Open type infrared optical turbidity sensor

Abstract

The utility model discloses an open type infrared optical turbidity sensor, and relates to the technical field of turbidity sensors. The open type infrared optical turbidity sensor comprises a sensor shell, a first connector is arranged at the top end of the sensor shell, external threads are arranged on the outer wall of the first connector, an anti-leakage protective sleeve is arranged in the first connector and adopts an opening design, and a wiring end of an internal structure of the anti-leakage protective sleeve is electrically connected with a wire. The bottom end of the sensor shell is in threaded connection with a sealing cover, the sensor shell and the sealing cover are sealed through a sealing rubber ring, the bottom end of the sealing cover is provided with a second connector, and the outer wall of the bottom of the second connector is fixedly connected with a third connector. According to the utility model, the infrared transceiving principle is adopted to work, so that the interference of ambient light on the detection result is effectively avoided; the open type design is adopted, so that testing and cleaning are facilitated; and a fully-sealed structural design is adopted to ensure that the internal environment of the sensor is dry and clean.

Description

Technical Field

[0001] The utility model relates to the technical field of turbidity sensors, in particular to an open-type infrared optical turbidity sensor. Background Technique

[0002] A turbidity sensor is an intelligent monitoring instrument that can measure and reflect the degree of obstruction that suspended substances in water cause to the transmission of light, that is, the transparency or clarity of water. Turbidity sensors are mainly used to measure the turbidity of water in products such as washing machines and dishwashers. By measuring the turbidity of water, the cleanliness of the items being washed is judged, so as to determine the optimal washing time.

[0003] Some existing turbidity sensors have insufficient sealing performance during use, which easily leads to leakage of the test environment, affecting the accuracy and stability of measurement results, and also reducing the durability of the sensor. Content of the Utility Model

[0004] The purpose of the utility model is to provide an open-type infrared optical turbidity sensor, which solves the technical problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An open-type infrared optical turbidity sensor, including a sensor housing, a first connector is arranged at the top end of the sensor housing, an external thread is arranged on the outer wall of the first connector, an anti-leakage protection sleeve is arranged inside the first connector, the anti-leakage protection sleeve adopts an open design, a wiring terminal inside the structure of the anti-leakage protection sleeve is electrically connected to a wire, the bottom end of the sensor housing is threadedly connected with a sealing cover, the sensor housing and the sealing cover are sealed by a sealing rubber ring, a second connector is arranged at the bottom end of the sealing cover, a third connector is fixedly connected to the bottom outer wall of the second connector, external threads are arranged on the outer walls of the second connector and the third connector, a bracket is sleeved on the outer wall of the second connector, a fastening nut is threadedly connected to the outer wall of the second connector, the fastening nut is arranged below the bracket, the bracket is fixed on the second connector through the fastening nut, a sealing nut is threadedly connected to the outer wall of the third connector, a clamping claw is arranged inside the sealing nut, a waterproof rubber sleeve is arranged inside the clamping claw, one end of the wire passes through the waterproof rubber sleeve, the clamping claw and the sealing nut and extends to the outside of the sealing nut, and the sealing nut is hermetically connected to the third connector through the waterproof rubber sleeve and the clamping claw.

[0006] Preferably, an infrared LED light source, a transmitted light detector and a scattered light detector are arranged inside the anti-leakage protection sleeve.

[0007] Preferably, an insertion port is opened on the bottom outer wall of the bracket, the radius of the insertion port is larger than the outer diameter of the third connector, and an installation port is opened on the side wall of the bracket.

[0008] Preferably, a sealing rubber ring is sleeved on the outer wall of the sealing cover, and the outer wall of the sealing rubber ring abuts against the outer wall of the sensor housing.

[0009] Preferably, the outer wall of the clamping claw abuts against the inner wall of the sealing nut, and the outer wall of the waterproof rubber sleeve abuts against the inner wall of the clamping claw.

[0010] Preferably, the sensor housing, the sealing cover, the first connector, the second connector, the third connector, the bracket, and the sealing nut are all made of stainless steel.

[0011] Compared with the related art, an open-type infrared optical turbidity sensor provided by the present utility model has the following beneficial effects:

[0012] 1. Adopting an open-type design not only facilitates the operation during the test but also makes the cleaning and maintenance simpler and faster.

[0013] 2. The front-end threaded structure allows the probe to be easily installed in a buried and sealed manner, ensuring the sealing of the test environment and the accuracy of the measurement results, while enhancing the durability of the sensor.

[0014] 3. The design of the bracket not only facilitates the wall-mounted installation of the sensor but also allows the user to easily adjust the installation height according to actual needs, increasing the flexibility and convenience of the installation.

[0015] 4. Adopting a fully sealed structure design ensures the dryness and cleanliness of the internal environment of the sensor, thereby guaranteeing the measurement accuracy and the safety of the circuit components.

