A type of hinge connector

Abstract

This invention discloses a rotating shaft connector, comprising: a housing, a first rotating shaft, a second rotating shaft, a third helical gear, and a wire. The first rotating shaft has a first connecting section extending from a first through hole, and the outer peripheral wall of the first rotating shaft is provided with a first helical gear. The end face of the first connecting section is provided with a first wire-passing hole, and the first rotating shaft is provided with a first notch communicating with the first wire-passing hole. The second rotating shaft has a second connecting section extending from a second through hole, and the outer peripheral wall of the second rotating shaft is provided with a second helical gear. The end face of the second connecting section is provided with a second wire-passing hole, and the second rotating shaft is provided with a second notch communicating with the second wire-passing hole. The third helical gear meshes with the teeth of the first helical gear and the second helical gear respectively. The wire extends into the first wire-passing hole, passes through the first notch and the second notch, and extends out to the second wire-passing hole. In this way, the part of the wire located inside the rotating shaft connector always remains straight during rotation, which can fundamentally solve the problem of wire breakage.

Description

Technical Field

[0001] This invention relates to the field of connecting element technology, and in particular to a rotating shaft connector. Background Technology

[0002] In the fields of electronic equipment, automation equipment, and precision instruments, rotating joints need to transmit power and electrical signals synchronously. However, traditional shaft connectors are prone to damage when connecting the electrical components on both sides of the joint. When the devices at both ends of the shaft connector rotate relative to each other, the wires used to connect the electrical devices at both ends of the shaft connector are forced to bend repeatedly with the rotating parts. This periodic stress concentration phenomenon causes irreversible damage at the material mechanics level. Dislocation slip occurs in the metal lattice of the conductor at the bending point. With the increase of rotation, micro-cracks extend from the conductor surface to the core, eventually leading to the breakage of the conductive core. At the same time, the insulation layer undergoes molecular chain breakage under alternating curvature radius, manifested as insulation performance deterioration and even breakdown. When the joint needs to rotate continuously at large angles such as 180°, the fixed bending point formed by the wires in the traditional shaft is like a "hinge" in mechanical fatigue testing. After tens of thousands of cycles, it will inevitably lose its function. This dual failure mode is particularly prominent in high-precision rotating equipment such as electronic equipment, automation equipment, and industrial robots.

[0003] Existing technologies attempt to mitigate this problem through external protection. For example, increasing the bending radius of the cable can delay breakage, but it will cause the size of the swivel connector to increase exponentially, which goes against the trend of device miniaturization. Another example is using flexible circuit boards to replace wires, which sacrifices current carrying capacity and cannot meet the needs of high-power devices. In addition, the wires are placed outside the swivel connector, and the exposed wires are prone to wear in the usage scenario. Therefore, improvements are urgently needed. Summary of the Invention

[0004] The main objective of this invention is to provide a rotating shaft connector that solves the problem of easily damaged wires used to connect the devices at both ends of the rotating shaft connector in related technologies.

[0005] To achieve the above objectives, the present invention provides a rotating shaft connector, the rotating shaft connector comprising:

[0006] A housing having a mounting cavity and a first through hole and a second through hole communicating with the mounting cavity, the first through hole and the second through hole being spaced apart;

[0007] A first rotating shaft is rotatably installed in the mounting cavity. The first rotating shaft has a first connecting section extending from the first through hole. A first helical gear is provided on the outer peripheral wall of the first rotating shaft. The first helical gear is coaxially arranged with the rotating shaft of the first rotating shaft. A first wire-passing hole is provided on the end face of the first connecting section. A first notch communicating with the first wire-passing hole is provided on the outer peripheral wall of the first rotating shaft located inside the mounting cavity.

[0008] The second rotating shaft is rotatably installed in the mounting cavity. The second rotating shaft has a second connecting section extending from the second through hole. A second helical gear is provided on the outer peripheral wall of the second rotating shaft. The second helical gear is coaxially arranged with the rotating shaft of the second rotating shaft. The rotating shafts of the first rotating shaft and the second rotating shaft are arranged in parallel. A second wire-passing hole is provided on the end face of the second connecting section. A second notch communicating with the second wire-passing hole is provided on the outer peripheral wall of the second rotating shaft located inside the mounting cavity.

