Constant-temperature water tank convenient to observe for Ubbelohde viscometer

Abstract

The constant-temperature water tank comprises a base, a heating unit is arranged at the right end of the base, a limiting ring is fixedly connected to the right end of the upper side of the base, a water storage tank is movably sleeved with the limiting ring, the water storage tank is in contact with the surface of the upper side of the base, and the heating unit is arranged at the right end of the base. A water storage tank is arranged in the water tank, a cover plate is arranged at the upper end of the water storage tank, a stirring mechanism for uniformly heating a water bath in the water storage tank is arranged on the cover plate, and a lighting mechanism for conveniently observing a sample is arranged on the cover plate. The connecting shaft is used for driving the mounting sleeve and the stirring rod to rotate and stir the water bath in the water storage tank up and down, so that uniform temperature distribution in the water tank is ensured, the temperature gradient is reduced, and the stability of experimental conditions is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of constant temperature water bath technology, and specifically relates to a constant temperature water bath for Ubbelohde viscometers that is easy to observe. Background Technology

[0002] The Ubbelohde viscometer, also known as a liquid viscometer, is an instrument used to measure the viscosity of liquids and is widely used in industries such as chemical, petroleum, food, and pharmaceutical. Its basic principle is to utilize the flow characteristics of liquids under specific conditions and calculate viscosity by measuring the flow time. The constant-temperature water bath plays a crucial role in the Ubbelohde viscometer. Viscosity is a temperature-sensitive physical property; the viscosity of a liquid changes at different temperatures. Therefore, maintaining the stability of the statistical temperature is essential to obtain accurate and reliable viscosity measurements. Consequently, a constant-temperature water bath without stirring to ensure uniform temperature mixing has significant drawbacks. Without stirring, the temperature within the bath may create a temperature gradient due to delayed heat conduction. This temperature inhomogeneity causes the liquid being measured to be at different temperature states during the measurement process, affecting the liquid's flow characteristics and ultimately leading to deviations in the measurement results. Therefore, we aim to design a constant-temperature water bath for the Ubbelohde viscometer that is easy to observe, thereby solving this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a constant temperature water bath for Ubbelohde viscometer that is easy to observe, and to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a constant temperature water bath for an Ubbelohde viscometer that is easy to observe, comprising: a base, a heating unit provided at the right end of the base, a limiting ring fixedly connected to the right end of the upper side of the base, a water storage tank movably sleeved inside the limiting ring, the water storage tank contacting the upper surface of the base, a cover plate provided at the upper end of the water storage tank, a stirring mechanism provided on the cover plate for uniform heating of the water bath in the water storage tank, and an illumination mechanism provided on the cover plate for easy observation of the sample;

[0005] The stirring mechanism includes a connecting shaft, a connecting sleeve that is slidably sleeved on the outside of the connecting shaft, and an installation sleeve that is fixedly connected to the lower end of the connecting sleeve. The installation sleeve is slidably sleeved on the outside of the connecting shaft, and a stirring rod for stirring the water bath is fixedly connected to the installation sleeve. By setting up the stirring mechanism, the temperature distribution in the water bath is ensured to be uniform, the temperature gradient is reduced, and the experimental conditions are ensured to be stable.

[0006] In a preferred embodiment, the stirring mechanism further includes a stirring motor, which is fixedly installed on the upper side of the cover plate. The output shaft of the stirring motor passes through the interior of the cover plate and is connected to the connecting shaft through a bushing.

[0007] In a preferred embodiment, a connecting disc is sleeved on the outer side of the connecting sleeve via a bearing, and a multi-stage cylinder for pushing the connecting disc to move up and down is fixedly installed on the upper side of the cover plate. The telescopic end of the multi-stage cylinder is fixedly connected to the upper surface of the connecting disc. By setting up the multi-stage cylinder, the telescopic end of the multi-stage cylinder drives the connecting disc to move up and down, and the connecting disc then drives the mounting sleeve and the stirring rod to move up and down, thereby improving the uniformity of stirring and mixing.

[0008] In a preferred embodiment, the connecting shaft is a square structure used to drive the connecting sleeve to rotate.

[0009] In a preferred embodiment, the lighting mechanism includes a slide rail fixedly connected to the upper surface of the cover plate. A slider is slidably fitted onto the outer side of the slide rail, and a fixing screw is screwed into the inside of the slider. The fixing screw contacts the outer surface of the slide rail. By setting up the lighting mechanism, the visualization effect of the sample can be improved, making it clearer for operators to observe the liquid flow and facilitating the judgment of the liquid's viscosity characteristics.

[0010] In a preferred embodiment, a rubber pad is provided at the end of the fixing screw near the slide rail to increase the friction between the fixing screw and the outer surface of the slide rail.

[0011] In a preferred embodiment, the upper end of the slider is fixedly connected to one end of a connecting rod, and the other end of the connecting rod is provided with a lighting lamp for providing sufficient light.

