CN113840485A - A miniaturized explosion-proof button operating means for explosion-proof regulator cubicle - Google Patents
A miniaturized explosion-proof button operating means for explosion-proof regulator cubicle Download PDFInfo
- Publication number
- CN113840485A CN113840485A CN202111207078.7A CN202111207078A CN113840485A CN 113840485 A CN113840485 A CN 113840485A CN 202111207078 A CN202111207078 A CN 202111207078A CN 113840485 A CN113840485 A CN 113840485A
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- Prior art keywords
- explosion
- proof
- box cover
- cavity
- key
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/81—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by electrical connections to external devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/86—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the casing, e.g. sealed casings or casings reducible in size
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Push-Button Switches (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a miniaturized explosion-proof key operation device for an explosion-proof electrical cabinet, belonging to the technical field of explosion-proof keys; comprises a mounting bracket, an explosion-proof cavity and an explosion-proof box cover; the back of the explosion-proof cavity is connected with the mounting bracket, the interior of the cavity is connected with the relay board through a conversion screw, and the lower part of the cavity is connected with the explosion-proof cable leading-in device through a cable mounting hole; an observation hole and a key hole are formed in the end face of the explosion-proof box cover, explosion-proof glass is embedded and adhered to the inner bottom face of the observation hole, the explosion-proof lamp panel is attached to the explosion-proof glass and connected into the explosion-proof box cover, and the explosion-proof key panel consists of a button circuit board and an explosion-proof operating rod and is connected to the inner wall of the explosion-proof box cover through the corresponding key hole of the explosion-proof operating rod; the relay board, the explosion-proof lamp board and the explosion-proof key board are electrically connected through flat cables. According to the invention, the control function of the explosion-proof electrical cabinet is replaced by the small-sized exquisite and high-protection explosion-proof key operation module, so that the use space of the electrical cabinet door and the cavity is reduced, and the miniaturization of the explosion-proof electrical cabinet is realized.
Description
Technical Field
The invention relates to a key operation device, in particular to a miniaturized explosion-proof key operation device for an explosion-proof electrical cabinet, and belongs to the technical field of explosion-proof keys.
Background
In inflammable and explosive places, the control and monitoring of an explosion-proof electrical cabinet are generally realized by an explosion-proof button and an explosion-proof indicator lamp of a cabinet door, however, the installation distance between the explosion-proof button and the explosion-proof indicator lamp is large, and the explosion-proof electrical cabinet is large in appearance, heavy in mass, high in cost and difficult to install.
The conventional explosion-proof lamp knob also has the following problems: 1) the explosion-proof lamp button is provided with a cylindrical boss, so that the cleaning is troublesome and the cleaning is inconvenient; the protection level of the explosion-proof lamp button is low, and on-site rain and water spray can enter the electrical cabinet through the internal gap of the explosion-proof lamp button to affect the use; 2) the micro switch in the electronic component is small, but has small bearing current, cannot be applied to an electrical control circuit, belongs to a non-explosion-proof component, and cannot be directly applied to an explosion-proof place.
At present, all electrical components are under the background of miniaturization and refinement development, so an explosion-proof key operation module is needed to solve the problem of miniaturization of an explosion-proof electrical cabinet.
Disclosure of Invention
The purpose of the invention is: the defects in the prior art are overcome, the miniaturized explosion-proof key operation device for the explosion-proof electrical cabinet is provided, the explosion-proof key operation module with small size, delicacy and high protection replaces the control function of the explosion-proof electrical cabinet, the use space of an electrical cabinet door and a cavity is reduced, and therefore the miniaturization of the explosion-proof electrical cabinet is achieved.
