A liquid viscosity detection device

Abstract

The application discloses a liquid viscosity detection device, and particularly relates to the viscosity detection field. The liquid viscosity detection device comprises a base, a control box and a bath are arranged on the base, the bath is used for containing constant-temperature bath liquid, a cylinder cover is arranged on the bath, an opening is arranged on the cylinder cover, a capillary tube holder is arranged at the position of the opening, the capillary tube holder is used for clamping a capillary tube viscometer, the capillary tube viscometer extends into the inside of the bath, a heating assembly and a stirrer are installed on the cylinder cover, the heating assembly is used for heating the constant-temperature bath liquid, and the stirrer is used for stirring the constant-temperature bath liquid. The capillary tube viscometer extends into the inside of the bath, the heating assembly is used for heating the constant-temperature bath liquid, and the stirrer is used for stirring to make the heat distribute uniformly, so that the temperature of the liquid to be detected in the capillary tube viscometer can be kept constant, the viscosity of the liquid to be detected under certain temperature conditions can be detected, and the influence of the change of the environment temperature is avoided.

Description

Technical Field

[0001] This invention relates to the field of viscosity testing technology, and more specifically, to a liquid viscosity testing device. Background Technology

[0002] Viscosity is a physical property of fluids that reflects the internal friction between molecules when a fluid is subjected to external forces. Viscosity testing is required in the quality inspection of various petroleum products and paints.

[0003] Viscosity testing typically uses a glass capillary viscometer, which measures the time required for a certain volume of liquid to flow through the capillary viscometer under gravity using a relative method, in order to obtain the kinematic viscosity of the liquid.

[0004] Currently, viscosity testing involves first drawing the liquid to be tested into a glass capillary viscometer, then holding the viscometer and directly observing the time it takes for the liquid to descend from mark a to mark b. This process is repeated multiple times to calculate the kinematic viscosity. However, liquid viscosity is affected by temperature changes; viscosity varies at different temperatures. Therefore, the method of measuring viscosity with a handheld glass capillary viscometer is insufficient to determine the viscosity at a specific temperature. Summary of the Invention

[0005] The present invention provides a liquid viscosity detection device, which aims to solve the problem that the method of measuring viscosity with a handheld glass capillary viscometer is difficult to measure the liquid viscosity value at a certain temperature due to the influence of ambient temperature changes.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a liquid viscosity testing device, comprising a base, a control box and a bathtub mounted on the base, the bathtub being used to contain a constant-temperature bath liquid, a cylinder cover being mounted on the bathtub, the cylinder cover having an opening, a capillary clamp being mounted at the opening, the capillary clamp being used to clamp a capillary viscometer, the capillary viscometer extending into the interior of the bathtub, a heating component and a stirrer being mounted on the cylinder cover, the heating component being used to heat the constant-temperature bath liquid, and the stirrer being used to stir the constant-temperature bath liquid, so as to keep the temperature of the constant-temperature bath liquid in the bathtub constant.

[0007] In a preferred embodiment, the heating assembly includes a spiral heating tube with straight heating tubes at both ends, and the upper ends of the two straight heating tubes are fixedly mounted on the cylinder head.

[0008] In a preferred embodiment, the agitator includes an electric motor, which is fixedly mounted on the top of the cylinder cover. An agitator rod is fixedly mounted on the output end of the cylinder cover, extending into the interior of the bathtub, and agitator blades are fixedly mounted on the agitator rod.

[0009] In a preferred embodiment, the capillary viscometer includes a U-shaped tube body. One side of the U-shaped tube body has two expansion sections and a capillary section from top to bottom. The position between the two expansion sections is marked with a line a, and the bottom position of the lower expansion section is marked with a line b. The other side of the U-shaped tube body has an expansion section and an air inlet at the lower and upper positions, respectively.

[0010] In a preferred embodiment, the capillary holder is a fixed holder, which includes a clamping plate, which is placed at the open position. The clamping plate has a clamping hole, and a fastening bolt is threaded to one side of the clamping plate. The fastening bolt is used to press the U-shaped tube body into the clamping hole.

