168results about "Cable junctions" patented technology

A submarine connection box for connecting a system of submarine power cables, each including at least one submarine power cable core, the submarine connection box including: a casing, the casing having N first openings configured to receive a respective submarine power cable of a first set of N submarine power cables, N being an integer equal to or greater than 1, the casing having K second openings configured to receive a respective submarine power cable of a second set of K submarine power cables, K being an integer greater than 1, a termination box arranged inside the casing, the termination box having a housing including a first group of openings, and a second group of openings, each of the first group of openings being configured to receive a respective submarine power cable core of the first set of N submarine power cables, and each of the second group of openings being configured to receive a respective submarine power cable core of the second set of K submarine power cables, and L sets of connectors arranged in the termination box, L being an integer equal to the number of electrical phases or poles of the system of submarine power cables, wherein for each of the L sets, the connectors are electrically interconnected with each other and configured to connect submarine power cable cores of corresponding electrical phases or poles of the first set of N submarine power cables and the second set of K submarine power cables.

This utility model relates to the field of electrical consumables technology, specifically an electrical sheath. It includes a sheath body, which is a tubular structure made of thermoplastic material. The sheath body has an internal cavity and comprises an inner tube and an outer tube. The inner and outer tubes are connected sideways, forming a cavity between them. This cavity is a glue storage cavity containing a paste-like adhesive. The inner tube has multiple slits; when not under pressure, the adhesive remains within the glue storage cavity; under pressure, the adhesive seeps out from the slits. This design offers advantages such as a more secure connection and ease of use.

The application discloses a fixing device for solving the difficulty in connecting a 10kV line cable and a bypass cable, and mutually clamped first clamping jaws and second clamping jaws, one end of the first clamping jaws and the second clamping jaws is connected with a clamping piece, the inside of the upper end clamping piece of the first clamping jaw is provided with a hanging head, and the inside of the lower end clamping piece of the second clamping jaw is provided with a cable bridging device. The device is provided with safety reduction safety risks. In the load transfer work of the 10kV line cable head in the station, after the device is used, the phase-to-phase short circuit risk is reduced, the safety of the operating personnel is effectively guaranteed, and the economic benefit of the company is effectively improved. Under normal circumstances, the 10kV line in the transformer substation needs to be powered off for primary and secondary equipment maintenance, testing, and comprehensive self-reconstruction, which causes a large number of households to be powered off and a long power-off time. After the device is used, the whole station power-off can be avoided, the power supply capacity is improved, and the labor intensity is reduced.

This utility model relates to the field of marine cables and discloses an airtight structure for marine communication cables, including a connector. Six grooves are formed on the outer surface of the connector at both ends. A slider is slidably connected inside each groove. Pull rings are fixedly connected to the outer surfaces of the six front sliders and the six rear sliders. Connecting cylinders are fixedly connected to the far-away surfaces of the two pull rings. Fixing rings are fixedly connected to the far-away surfaces of the two connecting cylinders. Conical compression rings are fixedly connected to the far-away surfaces and inner rings of the two fixing rings. The progressive compression of the conical compression rings fills the gap between the connector and the cable. The outer diameter of the front end matches the inner diameter of the connector, and the inner diameter of the rear end matches the inner diameter of the connector, forming a tight fit. The conical shape generates radial expansion force during axial movement, effectively enhancing the sealing contact pressure and significantly improving airtightness. Simultaneously, the conical shape can adaptively deform during cable vibration, maintaining a dynamic sealing effect.

A connection structure of a wire harness enables the wire harness to be severed in the event of a vehicle collision. End portions of electric wires are respectively provided with connection end portions in which conductors of the end portions have been subjected to fusing processing, the connection end portion has an extension portion and a protruding portion, the protruding portion is at least partially provided with a tapered portion, the connection end portions are integrally connected to each other by crimping the extension portions from the radial-direction outer side by the connecting member, and at the connection end portion, the crimping of an extension portion to press the tapered portion inserted in a concave portion causes the engagement force between the extension portion and the connecting member to become weaker than the engagement force between the extension portion and the connecting member when applying tension to the electric wires.

