Rose petal essential oil extraction device

Abstract

The application provides a rose petal essential oil extraction device, which comprises a main box, an extraction cup, a clamping device, a liquid inlet pipeline and a liquid outlet pipeline are arranged in the main box, an extraction cavity is formed in the extraction cup, a liquid inlet is arranged at the top of the extraction cavity, and a liquid outlet is arranged at the bottom of the extraction cavity; the clamping device is used for clamping the extraction cup and comprises lower clamping blocks for clamping the bottom surface of the extraction cup and upper clamping blocks for clamping the top surface of the extraction cup; the liquid inlet pipeline comprises a liquid inlet pipe for being in communication with the liquid inlet, a high-pressure pump and a pressure gauge are arranged on the liquid inlet pipeline, and the liquid inlet end of the liquid inlet pipeline is connected with a solvent tank; the liquid outlet pipeline comprises a liquid outlet pipe for being in communication with the liquid outlet, and a liquid storage tank is arranged at the end of the liquid outlet pipeline. The rose petal essential oil extraction device has a compact structure, can realize automatic access and extraction of the extraction cup, has high extraction efficiency and good effect, and is suitable for batch extraction experiments.

Description

TECHNICAL FIELD

[0001] The present application relates to an extraction device, in particular to a rose petal essential oil extraction device. BACKGROUND

[0002] Rose essential oil is the essence of rose flowers, known as "liquid gold", containing hundreds of chemical substances, is a high-quality product in the perfume oil, is an important and expensive raw material for manufacturing high-grade and valuable perfumes, not only for the manufacture of cosmetics, skin care, hair care and other cosmetics, but also widely used in medicine and food.

[0003] The solvent extraction method for extracting rose essential oil has the advantage of high extraction rate, and the solvent extraction method in the prior art is inconvenient to operate, especially in the extraction experiment of multiple plants, the workload of the experimenters is large, and the extraction efficiency is low. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a rose petal essential oil extraction device which is compact in structure, can realize automatic switching and automatic extraction, has high extraction efficiency and good effect.

[0005] The present application provides a rose petal essential oil extraction device, which comprises a main machine box 1, and the main machine box is provided with:

[0006] An extraction cup is formed with an extraction cavity in the extraction cup, the top of the extraction cavity is provided with a liquid inlet, and the bottom of the extraction cavity is provided with a liquid outlet;

[0007] A clamping device is used for clamping the extraction cup, the clamping device comprises a lower clamping block for clamping the bottom surface of the extraction cup and an upper clamping block for clamping the top surface of the extraction cup, and the upper clamping block and the lower clamping block form a clamping area for clamping the extraction cup;

[0008] A liquid inlet pipeline comprises a liquid inlet pipe for communicating with the liquid inlet, the liquid inlet pipeline is provided with a high-pressure pump 101b and a pressure gauge, and the liquid inlet end of the liquid inlet pipeline 101 is connected with a solvent tank 101a;

[0009] A liquid outlet pipeline comprises a liquid outlet pipe for communicating with the liquid outlet, and the end of the liquid outlet pipeline is provided with a liquid storage tank 109.

[0010] Further, it further comprises a flushing pipeline 102 for communicating with the liquid inlet, the flushing pipeline is provided with a flushing pump, and the liquid inlet pipe of the flushing pipeline is connected with a water tank.

[0011] Further, it further comprises an auxiliary liquid discharge pipeline 104 for communicating with the liquid inlet, and the auxiliary liquid discharge pipeline 104 is provided with an air pump 106 and a filter 1041.

[0012] Further, the clamping device comprises a clamping cylinder 107 parallel to the extraction cup, the clamping cylinder 107 is a double-shaft cylinder, the upper clamping block and the lower clamping block are respectively arranged at the two output ends of the clamping cylinder, the upper clamping block is provided with a first valve seat for butting against the liquid inlet, the first valve seat is connected with the liquid inlet pipeline, the flushing pipeline and the auxiliary liquid discharge pipeline, the lower clamping block is provided with a second valve seat for butting against the liquid outlet, and the second valve seat is connected with the liquid outlet pipeline.

[0013] Further, the main box is rotatably provided with a first material placing disc 12 and a second material placing disc 13, the first material placing disc is uniformly provided with first material placing holes for vertically placing extraction cups, the rotation path of the first material placing disc is provided with a first feeding and discharging station and an extraction station, the clamping device is arranged at the extraction station and can clamp the extraction cup at the station, and the second material placing disc 13 is uniformly provided with second material placing holes for placing liquid storage tanks 109, the rotation path of the second material placing disc is provided with a second feeding and discharging station and a liquid receiving station, and the liquid outlet end of the liquid outlet pipeline is located at the liquid receiving station and can send the discharged solution into the liquid storage tank at the station.

[0014] Further, the extraction cup comprises a cylindrical cup body 2, an extraction cavity with an open upper end is formed in the cup body 2, a plurality of filter holes are formed in the bottom surface of the extraction cavity, the upper end and the lower end of the cup body 2 are respectively threadedly connected with an upper cover assembly 3 and a lower cover assembly, the upper cover assembly 3 is provided with a one-way assembly capable of allowing liquid or air to enter the extraction cavity in one direction, and the lower cover assembly is provided with a pneumatic valve assembly capable of being opened by pneumatic pressure and realizing liquid outlet.

