Accurate sampling device based on fruit core line function partition
By designing a precise sampling device with functional zoning along the core line, the problem of undivided apple fruit sampling was solved, enabling independent sampling of the core area and the flesh area, thus improving the accuracy and consistency of quality assessment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG AGRICULTURAL UNIVERSITY
- Filing Date
- 2025-07-07
- Publication Date
- 2026-05-12
AI Technical Summary
Current techniques for sampling apple fruits do not break down their internal structure, resulting in insufficient accuracy and consistency in quality assessment.
Design a precision sampling device based on the functional zoning of the fruit core line. The device uses a driving mechanism of clamping plates and pressure plates to achieve zonal clamping and sampling of the fruit, and inserts the sample into the core area and the pulp area respectively.
This improves the accuracy and consistency of fruit analysis and evaluation, ensuring independent collection and analysis of samples from the pit and pulp areas.
Smart Images
Figure CN224231315U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of apple fruit sampling technology, specifically to a precise sampling device based on the functional zoning of the fruit core line. Background Technology
[0002] As one of the most widely grown and consumed fruits globally, the quality of apples directly impacts their market value and consumer acceptance. Fruit quality is typically assessed using indicators such as soluble solids, soluble sugars, and titratable acidity. Apples generally range in diameter from 60mm to 90mm. When dividing an apple into functional zones, a circle with a radius of 10-15mm around its center is usually used as the core line. The area inside this core line is the pit zone, and the area outside is the flesh zone.
[0003] In current scientific research and industrial practice, apple fruit sampling does not differentiate between internal structures or perform sectional sampling; instead, a mixed sample of the entire fruit is taken for analysis. This method ignores the differences in metabolic activity and substance accumulation between the core and pulp regions of the fruit, which may affect the accuracy and consistency of quality assessment. Utility Model Content
[0004] This invention addresses the shortcomings of existing technologies by providing a precise sampling device based on the functional zoning of the fruit core line, which can sample different functional areas of the fruit, making sampling more convenient.
[0005] This utility model is achieved through the following technical solution: a precise sampling device based on the functional zoning of the fruit core line, comprising a base plate, two opposing clamping plates slidably disposed on the top surface of the base plate, forming a fruit clamping area between the two clamping plates, and a first driving mechanism on the base plate for driving the two clamping plates to slide relative to each other in the horizontal direction; two opposing support frames are also fixedly connected to the top surface of the base plate, the two support frames being located on opposite sides of the two clamping plates respectively, and a pressure plate slidably disposed between the two support frames, the pressure plate being located above the two clamping plates, and a second driving mechanism on the support frames for driving the pressure plate to slide in the vertical direction; two vertical sampling tubes are disposed on the pressure plate, one sampling tube being disposed opposite to the fruit pit area within the fruit core line, and the other sampling tube being disposed opposite to the fruit pulp area outside the fruit core line.
[0006] In this system, the fruit is placed within the fruit clamping area, and a first driving mechanism drives two clamping plates to slide relative to each other, thus clamping and fixing the fruit. A second driving mechanism drives a pressure plate to slide vertically downwards, allowing two sampling tubes to be inserted into the fruit for sampling. One sampling tube samples the pit area, and the other samples the pulp area. By sampling the fruit in different zones, different functional areas of the fruit can be analyzed separately, ensuring the accuracy and consistency of the fruit analysis and evaluation.
[0007] As an optimization, a piston block is slidably connected inside the sampling tube, and a push rod is fixedly connected to the upper end of the piston block. The upper end of the push rod extends outside the sampling tube and is fixedly connected to a pressing plate. This optimized solution allows the push rod to be pushed downward by the pressing plate, which in turn causes the piston block to slide downward, thereby pushing out the sample from the sampling tube, making it easier for personnel to collect and more convenient to use.
[0008] As an optimization, a third sliding hole is provided in the middle of the pressure plate, extending axially along the pressure plate. A retaining ring is fixedly fitted onto the outer wall of the sampling tube, engaging within the third sliding hole and sliding along it. This optimized design allows the sampling tube to slide along the third sliding hole via the retaining ring, facilitating sampling at different locations within the corresponding area, making sampling more flexible and convenient.
[0009] As an optimization, a positioning bolt is screwed onto the retaining ring to tighten the pressure plate. This optimized solution uses the positioning bolt to tighten the pressure plate, thus fixing the retaining ring and ensuring the position of the sampling tube is fixed, guaranteeing sampling stability.
