83results about How to "Reduce construction risk" patented technology

The utility model discloses a flexible protective device for treating a collapsed cavity at the top of a tunnel, which comprises at least two flexible protective nets which are arranged from top to bottom and connected to the inner wall of the collapsed cavity, and the aperture of the lower part of each flexible protective net is smaller than that of the upper part of each flexible protective net. The protective net is composed of a steel wire rope protective net body and a twisted-pair hexagonal flexible net body, the steel wire rope protective net body is formed by rhombic weaving of Galfan coating steel wire ropes, and the twisted-pair hexagonal flexible net body is formed by weaving of A-grade Galfan coating steel wires, overlaps the edge of the steel wire rope protective net body by 10-20 cm and is tied. The steel wire rope protective net is formed by splicing meshes of different specifications, splicing follows a specific principle, and steel wire rope buckles are used for connection. The device is further provided with anchor rods, spring hooks and other components, and the number and size of the components are determined according to the three-dimensional data of the collapsed cavity. Compared with a traditional protective net, the device can effectively absorb rockfall energy, is good in buffering effect, high in adaptability to different collapse cavities, easy and convenient to install and capable of reducing construction risks and guaranteeing tunnel construction and operation safety.

The utility model provides a kind of electromechanical engineering equipment hanger structure, it is related to electromechanical equipment installation technical field, including two groups of mounting bracket, each group of mounting bracket is provided with a pair, the bottom end of two groups of mounting bracket is movably installed with supporting plate, a pair of steel wire rope is installed between the mounting bracket, a pair of steel wire rope is wound on the rotating roller, the bottom end of steel wire rope is connected with the surface of supporting plate, and each mounting bracket in two groups of mounting bracket is installed with motor, and the output end of motor is connected with the one end transmission of rotating roller by coupling. The device is lowered by the extension of a pair of steel wire rope when rotating roller rotates, reduces construction height, and the equipment is installed by operator, reduces construction risk, and improves construction efficiency.

This invention relates to the field of tunnel construction technology, and more particularly to a system and method for dynamically optimizing tunnel construction parameters based on geological information from point cloud data. At multiple monitoring time points, point cloud data is collected from the tunnel segment to be constructed, obtaining multiple point cloud datasets. The tunnel segment is divided into multiple construction areas, and multiple regional point cloud datasets are obtained from these datasets. Point cloud change analysis is performed on each regional dataset to obtain multiple point cloud change rates. Based on these regional point cloud datasets, reflection intensity analysis is conducted to obtain multiple reflection intensity coefficients. Combined with the multiple point cloud change rates, geological analysis is performed to obtain the distribution of concealed geological information. Based on this distribution, tunnel construction parameters are dynamically optimized to obtain optimized tunnel construction parameters for tunnel construction. This achieves the technical effect of improving the efficiency and safety of tunnel construction while reducing construction risks and costs.

The invention discloses a large longitudinal slope simply supported steel truss girder high-position girder falling construction method, which relates to the technical field of bridge construction, and comprises the following steps: S1, arranging a girder falling supporting point position, manufacturing a girder falling support and supporting a steel truss girder; s2, synchronous jacking, local falling, section drawing and re-jacking are circularly and alternately conducted through a beam falling support at one end of the steel truss beam till first-stage beam falling is completed; s3, a jack arranged on a high pier end padstone of the steel truss girder is dismantled, girder falling continues, and second-stage girder falling is completed; s4, synchronous jacking, local falling, section drawing and re-jacking circulation are conducted through a beam falling support at the low pier end of the steel truss beam till third-stage beam falling is completed; s5, the jack arranged on the low pier end padstone of the steel truss girder is dismantled, girder falling continues, and fourth-stage girder falling is completed; s6, pressure grouting is conducted on the anchor bolt holes, other facilities are dismantled, and construction is completed; the technical problems that in the prior art, beam falling of a large-span steel truss girder bridge is difficult to control, and efficiency is low are solved.

