CN217430947U - Sampling needle protection device - Google Patents
Sampling needle protection device Download PDFInfo
- Publication number
- CN217430947U CN217430947U CN202123152010.1U CN202123152010U CN217430947U CN 217430947 U CN217430947 U CN 217430947U CN 202123152010 U CN202123152010 U CN 202123152010U CN 217430947 U CN217430947 U CN 217430947U
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- China
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- protection device
- box body
- filter plate
- sampling needle
- baffle
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Abstract
The utility model provides a sampling needle protection device, which is used for a COD water quality monitoring system and comprises a protection device box body and a cover; the protection device comprises a protection device box body and a control device, wherein a first filter plate, a second filter plate, a first baffle, a second baffle and a triangular weir are sequentially arranged in the protection device box body; the first filter plate is provided with a large-particle filter screen; the second filter plate is provided with a small particle filter screen; the bottoms of the first filter plate and the second filter plate are connected with the bottom of the box body of the protection device through clamping grooves; the side edges of the first filter plate and the second filter plate can slide in a slide rail arranged on the inner side wall of the box body of the protection device; the triangular weir is vertically arranged between the second baffle and the inner wall of the box body of the protection device; the side wall of the device box body is provided with a water inlet hole, a water outlet and a sampling port, wherein the water inlet hole is positioned between the first filter plate and the inner wall of the protection device box body; the water outlet and the sampling port are both positioned between the second baffle and the inner wall of the box body of the protection device. The utility model provides a sampling needle protection device adds the design of double-deck filter screen to the protection sampling needle.
Description
Technical Field
The utility model relates to a protection device especially relates to a sampling needle protection device.
Background
The COD water quality automatic monitoring equipment at the present stage mainly comprises units such as a sampling needle, a peristaltic pump, a connecting pipeline, a sample storage unit and a data analysis unit, and the COD concentration in a water sample is detected by instantly collecting, dropwise adding a reagent and comparing the absorbance of the sewage water sample. In order to avoid frequent blockage of the sampling needle, part of the equipment can isolate the floating object by winding the filter screen on the needle head. But the filter screen has small protection effect on the sampling needle and the peristaltic pump, and is easy to cause frequent blockage and damage.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to above-mentioned prior art's defect, provide a sampling needle protection device, simple structure, it is with low costs, the method is effective, and it is convenient to remove, can effectively separate the floater in the water sample, protective apparatus.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:
the sampling needle protection device is used for a COD water quality monitoring system and comprises a protection device box body and a cover; the protection device comprises a protection device box body and is characterized in that a first filter plate, a second filter plate, a first baffle, a second baffle and a triangular weir are sequentially arranged in the protection device box body; the first filter plate is provided with a large-particle filter screen; the second filter plate is provided with a small particle filter screen; the bottoms of the first filter plate and the second filter plate are connected with the bottom of the box body of the protection device through clamping grooves; the side edges of the first filter plate and the second filter plate can slide in a slide rail arranged on the inner side wall of the box body of the protection device; the triangular weir is vertically arranged between the second baffle and the inner wall of the box body of the protection device; a water inlet hole, a water outlet and a sampling port are arranged on the side wall of the device box body, wherein the water inlet hole is positioned between the first filter plate and the inner wall of the protection device box body; the water outlet and the sampling port are both positioned between the second baffle and the inner wall of the box body of the protection device.
Further, the clamping groove part is provided with a waterproof sealing layer.
Further, the triangular weir is a right-angle triangular weir.
Further, the protection device box is a cuboid.
Further, the water outlet is connected with a water pump.
Further, the sampling hole is connected with a sampling needle.
The utility model adopts the above technical scheme, compare with prior art, have following technical advantage:
the utility model provides a sampling needle protection device for COD water quality monitoring system adds the design of double-deck filter screen, increases its filter effect, thereby protects the sampling needle.
Drawings
Fig. 1 is a schematic view of the sampling needle protection device of the present invention;
wherein the reference numerals are:
a protection device case 1; a cover 2; a first filter screen 3; a second filter plate 4; a first baffle 5; a second baffle 6; a triangular weir 7; a water inlet 8; a water discharge port 9; a sampling port 10; and a waterproof sealing layer 11.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings, so as to better understand the present invention.
