CN115607886A - Flush type fire-fighting sprinkler - Google Patents
Flush type fire-fighting sprinkler Download PDFInfo
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- CN115607886A CN115607886A CN202211261213.0A CN202211261213A CN115607886A CN 115607886 A CN115607886 A CN 115607886A CN 202211261213 A CN202211261213 A CN 202211261213A CN 115607886 A CN115607886 A CN 115607886A
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- pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000007921 spray Substances 0.000 claims abstract description 87
- 238000003466 welding Methods 0.000 claims abstract description 17
- 230000007480 spreading Effects 0.000 claims abstract description 15
- 238000003892 spreading Methods 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 238000005034 decoration Methods 0.000 claims description 13
- 230000004927 fusion Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 32
- 230000006872 improvement Effects 0.000 description 25
- 239000011521 glass Substances 0.000 description 16
- 238000007789 sealing Methods 0.000 description 14
- 238000004891 communication Methods 0.000 description 7
- 230000004044 response Effects 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to the field of fire prevention and extinguishment tools, and provides a flush type fire control spray head water spraying device which does not need an external air suction source, has wide application range and high reliability and can timely sense the house fire, which comprises a fire control spray head main body, wherein the fire control spray head main body comprises a water inlet pipe communicated with a water source and a fire control spray pipe arranged below the water inlet pipe, a spray plug which can slide in an inner cavity of the fire control spray pipe and is used for plugging or opening the water outlet is further arranged at the water outlet of the water inlet pipe, a spreading positioning device which is used for propping the spray plug against the water outlet of the water inlet pipe is further arranged in the inner cavity of the fire control spray pipe, the spreading positioning device is movably connected with the inner wall of the fire control spray pipe, and a decorative cover which can sense the surrounding fire and can be broken or separated when the temperature reaches the melting point of the self melting point or the melting point of an upper fusible welding point of the spray pipe and can drive the whole spreading positioning device to fall off from the lower part of the spray plug is arranged at the lower part of the spray pipe.
Description
Technical Field
The invention relates to the field of fire prevention and extinguishing tools, in particular to a fire-fighting sprinkler which is flush mounted on a roof plate of a house.
Background
The traditional fire sprinkler generally adopts a glass body type fire sprinkler which mainly comprises a frame, a glass body, a splash pan, a mounting cover and a decorative cover. When a fire disaster occurs, the decoration cover drops due to the fact that the connection welding points of the decoration cover and the installation cover are melted, external high-temperature air enters the installation cover, organic solution with different expansion coefficients in the glass body in the installation cover is baked and expanded by high-temperature gas to break the glass body, the water outlet which is blocked by the glass body is correspondingly opened, water flow is sprayed out through the water outlet and impacts the water splashing disc to sprinkle the periphery, and therefore the purpose of fire extinguishment is achieved. Usually, the structure is installed on the roof of the house externally, which not only occupies the space of the house, but also causes the house to be splashed with water and even submerged if the glass body is broken due to careless touch. There are also situations where the weld is not melted and external high temperature air enters the mounting cup to heat the glass body causing it to break and open the water outlet for reasons of assembly process and sealing, which would result in water flow into the roof of the house blocked by the trim cover, which also limits its use in some luxury finishing locations because it is a heat transfer element used to melt the weld so that its outer surface cannot be painted with paint that is in the same color as the roof of the house.
