Food pesticide residue detection equipment

Abstract

The invention relates to the technical field of pesticide residue detection, and particularly discloses food pesticide residue detection equipment, which comprises a treatment bin, a collection bin, a distillation pipe interface, a heating element, a cleaning bin and a connecting pipe, the connecting pipe is rotatably connected to the inner bottom wall of the treatment bin and is communicated with the interior of the collection bin, and the connecting pipe is driven to rotate by a rotating part arranged on the cleaning bin; and the extrusion part is arranged in the cleaning bin. When the cleaning bin is driven by the rotating part to rotate, cleaning liquid in the cleaning bin can clean the surface of the food material in the cleaning bin, so that pesticide residues on the surface of the food material are flushed down to a large extent, and the pesticide residues enter the collecting bin to be collected; then the pesticide residues and the cleaning liquid in the collecting bin are jointly heated through the heating element, the cleaning liquid is heated and distilled, the pesticide residues are reserved in the collecting bin, the concentration of the pesticide residues in the mixed liquid in the collecting bin is increased, and the follow-up detection precision of the pesticide residues is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pesticide residue detection, in particular to food pesticide residue detection equipment. Background Art

[0002] Before fruit and melon food raw materials are processed into food, it is necessary to test the pesticide residues in the fruit and melon food raw materials.

[0003] In the prior art, for example, Chinese patent number CN114384214A discloses a device for detecting pesticide residues on the surface of fruits and vegetables, comprising: a base and fixed rods fixedly mounted on the base and symmetrically arranged, a support plate fixed on the fixed rods, and a detector for detecting pesticide residues fixed on the base; a driving mechanism is arranged between the base and the support plate, a No. 2 receiving plate with a circular hole is fixed on the driving mechanism, a limiting plate is fixed between the fixed rods, a test tube fitted with the limiting plate is received in the circular hole opened on the No. 2 receiving plate, and a limiting hole consistent with the diameter of the test tube is also arranged on the limiting plate; a filtering mechanism connected to the driving mechanism is also arranged between the fixed rods, and the driving mechanism drives the filtering mechanism to move; an intermittent lifting mechanism connected to the driving mechanism is also arranged on the support plate, and the driving mechanism drives the intermittent lifting mechanism to cooperate with the filtering mechanism.

[0004] For another example, Chinese patent number CN113884348A discloses a pesticide residue detection device, including a crushing box, which is a vertical rectangular cavity structure, and a feed hopper is fixedly connected to the center of the upper end surface of the crushing box, a water tank is arranged on the front side below the crushing box, and a water pump is fixedly connected to the bottom surface of the water tank, the output end of the water pump is fixedly connected to a water pipe, and the upper end of the water pipe is fixedly connected to a three-way joint, and the left and right ends of the three-way joint are connected to branch pipes, the inner sides of the branch pipes are equidistantly connected to four nozzles, and the nozzles are respectively located at the upper ends of the left and right side walls inside the crushing box, a crushing mechanism is arranged inside the crushing box, and a driving mechanism is arranged at the upper end of the rear side of the crushing box.

[0005] In summary, the pesticide residue detection equipment in the prior art can only detect pesticide residues on the surface of raw materials or inside raw materials. This method cannot comprehensively detect pesticide residues on the surface and inside fruit and vegetable food raw materials, resulting in low accuracy in pesticide residue detection of food raw materials. The detection equipment in the prior art does not have the function of collecting surface pesticide residues and internal pesticide residues of food raw materials, and therefore needs to transfer food raw materials to independently collect and sample surface pesticide residues and internal pesticide residues, which affects the efficiency of detection. In addition, in the prior art, the collection efficiency of pesticide residues collected on the surface of food raw materials is low, that is, the concentration of the collected pesticide residues is low, which affects the accuracy of subsequent detection operations. Summary of the invention

[0006] The purpose of the present invention is to provide a food pesticide residue detection device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a food pesticide residue detection device, comprising: A processing chamber with an open top and a detachable cover plate, a collecting chamber with a sealed interior at the bottom of the processing chamber, and a distillation tube interface and a heating element provided on the collecting chamber; A cleaning chamber installed in the processing chamber and having an outer diameter decreasing from top to bottom, wherein a connecting pipe is coaxially connected to the bottom of the cleaning chamber, the connecting pipe is rotatably connected to the bottom wall of the processing chamber and is connected to the inside of the collecting chamber, and the connecting pipe is driven to rotate by a rotating part provided on the cleaning chamber; A squeezing portion is arranged in the cleaning chamber.

