Double-ferrule connector

Abstract

The invention belongs to the field of connectors, and provides a double-insertion-core connector which comprises a socket end and a plug end. The plug end comprises a first cable, a second cable, a plug shell, a tail shell, a plug pressing plate and a rotary adjusting sleeve; when the plug end is inserted into the socket end, the plug shell and the socket shell are detachably connected, the first cable and the third cable are communicated through contact of the end faces of the cable cores, and the second cable and the fourth cable are communicated through contact of the end faces of the cable cores. The rotary adjusting sleeve is used for rotating to exchange the positions of the first cable and the second cable, so that the first cable is communicated with the fourth cable, and the second cable is communicated with the third cable; connection and switching of double cables can be completed through one connector, the connector does not need to be replaced or rewiring does not need to be carried out, the cables can be rapidly switched, operation is convenient, and working efficiency and operation flexibility are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the field of connectors, and in particular relates to a double-pin connector. Background Art

[0002] Connectors are important components in electronic devices. Their main responsibility is to ensure effective connection and timely disconnection between circuits or signal lines. Connectors act as a bridge in the operation of electronic devices, allowing current or signals to be transmitted smoothly between various components. Depending on the type of equipment connected by the connector, connectors can be roughly classified into power cable connectors, communication cable connectors, and fiber optic connectors. Power cable connectors are usually used to transmit power, while communication cable connectors are used to transmit data signals, and fiber optic connectors play a key role in high-speed data transmission. Depending on the type of cable, connectors can also be subdivided into single-core connectors or multi-core connectors. In the prior art, the cables at both ends of the connector are usually connected in a one-to-one manner. In various occasions such as the interchange of positive and negative signals, testing of different connectors, detection of cable faults, and adjustment of the transmission direction, when the line connected to the connector needs to be switched, it is necessary to remove the cables at both ends of the connector and reconnect them. In narrow spaces, such as electrical manholes in residential corridors, cables in pipelines, etc., the operating space is limited and there are many lines, which makes it easy for operators to make wrong connections or missed connections. After making wrong connections or missed connections, they need to be checked step by step, which is not conducive to the rapid switching of cables. If the line switching function can be realized on one connector, the switching efficiency can be greatly improved. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a dual-pin connector to solve the problems in the prior art. The technical solution adopted by the present invention is: A dual-pin connector includes a socket end and a plug end; The plug end includes a first cable, a second cable, a plug housing, a tail housing, a plug pressing plate and a rotation adjustment sleeve; The first cable and the second cable are fixed on the rotation adjustment sleeve, the rotation adjustment sleeve is rotatably arranged in the plug shell, the rear end of the plug shell is detachably connected to the tail shell, the front end of the plug shell is provided with the plug pressing plate, the wire cores in the first cable and the second cable pass through the plug pressing plate respectively and the end faces of the wire cores are flush with the end face of the plug pressing plate, and the rear ends of the first cable and the second cable pass through the tail shell; The socket end comprises a third cable, a fourth cable, a socket shell and a socket pressure plate; the third cable and the fourth cable pass through the interior of the socket shell, the socket pressure plate is arranged at the front end of the socket shell, the wire cores in the third cable and the fourth cable pass through the socket pressure plate respectively and the end faces of the wire cores are flush with the end face of the socket pressure plate; When the plug end is plugged into the socket end, the plug housing and the socket housing are detachably connected, the first cable and the third cable are connected by contacting the wire core end faces, and the second cable and the fourth cable are connected by contacting the wire core end faces; The rotation adjustment sleeve is used to rotate to exchange the positions of the first cable and the second cable, so that the first cable is connected to the fourth cable and the second cable is connected to the third cable.

[0004] Furthermore, the plug end also includes a shaft, a fixed sleeve, a rotating cylinder and a fixed inner core; The plug shell is a hollow structure, and its rear end opening is detachably connected to the tail shell. The fixed sleeve is detachably connected to the plug shell. The rotating cylinder is rotatably arranged in the fixed sleeve. The rotating cylinder is a hollow structure and is rotatably sleeved on the shaft body. The rear end of the shaft body is fixedly connected to the tail shell. The rear end of the rotating cylinder is fixedly connected to the rotating adjustment sleeve. The rotating adjustment sleeve is sleeved on the shaft body. Two through holes are provided on the rotating cylinder. The fixed inner core is fixedly connected to the two through holes. The fixed inner core is a hollow structure and the hollow part thereof is a stepped hole. The front end of the rotating cylinder is fixedly connected to the plug pressure plate. The first cable and the second cable pass through the rotating adjustment sleeve and are respectively inserted into the two fixed inner cores, the wire cores in the first cable and the second cable pass through the front ends of the first cable and the second cable, and the wire cores in the first cable and the second cable pass through the stepped holes in the two fixed inner cores respectively.

[0005] Furthermore, the outer side surface of the rotation adjustment sleeve is connected to a paddle, and an opening portion adapted to the paddle is provided on the plug housing, and the paddle passes through the opening portion, and the opening portion is used to restrict the rotation stroke of the paddle so that the maximum rotation angle of the paddle is 180°, thereby allowing the first cable and the second cable to exchange positions.

[0006] Furthermore, a rotating shell is sleeved on the plug shell, the front end of the rotating shell is connected to the front end sleeve, the rear end of the rotating shell is connected to the rear end plate, an annular chamber is formed between the inner side of the rotating shell and the plug shell, a movable sleeve is arranged in the annular chamber, the movable sleeve can be movably sleeved on the plug shell, one end of the paddle passing through the opening can be detachably connected to the movable sleeve, the rear end of the movable sleeve abuts against a stopper, the stopper is fixedly connected to the inner side surface of the rotating shell, a limiting ring is arranged in the annular chamber, the limiting ring is fixedly connected to the plug shell, and a reset spring is arranged between the limiting ring and the stopper; The rear end of the front sleeve is provided with a latch pin, and the front end of the movable sleeve is provided with a pin hole matched with the latch pin.

