Separable rotary evaporation bottle

Abstract

The utility model discloses a separable rotary evaporating flask, which comprises a glass tube joint, a rotary tube joint, an evaporator tube joint and an evaporator tube joint, wherein one end of the glass tube joint is connected with a rotary machine head of a rotary evaporator; a bottle opening of the evaporation bottle is used for being connected with the other end of the glass tube connector; the sealing gasket is arranged between the other end of the glass tube connector and a bottle opening of the evaporation bottle, and a through mesh hole is formed in the sealing gasket; the filter paper is arranged between the sealing gasket and the bottle opening of the evaporation bottle; the detachable structure is used for detachably connecting the other end of the glass tube connector, the sealing gasket, the filter paper and the bottle opening of the evaporation bottle. According to the mode, solid powder can be prevented from entering the evaporator during solid-liquid separation, so that pipeline pollution and recycled liquid component pollution are prevented, meanwhile, the evaporation bottle is detachably arranged and convenient to clean, the rotary evaporation efficiency is effectively improved, and the service life of the rotary evaporator is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary evaporators, in particular to a detachable rotary evaporation bottle suitable for the rotary evaporator. Background Art

[0002] Rotary evaporator is a kind of rotary evaporator commonly used in scientific research fields such as ceramics, chemical industry, biomedicine, etc. to achieve solid-liquid separation and liquid-liquid separation. Figure 1 As shown, in the case of solid-liquid separation, the working principle is that a rotary evaporating flask containing a solid-liquid mixture is used. A vacuum device is used to control the evaporating flask to rotate at a certain speed in a constant temperature water bath under reduced pressure using a motor (that is, the motor drives the rotary head to rotate, and the rotary head drives the evaporating flask to rotate). Under reduced pressure, the solvent vapor passes through the glass shaft installed inside the rotary head, the rotary head, and the connecting pipe connected to the main condenser, and is condensed into liquid through the main condenser and the auxiliary condenser, and then enters the collection bottle, while the solid component remains in the rotary evaporating flask, thereby achieving the purpose of solid-liquid separation. In order to facilitate the rotation of the rotary evaporating flask and increase the evaporation area of ​​the solvent, the rotary evaporating flask is generally spherical and eggplant-shaped.

[0003] However, the ceramic fine powder dried under reduced pressure conditions will enter the connecting tube as the solvent evaporates (such as the ceramic fine powder will enter the connecting tube, main condenser, auxiliary condenser and collection bottle), and these extracted powders will not only cause contamination to the rotary evaporator, but also cause contamination to the collected solvent, which will make it difficult to directly reuse the collected solvent. Due to the hard characteristics of ceramic powder, as the amount of ceramic powder entering the connecting tube increases, it will gradually cause damage to the connecting tube surface and the rotating shaft. In more serious cases, it will cause the rotary evaporator to stop working. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a detachable rotary evaporation flask, which can solve the above technical problems.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a detachable rotary evaporating flask, characterized in that it includes: a glass tube joint, one end of which is connected to the rotating head of the rotary evaporator; an evaporating flask, the bottle mouth of which is used to be connected to the other end of the glass tube joint; a sealing gasket arranged between the other end of the glass tube joint and the bottle mouth of the evaporating flask, wherein the sealing gasket is provided with a through mesh; filter paper is arranged between the sealing gasket and the bottle mouth of the evaporating flask; and a detachable structure that detachably connects the other end of the glass tube joint, the sealing gasket, the filter paper and the bottle mouth of the evaporating flask.

[0006] Furthermore, the glass tube joint and the mouth of the evaporating flask are both annular, and the sealing gasket is circular, wherein the outer diameters of the glass tube joint, the sealing gasket and the mouth of the evaporating flask are all the same.

[0007] Furthermore, the sealing gasket is made of polytetrafluoroethylene or polyurethane.

[0008] Furthermore, the sealing gasket has through mesh holes.

[0009] Furthermore, the other end of the glass tube joint or the mouth of the evaporating flask is provided with a slot for accommodating and clamping the sealing gasket.

[0010] Furthermore, the detachable structure includes a first clamping arm and a second clamping arm in an arc shape, wherein one end of the first clamping arm is rotatably connected to one end of the second clamping arm, and the other end of the first clamping arm is detachably connected to the other end of the second clamping arm.

[0011] Compared with the prior art, the utility model provides a detachable rotary evaporating flask with the following beneficial effects: the utility model can effectively prevent solid powder from entering the rotating structure, condenser, collecting bottle and connecting tube of the evaporator during solid-liquid separation by arranging a sealing gasket and filter paper between the glass tube joint and the evaporating flask, thereby preventing pipeline contamination and contamination of the recovered liquid components. At the same time, the evaporating flask can be detached for easy cleaning, effectively improving the rotary evaporation efficiency and extending the service life of the rotary evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of a traditional rotary evaporator;

[0013] Figure 2 This is a schematic diagram of a detachable rotary evaporation flask of the present invention;

[0014] Figure 3 for Figure 2 Schematic diagram of the structure of the glass tube joint;

[0015] Figure 4 for Figure 2 Schematic diagram of the structure of the sealing gasket;

[0016] Figure 5 for Figure 2 Schematic diagram of the structure of the filter paper;

[0017] Figure 6 for Figure 2 Schematic diagram of the structure of the first detachable structure. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The utility model discloses a detachable rotary evaporation flask, which comprises a glass tube joint 3, an evaporation flask 2, a sealing gasket 4, filter paper 5 and a detachable structure 6.

[0020] One end of the glass tube joint 3 is connected to the rotating head 14 of the evaporator ( Figure 1 The evaporator shown in the figure is connected to rotate synchronously with the rotating head 14.

[0021] The mouth of the evaporating flask 2 is connected to the other end of the glass tube joint 3.

