39results about How to "Control opening angle" patented technology

The invention discloses a blade-type server system which comprises a blade server, a management module, a fan module for cooling the blade server and a fan outlet and is further equipped with a fan outlet separator corresponding to the blade server which is arranged in one fan outlet side close to the blade server, wherein the management module is used for defining the operation status of each blade server and control the closing or opening of the fan outlet separator corresponding to each blade server according to the operation situation; the fan outlet separator is closed or opened according to the indication of the management module. The invention further discloses a cooling method for blade-type sever systems, solving the problem that the cooling effect of the blade-type server system in prior art is not good. The proposal of the invention can use the finite fan outlet reasonably and dynamically according to the operation situation of each blade server, which improves the cooling efficiency of the system and reduces the power consumption of the system.

The invention discloses a quasi-circular fruit and vegetable picking end executor, method and robot. The end executor comprises a box, a clamping mechanism and a cutting mechanism. An electromagnet and a motor are arranged in the box. The clamping mechanism comprises an elastic moving component, a fixing block, left claw mechanical fingers, right claw mechanical fingers and a sliding restraining disc for controlling the open angel of the left claw mechanical fingers and the right claw mechanical fingers. The left claw mechanical fingers and the right claw mechanical fingers penetrate the sliding restraining disc and are connected with the fixing block through pins respectively, and gaps for enabling the left claw mechanical fingers and the right claw mechanical fingers to move are formed in two sides of the fixing block respectively. One end of the elastic moving component penetrates the center of the electromagnet, and the other end penetrates the fixing block to be fixedly connected with the sliding restraining disc. The motor is connected with the cutting mechanism. The end executor is simple in structure, convenient to use and provided with certain fruit and vegetable picking universality and represents the light weight purpose of mechanical development.

The present invention is visual intelligent composite fire alarm and its operation method. The visual intelligent composite fire alarm consists of one composite detector comprising video camera assembly, photoelectronic smoke sensing detector, detection and communication chip and resistive temperature sensor; one controller comprising total control unit, communication control unit, image processing unit and I / O control unit; one visual manual alarm; and communication cable. The present invention can reflect site condition in image mode.

The invention provides a material receiving device of a paver. A conveying electromagnetic vibrator is arranged at the left side of a conveying hopper and is connected with the left side of the conveying hopper through a first lead screw set, and the lower end of the conveying hopper is connected with the upper end of a conveying pipeline; a stop plate is arranged at the right side of the conveying hopper and the right side of the conveying pipeline, the upper end of the stop plate is connected with the upper end of the conveying hopper, and the lower end of the stop plate is connected with the right side of the conveying pipeline; a discharging pipeline is arranged at the right side of the stop plate, a heat dissipating plate is installed at the top end of the discharging pipeline and is arranged on the discharging pipeline, a discharging temperature sensor is arranged in the middle of the bottom end of the discharging pipeline, and the electromagnetic vibrator is arranged at the outer side of the bottom end of the discharging pipeline; discharging baffles are arranged on a discharge port, the movable discharging baffle is connected with the fixed discharging baffle, a sliding connecting plate is arranged at the inner side of the movable discharging baffle, a hydraulic air cylinder is arranged at one side of the fixed discharging baffle, and one end of the hydraulic air cylinder is hinged to a transmission up arm. The angle of the stop plate can be adjusted, the spilling amount of a paving material is accurately controlled, and the paving effect is more uniform.

The invention relates to the technical field of air conditioners, in particular to a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit comprises a shell, a front panel and multiple driving mechanisms; an intake port is formed in the front end of the shell; the front panel comprises multiple sub panels; and each driving mechanism singly drives one sub panel. Compared with a traditional air conditioner, the indoor unit has the advantages that the intake port is larger, so that the air volume is high, and the mechanism strength and the stability are better; the indoor unit is simpler and more elegant on appearance, so that the beauty of the indoor unit of the air conditioner can be improved; and after the indoor unit of the air conditioner is stopped working, the multiple sub panels can totally close the intake port under the effect of the driving mechanisms, so that dust and particles in air cannot enter the indoor unit, and no influence on the heat exchange efficiency of an evaporator is guaranteed. In addition, as each sub panel is driven by one single driving mechanism, multiple intake modes can be realized, and various intake demands are satisfied.

