Detachable full iron plane fan-shaped cable shaft and corrugated cable shaft

Abstract

The utility model relates to the packaging technical field, the utility model provides a kind of full iron plane fan-shaped cable shaft and corrugated cable shaft of dismounting, it includes bearing bush, bearing bush is several, and is arc, and the circumferential arrangement of several bearing bushes is set as a cylindrical support shaft, bearing bush has fixed groove, fixed part is two, respectively set in support shaft both sides, fixed part has stop and fixed part, fixed part is set in fixed groove, stop is circular, for cable limit after cable winding on support shaft, connecting piece is set on fixed part, connecting piece is used for the relative position of fixed bush and fixed part. The technical problem that cable shaft is inconvenient to transport in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a detachable all-iron flat fan-shaped cable reel and a corrugated cable reel. Background Technology

[0002] In fields such as power engineering and communication cabling, cable reels serve as the core carrier for cable storage and laying, and their ease of transportation directly impacts project logistics costs and construction efficiency. Traditional cable reels, due to their integrated structural design, suffer from significant problems during transportation, including fixed volume that is difficult to compress, substantial waste during empty reel return trips, and low loading and unloading efficiency. This is particularly pronounced in cross-regional projects or remote construction sites, where inconvenient transportation leads to high logistics costs and project delays, becoming a key bottleneck restricting the economic efficiency and timeliness of cable laying operations.

[0003] Early and traditional cable reels were mostly "one-piece, non-separable" structures. Whether wooden or metal, their overall shape (cylindrical support shaft + side baffles) was fixed, making volume compression impossible to meet transportation needs. For example, a Φ600mm metal one-piece cable reel commonly used for high-voltage cables has an assembled diameter exceeding 800mm and a length exceeding 1200mm, with each reel occupying approximately 0.6m³ of transport space. A typical freight truck (with a cargo box volume of approximately 30m³) can only carry 40-50 such empty reels, a loading rate of less than 70%. If transporting solid reels with cables already wound around them, the number of reels will decrease by 30%-40% due to the further increase in cable diameter, leading to a significant increase in per-trip transportation costs.

[0004] The waste associated with the return transport of empty cable reels from traditional integrated cable reels is particularly severe. After cable laying is completed, the empty reels need to be transported from the construction site back to the warehouse or manufacturer, but they retain their assembled, complete volume and cannot be disassembled and compressed. Data shows that in cross-regional projects, the transportation cost of empty reels for return trips accounts for 40%-50% of the total transportation cost. Furthermore, due to the large size and weight of the empty reels (over 50kg each for integrated metal reels), some projects even choose to discard them to save costs, resulting in resource waste and increasing the procurement cost of new reels later.

[0005] Traditional integrated cable reels have extremely low loading, unloading, and handling efficiency, further exacerbating transportation inconvenience. On the one hand, the integrated structure concentrates weight (metal reels exceed 50kg, wooden reels exceed 30kg), requiring heavy equipment such as forklifts and cranes for loading and unloading. If such equipment is not available on the construction site, 3-4 people are needed to handle the load, and the loading and unloading time for a single reel exceeds 15 minutes, far exceeding the 5-minute loading and unloading efficiency of a single person for a disassembled structure. On the other hand, the irregular shape of the integrated reel (cylindrical + two side baffles) makes it prone to rolling and shifting during transportation and stacking, requiring additional ropes for fixation. Fixing time accounts for 20%-30% of the transportation preparation time, and there is still a risk of collision damage during transportation (such as cracking of wooden baffles or deformation of metal baffles).

