45results about How to "Reduced shipping size" patented technology

A car seat is formed with a seat member pivotally connected to a base member for positional adjustment in desired reclined positions controlled by an intuitively operable adjustment mechanism. The seat back is pivotally connected to the seat member to be oriented in a shipping position or an operative position. A latching mechanism secures the seat back to the seat member in the operative position. The seat back is provided with a head rest that is vertically movable relative to the seat back to uncover routing openings in the seat back as the child grows and the head rest is positioned accordingly. The harness is routed through selected routing openings in the seat back before passing over a hanger at the top of the seat back so that the length of the harness remains constant irrespective of the positioning of the harness in conjunction with the size of the child.

A car seat is formed with a seat member pivotally connected to a base member for positional adjustment in desired reclined positions controlled by an intuitively operable adjustment mechanism. The seat back is pivotally connected to the seat member to be oriented in a shipping position or an operative position. A latching mechanism secures the seat back to the seat member in the operative position. The seat back is provided with a head rest that is vertically movable relative to the seat back to uncover routing openings in the seat back as the child grows and the head rest is positioned accordingly. The harness is routed through selected routing openings in the seat back before passing over a hanger at the top of the seat back so that the length of the harness remains constant irrespective of the positioning of the harness in conjunction with the size of the child.

The invention relates to a split type reaming bit for large-diameter raising-boring used in mining machinery and an assembly method thereof. The reaming bit for large-diameter raising-boring is of a split type structure by which the bit is split and transport dimension and weight of the bit are controlled after disassembly, which solves the difficulty of transport and assembly in a narrow roadway of a coal mine, and the reaming bit has higher stability and higher reliability under combined action of great torque, tension and impact.

The invention discloses a miniature crane, which comprises a jib and a hook. The hook is hung to the jib top by a lifting rope. The crane also includes a pedestal, a slewing mechanism and a rotary table. The slewing mechanism can slew at any angle within 360 degrees, and includes a slewing shaft and a shaft sleeve in rotation connection. The jib is hinged to the front side of the slewing shaft, the rotary table is fixed to the rear side of the slewing shaft, and the shaft sleeve is fixed on the pedestal. The pedestal and the rotary table both adopt a box structure. The inside of the rotary table is provided with a worm-gear luffing mechanism and a worm-gear hoisting mechanism. The housing of the rotary table is in rotation connection with a crank handle that is connected to the worm-gear luffing mechanism. By setting the slewing mechanism able to slew at any angle within 360 degrees, the miniature crane of the invention realizes expansion of the movement range of heavy objects from two dimensions to three dimensions.

A tension fabric display structure incorporates segmented tubular framework permitting easy on-site assembly and disassembly and includes an integral drive motor coupled to a drive shaft that is supported for rotation within a framework tube. Each one of a plurality of attraction elements suspended from the framework tube housing the drive shaft is rotationally driven by a coupling assembly connected to the drive shaft.

The invention provides a crawler drill for coal mine underground floor suction roadway all-dip-angle hole drilling and a construction method thereof. The drill comprises a platform system, a stabilizing system, an operation system, a power system, an angle regulating system and a drilling system. A crawler vehicle body is used as a platform, and can realize the three-direction stable support; anda host of the drilling system can rotate in two planes parallel and vertical to the crawler vehicle body through being controlled by a machine frame of the angle regulating system, the rotary platform, a sub rotary device and a main rotary device, and can be positioned in any angle. The crawler drill overcomes the defects in the prior art; the hole forming inclination angle can be fast regulated;the transportation dimension can be reduced; the drilling construction condition can be clearly observed; and the problem of rock layer drilling difficulty can be solved. The crawler drill has the obvious advantages that the carrying and the transportation are convenient; the all-dip-angle hole drilling construction efficiency is high; and the drilling is safe and reliable, and the like.

A self-loading and self-unloading type crawler chassis comprises a right crawler beam, a left crawler beam and a middle frame; the middle frame is connected with a main machine structure needing bearing; the middle frame is arranged between the right crawler beam and the left crawler beam and keeps an interval with the ground; the right crawler beam and the left crawler beam are detachably connected with the middle frame; the middle frame is provided with a supporting device having a folding state and an unfolding state; when in the folding state, the supporting device draws back to the middle frame and does not make contact with the ground; and when in the unfolding state, the middle frame is supported on the ground through the supporting device, the supporting device supports the whole crawler chassis and the weight of the upper portion, and the original space between the middle frame and the ground is kept. The crawler chassis and the upper main machine structure are loaded onto or unloaded from a transportation flat car through the self structure, and the self-loading and self-unloading type crawler chassis has the characteristics of being simple in structure, convenient to dismount, high in mechanism stability, low in manufacturing cost and the like.

