Light-protected flow cell

Abstract

The application discloses a light-proof flow cell and relates to the field of particle counter accessories, which comprises a first shell and a second shell, flow holes are formed in the first shell and the second shell, a wear-resistant light-blocking layer is arranged between the first shell and the second shell, a plurality of first plug-in holes are formed in the second shell, and a plurality of corresponding first plug-in columns are arranged in the plurality of first plug-in holes. The first shell and the second shell are made of quartz diamond material, and the hardness is high, so that the contact with the detection liquid is diamond material, the wear resistance can be improved, the first plug-in hole and the first plug-in column are arranged at four corners and are matched, and the butt joint precision is improved, so that the grinding effect of the flow holes by the grinding liquid can be effectively reduced, the phenomenon that the pore size of the flow cell becomes large can be avoided, and therefore the accuracy is not greatly affected during counting, and the stability during use and the counting accuracy are improved.

Description

Technical Field

[0001] This application relates to the field of particle counter accessories, and in particular to light-shielding flow cells. Background Technology

[0002] A particle counter is a device used to measure the number of particles. It is widely used in various fields, including industrial production, environmental monitoring, and scientific research. The flow cell inside the particle counter is one of its core components. It is mainly used to count and measure particles by optical or electrical methods as the sample flows through the detection area.

[0003] Currently, most flow cells are made of transparent plastic. The application scenario for counting media particles is the detection of grinding slurries. The particles in the grinding slurry are hard, so after long-term use, the grinding slurry will polish the inner wall of the flow cell orifice, which will cause the orifice diameter of the flow cell to increase. This will result in a decrease in counting accuracy (with a larger orifice diameter, the light-blocking effect of large particles is reduced, and the light-scattering effect of small particles is improved). Summary of the Invention

[0004] To prevent the flow cell aperture from becoming larger, this application provides a light-proof flow cell.

[0005] The light-shielding circulation pool provided in this application adopts the following technical solution: The light-shielding circulation pool includes a first shell and a second shell. Circulation holes are provided on the first shell and the second shell. A wear-resistant light-shielding layer is provided between the first shell and the second shell. A plurality of first insertion holes are provided on the second shell. A plurality of corresponding first insertion posts are provided in each of the plurality of first insertion holes. The plurality of first insertion posts are fixedly connected to the first shell. The first shell and the second shell are made of quartz diamond material. The wear-resistant light-shielding layer is made of wear-resistant light-shielding material. The circulation holes are circular.

[0006] By adopting the above technical solution, the first and second shells are made of quartz diamond, which has high hardness. Therefore, the materials in contact with the detection liquid are all diamond, which can improve wear resistance. The four corners are provided with first insertion holes and first insertion posts to improve the docking accuracy. This can effectively reduce the grinding effect of the grinding liquid on the flow hole, and thus prevent the diameter of the flow cell from becoming larger. Therefore, it will not have a significant impact on the accuracy during counting, and improves the stability and counting accuracy during use.

[0007] Preferably, the first housing and the second housing are provided with square holes, the second housing is provided with a plurality of second insertion holes, the plurality of second insertion holes are provided with a plurality of corresponding second insertion posts, and the plurality of second insertion posts are fixedly connected to the first housing.

[0008] By adopting the above technical solution, the circular flow hole in this application can be replaced with a square hole, so that the appropriate method can be selected according to the actual use needs, thereby improving the convenience and flexibility of use.

[0009] Preferably, the first housing and the second housing are provided with corresponding first semicircular holes and second semicircular holes.

[0010] By adopting the above technical solution and setting the first semicircular hole and the second semicircular hole, the assembly accuracy requirement can be reduced.

[0011] Preferably, the second housing has a plurality of third insertion holes, each of which has a plurality of corresponding third insertion posts, and each of the plurality of third insertion posts is fixedly connected to the first housing.

[0012] By adopting the above technical solution, the installation can be aided by setting a third insertion hole and a third insertion post.

[0013] Preferably, the first housing and the second housing are provided with corresponding third semicircular holes and fourth semicircular holes, and the corresponding third semicircular holes and fourth semicircular holes on the first housing and the second housing are in mutual pressing contact.

[0014] By adopting the above technical solution, the corresponding third and fourth semicircular holes on the first and second housings are pressed together, thereby ensuring sealing.

[0015] Preferably, the second housing has multiple insertion slots, and a corresponding second wedge block is slidably installed in each of the multiple insertion slots. The first housing has multiple corresponding first wedge blocks fixedly installed, and each of the multiple first wedge blocks is adapted to the corresponding second wedge block.

[0016] By adopting the above technical solution, the docking accuracy can be improved through the cooperation of the insertion groove, the first wedge block and the second wedge block, thereby improving the stability and firmness after docking. Therefore, the stability and counting accuracy of the flow cell can be improved during use.

