CN113466163B - High accuracy water quality testing appearance - Google Patents
High accuracy water quality testing appearance Download PDFInfo
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- CN113466163B CN113466163B CN202110875522.6A CN202110875522A CN113466163B CN 113466163 B CN113466163 B CN 113466163B CN 202110875522 A CN202110875522 A CN 202110875522A CN 113466163 B CN113466163 B CN 113466163B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000012372 quality testing Methods 0.000 title claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 17
- 239000010937 tungsten Substances 0.000 claims abstract description 17
- 239000006185 dispersion Substances 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims description 9
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a high-precision water quality detector, which structurally comprises: the invention relates to a lens-based optical fiber laser imaging device, which comprises a machine body, a controller, a sample chamber, a tungsten lamp, a dispersion component and a detector, wherein the tungsten lamp and the dispersion component are arranged on the right side of the sample chamber, the detector is arranged on the left side of the sample chamber, the detector comprises a circuit board, a photoelectric converter, a lens mounting part and a lens, the photoelectric converter is welded on the circuit board, the lens is mounted on the lens mounting part, and the lens mounting part is arranged on the inner wall of the machine body and is positioned at the upper end of the photoelectric converter.
Description
Technical Field
The invention relates to the field of detection equipment, in particular to a high-precision water quality detector.
Background
The ultraviolet spectrophotometer is based on Lambert-beer law, and utilizes the absorption characteristics of substances in the ultraviolet and visible light range to measure the substances, data such as disinfectant indexes, toxicological indexes, general sensory chemical indexes and the like which are commonly used for detecting water quality in water quality detection are divided into two beams by reflection of a tungsten lamp light source by a dispersion component, the two beams pass through liquid in a sample chamber, light is collected and converged on the other side of the sample chamber through a lens and then is transmitted to a photoelectric converter, and a circuit board and a controller are used for reading data;
but when fixing the lens on the lens installed part, generally hold between the fingers the two sides of lens and put into the tubular lens installed part of circle with it, then adopt the spring to push up the lens at the inside end of lens installed part, the opening edge that makes the arc surface of lens and lens installed part is tangent, make the central axis of lens hardly with the axis collineation of lens installed part, thereby lead to the lens to gather and the light beam of play is the slope, hardly aim at photoelectric converter on, and simultaneously, under this reason, adjust the lens and need stir the surface of lens many times again, thereby lead to the mirror surface to stay dirty or wearing and tearing, increase the debugging degree of difficulty for the user.
Disclosure of Invention
Aiming at the problems, the invention provides a high-precision water quality detector.
In order to achieve the purpose, the invention is realized by the following technical scheme: a high accuracy water quality testing appearance, its structure includes: organism, controller, sample room, tungsten lamp, dispersion subassembly, detector constitute, the inside power supply that is equipped with of organism, the controller is established on the organism right side, the left side at the organism is established to the sample room, tungsten lamp and dispersion subassembly are established on the sample room right side, the light beam of tungsten lamp light source is reflected by the dispersion subassembly and is divided into two and passes the sample room, the left side at the sample room is established to the detector, the detector comprises circuit board, photoelectric converter, lens installed part, lens, circuit board horizontal installation is in the organism, the photoelectric converter welding is on the circuit board, the lens is installed on the lens installed part, the lens installed part is established on the organism inner wall and is located the photoelectric converter upper end.
The light beam passing through the tungsten lamp light source is reflected by the dispersion component and divided into two beams which respectively pass through the liquid in the sample chamber, the transmitted light is converged by the lens at the other side of the sample chamber and then transmitted to the photoelectric converter, and the circuit board and the controller read data
Preferably, the structure of the lens mount includes: the lens fixing device comprises a fixing pipe, a connecting ring and a locking ring cover, wherein the main body of the fixing pipe is in a hollow tubular shape, fixing plates are arranged on two sides of the fixing pipe, the connecting ring is arranged at the top end of the fixing pipe, a lens is clamped in the connecting ring, and the locking ring cover is rotationally clamped on the connecting ring.
Preferably, the internal diameter of clamping ring is greater than the internal diameter of fixed pipe, the external diameter of clamping ring is less than the external diameter of fixed pipe, the lens block is on the top of fixed pipe inner wall, the lens parcel is in the inside of clamping ring, the diameter of lens is less than the diameter of clamping ring inner wall.
