Novel ripeness measuring tool for watermelons

Abstract

The utility model provides a novel ripeness measuring tool for watermelons, and relates to the technical field of watermelon ripeness measuring tools, the novel ripeness measuring tool for watermelons comprises a first fixing plate, the inner wall of the first fixing plate is provided with two sliding grooves, the inner walls of the two sliding grooves are slidably connected with sliding blocks, a sliding plate is fixedly connected between the outer surfaces of the two sliding blocks, and the sliding plate is fixedly connected with the inner wall of the first fixing plate. A moving shaft is fixedly embedded in the center of the inner wall of the sliding plate, and one end of the moving shaft is fixedly connected with a knocking rod. According to the device, the motor is arranged to drive the sliding plate to move, the sliding plate can drive the knocking rod to move and extrude the spring at the same time when moving, when the rotating rod rotates to a certain degree, the extrusion force on the spring disappears, the spring can drive the knocking rod to knock the outer surface of a watermelon, and knocking sound can be transmitted into the sound wave sensor; the ripening of the watermelons is distinguished through the knocking sound, so that the completeness of the peel of the watermelons is guaranteed, and the storage time of the watermelons is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of ripeness testing tools, and in particular to a novel ripeness testing tool for watermelons. Background Technology

[0002] Watermelon ripeness testing tools are instruments and equipment specifically designed to determine the ripeness of watermelons. They help farmers and sales personnel assess the ripeness and edibility of watermelons, enabling them to more accurately select ripe watermelons and ensure their palatability.

[0003] In existing technologies, watermelon ripeness testing tools typically use sugar content testing needles. These needles pierce the watermelon rind to extract juice from the inside and measure the sugar content, thus determining the watermelon's ripeness. However, judging ripeness by piercing the rind allows bacteria, mold, and other microorganisms to enter the watermelon through the puncture, accelerating the rotting process and reducing the watermelon's shelf life. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the existing technology, piercing the rind of a watermelon to determine its ripeness allows external bacteria, mold, and other microorganisms to enter the watermelon through the puncture, accelerating the rotting process and reducing the watermelon's shelf life. Therefore, this invention proposes a novel ripeness testing tool for watermelons.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel ripeness testing tool for watermelons, comprising a first fixed plate, two grooves formed on the inner wall of the first fixed plate, sliders slidably connected to the inner walls of the two grooves, a sliding plate fixedly connected between the outer surfaces of the two sliders, a movable shaft fixedly embedded at the center of the inner wall of the sliding plate, a striking rod fixedly connected to one end of the movable shaft, and a movable plate fixedly connected to the outer surface of the sliding plate.

[0006] Preferably, the outer surface of the sliding plate is slidably connected to the inner wall of the first fixed plate, and the outer surface of the movable plate slides against the inner wall of the first fixed plate.

[0007] Preferably, a spring is provided on one side of the outer surface of the skateboard, one end of the spring is fixedly connected to the outer surface of the skateboard, and the other end of the spring is fixedly connected to a cover plate.

[0008] Preferably, one outer surface of the cover plate is fixedly connected to the outer surface of the first fixing plate, and a loudspeaker is provided on the outer surface of the cover plate.

[0009] Preferably, a connecting plate is fixedly connected to the other outer surface of the cover plate, and a fixing box is fixedly connected to one end of the connecting plate. A motor is provided on the inner wall of the fixing box.

[0010] Preferably, the output end of the motor is fixedly connected to an output shaft, and a rotating rod is fixedly sleeved on the outer surface of the output shaft, with the outer surface of the rotating rod sliding against the outer surface of the movable plate.

