An aviation plug waterproof wet plug type connector for a smart gateway

Abstract

The present application relates to the technical fields of industrial intelligent gateway, and especially relates to a waterproof and wet plug type connector for an aviation plug of an intelligent gateway. The waterproof and wet plug type connector comprises a connecting shell, a conductive module arranged in the middle of the connecting shell, the conductive module being used for protecting two cable ends after completion of butt joint, symmetrically distributed sliding rings and symmetrically distributed limiting rings being slidingly connected in the connecting shell, a threaded sleeve being threadedly connected to one side of the limiting ring close to the conductive module, circumferentially equidistantly distributed wedge-shaped blocks being fixedly connected to one side of the limiting ring close to the conductive module, the threaded sleeve being used for extruding adjacent wedge-shaped blocks and clamping adjacent cable ends, and springs being fixedly connected between the sliding rings and the adjacent limiting rings. The present application drives the circumferentially equidistantly distributed wedge-shaped blocks by the springs and the limiting rings to make the two separated cable ends close to each other, so that the cable ends can still ensure normal current transmission after being disturbed by external force.

Description

Technical Field

[0001] This invention relates to the field of industrial smart gateway technology, and in particular to an aviation-grade waterproof wet-plug connector for smart gateways. Background Technology

[0002] As a key node in IoT systems, smart gateways are widely used in various complex and harsh environments such as industrial automation, smart cities, and traffic monitoring. These environments present challenges such as humidity, rain, vibration, and physical contact. To ensure the stable operation and long-term reliability of smart gateways, their electrical connections with external sensors, actuators, power lines, or communication cables must possess excellent waterproof, dustproof, vibration-resistant, and shock-resistant properties.

[0003] Aviation connectors (also known as circular connectors) are an ideal choice for external connection interfaces of smart gateways due to their robust structure, reliable connection, ease of blind mating, and ease of achieving high-level sealing protection. Especially in scenarios requiring rapid on-site deployment, maintenance, or replacement, some connectors rely on rubber sealing rings to enable "wet plugging and unplugging," preventing moisture from entering the connector when the plug and socket are engaged, allowing for safe connection or disconnection without causing short circuits or equipment damage. However, conventional waterproof aviation connectors used in smart gateways in existing technology can separate the two cable ends under complex and varied external forces in actual field conditions, especially when cables are subjected to tension, torque, or repeated bending, leading to circuit breakage and affecting current transmission. Summary of the Invention

[0004] In order to overcome the disadvantage that the two cable ends separate when the cable is subjected to tension, torsion or repeated bending, thereby causing the circuit to break and affecting the current transmission, the purpose of this invention is to provide a buffered aviation plug waterproof wet-plug type connector for smart gateways.

[0005] Technical Solution: A waterproof wet-plug type connector for smart gateways includes a connecting shell. A conductive module is disposed in the center of the connecting shell. The conductive module is used to protect two cable ends after mating. Symmetrically distributed sliding rings and symmetrically distributed limiting rings are slidably connected within the connecting shell. The symmetrically distributed limiting rings are located between the symmetrically distributed sliding rings. A threaded sleeve is threadedly connected to the side of the limiting ring near the conductive module. The connecting shell is provided with an open groove for adjacent threaded sleeves to rotate. A circumferentially evenly distributed wedge-shaped blocks are fixedly connected to the side of the limiting ring near the conductive module. The wedge-shaped blocks are made of deformable steel. The threaded sleeve is used to press adjacent wedge-shaped blocks to clamp adjacent cable ends. A spring is fixedly connected between the sliding ring and the adjacent limiting ring. The spring drives the cable ends to move through the limiting ring and the circumferentially evenly distributed wedge-shaped blocks, and the symmetrically distributed cable ends remain connected.

[0006] To further explain, symmetrically distributed positioning rings are fixed inside the connecting shell. The positioning rings are located between adjacent sliding rings and limiting rings, and the positioning rings are used to limit the adjacent limiting rings.

[0007] To further explain, the distance between the positioning ring and the adjacent limiting ring is less than the maximum deformation of the spring.

