69results about How to "Increase maintenance space" patented technology

The invention relates to a multidirectional discharging method of a mobile discharging car, and belongs to the technical field of a bulk material discharging device. The multidirectional discharging method is characterized in that materials are transferred into a belt conveyor at the lower part through a funnel and then are transported to the position above a discharging point for discharge; and by adjusting the horizontal distance between the discharging point of the belt conveyor and the outlet of the funnel, discharging position is adjusted without increasing overall height of the conveyor. The multidirectional discharging method has the beneficial effects that the materials can be flexibly discharged in multiple directions as required; the structure is compact, thus saving equipment installation space; a long chute is not used, thus avoiding phenomena such as material aggregation and blockage; by effectively controlling equipment height, discharging height difference is decreased, and dust generated during the material transfer process is reduced, and good dedusting and environmental protection effect can be obtained by utilizing dedusting equipment; and steel structural members in the equipment are simplified and diminished, thus the equipment can be conveniently installed and simply debugged, operated and maintained, and good economic benefit can be obtained. The mobile discharging car is particularly applicable to workplaces with narrow plant space and higher requirement on environmental quality.

The invention discloses a conveniently maintained and overhauled low-voltage cabinet which comprises a fixing device and a low-voltage cabinet main body, wherein the low-voltage cabinet main body is movably arranged on the fixing device; the fixing device comprises a rectangular mounting frame; L-shaped fixing lugs are arranged at four corners of the rectangular mounting frame; L-shaped sliding rails are fixedly arranged at the four corners of a same side wall of the rectangular mounting frame; four sets of L-shaped sliding rails and the rectangular mounting frame are vertically arranged; and sliding limiting slots penetrating through the side walls are arranged on the two side walls of the L-shaped sliding rails along the length direction. According to the invention, a mounting wall can be taken away and a movable mounting plate is used for taking the inner element out of the low-voltage cabinet main body, so that the space for maintaining and overhauling the low-voltage cabinet main body can be increased for the technician, the limitation of the two side walls of the low-voltage cabinet main body can be avoided and the working efficiency of the maintaining and overhauling of the technician can be increased.

The invention relates to a middle storage type medium-speed milling positive pressure direct blowing type powder making system comprising a plurality of coal mills, dynamic separators at outlets of the coal mills, a plurality of first coal powder pipes arranged at outlets of the dynamic separators in parallel, air and powder mixing balance bins correspondingly connected to first coal powder pipe outlets of every two corresponding coal mills, a plurality of second coal powder pipes correspondingly connected with air and powder mixing balance bin outlets in parallel, coal powder burners connected to second coal powder pipe outlets, and a boiler provided with the multiple coal powder burners correspondingly. Through the middle storage type medium-speed milling positive pressure direct blowing type powder making system, mill overhauling can be achieved without stopping of the boiler, the coal mills can be switched freely without interference to the burning stability of the boiler, consistency of uniformity of air and powder mixing in all coal powder pipelines can be further achieved, uniformity and stability of burning are achieved finally, and the requirements of environmental protection and energy saving are met.

The invention discloses a hidden access door with metal rotating shafts. The hidden access door comprises an outer ring (1), an actuating arm (2) and an inner ring (3). The rotating shafts (4) are welded on one side of the outer ring (1), oblong holes are formed in the upper edge and the lower edge of the outer ring (1), and the outer ring (1) is fixed on the reverse side of a decorative face (14) through the oblong holes and a back bolt (15). The actuating arm (2) is stool-shaped and comprises four foot stands, rotating shaft accessories (7) are arranged at two adjacent foot stand ends of the actuating arm (2), and round holes are formed at another foot stand ends of the actuating arm (2). The actuating arm (2) penetrates the outer ring (1) to be connected with the rotating shafts (4). Round holes are formed in the upper top face and the lower top face of the inner ring (3), and oblong holes are formed in the left side and the right side of the inner ring (3). The inner ring (3) is connected with the round holes of the actuating arm (2), and is connected with a veneer (16) to form an integral structure. Through the action of turning the actuating arm, maintenance space is enlarged; collision between the access door and materials around the door is avoided; beveling of edges and corners of the access door is not needed, and accordingly, attractiveness in appearance is improved; the access door is convenient to demount.