[0009] A third helical gear is rotatably mounted in the mounting cavity. The third helical gear meshes with the teeth of the first helical gear and the second helical gear respectively. The third helical gear is located between the first helical gear and the second helical gear.

[0010] A wire, which extends into the first wire-passing hole and exits through the first notch, the second notch, and the second wire-passing hole.

[0011] In some embodiments, the rotating shaft connector further includes a first bracket and a second bracket. One end of the first bracket is connected to the outer peripheral wall of the first connecting segment and can rotate with the first rotating shaft. The other end of the first bracket is used to connect to an external device. One end of the second bracket is connected to the outer peripheral wall of the second connecting segment and can rotate with the second rotating shaft. The other end of the second bracket is used to connect to an external device.

[0012] In some embodiments, the first bracket and the second bracket are provided with limiting ribs on the side facing the housing, and the housing is provided with arc-shaped limiting grooves corresponding to the positions of the two limiting ribs, with the two limiting ribs respectively located in the corresponding arc-shaped limiting grooves.

[0013] In some embodiments, the housing is provided with a third through hole and a fourth through hole communicating with the mounting cavity. The third through hole is coaxially arranged with the first through hole, and the fourth through hole is coaxially arranged with the second through hole. The first rotating shaft has a third connecting section extending from the third through hole, and the second rotating shaft has a fourth connecting section extending from the fourth through hole. The rotating shaft connector further includes a third bracket and a fourth bracket. The third bracket is connected to the third connecting section, and the fourth bracket is connected to the fourth connecting section.

[0014] In some embodiments, the pivot connector further includes four sets of locking components, wherein two of the locking components are respectively sleeved on the first connecting segment and the second connecting segment, and the two locking components respectively lock the first bracket and the second bracket so that the rotation of the first bracket and the second bracket is subject to resistance;

[0015] The other two sets of locking components are respectively sleeved on the third connecting section and the fourth connecting section and located on the side of the third bracket and the fourth bracket facing the housing. The other two sets of locking components lock the first rotating shaft and the second rotating shaft respectively, so that the rotation of the first rotating shaft and the second rotating shaft has resistance.

[0016] In some embodiments, the first connecting segment and the second connecting segment are provided with threaded segments. The locking assembly includes a cam, a spring, and a nut. The two cams are respectively sleeved on the first connecting segment and the second connecting segment. The first bracket and the second bracket are provided with a first positioning boss on one side facing the cam. The two cams are provided with positioning recesses that cooperate with the first positioning boss on the side facing the first positioning boss. The two springs are respectively sleeved on the first connecting segment and the second connecting segment and are located between the cam and the threaded segment. The two nuts are respectively threaded to the threaded segments of the first connecting segment and the second connecting segment.

[0017] In some embodiments, the third connecting segment and the fourth connecting segment are provided with threaded segments. The locking assembly includes a cam, a spring, and a nut. The two cams are respectively sleeved on the third connecting segment and the fourth connecting segment. The housing is provided with a second positioning boss on the side facing the two cams. The two cams are provided with positioning recesses that cooperate with the second positioning bosses on the side facing the second positioning bosses. The two springs are respectively sleeved on the third connecting segment and the fourth connecting segment and are located between the cams and the threaded segments. The two nuts are respectively threaded to the threaded segments of the third connecting segment and the fourth connecting segment.

[0018] In some embodiments, the cam has an arc-shaped limiting notch, and a limiting boss is provided on the side of the housing facing the cam, the limiting boss being located within the arc-shaped limiting notch.

[0019] In some embodiments, the housing includes an upper shell, a lower shell, a first mounting member, a second mounting member, and a third mounting member. The upper shell and the lower shell are connected and enclose to form the mounting cavity. The first mounting member, the second mounting member, and the third mounting member are installed in the mounting cavity. The first mounting member and the second mounting member are rotatably connected to the first rotating shaft and the second rotating shaft, and the third mounting member is rotatably connected to the third helical gear. Both the upper shell and the lower shell are provided with two through holes located between the first rotating shaft and the second rotating shaft. The first mounting member and the second mounting member are provided with threaded holes corresponding to each of the through holes.

