Plug cock type capillary viscometer

Abstract

The utility model discloses a cock type capillary viscometer. The cock type capillary viscometer comprises a viscometer body, the viscometer body is provided with a first pipe opening, a second pipe opening and a third pipe opening which are communicated with a pipe cavity of the viscometer body, the viscometer body is further provided with a cock, and the cock is located between the second pipe opening and the third pipe opening and used for opening and closing the second pipe opening; the clamping and fixing assembly is used for clamping and fixing the viscometer; and the lifting assembly is in transmission fit with the clamping and fixing assembly and is used for driving the clamping and fixing assembly and the viscometer to lift. According to the utility model, the damage of the capillary tube caused by the interference of human factors is avoided, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of capillary viscometers, in particular to a plug-type capillary viscometer. Background Art

[0002] A capillary viscometer is an instrument used to measure fluid viscosity. Its principle is based on the capillary phenomenon. A thin and long glass tube is used as a container. The fluid to be measured is placed in the tube. The viscosity is calculated by measuring the time required for the fluid to flow in the capillary and the geometric dimensions of the tube. The thinner the inner diameter of the capillary, the longer the time required for the fluid to flow and the greater the viscosity. This instrument is often used to measure the viscosity of liquids and gases and can be widely used in the study of rheological properties in chemistry, biology, food, medicine and other fields.

[0003] During the test, the capillary viscometer needs to be kept in a vertical state. The existing sampling device requires the thumb to press the second tube mouth when sampling. If the force is not strong enough, the second tube mouth may not be completely blocked. If the force is too strong, the capillary is easily broken and damaged because it is a glass product. After the capillary viscometer is placed, it may cause the viscometer to shake and tilt, causing the reagent in the viscometer to shake, affecting the test results, requiring re-testing, increasing workload, and reducing work efficiency.

[0004] Therefore, those skilled in the art provide a plug-type capillary viscometer to solve the problems raised in the above background technology. Utility Model Content

[0005] The main purpose of the utility model is to provide a plug-type capillary viscometer to overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model includes:

[0007] The present invention provides a plug-type capillary viscometer, which includes:

[0008] A viscometer having a first port, a second port, and a third port connected to the viscometer's lumen, and further comprising a stopcock located between the second port and the third port and configured to open and close the second port.

[0009] A clamping and fixing component, used for clamping and fixing the viscometer;

[0010] The lifting component is in transmission cooperation with the clamping and fixing component and is used to drive the clamping and fixing component and the viscometer to rise and fall.

[0011] Furthermore, the clamping and fixing assembly includes a guide block, a first clamping arm, a second clamping arm, and a first driving mechanism, wherein the first clamping arm and the second clamping arm are spaced apart and arranged on the guide block, and a clamping space for clamping and fixing the viscometer is formed between the first clamping arm and the second clamping arm;

[0012] The first clamping arm is movably engaged with the guide block, the second clamping arm is fixedly engaged with the guide block, the first driving mechanism is fixedly provided on the guide block and is in transmission engagement with the first clamping arm, and the first clamping arm can be driven by the first driving mechanism to move closer to or away from the second clamping arm.

[0013] Furthermore, a guide groove is provided inside the guide block, and a portion of the first clamping arm is provided in the guide groove and can move along the guide groove under the drive of the first driving mechanism.

[0014] Furthermore, the first driving mechanism is fixedly disposed in the guide groove and is located on a side of the first clamping arm facing away from the second clamping arm.

[0015] Furthermore, the first driving mechanism is a linear driving motor or a linear driving cylinder capable of providing active driving force, or the first driving mechanism is an elastic mechanism capable of providing passive driving force.

[0016] Furthermore, a groove structure matching the viscometer is provided on a side surface of the first clamping arm and / or the second clamping arm facing the clamping space.

[0017] Furthermore, a flexible protective structure is provided on a side surface of the first clamping arm and / or the second clamping arm facing the clamping space.

[0018] Furthermore, the lifting assembly includes a second driving mechanism and a lifting guide frame, the second driving mechanism is fixedly arranged on the lifting guide frame, the clamping and fixing assembly is arranged on the lifting guide frame, the second driving mechanism is transmission-connected to the clamping and fixing assembly, and drives the clamping and fixing assembly to move up and down on the lifting guide frame, or the clamping and fixing assembly is fixedly arranged on the lifting guide frame, the lifting guide frame itself is retractable, the second driving mechanism is transmission-connected to the lifting guide frame, and is used to drive the lifting guide frame to retract or extend.