[0008] To further explain, the connecting shell has symmetrically distributed air-storing bladders on the side near the sliding ring, and telescopic bladders are provided on the connecting shell near the air-storing bladders. The telescopic bladders are used to push the adjacent sliding rings. The side of the telescopic bladder near the adjacent air-storing bladder is fixed to the connecting shell, and the side of the air-storing bladder near the adjacent telescopic bladder is fixed to the connecting shell. The connecting shell is provided with a communication hole for communicating between the air-storing bladders and the adjacent telescopic bladders.

[0009] To further explain, each of the connecting shells near the telescopic airbag is slidably connected to a sliding rod. The sliding rod is slidably connected to the adjacent sliding ring and the adjacent positioning ring. The limiting ring is used to compress the sliding rod. Each of the connecting shells near the sliding rod is slidably connected to a sealing rod. The side of the sealing rod closest to the adjacent sliding rod is a rectangular block, and the side of the sealing rod furthest from the adjacent sliding rod is a cylindrical rod. The cylindrical part of the sealing rod is used to seal the adjacent connecting hole, and the cylindrical part of the sealing rod is provided with a through hole for connecting the connecting holes.

[0010] To further explain, the rectangular block portion of the sealing rod is provided with a trapezoidal groove, and the slide rod moves the sealing rod by pressing the trapezoidal groove of the adjacent sealing rod.

[0011] Further explanation: The connecting shell is provided with equally spaced compression blocks near the gas storage bladder. These compression blocks are used to compress adjacent gas storage bladders. Each compression block is fixedly connected to a guide block that slides within the connecting shell. The connecting shell has symmetrically distributed grooves on the side near the cable end. The side of the guide block away from the adjacent compression block is located within the corresponding groove of the connecting shell. A sliding plate is slidably connected to the groove of the connecting shell. The sliding plate is used to compress adjacent guide blocks. An intercepting plate is hinged to the sliding plate. A torsion spring is provided at the hinge point between the intercepting plate and the adjacent sliding plate. A fixing ring is fixedly connected to the cable end. The fixing ring is fixedly connected to symmetrically distributed fixing blocks. The fixing blocks slide within the grooves of adjacent connecting shells. The intercepting plate is located on the movement path of the adjacent fixing blocks.

[0012] To further explain, the distance between the fixed block and the adjacent interceptor plate is greater than the distance between the sliding ring and the limiting ring.

[0013] To further explain, the cross-section of the extrusion block is arc-shaped, which is used to increase the contact area between it and the air storage bladder.

[0014] To further explain, the guide block has an arc-shaped surface on the side away from the adjacent extrusion block.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention uses a spring and a limiting ring to drive circumferentially evenly spaced wedge blocks to bring the two separated cable ends closer together, so that the cable ends can still ensure normal current transmission even after being disturbed by external forces. When the cable end slides relative to the limiting ring, gas is added to the telescopic air bladder through the air storage bladder, which extends the telescopic air bladder to ensure that the two cable ends continue to contact and ensure smooth circuit operation. By squeezing the guide block, the sliding plate squeezes the air storage bladder, increasing the air pressure in the air storage bladder and the telescopic air bladder. When the cable end slides relative to the limiting ring multiple times, the cable end can be reset, and the problem of the cable end being unable to reset due to air leakage in the air storage bladder is avoided, ensuring stable power transmission of this connector. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the present invention; Figure 3 This is a three-dimensional structural diagram of the limiting ring and threaded sleeve of the present invention; Figure 4 This is a three-dimensional structural diagram of the air-storage airbag and the telescopic airbag of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the 3D structure at point A; Figure 6 For the present invention Figure 4 Enlarged view of the 3D structure at point B; Figure 7 This is a three-dimensional structural diagram of the interceptor plate and fixing block of the present invention; Figure 8 This is a three-dimensional structural diagram of the interceptor plate after rotation according to the present invention.

[0017] The labels in the diagram are as follows: 1. Connecting shell, 101. Conductive module, 102. Connecting hole, 111. Cable end, 2. Sliding ring, 3. Limiting ring, 4. Threaded sleeve, 5. Wedge block, 6. Spring, 7. Positioning ring, 8. Air storage bag, 9. Telescopic air bag, 10. Sliding rod, 11. Sealing rod, 12. Extrusion block, 13. Guide block, 14. Sliding plate, 15. Intercepting plate, 16. Fixing ring, 17. Fixing block. Detailed Implementation

[0018] 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.

