A wire reel

Abstract

The present invention belongs to the technical field of winding of linear materials, and provides a wire reel, comprising a left reel unit and a right reel unit which are arranged relatively and detachably connected together, the left reel unit comprising a left reel and a left core plate standing on the right side of the left reel, the left core plate being pivotally connected to the left reel, and a first notch being arranged at the right end thereof; the right reel unit comprising a right reel and a right core plate standing on the left side of the right reel, the right core plate being pivotally connected to the right reel, and a second notch being arranged at the left end thereof; the left core plate and the right core plate being arranged crosswise, the left core plate having a first plug-in portion inserted in the second notch, and the right core plate having a second plug-in portion inserted in the first notch; the right end face of the left core plate being in close contact with or close to the left end face of the right reel, and the left end face of the right core plate being in close contact with or close to the right end face of the left reel. The wire reel is simple to operate and saves time, is easy to disassemble and use, and has a more solid and reliable structure.

Description

Technical Field

[0001] The invention belongs to the technical field of linear material winding, and more specifically, relates to a wire material reel. Background Art

[0002] Wire reels are used to coil linear materials such as cables, zippers, ropes, fabrics, chains, tapes, etc. to facilitate the storage and use of linear materials. They are widely used in various industries. Wire reels usually include two reels and a core. The linear materials can be wound on the core, and the reel is used to prevent the linear materials from slipping. Wire reels also take up a large space when empty, which will increase the cost of storage and transportation. At present, some detachable wire reels have appeared on the market. These wire reels usually adopt a structure that can be separated in half from the middle of the core, which has limited effect on saving space. Some wire reels also adopt a structure that can detach the core from the turntable. Although this effectively reduces the space occupied by the wire reel when it is empty and facilitates storage and transportation, the assembly is more complicated and time-consuming, which brings inconvenience to use. It will also affect the firmness of the wire reel and it is easy to deform and damage during use. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a wire reel which has a firm structure, is convenient for storage and transportation, and is easy for assembly and disassembly for use.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A wire reel is provided, comprising a left reel unit and a right reel unit which are arranged opposite to each other and detachably connected together, wherein:

[0006] The left reel unit comprises a left reel and a left core plate standing on the right side of the left reel, the left core plate is pivotally connected to the left reel so that the left core plate can swing toward the left reel at an angle to a flat state after the left reel unit and the right reel unit are separated, and a first notch is provided at the right end of the left core plate;

[0007] The right reel unit comprises a right reel and a right core plate standing on the left side of the right reel, the right core plate is pivotally connected to the right reel so that the right core plate can swing toward the right reel at an angle to a flat state after the left reel unit and the right reel unit are separated, and a second notch is provided at the left end of the right core plate;

[0008] The left core plate and the right core plate are arranged crosswise through the first notch and the second notch, the left core plate has a first plug-in portion inserted in the second notch and matched with the second notch, and the right core plate has a second plug-in portion inserted in the first notch and matched with the first notch;

[0009] The right end surface of the left core plate is in close contact with or close to the left end surface of the right reel, and the left end surface of the right core plate is in close contact with or close to the right end surface of the left reel.

[0010] Preferably, the left core plate and the right core plate are both flat-plate-shaped, and the left core plate is in close contact with the right end surface of the left reel when it is in a flat state, and the right core plate is in close contact with the left end surface of the right reel when it is in a flat state.

[0011] Preferably, the left core plate and the right core plate are perpendicular to each other.

[0012] Preferably, the left core plate and the right core plate are both rectangular, the first notch is located at the center of the left core plate in the width direction, and the second notch is located at the center of the right core plate in the width direction.

[0013] Preferably, the left end surface of the left core plate is in close contact with the right end surface of the left reel, and the right end surface of the right core plate is in close contact with the left end surface of the right reel.

[0014] Preferably, the left reel unit and the right reel unit have the same shape.