[0012] In a preferred embodiment, the connecting rod is made of plastic and has internal metal wires for bending and shaping.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] 1. By setting up a stirring mechanism, the connecting shaft drives the mounting sleeve and stirring rod to rotate and stir the water bath in the water storage tank, ensuring uniform temperature distribution in the water tank, reducing temperature gradient, and ensuring the stability of experimental conditions.

[0015] 2. By setting up an illumination mechanism, the slider and connecting rod are used to move the illumination lamp. The position of the light source can be flexibly adjusted by moving the illumination, ensuring that the best visibility can be obtained in different positions, which is convenient for observing the sample state inside the water tank. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a left-side oblique view of the overall structure of a constant temperature water bath for an Ubbelohde viscometer, which is easy to observe according to this utility model.

[0018] Figure 2 This is an exploded view of the overall structure of a constant temperature water bath for an Ubbelohde viscometer that is easy to observe, according to this utility model.

[0019] Figure 3 This is a partial three-dimensional view of a constant temperature water bath for an Ubbelohde viscometer that is easy to observe, according to this utility model.

[0020] Figure 4 This invention provides a constant temperature water bath for an Ubbelohde viscometer that facilitates observation. Figure 3 Enlarged view of part A of the structure.

[0021] In the diagram, 1-base, 2-heating unit, 3-limiting ring, 4-water tank, 5-cover plate, 6-stirring mechanism, 7-lighting mechanism;

[0022] 61-Stirring motor, 62-Connecting shaft, 63-Connecting sleeve, 64-Mounting sleeve, 65-Stirring rod, 66-Connecting disc, 67-Multi-stage cylinder;

[0023] 71-Slide rail, 72-Slider, 73-Fixing screw, 74-Connecting rod, 75-Lighting lamp. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4This utility model provides a technical solution: a constant temperature water bath for an Ubbelohde viscometer that is easy to observe, comprising: a base 1, a heating unit 2 provided at the right end of the base 1, a limiting ring 3 fixedly connected to the upper side of the base 1 at the right end, a water storage tank 4 movably sleeved inside the limiting ring 3, the water storage tank 4 contacting the upper surface of the base 1, a cover plate 5 provided at the upper end of the water storage tank 4, a stirring mechanism 6 provided on the cover plate 5 for uniform heating of the water bath in the water storage tank 4, and an illumination mechanism 7 provided on the cover plate 5 for easy observation of the sample;

[0026] The stirring mechanism 6 includes a connecting shaft 62, a connecting sleeve 63 that is slidably sleeved on the outside of the connecting shaft 62, and an installation sleeve 64 that is fixedly connected to the lower end of the connecting sleeve 63. The installation sleeve 64 is slidably sleeved on the outside of the connecting shaft 62, and a stirring rod 65 for stirring the water bath is fixedly connected to the installation sleeve 64. By setting the stirring mechanism 6, the temperature distribution in the water bath is ensured to be uniform, the temperature gradient is reduced, and the experimental conditions are ensured to be stable.

[0027] The stirring mechanism 6 also includes a stirring motor 61, which is fixedly installed on the upper side of the cover plate 5. The output shaft of the stirring motor 61 passes through the interior of the cover plate 5 and is connected to the connecting shaft 62 through a bushing.

[0028] A connecting plate 66 is sleeved on the outside of the connecting sleeve 63 via a bearing. A multi-stage cylinder 67 for pushing the connecting plate 66 up and down is fixedly installed on the upper side of the cover plate 5. The telescopic end of the multi-stage cylinder 67 is fixedly connected to the upper surface of the connecting plate 66. By setting the multi-stage cylinder 67, the telescopic end of the multi-stage cylinder 67 drives the connecting plate 66 up and down, and the connecting plate 66 then drives the mounting sleeve 64 and the stirring rod 65 up and down, thereby improving the uniformity of stirring and mixing.

[0029] The connecting shaft 62 is a square structure used to drive the connecting sleeve 63 to rotate.

[0030] The lighting mechanism 7 includes a slide rail 71, which is fixedly connected to the upper surface of the cover plate 5. A slider 72 is slidably fitted on the outer side of the slide rail 71. A fixing screw 73 is screwed into the inside of the slider 72 through a thread. The fixing screw 73 contacts the outer surface of the slide rail 71. By setting up the lighting mechanism 7, the visualization effect of the sample can be improved, making it clearer for operators to observe the liquid flow and facilitating the judgment of the viscosity characteristics of the liquid.

[0031] A rubber pad is provided at one end of the fixing screw 73 near the slide rail 71 to increase the friction between the fixing screw 73 and the outer surface of the slide rail 71.

[0032] The upper end of the slider 72 is fixedly connected to one end of the connecting rod 74, and the other end of the connecting rod 74 is provided with a lighting lamp 75 for providing sufficient light.