[0019] Example 1

[0020] A waterproof, wet-plug type connector for smart gateways, such as... Figures 1-4As shown, the device includes a connecting shell 1, with a conductive module 101 disposed in the center of the connecting shell 1. The conductive module 101 is a conductor and is used to protect the two cable ends 111 after docking, preventing moisture from entering the contact surface of the two cable ends 111. When both cable ends 111 are inserted into the conductive module 101 and in contact with each other, current is transmitted between the two cable ends 111. Two sliding rings 2 and two limiting rings 3 are symmetrically distributed on the left and right sides and slidably connected inside the connecting shell 1. The two limiting rings 3 are located between the two sliding rings 2. A threaded sleeve 4 is threadedly connected to the side of the limiting ring 3 near the conductive module 101. The outer side of the threaded sleeve 4 is provided with anti-slip protrusions to facilitate the operator to rotate the threaded sleeve 4. The connecting shell 1 is provided with an open groove for the adjacent threaded sleeve 4 to rotate, facilitating the operator to rotate the threaded sleeve 4 from the outside of the connecting shell 1. A limit ring 3 is fixedly connected to the side near the conductive module 101. Six wedge-shaped blocks 5 are evenly spaced circumferentially. The wedge-shaped blocks 5 are made of deformable material. The threaded sleeve 4 is used to compress the six adjacent wedge-shaped blocks 5, so that the six wedge-shaped blocks 5 move closer to each other and clamp the adjacent cable ends 111. A spring 6 is fixed between the sliding ring 2 and the adjacent limiting ring 3. After the two cable ends 111 are separated by external force, the spring 6 drives the two cable ends 111 to move closer through the limiting ring 3 and the six wedge-shaped blocks 5, so that the two cable ends 111 fit tightly together. The spring 6 resets after the two cable ends 111 move away from each other, so that the two cable ends 111 continue to contact. Two positioning rings 7 are fixedly fixed inside the connecting shell 1, which are symmetrically distributed on the left and right. The positioning rings 7 are located between the adjacent sliding ring 2 and the limiting ring 3. The positioning rings 7 are used to limit the adjacent limiting ring 3. The distance between the positioning ring 7 and the adjacent limiting ring 3 is less than the maximum deformation of the spring 6, so as to prevent the compression of the spring 6 from exceeding its maximum stroke and causing the spring 6 to lose its elasticity.

[0021] like Figures 3-5 As shown, two air-storing airbags 8 are symmetrically distributed on both the left and right sides of the connecting shell 1. Telescopic airbags 9 are provided on both sides of the connecting shell 1 near the air-storing airbags 8. The telescopic airbags 9 are used to push the adjacent sliding rings 2. The side of the telescopic airbag 9 near the adjacent air-storing airbag 8 is fixed to the connecting shell 1. The side of the air-storing airbag 8 near the adjacent telescopic airbag 9 is fixed to the connecting shell 1. Two connecting holes 102 are symmetrically distributed on both the left and right sides of the connecting shell 1. The connecting holes 102 are used to connect the adjacent air-storing airbags 8 and the adjacent telescopic airbags 9.

[0022] like Figure 1 and Figures 3-5As shown, the connecting shell 1 is laterally slidably connected to the position of the telescopic airbag 9. The sliding rod 10 is slidably connected to the adjacent sliding ring 2 and the adjacent positioning ring 7. The connecting shell 1 is longitudinally slidably connected to the position of the sliding rod 10. There is friction between the sealing rod 11 and the connecting shell 1. Without external force, the sealing rod 11 cannot move. The side of the sealing rod 11 near the adjacent sliding rod 10 is a rectangular block, and the side of the sealing rod 11 away from the adjacent sliding rod 10 is a cylindrical rod. In the initial state, the cylindrical part of the sealing rod 11 is inserted into the adjacent connecting hole 102 and seals it. The cylindrical part of the sealing rod 11 is provided with a through hole, and the rectangular part of the sealing rod 11 is provided with a trapezoidal groove. The sliding rod 10 moves the sealing rod 11 by squeezing the trapezoidal groove of the adjacent sealing rod 11, so that the through hole of the sealing rod 11 is aligned with the adjacent connecting hole 102 and connected.

