CN218726607U

CN218726607U - Novel optical water quality sensor

Info

Publication number: CN218726607U
Application number: CN202222856559.7U
Authority: CN
Inventors: 黄明柱; 梅勇; 姚灵; 王欣欣; 邵武杰
Original assignee: Ningbo Water Meter Group Co Ltd
Current assignee: Ningbo Water Meter Group Co Ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-03-24
Anticipated expiration: 2032-10-27

Abstract

The utility model provides a novel optics water quality sensor, which comprises a housin, be equipped with the light source that is used for sending optical signal in the casing and be used for receiving optical signal's optical signal receiver, the lateral wall of casing is equipped with the opening and forms measurement window, measurement window internal slip is furnished with and is used for placing the slip table of waiting to detect liquid, the light source orientation the slip table, the slip direction of slip table is on a parallel with optical signal's direction of transfer, be equipped with in the casing and be used for the drive the slip table slides the drive arrangement in order to realize the optical path and adjust, be equipped with on the slip table and be used for holding the light trap that optical signal passed. The utility model discloses optics water quality sensor adopts optical distance adjustable technique, has reduced staff's burden, has increased the suitability of optics method water quality monitoring instrument.

Description

Novel optical water quality sensor

Technical Field

The utility model relates to a water quality testing device, in particular to novel optics water quality sensor.

Background

The water quality sensor is used for detecting water quality, the optical path of a measuring window of the existing optical water quality sensor is fixed, and the range of measurable water quality parameters can be determined by the size of the optical path according to the Lambert beer law. If the optical path is too large, the measurable parameter range is reduced; the optical path is too small, and although the range of measurable parameters is increased, the test data of the low-concentration solution is inaccurate, so that the universality of the optical water quality sensor is limited, and the workload of workers is increased.

Generally, a beam of light of a light source LED penetrates through liquid, a receiver is arranged at the other end of the liquid and used for receiving optical signals, and the LED and the photoelectric sensor both need a driving circuit, so that the driving circuit boards of the LED and the photoelectric sensor need to be designed independently on the basis of the mechanical structure and the electronic circuit design of the existing sensor, the workload of the electronic circuit design is increased, and the excessive dispersed driving circuits are not beneficial to the stability of the overall performance of the instrument.

SUMMERY OF THE UTILITY MODEL

【1】 Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide a novel optics water quality sensor that quick adjustment, the suitability of optical distance are strong can carry out.

【2】 Technical scheme for solving problems

The utility model provides a novel optics water quality sensor, which comprises a housin 1, be equipped with the light source 31 that is used for sending optical signal in the casing 1 and be used for receiving optical signal's optical signal receiver 32, the lateral wall of casing is equipped with the opening and forms measuring window 10, measuring window 10 internal slipping is furnished with and is used for placing the slip table of treating the liquid of waiting to detect, light source 31 orientation the slip table, the slip direction of slip table is on a parallel with optical signal's direction of transfer, be equipped with in the casing and be used for the drive the slip table slides the drive arrangement who adjusts in order to realize the optical path, be equipped with on the slip table and be used for holding the light trap that optical signal passed.

Further, drive arrangement includes driving motor 21 and sets up the screw rod 23 of driving motor 21 output, the axis of screw rod 23 is on a parallel with the slip direction of slip table and with slip table threaded connection.

Further, the light source 31 and the optical signal receiver 32 are both located at the upper end of the housing, and a reflector group for reflecting the light path of the optical signal by 180 degrees is arranged at the lower end of the housing.

Further, the reflector group includes a first reflector 41 and a second reflector 42, and the optical signal emitted by the light source 31 is reflected by the first reflector 41 and the second reflector 42 in sequence and then fed back to the optical signal receiver 32.

Further, the included angle between the first reflecting mirror 41 and the second reflecting mirror 42 is 90 degrees.

Further, the light source 31 and the optical signal receiver 32 are both two.

Further, the light source 31 is an LED lamp, and the optical signal receiver 32 is a photosensor.

Further, the light source 31 and the optical signal receiver 32 are mounted on the same circuit board 3.

Further, the housing 1 is cylindrical, and the driving device is coaxial with the housing.

Further, still include light hole seat 6, the light hole 60 has been run through at the both ends of light hole seat 6, light source 31, optical signal receiver 32 with all be equipped with on the slip table light hole seat 6.

