An automatic oil smoke point tester

Abstract

The application relates to an automatic oil smoke point instrument, which comprises a machine body and a thermometer, the inside of the machine body is internally provided with a height adjusting mechanism for height adjustment of the thermometer, the height adjusting mechanism is provided with a clamping mechanism for clamping the thermometer, the thermometer is arranged on the clamping mechanism, the bottom of the inside of the machine body is provided with an automatic heating mechanism for heating of an oil sample, the automatic heating mechanism is arranged below the clamping mechanism, the inside of the machine body is provided with an illumination mechanism for work illumination, the machine body is provided with a control panel, and the control panel is electrically connected with the height adjusting mechanism, the clamping mechanism, the automatic heating mechanism and the illumination mechanism; the problem that due to the fact that the thermometer is fixed through an iron stand, personnel adjust the height of the thermometer by adjusting a knob of the iron stand to lower the thermometer into a sample to be measured, the iron stand is arranged at a deep position in the smoke point instrument, and the personnel cannot conveniently operate the knob of the iron stand when manually adjusting the knob, thereby affecting data measurement.

Description

Technical Field

[0001] This application relates to the technical field of grain and food testing equipment, and in particular to an automatic oil smoke point meter. Background Technology

[0002] Currently, the oil smoke point meter is a specialized instrument used to determine the smoke point of vegetable oils. It is suitable for departments that require the determination of the smoke point of vegetable oils, such as quality supervision, import and export inspection, oil processing, oil storage and transportation, food processing, scientific research, agricultural breeding, and schools.

[0003] In the prior art, the grease smoke point meter uses an iron stand to fix the thermometer. The operator adjusts the height of the thermometer by adjusting the knob on the iron stand and lowers it into the sample to be tested, thereby measuring the temperature of the grease sample during the heating process.

[0004] Regarding the aforementioned technologies, the problem arises because the thermometer is fixed on an iron stand, and personnel adjust the height of the thermometer by adjusting the knob on the iron stand to lower it into the sample. The iron stand is located deep inside the smoke point meter, making it inconvenient for personnel to manually adjust the knob, thus affecting data measurement. Summary of the Invention

[0005] To address the problem that manually adjusting the thermometer's height by adjusting a knob on the iron stand to lower it into the sample is inconvenient due to the iron stand being located deep inside the smoke point meter, thus affecting data measurement, this application provides an automatic grease smoke point meter.

[0006] This application provides an automatic grease smoke point meter, which adopts the following technical solution:

[0007] An automatic grease smoke point meter includes a body and a thermometer. The body has an internal height adjustment mechanism for adjusting the thermometer's height, and a clamping mechanism for holding the thermometer. The thermometer is mounted on the clamping mechanism. An automatic heating mechanism for heating grease samples is located at the bottom of the body, below the clamping mechanism. The body also has an internal lighting mechanism for illumination. A control panel is mounted on the body and is electrically connected to the height adjustment mechanism, clamping mechanism, automatic heating mechanism, and lighting mechanism.

[0008] By adopting the above technical solution, the height adjustment mechanism ensures that the thermometer probe can be accurately and repeatedly positioned above or immersed in the specified standard position of the oil sample, eliminating the positional error of the thermometer placed manually, which is a key factor affecting the accuracy of the smoke point reading. At the same time, the clamping mechanism firmly fixes the thermometer, preventing it from shifting or shaking during the test due to vibration, airflow or thermal convection, ensuring the stability of the probe position and more reliable readings. The illumination mechanism directly illuminates the oil sample and thermometer area in the test chamber, especially when the ambient light is insufficient or the machine body is well sealed, allowing clear observation of changes in the state of the oil (such as the generation of bubbles and the appearance of continuous blue smoke), which helps to more accurately and objectively determine the smoke point time. Through automation (especially automatic heating and height adjustment) and integrated design, the accuracy, reliability, repeatability, safety, ease of operation and efficiency of oil smoke point testing are significantly improved.

