Anti-interference photoelectric sensor

Abstract

The utility model discloses an anti-interference photoelectric sensor, and belongs to the field of photoelectric sensors. An anti-interference photoelectric sensor comprises an induction module and an induction end electrically connected to one side of the induction module, a shielding structure is arranged on the surface of the induction module and comprises an inner ring arranged on the surface of the induction module, and an outer ring located at the bottom of the inner ring is arranged at the bottom of the induction module. The inner ring and the outer ring are both in an arc shape and can form a closed cavity to shield the sensing end, and the surfaces of the inner ring and the outer ring are fixedly connected with connecting rings arranged on the surface of the sensing module in a sleeving mode. The closed cavity is formed between the inner ring and the outer ring to shield the sensing end, the influence of external interference on the sensor can be effectively reduced, meanwhile, the inner ring and the outer ring can rotate and change the overlying area, part of the sensing end can be exposed, and therefore flexible control over the collecting direction is achieved.

Description

Technical Field

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

[0002] A photoelectric sensor is a device that converts light signals into electrical signals. Its operating principle is primarily based on the photoelectric effect, which is the foundation of its operation. When light shines on certain substances, the material's electrons absorb the energy of the photons, generating a corresponding electrical effect. The photoelectric effect can be divided into three categories: external photoelectric effect, internal photoelectric effect, and photovoltaic effect.

[0003] For example, the patent application number published on the China Patent Network is: 202322482076.X, and the patent name is: An anti-interference small slot photoelectric sensor, including a protective shell, a protective component is provided on one side of the outer wall and the inner wall of the protective shell, and an adjustment mounting component is provided on the end of the protective component away from the protective shell. An anti-interference component is provided inside the protective shell, and the anti-interference component is partially provided in the middle of the protective shell, which can perform anti-interference processing on the photoelectric sensor multiple times, thereby better ensuring the use effect of the photoelectric sensor, thereby reducing the impact of external interference on the sensor, and improving the reliability of the sensor. Through the cooperation between the mounting component and the protective component, the installation and fixing effect of the photoelectric sensor can be guaranteed, that is, selecting a suitable installation position, maintaining stable installation, avoiding pressure on the sensor, etc., and the outside and outside of the photoelectric sensor can also be protected, thereby preventing the sensor surface from being damaged, thereby extending the service life of the sensor.

[0004] However, the structure of existing sensors is relatively simple, and the sensing end used to collect light is directly exposed to the external environment. Light from different directions will affect the sensing accuracy of the sensing end, and it cannot meet the usage requirements of some special environments. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that sensors exposed to the outside are easily disturbed by the refraction of surrounding light, and to propose an anti-interference photoelectric sensor.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An anti-interference photoelectric sensor includes a sensing module;

[0008] A sensing terminal electrically connected to one side of the sensing module;

[0009] The surface of the sensing module is provided with a shielding structure, and the shielding structure includes an inner ring provided on the surface of the sensing module, and the bottom of the sensing module is provided with an outer ring located at the bottom of the inner ring. The shapes of the inner ring and the outer ring are both arc-shaped and can form a closed chamber to shield the sensing end. The surfaces of the inner ring and the outer ring are fixedly connected with a connecting ring sleeved on the surface of the sensing module. The connecting ring is slidably connected to the sensing module and the inner ring and the outer ring can rotate on the surface of the sensing module through the connecting ring. The inner ring and the outer ring can change the overlapping area by rotation and expose part of the sensing end to the outside. The surface of the sensing module is provided with a positioning structure, and the positioning structure can fix the adjusted inner ring and outer ring.

[0010] As a preferred technical solution of the present application, the positioning structure includes an adjustment ring mounted on the surface of the sensing module, a rack is fixedly connected to the surface of the adjustment ring, a tooth groove is provided on the inner surface of the connecting ring, and the side of the rack away from the adjustment ring can extend to the interior of the tooth groove and engage with the tooth groove. The surface of the sensing module is provided with an adjustment structure, and the adjustment structure can adjust the shielding distance of the shielding structure.

[0011] As a preferred technical solution of the present application, the adjustment structure includes a connecting block fixedly connected to the top of the sensing module, and both sides of the connecting block are movably connected to a rocker arm through a pin shaft. The surface of the adjustment ring is fixedly connected to a bracket, and the bracket extends to the inner side of the rocker arm away from the side of the adjustment ring. The surface of the bracket is fixedly connected to a sliding rod located inside the rocker arm, and the sliding rod is slidably connected to the rocker arm. During the swinging process, the rocker arm can use the sliding rod to push the bracket and the adjustment ring to slide horizontally.

[0012] As a preferred technical solution of the present application, the top thread of the sensing module is connected with a bolt, and the end of the bolt located on the inner side of the rocker arm is movably connected with a traction rod, and both ends of the traction rod extend to the inner side of the rocker arm and are slidably connected to the rocker arm. The bolt can drive the traction rope to slide inside the rocker arm and push the rocker arm to swing during the horizontal movement of the thread.

[0013] As a preferred technical solution of the present application, a spring plate is fixedly connected to the surface of the rocker arm, and a side of the spring plate away from the rocker arm contacts the top of the sensing module, and the spring plate is elastic.

[0014] As a preferred technical solution of this application, the surface of the inner ring is fixedly connected to a support ring sleeved on the surface of the sensing module, and the surface of the sensing module is fixedly connected to a limiting ring located between the inner ring and the outer ring, and the limiting ring is located on the right side of the support ring.

[0015] As a preferred technical solution of this application, the left side of the limiting ring is fixedly connected to a compression spring sleeved on the surface of the sensing module. The side of the compression spring away from the limiting ring contacts the surface of the support ring, and the compression spring can support the support ring by using elasticity.

[0016] Compared with the prior art, the present invention provides an anti-interference photoelectric sensor with the following beneficial effects:

[0017] 1. This anti-interference photoelectric sensor shields the sensing end by forming a closed chamber between the inner and outer rings, which can effectively reduce the impact of external interference on the sensor. At the same time, the inner and outer rings can rotate and change the overlapping area, so that part of the sensing end can be exposed, thereby achieving flexible control of the collection direction.

[0018] 2. This anti-interference photoelectric sensor provides a stable positioning mechanism for the inner and outer rings by meshing the rack on the adjustment ring with the tooth groove in the connecting ring, ensuring that after the user adjusts the position of the inner and outer rings, they can remain in the desired position and will not move due to external factors.

[0019] 3. This anti-interference photoelectric sensor uses a rocker and slider design, allowing users to easily adjust the shielding distance of the shielding structure. This adjustment method is not only simple and intuitive, but also can quickly respond to different application requirements.

[0020] 4. This anti-interference photoelectric sensor provides users with an additional adjustment method through the combination of bolts and traction rods. By rotating the bolts, the traction rod can be driven to slide inside the pendulum, thereby further promoting the swing of the pendulum to achieve fine-tuning of the blocking distance, improving the adjustment accuracy and flexibility of the sensor.

[0021] 5. This anti-interference photoelectric sensor provides an additional support point for the pendulum through the spring plate, ensuring the stability of the pendulum during the swing process. At the same time, the elastic characteristics of the spring plate can also absorb external shocks and vibrations to a certain extent, improving the anti-interference ability of the sensor.

[0022] 6. This anti-interference photoelectric sensor provides a stable support platform for the inner ring through the support ring, while the limit ring limits the relative position between the inner ring and the outer ring, ensuring that the inner ring and the outer ring do not interfere with each other or produce excessive wear during rotation, and prevent the inner ring and the outer ring from losing contact with the sensing module.

[0023] 7. This anti-interference photoelectric sensor uses elasticity to support the support ring through a compression spring, which not only improves the stability of the inner ring, but also can alleviate stress concentration caused by external temperature changes, vibrations, etc. to a certain extent, helping to extend the service life of the sensor and maintain its stable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 This is a left-side structural schematic diagram of the present utility model;

[0026] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the partial structure separation of the utility model;

[0028] Figure 5 It is a bottom view schematic diagram of the local structure of the present invention.

[0029] In the figure: 1. Sensing module; 2. Sensing end; 3. Shielding structure; 4. Inner ring; 5. Outer ring; 6. Connecting ring; 7. Positioning structure; 8. Adjusting ring; 9. Rack; 10. Tooth groove; 11. Adjusting structure; 12. Connecting block; 13. Rocker arm; 14. Bracket; 15. Sliding rod; 16. Bolt; 17. Traction rod; 18. Spring plate; 19. Support ring; 20. Limiting ring; 21. Compression spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example 1:

[0031] Reference Figure 1-5 , an anti-interference photoelectric sensor, comprising a sensing module 1;

[0032] A sensing terminal 2 electrically connected to one side of the sensing module 1;

[0033] The surface of the sensing module 1 is provided with a shielding structure 3, which includes an inner ring 4 provided on the surface of the sensing module 1, and an outer ring 5 located at the bottom of the inner ring 4 is provided at the bottom of the sensing module 1. The shapes of the inner ring 4 and the outer ring 5 are both arc-shaped and can form a closed chamber to shield the sensing end 2. The surfaces of the inner ring 4 and the outer ring 5 are fixedly connected with a connecting ring 6 sleeved on the surface of the sensing module 1. The connecting ring 6 is slidably connected to the sensing module 1 and the inner ring 4 and the outer ring 5 can be rotated on the surface of the sensing module 1 through the connecting ring 6. The inner ring 4 and the outer ring 5 can change the overlapping area by rotation and expose part of the sensing end 2 to the outside. The surface of the sensing module 1 is provided with a positioning structure 7, which can adjust the inner ring 4 and the outer ring 5 after adjustment. The ring 5 is fixed, and a closed chamber is formed between the inner ring 4 and the outer ring 5 to block the sensing end 2, which can effectively reduce the influence of external interference on the sensor. At the same time, the inner ring 4 and the outer ring 5 can rotate and change the overlapping area, so that part of the sensing end 2 can be exposed, thereby realizing flexible control of the collection direction. The positioning structure 7 includes an adjustment ring 8 mounted on the surface of the sensing module 1, and the surface of the adjustment ring 8 is fixedly connected to the rack 9. The inner surface of the connecting ring 6 is provided with a tooth groove 10, and the side of the rack 9 away from the adjustment ring 8 can extend to the inside of the tooth groove 10 and mesh with the tooth groove 10. The surface of the sensing module 1 is provided with an adjustment structure 11, which can adjust the blocking distance of the shielding structure 3. The adjustment structure 11 includes The invention comprises a connecting block 12 fixedly connected to the top of the sensing module 1, and a rocker arm 13 is movably connected to both sides of the connecting block 12 through a pin shaft. A bracket 14 is fixedly connected to the surface of the adjusting ring 8, and the bracket 14 extends to the inner side of the rocker arm 13 away from the side of the adjusting ring 8. The surface of the bracket 14 is fixedly connected to a slide bar 15 located inside the rocker arm 13, and the slide bar 15 is slidably connected to the rocker arm 13. During the swinging process, the rocker arm 13 can use the slide bar 15 to push the bracket 14 together with the adjusting ring 8 to slide horizontally. A bolt 16 is threadedly connected to the top of the sensing module 1, and one end of the bolt 16 located on the inner side of the rocker arm 13 is movably connected to a traction rod 17. Both ends of the traction rod 17 extend to the inner side of the rocker arm 13 and are slidably connected to the rocker arm 13. The bolt 16 is connected to the top of the sensing module 1 through a pin shaft. During the horizontal movement of the thread, it can drive the traction rope to slide inside the pendulum rod 13 and push the pendulum rod 13 to swing. The surface of the pendulum rod 13 is fixedly connected with a spring plate 18. The side of the spring plate 18 away from the pendulum rod 13 contacts the top of the sensing module 1. The spring plate 18 is elastic. The surface of the inner ring 4 is fixedly connected with a support ring 19 sleeved on the surface of the sensing module 1. The surface of the sensing module 1 is fixedly connected with a limiting ring 20 located between the inner ring 4 and the outer ring 5. The limiting ring 20 is located on the right side of the support ring 19. The left side of the limiting ring 20 is fixedly connected with a compression spring 21 sleeved on the surface of the sensing module 1. The side of the compression spring 21 away from the limiting ring 20 contacts the surface of the support ring 19. The compression spring 21 can use its elasticity to support the support ring 19.

[0034] Specifically, when the anti-interference photoelectric sensor is working / in use: the core part of the photoelectric sensor includes a sensing module 1 and a sensing end 2 electrically connected thereto. The surface of the sensing module 1 is designed with a shielding structure 3, which is mainly composed of an inner ring 4 and an outer ring 5. Both are arc-shaped and can form a closed chamber to shield the sensing end 2. The inner ring 4 is located at the center of the surface of the sensing module 1, and the outer ring 5 is located at the bottom of the inner ring 4, surrounding and partially covering the inner ring 4. Connecting rings 6 are fixed to the surfaces of the inner ring 4 and the outer ring 5. These connecting rings 6 are slidably connected to the sensing module 1, so that the inner ring 4 and the outer ring 5 can be in the sensing module 1. The surface of the module 1 rotates. When it is necessary to adjust the collection direction of the sensing end 2 or change its exposure level to cope with different interference environments, the user can change the overlapping area between them by rotating the inner ring 4 and the outer ring 5. In this way, part of the sensing end 2 will be exposed, while other parts will still be blocked. This design allows the user to flexibly adjust the collection direction and range of the sensing end 2 according to actual needs. In order to ensure that the inner ring 4 and the outer ring 5 can maintain a stable position after adjustment, the surface of the sensing module 1 is also designed with a positioning structure 7. This structure includes an adjustment ring 8 sleeved on the surface of the sensing module 1, and the surface of the adjustment ring 8 is fixed with teeth. The rack 9 is provided on the inner surface of the connecting ring 6, and the rack 9 can extend into the tooth groove 10 and mesh with the tooth groove 10, thereby fixing the position of the inner ring 4 and the outer ring 5. In order to further adjust the shielding distance of the shielding structure 3, an adjustment structure 11 is also provided on the sensing module 1. A bracket 14 is fixed on the surface of the adjusting ring 8. One side of the bracket 14 extends to the inner side of the rocker 13, and a slide bar 15 is fixed on its surface. When the rocker 13 swings, it uses the slide bar 15 to push the bracket 14 together with the adjusting ring 8 to slide horizontally and apply pressure when the rack 9 is fully inserted into the tooth groove 10 and push the inner ring 4 and the outer ring 5 to move outward synchronously. The movement changes the shielding distance of the shielding structure 3. In order to more accurately control the swing of the rocker arm 13, a bolt 16 is threadedly connected to the top of the sensing module 1. A traction rod 17 is movably connected to the inner side of the bolt 16. Both ends of the traction rod 17 extend to the inner side of the rocker arm 13 and are slidably connected to the rocker arm 13. When the bolt 16 moves horizontally through the thread, it drives the traction rod 17 to slide inside the rocker arm 13 and pushes the rocker arm 13 to swing. In addition, a support ring 19 is fixed to the surface of the inner ring 4. The elasticity of the compression spring 21 can support the support ring 19, thereby ensuring that the inner ring 4 and the outer ring 5 can remain stable during rotation and positioning.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-interference photoelectric sensor, comprising a sensing module (1); A sensing terminal (2) electrically connected to one side of the sensing module (1); It is characterized by: The surface of the sensing module (1) is provided with a shielding structure (3), the shielding structure (3) includes an inner ring (4) provided on the surface of the sensing module (1), the bottom of the sensing module (1) is provided with an outer ring (5) located at the bottom of the inner ring (4), the inner ring (4) and the outer ring (5) are both arc-shaped and can form a closed chamber to shield the sensing end (2), the surfaces of the inner ring (4) and the outer ring (5) are fixedly connected with a connecting ring (6) sleeved on the surface of the sensing module (1), the connecting ring (6) is slidably connected to the sensing module (1), and the inner ring (4) and the outer ring (5) can rotate on the surface of the sensing module (1) through the connecting ring (6), the inner ring (4) and the outer ring (5) can change the overlapping area by rotating and expose part of the sensing end (2) to the outside, and the surface of the sensing module (1) is provided with a positioning structure (7), and the positioning structure (7) can fix the adjusted inner ring (4) and the outer ring (5).

2. The anti-interference photoelectric sensor according to claim 1, characterized in that: The positioning structure (7) includes an adjustment ring (8) sleeved on the surface of the sensing module (1), a rack (9) is fixedly connected to the surface of the adjustment ring (8), a tooth groove (10) is provided on the inner surface of the connecting ring (6), and the side of the rack (9) away from the adjustment ring (8) can extend to the inside of the tooth groove (10) and mesh with the tooth groove (10), and an adjustment structure (11) is provided on the surface of the sensing module (1), and the adjustment structure (11) can adjust the shielding distance of the shielding structure (3).

3. The anti-interference photoelectric sensor according to claim 2, characterized in that: The adjustment structure (11) includes a connecting block (12) fixedly connected to the top of the sensing module (1), both sides of the connecting block (12) are movably connected to a rocking rod (13) via a pin shaft, a bracket (14) is fixedly connected to the surface of the adjustment ring (8), the bracket (14) extends to the inner side of the rocking rod (13) away from the side of the adjustment ring (8), and a sliding rod (15) located inside the rocking rod (13) is fixedly connected to the surface of the bracket (14), the sliding rod (15) is slidably connected to the rocking rod (13), and the rocking rod (13) can use the sliding rod (15) to push the bracket (14) and the adjustment ring (8) to slide horizontally during the swinging process.

4. The anti-interference photoelectric sensor according to claim 3, characterized in that: The top of the sensing module (1) is threadedly connected to a bolt (16), and one end of the bolt (16) located inside the pendulum (13) is movably connected to a traction rod (17). Both ends of the traction rod (17) extend to the inside of the pendulum (13) and are slidably connected to the pendulum (13). During the horizontal movement of the bolt (16) through the thread, the traction rope can be driven to slide inside the pendulum (13) and push the pendulum (13) to swing.

5. The anti-interference photoelectric sensor according to claim 3, characterized in that: A spring plate (18) is fixedly connected to the surface of the swing rod (13), and a side of the spring plate (18) away from the swing rod (13) contacts the top of the sensing module (1), and the spring plate (18) is elastic.

6. The anti-interference photoelectric sensor according to claim 2, characterized in that: The surface of the inner ring (4) is fixedly connected to a support ring (19) sleeved on the surface of the sensing module (1), and the surface of the sensing module (1) is fixedly connected to a limiting ring (20) located between the inner ring (4) and the outer ring (5), and the limiting ring (20) is located on the right side of the support ring (19).

7. The anti-interference photoelectric sensor according to claim 6, characterized in that: The left side of the limiting ring (20) is fixedly connected to a compression spring (21) sleeved on the surface of the sensing module (1), and the side of the compression spring (21) away from the limiting ring (20) contacts the surface of the support ring (19), and the compression spring (21) can support the support ring (19) by using elasticity.

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