Plastic particle containing device with moisture-proof structure

Abstract

The utility model relates to the field of plastic particle holding device discloses a plastic particle holding device with moistureproof structure, including bottom disc, support column, holds the jar, jar cover, rotates the handrail, feed port, bearing and discharge valve, both ends of jar cover upper end surface all are fixedly connected with quick detachable mechanism, the quick detachable mechanism includes the mounting seat, both sides of mounting seat outer wall lower extreme all are fixedly connected with the threaded bar. In the utility model, the device is through setting the quick detachable mechanism that is composed of slip ring, arc insert stick, L type bolt etc.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle holding devices, and in particular to a plastic particle holding device with a moisture-proof structure. Background Technology

[0002] During storage and before processing, plastic particles are susceptible to absorbing moisture due to environmental humidity, leading to decreased melting performance and air bubbles in molded products. Therefore, moisture-proof storage devices are fundamental equipment in the plastics processing industry. Existing moisture-proof storage devices typically use a sealed structure to prevent external moisture intrusion and incorporate moisture-absorbing components inside to enhance moisture protection. This is often achieved by fixing a carrier to the inside of the can lid or can wall, encapsulating the desiccant within the carrier, and creating vents on the carrier surface to ensure moisture absorption. The connection between the carrier and the device is usually secured with bolts or simple clips for easy replacement of the desiccant later.

[0003] Existing technologies for portable moisture-proof containers commonly used in small and medium-sized plastic processing production lines have significant shortcomings: First, the desiccant carriers are mostly fixed installations, requiring the removal of multiple fasteners when replacing the desiccant, which is cumbersome and time-consuming. During disassembly, the device's seal is compromised, making it easy for external moisture to enter. Second, the carrier's fixed position means the desiccant can only act on a localized area inside the device, resulting in poor moisture absorption for plastic particles far from the carrier and creating moisture-proof blind spots. Third, the sealing structure of some carriers is inadequate, allowing desiccant particles to leak through vents, contaminating plastic particles and affecting product quality.

[0004] Therefore, those skilled in the art have provided a plastic particle holding device with a moisture-proof structure to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a plastic particle container with a moisture-proof structure. The device employs a quick-assembly and disassembly mechanism consisting of a slip ring, an arc-shaped insert, and an L-shaped pin. Rotating the slip ring allows the arc-shaped insert and L-shaped pin to engage or disengage. Combined with the positioning and fixing of the collar and the clamping nut, the container can be assembled and disassembled without removing multiple fasteners, significantly simplifying the desiccant replacement process and reducing the time required to break the device's seal. This significantly reduces the risk of external moisture intrusion and improves the device's practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A plastic particle holding device with a moisture-proof structure includes a chassis, a support column, a holding tank, a tank lid, a rotating handle, a feed inlet, a bearing, and a discharge valve. Both ends of the upper surface of the tank lid are fixedly connected to a quick-release mechanism. The quick-release mechanism includes a mounting base. Threaded rods are fixedly connected to both sides of the lower end of the outer wall of the mounting base. A clamping nut is threaded to one end of each threaded rod. Insertion sleeves are fixedly connected to both sides of the upper end of the outer wall of the mounting base. A slip ring is rotatably connected to the middle of the outer wall of the mounting base. Extension rods are fixedly connected to both ends of the upper surface of the slip ring. An arc-shaped extension rod is fixedly connected to one side of the upper end of its outer wall. The device has a shaped insert rod, with collars fixedly connected to both ends of the lower end face of the slip ring. A positioning groove is provided in the middle of one side end face of the collar. A connecting part is engaged with the upper end of the mounting base. L-shaped pins are fixedly connected to both sides of the lower end of the outer wall of the connecting part. A placement cylinder is fixedly connected to the lower end of the connecting part. A closed arc plate is rotatably connected to the middle and lower parts of the outer wall of the placement cylinder. Multiple placement chambers are provided on one side end face of the placement cylinder and one side end face of the closed arc plate. Multiple through holes are provided on the middle and lower parts of the outer wall of the placement cylinder and the outer wall of the closed arc plate. Multiple fixing bolts are threadedly connected to one side of the outer wall of the placement cylinder.