This invention discloses a grouting device in which a centralizing mechanism, a slip mechanism, and a rubber sealing cylinder are slidably mounted on a central pipe in sequence along the direction of grout flow. The slip mechanism is fixedly connected to the centralizing mechanism and slides synchronously on the central pipe. The end of the rubber sealing cylinder opposite to the centralizing mechanism is fixedly connected to the central pipe through a force-limiting connection mechanism, and the rubber sealing cylinder moves synchronously with the central pipe through the force-limiting connection mechanism. This invention integrates all the technical advantages of segmented precise grouting, controllable grouting parameters, anti-clogging and anti-jamming, flexible setting and unsealing, and recovery in extreme cases. It can fully match the differentiated grouting needs of different strata, geological conditions, and grout volumes, fundamentally solving all the technical defects of traditional grouting devices, significantly improving the quality and efficiency of stratum grouting reinforcement, and reducing construction costs and risks. It is the optimal technical solution for surface directional drilling grouting construction.

The utility model belongs to the technical field of immersed tunnel butt joint, and discloses a top sealing assembly and a joint tool for a final joint of an immersed tunnel. The top sealing assembly comprises a top sealing frame, a top shell and a manhole pipe, and the top sealing frame is used for being arranged at the top of a gap between every two adjacent immersed tubes and used for assisting in forming a top sealing plate of a final joint of the immersed tunnel. The top shell covers the top sealing frame and is detachably connected with the top sealing frame, and a moving space capable of containing constructors is formed between the top shell and the top sealing frame. One end of the manhole pipe is connected with the top shell, the other end of the manhole pipe can extend to the water surface, and a channel in the manhole pipe is communicated with the activity space. By adopting the top sealing assembly for the final joint of the immersed tunnel, a constructor enters the moving space from the manhole pipe for water stop inspection, and the safety risk can be reduced; and meanwhile, constructors can pour the top sealing frame in the movable space above the top sealing frame to form the top sealing plate, so that the construction difficulty and the construction cost are reduced.

This utility model discloses a rapid testing device for rock deformation parameters, comprising a protective shell, one end of which is connected to the drill pipe and the other end to the drill bit. A power supply module, a resistance strain gauge group, a deformation parameter testing module, and a wireless transmission module are installed inside the protective shell. The power supply module provides power to the resistance strain gauge group, the deformation parameter testing module, and the wireless transmission module. The internal power supply line connecting the power supply module and the resistance strain gauge group is connected to the deformation parameter testing module via a signal transmission line. The deformation parameter testing module is electrically connected to the wireless transmission module. This utility model, by deploying resistance strain gauges, the deformation parameter testing module, and the wireless transmission module, monitors the strain signal generated by the interaction between the drilling equipment and the rock in real time, achieving rapid, accurate, and real-time testing of the Poisson's ratio of the rock mass during drilling, thereby guiding the evaluation of surrounding rock stability and the optimization design of support schemes in underground engineering.

The crane comprises a vehicle body, a slewing ring and an arm frame, the slewing ring is rotatably mounted on the vehicle frame about a vertical axis, and one end of the arm frame is connected to the slewing ring; and a lateral wind-resistant device, which comprises two wind-resistant parts arranged on the left and right sides of the arm frame, each wind-resistant part comprises a first cable and an adjusting device, one end of the first cable is connected to the arm frame, and the adjusting device is configured to adjust the included angle between the first cable and the arm frame. The crane provided by the present disclosure can adapt to the operation requirements in harsh environments with strong wind and gale.

The application discloses a super-large hoist head sheave assembling device and a process thereof, and belongs to the technical field of hoist head sheave assembling devices, and comprises an assembling device, a lifting device and a head sheave body; the assembling device comprises a base and two assembling platforms installed on the upper end of the base, two I-shaped steels installed on the base are arranged between the two assembling platforms, and a lifting component is arranged between the two I-shaped steels; the lifting device; and the head sheave body.The application makes full use of a derrick box body to build an assembling platform, and simultaneously uses a lifting component which is simple in structure and convenient to assemble to lift the lower head sheave when the head sheave is assembled, so that the time can be saved, the use, disassembly and carrying are convenient, and the adaptation degree is high; the construction process is inserted in a large crane bulk derrick process, the head sheave is hoisted by making full use of a crane for hoisting the derrick, and when the head sheave is hoisted, the top layer platform of the derrick is not installed, the overall construction period of the mine hoisting system is shortened, and the difficulty and construction risk of hoisting and positioning the head sheave are reduced.

