Agricultural product quality detection experiment table

Abstract

The invention relates to the technical field of agricultural product quality detection, in particular to an agricultural product quality detection experiment table which comprises a detection platform, a center positioning mechanism, a fruit type attaching mechanism, a measuring mechanism, an arrangement mechanism, a driving mechanism, a position keeping mechanism, a winding mechanism and a reading mechanism. The two flexible measuring rulers are arranged to measure the agricultural product at the same time, so that the outer walls of the two sides of the agricultural product are stressed, the agricultural product is prevented from being pushed during measurement, the measuring mode is equivalent to pulling the flexible measuring rulers and pushing the reading plate forwards, measurement can be completed only by pulling and pushing, and the device is very convenient, rapid and efficient; and the position keeping mechanism is matched with the fruit type clinging mechanism, so that the position measured by the flexible measuring scale every time is the center of the agricultural product, and the flexible measuring scale clings to the outer wall of the agricultural product, so that the measurement result is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural product quality detection, in particular to an agricultural product quality detection test bench. Background Art

[0002] A measuring device for agricultural product testing is a device specially designed to measure and analyze agricultural products. It can help farmers, wholesalers and retailers ensure that the products they sell meet safety and quality standards. In actual production, testing unripe fruits can provide information about their maturity and quality so that appropriate actions can be taken. Unripe fruits may look good, but they may not have reached the best edible quality. For example, they may not be large enough, not mature enough, or not fertile enough, making it difficult for them to provide the best taste and nutritional value. In order to determine whether the fruit is ripe and when it will mature, it is necessary to test the unripe fruit so that appropriate measures can be taken according to the actual situation, such as controlling the amount of fertilizer and watering.

[0003] The invention patent with publication number CN118010553A discloses a measuring device and method for agricultural product detection, including a fixed frame, a weighing component, an offset component, a positioning component, a support frame, a displacement component, a measuring component, a seam pressing component and a reading component. The weighing component is installed inside the fixed frame for carrying agricultural products and weighing the agricultural products. The offset component is installed inside the weighing component, the positioning component is installed inside the offset component, the support frame is slidably installed inside the fixed frame, the displacement component is installed inside the support frame, the measuring component is installed inside the displacement component, the seam pressing component is installed on the top of the measuring component, and the reading component is installed inside the measuring component for reading the measured value after measuring the agricultural products.

[0004] However, the above-mentioned measuring device and method for agricultural product inspection still have some shortcomings in actual use: 1. When measuring the size of agricultural products, a disc spring is provided to keep the tape extended from the tape measure body in a stretched state. As the movable cylinder moves, the tape measure is wound around the agricultural products. However, in this method, since the tape measure is in a stretched state during the measurement process, that is, no matter how the unwinding joint and the fixed joint move, the tape measure is always in a straight line, so that the agricultural products are always subjected to a unidirectional thrust from the contact surface of the tape measure. The agricultural products will be pushed by the tape measure to move closer to the fixed joint, causing the position of the agricultural products to change, affecting the measurement. measurement results; 2. Since the tape measure is flexible and the agricultural products tend to be arc-shaped and spherical, it cannot be guaranteed that the measuring position of the tape measure under the action of the disc spring during the measurement process must be the position where the middle diameter of the agricultural product is the largest. It may be a position above or below, which makes the measurement result smaller; 3. By placing the tape measure first and then pressing the tape measure, although the tape measure can fit the outer wall of the agricultural product more closely, the whole process is too assembly line-like, and one agricultural product has to be measured repeatedly for many times, which makes the measurement process very slow and inefficient. Therefore, an agricultural product quality inspection test bench is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose an agricultural product quality testing test bench.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An agricultural product quality testing laboratory bench comprises a testing platform, wherein a bottom outer wall of the testing platform is fixedly connected to a bracket 1, an inner wall of the bracket 1 is fixedly connected to an adjustment motor, an output shaft of the adjustment motor is fixedly connected to a weighing platform, the weighing platform is rotatably connected to the testing platform, and two symmetrically distributed brackets 2 are fixedly connected to the top outer wall of the testing platform, and further comprises:

[0008] A center positioning mechanism, used for locating the center of the agricultural product, wherein the center positioning mechanism is installed on the second bracket;

[0009] A fruit-shaped pressing mechanism, used to press against the outer wall of the agricultural product, the fruit-shaped pressing mechanism being mounted on the center positioning mechanism;

[0010] A measuring mechanism, used to measure the size of the agricultural product, the measuring mechanism being mounted on the fruit-shaping mechanism;

[0011] a tidying mechanism, used for tidying up the measuring mechanism after measurement and restoring it to its original state, the tidying mechanism being installed on the fruit shape sticking mechanism;

[0012] A driving mechanism, used for driving the arranging mechanism, wherein the driving mechanism is mounted on the fruit-shaped pressing mechanism;

[0013] A position holding mechanism, used to cooperate with the fruit-shaped contact mechanism to ensure that the measuring mechanism is always located at the center of the agricultural product, and the position holding mechanism is installed on the arranging mechanism;

[0014] A winding mechanism, used to cooperate with the measuring mechanism to detect agricultural products, and the winding mechanism is installed on the fruit shape sticking mechanism;

[0015] And a reading mechanism, which is used to cooperate with the winding mechanism to read the agricultural products, and the reading mechanism is installed on the winding mechanism.

[0016] In the above-mentioned agricultural product quality inspection test bench, the central positioning mechanism includes a positioning motor, a connecting plate 1, a threaded rod, a fixed plate 1, two sliding frames 1, two connecting blocks 1, two connecting plates 2 and four springs 1. The two connecting blocks 1 are respectively slidably connected to the two brackets 2, and a spring 1 is fixedly connected between the outer walls of both sides of the two connecting blocks 1 and the bracket 2. The two sliding frames 1 are respectively rotatably connected to the two connecting plates 2, and the two connecting plates 2 are respectively rotatably connected to the inner walls of the two brackets 2. One of the brackets 2 is fixedly connected to the connecting plate 1, and the outer wall of the connecting plate 1 is fixedly connected to the positioning motor, the output shaft of the positioning motor is fixedly connected to the threaded rod, the connecting plate 1 is threadedly connected to the threaded rod, and the threaded rod is rotatably connected to the inspection platform, and the outer walls of the two sliding frames 1 and the connecting plate 2 are slidably connected to the two ends of the fixed plate 1.

