2022results about "Cable inlet sealing means" patented technology

The present disclosure relates to a bushing including an electrical conductor comprising a terminal at a first end of the bushing. The bushing also includes an electrically insulating condenser core arranged around the conductor and defining a central longitudinal through-hole through which the conductor extends. The bushing also includes a plurality of concentric field-grading layers arranged in the condenser core, comprising an inner field-grading layer and an outer field-grading layer. The bushing also includes an electrically conductive head electrically connected with the conductor passing there through, forming a gas-tight cap of the first end of the bushing outside of the condenser core, sealingly engaging a circumferential lateral outer surface of the condenser core and sealingly engaging the conductor. The bushing also includes an electrically conductive connection between the inner field-grading layer and the head.

A cable mount for a fluid conduit, comprising a lower main body (7) with a bore therethrough and a shaped opening formed thereinto, an upper body (6) for engagement relative to the main body and comprising a cable bore therethrough and a receiving opening oriented towards the shaped opening in the main body and a collet (8) with a collet bore defined by a segmented body and having at least one tapered radial surface to abut a surface of the receiving opening in the upper body and a shaped lower portion with at least one radial surface corresponding to the shaped opening in the main body to resist rotation of the collet as the upper body is tightened onto the lower body, wherein the collet bore has a predefined dimension when the upper body is fully engaged with the main body.

The present disclosure includes a split ring wire bundle seal sleeve and an assembly technology for pressurized electrical feedthroughs. A kit of parts is also described.

The invention relates to a cable branch box, and relates to the technical field of branch boxes, the cable branch box comprises a box body and a box door installed on the box body, and the vertical side surface of the box body is provided with a heat dissipation port; an upper protective cover with an upward opening is fixedly arranged on the inner edge of the opening of the heat dissipation opening of the box body, a lower protective cover with a downward opening is fixedly arranged on the outer edge of the opening of the heat dissipation opening of the box body, a barrier plate is fixedly arranged on the edge of the opening of the lower protective cover, and a plurality of barrier holes are formed in the barrier plate; according to the cable branch box, in the application process of the cable branch box, the possibility that external impurities enter the box body is reduced through the arrangement of the upper protective cover, the lower protective cover and the blocking holes; and high-temperature gas in the box body can be discharged to the outside through the heat dissipation openings and the blocking holes, so that circulation of gas inside and outside the box body is realized, and the heat dissipation performance of the box body is ensured.

A radio frequency (RF) feedthrough component having an impedance greater than 20 ohms is disclosed. The feedthrough includes a ceramic body having a flexible non-ferrous conductor adhered to its outer peripheral surface and to an inner peripheral surface of an aperture through the ceramic body. A non-ferrous conductive lead is disposed through the aperture and protrudes from at least one side thereof. A non-ferrous hermetic seal is formed between a portion of the non-ferrous conductive lead disposed in the aperture and the non-ferrous conductor adhered to the surface of the aperture. The RF feedthrough can be assembled in an opening of a conductive housing to form an electromagnetically shielded package for an electrical circuit.

The invention relates to the technical field of cable branch boxes, and discloses a cable branch box which comprises a box body and a box door, the box door is rotatably connected to the box body, a placement groove is formed in the box body, a through hole communicated with the placement groove is formed in the box body, and an elastic plate used for completely blocking the through hole is arranged on the through hole. According to the device, the through hole is blocked through the elastic plate, so that small animals are difficult to directly pass through the through hole to enter the placement groove; when a worker cuts the elastic plate, the cable enters the placement groove through the elastic plate, and the elastic plate abuts against the outer surface of the cable, so that the elastic plate can limit the distance between the cable and the through hole, thereby reducing the possibility that a small animal climbs into the placement groove along the cable, and further reducing the damage of the small animal to the electrical component.

A grommet apparatus for cable passage is provided at a component opening. It includes a radially circumferential connecting portion for connecting the grommet apparatus to an edge region of a component opening in an assembly direction and a cable passage portion.

The invention relates to the technical field of cable connectors, and discloses a cable connector applied to a new energy electrical cabinet, which comprises a first joint structure capable of being connected with a corrugated pipe, one side of the first joint structure is provided with a second joint structure capable of forming a sealing structure with an embedded pipe, and the first joint structure comprises a first joint main body; a first inner connecting pipe is arranged at one end of the first connector body, a pressing nut is connected to the first inner connecting pipe in an external thread mode, a limiting ring is arranged on the inner circumferential face of the pressing nut, and a hose inner cup is inserted into the first inner connecting pipe and comprises a bent part capable of being inserted into the first inner connecting pipe. One end of the bending part is connected with an outer edge located between the limiting ring and the first inner connecting pipe, the other end of the bending part is connected with a mounting pipe capable of being inserted into the corrugated pipe, the mounting pipe is located in the outer edge, and a first clamping ring located between the outer edge and the limiting ring is arranged in the pressing nut; the electric cabinet has the effect of improving the sealing connection effect between the cable and the electric cabinet.

