Plug structure and electric connector thereof

Abstract

The invention discloses a plug structure and an electric connector thereof, and belongs to the field of electric connectors, and the plug structure comprises a plug installation block, one side of the plug installation block is fixedly connected with a wire, one side of the plug installation block is fixedly connected with a plug, and a conductive column is arranged in the plug. The outer surface of the plug installation block is sleeved with a sealing assembly used for protecting the conductive column, and the sealing assembly comprises a displacement sliding groove formed in the outer side of the plug installation block, a protection shell arranged on the outer side of the plug installation block in a sleeving mode and a driving assembly fixed to the top of the outer surface of the plug installation block. The two sealing plates can be effectively fixed in the protective shell through mutual adsorption between the two magnets, a plug is sealed in the protective shell, the probability that impurities enter the positions near the conductive columns can be effectively reduced, water can be effectively prevented from making contact with the plug and entering the positions near the conductive columns, and the service life of the plug is prolonged. And the accident of short circuit is avoided.

Description

Technical Field

[0001] The present invention relates to the field of electrical connectors, and more particularly to a plug structure and an electrical connector thereof. Background Art

[0002] At present, with the continuous development and progress of electronic technology, various electronic products are rapidly entering people's daily lives, such as mobile phones, tablet computers, digital cameras, etc. As the number of electronic products continues to increase, charging electronic products has become a part of people's daily lives. In life, the number of wall sockets is insufficient, and multi-hole sockets are installed to meet the needs of users.

[0003] When traditional plugs are in use, they are directly exposed to the outside world without attention to protection. However, during use, a certain amount of dust and hard impurities may enter the socket or the conductive column, causing the plug to be unable to be inserted into the plug slot, resulting in poor contact. In severe cases, it may cause excessive local current, damage the plug and plug connector, and even cause a fire. Summary of the invention

[0004] In view of the problems existing in the prior art, an object of the present invention is to provide a plug structure and an electrical connector thereof.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A plug structure and an electrical connector thereof, comprising a plug mounting block, one side of which is fixedly connected to a wire, one side of which is fixedly connected to a plug, a conductive column is arranged inside the plug, and a sealing component for protecting the conductive column is sleeved on the outer surface of the plug mounting block.

[0007] The sealing assembly includes a displacement groove opened on the outside of the plug mounting block, a protective shell sleeved on the outside of the plug mounting block, and a driving assembly fixed to the top of the outer surface of the plug mounting block, the outer surface of the protective shell is symmetrically threaded with two threaded rods, the outer surface of the protective shell is provided with a through groove near the bottom, the inner surface of the protective shell is fixedly connected to two support plates, the interior of the two support plates is slidably connected to a sealing plate, and one side of the sealing plate is fixedly connected to a magnet.

[0008] Furthermore, the outer surface of the protective shell is slidably connected to a driving assembly, opening and closing assemblies are provided on both sides of the sealing plate, one side of the threaded rod extends to slide inside the displacement slide groove, one side of the sealing plate is located inside the through groove, and the sealing plate and the through groove slide and fit with each other.

[0009] Furthermore, the opening and closing assembly includes grooves opened on both sides of the sealing plate, a transmission rod rotating on the top of the support plate and two worm gears symmetrically connected to the inside of the protective shell, one side of the worm gear extends out of the interior of the protective shell and is fixedly connected to the second gear, the bottom of the transmission rod extends to the inside of the groove, the top and bottom of the transmission rod are respectively fixedly connected to the worm wheel and the first gear, and one side of the inner surface of the groove is fixedly connected to a rack.

[0010] Furthermore, the worm and the worm wheel are at the same height, the worm and the worm wheel are meshed with each other, and the first gear is located inside the groove and meshed with the rack.

[0011] Furthermore, the driving assembly includes a driving rod fixed on the outer surface of the plug mounting block and an annular rack rotatably connected to the outer surface of the protective shell, the upper surface of the annular rack is symmetrically fixedly connected to two vertical grooves, the tops of the two vertical grooves are fixedly connected to inclined grooves, and one side of the driving rod is fixedly connected to a cylindrical block.