[0017] In the above-mentioned agricultural product quality inspection test bench, the fruit-shaped clamping mechanism includes a semi-arc cavity, an air bag, an air pump, a plurality of clamping rods, a plurality of first gears, a plurality of supporting plates and a plurality of second gears. The air pump is fixedly connected to the connecting block, the air pump is communicated with the air bag, and the air bag is inside the semi-arc cavity. The plurality of clamping rods are distributed in a circular array, and the plurality of clamping rods are fixedly connected to the air bag. The plurality of supporting plates are respectively slidably connected to the plurality of clamping rods, the plurality of first gears are respectively rotatably connected to the plurality of supporting plates, and the plurality of second gears are respectively fixedly connected to the plurality of first gears through the provided shaft rods. The outer walls on both sides of each clamping rod are slidably connected with a gear, and the plurality of gears are fixedly connected to the inner wall of the semi-arc cavity. Two fruit-shaped clamping mechanisms are provided, and the fruit-shaped clamping mechanisms are symmetrically distributed.

[0018] In the above-mentioned agricultural product quality inspection test bench, the measuring mechanism includes a fixed seat 1, a fixed plate 2, a connecting block 2, two tension springs 1 and two flexible measuring rulers. The outer walls of the fixed seat 1 are fixedly connected to the two semi-arc cavities, the fixed plate 2 is slidably connected to the inner wall of the fixed seat 1, the tension spring 1 is fixedly connected between the fixed plate 2 and the fixed seat 1, the connecting block 2 is fixedly connected to the fixed plate 2, and the two flexible measuring rulers are both fixedly connected to the connecting block 2.

[0019] In the above-mentioned agricultural product quality inspection test bench, the winding mechanism includes a reading plate, a third fixing frame, two tape measure motors and two reels. The outer walls of the reading plate are slidably connected to the semi-arc cavity, and the two flexible measuring scales are slidably connected to the inner wall of the reading plate. The third fixing frame is fixedly connected to the two semi-arc cavities, the two tape measure motors are respectively fixedly connected to the third fixing frame, and the two reels are respectively fixedly connected to the output shafts of the two tape measure motors.

[0020] In the above-mentioned agricultural product quality inspection test bench, the reading mechanism includes a fixed shaft, a push plate, a sliding rod four, a cam, two sliding rods three and two springs five. The two sliding rods three are both slidingly connected to the reading plate, the two sliding rods three are fixedly connected to the push plate, and the two springs five are fixedly connected between the reading plate and the push plate. The sliding rod four is fixedly connected to the push plate, the sliding rod four is slidingly connected to the cam, the cam is fixedly connected to the half-circle gear, the fixed shaft is fixedly connected to the fixed frame three, the fixed shaft one-way bearing is connected to the half-circle gear, and the two reels are respectively one-way bearing-connected to the one-way gear one and the one-way gear two, and the one-way gear one and the one-way gear two are both engaged with the outer wall of the half-circle gear.

[0021] In the above-mentioned agricultural product quality inspection test bench, the driving mechanism includes a semi-arc slide rail, a gear block group, a driving motor, a driving gear, a sliding shaft one and two limit plates. The semi-arc slide rail is fixedly connected to the semi-arc cavity, the gear block group is fixedly connected to the semi-arc slide rail, the sliding shaft one is slidingly connected to the semi-arc slide rail, and the two limit plates are fixedly connected to the outer wall of the sliding shaft one. The driving gear is rotationally connected to the sliding shaft one, the driving gear is engaged with the gear block group, and the output shaft of the driving motor is fixedly connected to the driving gear. Two driving mechanisms are provided, and the two driving mechanisms are symmetrically distributed.

[0022] In the above-mentioned agricultural product quality inspection test bench, the sorting mechanism includes a limiting slide rail, a second sliding shaft, an L-shaped fixed seat, an inclined slide groove, a second tension spring and an L-shaped sliding rod. The limiting slide rail is fixedly connected to the semi-arc cavity, the second sliding shaft is slidably connected to the limiting slide rail, the L-shaped fixed seat is slidably connected to the first sliding shaft, the L-shaped sliding rod is slidably connected to the L-shaped fixed seat, the second tension spring is fixedly connected between the L-shaped sliding rod and the L-shaped fixed seat, the inclined slide groove is opened on the outer wall of the L-shaped fixed seat, and two sorting mechanisms are provided, and the two sorting mechanisms are symmetrically distributed.

[0023] In the above-mentioned agricultural product quality inspection test bench, the position holding mechanism includes a limit baffle, a tension spring three, a positioning plate, a rack one, a belt, a rack three, a rack four, two fourth gears and two transmission shafts. The limit baffle is fixedly connected to the semi-arc slide rail, the positioning plate is slidably connected to the L-shaped slide bar, the rack one is fixedly connected to the positioning plate, the tension spring three is fixedly connected between the positioning plate and the L-shaped slide bar, the two fourth gears are rotatably connected to the inner wall of the L-shaped slide bar, and the two transmission shafts are fixedly connected to the fourth gear respectively. The belt is sleeved on the outer walls of the two transmission shafts, the rack one is engaged with the outer wall of one of the fourth gears, the rack three is engaged with the outer wall of the other fourth gear, and the rack four is fixedly connected to the bottom outer wall of the L-shaped slide bar. Two position holding mechanisms are provided, and the position holding mechanisms are symmetrically distributed.

[0024] Compared with existing technologies, the advantages of this agricultural product quality testing bench are:

[0025] 1. The positioning motor rotates through the threaded rod to drive the connecting plate 1, connecting plate 2 and fixed plate 1 to move. When the fixed plate 1 is in close contact with the agricultural product, the height positioning of the agricultural product is completed. The two springs 1 are compressed as the connecting plate 1 moves, so that the semi-arc-shaped cavity is always located at the center of the agricultural product, which is convenient for subsequent measurement.