[0007] Furthermore, the plug pin and the pin hole are spaced apart, a plug slot is provided at the front end of the plug housing, the plug pressure plate is provided in the plug slot, a rear end surface of the plug pressure plate and an inner wall surface of the plug slot are spaced apart, and a space is provided between the rear end of the paddle and the rear end of the opening; When the rotating housing moves backward, the plug is inserted into the pin hole, the plug pressing plate abuts against the inner wall surface of the plug slot body, and the plug pressing plate and the socket pressing plate are spaced apart.

[0008] Furthermore, there is a gap between the front end of the tail shell and the rear end of the rotating adjustment sleeve, and two symmetrically distributed tensioning mechanisms are arranged in the tail shell, and the tensioning mechanisms include a roller shaft, a connecting rod, a slider, a tensioning spring, an end cover and an elastic rope; The roller shaft is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the slider. The upper and lower parts of the tail shell are both provided with mounting holes. The sliders of the two tensioning mechanisms are respectively slidably arranged in the two mounting holes. The opposite ends of the two mounting holes are respectively detachably connected to the end covers. The tensioning spring is arranged between the end cover and the slider. The opposite sides of the two sliders are respectively fixedly connected to one end of the elastic rope, and the other end of the elastic rope passes through the end cover and is connected to the rear end plate. The first cable and the second cable pass through the interior of the tail housing, and the parts of the first cable and the second cable located in the tail housing are between the two rollers, and the two rollers respectively press against the first cable and the second cable to form a bent state; When the first cable and the second cable exchange positions, the two rollers move in opposite directions, so that the first cable and the second cable are stretched naturally.

[0009] Furthermore, the rear end of the rear end plate is fixedly connected to an outer adjustment sleeve, the inner side of the outer adjustment sleeve is rotatably connected to an inner adjustment sleeve, and the inner side surface of the inner adjustment sleeve is fixedly connected to an end of the elastic rope away from the slider.

[0010] Furthermore, the rear end of the tail shell is provided with an opening, the end surface of the opening is detachably connected to a rear cover plate, and the first cable and the second cable pass through the rear cover plate.

[0011] Furthermore, the shaft body is a hollow structure, in which a sliding shaft is slidably arranged, a threaded hole is arranged at the front end of the sliding shaft, a pressure block is fixedly connected to the outer side surface of the rear end of the sliding shaft, a waist-shaped hole is opened on the shaft body for the pressure block to move forward and backward, and the pressure block passes through the waist-shaped hole; A crimping core is provided in the socket housing, the front end of the crimping core is fixedly connected to the elastic ring plate, the front end of the elastic ring plate is fixedly connected to the socket pressing plate, and the front ends of the third cable and the fourth cable are fixedly connected in the crimping core; A screw is arranged in the crimping core, and the screw is adapted to the threaded hole; the screw is used to threadably connect the threaded hole so that the pressing block presses the rear end of the rotating adjustment sleeve.

[0012] Furthermore, the socket pressure plate and the elastic ring plate are provided with a circular hole for inserting the front end of the shaft body; a stepped through hole is provided in the crimping core, the stepped through hole is connected to the circular hole, the small diameter part of the stepped through hole is in the front, and the large diameter part is in the rear, the screw is located in the small diameter part, a pressure ring is slidably provided in the large diameter part, the pressure ring is sleeved on the screw and fixedly connected to the screw, a locking spring is provided between the pressure ring and the small diameter part, the rear end of the pressure ring abuts against the front end of the locking rod, the locking rod is provided with an annular protrusion, the rear end of the socket housing is detachably connected to the fixing plate, the locking rod can slidably pass through the fixing plate, and the annular protrusion abuts against the fixing plate; The front end of the locking rod is provided with a spline hole adapted to the screw rod, the rear end of the screw rod is provided with a spline, and the rear end of the screw rod is inserted into the spline hole and connected through the spline.

[0013] The present invention has the following beneficial effects: the present invention can realize 180° rotation of the first cable and the second cable by rotating the adjustment sleeve, and then exchange the relative positions of the two, so that the pairing status of the four cables can be changed, thereby changing the transmission direction; the present invention can be widely used in various occasions such as the interchange of positive and negative signals, testing of different connectors, detection of cable faults and adjustment of transmission direction. The present invention can complete the connection and switching of dual cables through one connector, without replacing the connector or rewiring, and can quickly switch cables, which is convenient to operate and significantly improves work efficiency and operational flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the socket end and the plug end when connected; Figure 3 It is a schematic diagram in the locked state; Figure 4 It is a schematic diagram when the rotating housing moves backward to the maximum travel position; Figure 5 This is a schematic diagram after the line is switched and locked; Figure 6 yes Figure 1 A schematic cross-sectional view in the aa direction; Figure 7 yes Figure 1 BB-direction cross-sectional view; Figure 8 This is a schematic diagram of setting an iron sheet at the end of the wire core; In the figure: first cable 1, second cable 2, third cable 3, fourth cable 4, plug housing 5, tail housing 6, rear cover 7, shaft 8, plug pressure plate 9, fixed sleeve 10, rotating cylinder 11, fixed inner core 12, rotating adjustment sleeve 13, return spring 14, front sleeve 15, rotating housing 16, paddle 17, movable sleeve 18, stopper 19, limit ring 20, rear end plate 21, outer adjustment sleeve 22, inner adjustment sleeve 23, roller 24, connecting rod 25 , slider 26, tensioning spring 27, end cover 28, elastic rope 29, pressure head 30, adjusting rod 31, connecting block 32, socket housing 33, socket pressure plate 34, elastic ring plate 35, crimping core 36, screw 37, locking spring 38, pressure ring 39, locking rod 40, fixing plate 41, iron sheet 42, annular protrusion 401, opening 501, protrusion 701, sliding shaft 801, threaded hole 802, pressure block 803, retaining ring 111, and latch 151. DETAILED DESCRIPTION

[0015] The following will be combined with the embodiments of the present invention Figure 1-Figure 8 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0016] It should be noted that in the drawings of the present invention, the left side is the socket end and the right side is the plug end. In the present invention, "front end" or "front" refers to the opposite end of the socket end and the plug end. Figure 1The right side of the socket end and the left side of the plug end; "rear end" and "rear" refer to the end opposite to the socket end and the plug end, such as Figure 1 to the left of the socket end and to the right of the plug end.