[0006] The poor compatibility of traditional integrated cable reels indirectly increases the transportation burden. Different cable specifications (such as low-voltage cables and high-voltage cables) require cable reels of different diameters, necessitating the simultaneous transport of multiple specifications of integrated reels during project construction. For example, a substation project requires the laying of three cable specifications, necessitating the transport of three types of integrated cable reels: Φ400mm, Φ500mm, and Φ600mm. This not only increases the number of transport trips but also further reduces the utilization rate of the vehicle space due to the poor stacking compatibility of different reels, leading to a cumulative increase in transportation costs. Utility Model Content

[0007] To overcome the above-mentioned defects, embodiments of this utility model provide a detachable all-iron planar fan-shaped cable shaft and a corrugated cable shaft, which solves the technical problem of inconvenient transportation of cable shafts in the prior art.

[0008] According to one aspect, at least one embodiment of the present invention provides a detachable all-iron planar sector-shaped cable reel and a corrugated cable reel, comprising: The bearing bush is a plurality of arc-shaped bearing bushes arranged circumferentially to form a cylindrical support shaft, and the bearing bush has a fixing groove. Two fasteners are respectively disposed on both sides of the support shaft. Each fastener has a stop and a fixing part. The fixing part is disposed in the fixing groove. The stop is annular and is used to limit the cable winding behind the support shaft. A connector is disposed on the fixing member and is used to fix the relative position of the bearing bush and the fixing member.

[0009] As a further technical solution, the bearing bush has two bent portions, which are parallel to the axis of the support shaft and extend from the circumference of the support shaft toward the center. The fixing groove is located at both ends of the bent portions.

[0010] As a further technical solution, the bearing bush also has a support surface, and the bent portion has an operating part, which is parallel to the support surface and is used by the operator to assemble the support shaft.

[0011] As a further technical solution, the fixing part has several connecting holes, and the connecting member passes through two of the fixing members simultaneously to fix the relative positions of the two fixing members.

[0012] As a further technical solution, the fastener also has a structural reinforcement portion, which is located on one side of the fastener portion.

[0013] As a further technical solution, the structural reinforcement has a mounting hole in the middle, which is coaxial with the axis of the support shaft. The mounting hole is used to mount the support shaft on the support frame when winding and unwinding the wire.

[0014] As a further technical solution, the stop is planar.

[0015] As a further technical solution, the side of the stop away from the bearing has a support portion, which is used to prevent the stop from deforming under the pressure of the cable.

[0016] A detachable corrugated cable reel includes a detachable all-iron planar fan-shaped cable reel, wherein the stop is corrugated.

[0017] The beneficial effects of this utility model are as follows: In this utility model, a single bearing bush is a planar fan-shaped arc part (the cross-section is fan-shaped, the arc surface is smooth, and the central angle of the fan shape is adapted according to the number, such as 120° for 3 bearing bushes and 90° for 4 bearing bushes), and the material is all iron; each of the two axial ends of the bearing bush is provided with a fixing groove (rectangular groove, 3-5mm deep, and the width is adapted to the fixing part of the fixing component), which is used to cooperate with the fixing component for positioning.

[0018] The support shaft is composed of several bearing bushes spliced ​​together along the circumference, with the arc-shaped surface facing outward to form a complete cylindrical support shaft (the diameter is designed according to the cable specifications, such as 300-600mm); after splicing, the contact surface between the bearing bushes is a smoothly transitioned arc surface with a fan-shaped cross-section (named "planar fan shape"), without obvious gaps, ensuring that the cable will not get stuck or the insulation layer will not be damaged when it is wound; the number of bearing bushes can be adjusted as needed, with a minimum of two, to adapt to the needs of support shafts of different diameters. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 for Figure 1 A schematic diagram of the fastener structure in the embodiment; Figure 3 for Figure 1 A schematic diagram of the bearing structure in the embodiment; Figure 4 for Figure 3 An enlarged structural diagram of A in the embodiment; Figure 5 This is a schematic diagram of the detachable corrugated cable reel in this utility model; In the diagram: Bearing bush-1, Support shaft-2, Fixing groove-101, Bending part-102, Support surface-103, Operating part-104, Fixing part-3, Stop part-301, Fixing part-302, Connecting hole-303, Structural reinforcement part-304, Mounting hole-305, Support part-306, Connecting part-4. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0021] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-4 As shown, this invention illustrates a detachable all-iron planar fan-shaped cable shaft in one embodiment. The cable shaft consists of bearing bushes 1, fixing parts 3, and connecting parts 4. The entire structure is detachable and detachable, taking into account both cable winding stability and transportation convenience. Several arc-shaped bearing bushes 1 are assembled into a cylindrical support shaft 2 (the main body for cable winding). Two fixing parts 3 are respectively clamped on both sides of the axial direction of the support shaft 2 (to limit cable movement). The connecting parts 4 lock the relative positions of the bearing bushes and fixing parts. No welding is required throughout the process, resulting in high assembly and disassembly efficiency. Furthermore, the all-iron material can withstand the long-term winding load of heavy cables (such as high-voltage cables).

