A constant temperature water bath device for solvent determination in tobacco total alkaloids

Abstract

The utility model relates to a constant temperature water bath device, and in particular to a constant temperature water bath device for solvents in the determination of total alkaloids in tobacco. The technical scheme is as follows: A constant temperature water bath device for solvents in the determination of total alkaloids in tobacco, including a base, a water bath, a knob, a bidirectional screw and a limit rod I, etc. The top of the base is fixedly connected to a water bath, one side of the upper part of the water bath is fixedly connected to a limit rod I, the other side of the upper part of the water bath is rotatably connected to a bidirectional screw, the front end of the bidirectional screw is inserted out of the water bath, the front side of the bidirectional screw is fixedly connected to a knob, and a slide groove is symmetrically provided in the upper part of the water bath. The utility model is provided with an arc clamp, a bidirectional screw, a spring, a limit rod II and a knob, and the arc clamp is clamped and separated on the central beaker by rotating the knob clockwise and counterclockwise, so that beakers of different calibers can be fixed in a uniform position, which is convenient for people to heat the beaker in a water bath.

Description

Technical Field

[0001] The utility model relates to a constant temperature water bath device, in particular to a constant temperature water bath device for a solvent in the determination of total tobacco alkaloids. Background Art

[0002] At present, the tobacco industry's detection of total alkaloids is carried out according to the YCT-"Continuous Flow (Potassium Thiocyanate) Method for Determination of Total Alkaloids in Tobacco and Tobacco Products". In the process of total alkaloid analysis and detection, the dynamic change of the initial solvent temperature of the sodium dichloroisocyanurate (C3Cl2N3NaO3) solution directly affects the stability and accuracy of total alkaloid detection. Therefore, how to ensure the temperature stability of the initial solvent is extremely critical. In the analysis and detection of tobacco and tobacco products, total alkaloids are a particularly critical product monitoring indicator. In the process of tobacco processing, cigarette manufacturing and reconstituted tobacco leaf production, the content of total alkaloids directly affects the quality of tobacco raw materials and products in each link.

[0003] However, in the prior art, when the initial solvent is heated in a water bath to ensure the temperature, the test solution is first poured into a beaker and then heated in a water bath, which can effectively avoid excessive intensity and uncontrollable temperature caused by direct heating, and can better ensure the temperature stability of the initial solvent. However, in the existing constant temperature water bath heating device, the beaker is placed in the positioning hole, but the sizes of the beaker are 100ml, 150ml, 250ml and 500ml, and it is difficult to fix the beaker in the same position with the traditional constant temperature water bath device.

[0004] Therefore, we need to design a constant temperature water bath device for solvent determination in tobacco total alkaloids. Utility Model Content

[0005] In order to overcome the shortcoming that it is difficult to fix a beaker at a uniform position in an existing constant temperature water bath device, the utility model aims to provide a constant temperature water bath device for a solvent in the determination of total tobacco alkaloids.

[0006] The technical scheme is as follows: A constant temperature water bath device for solvent determination in tobacco total alkaloids, comprising a base, a water bath, a knob, a bidirectional screw, a movable plate, a slider, a limit rod I, a limit rod II, a spring, an arc-shaped clamping plate and a beaker, wherein the top of the base is fixedly connected to a water bath, one side of the upper part of the water bath is fixedly connected to a limit rod I, the other side of the upper part of the water bath is rotatably connected to a bidirectional screw, the front end of the bidirectional screw is inserted out of the water bath, the front side of the bidirectional screw is fixedly connected to a knob, a slide groove is symmetrically arranged on the upper part of the water bath, and a movable groove is symmetrically arranged between the limit rod I and the bidirectional screw. Plate, one end of the two moving plates are slidably connected to the limit rod I, the other ends of the two moving plates are threadedly connected to the bidirectional lead screw, both sides of the two moving plates are fixedly connected with sliders, the sliders are slidably connected to the inside of the slide groove, the two moving plates are inserted and slidably connected with two limit rods II, an arc-shaped clamping plate is fixedly connected between the two limit rods II, the arc-shaped clamping plate is located on the inner side of the two moving plates, two springs are arranged between the arc-shaped clamping plate and the moving plate on the same side, the springs are wrapped around the limit rod II on the moving plate, the beaker is located between the two arc-shaped clamping plates and is clamped and fixed by the arc-shaped clamping plates.