[0008] Preferably, the heating element is an electric heating rod installed on the collecting bin, with the heating end located inside the collecting bin.

[0009] Preferably, the rotating part comprises: A driven gear fixedly sleeved on the connecting pipe; A motor is vertically installed at the bottom of the cleaning bin, and a driving gear is drivingly connected to the output shaft of the motor, and the driving gear is externally meshed with the driven gear.

[0010] Preferably, two ear plates are provided on the outer edge of the cover plate, and two lifting cylinders are installed on the outer wall of the processing chamber, and the cylinder rods of the two lifting cylinders are respectively driven and connected to the two ear plates.

[0011] Preferably, the extrusion portion comprises: A lower tray coaxially disposed in the cleaning chamber; A threaded sleeve rotatably connected to the cover plate, wherein the lower end of the threaded sleeve extends into the cleaning chamber; A threaded rod is threadedly provided on the threaded sleeve, the lower end of the threaded rod is coaxially connected to an upper pressure plate, and a clamping space is enclosed between the upper pressure plate and the lower tray; A buoyancy stop assembly is used to stop the rotation of the threaded sleeve when the level of the cleaning liquid in the cleaning bin drops to a fixed position.

[0012] Preferably, the buoyancy stop assembly comprises: A follower ring fixedly sleeved on the threaded sleeve, wherein the upper end surface of the follower ring is provided with a plurality of locking grooves in the form of notches along its axial array; A locking ring movably sleeved on the threaded sleeve and located above the follower ring, wherein the lower end surface of the locking ring is provided with a plurality of locking blocks that can be correspondingly engaged in the locking grooves; A connecting rod is arranged on two opposite sides of the outer edge of the locking ring, the lower end of the connecting rod slides through the cover plate and extends into the cleaning bin, and a floating ball is also arranged at the lower end of the connecting rod.

[0013] Preferably, a fixing ring is provided at the upper end of the threaded sleeve, a spring is wound around the threaded sleeve, and the spring elastically presses downward against a locking ring.

[0014] Preferably, a spoiler is provided in the cleaning chamber, and the spoiler comprises: A plurality of arc-shaped spoilers are hingedly connected to the inner wall of the upper end of the cleaning bin in an axial array along the cleaning bin; A sliding rod horizontally slidably penetrates the outer edge of the cleaning chamber, and a sliding pin is provided at one end of the sliding rod penetrating into the cleaning chamber; A vertical plate fixedly connected to the outer wall of the upper side of the arc-shaped spoiler, wherein the vertical plate is provided with a waist-shaped hole for the sliding pin to be inserted and can slide freely; A counterweight ball is arranged on the other end of the sliding rod.

