CN112843562A

CN112843562A - Flush type spray head

Info

Publication number: CN112843562A
Application number: CN202110367305.6A
Authority: CN
Inventors: 赵开文; 张明鑫
Original assignee: Shanghai Reti Fire Fighting Equipment Co ltd
Current assignee: Shanghai Reti Fire Fighting Equipment Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-05-28

Abstract

The invention relates to the technical field of fire-fighting nozzles, and discloses an flush type nozzle which comprises a nozzle body, a splash plate, a plug, a threaded sleeve and a temperature-sensing trigger mechanism, wherein when a fire disaster occurs, the temperature-sensing trigger mechanism senses that the environmental temperature rises and is triggered to fall from the threaded sleeve, the plug loses the supporting force, and under the action of the water pressure of a through hole, a sealing element, the plug and the splash plate are impacted to move downwards, the sealing element moves downwards to open the through hole of the nozzle body, fire-fighting water is sprayed out through the through hole and is scattered through the splash plate to form uniform water mist to spray and extinguish the fire.

Description

Flush type spray head

Technical Field

The invention relates to the technical field of fire-fighting spray heads, in particular to a flush type spray head.

Background

The fire-fighting spray head is used for a fire-fighting spray system, and when a fire disaster happens, water is sprayed out through the water splashing disc to extinguish the fire.

The splash box of current fire control shower nozzle exposes fixed structure outside the shower nozzle, because the requirement of fire control standard, installation interval and the quantity at the indoor fire control shower nozzle of certain area are specified, the fire control shower nozzle of this kind of structure is installed behind indoor roof, obviously visible splash box and glass bubble structure, beautify the suitability of style with the house fitment not good, aesthetic property and wholeness are relatively poor, sometimes, for the arrival of fitment style, can be with fire control shower nozzle indentation in the furred ceiling of house, it is inside to lead to the glass bubble of temperature sensing usefulness to be located the furred ceiling like this, its temperature sensing sensitivity is relatively poor, can not in time respond to the conflagration.

Disclosure of Invention

The invention aims to provide a flush type spray head to solve the problems that the existing fire control spray head is poor in aesthetic property and integrity, a trigger mechanism is located inside the spray head, temperature sensing sensitivity is poor, and a fire disaster cannot be responded in time.

In order to solve the above problems, the present invention provides a flush type spray head, which comprises a spray head body, a splash plate, a plug, a threaded sleeve and a temperature sensing trigger mechanism, the nozzle body is internally provided with a through hole, the lower end of the nozzle body is provided with a step, a guide post is arranged on the step in a sliding and penetrating way, the lower end of the guide post is connected with the splash plate, the upper end of the choke plug is slidably mounted at the outlet of the through hole through a sealing element, the lower end of the choke plug penetrates through the splash plate, and is provided with a supporting part protruding out of the lower end surface of the water splash plate, an installation cavity communicated with the through hole is arranged inside the step, the water splashing disc is positioned in the mounting cavity, the temperature sensing trigger mechanism is mounted in the mounting cavity through a threaded sleeve, the temperature sensing part of the temperature sensing trigger mechanism is positioned outside the mounting cavity, and the support part is abutted to the upper end of the temperature sensing trigger mechanism;

the temperature sensing trigger mechanism includes support column, clamp plate, reed and the glass bubble that a pair of mirror image set up, the upper end of clamp plate be equipped with the trompil that the supporting part matches, the both ends difference swing joint of clamp plate is in two the upper end of support column, the both ends of glass bubble are connected respectively in two the middle part of support column, the both ends of reed are connected respectively in a pair of the lower extreme of support column, two the both sides of support column are equipped with the fin respectively, the periphery of fin is from the top down including slope section and circular arc section, the swivel nut inner wall be equipped with the taper hole section that the fin matches.

Furthermore, the both ends symmetry of clamp plate is equipped with the draw-in groove, every the upper end of support column all be equipped with draw-in groove joint complex shoulder.

Furthermore, the middle part of each support column is provided with a first connecting hole, the small end of the glass bulb penetrates through one of the first connecting holes, and the large end of the glass bulb abuts against the other first connecting hole.

Furthermore, the lower end of each support column is respectively provided with a second connecting hole, one end of each reed is tightly pressed on one of the second connecting holes through a rivet, the other end of each reed is provided with a boss part, and the boss part is embedded in the other second connecting hole.

