48results about How to "Easy installation and construction" patented technology

The utility model relates to the technical field of road slope geology monitoring, and discloses a road slope geology monitoring device, which is characterized in that a photovoltaic power generation panel and a monitoring camera are arranged at the upper part of a mounting rod column through an adjusting rotating seat, and the adjusting rotating seat can be rotationally adjusted under the meshing driving of a driving motor and a fixed tooth holder; the mounting base plate is fixedly connected with a slope soil layer under cooperation of a fixing bolt column and an anti-loosening connecting column, the orientation of the photovoltaic power generation panel can be flexibly adjusted through meshing driving of a driving motor and a fixing tooth holder, the photovoltaic power generation panel can rotate and be adjusted along with the illumination direction, and the illumination intensity of the slope soil layer is improved. A fixing bolt column is matched with the mounting base plate to be connected with a soil layer structure of a slope, a traditional concrete pouring structure can be replaced to mount and support the monitoring device, an anti-loosening connecting column is arranged in the middle of the mounting base plate, and a connecting shaft column is matched with a driving worm to unfold and drive an anti-loosening clamping jaw inserted into a soil layer; loosening of the mounting base plate can be effectively avoided through supporting and clamping connection of the anti-loosening clamping claws and the soil layer.

The utility model discloses a drainage structure applied to a planting roof. The drainage structure comprises a structural layer, a water circulation system arranged on the structural layer, brickworks piled on the two sides of the water circulation system, and drainage pipes embedded in the bottoms of the brickworks. The drainage pipes are communicated with the two sides of the masonry; planting soil is filled in the pits on the side surfaces of the masonry, and plants are planted on the surface of the planting soil. The brickworks are piled on the two sides of the water circulation system to form the drainage ditches, redundant rainwater in planting soil is drained into the drainage ditches through the drainage pipes and collected by the water circulation system, and a unified structure of planting and drainage is formed. The drainage structure is arranged at the bottom of the planting roof, the planting roof and the drainage structure are connected through the built decorative surface, and the planting roof has the advantages of being simple in structure, convenient to construct, capable of being shaped and prefabricated in advance, stable and reliable.

The invention discloses a pavement landslide collapse detection alarm device based on laser signals, which comprises a laser signal transmitting unit, a shading screen array and a laser signal receiving and alarm unit, and is characterized in that the shading screen array comprises a plurality of shading screens of which the centers are provided with light through holes; the plurality of shading screens are sequentially arranged on a monitored road surface, and the light through holes are oppositely aligned; when landslide collapse does not occur on a monitored road surface, a laser signal emitted by the laser signal emission unit sequentially passes through the light through holes of the shading screens and then is received by the laser signal receiving and alarming unit. When landslide collapse occurs on a monitored road surface, a laser signal transmitted by the laser signal transmitting unit is blocked by the shading screen so as to trigger the laser signal receiving and alarming unit to send out an alarming signal. The invention aims to provide a pavement landslide collapse detection technology which is simple and convenient in construction and installation, low in cost, high in detection rate and strong in anti-interference capability, and realizes real-time monitoring and real-time alarming.

This utility model discloses an auxiliary equipment for the transportation and installation of building pipelines, relating to the field of pipeline construction technology. It solves the problems of inconvenient transportation and installation of building pipelines in existing technologies. It includes at least two towing trolleys, each trolley comprising self-locking casters, two movable wheels, a pipeline placement groove, and fastening structures opposite each other on both sides of the groove. The fastening structures include support rods, screws, a top plate, and an arc-shaped clamping plate. The support rods are mounted on the trolley frames and have screw holes. The arc-shaped clamping plate has a receiving chamber with a through hole, the size of which is smaller than the size of the top plate. The fixed end of the screw spirally passes through the screw hole and slides through the through hole, and is fixedly connected to the top plate. This auxiliary equipment for the transportation and installation of building pipelines is used for the transportation and auxiliary installation of building pipelines, enabling convenient and safe transportation of pipelines with low labor intensity, while providing support and assistance for pipeline installation, thus improving pipeline installation efficiency.

The utility model belongs to the technical field of fixing supports, and discloses a long-strip-shaped concrete formwork fixing support which comprises a component steel bar, two component formworks are symmetrically arranged on the outer side of the component steel bar, inner supporting cushion blocks are arranged on the lower sides of the opposite side faces of the two component formworks, and an inner supporting steel pipe is arranged on the upper side between the two component formworks. According to the construction method, use of opposite-pull screw holes can be effectively avoided, the durability and attractiveness of the construction member are improved, a second nut on the outer side of the threaded rod is screwed, the second nut gets close to the construction member formwork, and therefore the connecting rod and the abutting block are driven to get close to the construction member formwork; and when the abutting block abuts against the surface of the component formwork, screwing of the second nut is stopped, so that the outer side of the component formwork is supported, the first nut on the outer side of the opposite-pull screw rod is screwed, the opposite-pull screw rod is stably fixed to the door-shaped steel frame, and therefore the rigidity of the door-shaped steel frame is enhanced.

An anchor structure special for a flexible support and having an anti-corrosion function comprises a cable body (1) and an anchor plate (2), one end of the cable body (1) penetrates into a mounting hole of the anchor plate (2), and the anchor structure is characterized in that the mounting hole of the anchor plate (2) is of a taper hole structure, and a wedge-shaped locking piece (4) is mounted between the outer surface of the cable body (1) and the mounting hole; a wedge-shaped locking piece (4) is arranged at the outer end of the anchor plate (2), an anti-loosening gland (5) is arranged at the outer end of the anchor plate (2) and located on the outer side of the wedge-shaped locking piece (4), a protective cover (13) is arranged on the outer side of the anchor plate (2) and located on the periphery of the whole anchorage device, and a sealing structure is arranged at a connecting seam between the protective cover (13) and the anchor plate (2). And the cable body at the key part is effectively protected, installation and construction are easy and convenient, the anti-corrosion function is good, rainwater, dust and the like cannot enter the anchorage device, and the service life is prolonged.

The utility model belongs to the technical field of special-shaped bridge structures, and particularly relates to an assembly type urban road bridge and culvert structure which comprises a bridge pier structure, the bridge pier structure comprises a bridge pier base and an upper bridge pier arranged on the bridge pier base, the upper bridge pier is arranged in a V shape, supporting pipes are symmetrically arranged at one end of the upper bridge pier, and the supporting pipes are hinged to the upper bridge pier. A main beam is arranged between the supporting pipes, side bridge plates are further arranged on the supporting pipes, a plurality of holes are formed in the main beam and the side bridge plates respectively, a bridge deck is arranged between the main beam and the side bridge plates, a plurality of supporting rods are arranged on the bridge deck, the supporting rods stretch into the holes, and the side bridge plates get close to or away from one another by adjusting the angle between the upper bridge piers. And the supporting rods are inserted into the holes to fix the side bridge plates and the main beams.

The present invention belongs to the technical field of soft soil foundation engineering monitoring, and provides an automatic comprehensive monitoring device for pore water pressure and stratified settlement of soft soil foundation engineering, including a measuring rod device that can be buried underground and a data acquisition device located on the ground; the measuring rod device includes a measuring rod assembly and a settlement anchor assembly; there are multiple measuring rod assemblies, and the multiple measuring rod assemblies are connected together in sequence up and down. The present invention can select the number of measuring rod assemblies according to the measurement point requirements of different projects, and multiple measuring rod assemblies are butt-jointed and assembled together up and down to adapt to different depth intervals, which has the advantage of convenient installation and construction. At the same time, the measurement data is transmitted to the data acquisition device in real time, and the entire monitoring process can be realized without on-site operation by personnel, realizing the simultaneous monitoring of stratified settlement and pore water pressure in different depth intervals and automatic real-time monitoring, which is conducive to reducing the cost of long-term monitoring and maintaining good monitoring accuracy.

The present application provides a prefabricated subway station lining structure joint, comprising a prefabricated lining structure tenon end and a prefabricated lining structure mortise end. The prefabricated lining structure tenon end comprises a water stop and a tenon end connecting part, the water stop is made of water-swelling rubber water stop, the cross sections of the water stop and the tenon end connecting part are both trapezoidal, and the water stop and the tenon end connecting part form a stepped protrusion; the prefabricated lining structure mortise end is provided with a water stop installation groove and a mortise end connecting part, the cross sections of the water stop installation groove and the mortise end connecting part are both trapezoidal, the water stop installation groove and the mortise end connecting part form a stepped through groove, so that the prefabricated lining structure tenon end is embedded in the prefabricated lining structure mortise end to realize the mortise-and-tenon connection. The mortise-and-tenon structure design is helpful for positioning and hoisting, increases the connection strength of the prefabricated lining structure, is convenient for installation and construction, prolongs the water seepage path between the prefabricated lining structures, and improves the waterproof performance.

The large-span double-frame prestressed CFRP suspension cable truss structure is a new type of CFRP suspension cable truss roof bearing structure system. The roof bearing structure system includes a main truss, a vertical support system and connecting rods. The main truss consists of two CFRP suspension cable trusses and a balance bar, and the vertical support system consists of a support column and a pipe truss. The CFRP suspension cable truss includes an upper CFRP suspension cable, a lower CFRP suspension cable, a vertical CFRP suspension cable and a suspension cable clamp; the CFRP suspension cable truss obtains bearing capacity by tensioning the upper CFRP suspension cable, and the two CFRP suspension cable trusses in each main truss are connected by a balance bar to form a force-bearing whole of the main truss, which can realize the large-span layout of the roof; the double-layer CFRP suspension cable can withstand horizontal, vertical loads and wind suction, and the main load-bearing component CFRP suspension cable has the advantages of light weight, high strength and corrosion resistance, which can realize the large span capacity and stable operation of the roof structure.

The utility model relates to the technical field of infrastructure construction auxiliary tools, in particular to a hoop for different pile diameters. Comprising an arc plate and a fastening bolt arranged at the end of the arc plate, and the arc plate comprises an arc plate section formed by connecting a plurality of arc plate chain links in series and connecting plates symmetrically arranged at the two ends of the arc plate section. The PHC pipe pile hoop can be suitable for various PHC pipe piles with different pile diameters, is good in universality, high in utilization rate, convenient to install and good in functionality, and is beneficial to saving construction cost, improving enterprise economic benefits and shortening the construction period; and the construction requirements of the cast-in-place cross beam can be met.

The present invention discloses a frame structure with an anti-seismic reinforcement device, which belongs to the field of anti-seismic reinforcement. It includes a frame structure and an anti-seismic reinforcement device, and the anti-seismic reinforcement device includes a connecting column, a self-resetting damper assembly, a horizontal support beam and two support rods; the self-resetting damper assembly is fixedly connected to the connecting column, the bottom of the connecting column and the self-resetting damper assembly are connected to the top of the horizontal support beam, and the bottom left and right sides of the horizontal support beam are respectively connected to the tops of the support rods on the left and right sides; the top of the connecting column is connected to the upper frame beam through an upper connecting structure, and the bottoms of the support rods on the left and right sides are connected to the beam-column node at the bottom of the frame structure through a lower connecting structure, and the upper connecting structure and the lower connecting structure are both assembled and detachable connecting structures. The present invention is convenient and quick to construct, the system has strong and stable energy consumption, simple maintenance, self-resetting ability, and the self-resetting damper can be reused, which effectively improves the anti-seismic performance of the original frame structure.

The utility model discloses a photovoltaic support structure for a same offshore wind and light field in the technical field of renewable energy power generation. The photovoltaic supporting structure for the same offshore wind and light field comprises an offshore wind power plant used for power generation and photovoltaic panels, the photovoltaic panels are laid in unoccupied sea areas between wind turbine generators of the offshore wind power plant, the photovoltaic supporting structure further comprises first rail cables fixedly connected to the wind turbine generators, and each first rail cable comprises a middle parallel section and anchoring sections at the two ends; the parallel sections are parallel to the horizontal plane and arranged between the wind turbine generators, and the anchoring sections are used for anchoring the two ends of the first rail cable to the seabed. The system further comprises a frame-type steel truss structure, the frame-type steel truss structure is fixedly connected to the adjacent first rail cables, and a photovoltaic panel is laid on the upper end face of the frame-type steel truss structure. The first rail cable and the frame type steel truss structure serve as supporting structures, implementation is convenient, the engineering amount is small, the construction cost is low, the method can be suitable for deeper sea areas, and when the method is suitable for construction near the built wind power plant, the built wind power plant is not disturbed by pile soil.

The invention belongs to the technical field of soft soil foundation engineering monitoring, and provides a soft soil foundation engineering pore water pressure and layered settlement automatic comprehensive monitoring device which comprises a measuring rod device capable of being buried underground and an acquisition instrument device located on the ground. The measuring rod device comprises a measuring rod assembly and a settlement anchor point assembly; the number of the measuring rod assemblies is multiple, and the multiple measuring rod assemblies are sequentially connected together from top to bottom. The number of the measuring rod assemblies can be selected according to the measuring point requirements of different projects, the multiple measuring rod assemblies are assembled together in an up-and-down butt joint mode to adapt to different depth intervals, and the advantages of being convenient and fast to install and construct are achieved. Meanwhile, measured data are transmitted to an acquisition instrument device in real time, the whole monitoring process can be realized without field operation of personnel, simultaneous monitoring and automatic real-time monitoring of layered settlement and pore water pressure in different depth intervals are realized, and reduction of long-term monitoring cost and maintenance of good monitoring precision are facilitated.

The utility model relates to the technical field of building construction, and disclose a kind of slope roof metal roof tile batten connecting piece and ridge beam's fixed structure, including the ridge beam of civil engineering structure and the slope roof of ridge beam connection setting, ridge beam top fixed ridge modeling, slope roof top is provided with roof tile, roof tile is fixedly connected with ridge modeling, roof tile includes keel, and keel is fixedly connected between ridge beam by connecting mechanism, connecting mechanism includes connecting piece and support piece, connecting piece can be adapted to sleeve on ridge beam, and connecting piece and ridge beam are fixedly connected between by fastener, and fastener includes tension bolt, connecting piece and ridge beam correspond to set through connecting hole, tension bolt is arranged in connecting hole, the outside of connecting piece is fixed support piece, and the end of keel towards ridge beam is supported on support piece and is fixedly connected with support piece, improve the stability and construction convenience of metal roof tile on slope roof installation.

The present invention relates to the technical field of geothermal resource development and utilization, and discloses a modular geothermal heating system and installation method, including: a heat exchange and circulation module, a secondary temperature increase and reuse module, a water treatment module, an automatic water replenishment module, a power distribution and automatic control module and a steel frame foundation; wherein the heat exchange and circulation module is connected to the secondary temperature increase and reuse module through a pipeline interface, and the heat exchange and circulation module is connected to the water treatment module through a pipeline interface; the heat exchange and circulation module, the secondary temperature increase and reuse module, the water treatment module and the automatic water replenishment module are all connected to the power distribution and automatic control module through power cables; and each module is respectively arranged on a steel frame foundation. The equipment is modularized and has an independent steel frame foundation. Each device of the module is installed and fixed on the steel frame foundation in a factory workshop to form an independent module. Each independent module can be quickly connected into a system after arriving at the site, and the installation and construction are convenient, which saves the construction period.

A kind of floating construction floor structure for sound insulation and vibration reduction of machine room equipment, the floating construction floor structure includes concrete floor structure layer, sound insulation and vibration reduction layer, waterproof structure layer, floating construction layer in turn from bottom to top distribution, the periphery of concrete floor structure layer is built with surrounding edge structure to form with vibration reduction floating construction installation area, the inner side of surrounding edge structure is pasted with frame isolation strip, sound insulation and vibration reduction layer is fixed in the vibration reduction floating construction installation area above concrete floor structure layer, waterproof structure layer is fixed above sound insulation and vibration reduction layer, floating construction layer is fixed above waterproof structure layer.The utility model can separate sound insulation and vibration reduction layer from building main body by installing frame isolation strip on one side of surrounding edge structure, so that floating construction floor structure plays the maximum acoustic effect, the lower part of floating construction layer is laid with sound insulation and vibration reduction layer, waterproof structure layer layer, can effectively improve the function of concrete structure floor sound insulation, waterproof, dustproof, effectively reduce the vibration frequency generated when equipment runs.

The invention relates to a device for installing a steel plate water-stop belt after an off-wall ditch pre-embedded clamping groove, which comprises a customized pre-embedded clamping groove, an L-shaped steel plate water-stop belt and a steel wedge, when a main body structure is constructed, the customized pre-embedded clamping groove is fixedly connected with a positioning steel bar, the L-shaped steel plate water-stop belt is installed in the customized pre-embedded clamping groove 1, and the steel wedge is installed in the L-shaped steel plate water-stop belt; a steel wedge is knocked into a gap between the customized embedded clamping groove and the L-shaped steel plate water-stop belt to fix the L-shaped steel plate water-stop belt, meanwhile, before concrete pouring of the off-wall ditch, water swelling glue is additionally arranged on one side of the upstream face of the L-shaped steel plate water-stop belt, and the waterproof effect of the off-wall ditch water-stop device is improved. According to the device for installing the steel plate waterstop after the clamping groove is pre-embedded in the off-wall ditch, two waterproof measures are added for the off-wall ditch subjected to secondary pouring, and the water leakage risk of the off-wall ditch subjected to secondary pouring can be effectively reduced. The device is simple in structure, easy to customize and process, convenient to install and construct on site, and beneficial to control of the construction period and labor investment.

The utility model discloses a multifunctional integral plant lighting lamp relates to plant lighting lamp technical field, the utility model discloses a lamp outer casing body, the upper end of lamp outer casing body is open -mouthed and is located, and the closed support mechanism is arranged in lamp outer casing body, the lower end distribution of lamp outer casing body is provided with the lighting lamp, the whole of lamp outer casing body is square structure and is located, and the both ends of lamp outer casing body are provided with the inclined shape, and one of the inclined surface of lamp outer casing body is provided with the integrated air inlet of going in and out, and the inner wall of lamp outer casing body is provided with the integrated fan of positive and negative rotation on one side of integrated air inlet of going in and out. The utility model replaces the conventional plant lighting, ventilation, dehumidification separate arrangement, makes installation construction more convenient, greatly saves the construction and maintenance cost of planting factory, can also be convenient for staff to operate construction, and then can save manpower construction cost.

The utility model belongs to the technical field of tube wells, and particularly relates to a modular frame structure of an assembled tube well, which comprises a plurality of tube wells, a pair of long steel bars and a pair of short steel bars are respectively sleeved on the peripheries among the plurality of tube wells, and the adjacent long steel bars and short steel bars are connected through bolts. A plurality of spacing steel bars are connected between the two long steel bars through bolts, and the spacing steel bars are located between the two adjacent tube hoistways; the upper ends of the support joists are connected to the lower ends between the two long steel bars, the lower ends of the supporting stand columns are installed at the upper ends of the corresponding structural beams, the upper ends of the structural beams and the lower ends of the adjacent supporting stand columns are connected into a whole through the studs, and the structural beams provide upward-supporting horizontal supporting faces for the adjacent supporting stand columns. The lower ends of the supporting stand columns take the adjacent structural beams as fulcrums to lift the support joists upwards, the frame assembling process is completed, and the problems that an existing assembly type tube well modular frame structure is low in traditional construction efficiency and poor in safety are solved.

This invention discloses a precast reinforced concrete frame column and a frame structure, including a frame column body, an outer steel pipe, a steel end structure, and a steel connecting bracket. Based on the connection position of the external beam on the frame column body, the column reinforcement cage has an inward-facing annular groove. The outer steel pipe is fitted outside the annular groove of the column reinforcement cage, with its outer wall flush with the outer wall of the column concrete body. The steel end structure is embedded within the column concrete body. Adjacent frame columns are fixedly connected via the steel end structure. The steel connecting bracket is fixed between the outer steel pipe and the external beam. The frame structure includes precast reinforced concrete frame columns and main beams. Corresponding steel connecting brackets are provided on the outer wall of the outer steel pipe of the precast reinforced concrete frame column. The end of the main beam is fixed to the other end of the steel connecting bracket. This invention simplifies the structure and construction process of the frame columns, main beams, and secondary beams, reduces steel usage, and improves construction efficiency.

The utility model discloses a hinged type vertical rod installation system which comprises an equipment vertical rod and a concrete foundation, a pre-buried base plate is pre-buried on the concrete foundation, the bottom end of the equipment vertical rod is hinged to the pre-buried base plate through a positioning hinge structure, the equipment vertical rod is provided with a traction steel cable, and a fixing ring is arranged on the concrete foundation. A pulley is arranged on the equipment vertical rod, and the equipment vertical rod is pulled to be in a vertical state from a horizontal state through a traction steel cable; fixing rib plates and rear installation rib plates are arranged at the bottom of the equipment vertical rod in the circumferential direction of the equipment vertical rod. The rear installation rib plates are located on the side, away from the fixing ring, of the equipment vertical rod. The fixing rib plates are located on the side, close to the fixing ring, of the equipment vertical rod, the bottom ends of the fixing rib plates extend to the position below the equipment vertical rod, positioning installation supporting lugs corresponding to the fixing rib plates are arranged on the embedded base plate, and positioning grooves are formed in the positions, corresponding to the installation positions of the rear installation rib plates, of the equipment vertical rod. Hoisting equipment is not needed, and the safety risk of on-site construction and the construction difficulty of installation of high-pole equipment are reduced.

The utility model relates to building structure technical field, concretely relates to a prefabricated rib shape basement outer wall structure, including the mutual connection of many protective plates, and the protective plate is the prefabricated concrete structure, the edge of the protective plate is equipped with tenon and interface groove, the back of the protective plate is equipped with longitudinal groove, the protective plate includes rib roof beam and many mainboards, and the rib roof beam is fixed between two adjacent mainboards and the periphery, the tenon is located at the edge position of the rib roof beam, and the interface groove is opened at the rib roof beam and the mainboard at the edge position, the front of the mainboard is equipped with convex texture, the utility model discloses prefabricated protective plate directly carries out the field assembly construction, does not need to erect scaffold, and the installation is convenient and simplifies the construction process, and the layered construction is controllable, and the prefabricated protective plate is installed in the way of splicing, and then is not easy to be influenced by complex geology and climate conditions.

The invention discloses a double anti-backflow retaining wall drainage pipe and a method for using the same. The retaining wall drainage pipe comprises a perforated PVC pipe, a first wire mesh, a first anti-filter geotextile, an anti-backflow system I, a second wire mesh, a second anti-filter geotextile and an anti-backflow system II; the drainage hole of the perforated PVC pipe is provided with the first wire mesh, the first anti-filter geotextile and the anti-backflow system I in sequence from the outside to the inside, and the perforated PVC pipe is provided with the second anti-filter geotextile, the second wire mesh and the anti-backflow system II in sequence from the inside to the outside near the pipe mouth; the invention has a double anti-backflow system, which can not only ensure efficient drainage work, but also prevent external water sources from backflowing into the rock and soil layer behind the retaining wall, thereby causing the risk of excessive hydrostatic pressure of the retaining wall. The invention is convenient to construct and can be applied to drainage work in various projects such as foundation pit engineering and road slope engineering.

The invention discloses a monitoring and alarming method and system for a route sudden blocking accident, and relates to the technical field of traffic safety. The method comprises the steps of deploying a parallel resistor array and constructing a parallel resistor model, simulating different array accidents to obtain simulated accident data, constructing different simulated accident change diagrams to obtain simulated accident feature information, constructing an accident judgment model of the parallel resistor array, and monitoring the parallel resistor array in real time to obtain monitored accident data. Building a monitored accident change diagram and acquiring monitored accident feature information, judging an array accident in combination with an accident judgment model, monitoring a transient traveling wave to obtain an accident node, and generating a corresponding alarm signal in combination with the judged array accident and feeding back the alarm signal; through the technical scheme of the invention, the accuracy of accident monitoring is improved, and the misjudgment condition of accident monitoring can be effectively reduced.

The utility model belongs to the technical field of sewage treatment application, and particularly discloses a spiral conveying and squeezing all-in-one machine which is composed of a driving motor, a conveying section and a squeezing section, and the conveying section comprises a transverse conveying shell, a plurality of vertical supporting parts, a feeding port and a shaftless spiral; the squeezing section comprises a squeezing shell, a water collecting tank, a slag outlet, a water outlet, a punching net plate and a spiral with a shaft; wherein the length size of the transverse conveying shell is larger than that of the squeezing shell, the length size of the shaftless spiral is larger than that of the shaft spiral, and the connecting face of the transverse conveying shell and the squeezing shell is of a detachable structure. The utility model has the beneficial effects that the integrated structural design is adopted, and the installation and the construction are convenient through a horizontal installation mode; solids in a pump station, a catch basin and the like can be quickly conveyed and squeezed, so that the economic cost and the efficiency of sewage treatment are improved; and the fixed pressing plate, the elastic brush seat and the brush can be used for cleaning solids on the perforated mesh plate, so that blockage is prevented.

The invention relates to a construction method for preventing cracking and chipping of a plain concrete secondary lining of a tunnel. The construction method comprises the steps that a prefabricated steel wire rope net is transported to a construction site; one end of a steel wire rope net is connected with a constructed reinforced concrete lining in the tunnel, and the other end of the steel wire rope net is connected with a waterproof plate laying and hanging trolley; the waterproof plate laying and hanging trolley is moved to tension the steel wire rope net; the lining formwork trolley is moved to the steel wire rope net laying area and fixed, and a sealing head formwork is installed at the end of the lining formwork trolley; lining concrete is symmetrically and continuously poured in a layered mode through a concrete pouring window of the lining formwork trolley and vibrated compactly; the connecting point of the waterproof plate laying and hanging trolley and the steel wire rope net is detached; and the lining formwork trolley and the waterproof plate laying and hanging trolley are moved to the next steel wire rope net laying area for steel wire rope net laying and lining concrete pouring construction. Compared with a reinforcing mesh, the steel wire rope mesh is high in tensile strength, good in integrity and easy and convenient to construct, steel materials are greatly reduced, and the construction cost is reduced.

The utility model discloses a lifting device for mounting a large screen. The lifting device mainly comprises a clamping mechanism, a fixer, a telescopic frame and a lifting mechanism, the device is mainly used for hoisting a large display screen on the outer side of a wall. The lifting mechanism is driven to displace through stretching and retracting of the telescopic frame, and the lifting mechanism capable of changing the lifting distance is matched, so that a space convenient for operators to carry out installation construction is reserved, and the device is suitable for screens of different sizes and does not occupy too much ground space; the screens are not prone to deflection or falling off in the hoisting process through the clamping mechanism which can be telescopically matched with the screens of different sizes and fix the screens. The device solves the problems that in outdoor large screen hoisting construction, ground congestion is likely to be caused, and screens of different sizes are not likely to be hoisted; the construction efficiency of screen hoisting can be improved, the influence of construction on a road is reduced, and the construction safety is enhanced.

The utility model provides a plateau high-altitude outgoing line tower structure with a roof waterproof node structure. The plateau high-altitude outgoing line tower structure comprises a structural roof floor, concrete piers, an outgoing line tower, bolts, embedded parts and a waterproof structure. A concrete pier is directly and integrally poured on a structural roof floor, and an embedded part is arranged on the top face of the concrete pier; the outgoing line tower is arranged above the embedded part and is fixed with the embedded part through a bolt; a waterproof structure is laid on the intersecting surface of the concrete pier and the structural roof floor slab. The outgoing line tower is arranged on the concrete piers located on the structural roof floor, so that installation and construction of the outgoing line tower are facilitated, the construction difficulty is reduced, the construction efficiency is improved, the adverse effect of the outgoing line tower on the structural roof floor is reduced, the waterproof performance of a roof is guaranteed, and stable operation of a power system is guaranteed. The adopted roof waterproof node structure has the advantages of ultraviolet resistance, high temperature resistance, weather resistance and the like, the number of construction procedures is small, hollowing and falling of the waterproof roll are prevented, and the advantage of good waterproofness is achieved.