CN113058527A - Mixing and stirring equipment for food science experiments and using method thereof - Google Patents

Abstract

The invention relates to the field of food science experimental equipment, in particular to mixing and stirring equipment for food science experiments and a using method thereof. The mixing and stirring equipment for food science experiments and the using method thereof can increase the mixing efficiency of food samples and liquid medicaments, avoid the gelatinization phenomenon and improve the mixing uniformity of the food samples and the liquid medicaments.

Description

Mixing and stirring equipment for food science experiments and using method thereof

Technical Field

The invention relates to the field of food science experiment equipment, in particular to mixing and stirring equipment for food science experiments and a using method thereof.

Background

When carrying out food science experiment, need carry out chemical treatment to food sample, dissolve in the liquid medicament after smashing food sample through manual stirring or mechanical equipment stirring to make article sample and liquid medicament misce bene, so that can be more accurate judgement food sample characteristic in the experiment. The existing mixing and stirring equipment for stirring and mixing food samples is poor in mixing effect of the food samples and liquid medicaments when the food samples are stirred, so that the food samples and the liquid medicaments are mixed unevenly and react incompletely, further the food samples cannot be accurately subjected to experimental analysis, and in a heating treatment experiment, the phenomenon that food is gelatinized due to uneven heat is easily caused, and the food samples are bonded on the inner side wall of the equipment and are inconvenient to clean.

Disclosure of Invention

The invention aims to provide mixing and stirring equipment for food science experiments and a using method thereof, so as to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a mix agitated vessel and application method for food science experiments, including base and the mixing drum of fixing on the base, set up the cover on the mixing drum, the detachable rabbling mechanism that is provided with on the base, and the cover sets up on the rabbling mechanism, the rabbling mechanism is used for mixing the food sample and the stirring of liquid medicament in the mixing drum, be provided with the pressure cycle mechanism that is used for carrying out drive circulation to the mixture of food sample and liquid medicament on the rabbling mechanism, and the rabbling mechanism is connected with the pressure cycle mechanism transmission, be provided with sealing mechanism on the cover, sealing mechanism is used for keeping the leakproofness between cover and the rabbling mechanism, pressure cycle mechanism is connected with sealing mechanism transmission.

Preferably, the stirring mechanism comprises a portal frame, a motor is fixed in the middle of a cross beam of the portal frame, an output shaft end of the motor is fixedly connected with one end of a U-shaped frame, the other end of the U-shaped frame is fixedly connected with the upper end of a rotating shaft, the central axis of the rotating shaft is coincided with the central axis of the motor, and the U-shaped frame is in transmission connection with the pressure circulation mechanism.

Preferably, both ends of the portal frame are all spliced and slidably connected with the inserted bar, the inserted bar is vertically and fixedly connected to the base, the portal frame is connected with the bolt in a threaded manner, and the portal frame is detachably and fixedly connected with the corresponding inserted bar through the bolt.

Preferably, the rabbling mechanism still includes the hollow shaft, the hollow shaft runs through and the center of sliding connection cover, and the hollow shaft can be in cover fixed axis rotation, a pot head of hollow shaft is established and sliding connection is in the pivot, the pivot is passed through the key and is connected with the hollow shaft transmission, and the hollow shaft is connected with the pressure cycle mechanism transmission, be provided with multiunit stirring rod on the one end lateral wall that the pivot was kept away from to the hollow shaft, and every group stirring rod is including two stirring rods, multiunit stirring rod is equidistant setting along the circumference trend of hollow shaft, the one end that every group stirring rod kept away from the hollow shaft is provided with the scraper blade, the both ends of stirring rod respectively with the hollow shaft, the scraper blade fixed axis rotates and is connected, be fixed with on the lateral wall of hollow shaft and.

Preferably, the pressure cycle mechanism is including fixing the cantilever on the portal frame, the dead axle rotates on the cantilever and is connected with the gear, be fixed with the leading truck on the cantilever, sliding connection has the rack on the leading truck, the rack is connected with the gear engagement, the upper end of rack is articulated with the slide bar through connecting rod two, slide bar sliding connection is on the uide bushing, and uide bushing fixed connection is on the portal frame, the one end dead axle of slide bar rotates the one end of connecting rod one, the other end fixed connection lantern ring of connecting rod one, and the lantern ring cup joints the dead axle and rotates the middle part of connecting at the U-shaped frame, be fixed with a plurality of collars on the lateral wall of hollow shaft, it is a plurality of the collar moves towards equidistant setting along the axis of hollow shaft.

