224results about "Cable installations in surface ducts" patented technology

A cable trough for installing cables alongside a railway line or other right of way is described. The cable trough is constructed using longitudinally oriented reinforcing fibers coated with polymeric resin that generally aligns the reinforcing fibers with the length of the cable trough. One or more connector clips may be used to secure respective portions of the cable trough to one another. The cable trough is provided with a cover that may be removably secured to an elongate channel to protect the cables housed within the cable trough. Elbows, corners, tees, and other connectors may be provided to run the cable trough in any desired direction. A method of installing cables in a cable trough is also described.

An apparatus, system, and method for deploying a tubular body across a gap. The tubular body is fixed to a surface on either side of the gap. The system includes a first connector housing fixed to the first surface and a second connector housing fixed to a second surface. An insertion end of the first connector housing is smaller than a receiving end of the second connector housing such that the insertion end of the first connector is insertable into the receiving end of the second connector housing. The tubular body passes continuously through the interior volume of the first connector housing and through the interior volume of the second connector housing.

The utility model discloses a pressure-resistant MPP electric power pipe, which comprises an inner pipeline and a buffer pressure-resistant outer pipe, the buffer pressure-resistant outer pipe is sleeved on the outer wall of the inner pipeline, the buffer pressure-resistant outer pipe comprises a connecting pipe and a protective pipe, the connecting pipe is slidably connected on the outer wall of the inner pipeline, a buffer cavity is formed between the protective pipe and the outer wall of the connecting pipe, and the protective pipe is sleeved on the buffer cavity. A plurality of evenly-distributed arc-shaped buffer plates and buffer pipes are fixedly connected into the buffer cavity, the arc-shaped buffer plates are arranged at equal intervals and fixedly connected with the outer wall of the connecting pipe, the outer surfaces of the arc-shaped ends of the arc-shaped buffer plates abut against the inner wall of the protective pipe, and the buffer pipes are arranged between every two adjacent arc-shaped buffer plates. The buffer pipes are fixedly connected with the two adjacent arc-shaped buffer plates and abut against the inner wall of the protection pipe. The arc-shaped buffer plates and the buffer pipes which are uniformly distributed are arranged in the buffer cavity, so that external pressure borne by the protective pipe can be effectively absorbed and dispersed, and deformation and fracture caused by the fact that the local part of the inner pipeline suffers from the external pressure are reduced.

The MPP power cable protection sleeve comprises a lower sleeve, an upper sleeve and a clamping block, one side of the top of the lower sleeve is connected with the upper sleeve through a rotating shaft, the clamping block is arranged at the bottom of one end, far away from the rotating shaft, of the upper sleeve, the bottom end of the clamping block is connected with a clamping part, one end, far away from the rotating shaft, of the lower sleeve is connected with a fixing block, and the fixing block is connected with the clamping part. A clamping groove is formed in the middle of the fixing block, the clamping block is connected into the clamping groove in an embedded mode, the inner wall of the upper sleeve and the inner wall of the lower sleeve are each connected with a buffering mechanism, and each buffering mechanism comprises a fixing sleeve, a springback column, a limiting top piece, a supporting spring and a damping ring. After the upper sleeve and the lower sleeve are covered, the clamping block is embedded into the clamping groove, and the top block moves towards the clamping block, so that the clamping part at the bottom end of the clamping block is clamped, and the power cable is protected; and the buffer mechanism is adopted to play a role in buffering so as to prevent the internal cable from being damaged by collision or impact of the protective sleeve in the installation process of the cable.

A preformed block is used for housing and routing electrical power cables, and comprises a central cavity. At least two adjacent faces of the block have an opening which connects to the central cavity. Electrical power cables can thus be routed within the block between those openings, from a side face (leading to a trench) to the top face (leading to an electrical installation on top). There is also provided an electric vehicle charging station using the precast block and a method of casting a block.

