Sensor protection device and sensor

Abstract

The present invention discloses a sensor protection device and a sensor. The device includes: a protection sleeve, a first channel is formed on the wall of the sleeve. The first channel has opposite ends and opposite sides. Air guide ports are respectively formed at the opposite ends of the first channel. Multiple first water baffle plates are formed in a staggered manner on the opposite sides of the first channel facing each other. A drain port penetrating the wall of the sleeve is formed at the bottom of the first channel. A support plate and a water isolation plate arranged below the support plate are provided in the protection sleeve; an annular base detachably installed at the bottom of the protection sleeve, which forms a plurality of second channels. The plurality of second channels are arranged along the circumferential direction of the annular base. A plurality of second water baffle plates and third water baffle plates arranged at intervals are connected between the opposite sides of the second channel; a cover detachably installed at the top of the protection sleeve, and an inclined downward shielding flange is formed at the outer edge thereof. The present invention solves the problem that the existing Internet of Things sensors are prone to water ingress and malfunction.

Description

Technical Field

[0001] The present invention relates to the technical field of Internet of Things sensors, and particularly relates to a sensor protection device and a sensor. Background Art

[0002] Existing Internet of Things sensors are installed in various environments to detect various parameters of the environment. In some special environments (such as the river surface, sea surface, storm, high-pressure water pump disinfection and flushing in a water-adjacent environment), the sensors are extremely likely to be wetted by water, and then the sensors are corroded or rusted and malfunction, affecting the operation stability of the Internet of Things monitoring system.

[0003] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0004] To overcome the defects existing in the prior art, a sensor protection device and a sensor are provided herein to solve the problem that existing Internet of Things sensors are prone to water ingress and malfunction.

[0005] To achieve the above object, a sensor protection device is provided, including:

[0006] A protective sleeve, in which a first duct is formed in the wall of the protective sleeve. The first duct has opposite ends in the radial direction of the sleeve wall and opposite sides in the circumferential direction. Opposite ends of the first duct are respectively provided with air guide openings penetrating the sleeve wall. Opposite sides of the first duct are oppositely formed with multiple first water baffle plates arranged in a staggered manner. A wavy channel is formed between the multiple first water baffle plates. Two ends of the wavy channel are respectively communicated with the air guide openings at two ends of the first duct. A drain opening penetrating the sleeve wall is formed at the bottom of the first duct. A support plate for installing a sensor body and a water isolation plate arranged below the support plate are provided in the protective sleeve;

[0007] An annular base, detachably installed at the bottom of the protective sleeve. The annular base is formed with a plurality of second ducts vertically arranged and penetrating. The plurality of second ducts are arranged along the circumferential direction of the annular base. A plurality of second water baffle plates arranged at intervals and a third water baffle plate for covering a gap between two adjacent second water baffle plates are connected between opposite sides of the second duct; and

[0008] A cylinder cover, detachably installed at the top of the protective sleeve. An outer edge of the cylinder cover is formed with a shielding flange inclined downward.

[0009] Furthermore, the number of the first ducts is multiple, and the multiple first ducts are arranged along the circumferential direction of the protective sleeve.

[0010] Furthermore, the first water baffle is perpendicularly arranged with respect to the inner walls on the opposite two sides of the first duct.

[0011] Furthermore, the first water baffle has a fixed end and a cantilever end which are opposite to each other, and the cantilever end is inclined towards the outside of the protective sleeve.

[0012] Furthermore, the included angle between the first water baffle and the inner walls on the opposite two sides of the first duct is 45° to 65°.

[0013] Furthermore, the first duct vertically penetrates through the cylinder wall.

[0014] Furthermore, the second water baffle and the third water baffle are respectively inclined, and the inclination direction of the second water baffle is opposite to that of the third water baffle.

[0015] Furthermore, an upper cavity is formed inside the cylinder cover, and a lower cavity is arranged below the upper cavity.

[0016] The present invention provides a sensor, which is characterized by comprising:

[0017] A sensor protection device; and

[0018] A sensor body, which is installed on the support plate of the sensor protection device.

[0019] Furthermore, two ventilation fans are further included and installed on the support plate, and the two ventilation fans are respectively arranged on the opposite two sides of the sensor body.

