Angle adjusting support and photoelectric sensing device
Through the combined structure of rotating the sphere and curved groove, the inconvenience of the sensor bracket in adjusting the angle and position is solved, and the precise adjustment and stable detection of the sensor is realized, which is suitable for high stability detection of glass production lines.
Patent Information
- Application Number
- CN202422168397.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The existing sensor brackets are inconvenient when adjusting the sensor angle and position, and the spring adjustment method causes the elasticity to weaken after long-term use, affecting detection stability, especially on glass production lines.
The combined structure of the rotating sphere and the curved groove is adopted, and the spring adjustment is replaced by spherical adjustment. The support frame and the rotating frame are spaced, and the angle is adjusted by fasteners to achieve accurate adjustment and fixation of the sensor.
It improves the accuracy and detection stability of sensor angle adjustment, avoids the decrease in stability caused by weakening spring elasticity, and is suitable for accurate detection of glass production lines.
Smart Images
Figure CN223192360U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of brackets, in particular to an angle adjustment bracket and a photoelectric sensing device. Background Art
[0002] With the development of technology, although there are a large number and variety of sensor angle adjustment brackets, there are still certain problems with the existing angle adjustment brackets, which bring certain inconveniences to the use of angle adjustment brackets. However, during the use of most sensor brackets, it is generally inconvenient to adjust the length and angle of the sensor bracket, and it is not easy to correct the position of the sensor, which affects the use and greatly limits the scope of use of the angle adjustment bracket. Therefore, there is an urgent need for a technology that can improve the structure of the angle adjustment bracket to improve such equipment. Currently, the design of the opposed sensor adjustment bracket mainly used in the glass production industry is simple, and the adjustment method is mostly spring adjustment, with problems such as low adjustment accuracy. Moreover, due to the spring being in a compressed state for a long time during use, after long-term use of the existing sensor adjustment bracket, problems such as weakened spring elasticity are likely to occur, resulting in the disadvantage of decreased stability of sensor detection and seriously affecting the stability of production. Content of the Utility Model
[0003] Based on this, it is necessary to provide an angle adjustment bracket and a photoelectric sensing device, which are easy to adjust and can improve the accuracy of sensor angle adjustment.
[0004] The present application provides an angle adjustment bracket, including a support frame, a rotating sphere, and a rotating frame. The support frame and the rotating frame are arranged at intervals and fixed to the rotating frame through a first fastener. One of the rotating frame and the support frame is fixed to the rotating sphere, and the other is provided with a curved surface groove that matches the spherical surface of the rotating sphere. The rotating sphere abuts against the curved surface groove, and the rotating frame is used to fix the sensor.
[0005] In the angle adjustment bracket provided by the present application, the rotating sphere is arranged on the rotating frame, and the rotating sphere can abut against the curved surface groove of the support frame that matches the spherical surface of the rotating sphere. Thus, the adjustment method through the spherical surface is used to replace the spring adjustment method. The sensor can be fixedly arranged on the rotating frame, which can avoid the disadvantage that the spring elasticity weakens and affects the decrease of sensor detection stability when the angle adjustment bracket is in a compressed state for a long time. The angle adjustment bracket provided by the present application is easy to adjust, can improve the accuracy of sensor angle adjustment, and thus improve the stability of sensor detection.
[0006] In one embodiment, the rotating sphere is fixed to the rotating frame, and the curved surface groove is opened on the support frame.
[0007] In one embodiment, a through hole is formed at the bottom of the curved surface groove, and the rotating sphere partially passes through the through hole.
[0008] In one embodiment, a plurality of first through holes are formed on the outer periphery of the curved surface groove, and a plurality of second through holes are formed on the support frame or the rotating frame on which the rotating sphere is fixed. The first through holes and the second through holes correspond to each other one by one, and the first fastener is assembled through the first through hole and the second through hole to fix the support frame and the rotating frame.
[0009] In one embodiment, the first fastener includes a rod body portion passing through the first through hole and the second through hole, and the diameters of the first through hole and the second through hole are larger than the radial dimension of the rod body portion.
[0010] In one embodiment, the number of the first fasteners is multiple, and the multiple first fasteners are arranged around the rotating sphere.
