227results about How to "Open flexible" patented technology

This invention relates to a slide outer rotary multifunction door and window, which contains frame and a number of window wings, wherein frame having three axle rail on top and bottom frame, said window wings having end convex, edge, lock fastener, connector, three axle roller, fastener handle and active latch, it also can be installed with active castor on lower end of wing for being used as door. Said invention has advantages of easy open at any angle, safety, reliable and fine sealing performance.

The invention discloses a sealed hot channel-full air returning dried-air energy central air conditioning system for a data center. The sealed hot channel-full air returning dried-air energy central air conditioning system comprises a dried-air energy central air conditioning unit; the dried-air energy central air conditioning unit is connected with the data center through an air returning pipe and can recycle return air in the data center and process the return air so that the return air can become air meeting the air supply condition; and the dried-air energy central air conditioning unit is further connected with the data center through an air supply pipe, and the air meeting the air supply condition can be fed into the data center through the air supply pipe and a machine room air supply outlet. According to the sealed hot channel-full air returning dried-air energy central air conditioning system for the data center, the full year cool supply requirement of the data center can be effectively ensured, the phenomenon that disordered air distribution occurs in the data center can be avoided, and meanwhile reasonable adjustment of three operation modes can be achieved according to different weather conditions.

The upper part of a valve body without mechanical external communication or mechanical abrasion is provided with a valve cover with a sleeve; an internal cavity of the valve cover is provided with a self-operated valve core and a valve rod; the valve rod is inserted into a sleeve in the valve cover in the valve cavity; the upper end of the valve rod is internally provided with a magnetic column; the external surface of the valve cover sleeve is sleeved with a round sleeve which can move up and down out of the sleeve; the round sleeve is internally provided with a magnetic ring which can move up and down; the valve rod can also move up and down driven by the magnetic column; the external surface of the round sleeve is sleeved with a recovery spring; a transmission rod is supported by the upper part of the round sleeve; the top part of the transmission rod is connected with a temperature thermal sensitive element; a piston column is arranged in the valve core; the interior of the piston column is provided with a pressure release hole; an upper opening of the pressure release hole is communicated with the upper space of the valve cover and can be covered by the sealing cover on the valve rod; an opening at the lower side surface is communicated with a water inlet of the valve body.

The invention provides a dedicated line opening method and device, relating to the technical field of communication, and aiming at opening a dedicated line more quickly and flexibly. The method is applied to a dedicated line management system, and the system includes at least two access routers, centralized control equipment and a business server, wherein each access router is connected to a corresponding UTN, each UTN is connected to an IP bearer network to form a backbone network, the at least two access routers have established tunnel communication based on the backbone network, and the business server is used to provide business services. The method includes the following steps: enabling the centralized control equipment to receive a dedicated line opening request message sent by the first access router; sending an authentication request message to the business server according to the dedicated line opening request message to ensure that the business server authenticates the firstaccess router; receiving an authentication response message sent by the business server; and if the authentication response message indicates that the authentication of the first access router is successful, enabling the centralized control equipment to send a dedicated line opening response message to the first access router.

The invention relates to a sliding energy-saving door system, in particular to an aluminum alloy lifting sliding energy-saving door system. The aluminum alloy lifting sliding energy-saving door system is characterized in that: an upper rim and a lower rim of the energy-saving door system consist of a guide rail profile and a rim profile respectively; a door leaf is provided with a mounting port, the upper guide rail profile is provided with a raised rib which is movably arranged in the mounting port, and a leaf sealing rubber strip seals a gap between the raised rib and the mounting port; a pulley is arranged in the mounting port of the lower door leaf, the lower guide rail profile is provided with a raised rib which is provided with a slide rail, the pulley is arranged on the slide rail, and a leaf upper port sealing rubber strip is arranged between the raised rib and the mounting port; the mounting port of the left door leaf is provided with a leaf sealing plate and sealed; and a lock hardware is arranged in the mounting port of the right door leaf, and a sealing rubber strip gap is formed between the right rim and the mounting port. The aluminum alloy lifting sliding energy-saving door system has the characteristics of compact and skilful structure, stability, sealing property, better pressure resistance, sound insulation, heat preservation, energy conservation, luxury, high grade and more convenient manufacture, installation and use.

