Liquid detection optical sensor

Abstract

The utility model discloses a liquid detection optical sensor which comprises a transparent pipeline, an optical sensor arranged on one side of the transparent pipeline and a lantern ring used for connecting the optical sensor with the transparent pipeline, and a supporting structure is arranged at the bottom of the optical sensor. The supporting structure comprises a supporting frame arranged on the surface of the transparent pipeline in a surrounding mode, the surface of the supporting frame is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is movably connected with a connecting block through a pin shaft, and the end, away from the output end of the electric telescopic rod, of the connecting block is fixedly connected with the bottom of the optical sensor. Through the combination of the electric telescopic rod and the supporting frame, automatic adjustment of the height of the optical sensor is achieved, the sensor can flexibly meet the detection requirements of different liquid level heights, the adaptability and flexibility of equipment are improved, meanwhile, the supporting frame surrounds the surface of the transparent pipeline, the stability of the structure is improved, and the cost is reduced. And the stability of the sensor in the moving process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid detection, in particular to a liquid detection optical sensor. Background Technique

[0002] A liquid detection optical sensor, especially an optoelectronic liquid level sensor, is a non-contact sensor that uses the optical principle to detect the liquid level. The optoelectronic liquid level sensor detects the liquid level through the optical signal between the transmitter and the receiver. The transmitter emits light into the container. When the light encounters the liquid surface, reflection or refraction will occur. At this time, the receiver will receive the signal and convert it into an electrical signal for output. By measuring the change of the electrical signal, the height of the liquid level can be accurately determined.

[0003] Some liquid detection optical sensors are installed on the surface of a transparent pipeline to observe the liquid level state inside the pipeline. For example, the patent application number disclosed on the Chinese Patent Network is: 202120994964.8, and the patent name is: Non-contact optoelectronic liquid level sensor, including: a housing assembly, a PCB board, an opposing tube assembly, and a wire gasket. The PCB board is arranged inside the housing assembly. The opposing tube assembly includes: a transmitting opposing tube and a receiving opposing tube. The transmitting opposing tube is welded on the PCB. The transmitting opposing tube is welded on the PCB and is located on one side of the transmitting opposing tube. One end of the wire gasket is welded on the PCB, and the other end of the wire gasket is arranged on the housing assembly. An inlet is arranged on the wire sealing ring, and the wire is welded on the PCB through the inlet. This enables the existing optoelectronic liquid level sensor not to be affected by scale generated when the prism is immersed in the liquid, thus affecting the detection of the sensor.

[0004] However, the existing sensors are mainly fixedly installed on the pipeline surface through clamps, resulting in the sensors being able to only detect whether there is liquid at the installation part. When the liquid exceeds the detection range, the sensors cannot effectively judge the liquid level height, affecting the operation stability of the sensors.

[0005] Therefore, it is necessary to design and transform the liquid detection optical sensor. Content of the Utility Model

[0006] To solve the problems raised in the above background technique, the purpose of the present utility model is to provide a liquid detection optical sensor, which has the advantage of being able to adjust the detection height of the sensor, and solves the problem that the existing sensors are mainly fixedly installed on the pipeline surface through clamps, resulting in the sensors being able to only detect whether there is liquid at the installation part. When the liquid exceeds the detection range, the sensors cannot effectively judge the liquid level height, affecting the operation stability of the sensors.

[0007] To achieve the above purpose, the present utility model provides the following technical solution: A liquid detection optical sensor, including a transparent pipeline;

[0008] An optical sensor disposed on one side of a transparent pipeline;

[0009] A collar for connecting the optical sensor to the transparent pipeline;

[0010] A support structure is provided at the bottom of the optical sensor. The support structure includes a support frame surrounding the surface of the transparent pipeline. A telescopic electric rod is fixedly connected to the surface of the support frame. The output end of the telescopic electric rod is movably connected to a connecting block through a pin shaft. One end of the connecting block away from the output end of the telescopic electric rod is fixedly connected to the bottom of the optical sensor. A guiding structure is provided on the surface of the optical sensor.

