Self-cleaning ultrasonic inductor
Patent Information
- Application Number
- CN202522528871.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-28
AI Technical Summary
[0003]但是超声波感应器虽可借助自身振动实现探头自清洁，可其清洁方式存在一定局限性，在粉尘浓度较高的工业场景中，仅依靠振动难以彻底清除感应端附着的大量粉尘，部分顽固污染物易残留于探测端面，进而影响传感信号的稳定性与检测精度，这种清洁模式无法适配高污染、高粉尘的复杂工况，导致设备在这类场景中的应用效果受限
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a water guide ring, a water spray head, a water pump, and a telescopic hose, the water pump can deliver the cleaning medium, which is then distributed by the water guide ring and rinsed by the water spray head on the end face of the sensor head, forming a highly efficient rinsing and cleaning mode. This solves the problem of difficulty in removing high dust and stubborn pollutants in the prior art. At the same time, the water guide ring is driven to move along the axial direction of the sensor head by an electric push rod on the fixed frame, so that the water spray head can thoroughly rinse different areas of the sensor head, avoiding blind spots in cleaning. In addition, the overall structural design is reasonable, ensuring a stable and reliable cleaning process, significantly improving the cleaning effect and detection accuracy of the sensor under high pollution conditions, and extending the service life of the equipment.
Smart Images
Figure CN224854535U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of industrial sensing equipment technology, specifically relating to a self-cleaning ultrasonic sensor. Background Technology
[0002] An ultrasonic sensor is an industrial sensing device that uses the physical properties of high-frequency ultrasonic waves to achieve non-contact detection. Its core consists of a piezoelectric transducer, a controller, and a probe end face. It converts electrical energy into mechanical vibration through the piezoelectric effect, which can accurately measure parameters such as distance, liquid level, and turbidity. It can also self-clean the probe by vibrating itself to remove contaminants such as dust and scale. The device has advantages such as strong anti-interference, adaptability to harsh working conditions, and non-contact and wear-free operation. It is widely used in sewage treatment, industrial silos, semiconductor manufacturing, mining and other fields, providing technical support for accurate monitoring and stable operation of industrial production.
[0003] However, although ultrasonic sensors can achieve self-cleaning of the probe through their own vibration, their cleaning method has certain limitations. In industrial scenarios with high dust concentration, it is difficult to completely remove the large amount of dust attached to the sensing end by vibration alone. Some stubborn pollutants are easy to remain on the detection end surface, which in turn affects the stability of the sensing signal and the detection accuracy. This cleaning mode cannot be adapted to complex working conditions with high pollution and high dust, which limits the application effect of the equipment in such scenarios.
[0004] To address the aforementioned problems, this application proposes a self-cleaning ultrasonic sensor. Utility Model Content
[0005] To address the aforementioned problems in the existing technology, this utility model provides a self-cleaning ultrasonic sensor, which features improved self-cleaning performance of the ultrasonic sensor.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning ultrasonic sensor, comprising an ultrasonic sensor, a controller disposed on the front of the ultrasonic sensor, a sensing head fixedly connected to the left side of the ultrasonic sensor, a fixing frame disposed on the left side of the ultrasonic sensor, a water guide ring disposed on the left side of the fixing frame, the water guide ring being sleeved on the outside of the sensing head, two sets of water spray heads fixedly connected to the inner wall of the water guide ring, a telescopic hose fixedly connected to the outer surface of the water guide ring, a water pump disposed on the right side of the fixing frame, the output end of the water pump being fixedly connected to the right end of the telescopic hose, and two sets of electric push rods fixedly connected to the inner wall of the fixing frame, the telescopic end of each set of electric push rods being fixedly connected to the right side of the water guide ring.
[0007] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to the back of the controller, and the back of the connecting plate is fixedly connected to the front of the ultrasonic sensor.
[0008] As a preferred embodiment of this utility model, two sets of fixing rods are fixedly connected to the left side of the ultrasonic sensor, and the left end of each fixing rod is fixedly connected to the right side of the fixing frame.
[0009] As a preferred embodiment of this utility model, a fixing ring is fixedly connected to the outer surface of each electric push rod, and the right side of each fixing ring is fixedly connected to the left side of the fixing frame.
