CN217085876U

CN217085876U - Flame-proof and intrinsic safety type audible and visual alarm

Info

Publication number: CN217085876U
Application number: CN202123248280.2U
Authority: CN
Inventors: 逄志明; 刘骏
Original assignee: Shandong Tuoxin Electric Co ltd
Current assignee: Shandong Tuoxin Electric Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-29
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a flame proof and intrinsic safety type audible-visual annunciator, include: the shell is divided into an explosion-proof cavity and an intrinsic safety cavity, a plurality of fixing buckles and bases for connection are arranged on the shell, and the fixing buckles and the bases are arranged in different directions; the loudspeaker is arranged in the explosion-proof cavity and used for playing prompt voice to give an alarm; the light-emitting device is arranged in the explosion-proof cavity and comprises a lamp panel and is used for providing prompt light to give an alarm; the explosion-proof cable leading-in device is used for communicating the explosion-proof cavity and the intrinsic safety cavity and leading in a cable; and the power supply device is arranged in the intrinsic safety cavity, is connected with the loudspeaker and the light-emitting device and supplies power to the loudspeaker and the light-emitting device. The explosion-proof and intrinsically safe audible and visual alarm provided by the utility model adopts the explosion-proof cable leading-in device when communicating the explosion-proof cavity and the intrinsically safe cavity, and does not need to process an explosion-proof surface and use an explosion-proof wiring terminal; be equipped with fixed knot and base on the casing, can install according to the operating mode requirement.

Description

Flame-proof and intrinsic safety type audible and visual alarm

Technical Field

The utility model relates to an audible and visual alarm technical field especially relates to a flame proof and intrinsic safety type audible and visual alarm.

Background

In dangerous places such as mines containing flammable and explosive substances, explosion-proof electrical equipment is often used to improve safety, and due to the particularity of the explosion-proof electrical equipment, many of the explosion-proof electrical equipment are not single explosion-proof types but are combined by two or more explosion-proof types, such as explosion-proof and intrinsically safe types, and meanwhile, the requirements of explosion-proof type explosion prevention and intrinsically safe type explosion prevention are met.

At present, an explosion-proof and intrinsically safe voice alarm is often provided with an explosion-proof cavity and an intrinsically safe cavity, and an explosion-proof wiring terminal is generally adopted when the explosion-proof cavity is communicated with the intrinsically safe cavity, so that an explosion-proof shell is complex to process and long in processing period; and the installation fixed mode is comparatively single, can't satisfy the multiplex condition and use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flame proof and intrinsically safe audible-visual annunciator adopts the explosion proof casing processing complicacy that flame proof type binding post intercommunication explosion proof chamber and intrinsically safe chamber lead to, processing cycle length and the single problem of the fixed mode of installation in order to solve among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a flame proof and intrinsic safety type audible-visual annunciator, flame proof and intrinsic safety type audible-visual annunciator includes:

the shell is divided into an explosion-proof cavity and an intrinsic safety cavity, a plurality of fixing buckles and bases for connection are arranged on the shell, and the fixing buckles and the bases are arranged in different directions;

the loudspeaker is arranged in the explosion-proof cavity and used for playing prompt voice to give an alarm;

the light-emitting device is arranged in the explosion-proof cavity and comprises a lamp panel and is used for providing prompt light to give an alarm;

the explosion-proof cable leading-in device is used for communicating the explosion-proof cavity with the intrinsic safety cavity and leading in a cable;

and the power supply device is arranged in the intrinsic safety cavity, is connected with the loudspeaker and the light-emitting device through cables and supplies power to the loudspeaker and the light-emitting device.

According to an embodiment of the present invention, the housing includes a cover plate covering the intrinsically safe cavity.

According to the utility model discloses an embodiment, the casing is in be equipped with the sealing strip in the apron.

According to the utility model discloses an embodiment, fixed knot is located on the apron, by the apron outwards extends and forms.

According to an embodiment of the present invention, the base is provided at the bottom of the housing, and is formed by extending the bottom of the housing outward.

According to the utility model discloses an embodiment, this ampere of chamber with be equipped with first silica gel pad between the explosion-proof chamber.

According to the utility model discloses an embodiment, the speaker its with the junction of casing is equipped with the second silica gel pad.

According to the utility model discloses an embodiment, illuminator still establishes including the lid the lamp shade of lamp plate, locate transparent backplate on the lamp shade, the lamp shade with the casing is connected.

According to the utility model discloses an embodiment, illuminator is in the lamp shade with the junction of casing is equipped with the third silica gel pad.

