A connector aviation plug for ring net cabinet

By designing the insertion mechanism, connection mechanism, and rotation clamping mechanism of the aviation plug for the ring main unit connector, the problem of the aviation plug falling off under vibration environment was solved, and the stable connection and reliability of the plug were achieved.

CN122246536APending Publication Date: 2026-06-19HUAIAN HONGZHEN INTELLIGENT EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAIAN HONGZHEN INTELLIGENT EQUIP CO LTD
Filing Date
2026-03-24
Publication Date
2026-06-19

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Abstract

This invention relates to the field of connector aviation plug technology, and discloses an aviation plug for ring main units, including a plug housing, a busbar fixedly connected to one end of the plug housing, and a tightening cap threadedly connected to the outer wall of the other end of the plug housing away from the busbar. Several sub-wires are arranged inside the busbar. In this invention, a compression spring pushes a vertical reset groove on a sliding inner liner to slide relative to a compression block. At this time, the compression block slides relative to the vertical reset groove. The sliding inner liner drives a push plate at one end of a push column to reset along a limiting groove. The push plate moves further, causing a compression ring at one end of a push frame to slide along a connecting elastic plate. When the compression ring slides to the right along the connecting elastic plate, the compression ring and the expanded connecting elastic plate are compressed. Under the action of the compression force, the connecting elastic plate and the connector pins are tightly fitted. This arrangement helps to ensure the stability of the plug connection.
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Description

Technical Field

[0001] This invention relates to the field of connector aviation plug technology, specifically to an aviation plug for ring main units. Background Technology

[0002] Aviation connectors, also known as plug sockets, are widely used in various electrical circuits to connect or disconnect circuits. Improving the reliability of aviation connectors is primarily the responsibility of the manufacturer. However, due to the wide variety of types and applications of aviation connectors, proper selection is also crucial for enhancing their reliability. Only through the joint efforts of both manufacturers and users can the intended functionality of aviation connectors be maximized.

[0003] Existing aviation connectors can generally meet people's usage requirements. However, aircraft will experience severe vibrations when encountering air currents. Under such severe vibrations, the connector connection may fall off. Therefore, ensuring that the internal pins of the connector are tightly connected is an important guarantee for aircraft safety. Summary of the Invention

[0004] The purpose of this invention is to provide an aviation plug for a ring main unit to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an aviation connector plug for ring main units, comprising a plug housing, a busbar fixedly connected to one end of the plug housing, a tightening cap threadedly connected to the outer wall of the other end of the plug housing away from the busbar, a plurality of sub-wires arranged inside the busbar, a base arranged on the right side of the plug housing, an insertion sleeve fixedly connected to one end of the base near the plug housing, a plurality of connector pins arranged inside the insertion sleeve, and further comprising: The insertion mechanism includes several pre-tightening grooves formed on the inner wall of the plug housing near the upper tightening cover. A sliding inner liner is slidably connected to the inner wall of the plug housing near the upper tightening cover. Several extrusion blocks are fixedly connected to the side wall of the insertion sleeve.

[0006] Furthermore, the insertion mechanism also includes several limiting blocks fixedly connected to the outer wall of the sliding liner. The limiting blocks are slidably connected inside the pre-tightening groove. A pushing ring is fixedly connected to the middle outer wall of the sliding liner. A compression spring is sleeved on the outer wall of the sliding liner. The end of the compression spring away from the pushing ring is fixedly connected to the inner wall of the plug housing. The end of the compression spring near the pushing ring is pressed against one side of the pushing ring.

[0007] Furthermore, the insertion mechanism also includes several guide grooves on the inner wall of the sliding liner near the upper cover, several rotating extrusion grooves on the inner wall of the sliding liner, several push columns fixedly connected to the end of the sliding liner away from the guide grooves, and several limiting grooves on the inner wall of the plug housing near the busbar.

[0008] Furthermore, the insertion mechanism also includes a push plate slidably connected to the end of the limiting groove away from the busbar, a number of limiting rings fixedly connected to the end of the push column away from the sliding liner, a number of sliding grooves opened on the push plate, the push column slidably connected inside the sliding grooves, and a number of push frames fixedly connected to the side of the push plate near the sliding liner.

