A device for measuring the longitudinal and transverse diameters of a fruit

By designing an open-box structure for measuring the longitudinal and transverse diameters of fruits, the problem of large errors and inconvenience in measuring irregularly shaped and medium-sized fruits with vernier calipers was solved, enabling rapid and accurate measurement of the longitudinal and transverse diameters of fruits, which is suitable for field operations.

CN224552272UActive Publication Date: 2026-07-24POMOLOGY RES INST FUJIAN ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
POMOLOGY RES INST FUJIAN ACAD OF AGRI SCI
Filing Date
2025-04-15
Publication Date
2026-07-24

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Abstract

The utility model relates to measuring device field especially relates to a kind of longitudinal and transverse diameter measuring device of fruit. Including a portable open box, the bottom of the box is the fruit supporting surface, the side of the box includes mutually perpendicular measuring surface and limiting surface, the top of the measuring surface is equipped with main ruler, the inner side of the measuring surface is equipped with the slide rail parallel with the fruit supporting surface along length direction, the slide rail is slidably connected with slider, the slider is fixedly connected with the measuring push plate parallel with the limiting surface, to facilitate with the main ruler to form vernier caliper structure. The utility model is equipped with hand-held part on the box, and the device is convenient to carry. Simple operation can quickly complete the measurement of fruit longitudinal and transverse diameter, and measurement error is smaller. Wide measurement range, suitable for the measurement of longitudinal and transverse diameter of heterotypic fruit and medium fruit even large fruit simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of measuring devices, and in particular to a measuring device for the longitudinal and transverse diameters of a fruit. Background Technology

[0002] Fruit size is an important indicator for evaluating fruit quality, and it, along with single fruit weight, fruit firmness, acid content, soluble solids content, and aromatic substances, constitutes the fruit quality evaluation system. Measuring the longitudinal and transverse diameters of fruits is a crucial step in obtaining raw data in agricultural research and is frequently used in research practice. In related research, determining the longitudinal and transverse diameters of fruits is a routine and frequent task, often involving a very large workload, especially in breeding screening where many varieties need to be compared, requiring the measurement of thousands of fruits, and often averaging the measurements.

[0003] Currently, the commonly used instrument for measuring fruit size is the vernier caliper. However, the vernier caliper cannot stabilize the fruit during operation, especially for irregularly shaped fruits, requiring the measurement position to be determined visually, resulting in large measurement errors and low efficiency.

[0004] Furthermore, due to the large size and weight of medium-sized fruits such as pomelos, it is difficult to operate with one hand using vernier calipers, requiring two people to complete the measurement work, which is inefficient. Although some larger devices can be operated by one person, they are inconvenient to carry and not conducive to field measurement work. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a measuring device for the longitudinal and transverse diameters of fruit, which is suitable for measuring the longitudinal and transverse diameters of irregular and medium-sized fruits, and is easy to carry.

[0006] This utility model is implemented as follows: A measuring device for the longitudinal and transverse diameters of fruit includes a liftable open box. The bottom of the box is a fruit-supporting surface, and the sides of the box include mutually perpendicular measuring surfaces and limiting surfaces. A main scale is provided on the top of the measuring surface, and a slide rail parallel to the fruit-supporting surface is provided along the length direction on the inner side of the measuring surface. A slider is slidably connected to the slide rail, and a measuring push plate parallel to the limiting surface is fixedly connected to the slider, so as to form a vernier caliper structure with the main scale.

[0007] Furthermore, the end of the fruit-supporting surface is provided with a handle.

[0008] Furthermore, a handle hole is provided on the handle.

[0009] Furthermore, the main scale is a graduated ruler or a digital ruler.

[0010] Furthermore, the measuring push plate is L-shaped, with the long side of the L-shape parallel to the limiting surface, and the short side of the L-shape fixedly connected to the slider. A ruler is vertically mounted on the short side, thus forming a vernier caliper structure with the main ruler.