[0017] like Figure 1 , a dual-pin connector, including a socket end and a plug end; The plug end includes a first cable 1, a second cable 2, a plug housing 5, a tail housing 6, a plug pressing plate 9 and a rotation adjustment sleeve 13; The first cable 1 and the second cable 2 are fixed on the rotation adjustment sleeve 13, the rotation adjustment sleeve 13 is rotatably arranged in the plug shell 5, the rear end of the plug shell 5 is detachably connected to the tail shell 6, the front end of the plug shell 5 is provided with the plug pressing plate 9, the wire cores in the first cable 1 and the second cable 2 pass through the plug pressing plate 9 respectively, and the end faces of the wire cores are flush with the end face of the plug pressing plate 9, and the rear ends of the first cable 1 and the second cable 2 pass through the tail shell 6; The socket end includes a third cable 3, a fourth cable 4, a socket shell 33 and a socket pressure plate 34; the third cable 3 and the fourth cable 4 pass through the interior of the socket shell 33, the socket pressure plate 34 is arranged at the front end of the socket shell 33, the wire cores in the third cable 3 and the fourth cable 4 pass through the socket pressure plate 34 respectively, and the end faces of the wire cores are flush with the end face of the socket pressure plate 34; When the plug end is plugged into the socket end, the plug housing 5 and the socket housing 33 are detachably connected, the first cable 1 and the third cable 3 are connected by contacting the wire core end faces, and the second cable 2 and the fourth cable 4 are connected by contacting the wire core end faces; The rotation adjustment sleeve 13 is used to rotate to exchange the positions of the first cable 1 and the second cable 2 , so that the first cable 1 is connected to the fourth cable 4 , and the second cable 2 is connected to the third cable 3 .

[0018] Reference for the state when the socket and plug are plugged into each other Figure 2 , Figure 1 , Figure 2This is the default initial state of the present invention, that is, the first cable 1 and the third cable 3 are paired and connected, and the second cable 2 and the fourth cable 4 are paired and connected. The first cable 1 and the third cable 3 are on a horizontal line above the shaft 8, and the second cable 2 and the fourth cable 4 are on a horizontal line below the shaft 8. The first, second, third, and fourth cables of the present invention are all single-core cables, which have a single core inside. When the core ends of the two cables are in contact, signals or electricity can be transmitted. It should be noted that the cable of the present invention can be a variety of cables such as optical fibers, communication cables, and power cables. Users can choose according to their needs. If it is a power cable, refer to Figure 8 An iron sheet 42 may be fixedly connected to the end of the wire core, and the two iron sheets 42 may be fitted together to increase transmission efficiency and stability.

[0019] The plug housing 5 and the socket housing 33 can be connected by bolts, and the two are provided with corresponding flange parts. After the socket end and the plug end are plugged into each other, the plug housing 5 and the socket housing 33 are connected again, so that the socket pressing plate 34 and the plug pressing plate 9 are fitted together to ensure the tightness of the connection.

[0020] During the specific implementation of the present invention, by rotating the adjustment sleeve 13, the first cable 1 and the second cable 2 can be rotated 180°, and then the relative positions of the two can be exchanged, so that the pairing status between the four cables can be changed, thereby changing the transmission direction; the present invention can be widely used in various occasions such as the interchange of positive and negative signals, testing of different connectors, detection of cable faults and adjustment of transmission direction. The present invention can complete the connection and switching of dual cables through one connector, without replacing the connector or rewiring, and can quickly switch cables, which is convenient to operate and significantly improves work efficiency and operational flexibility.

[0021] In addition, when the line needs to be disconnected, the rotating adjustment sleeve 13 can be rotated to an angle less than 180°, such as 90°, that is, four cables are staggered, so the present invention can also achieve the function of temporary line disconnection.

[0022] Furthermore, the plug end also includes a shaft 8, a fixed sleeve 10, a rotating cylinder 11 and a fixed inner core 12; The plug housing 5 is a hollow structure, and its rear end opening is detachably connected to the tail housing 6 by means of bolts, snaps, etc. The plug housing 5 is detachably connected to the fixing sleeve 10 by means of bolts, snaps, threads, etc. The rotating cylinder 11 is rotatably arranged in the fixing sleeve 10, the rotating cylinder 11 is a hollow structure and is rotatably sleeved on the shaft body 8, the rear end of the shaft body 8 is fixedly connected to the tail housing 6, the rear end of the rotating cylinder 11 is fixedly connected to the rotating adjustment sleeve 13, the rotating adjustment sleeve 13 is sleeved on the shaft body 8, the rotating cylinder 11 is provided with two through holes, the two through holes are fixedly connected to the fixed inner core 12, the fixed inner core 12 is a hollow structure and the hollow part thereof is a stepped hole; the front end of the rotating cylinder 11 is fixedly connected to the plug pressing plate 9; The first cable 1 and the second cable 2 pass through the rotating adjustment sleeve 13 and are respectively inserted into the two fixed inner cores 12, the wire cores in the first cable 1 and the second cable 2 pass through the front ends of the first cable 1 and the second cable 2, and the wire cores in the first cable 1 and the second cable 2 pass through the stepped holes of the two fixed inner cores 12 respectively.

[0023] The plug housing 5 is a hollow cylindrical structure as a whole, and the plug housing 5 is coaxially arranged with the shaft body 8. Figure 6 The two through holes on the rotating cylinder 11 are symmetrically distributed on the upper and lower sides of the shaft 8. The front ends of the first cable 1 and the second cable 2 expose the wire core, and the wire core and the cable are adapted to the stepped hole of the fixed inner core 12, so as to wrap the wire core and protect the wire core. The rotating adjustment sleeve 13 is fixedly connected to the first cable 1 and the second cable 2, and can be fixed by bolt tightening, interference fit, etc.