The utility model relates to the field of power cables, in particular to a plastic conduit convenient for positioning and splicing for a power cable, which comprises a main plastic conduit body used for sleeving and protecting the power cable; and the first connecting kit is fixed at one end of the main plastic conduit body and is used for splicing, and one end of the main plastic conduit body is movably butted with an auxiliary plastic conduit body. According to the power cable plastic guide pipe convenient to position and splice, through the arrangement of the main plastic guide pipe body, the first connecting sleeve piece, the auxiliary plastic guide pipe body, the second connecting sleeve piece, the butt joint block, the butt joint plate and the bolt, when splicing is needed, the main plastic guide pipe body and the second connecting sleeve piece are connected; the butt joint plates on the two sides of the second connecting sleeve piece at one end of the auxiliary plastic guide pipe body are inserted into the butt joint blocks of the first connecting sleeve piece at the other end of the main plastic guide pipe body to form positioning butt joint, then the bolts penetrate through the butt joint blocks and the butt joint plates, the main plastic guide pipe body and the auxiliary plastic guide pipe body are conveniently spliced, and compared with traditional hot melting, the splicing is faster.

A cable conduit for placement on a surface and housing a cable is provided herein. The conduit has a longitudinal axis defining a centerline thereof, and a cable receiving channel extending along the longitudinal axis to receive a cable. The catheter includes a base portion, a first ramp portion, and a second ramp portion. The base extends between the first longitudinal edge and the second longitudinal edge, and includes a first planar portion extending between the first longitudinal edge and the centerline, and a second planar portion extending between the second longitudinal edge and the centerline. The first ramp portion extends from the first longitudinal edge of the base portion toward the centerline such that a first angle is formed between the first portion of the base portion and the first ramp portion. The second ramp portion extends from a second longitudinal edge of the base portion toward the centerline such that a second angle is formed between the second portion of the base portion and the second ramp portion. And the inner edge of the first slope part and the inner edge of the second slope part are separated by a longitudinal opening. The longitudinal opening extends parallel to the center line and exposes the cable receiving channel. The first angle and the second angle are both less than 15 degrees, and the base is deformable about the centerline such that the catheter is reversible between the first configuration and the second configuration. In the first configuration, the first portion and the second portion of the base are coplanar, and the longitudinal opening has a first width. In the second configuration, the first ramp portion and the second ramp portion are coplanar, and the longitudinal opening has a second width. The second width is narrower than the first width.

To make it difficult for a lid to fall off even when force is applied to an inner side surface of an attachment of a cable trough.SOLUTION: An attachment 4 for a cable trough 1 is an attachment 4 that is attached to the cable trough 1 to increase a volume of the cable trough 1. The cable trough includes: a trough main body 2 having a bottom wall 21 and a plurality of side walls 22; and a lid 3 that closes an upper opening surface of the trough main body 2. The attachment 4 includes: a plurality of side wall plate members 41 that are attached to the plurality of side walls 22 of the trough main body 2 and extend in a height direction of the trough main body 2; and a top plate 42 that connects the plurality of side wall plate members 41 and faces a lower surface of the lid 3.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of cable protection tubes, in particular to a hexagonal cable protection tube with strong compression resistance, which comprises tube bodies, a screw sleeve and a connecting sleeve are respectively embedded at two ends of each tube body, a connecting tube head is integrally formed at one end of each connecting sleeve and is matched with the screw sleeve, and when the two tube bodies are connected end to end, the screw sleeve is connected with the connecting tube head. Notches are formed in the ends, connected with the pipe bodies in a screwed mode, of the screw sleeves and the connecting pipe heads, half studs are fixed in the notches, after the two pipe bodies are connected end to end, the half studs at the ends of the two pipe bodies are spliced into a stud, and the stud is sleeved with a nut in a screwed mode; the utility model has the beneficial effects that the screw sleeve and the connecting sleeve are respectively embedded at the two ends, and the end-to-end connection of the two pipe bodies is realized through threaded connection. The connecting mode is simple and easy to implement, and tight connection between the two pipe bodies can be ensured. In addition, the notch is formed in the end of the pipe body, the half stud is fixed, and then the nut is arranged in a sleeving mode for locking, so that the connecting structure is further reinforced, and potential safety hazards caused by loose connection are effectively avoided.

