Wide-spectrum photoelectric detector

Abstract

The invention belongs to the technical field of photoelectric detection, and particularly relates to a wide-spectrum photoelectric detector which comprises a detector body, a support is mounted at the bottom end of the detector body, a photosensitive element is mounted at one end of the detector body, a fixing ring is arranged on the outer side of the photosensitive element, and one end of the fixing ring is fixedly connected with the detector body. A mounting shell is fixed to the end, away from the detector body, of the fixing ring, a cavity is formed in the middle of the interior of the mounting shell, through holes are formed in the two sides of the cavity, a rear lens is fixed to the interior of the through hole, close to the detector body, of the mounting shell, a front lens is arranged in the cavity of the mounting shell, and colored liquid is arranged between the front lens and the rear lens; the distance between the front lens and the rear lens is adjusted by moving the front lens, so that the gap between the front lens and the rear lens can be automatically filled with a corresponding amount of colored liquid due to pressure at the same time, the light inlet amount between the front lens and the rear lens can be controlled in this way, and the photosensitive element is prevented from being damaged due to excessive light received by the photosensitive element.

Description

Technical Field

[0001] The invention belongs to the technical field of photoelectric detection, in particular to a wide-spectrum photoelectric detector. Background Art

[0002] A wide-spectrum photodetector is a device that can convert light radiation over a wide range of wavelengths into electrical quantity. It is widely used in many scientific research and industrial technology fields, such as life sciences, image sensing, optical communications, and environmental monitoring.

[0003] A Chinese patent with the existing announcement number CN209387134U discloses a wide-spectrum photoelectric detector, including a photosensitive detection head, a TEC, an Amp and a signal output device. The photosensitive detection head includes a Si photosensitive semiconductor and a PbSe photosensitive semiconductor with a common optical axis. The Amp includes two, and the two Amps are respectively connected to the Si photosensitive semiconductor and the PbSe photosensitive semiconductor. The two Amps are both connected to the control power supply signal, and the signal output device is respectively connected to the two Amp; the TEC is respectively connected to the control power supply, the Si photosensitive semiconductor and the PbSe photosensitive semiconductor. The wide-spectrum photoelectric detector uses dual-channel detection, and the wavelength range of the detected light is wider; the wide-spectrum photoelectric detector has a simple structure, good functionality, and good economy and practicality.

[0004] During use of the above-mentioned technical solution, the detector needs to be placed in different positions for measurement. However, the brightness of light to be measured at different positions is different, so the amount of light entering the detector will also change. When the amount of light entering is too large, it may cause detector saturation, produce nonlinear output, or even damage the detector. At the same time, the light waves to be detected in different environments are also different, so different detectors need to be used, which has high cost requirements.

[0005] To this end, the present invention provides a wide spectrum photodetector. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a wide-spectrum photoelectric detector described in the present invention includes a detector body, a bracket is installed at the bottom end of the detector body, a photosensitive element is installed at one end of the detector body, a fixing ring is arranged on the outer side of the photosensitive element, one end of the fixing ring is fixedly connected to the detector body, a mounting shell is fixed at the end of the fixing ring away from the detector body, a cavity is opened in the middle part of the mounting shell, through holes are opened on both sides of the cavity, a rear lens is fixed inside the through hole of the mounting shell close to the detector body, a front lens is arranged inside the cavity of the mounting shell, and a colored liquid is arranged between the front lens and the rear lens; three liquid storage boxes are arranged at the top of the detector body, an active cavity is opened at the top of the mounting shell, a slider is arranged inside the active cavity, three liquid inlet heads are fixed at the top of the slider, a liquid guide tube is fixed at one end of the liquid storage box, and the other end of the liquid guide tube is connected to the liquid inlet head of the slider.

[0008] Preferably, a support ring is fixed to the outside of the front lens, a plurality of movable plates are fixed at equal intervals on the outside of the support ring, a plurality of slide grooves are opened at equal intervals on the inside of the mounting shell cavity, and the movable plates can slide inside the slide grooves.

[0009] Preferably, a first airbag is provided inside the slide, one side of the first airbag is fixedly connected to the movable plate, the other side of the first airbag is fixedly connected to the inner side of the slide, a second airbag is fixedly connected to the side of the movable plate away from the first airbag, the side of the second airbag away from the movable plate is fixedly connected to the inner side of the slide, two air pipes are fixedly provided on the side of the bottom end of the first airbag away from the movable plate, and the other end of the air pipes is connected to the bottom end of the second airbag.

