Take-up box

Abstract

The utility model relates to the technical field of winding, in particular to a take-up box which comprises a shell, a take-up reel and a take-up and pay-off structure. The shell comprises an upper shell and a lower shell, the take-up reel is of a cylindrical structure, double annular grooves which are parallel to each other and concentric with the cylindrical structure are formed in the periphery of the cylindrical structure, an annular partition plate concentric with the cylindrical structure is arranged between the double annular grooves, and the take-up reel is used for guiding and winding double wires. The take-up and pay-off structure comprises a coil spring, and the take-up reel can rotate in the forward direction and the reverse direction through stretching and resetting of the coil spring so that synchronous pay-off and synchronous take-up of the double wires can be achieved. A take-up reel of the take-up box is of a cylindrical structure, and double annular grooves which are parallel to each other and concentric with the cylindrical structure are formed in the periphery of the take-up reel. By means of the design, synchronous rotating take-up and pay-off of the two wires are facilitated, in the take-up and pay-off process, the two wires are wound around the different annular grooves respectively, and the possibility that the two wires intersect and are wound is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a winding technology field especially relates to a take-up box. BACKGROUND

[0002] The take-up box is a device for arranging and winding and unwinding the electric wire, and is widely used in various small appliances and tools. Its main function is to neatly wind and unwind the electric wire to prevent entanglement and damage. Generally, a specific channel is arranged in the take-up box to facilitate the quick winding and unwinding of the electric wire guided through the channel. In actual application, the take-up box is not only used for winding and unwinding single wire, but also needs to wind and unwind double wires sometimes. The single wire winding and unwinding is commonly seen in some simple appliance connections, such as power supply wires or signal wires, which usually only need one wire for connection. The double wire winding and unwinding is often used in devices that need to transmit power and signals simultaneously, such as double-channel speakers and earphones. However, the existing take-up box adopts the same channel design for winding and unwinding single wire and double wire, which makes the electric wire move in the same channel. Although this design can successfully wind and unwind single wire, when winding and unwinding double wire, the two wires are prone to entangle and even knot during the winding and unwinding process. This not only makes it very difficult to wind back and unwind the double wire, but also increases the risk of double wire damage and brings additional burden to the user to untangle the double wire, resulting in poor user experience. SUMMARY

[0003] In view of this, the utility model provides a take-up box, which aims to improve the problem that the take-up box on the market is prone to double wire entanglement and knotting when winding and unwinding double wire.

[0004] The utility model provides a take-up box, which comprises a shell, a take-up reel and a winding and unwinding structure, wherein,

[0005] The shell comprises an upper shell and a lower shell, which enclose an inner cavity for accommodating the take-up reel, the winding and unwinding structure and double wire in a curled state. The inner wall of the inner cavity is provided with a cylinder, and the shell is provided with a wire inlet and a wire outlet.

[0006] The take-up reel is a cylindrical structure, and double annular grooves parallel to each other and concentric with the cylindrical structure are arranged on the periphery of the cylindrical structure. An annular partition concentric with the cylindrical structure is arranged between the double annular grooves. The cylindrical structure is provided with an inlet hole and an outlet hole. A hollow straight pipe is arranged at the center position of the cylindrical structure, and the cylindrical body extends into the hollow straight pipe. The take-up reel is used to guide the winding of the double wires. One of the double wires sequentially passes through the inlet hole and the inlet hole, is wound on one of the double annular grooves, and then sequentially passes through the outlet hole and the outlet hole and extends out of the take-up box. The other of the double wires sequentially passes through the inlet hole and the inlet hole, is wound on the other of the double annular grooves, and then sequentially passes through the outlet hole and the outlet hole and extends out of the take-up box. The take-up reel is also provided with a mounting position for mounting the winding and unwinding structure.

[0007] The winding and unwinding structure includes a coil spring. The coil spring is in a curled state around the cylindrical body and is arranged in the mounting position. One end of the coil spring is connected to the cylindrical body, and the other end of the coil spring is connected to the take-up reel. Through the stretching and resetting of the coil spring, the take-up reel can be rotated forward and backward to realize the synchronous unwinding and synchronous winding of the double wires.

[0008] In a possible implementation manner, two screw mounting holes are arranged on the outer wall of the shell in a relative manner.

[0009] In a possible implementation manner, a strip-shaped through slot for embedding one end of the coil spring is arranged radially on the top of the cylindrical body. The take-up reel is provided with a first stand for fixing the other end of the coil spring. The first stand is arranged inside the mounting position and is arranged separately from the inner wall of the mounting position.

[0010] In a possible implementation manner, the take-up reel is provided with a second stand for limiting the double wires. The second stand is arranged inside the mounting position and is arranged separately from the inner wall of the mounting position. After the double wires pass through the inlet hole, they vertically pass through the gap between the second stand and the inner wall of the mounting position, and then extend out of the outlet hole.