[0010] As a preferred embodiment of this utility model, each of the water spray heads has a support ring fixedly connected to its outer surface, and the side of each set of support rings that is far apart from each other is fixedly connected to the inner wall of the water guide ring.
[0011] As a preferred embodiment of this utility model, a sealing ring is fixedly connected to the outer surface of the telescopic hose, and the bottom surface of the sealing ring is fixedly connected to the outer surface of the water guide ring.
[0012] As a preferred embodiment of this utility model, a support plate is fixedly connected to the bottom surface of the water pump, and the left side of the support plate is fixedly connected to the right side of the fixing frame.
[0013] As a preferred embodiment of this utility model, a flange is fixedly connected to the outer surface of the water pump input end, and two sets of fixing holes are provided on the front of the flange.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a water guide ring, a water spray head, a water pump, and a telescopic hose, the water pump can deliver the cleaning medium, which is then distributed by the water guide ring and rinsed by the water spray head on the end face of the sensor head, forming a highly efficient rinsing and cleaning mode. This solves the problem of difficulty in removing high dust and stubborn pollutants in the prior art. At the same time, the water guide ring is driven to move along the axial direction of the sensor head by an electric push rod on the fixed frame, so that the water spray head can thoroughly rinse different areas of the sensor head, avoiding blind spots in cleaning. In addition, the overall structural design is reasonable, ensuring a stable and reliable cleaning process, significantly improving the cleaning effect and detection accuracy of the sensor under high pollution conditions, and extending the service life of the equipment. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the sensing head in this utility model; Figure 3This is a cross-sectional view of the fixing frame in this utility model; Figure 4 This is a schematic diagram of the water guide ring in this utility model; Figure 5 This is a schematic diagram of the water pump in this utility model; Figure 6 This is a schematic diagram of the flange structure in this utility model; In the diagram: 1. Ultrasonic sensor; 2. Mounting bracket; 3. Mounting rod; 4. Connecting plate; 5. Controller; 6. Sensor head; 7. Water guide ring; 8. Telescopic hose; 9. Spray head; 10. Electric push rod; 11. Mounting ring; 12. Sealing ring; 13. Support ring; 14. Water pump; 15. Support plate; 16. Mounting hole; 17. Flange. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0017] Please see Figure 1-6 The present invention provides the following technical solution: a self-cleaning ultrasonic sensor, comprising an ultrasonic sensor 1, a controller 5 disposed on the front of the ultrasonic sensor 1, a sensing head 6 fixedly connected to the left side of the ultrasonic sensor 1, a fixing frame 2 disposed on the left side of the ultrasonic sensor 1, a water guide ring 7 disposed on the left side of the fixing frame 2, the water guide ring 7 being sleeved on the outside of the sensing head 6, two sets of water spray heads 9 being fixedly connected to the inner wall of the water guide ring 7, a telescopic hose 8 being fixedly connected to the outer surface of the water guide ring 7, a water pump 14 disposed on the right side of the fixing frame 2, the output end of the water pump 14 being fixedly connected to the right end of the telescopic hose 8, and two sets of electric push rods 10 being fixedly connected to the inner wall of the fixing frame 2, the telescopic end of each set of electric push rods 10 being fixedly connected to the right side of the water guide ring 7. In this embodiment, the controller 5 adopts an industrial-grade PLC controller or an embedded microcontroller, which has multi-channel signal acquisition, logic control and execution component driving functions. It can accurately receive the detection signal of the sensor head 6, and at the same time output control commands to adjust the start and stop of the water pump 14, the flow rate and the extension and retraction stroke and speed of the electric push rod 10, adapting to the complex control requirements of industrial scenarios. It also has strong anti-electromagnetic interference capabilities, ensuring the coordinated operation of the cleaning and detection processes. The water pump 14 adopts a miniature high-pressure diaphragm pump or a stainless steel centrifugal pump. This type of water pump 14 has the characteristics of small size, adjustable flow rate and strong corrosion resistance. It can stably deliver clean water or special industrial cleaning media to meet the pressure requirements of the end face rinsing of the sensor head 6. It also has excellent sealing performance to avoid the leakage of cleaning media from affecting the operation of the equipment. The electric push rod 10 adopts a DC servo electric push rod or a ball screw electric push rod. It has high positioning accuracy and smooth extension and retraction. It can accurately drive the water guide ring 7 to move along the axial direction of the sensor head 6 to achieve rinsing without dead angles. It also has the advantages of strong load capacity and long service life, adapting to long-term stable operation in industrial environments.