[0015] Preferably, the left core plate is provided with a first connecting block protruding along its thickness direction, the right end of the left core plate is provided with a first abutment block, the right reel is provided with a first connecting platform protruding to the left, the first connecting platform is provided with a first connecting groove on a side facing the left core plate, and the left end face of the right reel is provided with a first abutment groove, the first connecting block is inserted into the first connecting groove, the first abutment block is inserted into the first abutment groove, the left and right spacing between the left end face of the first connecting block and the right end face of the first abutment block is slightly larger than the left and right spacing between the left inner wall of the first connecting groove and the left end face of the right reel, and is less than or equal to the left and right spacing between the left inner wall of the first connecting groove and the right inner wall of the first abutment groove;

[0016] The right core plate is provided with a second connecting block protruding along its thickness direction, and a second abutment block is provided at the left end of the right core plate, and a second connecting platform is provided on the left reel to the right, and a second connecting groove is provided on a side of the second connecting platform facing the right core plate, and a second abutment groove is provided on the right end surface of the left reel, the second connecting block is inserted into the second connecting groove, and the second abutment block is inserted into the second abutment groove, and the left-right spacing between the right end surface of the second connecting block and the left end surface of the second abutment block is slightly larger than the left-right spacing between the right inner wall of the second connecting groove and the left reel, and is less than or equal to the left-right spacing between the right inner wall of the second connecting groove and the left inner wall of the second abutment groove;

[0017] The left reel unit and the right reel unit can rotate relatively around a left-right rotation axis until the first connection block is removed from the first connection slot and the second connection block is removed from the second connection slot to separate the left reel unit from the right reel unit.

[0018] Preferably, a first guide groove is provided on the left end face of the right reel, and the first guide groove is used to guide the first abutment block when the left reel unit and the right reel unit rotate relative to each other, and the left-right distance between the left end face of the first connecting block and the right end face of the first abutment block is slightly larger than the left-right distance between the left inner wall of the first connecting groove and the left inner wall of the first guide groove; a second guide groove is provided on the right end face of the left reel, and the second guide groove is used to guide the second abutment block when the left reel unit and the right reel unit rotate relative to each other, and the left-right distance between the right end face of the second connecting block and the left end face of the second abutment block is slightly larger than the left-right distance between the right inner wall of the second connecting groove and the right inner wall of the second guide groove.

[0019] Optionally, the left core plate is detachably connected to the right reel via at least one first screw, and the right core plate is detachably connected to the left reel via at least one second screw.

[0020] Optionally, the left core plate is detachably connected to the right reel via at least one first buckle, and the right core plate is detachably connected to the left reel via at least one second buckle.

[0021] The wire reel provided by the present invention has the beneficial effect that when the left reel unit and the right reel unit of the wire reel are separated, the left core plate can be swung to a flat state relative to the left reel, and the right core plate can be swung to a flat state relative to the right reel, thereby effectively reducing the space occupied by the wire reel when it is empty, and facilitating storage and transportation; when it is needed, it is only necessary to rotate the left core plate and the right core plate to a vertical state, cross-plug the left core plate and the right core plate through the first notch and the second notch, and then connect the left reel unit and the right reel unit. The operation is simple and time-saving, and it is easy to disassemble and use. In addition, in the wire reel, the matching structure of the first plug-in portion and the second recess combined with the close or proximal structure of the right core plate and the left reel can limit the rotation of the left core plate relative to the left reel, and the matching structure of the second plug-in portion and the first recess combined with the close or proximal structure of the left core plate and the right reel can limit the rotation of the right core plate relative to the right reel, thereby effectively improving the structural strength of the wire reel, making it less likely to be deformed or damaged during use, having a stronger load-bearing capacity, and a more solid and reliable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is an overall structural diagram of the first embodiment of the present invention;

[0024] Figure 2 This is a structural diagram of the first embodiment of the present invention after being disassembled;

[0025] Figure 3 It is a cross-sectional structural schematic diagram of a first embodiment of the present invention;

[0026] Figure 4 This is a structural diagram of the second embodiment of the present invention after being disassembled.