[0011] In a possible implementation manner, the take-up box further includes a positioning structure. The positioning structure includes a first column, a second column, a third column, and a first positioning hole.

[0012] The outer edge of one of the upper shell and the lower shell is provided with the first column, the top of the first column is provided with the second column, the width of the second column is smaller than that of the first column, the outer edge of the other of the upper shell and the lower shell is provided with the third column corresponding to the position of the first column, the top of the third column is provided with the first positioning hole corresponding to the position of the second column, and the width of the third column is equal to that of the first column; when the second column is inserted into the first positioning hole, the second column and the first positioning hole are in interference fit, and the first column and the third column are aligned.

[0013] In a possible implementation, the take-up box includes three positioning structures, and an included angle of 120 degrees is formed between each two positioning structures.

[0014] In a possible implementation, the upper shell and the lower shell are circular structures and are concentrically arranged, the inner cavity is a cylindrical cavity, the take-up disc is concentric with the shell body, the cylindrical body is located at the center of the lower shell, the lower shell is provided with the wire inlet, and the upper shell is provided with the wire outlet.

[0015] In a possible implementation, the take-up box further includes a screw, a screw hole is arranged at the center of the top of the cylindrical body, the upper shell is provided with a mounting through hole, and the screw passes through the mounting through hole and the screw hole in sequence, so that the upper shell and the lower shell are screw-connected.

[0016] In a possible implementation, the take-up box further includes a state switching structure, the state switching structure is arranged in the inner cavity and located above the take-up disc, and the state switching structure includes a limiting groove, a ball and a track disc.

[0017] The limiting groove is a strip-shaped groove and is arranged on the inner wall of the upper shell.

[0018] The ball is arranged between the track of the track disc and the strip-shaped groove, and the ball can roll between the track and the strip-shaped groove.

[0019] The track disc is provided with a circular through hole at the center position, which is concentric with the take-up disc, the cylinder extends into the circular through hole, and the take-up disc is further provided with an assembly position for assembling the track disc, when the track disc is assembled in the assembly position, the track disc can rotate synchronously with the take-up disc; the track disc is provided with two outer arc tracks with the same shape, two inner arc tracks with the same shape, two switching tracks with the same shape and two locking tracks with the same shape, the depth of the tail end of the locking track is greater than that of the other tracks, one of the outer arc tracks, one of the inner arc tracks, one of the switching tracks and one of the locking tracks together form a first track, the other of the outer arc tracks, the other of the inner arc tracks, the other of the switching tracks and the other of the locking tracks together form a second track, the first track and the second track have the same shape and are distributed in the circumferential direction of the circular through hole;

[0020] When the ball rolls in one direction of the strip-shaped groove, the ball can circulate and roll in the inner arc track;

[0021] When the ball rolls in the other direction of the strip-shaped groove, the ball rolls into the outer arc track through the switching track and can circulate and roll in the outer arc track;

[0022] When the ball switches the rolling direction in the outer arc track and continues to roll in the outer arc track for a distance, the ball rolls into the tail end of the locking track and is limited by the tail end;

[0023] When the ball rolls out of the tail end and rolls in the locking track for a distance after switching the rolling direction, the ball re-rolls into the inner arc track.

[0024] In a possible implementation manner, the outer wall of the lower shell is further provided with an arc-shaped clamping groove for vertically clamping the double wires, when the double wires are vertically clamped in the arc-shaped clamping groove, the double wires and the arc-shaped clamping groove are in interference fit.

[0025] Compared with the prior art, the reel box has the beneficial effects that: the reel box comprises a shell, a reel disc and a winding and unwinding structure; the shell comprises an upper shell and a lower shell, the upper shell and the lower shell enclose an inner cavity for accommodating the reel disc, the winding and unwinding structure and double wires in a curled state, the reel disc is in a cylindrical structure, the periphery of the cylindrical structure is provided with double annular grooves which are parallel to each other and concentric with the cylindrical structure, an annular partition plate which is concentric with the cylindrical structure is arranged between the double annular grooves, the reel disc is used for guiding the winding of the double wires, the double wires pass through the wire inlet and the wire through hole in sequence and are wound in different annular grooves in the double annular grooves respectively, and then pass through the wire through hole and the wire outlet in sequence and extend out of the reel box, the winding and unwinding structure comprises a coil spring, through the stretching and resetting of the coil spring, the reel disc can rotate forward and reversely to realize the synchronous unwinding and winding of the double wires. The reel disc of the reel box adopts the cylindrical structure, which facilitates the synchronous rotation and winding of the double wires. The periphery of the cylindrical structure is provided with the double annular grooves which are parallel to each other and concentric with the cylindrical structure. In the winding and unwinding process, the double wires are wound in different annular grooves respectively, which effectively avoids the possibility of mutual crossing and winding of the two wires. Each wire has its independent space, which can significantly reduce the risk of knotting. In addition, the annular partition plate arranged between the double annular grooves further enhances the separation effect of the double wires. The annular partition plate ensures that the double wires do not interfere with each other during synchronous winding and unwinding, maintains the smoothness and convenience of the synchronous winding and unwinding process of the double wires, and also provides certain protection for the double wires. It can be seen that, through reasonable structure design and function configuration, the reel box effectively solves the problem that the double wires are easily wound and knotted in the same groove during synchronous winding and unwinding, significantly improves the user experience, and reduces the risk of damage to the double wires. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A structure schematic view of the reel box provided by the utility model embodiment is shown in the figure.

