165results about "Shaft equipment" patented technology

The invention belongs to the technical field of gravity energy storage, and particularly relates to a high-channel-utilization-rate gravity energy storage system based on vertical circulation operation, which comprises at least one energy conversion shaft, at least one empty return shaft, a top shaft transfer section and a bottom shaft transfer section, the top hoistway transfer section is communicated with the upper part of the energy conversion hoistway or the empty return hoistway through reciprocating translational motion, and the bottom hoistway transfer section is communicated with the lower part of the energy conversion hoistway or the empty return hoistway through reciprocating translational motion; racks are arranged on the inner walls of the hoistways, gears are arranged on the elevator, and the racks and the gears are meshed to achieve movement of the elevator in the circulating hoistways. Compared with an existing steel wire rope or chain annular conveying chain scheme, the conveying load is transferred to different heights of the vertical channel well wall in a distributed mode, the bottom and top horizontal transverse moving mechanism and the vertical load are transferred to a horizontal wheel rail, the conveying capacity is higher, the service life is longer and more reliable compared with a traditional circulating conveying chain cable, and the later operation and maintenance cost is reduced.

A vertical shaft construction slag sliding well bottom rock ballast gathering and protecting device comprises a supporting structure, an upper fence and a sliding groove structure are sequentially arranged on the supporting structure from top to bottom through a traction structure, and a lower fence is arranged on the lower portion of the sliding groove structure. The lower fence and the sliding groove structure are driven through a linkage structure. When the lower fence is unfolded, the sliding groove structure is folded; when the lower fence is folded, the sliding groove structure is unfolded. According to the stone slag gathering and protecting device at the bottom of the slag slipping well for vertical shaft construction, stone slag falling to the bottom of a vertical shaft can be effectively gathered; meanwhile, in the bottom deslagging operation process, the device can stop rock ballast falling from the upper portion.

The invention discloses a method for calculating the limit sinking depth in vertical shaft sinking construction, and the method comprises the steps: S1, building a construction mechanical model in a vertical shaft lifting and controlling sinking process, and obtaining an analysis equation; s2, converting the analysis equation according to the value of the blade foot end resistance Rj; s3, calculating a vertical suspension force T; and S4, calculating the limit sinking depth Hmax of the vertical shaft. The method has the advantages that the analysis equation is obtained by building the construction mechanical model in the shaft lifting and controlling sinking process, the limit sinking depth Hmax of the shaft is finally obtained by calculating the vertical suspension force T, and reference is provided for open caisson parameter design.

The invention relates to the technical field of hydraulic engineering construction, and discloses a shaft excavation ground surface settlement monitoring device which comprises a base, and a lifting mechanism is installed at the top of the base and used for lifting the position of a top monitoring structure; the rotating mechanism is mounted at the top of the lifting mechanism and is used for adjusting the direction of the top monitoring structure; and the monitoring mechanism is mounted at the top of the rotating mechanism and is used for monitoring ground surface settlement. The method comprises the following steps: step S1, a measuring point laying step; step S2, a data acquisition step; step S3, a data transmission step; s4, a data analysis and early warning step; and S5, a feedback and control step. According to the invention, through the combined application of the static force level gauge and the micro-differential pressure liquid level sensor and the precise positioning of the lifting mechanism and the rotating mechanism, continuous and high-resolution relative elevation measurement can be carried out on the local area around the vertical shaft.

The invention discloses a safety protection system for vertical shaft construction. The safety protection system comprises a vertical shaft; the safety disc is horizontally arranged in the vertical shaft in a manner of moving up and down and is used for preventing articles from falling into the shaft bottom; the lifting driving assembly is used for driving the safety disc to do lifting motion in the vertical shaft; the guide mechanism is arranged between the shaft wall of the vertical shaft and the safety disc and used for guiding the safety disc to stably ascend and descend in the vertical direction of the vertical shaft; and the locking mechanism is arranged between the safety disc and the guide mechanism, and when the safety disc falls at a speed exceeding a certain speed, the locking mechanism can cooperate with the guide mechanism to prevent the safety disc from falling. The beneficial effects of the invention are that personnel safety and equipment completeness can be guaranteed at the same time.