[0011] In a preferred embodiment, an opening is provided on one side of the clamping disc, and a through groove is provided on the other side of the opening. One end of the U-shaped tube extends into the opening, and the air intake faces the through groove.

[0012] In a preferred embodiment, a temperature sensor and a thermometer are fixedly installed on the tank cover. The temperature sensor is used to detect the temperature of the thermostatic bath liquid in the bathtub, and the thermometer is used to measure the temperature of the thermostatic bath liquid in the bathtub.

[0013] In a preferred embodiment, the control box is a temperature controller. The control box controls the heating component to heat the constant temperature bath liquid according to the temperature detected by the temperature sensor, thereby keeping the temperature of the constant temperature bath liquid constant.

[0014] In a preferred embodiment, the liquid viscosity testing device further includes a cap for covering the opening, and a handle is provided on the upper surface of the cap.

[0015] In a preferred embodiment, the bathtub is made of a completely transparent material or a portion of the material on the side wall of the bathtub is made of a transparent material, so that the capillary viscometer can be observed from the transparent material location.

[0016] In a preferred embodiment, the capillary clamp is a movable clamp, which includes a clamping plate two, which is placed at the opening. Both sides of the opening are rotatably connected to a rotating column via an elastic component one. The clamping plate two is mounted on the rotating column, and a stop block is fixedly connected to one side of the rotating column. The stop block presses against the upper surface inside the opening. An adjusting clamping block is rotatably connected to the upper surface of the clamping plate two via the elastic component two. The adjusting clamping block has a clamping hole two, and a fastening bolt two is threadedly connected to one side of the adjusting clamping block. The fastening bolt two is used to press the U-shaped tube body into the clamping hole two. The rotation axis of the rotating column is perpendicular to the rotation axis of the adjusting clamping block.

[0017] In a preferred embodiment, the liquid viscosity detection device further includes an adjustment component for adjusting the angle of the capillary viscometer so that the capillary viscometer is in a vertical position.

[0018] In a preferred embodiment, the adjusting assembly includes a fixed plate fixedly mounted on the cylinder head. A rotating shaft is rotatably connected to one end of the fixed plate near the moving clamp. A gear is fixedly mounted on the rotating shaft, and a bevel gear set is mounted on the rotating shaft. An adjusting rod is mounted on the output end of the bevel gear set. An inclined surface is provided on the upper surface of the clamping plate, and the end of the adjusting rod presses against the inclined surface. A rack is slidably mounted on the fixed plate, and the rack meshes with the gear.

[0019] In a preferred embodiment, a movable column is rotatably connected to the end of the fixed plate away from the adjusting assembly. A gear two is movably sleeved on the movable column and rotatably connected to the fixed plate. A spiral groove is formed on the movable column, and a protrusion is fixedly connected to the inner side wall of the gear two. The protrusion slides inside the spiral groove. An adjusting column is fixedly connected to the end of the movable column. The adjusting column passes through the rotating shaft and extends to one end of the adjusting clamp. A rack two is slidably mounted on the fixed plate and meshes with the gear two. A guide hole is formed at the end of the adjusting clamp, and the upper end of the inner surface of the guide hole has a slope two.

[0020] In a preferred embodiment, the adjusting column has a groove along the axial direction, and a guide column is vertically fixed on the fixing plate, with the guide column movably inserted into the inner side of the groove.

[0021] In a preferred embodiment, the rotating column has an insertion hole, and the bottom of the clamping plate two is fixedly connected to the insertion post, which is inserted into the insertion hole.

[0022] In a preferred embodiment, a horizontal control component is provided on the clamping plate 2. The horizontal control component includes a column frame vertically inserted into the clamping plate 2. Two clamping plates are fixedly connected to the upper end of the column frame. One side of the clamping plate has a passage. A weighing component is provided above the column frame. The weighing component is mounted on the cylinder head by a bracket. A pull rope is fixedly connected to the weighing end of the weighing component. A counterweight is fixedly connected to the bottom end of the pull rope. The pull rope passes through the gap between the two clamping plates. The width of the gap between the two clamping plates is equal to the diameter of the pull rope.