[0027] The bearing bush 1 has a fixing groove 101. There are two fixing members 3, which are respectively arranged on both sides of the support shaft 2. The fixing member 3 has a stop 301 and a fixing part 302. The fixing part 302 is arranged in the fixing groove 101. The stop 301 is annular and is used to limit the cable after the cable is wound around the support shaft 2. The connecting member 4 is arranged on the fixing member 3 and is used to fix the relative position of the bearing bush 1 and the fixing member 3.

[0028] Each bearing bush 1 is a planar fan-shaped arc part (the cross-section is fan-shaped, the arc surface is smooth, and the central angle of the fan shape is adapted according to the number, such as 120° for 3 bearing bushes and 90° for 4 bearing bushes), and the material is all iron; each end of the bearing bush 1 has a fixing groove 101 (rectangular groove, 3-5mm deep, and the width is adapted to the fixing part 302 of the fixing part 3) for positioning with the fixing part.

[0029] The support shaft is composed of several bearing bushes 1 spliced ​​along the circumference, with the arc-shaped surface facing outward to form a complete cylindrical support shaft 2 (the diameter is designed according to the cable specifications, such as 300-600mm); after splicing, the contact surface between the bearing bushes is a smoothly transitioned arc surface with a fan-shaped cross-section (named "planar fan shape"), without obvious gaps, ensuring that the cable will not get stuck or the insulation layer will not be damaged when it is wound; the number of bearing bushes can be adjusted as needed, with a minimum of two, to adapt to the needs of support shafts of different diameters.

[0030] The fixing component 3 consists of two all-iron components, symmetrically arranged on both sides of the axial direction of the support shaft 2. Each fixing component 3 includes a stop 301 and a fixing part 302, which are integrally formed. The stop 301 is a circular ring structure (the diameter is larger than that of the support shaft 2). Its function is to prevent the cable from moving axially when the cable is wound on the support shaft 2, and to prevent the cable from slipping off both ends of the support shaft, thus forming a "left and right limit". It is especially suitable for cables wound in multiple layers.

[0031] The fixing part 302 is an "insertion" along the inner ring of the retaining part 301. The insertion depth of the fixing part 302 matches the fixing groove 101 of the bearing bush. During assembly, the fixing part 302 is inserted into the fixing groove 101 at both ends of the bearing bush, directly restricting the relative position of several bearing bushes 1, and providing a basic positioning for the splicing of the support shaft 2.

[0032] Connector 4 is mounted on the stop 301 of fixing member 3. Two fixing members 3 are positioned opposite each other, and the same set of fixing parts 302 are penetrated by connector 4. Connector 4 passes through both stops 301, and a locking element, such as a nut, rigidly locks the fixing parts 302 to the fixing groove 101, preventing the bearing bush and fixing members from loosening after assembly. Threaded pin engagement eliminates the need for special tools (a wrench suffices), allowing for locking and disassembly by a single person. After disassembly, the components can be stacked flat, resulting in a small transport volume and significantly reduced logistics costs.