This utility model discloses a novel waterproof silicone gel box, including a base box and a lid. A connecting rib is integrally formed along one edge of both the base box and the lid, and the base box and lid open or close using the connecting rib as a fulcrum. Two outwardly protruding snap-fit ​​edges are integrally formed on the outer side of the base box away from the connecting rib. Two protruding plates are integrally formed on the outer side of the lid away from the connecting rib, and snap-fit ​​protrusions are integrally formed on the inner wall of the protruding plates. The lid is fitted onto the base box by the connecting rib, with the protruding plates attached to the surface of the snap-fit ​​protrusions, and the snap-fit ​​protrusions are positioned on the snap-fit ​​protrusions. This utility model has a reasonable structural design. When the lid is closed, the snap-fit ​​protrusions and snap-fit ​​protrusions provide positioning, improving installation convenience and the stability and reliability of the closing mechanism. Furthermore, the two snap-fit ​​protrusions working in conjunction with the two snap-fit ​​protrusions ensure no gaps at the connecting edges, improving the waterproof performance after connection and making it highly versatile.

This utility model relates to the field of cable branch box technology and discloses a support structure for a cable branch box, including a branch box mechanism, and further including: an installation mechanism, a dustproof mechanism, and a lighting mechanism. The inner side wall of the branch box mechanism is movably connected to the side of the dustproof mechanism, the side of the lighting mechanism is fixedly connected to the inner side wall of the branch box mechanism, and the side of the branch box mechanism is movably connected to the inner side wall of the installation mechanism. This utility model uses bolts to install the base in a suitable position. When installing the branch box mechanism, the installation block is inserted into the placement groove, and the return spring pushes the fixing pin to insert the fixing pin into the fixing hole to fix the fixing hole, thus realizing the installation and fixation of the branch box mechanism. When it is necessary to disassemble the branch box mechanism, the electromagnet is energized to generate magnetic force to attract the iron plate, thereby causing the connecting rod to drive the fixing pin into the second installation hole, and the installation block can be removed from the placement groove, which helps to improve work efficiency.

This utility model belongs to the field of junction boxes, specifically relating to a dedicated junction box for monitoring photovoltaic modules. It includes a box body and a cover, which are interlocked. A wire-fixing mechanism is provided on the box body. A base is fixedly connected to the bottom inner side of the box body, and a clamp is fixedly connected to the upper end of the base. A square rod is fixedly connected to the upper end of the clamp, and a clamping block is slidably sleeved on the outer side of the square rod. A pad is fixedly connected to the upper end of the clamping block. An adjusting rod is mounted on the upper middle part of the base via a bearing. This utility model, by providing two clamps inside the box body, and clamping blocks that extend and retract via springs on the clamps, and a linkage plate controlled by the adjusting rod between the two clamps, with a top pin on the linkage plate, allows for simultaneous fixing of two wire harnesses after the wire harness is inserted into the area between the clamp and the clamping block.

This application provides an explosion-proof and reignition-proof composite structure for cable joints. The aforementioned explosion-proof and reignition-proof composite structure for cable joints includes a tensile-resistant and weather-resistant membrane shell, a fire-retardant and heat-absorbing coating, and a flexible explosion-proof sealing assembly. The tensile-resistant and weather-resistant membrane shell has an explosion-proof sealing cavity. The fire-retardant and heat-absorbing coating covers the tensile-resistant and weather-resistant membrane shell. The flexible explosion-proof sealing assembly is disposed within the explosion-proof sealing cavity and connected to the tensile-resistant and weather-resistant membrane shell. The aforementioned explosion-proof and reignition-proof composite structure for cable joints has good fire-proof, explosion-proof, and reignition-proof effects.

The present application relates to the technical field of power system safety protection and fire fighting, in particular to an underground pipe gallery cable joint overheating warning device, and an automatic fire extinguishing device and system thereof. The underground pipe gallery cable joint overheating warning device comprises a shell, a heat-sensitive driving mechanism and a warning module. The shell is used for passing the cable and the cable joint is located in the shell. The heat-sensitive driving mechanism senses the temperature change of the cable joint through an SMA spring to produce deformation to drive the slider to slide relative to the support rod. The warning module uses the SMA spring as the core temperature sensing driving element, uses the temperature-induced phase change characteristics to generate mechanical driving force, triggers the indicator to pop up to the ground for warning. Therefore, the present application performs overheating warning for the internal part of the cable joint, does not need to rely on external power supply, and can resist harsh environment, thereby solving the problems of monitoring blind area of the cable joint caused by difficulty in monitoring the core temperature of the cable joint, and external power supply of the electronic monitoring device.