[0020] In some embodiments, the shaft connector further includes a drive motor mounted on the outer surface of the housing. The output shaft of the drive motor extends into the mounting cavity and is connected to the third helical gear. The drive motor is electrically connected to an external device. The operation of the drive motor drives the third helical gear to rotate, causing the first shaft and the second shaft to rotate in opposite directions.

[0021] The beneficial effects of the technical solution of this invention are as follows:

[0022] The swivel connector of the present invention features a first swivel and a second swivel on a housing, each swivel bearing a helical gear, and a third helical gear positioned between the two helical gears. This third helical gear meshes with the two helical gears on the swivels. Thus, rotation of one swivel drives the other swivel to rotate synchronously. Furthermore, both swivels have wire-passing holes, and both swivels have notches within the housing that communicate with the wire-passing holes. This design allows wires to pass through the wire-passing hole on the end face of one swivel, exit through the notch within the housing, then enter through the notch on the other swivel, and exit through the wire-passing hole on the end face of the other swivel. This through-through design forms a straight wire channel. The wires within the swivel connector remain straight during rotation, thus completely eliminating bending stress and preventing wire bending or folding. This fundamentally solves the problem of wire breakage when connecting electronic devices on both sides of the swivel connector. Attached Figure Description

[0023] Figure 1 This is an exploded view of the structure of the rotating shaft connector according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the rotating shaft connector according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the rotating shaft connector according to an embodiment of the present invention;

[0026] Figure 4 for Figure 1 A schematic diagram of the structure of the first rotating shaft;

[0027] Figure 5 for Figure 1 A schematic diagram of the middle shell from one perspective;

[0028] Figure 6 for Figure 1 Another structural schematic diagram of the middle shell;

[0029] Figure 7 for Figure 1 Schematic diagram of the second support structure;

[0030] Figure 8 for Figure 1 Schematic diagram of the structure of the second mounting component;

[0031] Figure 9 for Figure 1 A schematic diagram of the cam structure.

[0032] Explanation of icon numbers:

[0033] 100, Housing; 100a, Mounting cavity; 110, Upper housing; 111, Through hole; 120, Lower housing; 130, First mounting component; 131, First through hole; 132, Second through hole; 133, Arc-shaped limiting groove; 134, Threaded hole; 140, Second mounting component; 141, Third through hole; 142, Fourth through hole; 143, Second positioning boss; 144, Limiting boss; 150, Third mounting component; 200, First rotating shaft; 210, First connecting section; 220, First helical gear; 230, First wire hole; 240, First notch; 2 50. Third connecting section; 300. Second rotating shaft; 310. Second connecting section; 320. Second helical gear; 330. Second wire hole; 340. Second notch; 350. Fourth connecting section; 400. Third helical gear; 500. Wire; 600. First bracket; 610. Second bracket; 611. Limiting rib; 612. First positioning boss; 620. Third bracket; 630. Fourth bracket; 700. Locking assembly; 710. Cam; 711. Positioning recess; 712. Arc-shaped limiting notch; 720. Spring piece; 730. Nut. Detailed Implementation

[0034] The solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In addition, the descriptions involving "first," "second," etc., in the present invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0035] To address the technical deficiencies in related technologies, this invention provides a rotating shaft connector. Please refer to [link / reference]. Figures 1 to 9 The swivel connector includes: a housing 100, a first swivel 200, a second swivel 300, a third helical gear 400, and a wire 500. The housing 100 has a mounting cavity 100a and a first through hole 131 and a second through hole 132 communicating with the mounting cavity 100a. The first through hole 131 and the second through hole 132 are spaced apart. The first through hole 131 and the second through hole 132 can restrict the rotational connection of the first swivel 200 and the second swivel 300 within the mounting cavity 100a. That is, the first swivel 200 is rotatably mounted within the mounting cavity 100a through the first through hole 131, and the second swivel 300 is rotatably mounted within the mounting cavity 100a through the second through hole 132.