[0020] The beneficial effects of the present invention are as follows. The support plate of the protective sleeve of the sensor protection device of the present invention is used to install the sensor body. The bottom of the isolation plate of the protective sleeve is sleeved with a support rod through a sleeve to place the sensor body in a water environment. In a water environment, when there is a water impact outside the protective sleeve, most of the water is blocked by the outer walls of the protective sleeve, the cover and the annular base. Part of the water enters the first channel through the air guide port outside the first channel and is successively blocked by the first water blocking plates arranged in an offset manner. The water blocked by the first water blocking plates flows along the plate surface of the first water blocking plates to the drain port and is discharged to the upper end surface of the annular base. The water on the upper end surface of the annular base then flows into the adjacent two second channels and finally is discharged to the outside of the annular base through the gaps between the adjacent two second water blocking plates and the gaps between the adjacent two third water blocking plates, so that the inside of the protective sleeve remains dry. When there is a water impact on the bottom of the annular base from the outside of the annular base, only part of the water enters the second channel through the gap between the adjacent two second water blocking plates and will also be blocked by the third water blocking plate, so that this part of the water cannot flow upstream into the inner cavity of the protective sleeve. The shielding flange of the cover of the protective sleeve of the sensor protection device of the present invention is arranged outside the air guide port outside the first channel to prevent the water above the cover from directly entering the air guide port. In addition, the cover can prevent ultraviolet radiation and the like. On the other hand, the inner cavity for installing the sensor body in the protective sleeve is communicated with the outside through the air guide port and the first channel, so that the sensor body can normally detect environmental data such as air, temperature, humidity, and gas content. The sensor body can be kept dry under the protection of the sensor protection device of the present invention, the service life of the sensor body is prolonged, and the stable operation of the sensor body is effectively maintained. Description of the Drawings

[0021] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, other features, objects, and advantages of the present application will become more apparent:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the sensor protection device according to an embodiment of the present invention.

[0023] Figure 2 It is a top view of the sensor protection device according to an embodiment of the present invention.

[0024] Figure 3 It is a side view of the sensor protection device according to an embodiment of the present invention.

[0025] Figure 4 It is a bottom view of the sensor protection device according to an embodiment of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the bottom of the protective sleeve according to an embodiment of the present invention.

[0027] Figure 6Schematic diagram of the top of the protective sleeve according to an embodiment of the present invention.

[0028] Figure 7 Top view of the protective sleeve according to an embodiment of the present invention.

[0029] Figure 8 Cross-sectional view of the sensor protection device according to an embodiment of the present invention.

[0030] Figure 9 Schematic diagram of the bottom of the base according to an embodiment of the present invention.

[0031] Figure 10 Cross-sectional view of the base according to an embodiment of the present invention.

[0032] Figure 11 Cross-sectional view of the second channel according to an embodiment of the present invention.

[0033] Figure 12 Schematic diagram of the bottom of the base according to an embodiment of the present invention.

[0034] Figure 13 Brief schematic diagram of the air inflow direction in the first channel according to an embodiment of the present invention.

[0035] Figure 14 Schematic diagram of another setting angle of the first water baffle according to an embodiment of the present invention. Detailed implementation manners

[0036] The following further elaborates the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention and are not intended to limit the invention. Additionally, it should be noted that for ease of description, only parts related to the invention are shown in the drawings.

[0037] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will elaborate on the present application in detail with reference to the drawings and embodiments.

[0038] Refer to Figures 1 to 14 As shown, the present invention provides a sensor protection device, including: a protective sleeve 1, an annular base 2, and a barrel cover 3.

[0039] The protective sleeve is vertically arranged. A first channel 10 is formed in the barrel wall of the protective sleeve 1. The first channel is vertically arranged and penetrates the upper and lower end faces of the barrel wall. The first channel 10 has opposite ends in the radial direction of the barrel wall and opposite sides in the circumferential direction (circumferential direction).

[0040] Air guide ports 100 penetrating the barrel wall are respectively provided at opposite ends of the first channel 10.