[0010] Preferably, the interior of the slide groove is rotatably connected with a threaded rod, and the exterior of the threaded rod is threadedly connected to the movable plate.

[0011] Preferably, a transmission gear is fixed to one end of the threaded rod away from the movable plate, a transmission gear ring is provided on the outer sleeve of the transmission gear, the teeth on the inner side of the transmission gear ring are meshed and connected with multiple transmission gears, a motor is installed on the top of the fixed ring, an output gear is fixed to the end of the motor shaft, and the output gear is meshed and connected with the inner side of the transmission gear ring.

[0012] Preferably, an infusion hole is provided inside the slider, the infusion hole is connected to the inside of the liquid inlet head, a liquid inlet hole is provided at the bottom end of the middle of the active cavity, and the other end of the liquid inlet hole is connected to the cavity of the mounting shell.

[0013] Preferably, a sliding plate is slidably connected to the interior of the liquid storage box, a ventilation hole is provided on a side of the liquid storage box away from the liquid guiding tube, and the colored liquid is arranged on a side of the sliding plate away from the ventilation hole.

[0014] Preferably, a sliding rod is fixed to one end of the slider away from the detector body, a guide hole is opened at one end of the movable cavity close to the sliding rod, the sliding rod passes through the inside of the guide hole, and the slider forms a sliding structure inside the movable cavity.

[0015] Preferably, a connecting ring is fixed to the bottom end of the infusion hole, a first spring is fixed to the bottom end of the connecting ring, a first steel ball is fixed to the bottom end of the first spring, the bottom end of the first steel ball extends into the interior of the inlet hole, a through hole is opened in the middle of the connecting ring, and the first steel ball can be engaged in the through hole of the connecting ring.

[0016] Preferably, placement grooves are provided above and below the slide rod, a second steel ball is fixed inside the placement groove, the other end of the second steel ball is fixedly connected to the second spring, three groups of fixing grooves are provided inside the guide hole, and the second spring can be engaged and connected with the fixing grooves.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The wide-spectrum photoelectric detector described in the present invention can adjust the distance between the front lens and the rear lens by moving the front lens, so that the gap between the front lens and the rear lens can be automatically filled with a corresponding amount of colored liquid due to pressure. In this way, the amount of light entering between the front lens and the rear lens can be controlled, thereby adjusting the amount of light that can be received by the photosensitive element to prevent the photosensitive element from receiving too much light and causing damage.

[0019] 2. The wide-spectrum photoelectric detector described in the present invention is provided with three liquid storage boxes, each of which is filled with colored liquids of different colors. The corresponding colors can be switched by moving a slider. When in use, the colored solution of the corresponding color can be switched according to environmental requirements. There is no need to use multiple detectors, thus saving the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is a schematic diagram of the main structure of the detector of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the installation shell in the present invention;

[0024] Figure 4 It is a schematic diagram of the external structure of the installation shell in the present invention;

[0025] Figure 5 is a schematic diagram of the support ring structure in the present invention;

[0026] Figure 6It is a schematic diagram of the internal structure of the active cavity in the present invention;

[0027] Figure 7 is a schematic diagram of the structure of the first airbag in the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the slider in the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the first steel ball in the present invention;

[0030] Fig.10 It is a schematic diagram of the internal structure of the liquid storage box in the present invention.

[0031] In the figure: 1. detector body; 11. photosensitive element; 12. fixing ring; 2. bracket; 3. mounting shell; 31. front lens; 311. support ring; 312. movable plate; 313. transmission gear; 314. threaded rod; 32. movable cavity; 321. guide hole; 322. fixing groove; 323. slide groove; 324. liquid inlet hole; 33. rear lens; 34. motor; 341. transmission gear ring; 35. first air bag; 351. air delivery pipe; 352. second air bag; 4. liquid storage box; 41. liquid guide pipe; 42. slider; 421. infusion hole; 422. connecting ring; 423. first spring; 424. first steel ball; 43. slide rod; 431. second spring; 432. second steel ball; 44. sliding plate; 441. air vent. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figures 1 to 6 As shown, a wide spectrum photoelectric detector described in an embodiment of the present invention comprises a detector body 1, a bracket 2 is installed at the bottom end of the detector body 1, a photosensitive element 11 is installed at one end of the detector body 1, a fixing ring 12 is arranged on the outer side of the photosensitive element 11, one end of the fixing ring 12 is fixedly connected to the detector body 1, a mounting shell 3 is fixed to the end of the fixing ring 12 away from the detector body 1, a cavity is opened in the middle of the mounting shell 3, through holes are opened on both sides of the cavity, a rear lens 33 is fixed inside the through hole of the mounting shell 3 close to the detector body 1, a front lens 31 is arranged inside the cavity of the mounting shell 3, and a colored liquid is arranged between the front lens 31 and the rear lens 33; three liquid storage boxes 4 are arranged at the top of the detector body 1, an active cavity 32 is opened at the top of the mounting shell 3, a slider 42 is arranged inside the active cavity 32, three liquid inlet heads are fixed to the top of the slider 42, a liquid guide tube 41 is fixed to one end of the liquid storage box 4, and the other end of the liquid guide tube 41 is connected to the liquid inlet head of the slider 42;