[0026] 2. Set the reel connected to the one-way gear 2 to rotate clockwise to wind up the flexible measuring ruler, the one-way gear 2 can only rotate counterclockwise, and the reel connected to the one-way gear 1 rotates counterclockwise to wind up the flexible measuring ruler, the one-way gear 1 can only rotate clockwise, and the half-circle gear can only rotate counterclockwise. Therefore, when the reel starts to wind up, the one-way gear 2 and the reel are in a fixed state. One-way gear 2 rotates one circle to drive the half-circle gear to rotate 180 degrees, causing the cam to rotate 180 degrees. Then the half-circle gear is not engaged with the one-way gear 2 but engages with the one-way gear 1. However, since the one-way gear 1 can only rotate clockwise, the reel connected to the one-way gear 1 rotates clockwise when winding. At this time, the one-way gear 2 does not move, so the two reels can be continuously wound until the flexible measuring ruler is completely in contact with the agricultural product. The cam rotates 180 degrees to push the reading plate and the push plate towards the agricultural product. If the size of the agricultural product is large, it will squeeze the spring 5, but the side wall of the reading plate is always close to the outer wall of the agricultural product.

[0027] 3. The driving motor rotates to drive the driving gear, which drives the sliding shaft 1 to move along the semi-arc slide rail, and the sliding shaft 1 drives the L-shaped fixed seat to move, and the L-shaped fixed seat drives the sliding shaft 2 to move along the limit slide rail. The L-shaped slide bar will be resisted by the limit baffle and move downward, and inserted between the two flexible measuring rulers. When the L-shaped slide bar is in close contact with the L-shaped fixed seat, the rack 1 will be limited by the inclined slide groove and move, so as to drive the fourth gear to move. The fourth gear drives the transmission shaft to extend through the belt. When the sliding shaft 2 moves along the inclined surface of the L-shaped slide bar, the L-shaped fixed seat will move up along the sliding shaft 1. At this time, the driving motor supports the bottom end of the flexible measuring ruler.

[0028] 4. When the L-shaped slide moves to the contact rod, rack 4 will drive the first gear to rotate 180 degrees, causing the second lever to rotate upward. At this time, the outer wall of the flexible measuring ruler is blocked by the second lever and cannot move toward the center. When the L-shaped slide moves all the contact rods, all the flexible measuring rulers are retracted.

[0029] In summary, the present invention measures agricultural products at the same time by setting two flexible measuring rulers, so that the outer walls on both sides of the agricultural products are subjected to force, thereby preventing the agricultural products from being pushed during measurement. This measurement method is equivalent to pulling the flexible measuring ruler and pushing the reading plate forward. The measurement can be completed with just one pull and one push, which is very convenient and efficient. The position holding mechanism is combined with the fruit shape close contact mechanism to ensure that the position of the flexible measuring ruler for each measurement is the center of the agricultural product, and the flexible measuring ruler is close to the outer wall of the agricultural product, so the measurement result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the bottom of the detection platform of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure inside the semi-arc cavity of the present invention;

[0033] Figure 4 This invention Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0034] Figure 5 This invention Figure 3 A schematic diagram of the partially enlarged structure at point B in the middle;

[0035] Figure 6 This invention Figure 3 A schematic diagram of the partially enlarged structure at point C in the middle;

[0036] Figure 7 It is a partial structural diagram of the overall mechanism of the present invention;

[0037] Figure 8 This invention Figure 7 The schematic diagram of the partially enlarged structure at D in the middle;

[0038] Figure 9 This invention Figure 7 The schematic diagram of the local enlarged structure at E in the middle;

[0039] Figure 10 It is a partial structural diagram of the driving mechanism of the present invention;

[0040] Figure 11 It is a partial structural diagram of the measuring mechanism of the present invention;

[0041] Figure 12 It is a partial structural diagram of the winding mechanism and the reading mechanism of the present invention.

[0042] In the figure: 1. detection platform; 2. bracket 1; 3. threaded rod; 4. connecting plate 1; 5. positioning motor; 6. bracket 2; 7. sliding frame 1; 8. fixing plate 1; 9. weighing platform; 10. air pump; 11. connecting block 1; 12. adjusting motor; 13. fixing seat 1; 14. semi-arc cavity; 15. spring 1; 16. connecting plate 2; 17. inflatable bag; 18. stop rod 1; 19. flexible measuring ruler; 20. first gear; 21. second stop rod; 22. bearing plate 1; 23. sticking rod; 24. fixing plate 2; 25. tension spring 1; 26. L-shaped fixing seat; 27. fixed shaft; 28. limit baffle; 29. limit slide rail; 30. semi-arc slide rail; 31. tension spring 2; 32. tension spring 3; 33. rack 1; 34. fourth gear; 35. belt; 36. 6. Drive shaft; 37. Positioning plate; 38. L-shaped slide bar; 39. Rack four; 40. Rack three; 41. Inclined slide; 42. Limit plate; 43. Sliding shaft one; 44. Sliding shaft two; 45. Gear block group; 46. Driving motor; 47. Driving gear; 48. Connecting block two; 49. Reading plate; 50. Fixed frame three; 51. Slide bar three; 52. One-way gear one; 53. Tape measure motor; 54. Reel; 55. Cam; 56. Spring five; 57. Push plate; 58. Slide bar four; 59. Half-circle gear; 60. One-way gear two; 101. Center positioning mechanism; 202. Fruit shape sticking mechanism; 303. Arrangement mechanism; 404. Position holding mechanism; 505. Driving mechanism; 606. Measuring mechanism; 707. Winding mechanism; 808. Reading mechanism. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0045] Reference Figures 1-12 , an agricultural product quality testing bench, including a testing platform 1, the bottom outer wall of the testing platform 1 is fixedly connected to a bracket 2, the inner wall of the bracket 2 is fixedly connected to an adjusting motor 12, the output shaft of the adjusting motor 12 is fixedly connected to a weighing platform 9, the weighing platform 9 is rotatably connected to the testing platform 1, and the top outer wall of the testing platform 1 is fixedly connected to two symmetrically distributed brackets 6, further comprising: a center positioning mechanism 101 for locating the center of the agricultural product, the center positioning mechanism 101 being installed on the bracket 6; a fruit shape sticking mechanism 202 for sticking to the outer wall of the agricultural product, the fruit shape sticking mechanism 202 being installed on the center positioning mechanism 101; a measuring mechanism 606 for measuring the size of the agricultural product, the measuring mechanism 606 being installed on the fruit shape sticking mechanism 202; the whole The organizing mechanism 303 is used to organize the measuring mechanism 606 after measurement and restore it to its original state. The organizing mechanism 303 is installed on the fruit shape pressing mechanism 202; the driving mechanism 505 is used to drive the organizing mechanism 303. The driving mechanism 505 is installed on the fruit shape pressing mechanism 202; the position maintaining mechanism 404 is used to cooperate with the fruit shape pressing mechanism 202 so that the measuring mechanism 606 is always located at the center of the agricultural product. The position maintaining mechanism 404 is installed on the organizing mechanism 303; the winding mechanism 707 is used to cooperate with the measuring mechanism 606 to detect the agricultural products. The winding mechanism 707 is installed on the fruit shape pressing mechanism 202; and the reading mechanism 808 is used to cooperate with the winding mechanism 707 to read the agricultural products. The reading mechanism 808 is installed on the winding mechanism 707.