[0024] In addition, an annular groove is provided on the outer side surface of the rotating cylinder 11, and a snap ring 111 is provided in the annular groove. The snap ring 111 is fixedly connected to the inner side surface of the fixing sleeve 10. The width of the annular groove is larger than the snap ring 111, so that the snap ring 111 can move relatively forward and backward in the annular groove, thereby providing the rotating cylinder 11 with a travel for forward and backward movement and rotation, while ensuring the sealing performance.

[0025] Furthermore, the outer side of the rotation adjustment sleeve 13 is connected to the paddle 17, and the plug housing 5 is provided with an opening portion 501 adapted to the paddle 17, and the paddle 17 passes through the opening portion 501. The opening portion 501 is used to restrict the rotation stroke of the paddle 17 so that the maximum rotation angle of the paddle 17 is 180°, thereby allowing the first cable 1 and the second cable 2 to exchange positions.

[0026] The paddle 17 is an intermediate transmission component of the present invention, and its purpose is to control the rotation of the rotating adjustment sleeve 13 from the outside, that is, to drive the rotation of the rotating adjustment sleeve 13 by rotating the housing 16. Figure 7 The opening 501 is in an arc-shaped structure along the outer wall of the plug housing 5. When the paddle 17 is located at both ends of the opening 501, the four cables cooperate with each other. Preferably, when the paddle 17 abuts the top of the opening 501, the first and third cables, as well as the second and fourth cables cooperate and communicate; when the paddle 17 abuts the bottom of the opening 501, the first and fourth cables, as well as the second and third cables cooperate and communicate; the design of the opening 501 facilitates the rotation and limiting of the paddle 17. In specific implementation, the four cables can be reversed by rotating the housing 16 in the forward and reverse directions to the maximum position.

[0027] Specifically, for easy installation, a slot is provided on the outer side of the rotation adjustment sleeve 13 , and the bottom of the paddle 17 is engaged in the slot of the rotation adjustment sleeve 13 .

[0028] Further, a rotating shell 16 is sleeved on the plug shell 5, the front end of the rotating shell 16 is connected to the front end sleeve 15 by means of bolts, buckles, etc., the rear end of the rotating shell 16 is connected to the rear end plate 21 by means of bolts, buckles, etc., an annular chamber is formed between the inner side of the rotating shell 16 and the plug shell 5, a movable sleeve 18 is arranged in the annular chamber, the movable sleeve 18 is movably sleeved on the plug shell 5, one end of the paddle 17 passing through the opening 501 is detachably connected to the movable sleeve 18 by means of bolts, buckles, etc., the rear end of the movable sleeve 18 abuts against a stopper 19, the stopper 19 is fixedly connected to the inner side surface of the rotating shell 16, a limiting ring 20 is arranged in the annular chamber, the limiting ring 20 is fixedly connected to the plug shell 5, and a reset spring 14 is arranged between the limiting ring 20 and the stopper 19; The rear end of the front sleeve 15 is provided with a latch pin 151 , and the front end of the movable sleeve 18 is provided with a pin hole adapted to the latch pin 151 .

[0029] The gap between the rotating housing 16 and the movable sleeve 18 is distributed to prevent the rotating housing 16 from accidentally touching the movable sleeve 18 to rotate. Only when the latch 151 is inserted into the pin hole, the rotating housing 16 can drive the movable sleeve 18 and the paddle 17 to rotate. The rotating housing 16, the front cover 15 and the rear plate 21 form a dustproof structure to prevent dust from entering the opening 501.

[0030] In addition, a plurality of latch pins 151 are provided and distributed in the circumferential direction around the plug housing 5. The cooperation between the latch pin 151 and the pin hole can also be changed to other parts, such as the cooperation between the end face toothed disc and the tooth groove.

[0031] Furthermore, the plug pin 151 is spaced apart from the pin hole, a plug slot is provided at the front end of the plug housing 5, the plug pressing plate 9 is provided in the plug slot, a rear end surface of the plug pressing plate 9 is spaced apart from an inner wall surface of the plug slot, and a space is provided between the rear end of the paddle 17 and the rear end of the opening 501; When the rotating housing 16 moves backward, the plug 151 is inserted into the pin hole, the plug pressing plate 9 abuts against the inner wall surface of the plug slot body, and the plug pressing plate 9 and the socket pressing plate 34 are spaced apart.

[0032] exist Figure 1 , Figure 2 In the default initial state, under the action of the return spring 14, its front end abuts against the stopper 19, so that the stopper 19 pushes the movable sleeve 18 and the rotating shell 16 forward, so that the movable sleeve 18 and the rotating shell 16 are in the forward maximum stroke position. In this state, the pin 151 is separated from the pin hole, the rear end of the paddle 17 and the rear end of the opening 501 form a gap, and the rear end surface of the plug pressure plate 9 and the inner wall surface of the plug slot body form a gap. Therefore, in this state, the rotating shell 16 is ineffective to avoid accidental touch.

[0033] At the same time, in order to avoid the friction and wear of the wire core end with the plug pressure plate 9 and the socket pressure plate 34 when switching lines, it is necessary to first move the rotating shell 16 so that the plug pin 151 is matched with the pin hole and the movable sleeve 18 is retreated. When the movable sleeve 18 retreats, it drives the paddle 17, the rotating adjustment sleeve 13, the fixed inner core 12, the rotating cylinder 11 and the plug pressure plate 9 to retreat, so that the plug pressure plate 9 is retracted into the plug slot body, and the plug pressure plate 9 is separated from the socket pressure plate 34, forming a Figure 4 At this time, rotating to switch the line can ensure that the wire core is not worn.