In order to achieve the purpose, the invention adopts the following technical scheme: a miniaturized explosion-proof key operation device for an explosion-proof electrical cabinet comprises a mounting bracket, an explosion-proof cavity, an explosion-proof box cover, a relay board, an explosion-proof lamp board and an explosion-proof key board, wherein the relay board, the explosion-proof lamp board and the explosion-proof key board are arranged in the explosion-proof cavity and the explosion-proof box cover; the back of the explosion-proof cavity is connected with a mounting bracket, the interior of the cavity is connected with a relay board through a conversion screw, the lower part of the cavity is connected with an explosion-proof cable leading-in device through a cable mounting hole, and a loop control relay, a power supply module and a processor are integrated on the relay board; the end face of the explosion-proof box cover is provided with an observation hole and a key hole, explosion-proof glass is embedded and adhered on the inner bottom surface of the observation hole, the explosion-proof lamp panel is attached to the explosion-proof glass and fixedly connected in the explosion-proof box cover, and the explosion-proof key panel consists of a button circuit board and an explosion-proof operating rod and is fixedly connected on the inner wall of the explosion-proof box cover through the corresponding key hole of the explosion-proof operating rod; and the relay board, the explosion-proof lamp board and the explosion-proof key board are electrically connected through flat cables.
The explosion-proof lamp panel consists of an indicator lamp, a lamp bracket, a glass pressing plate and pan head screws; the lamp support and the glass pressing plate are correspondingly provided with lamp holes and screw holes, the indicator lamp is fixedly connected onto the lamp support through the lamp holes, and the corresponding screw holes on the lamp support and the glass pressing plate are fixedly connected onto the inner wall of the explosion-proof box cover through pan head screws.
And a sealing gasket is also arranged between the glass pressing plate and the inner wall of the explosion-proof box cover, and the sealing gasket is provided with screw holes corresponding to the lamp bracket and the glass pressing plate.
The explosion-proof cavity is movably connected with the outer side of the explosion-proof box cover through hinges, and two sides of each hinge are fixed in groove bolt holes formed in the outer sides of the explosion-proof cavity and the explosion-proof box cover respectively.
The periphery of the end face of the explosion-proof box cover is provided with a chamfer inclined plane, a plurality of thread counter bores are uniformly distributed on the chamfer inclined plane and correspondingly extend to tap the end face of the explosion-proof cavity, and the explosion-proof box cover is fastened on the explosion-proof cavity in the thread counter bores through cylindrical screw matching.
And a sealing groove is arranged on the connecting end surface of the explosion-proof box cover and the explosion-proof cavity, an O-shaped sealing ring is connected in the sealing groove, and the sealing groove is positioned on the inner side of the threaded counter bore.
And the O-shaped sealing ring and the sealing groove as well as the joint surface of the explosion-proof glass and the explosion-proof box cover are fixedly connected by epoxy resin adhesive.
And an invagination plane is arranged on the end face panel of the explosion-proof box cover, and the invagination plane is connected with a PC surface sticker.
The invention has the beneficial effects that: 1) the distance between the explosion-proof operating rod on the explosion-proof key board and the indicator lamp on the explosion-proof lamp board can be reduced to 10-16 mm, the module volume is reduced, the weight of the device is reduced, and the design purpose of a miniaturized electric cabinet body is realized.
2) The relay board in the explosion-proof cavity of the device can receive and calculate the key switch signal on the key board, and transmits the logic function to the external electric control loop through the relay, thereby realizing that the small current of the microswitch is changed into the large current of the relay to be applied to industrial control, and solving the problem that the microswitch can not be directly applied to explosion-proof places.
3) According to the device, the sealing ring is arranged between the explosion-proof cavity and the explosion-proof box cover, and the PC waterproof surface sticker is arranged on the panel of the explosion-proof box cover, so that the effects of explosion prevention, corrosion prevention and sealing can be achieved simultaneously; the panel of the explosion-proof box cover is of a parallel and level structure and has the effects of being convenient to clean and beautify the interface.
Drawings
FIG. 1 is a schematic diagram of an explosive structure of the apparatus of the present invention;
FIG. 2 is a front cross-sectional view of the apparatus of the present invention in the orientation shown in FIG. 1;
FIG. 3 is a top cross-sectional view of the apparatus of the present invention in the orientation shown in FIG. 1.