[0036] Specifically, the first rotating shaft 200 is rotatably installed in the mounting cavity 100a. The first rotating shaft 200 has a first connecting section 210 extending from the first through hole 131. A first helical gear 220 is provided on the outer peripheral wall of the first rotating shaft 200. The first helical gear 220 is coaxially arranged with the rotating shaft of the first rotating shaft 200. A first wire-passing hole 230 is provided on the end face of the first connecting section 210. A first notch 240 communicating with the first wire-passing hole 230 is provided on the outer peripheral wall of the first rotating shaft 200 located inside the mounting cavity 100a. The second rotating shaft 300 is rotatably installed in the mounting cavity 100a. The second rotating shaft 300 is installed in the mounting cavity 100a. It has a second connecting section 310 extending from the second through hole 132. The outer peripheral wall of the second rotating shaft 300 is provided with a second helical gear 320. The second helical gear 320 is coaxially arranged with the rotation axis of the second rotating shaft 300. The first rotating shaft 200 is arranged parallel to the rotation axis of the second rotating shaft 300. The end face of the second connecting section 310 is provided with a second wire through hole 330. The outer peripheral wall of the second rotating shaft 300 located inside the mounting cavity 100a is provided with a second notch 340 communicating with the second wire through hole 330.

[0037] It should be noted that the first helical gear 220 and the second helical gear 320 can be integrally formed with the first rotating shaft 200 and the second rotating shaft 300, or they can exist independently and be set on the first rotating shaft 200 and the second rotating shaft 300 by means of sleeve, and can rotate with the rotation of the shaft. The specific placement of the first helical gear 220 and the second helical gear 320 on the rotating shaft is not specifically limited here.

[0038] For further details, please refer to Figure 1 and Figure 3 The third helical gear 400 is rotatably installed in the mounting cavity 100a. The third helical gear 400 meshes with the first helical gear 220 and the second helical gear 320 respectively. The third helical gear 400 is located between the first helical gear 220 and the second helical gear 320. With this arrangement, the meshing structure of the first helical gear 220, the second helical gear 320 and the third helical gear 400 can ensure that the first rotating shaft 200 and the second rotating shaft 300 rotate strictly synchronously. Moreover, the transmission connection method of helical gears is adopted. The helical tooth meshing line of the helical gears gradually transitions along the tooth width, which can realize the simultaneous meshing of multiple teeth. Furthermore, the helical tooth contact line of the helical gears is inclined at an angle relative to the tooth direction, which can extend the stress transmission path.

[0039] Furthermore, the wire 500 can extend into the first through hole 230 and exit through the first notch 240 and the second notch 340 to the second through hole 330. This through-type design forms a straight channel for the wire 500. The portion of the wire 500 located inside the hinge connector remains straight during rotation, thereby completely eliminating bending stress. The wire 500 will not bend or fold, fundamentally solving the problem of wire 500 breakage when connecting electronic devices on both sides of the hinge connector.

[0040] The swivel connector of the present invention has a first swivel 200 and a second swivel 300 on a housing 100. Both swivels are equipped with helical gears, and a third helical gear 400 is provided between the two helical gears. The third helical gear 400 meshes with the two helical gears on the swivels respectively. In this way, the rotation of one swivel can drive the other swivel to rotate synchronously. In addition, both swivels have wire holes, and the parts of the two swivels inside the housing 100 are provided with notches that communicate with the wire holes. With this configuration, the wire 500 can pass through the wire hole on the end face of one swivel, pass through the notch in the housing 100, then pass through the notch on the other swivel, and then pass through the wire hole on the end face of the other swivel. This through-through design forms a straight wire 500 channel. The part of the wire 500 inside the swivel connector always remains straight during rotation, thereby completely eliminating bending stress and preventing the wire 500 from bending or folding. This fundamentally solves the problem of wire 500 breakage when connecting electronic devices on both sides of the swivel connector.

[0041] To facilitate the connection of external devices on both sides of the rotating joint to the shaft connector, in some embodiments, the shaft connector further includes a first bracket 600 and a second bracket 610. One end of the first bracket 600 is connected to the outer peripheral wall of the first connecting section 210 and can rotate with the first rotating shaft 200. The other end of the first bracket 600 is used to connect to the external device. One end of the second bracket 610 is connected to the outer peripheral wall of the second connecting section 310 and can rotate with the second rotating shaft 300. The other end of the second bracket 610 is used to connect to the external device. With this configuration, the first bracket 600 and the second bracket form a device mounting interface, directly transmitting the torque of the external device to the rotating shaft, which can reduce intermediate transmission losses. In addition, the rigid connection between the bracket and the rotating shaft ensures accurate transmission of rotational motion and avoids positioning errors caused by connection gaps.

