An automatic connection type universal electrical connector

Abstract

The application belongs to the technical field of electric appliance connection, and discloses an automatic connection type general electric connector, which comprises a protection box; a graduation box is installed on one side of the protection box; and a graduation device for driving the rotation of the graduation box is installed on the protection box. Through the cooperation of the connector and other structures, the non-used plug is not connected with any interface, which means that the current does not exist in other non-docking plugs, that is, there is an obvious physical interval between the remaining plugs and the sockets in the non-use state, so that the plugs are completely powered off, the problem of continuous heating of contact contact resistance is reduced, the oxidation rate of the contact surface is slowed down, data transmission is realized through the cooperation of the circuit board, current on-off and other electronic elements, the plugs are prevented from being in the powered-on state for a long time, and the problem of heat accumulation in the existing equipment is avoided, so that the softening of the plastic parts such as the shell and the insulating layer is caused, and even the problem of fire is caused.

Description

Technical Field

[0001] This invention belongs to the field of electrical connection technology, specifically an automatic connection type universal electrical connector. Background Technology

[0002] Universal electrical connectors are standardized electronic components used to achieve circuit connections. They are widely used in signal transmission and power distribution scenarios between various electronic devices, circuit modules, and electrical systems. These connectors achieve separable electrical connections through the mating of plugs and sockets, establishing stable electrical paths between different devices and ensuring the integrity and reliability of signal transmission. Universal electrical connectors are not limited to specific application scenarios or device types, possessing broad adaptability and meeting the circuit connection needs of various fields such as consumer electronics, industrial control, and communication equipment. In scenarios involving multiple devices, expansion docks or multi-port connectors are typically used to expand the number of interfaces, arranging multiple interfaces in parallel within the same housing, and achieving electrical connections with each device through internal conductive paths.

[0003] For example, Chinese invention patent application number CN202410157314.6, a connector-oriented expansion dock; This invention discloses a connector-oriented expansion dock, comprising a main housing, a main control board installed inside the main housing, and multiple interface components rotatably mounted on the main control board. Each interface component is connected to the main control board via a flexible flat cable. A rotation drive mechanism is disposed in each interface component, and each rotation drive mechanism has a power drive head located on the plug-in end side of the interface component. When the interface component is perpendicular to the front end face of the main housing, the power drive head extends outside the interface component, using the rotation of the interface component as the orientation indicator for the external device. In this invention, the user can quickly find the corresponding interface position according to the device's usage direction, quickly identify the connector position of the external device, and reset the interface component with one hand. The reset process automatically separates the external device connector, making operation convenient, quickly locating the connector position, and reducing misoperation.

[0004] In multi-device sharing scenarios, all interfaces in a docking station or multi-port connector remain in contact with the internal conductive path at all times. Even if an interface is not currently in use, its contacts remain conductive. This continuous conductivity causes the contact resistance of unused interfaces to persist for a long time. Under non-use conditions, the heat generated by the contact resistance continues to accumulate inside the housing, accelerating the aging of the insulation material and the oxidation of the contact surface. As the oxide layer on the contacts thickens, the contact resistance further increases, creating a vicious cycle of heat generation and oxidation. This leads to a decrease in signal transmission quality and a deterioration in connection stability. In severe cases, it can cause poor contact or open circuit failure, affecting the normal operation of the equipment and shortening the lifespan of the connector. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides an automatic connection universal electrical connector, which solves the problem that in scenarios where multiple devices share the same interface, even if a certain interface is not currently in use, its contacts still remain connected to the conductive path. The heat generated by the contact resistance continues to accumulate inside the housing, accelerating the aging of the insulation material, increasing the contact resistance, and resulting in a decrease in signal transmission quality and a deterioration in connection stability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic connection type universal electrical connector, including a protective housing; An indexing box is installed on one side of the protective box, and an indexer for driving the indexing box to rotate is installed on the protective box. The outer side of the indexing box is provided with a set of two mating interfaces, and each of the two mating interfaces is equipped with a limiting mechanism for fixing the connector. The protective box is provided with a retention groove for the connector contact part to enter. A bearing plate is installed on the side of the limiting mechanism, and the limiting mechanism includes a spring telescopic rod. The other side of the protective box is equipped with a connector for insertion. The protective box contains a connector. The connector includes a guide cylinder rotatably mounted inside the protective box and concentrically arranged with the mating interface. Two limiting shafts that can move through the carrier plate are symmetrically arranged on the upper and lower edges of the mating interface. The inside of the guide cylinder is connected to a guide ring through a closed-loop wave-shaped guide groove. Two movable limiting cylinders that are symmetrically installed on the outer side of the guide ring and are engaged with the inside of the protective box are installed on the outer side of the guide ring. Two tension springs are symmetrically installed on the outer side of the guide ring. The end of the tension spring is equipped with a hook 1, and two wedge blocks 2 are symmetrically and movably inserted through the upper and lower ends of the protective box. The inclined surface of the wedge block 2 is movably engaged with a wedge block 3, and the bottom of the wedge block 3 is equipped with a hook 2 that engages with the hook 1. A locking plate is symmetrically and movable on the side of the support plate. The locking plate is connected to the support plate through a spring plate. After the locking plate is lowered, it can engage with one side of the hook.