[0007] Optionally, it also includes supporting feet and anti-skid pads. The four positions of the bottom of the base are fixedly connected with supporting feet, and the bottom of the supporting feet is fixedly connected with anti-skid pads.

[0008] Optionally, a drain pipe and a solenoid valve are also included. The lower part of the base is fixedly connected with the drain pipe, and a solenoid valve is arranged inside the drain pipe.

[0009] Optionally, it also includes a temperature regulator, a temperature sensor I, a temperature sensor II, an electric push rod, a control panel and a connecting plate. The temperature regulator is fixedly connected to the bottom of the water bath, the temperature sensor I is fixedly connected to the lower part of the water bath, an electric push rod is provided on the upper rear side of the water bath, the top of the telescopic rod of the electric push rod is rotatably connected to the connecting plate, the temperature sensor II is fixedly connected to the front side of the bottom of the connecting plate, and a control panel is provided on the front side of the base, and the control panel is electrically connected to the temperature sensor I, the temperature sensor II and the electric push rod.

[0010] Optionally, threads in symmetrical directions are provided at both ends of the bidirectional lead screw.

[0011] Optionally, a rubber sliding pad is provided on the surface of the sliding block.

[0012] The beneficial effects of the utility model are as follows: 1. The utility model is provided with an arc clamping plate, a bidirectional screw rod, a spring, a limit rod II and a knob. By rotating the knob clockwise or counterclockwise, the arc clamping plate can clamp and separate the beaker in the center, so that beakers of different calibers can be fixed in the same position, which is convenient for people to heat the beaker in a water bath.

[0013] 2. The utility model is provided with a control panel, a temperature regulator, a temperature sensor I and a temperature sensor II. The water temperature inside the water bath is adjusted by the temperature regulator, and the temperature inside the water bath and the beaker are detected by the temperature sensor I and the temperature sensor II, thereby effectively ensuring the stability of the initial solvent.

[0014] 3. The utility model is provided with a drain pipe and a solenoid valve, and the water bath is drained through the solenoid valve, so that people can drain the water in the water bath more conveniently without having to pour out the water by tilting the device, which greatly improves people's use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a partial cross-sectional view of the water bath component of the utility model.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the knob, bidirectional screw rod, movable plate and other components of the utility model.

[0018] Figure 4 It is a cross-sectional view of the water bath and the drain pipe components of the utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the temperature sensor II, electric push rod, connecting plate and other components of the utility model.

[0020] Explanation of the reference numerals: 1: base, 2: support foot, 21: anti-slip pad, 3: control panel, 4: water bath, 41: slide, 5: drain pipe, 51: solenoid valve, 6: knob, 7: two-way screw rod, 8: moving plate, 81: slider, 9: limit rod I, 10: limit rod II, 11: spring, 12: arc splint, 13: beaker, 14: temperature regulator, 15: temperature sensor I, 16: temperature sensor II, 17: electric push rod, 171: connecting plate. DETAILED DESCRIPTION