[0010] As an optimization, a first sliding hole is provided in the middle of the base plate, extending along the arrangement direction of the two clamping plates. Two first sliders are slidably connected within the first sliding hole, and the first sliders slide horizontally along the first sliding hole. The two clamping plates are respectively fixedly connected to the two first sliders. In this optimized solution, the clamping plates are slidably connected to the base plate through the first sliders and slide horizontally.
[0011] As an optimization, the first driving mechanism includes a bidirectional lead screw passing through the first sliding hole. The bidirectional lead screw extends along the length of the first sliding hole and is rotatably connected to the base plate. A rotating handle is fixedly connected to one end of the bidirectional lead screw, and first nuts are threaded onto the bidirectional threads of the bidirectional lead screw. Two first sliders are fixedly connected to the two first nuts respectively. In this optimized solution, rotating the bidirectional lead screw by rotating the handle causes the two first nuts to move relative to each other, thereby driving the two first sliders to slide relative to each other, causing the two clamping plates to move closer or further apart.
[0012] As an optimization, a second slider is fixedly connected to both ends of the pressure plate, and the two second sliders are slidably connected to the two support frames and slide in the vertical direction. In this optimized solution, the pressure plate slides to the two support frames through the second sliders at both ends and slides in the vertical direction.
[0013] As an optimization, the second driving mechanism includes a one-way lead screw rotatably connected to the support frame. The one-way lead screw extends vertically, and a motor for driving the one-way lead screw to rotate is fixed on the support frame. A second nut is threaded onto the one-way lead screw, and a second slider is fixedly connected to the second nut. This optimized solution uses a motor to drive the one-way lead screw to rotate, causing the second nut to move vertically, which in turn drives the second slider to slide, causing the pressure plate to move up and down.
[0014] As an optimization, a limiting block is fixedly connected to the support frame. The limiting block is located below the pressure plate, and its height is not lower than the upper height of the clamping plate. This optimization scheme limits the sliding position of the pressure plate by using the limiting block, thus preventing the pressure plate from colliding with the clamping plate.
[0015] The beneficial effects of this invention are as follows: During use, the fruit is placed within the fruit clamping area, and the two clamping plates are driven to slide relative to each other by the first driving mechanism, thereby clamping and fixing the fruit. The pressure plate is driven to slide vertically downwards by the second driving mechanism, allowing two sampling tubes to be inserted into the fruit for sampling. One sampling tube samples the pit area, and the other samples the pulp area. By sampling the fruit in different sections, different functional areas of the fruit can be analyzed separately, thus ensuring the accuracy and consistency of the fruit analysis and evaluation. Attached Figure Description
[0016] Figure 1 This is a front view of the present utility model;
[0017] Figure 2 This is a cross-sectional view of the present invention;
[0018] Figure 3 This is a side view of the present invention;
[0019] Figure 4 This is a top view of the base plate;
[0020] Figure 5 This is a top view of the pressure plate;
[0021] Figure 6 This is a front sectional view of the pressure plate;
[0022] Figure 7 This is a schematic diagram of the usage state of this utility model;
[0023] As shown in the figure:
[0024] 1. Base plate; 11. First sliding hole; 12. Placement groove; 2. Clamping plate; 21. First slider; 3. Support frame; 31. Vertical plate; 32. Horizontal plate; 33. Limiting block; 4. Pressure plate; 41. Second slider; 42. Third sliding hole; 5. Sampling tube; 51. Piston block; 52. Push rod; 53. Pressing plate; 6. First drive mechanism; 61. Two-way lead screw; 62. First nut; 63. Rotating handle; 7. Second drive mechanism; 71. One-way lead screw; 72. Second nut; 73. Motor; 8. Snap ring; 81. Collar; 82. Limiting ring; 9. Positioning bolt; 10. Apple. Detailed Implementation
[0025] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.
[0026] like Figures 1-7 As shown, a precision sampling device based on the functional zoning of the fruit core line includes a base plate 1, two opposing clamping plates 2 are slidably disposed on the top surface of the base plate 1, forming a fruit clamping area between the two clamping plates 2, and a first driving mechanism 6 is provided on the base plate 1 to drive the two clamping plates 2 to slide relative to each other in the horizontal direction.
