The waterproof and breathable gas sensor device
Technical field
The utility model relates to a kind of gas sensor.
Background technology
Sensor is that to experience regulation measured and convert the device or the device of usable output signal to according to certain rule.Gas sensor is to be used for the composition of detected gas and the sensor of content, it is generally acknowledged, the definition of gas sensor is a basis of classification to detect target, that is to say that every sensor that is used for detected gas composition and concentration all is called gas sensor.Existing gas sensor is as CO
2, gas sensor such as methane (rock gas, biogas), carbon monoxide, sulfuretted hydrogen, ammonia, do not possess water-proof function, be not suitable for humidity, the place of water arranged, as be embedded in the soil.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, waterproof and breathable gas sensor device with water-proof function.
To achieve these goals, the technical solution of the utility model is: the waterproof and breathable gas sensor device, it comprises gas sensor, it is characterized in that: gas sensor 8 is positioned at the cavity of housing 7, the signal wire 9 of gas sensor 8 passes the signal wire hole 10 on the housing 7, be provided with marine glue in the signal wire hole 10, cap 1 is fixedlyed connected with housing 7 by second screw 5, is provided with sealing rubber ring 11 between cap 1 and the housing 7; Have pore 6 on the cap 1, waterproof and breathable cloth 3 cover the cap 1 that has pore 6 above, be pressed with pressing plate 2 around the waterproof and breathable cloth 3, pressing plate 2 is fixedlyed connected with cap 1 by first screw 4.
Around the pressing plate 2, first screw, 4 places, second screw, 5 places are provided with marine glue.
The utility model adopts gas sensor 8 to be arranged in the box (cap 1, housing 7) of a sealing, has pore on the cap 1, and pore is provided with waterproof and breathable cloth, can only input and output gas, and the branch of can not intaking, thereby have waterproof and airing function; The utility model is simple in structure, cost is low, is specially adapted to humidity, the place of water is arranged, as be embedded in the soil, carries out the on-line determination of gas.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the cut-open view of Fig. 1 along the A-A line
Among the figure: 1-cap, 2-pressing plate, 3-waterproof and breathable cloth, 4-first screw, 5-second screw, 6-pore, 7-housing, 8-gas sensor, 9-signal wire, 10-signal wire hole, 11-sealing rubber ring.
Embodiment
As shown in Figure 1 and Figure 2, the waterproof and breathable gas sensor device, it comprises gas sensor, gas sensor 8 is positioned at the cavity of housing 7, the signal wire 9 of gas sensor 8 passes the signal wire hole 10 on the housing 7 and is sealed by marine glue, cap 1 is fixedlyed connected with housing 7 (respectively being provided with second screw 5 on four corners) by second screw 5, is provided with sealing rubber ring 11 between cap 1 and the housing 7; Have pore 6 on the cap 1, waterproof and breathable cloth 3 cover the cap 1 that has pore 6 above, be pressed with pressing plate 2 around the waterproof and breathable cloth 3, pressing plate 2 is fixedlyed connected (respectively being provided with first screw 4 at least on four corners all around of pressing plate 2) by first screw 4 with cap 1; Around the pressing plate 2, first screw, 4 places, second screw, 5 places seal by marine glue.
Described gas sensor 8 is TGS4160 type CO
2Sensor, TGS4160 type CO
2Sensor is a kind of solid-state electrochemistry type carbon dioxide (CO that FIGARO (not add and patrol) company produces
2) sensor.TGS4160 type CO
2Sensor is particularly suitable for continuous monitoring CO
2The place, it need not cut off the power supply, its good stability.The waterproof and breathable cloth 3 that is adopted, English name: (gore-tex), be existing product.
The utility model can directly be placed in the environment of soil or high humidity, carries out CO
2The on-line determination of gas; Cheap; Waterproof and breathable cloth does not influence CO
2The permeability of gas, but can stop penetrating of water.
Gas sensor 8 also can be gas sensors such as methane (rock gas, biogas), carbon monoxide, sulfuretted hydrogen or ammonia.The utility model gas sensor 8 is a prior art.