The utility model relates to a ground trunking with a moistureproof function, which comprises a trunking piece used for accommodating a cable, a sealing cover piece used for sealing the trunking and a connecting piece used for connecting the trunking piece and the sealing cover piece, the sealing cover piece is detachably buckled on the trunking piece from the upper part, the trunking piece is integrally formed, a U-shaped groove is formed in the center of the trunking piece, and the U-shaped groove is formed in the middle of the trunking piece. The upper groove edge of the U-shaped groove extends outwards to form an inwards-sunken inserting groove, the outer side of the inserting groove continues to extend and is bent reversely to extend downwards in a splayed mode to form supporting edges, and an inserting strip used for sealing and covering the supporting edges on the two sides is arranged below the U-shaped groove. At least one row of moisture permeable holes are formed in the lower portion of the U-shaped groove in the length direction of the groove piece. According to the ground wire duct with the moisture-proof function, the split type design is adopted, the wire duct piece can support a wire away from the ground, the water blocking and moisture removing functions are achieved, and the wire duct piece is matched with the sealing cover piece to conduct full shielding protection on a cable; and the sealing cover piece and the moisture-proof silica gel plug board assembly are convenient to disassemble, repair and maintain.

The invention discloses a mechanical cable conduit sealing device, and relates to the technical field of cable conduit sealing. The device comprises a sealing plug sleeve, plugging plates are arranged at the two ends of the sealing plug sleeve, a plurality of sets of flexible expansion holes are formed in the plugging plates, a plurality of sealing soft sleeves are arranged between the two sets of plugging plates, the sealing soft sleeves communicate with the flexible expansion holes, and a plurality of winding rings are rotationally installed in the sealing plug sleeve; the sealing soft sleeve is located between every two adjacent winding rings, winding rods are arranged in the winding rings, two sealing ropes are fixedly connected between the two winding rods on the outermost side, and the two sealing ropes are located above and below the sealing soft sleeve respectively. The driving shaft is rotated, the driving shaft drives the winding ring to rotate through the worm sleeve, the winding ring enables the sealing rope to be wound through the winding rod, then the sealing rope tightens the sealing soft sleeve, the sealing soft sleeve is tightly pressed on the cable to achieve sealing, and the cable sealing device can be suitable for cables of any specification and any shape.

An embedded positioning pipe fitting for electrical installation comprises a pipe fitting body, a plugging assembly is arranged at the end of the pipe fitting body and comprises an outer sleeve arranged outside the pipe fitting body in a sleeving mode and an inner sleeve matched with the inner wall of the pipe fitting body, an annular baffle coaxial with the outer sleeve is arranged at one end of the outer sleeve, and the outer diameter of the annular baffle is consistent with that of the outer sleeve; the inner diameter of the annular baffle is consistent with that of the inner sleeve, and an annular groove is formed in the side face, away from the pipe fitting body, of the annular baffle. A blocking circular plate is arranged at one end of the inner sleeve and located on the outer side of a pipe opening of the pipe fitting body; an annular notch is formed in the end, clamping the annular baffle, of the outer sleeve. The plugging circular plate can play a role in plugging the end opening of the pipe fitting body, mortar, concrete and the like are prevented from entering the pipe fitting body during embedding, the phenomenon that the pipe fitting body is plugged or corroded by materials such as the concrete and the like is reduced, the outer sleeve and the inner sleeve can prevent the pipe fitting body from being subjected to large external force during embedding, and the sealing effect is good. Therefore, the weak position of the port is damaged.

The invention discloses an integrated air exhaust and moisture removal device for a cable trench, and belongs to the technical field of air exhaust and moisture removal of cable trenches, the integrated air exhaust and moisture removal device comprises a traction sleeve, one end of the traction sleeve is connected with conveying equipment, and the other end of the traction sleeve extends into the cable trench for air exhaust and moisture removal. According to the invention, after the fixing frame and the traction sleeve are fed from the access hole of the cable trench, the traction sleeve is moved from the middle vacant position of the cable trench to the deep position of the cable trench through external conveying equipment, when the dehumidification mechanism rotates, water adhered to the surface of a peripheral cable can be scraped and dehumidified, and when interference occurs in the cable trench, the cable trench can be cleaned by the traction sleeve. The traction interference is reduced through partial radial movement of the dehumidification mechanism around the buffer mechanism, the stability of rotary dehumidification scraping and sweeping in a complex environment in a cable trench is improved, the scraping and sweeping roller can be kept to be attached to the surface of a cable, the interference generated by obstacles in the trench can be reduced, and the sweeping effect is kept.