[0041] On opposite sides of the first duct 10, a plurality of first water baffle plates 14 are arranged in a staggered manner. A wavy channel is formed between the plurality of first water baffle plates 14. Both ends of the wavy channel communicate with the air guide ports 100 at both ends of the first duct 10 respectively. A drain port penetrating the cylinder wall is formed at the bottom of the first duct 10. A support plate 15 for installing the sensor body 4 and a water isolation plate 16 arranged below the support plate 15 are provided in the protective sleeve 1.

[0042] As a preferred embodiment, the number of the first ducts 10 is multiple, and the multiple first ducts 10 are arranged along the circumferential direction of the protective sleeve 1.

[0043] In this embodiment, the protective sleeve 1 is cylindrical. The protective sleeve 1 includes an inner ring cylinder 11, an outer ring cylinder 12 and a support plate 13. Among them, the inner ring cylinder and the outer ring cylinder are coaxially arranged. The inner ring cylinder is accommodated in the inner ring hole of the outer ring cylinder. The outer diameter of the inner ring cylinder is smaller than the inner diameter of the outer ring cylinder. A gap is formed between the inner ring cylinder and the outer ring cylinder. The support plate is arranged in the gap, and the support plate supports and connects between the inner ring cylinder and the outer ring cylinder.

[0044] The number of the support plates is multiple. The multiple support plates divide the annular gap between the inner ring cylinder and the outer ring cylinder into a plurality of first ducts. Each duct is vertically arranged and penetrates up and down.

[0045] The annular base 2 is detachably installed at the bottom of the protective sleeve 1. The annular base 2 is formed with a plurality of second ducts 20 arranged vertically and penetrating. The multiple second ducts 20 are arranged along the circumferential direction of the annular base 2. A plurality of second water baffle plates 24 arranged at intervals and a third water baffle plate 25 for shielding the gap between two adjacent second water baffle plates 24 are connected between opposite sides of the second duct 20.

[0046] In this embodiment, the annular base includes an inner ring plate 21, an outer ring plate 22 and a support block 23. Among them, the inner ring plate and the outer ring plate are coaxially arranged. The outer diameter of the inner ring plate is smaller than the outer diameter of the outer ring plate. A gap is formed between the inner ring plate and the outer ring plate. The support block is arranged in the gap between the inner ring plate and the outer ring plate. The support block divides the gap between the inner ring plate and the outer ring plate into a plurality of second ducts.

[0047] The second duct has opposite sides in the circumferential direction of the annular base and opposite ends in the radial direction of the annular base. A row (multiple) of second water baffle plates are connected between opposite sides (i.e., between opposite sides of two adjacent support blocks) of the second duct, and the multiple second water baffle plates are arranged at intervals. A third water baffle plate is arranged above or below the gap between two adjacent second water baffle plates. The third water baffle plate shields the gap between two adjacent second water baffle plates in the vertical direction.

[0048] As a preferred embodiment, the third water baffle is disposed below the gap between two adjacent second water baffles. The second water baffle has a first end and a second end opposite to each other in the radial direction of the annular base; the third water baffle has a first end and a second end opposite to each other in the radial direction of the annular base. One end of the second water baffle close to the axis of the annular base is disposed obliquely downward toward the axis of the annular base. One end of the third water baffle close to the axis of the annular base is disposed obliquely upward toward the axis of the annular base.

[0049] In this embodiment, both the inner cylinder and the outer cylinder are cylinders with openings at both ends. The outer ring plate and the inner ring plate are also cylinders with openings at both ends. The cylinder cover is a hollow cylindrical cover plate. A horizontal middle partition plate 31 is provided in the cavity of the cylinder cover. The middle partition plate divides the cavity in the cylinder cover into an upper cavity and a lower cavity arranged side by side up and down. The multi-cavity setting of the cylinder cover can effectively reduce the temperature of the inner cavity of the inner cylinder of the protective sleeve, so that the sensor body installed on the support plate can operate stably.