[0011] In one embodiment, both the support frame and the rotating frame are in a flat plate structure.
[0012] In one embodiment, it further includes a base and a second fastener. A first elongated hole is formed on the base, and a third through hole is formed on the support frame. The second fastener is assembled through the first elongated hole and the third through hole to fix the support frame and the base.
[0013] In one embodiment, a mounting hole is formed on the rotating frame, and the mounting hole is used for passing through the sensor.
[0014] The present application further provides an optoelectronic sensing device, including an optoelectronic emission sensor, an optoelectronic reception sensor, a fixing frame and an angle adjustment bracket. The angle adjustment bracket is disposed opposite to the fixing frame at an interval. One of the optoelectronic emission sensor and the optoelectronic reception sensor is fixed on the rotating frame of the angle adjustment bracket, and the other is fixed on the fixing frame. The optoelectronic emission sensor and the optoelectronic reception sensor are disposed opposite to each other.
[0015] In the optoelectronic sensing device provided by the present application, the optoelectronic sensing device includes an optoelectronic emission sensor, an optoelectronic reception sensor, a fixing frame and an angle adjustment bracket. The angle adjustment bracket can replace the spring adjustment method by means of spherical adjustment. The optoelectronic emission sensor or the optoelectronic reception sensor can be fixedly disposed on the rotating frame of the angle adjustment bracket, which can avoid the disadvantage that the spring elasticity weakens when the angle adjustment bracket is in a compressed state for a long time, resulting in a decrease in the detection stability of the sensor. The optoelectronic emission sensor and the optoelectronic reception sensor are disposed opposite to each other, which is convenient for adjustment, can improve the accuracy of the sensor angle adjustment, and further improve the detection stability of the sensor. Brief Description of the Drawings
[0016] The following further describes the present utility model in conjunction with the drawings and embodiments, where:
[0017] Figure 1 is a schematic structural view of an angle adjustment bracket provided by an embodiment of the present application;
[0018] Figure 2 is a schematic structural view of the support frame of the angle adjustment bracket provided by an embodiment of the present application;
[0019] Figure 3 is a schematic structural view of the support frame of the angle adjustment bracket provided by an embodiment of the present application;
[0020] Figure 4 is a schematic structural view of the rotating frame of the angle adjustment bracket provided by an embodiment of the present application;
[0021] Figure 5 is a schematic structural view of the rotating frame of the angle adjustment bracket provided by an embodiment of the present application;
[0022] Figure 6 is a schematic structural view of the base of the angle adjustment bracket provided by an embodiment of the present application;
[0023] Figure 7 is a schematic structural view of the base of the angle adjustment bracket provided by an embodiment of the present application;
[0024] Figure 8 is a schematic structural view of the photoelectric sensing device provided by an embodiment of the present application.
[0025] Reference numerals: Angle adjustment bracket 10; Support frame 20; Curved surface groove 21; Through hole 210; First through hole 22; Second through hole 23; Third through hole 24; Rotating sphere 30; Rotating frame 40; Mounting hole 41; First fastener 51; Second fastener 52; Base 60; First strip-shaped hole 61; Photoelectric sensing device 70; Photoelectric emission sensor 71; Photoelectric receiving sensor 72; Fixed frame 73 Detailed Embodiments
[0026] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0029] In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0030] Although there are a large variety and number of sensor angle adjustment brackets, there are still certain problems with existing angle adjustment brackets, which bring certain inconveniences to the use of angle adjustment brackets. However, in the process of using most sensor brackets, it is mostly inconvenient to adjust the length and angle of the sensor bracket, and it is not easy to correct the position of the sensor, which affects the use. This greatly limits the scope of use of the angle adjustment bracket. Therefore, there is an urgent need for a technology that can improve the structure of the angle adjustment bracket to perfect such equipment. Currently, the design of the transmissive sensor adjustment bracket mainly used in the glass production industry is simple, and the adjustment method is mostly spring adjustment, with problems such as low adjustment accuracy. Taking the glass production line as an example, the accurate detection of the glass conveyed in the production line is the basis for the precise control of each action of the production line. Due to the fact that the spring of the existing sensor adjustment bracket is in a compressed state for a long time during use, after long-term use, problems such as weakened spring elasticity are likely to occur, resulting in the disadvantage of decreased detection stability of the sensor, seriously affecting the stability of production.
