Quick plug connector device for shore power connection of a ship

Abstract

The utility model discloses a quick plug connector device for ship shore power connection belongs to ship power equipment technical field, including joint no.

Description

Technical Field

[0001] This utility model relates to the field of marine power equipment technology, and in particular to a quick-connect coupling device for shore power connection on ships. Background Technology

[0002] While ships are docked in port, in order to save energy and reduce noise and air pollution to the port environment, they usually shut down their auxiliary generators and instead receive the necessary power from the port power grid through the shore power system. This requires the establishment of a high-power power connection channel between the ship and the dock, and the connector device used for ship shore power connection is the key equipment to realize this connection.

[0003] Currently, in practical applications, some shore power connection devices often use threaded tightening or multi-bolt flange fixing to ensure the tightness of the connection. Although this connection method can provide strong locking force, its structure is relatively complex, and the connection and disassembly process requires special tools. The operation steps are cumbersome and consume a lot of manpower and time, making it difficult to meet the requirements of modern port operations for high efficiency and fast pace.

[0004] More importantly, ships are not completely stationary while berthed in port. They are subject to continuous swaying and vibration due to factors such as wind, waves, tides, and cargo loading and unloading. These dynamic external forces are continuously transmitted to the shore power connectors. For traditional connectors that rely solely on friction or unidirectional locking, prolonged vibration can easily cause the connecting parts to become loose in rotation. Over time, this can create gaps in the connection, potentially causing power transmission interruptions and, in severe cases, even electric arcs, posing a serious safety hazard.

[0005] Therefore, this utility model proposes a quick-connect coupling device for ship shore power connection to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of cumbersome and time-consuming connection operation of existing quick-connect coupling devices for ship-to-shore power connection, insufficient connection stability under ship swaying and other conditions, and potential safety hazards of accidental loosening, this utility model aims to provide a quick-connect coupling device for ship-to-shore power connection with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a quick-connect and disconnect device for shore power connection of ships, including a connector 1, a connector 2 that can be plugged and disconnected with the connector 1, a fixing ring, a connecting ring, a moving ring, a fixing post, a limiting plate, a limiting post and a limiting hole.

[0008] The fixing ring is fixedly connected to the top of the outer wall of connector one, the connecting ring is fixedly connected to the bottom of the outer wall of connector two, and the moving ring is slidably set on the top of the outer wall of connector two.

[0009] The top of the fixed ring has a sliding groove and a slot located at the bottom of the inner side of the sliding groove. The bottom of the connecting ring is fixedly connected to a fixed post, and the bottom of the fixed post is fixedly connected to a limit plate. The fixed post and the limit plate are axially locked together with the fixed ring by being inserted into the sliding groove and then rotated so that the limit plate is locked into the slot.

[0010] Furthermore, a limiting post is fixedly connected to the bottom of the moving ring, and limiting holes are opened at the top of the fixed ring and the top of the connecting ring. The moving ring forms a radial locking fit with the fixed ring and the connecting ring by driving the limiting post to insert into the limiting hole.

[0011] Preferably, both the slide groove and the slot are arranged in a ring along the circumference of the fixing ring.

[0012] Preferably, the shape of the limiting plate matches the shape of the slot to achieve engagement, and the cross-sectional shape of the fixing post matches the cross-sectional shape of the slide to achieve sliding.

[0013] Preferably, the limiting hole includes a first limiting hole formed on the fixing ring and a second limiting hole formed on the connecting ring, wherein the first limiting hole and the second limiting hole are coaxially aligned at a specific position so that the limiting pin can be inserted simultaneously.

[0014] Preferably, multiple sliding grooves, fixed columns, limiting columns, and limiting holes are provided, and each is provided in a corresponding manner.

[0015] Preferably, it also includes a rubber pad that is fixedly connected to the middle of the outer wall of the second connector and located below the moving ring.

[0016] Preferably, the bottom surface of the moving ring compresses the rubber pad as it moves downward.

[0017] Preferably, the fixing column and the limiting plate are integrated to form a T-shaped connection and positioning assembly.

[0018] This utility model has the following beneficial effects: 1. This utility model, by setting a rotating locking fit between the limiting plate and the slot, and an insertion locking fit between the limiting post and the limiting hole, forms a double locking structure in both the axial and radial directions. This solves the problem that existing ship shore power connectors have insufficient connection reliability under complex working conditions such as vibration and swaying, and are prone to accidental rotation and loosening or axial separation, which poses safety hazards.

[0019] 2. This utility model solves the problems of cumbersome connection process, laborious operation, and long time consumption of some existing shore power connectors, which affect the efficiency of dock operations, by decomposing the complex locking action into three continuous and simple steps: insertion, rotation, and downward movement, and using an annular slide for guidance. It achieves a significant simplification of the connection and disassembly operation process, realizes rapid insertion and removal, shortens the operation time, and improves work efficiency. Attached Figure Description

[0020] Figure 1 This is a perspective view of the quick-connect coupling device for ship shore power connection proposed in this utility model. Figure 2 This is a front view of the quick-connect coupling device for ship-to-shore power connection proposed in this utility model; Figure 3 This is a cross-sectional view of the retaining ring in the quick-connect coupling device for ship-to-shore power connection proposed in this utility model. Figure 4 This is a schematic diagram of the slide groove in the quick-connect coupling device for ship-to-shore power connection proposed in this utility model.

[0021] Legend: 1. Connector 1; 2. Connector 2; 3. Fixing ring; 4. Slide groove; 5. Slot; 6. Connecting ring; 7. Fixing post; 8. Limiting plate; 9. Rubber pad; 10. Moving ring; 11. Limiting post; 12. Limiting hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0023] Example: Please refer to Figures 1 to 4 This utility model provides a quick-connect and disconnect device for shore power connection of ships, which aims to solve the problems of insufficient speed and stability of shore power connection operation in the prior art, and the risk of loosening under high vibration conditions. like Figure 1 and Figure 2 As shown, the quick-connect coupling device for ship-to-shore power connection includes a connector 1 and a connector 2 that can be plugged into and unplugged from the connector 1. A retaining ring 3 is fixedly connected to the top of the outer wall of the connector 1, a connecting ring 6 is fixedly connected to the bottom of the outer wall of the connector 2, and a movable ring 10 is slidably disposed on the top of the outer wall of the connector 2. Figure 3 and Figure 4As shown, the top of the fixed ring 3 is provided with multiple sliding grooves 4 arranged in a circular direction along the circumference. The bottom of the inner side of each sliding groove 4 is provided with a slot 5. The bottom of the connecting ring 6 is fixedly connected with multiple fixed posts 7. The multiple fixed posts 7 are arranged one-to-one with the sliding grooves 4. The bottom of each of the multiple fixed posts 7 is fixedly connected with a limiting plate 8. The fixed posts 7 and the limiting plate 8 form a T-shaped connecting and positioning assembly. The shape of the limiting plate 8 matches the shape of the slot 5 to achieve engagement. The cross-sectional shape of the fixed post 7 matches the cross-sectional shape of the sliding groove 4 to achieve sliding.

[0024] The core of the technical solution in this embodiment lies in the specific structural fit and connection relationship formed between the moving ring 10, the limiting post 11, and the limiting hole 12, which achieves radial locking of the connected joint. Please refer to the following for details. Figure 1 and Figure 3 The core locking structure is described in detail below. Multiple limiting posts 11 are fixedly connected to the bottom of the moving ring 10. The moving ring 10 is sleeved on the outer wall of the second connector 2 and can slide along the axial direction of the second connector 2. Its function is to complete the final radial locking by driving the limiting posts 11 through axial movement after the first connector 1 and the second connector 2 have completed axial locking. Simultaneously, multiple limiting holes 12 are correspondingly provided on the top of the fixed ring 3 and the top of the connecting ring 6. The limiting holes 12 include a first limiting hole 12 on the fixed ring 3 and a second limiting hole 12 on the connecting ring 6. The first limiting hole 12 and... When the second limiting hole 12 is rotated to the position where the limiting plate 8 is inserted into the slot 5, the second limiting hole 12 is coaxially aligned. In the assembled and locked state, the moving ring 10 drives the limiting post 11 to be inserted axially into the coaxially aligned limiting hole 12. This plug-in structure of the limiting post 11 and the limiting hole 12 ensures that the second connector 2 cannot rotate relative to the first connector 1, which greatly improves the vibration resistance and anti-loosening ability of the connection. In addition, a rubber pad 9 is fixedly connected to the middle of the outer wall of the second connector 2, below the moving ring 10. During the downward movement of the moving ring 10, the bottom surface of the moving ring 10 squeezes the rubber pad 9.

[0025] As a preferred embodiment, to provide clear guidance for the rotational snap-fit ​​process of the connector and simplify the positioning operation, please refer to... Figure 4 The sliding groove 4 and the slot 5 on the fixed ring 3 are both arranged in a ring along the circumference of the fixed ring 3. This ring structure provides a continuous trajectory for the entry and sliding of the fixed column 7 and the limiting plate 8. As another preferred embodiment, in order to ensure the accuracy of the fit between the two steps of axial locking and radial locking, the limiting hole 12 includes a first limiting hole 12 opened on the top of the fixing ring 3 and a second limiting hole 12 opened on the top of the connecting ring 6. The first limiting hole 12 and the second limiting hole 12 are coaxially aligned in the vertical direction only when the connector 2 is rotated to the final position where the limiting plate 8 is fully inserted into the slot 5, thereby allowing the limiting post 11 to be inserted smoothly. As a specific structural layout, in order to enhance the stability and load-bearing capacity of the overall connection, multiple sliding grooves 4, fixed columns 7, limiting columns 11 and limiting holes 12 are provided and evenly distributed along the circumference, and are set one-to-one. This multi-point cooperation structure can disperse the locking force and external force, and improve the reliability of the connection.

[0026] Working Principle: During the connection operation, first align the bottom of connector 2 with the top of connector 1, aligning the multiple fixing posts 7 and limiting plates 8 at the bottom of the connecting ring 6 with the multiple sliding grooves 4 at the top of the fixing ring 3. Then, insert the fixing posts 7 and limiting plates 8 along the inside of the sliding grooves 4. Since the sliding grooves 4 have an annular opening design, the insertion process is smooth and directional. When the limiting plates 8 contact the bottom of the sliding grooves 4, rotate connector 2 clockwise. The rotation of connector 2 will drive the connecting ring 6 to rotate synchronously. During the rotation of the connecting ring 6, the fixing posts 7 and limiting plates 8 will slide along the annular trajectory of the sliding grooves 4. When the limiting plates 8 slide to the corresponding position of the slots 5, the limiting plates 8 will lock into the inside of the slots 5. Through the locking action of the slots 5 on the limiting plates 8, the vertical movement of connector 2 is restricted, thus preventing connector 1 and connector 2 from separating. This completes the first axial locking. After the axial locking is completed, connector 2 can no longer rotate. At this time, the moving ring 10 moves downward, and the moving ring 10 drives the multiple limiting posts 11 fixed at the bottom to move downward synchronously. During the movement of the moving ring 10, it will squeeze the multiple rubber pads 9 in the middle of the outer wall of the second connector 2. The rubber pads 9 undergo elastic deformation under compression, ensuring the smooth movement of the moving ring 10. As the moving ring 10 continues to move downward, the multiple limiting posts 11 are inserted into the limiting holes 12 that are already coaxially aligned at the top of the connecting ring 6 and the fixed ring 3. Through the insertion and cooperation of the limiting posts 11 and the limiting holes 12, the rotational freedom of the second connector 2 is restricted, thereby preventing the second connector 2 from rotating loose during use. This completes the second radial locking. Through the above two locking, the long-term stability of the connection between the first connector 1 and the second connector 2 is ensured. When disassembling, it is only necessary to reverse the operation. First, lift the moving ring 10 upward to pull out the limiting posts 11, and then rotate the second connector 2 counterclockwise to make the limiting plate 8 disengage from the slot 5, so that the second connector 2 can be quickly pulled out.

Claims

1. A quick-connect coupling device for shore power connection of a ship, comprising a first coupling (1) and a second coupling (2) that can be plugged into and disconnected with the first coupling (1), wherein a fixed ring (3) is fixedly connected to the top of the outer wall of the first coupling (1), a connecting ring (6) is fixedly connected to the bottom of the outer wall of the second coupling (2), and a movable ring (10) is slidably provided on the top of the outer wall of the second coupling (2). Its features are, The top of the fixing ring (3) is provided with a sliding groove (4), and the bottom of the inner side of the sliding groove (4) is provided with a slot (5). The bottom of the connecting ring (6) is fixedly connected with a fixing post (7), and the bottom of the fixing post (7) is fixedly connected with a limiting plate (8). The limiting plate (8) can rotate with the second connector (2) to the corresponding position of the slot (5) and be locked inside the slot (5) after being inserted into the sliding groove (4), so as to restrict the first connector (1) and the second connector. (2) Vertical movement, the bottom of the moving ring (10) is fixedly connected to a limiting post (11), the top of the fixed ring (3) and the top of the connecting ring (6) are both provided with limiting holes (12), the moving ring (10) can move downward after the limiting plate (8) is inserted into the slot (5) so that the limiting post (11) can be inserted into the limiting hole (12) of the fixed ring (3) and the connecting ring (6) at the same time to restrict the rotation of the second joint (2).

2. The quick-connect coupling device for ship-to-shore power connection according to claim 1, characterized in that, Both the slide groove (4) and the slot (5) are arranged in a ring along the circumference of the fixing ring (3).

3. The quick-connect coupling device for ship-to-shore power connection according to claim 1, characterized in that, The shape of the limiting plate (8) matches the shape of the slot (5) to achieve engagement, and the cross-sectional shape of the fixing post (7) matches the cross-sectional shape of the sliding groove (4) to achieve sliding.

4. The quick-connect coupling device for ship-to-shore power connection according to claim 1, characterized in that, The limiting hole (12) includes a first limiting hole (12) opened on the fixing ring (3) and a second limiting hole (12) opened on the connecting ring (6). The first limiting hole (12) and the second limiting hole (12) are coaxially aligned when the connector (2) is rotated to the position where the limiting plate (8) is inserted into the slot (5) so that the limiting post (11) can be inserted at the same time.

5. The quick-connect coupling device for ship-to-shore power connection according to claim 1, characterized in that, Multiple slides (4), fixed posts (7), limiting posts (11) and limiting holes (12) are provided, and each is provided in a corresponding manner.

6. The quick-connect coupling device for ship-to-shore power connection according to claim 1, characterized in that, A rubber pad (9) is also fixedly connected to the middle of the outer wall of the connector (2) and below the moving ring (10).

7. The quick-connect coupling device for ship-to-shore power connection according to claim 6, characterized in that, As the moving ring (10) moves downward to insert the limiting post (11) into the limiting hole (12), the bottom surface of the moving ring (10) compresses the rubber pad (9).

8. The quick-connect coupling device for ship-to-shore power connection according to claim 1, characterized in that, The fixed column (7) and the limiting plate (8) form a T-shaped connection and positioning assembly.

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