Moisture detector and method for detecting moisture content of polyether product

Abstract

The invention relates to the technical field of moisture detectors, and discloses a moisture detector and a polyether product moisture content detection method.The moisture detector comprises a detector body, a reaction cup installed on the detector body and a stirrer arranged in the reaction cup, and the detector body is further provided with a Hall sensor used for monitoring the wall attaching state of the stirrer. By arranging the Hall sensor and the driving assembly, the wall attaching state of the stirrer can be monitored, the driving assembly is controlled to operate when it is monitored that the stirrer is attached to the wall, the driving assembly operates to force the push block to move and then lift the reaction cup, the center of the flexible membrane is sunken, and then the stirrer slides to the center of the flexible membrane; according to the device, automatic correction work of the stirrer is achieved, then normal operation of the stirrer is guaranteed, the stirring efficiency is improved, a solid detection object can be ground into fine powder by arranging the grinding assembly, the dissolution efficiency of solid detection can be improved, and then the detection time is shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water content detectors, in particular to a water content detector and a method for detecting the water content of polyether products. BACKGROUND

[0002] A Karl Fischer moisture meter is a high-precision moisture determination instrument, which is based on the quantitative chemical reaction of iodine and water, is widely used in the detection of trace moisture in liquids, solids and gases, and mainly consists of a titration system, a reagent system, a control system, auxiliary equipment and the like. An electrical sensor is used in the titration system to detect the titration end point, so as to ensure the accuracy and repeatability of moisture determination. For example, a commonly used double platinum electrode is composed of two platinum wires. A constant small voltage is applied, and in the titration process, when there is free iodine in the system, the iodine undergoes reversible oxidation-reduction reaction on the electrode to generate current. At the titration end point, the concentration of free iodine suddenly increases, and the current significantly increases. The instrument determines the end point accordingly. In the water content detector, a magnetic stirrer is generally used for stirring the reaction liquid in the reaction cup. The principle is to place a magnetic stirrer (magnet wrapped with polytetrafluoroethylene) at the bottom of the reaction tank. The instrument drives the stirrer to rotate by built-in rotating magnetic field, and drives the liquid to flow.

[0003] The above-mentioned water content detector has certain problems in use. Firstly, when using magnetic stirring, the stirrer changes from central rotation to wall-attached eccentric rotation under the influence of factors such as vibration interference, liquid level and solvent concentration. At this time, it will cause problems such as reduced mixing efficiency of the solvent, noise and wear of the stirrer. There is a lack of efficient processing method. In addition, for the determination of the water content of some solid powders, the sample needs to be dissolved before titration. However, some fixed powders have large particle size and long dissolution time, which leads to longer detection time. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a water content detector and a method for detecting the water content of polyether products, which has the advantages of high mixing efficiency, improved dissolution efficiency and the like, and solves the problems of easy wall-attached rotation of the stirrer of the existing water content detector, which affects the mixing efficiency, and long dissolution time for the detection of some solid powders.

[0005] To solve the above technical problems, the present application provides the following technical solutions: a water content detector, comprising a detector main body, a reaction cup mounted on the detector main body, and a stirring rod arranged in the reaction cup, wherein the inside of the reaction cup is fixedly connected with a flexible diaphragm, the bottom center of the flexible diaphragm is fixedly connected with a vertical rod, the vertical rod penetrates through the bottom wall of the reaction cup and is clamped and connected with the detector main body, a Hall sensor for monitoring the wall-attached state of the stirring rod is also mounted on the detector main body, a driving assembly for correcting the wall-attached stirring rod is also mounted on the detector main body, the driving assembly comprises a movable push block, and a grinding assembly is also mounted on the side wall of the detector main body, which is used for grinding solid detection objects;

[0006] When the stirring rod deviates from the wall during stirring, the Hall sensor detects the wall-attached state and controls the driving assembly to operate, and when the driving assembly operates, the push block is driven to move and lift the reaction cup, forcing the center of the flexible diaphragm to be concave, and then making the stirring rod fall to the center of the reaction cup.