[0027] Among them, the reference numerals in the figure are:

[0028] Left reel unit 10; left reel 11; second connecting platform 111; second abutting groove 112; second guide groove 113; left core plate 12; first notch 121; first plug-in portion 122; first connecting block 123; first abutting block 124; first screw 13;

[0029] Right reel unit 20; right reel 21; first connecting platform 211; first connecting groove 212; first abutting groove 213; first guiding groove 214; right core plate 22; second notch 221; second plug-in portion 222; second connecting block 223; second abutting block 224; second screw 23;

[0030] Hinge 31; Wire hole 32. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] Reference Figures 1 to 3The first embodiment of the present invention provides a wire reel, comprising a left reel unit 10 and a right reel unit 20 which are arranged opposite to each other and detachably connected together, wherein the left reel unit 10 comprises a left reel 11 and a left core plate 12 which stands on the right side of the left reel 11, the left core plate 12 is pivotally connected to the left reel 11 so that the left core plate 12 can swing toward the left reel 11 at an angle to a flat state after the left reel unit 10 and the right reel unit 20 are separated, and a first notch 121 is provided at the right end of the left core plate 12; the right reel unit 20 comprises a right reel 21 and a right core plate 22 which stands on the left side of the right reel 21, the right core plate 22 is pivotally connected to the right reel 21 so that the right core plate 22 After the left reel unit 10 and the right reel unit 20 are separated, they can be swung toward the right reel 21 at an angle to a flat state, and a second recess 221 is provided at the left end of the right core plate 22; the left core plate 12 and the right core plate 22 are cross-arranged through the first recess 121 and the second recess 221, and the left core plate 12 has a first plug-in portion 122 inserted in the second recess 221 and matched with the second recess 221, and the right core plate 22 has a second plug-in portion 222 inserted in the first recess 121 and matched with the first recess 121; the right end face of the left core plate 12 is tightly or close to the left end face of the right reel 21, and the left end face of the right core plate 22 is tightly or close to the right end face of the left reel 11. When the left reel unit 10 and the right reel unit 20 of the wire reel are separated, the left core plate 12 can be swung to a flat state relative to the left reel 11, and the right core plate 22 can be swung to a flat state relative to the right reel 21, thereby effectively reducing the space occupied by the wire reel when empty, and facilitating storage and transportation; when needed, it is only necessary to rotate the left core plate 12 and the right core plate 22 to a vertical state, cross-plug the left core plate 12 and the right core plate 22 through the first notch 121 and the second notch 221, and then connect the left reel unit 10 and the right reel unit 20. The operation is simple, time-saving, and convenient Easy to assemble and disassemble for use; in addition, in the present wire reel, the matching structure of the first plug-in portion 122 and the second recess 221 combined with the close or proximal structure of the right core plate 22 and the left reel 11 can limit the rotation of the left core plate 12 relative to the left reel 11, and the matching structure of the second plug-in portion 222 and the first recess 121 combined with the close or proximal structure of the left core plate 12 and the right reel 21 can limit the rotation of the right core plate 22 relative to the right reel 21, thereby effectively improving the structural strength of the present wire reel, making it less likely to be deformed and damaged during use, having a stronger load-bearing capacity, and a more solid and reliable structure.

[0033] As a preferred embodiment of the present invention, it may also have the following additional technical features:

[0034] In the present embodiment, the left core plate 12 and the right core plate 22 are both in the shape of a flat plate. When the left core plate 12 is in a flat state, it is close to the right end surface of the left reel 11. When the right core plate 22 is in a flat state, it is close to the left end surface of the right reel 21. This can further reduce the space occupied by the left reel unit 10 and the right reel unit 20 after folding, and facilitate storage and transportation. In other embodiments, the left core plate 12 and the right core plate 22 can also be in any other required shape such as an arc surface shape, a folded plate shape, etc. When the left core plate 12 and the right core plate 22 are in a flat state, they can also be spaced a certain distance from the left reel 11 and the right reel 21 or tilted at an angle, respectively. This is not limited to this. The flat state is relative to the upright state. Those skilled in the art can clearly understand its meaning through the description in the present invention combined with common sense in the field. The degree of flatness affects the degree of space saving after the left reel unit 10 and the right reel unit 20 are folded. Those skilled in the art can adjust it as needed. In the present embodiment, the left reel 11 and the right reel 21 are also in the shape of a flat plate, so that the left reel unit 10 and the right reel unit 20 can be folded to form a flat plate with a small thickness, which can be easily stacked, and further facilitates storage and transportation. Of course, in other embodiments, the shapes of the left reel 11 and the right reel 21 can also be selected as other suitable shapes according to needs, and are not limited to this. The name "reel" is just a common name for this part of the wire reel by technicians in this field, and it is not a limitation on the shape of the left reel 11 and the right reel 21.