[0009] Furthermore, the sliding liner is provided with a connecting mechanism, which includes a fixing plate 1 fixedly connected to the inner wall of the plug housing near the busbar. A fixing post is fixedly connected to the side of the fixing plate 1 away from the busbar, and a fixing plate 2 is fixedly connected to the end of the fixing post away from the fixing plate 1. The fixing plate 2 is slidably connected to the inner wall of the sliding liner.

[0010] Furthermore, the connecting mechanism also includes several connecting elastic plates fixedly connected to the side of the fixed plate away from the fixed column, and a compression ring fixedly connected to the end of the push frame away from the push plate, the compression ring being slidably connected to the side wall of the connecting elastic plates.

[0011] Furthermore, the outer wall of the sliding liner is provided with a rotating clamping mechanism, which includes several actuating plates fixedly connected to the side wall of the sliding liner. One side of each actuating plate is fixedly connected to an arc-shaped spring, and several limiting grooves are provided on the inner wall of the middle part of the plug housing.

[0012] Furthermore, the rotary clamping mechanism also includes a limiting sliding block that is slidably connected inside the limiting slide groove two. One side of the limiting sliding block is fixedly connected to the end of the arc spring away from the actuating piece. A rotary reset slide groove is provided on the inner wall of the sliding liner near the rotary extrusion groove, and a vertical reset slide groove is provided on the inner wall of the sliding liner near the rotary reset slide groove.

[0013] The present invention has the following beneficial effects: (1) In this invention, when the sliding inner liner on the arc spring presses the actuating piece rotates, the pressing round block and the rotating reset slide groove slide relative to each other. When the pressing round block slides to the end of the rotating reset slide groove away from the rotating pressing groove, at the same time, several connector pins inserted into the sleeve and the corresponding connecting elastic plates are connected. Under the action of the pressing spring, the pressing spring pushes the vertical reset slide groove on the sliding inner liner to slide relative to the pressing round block. At this time, the pressing round block slides relative to each other along the vertical reset slide groove. The sliding inner liner drives the push plate at one end of the push column to reset along the limiting slide groove. The push plate moves to the right and drives the pressing ring at one end of the push frame to slide along the connecting elastic plate. When the pressing ring slides to the right along the connecting elastic plate, the pressing ring and the connecting elastic plate in the expanded state are pressed. Under the action of the pressing force, the connecting elastic plate and the connector pin are tightly attached. This setting is conducive to ensuring the stability of the plug connection.

[0014] (2) In this invention, when using the aviation plug for the ring main unit connector, firstly, the base of the device is fixedly installed inside the ring main unit. At this time, the plug housing is connected to the insertion sleeve on the base. The plug housing is manually adjusted so that the insertion sleeve slides along the inner wall of the sliding inner liner at one end of the plug housing. By aligning the extrusion block with the guide groove, the extrusion block slides along the guide groove into the rotating extrusion groove. At this time, by manually pressing the plug housing, the extrusion block on the insertion sleeve is pushed into the plug housing along the rotating extrusion groove. Since the limiting block is slidably connected inside the pre-tightening groove, the extrusion block pushes the limiting block on the sliding inner liner into the plug housing along the pre-tightening groove. During the sliding motion, the pushing ring on the sliding liner compresses the compression spring. The sliding liner pushes the pushing plate at one end of the pushing column to slide backward along the limiting slide groove. The pushing plate drives several pushing frames to move backward, and the pushing frames drive the compression ring to move backward along the outer wall of the connecting elastic plate. When the compression ring moves backward, the connecting elastic plate expands outward under its own elasticity. This setting is conducive to expanding the opening of the connecting elastic plate, thereby facilitating the insertion of the connector pin inside the sleeve into the interior of the connecting elastic plate. Therefore, when the connector pin on the sleeve approaches the connecting elastic plate, the connecting elastic plate remains in an expanded state, thereby ensuring that several connector pins are accurately connected with the connecting elastic plate.

