CN114419833A - Dustproof smoke alarm equipment for large warehouse - Google Patents
Dustproof smoke alarm equipment for large warehouse Download PDFInfo
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- CN114419833A CN114419833A CN202210086887.5A CN202210086887A CN114419833A CN 114419833 A CN114419833 A CN 114419833A CN 202210086887 A CN202210086887 A CN 202210086887A CN 114419833 A CN114419833 A CN 114419833A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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Abstract
The invention belongs to the technical field of smoke alarms, and particularly relates to dustproof smoke alarm equipment for a large warehouse, which comprises a shell and a probe arranged in the shell; a group of vent holes communicated with the probe are uniformly distributed on the circumference of the bottom of the shell; the bottom of the shell is provided with a circular ring, and the bottom of the circular ring is fixedly connected with an umbrella-shaped drainage cover; during operation, in the prior art, a smoke alarm device in a warehouse is often arranged on a steel truss at the top, but due to the fact that the inside of the warehouse is high in clear height, when goods stored on a shelf in the warehouse are ignited and smoke is generated, the smoke is continuously diffused after rising, the concentration of the smoke is further reduced, delay is generated after a probe detects smoke information, and the response sensitivity of the alarm device to fire is reduced; at the moment, the smoke is converged and drained through the drainage cover, the efficiency of the smoke entering the shell is increased, the sensing sensitivity of the probe to the smoke in a small range is further increased, early warning is further timely given out in the early stage of a fire disaster, the extinguishing efficiency of the fire disaster is increased, and the loss is reduced.
Description
Technical Field
The invention belongs to the technical field of smoke alarms, and particularly relates to dustproof smoke alarm equipment for a large warehouse.
Background
The smoke alarm is based on the principle that smoke is detected through an alarm unit in the smoke alarm, and a buzzing sheet in the smoke detector can make a sound, so that a user is warned to put out a fire in time, and the fire loss is reduced.
A chinese patent with publication number CN107093307B discloses a miniature smoke alarm, including base and the lid along base axial displacement, the lateral wall of lid is provided with the smoke inlet that supplies the smog to get into the detection portion, be provided with the elastic part that keeps away from the base through elastic action drive lid between lid and the base, be provided with the spacing portion that breaks away from the base through butt effect restriction lid between lid and the base, control circuit board is provided with the first button that is triggered through the removal of lid to the base direction in the one side of base, the test and the stop of first button control smoke alarm, detection portion and sound producing portion are connected with the power electricity in the base.
Among the prior art in the warehouse smog alarm device often install on the steel truss at top, nevertheless because net height is higher in the warehouse for when the goods of depositing on the goods shelves in the warehouse are on fire and produce smog, smog rises the back and constantly diffuses, and then reduces the concentration of smog, makes the probe detect and produces delay after the smog letter, reduces the response sensitivity of alarm device conflagration.
Therefore, the invention provides dustproof smoke alarm equipment for a large warehouse.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a dustproof smoke alarm device for a large warehouse, which comprises a shell and a probe arranged in the shell; a group of vent holes communicated with the probe are uniformly distributed on the circumference of the bottom of the shell; the bottom of the shell is provided with a circular ring, and the bottom of the circular ring is fixedly connected with an umbrella-shaped drainage cover; during operation, in the prior art, a smoke alarm device in a warehouse is often arranged on a steel truss at the top, but due to the fact that the inside of the warehouse is high in clear height, when goods stored on a shelf in the warehouse are ignited and smoke is generated, the smoke is continuously diffused after rising, the concentration of the smoke is further reduced, delay is generated after a probe detects smoke information, and the response sensitivity of the alarm device to fire is reduced; at the moment, the smoke is converged and drained through the drainage cover, the efficiency of the smoke entering the shell is increased, the sensing sensitivity of the probe to the smoke in a small range is further increased, early warning is further timely given out in the early stage of a fire disaster, the extinguishing efficiency of the fire disaster is increased, and the loss is reduced.