The invention discloses a deep-shaft long-distance shield tunnel positioning measurement structure and measurement method, and relates to the technical field of tunnel construction, the deep-shaft long-distance shield tunnel positioning measurement structure comprises a long-distance tunnel excavated along the underground and two deep shafts communicated with the tunnel, a fixed support is arranged at the wellhead position of each deep shaft, and a steel rope is vertically put down by the fixed support towards the direction of each deep shaft; the fixing support is movably provided with a positioning frame, the positioning frame is provided with a positioning hole for a steel rope to penetrate through, the fixing support is provided with a leveling assembly for keeping the positioning frame horizontal, the fixing support is provided with a first driving part for driving the positioning frame to move, and the side, close to the deep shaft, of the positioning frame is provided with a guide assembly corresponding to the steel rope. And infrared distancers facing the positioning frame are arranged on the fixing bracket on the two sides of the positioning frame. The first driving piece drives the positioning frame to move, the position of the steel rope in the horizontal plane of the deep shaft is rapidly adjusted, the adjusted position of the steel rope is measured and calculated again through the infrared distance meter, and it is guaranteed that the vertical datum line of directional measurement is remeasured accurately.

The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly discloses a vertical shaft inlet structure with a broken line weir, which comprises a ventilation column and a plurality of drainage plates, the ventilation column is arranged in the center of the shaft; the multiple drainage plates are arranged in the circumferential direction of the ventilation column, and an overflowing area is formed between every two adjacent drainage plates; one end of each drainage plate is fixedly connected with the ventilation column, the other end of each drainage plate is fixedly connected with the shaft wall of the vertical shaft, and the edge of each drainage plate is provided with a broken line weir. The drainage plates are arranged, so that part of water flow can be guided to the center of the vertical shaft, and the overflowing space is increased. Meanwhile, water flow can not only enter the vertical shaft along the well wall, but also overflow into the vertical shaft along the broken line weir at the edge of the drainage plate, so that the overflowing width is greatly increased, and the overflowing capacity is improved. The vertical shaft inlet structure with the broken line weir further has the advantages of being simple in structure, easy to construct and the like.

The present invention discloses a water quality and water level monitoring device for groundwater exploration, belonging to the technical field of water quality and water level monitoring, including a main housing. An auxiliary driving assembly for driving the movement in a shaft is arranged on the outer surface of the main housing, and a monitoring main body is connected to the bottom of the main housing. In the present invention, by arranging the auxiliary driving assembly, the first motor drives the main housing to rise or fall in the shaft through a driving shaft, a driving wheel, a transmission belt, a driven wheel, a second rotating shaft and a driving wheel, reducing the load of the traction cable, avoiding the breakage of the traction cable, improving the lowering and recovery efficiency of the device in the shaft, and even if the traction cable breaks midway, the device can still be recovered through the operation of the driving wheel, reducing losses. At the same time, the driving shaft drives the drill bit to rotate through a sixth bevel gear and a fifth bevel gear. During recovery, if the shaft is accidentally blocked by sundries, the self-rotation of the drill bit can achieve automatic obstacle clearance, reducing the recovery difficulty of the device.

The utility model discloses a diving tubular pump with fully-adjustable shaft overflowing blades, and relates to the technical field of water conservancy projects. The device comprises a diving tubular pump, the left end of the diving tubular pump is connected with a round-square gradually-changing flow channel through a left-end expansion joint, and the right end of the diving tubular pump is connected with a vertical shaft flow channel through a right-end expansion joint; a vertical shaft is arranged in the vertical shaft flow channel; an asynchronous submersible motor, a planetary gearbox, a thrust bearing box, a pump section hydraulic model and a hollow adjusting shaft are sequentially arranged in the submersible tubular pump from left to right, and the right end of the hollow adjusting shaft extends into the vertical shaft to be connected with a built-in synchronous hydraulic adjusting mechanism. Diffusion type guide vanes are not arranged any more, excellent conventional pump section hydraulic models, such as south-to-north water diversion series and the like, which are already checked and affirmed can be directly utilized, and meanwhile dynamic operation full adjustment of the vanes of the submersible tubular pump is achieved.

