Agricultural product pesticide residue detection device
By designing an agricultural product testing device that integrates crushing and solid-liquid separation functions, the problems of cumbersome operation of traditional devices and poor solid-liquid mixing uniformity are solved, and more efficient and accurate pesticide residue detection is achieved.
Patent Information
- Application Number
- CN202411956455.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-03-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The traditional agricultural product crushing device is complicated to operate and takes up a large space. The materials are easily spilled or lost after crushing, which affects the accuracy and reliability of the detection results, and is difficult to ensure the uniformity of solid-liquid mixing.
A pesticide residue detection device for agricultural products is designed, integrating crushing and solid-liquid separation functions, crushing and stirring through a motor-driven crushing mechanism, and solid-liquid separation is achieved using a rotating shell and a liquid separation chamber to ensure uniform mixing of solid-liquid.
The device simplifies the operation process, avoids the loss and spilling of materials after crushing, ensures uniformity of solid-liquid mixing, and improves the accuracy and reliability of the test results.
Smart Images
Figure CN119657292A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pesticide residue detection equipment, and in particular to a device for detecting pesticide residues in agricultural products. Background Art
[0002] In the field of agricultural product pesticide residue detection, accurate determination of pesticide residues is crucial to ensuring food safety. The preliminary treatment of agricultural product samples is a key step in the detection process, and the treatment method directly affects the reliability and accuracy of the test results.
[0003] At present, most pesticide residue detection methods require agricultural product samples to be in a finely crushed state, which is mainly based on the following reasons. First, crushed agricultural products can increase the contact area with the detection reagent, making the pesticide components easier to extract and detect. For example, when using chemical analysis methods to detect pesticide residues, the smaller the particles of crushed agricultural products, the more fully the detection reagents can penetrate into the material and react with the residual pesticide molecules, thereby improving the sensitivity and accuracy of the detection. Secondly, for some advanced detection technologies, such as spectral analysis and chromatographic analysis, uniformly crushed samples can ensure the stability and consistency of the detection signal and reduce the detection error caused by uneven samples.
[0004] However, traditional agricultural product crushing devices usually only have a single crushing function. After the agricultural products are crushed, the crushed materials need to be transferred to a special solid-liquid separation device to obtain samples for testing. This process is not only cumbersome to operate, but also requires a large space to accommodate multiple devices. In addition, during the material transfer process, the materials are prone to spillage, loss, and external contamination, which in turn affects the accuracy and reliability of the final test results.
[0005] In addition, in the subsequent testing and analysis, in order to ensure that the test data can truly reflect the overall situation of pesticide residues in agricultural products, there are high requirements for the uniformity of solid-liquid mixing of agricultural products after crushing. However, traditional processing methods make it difficult to ensure that the solid and liquid parts can be fully and evenly mixed after crushing, which often leads to insufficient representativeness of the test samples, resulting in deviations in the test results and the inability to accurately determine the pesticide residue content in agricultural products.
[0006] Therefore, it is necessary to provide a device for detecting pesticide residues in agricultural products to solve the above technical problems. Summary of the invention
[0007] In view of the problems existing in the prior art, the present invention provides a device for detecting pesticide residues in agricultural products.