The diameter of lens slightly is greater than the internal diameter of fixed pipe, makes the lens block up on the opening of fixed pipe, can also reduce the cambered surface of lens bottom simultaneously and the contact surface on fixed pipe top for the arc surface of lens is tangent back with the opening edge of lens installed part, can avoid the lens to slide around its arc surface centre of a circle as far as.
Preferably, the structure of the connecting ring comprises: the utility model discloses a swing joint, receive the piece outward, press piece, spacing apical ring, indicate to hold the movable joint, gu fixed ring main part is cyclic annular, spacing apical ring is that the central angle is 30 circular-arcly, spacing apical ring has six at fixed ring's top regular interval distribution, be equipped with the breach on the fixed ring of spacing apical ring below, the left end of swing joint is connected with fixed ring in fixed ring's breach, receive the outside at the swing joint outward by the piece, spacing apical ring is established in the inboard of swing joint.
Preferably, indicate to hold the movable mouthful for recessed breach, indicate to hold the movable mouthful and establish between two spacing apical rings on solid fixed ring, indicate to hold the movable mouthful and be equipped with two and be the symmetric distribution on solid fixed ring.
Utilize two symmetrical to hold the movable mouthful, reserve the activity space of taking, adjusting the lens for the clamping ring both sides, can place, take out and adjust the lens through the both sides edge that the lens was held between the fingers, the finger then can be in the activity of holding movable mouthful department, when guaranteeing to settle the lens in the clamping ring, can also not harm the surface of lens.
Preferably, the inner wall of the locking ring cover is provided with: the inner top lug is provided with six parts corresponding to the outer receiving block, and the sum of the thickness of the inner top lug and the thickness of the outer receiving block is larger than the difference of the radius between the outer wall of the connecting ring and the inner wall of the locking ring cover.
The inner top lug of the locking ring cover is aligned with the gap between the limiting top rings on the connecting ring, the locking ring cover is inserted into the connecting ring, and the locking ring cover is rotated to enable the inner top lug to be abutted against the outer receiving block, so that the six surrounding swinging joints are driven to swing towards the circle center, and the six inner pressing blocks are simultaneously pushed to the side face of the lens.
Preferably, the top end of the inner pressing block protrudes towards the center of the circle of the connecting ring, the middle lower part of the inner pressing block abuts against the side face of the lens, and the protruding end of the top of the inner pressing block abuts against the edge of the top face of the lens.
Through the protruding end at interior briquetting top for interior briquetting can also keep the lens surface at the coplanar under the pressure of protruding end when fixed with the lens centering, thereby restricts the axis of lens on the central axis of fixed pipe, reduces the degree of difficulty of debugging and installation.
Advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the lens is arranged on the outer side of the opening of the fixed tube and is wrapped in the opening of the fixed tube by the connecting ring, when the locking ring cover and the connecting ring are locked, the six inner pressing blocks simultaneously push against the side surface of the lens, so that the lens is centered and fixed by the inner pressing blocks, and meanwhile, the surface of the lens can be pressed downwards by the convex end at the top of the inner pressing block, so that the axis of the lens is limited on the central axis of the fixed tube, and the difficulty in debugging and installation is reduced.
2. The lens taking and adjusting device has the advantages that the two symmetrical holding openings are utilized, moving spaces for taking and adjusting lenses are reserved on the two sides of the connecting ring, the lenses can be placed, taken out and adjusted by pinching the edges of the two sides of the lenses with fingers, the fingers can move at the holding openings, the lenses can be placed in the connecting ring, and meanwhile, the central surfaces of the lenses cannot be damaged.
3. The diameter of the lens is slightly larger than the inner diameter of the fixing pipe, so that the lens can be blocked on the opening of the fixing pipe, and meanwhile, the contact surface between the arc surface at the bottom of the lens and the top end of the fixing pipe can be reduced, and the lens can be prevented from sliding around the circle center of the arc surface after the arc surface of the lens is tangent to the edge of the opening of the lens mounting piece as far as possible.
Drawings
Fig. 1 is a schematic view of the appearance structure of the present invention.
FIG. 2 is a block diagram of the component progression of the present invention.
FIG. 3 is a schematic diagram of the front structure of the detector of the present invention.
Fig. 4 is a schematic three-dimensional structure of the detector of the present invention.