[0023] When this connector is needed to connect two cable ends 111, taking the left cable end 111 as an example, the operator inserts the cable end 111 from the left side of the connecting shell 1. The right side of the cable end 111 passes through the limiting ring 3 and enters the conductive module 101. When the right side of the cable end 111 is in the middle of the conductive module 101, the operator stops moving the cable end 111 to the right. Then, the operator pushes the threaded sleeve 4 to the left. The threaded sleeve 4 drives the limiting ring 3 to move to the left. The limiting ring 3 drives the sliding ring 2 to move to the left through the spring 6. When the sliding ring 2 can no longer move to the left, the operator continues to move the threaded sleeve 4 to the left. The spring 6 is compressed. The force of the compressed spring 6 ensures that the two cable ends 111 will not disconnect during normal use. Then, the operator stops moving the threaded sleeve 4 to the left. The above process is to position the sliding ring 2 and the limiting ring 3 (since the sliding ring 2 and the limiting ring 3 slide freely in the connecting shell 1, the sliding ring 2 needs to be moved to the left first to complete the positioning).

[0024] After the positioning process of sliding ring 2 and limit ring 3 is completed, the operator rotates threaded sleeve 4, and threaded sleeve 4 begins to move to the left. Threaded sleeve 4 squeezes the six wedge blocks 5 closer to each other. Since the wedge blocks 5 are made of deformable steel, they will be pressed tightly against cable end 111 after being squeezed. When the right side of cable end 111 is fixed by sliding ring 2, cable end 111 is fixed. At the same time, the operator repeats the above steps to fix the right side of cable end 111, so that the two cable ends 111 are in contact with each other. When both cable ends 111 are fixed, the connector works normally. The current from the left cable end 111 is transmitted to the right cable end 111. Since the two springs 6 are in a compressed state, the two cable ends 111 will be tightly fitted to ensure normal current transmission.

[0025] During the operation of the existing connector, environmental factors (wind) or human error (accidental contact) can cause the two cables to move away from each other, resulting in an electric arc at the two cable ends 111, which affects current transmission. When the two cable ends 111 are disconnected, the circuit is broken and current transmission cannot be completed. Therefore, when an external force causes the cable end 111 to slide relative to the connecting shell 1, taking the left cable end 111 as an example, the cable end 111 moves to the left. The cable end 111 drives the limiting ring 3 and the threaded sleeve 4 to move to the left through the six wedge blocks 5. The limiting ring 3 compresses the spring 6. When the external force disappears, the spring 6 resets and drives the limiting ring 3 and the threaded sleeve 4 to move to the right. The limiting ring 3 drives the cable end 111 to move to the right, so that the two cable ends 111 contact each other again, ensuring that the circuit is in a continuous state. Through the spring 6 and the limiting ring 3, the cable end 111 can still ensure normal current transmission after being interfered with by external forces, ensuring the smooth operation of the circuit.

[0026] Taking the left limiting ring 3 as an example, during the process of the limiting ring 3 moving to the left, after the limiting ring 3 comes into contact with the positioning ring 7, it is limited by the positioning ring 7 and cannot continue to move to the left, so as to prevent the compression of the spring 6 from exceeding its maximum stroke, which would cause the spring 6 to lose its elasticity.

[0027] Under normal circumstances, the two cable ends 111 can remain in contact solely due to the elastic force of spring 6. If an external force causes relative movement between cable ends 111 and adjacent limiting rings 3, the connector operates as follows: Initially, the air bladder 8 is inflated, and the sealing rod 11 blocks the adjacent connecting hole 102. Taking the left cable end 111 as an example, when cable end 111 moves the limiting ring 3 to the left and contacts the positioning ring 7, the elastic force of spring 6 reaches its maximum value. At this time, if cable end 111… Continuing to move to the left, the squeezing force between the wedge block 5 and the cable end 111 is insufficient to fix the cable end 111. Therefore, the cable end 111 will move to the left relative to the limiting ring 3. During the contact between the limiting ring 3 and the positioning ring 7, taking the upper sliding rod 10 as an example, the limiting ring 3 squeezes the sliding rod 10 to move to the left. The left end of the sliding rod 10 moves downward through the trapezoidal groove of the sealing rod 11, so that the through hole of the sealing rod 11 connects with the connecting hole 102. The air storage bag 8 is connected to the telescopic air bag 9 through the connecting hole 102.