For this reason, the chinese patent application nos.: 202210231528.4 discloses a quick response hidden fire control nozzle, which comprises a glass tube, a shunt cone, a decorative cover, a spray plate, a connecting rod, an installation cover and a limiting connecting mechanism, wherein the installation cover comprises an upper installation cover and a lower installation cover. When the glass tube is not broken, the limiting connection mechanism plays a role in fixedly connecting the upper mounting cover and the lower mounting cover, and the connection stability of the upper mounting cover and the lower mounting cover is ensured. This fire control shower nozzle blocks water through the glass pipe and flows out from fire control shower nozzle department, and the glass pipe is located and decorates the space that covers and installation cover formed. The hidden fire-fighting nozzle with the quick response function is also provided with an external air suction source which is used for sucking away air in the installation cover and is always in a working state, so that high-temperature air in a house can be quickly sucked into the installation cover from an annular gap between the installation cover and the decoration cover when a fire occurs to heat the glass body, the glass body is broken due to heating, at the moment, even if a welding point between the connecting rod and the decoration cover is not melted, the limiting connection mechanism can still quickly release the limiting connection effect on the upper installation cover and the lower installation cover, the lower installation cover can also quickly fall off from the upper installation cover when the glass body is broken, and then water is sprayed out from the fire-fighting nozzle to extinguish fire, so that the hidden fire-fighting nozzle is generally applied to places with ventilation systems. Although the quick-response hidden fire sprinkler can also introduce external high-temperature gas to heat the broken glass body to realize the purpose of quick response when the welding spot is not melted, the situation that the decorative cover cannot fall off in time when a fire occurs and water flows into a roof plate of a house due to the broken glass tube to open the water flow can be avoided, but the hidden fire sprinkler has the following defects:
1. the need to equip an external suction source makes the structure of the concealed fire sprinkler relatively complex and increases the production and maintenance costs, which limits its range of use if it is applied to locations with ventilation systems.
2. Because the external air suction source is always in a working state, the air in the concealed fire-fighting nozzle with quick response is always in a circulating state, so that the noise of a house is increased, and the rest of a resident is influenced.
3. The rapid response concealed fire sprinkler may slow or even fail to function in the event of a fire because the annular gap for ventilation may become blocked by dust due to prolonged air circulation.
Disclosure of Invention
In order to solve the problems, the invention provides the flush type fire-fighting nozzle watering device which does not need an external air suction source, has wide application range and high reliability and can sense the fire condition of a house in time.
In order to achieve the purpose, the invention discloses a flush type fire-fighting sprinkler which comprises a fire-fighting sprinkler main body, wherein the fire-fighting sprinkler main body comprises a water inlet pipe communicated with a water source and a fire-fighting spray pipe arranged below the water inlet pipe, a spray plug capable of sliding in an inner cavity of the fire-fighting spray pipe to plug or open the water outlet is further arranged at a water outlet of the water inlet pipe, a spreading positioning device used for propping the spray plug against the water outlet of the water inlet pipe is further arranged below the spray plug in the inner cavity of the fire-fighting spray pipe, the spreading positioning device is movably connected with the inner wall of the fire-fighting spray pipe, and a decorative cover capable of sensing surrounding fire conditions and melting or separating when the temperature reaches a self melting point or a melting point of a fusible welding point on the spreading positioning device and driving the whole spreading positioning device to fall off from the lower part of the spray plug is arranged at the lower part of the fire-fighting spray pipe.
The further improvement is that: the strutting and positioning device further comprises a positioning disc, the positioning disc is arranged in the fire-fighting spray pipe and used for propping a spraying plug of a fire-fighting spray head against the water outlet of the water inlet pipe, the inner wall of the fire-fighting spray pipe is positioned between the decorative cover and the positioning disc, the positioning disc can be positioned in the fire-fighting spray pipe, and the decorative cover can be outwards opposite to the strutting and positioning structure which applies external force to accelerate the decorative cover to fuse or separate due to self fusion or fusion of an easily-fusible welding spot on the decorative cover.
The further improvement is that: the spreading positioning structure comprises at least two back type supporting frames, buckling grooves used for preventing the positioning disc from rotating and falling on the inner wall of the fire-fighting spray pipe are uniformly distributed on the inner wall of the fire-fighting spray pipe, one end of each back type supporting frame is movably connected with the buckling grooves on the inner wall of the fire-fighting spray pipe and positions the positioning disc in the fire-fighting spray pipe, and the other end of each back type supporting frame is movably connected with the side edge of the decorative cover.
The further improvement is that: the decorative cover is formed by welding two decorative sheets by adopting fusible welding points, and the other end of each back-type support frame is movably connected with the side edge of each decorative sheet.
The further improvement is that: the side edges of the decorative sheets are respectively provided with a notch which is movably connected with each back-facing type supporting frame, and the other end of each back-facing type supporting frame penetrates out of the notch of the corresponding decorative sheet.
The further improvement is that: first mounting grooves for movably mounting the back-type supporting frames are uniformly distributed on the positioning disc, and the back-type supporting frames are correspondingly arranged on the first mounting grooves of the positioning disc respectively and used for clamping and positioning the positioning disc in the blowout control pipe.