[0011] Preferably, a second fixing plate is fixedly connected to the outer surface of the other side of the first fixing plate, and an acoustic sensor is provided on the inner wall of the second fixing plate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the device uses a motor to drive a rotating rod to rotate, which in turn moves a sliding plate. As the sliding plate moves, it moves a striking rod and compresses a spring. When the rotating rod rotates to a certain extent, the compressive force on the spring disappears, and the spring drives the striking rod to strike the outer surface of the watermelon. The sound of the strike is transmitted to a sound wave sensor, which uses the sound of the strike to distinguish the ripeness of the watermelon, thus ensuring the integrity of the watermelon rind and extending the shelf life of the watermelon.

[0014] 2. In this utility model, the device has a second fixed plate. When the striking rod strikes the watermelon, the watermelon rind at the striking point will be located inside the second fixed plate, thereby isolating external noise and ensuring that the sound of striking the watermelon can be clearly transmitted to the sound wave sensor, thus ensuring the accuracy of judging the ripeness of the watermelon. Attached Figure Description

[0015] Figure 1 A frontal perspective view of a novel ripeness measuring tool for watermelons is provided for this utility model.

[0016] Figure 2 A frontal perspective view of the first fixing plate of a novel ripeness measuring tool for watermelons is provided for this utility model.

[0017] Figure 3 This utility model provides a frontal perspective view of the groove of a novel ripeness measuring tool for watermelons;

[0018] Figure 4 A frontal perspective perspective view of a tapping stick for a novel ripeness testing tool for watermelons is provided for this utility model.

[0019] Figure 5 A frontal perspective perspective view of a loudspeaker for a novel ripeness testing tool for watermelons is provided for this utility model.

[0020] Figure 6 This utility model provides a front perspective perspective view of the connecting plate of a novel ripeness testing tool for watermelons;

[0021] Figure 7This utility model provides a three-dimensional cross-sectional view of the fixing box structure of a novel ripeness measuring tool for watermelons.

[0022] Figure 8 The present invention provides a frontal perspective view of the second fixing plate of a novel ripeness testing tool for watermelons.

[0023] Legend: 1. First fixed plate; 2. Slide groove; 3. Slider; 4. Slide plate; 5. Moving shaft; 6. Striking rod; 7. Moving plate; 8. Spring; 9. Cover plate; 10. Announcer; 11. Connecting plate; 12. Fixed box; 13. Motor; 14. Output shaft; 15. Rotating rod; 16. Second fixed plate; 17. Sound wave sensor. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1: As Figures 1-8 As shown, this utility model provides a novel ripeness test tool for watermelons, comprising: a first fixed plate 1; two grooves 2 are formed on the inner wall of the first fixed plate 1; sliders 3 are slidably connected to the inner walls of both grooves 2; a sliding plate 4 is fixedly connected between the outer surfaces of the two sliders 3; a movable shaft 5 is fixedly embedded at the center of the inner wall of the sliding plate 4; a striking rod 6 is fixedly connected to one end of the movable shaft 5; a movable plate 7 is fixedly connected to the outer surface of the sliding plate 4; the outer surface of the sliding plate 4 is slidably connected to the inner wall of the first fixed plate 1; the outer surface of the movable plate 7 slides against the inner wall of the first fixed plate 1; and one side of the outer surface of the sliding plate 4 is provided with... A spring 8 is provided, one end of which is fixedly connected to the outer surface of the slide plate 4, and the other end of the spring 8 is fixedly connected to a cover plate 9. One outer surface of the cover plate 9 is fixedly connected to the outer surface of the first fixed plate 1. A loudspeaker 10 is provided on the outer surface of the cover plate 9, and a connecting plate 11 is fixedly connected to the other outer surface of the cover plate 9. A fixed box 12 is fixedly connected to one end of the connecting plate 11. A motor 13 is provided on the inner wall of the fixed box 12. An output shaft 14 is fixedly connected to the output end of the motor 13. A rotating rod 15 is fixedly sleeved on the outer surface of the output shaft 14. The outer surface of the rotating rod 15 slides against the outer surface of the moving plate 7.