[0007] Preferably, the connector further includes a second spring telescopic rod installed inside each limiting cylinder, and the tension spring is sleeved on the outer periphery of the second spring telescopic rod.

[0008] Preferably, any of the limiting mechanisms includes a carrier cylinder that is movably engaged inside one of the two interfaces, and the side of the carrier cylinder is connected to the protective box via a set of spring plates arranged in a circumferential array; A wedge ring is installed on the outer periphery of the bearing cylinder, and a set of wedge blocks are radially slidably engaged on the bearing plate. The inclined surface of the wedge ring is in contact with the inclined surface of the wedge block. A limiting plate is installed on the inner wall of each wedge block, and a spring plate is installed on the outer side of the limiting plate to abut against the inner wall of the bearing cylinder.

[0009] Preferably, the inclined surface of the wedge ring is movably engaged with the inclined surface of the first wedge block, and the first spring telescopic rod is fixedly installed on the first spring plate.

[0010] Preferably, each of the limiting plates is combined into a circle, and a set of reverse teeth is provided at equal intervals on the inner wall of the limiting plate.

[0011] Preferably, the indexing device includes a main shaft rotatably mounted inside the protective housing, and the bottom end of the main shaft is connected to a worm gear via a universal joint; A driven shaft is rotatably mounted on the side of the protective box, and the driven shaft is connected to the indexing box through a limiter; A worm gear that meshes with the worm is installed on the outer periphery of the driven shaft.

[0012] Preferably, the top of the spindle extends to the top of the protective box and is equipped with a knob, the edge of which is composed of multiple arcs, and the bottom of the worm gear is rotatably mounted inside the protective box.

[0013] Preferably, the indexer further includes a drive belt, and the driven shaft is connected to the guide cylinder via the drive belt.

[0014] Preferably, the limiter includes a retention box fixed inside the indexing box, the inner wall of the retention box is fixed with a set of drive plates arranged in a circumferential array, and the outer periphery of the driven shaft is equipped with a set of spring plates arranged in a circumferential array.

[0015] Preferably, each pair of symmetrically arranged spring plates forms a group, and each spring plate is located between each pair of drive plates. Each group of spring plates is arranged in a circumferential array outside the driven shaft.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the use of connectors and other structures, ensures that unused plugs are not connected to any interfaces. This means that current will not exist in other unconnected plugs. In other words, when not in use, there is a clear physical distance between the remaining plugs and the socket, completely cutting off power and reducing the problem of continuous heating due to contact resistance. It also slows down the oxidation rate of the contact surface. Instead of relying on circuit boards, current switching, and other electronic components to achieve data transmission, this invention avoids the plugs being in a powered state for a long time, which can lead to heat accumulation in existing equipment and cause softening of plastic parts such as the outer shell and insulation layer, or even fire.