[0034] Furthermore, there is a gap between the front end of the tail housing 6 and the rear end of the rotating adjustment sleeve 13, and two symmetrically distributed tensioning mechanisms are arranged in the tail housing 6, and the tensioning mechanisms include a roller 24, a connecting rod 25, a slider 26, a tensioning spring 27, an end cover 28 and an elastic rope 29; The roller shaft 24 is rotatably connected to one end of the connecting rod 25, and the other end of the connecting rod 25 is fixedly connected to the slider 26. The upper and lower parts of the tail shell 6 are provided with mounting holes. The sliders 26 of the two tensioning mechanisms are slidably arranged in the two mounting holes respectively. The opposite ends of the two mounting holes are detachably connected to the end cover 28 by bolts, threads, etc., and the tensioning spring 27 is arranged between the end cover 28 and the slider 26. The opposite sides of the two sliders 26 are fixedly connected to one end of the elastic rope 29 respectively, and the other end of the elastic rope 29 passes through the end cover 28 and is connected to the rear end plate 21; the slider 26 and the connecting rod 25 form a stepped structure to form a restraining function. When the line is not exchanged, that is, Figure 1 , Figure 2 In the default initial state, under the action of the tension spring 27, the distance between the slider 26 and the end cover 28 is the maximum, and the connecting rod 25 extends the longest distance.

[0035] The first cable 1 and the second cable 2 pass through the interior of the rear shell 6, and the parts of the first cable 1 and the second cable 2 located in the rear shell 6 are between the two rollers 24, and the two rollers 24 respectively press against the first cable 1 and the second cable 2 to form a bending state; When the first cable 1 and the second cable 2 exchange positions, the two rollers 24 move in opposite directions, so that the first cable 1 and the second cable 2 are stretched naturally.

[0036] The front end of the tail housing 6 is provided with through holes through which the first cable 1 and the second cable 2 pass respectively. The interval between the front end of the tail housing 6 and the rear end of the rotating adjustment sleeve 13 is used for the free bending stroke of the cables. When the rotating adjustment sleeve 13 retreats, the cables in the interval are freely bent at a small angle. The two tensioning mechanisms are distributed above the first cable 1 and below the second cable 2. The rollers 24 of the two tensioning mechanisms are perpendicular to the first and second cables, forming a spatial staggered distribution to support the tensioning of the first and second cables. The roller 24 squeezes the first cable 1 downward to form a bent state, and the other roller 24 squeezes the second cable 2 upward to form a bent state.

[0037] Since the front and rear ends of the first and second cables are fixed, when the first cable 1 and the second cable 2 are exchanged, the rotating adjustment sleeve 13 rotates 180°, and the first and second cables located between the rotating adjustment sleeve 13 and the tail shell 6 are twisted, and the length of the cable in this part is relatively elongated, so the length of the cable part located in the tail shell 6 is relatively shortened. During the rotation of the rotating adjustment sleeve 13, the rear end plate 21 drives the elastic rope 29 to move, so that the elastic rope 29 pulls the slider 26 to move, and the two rollers 24 move away from each other, so that the first and second cables located in the tail shell 6 return from the bent state to the naturally stretched state, forming a Figure 5 The tension spring 27 plays a reset function. When the rotating adjustment sleeve 13 rotates again, the two rollers 24 approach each other under the action of the tension spring 27, supporting and bending the cable, and the cable between the front end of the tail housing 6 and the rear end of the rotating adjustment sleeve 13 naturally stretches, that is, returns to the state of the rotating adjustment sleeve 13. Figure 2 Status in.

[0038] The advantage of designing a tensioning mechanism is that it can provide a bending deformation stroke for the first and second cables, and avoid the cables between the front end of the tail shell 6 and the rear end of the rotating adjustment sleeve 13 from being entangled. If the tensioning mechanism is not designed, the cables between the front end of the tail shell 6 and the rear end of the rotating adjustment sleeve 13 need to be long enough and in a bent state. When this part of the cable is in a bent state, its bending angle is too large. If the cable is an optical fiber, it is not conducive to its transmission, and it is easy to entangle and knot when the cable is exchanged. The present invention solves this problem through a tensioning mechanism, which can maintain the reasonable bending and stretching state of the first and second cables. It should be noted that in the present invention, if the cable is an optical fiber, the bending of the first and second cables at various places does not affect their transmission, such as the bending of the first and second cables at the roller 24, the bending of the first and second cables at the place where they enter the tail shell 6, and the bending of the first and second cables after exchanging lines.

[0039] Furthermore, the rear end of the rear end plate 21 is fixedly connected to the outer adjustment sleeve 22 , the inner side of the outer adjustment sleeve 22 is rotatably connected to the inner adjustment sleeve 23 , and the inner side surface of the inner adjustment sleeve 23 is fixedly connected to one end of the elastic rope 29 away from the slider 26 .

[0040] The outer adjustment sleeve 22 and the inner adjustment sleeve 23 can be connected by a threaded connection. By rotating the inner adjustment sleeve 23, the front and rear position of the inner adjustment sleeve 23 can be adjusted, thereby adjusting the inclination of the elastic rope 29, so as to adjust the position of the roller 24, thereby adjusting the maximum bending degree of the cable. When the rotating housing 16 rotates, the rear end plate 21, the outer adjustment sleeve 22 and the inner adjustment sleeve 23 rotate simultaneously, and the elastic rope 29 is wound around the plug housing 5.

[0041] Furthermore, the rear end of the tail shell 6 is provided with an opening, the end surface of which is detachably connected to the rear cover plate 7 by means of bolts, snaps, etc., and the first cable 1 and the second cable 2 pass through the rear cover plate 7.

[0042] Specifically, the rear cover plate 7 can be fixedly connected to the first cable 1 and the second cable 2 through a cable connector, and can also be connected in the following manner: the rear end of the rear cover plate 7 is fixedly connected to two protrusions 701 with a hollow structure, the first cable 1 and the second cable 2 pass through the two protrusions 701 respectively, and the two protrusions 701 are sleeved with a pressure head 30, the rear end of the pressure head 30 is a reduced diameter end with a reduced inner diameter, the first cable 1 and the second cable 2 pass through the reduced diameter ends of the two pressure heads 30 respectively, and the reduced diameter ends and the first cable 1 and the second cable 2 can be fixed by interference fit and bolt fastening. A connecting block 32 is fixed between the two pressure heads 30, and an adjusting rod 31 is threadedly connected to the connecting block 32. The adjusting rod 31 is rotatably connected to the rear cover plate 7. By rotating the adjusting rod 31, the front and rear positions of the two pressure heads 30 can be adjusted, thereby adjusting the length of the first cable 1 and the second cable 2 extending into the tail housing 6, so as to adjust the tightness of the first cable 1 and the second cable 2.