[0042] Furthermore, to prevent the first support 600 and the second support 610 from colliding during rotation, in this embodiment, both the first support 600 and the second support 610 are provided with limiting ribs 611 on the side facing the housing 100. The housing 100 is provided with arc-shaped limiting grooves 133 corresponding to the positions of the two limiting ribs 611, with the two limiting ribs 611 located within their respective arc-shaped limiting grooves 133. This arrangement allows the limiting ribs 611 and the arc-shaped limiting grooves 133 to cooperate in forming a rotational angle constraint, preventing the equipment connected to the first support 600 and the second support 610 from over-travel and colliding. Additionally, the ribs provide mechanical guidance when sliding within the grooves, significantly reducing the swing amplitude of the two supports and improving the operational stability of the equipment.

[0043] In some embodiments, the housing 100 is provided with a third through hole 141 and a fourth through hole 142 communicating with the mounting cavity 100a. The third through hole 141 is coaxially arranged with the first through hole 131, and the fourth through hole 142 is coaxially arranged with the second through hole 132. The first rotating shaft 200 has a third connecting section 250 extending from the third through hole 141, and the second rotating shaft 300 has a fourth connecting section 350 extending from the fourth through hole 142. The rotating shaft connector also includes a third bracket 620 and a fourth bracket 630. The third bracket 620 is connected to the third connecting section 250, and the fourth bracket 630 is connected to the fourth connecting section 350. The third connecting section 250 and the fourth connecting section 350, together with the first connecting section 210 and the second connecting section 310, form a dual-sided output structure, which can realize synchronous power output at both ends of the rotating shaft connector. Furthermore, the third bracket 620 and the fourth bracket 630 can provide additional equipment mounting points, avoiding the problem of excessive torque and unstable rotation caused by a single bracket support.

[0044] To dampen the rotation of the first shaft 200 and the second shaft 300 of the shaft connector, in this embodiment, the shaft connector further includes four sets of locking components 700. Two locking components 700 are respectively sleeved on the first connecting section 210 and the second connecting section 310, and the two locking components 700 lock the first bracket 600 and the second bracket 610 respectively, so that the rotation of the first bracket 600 and the second bracket 610 is resisted. The other two sets of locking components 700 are respectively sleeved on the third connecting section 250 and the fourth connecting section 350 and are located on the side of the third bracket 620 and the fourth bracket 630 facing the housing 100. The other two sets of locking components 700 lock the first shaft 200 and the second shaft 300 respectively, so that the rotation of the first shaft 200 and the second shaft 300 is resisted. With this configuration, the four locking components 700 apply independent and controllable damping forces to the bracket and the rotating shaft respectively. Users can independently adjust the rotational resistance according to their own equipment needs, thereby effectively suppressing the rotational inertia of the equipment installed on the bracket and ensuring smooth rotation and stopping.

[0045] Furthermore, in this embodiment, the first connecting segment 210 and the second connecting segment 310 are provided with threaded segments. The locking assembly 700 includes a cam 710, a spring 720, and a nut 730. The two cams 710 are respectively sleeved with the first connecting segment 210 and the second connecting segment 310. The first bracket 600 and the second bracket 610 are provided with a first positioning boss 612 on one side facing the cam 710. The two cams 710 are provided with a positioning recess 711 that cooperates with the first positioning boss 612 on the side facing the first positioning boss 612. The two springs 720 are respectively sleeved on the first connecting segment 210 and the second connecting segment 310 and are located between the cam 710 and the threaded segment. The two nuts 730 are respectively threadedly connected to the threaded segments of the first connecting segment 210 and the second connecting segment 310.

