CN113769307A

CN113769307A - Fire sprinkler head for indoor fire fighting

Info

Publication number: CN113769307A
Application number: CN202111153867.7A
Authority: CN
Inventors: 韩鹏学
Original assignee: Individual
Current assignee: Hubei Daopu Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2021-12-10
Anticipated expiration: 2041-09-29
Also published as: CN113769307B

Abstract

The invention relates to the field of fire fighting equipment, and discloses an indoor fire fighting spray header which comprises a threaded connection pipe, a yoke arm support, a sealing plate and a glass tube, wherein the top ends of two support arms of the yoke arm support are fixedly connected to the bottom of the threaded connection pipe, the sealing plate is arranged at the bottom of the threaded connection pipe, and the sealing plate completely seals a middle channel of the threaded connection pipe. Offer the last logical groove structural design of the lower logical groove of switch-on and nipple intermediate channel through two support arms of yoke cantilever crane, the sealing piston that sets up in the cooperation nipple and the atmospheric pressure strutting arrangement between sealing piston and the closing plate, when blockking up the blowout control shower head and detecting, only need all place the water receiving container under every fire sprinkler head, through water pressure in the increase fire-fighting pipeline, thereby through whether have water through the upper logical groove, the lower logical groove flows to in the water receiving container, whether can make things convenient for the measurement personnel to judge the fire sprinkler head of this container department and block up and improve detection efficiency.

Description

Fire sprinkler head for indoor fire fighting

Technical Field

The invention relates to the field of fire fighting equipment, in particular to an indoor fire fighting spray header.

Background

The fire sprinkler head is a common indoor fire extinguishing device for a fire extinguishing system, and mainly comprises a screwed pipe, a yoke arm support, a sealing plate and a glass tube, wherein the screwed pipe is arranged on a fire fighting pipeline and is sealed at the support of the glass tube through the sealing plate, when a fire disaster occurs, flame heats an organic solvent in the glass tube to a set value, the glass tube is broken by expansion, the glass tube disappears the support of the sealing plate, the sealing plate drops, water falls down through the screwed pipe, and a splash disc at the bottom of the yoke arm support is dispersed uniformly to sprinkle water all around to extinguish the fire.

However, water is injected into the pipeline of the fire-fighting spray system for a long time, corrosion and moss grow are easily generated, the spray pipeline is blocked, and therefore the fire-fighting spray system needs to be regularly detected.

Disclosure of Invention

The invention provides an indoor fire-fighting spray header, which has the advantages of convenience for fire-fighting pipeline blockage detection and high detection efficiency, and solves the technical problems in the background technology.

In order to achieve the above purpose, the invention provides the following technical scheme to realize: a fire-fighting spray header for indoor fire fighting comprises a nipple, a yoke arm support, a sealing plate and a glass tube, wherein the top ends of two support arms of the yoke arm support are fixedly connected to the bottom of the nipple, the sealing plate is arranged at the bottom of the nipple and completely seals a middle channel of the nipple, the glass tube positioned at the inner side of the two support arms is arranged between the sealing plate and the yoke arm support, a lower through groove is formed in the middle of the bottom end of the yoke arm support, upper through grooves communicated with the lower through grooves are formed in the two support arms of the yoke arm support, L-shaped through grooves communicated with the middle channel are formed in two sides of the bottom of the nipple and communicated with the upper through grooves, a sealing nipple is movably sleeved in the middle channel of the nipple, an air pressure supporting device is arranged between the bottom of the sealing piston and the top of the sealing plate, and the sealing piston is supported by the air pressure supporting device, and isolating the fire-fighting pipeline at the top of the threaded connection pipe and the L-shaped through groove.

Optionally, the diameter value of the bottom of the lower through groove is larger than that of the top of the lower through groove, a positioning bolt is sleeved on the top thread of the lower through groove, and the top end of the positioning bolt is movably connected with the bottom end of the glass tube.

Optionally, the top of the two sides of the sealing plate is fixedly connected with a transverse side plate, the bottom of the screwed pipe is fixedly connected with two L-shaped limiting plates, the two L-shaped limiting plates are symmetrical about the axis of the screwed pipe, a straight line between the two L-shaped limiting plates and a straight line between the two L-shaped through grooves are perpendicularly crossed, and the L-shaped limiting plates can limit the transverse side plate.