[0009] Preferably, the height adjustment mechanism includes a transmission box, a first driving member, a lead screw, and a moving block. The side of the transmission box near the inner wall of the machine body is connected to the machine body. The first driving member is disposed inside the transmission box. The bottom end of the lead screw is connected to the output end of the first driving member. The top end of the lead screw is rotatably connected to the transmission box. The moving block is threadedly connected to the lead screw. The side of the moving block near the clamping mechanism is connected to the clamping mechanism.

[0010] By adopting the above technical solution, the lead screw drive has extremely high transmission accuracy. Combined with the precise control of the first driving component (such as a stepper motor or servo motor), it can achieve fine and stepless adjustment of the thermometer height, completely avoiding visual deviation or uneven force caused by manual adjustment, ensuring that the thermometer probe is always in the standard position. At the same time, the self-locking characteristic of the lead screw moving block can automatically maintain the position after the drive stops, effectively resisting the displacement of the clamping mechanism caused by hot air flow, vibration or equipment operation during the test.

[0011] Preferably, the clamping mechanism includes a second driving member for adjusting the thermometer angle, a first U-shaped connecting plate, two cylinders and clamping blocks. One end of the second driving member is connected to the moving block, and the other end of the second driving member is connected to the first U-shaped connecting plate. The cylinders are disposed on the first U-shaped connecting plate, and the telescopic end of the cylinders is connected to the clamping blocks. The thermometer is located between the clamping blocks.

[0012] By adopting the above technical solution, the second driving component is linked with the height adjustment mechanism, which can programmatically realize complex spatial positioning trajectories (such as first vertically lowering the thermometer and then finely adjusting the tilt angle). The cylinder drives the clamping block to move, so as to stably clamp the thermometer. At the same time, it can be adjusted according to the size of the thermometer, which facilitates the replacement of the thermometer.

[0013] Preferably, the lighting mechanism includes a lamp for heating and illuminating the oil sample, an angle adjustment component for adjusting the angle of the lamp, and a limiting component for limiting the angle adjustment component. The angle adjustment component is disposed on the inner wall of the machine body, the lamp is disposed on the angle adjustment component, and the limiting component is disposed at the bottom of the angle adjustment component.

[0014] By adopting the above technical solution, the angle of the lighting lamp can be adjusted according to the user's needs, making it easier for the user to observe the working situation. At the same time, the limiting component limits and fixes the angle adjustment component after adjustment, preventing it from rotating, making the lighting lamp stable after adjustment, and preventing the lighting lamp from shaking.

[0015] Preferably, the angle adjustment assembly includes a second U-shaped connecting plate, a third driving member, a spur gear, and a half gear. The side of the second U-shaped connecting plate closest to the inner wall of the machine body is connected to the machine body. The third driving member is mounted on the second U-shaped connecting plate. The output end of the third driving member is connected to the spur gear. The surface of the spur gear meshes with the half gear. The half gear is rotatably connected to the second U-shaped connecting plate. The side of the half gear away from the spur gear is connected to the lighting lamp.

[0016] By adopting the above technical solution, the third driving component drives the spur gear to rotate, the spur gear drives the half gear to rotate, and the half gear drives the lighting lamp to rotate, thereby adjusting the angle of the lighting lamp so that the lighting position meets the user's needs.

[0017] Preferably, the limiting component includes a support plate, an electric telescopic component, and a locking block. The top end of the support plate is connected to a second U-shaped connecting plate. The electric telescopic component is disposed on the support plate, and the telescopic end of the electric telescopic component is connected to the locking block. The locking block is used in conjunction with a spur gear.

[0018] By adopting the above technical solution, the electric telescopic component drives the locking block to move, so that the locking block is locked onto the spur gear, thereby limiting the spur gear and fixing the half gear, thus fixing the lighting lamp and preventing the position of the lighting lamp from changing due to vibration or its own weight after adjustment.

[0019] Preferably, the top of the body has a placement hole for placing a thermometer, and the placement hole corresponds to the horizontal clamping center of the two clamping blocks.