[0015] Further, the upper cover assembly is provided with a pneumatic valve assembly capable of being opened by pneumatic pressure and realizing pressure relief.

[0016] Further, the upper cover assembly and the lower cover assembly comprise a cover body, an upper fixed disc 4, a moving disc 5 and a lower fixed disc 6 which are sequentially arranged in the cover body from top to bottom and are attached to each other, the upper end of the upper fixed disc 4 is provided with a liquid inlet cavity 300a, the center of the cover body is provided with a liquid inlet 300 which is in communication with the liquid inlet cavity 300a, the upper fixed disc 4 is uniformly provided with first hole bodies 40 in the circumferential direction, the lower fixed disc 6 is uniformly provided with second hole bodies 60 which are coaxial with the first hole bodies 40 and have the same number as the first hole bodies 40, the moving disc can realize radial rotation and is uniformly provided with third hole bodies 50 which have the same number as the first hole bodies or the second hole bodies and are located on the same circle of division as the first hole bodies or the second hole bodies in the circumferential direction, and the cover body is provided with a pneumatic valve assembly for rotating the moving disc 5 and realizing opening or closing.

[0017] Further, the pneumatic valve assembly comprises a first arc-shaped sliding cavity 31 coaxial with the liquid inlet cavity 300a and circumferentially distributed, the moving disc 5 is provided with a first sliding plug 52 capable of being clamped into the first arc-shaped sliding cavity 31 and achieving sliding fit, the first sliding plug separates the first arc-shaped sliding cavity 31 into a sealed first chamber 311 and a second chamber 312, the first chamber is provided with an elastic component 53 enabling the moving disc to have a rotating movement trend and enabling the third hole body to be dislocated from the first hole body to achieve closing, the top surface of the cover body is provided with an annular groove 301 coaxial with the liquid inlet 300, the annular groove is provided with a gas channel 302 communicating with the second chamber and used for inputting compressed gas to push the first sliding plug 52 to rotate and enable the third hole body to communicate with the first hole body.

[0018] Further, the end portions of the first chamber and the second chamber are provided with limiting portions used for contacting the end portions of the first sliding plug 52 and achieving rotation limiting.

[0019] Further, the end portion of the first chamber is provided with a protrusion and forms a first spring seat, the end portion of the first sliding plug is provided with a second spring seat 521 facing the first spring seat, and the elastic component 53 is a spring and is arranged between the first spring seat and the second spring seat.

[0020] Further, the upper cover assembly is provided with a one-way assembly, the one-way assembly comprises a second arc-shaped sliding cavity 501 coaxial with the moving disc and circumferentially distributed on the upper bottom surface of the moving disc, the lower bottom surface of the upper fixed disc 4 is provided with a second sliding plug 42 capable of being clamped into the second arc-shaped sliding cavity 501, the second sliding plug separates the second arc-shaped sliding cavity into a front chamber and a rear chamber, the first hole body communicates with the front chamber, the third hole body 50 communicates with the rear chamber, the solution continuously entering the front chamber can generate pressure and enable the second sliding plug to relatively slide and move to the rear chamber, thereby enabling the first hole body to communicate with the third hole body, the cover body is provided with an elastic component enabling the moving disc to have a reverse rotating trend and enabling the sliding plug to slide to between the first hole body and the third hole body and achieve blocking.

[0021] Further, the cover body is formed with a mounting cavity with an open lower end, the upper bottom surface of the mounting cavity is provided with an annular body protrusion and separates the mounting cavity into a coaxial inner region and an outer region, the upper fixed disc 4 is mounted in the inner region and separates the inner region into a sealed liquid inlet cavity 300a, the lower fixed disc 6 is fixed in the mounting cavity and has a gap with the upper fixed disc 4 and forms a working cavity, the moving disc 5 is rotatably mounted in the working cavity, and the upper end surface and the lower end surface of the moving disc 5 are respectively in sealing abutment with the end surfaces of the upper fixed disc 4 and the lower fixed disc 6.

[0022] Further, the side wall of the inner area is circumferentially distributed with first positioning protrusions 32, the side wall of the upper setting disc is provided with first positioning clamping grooves 410 capable of clamping the first positioning protrusions and achieving radial positioning, and the side wall of the inner area is provided with first clamping springs 81 capable of contacting the bottom surface of the upper setting disc and achieving axial positioning.

[0023] Further, the installation cavity comprises a first cavity 30a, a second cavity 30b, a third cavity 30c, a fourth cavity 30d and a fifth cavity 30e which are sequentially arranged from top to bottom and sequentially increase in diameter, an annular protrusion is arranged on the bottom surface of the second cavity, the upper setting disc is installed in the second cavity, the movable disc is rotatably installed in the third cavity, the lower setting disc is installed in the fourth cavity, and the side wall of the fifth cavity is provided with a first internal thread for connecting with the cup body.

[0024] Further, a third step surface for axially positioning the lower setting disc is formed between the third cavity and the fourth cavity, the third step surface is circumferentially distributed with first positioning holes 35, and the lower setting disc is provided with positioning pins 61 capable of clamping into the first positioning holes and achieving radial positioning; the fourth cavity is threadedly connected with a compression ring 7 which contacts the bottom surface of the lower setting disc and achieves compression.