Preferably, the pressure circulating mechanism further comprises a pressurizing cylinder fixed on the inner bottom surface of the mixing cylinder, the pressurizing cylinder and the tubular shaft share the central axis, the upper end of the pressurizing cylinder is open, the side wall of the lower end of the pressurizing cylinder is provided with a plurality of extruding holes, the inner part of the pressurizing cylinder is slidably connected with a first piston plate, a through hole is formed in the center of the first piston plate, the bottom surface of the first piston plate is fixedly connected with a valve plate in a rotating mode, the valve plate can be used for plugging the through hole, the valve plate is connected with the bottom surface of the first piston plate through a coil spring, a support is fixed on the upper surface of the first piston plate, and the.

Preferably, sealing mechanism is including fixing the sleeve on the cover, and the sleeve cover is established on the hollow shaft, has seted up the annular on the telescopic inside wall, and the joint has the rubber circle in the annular, and the inside cavity of rubber circle is fixed with intake pipe and outlet duct on the telescopic lateral wall, and intake pipe and outlet duct all are linked together with the inside of rubber circle.

Preferably, a sealing ring and a supporting rod are fixed on the inner side wall of the air outlet pipe, the supporting rod is close to the port of the air outlet pipe far away from the sleeve, the supporting rod is connected with a ball through a spring, and the ball can seal the sealing ring.

Preferably, sealing mechanism is still including fixing the pump barrel on the cover, and the inside sliding connection of pump barrel has piston plate two, and the upper surface of piston plate two is perpendicular and be fixed with the pull rod, the lower extreme of the upper end fixed connection rack of pull rod, and piston plate two is two for pump barrel internal partitioning two cavitys, and two all be connected with check valve one and check valve two, two on the lateral wall of cavity check valve one all is connected with the intake pipe, the directional intake pipe of the direction that switches on of check valve one, the directional cavity that corresponds of the direction that switches on of check valve two.

Preferably, the use method of the mixing and stirring device for the food science experiment comprises the following steps:

the method comprises the following steps: stirring and mixing the food sample and the liquid medicament in the mixing cylinder by a stirring mechanism;

step two: driving a pressure circulation structure through a stirring mechanism to drive a mixture of the food sample and the liquid medicament to form circulation;

step three: the sealing mechanism is driven by the pressure circulating mechanism to maintain the sealing property between the cylinder cover and the stirring mechanism.

Compared with the prior art, the invention has the beneficial effects that:

according to the food sample and liquid medicament mixing device, the food sample and the liquid medicament in the mixing cylinder are mixed through the mixing mechanism, so that time and labor are saved, the labor intensity is reduced, the mixing efficiency of the food sample and the liquid medicament is increased, the phenomenon that the mixture is heated unevenly when the mixture is heated through the side wall of the mixing cylinder is avoided, the gelatinization phenomenon is avoided, and the side wall of the mixing cylinder is convenient to clean.

According to the food sample and liquid medicament mixing device, the mixture of the food sample and the liquid medicament is driven to circulate by the driving pressure circulation structure of the stirring mechanism, so that the stirring effect of the mixture is further improved, the circularly flowing mixture is mixed in a disordered manner again under the action of the stirring rod, the mixing uniformity of the food sample and the liquid medicament is further improved, the food sample and the liquid medicament react more thoroughly, the food sample can be accurately subjected to experimental analysis, the circularly flowing mixture is easier to be heated uniformly, and the gelatinization phenomenon is further avoided;

according to the invention, the sealing mechanism is driven by the pressure circulation mechanism to maintain the sealing property between the cylinder cover and the stirring mechanism, so that the mixture is prevented from leaking from the rubber ring and the pipe shaft during stirring, and the heat dissipation and cooling effects of the rubber ring can be realized, so that the rubber ring has a longer service life, and the stable reliability of the sealing between the rubber ring and the pipe shaft is favorably maintained.

Drawings

FIG. 1 is a schematic cross-sectional view of the final assembly of the present invention;

FIG. 2 is a schematic view of the connection structure of the gear and the pipe shaft according to the present invention;

FIG. 3 is a first schematic sectional view of the mixing drum according to the present invention;

FIG. 4 is a schematic cross-sectional view of a mixing drum according to the present invention;

fig. 5 is a schematic cross-sectional view of the sleeve according to the present invention.

