99results about How to "Close flexible" patented technology

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 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 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 belongs to oil production process configuration of an oil field, and particularly relates to a multilateral well fracturing hanging well completion process device which comprises a sleeve (1), a positioning hanging packer (2), a main well open hole (3) and a main well staged fracturing pipe string (4). A multilateral well open hole (6) is formed in the circumference wall of the sleeve (1), wherein the upper end of the multilateral well open hole (6) is inclined, and the lower end of the multilateral well open hole (6) is horizontal. A pre-windowing surround-and-watch hanger (8) is connected on a main well hole fracturing inserting pipe (7) by utilization of a rotary pup joint (12), wherein the main well borehole fracturing inserting pipe (7) is arranged in a sleeve of the main well open hole (3). A multilateral well borehole sealing back-inserting pipe (9) is connected at the lower end of the pre-windowing surround-and-watch hanger (8), a hard axis joint (10) is arranged in the middle of the multilateral well borehole sealing back-inserting pipe (9), and a multilateral well borehole stages fracturing pipe string (11) is arranged in the horizontal section of the multilateral well borehole sealing back-inserting pipe (9). A removable heavy descending whipstock (5) is connected at the lower end of the main well borehole fracturing inserting pipe (7) in the main well sleeve (1), and the positioning hanging packer (2) is connected with the lower end of the removable heavy descending whipstock (5). According to the multilateral well fracturing hanging well completion process device, construction cost is reduced, expenses of a new well are saved and oil production of a single well is increased.

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 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 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 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 discloses a nuclear power spent fuel pool sluice gate, which comprises a gate frame and a gate leaf, wherein the gate leaf is fixedly arranged in the gate frame via a set of hinge devices; the gate leaf is provided with a set of fastening devices; the gate leaf is provided with a gate leaf driving device; the junction of the gate frame and the gate leaf is provided with a layer of sealing element; and a set of reinforcing ribs is arranged in the gate leaf. The nuclear power spent fuel pool sluice gate disclosed by the invention has the advantages of flexibility in opening and closing, shock and pressure resistance and low leakage rate.

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 provides an air-conditioner remote control method and device and electronic equipment, and relates to the technical field of air conditioners. According to the method and device, when apreset time range is achieved in real time, user location information of a user is obtained, and a distance value is determined according to the user location information and preset air-conditioner location information every other a preset time interval; and when multiple distance values meet preset conditions, a control command is transmitted to an air conditioner through a server. Whether the user prepares to leave a reference location or close to the reference location is preliminarily determined in real time; then the distance value between the current location and the reference location is determined according to the user location information and air-conditioner location information of the reference location; and whether a switching-on command or a switching-off command is transmittedto the air conditioner is determined according to the distance value finally. Therefore, automatic switching-on or switching-off of the air conditioner is achieved, the effect of flexibly switching on or switching off the air conditioner is achieved, and the user experience is improved.

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 invention discloses an operation method of a virtual menu bar on a mobile phone interface. The operation method comprises the following steps: detecting the event of double-click on a physical key; calling a system function when the event of double-click on the physical key happens; and displaying or closing the virtual menu bar according to the system function. By the operation method, the virtual menu bar can be flexibly displayed and closed, and a mobile phone display screen is prevented from being occupied during program running.

The invention discloses a lithium battery short circuit protection method and system. The lithium battery short circuit protection method comprises the following steps: detecting a voltage signal on a detection resistor of main loop current inside a lithium battery system, and sequentially processing the voltage signal through a filter circuit and an amplification circuit so as to obtain a voltage value within a set delay time; comparing the voltage value with a preset protection threshold by comparing latch circuits, and outputting a result to a restoring circuit; if the comparison result shows that load short circuit is caused, transmitting a closing signal to a switching tube driving circuit through the restoring circuit, and closing a main output loop of a lithium battery through the switching tube driving circuit. By adopting the lithium battery short circuit protection method and the lithium battery short circuit protection system, the protection threshold and the set delay time can be flexibly adjusted, can be applicable to battery cells of different models and different application situations, and can be flexibly configured as manual restoring or automatic restoring, so that the battery can be applicable to multiple situations of manned monitoring, unmanned monitoring and the like, and the reliability and the practicability can be improved due to flexible closing and starting modes after protection.

The invention relates to an interlayer door / window, which comprises a door / window frame, at least two layers of glass plates inside the frame or outer transparent interlayer material, and a blind device. Wherein, said blind device comprises a blind frame, a drum, a blind curtain, a compress roller, and at least one driver. The blind frame is at one end of door / window frame and connect the inner chamber between layers; the drum via its rotational axle is rotationally mounted inside the blind frame; one end of blind curtain is fixed on the drum, while another end is free; the compress roller is inside the blind frame to compress the blind curtain or connect the drum via blind curtain; at least one driver is connected to the compress roller or connected to the drum and the compress roller. The invention arranges the blind curtain inside interlayer, without affecting view and occupying indoor room, with wider application.

