CN212748475U - Sample preprocessing device for food detection - Google Patents

Abstract

The utility model discloses a sample preprocessing device for food detection, in particular to the technical field of food detection, which comprises a workbench, a frame, an inlet pipe, a lifting device, a stirring device, a discharging device, an output component, an extrusion component and a sample packaging device, wherein the sample packaging device is arranged on the workbench, the stirring device and the lifting device are both arranged on the frame, the lifting device comprises two lifting devices, the two lifting devices are respectively and symmetrically arranged at two sides of the stirring device, the output component is fixed on the frame and positioned at the side of the stirring device, the output component and the discharging device are matched for operation, so as to solve the problems that only separate extraction can be carried out when extracting vegetables and fruits for the same kind of detection every time in the prior art, the extraction time is greatly wasted, and staff are required to take a test tube filled with fruit juice beside the side in real time to put the new test tube into the equipment for extracting fruit juice, it is very inconvenient.

Description

Sample preprocessing device for food detection

Technical Field

The utility model belongs to the technical field of the food detection technique and specifically relates to a sample preprocessing device for food detection is related to.

Background

With the rapid development of social economy, people put more emphasis on food safety, and at present, when various circulating foods on the market leave a factory or after leaving the factory, relevant departments can perform sampling inspection on the foods or perform explosive sampling quality inspection on the food circulation market regularly to check whether the food quality meets the standard specified by the national food safety law.

Cite patent No. CN107884240B a vegetables and fruits food safety inspection sample preliminary treatment splitter, the on-line screen storage device comprises a base, the separator box, the agitator tank, the sample collecting box, press and strain a section of thick bamboo, the compression roller, the screw rod, agitating unit and filter ball, the top mount of pressing and straining a section of thick bamboo is equipped with the apron, fixed surface installs the screw thread seat on the middle part of apron, the middle part of screw thread seat is equipped with the screw rod through threaded connection mode rotating turret, it is provided with the compression roller to press the inside of straining a section of thick bamboo to slide from top to bottom, compression roller fixed mounting is in the bottom of screw rod, press the lower part outer lane equipartition of straining a section of thick bamboo and seted up a plurality of filtration pores, the inner chamber bottom intercommunication of agitator tank is provided with communicating pipe, filter ball intercommunication sets up the bottom at last. The invention has simple structure and convenient operation, is convenient for preparing sample solution and is convenient for detecting vegetable and fruit foods.

Although the separation equipment can extract the juice of fruits and vegetables, the separation equipment has the following problems;

firstly, some fruits are as tight as nectarines, sugarcanes and green apples, and juice in the fruits and vegetables cannot be extracted quickly by simple extrusion through a compression roller; secondly, the pulp after the juice is squeezed is easy to be blocked in the filtering holes of the filter pressing cylinder, so that the filtering holes are blocked and difficult to clean.

Food safety inspection is to detect harmful substance in food according to national index, mainly be the detection of some harmful and toxic indexes, such as heavy metal, aflatoxin etc., food inspection is often needed to detect vegetables and fruits ' food, and in the life now, people increasingly like to squeeze juice and handle vegetables and fruits and drink directly, vegetables and fruits ' food safety inspection is also very important, safety inspection to vegetables and fruits ' food often needs to carry out sample extraction to the inside fruit juice of vegetables and fruits, and in the prior art, only can extract alone when extracting vegetables and fruits of the same kind of detection usefulness every time, greatly wasted extraction time and need artifical and put into the equipment place that extracts fruit juice behind the real-time test tube that fills with fruit juice of next door when extracting fruit juice, very inconvenient, therefore need one kind of food inspection sample that can extract a plurality of similar vegetables and fruits simultaneously and can remove the test tube that fills with fruit juice to detect with the people to use Product preprocessing device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sample preprocessing device for food detection to solve among the prior art some fruit pulp closely like nectarine, sugarcane and green apple, simple through the compression roller extrusion can't be carried out the juice in the fruit vegetables fast and the pulp after the juice is squeezed blocks easily in pressing the filtration pore of straining a section of thick bamboo and causes the filtration pore to be blockked up and clear up the technical problem of difficulty.