The invention provides a waterproof cable intermediate joint structure, and relates to the technical field of cable intermediate joints, the waterproof cable intermediate joint structure comprises stress cones, the stress cones are installed at cable joints through compression devices, the parts, extending out of the stress cones, of the two cable joints are connected through a connecting sleeve, and the connecting sleeve and the two stress cones are sleeved with a protective copper shell. Epoxy resin is filled between the protection copper shell and the stress cone, one end of the protection copper shell contacted with the cable sheath is provided with a waterproof layer, and an intelligent monitoring system is integrated in the intermediate joint. The high waterproof performance is achieved through cooperation of epoxy resin filling and the waterproof layer, moisture is effectively blocked to prevent the interior of the connector from being damped and broken down, the power transmission safety is improved, the copper shell is protected to provide mechanical support, the external force impact resistance of the connector is enhanced, and the connector is suitable for the complex environment; potential faults can be warned in advance, the manual inspection cost is reduced, and the operation and maintenance efficiency is improved.

The utility model relates to the technical field of steam turbines, and particularly discloses a steam turbine instrument cable leading-out sealing structure which comprises a leading-out pipe arranged on a machine body, a cable is arranged in the leading-out pipe in a penetrating mode, the two ends of the leading-out pipe are provided with a front end sealing assembly and a tail end sealing assembly respectively, and the front end sealing assembly and the tail end sealing assembly can block a gap between the cable and the leading-out pipe. A sealing cavity is formed in the outlet pipe and located between the front end sealing assembly and the tail end sealing assembly. According to the utility model, the front end sealing assembly and the tail end sealing assembly are used for sealing the two ends of the part, located at the outlet pipe, of the cable to form internal and external dual sealing, the tightening sealing element is arranged in the front end sealing assembly located on the outer side and used for fixing the cable, and the elastic sealing element is used for performing primary sealing on the cable; second sealing is carried out through cooperation of the positioning sealing piece and the oil seal which are located on the inner side, and the sealing effect on cable gaps is greatly enhanced through double sealing; and a tightening sealing piece and the like are adopted, so that leakage caused by gaps due to displacement of the cable is avoided.

The utility model discloses a high-pressure-difference submarine cable cabin-penetrating sealing structure for testing a wet-type electric connector, which belongs to the technical field of submarine cable cabin-penetrating sealing and comprises a pressure vessel cabin wall, a cabin wall flange is arranged in the pressure vessel cabin wall, a screw is arranged on the surface of the cabin wall flange, a submarine cable body is arranged in the cabin wall flange, and the submarine cable body is connected with the cabin wall flange. V-group compression nuts are arranged at the two ends of the bulkhead flange, a V-group pressure pad is arranged in the bulkhead flange corresponding to the submarine cable body, and a V-group support ring is arranged on one side of the V-group pressure pad; according to the utility model, the V-group pressure pads, the V-group support rings, the V-shaped seals and the V-group pressure rings are tightly attached to the submarine cable, so that high-pressure-difference sealing is realized, the combination direction of the V-group seals can be determined according to the water pressure direction, and the high pressure difference is realized by adjusting the number of single V-shaped seals through different pressure differences; the problem of unsafe factors in the test of the cabin-penetrating sealing structure which cannot bear high pressure difference in the prior art is solved, and the test operation risk is reduced.

The utility model provides a submarine cable connection box. The submarine cable connection box provided by the utility model comprises a connection box body, reinforcing assemblies and a sealing assembly, the reinforcing assemblies are arranged on two opposite sides of the connection box body, and each reinforcing assembly comprises a fixed seat, a first connection sleeve and a second connection sleeve; the fixing seat is fixedly connected to one side of the connection box body, the first connecting sleeve is connected to the fixing seat, the fixing seat is provided with a first mounting hole, the first connecting sleeve is provided with a second mounting hole, the first mounting hole is communicated with the interior of the connection box body, and the first mounting hole is communicated with the second mounting hole. The first mounting hole and the second mounting hole form a channel for a cable core of a submarine cable to penetrate into the connection box body. The first connecting sleeve is sleeved with the second connecting sleeve, one end of the second connecting sleeve is connected to the fixing base, and a gap with the adjustable width is formed between the first connecting sleeve and the second connecting sleeve. The utility model provides a submarine cable connection box which can prevent continuous discharge of induced current and protect an optical unit.