The application discloses a well wall supporting device and a construction method thereof, which comprises a hinged seat, two groups of hinged rods movably arranged on the two sides of the hinged seat, a connecting piece arranged at the end of one group of the hinged rods, a buckling piece adapted to the connecting piece arranged at the end of the other group of the hinged rods, and an adjusting sliding groove arranged on each of the two groups of the hinged rods. When the device is used, the connecting piece and the buckling piece are used to connect the two groups of the well wall supporting devices to be arranged in a ring shape around the well wall, then a hydraulic device is connected to the piston rod, the internal pressure of the hydraulic adjusting part is increased, a mutual resisting ring structure is formed between the supporting devices, the resisting plate is in contact with the well wall by driving the hydraulic telescopic pipe as the internal pressure of the hydraulic adjusting part continuously increases, and the well wall is supported. The above structure has good adaptability, can be adapted to different diameter use scenes, and effectively improves the overall operation efficiency.

The utility model discloses a pipe wall seepage water spiral collecting and discharging system for vertical shaft TBM tunneling construction, and belongs to the technical field of vertical shaft construction. A pipe wall seepage water spiral collecting and discharging system for vertical shaft TBM tunneling construction comprises water collecting tank sections which are provided with fixing openings and installed on the inner wall of a vertical shaft at the inclination angle of 45 degrees, a water collecting tank is installed on the inner wall of the vertical shaft of the water collecting tank section located at the tail end, a water suction pump is arranged in the water collecting tank, and the water suction pump pumps accumulated water out of the vertical shaft through a drainage pipeline. A T-shaped connector is formed between every two adjacent water collecting tank sections, a first silica gel strip is installed at each connector, the multiple water collecting tank sections are connected to form a spiral shape, water can be concentrated and guided to the bottommost water collecting tank, a water suction pump arranged inside is automatically started, accumulated water is pumped out of a vertical shaft through a drainage pipeline, and the water collecting tank is arranged at the bottom of the vertical shaft. The whole process can be automatically operated, accumulated water is timely drained, and the influence on the construction environment is avoided.

The utility model belongs to the technical field of wall protecting pipes, and particularly relates to a special connecting wall protecting pipe for a special anti-penetrating thick-wall deep well, which comprises a pipe, a pipe step and an inner wall lantern ring, one end of the pipe is pushed outwards through a die and expanded outwards to form the pipe step, and the pipe step is matched with a pipe body of the pipe in a matched mode. A step-shaped gap for embedding the inner wall lantern ring in a matched manner is formed between the pipe step and the end part of the pipe inserted into the pipe step, and the pipe, the pipe step and the inner wall of the inner wall lantern ring are connected to form a smooth curved surface. After the two pipes are connected in an inserted mode through the pipe steps, the inner wall lantern ring embedded between the two pipes enables the inner walls of the two pipes to be connected to form a smooth and continuous curved surface, and therefore the situation that the pump is scraped or the safety of the pipes is affected when the pump is put down and taken out is avoided.

A modular platform system for vertical ore stope mining, comprising: a top platform having an access opening formed therein for accessing a raise opening of a raise above a stope of a mine; an equipment deck adapted to receive equipment; and, at least one winch having at least one respective cable coupled thereto, the at least one winch mounted on the top platform, the at least one cable extendable through the access opening, the at least one cable having at least one respective cable end coupled to the equipment deck; wherein the at least one winch is operable to move the equipment deck and the equipment between a raised position proximate a top of the raise at the top platform and a lowered position proximate a bottom of the raise at a top of or within the stope.

The invention discloses a method for repairing a shaft of a coal mine non-stop air return vertical shaft, which comprises the following steps of: firstly, carrying out water cutting and punching on an anti-explosion cover, installing a lifting system, and then assembling an assembled fixed disc and a special-shaped construction hanging scaffold in the shaft underground by utilizing a personnel safety channel and by virtue of protection of a steel wire rope; well wall broken points and concentrated water spraying points which are explored in advance are reinforced and blocked; and fifthly, after the air return vertical shaft is repaired, under the protection of a lifting system, the special-shaped construction hanging scaffold and the assembly type fixing disc in the shaft are disassembled in a blocking mode and conveyed out of the shaft through a personnel safety channel, and finally a ring fire reinforcing mode is adopted for sealing and reinforcing a drilled hole of the anti-explosion cover. The unfavorable conditions of high air speed, high dust, high noise and high gas of the air return vertical shaft can be overcome, the whole repairing process can ensure that the mine does not stop working, the problems that a traditional coal mine shaft is low in repairing efficiency and multiple in potential safety hazard can be solved, and meanwhile high efficiency, safety and adaptability are achieved.