The utility model provides a sample pretreatment device for food detection, which comprises a workbench, a frame, an inlet pipe, a lifting device, a stirring device, a blanking device, an output component, an extrusion component and a sample packaging device, wherein the sample packaging device is arranged on the workbench, the stirring device and the lifting device are both arranged on the frame, the lifting device comprises two lifting devices which are respectively symmetrically arranged at two sides of the stirring device, the top of the two lifting devices is provided with a fixing plate for pushing, two ends of the inlet pipe are respectively communicated and connected with the stirring device and the fixing plate, the stirring device is positioned above the sample packaging device, the extrusion component is arranged at the bottom of the stirring device, the blanking device is sleeved on the outer wall of the stirring device and penetrates through the blanking device to the inside of the stirring device, the blanking device is positioned below the extrusion component, the output assembly is fixed on the frame and positioned beside the stirring device, and the output assembly and the blanking device are matched for operation.

Further, every elevating gear all includes cylinder and U type support, U type support sets up the top at the frame perpendicularly, the cylinder is vertical to be set up in U type support's inside and the output of cylinder runs through the top of U type support, two the output of cylinder is fixed with the bottom of fixed plate.

Further, agitating unit includes first motor, first gear, second gear, output shaft, stirring lid, agitator and a plurality of stirring blade, the agitator sets up between the frame, the stirring lid is established at the top of agitator, communicate with each other between the one end of inlet pipe and the stirring lid and be connected, the vertical top of passing the fixed plate of one end of output shaft and the top of stirring lid to the one end of output shaft extends to in the agitator, every the stirring blade sets gradually on the outer wall of the one end of output shaft, first gear cover is established on the other end of output shaft, first motor sets up at the top of fixed plate and is located the side of first gear, the second gear cover is established on the output of first motor and meshing between first gear and the second gear.

Furthermore, the extrusion assembly comprises an extrusion block and a plurality of convex blocks, the extrusion block is fixed with one end of the output shaft, and each convex block is arranged at the bottom of the extrusion block.

Further, unloader includes driving gear, limiting plate, a plurality of holding ring and a plurality of closing plate, the limiting plate sets up between the inner wall of agitator, the outside at the limiting plate is established to the driving gear cover, the internal diameter of driving gear is greater than the external diameter of limiting plate, every the closing plate sets up the top at the limiting plate, every the both ends of holding ring are articulated with the top surface of every closing plate and driving gear respectively.

Further, the output assembly comprises a second motor, a rotating shaft and a driven gear, the output end of the second motor is vertically arranged on the inner side wall of the frame, one end of the rotating shaft is connected with the output end of the second motor, the driven gear is sleeved on the other end of the rotating shaft, and the driven gear is meshed with the driving gear.

Further, pack sample device and include third motor, dwang, carousel and a plurality of test tube, the workstation is hollow mechanism, the vertical setting of third motor is in the workstation, the one end of rotation axis is connected with the output of third motor to the other end of rotation axis extends to the outside of workstation and the bottom swing joint of carousel, set up a plurality of standing grooves of placing the test tube on the lateral wall of carousel, every the test tube joint is in every standing groove.

Compared with the prior art, the utility model has the advantages that;

firstly, during operation: firstly, fruits and vegetables are put into a feeding hole by staff, the fruits and vegetables are waited to fall into a stirring device, then the staff starts the stirring device, the stirring device stirs the fruits and vegetables, the lifting device starts to operate, the lifting device drives the stirring device to lift up and down, the fruits and vegetables in the stirring device are evenly stirred, when the stirring is even, the lifting device drives the stirring device to lower, an extrusion component in the stirring device is enabled, the extrusion component starts to extrude the stirred fruits and vegetables, the fruit juice and pulp of the fruits and vegetables are separated, the detection staff can more conveniently detect the fruits and vegetables, after the extrusion component is completed, the lifting device drives the stirring device and the extrusion component to lift up, the staff can conveniently clean residues left by the stirring device and the extrusion component when the stirring device finishes the fruits and vegetables, and then the blanking device starts to operate, stirring and extruding juice and pulp of fruits and vegetables are completed by a stirring device and an extruding component, batch discharging is carried out, firstly, an output component drives a blanking device to operate, then the blanking device is clockwise operated by the output component, an opening of the blanking device is rotated along with the output component, a blanking port of the blanking device is gradually opened, only juice of fruits and vegetables can flow out, after the juice flows out, the blanking device is driven by the output component to anticlockwise rotate, the opening of a blanking port of the blanking device is enlarged, the pulp of fruits and vegetables flows out, then a packaging sample device is started to operate, when the blanking port flows out the juice, a test tube on the packaging sample device starts to rotate to reach the lower part of the blanking port, when the juice flows out and is filled into the test tube, when the test tube filled with the juice is waited, the test tube continues to rotate, the test tube without the fruits and vegetables rotates to the lower part of the blanking port, wait for the feed opening to see off pulp, wait for seeing off of pulp to pack into the test tube, when waiting for the test tube to fill with, continue to rotate, wait for the staff to take out the test tube, and easy operation can only carry out and draw alone when extracting the vegetables and fruits of the same kind detection usefulness at every turn among the solution prior art, greatly wasted the extraction time and need the staff to take in real time on the next door and just can put into the equipment place of extracting fruit juice with new test tube after filling with the test tube of fruit juice, very inconvenience.

