CN220801961U

CN220801961U - Rotary evaporator

Info

Publication number: CN220801961U
Application number: CN202322522557.9U
Authority: CN
Inventors: 周其旺; 马玲玲; 沈跃
Original assignee: Nanjing Jiaxi Kangde Pharmaceutical Technology Co ltd
Current assignee: Nanjing Jiaxi Kangde Pharmaceutical Technology Co ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2024-04-19
Anticipated expiration: 2033-09-18

Abstract

The utility model provides a rotary evaporator which comprises a bottom plate, a stand column, a rotary bottle, a rotary motor, a lifting assembly, a box body, a collecting bottle, a condenser pipe, a bath pot, a control box and a connecting sleeve, wherein the bottom end part of the stand column is fixedly arranged on the bottom plate, the control box is arranged at the top end part of the stand column, the connecting sleeve and the rotary motor are arranged in the middle of the stand column, the rotary motor is in transmission connection with the connecting sleeve, the rotary bottle is positioned above the box body, the end part of the rotary bottle is connected with one end part of the connecting sleeve through a threaded clamp, the other end part of the connecting sleeve is connected with the condenser pipe, the collecting bottle is connected with the bottom end part of the condenser pipe, the lifting assembly is arranged in the box body, and the bath pot for heating the rotary bottle is arranged at the top of the lifting assembly. The utility model realizes that the optimal tightness of the threaded clamp is easily determined in the installation process of the rotary bottle, and the bath pot stably descends up and down without inclination.

Description

Rotary evaporator

Technical Field

The utility model relates to the technical field of chemical instruments, in particular to a rotary evaporator.

Background

The rotary evaporator is a common instrument and equipment in the fields of chemistry, medicine, food, environmental detection and the like, is composed of a motor, a rotary bottle, a bath pot, a condenser pipe and the like, and is mainly used for continuously distilling a large amount of volatile solvents under a reduced pressure condition, particularly for distilling a receiving liquid during concentration and chromatographic separation of an extract, and can separate and purify reaction products.

After studying and experimenting with various types of rotary evaporators on the market, the inventors consider that the present rotary evaporators have the following drawbacks: (1) In the process of installing and taking down the rotary bottle, the optimal tightness of the threaded clamp is not clear, and if the rotary bottle is taken down due to too tight screwing, the rotary bottle is very laborious to take down, but if the rotary bottle is too loose screwing, the rotary bottle falls down in the experimental process, and the design of reminding of tightness is lacking. (2) The lifting of the existing rotary evaporator is usually realized by installing a lifting rod at the bottom of the bath, and the bath is found to be inclined easily in the practical process, so that the distillation effect is affected, and potential safety hazards exist.

Disclosure of utility model

The utility model aims to provide a rotary evaporator, which solves the problems that the optimal tightness of a rotary bottle is uncertain in taking and the bath pan is easy to incline in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a rotary evaporator, includes bottom plate, stand, rotary bottle, rotating electrical machines, lifting unit, box, collecting bottle, condenser pipe, bath, control box and adapter sleeve, stand bottom end fixed mounting is on the bottom plate, and control box is installed to its top, stand middle part is provided with adapter sleeve and rotating electrical machines, just the rotating electrical machines is connected with the adapter sleeve transmission, the rotary bottle is located the box top, and its tip passes through screw clamp and links to each other with adapter sleeve one end, another tip of adapter sleeve links to each other with the condenser pipe, condenser pipe bottom end connection has the collecting bottle, lifting unit sets up inside the box, and its top is provided with the bath that is used for heating the rotary bottle.

As the preferable scheme, the threaded clamp comprises an inner jacket and an outer jacket which are in threaded connection, the outer jacket is arranged outside the inner jacket, the inner aperture of the outer jacket is smaller than the inner aperture of the rotating bottle, which is close to one end of the rotating bottle, and a plurality of elastic petals are arranged at the end part of the inner jacket, which is close to one side of the rotating bottle, and the bottle mouth of the rotating bottle is inserted into a through cavity formed by the plurality of elastic petals.

As a preferable scheme, the outer jacket is far away from the outer side of one end of the rotary bottle and is fixedly provided with a spring box, a compression spring is arranged in the spring box, the end part of the compression spring is connected with a thimble, the thimble penetrates through the outer jacket and is abutted to the outer wall surface of the inner jacket, and a limit hole matched with the thimble is formed in the outer side of the inner jacket far away from one end of the rotary bottle.