[0046] The meshing structure of the first positioning boss 612 and the positioning recess 711 provides maximum resistance at a specific angle. Specifically, the spring 720 provides elastic force to the cam 710. When the first positioning boss 612 and the positioning recess 711 are engaged, the first bracket 600 and the second bracket 610 stop at a fixed angle. At this time, rotating the first bracket 600 or the second bracket 610 requires a larger rotational lever to disengage the first positioning boss 612 and the positioning recess 711. When the first positioning boss 612 and the positioning recess 711 are disengaged, the cam 710 moves away from the bracket and presses the spring 720. Subsequently, when the first positioning boss 612 and the positioning recess 711 are engaged, the spring 720, due to the release of its own elastic force, can push the cam 710 to move closer to the bracket. In this embodiment, the thread adjustment of the nut 730 can also achieve stepless adjustment of the damping force to adapt to the inertia requirements of different equipment.

[0047] Similarly, in this embodiment, the third connecting segment 250 and the fourth connecting segment 350 are provided with threaded segments. The locking assembly 700 includes a cam 710, a spring 720, and a nut 730. The two cams 710 are respectively sleeved with the third connecting segment 250 and the fourth connecting segment 350. The housing 100 is provided with a second positioning boss 143 on the side facing the two cams 710. The side of the two cams 710 facing the second positioning boss 143 is provided with a positioning recess 711 that cooperates with the second positioning boss 143. The two springs 720 are respectively sleeved on the third connecting segment 250 and the fourth connecting segment 350 and are located between the cams 710 and the threaded segments. The two nuts 730 are respectively threadedly connected to the threaded segments of the third connecting segment 250 and the fourth connecting segment 350. Thus, the positioning recess 711 of the cam 710 of the two locking components 700 can apply resistance to the rotation of the shaft by engaging or misaligning with the second positioning boss 143 on the housing 100, and the nut 730 on the locking component 700 can also achieve stepless control of the damping force by adjusting the threaded sections of the third connecting section 250 and the fourth connecting section 350.

[0048] In addition, while the cam 710 abuts against the housing 100 to adjust the damping of the rotating shaft, the cam 710 in this embodiment also has an arc-shaped limiting notch 712. A limiting boss 144 is provided on the side of the housing 100 facing the cam 710. The limiting boss 144 is located in the arc-shaped limiting notch 712. The limiting boss 144 and the arc-shaped limiting notch 712 cooperate to form a rotation angle constraint, which can prevent the external equipment connected to the bracket from colliding due to overtravel rotation, and also protect the internal gear system.

[0049] In some embodiments, the housing 100 includes an upper housing 110, a lower housing 120, a first mounting member 130, a second mounting member 140, and a third mounting member 150. The upper housing 110 and the lower housing 120 are connected and enclose to form a mounting cavity 100a. The first mounting member 130, the second mounting member 140, and the third mounting member 150 are installed in the mounting cavity 100a. The first mounting member 130 and the second mounting member 140 are rotatably connected to the first rotating shaft 200 and the second rotating shaft 300, and the third mounting member 150 is rotatably connected to the third helical gear 400. Through the first mounting member 130, the second mounting member 140, and the third mounting member 150, the first rotating shaft 200, the second rotating shaft 300, and the third helical gear 400 can rotate in a preset position and a preset direction, ensuring the meshing accuracy of the gear set and reducing transmission noise caused by machining errors. Furthermore, the upper housing 110 and the lower housing 120 are detachably connected, which facilitates the threading of the wire 500 and subsequent maintenance. In addition, both the upper shell 110 and the lower shell 120 are provided with two through holes 111, which are located between the first rotating shaft 200 and the second rotating shaft 300. The first mounting member 130 and the second mounting member 140 are provided with threaded holes 134 corresponding to each through hole 111. The upper shell 110 and the lower shell 120 can also be connected together by screw fastening, which can enhance the torsional rigidity of the shell 100 and prevent the shell 100 from deforming.

