A grain hardness meter

Abstract

The utility model discloses a kind of grain hardness gauges, including base, the base top surface is fixedly connected with support frame at rear, the support frame front end is fixedly connected with mounting plate, the mounting plate surface is installed with hardness gauge body, the base top surface is installed with the object table of high low adjustable at hardness gauge body relative position, the hardness gauge body includes protective shell, iron plate, pressure sensor, circuit board and large screen display screen, installation cavity is opened in the protective shell, the iron plate for fixed installation is installed in the installation cavity, the iron plate surface is installed with battery at upper portion, the iron plate surface is installed with pressure sensor at lower portion, circuit board is set in the installation cavity at the front end of pressure sensor, and the circuit board and pressure sensor are electrically connected, large screen display screen is installed on the circuit board surface away from one end of pressure sensor, in combination with the above structure design, the problem proposed in background art is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of grain hardness testing technology, specifically a grain hardness meter. Background Technology

[0002] As a vital global agricultural resource, cereal quality testing plays a crucial role in agricultural production, processing, storage, and trade. Cereal hardness is a key indicator for evaluating cereal quality; its level not only affects processing performance (such as milling rate and grinding performance) but also closely relates to its edibility and nutritional composition. Therefore, accurate and rapid measurement of cereal hardness is essential for improving grain quality, guiding production, and promoting variety improvement.

[0003] Currently, grain hardness testers on the market present several inconveniences in use. Firstly, in terms of structural design, existing grain hardness testers often struggle to balance thinness and stability. Some grain hardness testers sacrifice structural stability in pursuit of thinness, leading to wobbling during measurement and affecting accuracy; while grain hardness testers prioritizing stability are often bulky, further increasing portability. Secondly, the display screens of existing grain hardness testers are typically small, hindering users from quickly and clearly reading measurement data. Thirdly, in terms of interfaces, most use proprietary interfaces, resulting in poor compatibility with general-purpose devices and causing inconvenience for charging and data transmission. Summary of the Invention

[0004] The purpose of this invention is to provide a grain hardness tester to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grain hardness tester, comprising a base, a support frame fixedly connected to the rear of the top surface of the base, an mounting plate fixedly connected to the front end of the support frame, a hardness tester body mounted on the surface of the mounting plate, and a height-adjustable stage mounted on the top surface of the base relative to the hardness tester body. The hardness tester body includes a protective shell, an iron plate, a pressure sensor, a circuit board, and a large-screen display. An installation cavity is provided inside the protective shell, and an iron plate for fixed installation is installed inside the installation cavity. A battery is mounted on the upper surface of the iron plate, and a pressure sensor is mounted on the lower surface of the iron plate. A circuit board is disposed in the installation cavity at the front end of the pressure sensor, and the circuit board is electrically connected to the pressure sensor. A large-screen display is mounted on the end of the circuit board away from the pressure sensor.

[0006] Preferably, the circuit board surface is equipped with multiple buttons located directly below the large screen display, the top of the protective housing surface is provided with a charging port for charging the battery, and the rear surface of the protective housing is provided with connection holes around the perimeter.

[0007] Preferably, a fixing hole is provided on the rear surface of the iron plate at a position opposite to the connecting hole.

[0008] Preferably, the platform includes a lowering block, a handwheel, and a screw. The handwheel is fixedly connected to the bottom of the lowering block, and a limiting plate is fixedly connected to the bottom of the screw.

[0009] Preferably, the top surface of the base has an adjustment hole located directly below the hardness tester body, and the adjustment hole is threadedly connected to the screw.

[0010] Preferably, the diameter of the limiting disc is larger than the diameter of the adjusting hole.

[0011] Preferably, the mounting plate has mounting holes on its surface at positions opposite to the connecting holes, and the mounting holes are connected to the connecting holes and fixing holes by bolts.

[0012] Preferably, the bottom surface of the protective housing has an opening, the detection end of the pressure sensor is provided with a detection rod extending outside the protective housing, and the outer wall of the detection rod is movably connected to the inner wall of the opening. An upper pressure block is fixedly connected to the bottom surface of the detection rod, and the upper pressure block is movably in contact with the top surface of the lower pressure block.

[0013] Preferably, a protective panel is fixedly installed on the front surface of the protective housing at a position opposite to the mounting cavity, a speaker is provided on the rear end face of the protective housing, and anti-slip grooves are provided on both sides of the outer wall of the protective housing.

[0014] Beneficial effects

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model securely fixes the hardness tester body through a stable connection between the base, support frame, and mounting plate, effectively avoiding accuracy deviations caused by shaking during measurement and ensuring structural stability. At the same time, the reasonable structural design avoids excessive weight, solving the problem that existing equipment either sacrifices stability in pursuit of thinness or is difficult to carry due to its weight, making it easy to carry and move, and applicable to a wider range of scenarios.

[0017] 2. This utility model adopts a large screen display, which, compared with the small screen of existing equipment, allows users to read measurement data more quickly and clearly, reducing the time cost and error of data reading and improving work efficiency.