Preferably, a group of pull ropes are uniformly distributed on the circumference of the bottom of the drainage cover, one end of each pull rope is connected with the drainage cover, and the other end of each pull rope penetrates through the shell and extends into the shell; a wind-up roll is rotatably connected in the position corresponding to the pull rope in the shell and is driven to rotate by an electric motor; the end part of the pull rope is wound on the winding roller; through the rotation of wind-up roll and release stay cord for the stay cord drives ring and drainage cover and descends to storehouse goods shelf top, and then makes the smog that produces when the goods catches fire on the goods shelves collect by the drainage cover, reduces smog and is blown away and reduce concentration, makes smog through inside the collection back of drainage cover through ring spiral shell screwing in rise and get into the casing through the ventilation hole, increases alarm device's response speed, accelerates fire extinguishing efficiency.
Preferably, a group of brush rods are uniformly distributed on the circumference of the top of the circular ring at the position corresponding to the vent hole, and a group of bristles are uniformly distributed on the periphery of each brush rod; the top end of the brush rod is bent towards the direction close to the axis of the circular ring; when carrying the stay cord through the wind-up roll rolling, the stay cord drives the ring and rises and support the casing bottom, and in the brush-holder stud at ring top ran through the ventilation hole and inserted the casing simultaneously, the cooperation brush hair cleared up sedimentary dust in to the casing, reduces because the strong wind blows the probe wrong report police that sedimentary dust arouses in the casing.
Preferably, the drainage cover comprises a group of fixed plates which are uniformly distributed at intervals on the circumference, a flexible fan-shaped disc is arranged between every two adjacent fixed plates, the top of the fan-shaped disc is fixedly connected with the ring, and iron powder is embedded in the fan-shaped disc; the two sides of the sector disc are in staggered lap joint with the fixing plate; magnetic strips are fixedly connected with the two sides of the fixed plate and the corresponding positions of the fan-shaped discs; the bottom end of the pull rope is fixedly connected with the position, close to the circular ring, of the inner periphery of the sector disc after bypassing the lower edge of the sector disc; a wedge-shaped cavity is formed in the fan-shaped disc, the brush rod is elastic, a first hole is formed in the brush rod in an opening and closing mode, and the first hole is communicated with the wedge-shaped cavity through a second hole formed in the circular ring; after upwards drawing the drainage cover through the stay cord, the ring supports the casing bottom, later the stay cord continues to rise, make the stay cord drive sector disc rolling and extrusion, make the compressed air that produces in the wedge intracavity fill into the hole No. one through No. two holes, make and stretch into the brush-holder stud inflation in the casing, further increase the scrubbing dust collection efficiency of expanded brush-holder stud to shells inner wall, the brush-holder stud after the inflation simultaneously increases the coverage that cleans of brush hair, further reduce the influence of dust in the casing to alarm device sensitivity and stability.
Preferably, the periphery of the brush rod is sleeved with a contractible elastic water absorption layer, and the bristles penetrate through the water absorption layer and are fixedly connected with the brush rod; the brush rod is sleeved with an elastic cover at a position close to the root part, and the lower edge of the elastic cover is hermetically connected with the end face of the circular ring; the brush rod penetrates through the elastic cover and is in sliding connection with the elastic cover; sponge is filled in the elastic cover, and absolute ethyl alcohol is soaked in the sponge; through the ring be close to and support the in-process of tight casing bottom, the elasticity cover receives extrusion deformation for extrude absolute ethyl alcohol behind its inside sponge pressurized, absolute ethyl alcohol overflows through the gap between elasticity cover and the brush-holder stud, later absolute ethyl alcohol constantly spreads in the water absorption in situ, make the layer of absorbing water moist, and then further increase the layer of absorbing water and to dry dust clean capture efficiency, reduce the raise dust, and then the wrong report police that the raise dust arouses when reducing clearance shells inner wall.
