Low-optical-path flow cell
By designing the pool window assembly and lens of the low-optical flow cell as an integrated structure, the problem of inefficient disassembly and assembly of the existing flow cell is solved, and more efficient disassembly and assembly operations are achieved.
Patent Information
- Application Number
- CN202421611905.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The existing circulation tank has many parts and independent parts when disassembling and assembling lenses, resulting in ineffective disassembly and assembly, especially difficult to operate in a small space with the pool window.
A low-light path flow cell is designed, and its pool window assembly and lens are integrated structures. It is connected by the cylinder and threaded column of the pool window assembly to realize the disassembly installation and disassembly of the lens, which is convenient for operation.
Through integrated design, the lens disassembly and assembly process is simplified, the disassembly and assembly efficiency is improved, and the operation complexity is reduced.
Smart Images
Figure CN222887664U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of flow cells, and particularly relates to a low optical path flow cell. Background Art
[0002] A flow cell is a device used in fields such as chemical analysis, environmental monitoring, and biotechnology. It is mainly used for on-line processing and analysis of liquid samples. Its working principle is to pass the sample liquid through a narrow pool, open a cell window on the flow cell, and then set a lens inside the cell window for easy observation and analysis.
[0003] Since the lens is installed inside the cell window, in order to prevent the detection liquid from leaking through the gap between the cell window and the lens, it is necessary to set sealing gaskets on both sides of the lens, and then tighten the lens with a hollow stud. This structure requires more components when installing the lens, and these components are independent of each other. When installing and disassembling, these components need to be disassembled and assembled in sequence. In the narrow space of the cell window, it is difficult to perform the disassembly and assembly operations, so the disassembly and assembly efficiency of the lens is low. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a low optical path flow cell, in which the cell window assembly and the lens are an integral structure during disassembly and assembly, which is convenient for disassembly and assembly and improves the disassembly and assembly efficiency, so as to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A low optical path flow cell, including a cell cover and a cell lid. The cell lid is fixedly connected to one end of the cell cover. Symmetrically distributed cell inlet pipes and cell outlet pipes are arranged in the middle of the cell lid. A cell cavity is arranged in the middle of the cell cover. Step grooves are arranged on both sides of the cell cover. One end of the step groove is communicated with the cell cavity. A cell window assembly is threadedly connected inside the step groove. A lens is snap-fitted in the middle of the cell window assembly. The lens is detachably installed inside the step groove through the cell window assembly.
[0006] Further, a square groove is fixedly connected to one side of the cell lid. One ends of the cell inlet pipes and the cell outlet pipes are both embedded inside the square groove. One ends of the cell inlet pipes and the cell outlet pipes are respectively communicated with both ends of the cell cavity. Screws are symmetrically arranged at one end of the cell lid.
[0007] Further, one-way valves are arranged at the ends of the cell inlet pipes and the cell outlet pipes.
[0008] Further, the pool window assembly includes a cylinder and a threaded post. The cylinder is inserted into the corresponding stepped groove. One end of the cylinder is provided with a connecting ring. One end of the threaded post is provided with a groove that cooperates with the connecting ring. The connecting ring is rotatably connected to the groove at one end of the threaded post. A round hole is provided in the middle of the threaded post, and a cross groove is provided at the other end of the threaded post.
[0009] Further, a ring groove for installing a lens is provided in the middle of the inner wall of the cylinder. Installation grooves are fixedly connected to both ends of the ring groove. A rubber pad is provided at the top of the side wall of the cylinder. The rubber pad communicates with the ring groove. A through hole is provided at the bottom of the side wall of the cylinder. The through hole communicates with the ring groove.
[0010] Further, sliding grooves are symmetrically provided on the side wall of the cylinder. Slide rails are symmetrically and fixedly connected to the inner wall of the pool inlet pipe. The two slide rails are respectively slidably connected to the two sliding grooves.
[0011] Further, a gasket is fixedly connected to one end of the cylinder. Grooves are symmetrically provided on the side wall of the gasket. The two grooves are respectively arranged corresponding to the two sliding grooves.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The lens is installed inside the pool cavity through the pool window assembly. During installation, first snap the lens onto the pool window assembly and then install it inside the pool cavity. When disassembling and assembling, the pool window assembly and the lens are an integrated structure, which is convenient for disassembly and assembly and improves the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic three-dimensional structure of the present utility model Figure 1 ;
[0014] Figure 2 is a schematic three-dimensional structure of the present utility model Figure 2 ;
[0015] Figure 3 is a front cross-sectional view of the present utility model;
[0016] Figure 4 is of the present utility model Figure 3 a cross-sectional view taken along the A-A plane in;
[0017] Figure 5 is a schematic three-dimensional structure diagram of the pool window assembly of the present utility model.