[0012] Furthermore, the annular rack is located above the two second gears, the annular rack is meshed with the second gears, and the cylindrical block is slidably matched with the inclined groove and the vertical groove.

[0013] An electrical connector with a plug structure comprises a mounting base, a connector assembly is fixedly connected to the upper surface of the mounting base, the connector assembly comprises a connecting base fixed to the upper surface of the mounting base, a plug groove is provided in the middle of the upper surface of the connecting base, three sockets which are adapted to the conductive posts are fixedly connected to the bottom of the plug groove, an annular groove is provided on the upper surface of the connecting base, two arc grooves are symmetrically provided on the inner surface of the annular groove, a limiting assembly is slidably connected to the edge of the upper surface of the connecting base, connecting assemblies are arranged on both sides of the inner surface of the plug groove, and the width of the plug is smaller than the width of the plug groove.

[0014] Furthermore, the limiting assembly includes a first circular ring sliding at the edge of the upper surface of the connecting seat and two plug blocks fixed at the bottom edge of the outer surface of the protective shell, the inner surface of the first circular ring is symmetrically fixedly connected to two fixing plates, the interior of the fixing plate is slidingly connected to a telescopic rod, the bottom of the telescopic rod is fixedly connected to a C-shaped block, and the outer surface of the telescopic rod is sleeved with a first spring.

[0015] Furthermore, two sides of the C-shaped clamping block are arranged obliquely, the C-shaped clamping block is located inside the annular groove, the C-shaped clamping block and the inserting block are adapted to each other, and the inserting block and the arc groove are adapted to each other.

[0016] Furthermore, the connecting component includes storage grooves opened on both sides of the inner surface of the plug groove, a second ring rotatably connected to the outside of the connecting seat and a card slot opened on both sides of the plug, two driving inclined grooves are evenly opened on the upper surface of the second ring, two second springs are fixedly connected to one side of the inner surface of the storage groove, one side of the two second springs is fixedly connected to a trapezoidal block, one side of the trapezoidal block is fixedly connected to a pull rod, the outer surface of the pull rod is fixedly connected to a protrusion, the top of the protrusion passes through the driving inclined groove and slides and fits with each other.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This solution sets up a sealing component, and the two sealing plates can be effectively fixed inside the protective shell through the mutual adsorption between two magnets, and the plug can be sealed inside the protective shell, which can not only effectively reduce the probability of impurities entering the vicinity of the conductive column, but also effectively prevent water from contacting the plug and entering the vicinity of the conductive column, thereby avoiding the accidental short circuit.

[0019] 2. This solution sets up an opening and closing component, and rotating the second gear can drive the two sealing plates to slide away from each other inside the support plate through transmission. Since the worm and the worm wheel are meshing with each other, the sealing plates cannot shake or move arbitrarily inside the support plate. Therefore, during the process of plugging in the plug, the sealing plates will not hinder its movement, ensuring that the plugging is quick and smooth.

[0020] 3. In this scheme, a driving assembly is set up. When the driving rod moves in a straight line, the driving rod will enter the interior of the inclined groove, and the inclined groove is in an inclined state. Therefore, when the driving rod continues to move downward, it will drive the inclined groove to rotate along the outer wall of the protective shell. The inclined groove will simultaneously drive the vertical groove and the annular rack to rotate. The rotation of the annular rack will drive the second gear meshing with it to rotate, and the sealing plate will be driven to open quickly through the transmission. When the plug is plugged in, the sealing plate can be opened synchronously, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 The sealing assembly structure of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 3 It is a schematic diagram of the plug mounting block structure of the present invention;

[0024] Figure 4 The sealing assembly structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 5 It is a schematic diagram of the structure of the opening and closing component of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the connector assembly of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0028] Figure 8 The cross-sectional structure of the connection seat of the present invention is shown in FIG. Figure 1 ;

[0029] Fig. 9 The cross-sectional structure of the connection seat of the present invention is shown in FIG. Figure 2 .

