Combined environment-friendly cable winding disc formed by compression molding of wood fibers

Abstract

The utility model discloses a combined type wood fiber compression molding environment-friendly cable winding disc which comprises a first disc body assembly and a second disc body assembly which are arranged in parallel in a spaced mode, and the first disc body assembly and the second disc body assembly are detachably connected to form the winding disc. A space between the first disc body assembly and the second disc body assembly is a winding space; the first disc body assembly and the second disc body assembly are in butt joint through the limiting assembly. The first disc body assembly and the second disc body assembly are mutually connected and fixed through the connecting assembly; the first tray body assembly, the second tray body assembly and the limiting assembly are made of mixed materials of wood fibers and adhesives in a compression molding mode. According to the utility model, the environmental protection problem is solved by using environment-friendly materials, the production cost is effectively reduced, the assembly detachable connection mode is adopted, the batch production is convenient, the occupied transportation space is reduced, the transportation cost is reduced, the connection limiting and guiding functions are realized, and the assembly accuracy and the assembly efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of cable winding drums, in particular to a combined wood fiber molded environmentally friendly cable winding drum. Background Art

[0002] Cables are a basic raw material in the fields of electricity, communications, etc. During the production process, the manufactured cables need to be wound on a winding drum and stored and transported by winding. The cable winding drum is a common tool for winding cables. The winding drum is generally made of plastic. In the existing winding drum manufacturing process, injection molding is generally adopted. The winding drum includes an upper drum body and a lower drum body which are spaced apart from each other. A support tube with a cylindrical structure is connected between the upper and lower drum bodies. The upper and lower drum bodies and the external space of the support tube form a winding space for winding cables. The middle part of the support tube is connected from top to bottom.

[0003] In the existing winding reel manufacturing process, the existing technology uses plastic materials. The winding reel made of plastic materials has poor environmental protection. After the winding reel is damaged or reaches the end of its service life, it takes a long time for the material to degrade naturally, causing environmental pollution problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an environmentally friendly cable winding disk made of a mixed material of wood fiber and adhesive through molding in view of the deficiencies of the above-mentioned prior art, which can solve the environmental protection problem and realize single-shot one-piece molding, effectively reduce the production cost, and adopt a detachable component connection method to facilitate mass production, reduce transportation space occupancy, reduce transportation costs, and have a connection limit guide function to improve assembly accuracy and assembly efficiency.

[0005] The technical solution adopted by the utility model is as follows: a combined wood fiber molded environmentally friendly cable winding disk, comprising a first disk body component and a second disk body component arranged in parallel and spaced apart, the first disk body component and the second disk body component are detachably connected to form a winding disk; the space between the first disk body component and the second disk body component is a winding space for winding cables; the first disk body component and the second disk body component are connected to each other through a limiting component, and the limiting component is arranged on the first disk body component and / or the second disk body component, and is used for guiding and limiting when the first disk body component and the second disk body component are connected to each other; the first disk body component and the second disk body component are connected and fixed to each other through a connecting component; the first disk body component, the second disk body component and the limiting component are made by molding; the raw material made by molding is a mixed material of wood fiber and adhesive, and the mixed material is a solid powder structure.

[0006] Preferably, the first disc assembly includes a first disc, which is a circular disc-shaped structure; a circular support ring is provided in the middle of the surface of the first disc, a through hole penetrating the first disc is opened in the middle of the circular support ring, and at least two support strips extending outward in the radial direction are provided at intervals on the side of the circular support ring; the second disc assembly includes a second disc and a support tube; the second disc is a circular disc-shaped structure; the support tube is a cylindrical structure, and is located at the bottom of the second disc, and is integrally molded with the second disc; the bottom of the support tube is detachably connected to the first disc, and the first disc, the second disc and the support tube are connected to the first disc. A winding space is formed between the two disks and the support tube; a partition arranged in a radial direction is provided inside the support tube, and the partition is sunken downward from the surface of the second disk to form a wire storage space between the partition and the inner wall of the support tube; a wire inlet groove is provided on the second disk, and the wire inlet groove connects the winding space and the wire storage space so that the wire ends in the winding space can enter the wire storage space; an inner support ring arranged coaxially with the support tube is provided in the middle of the partition of the second disk, and at least two concave-convex strips are provided on the side of the inner support ring, which extend in a radial direction on the partition, are sunken downward on the surface of the partition, and are convex downward on the bottom surface of the partition.

[0007] Preferably, the limiting assembly includes an embedded ring; the embedded ring is a circular ring structure and is arranged on the surface of the first disk body and is arranged concentrically with the first disk body; the outer diameter of the embedded ring is not less than the inner diameter of the support tube, the bottom of the support tube is nested on the embedded ring, and is guided and limited by the embedded ring; the outer end of the support strip is connected to the inner wall of the embedded ring to enhance the bearing capacity of the embedded ring; at least two bosses are provided on the first disk body, and mounting holes are provided on the bosses; mounting holes are provided on the convex and concave strips corresponding to the bosses in the axial direction; the connecting assembly includes bolts; the bolts include at least two, and at least two bolts pass through the mounting holes on the bosses and the convex and concave strips in the axial direction to connect and fix the first disk body and the partition.

[0008] Preferably, the first disc assembly includes a first disc and a first connecting tube, the first disc is a circular disc-shaped structure; the top surface of the first disc is provided with a first connecting tube, the first connecting tube is a circular cylindrical structure, and extends upward in the axial direction; a partition is provided in the first connecting tube, and the partition is located on the top of the first connecting tube; an inner support ring is provided in the middle of the partition, and at least two concave and convex strips extending outward in the radial direction are provided at intervals on the side of the inner support ring; the second disc assembly includes a second disc and a first connecting tube, the second disc is a circular disc-shaped structure; the bottom surface of the second disc is provided with a first connecting tube, the first connecting tube is a circular cylindrical structure, and extends downward in the axial direction; the first A partition is provided in the connecting tube, and the partition is located at the bottom of the first connecting tube; an inner support ring is provided in the middle of the partition, and at least two concave-convex strips extending outward in the radial direction are provided at intervals on the side of the inner support ring; the first connecting tubes of the first disk body and the second disk body are connected to each other to form a support tube structure, and the space between the first disk body, the second disk body and the support tube structure forms a winding space; wire storage spaces are formed in the first connecting tubes on the first disk body and the second disk body respectively; a wire inlet groove is provided between the wire storage space and the winding space, and the wire inlet groove passes through the wire storage space and the winding space so that the wire head in the winding space can enter the wire storage space; the concave-convex strips are recessed inwardly along the wire storage space corresponding to the partition where they are located.

[0009] Preferably, the limit assembly includes an arc-shaped limit strip; the arc-shaped limit strip is arranged on the first connecting tube and is located on the end wall of the first connecting tube away from the wire storage space; the arc-shaped limit strips on the first connecting tube include at least two, and at least two arc-shaped limit strips are arranged at intervals in the circumferential direction; the arc-shaped limit strip on the first connecting tube of the first disk body is inserted into the first connecting tube of the second disk body; the arc-shaped limit strip on the first connecting tube of the second disk body is inserted into the first connecting tube of the first disk body, so as to guide the limit during connection; the concave and convex strips are provided with mounting holes; the connecting assembly includes bolts; the bolts include at least two, and at least two bolts are inserted into the mounting holes of the concave and convex strips on the first disk body and the second disk body along the axial direction, so as to connect and fix the first disk body and the second disk body.

[0010] Preferably, the first disk body assembly includes a first disk body and a first connecting tube, the first disk body is a circular disk-shaped structure; a first connecting tube is provided on the top surface of the first disk body, the first connecting tube is a circular cylindrical structure, and extends upward in the axial direction; a partition is provided in the first connecting tube; an inner support ring is provided in the middle of the partition, and at least two branches extending outward in the radial direction are provided at intervals on the side of the inner support ring; the second disk body assembly includes a second disk body and a first connecting tube, the second disk body is a circular disk-shaped structure; a first connecting tube is provided on the bottom surface of the second disk body, the first connecting tube is a circular cylindrical structure, and extends downward in the axial direction; a partition is provided in the first connecting tube; an inner support ring is provided in the middle of the partition, and at least two branches extending outward in the radial direction are provided at intervals on the side of the inner support ring.

[0011] Preferably, at least two bosses are provided on the partition, and mounting holes are provided on the bosses; the connecting assembly includes a second connecting tube, a partition plate and a bolt, wherein the partition plate is a circular disk-shaped structure; the second connecting tube is a cylindrical structure, the second connecting tube is located at the bottom of the partition plate and is concentric with the partition plate; the second connecting tube and the partition plate are respectively connected to the first disk body and the first connecting tube on the second disk body; the space between the first disk body, the second disk body, the first connecting tube and the second connecting tube forms a winding space; the winding space is independently divided into two sub-winding spaces along the axial direction by the partition plate; a wire feed groove is provided on the partition plate, and the two sub-winding spaces are connected through the groove to facilitate the passage of the cable; the bolts include at least two, and at least two bolts are inserted into the first disk body and the second disk body along the axial direction The guide ring is arranged on the bottom end wall of the second connecting tube and is recessed inwardly. The outer diameter of the guide ring is not larger than the inner diameter of the guide groove of the first connecting tube on the first disk body, and is embedded in the guide groove so as to guide and limit the second connecting tube during installation. The embedded ring is arranged on the surface of the partition disk and is concentric with the partition disk. The outer diameter of the embedded ring is not larger than the inner diameter of the guide groove of the first connecting tube on the second disk body, and is embedded in the guide groove so as to guide and limit the second connecting tube during installation.

[0012] Preferably, the first disk assembly includes a first disk, which is a circular disk-shaped structure; an inner support ring is provided in the middle of the surface of the first disk, and at least two convex strips extending outward in the radial direction are provided at intervals on the side of the inner support ring; the second disk assembly includes a second disk and a support tube; the second disk is a circular disk-shaped structure; an inner support ring is provided in the middle of the second disk coaxially with the support tube, and at least two convex strips extending outward in the radial direction are provided at intervals on the side of the inner support ring; the support tube is a cylindrical structure, and is located at the bottom of the second disk, and is integrally molded with the second disk; the bottom of the support tube is detachably connected to the first disk, and a winding space is formed between the first disk, the second disk and the support tube; at least two convex strips are provided at intervals on the disk surfaces of the first disk and the second disk.

[0013] Preferably, the limiting assembly includes an embedded ring and a guide groove, wherein the embedded ring is a circular ring structure, the embedded ring is arranged on the top surface of the first disk body and is coaxial with the first disk body; the guide groove is a circular groove structure, the guide groove is opened on the inner side wall of the support tube, the inner diameter of the guide groove is not less than the outer diameter of the embedded ring, the embedded ring is embedded in the guide groove, and guides and limits the first disk body and the support tube; at least two bosses are respectively provided on the first disk body and the second disk body, and mounting holes are opened on the bosses; the connecting assembly includes bolts; the bolts include at least two, and at least two bolts are inserted into the mounting holes on the first disk body and the second disk body along the axial direction to connect and fix the first disk body and the second disk body.

[0014] Preferably, the first disk body assembly includes a first disk body and a first connecting tube, the first disk body is a circular disk-shaped structure; a first connecting tube is provided on the top surface of the first disk body, the first connecting tube is a circular cylindrical structure, and extends upward in the axial direction; an inner support ring is provided in the middle of the top surface of the first disk body, and at least two branches extending outward in the radial direction are provided at intervals on the side of the inner support ring; the second disk body assembly includes a second disk body and a first connecting tube, the second disk body is a circular disk-shaped structure; a first connecting tube is provided on the bottom surface of the second disk body, the first connecting tube is a circular cylindrical structure, and extends downward in the axial direction; an inner support ring is provided in the middle of the bottom surface of the second disk body, and at least two branches extending outward in the radial direction are provided at intervals on the side of the inner support ring.

[0015] Preferably, the limiting assembly includes an insert block, and the insert block includes at least two blocks, and the at least two insert blocks are arranged on the end wall of the first connecting tube on the first disk body and the second disk body at intervals in the circumferential direction, and extend axially outward along the inner side wall of the first connecting tube; when the first connecting tubes on the first disk body and the second disk body are connected to each other, the insert block on one first connecting tube is inserted into the other connecting tube to guide and limit the two connecting tubes; at least two bosses are respectively provided on the first disk body and the second disk body, and mounting holes are opened on the bosses; the connecting assembly includes bolts; the bolts include at least two, and at least two bolts are inserted in the mounting holes of the first disk body and the second disk body along the axial direction to connect and fix the first disk body and the second disk body.

[0016] Preferably, the first disk body assembly includes a first disk body, which is a circular disk-shaped structure; an inner support ring is provided in the middle of the surface of the first disk body, and at least two branches extending outward in the radial direction are provided at intervals on the side of the inner support ring; the second disk body assembly includes a second disk body, which is a circular disk-shaped structure; an inner support ring is provided in the middle of the surface of the second disk body, and at least two branches extending outward in the radial direction are provided at intervals on the side of the inner support ring.