The embodiment of the invention provides vertical shaft steel pipe welding equipment. Relates to the technical field of penstock shaft construction. The outer side welding mechanism comprises an outer side rail, an outer side trolley and an outer side welding robot, the outer side trolley is arranged on the outer side rail and slides along the outer side rail, the outer side welding robot is arranged on the outer side trolley, and the outer side welding robot is used for welding an outer side welding seam of the steel pipe; the inner side welding mechanism comprises a telescopic frame, a hoisting frame, an inner side track, an inner side trolley and an inner side welding robot, the inner side track is arranged on the telescopic frame, the hoisting frame is connected with the telescopic frame, the inner side trolley is arranged on the inner side track and slides along the inner side track, and the inner side welding robot is arranged on the inner side trolley and slides along the inner side track. The inner side welding robot is used for welding inner side welding seams of the steel pipes; the hoisting mechanism is connected with the hoisting frame so as to drive the inner side welding mechanism to move in the vertical shaft in the axis direction of the vertical shaft. The equipment is used for achieving the effects of reducing construction risks and relieving the labor intensity of operators.

This utility model relates to the field of cast-in-place pile construction technology, specifically to a suspended mud pump, including a mud pump body, a support assembly, and a floating assembly. The support assembly has a centrally located space for mounting the mud pump body, which is situated within this space. The floating assembly is positioned around the support assembly and includes at least two suspension units. These suspension units provide buoyancy to support the mud pump body. The mud pump body reciprocates based on these suspension units, following changes in the mud slurry level. The mud pump body has a suction port located at its lower part, flush with the bottom of the floating assembly. This design prevents the water level from exceeding the motor's height or causing idling, extending equipment lifespan. Furthermore, by maintaining a reasonable relative depth between the suction port and the liquid surface, fluctuations in suction resistance are reduced, ensuring stable mud circulation flow.

The invention belongs to the technical field of visual processing, and particularly discloses a power transmission line mechanical construction whole process dynamic monitoring system based on satellite remote sensing, which comprises a remote sensing image analysis module, a three-dimensional scene reconstruction module, a terrain ecological evaluation module, a line selection simulation measurement and calculation module, a layout rationality checking module and a comprehensive report generation module, each module can analyze a multi-angle three-dimensional satellite remote sensing image of a target construction area and extract a high-resolution orthoimage and a digital elevation model; reconstructing regional environment data, and generating a macroscopic live-action three-dimensional scene; evaluating terrain stability, identifying ecological environment elements, simulating and optimizing line selection in combination with the traffic demand of the power transmission and transformation project, and synchronously measuring and calculating road construction cost; synergistically analyzing the terrain gradient and stability, and checking the rationality of to-be-laid land such as tower footing; and finally integrating related results to form a comprehensive auxiliary monitoring report. The dynamic monitoring efficiency and accuracy of the whole mechanical construction process of the power transmission line can be remarkably improved.

The utility model belongs to new energy technology field, especially point to a kind of flexible photovoltaic carport, including the main stand and main support beam of transverse interval arrangement, several steel strands are arranged on two main support beams, and the both ends of steel strand are anchored in tension with main support beam, several longitudinal oblique drainage channels are arranged on the steel strand between two main support beams, longitudinal oblique drainage channel is connected with steel strand by first connecting piece, and photovoltaic panel assembly is spliced and is laid flat on the top of the canopy formed by main support beam and steel strand by second connecting piece installed on longitudinal oblique drainage channel;The utility model forms canopy bearing structure by the steel strand of transverse arrangement and main support beam, need not set up transverse purlin, reduce material cost and assembly complexity.