[0021] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0022] Embodiment: A constant temperature water bath device for solvent determination in tobacco total alkaloids, such as Figure 1-Figure 5As shown, it includes a base 1, a water bath 4, a knob 6, a two-way screw 7, a movable plate 8, a slider 81, a limit rod Ⅰ9, a limit rod Ⅱ10, a spring 11, an arc clamp 12 and a beaker 13. A water bath 4 is installed on the top of the base 1. The limit rod Ⅰ9 is fixedly connected to the left upper part of the water bath 4. The two-way screw 7 is rotatably connected to the right upper part of the water bath 4. The front end of the two-way screw 7 is inserted through the water bath 4. The front side of the two-way screw 7 is fixedly connected to the knob 6. A slide groove 41 is symmetrically arranged on the upper part of the water bath 4. A movable plate 8 is symmetrically arranged front and back between the limit rod Ⅰ9 and the two-way screw 7. The left ends of the two movable plates 8 are both slidably connected to the limit rod Ⅰ9. The right ends of the two movable plates 8 are both threadedly connected to the two-way screw 7. The front and rear ends of the two-way screw 7 are provided with symmetrical direction threads, and then the knob 6 is rotated clockwise. , so that the two moving plates 8 are close to each other, and the left and right ends of the moving plate 8 are fixedly connected with sliders 81, and the sliders 81 are slidably connected to the inside of the slide groove 41. The surface of the slider 81 is provided with a rubber sliding pad, so that the slider 81 is prevented from sliding for a long time and being worn when sliding in the slide groove 41. The left and right parts of the moving plate 8 are respectively inserted and slidably connected with the limit rod Ⅱ10, and an arc-shaped clamping plate 12 is fixedly connected between the two limit rods Ⅱ10. The arc-shaped clamping plate 12 is located on the inner side of the two moving plates 8. Two springs 11 are provided between the arc-shaped clamping plate 12 and the moving plate 8 on the same side. The springs 11 are all wrapped around the limit rod Ⅱ10 on the moving plate 8. The beaker 13 is located between the two arc-shaped clamping plates 12 and is clamped and fixed by the arc-shaped clamping plates 12. The limit rods Ⅱ10 on the two moving plates 8 are symmetrically arranged to increase the stability of clamping the beaker.

[0023] like Figure 1 , Figure 4 and Figure 5 As shown, it also includes supporting feet 2 and anti-skid pads 21. The four positions of the bottom of the base 1 are fixedly connected with the supporting feet 2, and the bottom of the supporting feet 2 is fixedly connected with the anti-skid pads 21.

[0024] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it also includes a drain pipe 5 and a solenoid valve 51 . The drain pipe 5 is fixedly connected to the lower left side of the base 1 , and the solenoid valve 51 is arranged inside the drain pipe 5 .

[0025] like Figure 1 , Figure 2 and Figure 4As shown, it also includes a temperature regulator 14, a temperature sensor I 15, a temperature sensor II 16, an electric push rod 17, a control panel 3 and a connecting plate 171. The temperature regulator 14 is fixedly connected to the bottom of the water bath 4, and the temperature sensor I 15 is fixedly connected to the lower left part of the water bath 4. An electric push rod 17 is provided on the upper rear side of the water bath 4. The top of the telescopic rod of the electric push rod 17 is rotatably connected to the connecting plate 171, and the temperature sensor II 16 is fixedly connected to the front side of the bottom of the connecting plate 171. A control panel 3 is provided on the front side of the base 1, and the control panel 3 is electrically connected to the temperature sensor I 15, the temperature sensor II 16 and the electric push rod 17.

[0026] First, pour a certain amount of pure water into the water bath to ensure that the water in the device will not be dried up and the beaker 13 will not be heated evenly during heating. Then, turn on the power and start the electric push rod 17 until the bottom of the temperature sensor II 16 can be separated from the top of the water bath 4. Then, turn the connecting plate 171 so that the position of the connecting plate 171 does not affect the placement of the beaker 13 between the arc clamps 12. Then, select different types of beakers 13 according to the size of the initial solvent to ensure the temperature. Then, place the beaker 13 between the two arc clamps 12 with one hand. During this time, use the other hand to rotate the knob 6 clockwise, and the bidirectional screw rod 7 rotates together. Because the movable plate 8 and the bidirectional screw rod 7 are in reverse thread connection, the rotation of the bidirectional screw rod 7 will make the movable plates 8 approach each other. When the movable plates 8 approach each other, the two arc-shaped clamping plates 12 clamp the beaker 13, the springs 11 are compressed, and the front and rear symmetrical limit rods II 10 move to the side away from each other, the beaker 13 is fixed, and then the connecting plate 171 is rotated, and the electric push rod 17 is started to reset the temperature sensor II 16.

