Rotary evaporator fixing device

Abstract

The utility model discloses a rotary evaporator fixing device, which belongs to the technical field of rotary evaporators and comprises a water bath kettle and an evaporator rotary bottle positioned above the water bath kettle, the top of a supporting plate is rotatably connected with a movable rod, one end of the movable rod is fixedly connected with a stabilizing block, and one side, far away from the movable rod, of the stabilizing block is fixedly connected with a limiting disc. And a fixing assembly is arranged in the limiting disc. According to the rotary evaporator fixing device, through cooperative use of an air inlet pipe and a communicating pipe, air is conveniently conveyed into an air bag, through the effect of an exhaust pipe, air in the air bag is conveniently exhausted, and therefore the size of the air bag is conveniently controlled, through the effect of a sliding plate, an adjusting rod is conveniently moved and adjusted, and through the effect of rolling wheels, the air bag is conveniently fixed. The evaporator rotating bottle is convenient to limit and support, so that the effect of limiting and supporting the evaporator rotating bottle is facilitated, the evaporator rotating bottle is prevented from shaking due to over-high rotating speed or non-uniform rotating speed, and the incomplete volatilization or splashing of a sample is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary evaporators, and more specifically, relates to a fixing device for a rotary evaporator. Background Art

[0002] A rotary evaporator is a commonly used experimental instrument, mainly used for operations such as sample concentration, separation, and purification in the fields of chemistry, pharmaceuticals, food, and environmental protection. Its working principle is: putting the sample into a rotary bottle, and using the turntable and vacuum system of the rotary evaporator to gradually evaporate and concentrate the sample under temperature control conditions, and separating the volatile substances from the sample.

[0003] The rotary bottle in the rotary evaporator has a very important function. It can help the sample be fully exposed to the vacuum environment of the rotary evaporator for rapid volatilization and evaporation. Since the sample accumulates inside the rotary bottle above the water bath, the weight on the downward-tilted side of the rotary bottle is relatively large. During the use of the rotary bottle, further limiting treatment is required for the bottle body of the rotary bottle.

[0004] In the prior art, the position near the bottle mouth of the rotary bottle is usually limited. Due to the relatively large weight at the bottom of the rotary bottle, it may not be convenient to further support the position at the bottom of the rotary bottle during the rotation of the rotary bottle, which may cause the rotary bottle to shake, and then cause the sample to splash out or the volatilization to be incomplete.

[0005] Regarding the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0006] Regarding the problems in the related art, the utility model proposes a fixing device for a rotary evaporator to overcome the above-mentioned technical problems existing in the prior related art.

[0007] To achieve the above object, the utility model adopts the following technical solutions:

[0008] A fixing device for a rotary evaporator includes a water bath and an evaporator rotary bottle located above the water bath. A support plate is fixedly connected to the outer side wall of the water bath. The top of the support plate is rotatably connected to a movable rod. One end of the movable rod is fixedly connected to a stabilizing block. The side of the stabilizing block away from the movable rod is fixedly connected to a limiting disc. A fixing component is arranged inside the limiting disc;

[0009] The fixing component includes a plurality of air bags fixedly connected to the inner side wall of the limiting disc. The outer side walls of the plurality of air bags are all fixedly connected with sliding plates. The sliding plates are fixedly connected with adjusting rods. One end of the adjusting rod away from the sliding plate is provided with a roller. The outer side wall of the roller is attached to the outer side wall of the evaporator rotating bottle. A communicating pipe is fixedly connected between adjacent two air bags. The outer side wall of the communicating pipe is fixedly connected with an air inlet pipe. The air inlet pipe fixedly penetrates through the outer side wall of the limiting disc. An exhaust pipe is fixedly connected to one of the air bags and fixedly penetrates through the outer side wall of the limiting disc.

[0010] Preferably, the plurality of air bags are distributed in a circumferential array inside the limiting disc.

[0011] By providing the air bags, it is convenient to change the position where the roller is located.

[0012] Preferably, a sealing cover is threadedly connected to the top of the exhaust pipe, and anti-slip lines are provided on the outer side wall of the sealing cover.

[0013] By providing the sealing cover, the top of the exhaust pipe is closed.