The present application relates to the technical field of fracture monitoring, and is a pulse fracturing active fracture monitoring method based on seismic-electric coupling, which comprises using a fracturing nipple excitation source as an active elastic wave source, receiving the electric signal generated by seismic-electric coupling by using a multi-channel electrode array arranged, adopting time-frequency analysis and fracture inversion based on a frequency domain template to realize inversion and visualized output of the existence, spatial position, trend and scale of the fracture. The present application excites a pulse by using a fracturing nipple, generates an elastic wave signal, emits an excitation current, enhances the intensity of the seismic-electric effect electric signal, analyzes the change of the electric field around the fracturing nipple, and thus realizes real-time active monitoring of the development and distribution of fracturing cracks and improves the accuracy and real-time performance of crack detection.

The utility model belongs to the technical field of shield tunneling machines, and particularly provides a cutterhead flushing device and a tunneling machine comprising the cutterhead flushing device, the cutterhead flushing device comprises a bulkhead gate, a flushing unit and a water supply unit; the bulkhead gate is detachably mounted on a mounting seat of the flushing unit; the flushing unit is detachably mounted on the bulkhead gate; one end of the water supply unit is connected with the flushing unit, and the other end of the water supply unit is connected with an external water source and used for supplying water to the flushing unit. By arranging the bulkhead gate, the problem that in the prior art, a fixed flushing device cannot be overhauled at normal pressure is solved, the construction risk is effectively reduced, and the application range of equipment is widened; by arranging the flushing unit and the water supply unit, the problems that in the prior art, a fixed flushing pipe is limited in flushing area, complex in pipeline, rapid in water pressure attenuation and the like are solved, and the cutterhead flushing effect is improved.

The invention discloses a gas cabinet side plate modular assembly device and method, the gas cabinet side plate modular assembly device comprises four jig frame beams, the four jig frame beams are welded and fixed, and the bottoms of the jig frame beams located on the left side and the right side are fixedly connected with a plurality of jig frame columns distributed at equal intervals; the inner sides of the jig frame beams located on the left side and the right side are fixedly connected with a plurality of horizontal jig frame secondary beams distributed at equal intervals, the middle ends of the inner sides of the jig frame beams located on the front side and the rear side are fixedly connected with a vertical jig frame secondary beam, and the tops of the jig frame secondary beams are fixedly connected with module shaping plates. According to the modularized splicing device for the side plates of the gas holder, the side plates are constructed in a modularized mode through the splicing technology on the horizontal ground, and the chord height, the radius and other sizes of the arc-shaped structures of the side plates can be effectively controlled; welding shrinkage deformation control can be well done in advance, and effective quality control can be achieved for installation of the side plate of the gas holder.

The utility model discloses a circular hoop diameter adjusting device for building construction, and relates to the technical field of diameter adjusting devices. A circular hoop diameter adjusting device for building construction comprises a plurality of lead screws which are circumferentially distributed, and the multiple lead screws are in threaded connection with sliding blocks; the synchronous driving assembly is used for synchronously driving the lead screws to rotate synchronously; a limiting baffle is installed on the sliding block, and an operation distance is reserved between the limiting baffle and the front end of the sliding block. The synchronous driving assemblies such as the conical fluted disc and the bevel gear are driven by the motor to drive the screw rods to rotate synchronously, so that the sliding blocks mounted on the screw rods can synchronously change the positions between the sliding blocks and the circle center of the conical fluted disc, and the required diameter of a steel bar circle can be accurately adjusted; the grooves formed in the front ends of the sliding blocks can limit the steel bars and prevent the steel bars from slipping, and the cushion blocks with the same thickness are additionally arranged in the grooves, so that the depth of the grooves can be flexibly adjusted, and the steel bars are convenient to take and place.

This invention discloses a safe construction passage for offshore beam joints, belonging to the field of marine engineering technology. It includes a transverse support frame located at the top of the beam, with a first vertical rod fixedly connected to the support frame. A bottom horizontal rod is fixedly connected to the first vertical rod, and a second vertical rod is connected to the bottom horizontal rod. A telescopic ramp abuts above the bottom horizontal rod, and the ramp is located between adjacent pile caps, thus forming a construction passage between them. A drive motor is installed inside the ramp, controlling its extension and retraction. The drive motor is electrically connected to a wind turbine generator, a controller, and a battery. The battery stores the electrical energy generated by the wind turbine generator and transmits it to the controller and drive motor. This invention effectively solves the drawbacks of traditional safety measures relying on personal protective equipment, significantly improves construction efficiency and safety, ensures the continuity and safety of construction in complex marine environments, greatly reduces construction risks, and improves construction efficiency.