The invention relates to a connecting joint for a beam, a column and an inclined strut of a box section of a boiler steel frame and a construction method of the connecting joint. The connecting joint comprises a joint plate, a column end plate, a beam end plate and a connecting end plate, wherein the joint plate is fixed with the inclined strut by welding; the column end plate is fixed on the joint plate by welding, and is connected with a column bolt; the beam end plate is fixed on the joint plate by welding, and is connected with a beam bolt; and the connecting end plate is fixed on the beam by welding, and is connected with the column bolt. The construction method comprises the following steps of: welding the joint plate, the column end plate and the beam end plate, and connecting the column end plate and the beam end plate with bolts; and performing welding and bolt connection on the connecting end plate. According to the invention, the joint size is reduced greatly, the requirements of other transportation tools are met, and the transportation cost is reduced.

The invention relates to a separating stage (100) for the removal, by inertial impaction, of components, in particular paint particles and / or paint agglomerates, contained in a fluid flowing through.At least one separating segment is provided, which has, on the inlet side, at least one acceleration segment (12) for the fluid, in which the fluid is accelerated in a through-flow direction (102), and a first impaction surface (13) for components contained in the fluid is arranged downstream of the acceleration segment (12). The invention further relates to a separating unit (200) having at leastone separating stage (100), to a kit, to a transport cart, to a coating system, and to a method for producing a separating unit (200).

The invention discloses an embedded guide rail type double-arm fire rescue system for a super high-rise building. The embedded guide rail type double-arm fire rescue system comprises an embedded guide rail, a rescue car and a transportation car, wherein the rescue car and the transportation car are arranged side by side up and down along the embedded guide rail, and are independently driven to run; two rescue mechanical arms are symmetrically arranged on the two sides of the rescue car; the end parts of the mechanical arms are rescue platforms; during rescue, the rescue car moves to the preset height along the embedded guide rail; the mechanical arms stretch out to perform rescue; and the transportation car is responsible for transporting personnel and objects. According to the embedded guide rail type double-arm fire rescue system, the technological problem that conventional fire fighting devices and super high-rise fire rescue do not fit at home and abroad can be solved from the system, the fire rescue system can quickly climb to the arbitrary height of the building from the outer part of the building, fire points in the building can be extinguished, trapped personnel can be rescued emergently, and besides, the system can be further utilized for construction and maintenance of an outer wall of the building.

The invention relates to the technical field of a crawler-type chassis, in particular to a cylinder slideway double-limiting telescopic crawler-type chassis. The cylinder slideway double-limiting telescopic crawler-type chassis comprises a left crawler frame, a left sliding assembly, a right crawler frame, a right sliding assembly, a center rotating frame and hydraulic oil cylinders; the left crawler frame is fixedly connected with the left sliding assembly; the right crawler frame is fixedly connected with the right sliding assembly; the left sliding assembly and the right sliding assembly are respectively connected with the center rotating frame; and the hydraulic oil cylinders are arranged between the center rotating frame and the left crawler frame as well as the right sliding assembly. According to the cylinder slideway double-limiting telescopic crawler-type chassis, the structure is easy to process; when the processing difficulty is reduced, the machining quantity is also reduced; and when the integral cylinder slideway double-limiting telescopic crawler-type chassis works, the crawler frames extend to the greatest extent to increase the earthing width so as to improve the stability of the integral cylinder slideway double-limiting telescopic crawler-type chassis in the working process; when the integral cylinder slideway double-limiting telescopic crawler-type chassis travels and transports, the crawler frames retract to the greatest extent, so that the cylinder slideway double-limiting telescopic crawler-type chassis can pass through a narrow channel, the transportation size of a drilling machine can be reduced and the cylinder slideway double-limiting telescopic crawler-type chassis is easy to use and popularize.