[0046] Among them, the center positioning mechanism 101 includes a positioning motor 5, a connecting plate 4, a threaded rod 3, a fixed plate 8, two sliding frames 7, two connecting blocks 11, two connecting plates 2 16 and four springs 15. The two connecting blocks 11 are respectively slidably connected to the two brackets 2 6, and a spring 15 is fixedly connected between the outer walls of both sides of the two connecting blocks 11 and the bracket 2 6. The two sliding frames 7 are respectively rotatably connected to the two connecting plates 2 16, and the two connecting plates 2 16 are respectively rotatably connected to the inner walls of the two brackets 2 6. One of the brackets 2 6 is fixedly connected to the connecting plate 4, and the outer wall of the connecting plate 4 is fixedly connected to the positioning motor 5. The output shaft of the positioning motor 5 is fixedly connected to the threaded rod 3, the connecting plate 4 is threadedly connected to the threaded rod 3, and the threaded rod 3 is rotatably connected to the detection platform 1. The outer walls of the two sliding frames 7 and the connecting plate 2 16 are both slidably connected to the two ends of the fixed plate 8.

[0047] In this embodiment, the fixed plate 8 is moved upward along the sliding frame 7 so that the fixed plate 8 is away from the detection platform 1, thereby placing the agricultural products on the weighing platform 9. The weighing platform 9 can perform numerical weighing on the agricultural products, and then the fixed plate 8 is slid onto the connecting plate 2 16. Then the two sliding frames 7 are rotated ninety degrees so that the fixed plate 8 does not slide. The positioning motor 5 rotates through the threaded rod 3 to drive the connecting plate 4, the connecting plate 2 16 and the fixed plate 8 to move. When the fixed plate 8 is in close contact with the agricultural products, the height positioning of the agricultural products is completed. The two springs 15 are compressed as the connecting plate 4 moves, so that the semi-arc cavity 14 is always located at the center of the agricultural products, which is convenient for subsequent measurements.

[0048] Among them, the fruit-shaped clamping mechanism 202 includes a semi-arc cavity 14, an air bag 17, an air pump 10, a plurality of clamping rods 23, a plurality of first gears 20, a plurality of supporting plates 22 and a plurality of second gears 21. The air pump 10 is fixedly connected to the connecting block 11, and the air pump 10 is communicated with the air bag 17. The air bag 17 is inside the semi-arc cavity 14. The plurality of clamping rods 23 are distributed in a circular array. The plurality of clamping rods 23 are fixedly connected to the air bag 17. The plurality of supporting plates 22 are respectively slidably connected to the plurality of clamping rods 23. The plurality of first gears 20 are respectively rotatably connected to the plurality of supporting plates 22. The plurality of second gears 21 are respectively fixedly connected to the plurality of first gears 20 through the provided shaft rods. The outer walls of both sides of each clamping rod 23 are slidably connected with a gear 18. The plurality of gears 18 are fixedly connected to the inner wall of the semi-arc cavity 14. Two fruit-shaped clamping mechanisms 202 are provided, and the fruit-shaped clamping mechanisms 202 are symmetrically distributed.

[0049] In this embodiment, the measuring process is then started, and the air pump 10 begins to inflate the air bag 17. The supporting plate 22 and the inner wall of the clamping rod 23 are fixedly connected with a return spring (not shown in the figure). Since the clamping rod 23 is extended and pressed against the outer wall of the agricultural product, the blocking rod 18 is stationary, so the supporting plate 22 is retracted into the clamping rod 23 by the tension of the return spring. Since the flexible measuring ruler 19 is supported by the supporting plate 22, the flexible measuring ruler 19 is pushed toward the agricultural product by the clamping rod 23 and is also pressed against the outer wall of the agricultural product. The starting scale of the connection between the two flexible measuring rulers 19 and the connecting block 2 48 is set to zero.

[0050] The measuring mechanism 606 includes a fixing seat 13, a fixing plate 24, a connecting block 248, two tension springs 25 and two flexible measuring rulers 19. The outer walls of the fixing seat 13 are fixedly connected to the two semi-arc cavities 14, the fixing plate 24 is slidably connected to the inner wall of the fixing seat 13, the tension spring 25 is fixedly connected between the fixing plate 24 and the fixing seat 13, the connecting block 248 is fixedly connected to the fixing plate 24, and the two flexible measuring rulers 19 are both connected to the connecting block 248. Fixedly connected, the winding mechanism 707 includes a reading plate 49, a fixing frame three 50, two tape measure motors 53 and two reels 54. The outer walls of the reading plate 49 are slidingly connected to the semi-arc cavity 14, and the two flexible measuring rulers 19 are slidingly connected to the inner wall of the reading plate 49. The fixing frame three 50 is fixedly connected to the two semi-arc cavities 14, the two tape measure motors 53 are respectively fixedly connected to the fixing frame three 50, and the two reels 54 are respectively fixedly connected to the output shafts of the two tape measure motors 53.