[0035] In this embodiment, the left core plate 12 and the right core plate 22 are perpendicular to each other, so that the shape of the wire reel can be more regular, convenient for processing, assembly and use. In other embodiments, the left core plate 12 and the right core plate 22 can also be relatively inclined, and are not limited to this.

[0036] In this embodiment, the left core plate 12 and the right core plate 22 are both rectangular, the first notch 121 is located at the center of the width direction of the left core plate 12, and the second notch 221 is located at the center of the width direction of the right core plate 22, so that the winding core formed by the left core plate 12 and the right core plate 22 can be more uniform, which is convenient for the winding operation of the linear material, can improve the uniformity of the force of the linear material after winding, and is also convenient for processing and assembly. In other embodiments, the shapes of the left core plate 12 and the right core plate 22 can also be flexibly adjusted according to the needs of the wire for the shape of the winding core, for example, other commonly used shapes such as arc plates can be used, but are not limited to this.

[0037] In this embodiment, the portion of the left core plate 12 located on the left side of the first notch 121 is directly used as the first plug-in portion 122, and the portion of the right core plate 22 located on the right side of the second notch 221 is used as the second plug-in portion 222, which has a simple structure and is easy to manufacture and use. In other embodiments, other structures such as convex strips can also be added to the left core plate 12 and the right core plate 22 to serve as the first plug-in portion 122 and the second plug-in portion 222, but are not limited thereto.

[0038] The left end face of the left core plate 12 is in close contact with the right end face of the left reel 11, and the right end face of the right core plate 22 is in close contact with the left end face of the right reel 21. In this way, the rotation of the left core plate 12 and the right core plate 22 in one direction can be limited, so that the left core plate 12 and the right core plate 22 can be limited to expand to a certain rotation angle range, which is convenient for positioning the left core plate 12 and the right core plate 22 during the expansion process, and also helps to improve the structural strength and load-bearing capacity of the wire reel. Accordingly, the pivot axes of the left core plate 12 and the right core plate 22 are both arranged on the side facing their flat position, so that the left core plate 12 and the right core plate 22 can only be rotated and folded toward the flat position. In other embodiments, the left end surface of the left core plate 12 may be spaced apart from the right end surface of the left reel 11 by a distance, and the right end surface of the right core plate 22 may be spaced apart from the left end surface of the right reel 21 by a distance, or the left end of the left core plate 12 and the right end of the right core plate 22 may be made into an arc shape, so that both the left core plate 12 and the right core plate 22 can swing to both sides. In this embodiment, the left core plate 12 and the right core plate 22 both use hinges 31 to be pivotally connected to the left reel 11 and the right reel 21, respectively, and the structure is simple and reliable, and is easy to process and assemble. In other embodiments, the left core plate 12 and the right core plate 22 may also use other common structures such as hinges to be pivotally connected to the left reel 11 and the right reel 21, but are not limited thereto.

[0039] In this embodiment, the left reel unit 10 and the right reel unit 20 have the same shape, so any two reel units can be assembled into the wire reel, and there is no need for precise pairing, which is convenient for use, can avoid the situation where the other paired reel unit has to be abandoned due to the loss or damage of one reel unit, and is also convenient for production and processing, which helps to reduce production and use costs. In other embodiments, the left reel unit 10 and the right reel unit 20 can also adopt different shapes according to actual needs.