[0008] Through the above technical solution, the device is equipped with a quick disassembly and assembly mechanism consisting of a slip ring, an arc-shaped insert rod, and an L-shaped pin. Rotating the slip ring allows the arc-shaped insert rod to engage or disengage from the L-shaped pin. Combined with the positioning and fixing of the collar and the clamping nut, the disassembly and assembly of the placement cylinder can be completed without disassembling multiple fasteners. This greatly simplifies the desiccant replacement process and reduces the time required to break the device's sealing state, significantly reducing the risk of external moisture intrusion and improving the device's practicality.

[0009] Furthermore, multiple support columns are fixedly connected around the upper surface of the chassis, and a container is fixedly connected to the upper end of each support column.

[0010] Through the above technical solution, the device can easily drive the lid to rotate by setting a bearing between the container and the lid, and the lid can rotate in conjunction with the rotating handle on the lid. The lid drives the placement cylinder fixed at the lower end to rotate synchronously. The desiccant in the placement chamber of the placement cylinder and the closed arc plate can fully contact the plastic particles in different areas of the container through the through hole, effectively eliminating the moisture-proof blind spots caused by the fixed carrier, so that the moisture inside the device is evenly absorbed, the moisture-proof effect is more stable, and the practicality of the device is improved.

[0011] Furthermore, a bearing is fixedly connected to the upper end of the outer wall of the container, a container cover is fixedly connected to the outer wall of the bearing, a rotating handle is fixedly connected to the four sides of the upper surface of the container cover, a feed inlet is opened in the middle of the upper surface of the container cover, and a discharge valve is provided in the middle of the lower surface of the container.

[0012] Through the above technical solution, the bearing provides stable rotation support for the can lid, reducing the frictional resistance when the can lid rotates. The operator can easily drive the can lid to rotate by rotating the handle, which in turn drives the internal placement cylinder to rotate synchronously to optimize the moisture absorption effect. The feed port provides a convenient channel for the feeding of plastic particles, and the discharge valve can accurately control the discharge amount of particles, realizing convenient feeding and discharging and flexible operation of the device.

[0013] Furthermore, the width of the opening on one side of the outer wall of the collar is consistent with the diameter of the threaded bar, and the diameter of the clamping nut is consistent with the bottom diameter of the positioning groove;

[0014] Through the above technical solutions, the precise matching of dimensions enables the collar to be stably fitted onto or detached from the threaded bar, avoiding wobbling and deviation during fitting. At the same time, the clamping nut can be completely embedded in the positioning groove, ensuring that the clamping force of the clamping nut on the collar is evenly distributed, thus improving the structural stability of the quick-assembly and disassembly mechanism after connection.

[0015] Furthermore, one end of the arc-shaped plug penetrates one side of the plug tube and forms a locking connection with one end of the L-shaped pin, and the two arc-shaped plugs and the L-shaped pins are locked in opposite directions;

[0016] Through the above technical solution, the reverse engagement structure design allows the two arc-shaped inserts to limit the L-shaped pin from different directions, effectively preventing the connection from becoming loose on one side due to vibration or external force, significantly improving the reliability of the engagement between the mounting base and the connection, and preventing the placement cylinder from falling off.

[0017] Furthermore, after the slip ring rotates to a certain angle, one end of the arc-shaped insert rod and one end of the L-shaped pin form a locking connection. The collar is sleeved on the middle of the outer wall of the threaded rod. The clamping nut is tightened and abuts against the bottom surface of the positioning groove. When the clamping nut is loosened, the collar disengages from the threaded rod, and one end of the arc-shaped insert rod disengages from one end of the L-shaped pin.

[0018] The above technical solution achieves integrated operation of the quick disassembly and assembly mechanism. Simply rotating the slip ring is enough to simultaneously engage the arc-shaped insert and position the collar, and tightening the clamping nut completes the installation of the placement cylinder. Loosening the nut and rotating the slip ring in the opposite direction releases the fixation, simplifying the disassembly and assembly process when replacing the desiccant and improving maintenance efficiency.

[0019] Furthermore, one end of the fixing bolt penetrates one side of the outer wall of the placement cylinder and forms a threaded connection with one side of the outer wall of the closed arc plate, and the through hole communicates with the placement chamber;

[0020] Through the above technical solution, the fixing bolts can firmly lock the placement cylinder and the closed arc plate, preventing them from separating during the operation of the device and ensuring that the desiccant in the placement chamber will not fall out; the through hole and the connection design of the placement chamber allow the desiccant to fully contact the air in the container, maximizing the moisture absorption area and improving the moisture-proof effect. At the same time, the closed arc plate can be opened by unscrewing the fixing bolts to replace the desiccant.