Preferably, the diameter of one end of the brush rod, which is far away from the disc, is gradually increased, and the wall thickness of the first hole is uniform; a group of steel balls are filled in the first hole, an arc-shaped groove is formed in the side face of each steel ball, and the diameter of each steel ball is between the maximum diameter and the minimum diameter of the first hole; keep away from the one end diameter crescent of disc through the brush-holder stud for the brush-holder stud tip expands and assembles after inserting the casing, makes the brush-holder stud tip after the inflation highly increase and contact the probe after extrudeing each other, increases the layer that absorbs water on the brush-holder stud and to the clearance effect of cleaning of probe, further guarantees alarm equipment's normal operating, and the dust collection efficiency is rubbed in the vibration that increases the brush-holder stud when the steel ball rolls.
Preferably, the water absorbing layer is fixedly connected with an annular elastic strip close to the bristles, one side of the elastic strip, far away from the water absorbing layer, is provided with an opening bristle, and is fixedly connected with an arc-shaped elastic rod, and the end part of the elastic rod penetrates through the elastic strip and extends to the inner periphery of the elastic strip; a group of limiting balls are uniformly distributed at the position of the elastic rod close to the free end, and the diameter of the limiting ball at the end part of the elastic rod is larger than that of other limiting balls; when inserting the ventilation hole through the brush-holder stud, the brush hair constantly bends and rebounds when passing through the ventilation hole along with the brush-holder stud for the brush hair root constantly swings, and then drives the elastic rod constantly and stretches out and draws back, and the reciprocating motion of elastic rod drives spacing ball and constantly runs through the elastic strip, and whenever when spacing ball extrusion and drawn the through hole of seting up on the elastic strip, spacing ball drives the elastic strip constantly and opens and shuts and wriggle, makes the elastic strip parcel and stores partial dust, further reduces the loss of dust in the casing.
Preferably, the bristles are sleeved with a slip ring, and the slip ring is connected with the bristles in a sliding manner; a through groove is formed in the side face of the slip ring, an elastic clamping ring with an opening is arranged in the through groove, and the clamping ring is embedded into the through groove and encircles the bristles; through the position of adjustment snap ring apart from the brush-holder stud, the reciprocating motion distance of adjustment elastic rod, and then the opening size of adjustment elastic strip, the effect of accomodating of the mud strip of the different diameters that further increase elastic strip formed to the water absorption layer kneading.
Preferably, two sides of one end of the pull rope close to the fan-shaped disc are fixedly connected with foldable unfolding wings, and a group of elastic umbrella ribs are embedded in the folding wings; the back exhibition wing is drawn forth by the wind-up roll through the stay cord and is expanded under the drive of rib, and then forms the wind-break wall, is blown away by the crosswind when reducing smog through the space between ring and the casing, simultaneously because the setting of exhibition wing is close to the one end of sector disc at the stay cord for there is not the exhibition wing near the casing position when the stay cord releases completely, and then reduces blockking of the smog that other positions in warehouse top are wafted, further increases the sensing area of probe.
Preferably, the outer edge of each unfolding wing is provided with a flexible magnetic strip, and the magnetic strips fixedly connected to the unfolding wings between the adjacent pull ropes attract each other; through the mutual attraction of the magnetic strips, the sealing performance of a cylinder formed by surrounding the unfolded spread wings is further improved, the dissipation of smoke flying out of the circular ring is further reduced, and the response speed of the alarm device is increased.
The invention has the following beneficial effects:
1. according to the dustproof smoke alarm device for the large warehouse, the smoke is converged and drained through the drainage cover, the efficiency of the smoke entering the shell is increased, the sensing sensitivity of the probe to the smoke in a small range is further increased, early warning is further timely sent out in the early stage of a fire disaster, the extinguishing efficiency of the fire disaster is increased, and loss is reduced.
