CN201956017U - Mining essential liquid crystal display device - Google Patents
Mining essential liquid crystal display device Download PDFInfo
- Publication number
- CN201956017U CN201956017U CN201020644817XU CN201020644817U CN201956017U CN 201956017 U CN201956017 U CN 201956017U CN 201020644817X U CN201020644817X U CN 201020644817XU CN 201020644817 U CN201020644817 U CN 201020644817U CN 201956017 U CN201956017 U CN 201956017U
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- CN
- China
- Prior art keywords
- protecgulum
- housing
- sealing
- liquid crystal
- front cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a mining essential liquid crystal display device, comprising a liquid crystal display, more than two cable plug-in joints are in a sealing installation at the rear part of a housing, the front part of the housing is in a sealing connection with a front cover, the front cover is provided with an external flange and a window, a transparent cover is in a sealing installation at the window of the front cover, the front cover, the transparent cover and the housing form a sealing explosion-proof chamber, a liquid crystal display disposed in the sealing chamber is installed on a display installation plate, and is relative to the transparent cover, the display installation plate is connected with the front cover, a circuit board disposed in the sealing chamber is installed on the display installation plate or the front cover via more than two insulation columns. The mining essential liquid crystal display device is characterized by simple wiring and good installation generality, and is suitable for use in coal mine downhole environment with explosive gas mixtures such as methane, coal dust, etc., and non-coal mines and severe environment and conditions such as coal preparation plants, steel works, electric power plants, ports and docks, etc.
Description
Technical field
The utility model relates to a kind of mining intrinsic type LCD device, belongs to be used for the colliery and to have the dangerous place with a potential explosion monitoring technical field.
Background technology
In the mine that contains methane explosion risk gas and coal dust, be the basic parameter of explosion-proof vehicle to be monitored and early warning in real time by various instrument.It mainly is that several parameters such as gas bearing capacity, the exhaust treatment system to diesel engine, lubricating system, casing surface temperature at Minepit environment carry out real-time follow-up and detection that basic parameter detects.For reaching the measurement result of conveniently observing various instrument; each instrument offers LCD with monitored signal with digital form; by LCD the operator is come into plain view and understand the state of each parameter, remind operating personnel to note the people, thus the safety of protection environment and system.But because more to the parameter of being monitored, two or more LCD therefore need installing have not only increased on-the-spot wiring workload, and have been easy to cause wiring to obscure.Moreover, also many LCD are installed because of needs, owing to there is not unified installation site, cause the display discharging loose.In addition, because the circuit board module and the wiring thereof of each LCD all are exposed to the outside, reduced the security performance of using, install as circuit board module being installed in special-purpose housing, further increase the complicacy of installation, wiring again, make small product size, weight and manufacturing cost all can't reduce.
Summary of the invention
The purpose of this utility model provides a kind of rational in infrastructure, and the installation versatility is good, and wiring is simple, can be applicable to the mining intrinsic type LCD device of work under explosive gas mixture and the wet environment.
The utility model is that the technical scheme that achieves the above object is: a kind of mining intrinsic type LCD device, comprise LCD, it is characterized in that: the housing rear seal is equipped with plural cable and patches joint, housing front end and protecgulum are tightly connected, protecgulum has outside flange dish and window, the translucent cover sealing is installed in the window place of protecgulum, protecgulum, translucent cover and housing constitute annular seal space, the LCD that is arranged in the annular seal space is installed on the display installing plate, and it is relative with translucent cover, the display installing plate is connected with protecgulum, and the circuit board module that is arranged in the annular seal space is installed on display installing plate or the protecgulum by plural insulation column.
LCD of the present utility model is installed in the annular seal space of the airtight waterproof that is made of housing, protecgulum and translucent cover by the sealing of display installing plate, circuit board module also is installed in the sealing chamber simultaneously, because each wiring all is arranged in the seal chamber, so can reach the degree of protection that requires, and satisfy the job requirement of explosive gas mixture environment such as methane, coal dust are arranged under the coal mine.The utility model is installed in LCD and corresponding circuit board module in the seal chamber that is made of protecgulum and housing and translucent cover, the housing rear portion is provided with cable and patches joint, therefore can be with on the various signal cable line attachment board components, structure is closed letter, convenience quick for installation, also improved simultaneously the versatility that LCD is installed greatly, flexible for installation, be convenient to the laying of complete machine, wiring is simple, be easily installed in the driving of explosion-proof vehicle, and be convenient in the future maintaining work.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional structure synoptic diagram of the A-A of Fig. 1.
Fig. 3 is that the B of Fig. 2 is to structural representation.
Wherein: 1-protecgulum, 1-1-outside flange dish, 1-2-mounting hole, 1-3-mounting groove, 1-4-window, the 2-translucent cover, the 3-securing member, the 4-cable patches joint, 5-housing, 6-circuit board module, the 7-LCD, 8-insulation column, 9-display installing plate, 9-1-convex shoulder, 10-O-ring seal.
