Network cable mistaken insertion prevention locking device and wiring method thereof

Abstract

The present application belongs to the technical field of network communication connector, especially to a network cable anti-misplug locking device, comprising a line end coding ring and a port end female seat, the line end coding ring is arranged on the crystal head of the network cable, and at least two coding teeth are arranged on the line end coding ring and extend along the insertion direction; the port end female seat is arranged and fixed on the outside of the equipment network port, the front end surface of the port end female seat is provided with a central passage and a tooth hole corresponding to each coding tooth; a shutter door and a latch are further arranged in the port end female seat, the latch is linked with all the trigger pieces through a linkage mechanism, and the latch is separated from the shutter door only when all the trigger pieces are pressed at the same time; the present application has the beneficial effects of physical anti-fumble, one-to-one correspondence, anti-misplug, free pressure connection, universal compatibility, reconfigurable coding and the like; the present application further discloses a wiring method of the network cable anti-misplug locking device.

Description

Technical Field

[0001] This invention belongs to the field of network communication connection device technology, and in particular discloses a network cable anti-misinsertion locking device and its wiring method. Background Technology

[0002] The RJ45 interface is a universal standard interface for network devices and network cables. All external network leased lines, internal network cables, and management lines in the same computer room use RJ45 connectors with identical shapes, making them difficult to distinguish with the naked eye.

[0003] The following problems commonly exist in actual operation and maintenance: 1. Prone to incorrect insertion: Maintenance personnel may mistakenly insert the external network leased line into the internal network port, or insert the network cable for other services into the wrong port. This may result in service interruption or, in severe cases, security incidents such as unauthorized interconnection between the internal and external networks. 2. Unreliable labeling: Existing technologies mostly use color labels, cable ties, and tags to distinguish cables. These labels are easily soiled, fall off, or are misplaced, and they rely entirely on manual identification, which cannot physically prevent incorrect insertion. 3. Prone to accidental disconnection: The standard RJ45 connector relies solely on a spring clip for connection and lacks a locking mechanism, making the cable easily loosened or pulled out unintentionally; when plugging it back in after disconnection, it may also be inserted into the wrong port. 4. Lack of access control: Anyone can freely plug and unplug network device ports, lacking authorization and record-keeping mechanisms.

[0004] To address the aforementioned issues, existing technologies such as dust plugs and port locks can only block ports and cannot achieve a one-to-one correspondence where "a certain wire can only be inserted into a certain port." Although coded connectors used in the industrial field (such as M12 circular coded connectors) have anti-misinsertion coding structures, their interface form is incompatible with RJ45 and cannot be used in existing network equipment and standard network cables. Although electronic patch panels can monitor port status, they are costly and cannot physically prevent incorrect insertion.

[0005] In the prior art, such as US Patent 8632352, a device for locking a network cable in a socket is disclosed. It can only lock the inserted network cable to prevent it from being pulled out. It does not have a coding structure and cannot achieve the one-to-one correspondence of "one cable to one port" to prevent misinsertion. US Patent Publication US20040192105A1 discloses a keying means for an electrical connector, which uses a key structure to prevent mis-mating. However, it is applied to ribbon cable connectors, not RJ45 interfaces, and the key structure is a fixed structure that cannot be disassembled and replaced as needed. The coding method of "modular tooth shape + non-nested multi-shape combination" is not disclosed. US Patent 8038460 discloses a network plug guard for blocking or protecting unused ports, but does not disclose a combination of coded structure and locking mechanism.

[0006] Chinese patent CN121507467A discloses a coded connector with anti-misinsertion features and its assembly and usage method. The patent includes a plug assembly and a socket assembly that are mutually compatible and have anti-misinsertion protrusions and grooves. The plug assembly includes a plug insulator, a plug end, a conductive terminal, a copper tube, a torsion spring, a plastic sleeve, and a back cover. The plug insulator has a first cavity, a second cavity on one side, and a third cavity on the other side. The plug end is located within the first cavity. One end of the copper tube is fitted onto the plug end. The conductive terminal end is fitted onto the outer side of the copper tube at the end located within the first cavity. The torsion spring is located inside the copper tube, and the plastic sleeve is fitted onto the outer side of the copper tube. However, this patent suffers from problems such as a relatively complex structure, unsatisfactory anti-misinsertion and anti-misremoval effects, and non-reconfigurable coding.

[0007] Therefore, the existing technologies described above cannot completely solve the aforementioned problems. Summary of the Invention

[0008] To address the aforementioned problems, the present invention aims to disclose a network cable anti-misinsertion locking device and its wiring method, which is implemented using the following technical solution.