[0015] (3) In this invention, by setting a guide groove, when the connector pins manually inserted into the sleeve are aligned with the corresponding connecting elastic plates, the extrusion block can be aligned with the guide groove. This setting is conducive to aligning several connector pins with the corresponding connecting elastic plates, thereby ensuring that the plug connection will not be misaligned. The limiting ring set at one end of the push post is conducive to ensuring that the push post can slide inside the sliding groove while pushing the push plate. This setting ensures that the plug can be used normally and stably.

[0016] (4) In this invention, when the limiting block on the sliding inner liner slides a certain distance along the pre-tightening slide groove, the limiting block on the sliding inner liner disengages from the pre-tightening slide groove. At this time, the extrusion block slides along the rotating extrusion groove. Since the insertion sleeve on the extrusion block remains fixed, when the plug housing is pushed towards the end close to the base, the extrusion block slides along the rotating extrusion groove. At this time, the extrusion block causes the sliding inner liner to rotate by extruding the rotating extrusion groove. The actuating plate on the outer wall of the sliding inner liner rotates and extrudes the arc spring between the actuating plate and the limiting sliding block. At this time, the arc spring is compressed and contracted. When the extrusion block moves to the junction of the rotating extrusion groove and the rotating reset slide groove, the sliding inner liner rotates in the opposite direction under the elastic force of the arc spring. The rotation of the sliding inner liner causes relative sliding between the rotating reset slide groove and the extrusion block. When the extrusion block slides inside the rotating reset slide groove, the sliding inner liner on the device locks the insertion sleeve on the extrusion block. This setting helps to ensure that the plug will not be dislodged by vibration.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of A in the middle; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the plug housing structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the plug housing of the present invention; Figure 6 This is a schematic cross-sectional view of the plug housing of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of B in the middle; Figure 8 This is a schematic diagram of the rotating clamping mechanism of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of C; Figure 10This is a schematic diagram of the structure of the elastic sheet in the expanded state according to the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Plug housing; 11. Busbar; 12. Tightening cover; 13. Sub-wire; 14. Base; 15. Insertion sleeve; 16. Connector pin; 2. Insertion mechanism; 201. Pre-tightening groove; 202. Sliding liner; 203. Extrusion block; 204. Limiting block; 205. Pushing ring; 206. Extrusion spring; 207. Guide groove; 208. Rotary extrusion groove; 209. Pushing column; 210. Limiting groove one; 21 1. Push plate; 212. Limiting ring; 213. Sliding groove; 214. Push frame; 3. Connecting mechanism; 301. Fixing plate one; 302. Fixing column; 303. Fixing plate two; 304. Connecting elastic sheet; 305. Compression ring; 4. Rotary clamping mechanism; 401. Actuating piece; 402. Arc spring; 403. Limiting slide groove two; 404. Limiting sliding block; 405. Rotary reset slide groove; 406. Vertical reset slide groove. 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] Example 1, please refer to Figures 1-9 As shown, this invention is an aviation connector plug for ring main units, including a plug housing 1, a busbar 11 fixedly connected to one end of the plug housing 1, a tightening cap 12 threadedly connected to the outer wall of the other end of the plug housing 1 away from the busbar 11, a plurality of sub-wires 13 disposed inside the busbar 11, a base 14 disposed on the right side of the plug housing 1, an insertion sleeve 15 fixedly connected to one end of the base 14 near the plug housing 1, a plurality of connector pins 16 disposed inside the insertion sleeve 15, and further comprising: Insertion mechanism 2 includes several pre-tightening grooves 201 formed on the inner wall of the plug housing 1 near the upper tightening cover 12, a sliding inner liner 202 slidably connected to the inner wall of the plug housing 1 near the upper tightening cover 12, and several extrusion blocks 203 fixedly connected to the side wall of the insertion sleeve 15.

[0023] The insertion mechanism 2 also includes several limiting blocks 204 fixedly connected to the outer wall of the sliding inner liner 202. The limiting blocks 204 are slidably connected inside the pre-tightening groove 201. A pushing ring 205 is fixedly connected to the middle outer wall of the sliding inner liner 202. A compression spring 206 is sleeved on the outer wall of the sliding inner liner 202. The end of the compression spring 206 away from the pushing ring 205 is fixedly connected to the inner wall of the plug housing 1. The end of the compression spring 206 close to the pushing ring 205 is pressed against one side of the pushing ring 205.