Optionally, the air pressure supporting device comprises a pipe body fixed at the middle part of the top end of the sealing plate, a sealing cover is arranged at the bottom of the pipe body, a piston plate is movably sleeved inside the pipe body, a supporting shaft is fixedly connected to the middle part of the top end of the piston plate, the top end of the supporting shaft is fixedly sleeved with the bottom of the sealing piston, and a space below the piston plate in the pipe body is filled with air.

Optionally, the outer edge of the bottom of the sealing piston is designed to be an arc chamfer, and the chamfer diameter value of the outer edge of the bottom of the sealing piston is larger than the distance value between the inner side of the elastic protrusion and the inner wall of the middle channel of the threaded connection pipe.

Optionally, the top of the sealing piston is inserted with two stoppers, the outer inner walls of the two stoppers are movably connected with the inner wall of the nipple intermediate passage, the bottom of the nipple intermediate passage is provided with an elastic protrusion located above the sealing plate, the two stoppers are located on two sides of a connecting line between the two L-shaped through grooves, and the distance value between the two ends of the two stoppers is greater than the diameter value of the L-shaped through groove.

The invention provides a fire-fighting spray header for indoor fire fighting, which has the following beneficial effects:

1. the indoor fire-fighting spray header is characterized in that two support arms of a yoke arm frame are provided with an upper through groove structure design communicated with a lower through groove and a threaded connection pipe intermediate channel, a sealing piston arranged in the threaded connection pipe and an air pressure supporting device between the sealing piston and a sealing plate are matched, when the fire-fighting spray header is subjected to blockage detection, only a water receiving container is required to be placed under each fire-fighting spray header, the supporting force of the air pressure supporting device is overcome by increasing the pressure of the water pressure in a fire-fighting pipeline and the pressure of the water pressure on the sealing piston, so that whether the fire-fighting spray header at the container is blocked or not can be conveniently judged by detecting personnel through judging whether water flows into the water receiving container through the upper through groove and the lower through groove, the detection of a large number of fire-fighting spray headers of a fire-fighting system is facilitated, and the defects of modes of water spray exercise, manual investigation or additional installation of an electronic detection device or an air flow detection device are effectively avoided, the detection workload is obviously reduced, and the detection efficiency is improved.

2. This indoor fire control is with fire sprinkler head, lead to the groove through the L type, go up logical groove, the structural design who leads to the groove switch-on, when fire control puts out a fire, water in the fire-fighting pipeline falls down through the intermediate channel of nipple, and through the splash pan homodisperse of yoke cantilever crane bottom, thereby put out a fire, and it leads to the groove downwards to lead to the lower logical groove of water follow, go up logical groove, thereby put out a fire to flame under the fire sprinkler head, fire extinguishing effect and whole fire extinguishing efficiency have been improved, effectually avoided current fire sprinkler head because of splash pan and yoke cantilever crane bottom middle part support glass tube's bolt shutoff, lead to the unable direct flame under the fire sprinkler head of using of fire-fighting water, lead to the fire extinguishing efficiency lower, the problem of unable timely putting out a fire.

3. This indoor fire control is with fire sprinkler head utilizes sealing piston and closing plate to form dual sealed, has improved fire sprinkler head's sealed effect, and when the leakage appears in sealing piston department, the water of leaking finally leads to the groove through L type, leads to the groove, the next logical groove falls down to the detection personnel in time know fire sprinkler head's sealed leakage problem.

Drawings

FIG. 1 is a schematic sectional view of the fire sprinkler head of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a top view of a stop block of the present invention 2 construction;

FIG. 4 is a front view of the nipple of the construction of FIG. 1 of the present invention;

FIG. 5 is a bottom view of the nipple of the structure of FIG. 1 of the present invention;

fig. 6 is a bottom view of the sealing plate of the structure of fig. 1 according to the present invention.

