CN206584482U - Point type heat fire detector - Google Patents

Abstract

The utility model is related to a kind of point type heat fire detector, including embedded box, pedestal and probe, accommodating chamber is formed in embedded box, the first extension is extended inwardly to form on embedded box inwall, the first cavity is formed between first extension and embedded box inwall, stretch out to form the second extension in susceptor edges, the second cavity is formed between second extension and base outer wall, the film for closing the second cavity is provided with second cavity, polyurethane foam filler is placed with second cavity, pedestal is provided with screw thread on one end away from the second extension, screw thread is provided with probe, probe is connected with base thread；Pedestal is pressed to the direction of accommodating chamber, first extension, which punctures film, to be extended into the second cavity, first extension is bonded in the second cavity by the polyurethane foam filler desiccation being stored in the second cavity, is installed after probe screw thread is tightened on pedestal again afterwards.

Description

Point type heat fire detector

Technical field

The utility model is related to fire-fighting equipment field, more particularly to a kind of point type heat fire detector.

Background technology

Point type heat fire detector, mainly uses temperature-sensitive element to detect fire；In fire starting stage, one side There are a large amount of smog to produce, another aspect material discharges substantial amounts of heat in combustion, and ambient temperature steeply rises； Physical change occurs for the temperature-sensitive element in detector, so that temperature signal is changed into electric signal, and carries out alert process.

A kind of fire detector as disclosed in the Chinese patent that notification number is " CN204632034U ", it is main to include being used for It is fixed on the pedestal on ceiling, wall, pipeline etc., the probe with detecting element, magnetic connects component and mechanical connection component； In the structure disclosed in above-mentioned patent, magnetic connects component mainly uses magnetic each other to connect pedestal and probe, Mechanical fastener is the relative motion for limiting pedestal and probe on the direction perpendicular to rotation direction；Due to ferromagnetism material Material mostly is metal material, makes a general survey of the periodic table of elements, and most metal material is all conductor or semiconductor, under certain condition It is all conductive, and because fire detector is connected on circuit, when the installation place of this fire detector is empty When floating there are other conductive materials in gas humidity or air, fire detector internal circuit may be connected with shell, if Human body imprudence is encountered, it is likely that the danger got an electric shock.

Utility model content

The purpose of this utility model is to provide a kind of higher point type fire detector of security performance.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of point-type temperature sensing fire Detector, including embedded box, pedestal and probe, the embedded box are arranged in wall, and accommodating chamber, institute are formed in the embedded box State and the first extension is extended inwardly to form on embedded box inwall, first is formed between first extension and embedded box inwall empty Stretch out to form the second extension in chamber, the susceptor edges, second is formed between second extension and base outer wall It is provided with cavity, second cavity in the film for closing the second cavity, second cavity and is placed with polyurethane foam Filler, the pedestal, which is provided with one end away from the second extension on screw thread, the probe, is provided with screw thread, the probe It is connected with base thread.

By using above-mentioned technical proposal, embedded box is previously positioned inside wall, and user is as needed by base Seat and probe are installed, and constitute the point type heat fire detector of a completion；Pedestal is pressed to the direction of accommodating chamber, the Two extensions and the first cavity coordinate, and the first extension, which punctures film, to be extended into the second cavity, is stored in the second cavity Polyurethane foam filler the first extension is flooded rapidly, about place 10 minutes or so, polyurethane foam filler is complete First extension is bonded in the second cavity by desiccation, has bonding due to polyurethane foam filler, waterproof, heat-insulated equivalent Really, so pedestal closely can be fixed together with embedded box using polyurethane foam filler, will pop one's head in screw thread again afterwards After being tightened on pedestal, install.

Preferably, being coated with temperature-sensitive layer outside the probe, the temperature-sensitive layer is formed by silver tetraiodomercurate coating.

By using above-mentioned technical proposal, silver tetraiodomercurate is a kind of relatively common thermosensitive chromotropic material；There are two kinds Variant, α variants and β variants, wherein α variants are the tetragonal crystals of yellow, and β variants are red cubic crystals, and α becomes to know from experience to be taken the photograph 51 It is changed into β variants when family name spends, and α variants can be converted into cooling；According to the transformation of color, point-type temperature-sensitive fire is judged The temperature of fire detector local environment, when probe is changed into red, then needs to cause the warning of user of service, and red this The penetrability of color is stronger, easily visible.

Preferably, the embedded box includes preceding box body and rear box body, the preceding box body and rear box body split are set.

