Thermostatic bath heating and stirring control machine head for viscosity measurement

Abstract

The utility model provides a thermostatic bath heating and stirring control machine head for viscosity measurement, which comprises a shell, an electric heating tube, a stirring mechanism and a controller, the electric heating tube and the stirring mechanism are both vertically mounted at the bottom of the shell and are both electrically connected with the controller mounted on the shell; a stirring paddle at the lower end of the stirring mechanism is coaxially arranged on the inner side of the annular pipe body at the lower end of the electric heating pipe. The thermostatic bath heating and stirring control machine head for viscosity measurement integrates heating, stirring, liquid level sensing and temperature detection, and is reasonable in overall arrangement, compact and novel in structural design, simple to mount and dismount and flexible and convenient to use.

Description

Technical Field

[0001] The utility model relates to a heating and stirring device for a thermostat, in particular to a heating and stirring control head for a thermostat used for viscosity measurement. Background Art

[0002] The viscosity of a fluid refers to the scale of resistance to the flow of the fluid. That is, viscosity refers to the internal friction of the moving fluid. Mathematically, viscosity is expressed as the ratio of the frictional force in the tangential direction per unit area to the velocity gradient perpendicular to the flow direction of the fluid. A viscometer is an instrument used to measure the viscosity of a fluid. Currently, the commonly used viscometers are capillary viscometers, rotational viscometers, etc. When using a viscometer to measure the viscosity of a fluid, the fluid to be measured needs to be maintained in a temperature field that is thermally controlled, with uniform and constant temperature, to improve the accuracy of the measurement.

[0003] Currently, for the verification of viscometers, a thermostat is generally used to provide a constant temperature field to control the temperature of the fluid to be measured. However, the existing thermostats generally use independent stirrers, heaters, and controllers, which are respectively used to achieve the stirring, heating, and intelligent control of the fluid to be measured. The overall volume is large, the structure is complex, and the installation and disassembly are cumbersome, time-consuming and laborious. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: aiming at the defects of the prior art, to provide a heating and stirring control head for a thermostat used for viscosity measurement.

[0005] The utility model adopts the following technical solutions to solve the above technical problems:

[0006] A heating and stirring control head for a thermostat used for viscosity measurement, comprising a housing, an electric heating tube, a stirring mechanism, and a controller, wherein: the electric heating tube and the stirring mechanism are both vertically installed at the bottom of the housing, and are both electrically connected to the controller installed on the housing; the stirring paddle at the lower end of the stirring mechanism is coaxially arranged inside the annular tube at the lower end of the electric heating tube.

[0007] Preferably, the housing includes a base, a bottom shell, columns, a top plate, an outer shell, and a rear cover, wherein:

[0008] The base is a trough structure with an open top, and the L-shaped bottom shell is installed on its top;

[0009] Four columns arranged at the four corners are provided at the top of the bottom shell, and the top plate is provided at the top of the four columns;

[0010] The lower end of the rear cover is installed on both side walls of the bottom shell, and its front side and top can be connected to the outer shell.

[0011] More preferably, the base, the bottom shell, the column, the top plate, the outer shell and the rear cover are made of stainless steel or aluminum alloy, and are connected to each other by screws.

[0012] Preferably, the electric heating tube is a spiral heating tube, and the two connection ends at its upper end are electrically connected to the controller and are fixedly installed at the bottom of the shell by connecting pieces.

[0013] Preferably, the stirring mechanism includes a driving motor, a driving shaft and a stirring paddle, wherein:

[0014] The driving motor is fixedly installed on the bottom shell inside the shell, and the output shaft at its lower end is connected to the stirring paddle through the driving shaft.

[0015] Preferably, the stirring mechanism further includes a pump housing and equal-height columns, wherein:

[0016] The pump housing has a square outer and circular inner structure, and the stirring paddle is movably installed inside it, and the four corners of its top are respectively connected to the bottom shell through the vertically arranged equal-height columns.