[0033] Several bearing shells 1 are circumferentially spliced ​​together to form a support shaft 2; the fixing parts 302 of the two fixing parts 3 are aligned with the fixing grooves 101 at both ends of the bearing shell and inserted; all fixing points are locked with the connector 4. The whole process is quick and easy to operate; the bearing shell 1, fixing parts 3, and connector 4 can be disassembled by reversing the operation. After disassembly, the bearing shell 1, fixing parts 3, and connector 4 are all independent parts with no easily damaged parts (such as buckles or plastic parts), which is suitable for long-term repeated disassembly and assembly.

[0034] The support shaft 2 formed after the bushing 1 is spliced ​​is a complete cylindrical surface (without protrusions or depressions). The tension is uniform when the cable is wound, and the cable insulation layer will not be worn due to the joint of the bushing 1. The annular plane design of the stop 301 can also avoid friction damage between the cable edge and the fixing part 3.

[0035] Furthermore, the bearing bush 1 has two bent portions 102, which are parallel to the axis of the support shaft 2 and extend from the periphery of the support shaft 2 toward the axis. The fixing groove 101 is located at both ends of the bent portions 102.

[0036] In this embodiment, the bent portion 102 of the bearing bush 1 is formed by integral bending of all iron. The two bent portions are distributed along the fan-shaped symmetrical line of the bearing bush 1 (to ensure balanced force distribution); the length direction is parallel to the axis of the support shaft 2 (the same as the axial length of the bearing bush). Each bent portion 102 has a fixing groove 101 at each of its "axial ends", for a total of 4 fixing grooves 101 per single bearing bush 1. The grooves are rectangular. The edges of the fixing grooves 101 are chamfered to avoid scratching the fixing portion 302 during assembly.

[0037] The structure of the bending part 102 extending towards the axis is equivalent to adding a "reinforcing rib" to the bearing 1, which can disperse the radial pressure when the cable is wound and prevent the bearing 1 from undergoing permanent deformation due to long-term load. It is especially suitable for high-voltage heavy-duty cables.

[0038] The fixing groove 101 is provided at both ends of the bending part, so that the fixing part 302 of the fixing member 3 is inserted to restrict the axial movement of the bearing 1.

[0039] Furthermore, the bearing bush 1 also has a support surface 103, and the bending portion 102 has an operating portion 104, which is parallel to the support surface 103 and is used by the operator to assemble the support shaft 2.

[0040] In this embodiment, the support surface 103 is the outer surface of the bearing bush 1, used to support the cable. The support surface 103 is an arc-shaped surface, and several support surfaces 103 form a complete cylinder. The operating part 104 is integrally formed at the end of the bending part 102, and has a sheet-like structure. It is completely parallel to the support surface 103, providing a gripping and force application point for the operator during assembly, which facilitates the alignment and splicing of the bearing bush. Together with the bending part 102 and the fixing groove 103, they form a complete bearing bush structure of "precise splicing - convenient operation - stable fixation", which further reduces the assembly difficulty and improves the overall stability of the support shaft. Furthermore, the fixing part 302 has a plurality of connecting holes 303, and the connecting member 4 passes through two fixing members 3 at the same time to fix the relative position of the two fixing members 3.

[0041] In this embodiment, each fixing part 302 is provided with a connecting hole 303 (the hole diameter is 0.1-0.2mm larger than that of the connector 4, which facilitates through insertion). The number of connecting holes 303 is adapted to the number of bearings (e.g., 3 bearings correspond to 6 connecting holes, 3 fixing parts on each side, and evenly distributed around the circumference) to ensure balanced force distribution.

[0042] The connector 4 is made of all-iron long bolt (with anti-loosening nut) or high-strength pin, and its length is slightly longer than "the thickness of the left fixing part + the thickness of the bearing bush bending part + the thickness of the right fixing part" (the excess part is used to install nuts or pins); after passing through, the two fixing parts 3 are pressed towards the middle by tightening the nuts or inserting pins, so that the fixing part 302 and the bending part fixing groove 101 fit tightly and there is no gap or shaking.