[0009] A network cable anti-misinsertion locking device includes a cable end coding ring and a port female connector: The wire end coding ring is detachably fitted onto the crystal head of the network cable. The wire end coding ring has at least two coding teeth that extend in the insertion direction. The coding teeth are 4mm long. The distance between the front end of the coding teeth and the front end of the crystal head in the insertion direction is the first distance, which is 13mm. The port end female is covered and fixed to the outside of the equipment network port. The front end face of the port end female has a central channel for the crystal head to be inserted, as well as a tooth hole corresponding to each coding tooth. Each tooth hole is equipped with a trigger element, which is located 2.0mm inside the tooth hole along the insertion direction. The port end socket is also equipped with a gate-type stop and a latch. The stop is located in the central channel, and the distance between the stop and the front end face of the port end socket is the second distance, which is 16mm. The stop can slide into the receiving groove of the central channel wall in a direction perpendicular to the insertion direction. The latch is linked to all triggers through a linkage mechanism. The latch disengages from the stop only when all triggers are pressed down at the same time. When any trigger is not pressed down, the latch locks the stop, and the retraction direction of the latch is perpendicular to the direction of the thrust force on the stop along the insertion direction. The distance from the front end face of the port female connector to the edge of the device's network port is the third distance, which is 18mm. The first distance is smaller than the second distance, and the second distance is smaller than the third distance. The socket also has a locking clip inside, which is used to hook the back shoulder of the crystal head when it is inserted into place, so that the crystal head cannot be pulled out directly; the socket also has a paddle slot for an unlocking tool to be inserted to release the locking clip.

[0010] The aforementioned network cable anti-misinsertion locking device has two coded teeth, which are located at the two o'clock and eight o'clock positions around the circumference of the RJ45 connector insertion channel, arranged diagonally.

[0011] The aforementioned network cable anti-misinsertion locking device has a cross-sectional shape of the coding teeth selected from one of square, circular, equilateral triangle, and trapezoidal shapes. The enveloping circle diameters of the four cross-sections are the same and they do not nest with each other. The opening of the tooth hole is a template with the same shape as the corresponding coding tooth cross-section. The tooth hole is a blind hole with a depth of 16.5mm, which is greater than the depth of the front end of the coding tooth entering the tooth hole when the coding tooth is inserted into place by 13mm.

[0012] The aforementioned network cable anti-misinsertion locking device has five usable positions around the RJ45 connector insertion channel, located at the two o'clock, four o'clock, six o'clock, eight o'clock, and ten o'clock positions respectively; any two positions can be selected and combined with two cross-sectional shapes to form a code, with 160 possible code combinations; the positions of the coding teeth on the cable end coding ring correspond one-to-one with the positions of the teeth holes on the connector end.

[0013] The aforementioned network cable anti-misinsertion locking device has a 2.0mm thick gate, a receiving groove at the bottom of the central channel, and a return spring between the gate and the end socket; the latch is a transverse sliding latch that slides in the hidden groove on the side wall of the end socket.

[0014] The aforementioned network cable anti-misinsertion locking device has a trigger element that is a side pressure block located on the side wall of the tooth hole. When the coding tooth enters the tooth hole by 2.0mm, it presses the trigger element. At this time, the front end of the crystal head is 15mm away from the front end face of the socket, which is less than the position of the stop door, which is 16mm away from the front end face of the socket.

[0015] The aforementioned network cable anti-misinsertion locking device has a central channel height of 8.5mm, a 5mm deep spring slot on the top surface of the central channel, and an entrance slope to ensure that the self-locking spring of the crystal head is flattened throughout the insertion process; a 0.5mm thick tongue extends from the rear of the female connector to cover the locking step of the device's network port.

[0016] The aforementioned network cable anti-misinsertion locking device has a locking shoulder spring located on the top surface of the central channel, 4mm from the front face of the port end female connector. The side of the locking shoulder spring facing the withdrawal direction is the blocking surface. When the crystal head is inserted into place, the front end of the crystal head is 26mm from the front face of the port end female connector and enters the network port of the device by 8mm. The rear shoulder of the crystal head is located 4mm from the front face of the port end female connector. The hook head hooks the rear shoulder, and the pull-out force causes the hook head to generate a tightening torque.

[0017] The aforementioned network cable anti-misinsertion locking device has a port female connector fixed to the network port opening of the equipment panel by an upper edge claw and an elastic support piece located at its rear. The upper edge claw hooks the upper edge of the opening, and the elastic support piece supports the lower edge of the opening. An adhesive ring is also provided between the port female connector and the equipment panel.