The invention discloses a gear and rack driving type automatic locking mechanism, relating to a locking mechanism used for a file cabinet. The invention resolves the problems that the prior lock on the file cabinet can not realize the functions of automatic closing and locking, the prior locking mechanism is dumb when unlocked and locked. One end of a lock (6) is connected with the lower end of an upper connecting rod (5), the upper end of the upper connecting rod (5) penetrates a casing (9), the other end of the lock (6) is connected with a mechanism support (4), gears (2) and racks on a rack lever (3) are meshed, the gears (2) are meshed with hand pulling racks (1), an energy storage elastic part is connected with an energy storage elastic part connecting rod (4-3), and the lower end of the energy storage elastic part (8) is fixed on the casing (9). The gear and rack driving type automatic locking mechanism realizes that the door of the file cabinet can be closed and locked at the same time, and solves the problem of the rebounding of the cabinet door. The gear and rack driving type automatic locking mechanism has the advantages of flexible unlocking and locking, excellent stability, low cost and convenient unlocking and locking.

The invention provides a kitchen lampblack discharge system which has good effect and is convenient to maintain. The kitchen lampblack discharge system comprises a range hood, a check valve, a smoke discharge pipe and a public flue, wherein the smoke discharge pipe is directly and hermetically connected with the public flue, the check valve comprises a vertical pipe which is internally provided with a circular valve plate, the valve plate is rotatably supported on the pipe wall of the vertical pipe by virtue of a transverse shaft which radially penetrates through the valve plate, and the pipe wall of the vertical pipe is provided with a blocking point; when the valve plate is in a horizontal state, the edge of the valve plate is depressed on the blocking point, a weight gain plate is fixed on the valve plate which is located above the blocking point and is close to the blocking point, the upper end and lower end of the vertical pipe are respectively sleeved on the lower end of the smoke discharge pipe and the air outlet of the range hood. In the invention, the check valve is additionally arranged between the air outlet of the range hood and the smoke discharge pipe, and the check valve is connected with the air outlet of the range hood and the smoke discharge pipe in a dismountable way, so as to be convenient to dismount and clean.

The invention discloses a light adjustment and temperature adjustment control system for a sightseeing lift, which belongs to the technical field of lift control systems. The light adjustment and temperature adjustment control system comprises a detection module, a control module and an output module, wherein both the detection module and the output module are connected with the control module; the output module comprises electrically-controlled liquid crystal light adjusting glass which is connected with the control module; and the detection module comprises a light sensing device which is connected with the control module. The invention further discloses a light adjustment and temperature adjustment control method for the sightseeing lift. According to the system and the method, the control module is used for transmitting a processing result signal to the output module when illumination intensity is very high and is higher than a first preset illumination intensity value according to the detection of the light sensing device, and the electrically-controlled liquid crystal light adjusting glass is closed and is driven to enter a light insulating and heat insulating state, so that strong sunlight irradiation is insulated, the generation of high temperature in a lift car due to irradiation is avoided, the consumed electric energy of an air conditioner is reduced, and the aims of saving energy and protecting environment are fulfilled.

The invention relates to an infiltration technique and device. The technique comprises three phases, namely infiltration preprocessing, infiltration processing and infiltration postprocessing. The infiltration device comprises an infiltration basket, a hoist hook, a degreasing pot, a cleaning pot, a centrifugal pot, a baking oven, an infiltration pot, a vacuum pump, a glue storing pot, an air compressor, a washing pot, a solidifying pot and a pressure test device, wherein all the components are arranged in a straight line. Due to the fact that the infiltration pot is cylindrical, influence of sewage on a production site can be effectively avoided. Due to the fact that the infiltration pot is locked with a method that a sealing lock ring is inflated by a lock ring cylinder and both a toothed ring of a pot cover and the lock ring are manufactured with whole materials, sealing performance is good, operation is safe and fast, the pot cover can be opened and closed automatically and fast, no relative motion exists between the pot cover and a sealing ring, friction does not exist, opening is flexible, and the service life is long. The infiltration technique and device have the advantages that the device is compact and reasonable in structure, the whole production site is beautiful, logistics is smooth, and fixed location management and civilization and cleanliness of the production site can be ensured.