[0031] ReferenceFigure 1 To solve the above problems, an embodiment of the present application provides an angle adjustment bracket 10, which includes a support frame 20, a rotating sphere 30, and a rotating frame 40. The support frame 20 and the rotating frame 40 are arranged at intervals and are fixed to the rotating frame 40 through a first fastener 51. One of the rotating frame 40 and the support frame 20 is fixed to the rotating sphere 30, and the other is provided with a curved surface groove 21 that matches the spherical surface of the rotating sphere 30. The rotating sphere 30 abuts against the curved surface groove 21, and the rotating frame 40 is used to fix the sensor.
[0032] In this angle adjustment bracket 10, the angle adjustment bracket 10 includes a support frame 20, a rotating sphere 30, and a rotating frame 40. The support frame 20 can play a supporting role. The support frame 20 and the rotating frame 40 are arranged at intervals. In one implementation, the rotating frame 40 is fixed to the rotating sphere 30, and the support frame 20 is provided with a curved surface groove 21 that matches the spherical surface of the rotating sphere 30. The rotating sphere 30 can abut against the curved surface groove 21. Since the rotating frame 40 is fixed to the rotating sphere 30, the angle between the support frame 20 and the rotating frame 40 can be adjusted by loosening or tightening the first fastener 51. The rotating frame 40 can rotate as the rotating sphere 30 rotates, and the angle of the rotating frame 40 changes relative to the support frame 20. Since the rotating frame 40 can fix the sensor, the angular position of the sensor can be adjusted accordingly. The interval arrangement of the support frame 20 and the rotating frame 40 can provide a rotating space for the rotating sphere 30. If the support frame 20 and the rotating frame 40 are not arranged at intervals, it will not be convenient to provide a rotating space for the rotating sphere 30. In another implementation, the support frame 20 is fixed to the rotating sphere 30, and the rotating frame 40 is provided with a curved surface groove 21 that matches the spherical surface of the rotating sphere 30. The rotating sphere 30 can abut against the curved surface groove 21. The angle between the support frame 20 and the rotating frame 40 can be adjusted by loosening or tightening the first fastener 51. The rotating frame 40 can rotate as the rotating sphere 30 rotates, and the angle of the rotating frame 40 changes relative to the support frame 20. Since the sensor is fixed to the rotating frame 40, the rotation of the rotating frame 40 can adjust the angular position of the sensor. Specifically, an installation hole 41 is formed on the rotating frame 40, and the installation hole 41 is used to pass through the sensor. The sensor can be fixed to the rotating frame 40 through a fastener. In some embodiments, the diameter of the installation hole 41 can be set to 15 mm. The structure of the above angle adjustment bracket 10 realizes replacing the spring adjustment method with a spherical adjustment method. By using the abutting rotation between the rotating sphere 30 and the curved surface groove 21, it can avoid the disadvantage that the spring elasticity weakens when the angle adjustment bracket 10 is in a compressed state for a long time, which affects the decrease in the detection stability of the sensor. The angle adjustment bracket 10 provided in the present application is easy to adjust, improves the accuracy of adjusting the angle of the sensor, improves the detection stability of the sensor, and can provide a stable detection signal for production line control. The following embodiments will be introduced based on the above first implementation.
