An internal cable winding mechanism suitable for small modules

Abstract

The present invention provides an internal wire coiling mechanism suitable for small modules, comprising a fixed shaft, a rotating shaft, a shell, and a wire coiling head which are coaxially arranged in sequence, the fixed shaft and the rotating shaft are plugged and limited, the front end of the shell is fixedly connected to the fixed shaft, and the rotating shaft is slidably connected in the space formed by the shell and the fixed shaft; an elastic pushing device which can push the rotating shaft toward the fixed shaft is arranged in the shell; and a loosening tool which can push the rotating shaft away from the fixed shaft is arranged, and the loosening tool can drive the rotating part formed by the rotating shaft and the wire coiling head to rotate to realize the coiling of the wire. The present invention proposes an internal wire coiling mechanism suitable for small modules, which can realize the coiling of the wire inside the device outside the device, and can facilitate the maintenance of the device and improve the reliability of the device.

Description

Technical Field

[0001] The invention relates to the technical field of wire coiling devices, and in particular to an internal wire coiling mechanism suitable for small modules. Background Art

[0002] In the design and application of non-standard module equipment, due to the limitations of external dimensions and functional requirements, various components often need to be connected by wires, and the wires often require additional redundant length to meet the equipment assembly and disassembly. For example, the wire connecting the box cover and the box body must have a certain length to facilitate the assembly of the box cover and the box body. The redundant length of the wire cannot be coiled after assembly. When the equipment faces mechanical or thermal environment requirements, the unfixed redundant wires have certain safety hazards.

[0003] A common method for handling redundant length wires is to bundle and fix the wires with self-locking nylon cable ties. The bundled wires are suspended between the connected components. Due to the effect of gravity, tension is applied to the connectors at both ends of the wires, which poses a risk of the connectors becoming loose, increasing the probability of equipment maintenance.

[0004] During the application process, the module can be filled with glue and cured to handle redundant length wires to improve the reliability of the equipment. However, the glue filling and curing treatment will reduce the maintenance performance of the equipment, making it inconvenient for equipment maintenance and parts replacement. In addition, the use of glue filling and curing treatment will increase the weight of the equipment, which is not conducive to the transportation and installation of the equipment.

[0005] Therefore, designing a small wire coiling mechanism that can store wires inside the equipment has important practical value and can facilitate equipment maintenance and improve equipment reliability. Summary of the invention

[0006] The present invention provides an internal wire coiling mechanism suitable for a small module, which can realize the coiling of the internal wires of the device outside the device, thereby facilitating the maintenance of the device and improving the reliability of the device.

[0007] In order to achieve the above technical objectives and the above technical effects, the present invention solves the above problems through the following technical solutions:

[0008] The invention relates to an internal wire winding mechanism suitable for a small module, comprising a fixed shaft, a rotating shaft, an outer shell, and a wire winding head which are coaxially arranged in sequence; the front end of the fixed shaft is fixedly connected to the inner wall of the module, and the fixed shaft and the rotating shaft are plugged and limited by corresponding anti-rotation bosses and anti-rotation grooves; the rotating shaft adopts a stepped structure which is larger at the front and smaller at the back, and the outer shell is provided with a stepped through hole in which the rotating shaft can be inserted and slide back and forth, and the front end of the outer shell is fixedly connected to the fixed shaft; an elastic pushing device which can push the rotating shaft toward the fixed shaft is provided between the steps of the rotating shaft and the outer shell; the tail end of the rotating shaft passes through the stepped through hole and is connected to the wire winding head, and the wire winding head comprises a wire winding seat connected to the tail end of the rotating shaft, and at least one wire binding column arranged at the front end of the wire winding seat and parallel to the rotating shaft; it also comprises a loosening tool with a polygonal columnar structure, the rotating shaft is provided with an axial rotating blind hole which matches the cross-section of the loosening tool, the loosening tool passes through the inner wall of the module and the axial through hole of the fixed shaft in sequence, and the end portion abuts against the rotating blind hole.