[0018] The aforementioned network cable anti-misinsertion locking device further includes a depth washer for adapting to the recess of the device's network port edge relative to the device panel; a sealing ring is also provided between the port end female and the device panel.

[0019] The aforementioned network cable anti-misinsertion locking device features a heat-shrinkable coded ring at the cable end, with hot melt adhesive applied to the inner wall of the coded ring. The coded teeth engage with the coded ring at the cable end, allowing for disassembly and replacement using coded pliers. The surfaces of the coded ring at the cable end and the female connector at the port end are also equipped with coded nameplates.

[0020] The aforementioned network cable anti-misinsertion locking device further includes an electronic verification module, which includes an NFC tag located in the cable end coding ring, a reader located in the port female connector, and an indicator device located on the port female connector; when the identifier read by the reader matches the preset authorization information, the indicator device outputs a first indication, and when they do not match or there is no identifier, it outputs a second indication.

[0021] The aforementioned network cable anti-misinsertion locking device also includes an electromagnetic locking pin electrically connected to the reader in the female connector at the port end. The electromagnetic locking pin retracts only when the identity verification is successful, allowing the latch to disengage from the barrier.

[0022] A wiring method for a network cable anti-misinsertion locking device, applied to the aforementioned network cable anti-misinsertion locking device, includes the following steps: S1. Assign code: Select a code for the device network port. The code includes the combination of tooth hole position and the combination of code tooth cross-sectional shape. S2. Install the coding component: Install the toothed template corresponding to the code onto the toothed hole of the mouth end female seat, and install the coding tooth of the same code onto the coding ring at the line end; S3. Register the wiring table: Establish the correspondence between cable number, port number and code value; S4. Insertion verification and locking: Align the cable end coding ring with the port end female connector and insert it. When the coding matches, the crystal head passes through the barrier and is inserted into the device network port to the locking position and is locked by the locking shoulder spring. When the coding does not match, the crystal head is blocked outside the edge of the device network port. S5. Unlocking, pulling out and reinserting: After releasing the lock shoulder spring through the lever port with an unlocking tool, pull out the lock. When reinserting, only the original port with the same code is allowed to be inserted and locked again.

[0023] This invention has the advantages of physical error prevention, one-to-one correspondence, prevention of accidental disconnection, no need for repeated crimping, universal compatibility, and reconfigurable coding. Attached Figure Description

[0024] Figure 1 This is an overall assembly cross-sectional view of Embodiment 1 of the present invention in the locked state.

[0025] Figure 2 This is a schematic diagram of the explosive decomposition of Embodiment 1 of the present invention.

[0026] Figure 3 This is a schematic diagram of five available station locations in Embodiment 1 of the present invention.

[0027] Figure 4 This is a schematic diagram of four non-nested cross sections of the same envelope circle in Embodiment 1 of the present invention.

[0028] Figure 5 This is a schematic diagram comparing tooth hole matching / mismatch in Embodiment 1 of the present invention.

[0029] Figure 6 This is a first cross-sectional schematic diagram (locked state) of the linkage principle of the door stop-latch-trigger element in Embodiment 1 of the present invention.

[0030] Figure 7 This is a second cross-sectional schematic diagram (released state) of the linkage principle of the door stop-latch-trigger element in Embodiment 1 of the present invention.

[0031] Figure 8 This is a schematic diagram of the first usage state of Embodiment 1 of the present invention (misaligned line rejection state).

[0032] Figure 9 This is a schematic diagram of the second usage state (bare wire rejection state) of Embodiment 1 of the present invention.

[0033] Figure 10 This is a schematic diagram of the third usage state (line unlocking state) of Embodiment 1 of the present invention.

[0034] Figure 11 This is a schematic diagram of the fourth usage state (locked state) of Embodiment 1 of the present invention.

[0035] Figure 12 This is a schematic diagram of the fifth usage state (unlocked and unplugged state) of Embodiment 1 of the present invention.

[0036] Figure 13 This is a front view of the female connector at the mouth end of Embodiment 1 of the present invention.

[0037] Figure 14 This is a left view of the female connector at the mouth end of Embodiment 1 of the present invention.

[0038] Figure 15This is a top view of the female end of Embodiment 1 of the present invention.

[0039] Figure 16 This is a schematic diagram of the implementation and fixing method of the desktop computer network port in Embodiment 1 of the present invention.

[0040] Figure 17 This is a cross-sectional view of the upper edge fixing method of the mesh opening in Embodiment 1 of the present invention.