[0043] Further, the shaft body 8 is a hollow structure, in which a sliding shaft 801 is slidably arranged, a threaded hole 802 is arranged at the front end of the sliding shaft 801, a pressing block 803 is fixedly connected to the outer side surface of the rear end of the sliding shaft 801, and a waist-shaped hole is opened on the shaft body 8 for the pressing block 803 to move forward and backward, and the pressing block 803 passes through the waist-shaped hole; A crimping core 36 is provided in the socket housing 33, the front end of the crimping core 36 is fixedly connected to the elastic ring plate 35, the front end of the elastic ring plate 35 is fixedly connected to the socket pressing plate 34, and the front ends of the third cable 3 and the fourth cable 4 are fixedly connected in the crimping core 36; A screw rod 37 is disposed in the crimping core 36 , and the screw rod 37 is adapted to the threaded hole 802 . The screw rod 37 is used to be threadedly connected to the threaded hole 802 , so that the pressing block 803 presses the rear end of the rotation adjustment sleeve 13 .

[0044] The width of the waist-shaped hole is greater than that of the pressing block 803, providing a travel range for the pressing block 803 to move forward and backward, and can restrict the rotation of the sliding shaft 801. The elastic ring plate 35 can be made of rubber.

[0045] Furthermore, the socket pressure plate 34 and the elastic ring plate 35 are provided with a circular hole for the front end of the shaft body 8 to be inserted; the crimping core 36 is provided with a stepped through hole, the stepped through hole is connected to the circular hole, the small diameter part of the stepped through hole is in the front, and the large diameter part is in the rear, the screw 37 is located in the small diameter part, and a pressure ring 39 is slidably provided in the large diameter part, the pressure ring 39 is sleeved on the screw 37 and fixedly connected to the screw 37, a locking spring 38 is provided between the pressure ring 39 and the small diameter part, the rear end of the pressure ring 39 abuts against the front end of the locking rod 40, and the locking rod 40 is provided with an annular protrusion 401, the rear end of the socket housing 33 is detachably connected to the fixing plate 41, the locking rod 40 can slidably pass through the fixing plate 41, and the annular protrusion 401 abuts against the fixing plate 41; The front end of the locking rod 40 is provided with a spline hole adapted to the screw rod 37, and the rear end of the screw rod 37 is provided with a spline, and the rear end of the screw rod 37 is inserted into the spline hole and connected by the spline. The spline connection ensures that the locking rod 40 drives the screw rod 37 to rotate while the screw rod 37 can move forward and backward.

[0046] Specifically, the stepped through hole includes a small diameter portion and a large diameter portion, the small diameter portion is located at the front end, and the large diameter portion is located at the rear end, and the stepped through hole, the circular hole and the shaft body 8 are coaxially arranged. The circular hole is adapted to the shaft body 8, and the aperture of the circular hole is larger than the small diameter portion. The annular protrusion 401 is adapted to the large diameter portion, and under the action of the locking spring 38, the pressure ring 39 abuts against the front end of the locking rod 40 toward the rear, and the annular protrusion 401 abuts against the fixing plate 41 toward the rear. The rear end of the locking rod 40 passes through the fixing plate 41.

[0047] like Figure 3 When the socket end and the plug end are matched, the shaft body 8 is inserted into the round hole, and then the locking rod 40 is pushed to move the pressure ring 39 and the screw rod 37 forward, so that the screw rod 37 contacts the threaded hole 802, and then the locking rod 40 is rotated. The locking rod 40 drives the screw rod 37 to rotate through the spline, so that the screw rod 37 is threadedly connected to the threaded hole 802. Under the limiting action of the pressure block 803, the sliding shaft 801 moves forward until the pressure block 803 presses the rotating adjustment sleeve 13, and the locking rod 40 is continuously rotated until it cannot be tightened. At this time, the lock The tightening spring 38 is compressed, and under the action of the locking spring 38, the locking spring 38 presses the pressing ring 39 toward the left, so that the sliding shaft 801 tends to move forward, the plug pressing plate 9 and the socket pressing plate 34 fit tightly, and the elastic ring plate 35 is slightly compressed, which can ensure close contact between the wire cores. In this state, through the compression of the pressure block 803, the rotating adjustment sleeve 13 is in the maximum forward stroke position, and the rotating adjustment sleeve 13 is locked and cannot move backward, so it also has the function of locking the rotating adjustment sleeve 13.

[0048] The specific workflow of the present invention is as follows: like Figure 1 , start to align the socket end and the plug end, the socket shell 33 and the plug shell 5 are fitted and connected by bolts, the shaft body 8 is inserted into the round hole, the cores of the first cable 1 and the third cable 3 are in contact, and the cores of the second cable 2 and the fourth cable 4 are in contact, forming Figure 2 If the line does not need to be exchanged, the locking process is carried out.

[0049] The locking process is as follows: Figure 3 , push the locking rod 40 to the right, then rotate the locking rod 40 so that the screw 37 is threadedly connected to the threaded hole 802, and the sliding shaft 801 moves forward until the pressure block 803 presses the rotating adjustment sleeve 13, and continues to rotate the locking rod 40 until it cannot be tightened. The locking spring 38 presses the pressing ring 39 toward the left, and the sliding shaft 801 tends to move forward. The plug pressure plate 9 and the socket pressure plate 34 fit tightly, the elastic ring plate 35 is slightly compressed, and the pressure block 803 presses the rotating adjustment sleeve 13 to the maximum forward stroke position. The rotating adjustment sleeve 13 is locked and cannot move backward.