[0015] Preferably, one end of the sliding rod passing through the cleaning bin is fixedly sleeved with a limiting ring, and a tension spring is also sleeved around the sliding rod, and the tension spring pulls the limiting ring toward the radial inner side of the cleaning bin.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a cleaning chamber, and when the cleaning chamber is driven to rotate by the rotating part, the cleaning liquid in the cleaning chamber can clean the surface of the food material in the cleaning chamber, thereby washing off the pesticide residues on the surface of the food material to a large extent, and enter the collecting chamber for collection, and then the pesticide residues and the cleaning liquid in the collecting chamber are heated together by the heating element, the cleaning liquid will be heated and distilled, and the pesticide residues will remain in the collecting chamber, thereby increasing the concentration of the pesticide residues in the mixed liquid in the collecting chamber, which is helpful for improving the subsequent detection accuracy of the pesticide residues. In addition, through the extrusion part, when the cleaning chamber rotates and the liquid level in the cleaning chamber drops to a fixed position, the action is triggered, and the food material whose surface in the cleaning chamber has been washed is squeezed and crushed, so that samples of the pesticide residues inside the food material can be collected; The present invention provides an arc-shaped spoiler. When the cleaning chamber rotates, the cleaning liquid in the cleaning chamber will flow from top to bottom along the inner wall of the cleaning chamber. After the arc-shaped spoiler is turned upward, the cleaning liquid flowing on the inner wall of the cleaning chamber will be disturbed by the arc-shaped spoiler and flow downward, so that the cleaning liquid can impact the food material placed in the clamping space, preventing the cleaning liquid from flowing in the cleaning chamber, resulting in the inability to effectively clean the food material. The present invention provides a buoyancy stop assembly, a threaded rod, and a threaded sleeve. When the cleaning liquid level in the cleaning bin is high, it means that the cleaning liquid in the cleaning bin is in a state of flushing the surface of the food material. The buoyancy stop assembly does not lock and stop the threaded sleeve. In this way, when the cleaning bin rotates, the food material impacted by the water flow of the cleaning liquid can rotate along with the rotation of the cleaning bin, thereby increasing the flushing area of ​​the food material surface by the cleaning liquid. When the cleaning liquid enters the collection bin together with the pesticide residues on the flushed surface, the liquid level in the cleaning bin will drop or the liquid level will approach zero. The buoyancy stop assembly The trigger action causes the threaded sleeve to be locked and stopped, so that when the cleaning chamber rotates, the threaded sleeve is in a stationary state, and the food material is subjected to the force of the lower tray, so that the food material rotates with the cleaning chamber, and then can drive the threaded rod to rotate, and the threaded rod will also be threadedly engaged with the threaded sleeve, and then as the threaded rod rotates, the threaded rod will gradually move downward, and the upper pressure plate will squeeze the food material on the lower tray, gradually squeezing and crushing the food material, so that the pesticide residue inside the food material is squeezed out along with the juice inside the food material, and then enters the collection chamber for collection again. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A magnified schematic diagram of the local structure at point A; Figure 3 for Figure 1 Schematic diagram of the structure from an upward angle; Figure 4 for Figure 1 A schematic cross-sectional view of the structure; Figure 5 for Figure 1 The schematic diagram of the structure after the processing chamber and the cover plate are omitted; Figure 6 It is a schematic diagram of the structure after the cleaning chamber and the arc-shaped spoiler are assembled in the present invention; Figure 7 for Figure 6 Schematic diagram of the structure from an upward angle; Figure 8 for Figure 6 A schematic cross-sectional view of the structure; Fig. 9 for Figure 8 A magnified schematic diagram of the local structure at B in the middle; Fig.10 for Figure 6 Schematic diagram of the explosion decomposition of the structure; Fig.11 It is a schematic cross-sectional structural diagram of the cleaning chamber in the present invention; Fig.12 It is a structural schematic diagram of the follower ring in the present invention; Fig.13 It is a schematic diagram of the structure of the locking ring in the present invention.

[0018] In the figure: 1-motor; 2-collection chamber; 3-electric heating rod; 4-processing chamber; 5-lifting cylinder; 6-cover plate; 7-threaded rod; 8-follower ring; 9-connecting rod; 10-spring; 11-threaded sleeve; 12-fixing ring; 13-locking ring; 14-distillation tube interface; 15-driven gear; 16-lower tray; 17-upper pressure plate; 18-weighted ball; 19-arc spoiler; 20-cleaning chamber; 21-floating ball; 22-hollow plate; 23-connecting pipe; 24-driving gear; 25-sliding rod; 26-tension spring; 27-limiting ring; 28-vertical plate; 29-waist-shaped hole; 30-sliding pin; 31-locking groove; 32-locking block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 13 As shown, the present invention provides a technical solution: a food pesticide residue detection device, comprising: A processing chamber 4 with an open top and a detachable cover plate 6 is provided, and a collecting chamber 2 with a sealed interior is provided at the bottom of the processing chamber 4. A distillation pipe interface 14 and a heating element are provided on the collecting chamber 2. The distillation pipe interface 14 is connected to an external cooling pipe through a pipeline; A cleaning chamber 20 is installed in the processing chamber 4 and has an outer diameter that decreases from top to bottom. A connecting pipe 23 is coaxially connected to the bottom of the cleaning chamber 20. The connecting pipe 23 is rotatably connected to the bottom wall of the processing chamber 4 and is connected to the inside of the collecting chamber 2, so that the cleaning chamber 20, the connecting pipe 23 and the collecting chamber 2 are in a connected state. In addition, an intelligent control valve can be installed on the connecting pipe 23. The intelligent control valve is used to control the flow of liquid in the connecting pipe 23. The connecting pipe 23 is driven to rotate by a rotating part arranged on the cleaning chamber 20. The squeezing part is arranged in the cleaning chamber 20. When the liquid level of the cleaning liquid (set to water in this embodiment) inside the cleaning chamber 20 is high, the squeezing part will not be triggered to act. When the liquid level of the water is low, the squeezing part can be triggered to act and can squeeze the melon and fruit agricultural products as the cleaning chamber 20 rotates.

