CN215910969U

CN215910969U - Explosion-proof audible and visual alarm probe

Info

Publication number: CN215910969U
Application number: CN202122400865.5U
Authority: CN
Inventors: 徐改凤
Original assignee: Hebei Junxing Technology Co ltd
Current assignee: Hebei Junxing Technology Co ltd
Priority date: 2021-10-02
Filing date: 2021-10-02
Publication date: 2022-02-25
Anticipated expiration: 2031-10-02

Abstract

The utility model relates to an explosion-proof sound-light alarm probe for a field, which belongs to the field of industrial signal alarm and is characterized by at least comprising an alarm lamp assembly, a control assembly and an electrical interface assembly. An alarm lamp assembly consisting of a signal lamp and a lampshade welded on the elastic contact plate I and an electrical interface assembly consisting of an electrical interface, an elastic contact plate II and a lead-out wire are respectively in threaded connection with the two ends of the control assembly; the control component is assembled into a whole by a cylindrical shell and a circuit board I, a control panel, an electroacoustic device, a filter screen, a horn-shaped loudspeaker and a circuit board II in the shell in sequence, and the circuit board I, the circuit board II and the electroacoustic device are electrically connected with the control panel. The electrical interface component and the alarm lamp component can be exchanged and exchanged at two ends of the control component to be connected, so that the electric control device is suitable for different field applications. The utility model has simple and practical structure and small installation space, can realize the installation on horizontal, upward and downward parallel electrical interfaces by flexible assembly, can also be led out by a cable and fixed on a bracket, a flat plate or a pipeline at different places, and has the characteristics of rain and snow resistance, freezing resistance and the like.

Description

Explosion-proof audible and visual alarm probe

Technical Field

The utility model relates to the field of industrial signal alarming, in particular to an explosion-proof type sound-light alarming probe used for a site.

Background

In the field of industrial automation control, when equipment is abnormal or has faults or dangerous sources are dangerous on site, a safety alarm system is indispensable, and the system automatically adopts linkage control and also needs to inform related personnel to take measures to process or take corresponding danger avoiding actions in time so as to prevent more loss or personal injury. And increase on-the-spot safety inspection equipment is that the effective shortcut that peripheral personnel in dangerous place of timely inform nearby carries out the most timely processing, audible-visual annunciator's structural style commonly used at present scene is mostly T type structure, and the electrical interface installation is the horizontal direction, and LED flashing of light is reported to the police and sound generator distributes and adorns at audible-visual annunciator's cylindrical structure's top and bottom, and need be equipped with the fastening nut after the installation and make the alarm be vertical direction, makes sound protection casing direction down, accomplishes rain-proof dustproof protection. We are in practical application, often meet the electric interface that needs to install the alarm and can be the parallel up side by side of several or the ascending interface of down side, also be the horizontal direction, and the adjacent interface of audible-visual annunciator with the installation is the explosion-proof hose of threading cable, this space is restricted when just making the audible-visual annunciator of installation, unable rotatory installation alarm, perhaps need demolish and install again behind the explosion-proof hose, it is high to the installation space requirement, still need to be equipped with the tight nut after the alarm installation and make the alarm be vertical direction, and it is insecure to also rotate the wrench movement easily after the fixing, the operation is extremely troublesome loaded down with trivial details. Some place instruments or explosion-proof junction boxes have shielding equipment around the installation position, and audible and visual alarms are installed in the places where the electrical interfaces of the equipment are not suitable and need to be observed easily, and the existing audible and visual alarms can be realized only by being provided with corresponding installation interfaces, so that the use is limited.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide an explosion-proof sound-light alarm probe. The utility model not only can well solve the problems of installation and space limitation of a plurality of parallel electrical interfaces, but also can be flexibly installed in various directions, and can be conveniently installed by leading to a proper position through a cable.

The technical scheme of the utility model is as follows: an explosion-proof sound-light alarm probe at least comprises an alarm lamp assembly, a control assembly and an electrical interface assembly. An alarm lamp assembly consisting of an elastic contact plate I and a signal lamp and a lampshade welded on the elastic contact plate I and an electrical interface assembly consisting of an electrical interface, an elastic contact plate II and a lead are respectively in threaded connection with two ends of the control assembly; the control component is assembled into a whole by a cylindrical shell and a circuit board I, a control panel, an electroacoustic device, a filter screen, a horn-shaped loudspeaker and a circuit board II in the shell in sequence, and the circuit board I, the circuit board II, the electroacoustic device and the control panel are respectively and electrically connected.

Furthermore, a plurality of sound transmission holes are formed in the shell of the control assembly and positioned between the horn-shaped loudspeaker and the circuit board II.