In the figure: 1. a threaded connection pipe; 101. an L-shaped through groove; 102. an elastic bulge; 103. an L-shaped limiting plate; 2. a yoke arm support; 201. a lower through groove; 202. an upper through groove; 3. a sealing plate; 301. a transverse side plate; 4. a glass tube; 5. positioning the bolt; 6. an air pressure support device; 601. a pipe body; 602. a piston plate; 603. a support shaft; 7. a sealing piston; 8. and a stop block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a fire sprinkler for indoor fire protection comprises a nipple 1, a yoke arm frame 2, a sealing plate 3 and a glass tube 4, wherein the top end of the nipple 1 is in threaded sleeve connection with a fire pipeline of an indoor ceiling, the top ends of two support arms of the yoke arm frame 2 are both connected to the bottom of the nipple 1 through bolt flanges, the sealing plate 3 is arranged in the middle of the bottom end of the nipple 1, the sealing plate 3 is used for plugging a middle channel of the nipple 1, the glass tube 4 positioned on the inner side of the two support arms is arranged between the sealing plate 3 and the yoke arm frame 2, the glass tube 4 is filled with an organic solution, the organic solution can expand and break the glass tube 4 when the temperature reaches a set temperature value in a fire disaster, the sealing plate 3 immediately falls down, water in the fire pipeline flows downwards through the middle channel of the nipple 1 and is dispersed by a splash water disk at the bottom of the yoke arm frame 2 to extinguish the fire, a lower through groove 201 is formed in the middle of the bottom end of the yoke arm frame 2, the diameter value of the lower through groove 201 bottom is greater than the diameter value at top, and the top screw thread of the lower through groove 201 has cup jointed positioning bolt 5, fix glass tube 4 between yoke arm frame 2 and closing plate 3 through positioning bolt 5, all set up the last logical groove 202 of the lower through groove 201 of switch-on in the both sides support arm of yoke arm frame 2, the L type that the passageway led to the groove 101 in the middle of the switch-on is seted up to the both sides of 1 bottom of nipple, and L type leads to the groove 101 and communicates with each other with last logical groove 202, refer to figure 2, movable sleeve is equipped with sealing piston 7 in the passageway in the middle of nipple 1, be equipped with atmospheric pressure strutting arrangement 6 between the bottom of sealing piston 7 and the top of closing plate 3, sealing piston 7 is under the support of atmospheric pressure strutting arrangement 6, isolated nipple 1 top fire-fighting pipeline and L type lead to the groove 101.

When the blockage detection is carried out on the fire-fighting pipeline and each fire-fighting spray head on the pipeline, a water receiving container such as a bowl and the like is only required to be placed under each fire-fighting spray head, then the water pressure in the fire-fighting pipeline is controlled to be increased, so that the sealing piston 7 overcomes the supporting force of the air pressure supporting device 6 and moves downwards to the position below the L-shaped through groove 101, the L-shaped through groove 101 is communicated with the fire-fighting pipeline, the water in the fire-fighting pipeline sequentially flows through the L-shaped through groove 101, the upper through groove 202 and the lower through groove 201 and flows into the container from the lower through groove 201, after a certain time, the pressurization of the water in the fire-fighting pipeline is stopped, the sealing piston 7 resets and moves upwards under the supporting force of the air pressure supporting device 6, the L-shaped through groove 101 and the fire-fighting channel are isolated again, a detector only needs to observe whether the water exists in the container under each fire-fighting spray head, if the water exists, the fire-fighting spray head has no blockage condition, if no water or a small amount of water is available, the fire-fighting spray header or the connected fire-fighting pipeline is blocked, so that the detection of a large number of fire-fighting spray headers of a fire-fighting system is facilitated, the defects of water spray exercise, manual investigation or the mode of additionally installing an electronic detection device or an airflow detection device and the like are effectively overcome, the detection workload is remarkably reduced, the detection efficiency is improved, and when a fire occurs, the high temperature of flame enables the organic solution to burst the glass tube 4, the sealing plate 3 falls off under the action of the self gravity, namely the water pressure in the fire-fighting pipeline, the water in the fire-fighting pipeline falls down through the middle channel of the screwed pipe 1 and is uniformly dispersed through the water disk at the bottom of the yoke arm frame 2, so as to extinguish the fire, and part of the water flows downwards from the lower through grooves 201 through the L-shaped through grooves 101 and the upper through grooves 202, so as to extinguish the flame right below the fire-fighting spray headers, improved fire extinguishing effect and whole fire extinguishing efficiency, the effectual bolt shutoff of having avoided current fire sprinkler because of splash box and yoke 2 bottom middle part support glass pipe 4 of cantilever crane, lead to the unable direct flame under the fire sprinkler of using of fire-fighting water, lead to the efficiency of putting out a fire lower, the problem of unable timely putting out a fire, and simultaneously, utilize sealing piston 7 and closing plate 3 to form double seal, the sealed effect of fire sprinkler has been improved, and when 7 departments of sealing piston appear leaking, the water of leaking finally leads to groove 101 through the L type, go up logical groove 202, next logical groove 201 falls, so that the detection personnel in time know the sealed leakage problem of fire sprinkler.