[0028] When the external force is removed, the spring 6 resets and drives the cable end 111 to move to the right through the limiting ring 3. At this time, the distance generated by the spring 6 reset is insufficient for the two cable ends 111 to contact. Therefore, during the reset process of the spring 6, the gas in the inflated gas storage bag 8 enters the telescopic gas bag 9 through the connecting hole 102. The telescopic gas bag 9 gradually extends, and the right side of the telescopic gas bag 9 pushes the sliding ring 2 to move to the right. The sliding ring 2 drives the limiting ring 3 to move to the right through the spring 6, thereby compensating for the displacement distance of the cable end 111 relative to the limiting ring 3. When the cable end 111 slides relative to the limiting ring 3, gas is added to the telescopic gas bag 9 through the gas storage bag 8, so that the telescopic gas bag 9 extends to ensure that the two cable ends 111 continue to contact and ensure smooth circuit operation.

[0029] Example 2

[0030] Based on Embodiment 1, an aviation-grade waterproof wet-plug connector for smart gateways, such as... Figure 3 , Figure 4 and Figures 6-8 As shown, the connecting shell 1 is provided with horizontally evenly spaced compression blocks 12 near the air storage bladder 8. The compression blocks 12 are used to compress adjacent air storage bladders 8. The cross-section of the compression blocks 12 is arc-shaped to increase the contact area between the compression and the air storage bladder 8. The compression blocks 12 compress the air storage bladder 8, increasing the air pressure inside the air storage bladder 8. The compression blocks 12 are fixedly connected to guide blocks 13 that slide longitudinally and limit the connection shell 1. The side of the connecting shell 1 near the cable end 111 is provided with two vertically symmetrically distributed sliding grooves. The side of the guide block 13 away from the adjacent compression block 12 is located in the corresponding sliding groove of the connecting shell 1. The sliding groove of the connecting shell 1 is slidably connected to a sliding plate 14. Guide blocks are provided on both the front and rear sides of the sliding plate 14 to prevent the sliding plate 14 from falling out of the sliding groove of the adjacent connecting shell 1 and to guide the sliding plate 14. The sliding plate 14 is used to compress the adjacent guide block 13. The side of the guide block 13 away from the adjacent compression block 12 is provided with... The sliding plate 14 has an arc-shaped surface. When it contacts the guide block 13, it will squeeze the arc-shaped surface, causing the guide block 13 to drive the squeezing block 12 to squeeze the air storage bag 8. The side of the sliding plate 14 closest to the adjacent air storage bag 8 is hinged with an intercepting plate 15. The intercepting plate 15 consists of two plates symmetrically distributed front and back and a cylinder rotatably connected to the adjacent sliding plate 14. A torsion spring is provided at the hinge of the intercepting plate 15 and the adjacent sliding plate 14 to reset the intercepting plate 15 when no external force is applied. The cable end 111 is fixedly connected with a fixing ring 16. The fixing ring 16 is fixedly connected with two fixing blocks 17 symmetrically distributed vertically. The fixing blocks 17 slide in the groove of the adjacent connecting shell 1. The intercepting plate 15 is located on the moving path of the adjacent fixing block 17. The distance between the fixing block 17 and the adjacent intercepting plate 15 is greater than the distance between the positioning ring 7 and the limiting ring 3. When the left limiting ring 3 and the positioning ring 7 are in contact, the left fixing block 17 has not yet contacted the adjacent intercepting plate 15.

[0031] When cable end 111 is inserted into conductive module 101, taking the left cable end 111 as an example, cable end 111 drives two fixing blocks 17 to move to the right through fixing ring 16. Taking the upper fixing block 17 as an example, fixing block 17 moves to the right along the sliding groove of connecting shell 1. When fixing block 17 contacts intercepting plate 15, fixing block 17 presses intercepting plate 15 to make it rotate counterclockwise. The torsion spring on intercepting plate 15 stores force, such as... Figure 7 As shown, when the fixing block 17 moves to the right side of the interceptor plate 15, the torsion spring on the interceptor plate 15 resets, causing the interceptor plate 15 to rotate clockwise and reset. Finally, the fixing block 17 is located on the right side of the sliding plate 14, and the two cable ends 111 are connected.

