Differential refraction flow cell for measuring solution concentration
By designing a compact differential refractive flow cell, combined with magnetic suction cup fixation and photoresistor detection, the problem of large and inconvenient portability is solved, and portability and efficient solution detection are achieved.
Patent Information
- Application Number
- CN202422454536.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The existing detection devices are large in size and are inconvenient to carry with you, resulting in inconvenient solution collection and detection on-site.
A small and lightweight differential refractive flow cell is designed, including an outer shell, a storage mechanism and a rotating shaft. The rear cover is fixed by a magnetic suction cup, combined with a light source and a dual photoresistor to detect the refractive index change of the solution, and is equipped with a rotating shaft and a mixing rod for agitation and mixing of the solution to ensure the detection quality.
It achieves strong portability, complete built-in functions, facilitates on-site solution detection, avoids the influence of bubbles, and ensures detection effect.
Smart Images
Figure CN223259558U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solution concentration measurement, and more particularly to a differential refraction flow cell for measuring solution concentration. Background Art
[0002] A differential refractometer flow cell is a key component widely used in optical measurement and material analysis. It is primarily used to store and mix the liquid being tested, allowing for the measurement of parameters such as refractive index. A differential refractometer detector is a general-purpose detector designed based on the principle of refraction, primarily used to analyze the concentration of solutes in samples.
[0003] Existing detection mechanisms use differential refraction flow cells to store and test test solutions. These devices are mounted inside the cell and utilize the light refraction effect of a differential refractive index detector in conjunction with dual photoresistors for detection. These devices are large and inconvenient to carry around, making them difficult for personnel to carry around, making them inconvenient for on-site solution collection and testing. Therefore, we propose a differential refraction flow cell for measuring solution concentration. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology, meet the actual needs, and provide a differential refractive index flow cell for measuring the concentration of a solution, so as to solve the technical problems that the current detection device is large in size, inconvenient to carry, and inconvenient to use during on-site collection and detection.
[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a differential refractive index flow cell for measuring the concentration of a solution, comprising an outer shell, a storage mechanism and a rotating shaft, a partition being fixed at the inner rear end of the outer shell, a groove being provided at the rear end of the outer shell, and an insertion shaft being rotatably installed in the groove, a console being embedded in one side of the outer shell, and a charging port being provided on the console, and the storage mechanism being plugged into the outer shell.
[0006] When the utility model is used, the external power cord is connected to the charging port for power supply, the light source is started to allow light to pass through the glass tube and the internal detection base liquid, and then the refracted light is detected by the dual photoresistors installed on the lower side resistor board. The basic refraction effect and position detection are achieved through preliminary detection, and then the storage mechanism is pulled outward, and then the thread is turned to separate the back cover, and the collected detection solution is injected into the base liquid in the glass tube. Then, the opening of the glass tube is closed through the back cover, and the storage mechanism with the added solution is reinserted into the outer shell from the insertion port, and is limited by the limit rod, and fixed by the magnetic suction cup to absorb the metal back cover. Then, the light source is started, and the refractive index changes due to the addition of new solution. The position of the refracted light is detected by cooperating with the dual photoresistors on the resistor board to detect the concentration of the solution. The device is compact and lightweight, and is convenient to carry with you. The built-in functions are complete, which is convenient for testing the solution after on-site collection. It is highly portable. After the storage mechanism adds the solution, the end cover is inserted into the groove on the rear side of the outer shell, and the shaft hole is connected to the plug shaft. The motor is started to drive the plug shaft to rotate. The plug shaft drives the rotating shaft to rotate through the linkage shaft. The solution is driven to flow to the front end through the push flow groove on the rotating shaft during the rotation process, and then the solution is stirred and mixed by the rotating mixing rod. The push flow groove pushes the solution to flow to the tail, and then the tail disperses to form a reflux to complete the cycle. The solution guided to the tail is stirred and mixed by the mixing rod. The solution collected in the glass cylinder is mixed through the above operation method, so that the base liquid is mixed with the collected solution to ensure the quality of subsequent detection. At the same time, the solution is mixed by push flow, circulation and tail stirring and mixing to avoid bubbles caused by the chaotic flow of internal liquid, so as to prevent the detection effect from being affected by bubbles.
[0007] Preferably, a motor is fixed to the rear side of the partition, and the output shaft of the motor is connected to the plug shaft, a magnetic suction cup is fixed to the front side of the partition, and the console corresponds to the position of the motor.
[0008] Preferably, an insertion port is provided at the front end of the outer shell, and limiting rods are distributed in a circular array between the inner side of the insertion port and the partition. A light source and a resistor plate are fixed to the upper and lower ends of both sides of the inner side of the outer shell respectively.
[0009] Preferably, the storage mechanism is composed of an end cover, a glass cylinder and a back cover, the back cover is adsorbed on the magnetic chuck, and the glass cylinder is located between the limiting rods after being inserted from the insertion port.