By using above-mentioned technical proposal, because of some after user installs point type heat fire detector Reason needs dismounting, but can not be removed after being fixed between pedestal and embedded box by polyurethane foam filler, so will Embedded box split is arranged to preceding box body and rear box body, when needing to remove point type heat fire detector, by forward and backward box body point Open, powder of lacquer putty for use on etc. is then refilled in the first cavity is closed, and the vestige of embedded box is not seen at wall, can be weighed Newly come into operation.

It is filled with preferably, being provided between the preceding box body and rear box body in gap, the gap by natural emulsion The elastomer being made.

By using above-mentioned technical proposal, the elastomer being made using natural emulsion is connected preceding box body and rear box body, because There is preferable enclosed type for this natural emulsion, so the impurity in air or the external world in environment will not be entered at gap The normal of embedded box internal influence point type heat fire detector is used, when disassembly is desired, and box body draws elastomer before pulling Stretch, reuse sharp objects and cut elastomer.

Preferably, putting connection between the preceding box body and rear box body.

By using above-mentioned technical proposal, if probe and susceptor mass are larger, elastomer may be pulled and occur shape Become, point connection can enhancing structure intensity to a certain extent at gap for preceding box body and rear box body.

Preferably, being provided with the second fix bar on the rear box body, the first fix bar, institute are provided with the preceding box body State and be provided with first through hole at the first fix bar and the corresponding position of the second fix bar.

By using above-mentioned technical proposal, by preceding box body and back box body phase it is mutual after, using fixture, such as bolt is located in In first through hole, so that preceding box body and rear box body are connected into an entirety, when disassembly is desired, bolt is twisted from first through hole It is lower；This dismounting mode can be used for multiple times.

Preferably, being provided with elastic circular ring on the probe, toroidal cavity, the bullet are provided with the elastic circular ring Property annulus on be provided with the opening that toroidal cavity is in communication with the outside, the toroidal cavity in be placed with anti-flaming dope, it is described It is provided with opening on the dissolution in low temperature film for closing toroidal cavity, the dissolution in low temperature film and is provided with elastic adhesive bar, it is described One end of elastic adhesive bar is bonded on dissolution in low temperature film, and the other end is bonded on pedestal.

By using above-mentioned technical proposal, because point type heat fire detector is internally provided with electric wire etc., so in fire Calamity scene, if tip damage, spills the electric wire of inside, due to the insulation crust non-refractory outside electric wire, so electric wire meeting There is the phenomenon for giving a tongue-lashing spark, further aggravate fire；Anti-flaming dope is placed with the toroidal cavity of elastic circular ring, and uses 2 years dissolving membrane closures, when occurring fire temperature rising, dissolution in low temperature film are dissolved, elastic circular ring is in elastic force after dissolving Effect is lower to produce restorable movement tendency, i.e., the rolls forward on probe, and the extrusion ring during the state that resiles Shape cavity, the anti-flaming dope that will be stored in toroidal cavity is extruded to detecting head surface, so that in detecting head surface formation fire-resisting protection Layer.

Preferably, being provided with the LED for monitoring point type heat fire detector working condition on the probe.

By using above-mentioned technical proposal, LED is provided with probe, LED is connected and visited into point-type temperature sensing fire Survey inside device, when internal circuit connection, during point type heat fire detector normal work, LED is bright；If circuit is damaged, point When sensing fire detector does not have normal work, LED etc. goes out, and reminds user to change in time.

In summary, the utility model has the advantages that：Embedded box is previously positioned inside wall, is used Person as needed installs pedestal and probe, constitutes the point type heat fire detector of a completion；By pedestal to receiving The direction pressing of chamber, the cooperation of the second extension and the first cavity, the first extension film punctured extended into the second cavity, The polyurethane foam filler being stored in the second cavity rapidly floods the first extension, about places 10 minutes or so, poly- ammonia First extension is bonded in the second cavity by the complete desiccation of ester foam filling agent, is glued because polyurethane foam filler has Connect, it is waterproof, heat-insulated and other effects, so pedestal closely can be fixed together with embedded box using polyurethane foam filler, Installed after probe screw thread is tightened on pedestal again afterwards.

Brief description of the drawings

Fig. 1 is overall structure diagram in embodiment 1, for embodying the position relationship between each structure；

Fig. 2 is overall structure sectional view in embodiment 1；

Fig. 3 is the structure enlarged diagram of part A in Fig. 2, for embodying the first extension and the second extension；

Fig. 4 is the structure enlarged diagram of part B in Fig. 2, for embodying elastic circular ring and toroidal cavity；

Fig. 5 is the structure division explosive view in embodiment 2, for embodying the first fix bar and the second fix bar.