[0041] Figure 18 This is a cross-sectional view of the overall assembly in the locked state of Embodiment 2 of the present invention.

[0042] In the figure, the corresponding figures are as follows: 1-Port female connector, 2-Line end encoder ring, 3-Encoder tooth, 4-Tooth hole, 5-Gate gate, 6-Latch, 7-Trigger element, 8-Linkage mechanism, 9-Reset spring, 10-Shoulder spring, 11-Pulley opening, 12-Unlocking tool, 13-Upper edge claw, 14-Elastic support piece, 15-Adhesive ring, 16-Tongue piece, 17-Entry slope, 18-RJ45 connector, 19-Network cable, 20-Device network port, 21-Device panel, 22-RJ45 connector spring, 23-Encoder nameplate, 30-Depth gasket, 31-Clip sleeve, 32-Protruding key block, 33-Keyway module. Detailed Implementation

[0043] Example 1: As Figures 1 to 17 A network cable anti-misinsertion locking device includes a cable end coding ring 2 and a port end female socket 1; The end coding ring 2 is detachably installed on the exposed section of the crystal head 18 of the network cable 19. The crystal head 18 is provided with a crystal head spring 22 at the twelve o'clock position. The port end female socket 1 covers and is fixed to the outside of the equipment network port 20. The wire end coding ring 2 is provided with two coding teeth 3, which are located at the two o'clock and eight o'clock positions respectively in the circumference of the insertion channel. The two coding teeth 3 are arranged diagonally to avoid the crystal head spring 22 at the twelve o'clock position, as well as the side wall latches 6 at the three o'clock and nine o'clock positions (to avoid the crystal head spring 22 at the twelve o'clock position and not interfere with the latches 6 in the side wall groove). The tooth length of the coding tooth 3 is 4mm, and the cross-sectional envelope is no greater than 3×3mm; The wire end coding ring 2 is a heat shrink ring. The inner wall of the wire end coding ring 2 is covered with hot melt adhesive. The wire end coding ring 2 is inserted from the front end of the crystal head 18 to the front end of the coding tooth 3 13mm away from the front end of the crystal head 18 and then heat-shrink and fixed. The distance between the front end of the coding tooth 3 and the front end of the crystal head 18 along the insertion direction is the first distance, which is 13mm. The external dimensions of the socket 1 are 32mm×21mm×18mm (width×height×depth). The front end face of the socket 1 has a central channel with a height of 8.5mm and a width of 12.3mm. The central channel is for the crystal head 18 to be inserted. The entrance of the central channel has an entrance slope 17. The top surface of the central channel has a spring slot with a depth of 5mm. The side wall of the port end female seat 1 is provided with a hidden groove, and a latch 6 is provided in the hidden groove. The latch 6 is a horizontal sliding latch. A return spring 9 is provided between the stop door 5 and the port end female seat 1. The latch 6 is a horizontal sliding latch, and the latch 6 slides in the hidden groove through the return spring 9. A return spring 9 is provided between the stop gate 5 and the end seat 1. The return spring 9 presses the stop gate 5 to the closed position. The latch 6 is slidably disposed in the hidden groove on the side wall of the end seat 1. The latch 6 is kept hooked to the stop gate 5 under the elastic force of the return spring 9. The front end face of the socket 1 is also provided with two tooth holes 4 corresponding to the two coding teeth 3. The opening of the tooth hole 4 is a template with the same shape as the cross section of the corresponding coding tooth 3. The tooth hole 4 is a blind hole with a depth of 16.5mm, which is greater than the depth of the front end of the coding tooth 3 entering the tooth hole 4 when it is inserted into the tooth hole. A side-pressure trigger 7 is provided in each tooth hole 4 at a distance of 2.0mm along the insertion direction. The trigger 7 is a side-pressure top block provided on the side wall of the tooth hole 4. When the coding tooth 3 enters the tooth hole 4 by 2.0mm, it presses the trigger 7. At this time, the front end of the crystal head 18 is 15mm away from the front end face of the socket 1, which is less than the position of the stop 5 at a distance of 16mm from the front end face of the socket 1.

[0044] The port end female seat 1 is also provided with a gate-type stop 5 and a latch 6. The stop 5 is located in the central channel. The distance between the stop 5 and the front end face of the port end female seat 1 is the second distance, which is 16mm. The stop 5 can slide into the receiving groove at the bottom of the central channel perpendicular to the insertion direction. Two triggers 7 are connected to the latch 6 via the linkage mechanism 8 to form an AND gate: only when both triggers 7 are pressed down at the same time, the latch 6 retracts into the hidden groove on the side wall of the female seat 1, disengages from the gate 5, and the gate-type gate 5 is unlocked; if neither trigger 7 is pressed down, the latch 6 remains engaged under the action of the return spring 9, and the gate 5 is locked.