A heat shrinkable connection component according to one embodiment of the present disclosure is used for the purpose of connecting an insulated wire that is obtained by covering a conductor with an insulating layer. This heat shrinkable connection component is provided with a heat shrinkable tube that has a melting point of 210° C. to 250° C. and a pair of sealing parts that are arranged on the inner circumferential surfaces of both end parts of the heat shrinkable tube; and the sealing material of the sealing parts has a shear viscosity of 1,000 Pa·s to 2,000 Pa·s at a shear rate of 100 / s at 250° C., and a shear viscosity of 7,000 Pa·s to 70,000 Pa·s at a shear rate of 0.01 / s at 215° C.

A rotary actuator includes a housing having a first end and a second end spaced from the first end along an axis. The housing defines a cavity extending circumferentially about the axis. An output shaft is arranged coaxially with the axis. The output shaft extends outwardly from the cavity through the first end. A drive system is disposed in the cavity and axially spaced from the first end. A gearbox is disposed in the cavity between the output shaft and the drive system. The gearbox is coupled to the drive system and the output shaft. A rotational controller is disposed in the cavity between the drive system and the second end. The rotational controller is configured to actuate the drive system to adjust an angular position of the output shaft.

The present invention relates to an elastomeric seal that embraces the electrical conductors that pass through the wellhead and comprises an upper cylindrical portion, a lower frustoconical portion, one to three through holes longitudinally crossing the seal and one to three longitudinal cuts that go from the periphery of said through holes to the seal periphery. In an alternative of the invention, the seal comprises more than one through holes, one longitudinal cut that goes from the periphery of one of the through holes to the periphery of the seal and one or two longitudinal cuts that go from the periphery of one of said through holes to the periphery another through hole.

A cable gland includes a gland nut defining a longitudinal axis. The gland nut includes an interior wall defining a gland nut opening. A bushing is disposed within the gland nut. The bushing defines a bushing opening configured to receive a cable therein. A compression limiting assembly includes a compression limiter moveably disposed at least partially within the gland nut. A spring is disposed between the compression limiter and the bushing. A body defines a body opening configured to receive at least a portion of the cable therein. The body is configured to couple to the gland nut. Upon coupling of the gland nut to the body, the gland nut moves along the longitudinal axis compressing the bushing between the gland nut and the compression limiting assembly and around the cable.

The utility model provides a moisture-proof cable joint auxiliary assembly, and the assembly is characterized in that two cable pressure heads are arranged and are respectively arranged at the positions, close to a cable joint, of two cables in a sleeving manner; the number of the compression nuts is two, and the compression nuts are installed on the cable pressing head so as to apply inward pressing force to the cable pressing head. The male joint sleeves a cable joint at the end part of one of the cables; the female joint sleeves a cable joint at the end part of the other cable and is in sealed connection with the male joint; the two pressing rings are arranged at the positions, close to the cable connectors, of the two cables respectively in a sleeving mode and connected with the male connector and the female connector in a one-to-one corresponding and inserted mode. The number of the cylindrical waterproof films is two. According to the invention, a plurality of fixing parts and a waterproof film are used to realize sealing of cable joints, and a moisture-proof purpose under an environmental condition with a large temperature difference is realized; and the overall installation is simple and fast, repeated use can be achieved, and the installation cost is reduced.

The invention relates to the technical field of submarine cable laying, and provides a submarine cable connecting device, which comprises a connector box internally provided with a fiber disc, the fiber disc is provided with a plurality of cable grooves, rollers are arranged along the extension direction of the cable grooves, and the rollers are tightly attached to a cable and are in rolling connection with the cable; and the monitoring assembly is arranged on the connector box and comprises a sensing module and a communication module, the sensing module is connected with the roller, and the sensing module acquires state information of the roller and sends the state information to the communication module. The cable detection assembly is arranged to detect the connection state of the cable in real time, and the cable passing assembly is arranged to fix the cable. When the cable slips, the sensing module can obtain the state information of the roller and send alarm information to the upper computer, so that maintenance personnel can maintain the cable in time conveniently. And the situation of communication interruption is avoided.