2. According to the dustproof smoke alarm device for the large warehouse, the stay cord is rotated through the winding roller and released, so that the stay cord drives the circular ring and the drainage cover to fall to the top of the goods shelf in the warehouse, smoke generated when goods on the goods shelf catch fire is collected by the drainage cover, the smoke is reduced by being blown away, the concentration is reduced, the smoke is collected by the drainage cover, then spirally rises through the circular ring and enters the shell through the ventilation hole, the response speed of the alarm device is increased, and the fire extinguishing efficiency is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a cross-sectional view of the ring and disk segments of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a perspective view of the slip ring of the present invention;
FIG. 6 is a cross-sectional view of the housing of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at B;
FIG. 8 is a view taken along line C of FIG. 7;
in the figure: the device comprises a shell 1, a probe 11, a vent hole 12, a ring 13, a drainage cover 14, a pull rope 15, a winding roller 16, a brush rod 17, bristles 18, a fixing plate 2, a sector disc 21, a magnetic strip 22, a wedge-shaped cavity 24, a first hole 25, a second hole 26, a water absorption layer 27, an elastic cover 28, a steel ball 29, an elastic strip 3, an elastic rod 31, a limiting ball 32, a sliding ring 33, a through groove 34, a clamping ring 35, a wing 36, umbrella ribs 37 and a magnetic strip 38.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
As shown in fig. 1 to 2, the dust and smoke prevention alarm device for a large warehouse according to the embodiment of the present invention includes a housing 1 and a probe 11 disposed in the housing 1; a group of vent holes 12 communicated with the probe 11 are uniformly distributed on the circumference of the bottom of the shell 1; the bottom of the shell 1 is provided with a circular ring 13, and the bottom of the circular ring 13 is fixedly connected with an umbrella-shaped drainage cover 14; during operation, in the prior art, a smoke alarm device in a warehouse is often arranged on a steel truss at the top, but due to the fact that the inside of the warehouse is high in clear height, when goods stored on a shelf in the warehouse are ignited and smoke is generated, the smoke is continuously diffused after rising, the concentration of the smoke is further reduced, delay is generated after a probe 11 detects smoke information, and the response sensitivity of the alarm device to fire is reduced; at the moment, the smoke is converged and drained through the drainage cover 14, the efficiency of the smoke entering the shell 1 is increased, the sensing sensitivity of the probe 11 to the smoke in a small range is further increased, early warning is further timely given out in the early stage of a fire, the extinguishing efficiency of the fire is increased, and loss is reduced.
As shown in fig. 6, a group of pull ropes 15 are uniformly distributed on the circumference of the bottom of the drainage cover 14, one end of each pull rope 15 is connected with the drainage cover 14, and the other end of each pull rope 15 penetrates through the shell 1 and extends into the shell 1; a winding roller 16 is rotatably connected to a position, corresponding to the pull rope 15, in the shell 1, and the winding roller 16 is driven to rotate by an electric motor; the end part of the pull rope 15 is wound on a winding roller 16; rotate and release stay cord 15 through wind-up roll 16 for stay cord 15 drives ring 13 and drainage cover 14 and descends to storehouse goods shelf top, and then makes the smog that produces when the goods catches fire on the goods shelves collect by drainage cover 14, reduces smog and is blown off the reduction concentration, makes smog through drainage cover 14 collect after through ring 13 spiral shell screwing in and through ventilation hole 12 get into inside casing 1, increase alarm device's response speed, accelerate fire extinguishing efficiency.
As shown in fig. 3, a group of brush rods 17 are uniformly distributed on the top of the circular ring 13 at the circumference corresponding to the ventilation holes 12, and a group of bristles 18 are uniformly distributed on the periphery of each brush rod 17; the top end of the brush rod 17 is bent towards the direction close to the axis of the circular ring 13; when carrying stay cord 15 through the rolling of wind-up roll 16, stay cord 15 drives ring 13 and rises and support casing 1 bottom, and the brush-holder stud 17 at ring 13 top runs through ventilation hole 12 and inserts in the casing 1 simultaneously, and the sedimentary dust in the cooperation brush hair 18 is cleared up in casing 1, reduces because the strong wind blows the probe 11 wrong report police that sedimentary dust arouses in the casing 1.