[0050] In some embodiments, the swivel connector further includes a drive motor mounted on the outer surface of the housing 100. The output shaft of the drive motor extends into the mounting cavity 100a and is connected to the third helical gear 400. The drive motor is electrically connected to an external device. When the drive motor operates, it drives the third helical gear 400 to rotate, causing the first swivel 200 and the second swivel 300 to rotate in opposite directions. Thus, by integrating the drive motor outside the housing 100 and directly driving it through the third helical gear 400, the user can send programmed instructions to the drive motor using an external device (such as a PLC or microcontroller control system) to achieve fully automatic and precise unfolding and closing of the swivel connector. By adding a drive motor, the reverse synchronous rotation process of the first swivel 200 and the second swivel 300 is completely free from manual intervention. After the drive motor receives the electrical signal, the torque is precisely distributed to the two swivels through the torque diversion effect of the third helical gear 400, forming equal and opposite rotations. This not only ensures that the wire 500 maintains a zero-fold state within the channel but also endows the swivel connector with programmable motion capabilities. In this way, users can remotely control the connector to complete synchronous deflection, continuous rotation or dynamic trajectory tracking at preset angles by adjusting the motor's speed, direction and start-stop sequence, seamlessly connecting with the intelligent control needs of scenarios such as automated production lines and surgical robot joints.

[0051] The above description is only a part or preferred embodiment of the present invention. Neither the text nor the drawings should limit the scope of protection of the present invention. All equivalent structural transformations made using the content of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A hinge connector, characterized by The rotating shaft connector includes: The housing (100) has a mounting cavity (100a) and a first through hole (131) and a second through hole (132) communicating with the mounting cavity (100a), the first through hole (131) and the second through hole (132) being spaced apart; A first rotating shaft (200) is rotatably installed in the mounting cavity (100a). The first rotating shaft (200) has a first connecting section (210) extending from the first through hole (131). A first helical gear (220) is provided on the outer peripheral wall of the first rotating shaft (200). The first helical gear (220) is coaxially arranged with the rotating shaft of the first rotating shaft (200). A first wire-passing hole (230) is provided on the end face of the first connecting section (210). A first notch (240) communicating with the first wire-passing hole (230) is provided on the outer peripheral wall of the first rotating shaft (200) located inside the mounting cavity (100a). A second rotating shaft (300) is rotatably installed in the mounting cavity (100a). The second rotating shaft (300) has a second connecting section (310) extending from the second through hole (132). A second helical gear (320) is provided on the outer peripheral wall of the second rotating shaft (300). The second helical gear (320) is coaxially arranged with the rotation axis of the second rotating shaft (300). The first rotating shaft (200) and the rotation axis of the second rotating shaft (300) are arranged in parallel. A second wire-passing hole (330) is provided on the end face of the second connecting section (310). A second notch (340) communicating with the second wire-passing hole (330) is provided on the outer peripheral wall of the second rotating shaft (300) located inside the mounting cavity (100a). The third helical gear (400) is rotatably installed in the mounting cavity (100a). The third helical gear (400) meshes with the first helical gear (220) and the second helical gear (320) respectively. The third helical gear (400) is located between the first helical gear (220) and the second helical gear (320). A wire (500) extends into the first wire hole (230) and exits through the first notch (240), the second notch (340) and the second wire hole (330).

2. The rotating shaft connector according to claim 1, characterized in that, The rotating shaft connector further includes a first bracket (600) and a second bracket (610). One end of the first bracket (600) is connected to the outer peripheral wall of the first connecting segment (210) and can rotate with the first rotating shaft (200). The other end of the first bracket (600) is used to connect to an external device. One end of the second bracket (610) is connected to the outer peripheral wall of the second connecting segment (310) and can rotate with the second rotating shaft (300). The other end of the second bracket (610) is used to connect to an external device.

3. The rotating shaft connector according to claim 2, characterized in that, Both the first bracket (600) and the second bracket (610) are provided with limiting ribs (611) on the side facing the housing (100). The housing (100) is provided with arc-shaped limiting grooves (133) corresponding to the positions of the two limiting ribs (611). The two limiting ribs (611) are respectively located in the corresponding arc-shaped limiting grooves (133).

4. The rotating shaft connector according to claim 2, characterized in that, The housing (100) is provided with a third through hole (141) and a fourth through hole (142) communicating with the mounting cavity (100a). The third through hole (141) is coaxially arranged with the first through hole (131), and the fourth through hole (142) is coaxially arranged with the second through hole (132). The first rotating shaft (200) has a third connecting section (250) extending from the third through hole (141), and the second rotating shaft (300) has a fourth connecting section (350) extending from the fourth through hole (142). The rotating shaft connector further includes a third bracket (620) and a fourth bracket (630). The third bracket (620) is connected to the third connecting section (250), and the fourth bracket (630) is connected to the fourth connecting section (350).