The invention discloses a misoperation-preventive locking intelligent control system and method for a high-voltage switch cabinet. The misoperation-preventive locking intelligent control system comprises a main control unit, a control unit and a control unit, wherein the main control unit is responsible for real-time logic judgment and control execution; the sensor module is used for monitoring the switch cabinet state. The executing mechanism is used for unlocking the locks in the authorized unlocking range; the man-machine interaction interface is used for a PC interface and is used for operation prompt, state display and manual intervention; the power supply module is used for providing a stable power supply required by system operation and supporting dual-power-supply switching and an uninterruptible power supply (UPS), intellectualization is achieved through the sensor module, and based on a sensor and logic control, anti-misoperation can be automatically judged and executed; through an execution mechanism and a human-computer interaction interface, remote monitoring is taken into account while the system safety is realized; meanwhile, expansibility is achieved through a self-checking function and a moisture-proof function, the system is integrated to a larger intelligent power grid system, linkage with other intelligent equipment is supported, and the system has the advantages of being high in misoperation-preventive locking detection capacity and high in humanization degree.

The invention discloses a full-dry type high-voltage cable terminal, and relates to the technical field of cable terminals, the full-dry type high-voltage cable terminal comprises a sleeve, a wiring assembly, a supporting assembly and a cable, the sleeve is provided with a first end and a second end which are opposite to each other, a sleeve-shaped insulator is inserted into the inner side of the sleeve, a gap is reserved between the insulator and the sleeve, a sleeve-shaped semi-conductor is embedded into the inner side of the insulator, and the sleeve-shaped semi-conductor is connected with the wiring assembly. The through hole of the insulator and the through hole of the semi-conductor jointly form a wire passing channel, a filling layer is further arranged in the sleeve, the filling layer is located between the insulator and the sleeve to fill the gap, and the filling layer further extends towards the first end of the sleeve; the wiring assembly is arranged at the first end of the sleeve; the supporting assembly is arranged at the second end of the sleeve; the cable sequentially penetrates through the supporting assembly and the wire passing channel, and the cable is electrically connected with the wiring assembly. The full-dry type high-voltage cable terminal is provided with the solid insulating layer, the sleeve does not need to be filled with liquid silicone oil, and installation is easy and convenient and is not limited to vertical installation.

The invention discloses a sealing joint and a cable installation method, and belongs to the technical field of petroleum drilling equipment, the sealing joint comprises a connecting joint part, an upper joint part and a lower joint part, and a third interval is defined by the inner wall of the connecting joint and the axial end faces of the upper joint part and the lower joint part; and the clamping sleeve assembly is assembled in the third section. When the clamping sleeve component and the clamping sleeve seat body in the third section are assembled, the first contact surface and the second contact surface clamp a steel wire layer of the cable so as to realize hanging and clamping of the cable, and the safety and the reliability are high.

The invention belongs to the technical field of cable connection, and particularly relates to a cable intermediate joint protection device applicable to extreme events, which comprises an upper shell, a lower shell, a secondary explosion-proof assembly and an arc extinguishing assembly, the upper shell and the lower shell are combined to form a main body shell structure, the secondary explosion-proof assembly and the arc extinguishing assembly are located in the main body shell structure, the secondary explosion-proof assembly is arranged in a central axis area of the main body shell structure, and the arc extinguishing assembly is located above the secondary explosion-proof assembly. Through the use of the secondary explosion-proof assembly, when deflagration occurs, quartz sand in a sealing rubber bag in the arc extinguishing assembly can be discharged to the outer side of the cable joint, so that the cable joint is not in contact with air, and the generation of explosion is hindered. The energy release hole upper cover sealing device plays a role in sealing the space and prevents liquid or sundries from entering the middle connector. The whole device achieves the effect of resisting extreme events.

A marine drive is for propelling a marine vessel in a body of water. The marine drive comprises a motor housing defining a motor cavity; a motor disposed in the motor cavity; a propulsor shaft extending from the motor housing, wherein the motor is configured to cause rotation of the propulsor shaft; a propulsor which is rotated by the propulsor shaft to create a thrust force in the body of water; and a vent conduit having a first end connected to the motor cavity and a second end which vents the motor cavity to atmosphere.

In an example, an anti-shrink back device is positionable at least partially around insulation of an electrical conductor at an end of the insulation adjacent to an uninsulated segment of the electrical conductor. The anti-shrink back device includes a band mechanically tightenable at least partially around the insulation at the end of the insulation adjacent to the uninsulated segment to secure or inhibit movement of the end of the insulation longitudinally relative to the electrical conductor.