[0030] Description of the numbers in the figure:

[0031] 1. Mounting seat;

[0032] 2. Connector assembly; 21. Connecting seat; 22. Plug slot; 23. Jack;

[0033] 24. Limiting assembly; 241. First ring; 242. Fixing plate; 243. C-shaped block; 244. Telescopic rod; 245. First spring; 246. Insert block;

[0034] 25, connecting assembly; 251, receiving groove; 252, second spring; 253, pull rod; 254, protrusion; 255, second ring; 256, trapezoidal block; 257, slot; 258, driving inclined groove;

[0035] 26. arc groove; 27. annular groove;

[0036] 3. Plug mounting block; 4. Wire;

[0037] 5. Sealing assembly; 51. Protective shell; 52. Displacement slide groove; 53. Through groove; 54. Threaded rod;

[0038] 55, opening and closing assembly; 551, groove; 552, rack; 553, first gear; 554, worm gear; 555, second gear; 556, worm; 557, transmission rod;

[0039] 56, driving assembly; 561, driving rod; 562, cylindrical block; 563, inclined slot; 564, vertical slot; 565, annular rack;

[0040] 57. Support plate; 58. Sealing plate; 59. Magnet;

[0041] 6. Plug; 7. Conductive column. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0043] See also Figures 1 to 9 A plug structure and an electrical connector thereof include a plug mounting block 3, a wire 4 is fixedly connected to one side of the plug mounting block 3, a plug 6 is fixedly connected to one side of the plug mounting block 3, a conductive column 7 is arranged inside the plug 6, and a sealing component 5 for protecting the conductive column 7 is sleeved on the outer surface of the plug mounting block 3.

[0044] like Figure 2 - Figure 4 As shown, the sealing assembly 5 includes a displacement groove 52 opened on the outside of the plug mounting block 3, a protective shell 51 sleeved on the outside of the plug mounting block 3 and a driving assembly 56 fixed to the top of the outer surface of the plug mounting block 3, the outer surface of the protective shell 51 is symmetrically threaded with two threaded rods 54, the outer surface of the protective shell 51 is provided with a through groove 53 near the bottom, the inner surface of the protective shell 51 is fixedly connected with two support plates 57, the inner part of the two support plates 57 is slidably connected with a sealing plate 58, and one side of the sealing plate 58 is fixedly connected with a magnet 59.

[0045] The outer surface of the protective shell 51 is slidably connected to a driving assembly 56, and opening and closing assemblies 55 are arranged on both sides of the sealing plate 58. One side of the threaded rod 54 extends to slide inside the displacement slide groove 52, and one side of the sealing plate 58 is located inside the through groove 53. The sealing plate 58 and the through groove 53 slide and fit with each other.

[0046] The plug is exposed to the outside world during use, and it is very easy for impurities to enter, blocking the gap near the conductive column 7, which is easy to cause poor contact when plugging. At this time, the plug 6 needs to be protected and sealed. A protective shell 51 is slidably connected to the outside of the plug mounting block 3, and a support plate 57 is provided inside the protective shell 51. A sealing plate 58 is slidably provided between the support plates 57. The sealing plates 58 slide inside the support plates 57 and approach each other, so as to seal one side of the protective shell 51. At the same time, the sealing plate 58 blocks and seals the through groove 53. The two sealing plates 58 are connected by two The mutual adsorption between the magnets 59 can effectively fix the sealing plate 58 inside the protective shell 51, and seal the plug 6 inside the protective shell 51, which can not only effectively reduce the probability of impurities entering the vicinity of the conductive column 7, but also effectively prevent water from contacting the plug 6 and entering the vicinity of the conductive column 7, thereby avoiding the accidental short circuit. The protective shell 51 can be self-locked by rotating the two threaded rods 54, so that the protective shell 51 and the plug mounting block 3 are in a relatively fixed state, thereby preventing the protective shell 51 from sliding freely on the outside of the plug mounting block 3.