[0043] The through-type connection forms a rigid frame between the left-side fixing member, the bearing shell, and the right-side fixing member, rather than splicing independent components. When winding heavy cables, radial pressure and circumferential torque can be distributed to the double fixing members 3 through the connector 4, avoiding local overload of a single fixing member 3 or bearing shell 1. Even if subjected to impact during transportation (such as a slight drop), the double fixing members 3 will not shift relative to each other, improving the stability of the support shaft structure compared to traditional designs. Although the connector 4 is a through-type design, the number of connectors 4 matches the number of connecting holes 303 (e.g., 6 connecting holes correspond to 6 connectors), eliminating the need for multiple sets of connectors 4 for each fixing member 3. During disassembly, simply loosen one nut or pull out the pin to remove the connector 4 and disassemble the component.

[0044] Furthermore, the fastener 3 also has a structural reinforcement 304, which is located on one side of the fastener 302.

[0045] In this embodiment, a structural reinforcement 304 is integrally formed on one side of the fixing part 302 of the fastener 3. The structural reinforcement 304 is preferentially connected to the connection root of the fixing part 302 and the stop part 301 (this is the weakest point where the fixing part is most stressed - after the fixing part 302 is inserted into the bearing fixing groove, the root needs to bear the clamping force of the connector 4 and the radial tension of the cable. The structural reinforcement 304 is radial, extending radially from the axis of the support shaft 2 to the connection root of the fixing part 302 and the stop part 301, thereby providing radial support force to the fixing part 302 and the stop part 301, thereby ensuring the overall structural stability).

[0046] When multiple fixing parts (such as 3-4) are distributed around the circumference of the fixing part 3, the radial reinforcement can cover the root of all fixing parts at the same time, so that the force of each fixing part is evenly transmitted to the axis through the corresponding reinforcing rib, avoiding damage to a certain fixing part due to uneven load overload; especially suitable for the clamping force of the through-type connector 4 - when the connector passes through the double fixing parts 3, the radial reinforcement can simultaneously support the fixing parts 302 on both sides, ensuring that the relative position of the double fixing parts does not shift.

[0047] Furthermore, the structural reinforcement 304 has a mounting hole 305 in the middle, which is coaxial with the axis of the support shaft 2. The mounting hole 305 is used to mount the support shaft 2 on the support frame when winding and unwinding the wire.

[0048] In this embodiment, the mounting hole 305 is located in the middle (axial position) of the radial reinforcement 304 and is strictly coaxial with the axis of the support shaft 2, ensuring that the support shaft 2 rotates around the mounting hole 305 without eccentric wobbling; the support shaft 2 rotates at a uniform speed during cable winding, and the cable is wound neatly; the reinforcement around the mounting hole 305 is locally thickened to avoid the decrease in strength of the axial area caused by the opening; even if the support frame shaft transmits radial load, the reinforcing ring around the hole can distribute the load to the radial ribs and then transmit it to the stop 301, without the risk of deformation of the mounting hole 305.

[0049] Furthermore, the stop 301 is planar.

[0050] In this embodiment, the planar stop 301 is a "thin circular plane" with parallel planes on both sides, ensuring smooth edge contact when the cable is wound, without local protrusions that wear the cable insulation layer. It is formed by stamping the entire iron plane (without the need for complex arc processing), and the precision is easy to control. The inner ring, the fixing part 302, and the radial reinforcing part 304 can be stamped as a whole.

[0051] The large flat area of ​​the planar stop 301 contacts the edge of the cable, providing a large limiting area and more even force distribution at the edge when the cable is wound. It is especially suitable for multi-layered cables, as the outer layer of the cable will not be squeezed by the curvature of the stop, thus avoiding wrinkles or damage to the insulation layer. After disassembly, the planar stop can be stacked stably with the flat side down (when multiple fasteners are stacked, the flat surfaces fit together), resulting in a high stacking height, saving space during transportation and storage, and reducing logistics costs. Furthermore, the side of the stop 301 away from the bearing 1 has a support 306, which is used to prevent the stop 301 from deforming under the pressure of the cable.

