A coaxial connector

Abstract

The present invention provides a coaxial connector, which relates to the technical field of electrical connectors. The coaxial connector includes a female head, a male head and a filling piece, wherein one end of the female head has a plug-in slot, the male head is plugged into the plug-in slot, and a plug-in gap is provided between the outer peripheral surface and the slot side wall of the plug-in slot, the filling piece is arranged in the plug-in gap, and the filling volume is variable, so as to have an expanded state and a contracted state, and the filling volume of the filling piece in the expanded state is greater than the filling volume in the contracted state, wherein in the expanded state, the outer peripheral surface of the filling piece is sealed against the wall surface of the plug-in gap, and in the contracted state, there is a gap between the outer peripheral surface of the filling piece and the wall surface of the plug-in gap. The present invention can ensure the sealing performance when the male head and the female head are plugged in, so as to improve the transmission efficiency of the signal.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and in particular to a coaxial connector. Background Art

[0002] A coaxial connector is an electronic connector that connects blocked or isolated circuits so that current can flow and the circuit can transmit signals to achieve a predetermined function.

[0003] However, in the related art, impurities such as dust can easily enter the male end port and the female end port from the connection gap between the male end and the female end of the coaxial connector, resulting in low signal transmission efficiency.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] Based on this, it is necessary to provide a coaxial connector that can ensure the sealing performance when the male head and the female head are plugged in, in order to solve the problems existing in the current coaxial connector.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A coaxial connector, comprising a female connector, a male connector and a filling piece;

[0008] One end of the female connector has a plugging slot, the male connector is plugged into the plugging slot, and a plugging gap is formed between the outer peripheral surface and the slot side wall of the plugging slot, the filling member is arranged in the plugging gap, and the filling volume is variable to have an expanded state and a contracted state, and the filling volume of the filling member in the expanded state is greater than the filling volume in the contracted state;

[0009] Wherein, in the expanded state, the outer peripheral surface of the filling piece is in sealing contact with the wall surface of the insertion gap; in the contracted state, there is a gap between the outer peripheral surface of the filling piece and the wall surface of the insertion gap.

[0010] Furthermore, the filling member is an air bag; the coaxial connector also includes an inflation device;

[0011] The inflation device is connected to the male connector and communicated with the airbag, wherein the inflation device is used to inflate gas into the interior of the airbag so that the airbag can switch from the contracted state to the expanded state to seal the insertion gap.

[0012] Furthermore, the inflation device includes a flexible hose, one end of which is connected to the airbag; the coaxial connector also includes a rotating ring, which includes a ring body, a connecting shaft and a rolling roller;

[0013] The ring body is sleeved on the male head and can rotate relative to the male head. The connecting shaft is connected to the side of the ring body facing the female head. The rolling roller is rotatably sleeved on the connecting shaft, wherein the rotating ring can drive the rolling roller to press against the tube wall of the flexible hose when rotating relative to the male head, so that the air in the flexible hose flows into the airbag.

[0014] Furthermore, the connecting shaft and the rolling roller each include a plurality of connecting shafts, the plurality of connecting shafts are arranged at intervals along the circumference of the ring body, and one rolling roller is correspondingly sleeved on one connecting shaft;

[0015] The flexible hose comprises a plurality of flexible hoses, and the plurality of flexible hoses are all in communication with the airbag, wherein any one of the rolling rollers can press against any one of the flexible hoses.

[0016] Furthermore, when the airbag is in an expanded state, the surface of the slot side wall of the airbag facing the plug-in slot, the slot bottom wall of the plug-in slot and the wall surface of the plug-in gap cooperate to form a chamber;

[0017] The end of the flexible hose away from the airbag is in communication with the chamber, and transports the air in the chamber to the interior of the airbag, so that the chamber is in a negative pressure state.

[0018] Furthermore, the inflation device also includes a one-way valve, which is connected to one end of the flexible hose connected to the chamber, so that the air in the chamber can flow into the flexible hose in a one-way manner.

[0019] Optionally, a pressure relief hole is provided on the side wall of the female connector, and the pressure relief hole is communicated with the chamber; the coaxial connector further includes a pressure relief member;

[0020] The pressure relief member is detachably connected to the female head and blocks the pressure relief hole.