[0018] In the drawings, the list of components represented by each reference numeral is as follows:
[0019] 1. Cell cover; 11. Step groove; 12. Slide rail; 13. Cell cavity; 2. Cell lid; 21. Square groove; 22. Screw; 3. Cell inlet pipe; 31. Check valve; 4. Cell outlet pipe; 5. Cell window assembly; 51. Cylinder; 52. Threaded post; 521. Round hole; 522. Cross slot; 53. Connecting ring; 54. Ring groove; 55. Installation groove; 56. Rubber pad; 57. Through hole; 58. Slide groove; 59. Spacer; 510. Groove; 6. Lens. Detailed implementation mode
[0020] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the scope of protection specifically claimed by the present utility model.
[0021] As Figure 1 、 2 As shown in Figures 3 and 5, a low optical path flow cell includes a cell cover 1 and a cell lid 2. The cell lid 2 is fixedly connected to one end of the cell cover 1. Symmetrically distributed cell inlet pipe 3 and cell outlet pipe 4 are provided in the middle of the cell lid 2. A cell cavity 13 is provided in the middle of the cell cover 1. Step grooves 11 are provided on both sides of the cell cover 1. One end of the step groove 11 communicates with the cell cavity 13. A cell window assembly 5 is threadedly connected inside the step groove 11. A lens 6 is snap-fitted in the middle of the cell window assembly 5. The lens 6 is detachably installed inside the step groove 11 through the cell window assembly 5. A square groove 21 is fixedly connected to one side of the cell lid 2. One ends of the cell inlet pipe 3 and the cell outlet pipe 4 are both embedded inside the square groove 21. One ends of the cell inlet pipe 3 and the cell outlet pipe 4 are respectively communicated with both ends of the cell cavity 13. Screws 22 are symmetrically provided at one end of the cell lid 2. Check valves 31 are provided at the ends of the cell inlet pipe 3 and the cell outlet pipe 4.
[0022] According to the above structure, when in use, the solution to be detected is sent into the cell cavity 13 through the cell inlet pipe 3 and then flows out through the cell outlet pipe 4. During detection, laser light enters from one of the cell window assemblies 5 and exits from the other cell window assembly 5. The lens 6 is installed inside the cell cavity 13 through the cell window assembly 5. During installation, first snap the lens 6 onto the cell window assembly 5 and then install it inside the cell cavity 13. When installing, the cell window assembly 5 and the lens 6 are an integral structure, which is convenient for disassembly and assembly and improves the disassembly and assembly efficiency.
[0023] As Figure 2 、 4As shown in FIGS. 5, the pool window assembly 5 includes a cylinder 51 and a threaded post 52. The cylinder 51 is inserted into the corresponding stepped groove 11. One end of the cylinder 51 is provided with a connecting ring 53. One end of the threaded post 52 is provided with a groove that cooperates with the connecting ring 53. The connecting ring 53 is rotatably connected to the groove at one end of the threaded post 52. A circular hole 521 is provided in the middle of the threaded post 52. A cross groove 522 is provided at the other end of the threaded post 52. A ring groove 54 for installing the lens 6 is provided in the middle of the inner wall of the cylinder 51. Installation grooves 55 are fixedly connected to both ends of the ring groove 54. A rubber pad 56 is provided at the top of the side wall of the cylinder 51. The rubber pad 56 communicates with the ring groove 54. A through hole 57 is provided at the bottom of the side wall of the cylinder 51. The through hole 57 communicates with the ring groove 54.
[0024] According to the above structure, during installation, first insert the lens 6 into the inside of the ring groove 54 through the rubber pad 56. The installation groove 55 serves as a seal. Then insert the cylinder 51 into the stepped groove 11. Then use a screwdriver to turn the threaded post 52 to press the cylinder 51 tightly inside the stepped groove 11. During disassembly, simply turn the threaded post 52 with a screwdriver to remove the pool window assembly 5 and the lens 6 together from the stepped groove 11. The disassembly and assembly are convenient. After the pool window assembly 5 and the lens 6 are removed, then use a thimble to push the lens 6 out of the ring groove 54 through the through hole 57.
[0025] As Figure 5 shown, a gasket 59 is fixedly connected to one end of the cylinder 51. Grooves 510 are symmetrically provided on the side wall of the gasket 59. The two grooves 510 are respectively arranged corresponding to the two sliding grooves 58.
[0026] According to the above structure, when the threaded post 52 is tightened, the gasket 59 is pressed between one end of the cylinder 51 and one end of the stepped groove 11, serving as a seal to prevent the detection liquid from entering between the side wall of the cylinder 51 and the side wall of the stepped groove 11.
[0027] As Figure 2 and 5 shown, sliding grooves 58 are symmetrically provided on the side wall of the cylinder 51. Slide rails 12 are symmetrically and fixedly connected to the inner wall of the pool inlet pipe 3. The two slide rails 12 are respectively slidably connected to the inside of the two sliding grooves 58.