[0008] The technical solution adopted by the present invention to solve the technical problem is: an agricultural product pesticide residue detection device, comprising a support base and a support bottom plate, the support base and the support bottom plate are both metal components, the support bottom plate is fixedly installed directly above the support base, a top rod is mounted at the top of the support base, an end cover is fixedly installed at the top of the top rod, a feeding port is opened at the top of the end cover, a drag ring is concentrically installed at the lower end surface of the end cover, a rotating shell is rotatably installed at the bottom of the drag ring, the inner wall of the rotating shell is symmetrically opened with arc grooves, the outer wall of the rotating shell is sleeved with a lifting shell, a crushing mechanism for crushing agricultural products is installed between the support bottom plate and the end cover, and the crushing mechanism is driven to work by a motor assembly; The crushing mechanism includes a rotating shaft rotatably installed at the center line of the supporting bottom plate and the end cover, and the rotating shaft runs through the supporting bottom plate and the end cover. A swing arm is installed at the lower position of the outer wall of the rotating shaft through a pin shaft. The two swing arms are distributed in a circumferential matrix with the center line of the rotating shaft as the axis. The rotation angle of the two swing arms is 180°. An extension rod is fixedly installed at the lower end position of the swing arm, and a crushing blade is installed at the end of the extension rod. A convex block is sleeved on the outer wall of the rotating shaft and located above the swing arm. An annular groove is opened in the center of the large-diameter outer ring of the convex block, and a support arm is symmetrically hinged on the small-diameter outer ring of the convex block. The bottom of the support arm is connected to the swing arm. The top of the arm is connected by a latch, and a bracket is fixedly installed at the lower end surface of the end cover. Multiple brackets are distributed at equal angles in the circumferential direction with the center line of the rotating shaft as the axis. A ball head rod is rotatably installed at the bottom of the bracket. One end of the ball head rod is inserted in the annular groove. A T-shaped rod is symmetrically welded on the lower end surface of the end cover. The cross section of the T-shaped rod is rectangular. A counterweight slider is sleeved on the outer wall of the T-shaped rod. A traction rope is embedded at the upper edge of the outer side of the counterweight slider. The free end of the traction rope is fixedly installed at the other end of the ball head rod. An extrusion rod is welded on the outer side of the counterweight slider, and the end of the extrusion rod is inserted in the arc groove. A conical protective shell is sleeved near the bottom of the rotating shaft, and the bottom of the conical protective shell is fixed to the upper end surface of the supporting bottom plate, an annular liquid separator plate is fixedly installed on the outer wall of the conical protective shell, the cross section of the annular liquid separator plate is L-shaped, a through hole is opened on the top of the annular liquid separator plate, a leakage hole is opened in the inner part of the supporting bottom plate and in the area between the annular liquid separator plate and the conical protective shell, a straight rod is installed at an equal angle on the bottom end surface of the rotating shell, and a circular plate is connected to the bottom of the straight rod, the inner circle of the circular plate is in contact with the outer wall of the conical protective shell but not connected, a separation hole is opened inside the circular plate, and the separation hole is equal in diameter to the through hole; The motor assembly includes a motor frame fixedly installed on the inner side of the support base, a driving motor is installed on the top side of the motor frame, a driving gear is installed on the output shaft end of the driving motor, one side of the driving gear is meshed and connected to the driven gear, and the driven gear is concentrically installed on the bottom end face of the rotating shaft.
[0009] Preferably, an annular outer plate is fixedly installed at a concentric position on the lower end surface of the end cover, the bottom cross-section of the annular outer plate is arc-shaped, and the arc-shaped area of the annular outer plate is cocentric with the pin shaft for installing the swing arm, and an arc chamfer is provided on the edge of the bottom end surface of the annular outer plate.
[0010] Preferably, the outer wall of the extension rod is rotatably sleeved with an outer sleeve at a lower position, and the outer wall of the outer sleeve is welded with crushing rods at equal angles along the circumference of the outer wall at a lower position.
[0011] Preferably, a placement groove is provided on the upper outer wall of the outer sleeve, and the extension line of the arc-shaped area of the annular outer plate is located in the placement groove. A silicone sleeve is installed inside the placement groove, and an outer ring of the silicone sleeve is provided with anti-slip grooves.
[0012] Preferably, circular holes are opened at equal angles along the circumferential direction at the bottom outer ring position of the lifting shell, a limit rod is placed in the circular hole, and the bottom of the limit rod is fixed to the upper end surface of the supporting bottom plate, and a lifting handle is installed on the outer side wall of the lifting shell.
[0013] Preferably, the rotating shell is a component made of hard plastic material, and a metal gasket is embedded in the inner wall of the arc-shaped groove.
[0014] Preferably, a liquid separation hose is fixedly installed on the lower end surface of the supporting bottom plate, and several liquid separation hoses all overlap with the leakage holes.
[0015] Preferably, a drainage groove is provided on the upper end surface of the supporting bottom plate and in the area between the conical protective shell and the annular liquid separation plate, and each of the drainage grooves is connected to two adjacent leakage holes.
