Subminiature high-directivity photoelectric detector

Abstract

The invention relates to the technical field of photoelectric detectors, and discloses a subminiature high-directivity photoelectric detector which comprises a base, a support is fixedly connected to the top of the base, an adjusting column is slidably connected to the interior of the support, a connecting column is rotatably connected to the interior of the adjusting column, and a handle is fixedly connected to the exterior of the connecting column. The side, away from the handle, of the adjusting column is fixedly connected with a limiting plate, one side of the support is fixedly connected with a first toothed plate, the side, close to the first toothed plate, of the support is fixedly connected with a second toothed plate, the outer portion of the adjusting column is rotationally connected with a toothed ring, and the top of the toothed ring is detachably connected with a connecting plate. According to the photoelectric detector, the detector can accurately detect optical signals at different angles, the requirements for diversification of optical signal detection directions in the fields of optical communication, environment monitoring, industrial detection and the like are met, and the stability and reliability of connection between the photoelectric detector body and an external signal transmission line are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of photodetectors, and particularly to a super-small high-directivity photodetector. Background Art

[0002] A super-small high-directivity photodetector is a photoelectric device that converts optical signals into electrical signals based on principles such as the photovoltaic effect and the photoconductive effect. It has the characteristics of small volume and easy integration, can efficiently detect optical signals in a specific direction, reduce interference from optical signals in other directions, and has a wide range of applications in the fields of optical communication, lidar, aerospace, biomedicine, etc., which can improve the performance of the system such as accuracy, stability, and resolution.

[0003] In the prior art, some photodetectors need to be firmly installed on the base bracket during use to ensure the orderly development of detection work. However, the existing brackets generally have significant defects and do not have a steering function. This leads to the situation that in the actual use process, once it is necessary to adjust the angle of the detector according to factors such as different incident angles of light and detection environments, the traditional bracket is unable to cope and cannot meet the diverse detection requirements. Therefore, in view of the above problems, a super-small high-directivity photodetector is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a super-small high-directivity photodetector to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides a super-small high-directivity photodetector, including a base, a bracket is fixedly connected to the top of the base, an adjustment column is slidably connected inside the bracket, a connection column is rotatably connected inside the adjustment column, a handle is fixedly connected to the outside of the connection column, a limit plate is fixedly connected to the side of the adjustment column away from the handle, a first toothed plate is fixedly connected to one side of the bracket, a second toothed plate is fixedly connected to the side of the bracket close to the first toothed plate, a toothed ring is rotatably connected to the outside of the adjustment column, an adapter plate is detachably connected to the top of the toothed ring, an adjustment assembly is arranged inside the adapter plate, and an anti-disengagement assembly is arranged outside the adapter plate;

[0006] Preferably, the adjustment assembly includes a ratchet wheel, the outside of the ratchet wheel is rotatably connected to the inner bottom wall of the adapter plate, a ratchet pawl is rotatably connected inside the adapter plate, the external teeth of the ratchet wheel are in contact with the outside of the ratchet pawl, and a photodetector body is fixedly connected to the top of the ratchet wheel;

[0007] Preferably, the external teeth of the first toothed plate are meshed with the external teeth on one side of the toothed ring, the external teeth of the second toothed plate are meshed with the external teeth on the other side of the toothed ring, the outside of the handle is in contact with the front side of the bracket, and the outside of the limiting plate is in contact with the rear side of the bracket;

[0008] Preferably, a connection hole is provided at the bottom of the connecting plate, a fixing bolt is detachably connected inside the toothed ring, the outside of the fixing bolt is slidably connected inside the connection hole, and a nut is threadedly connected to the outside of the fixing bolt;

[0009] Preferably, an interface is provided on the front side of the photodetector body, a guiding ring is fixedly connected inside the interface, a connector is detachably connected inside the guiding ring, a connecting wire is fixedly connected to the outside of the connector, two limiting blocks are fixedly connected to the outside of the connector, sliding grooves are provided on both the upper and lower sides inside the guiding ring, and an annular groove is provided inside the guiding ring;