In the figure: 1. a base; 2. a gantry; 3. inserting a rod; 4. a bolt; 5. a mixing drum; 6. a piston plate I; 7. a squeegee; 8. a stirring rod; 9. a pressurizing cylinder; 10. a baffle ring; 11. a cylinder cover; 12. a convex ring; 13. a tubular shaft; 14. a rotating shaft; 15. a U-shaped frame; 16. a collar; 17. a motor; 18. a slide bar; 19. a first connecting rod; 20. a key; 21. a second connecting rod; 22. a gear; 23. a guide sleeve; 24. a rack; 25. a guide frame; 26. a cantilever; 27. a pump barrel; 28. a pull rod; 29. a first trachea; 30. a one-way valve I; 31. a second piston plate; 32. a second one-way valve; 33. a sleeve; 34. an air inlet pipe; 35. an air outlet pipe; 36. a support; 37. a valve plate; 38. extruding holes; 39. a seal ring; 40. a strut; 41. a spring; 42. a ball; 43. a rubber ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a mix agitated vessel and application method for food science experiments, including base 1 and the mixing drum 5 of fixing on base 1, set up cover 11 on the mixing drum 5, the detachable rabbling mechanism that is provided with on base 1, and cover 11 sets up on the rabbling mechanism, the rabbling mechanism is used for stirring the mixture of food sample and liquid medicament in the mixing drum 5, be provided with the pressure cycle mechanism that is used for carrying out drive circulation to the mixture of food sample and liquid medicament on the rabbling mechanism, and the rabbling mechanism is connected with pressure cycle mechanism transmission, be provided with sealing mechanism on cover 11, sealing mechanism is used for keeping the leakproofness between cover 11 and the rabbling mechanism, pressure cycle mechanism is connected with sealing mechanism transmission.

In this embodiment, as shown in fig. 1, the stirring mechanism includes a gantry 2, a motor 17 is fixed in the middle of a cross beam of the gantry 2, an output shaft end of the motor 17 is fixedly connected to one end of a U-shaped frame 15, the other end of the U-shaped frame 15 is fixedly connected to the upper end of a rotating shaft 14, the central axis of the rotating shaft 14 is overlapped by the central axis of the motor 17, and the U-shaped frame 15 is in transmission connection with the pressure circulation mechanism.

In this embodiment, as shown in fig. 1, the two ends of the portal frame 2 are all inserted and slidably connected with the inserted bar 3, the inserted bar 3 is perpendicular and fixedly connected to the base 1, the portal frame 2 is screwed with the bolt 4, and the portal frame 2 is detachably and fixedly connected with the corresponding inserted bar 3 through the bolt 4.

In this embodiment, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the stirring mechanism further includes a tube shaft 13, the tube shaft 13 penetrates through and is slidably connected to the center of the tube cover 11, and the tube shaft 13 can be fixed to rotate on the tube cover 11, one end of the tube shaft 13 is sleeved and slidably connected to the rotating shaft 14, the rotating shaft 14 is in transmission connection with the tube shaft 13 through a key 20, and the tube shaft 13 is in transmission connection with the pressure circulation mechanism, a plurality of sets of stirring rods 8 are disposed on a side wall of one end of the tube shaft 13 away from the rotating shaft 14, each set of stirring rods 8 includes two stirring rods 8, the plurality of sets of stirring rods 8 are disposed at equal intervals along a circumferential direction of the tube shaft 13, a scraper 7 is disposed at one end of each set of stirring rods 8 away from the tube shaft 13, two ends of the stirring rods 8 are respectively connected to the tube shaft 13 and the scraper 7 in fixed to rotate.