[0021] Further, the male head has an insertion end for inserting into the plug-in slot, and a second card slot is formed on the outer peripheral surface of the insertion end, and the second card slot includes a communicating receiving slot and a card slot; wherein the airbag includes a bag body and a protruding portion;

[0022] The bag body is communicated with one end of the flexible hose and is accommodated in the accommodating groove. The protrusion is arranged on the outer surface of the bag body and is engaged with the engaging groove.

[0023] Furthermore, a first card slot is formed on the outer peripheral surface of the female head; the coaxial connector also includes a connecting plate, a rotating shaft and a locking plate;

[0024] The connecting plate is connected to the side of the ring body facing the female head and is provided with a through groove, the rotating shaft is passed through the through groove and can rotate in the through groove, one end of the locking plate is fixedly connected to the rotating shaft, and the other end is provided with a clamping portion;

[0025] Wherein, the locking plate can rotate relative to the connecting plate via the rotating shaft so that the engaging portion engages with or disengages from the first engaging groove.

[0026] Further, the connecting plate is provided with a first limiting groove and a second limiting groove, and the first limiting groove and the second limiting groove are both arranged in an arc shape; the side wall of the locking plate is provided with a first limiting shaft, and the first limiting shaft is passed through the first limiting groove and can be moved in the first limiting groove, so that the locking plate has a raised state and a clamped state; wherein the coaxial connector further includes a telescopic assembly, and the telescopic assembly includes a sleeve, a first telescopic member, a tension spring and a second telescopic member;

[0027] The sleeve is sleeved on the rotating shaft, the first telescopic member is telescopically inserted into the sleeve, and a second limiting shaft is provided on the side wall, the second limiting shaft is inserted into the second limiting groove, one end of the tension spring is fixedly connected to the sleeve, and the other end is fixedly connected to the first telescopic member, the second telescopic member is telescopically inserted into the first telescopic member, and sleeved on the first limiting shaft;

[0028] Among them, when the second limiting shaft is located at one end of the second limiting groove, the tension spring drives the first telescopic part to retract into the sleeve, so that the locking plate remains in the raised state; and when the second limiting shaft is located at the other end of the second limiting groove, the tension spring drives the first telescopic part to retract into the sleeve, so that the locking plate remains in the clamping state.

[0029] The beneficial effects of the present invention are as follows: in the expanded state, the outer peripheral surface of the filler is sealed against the wall surface of the plug-in gap, so that, on the one hand, the possibility of dust and other impurities flowing into the plug-in gap can be effectively reduced, and the sealing effect of the female head and the male head when plugged in can be effectively improved by setting the filler; on the other hand, when the outer peripheral surface of the filler is in contact with the wall surface of the plug-in gap, a certain friction force will be generated, thereby improving the firmness of the plug-in between the female head and the male head, and preventing the female head and the male head from being disconnected due to accidental contact from the outside. In the contracted state, there is a gap between the outer peripheral surface of the filler and the wall surface of the plug-in gap, so that when the user needs to plug the male head into the plug-in slot, there will be no interference with the outer peripheral surface of the filler, which is convenient for plugging the male head, and the operation is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a coaxial connector according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A structural diagram of the coaxial connector from another perspective;

[0032] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction;

[0033] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0034] Figure 5 for Figure 1 A schematic diagram of the exploded structure of the coaxial connector from one perspective;

[0035] Figure 6 for Figure 1 Schematic diagram of the exploded structure of the coaxial connector from another perspective;

[0036] Figure 7 for Figure 6 A partial cross-sectional schematic diagram of the one-way valve;

[0037] Figure 8 It is a schematic diagram of the matching of the male head, rotating ring, connecting plate, rotating shaft, locking plate and telescopic assembly of the coaxial connector of the present invention;

[0038] Fig. 9 for Figure 8 Schematic diagram of the cross section along CC direction;

[0039] Fig.10 for Figure 8 Schematic diagram of the coordination of the middle rotating ring, connecting plate, rotating shaft, locking plate and telescopic assembly;

[0040] Fig.11 for Fig.10 A partial enlarged view of point D in the middle;

[0041] Fig.12 for Figure 8 Schematic diagram of the coordination of the middle rotating ring, the connecting plate and the locking plate;

[0042] Fig.13 for Fig.12 Schematic diagram of the cross section along the EE direction;

[0043] Fig.14 for Fig.13 A partial enlarged view of point F in the middle;

[0044] Fig.15 It is a schematic diagram of the matching of the locking plate, the rotating shaft and the telescopic assembly of the coaxial connector of the present invention.

