CN209845066U

CN209845066U - Wall-mounted explosion-proof telephone station

Info

Publication number: CN209845066U
Application number: CN201921286781.XU
Authority: CN
Inventors: 王河南
Original assignee: Wuhan Kaiyida Technology Co Ltd
Current assignee: Wuhan Kaiyida Technology Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2019-12-24
Anticipated expiration: 2029-08-09

Abstract

The utility model belongs to the technical field of explosion-proof telephone station, especially, be a wall-hanging explosion-proof telephone station, the power distribution box comprises a box body, upper cover and stationary blade, the upper end of upper cover is provided with keyboard and phone handle, the left side of keyboard is provided with the control area, the upper surface of upper cover is provided with the pilot lamp, the one end of phone handle is connected with the line of talking, the one end that the phone handle was kept away from to the line of talking is provided with gland nut, gland nut and the left surface fixed connection of box, the left side of box is connected with the connection otic placode, the one end that the box was kept away from to the connection otic placode is connected with the visor, the below of box is provided with the cable. The utility model discloses a set up control area and mainboard for the function of explosion-proof words station is diversified, handles through the module of making an uproar that falls, makes the noise interference killing feature at explosion-proof words station improve, and speech quality improves to some extent, and through the stationary blade structure that sets up, fixed visor plays the effect of protection to inside device and circuit board.

Description

Wall-mounted explosion-proof telephone station

Technical Field

The utility model relates to an explosion-proof words station technical field, in particular to wall-hanging explosion-proof words station.

Background

Currently, non-digital amplified calling/speaking systems, which can be used in environments with explosive gases or dust, employ explosion-proof stations with 220V/50HZ (or 120V/60HZ) direct power supply, consisting of aluminum casting shells. The explosion-proof telephone station comprises a box body, a box cover, a power transformer, a power unit, an audio amplification transformer, an audio power amplification transformer, a call calling unit and a transmitter and receiver, wherein the power unit, the audio amplification transformer, the audio power amplification transformer and the call calling unit are arranged in a shell consisting of the box body and the box cover, and the transmitter and receiver are connected with the call calling unit through signal wires. The transmitter in the handset converts the sound into weak audio voltage, and after the weak audio voltage is amplified by the call calling unit, the weak audio voltage is output to other telephone stations by using the audio amplifying transformer. The audio voltage transmitted from other telephone stations is transmitted to a receiver in the handset by using an audio amplifying transformer, and the audio voltage is converted into sound, so that the double-function talkback function is realized. When other stations call the station, the audio voltage transmitted from other stations is input to the power amplifier circuit of the call unit through the audio power amplifier transformer, and is output to the loudspeaker attached to the station after power amplification, so as to realize the function of amplified call. However, the existing explosion-proof telephone station has the following problems:

1. the intelligent degree of an internal circuit of the explosion-proof telephone is not high, and the explosion-proof telephone must automatically select telephone channel switching;

2. the existing explosion-proof telephone has the problems of noise, high requirement on environment, noise, poor noise anti-interference capability on peripheral supporting facilities, low call quality and unclear listening;

3. according to the existing explosion-proof telephone station, after a call is finished, if an operator forgets to close a telephone station door, an accident is easily caused, sometimes the telephone station door is not closed tightly, wind is easily blown open, and internal devices and a circuit board can be damaged, so that the telephone station is out of order.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a wall-mounted explosion-proof telephone station, which solves the problems that the intelligent degree of the internal circuit of an explosion-proof telephone is not high, the explosion-proof telephone must automatically select the telephone channel for switching, the existing explosion-proof telephone has noise, has higher requirements on the environment, has noise and poor noise interference resistance to peripheral supporting facilities, is easy to cause low conversation quality and is unclear; according to the existing explosion-proof telephone station, after a call is finished, if an operator forgets to close a telephone station door, an accident is easily caused, sometimes the telephone station door is not closed tightly, wind is easily blown open, and the problems that an internal device and a circuit board are damaged and the like are caused.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the portable telephone set comprises a box body, an upper cover and a fixing piece, wherein a keyboard and a telephone handle are arranged at the upper end of the upper cover, a control area is arranged at the left side of the keyboard, an indicator lamp is arranged on the upper surface of the upper cover, a telephone line is connected to one end of the telephone handle, a gland nut is arranged at the end, away from the telephone handle, of the telephone line, the gland nut is fixedly connected with the left side surface of the box body, a connecting ear plate is connected to the left side of the box body, a protective cover is connected to the end, away from the box body, of the connecting ear plate, a cable leading-out end is arranged below the box body, a noise reduction module and a main board are arranged inside the box body, a fixing plate is connected to the lower ends of the noise reduction module and the main board, a power supply module is arranged on one side of the fixing plate, hanging buckles are, the fixing base is installed to the lower extreme of stationary blade, the both sides fixedly connected with installation wing of fixing base, the front end of fixing base is provided with the pivot, the outside of pivot is rotated and is connected with and presses the board, the inboard of pressing the board is provided with fixed spring, the both ends of pivot are connected with movable buckle.

