Pluggable medium-voltage shore power connector

Abstract

The utility model relates to a plug-in type medium-voltage shore power connector, which comprises a positioning ring I and a positioning ring II which are sleeved on the outer side of a socket, a plurality of locking blocks are arranged between the positioning ring I and the positioning ring II, and the plurality of locking blocks are arranged around the central axis of the socket at equal intervals. In addition, one end of the plug close to the socket is provided with a locking groove. Based on the structure, when the plug is inserted into the positioning ring II and the locking block is located at one end close to the central axis of the driving ring, the locking block can be inserted into the locking groove. And at the moment, the position of the locking groove is effectively restrained by embedding the locking block and the locking groove, so that the locking function between the socket and the plug is realized. According to the device, through the structural design, the structural strength and the locking safety are enhanced, the user experience is improved, and operation convenience and reliability are achieved.

Description

Technical Field

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[0001] The utility model relates to the technical field of connectors, and particularly relates to a plug - and - play medium - voltage shore - power connector. Background Art

[0002] To reduce the air - pollution emissions generated by ships during berthing due to the use of auxiliary engines, the application of port shore - power technology has become an inevitable trend in the industry development. Port shore - power technology involves transmitting clean power through the local power grid to the port substation, and during the period when the ship is docked at the wharf, supplying power to the ship through a dedicated power - connection device in the shore - power system.

[0003] Currently, the medium - voltage shore - power system mainly consists of a cable plug and a socket. Among them, the hole - type socket is usually installed in the socket box on the shore side, while the pin - type socket is fixed in the shore - power cabinet on the ship. The pin - type or hole - type plugs are respectively installed at both ends of the cable supporting the medium - voltage shore - power system. During actual operation, one end of the cable (equipped with a pin - type plug) needs to be inserted into the socket box on the shore side, and the other end (equipped with a hole - type plug) needs to be inserted into the shore - power cabinet on the ship to achieve rapid shore - power supply. However, due to the volatility of the marine environment, the cable is prone to loosen or even fall off; at the same time, the negligence of the operator or one - hand plugging and unplugging operations may cause damage to the plug.

[0004] In view of the above problems, this research proposes a design concept of a medium - voltage shore - power connector, which can achieve the locking function between the socket and the plug to improve the stability and safety of the system. Summary of the Invention

[0005] Aiming at the defects existing in the prior art, the utility model proposes a plug - and - play medium - voltage shore - power connector. This connector has a locking mechanism between the socket and the plug, thereby enhancing the stability and safety of the system. This design effectively solves the problem that the cable in the prior art is prone to loosen or even fall off.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A pluggable medium-voltage shore power connector includes a socket and a plug. A positioning ring I is sleeved on the outer side of the socket and coaxially fixedly connected to the socket. A driving ring is coaxially disposed on the end of the positioning ring I near the plug. Multiple driving slots are equidistantly arranged around the central axis of the driving ring, with unequal distances between the two ends of each driving slot and the central axis of the driving ring. The inner wall of each driving slot has a smooth transition. Two driving rings are present, and multiple locking blocks are disposed between the two driving rings. Each locking block corresponds to one of the driving slots, and the end of each locking block away from the central axis of the driving ring is fixedly connected to the socket. A follower shaft is connected, and the central axis of the follower shaft is parallel to the central axis of the drive ring. A positioning ring II is provided near the end of the drive ring close to the plug. The positioning ring II is coaxially and fixedly connected to the socket. The positioning ring I and positioning ring II are respectively provided with multiple positioning grooves near their ends. The multiple positioning grooves correspond one-to-one with multiple drive grooves. The center line of each positioning groove coincides with the radius line of the drive ring. The axial end of each follower shaft is inserted into the drive groove and the positioning groove on the same side. A locking groove is provided near the end of the plug close to the socket. When the plug is inserted into the positioning ring II and the follower shaft is located at the end of the drive groove close to the central axis of the drive ring, the locking block is inserted into the locking groove.

[0008] Preferably, the outer diameter of the drive ring is smaller than the outer diameters of positioning ring I and positioning ring II. Multiple through slots are provided on the side end of the drive ring along its central axis. The multiple through slots are arranged equidistantly around the central axis of the drive ring. A driven block is inserted into each of the through slots. A driven ring is coaxially sleeved on the outside of positioning ring I. Multiple driven blocks are fixedly connected to the driven ring. The side end of each driven block abuts against positioning ring I and positioning ring II respectively.

[0009] Preferably, the positioning ring II has multiple follower grooves on its side end, and the multiple follower grooves are equidistantly arranged around the central axis of the positioning ring II. Furthermore, the two ends of each follower groove are not on the same vertical plane, and a follower block is inserted into each follower groove. A follower ring is coaxially sleeved on the outside of the follower groove, and multiple follower blocks are fixedly connected to the follower ring. Furthermore, a follower rod is fixedly connected to the end of the follower ring near the driven ring. The end of the driven ring near the follower ring has multiple insertion slots for the follower rod, and each follower rod is inserted into the corresponding insertion slot.

[0010] Preferably, when the follower ring moves toward the plug along its central axis, the distance between the locking block and the central axis of the drive ring increases.

[0011] Preferably, the projection of each follower block on the vertical plane is a T-shaped structure, the narrower end of the follower block is fixedly connected to the inner wall of the follower ring, and the positioning ring II is fixedly connected to a sealing plate at the end near the plug.

[0012] Preferably, the end of the plug near the socket is an inclined surface, and the outer diameter of the end face of the plug near the socket is smaller than the outer diameter of the locking groove. The projection of the vertical surface of each locking block is a right-angled triangle structure, and the end of the locking block near the plug is an inclined surface.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention designs a socket by coaxially fixing positioning ring I and positioning ring II to the outside of the socket, and by equidistantly arranging multiple locking blocks around the central axis of the socket on positioning ring I and positioning ring II. By cooperating with the locking groove on the plug, the locking blocks constrain the position of the locking groove when inserted into it, thus achieving a locking function between the socket and the plug. Through this structural design, the device not only improves structural strength and locking security but also optimizes the user experience, achieving convenient and reliable operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram showing the positional relationship between positioning ring I and positioning ring II of this utility model.

[0017] Figure 3 This is a schematic diagram of the locking block and locking groove of this utility model.

[0018] Figure 4 This is a schematic diagram of the cooperation between the drive ring and the follower shaft of this utility model.

[0019] Figure 5 This is a schematic diagram of the cooperation between the driven ring and the follower ring of this utility model.

[0020] In the diagram: 1. Plug; 2. Locking groove; 3. Sealing plate; 4. Follower ring; 5. Driven ring; 6. Socket; 7. Positioning ring I; 8. Drive ring; 9. Through groove; 10. Positioning ring II; 11. Follower groove; 12. Locking block; 13. Follower shaft; 14. Drive groove; 15. Positioning groove; 16. Driven block; 17. Follower block; 18. Driven rod; 19. Plug slot. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Please refer to Figure 1 As shown, this is a pluggable medium-voltage shore power connector, which is consistent with existing technology devices, specifically including two parts: a socket 6 and a plug 1.

[0024] Please refer to Figure 1 and Figure 2 As shown, this connector differs significantly from existing technologies. Specifically, a positioning ring I 7 and a positioning ring II 10 are added to the outside of the socket 6, and both are coaxially fixedly connected to the socket 6. The design of positioning rings I 7 and II 10 not only effectively improves the structural strength of the socket 6, but also lays a solid foundation for subsequent positioning and locking mechanisms.

[0025] Therefore, please refer to Figure 2 and Figure 3 The device has multiple locking blocks 12 between positioning ring I7 and positioning ring II10, and these locking blocks 12 are evenly distributed around the central axis of the socket 6.

[0026] Meanwhile, the plug 1 has a locking groove 2 at the end near the socket 6. When the plug 1 is inserted into the positioning ring II 10 and the follower shaft 13 is located at the end of the drive groove 14 near the central axis of the drive ring 8, the locking block 12 will be inserted into the locking groove 2. This design aims to ensure that the plug 1 can be securely locked during insertion into the socket 6, effectively preventing accidental dislodgement and thus improving safety during use.

[0027] Please refer to the following: Figure 4 To ensure effective control of the distance between the locking block 12 and the plug 1, thereby achieving controllable separation and connection between the plug 1 and the socket 6, a drive ring 8 is coaxially mounted on the end of the positioning ring I7 near the plug 1. Multiple drive grooves 14 are evenly distributed around the central axis of the drive ring 8. Notably, the distances from both ends of each drive groove 14 to the central axis of the drive ring 8 are not equal, and the inner walls of each drive groove 14 achieve a smooth transition.