The utility model discloses a high-pressure-resistance cable fireproof material blocking device, and belongs to the technical field of cable equipment. Comprising a top sealing cover and a bottom sealing cover, the top sealing cover and the bottom sealing cover are attached to each other, a threading hole for a cable to penetrate through is formed in the middle of the side, facing each other, of the top sealing cover and the bottom sealing cover, and a plurality of sealing washers are arranged on the inner rings of the side, facing each other, of the top sealing cover and the bottom sealing cover. A cable sleeve is inserted into an inlet of the threading hole; according to the utility model, the top sealing cover and the bottom sealing cover which are symmetrically arranged up and down are symmetrically sleeved on the surface of the cable and inserted into the hole groove of the partition plate between the cavities, so that the structural strength of the insertion end of the cable is increased, collapse caused by overweight of the cable is prevented, and the sealing effect is realized by matching with the sealing bayonet sockets in the top sealing cover and the bottom sealing cover.

The utility model relates to the technical field of cable connection, in particular to a cable with a clamping butt joint, which comprises a first cable, the right side of the first cable is provided with a first connector, the surface of the first connector is provided with a thread groove, and the surface of the first connector is fixedly sleeved with a fixing ring. According to the utility model, the second connector is inserted into the first connector, the second magnet is attracted under the action of the magnetic force of the first magnet, so that the second magnet is in contact with the first magnet, the second magnet is fixed in the clamping groove through the first magnet, and the first connector and the second connector are positioned through the clamping groove and the second magnet; the first connector and the second connector are connected and fixed, after connection is completed, the threaded sleeve is rotated to make transverse movement on the surface of the threaded groove, the telescopic sleeve is extruded through the threaded sleeve, and gas in the telescopic sleeve is injected into the closed air bag through the second connector.

A transit for passing at least one cable (11) and / or at least one pipe through an opening (22) in a partition (12), wherein the transit comprises a first frame (19), a second frame (20), wherein the second frame (20) is arranged with through apertures (24) and the first frame (19) is arranged with holes (25) for receiving threaded fastening screws (23), so that the first and second frames (19, 20) can be clamped on opposite sides of the partition (12) by means of the fastening screws. The transit (10) further comprises a partition opening liner (21) for engaging the first frame (19) and the second frame (20) and form a radially lined passage extending in an axial direction between the first frame (19) and the second frame (20). Disclosed is also the use of such a transit (10).

The utility model belongs to the technical field of switch cabinets, in particular to a cabinet body sealing structure of a high-low voltage switch cabinet, which comprises a high-low voltage switch cabinet body, a connecting frame and a rubber sealing frame, the connecting frame is fixedly connected onto the high-low voltage switch cabinet body, and the rubber sealing frame is slidably inserted onto the connecting frame. According to the cabinet body sealing structure of the high-low voltage switch cabinet, through the matching design of the connecting frame, the rubber sealing frame and the adjusting pin, the sealing effect on the cabinet door can be improved when the cabinet door is closed on the high-low voltage switch cabinet body, and the sealing effect can be improved when the rubber sealing frame is extruded and cannot be reset. When a gap of a cabinet door cannot be tightly filled with the rubber sealing frame, the protruding distance of the rubber sealing frame can be adjusted through the adjusting pin, so that tight filling and sealing use is achieved, through the design of the lead sealing sleeve, the sealing effect of the wire inlet hole can be improved, and it is ensured that the moisture-proof sealing effect of the high-low voltage switch cabinet body is good.

Device comprising at least a top-side hood (10) for receiving an electrical component, such as a terminal block, for attaching at least one electrical conductor, and a bottom-side base (14) which is provided with a bottom-side opening (16) for receiving another electrical component, such as an insulating candle, which can be electrically connected to the first electrical component, characterized in that the hood (10) and the base (14) are two separable components which, when assembled, form a cover (18) as a whole and which, by means of a height adjustment (20) with a locking device, assume such different positions relative to each other that differently designed electrical components in a predefinable mounting frame can be covered with only one cover (18).

The present application relates to the technical field of submarine cable fittings, and provided are a submarine cable joint box and a submarine cable system. Two submarine cables are connected by means of an intermediate connector. The submarine cable joint box comprises: sealing ends, a sealing cylinder and a heat shrink tube. The sealing cylinder is sleeved on the intermediate connector; the sealing ends are respectively sleeved on the submarine cables at the two ends of the intermediate connector; two ends of the sealing cylinder are respectively in sealed connection with the corresponding sealing ends. The two sealing ends, the sealing cylinder and the intermediate connector form an accommodation chamber, and the accommodation chamber is filled with a waterproof sealant. The heat shrink tube is sleeved on the sealing cylinder and the sealing ends, and two ends of the heat shrink tube are in heat shrink connection with the submarine cables at the two ends respectively. The present application uses the mode of combining the sealing ends and the heat shrink tube to perform double sealing, thus improving the sealing performance of the repair joint box in deepwater areas.