An electrical wiring device

Abstract

The utility model belongs to the technical field of electric power equipment, concretely relates to a kind of electric power wiring device;Including box, the box is by base and upper cover snap closure composition, is provided with a set of equidistance arrangement's plug-in mechanism in base, including support seat, top cover, turnover cover, plug-in female head, plug-in male head, cable fixed head and partition block, support seat is vertically fixed in base, the middle part of support seat left and right sides is connected partition block, top cover is centrally connected in the top of support seat, turnover cover is hinged in the front and rear ends of top cover, plug-in female head and plug-in male head are set between support seat and top cover, and one of them is fixed, and the other rotates and moves and is plugged in, cable fixed head is respectively connected in the outer end surface center of plug-in female head and plug-in male head, the cable hole that still is set in base is penetrated from front to back, plug-in female head and plug-in male head with cable hole position corresponding to each other.The utility model can avoid electric shock risk when wiring or replacing cable, improve safety performance.

Description

Technical Field

[0001] This utility model belongs to the field of power equipment technology, and specifically relates to a power wiring device. Background Technology

[0002] Power cables are cables used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, power plant lead-out lines, internal power supply in industrial and mining enterprises, and underwater power transmission lines across rivers and seas. When installing power cables, junction boxes are usually used to connect the cables at break points. Connecting cables through junction boxes can strengthen the connection between cables and, compared to connecting cables directly, can effectively protect the conductors inside the cables, thus avoiding leakage problems.

[0003] Chinese Patent CN117526197B discloses a junction box for power cables, belonging to the category of cable or wire installation. It includes a rectangular outer shell with a connector inside. The rectangular shell can be made of weather-resistant plastic or metal. The connector includes a mounting plate installed at the bottom of the rectangular shell, on which multiple insulating sleeves are mounted. A rectangular ceramic block is located at the upper end of each insulating sleeve, protecting the wires. This invention can stably fix the cable and effectively seal it, preventing leakage when moisture enters the cable connection. It also improves the insulation performance at the connection point, avoiding the junction box becoming electrified. While this invention provides stable fixing and effective sealing of the cable, like traditional wiring devices, the cable connections at both ends of the junction box are in a continuous state, posing a risk of electric shock when connecting or replacing cables. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the background art and provide a power wiring device. The device is equipped with a plug-in mechanism to fix the connected cables in the junction box, which can avoid the risk of electric shock when wiring or replacing cables and improve safety performance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a power wiring device, comprising a box body, wherein the box body is composed of a base and a top cover fastened together, and a set of equidistantly arranged plug-in mechanisms are provided inside the base, including a support base, a top cover, a flip cover, a female plug-in head, a male plug-in head, a cable fixing head, and a partition block. The support base is vertically fixed inside the base, and the partition block is connected to the middle of the left and right sides of the support base. The top cover is centrally connected to the top of the support base, and the flip cover is hinged to the front and rear ends of the top cover. The female plug-in head and the male plug-in head are arranged between the support base and the top cover, and one of them is fixed while the other rotates and moves to plug into it. The cable fixing head is respectively connected to the center of the outer end face of the female plug-in head and the male plug-in head. The base is also provided with a through cable hole, and the positions of the female plug-in head and the male plug-in head correspond to the positions of the cable hole.

[0006] Furthermore, the female connector comprises a female connector sleeve, metal springs distributed in a ring within the female connector sleeve, a conductive ring connected to the metal springs, and a conductive body connected between the conductive ring and the cable fixing head. The metal springs are distributed circumferentially along the axis of the female connector sleeve on its inner wall, and the ends of the metal springs are electrically connected to the conductive ring via wires. The conductive body is fixedly connected within the female connector sleeve. The male connector comprises a male connector sleeve and a connector mandrel. The connector mandrel is fixed within the male connector sleeve and located at its axis. The outer end face of the male connector mandrel is also provided with a connection hole for connecting the cable, and the outer side of the connection hole is tightly connected to the cable fixing head. Both the male connector sleeve and the female connector sleeve are made of insulating material, and when they are connected, the connector mandrel and the metal springs engage to achieve conductivity.

[0007] Furthermore, the cable fixing head consists of a metal ring and a fastening screw. The upper end of the metal ring has a through hole pointing to the center, and the fastening screw is threaded into the hole.

[0008] Furthermore, the outer wall of the female sleeve is provided with an external thread, and the inner wall of the male sleeve is provided with an internal thread. The female sleeve is fixedly connected in the support base, the male sleeve is slidably connected to the support base, and the female sleeve and the male sleeve are threadedly connected.

