CN202196496U - Portable methane detection alarm with induction switch - Google Patents
Portable methane detection alarm with induction switch Download PDFInfo
- Publication number
- CN202196496U CN202196496U CN2011203164113U CN201120316411U CN202196496U CN 202196496 U CN202196496 U CN 202196496U CN 2011203164113 U CN2011203164113 U CN 2011203164113U CN 201120316411 U CN201120316411 U CN 201120316411U CN 202196496 U CN202196496 U CN 202196496U
- Authority
- CN
- China
- Prior art keywords
- switch
- integrated circuit
- capacitive load
- induction switch
- methane detection
- 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 portable methane detection alarm with an induction switch. The portable methane detection alarm comprises a detection circuit arranged in the alarm casing and provided with an embedded microprocessor, and further comprises a capacitive load touch integrated circuit induction switch mounted on the inner wall of the front side of the casing through a circuit board, the operating position of the capacitive load touch integrated circuit induction switch is arranged on the front side of the casing, and the capacitive load touch integrated circuit induction switch is connected with the embedded microprocessor. The utility model has the characteristics that the portable methane detection alarm is safer and better conforms to the requirement of essential safety circuit technique used in a coal mine; the electric service life is much longer than the mechanical service life of both a button switch and a membrane switch, and the service life is greatly prolonged; and the button switch and the membrane switch are imperfect in the protection (dust-proof and waterproof) structures per se, while the induction switch is perfect in the protection structure.
Description
Technical field
The utility model relates to a kind of portable methane detection alarming instrument that has inductive switch, is high-effect, the intelligent instrumentation that is used for the colliery.
Background technology
The colliery exists methane (gas) blast, fire, permeable and roof fall four the Nature disasters.And the methane blast occupies first of four the Nature disasters.Detecting and preventing these disasters is cores of mine safety technology.Safety instrument then is the basic equipment of mine safety.Along with the mine safety input increases year by year, the mine safety technology obtains develop rapidly.With regard to the methane detector device, from analogue type, develop into numeric type, the especially utilization of electron and information technology, fail safe instrument has presented high-effectization, high-intelligentization.It also constantly proposes new requirement to supporting basic device and structural member.From originally pushbutton switch, develop into the thin film switch that generally uses now such as the switch of methane detector device.No matter this is in practicality, security and microminiaturization, to improve much really, but still undesirable on its reliability and the barrier propterty.Pushbutton switch and thin film switch all receive the restriction of mechanical life; Film or pushbutton switch installation place all have through hole, have protection (dustproof, the waterproof) structure problem of self.
Summary of the invention
In view of the deficiency that prior art exists, the utility model provides a kind of portable methane detection alarming instrument that has inductive switch.This alarm adopts capacitive load to touch integrated circuit replacement film or pushbutton switch traditionally, and is safer, more meets the colliery and uses the intrinsically safe circuit technical requirement.
The utility model is for realizing above-mentioned purpose; The technical scheme that is adopted is: a kind of portable methane detection alarming instrument that has inductive switch; Comprise and be arranged on the testing circuit that has embedded microprocessor in the Instrument shell; It is characterized in that: comprise that also capacitive load touches the integrated circuit inductive switch; Said capacitive load touches the integrated circuit inductive switch and is installed on the positive inwall of housing through circuit board, and the operating position that capacitive load touches the integrated circuit inductive switch is arranged on the housing front, and capacitive load touches the integrated circuit inductive switch and is connected with embedded microprocessor.
The characteristics of the utility model are: 1. inductive switch belongs to noncontacting switch fully, and is safer, more meets the requirement of colliery with the intrinsically safe circuit technology.2. the electrical endurance of inductive switch is far longer than the mechanical life of pushbutton switch and thin film switch, and pushbutton switch and thin film switch all receive the restriction of mechanical life, and there is not problem mechanical life in inductive switch, can prolong its serviceable life greatly.3. pushbutton switch and thin film switch all have protection (dustproof, the waterproof) structure problem of self, and there is not the safeguard structure problem in inductive switch.
Description of drawings
Fig. 1 is the front view of the utility model.
Fig. 2 is the sectional side view of the utility model.
Fig. 3 is that the circuit of the utility model connects block diagram.
Fig. 4 is the circuit theory diagrams of the utility model.
Embodiment
Like Fig. 1,2,3, shown in 4; The portable methane detection alarming instrument that has inductive switch; Comprise and be arranged on the testing circuit that has embedded microprocessor in the Instrument shell; Comprise that also capacitive load touches integrated circuit inductive switch 2, capacitive load touches integrated circuit inductive switch 2 and is installed in through circuit board on the inwall in housing 1 front, and the operating position 2-1 that capacitive load touches integrated circuit inductive switch 2 is arranged on housing 1 front; See that from the housing front inductive switch is the several pits on the case surface, capacitive load touches integrated circuit inductive switch 2 and is connected with embedded microprocessor.
Principle of work: touch integrated circuit with capacitive load and replace traditionally film or pushbutton switch.When human body touch arrived this on-off circuit, the distributed capacitance of capacitive load integrated circuit strengthened, and the concussion frequency reduces, and exports a switching signal, according to different operation, accomplished the ON/OFF or the debugging of instrument.Method of operating is identical with using film or pushbutton switch.
Claims (1)
1. portable methane detection alarming instrument that has inductive switch; Comprise and be arranged on the testing circuit that has embedded microprocessor in the Instrument shell; It is characterized in that: comprise that also capacitive load touches integrated circuit inductive switch (2); Said capacitive load touches integrated circuit inductive switch (2) and is installed on the positive inwall of housing (1) through circuit board; The operating position (2-1) that capacitive load touches integrated circuit inductive switch (2) is arranged on housing (1) front, and capacitive load touches integrated circuit inductive switch (2) and is connected with embedded microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203164113U CN202196496U (en) | 2011-08-27 | 2011-08-27 | Portable methane detection alarm with induction switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203164113U CN202196496U (en) | 2011-08-27 | 2011-08-27 | Portable methane detection alarm with induction switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196496U true CN202196496U (en) | 2012-04-18 |
Family
ID=45951399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203164113U Expired - Fee Related CN202196496U (en) | 2011-08-27 | 2011-08-27 | Portable methane detection alarm with induction switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202196496U (en) |
-
2011
- 2011-08-27 CN CN2011203164113U patent/CN202196496U/en not_active Expired - Fee Related
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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: 20120418 Termination date: 20190827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |