Assembled plastic wire coil

Abstract

The utility model discloses an assembly type plastic wire coil which comprises a central cylinder and side plates located at the two ends of the central cylinder, a circular groove is formed in the center of each side plate, at least two first limiting blocks are arranged on the inner wall of each groove at intervals in a surrounding mode, and the first limiting blocks and the bottoms of the grooves are arranged at intervals; second limiting blocks corresponding to the first limiting blocks are arranged on the arc outer walls of the two ends of the center cylinder at intervals in a surrounding mode. During assembly, the second limiting blocks are inserted into the grooves from the positions between the adjacent first limiting blocks, then the center cylinder is rotated to enable the second limiting blocks to move to the positions below the first limiting blocks, in this way, mutual limiting is formed between the first limiting blocks and the second limiting blocks, and the center cylinder cannot be pulled out of the side plates; then the clamping blocks on the clamping rings are embedded between the adjacent first limiting blocks, so that the clamping blocks limit the side edges of the second limiting blocks, and the center cylinder is prevented from rotating; the assembly is simple and convenient, and no bolt is needed for fixation.

Description

Technical Field

[0001] This utility model relates to the field of spool technology, and more specifically, to an assembled plastic spool. Background Technology

[0002] Plastic wire reels are essential tools widely used in the wire, cable, rope, and hose industries, primarily for storing, transporting, and using various types of wires. The advantages of plastic wire reels include light weight, corrosion resistance, cost-effectiveness, and ease of handling.

[0003] Most existing wire reels are one-piece injection-molded structures, meaning that if any component fails, it cannot be replaced with a replacement part. Existing technologies also include detachable wire reels, which are mainly fixed with bolts, making disassembly and assembly cumbersome. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide an assembled plastic reel.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An assembled plastic reel includes a central cylinder and side plates located at both ends of the central cylinder. A circular groove is formed in the center of the side plate. At least two first limiting blocks are arranged at intervals around the inner wall of the groove, and the first limiting blocks are spaced apart from the bottom of the groove. Second limiting blocks corresponding to the first limiting blocks are arranged at intervals around the arcuate outer walls at both ends of the central cylinder. The second limiting blocks enter the groove from between adjacent first limiting blocks and rotate to below the second limiting blocks. The reel also includes two retaining rings set on the central cylinder, and the retaining rings are provided with retaining blocks that can be embedded between adjacent first limiting blocks.

[0007] Preferably, the arc length of the first limiting block is equal to the arc length of the interval between adjacent first limiting blocks.

[0008] Preferably, the arc length of the second limiting block is the same as the arc length of the first limiting block.

[0009] Preferably, the arc length of the card block is equal to the arc length of the interval between adjacent first limiting blocks.

[0010] Preferably, a space is reserved between the first limiting block and the top of the groove to form an annular groove, the retaining ring is located in the annular groove, and the first limiting block does not extend beyond the annular groove.

[0011] Preferably, the side of the second limiting block opposite to the card block is chamfered or rounded.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] During assembly, the second limiting block is inserted into the groove between the adjacent first limiting blocks. Then, the center cylinder is rotated to move the second limiting block below the first limiting block. This creates a mutual limiting relationship between the first and second limiting blocks, preventing the center cylinder from being pulled out of the side plate. Next, the locking block on the retaining ring is inserted between the adjacent first limiting blocks. This locks the side of the second limiting block, preventing the center cylinder from rotating. Assembly is simple and convenient, requiring no bolts for fixation. Furthermore, damaged parts can be repaired by replacing them with new ones, extending the service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the assembly structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the assembled version of this utility model;

[0017] Figure 4 This is a partial sectional view of the present invention after disassembly.

[0018] Explanation of the labels in the diagram:

[0019] 1. Center cylinder; 2. Side plate; 3. Groove; 4. First limiting block; 5. Second limiting block; 6. Snap ring; 7. Snap block; 8. Ring groove. Detailed Implementation

[0020] 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.

[0021] refer to Figure 1 -,3, An assembled plastic reel includes a central cylinder 1 and side plates 2 located at both ends of the central cylinder 1. A circular groove 3 is provided in the center of the side plate 2. At least two first limiting blocks 4 are arranged around the inner wall of the groove 3 at intervals, and the first limiting blocks 4 are spaced apart from the bottom of the groove 3. Second limiting blocks 5 corresponding to the first limiting blocks 4 are arranged around the arc-shaped outer walls at both ends of the central cylinder 1 at intervals. The second limiting blocks 5 enter the groove 3 from between adjacent first limiting blocks 4 and rotate to below the second limiting blocks 5. It also includes two retaining rings 6 set on the central cylinder 1. The retaining rings 6 are provided with retaining blocks 7 that can be embedded between adjacent first limiting blocks 4.