[0027] Figure 2 A structure explosion view of the first angle of the reel box provided by the utility model embodiment is shown in the figure.

[0028] Figure 3 A structure explosion view of the second angle of the reel box provided by the utility model embodiment is shown in the figure.

[0029] Figure 4 A structure schematic view of the upper shell of the reel box provided by the utility model embodiment is shown in the figure.

[0030] Figure 5 A structure schematic view of the lower shell of the reel box provided by the utility model embodiment is shown in the figure.

[0031] Figure 6A first angle structure diagram of the take-up reel of the take-up box is provided in the embodiment of the utility model.

[0032] Figure 7 A second angle structure diagram of the take-up reel of the take-up box is provided in the embodiment of the utility model.

[0033] Figure 8 A structure diagram of the track disc of the take-up box is provided in the embodiment of the utility model.

[0034] The sign of the reference numerals is as follows:

[0035] 11, upper shell; 12, lower shell; 13, cylinder; 14, wire inlet; 15, wire outlet; 16, screw mounting hole; 131, strip-shaped through slot; 132, screw hole position; 121, first column body; 122, second column body; 111, third column body; 112, first positioning hole; 113, mounting through hole; 114, strip-shaped recess; 123, arc-shaped clamping groove;

[0036] 20, take-up reel; 211, one of double annular grooves; 212, another of double annular grooves; 213, annular partition plate; 22, wire inlet through hole; 23, wire outlet through hole; 24, hollow straight pipe; 25, first vertical column; 26, second vertical column;

[0037] 30, double wire; 41, coil spring; 42, ball; 43, track disc; 431, circular through hole; 4321, one of outer arc tracks; 4331, one of inner arc tracks; 4341, one of switching tracks; 4351, one of locking tracks; 4322, another of outer arc tracks; 4332, another of inner arc tracks; 4342, another of switching tracks; 4352, another of locking tracks; 436, first track; 437, second track. DETAILED DESCRIPTION

[0038] The scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some of the embodiments in the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0039] It should be noted that if the directionality indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of the utility model, the directionality indication is only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directionality indication also changes accordingly.

[0040] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0041] Please refer to Figure 1 As shown in the figure, it is the structure schematic diagram of the take-up box provided by the embodiments of the present application.

[0042] The utility model provides a take-up box, include: casing, take -up reel 20 and deposit structure, wherein,

[0043] The casing includes upper shell 11 and lower shell 12, the upper shell 11 and the lower shell 12 are enclosed to form an inner cavity for accommodating the take -up reel 20, the deposit structure and the double -line 30 in the state of curling, the inner wall of the inner cavity is provided with cylinder 13, the casing is provided with wire inlet 14 and wire outlet 15;

[0044] The take -up reel 20 is cylindrical structure, the periphery of the cylindrical structure is provided with double -ring groove parallel to each other and concentric with the cylindrical structure, the double -ring groove is provided with annular partition 213 concentric with the cylindrical structure, the cylindrical structure is provided with wire inlet through -hole 22 and wire outlet through -hole 23, the center position of the cylindrical structure is provided with hollow straight pipe 24, the cylinder 13 extends into the hollow straight pipe 24;The take -up reel 20 is used to guide to wind the double -line 30, one of the double -line 30 passes through wire inlet 14 and wire inlet through -hole 22 in turn and is wound in one of the double -ring groove, then passes through wire outlet through -hole 23 and wire outlet 15 in turn and extends out of the take -up box, the other of the double -line 30 passes through wire inlet 14 and wire inlet through -hole 22 in turn and is wound in the other of the double -ring groove, then passes through wire outlet through -hole 23 and wire outlet 15 in turn and extends out of the take -up box;The take -up reel 20 is also provided with mounting position for installing the deposit structure;

[0045] The deposit structure includes coil spring 41, the coil spring 41 is in the state of curling around the cylinder 13 and is arranged in the mounting position, one end of the coil spring 41 is connected with the cylinder 13, the other end of the coil spring 41 is connected with the take -up reel 20, through the stretching and reset of the coil spring 41, the take -up reel 20 can rotate forward and reverse, to realize the synchronous release and synchronous recovery of the double -line 30.