Fig. 5 is a schematic view of a cross-sectional top view of the detector of the present invention.
Fig. 6 is a schematic three-dimensional structure of the connecting ring of the present invention.
Fig. 7 is a front sectional structure schematic diagram of the detector of the present invention.
FIG. 8 is a partially enlarged schematic view of an inner compact according to the present invention.
In the figure: the device comprises a machine body-1, a controller-2, a sample chamber-3, a tungsten lamp-4, a dispersion component-5, a detector-6, a circuit board-61, a photoelectric converter-62, a lens mounting piece-63, a lens-64, a fixed tube-A, a connecting ring-B, a locking ring cover-C, a fixed ring-B1, a swing joint-B2, an outer receiving block-B3, an inner pressing block-B4, a limiting top ring-B5, a finger holding movable opening-B6 and an inner top protruding block-C1.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Examples
As shown in fig. 1 to 3, the present invention provides a high-precision water quality detector, which comprises: organism 1, controller 2, sample room 3, tungsten lamp 4, dispersion subassembly 5, detector 6 constitute, 1 inside power supply that is equipped with of organism, controller 2 establishes on 1 right side of organism, the left side at organism 1 is established to sample room 3, tungsten lamp 4 and dispersion subassembly 5 are established on the sample room 3 right side, the light beam of 4 light sources of tungsten lamp receives dispersion subassembly 5 reflection and is divided into two and passes sample room 3, detector 6 is established in the left side of sample room 3, detector 6 comprises circuit board 61, photoelectric converter 62, lens installed part 63, lens 64, circuit board 61 horizontal installation is in organism 1, photoelectric converter 62 welds on circuit board 61, lens 64 is installed on lens installed part 63, lens installed part 63 establishes on organism 1 inner wall and is located photoelectric converter 62 upper end.
Referring to fig. 1-3, the light beam passing through the light source of the tungsten lamp 4 is reflected by the dispersion component 5 and divided into two beams, which pass through the liquid in the sample chamber 3, and the transmitted light is collected by the lens 64 and transmitted to the photoelectric converter 62 on the other side of the sample chamber 3, and the circuit board 61 and the controller 2 read the data.
As shown in fig. 4, the structure of the lens mount 63 includes: fixed pipe A, clamping ring B, locking ring lid C, fixed pipe A's main part is hollow tubulose, fixed pipe A both sides are equipped with the stationary blade, clamping ring B establishes on fixed pipe A's top, lens 64 block is in clamping ring B, the rotatory block of locking ring lid C is on clamping ring B.
As shown in fig. 5, the inner diameter of the connection ring B is greater than the inner diameter of the fixing tube a, the outer diameter of the connection ring B is smaller than the outer diameter of the fixing tube a, the lens 64 is clamped on the top end of the inner wall of the fixing tube a, the lens 64 is wrapped inside the connection ring B, and the diameter of the lens 64 is smaller than the diameter of the inner wall of the connection ring B.
Referring to fig. 4 and 5, the diameter of the lens 64 is slightly larger than the inner diameter of the fixing tube a, so that the lens 64 can be blocked on the opening of the fixing tube a, and the contact surface between the arc surface of the bottom of the lens 64 and the top end of the fixing tube a can be reduced, and after the arc surface of the lens 64 is tangent to the opening edge of the lens mounting member 63, the lens 64 can be prevented from sliding around the center of the arc surface as much as possible.
As shown in fig. 6, the structure of the connection ring B includes: fixed ring B1, swing festival B2, receive piece B3 outward, interior briquetting B4, spacing apical ring B5, indicate to hold movable mouthful B6, fixed ring B1 main part is cyclic annularly, spacing apical ring B5 is that the central angle is 30 circular-arcly, spacing apical ring B5 has six at fixed ring B1's top regular interval distribution, be equipped with the breach on the fixed ring B1 of spacing apical ring B5 below, swing festival B2's left end is connected with fixed ring B1 in fixed ring B1's breach, receive piece B3 outward and establish the outside at swing festival B2, spacing apical ring B5 is established in swing festival B2's inboard.
As shown in fig. 6, the finger-holding opening B6 is a concave notch, the finger-holding opening B6 is provided between two limit top rings B5 on the fixing ring B1, and the finger-holding opening B6 is provided with two and is symmetrically distributed on the fixing ring B1.