[0016] Compared with the related art, the agricultural product pesticide residue detection device provided by the present invention has the following beneficial effects: (1) The present invention provides a device for detecting pesticide residues in agricultural products. When it is necessary to perform a crushing operation on agricultural products, a crushing chamber is provided which can change its shape automatically. During the crushing process of agricultural products, the crushing chamber is in a closed state. After the agricultural products are crushed and stirred evenly, the separation hole and the through hole overlap again. The liquid generated after the crushing of the agricultural products will flow from the separation hole and the through hole into the liquid separation chamber and overflow from the leakage hole for collection. When the motor assembly stops completely, the operator can push the lifting shell upward to open the bottom of the crushing chamber to collect the crushed solid agricultural products. This method can separate the solid and liquid of agricultural products into a crushing mechanism, making the entire operation process more convenient. In addition, the integrated method will not cause the loss and spillage of the agricultural product detection object after crushing. At the same time, it can ensure that the solid part and the liquid part can be fully and evenly mixed after crushing, ensuring that the detection result is more accurate.
[0017] (2) The present invention provides a device for detecting pesticide residues in agricultural products. When the crushing mechanism of the present invention enters the working state, the deflection of the swing arm will drive the outer sleeve to contact the bottom of the annular outer plate, and the outer sleeve will make a circular motion along the bottom of the annular outer plate. At the same time, under the action of the friction between the two, the outer sleeve will rotate on the outer wall of the extension rod, driving a plurality of crushing rods to work. The rotating crushing rods can further increase the crushing effect of the agricultural products and improve the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The overall structure of the present invention is three-dimensional Figure 1 ; Figure 2 The overall structure of the present invention is three-dimensional Figure 2 ; Figure 3 It is a partial structural diagram of the present invention. Figure 1 ; Figure 4 It is a partial structural diagram of the present invention. Figure 2 ; Figure 5 It is a partial structural diagram of the present invention. Figure 3 one; Figure 6 For the present invention Figure 2 A partial enlarged schematic diagram of the middle A area; Figure 7 For the present invention Figure 3 A partial enlarged schematic diagram of the middle B area; Figure 8 For the present invention Figure 5 A partial enlarged schematic diagram of the middle C area; Fig. 9 For the present invention Figure 3 A partial enlarged schematic diagram of the D area in the middle; Numbers in the figure: 1, support base, 2, support bottom plate, 3, end cover, 4, rotating shell, 5, lifting shell, 6, crushing mechanism, 7, motor assembly, 8, annular outer plate, 11, top rod, 31, feeding port, 32, drag ring, 41, arc groove, 42, straight rod, 43, circular ring plate, 431, separation hole, 61, rotating shaft, 62, swing arm, 63, extension rod, 64, crushing blade, 65, convex block, 66, support arm, 651, annular groove, 67, Bracket, 671, ball head rod, 672, traction rope, 68, T-bar, 681, counterweight slider, 682, extrusion rod, 21, conical protective shell, 22, annular liquid separation plate, 23, through hole, 24, leakage hole, 71, motor frame, 72, drive motor, 73, drive gear, 611, outer sleeve, 612, crushing rod, 613, placement groove, 614, silicone sleeve, 51, round hole, 52, limit rod, 53, lifting handle, 241, liquid separation hose. DETAILED DESCRIPTION
[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0020] In addition, the terms used below are defined based on the functions of the present invention and may differ depending on the intention or custom of the user or operator. Therefore, these terms are defined based on the entire contents of this specification.