In this embodiment, as shown in fig. 1 and fig. 2, the pressure circulation mechanism includes a cantilever 26 fixed on the gantry 2, a gear 22 is rotatably connected to a fixed shaft on the cantilever 26, a guide frame 25 is fixed on the cantilever 26, a rack 24 is slidably connected to the guide frame 25, the rack 24 is engaged with the gear 22, an upper end of the rack 24 is hinged to the slide rod 18 through a second connecting rod 21, the slide rod 18 is slidably connected to a guide sleeve 23, the guide sleeve 23 is fixedly connected to the gantry 2, one end of the slide rod 18 is rotatably connected to one end of a first connecting rod 19, the other end of the first connecting rod 19 is fixedly connected to a collar 16, the collar 16 is rotatably connected to the fixed shaft at a middle portion of the U-shaped frame 15, a plurality of collars 12 are fixed on an outer side wall of the tube shaft 13, the plurality of collars 12 are arranged at equal intervals along an axis direction of the tube shaft 13, and the collars.

In this embodiment, as shown in fig. 3 and 4, the pressure circulation mechanism further includes a pressure cylinder 9 fixed on the inner bottom surface of the mixing cylinder 5, the pressure cylinder 9 and the tubular shaft 13 share a central axis, the upper end of the pressure cylinder 9 is open, the lower end side wall is provided with a plurality of extruding holes 38, the pressure cylinder 9 is connected with a piston plate 6 in a sliding manner, the center of the piston plate 6 is provided with a through hole, the bottom surface of the piston plate 6 is connected with a valve plate 37 in a fixed-axis rotating manner, the valve plate 37 can seal the through hole, the valve plate 37 is connected with the bottom surface of the piston plate 6 through a coil spring, the upper surface of the piston plate 6 is fixed with a bracket 36, and the bracket 36 is fixedly connected to the lower end of the tubular shaft.

In this embodiment, as shown in fig. 5, the sealing mechanism includes a sleeve 33 fixed on the cover 11, the sleeve 33 is sleeved on the tubular shaft 13, an annular groove is formed in the inner side wall of the sleeve 33, a rubber ring 43 is clamped in the annular groove, the rubber ring 43 is hollow inside, an air inlet pipe 34 and an air outlet pipe 35 are fixed on the side wall of the sleeve 33, and the air inlet pipe 34 and the air outlet pipe 35 are both communicated with the inside of the rubber ring 43.

In this embodiment, as shown in fig. 5, a sealing ring 39 and a supporting rod 40 are fixed on an inner side wall of the outlet tube 35, the supporting rod 40 is close to a port of the outlet tube 35 far from the sleeve 33, the supporting rod 40 is connected to a ball 42 through a spring 41, and the ball 42 can seal the sealing ring 39.

In this embodiment, as shown in fig. 3 and 4, the sealing mechanism further includes a pump barrel 27 fixed on the barrel cover 11, the inside of the pump barrel 27 is slidably connected with a second piston plate 31, the upper surface of the second piston plate 31 is vertical and fixed with a pull rod 28, the upper end of the pull rod 28 is fixedly connected with the lower end of the rack 24, the second piston plate 31 divides the inside of the pump barrel 27 into two cavities, the side walls of the two cavities are connected with a first check valve 30 and a second check valve 32, the two first check valves 30 are connected with an air inlet pipe 34, the conduction direction of the first check valve 30 points to the air inlet pipe 34, and the conduction direction of the second check valve 32 points to the corresponding cavity.

The use method and the advantages of the invention are as follows: when the mixing and stirring equipment for food science experiments is used, the working process is as follows:

the method comprises the following steps: as shown in fig. 1 and 4, when food samples and liquid medicaments are mixed and stirred, the food samples and the liquid medicaments to be mixed are placed in a mixing cylinder 5, two lower ends of a portal frame 2 are inserted into corresponding insertion rods 3, then the portal frame 2 and the insertion rods 3 are fixedly connected by bolts 4, meanwhile, a cylinder cover 11 is buckled on the mixing cylinder 5, and under the action of self weight, a scraper 7 moves downwards and a stirring rod 8 rotates downwards and is in abutting contact with a baffle ring 10, so that the situation that the scraper 7 is small in gathering and a piston plate 6 is inconvenient to be correspondingly placed in a pressurizing cylinder 9 can be avoided;