Referring to fig. 6, two symmetrical holding openings B6 are used to leave a space for holding and adjusting the lens 64 on two sides of the connecting ring B, the lens 64 can be held, taken out and adjusted by holding the edges of two sides of the lens 64 with fingers, and the fingers can move at the holding opening B6, so that the lens 64 can be placed in the connecting ring B without damaging the surface of the lens 64.
As shown in fig. 5, 7 and 8, the inner wall of the locking ring cover C is provided with: the inner top bump C1 is provided with six inner top bumps corresponding to the outer receiving block B3, and the sum of the thickness of the inner top bump C1 and the thickness of the outer receiving block B3 is larger than the difference of the radiuses between the outer wall of the connecting ring B and the inner wall of the locking ring cover C.
Referring to fig. 5, 7 and 8, an inner top convex block C1 of the locking ring cover C is aligned with a gap between the limiting top rings B5 on the connecting ring B, the locking ring cover C is inserted into the connecting ring B, and the locking ring cover C is rotated to make the inner top convex block C1 abut against the outer receiving block B3, so that the six surrounding swinging joints B2 are driven to swing towards the circle center, and the six inner pressing blocks B4 simultaneously abut against the side surface of the lens 64.
As shown in fig. 8, the top end of the inner pressing block B4 protrudes toward the center of the circle of the connecting ring B, the middle-lower portion of the inner pressing block B4 abuts against the side surface of the lens 64, and the protruding end of the top of the inner pressing block B4 abuts against the edge of the top surface of the lens 64.
Referring to fig. 8, the convex end at the top of the inner pressing block B4 enables the inner pressing block B4 to keep the surface of the lens 64 on the same plane under the pressure of the convex end while centering and fixing the lens 64, so that the axis of the lens 64 is limited on the central axis of the fixing tube a, and the difficulty of debugging and installation is reduced.
The working principle of the present invention is explained as follows:
the equipment is installed: the side face of the lens 64 is pinched by fingers, then the fingers are aligned with the fingers to hold the movable opening B6, the lens 64 is placed at the opening of the fixed tube A in the connecting ring B, the diameter of the lens 64 is slightly larger than the inner diameter of the fixed tube A, the lens 64 can be blocked on the opening of the fixed tube A, meanwhile, the contact surface between the arc surface of the bottom of the lens 64 and the top end of the fixed tube A can be reduced, after the arc surface of the lens 64 is tangent to the opening edge of the lens mounting piece 63, the lens 64 can be prevented from sliding around the circle center of the arc surface as much as possible, then, the inner top lug C1 of the locking ring cover C is aligned with the gap between the upper limiting top rings B5 of the connecting ring B, the locking ring cover C is inserted into the connecting ring B, the inner top lug C1 is abutted to the outer receiving block B3 by rotating the locking ring cover C, the six surrounding swinging joints B2 are driven to swing, six inner pressing blocks B4 are simultaneously abutted to the side face of the lens 64, meanwhile, the protruding end of the top of the inner pressing block B4 is abutted to the top face of the lens 64, thereby regulating the surface of the lens 64, the axis of the fixed tube A is limited on the center axis of the fixing tube A, and the difficulty of the installation line is reduced.