[0017] Preferably, at least two bosses are provided on the first disk body and the second disk body at intervals in the circumferential direction, and mounting holes are provided on the bosses; the connecting assembly includes a third connecting tube and a bolt, wherein the third connecting tube includes two, and the two side walls of the third connecting tube are respectively provided with inwardly recessed grooves and inlays, and the inlays and grooves of the two third connecting tubes are embedded with each other to form a cylindrical body; at least two mounting seats are provided on the inner side wall of the third connecting tube, and mounting holes are provided on the mounting seats in the axial direction; the bolts include at least two, and at least two bolts are inserted into the mounting holes on the first disk body, the mounting seat and the second disk body in the axial direction, so as to connect and fix the first disk body, the circumferential The cylinder body and the second disk body; the limiting assembly includes a limiting groove and a limiting ring, wherein the limiting groove includes two, the two limiting grooves are respectively arranged on the top surface of the first disk body and the bottom surface of the second disk body, and are respectively concentric with the first disk body and the second disk body; the two limiting grooves are respectively sunken into the disk bodies of the first disk body and the second disk body; the limiting ring includes two, the two limiting rings are respectively arranged on the inner sides of the two limiting grooves, and protrude outward; during assembly, the two ends of the cylinder body are respectively embedded in the two limiting grooves, and are guided and limited by the limiting grooves and the limiting rings; the limiting ring is also provided with at least two through grooves, and at least two through grooves are arranged on the limiting ring at intervals, and are arranged corresponding to the bosses to facilitate the insertion of bolts.

[0018] The beneficial effects of the utility model are:

[0019] In view of the defects and shortcomings of the prior art, the utility model independently developed and designed a cable winding disk made of a mixture of wood fiber and adhesive through molding, which can solve environmental protection problems and achieve single-piece integrated molding, effectively reducing production costs. It adopts a detachable component connection method, which is convenient for mass production, reduces transportation space occupancy, reduces transportation costs, and has a connection limit guide function to improve assembly accuracy and assembly efficiency. It is a combined wood fiber molded environmentally friendly cable winding disk.

[0020] The utility model aims to change the production principle of the existing winding reel made of plastic material, and uses a mixed solid powder material of wood fiber and adhesive as the manufacturing material, while solving the problem of poor environmental performance of plastic materials. The components are detachably connected, and the components with the same structure can be mass-produced in the production process. Then, the components are transported in batches from the production site to the use site, and assembled at the use site. While realizing mass homogeneous production, the space occupancy during transportation is effectively reduced, and the transportation cost is reduced. In the assembly process, the utility model guides and limits the first disk body component and the second disk body component through a limiting component, and while ensuring the rapid installation of the first disk body component and the second disk body component, the relative position accuracy during assembly is effectively improved, the assembly efficiency and assembly quality are improved, and the number of defective assembly products is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the three-dimensional structural schematic diagrams of Example 1 of the utility model.

[0022] Figure 2 This is the second schematic diagram of the three-dimensional structure of Example 1 of the utility model.

[0023] Figure 3 This is one of the schematic diagrams of the component disassembly structure of Example 1 of the utility model.

[0024] Figure 4 This is the second schematic diagram of the component disassembly structure of Example 1 of the utility model.

[0025] Figure 5 This is one of the three-dimensional structural schematic diagrams of Example 2 of the utility model.

[0026] Figure 6 This is the second schematic diagram of the three-dimensional structure of Example 2 of the utility model.

[0027] Figure 7 This is one of the schematic diagrams of the component disassembly structure of Example 2 of the utility model.

[0028] Figure 8 This is the second schematic diagram of the component disassembly structure of Example 2 of the utility model.

[0029] Fig. 9 This is one of the three-dimensional structural schematic diagrams of Example 3 of the utility model.

[0030] Fig.10 This is the second schematic diagram of the three-dimensional structure of Example 3 of the utility model.

[0031] Fig.11 This is one of the schematic diagrams of the component disassembly structure of Example 3 of the utility model.

[0032] Fig.12 This is the second schematic diagram of the component disassembly structure of Example 3 of the utility model.

[0033] Fig.13 This is one of the three-dimensional structural schematic diagrams of Example 4 of the utility model.

[0034] Fig.14 This is the second schematic diagram of the three-dimensional structure of Example 4 of the utility model.

[0035] Fig.15 This is one of the schematic diagrams of the component disassembly structure of Example 4 of the utility model.

[0036] Fig.16 This is the second schematic diagram of the component disassembly structure of Example 4 of the utility model.

[0037] Fig.17This is one of the three-dimensional structural schematic diagrams of Example 5 of the utility model.

[0038] Fig.18 This is the second schematic diagram of the three-dimensional structure of Example 5 of the utility model.

[0039] Fig.19 This is one of the schematic diagrams of the component disassembly structure of Example 5 of the utility model.

[0040] Fig. 20 This is the second schematic diagram of the component disassembly structure of Example 5 of the utility model.

[0041] Fig.21 This is one of the three-dimensional structural schematic diagrams of Example 6 of the utility model.

[0042] Fig. 22 This is the second schematic diagram of the three-dimensional structure of Example 6 of the utility model.

[0043] Fig.23 This is one of the schematic diagrams of the component disassembly structure of Example 6 of the utility model.

[0044] Fig.24 This is the second schematic diagram of the component disassembly structure of Example 6 of the utility model.

[0045] Fig.25 This is the third schematic diagram of the component disassembly structure of Example 6 of the utility model.

[0046] Fig.26 This is a schematic diagram of the component disassembly structure of the support tube of Example 6 of the utility model.

[0047] Fig. 27 It is a three-dimensional structural schematic diagram of the molding equipment of the utility model. DETAILED DESCRIPTION

[0048] The utility model will be further described below in conjunction with the accompanying drawings:

[0049] like Figures 1 to 26As shown, the technical solution adopted in this embodiment is as follows: a combined wood fiber molded environmentally friendly cable winding disk, comprising a first disk body assembly and a second disk body assembly arranged in parallel and spaced apart, the first disk body assembly and the second disk body assembly are detachably connected to form a winding disk; the space between the first disk body assembly and the second disk body assembly is a winding space for winding cables; the first disk body assembly and the second disk body assembly are connected to each other through a limiting assembly, and the limiting assembly is arranged on the first disk body assembly and / or the second disk body assembly, and is used for guiding and limiting when the first disk body assembly and the second disk body assembly are connected to each other; the first disk body assembly and the second disk body assembly are connected and fixed to each other through a connecting assembly; the first disk body assembly, the second disk body assembly and the limiting assembly are made by molding; the raw material made by molding is a mixed material of wood fiber and adhesive, and the mixed material is a solid powder structure. Example 1

[0050] like Figures 1 to 4 As shown in the figure, as an embodiment of the utility model, the first disk assembly of this embodiment includes a first disk 2, and the first disk 2 is a circular disk-shaped structure; a circular support ring is provided in the middle of the surface of the first disk 2, and a through hole penetrating the first disk 2 is opened in the middle of the circular support ring, and at least two support bars 8 extending outward in the radial direction are provided at intervals on the side of the circular support ring; the second disk assembly includes a second disk 3 and a support tube 1; the second disk 3 is a circular disk-shaped structure; the support tube 1 is a cylindrical structure, and is located at the bottom of the second disk 3, and is integrally molded with the second disk 3; the bottom of the support tube 1 is detachably connected to the first disk 2, and the first disk A winding space is formed between the body 2, the second disk body 3 and the support tube 1; a partition 5 arranged in a radial direction is provided inside the support tube 1, and the partition 5 is sunken downward from the surface of the second disk body 3, and a wire storage space B is formed between the partition 5 and the inner wall of the support tube 1; a wire inlet groove A is opened on the second disk body 3, and the wire inlet groove A connects the winding space and the wire storage space B, so that the wire ends in the winding space enter the wire storage space B; an inner support ring 4 arranged coaxially with the support tube 1 is provided in the middle of the partition 5 of the second disk body, and at least two concave-convex strips 6 are provided on the side of the inner support ring 4, and the concave-convex strips 6 extend in a radial direction on the partition 5, and are concave downward on the surface of the partition 5, and convex downward on the bottom surface of the partition 5.

[0051] The limiting assembly includes an embedded ring 12; the embedded ring 12 is a circular ring structure and is arranged on the surface of the first disk body 2 and is arranged concentrically with the first disk body 2; the outer diameter of the embedded ring 12 is not less than the inner diameter of the support tube 1, the bottom of the support tube 1 is nested on the embedded ring 12, and is guided and limited by the embedded ring 12; the outer end of the support bar 8 is connected to the inner wall of the embedded ring 12 to enhance the bearing capacity of the embedded ring 12; at least two bosses 9 are provided on the first disk body 2, and mounting holes are opened on the bosses 9; mounting holes are opened on the convex and concave strips 6 along the axial direction corresponding to the bosses 9; the connecting assembly includes bolts 7; the bolts 7 include at least two, and at least two bolts 7 pass through the mounting holes on the bosses 9 and the convex and concave strips 6 along the axial direction to connect and fix the first disk body 2 and the partition 5. Example 2

[0052] like Figures 5 to 8 As shown, as an embodiment of the utility model, the first disk assembly of this embodiment includes a first disk body 2 and a first connecting tube 01, the first disk body 2 is a circular disk-shaped structure; the top surface of the first disk body 2 is provided with a first connecting tube 01, the first connecting tube 01 is a circular cylindrical structure, and extends upward in the axial direction; a partition 5 is provided in the first connecting tube 01, and the partition 5 is located at the top of the first connecting tube 01; an inner support ring 4 is provided in the middle of the partition 5, and at least two concave and convex strips 6 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4; the second disk assembly includes a second disk body 3 and a first connecting tube 01, the second disk body 3 is a circular disk-shaped structure; the bottom surface of the second disk body 3 is provided with a first connecting tube 01, the first connecting tube 01 is a circular cylindrical structure, and extends upward in the axial direction Extending downward; a partition plate 5 is provided in the first connecting tube 01, and the partition plate 5 is located at the bottom of the first connecting tube 01; an inner support ring 4 is provided in the middle of the partition plate 5, and at least two concave-convex strips 6 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4; the first connecting tubes 01 of the first disk body 2 and the second disk body 3 are connected to each other to form a support tube structure, and the space between the first disk body 2, the second disk body 3 and the support tube structure forms a winding space; wire storage spaces B are formed in the first connecting tubes 01 on the first disk body 2 and the second disk body 3 respectively; a wire inlet groove A is provided between the wire storage space B and the winding space, and the wire inlet groove A passes through the wire storage space B and the winding space so that the wire head in the winding space can enter the wire storage space B; the concave-convex strip 6 is recessed inwardly along the wire storage space B corresponding to the partition plate 5 where it is located.

[0053] The limiting assembly includes an arc-shaped limiting strip 10; the arc-shaped limiting strip 10 is arranged on the first connecting tube 01 and is located on the end wall of the first connecting tube 01 away from the line storage space B; the arc-shaped limiting strip 10 on the first connecting tube 01 includes at least two, and at least two arc-shaped limiting strips 10 are arranged at intervals in the circumferential direction; the arc-shaped limiting strip on the first connecting tube 01 of the first disk body 2 is inserted into the first connecting tube 01 of the second disk body 3; the arc-shaped limiting strip on the first connecting tube 01 of the second disk body 3 is inserted into the first connecting tube 01 of the first disk body 3, so as to guide the limiting during connection; the concave-convex strip 6 is provided with a mounting hole; the connecting assembly includes a bolt 7; the bolt 7 includes at least two, and at least two bolts 7 are inserted into the mounting holes of the concave-convex strips 6 on the first disk body 2 and the second disk body 3 along the axial direction, so as to connect and fix the first disk body 2 and the second disk body 3. Example 3

[0054] like Figures 9 to 12 As shown, as an embodiment of the utility model, the first disk body assembly of this embodiment includes a first disk body 2 and a first connecting tube 01, the first disk body 2 is a circular disk-shaped structure; the top surface of the first disk body 2 is provided with a first connecting tube 01, the first connecting tube 01 is a circular cylindrical structure, and extends upward in the axial direction; a partition 5 is provided in the first connecting tube 01; an inner support ring 4 is provided in the middle of the partition 5, and at least two branches 8 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4; the second disk body assembly includes a second disk body 3 and a first connecting tube 01, the second disk body 3 is a circular disk-shaped structure; the bottom surface of the second disk body 3 is provided with a first connecting tube 01, the first connecting tube 01 is a circular cylindrical structure, and extends downward in the axial direction; a partition 5 is provided in the first connecting tube 01; an inner support ring 4 is provided in the middle of the partition 5, and at least two branches 8 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4.

[0055] At least two bosses 9 are provided on the partition 5, and mounting holes are provided on the boss 9; the connecting assembly includes a second connecting tube 02, a partition plate 11 and a bolt 7, wherein the partition plate 11 is a circular disk-shaped structure; the second connecting tube 02 is a cylindrical structure, the second connecting tube 02 is located at the bottom of the partition plate 11, and is concentric with the partition plate 11; the second connecting tube 02 and the partition plate 11 are respectively connected to the first connecting tube 01 on the first disk body 2 and the second disk body 3; the space between the first disk body 2, the second disk body 3, the first connecting tube 01 and the second connecting tube 02 forms a winding space; the winding space is independently divided into two sub-winding spaces along the axial direction by the partition plate 11; the partition plate 11 is provided with a wire entry groove A, and the groove A connects the two sub-winding spaces so that the cable can pass through; the bolt 7 includes at least two, and at least two bolts 7 are inserted in the first disk body 2 and the second disk body 3 along the axial direction. The guide ring D is arranged on the bottom end wall of the second connecting tube 02 and is recessed inwardly. The outer diameter of the guide ring D is not larger than the inner diameter of the guide groove C of the first connecting tube 01 on the first disk body 2 and the second disk body 3, and is embedded in the guide groove C so as to guide and limit the second connecting tube 02 during installation. The embedded ring 12 is arranged on the surface of the partition plate 11 and is concentric with the partition plate 11. The outer diameter of the embedded ring 12 is not larger than the inner diameter of the guide groove C of the first connecting tube 01 on the second disk body 3, and is embedded in the guide groove C so as to guide and limit the second connecting tube 02 during installation. Example 4

[0056] like Figures 13 to 16 As shown, as an embodiment of the utility model, the first disk assembly of this embodiment includes a first disk body 2, and the first disk body 2 is a circular disk-shaped structure; an inner support ring 4 is provided in the middle of the surface of the first disk body 2, and at least two convex strips 13 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4; the second disk body assembly includes a second disk body 3 and a support tube 1; the second disk body 3 is a circular disk-shaped structure; an inner support ring 4 is provided in the middle of the second disk body 3 coaxially arranged with the support tube 1, and at least two convex strips 13 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4; the support tube 1 is a cylindrical structure and is located at the bottom of the second disk body 3 and is integrally molded with the second disk body 3; the bottom of the support tube 1 is detachably connected to the first disk body 2, and a winding space is formed between the first disk body 2, the second disk body 3 and the support tube 1; at least two convex strips 13 are provided at intervals on the disk surfaces of the first disk body 2 and the second disk body 3.

[0057] The limiting assembly includes an embedded ring 12 and a guide groove C, wherein the embedded ring 12 is a circular ring structure, the embedded ring 12 is arranged on the top surface of the first disk body 2 and is coaxial with the first disk body 2; the guide groove C is a circular groove structure, the guide groove C is opened on the inner side wall of the support tube 1, the inner diameter of the guide groove C is not less than the outer diameter of the embedded ring 12, the embedded ring 12 is embedded in the guide groove C, and guides and limits the first disk body 2 and the support tube 1; at least two bosses 9 are respectively provided on the first disk body 2 and the second disk body 3, and mounting holes are opened on the bosses 9; the connecting assembly includes bolts 7; the bolts 7 include at least two, and at least two bolts 7 are inserted into the mounting holes on the first disk body 2 and the second disk body 3 along the axial direction to connect and fix the first disk body 2 and the second disk body 3. Example 5

[0058] like Figures 17 to 20 As shown, as an embodiment of the utility model, the first disk body assembly of this embodiment includes a first disk body 2 and a first connecting tube 01, and the first disk body 2 is a circular disk-shaped structure; the top surface of the first disk body 2 is provided with a first connecting tube 01, and the first connecting tube 01 is a circular cylindrical structure and extends upward in the axial direction; an inner support ring 4 is provided in the middle of the top surface of the first disk body 2, and at least two branches 8 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4; the second disk body assembly includes a second disk body 3 and a first connecting tube 01, and the second disk body 3 is a circular disk-shaped structure; the bottom surface of the second disk body 3 is provided with a first connecting tube 01, and the first connecting tube 01 is a circular cylindrical structure and extends downward in the axial direction; the middle of the bottom surface of the second disk body 3 is provided with an inner support ring 4, and at least two branches 8 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4.

[0059] The limiting assembly includes an insert block 14, which includes at least two blocks. The at least two insert blocks 14 are arranged on the end wall of the first connecting tube 01 on the first disk body 2 and the second disk body 3 at intervals in the circumferential direction, and extend axially outward along the inner wall of the first connecting tube 01; when the first connecting tubes 01 on the first disk body 2 and the second disk body 3 are connected to each other, the insert block 14 on one first connecting tube 01 is inserted into the other connecting tube 01 to guide and limit the two connecting tubes 01; at least two bosses 9 are respectively provided on the first disk body 2 and the second disk body 3, and mounting holes are opened on the bosses 9; the connecting assembly includes bolts 7; the bolts 7 include at least two bolts, and at least two bolts 7 are inserted in the mounting holes of the first disk body 2 and the second disk body 3 along the axial direction to connect and fix the first disk body 2 and the second disk body 3. Example 6

[0060] like Figure 21 to Figure 26As shown, as an embodiment of the utility model, the first disk body assembly of this embodiment includes a first disk body 2, and the first disk body 2 is a circular disk-shaped structure; an inner support ring 4 is provided in the middle of the surface of the first disk body 2, and at least two branches 8 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4; the second disk body assembly includes a second disk body 3, and the second disk body 3 is a circular disk-shaped structure; an inner support ring 4 is provided in the middle of the surface of the second disk body 3, and at least two branches 8 extending outward in the radial direction are provided at intervals on the side of the inner support ring 4.