[0025] Further, the side wall of the fourth cavity is provided with a second clamping spring 82 for contacting the compression ring and achieving axial positioning.

[0026] Further, the first valve seat and the second valve seat comprise a cylindrical valve seat body 9, the lower end surface of the valve seat body is provided with a cylindrical interface 91 capable of being inserted into the liquid inlet hole and an annular protrusion 92 coaxial with the cylindrical interface and capable of being inserted into the annular groove of the top of the cover body, the outer extension of the cylindrical interface and the outer extension of the annular protrusion are provided with sealing pads, the end portion of the cylindrical interface is provided with a liquid inlet channel, the inlet end of the liquid inlet channel is connected with a liquid inlet pipeline, a flushing pipeline and an auxiliary liquid discharge pipeline; the end portion of the annular protrusion is provided with an air hole 920 which is in communication with an air cavity in the valve seat body, and the side wall of the valve seat body is provided with an air source interface 93 in communication with the air cavity.

[0027] The rose petal essential oil extraction device has the advantages that the clamping device can quickly fix the extraction cup and make the extraction cup connected to the extraction pipeline for extraction, the extraction cup can be quickly replaced according to different process requirements, the device is flexible to use, convenient and labor-saving to operate, and high in efficiency; the valve body arranged on the clamping block can realize automatic docking with the extraction cup, automatic centering, error compensation, and high docking precision, and greatly improves the fixing reliability and docking reliability; the rotary material placing seat can sequentially connect multiple extraction cups to the extraction pipeline and realize automatic extraction, is high in automation degree, greatly improves the sample extraction efficiency, and reduces the working intensity of researchers; the double-cover extraction cup can be quickly disassembled, is convenient and labor-saving to install, and is convenient for cleaning the extraction cavity; the one-way assembly arranged in the upper cover assembly can realize one-way opening into the extraction cavity through the solution pressure, is convenient, fast and high in safety for liquid inlet, ensures the internal pressure, and improves the extraction efficiency and effect; the pneumatic valve arranged on the upper cover assembly can be quickly opened through compressed air, realizes automatic pressure relief, ensures smooth liquid discharge, avoids liquid splashing, and is safe and reliable to use; the rotary valve body structure is compact in structure, small in installation volume, high in pressure bearing capacity, stable and reliable to use; the disassembled cover assembly is convenient and high in precision to process, low in cost, convenient to assemble, beneficial to daily maintenance and maintenance, and long in service life; the flushing pipeline can automatically flush the pipeline, especially the liquid outlet pipeline, remove residual solution in the pipeline, and then facilitate different extraction operations next time, ensure the extraction effect, and facilitate full-automatic extraction operation; the auxiliary liquid discharge pipeline can fill air and squeeze out all the solution in the pipeline during liquid discharge, ensures full liquid discharge, avoids solution residue in the pipeline, and is good in liquid discharge effect; the rose petal essential oil extraction device is compact in structure, can realize automatic connection and extraction of the extraction cup, is high in extraction efficiency and good in effect, and is suitable for batch extraction experiments. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 Fig. 1 is a pipeline connection schematic diagram of the rose petal essential oil extraction device;

[0029] Figure 2 Fig. 3 is a structure schematic diagram of the rose petal essential oil extraction device;

[0030] Figure 3 Fig. 5 is a structure schematic diagram of the extraction cup of the rose petal essential oil extraction device;

[0031] Figure 4 Fig. 7 is another angle structure schematic diagram of the extraction cup of the rose petal essential oil extraction device;

[0032] Figure 5 Fig. 9 is a sectional view of the extraction cup of the rose petal essential oil extraction device;

[0033] Figure 6It is the explosion structure schematic view of the extraction cup of the rose petal essential oil extraction device of the application;

[0034] Figure 7 It is the structure schematic view of the upper cover assembly of the rose petal essential oil extraction device of the application;

[0035] Figure 8 It is the explosion structure schematic view of the upper cover assembly of the rose petal essential oil extraction device of the application;

[0036] Figure 9 It is the longitudinal section view of the upper cover assembly of the rose petal essential oil extraction device of the application;

[0037] Figure 10 It is the transverse section view of the upper cover assembly of the rose petal essential oil extraction device of the application;

[0038] Figure 11 It is the partial enlarged view of the upper cover assembly of the rose petal essential oil extraction device of the application;

[0039] Figure 12 It is the structure schematic view of the cover body of the rose petal essential oil extraction device of the application;

[0040] Figure 13 It is another angle structure schematic view of the cover body of the rose petal essential oil extraction device of the application;

[0041] Figure 14 It is the bottom view of the cover body of the rose petal essential oil extraction device of the application;

[0042] Figure 15 It is the section view of the cover body of the rose petal essential oil extraction device of the application;

[0043] Figure 16 It is the structure schematic view of the upper fixed disc of the rose petal essential oil extraction device of the application;

[0044] Figure 17 It is another angle structure schematic view of the upper fixed disc of the rose petal essential oil extraction device of the application;

[0045] Figure 18 It is the structure schematic view of the moving disc of the rose petal essential oil extraction device of the application;

[0046] Figure 19 It is the structure schematic view of the lower fixed disc of the rose petal essential oil extraction device of the application;

[0047] Figure 20 It is another angle structure schematic view of the lower fixed disc of the rose petal essential oil extraction device of the application;

[0048] Figure 21 It is the structure schematic view of the pressing ring of the rose petal essential oil extraction device of the application;

[0049] Figure 22 Structure diagram of valve seat of rose petal essential oil extraction device of the present application; DETAILED DESCRIPTION

[0050] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0051] Reference Figures 1-2 The present application provides a rose petal essential oil extraction device, which comprises a main box 1, an extraction cup, a clamping device, a liquid inlet pipeline and a liquid outlet pipeline are arranged in the main box.

