Plastic wire coil convenient to stack
By setting limit heads and limit components on the side plates of plastic wire reels, the stability problem during wire reel stacking is solved, achieving stable connection in both vertical and horizontal directions and improving the overall stability of the stack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-04-03
AI Technical Summary
Existing coils are prone to displacement and collapse when stacked, lacking mutual restraint or interlocking structures, resulting in poor stability.
A limiting head and a limiting component are installed on the side plate of the plastic reel. The limiting head can be extended and inserted into the through hole of the adjacent reel, and the limiting component can be movably inserted into the adjacent groove. Through the cooperation of spring and elastic rubber, a stable connection of the reels is achieved.
It improves the stacking stability of the coils in both vertical and horizontal directions, prevents displacement and collapse, and enhances the overall stability of the stack.
Smart Images

Figure CN224076844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire reel technology, and more specifically, to a plastic wire reel that is easy to stack. Background Technology
[0002] A wire reel is a tool used for storing, transporting, and using long, thin materials such as wires, cables, and ropes. It is widely used in various fields including power engineering, telecommunications, construction sites, and manufacturing. Plastic wire reels offer advantages such as light weight, corrosion resistance, cost-effectiveness, and ease of handling.
[0003] The reel mainly consists of a central cylinder and side plates at both ends. After production or subsequent winding, the reels usually need to be stacked. In existing technology, the reels are stacked with the side plates close together in the horizontal direction and correspondingly stacked on top of each other in the vertical direction. This lack of mutual restraint or interlocking structure between the reels, whether horizontally or vertically, makes them prone to displacement and collapse during stacking. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a plastic reel that is easy to stack.
[0005] To solve the above problems, the present invention adopts the following technical solution. A plastic reel that is easy to stack includes a central cylinder and side plates disposed at both ends of the central cylinder. The two side plates are respectively provided with a first through hole and a second through hole at their centers. A limiting head that fits into the second through hole is retractably disposed in the first through hole. Four grooves are evenly spaced on the outer edge of the inner side of the side plate near the first through hole. A limiting member is movably disposed in two adjacent grooves or two opposite grooves. The limiting member can extend out of the groove and engage in the groove of another reel that does not have a limiting member.
[0006] Preferably, a fixing seat is provided in the first through hole, and a spring is connected between the limiting head and the fixing seat, and the limiting head extends beyond the first through hole when the spring is in a free state.
[0007] Preferably, the edge of the outer end of the limiting head is chamfered or rounded.
[0008] Preferably, the limiting member is oscillatingly positioned at the end of the groove away from the central cylinder via a rotating shaft.
[0009] Preferably, the end of the limiting member away from the rotating shaft is provided with a positioning hole, and a positioning shaft that fits into the positioning hole is provided in the groove where no limiting member is provided.
[0010] Preferably, the limiting member is slidably disposed within the groove.
[0011] Preferably, an elastic adhesive is provided on the inner wall of the end of the groove near the central cylinder, and the end of the limiting member abuts against the elastic adhesive when it swings back into the groove.
[0012] Compared with the prior art, the advantages of this utility model are as follows:
[0013] When stacked vertically, the limiting head can be inserted into the second through hole for positioning, so that the upper and lower coils will not shift in the horizontal direction, improving the stability of the stack. The retractable setting of the limiting head can be retracted into the first through hole, so that it will not affect the side plate placed on the ground. When placed horizontally, the limiting part can be extended and inserted into the groove of another coil, so that the adjacent coils placed horizontally are connected, further improving the stability of the coil stack. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the coil;
[0015] Figure 2 This is a schematic diagram of the coil structure from another angle.
[0016] Figure 3 A sectional view of the vertically stacked wire reels;
[0017] Figure 4 A front sectional view of the coils placed horizontally;
[0018] Figure 5 A top view of the coils placed horizontally;
[0019] Figure 6 This is a partial sectional view of the wire reel.
[0020] Explanation of the labels in the diagram:
[0021] 1. Center tube; 2. Side plate; 21. First through hole; 22. Second through hole; 3. Limiting head; 31. Fixing seat; 32. Spring; 4a / 4b. Groove; 5. Limiting component; 51. Rotating shaft; 52. Positioning hole; 53. Positioning shaft; 6. Elastic rubber. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] refer to Figure 1-3A stackable plastic reel includes a central cylinder 1 and side plates 2 disposed at both ends of the central cylinder 1. The two side plates 2 have a first through hole 21 and a second through hole 22 respectively at their centers. A limiting head 3, which is retractably disposed within the first through hole 21 and engages with the second through hole 22, is also provided. (Reference) Figure 1 and Figure 4-5 Four grooves are evenly spaced on the outer edge of the side plate 2 near the first through hole 21. A limiting member 5 is movably arranged in two adjacent grooves or two opposite grooves. The limiting member 5 can extend out of the groove 4a and be inserted into the groove 4b of another coil that does not have a limiting member 5.
