CN214151908U - Explosion-proof type power failure alarm - Google Patents
Explosion-proof type power failure alarm Download PDFInfo
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- CN214151908U CN214151908U CN202022708952.2U CN202022708952U CN214151908U CN 214151908 U CN214151908 U CN 214151908U CN 202022708952 U CN202022708952 U CN 202022708952U CN 214151908 U CN214151908 U CN 214151908U
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Abstract
The utility model relates to an explosion-proof power failure alarm, which comprises a host, an explosion-proof shell, an explosion-proof seat, a plurality of bolt pairs, a plurality of high-pressure sealing rings, a plurality of explosion-proof cables, an explosion-proof plug, an explosion-proof socket, an explosion-proof signal lamp and an explosion-proof buzzer, wherein the main body containing a main circuit module is completely arranged in an airtight cavity formed by the explosion-proof shell, the explosion-proof seat and the high-pressure sealing rings, the local high temperature and static electricity triggered by the circuit module are isolated in the explosion-proof shell under the filling of inert gas, and simultaneously, the plug socket, the audible and visual alarm and the cable which are only left outside the explosion-proof shell all accord with the explosion-proof specification, so that the whole device can ensure that all components are completely isolated from the external combustible gas while implementing the normal sound and light alarm functions, thereby preventing the occurrence of explosion accidents, compared with the prior art, the utility model effectively improves the applicability of the power failure alarm to the fire-proof and explosion-proof places, meanwhile, the structure is simple, the manufacture is easy, the advantages of safety, reliability, convenient operation, economy and practicality are achieved, and the technology is a novel technology worth popularizing.
Description
Technical Field
The utility model belongs to the technical field of security protection equipment, concretely relates to explosion-proof type power failure alarm.
Background
The power failure alarm is one of important apparatuses in security protection operation equipment, is in the state of normal power supply at the commercial power, and the alarm is in the monitoring mode, and when the commercial power has a power failure, the alarm sends alarm signal through the mode of signal lamp scintillation, buzzer broadcast immediately, reminds personnel in the field to pay attention to in time take emergency measures. However, the sound and light alarm signals and the switch trigger circuit of the traditional power failure alarm are easy to generate local high temperature or static electricity, and surrounding combustible gas is easy to ignite in the occasions of mine operation, oil field exploration, chemical production, gas station operation and the like, so that explosive accidents are caused; the dependence of the places on power consumption is large, and if a power failure alarm device is cancelled, once a power failure accident happens, the alarm cannot be fed back in time and remedial measures are taken, so that serious economic loss is caused. Therefore, for the application in dangerous places, the defect of insufficient explosion-proof performance of the existing power failure alarm can urgently await a new feasible scheme for implementation and improvement.
SUMMERY OF THE UTILITY MODEL
To the not enough among the above-mentioned prior art, the utility model provides an explosion-proof type power failure alarm for implement safe and reliable's outage alarm work to the higher place of explosion-proof requirement.
The utility model discloses a following technical scheme implements: an explosion-proof power failure alarm comprises a host, an explosion-proof shell, an explosion-proof seat, a plurality of bolt pairs, a plurality of high-pressure sealing rings, a plurality of explosion-proof cables, an explosion-proof plug, an explosion-proof socket, an explosion-proof signal lamp and an explosion-proof buzzer. The host machine is provided with a circuit module and a power supply battery which have the functions of monitoring power signals and triggering switch signals, and is arranged in the explosion-proof shell, the explosion-proof shell is of a hollow container structure, one end of the explosion-proof shell is provided with an opening flange, the explosion-proof seat is fixedly attached to the end face of the opening flange of the explosion-proof shell through the bolt fastening connection of the bolt pair, and the attachment position of the explosion-proof shell and the explosion-proof seat is also provided with the high-pressure sealing ring; one end of each explosion-proof cable is connected to a circuit module port in the host, the other end of each explosion-proof cable penetrates into a high-voltage sealing ring in the explosion-proof shell and penetrates out of the explosion-proof shell, the outer end of one explosion-proof cable is connected to an explosion-proof plug outside the explosion-proof shell, the contact form of the explosion-proof plug is the same as the slot form of the explosion-proof socket, and the detection end of the explosion-proof socket is connected with the power supply end of a power grid to be detected; the explosion-proof signal lamp and the explosion-proof buzzer are fixed on the outer side of the explosion-proof shell, and power supply ends of the explosion-proof signal lamp and the explosion-proof buzzer are respectively connected with the outer end heads of the two explosion-proof cables.