[0016] 5. Operating based on the infrared transceiver principle effectively avoids the interference of ambient light on the detection results, improving the accuracy and reliability of the measurement.

[0017] 6. The overall structure is made of high-quality metal materials, which not only endows the sensor with excellent durability and corrosion resistance but also effectively avoids interference, ensuring the stability and accuracy of the measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a bottom view structural schematic diagram of the present utility model;

[0020] Figure 3 is an exploded structural schematic diagram of the sensor housing and the sealing cover of the present utility model;

[0021] Figure 4 is a partial exploded structural schematic diagram of the present utility model;

[0022] Figure 5 For the present utility model Figure 4 Schematic enlarged structure diagram at position A in

[0023] Figure 6 Schematic structure diagram of the bracket of the present utility model.

[0024] In the figure: 1, sensor housing; 2, first connector; 3, anti-leakage protection sleeve; 4, electric wire; 5, sealing cover; 6, sealing rubber ring; 7, second connector; 8, third connector; 9, bracket; 901, insertion interface; 902, mounting opening; 10, fastening nut; 11, sealing nut; 12, clamping claw; 13, waterproof rubber sleeve. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0026] Embodiment:

[0027] Please refer to Figures 1 - 6 , the present utility model provides a technical solution: an open-type infrared optical turbidity sensor, including a sensor housing 1, a first connector 2 is arranged at the top end of the sensor housing 1, an external thread is arranged on the outer wall of the first connector 2, an anti-leakage protection sleeve 3 is arranged inside the first connector 2, the anti-leakage protection sleeve 3 adopts an open design, a wiring terminal of the internal structure of the anti-leakage protection sleeve 3 is electrically connected to an electric wire 4, a sealing cover 5 is threadedly connected to the bottom end of the sensor housing 1, the sensor housing 1 and the sealing cover 5 are sealed by a sealing rubber ring 6, a second connector 7 is arranged at the bottom end of the sealing cover 5, a third connector 8 is fixedly connected to the bottom outer wall of the second connector 7, external threads are arranged on the outer walls of the second connector 7 and the third connector 8, a bracket 9 is sleeved on the outer wall of the second connector 7, a fastening nut 10 is threadedly connected to the outer wall of the second connector 7, the fastening nut 10 is arranged below the bracket 9, the bracket 9 is fixed to the second connector 7 by the fastening nut 10, a sealing nut 11 is threadedly connected to the outer wall of the third connector 8, a clamping claw 12 is arranged inside the sealing nut 11, a waterproof rubber sleeve 13 is arranged inside the clamping claw 12, one end of the electric wire 4 passes through the waterproof rubber sleeve 13, the clamping claw 12, and the sealing nut 11 and extends to the outside of the sealing nut 11, and the sealing nut 11 is hermetically connected to the third connector 8 through the waterproof rubber sleeve 13 and the clamping claw 12.

[0028] In this implementation, an infrared LED light source is used as the emission detection light source, and a transmitted light detector and a scattered light detector are used to monitor the situation of light passing through the liquid. The sensor transmits the signals collected by the detectors to an external processing device through wire 4. Wire 4 passes through the waterproof rubber sleeve 13, the clamping claw 12, and the sealing nut 11, and these components together form a waterproof, dustproof, and robust wire channel. The design of the waterproof rubber sleeve 13 and the clamping claw 12 further enhances the sealing performance of the wire channel, preventing moisture and contaminants from entering the interior of the sensor and protecting the sensor circuit and components from damage. A tight seal is achieved between the sensor housing 1 and the sealing cover 5 through a sealing rubber ring 6 to prevent liquid from seeping into the interior of the sensor.

[0029] Among them, an infrared LED light source, a transmitted light detector, and a scattered light detector are arranged inside the anti-leakage protection sleeve 3.

[0030] In this implementation, an infrared LED light source, a transmitted light detector, and a scattered light detector are used to make light pass through the liquid and monitor the situation of light passing through the liquid. The infrared transceiver principle is used to avoid the influence of ambient light on the detection results.

[0031] Among them, an insertion interface 901 is provided on the outer wall of the bottom of the bracket 9. The radius of the insertion interface 901 is larger than the outer diameter of the third connector 8, and an installation opening 902 is provided on the side wall of the bracket 9.

[0032] In this implementation, the provision of the insertion interface 901 facilitates the socketing of the bracket 9 outside the third connector 8, and the installation opening 902 facilitates the connection of the bracket 9 to other structures. The threaded bracket 9 is convenient for wall mounting and height adjustment.

[0033] Among them, a sealing rubber ring 6 is sleeved on the outer wall of the sealing cover 5, and the outer wall of the sealing rubber ring 6 abuts against the outer wall of the sensor housing 1.

[0034] In this implementation, a tight seal is achieved between the sensor housing 1 and the sealing cover 5 through a sealing rubber ring 6 to prevent liquid from seeping into the interior of the sensor.