[0051] In this embodiment, the two tape measure motors 53 then start to rotate, and the flexible measuring ruler 19 is wound up, so that the excess length of the flexible measuring ruler 19 is wound up on the outer wall of the reel 54. At this time, the outer walls on both sides of the agricultural product are subjected to force, which prevents the agricultural product from being pushed during measurement. At the same time, the fixed plate 8 not only locates the center of the agricultural product, but also fixes the agricultural product. This measurement method is equivalent to pulling the flexible measuring ruler 19 and pushing the reading plate 49 forward. The measurement can be completed with just a pull and a push, which is very convenient and efficient, and ensures that the position measured by the flexible measuring ruler 19 is the center of the agricultural product.

[0052] Among them, the reading mechanism 808 includes a fixed shaft 27, a push plate 57, a slide rod four 58, a cam 55, two slide rods three 51 and two springs five 56. The two slide rods three 51 are both slidingly connected to the reading plate 49, the two slide rods three 51 are both fixedly connected to the push plate 57, the two springs five 56 are both fixedly connected between the reading plate 49 and the push plate 57, the slide rod four 58 is fixedly connected to the push plate 57, the slide rod four 58 is slidingly connected to the cam 55, the cam 55 is fixedly connected to the half-circle gear 59, the fixed shaft 27 is fixedly connected to the fixed frame three 50, the fixed shaft 27 is one-way bearing connected to the half-circle gear 59, the two reels 54 are respectively one-way bearing connected to the one-way gear one 52 and the one-way gear two 60, the one-way gear one 52 and the one-way gear two 60 are both engaged with the outer wall of the half-circle gear 59.

[0053] In this embodiment, if Figure 12 In the direction shown, the reel 54 connected to the one-way gear 2 60 is set to rotate clockwise to wind up the flexible measuring ruler 19, and the one-way gear 2 60 can only rotate counterclockwise. The reel 54 connected to the one-way gear 1 52 rotates counterclockwise to wind up the flexible measuring ruler 19, the one-way gear 1 52 can only rotate clockwise, and the half-circle gear 59 can only rotate counterclockwise. Therefore, when the reel 54 starts to wind up, the one-way gear 2 60 and the reel 54 are in a fixed state. The one-way gear 2 60 rotates one circle to drive the half-circle gear 59 to rotate 180 degrees, so that the cam 55 rotates 180 degrees. Then the half-circle gear 59 does not mesh with the one-way gear 2 60 but meshes with the one-way gear 1 52. However, since the one-way gear 1 52 can only rotate clockwise, When the reel 54 connected to the one-way gear 1 52 is wound, the one-way gear 1 52 rotates clockwise. At this time, the one-way gear 2 60 does not move, so the two reels 54 can be continuously wound until the flexible measuring scale 19 is completely in contact with the agricultural product. The cam 55 rotates 180 degrees to push the reading plate 49 and the push plate 57 toward the agricultural product. If the agricultural product is larger, the spring 56 will be squeezed, but the side wall of the reading plate 49 is always close to the outer wall of the agricultural product. The sum of the scales of the two flexible measuring scales 19 and the end of the reading plate 49 is the size of the agricultural product. After the measurement is completed, the two tape measure motors 53 start to reverse. At this time, the one-way gear 1 52 drives the half-circle gear 59 to rotate 180 degrees so that the reading plate 49 retracts and no longer fits the agricultural product.

[0054] Among them, the driving mechanism 505 includes a semi-arc slide rail 30, a gear block group 45, a driving motor 46, a driving gear 47, a sliding shaft 43 and two limit plates 42. The semi-arc slide rail 30 is fixedly connected to the semi-arc cavity 14, the gear block group 45 is fixedly connected to the semi-arc slide rail 30, the sliding shaft 43 is slidingly connected to the semi-arc slide rail 30, the two limit plates 42 are fixedly connected to the outer wall of the sliding shaft 43, the driving gear 47 is rotationally connected to the sliding shaft 43, the driving gear 47 is engaged with the gear block group 45, and the output shaft of the driving motor 46 is fixedly connected to the driving gear 47. There are two driving mechanisms 505, and the two driving mechanisms 505 are symmetrically distributed.

[0055] In this embodiment, since the flexible measuring ruler 19 is flexible, in order to ensure that the flexible measuring ruler 19 can be transported back along the reading plate 49, and also to ensure that the two flexible measuring rulers 19 are still separated when measured next time, the flexible measuring ruler 19 is no longer subjected to the tension of the reel 54, so the fixed plate 24 is reset by the tension of the tension spring 1 25, and the air pump 10 deflates the air to reset the clamping rod 23. Since the height and position of the connecting block 2 48 are fixed at this time, and since the agricultural products are located between the two flexible measuring rulers 19, the connection between the two flexible measuring rulers 19 and the connecting block 2 48 must be open. At this time, the drive motor 46 rotates to drive the drive gear 47 to rotate, and the drive gear 47 drives the sliding shaft 1 43 to move along the semi-arc slide rail 30.

[0056] Among them, the sorting mechanism 303 includes a limiting slide rail 29, a second sliding shaft 44, an L-shaped fixed seat 26, an inclined slide groove 41, a second tension spring 31 and an L-shaped slide rod 38. The limiting slide rail 29 is fixedly connected to the semi-arc cavity 14, the second sliding shaft 44 is slidably connected to the limiting slide rail 29, the L-shaped fixed seat 26 is slidably connected to the first sliding shaft 43, the L-shaped slide rod 38 is slidably connected to the L-shaped fixed seat 26, the second tension spring 31 is fixedly connected between the L-shaped slide rod 38 and the L-shaped fixed seat 26, the inclined slide groove 41 is opened on the outer wall of the L-shaped fixed seat 26, and two sorting mechanisms 303 are provided, and the two sorting mechanisms 303 are symmetrically distributed.

