Moisture activity testing device adopting mirror surface condensation method

Abstract

The invention discloses a water activity testing device for a mirror condensation method, which comprises a main body, a control panel is fixedly mounted on one side surface of the main body, a groove is formed in one side surface of the main body, a cover body is rotatably mounted on one side surface of the main body, a detection position is fixedly mounted on one side surface of the groove, and the detection position is fixedly mounted on the other side surface of the groove. A cavity is formed below the detection position, a placement plate is fixedly mounted on the inner side surface of the detection position, a sliding groove is formed in the surface of one side of the placement plate, a first sliding block is slidably mounted on the inner side surface of the sliding groove, a clamping plate is fixedly mounted on the surface of one side of the first sliding block, and a connecting rod is rotatably mounted on the surface of one side of the first sliding block; a first motor is fixedly installed on the surface of one side of the cavity, a first lead screw is fixedly installed at the output end of the first motor, and a first sliding rod is fixedly installed on the surface of one side of the cavity. The device has the beneficial effects of being reasonable in structure, convenient to control and adjust and capable of improving the detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of water activity testing, in particular to a water activity testing device using a mirror condensation method. Background Art

[0002] The strict definition of water activity is: according to the law of equilibrium thermodynamics, at a certain temperature, the ratio of the vapor pressure p of water in a solution or water in food (as shown in Table 1) to the vapor pressure po of pure water at 25°C, that is, Aw = p / po. Water activity generally refers to a test method based on the ERH method to characterize the moisture content. This characterization method can directly reflect the moisture characteristics in many industrial and agricultural productions. Some developed countries have listed it as a food testing item. The activity test can almost determine the storage and shelf life of perishable and withered materials such as food, feed, fruit, and medicine. In recent years, many countries have stipulated that food water activity testing is a must-check indicator for quality.

[0003] However, the water activity testing device using the mirror condensation method in the prior art has certain shortcomings: when the existing water activity testing device tests the sample, it mainly adopts the method of cutting a groove on the placement table and then fixing the sample in the groove. This method can usually only perform fixed testing on samples of a specific size, and cannot perform fixed testing on samples of different sizes. When it is necessary to perform fixed testing on samples of different sizes, the placement table can only be continuously replaced, thereby increasing the production cost. In addition, most of the existing water activity testing devices only have one detection position, which makes the test more time-consuming when there are many samples. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing water activity testing device mainly adopts the method of cutting grooves on a placement table and then fixing the sample in the groove when testing the sample. This method can usually only perform fixed testing on samples of a specific size, and cannot perform fixed testing on samples of different sizes. When it is necessary to perform fixed testing on samples of different sizes, the placement table can only be continuously replaced, thereby increasing the production cost. In addition, most of the existing water activity testing devices only have one detection position, so when there are many samples, the test is more time-consuming. A water activity testing device using a mirror condensation method is proposed.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A water activity testing device using a mirror condensation method comprises a main body, a control panel is fixedly installed on one side surface of the main body, a groove is provided on one side surface of the main body, a cover is rotatably installed on one side surface of the main body, a detection position is fixedly installed on one side surface of the groove, a cavity is provided below the detection position, a placement plate is fixedly installed on the inner side surface of the detection position, a slide groove is provided on one side surface of the placement plate, a slider 1 is slidably installed on the inner side surface of the slide groove, a clamping plate is fixedly installed on one side surface of the slider 1, a connecting rod is rotatably installed on one side surface of the slider 1, a motor 1 is fixedly installed on one side surface of the cavity, a screw rod 1 is fixedly installed on the output end of the motor 1, a sliding rod 1 is fixedly installed on one side surface of the cavity, a slider 2 is slidably installed on the outer side surface of the sliding rod 1, a sliding rod 2 is fixedly installed on one side surface of the cover, a sliding rod 3 is slidably installed on the outer side surface of the sliding rod 2, a mirror is fixedly installed on one side surface of the slider 3, and an adjustment component is provided on one side surface of the slider 3.

[0007] As a preferred embodiment of the present invention, two detection positions are symmetrically arranged, the cavity is a cylindrical structure, the slider 1 forms a sliding adjustment structure through a sliding groove, the clamping plate is an arc structure, and the clamping plate forms a sliding adjustment structure through the slider 1.

[0008] As a preferred embodiment of the present invention, four sliding rods 1 are fixedly installed in a single cavity, a single slider 2 is slidably installed on the outside of the four sliding rods 1, and the end of the connecting rod away from slider 1 is rotatably installed on a side surface of slider 2.