[0045] The stop gate 5 is a 2.0mm thick gate plate. The retraction direction of the latch 6 is perpendicular to the thrust force on the stop gate 5 along the insertion direction. Therefore, when it is not unlocked, the stop gate 5 cannot be pushed open (the thrust force between the stop gate and the latch is not less than 100N).

[0046] The distance from the front end of the port female connector 1 to the edge of the device network port 20 is the third distance, which is 18mm. The first distance is less than the second distance, and the second distance is less than the third distance.

[0047] A locking shoulder spring 10 is provided 4mm behind the top surface and front surface of the female connector 1 channel. It is used to hook the rear shoulder of the crystal head 18 when the crystal head 18 is inserted into the middle, so that the crystal head 18 cannot be pulled out directly. The side of the locking shoulder spring 10 facing the withdrawal direction is the blocking surface.

[0048] The port end socket 1 is also provided with a locking shoulder spring 10, which is used to hook the rear shoulder of the crystal head 18 when the crystal head 18 is inserted into the position, so that the crystal head 18 cannot be pulled out directly; the locking shoulder spring 10 is located on the top surface of the central channel, 4mm away from the front end face of the port end socket 1, and the side of the hook of the locking shoulder spring 10 facing the withdrawal direction is the blocking surface; when the crystal head 18 is inserted into the position, the front end of the crystal head 18 is 26mm away from the front end face of the port end socket 1, and enters the equipment network port 20 by 8mm. The rear shoulder of the crystal head 18 is located 4mm away from the front end face of the port end socket 1. The hook hooks the rear shoulder, and the pulling force causes the hook to generate a tightening torque.

[0049] The female connector 1 is also provided with a paddle slot 11 for the unlocking tool 12 to be inserted to release the shoulder spring 10.

[0050] When the RJ45 connector 18 of the network cable 19 is inserted into the central channel, the RJ45 contact spring 22 is pressed down by the inlet ramp 17 and kept flat in the contact spring slot.

[0051] A tongue 16 with a thickness of 0.5mm extends from the rear of the female connector 1 to cover the locking step of the network port 20 of the equipment, so that the crystal head spring 22 does not hook the network port 20 throughout the process. The end female seat 1 is fixed to the mesh opening of the equipment panel 21 by the upper edge claw 13 and the elastic support plate 14 located at its rear. The upper edge claw 13 hooks the upper edge of the opening, and the elastic support plate 14 supports the lower edge of the opening. An adhesive ring 15 is also provided between the end female seat 1 and the equipment panel 21.

[0052] The cross-sectional shape of the coding tooth 3 is selected from one of the following: square, circle, equilateral triangle, and trapezoid. The enclosing circle diameters of the four cross-sections are the same and they do not nest with each other. The coding tooth 3 is snapped into the coding ring 2 and can be disassembled and replaced with coding configuration pliers.

[0053] The crystal head 18 has 5 available positions around the insertion channel, located at the two o'clock, four o'clock, six o'clock, eight o'clock and ten o'clock directions respectively; any two positions can be selected and combined with two cross-sectional shapes to form a code, with 160 possible code combinations; the position of the coding tooth 3 on the wire end coding ring 2 corresponds one-to-one with the position of the tooth hole 4 on the mouth end female seat 1.

[0054] Insertion process: Align the coding tooth 3 with the tooth hole 4 and push it in. When the coding is correct: Tooth 3 enters the tooth hole 4 through the shape template. When the front end of the crystal head 18 reaches 15mm, both teeth 3 simultaneously press the trigger 7 (entering the tooth hole 2.0mm), and the latch 6 retracts; when the front end of the crystal head 18 reaches 16mm, it pushes open the unlocked stop 5 ("unlock first, then door," the unlocking time is 1mm earlier than the door arrival time); continue pushing in, at 18mm it passes the edge of the device's network port 20, at 26mm it inserts into the network port 8mm, and the crystal head 18 pins conduct with the network port contact; at the same time, the rear shoulder of the crystal head 18 reaches 4mm behind the front face, and the hook of the locking shoulder spring 10 hooks the rear shoulder, completing the locking. At this time, the pulling force of the hard pull causes the hook to generate a tightening torque, and the cable cannot be pulled out directly. When the coding is incorrect: the misaligned tooth is blocked by the shape template, the misaligned tooth is pressed by the solid surface of the front end, and the cable stops at 13mm; when there is a missing tooth or a bare wire, the trigger 7 is not pressed down or only one is pressed down, the gate 5 is locked, and the cable stops at 16mm - both are outside the edge (18mm) of the device network port 20, and cannot be physically powered.