[0040] In this embodiment, a first connecting block 123 is protruded from the left core plate 12 along its thickness direction, a first abutting block 124 is arranged at the right end of the left core plate 12, a first connecting platform 211 is protruded to the left on the right reel 21, a first connecting groove 212 is arranged on the first connecting platform 211 facing the left core plate 12, a first abutting groove 213 is arranged on the left end face of the right reel 21, the first connecting block 123 is inserted into the first connecting groove 212, the first abutting block 124 is inserted into the first abutting groove 213, the left and right distance between the left end face of the first connecting block 123 and the right end face of the first abutting block 124 is slightly larger than the left and right distance between the left inner wall of the first connecting groove 212 and the left end face of the right reel 21, and is less than or equal to the left and right distance between the left inner wall of the first connecting groove 212 and the right inner wall of the first abutting groove 213; a second connecting block 223 is protruded from the right core plate 22 along its thickness direction, a first connecting platform 211 is arranged at the left end of the right core plate 22 There is a second abutment block 224, a second connecting platform 111 protrudes to the right on the left reel 11, a second connecting groove is provided on the second connecting platform 111 facing the right core plate 22, a second abutment groove 112 is provided on the right end face of the left reel 11, a second connecting block 223 is inserted in the second connecting groove, and a second abutment block 224 is inserted in the second abutment groove 112. The left and right distances between the right end face of the second connecting block 223 and the left end face of the second abutment block 224 are slightly larger than the left and right distances between the right inner wall of the second connecting groove and the left reel 11, and are less than or equal to the left and right distances between the right inner wall of the second connecting groove and the left inner wall of the second abutment groove 112; the left reel unit 10 and the right reel unit 20 can rotate relative to each other around a rotating axis in the left and right directions until the first connecting block 123 is moved out of the first connecting groove 212 and the second connecting block 223 is moved out of the second connecting groove to separate the left reel unit 10 and the right reel unit 20.In the assembled state, since the left and right distance between the left end face of the first connecting block 123 and the right end face of the first abutting block 124 is less than or equal to the left and right distance between the left inner wall of the first connecting groove 212 and the right inner wall of the first abutting groove 213, the left and right distance between the right end face of the second connecting block 223 and the left end face of the second abutting block 224 is less than or equal to the left and right distance between the right inner wall of the second connecting groove and the left inner wall of the second abutting groove 112, there will be no excessive interaction force between the left reel unit 10 and the right reel unit 20, deformation and fatigue are not likely to occur, which helps to maintain the structural performance of the wire reel; and since the left and right distance between the left end face of the first connecting block 123 and the right end face of the first abutting block 124 is slightly larger than the left and right distance between the left inner wall of the first connecting groove 212 and the left end face of the right reel 21, the second connecting block 223 The left-right spacing between the right end face and the left end face of the second abutment block 224 is slightly larger than the left-right spacing between the right inner wall of the second connecting groove and the left reel 11, which can limit the relative rotation of the left reel unit 10 and the right reel unit 20 and prevent the wire reel from separating and disintegrating by itself; when it is necessary to disassemble the wire reel, it is only necessary to apply force to twist the left reel unit 10 and the right reel unit 20, and after the first abutment block 124 is moved out of the first abutment groove 213 and the second abutment block 224 is moved out of the second abutment groove 112, the related connecting structure of the left reel unit 10 and the right reel unit 20 is squeezed and deformed, thereby moving the first connecting block 123 out of the first connecting groove 212 and the second connecting block 223 out of the second connecting groove, and then separating the left reel unit 10 and the right reel unit 20 to the left and right, and the reverse operation is performed during assembly. The above structure realizes the detachable connection between the left reel unit 10 and the right reel unit 20, and the wire reel can be manually and quickly disassembled without the aid of tools. The structure is simple and reliable, and it is convenient to disassemble and use. The first abutment block 124 and the second abutment block 224 are used to abut the right reel 21 and the left reel 11 respectively, which can reduce the contact surface, thereby reducing the friction force received by the left reel unit 10 and the right reel unit 20 during the relative rotation and disassembly process, and facilitating the disassembly and assembly operation. The range referred to by the description of "slightly greater than" in the present invention refers to the range in which the size difference can be offset by the deformation caused by the force on the relevant connection structure on the left reel unit 10 and the right reel unit 20. The specific range size varies with the material, size and other factors of the relevant connection structure on the left reel unit 10 and the right reel unit 20. After the relevant structure is determined, the range size that meets the condition can be obtained through a limited number of experiments. It is not a constant value. Those skilled in the art can clearly understand its meaning based on the description in the present invention.