[0023] In a preferred embodiment, two grooves are formed on the inner sidewall of the clamping plate 2, and a transverse hole is formed on the sidewall at the bottom of the column frame. A spring and a ball are arranged inside the transverse hole. The spring is used to press the ball inside the groove. When the column frame rotates 90 degrees, the ball moves from one groove to the inside of the other groove.

[0024] The technical effects and advantages of this invention are as follows:

[0025] This invention involves inserting a capillary viscometer into the interior of a bathtub, using a heating element to heat the constant-temperature bath liquid, and using a stirrer to ensure uniform heat distribution. This allows the liquid inside the capillary viscometer to maintain a constant temperature, enabling the detection of the viscosity of the liquid under specific temperature conditions, thus avoiding the influence of ambient temperature changes.

[0026] This invention, by setting up a moving clamp, an adjustment component, and a leveling control component, can, on the one hand, level the capillary viscometer along the X and Y axes; on the other hand, by determining whether the capillary viscometer is leveled by observing the difference in the weighing readings of the weighing component when tilted and not tilted, it avoids the influence of subjective human factors, ensuring that the time for the liquid surface to flow from mark a to mark b is accurate, and the calculated kinematic viscosity is also accurate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0028] Figure 2 This is a partial structural diagram of the present invention. Figure 1 .

[0029] Figure 3 This is a schematic diagram of the structure of the fixed clamp and capillary viscometer of the present invention.

[0030] Figure 4 This is a schematic diagram of the capillary viscometer of the present invention.

[0031] Figure 5 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0032] Figure 6 This is a partial structural diagram of the present invention. Figure 2 .

[0033] Figure 7 This is a schematic diagram of the structure of the moving clamp and adjustment assembly of the present invention.

[0034] Figure 8 This is a schematic diagram of the cylinder head and clamping plate II of the present invention.

[0035] Figure 9 This is a schematic diagram of the structure of the gear 2 and the adjusting column of the present invention.

[0036] Figure 10 This is a schematic diagram of the structure of the horizontal control component of the present invention. Figure 1 .

[0037] Figure 11 This is a schematic diagram of the structure of the horizontal control component of the present invention. Figure 2 .

[0038] Figure 12 This is a cross-sectional view of the installation of the clamping plate and the column frame of the present invention.

[0039] The attached diagram is labeled as follows: 1. Base; 11. Control box; 2. Bathtub; 21. Cylinder cover; 22. Opening; 3. Fixed clamp; 31. Clamping plate one; 32. Clamping hole one; 33. Fastening bolt one; 34. Opening; 35. Through groove; 4. Capillary viscometer; 41. U-shaped tube body; 42. Expansion section one; 43. Capillary section; 44. Expansion section two; 45. Inlet; 5. Heating assembly; 51. Spiral heating tube; 52. Straight heating tube; 6. Stirrer; 61. Motor; 62. Stirring rod; 63. Stirring blade; 7. Temperature sensor; 8. Thermometer; 9. Cover; 100. Moving clamp; 101. Clamping plate two; 1011. Inclined surface one; 1012. Insert post; 102. Adjusting clamp; 1021. Clamping hole two; 1022. Guide hole; 1 023. Inclined plane II; 103. Rotating column; 1031. Stop block; 1032. Insertion hole; 104. Fastening bolt II; 110. Adjusting component; 111. Fixing plate; 112. Rotating shaft; 113. Gear I; 114. Bevel gear set; 115. Adjusting rod; 116. Rack I; 117. Movable column; 1171. Spiral groove; 118. Gear II; 1181. Protrusion; 119. Adjusting column; 1191. Slide groove; 1110. Rack II; 1111. Guide column; 120. Horizontal control component; 121. Column frame; 122. Clamping plate; 1221. Passageway; 123. Weighing component; 1231. Pull rope; 1232. Counterweight; 130. Horizontal hole; 131. Groove; 132. Spring; 133. Ball bearing. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Refer to the instruction manual appendix Figures 1-4 A liquid viscosity testing device includes a base 1, a control box 11 and a bathtub 2 mounted on the base 1. The bathtub 2 is used to contain a constant temperature bath liquid. The bathtub 2 is covered with a cylinder cover 21, which has an opening 22. A capillary clamp is installed at the opening 22 to hold a capillary viscometer 4, which extends into the interior of the bathtub 2. A heating element 5 and a stirrer 6 are installed on the cylinder cover 21. The heating element 5 is used to heat the constant temperature bath liquid, and the stirrer 6 is used to stir the constant temperature bath liquid to keep the temperature of the constant temperature bath liquid in the bathtub 2 constant.

[0042] In this embodiment, as Figure 2 As shown, the heating assembly 5 includes a spiral heating tube 51, and both ends of the spiral heating tube 51 have straight heating tubes 52. The upper ends of the two straight heating tubes 52 are fixedly installed on the cylinder head 21.

[0043] In this embodiment, as Figure 2 As shown, the stirrer 6 includes a motor 61, which is fixedly mounted on the top of the cylinder cover 21. A stirring rod 62 is fixedly mounted on the output end of the cylinder cover 21. The stirring rod 62 extends into the interior of the bathtub 2, and a stirring blade 63 is fixedly mounted on the stirring rod 62.

[0044] In this embodiment, as Figures 1-2 As shown, a temperature sensor 7 and a thermometer 8 are fixedly installed on the cylinder cover 21. The temperature sensor 7 is used to detect the temperature of the constant temperature bath liquid in the bathtub 2, and the thermometer 8 is used to measure the temperature of the constant temperature bath liquid in the bathtub 2.

[0045] In this embodiment, as Figure 1 As shown, the control box 11 is a temperature controller. The control box 11 controls the heating component 5 to heat the constant temperature bath liquid according to the temperature detected by the temperature sensor 7, so that the temperature of the constant temperature bath liquid is kept constant.

[0046] In the above technical solution, by inserting the capillary viscometer 4 into the interior of the bathtub 2, heating the constant temperature bath liquid using the heating component 5, and stirring with the stirrer 6 to make the heat distribution uniform, the liquid to be tested inside the capillary viscometer 4 can maintain a constant temperature, thereby enabling the detection of the viscosity of the liquid to be tested under certain temperature conditions, avoiding the influence of changes in ambient temperature.

[0047] In this embodiment, as Figure 4 As shown, the capillary viscometer 4 includes a U-shaped tube body 41. One side of the U-shaped tube body 41 has two expansion sections 42 and a capillary section 43 from top to bottom. The position between the two expansion sections 42 is marked with a line a, and the bottom position of the lower expansion section 42 is marked with a line b. The other side of the U-shaped tube body 41 has an expansion section 44 at the lower position and an air intake 45 at the upper position.

[0048] In this embodiment, as Figure 3 As shown, the capillary holder is a fixed holder 3, which includes a clamping plate 31. The clamping plate 31 is placed at the position of the open opening 22. The clamping plate 31 has a clamping hole 32. A fastening bolt 33 is threadedly connected to one side of the clamping plate 31. The fastening bolt 33 is used to press the U-shaped tube body 41 into the inside of the clamping hole 32.

[0049] Furthermore, an opening 34 is provided on one side of the clamp 31, and a through groove 35 is provided on one side of the opening 34. One end of the U-shaped tube 41 extends into the opening 34, and the air intake 45 faces the through groove 35.

[0050] It should be noted that when using the fixed clamp 3 to clamp the capillary viscometer 4, first insert the U-shaped tube body 41 upward from the bottom of the clamping plate 31 into the clamping hole 32, and then rotate the fastening bolt 33 to press the U-shaped tube body 41 onto the side wall of the clamping hole 32 to achieve fixation. After fixation, the other end of the capillary viscometer 4 can be inserted into the opening 34. The purpose of setting the through groove 35 is to prevent the suction port 45 from colliding with the clamping plate 31.

