Moisture determination device for microcapsule-coated halogen-free flame retardant

Abstract

The utility model relates to a moisture measuring device for a microcapsule-coated halogen-free flame retardant, which comprises a shell, the rear end of the shell is connected with a holding handle, a positioning seat is arranged in the shell, a positioning space is arranged on the positioning seat, a placing space is arranged on the shell, a partition plate is arranged on the positioning seat, and a moisture detector is limited and locked in the positioning space. A rotating seat is arranged on the front side in the containing space, a clamping sleeve is arranged on the rotating seat, the clamping sleeve positions and clamps the measuring rod, a servo motor is further arranged on the shell, the servo motor is provided with a switch, and the servo motor drives the rotating seat to rotate in two directions so that the measuring rod can swing out of the shell outwards and stretch out of the front end of the shell in the process of swinging around the axis of the rotating seat. The water tank can also be inwards placed into the placing space and is arranged on one side of the moisture detector in parallel; the side wall of one side, corresponding to the placing space, of the shell is provided with an avoiding notch for avoiding the swing path of the measuring rod. The shell and the positioning seat are used for effectively protecting the moisture detector.

Description

Technical Field

[0001] This utility model relates to the field of flame retardant moisture detection technology, specifically to a moisture measuring device for microcapsule-encapsulated halogen-free flame retardants. Background Technology

[0002] Microencapsulation technology is a technique that uses polymeric materials to encapsulate dispersed liquid, solid, and gaseous materials to form tiny particles. The capsule wall protects the core material; however, under certain conditions, the capsule wall can be broken down, releasing the active ingredients from the core. Adding halogen-free flame retardants to combustible materials can form a glassy or stable foam coating at high temperatures, isolating oxygen and providing heat insulation, oxygen barrier properties, and preventing the escape of combustible gases, thus achieving flame retardancy.

[0003] Because red phosphorus has strong water absorption, it loses its fluidity due to increased viscosity when the ambient humidity is too high. Over time, the red phosphorus on the surface of the material will oxidize due to moisture absorption, preventing the product from being corroded and affecting its original performance. Therefore, in order to detect the humidity and moisture content of the coated flame retardant during the research and development and product manufacturing process, it is necessary to manually measure the moisture content of the product.

[0004] In existing technologies, moisture detectors are generally used for testing. These detectors consist of a main body and a measuring rod. During testing, a worker holds the moisture detector in one hand and the measuring rod in the other, inserting it into the flame retardant to measure the water content. However, this process restricts the worker's hands, making it difficult to perform other operations such as separating the product for observation or recording relevant data. Furthermore, halogen-free flame retardants are in powder form, and handling them with both hands easily causes the flame retardant to adhere to the moisture detector, thus failing to provide protective functionality. Utility Model Content

[0005] The purpose of this invention is to provide a moisture determination device for microencapsulated halogen-free flame retardants, in order to solve the problem that the moisture content determination process of halogen-free flame retardants in the prior art lacks protection and is affected by the hands-on operation.

[0006] To solve the above problems, the moisture determination device for microcapsule-encapsulated halogen-free flame retardants involved in this utility model adopts the following technical solution:

[0007] A moisture measuring device for microencapsulated halogen-free flame retardants includes a housing with a handle connected to its rear end. A positioning seat with a positioning space is located inside the housing. A placement space is located outside the positioning seat on the housing. A partition on the positioning seat separates the positioning space and the placement space. A moisture detector is locked within the positioning space. A rotating seat is located at the front of the placement space, with a clamp on the rotating seat. The clamp clamps the end of the measuring rod of the moisture detector. A servo motor, which drives the rotating seat, is also mounted on the housing. The servo motor is equipped with a switch and drives the rotating seat to rotate bidirectionally. During the swinging motion of the measuring rod around the axis of the rotating seat, it can swing outwards from the housing and extend beyond the front end of the housing, or swing inwards into the placement space and be arranged parallel to one side of the moisture detector. A clearance notch is provided on the side wall of the housing corresponding to the placement space to avoid the swinging path of the measuring rod.

[0008] Furthermore, the positioning seat is a rectangular plate structure, the rotating seat is rotatably assembled on one side of the corner of the positioning seat, the servo motor and the switch are both fixed inside the housing, and the switch is set on the grip handle.

[0009] Furthermore, the rotating seat is arranged on the right front side of the positioning seat, and the right end portions of the right side wall and the front side wall of the housing are arranged in an open manner to form the clearance notch.