[0045] in:

[0046] 10, female head; 11, plug-in slot; 12, pressure relief hole; 13, first card slot; 20, male head; 21, insertion end; 211, second card slot; 2111, receiving slot; 2112, card slot; 212, fixing slot; 30, chamber; 40, filling piece; 41, airbag; 411, bag body; 412, raised part; 50, inflator; 51, flexible hose; 52, one-way valve; 521, valve body; 521A, opening; 522, stop Block; 523, spring; 60, rotating ring; 61, ring body; 62, connecting shaft; 63, rolling roller; 70, pressure relief member; 90, connecting plate; 90A, first limiting groove; 90B, second limiting groove; 91, rotating shaft; 92, locking plate; 921, first limiting shaft; 922, clamping part; 93, telescopic assembly; 931, sleeve; 932, first telescopic member; 9321, second limiting shaft; 933, tension spring; 934, second telescopic member. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0048] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] Please refer to Figures 1 to 4 The present invention proposes a coaxial connector. In an embodiment of the present invention, the coaxial connector includes a female connector 10, a male connector 20, and a filler 40. It is understood that when the female connector 10 and the male connector 20 are plugged in, the circuit can be turned on and the signal can be transmitted to achieve a predetermined function. It is understood that the coaxial connector of the present invention can be used in the fields of radar systems, broadcasting systems, etc., so the overall size of the coaxial connector is relatively large.

[0051] Specifically, one end of the female connector 10 has a plugging slot 11, and the slot opening of the plugging slot 11 is arranged toward the male connector 20. The male connector 20 is plugged into the plugging slot 11, that is, the male connector 20 is inserted into the plugging slot 11 through the slot opening of the plugging slot 11. When the male connector 20 is plugged into the plugging slot 11, there is a plugging gap between the outer peripheral surface of the male connector 20 and the slot side wall of the plugging slot 11.

[0052] It is understandable that if the plugging gap is not sealed, dust and other impurities will flow into the plugging gap with a high probability, thereby affecting the signal transmission efficiency between the male connector 20 and the female connector 10. Based on this, the filler 40 of the present invention is disposed in the plugging gap.

[0053] The filling volume of the filling member 40 is variable, so that the filling member 40 can have an expanded state and a contracted state. It is understandable that the filling member 40 can be a gaseous filling member, that is, when gas is filled into the filling member 40, the filling member 40 can be in an expanded state, and when gas is extracted from the filling member 40, the filling member 40 can be in a contracted state; of course, the filling member 40 can also be a liquid filling member, that is, when liquid is input into the filling member 40, the filling member 40 can be in an expanded state, and when liquid is extracted from the filling member 40, the filling member 40 can be in a contracted state; the present invention does not specifically limit the specific form of the filling member 40. Among them, the filling volume of the filling member 40 in the expanded state is greater than the filling volume in the contracted state.

[0054] In the expanded state, the outer circumference of the filler 40 is in sealing contact with the wall of the plug-in gap. In this way, on the one hand, the possibility of dust and other impurities flowing into the plug-in gap can be effectively reduced. By setting the filler 40, the sealing effect of the female head 10 and the male head 20 when plugged in can be effectively improved; on the other hand, when the outer circumference of the filler 40 is in contact with the wall of the plug-in gap, a certain friction force will be generated, thereby improving the firmness of the plug-in between the female head 10 and the male head 20, and preventing the female head 10 and the male head 20 from being disconnected due to accidental contact from the outside. In the contracted state, there is a gap between the outer circumference of the filler 40 and the wall of the plug-in gap. In this way, when the user needs to plug the male head 20 into the plug-in slot 11, there will be no interference with the outer circumference of the filler 40, which is convenient for plugging the male head 20, and the operation is very convenient.

[0055] Please refer to Figures 1 to 4 In some embodiments, the filling member 40 is an air bag 41 . The coaxial connector further includes an inflator 50 , which is connected to the male connector 20 and communicates with the air bag 41 .

[0056] The inflation device 50 is used to inflate gas into the interior of the airbag 41 so that the airbag 41 can be switched from a contracted state to an expanded state to seal the insertion gap.

