CN211697499U - Metering device for water quality analyzer - Google Patents
Metering device for water quality analyzer Download PDFInfo
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- CN211697499U CN211697499U CN202020055267.1U CN202020055267U CN211697499U CN 211697499 U CN211697499 U CN 211697499U CN 202020055267 U CN202020055267 U CN 202020055267U CN 211697499 U CN211697499 U CN 211697499U
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- glass tube
- water quality
- guide pad
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Abstract
The utility model relates to a metering device for water quality analyzer, it includes: the device comprises a light source, a photosensitive receiver, a glass tube and a metering bracket, wherein the light source is arranged on one side in the metering device, the photosensitive receiver is arranged on the other side in the metering device, the glass tube is arranged between the light source and the photosensitive receiver, and the metering bracket is used for fixing the light source, the photosensitive receiver and the glass tube; wherein: the metering support comprises a long groove visible window arranged in front of the glass tube, and a shading block is arranged in the long groove visible window. According to the measuring device, the long groove visible window is formed in the measuring support in front of the glass tube between the light source and the photosensitive receiver, and the shading block is arranged in the long groove visible window, so that the photosensitive receiver is prevented from being interfered by external light, and the measuring accuracy is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of water quality analysis technique and specifically relates to a metering device for water quality analyzer is related to.
Background
The water quality analyzer is a common water quality analysis tool and plays a very important role in the environmental monitoring process, and the quality of the water quality analyzer and the monitoring level directly influence the accuracy of the monitoring result.
The measuring device in the existing water quality analyzer is often inaccurate in measuring result in the measuring process of the water quality analyzer due to various design and manufacturing reasons, and even directly leads to the fact that the water quality analyzer cannot measure.
Disclosure of Invention
An object of the utility model is to provide a measurement device for water quality analyzer has avoided photosensitive receiver to receive the interference of external light, guarantees the accuracy of water quality analyzer's measurement.
The technical scheme of the application is as follows: a metering device for a water quality analyzer, comprising: the device comprises a light source, a photosensitive receiver, a glass tube and a metering bracket, wherein the light source is arranged on one side in the metering device, the photosensitive receiver is arranged on the other side in the metering device, the glass tube is arranged between the light source and the photosensitive receiver, and the metering bracket is used for fixing the light source, the photosensitive receiver and the glass tube; wherein: the metering support comprises a long groove visible window arranged in front of the glass tube, and a shading block is arranged in the long groove visible window.
Preferably, the shading block is arranged on one side of the long groove close to the photosensitive receiver.
In the embodiment, the shading block is arranged on one side, close to the photosensitive receiver, in the long groove, so that the photosensitive receiver is better prevented from being interfered by external light, and the metering accuracy of the water quality analyzer is ensured.
Preferably, the upper end of the glass tube is provided with an upper guide pad, and the lower end of the glass tube is provided with a lower guide pad; the glass tube is disposed between the upper guide pad and the lower guide pad.
This embodiment is through being in with the glass pipe setting go up the guide pad with between the guide pad down, can guarantee that the complete vertical placing of glass pipe can not rock, play simultaneously and support and sealed effect, can bear great fastening force, guarantee can not the weeping gas leakage.
Preferably, the upper guide pad is fixed at the top end of the metering device through a fastening nut; an elastic gasket is arranged between the fastening nut and the guide pad.
This embodiment through fastening nut with go up and be provided with the gasket between the direction pad, can play certain cushioning effect, reinforcing shock resistance can protect the glass pipe not cracked in fastening installation and transportation.
Preferably, an air pipe is connected to an upper end opening of the upper guide pad.
In the embodiment, the upper end opening of the upper guide pad is connected with the air pipe, so that the smoothness between the interior of the metering device and the air is ensured.
Preferably, the lower end of the lower guide pad is respectively provided with a first lower end opening and a second lower end opening, the first lower end opening is arranged at the lower end of the bottom of the metering device, and the second lower end opening is arranged at the side end of the bottom of the metering device.
According to the embodiment, a side end opening is added instead of a three-way valve or a common multi-connection valve, so that pollution among different reagents is avoided, and the accuracy of system measurement is ensured. Meanwhile, the waste liquid increased in cleaning due to reagent pollution is reduced.