In the figure, 1-a mounting bracket, 2-an explosion-proof cavity, 3-an explosion-proof box cover, 301-an observation hole, 302-a key hole, 303-a chamfer inclined plane, 304-a thread counter bore, 305-a sealing groove, 306-an invagination plane, 4-a relay board, 5-an explosion-proof lamp board, 6-an explosion-proof key board, 7-a conversion screw, 8-an explosion-proof cable leading-in device, 9-explosion-proof glass, 10-a button circuit board, 11-an explosion-proof operating rod, 12-an indicator lamp, 13-a lamp bracket, 14-a glass pressing plate, 15-a pan head screw, 16-a sealing gasket, 17-a hinge, 18-a cylindrical screw, a 19-O-type sealing ring and 20-an explosion-proof grounding sheet.
Detailed Description
The invention is further explained below with reference to the figures and the embodiments.
Example (b): as shown in fig. 1-3, the miniaturized explosion-proof key operation device for an explosion-proof electrical cabinet provided by the invention comprises a mounting bracket 1, an explosion-proof cavity 2, an explosion-proof box cover 3, and a relay board 4, an explosion-proof lamp board 5 and an explosion-proof key board 6 which are connected in the explosion-proof cavity 2 and the explosion-proof box cover 3; the mounting bracket 1 is a middle convex bracket and is fixedly connected to the back of the explosion-proof cavity 2 through a screw; the interior of the explosion-proof cavity 2 is connected with the relay board 4 through a copper conversion screw 7, the interior of the cavity is also connected with an explosion-proof grounding sheet 20 through an explosion-proof bolt, and the lower part of the explosion-proof grounding sheet is connected with an explosion-proof cable lead-in device 8 through a cable mounting hole; the outer sides of the explosion-proof cavity 2 and the explosion-proof box cover 3 are movably connected through hinges 17, and two sides of each hinge 17 are respectively fixed in groove bolt holes formed in the outer sides of the explosion-proof cavity 2 and the explosion-proof box cover 3.
A loop control relay, a power supply module and a processor are integrated on the relay board 4, each relay is provided with two normally open and normally closed channels, the loading capacity of a relay contact is 8A/250VAC, and the maximum switching voltage is 440VAC/300 VDC; the integrated power module has the functions of short circuit, overcurrent and overvoltage protection, and can normally work within the input voltage range of 110 plus 250 VAC; the integrated processor has a logical operation function.
An observation hole 301 and a key hole 302 are penetratingly formed in the end face of the explosion-proof box cover 3, explosion-proof glass 9 is embedded and adhered to the inner bottom face of the observation hole 301, the explosion-proof lamp panel 5 is attached to the explosion-proof glass 9 and fixedly connected into the explosion-proof box cover 3, and the explosion-proof key panel 6 is composed of a button circuit board 10 and an explosion-proof operating rod 11 and is fixedly connected to the inner wall of the explosion-proof box cover 3 through the explosion-proof operating rod 11 corresponding to the key hole 302; the relay board 4, the explosion-proof lamp board 5 and the explosion-proof key board 6 are electrically connected through flat cables.
The explosion-proof lamp panel 5 consists of an indicator lamp 12, a lamp bracket 13, a glass pressing plate 14 and pan head screws 15; the lamp bracket 13 and the glass pressing plate 14 are respectively and correspondingly provided with a lamp hole and a screw hole, the indicator lamp 12 is fixedly connected to the lamp bracket 13 through the lamp hole, and the lamp bracket 13 and the glass pressing plate 14 are fixedly connected to the inner wall of the explosion-proof box cover 3 through the corresponding screw holes together through pan head screws 15; a sealing gasket 16 is connected between the glass pressing plate 14 and the inner wall of the explosion-proof box cover 3, and screw holes corresponding to the lamp bracket 13 and the glass pressing plate 14 are formed on the sealing gasket 16.
The periphery of the end face of the explosion-proof box cover 3 is provided with a chamfer inclined plane 303, a plurality of thread counter bores 304 are uniformly distributed on the chamfer inclined plane 303 and correspondingly extend to tap the end face of the explosion-proof cavity 2, and the explosion-proof box cover 3 is fastened on the explosion-proof cavity 2 in the thread counter bores 304 through the matching of cylindrical screws 18.
A sealing groove 305 is arranged on the connecting end surface of the explosion-proof box cover 3 and the explosion-proof cavity 2, an O-shaped sealing ring 19 is connected in the sealing groove 305, and the sealing groove 305 is positioned at the inner side of the thread counter bore 304; an invagination plane 306 is arranged on the end face panel of the explosion-proof box cover 3, and the invagination plane 306 is connected with a PC surface sticker.