[0021] See also Figure 1-Figure 9 The agricultural product pesticide residue detection device of the present invention comprises a support base 1 and a support bottom plate 2, wherein the support base 1 and the support bottom plate 2 are both metal components, which are not easily deformed and have high stability; The support bottom plate 2 is fixedly installed just above the support base 1, a top rod 11 is mounted at the top of the support base 1, an end cover 3 is fixedly installed at the top of the top rod 11, a feeding port 31 is opened at the top of the end cover 3, a drag ring 32 is concentrically installed on the lower end surface of the end cover 3, a rotating shell 4 is rotatably installed at the bottom of the drag ring 32, an inner wall of the rotating shell 4 is symmetrically provided with arc grooves 41, and an outer wall of the rotating shell 4 is sleeved with a lifting shell 5, the support bottom plate 2, the end cover 3, the rotating shell 4 and the lifting shell 5 are combined to form a crushing chamber, and agricultural products can be put into the crushing chamber through the feeding port 31; A crushing mechanism 6 for crushing agricultural products is installed between the supporting bottom plate 2 and the end cover 3. The crushing mechanism 6 is driven by a motor assembly 7. The crushing mechanism 6 in operation can crush the agricultural products in the crushing chamber. The crushing mechanism 6 includes a rotating shaft 61 rotatably mounted at the center line of the supporting bottom plate 2 and the end cover 3, and the rotating shaft 61 penetrates the supporting bottom plate 2 and the end cover 3, and a bearing is installed at the connection between the rotating shaft 61, the supporting bottom plate 2 and the end cover 3, and the rotating shaft 61 can rotate between the supporting bottom plate 2 and the end cover 3; The motor assembly 7 includes a motor frame 71 fixedly mounted on the inner side of the support base 1, a driving motor 72 is mounted on one side of the top of the motor frame 71, a driving gear 73 is mounted on the output shaft end of the driving motor 72, one side of the driving gear 73 is meshed and connected with a driven gear 64, and the driven gear 64 is concentrically mounted on the bottom end surface of the rotating shaft 61. After the driving motor 72 is working, the driving gear 73 can be driven to rotate through the output shaft, and then the driven gear 64 can be driven to rotate through the driving gear 73. When the driven gear 64 rotates, the rotating shaft 61 can be driven to rotate between the supporting base plate 2 and the end cover 3; wherein in the actual working process, the driving gear 73 is larger than the driven gear 64, so as to ensure that the driven gear 64 has a high rotation speed; A conical protective shell 21 is sleeved near the bottom of the rotating shaft 61, and the bottom of the conical protective shell 21 is fixed to the upper end surface of the supporting bottom plate 2. An annular liquid separator plate 22 is fixedly installed on the outer wall of the conical protective shell 21. The cross section of the annular liquid separator plate 22 is L-shaped, and a through hole 23 is opened on the top of the annular liquid separator plate 22. A leakage hole 24 is opened in the inner part of the supporting bottom plate 2 and in the area between the annular liquid separator plate 22 and the conical protective shell 21. A straight rod 42 is installed at an equal angle on the bottom end surface of the rotating shell 4, and a circular plate 43 is connected to the bottom of the straight rod 42. The supporting bottom plate 2, the conical protective shell 21, the annular liquid separator plate 22 and the circular plate 43 are combined to form a liquid chamber for separating liquid generated during the crushing process of agricultural products. The inner ring of the annular plate 43 contacts the outer wall of the conical protective shell 21 but is not connected. A separation hole 431 is provided inside the annular plate 43, and the aperture of the separation hole 431 is equal to that of the through hole 23. In the initial state, the through hole 23 and the separation hole 431 are in a state of overlap, and the liquid can enter the liquid separation chamber from the through hole 23 and the separation hole 431. A swing arm 62 is installed at the lower position of the outer wall of the rotating shaft 61 through a pin shaft. The two swing arms 62 are distributed in a circumferential matrix with the center line of the rotating shaft 61 as the axis. The rotation angle of the two swing arms 62 is 180°. An extension rod 63 is fixedly installed at the lower end of the swing arm 62. A crushing blade 64 is installed at the end of the extension rod 63. In the non-working state, the swing arm 62 and the extension rod 63 are in a downward swing state, and the crushing blade 64 at the end of the extension rod 63 rests on the outer wall of the conical protective shell 21; A convex block 65 is sleeved on the outer wall of the rotating shaft 61 and located above the swing arm 62. An annular groove 651 is provided at the center of the large diameter outer ring of the convex block 65. A support arm 66 is symmetrically hinged on the small diameter outer ring of the convex block 65. The bottom of the support arm 66 is connected to the top of the swing arm 62 by a latch. A bracket 67 is fixedly installed at the lower end surface of the end cover 3. A plurality of brackets 67 are distributed at equal angles in the circumferential direction with the center line of the rotating shaft 61 as the axis. A ball head rod 671 is rotatably installed at the bottom of the bracket 