Furthermore, the horn type loudspeaker, its appearance is cylindrical, and the hole is the horn type, and is provided with annular groove near its uncovered tip to outside rainwater inward flow corrodes when cutting off horizontal installation.

Furthermore, the circuit board I and the circuit board II are circular, one surfaces of the circuit board I and the circuit board II, which are contacted with the elastic contact plate I and the elastic contact plate II, are provided with a plurality of concentric conducting rings, and the other surfaces of the circuit board I and the circuit board II are provided with connectors which are respectively and electrically connected with the conducting rings and can be electrically connected with control board leading wires or signal lamp control wires.

Furthermore, the elastic contact board I and the elastic contact board II are formed by welding a spring pin connector and a circuit board, and the spring pin connector is arranged at the position where the motion trail of the elastic contact corresponds to the conducting rings of the circuit board I and the circuit board II respectively when the elastic contact board is assembled in a rotating mode. When the electrical interface assembly, the alarm lamp assembly and the control assembly rotate in place in a threaded manner, the elastic contact is reliably and electrically connected with the conducting ring, and the lead-out wire or the signal lamp is welded on the other surface of the circuit board.

Furthermore, the alarm lamp assembly, the electric interface assembly and the control assembly are respectively provided with threads with the same specification, the threads can be exchanged when being in threaded connection with the two ends of the control assembly, and the outgoing line of the alarm probe and the control signal of the alarm lamp assembly automatically distribute corresponding signal lines through the elastic connector and the concentric conducting ring.

Furthermore, the filter screen is a filter body with sound transmission performance formed by sintering and pressing metal solid particles.

Furthermore, the electrical interface assembly can also comprise a sealing ring and a compression joint, and is used for mechanically sealing the outgoing line of the alarm probe in a cable outgoing mode so as to adapt to the use of the alarm probe in a cable hoisting or support fixing mode.

When the alarm probe needs to give an alarm, an alarm signal is sent to the outgoing line by an external signal, then the outgoing line passes through the elastic contact II, the circuit board II and the lead to the control board, after the control board receives the alarm signal, the control board controls the electroacoustic device to sound, sound penetrates through the filter screen and sends out sound alarm through the horn-shaped sound expander and the sound through hole, and the signal lamp flickers to give an alarm through the electric connection of the circuit board I and the elastic contact board, so that audible and visual alarm is realized.

The utility model has the beneficial effects that: the utility model can well solve the problems of installation and space limitation of a plurality of parallel electrical interfaces, can be conveniently installed on a plurality of parallel electrical interfaces of an instrument shell or an explosion-proof junction box, and can be flexibly installed in various directions. The utility model can be separately fixed on a bracket, a flat plate or a pipeline and other equipment by a cable connection mode without depending on the electric interface fixing mode of the equipment.

In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic view of protection of a protective cover according to embodiment 3 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 4 of the present invention.

Fig. 5 is a schematic view of an installation of embodiment 4 of the present invention.

Description of reference numerals:

1. the alarm lamp assembly 2, the control assembly 3, the electrical interface assembly 4, the elastic contact plate I5, the signal lamp 6, the lamp shade 7, the electrical interface 8, the elastic contact plate II 9, the outgoing line 10, the cable 11, the shell 12, the circuit board II 13, the horn-shaped sound amplifier 14, the filter screen 15, the electroacoustic device 16, the control panel 17, the circuit board I18, the lead 19, the sound transmission hole 20, the circuit board III 21, the spring pin connector 22, the circuit board IV 23, the sealing ring 24, the annular groove 25, the protective cover 26, the compression interface 27, the sealing ring 29, the nut 29 and the like

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the utility model.

Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

Example 1

As shown in figure 1, the explosion-proof sound-light alarm probe comprises an alarm lamp assembly 1, a control assembly 2 and an electrical interface assembly 3. An alarm lamp assembly consisting of an elastic contact plate I4 welded on a signal lamp 5 and a lampshade 6 and an electrical interface assembly 3 consisting of an electrical interface 7, an elastic contact plate II8 and a lead 9 are respectively in threaded connection with two ends of the control assembly 2; the control assembly 2 is formed by sequentially assembling a cylindrical shell 11, a circuit board I17, a control board 16, an electroacoustic device 15, a filter screen 14, a horn-shaped loudspeaker 13 and a circuit board II12 in the shell 11 into a whole, wherein the circuit board I17, the circuit board II12, the electroacoustic device 15 and the control board 16 are respectively and electrically connected.

A plurality of sound transmission holes 19 are arranged between the horn type loudspeaker 13 and the circuit board II12 on the shell 11 of the control component.

The horn-shaped loudspeaker 13 is cylindrical in shape, the inner hole is horn-shaped, and an annular groove 24 is formed in the end part, close to the opening, of the horn-shaped loudspeaker to prevent external rainwater from flowing inwards and corroding.