[0024] The insertion mechanism 2 also includes several guide grooves 207 formed on the inner wall of the sliding liner 202 near the upper cover 12, several rotating extrusion grooves 208 formed on the inner wall of the sliding liner 202, several push columns 209 fixedly connected to the end of the sliding liner 202 away from the guide grooves 207, and several limiting grooves 210 formed on the inner wall of the plug housing 1 near the busbar 11.

[0025] The insertion mechanism 2 also includes a push plate 211 slidably connected to the end of the limiting groove 210 away from the busbar 11. Several limiting rings 212 are fixedly connected to the end of the push column 209 away from the sliding liner 202. Several sliding grooves 213 are provided on the push plate 211, and the push column 209 is slidably connected inside the sliding grooves 213. Several push frames 214 are fixedly connected to the side of the push plate 211 near the sliding liner 202. The function of this component is to first connect the device to the aviation plug of the ring main unit connector when using this connector. The base 14 is fixedly installed inside the ring main unit. The plug housing 1 is then aligned with the insertion sleeve 15 on the base 14. The plug housing 1 is manually adjusted so that the insertion sleeve 15 slides along the inner wall of the sliding inner liner 202 at one end of the plug housing 1. The extrusion block 203 is aligned with the guide groove 207, causing the extrusion block 203 to slide along the guide groove 207 into the rotating extrusion groove 208. Then, by manually pressing the plug housing 1, the extrusion block 203 on the insertion sleeve 15 is pushed into the plug housing 1 along the rotating extrusion groove 208. As the limiting block 204 is slidably connected inside the pre-tightening groove 201, the extrusion block 203 pushes the limiting block 204 on the sliding inner liner 202 to slide along the pre-tightening groove 201 into the plug housing 1. At this time, the pushing ring 205 on the sliding inner liner 202 compresses the extrusion spring 206, and the sliding inner liner 202 pushes the pushing plate 211 at one end of the pushing column 209 to slide backward along the limiting groove 210. The pushing plate 211 drives several pushing frames 214 to move backward. By setting the guide groove 207, when the hand... When the connector pins 16 inside the insert sleeve 15 are aligned with the corresponding connecting elastic pieces 304, the extrusion block 203 can be aligned with the guide groove 207. This arrangement helps to align several connector pins 16 with the corresponding connecting elastic pieces 304, thus ensuring that the plug connection will not be misaligned. The limiting ring 212 set at one end of the push post 209 helps to ensure that the push post 209 can slide inside the sliding groove 213 while pushing the push plate 211. This arrangement ensures that the plug can be used normally and stably.

[0026] Example 2 differs from Example 1 in that: Figures 1-10 As shown, the sliding inner liner 202 is provided with a connecting mechanism 3. The connecting mechanism 3 includes a fixing plate 301 fixedly connected to the inner wall of the plug housing 1 near the busbar 11. A fixing post 302 is fixedly connected to the side of the fixing plate 301 away from the busbar 11. A fixing plate 303 is fixedly connected to the end of the fixing post 302 away from the fixing plate 301. The fixing plate 303 is slidably connected to the inner wall of the sliding inner liner 202.

[0027] The connecting mechanism 3 also includes several connecting elastic plates 304 fixedly connected to the side of the fixed plate 303 away from the fixed column 302. A compression ring 305 is fixedly connected to one end of the push frame 214 away from the push plate 211. The compression ring 305 is slidably connected to the side wall of the connecting elastic plates 304. The function of this component is that when using the aviation plug for the ring main unit connector, firstly, the base 14 in this device is fixedly installed inside the ring main unit. At this time, the plug housing 1 is aligned with the insertion sleeve 15 on the base 14. The plug housing 1 is manually adjusted so that the insertion sleeve 15 slides along the inner wall of the sliding inner liner 202 at one end of the plug housing 1. By aligning the compression block 203 with the guide groove 207, the compression block 203 slides along the guide groove 207 into the rotating compression groove 208. At this time, by manually pressing the plug housing 1, the compression block 203 on the insertion sleeve 15 is pushed into the plug housing 1 along the rotating compression groove 208. Because the limiting block 204 is slidably connected inside the pre-tightening groove 201, The extrusion block 203 pushes the limiting block 204 on the sliding inner liner 202 to slide along the pre-tightening groove 201 into the plug housing 1. At this time, the pushing ring 205 on the sliding inner liner 202 compresses the extrusion spring 206. The sliding inner liner 202 pushes the pushing plate 211 at one end of the pushing column 209 to slide backward along the limiting groove 210. The pushing plate 211 drives several pushing frames 214 to move backward. The pushing frames 214 drive the extrusion ring 305 to move backward along the outer wall of the connecting elastic piece 304. When the extrusion ring 305 moves backward, the connecting elastic piece 304 expands outward under its own elasticity. This setting is conducive to expanding the opening of the connecting elastic piece 304, thereby facilitating the insertion of the connector pin 16 into the sleeve 15. Therefore, when the connector pin 16 on the sleeve 15 is close to the connecting elastic piece 304, the connecting elastic piece 304 remains in an expanded state, thereby ensuring that several connector pins 16 are accurately connected with the connecting elastic piece 304.

[0028] The outer wall of the sliding inner liner 202 is provided with a rotating clamping mechanism 4. The rotating clamping mechanism 4 includes several actuating plates 401 fixedly connected to the side wall of the sliding inner liner 202. An arc spring 402 is fixedly connected to one side of the actuating plate 401. Several limiting grooves 403 are opened in the middle inner wall of the plug housing 1.

[0029] The rotary clamping mechanism 4 also includes a limiting sliding block 404 slidably connected inside the limiting slide groove 403. One side of the limiting sliding block 404 is fixedly connected to the end of the arc spring 402 away from the actuating plate 401. A rotary reset slide groove 405 is formed on the inner wall of the sliding liner 202 near the rotary extrusion groove 208, and a vertical reset slide groove 406 is formed on the inner wall of the sliding liner 202 near the rotary reset slide groove 405. The function of this component is that when the arc spring 402 extrudes the sliding liner 202 on the actuating plate 401 and rotates, the extrusion block 203 and the rotary reset slide groove 405 slide relative to each other. When the extrusion block 203 slides to the end of the rotary reset slide groove 405 away from the rotary extrusion groove 208, several connector pins 16 inserted into the sleeve 15 are simultaneously connected to the corresponding elastic components. After the plate 304 is docked, under the elastic force of the compression spring 206, the compression spring 206 pushes the vertical reset groove 406 on the sliding inner liner 202 to slide relative to the compression block 203. At this time, the compression block 203 slides relative to the vertical reset groove 406. The sliding inner liner 202 drives the push plate 211 at one end of the push column 209 to reset along the limit groove 210. The push plate 211 moves to the right, causing the compression ring 305 at one end of the push frame 214 to slide to the right along the connecting elastic piece 304. When the compression ring 305 slides to the right along the connecting elastic piece 304, the compression ring 305 and the connecting elastic piece 304 in the expanded state are squeezed. Under the action of the squeezing force, the connecting elastic piece 304 and the connector pin 16 are tightly fitted. This setting helps to ensure the stability of the plug connection.