[0007] Before dissolving the solid objects, the grinding assembly operates to grind the solid objects into fine powder first, and then the fine powder is stirred and dissolved by the reaction cup and the stirring rod.

[0008] Preferably, the side wall of the reaction cup is fixedly connected with a connecting arm, the connecting arm is provided with a mounting hole, a mounting block is fixedly arranged on the detector main body, a vertical main shaft is fixedly arranged on the mounting block, the connecting arm is sleeved on the main shaft through the mounting hole, and a mounting rod is further fixedly arranged at the bottom of the connecting arm and penetrates through the mounting block and is movably inserted into the mounting block.

[0009] Preferably, a vertical mounting plate is fixedly arranged on the detector main body, the Hall sensor is fixed on the mounting plate, and the detection surface is radially arranged outside the reaction cup.

[0010] Preferably, the driving assembly further comprises a sliding rail fixedly arranged on the detector main body, the sliding rail is radially arranged outside the reaction cup, a bracket is further arranged on the sliding rail, the push block is fixed at one end of the bracket, the other end of the bracket extends into the sliding rail and is slidably connected with the sliding rail, a horizontal screw rod is arranged in the sliding rail, the horizontal screw rod penetrates through the bracket and is threadedly connected with the bracket, both ends of the horizontal screw rod are rotatably connected with the sliding rail, a main motor is fixedly connected inside the detector main body, and the output shaft of the main motor is fixed with the end of the horizontal screw rod.

[0011] Preferably, the grinding assembly comprises a top cover fixedly arranged on the detector main body, a secondary motor is fixed on the top cover, the output shaft of the secondary motor faces downward and is fixed with a stirring rod, a blade is fixed on the stirring rod, and a shell for storing solid detection objects is mounted at the bottom of the top cover.

[0012] Preferably, the top cover edge is provided with a plurality of through holes, the shell edge is fixed with a plurality of vertical screws, the top end of the vertical screw penetrates the through hole of the top cover edge, and the top end of the vertical screw is also screwed with a nut.

[0013] Preferably, the top cover is provided with an exhaust hole, a filter is fixedly installed inside the exhaust hole, the detector main body is internally provided with a blowing assembly, the driving assembly can also drive the blowing assembly to operate, and the blowing assembly operates to blow into the shell, so as to continuously lift the solid detection object in the shell.

[0014] Preferably, the blowing assembly comprises a cylinder fixed in the detector main body, a piston is arranged in the cylinder, a plug rod is fixed to one side of the piston, the plug rod penetrates to the outside of the detector main body at the end away from the piston and is fixed with an end plate, the end plate is arranged on the moving path of the push block, a spring is arranged outside the plug rod, the two ends of the spring are fixed with the piston and the inner wall of the cylinder respectively, an air inlet pipe and an air outlet pipe are fixed to the end of the cylinder away from the end plate, a first one-way valve is arranged at the connection between the air inlet pipe and the cylinder, and the end of the air outlet pipe is fixedly connected with the bottom of the shell.

[0015] Preferably, a secondary stirring assembly is further arranged on the slide rail, the secondary stirring assembly is used for driving the reaction cup to shake, so as to gently stir the detection object, the secondary stirring assembly comprises a first vertical shaft and a second vertical shaft, the bottom end of the first vertical shaft is rotatably connected with the slide rail, a driven bevel gear is fixed to the bottom end of the first vertical shaft, a driving bevel gear is fixed on the horizontal screw rod, the driving bevel gear is meshed with the driven bevel gear, a first supporting rod is fixed to the top end of the first vertical shaft, the bottom end of the second vertical shaft is fixedly connected with the slide rail, a second supporting rod is rotatably connected with the top end of the second vertical shaft, the second supporting rod has the same specification as the first supporting rod, an active rod is connected between the end of the second supporting rod and the end of the first supporting rod, the active rod is rotatably connected with the first supporting rod and the second supporting rod, a secondary shaft is fixed on the active rod, and a plug hole is formed in the active rod.