[0041] In this embodiment, the left end face of the right reel 21 is provided with a first guide groove 214, which is used to guide the first abutment block 124 when the left reel unit 10 and the right reel unit 20 rotate relative to each other, and the left-right spacing between the left end face of the first connection block 123 and the right end face of the first abutment block 124 is slightly larger than the left-right spacing between the left inner wall of the first connection groove 212 and the left inner wall of the first guide groove 214; the right end face of the left reel 11 is provided with a second guide groove 113, which is used to guide the second abutment block 224 when the left reel unit 10 and the right reel unit 20 rotate relative to each other, and the left-right spacing between the right end face of the second connection block 223 and the left end face of the second abutment block 224 is slightly larger than the left-right spacing between the right inner wall of the second connection groove and the right inner wall of the second guide groove 113. In this way, the disassembly and assembly operation of the wire reel can be facilitated, and it is easy to use.

[0042] In this embodiment, wire holes 32 are provided on the left core plate 12 and the right core plate 22 to facilitate fixing the ends of the wires.

[0043] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0044] Reference Figure 4 The second embodiment of the present invention is different from the first embodiment in that, in the present embodiment, the left core plate 12 is detachably connected to the right reel 21 by at least one first screw 13, and the right core plate 22 is detachably connected to the left reel 11 by at least one second screw 23, thereby realizing the detachable connection between the left reel unit 10 and the right reel unit 20, and the structure is simple and reliable, and convenient for processing and use. The first screw 13 and the second screw 23 can adopt a manually operable screw structure such as a butterfly screw, which is further convenient for use.

[0045] In the third embodiment of the present invention, the left core plate 12 can also be detachably connected to the right reel 21 through at least one first buckle, and the right core plate 22 can be detachably connected to the left reel 11 through at least one second buckle. The buckle structure is widely used, and its structure and principle are well known to those skilled in the art. It has a simple structure, is easy to operate, and is easy to use. At the same time, it can press the left reel unit 10 and the right reel unit 20 together to improve the structural strength of the wire reel.

[0046] In addition to the above embodiments, the detachable connection structure between the left reel unit 10 and the right reel unit 20 of the wire reel may also be other commonly used detachable connection structures such as latches and buckles, but is not limited thereto.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire reel, characterized in that: It comprises a left reel unit (10) and a right reel unit (20) which are arranged opposite to each other and are detachably connected together, wherein: The left reel unit (10) comprises a left reel (11) and a left core plate (12) standing on the right side of the left reel (11); the left core plate (12) is pivotally connected to the left reel (11) so that the left core plate (12) can swing toward the left reel (11) at an angle to a flat state after the left reel unit (10) and the right reel unit (20) are separated; and a first notch (121) is provided at the right end of the left core plate (12); The right reel unit (20) comprises a right reel (21) and a right core plate (22) standing on the left side of the right reel (21); the right core plate (22) is pivotally connected to the right reel (21) so that the right core plate (22) can swing toward the right reel (21) at an angle to a flat state after the left reel unit (10) and the right reel unit (20) are separated; a second notch (221) is provided at the left end of the right core plate (22); The left core plate (12) and the right core plate (22) are cross-arranged through the first notch (121) and the second notch (221); the left core plate (12) has a first plug-in portion (122) inserted into the second notch (221) and matched with the second notch (221); the right core plate (22) has a second plug-in portion (222) inserted into the first notch (121) and matched with the width of the first notch (121); The right end face of the left core plate (12) is in close contact with or close to the left end face of the right reel (21), the left end face of the right core plate (22) is in close contact with or close to the right end face of the left reel (11), the left end face of the left core plate (12) is in close contact with the right end face of the left reel (11), the right end face of the right core plate (22) is in close contact with the left end face of the right reel (21), and the left reel unit (10) and the right reel unit (20) have the same shape.