[0046] Specifically, the design of the double-ring grooves can effectively separate the double wires 30 wound thereon, one of the double wires 30 being wound on one of the double-ring grooves 211 and the other of the double wires 30 being wound on the other of the double-ring grooves 212, so as to avoid the mutual winding of the double wires 30. Meanwhile, the annular partition plates 213 arranged between the double-ring grooves can further enhance the separation effect of the double wires 30 and ensure that the double wires 30 remain neat and orderly during the synchronous winding and unwinding process. The greater the depth of the double-ring grooves and the width of the annular partition plates 213, the more the double wires 30 that can be wound, thereby allowing more double wires 30 to run therein. However, such depth and width are limited by the size of the inner cavity of the shell and cannot be increased indefinitely. In addition, the double wires 30 can be two completely separated wires or two partially connected wires. In the latter case, the two wires of the double wires 30 are connected together at one end and separated at the other end and connected to two different components, respectively. At this time, the double wires 30 connected together are in a curled state and located below the winding disc 20, and the double wires 30 in a separated state are in a curled state and located in the double-ring grooves of the winding disc 20. The annular partition plates 213 between the double-ring grooves not only enhance the separation effect of the double wires 30 but also serve to cut the double wires 30 connected together, thereby further extending the effective length of the double wires 30 and enabling them to be more flexible. It can be seen that the winding disc 20 optimizes the arrangement of the double wires 30 through reasonable structural layout and can meet various different use requirements. Of course, in actual application, the number of annular grooves and annular partition plates 213 can be increased accordingly according to the number of wires that need to be separated, as long as the effect of stably and effectively separating multiple wires is ultimately achieved.

[0047] Please refer to Figure 2 and Figure 3 , which are respectively structural explosion diagrams of a first angle and a second angle of the winding box provided by the embodiment of the present application.

[0048] Specifically, the entry hole 22 and the exit hole 23 arranged on the winding disc 20 can allow the double wires 30 to enter and exit the winding box, thereby ensuring that the double wires 30 can be smoothly wound on the winding disc 20. The hollow straight tube 24 provides an additional passage for the cylindrical body 13 and enhances the stability of the overall structure of the winding box. In addition, the mounting position on the winding disc 20 is used to limit the coil spring 41, so as to ensure that the coil spring 41 always remains in the mounting position and maintains a stable state during the working process, thereby being able to continuously stretch and reset.

[0049] Please refer to Figure 4 and Figure 5 , which are respectively structural schematic diagrams of the upper shell 11 and the lower shell 12 of the winding box provided by the embodiment of the present application.

[0050] Specifically, the wire inlet 14 and the wire outlet 15 of the shell are used to guide the entry and exit of the double line 30, ensuring that the double line 30 can smoothly enter and exit the take-up box. The inner wall of the inner cavity is provided with a cylinder 13, which is used to limit other components and can also guide the path of the double line 30, assisting the double line 30 to smoothly complete the synchronous winding and unwinding process.

[0051] Please refer to Figure 6 and Figure 7 , which are respectively a first angle and a second angle of the take-up disc 20 of the take-up box provided by the embodiment of the utility model.

[0052] Specifically, the two ends of the coil spring 41 are respectively connected to the cylinder 13 (i.e. the shell) and the take-up disc 20, and the end of the coil spring 41 connected to the shell cannot move, and the other end of the coil spring 41 connected to the take-up disc 20 can synchronously rotate with the take-up disc 20. This connection mode can enable the take-up disc 20 to exert a pulling force on the coil spring 41 during the stretching of the double line 30, and also enable the coil spring 41 to exert a driving force on the take-up disc 20 during the resetting process. When the double line 30 is pulled out, the pulling force generated causes the take-up disc 20 to start rotating in one direction (forward rotation), thereby unwinding the double line 30. The unwinding of the double line 30 is synchronous, i.e. both lines are unwound at the same time. At the same time, the coil spring 41 is synchronously stretched, and the stretching of the coil spring 41 causes the elastic potential energy of the coil spring 41 to increase. When the double line 30 needs to be retracted, the elastic potential energy of the coil spring 41 causes it to reset and return to its original shape. The resetting force of the coil spring 41 will drive the take-up disc 20 to start rotating in the other direction (reverse rotation), thereby synchronously retracting the double line 30. And due to the design of the coil spring 41, the length and tension of the double line 30 being unwound and retracted remain consistent, avoiding the situation that the double line 30 is not balanced during the winding and unwinding process. Overall, the take-up box ensures the effective separation and synchronous winding and unwinding of the double line 30 through reasonable component layout and design.