[0027] Then, the temperature regulator 14 is started through the control panel 3, and the water is heated so that the internal water reaches the set temperature. The internal water temperature is increased to transfer heat so that the temperature of the initial solvent reaches the set temperature range. When the water temperature is heated, the water temperature inside the water bath 4 can be detected by the temperature sensor Ⅰ15, and the temperature of the initial solvent can be detected by the temperature sensor Ⅱ16 at the bottom of the connecting plate 171. The water temperature is kept constant within a range through the temperature regulator 14, the temperature sensor Ⅰ15 and the temperature sensor Ⅱ16, so that the solvent in the beaker 13 at the center is kept constant. After the initial solvent is kept constant, the solenoid valve 51 can be opened and the water in the water bath 4 can be drained.

[0028] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A constant temperature water bath device for solvent determination in tobacco total alkaloids, characterized in that: The invention comprises a base (1), a water bath (4), a knob (6), a bidirectional screw rod (7), a movable plate (8), a slider (81), a limit rod I (9), a limit rod II (10), a spring (11), an arc-shaped clamping plate (12) and a beaker (13). The top of the base (1) is fixedly connected to the water bath (4). One side of the upper inner part of the water bath (4) is fixedly connected to the limit rod I (9). The other side of the upper inner part of the water bath (4) is rotatably connected to the bidirectional screw rod (7). The front end of the bidirectional screw rod (7) is inserted through the water bath (4). The front side of the bidirectional screw rod (7) is fixedly connected to the knob (6). A sliding groove (41) is symmetrically arranged at the upper inner part of the water bath (4). A movable plate (8) is symmetrically arranged between the limit rod I (9) and the bidirectional screw rod (7). One end of each of the two movable plates (8) is connected to the water bath (4). The limit rod I (9) is slidably connected, and the other ends of the two moving plates (8) are both threadedly connected to the bidirectional screw rod (7). Both sides of the two moving plates (8) are fixedly connected with sliders (81), and the sliders (81) are both slidably connected to the inside of the slide groove (41). Two limit rods II (10) are inserted and slidably connected on the two moving plates (8). An arc clamping plate (12) is fixedly connected between the two limit rods II (10). The arc clamping plate (12) is located on the inner side of the two moving plates (8). Two springs (11) are arranged between the arc clamping plate (12) and the moving plate (8) on the same side. The springs (11) are all wrapped around the limit rod II (10) on the moving plate (8). The beaker (13) is located between the two arc clamping plates (12) and is clamped and fixed by the arc clamping plates (12).

2. A constant temperature water bath device for solvent determination in tobacco total alkaloids according to claim 1, characterized in that: It also includes a support foot (2) and an anti-skid pad (21); the support foot (2) is fixedly connected to four positions of the bottom of the base (1); and the anti-skid pad (21) is fixedly connected to the bottom of the support foot (2).

3. A constant temperature water bath device for solvent determination in tobacco total alkaloids according to claim 2, characterized in that: It also includes a drainage pipe (5) and a solenoid valve (51); the lower part of the base (1) is fixedly connected with the drainage pipe (5), and the interior of the drainage pipe (5) is provided with a solenoid valve (51).

4. A constant temperature water bath device for solvent determination in tobacco total alkaloids according to claim 3, characterized in that: The water bath (4) further comprises a temperature regulator (14), a temperature sensor I (15), a temperature sensor II (16), an electric push rod (17), a control panel (3) and a connecting plate (171). The temperature regulator (14) is fixedly connected to the bottom of the water bath (4). The temperature sensor I (15) is fixedly connected to the lower part of the water bath (4). An electric push rod (17) is arranged on the upper rear side of the water bath (4). The top of the telescopic rod of the electric push rod (17) is rotatably connected to the connecting plate (171). The temperature sensor II (16) is fixedly connected to the front side of the bottom of the connecting plate (171). A control panel (3) is arranged on the front side of the base (1). The control panel (3) is electrically connected to the temperature sensor I (15), the temperature sensor II (16) and the electric push rod (17).

5. A constant temperature water bath device for solvent in determination of total tobacco alkaloids according to claim 4, characterized in that: The two ends of the bidirectional screw rod (7) are provided with threads in symmetrical directions.

6. A constant temperature water bath device for solvent in determination of total tobacco alkaloids according to claim 5, characterized in that: The surface of the slider (81) is provided with a rubber sliding pad.

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