[0017] This invention, through the cooperation of a limiting mechanism and other structures, locks the plug in place when it enters the circular hole formed by the limiting plate, thanks to the elastic force generated by the spring plate. The friction generated by the movable engagement of the wedge block and the bearing plate also hinders the movement of the wedge block, thus better completing the locking function. At the same time, it can also accommodate plugs of different sizes, improving the device's flexibility in meeting the docking needs of multiple device scenarios. Furthermore, the reverse teeth can prevent the plug from shifting due to abnormal external impacts or contact, thus preventing docking failure. It can also prevent the plug from detaching from the device due to external pulling of the corresponding wires, further improving the stability of the device.

[0018] This invention, through the coordination of structures such as an indexing device, ensures that after docking, the worm and worm wheel have a self-locking mechanism. The worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm. Therefore, even if the indexing box is subjected to external scraping or abnormal impact, causing it to rotate, the rotational force will be transmitted to the worm wheel through the limit switch and the driven shaft. The worm wheel, restricted by the worm, cannot rotate. Thus, after docking, the automatic locking device eliminates the need for additional spring clips, electromagnetic locks, or other locking mechanisms. The function of maintaining docking stability is undertaken by the worm and worm wheel, reducing the number of structures required. Attached Figure Description

[0019] Figure 1 This is a first schematic diagram of the appearance structure of the present invention; Figure 2 This is a second schematic diagram of the appearance structure of the present invention; Figure 3 This is a first schematic diagram of the internal structure of the protective box of the present invention; Figure 4 This is a second schematic diagram of the internal structure of the protective box of the present invention; Figure 5 This is a schematic diagram of the internal structure of the guide cylinder of the present invention; Figure 6 This is a schematic diagram showing the mating structure of the indexer and connector of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram illustrating the structural cooperation between the driven shaft and the indexing box via a limiter in this invention. Figure 9 This is a schematic diagram showing the cooperation between the limiting mechanism and the connector structure of the present invention; Figure 10 This is a schematic diagram showing the second working position of the limiting cylinder and the bearing plate of the present invention; Figure 11 This is a schematic diagram showing the disassembled structure of the indexer and connector of the present invention; Figure 12 This is a third schematic diagram of the internal structure of the protective box of the present invention.

[0020] In the diagram: 1. Protective box; 11. Interface 1; 12. Retention groove; 2. Indexing box; 21. Interface 2; 22. Limiting groove; 3. Indexer; 31. Main spindle; 32. Knob; 33. Universal joint; 34. Worm gear; 35. Driven shaft; 36. Worm wheel; 37. Drive belt; 4. Limiting mechanism; 41. Bearing cylinder; 411. Spring plate 1; 42. Wedge ring; 43. Wedge block 1; 431. Limiting plate; 432. Spring plate 2 ; 44. Spring telescopic rod one; 5. Connector; 51. Guide cylinder; 511. Guide groove; 52. Guide ring; 521. Spring telescopic rod two; 522. Tension spring; 523. Limiting cylinder; 53. Hook one; 54. Wedge block two; 55. Wedge block three; 56. Hook two; 57. Limiting shaft; 6. Limiter; 61. Retention box; 62. Drive plate; 63. Spring plate three; 7. Bearing plate; 71. Locking plate; 72. Spring plate four. Detailed Implementation

[0021] The technical solutions of 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 some embodiments of the present invention, and not all embodiments. 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.