[0021] In a food pesticide residue detection device described in the present invention, the cover plate 6 is opened, and agricultural products such as melons and fruits are placed in the cleaning chamber 20, and then the rotating part is started. The rotating part moves and drives the cleaning chamber 20 to rotate. At this time, the water level in the cleaning chamber 20 is relatively high, and the squeezing part will not trigger the action. Then, when the cleaning chamber 20 rotates, the water in the cleaning chamber 20 will impact the surface of the melons and fruits agricultural products, and thus the residues on the surface of the melons and fruits agricultural products can be washed off to a large extent. After the washing is completed, the intelligent control valve is opened to connect the connecting pipe 23, so that the mixed liquid of water and pesticide residues in the cleaning chamber 20 will flow into the collecting chamber 2 through the connecting pipe 23, and then the mixed liquid is heated by the heating element to evaporate the water in the mixed liquid, and then enters the external cooling pipe through the distillation pipe interface 14 for condensation, while the pesticide residues remain in the collecting chamber 2, so that the concentration of the pesticide residues in the mixed liquid increases, and the subsequent detection of pesticide residues When the cleaning chamber 20 is rotated, the squeezing part will squeeze the fruit and agricultural products in the cleaning chamber 20, squeeze out the juice and pesticide residues in the fruit and agricultural products, and flow into the collecting chamber 2 for collection. At this time, the mixed liquid of the juice and the pesticide residue does not need to be heated and distilled, because the amount of the juice itself is not large, and the volume of the pesticide residue in the mixed liquid mixed with the juice accounts for a large proportion, so the mixed liquid of the juice and the pesticide residue does not need to be heated, and the sample can be directly extracted. In this way, the collection of the pesticide residues on the surface of the fruit and agricultural products and the pesticide residues inside the fruit and agricultural products is completed.

[0022] like Figure 1-Figure 13 As shown, the heating element is an electric heating rod 3 installed on the collecting bin 2 , and the heating end is located inside the collecting bin 2 .

[0023] In the food pesticide residue detection device described in the present invention, the electric heating rod 3 is energized by an external power source. When the electric heating rod is energized, its heating end will generate heat and heat the liquid in the collection chamber 2.

[0024] like Figure 1-Figure 13 As shown, the rotating part includes: A driven gear 15 fixedly sleeved on the connecting tube 23, the driven gear 15 can rotate together with the connecting tube 23; The motor 1 is vertically mounted at the bottom of the cleaning chamber 20 , and a driving gear 24 is drivingly connected to the output shaft of the motor 1 . The driving gear 24 is externally meshed with the driven gear 15 .

[0025] In a food pesticide residue detection device described in the present invention, an external power source supplies power to the motor 1, the output shaft of the motor 1 rotates, thereby driving the driving gear 24 to rotate, and then through the external engagement of the driving gear 24 with the driven gear 15, the driven gear 15 can be driven to rotate, so that the connecting pipe 23 and the cleaning chamber 20 rotate together. When the cleaning chamber 20 rotates, the water in the cleaning chamber 20 flows and can wash the surface of fruits and agricultural products.

[0026] like Figure 1-Figure 13 As shown, two ear plates are provided on the outer edge of the cover plate 6, and two lifting cylinders 5 are installed on the outer wall of the processing chamber 4. The cylinder rods of the two lifting cylinders 5 are respectively driven and connected with the two ear plates.

[0027] In the food pesticide residue detection equipment described in the present invention, when putting fruit and agricultural products into the cleaning chamber 20 or taking out fruit and agricultural products from the cleaning chamber 20 after the pesticide residue is extracted, the lifting cylinder 5 is first started, the cylinder rod of the lifting cylinder 5 extends, and drives the ear plate to move upward, and then drives the cover plate 6 to move upward, so that the mouth of the processing chamber 4 is opened, so that fruit and agricultural products can be put into the cleaning chamber 20 or taken out from the cleaning chamber 20 after the pesticide residue is extracted.