[0016] The application further discloses a polyether product moisture content detection method.

[0017] Compared with the prior art, the application provides a moisture detector and a polyether product moisture content detection method, and has the following beneficial effects:

[0018] 1. The moisture detector and polyether product moisture content detection method, by setting the Hall sensor and the driving assembly, the wall sticking state of the stirrer can be monitored, and the driving assembly is controlled to operate when the stirrer sticks to the wall, the driving assembly is forced to move and lift the reaction cup, the center of the flexible diaphragm is concave, and then the stirrer falls to the center of the flexible diaphragm, the automatic correction of the stirrer is realized, the normal operation of the stirrer is ensured, the stirring efficiency is improved, the solid detection object can be ground into fine powder by setting the grinding assembly, the dissolution efficiency of the solid detection is improved, and the detection time is reduced.

[0019] 2. The moisture detector and polyether product moisture content detection method, by setting the air blowing assembly, the driving assembly is also driven to operate when the driving assembly operates, the air blowing assembly injects gas into the housing, the efficiency of the detection object contacting the blade is improved, and the grinding efficiency is improved.

[0020] 3. The moisture detector and polyether product moisture content detection method, by setting the secondary stirring assembly, the eccentric circulation of the reaction cup can be driven, the mixture can be mixed more gently, the adaptability to volatile, oxidizable and suspended particles is improved, and the applicability is improved. DETAILED DESCRIPTION

[0021] Figure 1 The three-dimensional structure of the moisture detector of the present application is shown Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the moisture detector of the present application is shown Figure 2 ;

[0023] Figure 3 The top view of the moisture detector of the present application is shown

[0024] Figure 4 The cross-sectional view of the reaction cup of the present application is shown

[0025] Figure 5 The cross-sectional view of the reaction cup of the present application is shown

[0026] Figure 6 The A part of the moisture detector of the present application is shown Figure 5 The structure of the air blowing assembly of the present application is shown

[0027] Figure 7 The structure of the air blowing assembly of the present application is shown

[0028] Figure 8 The assembly structure of the housing of the present application is shown

[0029] Figure 9 The working structure of the secondary stirring assembly of the present application is shown

[0030] In the figure: 1, detector main body; 2, reaction cup; 21, connecting arm; 22, mounting hole; 23, assembly block; 24, main shaft; 25, flexible diaphragm; 26, vertical rod; 27, mounting rod; 3, stirrer; 4, Hall sensor; 5, drive assembly; 51, push block; 52, slide rail; 53, horizontal screw rod; 54, bracket; 55, main motor; 6, grinding assembly; 61, top cover; 62, auxiliary motor; 63, stirring rod; 64, blade; 65, housing; 66, through hole; 67, vertical screw rod; 68, nut; 69, exhaust hole; 610, filter; 7, mounting sheet; 8, air blowing assembly; 81, cylinder; 82, piston; 83, insertion rod; 84, end plate; 85, spring; 86, air inlet pipe; 87, air outlet pipe; 9, auxiliary stirring assembly; 91, first vertical shaft; 92, second vertical shaft; 93, driven bevel gear; 94, driving bevel gear; 95, first support rod; 96, second support rod; 97, movable rod; 98, auxiliary shaft; 99, jack. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] As introduced in the background, the deficiencies in the prior art exist, in order to solve the above technical problems, the present application provides a water content detector and a method for detecting the water content of polyether products.