[0053] Compared with the prior art, the take-up box provided in the embodiment has a cylindrical structure of the take-up reel 20, which facilitates the synchronous winding and unwinding of the double wires 30. The cylindrical structure is provided with double annular grooves that are parallel to each other and concentric with the cylindrical structure. During winding and unwinding, the double wires 30 are wound in different annular grooves, effectively avoiding the possibility of crossing and entangling of the two wires. Each wire has its own space, which can significantly reduce the risk of knotting. In addition, the annular partition 213 arranged between the double annular grooves further enhances the separation effect of the double wires 30. This annular partition 213 ensures that the double wires 30 do not interfere with each other during synchronous winding and unwinding, maintaining the smoothness and convenience of the synchronous winding and unwinding process of the double wires 30, while also providing certain protection for the double wires 30. It can be seen that, through reasonable structural design and functional configuration, the take-up box effectively solves the problem of easy entanglement and knotting of the double wires 30 during synchronous winding and unwinding, significantly improves the user experience, and reduces the risk of damage to the double wires 30.

[0054] In some embodiments of the present application, two screw mounting holes 16 are arranged opposite to the outer wall of the shell.

[0055] Specifically, the take-up box can be conveniently fixed at a specific position or device through the screw mounting holes 16, ensuring that it will not move or fall off during use due to external forces. This fixing method improves the stability of the take-up box and avoids functional failure due to instability. By providing screw mounting holes 16, users can conveniently disassemble the take-up box for maintenance, making the maintenance process of the take-up box more convenient.

[0056] In some embodiments of the present application, a strip-shaped through groove 131 for embedding one end of the coil spring 41 is arranged radially at the top of the cylindrical body 13, and a first stand 25 for fixing the other end of the coil spring 41 is arranged on the take-up reel 20, the first stand 25 being arranged inside the mounting position and separated from the inner wall of the mounting position.

[0057] Specifically, the design of the strip-shaped through groove 131 and the first stand 25 can effectively fix both ends of the coil spring 41, preventing displacement or falling off during work. This stability ensures that the coil spring 41 can work normally during stretching and resetting, avoiding functional failure due to looseness. Moreover, this fixing method makes the installation and disassembly of the coil spring 41 much simpler. Users only need to embed one end of the coil spring 41 into the strip-shaped through groove 131 and wrap the other end around the first stand 25 to complete the installation, reducing complex operation steps and improving user experience.

[0058] In some embodiments of the present application, the take-up reel 20 is provided with a second post 26 for limiting the double wire 30, the second post 26 being located inside the mounting position and arranged separately from the inner wall of the mounting position; after passing through the inlet hole 22, the double wire 30 vertically passes through the gap between the second post 26 and the inner wall of the mounting position, and then extends out through the outlet hole 23.

[0059] Specifically, the gap formed between the second post 26 and the inner wall of the mounting position provides a smooth path for the double wire 30. By guiding through this path, the double wire 30 can quickly form a vertical walking state, not only saving space but also maintaining the vertical winding neatness of the double wire 30, ensuring smoothness during winding and unwinding. It should be noted that the width of the gap is slightly larger than the vertical thickness of the double wire 30 to facilitate the movement of the double wire 30 in the gap.

[0060] In some embodiments of the present application, the take-up reel further comprises a positioning structure, the positioning structure comprising a first post 121, a second post 122, a third post 111, and a first positioning hole 112;

[0061] The outer edge of one of the upper shell 11 and the lower shell 12 is provided with the first post 121, the top of the first post 121 is provided with the second post 122, the width of the second post 122 is smaller than the width of the first post 121, the outer edge of the other of the upper shell 11 and the lower shell 12 is provided with the third post 111 corresponding to the position of the first post 121, the top of the third post 111 is provided with the first positioning hole 112 corresponding to the position of the second post 122, and the width of the third post 111 is equal to the width of the first post 121; when the second post 122 is inserted into the first positioning hole 112, the second post 122 and the first positioning hole 112 are in interference fit, and the first post 121 and the third post 111 are aligned.

[0062] Specifically, the design of the first post 121 and the third post 111 helps the upper shell 11 and the lower shell 12 to achieve preliminary positioning during assembly. The design of the second post 122 and the first positioning hole 112 ensures that the upper shell 11 and the lower shell 12 can be accurately aligned during assembly. When the second post 122 is inserted into the first positioning hole 112, the interference fit design can effectively maintain the close contact between the two, ensuring the stability of the overall structure of the shell. Through this positioning structure, the connection between the upper shell 11 and the lower shell 12 is more secure, allowing the shell to withstand greater external pressure and impact. This enhanced structural strength helps to improve the durability and reliability of the take-up reel, extending its service life.

[0063] In some embodiments of the present application, the take-up box comprises three positioning structures, and each two of the positioning structures form an included angle of 120 degrees.

