CN217084666U - Water quality detection device - Google Patents

Abstract

The utility model is suitable for the technical field of water quality detection, and discloses a water quality detection device, which comprises a light source generator, a light filter and a detector; the light source generator is used for emitting light, and the filter is equipped with two at least filter holes that supply light to pass through, and every filter hole is equipped with different light filters, and the filter is in order to be used for the motion to switch filter hole so that light can see through different light filters respectively, and the detector sets up relatively with the filter interval and is formed with the space that is used for the holding cell, and the detector is used for receiving the light that passes through light filter and cell in proper order to detect the liquid in the cell. The utility model discloses a water quality testing device passes through the light filter and can switches different light filters to make the detector can analyze the quality of water index that the light irradiation of the different wave bands of light source generator is to the cell.

Description

Water quality detection device

Technical Field

The utility model relates to a water quality testing technical field especially relates to a water quality testing device.

Background

In the prior art, water quality detection can be performed by a spectrophotometry or an ultraviolet fluorescence method, but when continuous detection and analysis of multiple water quality indexes are required, a common spectrophotometry or ultraviolet fluorescence device cannot solve the problem of continuous analysis of the water quality indexes either because the device can only provide light rays in a specific waveband, or needs to be realized by arranging a plurality of light sources in different wavebands, but due to the arrangement of a plurality of light sources, the problems of complex device design, difficult operation, high production and manufacturing cost and the like are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a, it aims at solving the technical problem who carries out continuous analysis to a plurality of quality of water indexes.

In order to achieve the above purpose, the utility model provides a scheme is: the utility model provides a water quality testing device, includes light source generator, filter and detector, the light source generator is used for emission light, the filter is equipped with two at least filter holes that supply light to pass through, every filter hole is equipped with different light filters, the filter switches with being used for the motion filter hole is so that light can see through the difference respectively the light filter, the detector with the filter interval sets up relatively and is formed with the space that is used for the holding cell, the detector is used for receiving and passes through in proper order the light of light filter and cell to detect the liquid in the cell.

Optionally, the water quality detection device further comprises a mounting plate, the filter comprises a rotating wheel arranged on the mounting plate and rotating, and all the filter holes are arranged on the rotating wheel in a circumferential uniform distribution mode by taking a rotating shaft of the rotating wheel as a center.

Optionally, the water quality detection device further comprises a driving mechanism, and the transmission mechanism is used for driving the rotating wheel to rotate so as to switch the light filtering holes; the actuating mechanism includes driving source, belt pulley and belt, the driving source is installed on the mounting panel, the output pivot of driving source with the belt pulley is connected with the axle center, the belt pulley passes through the belt drives it rotates to rotate the wheel.

Optionally, the driving source includes a housing, a mounting platform, and a rotating shaft, the housing is connected to the mounting platform in a protruding manner toward the mounting plate, the mounting platform includes a first end surface far away from the housing and a second end surface opposite to the first end surface, the rotating shaft extends outward from the first end surface and is connected to the belt pulley, the mounting plate is provided with a front end surface and a rear end surface opposite to the front end surface, and the driving source is fixedly connected to the rear end surface through the first end surface; or the driving source is fixedly connected with the front end face through the second end face.

Optionally, characterized in that, water quality testing device still includes the shell, the shell with the mounting panel is connected in order to be used for shielding external veiling glare, be equipped with first clear aperture on the shell, first clear aperture is used for passing through the light of light filter light filtering.

Optionally, the water quality detection device still includes first lens subassembly, first lens subassembly includes first lens and encapsulation board, the shell is equipped with the lens mounting hole, first lens install in the lens mounting hole is in order to be used for assembling the light of following the first through-hole department and penetrating out, the encapsulation board is located first lens with between the detector, the encapsulation board be used for with first lens encapsulate in the lens mounting hole just sees through the light after assembling.

Optionally, the water quality detection device further comprises a second lens assembly, the second lens assembly comprises a second lens and a lens mounting seat, the lens mounting seat is mounted on the mounting plate, and the second lens is arranged on the lens mounting seat and used for converging the light rays of the light source generator.

Optionally, the water quality testing device further comprises a positioner, the positioner is mounted on the mounting plate, the rotating wheel is provided with a positioning origin, and the positioner is used for positioning the positioning origin of the rotating wheel.

Optionally, the locator includes infrared detector and is used for installing infrared detector's detector mount pad, the protruding holding ring that is equipped with of periphery of rotating the wheel, the slotted hole has been seted up to the holding ring, the detector cover is located the holding ring is in order to be used for surveying the position of slotted hole.