The circuit board I17 and the circuit board II12 are circular, one surface of each of the circuit board I17 and the circuit board II12, which is in contact with the elastic contact board I4 and the elastic contact board II8, is provided with a plurality of concentric conducting rings, and the other surface of each of the circuit board I17 and the circuit board II12 is provided with a connector which is respectively and electrically connected with the conducting rings and is electrically connected with a control board lead-out wire or a signal lamp control wire.

The elastic contact plate I4 and the elastic contact plate II8 are respectively formed by welding a pogo pin connector 21, a circuit board III20 and a circuit board IV22, and the pogo pin connector 21 is arranged at a position where the motion locus of the elastic contact corresponds to the conductive rings of the circuit board I17 and the circuit board II12 respectively when the elastic contact plate is assembled in a rotating manner. When the electrical interface component 3, the alarm lamp component 1 and the control component 2 are screwed to the right position, the elastic contact is reliably and electrically connected with the conducting ring, and the outgoing line 9 or the signal lamp 5 is respectively welded on the other sides of the circuit board I17 and the circuit I12.

The connection ends of the alarm lamp component 1, the electrical interface component 3 and the control component 2 are respectively provided with threads with the same specification, the threaded connection part is provided with an O-shaped sealing ring 24, the positions of the O-shaped sealing ring and the control component can be exchanged when the O-shaped sealing ring and the control component are in threaded connection with the two ends of the control component 2, and the outgoing line 14 of the alarm probe and the control signal of the alarm lamp component 1 automatically distribute corresponding signal lines through the elastic connector 21 and the concentric conducting ring.

In the embodiment 1, the electrical interface assembly 3 is connected to the circuit board II12 of the housing 11 and the threads at the end of the sound-transmitting hole 19, and the alarm assembly 1 is connected to the circuit board I17 of the housing 11.

Furthermore, the circuit board I17, the filter screen 14, the horn-shaped loudspeaker 13, the circuit board II12 and the connecting leads 18 therebetween in the control assembly 2 are all sealed with potting adhesive between the inner wall of the housing 11 and between the via hole of the electrical interface 7 and the elastic contact plate II8 to meet the requirements of fixation and electrical explosion prevention.

When the alarm probe needs to give an alarm, an alarm signal is sent to the outgoing line 9 by an external signal, and then the outgoing line passes through the elastic contact II8, the circuit board II12 and the lead 18 to the control board 16, after the control board 16 receives the alarm signal, the control board controls the electroacoustic device 15 to generate sound, the sound penetrates through the filter screen 14 and sends out sound alarm through the horn-shaped acoustic expander 13 and the sound through hole 19, and the signal lamp 5 is enabled to flash to give an alarm by the electric connection of the circuit board I17 and the elastic contact plate 4, so that the acousto-optic alarm is realized.

Example 2

The present example differs from example 1 in that: as shown in FIG. 2, the electrical interface module 3 is connected to the circuit board I17 of the housing 11, and the alarm module 1 is connected to the circuit board II12 of the housing 11 and the end of the sound-transmitting hole 19. the assembly method is mainly applied to devices with downward electrical interfaces, and the vertical direction of the control module different from that of example 1 is changed, so that the alarm probe is suitable for the operation in rainy weather, and water is prevented from entering through the sound-transmitting hole 19.

The conductive loops of the circuit board II12 and the circuit board I17 which are correspondingly connected with the spring pin connector 21 on the spring contact plate II8 in the electrical interface assembly 3 and the spring pin connector 21 on the spring contact plate I4 in the alarm lamp assembly 1 are different, so that the electric signal distribution of the alarm lamp assembly 1 and the electrical interface assembly 3 is realized.

When the alarm probe needs to give an alarm, an alarm signal is sent to the outgoing line 9 from an external signal, the alarm signal is sent to the control panel 16 through the electric connection between the elastic contact II8 and the circuit board II17, the control panel 16 controls the electroacoustic device 15 to sound after receiving the alarm signal, and the sound penetrates through the filter screen 14 and sends out sound alarm through the horn-shaped sound expander 13 and the sound transmission hole 19; the control board 16 outputs signals at the same time, and the signal lamp 5 arranged at the other end of the shell flickers to give an alarm through the electric connection between the lead 18, the circuit board I12 and the elastic contact board 8, so that the acousto-optic alarm is realized.

Example 3

As shown in fig. 3, example 3 is a mode of improving the ice and snow prevention capability in addition to examples 1 and 2.

Although

embodiments

1 and 2 are mainly directed to the manner in which the mounting interface faces upward or downward, both examples can be used in a horizontal installation and have a rain-proof capability.