[0019] Furthermore, the lifting guide frame includes a fixed frame, a lifting platform, a guide rail, a connecting plate, a bearing platform, and a support platform. The guide rail is fixed on the fixed frame, the connecting plate is movably connected to the guide rail, and the extension direction of the guide rail and the connecting plate is the same. The lifting platform is movably coordinated with the guide rail, the bearing platform is movably coordinated with the connecting plate, the support platform is fixedly set on the bearing platform, the clamping and fixing assembly is set on the support platform, and a hydraulic rod is also provided between the lifting platform and the bearing platform, and the lifting platform is directly connected to the second driving mechanism.

[0020] Furthermore, a supporting tray is provided on the carrying platform, and the bottom of the viscometer clamped and fixed by the clamping and fixing assembly is provided on the supporting tray.

[0021] Furthermore, the viscometer is a U-shaped structure.

[0022] The technical effects and advantages of this utility model are:

[0023] 1. The utility model adds a stopcock, which has no effect on sample measurement, avoids damage to the capillary tube caused by interference from human factors, is convenient and practical to use, and by arranging the first clamping arm, the second clamping arm, the first protective pad, the elastic block and the second protective pad, when the viscometer needs to be clamped, the first driving mechanism first drives the first clamping arm to extend to the leftmost side of the guide block, the bottom of the viscometer is placed on the supporting tray, and the first driving mechanism is started to drive the first clamping arm to the opposite end of the second clamping arm. The provided protective structure will not cause damage to the viscometer, and solves the problem that the existing sampling device needs to press the second nozzle with the thumb when sampling. If the force is not strong enough, the second nozzle may not be completely blocked. If the force is too strong, the capillary tube is easily broken and damaged due to the glass product. The utility model adds a stopcock to avoid damage to the capillary tube caused by interference from human factors.

[0024] 2. The utility model requires that the viscometer clamped on the base be placed stably, and when it needs to be raised or lowered, the driving mechanism is started to drive the screw to rotate, so that the lifting platform connected to the screw surface with threads slides and drives the hydraulic rod to rise, so that the bearing platforms set on the top of the two first driving mechanisms are raised or lowered. The measurement stability is good through the screw drive, and then the position of the numerical value of the scale can be observed to detect the horizontal deviation value of the bridge. The operation is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a plug-type capillary viscometer provided by the embodiment of the utility model. Figure 1 ;

[0026] Figure 2This is a schematic diagram of the structure of a plug-type capillary viscometer provided by the embodiment of the utility model. Figure 2 ;

[0027] Figure 3 This is a structural schematic diagram of a viscometer, a first pipe port, a second pipe port, a third pipe port and a plug in a plug-type capillary viscometer provided by an embodiment of the utility model;

[0028] Figure 4 This is a side view of a plug-type capillary viscometer provided by an embodiment of the utility model;

[0029] Figure 5 This is a partial structural diagram of a plug-type capillary viscometer provided by an embodiment of the utility model;

[0030] Figure 6 yes Figure 4 Schematic diagram of the structure at A in the middle;

[0031] Figure 7 yes Figure 5 Schematic diagram of the structure at point B. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0033] Example 1

[0034] See also Figure 1 and Figure 2 A plug-type capillary viscometer includes: a viscometer 27, a clamping and fixing component and a lifting component, the clamping and fixing component is used to clamp and fix the viscometer 27; the lifting component is in transmission cooperation with the clamping and fixing component, and is used to drive the clamping and fixing component and the viscometer 27 to rise and fall.

[0035] Please also refer to Figure 3The viscometer 27 has a U-shaped structure. The viscometer 27 has a first pipe section and a second pipe section that are interconnected and arranged in parallel. The end of the first pipe section has a first pipe opening 29, and the end of the second pipe section has a second pipe opening 30. The side of the second pipe section near the second pipe opening 30 also has a third pipe opening 31. The first pipe opening 29, the second pipe opening 30, and the third pipe opening 31 are all directly connected to the tubular cavity inside the viscometer 27. In addition, the viscometer 27 is also provided with a stopcock 32, which is located between the second pipe opening 30 and the third pipe opening 31 and is used to open and close the tubular cavity inside the second pipe section to open or close the second pipe opening 30.