【3】 Advantageous effects

The optical water quality sensor provided with the sliding table can slide according to specific detection requirements, realizes optical path adjustment, has wide detection application range, high detection precision and good universality, and reduces the workload of workers; the motor and the screw rod are used for driving, so that the driving is stable, the precision is high, and the response is fast; the light source and the receiver are positioned on the same circuit board or the same side, so that the design of an electronic circuit is facilitated, the concentration of a driving circuit is high, and the overall stability and reliability are improved; the utility model discloses optics water quality sensor adopts optical distance adjustable technique, has reduced staff's burden, has increased the suitability of optics method water quality monitoring instrument.

Drawings

Fig. 1 is a schematic structural view of the optical water quality sensor of the present invention;

fig. 2 is a cross-sectional view of the optical water quality sensor of the present invention;

fig. 3 is another angle sectional view of the optical water quality sensor of the present invention;

fig. 4 is a schematic view of the installation of the sliding table of the optical water quality sensor of the present invention;

fig. 5 is another schematic view of an angle structure of the sliding table of the optical water quality sensor of the present invention;

fig. 6 is a schematic view of the installation of the light source of the optical water quality sensor of the present invention;

fig. 7 is a schematic view of the installation of the reflection group of the optical water quality sensor of the present invention;

fig. 8 is a schematic structural view of the unthreaded hole seat of the optical water quality sensor of the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1-8, the utility model provides a novel optics water quality sensor, including casing 1, the shaping has the installation cavity in the casing, be equipped with light source 31 and optical signal receiver 32 in the installation cavity, light source 31 is used for sending optical signal, optical signal receiver 32 is used for receiving optical signal, be equipped with the opening at the lateral wall of casing, this opening forms measuring window 10, sliding table has in measuring window 10, the top surface of this sliding table is used for placing the liquid that awaits measuring, above-mentioned light source 31 (light-emitting direction) is towards the sliding table (the face of placing), and the slip direction of sliding table is on a parallel with optical signal's (light path) direction of transfer, be equipped with the light trap on the sliding table, this light trap is used for holding optical signal and passes; and meanwhile, a driving device is arranged in the shell and used for driving the sliding table to slide so as to realize optical path adjustment.

In the application, the housing 1 is cylindrical, and is convenient to operate and carry, the driving device is coaxial with the housing, specifically, the driving device includes a driving motor 21 and a screw 23 disposed at an output end of the driving motor 21, the driving motor 21 is vertically disposed at an upper end of the installation cavity and is coaxial with the installation cavity (housing), an output shaft of the driving motor 21 is disposed downward, an axis of the screw 23 is parallel to a sliding direction of the sliding table and is in threaded connection with the sliding table, the driving motor drives the screw to rotate, and then the sliding table is driven to move up and down, so that distance adjustment between the light source and the driving device is realized, that is, optical path adjustment is realized; in order to improve the stability, a base 24 is arranged in the shell, fixing rods 25 are arranged at two ends of the base 24, the fixing rods 25 are connected with the inner wall of the shell 1, and the end part of the screw 23 is connected to the base 24 through a bearing; the sliding table comprises a threaded sleeve 22 and a sliding table body 5 fixed on the threaded sleeve 22, the threaded sleeve 22 is integrally cylindrical, internal threads are arranged in the threaded sleeve 22 and are in threaded connection with a screw rod, a connecting portion 221 is arranged on the side wall of the threaded sleeve 22, and the sliding table body 5 is rigidly connected with the connecting portion and can slide.