The invention discloses a two-prop shielding type electro-hydraulic-control top-coal caving hydraulic support. By the aid of the hydraulic support, the problems that existing four-prop hydraulic supports are stressed unevenly, damaged easily and moved slowly are solved. A top beam is in an integrated structure, two upright props which are arranged on the left and right sides are arranged between the top beam and a base, tops of two upright props are inclined forwards, an electro-hydraulic control system which is communicated with a cavity of each of the upright props is arranged inside the cavity, electro-hydraulic control systems comprise double-inlet double-return quick liquid inlet and return systems, upright props are communicated with a quick-liquid-supply hydraulically-controlled one-way valve and a hydraulically-controlled one-way valve, the quick-liquid-supply hydraulically-controlled one-way valve is communicated with an electro-hydraulic-control reversing valve, the return disconnection valve is communicated with the electro-hydraulic-control reversing valve and the hydraulically-controlled one-way valve, an automatic back-flushing filter is communicated with the quick-liquid-supply hydraulically-controlled one-way valve and the electro-hydraulic-control reversing valve, and the electro-hydraulic-control reversing valve is communicated with the hydraulically-controlled one-way valve. The hydraulic support is reasonable and reliable in structural design, the working resistance reaches 17000kN, and the automatic exploitation of fully mechanized caving units with 10-20m super high seams can be achieved.

The invention discloses a self-moving temporary support device beside gob-side entry retaining. The device comprises two rows of side-by-side support bodies connected by oil cylinders, the first row of support body is close to the gob-side entry retaining side, and the second row of support body is close to the gob area side, each row of support body comprises 1-5 support unit connected in order, and each support unit consists of a top beam, a hydraulic column, a single wobbling rod and a pedestal, the top beam is connected to the pedestal through the hydraulic column and single wobbling rod, wherein each row of support body at least has 1 support unit equipped with four-bar linkage; the second row of support body is provided with gangue blocking plates close to the gob area side; the tails of the two rows of support bodies are equipped with gangue blocking plates; and horizontal push-pull oil cylinders and longitudinal push-pull oil cylinders are disposed between the two rows of support bodies. The device provided by the invention solves the problem of mechanical safe gangue blocking in the gob area of gob-side entry retaining, at the same time greatly improves the entry retaining speed from a current daily entry retaining of 10m to 15-20m, is in line with the high yield and high efficiency requirements of coal mines, and can be widely applied in coal mining, metallurgy and other industries.

The invention discloses a split absorbing-type heat exchange unit and a heat exchange method thereof and belongs to the field of heating, ventilating and air conditioning. The split absorbing-type heat exchange unit is composed of a hot-water absorbing-type heat pump, a conventional water-water heat exchanger and a waterway system, the hot-water absorbing-type heat pump is composed of two parts, a generator and a condenser form one part, and an absorber and an evaporator form another part; the waterway system is divided into a primary-side waterway system and a secondary-side waterway system, the primary-side waterway system is sequentially connected with the generator, a high-temperature side of the water-water heat exchanger and the evaporator and then returns to a concentrated heat source, the secondary-side waterway system is divided into two ways, one way is connected with a low-temperature side of the water-water heat exchanger while the other way of the same is connected with the absorber and the condenser, and then the two ways of secondary water join to form one way to supply heat to a user. A split structure is adopted, so that transport size of the unit is reduced effectively, convenience is brought to transporting and mounting, and comprehensive cost is lowered.

A hydraulic thruster for vessel. The hydraulic thruster is intended for incorporation into a modular vessel thruster system, and is easily installed onto, and removed from, a vessel having such system. A housing is tiltably attached to a bracket, which in turn is removably mounted to a vessel. A cylinder is rigidly attached to the housing, and a tube is extensibly and rotatably disposed within the cylinder. A thrust means is disposed at a lower end of the tube. The instant thruster incorporates positive redundant down-tilt stop means, increased extension / retraction range, reduced shipping size, and means for securely and removably attaching the thruster to a vehicle deck.

A mobile short-wave antenna system includes: an expandable antenna assembly for transmitting signals; a boom assembly hinged to the antenna assembly at one end; a rotation assembly hinged to the boomassembly; a push arm mechanism connected to the boom assembly and the rotation assembly; a push line mechanism connected to the antenna assembly and the boom assembly; and a traction assembly locatedon the other side of the rotation assembly and connected to the rotation assembly. In the mobile short-wave antenna system, the push arm mechanism drives the boom assembly to rotate and the push linemechanism drives the antenna assembly to rotate, such that the antenna assembly can be lifted to a specified height when required without the need to build a large scaffold or dismantle the built large scaffold, thereby reducing the cost. Further, the antenna assembly can be lowered back to its original position when not in use, and kept in a horizontal state under the driving of the push line mechanism, thereby effectively reducing a transportation size, facilitating transportation, and avoiding the need for aerial maintenance of the antenna assembly.