[0018] 3. This utility model features a height-adjustable platform design, which allows for height adjustment of the lower pressure block through the combination of a handwheel and a screw. This adapts to the measurement needs of grains of different sizes, increasing the applicability of the equipment and enhancing its practicality.

[0019] 4. This utility model uses a protective housing that is connected to the mounting plate via connecting holes and fixing holes with bolts, ensuring a secure installation and facilitating disassembly and maintenance; the detection rod at the pressure sensor detection end works with the upper pressure block and the lower pressure block to perform measurements, resulting in a simple structure and convenient operation. Attached Figure Description

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

[0021] Figure 2 This is a schematic diagram of the cooperation structure between the base and the support frame of this utility model;

[0022] Figure 3 This is a schematic diagram of the platform structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the hardness tester body structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the protective shell of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the hardness tester body of this utility model.

[0026] The correspondence between the labels and component names in the attached figures is as follows:

[0027] 1. Base; 2. Support frame; 3. Hardness tester body; 4. Stage; 11. Adjustment hole; 21. Mounting plate;

[0028] 22. Mounting hole; 31. Protective housing; 32. Iron plate; 33. Battery; 34. Pressure sensor;

[0029] 35. Circuit board; 36. Large screen display; 37. Button; 41. Pressing block; 42. Handwheel; 43. Screw;

[0030] 44. Limiting plate; 311. Mounting cavity; 312. Connecting hole; 313. Speaker outlet; 314. Protective panel;

[0031] 315. Charging port; 316. Anti-slip groove; 317. Movable opening; 321. Fixing hole; 341. Detection rod;

[0032] 342. Upper pressure block. Detailed Implementation

[0033] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] like Figure 1-6 This is a schematic diagram of a preferred embodiment of a grain hardness tester. In this embodiment, the grain hardness tester includes a base 1, which serves as the basic support component of the entire device. Its top surface is fixedly connected to a support frame 2 at the rear, providing stable support for the upper structure. An adjustment hole 11 is provided on the top surface of the base 1 directly below the hardness tester body 3. The inner wall of the adjustment hole 11 is threaded and threadedly connected to the screw 43 of the platform 4, thereby adjusting the height of the platform 4 through the threaded engagement.

[0036] In this embodiment, a mounting plate 21 is fixedly connected to the front end of the support frame 2. The surface of the mounting plate 21 has a mounting hole 22 at the position opposite to the connection hole 312. The mounting hole 22 is connected to the connection hole 312 at the rear end of the protective shell 31 and the fixing hole 321 of the iron plate 32 by bolts, so as to firmly install the hardness tester body 3 on the support frame 2, ensuring the stability of the hardness tester body 3 during the measurement process and avoiding the impact of shaking on the measurement accuracy.

[0037] In this embodiment, the hardness tester body 3 is the core component for hardness testing, including a protective housing 31, an iron plate 32, a battery 33, a pressure sensor 34, a circuit board 35, and a large-screen display 36. The protective housing 31 provides protection for the internal components and has an internal mounting cavity 311 to accommodate the various components. A protective panel 314 is fixedly mounted on the front surface of the protective housing 31 at a position opposite to the mounting cavity 311, further protecting the internal components such as the circuit board 35 and the large-screen display 36. A speaker 313 is provided on the rear end face for emitting alarm sounds. Anti-slip grooves 316 are provided on both sides of the outer wall to facilitate the operator's handheld use of the device. An opening 317 is provided on the bottom surface to provide space for the movement of the testing rod 341. A charging port 315 for charging the battery 33 is provided on the top surface, using a universal TYPE-C interface design to improve compatibility with external devices and facilitate charging. Connection holes 312 are provided around the rear end surface of the protective housing 31 for connecting to the mounting plate 21.

[0038] In this embodiment, an iron plate 32 for fixed installation is installed in the mounting cavity 311. A fixing hole 321 is opened on the rear surface of the iron plate 32 at the position opposite to the connecting hole 312, and it is fixed to the mounting plate 21 by bolts. A battery 33 is installed on the upper surface of the iron plate 32 to provide power support for the entire device, freeing it from the constraints of wired power supply and facilitating its use in different scenarios. A pressure sensor 34 is installed on the lower surface of the iron plate 32. The detection end of the pressure sensor 34 is provided with a detection rod 341 extending outside the protective housing 31. The outer wall of the detection rod 341 is movably connected to the inner wall of the movable opening 317, and can move up and down within the movable opening 317. An upper pressure block 342 is fixedly connected to the bottom surface of the detection rod 341. The upper pressure block 342 movably contacts the top surface of the lower pressure block 41, and the hardness of the grain is detected by the compression of the two.

[0039] In this embodiment, a circuit board 35 is disposed in the mounting cavity 311 at the front end of the pressure sensor 34. The circuit board 35 is electrically connected to the pressure sensor 34 and is used to receive and process the signals transmitted by the pressure sensor 34. A large screen display 36 is mounted on the end of the circuit board 35 away from the pressure sensor 34. Compared with the traditional small screen, it allows users to read measurement data more quickly and clearly and can display the measurement values ​​of 3 units simultaneously, reducing data reading errors and time costs. Multiple buttons 37 are mounted on the surface of the circuit board 35 directly below the large screen display 36. By operating the buttons 37, functions such as powering on / off, clearing data, and switching units can be realized.