[0057] It is understandable that when the inflation device 50 fills gas into the interior of the airbag 41, the filling volume of the airbag 41 will gradually increase until the outer peripheral surface of the airbag 41 is sealed and abutted against the wall of the insertion gap, and the inflation operation can be completed.

[0058] In the present invention, the filler 40 is in the form of an airbag 41. Compared with a liquid filler, the gas as the filling medium is lighter, thereby reducing the overall weight of the coaxial connector. In addition, when the filler 40 ruptures, if the filling medium is liquid, it may cause damage to the male head 20 and the female head 10, and even involve electrical safety. Therefore, the filling medium of the present invention is set as gas, which can help improve the safety of the coaxial connector.

[0059] Please refer to Figures 3 to 8 In some embodiments, the inflator 50 includes a flexible hose 51, which has a deformable property. One end of the flexible hose 51 is connected to the airbag 41, so that the flexible hose 51 can play a role in delivering gas to the inside of the airbag 41. It can be understood that the male connector 20 has an insertion end 21 for inserting into the plug slot 11, and the outer peripheral surface of the insertion end 21 is provided with a fixing slot 212. The flexible hose 51 is inserted into the fixing slot 212 to connect with the male connector 20.

[0060] The coaxial connector further includes a rotating ring 60, which includes a ring body 61, a connecting shaft 62, and a rolling roller 63. The ring body 61 is sleeved on the male connector 20 and can rotate relative to the male connector 20. The connecting shaft 62 is connected to the side of the ring body 61 facing the female connector 10, and the connecting shaft 62 is arranged in the plug-in gap, and the rolling roller 63 is rotatably sleeved on the connecting shaft 62. When the rotating ring 60 rotates relative to the male connector 20, it can drive the rolling roller 63 to press against the wall of the flexible hose 51, so that the air in the flexible hose 51 flows into the airbag 41.

[0061] During actual use, the user applies force to the ring body 61 to make the ring body 61 rotate relative to the male head 20, so that the ring body 61 will drive the connecting shaft 62 to rotate, and the connecting shaft 62 will drive the rolling roller 63 to approach the flexible hose 51, so that the rolling roller 63 can press the flexible hose 51, and during the pressing process, the rolling roller 63 will rotate to continuously press the flexible hose 51 to achieve gas delivery.

[0062] It can be understood that the flexible hose 51 has an air supply channel inside. When the rolling roller 63 presses the flexible hose 51, the flexible hose 51 will be compressed and deformed, so that the air supply channel will be divided into two sub-channels. At the same time, the sub-channel connected to the chamber 30 is a negative pressure environment to suck in the gas in the chamber 30, and the sub-channel connected to the airbag 41 is a positive pressure environment, so the gas can be delivered to the airbag 41, so that the airbag 41 switches from a contracted state to an expanded state.

[0063] In the present invention, the user only needs to control the rotation of the rotating ring 60 to continuously fill the gas in the flexible hose 51 into the airbag 41, so that the airbag 41 can quickly switch from a contracted state to an expanded state, with a simple structure and easy operation.

[0064] Please refer to Figures 5 and 6 Optionally, the connecting shaft 62 and the laminating roller 63 include a plurality of connecting shafts 62, which are arranged at intervals along the circumference of the ring body 61, and a laminating roller 63 is correspondingly sleeved on one connecting shaft 62;

[0065] The flexible hose 51 includes a plurality of flexible hoses 51 , and the plurality of flexible hoses 51 are all in communication with the airbag 41 , wherein any one of the rolling rollers 63 can press against any one of the flexible hoses 51 .

[0066] In this way, when the rotating ring 60 rotates, the rolling roller 63 can press against a flexible hose 51, and as it continues to rotate, the rolling roller 63 can press against the next flexible hose 51. All the rolling rollers 63 work on the same principle, so that the efficiency of gas delivery can be improved in this way, allowing the airbag 41 to switch from a contracted state to an expanded state more quickly.

[0067] Please refer to Figure 3 to Figure 4 In some embodiments, when the airbag 41 is in an expanded state, the surface of the slot side wall of the airbag 41 facing the plug-in slot 11, the slot bottom wall of the plug-in slot 11 and the wall surface of the plug-in gap cooperate to form a chamber 30.