[0027] Specifically, a first sliding hole 11 is provided in the middle of the base plate 1, extending along the arrangement direction of the two clamping plates 2. In this embodiment, the first sliding hole 11 is a through hole penetrating the base plate 1. Two first sliders 21 are slidably connected within the first sliding hole 11, and the first sliders 21 slide horizontally along the first sliding hole 11. The two clamping plates 2 are respectively fixed to the two first sliders 21. In this embodiment, the width of the first slider 21 is adapted to the width of the first sliding hole 11, thereby enabling the first slider 21 to slide stably within the first sliding hole 11, thus ensuring the stability of the sliding of the clamping plate 2. The clamping plate 2 slides horizontally through the first sliders 21 and the base plate 1.
[0028] Specifically, the first drive mechanism 6 includes a bidirectional lead screw 61 passing through the first sliding hole 11. The bidirectional lead screw 61 extends along the length of the first sliding hole 11 and is rotatably connected to the base plate 1. A rotating handle 63 is fixedly connected to one end of the bidirectional lead screw 61. First nuts 62 are threaded onto the bidirectional threads of the bidirectional lead screw 61, and the two first sliders 21 are fixedly connected to the two first nuts 62 respectively.
[0029] In this embodiment, the bidirectional lead screw 61 passes through both ends of the base plate 1 and extends to the outside of the base plate 1. The bidirectional lead screw 61 is rotatably connected to the base plate 1 via bearings, ensuring the rotational stability of the bidirectional lead screw 61. The rotating handle 63 is fixedly connected to one end of the bidirectional lead screw 61, and the operator can rotate the bidirectional lead screw 61 by rotating the rotating handle 63. The rotating handle 61 can also be replaced by a motor, which drives the bidirectional lead screw to rotate, requiring less effort. This is a conventional technology and will not be elaborated further. In this embodiment, the first nut 62 passes through the first slider 21 and is fixedly connected to the first slider.
[0030] The rotation of the bidirectional lead screw 61 causes the two first nuts 62 to move relative to each other, which in turn drives the two first sliders 21 to slide relative to each other, causing the two clamping plates 2 to move closer or further apart, thereby clamping or releasing the fruit.
[0031] Preferably, the top surface of the base plate 1 is also provided with a placement groove 12, which is located in the middle of the first sliding hole 11. By placing the fruit in the placement groove 12, the fruit can be further limited and the fixing effect can be improved. When the bidirectional lead screw 61 rotates, the two first nuts 62 can move synchronously, which in turn can make the two clamping plates 2 slide synchronously, thereby clamping the fruit in the middle.
[0032] Two opposing support frames 3 are fixed to the top surface of the base plate 1, and the two support frames 3 are located on opposite sides of the two clamping plates 2. A pressure plate 4 is slidably arranged between the two support frames 3, and the pressure plate 4 is located above the two clamping plates 2. A second driving mechanism 7 is provided on the support frame 3 to drive the pressure plate 4 to slide in the vertical direction.
[0033] Specifically, each end of the pressure plate 4 is fixedly connected to a second slider 41, and the two second sliders 41 are slidably connected to the two support frames 3 and slide in the vertical direction.
[0034] The support frame 3 described in this embodiment includes two opposing vertical plates 31 and a horizontal plate 32 fixed to the upper ends of the two vertical plates 31. The lower ends of the two vertical plates 31 are fixed to the top surface of the base plate 1, and the two vertical plates 31 and the horizontal plate 32 form an inverted U-shaped structure. The width of the second slider 41 is adapted to the distance between the two vertical plates 31, so that the second slider 41 can slide stably between the two vertical plates 31, thereby ensuring the stability of the sliding of the pressure plate 4. The pressure plate 4 slides in the vertical direction through the second sliders 41 at both ends, slidably engaging with the two support frames 3.
[0035] Specifically, the second drive mechanism 7 includes a one-way lead screw 71 rotatably connected to the support frame 3. The one-way lead screw 71 extends vertically, and a motor 73 for driving the one-way lead screw 71 to rotate is fixed on the support frame 3. A second nut 72 is threaded onto the one-way lead screw 71, and the second slider 41 is fixedly connected to the second nut 72.
[0036] In this embodiment, the motor 73 is fixedly connected to the top of the horizontal plate 32, and the one-way screw 71 is located between the two vertical plates 31. The upper end of the one-way screw 71 passes through the horizontal plate 32 and is fixedly connected to the output end of the motor 73. The lower end of the one-way screw 71 is rotatably connected to the base plate 1 to improve the rotational stability of the one-way screw. The motor 73 drives the one-way screw 71 to rotate, causing the second nut 72 to move vertically, which in turn drives the second slider 41 to slide, causing the pressure plate 4 to slide up and down.