[0022] It is understandable that there are at least two first limiting blocks 4, such as two, three, or four. The second limiting blocks 5 correspond to the first limiting blocks 4, meaning their number is the same. Two gaps are formed between the two first limiting blocks 4, meaning the same number of first limiting blocks 4 create the same number of gaps. Therefore, the number of locking blocks 7 is also the same as the number of first limiting blocks 4. The retaining ring 6 positions all the locking blocks 7, facilitating their insertion into the groove 3. The retaining ring 6 can be a closed-loop structure fitted onto the central cylinder 1, or it can be a discontinuous structure or a structure assembled from multiple arc-shaped plates. The retaining ring 6 and the locking blocks 7 can be integrally formed or bonded together, but are not limited to these methods. The distance between the first limiting block 4 and the bottom of the groove 3 is adapted to the thickness of the second limiting block 5. For example, using the distance between the bottom of the groove 3 and the second limiting block 5 as a hole and the second limiting block 5 as an axis, an overfit or interference fit is used to ensure a tight fit.

[0023] With this configuration, during assembly, the second limiting block 5 is inserted into the groove 3 between the adjacent first limiting blocks 4. Then, the central cylinder 1 is rotated to move the second limiting block 5 below the first limiting block 4. This creates a mutual limiting relationship between the first and second limiting blocks 4, preventing the central cylinder 1 from being pulled out of the side plate 2. Next, the locking block 7 on the retaining ring 6 is inserted between the adjacent first limiting blocks 4. In this way, the locking block 7 limits the side of the second limiting block 5, preventing the central cylinder 1 from rotating. This bidirectional limiting ensures the robustness and stability of the assembled structure, and the assembly process is relatively simple and convenient.

[0024] In some embodiments, the arc length of the first limiting block 4 is equal to the arc length of the interval between adjacent first limiting blocks 4. Further, the arc length of the second limiting block 5 is equal to the arc length of the first limiting block 4. Further, the arc length of the locking block 7 is equal to the arc length of the interval between adjacent first limiting blocks 4. Thus, the first limiting block 4, the second limiting block 5, and the locking block 7 all have equal arc lengths, allowing the three components to fit together tightly and ensuring structural stability.

[0025] In some embodiments, reference Figure 3-4 A space is reserved between the first limiting block 4 and the top of the groove 3 to form an annular groove 8. The retaining ring 6 is located in the annular groove 8, and the first limiting block 4 does not extend beyond the annular groove 8. Here, the thickness of the annular groove 8 needs to be greater than or equal to the thickness of the retaining ring 6, preferably equal to it, so that after the retaining ring 6 is embedded in the annular groove 8, the outer wall of the retaining ring 6 is flush with the outer wall of the side plate 2.

[0026] In some embodiments, reference Figure 2The sides of the second limiting block 5 opposite to the locking block 7 are chamfered or rounded. Understandably, when the locking block 7 is inserted between the adjacent first limiting blocks 4, the side of the locking block 7 is in contact with the side of the second limiting block 5. If the rotation position of the central cylinder 1 is not precise, causing the second limiting block 5 not to completely overlap with the first limiting block 4, the second limiting block 5 will block the locking block 7 during insertion, increasing the difficulty of insertion. The chamfered or rounded corners can serve to avoid this, improving the ease of assembly.

[0027] 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. An assembled plastic reel, comprising a central cylinder (1) and side plates (2) located at both ends of the central cylinder (1), characterized in that: The side plate (2) has a circular groove (3) in the center. At least two first limiting blocks (4) are arranged around the inner wall of the groove (3) at intervals, and the first limiting blocks (4) are spaced apart from the bottom of the groove (3). The outer arc walls at both ends of the central cylinder (1) are arranged around the groove (3) with second limiting blocks (5) corresponding to the first limiting blocks (4) at intervals. The second limiting blocks (5) enter the groove (3) from between the adjacent first limiting blocks (4) and rotate to the bottom of the second limiting blocks (5). It also includes two retaining rings (6) set on the central cylinder (1). The retaining rings (6) are provided with retaining blocks (7) that can be embedded between the adjacent first limiting blocks (4).

2. The assembled plastic reel according to claim 1, characterized in that, The arc length of the first limiting block (4) is equal to the arc length of the interval between adjacent first limiting blocks (4).

3. The assembled plastic reel according to claim 2, characterized in that, The arc length of the second limiting block (5) is the same as the arc length of the first limiting block (4).

4. An assembled plastic reel according to claim 2 or 3, characterized in that, The arc length of the card block (7) is equal to the arc length of the interval between the adjacent first limiting blocks (4).

5. The assembled plastic reel according to claim 1, characterized in that, A space is reserved between the first limiting block (4) and the top of the groove (3) to form an annular groove (8), the retaining ring (6) is located in the annular groove (8), and the first limiting block (4) does not exceed the annular groove (8).

6. The assembled plastic reel according to claim 1, characterized in that, The sides of the second limiting block (5) and the card block (7) opposite each other are chamfered or rounded.

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