The invention discloses a low-voltage compensation power distribution cabinet provided with a turn-out movable overhaul mechanism. The power distribution cabinet comprises a power distribution cabinetbody, an installing side plate, a line bank and a cabinet door, wherein a movable installing frame is arranged in the power distribution cabinet body, a movable guide rail is arranged between the power distribution cabinet body and the movable installing frame, a side wiring maintenance slot is formed in the right side of the installing side plate, wiring through slots are uniformly distributed in the inner side of a wiring fixing plate, a wiring fixing clamp is arranged on a side face of the line bank, movable pulleys are arranged at the upper end and the lower end of the wiring fixing clamprespectively, a storage slot is formed in the left side of the installing side plate, and a transmission gear is installed on the side wall of the storage slot. According to the low-voltage compensation power distribution cabinet provided with the turn-out movable overhaul mechanism, the movable installing frame facilitating movable overhaul of an element in the device is arranged, and through cooperation of the turnover storage cabinet door and the side wiring maintenance slot, orderly arrangement of lines and flexible overhaul of the device can be facilitated.

The invention relates to metal components, and provides a combined type fireproof explosion prevention partition which is characterized by comprising a left stand column, a middle stand column and a right stand column. A base anchor is installed at the bottom of each stand column in a welded mode, a bolt hole is formed in each base anchor, and each base anchor is fixedly connected with a foundation through adoption of bolts. Full-length concave insertion grooves are formed in a right side face of the left stand column, a left side face and a right side face of the middle stand column, and a left side face of the right stand column. An upper fireproof explosion prevention panel and a lower fireproof explosion prevention panel which are the same in area are mounted between each two stand columns through the concave insertion groove in an inserted manner. Each fireproof explosion prevention panel comprises a front steel plate and a rear steel plate, multiple damper springs are uniformly distributed between each two steel plates, and hand catching grooves are respectively formed in the middle of the obverse side and the middle of the reverse side of each fireproof explosion prevention panel. The middle stand column is composed of two sections, and an upper section is in butt joint with a lower section by adoption of a male-and-female tenon structure. According to the combined type fireproof explosion prevention partition, problems that a traditional whole type fixed type fireproof explosion prevention wall occupies a large indoor space, inconvenient to overhaul, and the like are solved, and the combined type fireproof explosion prevention partition is mainly applied to fireproof explosion prevention of converting station narrow indoor electrical equipment.

The invention provides a hydraulic tire vulcanizing machine. The hydraulic tire vulcanizing machine comprises vulcanizing chambers, a mould opening and closing oil cylinder, a base and a plurality of guild pillars fixedly arranged on the base. The upper vulcanizing chamber comprises an upper hot plate, an upper thermal baffle and an upper main board; the lower vulcanizing chamber comprises a lower hot plate, a lower thermal baffle and a lower main board; and a plurality of integrated mechanisms are arranged on the vulcanizing chambers, and the integrated mechanisms integrate functions of mould clamping, stress application and mould adjusting. According to the hydraulic tire vulcanizing machine, the three functions of mold clamping, stress application and mold adjusting can be achieved only by arranging the integrated mechanisms, and thus the vulcanizing machine structure is simplified greatly, and space for equipment installation and maintaining is enlarged; an stress application oil cylinder only works in the process of vulcanization stress application, so the travel of the oil cylinder is short, and the stress application time is short; mould adjusting is achieved through the mould opening and closing motions and the relative motions of screw nuts and screw rods; mould clamping is also achieved through the integrated mechanisms, clamping rings in the prior art are omitted, the center distance between two moulds of a dual-mould hydraulic vulcanizing machine can be reduced, the occupied area of the whole machine can be reduced, the maintenance space is enlarged, and the maintenance is convenient.

The invention relates to the technical field of electrical control and discloses an electrical control box. The electrical control box comprises a base, universal wheels are fixedly installed at the four corners of the bottom of the base respectively, a side plate is fixedly installed on the upper portion of the base, the upper portion of the base is movably hinged to the left side of the upper portion of a protective cover through a pin shaft, and a round pipe vertically and fixedly penetrates through the middle of the upper portion of the protective cover. The protective cover is rotated andopened through the pin shaft, the protective cover can reach a horizontal stable state under the supporting effect of the hydraulic supporting rod, on one hand, the top of the head of an operator canbe protected through the opened protective cover through the combination mode, falling objects are prevented from injuring the operator, and the safety is improved; and after the protective cover isrotated and opened, the rectangular mounting box on the whole base can be exposed, so that the overhauling space can be increased, the overhauling operation of an operator is more convenient, and theoperation is very convenient.

The invention discloses a device for controlling the hydraulic circuit and the lubricant oil circuit of a cone crusher. The device is arranged on the cone crusher, and is connected with an oil cylinder positioned on the cone crusher through an oil pipe. The device is characterized by comprising a shell, wherein the hydraulic circuit and a lubricant circuit are arranged inside the shell; the hydraulic circuit comprises a hydraulic oil tank arranged inside the shell and used for storing hydraulic oil; the hydraulic oil tank is connected to a hydraulic oil pump with double circuits for providing hydraulic power through an oil pipe; inlet and outlet ports at the two ends of the hydraulic oil pump are connected to a control valve through oil pipes, and are connected to an energy storage device through oil pipes; the energy storage device is connected with the oil cylinder through an oil pipe. The device further comprises the lubricant circuit, wherein a lubricant filter is directly connected with a lubricant oil pipe through an oil pipe; the oil cylinder is connected with a lubricant oil tank through an oil return pipe. The device can take away worn waste residues, generated during the operation, in the crusher, so that secondary damage of the waste residues to the crusher is reduced, and the service life is prolonged; meanwhile, the flowing capacity of the oil circuit is increased, a better lubricating effect is achieved, and thus safe and stable operation of the crusher is guaranteed.

The invention relates to a middle-arranged-type high-voltage switch cabinet which is characterized in that after a busbar which is led out from a lower contact box of a circuit breaker room straightly runs downward for a distance, the busbar is connected with a longitudinal short busbar connected with a voltage transformer, a current transformer and a lightning arrester; a busbar on a line outgoing terminal of the current transformer bends forward after straightly running upward for a distance; the busbar which bends forward is fixed on an insulator; a wiring hole which is prepared for connecting a high-voltage cable is formed on the end part of the busbar; a line inlet of the high-voltage cable is formed on the middle part at the bottom of a cable room; and the an observation window is also formed on a cabinet door of the cable room. The middle-arranged-type high-voltage switch cabinet provided by the invention has the advantages that the thickness of the high-voltage cabinet with the same capacity can be reduced by 20%, raw materials of the cabinet are saved, and the manufacturing cost of the cabinet is saved; and running monitoring and electrical test of the cable, the current transformer, the voltage transformer and a grounding switch can be conveniently carried out before the cabinet by operators.

The invention relates to the technical field of offshore platforms and discloses a superstructure for an offshore platform. The superstructure for the offshore platform comprises a lower deck, a top deck, a multi-layer middle deck and multiple cabin units; an opening is formed in the middle parts of the top deck and the middle deck; an outer surrounding wall is arranged on the outer side of the lower deck, the outer side of the top deck and the outer side of the middle deck; an inner surrounding wall is arranged on the peripheral side of the opening; multiple windows are formed in the outer surrounding wall and the inner surrounding wall respectively; the multiple cabin units are arranged on the top deck and the middle deck and are arranged close to the outer surrounding wall or the innersurrounding wall, so that the middle part of the deck is hollow, sunlight can be radiated from the opening to irradiate an interior space, and an area of sunlight irradiation is increased; and in addition, the cabin units are arranged close to the outer side of the deck and the peripheral side of the opening, so that the cabin unit for daily life of crews are not shielded and are full of sunlight,and the living comfort of the crews is guaranteed.

The invention relates to an electrically controlled steering device for an aircraft tractor, relating to the aviation field of ground facilities. The electrically controlled steering device comprises a steering column and a steering wheel arranged thereon, and is characterized in that a coder and an arrester are installed on the steering column, a controller is used for collecting and outputting signals, and an angle sensor is installed on a steering axle; the steering wheel inputs analog signals into the controller by the coder, and the controller sends steering electric signals to a steering control electromagnetic valve according to the instruction of the obtained analog signals; after receiving the electric signals, the steering control electromagnetic valve controls a steering hydraulic cylinder to push the steering axle to act and to control the steering angle of the steering axle; and the angle sensor installed on the steering axle converts the collected actual steering angle of the steering axle into an electric signal and simultaneously inputs the electric signal into the arrester by the controller, and the arrester generates a relatively proportioned braking torque according to the obtained electric signal.

A standing and sitting dual-purpose fume hood comprises a fume hood body. The fume hood body is formed by combining an upper cabinet, a table board, a lower cabinet, a water pipe, wire and gas pipe containing interlayer together. The table board is arranged on the lower cabinet and in the upper cabinet. The standing and sitting dual-purpose fume hood is characterized in that a movable storage cabinet capable of ascending and descending is arranged in the lower cabinet; a water pipe, wire and gas pipe overhauling space is reserved in the lower cabinet; the movable storage cabinet capable of ascending and descending, the reserved water pipe, wire and gas pipe overhauling space and lifting castors mounted at the bottoms of four stand columns of the storage cabinet constitute the standing and sitting dual-purpose fume hood. The purposes to be realized are that a storage cabinet with a single function is created into a four-wheel drive multifunctional storage cabinet on the basis of not changing the basic structure of an existing fume hood to replace a laboratory chair and realize the standing and sitting purposes of the fume hood.

The invention relates to the technical field of network servers, in particular to a dustproof network server with high heat dissipation performance, which comprises a protective shell, and a network server framework is arranged in the protective shell. The network server framework and the cooling supporting plate can be pulled out by pulling the network server framework, supporting can be conducted through the supporting wheels, a user rotates the side plates, and the side plates can be supported through the supporting rods, so that the overhaul and maintenance space of the user can be enlarged, the overhaul and maintenance difficulty of the user is reduced, and the working efficiency of the user is improved; the cooling supporting plate can be cooled through a cooling water tank, a first water inlet pipe and a first water outlet pipe, the cooling supporting plate can be cooled according to the needs of a user through a valve, and the temperature in the water storage tank can be reduced through cooling fins, a motor and fan blades, so that the cooling efficiency of the device is improved, and the service life of the device is prolonged; and the network server framework and the cooling support plate can be sealed and stored through the protective shell and the sealing door, so that dust is prevented from entering.

The embodiment of the invention relates to the technical field of tunnel ventilation and smoke discharge, in particular to a tunnel structure with a rectangular cross section. The tunnel structure comprises travelling tunnels, a pipe gallery, a tunnel machine room, a smoke discharge ventilating shaft and a tunnel smoke discharge system, wherein the pipe gallery comprises a smoke discharge air flueand a cable channel; a dismountable fire-proof plate is installed at the bottom of the cable channel; the tunnel smoke discharge system comprises a plurality of transverse smoke discharge pipes, smoke discharge efficiency promotion devices corresponding to the transverse smoke discharge pipes one to one, an air shaft end smoke discharge device and a control device; the transverse smoke dischargepipes are installed at the tops of the travelling tunnels at intervals in the length direction of the travelling tunnels; and the smoke discharge efficiency promotion devices are installed in the smoke discharge air flue and communicate with corresponding smoke outlets. The tunnel structure can reduce the construction difficulty and the construction cost and can improve the smoke discharge efficiency.

The invention provides a movable mounting base for ship electrical equipment. The electrical equipment is placed in the cabin of the ship. The mounting base comprises a fixed module, a movable moduleand a connecting assembly; the fixed module is fixedly mounted on the deck of the cabin; the upper end of the fixed module is movably connected with the lower end of the movable module through the connecting assembly; and the electrical equipment is fixedly connected with the upper end of the movable module. According to the movable mounting base of the invention, the electrical equipment is fixedon the movable module; the movable module is movably connected with the fixed module, so that the electrical equipment can be moved to be far away from a cabin wall when needing to be overhauled, andtherefore, overhauling space of the electrical equipment is improved; and during normal work, the electrical equipment is close to the cabin wall, so that the occupation of a public area is reduced;and therefore, the whole cabin is more reasonable in arrangement, the use and maintenance of the equipment are facilitated, and on-site construction is facilitated.

The invention discloses a conveniently maintained and overhauled low-voltage cabinet which comprises a fixing device and a low-voltage cabinet main body, wherein the low-voltage cabinet main body is movably arranged on the fixing device; the fixing device comprises a rectangular mounting frame; L-shaped fixing lugs are arranged at four corners of the rectangular mounting frame; L-shaped sliding rails are fixedly arranged at the four corners of a same side wall of the rectangular mounting frame; four sets of L-shaped sliding rails and the rectangular mounting frame are vertically arranged; and sliding limiting slots penetrating through the side walls are arranged on the two side walls of the L-shaped sliding rails along the length direction. According to the invention, a mounting wall can be taken away and a movable mounting plate is used for taking the inner element out of the low-voltage cabinet main body, so that the space for maintaining and overhauling the low-voltage cabinet main body can be increased for the technician, the limitation of the two side walls of the low-voltage cabinet main body can be avoided and the working efficiency of the maintaining and overhauling of the technician can be increased.

The invention relates to the technical field of bulk material storage, and discloses a full-hydraulic-driven rail type auger delivery machine which comprises a silo and a delivery machine body, a center hole is formed in the center of the bottom of the silo, a center frame of the delivery machine body is fixed to the center hole in the silo, and a circular center rotating disc is contained and supported in the center frame; a machine cover is installed on the central rotating disc and can rotate along with the central rotating disc, and the outer wall of the machine cover makes contact with materials in the silo. According to the invention, the self-rotating hydraulic motor is arranged in the bin to directly drive the auger, so that the problem that the driving mode that the motor is arranged in the bin is difficult to meet the requirement of electrical explosion prevention is solved. Compared with the mode that a motor bin is arranged outside and an auger is driven through mechanical gear transmission, the discharging hopper and the interior of the machine cover of the full-hydraulic rail type bin discharger are simpler in structure, more convenient to install, larger in overhaul space and lower in cost. Maintenance points in the bin are few, and equipment reliability is higher.

The invention relates to metal components, and provides a combined type fireproof explosion prevention partition which is characterized by comprising a left stand column, a middle stand column and a right stand column. A base anchor is installed at the bottom of each stand column in a welded mode, a bolt hole is formed in each base anchor, and each base anchor is fixedly connected with a foundation through adoption of bolts. Full-length concave insertion grooves are formed in a right side face of the left stand column, a left side face and a right side face of the middle stand column, and a left side face of the right stand column. An upper fireproof explosion prevention panel and a lower fireproof explosion prevention panel which are the same in area are mounted between each two stand columns through the concave insertion groove in an inserted manner. Each fireproof explosion prevention panel comprises a front steel plate and a rear steel plate, multiple damper springs are uniformly distributed between each two steel plates, and hand catching grooves are respectively formed in the middle of the obverse side and the middle of the reverse side of each fireproof explosion prevention panel. The middle stand column is composed of two sections, and an upper section is in butt joint with a lower section by adoption of a male-and-female tenon structure. According to the combined type fireproof explosion prevention partition, problems that a traditional whole type fixed type fireproof explosion prevention wall occupies a large indoor space, inconvenient to overhaul, and the like are solved, and the combined type fireproof explosion prevention partition is mainly applied to fireproof explosion prevention of converting station narrow indoor electrical equipment.

The invention is applicable to the field of cleaning and environment protection and provides an industrial cleaning device. The industrial cleaning device comprises a support, a plurality of nozzle plates, a first nozzle plate, a first air pressure valve, a medium-pressure cleaning liquid pipeline and a plurality of nozzles. The nozzle plates and the first nozzle plate are arranged in a closed cavity of the support, one end of the first nozzle plate is connected with the support movably, the first nozzle plate edge is movably connected and opens and closes, the nozzles are arranged on the nozzle plates and the first nozzle plate and in the cavity, the medium-pressure cleaning liquid pipeline is arranged on the support, one end of the medium-pressure cleaning liquid pipeline is connected with each nozzle plate and the first nozzle plate respectively, and the other end of the medium-pressure cleaning liquid pipeline is connected with the first air pressure valve. By the same nozzles, cost is reduced; the single nozzle plate is movably connected to open and close, maintenance space of the nozzles is enlarged, and the problem of man-machine projects brought by observation and operation inconveniences is eliminated.

The invention relates to manhole cover plate locating devices and provides an internal pressure type manhole cover plate locating device in order to solve the problems that an existing high-pressure vessel internal pressure type manhole cover plate locating device is heavy in weight and difficult and complex in assembling and reassembling process, needs to be manually adjusted each time and is untight due to inaccurate locating. The internal pressure type manhole cover plate locating device comprises a cover plate fixing strip, a rotating shaft, a base plate, a positioning bolt, a support, a crank arm, a rotary shaft, a rocking handle and a connecting piece. The positioning bolt is in threaded connection with the base plate. The rotating shaft is fixedly mounted at one end of the crank arm. The top end of the positioning bolt abuts against the rotating shaft. The other end of the crank arm is rotatably connected with one end of the cover plate fixing strip through a first pin shaft. The other end of the cover plate fixing strip is rotatably connected with one end of the connecting piece through a second pin shaft. The other end of the connecting piece is connected with the rockinghandle. The rocking handle is rotatably connected with the curved portion of the crank arm through the rotary shaft. The cover plate fixing strip is mounted on a manhole cover plate. The manhole coverplate is mounted on a manhole base. The internal pressure type manhole cover plate locating device is applied to the field of internal pressure type manhole cover plate installation.

The invention relates to a cable detection vehicle, and relates to the technical field of bridge inspection. The cable detection vehicle comprises an detection vehicle body which is internally provided with an accommodating space for accommodating a cable; a hanging basket, which is arranged at the bottom end of the detection vehicle body, is used for bearing a maintainer, and is provided with a channel for the cable to pass through, wherein the channel is communicated with the accommodating space; a walking mechanism, which is arranged on a top plate of the detection vehicle body, wherein the top plate can reciprocate on the walking mechanism in the transverse bridge direction; and a traction mechanism, which is connected with the walking mechanism and used for driving the walking mechanism to move on the protection cable of the cable. In the cable maintenance process, a maintainer can drive the top plate of the detection vehicle body to do reciprocating motion on the walking mechanism in the transverse bridge direction, so that the maintenance space of the detection vehicle is enlarged, the maintainer can conveniently carry out maintenance construction on the cable, the requirement for the maintenance construction space is met, the application range is wide, and flexibility is high.

The invention relates to a passenger car and a front wall door assembly thereof. The front wall door assembly of the passenger car comprises a door body and a bumper located below the door body. A door body connecting piece is arranged on the lower portion of the door body, the door body connecting piece is provided with a door body hinge portion used for being hinged to the front wall framework around a straight line extending in the left-right direction, a bumper hinge portion used for being hinged to the front wall framework around the straight line is arranged on the lower portion of the bumper, and a door lever locking and unlocking device is arranged between the door body and the bumper. A door lever locking and unlocking device is arranged between the door body and the bumper; the hinge axis of the door body connecting piece and the front wall framework and the hinge axis of the bumper and the front wall framework are located on the same straight line, so that the door body andthe bumper can be turned downwards together, interference of the hinge position of an upper access door in the prior art to an access space is avoided, the access space is increased, and work of workers is facilitated.

The invention discloses an SF6 gas all-insulation ring main unit with excellent heat dissipation performance, and belongs to the technical field of electrical cabinets. An SF6 gas all-insulation ring main unit with excellent heat dissipation performance comprises an upper cabinet body, a lower cabinet body installed at the bottom of the upper cabinet body and a control box installed on the side wall of the lower cabinet body, an inner cavity of the lower cabinet body is divided into a heat dissipation cavity and a wire arrangement cavity through a partition plate, and the upper cabinet body comprises a first sealing part and a second sealing part which are slidably connected to the top of the lower cabinet body; the opposite sides of the first sealing part and the second sealing part are provided with butt joint parts which are matched with each other, the back faces of the first sealing part and the second sealing part are further provided with heat dissipation windows which are evenly distributed, heat dissipation openings of the heat dissipation windows are provided with opening and closing mechanisms, and the top of the lower cabinet body is provided with an electric appliance element installation part arranged in the upper cabinet body. A butt joint control mechanism matched with the first sealing part and the second sealing part is further arranged on the back face of the lower cabinet body. Damp-proof and heat dissipation functions in a rainy day state are realized, and meanwhile, the maintenance space is increased to facilitate later detection and maintenance.

The invention provides a novel geometrically symmetrical absorption tower flue gas outlet device. The absorption tower flue gas outlet device comprises a trapezoidal corner cylinder, a disc and a circular absorption tower wall plate, and the disc is fixedly mounted between the trapezoidal corner cylinder and the circular absorption tower wall plate; a circular short connection cylinder is fixedlymounted on the outer surface of one side of the trapezoidal corner cylinder; a circular flange is fixedly connected to the outer surface of one side of the circular short connection cylinder; and an overhauling opening is formed in the outer surface of the upper end of the trapezoidal corner cylinder, a triangular overhauling table is movably connected to the interior of the overhauling opening, the triangular overhauling table is composed of a first limiting plate, a second limiting plate and a third limiting plate, and the second limiting plate is movably installed between the first limitingplate and the third limiting plate. According to the device, flue gas can uniformly flow, the flue gas exhaust speed is increased, rainwater infiltration is prevented, the detection space is increased, maintenance is convenient, in addition, rainwater corrosion can be reduced, and rainwater recycling is facilitated.