[0033] Embodiment one: please refer to Figures 1-4 A water content detector, comprising a detector main body 1, a reaction cup 2 mounted on the detector main body 1, and a stirrer 3 arranged in the reaction cup 2, a flexible diaphragm 25 is fixedly connected inside the reaction cup 2, a vertical rod 26 is fixed at the center of the bottom of the flexible diaphragm 25, the vertical rod 26 penetrates through the bottom wall of the reaction cup 2 and is clamped and connected with the detector main body 1, a Hall sensor 4 for monitoring the wall sticking state of the stirrer 3 is also mounted on the detector main body 1, a drive assembly 5 for correcting the wall sticking stirrer 3 is also mounted on the detector main body 1, the drive assembly 5 comprises a movable push block 51, a grinding assembly 6 is also mounted on the side wall of the detector main body 1, and the grinding assembly 6 is used for grinding solid detection objects;

[0034] When the stirrer 3 deviates from the wall during stirring, the Hall sensor 4 detects the wall adhesion state and controls the driving assembly 5 to operate, and when the driving assembly 5 operates, the driving push block 51 moves to lift the reaction cup 2, forcing the flexible diaphragm 25 to be concave at the center, and then the stirrer 3 falls to the center of the reaction cup 2.

[0035] Before dissolving the solid substance, the grinding assembly 6 operates to grind the solid substance into fine powder, and then the fine powder is stirred and dissolved by the reaction cup 2 and the stirrer 3.

[0036] The bottom end of the vertical rod 26 is detachably connected to the detection instrument main body 1, the stirrer 3 is made of polytetrafluoroethylene wrapped magnet, and the stirrer 3 is in the center of the reaction cup 2 and rotates in the normal working state, at which time the stirrer 3 is far away from the Hall sensor 4. When the stirrer 3 adheres to the wall during stirring, it rotates around the center in the reaction cup 2, at which time the stirrer 3 approaches the Hall sensor 4 during movement, and the Hall sensor 4 detects the magnetic signal and controls the driving assembly 5 to operate through the PLC system, and at the same time, the rotating magnetic field in the detection instrument main body 1 is controlled to stop operating. When the driving assembly 5 operates, the push block 51 moves to lift the reaction cup 2, and since the vertical rod 26 is still connected to the detection instrument main body 1 at this time, the edge of the flexible diaphragm 25 moves up but the center is stationary, showing a concave center, and the stirrer 3 on the top of the flexible diaphragm 25 slides to the center of the flexible diaphragm 25, and then the reaction cup 2 is reset by controlling the driving assembly 5, and finally the rotating magnetic field in the detection instrument main body 1 is controlled to operate again. When detecting the solid detection object, the grinding assembly 6 is started to grind the solid detection object into fine powder, and then an appropriate amount of fine powder detection object is weighed and injected into the reaction cup 2 together with the dissolving agent, and then stirred by the stirrer 3 to achieve dissolution.

[0037] By setting the Hall sensor 4 and the driving assembly 5, the wall adhesion state of the stirrer 3 can be monitored, and when the stirrer 3 adheres to the wall, the driving assembly 5 is controlled to operate, and when the driving assembly 5 operates, the push block 51 is forced to move to lift the reaction cup 2, so that the flexible diaphragm 25 is concave at the center, and then the stirrer 3 slides to the center of the flexible diaphragm 25, realizing automatic correction of the stirrer 3, ensuring normal operation of the stirrer 3, improving stirring efficiency, and by setting the grinding assembly 6, the solid detection object can be ground into fine powder, which is conducive to improving the dissolution efficiency of solid detection and reducing the detection time.

[0038] Example two: refer to Figures 5-9Different from the above embodiment, the reaction cup 2 side wall is fixedly connected with a connecting arm 21, the connecting arm 21 is provided with a mounting hole 22, the detector main body 1 is fixedly provided with an assembly block 23, the assembly block 23 is fixedly provided with a vertical main shaft 24, the connecting arm 21 is sleeved on the main shaft 24 through the mounting hole 22, and the connecting arm 21 is further fixedly provided with a mounting rod 27.