[0010] Preferably, the outside of the limiting block is slidably connected to the inner wall of the sliding groove, the outside of the limiting block is rotatably connected to the inner wall of the annular groove, and a plurality of installation grooves are provided inside the base;

[0011] Preferably, the anti - detachment component includes two cavities, the two cavities are respectively provided inside the left and right sides of the guiding ring, a clamping column is slidably connected to the inner wall of the cavity, an adjusting rotating plate is rotatably connected to one end of the clamping column, a clamping block is fixedly connected to the other end of the clamping column, and a spring is sleeved on the outside of the clamping column;

[0012] Preferably, one end of the spring is fixedly connected to the inner wall of the cavity, the other end of the spring is fixedly connected to the outside of the clamping column, two clamping grooves are provided on the outside of the connector, and the outside of the clamping block is engaged with the inner wall of the clamping groove.

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

[0014] 1. In the present invention, when the handle is rotated downward, the first toothed plate and the second toothed plate can be disengaged from the toothed ring. At this time, the position of the toothed ring outside the adjusting column can be rotated and adjusted, so as to accurately adjust the position of the photodetector body in the left - right direction. In a complex optical monitoring environment, the left - right orientation of the detector can be flexibly adjusted according to needs. When the photodetector body is rotated clockwise, the ratchet at the bottom is driven to rotate inside the connecting plate. During the rotation, the teeth of the ratchet interact with the pawl. When the rotation stops, the pawl abuts against the teeth of the ratchet to achieve limit self - locking, and the photodetector body can be rotated to the required appropriate direction. It can achieve dual adjustment in the left - right and rotational directions, enabling the detector to accurately detect optical signals at different angles, meeting the diverse requirements for the detection direction of optical signals in multiple fields such as optical communication, environmental monitoring, and industrial detection.

[0015] 2. In the present invention, two limiting blocks fixed outside the connector cooperate with the chutes opened on the upper and lower sides inside the guiding ring to guide the accurate insertion of the connector. When the limiting blocks enter the annular groove, the connector can rotate by 180 degrees. When the connector rotates to a proper position, the clamping grooves on both sides thereof correspond to the clamping blocks. The spring pushes the clamping post and the clamping block to make the clamping block enter the clamping groove, realizing the secondary fixation of the connector. During disassembly, the adjusting rotating plate is toggled to overcome the elastic force of the spring and make the clamping block disengage from the clamping groove, effectively preventing the connector from falling off due to external forces and other factors during use, ensuring the stability and reliability of the connection between the photodetector body and the external signal transmission line, and guaranteeing the stable signal transmission during the long-term use of the device. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic view of the structure of the base of the present invention;

[0018] Figure 3 It is a schematic diagram of the disassembled structure of the bracket, handle and limiting plate of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the first toothed plate of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the connecting plate of the present invention;

[0021] Figure 6 It is a schematic diagram of the structure of the connecting hole of the present invention;

[0022] Figure 7 It is a schematic diagram of the cooperation structure of the limiting block, annular groove, chute and guiding ring of the present invention;

[0023] Figure 8 is Figure 6 the enlarged view at A in

[0024] Legend:

[0025] 1. Base; 2. Bracket; 3. Adjusting column; 4. Connecting column; 5. Handle; 6. Limiting plate; 7. First toothed plate; 8. Second toothed plate; 9. Tooth ring; 10. Fixed bolt; 11. Nut; 12. Connecting plate; 13. Ratchet; 14. Pawl; 15. Photodetector body; 16. Interface; 17. Guiding ring; 18. Connector; 19. Connecting wire; 20. Limiting block; 21. Chute; 22. Annular groove; 23. Cavity; 24. Clamping post; 25. Adjusting rotating plate; 26. Clamping block; 27. Spring; 28. Clamping groove; 29. Connecting hole; 30. Installation groove. Detailed Embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Referring to Figures 1 to 2 , an embodiment provided by the present invention: a super-small high-directivity photodetector, including a base 1, the base 1 having good compressive and corrosion-resistant properties. A bracket 2 is fixedly connected to the top of the base 1. An adjusting column 3 is slidably connected inside the bracket 2. The bracket 2 has high strength and rigidity and can bear the weight of the adjusting column 3. An adapter column 4 is rotatably connected inside the adjusting column 3. The adjusting column 3 is of a cylindrical structure with high smoothness to ensure that the adapter column 4 can rotate smoothly inside it. A circular through-hole is provided inside the adjusting column 3, and the adapter column 4 is rotatably connected to the inside of the through-hole through a bearing, enabling the adapter column 4 to rotate flexibly.