[0034] When the wide-spectrum photoelectric detector is in use, it needs to be placed at the location of use, and then the detector body 1 is installed at the location of use through the bracket 2. After installation, the detector body 1 is connected to the control device using a connecting wire. After connection, the detector body 1 is powered on. At this time, the detector body 1 can detect light through the photosensitive element 11. At this time, the photosensitive element 11 pre-detects the ambient light, and then adjusts according to the detected ambient brightness. At this time, the front lens 31 is moved, and the gap between the front lens 31 and the rear lens 33 changes during the movement. A colored liquid is poured into the gap between the front lens 31 and the rear lens 33. When the gap between the front lens 31 and the rear lens 33 becomes larger, more colored liquid becomes available, and less light can pass through. At this time, the light received by the photosensitive element 11 can be reduced, and the photosensitive element 11 can be prevented from receiving too much light and being overloaded and damaged. When the gap between the front lens 31 and the rear lens 33 becomes smaller, the colored liquid between them becomes less, and the light passing through the colored liquid becomes more, so that the photosensitive element 11 can receive more light. The amount of light that the photosensitive element 11 can receive can be adjusted by controlling the amount of colored liquid between the front lens 31, thereby preventing the photosensitive element 11 from being damaged during use. During detection, the front lens 31 end receives light, and the light passes through the front lens 31 and the rear lens 33 and the colored liquid between them, and then reaches the inside of the fixing ring 12, and then is detected by the photosensitive element 11, and the detector body 1 transmits the detection result to the control device.

[0035] like Figures 1 to 6 As shown, a support ring 311 is fixed to the outside of the front lens 31, and a plurality of movable plates 312 are fixed to the outside of the support ring 311 at equal intervals. A plurality of slide grooves 323 are opened at equal intervals on the inner side of the cavity of the mounting shell 3, and the movable plates 312 can slide inside the slide grooves 323;

[0036] When the front lens 31 moves, the support ring 311 drives the front lens 31 to move, and at the same time, the support ring 311 slides inside the slide groove 323 through the moving plate 312 to achieve guidance. During the movement, the support ring 311 can extend to the outside of the front lens 31, so that the colored liquid can be isolated in the position between the front lens 31 and the rear lens 33.

[0037] like Figures 1 to 7As shown, a first airbag 35 is arranged inside the chute 323, one side of the first airbag 35 is fixedly connected to the movable plate 312, the other side of the first airbag 35 is fixedly connected to the inner side of the chute 323, a second airbag 352 is fixedly connected to the side of the movable plate 312 away from the first airbag 35, the side of the second airbag 352 away from the movable plate 312 is fixedly connected to the inner side of the chute 323, two air delivery pipes 351 are fixedly arranged on the side of the bottom end of the first airbag 35 away from the movable plate 312, the other end of the air delivery pipe 351 is connected to the bottom end of the second airbag 352;

[0038] When the moving plate 312 slides inside the chute 323, there will be a gap inside the chute 323. At this time, the colored liquid will flow into the chute 323, which may cause the colored liquid to overflow to the outside. In order to prevent this situation, the first airbag 35 and the second airbag 352 are provided. When the moving plate 312 moves inside the chute 323, the first airbag 35 is inflated during this process, and the opening of the chute 323 can be sealed. When the moving plate 312 starts to move, it squeezes the first airbag 35, and the gas inside the first airbag 35 is input into the second airbag 35 through the gas pipe 351. 52, the first airbag 35 begins to shorten, and at the same time, the second airbag 352 is inflated to expand and lengthen. The corrugations at the top and bottom of the first airbag 35 can guide when the first airbag 35 shortens. When the movable plate 312 moves in the opposite direction, it will squeeze the second airbag 352. At this time, the second airbag 352 will input the gas inside it into the first airbag 35 through the air pipe 351, so that the first airbag 35 can be gradually extended, and the first airbag 35 and the second airbag 352 can automatically adjust their lengths as the movable plate 312 moves to seal the opening of the slide groove 323.

[0039] like Figures 1 to 5 As shown, the interior of the slide slot 323 is rotatably connected to a threaded rod 314, and the exterior of the threaded rod 314 is threadedly connected to the moving plate 312;

[0040] When the movable plate 312 needs to drive the support ring 311 to move, the threaded rod 314 is rotated. At this time, the threaded rod 314 drives the movable plate 312 to move inside the slide groove 323, so as to adjust the distance between the front lens 31 and the rear lens 33.

[0041] like Figures 1 to 5 As shown, a transmission gear 313 is fixed to one end of the threaded rod 314 away from the moving plate 312, and a transmission gear ring 341 is sleeved on the outside of the transmission gear 313. The teeth on the inner side of the transmission gear ring 341 are meshed and connected with multiple transmission gears 313. A motor 34 is installed on the top of the fixed ring 12. An output gear is fixed to the end of the rotating shaft of the motor 34. The output gear is meshed and connected with the inner side of the transmission gear ring 341.

[0042] When adjusting the distance between the front lens 31 and the rear lens 33, the motor 34 is started to rotate. At this time, the motor 34 drives the transmission ring 341 to rotate through the gear at the end, and the transmission ring 341 drives multiple transmission gears 313 to rotate at the same time. At this time, the transmission gear 313 can drive the threaded rod 314 to rotate, and the threaded rod 314 drives the movable plate 312 to move inside the slide groove 323, so as to adjust the distance between the front lens 31 and the rear lens 33.

[0043] like Figures 1 to 8 As shown, a liquid infusion hole 421 is provided inside the slider 42, and the liquid infusion hole 421 is connected to the inside of the liquid inlet head. A liquid inlet hole 324 is provided at the bottom end of the middle of the active cavity 32, and the other end of the liquid inlet hole 324 is connected to the cavity of the mounting shell 3;

[0044] In the initial state, the front lens 31 and the rear lens 33 are in a fitted state, at which time the liquid storage box 4, the liquid guide tube 41 and the infusion hole 421 are all filled with colored liquid. When the front lens 31 starts to move, it will move away from the rear lens 33. At this time, a gap will be generated between the front lens 31 and the rear lens 33, and negative pressure will be generated in the gap. At this time, the negative pressure will suck the colored liquid into the infusion hole 421 through the liquid inlet hole 324. At this time, the liquid in the liquid storage box 4 is also input into the infusion hole 421 through the liquid guide tube 41. The sucked liquid will automatically fill the gap between the front lens 31 and the rear lens 33, so that the gap between the front lens 31 and the rear lens 33 can be automatically filled with liquid, and a corresponding amount of colored liquid can be filled according to the amount of light passing through;

[0045] After each use, the front lens 31 moves in the opposite direction. At this time, the front lens 31 moves towards the direction close to the rear lens 33, and the gap between the front lens 31 and the rear lens 33 gradually shrinks. At this time, the colored liquid in the gap will be squeezed. Due to the pressure, the colored liquid will be squeezed into the inside of the liquid inlet hole 324. At this time, the colored liquid is input into the inside of the infusion hole 421 through the liquid inlet hole 324. The infusion hole 421 can re-input the colored liquid into the inside of the liquid storage box 4 through the liquid guide tube 41, so that the colored liquid inside the liquid storage box 4 can be reused.

[0046] like Fig.10 As shown, a sliding plate 44 is slidably connected to the interior of the liquid storage box 4, a vent hole 441 is provided on the side of the liquid storage box 4 away from the liquid guide tube 41, and the colored liquid is disposed on the side of the sliding plate 44 away from the vent hole 441;

[0047] When the colored liquid in the liquid storage box 4 is extracted, the sliding plate 44 will move with the colored liquid. When the colored liquid is output, air is taken in from the outside through the air vent 441. At this time, the external gas is filled into the liquid storage box 4. When the colored liquid is refilled into the liquid storage box 4, the liquid will push the sliding plate 44 to move. At this time, the sliding plate 44 pushes the air inside the liquid storage box 4 to be discharged to the outside through the air vent 441, thereby automatically adjusting the pressure inside the liquid storage box 4.

[0048] like Figures 1 to 8 As shown, a slide bar 43 is fixed to one end of the slider 42 away from the detector body 1, a guide hole 321 is opened at one end of the active cavity 32 close to the slide bar 43, the slide bar 43 runs through the inside of the guide hole 321, and the slider 42 forms a sliding structure inside the active cavity 32;

[0049] The color of light that needs to be filtered will be different in different scenes. When in use, the color of the required colored liquid needs to be adjusted according to the needs. When adjusting, push the slide bar 43 to slide inside the guide hole 321. At this time, the slide bar 43 can drive the slider 42 to slide inside the active cavity 32. During the sliding process of the slider 42, one of the infusion holes 421 at the bottom can be separated from the liquid inlet hole 324, and then the other infusion hole 421 can be connected to the liquid inlet hole 324, so that colored liquids of different colors can be replaced and input into the gap between the front lens 31 and the rear lens 33.

[0050] like Figures 1 to 9 As shown, a connecting ring 422 is fixed to the bottom end of the infusion hole 421, a first spring 423 is fixed to the bottom end of the connecting ring 422, a first steel ball 424 is fixed to the bottom end of the first spring 423, the bottom end of the first steel ball 424 extends into the inside of the inlet hole 324, a through hole is opened in the middle of the connecting ring 422, and the first steel ball 424 can be engaged in the inside of the through hole of the connecting ring 422;

[0051] When the liquid is outputted from the infusion hole 421, the through hole of the connecting ring 422 and the first steel ball 424 are in a separated state. At this time, the through hole of the connecting ring 422 can output the liquid. When the slider 42 moves, it will drive the first steel ball 424 to move at the same time. The first steel ball 424 located inside the liquid inlet hole 324 is moved away from the inside of the liquid inlet hole 324. During the moving process, the edge of the liquid inlet hole 324 will push the first steel ball 424 to retract into the inside of the infusion hole 421. At this time, the first steel ball 424 moves upward. The movement will push into the through hole inside the connecting ring 422. At this time, the inside of the removed infusion hole 421 is sealed by the connecting ring 422 and the first steel ball 424, and at the same time, the other infusion holes 421 will move to align with the position of the liquid inlet hole 324. At the same time, the first spring 423 inside it pushes the first steel ball 424 to move out of the through hole of the connecting ring 422 and extend into the inside of the liquid inlet hole 324, so that the inside of the current infusion hole 421 can be opened. After multiple uses, the liquid storage box 4 can be replaced to prevent color mixing inside after use.

[0052] like Figures 1 to 8 As shown, placement grooves are provided on and below the slide bar 43, and a second steel ball 432 is fixed inside the placement groove. The other end of the second steel ball 432 is fixedly connected to the second spring 431. Three groups of fixing grooves 322 are provided inside the guide hole 321, and the second spring 431 can be engaged with the fixing groove 322.

[0053] In the initial state, the elastic force of the second spring 431 pushes the second steel ball 432 to be stuck in the inside of the fixed groove 322. When the slide bar 43 is pushed to move, the edge of the fixed groove 322 pushes the second steel ball 432 into the inside of the placement groove of the slide bar 43. Then, when the slide bar 43 moves to the next position, after moving to the position, the second spring 431 pushes the second steel ball 432 to be stuck in the inside of the fixed groove 322 at the current position. At this time, the slide bar 43 can be fixed at the current position, and the slide bar 43 can fix the slider 42.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wide spectrum photoelectric detector, characterized in that: The detector comprises a detector body (1), a bracket (2) is installed at the bottom end of the detector body (1), a photosensitive element (11) is installed at one end of the detector body (1), a fixing ring (12) is arranged on the outside of the photosensitive element (11), one end of the fixing ring (12) is fixedly connected to the detector body (1), an end of the fixing ring (12) is fixedly connected to the detector body (1), an end of the fixing ring (12) away from the detector body (1) is fixed with a mounting shell (3), a cavity is provided in the middle of the mounting shell (3), through holes are provided on both sides of the cavity, a rear lens (33) is fixed inside the through hole of the mounting shell (3) close to the detector body (1), a front lens (31) is arranged inside the cavity of the mounting shell (3), and a colored liquid is provided between the front lens (31) and the rear lens (33); Three liquid storage boxes (4) are arranged at the top of the detector body (1); a movable cavity (32) is opened at the top of the mounting shell (3); a slider (42) is arranged inside the movable cavity (32); three liquid inlet heads are fixed to the top of the slider (42); a liquid guide tube (41) is fixed to one end of the liquid storage box (4); and the other end of the liquid guide tube (41) is connected to the liquid inlet head of the slider (42).