[0068] Among them, one end of the flexible hose 51 away from the airbag 41 is connected to the chamber 30, and the air in the chamber 30 is transported to the inside of the airbag 41, so that the chamber 30 is in a negative pressure state. In this way, the flexible hose 51 can make use of the air in the chamber 30, that is, the air in the chamber 30 is transported to the airbag 41, so that the chamber 30 is in a negative pressure state. It can be understood that since part of the chamber 30 is formed by the wall surface of the plug-in gap, and the plug-in gap is formed by the outer peripheral surface of the male head 20 and the groove side wall of the plug-in groove 11 of the female head 10, the outside world will produce an extrusion force on the female head 10, so that the female head 10 can squeeze the airbag 41, thereby improving the sealing abutment effect between the female head 10 and the airbag 41, which is conducive to improving the sealing effect of the plug-in gap on the one hand, and on the other hand, it further reduces the risk of the female head 10 and the male head 20 being loosened when accidentally touched, and ensures the connection firmness when the female head 10 and the male head 20 are plugged.

[0069] Please refer to Figures 3 to 6 Furthermore, the inflator 50 further includes a one-way valve 52, which is connected to one end of the flexible hose 51 and communicates with the chamber 30, so that the air in the chamber 30 can flow unidirectionally into the flexible hose 51. In this way, it is possible to ensure that the air flows unidirectionally into the flexible hose 51 and then into the airbag 41, thereby preventing the gas inside the airbag 41 from flowing back into the chamber 30. At the same time, based on the setting of the one-way valve 52, even if the rolling roller 63 of the rotating ring 60 does not press the flexible hose 51 at some time, the gas will not flow back from the flexible hose 51 to the chamber 30, so that it is not necessary to ensure that the rolling roller 63 presses the flexible hose 51 at any time.

[0070] Please refer to Figures 3 to 7 In some structural forms, the one-way valve 52 includes a valve body 521, a stopper 522 and a return spring 523. The valve body 521 is connected to the flexible hose 51 and has a receiving cavity. The valve body 521 also has an opening 521A connected to the receiving cavity. The stopper 522 can play the role of a valve core. The stopper 522 is arranged in the receiving cavity and can play the role of covering the opening 521A. The return spring 523 is arranged in the receiving cavity, and one end of the return spring abuts against the stopper 522, and the other end abuts against the cavity wall of the receiving cavity.

[0071] During actual operation, when the control rotating ring 60 rotates, the ring body 61 will press against the flexible hose 51, thereby generating negative pressure in the flexible hose 51. Then, the gas in the chamber 30 will flow to the flexible hose 51. At this time, under the action of the gas, the block 522 will be pushed to move so that the block 522 does not cover the opening 521A, so that the gas can flow into the flexible hose 51. When the control rotating ring 60 stops rotating, the flexible hose 51 stops inhaling the gas in the chamber 30. Therefore, without the force of the gas, the block 522 will re-seal the opening 521A under the rebound of the spring 523, thereby preventing the gas inside the airbag 41 from flowing back to the chamber 30.

[0072] Please refer to Figure 1 , Figure 4 as well as Figure 5 In some embodiments, the side wall of the female connector 10 is provided with a pressure relief hole 12, and the pressure relief hole 12 is connected to the chamber 30. The coaxial connector further includes a pressure relief member 70, which is detachably connected to the female connector 10 and blocks the pressure relief hole 12. It can be understood that the pressure relief member 70 can be interference-fitted with the hole wall of the pressure relief hole 12 to achieve a detachable connection with the female connector 10.

[0073] With such arrangement, when the user needs to disconnect the male head 20 from the female head 10, the pressure relief member 70 can be removed from the female head 10 first, so that the chamber 30 is switched from a negative pressure state to a positive pressure state, thereby eliminating the squeezing force exerted on the female head 10 by the outside world, making it easier to disconnect the male head 20 from the female head 10.

[0074] Please refer to Figures 4 to 6 In some embodiments, the male plug 20 has an insertion end 21 for inserting into the plug-in slot 11 , and a second card slot 211 is formed on the outer peripheral surface of the insertion end 21 . The second card slot 211 includes a communicating receiving slot 2111 and a card slot 2112 .

[0075] The airbag 41 includes a bag body 411 and a protrusion 412. The bag body 411 is the main part of the airbag 41, which is connected to one end of the flexible hose 51 and is accommodated in the receiving groove 2111. The protrusion 412 is provided on the outer surface of the bag body 411 and is engaged with the clamping groove 2112. In this way, the probability of separation of the airbag 41 and the male connector 20 can be reduced by utilizing the clamping cooperation between the protrusion 412 and the clamping groove 2112, thereby effectively extending the service life of the coaxial connector and ensuring the reliability of the product.