Its two can cut apart into the fritter with the fruit vegetables through agitating unit and be convenient for the extrusion subassembly and draw the juice, makes things convenient for the extrusion subassembly to extrude the fruit vegetables, during the operation: after the fruit vegetables get into to the agitator through the inlet pipe in, open first motor work afterwards, later the second gear drives first gear and meshes the operation, first gear is driving the output shaft afterwards and is rotating, the output shaft is rotatory driving stirring blade and is making the fruit vegetables that get into in the agitator cut and cut into the fritter so that the extrusion subassembly draws the juice, the fruit vegetables that are cut apart into the fritter by stirring blade in the agitator are less because of self when receiving the extrusion, so can be great fruit vegetables go out fast and extrude the juice.

The fruit juice and the pulp of fruit and vegetable can be separated through the extrusion assembly, the output shaft is driven through the two cylinders, the output shaft drives the extrusion block and the lug to extrude the fruit and vegetable after the stirring is completed, the fruit and vegetable inside fruit juice after the stirring is completed is extruded, the fruit and vegetable of the small block can be cut into by the stirring blade to be extruded, the fruit juice and the pulp of the fruit and vegetable are separated, compared with the method for extracting juice by extruding the whole fruit and vegetable in the prior art, the juice is extracted by adopting the small block of the broken fruit and vegetable, the juice is discharged quickly, and the time for extracting the juice by extruding is saved.

Fourth, can fill the test tube fast through packing sample device, simple and convenient reduces staff's time, during the operation: at first open the operation through the third motor, the third motor is driving the dwang and is rotating, and the dwang is driving the carousel and is carrying out the operation, and the carousel is driving the test tube and is rotating and arrive appointed point, can with the fruit juice of separation in the fruit vegetables with the pulp accuracy pack into different test tubes, need not reduce the expenditure of cost of labor and improve production efficiency through in the different test tubes of fruit juice and pulp packing into in the staff with the fruit vegetables.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of a first perspective three-dimensional structure of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2 according to the present invention;

fig. 4 is a schematic view of a second perspective three-dimensional structure of the present invention;

FIG. 5 is a schematic view of the three-dimensional structure of the stirring device of the present invention;

fig. 6 is a schematic view of the three-dimensional structure of the blanking device of the present invention;

reference numerals:

the device comprises a workbench 1, a frame 2, a feeding pipe 3, a lifting device 4, a cylinder 41, a U-shaped support 42, a stirring device 5, a first motor 51, a first gear 52, a second gear 53, an output shaft 54, a stirring cover 55, a stirring barrel 56, a stirring blade 57, a blanking device 6, a driving gear 61, a limiting plate 62, a positioning ring 63, a closing plate 64, an output assembly 7, a second motor 71, a rotating shaft 72, a driven gear 73, a squeezing assembly 8, a squeezing block 81, a bump 82, a sample packaging device 9, a third motor 91, a rotating rod 92, a rotating disc 93, a test tube 94, a placing groove 931 and a fixing plate 11.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, an embodiment of the present invention provides a sample preprocessing device for food detection, including a workbench 1, a frame 2, a feeding pipe 3, a lifting device 4, a stirring device 5, a discharging device 6, an output component 7, an extruding component 8, and a sample packaging device 9, where the sample packaging device 9 is disposed on the workbench 1, the stirring device 5 and the lifting device 4 are both disposed on the frame 2, the lifting device 4 includes two lifting devices 4, the two lifting devices 4 are respectively symmetrically disposed at two sides of the stirring device 5, a fixing plate 11 for pushing the two lifting devices 4 is disposed at the top of the two lifting devices 4, two ends of the feeding pipe 3 are respectively connected with the stirring device 5 and the fixing plate 11, the stirring device 5 is located above the sample packaging device 9, the extruding component 8 is disposed at the bottom of the stirring device 5, the blanking device 6 is sleeved on the outer wall of the stirring device 5, the blanking device 6 penetrates through the stirring device 5, the blanking device 6 is located below the extrusion assembly 8, the output assembly 7 is fixed on the frame 2 and located beside the stirring device 5, and the output assembly 7 and the blanking device 6 are matched for operation.