The utility model discloses a cable support for electric power facility installation, which belongs to the technical field of cable supports and comprises a stable bottom plate, a fixed frame is fixedly mounted on the upper surface of the stable bottom plate, and a slidable lifting vertical plate is arranged in the fixed frame. And a positioning rod penetrating through the interior of the lifting vertical plate is inserted into the fixing frame, a stabilizing transverse frame is fixedly installed on the upper surface of the lifting vertical plate, a partition vertical plate is fixedly installed in the middle of the stabilizing transverse frame, and a clamping and positioning device is arranged in the stabilizing transverse frame. According to the cable support for electric power facility installation, a pulling cross rod and a pulling support are arranged to drive a pulling rod and a moving cross plate to push an arc-shaped clamping plate to move inwards so as to clamp and fix a cable, so that the cable has a better clamping and fixing effect, and the stability of lifting the cable can be better guaranteed; and the situation that the cable slips off is effectively avoided, the cable can be better installed, and the use convenience is effectively improved.

The utility model relates to electric power pipe technical field discloses a reinforced polypropylene electric power pipe, including the pipe body, the pipe body includes polypropylene inner layer, short glass fiber reinforced layer, polyester reinforcing layer and polypropylene outer layer from inside to outside in proper order, be equipped with the hydrophilic wet layer between polyester reinforcing layer and polypropylene outer layer, be equipped with a plurality of radial micro -holes in the polypropylene outer layer, the radial micro -hole is conical circular truncated cone hole shape, and the size is big outside small in; The radial micro -hole is uniformly distributed along the length extension direction of the pipe body, and is arranged in the 120 degree range of the top of the pipe body, the inner wall of radial micro -hole is equipped with hydrophobic coating. Solve the problem that the polyester reinforcing layer is prone to hydrolytic aging phenomenon when the electric power pipe is buried or exposed to humid environment in the prior art, leading to the problem of tensile strength decline, long-term reliability reduces.

The invention discloses an intelligent protection device for large-scale power plant equipment and a use method, and aims to solve the problems of poor flexibility, single function and lack of intelligent early warning of an existing protection device. The device comprises a base, a stand column, a baffle, a water level detection system and an audible and visual alarm, the base is provided with a splicing structure and can be flexibly combined, the stand column can be turned over, the angle of the stand column is locked through a pin rod, and the baffle is detachably fixed through magnetic attraction or clamping; the water level detection system can adjust sensitivity and remotely give an alarm when accumulated water exceeds a threshold value; the wire row seat is used for arranging cables and is waterproof and isolated. When the audible and visual alarm is damaged, on-site warning and remote signal transmission are triggered. The device can realize three deployments of foundation protection, reinforcement protection and ponding early warning, adapts to equipment operation and maintenance working conditions, improves protection suitability, safety and operation and maintenance efficiency, and is suitable for protection of key equipment of a large power plant.

An electric vehicle charging station parking block. In one aspect, the parking block includes a top surface and a bottom surface. The bottom surface is configured to be closer to the ground than the top surface when the parking block is in an installed state. The parking block has a cord channel defined within the parking block at a location between the top surface and the bottom surface. The cord channel is an air gap configured to receive a cord connecting an electric vehicle (EV) charger to an EV charging port configured to physically connect to the EV.

The utility model relates to the technical field of PVC (polyvinyl chloride) line pipes, in particular to a line pipe convenient to connect, which comprises at least two sequentially connected pipe fitting units and a plurality of locking pieces, each pipe fitting unit comprises a socket part and a spigot part connected with the socket part, the spigot parts of the adjacent pipe fitting units are inserted into the socket parts, and the locking pieces are connected with the socket parts. A guiding-in groove is formed in the position, located on the inner wall, of one end of the socket part, a protruding part is arranged on the outer wall of the spigot part, the protruding part is in sliding connection with the guiding-in groove of the adjacent pipe fitting unit, and a first inserting hole and a second inserting hole are formed in the socket part and the spigot part respectively. The first inserting hole is communicated with the second inserting hole of the adjacent pipe fitting unit, and the locking piece can be inserted into the first inserting hole and the second inserting hole which are in a communicated state. The first inserting hole and the second inserting hole can be quickly aligned through the effects of the guide-in groove and the protruding part, time for alignment is not needed during installation, glue does not need to be smeared for connection and fixation, and the construction efficiency is improved.

