Viscometer

Abstract

The utility model belongs to the technical field of measuring instruments, and discloses a viscometer which comprises a base, a viscometer main body, a constant-temperature water bath assembly and a lifting base, and the viscometer main body is suspended on the base; the constant-temperature water bath assembly comprises a water bath tank, a heating piece and a temperature measuring piece, the water bath tank is arranged below the viscometer main body, the heating piece is configured to heat the water bath tank, the temperature measuring piece is located above the water bath tank, and the heating piece is in communication connection with the temperature measuring piece; the lifting base is mounted on the base, is connected with the water bath and is configured to drive the water bath to lift. According to the viscometer, the temperature of the sample to be measured can be kept within the preset range, and the accuracy of viscosity measurement is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments, in particular to a viscometer. Background Art

[0002] Viscometers are widely used to measure the viscosities of various fluids such as oils, paints, foods, drugs, and cosmetics, and are measuring instruments for monitoring and controlling the stability of product quality in production. However, during actual measurement, the viscosity of the sample to be measured is greatly affected by the surrounding temperature, resulting in low measurement accuracy. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a viscometer that can control the temperature of the sample to be measured and improve the measurement accuracy of viscosity.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A viscometer, comprising a base, a viscometer main body, a constant temperature water bath assembly, and a lifting base. The viscometer main body is suspended on the base; the constant temperature water bath assembly includes a water bath tank, a heating element, and a temperature measuring element. The water bath tank is arranged below the viscometer main body. The heating element is configured to heat the water bath tank. The temperature measuring element is located above the water bath tank. The heating element is communicatively connected to the temperature measuring element; the lifting base is installed on the base and connected to the water bath tank, and is configured to drive the water bath tank to lift.

[0006] In one embodiment, the lifting base includes a limiting groove and a lifting bracket. The lifting bracket is placed in the limiting groove. The water bath tank is placed on the lifting bracket and is slidably connected to the limiting groove. The lifting bracket is configured to drive the water bath tank to lift.

[0007] In one embodiment, one of the limiting groove and the water bath tank is provided with a slider, and the other of the limiting groove and the water bath tank is provided with a sliding groove. The slider is slidably engaged with the sliding groove.

[0008] In one embodiment, the lifting bracket includes a first rectangular frame, a second rectangular frame, an adjusting block, and a screw. The first rectangular frame and the second rectangular frame are cross-hinged. One end of the screw is fixed to the first rectangular frame, and the other end passes through the adjusting block fixed to the second rectangular frame and penetrates out of the lifting base. The adjusting block is threadedly connected to the screw.

[0009] In one embodiment, the lifting bracket abuts against the bottom of the limiting groove. One end of the screw is fixed to the bottom end of the first rectangular frame, and the adjusting block is fixed to the bottom end of the second rectangular frame.

[0010] In one embodiment, the water bath tank is partitioned into a first tank body and a second tank body, and a rotating blade is rotatably arranged in the second tank body.

[0011] In one embodiment, the water bath tank is circular, and the first tank body and the second tank body are concentrically arranged from the inside to the outside.

[0012] In one embodiment, it further includes a translation assembly configured to drive the water bath tank to move, so that the water bath tank switches between a detection position and a cleaning position. When in the detection position, the viscometer main body and the temperature measuring member can be inserted into the liquid cup placed in the first tank body. When in the cleaning position, the viscometer main body can be inserted into the second tank body.

[0013] In one embodiment, water inlets and drain outlets are provided on both the first tank body and the second tank body.

[0014] In one embodiment, electric control valves are provided at both the water inlet and the drain outlet, and the water inlet is used to connect to an external water storage device.

[0015] Advantages of the present utility model: The viscometer of the present utility model uses a constant temperature water bath assembly to enable the liquid cup containing the liquid to be measured to always be maintained within a preset temperature range, improving the accuracy of the viscometer in measuring viscosity. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the viscometer in an embodiment of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the lifting base in an embodiment of the present utility model;

[0018] Figure 3 is a top view of the water bath tank in an embodiment of the present utility model.