5. The rotating shaft connector according to claim 4, characterized in that, The rotating shaft connector further includes four sets of locking components (700), wherein two of the locking components (700) are respectively sleeved on the first connecting section (210) and the second connecting section (310), and the two locking components (700) respectively lock the first bracket (600) and the second bracket (610) so that the rotation of the first bracket (600) and the second bracket (610) is resisted; The other two sets of locking components (700) are respectively sleeved on the third connecting section (250) and the fourth connecting section (350) and located on the side of the third bracket (620) and the fourth bracket (630) facing the housing (100). The other two sets of locking components (700) lock the first rotating shaft (200) and the second rotating shaft (300) respectively, so that the rotation of the first rotating shaft (200) and the second rotating shaft (300) is subject to resistance.

6. The shaft connector according to claim 5, characterized in that, The first connecting segment (210) and the second connecting segment (310) are provided with threaded segments. The locking assembly (700) includes a cam (710), a spring (720), and a nut (730). The two cams (710) are respectively sleeved with the first connecting segment (210) and the second connecting segment (310). The first bracket (600) and the second bracket (610) are provided with a first positioning boss (612) on one side facing the cam (710). The two cams (710) are provided with a positioning recess (711) that cooperates with the first positioning boss (612) on the other side. The two springs (720) are respectively sleeved on the first connecting segment (210) and the second connecting segment (310) and are located between the cam (710) and the threaded segment. The two nuts (730) are respectively threaded to the threaded segments of the first connecting segment (210) and the second connecting segment (310).

7. The rotating shaft connector according to claim 5, characterized in that, The third connecting section (250) and the fourth connecting section (350) are provided with threaded sections. The locking assembly (700) includes a cam (710), a spring (720), and a nut (730). The two cams (710) are respectively sleeved with the third connecting section (250) and the fourth connecting section (350). The housing (100) is provided with a second positioning boss (143) on the side facing the two cams (710). The two cams (710) are provided with a positioning recess (711) that cooperates with the second positioning boss (143) on the side facing the second positioning boss (143). The two springs (720) are respectively sleeved on the third connecting section (250) and the fourth connecting section (350) and are located between the cams (710) and the threaded sections. The two nuts (730) are respectively threaded to the threaded sections of the third connecting section (250) and the fourth connecting section (350).

8. The shaft connector according to claim 7, characterized in that, The cam (710) has an arc-shaped limiting notch (712), and the housing (100) has a limiting boss (144) on the side facing the cam (710), and the limiting boss (144) is located in the arc-shaped limiting notch (712).

9. The rotating shaft connector according to claim 1, characterized in that, The housing (100) includes an upper shell (110), a lower shell (120), a first mounting member (130), a second mounting member (140), and a third mounting member (150). The upper shell (110) and the lower shell (120) are connected and enclose to form the mounting cavity (100a). The first mounting member (130), the second mounting member (140), and the third mounting member (150) are installed within the mounting cavity (100a). The first mounting member (130) and the second mounting member (140) are connected... 0) The first rotating shaft (200) and the second rotating shaft (300) are rotatably connected, and the third mounting part (150) is rotatably connected to the third helical gear (400); the upper shell (110) and the lower shell (120) are each provided with two through holes (111), the through holes (111) are located between the first rotating shaft (200) and the second rotating shaft (300), and the first mounting part (130) and the second mounting part (140) are provided with threaded holes (134) corresponding to each of the through holes (111).

10. The rotating shaft connector according to claim 1, characterized in that, The rotating shaft connector also includes a drive motor, which is mounted on the outer surface of the housing (100). The output shaft of the drive motor extends into the mounting cavity (100a) and is connected to the third helical gear (400) for transmission. The drive motor is electrically connected to an external device. The operation of the drive motor drives the third helical gear (400) to rotate, causing the first rotating shaft (200) and the second rotating shaft (300) to rotate in opposite directions.

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