The further improvement is that: the strutting positioning device further comprises a screw rod, the screw rod is arranged on the positioning disk and used for driving the positioning disk to slide in the inner cavity of the fire-fighting spray pipe, and the decorative cover is further provided with a through hole for an external tool to extend into and drive the screw rod of the positioning disk.
The further improvement is that: the back type support frame is two.
The further improvement is that: the decorative cover may also be comprised of a single decorative sheet that is meltable upon heating.
The further improvement is that: the two side edges of the decorative sheet are respectively provided with a notch which is movably connected with each back-to-back type supporting frame, and the other end of each back-to-back type supporting frame penetrates out of the notch of the decorative sheet.
The further improvement is that: the melting point of the single decorative sheet which can be melted by heat is as follows: 68. and the temperature is 93-93 ℃.
The further improvement is that: locate decorate the mounting panel on the fire control spray tube outer wall, be equipped with the mounting hole on decorating the mounting panel, the mounting hole with fire control spray tube outer wall cooperation is connected.
The further improvement is that: the fire-fighting spray pipe is characterized in that a polygonal limiting boss of the fire-fighting spray pipe is arranged between the water inlet pipe and the fire-fighting spray pipe, and a water outlet of the water inlet pipe is formed in the polygonal limiting boss.
The further improvement is that: and a raised ring which is abutted against the lower end face of the polygonal limiting boss is arranged on the decorative mounting plate along the edge of the mounting hole.
The further improvement is that: the upper end of the protruding ring is further provided with guiding lugs which are convenient for installation and positioning of the outer wall of the fire fighting nozzle and have certain flexibility at intervals along the circumferential direction of the protruding ring, and the diameter of an upper port formed by each guiding lug is larger than that of a lower port.
The further improvement is that: the dorsad type support frame is composed of a first support rod arranged on the positioning plate and a second support rod structurally connected with the first support rod, a first elbow movably connected with the decorative cover during initial installation is arranged on the second support rod, the first support rod is provided with a second elbow which is used for maintaining the first support rod and the fastening groove movably connected with the fastening groove after being installed and is abutted against the notch at the lower part of the fastening groove, and a third elbow which is used for matching with the second elbow to prevent the second support rod from being disconnected with the fastening groove is arranged on the second support rod and is also arranged on the inner side of the first elbow and is abutted against the supporting surface of the decorative mounting plate after being installed.
The further improvement is that: and the sealing element is arranged on the spraying plug and used for sealing the water outlet of the water inlet pipe.
The further improvement is that: locate the spacing boss lower surface of polygon just is located the inlet tube delivery port periphery is equipped with and is used for holding the second mounting groove of sealing member.
The further improvement is that: the spray plug comprises a stretchable inlet pipe, an internal communication channel of the inlet pipe is used for plugging or opening a round platform of the internal communication channel, the lower bottom surface of the round platform is matched with a water outlet of the inlet pipe, the lower bottom surface of the round platform is provided with a connecting column of the sealing element, and the lower bottom surface of the connecting column is provided with a supporting block matched with the second mounting groove.
The further improvement is that: and a splash disc is fixedly arranged on the other side of the abutting block, which is far away from the water outlet of the water inlet pipe, and the splash disc can slide in the inner cavity of the fire-fighting spray pipe.
The further improvement is that: and the guide rod is fixedly arranged on the edge of the water splashing disc and penetrates through the polygonal limiting boss.
The further improvement is that: the number of the guide rods is two.
The further improvement is that: and the other end of the guide rod is provided with a limiting block for limiting the moving stroke of the guide rod.
The further improvement is that: the splash plate is further provided with a plurality of blades at intervals along the circumferential direction, and the blades connected with the guide rod on the splash plate are in clearance fit with the inner cavity of the fire-fighting nozzle.
The further improvement is that: and the outer surface of one side of the water inlet pipe is provided with a threaded joint in threaded connection with an external pipeline.
The further improvement is that: the cross-sectional area of the internal communication channel of the water inlet pipe from the water inlet to the water outlet is gradually reduced.