The invention relates to an internally-movable photovoltaic power station array group, including at least one photovoltaic power station array unit. A support is provided with fixing screw holes in the bottom and is fixed on the ground by fixing screws. The support is provided with connection screw holes in the bottom and is connected by connection screws, forming lower connection points between the array unit and the array group. A support plate is welded on a middle framework, has a through hole in the middle, and is connected to a through hole nut welded on the top of the support with a rotating shaft screw, forming an upper connection point between the array unit and the array group. An upper framework and a lower framework are hinged to the middle framework through a hinge. A photovoltaic assembly is placed in the upper framework, the middle framework and the lower framework and is connected with screws, so as to form the photovoltaic power station array unit or array group. The upper framework and the lower framework in the array unit and the photovoltaic assembly therein can be unfolded or folded around the middle framework, the photovoltaic assembly can be unfolded to adjust the light angle for improving the power generation efficiency, and the photovoltaic assembly can be folded to reduce the size for achieving the whole transport.

The invention belongs to the technical field of substation equipment, and particularly relates to an intelligent vehicle-mounted mobile transformer substation. The transformer substation comprises a power transformation vehicle and a power distribution vehicle connected with the power transformation vehicle, and the power transformation vehicle comprises a power transformation vehicle body, an HGIS and a main transformer, and the HGIS is installed on the vehicle body; the power distribution vehicle comprises a power distribution vehicle body, a prefabricated cabin, an electrical secondary protection chamber and a medium-voltage power distribution chamber; a control cubicle is arranged on the HGIS of the power transformation vehicle; the control cubicle is provided with an in-situ protection and measurement and control device sub-machine I; the instrument terminal box is provided with an in-situ protection and measurement and control device sub-machine II; and a medium-voltage switch cabinet in the medium-voltage power distribution room is provided with an in-situ protection and measurement and control device sub-machine III, a measurement and control device sub-machine IV, a measurement and control device sub-machine V, a measurement and control device sub-machine VI and a measurement and control device sub-machine VII. The number of cables and the number of screen cabinets between two vehicles are effectively reduced, products are highly integrated, the transportation size is reduced, safety and reliability are achieved, field installation is easy, and the intelligence andreliability of the products are improved.

A work light cage attachment system which includes a cage that securely attaches over the glass opening on a work light. The cage includes opposite top and bottom frame members and opposite side frame members. Attached to the comers of the top and bottom frame members are rearward extending legs. Each extending leg includes a perpendicularly aligned foot that, during assembly, is placed inside the gap between the edge of the faceplate and the glass and extends outward to prevent disengagement of the cage from the faceplate. Attached to each foot on the top and bottom frame members is a C-shaped clip which engages a raised lip formed on the inside surface of the faceplate. The lips prevent the cage from being removed from the work light without a tool, thus meeting United Laboratories code.

The invention discloses an air bag type metal scale extreme high voltage equalizing shield comprising a spherical or annular inflatable inner container, a support rack and a metal voltage equalizing element, wherein a central axis part of the inflatable inner container is provided with a via hole, two electrode connecting pins are arranged in the via hole, and an outer surface of the inflatable inner container is covered with installation seats that are distributed regularly; the support rack is mounted on a part, positioned below the via hole, of the inflatable inner container; the support rack is connected with the inflatable inner container via the installation seats; the metal voltage equalizing element comprises scale-shaped metal sheets and metal screw rods welded at central parts of the scale-shaped metal sheets, the metal screw rods are screwed into the installation seats, the scale-shaped metal sheets are round in shape, edge parts of the scale-shaped metal sheets are provided with rolled rims, all the scale-shaped metal sheets are connected with each other via conductor wires, and each ring of the scale-shaped metal sheets at a horizontal layer is provided with an open circuit. Via the above mode, the air bag type metal scale extreme high voltage equalizing shield can be conveyed without being disassembled, on-site assembling operation is not required, and the voltage equalizing shield can come to service after being inflated.

The invention discloses a high-altitude fire extinguishing robot. The robot comprises a chassis, a power and control mechanism and a working device; walking mechanisms are arranged on the two sides ofthe chassis; a rotary platform is connected to the chassis through a rotary mechanism; a mechanical arm is arranged in the middle of the upper side of the rotary platform; the walking mechanisms, themechanical arm and the rotary mechanism are connected with the power and control mechanism; a fire-fighting tripod head is connected to the outer end of the mechanical arm and is connected with a fire-fighting head; a water mist nozzle is arranged on the fire-fighting head; the working device comprises a water tank and a water device assembly connected to the water tank and the water mist nozzle;the water device assembly is connected with the power and control mechanism; and the power and control mechanism is connected with a remote control terminal. According to the robot, the mechanical arm is arranged on the rotary platform in a foldable mode, so that the robot is relatively small in transportation size; the robot can be used in a remote control mode, the mechanical arm can be controlled to extend to a proper height to extinguish fire after the robot arrives at a destination, the working range is widened, and the safety of fire fighters can be better protected.

The invention discloses a shearing fork bending metamorphic mechanism type manipulator. Each manipulator claw comprises a plurality of metamorphic mechanism units which are connected in series, wherein each metamorphic mechanism unit comprises a plurality of secondary metamorphic mechanism units which are connected in parallel; and each secondary metamorphic mechanism unit comprises a shearing fork mechanism and an aberrant shearing fork mechanism. The shearing fork bending metamorphic mechanism type manipulator comprises a truss rod. Compared with a traditional joint type manipulator, the shearing fork bending metamorphic mechanism type manipulator has the advantages that the mass is light; the structure rigidity is high; the folding size is small; the folding and unfolding ratio is high;the conveying size is saved; the plane structure is simple; the degree of freedom is small; the driving is simple; the manipulator claws can move in a wide range with little driving; in addition, themanipulator claws are linearly unfolded and are capable of bending and grabbing after unfolding in place, so that a target can be widely enveloped and grabbed, and as a result, the unfolding spaces of the manipulator claws can be saved; and interference between the manipulator claw and the grabbing target can be avoided, and thus a target object can be conveniently grabbed.

The invention relates to a 110kV duplex-winding vehicle-mounted transformer lead design method, which comprises the following steps of: arranging a high-voltage bushing in the short axis direction of an oil tank, leading a high-voltage phase line A phase, a high-voltage phase line B phase and a high-voltage phase line C phase into a wire outlet cylinder, arranging a clamping and fixing mechanism in the wire outlet cylinder, and leading out the high-voltage bushing through connecting the wire outlet cylinder. The invention further relates to a lead structure of the 110kV duplex-winding vehicle-mounted transformer, the high-voltage bushing is arranged in the short axis direction of an oil tank, the high-voltage bushing is connected and led out through a wire outlet cylinder, a high-voltage phase line A phase and a high-voltage phase line B phase are axially led out, and the high-voltage phase line A phase and the high-voltage phase line B phase are supported and clamped through relatively independent wire clamps and led to the high-voltage bushing side of the oil tank. The C phase of the high-voltage phase line is radially led out at the side close to the wire outlet cylinder, and a clamping and fixing mechanism is arranged in the wire outlet cylinder. The conventional arrangement mode of the high-voltage bushings needs a large fuel tank width size, the width of the fuel tank is reduced, high-voltage phase lines do not interfere with one another, wiring is more visual, the creepage possibility is reduced, and the high-voltage bushings have good mechanical strength and reliable electrical strength.

The invention discloses a large mining height gas extracting caterpillar drill for a coal mine gallery. The large mining height gas extracting caterpillar drill at least comprises a body and a shift drilling device, wherein the body comprises a caterpillar body; two sides of the lower end of the caterpillar body are respectively provided with a caterpillar assembly; the shift drilling device is arranged at the front end of the caterpillar body and comprises a vehicle body connecting plate, a tail end connecting plate, a telescopic amplitude changing device, an orientation adjusting device, a dip angle adjusting device and a feeding device; one end of the telescopic amplitude changing device is connected to the vehicle body connecting plate, and the other end of the telescopic amplitude changing device is connected to the tail end connecting plate; the telescopic amplitude changing device ensures that the tail end connecting plate integrally parallelly moves in a plane relative to the vehicle body connecting plate; therefore, the large mining height gas extracting caterpillar drill is wide in drilling height range, and has the characteristic of wide range for adjusting the height of a center hole of the drill; in crossheading construction for a working face in tunneling, a construction range is wide, the whole working face can be involved, and the drill has obvious advantages in large mining height gas extraction drilling.