[0051] In this embodiment, the specific implementation method is as follows: First, the liquid to be tested needs to be loaded into the capillary viscometer 4. During operation, the tube opening above the suction port 45 is blocked with a finger. Then, the capillary viscometer 4 is inverted, and the U-shaped tube body 41 is inserted into the container containing the liquid to be tested. Then, a rubber ball or other suction device is used to draw the liquid to be tested into the U-shaped tube body 41 at the suction port 45. Specifically, the liquid to be tested is drawn to the mark b. Then, the capillary viscometer 4 is quickly lifted from the window, and the tube opening is quickly turned upward. At the same time, the liquid to be tested adhering to the outer wall of the tube opening is wiped away. Next, the capillary viscometer 4 is clamped with the fixed clamp 3, and the fixed clamp 3 is placed at the position of the open port 22 so that the capillary viscometer 4 is inserted into the inside of the bathtub 2, and the upper expansion part 42 is inserted halfway into the constant temperature bath liquid. Next, use a rubber bulb or other suction device to pump the liquid to be tested above mark a, observe the flow of the liquid, and measure the time it takes for the liquid level to rise from mark a to mark b. Take multiple measurements and average the results. Then, substitute the values ​​into the following formula to calculate the kinematic viscosity ν of the liquid. t (mm 2 / s):

[0052] ν t =cτ t

[0053] Where: c: viscosity calculation constant, mm 2 / s 2 ;τ t : Average flow time of the liquid being tested, in seconds.

[0054] In this embodiment, as Figure 1 and Figure 2 As shown, the liquid viscosity testing device also includes a cover 9, which is used to cover the opening 22, and a handle is provided on the upper surface of the cover 9.

[0055] It should be noted that the cylinder head 21 may have multiple openings 22. The openings 22 that are not in use can be covered with caps 9 to prevent dust.

[0056] In this embodiment, the bathtub 2 is made of a completely transparent material or a portion of the material on the side wall of the bathtub 2 is made of a transparent material, so that the capillary viscometer 4 can be observed from the transparent material location.

[0057] It should be noted that the purpose of making the bathtub 2 completely transparent is to facilitate observation of the flow of the liquid to be tested inside the capillary viscometer 4 and to facilitate timing. The purpose of making part of the material on the side wall of the bathtub 2 transparent, that is, to set up an observation window, is also to facilitate observation of the flow of the liquid to be tested inside the capillary viscometer 4.

[0058] This liquid viscosity testing device can be used to test the kinematic viscosity of liquids such as petroleum and lubricating oil. Depending on the measurement temperature, the constant temperature bath liquid can be selected from transparent mineral oil, glycerin, water, etc.

[0059] Refer to the instruction manual appendix Figures 3-12 If the capillary viscometer 4 is installed unevenly, or if the tabletop or the support legs of the base 1 are uneven, the capillary viscometer 4 may be tilted when measuring viscosity. When the capillary viscometer 4 is tilted, the liquid column of the liquid being measured will be subjected to a lateral force, and the pressure difference between the two liquid surfaces will also change. As a result, the time it takes for the liquid to flow from mark a to mark b will increase, leading to inaccurate test results. To address this, the following technical solution is proposed.

[0060] like Figures 5-8 As shown, the capillary holder is a movable holder 100, which includes a second clamping plate 101. The second clamping plate 101 is placed at the position of the opening 22. Both sides of the opening 22 are rotatably connected to a rotating column 103 through an elastic component. The second clamping plate 101 is mounted on the rotating column 103. A stop block 1031 is fixedly connected to one side of the rotating column 103. The stop block 1031 presses against the upper surface inside the opening 22. An adjusting clamping block 102 is rotatably connected to the upper surface of the second clamping plate 101 through an elastic component. The adjusting clamping block 102 has a clamping hole 1021, and a fastening bolt 104 is threadedly connected to one side of the adjusting clamping block 102. The fastening bolt 104 is used to press the U-shaped tube body 41 into the clamping hole 1021. The rotation axis of the rotating column 103 is perpendicular to the rotation axis of the adjusting clamping block 102.

[0061] It should be noted that the first elastic component is a torsion spring, which allows the stop block 1031 to be pressed against the upper surface inside the opening 22. The second elastic component is a torsion spring, which allows the end of the adjusting clamp 102 to be pressed against the surface of the clamping plate 101. A hole is provided on the surface of the clamping plate 101, located below the clamping hole 1021, for the U-shaped tube 41 to pass through. When using the movable clamp 100 to hold the capillary viscometer 4, the U-shaped tube 41 is inserted upwards from the bottom of the clamping plate 101 into the clamping hole 1021, and then the fastening bolt 104 is rotated to press the U-shaped tube 41 against the inner wall of the clamping hole 1021 for fixation.