[0052] The extraction cup is used for extraction operation, which is in a cylindrical structure, and an extraction cavity is arranged in the extraction cup for placing rose petals, a liquid inlet is arranged at the top of the extraction cavity for inputting extraction solvent, and a liquid outlet is arranged at the bottom of the extraction cavity for discharging the extracted solution.

[0053] The clamping device is used for clamping the extraction cup, which comprises a clamping cylinder 107 parallel to the extraction cup, which is a double-shaft cylinder, i.e. has two output shafts, the directions of the two output shafts are opposite, and the two output shafts are respectively located at the two ends of the cylinder, and can realize synchronous extension or synchronous shortening, i.e. synchronous extension or synchronous shortening, and an upper clamping block and a lower clamping block are respectively fixed at the ends of the two output shafts, wherein the upper clamping block and the lower clamping block form a clamping area for clamping the extraction cup, specifically, the upper clamping block is used for clamping the top surface of the extraction cup, and the lower clamping block is used for clamping the bottom surface of the extraction cup, and a first valve seat for connecting with the liquid inlet is arranged on the upper clamping block, the first valve seat is connected with the liquid inlet pipeline, the flushing pipeline and the auxiliary liquid outlet pipeline, and is used for liquid inlet, flushing and auxiliary air liquid discharge, and a second valve seat for connecting with the liquid outlet is arranged on the lower clamping block, the second valve seat is connected with the liquid outlet pipeline, and is used for liquid discharge.

[0054] The liquid inlet pipeline is used for liquid inlet, i.e. inputting extraction solvent, which comprises a liquid inlet pipeline 101, the output end of the liquid inlet pipeline 101 is connected with the liquid inlet, specifically, the first valve seat, a high-pressure pump 101b, a pressure gauge and a switch valve are arranged on the liquid inlet pipeline, which can generate internal pressure to form a certain pressure in the extraction cavity, improve the extraction efficiency and effect, and the liquid inlet end of the liquid inlet pipeline 101 is connected with a solvent tank 101a; in the embodiment, a heater 101c is arranged on the liquid inlet pipeline for heating the liquid inlet solution to improve the extraction effect and efficiency, and a temperature sensor is also arranged on the liquid inlet pipeline for detecting the internal solution temperature.

[0055] The liquid outlet pipeline is used for discharging liquid, i.e. outputting solution, and comprises a liquid outlet pipeline 103, the output end of which is connected with the liquid outlet, specifically, the second valve seat, and a switch valve is arranged on the liquid outlet pipeline, and the output end of the liquid outlet pipeline is connected with the liquid storage tank 109.

[0056] In order to facilitate cleaning of the pipeline (liquid inlet pipeline, liquid outlet pipeline) or the extraction cup, a flushing pipeline 102 is further arranged in the embodiment, the output end of which is connected with the liquid inlet, specifically, the first valve seat, and a flushing pump and a switch valve are arranged on the flushing pipeline, and the liquid inlet end of the flushing pipeline 102 is connected with a water tank, which can contain clean water or other cleaning solution.

[0057] In order to fully discharge the solution in the pipeline and the extraction cavity, the embodiment further comprises an auxiliary liquid outlet pipeline 104, the output end of which is connected with the liquid inlet, specifically, the first valve seat, and a gas pump 106 and a filter 1041 are arranged on the auxiliary liquid outlet pipeline 104, and at the same time, the gas pump is connected with the clamping air cylinder through a pipeline 105, for driving the air cylinder to act.

[0058] Referring to Figure 2 , the main box 1 is a cuboid box structure as a whole, which comprises a first area and a second area arranged adjacent to each other, a front-end open placement cavity is arranged on the first area, for placing a solvent tank 101a and a water tank 102a, wherein the solvent tank 101a and the water tank 102a can be replaced according to different working conditions, a transparent door 15 is arranged at the open end of the placement cavity, and an operation panel 16 is arranged on the top of the placement cavity, for operation and display; the second area has a two-layer structure, a first material placing disc 12 is rotatably arranged on the upper layer, and a second material placing disc 13 is rotatably arranged on the lower layer, the rotation axes of the first material placing disc and the second material placing disc are perpendicular to the horizontal plane, a plurality of first material placing holes are uniformly distributed on the circumference of the first material placing disc, the first material placing holes are used for vertically placing the extraction cup, and a first feeding and discharging station and an extraction station are arranged on the rotation path of the first material placing disc, the first feeding and discharging station is used for placing or taking out the extraction cup, a clamping device is arranged on the extraction station, for clamping the extraction cup on the station, so as to realize the processes of liquid inlet, extraction and liquid outlet; a plurality of second material placing holes are uniformly distributed on the circumference of the second material placing disc 13, the second material placing holes are used for placing the liquid storage tank 109, a second feeding and discharging station and a liquid receiving station 14 are arranged on the rotation path of the second material placing disc, the second feeding and discharging station is used for placing or taking out the liquid storage tank, and the liquid outlet end of the liquid outlet pipeline is located on the liquid receiving station, directly above the liquid storage tank on the station, so that the discharged solution can be sent into the liquid storage tank on the station, to realize liquid outlet.

