Rotary evaporator capable of continuously feeding
By designing a detachable lid and an electric pusher-driven piston system, combined with a one-way valve and liquid supply mechanism, the problems of cumbersome operation and reagent residue in rotary evaporators are solved, achieving efficient continuous feeding and cleaning, and improving distillation efficiency.
Patent Information
- Application Number
- CN202520070908.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing rotary evaporators are cumbersome to operate when adding distillation solvents, which increases the feeding time and makes them impossible to disassemble and clean, resulting in reagent residues and reduced distillation efficiency.
A detachable lid structure and an electrically driven piston system were designed, combined with a one-way valve and a liquid supply mechanism, to enable continuous feeding and cleaning of the rotary evaporator and avoid reagent residue.
It enables the rotary evaporator to be disassembled and cleaned, and allows for controlled feeding, thereby improving distillation efficiency, saving operation time, and ensuring reagent purity.
Smart Images
Figure CN223716388U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rotary evaporator technical field, especially in a kind of continuous feeding's rotary evaporator. BACKGROUND
[0002] Rotary evaporator is also called rotary evaporator, is the laboratory commonly used equipment, by motor, distillation flask, heating pot, condenser tube etc. It is used to recover, evaporate organic solvent, it is driven distillation flask rotation using a motor, rotary evaporator is mainly used for continuous distillation under reduced pressure volatile solvent, applied in chemistry, chemical industry, biological medicine etc. In prior art, when adding distillation solvent, distillation flask needs to be disassembled, then adding distillation solvent, then distillation flask is installed back to original position, operation is complicated, and feeding time is increased, so that distillation system efficiency is low, therefore continuous feeding device is needed to continuously feed rotary evaporator, as different raw material reagent is added, continuous feeding device generally cannot be disassembled and cleaned, so that raw material reagent of last time remains, so that distillation efficiency is reduced. UTILITY MODEL CONTENT
[0003] The utility model aims at providing a kind of continuous feeding's rotary evaporator, has the advantages of disassembling and cleaning, controllable adjustment feeding capacity.
[0004] The above technical purpose of the utility model is realized by the following technical scheme:
[0005] A kind of continuous feeding rotary evaporator, including base, the upper end of the base is provided with rotary evaporator body and placing seat, the upper end of the placing seat is fixed with liquid inlet box, the upper end of the liquid inlet box is provided with detachable box cover, the top of the box cover is fixed with support, the upper end of the support is installed with electric push rod, the inside of the support is provided with connecting shaft, the output shaft of the electric push rod is worn through support, and is fixedly connected with the upper end of connecting shaft, the inside of the liquid inlet box is provided with movable piston, the lower end of the connecting shaft is worn through box cover, and is fixedly connected with the upper end of piston, connecting seat is fixed on the connecting shaft, one side of the connecting seat is fixed with pointer, the upper end of the box cover is fixed with indicating scale, and the indicating scale is matched with pointer, the upper end of the box cover is also fixed with slide bar, the slide ring is worn on the slide bar, the other side of the connecting seat is fixed with connecting rod, and the other end of the connecting rod is fixedly connected with slide ring, the slide bar is also provided with adjustable limit ring, one side of the liquid inlet box is also provided with liquid level tube, and the liquid level tube is matched with indicating scale, the lower side of the liquid inlet box is connected with liquid inlet pipe and liquid outlet pipe, the liquid outlet pipe is connected with hose, and the other end of the hose is connected with rotary evaporator body, the other end of the liquid inlet pipe is connected with liquid supply mechanism.
[0006] As preferred, the lower end of the box cover is fixed with connecting ring, and the connecting ring is located in the inside of the liquid inlet box and is matched with the inner wall of the liquid inlet box, the outside of the liquid inlet box is worn through several fixed pins, the top of several fixed pins is respectively worn through connecting ring, reset spring is respectively worn on each fixed pin, and the two ends of the reset spring are connected between the tail end of the fixed pin and the outer wall of the liquid inlet box.
[0007] As preferred, the liquid supply mechanism includes liquid supply tank, one side of the liquid inlet box is connected with mounting bracket, and the liquid supply tank is installed on the mounting bracket, the lower end of the liquid supply tank is connected with the other end of the liquid inlet pipe.
[0008] As preferred, the two sides of the limit ring are respectively worn through positioning pin, several positioning holes are arranged on the slide bar, and the positioning pin is worn in the positioning hole, positioning spring is worn on the positioning pin, and the two ends of the positioning spring are respectively connected between the tail end of the positioning pin and the outside of the limit ring.