[0052] In this embodiment, the support part 306 is only provided on the outer plane of the stop part 301 to avoid interference with the bearing 1 and the fixing part 302, and to resist the radial pressure of the cable to prevent the stop part from bulging outward. When the cable is wound in multiple layers, the outer layer of cable will exert continuous radial outward pressure on the stop part 301. Long-term action can easily cause the planar stop part 301 to bulge outward and deform. The support part 306 provides a reverse support force from the outside of the stop part to avoid cable winding deviation or insulation layer wear due to the deformation of the stop part 301. like Figure 5 As shown, a detachable corrugated cable reel includes a detachable all-iron planar fan-shaped cable reel, with the stop 301 being corrugated.

[0053] In this embodiment, the baffle 301 is corrugated. When multiple layers of heavy-duty cable are wound, the corrugated structure absorbs radial pressure through "wave-shaped elastic deformation". With the help of the radial reinforcement, the deformation of the baffle 301 is small. The peak and valley structure of the corrugation disperses the concentrated pressure of the outer ring of the baffle to the area around the mounting hole along the corrugation, avoiding local overload.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A detachable all-iron planar sector-shaped cable reel, characterized in that, include: A bearing (1), wherein there are several bearings (1) and they are arc-shaped, and the several bearings (1) are arranged in a circular pattern to form a cylindrical support shaft (2), and the bearings (1) have a fixing groove (101). Fixing member (3), there are two fixing members (3), which are respectively disposed on both sides of the support shaft (2). The fixing member (3) has a stop (301) and a fixing part (302). The fixing part (302) is disposed in the fixing groove (101). The stop (301) is annular and is used to limit the cable after the cable is wound around the support shaft (2). Connector (4), the connector (4) is disposed on the fixing member (3), the connector (4) is used to fix the relative position of the bearing (1) and the fixing member (3).

2. The detachable all-iron planar sector-shaped cable reel according to claim 1, characterized in that, The bearing bush (1) has two bent portions (102) that are parallel to the axis of the support shaft (2) and extend from the periphery of the support shaft (2) toward the center. The fixing groove (101) is located at both ends of the bent portions (102).

3. A detachable all-iron planar sector-shaped cable reel according to claim 2, characterized in that, The bearing bush (1) also has a support surface (103), and the bending portion (102) has an operating portion (104) which is parallel to the support surface (103) and is used by an operator to assemble the support shaft (2).

4. A detachable all-iron planar sector-shaped cable reel according to claim 1, characterized in that, The fastener (3) has several connecting holes (303), and the connector (4) passes through two fasteners (3) at the same time to fix the relative positions of the two fasteners (3).

5. A detachable all-iron planar sector-shaped cable reel according to claim 1, characterized in that, The fastener (3) also has a structural reinforcement (304) located on one side of the fastener (302).

6. A detachable all-iron planar sector-shaped cable reel according to claim 5, characterized in that, The structural reinforcement (304) has a mounting hole (305) in the middle. The mounting hole (305) is coaxial with the axis of the support shaft (2). The mounting hole (305) is used to mount the support shaft (2) on the support frame when winding and unwinding.

7. A detachable all-iron planar sector-shaped cable reel according to claim 1, characterized in that, The stop (301) is planar.

8. A detachable all-iron planar sector-shaped cable reel according to claim 1, characterized in that, The stop (301) has a support (306) on the side away from the bearing (1), and the support (306) is used to prevent the stop (301) from deforming under the pressure of the cable.

9. A detachable corrugated cable reel, comprising the detachable all-iron planar sector-shaped cable reel according to any one of claims 1 to 6, characterized in that, The stop (301) is corrugated.

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