[0061] At least two bosses 9 are provided on the first disk body 2 and the second disk body 3 at intervals in the circumferential direction, and mounting holes are provided on the bosses 9; the connecting assembly includes a third connecting tube 03 and a bolt 7, wherein the third connecting tube 03 includes two, and the two side walls of the third connecting tube 03 are respectively provided with inwardly recessed grooves G and fillets 17, and the fillets 17 and grooves G of the two third connecting tubes 03 are interlocked with each other and spliced ​​to form a cylindrical body; at least two mounting seats 16 are provided on the inner side wall of the third connecting tube 03, and mounting holes are provided on the mounting seats 16 along the axial direction; the bolts 7 include at least two, and at least two bolts 7 are inserted into the mounting holes on the first disk body 2, the mounting seat 16 and the second disk body 3 along the axial direction, and are used to connect and fix the first disk body 2 and the cylindrical body and the second disk body 3; the limiting assembly includes a limiting groove E and a limiting ring 15, wherein the limiting groove E includes two, the two limiting grooves E are respectively arranged on the top surface of the first disk body 2 and the bottom surface of the second disk body 3, and are respectively concentric with the first disk body 2 and the second disk body 3; the two limiting grooves E are respectively sunken into the disk bodies of the first disk body 2 and the second disk body 3; the limiting ring 15 includes two, the two limiting rings 15 are respectively arranged on the inner sides of the two limiting grooves E, and protrude outward; during assembly, the two ends of the cylinder are respectively embedded in the two limiting grooves E, and are guided and limited by the limiting grooves E and the limiting ring 15; the limiting ring 15 is also provided with at least two through grooves F, at least two through grooves F are spaced apart and arranged on the limiting ring 15, and are arranged corresponding to the boss 9 to facilitate the insertion of the bolt 7. Example 7

[0062] like Fig. 27 As shown, as an embodiment of the utility model, the molding equipment for compression molding winding disks in this embodiment includes a machine base a, a machine table b, guide pillars c, an upper mold base d and a molding cylinder e; the machine base a is horizontally arranged, and the machine table b is horizontally arranged on the machine base a, and is used to install the molding lower mold according to different molded products; the guide pillars c include at least two, and at least two guide pillars c are vertically arranged on the machine table b and extend upward; the upper mold base d can be slidably inserted on the guide pillars c and guided and limited by the guide pillars c; the bottom of the upper mold base d is installed with a molding upper mold according to different molded products; the molding cylinder e is arranged on the top of the guide pillars c, and outputs power to drive the upper mold base d to move downward for product compression molding.

[0063] Furthermore, the utility model designs an environmentally friendly cable winding disk made of a mixture of wood fiber and adhesive by molding, which solves environmental protection problems while achieving single-piece integrated molding, effectively reducing production costs, and adopts a detachable component connection method, which is convenient for mass production, reduces transportation space occupancy, reduces transportation costs, and has a connection limit guide function to improve assembly accuracy and assembly efficiency. The utility model aims to change the production principle of the existing winding reel made of plastic material, and uses a mixed solid powder material of wood fiber and adhesive as the manufacturing material, while solving the problem of poor environmental performance of plastic materials. The components are detachably connected, and the components with the same structure can be mass-produced in the production process. Then, the components are transported in batches from the production site to the use site, and assembled at the use site. While realizing mass homogeneous production, the space occupancy during transportation is effectively reduced, and the transportation cost is reduced. In the assembly process, the utility model guides and limits the first disk body component and the second disk body component through a limiting component, and while ensuring the rapid installation of the first disk body component and the second disk body component, the relative position accuracy during assembly is effectively improved, the assembly efficiency and assembly quality are improved, and the number of defective assembly products is reduced.

[0064] The embodiments of the utility model are only to introduce its specific implementation methods and are not intended to limit its protection scope. The technicians in this industry can make some modifications inspired by the embodiments, so any equivalent changes or modifications made in accordance with the scope of the utility model patent are within the scope of the claims of the utility model patent.

Claims

1. A modular wood fiber molded environmentally friendly cable winding drum, characterized in that: It comprises a first disc assembly and a second disc assembly arranged in parallel and at intervals, the first disc assembly and the second disc assembly are detachably connected to form a winding disc; the space between the first disc assembly and the second disc assembly is a winding space for winding cables; The first tray assembly and the second tray assembly are butted against each other via a limiting assembly, and the limiting assembly is arranged on the first tray assembly and / or the second tray assembly and is used for guiding and limiting when the first tray assembly and the second tray assembly are connected to each other; The first tray assembly and the second tray assembly are connected and fixed to each other via a connecting assembly; The first disc body component, the second disc body component and the limiter component are made by compression molding; the raw material of the compression molding is a mixed material of wood fiber and adhesive, and the mixed material is a solid powder structure.

2. The combined wood fiber molded environmentally friendly cable winding drum according to claim 1, characterized in that: The first disk assembly comprises a first disk (2), the first disk (2) being a circular disk-shaped structure; a circular support ring is provided in the middle of the surface of the first disk (2), a through hole penetrating the first disk (2) is provided in the middle of the circular support ring, and at least two support strips (8) extending outwardly in a radial direction are provided at intervals on the side of the circular support ring; The second disc assembly comprises a second disc (3) and a support tube (1); the second disc (3) is a circular disc-shaped structure; the support tube (1) is a cylindrical structure and is located at the bottom of the second disc (3) and is integrally molded with the second disc (3); the bottom of the support tube (1) is detachably connected to the first disc (2), and a winding space is formed between the first disc (2), the second disc (3) and the support tube (1); The support tube (1) is provided with a partition (5) arranged in a radial direction inside, the partition (5) is sunken downward from the surface of the second disk (3), and a wire storage space (B) is formed between the partition (5) and the inner wall of the support tube (1); the second disk (3) is provided with a wire inlet groove (A), the wire inlet groove (A) connects the winding space and the wire storage space (B), so that the wire ends in the winding space can enter the wire storage space (B); An inner support ring (4) is provided in the middle of the partition (5) of the second disk body and is arranged coaxially with the support tube (1). At least two concave-convex strips (6) are provided on the side of the inner support ring (4). The concave-convex strips (6) extend in a radial direction on the partition (5), are concave downward on the surface of the partition (5), and are convex downward on the bottom surface of the partition (5).

3. The combined wood fiber molded environmentally friendly cable winding drum according to claim 2, characterized in that: The limiting assembly comprises an embedded ring (12); the embedded ring (12) is a circular ring structure and is arranged on the surface of the first disk body (2) and is arranged concentrically with the first disk body (2); the outer diameter of the embedded ring (12) is not less than the inner diameter of the support tube (1); the bottom of the support tube (1) is nested on the embedded ring (12) and is guided and limited by the embedded ring (12); the outer end of the support bar (8) is connected to the inner wall of the embedded ring (12) to enhance the bearing capacity of the embedded ring (12); At least two bosses (9) are provided on the first disk body (2), and mounting holes are provided on the bosses (9); mounting holes are provided on the concave-convex strip (6) along the axial direction corresponding to the bosses (9); The connection assembly comprises bolts (7); the bolts (7) comprise at least two bolts, and the at least two bolts (7) pass through the mounting holes on the boss (9) and the concave-convex strip (6) in the axial direction, and are used to connect and fix the first disk body (2) and the partition plate (5).