[0040] In this embodiment, the stage 4 includes a lowering block 41, a handwheel 42, a screw 43, and a limiting plate 44. The lowering block 41 is used to place the grain to be tested, and a handwheel 42 is fixedly connected to its bottom. Rotating the handwheel 42 can drive the screw 43 to rotate. The screw 43 is fixedly connected to the bottom of the handwheel 42, and the screw 43 is threadedly connected to the adjustment hole 11 of the base 1. The height of the stage 4 is adjusted through threaded transmission to meet the measurement needs of grains of different sizes. The limiting plate 44 is fixedly connected to the bottom of the screw 43. The diameter of the limiting plate 44 is larger than the diameter of the adjustment hole 11, which can prevent the screw 43 from coming out of the adjustment hole 11 and ensure the normal operation of the equipment.

[0041] The working process of this utility model is as follows: In use, the grain to be tested is placed on the lower pressure block 41 of the stage 4. The handwheel 42 is turned to drive the screw 43, causing the stage 4 to rise until the grain contacts and is compressed by the upper pressure block 342 of the hardness tester body 3. At this time, the pressure sensor 34 senses the pressure signal through the detection rod 341 and transmits the signal to the circuit board 35. The circuit board 35 processes the signal and displays the measurement result on the large screen display 36. After the measurement is completed, the handwheel 42 is turned in the opposite direction to lower the stage 4, and the grain can be removed. If charging is required, the battery 33 can be charged through the charging port 315 on the top of the protective housing 31.

[0042] The above description provides a more detailed explanation of the present invention in conjunction with specific embodiments. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present invention.

Claims

1. A grain hardness tester, comprising a base (1), characterized in that: A support frame (2) is fixedly connected to the rear of the top surface of the base (1). A mounting plate (21) is fixedly connected to the front end of the support frame (2). The hardness tester body (3) is mounted on the surface of the mounting plate (21). An adjustable platform (4) is mounted on the top surface of the base (1) at a position opposite to the hardness tester body (3). The hardness tester body (3) includes a protective shell (31), an iron plate (32), a pressure sensor (34), a circuit board (35), and a large screen display (36). An installation device is provided inside the protective shell (31). The mounting cavity (311) contains an iron plate (32) for fixed installation. A battery (33) is installed on the upper surface of the iron plate (32), and a pressure sensor (34) is installed on the lower surface of the iron plate (32). A circuit board (35) is provided in the mounting cavity (311) at the front end of the pressure sensor (34), and the circuit board (35) is electrically connected to the pressure sensor (34). A large screen display (36) is installed on the end of the circuit board (35) away from the pressure sensor (34).

2. The grain hardness tester according to claim 1, characterized in that: The circuit board (35) has multiple buttons (37) installed on its surface directly below the large screen display (36). The top of the protective housing (31) has a charging port (315) for charging the battery (33). The rear surface of the protective housing (31) has connection holes (312) around its perimeter.

3. The grain hardness tester according to claim 1, characterized in that: The iron plate (32) has a fixing hole (321) on its rear end surface, which is located opposite to the connecting hole (312).

4. The grain hardness tester according to claim 1, characterized in that: The platform (4) includes a pressing block (41), a handwheel (42) and a screw (43). The bottom of the pressing block (41) is fixedly connected to the handwheel (42), and the bottom of the handwheel (42) is fixedly connected to the screw (43), which is fixedly connected to a limit plate (44).

5. A grain hardness tester according to claim 1, characterized in that: The top surface of the base (1) is provided with an adjustment hole (11) located directly below the hardness tester body (3), and the adjustment hole (11) is threadedly connected to the screw (43).

6. A grain hardness tester according to claim 4, characterized in that: The diameter of the limiting plate (44) is larger than the diameter of the adjusting hole (11).

7. A grain hardness tester according to claim 1, characterized in that: The mounting plate (21) has a mounting hole (22) on its surface opposite to the connecting hole (312), and the mounting hole (22) is connected to the connecting hole (312) and the fixing hole (321) by bolts.

8. A grain hardness tester according to claim 1, characterized in that: The bottom surface of the protective housing (31) is provided with an opening (317). The detection end of the pressure sensor (34) is provided with a detection rod (341) extending outside the protective housing (31). The outer wall of the detection rod (341) is movably connected to the inner wall of the opening (317). An upper pressure block (342) is fixedly connected to the bottom surface of the detection rod (341), and the upper pressure block (342) is movably in contact with the top surface of the lower pressure block (41).

9. A grain hardness tester according to claim 8, characterized in that: The protective housing (31) has a protective panel (314) fixedly installed on the front surface of the protective housing (31) at a position opposite to the mounting cavity (311). The rear end face of the protective housing (31) has a speaker (313), and the outer walls of the protective housing (31) have anti-slip grooves (316) on both sides.

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