[0024] Understandably, the retractable design of the limiting head 3 and the first through hole 21 can be a shaft-hole mating structure, or it can be a self-retracting structure of the limiting head 3, etc. The limiting member 5 is a component that fits and limits the groove 4b, and can be, for example, a block structure, a rod structure, etc., but is not limited to these. The movable design of the limiting member 5 can be a movable connection structure that allows the limiting member 5 to extend from the groove 4a, for example, a rotary swing connection structure or a sliding connection structure, etc., but is not limited to these.
[0025] With this configuration, when stacked vertically, the limiting head 3 can be embedded into the second through hole 22 for positioning, so that the upper and lower coils will not shift in the horizontal direction, improving the stability of the stack. The retractable design of the limiting head 3 allows it to be retracted into the first through hole 21, so that it will not affect the side plate 2 when placed on the ground. When placed horizontally, the limiting member 5 can extend out and be embedded into the groove 4b of another coil, so that the adjacent coils placed horizontally are connected, further improving the stability of the coil stack.
[0026] In some embodiments, reference Figure 3 A fixing seat 31 is provided inside the first through hole 21. A spring 32 connects the limiting head 3 to the fixing seat 31, and when the spring 32 is in a free state, the limiting head 3 extends beyond the first through hole 21. It is understood that the fixing seat 31 is a component that fixes the spring 32, and can be, for example, a disc structure or a ring structure. Thus, through the cooperation of the spring 32, the limiting head 3 can be ensured to automatically extend and embed into the second through hole 22. When the limiting head 3 is facing downwards, the weight of the coil can also compress the limiting head 3 into the first through hole 21.
[0027] Further reference Figure 2-3 The edge of the limiting head 3 facing outward is chamfered or rounded. Here, the outward end is the end into which it is embedded in the second through hole 22. When the limiting head 3 is aligned with the second through hole 22, the rounded or chamfered edge can serve as a guide, making it easier to embed the limiting head 3 into the second through hole 22.
[0028] In some embodiments, reference Figure 4The limiting member 5 is oscillatingly positioned at the end of the groove 4a away from the central cylinder 1 via a rotating shaft 51. Thus, the limiting member 5 can oscillate around the rotating shaft 51, thereby allowing it to enter and exit the groove 4a.
[0029] Furthermore, the end of the limiting member 5 furthest from the rotating shaft 51 has a positioning hole 52, and a positioning shaft 53 that fits into the positioning hole 52 is provided in the groove 4b where the limiting member 5 is not located. In this way, the two coils can be connected and locked by the cooperation of the positioning hole 52 and the positioning shaft 53, thereby improving the stability of the connection between adjacent coils in the horizontal direction.
[0030] Further reference Figure 1 and Figure 6 An elastic adhesive 6 is provided on the inner wall of the end of the groove 4a near the central cylinder 1. When the limiting member 5 swings back into the groove 4a, its end rests against the elastic adhesive 6. Here, the elastic adhesive 6 serves a fastening function; for example, it can be made of rubber or silicone, but is not limited to these. In this way, the limiting member 5 resting against the elastic adhesive 6 can fasten the limiting member 5, preventing it from easily swinging out of the groove 4a.
[0031] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A plastic spool for facilitating stacking, comprising a center tube and side plates disposed at both ends of the center tube, characterized in that, Two said side plate center are respectively provided with first through hole and second through hole, the first through hole is provided with the limiting head which is embedded with the second through hole; the outer ring edge of the side plate near the first through hole is uniformly and spacedly provided with four grooves, the adjacent two grooves or the opposite two grooves are movably provided with the limiting member, the limiting member can be extended and clamped into the groove without the limiting member of another wire disc.
2. A plastic spool facilitating stacking according to claim 1, wherein, The first through hole is provided with a fixing seat, a spring is connected between the limiting head and the fixing seat, and the limiting head exceeds the first through hole in the free state.
3. A plastic spool facilitating stacking according to claim 2, wherein, The edge of the outer end of the limiting head is provided with a chamfer or a round corner.
4. A plastic spool facilitating stacking as claimed in claim 1, wherein, The limiting member is swingably provided in the groove away from the center tube through a rotating shaft.
5. A plastic spool facilitating stacking according to claim 4, wherein, The end of the limiting member away from the rotating shaft is provided with a positioning hole, and the groove without the limiting member is provided with a positioning shaft embedded with the positioning hole.
6. A plastic spool facilitating stacking according to claim 4, wherein, The inner wall of the end of the groove near the center tube is provided with elastic glue, and the end of the limiting member is abutted on the elastic glue when it swings back to the groove.
7. A plastic spool facilitating stacking as claimed in claim 1 wherein, The limiting member is slidably arranged in the groove.