[0009] Furthermore, the female sleeve is fixedly connected inside the support base, and the male sleeve is slidably connected to the female sleeve. The outer wall of the male sleeve is also provided with external threads, and the corresponding inner wall of the support base is also provided with internal threads. The male sleeve is threadedly connected to the support base.

[0010] Furthermore, the metal spring is inclined in the horizontal direction inside the female head sleeve, with one end near the guide ring located at a lower horizontal position and the other end located at a higher horizontal position.

[0011] Furthermore, a clamping plate is provided at the end of the fastening screw. The clamping plate is arc-shaped and its opening direction points to the screwing direction of the fastening screw.

[0012] The beneficial effects of this utility model are: 1) This utility model is equipped with a plug-in mechanism. By plugging in the female plug and the male plug with threads, the two connected cables are connected and conductive. When connecting or replacing cables, the threaded connection can be released first to disconnect the female plug and the male plug, thereby disconnecting the two sections of cable, reducing the risk of electric shock. It is especially suitable for long-distance cable replacement, can improve power supply efficiency by working on the live line, and has a simple structure and is easy to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 for Figure 1 Cross-sectional view.

[0015] Figure 3 This is a partial structural diagram of the present invention.

[0016] Figure 4 for Figure 3 A three-dimensional structural diagram.

[0017] Figure 5 This is a partial schematic diagram of the insertion mechanism.

[0018] Figure 6 This is a cross-sectional view of the female connector.

[0019] Figure 7 This is a cross-sectional view of the male connector.

[0020] Figure 8 This is a schematic diagram showing the connection between the female and male connectors.

[0021] Figure 9 This is a structural diagram of a cable fixing head.

[0022] In the diagram: 1. Box body; 2. Base; 3. Top cover; 4. Plug-in mechanism; 5. Support base; 6. Top cover; 7. Flip cover; 8. Plug-in female connector; 9. Plug-in male connector; 10. Cable fixing head; 11. Divider block; 12. Cable hole; 13. Female connector sleeve; 14. Metal spring; 15. Conductive ring; 16. Conductor; 17. Male connector sleeve; 18. Plug-in spindle; 19. Connecting hole; 20. Metal ring; 21. Fastening screw; 22. Pressure plate. Detailed Implementation

[0023] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0024] Example: Figure 1-9As shown, the present invention provides an electrical wiring device comprising a housing 1, which is composed of a base 2 and a top cover 3 fastened together. The base 2 contains a set of equidistantly arranged plug-in mechanisms 4, including a support base 5, a top cover 6, a flip cover 7, a female plug 8, a male plug 9, a cable fixing head 10, and a partition block 11. The support base 5 is vertically fixed within the base 2. The partition block 11 is connected to the middle of the left and right sides of the support base 5. The top cover 6 is centrally connected to the top of the support base 5. The flip cover 7 is hinged to the front and rear ends of the top cover 6. The female plug 8 and the male plug 9 are positioned between the support base 5 and the top cover 6, with one fixed and the other rotating to plug into it. The cable fixing head 10 is connected to the center of the outer end face of the female plug 8 and the male plug 9, respectively. The base 2 also has a through-hole 12, with the female plug 8 and the male plug 9 corresponding to the cable hole 12.

[0025] refer to Figure 1-4 In this embodiment, the cable holes 12 on the front and rear sides of the base 2 are used to insert the cables connected at both ends. When connecting, a rubber sealing ring needs to be installed at the cable hole 12 to separate the inside and outside of the cable hole 12. When connecting the cables, they are connected to the female connector 8 and the male connector 9 respectively. During operation, the top cover 3 needs to be opened first to expose the base 2 and the plug-in mechanism 4. Then, the flip cover 7 is lifted to expose the cable fixing heads 10 at both ends. The cables are inserted and connected by loosening the cable fixing heads 10. After they are in place, the cable fixing heads 10 are tightened. At this time, the cables at both ends are fixedly connected by the plug-in mechanism 4. However, since the plug-in mechanism 4 will disconnect the female connector 8 and the male connector 9 by default, the connected cables need to be rotated to connect the male connector 9 and the female connector 8 to improve safety performance. In emergency use, the cables can also be replaced while powered on.

[0026] In this embodiment, the plug-in mechanism 4 is provided in multiple sets, and each set is separated by a partition block 11. The partition block 11 is made of ceramic resistive material, which can not only block the heat conduction between two adjacent plug-in mechanisms 4, but also prevent cross-current and cause danger. The partition block 11 is also a limit block of the plug-in mechanism 4 to prevent the plug-in mechanism 4 from shaking in the base 2 and causing the connecting cable to come off, making it safer to use.

[0027] The female connector 8 consists of a female connector sleeve 13, metal springs 14 arranged in a ring within the female connector sleeve 13, a conductive ring 15 connected to the metal springs 14, and a conductive body 16 connecting the conductive ring 15 and the cable fixing head 10. The metal springs 14 are distributed on the inner wall along the circumference of the female connector sleeve 13. The ends of the metal springs 14 are electrically connected to the conductive ring 15 via wires. The conductive body 16 is fixedly connected inside the female connector sleeve 13. The male connector 9 consists of a male connector sleeve 17 and a connector spindle 18. The connector spindle 18 is fixed inside the male connector sleeve 17 and located at its axis. The outer end face of the male connector spindle also has a connection hole 19 for connecting cables. The outer side of the connection hole 19 is tightly connected to the cable fixing head 10. Both the male connector sleeve 17 and the female connector sleeve 13 are made of insulating material, and when they are connected, the connector spindle 18 and the metal springs 14 are engaged to conduct electricity.

[0028] refer to Figure 5-8 In this embodiment, the cable is connected to the cable fixing head 10 through the conductor 16 and the connecting hole 19. The cable connector is then secured inside the cable fixing head 10 to connect with the metal spring 14 and the insertion mandrel 18. During installation, the female connector 8 is fixed, and the male connector 9 rotates to connect or disconnect with the female connector 8. During connection, the male connector sleeve 17 rotates closer to the female connector sleeve 13, continuing to move closer until the male connector sleeve 17 covers the female connector sleeve 13. At this time, both the insertion mandrel 18 and the metal spring 14 are a certain distance from the two sleeve openings, i.e., when the male connector sleeve 17 and the female connector sleeve 13 are first inserted... There is a gap between the plug-in spindle 18 and the metal spring 14. When moving, the plug-in spindle 18 connects with the pressing metal spring 14. Since the plug-in male head 9 is spirally forward, after connection, unless the plug-in male head 9 is rotated, the metal spring 14 will always press against the plug-in spindle 18 and will not push it out. This can increase the contact area between the two and prevent separation. Similarly, there are six metal springs 14, which are circumferentially distributed on the inner wall of the plug-in female head 8. Any one of them can be connected to the plug-in spindle 18 to connect the conductive ring 15 and the conductive body 16, and finally connected to the cable fixing head 10.

[0029] The cable fixing head 10 consists of a metal ring 20 and a fastening screw 21. The upper end of the metal ring 20 has a through hole pointing to the center, and the fastening screw 21 is threaded into the hole. The end of the fastening screw 21 is also provided with a clamping plate 22. The clamping plate 22 is arc-shaped, and its opening direction is pointing to the screwing direction of the fastening screw 21.

[0030] refer to Figure 9 In this embodiment, the clamping plate 22 is fixed to the lower end of the fastening screw 21, forming a relatively flat clamping opening between it and the metal ring 20. The power cable is generally a multi-strand metal wire, which is located at the clamping opening when connected to the metal ring 20, thereby increasing the contact area with the metal ring 20 and reducing the risk of poor connection.

[0031] The outer wall of the female sleeve 13 is provided with external threads, and the inner wall of the male sleeve 17 is provided with internal threads. The female sleeve 13 is fixedly connected in the support base 5, and the male sleeve 17 is slidably connected to the support base 5. The female sleeve 13 and the male sleeve 17 are threadedly connected.

[0032] In this embodiment, the female connector 8 is fixedly installed inside the support base 5, so that the inner wall of the male connector 9 is spirally connected to the female connector 8, and the outer wall is slidably connected to the support base 5. When wiring, the female connector 8 is fixed, and the male connector 9 is rotated to make it screw inward to connect and conduct with the female connector 8. The corresponding male connector 9 has a rotatable protrusion at its outer end, located outside the cable fixing head 10. The male connector 9 and the female connector 8 can be manually disconnected before and after wiring to improve safety performance.

[0033] The female sleeve 13 is fixedly connected inside the support base 5, and the male sleeve 17 is slidably connected to the female sleeve 13. The male sleeve 17 is also provided with external threads on its outer wall, and the corresponding support base 5 is also provided with internal threads on its inner wall. The male sleeve 17 is threadedly connected to the support base 5.

[0034] In this embodiment, the female connector 8 is fixed between the support base 5 and the top cover 6, so that the inner wall of the male connector 9 is slidably inserted into the female connector 8, and the outer wall is threadedly connected to the inner wall of the support base 5. The difference from the previous embodiment is that the fixed connection method of the male connector 9 has been changed. The threaded part is set on the outside of the male connector 9, which not only facilitates processing and production, but also reduces processing precision. At the same time, the connection is far away from the insertion part, which can effectively avoid the influence of high temperature on the connection.