[0033] Refer to Figures 1 to 5 , in some embodiments, both the support frame 20 and the rotating frame 40 are in a flat plate structure. Due to the relatively thin flat plate structure, it is convenient to adjust the positional relationship between the two through fasteners. At the same time, the flat plate structure can save space in space, which is convenient for assembly and carrying. The rotating sphere 30 is fixed on the rotating frame 40. In some embodiments, the rotating sphere 30 can be fixed on the rotating frame 40 through fasteners, and the installation and disassembly of the rotating sphere 30 can be achieved by loosening and tightening the fasteners, which is convenient for operation. In another embodiment, the rotating sphere 30 and the rotating frame 40 can also be set as an integral structure to increase the compactness between the structures of the angle adjustment bracket 10. The curved surface groove 21 is opened on the support frame 20. Opening the curved surface groove 21 on the support frame 20 can facilitate the abutment between the rotating sphere 30 and the support frame 20. The contact method between the curved surface groove 21 and the rotating sphere 30 is surface contact, which can increase the stability of the contact between the two. Specifically, the size of the curved surface groove 21 can be matched with the diameter of the rotating sphere 30, that is, the curvature of the curved surface groove 21 is the same as the spherical surface of the rotating sphere 30, so that when the rotating sphere 30 abuts against the curved surface groove 21, the two are adapted to each other, which can make the sphere fit more closely with the curved surface groove 21, which is beneficial to more accurately adjust the angle of the rotating sphere 30 relative to the support frame 20, so as to improve the adjustment accuracy of the angle adjustment bracket 10, and further improve the stability of the sensor detection. In some embodiments, a through hole 210 is formed at the bottom of the curved surface groove 21, and a part of the rotating sphere 30 passes through the through hole 210. When the rotating sphere 30 passes through the through hole 210 of the support frame 20, the distance between the support frame 20 and the rotating frame 40 can be reduced, which is convenient for the rotating frame 40 to rotate relative to the support frame 20. In some embodiments, the diameter of the through hole 210 can be set to 15 mm. If the interval between the support frame 20 and the rotating frame 40 is too large, it will be difficult for the rotating frame 40 to rotate more greatly, and thus the adjustment range of the angle adjustment bracket 10 will be reduced. Therefore, setting the through hole and allowing a part of the rotating sphere 30 to pass through the through hole 210 is beneficial to increasing the adjustment range of the angle adjustment bracket 10, improving the accuracy of the sensor angle adjustment, and further improving the stability of the sensor detection
[0034] Continue to refer to Figures 1 to 5, a plurality of first through holes 22 are provided on the outer periphery of the curved surface groove 21. By passing fasteners through the first through holes 22, a fixing function can be achieved. In one implementation, the rotating frame 40 is fixed to the rotating sphere 30, and the support frame 20 is provided with a curved surface groove 21 that matches the spherical surface of the rotating sphere 30. A plurality of first through holes 22 are provided on the outer periphery of the curved surface groove 21. A plurality of second through holes 23 are provided on the rotating frame 40 fixed with the rotating sphere 30. The first fastener 51 is assembled through the first through holes 22 and the second through holes 23 to fix the support frame 20 and the rotating frame 40. Specifically, when the first fastener 51 is assembled with the first through hole 22, the rotating sphere 30 can be fixed to the support frame 20. By loosening or tightening the first fastener 51, the angle of the rotating sphere 30 relative to the support frame 20 can be adjusted, and further the position of the rotating frame 40 relative to the support frame 20 can be adjusted to adjust the angle of the sensor. In another implementation, the support frame 20 is fixed to the rotating sphere 30, the rotating frame 40 is provided with a curved surface groove 21 that matches the spherical surface of the rotating sphere 30. A plurality of first through holes 22 are provided on the outer periphery of the curved surface groove 21. A plurality of second through holes 23 are provided on the support frame 20 fixed with the rotating sphere 30. The first fastener 51 is assembled through the first through holes 22 and the second through holes 23 to fix the support frame 20 and the rotating frame 40. Specifically, when the first fastener 51 is assembled with the first through hole 22, and the first through hole 22 is provided on the support frame 20, at this time, by loosening or tightening the first fastener 51, the positional relationship