[0039] In use, the reaction cup 2 can be mounted and dismounted by sleeving the connecting arm 21 on the main shaft 24 and inserting the mounting rod 27 into the assembly block 23, so that the operation is facilitated.

[0040] Embodiment three, refer to Figures 5-9 Different from the above embodiment, the detector main body 1 is fixedly provided with a vertical mounting sheet 7, the Hall sensor 4 is fixed on the mounting sheet 7 and the detection surface is radially arranged outside the reaction cup 2, and the driving assembly 5 further comprises a sliding rail 52 fixed on the detector main body 1, the sliding rail 52 is radially arranged outside the reaction cup 2, the sliding rail 52 is further provided with a bracket 54, the push block 51 is fixed on one end of the bracket 54, the other end of the bracket 54 extends into the sliding rail 52 and is in sliding connection with the sliding rail 52, the sliding rail 52 is provided with a horizontal screw rod 53, the horizontal screw rod 53 penetrates through the bracket 54 and is in threaded connection with the bracket 54, and both ends of the horizontal screw rod 53 are in rotary connection with the sliding rail 52. The inside of the detector main body 1 is fixedly connected with a main motor 55, and the output shaft of the main motor 55 is fixed with the end of the horizontal screw rod 53.

[0041] The horizontal screw rod 53 and the sliding rail 52 are parallelly distributed, in use, when the stirring rod 3 rotates against the wall, the Hall sensor 4 detects the situation and controls the main motor 55 to operate, the main motor 55 operates to drive the horizontal screw rod 53 to rotate, the horizontal screw rod 53 drives the bracket 54 to move along the sliding rail 52 when rotating, the bracket 54 drives the push block 51 to move towards the mounting rod 27 when moving, the push block 51 is provided with a slope surface, the slope surface contacts the bottom end of the mounting rod 27 to push the mounting rod 27 upwards, thereby driving the connecting arm 21 to move upwards, the connecting arm 21 drives the reaction cup 2 to move upwards when moving upwards, and the reaction cup 2 forces the flexible diaphragm 25 to be concave at the center, so that the stirring rod 3 returns to the center of the reaction cup 2.

[0042] By arranging the Hall sensor 4 and the driving assembly 5, the state that the stirring rod 3 rotates against the wall can be quickly detected, and the driving assembly 5 is used to drive the stirring rod 3 to reset, so that the stirring efficiency is improved.

[0043] Embodiment four, refer to Figures 5-9Different from the above embodiment, the grinding assembly 6 comprises a top cover 61 fixed on the detector main body 1, a sub-motor 62 fixed on the top cover 61, the output shaft of the sub-motor 62 faces downward and is fixed with a stirring rod 63, the stirring rod 63 is fixed with a blade 64, a shell 65 for storing solid detection objects is installed at the bottom of the top cover 61, a plurality of through holes 66 are arranged at the edge of the top cover 61, a plurality of vertical screws 67 are fixed at the edge of the shell 65, the top ends of the vertical screws 67 penetrate through the through holes 66 at the edge of the top cover 61, and nuts 68 are threadedly connected to the top ends of the vertical screws 67.

[0044] In actual application, after rotating the nuts 68, the shell 65 is disassembled, then the solid detection objects are placed in the shell 65, then the shell 65 is reinstalled at the bottom of the top cover 61, then the sub-motor 62 is started, and the sub-motor 62 drives the stirring rod 63 and the blade 64 to rotate the blade 64 when the sub-motor 62 operates, so that the solid detection objects are stirred, and after the stirring is completed, the shell 65 is disassembled again, and the powdery detection objects are taken out.

[0045] By arranging the grinding assembly 6, the solid detection objects can be pre-ground, so that the solid detection objects are in powder form, which is beneficial to the rapid dissolution of the solid detection objects, thereby improving the detection efficiency and shortening the detection time. By arranging the vertical screws 67, the through holes 66 and the nuts 68, the shell 65 is convenient to disassemble and assemble.

