Capillary viscometer with bubble level

Abstract

The capillary viscometer comprises a bottom table and a viscometer body, a fixed seat is installed on the upper end face of the bottom table, a fixed cavity is installed on the end face of the front side of the fixed seat, an adjusting lead screw is rotatably installed on the end face of the left side in the fixed cavity through a bearing, and first sliding blocks are in threaded connection with the outer side wall of the adjusting lead screw in a bilateral symmetry mode; an outer ring sleeve is installed on the front side end face of the first sliding block through a connecting frame, an outer rod is installed at the outer side end of the outer ring sleeve in a sliding fit mode, a viscometer body is installed at the outer side end of the outer rod, an inner pressing plate is installed at the inner side end of the outer ring sleeve, and a gradienter body is arranged at the inner side end of the inner pressing plate. According to the viscometer, the adjusting lead screw and the inner pressing plate are adopted, so that when a single viscometer body or the gradienter body is damaged, the gradienter body can be conveniently disassembled, and material waste caused by inconvenient disassembly due to fixed connection of the device is avoided.

Description

Technical Field

[0001] The utility model relates to the field of viscometers, and particularly relates to a capillary viscometer with a bubble level. Background Technique

[0002] When measuring the viscosity of Newtonian fluids such as polymer solutions, an Ubbelohde viscometer is commonly used. According to the regulations in GB / T 10247-2008, when measuring the viscosity of a liquid with an Ubbelohde viscometer, the side tube needs to be sealed, the main tube is connected to a pumping device, the liquid is sucked to about 5 mm above the upper calibration line of the timing bulb, the main tube and the side tube are connected to the atmosphere, the liquid flows down naturally, the time for the lowest point of the meniscus of the sample to pass through the upper and lower calibration lines of the timing bulb is measured, without reinstalling the sample, the flow times of two repeated measurements are taken, and the average value is taken. The difference between the two measured flow times should not be greater than 0.2% (precision type) and 0.5% (industrial type) of the average value. When the Ubbelohde viscometer is in an unused state, since the main and side tube orifices are both vertically upward, pollutants can easily enter the viscometer without taking measures.

[0003] Chinese Patent discloses an Ubbelohde viscometer (authorized announcement number CN 206696129 U), and this patented technology can solve problems such as always preventing pollutants from entering the Ubbelohde viscometer, facilitating measurement operations, reducing experimental errors caused by operating factors, and thus improving measurement accuracy and precision.

[0004] Existing viscometers mostly use a level for fixed installation detection to ensure their horizontal stability. When a single level or the viscometer is damaged, it is not convenient to disassemble and process them, resulting in waste of materials. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a capillary viscometer with a bubble level, which includes a base and a viscometer body. A fixing seat is installed on the upper end surface of the base. A fixing cavity is installed on the front side end surface of the fixing seat. The left side end surface in the fixing cavity is rotatably connected to an adjusting lead screw through a bearing. The outer side wall of the adjusting lead screw is symmetrically screwed with first sliders on the left and right. The front side end surface of the first slider is installed with an outer ring sleeve through a connecting frame. The outer side end of the outer ring sleeve is connected to an outer rod in a sliding fit manner. The viscometer body is assembled on the outer side end of the outer rod. An inner pressing plate is installed at the inner side end of the outer ring sleeve, and a level body is arranged at the inner side end of the inner pressing plate.

[0006] Furthermore, a handle is installed on the right side end surface of the adjusting lead screw. Slots are opened on the outer side wall of the handle, and a spring rod is installed on the front side end surface of the fixing seat.

[0007] Further, a plurality of pressure sensors are embedded along the circumferential direction of the inner end of the inner pressing plate, and the spirit level body is arranged at the inner end of the pressure sensors.

[0008] Further, a control panel is installed on the rear end face of the fixed seat, and the control panel is connected to the pressure sensors.

[0009] Further, the bottom of the fixed seat is connected to a half-ring sleeve through a chassis, and the inner end of the half-ring sleeve is clamped to the spirit level body through a first chuck.