The utility model discloses operating method: firstly, fruits and vegetables are put into a feeding hole by staff, the fruits and vegetables are waited to fall into a stirring device 5, then the staff starts to operate the stirring device 5, the stirring device 5 stirs the fruits and vegetables, the stirring is waited to be completed, a lifting device 4 starts to operate, the lifting device 4 drives the stirring device 5 to ascend and descend, the fruits and vegetables in the stirring device 5 are evenly stirred, when the fruits and vegetables are evenly stirred, the lifting device 4 drives the stirring device 5 to descend, an extrusion component 8 in the stirring device 5 starts to extrude the fruits and vegetables after the stirring is completed, fruit juice and pulp of the fruits and vegetables are separated, the detection staff can conveniently detect the fruits and vegetables, after the extrusion component 8 finishes operating, the lifting device 4 drives the stirring device 5 and the extrusion component 8 to ascend, the staff can conveniently clean residues left by the stirring device 5 and the extrusion component 8 when the fruits and vegetables operate, then, the blanking device 6 is opened for operation, the stirring device 5 and the extrusion component 8 are used for stirring and extruding fruit and vegetable juice and pulp, batch discharging is carried out, firstly, the output component 7 drives the blanking device 6 to operate, then, the output component 7 works the blanking device 6 clockwise, the opening of the blanking device 6 is along with the rotation of the output component 7, the blanking port of the blanking device 6 is opened gradually, only fruit and vegetable juice can flow out, after the fruit juice flows out, the output component 7 drives the blanking device 6 to rotate anticlockwise, the opening of the blanking port of the blanking device 6 is enlarged, fruit and vegetable pulp flows out, then, the sample packaging device 9 is opened for operation, when the blanking port flows out the fruit juice, the test tube 94 on the sample packaging device 9 starts to rotate to reach the lower part of the blanking port, and waits for the fruit juice to flow out and be loaded into the test tube 94, wait to adorn when the test tube 94 of fruit juice fills up, it is rotatory subsequently, the test tube 94 that will not adorn the fruit vegetables rotates to feed opening below, wait for the feed opening to see out pulp, wait for the discharge of pulp to pack into test tube 94, wait for test tube 94 to fill up, it is rotatory continuously, wait for the staff to take out test tube 94, moreover, the steam generator is simple in operation, only can carry out independent extraction when solving the vegetables and fruits of like detection usefulness of drawing at every turn among the prior art, greatly wasted the extraction time and need the staff to take in real time on the next door when drawing fruit juice and just can put into the equipment place of drawing fruit juice with new test tube 94 after the test tube 94 that fills up fruit juice, inconvenience very.

Preferably, every elevating gear 4 all includes cylinder 41 and U type support 42, U type support 42 sets up the top at frame 2 perpendicularly, the vertical inside that sets up at U type support 42 of cylinder 41 and the output of cylinder 41 run through the top of U type support 42, two the output of cylinder 41 is fixed with the bottom of fixed plate 11, will promote fixed plate 11 through two cylinders 41 and go up and down, can adjust agitating unit 5's high distance, when extracting the juice to the fruit vegetables that get into in agitator 56, the inside fruit vegetables waste material that can persist the juice of being extracted of agitating unit 5 can make agitating unit 5 installed on fixed plate 11 upwards lift through two cylinders 41, and the manual work can wash agitating unit 5.

Preferably, the stirring device 5 comprises a first motor 51, a first gear 52, a second gear 53, an output shaft 54, a stirring cover 55, a stirring barrel 56 and a plurality of stirring blades 57, the stirring barrel 56 is arranged between the frames 2, the stirring cover 55 covers the top of the stirring barrel 56, one end of the feeding pipe 3 is communicated and connected with the stirring cover 55, one end of the output shaft 54 vertically penetrates through the top of the fixing plate 11 and the top of the stirring cover 55, one end of the output shaft 54 extends into the stirring barrel 56, each stirring blade 57 is sequentially arranged on the outer wall of one end of the output shaft 54, the first gear 52 is sleeved on the other end of the output shaft 54, the first motor 51 is arranged on the top of the fixing plate 11 and located at the side of the first gear 52, the second gear 53 is sleeved on the output end of the first motor 51 and the first gear 52 is meshed with the second gear 53, during operation: after in fruit vegetables get into agitator 56 through inlet pipe 3, open first motor 51 work afterwards, later second gear 53 drives first gear 52 and meshes the operation, first gear 52 drives output shaft 54 and rotates afterwards, output shaft 54 is rotatory driving stirring blade 57 and is making the fruit vegetables that get into in agitator 56 cut into the fritter so that extrusion subassembly 8 draws the juice, the fruit vegetables that are cut apart into the fritter by stirring blade 57 in agitator 56 are less because of self when receiving the extrusion, so can be great fruit vegetables go out fast and extrude the juice.