[0055] Unlocking: During maintenance, insert the dedicated unlocking tool 12 into the pry slot 11 to pry up the lock shoulder spring 10, and the cable can be pulled out smoothly. After the cable is completely removed, the stop 5 is reset by the return spring 9, the latch 6 re-engages, and the next cable is re-verified. When reinserting after pulling out, the cable can only be inserted back into the original port if the original port code is the same.

[0056] Fixing and Adaptation: The port female connector 1 hooks onto the upper edge of the network port opening on the device panel 21 (I / O baffle) via two upper edge claws 13 at the rear (the claws enter the opening by no more than 1.5mm, utilizing the approximately 3.5mm top gap between the RJ45 head and the opening). Two elastic support plates 14 support the lower edge of the opening. An adhesive ring 15 (VHB rubber ring) can also be provided between the female connector 1 and the device panel 21 for secondary reinforcement. For assembly differences where the network port edge is recessed 0-3mm relative to the panel, three depth gaskets 30 (0 / 1 / 2mm) are provided. A sealing ring can be provided between the female connector 1 and the device panel 21 to achieve IP54 protection. Encoding nameplates 23 are provided on the surface of the cable end coding ring 2 and the port female connector 1, indicating the cable and port numbers. The female connector 1 is made of PC / ABS (flame retardant UL94V-0), the coding teeth 3, tooth hole 4 template, stop door 5, and trigger element 7 are made of POM (self-lubricating and wear-resistant), and the locking shoulder spring 10 and locking latch 6 are made of spring steel; the insertion and extraction life is not less than 2000 times, and the applicable temperature is -20~+70℃.

[0057] Example 2: Figure 18As shown, this embodiment is basically the same as embodiment 1, except that the wire end coding ring 2 is replaced with a sleeve 31 covering the rear section of the crystal head 18. The front end of the sleeve 31 is provided with a protruding key block 32, and the front end of the female connector 1 is correspondingly provided with a keyway module 33. This embodiment is suitable for scenarios where the cable sleeve covers a long area, needs to accommodate more coding teeth (such as three coding teeth, with 640 coding combinations), or high-density cabling in the cabinet.

[0058] Example 3: When there is no claw gripping point near the network port opening of the device panel 21 or the distance between adjacent ports is less than 2mm, the port end female connector 1 can adopt a converter-type front port structure: the fixed plug extends from the rear of the port end female connector 1 and is inserted into the device network port 20 in one go and locked. The front of the port end female connector 1 provides a standard RJ45 front port for cable insertion. The coding, barrier and locking structure are set at the front of the port end female connector 1. In addition, an electronic verification module can be added based on embodiment 1: a passive NFC tag is embedded in the line end coding ring 2, and a reader, indicator (LED) and buzzer are installed in the port end socket 1; when inserted into place, the reader reads the tag identification and compares it with the preset authorization information. When they match, the indicator outputs the first indication (green light is always on), and when they do not match or there is no identification, it outputs the second indication (red light flashes) and alarms; an electromagnetic locking pin electrically connected to the reader can also be installed in the port end socket 1. Only when the identity verification is passed, the electromagnetic locking pin retracts, and the latch 6 can be released from the blocking door 5, forming a dual protection of "mechanical coding to prevent mistakes + electronic identity verification", which are independent of each other.

[0059] Example 4: A wiring method for a network cable anti-misinsertion locking device, applied to the above-mentioned network cable anti-misinsertion locking device, includes the following steps: S1. Assign code: Select a code for device network port 20. The code includes the combination of the 4-position combination of the tooth hole and the cross-sectional shape combination of the 3-section code tooth. S2. Install the coding component: Install the toothed template corresponding to the code into the toothed hole 4 of the mouth end female seat 1, and install the coding tooth 3 of the same code onto the line end coding ring 2. S3. Register the wiring table: Establish the correspondence between cable number, port number and code value; S4. Insertion verification and locking: Align the wire end coding ring 2 with the port end female socket 1 and insert it. When the coding matches, the crystal head 18 passes through the stop 5 and is inserted into the device network port 20 to the locking position and is hooked by the locking shoulder spring 10 and locked. When the coding does not match, the crystal head 18 is blocked outside the port edge of the device network port 20. S5. Unlocking, pulling out and reinserting: After releasing the lock shoulder spring 10 through the lever port 11 using the unlocking tool 12, pull it out. When reinserting, only the original port with the same code is allowed to be inserted and locked again.

