Sensor with anti-interference structure

Abstract

The utility model discloses a sensor with an anti-interference structure, which belongs to the technical field of sensors, and comprises a first fixing frame, a connecting block is fixedly arranged on the first fixing frame, a rotating groove is formed in the lower surface of the connecting block, a rotating ring block is rotatably arranged in the rotating groove, and the rotating ring block is connected with the connecting block through an anti-interference structure. A driving gear ring is fixedly arranged on the lower surface of the rotating ring block; according to the utility model, the spiral protection cylinder is arranged and can be driven to rotate, so that the flowing state of air around the spiral protection cylinder and the motion trail of particles are effectively changed, and compared with a traditional static protection structure, the rotating spiral protection cylinder can actively reduce the opportunity that dust and chippings approach a laser light path; when dust particles approach, centrifugal force can be generated through rotation of the protection barrel, the particles are thrown away from a light path area, and therefore scattering and reflection interference of the particles to laser beams is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensors, and in particular relates to a sensor with an anti-interference structure. Background Art

[0002] Laser sensors are widely used in modern industrial production, scientific research, and numerous high-precision measurement fields. Leveraging their high precision and non-contact measurement capabilities, they play a key role in distance measurement, displacement monitoring, and surface profile detection. However, in real-world environments, laser sensors face a variety of interference factors, which can severely impact their measurement accuracy and reliability.

[0003] In complex industrial environments, laser sensor components are often subject to various interferences from the surrounding environment. For example, in a machining workshop, a large amount of metal debris and dust particles will be diffused in the air. These tiny particles may enter the optical path of the laser sensor. When the laser beam hits these particles, scattering and reflection will occur. This will not only weaken the target reflected light signal received by the laser sensor, but the scattered light may also mix with the target reflected light, making it difficult for the sensor to accurately distinguish the true measurement signal, thereby causing measurement errors. In addition, in some environments with air flow, such as ventilated factories or outdoor measurement scenarios, unstable airflow will also affect the laser sensor. Airflow will cause the air density along the laser propagation path to change, which in turn causes the laser to refract. This refraction will cause the laser beam to deviate from the intended optical path, affecting the sensor's accurate detection of the target object, and further affecting the sensor's signal processing and output. Therefore, a sensor with an anti-interference structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to provide a sensor with an anti-interference structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sensor with an anti-interference structure, comprising a first fixed frame, a connecting block fixedly provided on the first fixed frame, a rotating groove being provided on the lower surface of the connecting block, a rotating ring block being rotatably provided in the rotating groove, the rotating ring block, the lower surface of the rotating ring block is fixedly provided with a driving gear ring, the lower surface of the driving gear ring is threadedly fixed with a connecting ring block through a threaded ring groove, the lower surface of the connecting ring block is fixedly provided with a spiral protective cylinder, and the lower surface of the connecting ring block is fixedly provided with a laser sensor assembly.

[0006] By setting up a spiral protective tube, the spiral protective tube can be driven to rotate, effectively changing the air flow state and the movement trajectory of particles around it. Compared with the traditional static protective structure, the rotating spiral protective tube can actively reduce the chance of dust and debris approaching the laser light path. When dust particles approach, the rotation of the protective tube can generate a centrifugal force to throw the particles away from the light path area, thereby reducing the scattering and reflection interference of the particles on the laser beam. At the same time, the rotation of the spiral protective tube can also stabilize the air flow around it to a certain extent, by forming a relatively stable airflow layer, reducing the air density changes and laser refraction caused by external unstable airflow. In comparison, traditional protective measures cannot regulate the air flow so effectively, which further demonstrates the excellent effect of the spiral protective tube in improving the anti-interference ability of laser sensors.

[0007] As a preferred embodiment, the laser sensor assembly is located inside the drive gear ring.

[0008] As a preferred embodiment, a drive motor is fixedly mounted on one side of the first fixing frame.

[0009] As a preferred embodiment, the output shaft of the drive motor is fixedly provided with a driving gear.

[0010] As a preferred embodiment, the driving gear is meshed with the driving gear ring.

[0011] As a preferred embodiment, a second fixing bracket is fixedly provided on one side of the drive motor.

