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74results about "Cable installations in tunnels" patented technology

Underground mine large-gradient small-turning TBM construction method

The invention discloses an underground mine large-gradient small-turning TBM construction method, and belongs to the technical field of underground mine roadway tunneling. The method aims at solving the problems that a traditional TBM is discontinuous in deslagging, low in safety and poor in adaptability under complex working conditions. Through the modular trailer design, the TBM equipment has the capability of rapidly switching the deslagging mode according to the working condition (a gate way or a large-gradient small-turning roadway); a continuous belt conveyor, buffer residue storage and segmented transfer combined residue discharging system is adopted, and non-interruption continuous transportation of residue soil is achieved; tBM tunneling is utilized to directly excavate and form various functional chambers required subsequently, and integrated conversion of procedures is achieved; and all pipelines and equipment are arranged in a limited roadway section in an intensive and layered manner, and supporting and material transportation space is reserved. The deep cooperation of tunneling, deslagging, supporting and material transportation is achieved, and the continuity, safety, efficiency and equipment adaptability of construction in complex mine roadways are remarkably improved.
Owner:JIANGXI TIANYI MINING CO LTD

Explosion-proof and anti-reignition composite structure applied to cable joint and preparation method thereof

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.
Owner:SHENZHEN BIAODIAN NEW MATERIALS CO LTD

Modular quick-mount AF line suspension column connecting structure

The utility model discloses a modularization quick -wearing AF line suspender connecting structure contains base, boom and insulator, and the boom is located between both, and the insulator one end has cable clamp for fixing AF line, the base has the connecting ring and guide column of anchor groove, and the boom has top cap, arc push block and the like spare, when installing, through guide column and L shape guide groove complete preliminary positioning, then use the jacking device to make arc push block card into anchor groove and realize firm fixation, and the insulator is connected with the boom through the positioning rod, the convenient connection of the clamping block, modularization design is convenient to independent replacement when partial component damage, has reduced maintenance cost, and the whole structure installs fast, stable and reliable, can effectively improve AF line suspender laying efficiency and use stability.
Owner:XIANGYANG ZHAOHENG ELECTRIC EQUIP CO LTD

Cable mounting bracket capable of adapting to different mounting environments

The utility model relates to the field of cable construction, and discloses a cable mounting bracket capable of adapting to different mounting environments, which comprises a fixed seat, a supporting assembly and a positioning assembly are mounted at the front part of the fixed seat, the supporting assembly comprises three groups of supporting shafts and three lifting grooves, the three lifting grooves are respectively arranged at the front part of the fixed seat, and the positioning assembly is arranged at the front part of the fixed seat. The three sets of supporting shafts are fixedly installed on the front portion of the fixing base, a shaft sleeve is movably installed outside a shaft body between the two supporting shafts in each set, a supporting plate is fixedly installed outside the shaft sleeve, a positioning hole is formed in the position, close to the rear end, of the top of the supporting plate, and an adjusting rod is movably installed in the position, penetrating through the fixing base, of the top of the supporting plate. Through the shaft sleeve and the clamping column, the occupied space in a cable trench can be reduced after installation, and meanwhile, a cable at the bottom end is convenient to take, place and place; and through the screw rod and the telescopic column, the outer side of the cable can be blocked, the cable is prevented from sliding and falling off, and the device is suitable for being installed at a bend in a cable trench.
Owner:WEIHAI ZHIHUI ELECTRIC POWER MATERIALS CO LTD

Multi-stable-state flexible supporting device suitable for tunnel GIL pipeline to resist large deformation

The invention discloses a multi-stable-state flexible supporting device suitable for large deformation resistance of a tunnel GIL pipeline. The multi-stable-state flexible supporting device comprises a horizontal supporting unit, a vertical supporting unit and a connecting unit. The horizontal supporting unit and the vertical supporting unit are each provided with a supporting device, each supporting device is composed of an upper-layer dislocation component, a lower-layer dislocation component and a middle dislocation component, the upper-layer dislocation component, the lower-layer dislocation component and the middle dislocation component are in meshed connection in a relative dislocation mode through a gear structure, and the middle dislocation component is arranged between the upper-layer dislocation component and the lower-layer dislocation component in a clamped mode. The connecting unit is matched with the GIL pipeline and fixed to the middle dislocation component of the horizontal supporting unit. Through the synergistic effect of double units, synchronous adaptation of horizontal and vertical bi-directional dislocation displacement is achieved, deformation energy is absorbed through friction damping generated by gear meshing dislocation, the displacement amplitude of the GIL pipeline is effectively reduced, dislocation damage is avoided, the structure is stable, installation is convenient and fast, and the requirement for large deformation resistance of the long-distance GIL pipeline is met.
Owner:GUANGZHOU UNIVERSITY

Wire rod protection device for intelligent monitoring of tunnel face in tunnel

The utility model belongs to the technical field of wire rod protection, and particularly relates to a wire rod protection device used for intelligent monitoring of a tunnel face in a tunnel, which comprises two semicircular steel pipes hinged to each other, a protection area used for protecting a wire harness is defined by the two semicircular steel pipes, and the wire harness is located between the two semicircular steel pipes. Bent parts are fixedly connected to the two ends of the semicircular steel pipes respectively, the two bent parts at the same ends of the two semicircular steel pipes define a bent section, and a wall surface fixing part is fixedly connected to one semicircular steel pipe; the wire arranging part is arranged between the two semicircular steel pipes; and one end of the clamping and fixing part is fixedly connected with one semicircular steel pipe, the other end of the clamping and fixing part is fixedly connected with the other semicircular steel pipe, and the clamping and fixing part is used for fixing the two semicircular steel pipes. According to the device, the wire harness is protected through the semicircular steel pipe, and the wire harness is prevented from being damaged in the construction operation process.
Owner:HUBEI JIAOTONG CONSTR GRP CO LTD

Arc-shaped bracket mounting equipment in cable tunnel

The utility model discloses an installation device for an arc-shaped support in a cable tunnel. The installation device comprises an installation device body located in the tunnel and an arc-shaped stand column connected with the installation device body. The mounting equipment body comprises a base frame and a hanging support rotating mechanism connected with the base frame; the hanging support rotating mechanism comprises a cross-shaped lifting assembly which comprises a lifting fixing frame connected with the base frame, a lifting moving frame matched with the lifting fixing frame and a cross-shaped sliding frame installed at the end of the lifting moving frame and in sliding fit with the base frame, and a lifting vertical lifting push rod with the output end connected with the lifting moving frame is arranged in the lifting fixing frame; the rotary opening assemblies are symmetrically arranged on the two sides of the cross-shaped lifting assembly. Compared with traditional lifting equipment, the arc-shaped support can be automatically installed, the installation efficiency is improved, the installation cost is reduced, narrow space is utilized, adverse factors are converted into favorable factors, the base frame has certain compression resistance and bending resistance due to the fact that the base frame is upwards ejected and downwards pressed, and the effects of balancing weight and stable lifting are achieved.
Owner:MEIAN NEW ENERGY (JIANGSU) CO LTD

Flexible supporting device for GIL product

The invention discloses a flexible supporting device for a GIL product, and the device comprises supporting cantilevers, the supporting cantilevers are grouped in pairs and are arranged at intervals, and a to-be-connected GIL product is arranged between the supporting cantilevers in a penetrating manner; the two combined dampers are fixedly arranged on the top sides of the supporting cantilevers in a one-to-one correspondence mode. The transition force transmission supporting piece is used for connecting the GIL product and the combined damper, and based on the combined damper, instantaneous energy caused by the vertical earthquake vibration acceleration to the GIL product can be absorbed, and forced displacement introduced by the vertical earthquake vibration acceleration to the GIL product is reduced. The force balance buffering assembly is arranged between the cantilever ends of the two sets of supporting cantilevers and conducts horizontal buffering control on the supporting cantilevers, and the force balance buffering assembly can absorb instantaneous energy caused by horizontal seismic vibration acceleration to the GIL product and reduce forced displacement introduced by transverse seismic vibration acceleration to the GIL product. The GIL connector is suitable for connection of GIL products in a complex environment, and the connection reliability is high.
Owner:CHINA NUCLEAR XINHUA HUANGLONG PUMPED STORAGE POWER GENERATION CO LTD +2

Cable rack pre-embedding and fixing system and method for power construction

The invention relates to the technical field of cable fixing, and discloses a cable rack pre-embedding fixing system and method for power construction, and the system comprises a mounting bracket, one end of the mounting bracket is provided with two cable rack plates, and a belt body is arranged between the two cable rack plates; a first roller shaft and a second roller shaft are further arranged between the two cable frame plates, the first roller shaft and the second roller shaft are sleeved with the two ends of the belt body respectively, a plurality of limiting mechanisms are arranged on the belt body, each limiting mechanism comprises a first limiting plate arranged on the belt body, and a second limiting plate arranged on the belt body is arranged on the belt body. A second limiting plate is further arranged on the belt body, a triangular block is arranged at one end of the first limiting plate, through cooperation of the first limiting plate and the second limiting plate, feeding of cables is facilitated, the cables can be fixed, a plurality of cables are sequentially placed on a cable rack plate and pushed, and the cable rack plate is convenient to use. In this way, a plurality of cables can be orderly arranged and installed on the cable rack plate, labor is saved, and the use effect is good.
Owner:王竟成

Electric power support

The utility model relates to the technical field of electric power supports, and discloses an electric power support which comprises a fixing plate, the inner side of the fixing plate is slidably connected with an installation strip, the front and rear ends of the left and right sides of the installation strip are slidably connected with fixing buckles, and the front and rear ends of the adjacent sides of the multiple fixing buckles are fixedly connected with springs. The middle portions of the adjacent sides of the multiple fixing buckles are fixedly connected with steel wires, the tail ends of the two steel wires are fixedly connected with pull rods, the top of the mounting strip is fixedly connected with a hanging pipe, the left side and the right side of the hanging pipe are fixedly connected with clamping anti-skid mechanisms, and the clamping anti-skid mechanisms are used for clamping and fixing a cable. According to the utility model, after the fixing plate is fixed in the tunnel, the pull rod is pulled to drive the fixing buckle to retract into the mounting strip through the steel wire, then the mounting strip is inserted into the fixing plate, when the mounting strip is completely inserted into the fixing plate, the spring pushes out the fixing buckle for fixing, and then the cable is hung in the hanging pipe for upside down.
Owner:BEIJING ZHONGKE ZHONGDIAN POWER ENG MANAGEMENT LTD

Bridge support arm for tunnels

The utility model relates to the technical field of bridge support arm, concretely to a tunnel bridge support arm, including mounting panel, through two bolt fixed mounting in the one side of mounting panel's stand and through two bolt fixed mounting in the one side of stand's support arm, the one side fixed connection of mounting panel has the fixed plate for fixing on the tunnel wall, the one side of mounting panel is equipped with a locating hole and multiple adjusting holes, the circle center of multiple adjusting holes and the circle center of locating hole line does not coincide, and the included angle of two adjacent lines is n, the one side of stand is equipped with a through -hole and a long hole, the top adjustable mounting of support arm has two limit plates. Advantages lie in: can be through the adjusting hole of long hole bolt corresponding insertion change, realizes the adjustment to stand inclination angle, and the bolt insertion adjusting hole will not slide after, therefore the stability after the fixation to stand is reliable, thereby ensured the stability of cable bridge support.
Owner:ZHENGZHOU CHANGTONG ELECTROMECHANICAL CO LTD

Goaf monitoring device for gob-side roadway

The utility model discloses a goaf monitoring device for a gob-side roadway, which belongs to the technical field of geological engineering monitoring equipment and comprises a monitor main body, a monitoring base station and a station distribution base arranged at the top of the gob-side roadway. The monitoring base station is arranged on the side, close to the goaf, of the station distribution base. The monitoring base station is provided with a goaf monitoring probe towards the inside of the goaf. A power connection cable is arranged between the monitoring base station and the monitor main body, and a wiring trough for guiding and accommodating the power connection cable is formed in the station distribution base. According to the gob-side roadway gob-side roadway monitoring device, gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob
Owner:GEOPHYSICAL & GEOCHEMICAL SURVEY INSTITUTE OF HUNAN PROVINCE

Tunnel cable support with high applicability

The utility model relates to cable support technical field, concretely relates to a tunnel cable support with high applicability, including base column, a plurality of uniformly distributed bearing grooves are seted up on base column, and the detachable bearing plate is arranged in bearing groove, the fastening block that can be connected to the bearing groove below bearing plate is slidably arranged on the bottom end face of bearing plate, the fixed plate is established on the bottom end face of bearing plate of fastening block side, and the drive screw hole is seted up on fixed plate and penetrates, the drive screw rod that rotates and connects with one end of fastening block is established in drive screw hole, the mounting plate that is corresponding with bearing groove is established on the outside end face of base column side, and the guide link is slidably arranged on mounting plate, and the connecting plate that is parallel with mounting plate is established at the bottom of guide link, and the locking plate that is located in bearing groove is established at one side of connecting plate. The utility model can increase the number of bearing plate on base column as needed to satisfy more cable support demand, and can adjust the installation position of bearing plate on base column.
Owner:JIANGSU LIHONGYUAN ELECTRIC POWER TECH CO LTD

A concealed type shield segment pre-buried threading structure and a threading method thereof

The application provides a hidden shield segment pre-buried threading structure and a threading method thereof. The pre-buried threading structure comprises a wire inlet pipe, two intermediate bend pipes, two special-shaped bend pipes and two U-shaped grooves. The wire inlet pipe is connected with the two intermediate bend pipes. The other end of the intermediate bend pipe is connected with one end of the special-shaped bend pipe. The other end of the special-shaped bend pipe is connected with the U-shaped groove. The U-shaped groove is located at the two ends of the shield segment, and the opening direction is outward, so that a communication pipeline is formed in the shield segment. The pre-buried sensor cable is introduced into the pipeline through the wire inlet pipe and the three-way pipe. The sensor cable is threaded from the shield segment by the pre-buried pipe. The wiring operation is arranged at the ring joint of the shield segment. Finally, the cable is taken out from the safe position at the bottom of the tunnel and introduced into the track box culvert to set up a collection station. After the next ring is assembled, the cable is fully closed, the cable is not exposed on the inner wall of the tunnel, the cable is not exposed on the inner wall of the tunnel during construction and operation, and the safety hazard is eliminated.
Owner:CHINA RAILWAY DESIGN GRP CO LTD

Tunnel wall cable rapid installation support

The utility model belongs to the technical field of cable supports, and particularly relates to a tunnel wall cable rapid installation support which comprises an installation frame. A quick release assembly is arranged on the side wall of the mounting frame; a cable guide assembly is arranged at the top of the mounting rack; the mounting rack is provided with a locking assembly through a cable guide assembly; the mounting rack is provided with an anti-falling assembly through a cable guide assembly; the quick release assembly comprises a fixing block, an expansion screw, a hook, a first fixing frame, a fixing pin, a first spring and a pulling plate. According to the step, the mounting frame is fixed to the tunnel wall through the quick disassembly assembly, the quick mounting structure of the mounting frame is formed, the function of quick disassembly and assembly of the mounting frame is achieved, the problem that when the mounting frame is damaged and replaced, the whole mounting frame needs to be disassembled from the wall is solved, the operation steps are simplified, the reusability of parts is improved, and the cost is reduced. And the step of repositioning and punching is reduced, and the adjustability of the device is improved.
Owner:SHANGHAI TUNNEL ENG QUALITY INSPECTION CO LTD

Electric power tunnel cable support

The invention relates to the technical field of cable supports, and discloses an electric power tunnel cable support, multiple groups of cable supports are arranged along the trend of a tunnel, the tunnel is formed by splicing a plurality of annular support plates, two sides of the inner wall of each annular support plate are provided with a plurality of embedded grooves, and the electric power tunnel cable support comprises two racks, a cross arm and an adjusting mechanism; opening and closing of the tail end of the supporting arm are controlled through the adjusting mechanism, and rapid sleeving connection or separation of the support and the arc-shaped screw rod can be achieved. Complex punching or welding operation does not need to be conducted on the tunnel wall, the efficiency of installation, adjustment and later maintenance of the support is greatly improved, and the support is particularly suitable for being operated in the tunnel environment with the limited space. The embedded groove in the original annular supporting plate of the tunnel is matched and fixed with the arc-shaped screw, the support does not need to be additionally provided with a large number of anchoring points, the integrity of the tunnel structure is kept, the installation position of the support can be flexibly adjusted in the trend of the tunnel, and the cable laying requirements of different sections are met.
Owner:SICHUAN KUNPENG ELECTRIC CO LTD

Cable heat dissipation system and control method thereof

The application relates to a cable heat dissipation system and a control method thereof. The system comprises a preparation mechanism for preparing cooling water, a control mechanism comprising a driving assembly and a flow control assembly, a first end of the driving assembly being connected with a first end of the preparation mechanism, a second end of the driving assembly being connected with a first end of the flow control assembly, a first end of a heat absorption mechanism being connected with a second end of the flow control assembly, and a second end of the heat absorption mechanism being connected with a second end of the preparation mechanism, wherein the preparation mechanism, the driving assembly, the flow control assembly and the heat absorption mechanism constitute a heat dissipation loop, and the driving assembly is used for driving the cooling water to flow in the heat dissipation loop in a preset direction. The system can improve the cable heat dissipation efficiency.
Owner:GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD

Combined clamping type tunnel bearing support hanger

The utility model discloses a combined clamping type tunnel bearing support hanger which comprises an installation base which is a U-shaped plate and is composed of a base bottom plate, a left base side plate and a right base side plate, and the end portions of the upper sides of the two base side plates are each provided with an L-shaped clamping groove; at least two hanging bracket mounting hole groups are formed in the base bottom plate; at least two U-shaped supporting hanging brackets are further included, one side ends of the supporting hanging brackets are inserted into the hanging bracket mounting hole sets, and the supporting hanging brackets are connected in an insertion manner without auxiliary connection in other forms such as traditional screws, bolts, nuts or welding, so that the mounting efficiency is higher, and meanwhile, the connection reliability is improved; in order to facilitate installation, the hanging bracket installation hole set comprises a rectangular hole and two rectangular strip-shaped holes, and the rectangular strip-shaped holes are located in the lower side of the rectangular hole and distributed in a bilateral symmetry mode relative to the base bottom plate. And meanwhile, four U-shaped clamping grooves are formed in one side of the supporting hanging bracket so that the supporting hanging bracket can be conveniently connected with a mounting base, the connecting reliability is improved, and meanwhile mounting is more efficient.
Owner:YUNNAN DERIS TECH CO LTD

Cable protection device for preventing rock burst in coal mine

The utility model relates to the technical field of cable protection devices, in particular to a cable protection device for preventing impact ground pressure in a coal mine, which comprises a fixed base, an anchor hole is arranged at the top of the fixed base, a sliding rail is vertically arranged on one side of the fixed base, a sliding seat is connected onto the sliding rail in a sliding manner, and the sliding seat is connected with a cable. A damping spring and a damper are connected between the sliding seat and the bottom of the fixed base, a mounting plate is fixedly connected to one side of the sliding seat, a hook is fixedly connected to the mounting plate, a limiting plate is horizontally connected to an opening of the hook in an inserted mode, and the limiting plate and the hook are fixedly connected through a bolt; rubber pads are arranged on the inner sides of the limiting plates and the hooks; the sliding seat slides along the sliding rail and is matched with the damping spring and the damper to absorb longitudinal impact energy, so that the impact force borne by the cable is remarkably reduced, and the cable is prevented from falling off or throwing due to instant impact.
Owner:SHENYANG COKING COAL CO LTD HONGYANG THIRD MINE