[0030] One specific application of this embodiment is: When using the aviation plug for the ring main unit connector, first, fix the base 14 of the device inside the ring main unit. Then, align the plug housing 1 with the insertion sleeve 15 on the base 14. Manually adjust the plug housing 1 so that the insertion sleeve 15 slides along the inner wall of the sliding inner liner 202 at one end of the plug housing 1. Align the extrusion block 203 with the guide groove 207 so that the extrusion block 203 slides along the guide groove 207 into the rotating extrusion groove 208. Then, manually press the plug housing 1 to move the extrusion block 203 on the insertion sleeve 15 along the rotating... The extrusion groove 208 pushes into the plug housing 1. Since the limiting block 204 is slidably connected inside the pre-tightening groove 201, the extrusion block 203 pushes the limiting block 204 on the sliding inner liner 202 to slide along the pre-tightening groove 201 into the plug housing 1. At this time, the pushing ring 205 on the sliding inner liner 202 compresses the extrusion spring 206. The sliding inner liner 202 pushes the pushing plate 211 at one end of the pushing column 209 to slide backward along the limiting groove 210. The pushing plate 211 drives several pushing frames 214 to move backward, and the pushing frames 214 drive the extrusion... The ring 305 moves backward along the outer wall of the connecting elastic piece 304. When the compression ring 305 moves backward, the connecting elastic piece 304 expands outward under its own elasticity. This arrangement facilitates the expansion of the opening of the connecting elastic piece 304, thereby making it easier for the connector pins 16 inserted into the sleeve 15 to be inserted into the connecting elastic piece 304. Therefore, while the connector pins 16 on the sleeve 15 are close to the connecting elastic piece 304, the connecting elastic piece 304 remains in an expanded state, thus ensuring that several connector pins 16 are accurately mated with the connecting elastic piece 304. By setting the guide groove 207, when the connector pin 16 manually inserted into the sleeve 15 is aligned with the corresponding connecting elastic piece 304, the extrusion block 203 can be aligned with the guide groove 207. This setting helps to align several connector pins 16 with the corresponding connecting elastic pieces 304, thereby ensuring that the plug connection will not be misaligned. The limiting ring 212 set at one end of the push post 209 helps to ensure that the push post 209 can slide inside the sliding groove 213 while pushing the push plate 211. This setting ensures that the plug can be used normally and stably. When the limiting block 204 on the sliding inner liner 202 slides a certain distance along the pre-tightening groove 201, the limiting block 204 on the sliding inner liner 202 disengages from the pre-tightening groove 201. At this time, the extrusion block 203 slides along the rotating extrusion groove 208. Since the insertion sleeve 15 on the extrusion block 203 remains fixed, when the plug housing 1 is pushed towards the end near the base 14, the extrusion block 203 slides along the rotating extrusion groove 208. At this time, the extrusion block 203 causes the sliding inner liner 202 to rotate by extruding the rotating extrusion groove 208, and the actuating piece 401 on the outer wall of the sliding inner liner 202 rotates and extrudes. The arc-shaped spring 402 between the actuating plate 401 and the limiting sliding block 404 is compressed and contracted. When the pressing block 203 moves to the junction of the rotating pressing groove 208 and the rotating reset groove 405, the sliding liner 202 rotates in the opposite direction under the elastic force of the arc-shaped spring 402. The rotation of the sliding liner 202 causes relative sliding between the rotating reset groove 405 and the pressing block 203. When the pressing block 203 slides inside the rotating reset groove 405, the sliding liner 202 on the device locks the insertion sleeve 15 on the pressing block 203. The design helps to ensure that the plug will not fall off due to vibration. When the arc spring 402 compresses the sliding inner liner 202 on the actuating plate 401 and causes it to rotate, the compression block 203 and the rotary reset slide 405 slide relative to each other. When the compression block 203 slides to the end of the rotary reset slide 405 away from the rotary compression groove 208, at the same time, several connector pins 16 inserted into the sleeve 15 are connected to the corresponding connecting elastic plates 304. Under the elastic force of the compression spring 206, the compression spring 206 pushes the vertical reset slide 406 on the sliding inner liner 202 to slide relative to the compression block 203. At this time, the extrusion block 203 slides relative to the vertical reset slide groove 406. The sliding liner 202 slides and drives the push plate 211 at one end of the push column 209 to reset along the limit slide groove 210. The push plate 211 moves to the right and drives the extrusion ring 305 at one end of the push frame 214 to slide to the right along the connecting elastic piece 304. When the extrusion ring 305 slides to the right along the connecting elastic piece 304, the extrusion ring 305 and the connecting elastic piece 304 in the expanded state are squeezed. Under the action of the squeezing force, the connecting elastic piece 304 and the connector pin 16 are tightly attached. This setting is conducive to ensuring the stability of the plug connection.