between the support frame 20 and the rotating sphere 30 can be adjusted, and the rotation of the support frame 20 can adjust the angular position of the sensor. In the above two implementations, the second through holes 23 and the first through holes 22 are adapted and correspond to each other, so that the support frame 20 and the rotating frame 40 can be fixed. Specifically, in some embodiments, the first fastener 51 can pass through the first through hole 22 and the second through hole 23, and the first fastener 51 passing through the first through hole 22 and the second through hole 23 simultaneously can fix the support frame 20 and the rotating frame 40. Further, the first fastener 51 includes a rod portion, and the rod portion can pass through the first through hole 22 and the second through hole 23. In some embodiments, the diameters of the first through hole 22 and the second through hole 23 are larger than the radial dimension of the rod portion. For example, the first fastener 51 can be a screw, and both the support frame 20 and the rotating frame 40 are plate-like structures. Because screws are generally straight, if the diameters of the first through hole 22 and the second through hole 23 are exactly the same as the diameter of the screw, then relative inclination between the support frame 20 and the rotating frame 40 cannot be achieved. Generally, only when the diameter of the through hole 210 is larger than the diameter of the screw, can relative inclination between the support frame 20 and the rotating frame 40 be achieved. On the contrary, if the diameter of the through hole 210 is smaller than or equal to the diameter of the screw, the screw will not be able to pass through the through hole 210 of one of the support frame 20 and the rotating frame 40 after relative inclination. Therefore, the diameters of the first through hole 22 and the second through hole 23 being larger than the radial dimension of the rod portion is beneficial to achieving relative inclination between the support frame 20 and the rotating frame 40, and further achieving a better adjustment effect of the angle adjustment bracket 10.In some embodiments, the number of the first fasteners 51 is plural, and the plural first fasteners 51 are arranged around the rotating sphere 30. For example, the number of the first fasteners 51 is set to three, the number of the first through holes 22 is set to three, the number of the second through holes 23 is three, and the rod portions of the three first fasteners 51 can respectively pass through the first through holes 22 and the second through holes 23. At the same time, the diameters of the three first through holes 22 and the diameters of the three second through holes 23 are larger than the radial dimension of the rod portion. The three first fasteners 51 are arranged around the rotating sphere 30, thereby positioning the rotating sphere 30. In some embodiments, the diameters of the first through holes 22 and the second through holes 23 can be 5.2 mm. The plural first fasteners 51 are arranged around the rotating sphere 30, and the positioning adjustment function of the angle adjustment bracket 10 can be better realized by adjusting the tightness of the first fasteners 51 in different first through holes 22 and second through holes 23.
[0035] Refer to Figure 6 and Figure 7 , in some embodiments, the angle adjustment bracket 10 further includes a base 60. The base 60 can play a role in supporting the support frame 20 and the rotating frame 40. The base 60 can be provided with a horizontal contact surface so that the angle adjustment bracket 10 can be horizontally placed on the ground or the operating table. In some embodiments, the center of gravity of the angle adjustment bracket 10 can be lowered by increasing the weight of the base 60, thereby improving the overall stability of the angle adjustment bracket 10. A first strip-shaped hole 61 is formed in the base 60. Specifically, the length of the longer side of the first strip-shaped hole 61 can be set to 10 mm, and the length of the shorter side of the first strip-shaped hole 61 can be set to 5.2 mm. The angle adjustment bracket 10 further includes a second fastener 52. The second fastener 52 can fix the base 60 and the support frame 20 through the first strip-shaped hole 61. In some embodiments, a third through hole 210 is formed in the support frame 20. The second fastener 52 is assembled through the first strip-shaped hole 61 and the third through hole 210 to fix the support frame 20 and the base 60. Compared with the circular hole, the longer side of the strip-shaped hole can provide a section of adjustment distance for the second fastener 52. When in a fixed position, the second fastener 52 can pass through the strip-shaped hole and the third through hole 210, and at the same time, the second fastener 52 can slide in the strip-shaped hole, thereby realizing a certain adjustment distance. When the position of the second fastener 52 is determined, the support frame 20 and the base 60 are fixed by tightening the second fastener 52.