[0017] Preferably, the first and second semicircular holes are arranged symmetrically and parallelly, while the third and fourth semicircular holes are arranged alternately.

[0018] By adopting the above technical solution, and by staggering the third and fourth semicircular holes, the precision requirements during assembly can be reduced.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. This application utilizes the cooperation of a first shell and the like. The first and second shells are made of quartz diamond, which has high hardness. Therefore, all materials in contact with the detection liquid are diamond, which can improve wear resistance. Furthermore, the four corners are provided with first insertion holes and first insertion posts to improve the docking accuracy. This can effectively reduce the abrasive effect of the grinding liquid on the flow hole, thereby preventing the flow cell aperture from becoming larger. Therefore, during counting, it will not have a significant impact on accuracy, improving the stability and counting precision during use.

[0020] 2. This application utilizes the interlocking groove and other mechanisms to replace the circular flow hole with a square hole, a first semicircular hole, a second semicircular hole, a third semicircular hole, and a fourth semicircular hole, thereby reducing the requirements for assembly precision. Even if horizontal misalignment occurs, the sealing performance of the flow hole can still be ensured. Through the cooperation of the interlocking groove, the first wedge block, and the second wedge block, the docking precision can be improved, thereby enhancing the stability and firmness after docking. Therefore, the stability and counting accuracy of the flow cell during use can be improved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the light-shielding circulation pool according to an embodiment of this application; Figure 2 This is a schematic diagram illustrating a partial unfolded structure of the light-shielding flow pool, which is the main feature of this application embodiment. Figure 3 This is a schematic diagram illustrating the plug-in structure, representing a key embodiment of this application. Figure 4 This is a schematic diagram illustrating a partial unfolded structure of the light-shielding flow pool, which is a key feature of this application's embodiments. Figure 5 This is a schematic diagram illustrating a partial unfolded structure of the light-shielding flow pool, which is the main feature of this application embodiment. Reference numerals: 1. First housing; 2. Second housing; 3. Wear-resistant light-shielding layer; 4. Flow hole; 7. First insertion hole; 8. First insertion post; 10. Square hole; 11. Second insertion hole; 12. Second insertion post; 13. First semi-circular hole; 14. Second semi-circular hole; 15. Third insertion hole; 16. Third insertion post; 17. Third semi-circular hole; 18. Fourth semi-circular hole; 19. Insertion groove; 20. First wedge block; 21. Second wedge block. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0023] This application discloses a light-shielding circulation pool in its embodiments. Example 1

[0024] Reference Figure 1-3 The light-shielding circulation pool includes a first shell 1 and a second shell 2, with circulation holes 4 on the first shell 1 and the second shell 2. A wear-resistant light-shielding layer 3 is provided between the first shell 1 and the second shell 2. The wear-resistant light-shielding layer 3 in this application is a wear-resistant light-shielding material, and can be a variety of different wear-resistant light-shielding materials. The second shell 2 has multiple first insertion holes 7, and each of the multiple first insertion holes 7 has multiple corresponding first insertion posts 8. The multiple first insertion posts 8 are fixedly connected to the first shell 1. The first shell 1 and the second shell 2 are made of quartz diamond material, and the circulation holes 4 are circular.

[0025] In use, the first housing 1 and the second housing 2 are made of quartz diamond, which has high hardness. Therefore, the materials in contact with the detection liquid are all diamond, which can improve wear resistance. The four corners are provided with first insertion holes 7 and first insertion posts 8 to cooperate and improve the docking accuracy. This can effectively reduce the grinding effect of the grinding liquid on the flow hole 4, and thus prevent the diameter of the flow cell from becoming larger. Therefore, it will not have a significant impact on the accuracy during counting, and improves the stability and counting accuracy during use. Example 2

[0026] Reference Figure 3-4 The first housing 1 and the second housing 2 are provided with square holes 10. The second housing 2 is provided with multiple second insertion holes 11. Multiple second insertion posts 12 are provided in the multiple second insertion holes 11. The multiple second insertion posts 12 are all fixedly connected to the first housing 1. The first housing 1 and the second housing 2 are provided with corresponding first semicircular holes 13 and second semicircular holes 14. The second housing 2 is provided with multiple third insertion holes 15. Multiple third insertion posts 16 are provided in the multiple third insertion holes 15. The multiple third insertion posts 16 are all fixedly connected to the first housing 1.