[0047] like Figure 5 As shown, the opening and closing assembly 55 includes grooves 551 opened on both sides of the sealing plate 58, a transmission rod 557 rotating on the top of the support plate 57 and two worm gears 556 symmetrically connected to the inside of the protective shell 51, one side of the worm gear 556 extends out of the inside of the protective shell 51 and is fixedly connected to the second gear 555, the bottom of the transmission rod 557 extends to the inside of the groove 551, the top and bottom of the transmission rod 557 are respectively fixedly connected to the worm wheel 554 and the first gear 553, and one side of the inner surface of the groove 551 is fixedly connected to the rack 552.

[0048] The worm 556 and the worm wheel 554 are at the same height, and the worm 556 and the worm wheel 554 are meshed with each other. The first gear 553 is located inside the groove 551 and is meshed with the rack 552 .

[0049] When the plug 6 and the conductive column 7 are needed to be used, the two sealing plates 58 need to be slid to both sides, and the two sealing plates 58 need to be slid manually. However, when the two sealing plates 58 are unfolded, when the plug 6 is inserted, the sealing plates 58 will slide inside the support plate 57, and the plug 6 will be blocked by one of the sealing plates 58 during movement, which increases the trouble of plugging. Therefore, when the two sealing plates 58 are opened, the second gear 555 is rotated to drive the worm 556 to rotate, and the worm 556 synchronously drives the worm wheel 554 to rotate. The transmission rod 557 drives the first gear 553 located inside the groove 551 to rotate, and the first gear 553 drives the sealing plate 58 to move through the rack 552 meshing with it, so as to ensure that the two sealing plates 58 can move and open smoothly. When the plug mounting block 3 is moved, the worm 556 and the worm wheel 554 mesh with each other, so that the sealing plate 58 can no longer support the plate 57. The internal shaking displacement, therefore, during the process of plugging in the plug 6, the sealing plate 58 will not hinder its movement, ensuring that the plugging is fast and smooth.

[0050] like Figure 3 and Figure 4 As shown, the driving assembly 56 includes a driving rod 561 fixed on the outer surface of the plug mounting block 3 and an annular rack 565 rotatably connected to the outer surface of the protective shell 51, and the upper surface of the annular rack 565 is symmetrically fixedly connected to two vertical grooves 564, and the tops of the two vertical grooves 564 are fixedly connected to inclined grooves 563, and one side of the driving rod 561 is fixedly connected to a cylindrical block 562.

[0051] The annular rack 565 is located above the two second gears 555 , the annular rack 565 and the second gears 555 are meshed with each other, and the cylindrical block 562 and the inclined groove 563 and the vertical groove 564 are all slidably matched with each other.

[0052] However, when rotating the two second gears 555, a certain number of turns are required. When the two sealing plates 58 are fully opened through transmission, a certain amount of time is required to rotate. A lot of time is required before plugging, which delays work efficiency and brings inconvenience to users in practice. Therefore, when the protective shell 51 and the connector assembly 2 are in contact with each other, the plug mounting block 3 continues to move, the threaded rod 54 and the displacement slide groove 52 slide against each other, and the plug mounting block 3 drives the cylindrical block 562 to move toward the inside of the inclined groove 563 through the driving rod 561. When the cylindrical block 562 slides inside the inclined groove 563, since the cylindrical block 562 can only move in a straight line, and the inclined groove 56 3 is in an inclined state, so when the cylindrical block 562 moves downward, it will drive the inclined groove 563 to rotate along the outer wall of the protective shell 51, and the inclined groove 563 will synchronously drive the vertical groove 564 and the annular rack 565 to rotate. The rotation of the annular rack 565 will drive the second gear 555 meshing therewith to rotate, and the two sealing plates 58 will be opened to each other through transmission. When the cylindrical block 562 moves to the inside of the vertical groove 564, the vertical groove 564 is vertical. The cylindrical block 562 will not push the vertical groove 564 to move when moving, but will move downward inside it. After opening the two sealing plates 58, it can ensure that the plug mounting block 3 continues to move to connect the plug 6 with the connector assembly 2.