To achieve stable connection of a power cable.SOLUTION: A cable connection structure includes: a pair of power cables each having a conductor; a metallic sleeve surrounding a junction point connecting the conductors of the pair of power cables; and a metal strip crossing the sleeve. The sleeve and the conductor have an insertion hole opened up to at least a part of the conductor to cross the conductor from the outer periphery of the sleeve. The metal strip is inserted into the insertion hole from the sleeve up to the conductor to electrically connect the sleeve with the conductor.SELECTED DRAWING: Figure 2

The utility model relates to cable connection technical field discloses a joint protection device of overhead insulated cable, including power connection, the outside of power connection is connected with the protection ring of sliding, the inside and outside fixed connection of power connection has a variety of protection mechanism, the variety of protection mechanism includes two insulation sleeves, the inner wall fixed connection of insulation sleeve has the sealing washer, the inside both sides fixed connection of power connection has two connecting pipes, one of connecting pipe's outside fixed connection has electric control valve, another connecting pipe's inside fixed connection has the explosion -proof membrane, in the utility model, the protection ring of power connection's outside carries out the protection to power connection to carry out the protection to the inside through different protection mode, multilevel, complementary protection mode, has strengthened the security and stability among routine use, has promoted the overall reliability and service life of power connection.

The utility model provides a kind of air extraction waterproof structure of cable leakage terminal, it is related to communication equipment technical field, including main body shell, the outer surface of main body shell is equipped with first conical sealing sleeve, the outer surface of main body shell is equipped with cable leakage main body, the outer surface of main body shell is equipped with air extraction pipeline, the outer surface of main body shell is equipped with second conical sealing sleeve, the outer surface of main body shell is equipped with no grounding card installation area, the outer surface of no grounding card installation area is equipped with jumper wire.The utility model is equipped with first conical sealing sleeve and second conical sealing sleeve, combine epoxy sealant and sealing material, form multiple sealing structure, effectively prevent moisture infiltration, avoid the sealing failure problem caused by construction error due to traditional adhesive tape winding process, and the moisture in cavity is actively extracted by miniature vacuum pump and air extraction pipeline, cooperate check valve to prevent wet backflow, completely eliminate the risk of condensate water short circuit caused by moisture accumulation.

This utility model discloses a fireproof and explosion-proof box for high-voltage cable joints, comprising two boxes connected at one end by a hinge and at the other end by a locking mechanism. Multiple honeycomb panels and reinforcing plates are provided on both sides of each box, with adjacent honeycomb panels and reinforcing plates staggered and fixed. Elastic clamping mechanisms are provided on opposite side walls of the box. Through-holes are provided at both ends of each box, with two through-holes on the same side corresponding to each other. This utility model can evenly distribute the impact force generated by an explosion across the entire explosion-proof box shell, preventing excessive local stress from causing the shell to crack. This significantly improves the overall strength and stability of the explosion-proof box, effectively reducing the impact of explosions on cable joints and the surrounding environment. Furthermore, it can quickly send signals when abnormal pressure or temperature occurs, alerting maintenance personnel to take appropriate measures to prevent further escalation of the accident, thus improving the safety and reliability of the power system.

This invention relates to the field of cable clamp technology and discloses a cable clamp with anti-loosening features, comprising a lower housing and an upper housing. An extension tube is provided on one side of the lower housing, and the upper housing is installed on the upper surface of the lower housing. The lower housing and the extension tube are arranged in a T-shape, and the upper housing is adapted to the upper surface of the lower housing and the extension tube. Semi-circular slide rails are provided at both ends of the lower housing, and a semi-circular knob is rotatably connected to the inner wall of the semi-circular slide rail. A groove is formed on the upper surface of the upper housing, and a solder filling module is detachably connected inside the groove. A solder storage tube is detachably connected to the inner wall of the groove through a first slider on the outer surface. The inner wall of the solder storage tube is filled with liquid solder. A sealing film is adhered to the lower surface of the solder storage tube. A knob is threadedly connected to one end of the extension tube and one end of the upper housing. This device achieves double anti-loosening through the semi-circular knob and hot melt adhesive, and relies on silver contacts and wedge-shaped tightening to ensure stable contact and prevent pressure damage.

This invention provides a snap-fit ​​cable fixing hardware connection structure, belonging to the field of power fitting technology, including a first wire clamp and a second wire clamp arranged in pairs. One end of each wire clamp is fixed to a first and a second bushing via second and first connecting blocks, respectively, and the two bushings are rotatably mounted on an outer cylinder. This structure also includes a plug-in assembly, a locking and releasing assembly, and a synchronous unlocking assembly. The plug-in assembly is built into the two wire clamps; the locking and releasing assembly is located at the other end of the two wire clamps and is used to lock the plug-in assembly in place. The synchronous unlocking assembly is mounted on the outer cylinder. When the plug-in assembly is plugged in, it can simultaneously lock the first and second bushings; it can also control the plug-in assembly to disengage and simultaneously release the locking of the two bushings, achieving an integrated synchronous unlocking operation. This invention can release the plugging state and simultaneously release the first and second bushings by operating the synchronous unlocking assembly, significantly improving the efficiency and reliability of cable fixing hardware assembly and disassembly.