After the technical scheme is adopted, the invention has the beneficial effects that:
1. the dress trim cover flushes with the house roof and exposes in the air, dress trim cover or the connection solder joint on it can real-time perception house around the condition of a fire and can be because of high-temperature gas fuses or separate when the condition of a fire takes place, at this moment it drops because of the unstability to strut location structure and positioning disk, spray the end cap and then also along with dropping because of not having the support, come from the rivers blowout of inlet tube begins to put out a fire.
2. The decorative cover and the decorative mounting plate can be coated with pigment with the same color as the roof plate of a house, and the invention does not need to be provided with an external air source and cannot be limited to be used in places with ventilation systems, so that the invention can be applied to not only common decoration places but also luxury decoration places, and has wide application range and no noise.
3. The strutting and positioning device has simple structure and reliable support, so the invention has high reliability and low production cost and maintenance cost.
4. The circular truncated cone of the spraying plug and the water splashing disc can both play a role in enlarging the water splashing area, so that the fire extinguishing area of the fire extinguishing device is large.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a sectional view of the whole structure of the invention in an initial state (when the spray plug is not blocked).
Fig. 2 is a sectional view showing the whole structure of the present invention in a mounted state (when the spray plugs are tightly plugged).
FIG. 3 is a structural cross-sectional view of the puck of the present invention.
Fig. 4 is a structural sectional view of the fire sprinkler main body and the spray plug of the present invention.
Fig. 5 is a schematic structural view of the back-type supporting frame of the present invention.
Fig. 6 is a structural sectional view of the fire sprinkler body of the present invention.
Fig. 7 is a partial structural sectional view of the fire sprinkler main body, the sprinkler plug and the splash plate of the present invention.
Fig. 8 is a structural sectional view of the decorative mounting panel of the present invention.
FIG. 9 is a top view of the structure of the puck of the present invention.
Fig. 10 is a cross-sectional view of the decorative cover of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and specific embodiments. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1 to 10, the technical solution adopted by the present embodiment is:
example 1: the utility model provides a flush formula fire control watering device, includes fire control shower nozzle main part, fire control shower nozzle main part is including having the inlet tube 81 that is linked together with the water source and locating the fire control spray tube 6 of inlet tube 81 below, the delivery port 84 of inlet tube 81 still is equipped with can slide in the 6 inner chambers of fire control spray tube and is used for the shutoff or open the spray end cap 3 of delivery port 84, be equipped with on the spray end cap 3 and be used for sealing the sealing member 33 of inlet tube 81 delivery port 84, 6 inner chambers 66 of fire control spray tube are located spray end cap 3's below still is equipped with and is used for propping the spray end cap 3 against the positioning device 9 that struts of inlet tube 81 delivery port 84, strut positioning device 9 and 6 inner wall swing joint of fire control spray tube, the lower part of strutting positioning device 9 is equipped with can sense surrounding fire condition and can melt or separate and drive whole strutting positioning device 9 and spray end cap 5 that the below 3 drops when the melting point of welding point of melting on and can melt when the temperature.
Strutting positioner 9 still includes positioning disk 2, positioning disk 2 is used for supporting the spraying end cap 3 of fire control shower nozzle in locating fire control spray tube 6 on inlet tube 81 delivery port 84, it is located on the 6 inner walls of fire control spray tube still be equipped with between dress trim cover 5 and positioning disk 2 and can fix a position positioning disk 2 in fire control spray tube 6, and can be outwards right dress trim cover 5 exerts external force and accelerates its fusing or the location structure that struts of separation because of self melting or realize its upper fusible solder joint melting.
As shown in fig. 1 and 5, the spreading and positioning structure includes at least two back-type supporting frames 4, fastening grooves 63 for preventing the positioning plate 2 from rotating and falling off from the inner wall of the fire-fighting nozzle 6 are uniformly distributed on the inner wall of the fire-fighting nozzle 6, the number of the back-type supporting frames 4 in the embodiment is two, the number of the fastening grooves 63 is also two, one end of each back-type supporting frame 4 is movably connected with the fastening groove 63 on the inner wall of the fire-fighting nozzle 6 and positions the positioning plate 2 in the fire-fighting nozzle 6, and the other end of each back-type supporting frame 4 is movably connected with the side edge of the decorative cover 5.