Preferably, a sealing ring is arranged at an opening for fixing the light source and the photosensitive receiver.
This embodiment through at fixed light source with photosensitive receiver's opening part is provided with the sealing washer, can prevent that the dust from getting into the light path through the clearance in light path hole, increases the module sealing function, makes the module can adapt to abominable service environment.
Preferably, a light-transmissive shield is mounted in front of the metrology frame.
This embodiment prevents dust from entering the optical path through the viewing window in front of the glass tube while retaining the visual function by providing a light-transmissive shield in front of the metering support.
According to the measuring device, the long groove visible window is formed in the measuring support in front of the glass tube, and the shading block is arranged in the long groove visible window, so that the photosensitive receiver is prevented from being interfered by external light, and the measuring accuracy is guaranteed.
Drawings
Fig. 1 is a schematic view of the internal structure of a water quality analyzer to which a measuring device is applied in the present application;
FIG. 2 is a schematic view of a partial internal structure of a metrology device of the present application;
fig. 3 is a schematic view of the external structure of the metering device in the present application.
Reference numerals:
101 metering device, 102 reaction cell, 103 connecting piece, 104 electromagnetic valve, 105 multi-connection valve, 106 peristaltic pump, 201 upper guide pad, 202 metering support, 203 glass tube, 204 light source, 206 sealing ring, 207 photosensitive receiver, 208 second lower end opening, 209 lower guide pad, 210 first lower end opening, 211 fastening nut, 212 elastic gasket, 301 front assembling shield, 303 metering support, 304 shading block and 305 long groove visible window.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The utility model provides a measurement device for water quality analyzer has avoided photosensitive receiver to receive the interference of external light, guarantees the accuracy of water quality analyzer's measurement.
Referring to fig. 1-3, the technical solution of the present application is: a metering device for a water quality analyzer, comprising: the device comprises a light source, a photosensitive receiver, a glass tube and a metering bracket, wherein the light source is arranged on one side in the metering device, the photosensitive receiver is arranged on the other side in the metering device, the glass tube is arranged between the light source and the photosensitive receiver, and the metering bracket is used for fixing the light source, the photosensitive receiver and the glass tube; wherein: the metering support comprises a long groove visible window arranged in front of the glass tube, and a shading block is arranged in the long groove visible window.
Referring to fig. 1, in the operation process of the metering device 101, the reagent participating in the analysis and the water sample to be measured are pushed by the peristaltic pump 106, pass through the multi-connection valve 105, and enter the metering device under the negative pressure to meter the volume. After the metering is completed, the electromagnetic valve 104 is connected with the metering device 101 through the connecting piece 103 through the electromagnetic valve 104, and reaches the reaction cell 102 for measurement.
Preferably, the shading block is arranged on one side of the long groove close to the photosensitive receiver.
In the embodiment, the shading block is arranged on one side, close to the photosensitive receiver, in the long groove, so that the photosensitive receiver is better prevented from being interfered by external light, and the metering accuracy of the water quality analyzer is ensured.
Preferably, the upper end of the glass tube is provided with an upper guide pad, and the lower end of the glass tube is provided with a lower guide pad; the glass tube is disposed between the upper guide pad and the lower guide pad.
This embodiment is through being in with the glass pipe setting go up the guide pad with between the guide pad down, can guarantee that the complete vertical placing of glass pipe can not rock, play simultaneously and support and sealed effect, can bear great fastening force, guarantee can not the weeping gas leakage.
Preferably, the upper guide pad is fixed at the top end of the metering device through a fastening nut; an elastic gasket is arranged between the fastening nut and the upper guide pad.
This embodiment through fastening nut with go up and be provided with the gasket between the direction pad, can play certain cushioning effect, reinforcing shock resistance can protect the glass pipe not cracked in fastening installation and transportation.
Preferably, an air pipe is connected to an upper end opening of the upper guide pad.
As shown in fig. 2, the internal structure of the measuring device 101 apparatus is composed of the following components: the device comprises an upper guide pad 201, a metering support 202, a glass tube 203, a light source 204, a sealing ring 206, a photosensitive receiver 207, a second lower end opening 208, a lower guide pad 209, a first lower end opening 210, a fastening nut 211 and an elastic gasket 212.