[0036] It should be noted that the specific structure of the stopcock 32 is not specifically limited here. It can be any structure that can achieve the corresponding function. It is a conventional component that can be purchased commercially. Specifically, when sampling, the second nozzle 30 is closed by operating the stopcock 32, the first nozzle 29 is inserted below the liquid level of the sample to be tested, the ear bulb is placed at the third nozzle 31, and the air in the capillary viscometer is extracted to allow the liquid to be tested to enter the capillary viscometer. After sampling is completed, the stopcock 32 is operated again to open the second nozzle 30 and perform sampling. This solves the problem that the existing sampling device needs to press the second nozzle 30 with the thumb when sampling. If the force is not strong enough, the second nozzle 30 may not be completely blocked. If the force is too strong, the capillary viscometer is easily broken and damaged due to being a glass product. The present invention adds a stopcock 32 to avoid the problem of damage to the capillary viscometer caused by human interference.

[0037] The present invention assists in sampling and measuring by adding a stopcock 32. During the measuring process, the stopcock 32 does not have a negative impact on the measuring process, thus avoiding the problem of capillary damage caused by human interference. At the same time, the overall convenience of the device is improved.

[0038] , practical, and through the arrangement of the first clamping arm 22, the second clamping arm 23, the first protective pad 24, the elastic block 25 and the second protective pad 26, when the viscometer 27 needs to be clamped, the first driving mechanism 21 first drives the first clamping arm 22 to extend to the leftmost side of the guide block 19, and the bottom of the viscometer 27 is placed on the supporting tray 14. The first driving mechanism 21 is started to drive the first clamping arm 22 to the end in the direction opposite to the second clamping arm 23. The first protective pad 24 and the second protective pad 26 do not cause damage to the viscometer 27.

[0039] In this embodiment, please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6The clamping and fixing assembly includes a guide block 19, a first clamping arm 22, a second clamping arm 23 and a first driving mechanism 21. The first clamping arm 22 and the second clamping arm 23 are arranged at intervals on the guide block 19, and a clamping space for clamping and fixing the viscometer 27 is formed between the first clamping arm 22 and the second clamping arm 23; wherein, the first clamping arm 22 is movably matched with the guide block 19, and the second clamping arm 23 is fixedly matched with the guide block 19. The first driving mechanism 21 is fixedly set on the guide block 19 and is in transmission cooperation with the first clamping arm 22. The first clamping arm 22 can be driven by the first driving mechanism 21 to approach or move away from the second clamping arm 23, thereby achieving clamping and release of the viscometer. In this embodiment, in order to make the clamping structure formed by the first clamping arm 22 and the second clamping arm 23 more stable, a guide groove 20 is provided inside the guide block 19. A part of the first clamping arm 22 is provided in the guide groove 20 and can move along the guide groove 20 under the drive of the first driving mechanism 21. The first driving mechanism 21 is fixedly provided in the guide groove 20 and is located on the side of the first clamping arm 22 facing away from the second clamping arm 23. On the one hand, the guide groove 20 guides the movement of the first clamping arm 22, and on the other hand, it limits the movement of the first clamping arm 22 to ensure the movement stability of the first clamping arm 22.

[0040] In this embodiment, the first drive mechanism 21 can be a linear drive motor or a linear drive cylinder that can provide active driving force, or the first drive mechanism 21 can be an elastic mechanism that can provide passive driving force, which can be a spring, etc., and the passive driving force is the elastic restoring force of the elastic mechanism.

[0041] In this embodiment, to reduce potential damage to the viscometer caused by the clamping assembly, a flexible protective structure is provided on the surface of the first and second clamping arms 22, 23 facing the clamping space. This flexible protective structure includes a flexible block 25 and a flexible pad 26. The flexible block 25 is fixed to the first and second clamping arms 22, 23, and the flexible pad 26 is provided on the surface of the flexible block 25. The flexible block 25 and the flexible pad 26 may be rubber components, etc. Of course, the flexible pad 26 may also be a sponge, cloth, silicone sheet, etc. It will be understood that this protective structure is preferably provided in the area where the first and second clamping arms 22, 23 directly contact the viscometer.