As shown in fig. 1 and 10, the decorative cover 5 is formed by welding two decorative sheets 53 by using fusible alloy welding spots, the two decorative sheets 53 are partially laminated, 4 fusible welding spots are arranged at 4 edges of the laminated part, and the other ends of the two back-type supporting frames 4 are movably connected with the side edges of the two decorative sheets 53. The side edges of the two decorative sheets 53 are respectively provided with a notch 51 movably connected with the two back-shaped support frames 4, the other ends of the two back-shaped support frames 4 penetrate through the notches 51 of the corresponding decorative sheets 53, and the surface of the decorative cover 5 can be coated with paint with the same color as the roof of a house, so that the roof of the house after the device is installed looks more harmonious and beautiful.
As shown in fig. 3 and 9, the positioning plate 2 is uniformly provided with two symmetrical first mounting grooves 21 for movably mounting the two back-to-back type support frames 4, and the two back-to-back type support frames 4 are respectively and correspondingly arranged on the first mounting grooves 21 of the positioning plate 2 and position the positioning plate 2 in the fire-fighting nozzle 6 in a clamping manner.
As shown in fig. 2, the positioning device 9 further includes a screw 22, the screw 22 is disposed in the middle of the positioning plate 2 and is in screw transmission with the positioning plate 2 for driving the positioning plate 2 to slide in the inner cavity 66 of the fire-fighting nozzle 6, an inner hexagonal groove 23 for an external tool to extend into and rotate the screw 22 is disposed on the lower end of the screw 22, and a through hole 52 for an external tool to extend into and drive the positioning plate screw 22 is further disposed in the middle of the stacked portion of the decorative cover 5.
As shown in fig. 8, the decorative mounting plate 1 is arranged on the outer wall of the fire-fighting nozzle 6, a mounting hole 12 is arranged on the decorative mounting plate 1, and the mounting hole 12 is connected with the outer wall of the fire-fighting nozzle 6 in a matching manner. Be equipped with the spacing boss 61 of polygon of fire control spray tube 6 between inlet tube 81 and the fire control spray tube 6, the spacing boss 61 of polygon is equipped with the delivery port 84 of inlet tube 81, the lower terminal surface area of the spacing boss 61 of polygon is greater than decorate the area of the mounting hole 12 of mounting panel 1 so that decorate mounting panel 1 and can be used for the auxiliary stay fire control spray tube 6, decorate on the mounting panel 1 along mounting hole 12 edge be equipped with the bellying ring 13 that the lower terminal surface 62 of the spacing boss 61 of polygon supports, bellying ring 13 upper end is followed bellying ring 13 circumference is still spaced and is equipped with the convenience 6 outer wall installation of fire control spray tube is fixed a position and is had certain flexible guide lug 14, the upper portion port diameter that each guide lug 14 formed is greater than lower part port diameter, and is convenient decorate the installation of mounting panel 1, decorate the colour of mounting panel 1 with the colour that decorates lid 5 is unanimous.
As shown in fig. 5, the back-type supporting frame 4 is composed of a first supporting rod 41 disposed on the positioning plate 2 and a second supporting rod 42 structurally connected with the first supporting rod 41, the second supporting rod 42 is provided with a first elbow 43 movably connected with the decorative cover 5 during initial installation, the first supporting rod 41 is provided with a second elbow 45 which abuts against the lower notch 65 of the fastening groove 63 after installation for maintaining the movable connection between the first supporting rod 41 and the fastening groove 63, and the second supporting rod 42 is further provided with a third elbow 44 which abuts against the supporting surface 11 of the decorative mounting plate 1 after installation for matching with the second elbow 45 to prevent the second supporting rod 42 from being disconnected from the fastening groove 63 after installation.