4. The combined wood fiber molded environmentally friendly cable winding drum according to claim 1, characterized in that: The first disk assembly comprises a first disk (2) and a first connecting tube (01), the first disk (2) being a circular disk-shaped structure; a first connecting tube (01) is provided on the top surface of the first disk (2), the first connecting tube (01) being a circular tube-shaped structure and extending upwards in the axial direction; a partition (5) is provided inside the first connecting tube (01), the partition (5) being located at the top of the first connecting tube (01); an inner support ring (4) is provided in the middle of the partition (5), and at least two concave-convex strips (6) extending outwards in the radial direction are provided at intervals on the side of the inner support ring (4); The second disk assembly comprises a second disk (3) and a first connecting tube (01), the second disk (3) being a circular disk-shaped structure; the first connecting tube (01) is provided on the bottom surface of the second disk (3), the first connecting tube (01) being a circular tube-shaped structure and extending downwardly in the axial direction; a partition (5) is provided inside the first connecting tube (01), the partition (5) being located at the bottom of the first connecting tube (01); an inner support ring (4) is provided in the middle of the partition (5), and at least two concave-convex strips (6) extending outwardly in the radial direction are provided at intervals on the side of the inner support ring (4); The first connecting tubes (01) of the first disc body (2) and the second disc body (3) are connected to each other to form a supporting tube structure, and the space between the first disc body (2), the second disc body (3) and the supporting tube structure forms a winding space; A wire storage space (B) is formed in the first connecting tube (01) on the first disk (2) and the second disk (3), respectively; a wire inlet groove (A) is provided between the wire storage space (B) and the wire winding space, and the wire inlet groove (A) passes through the wire storage space (B) and the wire winding space so that the wire ends in the wire winding space can enter the wire storage space (B); The concave-convex strip (6) is concave inwardly along the wire storage space (B) corresponding to the partition (5) where it is located.

5. The combined wood fiber molded environmentally friendly cable winding drum according to claim 4, characterized in that: The limiting assembly comprises an arc-shaped limiting strip (10); the arc-shaped limiting strip (10) is arranged on the first connecting tube (01) and is located on the end wall of the first connecting tube (01) away from the wire storage space (B); the arc-shaped limiting strip (10) on the first connecting tube (01) comprises at least two arc-shaped limiting strips (10), and the at least two arc-shaped limiting strips (10) are arranged at intervals along the circumferential direction; the arc-shaped limiting strip on the first connecting tube (01) of the first disk body (2) is inserted into the first connecting tube (01) of the second disk body (3); the arc-shaped limiting strip on the first connecting tube (01) of the second disk body (3) is inserted into the first connecting tube (01) of the first disk body (2) so as to guide the limiting during connection; The concave-convex strip (6) is provided with a mounting hole; The connection assembly comprises bolts (7); the bolts (7) comprise at least two bolts, and the at least two bolts (7) are inserted into mounting holes of the concave-convex strips (6) on the first disk body (2) and the second disk body (3) along the axial direction, so as to connect and fix the first disk body (2) and the second disk body (3).

6. The combined wood fiber molded environmentally friendly cable winding drum according to claim 1, characterized in that: The first disk assembly comprises a first disk (2) and a first connecting tube (01), the first disk (2) being a circular disk-shaped structure; a first connecting tube (01) is provided on the top surface of the first disk (2), the first connecting tube (01) being a circular tube-shaped structure and extending upwards in the axial direction; a partition (5) is provided inside the first connecting tube (01); an inner support ring (4) is provided in the middle of the partition (5), and at least two support strips (8) extending outwards in the radial direction are provided at intervals on the side of the inner support ring (4); The second disk assembly comprises a second disk (3) and a first connecting tube (01), the second disk (3) being a circular disk-shaped structure; the first connecting tube (01) is provided on the bottom surface of the second disk (3), the first connecting tube (01) being a circular tube-shaped structure and extending downwardly in the axial direction; a partition (5) is provided inside the first connecting tube (01); an inner support ring (4) is provided in the middle of the partition (5), and at least two support strips (8) extending outwardly in the radial direction are provided at intervals on the side of the inner support ring (4).

7. The combined wood fiber molded environmentally friendly cable winding drum according to claim 6, characterized in that: The partition plate (5) is provided with at least two bosses (9), and the bosses (9) are provided with mounting holes; The connection assembly comprises a second connection tube (02), a spacer (11) and a bolt (7), wherein the spacer (11) is a circular disk-shaped structure; the second connection tube (02) is a cylindrical structure, the second connection tube (02) is located at the bottom of the spacer (11) and is concentric with the spacer (11); the second connection tube (02) and the spacer (11) are respectively connected to the first connection tube (01) on the first disk body (2) and the second disk body (3); the space between the first disk body (2), the second disk body (3), the first connection tube (01) and the second connection tube (02) forms a winding space; the winding space is independently divided into two sub-winding spaces along the axial direction by the spacer (11); a wire inlet groove (A) is provided on the spacer (11), and the wire inlet groove (A) connects the two sub-winding spaces so that the cable can pass through; The bolts (7) include at least two bolts, and the at least two bolts (7) are inserted into the mounting holes on the partitions (5) of the first disk body (2) and the second disk body (3) along the axial direction, so as to fix the first disk body (2) and the second disk body (3) together; The limiting assembly comprises a guide groove (C), a guide ring (D) and an embedded ring (12), wherein the guide groove (C) is a circular ring-shaped groove body, the guide groove (C) is arranged on the inner wall of the first connecting tube (01) on the first disk body (2) and the second disk body (3), and is recessed outward in the radial direction; the guide ring (D) is arranged on the bottom end wall of the second connecting tube (02) and is recessed inward, the outer diameter of the guide ring (D) is not larger than the inner diameter of the guide groove (C) of the first connecting tube (01) on the first disk body (2), and is embedded in the guide groove (C) so as to guide and limit the second connecting tube (02) during installation; the embedded ring (12) is arranged on the surface of the partition disk (11) and is concentric with the partition disk (11), the outer diameter of the embedded ring (12) is not larger than the inner diameter of the guide groove (C) of the first connecting tube (01) on the second disk body (3), and is embedded in the guide groove (C) so as to guide and limit the second connecting tube (02) during installation.