[0028] like Figure 1-Figure 13 As shown, the extrusion portion includes: The lower tray 16 is coaxially arranged in the cleaning chamber 20. Specifically, a hollow plate 22 with multiple hollows is welded on the lower inner wall of the cleaning chamber 20, a fixed shaft is welded on the hollow plate 22, and the lower tray 16 is welded on the upper end of the fixed shaft, so that the lower tray 16 is connected in the cleaning chamber 20; The threaded sleeve 11 is rotatably connected to the cover plate 6 by installing a bearing, and the lower end of the threaded sleeve 11 extends into the cleaning chamber 20; The threaded rod 7 is threadedly mounted on the threaded sleeve 11, and the lower end of the threaded rod 7 is coaxially connected to an upper pressing plate 17. A clamping space is formed between the upper pressing plate 17 and the lower tray 16. The fruit and agricultural products are placed in the clamping space, and then the threaded sleeve 11 is grasped by hand or a tool, and the threaded rod 7 is rotated. The threaded rod 7 and the threaded sleeve 11 are screwed together, and the threaded rod 7 moves downward, so that the upper pressing plate 17 presses the fruit and agricultural products, and the fruit and agricultural products are clamped and fixed in the clamping space. A buoyancy stop assembly is used to stop the rotation of the threaded sleeve 11 when the level of the cleaning liquid in the cleaning chamber 20 drops to a fixed position.

[0029] In a food pesticide residue detection device described in the present invention, when the water level in the cleaning chamber 20 is relatively high, the buoyancy stop assembly does not lock the threaded sleeve 11. At this time, when the threaded rod 7 rotates, the threaded sleeve 11 can also rotate, so that the water in the cleaning chamber 20 can rinse the surface of the fruit and agricultural products. When the water level in the cleaning chamber 20 is relatively low or no liquid is retained, the buoyancy stop assembly will lock and stop the threaded sleeve 11, so that when the cleaning chamber 20 rotates, the threaded sleeve 11 will not rotate, thereby causing the threaded rod 7 to be threadedly engaged with the threaded sleeve 11, causing the threaded rod 7 to move downward, and causing the upper pressure plate 17 to squeeze the fruit and agricultural products.

[0030] like Figure 1-Figure 13 As shown, the buoyancy stop assembly includes: A follower ring 8 is fixedly sleeved on the threaded sleeve 11, and a plurality of locking grooves 31 in the form of notches are formed in an axial array on the upper end surface of the follower ring 8; A locking ring 13 movably sleeved on the threaded sleeve 11 and located above the follower ring 8, a lower end surface of the locking ring 13 is provided with a plurality of locking blocks 32 that can be correspondingly engaged in the locking grooves 31, when the locking blocks 32 are engaged in the locking grooves 31, the follower ring 8 and the locking ring 13 are in a relatively static state; The connecting rod 9 is arranged on the opposite sides of the outer edge of the locking ring 13. The lower end of the connecting rod 9 slides through the cover plate 6 and extends into the cleaning chamber 20. A float 21 is also arranged at the lower end of the connecting rod 9. The float 21 is affected by the buoyancy of the water in the cleaning chamber 20 and can rise and fall with the change of buoyancy.

[0031] In a food pesticide residue detection device described in the present invention, when the surface of fruit and agricultural products is washed to extract pesticide residues, the water level in the washing chamber 20 is relatively high. Under the influence of buoyancy, the float 21 moves upward and drives the connecting rod 9 to move upward, so that the locking ring 13 is away from the follower ring 8. At this time, the threaded sleeve 11 can rotate, so that when the fruit and agricultural products rotate, the threaded rod 7 rotates synchronously, and the threaded sleeve 11 also rotates synchronously, and the threaded rod 7 and the threaded sleeve 11 are not threadedly engaged, so that the surface of the fruit and agricultural products can be washed. When the water level in the washing chamber 20 drops, the float 21 also moves downward, and drives the locking ring 13 to move downward, so that the locking block 3 on the locking ring 13 2 is engaged in the locking groove 31 of the follower ring 8, and the locking ring 13 cannot rotate due to the limiting effect of the connecting rod 9, so that the threaded sleeve 11 is locked and stopped. In this way, when the fruit and agricultural products rotate in the cleaning chamber, the threaded rod 7 also rotates synchronously, and the threaded sleeve 11 is in a locked state. The threaded rod 7 is screwed with the threads on the threaded sleeve 11, and drives the upper pressing plate 17 to move downward to squeeze the fruit and agricultural products, so that the juice and pesticide residues in the fruit and agricultural products flow out from the squeezed parts of the fruit and agricultural products and enter the collecting chamber 2 for collection. At the same time, due to the rotation of the cleaning chamber 20, the fruit and agricultural products are subjected to centrifugal force, which accelerates the juice and pesticide residues to be thrown out from the squeezed parts, thereby improving the collection efficiency of the pesticide residues.

