CN208060331U - A kind of coefficient of viscosity measurement experiment device - Google Patents

Abstract

An experimental device for measuring the viscosity coefficient of a liquid, comprising a base, a vertical plate is fixedly installed on the right side of the top surface of the base, an inverted T-shaped chute is provided on the left side of the vertical plate, and an inverted T-shaped slider is movably installed in the inverted T-shaped chute, The inverted T-shaped slider can slide up and down along the inverted T-shaped chute, and the left side of the inverted T-shaped slider is fixedly connected to the right side of the measuring cylinder; the left side of the top surface of the base is fixedly installed with a vertical rod, and the outer circumference of the vertical rod is set with two sleeves , the sleeve can move up and down along the vertical bar respectively, the left side of the sleeve is respectively provided with threaded through holes, the threaded through holes are respectively threaded to install bolts, the left side of the vertical bar is provided with bar-shaped chute, and the right ends of the bolts are respectively located in the bar-shaped slide In the slot and the bolts can slide up and down along the strip chute respectively. The utility model has the advantages of simple structure, convenient assembly and disassembly operations, convenient cleaning and convenient sensor position adjustment, which can meet market demand and is suitable for popularization.

Description

An experimental device for measuring liquid viscosity coefficient

technical field

The utility model belongs to the field of experimental testing devices, in particular to a liquid viscosity coefficient measuring experimental device.

Background technique

The viscosity coefficient of liquid, also known as the coefficient of internal friction or viscosity, is an important physical quantity describing the nature of internal friction of liquid. It characterizes the ability of liquid to resist deformation, and it is only manifested when there is relative motion in the liquid; research and measurement of liquid The viscosity coefficient is not only important in material science research, but also in engineering technology and other fields; but the existing liquid viscosity measurement devices are generally complex in structure, cumbersome to assemble and disassemble, and inconvenient to clean. For measuring cylinders with different calibers, it is difficult to adjust the position of the sensor, which cannot meet the actual needs. Therefore, we need to design a new experimental device for measuring the viscosity coefficient of liquid.

Utility model content

The utility model provides an experimental device for measuring liquid viscosity coefficient, which is used to solve the defects in the prior art.

The utility model is realized through the following technical solutions:

An experimental device for measuring the viscosity coefficient of a liquid, comprising a base, a vertical plate is fixedly installed on the right side of the top surface of the base, an inverted T-shaped chute is provided on the left side of the vertical plate, and an inverted T-shaped slider is movably installed in the inverted T-shaped chute, The inverted T-shaped slider can slide up and down along the inverted T-shaped chute, and the left side of the inverted T-shaped slider is fixedly connected to the right side of the measuring cylinder; the left side of the top surface of the base is fixedly installed with a vertical rod, and the outer circumference of the vertical rod is set with two sleeves , the sleeve can move up and down along the vertical bar respectively, the left side of the sleeve is respectively provided with threaded through holes, the threaded through holes are respectively threaded to install bolts, the left side of the vertical bar is provided with bar-shaped chute, and the right ends of the bolts are respectively located in the bar-shaped slide The bolts can slide up and down along the strip chute, the right side of the sleeve is fixedly connected to the left side of the inverted U-shaped frame, and the front and rear sides of the inverted U-shaped frame are respectively provided with strip-shaped through grooves. The screw rods are respectively movable in the slots, and the screw rods can move left and right along the corresponding strip-shaped through grooves respectively. The inner ends of the front screw rods are respectively fixed with laser lights, and the inner ends of the rear side screw rods are respectively fixed with optical sensors. The outer ends are respectively threaded with mounting nuts.

As mentioned above, a liquid viscosity coefficient measurement experimental device, the upper end of the measuring cylinder is movable to install the guiding instrument, and the outer circumference of the guiding instrument is uniformly provided with several horizontal annular grooves, the diameters of the annular grooves are different, and the guiding instrument A liquid level is fixedly installed on the front side of the lower periphery.