[0022] The sealing gasket 4 is arranged between the other end of the glass tube joint 3 and the bottle mouth of the evaporating flask 2, wherein the sealing gasket 4 is provided with through mesh holes.

[0023] The filter paper 5 is arranged between the sealing gasket 4 and the bottle mouth of the evaporating flask 2, and is used to filter the evaporated solvent flowing from the evaporating flask 2 to the glass tube joint 3, so that only gas can pass through but particles and other solids cannot pass through.

[0024] The detachable structure 6 is removably provided for detachably connecting the other end of the glass tube connector 3, the sealing gasket 4, the filter paper 5, and the mouth of the evaporating flask 2. In other words, the evaporating flask 2 is detachably connected to the glass tube connector 3 via the detachable structure 6, allowing for easy removal and installation as needed, facilitating cleaning and replacement.

[0025] In this embodiment, the detachable structure 6 includes an arc-shaped first clamping arm 61 and a second clamping arm 62, wherein one end of the first clamping arm 61 is rotatably connected to one end of the second clamping arm 62, and the other end of the first clamping arm 61 is detachably connected to the other end of the second clamping arm 62.

[0026] Specifically, a first extension portion 63 extends from the other end of the first clamping arm 61, and a second extension portion 64 extends from the other end of the second clamping arm 62. The first extension portion 63 has a first threaded hole, and the second extension portion 64 has a second threaded hole corresponding to the first threaded hole. First screws 65 are threadedly connected to the first and second threaded holes. It should be understood that the detachable structure 6 can be opened and closed by the first clamping arm 61 and the second clamping arm 62. The closed state requires detachable connection via the first screw 65 connecting the first and second extension portions 63, 64. This arrangement makes it easier to operate the evaporating flask 2 when the solvent needs to be replaced or refilled.

[0027] Preferably, the glass tube joint 3 and the mouth of the evaporating flask 2 are both annular, and the sealing gasket 4 is circular, wherein the outer diameters of the glass tube joint 3, the sealing gasket 4 and the mouth of the evaporating flask 2 are all the same.

[0028] Preferably, the sealing gasket 4 is made of polytetrafluoroethylene or polyurethane. It should be understood that since the rotary evaporator needs to operate under a reduced pressure environment, the through-mesh holes in the sealing gasket 4 can help prevent the filter paper 5 from being torn by the suction force generated by the vacuum during the vacuuming process. At the same time, while serving as a support for the filter paper 5, it can also achieve isolation of solid materials in the solvent vapor. The filter paper 5 is to prevent the dried solid powder from entering the rotary evaporator and causing negative effects. The two optional constituent materials of the sealing gasket 4 both have excellent chemical corrosion resistance and are insoluble in almost all solvents, which can support the sealing gasket 4 for long-term use.

[0029] Furthermore, in some embodiments, the other end of the glass tube joint 3 or the bottle mouth of the evaporating flask 2 is provided with a groove for accommodating and clamping the sealing gasket 4, and the groove here can better fix the sealing gasket 4 there.

[0030] Furthermore, to facilitate connection between the rotating head 14 and the glass tube connector 3, the rotating head 14 is annular, with one end of the glass tube connector 3 connected to the other end of the rotating head 14 via a second detachable structure (the detachable structure 6 in this embodiment can serve as the first detachable structure). It should be understood that the outer diameter of the glass tube connector 3 is the same as that of the rotating head 14. This second detachable structure prevents the glass tube connector 3 from falling off during rotation of the rotating head 14, facilitating both removal and installation.

[0031] Specifically, the second detachable structure includes an arc-shaped third clamping arm and a fourth clamping arm, wherein one end of the third clamping arm is rotatably connected to one end of the fourth clamping arm, and the other end of the third clamping arm is detachably connected to the other end of the fourth clamping arm. A third extension portion extends from the other end of the third clamping arm, and a fourth extension portion extends from the other end of the fourth clamping arm. The third extension portion has a third threaded hole, and the fourth extension portion has a fourth threaded hole corresponding to the third threaded hole. A second screw is threadedly connected to the third and fourth threaded holes. It should be understood that the second detachable structure and the detachable structure 6 have the same structure and function, and will not be elaborated on here.

[0032] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

Claims

1. A detachable rotary evaporation flask, characterized in that: include: A glass tube joint, one end of which is connected to the rotating head of the rotary evaporator; an evaporating flask, the mouth of which is used to connect to the other end of the glass tube joint; a sealing gasket, disposed between the other end of the glass tube joint and the mouth of the evaporating flask, wherein the sealing gasket is provided with through mesh holes; Filter paper, arranged between the sealing gasket and the mouth of the evaporating flask; The detachable structure detachably connects the other end of the glass tube joint, the sealing gasket, the filter paper and the bottle mouth of the evaporating flask.

2. The detachable rotary evaporation flask according to claim 1, characterized in that: The glass tube joint and the mouth of the evaporating flask are both annular, and the sealing gasket is circular, wherein the outer diameters of the glass tube joint, the sealing gasket and the mouth of the evaporating flask are all the same.

3. The detachable rotary evaporation flask according to claim 1, characterized in that: The sealing gasket is made of polytetrafluoroethylene or polyurethane.

4. The detachable rotary evaporation flask according to claim 1, characterized in that: The other end of the glass tube joint or the bottle mouth of the evaporating flask is provided with a clamping groove for accommodating and clamping the sealing gasket.

5. The detachable rotary evaporation flask according to claim 1, characterized in that: The detachable structure includes a first clamping arm and a second clamping arm in an arc shape, wherein one end of the first clamping arm is rotatably connected to one end of the second clamping arm, and the other end of the first clamping arm is detachably connected to the other end of the second clamping arm.

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