According to the utility model discloses an embodiment, power supply unit is including locating power and control panel in this ampere of intracavity, the power with the control panel is connected, the control panel respectively with the speaker with the illuminator is connected.

Compared with the prior art, the utility model provides a flame proof and intrinsic safety type audible-visual annunciator has following advantage:

the explosion-proof and intrinsically safe audible and visual alarm provided by the utility model adopts the explosion-proof cable introduction device to directly introduce when communicating the explosion-proof cavity and the intrinsically safe cavity, has simple structure, does not need to process an explosion-proof surface and use an explosion-proof wiring terminal, and can effectively reduce the production period of the shell; meanwhile, the shell of the flameproof and intrinsically safe audible and visual alarm is provided with a plurality of fixing buckles and a base for connection, and the fixing buckles and the base are different in installation direction and can be installed at corresponding positions according to working condition requirements, so that a plurality of installation fixing modes are provided, and the flameproof and intrinsically safe audible and visual alarm is more flexible and convenient to use.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. In the drawings:

FIG. 1 is a schematic view of a three-dimensional structure of a flameproof and intrinsically safe audible and visual alarm provided by the present invention;

FIG. 2 is a front view of the flameproof and intrinsically safe audible and visual alarm shown in FIG. 1;

FIG. 3 is a cross-sectional view of the flameproof and intrinsically safe audible and visual alarm shown in FIG. 2 along the line A-A;

FIG. 4 is an enlarged view of a part B in the flameproof and intrinsically safe audible and visual alarm shown in FIG. 3;

FIG. 5 is an enlarged view of a part C in the flameproof and intrinsically safe audible and visual alarm shown in FIG. 3;

FIG. 6 is an enlarged view of the portion D of the flameproof and intrinsically safe audible and visual alarm shown in FIG. 3.

Reference numerals:

the explosion-proof cable comprises a shell 1, a 10 explosion-proof cavity, a 20 intrinsic safety cavity, a 11 fixing buckle, a 12 base, a 13 first silica gel pad, a 14 cover plate, 15 sealing strips, a 16 lifting handle, a 2 loudspeaker, a 3 light-emitting device, a 31 lamp panel, a 32 lampshade, a 33 transparent protective plate, a 34 third silica gel pad, a 4 explosion-proof cable leading-in device, a 5 power supply device, a 51 power supply and a 52 control panel.

Detailed Description

The present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific examples described in the following embodiments of the present invention are merely illustrative of specific embodiments of the present invention and do not constitute limitations on the scope of the invention.

The invention is further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to fig. 3, wherein fig. 1 is a schematic view of a three-dimensional structure of a flame-proof and intrinsically safe type audible and visual alarm provided by the present invention; FIG. 2 is a front view of the flameproof and intrinsically safe audible and visual alarm shown in FIG. 1; FIG. 3 is a cross-sectional view of the flameproof and intrinsically safe audible and visual alarm shown in FIG. 2 along the line A-A.

This embodiment provides a flame proof and intrinsically safe audible and visual alarm, flame proof and intrinsically safe audible and visual alarm includes:

the explosion-proof device comprises a shell 1, wherein the shell 1 is divided into an explosion-proof cavity 10 and an intrinsic safety cavity 20, a plurality of fixing buckles 11 and a base 12 for connection are arranged on the shell 1, and the fixing buckles 11 and the base 12 are different in installation direction;

the loudspeaker 2 is arranged in the explosion-proof cavity 10 and used for playing prompt voice to give an alarm;

the light-emitting device 3 is arranged in the explosion-proof cavity 10, and the light-emitting device 3 comprises a lamp panel 31 and is used for providing prompt light to give an alarm;

the explosion-proof cable leading-in device 4 is used for communicating the explosion-proof cavity 10 with the intrinsic safety cavity 20 and leading in a cable;

and the power supply device 5 is arranged in the intrinsic safety cavity 20, is connected with the loudspeaker 2 and the light-emitting device 3 and supplies power to the loudspeaker.

The explosion-proof and intrinsically safe audible and visual alarm provided by the application adopts the explosion-proof cable lead-in device to directly lead in when the explosion-proof cavity is communicated with the intrinsically safe cavity, has a simple structure, does not need to process an explosion-proof surface and use an explosion-proof wiring terminal, and can effectively reduce the production period of the shell; meanwhile, the shell of the flameproof and intrinsically safe audible and visual alarm is provided with a plurality of fixing buckles and a base for connection, and the fixing buckles and the base are different in installation direction and can be installed at corresponding positions according to working condition requirements, so that a plurality of installation fixing modes are provided, and the flameproof and intrinsically safe audible and visual alarm is more flexible and convenient to use.

Explosion suppression means: structurally, the circuit is isolated from the surrounding environment by means of isolating measures, so that the heat produced during normal operation of the circuit and the electric spark and high temperature produced during fault state are all limited in a sealed casing to prevent the surrounding inflammable and explosive gas from being ignited.

This ampere indicates: the intrinsic safety, by limiting the energy in the electrical circuit and cooperating with the structural design of the electrical equipment, makes it impossible to create points in the circuit that meet the ignition source requirements under both normal and accident conditions.

The explosion-proof and intrinsically safe audible and visual alarm is characterized in that the shell 1 is of a main structure of the explosion-proof and intrinsically safe audible and visual alarm and is used for containing various components, the shell 1 is internally divided into an explosion-proof cavity 10 and an intrinsically safe cavity 20 which can be divided into two integrated cavities through a partition plate and also can be divided through other forms, if the explosion-proof cavity 10 and the intrinsically safe cavity 20 are respectively provided with an independent shell and are only communicated with the explosion-proof cable leading-in device 4.

As shown in fig. 4, fig. 4 is an enlarged view of a portion B in the flameproof and intrinsically safe audible and visual alarm shown in fig. 3.

This ampere of chamber 20 with be equipped with first silica gel pad 13 between explosion-proof chamber 10, through first silica gel pad 13 has improved whole protection level, reaches IP65 to satisfy the operation requirement of multiple operating mode in the pit, satisfy explosion-proof standard requirement of flame proof type simultaneously, even the part produces the spark because of short circuit or other reasons, also can not transmit the outside through the faying face, thereby realize explosion-proof function.

IP is an abbreviation for Ingress Protection, and IP class is a class of Protection against foreign object intrusion for electrical equipment enclosures, such as: explosion-proof electrical equipment, waterproof and dustproof electrical equipment, and the source is the standard IEC 60529 of the International electrotechnical Commission. The reference numeral 6 in IP65 indicates a contact protection and foreign matter protection level, i.e., a dust protection level, completely preventing dust from entering, and the reference numeral 5 indicates a water protection level, and low-pressure spray at any angle has no influence.

As shown in fig. 1 and 2, the fixing buckle 11 is disposed on a side surface of the housing 1 to provide connection in a vertical direction, a through hole is disposed in the middle of the fixing buckle 11, and the housing 1 can be fixed at a corresponding position through screw connection, of course, the fixing buckle 11 may also be in other structures, such as various forms of threads, buckles, and the like, and the housing 1 can be fixed. The number of the fixing buckles 11 is four, the fixing buckles are uniformly distributed on one surface of the shell 1, and the shell 1 is fixed more stably.

Base 12 is located the bottom of casing 1, by the bottom of casing 1 outwards extends and forms, provides the connection of horizontal direction, be equipped with the through-hole in the middle of base 12, accessible screwed connection will casing 1 is fixed in corresponding position, of course, base 12 still can be other structures, like multiple forms such as screw thread, buckle, can with casing 1 fix can. The number of the bases 12 is two, and the two bases are respectively arranged on two sides of the shell 1.

In this embodiment, the fixing buckle 11 and the base 12 provide different installation directions, so as to satisfy the applicability under various working conditions.

According to the utility model discloses an embodiment, casing 1 is including covering the apron 14 in this ampere of chamber 20, furtherly, fixed knot 11 is located on the apron 14, by apron 14 outwards extends and forms, fixed knot 11 with apron 14 integrated into one piece makes it is more firm when fixed to detain 11.

As shown in fig. 5, fig. 4 is an enlarged view of a portion C in the flameproof and intrinsically safe audible and visual alarm shown in fig. 3.

Further, the housing 1 is provided with a sealing strip 15 inside the cover plate 14. The sealing strip 15 enables the protection grade between the intrinsic safety cavity 20 and the cover plate 14 to reach IP65, and the damage rate in the use process is reduced.

The top of the shell 1 is provided with a handle 16, so that the flameproof and intrinsically safe audible and visual alarm can be moved and carried conveniently.

The loudspeaker 2 is a transducer for converting an electrical signal into an acoustic signal, and audio electric energy causes a cone or a diaphragm of the loudspeaker to vibrate and resonate (resonate) with surrounding air to produce sound through electromagnetic, piezoelectric or electrostatic effects.

