roof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233846 CN2491058Y (en) | 2001-07-30 | 2001-07-30 | Water flow indicator of automatic spraying fire extinguisher system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233846 CN2491058Y (en) | 2001-07-30 | 2001-07-30 | Water flow indicator of automatic spraying fire extinguisher system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2491058Y true CN2491058Y (en) | 2002-05-15 |
Family
ID=33647545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01233846 Expired - Fee Related CN2491058Y (en) | 2001-07-30 | 2001-07-30 | Water flow indicator of automatic spraying fire extinguisher system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2491058Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730533A (en) * | 2016-12-06 | 2017-05-31 | 中国航天建设集团有限公司 | Full-automatic fire-fighting system with real-time monitoring and control |
-
2001
- 2001-07-30 CN CN 01233846 patent/CN2491058Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730533A (en) * | 2016-12-06 | 2017-05-31 | 中国航天建设集团有限公司 | Full-automatic fire-fighting system with real-time monitoring and control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |