176results about How to "Shorten working time" patented technology

The application discloses a kind of based on task partition's shipborne unmanned aerial vehicle navigation beacon group path planning method, belong to offshore navigation beacon inspection technical field.The method first obtains navigation beacon, mother ship, obstacle and unmanned aerial vehicle constraint parameter, is divided into navigation beacon by recursion K-means and is checked by threefold verification of operation radius, load, endurance, and is recursively subdivided if unqualified;Second generation mother ship candidate residence point and correct to safe water area, use A* algorithm to plan the global transfer path of mother ship, model as closed loop traveling salesman problem in cluster inspection, to improve self-organizing mapping neural network is solved unmanned aerial vehicle path in combination with tabu search.The system contains data input, task partition and the like module.The scheme makes mother ship only stay near task cluster, greatly shortens voyage, reduces risk, improves inspection efficiency and engineering feasibility.

The utility model relates to the field of electric power system and high voltage switch equipment discloses vacuum circuit breaker with signal feedback mechanism, including arc extinguishing chamber, the bottom fixedly connected with mechanism box of arc extinguishing chamber, the outside of mechanism box is provided with quick -witted connection mechanism, the top fixedly connected with voltage transformer of quick -witted connection mechanism, the outside fixedly connected with base of mechanism box, the outside of base is provided with quick -witted break mechanism, quick -witted connection mechanism includes support connecting plate, the outside fixedly connected with air cylinder no.

Disclosed is a gripping device using an air conduit. This device can quickly complete the "release" of the gripping state of an article. After compressed air for gripping flows into a first pipe, the compressed air is accumulated in a side wall expansion space of a cylindrical air conduit, and the compressed air is moved through a second pipe and the air conduit, which are opened by a reverse valve, to be instantaneously discharged to the outside. Therefore, the "release" of the article can be quickly completed. Finally, in a transfer operation in which the gripping, transfer, release, and reset processes of the article are repeatedly performed, the operation time can be greatly shortened.

The invention discloses an electric energy meter tail disassembling and separating process, and relates to the technical field of electric energy meter tail disassembling, the electric energy meter tail disassembling and separating process comprises the steps of terminal nut disassembling, meter tail screw disassembling, terminal disassembling, meter tail part recycling and the like, under the assistance of a CCD camera, automatic disassembling of the electric energy meter tail can be achieved, the whole disassembling process runs on a box body in a closed-loop mode, and the disassembling efficiency is improved. The electric energy meter tail disassembling device can complete and continuously disassemble the meter tail without manual participation, improves the disassembling efficiency, and solves the problems that in the current industry, a mainstream disassembling mode is still manual disassembling, and in the disassembling process of the electric energy meter tail, an operator needs to manually disassemble fixing bolts and large and small terminals one by one, and the disassembling time is shortened. Due to the disassembling mode, the disassembling speed completely depends on the proficiency degree of manual operation, the fluctuation of the disassembling efficiency is large, and the stable and efficient production target is difficult to achieve.

The utility model belongs to the technical field of metal pipe machining, and particularly relates to an anti-deformation elastic lining device for bending a copper pipe. The device comprises a spiral spring used for being inserted into a to-be-bent area in a copper pipe and traction structures arranged at the two ends of the spiral spring. The pitch of the spiral spring is 0; or, the pitches of the spiral spring from the middle to the set number of turns at the two ends are 0, the pitches within the set number of turns at the two ends are gradually changed from 0 to 1 mm from the set number of turns at the two ends to the two ends, and the set number of turns is 3-5; the difference value between the outer diameter of the spiral spring and the inner diameter of the copper pipe to be bent ranges from 1 mm to 3 mm. The elastic modulus of the spiral spring is greater than the yield strength of the copper pipe to be bent; the traction structure is used for being connected with an external traction tool. According to the copper pipe bending device, the ovality and the wall thickness reduction rate of a bent copper pipe can be reduced, the single-time bending operation time is shortened, and the copper pipe bending device can be repeatedly used.

