CN2802448Y - Eplosion-proof digital display meter - Google Patents
Eplosion-proof digital display meter Download PDFInfo
- Publication number
- CN2802448Y CN2802448Y CN 200520085416 CN200520085416U CN2802448Y CN 2802448 Y CN2802448 Y CN 2802448Y CN 200520085416 CN200520085416 CN 200520085416 CN 200520085416 U CN200520085416 U CN 200520085416U CN 2802448 Y CN2802448 Y CN 2802448Y
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof
- panel
- watchcase
- display
- 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 an explosion-proof digital display meter, which is composed of an explosion-proof meter shell, explosion-proof panels, an LED display, operating keys, cable inlets and a circuit board for measurement and display, wherein the explosion-proof meter shell and the explosion-proof panels are together combined as a fully closed structure, the upper and the lower ends of a back panel of the explosion-proof meter shell are provided with hanging rings, a lower panel is provided with the cable inlets, and the circumference of the front side of the explosion-proof meter shell is provided with bolt holes used for fixing the explosion-proof panels. The circuit board for measurement and display, the LED display and micromotion keys are arranged in the explosion-proof meter shell, and the operating keys corresponding to the micromotion keys are arranged on the explosion-proof panels. Fixed bolt holes corresponding to the bolt holes in the circumference of explosion-proof meter shell are arranged in the circumference of the explosion-proof panels, bolts are used for screwing and fixing to ensure the explosion-proof digital display meter is sealed. The upper parts of the explosion-proof panels are provided with toughened glass display windows, and the middle parts of the explosion-proof panels are provided with the operating keys. The utility model can be utilized in 2B and 2A combustible and explosive areas, manufacturing cost is reduced, particularly the expenses of installation, operation and maintenance are reduced, and reliability is enhanced.
Description
Technical field:
The utility model relates to explosion-proof numeric display unit, relates in particular to explosion-proof digital displaying meter.
Background technology:
In inflammable and explosive district technical parameters such as temperature, humidity, pressure, liquid level, flow, potential of hydrogen, electric current and voltage are measured, usually adopt following two kinds of methods: the one, adopt Flameproof box: non-explosion-proof common digital display meter is installed in the explosion-proof tank that a complete steel plate airtight, that adopt to be not less than 10mm thickness makes, positive inner edge tempered glass is used to observe the shown data of digital display meter, and the case lid periphery compresses sealing with tens bolts.Adopt this technology, after installation and coming into operation, each technical parameter in the digital display meter can not be adjusted or revise at any time, makes and safeguards very trouble, and use cost is higher; The 2nd, adopt the positive-pressure type explosion-proof tank: will non-explosion-proof common digital display meter be placed in the explosion-proof tank more than more airtight, the steel plate that employing is not less than 5mm thickness, positive inner edge tempered glass is used to observe the shown data of digital display meter, explosion-proof tank feeds pressurized air by outside air compressor machine, to keep internal positive pressure, prevent that outside inflammable gas from entering in the explosion-proof tank.Adopt this technology, can make that installation, operation and the workload of safeguarding are bigger, especially more uneconomical under the less situation of digital display meter.
The utility model content:
The purpose of this utility model is, overcome the deficiencies in the prior art part, a kind of explosion-proof digital displaying meter is provided, with explosion-proof digital displaying meter self explosion-proof structure and performance, exempt the installation of explosion-proof tank, explosion-proof digital displaying meter described in the utility model directly can be installed and used in inflammable and explosive zone.
Explosion-proof digital displaying meter described in the utility model includes explosion-proof watchcase, explosion-proof panel, measurement display circuit board, operating key and long cable section of ingoing line hole and forms.Said explosion-proof watchcase is the main component of explosion-proof digital displaying meter described in the utility model, be the rectangular parallelepiped form, explosion-proof watchcase and explosion-proof panel common combination are full-closed structure, the upper and lower side of explosion-proof watchcase rear panel is provided with and mounts ring, lower panel is provided with the long cable section of ingoing line hole, be provided with the bolt hole that fixing explosion-proof panel uses around the front side of housing, in a word, housing is made by national technical supervision department relevant regulations.Place instrument measurement display circuit board, light-emitting diode display, fine motion button in the explosion-proof watchcase.The periphery of explosion-proof panel is provided with the fixed-use bolt hole corresponding with the bolt hole of explosion-proof watchcase periphery, and it is fixing to use bolt to tighten, and guarantees sealing.Used bolt is recommended to use hexagon socket head cap screw, to guarantee attractive in appearance and safety.On the top of explosion-proof panel the tempered glass display window is set, is used to show measured value, setting value and warning, output indication.At the middle part of explosion-proof panel, be provided with and the corresponding operating key of inner fine motion button, said operating key adopts the driven type press-key structure, thereby adjusts or revise the parameter of instrument at any time by the inner fine motion button of this driven type button operation.
Explosion-proof digital displaying meter described in the utility model, adopted meter case with explosion prevention function, built-in measurement display circuit board, it can be moved in the inflammable and explosive zone in IIB, IIA class, manufacturing cost decreases, especially the expense of installing, moving and safeguard can reduce greatly, and reliability improves greatly.