Embodiments

1 and 2 have the rainproof function when horizontally installed because the plurality of sound-transmitting holes 19 around the housing 11 of the control unit 2 allow rainwater to drain in time when horizontally installed, and the annular groove 24 structure of the horn loudspeaker 13 blocks rainwater from invading the inside. However, in severe weather such as ice and snow, freezing accumulation may occur at the sound-transmitting hole 19, which may cause sound-transmitting failure and affect sound alarm.

The improvement scheme realized by the embodiment is as follows: a protective cover 25 is added in the area of the sound-transmitting aperture 19 of the control assembly 2. The protective cover 25 is a protective structure with two tubular ends and a semi-notch in the middle, the inner diameter of the middle pipe is larger than the diameter of the shell 11 to ensure the sound of the sound-transmitting hole to be transmitted, the notch is downward when the protective cover is installed, and the two ends are sealed and sleeved on the cylindrical surfaces at the two sides of the sound-transmitting hole 19 of the shell 11.

Therefore, the protective cover is an effective measure for coping with severe freezing weather in winter.

Example 4

As shown in fig. 4, the main difference between this embodiment 4 and embodiments 1 to 3 is an electrical interface assembly 3, which includes an electrical interface 7 and an elastic contact plate II8, and further includes a sealing ring 27 and a pressing interface 26, the outgoing line 7 is changed into a cable 10, after the cable 10 passes through the pressing interface 26 and the sealing ring 27 and is electrically connected to the elastic contact plate II8, the pressing interface 26 presses the sealing ring 27 to deform the sealing ring 27 so as to hold the cable 10 tightly, thereby achieving the requirements of holding, sealing and explosion protection.

As shown in fig. 5, which is a mounting mode that the alarm probe is fixed below the mounting bracket in a downward direction by adopting a cable leading-out mode, after the alarm probe is assembled by adopting the structure described in embodiment 2, the electrical interface 7 of the alarm probe passes through the mounting hole of the mounting bracket and is locked and fixed by the nut 29.

If the alarm probe is required to be fixed above the mounting bracket in a way that the alarm probe faces upwards, the alarm probe is required to be assembled and then fixed above the mounting bracket in the way of the embodiment 1.

Parts of the above embodiments that are not specifically described are well known components and conventional structures or conventional means in the art and will not be described in detail herein.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the utility model, which is intended to be covered by the claims and any design similar or equivalent to the scope of the utility model.

Claims

1. An explosion-proof audible and visual alarm probe is characterized in that: at least comprises an alarm lamp component, a control component and an electrical interface component; an alarm lamp assembly consisting of an elastic contact plate I and a signal lamp and a lampshade welded on the elastic contact plate I and an electrical interface assembly consisting of an electrical interface, an elastic contact plate II and a lead-out wire are respectively in threaded connection with two ends of the control assembly; the control component is assembled into a whole by a cylindrical shell and a circuit board I, a control panel, an electroacoustic device, a filter screen, a horn-shaped loudspeaker and a circuit board II in the shell in sequence, and the circuit board I, the circuit board II and the electroacoustic device are electrically connected with the control panel.

2. An explosion-proof acousto-optic alarm probe according to claim 1, characterized in that: the positions of the alarm lamp component and the electric interface component can be interchanged when the alarm lamp component and the electric interface component are in threaded connection with the two ends of the control component.

3. An explosion-proof sound and light alarm probe according to claim 1, wherein a plurality of sound-transmitting holes are arranged on the casing of the control assembly between the horn-shaped sound amplifier and the circuit board II.

4. An explosion-proof acousto-optic alarm probe according to claim 1, characterized in that: the horn-shaped sound expander is provided with an annular groove at the end part close to the opening.

5. The explosion-proof acousto-optic alarm probe according to claim 1, wherein the circuit board I and the circuit board II are circular, one surface of the circuit board I and the circuit board II, which is contacted with the elastic contact plate I and the elastic contact plate II, is provided with a plurality of concentric conducting rings, and the other surface of the circuit board I and the circuit board II is provided with connectors which are respectively and electrically connected with the conducting rings and can be electrically connected with a control board lead wire or a signal lamp.

6. An explosion-proof sound and light alarm probe according to claim 1, wherein the elastic contact plate I and the elastic contact plate II are formed by welding a spring pin connector and a circuit board, and the spring pin connector is arranged at a position where the movement locus of the elastic contact corresponds to the conductive rings of the circuit board I and the circuit board II respectively when the elastic contact plate is assembled in a rotating manner and is electrically connected with the conductive rings.

7. An explosion-proof audible and visual alarm probe according to claim 1, wherein the electrical interface assembly further comprises a sealing ring and a compression joint for mechanically sealing the outgoing line in a cable outgoing manner.