[0011] Furthermore, the ruler rod is suspended above the main ruler.

[0012] Furthermore, the sides of the housing are provided with matrix-arranged through holes.

[0013] Furthermore, the side of the box also includes a enclosure surface parallel to the measuring surface. One end of the enclosure surface is connected to the measuring surface via the limiting surface, and the other end is connected via a support rod.

[0014] Furthermore, the slide rail is a single slide rail or a double slide rail.

[0015] Furthermore, the bottom of the fruit-supporting surface is provided with matrix-arranged groove blocks.

[0016] The advantages of this utility model are: The device is equipped with a carrying handle, making it easy to carry.

[0017] It is easy to operate and can quickly complete the measurement of the longitudinal and transverse diameters of fruits with small measurement errors.

[0018] It has a wide measurement range and is suitable for measuring the longitudinal and transverse diameters of irregularly shaped, medium-sized, and even large fruits. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 for Figure 1 A schematic diagram of the bottom structure.

[0022] Figure 3 This is a schematic diagram illustrating the use of this utility model.

[0023] The numbers in the diagram are: fruit support surface 1, handle hole 11, groove block 12, measuring surface 2, limiting surface 3, main scale 4, slide rail 5, sliding track 51, slider 6, roller 61, measuring push plate 7, ruler rod 71, enclosure surface 8, support rod 9, fruit 100. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The technical solution of this utility model is as follows: Please see Figure 1 and Figure 2 As shown, this utility model discloses a measuring device for the longitudinal and transverse diameters of a fruit, comprising a liftable open box. The bottom of the box is a fruit-supporting surface 1, and the sides of the box include mutually perpendicular measuring surfaces 2 and limiting surfaces 3. A main scale 4 is provided on the top of the measuring surface 2, and a slide rail 5 parallel to the fruit-supporting surface 1 is provided along the length direction on the inner side of the measuring surface 2. A slider 6 is slidably connected to the slide rail 5, and a measuring push plate 7 parallel to the limiting surface 3 is fixedly connected to the slider 6, so as to form a vernier caliper structure with the main scale 4.

[0027] Specifically, the end of the fruit-supporting surface 1 is provided with a handle, making the device easy to carry.

[0028] In one specific embodiment, the handle is provided with a strip-shaped handle hole 11.

[0029] Specifically, the main scale 4 can be a graduated ruler or a digital ruler.

[0030] When the main scale is a digital scale, conventional sensors, such as photoelectric sensors or inductive sensors, are built into the measuring push plate. These sensors can detect minute changes in the position of the measuring push plate and convert them into electrical signals. The sensors convert the change signal of the measuring push plate position into an electrical signal related to the length to be measured. These signals are further processed into digital signals, and the converted digital signals are transmitted to the digital display screen (main scale) and the values ​​are displayed digitally.

[0031] When the main scale is a graduated ruler, the scale is set along the length of the top of the measuring surface. In a specific embodiment, the scale is 30cm.

[0032] Specifically, the measuring push plate 7 is L-shaped, with the long side of the L-shape parallel to the limiting surface 3, and the short side of the L-shape fixedly connected to the slider 6. A ruler 71 is vertically arranged on the short side, and the ruler 71 is on the same longitudinal plane as the long side of the L-shape, thus forming a vernier caliper structure with the main ruler 4.

[0033] In one specific embodiment, the ruler 71 is suspended above the main ruler 4. This arrangement can reduce wear on the main ruler 4.

[0034] Specifically, the side of the housing also includes a retaining surface 8 parallel to the measuring surface 2. One end of the retaining surface 8 is connected to the measuring surface 2 via the limiting surface 3, and the other end is connected via a support rod 9. The support rod 9 provides support and stability to the device.

[0035] Specifically, the sides of the housing are provided with a matrix of through holes. Since the entire device is made of metal, these through holes are provided on the sides to reduce weight and make it easier to carry.