The O-ring 19 and the sealing groove 305, and the joint surface of the explosion-proof glass 9 and the explosion-proof box cover 3 are connected and fixed by epoxy resin adhesive.
The explosion-proof glass 9 and the explosion-proof box cover 3 form an explosion-proof adhesive structure, and the width of a bonding joint surface is more than 10 mm; the explosion-proof operating rod 11 and the key hole on the explosion-proof box cover 3 form an explosion-proof structure, the width L of an explosion-proof joint surface is more than 12.5mm, and the clearance ic is less than 0.15 mm; the depth of an invagination plane on the explosion-proof box cover 3 is 1mm, a PC surface sticker is arranged, and a contact surface of the PC surface sticker and the explosion-proof cavity 2 forms an explosion-proof structure, the width L of an explosion-proof joint surface is more than 12.5mm, L is more than 8mm, and the clearance ic is less than 0.15 mm; the explosion-proof cavity 2 and the explosion-proof cable lead-in device 8 form an explosion-proof structure, the effective length of a threaded joint surface is larger than 9mm, and the number of effective meshing buckles is larger than 5.
In the device, a pan head screw 15 adopts a cross-recessed pan head screw of M3X 15, a cylindrical screw 18 adopts an inner hexagonal cylindrical screw of M4X 20, a sealing gasket 15 adopts a rubber material, an O-shaped sealing ring 19 adopts a nitrile rubber material, and an explosion-proof surface is coated with anti-rust oil 204-1 in the assembling process; the explosion-proof cavity 2 and the explosion-proof box cover 3 are both made of aluminum materials, and anodic oxidation treatment is carried out after sand blasting is carried out on the surfaces of the explosion-proof cavity and the explosion-proof box cover.
The working principle is as follows:
the device of the invention adopts the bulge button on the PC surface paste to operate, drives the explosion-proof operating rod 11 to slightly move downwards, and the micro switch on the explosion-proof key board 6 acts to change the operation into a switching value signal on the relay board 4 to be output to a control loop of an explosion-proof electrical cabinet, thereby realizing electrical control, and the logical operation in the relay board 4 lights the indicator lamp 12 on the explosion-proof lamp board 5, and the working state can be monitored by the indicator lamp 12.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides an explosion-proof button operating means of miniaturization for explosion-proof regulator cubicle which characterized in that: the explosion-proof key board comprises a mounting bracket (1), an explosion-proof cavity (2), an explosion-proof box cover (3), and a relay board (4), an explosion-proof lamp board (5) and an explosion-proof key board (6) which are arranged in the explosion-proof cavity (2) and the explosion-proof box cover (3); the back of the explosion-proof cavity (2) is connected with the mounting bracket (1), the interior of the cavity is connected with the relay board (4) through a conversion screw (7), the lower part of the cavity is connected with the explosion-proof cable lead-in device (8) through a cable mounting hole, and the relay board (4) is integrated with a loop control relay, a power supply module and a processor; an observation hole (301) and a key hole (302) are formed in the end face of the explosion-proof box cover (3), explosion-proof glass (9) is embedded and adhered to the inner bottom face of the observation hole (301), an explosion-proof lamp panel (5) is adhered to the explosion-proof glass (9) and fixedly connected into the explosion-proof box cover (3), and an explosion-proof key plate (6) consists of a button circuit board (10) and an explosion-proof operating rod (11) and is fixedly connected onto the inner wall of the explosion-proof box cover (3) through the explosion-proof operating rod (11) corresponding to the key hole (302); and the relay board (4), the explosion-proof lamp panel (5) and the explosion-proof key board (6) are electrically connected through flat cables.
2. The miniaturized explosion-proof key operating device for the explosion-proof electrical cabinet as claimed in claim 1, wherein: the explosion-proof lamp panel (5) consists of an indicator lamp (12), a lamp bracket (13), a glass pressing plate (14) and pan head screws (15); the lamp bracket (13) and the glass pressing plate (14) are correspondingly provided with lamp holes and screw holes, the indicator lamp (12) is fixedly connected onto the lamp bracket (13) through the lamp holes, and the corresponding screw holes on the lamp bracket (13) and the glass pressing plate (14) are fixedly connected onto the inner wall of the explosion-proof box cover (3) through pan head screws (15).