[0009] As a preferred embodiment of the present invention, the screw rod 1 forms a rotation adjustment structure through a motor 1, and the end of the screw rod 1 away from the motor 1 is rotatably installed on a side surface of the placement plate. The screw rod 1 passes through a slider 2, and the screw rod 1 and the slider 2 are threadedly connected.

[0010] As a preferred embodiment of the present invention, two sliding rods 2 are symmetrically arranged, and the slider 3 is slidably installed on the outer surfaces of the two sliding rods 2. The mirror surface forms a sliding adjustment structure through the slider 3. The adjustment component includes a motor 2, and a screw rod 2 is fixedly installed on the output end of the motor 2. The screw rod 2 forms a rotation adjustment structure through the motor 2, and the screw rod 2 and the slider 3 are threadedly connected.

[0011] As a preferred embodiment of the present invention, a rack is fixedly installed on one side surface of the slider three, a rotating shaft one is rotatably installed on one side surface of the cover body, a gear is fixedly installed on the outer surface of the rotating shaft one, a turntable one is fixedly installed on one end of the rotating shaft one, a bracket is fixedly installed on one side surface of the cover body, and the rotating shaft one and the bracket are rotatably connected.

[0012] As a preferred embodiment of the present invention, a rotating shaft 2 is rotatably installed on one side surface of the bracket, a scraper is fixedly installed on one end of the rotating shaft 2, a turntable 2 is fixedly installed on the end of the rotating shaft 2 away from the scraper, and a belt is connected between the turntables 1 and 2.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up a motor 1, the motor 1 can drive the screw rod 1 to rotate, and the screw rod 1 can drive the slider 2 threadedly connected thereto to slide up and down on the surface of the sliding rod 1. Under the action of the connecting rod, the up and down sliding adjustment of the slider 2 can drive the slider 1 to slide in the slide groove, so that the slider 1 drives the clamping plate to slide, so that the clamping plate can clamp and fix the sample, and the adjustment is relatively simple. Samples of different sizes can also be fixed and clamped, which is convenient for detection;

[0015] 2. By setting up motor 2, motor 2 can drive screw rod 2 to rotate, and screw rod 2 can drive slider 3 threadedly connected thereto to slide and adjust on the surface of sliding rod 2, so that slider 3 drives the mirror to slide and adjust, so that the mirror can be moved to the top of any detection position, so that when the detection of a sample at one place is completed, the mirror can be moved to the top of another detection position by controlling motor 2, so as to realize the detection of another sample and speed up the detection efficiency. At the same time, the movement of slider 3 can drive the movement and adjustment of the rack, so that the rack drives the gear meshing with it to rotate, and under the action of shaft 1, it can drive turntable 1 to rotate, so that under the action of belt, turntable 1 can drive turntable 2 to rotate, so that turntable 2 can drive turntable 2 and scraper to rotate, so that when the mirror moves and passes through the scraper, the scraper can clean the mirror. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the left three-dimensional structure of the present invention;

[0019] Figure 3 It is a schematic diagram of a cross-sectional three-dimensional structure of the present invention;

[0020] Figure 4 For the present invention Figure 3 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0021] Figure 5 For the present invention Figure 2 The enlarged schematic diagram of the three-dimensional structure is shown at B in the middle.

[0022] In the figure: 1. main body; 2. control panel; 3. groove; 4. cover; 5. detection position; 6. cavity; 7. placement plate; 8. slide groove; 9. slider 1; 10. clamping plate; 11. connecting rod; 12. motor 1; 13. screw rod 1; 14. sliding rod 1; 15. slider 2; 16. sliding rod 2; 17. slider 3; 18. mirror; 19. motor 2; 20. screw rod 2; 21. rack; 22. shaft 1; 23. gear; 24. turntable 1; 25. bracket; 26. shaft 2; 27. scraper; 28. turntable 2; 29. ​​belt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0024] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more schemes or examples.