[0046] Embodiment five, refer to Figures 5-9 Different from the above embodiment, the top cover 61 is provided with an exhaust hole 69, a filter 610 is fixedly installed in the exhaust hole 69, the detector main body 1 is provided with a blowing assembly 8, the driving assembly 5 can also drive the blowing assembly 8 to operate, and the blowing assembly 8 blows into the shell 65 when the blowing assembly 8 operates, so as to continuously lift the solid detection objects in the shell 65. The blowing assembly 8 comprises a cylinder 81 fixed in the inside of the detector main body 1, a piston 82 arranged in the inside of the cylinder 81, a plug rod 83 fixed on one side of the piston 82, an end plate 84 fixed at the end of the plug rod 83 away from the piston 82 and penetrating through to the outside of the detector main body 1, the end plate 84 being arranged on the moving path of the push block 51, a spring 85 being sleeved on the outside of the plug rod 83, the two ends of the spring 85 being fixed with the piston 82 and the inner wall of the cylinder 81 respectively, an air inlet pipe 86 and an air outlet pipe 87 being fixed at the end of the cylinder 81 away from the end plate 84, a first one-way valve being arranged at the connection between the air inlet pipe 86 and the cylinder 81, one end of the air outlet pipe 87 being fixedly connected with the bottom of the shell 65, and a second one-way valve being arranged at the connection between the air outlet pipe 87 and the shell 65.

[0047] Wherein, while the grinding assembly 6 is running, the driving assembly 5 is also started, when the driving assembly 5 is running, the push block 51 moves and approaches the end plate 84, then the end plate 84 is pushed to move, when the end plate 84 moves, the plug rod 83 moves, the plug rod 83 moves to drive the piston 82 to move, when the piston 82 moves, the spring 85 is stretched and the gas in the cylinder 81 is discharged into the shell 65 through the gas outlet pipe 87 and the second one-way valve, the airflow constantly lifts the solid detection object inside the shell 65, improves the contact efficiency with the blade 64, and further improves the grinding efficiency, the airflow in the shell 65 passes through the filter 610 and the exhaust hole 69, the filter 610 can prevent the powder in the shell 65 from overflowing, then the driving assembly 5 drives the push block 51 away from the end plate 84, at this time the end plate 84 is reset under the elastic force of the spring 85, and then drives the plug rod 83 and the piston 82 to move reversely, so that the airflow is sucked into the cylinder 81 through the air inlet pipe 86 and the first one-way valve, and the above actions are repeated to constantly blow air into the shell 65.

[0048] In the sixth embodiment, referring to Figures 5-9 Different from the above-mentioned embodiments, the slide rail 52 is also provided with a secondary stirring assembly 9, the secondary stirring assembly 9 is used for driving the reaction cup 2 to shake, and then gently stirring the detection object, the secondary stirring assembly 9 comprises a first vertical shaft 91 and a second vertical shaft 92, the bottom end of the first vertical shaft 91 is rotationally connected with the slide rail 52, a driven bevel gear 93 is fixed at the bottom end of the first vertical shaft 91, a driving bevel gear 94 is fixed on the cross screw rod 53, the driving bevel gear 94 is engaged with the driven bevel gear 93, a first supporting rod 95 is fixed at the top end of the first vertical shaft 91, the bottom end of the second vertical shaft 92 is fixedly connected with the slide rail 52, a second supporting rod 96 is rotationally connected with the top end of the second vertical shaft 92, the second supporting rod 96 has the same specification as the first supporting rod 95, an active rod 97 is connected between the end of the second supporting rod 96 and the end of the first supporting rod 95, the active rod 97 is rotationally connected with the first supporting rod 95 and the second supporting rod 96, a secondary shaft 98 is fixed on the active rod 97, and a plug hole 99 is also formed in the active rod 97.