The invention discloses a pneumatically-controlled locking device for a mine air door, comprising a first air door, a second air door, a first gas cylinder and a second gas cylinder, and also comprises a pneumatic control box, a mechanical interlock box, a muffle, a first traveling block and a second traveling block, wherein the pneumatic control box is connected with the first gas cylinder and the second gas cylinder respectively by valves; the first gas cylinder is connected with the first air door; the second gas cylinder is connected with the second air door; the mechanical interlock box is connected with the first air door and the second air door respectively by the first traveling block and the second traveling block; and the muffle is fixed on the mechanical interlock box. The pneumatically-controlled locking device for the mine air door can ensure a ventilation system to work normally, utilizes the gas cylinders to pull guide pulleys, simultaneously utilizes a mechanical interlock so as to enable the two air doors not to be opened simultaneously, and has the automatic interlocking function.

The invention relates to an oblique-shaft type hydraulic self-control gate comprising gate piers, a gate floor plate, a gate plate, a waterstop, an oblique shaft and arc hydraulic damping devices. The gate piers are symmetrically and vertically disposed on two sides of the gate floor plate, and the oblique shaft is disposed on the gate pier on one side and is in rigid connection with the gate pier through an anchoring structure; the lower end of the oblique shaft is fixed at the joint of the gate pier on the side and the gate floor plate, and the upper end of the oblique shaft faces the upstream direction of water flow, and the oblique shaft is mounted obliquely with a 45-degree angle formed between the oblique shaft and the bottom edge of the gate pier of the side; the gate is fixed on the oblique shaft, and the arc hydraulic damping devices are arranged between the gate and one gate pier. By the oblique-shaft type hydraulic self-control gate, opening and closing of the gate can be controlled automatically according to the upstream water level, automatic control of the gate through upstream coming water is realized, a working system of unattended operation is realized, and popularization and application in practice are facilitated.

The invention provides an assembled aluminum wood energy-saving door and window, which is provided with an outer frame and a sash frame, and is characterized in that the outer frame is provided with an aluminum sash layer, aluminum sash connecting strip components which are integrated into a whole with the aluminum sash layer and arranged in the shape of inverted V and / or V, solid wooden frame connecting groove components which are matched with the aluminum sash connecting strip components and arranged in the shape of the V and / or the inverted V, and a solid wooden frame layer which is assembled into a whole with the aluminum sash layer through the solid wooden frame connecting groove components and the aluminum sash connecting strip components; the sash frame comprises an aluminum sash frame layer, aluminum sash frame connecting strip components which are integrated into a whole with the aluminum sash frame layer and arranged in the shape of the inverted V and / or the V, solid wooden sash frame connecting groove components which are matched with the aluminum sash frame connecting strip components and arranged in the shape of the V and / or the inverted V, and a solid wooden sash frame layer which is assembled into a whole with the aluminum sash frame layer through the solid wooden sash frame connecting groove components and the aluminum sash frame connecting strip components. The assembled aluminum wood energy-saving door and window is heat-insulated, heat-preserved, vibration-absorbed and noiseproof.

The invention provides a foam generator assembly and a washing machine. The foam generator assembly comprises a first drain pipe and a foam generator mounted on the first drain pipe. One end of the first drain pipe is provided with a water outlet connected with an outer drum. The foam generator comprises an air pumping device, an air inlet pipe arranged outside the first drain pipe. One end of the air inlet pipe is connected with the air pumping device and the other end of the air inlet pipe communicates with the interior of the outer drum, which is used for air inhalation. The foam generator assembly further comprises an air outlet part arranged in the interior of the first drain pipe and opposite to an air outlet. The air outlet part is connected with the air pumping device. The foam generator assembly has the following beneficial effects: when the air pumping device works to discharge inhaled air by the air inlet pipe through the air outlet part, detergents or washing powder in washing water can be fully dissolved and bubbles generate; clothes are cleaner; meanwhile, friction between clothes and the outer drum during washing is reduced; quality of clothes is protected; and user's experience is improved.