[0033] The connecting rod 74 is made of plastic and has internal metal wires for bending and shaping.

[0034] Please see Figure 1 , Figure 2 as well as Figure 3 As the first embodiment of this utility model: In use, the stirring motor 61 is first started. The output shaft of the stirring motor 61 simultaneously drives the connecting shaft 62 to rotate. During the rotation of the connecting shaft 62, the connecting sleeve 63 and the mounting sleeve 64 rotate. The mounting sleeve 64 then drives the stirring rod 65, which is fixedly connected to it, to rotate and stir the water bath inside the water storage tank 4. At the same time, the multi-stage cylinder 67 is started. The telescopic end of the multi-stage cylinder 67 drives the connecting plate 66 to move up and down. While the connecting plate 66 moves up and down, it also drives the connecting sleeve 63 to move. The connecting sleeve 63 then drives the stirring rod 65 to move up and down, rotating and stirring the water bath at the same time, so as to ensure that the temperature distribution inside the water storage tank 4 is uniform, reduce the temperature gradient, and ensure the stability of the experimental conditions.

[0035] Please see Figure 1 , Figure 3 as well as Figure 4 As a second embodiment of this utility model: Based on the description in the above embodiments, when observing the sample, firstly, the fixed screw 73 can be rotated to separate it from the slide rail 71, and then the slider 72 can be adjusted to drive the lighting lamp 75 to move to obtain sufficient light source for observing the sample. At the same time, the angle of the lighting lamp 75 can be adjusted by bending the connecting rod 74 to further adjust the light source, so as to ensure that the best visibility can be obtained at different positions and angles, which is convenient for observing the sample state inside the water tank 4.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A constant temperature water bath for an Ubbelohde viscometer that facilitates observation, comprising: The base (1) is characterized in that a heating unit (2) is provided at the right end of the base (1), a limiting ring (3) is fixedly connected to the upper right end of the base (1), a water storage tank (4) is movably sleeved inside the limiting ring (3), the water storage tank (4) is in contact with the upper surface of the base (1), a cover plate (5) is provided at the upper end of the water storage tank (4), a stirring mechanism (6) is provided on the cover plate (5) for uniform heating of the water bath in the water storage tank (4), and an illumination mechanism (7) is provided on the cover plate (5) for easy observation of the sample. The stirring mechanism (6) includes a connecting shaft (62), a connecting sleeve (63) is slidably sleeved on the outside of the connecting shaft (62), an mounting sleeve (64) is fixedly connected to the lower end of the connecting sleeve (63), the mounting sleeve (64) is slidably sleeved on the outside of the connecting shaft (62), and a stirring rod (65) for stirring the water bath is fixedly connected on the mounting sleeve (64).

2. The constant temperature water bath for an Ubbelohde viscometer as described in claim 1, characterized in that: The stirring mechanism (6) also includes a stirring motor (61), which is fixedly installed on the upper side of the cover plate (5). The output shaft of the stirring motor (61) passes through the interior of the cover plate (5) and is connected to the connecting shaft (62) through a bushing.

3. The constant temperature water bath for an Ubbelohde viscometer as described in claim 1, characterized in that: The outer side of the connecting sleeve (63) is connected to the connecting disc (66) via a bearing sleeve. A multi-stage cylinder (67) for pushing the connecting disc (66) up and down is fixedly installed on the upper side of the cover plate (5). The telescopic end of the multi-stage cylinder (67) is fixedly connected to the upper surface of the connecting disc (66).

4. The constant temperature water bath for an Ubbelohde viscometer as described in claim 1, characterized in that: The connecting shaft (62) is a square structure used to drive the connecting sleeve (63) to rotate.

5. The constant temperature water bath for an Ubbelohde viscometer as described in claim 1, characterized in that: The lighting mechanism (7) includes a slide rail (71), which is fixedly connected to the upper surface of the cover plate (5). A slider (72) is slidably fitted on the outer side of the slide rail (71). A fixing screw (73) is screwed into the inside of the slider (72) by a thread. The fixing screw (73) is in contact with the outer surface of the slide rail (71).

6. The constant temperature water bath for an Ubbelohde viscometer as described in claim 5, characterized in that: The fixed screw (73) is provided with a rubber pad at one end near the slide rail (71) to increase the friction between the fixed screw (73) and the outer surface of the slide rail (71).

7. The constant temperature water bath for an Ubbelohde viscometer as described in claim 5, characterized in that: The upper end of the slider (72) is fixedly connected to one end of the connecting rod (74), and the other end of the connecting rod (74) is provided with a lighting lamp (75) for providing sufficient light.

8. The constant temperature water bath for an Ubbelohde viscometer as described in claim 7, characterized in that: The connecting rod (74) is made of plastic and has internal metal wires for bending and shaping.

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