[0028] Meanwhile, each locking block 12 is fixedly connected to a follower shaft 13 at the end away from the central axis of the drive ring 8. The central axes of these follower shafts 13 are parallel to the central axis of the drive ring 8. In this case, the follower shafts 13 are constrained and inserted into the drive groove 14, and their movement is restricted to linear motion only along the radius of the socket 6. This design allows the locking block 12 to move along a predetermined path under the drive of the drive ring 8, thereby achieving effective control of the distance between the locking block 12 and the central axis of the socket 6, ensuring that the device can achieve precise locking and unlocking functions.

[0029] Furthermore, the device is equipped with two drive rings 8, which are arranged side by side along the radial direction of the socket 6. In this case, multiple locking blocks 12 are arranged between the two drive rings 8. Each follower shaft 13 has a drive groove 14 at each end, thereby ensuring that a single follower shaft 13 will not become unbalanced due to unilateral force during the synchronous movement of the two drive rings 8.

[0030] Specifically, to ensure that a single locking block 12 can only move linearly along the radius line of the socket 6, this device provides multiple positioning grooves 15 at the proximal ends of positioning ring I 7 and positioning ring II 10. These positioning grooves 15 correspond one-to-one with multiple drive grooves 14, thereby ensuring precise matching between the drive grooves 14 and the positioning grooves 15. In this process, by ensuring that the center line of each positioning groove 15 coincides with the radius line of the drive ring 8, effective constraint is achieved on the insertion of the two axial ends of each follower shaft 13 into the corresponding positioning grooves 15, thereby achieving precise control of the movement trajectory of the locking block 12.

[0031] Specifically, please refer to Figure 4 and Figure 5 To achieve synchronous movement of the two drive rings 8, this device is designed with multiple equally spaced through slots 9 extending along the central axis of each drive ring 8 on its side end. These through slots 9 are arranged around the central axis of the drive ring 8. At the same time, a driven block 16 is inserted into each through slot 9 to ensure that these driven blocks 16 can maintain synchronous movement with the drive ring 8.

[0032] At this point, the device coaxially sleeves a driven ring 5 on the outside of the positioning ring I7, and constrains multiple driven blocks 16 to achieve a fixed connection with the driven ring 5. This design enables the driven ring 5 to work in coordination with the driven blocks 16, thereby achieving synchronous movement between the two driving rings 8 and the driven ring 5.

[0033] Furthermore, this device specifies that the outer diameter of the drive ring 8 must be smaller than the outer diameters of the positioning rings I 7 and II 10. Simultaneously, the side end of each driven block 16 abuts against the positioning rings I 7 and II 10 respectively. This design ensures the stability of the driven block 16 during movement and guarantees that the driven ring 5 can only rotate with the positioning rings I 7 and II 10, and cannot move relative to them.

[0034] Furthermore, the device designs the end of the individual locking block 12 furthest from the plug 1 as a vertical plane. This design aims to ensure that after the locking block 12 is inserted into the locking groove 2, when the plug 1 is subjected to a pulling force in a direction away from the socket 6, the horizontal pulling force exerted by the plug 1 on the locking block 12 cannot cause the locking block 12 to move in a direction away from the central axis of the socket 6. In this case, the drive ring 8 and the driven ring 5 cannot reverse, thereby preventing the locking block 12 from dislodging from the locking groove 2.

[0035] Furthermore, to optimize user habits and ensure smooth rotation of the driven ring 5 while plugging and unplugging the plug 1, thus maintaining the continuity of user actions, this device features multiple follower slots 11 designed and formed on the side end of the positioning ring II 10. These follower slots 11 are evenly distributed at equal intervals around the central axis of the positioning ring II 10. Simultaneously, each follower slot 11 contains a follower block 17, which, under the precise guidance of the follower slot 11, achieves orderly and accurate movement.

[0036] Therefore, through careful design, it is ensured that the two ends of each follower groove 11 are not in the same vertical plane, thus giving the follower groove 11 a certain tilt angle. This design feature provides a clear and specific directionality for the movement of the follower block 17.

[0037] Specifically, this device has a follower ring 4 coaxially arranged on the outer side of the follower groove 11, and the follower ring 4 is securely fixedly connected to multiple follower blocks 17. This structure ensures that the follower ring 4 and the follower blocks 17 can work together to achieve complex motion modes and locking mechanisms. That is, when the follower ring 4 moves linearly along the central axis of the socket 6, the follower groove 11 guides the follower blocks 17, causing the follower ring 4 to rotate during the movement.