[0049] In the water content detection process, the volatile, oxidizable, containing suspended particles or sensitive to shear force, so not suitable for using the stirrer 3 stirring, at this time the reaction cup 2 connected with the connecting arm 21 is disassembled and mounted on the movable rod 97, when installing, the mounting hole 22 on the connecting arm 21 is sleeved on the auxiliary shaft 98, and the mounting rod 27 is inserted into the insertion hole 99, then the driving assembly 5 is started, when the driving assembly 5 is running, the main motor 55 drives the horizontal screw rod 53 to rotate, the horizontal screw rod 53 rotates and drives the driving bevel gear 94 to rotate, the driving bevel gear 94 rotates and drives the driven bevel gear 93 to rotate, the driven bevel gear 93 rotates and drives the first vertical shaft 91 to rotate, the first vertical shaft 91 rotates and drives the first branch rod 95 to rotate around the end, the first branch rod 95 rotates and drives the movable rod 97 to move, the movable rod 97 moves and drives the second branch rod 96 to move, at this time the movable rod 97 is eccentrically active, and drives the reaction cup 2 and the connecting arm 21 to move eccentrically, and shakes the liquid in the reaction cup 2;

[0050] By setting the auxiliary stirring assembly 9, the reaction cup 2 is driven to move eccentrically and circulate, the mixture is more gently mixed, and the adaptability of volatile, oxidizable, containing suspended particles is improved.

[0051] In the water content detection process, the volatile, oxidizable, containing suspended particles or sensitive to shear force, so not suitable for using the stirrer 3 stirring, at this time the reaction cup 2 connected with the connecting arm 21 is disassembled and mounted on the movable rod 97, when installing, the mounting hole 22 on the connecting arm 21 is sleeved on the auxiliary shaft 98, and the mounting rod 27 is inserted into the insertion hole 99, then the driving assembly 5 is started, when the driving assembly 5 is running, the main motor 55 drives the horizontal screw rod 53 to rotate, the horizontal screw rod 53 rotates and drives the driving bevel gear 94 to rotate, the driving bevel gear 94 rotates and drives the driven bevel gear 93 to rotate, the driven bevel gear 93 rotates and drives the first vertical shaft 91 to rotate, the first vertical shaft 91 rotates and drives the first branch rod 95 to rotate around the end, the first branch rod 95 rotates and drives the movable rod 97 to move, the movable rod 97 moves and drives the second branch rod 96 to move, at this time the movable rod 97 is eccentrically active, and drives the reaction cup 2 and the connecting arm 21 to move eccentrically, and shakes the liquid in the reaction cup 2;

[0052] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A moisture detector, comprising a detector body, a reaction cup mounted on the detector body, and a stirrer disposed in the reaction cup, characterized in that: A flexible diaphragm is fixedly connected to the inside of the reaction cup, and a vertical rod is fixed to the center of the bottom of the flexible diaphragm. The vertical rod passes through the bottom wall of the reaction cup and is connected to the detector body in an engaging manner. The detector body is also equipped with a Hall sensor for monitoring the state of the stirrer adhering to the wall. The detector body is also equipped with a drive assembly for correcting the stirrer adhering to the wall, and the drive assembly includes a movable push block. A grinding assembly is also installed on the side wall of the detector body, and the grinding assembly is used to grind solid test objects; If the stirrer deviates from the wall during stirring, the Hall sensor detects the wall adhesion and controls the operation of the drive assembly. When the drive assembly operates, the push block moves and lifts the reaction cup, forcing the center of the flexible diaphragm to dent, thereby causing the stirrer to fall to the center of the reaction cup. Before dissolving the solid matter, the grinding assembly is operated to grind the solid matter into fine powder, and then the fine powder is stirred and dissolved by the reaction cup and the stirring rod.

2. A moisture detector according to claim 1, characterized in that: The side wall of the reaction cup is fixedly connected to a connecting arm, which is provided with a mounting hole. An assembly block is fixed to the main body of the detector, and a vertically arranged main shaft is fixed to the assembly block. The connecting arm is sleeved on the main shaft through the mounting hole. A mounting rod is also fixed to the bottom of the connecting arm, and the mounting rod passes through the assembly block and is movably connected to the assembly block.