The invention provides a four-bit embedded glass curtain window system. The system consists of a section frame, glass and an open window, wherein an upright column and a cross beam are embedded in a cross beam through a double T-shaped cross beam supported bracket to form the section frame of the curtain wall, and the section frame is connected with a main structure through a steel switching part; the cross beam and the upright column section are separated into a plurality of separated components; the double T-shaped embedded cross beam supported bracket is embedded in a cross beam cavity, and is fixed on the upright column; an open hinge slot is arranged on an opening frame, and a hinge shaft on an opening sash is embedded in the hinge slot; the opening sash is separated into an opening sash body which is subject to surface spray treatment and a glass adhesive stick which is subject to surface anodic oxidation treatment; and the glass adhesive stick is embedded and clamped in a section slot of the opening sash body. By the adoption of the four-bit embedded glass curtain window system, the assembly quality of a curtain wall plate and the safety of a curtain wall component are improved; inside assembly of glass can be realized, dependency on scaffolds, construction baskets and other devices and facilities is reduced, and the glass can be changed conveniently in assembling and daily maintaining processes.

The invention discloses a movable side window of an automatic lifting driver's cab. The movable side window includes a fixed window frame, a movable window, a coil spring balancing mechanism and a main lifting cylinder. The movable window includes a movable window frame, movable window glass and a supporting frame. A clamping groove is formed in the inner plane of the movable window frame for installing the movable window glass, and a handle is installed on the upper part of the movable window frame. Guide wheel shafts are separately fixed to both sides of the movable window frame, and guide wheels sleeve the guide wheel shafts. Sliding blocks are further separately fixed to both sides of the movable window frame, and the supporting frame is fixedly installed at the lower end of the movable window frame. Sealing grooves are formed in the outer side of the inner plane of the fixed window frame, and guide grooves are formed in the directions with included angles of 90 degrees with the left side and the right side of the sealing grooves to move the guide wheels in the guide grooves. Guide rails are arranged on the left side and the right side of the lower half of the fixed window frame, and the sliding blocks sleeve the guide rail. An air cylinder frame is arranged on the lower middle part of the fixed window frame, and a bottom beam is arranged on the lower part of the fixed window frame. The movable side window has an attractive appearance, good sealing properties, flexible opening, high reliability and a long service life, and is an ideal movable side window for a locomotive driver's cab.

The invention relates to a grouping different-well asynchronous CO2-injecting oil extracting method adopting symmetric-type crack distributing. The grouping different-well asynchronous CO2-injecting oil extracting method adopting symmetric-type crack distributing comprises the following steps that in a horizontal well I, an injection control unit I corresponding to an even stage crack is started, and CO2 is injected into an injection oil pipe I and enters the even stage crack; in a horizontal well II, an injection control unit II corresponding to an odd stage crack is started, and CO2 is injected into an injection oil pipe II and enters the odd stage crack; in the horizontal well I, an oil-extracting control unit I corresponding to the odd stage crack is started, and crude oil is extracted from the odd stage crack and enters an oil-extracting pipe I; and in the horizontal well II, an oil-extracting control unit II corresponding to the even stage crack is started, and crude oil is extracted from the even stage crack and enters an oil-extracting pipe II; and at the area between the two horizontal wells, part of the crude oil enters the natural cracks and extracted through the odd stage crack of the horizontal well I and the even stage crack of the horizontal well II. According to the injecting and extracting method, the high seepage capacity of the natural cracks is adopted, and the problems such as water channeling and water logging are prevented.