The utility model relates to a desizing, scouring and bleaching combined machine for linen fabric, which comprises a box body, a guide roller and a cloth swinging assembly are arranged in the box body, the cloth swinging assembly comprises a cloth swinging roller and a swinging part, the cloth swinging roller is in slip connection with the box body, the swinging part is arranged in the box body and is connected with the cloth swinging roller, and a cloth beating roller is arranged in the box body; after entering the box body, the cloth is sequentially wound around the guide roller and the cloth swinging roller to be padded in the treatment liquid, at the moment, the swinging piece drives the cloth swinging roller to move so as to drive the cloth to swing in a reciprocating mode, and the cloth beating rollers on the two sides of the cloth beat the cloth in sequence while swinging. And the material distribution operation time is shortened.

This invention discloses an oil-water-gas well reservoir expansion and sealing jet fluid production and sand removal device, relating to the field of oil production technology. The device includes a central tube and further comprises: an expansion assembly located around the central tube, with its lower end positioned on the central tube and its upper end capable of sliding on the central tube, used for radial expansion under the drive of a hydrodynamic fluid; and a jet nozzle located below the central tube and below the expansion assembly, used to spray hydrodynamic fluid, creating a negative pressure zone in the spray area to absorb formation fluid. This integrated design combines the expansion assembly and the jet nozzle, allowing for the completion of both annular sealing and jet fluid production and sand removal functions in a single well run, avoiding the cumbersome process of two well runs required by traditional technologies and shortening the operation time.

The utility model relates to the technical field of couplings, in particular to a spraying device for production and processing of universal couplings, which comprises an operating platform and a front frame, two groups of box bodies are mounted on the operating platform, guide plates butted with the two groups of box bodies are fixed on the front frame, the tops of the box bodies are communicated with an external spraying device, and inclined guide pipes are fixed on the back surfaces of the box bodies. An overturning assembly and a material pushing assembly are further mounted in the box body; a feeding assembly in butt joint with the guide pipe is further installed on the back face of the operation table. The overturning assembly comprises two sets of rollers rotationally installed in the box body, and a driving end for driving the rollers to rotate is installed on the operation table. According to the spraying device for production and processing of the universal coupling, the overturning assembly drives the belt transmission set through the belt driving device, synchronous rotation of two sets of rollers is achieved through meshing of a driving gear and a driven gear, a workpiece is automatically overturned in the box body, manual fixing or angle adjusting is not needed, manual intervention is reduced in the whole process, and the operation time is greatly shortened.

The application discloses an automatic replacement system of color photovoltaic adhesive film, and particularly relates to the photovoltaic power station operation and maintenance technical field, comprising a sensing and detecting module, a decision control module, an execution operation module, a material processing and supply module and a safety auxiliary module; the sensing and detecting module is used for acquiring the position, contour and surface state data of the photovoltaic module; the application constructs a three-dimensional grid model of the module through the decision control module, realizes intelligent scoring and global path optimization of the work unit based on a rule base, and generates an optimal work sequence; through adaptive process parameter adjustment in the execution operation module, the hot air power and the winding tension are dynamically adjusted according to the surface color, temperature and defect characteristics of the module, so that the old adhesive film peeling quality and the new adhesive film laying precision are significantly improved; the whole-process automation from detection, decision, execution to quality review is realized, the replacement efficiency and quality consistency are effectively improved, and the work safety is ensured.

A foundation pit slope support fixing system and a fixing method thereof, the support fixing system comprising a fixing device and a drilling device; the fixing device comprising an anchoring body and an anchor cable, wherein the anchoring body comprises a conical anchor head, one end of the anchor cable is rotationally connected with the rear side of the anchor head, the drilling device comprising a fixing frame and a guide plate on the upper side of the fixing frame, a driving box is slidably arranged on the guide plate, a hollow drill cylinder penetrating through front and back is rotationally arranged on the driving box, the front end of the drill cylinder is inserted and clampedly connected with the rear side of the anchor head, and the anchor cable is located in the drill cylinder; a jetting head is arranged on the rear side of the driving box and inserted into the drill cylinder, the anchor head and the outer ring of the drill cylinder are respectively provided with first and second spiral leaves, and when the drill cylinder is drilled, water injection work of the jetting head can directly drive the anchoring body into the interior of the slope; when the drill cylinder is withdrawn, the anchoring body can be left in the interior of the slope, and grouting work of the jetting head can complete the fixing work of the anchoring device in one drilling, thereby shortening the foundation pit support construction time and significantly improving the construction speed.

The utility model discloses a rapid round steel butt joint device which is mainly composed of a shell, clamping mechanisms symmetrically arranged at the two ends of the shell and a driving mechanism located in the shell. The clamping mechanism is connected with the shell in a sliding mode through a connecting sliding block and comprises a base fixed to the connecting sliding block, a lower arc-shaped base and an upper arc-shaped base on the base are connected in a hinged and threaded mode, and a clamping screw and an arc-shaped pressing block are arranged to stably clamp round steel. The driving mechanism comprises a driving rack fixed to the connecting sliding block, a driving gear meshed with the driving rack and connected with the driving rack through a rotating shaft, and a rotating disc. According to the device, through the ingenious structural design, on the aspect of butt joint precision, position deviation can be effectively reduced, the butt joint coaxiality of round steel is improved, and the high-end manufacturing requirement is met; in terms of working efficiency, the position of round steel can be rapidly adjusted, and working time is shortened; and in the aspect of safety, the round steel is prevented from sliding off, the device adapts to complex operation environments, and the remarkable application value in industrial production is achieved.

The application relates to the technical field of warehouse management and intelligent logistics, and discloses a warehouse position allocation strategy optimization method and system based on reinforcement learning, wherein the method comprises the following steps: constructing a warehouse state vector; generating a warehouse position allocation action set of a commodity unit SKU, and screening and migrating the action by adopting a double-layer policy gradient constraint mechanism; collecting real-time operation indexes and outputting real-time reward signals based on a three-dimensional engine simulation environment; constructing an experience four-tuple and performing policy iteration training by using a deep Q network; and performing closed-loop feedback optimization. Compared with the prior art which depends on static rules or heuristic algorithms for SKU warehouse position allocation, especially in the multi-category large warehouse scene, under the conditions of high SKU correlation and frequent combination picking, it is difficult to realize overall picking efficiency optimization. Since the application is driven by a reinforcement learning driven correlation clustering mechanism, dynamic adaptive cluster type warehouse layout optimization is realized, and the operation efficiency of the warehouse system is improved.

The present application relates to the technical field of sludge treatment, in particular to a sludge suction dredging device for landscaping and a using method thereof. The device comprises a suction machine and a chassis connected with the liquid inlet end of the suction machine, the inside of the chassis is provided with a suction port assembly for regulating the size of the liquid inlet, the suction port assembly at least comprises two symmetrical elastic rods fixedly connected with the inner wall of the chassis, and the opposite ends of the two elastic rods are rotatably connected with a disturbance plate, the two symmetrical disturbance plates are rotatably arranged in the inside of the chassis, the compression and rebound force generated in the inside of the elastic rod resists the "eight" shape formed by the rotation of the surface of the two symmetrical disturbance plates, so that the flow rate of the sludge is accelerated when the sludge passes through the liquid inlet, and the impact force generated when the sludge enters the liquid inlet opened in the side wall of the chassis is buffered, the rotation shaft of the disturbance plate is connected with an auxiliary disturbance assembly, the elastic rod slides in the inside of the chassis, pushes the disturbance plate to rotate in the inside of the chassis, and regulates the size of the liquid inlet of the chassis.

This invention discloses a wind turbine main shaft brake locking device and method for automatic positioning. The device includes a first pin hole on the wind turbine main shaft, to which a flange is connected. A second pin hole is located within the flange. A limiting member is located on the windward side of the second pin hole, at the lower edge of the second pin hole along the rotation direction. It also includes a locking pin sleeve retractably connected to a bearing housing. The locking pin sleeve contains a retractable locking pin, which can enter or exit the second pin hole by extending or retracting. The guiding action of the limiting member achieves automatic alignment between the locking pin and the pin hole, eliminating the need for repeated manual adjustments or waiting for the main shaft to rotate to a specific position, significantly reducing locking operation time. The size adaptation and collinear design of the semi-cylindrical ring and the locking pin sleeve enable automatic positioning of the locking pin and the pin hole, eliminating the need for repeated manual adjustments or waiting for the main shaft to rotate to a specific position.

This invention discloses a ladle bottom with a partition wall structure for steel or iron ladles, comprising a permanent layer and a working layer sequentially cast into the bottom. A partition wall is provided between the permanent and working layers, dividing the bottom into multiple independent areas. The lower part of the partition wall is embedded in the permanent layer, and the upper part is embedded in the working layer. Bottom-blown permeable bricks are also provided on the bottom, placed within the corresponding independent areas. This invention reduces destructive operations on the entire ladle bottom, reduces refractory material consumption and operation time, and also helps improve the integrity of the furnace lining structure. It can reduce the amount of furnace bottom castable, increase construction speed, improve the safety of steel or iron ladle operation, and reduce the occurrence of accidents.

This invention relates to the field of production lines and discloses a continuous conveyor belt production line, comprising at least one conveyor frame, with two transmission lines arranged opposite each other on the upper part of the conveyor frame. Products flow to different workstations via the two transmission lines. A lifting and positioning mechanism and a light source lifting mechanism are arranged on the opposite outer sides of the conveyor frame. The lifting and positioning mechanism includes a lifting drive, a lifting guide, and a positioning plate. The lifting drive is located on the outer side of the conveyor frame, and its working end is connected to the positioning plate via the lifting guide. The positioning plate passes through the conveyor frame and is located between the two transmission lines. The lifting drive moves the positioning plate along the lifting guide to lift the product, while simultaneously preventing gaps below to allow the next product to be conveyed normally. This solution has a simple structure and does not affect the flow of subsequent products to the next process while the previous process is in operation, thus improving work efficiency.

The present application belongs to the technical field of oil and gas downhole operation equipment, and discloses a differential pressure remote control downhole plugging valve capable of being tied back, which comprises an outer cylinder, a shear spindle, an upper rupture disc and a lower rupture disc, the top end of the outer cylinder is detachably connected with a hand-off assembly or a tie-back assembly, and the bottom end of the outer cylinder is provided with a ball valve assembly; the outer cylindrical surface of the shear spindle is provided with a first boss and a second boss at intervals, and the area of the upper acting surface of the first boss is greater than the area of the lower acting surface of the second boss; after the lower rupture disc is broken, the annular space pressure drives the shear spindle to move upward, and the ball valve assembly is closed; after the upper rupture disc is broken, the annular space pressure forms a pressure difference between the upper acting surface of the first boss and the lower acting surface of the second boss, the shear spindle moves downward under the action of the pressure difference, and the ball valve assembly is opened. The present application can form a pressure difference on the shear spindle through the annular space pressure to remotely control the shear spindle to move so as to open or close the ball valve assembly, which is beneficial to rapid layer conversion operation.