[0014] Preferably, a partition plate is fixedly connected to the inner side wall of the limiting disc. The outer side wall of the sliding plate is slidably connected to the outer side wall of the partition plate. The communicating pipe fixedly penetrates through the inside of the partition plate.

[0015] By providing the partition plate, the air bags and the sliding plates are limited.

[0016] Preferably, an air pump is installed on the outer side wall of the water bath. The air outlet of the air pump is fixedly connected to one end of the air inlet pipe away from the communicating pipe. A one-way valve is provided inside the air inlet pipe.

[0017] By providing the air pump, it is convenient to transfer gas into the air bags.

[0018] Preferably, a round hole is provided on the inner side wall of the limiting disc. The limiting disc is slidably connected to the adjusting rod through the round hole.

[0019] By providing the round hole, the stability of the sliding adjustment of the adjusting rod is increased.

[0020] Preferably, a second sliding groove is provided on the movable rod. A slider is slidably connected to the movable rod through the second sliding groove. A first sliding groove is provided on the supporting plate. The slider is attached to the supporting plate through the first sliding groove.

[0021] By providing the first sliding groove, the second sliding groove and the slider, the angle limit treatment of the movable rod after rotation is facilitated.

[0022] In summary, the technical effects and advantages of the present utility model are as follows: for the fixed device of the rotary evaporator, through the combined use of the intake pipe and the connecting pipe, it is convenient to transmit gas into the interior of the airbag. Through the function of the exhaust pipe, it is convenient to discharge the gas inside the airbag, thereby facilitating the control of the volume of the airbag. Through the function of the sliding plate, it is convenient for the adjusting rod to move and adjust. Furthermore, through the function of the roller, it is convenient to limit and support the rotary flask of the evaporator, thus facilitating the effect of limiting and supporting the rotary flask of the evaporator, avoiding the shaking of the rotary flask of the evaporator due to too fast or uneven rotation speed, and further avoiding incomplete volatilization or splashing of the sample.

[0023] Through the combined use of the support plate, the movable rod and the stabilizing block, the angle of the limiting plate is adjusted, thereby adjusting the angle of the rotary flask of the evaporator. Furthermore, through the combined use of the first chute, the second chute and the slider, the angle after the rotation adjustment of the movable rod is limited, thus facilitating the effect of fixing the adjusted angle of the rotary flask of the evaporator. Brief Description of the Drawings

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0025] Figure 2 is a sectional structural schematic diagram of the limiting plate of the present utility model;

[0026] Figure 3 is a schematic diagram of the fixing assembly and its related structures of the present utility model;

[0027] Figure 4 is a schematic diagram of the airbag and its related structures of the present utility model;

[0028] Figure 5 For the present utility model Figure 3 is an enlarged structural schematic diagram at position A.

[0029] In the figure: 1, water bath; 2, rotary flask of the evaporator; 3, support plate; 4, movable rod; 5, stabilizing block; 6, limiting plate; 7, partition plate; 8, fixing assembly; 81, airbag; 82, sliding plate; 83, adjusting rod; 84, roller; 85, connecting pipe; 86, intake pipe; 87, exhaust pipe; 88, sealing cover; 9, air pump; 10, round hole; 11, first chute; 12, second chute; 13, slider. Detailed Description of the Preferred Embodiment

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0031] Refer to Figures 1-3, A rotary evaporator fixing device, including a water bath 1 and an evaporator rotary flask 2 located above the water bath 1. A support plate 3 is fixedly connected to the outer side wall of the water bath 1. There are two support plates 3, and the two support plates 3 are symmetrically distributed with the central axis of the water bath 1 as the center. The top of the support plate 3 is rotatably connected to a movable rod 4. The movable rod 4 penetrates through the top of the support plate 3. One end of the movable rod 4 is fixedly connected to a stabilizing block 5. A limiting disk 6 is fixedly connected to the side of the stabilizing block 5 away from the movable rod 4. The inner circumference of the limiting disk 6 is larger than the outer circumference of the evaporator rotary flask 2. There are two stabilizing blocks 5, and the two stabilizing blocks 5 are symmetrically distributed with the central axis of the limiting disk 6 as the center. A fixing component 8 for facilitating the limiting treatment of the evaporator rotary flask 2 is arranged inside the limiting disk 6;