[0057] In this embodiment, the sliding shaft 1 43 drives the L-shaped fixed seat 26 to move, and the L-shaped fixed seat 26 drives the sliding shaft 2 44 to move along the limiting slide rail 29. The L-shaped slide bar 38 will be subject to the resistance of the limiting baffle 28 and move downward, and inserted between the two flexible measuring rulers 19. When the L-shaped slide bar 38 is in close contact with the L-shaped fixed seat 26, the rack 1 33 will be limited by the inclined slide groove 41 and move, thereby driving the fourth gear 34 to move. The fourth gear 34 drives the transmission shaft 36 to extend through the belt 35. When the sliding shaft 2 44 moves along the inclined surface of the L-shaped slide bar 38, the L-shaped fixed seat 26 will move up along the sliding shaft 1 43. At this time, the drive motor 46 supports the bottom end of the flexible measuring ruler 19.

[0058] Among them, the position holding mechanism 404 includes a limit baffle 28, a tension spring three 32, a positioning plate 37, a rack one 33, a belt 35, a rack three 40, a rack four 39, two fourth gears 34 and two transmission shafts 36. The limit baffle 28 is fixedly connected to the semi-arc slide rail 30, the positioning plate 37 is slidingly connected to the L-shaped slide bar 38, the rack one 33 is fixedly connected to the positioning plate 37, the tension spring three 32 is fixedly connected between the positioning plate 37 and the L-shaped slide bar 38, the two fourth gears 34 are rotatably connected to the inner wall of the L-shaped slide bar 38, the two transmission shafts 36 are respectively fixedly connected to the fourth gear 34, the belt 35 is sleeved on the outer walls of the two transmission shafts 36, the rack one 33 is meshed with the outer wall of one of the fourth gears 34, the rack three 40 is meshed with the outer wall of the other fourth gear 34, and the rack four 39 is fixedly connected to the bottom outer wall of the L-shaped slide bar 38. Two position holding mechanisms 404 are provided, and the position holding mechanisms 404 are symmetrically distributed.

[0059] In this embodiment, when the L-shaped slide bar 38 moves to the contact rod 23, the rack four 39 will drive the first gear 20 to rotate one hundred and eighty degrees, so that the second gear bar 21 rotates to the top. At this time, the outer wall of the flexible measuring ruler 19 is blocked by the second gear bar 21 and cannot move to the middle. When the L-shaped slide bar 38 moves all the contact rods 23, all the flexible measuring rulers 19 have been retracted. Then the driving motor 46 is reversed to drive the L-shaped slide bar 38 to move back. The rack four 39 drives the first gear 20 to reverse and reset the second gear bar 21, and the next measurement can be carried out. During the movement of the L-shaped slide bar 38, the adjustment motor 12 can drive the weighing platform 9 to rotate a certain angle, which is convenient for multiple measurements.

[0060] The specific working principle and usage method of the present invention are explained in detail below: when in use, the fixed plate 8 is moved upward along the sliding frame 7 so that the fixed plate 8 is away from the detection platform 1, thereby placing the agricultural products on the weighing platform 9, and the weighing platform 9 can perform numerical weighing on the agricultural products, and then the fixed plate 8 is slid onto the connecting plate 2 16, and then the two sliding frames 7 are rotated ninety degrees so that the fixed plate 8 does not slide, and the positioning motor 5 rotates through the threaded rod 3 to drive the connecting plate 4, the connecting plate 2 16 and the fixed plate 8 to move. When the fixed plate 8 is in close contact with the agricultural products, the height positioning of the agricultural products is completed, and the two springs 15 are compressed as the connecting plate 4 moves, so that the semi-arc cavity 14 is always located at the center of the agricultural products, which is convenient for subsequent measurement.

[0061] Then the measuring process begins, and the air pump 10 begins to inflate the air bag 17. The supporting plate 22 and the inner wall of the pressing rod 23 are fixedly connected with a return spring (not shown in the figure). Since the pressing rod 23 is extended and pressed against the outer wall of the agricultural product, the blocking rod 18 is stationary, so the supporting plate 22 is retracted into the pressing rod 23 by the tension of the return spring. Since the flexible measuring ruler 19 is supported by the supporting plate 22, the flexible measuring ruler 19 is pushed toward the agricultural product by the pressing rod 23 and is also pressed against the outer wall of the agricultural product. The starting scale of the connection between the two flexible measuring rulers 19 and the connecting block 2 48 is set to zero.

[0062] Then the two tape measure motors 53 start to rotate, and the flexible measuring ruler 19 is wound up, so that the excess length of the flexible measuring ruler 19 is wound up on the outer wall of the reel 54. At this time, the outer walls on both sides of the agricultural product are subjected to force, which prevents the agricultural product from being pushed during measurement. At the same time, the fixed plate 8 not only locates the center of the agricultural product, but also fixes the agricultural product. This measurement method is equivalent to pulling the flexible measuring ruler 19 and pushing the reading plate 49 forward. The measurement can be completed with just a pull and a push, which is very convenient and efficient, and ensures that the position measured by the flexible measuring ruler 19 is the center of the agricultural product.

[0063] like Figure 12 In the direction shown, the reel 54 connected to the one-way gear 2 60 is set to rotate clockwise to wind up the flexible measuring ruler 19, and the one-way gear 2 60 can only rotate counterclockwise. The reel 54 connected to the one-way gear 1 52 rotates counterclockwise to wind up the flexible measuring ruler 19, the one-way gear 1 52 can only rotate clockwise, and the half-circle gear 59 can only rotate counterclockwise. Therefore, when the reel 54 starts to wind up, the one-way gear 2 60 and the reel 54 are in a fixed state. The one-way gear 2 60 rotates one circle to drive the half-circle gear 59 to rotate 180 degrees, so that the cam 55 rotates 180 degrees, and then the half-circle gear 59 is no longer engaged with the one-way gear 2 60. It is engaged with the one-way gear 1 52, but since the one-way gear 1 52 can only rotate clockwise, the reel 54 connected to the one-way gear 1 52 rotates clockwise when reeling. At this time, the one-way gear 2 60 does not move, so the two reels 54 can be continuously reeled until the flexible measuring scale 19 is completely in contact with the agricultural product. The cam 55 rotates 180 degrees to push the reading plate 49 and the push plate 57 toward the agricultural product. If the size of the agricultural product is larger, it will squeeze the spring 56, but the side wall of the reading plate 49 is always close to the outer wall of the agricultural product. The sum of the scales of the two flexible measuring scales 19 and the end of the reading plate 49 is the size of the agricultural product.