[0010] Furthermore, the rear end of the positioning seat is provided with a positioning slot for the rear end of the moisture detector to be horizontally inserted, and the left and right sides of the positioning seat are provided with limiting bosses that cooperate with the left and right side walls of the moisture detector. The front end of the positioning seat has elastic pins that limit the positioning seat to the front and rear stops.

[0011] Furthermore, anti-collision pads are provided on the opposite side walls of the limiting boss and on the bottom wall of the positioning slot.

[0012] Furthermore, the moisture detector is magnetically connected to the positioning slot.

[0013] Furthermore, the bottom of the housing is provided with a motor receiving groove and a wire groove, and the bottom of the housing is sealed with a base plate.

[0014] Furthermore, the top of the housing is open, and a protective cover is hinged to one side of the housing. An observation window is provided on the protective cover. When the protective cover is closed, the moisture detector is completely protected within the positioning space.

[0015] Furthermore, the housing is equipped with position sensors at both ends corresponding to the clearance notch. The position sensors are used to detect the swing position of the measuring rod. The housing is also equipped with a controller, which is connected to the sensor for sampling and connected to the servo motor for control, so as to limit the bidirectional swing limit angle of the measuring rod.

[0016] The beneficial effects of this utility model are as follows: Compared with the prior art, the moisture measuring device for microencapsulated halogen-free flame retardants involved in this utility model achieves positioning and external protection of existing moisture detectors through the shell and positioning seat; at the same time, through the cooperation of the rotating seat and the measuring rod, the automatic swinging out and swinging in of the measuring rod can be controlled. When measuring moisture, only one hand is needed to hold the moisture detector, and the measurement can be achieved by controlling the swinging out and inserting the measuring rod into the flame retardant, freeing up the other hand to perform other work. At the same time, the receiving space of the measuring rod is isolated from the moisture detector through the side wall of the positioning seat, effectively preventing the adhering flame retardant from directly contacting the moisture detector. The shell and positioning seat provide effective protection for the moisture detector. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below:

[0018] Figure 1 This is a schematic diagram of a specific embodiment of the moisture determination device for microcapsule-encapsulated halogen-free flame retardant of this utility model.

[0019] Figure 2 for Figure 1 A schematic diagram of the structure when the protective cover is open;

[0020] Figure 3 for Figure 2 Diagram of the extended posture of the measuring rod;

[0021] Figure 4 for Figure 2 Schematic diagram of the assembly structure of the middle shell and the positioning seat;

[0022] Figure 5 for Figure 2 A half-section view.

[0023] Explanation of reference numerals in the attached drawings: 1-Housing 1; 11-Placement space 11; 12-Avoidance notch 12; 13-Holding handle 13; 14-Position sensor 14; 15-Motor receiving slot 15; 16-Wire groove 16; 2-Protective cover 2; 21-Observation window 21; 3-Positioning seat 3; 31-Positioning space 21; 32-Positioning slot 32; 33-Limiting boss 33; 34-Elastic pin 34; 35-Anti-collision pad 35; 36-Partition 36; 37-Magnetic structure 37; 4-Rotating seat 4; 5-Moisture detector 5; 6-Measuring rod 6; 7-Clamping sleeve 7; 8-Servo motor 8; 9-Base plate 9; Detailed Implementation

[0024] To make the technical objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model; that is, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] This invention relates to a specific embodiment of a moisture determination device for microencapsulated halogen-free flame retardants. In existing technologies, moisture detection requires the operator to hold both the detector and the measuring rod 6 with both hands, making it impossible to free up hands for data recording or adjusting the position of the sample. The measuring rod 6 is stored separately from the instrument and is easily contaminated with flame retardant powder. Repeated handling during operation causes powder to adhere to the instrument surface, accumulating over time and affecting detection accuracy. Furthermore, in situations requiring rapid switching between detection and storage states, traditional structures cannot achieve automated operation.

[0026] The moisture determination device for microencapsulated halogen-free flame retardants proposed in this application, such as... Figures 1 to 5 As shown, the device includes a housing 1, with a handle 13 connected to the rear end of the housing 1. A positioning seat 3 is provided inside the housing 1, and the positioning seat 3 has a positioning space 21. A placement space 11 is located outside the positioning seat 3 on the housing 1. The positioning seat 3 has a partition 36 for separating the positioning space 21 and the placement space 11. A moisture detector 5 is locked and limited inside the positioning space 21. A rotating seat 4 is located on the front side of the placement space 11. A clamp 7 is provided on the rotating seat 4, and the end of the measuring rod 6 of the moisture detector 5 is positioned and clamped on the clamp 7. The housing 1 is also provided with a servo motor 8 that drives the rotating seat 4. The servo motor 8 is equipped with a switch. The servo motor 8 drives the rotating seat 4 to rotate bidirectionally, so that the measuring rod 6 can swing out of the housing 1 and extend the front end of the housing 1 during the swinging process around the axis of the rotating seat 4, and can also swing inward into the placement space 11 and be arranged parallel to one side of the moisture detector 5. A clearance notch 12 is provided on the side wall of the housing 1 corresponding to the placement space 11 to avoid the swinging path of the measuring rod 6.