[0018] Specifically, a connecting plate 4 is fixedly connected to the back of the controller 5. The back of the connecting plate 4 is fixedly connected to the front of the ultrasonic sensor 1. In this embodiment, the connecting plate 4 enables the controller 5 and the ultrasonic sensor 1 to be stably assembled, which not only ensures the flatness of the installation structure, but also provides reliable support for the controller 5, preventing it from being displaced or damaged due to vibration during equipment operation.
[0019] Specifically, two sets of fixing rods 3 are fixedly connected to the left side of the ultrasonic sensor 1. The left end of each fixing rod 3 is fixedly connected to the right side of the fixing frame 2. In this embodiment, the two sets of symmetrically arranged fixing rods 3 realize the rigid connection between the fixing frame 2 and the ultrasonic sensor 1, ensuring that the fixing frame 2 and the cleaning components installed on it maintain a relatively stable positional relationship with the sensor head 6, and ensuring the accurate execution of the cleaning operation.
[0020] Specifically, each electric push rod 10 has a fixed ring 11 fixedly connected to its outer surface. The right side of each fixed ring 11 is fixedly connected to the left side of the fixed frame 2. In this embodiment, the electric push rod 10 is firmly fixed to the fixed frame 2 by the fixed ring 11, which enhances the stability and coaxiality of the electric push rod 10 installation, avoids its deviation during the telescopic drive, and ensures that the movement trajectory of the water guide ring 7 is accurate and controllable.
[0021] Specifically, each water nozzle 9 has a support ring 13 fixedly connected to its outer surface. The side of each set of support rings 13 that is far apart from each other is fixedly connected to the inner wall of the water guide ring 7. In this embodiment, the support rings 13 are used to position and reinforce the water nozzle 9, ensuring that the water nozzle 9 maintains a preset angle and installation accuracy within the water guide ring 7, ensuring that the flushing medium can be accurately sprayed onto the end face of the sensor head 6, and at the same time improving the water nozzle 9's resistance to vibration and impact.
[0022] Specifically, a sealing ring 12 is fixedly connected to the outer surface of the telescopic hose 8, and the bottom surface of the sealing ring 12 is fixedly connected to the outer surface of the water guide ring 7. In this embodiment, the sealing ring 12 enhances the sealing performance at the connection between the telescopic hose 8 and the water guide ring 7, effectively preventing leakage of the cleaning medium during transportation and avoiding contamination of internal equipment components or impact on the surrounding working environment.
[0023] Specifically, a support plate 15 is fixedly connected to the bottom surface of the water pump 14. The left side of the support plate 15 is fixedly connected to the right side of the fixing frame 2. In this embodiment, the support plate 15 provides a stable installation support surface for the water pump 14, reducing the impact of the vibration generated by the water pump 14 during operation on the overall structure of the equipment. At the same time, it ensures that the connection between the water pump 14 and the telescopic hose 8 is subjected to balanced force, thereby improving the reliability of the pipeline connection.
[0024] Specifically, a flange 17 is fixedly connected to the outer surface of the input end of the water pump 14. Two sets of fixing holes 16 are opened on the front of the flange 17. In this embodiment, the water pump 14 and the external cleaning medium conveying pipeline are quickly connected through the flange 17 and the fixing holes 16, which not only ensures the sealing and firmness of the pipeline connection, but also facilitates the installation, disassembly and subsequent maintenance of the equipment.
