Vacuum dehydration stirring paddle for flask

Abstract

The utility model discloses a flask vacuum dehydration stirring paddle which comprises a stirring rod and a paddle body installed at one end of the stirring rod, the stirring rod comprises a core rod and a sleeve fixedly arranged on the outer side of the core rod in a sleeved mode, and the end, close to the paddle body, of the sleeve is closed and completely wraps the core rod. The stirring rod is fixedly connected with the paddle body through the closed end, close to the paddle body, of the sleeve, external threads are arranged at the closed end, close to the paddle body, of the sleeve, a connecting hole matched with the end of the sleeve is formed in the paddle body, and internal threads matched with the external threads of the sleeve are arranged on the side wall of the connecting hole. And the sleeve is detachably connected and fixed with the paddle body through the matching of the internal thread and the external thread. According to the vacuum dehydration stirring paddle for the flask, the problem of air tightness of the stirring paddle is solved by changing the connection mode of the stirring rod and the paddle body, and the end part of the closed stirring rod is in threaded connection with the paddle body to replace conventional pin connection, so that the dehydration effect cannot be influenced by air leakage.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stirring paddle, especially to a flask vacuum dehydration stirring paddle. BACKGROUND

[0002] When carrying out medium liquid dehydration in the laboratory, rotary evaporation or large capacity flask is generally used for dehydration operation, wherein the efficiency of rotary evaporation is too low, and currently, large capacity flask is widely used for dehydration, and stirring paddle is needed for stirring during dehydration of the large capacity flask, the existing stirring paddle generally comprises a stirring rod and a stirring blade, the stirring rod is a stainless steel rod, a sleeve pipe is further arranged outside the stainless steel rod, and the stirring rod and the stirring blade are connected by a pin, which causes that when the stirring paddle is applied to a closed flask, the gap between the stainless steel rod and the sleeve pipe and the gap between the pin and the sleeve pipe and the stainless steel rod will affect the air tightness of the container, and the vacuum degree will not meet the standard due to the problem of air tightness during dehydration of the large capacity flask, thereby affecting the dehydration effect.

[0003] Therefore, in combination with the above-mentioned technical problems, it is necessary to provide a new technical scheme. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a flask vacuum dehydration stirring paddle which will not be affected by the problem of air tightness to affect the dehydration effect.

[0005] To solve the above technical problems, the utility model provides a flask vacuum dehydration stirring paddle, and the specific technical scheme is as follows:

[0006] A flask vacuum dehydration stirring paddle, comprising a stirring rod and a paddle body installed at one end of the stirring rod, wherein the stirring rod comprises a core rod and a sleeve pipe fixed on the outside of the core rod, the end of the sleeve pipe close to the paddle body is closed and completely wraps the core rod, the closed end of the sleeve pipe close to the paddle body is connected and fixed with the paddle body through the sleeve pipe, and the closed end of the sleeve pipe close to the paddle body is provided with external threads, the paddle body is provided with a connecting hole matched with the end of the sleeve pipe, the side wall of the connecting hole is provided with internal threads matched with the external threads of the sleeve pipe, and the sleeve pipe is detachably connected and fixed with the paddle body through the cooperation of the internal threads and the external threads.

[0007] Preferably, the paddle body comprises a paddle blade seat and stirring blades fixed on the paddle blade seat, one end of the stirring blades is connected and fixed with the paddle blade seat close to the bottom end, and the other end extends away from the paddle blade seat in an arc shape.

[0008] Preferably, the connecting hole is arranged at the top end of the paddle blade seat, the connecting hole is a blind hole, and the external threads of the end of the sleeve pipe and the internal threads in the connecting hole are all right-handed threads.

[0009] Preferably, the core rod is made of stainless steel.

[0010] Preferably, the sleeve is made of tetrafluoroethylene.

[0011] Preferably, both the impeller seat and the stirring blade are made of polytetrafluoroethylene (PTFE).