A liquid viscosity measurement experimental device as described above, the main control circuit board is fixedly installed inside the base, the display is fixedly installed on the front side of the base, the control board is fixedly installed on the right side of the display, the laser light, the light sensor, The display and the control board are respectively connected with the main control circuit board through circuits.

In the experimental device for measuring the viscosity coefficient of a liquid as described above, the lower edge of the sleeve on the upper side is in the same plane as the central axis of the upper laser lamp, and the upper edge of the lower sleeve is in the same plane as the central axis of the lower laser lamp. The axes are in the same plane, and the front side of the vertical bar is provided with a length scale line.

According to the above-mentioned experimental device for measuring the viscosity coefficient of liquid, the bolts are butterfly nuts, and the nuts are butterfly nuts.

According to the above-mentioned experimental device for measuring the viscosity coefficient of a liquid, the joints of the sleeve and the inverted U-shaped frame are respectively provided with fixed blocks.

The utility model has the advantages of simple structure, convenient assembly and disassembly operations, convenient cleaning, convenient sensor position adjustment, which can meet market demand and is suitable for popularization. When using the utility model, first fix the measuring cylinder containing the liquid to be measured on the left side of the vertical plate, slide the inverted T-shaped slider into the inverted T-shaped chute along the inverted T-shaped chute, and then Adjust the position of the laser light and light sensor on the axis, loosen the nuts respectively, and push the nuts to the left or right respectively, and the screw rod moves to the left or right along the strip-shaped through groove until the center axis of the laser light is respectively in line with the center of the measuring cylinder. The axes are in the same plane, the optical sensors cooperate with the corresponding laser lights respectively, and then tighten the nuts respectively, the laser lights and the light sensors are respectively fixed; then adjust the distance between the upper laser light and the lower laser light, loosen the nuts respectively Bolt, and push the sleeve up or down, the sleeve moves up or down along the vertical rod, the right end of the bolt slides up or down along the bar chute respectively, and tightens them respectively when the distance between the two laser lights is appropriate Bolts, so that the position of the sleeve is fixed, it can be opened for experimental operation; after the experiment, the measuring cylinder can be removed from the left side of the vertical plate, and then the sleeves can be removed from the outer periphery of the vertical rod respectively, so as to facilitate the cleaning of the measuring cylinder And the storage of the device, and the disassembly and assembly are convenient, and the use of the device is convenient.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the appended drawings in the following description The drawings are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings on the premise of not paying creative labor.

Fig. 1 is a schematic structural view of the utility model; Fig. 2 is a top view of Fig. 1 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