[0062] Furthermore, the liquid viscosity detection device also includes an adjustment component 110, which is used to adjust the angle of the capillary viscometer 4 so that the capillary viscometer 4 is in a vertical state.

[0063] Specifically, such as Figure 7 As shown, the adjustment assembly 110 includes a fixed plate 111 fixedly mounted on the cylinder head 21. A rotating shaft 112 is rotatably connected to one end of the fixed plate 111 near the moving clamp 100. A gear 113 is fixedly mounted on the rotating shaft 112. A bevel gear set 114 is mounted on the rotating shaft 112. An adjustment rod 115 is mounted on the output end of the bevel gear set 114. An inclined surface 1011 is provided on the upper surface of the clamp 101. The end of the adjustment rod 115 presses against the inclined surface 1011. A rack 116 is slidably mounted on the fixed plate 111. The rack 116 meshes with the gear 113.

[0064] It should be noted that the bevel gear set 114 consists of two bevel gears. The first bevel gear is fixed on the rotating shaft 112, and the second bevel gear rotates on the fixed plate 111. The two bevel gears mesh with each other. The adjusting rod 115 is installed on the second bevel gear and can rotate together with the second bevel gear.

[0065] Specifically, such as Figure 7 As shown, a movable column 117 is rotatably connected to the end of the fixed plate 111 away from the adjusting assembly 110. A gear 118 is movably sleeved on the movable column 117. The gear 118 is rotatably connected to the fixed plate 111. A spiral groove 1171 is opened on the movable column 117. A protrusion 1181 is fixedly connected to the inner side wall of the gear 118. The protrusion 1181 slides inside the spiral groove 1171. An adjusting column 119 is fixedly connected to the end of the movable column 117. The adjusting column 119 passes through the rotating shaft 112 and extends to one end of the adjusting clamp 102. A rack 1110 is slidably installed on the fixed plate 111. The rack 1110 meshes with the gear 118. A guide hole 1022 is opened at the end of the adjusting clamp 102. The upper end of the inner surface of the guide hole 1022 has a slope 1023.

[0066] Furthermore, the adjusting column 119 has a sliding groove 1191 along the axial direction, and a guide column 1111 is vertically fixed on the fixing plate 111, with the guide column 1111 movably inserted into the inner side of the sliding groove 1191.

[0067] It should be noted that, due to the setting of the guide column 1111, the adjusting column 119 can only move along its own axis.

[0068] Furthermore, the rotating column 103 has an insertion hole 1032, and the bottom of the clamping plate 101 is fixedly connected to an insertion post 1012, which is inserted into the insertion hole 1032.

[0069] In this embodiment, the specific implementation method is as follows: After filling the capillary viscometer 4 with the liquid to be tested and clamping it with the movable clamp 100, the clamp plate 101 is placed at the position of the open port 22, and the insertion post 1012 is inserted into the insertion hole 1032, so that the capillary viscometer 4 is inserted into the bathtub 2, and the upper expansion part 42 is inserted halfway into the constant temperature bath liquid. Then the capillary viscometer 4 can be adjusted to make the capillary viscometer 4 horizontal. During adjustment, first pull the rack 116, the rack 116 drives the gear 113 and the rotating shaft 112 to rotate, and the rotating shaft 112 drives the adjusting rod 115 to rotate through the bevel gear set 114. The adjusting rod 115 moves on the inclined plane 1011, so that the adjusting rod 115 can press down on the inclined plane 1011, so that the clamp plate 101 rotates around the axis of the rotating post 103. By rotating the clamp plate 101, the Y direction of the capillary viscometer 4 can be leveled. Then pull rack 2 1110, rack 2 1110 drives gear 2 118 to rotate, gear 2 118 drives movable column 117 to move through the sliding of protrusion 1181 inside spiral groove 1171, movable column 117 drives adjusting column 119 to move towards the end of adjusting clamp 102, adjusting column 119 enters guide hole 1022 and pushes inclined surface 2 1023, causing adjusting clamp 102 to swing upward. By adjusting clamp 102 swinging upward, the X direction of capillary viscometer 4 can be leveled.