Specifically, the speaker is composed of several key components of T-iron, a magnet, a voice coil, and a diaphragm. When an alternating current passes through the coil of the horn (i.e., the voice coil), a corresponding magnetic field is generated in the voice coil, and the magnetic field interacts with the magnetic field generated by the magnet carried by the horn, so that the voice coil vibrates with the audio current in the magnetic field of the permanent magnet carried by the horn. The diaphragm and voice coil are coupled together such that when the voice coil vibrates with the diaphragm of the speaker, it pushes the surrounding air into vibration, and the speaker thereby produces sound. Under the condition that the magnet volume is the same and the voice coil is the same, the performance of the magnet has direct influence on the tone quality of the loudspeaker: the larger the magnetic flux density (magnetic induction) B of the magnet is, the stronger the thrust force acting on the diaphragm is.

The loudspeaker 2 is made of a novel magnetic material, the integral volume of the equipment is more than or equal to 110dB, and the operator can still receive clear prompt voice under a noisy underground working condition; and the protection grade of the loudspeaker 2 is IP65, so that the service life under the mine working condition can be greatly prolonged.

According to the utility model discloses an embodiment, speaker 2 its with casing 1's junction is equipped with the second silica gel pad, has improved whole protection level, reaches IP65 to satisfy the operation requirement of multiple operating mode in the pit.

Specifically, the second silica gel pad is 704 silicone rubber, is a single-component room temperature vulcanized silicone rubber with good adhesion, high strength and no corrosion, has excellent electrical insulation performance, sealing performance and aging resistance, and can be used for a long time within the range of-50 ℃ to +250 ℃.

Illuminator 3 exerts light suggestion including inlaying the lamp plate 31 of hi-lite LED lamp pearl when playing suggestion pronunciation, gives the operator to the message of suggestion by multiple mode, reaches the prompt action of multiple sense organ. The LED lamp beads can be used for displaying light for numbers with different colors, can also be used for displaying light by forming character patterns of characters, can also be used for displaying light by using numbers and characters, and can also be used for displaying light by using different warning conditions.

The LED is a semiconductor light-emitting diode and is made of semiconductor materials so as to directly convert electric energy into light energy and convert an electric signal into a light signal; its advantages are low power consumption, high brightness, gay colour, vibration resistance, long service life (8-10 ten thousand hours), and cold light source. The color can be changed by changing the current, and the energy band structure and the band gap of the material can be adjusted by a chemical modification method, so that the multicolor luminescence of red, yellow, green, blue and orange is realized.

According to an embodiment of the present invention, the light emitting device 3 further comprises a cover disposed on the lamp cover 32 of the lamp panel 31, a transparent protective plate 33 disposed on the lamp cover 32, and the lamp cover 32 is connected to the housing 1.

The operator passes through lamp shade 32 sees the light that lamp plate 31 sent, specifically, transparent backplate 33 is acrylic backplate, and acrylic backplate is the general name of acrylic acid and methacrylic acid chemicals, has the ordinary transparency of quartzy, and the luminousness reaches more than 92%, has splendid weatherability, higher surface hardness and surface gloss and better high temperature resistance ability, good processing property.

As shown in fig. 6, fig. 6 is an enlarged view of a portion D in the flameproof and intrinsically safe audible and visual alarm shown in fig. 3.

According to the utility model discloses an embodiment, illuminator 3 is in lamp shade 32 with the junction of casing 1 is equipped with third silica gel pad 34, has improved whole protection level, reaches IP65 to satisfy the operation requirement of multiple operating mode in the pit.

The speaker 2 and the light-emitting device 3 are vertically arranged in the explosion-proof chamber 10, but in other embodiments, the speaker 2 and the light-emitting device 3 may be horizontally arranged in the explosion-proof chamber 10, or may be configured in other forms.

The explosion-proof cable leading-in device 4 is a device which allows one or more cables or optical cables to be led into electrical equipment and can ensure the explosion-proof type of the electrical equipment, independently meets the requirements of explosion-proof and protection grades, and meets the standard of GB 3836.1-2010. By this ampere of chamber 20 gets into the cable in explosion-proof chamber 10 no longer passes through the access of current explosion-proof binding post, through only need during explosion-proof cable introducing device 4 direct introduction trompil, welding can, need not to process accurate explosion-proof face, thereby shortens the production cycle of casing 1 improves production efficiency and reduction in production cost.