[0027] The effect achieved by the entire embodiment 1 is as follows: During the use of this novel ripeness testing tool for watermelons, the operator first places the watermelon inside the second fixed plate 16. At this time, the outer surface of the striking rod 6 is in contact with the outer surface of the watermelon. Then, the operator starts the motor 13, which drives the output shaft 14 to rotate. The rotation of the output shaft 14 drives the rotating rod 15 to rotate. The outer surface of the rotating rod 15 is in contact with the outer surface of the moving plate 7. The rotation of the rotating rod 15 drives the moving plate 7 to move. As the moving plate 7 moves, its outer surface slides along the inner wall of the first fixed plate 1. Simultaneously, the moving plate 7 drives the sliding plate 4 to move. The surface will slide along the inner wall of the first fixed plate 1. At the same time, the slide plate 4 will drive the slider 3 and the moving shaft 5 to move. The outer surface of the slider 3 will slide along the inner wall of the slide groove 2. When the moving shaft 5 moves, it will drive the striking rod 6 to move. At the same time, when the slide plate 4 slides along the inner wall of the first fixed plate 1, it will compress the spring 8. When the rotating rod 15 rotates to a certain angle, the outer surface of the rotating rod 15 will no longer be in contact with the outer surface of the moving plate 7. The compressive force on the spring 8 will disappear, and the elastic force of the spring 8 will drive the slide plate 4 to move. When the slide plate 4 moves, it will drive the slider 3 to slide along the inner wall of the slide groove 2. At the same time, the slide plate 4 will also drive the moving shaft 5 to move. When shaft 5 moves, it drives the striking rod 6 to move as well. The outer surface of the striking rod 6 strikes the outer surface of the watermelon, producing a sound. This sound travels to the sound wave sensor 17. When the watermelon is unripe, its internal structure is relatively compact, mainly containing more water and underdeveloped pulp fibers. When struck, the sound waves travel faster in this compact structure, resulting in a crisp sound. As the watermelon ripens, the pulp cells gradually enlarge, and the internal structure becomes looser, with more gaps filled by the flesh and juice. At this stage, the sound waves encounter more obstacles in this relatively loose structure, resulting in a duller sound. Analysis... The ripeness of a watermelon is determined by the sound it makes when tapped. A motor 13 drives a rotating rod 15 to rotate, which in turn moves a sliding plate 4. As the sliding plate 4 moves, it moves a striking rod 6 and simultaneously compresses a spring 8. When the rotating rod 15 rotates to a certain point, the compressive force on the spring 8 disappears, and the spring 8 then drives the striking rod 6 to tap the outer surface of the watermelon. The sound from this tapping is transmitted to a sound wave sensor 17, allowing the ripeness of the watermelon to be determined by the sound. This solves the problem that piercing the watermelon rind to determine ripeness allows bacteria, mold, and other microorganisms to enter the watermelon through the puncture, accelerating the rotting process and reducing the watermelon's shelf life.

[0028] Example 2: As Figures 1-8 As shown, a second fixing plate 16 is fixedly connected to the outer surface of the other side of the first fixing plate 1, and an acoustic sensor 17 is provided on the inner wall of the second fixing plate 16.

[0029] The effect achieved by the entire embodiment 2 is that, during the use of a novel ripeness testing tool for watermelons, the watermelon is placed inside the second fixed plate 16, and then the motor 13 is started. The motor 13 drives the slide plate 4 to move, and the slide plate 4 drives the striking rod 6 to move. The moving striking rod 6 strikes the outer skin of the watermelon to produce sound, and the sound of the strike is sent to the sound wave sensor 17. By setting the second fixed plate 16, when the striking rod 6 strikes the watermelon, the watermelon skin at the struck point is located inside the second fixed plate 16, thereby isolating external noise and ensuring that the sound of the watermelon being struck can be clearly transmitted to the sound wave sensor 17, thus ensuring the accuracy of judging the ripeness of the watermelon.