[0059] Referring to Figures 3-22In the application, the extraction cup comprises a cylindrical cup body 2 made of high-strength engineering plastic or metal, which can withstand certain pressure and is provided with a heat insulation layer inside the cup body to have certain heat preservation function; an extraction cavity with open upper end is formed in the cup body 2, and a plurality of filter holes are penetrated through the bottom surface of the extraction cavity; one or more filter screens are additionally provided inside in actual use; the upper end of the cup body 2 is threadedly connected with an upper cover assembly 3, and the lower end of the cup body 2 is threadedly connected with a lower cover assembly, so that a sealed extraction cavity capable of withstanding certain pressure is formed inside the cup body 2; a one-way assembly is provided in the upper cover assembly 3, which can allow liquid or air to enter the extraction cavity in one direction; and a pneumatic valve assembly is provided in the lower cover assembly, which can be opened by pneumatic pressure to realize liquid discharge; in order to improve the safety during liquid discharge and avoid splashing caused by excessive pressure, a pneumatic valve assembly is also provided in the upper cover assembly in the embodiment, which can be opened by pneumatic pressure to discharge and reduce the internal pressure before liquid discharge.

[0060] Referring to Figures 8-11 The upper cover assembly and the lower cover assembly have basically the same structure, specifically comprising a cover body, an upper fixed disc 4, a moving disc 5 and a lower fixed disc 6 are arranged in the cover body and coaxially arranged and sequentially attached from top to bottom, a chamber is arranged at the upper end of the upper fixed disc 4 to form a liquid inlet cavity 300a, a liquid inlet 300 is arranged at the center of the cover body and communicates with the liquid inlet cavity 300a for liquid inlet, the liquid inlet 300 is conical in the embodiment and has certain centering function during docking; a first hole body 40 is arranged on the upper fixed disc 4, the first hole body 40 is a plurality of and circumferentially distributed, and a second hole body 60 is circumferentially distributed on the lower fixed disc 6, the number of the second hole body 60 is the same as that of the first hole body and coaxially corresponds to the first hole body, the moving disc can rotate radially, a third hole body 50 is circumferentially distributed on the moving disc, the number of the third hole body 50 is the same as that of the first hole body or the second hole body, and the center of the third hole body 50 forms the same index circle as the index circle of the first or second hole body, i.e. the first hole body, the second hole body and the third hole body are located on the same index circle, a pneumatic valve assembly is arranged in the cover body, which can rotate the moving disc 5 to align or misalign the third hole body with the first hole body and the second hole body, thereby realizing opening or closing.

[0061] Referring to Figure 10 , Figure 14 and Figure 18, the pneumatic valve assembly comprises at least two first arc-shaped slide cavities 31 which are uniformly distributed in the axial direction, the first arc-shaped slide cavities 31 are arc-shaped and coaxial with the liquid inlet, and a first slide plug 52 corresponding to the first arc-shaped slide cavities 31 is arranged on the moving disc 5, the cross-sectional shape of the first slide plug 52 is the same as that of the first arc-shaped slide cavities, the first slide plug can be clamped into the first arc-shaped slide cavities 31 and achieve a sliding fit, and the first slide plug separates the first arc-shaped slide cavities 31 into a sealed first chamber 311 and a second chamber 312; an elastic component 53 is arranged in the first chamber, the elastic component 53 makes the moving disc have a rotating movement tendency, the rotating movement tendency makes the third hole body dislocate from the first hole body, and then realizes closing, specifically, an end of the first chamber is provided with a protrusion to form a first spring seat, and a second spring seat 521 is arranged at an end of the first slide plug and faces the first spring seat, the elastic component 53 is a spring and is arranged between the first spring seat and the second spring seat at two ends, and then realizes installation of the elastic component, which makes the moving disc have a closing movement state; a ring-shaped groove 301 is arranged on the top surface of the cover body and is coaxial with the liquid inlet 300, a chamfer is arranged on the edge of the ring-shaped groove 301 to form an inclined guide surface, which can realize automatic centering when the valve seat is docked and compensate for errors, and a gas channel 302 is arranged in the ring-shaped groove 301 and communicates with the second chamber, which is used for inputting compressed gas and then pushing the first slide plug 52 to rotate against the spring force, so that the third hole body is aligned with the first hole body and is communicated; in the embodiment, limit portions are arranged at the ends of the first chamber and the second chamber, which are used for contacting the ends of the first slide plug 52 and then realizing rotation limiting; when located at the first limit position, the third hole body is coaxial with the first hole body and the second hole body, and then realizes communication, i.e., opening; when located at the second limit position, the third hole body is dislocated from the first hole body and the second hole body, and then realizes blocking, i.e., closing.