Referring to fig. 1, the embodiment provides a sampling needle protection device for a COD water quality monitoring system, comprising a protection device box 1 and a cover 2; the protection device comprises a protection device box body 1 and a control device, wherein a first filter plate 3, a second filter plate 4, a first baffle plate 5, a second baffle plate 6 and a triangular weir 7 are sequentially arranged in the protection device box body 1; the first filter plate 3 is provided with a large-particle filter screen; the second filter plate 4 is provided with a small particle filter screen; the bottoms of the first filter plate 3 and the second filter plate 4 are connected with the bottom of the protective device box body 1 through a clamping groove; the side edges of the first filter plate 3 and the second filter plate 4 can slide in a slide rail arranged on the inner side wall of the protective device box body 1; the triangular weir 7 is vertically arranged between the second baffle 6 and the inner wall of the protection device box body 1; a water inlet hole 8, a water outlet 9 and a sampling port 10 are arranged on the side wall of the device box body 1, wherein the water inlet hole 8 is positioned between the first filter plate 3 and the inner wall of the protection device box body 1; the water outlet 9 and the sampling port 10 are both positioned between the second baffle 6 and the inner wall of the protection device box body 1.
As a preferable example, the card slot portion is provided with a waterproof sealing layer 11.
As a preferred example, the triangular weir 7 is a right-angle triangular weir to ensure that the flow velocity of the effluent is uniform.
As a preferable example, a water pump is connected to the drain port 9.
As a preferred example, the sampling hole 10 is connected with a sampling needle.
The utility model discloses protection device's among COD quality of water automatic monitoring system operating principle as follows:
water gets into protection device by inlet opening 8, and inlet opening 8 is equipped with first filter 3 and second filter 4 behind, gets rid of large granule impurity, sand and tiny impurity in proper order, and second filter 4 is equipped with first baffle 5 and second baffle 6 behind, makes the rivers evenly distribute at the inside cross section of whole protection device. The design of the triangular weir 7 is adopted at the water outlet hole 10 to ensure that water after the floating objects are settled by gravity can uniformly flow out of the sampling hole 10. The water outlet 9 is connected with a water pump which discharges water at intervals, so that a detected water sample in the protection device is discharged and enters a new water sample, and the continuous sampling and analysis of a water source are achieved.
The cover 2 is arranged on the box body 1 of the device, the device can be opened periodically through the cover 2 to clean the inside, and the first filter plate 3 and the second filter plate 4 can be detached to be cleaned very conveniently.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (6)
1. A sampling needle protection device is used for a COD water quality monitoring system and is characterized by comprising a protection device box body (1) and a cover (2); a first filter plate (3), a second filter plate (4), a first baffle plate (5), a second baffle plate (6) and a triangular weir (7) are sequentially arranged in the protection device box body (1); the first filter plate (3) is provided with a large-particle filter screen; the second filter plate (4) is provided with a small particle filter screen; the bottoms of the first filter plate (3) and the second filter plate (4) are connected with the bottom of the protective device box body (1) through clamping grooves; the side edges of the first filter plate (3) and the second filter plate (4) can slide in a slide rail arranged on the inner side wall of the protective device box body (1); the triangular weir (7) is vertically arranged between the second baffle (6) and the inner wall of the protection device box body (1); a water inlet hole (8), a water outlet (9) and a sampling port (10) are formed in the side wall of the device box body (1), wherein the water inlet hole (8) is located between the first filter plate (3) and the inner wall of the protection device box body (1); the water outlet (9) and the sampling port (10) are both positioned between the second baffle (6) and the inner wall of the protection device box body (1).
2. A sampling needle protection device according to claim 1, characterized in that the card slot portion is provided with a water tight sealing (11).
3. The sampling needle protection device according to claim 1, characterized in that the triangular weir (7) is a right-angled triangular weir.
4. Sampling needle protection according to claim 1, characterized in that the protection device case (1) is a cuboid.
5. Sampling needle protection according to claim 1, characterized in that a water pump is connected to the water outlet (9).
6. A sampling needle protection device according to claim 1, characterized in that the sampling port (10) is adapted for connection to a sampling needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123152010.1U CN217430947U (en) | 2021-12-15 | 2021-12-15 | Sampling needle protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123152010.1U CN217430947U (en) | 2021-12-15 | 2021-12-15 | Sampling needle protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217430947U true CN217430947U (en) | 2022-09-16 |
Family
ID=83210357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123152010.1U Active CN217430947U (en) | 2021-12-15 | 2021-12-15 | Sampling needle protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217430947U (en) |
-
2021
- 2021-12-15 CN CN202123152010.1U patent/CN217430947U/en active Active
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