Liquid level control and turbidity sensor

Abstract

The utility model relates to the technical field of liquid sensors, in particular to a liquid level control and turbidity sensor which comprises a fixing frame, a liquid level control light guide column and a turbidity sensing light guide column, the liquid level control light guide column and the turbidity sensing light guide column are arranged on the fixing frame, and infrared transceivers are arranged at the tail end of the liquid level control light guide column and the tail end of the turbidity sensing light guide column respectively. The liquid level control light guide column is provided with a liquid level detection port which enables liquid to interfere with infrared ray propagation near an infrared ray propagation path, and the turbidity sensing light guide column is provided with a turbidity detection port which enables liquid to interfere with infrared ray propagation near an infrared ray propagation path. The technical problem that in the prior art, an integrated part of a liquid level controller and a turbidity sensor which is simple and small in structure is lacked is effectively solved.

Description

Technical Field

[0001] This application relates to the field of liquid sensor technology, and in particular to a liquid level control and turbidity sensor. Background Technology

[0002] A level controller is a component that regulates the liquid level within a device, commonly used in pet water fountains, washing machines, garment steamers, and other similar equipment. A turbidity sensor is a component that monitors the turbidity of liquids within a device in real time, also commonly used in pet water fountains, robot vacuum cleaners, washing machines, and other similar equipment.

[0003] Liquid level controllers and turbidity sensors have a high degree of overlap in application scenarios and can be used together. However, there are no simple and compact products on the market that integrate liquid level controllers and turbidity sensors. Utility Model Content

[0004] This application provides a liquid level control and turbidity sensor to at least solve the technical problem of the lack of a simple and compact integrated liquid level controller and turbidity sensor in related technologies.

[0005] To achieve the above objectives, this utility model provides a liquid level control and turbidity sensor, including a fixed frame and a liquid level control light guide and a turbidity sensing light guide disposed on the fixed frame. Infrared transceivers are respectively disposed at the ends of the liquid level control light guide and the turbidity sensing light guide. The liquid level control light guide is provided with a liquid level detection port near the infrared propagation path to allow the liquid to interfere with the infrared propagation, and the turbidity sensing light guide is provided with a turbidity detection port near the infrared propagation path to allow the liquid to interfere with the infrared propagation.

[0006] In some embodiments, the infrared transceiver includes an infrared transmitter and an infrared receiver, with the infrared transmitter and the infrared receiver respectively located at one end of the liquid level control light guide and the turbidity sensing light guide.

[0007] In some embodiments, the liquid level control light guide column includes a first liquid level control light guide column with the infrared transmitter at one end and a second liquid level control light guide column with the infrared receiver at one end, and a refractive element is provided at the other end away from the infrared transceiver to refract the infrared rays emitted by the infrared transmitter into the infrared receiver.

[0008] In some embodiments, the liquid level detection port is located at the refractive element.

[0009] In some embodiments, the turbidity sensing light guide column includes a first turbidity sensing light guide column with the infrared emitter at one end and a second turbidity sensing light guide column with the infrared receiver at one end, and a refractive element is provided at the other end away from the infrared transceiver to refract the infrared rays emitted by the infrared emitter into the infrared receiver.

[0010] In some embodiments, the turbidity detection port is disposed on the second turbidity sensing light guide column.

[0011] In some embodiments, the second turbidity sensing light guide column is divided into two sections, and the turbidity detection port is located at the interval between the two sections of the second turbidity sensing light guide column.

[0012] In some embodiments, a mounting bracket is provided at the upper end of the fixed frame, and the infrared transmitter and the infrared receiver are mounted on the mounting bracket.

[0013] In some embodiments, the mounting bracket has separate mounting holes that mate with the infrared transmitter and the infrared receiver, respectively.

[0014] In some embodiments, the liquid level detection port is positioned higher than the turbidity detection port.

[0015] Based on the above, the beneficial effects of this utility model's technical solution compared to the prior art are:

[0016] 1. By integrating the level controller and turbidity sensor into a single structure, the redundant design space of the original components is effectively reduced, and the component structure is simplified.