[0032] like Figure 1-Figure 13 As shown, a fixing ring 12 is provided at the upper end of the threaded sleeve 11, a spring 10 is wound around the threaded sleeve 11, and the spring 10 elastically presses against a locking ring 13 downward.

[0033] In a food pesticide residue detection device described in the present invention, by arranging a spring 10, when the liquid level in the cleaning chamber 20 drops, the spring 10 can quickly elastically push against the locking ring 13, so that the locking ring 13 can quickly move downward and the locking block 32 can be engaged with the locking groove 31.

[0034] like Figure 1-Figure 13 As shown, a spoiler is provided in the cleaning chamber 20, and the spoiler includes: A plurality of arc-shaped spoilers 19 are hingedly connected to the inner wall of the upper end of the cleaning chamber 20 in an axial array along the cleaning chamber 20. When the plurality of arc-shaped spoilers 19 are turned upward, they can cover most of the area inside the cleaning chamber 20; A sliding rod 25 is horizontally slidably provided on the outer edge of the cleaning chamber 20, and a sliding pin 30 is provided at one end of the sliding rod 25 that penetrates into the cleaning chamber 20; A vertical plate 28 is fixedly connected to the outer wall of the upper side of the arc-shaped spoiler 19. The vertical plate 28 is provided with a waist-shaped hole 29 for the sliding pin 30 to be inserted and can slide freely. When the sliding rod 25 slides on the cleaning chamber 20, it will drive the sliding pin 30 to slide in the waist-shaped hole 29, and thereby drive the arc-shaped spoiler 19 to swing up and down along the hinge with the inner wall of the cleaning chamber 20; The counterweight ball 18 provided on the other end of the sliding rod 25 also rotates synchronously around the axial direction of the cleaning bin 20 when the cleaning bin 20 rotates, so that the counterweight ball 18 is subjected to a larger centrifugal force. Under the action of the centrifugal force, the counterweight ball 18 drives the sliding rod 25 to slide toward the radial outer side of the cleaning bin 20.

[0035] In a food pesticide residue detection device described in the present invention, when the cleaning bin 20 rotates, the counterweight ball 18 also rotates synchronously around the axial direction of the cleaning bin 20, so that the counterweight ball 18 is subjected to a large centrifugal force. Under the action of the centrifugal force, the counterweight ball 18 drives the sliding rod 25 to slide toward the radial outer side of the cleaning bin 20, thereby causing the sliding pin 30 to slide in the waist-shaped hole 29. When sliding, the arc-shaped spoiler plate 19 is driven to swing upward along the hinge with the inner wall of the cleaning bin 20, so that the inner arc surfaces of multiple arc-shaped spoilers 19 face downward. In this way, when the cleaning bin 20 rotates, the water in the cleaning bin 20 flows on the inner wall of the cleaning bin 20, and is affected by the spoiler effect of the arc-shaped spoiler plate 19, so that the water flows back into the cleaning bin 20 along the inner arc surface of the arc-shaped spoiler plate 19, and the water flowing into the cleaning bin 20 from the arc-shaped spoiler plate 19 can produce a large impact force on the melon and fruit agricultural products, thereby improving the washing effect on the surface of the melon and fruit agricultural products.

[0036] like Figure 1-Figure 13 As shown, one end of the sliding rod 25 passing through the cleaning bin 20 is fixedly sleeved with a limit ring 27 , and a tension spring 26 is also sleeved around the sliding rod 25 , and the tension spring 26 pulls the limit ring 27 toward the radial inner side of the cleaning bin 20 .

[0037] In a food pesticide residue detection device described in the present invention, a tension spring 26 is provided so that when the cleaning chamber 20 is in a stationary state, the tension spring 26 exerts a pulling force on the limit ring 27, causing the sliding rod 25 to slide radially inwardly of the cleaning chamber 20 and drive the arc-shaped spoiler 19 to swing downward and reset.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food pesticide residue detection device, characterized in that: include: A processing chamber (4) with an open top and a cover plate (6) detachably connected thereto, wherein a collecting chamber (2) with a sealed interior is provided at the bottom of the processing chamber (4), and a distillation tube interface (14) and a heating element are provided on the collecting chamber (2); A cleaning chamber (20) installed in the processing chamber (4) and having an outer diameter decreasing from top to bottom, wherein a connecting pipe (23) is coaxially connected to the bottom of the cleaning chamber (20), wherein the connecting pipe (23) is rotatably connected to the bottom wall of the processing chamber (4) and is connected to the inside of the collecting chamber (2), and wherein the connecting pipe (23) is driven to rotate by a rotating part provided on the cleaning chamber (20); A squeezing portion is arranged in the cleaning chamber (20).