In order to ensure the sealing performance, the explosion-proof cable leading-in device 4 can adopt an elastic sealing ring, a metal or composite sealing ring or a filler. The adopted compression sealing mode meets the requirements of sealing and explosion prevention, materials can be selected according to the field use environment, and whether magnetic conduction is available or not and whether corrosion resistance is needed or not are required, such as high-quality low-carbon steel or acid-resistant stainless steel, environment-friendly copper nickel plating and the like. The thread not only needs to meet the national standard and is convenient to exchange, but also needs to meet the sealing requirement, such as the sealing taper pipe thread.

According to an embodiment of the present invention, the power supply device 5 comprises a power supply 51 and a control board 52 disposed in the intrinsically safe cavity 20, the power supply 51 is connected with the control board 52, and the control board 52 is connected with the speaker 2 and the light emitting device 3 through the cable respectively.

The power supply 51 is an intrinsic safety power supply and has high safety. The power supply of all the parts is provided by the intrinsic safety power supply, so that sparks cannot be generated even if the parts are short-circuited, and an explosion-proof function is realized.

The control board 52 is a control circuit board designed to meet the control requirements.

In the above description of the present specification, the terms "fixed," "mounted," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, with the term "coupled", it can be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship. Therefore, unless otherwise explicitly defined in the specification, the specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

From the above description of the present specification, those skilled in the art will also understand the terms used below, terms indicating orientation or positional relationship such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise" are based on the orientation or positional relationship shown in the drawings of the present specification, it is for the purpose of facilitating the explanation of the invention and simplifying the description, and it is not intended to state or imply that the devices or elements involved must be in the particular orientation described, constructed and operated, therefore, the above terms of orientation or positional relationship should not be interpreted or interpreted as limiting the present invention.

In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless specifically defined otherwise.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim.

Claims

1. The utility model provides a flame proof and intrinsic safety type audible-visual annunciator which characterized in that, flame proof and intrinsic safety type audible-visual annunciator includes:

the explosion-proof shell (1) is provided with a plurality of fixing buckles (11) and a base (12), wherein the fixing buckles (11) and the base (12) are different in installation direction;

the loudspeaker (2) is arranged in the explosion-proof cavity (10) and used for playing prompt voice to give an alarm;

the light-emitting device (3) is arranged in the explosion-proof cavity (10), and the light-emitting device (3) comprises a lamp panel (31) and is used for providing prompt light to give an alarm;

the explosion-proof cable leading-in device (4) is used for communicating the explosion-proof cavity (10) and the intrinsic safety cavity (20) and leading in a cable;

and the power supply device (5) is arranged in the intrinsic safety cavity (20), is connected with the loudspeaker (2) and the light-emitting device (3) and supplies power to the loudspeaker.

2. The flameproof and intrinsically safe audible and visual alarm of claim 1, characterized in that the housing (1) further comprises a cover plate (14) covering the intrinsically safe cavity (20).

3. The flameproof and intrinsically safe audible and visual alarm device according to claim 2, characterized in that a sealing strip (15) is arranged in the cover plate (14) of the shell (1).

4. The flameproof and intrinsically safe audible and visual alarm device according to claim 2, wherein the fixing buckle (11) is arranged on the cover plate (14) and is formed by extending the cover plate (14) outwards.

5. The flameproof and intrinsically safe audible and visual alarm device according to claim 1, characterized in that the base (12) is arranged at the bottom of the shell (1) and is formed by extending the bottom of the shell (1) outwards.

6. An explosion-proof and intrinsically safe audible and visual alarm as claimed in claim 1, characterized in that a first silica gel pad (13) is arranged between the intrinsically safe cavity (20) and the explosion-proof cavity (10).

7. The flameproof and intrinsically safe audible and visual alarm device according to claim 1, characterized in that a second silica gel pad is arranged at the joint of the loudspeaker (2) and the shell (1).

8. The flameproof and intrinsically safe audible and visual alarm device according to claim 1, characterized in that the light emitting device (3) further comprises a lampshade (32) covering the lamp panel (31) and a transparent protective plate (33) arranged on the lampshade (32), wherein the lampshade (32) is connected with the shell (1).

9. The flameproof and intrinsically safe audible and visual alarm device according to claim 8, characterized in that a third silica gel pad (34) is arranged at the joint of the lampshade (32) and the shell (1) of the light-emitting device (3).

10. The flameproof and intrinsically safe audible and visual alarm device according to any one of claims 1 to 9, wherein the power supply device (5) comprises a power supply (51) and a control board (52) which are arranged in the intrinsically safe cavity (20), the power supply (51) is connected with the control board (52), and the control board (52) is respectively connected with the loudspeaker (2) and the light-emitting device (3).