[0062] In order to achieve better liquid inlet pressure maintaining effect, a one-way assembly is arranged in the upper cover assembly in the embodiment, which can make liquid or air enter the extraction cavity in one direction, and the one-way assembly comprises a one-way valve 61 and a one-way valve seat 62, the one-way valve 61 is arranged in the one-way valve seat 62, and the one-way valve 61 is arranged in the one-way valve seat 62. Figure 11The one-way assembly comprises a second arc-shaped sliding cavity 501 opened in the upper bottom surface of the moving disc, the second arc-shaped sliding cavity 501 is arc-shaped and coaxial with the rotation axis of the moving disc, the second arc-shaped sliding cavity 501 is multiple and uniformly distributed in the circumferential direction, and the second sliding plug 42 is arranged in the lower bottom surface of the upper fixed disc 4, the cross-sectional shape of the second sliding plug is same as the cross-sectional shape of the second arc-shaped sliding cavity, the second sliding plug can be clamped into the second arc-shaped sliding cavity 501 and achieve sliding fit, the second sliding plug separates the second arc-shaped sliding cavity into sealed front cavity and rear cavity, the first hole body communicates with the front cavity, the third hole body 50 communicates with the rear cavity, when the front cavity continuously enters the solution, pressure is generated, the front cavity has a tendency of volume expansion, the second sliding plug is pushed to generate relative sliding, the second sliding plug moves to the rear cavity and exceeds the third hole body, until the first hole body communicates with the third hole body, pressure balance is formed, in the embodiment, since the fixed disc is in a fixed state and the moving disc is in a moving state, the moving disc reversely rotates to realize the relative movement of the second sliding plug and the second arc-shaped sliding cavity, that is, in the embodiment, the second arc-shaped sliding cavity is in a moving state and the second sliding plug is in a fixed state, and then relative rotation is formed; meanwhile, the elastic component is arranged on the cover body, the elastic component makes the moving disc have a tendency of reverse rotation, the sliding plug is slid to between the first hole body and the third hole body, and then blockage is realized, in the embodiment, the elastic component is the elastic component on the pneumatic valve assembly, when the pressure of the liquid inlet is less than the elastic force of the elastic component, the second sliding plug reversely rotates under the action of the elastic force, that is, moves towards the front cavity, and the third hole body moves to the rear end of the second sliding plug to realize the blockage of the first hole body and the third hole body and realize closing; therefore, when liquid is introduced, the pneumatic valve assembly can not be opened, but the solution pressure can be directly used to directly open to realize one-way entry; when the solution has no pressure requirement or needs to be depressurized, the pneumatic valve assembly can be used to open to realize pressureless liquid introduction or depressurization.

[0063] The following describes each part of the cover body assembly:

[0064] Referring to Figures 12-21The mounting cavity is formed on the cover body and has an open lower end. An annular body protrusion is arranged on the upper bottom surface of the mounting cavity. The annular body protrusion is coaxial with the mounting cavity and separates the mounting cavity into a coaxial inner region and an outer region. The upper disc 4 is arranged in the inner region and separates the inner region into a sealed liquid inlet cavity 300a. The lower disc 6 is fixed in the mounting cavity and has a gap with the upper disc 4, forming a working cavity. The movable disc 5 is rotatably arranged in the working cavity. The upper end surface and the lower end surface of the movable disc 5 are respectively sealed and attached to the end surfaces of the upper disc 4 and the lower disc 6. The pneumatic valve assembly is arranged in the outer region. Specifically, the mounting cavity includes a first cavity 30a, a second cavity 30b, a third cavity 30c, a fourth cavity 30d, and a fifth cavity 30e arranged in sequence from top to bottom and increasing in diameter. The annular protrusion is arranged on the bottom surface of the second cavity. The upper disc is arranged in the second cavity. The first positioning protrusions 32 are uniformly distributed on the side wall of the first cavity. Meanwhile, the first positioning clamping groove 410 is arranged on the side wall of the upper disc. The first positioning clamping groove 410 can accommodate the first positioning protrusions. Thus, radial positioning is achieved. The upper annular protrusion 41 is arranged on the upper end surface of the upper disc. The upper annular protrusion can be just clamped into the first cavity. The first positioning clamping groove 410 is arranged on the upper annular protrusion. The upper disc can be just clamped into the second cavity. The sealing ring groove for arranging the sealing ring is arranged on the side wall of the upper disc. Meanwhile, the first clamping spring 81 is arranged on the side wall of the second cavity. The first clamping spring 81 can be in contact with the bottom surface of the upper disc. Thus, axial positioning is achieved. In the embodiment, the lower end edge of the upper disc is inwardly recessed to accommodate the first clamping spring and ensure the attached installation of the upper disc and the movable disc. The movable disc is rotatably arranged in the third cavity. The lower disc is arranged in the fourth cavity. Specifically, the third step surface is formed between the third cavity and the fourth cavity. The third step surface is used for axially limiting the lower disc. The first positioning holes 35 are uniformly distributed on the third step surface. Meanwhile, the positioning pins 61 corresponding to the first positioning holes are arranged on the lower disc. The positioning pins 61 can be clamped into the first positioning holes. Thus, radial positioning is achieved. The compression ring 7 is threadedly connected in the fourth cavity. The compression ring 7 is in contact with the bottom surface of the lower disc. Thus, the compression ring is tightly fixed to the lower disc. In order to improve the installation reliability and avoid loosening, the second clamping spring 82 is arranged on the side wall of the fourth cavity. The second clamping spring 82 is in contact with the lower end of the compression ring. Thus, the compression ring is fixed and avoids loosening.