[0020] By adopting the above technical solution and setting a placement hole, the thermometer is allowed to enter the machine body through the placement hole and be placed on the clamping mechanism, which makes it convenient for the user to pick up and put down the thermometer and prevents the user's hand from entering the machine body.

[0021] Preferably, the control panel is electrically connected to the first drive component, the second drive component, the cylinder, the third drive component, and the electric telescopic component.

[0022] By adopting the above technical solution, and by making the control panel electrically connected to the first drive component, the second drive component, the cylinder, the third drive component, and the electric telescopic component, the start-up of the first drive component, the second drive component, the cylinder, the third drive component, and the electric telescopic component can be controlled through the control panel, which is convenient for users to operate, saves time, and improves work efficiency.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The height adjustment mechanism ensures that the thermometer probe can be accurately and repeatedly positioned above or immersed in the specified standard position of the oil sample, eliminating the positional error of the thermometer placed manually. This is a key factor affecting the accuracy of the smoke point reading. At the same time, the clamping mechanism firmly fixes the thermometer, preventing it from shifting or shaking during the test due to vibration, airflow, or thermal convection, ensuring the stability of the probe position and more reliable readings. The illumination mechanism directly illuminates the oil sample and thermometer area in the test chamber. Especially when the ambient light is insufficient or the machine body is well sealed, the changes in the state of the oil (such as the generation of bubbles and the appearance of continuous blue smoke) can be clearly observed, which helps to determine the smoke point moment more accurately and objectively. Through automation (especially automatic heating and height adjustment) and integrated design, the accuracy, reliability, repeatability, safety, ease of operation, and efficiency of oil smoke point testing are significantly improved.

[0025] 2. The angle adjustment component allows for angle adjustment of the lighting fixture, enabling users to adjust the angle according to their needs and making it easier for them to observe the working conditions. At the same time, the limiting component limits and fixes the lighting fixture after adjustment, preventing it from rotating and ensuring the lighting fixture is stable after adjustment, thus preventing the lighting fixture from shaking.

[0026] 3. The second drive unit is linked with the height adjustment mechanism, which can programmably realize complex spatial positioning trajectories (such as first lowering the thermometer vertically and then fine-tuning the tilt angle). The cylinder drives the clamping block to move, so as to stably clamp the thermometer. At the same time, it can be adjusted according to the size of the thermometer, which facilitates the replacement of the thermometer. Attached Figure Description

[0027] Figure 1 This is a front-view stereoscopic view of an automatic grease and smoke point meter;

[0028] Figure 2 This is a frontal 3D view of an automatic grease smoke point meter;

[0029] Figure 3 This is a left-side sectional perspective of an automatic grease and smoke detector.

[0030] Figure 4 This is a frontal sectional perspective of an automatic grease smoke point meter;

[0031] Figure 5 This is a 3D diagram of the structure of the height adjustment mechanism and the clamping mechanism working together;

[0032] Figure 6 This is a three-dimensional structural diagram of the lighting mechanism;

[0033] Figure 7 yes Figure 6 A three-dimensional image viewed from below.

[0034] Reference numerals: 100, Body; 110, Placement hole; 200, Thermometer; 300, Height adjustment mechanism; 310, Transmission box; 320, First driving component; 330, Lead screw; 340, Moving block; 400, Clamping mechanism; 410, Second driving component; 420, First U-shaped connecting plate; 430, Cylinder; 440, Clamping block; 500, Automatic heating mechanism; 600, Lighting mechanism; 610, Lighting lamp; 620, Angle adjustment component; 621, Second U-shaped connecting plate; 622, Third driving component; 623, Spur gear; 624, Half gear; 630, Limiting component; 631, Support plate; 632, Electric telescopic component; 633, Locking block. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This application will be described in further detail.

[0036] This application discloses an automatic grease smoke point meter.