A shielding connection assembly, a cable assembly and a method for preparing a cable assembly. The shielding connection assembly includes: an conductive device having a first end connected to the first shielding layer and a second end connected to the second shielding layer; a first shielding internal device disposed on an inner side of the first shielding layer; a first shielding external device disposed on an outer side of the first end; a second shielding internal device disposed on an inner side of the second shielding layer; and a second shielding external device disposed on an outer side of the second end.

The application relates to the field of cable assembly auxiliary tools, in particular to the field of assembly auxiliary tools for power supply cables in application scenarios, and more particularly to a capsule type cable quick connection terminal, which comprises a cable inlet end shell, a cable outlet end shell and a terminal main body, the cable inlet end shell and the cable outlet end shell are butted to form a capsule type outer shell of the capsule type cable quick connection terminal; the terminal main body is contained in a cavity formed by the outer shell; the terminal main body comprises two or more terminal bottom plates, the terminal bottom plates are in strip shapes, the long edges of the terminal bottom plates are fixed on the same shaft, and the terminal bottom plates divide a cylindrical space with the shaft as the center shaft into a plurality of quick connection spaces. After the technical scheme is adopted, the quick butt connection / lead connection between a plurality of different inner core cables can be realized, the overall structure is good in waterproofness, and safety problems caused by joint winding do not occur.

The utility model discloses a cable joint of which the fixed length of cable can be changed, and its technical scheme points are as follows: a joint body and a nut screwed to one end of the joint body, an auxiliary sheet extending along the length direction of the joint body is arranged on the end face of the nut away from the joint body, a pair of threading holes are arranged on the auxiliary sheet, one end of a wire is threaded through the two threading holes in turn and wound around the cable, so that the cable and the auxiliary sheet are fixed together, and the problem of small application range and high use cost of the prior art is solved.

The utility model relates to cable joint protection and positioning technical field, specifically is a kind of cable joint positioning fixture with guide slot.The device adopts concrete shell, both sides are provided with sealing cover and sealing rubber ring are provided with positioner simultaneously, cable passes through sealing rubber ring and passes through positioner, prevent displacement caused by vibration or external force.Sealing cover adopts detachable design, it is convenient to install and maintain.The utility model has reasonable structure, easy installation, convenient maintenance, effectively improves the protection performance and positioning stability of cable joint point, and is applicable to electric power, communication and industrial automation etc.

The application relates to an electric sleeve plug-in self-locking connector and a mounting method thereof, and belongs to the technical field of electrical pipeline connection. A composite elastic transmission structure is formed by a supporting block, a sliding rod, a limiting block, a first spring, a second spring, a third spring, a first gasket and a second gasket, so that the sliding rod does not exhibit single-stage straight-in and straight-out movement under a single-spring structure in the plug-in compression stroke and the unlocking reset stroke, but exhibits a movement state of moving in one direction as a whole and simultaneously accompanied by micro reciprocating elastic displacement. Since the three springs are separated by two slidable gaskets and transmit force in series, and the inner diameters of the three springs are all greater than the outer diameter of the sliding rod, in the movement process of the sliding rod, the springs can be sequentially stressed, segmented deformed and kept with the radial micro displacement space relative to the sliding rod, so that fluctuating loads in the plug-in and unlocking processes are dispersed, absorbed and released step by step, and the plug-in smoothness, locking stability and reset reliability are improved.

A cable management device includes a housing including a first retention feature and a cable reel mounted to the housing and including a second retention feature. The second retention feature is movable between a closed position and an open position. A method for storing a cable in a cable management device includes moving the second retention feature from the closed position to the open position to increase a distance between the first retention feature and the second retention feature to open a corresponding space between the first retention feature and the second retention feature, winding the cable on the cable reel, and moving the second retention feature from the open position to the closed position to decrease the distance between the first retention feature and the second retention feature to decrease or close the corresponding space between the first retention feature and the second retention feature.