Description of drawings:
Accompanying drawing is the structural representation of explosion-proof digital display measurement and control instrument described in the utility model.The explosion-proof panel 3-LED of the explosion-proof watchcase 2-of 1-display 4-operating key 5-long cable section of ingoing line hole
Embodiment:
Referring now to accompanying drawing, be described as follows in conjunction with the embodiments: explosion-proof digital displaying meter described in the utility model includes explosion-proof watchcase 1, explosion-proof panel 2, light-emitting diode display 3, operating key 4, long cable section of ingoing line hole 5 and measures display circuit board and form.Said explosion-proof watchcase 1 is the main component of explosion-proof digital displaying meter described in the utility model, be the rectangular parallelepiped form, explosion-proof watchcase 1 is a full-closed structure with explosion-proof panel 2 common combinations, the upper and lower side of explosion-proof watchcase rear panel is provided with and mounts ring, explosion-proof watchcase lower panel is provided with long cable section of ingoing line hole 5, the front side of explosion-proof casing be used for explosion-proof panel 2 match around be provided with the bolt hole that fixing explosion-proof panel 2 uses.Explosion-proof watchcase 1 and explosion-proof panel 2 are made by national technical supervision department relevant regulations.Be provided with in the explosion-proof watchcase 1 and measure display circuit board, light-emitting diode display 3 and fine motion button, explosion-proof panel 2 is provided with the operating key corresponding with the fine motion button 4.The periphery of explosion-proof panel 2 is provided with the corresponding fixed-use bolt hole of bolt hole with explosion-proof watchcase 1 preceding side periphery, and it is fixing to use bolt to tighten, and guarantees sealing.Used bolt is recommended to use hexagon socket head cap screw, to guarantee attractive in appearance and safety.On the top of explosion-proof panel 2 the tempered glass display window is set, the transmission display window can be seen light-emitting diode display 3, is used to show measured value, setting value and warning, output indication.That is to say that the top of explosion-proof panel 2 is provided for showing the tempered glass display window of light-emitting diode display 3, demonstration measured value, setting value and warning, output indication.At the middle part of explosion-proof panel 2, be provided with operating key 4, said operating key 4 adopts the driven type press-key structure, thereby adjusts or revise the parameter of instrument at any time by the inner fine motion button of this driven type button operation.Explosion-proof digital displaying meter described in the utility model, adopted meter case with explosion prevention function, built-in measurement display circuit board, it can be moved in the inflammable and explosive zone in IIB, IIA class, manufacturing cost decreases, especially the expense of installing, moving and safeguard can reduce greatly, and reliability improves greatly.
Claims (3)
1, explosion-proof digital displaying meter, explosion-proof watchcase (1) is a main component, be the rectangular parallelepiped form, explosion-proof watchcase (1) is a full-closed structure with explosion-proof panel (2) common combination, the upper and lower side of explosion-proof watchcase rear panel is provided with and mounts ring, it is characterized in that being provided with in the explosion-proof watchcase (1) and measure display circuit board, light-emitting diode display (3) and fine motion button, explosion-proof panel (2) is provided with the operating key corresponding with the fine motion button (4).
2, explosion-proof digital displaying meter according to claim 1, it is characterized in that explosion-proof watchcase lower panel is provided with long cable section of ingoing line hole (5), be provided with the bolt hole that fixing explosion-proof panel (2) uses around the front side of explosion-proof watchcase (1), the periphery of explosion-proof panel (2) is provided with and the corresponding fixed-use bolt hole of bolt hole all around, explosion-proof watchcase (1) front side.
3, explosion-proof digital displaying meter according to claim 1, the tempered glass display window of it is characterized in that the top of explosion-proof panel (2) is provided for showing light-emitting diode display (3), show measured value, setting value and warning, output being indicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520085416 CN2802448Y (en) | 2005-07-17 | 2005-07-17 | Eplosion-proof digital display meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520085416 CN2802448Y (en) | 2005-07-17 | 2005-07-17 | Eplosion-proof digital display meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802448Y true CN2802448Y (en) | 2006-08-02 |
Family
ID=36847157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520085416 Expired - Fee Related CN2802448Y (en) | 2005-07-17 | 2005-07-17 | Eplosion-proof digital display meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802448Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754600A (en) * | 2008-11-28 | 2010-06-23 | 陕西航泰电气有限公司 | Method for designing explosion-proof box of explosion-proof monitor for television monitoring device |
| CN101754601A (en) * | 2008-11-28 | 2010-06-23 | 陕西航泰电气有限公司 | Method for designing explosion-proof box of explosion-proof video tape recorder for television monitoring device |
-
2005
- 2005-07-17 CN CN 200520085416 patent/CN2802448Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754600A (en) * | 2008-11-28 | 2010-06-23 | 陕西航泰电气有限公司 | Method for designing explosion-proof box of explosion-proof monitor for television monitoring device |
| CN101754601A (en) * | 2008-11-28 | 2010-06-23 | 陕西航泰电气有限公司 | Method for designing explosion-proof box of explosion-proof video tape recorder for television monitoring device |
| CN101754601B (en) * | 2008-11-28 | 2015-08-05 | 陕西航泰电气有限公司 | The explosion-proof tank method for designing of flame-proof video recorder for television monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |