Photoelectric sensor with variable optical axis

Abstract

The utility model relates to a photoelectric sensor with a variable optical axis, which belongs to the technical field of photoelectric sensors and comprises a casing and a photoelectric lens, a fixed ball is fixedly mounted in the middle of the inside of the casing, one side of the photoelectric lens is rotatably connected with the fixed ball, a turntable is rotatably mounted inside the casing, and a miniature electric telescopic rod is fixedly mounted on the turntable. A movable ball is fixedly installed at the telescopic end of the micro electric telescopic rod, an elastic rod is fixedly installed on one side of the photoelectric lens, a connecting base is fixedly installed at one end of the elastic rod, the movable ball is rotationally connected with the connecting base, and the micro electric telescopic rod drives the photoelectric lens to incline on the fixed ball, so that the optical axis orientation of the photoelectric lens is changed. And the pulling position of the photoelectric lens is adjusted by rotating the turntable, so that the photoelectric lens rotates on the fixed ball along with the micro electric telescopic rod, the effect of universally adjusting the orientation of the photoelectric lens is achieved, the applicability is high, and the whole body does not need to be disassembled and assembled during adjustment.

Description

Technical Field

[0001] This utility model relates to the field of photoelectric sensor technology, and in particular to a photoelectric sensor with variable optical axis. Background Technology

[0002] A photoelectric sensor is a device that converts light signals into electrical signals. Its working principle is based on the photoelectric effect. The photoelectric effect refers to the phenomenon where, when light shines on certain materials, the electrons in the material absorb the energy of the photons, resulting in a corresponding electrical effect. Photoelectric sensors are key components in various photoelectric detection systems for photoelectric conversion, possessing advantages such as high accuracy, fast response, and non-contact operation. They can also measure a wide range of parameters, have simple structures, and are flexible in various forms. Therefore, photoelectric sensors are widely used in detection and control. However, in some devices, the installation position of the photoelectric sensor limits the direction of the optical axis. When it is necessary to change the orientation of the optical axis, the entire photoelectric sensor needs to be disassembled and its installation position adjusted. This is not only inconvenient to operate, but also makes the use of the photoelectric sensor difficult in some devices due to the limited installation position. Therefore, a photoelectric sensor with a variable optical axis is needed to adapt to different installation conditions. Summary of the Invention

[0003] To overcome the technical defects of the existing technology, this utility model provides a variable optical axis photoelectric sensor, which has the effect of easy universal adjustment of the orientation of the optical axis, and facilitates the adjustment operation of the orientation of the optical axis without disassembling the whole unit.

[0004] The technical solution adopted by this utility model is: a variable optical axis photoelectric sensor, including a housing and a photoelectric lens. A fixed ball is fixedly installed in the middle of the housing. One side of the photoelectric lens is rotatably connected to the fixed ball. A turntable is rotatably installed inside the housing. A miniature electric telescopic rod is fixedly installed on the turntable. A movable ball is fixedly installed at the telescopic end of the miniature electric telescopic rod. An elastic rod is fixedly installed on one side of the photoelectric lens. A connecting seat is fixedly installed at one end of the elastic rod. The movable ball is rotatably connected to the connecting seat. In use, the housing is first installed in a predetermined position on the device and fixed, so that the photoelectric lens... The lens is oriented towards the desired illumination location. When the optical axis of the photoelectric lens needs adjustment, the movable ball is retracted via the miniature electric telescopic rod. This movable ball then moves the connecting seat towards the turntable. The elastic rod causes the photoelectric lens to rotate on the fixed ball, resulting in a tilt. The deformation of the elastic rod prevents jamming. When the photoelectric lens tilts, the illumination direction of the optical axis changes. Rotating the turntable causes the photoelectric lens to rotate with it on the fixed ball, achieving omnidirectional adjustment of the photoelectric lens's orientation and improving its usability.

[0005] Preferably, the housing is a cylindrical structure with an opening at one end, and the housing is connected to the outside through the opening. The photoelectric lens is located inside the housing near the opening, so that the illumination direction of the optical axis of the photoelectric lens extends to the outside through the opening to detect external objects.

[0006] Preferably, a first sealing ring is fixedly installed inside one end of the housing, and a second sealing ring is fixedly installed on the outside of the photoelectric lens. The first sealing ring and the second sealing ring are in contact. The sealing performance inside the housing is improved by the first sealing ring and the second sealing ring, and the elasticity of the first sealing ring and the second sealing ring avoids affecting the deflection of the photoelectric lens.

[0007] Preferably, mounting feet are fixedly installed in a circumferential array on one side of the housing, and a notch is opened on one side of the housing. One side of the turntable extends to the outside of the housing through the notch. The mounting feet facilitate the overall installation of this technical solution, and the notch facilitates the turning of the turntable to rotate.

[0008] Preferably, a ball seat is fixedly installed at the middle position of one end of the photoelectric lens, and the fixed ball is rotatably mounted on the ball seat, so that the ball seat covers one side of the fixed ball, preventing the fixed ball from falling off the photoelectric lens, and facilitating the rotation of the photoelectric lens on the fixed ball through the ball seat.

[0009] Preferably, a fixing rod is fixedly installed in the middle of the interior of the housing, and a fixing ball is fixedly installed at one end of the fixing rod, so that there is a certain distance between the fixing ball and the turntable, which facilitates the installation of the miniature electric telescopic rod.

[0010] Preferably, an annular groove is provided on one side of the interior of the housing, and one side of the turntable is rotatably engaged inside the groove. When the turntable rotates, it rotates along the groove.

[0011] Preferably, a slip ring is fixedly installed on one side of the turntable. The slip ring is rotatably installed inside the slide groove. The slip ring, the movable ball, and the fixed ball are all made of rubber. This creates a damping effect between the slip ring and the slide groove, between the movable ball and the connecting seat, and between the fixed ball and the ball seat, preventing movement when not adjusted and improving stability during use.

[0012] The beneficial effects of this utility model are: by using a miniature electric telescopic rod to tilt the photoelectric lens on the fixed ball, the orientation of the optical axis of the photoelectric lens changes. After tilting, the pulling position of the photoelectric lens can be adjusted by rotating the turntable, so that the photoelectric lens rotates on the fixed ball with the miniature electric telescopic rod, achieving the effect of universal adjustment of the orientation of the photoelectric lens. It has strong applicability, and no disassembly of the whole unit is required during adjustment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model after partial cross-section;

[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model after the shell has been removed;

[0016] Figure 4 This is a structural diagram showing the location of the housing of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the shell after partial cross-section in this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Photoelectric lens; 3. Fixed ball; 4. Turntable; 5. Miniature electric telescopic rod; 6. Movable ball; 7. Elastic rod; 8. Connecting seat; 9. First sealing ring; 10. Second sealing ring; 11. Mounting foot; 12. Notch; 13. Ball seat; 14. Fixed rod; 15. Slide groove; 16. Slip ring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] like Figures 1-5 As shown, this embodiment provides a variable optical axis photoelectric sensor, including a housing 1 and a photoelectric lens 2. A fixed ball 3 is fixedly installed in the middle of the interior of the housing 1. One side of the photoelectric lens 2 is rotatably connected to the fixed ball 3. A turntable 4 is rotatably installed inside the housing 1. A miniature electric telescopic rod 5 is fixedly installed on the turntable 4. A movable ball 6 is fixedly installed at the telescopic end of the miniature electric telescopic rod 5. An elastic rod 7 is fixedly installed on one side of the photoelectric lens 2. A connecting seat 8 is fixedly installed at one end of the elastic rod 7. The movable ball 6 is rotatably connected to the connecting seat 8. In use, the housing is first installed in the set position on the device and fixed so that the optical axis... The photoelectric lens 2 is oriented towards the position to be illuminated. When the optical axis of the photoelectric lens 2 needs to be adjusted, the movable ball 6 is retracted by the miniature electric telescopic rod 5. The movable ball 6 then moves the connecting seat 8 towards the turntable 4. Through the elastic rod 7, the photoelectric lens 2 rotates on the fixed ball 3, causing the photoelectric lens 2 to tilt. Due to the deformation of the elastic rod 7, jamming is avoided. When the photoelectric lens 2 tilts, the illumination direction of the optical axis changes. By rotating the turntable 4, the photoelectric lens 2 rotates with the turntable 4 on the fixed ball 3, achieving the effect of universal adjustment of the orientation of the photoelectric lens 2, thus improving its applicability during use.