Spacing and tension self-adaptive cable well pay-off adjusting frame

The invention discloses a distance and tension self-adaptive cable well pay-off adjusting frame, and relates to the technical field of cable well pay-off. The problems that when multiple cables are laid in the same well, cable spacing is prone to being out of control, the cables are wound mutually, and tension sudden change is difficult to adjust in a self-adaptive mode are solved. The device comprises a pay-off rack, wherein a first supporting seat, a second supporting seat and a third supporting seat are fixed on the surface of the pay-off rack; a plurality of groups of first sliding seats are arranged on the first supporting seat in a sliding manner, and clamping blocks with rotating wheels are mounted on the first sliding seats in a sliding manner; a plurality of second sliding seats are slidably arranged on the second supporting seat, tension buffering assemblies are arranged in the second sliding seats, and each second sliding seat comprises a pressing rod, an adjusting rod, a rotating shaft, a transmission gear set, a driving gear, a driving rod, a first driving rack, a second driving rack, a rotating block and a connecting rod. According to the invention, stable adjustment of the multi-cable pay-off time interval is realized, self-adaptive buffering and tensioning control are carried out on the cable tension in the dynamic pay-off process, cable winding, extrusion and sagging are effectively prevented, and the construction quality and efficiency are guaranteed.
Owner:ZHEJIANG ZHOUSHAN QIMING POWER CONSTR CO LTD

Underground power transmission line connection device allowing easier and more convenient connections

The present invention relates to an underground power transmission line connection device allowing easier and more convenient connections, the connection device comprising a support mechanism (10), a connector mechanism (80), first and second clamp mechanisms (90, 90'), an inclined roller (20), a vertical roller (30), a horizontal roller (40), a wire-pushing mechanism (50), a movement sensor (60), and a harmful animal-repelling device (70). The connection device allows convenient connection of underground power transmission lines (L) and safe laying-out of same, prevents electrical shorts from occurring by blocking access by harmful animals, and allows an underground power transmission line (L) inserted and pulled between the inclined roller (20), vertical roller (30), and horizontal roller (40) to be placed on the upper surface of a wire support part (12) conveniently and without difficulty.
Owner:URWON E&G CO LTD

Prefabricated assembly type secondary bottom plate and cable pipe-jacking tunnel working well applying same

The utility model relates to a prefabricated assembly type secondary bottom plate and a cable pipe-jacking tunnel working well using the prefabricated assembly type secondary bottom plate. The cable pipe-jacking tunnel working well comprises the prefabricated assembly type secondary bottom plate. The prefabricated assembly type secondary bottom plate comprises a plurality of prefabricated buttresses, a plurality of prefabricated main beams and a plurality of prefabricated panel beams which are divided into a plurality of groups, and each group of prefabricated buttresses are arranged in the row direction and arranged on an inner bottom plate of the cable pipe-jacking tunnel working well. The prefabricated main beams correspond to the prefabricated buttresses in a one-to-one mode, the prefabricated main beams extend in the row direction to be arranged on the prefabricated buttresses in the corresponding sets, the prefabricated panel beams extend in the column direction to be arranged on the prefabricated main beams, and each prefabricated panel beam comprises at least one short beam with the length smaller than the width of the cable working well in the column direction. And a sump capable of accommodating a drainage facility is formed outside the end part of the short beam. The utility model can meet the functional requirements, simplify the process flow, reduce the construction difficulty and improve the engineering quality.
Owner:国网陕西省电力有限公司 +3

Extra-high voltage long-distance cable tunnel ventilation system and cable tunnel