[0060] Compared with the prior art, the present invention has the following beneficial effects: 1. Physical error prevention and one-to-one correspondence: The coding must be correct before it can be inserted. The coding teeth of misshapen or misaligned cables are blocked by the tooth hole-shaped template or solid surface and stop at 13mm (5mm from the edge of the network port); bare wires and cables with missing teeth are blocked by the barrier at 16mm (2mm from the edge of the network port and 10mm from the contact point), which makes it physically impossible for them to be energized. 2. Prevents accidental removal: After insertion, the locking shoulder spring 10 hooks the rear shoulder of the crystal head 18. The self-locking geometry causes the pulling force to generate a hooking torque, and it cannot be pulled out except through the pull tab 11 using a special unlocking tool 12; when reinserting after removal, if the code does not match, it will be rejected, and the cable can only be reinserted into the original port. 3. No need for re-crimping, universal compatibility: The wire end coding ring 2 is directly sleeved on the existing standard RJ45 crystal head 18, and the port end female connector 1 is fixed to the outside of the standard equipment network port 20. It is compatible with existing network cables and equipment, without the need for wire cutting and re-crimping, interface modification, or change of electrical connection. 4. Reconfigurable coding: Both the coding tooth 3 and the tooth hole 4 templates can be disassembled and replaced with coding configuration pliers. When the wiring relationship changes, only the coding at both ends needs to be replaced in pairs and the wiring table needs to be updated. 5. Dual protection: The mechanical coding and the optional NFC electronic verification are independent of each other, forming a double insurance of "mechanical error prevention + electronic verification"; the gate stop 5 is independent of the coding gate, and even if the coding ring slips, the gate stop can still prevent insertion.

[0061] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A network cable anti-misinsertion locking device, characterized in that, Includes line end encoding ring (2) and port end female socket (1); The wire end coding ring (2) is detachably sleeved on the crystal head (18) of the network cable (19). The wire end coding ring (2) is provided with at least two coding teeth (3) extending in the insertion direction. The distance between the front end of the coding teeth (3) and the front end of the crystal head (18) in the insertion direction is the first distance. The port end female (1) covers and is fixed to the outside of the equipment network port (20). The front end face of the port end female (1) has a central channel for the crystal head (18) to be inserted, and a tooth hole (4) corresponding to each coding tooth (3). Each tooth hole (4) is provided with a trigger (7). The end socket (1) is also provided with a gate-type stop (5) and a latch (6). The stop (5) is located in the central channel, and the distance between the stop (5) and the front end face of the end socket (1) is the second distance. The stop (5) can slide into the receiving groove of the central channel wall in a direction perpendicular to the insertion direction. The latch (6) is linked with all the triggers (7) through the linkage mechanism (8). The latch (6) disengages from the stop (5) only when all the triggers (7) are pressed down at the same time. The distance from the front end face of the port female connector (1) to the edge of the device network port (20) is the third distance. The first distance is less than the second distance, and the second distance is less than the third distance. The socket (1) is also provided with a locking shoulder spring (10). The locking shoulder spring (10) is used to hook the back shoulder of the crystal head (18) when the crystal head (18) is inserted into the position, so that the crystal head (18) cannot be pulled out directly. The socket (1) is also provided with a paddle hole (11) for the unlocking tool (12) to be inserted to release the locking shoulder spring (10).

2. The network cable anti-misinsertion locking device according to claim 1, characterized in that, There are two coding teeth (3). The two coding teeth (3) are located at the two o'clock and eight o'clock directions of the circumference of the crystal head (18) insertion channel, respectively, and are arranged diagonally. There are 5 available positions in the circumference of the crystal head (18) insertion channel, located at the two o'clock, four o'clock, six o'clock, eight o'clock and ten o'clock directions respectively. Any two positions can be selected and combined with two cross-sectional shapes to form a code. The positions of the coding teeth (3) on the line end coding ring (2) correspond one-to-one with the positions of the tooth holes (4) on the mouth end female seat (1).

3. The network cable anti-misinsertion locking device according to claim 2, characterized in that, The cross-sectional shape of the coding tooth (3) is selected from one of the following: square, circle, equilateral triangle, trapezoid. The enveloping circle diameters of the four cross-sections are the same and they do not nest with each other. The opening of the tooth hole (4) is a template with the same shape as the corresponding coding tooth (3) cross-section. The tooth hole (4) is a blind hole with a hole depth greater than the depth of the front end of the coding tooth (3) entering the tooth hole (4) when the coding tooth (3) is inserted into place.