[0012] The flask vacuum dehydration stirring paddle of this utility model has the following beneficial effects:

[0013] The vacuum dehydration stirring paddle of this invention solves the airtightness problem of the stirring paddle by changing the connection method between the stirring rod and the paddle body. The threaded connection between the sealed end of the stirring rod and the paddle body replaces the conventional pin connection, which will not affect the dehydration effect due to air leakage. At the same time, the stirring blade can be replaced according to actual needs, resulting in higher stirring efficiency and effectively improving the efficiency of large-scale dehydration.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of a vacuum dehydration impeller for a flask;

[0017] Figure 2 for Figure 1 A schematic diagram of the joint between the stirring rod and the impeller seat.

[0018] Wherein, 1-stirring rod; 11-core rod; 12-sleeve; 2-paddle body; 21-stirring blade; 22-paddle seat; 221-connecting hole. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] Example

[0021] Please see Figures 1 to 2The utility model provides a flask vacuum dehydration stirring paddle, including stirring rod 1 and the paddle body 2 of installation at the one end of stirring rod, the stirring rod 1 includes the core rod 11 and the sleeve 12 of fixedly installed in the outside of core rod, the sleeve is closed and completely wrapped the core rod near the one end of paddle body, and the closed end near the paddle body of the sleeve is connected with the paddle body through the sleeve and is fixed, and the closed end near the paddle body of the sleeve is equipped with the external thread, and the connecting hole 221 of adapting with the sleeve end is set up on the paddle body, and the connecting hole side wall is equipped with the internal thread of adapting with the external thread of sleeve, and the sleeve is detachably connected with the paddle body through the cooperation of internal thread and external thread.

[0022] The paddle body 2 includes the paddle blade seat 22 and the stirring blade 21 fixed on the paddle blade seat, and one end of the stirring blade is connected and fixed with the paddle blade seat near the bottom end, and the other end extends in an arc shape away from the paddle blade seat.

[0023] The connecting hole 221 is set up at the top end of the paddle blade seat 22, and the connecting hole is a blind hole, and the external thread of the sleeve end and the internal thread in the connecting hole are both right-handed threads.

[0024] The core rod 11 is made of stainless steel.

[0025] The sleeve 12 is made of tetrafluoroethylene.

[0026] The paddle blade seat 22 and the stirring blade 21 are both made of tetrafluoroethylene.

[0027] The flask vacuum dehydration stirring paddle of the embodiment utilizes the threaded connection between the closed sleeve 12 and the paddle blade seat 22 to fix and detach, the stainless steel core rod 11 is wrapped inside the tetrafluoroethylene sleeve, the connection between the sleeve and the paddle body 2 is located inside the flask during stirring, and the air leakage phenomenon does not occur, the right-handed thread connection mode can also avoid the phenomenon of paddle body falling off during stirring, and the detachable paddle body can enable the experimental personnel to replace the stirring blade of the corresponding size according to the size of the flask.

[0028] The utility model discloses the beneficial effect is: through changing the connection mode of stirring rod and paddle body to solve the air tightness problem of stirring paddle, utilizes the threaded connection between the closed stirring rod end and paddle body to replace the conventional pin connection, and the influence on dehydration effect caused by air leakage does not occur, and the stirring blade can be replaced according to actual needs, and the stirring efficiency is higher, and the efficiency of large batch dehydration is also effectively improved.

[0029] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled person in the art can change, modify and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A flask vacuum dehydration stirring paddle characterized by: The paddle body (2) is connected with the stirring rod through the closed end of the sleeve pipe close to the paddle body, and the closed end of the sleeve pipe close to the paddle body is provided with external threads.

2. The flask vacuum dehydration paddle of claim 1, wherein: The paddle body (2) includes a paddle seat (22) and stirring blades (21) fixed on the paddle seat, one end of the stirring blades is connected with the paddle seat close to the bottom end, and the other end extends in an arc shape away from the paddle seat.

3. The flask vacuum dehydration paddle of claim 2, wherein: The connecting hole (221) is arranged at the top end of the paddle seat (22), and the connecting hole is a blind hole.

4. The flask vacuum dehydration paddle of claim 1, wherein: The core rod (11) is made of stainless steel.

5. The flask vacuum dehydration paddle of claim 1, wherein: The sleeve pipe (12) is made of tetrafluoroethylene.

6. The flask vacuum dehydration paddle of claim 1, wherein: The paddle seat (22) and the stirring blades (21) are made of tetrafluoroethylene.

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