[0064] After the measurement is completed, the two tape measure motors 53 start to reverse. At this time, the one-way gear 1 52 drives the half-circle gear 59 to rotate 180 degrees, so that the reading plate 49 retracts and is no longer close to the agricultural product. Since the flexible measuring ruler 19 is flexible, in order to ensure that the flexible measuring ruler 19 can be transported back along the reading plate 49, and also to ensure that the two flexible measuring rulers 19 are still separated when measured next time, the flexible measuring ruler 19 is no longer subjected to the tension of the reel 54. Therefore, the fixed plate 24 is reset by the tension of the tension spring 1 25, and the air pump 10 deflates the air to reset the sticking rod 23. Since the height and position of the connecting block 2 48 are fixed at this time, and since the agricultural product is located between the two flexible measuring rulers 19, the connection between the two flexible measuring rulers 19 and the connecting block 2 48 must be open. At this time, the driving motor 46 rotates The driving gear 47 is driven to rotate, and the driving gear 47 drives the sliding shaft 1 43 to move along the semi-arc slide rail 30, and the sliding shaft 1 43 drives the L-shaped fixed seat 26 to move, and the L-shaped fixed seat 26 drives the sliding shaft 2 44 to move along the limit slide rail 29. The L-shaped slide bar 38 will be subject to the resistance of the limit baffle 28 and move downward, and be inserted between the two flexible measuring rulers 19. When the L-shaped slide bar 38 is in close contact with the L-shaped fixed seat 26, the rack 1 33 will be limited by the inclined slide groove 41 and move, thereby driving the fourth gear 34 to move. The fourth gear 34 drives the transmission shaft 36 to extend through the belt 35. When the sliding shaft 2 44 moves along the inclined surface of the L-shaped slide bar 38, the L-shaped fixed seat 26 will move up along the sliding shaft 1 43. At this time, the drive motor 46 supports the bottom end of the flexible measuring ruler 19.

[0065] When the L-shaped slide bar 38 moves to the contact rod 23, the rack four 39 will drive the first gear 20 to rotate one hundred and eighty degrees, so that the second gear rod 21 will rotate upwards. At this time, the outer wall of the flexible measuring ruler 19 is blocked by the second gear rod 21 and cannot move to the middle. When the L-shaped slide bar 38 has moved all the contact rods 23, all the flexible measuring rulers 19 have been retracted. Then the driving motor 46 is reversed to drive the L-shaped slide bar 38 to move back. The rack four 39 drives the first gear 20 to reverse and reset the second gear rod 21, and the next measurement can be carried out. During the movement of the L-shaped slide bar 38, the adjustment motor 12 can drive the weighing platform 9 to rotate a certain angle, which is convenient for multiple measurements.

[0066] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0067] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An agricultural product quality testing laboratory bench, comprising a testing platform (1), wherein the bottom outer wall of the testing platform (1) is fixedly connected to a bracket 1 (2), the inner wall of the bracket 1 (2) is fixedly connected to an adjusting motor (12), the output shaft of the adjusting motor (12) is fixedly connected to a weighing platform (9), the weighing platform (9) is rotatably connected to the testing platform (1), and the top outer wall of the testing platform (1) is fixedly connected to two symmetrically distributed brackets 2 (6), characterized in that: Also includes: A center positioning mechanism (101) for positioning the center of the agricultural product, wherein the center positioning mechanism (101) is mounted on the second bracket (6); A fruit-shaped sticking mechanism (202) is used to stick closely to the outer wall of the agricultural product, and the fruit-shaped sticking mechanism (202) is installed on the center positioning mechanism (101); A measuring mechanism (606) for measuring the size of agricultural products, wherein the measuring mechanism (606) is mounted on the fruit shape sticking mechanism (202); a tidying mechanism (303) for tidying the measuring mechanism (606) after measurement and restoring it to its original state, wherein the tidying mechanism (303) is mounted on the fruit shape sticking mechanism (202); A driving mechanism (505) for driving the arranging mechanism (303), wherein the driving mechanism (505) is mounted on the fruit-shaped pressing mechanism (202); A position holding mechanism (404) is used to cooperate with the fruit-shaped pressing mechanism (202) so that the measuring mechanism (606) is always located at the center of the agricultural product, and the position holding mechanism (404) is installed on the arranging mechanism (303); A winding mechanism (707) is used to cooperate with the measuring mechanism (606) to detect agricultural products, and the winding mechanism (707) is installed on the fruit shape sticking mechanism (202); and a reading mechanism (808) for cooperating with the winding mechanism (707) to read the agricultural products, wherein the reading mechanism (808) is installed on the winding mechanism (707).

2. The agricultural product quality testing test bench according to claim 1, characterized in that: The center positioning mechanism (101) includes a positioning motor (5), a connecting plate (4), a threaded rod (3), a fixed plate (8), two sliding frames (7), two connecting blocks (11), two connecting plates (16) and four springs (15). The two connecting blocks (11) are respectively connected to the two brackets (6) in a sliding manner. The outer walls of the two connecting blocks (11) and the brackets (6) are fixedly connected with springs (15). The two sliding frames (7) are respectively connected to the two connecting plates (16) in a rotatable manner. The connecting plate 2 (16) is rotatably connected to the inner walls of the two brackets 2 (6), one of the brackets 2 (6) is fixedly connected to the connecting plate 1 (4), the outer wall of the connecting plate 1 (4) is fixedly connected to the positioning motor (5), the output shaft of the positioning motor (5) is fixedly connected to the threaded rod (3), the connecting plate 1 (4) is threadedly connected to the threaded rod (3), the threaded rod (3) is rotatably connected to the detection platform (1), and the outer walls of the two sliding frames 1 (7) and the connecting plate 2 (16) are slidably connected to the two ends of the fixed plate 1 (8).