8. The combined wood fiber molded environmentally friendly cable winding drum according to claim 1, characterized in that: The first disc assembly comprises a first disc (2), the first disc (2) being a circular disc-shaped structure; an inner support ring (4) is provided in the middle of the surface of the first disc (2), and at least two convex strips (13) extending outwardly in a radial direction are provided at intervals on the side of the inner support ring (4); The second disc assembly comprises a second disc (3) and a support tube (1); the second disc (3) is a circular disc-shaped structure; an inner support ring (4) is provided in the middle of the second disc (3) and is coaxially arranged with the support tube (1); at least two convex strips (13) extending outward in a radial direction are provided at intervals on the side of the inner support ring (4); the support tube (1) is a cylindrical structure and is located at the bottom of the second disc (3) and is integrally molded with the second disc (3); the bottom of the support tube (1) is detachably connected to the first disc (2), and a winding space is formed between the first disc (2), the second disc (3) and the support tube (1); At least two convex strips (13) are arranged at intervals on the disk surfaces of the first disk body (2) and the second disk body (3).

9. The combined wood fiber molded environmentally friendly cable winding drum according to claim 8, characterized in that: The limiting assembly comprises an embedded ring (12) and a guide groove (C), wherein the embedded ring (12) is a circular ring structure, the embedded ring (12) is arranged on the top surface of the first disk body (2) and is coaxial with the first disk body (2); the guide groove (C) is a circular groove structure, the guide groove (C) is opened on the inner side wall of the support tube (1), the inner diameter of the guide groove (C) is not less than the outer diameter of the embedded ring (12), and the embedded ring (12) is embedded in the guide groove (C) to guide and limit the first disk body (2) and the support tube (1); At least two bosses (9) are respectively provided on the first disk body (2) and the second disk body (3), and mounting holes are provided on the bosses (9); The connection assembly comprises bolts (7); the bolts (7) comprise at least two bolts, and the at least two bolts (7) are inserted into mounting holes on the first disk body (2) and the second disk body (3) along the axial direction so as to connect and fix the first disk body (2) and the second disk body (3).

10. The combined wood fiber molded environmentally friendly cable winding drum according to claim 1, characterized in that: The first disc assembly comprises a first disc (2) and a first connecting tube (01), the first disc (2) being a circular disc-shaped structure; a first connecting tube (01) is provided on the top surface of the first disc (2), the first connecting tube (01) being a circular cylindrical structure and extending upwards in the axial direction; an inner support ring (4) is provided in the middle of the top surface of the first disc (2), and at least two support strips (8) extending outwards in the radial direction are provided at intervals on the side of the inner support ring (4); The second disc assembly comprises a second disc (3) and a first connecting tube (01), the second disc (3) being a circular disc-shaped structure; the first connecting tube (01) is provided on the bottom surface of the second disc (3), the first connecting tube (01) being a circular cylindrical structure and extending downwardly in the axial direction; an inner support ring (4) is provided in the middle of the bottom surface of the second disc (3), and at least two support strips (8) extending outwardly in the radial direction are provided at intervals on the side of the inner support ring (4).

11. The combined wood fiber molded environmentally friendly cable winding drum according to claim 10, characterized in that: The limiting assembly comprises an insert block (14), the insert block (14) comprising at least two blocks, the at least two insert blocks (14) being arranged at intervals along the circumferential direction on the end walls of the first connecting tube (01) on the first disk body (2) and the second disk body (3), and extending axially outward along the inner side wall of the first connecting tube (01); when the first connecting tubes (01) on the first disk body (2) and the second disk body (3) are connected to each other, the insert block (14) on one first connecting tube (01) is inserted into the other connecting tube (01) so as to guide and limit the two connecting tubes (01); At least two bosses (9) are respectively provided on the first disk body (2) and the second disk body (3), and mounting holes are provided on the bosses (9); The connection assembly comprises bolts (7); the bolts (7) comprise at least two bolts, and the at least two bolts (7) are inserted into the mounting holes of the first disk body (2) and the second disk body (3) along the axial direction so as to connect and fix the first disk body (2) and the second disk body (3).

12. The combined wood fiber molded environmentally friendly cable winding drum according to claim 1, characterized in that: The first disc assembly comprises a first disc (2), the first disc (2) being a circular disc-shaped structure; an inner support ring (4) is provided in the middle of the surface of the first disc (2), and at least two support strips (8) extending outwardly in a radial direction are provided at intervals on the side of the inner support ring (4); The second disc assembly comprises a second disc (3), the second disc (3) being a circular disc-shaped structure; an inner support ring (4) is provided in the middle of the surface of the second disc (3), and at least two support strips (8) extending outwardly in a radial direction are provided at intervals on the side of the inner support ring (4).

13. The combined wood fiber molded environmentally friendly cable winding drum according to claim 12, characterized in that: At least two bosses (9) are provided on the first disk body (2) and the second disk body (3) at intervals in the circumferential direction, and mounting holes are provided on the bosses (9); The connecting assembly comprises a third connecting tube (03) and a bolt (7), wherein the third connecting tube (03) comprises two, and two side walls of the third connecting tube (03) are respectively provided with an inwardly recessed groove (G) and a fillet (17), and the fillet (17) and the groove (G) of the two third connecting tubes (03) are interlocked and spliced ​​to form a cylindrical body; at least two mounting seats (16) are provided on the inner side wall of the third connecting tube (03), and mounting holes are opened on the mounting seats (16) along the axial direction; The bolts (7) include at least two bolts, and the at least two bolts (7) are inserted into the mounting holes on the first disk body (2), the mounting seat (16) and the second disk body (3) along the axial direction, and are used to connect and fix the first disk body (2), the cylindrical body and the second disk body (3); The limiting assembly comprises a limiting groove (E) and a limiting ring (15), wherein the limiting groove (E) comprises two, the two limiting grooves (E) are respectively arranged on the top surface of the first disk body (2) and the bottom surface of the second disk body (3), and are respectively concentric with the first disk body (2) and the second disk body (3); the two limiting grooves (E) are respectively sunken into the disk bodies of the first disk body (2) and the second disk body (3); the limiting ring (15) comprises two, the two limiting rings (15) are respectively arranged on the inner sides of the two limiting grooves (E) and protrude outwards; during assembly, the two ends of the cylinder are respectively embedded in the two limiting grooves (E), and are guided and limited by the limiting grooves (E) and the limiting rings (15); The limiting ring (15) is also provided with at least two through grooves (F), which are arranged on the limiting ring (15) at intervals and corresponding to the bosses (9) so as to facilitate insertion of the bolts (7).

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