[0064] Specifically, the three positioning structures are uniformly distributed on the outer edge of the shell, and each two of the positioning structures form an included angle of 120 degrees. The design of the included angle of 120 degrees can make the three positioning structures provide higher positioning accuracy. By setting the positioning points at different angles, it can be ensured that the upper shell 11 and the lower shell 12 can be more accurately aligned during installation, effectively preventing the upper shell 11 and the lower shell 12 from shifting or moving during use, ensuring that they always stay in the predetermined position, thereby improving the safety and reliability of the take-up box. In addition, the uniform distribution of the layout can also improve the appearance of the take-up box, making the take-up box more visually harmonious and meeting the aesthetic principles of industrial design.

[0065] In some embodiments of the present application, the upper shell 11 and the lower shell 12 are both circular structures and are concentrically arranged, the inner cavity is a cylindrical cavity, the take-up reel 20 is concentric with the shell, the cylindrical body 13 is located at the center of the lower shell 12, the lower shell 12 is provided with the wire inlet 14, and the upper shell 11 is provided with the wire outlet 15.

[0066] It should be noted that the above design is only one of the structural schemes of the take-up box. In actual application, various structural changes can be made to the take-up box according to specific needs, such as adjusting the shape of the shell, changing the positions of the wire outlet 15 and the wire inlet 14, etc., to adapt to different application scenarios and user needs. Here, no further examples are given. In addition, the first column 25 and the second column 26 can both be arc-shaped columns concentric with the shell, so as to further maintain the structural consistency of the take-up box.

[0067] In some embodiments of the present application, the take-up box further comprises a screw, a screw hole 132 is arranged at the center of the top of the cylindrical body 13, the upper shell 11 is provided with a mounting through hole 113, and the screw passes through the mounting through hole 113 and the screw hole 132 in sequence, so that the upper shell 11 and the lower shell 12 are screw-connected.

[0068] Specifically, the screw connection method can simply and effectively tightly fix the upper shell 11 and the lower shell 12 together, enhancing the stability of the overall structure of the shell, preventing loosening or separation during use. When the take-up box needs to be maintained or repaired, the screw connection method can also conveniently disassemble and reassemble the shell, reducing the complexity and time cost of maintenance. It should be noted that the screw is not shown in the structural schematic diagram of the take-up box shown above. In actual application, appropriate screw types and specifications can be selected for screw connection of the upper shell 11 and the lower shell 12 according to specific needs, to ensure the firmness and safety of the connection.

[0069] Referring to Figure 8 As shown in the structure diagram of the track disc 43 of the take-up box provided in the embodiments of the present application.

[0070] In some embodiments of the present application, the take-up box further comprises a state switching structure, which is arranged in the inner cavity and above the take-up disc 20, and comprises a limiting groove, a ball 42 and a track disc 43;

[0071] The limiting groove is a strip-shaped groove 114 and is arranged on the inner wall of the upper shell 11;

[0072] The ball 42 is arranged between the track of the track disc 43 and the strip-shaped groove 114, and can roll between the track and the strip-shaped groove 114;

[0073] A circular through hole 431 is arranged at the center position of the track disc 43, which is concentric with the take-up disc 20, and the cylindrical body 13 extends into the circular through hole 431. An assembly position for assembling the track disc 43 is further arranged above the take-up disc 20, and when the track disc 43 is assembled in the assembly position, the track disc 43 can rotate synchronously with the take-up disc 20. Two outer arc tracks with the same shape, two inner arc tracks with the same shape, two switching tracks with the same shape and two locking tracks with the same shape are arranged on the track disc 43. The depth of the tail end of the locking track is greater than that of the other tracks. One of the outer arc tracks, one of the inner arc tracks, one of the switching tracks and one of the locking tracks together form a first track 436, and the other outer arc track, the other inner arc track, the other switching track and the other locking track together form a second track 437. The first track 436 and the second track 437 have the same shape and are distributed in a circumferential array around the circular through hole 431.

[0074] When the ball 42 rolls in one direction along the strip-shaped groove 114, the ball 42 can circulate and roll in the inner arc track;

[0075] When the ball 42 rolls in the other direction along the strip-shaped groove 114, the ball 42 rolls into the outer arc track through the switching track and can circulate and roll in the outer arc track;

[0076] When the ball 42 switches the rolling direction in the outer arc track and continues to roll along the outer arc track for a distance, the ball 42 rolls into the tail end of the locking track and is limited by the tail end;

[0077] When the ball 42 rolls out of the tail end and rolls a distance in the switching track, the ball 42 re-rolls into the inner arc track.