[0032] In the initial state, the slide bar 10 is inserted into the trapezoidal groove of the adjacent sealing bar 11, the connecting hole 102 is in a connected state, and the air storage bag 8 is not in an inflated state, but in a normal state, to avoid air leakage due to the air storage bag 8 being in an inflated state for a long time (air bag leakage is generally slow leakage, releasing gas over a long period of time). This embodiment 2 is an optimization of embodiment 1. Taking the left cable end 111 as an example, when the cable end 111 does not slide relative to the limiting ring 3 and the cable is subjected to external force interference, the cable end 111 drives the fixing ring 16 to move to the left, and the fixing ring 16 drives the two fixing blocks 17 to move to the left, but the fixing blocks 17 do not contact the intercepting plate 15. When the external force disappears, the spring 6 resets and passes through the limiting ring 15. Positioning ring 3 drives wedge block 5 to move cable end 111 to the right. Cable end 111 drives two fixing blocks 17 to move to the right through fixing ring 16. When cable end 111 slides relative to limiting ring 3, taking the upper fixing block 17 as an example, after limiting ring 3 contacts positioning ring 7, fixing block 17 contacts intercepting plate 15. Subsequently, cable end 111 moves to the left relative to limiting ring 3. Fixing block 17 drives intercepting plate 15 to move to the left. Intercepting plate 15 drives sliding plate 14 to move to the left. After sliding plate 14 contacts rightmost guide block 13, it presses it upward. Guide block 13 drives sliding plate 14 to move upward. Sliding plate 14 presses air storage bladder 8, increasing the air pressure inside air storage bladder 8 and telescopic air bladder 9.

[0033] As the cable end 111 moves to the left relative to the limiting ring 3, the sliding plate 14 presses the guide block 13 from right to left, gradually increasing the air pressure inside the air reservoir 8 and the telescopic air reservoir 9. The guide blocks 13 on the right side are pressed by the sliding plate 14. When the external force disappears, the spring 6 resets and drives the cable end 111 to move to the right through the limiting ring 3 and the six wedge blocks 5. The cable end 111 drives the fixing block 17 to move to the right through the fixing ring 16. The fixing block 17 gradually moves away from the intercepting plate 15, and the position of the intercepting plate 15 remains unchanged. The intercepting plate 15 always presses the guide blocks 13 on the right side. During the reset process of the spring 6, the pressure inside the air reservoir 8 and the telescopic air reservoir 9 is released, causing the right side of the telescopic air reservoir 9 to move to the right, pushing the sliding ring 2 to move to the right. The sliding ring 2 drives the limiting ring 3 to move to the right through the spring 6, compensating for the distance difference caused by the relative sliding between the cable end 111 and the limiting ring 3.