The invention relates to the technical field of optical fiber communication equipment, in particular to an intelligent temperature control heat shrink tube heating device and method for 12-core optical fiber splicing, and the device comprises a supporting and fixing module, a magnetic type heating execution module, an intelligent temperature control module, an induction triggering module, a portable power supply module and a protective portable module. The supporting and fixing module comprises a shell, a bottom plate, a supporting rod and a switch fixing plate; the bottom plate is fixed in the shell, the supporting rod is vertically fixed to the top of the bottom plate, and the body is fixed to the top of the bottom plate and embedded into the lower magnet. The switch fixing plate is fixed on one side of the bottom plate; the disassembly and assembly time of the magnetic heating assembly is less than or equal to 10 seconds, tool assistance is not needed, and the cleaning and maintenance efficiency of the heating plate is improved by 80%; the replaceable lining is adaptive to heat shrink tubes with different outer diameters, the universality is high, the 12-core independent heating channel and PID precise temperature control are adopted, the temperature deviation is smaller than or equal to 0.8 DEG C, the heat shrink tubes shrink uniformly, the connection loss dispersion is reduced to be within + / -0.01 dB, and the transmission stability is greatly improved.

The utility model discloses a steel-concrete composite beam bridge with a multi-stage energy consumption self-resetting anti-collision guardrail, which mainly comprises the multi-stage energy consumption self-resetting anti-collision guardrail, a concrete bridge deck and a composite steel beam, and the multi-stage energy consumption self-resetting anti-collision guardrail comprises an anti-collision guardrail plate, a reinforced concrete guardrail, an energy consumption device and an energy consumption groove. The concrete bridge deck slab comprises bridge deck concrete, transverse stiffening ribs and bridge deck slab longitudinal steel bars, and the combined steel beam comprises a steel main beam, a diaphragm beam, welding nails and a steel bottom plate. According to the utility model, the anti-collision guardrail plate and the combined steel beam are integrally formed by adopting the prefabricated parts, and only the reinforced concrete guardrail and the concrete bridge deck are required to be cast in situ; when collision occurs, the first-stage energy consumption device preferentially absorbs and disperses collision energy and then transmits the energy to the second-stage energy consumption device, the second-stage energy consumption device absorbs the remaining collision energy, the elastic self-resetting device arranged in the second-stage energy consumption device automatically restores guardrail deformation after collision, the manual maintenance requirement is reduced, and the integrity and durability of a bridge are enhanced.

The invention relates to a miscellaneous and confined space large-diameter shield split translation system which comprises a steel plate sliding system laid at the bottom of a construction well. The split type steel sleeve device is arranged above the steel plate sliding system and comprises a steel sleeve upper half part, a steel sleeve lower half part and a height adjusting and rotation limiting device connected between the steel sleeve upper half part and the steel sleeve lower half part; the adjustable bearing support is arranged between the steel base below the lower half part of the steel sleeve and the steel plate sliding system; and the pushing device acts on the steel base and the steel sleeve and drives the split type steel sleeve device and the steel base to translate on the steel plate sliding system. The steel sleeve has the beneficial effects that the problem that a traditional steel sleeve is too high in overall height and cannot pass through a low-clear-height limited space is effectively solved, the existing structure does not need to be disassembled and modified, and the construction risk is reduced.

The invention discloses a transportation and installation system and installation method for stair flight plates of an entrance and exit walking channel of a subway station. The transportation and installation system for the stair flight plates comprises an intelligent travelling crane, a winch and the entrance and exit channel. The entrance and exit channel comprises an escalator channel and a walking channel which are arranged side by side; ladder columns are arranged on the two sides of the walking channel at intervals; the intelligent travelling crane is provided with a base, mechanical telescopic legs and a fixed table; the mechanical telescopic legs are installed at the four corners of the base, each mechanical telescopic leg is formed by connecting 2-4 intelligent lifting supporting columns in series, the fixed table is located above the mechanical telescopic legs, the bottom of the fixed table is connected with the four mechanical telescopic legs, and limiting and positioning structures matched with each other are arranged between the fixed table and the stair flight plate; the winch is installed on the top platform section of the walking channel and connected with the intelligent traveling crane through a steel wire rope. The method is high in feasibility and convenient to construct, the construction efficiency is improved, manpower is reduced, and transportation and installation of the stair flight plate of the access walking channel can be effectively met.