[0037] In this embodiment, both support frames 3 are equipped with the second drive mechanism 7, and the motors 73 of the two second drive mechanisms 7 rotate synchronously in the same direction. In this embodiment, the motors 73 are servo motors, Mitsubishi brand, model HG-JR353. Servo motors offer higher precision control, thus ensuring the synchronous operation of the two motors. The synchronous up-and-down sliding of the pressure plate 4 by the two second drive mechanisms 7 makes the movement of the pressure plate more stable.
[0038] Preferably, a limiting block 33 is fixedly connected to the support frame 3. The limiting block 33 is located below the pressure plate 4, and the height of the limiting block 33 is not lower than the upper end height of the clamping plate 2. The limiting block 33 limits the sliding position of the pressure plate 4, preventing the pressure plate 4 from colliding with the clamping plate 2 when it slides downward.
[0039] The pressure plate 4 is equipped with two vertical sampling tubes 5. One sampling tube 5 is positioned opposite the pit area within the fruit core line, and the other sampling tube 5 is positioned opposite the flesh area outside the fruit core line. The two sampling tubes 5 can be moved up and down by sliding the pressure plate 4, so that the sampling tubes 5 can be inserted into the corresponding areas for sampling.
[0040] In this embodiment, the length of the sampling tube 5 is greater than the height of the fruit to be sampled. When the pressure plate 4 slides downward and contacts the limiting plate 33, the sampling tube 5 can penetrate the fruit, thereby completely removing the sample.
[0041] Specifically, a third sliding hole 42 is provided in the middle of the pressure plate 4, and the third sliding hole 42 extends along the axial direction of the pressure plate 4. A retaining ring 8 is fitted and fixed to the outer wall of the sampling tube 5, and the retaining ring 8 is engaged in the third sliding hole 42 and slides along the third sliding hole 42.
[0042] The retaining ring 8 described in this embodiment includes a collar 81 and two limiting rings 82. The collar 81 is sleeved on the outside of the sampling tube 5 and fixedly connected to the outer wall of the sampling tube 5. The outer diameter of the collar 81 is adapted to the diameter of the third sliding hole 42. The two limiting rings 82 are also sleeved on the outside of the sampling tube 5, and the two limiting rings 82 are respectively located at the upper and lower ends of the collar 81 and fixedly connected to the collar 81. The outer diameter of the limiting rings 82 is larger than the diameter of the third sliding hole 42. The collar 81 is engaged inside the third sliding hole 42 by the upper and lower limiting rings 82 and slides along the third sliding hole 42.
[0043] The sampling cannula 5 can slide along the third sliding hole 42 via the retaining ring 8, which makes it easier for the sampling cannula 5 to sample different locations in the corresponding area, making sampling more flexible and convenient.
[0044] Preferably, a positioning bolt 9 is screwed onto the retaining ring 8 to tighten the pressure plate 4. The positioning bolt 9 is vertically arranged and threadedly connected to the limiting ring 82 of the retaining ring 8. By tightening the positioning bolt 9 to tighten the pressure plate 4, the retaining ring 8 is fixed, thereby fixing the position of the sampling tube 5 and ensuring sampling stability.
[0045] The lower end of the sampling tube 5 has a tapered structure, allowing for smoother insertion into the fruit. A piston block 51 slides inside the sampling tube 5, and a push rod 52 is fixedly connected to the upper end of the piston block 51. The upper end of the push rod 52 extends outside the sampling tube 5 and is fixedly connected to a pressing plate 53. The push rod 52 can be pushed downwards by the pressing plate 53, causing the piston block 51 to slide downwards, thereby pushing out the sample from the sampling tube 5 for easier collection and use.
[0046] Working principle: During use, place the apple in the placement slot 12 of the base plate 1. The operator rotates the handle 63 at the end of the double-acting screw 61, causing the screw 61 to rotate and the two clamping plates 2 to slide closer together, thus clamping and fixing the apple in the middle. Slide the two sampling tubes 5 along the third sliding hole 42, aligning them with the core area in the middle of the apple and the flesh area on the outside, respectively. After the sampling tubes 5 are positioned, tighten the positioning bolt 9 to press against the pressure plate 4, thus fixing the position of the sampling tubes 5.
