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CN-224216099-U - Optical fiber photoelectric sensor

CN224216099UCN 224216099 UCN224216099 UCN 224216099UCN-224216099-U

Abstract

The utility model discloses an optical fiber photoelectric sensor, which comprises an optical fiber, wherein the lower end of the optical fiber is provided with a shell, the inside of the shell is provided with a light detector, the upper end of the optical fiber is provided with a first laser diode and a fine adjustment mechanism, the fine adjustment mechanism comprises a rectangular frame, a first annular seat, a first adjusting assembly, a second adjusting assembly and a calibration auxiliary assembly, the rectangular frame is positioned outside the first laser diode, the first annular seat is arranged outside the first laser diode, the first adjusting assembly and the second adjusting assembly are respectively arranged between the first annular seat and the rectangular frame, the calibration auxiliary assembly is arranged between the first laser diode and the shell, the optical fiber photoelectric sensor can automatically detect the alignment degree of a light source and a light detector in the device through a detection element, and if the two are not aligned, the fine adjustment mechanism can locally adjust a light source mounting point through a transmission element, so that the light source and the light detector are quickly aligned without the need of disassembling and assembling operation.

Inventors

  • Lian Tian
  • XU LIMING
  • LIAN HU
  • CHEN TIELI
  • ZHAO ZHENXING

Assignees

  • 天隆恒瑞(辽宁)科技有限公司

Dates

Publication Date
20260508
Application Date
20250610

Claims (7)

  1. 1. The optical fiber photoelectric sensor comprises an optical fiber (1), wherein the lower end of the optical fiber (1) is provided with a shell (2), the inside of the shell (2) is provided with a light detector (3), and the upper end of the optical fiber (1) is provided with a first laser diode (4), and is characterized by further comprising a fine adjustment mechanism (6); The fine adjustment mechanism (6) comprises a rectangular frame (61), a first annular seat (62), a first adjusting component (63), a second adjusting component (64) and a calibration auxiliary component (67), wherein the rectangular frame (61) is positioned outside the first laser diode (4), the first annular seat (62) is arranged on the outer side of the first laser diode (4), the first adjusting component (63) and the second adjusting component (64) are respectively arranged between the first annular seat (62) and the rectangular frame (61), and the calibration auxiliary component (67) is arranged between the first laser diode (4) and the shell (2).
  2. 2. The fiber optic photosensor of claim 1 further comprising a control switch (5), the control switch (5) being external to the fiber optic (1), the input of the control switch (5) being electrically connected to an external power source.
  3. 3. The fiber optic photoelectric sensor of claim 1, wherein the first adjusting assembly (63) comprises a dovetail groove (631), a rectangular shell (632), a rectangular slide bar (633) and a first stud (634), the dovetail groove (631) is formed in the front wall of the rectangular frame (61), the rectangular shell (632) is connected inside the dovetail groove (631) in a sliding mode, the rectangular slide bar (633) is connected inside the rectangular shell (632) in a sliding mode, the rear end of the rectangular slide bar (633) is fixedly connected with the outer side of the first annular seat (62), the first stud (634) is connected between the upper wall and the lower wall of the rectangular frame (61) in a rotating mode through a bearing, and the first stud (634) is connected with the front end of the rectangular shell (632) in a threaded mode.
  4. 4. The fiber optic photoelectric sensor of claim 3, wherein the second adjusting assembly (64) comprises a cross through groove (641), a sliding seat (642), a second stud (643) and a threaded cylinder (644), the cross through groove (641) is formed in the rear wall of the rectangular frame (61), the sliding seat (642) is slidably connected to the inside of the cross through groove (641), the second stud (643) is rotatably connected to the middle part of the sliding seat (642) through a second bearing, the threaded cylinder (644) is connected to the front end of the second stud (643) in a threaded manner, and the front end of the threaded cylinder (644) is fixedly connected to the outer side of the first annular seat (62).
  5. 5. The fiber optic photoelectric sensor of claim 4, wherein the fine adjustment mechanism (6) further comprises an adjusting knob (65) and a corrugated tube (66), the adjusting knob (65) is respectively arranged at the upper end of the first stud (634) and the rear end of the second stud (643), the corrugated tube (66) is respectively arranged between the upper wall and the lower wall of the rectangular frame (61) and the adjacent rectangular shell (632) and between the threaded cylinder (644) and the sliding seat (642), and the corrugated tube (66) is respectively movably sleeved at the outer ends of the first stud (634) and the second stud (643).
  6. 6. The fiber optic photoelectric sensor of claim 2, wherein the calibration auxiliary assembly (67) comprises a second annular seat (671), a first rectangular seat (672), a second laser diode (673), a second rectangular seat (674) and a calibration groove (675), the second annular seat (671) is arranged on the outer side of the first laser diode (4), three uniformly distributed first rectangular seats (672) are arranged on the outer side of the second annular seat (671), the second laser diode (673) is arranged in the middle of the first rectangular seat (672), the input end of the second laser diode (673) is electrically connected with the output end of the control switch (5), three uniformly distributed second rectangular seats (674) are arranged on the outer side of the housing (2), the middle of the second rectangular seats (674) is provided with the calibration groove (675), and the second laser diode (673) is mounted in a matched mode with the calibration groove (675).
  7. 7. The optical fiber photoelectric sensor according to claim 1, wherein the lower side of the rectangular frame (61) and the lower side of the housing (2) are respectively provided with a mounting seat (7), and the inside of the mounting seat (7) is respectively provided with a reinforcing rib (8).