[0042] In this embodiment, please refer to Figure 7 To enhance the stability of the clamping structure formed by the first and second clamping arms 22 and 23 when securing the viscometer, groove structures 24 are provided on the surfaces of the first and second clamping arms 22 and 23 facing the clamping space, matching the viscometer 27. It is understood that the depth of the groove structures 24 should be less than or equal to the radius of the viscometer tube section. The number of such groove structures can be set based on specific needs and is not specifically limited here. Of course, the aforementioned buffer structure can also be provided within the groove structures 24.

[0043] In this embodiment, please refer to Figure 1-Figure 7 The lifting assembly includes a second driving mechanism 9 and a lifting guide frame. The second driving mechanism 9 is fixedly arranged on the lifting guide frame. The clamping and fixing assembly is arranged on the lifting guide frame. The second driving mechanism 9 is transmission-connected with the clamping and fixing assembly and drives the clamping and fixing assembly to move up and down on the lifting guide frame. Alternatively, the clamping and fixing assembly is fixedly arranged on the lifting guide frame, and the lifting guide frame itself is retractable. The second driving mechanism 9 is transmission-connected with the lifting guide frame and is used to drive the lifting guide frame to retract or retract.

[0044] Specifically, the lifting guide frame includes a fixed frame 7, a lifting platform 11, a guide rail 15, a connecting plate 17, a bearing platform 13, a support platform 18, and a bearing tray 14. The guide rail 15 is fixed on the fixed frame 7, the connecting plate 17 is movably connected to the guide rail 15, and the guide rail 15 and the connecting plate 17 have the same extension direction. The lifting platform 11 and the guide rail 15 are movably matched, the bearing platform 13 and the connecting plate 17 are movably matched, the support platform 18 is fixedly set on the bearing platform 13, the guide block 19 is fixedly set on the support platform 18, and the bottom of the viscometer 27 clamped and fixed by the clamping and fixing assembly is set on the bearing tray 14, and a hydraulic rod 12 is also provided between the lifting platform 11 and the bearing platform 13, and the lifting platform 11 is directly connected to the second driving mechanism 9 in terms of transmission. It should be noted that the connecting plate 17 and the guide rail 15 can be formed into a retractable structure in a manner known in the art. For example, a slider 16 can be movably provided on the guide rail 15, and the connecting plate 17 is fixedly connected to the slider 16, so that the height of the guide rail formed by the connecting plate 17 and the guide rail 15 can be changed.

[0045] Specifically, when the second driving mechanism 9 drives the lifting platform 11 to move upward along the guide rail 15, the hydraulic rod 12 transmits force to the load-bearing platform 13, and the load-bearing platform 13 moves upward together with the support tray 14, the support platform 18 and the clamping and fixing assembly. However, since the hydraulic rod 12 itself can be retracted, the load-bearing platform 13 and the lifting platform 11 are not lifted and lowered synchronously. By setting the hydraulic rod 12, a motion buffer structure can be formed between the load-bearing platform 13 and the lifting platform 11 to avoid impact damage to the viscometer during the lifting process.

[0046] Specifically, the second driving mechanism 9 can be a driving mechanism formed by combining a linear driving motor, a linear driving cylinder or a rotary driving motor and a screw assembly 10 to realize linear motion driving.

[0047] In this embodiment, a scale 8 is further provided on the fixing frame 7 , and the scale 8 is provided in parallel with the guide rail 15 . The lifting height of the lifting platform 11 can be known through the scale 8 .

[0048] In this embodiment, the lifting guide frame also includes a base 1, a fixing frame 7, and a second driving mechanism 9 fixedly arranged on the base 1, support columns 2 are arranged at the four corners of the lower end of the base 1, and support piers 3 are fixed to the lower ends of the support columns 2. Pull rings 4 are fixed on both sides of the base 1. The setting of the pull rings 4 can facilitate the transportation of the device. A controller 5 is also arranged on the base 1, and the controller 5 and the second driving mechanism 9 and the first driving mechanism 21 are electrically connected.