The utility model relates to the technical field of cable tunnel ventilation, and provides an extra-high voltage long-distance cable tunnel ventilation system and a cable tunnel, the extra-high voltage long-distance cable tunnel ventilation system comprises a plurality of ventilation subsystems which are sequentially arranged along the length direction of the tunnel, a first firewall is arranged between two adjacent ventilation subsystems, and a second firewall is arranged between two adjacent ventilation subsystems. Each ventilation subsystem comprises an air feeder, an exhaust fan and n fireproof sections sequentially arranged in the tunnel in the length direction of the tunnel, n is an integer larger than or equal to 3 and smaller than or equal to 5, and every two adjacent fireproof sections in each ventilation subsystem are communicated through a normally-open fireproof door. The air feeder and the exhaust fan are arranged at the two ends of the tunnel section where the ventilation subsystem is located in the length direction correspondingly and communicate with the tunnel section and the outside correspondingly. The number of fans used is reduced, the construction difficulty is reduced, the construction cost is saved, and the economical efficiency and the reliability of cable tunnel ventilation can be both considered on the whole.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED

Railway tunnel cable bridge mounting connecting device

The utility model belongs to cable bridge technical field especially relates to a railway tunnel cable bridge mounting connecting device, including main bridge, the main bridge top is equipped with connecting device, the main bridge middle part is equipped with wiring device, the main bridge front and back bottom is equipped with protection device, wiring device includes wiring structure and limit structure, limit structure installs in wiring structure top, wiring structure includes mounting panel, mounting panel top end inside is equipped with rotating shaft, rotating shaft outer surface is equipped with gyro wheel, and the gyro wheel between adjacent two is equipped with spring. This railway tunnel cable bridge mounting connecting device, utilize gyro wheel and press wheel to line cable and carry out limit, and utilize the rolling of gyro wheel and press wheel, effectively reduce the harm that line cable received abrasion, utilize the water seepage or humidity condensation water of guide vane to top and carry out the water conservancy, prevent the influence to inside, filter board effectively prevent dust particle to inside and cause the influence.
Owner:江苏悦圣亚电气有限公司

Coal mining equipment cable protection equipment for coal mining

The utility model relates to the technical field of cable protection, in particular to a coal mining equipment cable protection device for coal mining, which comprises a bending degree adjusting mechanism capable of locking the bending degree of a cable so as to avoid excessive bending. According to the utility model, by adjusting the included angle between the two supporting seats, the arc-shaped sliding strip and the arc-shaped sliding rail can be driven to slide relatively, the supporting seats are rotatably connected through the rotating column, and the positions of the bottom shell and the overturning shell can be driven to be adjusted while the positions of the supporting seats are changed; the locking column is inserted into the circular hole in the top shell and is in screwed connection with the positioning block, so that the arc-shaped sliding strip and the arc-shaped sliding rail do not slide relatively, the positions of the two same supporting seats are fixed, and the bending degree of the cable is fixed. Therefore, the service life of the cable is not shortened due to excessive bending when the cable is used in a mine.
Owner:DATONG COAL MINE GRP

System and method for tunneling and installing gil units

ActiveCN121055226BCable installations in tunnelsCable fittings in presence of gas/oilControl theoryGroup control
The present application relates to the technical field of power installation, in particular to a system and method for transporting and installing GIL units in a tunnel, which comprises a travelling crane group and a hoist, the travelling crane group comprises a high-level travelling crane and a low-level travelling crane connected rigidly, the horizontal height of the high-level travelling crane is higher than that of the low-level travelling crane; the hoist is arranged at the top side of the end of a horizontal tunnel, the horizontal tunnel satisfies the horizontal height of being at least higher than a section of a slope tunnel connected therewith; the steel wire rope of the hoist is connected to the main beam of the high-level travelling crane, the hooks of each travelling crane are connected to the same GIL unit, the travelling crane group controls the up-down displacement and left-right displacement of the GIL unit, and the hoist controls the front-back displacement of the travelling crane group and the GIL unit. The present application uses the hoist to lift the travelling crane group in the slope tunnel to transport and install the GIL unit, and solves the problem of slipping when the travelling crane travels on the inclined travelling guide rail, and the problem of transporting and installing the GIL unit in the slope tunnel with a large angle.
Owner:SAIJIE AIDI (JIANGSU) HIGH VOLTAGE ELECTRIC CO LTD