Furthermore, the inner wall of the explosion-proof shell is provided with a plurality of inner bosses, and the high-pressure sealing rings are all arranged in grooves of the inner bosses.
Furthermore, a bolt in the bolt pair penetrates through the explosion-proof shell and a through hole of the explosion-proof seat and is fixedly installed in a screwing mode through a nut.
Furthermore, the explosion-proof shell and the explosion-proof seat are made of aluminum alloy, and the surfaces of the explosion-proof shell and the explosion-proof seat are both subjected to plastic spraying treatment.
Furthermore, the shell of the explosion-proof plug, the explosion-proof socket, the explosion-proof signal lamp and the explosion-proof buzzer are all made of aluminum alloy, and the surfaces of the explosion-proof plug, the explosion-proof socket, the explosion-proof signal lamp and the explosion-proof buzzer are all subjected to plastic spraying treatment.
Further, the length of the grounding contact of the explosion-proof plug is larger than that of the main contact of the explosion-proof plug.
Furthermore, a transient voltage absorption device is arranged inside the explosion-proof socket.
Furthermore, the rubber material of the high-pressure sealing ring is nitrile rubber.
Furthermore, the inner diameter of the high-voltage sealing ring assembled at the explosion-proof cable is equal to 0.3-0.7 times of the outer diameter of the explosion-proof cable.
Further, the outer layer of the explosion-proof cable is made of an anti-static material.
Furthermore, the light source of the explosion-proof signal lamp belongs to an electroluminescent cold light source.
Furthermore, inert gas is filled in a closed cavity formed by the explosion-proof shell and the explosion-proof seat.
Further, inert gases are filled in the inner cavities of the shells of the explosion-proof signal lamp and the explosion-proof buzzer.
Further, the pressure of the inert gas is greater than the ambient pressure.
Further, the inert gas is nitrogen.
The utility model has the advantages that:
1. the utility model discloses a to contain the main part of main circuit module and all arrange the flame proof shell in, in the airtight cavity that flame proof seat and high-pressure seal circle formed, make the local high temperature that circuit module triggered under inert gas's the filling and completely cut off within the flame proof shell with static, only stay the plug socket outside the flame proof shell simultaneously, audible-visual annunciator and cable all accord with explosion-proof specification, make the integrated device can implement normal sound, in the time of light alarming function, ensure to realize completely isolated between its whole components and parts and the external combustible gas to prevent the emergence of explosion accident, compare in prior art, the utility model discloses effectively improved the suitability of power failure alarm to fire prevention and explosion-proof place, simple structure, easily manufacturing simultaneously, have safe and reliable, convenient operation, economical and practical's advantage, be a novel technique that value must promote.
2. The utility model discloses the explosion-proof signal lamp that uses, explosion-proof buzzer, all be filled with the inert gas that pressure is greater than ambient pressure among the inner chamber of flame proof shell and flame proof seat, thereby can effectively restrain inside combustible gas gets into the shell, and even there is a small amount of combustible component infiltration entering inner chamber, also can not take place or take place the blasting of light weight because oxygen is not enough, then utilize aluminum alloy housing and high-pressure seal ring's structure to restrict explosion range among the inner chamber, ensure that ambient gas is not lighted, utilize the characteristic of electric cold light source to ensure the low temperature state of signal lamp simultaneously, thereby can realize multiple safety protection to the explosion-proof operation of power failure alarm equipment under dangerous operating mode.
Drawings
Fig. 1 is a front view of the internal structure of the present invention;
fig. 2 is a plan view of the present invention.
In the figure: the explosion-proof device comprises a host, 2-an explosion-proof shell, 2 a-an inner boss, 3-an explosion-proof seat, 4-a bolt pair, 5-a high-pressure sealing ring, 6-an explosion-proof cable, 7-an explosion-proof plug, 8-an explosion-proof socket, 9-an explosion-proof signal lamp and 10-an explosion-proof buzzer.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples.