2. A food pesticide residue detection device according to claim 1, characterized in that: The heating element is an electric heating rod (3) which is mounted on the collection bin (2) and has a heating end located inside the collection bin (2).

3. A food pesticide residue detection device according to claim 2, characterized in that: The rotating part comprises: A driven gear (15) fixedly sleeved on the connecting pipe (23); A motor (1) is vertically mounted at the bottom of the processing chamber (4); an output shaft of the motor (1) passes through the processing chamber (4) and is drivingly connected to a driving gear (24); the driving gear (24) is externally meshed with a driven gear (15).

4. A food pesticide residue detection device according to claim 3, characterized in that: Two ear plates are provided on the outer edge of the cover plate (6), and two lifting cylinders (5) are installed on the outer wall of the processing chamber (4), and the cylinder rods of the two lifting cylinders (5) are respectively connected to the two ear plates for driving.

5. A food pesticide residue detection device according to claim 4, characterized in that: The extrusion portion comprises: A lower tray (16) coaxially disposed in the cleaning chamber (20); A threaded sleeve (11) rotatably connected to the cover plate (6), wherein the lower end of the threaded sleeve (11) extends into the cleaning chamber (20); A threaded rod (7) is threadedly inserted into the threaded sleeve (11), the lower end of the threaded rod (7) is coaxially connected to an upper pressure plate (17), and a clamping space is enclosed between the upper pressure plate (17) and the lower tray (16); A buoyancy stop assembly is used to stop the rotation of the threaded sleeve (11) when the level of the cleaning liquid in the cleaning chamber (20) drops to a fixed position.

6. A food pesticide residue detection device according to claim 5, characterized in that: The buoyancy stop assembly comprises: A follower ring (8) fixedly sleeved on the threaded sleeve (11), wherein the upper end surface of the follower ring (8) is provided with a plurality of locking grooves (31) in the form of notches along an axial array; A locking ring (13) movably sleeved on the threaded sleeve (11) and located above the follower ring (8), wherein the lower end surface of the locking ring (13) is provided with a plurality of locking blocks (32) capable of correspondingly engaging in the locking grooves (31); A connecting rod (9) is provided on opposite sides of the outer edge of the locking ring (13), the lower end of the connecting rod (9) slidingly penetrates the cover plate (6) and extends into the cleaning chamber (20), and a floating ball (21) is also provided at the lower end of the connecting rod (9).

7. A food pesticide residue detection device according to claim 6, characterized in that: A fixing ring (12) is provided at the upper end of the threaded sleeve (11), a spring (10) is wound around the threaded sleeve (11), and the spring (10) elastically presses downward against a locking ring (13).

8. A food pesticide residue detection device according to claim 7, characterized in that: A spoiler is provided in the cleaning chamber (20), and the spoiler comprises: A plurality of arc-shaped spoilers (19) hingedly connected to the inner wall of the upper end of the cleaning bin (20); A sliding rod (25) is horizontally slidably disposed on the outer edge of the cleaning chamber (20), and a sliding pin (30) is disposed at one end of the sliding rod (25) that penetrates into the cleaning chamber (20); A vertical plate (28) fixedly connected to the upper outer wall of the arc-shaped spoiler (19), the vertical plate (28) being provided with a waist-shaped hole (29) for the sliding pin (30) to be inserted and capable of sliding freely; A counterweight ball (18) is arranged on the other end of the sliding rod (25).

9. A food pesticide residue detection device according to claim 8, characterized in that: One end of the sliding rod (25) passing through the cleaning chamber (20) is fixedly sleeved with a limit ring (27), and a tension spring (26) is also sleeved around the sliding rod (25), and the tension spring (26) pulls the limit ring (27) toward the radial inner side of the cleaning chamber (20).

10. The food pesticide residue detection device according to claim 8, characterized in that: The plurality of arc-shaped spoilers (19) are arranged in an array along the axial direction of the cleaning chamber (20).

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