[0017] Preferably, the stirring mechanism further includes a water inlet pipe and a drain pipe, wherein:

[0018] Both the water inlet pipe and the drain pipe are in an inverted L shape and are fixedly installed on the bottom shell; and the horizontal height of the lower end pipe orifice of the water inlet pipe is higher than the horizontal height of the lower end pipe orifice of the drain pipe.

[0019] Preferably, the viscosity measurement constant temperature bath heating and stirring control head further includes a liquid level sensor vertically installed at the bottom of the shell, wherein:

[0020] The liquid level sensor adopts a float type liquid level switch, and its lower end is located outside the electric heating tube.

[0021] Preferably, the viscosity measurement constant temperature bath heating and stirring control head further includes a temperature sensor vertically installed at the bottom of the shell, wherein:

[0022] The temperature sensor adopts an NTC temperature sensor, and the probe at its lower end is located above the electric heating tube.

[0023] Preferably, the controller includes a control board, a touch screen and a switch button electrically connected to the control board, wherein:

[0024] The control board is fixedly installed on the top plate inside the shell, the touch screen is installed on the shell at the front of the outer shell, and the switch button is installed on the back plate of the rear cover.

[0025] Adopting the above technical solutions, the utility model has the following technical effects compared with the prior art:

[0026] The heating and stirring control head for viscosity measurement provided by the present utility model integrates an electric heating pipe, a stirring mechanism, a liquid level sensor, a temperature sensor and a controller on a housing, and coaxially arranges the stirring paddle at the lower end of the stirring mechanism inside the annular tube at the lower end of the heating pipe, integrating heating, stirring, liquid level sensing and temperature detection. Its overall layout is reasonable, the structure design is compact and novel, the installation and disassembly are simple, and the use is flexible and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic three-dimensional structure diagram of a heating and stirring control head for a constant temperature bath for viscosity measurement according to the present utility model;

[0028] Figure 2 is a schematic cross-sectional structure diagram of a heating and stirring control head for a constant temperature bath for viscosity measurement according to the present utility model;

[0029] Figure 3 is a schematic internal structure diagram of a heating and stirring control head for a constant temperature bath for viscosity measurement according to the present utility model Figure 1 ;

[0030] Figure 4 is a schematic internal structure diagram of a heating and stirring control head for a constant temperature bath for viscosity measurement according to the present utility model Figure 2 ;

[0031] Figure 5 is an exploded structure schematic diagram of a heating and stirring control head for a constant temperature bath for viscosity measurement according to the present utility model Figure 1 ;

[0032] Figure 6 is an exploded structure schematic diagram of a heating and stirring control head for a constant temperature bath for viscosity measurement according to the present utility model Figure 2 。 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0034] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0035] In some embodiments, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown in the figure, a temperature-controlled bath heating and stirring control head for viscosity measurement is provided. The control head mainly includes a housing 100, an electric heating tube 200, a stirring mechanism 300, a liquid level sensor 400, a temperature sensor 500, and a controller 600. The electric heating tube 200, the stirring mechanism 300, the liquid level sensor 400, the temperature sensor 500, and the controller 600 are integrally installed on the housing 100 to form a compact integrated structure.

[0036] Specifically, the electric heating tube 200 and the stirring mechanism 300 are both vertically installed at the bottom of the housing 100 for insertion into the water bath of the temperature-controlled bath to heat and stir the water bath. The stirring paddle 303 at the lower end of the stirring mechanism 300 is coaxially arranged inside the annular tube at the lower end of the heating tube 200 to improve the heating rate of the water bath. The electric heating tube 200 and the stirring mechanism 300 are both electrically connected to the controller 600 installed on the housing 100, and the automatic control of the electric heating tube 200 and the stirring mechanism 300 is realized through the controller 600.