The invention discloses a packing box with a liftable inner box body. The packing box comprises the inner box body and an outer box body formed by one piece of paper. The inner box body can be in multiple shapes according to the requirements. In the embodiment, the triangular prism inner box body or the semi-cylinder-structure inner box body is selected. The outer box body is of a cuboid structurewhen closed, and when the outer box body is opened, the opening angle is controlled through a spring bolt arranged on a dustproof front piece. A box inner plate bears the inner box to enable the inner box body to be lifted upwards while the outer box body is opened. The packing box is novel in model, and the opening angle of the packing box can be controlled through reasonable application of thespring bolt. Through reasonable application of the box inner plate of the packing box, the inner box body is lifted while the packing box is opened, the interestingness of the packing box is improved,and the promotion capacity of the packing box is improved. The packing box is high in display performance and exhibition performance.

The invention relates to the technology of track spending, and aims at providing a suspender having an insurance hanging panel and capable of simultaneously lifting two steel rails. The suspender comprises two clamp handles with intersect arrangement, an upper end of the clamp handle is connected with a wire rope, a lower end is an inwardly projected jaw; the suspender comprises at least a snap-ininsurance hanging panel, a through hole is arranged at the upper end of the insurance hanging panel, two sides of the lower end are provided with protruded steps corresponding to the jaw, an intersect position of the through hole arranged at the upper end of the insurance hanging panel and two clamp handles co-uses a mandrel of the clamp handle, and the insurance hanging panel is capable of freely rotating by winding the mandrel of the clamp handle. a stable integral framework is formed between the insurance hanging panel and the suspender main body, stable lifting attitude can be ensured when two steel rails are simultaneously lifted, bearing is balanced, an open angle of the jaw can be conveniently controlled through a jaw folding operating lever, and the positioning effect of a shift rod is used for conveniently fixing the jaw with an opening angle while hoisting. The jaw opens the positioning and departs from the operating lever after the steel rails are clamped, the travelling operation is conveniently carried out, and the labor intensity is mitigated.

The invention discloses an electrically controlled single-action telescopic drilling tool for borehole hydraulic mining. The telescopic drilling tool consists of a high-pressure water delivery system, a power transmission system, an electrically controlled single-action system, a water gun arm extending-retracting system and a slag discharging pipeline. The designed water gun can stretch out for the design distance along the radial direction, so that the range of borehole hydraulic mining is greatly widened, and the production efficiency is improved. According to the power transmission system, the rotating angle and speed of a stepping motor can be accurately controlled by a computer, so the opening angle of the water gun can be accurately controlled, and the water gun can stably extend and retract by utilizing a transmission mode of a ball screw. Moreover, the drilling tool is provided with the electrically controlled single-action system, the rotation torque of the drilling tool is provided by the stepping motor of the electrically controlled single-action system instead of a drill stem, and a phenomenon that a power transmission cable is damaged in the process of rotating the drill stem is avoided.

The invention discloses an electronic control telescopic drilling tool for borehole hydraulic mining. The electronic control telescopic drilling tool for the borehole hydraulic mining is composed of a high pressure water conveying system, a power transmission system, a hydraulic giant telescopic system and a deslagging channel. A hydraulic giant of the electronic control telescopic drilling tool can stretch out for a designed distance in the radial direction, the range of the borehole hydraulic mining is enlarged greatly, and production efficiency is improved. The electronic control telescopic drilling tool for the borehole hydraulic mining has the advantages that the rotating angle and speed of a stepping motor can be controlled accurately through a computer, the opening angle of the hydraulic giant can be controlled precisely, and the stretching and retracting actions of the hydraulic giant are stable through the transmission mode of a ball screw.