An experimental device for measuring the viscosity coefficient of a liquid, as shown in the figure, includes a base 1, a vertical plate 2 is fixedly installed on the right side of the top surface of the base 1, and an inverted T-shaped chute 3 is provided on the left side of the vertical plate 2. In the groove 3, an inverted T-shaped slide block 4 is movable installed, and the inverted T-shaped slide block 4 can slide up and down along the inverted T-shaped slide groove 3, and the left side of the inverted T-shaped slide block 4 is fixedly connected to the right side of the measuring cylinder 5; the top surface of the base 1 The left side of the vertical rod 6 is fixedly installed, and the outer circumference of the vertical rod 6 is covered with two sleeves 7. The sleeves 7 can move up and down along the vertical rod 6 respectively. Bolts 9 are threaded inside respectively, and the left side of the vertical bar 6 offers a strip chute 10. The right ends of the bolts 9 are respectively located in the strip chute 10 and the bolts 9 can slide up and down along the strip chute 10 respectively. The right side is respectively fixedly connected to the left side of the inverted U-shaped frame 11, and the front side and the rear side of the inverted U-shaped frame 11 are respectively provided with strip-shaped through grooves 12, and screw mandrels 13 are respectively movably installed in the strip-shaped through-shaped grooves 12, and the screw mandrels 13 can Move left and right along the corresponding strip-shaped through grooves 12 respectively, the inner ends of the front screw rods 13 are respectively fixedly installed with laser lamps 14, the inner ends of the rear side screw rods 13 are respectively fixedly installed with light sensors 15, and the outer ends of the screw rods 13 are respectively threaded. Install nut 16. The utility model has the advantages of simple structure, convenient assembly and disassembly operations, convenient cleaning and convenient sensor position adjustment, which can meet market demand and is suitable for popularization. When using the utility model, at first the measuring cylinder 5 filled with the liquid to be measured is fixed on the left side of the vertical plate 2, and the inverted T-shaped slide block 4 slides in the inverted T-shaped chute 3 along the inverted T-shaped chute 3, and then according to Adjust the positions of the laser light 14 and the light sensor 15 on the central axis of the measuring cylinder 5 with different calibers, loosen the nuts 16 respectively, and push the nuts 16 to the left or right respectively, and the screw rod 13 moves to the left or right along the strip-shaped through-groove 12 , until the central axis of the laser lamp 14 is in the same plane as the central axis of the measuring cylinder 5, the optical sensor 15 cooperates with the corresponding laser lamp 14 respectively, and then the nuts 16 are tightened respectively, and the laser lamp 14 and the optical sensor 15 are respectively fixed; Then adjust the distance between the upper laser lamp 14 and the lower laser lamp 14, loosen the bolts 9 respectively, and push the sleeve 7 up or down, the sleeve 7 moves up or down along the vertical rod 6, and the bolt 9 The right end slides up or down along the bar-shaped chute 10 respectively, and then tightens the bolts 9 respectively when the distance between the two laser lamps 14 is appropriate, so that the position of the sleeve 7 is fixed, and the experimental operation can be opened; after the experiment is over, The measuring cylinder 5 can be removed from the left side of the vertical plate 2, and then the sleeves 7 can be removed from the outer circumference of the vertical rod 6, which facilitates the cleaning of the measuring cylinder 5 and the storage of the device, and the disassembly and assembly are convenient, which is convenient for the device usage of.

Specifically, as shown in the figure, the upper end of the measuring cylinder 5 described in this embodiment is movably installed with a guide instrument 17, and the outer circumference of the guide instrument 17 is evenly provided with several horizontal annular grooves 18, and the diameters of the annular grooves 18 are different. , the front side of the outer periphery of the guide instrument 17 is fixedly installed with a liquid level instrument 19. Annular groove 18 can be movably matched with measuring cylinders 5 of different calibers to facilitate the adjustment of the angle of guide 17; the central axis of guide 17 is adjusted to be perpendicular to the horizontal plane by liquid level 19 to ensure that the steel ball can fall vertically.

Specifically, as shown in the figure, the main control circuit board 20 is fixedly installed inside the base 1 described in this embodiment, the display 21 is fixedly installed on the front side of the base 1, the control board 22 is fixedly installed on the right side of the display 21, and the laser lamp 14 , the light sensor 15, the display 21, and the control board 22 are respectively connected with the main control circuit board 20 through a circuit. Turn on the power supply through the control board 22, the laser lamp 14, the light sensor 15, the display 21, and the main control circuit board 20 are powered on and start working respectively, and the distance between the upper side laser lamp 14 and the lower side laser lamp 14 is input through the control board 22, In the falling ball experiment, the steel ball passes through the main control circuit board 20 between the upper laser light 14 and the upper light sensor 15. When the design is opened, the steel ball passes through the main control circuit board 20 between the lower laser light 14 and the lower light sensor 15 for timing. At the end, the single-chip microcomputer on the main control circuit board 20 calculates the falling speed of the steel ball and displays it through the display 21.

Further, as shown in the figure, the lower edge of the sleeve 7 described on the upper side of this embodiment is in the same plane as the central axis of the upper laser lamp 14, and the upper edge of the lower sleeve 7 is in the same plane as the lower edge of the lower laser lamp 14. The central axis is in the same plane, and the front side of the vertical bar 6 offers a length scale line 23 . Through the cooperation of the lower edge of the upper sleeve 7, the upper edge of the lower sleeve 7, and the length scale line 23, the distance between the upper laser lamp 14 and the lower laser lamp 14 can be directly measured, so that the device can be used more convenient.