[0010] Further, a buffer pad is installed on the upper end face of the base table, an arc-shaped groove is formed on the upper end face of the buffer pad, and the viscometer body is clamped in the arc-shaped groove. Compared with the prior art, the utility model has the following technical effects and advantages:

[0011] 1. In the utility model, an adjusting lead screw and an inner pressing plate structure are adopted. When a single viscometer body or spirit level body is damaged, it is convenient to disassemble the spirit level body, avoiding waste of materials caused by inconvenient disassembly due to fixed connection of the device.

[0012] 2. In the utility model, a pressure sensor and a control panel structure are adopted. When the spirit level body is inclined during installation, the values between the pressure sensors show a large difference, thus facilitating reminding the staff to make timely adjustments and further improving the installation stability of the device. Description of the Drawings

[0013] Figure 1 is the front view of a capillary viscometer structure with a bubble spirit level provided by an embodiment of the present application;

[0014] Figure 2 is the Figure 1 partial enlarged view of area A in a capillary viscometer with a bubble spirit level provided by an embodiment of the present application;

[0015] Figure 3 is the first left sectional view of a capillary viscometer with a bubble spirit level provided by an embodiment of the present application;

[0016] Figure 4 is the second left sectional view of a capillary viscometer with a bubble spirit level provided by an embodiment of the present application;

[0017] Figure 5 is the sectional top view of a capillary viscometer with a bubble spirit level provided by an embodiment of the present application;

[0018] In the figure: 1, bottom platform; 2, viscometer body; 11, fixing seat; 12, fixing cavity; 13, adjusting lead screw; 14, outer ring sleeve; 15, outer rod; 16, inner pressing plate; 17, spirit level body; 18, handle; 19, spring rod; 21, pressure sensor; 22, control panel; 23, semi-ring sleeve; 24, first chuck; 25, buffer pad. Detailed implementation manners

[0019] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners. The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0020] Please refer to Figures 1 to 5, in this embodiment, a capillary viscometer with a bubble level is provided, which includes a base 1 and a viscometer body 2. A fixing seat 11 is installed on the upper end surface of the base 1. A fixing cavity 12 is installed on the front side end surface of the fixing seat 11. The left side end surface in the fixing cavity 12 is rotatably connected to an adjusting lead screw 13 through a bearing. The outer side wall of the adjusting lead screw 13 is symmetrically screwed with first sliders on the left and right. The front side end surface of the first slider is installed with an outer ring sleeve 14 through a connecting frame. The outer side end of the outer ring sleeve 14 is connected to an outer rod 15 through a sliding fit. The viscometer body 2 is assembled at the outer side end of the outer rod 15. An inner pressing plate 16 is installed at the inner side end of the outer ring sleeve 14. A level body 17 is arranged at the inner side end of the inner pressing plate 16. A handle 18 is installed on the right side end surface of the adjusting lead screw 13. Slots are opened on the outer side wall of the handle 18. A spring rod 19 is installed on the front side end surface of the fixing seat 11. The left and right symmetric thread directions of the adjusting lead screw 13 are opposite. During operation, when a single viscometer body 2 or level body 17 is damaged, rotate the handle 18 to drive the adjusting lead screw 13 to rotate, so that the inner pressing plate 16 moves outward, facilitating the disassembly of the level body 17, and avoiding waste of materials caused by inconvenient disassembly due to the fixed connection of the device. The spring rod 19 plays a limiting role on the handle 18, thus preventing the adjusting lead screw 13 from rotating relatively. The level body 17 is a bubble level, so as to ensure that the viscometer body 2 is in a vertical state. Specifically, when installing the capillary viscometer, as long as the bubble ball in the bubble level is observed to be in the central position, it can ensure that the entire capillary viscometer is in a vertical state each time. In this way, the systematic error caused by the installation deviation of the capillary viscometer can be eliminated during measurement. The working principle of the viscometer body 2 is that the sample container (including the outflow capillary) is filled with the sample to be measured, placed in a constant temperature bath, and the liquid column height is h. Open the stopcock, and the sample starts to flow to the receiver, and at the same time, start timing until the sample liquid level reaches the scale line. The greater the viscosity of the sample, the longer this period of time. Therefore, this period of time directly reflects the viscosity of the sample.