[0011] As a preferred embodiment of the present utility model, the guiding structure includes an inner ring disposed on the surface of the optical sensor. An outer ring is sleeved on the outer surface of the inner ring. A guiding channel is formed between the inner ring and the outer ring. A movable block is fixedly connected to the surface of the support frame. A sliding rod is fixedly connected to the surface of the movable block. One side of the sliding rod away from the movable block extends into the interior of the guiding channel.

[0012] As a preferred embodiment of the present utility model, an elastic plate is fixedly connected to the surface of the telescopic electric rod. One side of the elastic plate away from the telescopic electric rod can contact the surface of the transparent pipeline. The elastic plate has elasticity.

[0013] As a preferred embodiment of the present utility model, the inner ring and the outer ring are fixedly connected to each other through a bracket. One side of the bracket away from the outer ring extends to the outside of the optical sensor and is fixedly connected to the optical sensor.

[0014] As a preferred embodiment of the present utility model, a rubber pad is fixedly connected to the surface of the support frame. One side of the rubber pad away from the support frame contacts the surface of the transparent pipeline. The rubber pad has elasticity.

[0015] As a preferred embodiment of the present utility model, a protective cover is fixedly connected to the surface of the outer ring. The protective cover surrounds the outside of the telescopic electric rod.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. Through the combination of the telescopic electric rod and the support frame, the present utility model realizes the automatic adjustment of the height of the optical sensor, enabling the sensor to flexibly meet the detection requirements of different liquid level heights, improving the adaptability and flexibility of the equipment. At the same time, the support frame surrounds the surface of the transparent pipeline, increasing the structural stability and ensuring the smoothness of the sensor during movement.

[0018] 2. The design of the inner ring, outer ring and guiding channel in this utility model provides precise path control for the movement of the optical sensor. The sliding of the sliding rod in the guiding channel ensures that the movement of the sensor in the vertical and horizontal directions can be effectively guided and restricted, avoiding deviation or shaking during the movement and improving the accuracy and stability of detection.

[0019] 3. The contact between the elastic plate and the surface of the transparent pipe in this utility model not only increases the friction between the electric telescopic rod and the transparent pipe, enabling the thrust to be more effectively transmitted to the optical sensor, but also plays a certain buffering role, reducing wear and noise caused by direct contact, and enabling the sliding rod to effectively move into the inner part of the arc of the guiding channel.

[0020] 4. In this utility model, the inner ring and the outer ring are firmly connected together by the bracket and extended to the outside of the optical sensor for fixation, enhancing the overall stability and strength of the guiding structure, making the guiding channel not easily deformed or damaged when bearing the force of the sliding of the sliding rod, and ensuring the smoothness and accuracy of the movement of the sensor.

[0021] 5. The contact between the rubber pad and the surface of the transparent pipe in this utility model not only increases the friction between the support frame and the transparent pipe, enabling the support frame to be more stably fixed on the transparent pipe, but also plays a certain sealing and shock-absorbing role.

[0022] 6. By arranging the protective cover around the outside of the electric telescopic rod in this utility model, it provides additional protection for the electric telescopic rod, preventing external impurities or liquids from entering the inside of the electric telescopic rod and causing damage. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of this utility model;

[0024] Figure 2 It is a schematic diagram of the partial structure of this utility model;

[0025] Figure 3 It is a schematic diagram of the partial structure of this utility model when viewed from below;

[0026] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of the structure at A in it.