This utility model provides a small gear surface grinding machine, belonging to the field of grinding technology. In this small gear surface grinding machine, an L-shaped frame is fixedly mounted on the upper surface of the grinding table, a cylinder is fixedly mounted at one end of the L-shaped frame, and the machine body is fixed to the piston end of the cylinder. The upper surface of the grinding table has an equipment slot and a workpiece slot, which are coaxial. Positioning and clamping mechanisms are provided on both the equipment slot and the workpiece slot, and a rotating mechanism is provided on the equipment slot. The positioning and clamping mechanism includes an arc-shaped plate and a positioning disk. The arc-shaped plate is arranged in a ring array above the workpiece slot, and the positioning disk is rotatably positioned at the axis of the workpiece slot. Several L-shaped elastic elements are fixedly arranged in a ring array on the upper surface of the positioning disk. Several limiting rods are fixedly mounted on one side of the arc-shaped plate, and a conical seat is fixedly mounted at one end of each limiting rod. Electric push rods are arranged in a ring array on the equipment slot, and the piston end of each electric push rod is fixedly connected to the other side of the arc-shaped plate. This design improves the grinding efficiency of gear workpieces.

The application relates to a smart measurement switch installation and acquisition method, and belongs to the technical field of electric power metering and data acquisition. The application comprises the following steps: after the smart measurement switch is powered on, a meter searching operation is automatically performed to generate a list of devices to be hung down, and the list is actively reported to a concentrator after the smart measurement switch is connected to a network through an STA; the concentrator identifies the newly-added device and reports an event; after asset information is checked by a cross-platform acquisition system, a temporary file is automatically built, parameters are immediately issued, and remote debugging is initiated; the result is fed back to a field terminal in real time; after a marketing process is completed, the temporary file is smoothly upgraded to an official file; and a topological identification technology is used to dynamically optimize the IOT relationship. Through the temporary-official dual-state file mechanism and the device active reporting technology, the application realizes automatic discovery, instant filing and remote debugging of newly-installed metering devices, completely eliminates data acquisition lag caused by an approval process, guarantees the timeliness of electricity settlement and the accuracy of line loss calculation, and significantly improves operation and maintenance efficiency.

The utility model aims at providing a bending machine tool apron auxiliary steering device, including seat and support component, support component includes side column, axle column, first screw block, second screw block, linkage, a plurality of sliding blocks and a plurality of elastic pieces, side column is screwed on the tool apron, axle column is worn on the base, each sliding block is slidably arranged on the base, each elastic piece respectively pushes each sliding block and encloses axle column, first screw block and second screw block are slidably arranged on each sliding block, to make each sliding block drive first screw block and second screw block form a annular structure, and annular structure is screwed with axle column, axle column is used for with side column and is contacted, linkage is used for driving each sliding block relative to base synchronous sliding, when any one in each sliding block is slid away from axle column by external force, to make first screw block and second screw block synchronous away from axle column, and then make axle column quickly from base stretches out to with side column and is contacted. Like this, to reduce the time of axle column slow extension, greatly shorten the operation time of tool apron conversion groove.

The application provides a continuous rigid frame bracket structure and a construction method thereof. One end of a platform cross beam is connected with one end of a support bracket, and the other end of the platform cross beam and the other end of the support bracket are connected with embedded parts in a pier column to form a triangular support structure. A plurality of triangular support structures are arranged in a circle around the pier column and are connected through steel structures to form a bracket support structure. An operation platform is arranged outside the plurality of triangular support structures, and a formwork is arranged inside the plurality of triangular support structures, and the formwork is used for pouring a beam body. The bracket support structure does not need conventional welding, improves work efficiency, reduces construction period, reduces technical difficulty, and increases safety guarantee. In addition, the bracket support structure is cheap to disassemble in the later period, is suitable for bracket construction at an ultrahigh position, and guarantees the safety, firmness and reliability of the bracket.

This invention discloses an automatic tilting coupler sand removal device, relating to the field of coupler processing technology. It includes a cleaning box with a tilting bucket rotatably mounted inside. A power component is installed on the cleaning box to drive the tilting bucket to reciprocate. A frame is fixed to the bottom inner wall of the cleaning box, and a swing tube with a superior arc cross-section is rotatably mounted on the top of the frame. A nozzle is coaxially inserted into the swing tube. A nozzle head is fixed and connected to the spray tube. An air pipe is fixed inside the cleaning box and connected to an external air source. A connecting hose is fixed and connected between the spray tube and the air pipe. A transmission mechanism, driven by the power component, is installed inside the cleaning box to drive the nozzle to swing up and down, to reciprocate within the swing tube, and to slide axially within the swing tube. This invention can clean the coupler from multiple angles, preventing iron sand residue inside the coupler, reducing the impact on subsequent coupler assembly, reducing cleaning time, and improving sand removal efficiency.

