Water bath reflux device

Abstract

The utility model discloses a water bath reflux device and belongs to the technical field of experimental equipment. The utility model solves the problem in the prior art that the experiment operation is influenced by using an iron stand to fix the condenser pipe. The water bath kettle comprises a water bath kettle body, a reaction container and a condensation pipe, the water bath kettle body comprises at least one heating hole, and a fixing mechanism is detachably connected to the heating hole; the fixing mechanism comprises a supporting cylinder detachably connected with the water bath kettle body, and a first connecting hole and a second connecting hole which are communicated with each other are formed in the supporting cylinder; the fixing mechanism further comprises a connecting sleeve detachably connected with the reaction container, the connecting sleeve is detachably connected with the first connecting hole, one end of the condensation pipe penetrates through the second connecting hole to be detachably connected with the reaction container, and a fixing piece matched with the condensation pipe is arranged in the second connecting hole. Compared with the mode that the condensation pipe and the reaction container are fixed through an iron support, the water bath kettle is simpler in structure, instruments around the water bath kettle cannot be redundant, and the experiment efficiency can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of experimental equipment technology, specifically relating to a water bath reflux device. Background Technology

[0002] Water bath heating and reflux is a common experimental procedure, frequently used in organic synthesis and chemical analysis. It involves heating the reaction system in a constant-temperature water bath and using a reflux device to recover reactant vapors, thereby achieving highly efficient reaction.

[0003] To ensure the safety and efficacy of traditional Chinese medicine (TCM) decoction pieces, routine testing is required during the production process. Reflux hot maceration is a commonly used method. This method involves extracting medicinal components using volatile organic solvents such as ethanol, heating and distilling the extract, and then condensing the distilled volatile solvent back into the extractor. Specifically, the decoction pieces or coarse powder are placed in a round-bottom flask, and solvent is added to submerge the surface of the herbs. After soaking for a certain period, a condenser is installed at the mouth of the flask, and cooling water is connected. The flask is then heated in a water bath, and the reflux extraction is continued for the specified time. The reflux liquid is filtered out, and fresh solvent is added for further reflux. The reflux liquids from each extraction are combined, and the solvent is recovered by distillation to obtain a concentrated solution.

[0004] In existing water bath reflux apparatuses, iron stands are generally used to fix the flask and condenser to complete the water bath heating reflux. However, for porous water baths, if water bath reflux is performed in each hole at the same time, an iron stand needs to be set up around each hole. The iron stand is large, which makes the equipment around the porous water bath cluttered. If you are not careful, you may bump the iron stand, resulting in damage to the experimental equipment and failure of the experiment. Utility Model Content

[0005] To address the problem that existing technologies using iron stands to fix flasks and condensers result in cluttered equipment around porous water baths, affecting experimental operations, this invention provides a water bath reflux device.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A water bath reflux device includes a water bath body, a reaction vessel, and a condenser tube. The water bath body includes at least one heating hole, and a fixing mechanism is detachably connected to the heating hole.

[0008] The fixing mechanism includes a support cylinder that is detachably connected to the water bath body, and the support cylinder is provided with a first connection hole and a second connection hole that are interconnected.

[0009] The fixing mechanism also includes a connecting sleeve that is detachably connected to the reaction vessel. The connecting sleeve is detachably connected to the first connecting hole. One end of the condenser tube passes through the second connecting hole and is detachably connected to the reaction vessel. A fixing component that cooperates with the condenser tube is provided in the second connecting hole.

[0010] By adopting this technical solution, the present invention achieves the connection between the reaction vessel (round-bottom flask, etc.) and the condenser tube through the fixing mechanism. The fixing mechanism itself is detachably connected to the water bath body. Compared with using an iron stand to fix the condenser tube and the reaction vessel, the structure is simpler and will not make the equipment around the water bath cluttered. It is more conducive to the operation of the experimenters and can effectively improve the experimental efficiency.