The invention discloses a single-axle hydraulic driving device for a large-sized mining dump vehicle. The single-axle hydraulic driving device comprises a first driving device for driving two front wheels of the vehicle to rotate and a second driving device for driving two rear wheels of the vehicle to rotate, wherein the two rear wheels of the vehicle are connected with each other through a rear driving axle; the second driving device is connected with the rear driving axle; the first driving device comprises a first engine and a first transmission system for driving the front wheels to rotate; an output shaft of the first engine is connected with a driving shaft of the first transmission system; an output shaft of the first transmission system is connected with the two front wheels of the vehicle respectively; the second driving device comprises a second engine and a second transmission system for driving the rear driving axle to rotate; an output shaft of the second engine is connected with the rear driving axle through the second transmission system. The single-axle hydraulic driving device is high in load bearing capacity and operability, and can be used for realizing front wheel separate driving, rear wheel separate driving or all-wheel driving of the mining dump vehicle.

The invention discloses an intermediate frequency furnace water removal device for prestressed steel strands. The intermediate frequency furnace water removal device is composed of an upper top plate, a lower bottom plate, a hinge, a bolt, a hinge pin, a screw nut and a base. The upper top plate and the lower bottom plate of the device are fixed through the hinge, and the upper top plate and the lower bottom plate can be flexibly opened and closed. According to the intermediate frequency furnace water removal device, blow holes are formed in the same positions of the upper top plate and the lower bottom plate, and the water removal beneficial effect can be maximized. The screw nut of the device is screwed on the bolt, the bolt can slide up and down in the hinge pin, and thus the height of the device can be better adjusted. The intermediate frequency furnace water removal device for prestressed steel strands is simple in structure, convenient to use and low in manufacturing cost.

The invention provides a rain and sewage flow splitting automatic control device. The rain and sewage flow splitting automatic control device comprises a rain and sewage flow confluence pipe, an overflow device and a lever adjusting mechanism, wherein a water inlet pipe of the overflow device is communicated with the rain and sewage flow confluence pipe; a water outlet pipe of the overflow device is communicated with a sewage discharging pipe; the lever adjusting mechanism is arranged on the overflow device; when the water level of a river channel is lower than a certain threshold value, the lever adjusting mechanism enables the overflow device to be opened, water in the rain and sewage flow confluence pipe is discharged from the sewage discharging pipe through the water outlet pipe; when the water level of the river channel is equal to or higher than the certain threshold value, the lever adjusting mechanism enables the overflow device to be closed, the water in the rain and sewage flow confluence pipe is discharged into the river channel. According to the rain and sewage flow splitting automatic control device provided by the invention, automatic flow splitting of rain and sewage is realized depending on natural rising and falling of the water level of the river channel; both electric driving and manual action are not needed, the opening and the closing of the overflow device are very flexible, the installation and debugging of the overflow device are simple, the manufacturing cost is low, and a practical value is obtained.

The invention discloses a system and a method for reducing the low-temperature corrosion of a boiler smoke exhaust temperature inhibition air preheater, and relates to the field of comprehensive optimization of power station boiler auxiliary machine systems. The system comprises a branch air supply system which communicates with a main flue gas cooling system; the branch air supply system comprises a branch air supply fan, an air blowing port of a branch air blower communicates with the other inlet of a heat exchanger through a branch cold secondary air duct, the other outlet of the heat exchanger communicates with the main flue gas cooling system through a branch heat secondary air flue, and the branch air blower communicates with an inlet air box of the branch air blower through an inletair flue of the branch air blower. The system comprises a cold secondary hot air duct communicating between a branch heat secondary air duct and a secondary air system. The branch air blower communicates between the cold secondary hot air duct and the branch air blower inlet air duct of a branch air blower of the branch air supply system. The device comprises a primary air re-hot air duct communicating between a branch hot air duct and a primary air system. According to the system, the problems of high smoke discharge temperature of a boiler, low temperature corrosion of the air pre-heater and low boiler efficiency are solved.

The invention relates to a rotary gate automatically controlled by waterpower and provided with a horizontal shaft. The rotary gate comprises a lock chamber, bearing bodies, a gate shaft, a rotary gate body, suspension mechanisms, a cover plate bridge, a service bridge, a water-stopping unit and hydraulic vibration-damping units. Each bearing body is composed of a bearing groove, a bearing, a bearing gland and a bolt; the gate shaft is fixed in the bearing grooves through the bearings; the upper end of the rotary gate body is installed on the gate shaft through the suspension mechanisms; each hydraulic vibration-damping unit is composed of a piston cylinder, a piston and a piston rod; and each piston cylinder is connected to the service bridge at the side in the downstream direction through a bridge hinge, and each piston rod is connected to the lower end of the rotary gate body through a gate hinge. According to the invention, the state of water flow in the lock chamber is stable, the water storage and discharge capacity can be improved, the automatic opening and closing of the rotary gate can be controlled completely by means of the condition of upland water, the opening degree of the rotary gate can be automatically adjusted at any moment along with the water level change, and the problem of siltation in front of the gate can be solved.