Description

Optical fiber photoelectric sensor Technical Field The utility model relates to the technical field of sensors, in particular to an optical fiber photoelectric sensor. Background The optical fiber photoelectric sensor utilizes an optical fiber as a transmission medium and combines a photoelectric conversion technology to realize the sensing of the existence of a long-distance and high-precision object, compared with the traditional photoelectric sensor, the optical fiber photoelectric sensor has smaller volume and finer spot diameter and is suitable for harsher environmental conditions, part of the optical fiber photoelectric sensor comprises a light source, an optical fiber and a light detector, the light source is used for emitting light signals, the optical fiber sensor usually uses a Light Emitting Diode (LED) or a laser diode as the light source, the optical fiber is a medium for transmitting the light signals, the light detector is responsible for receiving and converting the light signals into electric signals, when the light signals reach the light detector, the electric signals can be further processed and analyzed, when the device is used, the light source and the light detector are firstly installed at aligned positions, then the light source emits the light signals, the light detector receives the light signals through self-surface materials and converts the light signals into the electric signals by utilizing photoelectric effects, and the purposes of measurement and detection are realized, however, the device is installed at an initial stage, the light source and the light detector are required to be installed again, the alignment degree of the light detector is required to be installed, if the positions of the light source and the light detector are not level enough to be consistent, and then the worker is required to dismantle the light source and the light detector and then to install the light sensor through a measuring tool again, and the light sensor is required to be further confirmed by the operation. Disclosure of utility model The utility model aims to overcome the existing defects, and provides the optical fiber photoelectric sensor, which can automatically detect the alignment degree of the light source and the light detector mounting positions in the device through the detection element, and if the light source and the light detector mounting positions are not aligned, the light source mounting points can be locally finely adjusted through the transmission element, so that the light source and the light detector are quickly aligned, the secondary dismounting operation is not needed, and the problems in the background technology can be effectively solved. The optical fiber photoelectric sensor comprises an optical fiber, wherein the lower end of the optical fiber is provided with a shell, the inside of the shell is provided with a light detector, the upper end of the optical fiber is provided with a first laser diode, and the optical fiber photoelectric sensor further comprises a fine adjustment mechanism; The device can automatically detect the alignment degree of the light source and the light detector mounting position in the device through the detection element, and if the light source and the light detector are not aligned, the light source mounting point can be locally finely adjusted through the transmission element, so that the light source and the light detector are aligned quickly without the need of disassembly and assembly operation again. Further, the optical fiber comprises a control switch which is positioned outside the optical fiber, the input end of the control switch is electrically connected with an external power supply, so that the control of the electrical elements in the device is facilitated. Further, the first adjusting component comprises a dovetail groove, a rectangular shell, a rectangular sliding rod and a first stud, the dovetail groove is formed in the front wall of the rectangular frame, the rectangular shell is connected to the inside of the dovetail groove in a sliding mode, the rectangular sliding rod is connected to the rear end of the inside of the rectangular shell in a sliding mode, the rear end of the rectangular sliding rod is fixedly connected with the outer side of the first annular seat, the first stud is connected between the upper wall and the lower wall of the rectangular frame through one bearing in a rotating mode, and the first stud is connected with the front end of the rectangular shell in a threaded mode, and local vertical fine adjustment is conducted on a light source mounting point. Further, the second adjusting component comprises a cross through groove, a sliding seat, a second stud and a threaded cylinder, the cross through groove is formed in the rear wall of the rectangular frame, the sliding seat is connected to the inner portion of the cross through groove in a sliding mode, the second stud is connected to the middle p