The invention discloses a self-moving temporary support device beside gob-side entry retaining. The device comprises two rows of side-by-side support bodies connected by oil cylinders, the first row of support body is close to the gob-side entry retaining side, and the second row of support body is close to the gob area side, each row of support body comprises 1-5 support unit connected in order, and each support unit consists of a top beam, a hydraulic column, a single wobbling rod and a pedestal, the top beam is connected to the pedestal through the hydraulic column and single wobbling rod, wherein each row of support body at least has 1 support unit equipped with four-bar linkage; the second row of support body is provided with gangue blocking plates close to the gob area side; the tails of the two rows of support bodies are equipped with gangue blocking plates; and horizontal push-pull oil cylinders and longitudinal push-pull oil cylinders are disposed between the two rows of support bodies. The device provided by the invention solves the problem of mechanical safe gangue blocking in the gob area of gob-side entry retaining, at the same time greatly improves the entry retaining speed from a current daily entry retaining of 10m to 15-20m, is in line with the high yield and high efficiency requirements of coal mines, and can be widely applied in coal mining, metallurgy and other industries.

The invention relates to a mobile steam-injection boiler and a moving method thereof, the mobile steam-injection boiler comprises a first module, a second module, a third module, a fourth module and a fifth module, the first module comprises a boiler operation board, a combustor, an air blower, a radiation section and a water-water heat exchanger, and the second module comprises a convection section. The third module comprises a plunger pump and an air compressor, the fourth module comprises a power distribution system, and the fifth module comprises emptying equipment. The first module is installed on a first transport vehicle, the convection section is installed above the tail of the radiation section, and the first module, the second module, the third module, the fourth module and the fifth module are connected through corresponding pipelines. The steam injection boiler can be recycled, the steam injection requirement of a newly developed thickened oil block is met, the problem of the steam injection requirement of the newly developed thickened oil block is solved, and investment is reduced.

The invention belongs to the technical field of power catwalk equipment on oilfield drilling sites, and relates to a foldable power catwalk, comprising a catwalk main frame, a power pipe frame, a folding ramp, a folding transfer arm, a traction winch and an extension frame; The front end of the frame is connected with the rear end of the extension frame, more than two sets of power pipe racks are installed on both sides of the catwalk main frame, one end of the power pipe rack is hinged to the catwalk main frame, and the rear end of the catwalk main frame is hinged to the lower end of the folding ramp. The lower end of the ramp is provided with a traction winch, the upper end of the folding ramp is fixedly connected to the upper end of the drilling platform, and a folding transfer arm is nested inside the upper end of the main frame of the catwalk. The power catwalk and the folding transfer arm provide convenience for the transportation of the power catwalk. At the same time, the displacement compensation structure of the power pipe frame protects the ground level, and the folding ramp can be applied to the drilling floor of various heights, ensuring the working stability of the power catwalk. practicality.

The invention discloses a two-prop shielding type electro-hydraulic-control top-coal caving hydraulic support. By the aid of the hydraulic support, the problems that existing four-prop hydraulic supports are stressed unevenly, damaged easily and moved slowly are solved. A top beam is in an integrated structure, two upright props which are arranged on the left and right sides are arranged between the top beam and a base, tops of two upright props are inclined forwards, an electro-hydraulic control system which is communicated with a cavity of each of the upright props is arranged inside the cavity, electro-hydraulic control systems comprise double-inlet double-return quick liquid inlet and return systems, upright props are communicated with a quick-liquid-supply hydraulically-controlled one-way valve and a hydraulically-controlled one-way valve, the quick-liquid-supply hydraulically-controlled one-way valve is communicated with an electro-hydraulic-control reversing valve, the return disconnection valve is communicated with the electro-hydraulic-control reversing valve and the hydraulically-controlled one-way valve, an automatic back-flushing filter is communicated with the quick-liquid-supply hydraulically-controlled one-way valve and the electro-hydraulic-control reversing valve, and the electro-hydraulic-control reversing valve is communicated with the hydraulically-controlled one-way valve. The hydraulic support is reasonable and reliable in structural design, the working resistance reaches 17000kN, and the automatic exploitation of fully mechanized caving units with 10-20m super high seams can be achieved.