Specifically, the air pressure supporting device 6 comprises a tube 601 fixed in the middle of the top end of the sealing plate 3, a sealing cover is arranged at the bottom of the tube 601, a piston plate 602 is movably sleeved inside the tube 601, a supporting shaft 603 is fixedly connected to the middle of the top end of the piston plate 602, the top end of the supporting shaft 603 is fixedly sleeved with the bottom of the sealing piston 7, a space below the piston plate 602 in the tube 601 is filled with air, so that the piston plate 602 is normally located at the top of the inner cavity of the tube 601, after the water pressure in the fire fighting pipe is increased, the downward pressure of water on the sealing piston 7 overcomes the gas pressure in the pipe body 601, the sealing piston 7 moves downwards to enable the L-shaped through groove 101 and the fire fighting pipeline to be in a communicated state, therefore, water in the fire fighting pipeline flows through the L-shaped through groove 101, the upper through groove 202 and the lower through groove 201 and falls down, so that detection personnel can know whether the fire fighting spray header and the fire fighting pipeline are blocked or not.

The top of the sealing piston 7 is inserted with two check blocks 8, the outer inner walls of the two check blocks 8 are movably connected with the inner wall of the middle channel of the threaded connecting pipe 1, the bottom of the middle channel of the threaded connecting pipe 1 is provided with an elastic bulge 102 positioned above the sealing plate 3, referring to figure 3, the two check blocks 8 are positioned at two sides of a connecting line between the two L-shaped through grooves 101, the distance value between two ends of the two check blocks 8 is larger than the diameter value of the L-shaped through groove 101, the sealing piston 7 is inserted on the check blocks 8 to ensure that the check blocks 8 can not rotate when moving downwards along with the sealing piston 7, so when the blockage is not influenced, the L-shaped through grooves 101 and the fire fighting pipeline are in a connection state, in case of fire, the sealing piston 7 moves downwards to pass through the elastic bulge 102 under the action of water pressure to be separated from the threaded connecting pipe 1 and fall off, the two check blocks 8 are positioned at the bottom of the middle channel of the threaded connecting pipe 1 under the limit of the yoke arm frame 2, by utilizing the limit of the two stop blocks 8, part of water in the middle channel of the threaded connection pipe 1 can flow down through the two L-shaped through grooves 101, so that the flame right below the fire sprinkler is extinguished.

The outer edge of sealing piston 7 bottom is the design of circular arc chamfer, and the chamfer diameter value of the outer edge of sealing piston 7 bottom is greater than the inboard interval value with the screwed connection 1 intermediate channel inner wall of elastic bulge 102 to sealing piston 7 can be under the water pressure effect, and smooth passing elastic bulge 102 separates with screwed connection 1, from not influencing rivers and flowing.

Referring to fig. 4-6, the top of the two sides of the sealing plate 3 is fixedly connected with a transverse side plate 301, the bottom of the threaded connection pipe 1 is fixedly connected with two L-shaped limiting plates 103, the two L-shaped limiting plates 103 are symmetrical about the axis of the threaded connection pipe 1, and the straight line between the two L-shaped limiting plates 103 is perpendicular to the straight line between the two L-shaped through grooves 101, the L-shaped limiting plates 103 can limit the transverse side plate 301, when the fire sprinkler is in normal use, the transverse side plate 301 is not in contact with the L-shaped limiting plates 103, after a fire occurs and after the fire is extinguished below a certain fire sprinkler, the sealing plate 3 is plugged again at the bottom of the threaded connection pipe 1, and the transverse side plate 301 is rotated to the L-shaped limiting plate 103, so that the sealing plate 3 is fixed, the fire sprinkler at the position is stopped from continuously spraying water, and at the other fire sprinklers of the fire pipeline are not affected by continuously spraying water to extinguish the fire, thereby avoided the extravagant a large amount of water, saved the water resource when fire control, ensured that the fire control water storage capacity is enough to carry out the work of putting out a fire for a longer time to more serious conflagration region.