The utility model discloses a bridge girder erection machine front supporting leg cable-stayed supporting structure which comprises a bridge girder erection machine body, a door-shaped frame is arranged in the bridge girder erection machine body, a stand column is fixedly connected below the door-shaped frame, supporting feet are fixedly connected to the bottom of the stand column, an adjusting assembly is arranged between the supporting feet, and rail assemblies are arranged at the connecting positions of the supporting feet and the stand column. The rail assembly comprises a first rail and a second rail, one end of the first rail is rotationally connected with one end of the second rail, the first rail has a first state and a second state, when the first rail is in the first state, the second rail and the first rail are located on the same straight line, and a crane is used for cooperation, a cage operation mode is adopted, and a connecting pin shaft is disassembled and assembled; after rectification, the operation time is effectively shortened to five or six hours, the operation time is saved by more than half compared with the operation time before transformation, the beam erecting cost is greatly reduced, the operation is simple, convenient and rapid, and the disassembly and assembly are flexible.

This utility model discloses a rail breaking tool, including a guide device, a rail impactor, and impact pins. One end of the guide device is detachably connected to the rail impactor, and the other end of the guide device is connected with two impact pins spaced apart. Each impact pin has a right-angled trapezoidal cross-section. This utility model belongs to the technical field of rail tools. Its purpose is to solve the problems in existing rail breaking processes involving open flames and heavy object impacts, which pose significant safety hazards and can easily cause personal injury to operators. The achieved technical effects are: rapid rail breaking; simple and lightweight structure; quick rail breaking; shortened operation time; simple operation method; relatively lightweight and portable; strong safety applicability; mainly uses existing equipment; relatively low cost; and good application prospects.

The utility model provides a kind of anti-kick pouring form, it includes first side mould, second side mould and distance adjuster, the first side mould and the second side mould are parallel and interval arrangement to form pouring area, and the two are connected by the distance adjuster, and the distance adjuster can adjust the width dimension of the pouring area;At least two groups of third side mould are equipped in the pouring area, and the third side mould extends along the width of the pouring area, and the pouring area can be at least separated into independent first subarea, second subarea and third subarea, and the first subarea, the second subarea and the third subarea are dispersed along the length of the pouring area.The utility model is separated into first subarea and third subarea as the actual pouring area of anti-kick by setting third side mould, second subarea is not poured mortar, provides installation space for floor heating pipeline, can avoid slotting operation after anti-kick pouring is completed, and comprehensively improves construction quality and efficiency.

This invention relates to the field of wastewater treatment technology, specifically to a dynamic jet negative pressure sludge discharge device, comprising a gas-liquid separation chamber, a negative pressure sludge suction pipe, a gas-liquid separation net, a high-pressure air pump, a high-pressure water pump, a sludge loosening component, a jetting component, a lifting plate, a hydraulic driver, a first hydraulic telescopic rod, a second hydraulic telescopic rod, a third hydraulic telescopic rod, a first connecting rod, a second connecting rod, a feed pipe and lifting sleeve, and other components such as the sludge loosening component and the jetting component. This invention achieves water deaeration through the cooperation of the gas-liquid separation chamber, the gas-liquid separation net, and the high-pressure air pump; loosens the sludge through components such as the aeration rods of the sludge loosening component; and washes and breaks up the sludge through components such as the arc-shaped shovel and the anti-clogging nozzles of the jetting component. The second and third hydraulic telescopic rods, along with other components, allow for adjustment of the angle and height of multiple components. This solves the problems of incomplete cleaning, high energy consumption, poor adaptability, and easy clogging in existing sludge discharge devices, achieving efficient, precise, and stable cleaning of sludge at the bottom of the tank under different working conditions.