The utility model provides a leak cable junction box relates to the field of junction box, including the line box body, the fixed plate and the connecting plate of line box body's installation, the outer surface of fixed plate installs a plurality of fixed screws, the outer surface of connecting plate installs a plurality of connecting screws, the outer surface of fixed plate installs switch power supply. The utility model discloses through the cooperation and detection of internet of things intelligent temperature and humidity controller and sensor probe when the humidity in joint exceeds the set threshold value, starts the heater to pass the heat to the joint, improves the dew point and improves the evaporation rate of possible existing liquid water, which helps to prevent the condensation water drop produced by excessive humidity, avoids the generation of standing wave problem, extracts the air of high humidity through vacuum pump cooperation one-way normally closed electromagnetic valve, to guarantee the inside of leak cable reaches the environment of normal work, which helps to keep the dry environment inside leak cable, prevents the corrosion or short circuit of electrical components, improves the overall stability and security.

The utility model discloses a kind of explosion-proof isolation sealing box, including main sealing box and secondary sealing box, secondary sealing box is fixedly connected in main sealing box one side, T-shaped plug is inserted in the free end of secondary sealing box, the position of the inner part of secondary sealing box close to its open end is fixedly connected with positioning boss, inner cavity is set in the plug, and elastic positioning rod is arranged around the inner cavity along the central axis of plug, the free end of the elastic positioning rod passes through plug and is connected with positioning boss. In the utility model, the linkage cooperation between plug and secondary sealing box is through ball head rod, compression spring, positioning column and cone body, realize quick plug and fasten locking function, avoid the problem that sealing mortar penetrates in traditional thread connection and affects disassembly and sealing performance.

A cable joint including an electrode having an end portion and a middle portion. The end portion is thicker than the middle portion. The electrode may have a relaxed internal diameter that is slightly smaller than the outer diameter of a standardized connector to provide a tight or secure fit over the connector..

This utility model discloses a copper busbar installation structure for a cable branch box, belonging to the field of cable branch boxes. It includes a cable branch box body, with an installation plate slidably connected to the inner cavity of the body. Structural grooves are formed on one inner wall of the body and one side of the installation plate. Several lead screws are arranged within the inner cavity of the structural grooves, with corresponding lead screws fixedly connected by connecting rods. A sliding block is threaded onto the outer ring of each lead screw, and an L-shaped stop block is fixedly connected to one side of the outer surface of the sliding block. Through the coordinated use of these devices, multiple copper busbars can be simultaneously fixed, significantly improving installation efficiency. This avoids problems such as scratches on the copper busbar surface or deformation of bolt hole edges caused by improper manual operation in traditional bolt fixing methods, effectively protecting material integrity, improving the safety and reliability of electrical connections, simplifying the operation process, and reducing installation complexity.

The application discloses an outer wall cable sealing and puncturing clamp block and relates to the technical field of cable fixing devices.The outer wall cable sealing and puncturing clamp block comprises a first protective shell and a second protective shell, a puncturing mechanism, a first limiting block and a second limiting block.The first protective shell is provided with the second protective shell below the outer wall thereof.The puncturing mechanism is arranged inside the first protective shell and comprises a lead screw which is rotationally connected to the inner wall of the first protective shell and a first gear which is fixedly connected to the middle part of the outer wall of the lead screw.The outer wall cable sealing and puncturing clamp block has the puncturing mechanism, the staff can drive the multistage transmission structure of the lead screw, the first gear, the second gear and the rotating rod, the puncturing rod can be stably lifted, the spring between the puncturing rod and the rotating rod can buffer the puncturing force, the puncturing head can avoid damaging the cable conductor or the insulating layer, the limiting block can ensure that the puncturing rod rotates synchronously with the rotating rod, the puncturing deviation can be prevented to cause poor contact, and the electric connection reliability after the cable is punctured and the safety of the cable body can be effectively ensured.

The utility model provides a cable intermediate joint insulation protection device relates to cable intermediate joint insulation protection device technical field, include: cable body, the outside of cable body is equipped with protection mechanism, protection mechanism includes protection shell no.

The utility model belongs to cable joint field especially a kind of compact power collection line joint, it includes compact power collection line one, compact power collection line two and connecting mechanism;The connecting mechanism is arranged in the end of compact power collection line one and compact power collection line two;The connecting mechanism includes connector one, connector two, screw and clamping block, one end of compact power collection line one is fixedly installed with connector one, one end of compact power collection line two is fixedly installed with connector two, connector two is inserted with connector one, multiple clamping blocks are fixedly installed in connector one, multiple clamping blocks are all connected with connector two, one end of connector one and connector two is connected with same screw.The utility model is through the cooperation of each component, not only can achieve to the compact power collection line between quick assembly and disassembly, and more firm, improve the convenience and stability.