Further, a step hole which is arranged in a flaring shape is formed in an outlet of the through hole, and the sealing element is installed in the step hole.

Further, the support part is spherical.

Further, the outside cover of body is equipped with the protection casing.

Further, the outer lower end of the body is sleeved with a decorative ring, and the bottom of the reed is connected with a decorative disc.

Further, the outer diameter of the splash pan and the length of the pressure plate are both smaller than the minimum inner diameter of the screw sleeve.

The invention provides an flush type spray head, which comprises a spray head body, a water splashing disc, a plug, a threaded sleeve and a temperature sensing trigger mechanism, wherein when a fire disaster happens, the temperature sensing trigger mechanism senses that the ambient temperature rises and is triggered to fall from the threaded sleeve, the plug loses the supporting force, under the action of the water pressure of a through hole, a sealing element, the plug and the water splashing disc are impacted to move downwards, the sealing element moves downwards to open the through hole of the spray head body, fire water is sprayed out through the through hole and is scattered through the water splashing disc to form uniform water mist to spray and extinguish the fire.

Drawings

Fig. 1 is a schematic structural view of a flush head in an embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of the flush head in the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a temperature-sensitive trigger mechanism in an embodiment of the invention.

Fig. 4 is a schematic structural view of a flush head in an embodiment of the present invention.

Fig. 5 is a schematic sectional view a-a in fig. 4.

Fig. 6 is a schematic cross-sectional view of C-C in fig. 4.

In the figure, 1, a nozzle body; 2. a splash pan; 3. a plug; 4. a threaded sleeve; 5. a temperature sensing trigger mechanism; 6. a protective cover; 7. a decorative ring; 8. a decorative plate; 101. a through hole; 102. a step; 103. a guide post; 104. a mounting cavity; 105. a stepped bore; 501. a support pillar; 502. pressing a plate; 503. a reed; 504. a glass bulb; 505. a fin; 5051. an inclined section; 5052. a circular arc section; 506. a card slot; 507. a shoulder portion; 508. a first connection hole; 509. a second connection hole; 510. riveting; 401. a tapered bore section; 301. a seal member; 302. a support portion.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 6, a flush type sprinkler according to an embodiment of the present invention is schematically shown, including a sprinkler body 1, a splash plate 2, a plug 3, a threaded sleeve 4 and a temperature sensing trigger mechanism 5, a through hole 101 is provided in the sprinkler body 1, an inlet end of the through hole 101 is used for connecting fire water, a step 102 is provided at a lower end of the sprinkler body 1, a guide post 103 is slidably inserted on the step 102, a lower end of the guide post 103 is connected with the splash plate 2, wherein the guide post 103 can guide the movement of the splash plate 2 to ensure the movement stability of the splash plate 2, an upper end of the plug 3 is slidably mounted at an outlet of the through hole 101 through a sealing member 301, the sealing member 301 is generally a sealing elastic pad, the lower end of the plug 3 penetrates through the splash plate 2 and has a supporting portion 302 protruding from a lower end surface of the splash plate 2, a mounting cavity 104 communicating with the through hole 101 is provided inside the step 102, the splash plate 2 is located in, temperature sensing trigger mechanism 5 passes through the swivel nut 4 and installs to installation cavity 104 in, generally, thereby installation cavity 104 is equipped with the internal thread of being connected with the swivel nut 4 cooperation and is convenient for the installation of swivel nut 4, and the temperature sensing portion of temperature sensing trigger mechanism 5 is located outside installation cavity 104, and supporting part 302 butt in the upper end of temperature sensing trigger mechanism 5, after temperature sensing trigger mechanism 5 is triggered, under the hydraulic pressure effect of through-hole 101, strikes sealing member 301 and can make splash box 2 downstream and then switch-on fire water realize the water spray fire extinguishing.