[0009] As preferred, one-way valve is respectively arranged on the liquid inlet pipe and the liquid outlet pipe.
[0010] The beneficial effects of the present application are as follows:
[0011] 1, by pulling the fixed pin, the top end of the fixed pin can be pulled out from the connecting ring, at this time the box cover can be pulled up, so as to drive the connecting ring to move out of the liquid inlet box, at the same time, a number of return springs are stretched to generate elastic force, when the inside of the liquid inlet box is cleaned, the box cover can be reinstalled, so that the connecting ring is reembedded into the upper end of the liquid inlet box, and the fixed pin is driven back to the initial position by the reset action of the return spring, so that the fixed pin is again inserted into the connecting ring, finally the fixation of the connecting ring can be realized, so as to realize the fixation between the box cover and the liquid inlet box. By disassembling the box cover, the inside of the liquid inlet box can be cleaned, so that different reagents can be added to the rotary evaporator body to prevent the residue of the previous experiment.
[0012] 2, the output shaft of the electric push rod can drive the connecting shaft to move up and down, so as to drive the piston to slide up and down in the liquid inlet box, the liquid supply mechanism can provide raw materials to the liquid inlet box, when the piston moves up, the raw materials can be sucked into the liquid inlet box through the liquid inlet pipe, and when the piston moves down, the raw materials can be discharged to the liquid outlet pipe, finally the raw materials can be transported to the rotary evaporator body through the hose, by setting two one-way valves, the raw materials can only flow in one direction in the liquid inlet pipe and the liquid outlet pipe, and with the reciprocating movement of the piston up and down, continuous feeding can be realized in the rotary evaporator body, without disassembling the distillation flask on the rotary evaporator body, so as to save time and improve the distillation efficiency.
[0013] 3, when the connecting shaft moves up and down, it can drive the connecting seat to move up and down, so as to drive the connecting rod to move up and down, finally it can drive the sliding ring to slide up and down along the slide rod, and at the same time it can drive the pointer to move up and down, so it can point to the position of the indicating scale, and at the same time adjust the position of the limiting ring, that is, limit the lowest movement of the sliding ring, so as to ensure that the raw materials of the reagent inhaled into the liquid inlet box and discharged from the liquid inlet box are consistent each time, so as to adjust the capacity of the reagent raw materials added to the rotary evaporator body, greatly improving the practicability of the whole device, so as to be popularized and used. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a structural schematic diagram of the embodiment;
[0015] Fig. 2 It is a structural schematic diagram of the inside of the liquid inlet box in the embodiment;
[0016] Fig. 3 It is a partial structural schematic diagram of the embodiment.
[0017] Label: 1, base; 2, rotary evaporator body; 3, placing seat; 4, liquid inlet box; 5, box cover; 6, bracket; 7, electric push rod; 8, connecting shaft; 9, piston; 10, connecting seat; 11, pointer; 12, indicating scale; 13, slide bar; 14, sliding ring; 15, connecting rod; 16, limiting ring; 17, liquid level tube; 18, liquid inlet tube; 19, liquid outlet tube; 20, hose; 21, liquid supply mechanism; 22, connecting ring; 23, fixed pin; 24, reset spring; 25, liquid supply tank; 26, mounting bracket; 27, positioning pin; 28, positioning hole; 29, positioning spring; 30, one-way valve. DETAILED DESCRIPTION
[0018] The following description is only a preferred embodiment of the utility model, the protection scope is not only limited to this embodiment, and belongs to the protection scope of the utility model for any technical scheme under the idea of the utility model. The same parts are indicated by the same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.
[0019] As shown in Figs. 1 to 3 A rotary evaporator capable of continuous feeding, comprising a base 1, the upper end of the base 1 is provided with a rotary evaporator body 2 and a placing seat 3, the upper end of the placing seat 3 is fixedly provided with a liquid inlet box 4, the upper end of the liquid inlet box 4 is provided with a detachable box cover 5, the inside of the liquid inlet box 4 can be cleaned by detaching the box cover 5, so that different reagents can be added to the rotary evaporator body 2 to prevent the residue of the reagents from the previous experiment. The lower end of the box cover 5 is fixedly provided with a connecting ring 22, and the connecting ring 22 is located on the inner side of the liquid inlet box 4 and is in close contact with the inner wall of the liquid inlet box 4. A plurality of fixed pins 23 are arranged on the outer side of the liquid inlet box 4, the top end of each fixed pin 23 is provided with the connecting ring 22, a reset spring 24 is arranged on each fixed pin 23, and the two ends of the reset spring 24 are connected between the tail end of the fixed pin 23 and the outer wall of the liquid inlet box 4. By pulling the fixed pin 23, the top end of the fixed pin 23 can be pulled out of the connecting ring 22. At this time, the box cover 5 can be pulled upwards to drive the connecting ring 22 to move out of the liquid inlet box 4. At the same time, the plurality of reset springs 24 are stretched to generate elastic force. When the inside of the liquid inlet box 4 is cleaned, the box cover 5 can be reinstalled to make the connecting ring 22 re-embedded into the upper end of the liquid inlet box 4, and the fixed pins 23 are driven to return to the initial position by the reset action of the plurality of reset springs 24, so that the fixed pins 23 are again inserted into the connecting ring 22, and finally the fixing of the connecting ring 22 is realized, thereby realizing the fixing between the box cover 5 and the liquid inlet box 4.