[0035] Among them, the outer wall of the clamping claw 12 abuts against the inner wall of the sealing nut 11, and the outer wall of the waterproof rubber sleeve 13 abuts against the inner wall of the clamping claw 12.

[0036] In this implementation, wire 4 passes through the waterproof rubber sleeve 13, the clamping claw 12, and the sealing nut 11. These components together form a waterproof, dustproof, and robust wire channel to ensure that the signal is not interfered by the external environment during transmission. The design of the waterproof rubber sleeve 13 and the clamping claw 12 further enhances the sealing performance of the wire channel, preventing moisture and contaminants from entering the interior of the sensor and protecting the sensor circuit and components from damage.

[0037] Among them, the sensor housing 1, the sealing cover 5, the first connector 2, the second connector 7, the third connector 8, the bracket 9, and the sealing nut 11 are all made of stainless steel.

[0038] In this implementation scheme, stainless steel has excellent corrosion resistance and mechanical strength, and can maintain the stability and durability of the sensor in various harsh environments. The all-metal design effectively avoids interference.

[0039] Working principle: The anti-leakage protective sleeve 3 internally integrates an infrared LED light source, a transmitted light detector, and a scattered light detector. The infrared LED light source is used to emit the detection light source, and the transmitted light detector and the scattered light detector are used to monitor the situation of the light passing through the liquid. The sensor transmits the signals collected by the detector to an external processing device through the wire 4. The wire 4 passes through the waterproof rubber sleeve 13, the clamping claw 12, and the sealing nut 11. These components together form a waterproof, dustproof, and sturdy wire channel. The design of the waterproof rubber sleeve 13 and the clamping claw 12 further enhances the sealing performance of the wire channel, preventing moisture and contaminants from entering the inside of the sensor and protecting the sensor circuit and components from damage. A tight seal is achieved between the sensor housing 1 and the sealing cover 5 through the sealing rubber ring 6 to prevent liquid from seeping into the inside of the sensor.

[0040] As mentioned above, it is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An open-type infrared optical turbidity sensor, comprising a sensor housing (1), characterized in that: At the top of the sensor housing (1), there is a first connector (2). The outer wall of the first connector (2) is provided with an external thread. Inside the first connector (2), there is a leak-proof protective sleeve (3). The leak-proof protective sleeve (3) is designed with an opening. The wiring terminal of the internal structure of the leak-proof protective sleeve (3) is electrically connected to a wire (4). The bottom end of the sensor housing (1) is threadedly connected to a sealing cover (5). The sensor housing (1) and the sealing cover (5) are sealed by a sealing rubber ring (6). At the bottom end of the sealing cover (5), there is a second connector (7). At the bottom outer wall of the second connector (7), there is a third connector (8) fixedly connected. The outer walls of the second connector (7) and the third connector (8) are both provided with external threads. A bracket (9) is sleeved on the outer wall of the second connector (7). A fastening nut (10) is threadedly connected to the outer wall of the second connector (7). The fastening nut (10) is arranged below the bracket (9). The bracket (9) is fixed to the second connector (7) by the fastening nut (10). A sealing nut (11) is threadedly connected to the outer wall of the third connector (8). Inside the sealing nut (11), there is a clamping claw (12). Inside the clamping claw (12), there is a waterproof rubber sleeve (13). One end of the wire (4) passes through the waterproof rubber sleeve (13), the clamping claw (12), and the sealing nut (11), and extends to the outside of the sealing nut (11). The sealing nut (11) is hermetically connected to the third connector (8) through the waterproof rubber sleeve (13) and the clamping claw (12).

2. The open-type infrared optical turbidity sensor according to claim 1, wherein: Inside the leak-proof protective sleeve (3), there are an infrared LED light source, a transmitted light detector, and a scattered light detector.

3. The open-type infrared optical turbidity sensor according to claim 1, wherein: At the bottom outer wall of the bracket (9), there is an insertion port (901). The radius of the insertion port (901) is larger than the outer diameter of the third connector (8). On the side wall of the bracket (9), there is an installation port (902).

4. An open-type infrared optical turbidity sensor according to claim 1, characterized in that: A sealing rubber ring (6) is sleeved on the outer wall of the sealing cover (5). The outer wall of the sealing rubber ring (6) abuts against the outer wall of the sensor housing (1).

5. An open-type infrared optical turbidity sensor according to claim 1, characterized in that: The outer wall of the clamping claw (12) abuts against the inner wall of the sealing nut (11). The outer wall of the waterproof rubber sleeve (13) abuts against the inner wall of the clamping claw (12).

6. The open-type infrared optical turbidity sensor according to claim 1, wherein: The sensor housing (1), the sealing cover (5), the first connector (2), the second connector (7), the third connector (8), the bracket (9), and the sealing nut (11) are all made of stainless steel.

Images