[0032] The fixing component 8 includes a plurality of air bags 81 fixedly connected to the inner side wall of the limiting disk 6. The outer side walls of the plurality of air bags 81 are all fixedly connected with sliding plates 82. The longitudinal sections of the inflated air bags 81 and the sliding plates 82 are both arc-shaped. An adjusting rod 83 is fixedly connected to the sliding plate 82. A roller 84 is installed at one end of the adjusting rod 83 away from the sliding plate 82. The number of the air bags 81, the sliding plates 82, the adjusting rods 83 and the rollers 84 is equal. The outer side wall of the roller 84 is in contact with the outer side wall of the evaporator rotary flask 2. A communicating pipe 85 is fixedly connected between adjacent two air bags 81. An air inlet pipe 86 is fixedly connected to the outer side wall of the communicating pipe 85. The air inlet pipe 86 fixedly penetrates through the outer side wall of the limiting disk 6. An exhaust pipe 87 is fixedly connected to one of the air bags 81, and the exhaust pipe 87 fixedly penetrates through the outer side wall of the limiting disk 6; Gas is transmitted to the inside of the air bag 81 through the air inlet pipe 86 and the communicating pipe 85. The air bag 81 slowly expands accordingly, so that the volume of the air bag 81 increases. The sliding plate 82 drives the adjusting rod 83 to move towards the direction close to the evaporator rotary flask 2, so that the roller 84 moves to be in contact with the evaporator rotary flask 2. The gas inside the air bag 81 leaks out through the exhaust pipe 87, thereby limiting and supporting the evaporator rotary flask 2, and preventing the evaporator rotary flask 2 from shaking due to too fast or uneven rotation speed.

[0033] Refer to Figures 3-4 , The plurality of air bags 81 are distributed in a circumferential array inside the limiting disk 6, which is convenient for limiting and supporting the evaporator rotary flask 2 at multiple angles on the surface.

[0034] Refer to Figure 4 , A sealing cover 88 is threadedly connected to the top of the exhaust pipe 87. A rubber plug is arranged inside the sealing cover 88, and anti-slip patterns are arranged on the outer side wall of the sealing cover 88. The sealing cover 88 seals the top of the exhaust pipe 87 through the rubber plug.

[0035] Refer to Figure 2, a partition plate 7 is fixedly connected to the inner side wall of the limit disc 6. There are multiple partition plates 7. Each airbag 81 is located between every two partition plates 7. The outer side wall of the sliding plate 82 is slidably connected to the outer side wall of the partition plate 7. The communication pipe 85 is fixedly penetrated through the inside of the partition plate 7. The partition plate 7 limits the slowly expanding airbag 81 and at the same time increases the stability of the movement adjustment of the sliding plate 82.

[0036] Refer to Figure 1 and Figure 4 , an air pump 9 is installed on the outer side wall of the water bath 1. The air pump 9 is located on the left side of the bottom of the water bath 1. The air outlet of the air pump 9 is fixedly connected to one end of the air inlet pipe 86 away from the communication pipe 85. A one-way valve is arranged inside the air inlet pipe 86. After the air pump 9 operates, the gas is transmitted to the inside of the airbag 81 through the air inlet pipe 86 and the communication pipe 85. The one-way valve prevents the gas inside the air inlet pipe 86 from flowing back.

[0037] Refer to Figure 2 , a round hole 10 is opened on the inner side wall of the limit disc 6. There are multiple round holes 10. The multiple round holes 10 are arranged in a circumferential array on the inner side wall of the limit disc 6. The limit disc 6 is slidably connected to the adjusting rod 83 through the round hole 10. The round hole 10 increases the stability of the movement adjustment of the adjusting rod 83.

[0038] Refer to Figure 3 and Figure 5 , a second chute 12 is opened on the movable rod 4. The movable rod 4 is slidably connected to a slider 13 through the second chute 12. The slider 13 is located at one end of the movable rod 4 away from the stabilizing block 5. The second chute 12 facilitates the movement adjustment of the slider 13; a first chute 11 is opened on the support plate 3. The slider 13 is attached to the support plate 3 through the first chute 11. The slider 13 is attached to the support plate 3 through the first chute 11 to limit the position of the movable rod 4 after rotation, so that the evaporator rotating bottle 2 is at a suitable inclination angle.