[0027] In use, the circular flow hole 4 in this application can be replaced with a square hole 10, so that the appropriate method can be selected according to the actual use needs, thereby improving the convenience and flexibility of use. Example 3

[0028] Reference Figure 4-5The first housing 1 and the second housing 2 are provided with corresponding third semicircular holes 17 and fourth semicircular holes 18. The corresponding third semicircular holes 17 and fourth semicircular holes 18 on the first housing 1 and the second housing 2 are pressed together. Multiple insertion slots 19 are provided on the second housing 2. A corresponding second wedge block 21 is slidably installed in each of the multiple insertion slots 19. Multiple corresponding first wedge blocks 20 are fixedly installed on the first housing 1. The multiple first wedge blocks 20 are adapted to the corresponding second wedge blocks 21. The first semicircular holes 13 and second semicircular holes 14 are symmetrically parallel. The third semicircular holes 17 and fourth semicircular holes 18 are staggered.

[0029] In use, the first semicircular hole 13, the second semicircular hole 14, the third semicircular hole 17 and the fourth semicircular hole 18 can reduce the requirements for assembly precision. Even if horizontal misalignment occurs, the sealing of the flow hole 4 can still be ensured. Through the cooperation of the insertion groove 19, the first wedge block 20 and the second wedge block 21, the docking precision can be improved, thereby improving the stability and firmness after docking. Therefore, the stability and counting accuracy of the flow cell during use can be improved.

[0030] The implementation principle of the light-shielding flow cell in this application embodiment is as follows: During use, the first shell 1 and the second shell 2 are made of quartz diamond material, which has high hardness. Therefore, the material in contact with the detection liquid is diamond, which can improve wear resistance. The four corners are provided with first insertion holes 7 and first insertion posts 8 to cooperate and improve the docking accuracy. This can effectively reduce the grinding effect of the grinding liquid on the flow hole 4, and thus avoid the phenomenon that the pore size of the flow cell will increase. Therefore, during counting, it will not have a significant impact on accuracy, improving the stability and counting accuracy during use. In this application, the circular flow hole 4 can be replaced with a square hole 10, a first semicircular hole 13, a second semicircular hole 14, a third semicircular hole 17, and a fourth semicircular hole 18, which can reduce the assembly accuracy requirements. Even if horizontal misalignment occurs, the sealing performance of the flow hole 4 can still be ensured. Through the cooperation of the insertion groove 19, the first wedge block 20, and the second wedge block 21, the docking accuracy can be improved, thereby improving the stability and firmness after docking. Therefore, the stability and counting accuracy of the flow cell during use can be improved.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A light-shielding circulation pool, comprising a first shell (1) and a second shell (2), wherein the first shell (1) and the second shell (2) are provided with circulation holes (4), characterized in that: A wear-resistant light-shielding layer (3) is provided between the first housing (1) and the second housing (2). The second housing (2) is provided with a plurality of first insertion holes (7). Each of the plurality of first insertion holes (7) is provided with a plurality of corresponding first insertion posts (8). The plurality of first insertion posts (8) are fixedly connected to the first housing (1). The first housing (1) and the second housing (2) are made of quartz diamond. The wear-resistant light-shielding layer (3) is made of wear-resistant light-shielding material. The flow hole (4) is circular.

2. The light-shielding circulation pool according to claim 1, characterized in that: The first housing (1) and the second housing (2) are provided with square holes (10), and the second housing (2) is provided with multiple second insertion holes (11). Multiple second insertion posts (12) are provided in the multiple second insertion holes (11), and the multiple second insertion posts (12) are fixedly connected to the first housing (1).

3. The light-shielding circulation pool according to claim 1, characterized in that: The first housing (1) and the second housing (2) are provided with corresponding first semicircular holes (13) and second semicircular holes (14).

4. The light-shielding circulation pool according to claim 1, characterized in that: The second housing (2) has a plurality of third insertion holes (15), and each of the plurality of third insertion holes (15) has a plurality of corresponding third insertion posts (16), and each of the plurality of third insertion posts (16) is fixedly connected to the first housing (1).

5. The light-shielding circulation pool according to claim 3, characterized in that: The first housing (1) and the second housing (2) are provided with corresponding third semicircular holes (17) and fourth semicircular holes (18), and the corresponding third semicircular holes (17) and fourth semicircular holes (18) on the first housing (1) and the second housing (2) are in mutual pressing contact.

6. The light-shielding circulation pool according to claim 1, characterized in that: The second housing (2) is provided with multiple insertion slots (19), and each of the multiple insertion slots (19) is slidably installed with a corresponding second wedge block (21). The first housing (1) is fixedly installed with multiple corresponding first wedge blocks (20), and each of the multiple first wedge blocks (20) is adapted to the corresponding second wedge block (21).

7. The light-shielding circulation pool according to claim 5, characterized in that: The first semicircular hole (13) and the second semicircular hole (14) are arranged symmetrically and parallelly, while the third semicircular hole (17) and the fourth semicircular hole (18) are arranged alternately.

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