[0028] An external handle 5 is fixedly connected to the outside of the adapter column 4, which is convenient for the user to hold and operate. The outside of the handle 5 is in contact with the front side outside of the bracket 2. The handle 5 is fixedly connected to the adapter column 4 through a key connection. When the user rotates the handle 5, it can drive the adapter column 4 to rotate synchronously. In the initial state of the device, the outside of the handle 5 is in contact with the front side outside of the bracket 2, playing a role in restricting the rotation of the adjusting column 3. A limiting plate 6 is fixedly connected to the side of the adjusting column 3 away from the handle 5. When the adjusting column 3 rotates, the limiting plate 6 rotates along with it.

[0029] Referring to Figures 3 to 4 , the outside of the limiting plate 6 is in contact with the rear side outside of the bracket 2. Through the friction and limiting effect between the two, the over-rotation of the adjusting column 3 is prevented, ensuring the stability and adjustment accuracy of the device. A first toothed plate 7 is fixedly connected to one side of the bracket 2, and a second toothed plate 8 is fixedly connected to the side of the bracket 2 close to the first toothed plate 7. A toothed ring 9 is rotatably connected to the outside of the adjusting column 3. When the adjusting column 3 rotates and drives the toothed ring 9 to rotate, the teeth of the first toothed plate 7 interact with the teeth of the toothed ring 9 to achieve the limitation and fixation of the toothed ring 9. At the same time, during the adjustment process, the force is transmitted through the meshing of the teeth to achieve precise adjustment of the position of the toothed ring 9.

[0030] The external teeth of the first toothed plate 7 are meshed and connected with the external teeth on one side of the toothed ring 9, and the external teeth of the second toothed plate 8 are meshed and connected with the external teeth on the other side of the toothed ring 9. The second toothed plate 8 and the first toothed plate 7 work together to limit and fix the toothed ring 9. When the toothed ring 9 rotates, the teeth of the second toothed plate 8 cooperate with the teeth of the toothed ring 9 to achieve precise control of the position of the toothed ring 9. The top of the toothed ring 9 is detachably connected with an adapter plate 12, and a connection hole 29 is opened at the bottom of the adapter plate 12. A fixing bolt 10 is detachably connected inside the toothed ring 9, and the outside of the fixing bolt 10 is slidably connected inside the connection hole 29. The connection hole 29 is used to cooperate with the fixing bolt 10 to connect the toothed ring 9.

[0031] A nut 11 is threadedly connected to the outside of the fixing bolt 10. The fixing bolt 10 ensures a tight fit with the nut 11. The surface of the nut 11 is knurled to increase the friction, which is convenient for users to manually tighten and loosen. An adjusting component is arranged inside the adapter plate 12. The adjusting component includes a ratchet wheel 13. The outside of the ratchet wheel 13 is rotatably connected to the inner wall of the bottom end of the adapter plate 12. A ratchet pawl 14 is rotatably connected inside the adapter plate 12. The ratchet wheel 13 can cooperate well with the ratchet pawl 14 to ensure accurate limiting and self-locking functions during rotation. The external teeth of the ratchet wheel 13 are in contact with the outside of the ratchet pawl 14. When the ratchet wheel 13 stops rotating, the chuck can abut against the teeth of the ratchet wheel 13 to achieve limiting self-locking.