As the preferred scheme, lifting unit is including setting up in two slide rails of bath both sides relatively, sliding connection has the slide respectively on two slide rails, two slide passes through angle iron piece and bath bottom fixed connection the slide rail bottom of bath one side is provided with the fixed plate, rotatable the being provided with the lead screw on the fixed plate, threaded connection has the nut seat on the lead screw, nut seat and its same slide board fixed connection, the fixed plate below is provided with the driving piece that is used for driving lead screw pivoted.

As the preferred scheme, the driving piece includes backup pad, first band pulley, second band pulley, belt and elevator motor, the backup pad is located fixed plate bottom end, terminal surface under the backup pad is all located to first band pulley and second band pulley, and passes through belt drive between the two, first band pulley is connected with lead screw bottom portion suit, the second band pulley is connected with the elevator motor who locates in the backup pad.

As a preferable scheme, a protective cover is arranged above the box body, and one end of the protective cover is hinged with the side wall of the box body and is used for covering the rotary bottle.

As a preferable scheme, the stand column is fixedly provided with a bottle support, one end of the bottle support is fixedly connected with the stand column, and the other end of the bottle support is positioned below the condensing tube and used for supporting the condensing tube.

Compared with the prior art, the utility model has the beneficial effects that: the spring box is arranged on the outer side of one end of the outer jacket, far away from the rotary bottle, and the compression spring is arranged in the spring box, the end part of the compression spring is connected with the thimble, the thimble penetrates through the outer jacket, when the outer jacket does not reach the optimal tightness, the thimble is always in butt joint with the outer wall surface of the inner jacket, when the thimble is embedded into the limiting hole on the outer side of the inner jacket, the optimal tightness is achieved, the thimble can collide with the sound of the inner jacket, so that an experimenter is reminded, and when the rotary bottle is taken down, the thimble can be separated from the limiting hole forcibly in the direction. Through set up slide rail and slide respectively in the bath both sides to set up lead screw, nut seat and driving piece in one side, this driving piece backup pad, first band pulley, second band pulley, belt and elevator motor, during operation, elevator motor drives the second band pulley and rotates, through the first band pulley of belt drive, thereby makes the lead screw rotate, and the nut seat reciprocates along the slide rail under the lead screw effect, thereby realizes the reciprocating of bath. Because both sides of the bath pan are provided with the sliding rail and the sliding plate, and the screw rod and the nut seat are adopted for matched transmission, the stable movement of the bath pan can be realized without inclination.

Drawings

The disclosure of the present utility model is described with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:

FIG. 1 is a schematic diagram of a rotary evaporator according to an embodiment of the utility model;

FIG. 2 is a cross-sectional view of a threaded clamp according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of an inner jacket according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a lifting assembly according to an embodiment of the present utility model;

Fig. 5 is a schematic structural diagram of a driving member according to an embodiment of the present utility model.

Reference numerals in the drawings: 1 bottom plate, 2 stand, 3 rotary bottle, 4 screw clamp, 4.1 inner jacket, 4.2 outer jacket, 4.3 spring case, 4.4 compression spring, 4.5 thimble, 4.6 through cavity, 4.7 spacing hole, 4.8 elastic valve, 5 rotary motor, 6 lifting component, 6.1 fixed plate, 6.2 backup pad, 6.3 first pulley, 6.4 second pulley, 6.5 belt, 6.6 lifting motor, 6.7 lead screw, 6.8 nut seat, 6.9 first slide rail, 6.10 first slide plate, 6.11 second slide rail, 6.12 angle iron block, 6.13 second slide plate, 7 box, 8 collecting bottle, 9 condenser tube, 10 bottle support, 11 control box, 12 protective cover, 13 bath pot, 14 connecting sleeve.

Detailed Description

It is to be understood that, according to the technical solution of the present utility model, those skilled in the art may propose various alternative structural modes and implementation modes without changing the true spirit of the present utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.

An embodiment according to the utility model is shown in connection with fig. 1-5. The utility model provides a rotary evaporator, including bottom plate 1, stand 2, rotatory bottle 3, rotating electrical machines 5, lifting unit 6, box 7, collecting bottle 8, condenser pipe 9, bath 13, control box 11 and adapter sleeve 14, stand 2 bottom fixed mounting is on bottom plate 1, control box 11 is installed at its top portion, stand 2 middle part is provided with adapter sleeve 14 and rotating electrical machines 5, and rotating electrical machines 5 and adapter sleeve 14 transmission are connected, rotatory bottle 3 is located box 7 top, and its tip passes through screw anchor clamps 4 and links to each other with adapter sleeve 14 tip, another tip of adapter sleeve 14 links to each other with condenser pipe 9, condenser pipe 9 bottom is connected with collecting bottle 8, lifting unit 6 sets up in box 7 inside, its top is provided with the bath 13 that is used for heating rotatory bottle 3.