Embodiment
See shown in Fig. 1～3, mining intrinsic type LCD device of the present utility model, comprise LCD 7, housing 5, circuit board module 6, display installing plate 9, protecgulum 1 and translucent cover 2, this LCD 7 is an existing product, housing 5 rear seal are equipped with plural cable and patch joint 4, see shown in Figure 3, three cables can be installed patch joint 4, many cables can be passed cable and patch on the joint 4 line attachment board components 6, show the various parameters that monitor by LCD 7.See that 5 front ends of the utility model housing shown in Fig. 1,2 and protecgulum 1 are tightly connected, protecgulum 1 has outside flange dish 1-1 and window 1-4, and this outside flange terminal pad is provided with mounting hole 1-2, to be easily installed in the pilothouse.The periphery that protecgulum 1 is positioned at outside flange dish 1-1 rear portion is provided with seal groove, in O-ring seal 10 seal mounting grooves, O-ring seal 10 and housing 5 are joined and reach the effect of water-tight, ring flange on the housing 5 is connected with protecgulum 1 by securing member 3, translucent cover 2 sealings are installed in the window 1-4 place of protecgulum 1, LCD 7 is installed on the display installing plate 9, protecgulum 1, translucent cover 2 and housing 5 constitute the annular seal space of airtight waterproof, the LCD 7 that is arranged in the annular seal space is installed on the display installing plate 9, and it is relative with translucent cover 2, LCD 7 can adopt securing member to be connected with display installing plate 9, for reducing installation volume, the display surface of LCD 7 is embedded in display installing plate 9 apertures, and display installing plate 9 is connected with protecgulum 1 by securing member 3.Be simplified structure, the convenient installation, protecgulum 1 window 1-4 inboard is provided with the mounting groove 1-3 of annular, and the bottom land of mounting groove 1-3 is provided with seal groove, and O-ring seal 10 is installed in the seal groove, translucent cover 2 is arranged in the mounting groove 1-3 of protecgulum 1, display installing plate 9 has convex shoulder 9-1, and display installing plate 9 is connected on the protecgulum 1 by securing member 3, and the convex shoulder 9-1 of display installing plate 9 is pressed in translucent cover 2, translucent cover 2 and O-ring seal 10 are joined, guarantee the sealing property that translucent cover 2 is connected with protecgulum 1.
See shown in Figure 2, the utility model circuit board module 6 is arranged in the annular seal space, circuit board module 6 is installed on display installing plate 9 or the protecgulum 1 by plural insulation column 8, this insulation column 8 can be made a side with the circuit board of circuit board module 6, or adopt independently pillar, this insulation column 8 is made by insulating material, and circuit board module 6 can be installed on protecgulum 1 or the display installing plate 9 reliably, safely.LCD 7 of the present utility model is connected by signal wire with each control device, makes operating personnel in time understand variator bar operating position duty, light, engine, delivery temperature, cooling water temperature, each measuring point temperature, chilled water, vehicle rotating speed, the pressure wet goods of explosion-proof vehicle.
Claims (3)
1. mining intrinsic type LCD device, comprise LCD (7), it is characterized in that: housing (5) rear seal is equipped with plural cable and patches joint (4), housing (5) front end and protecgulum (1) are tightly connected, protecgulum (1) has outside flange dish (1-1) and window (1-4), translucent cover (2) sealing is installed in the window (1-4) of protecgulum (1) and locates, protecgulum (1), translucent cover (2) and housing (5) constitute annular seal space, the LCD (7) that is arranged in the annular seal space is installed on the display installing plate (9), and it is relative with translucent cover (2), display installing plate (9) is connected with protecgulum (1), and the circuit board module (6) that is arranged in the annular seal space is installed on display installing plate (9) or the protecgulum (1) by the insulation column more than two (8).
2. mining intrinsic type LCD device according to claim 1, it is characterized in that: window (1-4) inboard of described protecgulum (1) is provided with the mounting groove (1-3) of annular, the bottom land of mounting groove (1-3) is provided with seal groove, O-ring seal (10) is installed in the seal groove, translucent cover (2) is arranged in protecgulum (1) mounting groove (1-3), display installing plate (9) is connected on the protecgulum (1) by securing member (3), and the convex shoulder (9-1) of display installing plate (9) is pressed in translucent cover (2).
3. mining intrinsic type LCD device according to claim 1, it is characterized in that: the periphery that described protecgulum (1) is positioned at outside flange dish (1-1) rear portion is provided with seal groove, in O-ring seal (10) seal mounting groove, the ring flange on the housing (5) is connected with protecgulum (1) by securing member (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020644817XU CN201956017U (en) | 2010-12-07 | 2010-12-07 | Mining essential liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020644817XU CN201956017U (en) | 2010-12-07 | 2010-12-07 | Mining essential liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956017U true CN201956017U (en) | 2011-08-31 |
Family
ID=44500121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020644817XU Expired - Fee Related CN201956017U (en) | 2010-12-07 | 2010-12-07 | Mining essential liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956017U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328014A (en) * | 2016-10-18 | 2017-01-11 | 贝兹维仪器(苏州)有限公司 | Wireless driller displayer |
| CN106376190A (en) * | 2016-10-19 | 2017-02-01 | 贝兹维仪器(苏州)有限公司 | Driller display shell |
| CN106413323A (en) * | 2016-10-19 | 2017-02-15 | 贝兹维仪器(苏州)有限公司 | Sealing structure for box body and cover plate of driller display |
-
2010
- 2010-12-07 CN CN201020644817XU patent/CN201956017U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328014A (en) * | 2016-10-18 | 2017-01-11 | 贝兹维仪器(苏州)有限公司 | Wireless driller displayer |
| CN106376190A (en) * | 2016-10-19 | 2017-02-01 | 贝兹维仪器(苏州)有限公司 | Driller display shell |
| CN106413323A (en) * | 2016-10-19 | 2017-02-15 | 贝兹维仪器(苏州)有限公司 | Sealing structure for box body and cover plate of driller display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20151207 |
|
| EXPY | Termination of patent right or utility model |