[0011] Preferably, a connecting ring is provided around the heating hole, and the support cylinder is threadedly connected to the connecting ring.

[0012] With this technical solution, the support cylinder can be detachably connected to the connecting pipe via threads, making operation simple.

[0013] Preferably, the connecting sleeve includes a sleeve with external threads, the sleeve being threadedly connected to the first connecting hole, and the inner surface of the sleeve being provided with a first silicone pad that is interference-fitted with the reaction vessel.

[0014] By adopting this technical solution, a first silicone pad is provided on the inner surface of the sleeve. The elasticity of the silicone pad allows the sleeve to be smoothly fitted onto the end of the reaction vessel.

[0015] Preferably, the inner surface of the first silicone pad is provided with anti-slip texture, and the height of the sleeve is greater than the height of the first connecting hole.

[0016] By adopting this technical solution, the anti-slip texture increases the friction between the first silicone pad and the reaction vessel, allowing the sleeve to rotate directly when connecting it to the first connecting hole by rotating the reaction vessel. Considering that the friction between the first silicone pad and the reaction vessel decreases after a period of use, the height of the sleeve can be greater than the height of the first connecting hole to ensure a smooth connection. That is, after the sleeve is connected, one end of the sleeve is outside the first connecting hole, allowing the sleeve to be directly pinched and rotated to connect it to the first connecting hole.

[0017] Preferably, the second connecting hole includes a first through hole and a second through hole that are interconnected. The first through hole is connected to the first connecting hole. The size of the first through hole matches the size of the condenser tube head, and the size of the second through hole matches the size of the condenser tube body.

[0018] With this technical solution, the condenser tube connector can be directly inserted into the second connection hole and then inserted into the reaction vessel through the first connection hole.

[0019] Preferably, the fixing member includes a second silicone pad disposed in the second through hole, and the second silicone pad is provided with a through groove that mates with the condenser inlet pipe.

[0020] With this technical solution, one end of the condenser tube can be limited to the support cylinder by using a fixing component.

[0021] Preferably, the second silicone pad has anti-slip texture.

[0022] Preferably, the support cylinder has a conical structure and includes a large end and a small end, wherein the large end is detachably connected to the water bath body.

[0023] By adopting this technical solution, the large end can be detachably connected to the water bath body, which can lower the center of the fixing mechanism and prevent tilting.

[0024] Preferably, the support cylinder is a transparent structure.

[0025] With this technical solution, the support cylinder is transparent, which makes it easy to observe the connection between the reaction vessel and the condenser tube, and also allows you to check the remaining liquid in the water bath.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0027] This invention achieves the connection between the reaction vessel (round-bottom flask, etc.) and the condenser tube through a fixing mechanism. The fixing mechanism itself is detachably connected to the water bath body. Compared with using an iron stand to fix the condenser tube and the reaction vessel, the structure is simpler and will not make the equipment around the water bath cluttered. It is more convenient for the experimenter to operate and can effectively improve the experimental efficiency. Attached Figure Description

[0028] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the connection structure of the reaction vessel, condenser tube, and fixing mechanism in this utility model;

[0031] Figure 3 This is a schematic diagram of the connection structure between the reaction vessel and the connecting cylinder in this utility model;

[0032] Wherein: 1-Water bath body, 2-Connecting ring, 3-Supporting cylinder, 4-Condenser tube, 5-Sleeve, 6-Reaction vessel, 7-Second silicone pad, 8-Second through hole, 9-First through hole, 10-First connecting hole, 11-First silicone pad. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] The following is combined with Figures 1-3 This utility model will be described in detail.

[0036] like Figure 1-3 As shown, a water bath reflux device includes a water bath body 1, a reaction vessel 6, and a condenser 4, from which... Figure 1 As can be seen from the above, the water bath body 1 in this embodiment is a 6-hole water bath, and its structure and function are the same as those of the existing multi-hole water bath, so they will not be described in detail here. In this embodiment, the reaction vessel 6 is a single-head round-bottom flask, and the condenser tube 4 is a serpentine condenser tube (the pipes of each connection port are not shown). The water bath body 1 includes 6 heating holes, and each heating hole can be detachably connected to a fixing mechanism.