The upper part of a valve body without mechanical external communication or mechanical abrasion is provided with a valve cover with a sleeve; an internal cavity of a valve cover is provided with a self-operated valve core and a valve rod; the valve rod is inserted into a sleeve in the valve cover in the valve cavity; the upper end of the valve rod is internally provided with a magnetic column component; the external surface of the valve cover sleeve is sleeved with a round sleeve which can move up and down out of the sleeve; the round sleeve is internally provided with a magnetic ring component which can move up and down; the valve rod can also move up and down driven by the magnetic column component; the external surface of the round sleeve is sleeved with a recovery spring; a transmission rod is supported by the upper part of the round sleeve; the top part of the transmission rod is connected with a temperature thermal sensitive element; a piston is arranged in the valve core; the interior of the piston is provided with a water inlet and a water outlet; an upper opening of the water outlet is communicated with the upper space of the valve cover and can be covered by the sealing cover on the valve rod; the opening at the lower surface is communicated with a water inlet of the valve body and can be covered by the sealing cover on the valve rod; an opening on the lower side surface is communicated with the water inlet of the valve body and can be sealed by a sealing ring on the valve rod; when the valve rod moves up and down, the water inlet and the water outlet can be adjusted by proportion.

The invention discloses an electric power protection measuring and controlling device convenient in heat dissipation, the front surface of the device body is provided with a panel, a housing is mounted on the back of the panel, the outer side of the housing is provided with a housing, An upper slot is installed in that middle of the top end of the housing, An upper baffle is mount inside that upper slot, A second electric push rod is mounted on both sides of the bottom end of the upper baffle, A blower is mounted on the bottom of the upper slot, A low slot is provided in that middle of the bottom end of the house, A lower baffle is mounted inside the lower slot, A first electric push rod is mounted on both sides of the top end of the lower baffle, A suction fan is mounted on that top of the lower slot, an inner shell is mounted on the inner side of the outer shell, The rear side of the shell is provided with a control box, and the bottom of the shell is provided with a leg. The suctionfan and the blower of the invention are used together, and the two cooperate with each other to accelerate the air circulation inside the device body, thereby avoiding dead angles and completely extracting heat quickly and quickly, so that the heat dissipation efficiency of the device body is improved, and the working cost is reduced.

The invention provides a start-up preparation method for a fuel cell system. The method comprises the following steps: opening a bypass valve; starting an air compressor of an air supply assembly; starting a hydrogen supply assembly; opening an inlet throttle and an outlet throttle in the air supply assembly; and closing a tailgate valve. The advantages of the method are as follows: the opening ofa fuel cell air supply system is not restricted by the off state of an electric pile, and the starting can be performed before anode hydrogen purging or performed synchronously with the anode hydrogen purging; flexible opening of the fuel cell air supply system under the off state of the electric pile is realized; the air requirements of dilution of mixed air generated by anode hydrogen purging and ventilation of a fuel cell box body are met; the start-up time of the fuel cell air compressor is more flexible; slowing down of the lag effect due to the transient response of the air compressor can be avoided, and the on-off time of the fuel cell can be shortened.

The invention discloses a scroll holder with an automatic dehumidification mechanism. The scroll holder comprises a cylinder (1); a separator (2) is arranged at the bottom of the cylinder (1); a receiving cavity is formed between the separator (2) and the base plate of the cylinder (1); a dehumidification mechanism is arranged in the receiving cavity and comprises a power source (4), a switch (5), a humidity sensor (6), a controller (7), a fan (8) and a rotating vane (9) fixedly connected with the output shaft of the fan (8), wherein the humidity sensor (6) is used for detecting and obtaining a detection signal; the controller (7) obtains a humidity value and compares the humidity value with a preset humidity value; when the humidity value is greater than the humidity value, the controller (7) drives the output shaft of the fan (8) so as to drive the rotating vane (9) to rotate, and then damp air in the cylinder (1) can be sucked from a through hole (3) and discharged from an air outlet (10). The scroll holder with the automatic dehumidification mechanism is capable of realizing storage and dehumidification, and therefore, the utilization efficiency of the scroll holder is improved and the safety of storage and the practicability of the scroll holder are improved.

