High-capacity separating funnel
By introducing a mixing component into a large-capacity separatory funnel, and utilizing the fan-shaped design of the stirring blades and the convex-groove structure, the problem of cumbersome operation in large-capacity operations using traditional separatory funnels is solved. This achieves efficient mixing and rapid dissolution of solute and solvent, improving experimental convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BIRDOTECH
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional separatory funnels are cumbersome to operate when handling more than 1L of solute and solvent, especially during shaking and venting.
A large-capacity separating funnel was designed, equipped with a mixing assembly including first and second bevel gears, stirring blades, stirring rods, and a motor. The fan-shaped design, protrusions, and grooves of the stirring blades enhance liquid turbulence and shear force, while the scraper removes buildup on the inner wall of the container, thereby improving mixing efficiency.
It achieves uniform contact between solvent and solute, reduces manual operation, improves mixing efficiency and experimental convenience, promotes rapid dissolution and transfer of solute, and reduces manpower consumption.
Smart Images

Figure CN224221375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of separating funnels, and in particular to a large-capacity separating funnel. Background Technology
[0002] A separatory funnel is a glass laboratory instrument consisting of a funnel body and a lid covering the top of the funnel body. A three-way piston is installed at the bottom of the funnel body, with the two ends of the piston connected to two lower tubes respectively.
[0003] When using a separatory funnel for extraction, it is necessary to perform a shaking and venting operation. For laboratory-level extraction reactions, a 1L separatory funnel is generally sufficient. However, when the total amount of solute and solvent exceeds 1L, a 2L or larger separatory funnel is required, such as 2L, 3L, 5L, or 10L. In this case, shaking and venting is very inconvenient for the operator.
[0004] Therefore, a large-capacity separating funnel is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a large-capacity separating funnel to solve the above problems, thereby improving the cumbersome operation of traditional separating funnels, such as shaking and venting.
[0006] The present invention achieves the above objectives through the following technical solution: a large-capacity separating funnel, comprising: a separating funnel body and a piston valve disposed at its outlet end;
[0007] A mixing component, which is disposed in the body of the separating funnel and is capable of multi-directional agitation of the liquid;
[0008] The mixing component includes a first bevel gear disposed in the body of the separating funnel, a second bevel gear meshing with the lower part of the first bevel gear, and a stirring blade fixedly connected to one side of the first bevel gear by a connecting rod.
[0009] Preferably, the mixing assembly further includes a sleeve disposed in the separatory funnel body. A stirring rod is fixedly connected to the inside of the sleeve via a bearing. A motor is fixedly connected to the upper end of the stirring rod, and the motor is disposed above the separatory funnel body. A connecting sleeve is fixedly connected to the lower end of the stirring rod. The side of the connecting sleeve is fixedly connected to the first bevel gear via a bearing. By setting the sleeve, the stirring rod can be limited and prevented from falling. By setting the stirring rod, it is convenient for the operator to drive the first bevel gear to rotate via the connecting sleeve, thereby expanding the mixing range.
[0010] Preferably, two sleeves are provided and evenly distributed on the upper and lower inner sides of the separating funnel body, wherein the lower end of the lower sleeve is fixedly connected to the inner wall of the separating funnel body, and the second bevel gear is fixedly connected to the upper inner side of this sleeve.
[0011] Preferably, the stirring blade is fan-shaped, and the curvature of the edge of the stirring blade is consistent with that of the separating funnel body. Through the above design, the contact effect of the stirring blade with the solvent can be improved, and the mixing range can be increased.
[0012] Preferably, a protrusion is provided on one side of the stirring blade, the protrusion being tapered, and a groove is provided on the other side of the stirring blade, the groove being on the same axis as the protrusion. By providing the protrusion and the groove, when the stirring blade agitates the multiphase liquid, the flow of the fluid around the stirring blade is more disturbed, thereby disrupting the laminar flow state of the liquid, promoting the rapid dissolution and transfer of the solute, and also increasing the shear force of the fluid, effectively improving the mixing efficiency.
[0013] Preferably, the inner wall of the groove is provided with an opening that extends to the conical tip of the protrusion. With the above design, when the stirring blade rotates, the high-viscosity solution entering the groove can be squeezed and broken through the opening, thereby improving the mixing quality of the solution.
[0014] Preferably, a scraper is provided on the edge of the stirring blade surface. The scraper is made of silicone and its curvature is consistent with the fan-shaped edge of the stirring blade. The scraper is provided on the edge of the stirring blade surface, which can remove the accumulation on the inner wall of the container, reduce the accumulation of solid or viscous substances, and at the same time, it can also crush the solid substances in the multiphase liquid, thereby improving the fusion effect between liquids.
[0015] The beneficial effects of this utility model are:
[0016] 1. By setting up a mixing component, the contact between the solvent and solute can be more uniform and efficient when personnel use the separatory funnel for extraction, thereby accelerating the transfer of solute and reducing the manpower required for large-volume extraction, thus improving the convenience of the experiment.