The invention relates to a locking system (1) for a charging plug part (4), which is arranged and / or can be arranged, in particular in a cavity (2) of a curb element (3), comprising a flap (5), a gear mechanism (6), and an actuator (7), wherein the flap (5) is coupled to the actuator (7) by means of the gear mechanism (6) such that the flap (5) can be positioned in a flap charging position (KL) and a flap closing position (KV) by means of the actuator (7). The invention further relates to an associated charging system (16) for electrical storage devices (17).The system complexity of the locking system (1) and the loading system (16) is reduced and / or their ease of use is increased by providing a stop (8), wherein the flap (5), the gear mechanism (6) and / or the actuator (7) can be blocked by positioning the flap (5) in the flap-lock position (KV) by means of the actuator (7) by means of the stop (8) and thus the flap (5) can be secured in its flap-lock position (KV), wherein the gear mechanism (6) has a lever element (9), wherein the lever element (9) can be positioned in a lever element locking position (HV), in a lever element unlocking position (HE) and in a lever element loading position (HL) by means of the actuator (7).

To provide a cable pit vapor cutoff device in an electric room capable of enhancing a water vapor cutoff protection effect for a cable pit.SOLUTION: A cable pit vapor cutoff device in an electric room comprises a structural assembly 100 including a structural member 101, a communication member 102 provided on one side of the structural member 101, and an intake member provided on one side of the communication member 102, and a backflow prevention assembly including a drainage member provided on one side of the communication member 102, a water discharge member provided inside the communication member 102, a cutoff member provided on one side of the drainage member, and a cleaning member provided on one side of the drainage member, wherein a part of vapor inside the communication member 102 is extractable by the intake member, and the drainage member, the water discharge member provided inside the communication member 102, the cutoff member provided on one side of the drainage member, and the cleaning member provided on one side of the drainage member are combined to perform processing.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of cable fittings, and discloses an anti-winding cable protection tube, which comprises a tube body, one end of the tube body is fixedly connected with a threaded insertion tube, the outer surface of the other end of the tube body is provided with an annular groove, and a threaded sleeve is clamped in the annular groove. A plurality of partition blocks distributed circumferentially are fixedly connected into the pipe body, a plurality of cable connecting spaces are formed through the partition blocks, so that a plurality of strands of cables can be arranged in the connecting spaces in a penetrating mode, the diameters of the inserting shafts are adjusted, the inserting shafts are arranged in a penetrating mode, and the connecting blocks drive the clamping blocks to slide. The multi-strand cable fixing device is simple in structure and convenient to operate, the multi-strand cable fixing work is achieved, meanwhile, through the arrangement of a plurality of anti-seismic pads, on the premise that the multi-strand cable is prevented from winding, the anti-seismic effect of a plurality of cables in use is improved, through mutual threaded connection of a plurality of pipe bodies, connection protection of cables of different lengths is achieved, operation is convenient, and the service life of penetrating of the multi-strand cable is prolonged.

The invention discloses a ground line protection device for urban rail transit signal construction, belongs to the technical field of cable protection equipment, and aims to solve the problems that assembly and use are inconvenient, corresponding angle adjustment cannot be performed according to the ground gradient after assembly, and protected wiring cannot be effectively limited. A mounting mechanism is arranged below the protective block, a limiting mechanism is arranged on the upper portion of the base, a rotary connecting mechanism is arranged at the bottom of the base, and a sliding mechanism is arranged on the protective block. According to the device, the protective module arranged on the base is matched with the mounting mechanism and the rotary connecting mechanism, so that when the device is assembled and used, the protective module can be conveniently assembled and connected, the assembling efficiency of the device in the using process is improved, and after assembling is completed, the protective module can be conveniently assembled and connected. And the two connected protection modules can rotate conveniently, so that corresponding angle adjustment can be conveniently carried out in the installation process according to the ground gradient of an installation site.