[0030] Working Principle: In the use of this novel watermelon ripeness testing tool, the operator first places the watermelon inside the second fixed plate 16. The watermelon rind at the point of impact is located inside the second fixed plate 16, thus isolating external noise and ensuring that the sound of the watermelon being struck is clearly transmitted to the sound wave sensor 17. At this time, the outer surface of the striking rod 6 is in contact with the outer surface of the watermelon. Then, the operator starts the motor 13, which drives the rotating rod 15 to rotate. The rotating rod 15 moves the moving plate 7, which in turn moves the sliding plate 4. The sliding plate 4 moves the moving shaft 5, which in turn moves the striking rod 6. Simultaneously, the sliding plate 4 compresses the spring 8. When the outer surface of the rotating rod 15 is no longer in contact with the outer surface of the moving plate 7, the spring 8 is compressed. When the force disappears, the elastic force of the spring 8 will drive the slide plate 4 to move, and the slide plate 4 will drive the tapping rod 6 to move. The outer surface of the tapping rod 6 will tap the outer surface of the watermelon, thus producing a tapping sound. The tapping sound will be transmitted to the sound wave sensor 17. By analyzing the tapping sound of the watermelon, the ripeness of the watermelon can be determined. By setting the motor 13 to drive the rotating rod 15 to rotate, the slide plate 4 will move. When the slide plate 4 moves, it will drive the tapping rod 6 to move and squeeze the spring 8. When the rotating rod 15 rotates to a certain extent, the squeezing force on the spring 8 will disappear, and the spring 8 will drive the tapping rod 6 to tap the outer surface of the watermelon. The tapping sound will be transmitted to the sound wave sensor 17. The ripeness of the watermelon can be determined by the tapping sound, thus ensuring the integrity of the watermelon peel and extending the shelf life of the watermelon.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel ripeness testing tool for watermelons, comprising a first fixing plate (1), characterized in that: The inner wall of the first fixed plate (1) has two sliding grooves (2), and the inner walls of the two sliding grooves (2) are slidably connected to sliders (3). The outer surfaces of the two sliders (3) are fixedly connected to a sliding plate (4). The inner wall of the sliding plate (4) is fixedly embedded with a moving shaft (5) at the center. One end of the moving shaft (5) is fixedly connected to a striking rod (6), and the outer surface of the sliding plate (4) is fixedly connected to a moving plate (7).

2. The novel ripeness tester for watermelons according to claim 1, characterized in that: The outer surface of the sliding plate (4) is slidably connected to the inner wall of the first fixed plate (1), and the outer surface of the moving plate (7) slides against the inner wall of the first fixed plate (1).

3. The novel ripeness tester for watermelons according to claim 1, characterized in that: A spring (8) is provided on one side of the outer surface of the slide plate (4). One end of the spring (8) is fixedly connected to the outer surface of the slide plate (4), and the other end of the spring (8) is fixedly connected to a cover plate (9).

4. A novel ripeness tester for watermelons according to claim 3, characterized in that: One outer surface of the cover plate (9) is fixedly connected to the outer surface of the first fixing plate (1), and a loudspeaker (10) is provided on the outer surface of the cover plate (9).

5. A novel ripeness tester for watermelons according to claim 3, characterized in that: A connecting plate (11) is fixedly connected to the outer surface of the other side of the cover plate (9), and a fixing box (12) is fixedly connected to one end of the connecting plate (11). A motor (13) is provided on the inner wall of the fixing box (12).

6. A novel ripeness tester for watermelons according to claim 5, characterized in that: The output end of the motor (13) is fixedly connected to an output shaft (14), and a rotating rod (15) is fixedly sleeved on the outer surface of the output shaft (14). The outer surface of the rotating rod (15) slides against the outer surface of the moving plate (7).

7. A novel ripeness tester for watermelons according to claim 1, characterized in that: A second fixing plate (16) is fixedly connected to the outer surface of the other side of the first fixing plate (1), and an acoustic sensor (17) is provided on the inner wall of the second fixing plate (16).

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