after the above operations are completed, the motor 17 is started to work, as shown in fig. 1, fig. 2 and fig. 3, the motor 17 drives the U-shaped frame 15 to rotate through its output shaft, and the U-shaped frame 15 drives the rotating shaft 14 to rotate, so that the rotating shaft 14 drives the tubular shaft 13 to rotate through the key 20, and further the tubular shaft 13 drives the stirring rod 8 to rotate, so that the stirring rod 8 mixes the food sample and the liquid medicament in the mixing cylinder 5, time and labor are saved, the labor intensity is reduced, the mixing efficiency of the food sample and the liquid medicament is increased, and the rotation of the stirring rod 8 synchronously drives the scraper 7 to rotate, so that the scraper 7 obtains a centrifugal force, and the scraper 7 is close to and in contact with the side wall of the mixing cylinder 5 under the action of the centrifugal force, so that the mixture of the food sample and the liquid medicament on the side wall is continuously scraped during the rotation of the scraper 7, and the uneven heating of the mixture through the side wall of, thereby avoiding the phenomenon of gelatinization and facilitating the cleaning of the side wall of the mixing cylinder 5;

step two: as shown in the first step, in the process of rotating the U-shaped frame 15, as shown in fig. 1 and 2, the U-shaped frame 15 applies a pulling force or a pushing force to the sliding rod 18 through the collar 16 and the first connecting rod 19, so that the sliding rod 18 slides in a left-right reciprocating manner in the guide sleeve 23, further the sliding rod 18 drives the rack 24 to slide in a vertical reciprocating manner in the guide frame 25 through the second connecting rod 21, the vertical sliding of the rack 24 drives the gear 22 to rotate in a clockwise-counterclockwise reciprocating manner in fig. 1, so that the gear 22 drives the pipe shaft 13 to move in a vertical reciprocating manner through the action of the tooth convex ring 12, so that the pipe shaft 13 drives the stirring rod 8 to rotate and also moves in a vertical direction, the stirring effect of the stirring rod 8 on the mixture is improved, the vertical movement of the pipe shaft 13 drives the first piston plate 6 to move up and down through the bracket 36, when the first piston plate 6 moves down, at this time, the valve plate 37 is enabled to seal the through hole on the piston plate 6 under the action of the coil spring, when the piston plate 6 moves downwards, the mixture on the lower side of the piston plate 6 exerts an upward reaction force on the valve plate 37, so that the valve plate 37 further seals the through hole, further, when the piston plate 6 moves downwards, the mixture on the lower side of the piston plate 6 inside the pressurizing cylinder 9 is pressurized, so that the mixture is extruded out through the extruding hole 38 and flows to the lower end of the side wall of the mixing cylinder 5, the mixture flows from inside to outside and flows from bottom to top, and during the upward movement of the piston plate 6, the mixture exerts a downward action force on the valve plate 37 through the through hole, so that the valve plate 37 is opened as shown in figure 3, further, the mixture flows to the space on the lower side of the piston plate 6 inside the pressurizing cylinder 9 through the through hole, so as to be extruded from the extruding hole 38 again, the mixture is circulated in such a way, so that the stirring effect of the mixture is further improved, the circularly flowing mixture is mixed disorderly again under the action of the stirring rod 8, the mixing uniformity of the food sample and the liquid medicament is further improved, the food sample and the liquid medicament are reacted more thoroughly, the food sample can be accurately subjected to experimental analysis, the circularly flowing mixture is easier to be heated uniformly, and the gelatinization phenomenon is further avoided;

step three: as shown in the second step, the second piston plate 31 is synchronously driven by the pull rod 28 to move up and down in the pump cylinder 27 in the process of the up-and-down reciprocating movement of the rack 24, when the second piston plate 31 moves down, the second piston plate 31 compresses air in the lower cavity, because the conduction direction of the second check valve 32 points to the corresponding cavity, and the conduction direction of the first check valve 30 points to the first air pipe 29, air in the lower cavity is compressed and then is delivered to the air inlet pipe 34 through the first air pipe 29, and simultaneously, external air is sucked into the upper cavity through the second check valve 32 by the suction force generated by the upper cavity, similarly, when the second piston plate 31 moves up, the second piston plate 31 compresses air in the upper cavity, because the conduction direction of the second check valve 32 points to the corresponding cavity, the conduction direction of the first check valve 30 points to the first air pipe 29, and therefore, air in the upper cavity is compressed and then is delivered to the air inlet pipe 34 through the first, meanwhile, external air is sucked into the lower cavity through the check valve II 32 by suction force generated by the lower cavity, and the circulation is performed, so that the air is conveyed to the air inlet pipe 34 by the circulation when the two air pipes I29 are alternated, and is conveyed to the inside of the rubber ring 43 through the air inlet pipe 34, as shown in fig. 5, the air pressure inside the rubber ring 43 is increased, the attaching force of the rubber ring 43 to the outer side wall of the tubular shaft 13 is increased, the sealing property between the rubber ring 43 and the tubular shaft 13 is further increased, and the mixture is prevented from leaking from the rubber ring 43 and the tubular shaft 13 during stirring;