[0022] like Figures 1 to 12 As shown, the present invention provides an automatic connection type universal electrical connector, including a protective housing 1; A dividing box 2 is installed on one side of the protective box 1, and an indexer 3 for driving the dividing box 2 to rotate is installed on the protective box 1; The outer side of the indexing box 2 is provided with a set of two interfaces 21 arranged in a circumferential array. Each interface 21 is equipped with a limiting mechanism 4 for fixing the connector. The protective box 1 is provided with a retention groove 12 for the connector contact part to enter. A bearing plate 7 is installed on the side of the limiting mechanism 4. The limiting mechanism 4 includes a spring telescopic rod 44. On the other side of the protective box 1, there is a connector 11 for insertion; Connector 5 is installed inside the protective box 1; The connector 5 includes a guide cylinder 51 that is rotatably mounted inside the protective box 1 and is concentrically arranged with the interface 11. The interface 11 has two limiting shafts 57 that can move through the support plate 7 and are symmetrically arranged on the upper and lower edges. The guide cylinder 51 is connected to a guide ring 52 through a closed-loop wave-shaped guide groove 511. Two movable limiting cylinders 523 that are symmetrically installed on the outer side of the guide ring 52 and are connected to the inside of the protective box 1 are also installed on the outer side of the guide ring 52. Two tension springs 522 are symmetrically installed on the outer side of the guide ring 52. The end of the tension spring 522 is equipped with a hook 53. The upper and lower ends of the protective box 1 are symmetrically connected by two wedge blocks 54. The inclined surface of the wedge block 54 is movably engaged with a wedge block 55. The bottom of the wedge block 55 is equipped with a hook 56 that engages with the hook 53. A locking plate 71 is symmetrically and movable on the side of the bearing plate 7. The locking plate 71 is connected to the bearing plate 7 through a spring plate 4 72. After the locking plate 71 is lowered, it can be engaged with the side of the hook 1 53.

[0023] Using the above method: the device is fixed in position with bolts, and the plug part can enter the interior of the protective box 1 through the interface 11. Then, each plug that needs to be connected is fastened by the limiting mechanism 4. It should be noted that when the device is not in use, the indexing box 2 is rotated by the indexer 3 so that no limit mechanism 4 will be aligned with the first interface 11, that is, all the second interfaces 21 cannot be concentric with the first interface 11. After the limiting mechanism 4 has completed the fastening work, the indexing box 2 is rotated by the indexer 3 so that the corresponding limiting mechanism 4 and its plug are aligned with the interface 11. During this period, the indexer 3 will also drive the guide cylinder 51 to rotate. Since the position of the guide ring 52 is movably engaged with the protective box 1 by the hook 53, the guide ring 52 moves horizontally by being restricted by the limit cylinder 523 and the guide groove 511. The guide ring 52 is provided with a plurality of support blocks on its outer periphery for accessing the guide groove 511, so that the guide ring 52 can slide smoothly inside the guide groove 511 when the guide cylinder 51 rotates. Among them, the guide ring 52 will pull the hook 1 53 through the tension spring 522. However, since the hook 1 53 and the hook 2 56 are locked together, and the position of the hook 2 56 is restricted by the wedge block 2 54 and the hook 2 56, the end of the hook 1 53 cannot move, but the tension spring 522 will be stretched and store elastic force. However, when one of the interfaces 21 is rotated to be concentric with interface 11, the plug on the limiting mechanism 4 and the socket on interface 11 are on the same axis, i.e. Figure 7 As shown, the spring telescopic rod 44 immediately pushes the wedge block 54, causing the wedge block 55 and the hook 56 at its bottom to descend, and the hook 56 can no longer engage with the hook 53; During this process, wedge block 3 55 will also push locking plate 71 down and compress spring plate 4 72, so that locking plate 71 is engaged with hook 1 53. That is, the end of tension spring 522 is no longer locked by hook 1 53 and hook 2 56, but is connected to the bearing plate 7 through locking plate 71 and hook 1 53. The tension stored in tension spring 522 will pull the bearing plate 7 and its limiting mechanism 4 and plug to move and finally complete the docking with the socket. The limiting shaft 57 passes through the bearing plate 7, so that the position of the bearing plate 7 is restricted and it will not rotate or shift due to pulling, so as to avoid docking failure. In the initial state where the plug is not connected, its plastic part is fixed by the limiting mechanism 4, and its metal part, that is, the end of the contact point, is located at the end of the guide tube 51, but the two do not contact each other. Therefore, when the tension spring 522 pulls the plug, it can be inserted into the socket more completely without the situation of not being able to connect. It is important to note that the plugs on the other limit mechanisms 4 are not connected to any interface, which means that current will not exist in the other unconnected plugs. In other words, when not in use, there is a clear physical distance between the other plugs and the socket, which completely disconnects the power, reduces the problem of continuous heating of the contact resistance, and slows down the oxidation rate of the contact surface. When the plug and socket are no longer needed, the guide cylinder 51 is rotated again via the indexer 3. Since the guide groove 511 is a closed-loop wave shape, when rotating in the same direction, the guide cylinder 51 can drive the guide ring 52 to move in the opposite direction via the guide groove 511. Figure 10 As shown, the bearing plate 7 is provided with a slot for the edge of the limiting cylinder 523 to enter. Therefore, when the tension spring 522 pulls the bearing plate 7 and the plug fixed by its upper limit mechanism, it can avoid the situation where the plug is too far from the socket and cannot be connected. When the guide ring 52 moves in the opposite direction, it will push the hook 53 through the solid part at the bottom of the limiting cylinder 523 and the end of the spring telescopic rod 521. During this period, the hook 53 pushes the bearing plate 7 back to the initial position through the locking plate 71, instead of using the tension spring 522 as the pushing medium, thereby improving the stability of the device when it is reset and preventing the plug from failing to return to the initial position. During this period, because the spring telescopic rod 44 on the limiting mechanism 4 remains in the hole where the wedge block 54 is located, it will not rotate. Figure 7As shown, when the tension spring 522 pushes the locking plate 71 back to its initial position through the hook 1 53, the spring plate 4 72 pushes the locking plate 71 and the hook 2 56 on it back to its initial position. The wedge block 3 55 pushes the wedge block 2 54 to move with its inclined surface, forcing the end of the spring telescopic rod 1 44 to exit the hole where the wedge block 2 54 is located. That is, the locking plate 71 is no longer engaged with the hook 1 53. Instead, the hook 2 56 is fastened and fixed to the hook 1 53. Therefore, the bearing plate 7 is no longer connected to the hook 1 53 through any structure. The bearing plate 7 and the limiting mechanism 4 and the plug on it are all in a free state. By continuing to rotate the guide cylinder 51 and the indexing box 2 through the indexer 3, the guide ring 52 can be driven to move toward the docking interface 11 again, while storing the elastic force for the tension spring 522 to prepare for the next docking. In this solution, once the corresponding plug no longer needs to be connected to the socket, it can be physically disconnected directly, rather than through the cooperation of electronic components such as circuit boards and current switching to achieve data transmission. This avoids the plug being in a powered state for a long time and the heat accumulation in the existing equipment, which could cause the plastic parts such as the shell and insulation layer to soften or even cause a fire.