The utility model relates to the technical field of transformers, in particular to an oil leakage monitoring mechanism for a conducting rod, which comprises a connecting pipe and a liquid storage cylinder, the liquid storage cylinder is in threaded connection with the lower end of the connecting pipe, the connecting pipe is sleeved outside the conducting rod, and the lower end of the conducting rod penetrates through the liquid storage cylinder. A quick connecting assembly is arranged at the upper end of the connecting pipe, the quick connecting assembly is used for quickly installing the connecting pipe on a connecting part at the upper end of the conducting rod, scraping plates are arranged on the two sides of the interior of the liquid storage cylinder, one end of each scraping plate is attached to the inner wall of the liquid storage cylinder, and a driving assembly is arranged on one side of the upper end of the liquid storage cylinder; and the driving assembly is used for driving the two scraping plates to rotate around the axis of the liquid storage cylinder in the liquid storage cylinder. Compared with the prior art, the oil leakage monitoring mechanism solves the problems that in the prior art, an oil leakage monitoring mechanism is long in installation time, and the monitoring function can be recovered only by disassembling and cleaning the liquid storage cylinder after long-time use.

The utility model belongs to the agricultural pesticide application technical field especially relates to a kind of potato ridge directional spray anti-drift cover, comprising: fixed block, clamping assembly is arranged on the fixed block, the fixed block is fixed on spray rod by the clamping assembly;Wind shield, the top of the wind shield is provided with insert block, the fixed block is provided with slot, the slot is compatible with the insert block, the slot is provided with clamping assembly, the insert block is limited with the fixed block by the clamping assembly;The inside bottom of the wind shield is provided with collecting groove, the collecting groove is communicated with a plurality of liquid collecting pieces, the liquid collecting piece is equidistantly arranged along the circumference of the wind shield.The utility model is equipped with the collecting groove and the liquid collecting piece of equidistantly distributed circumferentially in the inside bottom of wind shield, can efficiently recycle the dripping pesticide liquid in the process of spraying, avoid pesticide liquid waste.

A kind of mechanized bolt fastening device for narrow space assembled building module and its using method, comprising: spanner chassis, the top of spanner chassis is fixedly installed with inverted L frame, first gear is rotated by reduction drive assembly, then the first gear of rotation synchronously drives first transmission rod and first rocker at the bottom of first transmission rod, so that transmission rod produces swing, then the transmission rod of swing is driven again in the action of first limiting rod, second limiting rod and sliding groove, drives ratchet spanner and spanner sleeve to move in 30 ° active range and continuously tightens bolt, so that the overall use of the device is light, meet in narrow range Construction, and can be translated and taken out, meet the functional requirements of once living of full renovation building, can achieve module building with hoist and install, improve connection efficiency, reduce operation time, shorten project construction period, greatly reduce on-site construction, improve overall assembly rate.

The utility model provides a table tool for dismounting and installing cylinder cover valve lock clamp of internal combustion locomotive belongs to valve lock clamp dismounting table tool technical field. The table tool for dismounting and installing cylinder cover valve lock clamp of internal combustion locomotive, including pressing plate, through -hole, pressure rod, cross arm, screw thread connecting piece and lock driving part, the through -hole sets up on the pressing plate, the pressure rod is arranged in the surface of the pressing plate perpendicularly, the cross arm is sleeved on the pressure rod, the screw thread connecting piece sets up at both ends of cross arm, and the screw thread connecting piece is used for connecting the screw thread of cross arm guide rod, the lock driving part sets up one at both sides of cross arm, and one end of lock driving part is connected with pressure rod transmission, and its other end is connected with screw thread connecting piece transmission, and screw thread driving part is used for driving screw thread connecting piece and the screw thread of cross arm guide rod to engage or separate. The utility model has the advantages of reducing cylinder cover valve dismounting work intensity, shortening operation time, improving locomotive utilization rate.