It is easy to understand that the rotating motor 5 is in transmission connection with the connecting sleeve 14 through a gear and other parts, and the threaded clamp 4 arranged on the connecting sleeve 14 can drive the rotating bottle 3 to rotate under the driving of the rotating motor 5. The working principle of the rotary evaporator belongs to known technology and is not described in detail herein.

Referring to fig. 2 and 3, the threaded clamp 4 comprises an inner jacket 4.1 and an outer jacket 4.2 which are in threaded connection, the outer jacket 4.2 is arranged outside the inner jacket 4.1, the inner aperture of the outer jacket 4.2 is smaller at one end, which is close to the rotary bottle 3, than at the other end, the inner jacket 4.1 is provided with a plurality of elastic petals 4.8 at one end, which is close to the rotary bottle 3, of the rotary bottle 3, and the bottle mouth of the rotary bottle 3 is inserted into a through cavity 4.6 formed by the plurality of elastic petals 4.8. When the screw clamp 4 is screwed, the outer jacket 4.2 presses the elastic flaps 4.8 of the inner jacket 4.1, so that the elastic flaps 4.8 deform inwards, thereby clamping the mouth of the rotary bottle 3.

Preferably, a spring box 4.3 is fixedly arranged on the outer side of one end, far away from the rotary bottle 3, of the outer jacket 4.2, a compression spring 4.4 is arranged in the spring box 4.3, the end part of the compression spring 4.4 is connected with a thimble 4.5, the thimble 4.5 penetrates through the outer jacket 4.2 and is abutted against the outer wall surface of the inner jacket 4.1, and a limiting hole 4.7 matched with the thimble 4.5 is formed on the outer side of the inner jacket 4.1, far away from one end of the rotary bottle 3. In the process of installing the rotary bottle 3, when the outer jacket 4.2 does not reach the optimal tightness, the ejector pin 4.5 is always abutted against the outer wall surface of the inner jacket 4.1, and when the ejector pin 4.5 is embedded into the limiting hole 4.7 on the outer side of the inner jacket 4.1, the optimal tightness is achieved, and the ejector pin 4.5 can make a sound of colliding with the inner jacket 4.1, so that an experimenter is reminded.

Referring to fig. 4 and 5, the lifting assembly 6 includes two sliding rails oppositely disposed at two sides of the bath 13, sliding boards are slidably connected to the two sliding rails respectively, the two sliding boards are fixedly connected to the bottom end of the bath 13 through angle iron blocks 6.12, a fixing plate 6.1 is disposed at the bottom end of the sliding rail at one side of the bath 13, a screw rod 6.7 is rotatably disposed on the fixing plate 6.1, a nut seat 6.8 is screwed onto the screw rod 6.7, the nut seat 6.8 is fixedly connected to the same sliding board, and a driving member for driving the screw rod 6.7 to rotate is disposed below the fixing plate 6.1.

In the embodiment, a second sliding plate 6.13 and a second sliding rail 6.11 are arranged on the left side of the bath 13, the second sliding rail 6.11 is fixed on the inner wall of the box 7, the second sliding plate 6.13 and the second sliding rail 6.11 are in sliding fit, a first sliding plate 6.10 and a first sliding rail 6.9 are arranged on the right side of the bath 13, and the first sliding rail 6.9 is also fixed on the inner wall of the box 7.

Specifically, the driving piece comprises a supporting plate 6.2, a first belt pulley 6.3, a second belt pulley 6.4, a belt 6.5 and a lifting motor 6.6, wherein the supporting plate 6.2 is arranged at the bottom end part of the fixed plate 6.1, the first belt pulley 6.3 and the second belt pulley 6.4 are both arranged at the lower end surface of the supporting plate 6.2 and are in transmission through the belt 6.5, the first belt pulley 6.3 is connected with the bottom end part of the screw rod 6.7 in a sleeved mode, and the second belt pulley 6.4 is connected with the lifting motor 6.6 arranged on the supporting plate 6.2.

Preferably, a protective cover 12 is arranged above the box body 7, and one end of the protective cover 12 is hinged with the side wall of the box body 7 and is used for covering the rotary bottle 3. The stand 2 is fixedly provided with a bottle support 10, one end of the bottle support 10 is fixedly connected with the stand 2, and the other end of the bottle support 10 is positioned below the condenser tube 9 and used for supporting the condenser tube 9.