The drainage cover 14 comprises a group of fixing plates 2 which are uniformly distributed at intervals on the circumference, a flexible fan-shaped disc 21 is arranged between every two adjacent fixing plates 2, the top of the fan-shaped disc 21 is fixedly connected with the circular ring 13, and iron powder is embedded in the fan-shaped disc 21; the two sides of the sector disc 21 are in staggered lap joint with the fixing plate 2; magnetic strips 22 are fixedly connected with the two sides of the fixed plate 2 at positions corresponding to the fan-shaped disc 21; the bottom end of the pull rope 15 is fixedly connected with the inner periphery of the sector disc 21 close to the circular ring 13 after bypassing the lower edge of the sector disc 21; a wedge-shaped cavity 24 is formed in the sector disc 21, the brush rod 17 is elastic, a first hole 25 is formed in the brush rod 17 in a combined mode, and the first hole 25 is communicated with the wedge-shaped cavity 24 through a second hole 26 formed in the circular ring 13; after drawing drainage cover 14 upwards through stay cord 15, ring 13 supports the casing 1 bottom, later stay cord 15 continues to rise, make stay cord 15 drive sector disc 21 rolling and extrusion, make the compressed air that produces in the wedge chamber 24 fill in No. 25 through No. two holes 26, make the brush-holder stud 17 that stretches into in the casing 1 expand, further increase the dust collection efficiency of rubbing of expanded brush-holder stud 17 to casing 1 inner wall, brush-holder stud 17 after the inflation increases the cleaning coverage of brush hair 18 simultaneously, further reduce the influence of dust in the casing 1 to alarm device sensitivity and stability.
As shown in fig. 4, a shrinkable elastic water absorption layer 27 is sleeved on the periphery of the brush rod 17, and the bristles 18 penetrate through the water absorption layer 27 and are fixedly connected with the brush rod 17; the brush rod 17 is sleeved with an elastic cover 28 near the root part, and the lower edge of the elastic cover 28 is hermetically connected with the end face of the circular ring 13; the brush rod 17 penetrates through the elastic cover 28 and is connected with the elastic cover 28 in a sliding mode; the elastic cover 28 is filled with sponge, and the sponge is soaked with absolute ethyl alcohol; be close to and support the in-process of tight casing 1 bottom through ring 13, elasticity cover 28 receives extrusion deformation for extrude absolute ethyl alcohol behind its inside sponge pressurized, absolute ethyl alcohol overflows through the gap between elasticity cover 28 and brush-holder stud 17, later absolute ethyl alcohol constantly spreads in layer 27 absorbs water, make layer 27 that absorbs water moist, and then further increase layer 27 that absorbs water and to dry dust clean capture efficiency, reduce the raise dust, and then the wrong report police that the raise dust arouses when reducing clearance casing 1 inner wall.
The diameter of one end of the brush rod 17, which is far away from the disc, is gradually increased, and the wall thickness of the first hole 25 is uniform; a group of steel balls 29 are filled in the first hole 25, an arc-shaped groove is formed in the side face of each steel ball 29, and the diameter of each steel ball 29 is between the maximum diameter and the minimum diameter of the first hole 25; keep away from the one end diameter crescent of disc through brush-holder stud 17 for brush-holder stud 17 tip expands and assembles after inserting casing 1, makes the brush-holder stud 17 tip after the inflation highly increase and contact probe 11 after extrudeing each other, increases the cleaning effect of wiping of layer 27 that absorbs water to probe 11 on the brush-holder stud 17, further guarantees alarm device's normal operating, and the dust collection efficiency is rubbed in the vibration that increases brush-holder stud 17 when steel ball 29 rolls.
The water absorbing layer 27 is fixedly connected with an annular elastic strip 3 at a position close to the bristles 18, one side of the elastic strip 3 far away from the water absorbing layer 27 is provided with an opening bristle 18 and fixedly connected with an arc-shaped elastic rod 31, and the end part of the elastic rod 31 penetrates through the elastic strip 3 and extends to the inner periphery of the elastic strip 3; a group of limiting balls 32 are uniformly distributed at the position of the elastic rod 31 close to the free end, and the diameter of the limiting ball 32 at the end part of the elastic rod 31 is larger than that of other limiting balls 32; when inserting ventilation hole 12 through brush-holder stud 17, brush hair 18 is constantly crooked and bounce-back when brush-holder stud 17 passes through ventilation hole 12, make 18 roots of brush hair constantly swing, and then it constantly stretches out and draws back to drive elastic rod 31, elastic rod 31's reciprocating motion drives spacing ball 32 and constantly runs through elastic strip 3, when spacing ball 32 extrudees and marks the through hole of seting up on elastic strip 3, spacing ball 32 drives elastic strip 3 and constantly opens and shuts and wriggle, make elastic strip 3 parcel and storage part dust, further reduce the loss of dust in the casing 1.