As shown in fig. 1, the first support bar 41 and the second support bar 42 have a rectangular shape in a normal cross section. In an initial installation state, the upper end surface of the first support rod 41 is in contact connection with the first installation groove 21 on the positioning plate 2, one end 47 of the first support rod 41 extends into the fastening groove 63, the first bend 43 of the second support rod 42 is fastened to the notch 51 of the decorative cover 5, and the two second support rods 42 support the decorative cover 5 together. After the installation is completed, as shown in fig. 2 and 5, the first support rod 41 is in an inclined state, the second bend 45 of the first support rod 41 abuts against the lower notch 65 of the fastening groove 63, the third bend 44 of the second support rod 42 abuts against the support surface 11 of the decorative mounting plate 1, the notches 51 on the decorative cover 5 slide toward the structural connection joint 46 of the first support rod 41 and the second support rod 42 due to the back-opening of the two support frames 4, and the distance between the two notches 51 of the decorative cover 5 must ensure that the maximum angle rotated by the back-type support frame 4 after the installation can still maintain the fastening between the first support rod 41 and the fastening groove 63, and both the decorative cover 5 and the back-type support frame 4 can fall down if the fastening is released.
As shown in fig. 4, the spraying plug 3 includes a circular truncated cone 31 which can extend into the internal communication channel 85 of the water inlet pipe 81 and is used for blocking or opening the internal communication channel 85, the lower bottom surface of the circular truncated cone 31 is matched with the water outlet 84 of the water inlet pipe 81, the lower bottom surface of the circular truncated cone 31 is provided with a connecting column 32 for installing the sealing element 33, and the lower bottom surface of the connecting column 32 is provided with a propping block 37 matched with the second installation groove 67. In the assembly in-process the inclined plane of round platform 31 is favorable to spray the smooth installation of end cap 3, work as under the round platform 31 the bottom surface with when the delivery port cooperation of connecting tube 81 realizes automatic centering, the axis of round platform 31 with the axis coincidence of the inside intercommunication passageway 85 of inlet tube 81 is located sealing member 33 on the spliced pole 32 just can with the axis of round platform 31 is being located for the center is sealed uniformly the inlet tube 81 delivery port is peripheral in the second mounting groove 67, work as it makes to spray end cap 3 receives exogenic action the round platform 31 gets into behind the intercommunication passageway 85, it will support the top to support kicking block 37 sealing member 33 with the sealed laminating of surface on the second mounting groove 67 to realize sealing more effectively the delivery port of inlet tube 81. The circular truncated cone 31 has another important function, that is, when the spraying plug 3 is in an open state for fire extinguishing, water flow from the water inlet pipe 81 will impact on the circumferential outer surface of the circular truncated cone 31 and splash to the periphery by taking an impact point as a reflection point, so that the fire extinguishing area can be greatly enlarged.
As shown in fig. 4 and 7, a splash plate 35 is further fixedly arranged on the other side of the abutting block 37 away from the water outlet 84 of the water inlet pipe 81, the splash plate 35 can slide in the inner cavity 66 of the fire nozzle 6, an eccentric limiting convex ring 30 which limits the moving range of the upper end of the screw 22 is arranged in the middle of the splash plate 35, the splash plate 35 can increase the splashing area when the shower plug 3 is separated from the water outlet 84 of the water inlet pipe 81, at least one guide rod 36 is fixedly arranged on the edge of the splash plate 35 and penetrates through the polygonal limiting boss 61, the number of the guide rods 36 is two, the guide rods 36 can play a role of guiding the shower plug 3 to fall off, a limiting block 38 which limits the moving stroke of the guide rods 36 is arranged at the other end of the guide rods 36, ten splash plates 34 are further arranged on the splash plate 35 at intervals along the circumferential direction, wherein two blades 39 which connect the guide rods 36 on the splash plate 35 are in clearance fit with the inner cavity 66 of the fire nozzle 6. When the spray plug 3 slides in the inner cavity 66 of the fire nozzle 6, the two blades 39 also play a role in centering the splash plate 35 and the inner cavity 66 of the fire nozzle 6 under the cooperation of the guide rod 36, so that the splash plate 35 on the spray plug 3 does not weaken its splashing capacity due to eccentricity, and when the limit block 38 contacts with the upper end surface 68 of the polygonal limit boss 61 on the fire nozzle 6, the splash plate 35 stops falling.