[0036] In a specific embodiment, both the enclosure surface 8 and the measuring surface 2 are provided with elongated through holes. Since these two sides do not directly contact the fruit, the elongated through holes can better achieve the purpose of weight reduction.

[0037] In a specific embodiment, both the limiting surface 3 and the measuring push plate 7 have regionally arranged small holes on their long sides. The purpose of setting the small holes is to prevent the fruit from protruding from the small holes, thereby affecting the accuracy of the measurement values.

[0038] Specifically, the bottom of the fruit-supporting surface 1 is provided with a matrix of arranged grooves 12, which locally thins the bottom and is also for the purpose of reducing the weight of the device, ultimately making the weight of the device about 2.5 kg. No through holes are provided at the bottom to prevent weeds or other debris from entering the ground and making the fruit-supporting surface dirty, which could also affect the measurement data.

[0039] Specifically, the slide rail 5 is a single slide rail or a double slide rail.

[0040] In a specific embodiment, the slide rail 5 is a double slide rail, with sliding tracks 51 provided at both the upper and lower ends of the slide rail, and the slider 6 is also equipped with two corresponding rollers 61 that can move on the sliding tracks.

[0041] like Figure 3 As shown, when using the equipment, place the fruit 100 into the box, place it on the fruit support surface 1 while keeping it close to the limiting surface 3, and then move the measuring push plate 7 until its long side is in close contact with the fruit and then stop. Read the value by the position of the ruler 71.

[0042] The structure of this utility model is reasonably designed. During measurement, the measuring push plate is in close contact with the fruit, which can measure the maximum distance between the two ends of the fruit. Therefore, especially for irregularly shaped fruits, there is no need to subjectively determine the measurement position, and the longitudinal and transverse diameters can be measured objectively.

[0043] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A measuring device for the longitudinal and transverse diameters of a fruit, characterized in that: The device includes a liftable open box. The bottom of the box is a fruit-supporting surface. The sides of the box include mutually perpendicular measuring surfaces and limiting surfaces. A main scale is provided on the top of the measuring surface. A slide rail parallel to the fruit-supporting surface is provided along the length direction on the inner side of the measuring surface. A slider is slidably connected to the slide rail. A measuring push plate parallel to the limiting surface is fixedly connected to the slider so as to form a vernier caliper structure with the main scale.

2. The measuring device for the longitudinal and transverse diameters of fruit as described in claim 1, characterized in that: The end of the fruit-supporting surface is provided with a handle.

3. The measuring device for the longitudinal and transverse diameters of fruit as described in claim 2, characterized in that: The handle has a carrying hole.

4. The measuring device for the longitudinal and transverse diameters of fruit as described in claim 1, characterized in that: The main scale is a graduated ruler or a digital ruler.

5. The measuring device for the longitudinal and transverse diameters of fruit as described in claim 1, characterized in that: The measuring push plate is L-shaped, with the long side of the L-shape parallel to the limiting surface and the short side of the L-shape fixedly connected to the slider. A ruler is vertically provided on the short side, thus forming a vernier caliper structure with the main ruler.

6. The measuring device for the longitudinal and transverse diameters of fruit as described in claim 5, characterized in that: The ruler rod is suspended above the main ruler.

7. The measuring device for the longitudinal and transverse diameters of a fruit as described in claim 1, characterized in that: The sides of the box are provided with a matrix of through holes.

8. The measuring device for the longitudinal and transverse diameters of a fruit as described in claim 1, characterized in that: The side of the box also includes a enclosure surface parallel to the measuring surface. One end of the enclosure surface is connected to the measuring surface through the limiting surface, and the other end is connected through a support rod.

9. The measuring device for the longitudinal and transverse diameters of a fruit as described in claim 1, characterized in that: The slide rail can be a single slide rail or a double slide rail.

10. The measuring device for the longitudinal and transverse diameters of a fruit as described in claim 1, characterized in that: The bottom of the fruit-supporting surface is provided with a matrix of arranged grooves.