[0019] In the figure:

[0020] 1, base; 2, support rod; 3, viscometer main body; 4, water bath tank; 41, first tank body; 42, second tank body; 43, rotating blade; 5, temperature measuring member; 6, lifting base; 61, limiting groove; 62, lifting bracket; 621, first rectangular frame; 622, second rectangular frame; 623, screw rod; 624, adjusting block; 7, translation assembly;

[0021] 10, liquid cup. Detailed Embodiments

[0022] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0023] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and to the right of", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and to the left of", and "under the bottom of" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0025] In the description of the present utility model, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, 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 thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0026] Reference Figures 1-3As shown in the figure, in an embodiment of the present utility model, a viscometer is proposed, which includes a base 1, a support rod 2, a viscometer main body 3, a constant temperature water bath assembly, and a lifting base 6. The viscometer main body 3 is suspended on the base 1 through the support rod 2. The viscometer main body 3 can adopt existing viscometer structures such as a rotational viscometer or a vibrating viscometer, and no specific limitation is made here. The constant temperature water bath assembly includes a water bath tank 4, a heating element, and a temperature measuring element 5. The water bath tank 4 is arranged below the viscometer main body 3. The heating element is configured to heat the water bath tank 4. The temperature measuring element 5 is suspended on the base 1 through the support rod 2 and is located above the water bath tank 4. The heating element is communicatively connected to the temperature measuring element 5. The lifting base 6 is installed on the base 1 and is connected to the water bath tank 4, and is configured to drive the water bath tank 4 to lift, so that the probe of the viscometer main body 3 and the temperature measuring element 5 extend into the water bath tank 4.

[0027] When using the above viscometer to measure the viscosity of a sample to be measured, the sample to be measured contained in the liquid cup 10 is placed in the water bath tank 4 filled with a heat-conducting medium (usually water). The water bath tank 4 rises under the action of the lifting base 6 until the probe of the viscometer main body 3 and the temperature measuring element 5 are both in contact with the sample to be measured. The heating element heats the heat-conducting medium in the water bath tank 4. During the heating process, the temperature measuring element 5 monitors the temperature of the sample to be measured in real time. When the preset temperature range is reached, the heating element stops heating. The viscometer main body 3 detects the viscosity of the sample to be measured. During the detection process, if the temperature measuring element 5 monitors that the temperature of the sample to be measured is lower than the preset temperature range, a feedback signal is sent to the heating element, and the heating element continues to heat the heat-conducting medium in the water bath tank 4, so that the temperature of the sample to be measured is always maintained within the preset temperature range, thereby improving the viscosity detection accuracy. The setting of the lifting base 6 can realize the automatic contact and separation of the viscometer main body 3 and the temperature measuring element 5 from the sample to be measured, which is convenient for replacing the sample to be measured.

[0028] In order to adjust the preset temperature range so that the constant temperature water bath assembly can adapt to different samples to be measured, in one embodiment, the viscometer further includes a control circuit board and an interactive display screen. The control circuit board is electrically connected to the interactive display screen, the temperature measuring element 5, and the heating element. The required preset temperature range can be adjusted through the interactive display screen and the actual temperature monitored by the temperature measuring element 5 can be displayed.

[0029] In one embodiment, the viscometer further includes an alarm connected to the control circuit board. The alarm can issue an alarm when the temperature measuring element 5 monitors an abnormal temperature. The alarm can be selected but not limited to include a sound alarm, an optoelectronic alarm, etc.

[0030] Reference Figure 2As shown, the lifting base 6 includes a limiting groove 61 and a lifting bracket 62. The limiting groove 61 is set as a groove-shaped structure with an open top. The lifting bracket 62 is placed in the limiting groove 61. The water bath 4 is placed on the lifting bracket 62 and is slidably connected to the limiting groove 61. The lifting bracket 62 is configured to drive the water bath 4 to rise and fall. Under the restriction of the limiting groove 61, the water bath 4 is not easy to shake during the lifting process of the lifting bracket 62, which can prevent the sample to be tested from overflowing the liquid cup 10, and at the same time prevent the sample to be tested from shaking to generate bubbles, which affects the detection accuracy.

[0031] In one embodiment, the water bath 4 achieves sliding cooperation with the limiting groove 61 through a slider and a slide groove that cooperate with each other. The slider is set on one of the water bath 4 and the limiting groove 61, and the slide groove is set on the other of the water bath 4 and the limiting groove 61.

[0032] Taking the slide groove being arranged on the inner wall of the limiting groove 61 as an example, in order to limit the sliding of the water bath 4 in the limiting groove 61 and prevent the water bath 4 from escaping from the limiting groove 61 , the slide groove is not connected to the upper end surface of the limiting groove 61 .