The utility model relates to the field of cable conduits, in particular to a cable conduit with a flame-retardant structure, which comprises a cable conduit main body. And the protection layer wraps the cable conduit main body and is used for protecting the cable conduit main body, and the protection layer comprises a heat-resistant layer. According to the cable conduit with the flame-retardant structure, through the arrangement of the cable conduit main body, the protection layer and the high-temperature-resistant layer, the flame retardance of the whole cable conduit is enhanced, the change of the outer side of a cable in a high-temperature environment is avoided, the heat-resistant layer on the outer layer of the cable conduit main body is glass fiber cloth, and glass fibers are used as raw materials, so that the cable conduit is environment-friendly. The cloth-shaped material manufactured through the textile technology has excellent mechanical property, heat resistance, corrosion resistance, insulativity and flame retardance, the outer flame-retardant layer of the heat-resistant layer is made of polyvinyl chloride and has a good flame-retardant effect, and the high-temperature-resistant layer in the inner pipe is matched with a polymer added with a flame retardant, so that the fireproof performance of the cable conduit is improved.

The utility model relates to the technical field of power cable conduits, in particular to a power cable conduit with a skeleton structure, which comprises a cable conduit main body, a cable is sleeved on the inner wall of the cable conduit main body, a protection assembly is chemically bonded on the inner wall of the cable conduit main body, and two ends of the outer wall of the cable conduit main body are mechanically connected with supporting mechanisms. And the cable tube penetrates through the cable tube main body to the inner wall of the protection assembly. Through mutual cooperation of internal parts of the protection assembly, the fireproof performance and the sealing performance of the cable tube main body are conveniently improved, the cable on the inner wall of the cable tube main body is protected, the cable can be normally used, the waterproof performance of the cable tube main body and the cable can be improved, and the service life of the cable tube is prolonged. Through mutual cooperation of internal parts of the supporting mechanism, the supporting performance of the cable tube main body is improved, the cable tube main body is not deformed under long-term extrusion, and mutual butt joint connection of multiple cable tube main bodies is facilitated.

The utility model provides a down-leading cable plugging device, and relates to the technical field of plugging, the down-leading cable plugging device comprises a plugging device housing, the interior of the plugging device housing is hollow, and the plugging device housing comprises two housing bodies which are detachably connected; a plurality of first grooves are formed in one end of each shell, a second groove is formed in the other end of each shell, the first grooves and the second grooves extend into the shells, and the second grooves communicate with the first grooves; the corresponding first grooves of the two shells are in butt joint to form a plurality of first through holes, the inner diameter of each first through hole is matched with the inner diameter of a single down-leading cable, the first through holes are used for the single down-leading cable to penetrate through, and sealing plugs are correspondingly and detachably arranged in the first through holes. The corresponding second grooves of the two shells are in butt joint to form a second through hole, the inner diameter of the second through hole is matched with a steel pipe arranged on the outer side of the down-leading cable in a sleeving mode, and the second through hole is used for the steel pipe to penetrate through. According to the down-leading cable plugging device, independent sealing of a plurality of down-leading cables can be realized.

The utility model relates to MPP electric power pipe technical field discloses a kind of composite MPP electric power pipes, including the inner tube body and outer tube body prepared by MPP material, the inner side wall of outer tube body is along circumference and is provided with multiple axial clamping slots, the inner tube body is correspondingly provided with multiple support frames detachably connected with the axial clamping slot, the support frame is in " V " shape, the tip of support frame is fixedly connected with the outer side wall of inner tube body, two opposite free ends of support frame are respectively provided with large head, the large head is one-to-one corresponding with axial clamping slot and is respectively clamped into corresponding axial clamping slot, and the large head and axial clamping slot are slidingly matched. Solve the problem that composite MPP pipe is easily deformed locally by inappropriate external force in the process of use in the prior art.

A duct bank for enclosing utility lines underground includes a first main duct formed from a nonmetallic material. The first main duct defines an interior volume therewithin and has a circular cross-sectional shape. The duct bank further includes a plurality of sub-ducts each formed from a nonmetallic material and being disposed in the interior volume of the first main duct. Each of the plurality of sub-ducts has a circular cross-sectional shape and is configured to carry one or more utility lines. The nonmetallic material of the first main duct includes one or more of: glass reinforced polyester (GRP), a hybrid fiber-reinforced epoxy-based laminate, or glass-reinforced vinyl ester. The nonmetallic material of each of the plurality of sub-ducts includes one or more of: GR, high-density polyethylene (HDPE), or polyvinyl chloride (PVC).