[0037] The fixing mechanism includes a support cylinder 3 that is threadedly connected to the water bath body 1. The support cylinder 3 is provided with a first connecting hole 10 and a second connecting hole that are interconnected. It should be noted that the axial center line of the first connecting hole 10 and the axial center line of the second connecting hole overlap, so that after the condenser tube 4 is inserted into the second connecting hole, it can directly enter the reaction vessel 6 located in the first connecting hole 10.

[0038] The fixing mechanism also includes a connecting sleeve that is detachably connected to the reaction vessel 6. The connecting sleeve is detachably connected to the first connecting hole 10. One end of the condenser tube 4 passes through the second connecting hole and is detachably connected to the reaction vessel 6. A fixing member that cooperates with the condenser tube 4 is provided in the second connecting hole. The fixing member can limit the condenser tube 4.

[0039] In one embodiment, a connecting ring 2 is fixedly disposed around the heating hole, and the support cylinder 3 is threadedly connected to the connecting ring 2.

[0040] In one embodiment, the connecting sleeve includes a sleeve 5 with external threads, the sleeve 5 being threadedly connected to a first connecting hole 10. The inner surface of the sleeve 5 is provided with a first silicone pad 11 that is interference-fitted with the reaction vessel 6. The inner diameter of the first silicone pad 11 is slightly smaller than the size of the end of the reaction vessel 6, allowing the connecting sleeve to be smoothly fitted onto the end of the reaction vessel 6, forming a shape as shown. Figure 3 The structure shown is illustrated. In other embodiments, the outer diameter of the sleeve 5 on each connecting sleeve is the same, but the inner diameter of the first silicone pad 11 is different to meet the needs of reaction vessels of different sizes.

[0041] In one embodiment, the inner surface of the first silicone pad 11 is provided with anti-slip texture, and the height of the sleeve 5 is greater than the height of the first connecting hole 10. The anti-slip texture increases the friction between the first silicone pad 11 and the reaction vessel 6, so that when the sleeve 5 is rotated to connect with the first connecting hole 10, the reaction vessel 6 can be rotated directly to drive the sleeve to rotate. Considering that the friction decreases due to repeated rotation between the first silicone pad 11 and the reaction vessel after a period of use, the height of the sleeve 5 can be greater than the height of the first connecting hole 10 to smoothly connect the sleeve 5 to the first connecting hole 10. In this embodiment, the height is set to be greater than 1.5 cm, meaning that after the sleeve 5 is connected, one end of the sleeve 5 is located outside the first connecting hole 10, so that the sleeve 5 can be directly pinched and rotated to connect the sleeve 5 to the first connecting hole 10.

[0042] In one embodiment, the second connecting hole includes a first through hole 9 and a second through hole 8 that are interconnected. The first through hole 9 is connected to the first connecting hole 10. The size of the first through hole 9 matches the size of the tube head of the condenser tube 4, and the size of the second through hole 8 matches the size of the tube body of the condenser tube 4.

[0043] In one embodiment, the fixing member includes a second silicone pad 7 disposed within the second through hole 8, the second silicone pad 7 having a through groove that mates with the water inlet pipe of the condenser pipe 4. The second silicone pad 7 wraps around one end of the condenser pipe 4, which serves both as a cushioning effect and improves the stability of the connection between the condenser pipe 4 and the fixing mechanism.

[0044] In one embodiment, the second silicone pad 7 is provided with anti-slip texture to increase the friction between the second silicone pad 7 and the condenser tube 4.