[0037] In some embodiments, such as Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the housing 100 includes a base 101, a bottom shell 102, columns 103, a top plate 104, an outer shell 105, and a rear cover 106. The base 101, the bottom shell 102, the columns 103, the top plate 104, the outer shell 105, and the rear cover 106 are made of stainless steel or aluminum alloy and are connected to each other by screws.

[0038] Specifically, the base 101 is a trough structure with an open top, and the L-shaped bottom shell 102 is installed on its top; four columns 103 arranged at the four corners are provided on the top of the bottom shell 102, and the top plate 104 is provided at the top of the four columns 103; the lower end of the rear cover 106 is installed on both side walls of the bottom shell 102, and its front side and top can be connected to the outer shell 105.

[0039] In some embodiments, such as Figure 1 , Figure 3 , Figure 5 and Figure 6 shown, to improve the heating efficiency of the temperature-controlled bath, the electric heating tube 200 adopts a spiral heating tube, and the two connection ends at its upper end are electrically connected to the controller 600 and are fixedly installed at the bottom of the housing 100 by a connecting piece 201.

[0040] In some embodiments, such as Figure 2 , Figure 5 and Figure 6As shown, the stirring mechanism 300 includes a driving motor 301, a driving shaft 302, and a stirring paddle 303. The driving motor 301 is fixedly installed on the bottom shell 102 inside the housing 100, and the output shaft at the lower end is connected to the upper end of the driving shaft 302 through a coupling. The lower end of the driving shaft 302 is connected to the stirring paddle 303. By starting the driving motor 301 through the controller 600, the stirring paddle 303 can be synchronously driven to rotate through the driving shaft 302, realizing the stirring and mixing of the water bath in the constant temperature tank, and ensuring that the water bath in the constant temperature tank is in a constant temperature field.

[0041] As Figure 2 , Figure 5 and Figure 6 shown, to ensure the stability of the installation structure of the stirring paddle 303, the stirring mechanism 300 further includes a pump housing 304 and equal-height columns 305. The pump housing 304 has a square outer and circular inner structure, and the stirring paddle 303 is movably installed inside it. The four corners of its top are respectively connected to the bottom shell 102 through the vertically arranged equal-height columns 305.

[0042] In addition, as Figure 4 and Figure 5 shown, the stirring mechanism 300 further includes a water inlet pipe 306 and a drain pipe 307. Both the water inlet pipe 306 and the drain pipe 307 are in an inverted L shape and are fixedly installed on the bottom shell 102; and the horizontal height of the lower end pipe orifice of the water inlet pipe 306 is higher than the horizontal height of the lower end pipe orifice of the drain pipe 307. The water inlet pipe 306 and the drain pipe 307 are externally connected to a water pump through hoses, and the water pump is electrically connected to the controller 600. By controlling the operation of the water pump through the controller 600, the amount of water in the constant temperature tank can be replenished or pumped out.

[0043] In some of the embodiments, as Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 shown, the control head further includes a liquid level sensor 400 and a temperature sensor 500 vertically installed at the bottom of the housing 100. The liquid level sensor 400 adopts a float type liquid level switch, and its lower end is located outside the electric heating tube 200. The temperature sensor 500 adopts an NTC temperature sensor, and the probe at its lower end is located above the electric heating tube 200.

[0044] In some of the embodiments, as Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the controller 600 mainly includes a control board 601, a touch screen 602, and a switch button 603. The touch screen 602 and the switch button 603 are electrically connected to the control board 601.

[0045] Specifically, the control board 601 is fixedly installed on the top plate 104 inside the housing 100. The touch screen 602 is installed in the mounting hole of the front housing of the outer shell 105. The switch button 603 is installed on the back plate of the rear cover 106 and is used to control the power on and off.