[0017] 2. The device adopts a water-electricity separation design, which effectively improves the overall safety of the equipment during use and avoids leakage accidents. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the mounting bracket and infrared transceiver structure of an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the light guide column and infrared transceiver in an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached drawings: Fixing frame 1; Liquid level control light guide column 2; First liquid level control light guide column 2.1; Second liquid level control light guide column 2.2; Liquid level detection port 2.3; Turbidity sensing light guide column 3; First turbidity sensing light guide column 3.1; Second turbidity sensing light guide column 3.2; Turbidity detection port 3.3; Mounting frame 4; Mounting hole 4.1; Infrared transmitter 5.1; Infrared receiver 5.2; Refractive element 6. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application. Furthermore, it is understood that although the efforts made in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, modifications to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0024] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0025] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” used in this application means two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. The terms “first,” “second,” “third,” etc., used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0026] This utility model provides a liquid level control and turbidity sensor, including a fixed frame and a liquid level control light guide and a turbidity sensing light guide mounted on the fixed frame. Infrared transceivers are respectively provided at the ends of the liquid level control light guide and the turbidity sensing light guide. The liquid level control light guide has a liquid level detection port near the infrared propagation path that allows the liquid to interfere with the infrared propagation, and the turbidity sensing light guide has a turbidity detection port near the infrared propagation path that allows the liquid to interfere with the infrared propagation.

[0027] Implementation, for example Figures 1-3 As shown, a liquid level control and turbidity sensor includes a mounting frame 1, a liquid level control light guide column 2 and a turbidity sensing light guide column 3 mounted on the mounting frame 1, a mounting bracket 4 mounted on the upper end of the mounting frame 1, and an infrared transceiver mounted on the mounting bracket 4 that cooperates with the liquid level control light guide column 2 and the turbidity sensing light guide column 3.

[0028] Specifically, the infrared transceiver includes two sets of infrared transmitters 5.1 and infrared receivers 5.2, which are respectively matched with the liquid level control light guide column 2 and the turbidity sensing light guide column 3.

[0029] Specifically, the liquid level control light guide column 2 includes a first liquid level control light guide column 2.1 and a second liquid level control light guide column 2.2 arranged vertically and side by side. A matching infrared emitter 5.1 is disposed at the upper end of the first liquid level control light guide column 2.1, and a matching infrared receiver 5.2 is disposed at the upper end of the second liquid level control light guide column 2.2. A refractive element 6 is disposed at the lower end of both the first liquid level control light guide column 2.1 and the second liquid level control light guide column 2.2. Infrared rays emitted by the infrared emitter 5.1 located at the upper end of the first liquid level control light guide column 2.1 pass through the first liquid level control light guide column 2.1 and are refracted twice at right angles by the refractive element 6 located at the lower end, before entering the infrared receiver 5.2 located at the upper end of the second liquid level control light guide column 2.2.

[0030] Furthermore, liquid level detection ports 2.3 are formed on the two inclined surfaces of the refractive element 6 at the lower end of the liquid level control light guide column 2. When the liquid level detection port 2.3 at the refractive element 6 comes into contact with the liquid, due to the difference in refractive index between the liquid and air, some of the infrared rays propagating to this point cannot propagate along the original propagation path, which in turn reduces the amount of infrared received by the infrared receiver 5.2 located at the upper end of the second liquid level control light guide column 2.2, thereby realizing the liquid level control of the equipment.

[0031] Specifically, the turbidity sensing light guide column 3 includes a first turbidity sensing light guide column 3.1 and a second turbidity sensing light guide column 3.2 arranged vertically and side by side. A matching infrared emitter 5.1 is located at the upper end of the first turbidity sensing light guide column 3.1, and a matching infrared receiver 5.2 is located at the upper end of the second turbidity sensing light guide column 3.2. A refractive element 6 is located at the lower end of both the first turbidity sensing light guide column 3.1 and the second turbidity sensing light guide column 3.2. Infrared rays emitted by the infrared emitter 5.1 located at the upper end of the first turbidity sensing light guide column 3.1 pass through the first turbidity sensing light guide column 3.1 and are refracted twice at right angles by the refractive element 6 located at the lower end, before entering the infrared receiver 5.2 located at the upper end of the second turbidity sensing light guide column 3.2.