4. The network cable anti-misinsertion locking device according to claim 1, characterized in that, The gate (5) is a gate plate, and the receiving groove is located at the bottom of the central channel. The side wall of the mouth end female seat 1 is provided with a hidden groove, and a latch (6) is provided in the hidden groove. A reset spring (9) is provided between the gate (5) and the mouth end female seat (1). The latch (6) is a transverse sliding latch, which is slidably placed in the hidden groove of the side wall of the mouth end female seat (1). The trigger (7) is a side pressure block provided on the side wall of the tooth hole (4). When the coding tooth (3) enters the tooth hole (4) by 2.0mm, the trigger (7) is pressed. At this time, the front end of the crystal head (18) is 15mm away from the front end face of the mouth end female seat (1), which is less than the position of the gate (5) 16mm away from the front end face of the mouth end female seat (1).

5. The network cable anti-misinsertion locking device according to claim 1, characterized in that, The top surface of the central channel is provided with a spring slot, and the entrance of the central channel is provided with an entrance slope (17), so that the self-locking spring of the crystal head (18) is flattened throughout the insertion process; the rear part of the port end female seat (1) extends out to cover the locking step of the equipment network port (20) with a tongue (16).

6. The network cable anti-misinsertion locking device according to claim 1, characterized in that, The shoulder spring (10) is located on the top surface of the central channel. The side of the hook of the shoulder spring (10) facing the exit direction is the blocking surface. When the crystal head (18) is inserted into place, the hook of the shoulder spring (10) hooks the back shoulder of the crystal head (18), and the pull-out force causes the hook to generate a tightening torque.

7. The network cable anti-misinsertion locking device according to claim 1, characterized in that, The end female seat (1) is fixed to the mesh opening of the equipment panel (21) by the upper edge claw (13) and the elastic support plate (14) located at its rear. The upper edge claw (13) hooks the upper edge of the opening, and the elastic support plate (14) supports the lower edge of the opening. An adhesive ring (15) is also provided between the end female seat (1) and the equipment panel (21). It also includes a depth gasket (30) for adapting the recess of the edge of the equipment mesh opening (20) relative to the equipment panel (21). A sealing ring is also provided between the end female seat (1) and the equipment panel (21).

8. A network cable anti-misinsertion locking device according to claim 1, characterized in that, The wire end coding ring (2) is a heat shrink ring, and the inner wall of the wire end coding ring (2) is provided with hot melt adhesive; the coding teeth (3) are snapped into the wire end coding ring (2), and can be disassembled and replaced with coding configuration pliers; the surface of the wire end coding ring (2) and the mouth end female seat (1) is also provided with coding nameplate (23).

9. A network cable anti-misinsertion locking device according to claim 1, characterized in that, It also includes an electronic verification module, which includes an NFC tag located in the line end coding ring (2), a reader located in the port end socket (1), and an indicator device located on the port end socket (1). When the identifier read by the reader matches the preset authorization information, the indicator device outputs a first indication; when they do not match or there is no identifier, it outputs a second indication. The port end socket (1) is also provided with an electromagnetic locking pin electrically connected to the reader. Only when the identity verification is passed can the electromagnetic locking pin retract and the latch (6) be released from the barrier (5).

10. A wiring method for a network cable anti-misinsertion locking device, applied to the network cable anti-misinsertion locking device according to any one of claims 1 to 9, characterized in that, Includes the following steps: S1. Assign code: Select a code for the device network port (20). The code includes the combination of the tooth hole (4) station position and the combination of the cross-sectional shape of the code tooth (3); S2. Install the coding component: Install the toothed template corresponding to the code into the toothed hole (4) of the mouth end female seat (1), and install the coding tooth (3) of the same code onto the line end coding ring (2); S3. Register wiring table: Establish the correspondence between cable number, port number and code value; S4. Insertion verification and locking: Align the wire end coding ring (2) with the port end female socket (1) and insert it. When the coding matches, the crystal head (18) passes through the stop (5) and is inserted into the equipment network port (20) to the locking position and is hooked by the locking shoulder spring (10) and locked. When the coding does not match, the crystal head (18) is blocked outside the edge of the equipment network port (20). S5. Unlocking, pulling out and re-inserting: After releasing the lock shoulder spring (10) through the lever port (11) with the unlocking tool (12), pull it out. When re-inserting, only the original port with the same code is allowed to be inserted and locked again.

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