[0050] The support plate of the protective sleeve of the sensor protection device of the present invention is used to install the sensor body. The bottom of the isolation plate of the protective sleeve is sleeved with a support rod through a sleeve to place the sensor body in a water-facing environment. In a water-facing environment, when there is a water impact on the outside of the protective sleeve, most of the water is blocked by the outer side walls of the protective sleeve, the cylinder cover and the annular base. Part of the water enters the first channel through the air guide port outside the first channel and is successively blocked by the first water baffles arranged in an offset manner. The water blocked by the first water baffle flows along the plate surface of the first water baffle to the drain port and is discharged to the upper end surface of the annular base. The water on the upper end surface of the annular base then flows into the adjacent two second channels, and finally is discharged to the outside of the annular base through the gap between two adjacent second water baffles and the gap between two adjacent third water baffles. The moisture content of the air after passing through the wavy channel is extremely low, so that the inside of the protective sleeve remains dry. When there is a water impact on the bottom of the annular base from the outside of the annular base, only part of the water enters the second channel through the gap between two adjacent second water baffles and will also be blocked by the third water baffle, so that this part of the water cannot flow upstream into the inner cavity of the protective sleeve. The shielding flange of the cylinder cover of the protective sleeve of the sensor protection device of the present invention is disposed outside the air guide port outside the first channel to prevent the water above the cylinder cover from directly entering the air guide port. In addition, the cylinder cover can prevent ultraviolet rays.

[0051] On the other hand, the inner cavity of the protective sleeve for installing the sensor body is communicated with the outside through the air guide port and the first channel, so that the sensor body can normally detect environmental data such as air. The sensor body can be kept dry under the protection of the sensor protection device of the present invention, the service life of the sensor body is prolonged, and the stable operation of the sensor body is effectively maintained.

[0052] In some embodiments, the first water baffle 14 is perpendicularly disposed with respect to the inner walls on opposite sides of the first duct 10.

[0053] In some embodiments, as Figure 14 shown, the first water baffle 14 is perpendicularly disposed with respect to the axial direction of the first duct 10, that is, the first water baffle is disposed along the circumferential direction of the protective sleeve.

[0054] In this embodiment, the first water baffle 14 has a fixed end and a cantilever end that are opposite to each other. The cantilever end is inclined towards the outside of the protective sleeve 1. The included angle between the first water baffle 14 and the inner walls on opposite sides of the first duct 10 is 45° - 65°. Refer to Figure 13 , after the water vapor outside the outer ring cylinder (indicated by the dashed arrow) enters the first duct through the air guide port, a turbulent flow is generated after being blocked by the inclined first water baffle, disturbing the water flow at the air guide port on the outside of the protective sleeve, reducing the water flow velocity, and further reducing the water flow flowing towards the air guide port on the inside of the protective sleeve.

[0055] As a preferred embodiment, the second water baffle 24 and the third water baffle 25 in the annular base are respectively inclined, and the inclination directions of the second water baffle 24 and the third water baffle 25 are opposite to each other.

[0056] In this embodiment, the annular base is coaxially disposed with the protective sleeve and is detachably sleeved and connected. The cylinder cover is coaxially disposed with the protective sleeve and is detachably sleeved and connected. The cylinder cover 3 is detachably installed on the top of the protective sleeve 1. An obliquely downwardly disposed shielding flange 32 is formed on the outer edge of the cylinder cover 3. The number of the shielding flanges is three layers, and the three layers of shielding flanges are spaced along the axial direction of the cylinder cover.

[0057] Furthermore, the annular base and the protective sleeve are detachably connected by bolts, and the cylinder cover and the cylinder cover bolts are detachably connected.

[0058] In some embodiments, the outside of the outer ring cylinder is covered with a filter net, thereby preventing larger foreign objects in the outside world from entering the first duct.

[0059] As a preferred embodiment, a filter net is provided in the air guide port on the outside of the protective sleeve. On the one hand, the filter net prevents foreign objects from entering the first duct, and on the other hand, it can reduce the water flow velocity entering the first duct.

[0060] In this embodiment, the outer diameter of the support plate is smaller than the inner diameter of the inner ring cylinder, and a gap is provided between the outer edge of the support plate and the inner wall of the inner ring cylinder. Specifically, a plurality of bumps are provided on the inner wall of the inner ring cylinder along the circumferential direction of the inner ring cylinder. A notch is formed in the upper portion of the side of the bump away from the inner wall of the inner ring cylinder. The outer edge of the support plate is embedded in the notches of the plurality of bumps. The residual water vapor in the inner ring cylinder can condense on the inner wall of the inner ring cylinder and flow down along the inner wall of the inner ring cylinder to the isolation plate. The drain port is strip-shaped and arranged in the vertical direction, and the isolation plate is arranged in the middle of the drain port. Therefore, the water flowing down along the inner wall of the inner ring cylinder can be discharged to the outside of the protective sleeve through the drain port.