[0017] 2. By setting protrusions and grooves on the surface of the stirring blades, the flow of the fluid around the stirring blades is more strongly disturbed when the stirring blades agitate the multiphase liquid, thereby disrupting the laminar flow state of the liquid, promoting the rapid dissolution and transfer of solutes, and increasing the shear force of the fluid, effectively improving the mixing efficiency. At the same time, the scraper set on the edge of the stirring blade surface can remove the accumulation on the inner wall of the container, reduce the accumulation of solid or viscous substances, and also crush the solid substances in the multiphase liquid, improving the fusion effect between liquids. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the separatory funnel body of this utility model;
[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A;
[0021] Figure 4 This is a schematic diagram of the front and rear structure of the stirring blade of this utility model.
[0022] In the figure: 1. Separating funnel body; 2. Piston valve; 3. Mixing assembly; 301. Sleeve; 302. Stirring rod; 303. Second bevel gear; 304. Connecting sleeve; 305. First bevel gear; 306. Stirring blade; 307. Scraper; 308. Groove; 309. Protrusion. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] In practical implementation: such as Figure 1-4 As shown, a large-capacity separating funnel includes: a separating funnel body 1 and a piston valve 2 disposed at its outlet end;
[0025] The steps of solution extraction are as follows: Before extraction, the liquid containing the target substance and the extraction solvent need to be prepared separately. Then, the liquid to be extracted and the extraction solvent are added to the separatory funnel body 1 through the inlet pipe on the upper side of the separatory funnel body 1 in a certain ratio. Then, the inlet pipe is closed and the separatory funnel body 1 is sealed. Then, the two liquids are mixed using the mixing component 3. When mixing multiphase solutions, the liquid in the separatory funnel body 1 may generate gas. At this time, the piston valve 2 needs to be opened to release the pressure inside the separatory funnel body 1. By releasing the gas, the gas generated by the solvent during shaking can be prevented from causing the separatory funnel body 1 to break or leak. After stirring, the separatory funnel body 1 is allowed to stand and wait for the two liquids to separate into layers. After standing for a sufficient time, the two liquids will be clearly separated into layers. The lower layer liquid can be released by opening the piston valve 2 at the bottom of the separatory funnel body 1, and the upper layer liquid can be poured out through the top opening.
[0026] Mixing component 3 is disposed in the body 1 of the separating funnel and is capable of stirring the liquid in multiple directions;
[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the mixing component 3 includes a first bevel gear 305 disposed in the separating funnel body 1, a second bevel gear 303 meshing with the lower part of the first bevel gear 305, and a stirring blade 306 fixedly connected to one side of the first bevel gear 305 via a connecting rod; the mixing component 3 also includes a sleeve 301 disposed in the separating funnel body 1, a stirring rod 302 fixedly connected inside the sleeve 301 via a bearing, a motor 310 fixedly connected to the upper end of the stirring rod 302, the motor 310 being disposed above the separating funnel body 1, a connecting sleeve 304 fixedly connected to the lower end of the stirring rod 302, and the side of the connecting sleeve 304 being fixedly connected to the first bevel gear 305 via a bearing; two sleeves 301 are provided and evenly distributed to the upper and lower inner sides of the separating funnel body 1, wherein the lower end of the lower sleeve 301 is fixedly connected to the inner wall of the separating funnel body 1, and the second bevel gear 303 is fixedly connected to the upper inner side of this sleeve 301;
[0028] When extraction of the solution is required, first open the inlet pipe on the upper side of the separatory funnel body 1, and then place the solution into the separatory funnel body 1. After the solution is placed into the separatory funnel body 1, the operator can drive the stirring rod 302 to rotate at a constant speed through the motor 310. At this time, the connecting sleeve 304 at the lower end of the stirring rod 302 drives the first bevel gear 305 to rotate. Since the lower part of the first bevel gear 305 meshes with the second bevel gear 303, the first bevel gear 305 will be meshed with the second bevel gear 303 and rotate on its own axis while revolving around the first bevel gear 305. At this time, the connecting rod of the first bevel gear 305 will drive the stirring blade 306 to rotate. Since the stirring blade 306 is fan-shaped and its curvature is consistent with the separatory funnel body 1, the stirring blade 306 can rotate in the separatory funnel body 1 and stir the solution, so that the multiphase solution can be mixed evenly.
[0029] It should be noted that the surfaces of the first bevel gear 305 and the second bevel gear 303 are coated with a coating made of polytetrafluoroethylene. Polytetrafluoroethylene has extremely high resistance to almost all chemical solvents and will not react with solvents. Therefore, its application in the separatory funnel body 1 will not have any impact on solvent extraction.