[0032] Specifically, the two beveled surfaces of the refractive element 6 are treated with a mirror finish, such as by electroplating. Without this mirror finish, the detection results are prone to distortion due to a reduction in the amount received by the infrared receiver 5.2.

[0033] Furthermore, the second turbidity sensing light guide column 3.2 is divided into two sections, which are spaced apart in the extending direction, with the turbidity detection port 3.3 located at the interval. A container storing liquid is at least partially contained within this interval, so that the liquid covers the cross-section of the interval. When infrared light passes through this point, it is diffusely reflected by contaminant particles in the liquid, thereby measuring the liquid turbidity.

[0034] Specifically, the turbidity detection port 3.3 is located below the second turbidity sensing light guide column 3.2, and the position of the liquid level detection port 2.3 is higher than the position of the turbidity detection port 3.3.

[0035] Furthermore, the mounting bracket 4 has independent mounting holes 4.1 that mate with the infrared transmitter 5.1 and the infrared receiver 5.2 respectively. The mounting holes 4.1 can prevent mutual interference between infrared rays.

[0036] Those skilled in the art should understand that the technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A liquid level control and turbidity sensor, characterized by: The application relates to a liquid level control and turbidity sensing light column fixing frame, which comprises a fixing frame and liquid level control and turbidity sensing light columns arranged on the fixing frame, wherein infrared transceivers are arranged at the ends of the liquid level control and turbidity sensing light columns, a liquid level detection port for making liquid intervene in infrared propagation is arranged near the infrared propagation path of the liquid level control light column, and a turbidity detection port for making liquid intervene in infrared propagation is arranged near the infrared propagation path of the turbidity sensing light column.

2. A liquid level control and turbidity sensor according to claim 1, wherein: The infrared transceivers comprise infrared emitters and infrared receivers, and the infrared emitters and the infrared receivers are respectively concentrated at one end of the liquid level control light column and the turbidity sensing light column.

3. A liquid level control and turbidity sensor according to claim 2, wherein: The liquid level control light column comprises a first liquid level control light column with the infrared emitter arranged at the end and a second liquid level control light column with the infrared receiver arranged at the end, and a refracting member for refracting infrared emitted by the infrared emitter into the infrared receiver is arranged at the other end away from the infrared transceiver.

4. A liquid level control and turbidity sensor according to claim 3, wherein: The liquid level detection port is arranged at the refracting member.

5. A liquid level control and turbidity sensor according to claim 2, wherein: The turbidity sensing light column comprises a first turbidity sensing light column with the infrared emitter arranged at the end and a second turbidity sensing light column with the infrared receiver arranged at the end, and a refracting member for refracting infrared emitted by the infrared emitter into the infrared receiver is arranged at the other end away from the infrared transceiver.

6. A liquid level control and turbidity sensor according to claim 5, wherein: The turbidity detection port is arranged on the second turbidity sensing light column.

7. A liquid level control and turbidity sensor according to claim 6, wherein: The second turbidity sensing light column is divided into two sections, and the turbidity detection port is arranged at the interval between the two sections.

8. A liquid level control and turbidity sensor according to any one of claims 2 to 7, characterised in that: An installation frame is arranged at the upper end of the fixing frame, and the infrared emitter and the infrared receiver are installed on the installation frame.

9. A liquid level control and turbidity sensor according to claim 8, wherein: Independent installation holes matched with the infrared emitter and the infrared receiver are formed on the installation frame.

10. A liquid level control and turbidity sensor according to claim 8, wherein: The position of the liquid level detection port is higher than that of the turbidity detection port.

Images