Humidity sensor with composite structure

Abstract

The utility model provides a humidity sensor with a composite structure, which comprises a sensor body, four sensor probes are fixed on the middle surface of the sensor body at equal intervals, a connecting wire is fixed at the top of the sensor body and is electrically connected with the sensor probes, a base is fixed at the bottom of the sensor body, and the base is electrically connected with the sensor probes. The sensor body is provided with a sensor probe, a dustproof net is rotatably mounted on the periphery of the sensor probe, four arc frames are fixed on the surface of the dustproof net on the sensor body at equal intervals, the dustproof net penetrates out of the arc frames in a sliding manner, and blowing frames are arranged on the inner sides of the arc frames. The four sensor probes are protected through the annular dustproof net, the surface of the fed dustproof net is cleaned through cooperation of the driving assembly and the arc frame, adsorbed dust is cleaned out of the bottom of the arc frame, protection of the humidity sensor is kept, and meanwhile cleaning of the dustproof net is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to humidity sensor technical field, concretely is a composite structure humidity sensor. BACKGROUND

[0002] The wet-sensitive element is the simplest humidity sensor. The wet-sensitive element mainly has two categories of resistance type and capacitance type. The wet-sensitive resistance is characterized in that a film made of a wet-sensitive material is covered on a substrate, when water vapor in the air is adsorbed on the wet-sensitive film, the resistivity and resistance value of the element change, and the humidity can be measured by using this characteristic. The humidity sensor is non-sealed, in order to protect the accuracy and stability of measurement, it should be avoided to use in the environment with more dust.

[0003] The patent CN219891145U provides a humidity sensor structure, by the setting of the limiting block and the sliding block, after a large amount of dust is accumulated on the dustproof filter screen layer, the connecting plate can be rotated clockwise, so that the connecting plate drives four connecting rods to rotate clockwise around the wet-sensitive element, thereby driving four sliding blocks to rotate clockwise around the wet-sensitive element in the inside of the sliding groove. When the sliding block rotates to not between the limiting block and the inner wall of the sliding groove, the connecting plate can be pulled out outward, thereby driving four connecting rods to move outward, thereby driving the sliding block to move outward and separate from the sliding groove, thereby facilitating the replacement of the dustproof filter screen layer, ensuring the accuracy of the measurement data of the humidity sensor, and enabling the humidity sensor to be used normally for a long time.

[0004] The above-mentioned scheme has the following disadvantages: the dustproof filter screen layer needs to be disassembled and replaced to maintain the normal use of the sensor, so it is inconvenient and cannot be used quickly. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a composite structure humidity sensor to solve the problems in the background art. The utility model has a novel structure, which protects four sensor probes by a dustproof net in the form of a ring. The driving assembly and the arc frame cooperate to clean the surface of the dustproof net, remove the adsorbed dust from the bottom of the arc frame, and protect the humidity sensor. At the same time, the dustproof net is easier to clean.

[0006] In order to achieve the above object, the utility model is through the following technical scheme to realize: a composite structure humidity sensor, four sensor probes are fixedly arranged on the middle surface of the sensor body, a connecting line is fixedly arranged on the top of the sensor body, and the connecting line is electrically connected with the sensor probe, a base is fixedly arranged on the bottom of the sensor body, a dustproof net is rotatably arranged on the periphery of the sensor probe, four arc frames are fixedly arranged on the surface of the dustproof net, the dustproof net slides out of the arc frame, a blowing frame is arranged on the inner side of the arc frame, a fan is rotatably arranged in the blowing frame, a driving assembly is arranged on the bottom of the sensor body, the driving assembly comprises a first bevel gear, a first bevel gear is arranged at the center of the bottom of the sensor body, four second bevel gears are equidistantly connected with the top of the first bevel gear, and the second bevel gear is in transmission connection with the driving shaft of the fan.

[0007] Further, the top and bottom of the dustproof net are fixedly provided with a circular ring, and the circular ring is fixedly arranged in the sensor body.

[0008] Further, the arc frame is slidably provided with a scraper on the outer surface of the dustproof net, the scraper is in sliding contact with the outer surface of the dustproof net, and the sensor body is provided with an exhaust port at the bottom of the scraper.