[0038] Therefore, this device has a driven rod 18 fixedly connected to the end of the driven ring 4 near the driven ring 5. Simultaneously, multiple insertion slots 19 are provided for the driven rod 18 at the end of the driven ring 5 near the driven ring 4, with each driven rod 18 precisely inserted into its corresponding slot 19. This design allows the driven rod 18 and the driven ring 5 to be tightly connected, ensuring that the driven ring 4 and the driven ring 5 maintain synchronous movement. That is, when the user plugs in or unplugs the plug 1, the driven ring 4 is first pushed to move linearly along the socket 6, and the rotation of the driven ring 5 changes the position of the locking block 12, ultimately achieving the locking and unlocking function of the plug 1.

[0039] Furthermore, this device aims to simplify the operation steps and ensure that the locking and unlocking operation of the locking block 12 on the plug 1 is consistent with the actual movement direction of the plug 1. Specifically, this device is designed such that when the follower ring 4 moves towards the plug 1 along its central axis, the distance between the locking block 12 and the central axis of the drive ring 8 increases, causing the locking block 12 to disengage from the locking groove 2, thereby releasing the locking effect of the socket 6 on the plug 1. This movement mechanism ensures that the locking block 12 can achieve precise locking and unlocking functions during the insertion and removal of the plug 1.

[0040] It should be clarified that in practical applications, when the user pulls the plug 1 towards the socket 6, and the plug 1 is inserted into the socket 6, the user can continue to push the follower ring 4, causing it to move away from the plug 1 (i.e., towards the positioning ring I 7). At this time, the distance between the locking block 12 and the central axis of the drive ring 8 will decrease, and the locking block 12 will insert into the locking groove 2, completing the locking of the plug 1. Correspondingly, when the user needs to pull the plug 1 to separate it from the socket 6, the user can first pull the follower ring 4, causing it to move away from the positioning ring I 7. At this time, the locking block 12 will disengage from the locking groove 2, thereby releasing the locking effect of the socket 6 on the plug 1.

[0041] Furthermore, to optimize the guiding performance of the follower ring 4 under the guidance of the follower groove 11, this device adopts a design in which the projection of the constrained follower block 17 in the vertical direction presents a T-shaped structure. Specifically, the narrower end of the follower block 17 is fixedly connected to the inner wall of the follower ring 4. This design aims to improve the stability and guidance of the follower block 17 during movement, thereby ensuring its stability during movement is effectively guaranteed.

[0042] Furthermore, to ensure that the follower ring 4 does not separate from the positioning ring II 10 and to guarantee that the follower ring 4 can only move relative to the positioning ring along a specific trajectory, a sealing plate 3 is fixedly connected to one end of the positioning ring II 10 near the plug 1. The design of the sealing plate 3 not only enhances the structural stability of the positioning ring II 10, but also provides additional support and protection for the follower block 17.

[0043] Furthermore, please refer to Figure 3 To further reduce user operation steps and learning costs, the end of the plug 1 closest to the socket 6 is designed as an inclined surface. The outer diameter of the end face of the plug 1 closest to the socket 6 is smaller than the outer diameter of the locking groove 2. Furthermore, the projection of each locking block 12 in the vertical plane is a right-angled triangle. This design provides the locking block 12 with better stability and guidance during movement. Specifically, when the plug 1 is inserted into the socket 6, the inclined surface of the plug 1 first contacts the inclined surface of the locking block 12, providing a thrust to the locking block 12 in a direction away from the central axis of the drive ring 8. In this case, the user only needs to apply sufficient force to the plug 1 to smoothly insert the plug 1 into the socket 6 without pre-adjusting the position of the locking block 12.

[0044] Meanwhile, the angled design allows the plug 1 to be inserted into the socket 6 more smoothly, effectively reducing resistance during insertion. This design ensures that the plug 1 can easily pass through the locking groove 2 during insertion, avoiding jamming or obstruction, thereby improving ease of use and reliability.

[0045] In practical use, this utility model:

[0046] This device employs a specific design to ensure the stability of the driven block 16 and the synchronous movement between the positioning rings. The outer diameter of the drive ring 8 is smaller than that of the positioning ring, and the driven block 16 abuts against the positioning ring to prevent positional movement. The locking block 12, located away from the plug 1, is designed as a vertical plane to prevent movement of the locking block 12 when the plug 1 is subjected to force. The side end of the positioning ring II 10 is provided with a follower groove 11 and a follower block 17 to ensure continuous movement. The tilt angle of the follower groove 11 provides directionality, and the follower ring 4 is fixedly connected to the follower block 17 to achieve complex movement patterns. The driven rod 18 is connected to the follower ring 5 to ensure synchronous movement. User operation is simple; locking and unlocking are consistent with the movement direction of the plug 1. The T-shaped structure of the follower block 17 enhances stability. The sealing plate 3 reinforces the positioning ring structure and provides support. The end face of the plug 1 is designed as an inclined surface to reduce insertion resistance and improve ease of use.

