Cuvette capable of eliminating bubbles
By introducing a pouring box and a diverter trough structure into the cuvette, the problem of bubbles generated when the test solution is poured is solved, achieving higher experimental accuracy and stability.
Patent Information
- Application Number
- CN202422435549.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-09
AI Technical Summary
When pouring the test solution into the cuvette, pouring too quickly may cause air to be brought into the liquid to form bubbles, affecting light transmission and the accuracy of experimental results.
A cuvette structure including a pouring box, a support block and a diverter trough was designed. The flow rate was restricted by the liquid outlet of the pouring box, and the support block and the diverter trough diverted the solution, thereby reducing the contact area and flow velocity between the solution to be tested and the air, and reducing the possibility of bubble generation.
It effectively reduces the possibility of bubbles in the test solution in the cuvette, improves the accuracy and stability of the experimental results, and reduces the risk of solution spillage and shaking.
Smart Images
Figure CN223312083U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cuvettes, and in particular to a cuvette for eliminating bubbles. Background Art
[0002] Cuvettes, also known as absorption cells or sample cells, are commonly used in spectral analysis instruments in laboratories. They are primarily used to hold reference solutions or sample solutions. They are widely used in spectral analysis instruments such as spectrophotometers, hemoglobin analyzers, and particle size analyzers. Cuvettes are typically rectangular in shape, with the bottom and sides made of specially treated frosted glass, while the other two sides feature transparent surfaces made of optical glass. These transparent surfaces are manufactured through processes such as fusion, high-temperature sintering of glass powder, or gluing to ensure smooth passage of light.
[0003] Currently, when pouring a solution to be tested into a cuvette, the solution to be tested is generally poured directly into the cuvette.
[0004] However, if the pouring speed is too fast, the contact surface between the test solution and the air will expand rapidly, which may cause air to be drawn into the liquid, forming bubbles that adhere to the inner wall of the cuvette. The presence of these bubbles may interfere with the transmission of light, affecting the accuracy of the observation of the test solution inside the cuvette, and thus affecting the experimental results. Utility Model Content
[0005] In order to reduce the possibility of bubbles forming in the solution to be tested inside the cuvette, the present application provides a cuvette for eliminating bubbles.
[0006] The present application provides a cuvette for eliminating bubbles using the following technical solution:
[0007] A bubble-eliminating cuvette, comprising:
[0008] The cuvette body is used to place the solution to be tested;
[0009] A pouring box is movably connected to the opening of the cuvette body, the pouring box is provided with a liquid inlet for pouring the test solution, the end of the pouring box is provided with a liquid outlet for the test solution to flow out, and the liquid outlet is used to limit the flow rate of the test solution;
[0010] The support block is mounted on the inner wall of the frosted glass of the cuvette body and is used to support the pouring box and divert the solution to be tested flowing out of the liquid outlet.
[0011] Optionally, a fixed shaft is provided at a position on the top of the cuvette body away from the support block, a connecting block rotatable around the axis of the fixed shaft is provided on the outer circumference of the fixed shaft, and the dumping box and the connecting block are slidably matched along the length direction of the dumping box.
[0012] Optionally, a placement rack for accommodating the pouring box is provided on the outer side of the frosted glass of the cuvette body.
[0013] Optionally, the placement rack includes:
[0014] A placement plate is installed on the outer side of the frosted glass of the cuvette body away from the supporting block, and is used to support the pouring box;
[0015] A limiting strip is mounted on the placement plate and is used to limit the tipping box placed on the placement plate.
[0016] Optionally, the bottom side of the liquid outlet is used to contact the inner wall of the frosted glass of the cuvette body, and the bottom side of the liquid outlet is provided with a plurality of flow limiting holes along the length direction of the liquid outlet for limiting the flow of the solution to be tested.
[0017] Optionally, a converging trough for converging the solution to be tested is provided on the top of the support block, and a plurality of diversion troughs are provided on the inner wall of the converging trough in a direction close to the bottom of the cuvette body, and the plurality of diversion troughs are distributed along the length direction of the support block.
[0018] Optionally, the plurality of diversion grooves are distributed in a fan shape, and the tops of the plurality of diversion grooves are close to each other, and the bottoms of the plurality of flow grooves are far away from each other.
[0019] Optionally, a sealing plate is movably connected to the liquid outlet.
[0020] Optionally, the sealing plate is slidably fitted along the length direction of the pouring box.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. When pouring the test solution into the cuvette body, rotate and slide the pouring box, place the end of the pouring box close to the liquid outlet on the support block, support the pouring with the support block and the cuvette body, and tilt the liquid outlet of the pouring box downward, so that the bottom side of the liquid outlet contacts the frosted glass inner wall of the cuvette body, so as to reduce the contact area between the test solution and the air and reduce the generation of bubbles.