Preferably, the extrusion subassembly 8 is including extrusion piece 81 and a plurality of lug 82, extrusion piece 81 is fixed with the one end of output shaft 54, every lug 82 sets up in the bottom of extrusion piece 81, drive output shaft 54 through two cylinders 41, output shaft 54 drives extrusion piece 81 and lug 82 and extrudees the fruit vegetables after the stirring is accomplished, extrude the inside fruit juice of fruit vegetables after the stirring is accomplished, can extrude the fruit vegetables that stirring blade cut into the fritter, the improvement separates the fruit juice and the pulp of fruit vegetables, compare in prior art to extrude the method that extracts the juice again after adopting the fritter with fruit vegetables breakage to a whole fruit vegetables extrusion extract juice, it is faster and save the time that the extrusion extracted the juice.

Preferably, the blanking device 6 includes a driving gear 61, a limiting plate 62, a plurality of positioning rings 63 and a plurality of closing plates 64, the limiting plate 62 is disposed between the inner walls of the stirring barrel 56, the driving gear 61 is sleeved on the outer side of the limiting plate 62, the inner diameter of the driving gear 61 is greater than the outer diameter of the limiting plate 62, each closing plate 64 is disposed at the top of the limiting plate 62, two ends of each positioning ring 63 are respectively hinged to the top surfaces of each closing plate 64 and the driving gear 61, the driving gear 61 is driven to rotate by the output assembly 7, the driving gear 61 drives each closing plate 64 to move, each closing plate 64 drives each closing plate 62 to stretch, when the driving gear 61 rotates clockwise, each closing plate 64 gradually opens outwards to form an opening, so that the juice of fruits and vegetables circulates to the sample packaging device 9 along the opening, when driving gear 61 anticlockwise rotation, every closing plate 64 tightens up inwards gradually, extrudees it between every closing plate 64, can block the flow to the outside of fruit vegetables juice, can carry out batch volume along with the fruit juice of fruit vegetables and pulp and flow out, improves work efficiency, reduces staff's time.

Preferably, output assembly 7 includes second motor 71, axis of rotation 72 and driven gear 73, the vertical setting of output of second motor 71 is on the inside wall of frame 2, the one end of axis of rotation 72 is connected with the output of second motor 71, driven gear 73 cover is established on the other end of axis of rotation 72, mesh between driven gear 73 and the driving gear 61, drive axis of rotation 72 and driven gear 73 through second motor 71 and rotate, driven gear 73 drives driving gear 61 and rotates, makes every closing plate 64 open and close the operation, can drive unloader 6 through output assembly 7, unloader 6 is along with output assembly 7's work and rotation, can change unloader 6's opening size to can make the inside fruit vegetables of unloader 6 realize that fruit juice and pulp batch flow flows.