[0070] In the prior art, when leveling the capillary viscometer 4, the method of using a plumb line and visual observation is used to determine whether it is horizontal, which has a large error. Therefore, in this embodiment, the following technical solution is proposed.

[0071] like Figures 10-12As shown, a horizontal control component 120 is provided on the clamping plate 2 101. The horizontal control component 120 includes a column frame 121 vertically inserted into the clamping plate 2 101. Two clamping plates 122 are fixedly connected to the upper end of the column frame 121. One side of the clamping plate 122 has a passage 1221. A weighing component 123 is provided above the column frame 121. The weighing component 123 is mounted on the cylinder head 21 by a bracket. A pull rope 1231 is fixedly connected to the weighing end of the weighing component 123. A counterweight 1232 is fixedly connected to the bottom end of the pull rope 1231. The pull rope 1231 passes through the gap between the two clamping plates 122. The width of the gap between the two clamping plates 122 is equal to the diameter of the pull rope 1231.

[0072] Furthermore, two grooves 131 are formed on the inner side wall of the clamp 101, and a transverse hole 130 is formed on the side wall at the bottom of the column frame 121. A spring 132 and a ball 133 are arranged inside the transverse hole 130. The spring 132 is used to press the ball 133 into the groove 131. When the column frame 121 rotates 90 degrees, the ball 133 moves from one groove 131 to the inside of the other groove 131.

[0073] It should be noted that the groove 131, spring 132 and ball bearing 133 are used to position the column frame 121 and prevent it from shifting.

[0074] In this embodiment, the implementation method is as follows: When the movable clamp 100 is placed on the open port 22, the pull rope 1231 is passed through the through port 1221 into the gap between the two clamping plates 122. When adjusting the capillary viscometer 4 to be horizontal, the Y direction is adjusted first. When adjusting the Y direction, the length direction of the gap between the two clamping plates 122 needs to be parallel to the Y axis. When the clamping plate 101 is tilted and not horizontal, the clamping plate 122 abuts against the pull rope 1231, causing the weighing reading of the weighing component 123 to change. When the Y direction of the capillary viscometer 4 is leveled, the clamping plate 122 will no longer abut against the pull rope 1231, so the reading of the pull rope 1231 is the sum of the mass of the pull rope 1231 and the counterweight 1232. Then adjust the X-direction. To do this, first rotate the column frame 121 so that the length of the gap between the two clamping plates 122 is parallel to the X-axis. The same principle applies when adjusting the Y-axis. When the X-direction of the capillary viscometer 4 is leveled, the clamping plates 122 will no longer block the pull rope 1231, thus the reading of the weighing component 123 will be the sum of the masses of the pull rope 1231 and the counterweight 1232. At this point, the capillary viscometer 4 can be adjusted to a horizontal position. The weighing component 123 is an electronic tension scale.

[0075] It should be noted that if the capillary viscometer 4 cannot be leveled by adjusting component 110, the table can be changed or the orientation of the device on the table can be changed, or the feet of the base 1 can be checked until it can be leveled.

[0076] The above technical solution, by setting up a dynamic clamp 100, an adjustment component 110, and a level control component 120, can, on the one hand, level the capillary viscometer 4 in the X and Y axis directions; on the other hand, by judging whether the capillary viscometer 4 is leveled by the difference in the weighing reading of the weighing component 123 when tilted and not tilted, it avoids the influence of human subjective factors, and makes the time for the liquid surface to flow from mark a to mark b accurate, and the calculated kinematic viscosity also accurate.