[0032] A photodetector body 15 is fixedly connected to the top of the ratchet wheel 13. The photodetector body 15 is the core component of the whole device and undertakes the key task of converting optical signals into electrical signals. Its characteristics of high sensitivity and high directivity enable the device to accurately detect optical signals in a specific direction and are widely used in fields with extremely high requirements for the detection accuracy of optical signals, such as optical communication, environmental monitoring, and industrial detection. The fixing bolt 10 and the nut 11 play a role in connecting the toothed ring 9 and the adapter plate 12 in the device, ensuring a stable connection between the photodetector body 15 and the toothed ring 9. At the same time, their detachable characteristics also provide convenience for the maintenance and repair of the device.

[0033] Refer to Figures 5 to 6 , an interface 16 is opened on the front side of the photodetector body 15. A guide ring 17 is fixedly connected inside the interface 16. A connector 18 is detachably connected inside the guide ring 17. The interface 16 is used to connect the connector 18. The guide ring 17 provides guidance and preliminary positioning for the installation of the connector 18, which can not only ensure the guiding effect when the connector 18 is inserted but also not generate too much resistance. A connecting wire 19 is fixedly connected to the outside of the connector 18. One end of the connector 18 and the connecting wire 19 are fixedly connected by welding to ensure the stability of signal transmission.

[0034] There are two limit blocks 20 fixedly connected to the outside of the joint 18. Sliding grooves 21 are provided on both the upper and lower sides inside the guiding ring 17. When the joint 18 is inserted into the guiding ring 17, the limit blocks 20 enter the sliding grooves 21 inside the guiding ring 17 accordingly. The outside of the limit blocks 20 is slidably connected to the inner wall of the sliding grooves 21. The sliding grooves 21 provide a sliding track for the limit blocks 20 and guide the joint 18 to be accurately inserted into the appropriate position. A ring groove 22 is provided inside the guiding ring 17. When the joint 18 is inserted to a certain depth, the limit blocks 20 enter the ring groove 22 inside the guiding ring 17. At this time, the joint 18 can rotate 180 degrees around the limit blocks 20 within the ring groove 22, providing conditions for subsequent cooperation with the anti-detachment component to fix the joint 18.

[0035] Referring to Figures 7 to 8 , the outside of the limit blocks 20 is rotatably connected to the inner wall of the ring groove 22. The inner diameter of the ring groove 22 is slightly larger than the length of the limit blocks 20, and the outer diameter is slightly smaller than the inner diameter of the guiding ring 17 to ensure that the limit blocks 20 can rotate flexibly within the ring groove 22 while not affecting the overall structural strength of the guiding ring 17. The ring groove 22 and the sliding grooves 21 cooperate with each other to jointly guide and restrict the installation and fixing process of the joint 18. An anti-detachment component is provided on the outside of the connecting plate 12. The anti-detachment component includes two cavities 23. The two cavities 23 are respectively provided inside the left and right sides of the guiding ring 17. The inner wall of the cavity 23 is slidably connected to the clamping post 24. The outer diameter of the cavity 23 and the clamping post 24 are closely matched to ensure that the clamping post 24 can slide smoothly therein.

[0036] One end of the clamping post 24 is rotatably connected to an adjusting rotating plate 25. On the outside of the adjusting rotating plate 25, there are protrusions for the convenience of the user's operation, facilitating the user to toggle the adjusting rotating plate 25. The other end of the clamping post 24 is fixedly connected to a clamping block 26. A spring 27 is sleeved on the outside of the clamping post 24. One end of the spring 27 is fixedly connected to the inner wall of the cavity 23, and the other end of the spring 27 is fixedly connected to the outside of the clamping post 24. Two clamping grooves 28 are provided on the outside of the joint 18. The clamping block 26 can smoothly enter the clamping grooves 28 under the action of the spring 27 to fix the joint 18. When it is necessary to disassemble the joint 18, by toggling the adjusting rotating plate 25 to overcome the elastic force of the spring 27, the clamping block 26 can be disengaged from the clamping grooves 28. The outside of the clamping block 26 is engaged with the inner wall of the clamping grooves 28. When the joint 18 is inserted into the guiding ring 17 and rotated to the appropriate position, the clamping grooves 28 on both sides of the joint 18 correspond to the clamping blocks 26. At this time, the spring 27 pushes the clamping post 24 and the clamping block 26, causing the clamping block 26 to enter the clamping grooves 28 to realize the secondary fixation of the joint 18.