When the device is in use: the tungsten lamp 4 is started, the light beam passing through the light source of the tungsten lamp 4 is reflected by the dispersion component 5 and divided into two beams, the two beams respectively pass through the liquid in the sample chamber 3, the transmitted light is collected and transmitted to the photoelectric converter 62 through the lens 64 on the other side of the sample chamber 3, and the circuit board 61 and the controller 2 read data.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A high accuracy water quality testing appearance, its structure includes: organism (1), controller (2), sample room (3), tungsten lamp (4), dispersion subassembly (5), detector (6) constitute, its characterized in that:
a power supply is arranged inside the machine body (1), the controller (2) is arranged on the right side of the machine body (1), the sample chamber (3) is arranged on the left side of the machine body (1), the tungsten lamp (4) and the dispersion component (5) are arranged on the right side of the sample chamber (3), a light beam of a light source of the tungsten lamp (4) is reflected by the dispersion component (5) and is divided into two light beams which pass through the sample chamber (3), and the detector (6) is arranged on the left side of the sample chamber (3);
the detector (6) is composed of a circuit board (61), a photoelectric converter (62), a lens mounting piece (63) and a lens (64), the circuit board (61) is horizontally mounted in the machine body (1), the photoelectric converter (62) is welded on the circuit board (61), the lens (64) is mounted on the lens mounting piece (63), and the lens mounting piece (63) is arranged on the inner wall of the machine body (1) and is positioned at the upper end of the photoelectric converter (62);
the structure of the lens mount (63) includes: the lens fixing device comprises a fixing pipe (A), a connecting ring (B) and a locking ring cover (C), wherein the main body of the fixing pipe (A) is in a hollow tubular shape, fixing sheets are arranged on two sides of the fixing pipe (A), the connecting ring (B) is arranged at the top end of the fixing pipe (A), a lens (64) is clamped in the connecting ring (B), and the locking ring cover (C) is rotationally clamped on the connecting ring (B);
the inner diameter of the connecting ring (B) is larger than that of the fixing tube (A), the outer diameter of the connecting ring (B) is smaller than that of the fixing tube (A), the lens (64) is clamped on the top end of the inner wall of the fixing tube (A), the lens (64) is wrapped inside the connecting ring (B), and the diameter of the lens (64) is smaller than that of the inner wall of the connecting ring (B);
the structure of the connecting ring (B) comprises: the utility model discloses a swing joint, including solid fixed ring (B1), swing festival (B2), outer piece (B3), the interior briquetting (B4), spacing apical ring (B5), indicate to hold movable mouthful (B6), gu fixed ring (B1) main part is cyclic annularly, spacing apical ring (B5) are that the central angle is 30 circular-arcly, spacing apical ring (B5) have six at the top rule interval distribution of solid fixed ring (B1), be equipped with the breach on solid fixed ring (B1) of spacing apical ring (B5) below, the left end of swing festival (B2) is connected with solid fixed ring (B1) in the breach of solid fixed ring (B1), the outside at swing festival (B2) is established in outer piece (B3), the inboard at swing festival (B2) is established in spacing apical ring (B5).
2. The high-precision water quality detector according to claim 1, characterized in that: the finger holds the movable opening (B6) and is concave notch, the finger holds the movable opening (B6) and establishes between two spacing apical rings (B5) on solid fixed ring (B1), the finger holds the movable opening (B6) and is equipped with two and be the symmetric distribution on solid fixed ring (B1).
3. The high-precision water quality detector according to claim 1, characterized in that: the inner wall of the locking ring cover (C) is provided with: the inner top bump (C1) is provided with six positions corresponding to the positions of the outer receiving blocks (B3), and the sum of the thickness of the inner top bump (C1) and the thickness of the outer receiving blocks (B3) is larger than the difference of the radiuses between the outer wall of the connecting ring (B) and the inner wall of the locking ring cover (C).
4. The high-precision water quality detector according to claim 1, characterized in that: the top end of the inner pressing block (B4) protrudes towards the circle center of the connecting ring (B), the middle-lower part of the inner pressing block (B4) abuts against the side face of the lens (64), and the protruding end of the top of the inner pressing block (B4) abuts against the edge of the top face of the lens (64).
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| CN202110875522.6A CN113466163B (en) | 2021-07-30 | 2021-07-30 | High accuracy water quality testing appearance |
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| CN202110875522.6A CN113466163B (en) | 2021-07-30 | 2021-07-30 | High accuracy water quality testing appearance |
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| CN205480359U (en) * | 2016-02-04 | 2016-08-17 | 成都多吉户外用品有限公司 | LED electric torch |
| CN206316537U (en) * | 2016-12-27 | 2017-07-11 | 浙江云景精密设备有限公司 | Laser cutting head |
| CN206627640U (en) * | 2017-03-23 | 2017-11-10 | 宁波永和电子有限公司 | A kind of ceiling mounted infrared inductor |
| CN107748142A (en) * | 2017-09-30 | 2018-03-02 | 南京南瑞集团公司 | A kind of dual-beam based on miniature beam-splitting optical system becomes light path sample spectra analytical equipment |
| CN211052884U (en) * | 2019-11-26 | 2020-07-21 | 上海波刺自动化科技有限公司 | Dustproof lens base and laser processing head |
| CN211345179U (en) * | 2019-12-20 | 2020-08-25 | 浩乐泛(大连)照明制品有限公司 | Lamp mirror with function of protecting vehicle lamp |
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