[0033] Continue to refer Figure 2 As shown, in one embodiment, the lifting bracket 62 adopts a scissor-type structure, including a first rectangular frame 621, a second rectangular frame 622, an adjustment block 624 and a screw 623. The first rectangular frame 621 and the second rectangular frame 622 are cross-hinged, one end of the screw 623 is fixed on the first rectangular frame 621, and the other end passes through the adjustment block 624 fixed on the second rectangular frame 622 in the horizontal direction and passes through the limit groove 61, and the adjustment block 624 is threadedly connected with the screw 623. When the screw 623 rotates, the adjustment block 624 can move on the screw 623 along the extension direction of the screw 623, thereby driving the second rectangular frame 622 to rotate relative to the first rectangular frame 621, and the height of the lifting bracket 62 changes, thereby realizing the adjustment of the height of the water bath 4.

[0034] Specifically, the first rectangular frame 621 and the second rectangular frame 622 are both in contact with the bottom of the limiting groove 61, and one end of the screw 623 is fixed to the bottom of the first rectangular frame 621, and the adjustment block 624 is fixed to the bottom of the second rectangular frame 622. In the process of the rotation of the screw 623, the height of the bottom of the first rectangular frame 621 and the bottom of the second rectangular frame 622 remains unchanged, and can always contact the bottom of the limiting groove 61 to improve the supporting force. More specifically, the first rectangular frame 621 and the second rectangular frame 622 are both composed of a plurality of connecting rods, and the connecting rods are cylindrical rods to reduce the wear of the bottom of the limiting groove 61 and the water bath 4 during the relative rotation of the first rectangular frame 621 and the second rectangular frame 622. In order to facilitate the application of force, a force application portion is also provided at one end of the screw 623 that passes through the limiting groove 61.

[0035] In other embodiments, the lifting bracket 62 can also be a hydraulic cylinder, an electric cylinder, etc.

[0036] After the test sample is detected, it needs to be cleaned, otherwise it will affect the detection accuracy of the next test sample. If manual cleaning is used, the cleaning efficiency is low. Especially for some production lines with high viscosity detection frequency, the detection efficiency will be seriously reduced. Based on this, referring to Figure 3 As shown, the water bath 4 is divided into a first tank 41 and a second tank 42. The first tank 41 is used to place the liquid cup 10 containing the test sample to be measured, and a rotating blade 43 is rotatably arranged in the second tank 42 for cleaning the probe of the viscometer main body 3. The rotating blade 43 can stir the liquid in the second tank 42 under the action of the driving member, so that the liquid in the second tank 42 is in full contact with the probe of the viscometer main body 3, realizing automatic cleaning.

[0037] In one embodiment, the driving member is a rotating motor and is connected to the control circuit board. The control circuit board can control the rotation speed of the rotating motor, thereby adjusting the speed of the rotating blade 43. A plurality of rotating blades 43 can be arranged in the second tank 42. For example, as Figure 3 shown, 3 are arranged.

[0038] It can be understood that during the cleaning process, the second tank 42 can be maintained at a relatively high temperature. In the case of a relatively high temperature, the effect of removing the test sample attached to the probe of the viscometer main body 3 is better. In one embodiment, the water bath 4 is circular, and the first tank 41 and the second tank 42 are concentrically arranged from the inside to the outside. When the rotating blade 43 rotates, it is more conducive to the liquid flow in the second tank 42. At this time, the heating member is a coiled pipe arranged in a vortex shape. The coiled pipe is arranged at the bottom of the water bath 4 and covers the positions of the first tank 41 and the second tank 42. In order to prevent the coiled pipe from contacting the lifting bracket 62, the coiled pipe is arranged in the interlayer at the bottom of the water bath 4.

[0039] Based on the setting that the water bath 4 is divided into the first tank 41 and the second tank 42, in order to enable the probe of the viscometer main body 3 fixed relative to the base 1 to enter the second tank 42, the viscometer further includes a translation assembly 7. The translation assembly 7 is configured to drive the water bath 4 to move horizontally, so that the water bath 4 switches between the detection position and the cleaning position. When in the detection position, the viscometer main body 3 and the temperature measuring member 5 can be inserted into the liquid cup 10 placed in the first tank 41. When in the cleaning position, the viscometer main body 3 can be inserted into the second tank 42.