[0076] Please refer to Figures 5 and 6 , Figures 8 to 11 In some embodiments, a first slot 13 is formed on the outer peripheral surface of the female connector 10. The coaxial connector further includes a connecting plate 90, a rotating shaft 91 and a locking plate 92.

[0077] The connecting plate 90 is connected to the side of the ring body 61 facing the female head 10, and is provided with a through groove. The rotating shaft 91 is passed through the through groove and can rotate in the through groove. Specifically, the connecting plate 90 may include two, and the two connecting plates 90 are arranged at intervals, and the two ends of the rotating shaft 91 along the extension direction thereof are respectively passed through the through grooves of the two connecting plates 90. One end of the locking plate 92 is fixedly connected to the rotating shaft 91, and the other end is provided with a clamping portion 922.

[0078] The locking plate 92 can rotate relative to the connecting plate 90 via the rotating shaft 91, so that the clamping portion 922 is clamped or disengaged from the first clamping slot 13. It is understandable that the rotating shaft 91 can have a damping performance, so that the locking plate 92 can be maintained in two states. One state is a raised state, in which the clamping portion 922 is separated from the second clamping slot 211, and the other state is a clamping state, in which the clamping portion 922 is clamped and matched with the second clamping slot 211.

[0079] In this way, the coaxial connector of the present invention has a multi-layer design to prevent the male head 20 from being separated from the female head 10. Specifically, the first layer is that when the airbag 41 is in an expanded state, the friction force generated between the airbag 41 and the plug-in gap is used to make the male head 20 and the female head 10 firmly connected; the second layer is the negative pressure design of the chamber 30. By making the chamber 30 in a negative pressure state, the pressure generated by the outside world is used to keep the airbag 41 and the wall of the plug-in gap firmly in contact, so that the male head 20 and the female head 10 are firmly connected; the third layer is to prevent the male head 20 and the female head 10 from loosening due to accidental touch by utilizing the snap-fit ​​cooperation between the snap-fit ​​portion 922 and the second snap-fit ​​groove 211, thereby ensuring the firmness of the connection.

[0080] Please refer to Figures 5 and 6 , Figures 8 to 15 In some embodiments, the connecting plate 90 is provided with a first limiting groove 90A and a second limiting groove 90B, and the first limiting groove 90A and the second limiting groove 90B are both arranged in an arc shape. The side wall of the locking plate 92 is provided with a first limiting shaft 921, which is passed through the first limiting groove 90A and can move in the first limiting groove 90A, so that the locking plate 92 can rotate and have a raised state and a clamped state. In the raised state, the clamping portion 922 is separated from the second clamping groove 211, and in the clamped state, the clamping portion 922 is clamped and matched with the second clamping groove 211.

[0081] The coaxial connector further comprises a telescopic assembly 93, which comprises a sleeve 931, a first telescopic member 932, a tension spring 933 and a second telescopic member 934. The sleeve 931 is sleeved on the rotating shaft 91. The first telescopic member 932 is telescopically arranged in the sleeve 931, and a second limiting shaft 9321 is arranged on the side wall, and the second limiting shaft 9321 is arranged in the second limiting groove 90B. One end of the tension spring 933 is fixedly connected to the sleeve 931, and the other end is fixedly connected to the first telescopic member 932. The second telescopic member 934 is telescopically arranged in the first telescopic member 932, and is sleeved on the first limiting shaft 921.

[0082] Among them, when the second limiting shaft 9321 is located at one end of the second limiting groove 90B, the tension spring 933 drives the first telescopic member 932 to retract into the sleeve 931, so that the locking plate 92 remains in the raised state; and when the second limiting shaft 9321 is located at the other end of the second limiting groove 90B, the tension spring 933 drives the first telescopic member 932 to retract into the sleeve 931, so that the locking plate 92 remains in the clamped state.