[0035] The metal spring 14 is inclined in the horizontal direction inside the female head sleeve 13, with one end near the guide ring located at a low horizontal position and the other end located at a high horizontal position.

[0036] In this embodiment, the metal spring 14 gradually narrows from the outside to the inside. When the insertion mandrel 18 approaches the metal spring 14 for connection, the insertion mandrel 18 initially has some room to wobble. As it goes deeper, the contact state between the two gradually becomes a tight contact and finally a mutual compression, thereby increasing the contact area between the insertion mandrel 18 and the metal spring 14 and preventing overheating due to poor contact. The metal spring 14 is made of pure copper sheet for electrical connection, which increases conductivity. At the same time, the metal spring 14 is provided with multiple protrusions to increase the contact area with the insertion mandrel 18. The multiple protrusions can also provide a certain amount of expansion and contraction allowance during deformation. In order to increase the contact area between the metal spring 14 and the insertion mandrel 18, a set of spring plates can be added between the metal spring 14 and the inner wall of the insertion female head 8. When the metal spring 14 is not under force, it moves inward. When it is inserted, the spring plates store force. After the insertion contact, the metal spring 14 is reset under the drive of the spring plates, which can further increase the contact area with the insertion mandrel 18.

[0037] This utility model is equipped with a plug-in mechanism. By plugging in a female plug and a male plug with threads, two connected cables can be made conductive. When connecting or replacing cables, the threaded connection can be released first to disconnect the female plug and the male plug, thereby disconnecting the two sections of cable and reducing the risk of electric shock. It is especially suitable for replacing long-distance cables, can be used for live work to improve power supply efficiency, and has a simple structure and is easy to use.

[0038] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A power wiring device, characterized in that: The device includes a housing, which is composed of a base and a top cover that are fastened together. The base contains a set of equidistantly arranged plug-in mechanisms, including a support base, a top cover, a flip cover, female plugs, male plugs, cable fixing heads, and partition blocks. The support base is vertically fixed inside the base. Partition blocks are connected to the middle of the left and right sides of the support base. The top cover is centrally connected to the top of the support base. The flip cover is hinged to the front and rear ends of the top cover. The female and male plugs are positioned between the support base and the top cover, with one fixed and the other rotating to plug into it. Cable fixing heads are connected to the center of the outer end faces of the female and male plugs respectively. The base also has through-holes for cables, with the female and male plugs corresponding to the positions of these through-holes.

2. The power wiring device according to claim 1, characterized in that: The female connector consists of a female connector sleeve, metal springs distributed in a ring within the female connector sleeve, a conductive ring connected to the metal springs, and a conductive body connecting the conductive ring and the cable fixing head. The metal springs are distributed circumferentially along the axis of the female connector sleeve on its inner wall. The ends of the metal springs are electrically connected to the conductive ring via wires, and the conductive body is fixedly connected within the female connector sleeve. The male connector consists of a male connector sleeve and a connector mandrel. The connector mandrel is fixed within the male connector sleeve and located at its axis. The outer end face of the male connector mandrel also has a connection hole for connecting the cable, and the outer side of the connection hole is tightly connected to the cable fixing head. Both the male and female connector sleeves are made of insulating material, and when they are connected, the connector mandrel and the metal springs engage to achieve conductivity.

3. The power wiring device according to claim 1, characterized in that: The cable fixing head consists of a metal ring and a fastening screw. The upper end of the metal ring has a through hole pointing to the center, and the fastening screw is connected to the internal thread of the through hole.

4. A power wiring device according to claim 2, characterized in that: The outer wall of the female sleeve is provided with an external thread, and the inner wall of the male sleeve is provided with an internal thread. The female sleeve is fixedly connected in the support base, the male sleeve is slidably connected to the support base, and the female sleeve and the male sleeve are threadedly connected.

5. A power wiring device according to claim 2, characterized in that: The female sleeve is fixedly connected inside the support base, and the male sleeve is slidably connected to the female sleeve. The outer wall of the male sleeve is also provided with external threads, and the inner wall of the corresponding support base is also provided with internal threads. The male sleeve is threadedly connected to the support base.

6. A power wiring device according to claim 2, characterized in that: The metal spring is inclined in the horizontal direction inside the female head sleeve, with one end near the guide ring at a lower horizontal position and the other end at a higher horizontal position.

7. A power wiring device according to claim 3, characterized in that: The end of the fastening screw is also provided with a clamping plate, which is arc-shaped and its opening direction points to the screwing direction.

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