As shown in fig. 5, the brush bristles 18 are sleeved with a slip ring 33, and the slip ring 33 is slidably connected with the brush bristles 18; a through groove 34 is formed in the side face of the slip ring 33, an elastic clamping ring 35 with an opening is arranged in the through groove 34, and the clamping ring 35 is embedded in the through groove 34 and surrounds the bristles 18; through the position of adjusting snap ring 35 apart from brush-holder stud 17, the reciprocating motion distance of adjustment elastic rod 31, and then the opening size of adjustment elastic strip 3, further increase elastic strip 3 to the effect of accomodating of the mud strip of the different diameters that the water absorption layer 27 formed of rubbing.
Example two
As shown in fig. 7 to 8, a first comparative example, in which another embodiment of the present invention is:
two sides of one end of the pull rope 15 close to the sector disc 21 are fixedly connected with foldable unfolding wings 36, and a group of elastic umbrella ribs 37 are embedded in the unfolding wings 36; through stay cord 15 by wind-up roll 16 draw forth back exhibition wing 36 expand under rib 37's drive, and then form the wind-break wall, it is blown away by the crosswind when reducing smog through the space between ring 13 and the casing 1, simultaneously because exhibition wing 36 sets up the one end that is close to sector disc 21 at stay cord 15, it does not have exhibition wing 36 to be close to casing 1 position when making stay cord 15 release completely, and then reduce the blockking of the smog that other positions in warehouse top are derived, further increase probe 11's sensing area.
The outer edge of each unfolding wing 36 is provided with a flexible magnetic strip 38, and the magnetic strips 38 fixedly connected to the unfolding wings 36 between the adjacent pull ropes 15 attract each other; through the mutual attraction of the magnetic strips 22, the sealing performance of a cylinder formed by surrounding the unfolded spreading wings 36 is further improved, the escape of smoke flying out of the circular ring 13 is further reduced, and the response speed of the alarm device is increased.
When the smoke collecting and guiding device works, smoke is collected and guided through the guide cover 14, the efficiency of smoke entering the shell 1 is increased, the sensing sensitivity of the probe 11 to smoke in a small range is further increased, early warning is further given out in time at the early stage of a fire, the extinguishing efficiency of the fire is increased, and loss is reduced; the winding roller 16 rotates and releases the pull rope 15, so that the pull rope 15 drives the circular ring 13 and the drainage cover 14 to fall to the top of a goods shelf in the warehouse, smoke generated when goods on the goods shelf catch fire is collected by the drainage cover 14, the smoke is reduced by being blown away to reduce the concentration, the smoke is spirally lifted by the circular ring 13 after being collected by the drainage cover 14 and enters the shell 1 through the ventilation hole 12, the response speed of the alarm device is increased, and the fire extinguishing efficiency is improved; when the pulling rope 15 is wound and pulled by the winding roller 16, the pulling rope 15 drives the circular ring 13 to rise and abut against the bottom of the shell 1, meanwhile, the brush rod 17 at the top of the circular ring 13 penetrates through the vent hole 12 and is inserted into the shell 1, and the brush bristles 18 are matched to clean dust deposited in the shell 1, so that false alarm of the probe 11 caused by blowing the dust deposited in the shell 1 by strong wind is reduced; after the drainage cover 14 is pulled upwards through the pull rope 15, the circular ring 13 abuts against the bottom of the shell 1, then the pull rope 15 continues to rise, so that the pull rope 15 drives the fan-shaped disc 21 to be wound and extruded, compressed air generated in the wedge-shaped cavity 24 is filled into the first hole 25 through the second hole 26, the brush rod 17 extending into the shell 1 is expanded, the kneading and dust removing efficiency of the expanded brush rod 17 on the inner wall of the shell 1 is further improved, meanwhile, the