Optical concentration sensor protective casing and optical concentration testing device

1. An optical concentration sensor protective casing, comprising an outer cover, a bubble isolation shield, and an air hole baffle plate, wherein

the bubble isolation shield is embedded on an inner side of the outer cover;

the outer cover is provided with a convection hole;

the bubble isolation shield is provided with a liquid intake hole; and

the outer cover is provided with a first exhaust hole, the air hole baffle plate covers the first exhaust hole, and an interstice exists between the air hole baffle plate and the first exhaust hole.

2. The optical concentration sensor protective casing according to claim 1 , wherein the bubble isolation shield is provided with a second exhaust hole, the first exhaust hole and the second exhaust hole intercommunicate.

3. The optical concentration sensor protective casing according to claim 2 , wherein the bubble isolation shield is made of elastic materials.

4. The optical concentration sensor protective casing according to claim 1 , wherein an obstacle is disposed between the convection hole and the liquid intake hole and a solution to be tested bypasses the obstacle from the convection hole to the liquid intake hole.

5. The optical concentration sensor protective casing according to claim 4 , wherein the outer cover is provided with two convection holes, the obstacle comprises two separating plates, the liquid intake hole is disposed between the two separating plates, and the two convection holes are disposed on respective outer sides of the two separating plates.

6. The optical concentration sensor protective casing according to claim 5 , wherein the two separating plates are arranged in a splayed pattern.

7. The optical concentration sensor protective casing according to claim 6 , wherein the two separating plates comprise a first separating plate and a second separating plate, the liquid intake hole is located between the first separating plate and the second separating plate and at an end where a distance between the first separating plate and the second separating plate is larger, and the liquid intake hole abuts the second separating plate.

8. The optical concentration sensor protective casing according to claim 7 , wherein the bubble isolation shield is made of elastic materials.

9. The optical concentration sensor protective casing according to claim 6 , wherein the bubble isolation shield is made of elastic materials.

10. The optical concentration sensor protective casing according to claim 5 , wherein the bubble isolation shield is made of elastic materials.

11. The optical concentration sensor protective casing according to claim 4 , wherein the bubble isolation shield is made of elastic materials.

12. The optical concentration sensor protective casing according to claim 1 , wherein the bubble isolation shield is made of elastic materials.

13. An optical concentration testing device, comprising an optical concentration sensor protective casing, wherein the optical concentration sensor protective casing comprises an outer cover, a bubble isolation shield, and an air hole baffle plate, wherein

the bubble isolation shield is embedded on an inner side of the outer cover;

the outer cover is provided with a convection hole;

the bubble isolation shield is provided with a liquid intake hole; and

the outer cover is provided with a first exhaust hole, the air hole baffle plate covers the first exhaust hole, and an interstice exists between the air hole baffle plate and the first exhaust hole.

14. The optical concentration testing device according to claim 13 , further comprising a sensor body, wherein the sensor body is provided with a testing gap and the testing gap opens in a horizontal direction.

15. The optical concentration testing device according to claim 13 , wherein the bubble isolation shield is provided with a second exhaust hole, the first exhaust hole and the second exhaust hole intercommunicate.

16. The optical concentration testing device according to claim 13 , wherein an obstacle is disposed between the convection hole and the liquid intake hole and a solution to be tested bypasses the obstacle from the convection hole to the liquid intake hole.

17. The optical concentration testing device according to claim 16 , wherein the outer cover is provided with two convection holes, the obstacle comprises two separating plates, the liquid intake hole is disposed between the two separating plates, and the two convection holes are disposed on respective outer sides of the two separating plates.

18. An optical concentration sensor protective casing, comprising an outer cover and a bubble isolation shield, wherein

the bubble isolation shield is embedded on an inner side of the outer cover;

the outer cover is provided with a convection hole;

the bubble isolation shield is provided with a liquid intake hole;

an obstacle is disposed between the convection hole and the liquid intake hole and a solution to be tested bypasses the obstacle from the convection hole to the liquid intake hole; and

the outer cover is provided with two convection holes, the obstacle comprises two separating plates, the liquid intake hole is disposed between the two separating plates, and the two convection holes are disposed on respective outer sides of the two separating plates.

19. The optical concentration sensor protective casing according to claim 18 , wherein the two separating plates are arranged in a splayed pattern.

20. The optical concentration sensor protective casing according to claim 19 , wherein the two separating plates comprise a first separating plate and a second separating plate, the liquid intake hole is located between the first separating plate and the second separating plate and at an end where a distance between the first separating plate and the second separating plate is larger, and the liquid intake hole abuts the second separating plate.