Optionally, the light source generator is a pulsed xenon lamp.

The utility model provides a water quality testing device produces light through light source generator, produces the light of different wave bands behind the different light filters in this light passes through the light filter, wherein, is used for switching different light filters after the light filter motion and carries out the filtering to light source generator light, is received by the detector after the different wave bands after the light filter filters see through the cell that is equipped with the quality of water that awaits measuring to detect the index of quality of water.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a water quality detection device provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the water quality detection apparatus provided by the embodiment of the present invention after the casing and the first lens assembly are removed;

FIG. 3 is a top view of a water quality detecting apparatus according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

fig. 5 is an exploded schematic view of a water quality detecting device provided by an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a rotating wheel according to an embodiment of the present invention.

The reference numbers illustrate: 1. a water quality detection device; 10. a light source generator; 20. a filter; 21. a light filtering hole; 22. an optical filter; 23. a rotating wheel; 231. a positioning ring; 2311. a slot; 30. a detector; 40. mounting a plate; 41. a front end face; 42. a rear end face; 50. a drive mechanism; 51. a drive source; 511. a housing; 512. an installation table; 5121. a first end face; 5122. a second end face; 513. a rotating shaft; 52. a belt pulley; 53. a belt; 60. a housing; 61. a first light passing hole; 62. a lens mounting hole; 70. a first lens assembly; 71. a first lens; 72. a package board; 80. a second lens assembly; 81. a second lens; 82. a lens mount; 90. a positioner; 91. an infrared detector; 92. a detector mounting base; 100. a cuvette.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element through intervening elements.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1-6, the embodiment of the utility model provides a water quality testing device 1, including light source generator 10, filter 20 and detector 30, light source generator 10 is used for emission light, filter 20 is equipped with two at least filter holes 21 that supply light to pass through, every filter hole 21 is equipped with different light filter 22, filter 20 is in order to be used for the motion to switch filter hole 21 so that light can see through different light filter 22 respectively, detector 30 and filter 20 interval set up relatively and are formed with the space that is used for holding cell 100, detector 30 is used for receiving the light that passes through light filter 22 and cell 100 in proper order, with the liquid in the detection cell 100. In the specific application, the cuvette 100 containing the sample liquid to be detected is placed in the accommodating space of the detector 30 and the filter 20, different light filters 22 are switched by the filter 20 according to the detection indexes of the sample liquid as required, the light emitted by the light source generator 10 is filtered to obtain different specific wave band light rays, the light rays in the wave band are irradiated through the cuvette 100 and then received by the detector 30, and the detector 30 detects the concentration information of the specified component in the liquid in the cuvette 100 by analyzing the light intensity change of the specified wavelength. Alternatively, the light passes through the sample liquid contained in the cuvette 100, the liquid can emit fluorescence after absorption of the spectrum, and the detector 30 can detect the change in intensity of the fluorescence signal, thereby obtaining the concentration of the specified component in the liquid.

Referring to fig. 4, as an embodiment, the water quality detecting apparatus 1 further includes a mounting plate 40, the filter 20 includes a rotating wheel 23 disposed on the mounting plate 40 to rotate, and all the filter holes 21 are uniformly distributed on the rotating wheel 23 in a circumferential direction around a rotating shaft of the rotating wheel 23. In a specific application, the optical filter 20 switches the optical filter 22 preferably by rotating the rotating wheel 23 relative to the mounting plate 40 to switch different optical filters 22, and of course, in an actual application, the optical filter 20 switches the optical filter 22 by a combination of different ways such as linear movement, and the like, and those skilled in the art should be considered as the protection scope of the present technical solution without creative work.

Referring to fig. 2 and 5, as an embodiment, the water quality detecting apparatus 1 further includes a driving mechanism 50, wherein the driving mechanism 50 is used for driving the rotating wheel 23 to rotate so as to switch the filtering holes 21; the driving mechanism 50 includes a driving source 51, a belt pulley 52 and a belt 53, the driving source 51 is mounted on the mounting plate 40, an output rotating shaft 513 of the driving source 51 is coaxially connected with the belt pulley 52, and the belt pulley 52 drives the rotating wheel 23 to rotate through the belt 53. In a specific application, the driving mechanism 50 is preferably a belt transmission mechanism to realize the rotation of the rotating wheel 23 relative to the mounting plate 40.