[0021] As a technical optimization solution of this utility model, specifically as follows: Figures 1-3As shown, the housing 1 has a cylindrical structure with an opening at one end, through which it connects to the outside. The photoelectric lens 2 is located inside the housing 1 near the opening, allowing the optical axis of the photoelectric lens 2 to extend outwards through the opening for detecting external objects. This prevents the housing 1 from obstructing the optical axis. A first sealing ring 9 is fixedly installed inside one end of the housing 1, and a second sealing ring 10 is fixedly installed on the outside of the photoelectric lens 2. The first sealing ring 9 and the second sealing ring 10 are in contact, improving the sealing performance inside the housing 1. The elasticity of the first sealing ring 9 and the second sealing ring 10 also prevents interference with the deflection of the photoelectric lens 2, improving usability during use. Mounting feet 11 are fixedly installed in a circular array on the outer side of one end of the housing 1, and a notch 12 is provided on one side of the housing 1. One side of the turntable 4 extends into the housing 1 through the notch 12. Externally, mounting feet 11 facilitate the overall installation of this technical solution, and notches 12 facilitate the turning of the turntable 4, causing it to rotate. The outer periphery of the turntable 4 is provided with raised anti-slip textures to increase friction during turning and improve the smoothness of turning. A ball seat 13 is fixedly installed at the middle of one end of the photoelectric lens 2, and a fixed ball 3 is rotatably mounted on the ball seat 13. The ball seat 13 covers one side of the fixed ball 3 to prevent the fixed ball 3 from falling off the photoelectric lens 2, and facilitates the rotation of the photoelectric lens 2 on the fixed ball 3 via the ball seat 13 to adjust the optical axis orientation of the photoelectric lens 2. A fixing rod 14 is fixedly installed at the middle of the interior of the housing 1, and the fixed ball 3 is fixedly installed at one end of the fixing rod 14. The fixing rod 14 creates a certain distance between the fixed ball 3 and the turntable 4, facilitating the installation of the miniature electric telescopic rod 5.

[0022] As a technical optimization solution of this utility model, specifically as follows: Figure 3 and Figure 5 As shown, a ring-shaped groove 15 is provided on one side of the interior of the housing 1. One side of the turntable 4 is rotatably engaged inside the groove 15. When the turntable 4 rotates, it rotates along the groove 15, which facilitates the adjustment of the orientation of the photoelectric lens 2. A slip ring 16 is fixedly installed on one side of the turntable 4. The slip ring 16 is rotatably installed inside the groove 15. The slip ring 16, the movable ball 6, and the fixed ball 3 are all made of rubber, which creates a damping effect between the slip ring 16 and the groove 15, between the movable ball 6 and the connecting seat 8, and between the fixed ball 3 and the ball seat 13. This prevents movement when no adjustment is made, improves the stability during use, and enhances the stability of the turntable 4 when it rotates on the groove 15 through the slip ring 16.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A variable optical axis photoelectric sensor, characterized in that: The device includes a housing (1) and a photoelectric lens (2). A fixed ball (3) is fixedly installed in the middle of the interior of the housing (1). One side of the photoelectric lens (2) is rotatably connected to the fixed ball (3). A turntable (4) is rotatably installed inside the housing (1). A miniature electric telescopic rod (5) is fixedly installed on the turntable (4). A movable ball (6) is fixedly installed at the telescopic end of the miniature electric telescopic rod (5). An elastic rod (7) is fixedly installed on one side of the photoelectric lens (2). A connecting seat (8) is fixedly installed at one end of the elastic rod (7). The movable ball (6) is rotatably connected to the connecting seat (8).

2. The optical axis variable photoelectric sensor according to claim 1, characterized in that: The housing (1) is a cylindrical structure with an opening at one end, and the housing (1) is connected to the outside through the opening. The photoelectric lens (2) is located inside the housing (1) on the side close to the opening.

3. The optical axis variable photoelectric sensor according to claim 1, characterized in that: A first sealing ring (9) is fixedly installed inside one end of the housing (1), and a second sealing ring (10) is fixedly installed on the outside of the photoelectric lens (2). The first sealing ring (9) is in contact with the second sealing ring (10).

4. The optical axis variable photoelectric sensor according to claim 1, characterized in that: The outer side of one end of the housing (1) is fixedly equipped with mounting feet (11) in a circular array, and a notch (12) is opened on one side of the housing (1). One side of the turntable (4) extends to the outside of the housing (1) through the notch (12).

5. The optical axis variable photoelectric sensor according to claim 1, characterized in that: A ball seat (13) is fixedly installed at the middle position of one end of the photoelectric lens (2), and the fixed ball (3) is rotatably installed on the ball seat (13).

6. The optical axis variable photoelectric sensor according to claim 1, characterized in that: A fixing rod (14) is fixedly installed in the middle of the interior of the housing (1), and the fixing ball (3) is fixedly installed at one end of the fixing rod (14).

7. The optical axis variable photoelectric sensor according to claim 1, characterized in that: The housing (1) has an annular groove (15) on one side inside, and one side of the turntable (4) is rotatably engaged inside the groove (15).

8. The optical axis variable photoelectric sensor according to claim 7, characterized in that: A slip ring (16) is fixedly installed on one side of the turntable (4). The slip ring (16) is rotatably installed inside the slide groove (15). The slip ring (16), the movable ball (6), and the fixed ball (3) are all made of rubber.

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