[0028] Example 1

[0029] See also Figure 1 - Figure 5 As shown, a water activity test device using a mirror condensation method comprises a main body 1, a control panel 2 is fixedly installed on one side surface of the main body 1, a groove 3 is provided on one side surface of the main body 1, a cover 4 is rotatably installed on one side surface of the main body 1, a detection position 5 is fixedly installed on one side surface of the groove 3, a cavity 6 is provided below the detection position 5, a placement plate 7 is fixedly installed on the inner side surface of the detection position 5, a slide groove 8 is provided on one side surface of the placement plate 7, a slider 9 is slidably installed on the inner side surface of the slide groove 8, and a clamping plate 10 is fixedly installed on one side surface of the slider 9 A connecting rod 11 is rotatably installed on one side surface of the slider 9, a motor 12 is fixedly installed on one side surface of the cavity 6, a screw 13 is fixedly installed on the output end of the motor 12, a sliding rod 14 is fixedly installed on one side surface of the cavity 6, a slider 2 15 is slidably installed on the outer surface of the sliding rod 14, a sliding rod 2 16 is fixedly installed on one side surface of the cover body 4, a slider 3 17 is slidably installed on the outer surface of the sliding rod 2 16, a mirror 18 is fixedly installed on one side surface of the slider 3 17, and an adjustment component is arranged on one side surface of the slider 3 17.

[0030] Example 2

[0031] See also Figure 1 - Figure 5As shown, two detection positions 5 are symmetrically arranged, the cavity 6 is a cylindrical structure, the slider 19 forms a sliding adjustment structure through the slide groove 8, the clamping plate 10 is an arc-shaped structure, and the clamping plate 10 forms a sliding adjustment structure through the slider 19. Four sliding rods 14 are fixedly installed in a single cavity 6, and a single slider 2 15 is slidably installed on the outside of the four sliding rods 14. The end of the connecting rod 11 away from the slider 19 is rotatably installed on the side surface of the slider 2 15. The screw rod 13 forms a rotating adjustment structure through the motor 12, and the end of the screw rod 13 away from the motor 12 is rotatably installed on the side surface of the placement plate 7. The screw rod 13 passes through the slider 2 15, and the screw rod 13 and the slider 2 15 are threadedly connected.

[0032] Example 3

[0033] See also Figure 1 - Figure 5 As shown, two sliding rods 16 are symmetrically arranged, and sliders 17 are slidably mounted on the outer surfaces of the two sliding rods 16. The mirror 18 forms a sliding adjustment structure through the sliders 17. The adjustment component includes a motor 19. The output end of the motor 19 is fixedly mounted with a screw rod 20. The screw rod 20 forms a rotation adjustment structure through the motor 19. The screw rod 20 is threadedly connected to the sliders 17. A rack 21 is fixedly mounted on one side surface of the sliders 17. The cover 4 is rotatably mounted on one side surface. There is a rotating shaft 22, a gear 23 is fixedly installed on the outer surface of the rotating shaft 22, a turntable 24 is fixedly installed on one end of the rotating shaft 22, a bracket 25 is fixedly installed on one side surface of the cover body 4, the rotating shaft 22 and the bracket 25 are rotatably connected, a rotating shaft 26 is rotatably installed on one side surface of the bracket 25, a scraper 27 is fixedly installed on one end of the rotating shaft 26, a turntable 28 is fixedly installed on the end of the rotating shaft 26 away from the scraper 27, and a belt 29 is connected between the turntable 24 and the turntable 28.