3. The agricultural product quality testing test bench according to claim 2, characterized in that: The fruit-shaped sticking mechanism (202) comprises a semi-arc cavity (14), an air bag (17), an air pump (10), a plurality of sticking rods (23), a plurality of first gears (20), a plurality of bearing plates (22) and a plurality of second gears (21). The air pump (10) is fixedly connected to the connecting block (11). The air pump (10) is connected to the air bag (17). The air bag (17) is inside the semi-arc cavity (14). The plurality of sticking rods (23) are distributed in a circular array. The plurality of sticking rods (23) are all fixedly connected to the air bag (17). , a plurality of supporting plates (22) are respectively slidably connected to a plurality of clamping rods (23), a plurality of first gears (20) are respectively rotatably connected to a plurality of supporting plates (22), a plurality of second blocking rods (21) are respectively fixedly connected to a plurality of first gears (20) through a set shaft, and the outer walls of both sides of each clamping rod (23) are slidably connected to a blocking rod (18), and a plurality of said blocking rods (18) are fixedly connected to the inner wall of the semi-arc cavity (14), and two said fruit-shaped clamping mechanisms (202) are provided, and said fruit-shaped clamping mechanisms (202) are symmetrically distributed.

4. The agricultural product quality testing test bench according to claim 3, characterized in that: The measuring mechanism (606) includes a fixing seat (13), a fixing plate (24), a connecting block (48), two tension springs (25) and two flexible measuring rulers (19). The outer walls of the fixing seat (13) on both sides are fixedly connected to the two semi-arc cavities (14). The fixing plate (24) is slidably connected to the inner wall of the fixing seat (13). The tension spring (25) is fixedly connected between the fixing plate (24) and the fixing seat (13). The connecting block (48) is fixedly connected to the fixing plate (24). The two flexible measuring rulers (19) are both fixedly connected to the connecting block (48).

5. The agricultural product quality testing test bench according to claim 4, characterized in that: The winding mechanism (707) includes a reading plate (49), a fixing frame three (50), two tape measure motors (53) and two reels (54), the outer walls of the reading plate (49) are slidably connected to the semi-arc cavity (14), the two flexible measuring rulers (19) are slidably connected to the inner wall of the reading plate (49), the fixing frame three (50) is fixedly connected to the two semi-arc cavities (14), the two tape measure motors (53) are respectively fixedly connected to the fixing frame three (50), and the two reels (54) are respectively fixedly connected to the output shafts of the two tape measure motors (53).

6. The agricultural product quality testing test bench according to claim 5, characterized in that: The reading mechanism (808) includes a fixed shaft (27), a push plate (57), a slide bar four (58), a cam (55), two slide bars three (51) and two springs five (56). The two slide bars three (51) are both slidably connected to the reading plate (49), the two slide bars three (51) are both fixedly connected to the push plate (57), the two springs five (56) are both fixedly connected between the reading plate (49) and the push plate (57), the slide bar four (58) is fixedly connected to the push plate (57), the slide bar Rod four (58) is slidably connected to the cam (55), the cam (55) is fixedly connected to the half-circle gear (59), the fixed shaft (27) is fixedly connected to the fixed frame three (50), the fixed shaft (27) is connected to the half-circle gear (59) through a one-way bearing, and the two reels (54) are respectively connected to the one-way gear one (52) and the one-way gear two (60) through a one-way bearing, and the one-way gear one (52) and the one-way gear two (60) are both engaged with the outer wall of the half-circle gear (59).

7. The agricultural product quality testing test bench according to claim 6, characterized in that: The driving mechanism (505) includes a semi-arc slide rail (30), a tooth block group (45), a driving motor (46), a driving gear (47), a sliding shaft (43) and two limiting plates (42); the semi-arc slide rail (30) is fixedly connected to the semi-arc cavity (14); the tooth block group (45) is fixedly connected to the semi-arc slide rail (30); the sliding shaft (43) is slidingly connected to the semi-arc slide rail (30); the two limiting plates (42) are fixedly connected to the outer wall of the sliding shaft (43); the driving gear (47) is rotatably connected to the sliding shaft (43); the driving gear (47) is meshed with the tooth block group (45); the output shaft of the driving motor (46) is fixedly connected to the driving gear (47); two driving mechanisms (505) are provided, and the two driving mechanisms (505) are symmetrically distributed.

8. The agricultural product quality testing test bench according to claim 7, characterized in that: The arranging mechanism (303) includes a limiting slide rail (29), a second sliding shaft (44), an L-shaped fixed seat (26), an inclined slide groove (41), a second tension spring (31) and an L-shaped slide rod (38). The limiting slide rail (29) is fixedly connected to the semi-arc cavity (14). The second sliding shaft (44) is slidably connected to the limiting slide rail (29). The L-shaped fixed seat (26) is slidably connected to the first sliding shaft (43). The L-shaped slide rod (38) is slidably connected to the L-shaped fixed seat (26). The second tension spring (31) is fixedly connected between the L-shaped slide rod (38) and the L-shaped fixed seat (26). The inclined slide groove (41) is opened on the outer wall of the L-shaped fixed seat (26). Two arranging mechanisms (303) are provided, and the two arranging mechanisms (303) are symmetrically distributed.

9. The agricultural product quality testing test bench according to claim 8, characterized in that: The position holding mechanism (404) includes a limit baffle (28), a tension spring three (32), a positioning plate (37), a rack one (33), a belt (35), a rack three (40), a rack four (39), two fourth gears (34) and two transmission shafts (36), wherein the limit baffle (28) is fixedly connected to the semi-arc slide rail (30), the positioning plate (37) is slidably connected to the L-shaped slide bar (38), the rack one (33) is fixedly connected to the positioning plate (37), the tension spring three (32) is fixedly connected between the positioning plate (37) and the L-shaped slide bar (38), and the two The fourth gear (34) is rotatably connected to the inner wall of the L-shaped slide bar (38), the two transmission shafts (36) are fixedly connected to the fourth gear (34), the belt (35) is sleeved on the outer wall of the two transmission shafts (36), the rack one (33) is engaged with the outer wall of one of the fourth gears (34), the rack three (40) is engaged with the outer wall of the other fourth gear (34), the rack four (39) is fixedly connected to the bottom outer wall of the L-shaped slide bar (38), and two position holding mechanisms (404) are provided, and the position holding mechanisms (404) are symmetrically distributed.

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