[0024] like Figures 1-12 As shown, the connector 5 also includes a second spring telescopic rod 521 installed inside each limiting cylinder 523, and a tension spring 522 sleeved on the outer periphery of the second spring telescopic rod 521.

[0025] The above solution is adopted: During the extension and retraction of the tension spring 522, in order to prevent the tension spring 522 from undergoing metal fatigue and resulting in overall deformation after long-term work, it is sleeved on the spring extension rod 521 to prevent bending during retraction and thus affecting the docking work. The main point to note is that, since the spring telescopic rod 521 is also telescopic, it will not excessively affect the distance that the tension spring 522 pulls on the bearing plate 7, thereby avoiding fatal errors such as incomplete docking and poor contact.

[0026] like Figures 1-12 As shown, any limiting mechanism 4 includes a carrier cylinder 41 that is movably engaged inside one of the interfaces 21. The side of the carrier cylinder 41 is connected to the protective box 1 through a set of spring plates 411 arranged in a circumferential array. The inclined surface of the wedge ring 42 is movably engaged with the inclined surface of the wedge block 43, and the spring telescopic rod 44 is fixedly installed on the spring plate 411.

[0027] A wedge ring 42 is installed on the outer periphery of the bearing cylinder 41. A set of wedge blocks 43 are radially slidably engaged on the bearing plate 7. The inclined surface of the wedge ring 42 fits against the inclined surface of the wedge block 43. A limiting plate 431 is installed on the inner wall of each wedge block 43. A spring plate 432 that abuts against the inner wall of the bearing cylinder 41 is installed on the outer side of the limiting plate 431.