67. One end of the ball head rod 671 is connected to the bottom of the end cover 3. The end is inserted into the annular groove 651, and a T-shaped rod 68 is symmetrically welded on the lower end surface of the end cover 3. The cross section of the T-shaped rod 68 is rectangular. A counterweight slider 681 is sleeved on the outer wall of the T-shaped rod 68. A traction rope 672 is embedded at the upper edge of the outer side of the counterweight slider 681. The traction rope 672 is a non-elastic rope. The free end of the traction rope 672 is fixedly installed on the other end of the ball head rod 671. An extrusion rod 682 is welded on the outer side of the counterweight slider 681, and the end of the extrusion rod 682 is inserted into the arc groove 41; The included angle between the two ends of the arc groove 41 vertically projected to the same horizontal plane should not be greater than the included angle between two adjacent separation holes 431. When the through hole 23 coincides with the separation hole 431, the extrusion rod 682 is located at the bottom of the arc groove 41, and the counterweight slider 681 is located at the bottom relative to the T-bar 68. like Figure 1-Figure 9As shown, the shaft 61 rotates under the drive of the motor assembly 7, and the rotation of the shaft 61 drives the two swing arms 62 to rotate. The extension rod 63 and the crushing blade 64 rotate together with the shaft 61. During the rotation process, the two swing arms 62 are deflected along the pin shaft by the centrifugal force. The deflection direction is referenced Figure 5 In the middle M rotation direction, (the horizontal height of the upper end of the swing arm 62 is reduced), the upper end of the swing arm 62 applies a pulling force to the support arm 66, and the support arm 66 pulls the convex block 65 down along the outer wall of the rotating shaft 61 under the use of the pulling force. During the sliding process of the convex block 65, one end of the ball head rod 671 in the annular groove 651 is driven to move downward together, so that one end of the ball head rod 671 located in the annular groove 651 is subjected to a vertical reverse extrusion force, and the extrusion force pushes the ball head rod 671 to deflect at the bottom of the bracket 67, then the other end of the ball head rod 671 The traction rope 672 is tilted upward and drives the counterweight slider 681 to slide upward along the T-shaped rod 68. During the sliding process of the counterweight slider 681, the squeezing rod 682 is driven to slide in the arc groove 41. The squeezing rod 682 squeezes the inner wall of the arc groove 41 and exerts a horizontal force. The force pushes the rotating shell 4 to rotate at the bottom of the drag ring 32. After the rotating shell 4 rotates, the straight rod 42 drives the circular plate 43 to rotate, so that the separation hole 431 opened on the circular plate 43 and the through hole 23 change from the initial overlap state to the misalignment state. As shown above, when it is necessary to crush the agricultural products, the motor assembly 7 only needs to be started to drive the separation hole 431 and the through hole 23 from the initial overlapping state to the misaligned state, and the agricultural products can be put into the crushing chamber from the feeding port 31 for crushing. At this time, the agricultural products are crushed in the crushing chamber, and the solid and liquid after crushing are fully mixed without solid-liquid separation. When the crushing is completed and the motor assembly 7 is shut down, the swing arm 62 is gradually reduced, and the counterweight slider 681 returns to the bottom of the T-bar 68 under the action of its own gravity. Its own gravity drives the extrusion rod 682 to re-extrude the rotating shell 4 back to the initial position, and the separation hole 431 overlaps with the through hole 23 again. The liquid generated after the product is crushed will flow into the liquid separation chamber from the separation hole 431 and the through hole 23, and overflow from the leakage hole 24 for collection. When the motor assembly 7 stops completely (that is, the output shaft of the driving motor 72 stops rotating and is in a stationary state), the operator can push the lifting shell 5 upward to open the bottom of the crushing chamber, so that the crushed solid agricultural products can be collected. This method can separate the solid and liquid of the agricultural products into a crushing mechanism, making the entire operation process more convenient, and the integrated method will not cause the loss and spillage of the agricultural product test objects after crushing, and at the same time can ensure that the solid part and the liquid part can be fully and evenly mixed after crushing, ensuring that the test results are more accurate; In actual users, the through hole 23, the separation hole 431 and the leakage hole 24 can be equipped with a permeable net to prevent some of the crushed small solid particles of agricultural products from clogging the through hole 23, the separation hole 431 and the leakage hole 24, and the deflection angle of the two swing arms 62 under the centrifugal effect is limited, that is, when the extrusion rod 682 slides from the bottom of the arc groove 41 to the top thereof, the two swing arms 62 reach the maximum deflection angle; In actual use, the operator can visually observe the rotation angle of the rotating shell 4 to determine whether the two swing arms 62 have reached the maximum deflection angle, that is, when the rotating shell 4 rotates and then enters a static state, the two swing arms 62 reach the maximum deflection angle.