[0037] Reference Figure 1 , Figure 2 and Figure 3An automatic grease smoke point meter includes a body 100, a thermometer 200, a height adjustment mechanism 300 for adjusting the height of the thermometer 200, a clamping mechanism 400 for holding the thermometer 200, an automatic heating mechanism 500 for heating grease samples, a lighting mechanism 600 for working illumination, and a control panel 700. The height adjustment mechanism 300 is mounted on the inner wall of the body 100, the clamping mechanism 400 is mounted on the height adjustment mechanism 300, the thermometer 200 is located on the clamping mechanism 400, the automatic heating mechanism 500 is mounted at the bottom inside the body 100, directly below the clamping mechanism 400, and the automatic heating mechanism 500 uses resistance heating wire. The lighting mechanism 600 is mounted on the inner wall of the body 100, and the control panel 700 is mounted on the surface of the body 100. The control panel 700 is integrated with the height adjustment mechanism 300, the clamping mechanism 400, the automatic heating mechanism 500, and the lighting mechanism 600. The mechanism 600 is powered on; the height adjustment mechanism 300 ensures that the thermometer 200 probe can be accurately and repeatedly positioned above or immersed in the specified standard position of the grease sample, eliminating the positional error of the thermometer 200 placed manually, which is a key factor affecting the accuracy of the smoke point reading. At the same time, the clamping mechanism 400 firmly fixes the thermometer 200, preventing it from shifting or shaking during the test due to vibration, airflow or heat convection, ensuring the stability of the probe position and more reliable readings. The illumination mechanism 600 directly illuminates the grease sample and the area of ​​the thermometer 200 in the test chamber. Especially when the ambient light is insufficient or the body 100 is well sealed, the changes in the state of the grease (such as the generation of bubbles and the appearance of continuous blue smoke) can be clearly observed, which helps to determine the smoke point time more accurately and objectively. Through automation (especially automatic heating and height adjustment) and integrated design, the accuracy, reliability, repeatability, safety, ease of operation and efficiency of grease smoke point testing are significantly improved.

[0038] The top of the body 100 is provided with a placement hole 110 for placing the thermometer 200. The placement hole 110 corresponds to the horizontal clamping center of the two clamping blocks 440. By setting the placement hole 110, the thermometer 200 enters the body 100 through the placement hole 110 and is positioned on the clamping mechanism 400, which makes it convenient for the user to pick up and put down the thermometer 200 and prevents the user's hand from entering the body 100.

[0039] refer to Figure 3The height adjustment mechanism 300 includes a transmission box 310, a first driving member 320, a lead screw 330, and a moving block 340. The transmission box 310 is fixedly connected to the machine body 100 near its inner wall. The bottom end of the first driving member 320 is fixedly connected to the bottom end inside the transmission box 310. The output end of the first driving member 320 is fixedly connected to the bottom end of the lead screw 330. The top end of the lead screw 330 is rotatably connected to the transmission box 310. The moving block 340 is threadedly connected to the lead screw 330 and connected to the clamping mechanism 400 near its side. The first driving member 320 drives the lead screw 330 to rotate, and the lead screw 330 drives the moving block 340 to rotate. The moving block 340 moves, causing the clamping mechanism 400 to move up and down, thus changing the height of the thermometer 200. At the same time, the lead screw 330 has extremely high transmission accuracy. Combined with the precise control of the first driving component 320 (such as a stepper motor or servo motor), the height of the thermometer 200 can be adjusted finely and steplessly, completely avoiding visual deviations or uneven force caused by manual adjustment. This ensures that the thermometer 200 probe is always in the standard position. In addition, the self-locking characteristic of the lead screw 330 and the moving block 340 can automatically maintain the position after the drive stops, effectively resisting the displacement of the clamping mechanism 400 caused by hot airflow, vibration or equipment operation during the test.