[0021] Furthermore, the upper end of the placement cylinder passes through the middle of the upper end face of the mounting base and forms a fixed connection with the middle of the lower end face of the connecting part, and a sealing ring is fixedly connected to the lower end of the outer wall of the connecting part.

[0022] Through the above technical solution, the fixed connection between the placement cylinder and the connecting part ensures that the two are subjected to force synchronously, avoiding relative displacement that could cause structural loosening; the sealing ring at the lower end of the connecting part can fill the gap between the connecting part and the mounting base, preventing external moisture from entering the container from the connection position, further enhancing the overall sealing and moisture-proof performance of the device.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes a plastic particle holding device with a moisture-proof structure. The device is equipped with a quick disassembly and assembly mechanism consisting of a slip ring, an arc-shaped insert rod, and an L-shaped pin. Rotating the slip ring can achieve the engagement or disengagement of the arc-shaped insert rod and the L-shaped pin. With the positioning and fixation of the collar and the clamping nut, the disassembly and assembly of the holding cylinder can be completed without disassembling multiple fasteners, which greatly simplifies the desiccant replacement process and reduces the time of damage to the device's sealing state. This significantly reduces the risk of external moisture intrusion and improves the practicality of the device.

[0025] 2. This utility model proposes a plastic particle holding device with a moisture-proof structure. The device uses a bearing between the holding tank and the lid, and the lid can be easily rotated by a rotating handle on the lid. The lid drives the placement cylinder fixed at the lower end to rotate synchronously. The desiccant in the placement chamber of the placement cylinder and the closed arc plate can fully contact the plastic particles in different areas of the holding tank through the through hole, effectively eliminating the moisture-proof blind spots caused by the fixed carrier, so that the moisture inside the device is evenly absorbed, the moisture-proof effect is more stable, and the practicality of the device is improved. Attached Figure Description

[0026] Figure 1 This is an isometric view of a plastic particle holding device with a moisture-proof structure proposed in this utility model;

[0027] Figure 2 This is an axial sectional view of a plastic particle holding device with a moisture-proof structure proposed in this utility model;

[0028] Figure 3This is a schematic diagram of the mounting base and plug-in tube of a plastic particle holding device with a moisture-proof structure proposed in this utility model.

[0029] Figure 4 A schematic diagram of a slip ring, extension rod, and arc-shaped insertion rod for a plastic particle holding device with a moisture-proof structure proposed in this utility model;

[0030] Figure 5 A schematic diagram of the connecting part, L-shaped pin and placing tube of a plastic particle holding device with a moisture-proof structure proposed in this utility model;

[0031] Figure 6 This is a front view of a plastic particle holding device with a moisture-proof structure proposed in this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Chassis; 2. Support column; 3. Holding tank; 4. Tank lid; 5. Rotating handle; 6. Feed inlet; 7. Bearing; 8. Quick disassembly / assembly mechanism; 81. Mounting base; 82. Threaded bar; 83. Clamping nut; 84. Insert sleeve; 85. Slip ring; 86. Extension rod; 87. Arc-shaped insert rod; 88. Collar; 89. Positioning groove; 810. Connecting part; 811. L-shaped pin; 812. Placement cylinder; 813. Closed arc plate; 814. Placement chamber; 815. Through hole; 816. Fixing bolt; 9. Discharge valve. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figure 1-3 This utility model provides a specific implementation method:

[0036] A plastic particle holding device with a moisture-proof structure includes a base 1, a support column 2, a holding tank 3, a tank cover 4, a rotating handle 5, a feed inlet 6, a bearing 7, and a discharge valve 9. Both ends of the upper surface of the tank cover 4 are fixedly connected to a quick-release mechanism 8. The quick-release mechanism 8 includes a mounting base 81. Threaded rods 82 are fixedly connected to both sides of the lower end of the outer wall of the mounting base 81. One end of each threaded rod 82 is threadedly connected to a clamping nut 83. Both sides of the upper end of the outer wall of the mounting base 81 are fixedly connected to... A sliding ring 85 is rotatably connected to the middle of the outer wall of the plug-in sleeve 84 and the mounting base 81. Extension rods 86 are fixedly connected to both ends of the upper surface of the sliding ring 85. An arc-shaped insert rod 87 is fixedly connected to one side of the upper end of the outer wall of the extension rod 86. A collar 88 is fixedly connected to both ends of the lower surface of the sliding ring 85. A positioning groove 89 is formed in the middle of one end face of the collar 88. A connecting part 810 is engaged with the upper end of the mounting base 81. L-shaped pins 81 are fixedly connected to both sides of the lower end of the outer wall of the connecting part 810. 1. The lower end of the connecting part 810 is fixedly connected to a placement cylinder 812. The middle and lower parts of the outer wall of the placement cylinder 812 are rotatably connected to a closed arc plate 813. Multiple placement chambers 814 are opened on one end face of the placement cylinder 812 and one end face of the closed arc plate 813. Multiple through holes 815 are opened on the middle and lower parts of the outer wall of the placement cylinder 812 and the outer wall of the closed arc plate 813. Multiple fixing bolts 816 are threadedly connected to one side of the outer wall of the placement cylinder 812. The device is equipped with a quick disassembly and assembly mechanism 8 composed of a slip ring 85, an arc-shaped insert rod 87, and an L-shaped pin 811. Rotating the slip ring 85 can realize the engagement or disengagement of the arc-shaped insert rod 87 and the L-shaped pin 811. With the positioning and fixation of the collar 88 and the clamping nut 83, the disassembly and assembly of the placement cylinder 812 can be completed without disassembling multiple fasteners, which greatly simplifies the desiccant replacement process and reduces the time of damage to the sealing state of the device, significantly reducing the risk of external moisture intrusion and improving the practicality of the device.

[0037] Reference Figure 3-6 Multiple support columns 2 are fixedly connected around the upper surface of the chassis 1. A holding tank 3 is fixedly connected to the upper end of the support columns 2. The device can easily drive the can lid 4 to rotate by setting a bearing 7 between the holding tank 3 and the can lid 4, and cooperating with the rotating handle 5 on the can lid 4. The can lid 4 drives the placement cylinder 812 fixed at the lower end to rotate synchronously. The desiccant in the placement chamber 814 of the placement cylinder 812 and the closed arc plate 813 can fully contact the plastic particles in different areas of the holding tank 3 through the through hole 815, effectively eliminating the moisture-proof blind spot caused by the fixed carrier, so that the moisture inside the device is evenly absorbed, the moisture-proof effect is more stable, and the practicality of the device is improved.

[0038] A bearing 7 is fixedly connected to the upper end of the outer wall of the container 3. A container cover 4 is fixedly connected to the outer wall of the bearing 7. A rotating handle 5 is fixedly connected around the upper surface of the container cover 4. A feed inlet 6 is opened in the middle of the upper surface of the container cover 4. A discharge valve 9 is set in the middle of the lower surface of the container 3. The bearing 7 provides stable rotation support for the container cover 4 and reduces the frictional resistance when the container cover 4 rotates. The operator can easily drive the container cover 4 to rotate by rotating the handle 5, which in turn drives the internal placement cylinder 812 to rotate synchronously to optimize the moisture absorption effect. The feed inlet 6 provides a convenient channel for the feeding of plastic particles, and the discharge valve 9 can accurately control the discharge amount of particles, realizing convenient feeding and discharging and flexible operation of the device.

[0039] The width of the opening on one side of the outer wall of the collar 88 is consistent with the diameter of the threaded bar 82, and the diameter of the clamping nut 83 is consistent with the bottom diameter of the positioning groove 89. The precise matching of dimensions allows the collar 88 to be stably fitted onto or detached from the threaded bar 82, avoiding shaking or displacement during fitting. At the same time, the clamping nut 83 can be completely embedded in the positioning groove 89, ensuring that the clamping force of the clamping nut 83 on the collar 88 is evenly distributed, improving the structural stability of the quick-release mechanism 8 after connection.