[0009] In the above scheme, the rotating shaft is slidably installed in the space formed by the fixed shaft and the outer shell, and the elastic pushing device pushes the rotating shaft toward the fixed shaft, so that the anti-rotation boss cooperates with the anti-rotation groove to limit the relative rotation of the rotating shaft and the fixed shaft, and the wire binding column and the wire winding head at the tail move with the rotating shaft, and the rotating shaft and the wire winding head constitute a rotating part.

[0010] After the tensioning tool is inserted, an axial force is applied to separate the rotating shaft from the fixed shaft. After the rotating shaft separates from the fixed shaft, it can rotate with the tensioning tool. The wire passes through the gap between the wire binding column and the tail end of the rotating shaft, and will be coiled on the rotating part as the rotating part rotates. Otherwise, the winding state will be untied. After the tensioning tool is pulled out, the rotating shaft will be locked to the fixed shaft, and the rotating part will stop rotating.

[0011] In order to quickly realize elastic self-locking between the rotating shaft and the fixed shaft, the elastic pushing device includes a pushing spring fixed on the shell step, and a ball installed at the front end of the pushing spring and in sliding contact with the rotating shaft.

[0012] Furthermore, the stepped surface of the shell is provided with a mounting hole for inserting and fixing the tail end of the push spring, and the stepped surface of the rotating shaft is provided with an annular slide rail for guiding the ball.

[0013] Furthermore, an axial threaded hole is provided at the rear end of the rotating shaft, a corresponding axial screw is provided at the middle of the front end of the cable reel seat, and a plurality of wire binding posts are evenly distributed along the circumference at the front end of the cable reel seat.

[0014] Furthermore, the anti-rotation boss and the anti-rotation groove adopt a tooth-shaped anti-rotation structure, and the outer wall of the anti-rotation boss and the inner wall of the anti-rotation groove are provided with corresponding teeth. The tooth matching structure has many anti-rotation surfaces and a large contact area, which can effectively improve the anti-rotation stability.

[0015] Furthermore, the front end of the shell and the outer wall of the fixed shaft are provided with corresponding internal and external threads, and the front end of the shell is threadedly connected to the fixed shaft.

[0016] Furthermore, the fixing shaft is threadably connected to the threaded through hole on the inner wall of the module, and the threaded through hole allows the front end of the tightening tool to pass through.

[0017] Furthermore, the tightening tool comprises a front polygonal columnar insertion end and a rear hand-held end, and a side wall of the hand-held end is provided with an anti-slip pattern.

[0018] The advantages and effects of the present invention are:

[0019] 1. The present invention proposes an internal winding mechanism suitable for small modules. The rotating shaft and the winding head constitute a rotating part. The rotating part can be self-locked to the fixed shaft to achieve positioning and anti-rotation under the push of the elastic pushing device. The mechanism automatically maintains the rotation lock when not in operation, can effectively maintain the wire winding state, and has good stability.

[0020] 2. In the present invention, the separation of the rotating part from the fixed shaft and the rotation of the rotating part can be achieved by inserting a tightening tool from the outside, and the winding of the internal wires of the device can be achieved outside the device, without the need for complex processes such as glue filling and curing of the module, which facilitates the disassembly, assembly and maintenance of the equipment.

[0021] 3. In the present invention, the fixed shaft and the rotating shaft adopt a toothed anti-rotation structure. The toothed structure has a small requirement on the rotation angle of the rotating part, and the rotating part can be self-locked after being rotated to different angles. In addition, the toothed structure has many anti-rotation surfaces and a large contact area, which can further improve the anti-rotation stability of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 This is an exploded view from a first perspective of the present invention;

[0024] Figure 3 It is an exploded view from a second perspective of the present invention;

[0025] Figure 4 for Figure 1 a cross-sectional view of the structure shown;

[0026] Figure 5 It is a schematic diagram of the structure of the tensioning tool.