[0012] By setting up a first fixing frame and a second fixing frame, the double support structure composed of the first fixing frame and the second fixing frame provides a stable support for the entire sensor body. This double-leg support design significantly enhances the stability of the sensor in complex environments, can effectively resist external interference such as mechanical vibration, and ensure the stability of the internal structure of the sensor. At the same time, this stable structure also creates good working conditions for the drive motor, which is conducive to its smooth driving of the active gear, thereby driving the protective tube to rotate stably, ensuring the reliable operation of the entire anti-interference mechanism, enabling the sensor to accurately measure in various harsh environments, and greatly expanding its application range.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model provides a spiral protective cylinder, which can be driven to rotate and effectively change the air flow state and the movement trajectory of particles around it. Compared with the traditional static protective structure, the rotating spiral protective cylinder can actively reduce the chance of dust and debris approaching the laser light path. When dust particles approach, the rotation of the protective cylinder can generate a centrifugal force to throw the particles away from the light path area, thereby reducing the scattering and reflection interference of the particles on the laser beam. At the same time, the rotation of the spiral protective cylinder can also stabilize the air flow around it to a certain extent, and reduce the air density change and laser refraction phenomenon caused by external unstable airflow by forming a relatively stable airflow layer. In comparison, traditional protective measures cannot regulate the air flow so effectively, which further demonstrates the excellent effect of the spiral protective cylinder in improving the anti-interference ability of laser sensors.

[0015] The utility model provides a double support structure composed of a first fixing frame and a second fixing frame, thereby providing a stable support for the entire sensor body. This double-leg support design significantly enhances the stability of the sensor in complex environments, can effectively resist external interference such as mechanical vibration, and ensure the stability of the internal structure of the sensor. At the same time, this stable structure also creates good working conditions for the drive motor, which is conducive to its smooth driving of the active gear, thereby driving the protective tube to rotate stably, ensuring the reliable operation of the entire anti-interference mechanism, and enabling the sensor to accurately measure in various harsh environments, thereby greatly expanding its application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the spiral protective tube of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the connecting block of the present invention;

[0019] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged three-dimensional structure at point A in the middle.

[0020] In the figure: 1. First fixed frame; 2. Connecting block; 3. Rotating groove; 4. Rotating ring block; 5. Driving gear ring; 6. Threaded ring groove; 7. Connecting ring block; 8. Spiral protective cylinder; 9. Laser sensor assembly; 10. Driving motor; 11. Driving gear; 12. Second fixed frame. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the embodiments.

[0022] The following examples are intended to illustrate the present invention and are not intended to limit the scope of protection of the present invention. The conditions in the examples may be further adjusted according to specific conditions. Simple improvements to the method of the present invention based on the concept of the present invention fall within the scope of protection claimed by the present invention.

[0023] See also Figure 1-4 The utility model provides a sensor with an anti-interference structure, including a first fixing frame 1, a connecting block 2 is fixedly provided on the first fixing frame 1, a rotating groove 3 is opened on the lower surface of the connecting block 2, a rotating ring block 4 is rotatably provided in the rotating groove 3, a driving gear ring 5 is fixedly provided on the lower surface of the rotating ring block 4, a connecting ring block 7 is threadedly fixedly provided on the lower surface of the driving gear ring 5 through a threaded ring groove 6, a spiral protective cylinder 8 is fixedly provided on the lower surface of the connecting ring block 7, and a laser sensor assembly 9 is fixedly provided on the lower surface of the connecting block 2. By arranging the spiral protective cylinder 8, the spiral protective cylinder 8 can be driven to rotate, thereby effectively changing the air flow state and the movement trajectory of the particles around it. Compared with the traditional static protective structure, the rotating spiral protective cylinder 8 The spiral protective tube 8 can actively reduce the chance of dust and debris approaching the laser light path. When dust particles approach, the rotation of the protective tube can generate a centrifugal force to throw the particles away from the light path area, thereby reducing the scattering and reflection interference of the particles on the laser beam. At the same time, the rotation of the spiral protective tube 8 can also stabilize the air flow around it to a certain extent, by forming a relatively stable airflow layer, reducing the air density changes and laser refraction caused by external unstable airflow. In comparison, traditional protective measures cannot regulate the air flow so effectively, which further demonstrates the excellent effect of the spiral protective tube 8 in improving the anti-interference ability of the laser sensor. In addition, the spiral protective tube 8 can be conveniently disassembled and replaced by fixing it with the thread of the connecting ring block 7.