As a preferred technical scheme of the utility model, the keyboard passes through hexagon socket head cap screw and upper cover fixed connection, through fixed screw fixed connection between control area and the upper cover, the composition surface of upper cover and box still is provided with the sealing washer.

As an optimized technical scheme of the utility model, the quantity of connecting the otic placode is four groups, and rotates between the connection otic placode and be connected with the round pin axle.

As a preferred technical scheme of the utility model, fixed spring's one end is in the outside according to the board through solid fixed ring fixed connection, and fixed spring's the other end passes through solid fixed ring fixed connection on the box, the pivot runs through according to the inside of board and according to board swing joint, the riveting fixed is passed through with the pivot to activity buckle, and the quantity of activity buckle is two sets of.

As a preferred technical scheme of the utility model, the quantity that the end was drawn forth to the cable is three groups, and the business turn over wire hole that each cable was drawn forth the end all is provided with explosion-proof end cap, explosion-proof end cap all is sealed through the sealing washer fastening.

As an optimized technical scheme of the utility model, the material of phone handle is the polyester material, and the casing surface resistance of phone handle is less than 10⁸Ω。

As a preferred technical scheme of the utility model, bottom surface fixed connection under the inboard of power module through bolt and box, the output of control area, keyboard, pilot lamp, noise reduction module and mainboard all is through internal circuit and power module's input electric connection.

(III) advantageous effects

Compared with the prior art, the utility model provides a wall-hanging explosion-proof words station possesses following beneficial effect:

1. according to the wall-mounted explosion-proof telephone station, the control area and the main board are arranged, so that the functions of the explosion-proof telephone station are diversified, the intelligent degree of an internal circuit is improved, the telephone channel switching is not required to be manually selected, and the explosion-proof box body can be used in an IIC-level explosive gas area through the rectangular structural form of the explosion-proof plug;

2. according to the wall-mounted explosion-proof telephone station, the noise anti-interference capability of the explosion-proof telephone station is improved through the processing of the arranged noise reduction module, and the conversation quality is improved;

3. this wall-hanging explosion-proof station through the stationary blade structure that sets up, couples together visor and box, prevents that operating personnel from forgetting to close the telephone station door after the conversation, causes the emergence of accident easily, and sometimes the telephone station door does not close tightly, and wind blows easily, can damage the emergence of inside device, the malfunctioning scheduling problem of circuit board.

Drawings

Fig. 1 is a schematic view of the whole structure of a wall-mounted explosion-proof telephone station of the present invention;

fig. 2 is a schematic structural view of the wall-mounted explosion-proof telephone station protective cover when closed;

fig. 3 is a schematic structural view of the wall-mounted explosion-proof telephone station fixing plate of the present invention.

In the figure: 1. a box body; 2. an upper cover; 3. a keyboard; 4. a phone handle; 5. a control area; 6. fixing screws; 7. a socket head cap screw; 8. an indicator light; 9. a compression nut; 10. a telephone line; 11. a protective cover; 12. connecting the ear plates; 13. a pin shaft; 14. a cable leading-out end; 15. an explosion-proof plug; 16. a noise reduction module; 17. a main board; 18. a fixing sheet; 181. a connecting buckle; 182. a movable buckle; 183. a rotating shaft; 184. pressing a plate; 185. a fixed seat; 186. fastening screws; 187. installing wings; 188. fixing the spring; 19. a power supply module; 20. a fixing plate; 21. and (7) hanging and buckling.