[0078] Specifically, four types of tracks are provided on the track disc 43, and each type of track (outer arc track, inner arc track, switching track and locking track) has two tracks, and the two tracks of the same type are arranged in a circumferential array around the circular through hole 431. One of the outer arc tracks 4321, one of the inner arc tracks 4331, one of the switching tracks 4341 and one of the locking tracks 4351 together form a first track 436, and the other of the outer arc tracks 4322, the other of the inner arc tracks 4332, the other of the switching tracks 4342 and the other of the locking tracks 4352 together form a second track 437, and the first track 436 and the second track 437 are also arranged in a circumferential array around the circular through hole 431. The ball 42 is a stainless steel ball. In order to facilitate the rolling of the stainless steel ball, lubricating oil can be filled between the tracks of the track disc 43 and the strip-shaped groove 114 to make the rolling process of the ball 42 smoother. The ball 42 can circulate and roll in the inner arc track in one direction, at which time the relative rotation between the take-up reel 20 and the upper shell 11 where the strip-shaped groove 114 is located occurs; when the ball 42 rolls into the outer arc track through the switching track, the ball 42 can circulate and roll in the outer arc track in the other direction, at which time the relative rotation between the take-up reel 20 and the upper shell 11 where the strip-shaped groove 114 is located also occurs; when the ball 42 rolls a certain distance in the outer arc track, the ball 42 rolls into the tail end of the locking track, so that the ball 42 cannot continue to roll, at which time the relative rotation between the take-up reel 20 and the upper shell 11 where the strip-shaped groove 114 is located does not occur; when the ball 42 rolls a certain distance in the locking track again, the ball 42 re-rolls into the inner arc track.

[0079] Specifically, when the double line 30 is pulled to a certain length and then retracted a small distance, the ball 42 in the inner arc track will turn around and roll into the locking track from the switching track, so that the ball 42 is stuck, at which time the take-up reel 20 will not be reversed due to the contraction force of the coil spring 41; pull the double line 30 out again and then release it, at which time the ball 42 rolls into the inner arc track from the locking track and circulates and rolls in the inner arc track, at which time the take-up reel 20 rotates together with the track disc 43, thereby realizing the local winding and unwinding of the double line 30. It can be seen that through the track design, the synchronous unwinding and synchronous retraction of the double line 30 in the take-up box can be realized, and at the same time, when the double line 30 is pulled out to different distances and then released, the take-up reel 20 can be stuck at different positions, which is suitable for storing double lines 30 of different lengths.

[0080] In some embodiments of the present application, the outer wall of the lower shell 12 is further provided with an arc-shaped clamping groove 123 for vertically clamping the double line 30, and when the double line 30 is vertically clamped in the arc-shaped clamping groove 123, the double line 30 and the arc-shaped clamping groove 123 are in interference fit.

[0081] Specifically, the double line 30 is vertically clamped in the arc-shaped clamping groove 123, which can reduce the contact friction between the double line 30 and the external environment, and plays a certain protective role for the double line 30. When the double line 30 is vertically clamped in the arc-shaped clamping groove 123, the double line 30 and the arc-shaped clamping groove 123 form an interference fit, which can effectively fix the double line 30 and prevent accidental loosening or damage due to pulling during use. The design of the arc-shaped clamping groove 123 can make the double line 30 maintain a certain bending state when being stored, avoiding direct stretching or compression of the double line 30 during storage, thereby reducing the risk of damage and effectively prolonging the service life of the double line 30.

[0082] The winding box provided by the embodiment has simple structure and convenient use, can realize synchronous winding and unwinding and local winding and unwinding of the double line 30, can maintain good performance in various use environments, provides excellent use experience for users, and meets the needs of convenience and high efficiency in modern life.

[0083] It should be noted that the technical solutions of each embodiment of the present application can be combined with each other, but must be based on the realization of ordinary skilled persons in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of the present application.

[0084] The above only describes some or preferred embodiments of the present application, neither the text nor the drawings can limit the scope of protection of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields based on the content of the present application and the drawings is included in the scope of protection of the present application.

Claims

1. A take-up box, characterized in that The application relates to a double-wire winding and unwinding device. The shell comprises an upper shell and a lower shell, which enclose an inner cavity for accommodating the winding disc, the winding and unwinding structure and the double wire in a curled state, the inner wall of the inner cavity is provided with a cylinder, and the shell is provided with an inlet and an outlet. The winding disc is in a cylindrical structure, the periphery of the cylindrical structure is provided with double annular grooves which are parallel to each other and concentric with the cylindrical structure, an annular partition plate which is concentric with the cylindrical structure is arranged between the double annular grooves, the cylindrical structure is provided with an inlet through hole and an outlet through hole, a hollow straight pipe is arranged at the center position of the cylindrical structure, and the cylinder extends into the hollow straight pipe; the winding disc is used for guiding the winding of the double wire, one of the double wire sequentially passes through the inlet and the inlet through hole, is wound on one of the double annular grooves, sequentially passes through the outlet through hole and the outlet, and extends out of the winding box, and the other of the double wire sequentially passes through the inlet and the inlet through hole, is wound on the other of the double annular grooves, sequentially passes through the outlet through hole and the outlet, and extends out of the winding box; the winding disc is further provided with a mounting position for mounting the winding and unwinding structure. The winding and unwinding structure comprises a coil spring, the coil spring is in a curled state around the cylinder and is arranged in the mounting position, one end of the coil spring is connected with the cylinder, the other end of the coil spring is connected with the winding disc, and through the stretching and resetting of the coil spring, the winding disc can be positively rotated and reversely rotated, so that the double wire can be synchronously unwound and synchronously wound back. The outer wall of the shell is relatively provided with two screw mounting holes.