[0027] Figure number identification: 1. Fixed shaft, 2. Rotating shaft, 21. Rotating blind hole, 3. Housing, 31. Stepped through hole, 4. Wire coiling head, 41. Wire coiling seat, 42. Wire binding column, 43. Axial screw, 5. Elastic pushing device, 51. Pushing spring, 52. Ball, 6. Loosening tool. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The internal cable winding mechanism of the present embodiment is suitable for a small module, as shown in the attached Figure 1 , 2 As shown in Figures 1 and 3, the main body includes a fixed shaft 1, a rotating shaft 2, a housing 3, a wire coil head 4, an elastic pushing device 5 and a tightening tool 6. The fixed shaft 1, the rotating shaft 2, the housing 3 and the wire coil head 4 are coaxially arranged in sequence, the front end of the fixed shaft 1 is threadedly connected to the threaded through hole opened in the side wall of the module, and the rear end of the fixed shaft 1 is provided with an anti-rotation boss with a side wall having a flower-tooth structure. The rotating shaft 2 adopts a stepped cylindrical structure with a larger front and a smaller rear, and a flower-tooth anti-rotation groove matching the anti-rotation boss is provided at the front end of the rotating shaft 2. When the anti-rotation boss is plugged into the anti-rotation groove, the rotating shaft 2 is locked, as shown in the attached figure. Figure 4 shown.

[0030] The front end of the housing 3 is provided with a stepped through hole 31 into which the rotating shaft 2 can be placed and slide forward and backward. The stepped through hole 31 cooperates with the stepped structure of the rotating shaft 2, and the rear end of the rotating shaft 2 passes a certain distance from the rear end of the housing 3. The front end of the housing 3 and the outer wall of the fixed shaft 1 are provided with corresponding internal and external threads. The front end of the housing 3 is threadedly fixed to the fixed shaft 1, and the rotating shaft 2 can slide forward and backward in the space formed by the fixed shaft 1 and the housing 3.

[0031] As attached Figure 2 , 3 As shown, three elastic push devices 5 are evenly distributed along the circumference between the rotating shaft 2 and the step of the housing 3. The elastic push device 5 includes a push spring 51 and a ball 52. The rear end of the push spring 51 is fixed to the mounting hole opened on the step surface of the housing 3. The ball 52 is fixed to the front end of the push spring 51. The ball 52 is in sliding contact with the step surface of the rotating shaft 2. The push spring 51 provides a thrust from the rotating shaft 2 to the fixed shaft 1. In the absence of reverse thrust, the elastic push device 5 can make the rotating shaft 2 abut against the fixed shaft 1.

[0032] An axial threaded connection hole is provided at the rear end of the rotating shaft 2, and the wire winding head 4 includes a wire winding seat 41. An axial screw 43 corresponding to the screw hole at the rear end of the rotating shaft 2 is provided at the front end of the wire winding seat 41. The wire winding head 4 is threadedly connected to the connection hole at the rear end of the rotating shaft 2 through the axial screw 43, and the connection length can be adjusted according to the length of the wire. A plurality of wire binding posts 42 are provided along the circumference at the front end of the wire winding seat 41, and the center of the circumference is located on the rotation axis of the mechanism. The wire binding posts 42 are radially spaced a certain distance from the rotating shaft 2 to form a limiting space for the wire to pass through. This structure can better limit the wire and effectively prevent the wire from slipping. An annular groove for the wire binding posts 42 to be inserted is provided on the rear end face of the housing 3. When the rotating shaft 2 is plugged and locked to the fixed shaft 1, the front end of the wire binding posts 42 is inserted into the annular groove, which can make the structure more compact and stable.

[0033] The rotating shaft 2 and the winding head 4 constitute the rotating part of the mechanism, and the rotating part is locked to the fixed shaft 1 under the pushing action of the elastic pushing device 5. When winding the wire, the wire is passed through the gap between the wire binding column 42 and the rotating shaft 2, and the rotating part is rotated, so that the wire can be wound on the circumference formed by multiple wire binding columns 42.

[0034] As attached Figure 5 As shown, the loosening tool 6 is a polygonal columnar structure, including a polygonal columnar insertion end at the front and a hand-held end at the rear, and the side wall of the hand-held end is provided with an anti-slip pattern. The fixed shaft 1 is provided with an axial through hole for the front end of the loosening tool 6 to pass through, and the rotating shaft 2 is provided with an axial rotation blind hole 21 that matches the cross section of the loosening tool 6.