[0049] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A plug-type capillary viscometer, characterized in that include: A viscometer (27), wherein the viscometer (27) comprises a first pipe opening (29), a second pipe opening (30), and a third pipe opening (31) which are communicated with the viscometer's lumen, and the viscometer (27) is further provided with a cock (32), wherein the cock (32) is located between the second pipe opening (30) and the third pipe opening (31) and is used to open and close the second pipe opening (30); A clamping and fixing component, used for clamping and fixing the viscometer (27); The lifting component is in transmission cooperation with the clamping and fixing component and is used to drive the clamping and fixing component and the viscometer (27) to move up and down.

2. The plug-type capillary viscometer according to claim 1, wherein: The clamping and fixing assembly comprises a guide block (19), a first clamping arm (22), a second clamping arm (23) and a first driving mechanism (21); the first clamping arm (22) and the second clamping arm (23) are arranged on the guide block (19) at intervals; a clamping space for clamping and fixing the viscometer (27) is formed between the first clamping arm (22) and the second clamping arm (23); The first clamping arm (22) is movably engaged with the guide block (19), the second clamping arm (23) is fixedly engaged with the guide block (19), the first driving mechanism (21) is fixedly arranged on the guide block (19), and is transmission-engaged with the first clamping arm (22), and the first clamping arm (22) can be driven by the first driving mechanism (21) to approach or move away from the second clamping arm (23).

3. The plug-type capillary viscometer according to claim 2, wherein: A guide groove (20) is provided inside the guide block (19), and a portion of the first clamping arm (22) is provided in the guide groove (20) and can move along the guide groove (20) under the drive of the first driving mechanism (21).

4. The plug-type capillary viscometer according to claim 3, wherein: The first driving mechanism (21) is fixedly arranged in the guide groove (20) and is located on a side of the first clamping arm (22) facing away from the second clamping arm (23).

5. The plug-type capillary viscometer according to claim 2, 3 or 4, characterized in that: The first driving mechanism (21) is a linear driving motor or a linear driving cylinder capable of providing active driving force, or the first driving mechanism (21) is an elastic mechanism capable of providing passive driving force.

6. The plug-type capillary viscometer according to claim 2, 3 or 4, characterized in that: A groove-shaped structure matching the viscometer (27) is further provided on a side surface of the first clamping arm (22) and / or the second clamping arm (23) facing the clamping space.

7. The plug-type capillary viscometer according to claim 2, 3 or 4, characterized in that: A flexible protective structure is also provided on one side surface of the first clamping arm (22) and / or the second clamping arm (23) facing the clamping space.

8. The plug-type capillary viscometer according to claim 1, wherein: The lifting assembly includes a second drive mechanism (9) and a lifting guide frame, wherein the second drive mechanism (9) is fixedly arranged on the lifting guide frame, and the clamping and fixing assembly is arranged on the lifting guide frame. The second drive mechanism (9) is connected to the clamping and fixing assembly in a transmission manner and drives the clamping and fixing assembly to move up and down on the lifting guide frame. Alternatively, the clamping and fixing assembly is fixedly arranged on the lifting guide frame, and the lifting guide frame itself is retractable. The second drive mechanism (9) is connected to the lifting guide frame in a transmission manner and is used to drive the lifting guide frame to retract or extend.

9. The plug-type capillary viscometer according to claim 8, characterized in that: The lifting guide frame includes a fixed frame (7), a lifting platform (11), a guide rail (15), a connecting plate (17), a bearing platform (13), and a support platform (18). The guide rail (15) is fixed on the fixed frame (7), the connecting plate (17) is movably connected to the guide rail (15), and the extension direction of the guide rail (15) and the connecting plate (17) is the same. The lifting platform (11) is movably matched with the guide rail (15), the bearing platform (13) is movably matched with the connecting plate (17), the support platform (18) is fixedly arranged on the bearing platform (13), the clamping and fixing assembly is arranged on the support platform (18), and a hydraulic rod (12) is further arranged between the lifting platform (11) and the bearing platform (13). The lifting platform (11) is directly connected to the second driving mechanism (9) in a transmission manner.

10. The plug-type capillary viscometer according to claim 9, characterized in that: A support tray (14) is also provided on the carrier platform (13), and the bottom of the viscometer (27) clamped and fixed by the clamping and fixing assembly is provided on the support tray (14); And / or, the viscometer (27) is a U-shaped structure.

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