[0040] refer to Figure 4 and Figure 5 The clamping mechanism 400 includes a second driving member 410 for adjusting the angle of the thermometer 200, a first U-shaped connecting plate 420, two cylinders 430, and a clamping block 440. One end of the second driving member 410 is fixedly connected to the moving block 340, and the other end of the second driving member 410 is fixedly connected to the first U-shaped connecting plate 420. The two cylinders 430 are installed on both sides of the first U-shaped connecting plate 420, and the telescopic ends of the cylinders 430 are fixedly connected to the clamping block 440. The temperature mechanism is located between the clamping blocks 440, and the clamping blocks 440 clamp and fix the thermometer 200. Through the linkage between the second driving member 410 and the height adjustment mechanism 300, complex spatial positioning trajectories can be programmed (such as first vertically lowering the thermometer 200 and then finely adjusting the tilt angle). Then, the cylinders 430 drive the clamping blocks 440 to move, so as to stably clamp the thermometer 200. At the same time, it can be adjusted according to the size of the thermometer 200, which facilitates the replacement of the thermometer 200.

[0041] refer to Figure 6 and Figure 7The lighting mechanism 600 includes a lamp 610 for heating and illuminating oil samples, an angle adjustment assembly 620 for adjusting the angle of the lamp 610, and a limiting assembly 630 for limiting the angle adjustment assembly 620. The height adjustment assembly 620 includes a second U-shaped connecting plate 621, a third driving member 622, a spur gear 623, and a half gear 624. The second U-shaped connecting plate 621 is mounted on the inner wall of the body 100. The third driving member 622 is mounted on one side of the second U-shaped connecting plate 621. The output end of the third driving member 622 is fixedly connected to the spur gear 623. The surface of the spur gear 623 meshes with the half gear 624. The half gear 624 is movably connected to the second U-shaped connecting plate. The end of the half gear 624 away from the spur gear 623 is fixedly connected to the lamp 610. The limiting assembly 630 includes a support plate 631, an electric telescopic member 632, and a locking block 63. 3. The top end of the support plate 631 is fixedly connected to the bottom end of the second U-shaped connecting plate 621. The electric telescopic component 632 is installed on the support plate 631. The output end of the electric telescopic component 632 is fixedly connected to the locking block 633. The locking block 633 works in conjunction with the spur gear 623. The third driving component 622 drives the spur gear 623 to rotate, which in turn drives the half gear 624 to rotate. The half gear 624 drives the lighting lamp 610 to rotate, thereby adjusting the angle of the lighting lamp 610 so that the lighting position of the lighting lamp 610 meets the user's needs. After adjustment, the electric telescopic component 632 drives the locking block 633 to move, so that the locking block 633 engages with the spur gear 623, limiting the spur gear 623, thereby limiting and fixing the half gear 624, thus fixing the lighting lamp 610 and preventing the position of the lighting lamp 610 from changing due to vibration or its own weight after adjustment.

[0042] The implementation principle of this embodiment is as follows: In implementation, the thermometer 200 is placed inside the machine body 100 through the placement hole 110. The cylinder 430 on the clamping mechanism 400 is activated, and the cylinder 430 drives the clamping block 440 to clamp and fix the thermometer 200. After fixing, the first driving member 320 is activated, which drives the lead screw 330 to rotate. The lead screw 330 drives the moving block 340 to move downward, so that the thermometer 200 is completely inserted into the machine body 100. The moving block 340 then drives the clamping mechanism 400 to continue to descend, so that the thermometer 200 comes into contact with the grease sample on the automatic heating mechanism 500. During the heating process by the automatic heating mechanism 500... As heating proceeds, observe the changes in the oil sample. When smoke begins to be produced, observe the thermometer 200 and record the temperature at this point, which is the smoke point of the oil. Simultaneously, during the heating process, the lighting mechanism 600 operates, and the third drive component 622 on the angle adjustment assembly 620 rotates, driving the spur gear 623 to rotate. The spur gear 623 drives the half gear 624 to rotate, and the half gear 624 drives the lighting lamp 610 to adjust its angle, making the lighting angle easier to view the thermometer 200. The limiting assembly 630 operates to limit and fix the angle adjustment assembly 620, thereby improving the accuracy, reliability, repeatability, safety, ease of operation, and efficiency of the oil smoke point test.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic grease smoke point meter, comprising a body (100) and a thermometer (200), characterized in that, The body (100) is provided with a height adjustment mechanism (300) for adjusting the height of the thermometer (200). The height adjustment mechanism (300) is provided with a clamping mechanism (400) for clamping the thermometer (200). The thermometer (200) is mounted on the clamping mechanism (400). The bottom of the body (100) is provided with an automatic heating mechanism (500) for heating oil samples. The automatic heating mechanism (500) is located below the clamping mechanism (400). The body (100) is provided with a lighting mechanism (600) for working illumination. The body (100) is provided with a control panel (700). The control panel (700) is electrically connected to the height adjustment mechanism (300), the clamping mechanism (400), the automatic heating mechanism (500), and the lighting mechanism (600).