[0037] The clamping block 26 can be closely fitted with the clamping groove 28 outside the connector 18 to firmly fix the connector 18. When it is necessary to disassemble the connector 18, the adjusting rotating plate 25 is toggled to make the outside of the adjusting rotating plate 25 vertical with the outside of the guiding ring 17. At this time, the clamping column 24 slides outwards, the spring 27 is compressed by force, the clamping block 26 disengages from the clamping groove 28, and the connector 18 can be taken out from the guiding ring 17. A plurality of mounting grooves 30 are provided inside the base 1. The mounting grooves 30 are the basic structures for connecting the entire device to the external installation environment, providing diversified mounting methods and stable mounting conditions for the base 1.

[0038] Working principle: First, place the base 1 in a suitable position, and then use the mounting grooves 30 and the matching accessories to install the base 1 at the designated position. Then, turn the handle 5 downwards. At this time, the handle 5 drives the connecting column 4 to rotate inside the adjusting column 3. At this time, the outside of the handle 5 no longer contacts the outside of the bracket 2, and the limiting plate 6 no longer contacts the outside of the bracket 2 due to force. At this time, the external teeth of the first toothed plate 7 and the external teeth of the toothed ring 9 are no longer in a meshing state. At the same time, the external teeth of the second toothed plate 8 and the external teeth of the toothed ring 9 are also no longer in a meshing state. At this time, the toothed ring 9 is no longer fixed and can be rotated to adjust the position of the toothed ring 9 outside the adjusting column 3, thereby adjusting the position of the photodetector body 15 in the left-right direction. After adjusting to a suitable position, turn the handle 5 back to its original state. At this time, the outside of the handle 5 and the toothed ring 9 will abut against the outside of the bracket 2, reducing the position between the brackets 2. As a result, the first toothed plate 7 meshes with the external teeth on one side of the toothed ring 9, and the second toothed plate 8 meshes with the external teeth on the other side of the toothed ring 9, realizing the fixation of the toothed ring 9.

[0039] Then, rotate the photodetector body 15 clockwise according to the usage direction. At this time, the photodetector body 15 will drive the ratchet 13 at the bottom to rotate inside the connecting plate 12. When the ratchet 13 rotates, the external teeth on the outside contact the outside of the pawl 14. When the ratchet 13 stops rotating, the pawl 14 abuts against the external teeth of the ratchet 13, which can limit and self-lock the ratchet 13 and rotate the photodetector body 15 to the appropriate direction where it needs to be placed.

[0040] After that, the connector 18 is inserted into the interior of the interface 16. At this time, the guide ring 17 has a guiding effect on the connector 18. Then, the limit block 20 slides on the inner wall of the slide groove 21. When the limit block 20 enters the inner wall of the ring groove 22, the connector 18 is rotated 180 degrees. Then, the adjustment rotating plate 25 is toggled. At this time, the outer part of the adjustment rotating plate 25 and the outer part of the guide ring 17 are in a vertical state, thereby pulling the clamping column 24 to slide outward, and at the same time, the spring 27 is compressed. When the slots 28 on both sides of the connector 18 are rotated to be parallel to the clamping block 26, the adjusting rotating plate 25 is rotated to be parallel to the outer part of the guide ring 17. At this time, the spring 27 is no longer compressed, and the clamping column 24 is pushed to reset due to its own elastic properties, so that the clamping block 26 enters the inner wall of the slot 28, so that the connector 18 can be fixed for a second time to prevent the connector 18 from falling off during use. Then, the connecting line 19 can be connected to the power supply.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A super-small highly directional photodetector, comprising a base (1), characterized in that: A bracket (2) is fixedly connected to the top of the base (1). An adjusting column (3) is slidably connected inside the bracket (2). A connecting column (4) is rotatably connected inside the adjusting column (3). A handle (5) is fixedly connected to the outside of the connecting column (4). A limiting plate (6) is fixedly connected to the side of the adjusting column (3) away from the handle (5). A first toothed plate (7) is fixedly connected to one side of the bracket (2). A second toothed plate (8) is fixedly connected to the side of the bracket (2) close to the first toothed plate (7). A toothed ring (9) is rotatably connected to the outside of the adjusting column (3). An adapter plate (12) is detachably connected to the top of the toothed ring (9). An adjusting assembly is arranged inside the adapter plate (12), and an anti-disengagement assembly is arranged outside the adapter plate (12).