[0046] In summary, as Figures 1 to 6 shown, the constant temperature bath heating and stirring control head for viscosity measurement integrates the electric heating tube 200, the stirring mechanism 300, the liquid level sensor 400, the temperature sensor 500, and the controller 600 on the housing 100, and coaxially arranges the stirring paddle 303 at the lower end of the stirring mechanism 300 inside the annular tube at the lower end of the heating tube 200, so that the control head has functions of heating, stirring, liquid level sensing, and temperature detection in one body. Its overall layout is reasonable, the structural design is compact and novel, the installation and disassembly are simple, and the use is flexible and convenient.

[0047] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0048] Second, in the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0049] Finally, the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A constant temperature bath heating and stirring control head for viscosity measurement, characterized in that, It includes a housing, an electric heating tube, a stirring mechanism and a controller, wherein: the electric heating tube and the stirring mechanism are both vertically installed at the bottom of the housing, and are both electrically connected to the controller installed on the housing; the stirring paddle at the lower end of the stirring mechanism is coaxially arranged inside the annular tube at the lower end of the electric heating tube.

2. The constant temperature bath heating and stirring control head for viscosity measurement according to claim 1, characterized in that, The housing includes a base, a bottom shell, columns, a top plate, an outer shell and a rear cover, wherein: The base is a trough structure with an open top, and the bottom shell arranged in an L shape is installed on its top; Four columns arranged at the four corners are provided at the top of the bottom shell, and the top plate is provided at the top of the four columns; The lower end of the rear cover is installed on the two side walls of the bottom shell, and its front side and top can be connected to the outer shell.

3. The temperature-controlled bath heating and stirring control head for viscosity measurement according to claim 2, wherein, The base, the bottom shell, the columns, the top plate, the outer shell and the rear cover are made of stainless steel or aluminum alloy, and are connected to each other by screws.

4. The temperature-controlled bath heating and stirring control head for viscosity measurement according to claim 1, characterized in that, The electric heating tube is a spiral electric heating tube, and the two connection ends at its upper end are electrically connected to the controller, and are fixedly installed at the bottom of the housing by connecting pieces.

5. The constant temperature bath heating and stirring control head for viscosity measurement according to claim 1, characterized in that, The stirring mechanism includes a driving motor, a driving shaft and a stirring paddle, wherein: The driving motor is fixedly installed on the bottom shell inside the housing, and the output shaft at its lower end is connected to the stirring paddle through the driving shaft.

6. The constant temperature bath heating and stirring control head for viscosity measurement according to claim 5, characterized in that, The stirring mechanism further includes a pump housing and equal-height columns, wherein: The pump housing is a structure with a square outside and a round inside, and the stirring paddle is movably installed inside it, and the four corners of its top are respectively connected to the bottom shell through the vertically arranged equal-height columns.

7. The constant temperature bath heating and stirring control head for viscosity measurement according to claim 5, characterized in that, The stirring mechanism further includes a water inlet pipe and a drain pipe, wherein: The water inlet pipe and the drain pipe are both in an inverted L shape and are fixedly installed on the bottom shell; and the horizontal height of the lower end pipe orifice of the water inlet pipe is higher than the horizontal height of the lower end pipe orifice of the drain pipe.

8. The temperature-controlled bath heating and stirring control head for viscosity measurement according to claim 1, characterized in that, It further includes a liquid level sensor vertically installed at the bottom of the housing, wherein: The liquid level sensor is a float type liquid level switch, and its lower end is located outside the electric heating tube.

9. The constant temperature bath heating and stirring control head for viscosity measurement according to claim 8, characterized in that, It further includes a temperature sensor vertically installed at the bottom of the housing, wherein: The temperature sensor is an NTC temperature sensor, and the probe at its lower end is located above the electric heating tube.

10. The constant temperature bath heating and stirring control head for viscosity measurement according to claim 1, characterized in that, The controller includes a control board, a touch screen and a switch button electrically connected to the control board, wherein: The control board is fixedly installed on the top plate inside the housing, the touch screen is installed on the housing at the front of the outer shell, and the switch button is installed on the back plate of the rear cover.

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