[0065] When clamped, the first valve seat on the upper clamping block is in contact and abuts with the upper cover assembly, and the second valve seat on the lower clamping block is in contact and abuts with the lower cover assembly. The first valve seat and the second valve seat have the same structure. See Figure 22The valve seat body 9 comprises a cylindrical valve seat body, a coaxial cylindrical interface 91 and an annular protrusion 92 are arranged on the lower end surface of the valve seat body, the cylindrical interface 91 can be inserted into the liquid hole, the end of the cylindrical interface is provided with a chamfer, a liquid inlet channel is arranged on the end of the cylindrical interface, the inlet end of the liquid inlet channel is connected with the liquid inlet pipeline, the flushing pipeline and the auxiliary liquid outlet pipeline, the annular protrusion 92 can be inserted into the annular groove on the top of the cover body, a plurality of air holes 920 are arranged on the end of the annular protrusion, the air holes are communicated with the air cavity in the valve seat body, and a gas source interface 93 is arranged on the side wall of the valve seat body, the gas source interface 93 is used for being connected with a gas source and is used for controlling the opening of the pneumatic valve assembly.

[0066] The rose petal essential oil extraction device has the advantages that the clamping device can quickly fix the extraction cup and make the extraction cup connected with the extraction pipeline for extraction, the extraction cup can be quickly replaced according to different process requirements, the device is flexible to use, convenient and labor-saving to operate, and high in efficiency; the valve body arranged on the clamping block can realize automatic butt joint with the extraction cup, automatic centering, error compensation, high butt joint accuracy, high fixing reliability and butt joint reliability; the rotary material placing seat can sequentially connect multiple extraction cups with the extraction pipeline and realize automatic extraction, and the device is high in automation degree, high in sample extraction efficiency, and low in working intensity of researchers; the double-cover-body extraction cup can be quickly disassembled, installed conveniently and labor-saving, and the extraction cavity is convenient to clean; the one-way assembly arranged in the upper cover assembly can be opened in one direction by the solution pressure and enter the extraction cavity, and the device is convenient, fast and safe in liquid inlet, ensures internal pressure, and improves extraction efficiency and effect; the pneumatic valve arranged on the upper cover assembly can be quickly opened by compressed air, realizes automatic pressure relief, ensures smooth liquid discharge, avoids liquid splashing, and is safe and reliable in use; the rotary valve body structure is compact in structure, small in installation volume, high in pressure bearing capacity, stable and reliable in use; the disassembled cover assembly is convenient to process, high in precision, low in cost, convenient to assemble, beneficial to daily maintenance and maintenance, and long in service life; the flushing pipeline can automatically flush the pipeline, especially the liquid outlet pipeline, remove residual solution in the pipeline, and then facilitate different extraction operations next time, ensure extraction effect, and realize fully-automatic extraction operation; the auxiliary liquid outlet pipeline can fill air and squeeze out all the solution in the pipeline when discharging liquid, ensures sufficient liquid discharge, avoids solution residue in the pipeline, and is good in liquid discharge effect; the rose petal essential oil extraction device is compact in structure, can automatically connect the extraction cup and realize extraction, high in extraction efficiency and good in effect, and suitable for batch extraction experiments.