The present invention discloses a mechanical wall cutting and filling mining method for steeply inclined thin ore veins, comprising the following steps: S1, dividing the steeply inclined thin ore vein into a middle section and ore blocks, and excavating a pedestrian material riser within the pillars between the ore blocks; S2, excavating an intra-vein transport tunnel, and then excavating a pedestrian material riser upward through the intra-vein transport tunnel to construct a stope connecting road; S3, using a milling machine to mine from one side to the other, without wall cutting after the first layer is mined, and after the second layer is mined, the surrounding rock is wall cut, and a false bottom is laid in the first layer, leaving a chute for the road; after mining the third layer, a scraper enters the stope to transport ore to the chute for unloading, and after mining is completed, the surrounding rock is wall cut, and then filling is carried out to reserve space for the scraper to operate in the next layer; S4, continuously performing each layer mining operation upward to complete the mining of each segmented ore body. The filling mining method of the present invention solves the technical problems of high mining production costs and lack of operational safety in the prior art.

The application provides a tankway joint width detection vehicle and a detection method. The tankway joint width detection vehicle comprises a vehicle frame and a data processing control unit. One side of the vehicle frame is provided with wheels, a signal emitting head A and a signal receiving head A. The signal emitting head A and the signal receiving head A are arranged along the traveling direction of the vehicle frame. Straight line signals emitted by the signal emitting head A can be reflected to the receiving end of the signal receiving head A through the side wall of the tankway. The signal emitting head A is signal connected with the signal output port of the data processing control unit, and the signal receiving head A is signal connected with the signal input port of the data processing control unit. According to the application, the data processing control unit automatically reads the time interval of signal disconnection of the signal receiving head and calculates the joint width H. The joint width H is rapidly detected, the detection efficiency is improved, the workload and the data volume are small, and the manpower and equipment cost are saved.

The utility model relates to a pre-supporting device for reservoir vertical shaft excavation. The pre-supporting device comprises an annular supporting assembly and a plurality of radial supporting assemblies. The annular supporting assembly comprises a plurality of supporting units, the multiple supporting units are sequentially connected end to end to define a rotating cavity, the multiple radial supporting assemblies are all arranged in the rotating through cavity, the outer walls of the multiple radial supporting assemblies abut against the inner circumferential wall of the rotating through cavity, and the multiple radial supporting assemblies are arranged at intervals in the center line direction of the rotating through cavity; the multiple supporting units are arranged to be spliced into the annular supporting assembly, when the whole pre-supporting device is transported, the multiple hollow supporting units are directly transported, concrete is filled when the pre-supporting device reaches a reservoir, the firmness of the pre-supporting device is not affected, the carrying weight is reduced, and transportation is convenient.

The present invention relates to the technical field of underground pipeline construction, and provides a large-diameter pipe withdrawal device and a pipe withdrawal method. In the large-diameter pipe withdrawal device, the machine head connection part is connected to the inside of the pipe jacking machine head. The power jacking part is slidably connected to the base guide rail of the working shaft. One end of the traction member is connected to the machine head connection part. The other end of the traction member extends from the pipe jacking machine head through each pipe withdrawal section to the working shaft and is connected to the power jacking part. The power device is used to drive the power jacking part to slide along the base guide rail, so as to drive the traction member to drag the pipe jacking machine head to extrude each pipe withdrawal section and withdraw the pipe into the working shaft. Through this structural arrangement, the original power device is installed in reverse, so that the power device pushes the power jacking part in the reverse direction. Furthermore, the power jacking part drives the traction member to drag each pipe withdrawal section and the pipe jacking machine head out of the pipe withdrawal pipeline one by one through the machine head connection part. The structure of the large-diameter pipe withdrawal device is relatively simple and the construction is relatively convenient.