[0028] Each limiting plate 431 is combined into a circle, and a set of reverse teeth is provided at equal intervals on the inner wall of the limiting plate 431.

[0029] Using the above scheme: In the initial state, the second spring plate 432 abuts against the inner wall of the bearing cylinder 41, so that each limiting plate 431 merges into a whole circle, and also has radial movement pressure. Therefore, when the plug enters the circular hole formed by the limiting plate 431, it can be locked by the elastic force generated by the second spring plate 432. At the same time, the friction generated by the wedge block 43 and the bearing plate 7 will also hinder the movement of the wedge block 43, thereby better completing the locking work. It can also adapt to plugs of different sizes, improving the device's flexible docking requirements for adapting to multiple equipment scenarios. Among them, the reverse teeth on the limiting plate 431 can prevent the plug from shifting due to abnormal external impact or contact, causing docking failure. At the same time, it can also prevent the plug from being pulled by the corresponding line of the plug, causing the plug to detach from the device, thus further improving the stability of the device. When the plug needs to be removed, simply press the bearing cylinder 41 to make the wedge ring 42 and the wedge block 43 engage through the inclined surface, causing the wedge block 43 to rise. At the same time, the limiting plate 431 at its bottom will also release the fixing work on the plug, further improving the ease of operation of the device.

[0030] It is important to note that, by Figure 1 and Figure 3 As can be seen, there are multiple limiting mechanisms 4, so multiple plugs of different models can be installed in the corresponding limiting mechanisms 4. When a corresponding plug is needed, the indexing box 2 can be rotated by the indexer 3 until the corresponding limiting mechanism 4 and the interface 11 are concentric. Then the connector 5 can perform docking. The remaining unused connectors are fixed by the limiting mechanism and have no connection relationship. They are not powered, which further improves the flexibility and adaptability of the device, enabling it to be used for docking of different models and multiple quantities.

[0031] like Figures 1-12 As shown, the indexer 3 includes a main shaft 31 rotatably mounted inside the protective box 1, and the bottom end of the main shaft 31 is connected to a worm gear 34 via a universal joint 33; A driven shaft 35 is rotatably mounted on the side of the protective box 1, and the driven shaft 35 is connected to the indexing box 2 through a limiter 6; A worm wheel 36 that meshes with the worm 34 is mounted on the outer periphery of the driven shaft 35.

[0032] The top of the spindle 31 extends to the top of the protective box 1 and is equipped with a knob 32. The edge of the knob 32 is composed of multiple arcs. The bottom of the worm gear 34 is rotatably installed inside the protective box 1.

[0033] Using the above scheme: when the indexing box 2 needs to rotate, the main shaft 31 can be rotated, so that the main shaft 31 drives the worm 34 to rotate through the universal joint 33, the worm 34 drives the worm wheel 36 and its driven shaft 35 to rotate, and the driven shaft 35 finally drives the indexing box 2 to rotate through the limit switch 6. This achieves the purpose of indexing box 2 in adjusting each plug. After the docking is completed, indexer 3 is no longer used. Because worm 34 and worm wheel 36 have a self-locking mechanism, that is, worm 34 can drive worm wheel 36 to rotate, while worm wheel 36 cannot drive worm 34 to rotate, so even if indexing box 2 is subjected to external scraping or abnormal impact, causing it to rotate, the rotational force will be transmitted to worm wheel 36 through limiter 6 and driven shaft 35. Worm wheel 36 is restricted by worm 34 and cannot rotate. Once docking is complete, the automatic locking device eliminates the need for additional locking mechanisms such as spring clips and electromagnetic locks. The function of maintaining stable docking is undertaken by the worm gear 34 and worm wheel 36, reducing the number of structures.

[0034] like Figures 1-12 As shown, the indexer 3 also includes a drive belt 37, and the driven shaft 35 is connected to the guide cylinder 51 via the drive belt 37.

[0035] The limiter 6 includes a retaining box 61 fixed inside the indexing box 2. A set of drive plates 62 arranged in a circumferential array are fixedly installed on the inner wall of the retaining box 61, and a set of spring plates 63 arranged in a circumferential array are installed on the outer periphery of the driven shaft 35.