Fig. 3 is a schematic view of the external structure of the metering device in the present application. Consists of the following components: a front-mounted shield 301, a glass tube 203, a metering support 303, a light-blocking block 304, and an elongated slot viewing window 305.
In the embodiment, the upper end opening of the upper guide pad is connected with the air pipe, so that the smoothness between the interior of the metering device and the air is ensured.
Preferably, the lower end of the lower guide pad is respectively provided with a first lower end opening and a second lower end opening, the first lower end opening is arranged at the lower end of the bottom of the metering device, and the second lower end opening is arranged at the side end of the bottom of the metering device.
According to the embodiment, a side end opening is added instead of a three-way valve or a common multi-connection valve, so that pollution among different reagents is avoided, and the accuracy of system measurement is ensured. Meanwhile, the waste liquid increased in cleaning due to reagent pollution is reduced.
Preferably, a sealing ring is arranged at an opening for fixing the light source and the photosensitive receiver.
This embodiment through at fixed light source with photosensitive receiver's opening part is provided with the sealing washer and can prevents that the dust from getting into the light path through the clearance in light path hole, increases the module sealing function, makes the module can adapt to abominable service environment.
Preferably, a light-transmissive shield is mounted in front of the metrology frame.
This embodiment prevents dust from entering the optical path through the viewing window in front of the glass tube while retaining the visual function by providing a light-transmissive shield in front of the metering support.
According to the measuring device, the long groove visible window is formed in the measuring support in front of the glass tube, and the shading block is arranged in the long groove visible window, so that the photosensitive receiver is prevented from being interfered by external light, and the measuring accuracy is guaranteed.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A metering device for a water quality analyzer, comprising: the device comprises a light source, a photosensitive receiver, a glass tube and a metering bracket, wherein the light source is arranged on one side in the metering device, the photosensitive receiver is arranged on the other side in the metering device, the glass tube is arranged between the light source and the photosensitive receiver, and the metering bracket is used for fixing the light source, the photosensitive receiver and the glass tube; wherein:
the metering support comprises a long groove visible window arranged in front of the glass tube, and a shading block is arranged in the long groove visible window.
2. A metering device for a water analyser as claimed in claim 1 wherein the light blocking block is provided in the elongate slot on a side thereof adjacent the light sensitive receiver.
3. The metering device for the water quality analyzer according to claim 1, wherein an upper guide pad is arranged at the upper end of the glass tube, and a lower guide pad is arranged at the lower end of the glass tube; the glass tube is disposed between the upper guide pad and the lower guide pad.
4. A measuring device for a water quality analyzer according to claim 3, wherein the upper guide pad is fixed to a top end of the measuring device by a fastening nut; an elastic gasket is arranged between the fastening nut and the upper guide pad.
5. A measuring device for a water quality analyzer according to claim 3 or 4, wherein an air tube is connected to an upper end opening of the upper guide pad.
6. A measuring device for a water quality analyzer according to claim 3 or 4, wherein the lower end of the lower guide pad is opened with a first lower end opening and a second lower end opening, respectively, the first lower end opening is provided at the lower end of the bottom of the measuring device, and the second lower end opening is provided at the side end of the bottom of the measuring device.
7. A measuring device for a water quality analyzer according to claim 1, wherein a sealing ring is provided at an opening for fixing the light source and the photosensitive receiver.
8. A metering device for a water quality analyser as claimed in claim 1 wherein a light-transmissive shroud is fitted in front of the metering support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020055267.1U CN211697499U (en) | 2020-01-10 | 2020-01-10 | Metering device for water quality analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020055267.1U CN211697499U (en) | 2020-01-10 | 2020-01-10 | Metering device for water quality analyzer |
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| Publication Number | Publication Date |
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| CN211697499U true CN211697499U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020055267.1U Active CN211697499U (en) | 2020-01-10 | 2020-01-10 | Metering device for water quality analyzer |
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| CN (1) | CN211697499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876694A (en) * | 2022-11-24 | 2023-03-31 | 上海博取仪器有限公司 | Metering device for water quality monitor |
-
2020
- 2020-01-10 CN CN202020055267.1U patent/CN211697499U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876694A (en) * | 2022-11-24 | 2023-03-31 | 上海博取仪器有限公司 | Metering device for water quality monitor |
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