[0010] Preferably, the front end of the glass cylinder is fixed on the end cover, the rear end of the glass cylinder is threadedly installed with a rear cover, and a linkage shaft is rotatably installed in the middle of the end cover through a sealed bearing. The rotating shaft is located in the glass cylinder, and the front end of the rotating shaft is connected to the linkage shaft.
[0011] Preferably, a shaft hole is provided at the front end of the linkage shaft, and the shaft hole is adapted to fit the plug shaft, and the end cover is adapted to fit the groove.
[0012] Preferably, a flow-pushing groove is provided on the outer side of the rotating shaft, a connecting sleeve is fixedly connected to the rear end of the rotating shaft, and mixing rods are distributed in a circular array on the outer side of the connecting sleeve.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. The utility model is designed with an outer shell, which can be pulled out by pulling out the storage mechanism, and then the back cover is separated by rotating the thread to inject the collected detection solution into the base liquid in the glass tube, and then the opening of the glass tube is closed by the back cover, and the storage mechanism with the added solution is reinserted into the outer shell from the insertion port, and is limited by the limit rod, and is fixed by adsorbing the metal back cover by the magnetic suction cup, and then the light source is started. The refractive index changes due to the addition of new solution, and the position of the refracted light is detected by cooperating with the dual photoresistors on the resistor board to detect the concentration of the solution. The device is small and light, easy to carry, and has complete built-in functions, which is convenient for on-site detection of the solution after collection, and is highly portable.
[0015] 2. The utility model also designs a rotating shaft. After the storage mechanism adds the solution, the end cover is inserted into the groove on the rear side of the outer shell, the shaft hole is connected to the plug shaft, the motor is started to drive the plug shaft to rotate, and the plug shaft drives the rotating shaft to rotate through the linkage shaft. The flow-pushing groove on the rotating shaft drives the solution to flow to the front end during the rotation process, and then the solution is stirred and mixed by the rotating mixing rod. The flow-pushing groove pushes the solution to flow to the tail, and then the tail disperses to form a backflow to complete the cycle. The solution guided to the tail is stirred and mixed by the mixing rod. The solution collected in the glass cylinder is mixed through the above operation method, so that the base liquid is mixed with the collected solution to ensure the quality of subsequent detection. At the same time, the solution is mixed by the flow-pushing and circulation combined with the tail stirring and mixing method to avoid bubbles caused by the chaotic flow of internal liquid, and prevent the detection effect from being affected by bubbles. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0017] Figure 2 It is a front cross-sectional schematic diagram of the utility model;
[0018] Figure 3 It is a side cross-sectional schematic diagram of the utility model;
[0019] Figure 4 This is a schematic diagram of the storage mechanism of the present utility model;
[0020] Figure 5 This is a schematic cross-sectional view of the glass cylinder of the present utility model;
[0021] Figure 6 This is a schematic diagram of the linkage shaft structure of the present utility model.
[0022] Explanation of the numbers in the figure: 1. Outer shell; 101. Partition; 102. Limit rod; 103. Insertion port; 104. Motor; 105. Insert shaft; 106. Groove; 107. Magnetic suction cup; 2. Storage mechanism; 201. End cover; 202. Shaft hole; 203. Linkage shaft; 204. Glass cylinder; 205. Back cover; 206. Rotating shaft; 207. Push flow slot; 208. Connecting sleeve; 209. Mixing rod; 3. Control console; 4. Charging port; 5. Light source; 6. Resistor plate. DETAILED DESCRIPTION
[0023] like Figures 1 to 4 As shown, the utility model relates to a differential refractive index flow cell for measuring the concentration of a solution, comprising an outer shell 1, a storage mechanism 2 and a rotating shaft 206, a partition 101 is fixed to the inner rear end of the outer shell 1, a groove 106 is provided at the rear end of the outer shell 1, and an insertion shaft 105 is rotatably installed in the groove 106, a motor 104 is fixed to the rear side of the partition 101, and the output shaft of the motor 104 is connected to the insertion shaft 105, and the insertion shaft 105 is driven to rotate by the motor 104, a magnetic suction cup 107 is fixed to the front side of the partition 101, and the console 3 corresponds to the position of the motor 104, an insertion port 103 is provided at the front end of the outer shell 1, and limiting rods 102 are distributed in a ring array between the inner side of the insertion port 103 and the partition 101, and a light source 5 and a resistor plate 6 are fixed to the upper and lower ends of both sides of the interior of the outer shell 1 respectively.