[0047] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pluggable medium-voltage shore power connector, characterized in that: It includes a socket (6) and a plug (1), wherein a positioning ring I (7) is sleeved on the outside of the socket (6), and the positioning ring I (7) is coaxially and fixedly connected to the socket (6); The positioning ring I (7) is coaxially provided with a driving ring (8) near the end of the plug (1). Multiple driving grooves (14) are opened through the driving ring (8). The multiple driving grooves (14) are arranged equidistantly around the central axis of the driving ring (8). Furthermore, the distance between the two ends of each driving groove (14) and the central axis of the driving ring (8) is not equal. The inner wall of each driving groove (14) is smoothly transitioned. There are two drive rings (8), and multiple locking blocks (12) are provided between the two drive rings (8). The multiple locking blocks (12) correspond one-to-one with multiple drive slots (14). Furthermore, each locking block (12) has a follower shaft (13) fixedly connected to one end away from the central axis of the drive ring (8). The central axis of the follower shaft (13) is parallel to the central axis of the drive ring (8). The drive ring (8) is provided with a positioning ring II (10) near the plug (1). The positioning ring II (10) is coaxially fixedly connected to the socket (6). Furthermore, the positioning ring I (7) and the positioning ring II (10) are respectively provided with multiple positioning grooves (15) near the end. The multiple positioning grooves (15) correspond one-to-one with the multiple drive grooves (14). The center line of each of the positioning grooves (15) coincides with the radius line of the drive ring (8), and the axial end of each of the follower shafts (13) is inserted into the drive groove (14) and the positioning groove (15) on the same side. The plug (1) is provided with a locking groove (2) at one end near the socket (6). When the plug (1) is inserted into the positioning ring II (10) and the follower shaft (13) is located at one end of the drive groove (14) near the center axis of the drive ring (8), the locking block (12) is inserted into the locking groove (2).

2. A pluggable medium-voltage shore power connector according to claim 1, characterized in that: The outer diameter of the drive ring (8) is smaller than the outer diameter of the positioning ring I (7) and the positioning ring II (10). Multiple through slots (9) are opened through the side end of the drive ring (8) along its central axis. The multiple through slots (9) are arranged equidistantly around the central axis of the drive ring (8). Furthermore, a driven block (16) is inserted into each of the through slots (9). A driven ring (5) is coaxially sleeved on the outside of the positioning ring I (7). Multiple driven blocks (16) are fixedly connected to the driven ring (5). Each driven block (16) abuts against the positioning ring I (7) and the positioning ring II (10) respectively.

3. A pluggable medium-voltage shore power connector according to claim 2, characterized in that: The positioning ring II (10) has multiple follower grooves (11) on its side end. The multiple follower grooves (11) are arranged equidistantly around the central axis of the positioning ring II (10). Furthermore, the two ends of each follower groove (11) are not on the same vertical plane, and a follower block (17) is inserted into each follower groove (11). A follower ring (4) is coaxially sleeved on the outside of the follower groove (11), and multiple follower blocks (17) are fixedly connected to the follower ring (4). Furthermore, a follower rod (18) is fixedly connected to one end of the follower ring (4) near the driven ring (5). The driven ring (5) has multiple insertion slots (19) on one end near the follower ring (4) for the driven rod (18), and each driven rod (18) is inserted into the corresponding insertion slot (19).

4. A pluggable medium-voltage shore power connector according to claim 3, characterized in that: When the follower ring (4) moves toward the plug (1) along its central axis, the distance between the locking block (12) and the central axis of the drive ring (8) increases.

5. A pluggable medium-voltage shore power connector according to claim 3, characterized in that: Each of the following blocks (17) has a T-shaped projection on the vertical plane. The narrower end of the following block (17) is fixedly connected to the inner wall of the following ring (4). Furthermore, the positioning ring II (10) is fixedly connected to a sealing plate (3) at the end near the plug (1).

6. A pluggable medium-voltage shore power connector according to claim 1, characterized in that: The end of the plug (1) near the socket (6) is an inclined surface, and the outer diameter of the end face of the plug (1) near the socket (6) is smaller than the outer diameter of the locking groove (2); The projection of the vertical plane of each locking block (12) is a right-angled triangle structure, and the end of the locking block (12) near the plug (1) is an inclined surface.

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