[0083] For details, please refer to Fig.14 and Fig.15 It is understood that when the second limiting shaft 9321 is in the middle of the second limiting groove 90B, that is, point H, the distance from the center point G of the rotating shaft 91 to the H point of the second limiting shaft 9321 is the longest, so the tension spring 933 is in a stretched to the longest state; and when the second limiting shaft 9321 moves from the middle of the second limiting groove 90B to one end of the second limiting groove 90B, that is, point I, the distance from the center point G of the rotating shaft 91 to the I point of the second limiting shaft 9321 is the shortest. Similarly, when the second limiting shaft 9321 moves from the middle of the second limiting groove 90B to the other end of the second limiting groove 90B, that is, point J, the distance from the center point G of the rotating shaft 91 to the J point of the second limiting shaft 9321 is the shortest.

[0084] On this basis, when the user rotates the locking plate 92, the second limiting shaft 9321 leaves the middle of the second limiting groove 90B, and the tension spring 933 is in a state of contraction and restoration, so the tension spring 933 drives the second limiting shaft 9321 to move to one end of the second limiting groove 90B, and the first telescopic member 932 retracts into the sleeve 931, so that the locking plate 92 remains in the raised state, and when the user rotates the locking plate 92 in the opposite direction, the second limiting shaft 9321 leaves the middle of the second limiting groove 90B, and the tension spring 933 is in a state of contraction and restoration, so the tension spring 933 drives the second limiting shaft 9321 to move to the other end of the second limiting groove 90B, and the first telescopic member 932 retracts into the sleeve 931, so that the locking plate 92 remains in the clamping state. In this way, the locking plate 92 can be kept in the clamping state, further preventing the situation that the male head 20 and the female head 10 are separated by accidental touch.

[0085] In some embodiments, the assembly process of the coaxial connector of this embodiment is as follows: when the male head 20 is to be connected to the female head 10, the male head 20 is first inserted into the plug-in slot 11, and the locking plate 92 is switched from the raised state to the clamping state, so that the clamping portion 922 is clamped and matched with the second clamping slot 211, and then the ring body 61 of the rotating ring 60 is controlled to rotate, so that the rolling roller 63 squeezes the flexible hose 51, so that the flexible hose 51 continuously transports the gas in the chamber 30 to the interior of the airbag 41, so that the airbag 41 switches from the contracted state to the expanded state, and the chamber 30 is in a negative pressure state. At this time, the connection between the male head 20 and the female head 10 is completely realized. When it is necessary to disassemble and separate the male head 20 and the female head 10, the pressure relief piece 70 can be first removed from the female head 10, so that the chamber 30 is switched from the negative pressure state to the positive pressure state, and then the locking plate 92 is switched from the clamping state to the raised state. After that, force is required to pull the male head 20 out of the plug-in slot 11. At this time, the force applied needs to overcome the friction generated between the airbag 41 and the wall of the plug-in gap. After the male head 20 is pulled out of the plug-in slot 11, the disassembly operation of the male head 20 and the female head 10 is realized. Then, the staff can push the block 522 with a tool to open the opening 521A, so that the gas in the airbag 41 can flow to the outside through the opening 521A, and the airbag 41 can switch from the expanded state to the contracted state.

[0086] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A coaxial connector, characterized in that: include: A female connector (10) having a plug slot (11) at one end; A male plug (20) is inserted into the insertion slot (11), and a insertion gap is formed between the outer peripheral surface and the slot side wall of the insertion slot (11); and A filling piece (40) is disposed in the insertion gap and has a variable filling volume so as to have an expanded state and a contracted state, and the filling volume of the filling piece (40) in the expanded state is greater than the filling volume in the contracted state; Wherein, in the expanded state, the outer peripheral surface of the filling piece (40) is in sealing contact with the wall surface of the insertion gap; in the contracted state, there is a gap between the outer peripheral surface of the filling piece (40) and the wall surface of the insertion gap; The filling member (40) is an air bag (41); the coaxial connector further comprises: An inflation device (50) connected to the male connector (20) and in communication with the airbag (41); The inflation device (50) is used to inflate gas into the interior of the airbag (41), so that the airbag (41) can be switched from the contracted state to the expanded state to seal the insertion gap; The inflation device (50) comprises a flexible hose (51), one end of which is connected to the airbag (41); the coaxial connector further comprises a rotating ring (60), and the rotating ring (60) comprises: A ring body (61) is sleeved on the male head (20) and can rotate relative to the male head (20); A connecting shaft (62) connected to a side of the ring body (61) facing the female head (10); and A rolling roller (63) is rotatably sleeved on the connecting shaft (62); Wherein, when the rotating ring (60) rotates relative to the male head (20), it can drive the rolling roller (63) to press against the tube wall of the flexible hose (51), so that the air in the flexible hose (51) flows into the air bag (41); When the airbag (41) is in an expanded state, the surface of the slot side wall of the airbag (41) facing the plugging slot (11), the slot bottom wall of the plugging slot (11) and the wall surface of the plugging gap cooperate to form a chamber (30); wherein one end of the flexible hose (51) away from the airbag (41) is in communication with the chamber (30) and transports the air in the chamber (30) to the interior of the airbag (41), so that the chamber (30) is in a negative pressure state; The inflation device (50) further comprises: A one-way valve (52) is connected to one end of the flexible hose (51) and communicates with the chamber (30), so that the air in the chamber (30) can flow into the flexible hose (51) in one direction.