Furthermore, as shown in the figure, the bolt 9 described in this embodiment is a butterfly nut, and the nut 16 is a butterfly nut. The bolt 9 and the nut 16 are designed as butterfly nuts or butterfly nuts, which is convenient for directly tightening or loosening the bolt 9 and the nut 16 by hand, and increases user experience.

Furthermore, as shown in the figure, fixing blocks are respectively provided at the joints of the sleeve 7 and the inverted U-shaped frame 11 in this embodiment. The fixing block can increase the stability between the sleeve 7 and the corresponding inverted U-shaped frame 11, making the connection more firm.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the various embodiments of the present invention. and range.

Claims (6)

1. a kind of coefficient of viscosity measurement experiment device, it is characterised in that：Including pedestal（1）, pedestal（1）The right side of top surface is solid Dingan County fills riser（2）, riser（2）Left side open up inverted T shaped sliding slot（3）, inverted T shaped sliding slot（3）Inverted T shaped sliding block is installed in interior activity （4）, inverted T shaped sliding block（4）It can be along inverted T shaped sliding slot（3）It slides up and down, inverted T shaped sliding block（4）Left side be fixedly connected with graduated cylinder（5） Right side；Pedestal（1）Montant is fixedly mounted in the left side of top surface（6）, montant（6）Periphery be set with two sleeves（7）, sleeve（7） It can be respectively along montant（6）It moves up and down, sleeve（7）Left side open up tapped through hole respectively（8）, tapped through hole（8）Interior difference Threaded mounting bolts（9）, montant（6）Left side open up bar shaped sliding slot（10）, bolt（9）Right end be located at bar shaped sliding slot （10）Interior and bolt（9）It can be respectively along bar shaped sliding slot（10）It slides up and down, sleeve（7）Right side be respectively fixedly connected with inverted U Frame（11）Left side, inverted U frame（11）Front side and rear side open up bar shaped through groove respectively（12）, bar shaped through groove（12）Inside live respectively Dynamic installation lead screw（13）, lead screw（13）It can be respectively along corresponding bar shaped through groove（12）It moves left and right, front side lead screw（13）It is interior Laser lamp is fixedly mounted in end respectively（14）, rear side lead screw（13）Inner end optical sensor is fixedly mounted respectively（15）, lead screw（13） Outer end difference screw thread install nut（16）.

2. a kind of coefficient of viscosity measurement experiment device according to claim 1, it is characterised in that：The graduated cylinder （5）Upper end activity guide instrument is installed（17）, guide instrument（17）Periphery uniformly open up the annular grooves of several levels（18）, ring Connected in star（18）Diameter it is different, guide instrument（17）Liquid water level is fixedly mounted in the front side of lower, outer perimeter（19）.

3. a kind of coefficient of viscosity measurement experiment device according to claim 1, it is characterised in that：The pedestal （1）Inside be fixedly mounted main control board（20）, pedestal（1）Front side be fixedly mounted display（21）, display（21）'s Control panel is fixedly mounted in right side（22）, laser lamp（14）, optical sensor（15）, display（21）, control panel（22）Respectively with master Control circuit board（20）It is connected by circuit.

4. a kind of coefficient of viscosity measurement experiment device according to claim 1, it is characterised in that：Set described in upside Cylinder（7）Lower edge and upside laser lamp（14）Central axes in the same plane, lower sleeve（7）Upper edge and downside laser Lamp（14）Central axes in the same plane, montant（6）Front side open up length scale line（23）.

5. a kind of coefficient of viscosity measurement experiment device according to claim 1, it is characterised in that：The bolt （9）For butterfly nut, nut（16）For butterfly nut.

6. a kind of coefficient of viscosity measurement experiment device according to claim 1, it is characterised in that：The sleeve （7）With inverted U frame（11）Junction be respectively equipped with fixed block.