[0022] The rotating shell 4 is a member made of hard plastic material. In this embodiment, polypropylene hard plastic material is selected to reduce the weight of the rotating shell 4 while ensuring its own strength. After reducing the weight of the rotating shell 4, the sliding process of the extrusion rod 682 at one end of the counterweight slider 681 along the inner wall of the arc groove 41 is smoother; At the same time, a metal gasket is embedded in the inner wall of the arc groove 41, that is, when the extrusion rod 682 slides along the arc groove 41, the extrusion rod 682 will directly act on the metal gasket to prevent the extrusion rod 682 from directly contacting the inner wall of the arc groove 41 made of hard plastic material, causing damage to its edge; For further information, see Figure 3 and Figure 4 The lower end surface of the end cover 3 is fixedly provided with an annular peripheral plate 8 at a concentric position. The bottom cross section of the annular peripheral plate 8 is arc-shaped, and the arc-shaped area of the annular peripheral plate 8 is cocentric with the pin shaft for installing the swing arm 62. The edge of the bottom end surface of the annular peripheral plate 8 is provided with an arc chamfer. The annular peripheral plate 8 is used to provide external support for the periphery of the crushing mechanism 6. When the agricultural products are put in, the agricultural products first fall to the outside of the annular peripheral plate 8 and then enter the crushing chamber. In the crushing process, the annular peripheral plate 8 isolates the agricultural product liquid splashed during the crushing process to prevent it from splashing onto the internal structure of the crushing mechanism 6. The liquid splashed onto the outer wall of the annular peripheral plate 8 can drip back into the crushing chamber along the outer wall.
[0023] In another embodiment, see Figure 3-Figure 8The outer wall of the extension rod 63 is rotatably sleeved with an outer sleeve 611 at a lower position, and the outer wall of the outer sleeve 611 is welded with crushing rods 612 at equal angles along the circumference of its outer wall. In the initial state, the angle between the extension rod 63 and the bottom end face of the annular outer plate 8 is smaller than the maximum deflection angle of the above-mentioned swing arm 62. When the crushing mechanism 6 enters the working state, the deflection of the swing arm 62 will drive the outer sleeve 611 to contact the bottom of the annular outer plate 8, and the outer sleeve 611 will make a circular motion along the bottom of the annular outer plate 8. At the same time, under the action of the friction between the two, the outer sleeve 611 will rotate on the outer wall of the extension rod 63, driving a plurality of crushing rods 612 to work. The rotating crushing rods 612 can further increase the crushing effect of the agricultural products.
[0024] For further information, see Figure 1-Figure 9 A placement groove 613 is provided on the outer wall of the outer sleeve 611 at the upper position, and the extension line of the arc-shaped area of the annular outer plate 8 is located in the placement groove 613. A silicone sleeve 614 is installed inside the placement groove 613. The silicone sleeve 614 has a certain buffering property. When the outer sleeve 611 deflects toward the bottom of the annular outer plate 8, the outer wall of the silicone sleeve 614 will directly contact the bottom of the annular outer plate 8. At the same time, the outer ring of the silicone sleeve 614 is provided with anti-slip grooves. After the silicone sleeve 614 contacts the bottom of the annular outer plate 8, the high friction provided by the silicone sleeve 614 can prevent the outer sleeve 611 from slipping relative to the bottom of the annular outer plate 8, thereby ensuring that the outer sleeve 611 can rotate relative to the extension rod 63.