The utility model relates to a vertical shaft deslagging device, and relates to the technical field of vertical shaft construction. The vertical shaft deslagging device comprises a derrick, a sliding groove, a spraying pipe, a spraying head and a water pipe, the sliding groove, the spraying pipe and the water pipe are all arranged on the derrick, the spraying pipe is located above the sliding groove, the sliding groove is obliquely arranged, the length direction of the spraying pipe is perpendicular to the length direction of the sliding groove, and the length of the spraying pipe is larger than the width of the sliding groove. The nozzles are arranged on the spraying pipe and face the sliding groove, and the water pipe is connected with one end of the spraying pipe. Due to the fact that the water pipe and the spraying pipe are arranged on the derrick, when the hoisting bucket dumps muck to the sliding groove, water injected into the spraying pipe through the water pipe can be sprayed to the sliding groove through the spraying head, the length of the spraying pipe is larger than the width of the sliding groove, the sprayed water can restrain flying dust from being generated above the sliding groove, environmental pollution during operation is reduced, and the protective effect on operators is achieved.

The utility model relates to a mine mouth reinforcing and sealing device for blasting in a mine, which comprises a mounting frame and a reinforcing and sealing assembly, a cylinder drives a lifting column to descend, the lifting column drives a second hinge seat to descend, the second hinge seat drives a first hinge seat to move through a hinge plate, and the first hinge seat drives a positioning column to move. A positioning column drives a limiting block to move in a limiting groove, the positioning column extends out of a containing hole and is inserted into the inner side wall of a mine through the tip end part, the reinforcing sealing assembly is positioned and fixed, device deviation caused by impact during internal blasting is avoided, the reinforcing sealing effect is improved, a reset spring is extruded through a protection plate, and a damping T-shaped column is driven to move; the damping T-shaped column drives the damping plate to move in the damping groove, the damping liquid has a damping effect on the damping plate, it is guaranteed that the reset spring can return to static balance, generated impact force is buffered, and the impact force is prevented from affecting use safety of the telescopic column.

The invention provides a transformation method, a lowering device and a lowering method based on an air shaft, and relates to the field of constructional engineering construction.By transforming head sheaves, guide wheels and steaders left in the air shaft and adjusting the positions of the head sheaves, the guide wheels and the steaders, the head sheaves, the guide wheels and the steaders meet the hoisting requirement of large equipment, the equipment left in the air shaft is fully utilized, and the hoisting efficiency is improved. The end face of the air shaft is large, so that the air shaft has the effect of lowering large-scale equipment, the disassembly degree of the large-scale equipment is reduced, the difficulty of assembling at the shaft bottom in the later period is avoided, in addition, the structure of the round girder is optimized, self-balance can be achieved when the round girder inclines slightly, and the service life of the round girder is prolonged. And the situation that large-scale equipment is collided in the lowering process and breakage occurs due to the fact that part of steel wire loads are exceeded is avoided.

The invention relates to a method and device for reinforcing a well mouth earth surface strongly-weathered rock stratum of a deep shaft. In the method for reinforcing the well mouth earth surface strongly-weathered rock stratum of the deep shaft, the ground is cleaned and leveled. A plurality of foundation piles are arranged in the circumferential direction of a wellhead of the deep vertical shaft, extend along the axis of the deep vertical shaft and partially extend into the strongly weathered rock stratum. The sides, close to the axis of the deep shaft, of the foundation piles form an inner contour line, circles of the foundation piles form a center loop line, and the inner side face contour line of the deep shaft is located between the inner contour line and the center loop line so as to determine the inner side face contour line of the deep shaft. And counter-pulling from the bottom of the deep shaft to the wellhead along the inner side profile of the deep shaft. According to the method, after the stable foundation piles are formed, the outline of the deep shaft is defined, then counter-pulling is conducted in the outline, the structural stability is guaranteed, the counter-pulling cutting part is mainly the structure of the foundation piles, therefore, the situation that loose blocks fall off is prevented, and the construction efficiency, safety and stability of the deep shaft are improved.