[0034] When the present invention is in use, a sample is placed on the surface of the placement plate 7, and the motor 12 is controlled so that the motor 12 drives the screw rod 13 to rotate, so that the screw rod 13 can drive the slider 2 15 threadedly connected thereto to slide up and down on the surface of the sliding rod 14, so that the slider 2 15 can drive the slider 1 9 to slide and adjust in the slide groove 8 under the action of the connecting rod 11, so that the slider 1 9 drives the clamping plate 10 to move and adjust, so that the clamping plate 10 can clamp and fix the sample. After the sample is clamped and fixed, the cover body 4 is closed, and the motor 2 19 is controlled so that the motor 2 19 drives the screw rod 20 to rotate and adjust, and the screw rod 20 can drive the slider 3 17 threadedly connected thereto to slide and adjust on the surface of the sliding rod 2 16, so that the slider 3 17 drives the mirror 18 to move and adjust, so that the mirror 18 moves to the top of a detection position 5. After the sample is detected, the motor 2 19 is controlled so that the motor 2 19 drives the screw rod 20 to rotate and adjust, and the screw rod 20 can drive the slider 3 17 threadedly connected thereto to slide and adjust on the surface of the sliding rod 2 16, so that the slider 3 17 drives the mirror 18 to move and adjust, so that the mirror 18 moves to the top of a detection position 5. The second machine 19 makes the motor 2 19 drive the screw rod 2 20 to rotate, and the screw rod 20 can drive the slider 3 17 to move and adjust, so that the slider 3 17 drives the mirror 18 to move above another detection position 5, so that the mirror 18 can detect a sample at another location, thereby improving the detection efficiency. While the slider 3 17 drives the mirror 18 to move, it can also drive the rack 21 to move and adjust, so that the rack 21 can drive the gear 23 meshing with it to rotate, so that the gear 23 can drive the turntable 1 24 to rotate under the action of the rotating shaft 1 22, so that the turntable 1 24 can drive the turntable 2 28 to rotate under the action of the belt 29, so that the turntable 2 28 can drive the scraper 27 to rotate under the action of the rotating shaft 26, so that when the mirror 18 moves past the scraper 27, the rotation of the scraper 27 can clean the surface of the mirror 18, thereby facilitating the next detection.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water activity testing device using a mirror condensation method, comprising a main body (1), characterized in that: A control panel (2) is fixedly mounted on one side surface of the main body (1); a groove (3) is provided on one side surface of the main body (1); a cover (4) is rotatably mounted on one side surface of the main body (1); a detection position (5) is fixedly mounted on one side surface of the groove (3); a cavity (6) is provided below the detection position (5); a placement plate (7) is fixedly mounted on the inner side surface of the detection position (5); a slide groove (8) is provided on one side surface of the placement plate (7); a slider (9) is slidably mounted on the inner side surface of the slide groove (8); a clamping plate (10) is fixedly mounted on one side surface of the slider (9); and a side of the slider (9) is provided with a plurality of slidable sliders. A connecting rod (11) is rotatably mounted on the surface; a motor (12) is fixedly mounted on one side surface of the cavity (6); a screw rod (13) is fixedly mounted on the output end of the motor (12); a sliding rod (14) is fixedly mounted on one side surface of the cavity (6); a sliding block (15) is slidably mounted on the outer surface of the sliding rod (14); a sliding rod (16) is fixedly mounted on one side surface of the cover body (4); a sliding block (17) is slidably mounted on the outer surface of the sliding rod (16); a mirror (18) is fixedly mounted on one side surface of the sliding block (17); and an adjustment component is arranged on one side surface of the sliding block (17).

2. The water activity testing device of the mirror condensation method according to claim 1, characterized in that: The detection positions (5) are symmetrically arranged with two each other. The cavity (6) is in a cylindrical structure. The slider (9) forms a sliding adjustment structure through a sliding groove (8). The clamping plate (10) is in an arc-shaped structure. The clamping plate (10) forms a sliding adjustment structure through the slider (9).

3. The water activity testing device of the mirror condensation method according to claim 2, characterized in that: Four sliding rods 1 (14) are fixedly installed in a single cavity (6), a single slider 2 (15) is slidably installed on the outside of the four sliding rods 1 (14), and an end of the connecting rod (11) away from the slider 1 (9) is rotatably installed on a side surface of the slider 2 (15).

4. The water activity testing device of the mirror condensation method according to claim 3, characterized in that: The screw rod 1 (13) forms a rotation adjustment structure through the motor 1 (12), and the end of the screw rod 1 (13) away from the motor 1 (12) is rotatably mounted on a side surface of the placement plate (7), and the screw rod 1 (13) passes through the slider 2 (15), and the screw rod 1 (13) and the slider 2 (15) are threadedly connected.

5. The water activity testing device of the mirror condensation method according to claim 4, characterized in that: The sliding rods (16) are symmetrically arranged in two numbers, the sliders (17) are slidably mounted on the outer surfaces of the two sliding rods (16), the mirror (18) forms a sliding adjustment structure through the sliders (17), the adjustment component comprises a motor (19), a screw rod (20) is fixedly mounted on the output end of the motor (19), the screw rod (20) forms a rotation adjustment structure through the motor (19), and the screw rod (20) is threadedly connected to the sliders (17).

6. The water activity testing device of the mirror condensation method according to claim 5, characterized in that: A rack (21) is fixedly mounted on one side surface of the slider (17); a rotating shaft (22) is rotatably mounted on one side surface of the cover (4); a gear (23) is fixedly mounted on the outer surface of the rotating shaft (22); a turntable (24) is fixedly mounted on one end of the rotating shaft (22); a bracket (25) is fixedly mounted on one side surface of the cover (4); and the rotating shaft (22) and the bracket (25) are rotatably connected.

7. The water activity testing device of the mirror condensation method according to claim 6, characterized in that: A second rotating shaft (26) is rotatably mounted on one side surface of the bracket (25); a scraper (27) is fixedly mounted on one end of the second rotating shaft (26); a second rotating disc (28) is fixedly mounted on the end of the second rotating shaft (26) away from the scraper (27); and a belt (29) is connected between the first rotating disc (24) and the second rotating disc (28).

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