3. The moisture detector according to claim 1, characterized in that: A vertically arranged mounting plate is fixed on the detector body, the Hall sensor is fixed on the mounting plate, and the detection surface is radially arranged outside the reaction cup.

4. A moisture detector according to claim 2, characterized in that: The driving assembly also includes a slide rail fixed on the detector body, the slide rail is radially arranged outside the reaction cup, and a bracket is also provided on the slide rail. The push block is fixed at one end of the bracket, and the other end of the bracket extends into the slide rail and is slidably connected to the slide rail. A cross screw is provided in the slide rail, and the cross screw passes through the bracket and is threadedly connected to the bracket. Both ends of the cross screw are rotatably connected to the slide rail. A main motor is fixedly connected to the inside of the detector body, and the output shaft of the main motor is fixed to the end of the cross screw.

5. The moisture detector according to claim 1, characterized in that: The grinding assembly includes a top cover fixed on the detector body, an auxiliary motor fixed on the top cover, an auxiliary motor output shaft facing downward and fixed with a stirring rod, a blade fixed on the stirring rod, and a shell for storing solid test objects installed at the bottom of the top cover.

6. A moisture detector according to claim 5, characterized in that: The edge of the top cover is provided with a plurality of through holes, the edge of the shell is fixed with a plurality of vertical screws, the top ends of the vertical screws pass through the through holes of the edge of the top cover, and the top ends of the vertical screws are also threadedly connected with nuts.

7. The moisture detector according to claim 6, characterized in that: An exhaust hole is provided on the top cover, and a filter is fixedly installed on the inside of the exhaust hole. An air blower assembly is provided inside the detector body. The operation of the driving assembly can also drive the air blower assembly to operate. When the air blower assembly is in operation, it bulges into the shell, forcing the solid detection objects in the shell to be continuously lifted up.

8. The moisture detector according to claim 7, characterized in that: The air blowing assembly includes a cylinder fixed inside the detector body, a piston is provided inside the cylinder, an insertion rod is fixed to one side of the piston, the insertion rod extends to the outside of the detector body at one end away from the piston and is fixed with an end plate, the end plate is arranged on the moving path of the push block, a spring is sleeved on the outside of the insertion rod, the two ends of the spring are respectively fixed to the piston and the inner wall of the cylinder, an air inlet pipe and an air outlet pipe are fixed to the end of the cylinder away from the end plate, a first one-way valve is provided at the connection between the air inlet pipe and the cylinder, one end of the air outlet pipe is fixedly connected to the bottom of the shell, and a second one-way valve is provided at the connection between the air outlet pipe and the shell.

9. The moisture detector according to claim 4, characterized in that: The slide rail is also equipped with a secondary stirring assembly, which is used to drive the reaction cup to shake, thereby gently stirring the object to be detected. The secondary stirring assembly includes a first vertical shaft and a second vertical shaft, the bottom end of the first vertical shaft is rotatably connected to the slide rail, the bottom end of the first vertical shaft is fixed with a driven bevel gear, the cross screw is fixed with an active bevel gear, the active bevel gear is meshed with the driven bevel gear, the top end of the first vertical shaft is fixed with a first support rod, the bottom end of the second vertical shaft is fixedly connected to the slide rail, the top end of the second vertical shaft is rotatably connected to the second support rod, the second support rod has the same specifications as the first support rod, a movable rod is connected between the end of the second support rod and the end of the first support rod, the movable rod is rotatably connected to the first support rod and the second support rod, a secondary shaft is fixed on the movable rod, and a socket is also provided on the movable rod.

10. A method for detecting the moisture content of a polyether product, characterized by: The method for detecting the moisture content of a polyether product uses a moisture detector as described in any one of claims 1-9.

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