3. The miniaturized explosion-proof key operating device for the explosion-proof electrical cabinet as claimed in claim 2, wherein: a sealing gasket (16) is arranged between the glass pressing plate (14) and the inner wall of the explosion-proof box cover (3), and screw holes corresponding to the lamp bracket (13) and the glass pressing plate (14) are formed in the sealing gasket (16).
4. The miniaturized explosion-proof key operating device for the explosion-proof electrical cabinet as claimed in claim 1, wherein: the explosion-proof chamber body (2) is movably connected with the outer side of the explosion-proof box cover (3) through a hinge (17), and two sides of the hinge (17) are respectively fixed in groove bolt holes formed in the outer sides of the explosion-proof chamber body (2) and the explosion-proof box cover (3).
5. The miniaturized explosion-proof key operating device for the explosion-proof electrical cabinet as claimed in claim 1, wherein: the anti-explosion box cover is characterized in that a chamfer inclined plane (303) is arranged on the periphery of the end face of the anti-explosion box cover (3), a plurality of thread counter bores (304) are uniformly distributed on the chamfer inclined plane (303) and correspondingly extend to tap the end face of the anti-explosion cavity (2), and the anti-explosion box cover (3) is fastened on the anti-explosion cavity (2) in the thread counter bores (304) through the matching of cylindrical screws (18).
6. The miniaturized explosion-proof key operation device for the explosion-proof electrical cabinet as claimed in claim 5, wherein: a sealing groove (305) is formed in the connecting end face of the explosion-proof box cover (3) and the explosion-proof cavity (2), an O-shaped sealing ring (19) is connected into the sealing groove (305), and the sealing groove (305) is located on the inner side of the threaded counter bore (304).
7. The miniaturized explosion-proof key operation device for the explosion-proof electrical cabinet as claimed in claim 6, wherein: and the O-shaped sealing ring (19) and the sealing groove (305) and the joint surface of the explosion-proof glass (9) and the explosion-proof box cover (3) are fixedly connected by epoxy resin adhesive.
8. The miniaturized explosion-proof key operating device for the explosion-proof electrical cabinet as claimed in claim 1, wherein: an invagination plane (306) is arranged on an end face panel of the explosion-proof box cover (3), and the invagination plane (306) is connected with a PC surface sticker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111207078.7A CN113840485A (en) | 2021-10-18 | 2021-10-18 | A miniaturized explosion-proof button operating means for explosion-proof regulator cubicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111207078.7A CN113840485A (en) | 2021-10-18 | 2021-10-18 | A miniaturized explosion-proof button operating means for explosion-proof regulator cubicle |
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| Publication Number | Publication Date |
|---|---|
| CN113840485A true CN113840485A (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111207078.7A Pending CN113840485A (en) | 2021-10-18 | 2021-10-18 | A miniaturized explosion-proof button operating means for explosion-proof regulator cubicle |
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| CN (1) | CN113840485A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201185141Y (en) * | 2008-03-28 | 2009-01-21 | 华荣集团有限公司 | Explosion-proof push button core and explosion-proof push button thereof |
| CN201187753Y (en) * | 2008-05-09 | 2009-01-28 | 创正防爆电器有限公司 | Explosion-proof lamp |
| CN201237981Y (en) * | 2008-08-07 | 2009-05-13 | 天津华宁电子有限公司 | Dead-stop closedown push button |