[0061] In this embodiment, at least three first water baffle plates are provided in each first channel, and at least two second water baffle plates and third water baffle plates are provided in the second channel.

[0062] The present invention provides a sensor, including: the aforementioned sensor protection device and the sensor body. The sensor body is a sensor for detecting environmental data such as air, temperature, humidity, and gas content.

[0063] The sensor body is installed on the support plate of the sensor protection device. Further, the sensor of the present invention further includes two ventilation fans. The two ventilation fans are installed on the support plate. The two ventilation fans are respectively arranged on opposite sides of the sensor body.

[0064] In this embodiment, the two ventilation fans are respectively aligned with the air guide ports on opposite sides of the sensor body. The two ventilation fans simultaneously discharge the gas in the inner ring cylinder to the outside of the sensor protection device through the wavy channel. The sensor body is arranged between the two ventilation fans. After the two ventilation fans are simultaneously turned on, a negative pressure is formed in the space between the two ventilation fans, making the detection of environmental data by the sensor body more accurate.

[0065] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principle. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A sensor protection device, characterized in that, Comprising: A protective sleeve, which includes an inner ring cylinder, an outer ring cylinder and a support plate. A gap is formed between the inner ring cylinder and the outer ring cylinder. The support plate is arranged in the gap. The number of the support plates is multiple. The multiple support plates divide the annular gap between the inner ring cylinder and the outer ring cylinder into multiple first channels. Each channel is vertically arranged and penetrates up and down. The first channel has opposite ends in the radial direction of the cylinder wall and opposite sides in the circumferential direction. Air guide openings penetrating the cylinder wall are respectively formed at the opposite ends of the first channel. Multiple first water baffle plates are arranged in a staggered manner on the opposite sides of the first channel. A wavy channel is formed between the multiple first water baffle plates. The two ends of the wavy channel are respectively communicated with the air guide openings at the two ends of the first channel. A drain opening penetrating the cylinder wall is formed at the bottom of the first channel. A support plate for installing the sensor body and a water isolation plate arranged below the support plate in the protective sleeve; An annular base, which is detachably installed at the bottom of the protective sleeve. The annular base is formed with multiple second channels which are vertically arranged and penetrate. The multiple second channels are arranged along the circumferential direction of the annular base. Multiple second water baffle plates arranged at intervals and a third water baffle plate for shielding the gap between two adjacent second water baffle plates are connected between the opposite sides of the second channel; And A cylinder cover, which is detachably installed at the top of the protective sleeve. An inclined downward shielding flange is formed at the outer edge of the cylinder cover.

2. The sensor protection device according to claim 1, wherein The number of the first channels is multiple. The multiple first channels are arranged along the circumferential direction of the protective sleeve.

3. The sensor protection device according to claim 1, wherein The first water baffle plate is vertically arranged with the inner walls of the opposite sides of the first channel.

4. The sensor protection device according to claim 1, wherein, The first water baffle plate has a fixed end and a cantilever end which are opposite. The cantilever end is inclined towards the outside of the protective sleeve.

5. The sensor protection device according to claim 4, wherein, The included angle between the first water baffle plate and the inner walls of the opposite sides of the first channel is 45°-65°.

6. The sensor protection device according to claim 1, wherein The first channel vertically penetrates the cylinder wall.

7. The sensor protection device according to claim 1, wherein The second water baffle plate and the third water baffle plate are respectively inclined, and the inclination directions of the second water baffle plate and the third water baffle plate are opposite.

8. The sensor protection device according to claim 1, characterized in that, An upper cavity is formed inside the cylinder cover and a lower cavity is arranged below the upper cavity.

9. A sensor, characterized in that, Comprising: The sensor protection device according to any one of claims 1-8; And A sensor body, which is installed on the support plate of the sensor protection device.

10. The sensor protection device according to claim 9, wherein, Two ventilation fans installed on the support plate are further included. The two ventilation fans are respectively arranged on the opposite sides of the sensor body.

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