The invention discloses a cover opening mechanism for an electric kettle. The cover opening mechanism comprises a handle base (2), a kettle cover (4), a handle cover (14), a kettle cover connecting base (3), a latching rocker arm (13) and a cover opening button (12), wherein the kettle cover connecting base (3) is fixed on the handle base (2), the latching rocker arm (13) is hinged on the kettle cover connecting base (3) through a hinging shaft (11) of the latching rocker arm (13), the hinging shaft (11) of the latching rocker arm (13) is provided with a rocker arm torsional spring (16), the cover opening button (12) is arranged on the handle cover (14) and corresponds to the latching rocker arm (13) in the vertical direction, a connection part of the kettle cover (4) is hinged on the kettle cover connecting base (3) through a kettle cover hinging shaft (7), the kettle cover hinging shaft (7) is provided with a kettle cover torsional spring (15), the connection part of the kettle cover (4) is provided with an upper kettle cover leaning head (9), the latching rocker arm (13) is provided with a locking shoulder (10), and in a closed state, the locking shoulder (10) props against the upper kettle cover leaning head (9). Due to the structure, the cover opening mechanism has the characteristics of simple and reasonable structure, convenience in operation and use, stable and reliable work, good opening effect, long service life and the like.

The invention discloses a circlip type refill opening door. The door comprises a door panel and a hinge panel, wherein the door panel and the hinge panel are in rotary connection through a hinge shaft; the hinge shaft is fixed on the door panel, and comprises a bent part; one end of a circlip is connected with the hinge panel, while the other end of the circlip is hinged on the bent part. The door can automatically open or close by applying certain acting force on the refill opening door through the design of the door panel, the hinge shaft, the hinge panel and the circlip, therefore, the operation is very convenient. The circlip generates pretightening force during installing, so the refill opening door is ensured to be closed tightly without refilling oil. Furthermore, a bump is arranged under the circlip on the door panel correspondingly, so the opening angle of the refill opening door can be controlled.

The invention discloses an anti-falling safety device of a lifting scaffold, and particularly relates to the technical field of scaffold falling prevention. The anti-falling safety device comprises a supporting plate, a storage groove is formed in one side of the supporting plate, a storage mechanism is arranged in the storage groove, and a mounting mechanism is arranged on the other side of the supporting plate; the storage mechanism comprises a transmission lead screw, the transmission lead screw is sleeved with a first threaded ring, and a second threaded ring is arranged on one side of the first threaded ring. The storage mechanism is arranged, a servo motor rotates forwards to drive the transmission lead screw to enable the first threaded ring to move leftwards, meanwhile, the second threaded ring moves rightwards under the action of threads, in this way, a stretching elastic strip begins to contract, therefore, rapid closing and storage of a protective net are achieved; multiple buffering protection effects are achieved in the protective net, the buffering effect is effectively achieved, safety is greatly improved, operation is easy, use is easy, more time and labor are saved, the repeated utilization rate is higher, and practicability is better.

The invention provides a sealing claw pole and axial magnetic circuit permanent magnetic brushless direct-current motor. A motor stator is characterized in that claw poles are uniformly and perpendicularly fixed around a base, central lines of the claw poles are parallel to axis of a rotating shaft, a coil winding is mounted on each claw pole in a sleeved manner, the base of the motor stator and the coil windings on the claw poles of the base are covered and sealed by plastic to form a barrel-shaped plastic sealing member, and a cover covers and seals the barrel-shaped plastic sealing member; the rotating shaft of a motor rotor penetrates the stator base, an iron core is perpendicularly fixed, permanent magnet magnetic steel is uniformly fixed on the iron core, and sensor magnetic steel is fixed at the center of the other side of the iron core and corresponds to a Hall sensor fixed on the inner wall of the cover. The sealing claw pole and axial magnetic circuit permanent magnetic brushless direct-current motor has the advantages that an axial magnetic circuit is adopted, and the motor is large in torque, high in efficiency, small in size and space and high in system integrity.