[0036] Refer to Figure 8, the optoelectronic sensing device 70 according to the second aspect embodiment of the present utility model includes an optoelectronic emission sensor 71, an optoelectronic reception sensor 72, a fixing bracket 73, and the angle adjustment bracket 10 of the first aspect embodiment. The optoelectronic emission sensor 71 and the optoelectronic reception sensor 72 are sensors that use light to detect objects. It emits light signals, and then detects the reflection, blocking, or absorption of the light signals by the objects, and then converts these changes into corresponding electrical signals to achieve control. The optoelectronic emission sensor 71 is responsible for emitting light signals. After these light signals are reflected, blocked, or absorbed by the detected object, they are received by the optoelectronic reception sensor 72 and converted into electrical signals, and finally processed by the detection circuit. The angle adjustment bracket 10 and the fixing bracket 73 are arranged opposite to each other at intervals. The optoelectronic emission sensor 71 and the optoelectronic reception sensor 72 are arranged opposite to each other, so that the optoelectronic emission sensor 71 and the optoelectronic reception sensor 72 are at a reasonable distance. In some embodiments, the optoelectronic emission sensor 71 is fixed on the rotating frame 40 of the angle adjustment bracket 10, and the optoelectronic reception sensor 72 is fixed on the fixing bracket 73. In other embodiments, the optoelectronic reception sensor 72 is fixed on the rotating frame 40 of the angle adjustment bracket 10, and the optoelectronic emission sensor 71 is fixed on the fixing bracket 73. The angle adjustment bracket 10 and the fixing bracket 73 have the function of adjusting the position, and the installation height of the sensor can be adjusted through the strip holes and fasteners. The fixing bracket 73 can also adopt the angle adjustment bracket 10, which can avoid the disadvantage that the spring elasticity weakens when the angle adjustment bracket 10 is in a compressed state for a long time, affecting the decrease of the detection stability of the sensor. The optoelectronic emission sensor 71 and the optoelectronic reception sensor 72 are arranged opposite to each other, which is convenient for adjustment, can improve the accuracy of the angle adjustment of the sensor, and further improve the detection stability of the sensor. Since this embodiment adopts all the technical features of the angle adjustment bracket 10 of the first aspect embodiment, this embodiment has all the beneficial effects brought by the first aspect embodiment, which will not be elaborated here.
[0037] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0038] The above embodiments only express several implementation manners of the present utility model, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. An angle adjustment bracket, characterized in that: It includes a support frame, a rotating sphere and a rotating frame. The support frame is spaced apart from the rotating frame and is fixed to the rotating frame by a first fastener. One of the rotating frame and the support frame is fixed to the rotating sphere, and the other is provided with a curved groove matching the spherical surface of the rotating sphere. The rotating sphere abuts on the curved groove. The rotating frame is used to fix the sensor.
2. The angle adjustment bracket according to claim 1, characterized in that: The rotating sphere is fixed on the rotating frame, and the curved groove is opened on the supporting frame.
3. The angle adjustment bracket according to claim 1, characterized in that: A through hole is formed at the bottom of the curved groove, and the rotating sphere partially passes through the through hole.
4. The angle adjustment bracket according to claim 1, characterized in that: A plurality of first through holes are provided on the outer periphery of the curved groove, and a plurality of second through holes are provided on the support frame or the rotating frame to which the rotating sphere is fixed, the first through holes corresponding to the second through holes one by one, and the first fastener is assembled through the first through holes and the second through holes to fix the support frame and the rotating frame.
5. The angle adjustment bracket according to claim 4, characterized in that: The first fastener includes a rod portion passing through the first through hole and the second through hole, and the hole diameters of the first through hole and the second through hole are larger than the radial dimension of the rod portion.
6. The angle adjustment bracket according to claim 1, characterized in that: There are multiple first fasteners, and the multiple first fasteners are arranged around the rotating sphere.
7. The angle adjustment bracket according to claim 1, characterized in that: The support frame and the rotating frame are both flat plate structures.
8. The angle adjustment bracket according to claim 1, characterized in that: It also includes a base and a second fastener, the base is provided with a first strip hole, the support frame is provided with a third through hole, and the second fastener is assembled through the first strip hole and the third through hole to fix the support frame to the base.
9. The angle adjustment bracket according to claim 1, characterized in that: The rotating frame is provided with a mounting hole, and the mounting hole is used for passing the sensor.
10. A photoelectric sensing device, characterized in that: It includes a photoelectric emitting sensor, a photoelectric receiving sensor, a fixing frame and the angle adjustment bracket according to any one of claims 1 to 9, the angle adjustment bracket and the fixing frame are arranged relative to each other, one of the photoelectric emitting sensor and the photoelectric receiving sensor is fixed on the rotating frame of the angle adjustment bracket, the other of the photoelectric emitting sensor and the photoelectric receiving sensor is fixed on the fixing frame, and the photoelectric emitting sensor and the photoelectric receiving sensor are arranged relative to each other.