[0030] like Figure 4As shown, the stirring blade 306 has a fan-shaped design, and the curvature of the edge of the stirring blade 306 is consistent with that of the separatory funnel body 1; a protrusion 309 is provided on one side of the stirring blade 306, and the protrusion 309 has a conical design; a groove 308 is provided on the other side of the stirring blade 306, and the groove 308 and the protrusion 309 are on the same axis; an opening is provided on the inner wall of the groove 308, and the opening extends to the conical tip of the protrusion 309;
[0031] When the stirring blade 306 rotates, the protrusions 309 on its surface can increase the tangential velocity of the disturbance and liquid flow, thereby improving the mixing effect of the fluid. As for the groove 308 on its other side, it can guide the solution into its interior when in contact with the solution, and allow some high-viscosity solutions to be squeezed and broken through the opening, thereby improving the mixing quality of the solution and promoting the extraction efficiency of the solution.
[0032] A scraper 307 is provided on the edge of the surface of the stirring blade 306. The scraper 307 is made of silicone and the curvature of the scraper 307 is consistent with the fan-shaped edge of the stirring blade 306.
[0033] The scraper 307 is located on the edge of the surface of the stirring blade 306. It can remove the accumulation on the inner wall of the container, reduce the accumulation of solid or viscous substances, and also crush the solid substances in the multiphase liquid to improve the mixing effect between liquids.
[0034] Working principle: In actual use, the operator first places the solution into the separatory funnel body 1, and rotates the stirring rod 302 by the motor 310. At this time, the connecting sleeve 304 at the lower end of the stirring rod 302 drives the first bevel gear 305 to rotate. Since the lower part of the first bevel gear 305 meshes with the second bevel gear 303, the first bevel gear 305 will be meshed with and rotate by the second bevel gear 303 while revolving around the first bevel gear 305. At this time, the connecting rod of the first bevel gear 305 will drive the stirring blade 306 to rotate. Since the stirring blade 306 is a fan-shaped blade... The shape and curvature of the stirring blade 306 are consistent with the body 1 of the separating funnel, so the stirring blade 306 can rotate in the body 1 of the separating funnel and agitate the solution. When the stirring blade 306 rotates, the protrusions 309 on its surface can increase the turbulence and tangential velocity of the liquid flow, thereby improving the mixing effect of the fluid. As for the groove 308 on its other side, it can guide the solution into its interior when in contact with the solution, and make some high viscosity solutions squeezed and broken through the opening, thereby improving the mixing quality of the solution and promoting the extraction efficiency of the solution.
[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A bulk separatory funnel characterized by, Include: Liquid separation funnel body (1) and piston valve (2) arranged at the liquid outlet end thereof; The mixing assembly (3) is arranged in the liquid separation funnel body (1) and can be multi-directionally agitated. Wherein, the mixing assembly (3) includes a first bevel gear (305) arranged in the liquid separation funnel body (1), the lower side of the first bevel gear (305) is engagedly connected with a second bevel gear (303), and the side of the first bevel gear (305) is fixedly connected with a stirring blade (306) through a connecting rod.
2. A bulk dispensing funnel according to claim 1, wherein: The mixing assembly (3) further includes a sleeve (301) arranged in the liquid separation funnel body (1), the inside of the sleeve (301) is fixedly connected with a stirring rod (302) through a bearing, the upper end of the stirring rod (302) is fixedly connected with a motor (310), the motor (310) is arranged above the liquid separation funnel body (1), the lower end of the stirring rod (302) is fixedly connected with a connecting sleeve (304), and the side of the connecting sleeve (304) is fixedly connected with the first bevel gear (305) through a bearing.
3. A bulk dispensing funnel according to claim 2, wherein: The sleeve (301) is arranged in two and uniformly distributed to the upper and lower inside of the liquid separation funnel body (1), wherein the lower end of the lower sleeve (301) is fixedly connected with the inner wall of the liquid separation funnel body (1), and the second bevel gear (303) is fixedly connected to the inner upper side of the sleeve (301).
4. A bulk dispensing funnel according to claim 1, wherein: The stirring blade (306) is designed in a fan shape, and the edge curvature of the stirring blade (306) is consistent with the liquid separation funnel body (1).
5. A bulk dispensing funnel according to claim 1, wherein: The side of the stirring blade (306) is provided with a convex point (309), the convex point (309) is designed in a conical shape, the other side of the stirring blade (306) is provided with a groove (308), and the groove (308) and the convex point (309) are on the same axis.
6. A bulk dispensing funnel according to claim 5, wherein: The inner wall of the groove (308) is provided with a through hole, and the through hole penetrates the conical tip of the convex point (309).
7. A bulk dispensing funnel according to claim 1, wherein: The edge of the surface of the stirring blade (306) is provided with a scraping strip (307), the material of the scraping strip (307) is silica gel, and the curvature of the scraping strip (307) is consistent with the fan-shaped edge of the stirring blade (306).