The invention provides an operating method of a square steam kettle, and belongs to the technical field of kitchenware.The operating method solves the problem that heating of an existing steam kettle is uneven when spread food is processed.The operating method of the square steam kettle includes the following steps that a kettle cover is removed, and food materials and water are added into a square kettle body so that the foot materials can be spread at the bottom of the kettle body in a slab-shaped mode, and it can also be guaranteed that the food materials are sufficiently heated; saturated steam with the pressure of 0.19-0.25 MPa and the temperature of 119-130 DEG C is led into an interlayer of the kettle body through a steam pipe; the food materials in the kettle body are fried in a stirred mode in the direction of the long side of the square kettle body to enable the food materials to be evenly heated, mixed and stirred to be even, and the kettle body is covered with the kettle cover for braised roasting; after set time is up, the kettle cover is removed and stays at the portion suitable for operation, the cooked food materials in the square kettle body are output through a discharging opening or shoveled out through a feeding opening.The operating method has the advantages that spreading is convenient, and heating is even.

The invention discloses an automatic material conveying and spreading machine capable of preventing material accumulation. The automatic material conveying and spreading machine comprises a material receiving device, a travel switch, a control unit and an execution unit, wherein the travel switch is mounted at the upper part of a scraping plate conveying belt of the spreading machine, is a normally closed switch and can be turned on / off according to the accumulation volume of the material on the scraping plate conveying belt of the spreading machine; the control unit realizes the opening / closing of the line of an automatic material conveying device on the scraping plate conveying belt of the spreading machine according to the operation of an operator; the execution unit is used for realizing the conveying of the material on the scraping plate conveying belt of the spreading machine; and the material receiving device comprises a feeding hopper, a feeding pipeline, a material blocking plate, a heat dissipation plate, a discharge pipeline, an electromagnetic vibration device and a discharge temperature sensor. Automatic control on the material conveying device of the spreading machinecan be realized, and the material conveying part of the spreading machine can continuously feed materials to prevent the discharge pipeline from being blocked by the materials, so that the manpower is saved and the spreading effect is more uniform.

The invention discloses a guard room partition structure comprising a safety door. The safety door comprises a door frame and a door leaf, a rotating center rod is vertically fixed to one side of the door frame, and the rotating center rod is sleeved with one side of the door leaf. A door lock is arranged on the other side of the door leaf, and a lock groove matched with the door lock is formed in the door frame. The connecting position of the outer side of the door leaf and the rotating center rod is provided with a vertical first long hole, and the position, corresponding to the first long hole, of the rotating center rod is provided with a second long hole. The rotating center rod is internally provided with a sliding groove axially extending and communicating with the second long hole, and the sliding groove is internally slidably connected with a locking rod of an L-shaped structure. A plurality of transverse rotating grooves are distributed in the edge of the first long hole in the length direction, and the transverse distances between the multiple rotating grooves are different. When the door leaf rotates, the transverse part of the locking rod can be embedded into the rotating grooves, and the maximum opening angle of the door leaf is determined according to the transverse distances between the rotating grooves. The guard room partition structure has the advantages that using is safer, conditions are convenient to observe, and the guard room partition structure better accords with the humanized management idea.

The invention discloses an electrically controlled single-action telescopic drilling tool for borehole hydraulic mining. The telescopic drilling tool consists of a high-pressure water delivery system, a power transmission system, an electrically controlled single-action system, a water gun arm extending-retracting system and a slag discharging pipeline. The designed water gun can stretch out for the design distance along the radial direction, so that the range of borehole hydraulic mining is greatly widened, and the production efficiency is improved. According to the power transmission system, the rotating angle and speed of a stepping motor can be accurately controlled by a computer, so the opening angle of the water gun can be accurately controlled, and the water gun can stably extend and retract by utilizing a transmission mode of a ball screw. Moreover, the drilling tool is provided with the electrically controlled single-action system, the rotation torque of the drilling tool is provided by the stepping motor of the electrically controlled single-action system instead of a drill stem, and a phenomenon that a power transmission cable is damaged in the process of rotating the drill stem is avoided.