The invention relates to an automatic floating-type lock gate. The automatic floating-type lock gate comprises a lock chamber, rolling wheel grooves, rails, a lock gate body, rolling wheels, a water stop and hydraulic damping devices. Gate piers and a gate lock base plate form the lock chamber; the lock gate body is installed between the gate piers on the two sides; the rolling wheels are arranged on the positions, on the two sides, of the bottom of a bottom face plate, the rolling wheels are distributed on the rails, the rails can be fixed onto the bottom faces of the rolling wheel grooves, and the hydraulic damping devices are fixed onto the inner sides of the rolling wheel grooves. By means of the automatic floating-type lock gate, the opening degree of the lock gate can be automatically adjusted at any time with the high-low changes of water levels of upland water, the gradual opening performance of the lock gate is good, and the opening and the closing are more strength-saving and flexible. The automatic floating-type lock gate does not need external power, and the automatic opening and closing of the lock gate can be achieved totally through the upland water.

The invention discloses a lighting control system and method with an intelligent shoe. The system comprises a sensor module used for detecting user action information and transmitting a user motion signal, and an actuator module used for receiving the user motion signal and controlling the switch-on of a lighting device, judging whether the user motion signal is obtained in a preset time period after the lighting device is started, and controlling the lighting device to be switched off if not. The sensor module is arranged on the intelligent shoe or embedded in the intelligent shoe. The actuator module is arranged in a circuit of the lighting device. According to the system and the method, by using the sensor module arranged on the intelligent shoe and the actuator module arranged in a circuit of the lighting device, corresponding light is on when the intelligent shoe is touched, and the light is off automatically when the intelligent shoe is still. The lighting control system is intelligent, flexible, convenient and practical.

The invention discloses a vacuum servo system and an electric vehicle, and relates to the technical field of vehicle braking. The vacuum servo system comprises a pressure sensor, a vehicle speed sensor, a pedal speed sensor, a vacuum processing unit, a vacuum servo unit and an electric vacuum pump. The vacuum processing unit adjusts a starting threshold value and a closing threshold value of the electric vacuum pump according to environment pressure data, vehicle speed data and treading speed data, and when the vacuum degree is lower than the starting threshold value, the vacuum servo unit controls the electric vacuum pump to be started. Compared with a servo system in the prior art, since the pressure sensor, the vehicle speed sensor and the pedal speed sensor connected with the vacuum servo unit are adopted, the starting threshold value and the closing threshold value of the electric vacuum pump can be flexibly adjusted according to external conditions, therefore starting or closing of the electric vacuum pump is flexibly controlled, the using frequency of the vacuum servo system is lowered, the service life of the vacuum servo system is prolonged, the practicability is high, and the cost performance is high.

The invention discloses a smart card and a method to realize fixed dialing and forbidden dialing by the smart card, comprising steps of: creating a fixed dialing number file in a data storage area of the smart card and creating a fixed dialing open / close and a forbidden dialing open / close option in a development tool menu module of the smart card; then under condition of distributing and activating call control service, when the user calls actively, the smart card judges whether receives a call control instruction sent by a mobile device; after receiving the call control instruction, judging the open / close option of the fixed dialing and forbidden dialing and executing corresponding call movement according to judgment result. The invention makes the fixed dialing and forbidden dialing function be applied on the mobile device supporting development tool packet via a development tool packet technology.

The invention discloses a protective valve seat structure of a gate valve, comprising a valve body, wherein through holes are arranged in the valve body, a flashboard mutually matched with the through holes is arranged in the valve body, the upper end of the flashboard is connected with a valve rod arranged on the valve body, a diagonal upper guard plate is fixedly arranged in the through hole above the flashboard, and a separate lower guide plate is fixedly arranged in the through hole below the flashboard. The invention has the advantages that simple structure and convenient operation are realized; the arranged diagonal upper guard plate can prevent materials from entering a guide rail region of the flashboard during the material falling down process so as to reduce the material stacking phenomenon of the guide rail region of the flashboard, keep the flashboard to flexibly open and close, reduce the direct abrasion of the flashboard from the materials and prolong the service life of the flashboard; the arranged separate guide plate can support the flashboard when the flashboard is closed so as to prevent the deformation of the flashboard due to the material load; simultaneously, the residual materials in the guide rail region of the flashboard can be cleared during the flashboard opening and closing processes, thus the blocking phenomenon of the flashboard can be avoided.

The invention discloses a flange type silencing check valve. The flange type silencing check valve comprises a valve body, a first flange arranged at a water inlet end of the valve body, and a secondflange arranged at a water outlet end of the valve body; a cavity is formed in the valve body; a guide device is arranged in the cavity, and is used for placing water currents to reversely flow; the guide device comprises a first sealing plate, a connecting rod, a cover plate and a valve base; the valve base is fixedly arranged in the valve body and near the water outlet; the valve base is provided with a first through hole for enabling the connecting rod to pass through; one end of the connecting rod is connected with the first sealing plate; the connecting rod penetrates through the valve base, and can perform a reciprocating motion in the valve base; and the other end of the connecting rod is connected with the cover plate. Through the mode, the flange type silencing check valve is provided with the guide device to achieve flexible closing, good check effect, capability of effectively reducing the closing noise, novel structure, smooth liquid passing and low local water head loss.