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 work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a wall-mounted explosion-proof telephone station comprises a box body 1, an upper cover 2 and a fixing plate 18, wherein a keyboard 3 and a telephone handle 4 are arranged at the upper end of the upper cover 2, a control area 5 is arranged at the left side of the keyboard 3, an indicator lamp 8 is arranged on the upper surface of the upper cover 2, a telephone line 10 is connected at one end of the telephone handle 4, a gland nut 9 is arranged at one end of the telephone line 10 away from the telephone handle 4, the gland nut 9 is fixedly connected with the left side surface of the box body 1, a connecting ear plate 12 is connected at the left side of the box body 1, a protective cover 11 is connected at one end of the connecting ear plate 12 away from the box body 1, a cable leading-out end 14 is arranged below the box body 1, a noise reduction module 16 and a main board 17 are arranged inside the box body 1, a fixing plate 20 is connected at the lower ends of the noise reduction module 16 and the main board, the front end of the fixing plate 18 is fixedly connected with a connecting buckle 181, two ends of the fixing plate 18 are provided with fastening screws 186, the lower end of the fixing plate 18 is provided with a fixing seat 185, two sides of the fixing seat 185 are fixedly connected with mounting wings 187, the front end of the fixing seat 185 is provided with a rotating shaft 183, the outside of the rotating shaft 183 is rotatably connected with a pressing plate 184, the inner side of the pressing plate 184 is provided with a fixed spring 188, and two ends of the rotating shaft 183 are connected with movable buckles 182.

In the embodiment, the function of the explosion-proof telephone station is diversified through the arranged control area 5, and the main work content of a user is richer; through the arranged protective cover 11, the situation that an operator forgets to close a telephone station door after the call is finished and an accident is easily caused is prevented; the fixing piece 18 structure prevents the internal device and the circuit board from being protected when the telephone station door is not closed tightly and is blown open by wind; cables of the phone handle 4 enter the cavity through a cable inlet on the left side surface of the box body 1 in a filling and sealing mode, and the filling and sealing glue is locked by a compression nut 9 to prevent loosening; through the arranged hanging buckle 21, the explosion-proof telephone can be conveniently fixed on a wall, and the wall hanging capacity of the explosion-proof telephone is better embodied.

Specifically, the keyboard 3 is fixedly connected with the upper cover 2 through an inner hexagon screw 7, the control area 5 is fixedly connected with the upper cover 2 through a fixing screw 6, and a sealing ring is further arranged on the joint surface of the upper cover 2 and the box body 1.

In this embodiment, through hexagon socket head cap screw 7's fixed, mechanical strength is high, better protection internal mechanism, and convenient to detach maintains the change simultaneously, and the sealing washer that upper cover 2 and box 1's composition surface set up can play better guard action.

Specifically, the number of the connecting lug plates 12 is four, and a pin shaft 13 is rotatably connected between the connecting lug plates 12.

In this embodiment, the opening and closing of the protection cover 11 can be facilitated by the pin 13 rotating in the connecting ear plate 12.

Specifically, one end of the fixed spring 188 is fixedly connected to the outer side of the pressing plate 184 through a fixing ring, the other end of the fixed spring 188 is fixedly connected to the box body 1 through a fixing ring, the rotating shaft 183 penetrates through the inside of the pressing plate 184 and is movably connected with the pressing plate 184, the movable buckles 182 are fixed to the rotating shaft 183 through riveting, and the number of the movable buckles 182 is two.

In this embodiment, when the protective cover 11 is closed or closed, the pressing plate 184 is pulled outward to hang the movable buckle 182 on the connecting buckle 181, the pressing plate 184 moves downward under the elastic force of the fixed spring 188 to be tightly connected with the fixed seat 185, and the movable buckle 182 is pulled backward to fix the protective cover 11 and the lower case 1, so as to prevent the protective cover from protecting the internal devices and the circuit board when the door of the telephone station is not closed tightly and is opened by wind.

Specifically, the number of the cable leading-out ends 14 is three, and the wire inlet and outlet holes of each cable leading-out end 14 are provided with an explosion-proof plug 15, and the explosion-proof plugs 15 are fastened and sealed through sealing rings.

In this embodiment, the cable leading-out end 14 on the box body 1 is used for the connection of a customer, when the user needs to use the wire inlet, the explosion-proof plug 15 is unscrewed, and the user can use the cable with the corresponding Glan of the national explosion-proof standard, so that the use of the user is facilitated.

Specifically, the phone handle 4 is made of polyester material, and the resistance of the outer surface of the shell of the phone handle 4 is less than 10⁸Ω。

In the embodiment, the flame-retardant effect is achieved, the explosion-proof requirement of the non-metal shell is met, no static accumulation exists, and the phenomenon of static spark cannot occur.

Specifically, power module 19 passes through bottom surface fixed connection under the inboard of bolt and box 1, and the output of control area 5, keyboard 3, pilot lamp 8, noise reduction module 16 and mainboard 17 all passes through internal circuit and power module 19's input electric connection.

In this embodiment, can realize gathering required conversation sound through the noise reduction module 16 that sets up, filter noise on every side for the noise interference killing feature of explosion-proof words station improves, and speech quality improves to some extent, and mainboard 17, the programming through long-range control end can realize the automatic selection switching on way, and automatic lasts the improvement, and is more intelligent.