[0028] According to the above structure, during installation, the two slide rails 12 are respectively slidably connected to the inside of the two sliding grooves 58. When turning the threaded post 52, it prevents the cylinder 51 from rotating and prevents the end of the gasket 59 from rubbing against the end of the stepped groove 11.
[0029] The working principle of the present utility model is as follows: When in use, the solution to be detected is sent into the interior of the cell cavity 13 through the cell inlet pipe 3 and then flows out through the cell outlet pipe 4. During detection, the laser is incident from one of the cell window assemblies 5 and exits from the other cell window assembly 5. The lens 6 is installed inside the cell cavity 13 through the cell window assembly 5. During installation, first, the lens 6 is snapped onto the cell window assembly 5 and then installed inside the cell cavity 13. When installing, the cell window assembly 5 and the lens 6 are an integral structure, which is convenient for disassembly and assembly and improves the disassembly and assembly efficiency. During installation, first, the lens 6 is inserted into the interior of the annular groove 54 through the rubber gasket 56. The installation groove 55 plays a sealing role. Then, the cylinder 51 is inserted into the stepped groove 11. Then, a screwdriver is used to turn the threaded post 52 to press the cylinder 51 tightly inside the stepped groove 11. During disassembly, the cell window assembly 5 and the lens 6 can be taken out of the stepped groove 11 together by turning the threaded post 52 with a screwdriver. The disassembly and assembly are convenient. After the cell window assembly 5 and the lens 6 are taken out, the lens 6 can be pushed out of the annular groove 54 through the through hole 57 with a thimble. When the threaded post 52 is tightened, the gasket 59 is pressed between one end of the cylinder 51 and one end of the stepped groove 11, playing a sealing role to prevent the detection liquid from entering between the side wall of the cylinder 51 and the side wall of the stepped groove 11. During installation, the two slide rails 12 are respectively slidably connected inside the two sliding grooves 58. When turning the threaded post 52, the rotation of the cylinder 51 is avoided to prevent the end of the gasket 59 from rubbing against the end of the stepped groove 11.
[0030] The above is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.
Claims
1. A low light path flow cell, comprising a cell cover (1) and a cell lid (2), characterized in that: The pool cover (2) is fixedly connected to one end of the pool cover (1); a symmetrically distributed pool inlet pipe (3) and a pool outlet pipe (4) are arranged in the middle of the pool cover (2); a pool cavity (13) is arranged in the middle of the pool cover (1); stepped grooves (11) are arranged on both sides of the pool cover (1); one end of the stepped groove (11) is connected to the pool cavity (13); a pool window assembly (5) is connected to the inner thread of the stepped groove (11); a lens (6) is snap-fitted to the middle of the pool window assembly (5); and the lens (6) is detachably mounted inside the stepped groove (11) through the pool window assembly (5).
2. A low optical path flow cell according to claim 1, characterized in that: A square groove (21) is fixedly connected to one side of the pool cover (2); one end of the pool inlet pipe (3) and the pool outlet pipe (4) are both embedded in the square groove (21); one end of the pool inlet pipe (3) and the pool outlet pipe (4) are respectively connected to two ends of the pool cavity (13); and screws (22) are symmetrically arranged at one end of the pool cover (2).
3. A low optical path flow cell according to claim 2, characterized in that: One-way valves (31) are provided at the ends of the pool inlet pipe (3) and the ends of the pool outlet pipe (4).
4. A low optical path flow cell according to claim 3, characterized in that: The pool window assembly (5) comprises a cylinder (51) and a threaded column (52); the cylinder (51) is inserted into the interior of a corresponding stepped groove (11); a connecting ring (53) is provided at one end of the cylinder (51); a groove matching the connecting ring (53) is provided at one end of the threaded column (52); the connecting ring (53) is rotatably connected in the groove at one end of the threaded column (52); a circular hole (521) is provided in the middle of the threaded column (52); and a cross groove (522) is provided at the other end of the threaded column (52).
5. A low optical path flow cell according to claim 4, characterized in that: An annular groove (54) for mounting a lens (6) is provided in the middle of the inner wall of the cylinder (51), and mounting grooves (55) are fixedly connected to both ends of the annular groove (54). A rubber pad (56) is provided at the top of the side wall of the cylinder (51), and the rubber pad (56) is connected to the annular groove (54). A through hole (57) is provided at the bottom of the side wall of the cylinder (51), and the through hole (57) is connected to the annular groove (54).
6. A low optical path flow cell according to claim 5, characterized in that: The side wall of the cylinder (51) is symmetrically provided with slide grooves (58), the inner wall of the pool inlet pipe (3) is symmetrically fixedly connected with slide rails (12), and the two slide rails (12) are respectively slidably connected inside the two slide grooves (58).
7. A low optical path flow cell according to claim 6, characterized in that: A gasket (59) is fixedly connected to one end of the cylinder (51), and grooves (510) are symmetrically arranged on the side wall of the gasket (59), and the two grooves (510) are respectively arranged corresponding to the two slide grooves (58).