[0027] In the figure: 1. Transparent pipe; 2. Optical sensor; 3. Collar; 4. Support structure; 5. Support frame; 6. Electric telescopic rod; 7. Connecting block; 8. Guiding structure; 9. Inner ring; 10. Outer ring; 11. Guiding channel; 12. Movable block; 13. Sliding rod; 14. Elastic plate; 15. Bracket; 16. Rubber pad; 17. Protective cover. Detailed Implementation Modes

[0028] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] As shown in Figures 1 to 4 , a liquid detection optical sensor provided by the present invention includes a transparent pipeline 1;

[0030] An optical sensor 2 provided on one side of the transparent pipeline 1;

[0031] A collar 3 for connecting the optical sensor 2 and the transparent pipeline 1;

[0032] A support structure 4 is provided at the bottom of the optical sensor 2. The support structure 4 includes a support frame 5 surrounding the surface of the transparent pipeline 1. A telescopic electric rod 6 is fixedly connected to the surface of the support frame 5. The output end of the telescopic electric rod 6 is movably connected to a connection block 7 through a pin shaft. One end of the connection block 7 away from the output end of the telescopic electric rod 6 is fixedly connected to the bottom of the optical sensor 2. A guiding structure 8 is provided on the surface of the optical sensor 2.

[0033] Referring to Figure 3 , the guiding structure 8 includes an inner ring 9 provided on the surface of the optical sensor 2. An outer ring 10 is sleeved on the outer surface of the inner ring 9. A guiding channel 11 is formed between the inner ring 9 and the outer ring 10. A movable block 12 is fixedly connected to the surface of the support frame 5. A sliding rod 13 is fixedly connected to the surface of the movable block 12. One side of the sliding rod 13 away from the movable block 12 extends into the interior of the guiding channel 11.

[0034] As a technical optimization solution of the present invention, through the design of the inner ring 9, the outer ring 10 and the guiding channel 11, precise path control is provided for the movement of the optical sensor 2. The sliding of the sliding rod 13 in the guiding channel 11 ensures that the movement of the sensor in the vertical and horizontal directions can be effectively guided and restricted, avoiding deviation or shaking during the movement process, and improving the accuracy and stability of detection.

[0035] Referring to Figure 3 , a spring plate 14 is fixedly connected to the surface of the telescopic electric rod 6. One side of the spring plate 14 away from the telescopic electric rod 6 can contact the surface of the transparent pipeline 1. The spring plate 14 has elasticity.

[0036] As a technical optimization solution of the present utility model, through the contact between the elastic plate 14 and the surface of the transparent pipe 1, not only the friction between the electric telescopic rod 6 and the transparent pipe 1 is increased, so that the thrust can be more effectively transmitted to the optical sensor 2, but also a certain buffering effect is achieved, reducing the wear and noise caused by direct contact, and enabling the slide rod 13 to effectively move into the inner part of the arc portion of the guiding channel 11.

[0037] Reference Figure 4 , the inner ring 9 and the outer ring 10 are fixedly connected to each other through the bracket 15, and one side of the bracket 15 away from the outer ring 10 extends to the outside of the optical sensor 2 and is fixedly connected to the optical sensor 2.

[0038] As a technical optimization solution of the present utility model, the inner ring 9 and the outer ring 10 are firmly connected together through the bracket 15 and extend to the outside of the optical sensor 2 for fixation, enhancing the overall stability and strength of the guiding structure 8, so that the guiding channel 11 is not easily deformed or damaged when bearing the force of the sliding of the slide rod 13, ensuring the smoothness and accuracy of the movement of the sensor.

[0039] Reference Figure 2 , a rubber pad 16 is fixedly connected to the surface of the support frame 5, and one side of the rubber pad 16 away from the support frame 5 is in contact with the surface of the transparent pipe 1, and the rubber pad 16 has elasticity.

[0040] As a technical optimization solution of the present utility model, through the contact between the rubber pad 16 and the surface of the transparent pipe 1, not only the friction between the support frame 5 and the transparent pipe 1 is increased, so that the support frame 5 can be more stably fixed on the transparent pipe 1, but also a certain sealing and shock-absorbing effect is achieved.

[0041] Reference Figure 1 , a protective cover 17 is fixedly connected to the surface of the outer ring 10, and the protective cover 17 is disposed around the outside of the electric telescopic rod 6.

[0042] As a technical optimization solution of the present utility model, through the arrangement of the protective cover 17 around the outside of the electric telescopic rod 6, additional protection is provided for the electric telescopic rod 6, preventing external impurities or liquids from entering the inside of the electric telescopic rod 6 and causing damage.