[0050] When switching lines: Figure 4 , first move the rotating housing 16 backward to the maximum stroke position, so that the pin 151 is matched with the pin hole, the return spring 14 is squeezed by the block 19 and compressed, and the movable sleeve 18 retreats to the maximum stroke position. While the movable sleeve 18 retreats, it drives the paddle 17, the rotating adjustment sleeve 13, the fixed inner core 12, the rotating column 11 and the plug pressing plate 9 to retreat, the paddle 17 retreats to abut the rear end wall of the opening 501, the plug pressing plate 9 retracts into the plug slot, and the plug pressing plate 9 is separated from the socket pressing plate 34. Then rotate the rotating housing 16 to the maximum stroke position, that is, the rotating housing 16 rotates 180°, the paddle 17 rotates from one end of the opening 501 to abut the other end of the opening 501, and the cable part between the rotating adjustment sleeve 13 and the tail housing 6 is in a crossed state. The first cable 1 and the second cable 2 exchange positions, so that the cores of the first cable 1 and the fourth cable 4 are in contact, and the cores of the second cable 2 and the third cable 3 are in contact, completing the line switching. At this time, under the action of the reset spring 14, the rotating housing 16 is reset forward, and the stopper 19 pushes the movable sleeve 18 forward until the paddle 17 abuts against the front end of the opening 501, and the pin hole at the front end of the movable sleeve 18 is spaced apart from the latch pin 151, so that the rotating housing 16 fails to be rotated to avoid accidental touch.

[0051] In addition, during the process of exchanging lines, that is, during the rotation of the rotating shell 16, the rear end plate 21 drives the outer adjustment sleeve 22 and the inner adjustment sleeve 23 to rotate, and the inner adjustment sleeve 23 drives the elastic rope 29 to move, so that the elastic rope 29 pulls the slider 26 to move, and the two rollers 24 move away from each other, so that the first and second cables located in the tail shell 6 return from the bent state to the naturally stretched state.

[0052] After the lines are swapped, the locking process is performed, and finally the Figure 5 Status in.

[0053] When you need to switch back to the original line after switching lines, Figure 5 Back to Figure 3 state, similarly, first move the rotating housing 16 backward to the maximum stroke position, then rotate the rotating housing 16 in the opposite direction, so that the rotating housing 16 rotates 180°, and the paddle 17 rotates to abut the upper end of the opening 501, so that the first cable 1 and the second cable 2 return to the initial position, the cores of the first cable 1 and the third cable 3 are in contact, and the cores of the second cable 2 and the fourth cable 4 are in contact, and then the rotating housing 16 is reset forward. In this process, the tensioning spring 27 is reset, and the elastic rope 29 moves with the slider 26. The two rollers 24 approach each other, supporting and bending the first and second cables, and the cable between the front end of the tail shell 6 and the rear end of the rotating adjustment sleeve 13 is naturally stretched. Similarly, the locking process is finally carried out and returns to Figure 3 Status in.

[0054] The embodiments described above are only descriptions of the preferred modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A dual-pin connector, characterized in that: Including a socket end and a plug end; The plug end comprises a first cable (1), a second cable (2), a plug housing (5), a tail housing (6), a plug pressure plate (9) and a rotation adjustment sleeve (13); The first cable (1) and the second cable (2) are fixed on the rotating adjustment sleeve (13); the rotating adjustment sleeve (13) is rotatably arranged in the plug housing (5); the rear end of the plug housing (5) is detachably connected to the tail housing (6); the front end of the plug housing (5) is provided with the plug pressing plate (9); the wire cores in the first cable (1) and the second cable (2) respectively pass through the plug pressing plate (9) and the end faces of the wire cores are flush with the end face of the plug pressing plate (9); the rear ends of the first cable (1) and the second cable (2) pass through the tail housing (6); The socket end comprises a third cable (3), a fourth cable (4), a socket shell (33) and a socket pressure plate (34); the third cable (3) and the fourth cable (4) pass through the interior of the socket shell (33); the socket pressure plate (34) is arranged at the front end of the socket shell (33); the wire cores in the third cable (3) and the fourth cable (4) pass through the socket pressure plate (34) respectively, and the end faces of the wire cores are flush with the end face of the socket pressure plate (34); When the plug end is plugged into the socket end, the plug housing (5) and the socket housing (33) are detachably connected, the first cable (1) and the third cable (3) are connected by contacting the wire core end faces, and the second cable (2) and the fourth cable (4) are connected by contacting the wire core end faces; The rotating adjustment sleeve (13) is used to rotate to exchange the positions of the first cable (1) and the second cable (2), so that the first cable (1) and the fourth cable (4) are connected, and the second cable (2) and the third cable (3) are connected.

2. A dual-core connector according to claim 1, characterized in that: The plug end further comprises a shaft (8), a fixed sleeve (10), a rotating cylinder (11) and a fixed inner core (12); The plug housing (5) is a hollow structure, and its rear end opening is detachably connected to the tail housing (6). The plug housing (5) is detachably connected to the fixing sleeve (10). The rotating cylinder (11) is rotatably arranged in the fixing sleeve (10). The rotating cylinder (11) is a hollow structure and is rotatably sleeved on the shaft (8). The rear end of the shaft (8) is fixedly connected to the tail housing (6). The rear end of the rotating cylinder (11) is fixedly connected to the rotating adjustment sleeve (13). The rotating adjustment sleeve (13) is sleeved on the shaft (8). Two through holes are arranged on the rotating cylinder (11). The fixed inner core (12) is fixedly connected to the two through holes. The fixed inner core (12) is a hollow structure and the hollow part thereof is a stepped hole. The front end of the rotating cylinder (11) is fixedly connected to the plug pressure plate (9). The first cable (1) and the second cable (2) pass through the rotating adjustment sleeve (13) and are respectively plugged into the two fixed inner core bodies (12); the wire cores in the first cable (1) and the second cable (2) pass through the front ends of the first cable (1) and the second cable (2); and the wire cores in the first cable (1) and the second cable (2) pass through the stepped holes of the two fixed inner core bodies (12).

3. A dual-core connector according to claim 2, characterized in that: The outer side surface of the rotation adjustment sleeve (13) is connected to a paddle (17); an opening portion (501) adapted to the paddle (17) is provided on the plug housing (5); the paddle (17) passes through the opening portion (501); the opening portion (501) is used to restrict the rotation stroke of the paddle (17) so that the maximum rotation angle of the paddle (17) is 180°, thereby allowing the first cable (1) and the second cable (2) to exchange positions.