The invention provides a construction method of a fair-faced ultra-high-performance precast concrete wall. The construction method specifically comprises the following steps that a square concrete pouring mold with an upward opening is formed by one face mold plate and four side mold plates of a pouring mold of the prefabricated concrete wall, and a reinforcement cage is placed to pour UHPC concrete till the thickness of the UHPC concrete reaches 20%-80% of the design thickness of the prefabricated concrete wall; after pouring is completed, curing forming is conducted, the four side formworks are disassembled, the other side formwork and the four side formworks are reassembled to form a new upper opening type mold, UHPC concrete of the same formula is poured till the thickness of the UHPC concrete is 80%-20% of the design thickness of the prefabricated concrete wall, the formed first half concrete wall and the bottom mold are turned by 180 degrees, and the bottom mold is turned by 180 degrees; and the exposed reinforcement cage is vertically and downwards inserted into the new concrete pouring mold and is integrally formed and maintained with the newly poured concrete, and finally supplementary pouring is conducted on the center joint. By means of the innovative technology combining multi-time pouring and overturning, the problems of internal bubbles, surface defects and steel bar positioning of the UHPC wall are effectively solved.

The utility model provides a municipal drainage pipeline groove support blank area reinforcing device, a supported groove is provided with an existing pipeline staggered with a newly-built pipeline, the supporting device comprises a plurality of fixing piles, enclosing purlins, a support, a supporting plate, a cross beam and slings, the fixing piles are inserted into the two sides of the groove side by side, the enclosing purlins are fixed on the fixing piles on the two sides of the blank area, and the supporting plate is fixed on the cross beam. The supports are fixed on the fixing piles and the surrounding purlins on the two sides of the blank area in a plane mode, the supporting plates are arranged between the supports and the side walls of the groove and used for surrounding the retaining wall, the cross beams are erected on the side walls of the two sides of the groove and located on the existing pipeline, and the slings are arranged on the cross beams and the existing pipeline in a sleeving mode and used for fixing the existing pipeline. The bracket is fixed on the fixed piles and the enclosing purlins and is matched with the supporting plate, so that the retaining wall can be effectively enclosed, and soil collapse is prevented; the cross beams are erected on the side walls of the two sides of the groove and located above the existing pipeline, the existing pipeline is fixed in cooperation with the slings, displacement and damage of the existing pipeline caused by soil disturbance in the construction process are avoided, and the safety of the existing pipeline is guaranteed.

This utility model discloses an electric bridge side drilling tool, including a tool frame, which includes a suspension frame and a support frame. The suspension frame has a downward-facing hanging part, and the support frame is fixed to the right side of the suspension frame. A drive and walking component is mounted on the suspension frame, and a drilling component is mounted on the support frame. A support base plate is connected to the bottom of the support frame, and the drilling component is mounted on the support base plate. This tool eliminates the need for additional personnel to assist in its movement, saving manpower and improving its mobility. It also eliminates the need for construction personnel to perform high-altitude drilling operations outside the bridge crash barrier, reducing construction costs and risks. Furthermore, it ensures uniform height, depth, and levelness of the drilling, guaranteeing the quality of the drilling and the installation effect of the support structure. This effectively saves drilling time and improves the construction progress of the pipe box support.