[0053] like Figure 6 As shown, an electrical connector with a plug structure comprises a mounting base 1, a connector assembly 2 is fixedly connected to the upper surface of the mounting base 1, the connector assembly 2 comprises a connecting base 21 fixed to the upper surface of the mounting base 1, a plug groove 22 is provided in the middle of the upper surface of the connecting base 21, three sockets 23 which are adapted to the conductive column 7 are fixedly connected to the bottom of the plug groove 22, an annular groove 27 is provided on the upper surface of the connecting base 21, two arc grooves 26 are symmetrically provided on the inner surface of the annular groove 27, a limiting assembly 24 is slidably connected to the edge of the upper surface of the connecting base 21, connecting assemblies 25 are provided on both sides of the inner surface of the plug groove 22, and the width of the plug 6 is smaller than the width of the plug groove 22.

[0054] like Figure 7 As shown, the limiting assembly 24 includes a first circular ring 241 sliding at the edge of the upper surface of the connecting seat 21 and two plug blocks 246 fixed at the bottom edge of the outer surface of the protective shell 51. The inner surface of the first circular ring 241 is symmetrically fixedly connected with two fixing plates 242. The interior of the fixing plate 242 is slidably connected with a telescopic rod 244. The bottom of the telescopic rod 244 is fixedly connected with a C-shaped block 243. The outer surface of the telescopic rod 244 is sleeved with a first spring 245.

[0055] Both sides of the C-shaped block 243 are inclined. The C-shaped block 243 is located inside the annular groove 27 . The C-shaped block 243 and the insert block 246 are adapted to each other, and the insert block 246 and the arc groove 26 are adapted to each other.

[0056] When the plug 6 is inserted into the plug slot 22, the protective shell 51 will be in contact with the connector assembly 2 as a whole, the protective shell 51 will be inserted into the annular groove 27, and the plug block 246 will be inserted into the arc groove 26 for positioning to avoid offset between the plug 6 and the plug slot 22. When the plug 6 is completely inserted into the plug slot 22 and the conductive column 7 is inserted into the jack 23, the first ring 241 is rotated at this time. The first ring 241 drives the C-shaped block 243 to move inside the annular groove 27 through the fixing plate 242 and the telescopic rod 244. When the hypotenuse of the C-shaped block 243 contacts the plug block 246, the C The C-shaped block 243 will move up, so that the C-shaped block 243 is completely moved to the top of the plug block 246, and the first spring 245 is compressed. When the C-shaped block 243 is buckled on the outside of the plug block 246, the first spring 245 will firmly squeeze the C-shaped block 243 on the outside of the plug block 246 to fix the protective shell 51, and then rotate the threaded rod 54 to self-lock the protective shell 51 and the plug mounting block 3, so as to protect the safety of the plug 6 and the plug slot 22 when plugging, and avoid the accidental separation of the plug 6 and the plug slot 22, and prevent water from accidentally entering between the plug 6 and the plug slot 22.

[0057] like Figure 8 - Fig. 9 As shown, the connecting component 25 includes a receiving groove 251 opened on both sides of the inner surface of the plug groove 22, a second ring 255 rotatably connected to the outside of the connecting seat 21 and a card groove 257 opened on both sides of the plug 6, and two driving inclined grooves 258 are evenly opened on the upper surface of the second ring 255. Two second springs 252 are fixedly connected to one side of the inner surface of the receiving groove 251, and a trapezoidal block 256 is fixedly connected to one side of the two second springs 252. A pull rod 253 is fixedly connected to one side of the trapezoidal block 256. A protrusion 254 is fixedly connected to the outer surface of the pull rod 253, and the top of the protrusion 254 passes through the driving inclined groove 258 and slides and fits with each other.