[0035] When the winding mechanism is operated, the polygonal columnar extension end of the tensioning tool 6 is passed through the module side wall and the axial through hole of the fixed shaft 1 in turn, and the front end abuts against the inner end of the rotating blind hole 21. The tensioning tool 6 applies an axial thrust to the rotating shaft 2, so that the rotating shaft 2 overcomes the axial force of the elastic pushing device 5 and disengages from the fixed shaft 1. The tensioning tool 6 is rotated to rotate the rotating shaft 2 and drive the entire rotating component to rotate. The rotation of the rotating component can coil the wire around the wire binding column 42 to achieve the winding of the wire inside the module. After the winding operation is completed, the axial force applied by the tensioning tool 6 is reduced to make the rotating shaft 2 approach the fixed shaft 1, and the angle of the tensioning tool 6 is fine-tuned to make the rotating groove of the rotating shaft 2 fit and plug with the rotating flange of the fixed shaft 1. After confirming that the rotating component cannot rotate, the tensioning tool 6 is withdrawn to complete the winding operation. Otherwise, the rotating shaft 2 is rotated in the opposite direction to unwind the wire.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. Various changes, modifications, substitutions and variations of these embodiments without departing from the principle and spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. An internal cable winding mechanism suitable for small modules, characterized in that: The invention comprises a fixed shaft (1), a rotating shaft (2), a housing (3), and a wire coiling head (4) which are coaxially arranged in sequence; the front end of the fixed shaft (1) is fixedly connected to the inner wall of the module, and the fixed shaft (1) and the rotating shaft (2) are plugged and limited by corresponding anti-rotation bosses and anti-rotation grooves; the anti-rotation bosses and the anti-rotation grooves adopt a flower-tooth-shaped anti-rotation structure, and the outer wall of the anti-rotation boss and the inner wall of the anti-rotation groove are provided with corresponding flower teeth; The rotating shaft (2) adopts a stepped structure with a larger front and a smaller rear; the housing (3) is provided with a stepped through hole (31) in which the rotating shaft (2) can be placed and slide forward and backward; the front end of the housing (3) is fixedly connected to the fixed shaft (1); an elastic pushing device (5) is arranged between the rotating shaft (2) and the steps of the housing (3) and can push the rotating shaft (2) toward the fixed shaft (1); the elastic pushing device (5) comprises a pushing spring (51) fixed on the steps of the housing (3), and a ball (52) mounted on the front end of the pushing spring (51) and in sliding contact with the rotating shaft (2); The tail end of the rotating shaft (2) passes through the stepped through hole (31) and is connected to the wire winding head (4), and the wire winding head (4) comprises a wire winding seat (41) connected to the tail end of the rotating shaft (2), and at least one wire binding post (42) arranged at the front end of the wire winding seat (41) and parallel to the rotating shaft (2); It also includes a loosening tool (6) with a polygonal columnar structure, the rotating shaft (2) is provided with an axial rotating blind hole (21) that matches the cross section of the loosening tool (6), the loosening tool (6) passes through the inner wall of the module and the axial through hole of the fixed shaft (1) in sequence, and the end portion abuts against the rotating blind hole (21); the loosening tool (6) includes a polygonal columnar insertion end at the front, and a handheld end at the rear, and the side wall of the handheld end is provided with an anti-slip pattern.

2. The internal cable winding mechanism suitable for a small module according to claim 1, characterized in that: The stepped surface of the housing (3) is provided with a mounting hole for the rear end of the push spring (51) to be placed and fixed, and the stepped surface of the rotating shaft (2) is provided with an annular slide rail for guiding the ball (52).

3. The internal cable winding mechanism suitable for a small module according to claim 1, characterized in that: An axial threaded hole is provided at the rear end of the rotating shaft (2), a corresponding axial screw rod (43) is provided at the middle of the front end of the cable winding seat (41), and a plurality of cable binding posts (42) are evenly distributed along the circumference at the front end of the cable winding seat (41).

4. The internal cable winding mechanism suitable for a small module according to claim 1, characterized in that: The front end of the shell (3) and the outer wall of the fixed shaft (1) are provided with corresponding internal and external threads, and the front end of the shell (3) is threadedly connected to the fixed shaft (1).

5. The internal cable winding mechanism suitable for small modules according to claim 1, characterized in that: The fixed shaft (1) is detachably connected to the threaded through hole on the inner wall of the module through a thread, and the threaded through hole allows the front end of the tightening tool (6) to pass through.

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