[0023] When pouring the test solution into the pouring box, the sealing plate is opened and the test solution is poured directly into the pouring box. The pouring box temporarily stores the test solution. Under the action of its own gravity, the test solution inside the pouring box flows through the flow restriction hole at the liquid outlet to the inner wall of the cuvette body. During the flow process, the test solution is slowed down by the liquid outlet and the flow of the test solution out of the liquid outlet is restricted. At the same time, the flow restriction hole further diverts the test solution, thereby facilitating the test solution to flow along the inner wall of the cuvette body to the converging groove on the support block, thereby reducing the possibility of bubbles in the test solution.
[0024] The solution to be tested inside the converging trough flows to the bottom of the cuvette body through the diverter trough. During the flow of the solution to be tested inside the diverter trough, the flow speed of the solution to be tested is further slowed down, and the possibility of bubbles generated inside the solution to be tested is reduced. At the same time, the diverter trough further reduces the contact area between the solution to be tested and the air, further reducing the generation of bubbles.
[0025] When the pouring box needs to be stored, the cover is slid to cover the liquid inlet of the pouring box. The pouring box is rotated and slid so that the end of the pouring box away from the liquid outlet contacts the placement plate. The placement plate supports and positions the pouring box, improving its stability. At the same time, the limit bar reduces the amplitude of the pouring box shaking when moving the cuvette, further improving the placement stability of the pouring box. At the same time, the cover protects the liquid outlet, reducing the possibility of spilling residual test solution. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic diagram of the pouring box of an embodiment of the present application pouring the solution to be tested.
[0027] Figure 2 It is a schematic diagram of the storage state of the dumping box of an embodiment of the present application.
[0028] Figure 3 It is a schematic diagram showing the relative positions of the cuvette body and the support block in the embodiment of the present application.
[0029] Figure 4 It is a schematic diagram of the dumping box structure in the embodiment of the present application.
[0030] Figure 5 yes Figure 3 Enlarged schematic diagram of part A.
[0031] Figure 6 yes Figure 4 Schematic diagram of the enlarged portion B.
[0032] Description of reference numerals:
[0033] 1. Cuvette body; 11. Fixed axis; 12. Connecting block; 2. Tipping box; 21. Liquid inlet; 211. Sealing plate; 22. Liquid outlet; 221. Flow limiting hole; 3. Support block; 31. Converging trough; 32. Diverting trough; 4. Placement rack; 41. Placement plate; 42. Limiting strip. DETAILED DESCRIPTION
[0034] The following is combined with Figures 1-6 This application is described in further detail.
[0035] The embodiment of the present application discloses a cuvette for eliminating bubbles.
[0036] A bubble-eliminating cuvette includes a cuvette body 1, a pouring box 2, and a support block 3. The cuvette body 1 is used to place a solution to be tested. The pouring box 2 is movably connected to the opening of the cuvette body 1. The pouring box 2 is provided with a liquid inlet 21 for pouring the solution to be tested, and the end of the pouring box 2 is provided with a liquid outlet 22 for the solution to be tested to flow out. The liquid outlet 22 is used to limit the flow rate of the solution to be tested. The support block 3 is mounted on the inner wall of the frosted glass of the cuvette body 1, and is used to support the pouring box 2 and divert the solution to be tested flowing out of the liquid outlet 22.
[0037] When the test solution needs to be poured into the cuvette body 1, the end of the pouring box 2 is placed on the top of the support block 3, and the pouring box 2 is supported by the support block 3. Then, the test solution is poured into the pouring box 2 through the liquid inlet 21 for temporary storage. The test liquid moves inside the pouring box 2 under the action of its own gravity, and the pouring box 2 slows down the speed at which the test liquid flows into the cuvette body 1. The test solution is then caused to flow onto the support block 3 through the liquid outlet 22. The test solution flows along the side wall of the support block 3 to the bottom of the cuvette body 1, reducing the possibility of air entering the test solution and, in turn, reducing the possibility of bubbles forming in the test solution. At the same time, the liquid outlet 22 limits the flow of the test solution flowing out of the liquid outlet 22, making the test solution flow more smoothly, further reducing the possibility of bubbles forming in the test solution and reducing the possibility of bubbles forming in the cuvette body 1.
[0038] A fixed shaft 11 is fixedly installed at a position on the top of the cuvette body 1 away from the support block 3. A connecting block 12 that can rotate around the axis of the fixed shaft 11 is provided on the outer circumference of the fixed shaft 11. The dumping box 2 and the connecting block 12 slide together along the length direction of the dumping box 2.