2. A take-up box according to claim 1, characterized in that The top of the cylinder is radially provided with a strip-shaped through groove for embedding one end of the coil spring, the winding disc is provided with a first stand column for fixing the other end of the coil spring, and the first stand column is arranged inside the mounting position and is separately arranged from the inner wall of the mounting position.

3. The take-up box according to claim 1, wherein The winding disc is provided with a second stand column for limiting the double wire, and the second stand column is arranged inside the mounting position and is separately arranged from the inner wall of the mounting position; after the double wire passes through the inlet through hole, the double wire vertically passes through the gap between the second stand column and the inner wall of the mounting position, and then extends out of the outlet through hole.

4. The take-up box according to claim 1, wherein The winding box further comprises a positioning structure, and the positioning structure comprises a first column, a second column, a third column and a first positioning hole.

5. The take-up box according to claim 1, wherein The outer edge of one of the upper shell and the lower shell is provided with the first column, the top of the first column is provided with the second column, the width of the second column is smaller than that of the first column, the outer edge of the other of the upper shell and the lower shell is provided with the third column corresponding to the position of the first column, the top of the third column is provided with the first positioning hole corresponding to the position of the second column, and the width of the third column is equal to that of the first column; when the second column is inserted into the first positioning hole, the second column and the first positioning hole are in interference fit, and the first column and the third column are arranged in alignment. The winding box comprises three positioning structures, and an included angle of 120 degrees is formed between every two positioning structures.

6. A take-up box according to claim 5, characterized in that ​ 7. The take-up box of claim 1, wherein The upper shell and the lower shell are circular structures and are concentrically arranged, the inner cavity is a cylindrical cavity, the take-up reel is concentric with the shell body, the cylinder is located at the center of the lower shell, the lower shell is provided with the wire inlet, and the upper shell is provided with the wire outlet.

8. A take-up box according to claim 7, characterized in that The take-up box further comprises a screw, a screw hole is arranged at the center of the top of the cylinder, the upper shell is provided with a mounting through hole, and the screw passes through the mounting through hole and the screw hole in sequence to screw the upper shell and the lower shell.

9. A take-up box according to claim 7, characterized in that The take-up box further comprises a state switching structure, the state switching structure is arranged in the inner cavity and above the take-up reel, and the state switching structure comprises a limiting groove, a ball and a track disc. The limiting groove is a strip-shaped groove and is arranged on the inner wall of the upper shell. The ball is arranged between the track of the track disc and the strip-shaped groove, and the ball can roll between the track and the strip-shaped groove. The center of the track disc is provided with a circular through hole, the circular through hole is concentric with the take-up reel, the cylinder extends into the circular through hole, and the upper portion of the take-up reel is further provided with an assembly position for assembling the track disc, when the track disc is assembled in the assembly position, the track disc can rotate synchronously with the take-up reel; two outer arc tracks, two inner arc tracks, two switching tracks and two locking tracks are arranged on the track disc, the depth of the tail end of the locking track is greater than that of the other tracks, one of the outer arc tracks, one of the inner arc tracks, one of the switching tracks and one of the locking tracks together form a first track, the other of the outer arc tracks, the other of the inner arc tracks, the other of the switching tracks and the other of the locking tracks together form a second track, the first track and the second track are the same in shape and are distributed in a circumferential array around the circular through hole; When the ball rolls in one direction along the strip-shaped groove, the ball can circulate and roll in the inner arc track; When the ball rolls in the other direction along the strip-shaped groove, the ball rolls into the outer arc track through the switching track and can circulate and roll in the outer arc track; When the ball switches the rolling direction in the outer arc track and continues to roll along the outer arc track for a distance, the ball rolls into the tail end of the locking track and is limited by the tail end; When the ball rolls out of the tail end and switches the rolling direction in the locking track for a distance, the ball re-rolls into the inner arc track.

10. The wire take-up box according to claim 7, characterized in that: The outer wall of the lower shell is further provided with an arc-shaped clamping groove for vertically clamping the double wires, when the double wires are vertically clamped in the arc-shaped clamping groove, the double wires and the arc-shaped clamping groove are in interference fit.

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