As shown in fig. 7, the outer surface of the water inlet 83 side of the water inlet pipe 81 is provided with a threaded joint 82 which is in threaded connection with an external pipeline, the polygonal limiting boss 61 can be rotated by an external tool to connect or disconnect the threaded joint 82 with the external pipeline, and the bottom surface of the fire sprinkler head can be flush with the bottom surface of the decorative mounting plate 1 by the adjusting action of the threaded joint 82 during installation. The cross-sectional area of the internal communication channel 85 of the water inlet pipe 81 from the water inlet 83 to the water outlet 84 gradually decreases, and as the cross-sectional area decreases, the static pressure of the water flow at the water outlet 84 is smaller than that at the water inlet 83, but the dynamic pressure increases, the water impulse increases, and the water impulse impacts the splash plate 35 to further contribute to the increase of the fire extinguishing area.
Example 2: based on the above technical solution of embodiment 1, the decorative cover 5 may also be composed of a single decorative sheet 53 meltable when being heated, notches 51 movably connected to the back-type supporting frames 4 are respectively provided on both side edges of the decorative sheet 53, the other end of each back-type supporting frame 4 penetrates through the notch 51 of the decorative sheet 53, and the melting point of the single decorative sheet 53 meltable when being heated is: 68. and the temperature is 93-93 ℃.
The basic principle of the invention is as follows:
1. installation process of the fire sprinkler: the state shown in fig. 1 is the initial state of each element, the fire sprinkler is firstly placed upside down for assembly during installation, and the distraction positioning device 9 is prevented from falling off at any time due to instability to influence the assembly. When the water inlet pipe 81 is placed upside down, under the combined action of the guide rod 36 and the circular truncated cone 31, the axis of the circular truncated cone 31 is superposed with the axis of the internal communication channel 85 of the water inlet pipe 81. Due to the gravity, the abutting block 37 of the spray plug 3 abuts the sealing member 33 on the abutting end face of the second mounting groove 67, at this time, an internal hexagonal wrench is used to extend from the middle through hole 52 of the decorative cover 5 into the internal hexagonal groove 23 of the screw 22 to rotate the screw 22, the screw 22 abuts the sealing member 33 on the abutting end face of the second mounting groove 67 more tightly through the splash plate 34 and the abutting block 37, but is not locked yet, since the positioning plate 2 cannot rotate in the cavity 66 of the fire-fighting spray pipe 6 due to the engagement of the back-type support frame 4 provided on the positioning plate 2 with the engaging groove 63 provided on the cavity 66 of the fire-fighting spray pipe 6, the rotation of the screw 22 will cause the positioning plate 2 to slide along the cavity 66 of the fire-fighting spray pipe 6 in a direction away from the spray plug 3, the positioning plate 2 will abut against the first support rod 41 of the back-type support frame 4 through the first mounting groove 21 provided on the positioning plate 2 to cause the first support rod 41 of the back-type support frame 4 to cause the first support rod 41 to rotate so as to cause the decorative cover 5 to be connected with the decorative cover 5 and the second mounting plate 42. According to the principle of acting force and reacting force, the reacting force from the buckling grooves 63 on the decorative cover 5 and the fire-fighting nozzle 6 transmits force to act on the screw rod 22 through the back-type supporting frame 4 and the positioning plate 2, so that the screw rod 22 can better lock and seal the sealing element 33 on the water outlet 84 of the water inlet pipe 81 through the water splashing plate 34 and the abutting block 37, and finally, the fire-fighting sprinkler is inverted and is installed with an external water pipe through the threaded connector 82 on the water inlet pipe 81, and finally, the state shown in fig. 2 is formed.