In figure, 1, embedded box；11st, accommodating chamber；12nd, the first extension；13rd, the first cavity；14th, preceding box body；141st, first Fix bar；142nd, first through hole；15th, rear box body；151st, the second fix bar；2nd, pedestal；21st, the second extension；22nd, second is empty Chamber；23rd, film；3rd, pop one's head in；31st, elastic circular ring；32nd, toroidal cavity；33rd, it is open；34th, dissolution in low temperature film；35th, elastic adhesive Bar；4th, temperature-sensitive layer；41st, gap；42nd, elastomer；5th, LED.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected in right of the present utility model by Patent Law.

Embodiment 1：As depicted in figs. 1 and 2, a kind of point type heat fire detector, including embedded box 1, pedestal 2 and probe 3, wherein embedded box 1 is provided in wall, caves inward to form accommodating chamber 11 on embedded box 1, for accommodating point-type temperature-sensitive Fire detector internal structure, accommodating chamber 11 is in communication with the outside, as shown in Figures 2 and 3, at the opening being in communication with the outside The extension that bends inwards forms the first extension 12, and the first cavity 13 is formed between the first extension 12 and the inwall of accommodating chamber 11, Pedestal 2 is bent outwardly extension with one end that embedded box 1 is connected and forms the second extension 21, and the second extension 21 is outer with pedestal 2 Formed to glue on the second cavity 22, the second cavity 22 between wall and be provided with film 23, film 23 closes the second cavity 22, in closing Polyurethane foam filler is filled with second cavity 22, film 23 can use polyvinyl chloride film；Pedestal 2 is away from the second extension Screw thread is provided with the one end in portion 21, probe 3 is screwed with pedestal 2 by screw thread to link into an integrated entity.

As shown in figure 1, embedded box 1 includes preceding box body 14 and rear box body 15, before the first extension 12 is arranged on box body 14； Preceding box body 14 and rear box body 15 are that split is set, and gap 41 is formed between after preceding box body 14 and rear box body 15 correspondence splicing, Elastomer 42 is filled with gap 41, elastomer 42 can use natural emulsion, and one end of elastomer 42 is sticked on preceding box body 14, The other end is sticked on rear box body 15；For further reinforcement structure, preceding box body 14 and rear box body 15 multiple spot at gap connect Connect.

As shown in figure 1, uniform on probe 3 be provided with one layer of temperature-sensitive layer 4, temperature-sensitive layer is using silver tetraiodomercurate coating Form, yellow is presented in temperature-sensitive layer 4 under low-temperature condition, be presented red at high operating temperatures.

As shown in Figure 2 and Figure 4, an elastic circular ring 31 is arranged with probe 3, elastic circular ring 31 can use natural emulsion It is made, toroidal cavity 32 is provided with elastic circular ring 31, toroidal cavity 32 is in communication with the outside to form opening 33, in opening 33 again Coat one layer of dissolution in low temperature film 34, dissolution in low temperature film 34 can use paraffin, the melting temperature of paraffin between 50 to 60 degrees Celsius, Opening 33 is blocked into closing opening 33；By elastic circular ring 31 pull to probe 3 close to pedestal 2 end, as shown in figure 1, and Coat to form elastic adhesive bar 35 using glass cement, one end of elastic adhesive bar 35 is bonded on dissolution in low temperature film 34, the other end Stick on pedestal 2, the storage of toroidal cavity 32 has anti-flaming dope.

As shown in figure 1, LED 5 is installed on probe 3, LED 5 and point type heat fire detector internal circuit string Connection, the working condition for monitoring point type heat fire detector.

Application method：Pedestal 2 is pressed to the direction of accommodating chamber 11, the second extension 21 is extended into the first cavity 13, First extension 12 punctures film 23, extends into the second cavity 22, and the polyurethane foam being stored in the second cavity 22 is filled out Fill agent to flood the first extension 12, about spend ten minutes or so, the desiccation of polyurethane foam filler is so as to by the first extension 12 Firm is fixed in the second cavity 22, and probe 3 is then screwed to the base for completing point type heat fire detector on the base 2 This installation；Yellow is presented when temperature is less than 50 degrees Celsius in the temperature-sensitive layer 4 being coated on probe 3, when temperature is higher than 50 degree It is presented red, when being presented red, warning user of service notes peripheral temperature；And the LED being arranged on probe 3 is normally lighted When marquis, show point type heat fire detector be it is in running order, when pop one's head in 3 on LED do not work when, show point-type Heat fire detector is, it is necessary to overhaul in off working state；When without using, it is necessary to when dismantling, will probe 3 from pedestal 2 On screw off, then outwards pull front cabinet body 14, the point connection between preceding box body 14 and rear box body 15 dragged disconnected, elastomer 42 is drawn Stretch, dismounting can be completed after elastomer 42 is cut off with sharp weapon, then box body 15 is sealed up for safekeeping within the walls again backward；And In fire incident, dissolution in low temperature film 34 is by after heat of solution, and elastic circular ring 31 departs from elastic adhesive bar 35, produces recovery in itself The trend of shape, and will be stored in the process the anti-flaming dope in toroidal cavity 32 extrude to probe 3 on, afterwards probe Flame resistant protective layer is formed on 3.