[0040] One end of the arc-shaped insert 87 passes through one side end face of the insert tube 84 and forms a snap-fit ​​connection with one end of the L-shaped pin 811. The two arc-shaped inserts 87 and the L-shaped pin 811 are engaged in opposite directions. The reverse snap-fit ​​structure design allows the two arc-shaped inserts 87 to limit the L-shaped pin 811 from different directions, effectively preventing the connection part 810 from becoming loose on one side due to vibration or external force, significantly improving the reliability of the engagement between the mounting base 81 and the connection part 810, and preventing the placement tube 812 from falling off.

[0041] After the slip ring 85 rotates to a certain angle, one end of the arc-shaped insert 87 engages with one end of the L-shaped pin 811. The collar 88 is fitted onto the middle of the outer wall of the threaded rod 82. The clamping nut 83 is tightened and abuts against the bottom surface of the positioning groove 89. When the clamping nut 83 is loosened, the collar 88 disengages from the threaded rod 82, and one end of the arc-shaped insert 87 disengages from one end of the L-shaped pin 811. This achieves integrated operation of the quick disassembly and assembly mechanism 8. Only by rotating the slip ring 85 can the engagement of the arc-shaped insert 87 and the positioning of the collar 88 be completed simultaneously. With the tightening of the clamping nut 83, the installation of the placement cylinder 812 is completed. After loosening the nut, rotating the slip ring 85 in the opposite direction can release the fixation. This simplifies the disassembly and assembly process when replacing the desiccant and improves maintenance efficiency.

[0042] One end of the fixing bolt 816 passes through one side of the outer wall of the placement cylinder 812 and forms a threaded connection with one side of the outer wall of the closed arc plate 813. The through hole 815 communicates with the placement chamber 814. The fixing bolt 816 can firmly lock the placement cylinder 812 and the closed arc plate 813 to prevent them from separating during the operation of the device and ensure that the desiccant in the placement chamber 814 will not fall out. The design of the through hole 815 communicating with the placement chamber 814 allows the desiccant to fully contact the air in the holding tank 3, maximizing the moisture absorption area and improving the moisture-proof effect. At the same time, the closed arc plate 813 can be opened by unscrewing the fixing bolt 816 to replace the desiccant.

[0043] The upper end of the placement cylinder 812 passes through the middle of the upper surface of the mounting base 81 and forms a fixed connection with the middle of the lower surface of the connecting part 810. A sealing ring is fixedly connected to the lower end of the outer wall of the connecting part 810. The fixed connection between the placement cylinder 812 and the connecting part 810 ensures that the two are subjected to force synchronously, avoiding relative displacement that could cause structural loosening. The sealing ring at the lower end of the connecting part 810 can fill the gap between the connecting part 810 and the mounting base 81, preventing external moisture from entering the interior of the container 3 from the connection position, further enhancing the overall sealing and moisture-proof performance of the device.

[0044] Working principle: The operator first puts plastic particles into the holding tank 3 through the feed port 6 in the middle of the can lid 4, and then seals the feed port 6 after the particles are put in. Then the placement chamber 814 containing the desiccant is closed: the placement cylinder 812 and the closing arc plate 813 are locked by the fixing bolt 816, so that the desiccant comes into contact with the air in the holding tank 3 through the through hole 815. At the same time, the sealing ring at the lower end of the connecting part 810 is used to prevent moisture from entering from the gap between the mounting base 81 and the connecting part 810. In order to improve the uniformity of moisture protection, the operator can hold the rotating handle 5 on the can lid 4 and drive the can lid 4 to rotate smoothly with the help of the bearing 7 between the holding tank 3 and the can lid 4. The can lid 4 drives the placement cylinder 812 fixed at the lower end to rotate synchronously, so that the desiccant acts on the plastic particles in different areas. When the desiccant needs to be replaced, first loosen the clamping nut 83 to disengage the collar 88 from the threaded bar 82. Then, rotate the slip ring 85 in the opposite direction to disengage the arc-shaped insert 87 from the L-shaped pin 811, allowing the connecting part 810 and the placement cylinder 812 to be removed. After replacement, reverse the operation of the slip ring 85 to re-engage the arc-shaped insert 87 with the L-shaped pin 811, and then tighten the clamping nut 83 to secure the collar 88 onto the threaded bar 82. When particles need to be taken out, open the discharge valve 9 at the lower end of the holding tank 3 to precisely control the particle discharge rate.