[0067] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make some improvements and refinements without departing from the technical principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A rose petal essential oil extraction device, characterized by: The main box is internally provided with: An extraction cup is internally formed with an extraction cavity, the top of the extraction cavity is provided with a liquid inlet, and the bottom of the extraction cavity is provided with a liquid outlet; A clamping device is used for clamping the extraction cup, the clamping device comprises a lower clamping block used for clamping the bottom surface of the extraction cup and an upper clamping block used for clamping the top surface of the extraction cup, a clamping area for clamping the extraction cup is formed between the upper clamping block and the lower clamping block; A liquid inlet pipeline comprises a liquid inlet pipe used for communicating with the liquid inlet, the liquid inlet pipeline is provided with a high-pressure pump and a pressure gauge, and the liquid inlet end of the liquid inlet pipeline is connected with a solvent tank; A liquid outlet pipeline comprises a liquid outlet pipe used for communicating with the liquid outlet, and the end of the liquid outlet pipeline is provided with a liquid storage tank; An auxiliary liquid discharge pipeline is further provided and is connected with the liquid inlet; The extraction cup comprises a cylindrical cup body, the cup body is internally formed with an extraction cavity with an open top end, the bottom surface of the extraction cavity is penetrated through by a plurality of filter holes, the upper end and the lower end of the cup body are respectively threadedly connected with an upper cover assembly and a lower cover assembly, the upper cover assembly is internally provided with a one-way assembly capable of allowing liquid or air to enter the extraction cavity in one direction and a pneumatic valve assembly capable of being opened by pneumatic pressure and achieving pressure relief, and the lower cover assembly is internally provided with a pneumatic valve assembly capable of being opened by pneumatic pressure and achieving liquid outlet; The upper cover assembly and the lower cover assembly comprise a cover body, an upper fixed disc, a movable disc and a lower fixed disc which are sequentially arranged in the cover body from top to bottom and are attached to each other, the upper end of the upper fixed disc is provided with a liquid inlet cavity, the center of the cover body is provided with a liquid inlet port communicating with the liquid inlet cavity, the upper fixed disc is circumferentially uniformly provided with a plurality of first hole bodies, the lower fixed disc is circumferentially uniformly provided with a plurality of second hole bodies which are coaxial with the first hole bodies and have the same number as the first hole bodies, the movable disc can be radially rotated and is circumferentially uniformly provided with a plurality of third hole bodies which have the same number as the first hole bodies or the second hole bodies and are located on the same circle of division, and the cover body is internally provided with a pneumatic valve assembly for rotating the movable disc and achieving opening or closing; The clamping device comprises a clamping cylinder which is parallel to the extraction cup, the clamping cylinder is a double-shaft cylinder, the upper clamping block and the lower clamping block are respectively arranged at the two output ends of the clamping cylinder, the upper clamping block is provided with a first valve seat used for butt joint with the liquid inlet port, the first valve seat is connected with the liquid inlet pipeline, the flushing pipeline and the auxiliary liquid discharge pipeline, and the lower clamping block is provided with a second valve seat used for butt joint with the liquid outlet port, and the second valve seat is connected with the liquid outlet pipeline; A first material placing disc and a second material placing disc are rotatably arranged on the main box, the first material placing disc is circumferentially uniformly provided with a plurality of first material placing holes used for vertically placing the extraction cup, the rotation path of the first material placing disc is provided with a first feeding and discharging station and an extraction station, the clamping device is arranged at the extraction station and can clamp the extraction cup located at the station, and the second material placing disc is circumferentially uniformly provided with a plurality of second material placing holes used for placing the liquid storage tank, the rotation path of the second material placing disc is provided with a second feeding and discharging station and a liquid receiving station, and the liquid outlet end of the liquid outlet pipeline is located at the liquid receiving station and can send the discharged solution into the liquid storage tank of the station.

2. The rose petal essential oil extraction apparatus of claim 1, wherein: The flushing pipeline is provided with a flushing pump, and a liquid inlet pipe of the flushing pipeline is connected with the water tank.

3. The rose petal essential oil extraction apparatus of claim 1, wherein: The auxiliary liquid discharge pipeline is provided with an air pump and a filter.

4. The rose petal essential oil extraction apparatus of claim 1, wherein: The pneumatic valve assembly comprises a first arc-shaped sliding cavity coaxial with the liquid inlet cavity and uniformly distributed in the circumferential direction, the moving disc is provided with a first sliding plug capable of being clamped into the first arc-shaped sliding cavity and achieving sliding fit, the first sliding plug separates the first arc-shaped sliding cavity into sealed first and second chambers, the first chamber is provided with an elastic component enabling the moving disc to have a rotating movement tendency and enabling the third hole body to be dislocated from the first hole body to achieve closing, the top surface of the cover body is provided with an annular groove coaxial with the liquid inlet, the annular groove is provided with a gas channel in communication with the second chamber and used for inputting compressed gas to push the first sliding plug to rotate and enable the third hole body to communicate with the first hole body.

5. The rose petal essential oil extraction apparatus of claim 1, wherein: The upper cover assembly is provided with a one-way assembly, the one-way assembly comprises a second arc-shaped sliding cavity coaxial with the moving disc and uniformly distributed in the circumferential direction on the upper bottom surface of the moving disc, the lower bottom surface of the upper fixed disc is provided with a second sliding plug capable of being clamped into the second arc-shaped sliding cavity, the second sliding plug separates the second arc-shaped sliding cavity into sealed front and rear chambers, the first hole body communicates with the front chamber, the third hole body communicates with the rear chamber, the solution continuously entering the front chamber can generate pressure and enable the second sliding plug to relatively slide and move to the rear chamber, thereby enabling the first hole body to communicate with the third hole body, the cover body is provided with an elastic component enabling the moving disc to have a reverse rotating tendency and enabling the second sliding plug to slide to between the first and third hole bodies and achieve blocking. The pneumatic valve assembly comprises a first arc-shaped sliding cavity coaxial with the liquid inlet cavity and uniformly distributed in the circumferential direction, the moving disc is provided with a first sliding plug capable of being clamped into the first arc-shaped sliding cavity and achieving sliding fit, the first sliding plug separates the first arc-shaped sliding cavity into sealed first and second chambers, the first chamber is provided with an elastic component enabling the moving disc to have a rotating movement tendency and enabling the third hole body to be dislocated from the first hole body to achieve closing, the top surface of the cover body is provided with an annular groove coaxial with the liquid inlet, the annular groove is provided with a gas channel in communication with the second chamber and used for inputting compressed gas to push the first sliding plug to rotate and enable the third hole body to communicate with the first hole body.

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