Embodiment 2：The structure of embodiment 2 and embodiment 1 is essentially identical, as shown in figure 5, a kind of point-type temperature-sensing fire detecting Device, unlike embodiment 1, is provided with the first fix bar 141, rear box body 15 on preceding box body 14 and is provided with the second fixation Bar 151, the first fix bar 141 is both not parallel or not in the same plane with the second fix bar 151, and in corresponding position On be provided with first through hole 142, the fixtures such as bolt are sequentially passed through after first through hole 142 and fixed with nut, so as to reach The effect that preceding box body 14 and rear box body 15 are connected.

Application method：Embodiment 2 it is essentially identical with the application method of embodiment 1, when without using point-type temperature sensing fire After detector, nut is screwed off from bolt, preceding box body 14 and rear box body 15 is separated；Using with wall composition identical Material such as powder of lacquer putty for use on builds the envelope of accommodating chamber 11 within the walls.

Claims (8)

1. a kind of point type heat fire detector, including embedded box（1）, pedestal（2）And probe（3）, it is characterised in that：It is described pre- Bury box（1）It is arranged in wall, the embedded box（1）Interior formation accommodating chamber（11）, the embedded box（1）Extended internally on inwall Form the first extension（12）, first extension（12）With embedded box（1）The first cavity is formed between inwall（13）, it is described Pedestal（2）Stretch out to form the second extension on edge（21）, second extension（21）With pedestal（2）Shape between outer wall Into the second cavity（22）, second cavity（22）On be provided with the second cavity（22）The film of closing（23）, described second Cavity（22）Inside it is placed with polyurethane foam filler, the pedestal（2）Away from the second extension（21）One end on be provided with Screw thread, the probe（3）On be provided with screw thread, the probe（3）With pedestal（2）Threaded connection.

2. a kind of point type heat fire detector according to claim 1, it is characterised in that：The probe（3）Outer coating There is temperature-sensitive layer（4）, the temperature-sensitive layer is formed by silver tetraiodomercurate coating.

3. a kind of point type heat fire detector according to claim 2, it is characterised in that：The embedded box（1）Including Preceding box body（14）With rear box body（15）, the preceding box body（14）With rear box body（15）Split is set.

4. a kind of point type heat fire detector according to claim 3, it is characterised in that：The preceding box body（14）With it is rear Box body（15）Between be provided with gap（41）, the gap（41）In filled with the elastomer that is made up of natural emulsion（42）.

5. a kind of point type heat fire detector according to claim 4, it is characterised in that：The preceding box body（14）With it is rear Box body（15）Between put connection.

6. a kind of point type heat fire detector according to claim 3, it is characterised in that：The rear box body（15）On set It is equipped with the second fix bar（151）, the preceding box body（14）On be provided with the first fix bar（141）, first fix bar（141） With the second fix bar（151）First through hole is provided with corresponding position（142）.

7. a kind of point type heat fire detector according to claim 5, it is characterised in that：The probe（3）It is upper to set Flexible annulus（31）, the elastic circular ring（31）On be provided with toroidal cavity（32）, the elastic circular ring（31）On be provided with By toroidal cavity（32）The opening being in communication with the outside（33）, the toroidal cavity（32）Anti-flaming dope is placed with upper, it is described to open Mouthful（33）On be provided with toroidal cavity（32）The dissolution in low temperature film of closing（34）, the dissolution in low temperature film（34）On be provided with bullet Property bonding bar（35）, the elastic adhesive bar（35）One end be bonded in dissolution in low temperature film（34）On, the other end is bonded in pedestal （2）On.

8. a kind of point type heat fire detector according to claim 7, it is characterised in that：The probe（3）It is upper to set There is the LED for control point sensing fire detector working condition（5）.