The present invention discloses an adjustable steel support structure and a suspension assembly method for shaft support, which includes a plurality of adjustable steel support units adapted to the inner contour of the shaft, the adjustable steel support units being arranged in multiple layers from top to bottom relative to the shaft, and adjacent layers being connected to each other by a suspension mechanism; the adjustable steel support units include a plurality of sections of arc-shaped I-beams, and adjacent sections of arc-shaped I-beams are connected by an adjustable distance joint structure to form a circular steel support capable of expanding and deforming in diameter. The present invention has a simple and reliable structure, and is convenient and quick to operate. By using the circular steel supports arranged in multiple layers and capable of expanding and deforming in diameter, the initial support can be ensured to be in close contact with the excavation surface of the shaft wall, effectively improving the structural stability of the shaft; in addition, the suspension assembly construction of the circular steel supports by the suspension mechanism can simplify the construction process, improve construction efficiency and construction safety, and effectively strengthen the vertical connection stiffness of the upper and lower layers of the circular arc-shaped steel supports.

A rack-and-gear type well sinking platform system for ultra-deep vertical shafts and its usage method are disclosed. The system comprises: a rack-and-gear mechanism including a strip support plate and racks mounted on the strip support plate; a gear climbing mechanism installed at the edge of the climbing support plate, including a connecting frame and a drive device; the connecting frame is mounted on the climbing support plate via a connecting assembly; the drive device is mounted on the connecting frame, and its output end is equipped with a drive gear; the drive gear meshes with the racks; and a support shoe stabilizing mechanism installed at the edge of the support shoe, including an inner guide support assembly and an outer support shoe stabilizing assembly, the outer support shoe stabilizing assembly including a support shoe cylinder and a stabilizing support shoe. The method utilizes the gear climbing mechanism and the support shoe stabilizing mechanism to fix the well sinking platform's position within the well wall; the gear climbing mechanism drives the entire well sinking platform to move up and down within the well wall. This invention enables the well sinking platform to autonomously and continuously rise and fall and be fixed at any position within the well, meeting the construction requirements of ultra-deep vertical shafts.

The utility model relates to the technical field of locks, in particular to a limited space illegal operation blocking device which comprises a lock cylinder assembly, a protection assembly and a squeezing and pushing assembly, the lock cylinder assembly comprises a mandrel, and the squeezing and pushing assembly can push the lock cylinder assembly to release the locking state of the lock cylinder assembly under the action of external force. And the protection assembly can coaxially rotate with the core shaft when the lock cylinder assembly is in an unlocking state. By arranging the protection assembly, a second defensive line can be arranged in the vertical shaft, the situation that personnel without permission enter the vertical shaft illegally, danger is caused to underground personnel, and underground facilities are damaged is prevented, and the safety of the vertical shaft facilities is improved; by arranging the lock cylinder assembly and the extruding and pushing assembly, physical locking and unlocking of the lock are achieved, power supply is not needed, an unlocking command is remotely received in cooperation with an intelligent key, the operation authority of an operator is ensured, and wrong operation is avoided.

The invention relates to the technical field of well mouth protection, in particular to well mouth reinforcing equipment for a mine, which comprises a mounting ring, an annular air bag, a mounting plate, waterproof cloth, a limiting ring and the like, an annular air bag for supporting and reinforcing the well wall is arranged on the mounting ring; a limiting ring used for forcing the annular air bag to expand outwards is arranged on the inner side of the annular air bag. Waterproof cloth used for preventing surface water flow from flowing backwards is bonded to the surface of the mounting ring through waterproof glue, and a mounting plate is bonded to the other end of the waterproof cloth through waterproof glue. The annular air bag is inflated through the air pump, so that the annular air bag expands and extrudes and tamps the well wall, temporary reinforcement of the well mouth body is rapidly achieved, and collapse of the well mouth body is effectively avoided. Meanwhile, the limiting ring is used for limiting the expansion direction of the annular air bag, so that the annular air bag can only expand outwards, the annular air bag is prevented from expanding towards the center of the wellhead body, the protection effect of temporary supporting is improved, and the stability of the well wall is enhanced.