Specifically, the temperature sensing trigger mechanism 5 comprises a pair of supporting columns 501, a pressing plate 502, a reed 503 and a glass bulb 504 which are arranged in a mirror image manner, an opening matched with the supporting portion 302 is formed in the upper end of the pressing plate 502, two ends of the pressing plate 502 are respectively movably connected to the upper ends of the two supporting columns 501, two ends of the glass bulb 504 are respectively connected to the middle portions of the two supporting columns 501, two ends of the reed 503 are respectively connected to the lower ends of the two supporting columns 501, fins 505 are respectively arranged on two sides of each supporting column 501, the periphery of each fin 505 comprises an inclined section 5051 and an arc section 5052 from bottom to top, and a taper hole section 401 matched with the fins 505 is formed in. Preferably, in order to facilitate the supporting portion 302 to be matched with the opening hole so as to effectively block fire water in the spray head in an installation state, the top end of the supporting portion 302 is spherical, when the supporting portion is installed, the glass bulb 504 is installed in the middle of the two supporting columns 501, the upper parts of the two supporting columns 501 are movably clamped in the clamping groove 506 of the pressing plate 502, the lower parts of the two supporting columns 501 are connected through the spring 503, then the whole supporting column is installed in the installation cavity 104 through the screw sleeve 4, when the screw sleeve 4 is screwed upwards, the inclined section 5051 on the fin 505 is gradually guided into the conical hole section 401 of the screw sleeve 4, and finally the inner wall of the conical hole section 401 is abutted to the circular arc section 5052, at this time, the conical hole section 401 of the screw sleeve 4 exerts a pressing force on the circular arc section 5052 of the fin 505 of the supporting column 501, so that the temperature-sensing trigger mechanism 5 can; specifically, the pressing force applied by the screw sleeve 4 to the fin 505 has an upward component due to the action of the taper hole section 401, the component can act on the supporting portion 302 of the plug 3 to push the plug 3 to the end surface of the through hole 101 through the transmission of the supporting column 501 and the pressing plate 502, so as to seal the through hole 101 to seal the fire-fighting water in the through hole 101, meanwhile, the pressing force applied by the screw sleeve 4 to the fin 505 has a horizontal component, the horizontal component enables the upper ends of the two supporting columns 501 to abut against the clamping groove 506 on one hand, and on the other hand, the horizontal component is superposed with the horizontal pulling force generated by the reed 503 to the lower parts of the two supporting columns 501, so as to enable the two supporting columns 501 to draw together and rotate inwards, the horizontal component and the pulling force of the reed 503 are balanced by the supporting forces of the glass bulb 504 and the pressing plate 502 in the fire-fighting duty state to keep the, the environmental temperature rises, glass bubble 504 breaks, the middle part between two support columns 501 loses the holding power, the pulling force that reed 503 shrink produced and the horizontal component that swivel nut 4 applyed to fin 505 make two support columns 501 inwards revolve the retraction each other around draw-in groove 506, after revolving the retraction in two support columns 501, temperature sensing trigger mechanism 5 wholly collapses and can drop from swivel nut 4, at this moment, end cap 3 loses the holding power, under the pressure of the inside fire water of through-hole 101, sealing member 301 is backed up downwards, make splash box 2 drive guide pillar 103 move down and open the export of through-hole 101, fire water sprays downwards to splash box 2, atomize the blowout through splash box 2's effect and realize putting out a fire.

The splash plate 2 is hidden in the installation cavity 104, so that the nozzle is good in aesthetic property, and meanwhile, the temperature sensing trigger mechanism 5 is arranged outside the installation cavity 104 and exposed, so that the temperature sensing is sensitive, and the trigger can be quickly responded.

In this embodiment, the two ends of the pressing plate 502 are symmetrically provided with the clamping grooves 506, the upper end of each supporting column 501 is provided with the shoulder 507 which is in clamping fit with the clamping grooves 506, and the pressing plate 502 is clamped in the clamping grooves 506 through the shoulders 507, so that reliable connection with the supporting columns 501 is realized. Furthermore, the middle of each support column 501 is provided with a first connection hole 508, the small end of the glass bulb 504 passes through one of the first connection holes 508, the large end of the glass bulb 504 abuts against the other first connection hole 508, and after the glass bulb 504 is broken by heat, the middle of the support column 501 loses the supporting force, so that the temperature sensing trigger mechanism 5 falls downward to drive the splash plate 2 to move downward. In this embodiment, the lower end of each supporting column 501 is provided with a second connecting hole 509, one end of each reed 503 is pressed onto one of the second connecting holes 509 through a rivet 510, the other end of each reed 503 is provided with a boss portion, the boss portion is embedded into the other second connecting hole 509, the assembly of the reed 503 can be facilitated by arranging the boss portion, the reed 503 can be directly clamped in the second connecting hole 509, the lower end of each supporting column 501 is connected through the corresponding reed 503, the reed 503 has a certain elastic tension, after the glass bulb 504 is broken, the middle portion of each supporting column 501 loses the supporting force, under the action of the tension of the corresponding reed 503, the two supporting columns 501 are drawn together inwards, so that the fins 505 of the supporting columns 501 are separated from the tapered hole sections 401 of the screw sleeves 4, and the temperature sensing trigger mechanism 5 falls down.