when the air pressure in the rubber ring 43 is larger, the pressure exerted by the air pressure in the rubber ring 43 on the ball 42 is larger than the pressure exerted by the spring 41 on the ball 42, so that the ball 42 compresses the spring 41 and does not block the sealing ring 39, so that the air in the rubber ring 43 is output through the air outlet pipe 35, thereby avoiding the air pressure in the rubber ring 43 from being larger, leading the rubber ring 43 to be tightly attached with the outer side wall of the tubular shaft 13, since the temperature is increased due to the friction generated in the rubber ring 43 during the rotation and the up-and-down reciprocating movement of the tube shaft 13, further, the aging of the rubber ring 43 is accelerated by the high temperature of the surface, and the heat of the rubber ring 43 is taken away in the process of exhausting the air from the air outlet pipe 35, thereby playing the role of heat dissipation and cooling of the rubber ring 43, so that the rubber ring 43 has a longer service life, and the stability and reliability of the sealing between the rubber ring 43 and the tubular shaft 13 are kept;

after the mixing and stirring are completed, the motor 17 is stopped, the bolt 4 is removed, the portal frame 2 is removed from the inserted link 3, and the cylinder cover 11 is removed from the mixing cylinder 5, so that the uniformly mixed mixture of the food sample and the liquid medicament can be obtained.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (10)

1. The utility model provides a mix agitated vessel that food science experiments were used, includes base (1) and fixes mixing drum (5) on base (1), its characterized in that: set up cover (11) on mixing drum (5), the detachable rabbling mechanism that is provided with on base (1), and cover (11) set up on the rabbling mechanism, the rabbling mechanism is used for mixing food sample and the liquid medicament stirring in mixing drum (5), be provided with on the rabbling mechanism and be used for carrying out drive endless pressure cycle mechanism to the mixture of food sample and liquid medicament, and rabbling mechanism and pressure cycle mechanism transmission are connected, be provided with sealing mechanism on cover (11), sealing mechanism is used for keeping the leakproofness between cover (11) and the rabbling mechanism, pressure cycle mechanism and sealing mechanism transmission are connected.

2. The mixing and stirring device for food science experiments according to claim 1, wherein: rabbling mechanism includes portal frame (2), the crossbeam middle part of portal frame (2) is fixed with motor (17), the output shaft fixed connection U-shaped frame (15) of motor (17) wherein one end, and the upper end fixed connection of the other end of U-shaped frame (15) and pivot (14), and the central axis of pivot (14) has the central axis coincidence setting of motor (17), U-shaped frame (15) are connected with the pressure cycle mechanism transmission.

3. The mixing and stirring device for food science experiments according to claim 2, wherein: the both ends of portal frame (2) are all pegged graft and sliding connection has inserted bar (3), inserted bar (3) are perpendicular and fixed connection is on base (1), threaded connection has bolt (4) on portal frame (2), and portal frame (2) are through bolt (4) and the detachable fixed connection of inserted bar (3) that correspond.

4. The mixing and stirring device for food science experiments according to claim 2, wherein: the stirring mechanism further comprises a tubular shaft (13), the tubular shaft (13) penetrates through and is in sliding connection with the center of the barrel cover (11), the tubular shaft (13) can be fixed-shaft rotation on the barrel cover (11), one end of the tubular shaft (13) is sleeved and is in sliding connection with a rotating shaft (14), the rotating shaft (14) is in transmission connection with the tubular shaft (13) through a key (20), the tubular shaft (13) is in transmission connection with the pressure circulation mechanism, a plurality of groups of stirring rods (8) are arranged on the side wall of one end, far away from the rotating shaft (14), of the tubular shaft (13), each group of stirring rods (8) comprises two stirring rods (8), the plurality of groups of stirring rods (8) are arranged at equal intervals along the circumferential direction of the tubular shaft (13), a scraper (7) is arranged at one end, far away from the tubular shaft (13), of each group of stirring rods (8), the two ends of each stirring rod (8) are respectively in fixed-shaft rotation connection with the tubular shaft (13) and the scraper (7), and the stirring rod (8) can be contacted with the baffle ring (10) in a buckling way.