As shown in fig. 1-2, an explosion-proof power failure alarm comprises a host 1, an explosion-proof shell 2, an explosion-proof seat 3, a plurality of bolt pairs 4, a plurality of high-pressure seal rings 5, a plurality of explosion-proof cables 6, an explosion-proof plug 7, an explosion-proof socket 8, an explosion-proof signal lamp 9 and an explosion-proof buzzer 10. The host 1 is provided with a circuit module and a power supply battery which have functions of monitoring power signals and triggering switch signals, and is arranged inside the explosion-proof shell 2, the explosion-proof shell 2 is of a hollow container structure, one end of the explosion-proof shell is provided with an opening flange, the explosion-proof seat 3 is fixedly attached to the end face of the opening flange of the explosion-proof shell 2 through the bolt fastening of the bolt pair 4, a bolt in the bolt pair 4 penetrates through holes of the explosion-proof shell 2 and the explosion-proof seat 3 and is fixedly installed through a nut in a screwing mode, the attachment of the explosion-proof shell 2 and the explosion-proof seat 3 is also provided with the high-pressure sealing ring, meanwhile, the explosion-proof shell 2 and the explosion-proof seat 3 are both made of aluminum alloy materials with surfaces subjected to plastic spraying treatment, and a closed cavity formed by the two is filled with nitrogen with pressure larger than the pressure of the external environment; the inner wall of the explosion-proof shell 2 is provided with a plurality of inner bosses 2a, and a plurality of high-pressure sealing rings 5 are all arranged in grooves of the inner bosses 2 a; the outer layer of the explosion-proof cable 6 is made of an anti-static material, one end of each of the explosion-proof cables 6 is connected to a circuit module port in the host 1, the other end of each of the explosion-proof cables 6 penetrates into a high-pressure sealing ring 5 in the explosion-proof shell 2 and penetrates out of the explosion-proof shell 2, the outer end of one explosion-proof cable 6 is connected to the explosion-proof plug 7 outside the explosion-proof shell 2, the length of a grounding contact of the explosion-proof plug 7 is larger than that of a main contact of the explosion-proof plug 7, the contact form of the explosion-proof plug is the same as that of a slot of the explosion-proof socket 8, a transient voltage absorption device is arranged in the explosion-proof socket 8, the detection end of the transient voltage absorption device is connected with the power supply end of a power grid to be detected, and the shells of the explosion-proof plug 7 and the explosion-proof socket 8 are made of aluminum alloy materials with surfaces subjected to plastic spraying treatment; the explosion-proof signal lamp 9, the explosion-proof buzzer 10 are all fixed in the outer side of the explosion-proof shell 2, the power supply ends of the explosion-proof signal lamp 9 and the explosion-proof buzzer are respectively connected with the outer end heads of the two explosion-proof cables 6, meanwhile, the shells of the explosion-proof signal lamp 9 and the explosion-proof buzzer 10 are made of aluminum alloy materials with the surfaces subjected to plastic spraying treatment, nitrogen with the pressure larger than the air pressure of the external environment is filled in a closed cavity formed by the shells, and the light source of the explosion-proof signal lamp 9 belongs to an electroluminescent cold light source.
The utility model discloses when implementing the function, ensure earlier that explosion-proof socket 8's sense terminal has inserted among the power supply line of the electric wire netting that awaits measuring among, then insert explosion-proof plug 7 in explosion-proof socket 8's the inslot, because explosion-proof plug 7's ground contact is longer than the main contact, can ensure to remain ground state throughout when the plug, avoid producing the electric spark, the inside transient voltage absorbing device who is equipped with of explosion-proof socket 8 simultaneously can effectively shift the surge pulse of incoming telegram net system, thereby ensure safe in utilization, when the electric wire netting outage triggers main part 1 circuit module through explosion-proof socket 8's connection, will be to explosion-proof signal lamp 9, explosion-proof buzzer 10 takes place the start instruction and makes it send cold light scintillation respectively, alarm bell buzzing's alarm signal. Because the designed inner diameter of a part of the high-pressure sealing ring 5 sleeved with the explosion-proof cable 6 is smaller than the outer diameter of the explosion-proof cable 6 (about 0.5 times of the outer diameter of the explosion-proof cable 6), a closed cavity formed by the explosion-proof shell 2 and the explosion-proof seat 3 ensures that local high temperature and static electricity triggered by the circuit module are completely isolated in the explosion-proof shell 2 under the filling of inert gas, meanwhile, positive-pressure nitrogen filled in the explosion-proof shell 2, the explosion-proof signal lamp 9 and the explosion-proof buzzer 10 can effectively inhibit external combustible gas from permeating inwards, and the combustion and explosion of the inner cavity are completely isolated through an aluminum alloy shell, so that the environment gas is not enough to be ignited; meanwhile, because electroluminescence is a phenomenon of directly converting electric energy into light energy, the cold light source hardly generates heat when working, and can effectively avoid heat accumulation of the explosion-proof signal lamp 9, so that the explosion-proof signal lamp always keeps a low-temperature state, and the use safety in combustible gas is ensured. Through the protection of the various structures, the power-off alarm operation with multiple safety guarantees is implemented on high-risk explosion-proof places.