[0009] Further, the blowing frame is provided with a blowing port on the surface of the side facing the dustproof net, a moving plate is slidably arranged in the blowing frame, the moving plate is fixedly provided with a ring rope on both sides, the ring rope passes through the two groups of circular rings on the dustproof net, and the scraper is fixedly connected with the other side of the ring rope.

[0010] Further, the driving shaft of the fan is fixedly provided with a rotating frame, and the rotating frame is rotatably provided with a sliding frame on the top through a rotating shaft.

[0011] Further, the driving assembly further comprises a driving motor, the driving motor is fixedly arranged at the center of the bottom of the sensor body, and the output end of the driving motor is fixedly connected with the first bevel gear.

[0012] Further, the driving shaft of the fan is fixedly provided with a transmission belt, the other side of the transmission belt passes out of the bottom of the sensor body, and the shaft rod is fixedly arranged between the bottom pulley of the transmission belt and the second bevel gear.

[0013] Further, the scraper is fixedly provided with a return spring on both sides, and the bottom of the return spring is fixedly connected with the bottom of the arc frame.

[0014] The utility model has the advantages of the following:

[0015] 1. The utility model discloses a first bevel gear is driven by drive motor, and the first bevel gear is engaged with second bevel gear, and second bevel gear rotates with the axle rod synchronously, and the axle rod drives the fan rotation through the transmission belt, the bottom of blowing frame is provided with the air inlet here, and the flow of air is convenient, and the blowing of fan blows out through the blowing port, and the dust that sticks is blown out from the inside of dust screen towards the outside, and the cleaning of scraper is convenient.

[0016] 2. The utility model discloses the rotation of fan when the slewing ring rotates synchronously, and the arc frame slides along the surface of moving plate, and draws moving plate reciprocatingly along the inner wall of blowing frame, because the connection of ring rope and moving plate, the scraper of other side slides along the surface of dust screen, and the dust on dust screen is scraped down, and is cleaned out from the discharge port.

[0017] 3. The utility model discloses the rotation of dust screen is driven through the conversion, and the surface of different dust screen corresponds the outside of sensor probe, and keeps the surface of dust screen from being blocked by dust.

[0018] 4. The utility model discloses relative to prior art, four sensor probes are protected through annular dust screen, and the surface of dust screen that is sent in is cleaned through the cooperation of drive assembly and arc frame, and the dust that is adsorbed is cleaned out the bottom of arc frame, keeps the protection of humidity sensor, and it is more convenient to clean dust screen. ACCURATE DRAWINGS

[0019] Figure 1 It is the whole structure schematic drawing of a composite structure humidity sensor of the utility model;

[0020] Figure 2 It is the sensor body bottom structure schematic drawing of a composite structure humidity sensor of the utility model;

[0021] Figure 3 It is the drive assembly structure schematic drawing of a composite structure humidity sensor of the utility model;

[0022] Figure 4 It is the sensor body internal structure schematic drawing of a composite structure humidity sensor of the utility model;

[0023] Figure 5 It is the scraper and dust screen connection schematic drawing of a composite structure humidity sensor of the utility model;

[0024] Figure 6 It is the arc frame internal structure schematic drawing of a composite structure humidity sensor of the utility model.

[0025] In the figure: 1, sensor body; 11, connecting line; 12, rotating ring; 13, base; 14, discharge port; 15, sensor probe; 2, dust screen; 21, circular ring; 3, arc frame; 31, blowing frame; 32, blowing port; 34, scraper; 35, ring rope; 36, reset spring; 37, fan; 38, rotating frame; 39, sliding frame; 310, moving plate; 4, driving assembly; 41, driving motor; 42, first bevel gear; 43, second bevel gear; 44, shaft; 45, transmission belt. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0027] Please refer to Figures 1 to 6 The utility model provides a kind of technical scheme: a composite structure humidity sensor, including sensor body 1, it is characterized in that: four sensor probes 15 are fixed equidistantly on the middle surface of the sensor body 1, the top of the sensor body 1 is fixed with connecting line 11, and connecting line 11 is electrically connected with sensor probe 15, the bottom of the sensor body 1 is fixed with base 13, the sensor body 1 is rotatably installed with dust screen 2 in the periphery of sensor probe 15, four arc frames 3 are fixed equidistantly on the surface of the dust screen 2 of the sensor body 1, the dust screen 2 slides out of arc frame 3, blowing frame 31 is arranged on the inner side of arc frame 3, and fan 37 is rotatably installed in the inside of blowing frame 31 by bearing, the bottom of the sensor body 1 is equipped with driving assembly 4, and the driving assembly 4 includes first bevel gear 42, the bottom of the sensor body 1 is equipped with first bevel gear 42, and the top of first bevel gear 42 is equidistantly meshed with four second bevel gears 43, and the second bevel gear 43 is drivingly connected with the drive shaft of fan 37, when using device, sensor probe 15 monitors environmental humidity, data transmission is carried out by connecting line 11, dust screen 2 is used for dust protection to sensor probe 15, after a period of time, manually rotate dust screen 2, the surface of dust screen 2 that needs to be cleaned is sent into arc block inside, and dust screen 2 is cleaned by driving assembly 4.