Preferably, the sample packaging device 9 includes a third motor 91, a rotating rod 92, a rotating disc 93 and a plurality of test tubes 94, the work table 1 is a hollow mechanism, the third motor 91 is vertically disposed in the work table 1, one end of the rotating rod 92 is connected with an output end of the third motor 91, the other end of the rotating rod 92 extends to the outside of the work table 1 and is movably connected with the bottom of the rotating disc 93, a plurality of placing grooves 931 for placing the test tubes 94 are disposed on an outer side wall of the rotating disc 93, and each test tube 94 is clamped in each placing groove 931, during operation: at first, open the operation through third motor 91, third motor 91 is driving dwang 92 and is rotating, dwang 92 is driving carousel 93 and is carrying out the operation, carousel 93 is driving test tube 94 and is rotating and arrive appointed some, can accurately pack into different test tubes 94 with the fruit juice of separation in the fruit vegetables with pulp, need not pack into different test tubes 94 with the fruit juice in the fruit vegetables with the pulp through the staff in, reduce the expenditure of cost of labor and improve production efficiency.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. The utility model provides a sample preprocessing device for food detection, its characterized in that includes workstation (1), frame (2), inlet pipe (3), elevating gear (4), agitating unit (5), unloader (6), output assembly (7), extrusion subassembly (8) and packing sample device (9), packing sample device (9) set up on workstation (1), agitating unit (5) and elevating gear (4) all set up on frame (2), elevating gear (4) include two, two elevating gear (4) symmetry respectively set up in the both sides of agitating unit (5), two the top of elevating gear (4) is equipped with its fixed plate (11) that promote, the both ends of inlet pipe (3) communicate with each other between agitating unit (5) and fixed plate (11) respectively and are connected, agitating unit (5) are located the top of packing sample device (9), extrusion subassembly (8) set up the bottom at agitating unit (5), unloader (6) cover is established on the outer wall of agitating unit (5) and unloader (6) run through to the inside of agitating unit (5), unloader (6) are located the below of extrusion subassembly (8), output subassembly (7) are fixed on frame (2) and are located the side of agitating unit (5), cooperation operation between output subassembly (7) and unloader (6).

2. The sample pretreatment device for food detection according to claim 1, wherein each of the lifting devices (4) comprises a cylinder (41) and a U-shaped bracket (42), the U-shaped bracket (42) is vertically arranged on the top of the frame (2), the cylinder (41) is vertically arranged inside the U-shaped bracket (42) and the output end of the cylinder (41) penetrates through the top of the U-shaped bracket (42), and the output ends of the two cylinders (41) are fixed with the bottom of the fixing plate (11).

3. The sample pretreatment device for food detection according to claim 2, wherein the stirring device (5) comprises a first motor (51), a first gear (52), a second gear (53), an output shaft (54), a stirring cover (55), a stirring barrel (56) and a plurality of stirring blades (57), the stirring barrel (56) is disposed between the frames (2), the stirring cover (55) covers the top of the stirring barrel (56), one end of the feeding pipe (3) is connected with the stirring cover (55), one end of the output shaft (54) vertically penetrates through the top of the fixing plate (11) and the top of the stirring cover (55), one end of the output shaft (54) extends into the stirring barrel (56), each stirring blade (57) is disposed on the outer wall of one end of the output shaft (54), the first gear (52) is sleeved on the other end of the output shaft (54), the first motor (51) is arranged on the top of the fixed plate (11) and located beside the first gear (52), the second gear (53) is sleeved on the output end of the first motor (51), and the first gear (52) is meshed with the second gear (53).

4. The sample pretreatment device for food detection according to claim 3, wherein the pressing member (8) comprises a pressing block (81) and a plurality of protrusions (82), the pressing block (81) is fixed to one end of the output shaft (54), and each protrusion (82) is disposed at the bottom of the pressing block (81).

5. The food quality control surveys and uses sample preprocessing device of claim 3, characterized in that, unloader (6) includes driving gear (61), limiting plate (62), a plurality of holding ring (63) and a plurality of closing plate (64), limiting plate (62) set up between the inner wall of agitator (56), the outside at limiting plate (62) is established to driving gear (61) cover, the internal diameter of driving gear (61) is greater than the external diameter of limiting plate (62), every closing plate (64) set up the top at limiting plate (62), every the both ends of holding ring (63) are articulated with the top surface of every closing plate (64) and driving gear (61) respectively.

6. The sample pretreatment device for food detection according to claim 5, wherein the output assembly (7) comprises a second motor (71), a rotating shaft (72) and a driven gear (73), an output end of the second motor (71) is vertically arranged on the inner side wall of the frame (2), one end of the rotating shaft (72) is connected with an output end of the second motor (71), the driven gear (73) is sleeved on the other end of the rotating shaft (72), and the driven gear (73) is meshed with the driving gear (61).

7. The sample pretreatment device for food detection according to claim 1, wherein the sample packaging device (9) comprises a third motor (91), a rotating rod (92), a rotating disc (93) and a plurality of test tubes (94), the workbench (1) is a hollow mechanism, the third motor (91) is vertically arranged in the workbench (1), one end of the rotating rod (92) is connected with an output end of the third motor (91), the other end of the rotating rod (92) extends to the outside of the workbench (1) and is movably connected with the bottom of the rotating disc (93), a plurality of placing grooves (931) for placing the test tubes (94) are formed in the outer side wall of the rotating disc (93), and each test tube (94) is clamped in each placing groove (931).

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