[0021] A plurality of pressure sensors 21 are embedded along the circumferential direction at the inner side end of the inner pressing plate 16. The level body 17 is arranged at the inner side end of the pressure sensors 21. A control panel 22 is installed on the rear side end surface of the fixing seat 11. The control panel 22 is electrically connected to the pressure sensors 21. During operation, when the inner pressing plate 16 presses the level body 17 for positioning, the pressure sensors 21 are squeezed, and the values are transmitted to the control panel 22. A PLC program is written in the control panel 22 to control the operation of each device. When the level body 17 is tilted during installation, the values between the pressure sensors 21 show a large difference, thus facilitating the reminder for the staff to make adjustments in time.

[0022] A semi-circular sleeve 23 is installed at the bottom of the fixed base 11 through a chassis. The inner end of the semi-circular sleeve 23 is clamped with a spirit level body 17 through a first chuck 24. A buffer pad 25 is installed on the upper end surface of the base table 1. An arc-shaped groove is formed on the upper end surface of the buffer pad 25. A viscometer body 2 is installed in the arc-shaped groove by clamping. During operation, the semi-circular sleeve 23 supports and fixes the bottom of the spirit level body 17, further ensuring the stability of the device. The buffer pad 25 plays a role in shock absorption and protection for the viscometer body 2, preventing the glass material of the viscometer body 2 from cracking and being damaged. Exemplarily, the buffer pad 25 can be a cotton pad or a rubber pad, etc.

[0023] During specific operation, when a single viscometer body 2 or spirit level body 17 is damaged, turn the handle 18 to drive the adjusting lead screw 13 to rotate, so that the inner pressing plate 16 moves outwards, facilitating the disassembly of the spirit level body 17. This avoids waste of materials caused by inconvenient disassembly due to the fixed connection of the device. The spring rod 19 plays a limiting role on the handle 18, thus preventing the adjusting lead screw 13 from rotating relatively.

[0024] Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A capillary viscometer with a bubble level, characterized in that: include: A base (1) and a viscometer body (2), wherein a fixing seat (11) is installed on the upper end surface of the base (1), a fixing cavity (12) is installed on the front end surface of the fixing seat (11), the left end surface of the fixing cavity (12) is rotatably connected to an adjusting screw (13) through a bearing, a first slider is symmetrically screwed to the outer wall of the adjusting screw (13), an outer ring sleeve (14) is installed on the front end surface of the first slider through a connecting frame, the outer end of the outer ring sleeve (14) is connected to an outer rod (15) in a sliding fit, the viscometer body (2) is assembled on the outer end of the outer rod (15), an inner pressure plate (16) is installed on the inner end of the outer ring sleeve (14), and a level body (17) is arranged on the inner end of the inner pressure plate (16).

2. The capillary viscometer with bubble level according to claim 1, characterized in that A handle (18) is installed on the right end face of the adjusting screw (13), a slot is opened on the outer side wall of the handle (18), and a spring rod (19) is installed on the front end face of the fixing seat (11).

3. The capillary viscometer with bubble level according to claim 2, characterized in that: A plurality of pressure sensors (21) are embedded in the inner end of the inner pressure plate (16) along its circumferential direction, and the level body (17) is arranged at the inner end of the pressure sensor (21).

4. The capillary viscometer with bubble level according to claim 3, characterized in that: A control panel (22) is installed on the rear end surface of the fixing seat (11), and the control panel (22) is connected to the pressure sensor (21).

5. The capillary viscometer with bubble level according to claim 4, characterized in that: The bottom of the fixing seat (11) is connected to a half ring sleeve (23) through a base frame, and the inner side end of the half ring sleeve (23) is clamped to the level body (17) through a first clamp (24).

6. The capillary viscometer with bubble level according to claim 1, characterized in that: A buffer pad (25) is installed on the upper end surface of the base (1), and an arc-shaped groove is formed on the upper end surface of the buffer pad (25), and the viscometer body (2) is clamped in the arc-shaped groove.

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