Hereinbefore, specific embodiments of the present invention have been described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various modifications and substitutions can be made thereto without departing from the spirit and scope of the present invention as set forth in the appended claims.
Claims (10)
1. The utility model provides an explosion-proof type power failure alarm, includes that host computer, flame proof shell, flame proof seat, a plurality of bolt are vice, a plurality of high-pressure seal circle, a plurality of explosion-proof cable, explosion-proof plug, explosion-proof socket, explosion-proof signal lamp, explosion-proof buzzer, its characterized in that: the host machine is provided with a circuit module and a power supply battery which have the functions of monitoring power signals and triggering switch signals, and is arranged in the flameproof shell, the flameproof shell is of a hollow container structure, one end of the flameproof shell is provided with an opening flange, the flameproof seat is attached and fixed at the end face of the opening flange of the flameproof shell through the bolt fastening connection of the bolt pair, the attachment part of the flameproof shell and the flameproof seat is also provided with one high-voltage sealing ring, one end of a plurality of flameproof cables is connected to the port of the circuit module in the host machine, the other end of the plurality of flameproof cables penetrates into the high-voltage sealing ring in the flameproof shell and penetrates out of the flameproof shell, the outer end of one flameproof cable is connected to the flameproof plug outside the flameproof shell, the contact form of the flameproof plug is the same as the slot form of the flameproof socket, the detection end of the flameproof socket is connected with the power supply end of a power grid to be detected, and the flameproof signal lamp and the flameproof buzzer are both fixed outside the flameproof shell, the power supply ends of the two are respectively connected with the outer end heads of the two explosion-proof cables.
2. An explosion-proof power failure alarm as claimed in claim 1, wherein: the explosion-proof shell is characterized in that a plurality of inner bosses are arranged on the inner wall of the explosion-proof shell, a plurality of high-pressure sealing rings are arranged in grooves of the inner bosses, an inert gas is filled in a closed cavity formed by the explosion-proof shell and the explosion-proof seat, an inert gas is filled in the inner cavity of the shell of the explosion-proof signal lamp and the explosion-proof buzzer, and the pressure of the inert gas is greater than the pressure of the external environment.
3. An explosion-proof power failure alarm as claimed in claim 1, wherein: and the bolts in the bolt pairs penetrate through the explosion-proof shell and the through holes of the explosion-proof seat and are fixedly installed in a screwing mode through nuts.
4. An explosion-proof power failure alarm as claimed in claim 1, wherein: the explosion-proof shell and the explosion-proof seat are made of aluminum alloy, and the surfaces of the explosion-proof shell and the explosion-proof seat are both subjected to plastic spraying treatment.
5. An explosion-proof power failure alarm as claimed in claim 1, wherein: the shell materials of the explosion-proof plug, the explosion-proof socket, the explosion-proof signal lamp and the explosion-proof buzzer are all aluminum alloy, the surfaces of the explosion-proof plug, the explosion-proof socket, the explosion-proof signal lamp and the explosion-proof buzzer are all subjected to plastic spraying treatment, and the light source of the explosion-proof signal lamp belongs to an electroluminescent cold light source.
6. An explosion-proof power failure alarm as claimed in claim 1, wherein: the length of the grounding contact of the explosion-proof plug is larger than that of the main contact of the explosion-proof plug.
7. An explosion-proof power failure alarm as claimed in claim 1, wherein: and a transient voltage absorption device is arranged in the explosion-proof socket.
8. An explosion-proof power failure alarm as claimed in claim 1, wherein: the rubber material of the high-pressure sealing ring is nitrile rubber.
9. An explosion-proof power failure alarm as claimed in claim 1, wherein: the inner diameter of the high-voltage sealing ring assembled at the explosion-proof cable is equal to 0.3-0.7 times of the outer diameter of the explosion-proof cable.
10. An explosion-proof power failure alarm as claimed in claim 1, wherein: the outer layer of the explosion-proof cable is made of an anti-static material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022708952.2U CN214151908U (en) | 2020-11-21 | 2020-11-21 | Explosion-proof type power failure alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022708952.2U CN214151908U (en) | 2020-11-21 | 2020-11-21 | Explosion-proof type power failure alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214151908U true CN214151908U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022708952.2U Active CN214151908U (en) | 2020-11-21 | 2020-11-21 | Explosion-proof type power failure alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214151908U (en) |
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2020
- 2020-11-21 CN CN202022708952.2U patent/CN214151908U/en active Active
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