[0045] The following points should be noted in this article:

[0046] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0047] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic particle holding device with a moisture-proof structure, comprising a chassis (1), a support column (2), a holding tank (3), a tank lid (4), a rotating handle (5), a feed inlet (6), a bearing (7), and a discharge valve (9), characterized in that: The upper end face of the can lid (4) is fixedly connected to both ends of a quick-release mechanism (8). The quick-release mechanism (8) includes a mounting base (81). Threaded rods (82) are fixedly connected to both sides of the lower end of the outer wall of the mounting base (81). A clamping nut (83) is threaded to one end of each threaded rod (82). Insert sleeves (84) are fixedly connected to both sides of the upper end of the outer wall of the mounting base (81). A slip ring (85) is rotatably connected to the middle of the outer wall of the mounting base (81). Extension rods (86) are fixedly connected to both ends of the upper end face of the slip ring (85). An arc-shaped insert rod (87) is fixedly connected to one side of the upper end of the outer wall of the extension rod (86). A collar (88) is fixedly connected to both ends of the lower end face of the slip ring (85). One side of the collar (88) has... A positioning groove (89) is provided in the middle of the surface. A connecting part (810) is engaged with the upper end of the mounting base (81). L-shaped pins (811) are fixedly connected to both sides of the lower end of the outer wall of the connecting part (810). A placement cylinder (812) is fixedly connected to the lower end of the connecting part (810). A closed arc plate (813) is rotatably connected to the middle and lower parts of the outer wall of the placement cylinder (812). Multiple placement compartments (814) are provided on one side end face of the placement cylinder (812) and one side end face of the closed arc plate (813). Multiple through holes (815) are provided on the middle and lower parts of the outer wall of the placement cylinder (812) and the outer wall of the closed arc plate (813). Multiple fixing bolts (816) are threadedly connected to one side of the outer wall of the placement cylinder (812).

2. The plastic particle holding device with a moisture-proof structure according to claim 1, characterized in that: Multiple support columns (2) are fixedly connected around the upper surface of the chassis (1), and a container (3) is fixedly connected to the upper end of the support columns (2).

3. The plastic particle holding device with a moisture-proof structure according to claim 1, characterized in that: A bearing (7) is fixedly connected to the upper end of the outer wall of the container (3), a lid (4) is fixedly connected to the outer wall of the bearing (7), a rotating handle (5) is fixedly connected around the upper surface of the lid (4), a feed inlet (6) is opened in the middle of the upper surface of the lid (4), and a discharge valve (9) is provided in the middle of the lower surface of the container (3).

4. The plastic particle holding device with a moisture-proof structure according to claim 1, characterized in that: The width of the opening on one side of the outer wall of the collar (88) is consistent with the diameter of the threaded bar (82), and the diameter of the clamping nut (83) is consistent with the bottom diameter of the positioning groove (89).

5. A plastic particle holding device with a moisture-proof structure according to claim 1, characterized in that: One end of the arc-shaped plug (87) passes through one side end face of the plug tube (84) and forms a snap-fit ​​connection with one end of the L-shaped pin (811). The two arc-shaped plugs (87) and the L-shaped pin (811) are engaged in opposite directions.

6. A plastic particle holding device with a moisture-proof structure according to claim 1, characterized in that: After the slip ring (85) rotates to a certain angle, one end of the arc-shaped insert (87) and one end of the L-shaped pin (811) form a snap-fit ​​connection. The collar (88) is sleeved on the middle of the outer wall of the threaded rod (82). The clamping nut (83) is tightened and abuts against the bottom surface of the positioning groove (89). When the clamping nut (83) is loosened, the collar (88) disengages from the threaded rod (82), and one end of the arc-shaped insert (87) disengages from one end of the L-shaped pin (811).

7. A plastic particle holding device with a moisture-proof structure according to claim 1, characterized in that: One end of the fixing bolt (816) passes through one side of the outer wall of the placement cylinder (812) and forms a threaded connection with one side of the outer wall of the closed arc plate (813). The through hole (815) communicates with the placement chamber (814).

8. A plastic particle holding device with a moisture-proof structure according to claim 1, characterized in that: The upper end of the placement tube (812) passes through the middle of the upper end face of the mounting base (81) and forms a fixed connection with the middle of the lower end face of the connecting part (810). A sealing ring is fixedly connected to the lower end of the outer wall of the connecting part (810).

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