The present invention belongs to the technical field of tunnel support structures, specifically a corrugated steel plate support structure used in an anchor-sprayed inverted vertical shaft, comprising a corrugated steel plate main body, a plurality of connecting holes being provided on the outside of the corrugated steel plate main body, a clamping rod being fixed on the outside of the corrugated steel plate main body and at the wave crest, a clamping groove being provided on the outside of the corrugated steel plate main body and at a side away from the clamping rod, which is adapted to the clamping rod; a sliding groove being provided inside the clamping rod, a guide rod being slidably connected to the sliding groove, and a chamfer being provided on one end of the clamping rod close to the guide rod; storage capsules being fixed on the upper and lower sides of the inner wall of the clamping groove, and hot-melt adhesive particles being fixed inside the storage capsules; through the design of the clamping rod and the clamping groove, the connectivity between the plurality of corrugated steel plate main bodies is increased, thereby improving the effect of the corrugated steel plate in the support process, avoiding damage caused by excessive pressure on a single corrugation, and further improving the stability of the corrugated steel plate support.

The utility model belongs to the technical field of hanging scaffold structures, and particularly relates to a hanging scaffold structure for installing mine shaft equipment, which comprises a lower-layer hanging scaffold, a middle-layer hanging scaffold, an upper-layer hanging scaffold, a horn mouth cylinder and a stand column, the surfaces of the middle-layer hanging scaffold and the upper-layer hanging scaffold are respectively connected with a horn mouth cylinder in a penetrating manner, the bottom sides of the middle-layer hanging scaffold and the upper-layer hanging scaffold are respectively connected with a limiting strip, the inner wall of the limiting strip is provided with a mounting plate, the lower surface of the mounting plate is provided with a hanging scaffold fixer, one side of the mounting plate is provided with a telescopic rod, and the telescopic rod is arranged on the lower surfaces of the middle-layer hanging scaffold and the upper-layer hanging scaffold. According to the utility model, when the telescopic rod runs, the hanging scaffold fixer can be driven by the mounting plate to transversely move, and when the hanging scaffold fixer transversely moves to the wall of a mine, the stability of the hanging scaffold structure can be ensured by the hanging scaffold fixer, so that the problem that the hanging scaffold fixer cannot stabilize the hanging scaffold structure due to the large size of the mine can be avoided.

The utility model discloses a water stop device of a pipe jacking machine, which belongs to the technical field of pipe jacking machines and comprises a well wall, a hole is arranged on one side of the well wall, a mounting plate is mounted on one side of the well wall, an inner ring is fixedly sleeved in the middle of the mounting plate, and the end of the inner ring extends to an inner cavity of the hole. The inner side of the inner ring is sleeved with pipe jacking machine equipment. According to the utility model, the smooth sleeve and the sealing ring are matched to seal the pipe push bench equipment, the oil pump is utilized to continuously pump out lubricating oil in the oil storage tank, the lubricating oil is guided into the oil distribution groove from the oil guide pipe, and the lubricating oil in the oil distribution groove is extruded out from the oil distribution hole; the smooth sleeve and the sealing ring are lubricated through lubricating oil guided out of the oil distribution holes, the friction force among the smooth sleeve, the sealing ring and the pipe jacking machine equipment is reduced, and the situation that the sealing effect is affected due to abrasion among the smooth sleeve, the sealing ring and the pipe jacking machine equipment is avoided.

A method for monitoring the safety status of coal mine shafts based on blockchain technology obtains analysis results of weak areas in the shaft wall; identifies weak areas on the shaft wall that may cause cracking; sets monitoring nodes at different monitoring layers and monitoring directions; sets up blockchain nodes, connects multiple monitoring nodes and blockchain nodes at different monitoring directions in the same monitoring layer, and forms a private chain for the monitoring layer; connects multiple blockchain nodes underground and the first block on the surface to establish a blockchain shaft wall monitoring system; activates smart contracts; analyzes the status of each blockchain node through blockchain accounting nodes and a blockchain monitoring cloud platform to obtain key status information; determines whether the key status information is within a safe range; and forms a shared cloud monitoring platform for multiple coal mine shafts on the blockchain monitoring cloud platform. This method can achieve real-time monitoring of shaft safety status based on blockchain technology, with relatively comprehensive monitoring content, shared by multiple people, and authentic and valid data.