[0039] Working principle: First, the evaporation flask 2 rotates through the inside of the limit disc 6. The air pump 9 operates, and the gas is transmitted to the inside of the airbag 81 through the intake pipe 86 and the connecting pipe 85. The airbag 81 then expands, and its volume slowly increases. Each airbag 81 is located between every two partition plates 7. The sliding plate 82 slides accordingly, and the adjusting rod 83 moves towards the evaporation flask 2 through the action of the round hole 10, causing the roller 84 to move into contact with the evaporation flask 2, thereby limiting and supporting the evaporation flask 2. During the rotation of the evaporation flask 2, through the action of the adjusting rod 83, the rotation is further stabilized. When it is necessary to remove the evaporation flask 2, the sealing cap 88 rotates and moves away from the exhaust pipe 87, and the gas inside the airbag 81 is discharged through the connecting pipe 85 and the airbag 81, causing the volume of the airbag 81 to decrease accordingly. The sliding plate 82 moves towards the airbag 81, and then the adjusting rod 83 drives the roller 84 to move away from the evaporation flask 2. Subsequently, the evaporation flask 2 can be removed from the inside of the limit disc 6. When adjusting the slope of the evaporation flask 2, the limit disc 6 is rotated and adjusted through the cooperation of the stabilizing block 5 and the movable rod 4. The support plate 3 moves through the first sliding groove 11 and the second sliding groove 12 to fit with the support plate 3, and the position of the movable rod 4 after adjustment is limited.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rotary evaporator fixing device, comprising a water bath (1) and an evaporator rotary bottle (2) located above the water bath (1), characterized in that, A support plate (3) is fixedly connected to the outer side wall of the water bath (1). A movable rod (4) is rotatably connected to the top of the support plate (3). One end of the movable rod (4) is fixedly connected to a stabilizing block (5). A limiting disc (6) is fixedly connected to the side of the stabilizing block (5) away from the movable rod (4). A fixing assembly (8) is arranged inside the limiting disc (6). The fixing assembly (8) includes a plurality of air bags (81) fixedly connected to the inner side wall of the limiting disc (6). Slide plates (82) are fixedly connected to the outer side walls of the plurality of air bags (81). An adjusting rod (83) is fixedly connected to the slide plate (82). A roller (84) is installed at the end of the adjusting rod (83) away from the slide plate (82). The outer side wall of the roller (84) is in contact with the outer side wall of the evaporator rotary flask (2). A communicating pipe (85) is fixedly connected between adjacent two air bags (81). An air inlet pipe (86) is fixedly connected to the outer side wall of the communicating pipe (85). The air inlet pipe (86) fixedly penetrates through the outer side wall of the limiting disc (6). An exhaust pipe (87) is fixedly connected to one of the air bags (81), and the exhaust pipe (87) fixedly penetrates through the outer side wall of the limiting disc (6).

2. The fixed device of a rotary evaporator according to claim 1, characterized in that, The plurality of air bags (81) are distributed in a circumferential array inside the limiting disc (6).

3. The fixed device for a rotary evaporator according to claim 1, characterized in that, A sealing cover (88) is threadedly connected to the top of the exhaust pipe (87), and anti-slip lines are arranged on the outer side wall of the sealing cover (88).

4. A rotary evaporator fixing device according to claim 1, characterized in that, A partition plate (7) is fixedly connected to the inner side wall of the limiting disc (6). The outer side wall of the slide plate (82) is slidably connected to the outer side wall of the partition plate (7). The communicating pipe (85) fixedly penetrates through the inside of the partition plate (7).

5. A rotary evaporator fixing device according to claim 1, characterized in that, An air pump (9) is installed on the outer side wall of the water bath (1). The air outlet of the air pump (9) is fixedly connected to the end of the air inlet pipe (86) away from the communicating pipe (85). A one-way valve is arranged inside the air inlet pipe (86).

6. The fixed device for a rotary evaporator according to claim 1, wherein, A round hole (10) is formed in the inner side wall of the limiting disc (6). The limiting disc (6) is slidably connected to the adjusting rod (83) through the round hole (10).

7. A rotary evaporator fixing device according to claim 1, characterized in that, A second sliding groove (12) is formed in the movable rod (4). A slider (13) is slidably connected to the movable rod (4) through the second sliding groove (12). A first sliding groove (11) is formed in the support plate (3). The slider (13) is in contact with the support plate (3) through the first sliding groove (11).

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