| CN201429991Y (en) * | 2009-06-25 | 2010-03-24 | 浙江正泰中自控制工程有限公司 | Explosion-proof digital display instrument box design |
| CN102365009A (en) * | 2011-11-22 | 2012-02-29 | 郑州煤矿机械集团股份有限公司 | Electro-hydraulic control system server chasis of thin-seam hydraulic support |
| CN204407732U (en) * | 2015-03-16 | 2015-06-17 | 宗亮 | A kind of explosion-proof tank with enforcement functionalities |
| CN204697407U (en) * | 2015-05-09 | 2015-10-07 | 乔钦兴 | A kind of explosion-proof electric control box |
| CN206283120U (en) * | 2016-12-21 | 2017-06-27 | 程延昭 | A kind of jettron cabinet with explosion prevention function |
| CN206923203U (en) * | 2017-07-19 | 2018-01-23 | 天津华宁电子有限公司 | A kind of mining intrinsic safety type control device |
| CN207266470U (en) * | 2017-08-29 | 2018-04-20 | 江苏冠奕达防爆电器有限公司 | A kind of branch cylindricality explosion proof and corrosion protection operation post |
| EP3249672B1 (en) * | 2016-05-27 | 2019-03-27 | Andrea Paone | Explosion-proof push-button panel for remote electric control via cable |
| CN210428724U (en) * | 2019-11-11 | 2020-04-28 | 青岛中加特电气股份有限公司 | Indication module of explosion-proof equipment |
| CN210793219U (en) * | 2019-11-12 | 2020-06-19 | 徐州泰若电器科技有限公司 | Mobile audible and visual alarm for locomotive |
| CN112483373A (en) * | 2020-12-28 | 2021-03-12 | 郑州永邦机器有限公司 | Control device for explosion-proof air compressor |
| CN213092710U (en) * | 2020-10-22 | 2021-04-30 | 苏州瑞来特思机械设备有限公司 | Explosion-proof display |
| CN213402356U (en) * | 2020-11-12 | 2021-06-08 | 杭州华智电器成套设备有限公司 | On-spot explosion-proof maintenance case with high security performance |
-
2021
- 2021-10-18 CN CN202111207078.7A patent/CN113840485A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201185141Y (en) * | 2008-03-28 | 2009-01-21 | 华荣集团有限公司 | Explosion-proof push button core and explosion-proof push button thereof |
| CN201187753Y (en) * | 2008-05-09 | 2009-01-28 | 创正防爆电器有限公司 | Explosion-proof lamp |
| CN201237981Y (en) * | 2008-08-07 | 2009-05-13 | 天津华宁电子有限公司 | Dead-stop closedown push button |
| CN201429991Y (en) * | 2009-06-25 | 2010-03-24 | 浙江正泰中自控制工程有限公司 | Explosion-proof digital display instrument box design |
| CN102365009A (en) * | 2011-11-22 | 2012-02-29 | 郑州煤矿机械集团股份有限公司 | Electro-hydraulic control system server chasis of thin-seam hydraulic support |
| CN204407732U (en) * | 2015-03-16 | 2015-06-17 | 宗亮 | A kind of explosion-proof tank with enforcement functionalities |
| CN204697407U (en) * | 2015-05-09 | 2015-10-07 | 乔钦兴 | A kind of explosion-proof electric control box |
| EP3249672B1 (en) * | 2016-05-27 | 2019-03-27 | Andrea Paone | Explosion-proof push-button panel for remote electric control via cable |
| CN206283120U (en) * | 2016-12-21 | 2017-06-27 | 程延昭 | A kind of jettron cabinet with explosion prevention function |
| CN206923203U (en) * | 2017-07-19 | 2018-01-23 | 天津华宁电子有限公司 | A kind of mining intrinsic safety type control device |
| CN207266470U (en) * | 2017-08-29 | 2018-04-20 | 江苏冠奕达防爆电器有限公司 | A kind of branch cylindricality explosion proof and corrosion protection operation post |
| CN210428724U (en) * | 2019-11-11 | 2020-04-28 | 青岛中加特电气股份有限公司 | Indication module of explosion-proof equipment |
| CN210793219U (en) * | 2019-11-12 | 2020-06-19 | 徐州泰若电器科技有限公司 | Mobile audible and visual alarm for locomotive |
| CN213092710U (en) * | 2020-10-22 | 2021-04-30 | 苏州瑞来特思机械设备有限公司 | Explosion-proof display |
| CN213402356U (en) * | 2020-11-12 | 2021-06-08 | 杭州华智电器成套设备有限公司 | On-spot explosion-proof maintenance case with high security performance |
| CN112483373A (en) * | 2020-12-28 | 2021-03-12 | 郑州永邦机器有限公司 | Control device for explosion-proof air compressor |
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