The noise reduction module 16 and the power supply module 19 in this embodiment are known technologies that have been disclosed and widely used in daily life.

The utility model discloses a theory of operation and use flow: when the anti-explosion telephone station is used, a worker can select a required command through a button of the control area 5, then the automatic selection switching of the channel can be realized through the programming of the remote control end of the set main board 17, and during the conversation, the required conversation sound can be collected through the set noise reduction module 16, the surrounding noise is filtered, so that the noise anti-interference capability of the anti-explosion telephone station is improved, and the conversation quality is improved; after the use is finished, the protective cover 11 is closed, at this time, the pressing plate 184 is pulled outwards through the fixing plate 18, the movable buckle 182 is hung on the connecting buckle 181, the pressing plate 184 moves downwards under the action of the elastic force of the fixing spring 188 to be tightly connected with the fixed seat 185, the movable buckle 182 is pulled backwards, the protective cover 11 and the lower box body 1 are fixed, and the effects of protecting internal devices and circuit boards when the telephone station door is not tightly closed and is blown open by wind are prevented.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a wall-hanging explosion-proof telephone station, includes box (1), upper cover (2) and stationary blade (18), its characterized in that: the upper end of the upper cover (2) is provided with a keyboard (3) and a phone handle (4), the left side of the keyboard (3) is provided with a control area (5), the upper surface of the upper cover (2) is provided with an indicator lamp (8), one end of the phone handle (4) is connected with a telephone line (10), one end, far away from the phone handle (4), of the telephone line (10) is provided with a gland nut (9), the gland nut (9) is fixedly connected with the left side surface of the box body (1), the left side of the box body (1) is connected with a connecting lug plate (12), one end, far away from the box body (1), of the connecting lug plate (12) is connected with a protective cover (11), a cable leading-out end (14) is arranged below the box body (1), a noise reduction module (16) and a main board (17) are arranged in the box body (1), and the lower ends of the noise reduction module (16) and the main board (17, one side of fixed plate (20) is provided with power module (19), the equal fixed mounting in bottom border hangs knot (21) around box (1), the front end fixedly connected with connector link (181) of stationary blade (18), the both ends of stationary blade (18) are provided with fastening screw (186), fixing base (185) are installed to the lower extreme of stationary blade (18), the both sides fixedly connected with installation wing (187) of fixing base (185), the front end of fixing base (185) is provided with pivot (183), the outside of pivot (183) is rotated and is connected with and presses board (184), the inboard of pressing board (184) is provided with fixed spring (188), the both ends of pivot (183) are connected with movable buckle (182).

2. A wall-mounted explosion-proof telephone station as defined in claim 1, wherein: keyboard (3) are through hexagon socket head cap screw (7) and upper cover (2) fixed connection, through set screw (6) fixed connection between control area (5) and upper cover (2), the composition surface of upper cover (2) and box (1) still is provided with the sealing washer.

3. A wall-mounted explosion-proof telephone station as defined in claim 1, wherein: the number of the connecting lug plates (12) is four, and a pin shaft (13) is rotatably connected between the connecting lug plates (12).

4. A wall-mounted explosion-proof telephone station as defined in claim 1, wherein: one end of the fixed spring (188) is fixedly connected to the outer side of the pressing plate (184) through a fixed ring, the other end of the fixed spring (188) is fixedly connected to the box body (1) through the fixed ring, the rotating shaft (183) penetrates through the inner portion of the pressing plate (184) and is movably connected with the pressing plate (184), the movable buckle (182) is fixed with the rotating shaft (183) through riveting, and the number of the movable buckle (182) is two.

5. A wall-mounted explosion-proof telephone station as defined in claim 1, wherein: the number of the cable leading-out ends (14) is three, the wire inlet and outlet holes of each cable leading-out end (14) are provided with anti-explosion plugs (15), and the anti-explosion plugs (15) are fastened and sealed through sealing rings.

6. A wall-mounted explosion-proof telephone station as defined in claim 1, wherein: the phone handle (4) is made of polyester materials, and the resistance of the outer surface of the shell of the phone handle (4) is smaller than 108 omega.

7. A wall-mounted explosion-proof telephone station as defined in claim 1, wherein: the power module (19) is fixedly connected with the inner lower bottom surface of the box body (1) through bolts, and the output ends of the control area (5), the keyboard (3), the indicator lamp (8), the noise reduction module (16) and the main board (17) are electrically connected with the input end of the power module (19) through an internal circuit.