[0028] In the embodiment, circular ring 21 is fixed on the top and bottom of dust screen 2, and circular ring 21 is fixedly installed in the inside of sensor body 1, rotating ring 12 is rotatably installed on the top of sensor body 1, and rotating ring 12 is fixedly connected with dust screen 2, different surfaces of dust screen 2 are corresponded to the outside of sensor probe 15 by rotating dust screen 2, so that the surface of dust screen 2 is not blocked by dust.

[0029] The arc frame 3 is slidably installed with a scraper 34 corresponding to the outer surface of the dust screen 2, the scraper 34 is in sliding contact with the outer surface of the dust screen 2, the sensor body 1 is provided with an exhaust port 14 corresponding to the bottom of the scraper 34, the surface of the air blowing frame 31 on the side facing the dust screen 2 is provided with an air blowing port 32, the inside of the air blowing frame 31 is slidably installed with a moving plate 310, the two sides of the moving plate 310 are fixedly connected with a ring rope 35, the top and bottom of the ring rope 35 are slidably connected with the upper and lower two groups of circular rings 21 of the dust screen 2, the other side of the scraper 34 is fixedly connected with the ring rope 35, the two sides of the scraper 34 are fixedly connected with a return spring 36, and the bottom of the return spring 36 is fixedly connected with the bottom of the arc frame 3. The moving plate 310 rotates with the rotating frame 38, the ring rope 35 moves, the scraper 34 slides along the outer side of the dust screen 2 to clean the dust, and when the scraper 34 moves upward, the return spring 36 assists the movement of the scraper 34.

[0030] In this embodiment, the driving shaft surface of the fan 37 is fixedly connected with a rotating frame 38, and the top of the rotating frame 38 is rotatably installed with a sliding frame 39, the sliding frame 39 is slidably connected with the back surface of the moving plate 310, the driving assembly 4 further comprises a driving motor 41, the center bottom of the sensor body 1 is fixedly connected with the driving motor 41, and the output end of the driving motor 41 is fixedly connected with a first bevel gear 42, the driving shaft surface of the fan 37 is installed with a transmission belt 45, the other side of the transmission belt 45 is connected with a shaft 44 between the bottom pulley of the transmission belt 45 and the second bevel gear 43, after the dust screen 2 with dust adhering to the surface is sent into the inside of the arc frame 3, the driving motor 41 is started to drive the first bevel gear 42, the first bevel gear 42 is engaged with the second bevel gear 43, the second bevel gear 43 is synchronously rotated with the shaft 44, the shaft 44 drives the fan 37 to rotate through the transmission belt 45, the bottom of the air blowing frame 31 is provided with an air inlet, which facilitates the flow of air, the fan 37 blows out through the air blowing port 32, and the adhering dust is blown out from the inside of the dust screen 2 to the outside, which facilitates the cleaning of the scraper 34, when the fan 37 rotates, the rotating frame 38 synchronously rotates, the arc frame 3 slides along the surface of the moving plate 310, and the moving plate 310 reciprocally moves along the inner wall of the air blowing frame 31, because the ring rope 35 is connected with the moving plate 310, the other side of the scraper 34 slides along the surface of the dust screen 2 to scrape the dust on the dust screen 2, and is cleaned out from the exhaust port 14.