The invention provides a square steam cooker, and belongs to the technical field of kitchen utensils, aiming at solving the problem of an existing cooker cover that an angle opening position is fixed. The square steam cooker comprises a cooker body, a cooker cover and cover turning components, wherein a cavity is formed in the cooker body; a material inlet is formed in the cavity; the cooker cover is fastened on the material inlet; the two cover turning components are symmetrically connected to the cooker body in a fixed mode and the cover turning components are connected to the cooker cover in a rotatable mode; each of the cover turning components is provided with a fixed torsion shaft, a compression spring and a movable torsion shaft; inclined planes, which are mutually attached, are formed on the fixed torsion shaft and the movable torsion shaft; the cooker cover rotates and is flatly attached to the cooker body; the movable torsion shaft firmly abuts against the end face of the fixed torsion shaft; the cooker cover can rotate around the cover turning components; the inclined planes of the movable torsion shaft and the fixed torsion shaft can slide oppositely; and a torque of the compression spring is greater than a torque, generated from gravity, of the cooker cover. The square steam cooker disclosed by the invention has the advantages that the cooker cover can be opened by any angles and the steam cooker is convenient to operate.

The invention discloses a flap valve head loss experiment testing system and a using method thereof. The testing system comprises a pipeline, a pipeline supporting structure, a flap valve opening angle control device, a transparent plastic box and a testing subsystem, wherein the pipeline is formed by sequentially connecting a cross-flow submersible electric pump, a PVC right-angle diffusion elbowI, a regulating gate valve, a PVC horizontal straight pipe, a PVC right-angle contraction elbow, a PVC vertical straight pipe, a PVC right-angle diffusion elbow II, an organic glass horizontal straight pipe, an organic glass gradual change pipe and a transparent plastic pipe. The tail end of the transparent plastic pipe is arranged in the transparent plastic box, the cross-flow submersible electric pump is located in the transparent plastic box, the flap valve body to be tested is connected to the upper portion of the tail end of the transparent plastic pipe in a hinged mode, and the testingsubsystem is used for testing and collecting data. The specification and size of the model flow channel can be adjusted through the design of the transition section, the turning section and other pipesections; the water head losses of the flap valves of different types and specifications and sizes under different opening degrees can be measured by changing the arrangement type, size and opening angle of the flap valves.

The invention provides a steel cable joint braiding clamp comprising a jacking block, a T-shaped connecting block, connecting pins, an adjusting nut, clamping heads and an adjusting handle, a first screw rod is arranged at the right end of the jacking block, the adjusting nut is arranged on the first screw rod, the adjusting nut is arranged in the T-shaped connecting block, and a rotating cavity for containing the adjusting nut is formed in the middle of the T-shaped connecting block. The adjusting nut is in clearance fit with the rotating cavity, the upper portion and the lower portion of the T-shaped connecting block are connected with the clamping heads through the connecting pins, a second screw rod is arranged at the right end of the T-shaped connecting block, a threaded hole matched with the second screw rod is formed in the left end of the adjusting handle, and an adjusting inclined face is arranged at the left end of the adjusting handle. The adjusting inclined face is matched with and jacked against the right ends of the clamping heads by rotating the adjusting handle. By means of the steel cable joint braiding clamp, the angle of the steel cable joint can be adjusted within the range of 0-360 degrees the optimal braiding angle is found out, and therefore the braiding difficulty is effectively reduced, and the manual braiding time is shortened.

The invention belongs to the technical field of daily articles and particularly relates to a convenient flowerpot lifting frame. The convenient flowerpot lifting frame comprises a triangular frame body, two sides of the triangular frame body are connected via a shaft, the shaft is parallel to the bottom side of the triangular frame, a casing is movably sleeved with the shaft, a support leg is connected with the casing, and the length of the support leg is smaller than the vertical length from the shaft to the bottom side of the triangular frame body; an arc strip is arranged below the shaft and between the two sides of the triangular frame body, and frame hooks bent upwards are arranged on the bottom side of the triangular frame. The convenient flowerpot lifting frame has the advantages that during use, a flowerpot can be well arranged on the convenient flowerpot lifting frame and can be moved more conveniently, and small space for storage is occupied when the flowerpot lifting frame is not used.

