Gas sensor base rain protection structure

Abstract

The utility model provides a kind of gas sensor base rainproof structure, including the sensor base upper shell being connected in the bottom of gas transmitter, the one end of sensor base upper shell away from gas transmitter is equipped with sensor base lower shell, sensor body is equipped between sensor base upper shell and sensor base lower shell, the one end of sensor base lower shell away from sensor base upper shell is equipped with rainproof base. The structure can prevent water damage sensor, while not affect air intake, ensure response speed.

Description

Technical Field

[0001] This utility model relates to the field of gas sensor technology, specifically to a rainproof structure for a gas sensor base. Background Technology

[0002] In fields such as industrial safety and environmental monitoring, gas detectors are commonly used monitoring devices to detect the concentration of specific gases in the working environment. Currently available gas detectors detect gas flow through internally installed gas sensors. However, existing sensor base structures are prone to water ingress during rainy weather, which can damage the gas sensor and increase maintenance costs. Simply covering the sensor with a rain cover, on the other hand, can affect the gas sensor's airflow, resulting in a decrease in response speed. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, this utility model proposes a rainproof structure for a gas sensor base, which can prevent water from entering and damaging the sensor, while not affecting the air intake and ensuring the response speed.

[0004] To achieve the above objectives, the gas sensor base rainproof structure of this utility model includes an upper sensor base housing connected to the bottom of a gas transmitter, a lower sensor base housing located at the end of the upper sensor base housing away from the gas transmitter, a sensor body located between the upper sensor base housing and the lower sensor base housing, and a rainproof base located at the end of the lower sensor base housing away from the upper sensor base housing.

[0005] Furthermore, the rainproof base includes a rainproof cover, which is a cylindrical structure with one open side. The end of the rainproof cover facing away from the open side is provided with a threaded joint for connecting to the lower housing of the sensor base.

[0006] Furthermore, the rain cover is equipped with a vent pipe that runs through its axis. The vent pipe is a hollow tubular structure that runs through the center and passes through a threaded joint.

[0007] Furthermore, the vent pipe extends inside the rain cover, with the length of the vent pipe being less than the height of the rain cover, and the bottom of the vent pipe remaining inside the rain cover.

[0008] Furthermore, the outer periphery of the rain cover is provided with side air holes, which are evenly distributed at equal intervals in the circumferential direction of the rain cover.

[0009] Furthermore, a rainproof shield is provided inside the rainproof cover. The rainproof shield is located between the rainproof cover and the vent pipe. The rainproof shield has a ring structure and surrounds the circumference of the rainproof cover.

[0010] Furthermore, the height of the rain cover is less than the length of the vent pipe, the bottom of the rain cover is above the bottom of the vent pipe, and the bottom of the rain cover is below the bottom of the side vent.

[0011] Furthermore, a first O-ring is provided between the threaded connector and the lower housing of the sensor base.

[0012] Furthermore, the upper housing of the sensor base is provided with a detection circuit board and a sensor board mounting base. The sensor body is set on the sensor board mounting base. The bottom of the lower housing of the sensor base is open, and an explosion-proof mesh is provided on the opening of the lower housing of the sensor base. An explosion-proof mesh pressure ring is provided inside the lower housing of the sensor base. A second O-ring is provided between the bottom of the sensor body and the explosion-proof mesh. A third O-ring is provided between the lower housing of the sensor base and the upper housing of the sensor base.

[0013] The rainproof structure of the gas sensor base of this utility model can prevent water from entering the sensor base and damaging the sensor. At the same time, it is equipped with a ventilated structure on the side and bottom, which does not affect the air intake on the bottom and side of the sensor base, thus ensuring the response speed. Attached Figure Description

[0014] The present invention will be further described and explained below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the rainproof structure of the gas sensor base according to the preferred embodiment of this utility model.

[0016] Figure 2 This is an exploded view of the rainproof structure of the gas sensor base.

[0017] Figure 3 This is a cross-sectional view of the rainproof base.

[0018] Reference numerals: 1. Upper housing of sensor base; 2. Detection circuit board; 3. Sensor board mounting base; 4. Sensor body; 5. Second O-ring; 6. Third O-ring; 7. Explosion-proof mesh pressure ring; 8. Explosion-proof mesh; 9. Lower housing of sensor base; 10. First O-ring; 11. Rainproof base; 111. Rainproof cover; 112. Threaded joint; 113. Vent pipe; 114. Rainproof shield; 115. Side vent. Detailed Implementation

[0019] The technical solution of this utility model will be more clearly and completely explained below with reference to the accompanying drawings and through the description of the preferred embodiments of this utility model.

[0020] like Figure 1 and Figure 2As shown, the preferred embodiment of the gas sensor base rainproof structure of this utility model includes a sensor base upper housing 1 connected to the bottom of the gas transmitter, a sensor base lower housing 9 provided at the end of the sensor base upper housing 1 away from the gas transmitter, a sensor body 4 provided between the sensor base upper housing 1 and the sensor base lower housing 9, and a rainproof base 11 provided at the end of the sensor base lower housing 9 away from the sensor base upper housing 1.