4. A dual-core connector according to claim 3, characterized in that: A rotating shell (16) is sleeved on the plug shell (5), the front end of the rotating shell (16) is connected to the front sleeve (15), the rear end of the rotating shell (16) is connected to the rear plate (21), an annular chamber is formed between the inner side of the rotating shell (16) and the plug shell (5), a movable sleeve (18) is arranged in the annular chamber, the movable sleeve (18) is movably sleeved on the plug shell (5), one end of the paddle (17) passing through the opening (501) is detachably connected to the movable sleeve (18), the rear end of the movable sleeve (18) abuts against a stopper (19), the stopper (19) is fixedly connected to the inner side surface of the rotating shell (16), a limiting ring (20) is arranged in the annular chamber, the limiting ring (20) is fixedly connected to the plug shell (5), and a return spring (14) is arranged between the limiting ring (20) and the stopper (19); The rear end of the front sleeve (15) is provided with a latch pin (151), and the front end of the movable sleeve (18) is provided with a pin hole adapted to the latch pin (151).

5. A dual-core connector according to claim 4, characterized in that: The plug pin (151) and the pin hole are spaced apart, a plug slot body is provided at the front end of the plug housing (5), the plug pressure plate (9) is provided in the plug slot body, a rear end surface of the plug pressure plate (9) and an inner wall surface of the plug slot body are spaced apart, and a space is provided between a rear end of the paddle (17) and a rear end of the opening (501); When the rotating housing (16) moves backward, the plug pin (151) is inserted into the pin hole, the plug pressing plate (9) abuts against the inner wall surface of the plug slot body, and the plug pressing plate (9) and the socket pressing plate (34) are spaced apart.

6. A dual-core connector according to claim 4, characterized in that: There is a gap between the front end of the tail shell (6) and the rear end of the rotating adjustment sleeve (13), and two symmetrically distributed tensioning mechanisms are arranged in the tail shell (6), and the tensioning mechanisms include a roller shaft (24), a connecting rod (25), a slider (26), a tensioning spring (27), an end cover (28) and an elastic rope (29); The roller shaft (24) is rotatably connected to one end of the connecting rod (25), and the other end of the connecting rod (25) is fixedly connected to the slider (26). The upper and lower parts of the tail shell (6) are both provided with mounting holes. The sliders (26) of the two tensioning mechanisms are respectively slidably arranged in the two mounting holes. The opposite ends of the two mounting holes are respectively detachably connected to the end covers (28). The tensioning spring (27) is arranged between the end covers (28) and the sliders (26). The opposite sides of the two sliders (26) are respectively fixedly connected to one end of the elastic rope (29), and the other end of the elastic rope (29) passes through the end covers (28) and is connected to the rear end plate (21); The first cable (1) and the second cable (2) pass through the interior of the tail shell (6); the parts of the first cable (1) and the second cable (2) located inside the tail shell (6) are located between the two rollers (24); the two rollers (24) respectively press against the first cable (1) and the second cable (2) to form a bent state; When the first cable (1) and the second cable (2) exchange positions, the two rollers (24) move in opposite directions, so that the first cable (1) and the second cable (2) are naturally stretched.

7. A dual-core connector according to claim 6, characterized in that: The rear end of the rear end plate (21) is fixedly connected to the outer adjustment sleeve (22), the inner side of the outer adjustment sleeve (22) is rotatably connected to the inner adjustment sleeve (23), and the inner side surface of the inner adjustment sleeve (23) is fixedly connected to an end of the elastic rope (29) away from the slider (26).

8. The dual-core connector according to claim 6, characterized in that: The rear end of the tail housing (6) is provided with an opening, the end surface of which is detachably connected to a rear cover plate (7), and the first cable (1) and the second cable (2) pass through the rear cover plate (7).

9. The dual-core connector according to claim 2, characterized in that: The shaft body (8) is a hollow structure, in which a sliding shaft (801) is slidably arranged, a threaded hole (802) is arranged at the front end of the sliding shaft (801), a pressing block (803) is fixedly connected to the outer side surface of the rear end of the sliding shaft (801), and a waist-shaped hole is opened on the shaft body (8) for the pressing block (803) to move forward and backward, and the pressing block (803) passes through the waist-shaped hole; A crimping core (36) is arranged in the socket housing (33); the front end of the crimping core (36) is fixedly connected to the elastic ring plate (35); the front end of the elastic ring plate (35) is fixedly connected to the socket pressing plate (34); and the front ends of the third cable (3) and the fourth cable (4) are fixedly connected in the crimping core (36); A screw rod (37) is arranged inside the crimping core (36), and the screw rod (37) is adapted to the threaded hole (802); the screw rod (37) is used to be threadedly connected to the threaded hole (802), so that the pressing block (803) presses the rear end of the rotating adjustment sleeve (13).

10. A dual-core connector according to claim 9, characterized in that: The socket pressing plate (34) and the elastic ring plate (35) are provided with a circular hole for the front end of the shaft body (8) to be inserted; the crimping core (36) is provided with a stepped through hole, the stepped through hole is connected to the circular hole, the small diameter part of the stepped through hole is in the front, and the large diameter part is in the rear, the screw rod (37) is located in the small diameter part, and a pressing ring (39) is slidably provided in the large diameter part, the pressing ring (39) is sleeved on the screw rod (37) and fixedly connected to the A screw rod (37), a locking spring (38) is provided between the pressure ring (39) and the small diameter portion, the rear end of the pressure ring (39) abuts against the front end of a locking rod (40), the locking rod (40) is provided with an annular protrusion (401), the rear end of the socket housing (33) is detachably connected to a fixing plate (41), the locking rod (40) can slide through the fixing plate (41), and the annular protrusion (401) abuts against the fixing plate (41); The front end of the locking rod (40) is provided with a spline hole adapted to the screw rod (37), the rear end of the screw rod (37) is provided with a spline, and the rear end of the screw rod (37) is inserted into the spline hole and connected via the spline.

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