[0020] The top end of the box cover 5 is fixedly provided with a support 6, the upper end of the support 6 is provided with an electric push rod 7, the inner side of the support 6 is provided with a connecting shaft 8, the output shaft of the electric push rod 7 penetrates the support 6 and is fixedly connected with the upper end of the connecting shaft 8, the inner side of the liquid inlet box 4 is provided with a movable piston 9, the lower end of the connecting shaft 8 penetrates the box cover 5 and is fixedly connected with the upper end of the piston 9, the output shaft of the electric push rod 7 can drive the connecting shaft 8 to move up and down, so as to drive the piston 9 to slide up and down in the liquid inlet box 4. The lower side of the liquid inlet box 4 is connected with a liquid inlet pipe 18 and a liquid outlet pipe 19, the liquid outlet pipe 19 is connected with a hose 20, and the other end of the hose 20 is connected with the rotary evaporator body 2, the other end of the liquid inlet pipe 18 is connected with a liquid supply mechanism 21, the liquid supply mechanism 21 can supply raw reagent into the liquid inlet box 4, when the piston 9 moves upward, the raw reagent can be sucked into the liquid inlet box 4 through the liquid inlet pipe 18, and when the piston 9 moves downward, the raw reagent can be discharged into the liquid outlet pipe 19, and finally can be transported into the rotary evaporator body 2 through the hose 20. The liquid supply mechanism 21 comprises a liquid supply tank 25, one side of the liquid inlet box 4 is connected with a mounting bracket 26, and the liquid supply tank 25 is mounted on the mounting bracket 26, the lower end of the liquid supply tank 25 is connected with the other end of the liquid inlet pipe 18, and the liquid supply tank 25 can store the reagent raw material.
[0021] The liquid inlet pipe 18 and the liquid outlet pipe 19 are respectively provided with a one-way valve 30, by arranging two one-way valves 30, the raw reagent can only flow in one direction in the liquid inlet pipe 18 and the liquid outlet pipe 19, and with the reciprocating up and down movement of the piston 9, the rotary evaporator body 2 can be continuously fed, without disassembling the distillation flask on the rotary evaporator body 2, thereby saving time and improving distillation efficiency.
[0022] The connecting shaft 8 is fixedly provided with a connecting seat 10, one side of the connecting seat 10 is fixedly provided with a pointer 11, the upper end of the box cover 5 is fixedly provided with an indicating scale 12, and the indicating scale 12 cooperates with the pointer 11, the upper end of the box cover 5 is further fixedly provided with a sliding rod 13, the sliding rod 13 is penetrated with a slidable sliding ring 14, the other side of the connecting seat 10 is fixedly provided with a connecting rod 15, and the other end of the connecting rod 15 is fixedly connected with the sliding ring 14, the sliding rod 13 is further provided with an adjustable limiting ring 16, when the connecting shaft 8 moves up and down, the connecting seat 10 moves up and down, thereby driving the connecting rod 15 to move up and down, and finally driving the sliding ring 14 to slide up and down along the sliding rod 13, and driving the pointer 11 to move up and down, so that the pointer 11 can point to the position of the indicating scale 12, and the position of the limiting ring 16 can be adjusted at the same time, thereby limiting the lowest movement limit of the sliding ring 14, so as to ensure that the reagent raw material sucked into the liquid inlet box 4 and discharged from the liquid inlet box 4 is consistent each time, so as to adjust the capacity of the reagent raw material added into the rotary evaporator body 2, greatly improving the practicability of the device as a whole, so as to be popularized and used.