2. The fire extinguishing principle of the fire-fighting sprinkler is as follows: after the installation is completed, because the decoration cover 5 is flush with the roof of the house, when the house is in a fire and high-temperature gas melts the decoration cover 5 or the connection welding points on the decoration cover 5, the decoration cover 5 will be fused or the two decoration sheets forming the decoration cover 5 will be disconnected, the back-type support frame 4 and the positioning plate 2 will both drop due to instability, the spray plugs 3 will slide downward due to self weight and water pressure from the water inlet pipe 81, the guide rods 36 on both sides of the splash plate 35 will also slide downward until the limiting blocks 38 arranged at the upper end of the guide rods 36 contact with the upper end surface 68 of the polygonal limiting boss 61, the spray plugs 3 and the splash plate 35 stop sliding downward, and the water flow from the water inlet pipe 81 will impact the round table 31 and the splash plate 35 on the spray plugs 3 to increase the water splashing area of the water flow, thereby achieving a better fire extinguishing effect.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are included to illustrate the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. A flush type fire-fighting sprinkler comprises a fire-fighting sprinkler body, wherein the fire-fighting sprinkler body comprises a water inlet pipe communicated with a water source and a fire-fighting spray pipe arranged below the water inlet pipe, and is characterized in that a spray plug capable of sliding in an inner cavity of the fire-fighting spray pipe to plug or open the water outlet is further arranged at a water outlet of the water inlet pipe, a spreading positioning device capable of abutting the spray plug against the water outlet of the water inlet pipe is further arranged below the spray plug in the inner cavity of the fire-fighting spray pipe, the spreading positioning device is movably connected with the inner wall of the fire-fighting spray pipe, and a decoration cover capable of sensing surrounding fire conditions and being melted or separated when the temperature reaches a self melting point or a melting point of a fusible welding point on the spreading positioning device and driving the whole spreading positioning device to fall off from the lower part of the spray plug is arranged at the lower part of the spreading positioning device.
2. A flush fire sprinkler as claimed in claim 1, wherein: the strutting and positioning device further comprises a positioning disc, the positioning disc is arranged in the fire-fighting spray pipe and used for propping a spraying plug of a fire-fighting spray head against the water outlet of the water inlet pipe, the inner wall of the fire-fighting spray pipe is positioned between the decorative cover and the positioning disc, the positioning disc can be positioned in the fire-fighting spray pipe, and the decorative cover can be outwards opposite to the strutting and positioning structure which applies external force to accelerate the decorative cover to fuse or separate due to self fusion or fusion of an easily-fusible welding spot on the decorative cover.
3. A flush fire sprinkler according to claim 2, wherein: the spreading positioning structure comprises at least two back type supporting frames, buckling grooves used for preventing the positioning disc from rotating and falling on the inner wall of the fire-fighting spray pipe are uniformly distributed on the inner wall of the fire-fighting spray pipe, one end of each back type supporting frame is movably connected with the buckling grooves on the inner wall of the fire-fighting spray pipe and positions the positioning disc in the fire-fighting spray pipe, and the other end of each back type supporting frame is movably connected with the side edge of the decorative cover.
4. A flush fire sprinkler according to claim 3, wherein: the decorative cover is formed by welding two decorative sheets by adopting fusible welding points, and the other end of each back-shaped support frame is movably connected with the side edge of each decorative sheet.
5. A flush fire sprinkler according to claim 4, wherein: the side edges of the decorative sheets are respectively provided with a notch which is movably connected with each back-facing type supporting frame, and the other end of each back-facing type supporting frame penetrates out of the notch of the corresponding decorative sheet.
6. A flush fire sprinkler according to claim 3, wherein: first mounting grooves for movably mounting the back-type supporting frames are uniformly distributed on the positioning disc, and the back-type supporting frames are correspondingly arranged on the first mounting grooves of the positioning disc respectively and used for clamping and positioning the positioning disc in the blowout control pipe.
7. A flush fire sprinkler according to claim 2, wherein: the strutting positioning device further comprises a screw rod, the screw rod is arranged on the positioning disk and used for driving the positioning disk to slide in the inner cavity of the fire-fighting spray pipe, and the decorative cover is further provided with a through hole for an external tool to extend into and drive the screw rod of the positioning disk.
8. A flush fire sprinkler according to claim 3, wherein: the back type support frame is two.
9. A flush fire sprinkler according to claim 2 or 3, wherein: the decorative cover may also be comprised of a single decorative sheet that is meltable upon heating.
10. A flush fire sprinkler according to claim 9, wherein: the two side edges of the decorative sheet are respectively provided with a notch which is movably connected with each back-facing support frame, and the other end of each back-facing support frame penetrates out of the notch of the decorative sheet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211261213.0A CN115607886B (en) | 2022-10-14 | 2022-10-14 | Flush type fire-fighting sprinkler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211261213.0A CN115607886B (en) | 2022-10-14 | 2022-10-14 | Flush type fire-fighting sprinkler |
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| CN115607886A true CN115607886A (en) | 2023-01-17 |
| CN115607886B CN115607886B (en) | 2024-05-03 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115607886B (en) | 2024-05-03 |
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