[0031] When the device is used, the sensor probe 15 monitors the ambient humidity, data transmission is carried out through the connecting line 11, the sensor probe 15 is protected from dust through the dust screen 2, after a period of time, the dust screen 2 is driven to rotate by the conversion, the surface of different dust screens 2 is corresponded to the outside of the sensor probe 15, the surface of the dust screen 2 is kept from being blocked by dust, the dust screen 2 with dust adhered on the surface is sent into the arc frame 3, then the driving motor 41 is started to drive the first bevel gear 42, the first bevel gear 42 is engaged with the second bevel gear 43, the second bevel gear 43 rotates synchronously with the shaft 44, the shaft 44 drives the fan 37 to rotate through the transmission belt 45, the bottom of the blowing frame 31 is provided with an air inlet, air flow is facilitated, the blowing of the fan 37 is blown out through the blowing port 32, dust adhered is blown out from the inside to the outside of the dust screen 2, the scraper 34 is facilitated to clean, the rotating frame 38 rotates synchronously when the fan 37 rotates, the arc frame 3 slides along the surface of the moving plate 310, and the moving plate 310 reciprocates along the inner wall of the blowing frame 31, because the ring rope 35 is connected with the moving plate 310, the scraper 34 on the other side slides along the surface of the dust screen 2, dust on the dust screen 2 is scraped off, and is cleaned out from the discharge port 14.

[0032] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic features of the present application.

[0033] In addition, it should be understood that, although the present application is described in the specification, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments which can be understood by those skilled in the art.

Claims

1. A composite humidity sensor, comprising a sensor body (1), characterized in that: Four sensor probes (15) are fixed at equal intervals on the middle surface of the sensor body (1). A connecting wire (11) is fixed on the top of the sensor body (1) and is electrically connected to the sensor probes (15). A base (13) is fixed on the bottom of the sensor body (1). A dustproof net (2) is rotatably installed on the sensor body (1) around the sensor probes (15). Four arc frames (3) are fixed at equal intervals on the surface of the dustproof net (2) on the sensor body (1). The dustproof net (2) slides through. An arc frame (3) is provided on the inner side of the arc frame (3), and a fan (37) is rotatably mounted inside the fan frame (31) via a bearing. A drive assembly (4) is provided at the bottom of the sensor body (1). The drive assembly (4) includes a first bevel gear (42). The first bevel gear (42) is provided at the center of the bottom of the sensor body (1), and four second bevel gears (43) are equidistantly meshed at the top of the first bevel gear (42). The second bevel gears (43) are connected to the drive shaft of the fan (37) via a transmission.

2. The composite structure humidity sensor according to claim 1, characterized in that: The dustproof net (2) has a ring (21) fixed at the top and bottom, and the ring (21) is fixedly installed inside the sensor body (1). The sensor body (1) has a rotating ring (12) rotatably installed on the top, and the rotating ring (12) is fixedly connected to the dustproof net (2).

3. The composite structure humidity sensor according to claim 1, characterized in that: The arc frame (3) is slidably mounted with a scraper (34) on the outer surface of the dustproof net (2). The scraper (34) slides in contact with the outer surface of the dustproof net (2). The sensor body (1) is provided with an outlet (14) at the bottom of the scraper (34).

4. A composite structure humidity sensor according to claim 3, characterized in that: The blower frame (31) has an air outlet (32) on the surface facing the dustproof net (2). A movable plate (310) is slidably installed inside the blower frame (31). A ring rope (35) is fixed on both sides of the movable plate (310). The top and bottom of the ring rope (35) slide through the upper and lower rings (21) of the dustproof net (2). The scraper (34) is fixedly connected to the other side of the ring rope (35).

5. A composite humidity sensor according to claim 4, characterized in that: A rotating frame (38) is fixed on the drive shaft surface of the fan (37), and a sliding frame (39) is rotatably mounted on the top of the rotating frame (38) via a rotating shaft. The sliding frame (39) is slidably connected to the back of the moving plate (310).

6. A composite humidity sensor according to claim 5, characterized in that: The drive assembly (4) also includes a drive motor (41), which is fixed at the bottom center of the sensor body (1), and the output end of the drive motor (41) is fixedly connected to the first bevel gear (42).

7. A composite humidity sensor according to claim 6, characterized in that: A drive belt (45) is mounted on the drive shaft surface of the fan (37). The pulley on the other side of the drive belt (45) extends out of the bottom of the sensor body (1). A shaft (44) is fixed between the bottom pulley of the drive belt (45) and the second bevel gear (43).

8. A composite structure humidity sensor according to claim 3, characterized in that: The scraper (34) is fixed with a return spring (36) on both sides, and the bottom of the return spring (36) is fixedly connected to the bottom of the arc frame (3).

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