Referring to fig. 3, as an embodiment, the driving source 51 includes a housing 511, a mounting platform 512 and a rotating shaft 513, the housing 511 is provided with the mounting platform 512 in a protruding manner toward the mounting plate 40, the mounting platform 512 includes a first end face 5121 far away from the housing 511 and a second end face 5122 opposite to the first end face 5121, the rotating shaft 513 extends outwards from the first end face 5121 and is connected with the pulley 52, the mounting plate 40 is provided with a front end face 41 and a rear end face 42 opposite to the front end face 41, and the driving source 51 is fixedly connected with the rear end face 42 through the first end face 5121; or the driving source 51 is fixedly connected with the front end face 41 through the second end face 5122. In a specific application, the driving source 51 is the motor driving mechanism 50, and generally, when a motor is mounted, a fixed connection mode between the first end face 5121 and the rear end face 42 is preferably considered, which is beneficial to the compactness of the structure of the driving mechanism 50, but in a practical application, a fixed connection mode between the second end face 5122 and the front end face 41 may be selected.

Referring to fig. 4, as an embodiment, the water quality detecting apparatus 1 further includes a housing 60, the housing 60 is connected to the mounting plate 40 for shielding external stray light, and the housing 60 is provided with a first light passing hole 61, and the first light passing hole 61 is used for passing through the light filtered by the filter 20. In the concrete application, the shell 60 can shield the influence of external veiling glare on the water quality index of the water quality detection device 1, and meanwhile, the shell 60 is provided with a first light through hole 61 which is through and used for transmitting light rays of each wave band.

Referring to fig. 4 and 5, as an embodiment, the water quality detecting apparatus 1 further includes a first lens assembly 70, the first lens assembly 70 includes a first lens 71 and an encapsulating plate 72, the housing 60 is provided with a lens mounting hole 62, the first lens 71 is mounted in the lens mounting hole 62 for converging the light emitted from the first light passing hole 61, the encapsulating plate 72 is located between the first lens 71 and the detector 30, and the encapsulating plate 72 is used for encapsulating the first lens 71 in the lens mounting hole 62 and passing the converged light. In a specific application, the first lens 71 is a plano-convex lens, the first lens 71 is disposed between the filter 20 and the detector 30, and light filtered by the filter 20 can be converged and then irradiated into the cuvette 100, so as to improve the performance of the detector 30 in detecting the water quality index.

Referring to fig. 4, as an embodiment, the water quality detecting apparatus 1 further includes a second lens assembly 80, the second lens assembly 80 includes a second lens 81 and a lens mounting seat 82, the lens mounting seat 82 is mounted on the mounting plate 40, and the second lens 81 is disposed on the lens mounting seat 82 for converging the light of the light source generator 10. In a specific application, the second lens 81 is a plano-convex lens having a different thickness from that of the plano-convex lens of the first lens 71, and the first lens 71 is disposed between the light source generator 10 and the filter, so that light rays in the light source generator 10 can be converged and then pass through the filter 20, which is beneficial to reducing problems such as light intensity reduction caused by astigmatism.

Referring to fig. 2 and 5, as an embodiment, the water quality detecting apparatus 1 further includes a positioner 90, the positioner 90 is mounted on the mounting plate 40, the rotating wheel 23 is provided with a positioning origin, and the positioner 90 is used for positioning the positioning origin of the rotating wheel 23. In a specific application, before the water quality detection device 1 is used, the rotating wheel 23 is positioned at the original point through the positioner 90.

Referring to fig. 2 and 6, as an embodiment, the positioner 90 includes an infrared detector 91 and a detector mounting seat for mounting the infrared detector 91, a positioning ring 231 is protruded from a periphery of the rotating wheel 23, the positioning ring 231 is provided with a slot 2311, and the infrared detector 91 is sleeved on the positioning ring 231 for detecting a position of the slot 2311. In the specific application, the detector is sleeved on the positioning ring 231, which is beneficial to the positioning device 90 to be compactly arranged on the water quality detection device 1.

Referring to fig. 1, as an embodiment, the light source generator 10 is a pulsed xenon lamp. In specific application, the pulse xenon lamp has the characteristics of high stability, high brightness, small heat productivity and small power consumption, and meanwhile, the spectral range of the xenon lamp is generally between 185nm and 2000nm, so that the spectral response range is greatly improved, and the pulse xenon lamp can be applied to various spectrophotometry methods and ultraviolet fluorescence method water quality parameter analysis and detection; on the other hand, the pulse xenon lamp is easy to control, good in synchronism with the water quality detection device 1 and high in detection precision.