[0023] The side of the liquid inlet box 4 is further provided with a liquid level pipe 17, and the liquid level pipe 17 is matched with the indicating scale 12, the capacity of the reagent raw material in the liquid inlet box 4 can be observed through the liquid level pipe 17, and the reagent capacity entering or discharging the liquid inlet box 4 can be adjusted in cooperation with the indicating scale 12 and the pointer 11. The two sides of the limiting ring 16 are respectively provided with a positioning pin 27, a plurality of positioning holes 28 are arranged on the sliding rod 13, the positioning pin 27 is arranged in the positioning hole 28, the positioning pin 27 is arranged with a positioning spring 29, and the two ends of the positioning spring 29 are respectively connected between the tail end of the positioning pin 27 and the outside of the limiting ring 16. By pulling the positioning pin 27, the top end of the positioning pin 27 can be pulled out of the positioning hole 28, at this time, the limiting ring 16 can be moved up and down, so that the position of the limiting ring 16 is adjusted, and at the same time, the positioning spring 29 is stretched to generate elastic force. When the limiting ring 16 moves to the appropriate position, the positioning spring 29 can drive the positioning pin 27 to return to the initial position, so that the top end of the positioning pin 27 can be inserted into the positioning hole 28 again, and finally the position of the limiting ring 16 can be fixed.
[0024] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the utility model, and it should be understood that the above description is only for specific embodiments of the utility model and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A continuous feed rotary evaporator characterized by, The utility model provides a rotatory evaporator, including base (1), the upper end of base (1) is provided with rotatory evaporator body (2) and the seat (3) of placing, the upper end of seat (3) is fixed with liquid inlet box (4), the upper end of liquid inlet box (4) is provided with detachable box cover (5), the top of box cover (5) is fixed with support (6), the upper end of support (6) is installed electric push rod (7), the inside of support (6) is provided with connecting shaft (8), the output shaft of electric push rod (7) passes through support (6) and is fixedly connected with the upper end of connecting shaft (8), the inside of liquid inlet box (4) is provided with movable piston (9), the lower end of connecting shaft (8) passes through box cover (5) and is fixedly connected with the upper end of piston (9), the fixedly connected with the upper end of piston (9) of connecting shaft (8) is fixedly connected with the upper end of piston (9), the upper end of box cover (5) is fixed with indicating scale (12), and the indicating scale (12) is matched with the pointer (11), the upper end of box cover (5) is still fixed with slide bar (13), the slide bar (13) is provided with the slide ring (14) of being slidably passed through, the other side of connecting seat (10) is fixed with connecting rod (15), and the other end of connecting rod (15) is fixedly connected with the slide ring (14), the slide bar (13) is still provided with adjustable limit ring (16), one side of liquid inlet box (4) is also provided with liquid level tube (17), and the liquid level tube (17) is matched with the indicating scale (12), the lower side of liquid inlet box (4) is connected with liquid inlet pipe (18) and liquid outlet pipe (19), the liquid outlet pipe (19) is connected with hose (20), and the other end of hose (20) is communicated with rotatory evaporator body (2), the other end of liquid inlet pipe (18) is connected with liquid supply mechanism (21).
2. A rotary evaporator according to claim 1, wherein The lower end of box cover (5) is fixed with connecting ring (22), and the connecting ring (22) is located in the inside of liquid inlet box (4) and is attached with the inner wall of liquid inlet box (4), the outside of liquid inlet box (4) is provided with a plurality of fixed pins (23), the top of a plurality of fixed pins (23) is respectively provided with connecting ring (22), each fixed pin (23) is respectively provided with reset spring (24), and the both ends of reset spring (24) are connected between the tail end of fixed pin (23) and the outer wall of liquid inlet box (4).
3. A rotary evaporator capable of continuous feeding according to claim 2, characterized in that The liquid supply mechanism (21) includes a liquid supply tank (25), one side of the liquid inlet box (4) is connected with a mounting bracket (26), and the liquid supply tank (25) is installed on the mounting bracket (26), the lower end of the liquid supply tank (25) is connected with the other end of the liquid inlet pipe (18).
4. A rotary evaporator according to claim 3, wherein The both sides of the limit ring (16) are respectively provided with a positioning pin (27), the slide bar (13) is provided with a plurality of positioning holes (28), and the positioning pin (27) is provided in the positioning hole (28), the positioning pin (27) is provided with a positioning spring (29), and the both ends of the positioning spring (29) are respectively connected between the tail end of the positioning pin (27) and the outside of the limit ring (16).
5. A rotary evaporator according to claim 4, wherein The inlet pipe (18) and the outlet pipe (19) are respectively provided with a one-way valve (30).