[0058] The current plug 6 and the plug slot 22 are both interference fit. Whether plugging in or unplugging, it takes a lot of effort, and it is also necessary to constantly shake the plug to unplug the plug 6. However, long-term shaking will cause the plug slot 22 to wear, and there will be a large gap between the plug 6 and the plug slot 22, and it is easy to cause damage to the jack 23.

[0059] However, the width of the plug 6 of the present application is smaller than the width of the plug slot 22. When the plug 6 is inserted into the plug slot 22, the plug 6 is inserted into the plug slot 22 more easily due to the reduced contact area. After the plug 6 is inserted into the plug slot 22, the plug 6 and the oblique edges of the trapezoidal block 256 contact each other, pushing the trapezoidal block 256 to move toward the inside of the storage slot 251. When the plug 6 completely enters the plug slot 22, the trapezoidal block 256 is quickly inserted into the inside of the card slot 257 on the plug 6 under the action of the two second springs 252, fixing the plug 6 and further ensuring the stability of the connection of the plug 6. At the same time, when contacting the connection of the plug 6, the second ring 255 is rotated to drive the two driving inclined grooves 258 to move, and the two driving inclined grooves 258 drive the two protrusions 254 to move away from each other, and the protrusion 254 is moved out of the inside of the card slot 257 by the pull rod 253.

[0060] Usage: First, two sealing plates 58 are used to seal one side of the protective shell 51, which can ensure that no impurities enter the vicinity of the conductive column 7. At the same time, the cooperation of the various components of the opening and closing assembly 55 can ensure that the opened sealing plate 58 will not rotate arbitrarily inside the support plate 57. The driving assembly 56 can increase the speed of opening the sealing plate 58, which greatly improves the convenience;

[0061] Then, the protective shell 51 can be snapped and fixed through the limiting component 24 to protect the plug 6 from external impact and water intrusion. At the same time, the connecting component 25 can clamp the plug 6 to improve the stability of the connection between the conductive column 7 and the socket 23.

[0062] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plug structure, comprising a plug mounting block (3), a wire (4) being fixedly connected to one side of the plug mounting block (3), a plug (6) being fixedly connected to one side of the plug mounting block (3), and a conductive column (7) being arranged inside the plug (6); Features: The outer surface of the plug mounting block (3) is sleeved with a sealing assembly (5) for protecting the conductive column (7); The sealing assembly (5) comprises a displacement slide groove (52) provided on the outside of the plug mounting block (3), a protective shell (51) sleeved on the outside of the plug mounting block (3), and a driving assembly (56) fixed to the top of the outer surface of the plug mounting block (3); the outer surface of the protective shell (51) is symmetrically threaded with two threaded rods (54); the outer surface of the protective shell (51) is provided with a through groove (53) near the bottom; the inner surface of the protective shell (51) is fixedly connected with two support plates (57); the two support plates (57) are slidably connected with a sealing plate (58) inside; one side of the sealing plate (58) is fixedly connected with a magnet (59).

2. A plug structure according to claim 1, characterized in that: The outer surface of the protective shell (51) is slidably connected to a driving assembly (56), opening and closing assemblies (55) are arranged on both sides of the sealing plate (58), one side of the threaded rod (54) extends to slide inside the displacement slide groove (52), one side of the sealing plate (58) is located inside the through groove (53), and the sealing plate (58) and the through groove (53) slide and fit each other.

3. A plug structure according to claim 2, characterized in that: The opening and closing assembly (55) comprises grooves (551) provided on both sides of the sealing plate (58), a transmission rod (557) rotating on the top of the support plate (57), and two worm gears (556) symmetrically connected to the inside of the protective shell (51), one side of the worm gear (556) extending out of the inside of the protective shell (51) and fixedly connected to the second gear (555), the bottom of the transmission rod (557) extending to the inside of the groove (551), the top and bottom of the transmission rod (557) being fixedly connected to the worm wheel (554) and the first gear (553), respectively, and one side of the inner surface of the groove (551) being fixedly connected to the rack (552).

4. A plug structure according to claim 3, characterized in that: The worm (556) and the worm wheel (554) are at the same height, the worm (556) and the worm wheel (554) are meshed with each other, and the first gear (553) is located inside the groove (551) and is meshed with the rack (552).

5. A plug structure according to claim 2, characterized in that: The driving assembly (56) comprises a driving rod (561) fixed on the outer surface of the plug mounting block (3) and an annular rack (565) rotatably connected to the outer surface of the protective shell (51); two vertical grooves (564) are symmetrically fixedly connected to the upper surface of the annular rack (565); the tops of the two vertical grooves (564) are fixedly connected to inclined grooves (563); and one side of the driving rod (561) is fixedly connected to a cylindrical block (562).

6. A plug structure according to claim 5, characterized in that: The annular rack (565) is located above the two second gears (555), the annular rack (565) and the second gears (555) are meshed with each other, and the cylindrical block (562) and the inclined groove (563) and the vertical groove (564) are all slidably matched with each other.

7. An electrical connector, applicable to the plug structure according to any one of claims 1 to 6, characterized in that: The invention comprises a mounting seat (1), wherein a connector assembly (2) is fixedly connected to the upper surface of the mounting seat (1), wherein the connector assembly (2) comprises a connecting seat (21) fixed to the upper surface of the mounting seat (1), wherein a plug groove (22) is provided in the middle of the upper surface of the connecting seat (21), wherein three plug holes (23) which are mutually adapted to the conductive pillars (7) are fixedly connected to the bottom of the plug groove (22), wherein an annular groove (27) is provided on the upper surface of the connecting seat (21), wherein two arc grooves (26) are symmetrically provided on the inner surface of the annular groove (27), wherein a limit assembly (24) is slidably connected to the edge of the upper surface of the connecting seat (21), and connecting assemblies (25) are provided on both sides of the inner surface of the plug groove (22), and the width of the plug (6) is smaller than the width of the plug groove (22).

8. An electrical connector according to claim 7, characterized in that: The limiting assembly (24) comprises a first circular ring (241) sliding on the edge of the upper surface of the connecting seat (21) and two plug blocks (246) fixed on the bottom edge of the outer surface of the protective shell (51); two fixing plates (242) are symmetrically fixedly connected to the inner surface of the first circular ring (241); a telescopic rod (244) is slidably connected inside the fixing plate (242); a C-shaped clamping block (243) is fixedly connected to the bottom of the telescopic rod (244); and a first spring (245) is sleeved on the outer surface of the telescopic rod (244).

9. An electrical connector according to claim 8, characterized in that: The two sides of the C-shaped clamping block (243) are arranged obliquely, the C-shaped clamping block (243) is located inside the annular groove (27), the C-shaped clamping block (243) and the inserting block (246) are adapted to each other, and the inserting block (246) and the arc groove (26) are adapted to each other.

10. An electrical connector according to claim 7, characterized in that: The connecting assembly (25) comprises a receiving groove (251) provided on both sides of the inner surface of the plug groove (22), a second circular ring (255) rotatably connected to the outer side of the connecting seat (21), and a clamping groove (257) provided on both sides of the plug (6), the upper surface of the second circular ring (255) being evenly provided with two driving inclined grooves (258), one side of the inner surface of the receiving groove (251) being fixedly connected with two second springs (252), one side of the two second springs (252) being fixedly connected with a trapezoidal block (256), one side of the trapezoidal block (256) being fixedly connected with a pull rod (253), the outer surface of the pull rod (253) being fixedly connected with a protrusion (254), the top of the protrusion (254) passing through the driving inclined groove (258) and being slidably adapted to each other.

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