The invention provides a sleeve type supporting leg structure of a slag pot car. The supporting leg structure is connected to the lower portion of a rear car frame and is composed of a supporting leg outer sleeve, a supporting leg inner sleeve and a supporting leg oil cylinder; the supporting leg inner sleeve is sleeved with the supporting leg outer sleeve, a cylinder barrel of the supporting leg oil cylinder is hinged to the supporting leg outer sleeve, a piston rod of the supporting leg oil cylinder is hinged to the supporting leg inner sleeve, and when the supporting leg oil cylinder extends, the supporting leg inner sleeve is drive to stretch out; in the whole motion process, the piston rod is hidden in the supporting leg inner sleeve, a wear-resisting plate is hidden in the supporting leg outer sleeve, the wear-resisting plate and the rod of the supporting leg oil cylinder are not exposed, reliability can be improved, and the structure is more durable; a square sleeve structure is adopted in the supporting leg structure, only one directional freedom degree exits, and supporting is more stable; the supporting leg structure is arranged on a supporting lower portion of a work large arm, the occupied space, in the width direction, of a rear car is small, the overhauling space of rear wheels can be increased, and maintaining convenience is improved.

The invention provides an emergency switching-off device, which belongs to the technical field of electric power equipment. The emergency switching-off device comprises a C-shaped plate, a button assembly and a driven assembly, wherein the upper end of a first bracket is hinged on the C-shaped plate by means of an upper supporting pin shaft, the lower end of a first bracket is hinged on the C-shaped plate by means of a lower supporting pin shaft, a torsional spring is arranged on the upper supporting pin shaft, a limiting screw is installed on a limiting support plate, a button supporting sleeve of the button assembly is installed on a cabinet door by means of a locking cushion plate, a button can be arranged in the button supporting sleeve in a left-right slidable manner, a button return spring is arranged between the button and the button supporting sleeve, a return baffle plate is attached to the button supporting sleeve under the action of the button return spring, the left end of an ejection rod return spring of the driven assembly is closely attached to an ejection rod supporting plate, the right end is closely attached to a second bracket, a trigger head is connected to the right end of an ejection rod in a threaded manner, and a high-voltage circuit breaker switching-off button is positioned on the right side of the trigger head. The emergency switching-off device realizes the switching-off of a high-voltage circuit breaker rapidly in an emergency state, and has the advantages of reasonable structure, good reliability, simple operation and sensitive response.

The invention discloses a water level detection device for water conservancy project management and relates to the field of water conservancy projects. According to the water level detection device, a door plate, a connecting rod and a fixing plate are arranged, so that the connecting rod can move a mounting plate and a bearing plate out of a protection box, enough maintenance space can be provided for maintenance personnel, maintenance operation is facilitated, and maintenance efficiency is improved. By arranging a temperature control system, the temperature in the protection box can be controlled within a fixed range, faults of the water level detection device at the limit temperature are avoided, the device performance stability of the water level detection device is improved, the range of working condition service conditions of the water level detection device is widened, and meanwhile the service life of the water level detection device is prolonged. A handle, a rectangular rod, a movable plate, a spring and a bearing plate are scientifically and elaborately arranged, so that maintenance personnel can maintain more conveniently; and by arranging a convex-concave groove protection sealing structure with an anti-corrosion layer and a shielding plate, the service life of the water level detection device is further prolonged.

The invention discloses a converter valve assembly and a valve tower using the converter valve assembly. More than two sub-modules in the converter valve assembly are sequentially arranged on the frame to form a valve section, and each sub-module passes through a corresponding The guiding mechanism is assembled on the frame along the column direction of the valve section. The drawing openings of each guiding mechanism are on the same side in the front and rear direction on the frame. One end of each sub-module is the plug end corresponding to the drawing opening. The plug end is set at the tail end of the sub-module, and the branch water pipe is set close to the pull-out opening corresponding to the cooling device of the sub-module. During the maintenance and installation of the valve tower, the plug end of each sub-module can pass through the pull-out opening Guide and assemble on the frame from the same side of the guide mechanism, so that the cooling device at the end of the sub-module will be on the same side of the entire valve section, so that the operator can complete the sub-module on the frame at the side where the pull-out opening of the valve section is located The installation on the board makes the converter valve assembly convenient and quick to install and maintain.