CN212750041U - Building site fire alarm device - Google Patents
Building site fire alarm device Download PDFInfo
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- CN212750041U CN212750041U CN202021363919.4U CN202021363919U CN212750041U CN 212750041 U CN212750041 U CN 212750041U CN 202021363919 U CN202021363919 U CN 202021363919U CN 212750041 U CN212750041 U CN 212750041U
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- connecting column
- door body
- adhesive tape
- accommodating cavity
- melt adhesive
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Abstract
The utility model relates to a building site fire-proof alarm device, which comprises a fixed bracket, wherein a fixed box body is arranged on the fixed bracket; the lower side of the fixed box body is provided with an accommodating cavity; a connecting column is arranged between the fixed box body and the accommodating cavity; the outer side of the connecting column is wound with a hot melt adhesive tape; the surface of the accommodating cavity is provided with a limiting boss which is abutted against the hot-melt adhesive tape; the upper part of the connecting column is connected with the fixed box body through an elastic piece; an air inlet is arranged at the lower side of the accommodating cavity; a door body assembly is arranged at the air inlet; the door body assembly is in contact connection with the bottom end of the connecting column; and a smoke sensor is arranged in the accommodating cavity. The utility model discloses in realize the response to ambient temperature through hot melt adhesive tape, if the temperature surpassed the adhesive tape melting point, the adhesive tape melted for the spliced pole position changes. The spliced pole position changes and to make the air inlet open to make outside air and smog get into, if smog concentration reaches fire hazard index, then report to the police through the external equipment who links to each other with the sensor.
Description
Technical Field
The utility model relates to a fire alarm device, concretely relates to building site fire alarm device belongs to safety equipment technical field.
Background
A plurality of inflammable matters needed by construction such as wood and a plurality of instruments needed by construction are stored on construction sites, and when the instruments work, the inflammable matters such as wood can be ignited by high temperature and sparks to cause fire, so that a fire alarm device is needed. Current fire alarm device all adopts temperature-sensing ware and smog inductor as the main part, and mechanical failure may take place after accurate machinery such as temperature-sensing ware and smog inductor is placed for a long time to the building site is when the construction, can produce a large amount of dusts, and current fire alarm device can make the device to the response contact inefficacy of temperature when the dust falls into its inside machinery, leads to can not be timely reports to the police when the conflagration takes place, has postponed the time of conflagration discovery. Meanwhile, since the fire early warning cannot be based on the temperature as a judgment standard, if the temperature is temporarily increased in normal operation, an alarm is started, so that misinformation occurs, and construction is affected.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the defect among the prior art, providing a building site fire prevention alarm device, simple structure is reasonable, reduces the erroneous judgement rate, improves the accuracy.
The building site fire-proof alarm device comprises a fixed support, wherein a fixed box body is arranged on the fixed support; the lower side of the fixed box body is provided with an accommodating cavity; a connecting column is arranged between the fixed box body and the accommodating cavity; the outer side of the connecting column is wound with a hot melt adhesive tape; the surface of the accommodating cavity is provided with a limiting boss which is abutted against the hot-melt adhesive tape; the surface of the accommodating cavity is provided with a feed inlet; the upper part of the connecting column is connected with the fixed box body through an elastic piece; an air inlet is arranged at the lower side of the accommodating cavity; a door body assembly is arranged at the air inlet; the door body assembly is connected with the bottom end of the connecting column; and a smoke sensor is arranged in the accommodating cavity.
Preferably, the section of the hot-melt adhesive tape is rectangular; the hot-melt adhesive strips are annularly distributed on the outer side of the connecting column; the limiting boss is abutted against the upper surface of the hot melt adhesive tape.
Preferably, the hot-melt adhesive tape is made of polyethylene material; the outer side of the upper part of the connecting column is provided with a fixed convex edge; the elastic piece is connected and fixed between the convex edge and the fixed box body.
Preferably, a cross beam is arranged in the middle of the air inlet; the door body assembly comprises a first door body and a second door body; and the lower end of the connecting column is provided with a contact block.
Preferably, the first door body and the second door body are respectively hinged on the cross beam; a through hole is formed in the beam; the contact block moves in the through hole.
Preferably, one side of the first door body opposite to the second door body extends into the through hole and is in contact connection with the contact block.