[0077] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid viscosity detection device, characterized in that: The system includes a base (1), on which a control box (11) and a bathtub (2) are mounted. The bathtub (2) is used to contain a constant temperature bath liquid. The bathtub (2) is covered with a cylinder cover (21). An opening (22) is provided on the cylinder cover (21). A capillary clamp is provided at the position of the opening (22). The capillary clamp is used to clamp a capillary viscometer (4). The capillary viscometer (4) extends into the interior of the bathtub (2). A heating component (5) and a stirrer (6) are installed on the cylinder cover (21). The heating component (5) is used to heat the constant temperature bath liquid. The stirrer (6) is used to stir the constant temperature bath liquid so that the temperature of the constant temperature bath liquid in the bathtub (2) remains constant. The capillary clamp is a movable clamp (100), which includes a second clamp (101). The second clamp (101) is placed at the position of the opening (22). Both sides of the opening (22) are rotatably connected to a rotating column (103) through an elastic component. The second clamp (101) is mounted on the rotating column (103). A stop block (1031) is fixedly connected to one side of the rotating column (103). The stop block (1031) presses against the upper surface inside the opening (22). On the upper surface of the clamping plate (101), an adjusting clamping block (102) is rotatably connected to the upper surface of the clamping plate (101) via an elastic component (2). The adjusting clamping block (102) has a clamping hole (1021) and a fastening bolt (104) is threadedly connected to one side of the adjusting clamping block (102). The fastening bolt (104) is used to press the U-shaped tube body (41) of the capillary viscometer (4) into the inside of the clamping hole (1021). The rotation axis of the rotating column (103) is perpendicular to the rotation axis of the adjusting clamping block (102). The liquid viscosity detection device also includes an adjustment component (110) for adjusting the angle of the capillary viscometer (4) so ​​that the capillary viscometer (4) is in a vertical position; A horizontal control component (120) is provided on the clamping plate two (101). The horizontal control component (120) includes a column frame (121) vertically inserted into the clamping plate two (101). Two clamping plates (122) are fixedly connected to the upper end of the column frame (121). One side of the clamping plate (122) has a passage (1221). A weighing component (123) is provided above the column frame (121). The weighing component (123) is mounted on the cylinder head (21) by a bracket. A pull rope (1231) is fixedly connected to the weighing end of the weighing component (123). A counterweight (1232) is fixedly connected to the bottom end of the pull rope (1231). The pull rope (1231) passes through the gap between the two clamping plates (122). The width of the gap between the two clamping plates (122) is equal to the diameter of the pull rope (1231).

2. The liquid viscosity detection device according to claim 1, characterized in that: The heating assembly (5) includes a spiral heating tube (51), both ends of which have straight heating tubes (52), and the upper ends of the two straight heating tubes (52) are fixedly installed on the cylinder head (21).

3. The liquid viscosity detection device according to claim 1, characterized in that: The agitator (6) includes an electric motor (61), which is fixedly mounted on the top of the cylinder cover (21). An agitator rod (62) is fixedly mounted on the output end of the cylinder cover (21). The agitator rod (62) extends into the interior of the bathtub (2), and an agitator blade (63) is fixedly mounted on the agitator rod (62).

4. The liquid viscosity detection device according to claim 1, characterized in that: The capillary viscometer (4) includes a U-shaped tube body (41). One side of the U-shaped tube body (41) has two expansion sections (42) and a capillary section (43) from top to bottom. The position between the two expansion sections (42) is marked with a line a, and the bottom position of the lower expansion section (42) is marked with a line b. The other side of the U-shaped tube body (41) has an expansion section (44) and an air inlet (45) at the lower and upper positions, respectively.

5. The liquid viscosity detection device according to claim 1, characterized in that: A temperature sensor (7) and a thermometer (8) are fixedly installed on the cylinder cover (21). The temperature sensor (7) is used to detect the temperature of the constant temperature bath liquid in the bathtub (2), and the thermometer (8) is used to measure the temperature of the constant temperature bath liquid in the bathtub (2).

6. The liquid viscosity detection device according to claim 5, characterized in that: The control box (11) is a temperature controller. The control box (11) controls the heating component (5) to heat the constant temperature bath liquid according to the temperature detected by the temperature sensor (7), so that the temperature of the constant temperature bath liquid is constant.

7. The liquid viscosity detection device according to claim 1, characterized in that: The liquid viscosity testing device also includes a cover (9) for covering the opening (22), and the upper surface of the cover (9) is provided with a handle.

8. The liquid viscosity detection device according to claim 1, characterized in that: The bathtub (2) is made of a completely transparent material or a portion of the material on the side wall of the bathtub (2) is made of a transparent material, so that the capillary viscometer (4) can be observed from the transparent material position.

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