The present application relates to the technical field of anchor cable grouting body, and discloses a preparation method of a solidifying agent suitable for anchor cable grouting body in soft soil areas, which comprises the following preparation steps: 1) cement and water are placed in a stirrer to be stirred and mixed to form a cement solution; 2) emulsified asphalt is added to the cement solution to be stirred and mixed to form an emulsion; 3) water reducing agent and defoaming agent are added to the emulsion respectively, and the emulsion, the water reducing agent and the defoaming agent are stirred and mixed to form a solidifying agent; the shear resistance of cement is improved by using the emulsified asphalt and cement in a complex manner; compared with the cement neat grout used to reinforce soft soil, the present application can obviously improve the mechanical properties and water resistance of the solidified soft soil, reduce the risk of engineering construction, enhance the durability of the built building (structure), reduce the possibility of uneven settlement, and solve the problems of foundation pit instability and excessive deformation in soft soil areas.

The utility model belongs to the technical field of continuous beam construction, and particularly relates to a novel continuous beam intelligent suspension pouring bridge fabrication machine oil cylinder push type walking device which comprises a walking oil cylinder and a supporting frame, the front end of the walking oil cylinder is connected with a frame body of a suspension pouring bridge fabrication machine, supporting grooves are formed in the top of the supporting frame at equal intervals in the walking direction, and the supporting grooves are connected with the walking oil cylinder. The tail end of the walking oil cylinder can enter the supporting grooves in sequence, and when the tail end of the walking oil cylinder is located in the supporting grooves, the supporting frame provides supporting force for the tail end of the walking oil cylinder. The utility model has the advantages that the construction risk is reduced, the construction efficiency is improved, and the personnel safety is guaranteed.

This utility model discloses a trough-type drainage pipe fitting for bathrooms, including an adjustable plastic drainage trough, a trough connector, and a central drainage connector assembled together. The adjustable plastic drainage trough is a U-shaped trough structure with one open end, symmetrically arranged at both ends of the trough connector. The trough connector is a U-shaped open structure with side grooves on both sides, corresponding to the open ends of the adjustable plastic drainage trough. The bottom of the trough connector has a bottom groove with a through hole. The central drainage connector is located on the bottom groove of the trough connector. The central drainage connector is an integrally molded design, including a base plate and a drainage pipe that is connected to the base plate. The base plate is located in the bottom groove, and the drainage pipe passes through the through hole. This utility model drainage pipe fitting has the advantages of high drainage efficiency, easy installation, convenient maintenance, and adaptability to high-flow drainage scenarios, effectively improving the drainage process of bathroom shower rooms.

According to the hydraulic puncher used for the coiled tubing and used for drilling in the casing pipe, the puncher is connected through the coiled tubing, then fluid is pumped through the ground, the two-stage piston is pushed under the action of fluid pressure, the two-stage piston drives the sliding groove core shaft, and the method that axial downward thrust is converted into radial force through an inclined T-shaped groove matching structure is adopted; finally, a punching nail on the executing mechanism acts on the inner side of the casing pipe, large extrusion force is obtained through a two-stage piston and transmission of micro-inclination force to complete punching operation on the casing pipe, punching is reliable, the hole shape is attractive, recovery is completed only by lifting a pipe column after punching is completed, and damage to an oil well caused by secondary salvage and punching through a chemical corrosion method is avoided. The device is simple in structure, low in required fluid pressure and flow, simple to operate and capable of completing the punching operation only by pumping the flow on the ground and observing the pumping pressure without connecting a complicated matching tool string. And compared with a traditional method of punching in the sleeve, the operation process is simple, efficiency is high, cost is low, and difficulty is small.

The utility model relates to the technical field of building construction, in particular to an assembly type side wall pushing device which comprises a first door frame, a second door frame and a pushing device, a side wall to be installed is attached to the first door frame, the second door frame is used for positioning, the axial direction of the pushing device is in the horizontal direction, and the pushing device is connected between the second door frame and the first door frame. And the pushing device is vertical to the second door frame and the first door frame. The thrust axis of the thruster is kept in a natural vertical state with the mounting surface of the side wall component to be mounted, the thrusting direction of the thruster is completely consistent with the normal direction of the surface of the side wall component to be mounted, forward thrusting can be directly realized, the angle does not need to be manually adjusted, accurate alignment thrusting can be realized, and the working efficiency is greatly improved. The assembling precision and the mounting efficiency of the side wall are remarkably improved, and the problem of errors caused by manual adjustment in a manual hoisting and hydraulic pushing system is solved.