[0025] Further, such as Figure 3 and Fig. 9 As shown, circular holes 51 are opened at equal angles along the circumferential direction at the bottom outer circle position of the lifting shell 5, a limit rod 52 is placed in the circular hole 51, and the bottom of the limit rod 52 is fixed to the upper end surface of the supporting base plate 2, and a lifting handle 53 is installed on the outer wall of the lifting shell 5. By holding the lifting handle 53, the lifting shell 5 can be quickly driven to rise. At this time, the circular hole 51 will slide along the outer wall of the limit rod 52 during the rising process, and the circumferential rotation of the lifting shell 5 will be locked.
[0026] Among them, a liquid separation hose 241 is fixedly installed at the lower end surface of the supporting bottom plate 2, and a plurality of liquid separation hoses 241 overlap with the leakage hole 24. The liquid separation hose 241 can be equipped with a valve. When the solid-liquid separation of agricultural products is performed, the flexibility of the liquid separation hose 241 provides convenience for collecting liquid, and it can be inserted into the collection bucket in any direction; See also Figure 4 and Figure 5A drainage groove is provided on the upper end surface of the supporting bottom plate 2 and in the area between the conical protective shell 21 and the annular liquid separation plate 22. Each of the drainage grooves is connected to two adjacent leakage holes 24. The liquid falling into the liquid separation chamber will enter the leakage hole 24 along the drainage groove, and then drip from the leakage hole 24 and leak out along the liquid separation hose 241 for collection. The drainage groove has a higher level in the middle section than the level at both ends (it can be understood that the level at the two ends connected to the leakage hole 24 is lower), and the cross-section of the drainage groove is an inverted eight-shaped shape, which can effectively avoid the presence of liquid residue in the liquid separation chamber.
[0027] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A device for detecting pesticide residues in agricultural products, comprising a supporting base (1) and a supporting bottom plate (2), characterized in that: The support base (1) and the support bottom plate (2) are both components made of a metal material. The support bottom plate (2) is fixedly mounted directly above the support base (1). A top rod (11) is mounted on the top of the support base (1). An end cover (3) is fixedly mounted on the top of the top rod (11). A feeding port (31) is provided on the top of the end cover (3). A drag ring (32) is concentrically mounted on the lower end surface of the end cover (3). A rotating shell (4) is rotatably mounted on the bottom of the drag ring (32). The inner wall of the rotating shell (4) is symmetrically provided with arc grooves (41). A lifting shell (5) is sleeved on the outer wall of the rotating shell (4). A crushing mechanism (6) for crushing agricultural products is mounted between the support bottom plate (2) and the end cover (3). The crushing mechanism (6) is driven to work by a motor assembly (7). The crushing mechanism (6) comprises a rotating shaft (61) rotatably mounted at the centerline position of the supporting base plate (2) and the end cover (3), and the rotating shaft (61) penetrates the supporting base plate (2) and the end cover (3). A swing arm (62) is mounted at a lower position of the outer wall of the rotating shaft (61) through a pin shaft. The two swing arms (62) are arranged in a circumferential matrix with the centerline of the rotating shaft (61) as the axis. The rotation angle of the two swing arms (62) is 180 degrees. An extension rod (63) is fixedly mounted at the lower end position of the swing arm (62). A crushing blade (64) is mounted at the end of the extension rod (63). A convex block (65) is sleeved on the outer wall of the rotating shaft (61) and located above the swing arm (62). An annular groove (651) is provided at the center position of the large-diameter outer ring of the convex block (65). A support arm (66) is symmetrically hinged to the small-diameter outer ring of the convex block (65). The bottom of the support arm (66) is connected to the swing arm (6 2) is connected by a latch, a bracket (67) is fixedly installed at the lower end surface of the end cover (3), a plurality of brackets (67) are circumferentially distributed at equal angles with the center line of the rotating shaft (61) as the axis, a ball head rod (671) is rotatably installed at the bottom of the bracket (67), one end of the ball head rod (671) is inserted into the annular groove (651), a T-shaped rod (68) is symmetrically welded to the lower end surface of the end cover (3), the cross section of the T-shaped rod (68) is rectangular, a counterweight