[0031] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An aviation connector plug for a ring main unit, comprising a plug housing (1), wherein a busbar (11) is fixedly connected to one end of the plug housing (1), and a tightening cap (12) is threadedly connected to the outer wall of the end of the plug housing (1) away from the busbar (11), wherein a plurality of sub-wires (13) are arranged inside the busbar (11), and a base (14) is arranged on the right side of the plug housing (1), wherein an insertion sleeve (15) is fixedly connected to one end of the base (14) near the plug housing (1), and a plurality of connector pins (16) are arranged inside the insertion sleeve (15), characterized in that, Also includes: Insertion mechanism (2), the insertion mechanism (2) includes a number of pre-tightening grooves (201) opened on the inner wall of the plug housing (1) near the upper tightening cover (12), the inner wall of the plug housing (1) near the upper tightening cover (12) is slidably connected with a sliding inner liner (202), and the side wall of the insertion sleeve (15) is fixedly connected with a number of extrusion round blocks (203).

2. The connector aviation plug for ring main unit according to claim 1, characterized in that: The insertion mechanism (2) further includes several limiting blocks (204) fixedly connected to the outer wall of the sliding liner (202). The limiting blocks (204) are slidably connected inside the pre-tightening groove (201). A pushing ring (205) is fixedly connected to the middle outer wall of the sliding liner (202). A compression spring (206) is sleeved on the outer wall of the sliding liner (202). The end of the compression spring (206) away from the pushing ring (205) is fixedly connected to the inner wall of the plug housing (1). The end of the compression spring (206) close to the pushing ring (205) is pressed against one side of the pushing ring (205).

3. The connector aviation plug for ring main unit according to claim 2, characterized in that: The insertion mechanism (2) further includes several guide grooves (207) on the inner wall of the sliding liner (202) near the upper cover (12), several rotating extrusion grooves (208) on the inner wall of the sliding liner (202), several push columns (209) fixedly connected to the end of the sliding liner (202) away from the guide grooves (207), and several limiting grooves (210) on the inner wall of the plug housing (1) near the busbar (11).

4. The connector aviation plug for ring main unit according to claim 3, characterized in that: The insertion mechanism (2) further includes a push plate (211) slidably connected to the end of the limiting groove (210) away from the busbar (11). The end of the push column (209) away from the sliding liner (202) is fixedly connected with several limiting rings (212). Several sliding grooves (213) are opened on the push plate (211). The push column (209) is slidably connected inside the sliding groove (213). Several push frames (214) are fixedly connected to the side of the push plate (211) near the sliding liner (202).

5. The aviation plug for a ring main unit according to claim 4, characterized in that: The sliding liner (202) is provided with a connecting mechanism (3). The connecting mechanism (3) includes a fixing plate (301) fixedly connected to the inner wall of the plug housing (1) near the busbar (11). A fixing post (302) is fixedly connected to the side of the fixing plate (301) away from the busbar (11). A fixing plate (303) is fixedly connected to the end of the fixing post (302) away from the fixing plate (301). The fixing plate (303) is slidably connected to the inner wall of the sliding liner (202).

6. The aviation plug for a ring main unit according to claim 5, characterized in that: The connecting mechanism (3) further includes a number of connecting elastic plates (304) fixedly connected to the side of the fixed plate (303) away from the fixed column (302). The push frame (214) is fixedly connected to a compression ring (305) at one end away from the push plate (211). The compression ring (305) is slidably connected to the side wall of the connecting elastic plate (304).

7. The aviation plug for a ring main unit according to claim 6, characterized in that: The outer wall of the sliding inner liner (202) is provided with a rotating clamping mechanism (4). The rotating clamping mechanism (4) includes several actuating pieces (401) fixedly connected to the side wall of the sliding inner liner (202). An arc spring (402) is fixedly connected to one side of the actuating piece (401). Several limiting grooves (403) are opened in the middle inner wall of the plug shell (1).

8. The aviation plug for a ring main unit according to claim 7, characterized in that: The rotary clamping mechanism (4) further includes a limiting sliding block (404) slidably connected inside the limiting sliding groove (403). One side of the limiting sliding block (404) is fixedly connected to the end of the arc spring (402) away from the actuating piece (401). The inner wall of the sliding liner (202) near the rotary extrusion groove (208) is provided with a rotary reset sliding groove (405). The inner wall of the sliding liner (202) near the rotary reset sliding groove (405) is provided with a vertical reset sliding groove (406).