In order to reduce the design workload of the electronic circuit and avoid that the excessively dispersed driving circuit is not beneficial to the overall performance stability of the instrument, in the embodiment, the light source 31 and the optical signal receiver 32 are both located at the upper end of the housing and are installed on the same circuit board 3, wherein the light source 31 is an LED lamp, and the optical signal receiver 32 is a photoelectric sensor; the circuit board 3 is wholly circular, a central hole is formed in the center of the circuit board 3 and used for allowing a driving motor to penetrate through, and assembly is achieved, the light source 31 and the optical signal receiver 32 are arranged at the lower end of the circuit board 3, an included angle between the light source 31 and the optical signal receiver is 180 degrees, meanwhile, a reflector group is arranged at the lower end of the shell (installation cavity) and used for reflecting the light path of the optical signal for 180 degrees, specifically, the reflector group comprises a first reflector 41 and a second reflector 42, the optical signal sent by the light source 31 is reflected by the first reflector 41 and the second reflector 42 in sequence and then fed back to the optical signal receiver 32, the incident light of the first reflector 41 is parallel to the sliding direction of the sliding table, and the light emitting direction of the second reflector is parallel to the incident light of the first reflector; specifically, a mounting bracket 44 is arranged in the housing, the mounting bracket 44 is integrally of a plate (sheet) -shaped structure, the plane of the mounting bracket 44 is perpendicular to the sliding direction of the sliding table, the mounting bracket 44 is connected with the inner wall of the housing through a support rod 43, the included angle between the first reflector and the sliding direction of the sliding table is 45 degrees, the included angle between the second reflector and the sliding direction of the sliding table is 45 degrees, and meanwhile, the included angle between the first reflector 41 and the second reflector 42 is 90 degrees, so that the reflection of the light path is realized; in order to improve the stability and reliability of the detection, in the present embodiment, the light source 31 and the optical signal receiver 32 are both two.

Simultaneously in order to improve the concentration nature of light, reduce interference, still including unthreaded hole seat 6 in this application, the both ends of unthreaded hole seat 6 run through there is light trap 60, and the quantity of light trap 60 corresponds with light source quantity, all is equipped with this unthreaded hole seat 6 on light source 31, optical signal receiver 32 and slip table, and its assembly of being convenient for improves the light path precision, improves the interference killing feature simultaneously, improves and detects the precision.

The optical water quality sensor provided by the utility model is provided with the sliding table, can slide according to specific detection requirements, realizes optical path adjustment, has wide detection application range, high detection precision and good universality, and reduces the workload of workers; the motor and the screw rod are used for driving, so that the driving is stable, the precision is high, and the response is fast; the light source and the receiver are positioned on the same circuit board or the same side, so that the design of an electronic circuit is facilitated, the concentration of a driving circuit is high, and the overall stability and reliability are improved; the utility model discloses optics water quality sensor adopts optical path adjustable technique, has reduced staff's burden, has increased the suitability of optical method water quality monitoring instrument.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A novel optical water quality sensor is characterized in that: the portable optical signal detection device comprises a housing, be equipped with the light source that is used for sending optical signal in the casing and be used for receiving optical signal's optical signal receiver, the lateral wall of casing is equipped with the opening and forms measuring window, the sliding fit has the slip table that is used for placing the liquid of waiting to detect in the measuring window, the light source orientation the slip table, the slip direction of slip table is on a parallel with optical signal's direction of transfer, be equipped with in the casing and be used for the drive the slip table slides in order to realize the drive arrangement that the optical distance was adjusted, be equipped with on the slip table and be used for holding the light trap that optical signal passed.

2. A novel optical water quality sensor as claimed in claim 1, wherein: the driving device comprises a driving motor and a screw rod arranged at the output end of the driving motor, and the axis of the screw rod is parallel to the sliding direction of the sliding table and is in threaded connection with the sliding table.

3. A novel optical water quality sensor as claimed in claim 1, wherein: the light source and the optical signal receiver are both positioned at the upper end of the shell, and the lower end of the shell is provided with a reflector group for reflecting the light path of the optical signal for 180 degrees.

4. A novel optical water quality sensor as claimed in claim 3, wherein: the reflector group comprises a first reflector and a second reflector, and optical signals sent by the light source are reflected by the first reflector and the second reflector in sequence and then fed back to the optical signal receiver.

5. The novel optical water quality sensor according to claim 4, characterized in that: the included angle between the first reflecting mirror and the second reflecting mirror is 90 degrees.

6. A novel optical water quality sensor as claimed in claim 1, wherein: the optical signal receiver is connected with the light source.

7. A novel optical water quality sensor as claimed in claim 1, wherein: the light source is an LED lamp, and the optical signal receiver is a photoelectric sensor.

8. A novel optical water quality sensor as claimed in claim 1, wherein: the light source and the optical signal receiver are mounted on the same circuit board.

9. A novel optical water quality sensor as claimed in claim 1, wherein: the shell is cylindrical, and the driving device is coaxial with the shell.

10. A novel optical water quality sensor as claimed in claim 1, wherein: still include the unthreaded hole seat, the light trap seat's both ends are run through there is the light trap, the light source optical signal receiver with all be equipped with on the slip table the unthreaded hole seat.