2. A wire reel according to claim 1, characterized in that: The left core plate (12) and the right core plate (22) are both flat-plate shaped. When the left core plate (12) is in a flat state, it is in close contact with the right end surface of the left reel (11), and when the right core plate (22) is in a flat state, it is in close contact with the left end surface of the right reel (21).

3. A wire reel according to claim 2, characterized in that: The left core plate (12) and the right core plate (22) are perpendicular to each other.

4. A wire reel according to claim 3, characterized in that: The left core plate (12) and the right core plate (22) are both rectangular, the first notch (121) is located at the center of the left core plate (12) in the width direction, and the second notch (221) is located at the center of the right core plate (22) in the width direction.

5. A wire reel according to any one of claims 1 to 4, characterized in that: A first connecting block (123) is protruded from the left core plate (12) along its thickness direction, a first abutting block (124) is provided at the right end of the left core plate (12), a first connecting platform (211) is protruded to the left on the right winding disk (21), a first connecting groove (212) is provided on the first connecting platform (211) on a side facing the left core plate (12), a first abutting groove (213) is provided on the left end surface of the right winding disk (21), and the first connecting block (123) is inserted into the right winding disk (21). The first abutting block (124) is arranged in the first connecting groove (212), and is inserted in the first abutting groove (213). The left-right distance between the left end face of the first connecting block (123) and the right end face of the first abutting block (124) is slightly larger than the left-right distance between the left inner wall of the first connecting groove (212) and the left end face of the right reel (21), and is smaller than or equal to the left-right distance between the left inner wall of the first connecting groove (212) and the right inner wall of the first abutting groove (213); A second connecting block (223) is protruded from the right core plate (22) along its thickness direction, a second abutting block (224) is arranged at the left end of the right core plate (22), a second connecting platform (111) is protruded to the right on the left reel (11), a second connecting groove is arranged on the second connecting platform (111) on a side facing the right core plate (22), a second abutting groove (112) is arranged on the right end surface of the left reel (11), the second connecting block (223) is inserted into the second connecting groove, the second abutting block (224) is inserted into the second abutting groove (112), the left-right spacing between the right end surface of the second connecting block (223) and the left end surface of the second abutting block (224) is slightly larger than the left-right spacing between the right inner wall of the second connecting groove and the left reel (11), and is smaller than or equal to the left-right spacing between the right inner wall of the second connecting groove and the left inner wall of the second abutting groove (112); The left reel unit (10) and the right reel unit (20) can rotate relative to each other around a rotation axis in the left-right direction until the first connection block (123) is moved out of the first connection groove (212) and the second connection block (223) is moved out of the second connection groove, so as to separate the left reel unit (10) and the right reel unit (20).

6. A wire reel according to claim 5, characterized in that: The left end surface of the right reel (21) is provided with a first guide groove (214), the first guide groove (214) being used to guide the first abutment block (124) when the left reel unit (10) and the right reel unit (20) rotate relative to each other, the left and right distance between the left end surface of the first connection block (123) and the right end surface of the first abutment block (124) being slightly larger than the left inner wall of the first connection groove (212) and the left inner wall of the first guide groove (214). The right end surface of the left reel (11) is provided with a second guide groove (113), and the second guide groove (113) is used to guide the second abutment block (224) when the left reel unit (10) and the right reel unit (20) rotate relative to each other, and the left-right distance between the right end surface of the second connecting block (223) and the left end surface of the second abutment block (224) is slightly larger than the left-right distance between the right inner wall of the second connecting groove and the right inner wall of the second guide groove (113).

7. A wire reel according to any one of claims 1 to 4, characterized in that: The left core plate (12) is detachably connected to the right reel (21) via at least one first screw (13), and the right core plate (22) is detachably connected to the left reel (11) via at least one second screw (23).

8. A wire reel according to any one of claims 1 to 4, characterized in that: The left core plate (12) is detachably connected to the right reel (21) via at least one first buckle, and the right core plate (22) is detachably connected to the left reel (11) via at least one second buckle.

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