[0039] When the solution to be tested needs to be poured into the inside of the cuvette body 1, the pouring box 2 is rotated and slid so that the end of the pouring box 2 close to the liquid outlet 22 is placed on the support block 3. At this time, the pouring box 2 is tilted as a whole, and one end of the pouring box 2 close to the liquid outlet 22 is lower than the other end of the pouring box 2, so as to facilitate the solution to be tested to flow out of the liquid outlet 22.
[0040] A placement rack 4 for accommodating the pouring box 2 is provided on the frosted glass outer side of the cuvette body 1. When the pouring box 2 is not needed, the pouring box 2 is rotated and slid so that the end of the pouring box 2 away from the liquid outlet 22 is placed on the placement rack 4. The pouring box 2 is limited by the placement rack 4, which improves the placement stability of the pouring box 2 and reduces the possibility of the residual test solution inside the pouring box 2 flowing out of the pouring box 2.
[0041] The placement rack 4 includes a placement plate 41 and a limiting bar 42 .
[0042] The placement plate 41 is fixedly mounted on the outer side of the frosted glass of the cuvette body 1 away from the support block 3, and is used to support the pouring box 2. The limiting bar 42 is fixedly mounted on the placement plate 41, and is used to limit the pouring box 2 placed on the placement plate 41.
[0043] When placing the pouring box 2, the end of the pouring box 2 away from the liquid outlet 22 is placed on the placement plate 41 under the action of its own gravity. The placement plate 41 supports the pouring box 2 to improve the placement stability of the pouring box 2.
[0044] The limiting bar 42 is located at the top of the placing plate 41 away from the end of the cuvette body 1. When the dumping box 2 has a tendency to rotate, the limiting bar 42 blocks the dumping box 2, thereby reducing the amplitude of the dumping box 2 shaking when the cuvette is moved.
[0045] A sealing plate 211 is movably connected to the liquid outlet 22 of the pouring box 2. In the embodiment of the present application, the sealing plate 211 slides along the length of the pouring box 2. When it is necessary to pour the test solution into the pouring box 2, the sealing plate 211 is slid to open the liquid inlet 21 to facilitate pouring the test solution into the pouring box 2. When it is not necessary to pour the test solution into the pouring box 2, the sealing plate 211 is slid to cover the liquid outlet 22, thereby reducing the possibility of the test solution in the pouring box 2 spilling out of the pouring box 2 from the liquid outlet 22.
[0046] The bottom side of the liquid outlet 22 is used to contact the inner wall of the frosted glass of the cuvette body 1. The bottom side of the liquid outlet 22 is provided with a plurality of flow limiting holes 221 along the length direction of the liquid outlet 22 for limiting the flow of the solution to be tested.
[0047] The test solution flowing out of the liquid outlet 22 is separated by the plurality of flow-limiting holes 221 , and the test solution is dispersed through the plurality of flow-limiting holes 221 , and the dispersed test solution flows along the inner wall of the cuvette body 1 to the support block 3 .
[0048] The support block 3 and the cuvette body 1 are integrally formed, with the side of the support block 3 near the mounting bracket 4 tilted downward. A concentrating trough 31 is located at the top of the support block 3 to collect the solution to be tested. The inner wall of the concentrating trough 31 is formed with a plurality of diverter troughs 32 along the inner wall of the cuvette body 1, extending toward the bottom. These diverter troughs 32 are distributed along the length of the support block 3 in a fan-shaped arrangement, with the tops of the diverter troughs 32 close together and the bottoms of the diverter troughs spaced apart.
[0049] The solution to be tested flowing out of the liquid outlet 22 flows into the converging trough 31 and is collected by the converging trough 31 . Then, the solution to be tested in the converging trough 31 flows into the diverting trough 32 and flows into the bottom of the cuvette body 1 through the diverting trough 32 .
[0050] The fan-shaped diverter troughs 32 improve the uniformity of the flow of the test solution into the cuvette body 1. At the same time, each diverter trough 32 reduces the flow rate of the test solution. The inclined surface of the inner wall of the diverter trough 32 slows the flow rate of the test solution, further reducing the possibility of bubbles in the test solution. Furthermore, the diverter troughs 32 reduce the impact force of the test solution during flow, further reducing the generation of bubbles.
[0051] The implementation principle of a bubble-eliminating cuvette in an embodiment of the present application is as follows: when pouring the solution to be tested into the inside of the cuvette body 1, the pouring box 2 is rotated and slid, and the end of the pouring box 2 close to the liquid outlet 22 is placed on the support block 3. The pouring is supported by the support block 3 and the cuvette body 1, and the liquid outlet 22 of the pouring box 2 is tilted downward, and the bottom side of the liquid outlet 22 is in contact with the frosted glass inner wall of the cuvette body 1, so as to reduce the contact area between the solution to be tested and the air and reduce the generation of bubbles.