The invention relates to a luggage box and in particular relates to an effort-saving stair climbing type luggage box. The luggage box comprises a box cover and a box body. The luggage box is characterized in that two pulleys connected through a long shaft are symmetrically arranged on the side edges at the bottom of the box body; stair climbing sledges are mounted on the back surface, on which the pulleys are arranged, of the box body; tu-shaped steel blocks (tu is a Chinese character) penetrating the long shaft are arranged on the stair-climbing sledges; fixing blocks are arranged on the box body; steel pieces with round holes are corresponding to the fixing blocks and are mounted on the stair-climbing sledges. Compared with an existing stair-climbing luggage box, the luggage box is hard to tilt, good in stability, convenient, practical, simple in structure, low in manufacturing cost, attractive in appearance and small in size, and can be widely applied to daily life for stair climbing.

The invention relates to the technical field of intelligent window openers, and discloses an intelligent window opener capable of sensing climate change and taking corresponding measures. The intelligent window opener comprises a transmission mechanism main body, wherein a driving gear is movably installed in the transmission mechanism main body, a magnet is fixedly installed on the inner wall of the driving gear, a fixed wheel is fixedly installed in the driving gear, a baffle is fixedly installed on the outer wall of the fixed wheel, a rotating plate is movably installed on the top of the fixed wheel, a sliding way is formed in the inner wall of the left side of the fixed wheel, and a sliding plate is connected to the interior of the sliding way in a sliding mode. An ejector rod is pushed out when a rotating wheel deflects, so that the driving gear rotates through the attraction of the magnet, and a window is opened; and an aqueous solution is introduced into the sliding way through a water pipe, so that the position, which is connected with the baffle, of the left side of the sliding plate is changed, the opening angle of the window is controlled, and the effects of automatically opening the window and controlling the opening angle of the window when the temperature rises are achieved.

The invention relates to the technical field of car auxiliary brake and provides a resistance plate assembly for car deceleration. The resistance plate assembly for car deceleration comprises a guard board, bearing pedestals, a resistance plate, a deceleration driving device and a control unit. The guard board is provided with two opposite mounting holes. The guard board is fixedly connected with a base plate of a car body of a car. The bearing pedestals are fixedly arranged in the two mounting holes. The resistance plate comprises a plate body and two mounting bases. The plate body is located below the guard board. The two mounting bases are fixedly arranged at the two ends of the edge of the plate body. The mounting bases are movably connected with bearing holes of the bearing pedestals. The deceleration driving device is arranged between the two mounting holes. The deceleration driving device comprises a supporting frame, a servo motor, a driving output rod and a speed reduction mechanism. A brake information input end and a driving signal output end of the control unit are connected with a brake information sensor and the servo motor respectively. The resistance plate assembly for car deceleration is simple in structure, convenient to use, safe, reliable, capable of increasing wind resistance in the braking process and enhancing the brake effect and little in influence on rigidity performance and strength performance of the car body.

The invention provides a compressor system, an air conditioner and a compressor oil return control method, wherein the compressor system includes: a compressor; a lubricating oil separator connected to the exhaust port of the compressor through a pipeline, The condensate discharged from the compressor is separated from the lubricating oil, and the lubricating oil outlet of the lubricating oil separator is connected to the air return port of the compressor through a pipeline; the electronic expansion valve is set at the lubricating oil outlet of the lubricating oil separator, and through adjusting The opening angle of the lubricating oil separator controls the return speed of lubricating oil in the lubricating oil separator; the temperature detection unit, connected to the control unit, is set on the compressor to detect the temperature in the compressor; the control unit, connected to the electronic expansion valve, according to the compression The temperature inside the machine controls the electronic expansion valve to adjust the opening angle. The invention can flexibly adjust the opening angle of the electronic expansion valve according to the temperature in the compressor, so as to ensure that the amount of lubricating oil in the compressor is in a relatively stable state.