[0027] The housing 1 serves as the external protective structure, with its internal space divided into an instrument storage area and a measuring rod 6 movement area, providing physical isolation. The positioning seat 3 is a support structure fixed within the housing 1, which can be installed via bolts or clips to limit the position of the moisture analyzer 5 and prevent displacement during transportation. The servo motor 8 is a drive device with precise angle control; it can be a DC motor with an encoder, connected to the rotating base 4 via a gear set to achieve forward and reverse rotation control.

[0028] The handle 13 and the rear end of the housing 1 form an ergonomic grip area, allowing the operator to control the entire device with one hand. The positioning space 21, through a limiting structure, forms a tight fit with the moisture detector 5, maintaining instrument stability during testing. The rotating base 4 and the clamp 7 constitute the fixed fulcrum of the measuring rod 6. The servo motor 8 drives the rotating base 4 to rotate through a reduction mechanism, causing the measuring rod 6 to complete a 0-180 degree swing motion. When the measuring rod 6 swings outward to the front end of the housing 1, its end can extend into the flame retardant to perform testing; when it swings inward to the placement space 11, the measuring rod 6 is parallel to the moisture detector 5, avoiding occupying external space. The length of the clearance notch 12 coincides with the area swept by the swing path of the measuring rod 6, eliminating frictional resistance with the housing 1 during movement. This allows for one-handed operation, freeing up the other hand for auxiliary tasks. In traditional structures, the measuring rod 6 is easily contaminated when stored exposed. The separate spatial layout isolates the measuring rod 6 from the instrument, reducing cross-contamination of flame retardant powder. Traditional manual operation cannot achieve rapid state switching. This solution uses a motor drive to automate the deployment and retraction of the measuring rod 6, improving operational efficiency. The partition 36 effectively isolates the instrument body from the measuring components, reducing maintenance and cleaning frequency. The avoidance notch 12 design prevents mechanical interference and extends the device's lifespan.

[0029] In a preferred embodiment, position sensors 14 are provided at both ends of the housing 1 corresponding to the clearance notch 12. The position sensors 14 are used to detect the swing position of the measuring rod 6. A controller is provided inside the housing 1. The controller is connected to the sensor sampling and is connected to the servo motor 8 to control and limit the bidirectional swing limit angle of the measuring rod 6.

[0030] When the measuring rod 6 swings outward, the positioning sensor 14 detects that the rod has reached the predetermined position at the front end of the notch and sends a stop signal to the controller. The controller immediately cuts off the power to the servo motor 8, stopping the measuring rod 6 in its fully extended working position. When the measuring rod 6 swings inward, the sensor at the end of the notch detects that the rod is parallel to the side wall of the moisture detector 5, and the controller stops the motor to ensure accurate placement. This process eliminates the need for manual judgment of the angle of the measuring rod 6, thus eliminating the risk of mechanical deformation due to improper operation. A preset logic program determines whether the limit condition has been met and outputs a relay contact signal to cut off the power supply to the motor.

[0031] When retracted, the measuring rod 6 can be precisely aligned with the side wall of the moisture analyzer 5, ensuring the compactness of the equipment; when extended, it can remain stably in the detection position, ensuring the reliability of the measurement data. This control method is particularly suitable for powdered flame retardant testing scenarios that require frequent switching of the measuring rod 6's state, effectively improving operational efficiency and extending the equipment's lifespan.

[0032] In a preferred embodiment, to optimize the internal space of the housing 1, the positioning seat 3 is a rectangular plate structure, and the rotating seat 4 is rotatably mounted on one side of the corner of the positioning seat 3. The servo motor 8 and the switch are both fixed inside the housing 1, with the switch located on the grip handle 13. The positioning seat 3 provides uniform force support for the moisture detector 5 through its flat surface. The rotating seat 4 is positioned on one side so that the swing trajectory of the measuring rod 6 avoids the main load-bearing area of ​​the positioning space 21. The switch is located in the thumb operating area of ​​the grip handle 13, such as the top of the handle or in a groove on the side wall, and is connected to the servo motor 8 via a wire or wireless signal. When the operator holds the handle 13 with one hand, the servo motor 8 can be triggered by the thumb touch switch to drive the rotating seat 4, causing the measuring rod 6 to swing outward to the detection position or retract inward into the housing 1. Through structural layout optimization, the retraction and extension of the measuring rod 6 are automated, allowing the operator to complete the entire detection process with only one hand.