[0024] The laser sensor assembly 9 is located inside the drive gear ring 5 .

[0025] A driving motor 10 is fixedly mounted on one side of the first fixing frame 1 .

[0026] A driving gear 11 is fixedly provided on the output shaft of the driving motor 10 .

[0027] The driving gear 11 meshes with the driving gear ring 5 .

[0028] A second fixing frame 12 is fixedly provided on one side of the driving motor 10. By arranging the first fixing frame 1 and the second fixing frame 12, the double support structure composed of the first fixing frame 1 and the second fixing frame 12 provides a stable support for the entire sensor body. This double-leg support design significantly enhances the stability of the sensor in a complex environment, can effectively resist external interference such as mechanical vibration, and ensure the stability of the internal structure of the sensor. At the same time, this stable structure also creates good working conditions for the driving motor 10, which is conducive to its smooth driving of the active gear 11, and then drives the protective tube 8 to rotate stably, ensuring the reliable operation of the entire anti-interference mechanism, so that the sensor can accurately measure in various harsh environments, greatly expanding its application range.

[0029] The working principle and usage process of the present invention are as follows: First, by providing a spiral protective tube 8, the spiral protective tube 8 can be driven to rotate, effectively changing the air flow state and particle trajectory around it. Compared with traditional static protective structures, the rotating spiral protective tube 8 can actively reduce the chance of dust and debris approaching the laser light path. When dust particles approach, the rotation of the protective tube generates a centrifugal force, causing the particles to be thrown away from the light path area, thereby reducing the particles' scattering and reflection interference with the laser beam. At the same time, the rotation of the spiral protective tube 8 can also stabilize the air flow around it to a certain extent, forming a relatively stable airflow layer, reducing air density changes and laser refraction caused by external unstable airflow. In comparison, traditional protective measures cannot achieve such effective air flow regulation, further demonstrating the excellent effect of the spiral protective tube 8 in improving the anti-interference capability of the laser sensor. In addition, the spiral protective tube 8 can be easily removed and replaced by being fixed by the thread of the connecting ring block 7. The dual support structure formed by the first and second fixing frames 1 and 12 provides stable support for the entire sensor body. This double-leg support design significantly enhances the stability of the sensor in complex environments, can effectively resist external interference such as mechanical vibration, and ensure the stability of the sensor's internal structure. At the same time, this stable structure also creates good working conditions for the drive motor 10, which is conducive to its smooth driving of the active gear 11, and then drives the protective tube 8 to rotate stably, ensuring the reliable operation of the entire anti-interference mechanism, so that the sensor can accurately measure in various harsh environments, greatly expanding its application range.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sensor with an anti-interference structure, comprising a first fixing frame (1), characterized in that: A connecting block (2) is fixedly provided on the first fixing frame (1), a rotating groove (3) is provided on the lower surface of the connecting block (2), a rotating ring block (4) is rotatably provided in the rotating groove (3), a driving gear ring (5) is fixedly provided on the lower surface of the rotating ring block (4), a connecting ring block (7) is fixedly provided on the lower surface of the driving gear ring (5) through a threaded ring groove (6), a spiral protective cylinder (8) is fixedly provided on the lower surface of the connecting ring block (7), and a laser sensor assembly (9) is fixedly provided on the lower surface of the connecting block (2).

2. The sensor with an anti-interference structure according to claim 1, characterized in that: The laser sensor assembly (9) is located inside the drive gear ring (5).

3. The sensor with an anti-interference structure according to claim 1, characterized in that: A driving motor (10) is fixedly provided on one side of the first fixing frame (1).

4. The sensor with an anti-interference structure according to claim 3, characterized in that: The output shaft of the driving motor (10) is fixedly provided with a driving gear (11).

5. The sensor with an anti-interference structure according to claim 4, characterized in that: The driving gear (11) is meshed with the driving gear ring (5).

6. The sensor with an anti-interference structure according to claim 3, characterized in that: A second fixing frame (12) is fixedly provided on one side of the driving motor (10).

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