5. The mixing and stirring device for food science experiments according to claim 4, wherein: the pressure circulation mechanism comprises a cantilever (26) fixed on a portal frame (2), a fixed shaft on the cantilever (26) is rotatably connected with a gear (22), a guide frame (25) is fixed on the cantilever (26), a rack (24) is slidably connected on the guide frame (25), the rack (24) is meshed with the gear (22) and is connected with the upper end of the rack (24) through a second connecting rod (21) to be hinged with a first sliding rod (18), the sliding rod (18) is slidably connected on a guide sleeve (23), the guide sleeve (23) is fixedly connected on the portal frame (2), one end of the first sliding rod (18) is rotatably connected with one end of a first connecting rod (19) in a fixed manner, the other end of the first connecting rod (19) is fixedly connected with a lantern ring (16), the lantern ring (16) is rotatably connected with the fixed shaft in the middle of the U-shaped frame (15), and a plurality of convex rings (12) are fixed on the outer side wall of the tubular shaft, the convex rings (12) are arranged at equal intervals along the axial direction of the pipe shaft (13), and the convex rings (12) can be meshed with teeth of the gear (22).

6. The mixing and stirring device for food science experiments according to claim 5, wherein: pressure cycle mechanism is still including fixing pressure boost section of thick bamboo (9) on the inside bottom surface of mixing drum (5), and pressure boost section of thick bamboo (9) and hollow shaft (13) sharing central axis, the upper end opening of pressure boost section of thick bamboo (9), and seted up a plurality of crowded material hole (38) on the lower extreme lateral wall, the inside sliding connection of pressure boost section of thick bamboo (9) has piston board (6), and the center department of piston board (6) has seted up the through-hole, the bottom surface dead axle of piston board (6) rotates and is connected with valve plate (37), valve plate (37) can be right the through-hole shutoff, valve plate (37) are connected through the bottom surface of coil spring with piston board (6), the last fixed surface of piston board (6) has support (36), and support (36) fixed connection is at the lower extreme of hollow shaft (13).

7. The mixing and stirring device for food science experiments according to claim 5, wherein: sealing mechanism is including fixing sleeve (33) on cover (11), sleeve (33) cover is established on hollow shaft (13), the annular has been seted up on the inside wall of sleeve (33), and the joint has rubber circle (43) in the annular, the inside cavity of rubber circle (43), be fixed with intake pipe (34) and outlet duct (35) on the lateral wall of sleeve (33), and intake pipe (34) and outlet duct (35) all are linked together with the inside of rubber circle (43).

8. The mixing and stirring device for food science experiments according to claim 7, wherein: be fixed with sealing ring (39) and branch (40) on the inside wall of outlet duct (35), and branch (40) are close to outlet duct (35) and keep away from the port department of sleeve (33), branch (40) pass through spring (41) and connect ball (42), and ball (42) can carry out the shutoff to sealing ring (39).

9. The mixing and stirring device for food science experiments according to claim 8, wherein: sealing mechanism is still including fixing pump barrel (27) on cover (11), the inside sliding connection of pump barrel (27) has piston plate two (31), the upper surface of piston plate two (31) is perpendicular and be fixed with pull rod (28), the lower extreme of upper end fixed connection rack (24) of pull rod (28), piston plate two (31) are two cavities, and two with pump barrel (27) internal partitioning all be connected with check valve one (30) and check valve two (32), two on the lateral wall of cavity check valve one (30) all are connected with intake pipe (34), the directional intake pipe (34) of the direction of conducting of check valve one (30), the directional cavity that corresponds of the direction of conducting of check valve two (32).

10. The use method of the mixing and stirring device for food science experiments as claimed in any one of claims 2 to 9, wherein: the method comprises the following steps:

the method comprises the following steps: stirring and mixing the food sample and the liquid medicament in the mixing cylinder (5) by a stirring mechanism;

step two: driving a pressure circulation structure through a stirring mechanism to drive a mixture of the food sample and the liquid medicament to form circulation;

step three: the sealing mechanism is driven by the pressure circulation mechanism to keep the sealing performance between the cylinder cover (11) and the stirring mechanism.

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