[0040] In one embodiment, the translation assembly 7 uses a linear module. The linear module is installed on the base 1, and its output end is connected to the lifting base 6. The linear module belongs to the prior art and will not be elaborated here.

[0041] Of course, the temperature measuring component 5 can also be automatically cleaned in the second tank body 42 to prevent the residual sample to be measured on the temperature measuring component 5 from entering the next sample to be measured and affecting the detection accuracy. In one embodiment, the temperature measuring component 5 is a high-temperature resistant temperature sensor.

[0042] In the first tank body 41 and the second tank body 42, at least the second tank body 42 is provided with a drain port for discharging the sewage formed after cleaning the probe of the viscometer main body 3 and / or the temperature measuring component 5 from the second tank body 42. Specifically, the drain port is provided at the bottom of the second tank body 42. In one embodiment, drain ports are provided at the bottoms of both the first tank body 41 and the second tank body 42.

[0043] To achieve automatic drainage and water inlet, the first tank body 41 and the second tank body 42 are also provided with water inlet ports. Electric control valves are provided at both the water inlet ports and the drain ports, and the water inlet ports are connected to an external water storage device.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A viscometer, characterized in that include: Base (1); A viscometer body (3), wherein the viscometer body (3) is suspended on the base (1); A constant temperature water bath assembly, comprising a water bath (4), a heating element and a temperature measuring element (5), wherein the water bath (4) is arranged below the viscometer body (3), the heating element is configured to heat the water bath (4), the temperature measuring element (5) is located above the water bath (4), and the heating element is in communication connection with the temperature measuring element (5); A lifting base (6) is installed on the base (1) and connected to the water bath (4); the lifting base (6) is configured to drive the water bath (4) to move up and down.

2. The viscometer according to claim 1, characterized in that The lifting base (6) comprises a limiting groove (61) and a lifting bracket (62), wherein the lifting bracket (62) is placed in the limiting groove (61), and the water bath (4) is placed on the lifting bracket (62) and is slidably connected to the limiting groove (61), and the lifting bracket (62) is configured to drive the water bath (4) to rise and fall.

3. The viscometer according to claim 2, characterized in that A sliding block is provided on one of the limiting groove (61) and the water bath (4), and a sliding groove is provided on the other of the limiting groove (61) and the water bath (4), and the sliding block is slidably matched with the sliding groove.

4. The viscometer according to claim 2, characterized in that The lifting bracket (62) comprises a first rectangular frame (621), a second rectangular frame (622), an adjusting block (624) and a screw rod (623); the first rectangular frame (621) and the second rectangular frame (622) are cross-hinged; one end of the screw rod (623) is fixed to the first rectangular frame (621), and the other end passes through the adjusting block (624) fixed to the second rectangular frame (622) and passes out of the lifting base (6); the adjusting block (624) is threadedly connected to the screw rod (623).

5. The viscometer according to claim 4, characterized in that The lifting bracket (62) is in contact with the bottom of the limiting groove (61), one end of the screw rod (623) is fixed to the bottom end of the first rectangular frame (621), and the adjustment block (624) is fixed to the bottom end of the second rectangular frame (622).

6. The viscometer according to claim 1, characterized in that The water bath tank (4) is divided into a first tank body (41) and a second tank body (42), and a rotating blade (43) is rotatably arranged in the second tank body (42).

7. The viscometer according to claim 6, characterized in that The water bath (4) is arranged in a circular shape, and the first tank body (41) and the second tank body (42) are arranged concentrically from the inside to the outside.

8. The viscometer according to claim 6, characterized in that The apparatus further comprises a translation assembly (7), wherein the translation assembly (7) is configured to drive the water bath (4) to move horizontally so that the water bath (4) switches between a detection position and a cleaning position. When in the detection position, the viscometer body (3) and the temperature measuring element (5) can be inserted into a liquid cup (10) disposed in the first tank body (41); and when in the cleaning position, the viscometer body (3) can be inserted into the second tank body (42).

9. The viscometer according to claim 6, characterized in that The first tank body (41) and the second tank body (42) are both provided with a water inlet and a water outlet.

10. The viscometer according to claim 9, characterized in that The water inlet and the water outlet are both provided with electric control valves, and the water inlet is used to be connected to an external water storage device.

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