2. The ultra-small highly directional photodetector according to claim 1, characterized in that: The adjusting assembly includes a ratchet wheel (13). The outside of the ratchet wheel (13) is rotatably connected to the inner wall of the bottom end of the adapter plate (12). A ratchet pawl (14) is rotatably connected inside the adapter plate (12). The external teeth of the ratchet wheel (13) are in contact with the outside of the ratchet pawl (14). An optoelectronic detector body (15) is fixedly connected to the top of the ratchet wheel (13).

3. The ultra-small high-directivity photodetector according to claim 1, characterized in that: The external teeth of the first toothed plate (7) are in meshing connection with the external teeth on one side of the toothed ring (9). The external teeth of the second toothed plate (8) are in meshing connection with the external teeth on the other side of the toothed ring (9). The outside of the handle (5) is in contact with the front side outside of the bracket (2). The outside of the limiting plate (6) is in contact with the rear side outside of the bracket (2).

4. The ultra-small high-directivity photodetector according to claim 2, wherein: A connection hole (29) is opened at the bottom of the adapter plate (12). A fixing bolt (10) is detachably connected to the inside of the toothed ring (9). The outside of the fixing bolt (10) is slidably connected to the inside of the connection hole (29). A nut (11) is threadedly connected to the outside of the fixing bolt (10).

5. The ultra-small highly directional photodetector according to claim 2, characterized in that: An interface (16) is opened on the front side of the optoelectronic detector body (15). A guiding ring (17) is fixedly connected to the inside of the interface (16). A connector (18) is detachably connected to the inside of the guiding ring (17). A connecting wire (19) is fixedly connected to the outside of the connector (18). Two limiting blocks (20) are fixedly connected to the outside of the connector (18). Chute grooves (21) are opened on both the upper and lower sides inside the guiding ring (17). An annular groove (22) is opened inside the guiding ring (17).

6. The ultra-small highly directional photodetector according to claim 5, wherein: The outside of the limiting block (20) is slidably connected to the inner wall of the chute groove (21). The outside of the limiting block (20) is rotatably connected to the inner wall of the annular groove (22). A plurality of mounting grooves (30) are opened inside the base (1).

7. The ultra-small highly directional photodetector according to claim 5, characterized in that: The anti-disengagement assembly includes two cavities (23). The two cavities (23) are respectively opened inside the left and right sides of the guiding ring (17). A clamping post (24) is slidably connected to the inner wall of the cavity (23). One end of the clamping post (24) is rotatably connected to an adjusting rotating plate (25). The other end of the clamping post (24) is fixedly connected to a clamping block (26). A spring (27) is sleeved on the outside of the clamping post (24).

8. A super-small high-directivity photodetector according to claim 7, characterized in that: One end of the spring (27) is fixedly connected to the inner wall of the cavity (23), and the other end of the spring (27) is fixedly connected to the outside of the clamping post (24). Two clamping grooves (28) are formed in the outside of the joint (18), and the outside of the clamping block (26) is engaged with the inner wall of the clamping groove (28).

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