Preferably, the storage box is arranged in the accommodating box.
Preferably, the material storage phase is annularly distributed on the outer side of the connecting column; the holding cavity surface is provided with a plurality of feeding through holes relative to the storage phase.
The utility model discloses in realize the response to ambient temperature through hot melt adhesive tape, if the temperature surpassed the adhesive tape melting point, the adhesive tape melted for the spliced pole position changes. The spliced pole position changes and to make the air inlet open to make outside air and smog get into, if smog concentration reaches fire hazard index, then report to the police through the external equipment who links to each other with the sensor.
Drawings
Fig. 1 is a schematic structural view of the cross section of the present invention.
Fig. 2 is an enlarged view of part a.
In the figure, 1 is a fixed support, 2 is a fixed box body, 3 is an accommodating cavity, 3.1 is a second through hole, 4 is a connecting column, 4.1 is a fixed convex edge, 4.2 is a contact block, 5 is a hot-melt adhesive tape, 6 is a limiting boss, 7 is an elastic part, 8 is an air inlet, 8.1 is a cross beam, 8.1.1 is a first through hole, 9 is a first door body, 10 is a second door body, and 11 is a material storage box.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Terms used herein, including technical and scientific terms, have the same meaning as terms commonly understood by one of ordinary skill in the art, unless otherwise defined. It will be understood that terms defined in commonly used dictionaries have meanings that are consistent with their meanings in the prior art.
Referring to fig. 1-2, the fire-proof alarm device for a construction site comprises a fixed support 1, wherein a fixed box body 2 is arranged on the fixed support 1; the lower side of the fixed box body 2 is provided with an accommodating cavity 3; a connecting column 4 is arranged between the fixed box body and the accommodating cavity; the outer side of the connecting column 4 is wound with a hot melt adhesive tape 5; the surface of the accommodating cavity 3 is provided with a limit boss 6 which is abutted against the hot melt adhesive tape; the upper part of the connecting column 4 is connected with the fixed box body 2 through an elastic piece 7; an air inlet 8 is arranged at the lower side of the accommodating cavity 3; a door body assembly is arranged at the air inlet; the door body assembly is in contact connection with the bottom end of the connecting column; and a smoke sensor is arranged in the accommodating cavity.
In this embodiment, the smoke sensor is arranged in the accommodating cavity, so that the influence of external impurities, dust and the like on the sensitivity of the sensor is avoided. It is preferable that the fixing bracket 1 is installed on a wall, a ceiling, or an object having a certain height.
Further, the cross section of the hot melt adhesive strip 5 is rectangular; the hot-melt adhesive strips 5 are annularly distributed on the outer side of the connecting column 4; the limiting boss 6 is abutted against the upper surface of the hot melt adhesive tape.
In the embodiment, the melting temperature of the hot melt adhesive strip 5 is 160-180 degrees, which is equivalent to the ambient temperature of a common fire, and the temperature of the materials in the construction site is higher after the fire occurs, so that the rise of the ambient temperature can be sensitively sensed by using the hot melt adhesive strip.
Furthermore, the hot-melt adhesive tape is made of polyethylene material; the outer side of the upper part of the connecting column 4 is provided with a fixed convex edge 4.1; the elastic piece is connected between the fixed convex edge and the fixed box body.
Further, a cross beam 8.1 is arranged in the middle of the air inlet 8; the door body assembly comprises a first door body 9 and a second door body 10; the lower end of the connecting column 4 is provided with a contact block 4.2.
Further, the first door body 9 and the second door body 10 are respectively hinged on the cross beam 8.1; a first through hole 8.1.1 is formed in the beam; the contact block moves in the through hole 8.1.1.
Furthermore, one side of the first door body, which is opposite to the second door body, extends into the through hole and is in contact connection with the contact block.
Further, a material storage box 11 is arranged in the accommodating box.
Furthermore, the material storage boxes 11 are annularly distributed on the outer side of the connecting column; the surface of the containing cavity is provided with a plurality of feeding second through holes 3.1 corresponding to the material storage box.