[0024] like Figures 2 to 6 As shown, the utility model relates to a differential refractive index flow cell for measuring the concentration of a solution, comprising an outer shell 1, a storage mechanism 2 and a rotating shaft 206. A console 3 is embedded and installed on one side of the outer shell 1, and a charging port 4 is provided on the console 3. The storage mechanism 2 is plugged into the outer shell 1. The storage mechanism 2 is composed of an end cover 201, a glass cylinder 204 and a back cover 205. The back cover 205 is adsorbed on the magnetic chuck 107. After the glass cylinder 204 is inserted from the insertion port 103, it is located between the limit rods 102. The front end of the glass cylinder 204 is fixed on the end cover 201. The glass cylinder 204 is fixed on the end cover 201. The rear end of 04 is threadedly installed with a rear cover 205, and the middle of the end cover 201 is rotatably installed with a linkage shaft 203 through a sealed bearing. The rotating shaft 206 is located in the glass tube 204, and the front end of the rotating shaft 206 is connected to the linkage shaft 203. The front end of the linkage shaft 203 is provided with an axial hole 202, and the axial hole 202 is adapted to the plug shaft 105, and the end cover 201 is adapted to the groove 106. A push flow groove 207 is provided on the outside of the rotating shaft 206, and a connecting sleeve 208 is fixed to the rear end of the rotating shaft 206, and mixing rods 209 are distributed in a ring array on the outside of the connecting sleeve 208.
[0025] Working principle: This embodiment provides a differential refraction flow cell for measuring the concentration of a solution. When in use, connect the external power cord to the charging port 4 for power supply, start the light source 5 to allow the light to pass through the glass tube 204 and the internal detection base liquid, and then detect the refracted light through the dual photoresistors installed on the lower side resistor plate 6. The basic refraction effect and position detection are achieved through preliminary detection, and then the storage mechanism 2 is pulled outward, and then the thread is turned to separate the back cover 205, and the collected detection solution is injected into the base liquid in the glass tube 204, and then the opening of the glass tube 204 is closed by the back cover 205, and the storage mechanism 2 after the solution is added is reinserted into the outer shell 1 from the insertion port 103, and the limit The rod 102 is limited and fixed by adsorbing the metal back cover 205 by the magnetic suction cup 107. After the storage mechanism 2 adds the solution, the end cover 201 is inserted into the groove 106 on the rear side of the outer shell 1, and the shaft hole 202 is connected to the plug shaft 105. The motor 104 is started to drive the plug shaft 105 to rotate. The plug shaft 105 drives the rotating shaft 206 to rotate through the linkage shaft 203. The flow groove 207 on the rotating shaft 206 drives the solution to flow to the front end during the rotation process, and then the solution is stirred and mixed by the rotating mixing rod 209. The flow groove 207 pushes the solution to flow to the tail, and then the tail disperses to form a reflux to complete the cycle. The solution guided to the tail is stirred and mixed by the mixing rod 209.
[0026] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.
Claims
1. A differential refractive index flow cell for measuring solution concentration, comprising an outer shell (1), a storage mechanism (2) and a rotating shaft (206), characterized in that: A partition (101) is fixed to the rear end of the outer shell (1), a groove (106) is provided at the rear end of the outer shell (1), and a plug-in shaft (105) is rotatably installed in the groove (106), a console (3) is embedded and installed on one side of the outer shell (1), and a charging port (4) is provided on the console (3), and the storage mechanism (2) is plugged into the outer shell (1).
2. The differential refractive index flow cell for measuring solution concentration according to claim 1, characterized in that: A motor (104) is fixed to the rear side of the partition (101), and the output shaft of the motor (104) is connected to the plug shaft (105). A magnetic chuck (107) is fixed to the front side of the partition (101), and the console (3) corresponds to the position of the motor (104).
3. The differential refractive index flow cell for measuring solution concentration according to claim 2, wherein: An insertion opening (103) is provided at the front end of the outer shell (1), and limiting rods (102) are distributed in a circular array between the inner side of the insertion opening (103) and the partition (101). A light source (5) and a resistor plate (6) are fixed at the upper and lower ends of both sides of the interior of the outer shell (1), respectively.
4. The differential refractive index flow cell for measuring solution concentration according to claim 3, characterized in that: The storage mechanism (2) is composed of an end cover (201), a glass cylinder (204) and a back cover (205); the back cover (205) is adsorbed on a magnetic chuck (107); and the glass cylinder (204) is inserted from an insertion port (103) and is located between the limiting rods (102).
5. The differential refractive index flow cell for measuring solution concentration according to claim 4, characterized in that: The front end of the glass cylinder (204) is fixed on the end cover (201), the rear end of the glass cylinder (204) is threadedly mounted with a rear cover (205), a linkage shaft (203) is rotatably mounted in the middle of the end cover (201) via a sealed bearing, the rotating shaft (206) is located in the glass cylinder (204), and the front end of the rotating shaft (206) is connected to the linkage shaft (203).
6. The differential refractive index flow cell for measuring solution concentration according to claim 5, characterized in that: The front end of the linkage shaft (203) is provided with a shaft hole (202), the shaft hole (202) is adapted to fit the plug shaft (105), and the end cover (201) is adapted to fit the groove (106).
7. The differential refractive index flow cell for measuring solution concentration according to claim 6, characterized in that: A flow-pushing groove (207) is provided on the outer side of the rotating shaft (206), a connecting sleeve (208) is fixedly connected to the rear end of the rotating shaft (206), and mixing rods (209) are distributed in a circular array on the outer side of the connecting sleeve (208).