When detecting the use in the jam of fighting spray shower head, place the water receiving container under every fire sprinkler head, change the water supply pressure of fire pump, increase the water pressure in the fire pipeline, and keep a plurality of seconds, under the water pressure effect after the increase, overcome body 601 internal gas pressure, make sealing piston 7 move down to the below that L type led to groove 101, thereby make L type lead to groove 101 and fire pipeline be in the state of switch-on, water leads to groove 101 from L type, upper logical groove 202, lower logical groove 201 flows to in the container under, then resume the dehumidification water supply pressure of fire pump, sealing piston 7 resets and moves up, seal L type and lead to groove 101 and fire control passageway again, the detection personnel only need through there being no water in each fire sprinkler head below container, and how much of water yield judges the jam problem of this fire sprinkler head, can.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an indoor fire control is with fire sprinkler head, includes nipple (1), yoke cantilever crane (2), closing plate (3), glass pipe (4), its characterized in that: the top ends of two support arms of the yoke arm support (2) are fixedly connected to the bottom of the threaded connection pipe (1), the sealing plate (3) is arranged at the bottom of the threaded connection pipe (1), the sealing plate (3) completely seals a middle channel of the threaded connection pipe (1), a glass tube (4) positioned on the inner side of the two support arms is arranged between the sealing plate (3) and the yoke arm support (2), a lower through groove (201) is formed in the middle of the bottom end of the yoke arm support (2), an upper through groove (202) communicated with the lower through groove (201) is formed in each of the two support arms of the yoke arm support (2), L-shaped through grooves (101) communicated with the middle channel are formed in two sides of the bottom of the threaded connection pipe (1), the L-shaped through grooves (101) are communicated with the upper through grooves (202), a sealing piston (7) is movably sleeved in the middle channel of the threaded connection pipe (1), and an air pressure supporting device (6) is arranged between the bottom of the sealing piston (7) and the top of the sealing plate (3), and the sealing piston (7) is supported by the air pressure supporting device (6) to isolate the fire-fighting pipeline at the top of the threaded connection pipe (1) from the L-shaped through groove (101).

2. A fire sprinkler head for indoor fire fighting as defined in claim 1, wherein: the diameter value of the bottom of the lower through groove (201) is larger than that of the top of the lower through groove (201), the top thread of the lower through groove (201) is sleeved with a positioning bolt (5), and the top end of the positioning bolt (5) is movably connected with the bottom end of the glass tube (4).

3. A fire sprinkler head for indoor fire fighting as defined in claim 1, wherein: the top of closing plate (3) both sides is equal fixedly connected with horizontal curb plate (301), and two L type limiting plate (103) of bottom fixedly connected with of nipple (1), two L type limiting plate (103) are symmetrical with the axle center of nipple (1), and the straight line between two L type limiting plate (103) and the straight line vertical crossing between two L type logical groove (101), and L type limiting plate (103) can be spacing horizontal curb plate (301).

4. A fire sprinkler head for indoor fire fighting as defined in claim 1, wherein: the pneumatic supporting device (6) comprises a pipe body (601) fixed to the middle portion of the top end of the sealing plate (3), a sealing cover is arranged at the bottom of the pipe body (601), a piston plate (602) is movably sleeved inside the pipe body (601), a supporting shaft (603) is fixedly connected to the middle portion of the top end of the piston plate (602), the top end of the supporting shaft (603) is fixedly sleeved with the bottom of the sealing piston (7), and a space below the piston plate (602) in the pipe body (601) is filled with gas.

5. A fire sprinkler head for indoor fire fighting as defined in claim 1, wherein: the outer edge of the bottom of the sealing piston (7) is designed as an arc chamfer, and the chamfer diameter value of the outer edge of the bottom of the sealing piston (7) is larger than the distance value between the inner side of the elastic bulge (102) and the inner wall of the middle channel of the threaded connection pipe (1).

6. A fire sprinkler head for indoor fire fighting as defined in claim 1, wherein: the top of sealing piston (7) is pegged graft and is had two dog (8), and the outside inner wall of two dog (8) all with the inner wall swing joint of nipple (1) intermediate channel, the bottom of nipple (1) intermediate channel is equipped with elastic bulge (102) that are located closing plate (3) top, two dog (8) are located the both sides of line between two L type logical groove (101), and the interval value at two dog (8) both ends is greater than the diameter value that the logical groove (101) of L type.