The invention discloses a quasi-circular fruit and vegetable picking end executor, method and robot. The end executor comprises a box, a clamping mechanism and a cutting mechanism. An electromagnet and a motor are arranged in the box. The clamping mechanism comprises an elastic moving component, a fixing block, left claw mechanical fingers, right claw mechanical fingers and a sliding restraining disc for controlling the open angel of the left claw mechanical fingers and the right claw mechanical fingers. The left claw mechanical fingers and the right claw mechanical fingers penetrate the sliding restraining disc and are connected with the fixing block through pins respectively, and gaps for enabling the left claw mechanical fingers and the right claw mechanical fingers to move are formed in two sides of the fixing block respectively. One end of the elastic moving component penetrates the center of the electromagnet, and the other end penetrates the fixing block to be fixedly connected with the sliding restraining disc. The motor is connected with the cutting mechanism. The end executor is simple in structure, convenient to use and provided with certain fruit and vegetable picking universality and represents the light weight purpose of mechanical development.

The invention discloses a mounting structure of wall space movable member. The mounting structure comprises a fixed frame, a wall space movable member, a rotary shaft piece and an angle control piece. The fixed frame is a frame mounted to a door hole; the wall space movable member is mounted on the fixed frame through the rotary shaft piece; the angle control piece is connected to the left side of the wall space movable member and the fixed frame; the rotary shaft piece comprises an upper rotary shaft and a lower rotary shaft; the upper rotary shaft is divided into two portions: one portion, a part of which is fixedly connected to the fixed frame, is an upper connecting portion and has a semispherical groove while the other portion, a part of which is fixedly connected to the upper side frame of the wall space movable member, is a lower connecting portion and has a semispherical bump. The connection of the upper and lower connecting portions is semispherical. The mounting structure of the wall space movable member disclosed by the invention is simple and stable in structure and controllable in opening angle, and can solve the problems of mounting complexity, opening range, stability of similar overhaul door leaves and etc.

The invention discloses a blade-type server system which comprises a blade server, a management module, a fan module for cooling the blade server and a fan outlet and is further equipped with a fan outlet separator corresponding to the blade server which is arranged in one fan outlet side close to the blade server, wherein the management module is used for defining the operation status of each blade server and control the closing or opening of the fan outlet separator corresponding to each blade server according to the operation situation; the fan outlet separator is closed or opened accordingto the indication of the management module. The invention further discloses a cooling method for blade-type sever systems, solving the problem that the cooling effect of the blade-type server systemin prior art is not good. The proposal of the invention can use the finite fan outlet reasonably and dynamically according to the operation situation of each blade server, which improves the cooling efficiency of the system and reduces the power consumption of the system.

The invention discloses a screw-driven flap gate applied to the field of water conservancy facilities. The bottom of a door body of the screw-driven flap gate is hinged to hinge seats. The back side of the door body is provided with one or more support rod pairs. The upper ends of two support rods in each support rod pair are hinged to the door body, and the lower ends of the two support rods in each support rod pair are hinged to a trolley. Each trolley is provided with a nut. A base plate is provided with tracks in the width direction of a river way. The trolleys are movably mounted in the tracks. The river way is internally provided with a threaded rod. The threaded rod is provided with rightwards-screwing threaded sections and leftwards-screwing threaded sections. The nuts on all the trolleys are connected with the rightwards-screwing threaded sections and leftwards-screwing threaded sections in an engaged manner correspondingly. The shaft end of the threaded rod is connected witha rotation driving mechanism. According to the screw-driven flap gate, the threaded rod is driven by the rotation driving mechanism to rotate; the included angle of every two support rods is driven tochange through the corresponding nut; and the door body is pushed to rotate to be erected to stop water or lie down to drain the water. The screw-driven flap gate is high in reliability and can be locked at any open degree; the opening and closing speed is high; and no leakage or pollution is caused. The screw-driven flap gate can replace an existing gate and is applied to the fields such as river way flood prevention and irrigation.