The invention relates to a quick-opening gate type external pressure air-tightness test tank. According to the quick-opening gate type external pressure air-tightness test tank, a kettle type horizontal quick-opening gate structure is used, a supporting base is arranged on the lower portion of a kettle body, a moving kettle cover is arranged at one end of the kettle body, a kettle cover opening system with a hydraulic motor serving as the motive power is arranged on the moving kettle cover, and a kettle body working platform and a transfer railway are installed inside the kettle body. By the aid of the quick-opening gate structure, pressurization, pressure maintaining and pressure reducing of the kettle body and closing and opening of the kettle cover can be conducted frequently, and the quick-opening gate structure is an ideal device through which test pieces enter the kettle body repetitively. The hydraulic motor is used for substituting for an electrical device, a safety interlocking device and the like, so that the air-tightness test tank can be used in strict operating environments in which frequent opening is conducted and fire lighting is not allowed, the device operating space is reduced, and the economical efficiency and the safety of the device are improved. By the aid of the quick-opening gate type external pressure air-tightness test tank, air-tightness test tanks are used widely.

The present invention discloses a drill bit for drilling, injecting concrete and injecting slurry to enlarge base. It is formed from the following several portions: drill pipe, blade, slurry-injecting channel, left flap, right flap, left-half bit tip and right-half bit tip. Besides, said invention also provides the connection mode of all the above-mentioned portions and its concrete working principle.

The invention discloses a layered flood-discharging and sediment-flushing device for a reservoir. The layered flood-discharging and sediment-flushing device comprises a dam body with a U-shaped longitudinal cross section, wherein the dam body comprises two oppositely arranged side walls (6) and a connecting section (4) for connecting the bottoms of the two side walls (6); three flood discharging openings (7) are formed in the side wall (6) of one side close to the reservoir from top to bottom in sequence; a surface layer flood discharging gate (1), a middle layer flood discharging gate (2) and a bottom flood discharging gate (3) are arranged on the three flood discharging openings (7); a bottom water outlet (13) is formed in the bottom of the side wall (6) of one side away from the reservoir; a water outlet gate (5) is arranged on the bottom water outlet (13); the layered flood-discharging and sediment-flushing device is communicated with a reservoir water body through the flood discharging openings (7). According to the invention, the layered flood-discharging and sediment-flushing device is simple in structure, can discharge muddy water timely, is firm and durable, and can operate stably for long term.

The invention relates to a kind of monostable piston data-transmission intelligent water meter. It is a high-performance new-type automatic and intelligent water meter and possesses the function of automatic meterage, data statistic, data analysis, data transmission and long-distance real-time monitor. It includes a base meter. The base meter and the valve body are connected by the flange. Under the valve body sets the piston valve including a piston cylinder, a piston and a pressure balanced spring. In the upper cover of the piston valve sets a balance path. On the valve body set a computer controlling part with wireless transmission module and a monostability controller. The computer controlling part receives impulse signal and sends out the order to the monostability controller. The monostability controller controls the water check closing or opening the water stopping hole in the balance path. The order sent out by the computer controlling part is transmitted to the CSM memorizer in the controller. The CSM memorizer processes and transmits data to the display. The information is transmitted to the long-distance computer by inner GPRS data transmission module.

The invention discloses a polishing device used for plate processing. The polishing device comprises a rack; a polishing mechanism is fixedly connected to the top of the rack; a dust sucking device isfixedly connected to the top part of the rack and below the polishing mechanism; a material discharging table is slidably connected to the top of the rack and located in a cavity of the polishing mechanism; a driving device is fixedly connected to the bottom of the rack; a controller is fixedly connected to the right side of the rack; the rack comprises a worktable; supporting legs are fixedly connected to two sides of the bottom of the worktable; and sliding chutes are formed in two sides of the top of the worktable. According to the polishing device, through cooperative use of the rack, thepolishing mechanism, the dust sucking device, the material discharging table, the driving device and the controller, a plate can be automatically polished, and manual polishing work of workers is notneeded, so that time and labor are saved, and working efficiency is greatly improved; besides, chips generated during polishing can be adsorbed; and body health of the workers is greatly ensured.