[0033] In a preferred embodiment, the rotating seat 4 is arranged on the right front side of the positioning seat 3, and the right end portions of the right side wall and front side wall of the housing 1 are open to form a clearance notch 12. When the servo motor 8 drives the rotating seat 4 to rotate clockwise, the measuring rod 6 swings outward along the clearance notch 12 to the front end of the housing 1 for detection; when rotating counterclockwise, the measuring rod 6 is retracted inward through the clearance notch 12 to a position parallel to the moisture detector 5. The right side wall and front side wall of the housing 1 form only partial openings at the right end, and the area of ​​these openings is controlled to the minimum size that only allows the measuring rod 6 to pass through. This minimizes the possibility of external dust entering the housing 1 while completing the motion clearance function. This effectively solves the problem of mechanical interference between the measuring rod 6 and the housing 1 during the swinging process, and significantly reduces the risk of external dust entering the device through the opening of the housing 1. When the measuring rod 6 is in the retracted state, it can be completely hidden inside the housing 1, preventing flame retardant powder from adhering to the surface of the detector and ensuring the accuracy of the moisture detection data.

[0034] In a preferred embodiment, the positioning base 3 has a positioning slot 32 at its rear end for horizontal insertion of the moisture detector 5. The positioning base 3 has limiting bosses 33 on its left and right sides that engage with the left and right side walls of the moisture detector 5. The positioning base 3 has elastic pins 34 at its front end that provide front and rear stop limits. The rear end of the moisture detector 5 is horizontally inserted into the positioning slot 32, where its longitudinal movement is restricted by the slot walls. The side walls contact the inner walls of the limiting bosses 33, forming a lateral clamping space. The front end is mechanically stopped by the elastic pins 34. These three limiting structures together constitute a three-dimensional fixing system, eliminating longitudinal, lateral, and axial displacements of the detector during the swing of the measuring rod 6. The horizontal insertion method keeps the detector's mounting reference surface parallel to the plane of the positioning base 3, ensuring that the swing angle of the measuring rod 6 is not affected by the tilt of the main body. The front-to-back distance between the elastic pins 34 and the positioning slot 32 matches the length of the detector, preventing positional deviations of the measuring rod 6 caused by forward and backward movement.

[0035] Through the synergistic effect of slots, bosses, and elastic pins 34, a multi-dimensional constraint mechanism is formed, which achieves rigid fixation while maintaining the characteristics of quick assembly and disassembly, and avoids measurement errors caused by displacement of the instrument body.

[0036] In a preferred embodiment, anti-collision pads 35 are provided on the opposite side walls of the limiting boss 33 and on the bottom wall of the positioning slot 32. When the moisture detector 5 is installed into the positioning slot 32, its bottom contacts the anti-collision pads 35 on the bottom wall of the slot, and the vertical insertion impact force is dispersed by the compression of the elastic material. When the detector is constrained by the limiting bosses 33 on both sides, the collision energy generated by the lateral displacement is buffered by the shear deformation of the side wall anti-collision pads 35. The two anti-collision pads 35 work together to ensure that the force in all directions on the detector during installation and positioning is converted into elastic potential energy, avoiding mechanical damage caused by direct contact between rigid structures.

[0037] Furthermore, a technical solution is proposed whereby the moisture detector 5 and the positioning slot 32 are connected by a magnetic structure 37. In this embodiment, the magnetic structure 37 connects the moisture detector 5 by embedding a permanent magnet in the bottom of its housing, while a magnetically conductive metal plate is placed at a corresponding position on the bottom wall of the positioning slot 32. When the moisture detector 5 is inserted into the positioning slot 32, a magnetic attraction is generated between the permanent magnet and the magnetically conductive metal plate, causing the detector to be stably attached to the slot. During the swinging of the measuring rod 6 or the movement of the device, the magnetic attraction can counteract the displacement caused by external vibration or impact, preventing the detector from becoming loose between the detector and the slot. When it is necessary to replace or maintain the detector, the operator only needs to apply a vertically upward pulling force to release the attraction, without operating mechanical latches or threaded parts. This meets the need for rapid positioning and disassembly.