[0043] Working principle and usage process of the present utility model: During use, the optical sensor 2 sleeved on the surface of the transparent pipeline 1 through the collar 3 can detect the liquid level state inside the transparent pipeline 1. When the liquid level height exceeds the detection height of the optical sensor 2, the electric telescopic rod 6 can be activated and transmit the thrust to the optical sensor 2 by using the friction force between the support frame 5 and the transparent pipeline 1, so that the optical sensor 2 drives the guiding structure 8 to slide upward on the surface of the transparent pipeline 1 through the collar 3. When the electric telescopic rod 6 moves to the maximum stroke and the sliding rod 13 moves from the vertical part of the guiding channel 11 to the arc part, the electric telescopic rod 6 contracts and drives the support frame 5 to swing outward by using the sliding rod 13. At the same time, the support frame 5 slides and resets along the guiding channel 11 by using the sliding rod 13. When the electric telescopic rod 6 drives the support frame 5 to contact the transparent pipeline 1 again, the above steps can be repeated by using the friction force, so as to achieve the effect of adjusting the height of the optical sensor 2.

[0044] In summary, for this liquid detection optical sensor, through the combination of the electric telescopic rod 6 and the support frame 5, the automatic adjustment of the height of the optical sensor 2 is realized, enabling the sensor to flexibly meet the detection requirements of different liquid level heights, improving the adaptability and flexibility of the device. At the same time, the support frame 5 surrounds the surface of the transparent pipeline 1, increasing the structural stability and ensuring the smoothness of the sensor during movement.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0046] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid detection optical sensor, comprising a transparent pipe (1); An optical sensor (2) disposed on one side of the transparent pipe (1); A collar (3) for connecting the optical sensor (2) to the transparent pipe (1); Characterized in that: A support structure (4) is provided at the bottom of the optical sensor (2). The support structure (4) includes a support frame (5) surrounding the surface of the transparent pipe (1). A telescopic electric rod (6) is fixedly connected to the surface of the support frame (5). The output end of the telescopic electric rod (6) is movably connected to a connection block (7) by a pin shaft. One end of the connection block (7) away from the output end of the telescopic electric rod (6) is fixedly connected to the bottom of the optical sensor (2). A guiding structure (8) is provided on the surface of the optical sensor (2).

2. The liquid detection optical sensor according to claim 1, characterized in that: The guiding structure (8) includes an inner ring (9) provided on the surface of the optical sensor (2). An outer ring (10) is sleeved on the outer surface of the inner ring (9). A guiding channel (11) is formed between the inner ring (9) and the outer ring (10). A movable block (12) is fixedly connected to the surface of the support frame (5). A sliding rod (13) is fixedly connected to the surface of the movable block (12). One side of the sliding rod (13) away from the movable block (12) extends into the interior of the guiding channel (11).

3. The liquid detection optical sensor according to claim 1, wherein: An elastic plate (14) is fixedly connected to the surface of the telescopic electric rod (6). One side of the elastic plate (14) away from the telescopic electric rod (6) can contact the surface of the transparent pipe (1). The elastic plate (14) has elasticity.

4. The liquid detection optical sensor according to claim 2, wherein: The inner ring (9) and the outer ring (10) are fixedly connected to each other by a bracket (15). One side of the bracket (15) away from the outer ring (10) extends to the outside of the optical sensor (2) and is fixedly connected to the optical sensor (2).

5. The liquid detection optical sensor according to claim 1, characterized in that: A rubber pad (16) is fixedly connected to the surface of the support frame (5). One side of the rubber pad (16) away from the support frame (5) contacts the surface of the transparent pipe (1). The rubber pad (16) has elasticity.

6. The liquid detection optical sensor according to claim 2, wherein: A protective cover (17) is fixedly connected to the surface of the outer ring (10). The protective cover (17) surrounds the outside of the telescopic electric rod (6).

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