[0034] When the cable end 111 slides relative to the limiting ring 3 again, the guide block 13 on the left side that was not squeezed will be squeezed, thereby continuing to compensate for the distance difference caused by the relative sliding between the cable end 111 and the limiting ring 3. This connector squeezes the guide block 13 so that the squeezing block 12 squeezes the air storage bag 8, increasing the air pressure inside the air storage bag 8 and the telescopic bag 9. When the cable end 111 slides relative to the limiting ring 3 multiple times, it can also reset the cable end 111, and avoid the problem of the cable end 111 not being able to reset due to air leakage in the air storage bag 8 (because the air leakage process is slow, it will not affect the process of the air pressure in the air storage bag 8 increasing to pressure release in a short time). This improves the applicability of this connector. The operator can install a pressure sensor on the arc surface of the guide block 13 away from the conductive module 101. When the pressure sensor is triggered, it proves that all guide blocks 13 are squeezed. The operator can use the pressure sensor to determine the position of the connector and perform maintenance.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A waterproof, wet-plug type connector for smart gateways, characterized in that, The device includes a connecting shell (1), in which a conductive module (101) is disposed in the middle. The conductive module (101) is used to protect the two cable ends (111) after docking. The connecting shell (1) has symmetrically distributed sliding rings (2) and symmetrically distributed limiting rings (3) slidably connected. The symmetrically distributed limiting rings (3) are located between the symmetrically distributed sliding rings (2). The limiting rings (3) are threadedly connected to a threaded sleeve (4) on the side of the limiting rings (3) closest to the conductive module (101). The connecting shell (1) is provided with an open groove for the adjacent threaded sleeves (4) to rotate. The limiting ring (3) is fixed with wedges (5) that are evenly spaced in the circumferential direction on one side near the conductive module (101). The wedges (5) are made of deformable steel. The threaded sleeve (4) is used to squeeze the adjacent wedges (5) and clamp the adjacent cable end (111). A spring (6) is fixed between the sliding ring (2) and the adjacent limiting ring (3). The spring (6) drives the cable end (111) to move through the limiting ring (3) and the wedges (5) that are evenly spaced in the circumferential direction, so that the symmetrically distributed cable ends (111) continue to be connected. The connecting shell (1) is fixed with symmetrically distributed positioning rings (7), which are located between the adjacent sliding ring (2) and the limiting ring (3). The positioning rings (7) are used to limit the adjacent limiting rings (3). The connecting shell (1) has symmetrically distributed air-storing bladders (8) on one side near the sliding ring (2). The connecting shell (1) also has telescopic bladders (9) on each side near the air-storing bladders (8). The telescopic bladders (9) are used to push the adjacent sliding ring (2). The side of the telescopic bladder (9) near the adjacent air-storing bladder (8) is fixed to the connecting shell (1). The side of the air-storing bladder (8) near the adjacent telescopic bladder (9) is fixed to the connecting shell (1). The connecting shell (1) has a connecting hole (102) for connecting the air-storing bladder (8) with the adjacent telescopic bladder (9). The connecting shell (1) is slidably connected to a slide rod (10) near the telescopic airbag (9). The slide rod (10) is slidably connected to the adjacent slide ring (2) and the adjacent positioning ring (7). The limiting ring (3) is used to squeeze the slide rod (10). The connecting shell (1) is slidably connected to a sealing rod (11) near the slide rod (10). The side of the sealing rod (11) near the adjacent slide rod (10) is a rectangular block, and the side of the sealing rod (11) away from the adjacent slide rod (10) is a cylindrical rod. The cylindrical part of the sealing rod (11) is used to seal the adjacent connecting hole (102). The cylindrical part of the sealing rod (11) is provided with a through hole for connecting the connecting hole (102). The rectangular block portion of the sealing rod (11) is provided with a trapezoidal groove, and the slide rod (10) moves the sealing rod (11) by pressing the trapezoidal groove of the adjacent sealing rod (11). The connecting shell (1) is provided with equally spaced compression blocks (12) near the air storage bladder (8). The compression blocks (12) are used to compress adjacent air storage bladders (8). Each compression block (12) is fixedly connected to a guide block (13) that limits and slides with the connecting shell (1). The connecting shell (1) is provided with symmetrically distributed sliding grooves on the side near the cable end (111). The side of the guide block (13) away from the adjacent compression block (12) is located in the corresponding sliding groove of the connecting shell (1). The sliding groove of the connecting shell (1) limits the sliding... A sliding plate (14) is dynamically connected to the cable end (111), the sliding plate (14) is used to press the adjacent guide block (13), the sliding plate (14) is hinged to an intercepting plate (15), a torsion spring is provided at the hinge of the intercepting plate (15) and the adjacent sliding plate (14), a fixing ring (16) is fixed to the cable end (111), the fixing ring (16) is fixed to symmetrically distributed fixing blocks (17), the fixing blocks (17) slide in the groove of the adjacent connecting shell (1), and the intercepting plate (15) is located on the moving path of the adjacent fixing block (17). By squeezing the guide block (13), the sliding plate (14) squeezes the telescopic airbag (9). When the cable end (111) and the limiting ring (3) slide relative to each other multiple times, the cable end (111) can also be reset.

2. The aviation plug waterproof wet-plug type connector for smart gateways according to claim 1, characterized in that, The distance between the positioning ring (7) and the adjacent limiting ring (3) is less than the maximum deformation of the spring (6).

3. The aviation plug waterproof wet-fit connector for a smart gateway according to claim 1, characterized in that, The distance between the fixed block (17) and the adjacent interceptor plate (15) is greater than the distance between the sliding ring (2) and the limiting ring (3).

4. The aviation plug waterproof wet-plug type connector for smart gateways according to claim 1, characterized in that, The cross-section of the compression block (12) is arc-shaped, which is used to increase the contact area between it and the air storage bag (8).

5. The aviation plug waterproof wet-plug type connector for smart gateways according to claim 1, characterized in that, The guide block (13) has an arc-shaped surface on the side away from the adjacent extrusion block (12).

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