slider (681) is sleeved on the outer wall of the T-shaped rod (68), a traction rope (672) is embedded at the upper edge of the outer side of the counterweight slider (681), the free end of the traction rope (672) is fixedly installed at the other end of the ball head rod (671), an extrusion rod (682) is welded to the outer side of the counterweight slider (681), and the end of the extrusion rod (682) is inserted into the arc groove (41); A conical protective shell (21) is sleeved near the bottom of the rotating shaft (61), and the bottom of the conical protective shell (21) is fixed to the upper end surface of the supporting bottom plate (2). An annular liquid separation plate (22) is fixedly mounted on the outer wall of the conical protective shell (21). The cross section of the annular liquid separation plate (22) is L-shaped. A through hole (23) is provided on the top of the annular liquid separation plate (22). A leakage hole (24) is provided in the interior of the supporting bottom plate (2) and in the area between the annular liquid separation plate (22) and the conical protective shell (21). Straight rods (42) are mounted at equal angles on the bottom end surface of the rotating shell (4). A circular plate (43) is connected to the bottom of the straight rods (42). The inner ring of the circular plate (43) contacts the outer wall of the conical protective shell (21) but is not connected thereto. A separation hole (431) is provided inside the circular plate (43), and the diameter of the separation hole (431) is the same as that of the through hole (23). The motor assembly (7) comprises a motor frame (71) fixedly mounted on the inner side of the support base (1); a driving motor (72) is mounted on one side of the top of the motor frame (71); a driving gear (73) is mounted on the output shaft end of the driving motor (72); one side of the driving gear (73) is meshedly connected to a driven gear (64); and the driven gear (64) is coaxially mounted on the bottom end surface of the rotating shaft (61).
2. The agricultural product pesticide residue detection device according to claim 1, characterized in that: An annular peripheral plate (8) is fixedly mounted concentrically on the lower end surface of the end cover (3); the bottom cross section of the annular peripheral plate (8) is arc-shaped, and the arc-shaped area of the annular peripheral plate (8) is cocentric with a pin shaft for mounting the swing arm (62); and an arc chamfer is provided at the edge of the bottom end surface of the annular peripheral plate (8).
3. The agricultural product pesticide residue detection device according to claim 2, characterized in that: The outer wall of the extension rod (63) is rotatably sleeved with an outer sleeve (611) at a lower position, and the outer wall of the outer sleeve (611) is welded with a crushing rod (612) at equal angles along the circumference of the outer wall at a lower position.
4. The agricultural product pesticide residue detection device according to claim 3, characterized in that: The outer wall of the outer sleeve (611) is provided with a placement groove (613) at an upper position, and the extension line of the arc-shaped area of the annular outer plate (8) is located in the placement groove (613). A silicone sleeve (614) is installed inside the placement groove (613), and the outer ring of the silicone sleeve (614) is provided with anti-slip grooves.
5. The agricultural product pesticide residue detection device according to claim 1, characterized in that: The bottom outer ring of the lifting shell (5) is provided with circular holes (51) at equal angles along the circumferential direction, a limiting rod (52) is placed in the circular hole (51), and the bottom of the limiting rod (52) is fixed to the upper end surface of the supporting bottom plate (2), and a lifting handle (53) is installed on the outer side wall of the lifting shell (5).
6. The agricultural product pesticide residue detection device according to claim 1, characterized in that: The rotating housing (4) is a component made of hard plastic material, and a metal gasket is embedded in the inner wall of the arc-shaped groove (41).
7. The agricultural product pesticide residue detection device according to claim 1, characterized in that: A liquid separation hose (241) is fixedly mounted on the lower end surface of the supporting bottom plate (2), and a plurality of liquid separation hoses (241) all overlap with the leakage holes (24).
8. The agricultural product pesticide residue detection device according to claim 1, characterized in that: A drainage groove is provided on the upper end surface of the supporting bottom plate (2) and in the area between the conical protective shell (21) and the annular liquid separation plate (22), and each of the drainage grooves is in communication with two adjacent leakage holes (24).