Preferably, the outlet of the through hole 101 is provided with a step hole 105 arranged in a flaring shape, the sealing member 301 is installed in the step hole 105, and the step hole 105 is arranged in a flaring shape, so that when the temperature-sensitive trigger mechanism 5 falls down, the sealing member 301 can be conveniently driven to move downwards along the flared step hole 105 to open the through hole 101 to extinguish a fire by spraying water.

Generally, a protective cover 6 is covered on the outer part of the body, and the guide post 103 is protected by the protective cover 6, so that the guide post 103 is prevented from being damaged.

Generally, the outside lower extreme cover of body is equipped with the decoration circle, and the reed bottom is connected with the decorative dish, and like this, after the shower nozzle installation, through the decoration effect of decoration circle and decorative dish, the shower nozzle is good with house decoration compatibility, and aesthetic property and functionality are all equipped with.

Generally, the outer diameter of the splash plate 2 and the length of the pressing plate 502 are both smaller than the minimum inner diameter of the threaded sleeve 4, so that after the temperature-sensing trigger mechanism 5 is started, the temperature-sensing trigger mechanism 5 can be quickly and smoothly separated from the installation cavity 104, so that the splash plate 2 can be quickly slid out of the installation cavity 104, the sensitivity is good, and the outer diameter of the splash plate 2 is larger than the diameter of the orifice of the through hole 101 under normal conditions.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A flush type spray head is characterized by comprising a spray head body, a splash plate, a plug, a threaded sleeve and a temperature sensing trigger mechanism, wherein a through hole is formed in the spray head body, a step is arranged at the lower end of the spray head body, a guide pillar is slidably arranged on the step in a penetrating manner, the lower end of the guide pillar is connected with the splash plate, the upper end of the plug is slidably mounted at an outlet of the through hole through a sealing element, the lower end of the plug penetrates through the splash plate and is provided with a supporting part protruding out of the lower end face of the splash plate, an installation cavity communicated with the through hole is formed in the step, the splash plate is located in the installation cavity, the temperature sensing trigger mechanism is mounted in the installation cavity through the threaded sleeve, a temperature sensing part of the temperature sensing trigger mechanism is located outside the installation cavity, and the supporting part abuts against the upper end of the temperature sensing trigger;

the temperature sensing trigger mechanism includes support column, clamp plate, reed and the glass bubble that a pair of mirror image set up, the upper end of clamp plate be equipped with the trompil that the supporting part matches, the both ends difference swing joint of clamp plate is in two the upper end of support column, the both ends of glass bubble are connected respectively in two the middle part of support column, the both ends of reed are connected respectively in two the lower extreme of support column, two the both sides of support column are equipped with the fin respectively, the periphery of fin is from the top down including slope section and circular arc section, the swivel nut inner wall be equipped with the taper hole section that the fin matches.

2. The flush head as claimed in claim 1, wherein the two ends of the pressure plate are symmetrically provided with a slot, and the upper end of each support post is provided with a shoulder portion which is engaged with the slot.

3. The flush head as claimed in claim 2, wherein each of the support posts has a first connection hole at a middle portion thereof, the small end of the glass bulb passes through one of the first connection holes, and the large end of the glass bulb abuts against the other of the first connection holes.

4. The flush type showerhead according to claim 3, wherein each of the support posts has second coupling holes at a lower end thereof, one end of the spring plate is pressed against one of the second coupling holes by a rivet, and the other end of the spring plate has a boss portion which is fitted into the other of the second coupling holes.

5. The flush head as claimed in claim 4, wherein a stepped hole is provided at an outlet of the through-hole in a flared arrangement, and the sealing member is installed in the stepped hole.

6. The flush head of claim 5, wherein said support is spherical.

7. The flush head of claim 6, wherein the body is externally shrouded with a shroud.

8. The flush head as claimed in claim 7, wherein a decorative ring is fitted over the outer lower end of the body, and a decorative disc is attached to the bottom of the spring plate.

9. The flush tip as claimed in claim 1, wherein the splash plate outer diameter and the pressure plate length are both less than the smallest inner diameter of the threaded sleeve.