expanded brush rod 17 enlarges the cleaning coverage range of the brush bristles 18, and the influence of dust in the shell 1 on the sensitivity and stability of the alarm device is further reduced; in the process that the circular ring 13 is close to and tightly abuts against the bottom of the shell 1, the elastic cover 28 is extruded and deformed, so that the sponge inside the elastic cover is pressed to extrude absolute ethyl alcohol, the absolute ethyl alcohol overflows through a gap between the elastic cover 28 and the brush rod 17, and then the absolute ethyl alcohol continuously spreads in the water absorbing layer 27 to wet the water absorbing layer 27, so that the wiping and capturing efficiency of the water absorbing layer 27 on dry dust is further improved, the dust emission is reduced, and the false alarm caused by the dust emission when the inner wall of the shell 1 is cleaned is reduced; the diameter of one end of the brush rod 17, which is far away from the disc, is gradually increased, so that the end part of the brush rod 17 is inserted into the shell 1 and then expanded and converged, the height of the expanded end part of the brush rod 17 is increased after the end part is mutually extruded and is in contact with the probe 11, the wiping and cleaning effect of the water absorption layer 27 on the brush rod 17 on the probe 11 is increased, the normal operation of the alarm device is further ensured, and the vibration, rubbing and dust removal efficiency of the brush rod 17 is increased when the steel ball 29 rolls; when the brush rod 17 is inserted into the ventilation hole 12, the brush bristles 18 continuously bend and rebound along with the brush rod 17 when passing through the ventilation hole 12, so that the roots of the brush bristles 18 continuously swing to further drive the elastic rod 31 to continuously stretch and retract, the reciprocating motion of the elastic rod 31 drives the limiting ball 32 to continuously penetrate through the elastic strip 3, and when the limiting ball 32 extrudes and scratches a through hole formed in the elastic strip 3, the limiting ball 32 drives the elastic strip 3 to continuously open and close and creep, so that the elastic strip 3 wraps and stores part of dust, and the escape of the dust in the shell 1 is further reduced; through the position of adjusting snap ring 35 apart from brush-holder stud 17, the reciprocating motion distance of adjustment elastic rod 31, and then the opening size of adjustment elastic strip 3, further increase elastic strip 3 to the effect of accomodating of the mud strip of the different diameters that the water absorption layer 27 formed of rubbing.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a large-scale warehouse is with dustproof smog alarm device which characterized in that: comprises a shell (1) and a probe (11) arranged in the shell (1); a group of vent holes (12) communicated with the probe (11) are uniformly distributed on the circumference of the bottom of the shell (1); the bottom of the shell (1) is provided with a circular ring (13), and the bottom of the circular ring (13) is fixedly connected with an umbrella-shaped drainage cover (14).
2. The dust and smoke alarm apparatus for large warehouses of claim 1, wherein: a group of pull ropes (15) are uniformly distributed on the circumference of the bottom of the drainage cover (14), one end of each pull rope (15) is connected with the drainage cover (14), and the other end of each pull rope (15) penetrates through the shell (1) and extends into the shell (1); a winding roller (16) is rotatably connected to the position, corresponding to the pull rope (15), in the shell (1), and the winding roller (16) is driven to rotate by an electric motor; the end part of the pull rope (15) is wound on the winding roller (16).
3. The dust and smoke alarm apparatus for large warehouses of claim 2, wherein: a group of brush rods (17) are uniformly distributed on the top of the circular ring (13) at the circumference corresponding to the ventilation holes (12), and a group of bristles (18) are uniformly distributed on the periphery of each brush rod (17); the top end of the brush rod (17) is bent towards the direction close to the axis of the circular ring (13).
4. The dust and smoke alarm apparatus for large scale warehouse of claim 3, wherein: the drainage cover (14) comprises a group of fixing plates (2) which are uniformly distributed at intervals on the circumference, a flexible fan-shaped disc (21) is arranged between every two adjacent fixing plates (2), the top of the fan-shaped disc (21) is fixedly connected with a circular ring (13), and iron powder is embedded in the fan-shaped disc (21); the two sides of the sector disc (21) are in staggered lap joint with the fixed plate (2); magnetic strips (22) are fixedly connected with the two sides of the fixed plate (2) at positions corresponding to the fan-shaped disc (21); the bottom end of the pull rope (15) rounds the lower edge of the sector disc (21) and is fixedly connected with the inner periphery of the sector disc (21) close to the position of the circular ring (13); a wedge-shaped cavity (24) is formed in the sector disc (21), the brush rod (17) is elastic, a first hole (25) is formed in the brush rod (17) in an opening and closing mode, and the first hole (25) is communicated with the wedge-shaped cavity (24) through a second hole (26) formed in the circular ring (13).
5. The dust and smoke alarm apparatus for large scale warehouse of claim 4, wherein: the periphery of the brush rod (17) is sleeved with a contractible elastic water absorption layer (27), and the bristles (18) penetrate through the water absorption layer (27) and are fixedly connected with the brush rod (17); an elastic cover (28) is sleeved at the position, close to the root part, of the brush rod (17), and the lower edge of the elastic cover (28) is in sealing connection with the end face of the circular ring (13); the brush rod (17) penetrates through the elastic cover (28) and is connected with the elastic cover (28) in a sliding manner; the elastic cover (28) is filled with sponge, and the sponge is soaked with absolute ethyl alcohol.
6. The dust and smoke alarm apparatus for large scale warehouse of claim 5, wherein: the diameter of one end, far away from the disc, of the brush rod (17) is gradually increased, and the wall thickness of the first hole (25) is uniform; a group of steel balls (29) are filled in the first hole (25), an arc-shaped groove is formed in the side face of each steel ball (29), and the diameter of each steel ball (29) is between the maximum diameter and the minimum diameter of the first hole (25).
7. The dust and smoke alarm apparatus for large scale warehouse of claim 5, wherein: the water absorbing layer (27) is fixedly connected with an annular elastic strip (3) close to the bristles (18), one side of the elastic strip (3) far away from the water absorbing layer (27) is provided with opening bristles (18) which are fixedly connected with an arc-shaped elastic rod (31), and the end part of the elastic rod (31) penetrates through the elastic strip (3) and extends to the inner periphery of the elastic strip (3); a group of limiting balls (32) are uniformly distributed at the position, close to the free end, of the elastic rod (31), and the diameter of the limiting ball (32) at the end part of the elastic rod (31) is larger than that of other limiting balls (32).
8. The dust and smoke alarm apparatus for large scale warehouse of claim 7, wherein: the brush bristles (18) are sleeved with a slip ring (33), and the slip ring (33) is in sliding connection with the brush bristles (18); a through groove (34) is formed in the side face of the slip ring (33), an elastic clamping ring (35) with an opening is arranged in the through groove (34), and the clamping ring (35) is embedded into the through groove (34) and encircles the bristles (18).
9. The dust and smoke alarm apparatus for large warehouses of claim 2, wherein: folding exhibition wings (36) are fixedly connected to two sides of one end, close to the fan-shaped disc (21), of the pull rope (15), and a group of elastic umbrella ribs (37) are embedded in the exhibition wings (36).
10. The dust and smoke alarm apparatus for large scale warehouse of claim 9, wherein: the outer edge of each unfolding wing (36) is provided with a flexible magnetic strip (38), and the magnetic strips (38) fixedly connected on the unfolding wings (36) between the adjacent pull ropes (15) attract each other.
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| CN202210086887.5A CN114419833B (en) | 2022-01-25 | 2022-01-25 | Dustproof smoke alarm equipment for large warehouse |
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| CN202210086887.5A CN114419833B (en) | 2022-01-25 | 2022-01-25 | Dustproof smoke alarm equipment for large warehouse |
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Cited By (1)
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| CN117894132A (en) * | 2023-12-22 | 2024-04-16 | 南方电网通用航空服务有限公司 | An anti-interference smoke sensor for substation |
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| CN114419833B (en) | 2024-06-28 |
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