In the prior art, hoisting mechanisms with the hook free falling function have two structures, wherein one structure is achieved by directly adding a sleeve outside a hoisting gear box and controlling the sleeve and a reel through a clutch, and the other structure is achieved by controlling high speed gear ring of the gear box through the clutch; non of the two structures has the wire rope anti-slip function, the wire rope is easy to detach and the rope is at mess; moreover, the conventional hoisting mechanisms have the designing problems of low work efficiency, high energy consumption, incomplete and loose structure, difficulty in manufacturing, high cost, and the like. According to the invention, a dry clutch is used to directly control the reel, so as to achieve the function of hook free falling; when the free falling hook is at work, non of a planet reduction gear, a wet multi-sheet brake, and a driving hydraulic motor is at work; the high-performance hook free falling hoisting mechanism is high in efficiency, low in energy consumption, and simple in structure, realizes wire rope anti-slip and protection function by controlling through a caliper disc brake; the high-performance hook free falling hoisting mechanism solves the congenital deficits of a conventional product in aspects of scheme, structure, and technology, and can excellently meet the requirement of a user in the particular aspect of energy conservation and emission reduction.

The invention discloses an irrigation system capable of performing both sprinkling irrigation and watering and a method for manufacturing the same. The irrigation system comprises a water pump and a main tap-water pipe network. A plurality of columns of pipe branches are vertically led out from the main tap-water pipe network, and a plurality of rows of water pipes communicated with the pipe branches are connected among the plurality of columns of pipe branches so as to form an irrigation pipe network. A plurality of spaced irrigation reservation ports are arranged in each row of water pipes through a plurality of three-way joints, and each irrigation reservation port is connected with the three-way joint to form two ports of which one is provided with an oscillating arm sprinkler for the sprinkling irrigation through a valve while the other is provided with the valve for the watering. The method for manufacturing the irrigation system comprises the following steps: a) leading the pipe branches out; b) connecting all the pipes to form the irrigation pipe network; c) arranging the irrigation reservation ports; d) forming the irrigation system; and the like. The irrigation system and the method for manufacturing the same have the advantages of stable property, easy manufacturing, low cost, labor saving and effort saving, and the like.

The invention relates to a self-operated type fire fighting valve, which belongs to the technology field of building fire fighting equipment. A self-operated type valve core is arranged in the inner cavity of a valve; the upper part of the valve core is inserted in a sleeve pipe in a valve cover, a rubber piston sheet is connected to the lower part of the valve core, the rubber piston sheet can seal or open a water outlet on a valve body; a reset spring is sleeved on the lower part outside the sleeve pipe of the valve cover, the upper part of the reset spring is propped agained the lower end part of a round sleeve, the round sleeve can vertically slide outside the sleeve pipe, the upper part of the round sleeve is propped agained the lower part of a driving rod, and the upper part of the driving rod is inserted inside a temperature sensitive component, and is propped agained the upper part of a corrugated pipe.

The present invention discloses a device for simulating the operation state of a handcart switch cabinet, comprising a base plate (1) with pulleys (2), wherein the two sides of the upper surface of the base plate are respectively provided with a column (3) and a transparent plate (4), the column (3) is sleeved with a slidable upper transverse slat (5) with an upper limiting device and a slidable lower transverse slat (6) with a lower limiting device (8) from top to bottom, and the outer side surfaces of the transverse slat (5) and the lower transverse slat (6) are respectively provided with an upper moving contact (9) and a lower moving contact (10). The handcart body (14) of a handcart switch platform is provided with rollers (15) on the bottom, adjustable struts (16) are connected between a guide rail (13) and the handcart body (14), one side of the upper surface of the guide rail (13) is provided with an aviation plug extension slot (17), the two side surfaces of the base plate (1)are slidable on the guide rail (13), and the column (3) and the transparent plate (4) are movable along with the base plate (1) in the left-right direction.