[0021] like Figure 1 and Figure 2 As shown, the upper housing 1 of the sensor base is provided with a detection circuit board 2 and a sensor board mounting base 3. The sensor body 4 is set on the sensor board mounting base 3. The bottom of the lower housing 9 of the sensor base is open. An explosion-proof mesh 8 is provided on the opening of the lower housing 9 of the sensor base. An explosion-proof mesh pressure ring 7 is provided inside the lower housing 9 of the sensor base. A second O-ring 5 is provided between the bottom of the sensor body 4 and the explosion-proof mesh 8. A third O-ring 6 is provided between the lower housing 9 of the sensor base and the upper housing 1 of the sensor base.

[0022] like Figure 2 and Figure 3 As shown, the rainproof base 11 includes a rainproof cover 111, which is a cylindrical structure with one open side. Side vents 115 are provided on the outer periphery of the rainproof cover 111, and these vents are evenly distributed equidistantly along the circumference of the rainproof cover 111. A threaded connector 112 for connecting to the lower housing 9 of the sensor base is provided at one end of the rainproof cover 111 away from the open end. A first O-ring 10 is provided between the threaded connector 112 and the lower housing 9 of the sensor base.

[0023] like Figure 2 and Figure 3 As shown, a vent pipe 113 is provided inside the rain cover 111, passing through its axis. The vent pipe 113 is a hollow, through-hole tubular structure, and passes through a threaded connector 112. The vent pipe 113 extends inside the rain cover 111, and the length of the vent pipe 113 is less than the height of the rain cover 111. The bottom of the vent pipe 113 remains inside the rain cover 111.

[0024] like Figure 2 and Figure 3 As shown, a rainproof cover 114 is provided inside the rainproof cover 111. The rainproof cover 114 is positioned between the rainproof cover 111 and the vent pipe 113. The rainproof cover 114 has a ring-shaped structure and surrounds the circumference of the rainproof cover 111. The height of the rainproof cover 114 is less than the length of the vent pipe 113. The bottom of the rainproof cover 114 is above the bottom of the vent pipe 113 and below the bottom of the side vent 115. This ensures that rainwater will not directly hit the center of the rainproof cover 111 through the side vent 115.

[0025] The above-described specific embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Various modifications, substitutions, and improvements made by those skilled in the art to the technical solutions of the present invention based on the provided description and drawings, without departing from the design concept and spirit of the present invention, should all fall within the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. A rainproof structure for a gas sensor base, characterized in that, The device includes an upper housing of a sensor base connected to the bottom of a gas transmitter. A lower housing of the sensor base is located at the end of the upper housing away from the gas transmitter. A sensor body is located between the upper housing and the lower housing. A rainproof base is located at the end of the lower housing away from the upper housing.

2. The rainproof structure for the gas sensor base according to claim 1, characterized in that, The rainproof base includes a rainproof cover, which is a cylindrical structure with one open side. The end of the rainproof cover opposite the open side is provided with a threaded joint for connecting to the lower housing of the sensor base.

3. The rainproof structure for the gas sensor base according to claim 2, characterized in that, The rain cover is equipped with a vent pipe that runs through its axis. The vent pipe is a hollow tubular structure that runs through the center and passes through a threaded joint.

4. The rainproof structure for the gas sensor base according to claim 3, characterized in that, The vent pipe extends inside the rain cover, the length of the vent pipe is less than the height of the rain cover, and the bottom of the vent pipe remains inside the rain cover.

5. The rainproof structure for the gas sensor base according to claim 4, characterized in that, The outer periphery of the rainproof cover is provided with a number of side air holes, which are evenly distributed at equal intervals in the circumferential direction of the rainproof cover.

6. The rainproof structure for the gas sensor base according to claim 5, characterized in that, The rainproof cover is equipped with a rainproof shield, which is located between the rainproof cover and the vent pipe. The rainproof shield has a ring structure and surrounds the circumference of the rainproof cover.

7. The rainproof structure for the gas sensor base according to claim 6, characterized in that, The height of the rainproof cover is less than the length of the vent pipe, the bottom of the rainproof cover is above the bottom of the vent pipe, and the bottom of the rainproof cover is below the bottom of the side vent.

8. The rainproof structure for the gas sensor base according to claim 2, characterized in that, A first O-ring is provided between the threaded joint and the lower housing of the sensor base.

9. The rainproof structure for the gas sensor base according to claim 1, characterized in that, The upper housing of the sensor base is provided with a detection circuit board and a sensor board mounting base. The sensor body is set on the sensor board mounting base. The bottom of the lower housing of the sensor base is open. An explosion-proof mesh is provided on the opening of the lower housing of the sensor base. An explosion-proof mesh pressure ring is provided inside the lower housing of the sensor base. A second O-ring is provided between the bottom of the sensor body and the explosion-proof mesh. A third O-ring is provided between the lower housing of the sensor base and the upper housing of the sensor base.

Images