CN220542591U

CN220542591U - Front filtering structure of air suction type smoke detector

Info

Publication number: CN220542591U
Application number: CN202322112878.1U
Authority: CN
Inventors: 韩冲; 刘将; 张建
Original assignee: Inner Mongolia Anyi Construction Engineering Co ltd
Current assignee: Inner Mongolia Anyi Construction Engineering Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-02-27
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a front filtering structure of an air suction type smoke detector, which comprises a detector body and an air inlet, wherein the air inlet is fixedly connected to the right side above the detector body, a first pipeline is fixedly connected to the upper side of the air inlet, a box body is fixedly connected to the outer wall of the left side of the first pipeline, the lower side of the box body is fixedly connected with the detector body, a filtering device is arranged in the box body, and a connecting device is arranged on the left side of the filtering device. Can start the fan, make the fan inhale the flue gas in with external air through the gas collecting hopper, rethread third pipeline and second pipeline are with the even row of flue gas in the box, and the flue gas can carry out the filtration impurity through the filter screen like this, can intercept the dust in the flue gas through the cotton layer of filtration, later accomplish filterable flue gas will enter into the detector originally internally through first pipeline and air inlet, carries out gas detection to just guaranteed the detection precision of detector body.

Description

Front filtering structure of air suction type smoke detector

Technical field:

the utility model relates to the technical field of filtration of an air suction type smoke detector, in particular to a front filtration structure of an air suction type smoke detector.

The background technology is as follows:

the air suction type smoke detector is used for early warning of fire by sucking air in a protection area into the detector through a sampling tube, and the air suction type smoke detector is complex in use environment and is commonly used in various production workshops, so that various unexpected impurities are mixed in the sucked air, and a pre-filtering structure is needed.

An inhalation smoke detector front filter structure, such as the grant publication number CN219065041U, includes a detector body. Can get into the suction pump before the flue gas just filters some great impurity, prevent that the suction pump from plugging up in the use, made things convenient for product maintenance, filtration before the suction smoke detector in the aforesaid is in the filter, install filter screen and filter bag and filter, but because the filter bag uses soft plastics or rubber material, only can intercept impurity or winged insect in the air like this, but can't block the tiny particle dust in the air, thereby after a period of use, the detector body inhales more dust, just can influence the precision that its was surveyed, the filter screen is in forefront in the aforesaid simultaneously, consequently, pile up impurity relatively easily, so need frequent dismantlement change to the filter screen, thereby the result of use is not good.

The utility model comprises the following steps:

the utility model aims to provide a front filtering structure of an air suction type smoke detector, which is used for solving the problems that impurities or flying insects in air can be intercepted, small particle dust in the air can not be blocked, and a filter screen is required to be frequently detached and replaced in the above-mentioned comparison patent.

The utility model is implemented by the following technical scheme: the utility model provides a filtration before suction type smoke detector, includes detector body and air inlet, the top right side rigid coupling of detector body has the air inlet, the top rigid coupling of air inlet has first pipeline, the left side outer wall rigid coupling of first pipeline has the box, and the below and the detector body looks rigid coupling of box, the internally mounted of box has filter equipment, connecting device is installed in filter equipment's left side.

The filter device comprises a filter screen, the outer wall of filter screen is fixedly connected with the inner wall of box mutually, the laminating of right side of filter screen has the cotton layer of filtration, and the outer wall on cotton layer of filtration is laminated with the inner wall of box mutually, the left side of filter screen is equipped with a plurality of diaphragms, and the outer wall of diaphragm is fixedly connected with the inner wall of box mutually, upper and lower the inboard rigid coupling of diaphragm has the second pipeline, the preceding terminal surface and the left side of second pipeline are equipped with boxboard and fan respectively, and the boxboard links to each other with the box screw thread through a plurality of bolts, the frame and the box rigid coupling of fan.

The air outlet of the fan is fixedly connected with a third pipeline, and the third pipeline penetrates through the box body and is communicated with the second pipeline.

And an air inlet of the fan is fixedly connected with an air collecting hopper.

The connecting device comprises a first screw rod, the upper and lower side outer wall of the first screw rod rotates with the box through a bearing and is connected, a hairbrush plate is connected to the upper side outer wall of the first screw rod through threads, the right side of the hairbrush plate is attached to the outer wall of the filter screen, a vertical rod is mounted in the left side of the hairbrush plate, the outer wall of the vertical rod is in clearance fit with the inner wall of a through hole of the hairbrush plate, the upper and lower side outer wall of the vertical rod is fixedly connected with the inner wall of the box, a drain pipe is arranged below the left side of the vertical rod, and the outer wall of the drain pipe is fixedly connected with the inner wall of the box.

The upper surface of the first screw rod is fixedly connected with a rotary table.

The utility model has the advantages that:

1. according to the utility model, the fan can be started, so that the fan sucks the smoke in the external air through the air collecting hopper, and the smoke is uniformly discharged into the box body through the third pipeline and the second pipeline, so that the smoke can be filtered and mixed through the filter screen, dust in the smoke can be intercepted through the filter cotton layer, and the filtered smoke enters the detector body through the first pipeline and the air inlet for gas detection, so that the detection precision of the detector body is ensured;

2. after the device is used for a period of time, the rotary table can be rotated, the first screw rod is driven to rotate through the rotary table, the first screw rod is matched with the vertical rod to drive the brush plate to move, so that impurities accumulated on the filter screen can be scraped through the brush plate, and then the impurities can be discharged through the drain pipe, so that frequent disassembly and replacement work is not needed, and the use effect is better.

Description of the drawings:

in order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a plan cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the structure of the drain pipe, cross plate and second conduit of FIG. 2;

FIG. 4 is a schematic view of the structure of the vertical rod, the first screw and the turntable in FIG. 2;

fig. 5 is a schematic view of the structure of the second screw, the stopper and the swivel in fig. 2.

In the figure: 1. the detector comprises a detector body, 2, an air inlet, 3, a filtering device, 301, a filter screen, 302, a filter cotton layer, 303, a transverse plate, 304, a second pipeline, 305, a box plate, 306, a fan, 3A1, a second screw, 3A2, a stop block, 3A3, a rotating head, 4, a connecting device, 401, a first screw, 402, a brush plate, 403, a vertical rod, 404, a blow-off pipe, 5, a first pipeline, 6, a box, 7, a third pipeline, 8, a gas collecting hopper, 9 and a rotating disc.

The specific embodiment is as follows:

the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1-5, in this embodiment, a front filtering structure of an air suction type smoke detector includes a detector body 1 and an air inlet 2, the detector body 1 is an air suction type smoke detector, the model of the air suction type smoke detector can be selected according to the requirement of a user, the air inlet 2 is fixedly connected to the right side of the upper part of the detector body 1, a first pipeline 5 is fixedly connected to the upper part of the air inlet 2, a box 6 is fixedly connected to the left outer wall of the first pipeline 5, the lower part of the box 6 is fixedly connected with the detector body 1, a filtering device 3 is installed in the box 6, and a connecting device 4 is installed on the left side of the filtering device 3.

Referring to fig. 1, 2, 3 and 5, the filtering device 3 includes a filtering net 301, a filtering cotton layer 302, a cross plate 303, a second pipeline 304, a box plate 305 and a fan 306, wherein the outer wall of the filtering net 301 is fixedly connected with the inner wall of the box 6, the filtering cotton layer 302 is attached to the right side of the filtering net 301, dust in the air can be filtered through the filtering cotton layer 302, the outer wall of the filtering cotton layer 302 is attached to the inner wall of the box 6, 2 cross plates 303 are arranged on the left side of the filtering net 301, the outer wall of the cross plate 303 is fixedly connected with the inner wall of the box 6, the inner sides of the upper and lower cross plates 303 are fixedly connected with the second pipeline 304, a plurality of openings are formed on the right side of the second pipeline 304, the front end face and the left side of the second pipeline 304 are respectively provided with the box plate 305 and the fan 306, the model of the fan 306 can be selected according to the requirements of a user, the box 305 is fixedly connected with the box 6 through 4 bolts, the base of the fan 306 is fixedly connected with the box 6, the air outlet of the fan 306 is fixedly connected with a third pipeline 7, the third pipeline 7 passes through the box 6 and is fixedly connected with the air inlet of the second pipeline 306, and the air inlet of the fan 8 is fixedly connected with the air inlet of the fan 306;

can switch on the external power supply of fan 306, start fan 306, make fan 306 inhale the flue gas in the external air through gas collecting hopper 8, rethread third pipeline 7 and second pipeline 304 are with the even discharge of flue gas to box 6 in, the flue gas can carry out the filtration impurity filtration through filter screen 301 like this, can intercept the dust in the flue gas through filter cotton layer 302, later accomplish filterable flue gas will enter into in the detector body 1 through first pipeline 5 and air inlet 2, carry out gas detection, thereby just guaranteed the detection precision of detector body 1.

Referring to fig. 1-4, the connecting device 4 comprises a first screw 401, a brush plate 402, a vertical rod 403 and a drain pipe 404, wherein the upper outer wall and the lower outer wall of the first screw 401 are rotationally connected with the box 6 through bearings, the brush plate 402 is in threaded connection with the upper outer wall of the first screw 401, a through hole is formed in the brush plate 402, the right side of the brush plate 402 is attached to the outer wall of the filter screen 301, the vertical rod 403 is arranged in the left side of the brush plate 402, the outer wall of the vertical rod 403 is in clearance fit with the inner wall of the through hole of the brush plate 402, the limit effect on the brush plate 402 can be achieved through the vertical rod 403, the drain pipe 404 is arranged below the left side of the vertical rod 403, a valve is arranged on the drain pipe 404, the outer wall of the drain pipe 404 is fixedly connected with the inner wall of the box 6, and the turntable 9 is fixedly connected with the upper surface of the first screw 401;

after the device is used for a period of time, the rotary table 9 can be rotated, the first screw rod 401 is driven to rotate through the rotary table 9, the first screw rod 401 is matched with the vertical rod 403 to drive the brush plate 402 to move, so that impurities accumulated on the filter screen 301 can be scraped through the brush plate 402, and then the impurities can be discharged through the drain pipe 404, so that frequent disassembly and replacement work is not needed, and the use effect is better.

In this embodiment, when an operator needs to use the front filtering structure of the air suction type smoke detector, firstly, the operator can switch on an external power supply of the fan 306, start the fan 306, enable the fan 306 to suck the smoke in the external air through the air collecting hopper 8, and then uniformly discharge the smoke into the box 6 through the third pipeline 7 and the second pipeline 304, so that the smoke can be filtered and decontaminated through the filter screen 301, dust in the smoke can be intercepted through the filter cotton layer 302, and then the filtered smoke enters the detector body 1 through the first pipeline 5 and the air inlet 2 for gas detection, thereby ensuring the detection precision of the detector body 1;

Example 2:

referring to fig. 1-5, in this embodiment, the present utility model provides a technical solution: the filtering device 3 can further comprise a second screw rod 3A1, a stop block 3A2 and a rotary head 3A3, wherein the middle outer wall of the upper and lower second screw rods 3A1 is connected with the internal screw thread of the box body 6, the left side of the second screw rod 3A1 is rotationally connected with the stop block 3A2, the left side outer wall of the stop block 3A2 is attached to the outer wall of the filter cotton layer 302, and the rotary head 3A3 is fixedly connected to the right side of the second screw rod 3A 1;

after the filter cotton layer 302 is installed in the box 6, the rotary head 3A3 can be rotated, the second screw rod 3A1 is driven to rotate through the rotary head 3A3, the second screw rod 3A1 can drive the stop block 3A2 to move through the box 6, and the stop block 3A2 is matched with the filter screen 301 to fix the filter cotton layer 302 in a propped mode, so that stability of the filter cotton layer is guaranteed.

In this embodiment, when the operator needs to use the front filtering structure of the air suction type smoke detector, after the filter cotton layer 302 is installed in the box 6, the rotating head 3A3 can be rotated, the second screw 3A1 is driven to rotate by the rotating head 3A3, the second screw 3A1 can drive the stop block 3A2 to move through the box 6, and thus the stop block 3A2 can be matched with the filter screen 301 to fix the filter cotton layer 302 in a propped manner, so that the stability of the filter cotton layer is ensured.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a filtration before suction type smoke detector, includes detector body (1) and air inlet (2), the top right side rigid coupling of detector body (1) has air inlet (2), its characterized in that: the air inlet device is characterized in that a first pipeline (5) is fixedly connected above the air inlet (2), a box body (6) is fixedly connected to the outer wall of the left side of the first pipeline (5), the lower portion of the box body (6) is fixedly connected with the detector body (1), a filter device (3) is mounted in the box body (6), and a connecting device (4) is mounted on the left side of the filter device (3).

2. The front filter structure of an aspirated smoke detector according to claim 1, wherein: the filter device (3) comprises a filter screen (301), the outer wall of the filter screen (301) is fixedly connected with the inner wall of a box body (6), a filter cotton layer (302) is attached to the right side of the filter screen (301), the outer wall of the filter cotton layer (302) is attached to the inner wall of the box body (6), a plurality of transverse plates (303) are arranged on the left side of the filter screen (301), the outer wall of each transverse plate (303) is fixedly connected with the inner wall of the box body (6), a second pipeline (304) is fixedly connected to the inner side of each transverse plate (303), a box plate (305) and a fan (306) are respectively arranged on the front end face and the left side of each second pipeline (304), the box plates (305) are connected with the box body (6) through a plurality of bolts in a threaded mode, and a machine base of the fan (306) is fixedly connected with the box body (6).

3. The front filter structure of an aspirated smoke detector according to claim 2, wherein: the air outlet of the fan (306) is fixedly connected with a third pipeline (7), and the third pipeline (7) penetrates through the box body (6) and is communicated with the second pipeline (304).

4. The front filter structure of an aspirated smoke detector according to claim 2, wherein: an air inlet of the fan (306) is fixedly connected with an air collecting hopper (8).

5. The front filter structure of an aspirated smoke detector according to claim 1, wherein: connecting device (4) are including first screw rod (401), the upper and lower side outer wall of first screw rod (401) rotates with box (6) through the bearing and links to each other, the top outer wall threaded connection of first screw rod (401) has brush board (402), and the right side of brush board (402) is laminated with the outer wall of filter screen (301) mutually, the left side internally mounted of brush board (402) has montant (403), and the through-hole department inner wall clearance fit of montant (403) outer wall and brush board (402), the upper and lower side outer wall of montant (403) is linked together with the inner wall of box (6), the left side below of montant (403) is equipped with blow off pipe (404), and the outer wall of blow off pipe (404) is linked together with the inside of box (6).

6. The front filter structure of an aspirated smoke detector of claim 5, wherein: the upper surface of the first screw rod (401) is fixedly connected with a rotary table (9).