[0025] The working principle and usage process of this utility model are as follows: First, the water pump 14 is fixedly connected to the external cleaning medium delivery pipeline through the fixing holes 16 on the flange 17, ensuring the pipeline is sealed and leak-free. Then, the entire device is installed in the preset position at the industrial site. The rigid connection between the fixing rod 3 and the fixing frame 2 ensures the relative position stability of the sensor head 6 and the cleaning components. During operation, the controller 5 receives the detection signal from the ultrasonic sensor 1 in real time. When it detects that contaminant accumulation on the end face of the sensor head 6 affects the detection accuracy, the controller 5 simultaneously outputs a control command. On one hand, the water pump 14 is started, delivering the cleaning medium through the telescopic hose 8 to the water guide ring 7. After being distributed by the water guide ring 7, the medium is sprayed onto the end face of the sensor head 6 by the spray nozzle 9. The system sprays water to achieve targeted rinsing. On the other hand, it controls the synchronous extension and retraction of two sets of electric push rods 10, driving the water guide ring 7 to move smoothly along the axis of the sensor head 6, so that the spray head 9 covers the entire end face of the sensor head 6, avoiding blind spots in cleaning. During the cleaning process, the sealing ring 12 effectively prevents the cleaning medium from leaking from the connection between the telescopic hose 8 and the water guide ring 7. The support ring 13 ensures the stability of the installation angle of the spray head 9, and the fixing ring 11 ensures that the electric push rod 10 runs without deviation. All components work together to achieve efficient cleaning. After cleaning, the controller 5 controls the water pump 14 to stop working and the electric push rod 10 to reset, and the equipment returns to normal detection state. Through continuous cycle of "detection-cleaning" linkage, the ultrasonic sensor 1 is ensured to operate stably for a long time under high pollution conditions.
[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A self-cleaning ultrasonic sensor, characterized in that: The device includes an ultrasonic sensor (1), a controller (5) is provided on the front of the ultrasonic sensor (1), a sensor head (6) is fixedly connected to the left side of the ultrasonic sensor (1), a mounting bracket (2) is provided on the left side of the ultrasonic sensor (1), a water guide ring (7) is provided on the left side of the mounting bracket (2), the water guide ring (7) is sleeved on the outside of the sensor head (6), two sets of water spray heads (9) are fixedly connected to the inner wall of the water guide ring (7), a telescopic hose (8) is fixedly connected to the outer surface of the water guide ring (7), a water pump (14) is provided on the right side of the mounting bracket (2), the output end of the water pump (14) is fixedly connected to the right end of the telescopic hose (8), and two sets of electric push rods (10) are fixedly connected to the inner wall of the mounting bracket (2), the telescopic end of each set of electric push rods (10) is fixedly connected to the right side of the water guide ring (7).
2. The self-cleaning ultrasonic sensor according to claim 1, characterized in that: The back of the controller (5) is fixedly connected to a connecting plate (4), and the back of the connecting plate (4) is fixedly connected to the front of the ultrasonic sensor (1).
3. The self-cleaning ultrasonic sensor according to claim 1, characterized in that: Two sets of fixing rods (3) are fixedly connected to the left side of the ultrasonic sensor (1), and the left end of each fixing rod (3) is fixedly connected to the right side of the fixing frame (2).
4. A self-cleaning ultrasonic sensor according to claim 1, characterized in that: Each of the electric push rods (10) has a fixed ring (11) fixedly connected to its outer surface, and the right side of each fixed ring (11) is fixedly connected to the left side of the fixing frame (2).
5. A self-cleaning ultrasonic sensor according to claim 1, characterized in that: Each of the spray nozzles (9) has a support ring (13) fixedly connected to its outer surface, and the side of each set of support rings (13) that is far apart from each other is fixedly connected to the inner wall of the water guide ring (7).
6. A self-cleaning ultrasonic sensor according to claim 1, characterized in that: A sealing ring (12) is fixedly connected to the outer surface of the telescopic hose (8), and the bottom surface of the sealing ring (12) is fixedly connected to the outer surface of the water guide ring (7).
7. A self-cleaning ultrasonic sensor according to claim 1, characterized in that: The bottom surface of the water pump (14) is fixedly connected to a support plate (15), and the left side of the support plate (15) is fixedly connected to the right side of the fixing frame (2).
8. A self-cleaning ultrasonic sensor according to claim 1, characterized in that: A flange (17) is fixedly connected to the outer surface of the input end of the water pump (14), and two sets of fixing holes (16) are opened on the front of the flange (17).