In summary, the beneficial effects of the utility model include: through setting up spring case 4.3 in outer jacket 4.2 one end outside of keeping away from rotatory bottle 3 to be equipped with compression spring 4.4 in spring case 4.3, compression spring 4.4 end connection has thimble 4.5, this thimble 4.5 runs through outer jacket 4.2, when outer jacket 4.2 did not reach the optimal elasticity, thimble 4.5 all the time with inner jacket 4.1 outer wall face looks butt, when thimble 4.5 embedding spacing hole 4.7 in inner jacket 4.1 outside, reach the optimal elasticity, and can make the sound that thimble 4.5 collided inner jacket 4.1, thereby remind the experimenter, when taking off rotatory bottle 3, the direction can make thimble 4.5 break away from spacing hole 4.7. Through set up slide rail and slide respectively in bath 13 both sides to set up lead screw 6.7, nut seat 6.8 and driving piece in one side, this driving piece backup pad 6.2, first band pulley 6.3, second band pulley 6.4, belt 6.5 and elevator motor 6.6, during operation, elevator motor 6.6 drives second band pulley 6.4 and rotates, first band pulley 6.3 is transmitted through belt 6.5 to make lead screw 6.7 rotate, nut seat 6.8 reciprocates along the slide rail under lead screw 6.7 effect, thereby realizes the upper and lower removal of bath 13. Due to the fact that the sliding rails and the sliding plates are arranged on two sides of the bath 13, and the screw rod 6.7 and the nut seat 6.8 are adopted to cooperatively drive, stable movement of the bath 13 can be achieved, and inclination cannot occur.

The technical scope of the present utility model is not limited to the above description, and those skilled in the art may make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present utility model, and these changes and modifications should be included in the scope of the present utility model.

Claims

1. The utility model provides a rotary evaporator, its characterized in that includes bottom plate, stand, rotatory bottle, rotating electrical machines, lifting unit, box, collecting bottle, condenser pipe, bath, control box and adapter sleeve, stand bottom end fixed mounting is on the bottom plate, and control box is installed at its top, stand middle part is provided with adapter sleeve and rotating electrical machines, just the rotating electrical machines is connected with the adapter sleeve transmission, rotatory bottle is located the box top, and its tip passes through screw anchor clamps and links to each other with adapter sleeve one end, another tip of adapter sleeve links to each other with the condenser pipe, condenser pipe bottom end connection has the collecting bottle, lifting unit sets up in the box inside, and its top is provided with the bath that is used for heating rotatory bottle.

2. The rotary evaporator according to claim 1, wherein the screw clamp comprises an inner jacket and an outer jacket which are connected through screw threads, the outer jacket is arranged outside the inner jacket, the inner aperture of the outer jacket is smaller at one end, which is close to the rotary bottle, than at the other end, the inner jacket is provided with a plurality of elastic petals at one end, which is close to the rotary bottle, and the bottle mouth of the rotary bottle is inserted into a through cavity formed by the plurality of elastic petals.

3. The rotary evaporator according to claim 2, wherein a spring box is fixedly arranged on the outer side of one end, far away from the rotary bottle, of the outer jacket, a compression spring is arranged in the spring box, the end part of the compression spring is connected with a thimble, the thimble penetrates through the outer jacket and is abutted against the outer wall surface of the inner jacket, and a limiting hole matched with the thimble is formed on the outer side of the inner jacket, far away from one end of the rotary bottle.

4. The rotary evaporator according to claim 1, wherein the lifting assembly comprises two sliding rails which are oppositely arranged on two sides of the bath pan, sliding plates are respectively connected to the two sliding rails in a sliding manner, the two sliding plates are fixedly connected with the bottom end of the bath pan through angle iron blocks, a fixed plate is arranged at the bottom end of the sliding rail on one side of the bath pan, a screw rod is rotatably arranged on the fixed plate, a nut seat is connected to the screw rod in a threaded manner, the nut seat is fixedly connected with the same side sliding plate, and a driving piece for driving the screw rod to rotate is arranged below the fixed plate.

5. The rotary evaporator according to claim 4, wherein the driving member comprises a supporting plate, a first belt wheel, a second belt wheel, a belt and a lifting motor, the supporting plate is arranged at the bottom end part of the fixed plate, the first belt wheel and the second belt wheel are both arranged at the lower end surface of the supporting plate and are in transmission through the belt, the first belt wheel is sleeved with the bottom end part of the screw rod, and the second belt wheel is connected with the lifting motor arranged on the supporting plate.

6. The rotary evaporator of claim 1, wherein a protective cover is arranged above the box body, and one end of the protective cover is hinged with the side wall of the box body and is used for covering the rotary bottle.

7. The rotary evaporator according to claim 1, wherein a bottle holder is fixedly arranged on the upright, one end of the bottle holder is fixedly connected with the upright, and the other end of the bottle holder is positioned below the condensing tube and is used for supporting the condensing tube.