[0038] Furthermore, to facilitate the storage of signal cables, the bottom of housing 1 is provided with a motor receiving slot 15 and a cable tray 16, and a base plate 9 seals the bottom of housing 1. The servo motor 8 is fixed within the motor receiving slot 15, and its output shaft is connected to the rotating base 4. The motor's power supply cable and signal cable are constrained within the cable tray 16 and extend along a predetermined path to the controller. The cable tray 16's orientation corresponds to the position of the motor receiving slot 15, and the cables are neatly organized within the cable tray 16, preventing interference with the movement trajectory of the measuring rod 6. After the base plate 9 covers the bottom of housing 1, the motor receiving slot 15 and the cable tray 16 form a closed space, preventing flame retardant powder or external dust from entering the interior of housing 1. Simultaneously, removing the base plate 9 allows for quick exposure of the motor and cables, facilitating inspection and maintenance. This effectively prevents flame retardant powder from entering from the bottom of housing 1 and contaminating internal components, avoiding cable entanglement or wear due to exposed or disordered distribution. Furthermore, removing the base plate 9 simplifies the motor maintenance process, allowing maintenance operations to be completed without completely disassembling housing 1.

[0039] In a preferred embodiment, the top of the housing 1 is open, and a protective cover 2 is hinged to one side of the housing 1. An observation window 21 is provided on the protective cover 2. When the protective cover 2 is closed, the moisture detector 5 is completely protected within the positioning space 21. The transparent material of the observation window 21 allows for real-time reading of data on the instrument's display screen without repeatedly opening and closing the protective cover 2. The closable protective cover 2 forms a physical isolation barrier. When the protective cover 2 is closed, its edge forms a contact seal with the edge of the opening in the housing 1 through a rubber sealing strip, preventing external dust from entering the positioning space 21.

[0040] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this utility model. Any equivalent substitutions and modifications or partial substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of protection of the claims of this utility model.

Claims

1. A moisture determination device for microencapsulated halogen-free flame retardants, characterized in that, The device includes a housing with a handle connected to its rear end. A positioning seat with a positioning space is located inside the housing. A placement space is located outside the positioning seat on the housing. A partition separates the positioning space and the placement space. A moisture meter is locked within the positioning space. A rotating seat is located at the front of the placement space, with a clamp on the rotating seat. The clamp clamps the end of the measuring rod of the moisture meter. A servo motor, which drives the rotating seat, is equipped with a switch. The servo motor drives the rotating seat to rotate bidirectionally, allowing the measuring rod to swing outwards from the housing and extend beyond its front end, or to swing inwards into the placement space and be arranged parallel to one side of the moisture meter. A clearance notch is provided on the side wall corresponding to the placement space to avoid the swing path of the measuring rod.

2. The moisture determination device for microencapsulated halogen-free flame retardants according to claim 1, characterized in that, The positioning base is a rectangular plate structure, and the rotating base is rotatably assembled on one side of the corner of the positioning base. The servo motor and the switch are both fixed inside the housing, and the switch is set on the grip handle.

3. The moisture determination device for microencapsulated halogen-free flame retardants according to claim 2, characterized in that, The rotating seat is arranged on the right front side of the positioning seat, and the right end portions of the right side wall and the front side wall of the housing are arranged in an open manner to form the clearance notch.

4. The moisture determination device for microencapsulated halogen-free flame retardants according to claim 2, characterized in that, The rear end of the positioning seat is provided with a positioning slot for horizontal insertion of the rear end of the moisture detector. The left and right sides of the positioning seat are provided with limiting bosses that cooperate with the left and right side walls of the moisture detector. The front end of the positioning seat has elastic pins that limit the positioning seat to the front and rear stops.

5. The moisture determination device for microencapsulated halogen-free flame retardants according to claim 4, characterized in that, Anti-collision pads are provided on the opposite side walls of the limiting boss and on the bottom wall of the positioning slot.

6. The moisture determination device for microencapsulated halogen-free flame retardants according to claim 4, characterized in that, The moisture detector and the positioning slot are connected by magnetic adsorption.

7. The moisture determination device for microencapsulated halogen-free flame retardants according to claim 1, characterized in that, The bottom of the housing is provided with a motor receiving slot and a wire slot, and the bottom of the housing is sealed with a base plate.

8. The moisture determination device for microencapsulated halogen-free flame retardants according to claim 1, characterized in that, The top of the housing is open, and a protective cover is hinged to one side of the housing. An observation window is provided on the protective cover. When the protective cover is closed, the moisture detector is completely protected within the positioning space.

9. The moisture determination device for microencapsulated halogen-free flame retardants according to claim 1, characterized in that, Position sensors are also provided at both ends of the housing corresponding to the clearance notch. The position sensors are used to detect the swing position of the measuring rod. A controller is also provided inside the housing. The controller is connected to the sampling of the sensors and to the control of the servo motor to limit the bidirectional swing limit angle of the measuring rod.

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