2. A wide spectrum photoelectric detector according to claim 1, characterized in that: A support ring (311) is fixed to the outside of the front lens (31), a plurality of movable plates (312) are fixed at equal intervals on the outside of the support ring (311), a plurality of slide grooves (323) are provided at equal intervals on the inside of the cavity of the mounting shell (3), and the movable plates (312) can slide inside the slide grooves (323).

3. A wide spectrum photoelectric detector according to claim 2, characterized in that: A first airbag (35) is arranged inside the slide groove (323), one side of the first airbag (35) is fixedly connected to the movable plate (312), the other side of the first airbag (35) is fixedly connected to the inner side of the slide groove (323), a second airbag (352) is fixedly connected to the side of the movable plate (312) away from the first airbag (35), the side of the second airbag (352) away from the movable plate (312) is fixedly connected to the inner side of the slide groove (323), two air delivery pipes (351) are fixedly connected to the side of the bottom end of the first airbag (35) away from the movable plate (312), the other end of the air delivery pipe (351) is connected to the bottom end of the second airbag (352).

4. A wide spectrum photoelectric detector according to claim 2, characterized in that: The interior of the slide groove (323) is rotatably connected to a threaded rod (314), and the exterior of the threaded rod (314) is threadably connected to the movable plate (312).

5. A wide spectrum photoelectric detector according to claim 4, characterized in that: A transmission gear (313) is fixed to one end of the threaded rod (314) away from the movable plate (312); a transmission gear ring (341) is sleeved on the outside of the transmission gear (313); teeth on the inner side of the transmission gear ring (341) are meshed and connected with a plurality of transmission gears (313); a motor (34) is mounted on the top end of the fixed ring (12); an output gear is fixed to the end of the rotating shaft of the motor (34); and the output gear is meshed and connected with the inner side of the transmission gear ring (341).

6. The wide spectrum photoelectric detector according to claim 1, characterized in that: A liquid infusion hole (421) is provided inside the slider (42), the liquid infusion hole (421) is connected to the inside of the liquid inlet head, a liquid inlet hole (324) is provided at the bottom end of the middle of the movable cavity (32), and the other end of the liquid inlet hole (324) is connected to the cavity of the mounting shell (3).

7. A wide spectrum photoelectric detector according to claim 6, characterized in that: A sliding plate (44) is slidably connected to the interior of the liquid storage box (4); a ventilation hole (441) is provided on a side of the liquid storage box (4) away from the liquid guide tube (41); and the colored liquid is disposed on a side of the sliding plate (44) away from the ventilation hole (441).

8. The wide spectrum photoelectric detector according to claim 6, characterized in that: A slide rod (43) is fixed to one end of the slider (42) away from the detector body (1); a guide hole (321) is provided at one end of the movable cavity (32) close to the slide rod (43); the slide rod (43) passes through the inside of the guide hole (321); and the slider (42) forms a sliding structure inside the movable cavity (32).

9. The wide spectrum photoelectric detector according to claim 6, characterized in that: A connecting ring (422) is fixed to the bottom end of the infusion hole (421), a first spring (423) is fixed to the bottom end of the connecting ring (422), a first steel ball (424) is fixed to the bottom end of the first spring (423), the bottom end of the first steel ball (424) extends into the interior of the infusion hole (324), a through hole is provided in the middle of the connecting ring (422), and the first steel ball (424) can be engaged in the interior of the through hole of the connecting ring (422).

10. The wide spectrum photoelectric detector according to claim 8, characterized in that: A placement groove is provided above and below the slide bar (43), a second steel ball (432) is fixed inside the placement groove, the other end of the second steel ball (432) is fixedly connected to the second spring (431), three groups of fixing grooves (322) are provided inside the guide hole (321), and the second spring (431) can be engaged and connected with the fixing groove (322).

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