[0047] The motor 73 drives the one-way screw 71 to rotate, which in turn causes the pressure plate 4 to slide downwards, allowing the two sampling tubes 5 to penetrate the apple and store the pulp inside the sampling tubes 5. The motor 73 then rotates in the opposite direction, causing the one-way screw 71 to rotate in the opposite direction, which in turn causes the pressure plate 4 to slide upwards. By pressing the pressing plate 53, the piston block 51 slides downwards, thus pushing out the pulp from inside the sampling tubes 5 for separate collection.
[0048] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.
Claims
1. A precise sampling device based on the functional zoning of the fruit core line, characterized in that: Includes a base plate (1), on the top surface of the base plate (1) two opposing clamping plates (2) are slidably arranged, and a fruit clamping area is formed between the two clamping plates (2). The base plate (1) is provided with a first driving mechanism (6) that drives the two clamping plates (2) to slide relative to each other in the horizontal direction. Two opposing support frames (3) are fixed to the top surface of the base plate (1). The two support frames (3) are located on opposite sides of the two clamping plates (2). A pressure plate (4) is slidably arranged between the two support frames (3). The pressure plate (4) is located above the two clamping plates (2). A second driving mechanism (7) is provided on the support frame (3) to drive the pressure plate (4) to slide in the vertical direction. The pressure plate (4) is provided with two vertical sampling tubes (5), one of which is set opposite to the fruit pit area inside the fruit core line, and the other sampling tube (5) is set opposite to the fruit pulp area outside the fruit core line.
2. The precise sampling device based on the functional zoning of the fruit core line according to claim 1, characterized in that: A piston block (51) is slidably connected inside the sampling tube (5). A push rod (52) is fixedly connected to the upper end of the piston block (51). The upper end of the push rod (52) extends outside the sampling tube (5) and is fixedly connected to a pressing plate (53).
3. The precise sampling device based on the functional zoning of the fruit core line according to claim 1 or 2, characterized in that: The pressure plate (4) has a third sliding hole (42) in the middle. The third sliding hole (42) extends along the axial direction of the pressure plate (4). The outer wall of the sampling tube (5) is fitted with a retaining ring (8). The retaining ring (8) is locked in the third sliding hole (42) and slides along the third sliding hole (42).
4. The precise sampling device based on the functional zoning of the fruit core line according to claim 3, characterized in that: The retaining ring (8) is screwed with a positioning bolt (9) that can tighten the pressure plate (4).
5. The precise sampling device based on the functional zoning of the fruit core line according to claim 1, characterized in that: The base plate (1) has a first sliding hole (11) in the middle. The first sliding hole (11) extends along the arrangement direction of the two clamping plates (2). Two first sliders (21) are slidably connected in the first sliding hole (11). The first sliders (21) slide horizontally along the first sliding hole (11). The two clamping plates (2) are respectively fixed to the two first sliders (21).
6. The precise sampling device based on the functional zoning of the fruit core line according to claim 5, characterized in that: The first drive mechanism (6) includes a bidirectional lead screw (61) passing through the first sliding hole (11). The bidirectional lead screw (61) extends along the length direction of the first sliding hole and is rotatably connected to the base plate (1). A rotating handle (63) is fixedly connected to one end of the bidirectional lead screw (61). A first nut (62) is threadedly connected to the bidirectional thread of the bidirectional lead screw (61). Two first sliders (21) are fixedly connected to two first nuts (62) respectively.
7. The precise sampling device based on the functional zoning of the fruit core line according to claim 1, characterized in that: The pressure plate (4) has two second sliders (41) fixedly connected to both ends. The two second sliders (41) are slidably connected to the two support frames (3) and slide in the vertical direction.
8. The precise sampling device based on the functional zoning of the fruit core line according to claim 7, characterized in that: The second drive mechanism (7) includes a one-way screw (71) rotatably connected to the support frame (3). The one-way screw extends vertically. A motor (73) for driving the one-way screw (71) to rotate is fixed on the support frame (3). A second nut (72) is threaded onto the one-way screw (71). The second slider (41) is fixed to the second nut.
9. The precise sampling device based on the functional zoning of the fruit core line according to any one of claims 1, 7, and 8, characterized in that: A limiting block (33) is fixedly attached to the support frame (3). The limiting block (33) is located below the pressure plate (4), and the height of the limiting block (33) is not lower than the upper height of the clamping plate (2).