The working principle is as follows: once a fire occurs, the environmental temperature rises to the melting point of the hot-melt adhesive tape, and then the hot-melt adhesive tape can be melted into a liquid state, at the moment, due to the change of the state of the adhesive tape, the support at the bottom of the connecting column disappears, the connecting column can move downwards by the aid of the elastic piece and the gravity of the connecting column, the contact block can stretch into the through hole 8.1.1 of the cross beam, the contact block is in contact with the inner sides of the first door body and the second door body 10, the outer sides of the first door body and the second door body are tilted upwards, smoke enters the accommodating cavity, and the smoke sensor judges whether the smoke reaches the fire standard or not, and if the smoke reaches the fire standard; if not, the alarm is stopped. The fire condition is measured by double standards of temperature and smoke. The misjudgment caused by single temperature is avoided, and the reduction of sensitivity caused by long-term exposure of the temperature sensor and the smoke sensor is also avoided.
Finally, it is noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a building site fire prevention alarm device, includes fixed bolster (1), its characterized in that: a fixed box body (2) is arranged on the fixed support (1); the lower side of the fixed box body (2) is provided with an accommodating cavity (3); a connecting column (4) is arranged between the fixed box body and the accommodating cavity; the outer side of the connecting column (4) is wound with a hot melt adhesive tape (5); the surface of the accommodating cavity (3) is provided with a limit boss (6) which is abutted against the hot melt adhesive tape; the upper part of the connecting column (4) is connected with the fixed box body (2) through an elastic piece (7); an air inlet (8) is arranged at the lower side of the accommodating cavity (3); a door body assembly is arranged at the air inlet; the door body assembly is in contact connection with the bottom end of the connecting column; and a smoke sensor is arranged in the accommodating cavity.
2. A site fire alarm apparatus according to claim 1, wherein: the section of the hot-melt adhesive tape (5) is rectangular; the hot-melt adhesive strips (5) are annularly distributed on the outer side of the connecting column (4); the limiting boss (6) is abutted against the upper surface of the hot melt adhesive tape.
3. A site fire alarm apparatus according to claim 2, wherein: the hot-melt adhesive tape is made of polyethylene material; a fixed convex edge (4.1) is arranged on the outer side of the upper part of the connecting column (4); the elastic piece is connected between the fixed convex edge and the fixed box body.
4. A site fire alarm apparatus according to claim 1, wherein: a cross beam (8.1) is arranged in the middle of the air inlet (8); the door body assembly comprises a first door body (9) and a second door body (10); the lower end of the connecting column (4) is provided with a contact block (4.2).
5. A site fire alarm apparatus according to claim 4, wherein: the first door body (9) and the second door body (10) are respectively hinged on the cross beam (8.1); a first through hole (8.1.1) is formed in the beam; the contact block moves in the first through hole (8.1.1).
6. A site fire alarm apparatus according to claim 5, wherein: and one side of the first door body, which is opposite to the second door body, extends into the through hole and is in contact connection with the contact block.
7. A site fire alarm apparatus according to claim 1, wherein: the containing cavity is internally provided with a storage box (11).
8. A site fire alarm apparatus according to claim 7, wherein: the material storage boxes (11) are annularly distributed on the outer side of the connecting column; the surface of the containing cavity is provided with a plurality of feeding second through holes (3.1) corresponding to the material storage box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021363919.4U CN212750041U (en) | 2020-07-13 | 2020-07-13 | Building site fire alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021363919.4U CN212750041U (en) | 2020-07-13 | 2020-07-13 | Building site fire alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212750041U true CN212750041U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021363919.4U Active CN212750041U (en) | 2020-07-13 | 2020-07-13 | Building site fire alarm device |
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| Country | Link |
|---|---|
| CN (1) | CN212750041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060090A (en) * | 2021-10-29 | 2022-02-18 | 黑龙江科技大学 | Spontaneous combustion fire early warning sensor in coal mine goaf |
| CN116631139A (en) * | 2023-05-30 | 2023-08-22 | 营口天成消防设备有限公司 | Fire control is with wireless smoke detection formula fire detection alarm device that feels |
-
2020
- 2020-07-13 CN CN202021363919.4U patent/CN212750041U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060090A (en) * | 2021-10-29 | 2022-02-18 | 黑龙江科技大学 | Spontaneous combustion fire early warning sensor in coal mine goaf |
| CN116631139A (en) * | 2023-05-30 | 2023-08-22 | 营口天成消防设备有限公司 | Fire control is with wireless smoke detection formula fire detection alarm device that feels |
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