2. The automatic grease smoke point meter according to claim 1, characterized in that, The height adjustment mechanism (300) includes a transmission box (310), a first driving member (320), a lead screw (330), and a moving block (340). The transmission box (310) is connected to the machine body (100) on the side near the inner wall of the machine body (100). The first driving member (320) is disposed inside the transmission box (310). The bottom end of the lead screw (330) is connected to the output end of the first driving member (320). The top end of the lead screw (330) is rotatably connected to the transmission box (310). The moving block (340) is threadedly connected to the lead screw (330). The side of the moving block (340) near the clamping mechanism (400) is connected to the clamping mechanism (400).

3. The automatic grease smoke point meter according to claim 1, characterized in that, The clamping mechanism (400) includes a second drive member (410) for adjusting the angle of the thermometer (200), a first U-shaped connecting plate (420), two cylinders (430) and a clamping block (440). One end of the second drive member (410) is connected to the moving block (340), and the other end of the second drive member (410) is connected to the first U-shaped connecting plate (420). The cylinders (430) are mounted on the first U-shaped connecting plate (420), and the telescopic end of the cylinders (430) is connected to the clamping block (440). The thermometer (200) is located between the clamping blocks (440).

4. The automatic grease smoke point meter according to claim 1, characterized in that, The lighting mechanism (600) includes a lighting lamp (610) for heating and illuminating oil samples, an angle adjustment component (620) for adjusting the angle of the lighting lamp (610), and a limiting component (630) for limiting the angle adjustment component (620). The angle adjustment component (620) is disposed on the inner wall of the body (100), the lighting lamp (610) is disposed on the angle adjustment component (620), and the limiting component (630) is disposed at the bottom of the angle adjustment component (620).

5. The automatic grease smoke point meter according to claim 4, characterized in that, The angle adjustment assembly (620) includes a second U-shaped connecting plate (621), a third driving member (622), a spur gear (623), and a half gear (624). The second U-shaped connecting plate (621) is connected to the machine body (100) on the side closest to the inner wall of the machine body (100). The third driving member (622) is mounted on the second U-shaped connecting plate (621). The output end of the third driving member (622) is connected to the spur gear (623). The surface of the spur gear (623) meshes with the half gear (624). The half gear (624) is rotatably connected to the second U-shaped connecting plate (621). The side of the half gear (624) away from the spur gear (623) is connected to the lighting lamp (610).

6. The automatic grease smoke point meter according to claim 5, characterized in that, The limiting component (630) includes a support plate (631), an electric telescopic component (632), and a locking block (633). The top end of the support plate (631) is connected to the second U-shaped connecting plate (621). The electric telescopic component (632) is disposed on the support plate (631). The telescopic end of the electric telescopic component (632) is connected to the locking block (633). The locking block (633) is used in conjunction with the spur gear (623).

7. The automatic grease smoke point meter according to claim 1, characterized in that, The top of the body (100) is provided with a placement hole (110) for placing a thermometer (200), and the placement hole (110) corresponds to the horizontal clamping center of the two clamping blocks (440).

8. The automatic grease smoke point meter according to claim 1, characterized in that, The control panel (700) is electrically connected to the first drive unit (320), the second drive unit (410), the cylinder (430), the third drive unit (622), and the electric telescopic unit (632).

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