2. The coaxial connector according to claim 1, characterized in that: The connecting shaft (62) and the rolling roller (63) each include a plurality of connecting shafts (62), the plurality of connecting shafts (62) are arranged at intervals along the circumference of the ring body (61), and one rolling roller (63) is correspondingly sleeved on one connecting shaft (62); The flexible hose (51) includes a plurality of them, and the plurality of flexible hoses (51) are all connected to the airbag (41), wherein any one of the rolling rollers (63) can press against any one of the flexible hoses (51).

3. The coaxial connector according to claim 1, characterized in that: The side wall of the female connector (10) is provided with a pressure relief hole (12), and the pressure relief hole (12) is in communication with the chamber (30); the coaxial connector further comprises: The pressure relief member (70) is detachably connected to the female head (10) and blocks the pressure relief hole (12).

4. The coaxial connector according to claim 1, characterized in that: The male head (20) has an insertion end (21) for inserting into the insertion slot (11), and a second card slot (211) is formed on the outer peripheral surface of the insertion end (21), and the second card slot (211) includes a receiving slot (2111) and a card slot (2112) that are connected to each other; wherein the airbag (41) includes: a bag body (411), which is in communication with one end of the flexible hose (51) and is received in the receiving groove (2111); and The protrusion (412) is provided on the outer surface of the bag body (411) and is engaged with the engaging groove (2112).

5. The coaxial connector according to any one of claims 1 to 3, characterized in that: The outer peripheral surface of the female connector (10) is formed with a first card slot (13); the coaxial connector further comprises: A connecting plate (90) connected to a side of the ring body (61) facing the female head (10) and having a slot; a rotating shaft (91) passing through the slot and capable of rotating in the slot; and A locking plate (92), one end of which is fixedly connected to the rotating shaft (91), and the other end of which is provided with a clamping portion (922); The locking plate (92) can be rotated relative to the connecting plate (90) via the rotating shaft (91) so that the engaging portion (922) engages with or disengages from the first engaging groove (13).

6. The coaxial connector according to claim 5, characterized in that: The connecting plate (90) is provided with a first limiting groove (90A) and a second limiting groove (90B), and the first limiting groove (90A) and the second limiting groove (90B) are both arranged in an arc shape; the side wall of the locking plate (92) is provided with a first limiting shaft (921), and the first limiting shaft (921) is passed through the first limiting groove (90A) and can move in the first limiting groove (90A), so that the locking plate (92) has a raised state and a clamped state; wherein the coaxial connector further includes a telescopic component (93), and the telescopic component (93) includes: A sleeve (931) is sleeved on the rotating shaft (91); A first telescopic member (932) is telescopically arranged in the sleeve (931), and a second limiting shaft (9321) is arranged on the side wall, and the second limiting shaft (9321) is arranged in the second limiting groove (90B); a tension spring (933), one end of which is fixedly connected to the sleeve (931), and the other end of which is fixedly connected to the first telescopic member (932); and A second telescopic member (934) is telescopically arranged on the first telescopic member (932) and sleeved on the first limiting shaft (921); When the second limiting shaft (9321) is located at one end of the second limiting groove (90B), the tension spring (933) drives the first telescopic member (932) to retract into the sleeve (931) so that the locking plate (92) remains in the raised state; and when the second limiting shaft (9321) is located at the other end of the second limiting groove (90B), the tension spring (933) drives the first telescopic member (932) to retract into the sleeve (931) so that the locking plate (92) remains in the clamped state.

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