[0045] In one embodiment, the support cylinder 3 has a conical structure and includes a large end and a small end. The large end is threadedly connected to the water bath body 1. The detachable connection between the large end and the water bath body 1 allows the center of the fixing mechanism to be lowered, preventing tilting. The height of the support cylinder 3 can be set as needed, as long as it ensures that the condenser tube 4 will not tip over.

[0046] In one embodiment, the support cylinder 3 is a transparent structure, specifically made of rigid transparent plastic. The transparent structure of the support cylinder 3 facilitates observation of the connection between the reaction vessel 6 and the condenser tube 4, and also allows for monitoring of the remaining liquid level inside the water bath body 1, making it more convenient to use.

[0047] The specific method of using this utility model is as follows:

[0048] Reference Figures 1-3 In use, first connect the reaction vessel 6 to the connecting sleeve, then connect the two through the external thread on the connecting sleeve and the internal thread on the first connecting hole 10 of the support cylinder 3. Then, align the reaction vessel 6 with the heating hole and insert it into the water bath body 1. Then, rotate the support cylinder 3 so that the support cylinder 3 and the connecting ring 2 are connected by threads. Then, insert the condenser tube 4, which has been connected to each pipe, into the second connecting hole and then into the insertion port of the reaction vessel 6 through the second connecting hole, so that the reaction vessel 6 and the condenser tube 4 are connected. The second silicone pad 7 in the second connecting hole limits the condenser tube 4, and then the water bath heating reflux can be started.

[0049] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A water bath refluxing apparatus characterized by: Including water bath body (1), reaction container (6) and condenser (4), the water bath body (1) includes at least one heating hole, and the fixing mechanism is detachably connected to the heating hole; The fixing mechanism includes a support cylinder (3) detachably connected with the water bath body (1), and the support cylinder (3) is provided with a first connecting hole (10) and a second connecting hole (10) in communication with each other; The fixing mechanism further includes a connecting sleeve detachably connected with the reaction container (6), the connecting sleeve is detachably connected with the first connecting hole (10), one end of the condenser (4) passes through the second connecting hole and is detachably connected with the reaction container (6), and the second connecting hole is provided with a fixing part matched with the condenser (4).

2. The water bath reflow apparatus of claim 1, wherein: The connecting ring (2) is provided around the heating hole, and the support cylinder (3) is threadedly connected with the connecting ring (2).

3. The water bath reflow apparatus of claim 1, wherein: The connecting sleeve includes a sleeve (5) with external threads, the sleeve (5) is threadedly connected with the first connecting hole (10), and the inner surface of the sleeve (5) is provided with a first silica gel pad (11) in interference fit with the reaction container (6).

4. The water bath reflow apparatus of claim 3, wherein: The inner surface of the first silica gel pad (11) is provided with anti-skid lines, and the height of the sleeve (5) is greater than the height of the first connecting hole (10).

5. A water bath reflow apparatus as claimed in any one of claims 1 to 4, wherein: The second connecting hole includes a first through hole (9) and a second through hole (8) in communication with each other, the first through hole (9) is in communication with the first connecting hole (10), the size of the first through hole (9) is matched with the size of the pipe head of the condenser (4), and the size of the second through hole (8) is matched with the size of the pipe body of the condenser (4).

6. A water bath reflow apparatus as claimed in claim 5, wherein: The fixing part includes a second silica gel pad (7) arranged in the second through hole (8), and the second silica gel pad (7) is provided with a through groove matched with the water inlet pipe of the condenser (4).

7. A water bath reflow apparatus as claimed in claim 6, wherein: The second silica gel pad (7) is provided with anti-skid lines.

8. A water bath reflow apparatus as claimed in any one of claims 1 to 4, wherein: The support cylinder (3) is a conical structure, and the support cylinder (3) includes a large end and a small end, and the large end is detachably connected with the water bath body (1).

9. A water bath reflow apparatus as claimed in any one of claims 1 to 4, wherein: The support cylinder (3) is a transparent structure.

Images