[0036] Each pair of symmetrically arranged spring plates 63 forms a group, and each spring plate 63 is located between each pair of drive plates 62. Each group of spring plates 63 is arranged in a circumferential array outside the driven shaft 35.

[0037] Using the above scheme: During the rotation of the driven shaft 35, the guide cylinder 51 will be rotated through the transmission belt 37, thereby realizing the movement of the guide ring 52; When the docking operation starts, the spring telescopic rod 44 is simultaneously located in the hole where the wedge block 54 is located, thus locking the positions of the spring telescopic rod 44 and the bearing cylinder 41. Therefore, the indexing box 2 cannot be moved. However, since the driven shaft 35 still needs to drive the guide cylinder 51 to rotate to realize the storage and release of the tension spring 522, after the indexing box 2 cannot be moved, the driven shaft 35 will drive the spring plate 63 on it to disengage from the drive plate 62. Until the docking operation is completed, the position of the limiting mechanism 4 is no longer restricted. The driven shaft 35 can continue to rotate and drive the drive plate 62 and the indexing box 2 to rotate through the spring plate 63. This improves the smoothness of the device's operation.

[0038] Working principle and usage process of this invention: The device is fixed in position by bolts, and the plug part can enter the interior of the protective box 1 through the interface 11. Then, when the plug enters the circular hole formed by the limiting plate 431, it is locked by the elastic force generated by the spring plate 432. After tightening is completed, the main shaft 31 is rotated to drive the worm wheel 36 and its driven shaft 35 to rotate through the worm 34. The driven shaft 35 drives the indexing box 2 to rotate through the limiter 6, thereby achieving the purpose of adjusting the plug. During this period, the indexer 3 drives the guide cylinder 51 to rotate, and the guide ring 52 moves horizontally by being restricted by the limiting cylinder 523 and the guide groove 511; Among them, the guide ring 52 pulls the hook 53 through the tension spring 522. However, since the hook 53 and the hook 56 are locked together, the end of the hook 53 cannot move, but the tension spring 522 will be stretched and store elastic force. However, when one of the interfaces 21 is rotated to be concentric with interface 11, the plug on the limiting mechanism 4 and the socket on interface 11 are on the same axis. The spring telescopic rod 44 immediately pushes the wedge block 54, causing the wedge block 55 and the hook 56 at its bottom to descend. The hook 56 cannot engage with the hook 53. During this process, wedge block 3 55 pushes locking plate 71 to engage with hook 1 53, and tension spring 522 pulls bearing plate 7 and its limiting mechanism 4 and plug to move and finally complete the docking with the socket. When the plug and socket are not connected, the guide cylinder 51 is rotated again through the indexer 3, which drives the guide ring 52 to move in the opposite direction and pushes the bearing plate 7 and its limiting mechanism 4 to move to the initial position. The plug on the limiting mechanism 4 is then disengaged from the socket. When the tension spring 522 pushes the locking plate 71 back to the initial position through the hook 1 53, the spring plate 4 72 pushes the locking plate 71 and its hook 2 56 back to the initial position. The wedge block 3 55 pushes the wedge block 2 54 to move with the inclined plane, forcing the end of the spring telescopic rod 1 44 to exit the hole where the wedge block 2 54 is located. The bearing plate 7, its limiting mechanism 4 and the plug are all in a free state.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic connection type universal electrical connector, characterized in that: The system includes a protective box (1); an indexing box (2) is installed on one side of the protective box (1), and an indexer (3) for driving the indexing box (2) to rotate is installed on the protective box (1); a set of two coupling interfaces (21) are arranged in a circumferential array on the outer side of the indexing box (2), and a limiting mechanism (4) for fixing the connector is installed in each of the two coupling interfaces (21); a retaining groove (12) for the connector contact part to enter is provided on one side of the protective box (1); a bearing plate (7) is installed on the side of the limiting mechanism (4), and the limiting mechanism (4) includes a spring telescopic rod (44); a connector for the insertion of the connector is installed on the other side of the protective box (1). The first interface (11) is provided; a connector (5) is installed inside the protective box (1); the connector (5) includes a guide cylinder (51) rotatably mounted inside the protective box (1) and concentrically arranged with the first interface (11); two limiting shafts (57) that can move through the bearing plate (7) are symmetrically arranged on the upper and lower edges of the first interface (11); a guide ring (52) is connected inside the guide cylinder (51) through a closed-loop wave-shaped guide groove (511); two limiting cylinders (523) that are symmetrically mounted on the upper and lower sides of the guide ring (52) and ... Two tension springs (522); hook 1 (53) is installed at the end of the tension spring (522); two wedge blocks 2 (54) are symmetrically and movably inserted through the upper and lower ends of the protective box (1); wedge block 3 (55) is movably engaged on the inclined surface of wedge block 2 (54); hook 2 (56) is installed at the bottom of wedge block 3 (55) and engages with hook 1 (53); a locking plate (71) is symmetrically and movably engaged on the side of the bearing plate (7); the locking plate (71) is connected to the bearing plate (7) through spring plate 4 (72); the locking plate (71) can engage with the side of hook 1 (53) after it descends; the limiting mechanism ( 4) Includes a carrier cylinder (41) that is movable and snapped into one of the two interfaces (21). The side of the carrier cylinder (41) is connected to the protective box (1) through a set of spring plates (411) arranged in a circumferential array. A wedge ring (42) is installed on the outer periphery of the carrier cylinder (41). A set of wedge blocks (43) is radially slidably snapped into the carrier plate (7). The inclined surface of the wedge ring (42) is in contact with the inclined surface of the wedge block (43). A limiting plate (431) is installed on the inner wall of each wedge block (43). A spring plate (432) that abuts against the inner wall of the carrier cylinder (41) is installed on the outer side of the limiting plate (431).