Referring to fig. 1, as an embodiment, the water quality detecting apparatus 1 is mainly applied to rapid water quality measurement by optical detection using a laboratory platform. The main monitoring parameters comprise nitrate, nitrite, phosphate, ammonia nitrogen, silicate, metal ions such as copper, zinc and hexavalent chromium, and the monitoring requirements of various water samples can be met.

The working principle is as follows: placing the cuvette 100 containing the liquid to be detected in the detector 30 and the filter 20 at intervals, wherein a space for containing the cuvette 100 is formed by the arrangement of the detector 30 and the filter 20 in an opposite manner, the driving mechanism 50 drives the rotating wheel 23 to be switched into different filters 22, the required filtering mode is adjusted, the control system triggers and turns on the pulse xenon lamp, meanwhile, the detector 30 starts to detect to obtain a photoelectric detection signal, and the detection signal is obtained by single measurement or multiple measurements and averaging;

the rotating wheel 23 on the filter 20 is provided with a positioning origin, and the type and specific position of the filter 22 after each rotation can be determined by the positioner 90, so as to achieve the best light path effect.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. A water quality detection device, comprising:

a light source generator for emitting light;

the optical filter is provided with at least two filter holes for light to pass through, each filter hole is provided with different optical filters, and the optical filter is used for switching the filter holes in a moving way so that the light can respectively penetrate through the different optical filters;

the detector, the detector with the filter interval sets up relatively and is formed with the space that is used for the holding cell, the detector is used for receiving to pass through in proper order the light of light filter and cell to detect the liquid in the cell.

2. The water quality detecting device according to claim 1, wherein the water quality detecting device further comprises a mounting plate, the optical filter comprises a rotating wheel which is arranged on the mounting plate to rotate, and all the optical filtering holes are uniformly distributed on the rotating wheel in a circumference manner by taking a rotating shaft of the rotating wheel as a center.

3. The water quality detecting device according to claim 2, wherein the water quality detecting device further comprises a driving mechanism for driving the rotating wheel to rotate to switch the filter holes; the actuating mechanism includes driving source, belt pulley and belt, the driving source is installed on the mounting panel, the output pivot of driving source with the belt pulley is connected with the axle center, the belt pulley passes through the belt drives it rotates to rotate the wheel.

4. The water quality detecting device according to claim 3, wherein the driving source comprises a housing, a mounting platform and a rotating shaft, the housing is convexly connected with the mounting platform towards the mounting plate, the mounting platform comprises a first end surface far away from the housing and a second end surface opposite to the first end surface, the rotating shaft extends outwards from the first end surface and is connected with the belt pulley, the mounting plate is provided with a front end surface and a rear end surface opposite to the front end surface, and the driving source is fixedly connected with the rear end surface through the first end surface; or the driving source is fixedly connected with the front end face through the second end face.

5. The water quality detecting device according to any one of claims 2 to 4, further comprising a housing, wherein the housing is connected to the mounting plate for shielding external stray light, and the housing is provided with a first light through hole for transmitting the light filtered by the light filter.

6. The water quality detecting device according to claim 5, wherein the water quality detecting device further comprises a first lens assembly, the first lens assembly comprises a first lens and a packaging plate, the housing is provided with a lens mounting hole, the first lens is mounted in the lens mounting hole and used for gathering light emitted from the first light through hole, the packaging plate is located between the first lens and the detector, and the packaging plate is used for packaging the first lens in the lens mounting hole and penetrating through the gathered light.

7. The water quality detecting device according to any one of claims 2 to 4, wherein the water quality detecting device further comprises a second lens assembly, the second lens assembly comprises a second lens and a lens mounting seat, the lens mounting seat is mounted on the mounting plate, and the second lens is arranged on the lens mounting seat and is used for converging the light rays of the light source generator.

8. The water quality detecting device according to any one of claims 2 to 4, further comprising a positioner, wherein the positioner is mounted on the mounting plate, the rotating wheel is provided with a positioning origin, and the positioner is used for positioning the positioning origin of the rotating wheel.

9. The water quality detecting device according to claim 8, wherein the positioner comprises an infrared detector and a detector mounting seat for mounting the infrared detector, a positioning ring is convexly arranged on the periphery of the rotating wheel, the positioning ring is provided with a slotted hole, and the infrared detector is sleeved on the positioning ring for detecting the position of the slotted hole.

10. The water quality detecting device according to any one of claims 1 to 4, wherein the light source generator is a pulsed xenon lamp.

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