[0052] When pouring the test solution into the pouring box 2, the sealing plate 211 is opened and the test solution is poured directly into the pouring box 2. The test solution is temporarily stored in the pouring box 2. Under the action of its own gravity, the test solution in the pouring box 2 flows from the flow-limiting hole 221 at the liquid outlet 22 to the inner wall of the cuvette body 1. During the flow of the test solution, the flow speed of the test solution is slowed down by the liquid outlet 22, and the flow of the test solution out of the liquid outlet 22 is limited. At the same time, the flow-limiting hole 221 further diverts the test solution, thereby facilitating the test solution to flow along the inner wall of the cuvette body 1 to the converging groove 31 on the support block 3, thereby reducing the possibility of bubbles in the test solution.
[0053] The solution to be tested inside the converging trough 31 flows to the bottom of the cuvette body 1 through the diverter trough 32. During the flow of the solution to be tested inside the diverter trough 32, the flow speed of the solution to be tested is further slowed down, and the possibility of bubbles generated inside the solution to be tested is reduced. At the same time, the diverter trough 32 further reduces the contact area between the solution to be tested and the air, further reducing the generation of bubbles.
[0054] When the pouring box 2 needs to be stored, the sealing plate 211 is slid so that the sealing plate 211 covers the liquid inlet 21 of the pouring box 2, the pouring box 2 is rotated, and the pouring box 2 is slid so that the end of the pouring box 2 away from the liquid outlet 22 contacts the placement plate 41. The placement plate 41 supports and positions the pouring box 2, thereby improving the stability of the pouring box 2. At the same time, the limit bar 42 reduces the amplitude of the pouring box 2 shaking when moving the cuvette, further improving the placement stability of the pouring box 2. At the same time, the sealing plate 211 protects the liquid outlet 22, reducing the possibility of residual test solution spilling out.
[0055] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A bubble-eliminating cuvette, characterized in that: include: A cuvette body (1) is used to place the solution to be tested; A pouring box (2) is movably connected to the opening of the cuvette body (1), the pouring box (2) is provided with a liquid inlet (21) for pouring the solution to be tested, and an end of the pouring box (2) is provided with a liquid outlet (22) for the solution to be tested to flow out, and the liquid outlet (22) is used to limit the flow rate of the solution to be tested; The support block (3) is mounted on the inner wall of the frosted glass of the cuvette body (1) and is used to support the pouring box (2) and to divert the solution to be tested flowing out of the liquid outlet (22).
2. The bubble-eliminating cuvette according to claim 1, characterized in that: A fixed shaft (11) is provided at a position on the top of the cuvette body (1) away from the support block (3); a connecting block (12) that can rotate around the axis of the fixed shaft (11) is provided on the outer circumference of the fixed shaft (11); the pouring box (2) and the connecting block (12) are slidably matched along the length direction of the pouring box (2).
3. The bubble-eliminating cuvette according to claim 1, characterized in that: A placement rack (4) for accommodating the pouring box (2) is provided on the frosted glass outer side of the cuvette body (1).
4. The bubble-eliminating cuvette according to claim 3, characterized in that: The placement rack (4) comprises: A placement plate (41) is mounted on the outer side of the frosted glass of the cuvette body (1) away from the support block (3) and is used to support the pouring box (2); A limiting strip (42) is mounted on the placement plate (41) and is used to limit the position of the pouring box (2) placed on the placement plate (41).
5. The bubble-eliminating cuvette according to claim 1, characterized in that: The bottom side of the liquid outlet (22) is used to contact the inner wall of the frosted glass of the cuvette body (1), and the bottom side of the liquid outlet (22) is provided with a plurality of flow limiting holes (221) along the length direction of the liquid outlet (22) for limiting the flow of the solution to be tested.
6. The bubble-eliminating cuvette according to claim 5, characterized in that: A converging trough (31) for converging the solution to be tested is provided on the top of the support block (3), and a plurality of diversion troughs (32) are provided on the inner wall of the converging trough (31) in a direction close to the bottom of the cuvette body (1), and the plurality of diversion troughs (32) are distributed along the length direction of the support block (3).
7. The bubble-eliminating cuvette according to claim 6, characterized in that: The plurality of diversion grooves (32) are distributed in a fan shape, and the tops of the plurality of diversion grooves (32) are close to each other, while the bottoms of the plurality of flow grooves are far away from each other.
8. The bubble-eliminating cuvette according to claim 1, characterized in that: The liquid outlet (22) is movably connected to a sealing plate (211).
9. The bubble-eliminating cuvette according to claim 8, characterized in that: The sealing plate (211) is slidably fitted along the length direction of the pouring box (2).