2. The automatic connection type universal electrical connector according to claim 1, characterized in that: The connector (5) also includes a second spring telescopic rod (521) installed inside each limiting cylinder (523), and the tension spring (522) is sleeved on the outer periphery of the second spring telescopic rod (521).

3. The automatic connection type universal electrical connector according to claim 1, characterized in that: The inclined surface of the wedge ring (42) is movably engaged with the inclined surface of the wedge block (43), and the spring telescopic rod (44) is fixedly installed on the spring plate (411).

4. The automatic connection type universal electrical connector according to claim 1, characterized in that: Each of the limiting plates (431) is combined into a circle, and a set of reverse teeth is provided at equal intervals on the inner wall of the limiting plate (431).

5. The automatic connection type universal electrical connector according to claim 1, characterized in that: The indexer (3) includes a spindle (31) rotatably mounted inside the protective box (1), and the bottom end of the spindle (31) is connected to a worm gear (34) via a universal joint (33). A driven shaft (35) is rotatably mounted on the side of the protective box (1), and the driven shaft (35) is connected to the indexing box (2) through a limiter (6); A worm wheel (36) that meshes with the worm (34) is mounted on the outer periphery of the driven shaft (35).

6. The automatic connection type universal electrical connector according to claim 5, characterized in that: The top of the spindle (31) extends to the top of the protective box (1) and is fitted with a knob (32), the edge of which is composed of multiple arcs, and the bottom of the worm (34) is rotatably mounted inside the protective box (1).

7. The automatic connection type universal electrical connector according to claim 6, characterized in that: The indexer (3) also includes a drive belt (37), and the driven shaft (35) is connected to the guide cylinder (51) via the drive belt (37).

8. The automatic connection type universal electrical connector according to claim 6, characterized in that: The limiter (6) includes a retaining box (61) fixed inside the indexing box (2). The inner wall of the retaining box (61) is fixed with a set of drive plates (62) arranged in a circumferential array. The outer periphery of the driven shaft (35) is equipped with a set of spring plates (63) arranged in a circumferential array.

9. The automatic connection type universal electrical connector according to claim 8, characterized in that: Each pair of symmetrically arranged spring plates (63) forms a group, and each spring plate (63) is located between each pair of drive plates (62). Each group of spring plates (63) is arranged in a circumferential array outside the driven shaft (35).

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