30 results about "Flapper" patented technology

A scoop collector for court balls includes a container with an open front into which balls can roll through the open front. A push handle is operably connected to the container. A ball retaining device allows the balls to roll into the container and prevents the balls from rolling out of the container. The ball retaining device can include a plurality of flappers, an elastic cord, and / or a roller that extend(s) across the open front of the container. The container can be translucent and can be removably supported on a frame. The push handle can be secured in a fixed position by a hook. Wings can be provided adjacent the open front of the container to funnel balls into the container.

1. The name of the design product: air baffle valve. 2. The use of the design product: control element for air baffle valve, which is used to realize the functions of cut-off, conduction and control of flow in the system. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The present application relates to the technical field of oil exploitation, in particular to a blowout preventer for oil drilling and a use method thereof, which comprises a main pipeline, an inclined surface block is fixedly connected to the inner side wall of the main pipeline, a flow pipeline is fixedly connected to the side surface of the side of the inclined surface block away from the inner side wall of the main pipeline, two sealing blocks are arranged on the outer side wall of the main pipeline, the two sealing blocks are symmetrically arranged and are connected to each other through bolts, and the bolt connection portions of the two sealing blocks are sleeved and communicated with the side wall of the main pipeline. The flow pipeline can be closed by using the first and second flappers, and in the process of closing, the flowing liquid flows to the upper port of the main pipeline through the plurality of through holes, and the force acting on the first and second flappers is much smaller than the force acting on the flow pipeline directly closed by the liquid impact.

The present disclosure relates to a flapper rearrangement tool to rearrange a broken flapper inside a tubing retrievable subsurface safety valve. The tool comprises a substantially cylindrical guiding portion having a first radius and a longitudinal axis. Further the tool comprises a tip portion at a first end of the tool for establishing initial contact with the broken flapper, wherein the tip portion is radially displaced outwards relatively to the longitudinal axis by a second radius. Moreover, the tool comprises a rearrangement portion for rearranging the broken flapper, wherein the rearrangement portion is arranged between the tip portion and the guiding portion and provides a contact surface for moving the broken flapper. Furthermore, the tool comprises a fastening means at a second end of the tool for fastening the tool to a support means that allows the tool to be inserted into the borehole.

The utility model belongs to the technical field of check valves, and discloses a horizontal baffle check valve which comprises a baffle check valve body, a filter assembly is arranged in an inner cavity of the baffle check valve body, a pop-up structure is arranged in the filter assembly, the filter assembly comprises a connecting ring, and the connecting ring is connected with the baffle check valve body. The outer side of the connecting ring is movably connected with the inner wall of the baffle check valve body in a sleeved mode. The connecting ring and the filter screen plate are arranged, the connecting ring is buckled out of the inner cavity of the valve body through the clamping groove, and when the filter screen plate is moved out of the inner cavity of the valve body, the push rod and the movable block are driven to move upwards through the elastic force of the second spring, so that the filter screen plate is popped out of the inner cavity of the groove, and an operator can conveniently take the filter screen plate out of the groove; and meanwhile, the cleaned filter screen plate is pressed into the groove, and the filter screen plate is driven to reset by resetting the connecting ring, so that the filter screen plate is convenient to disassemble and assemble by an operator, and the cleaning efficiency is improved.

A check valve assembly for a supply tube. The check valve assembly includes a hinge pin, a first flapper, and a second flapper. The first flapper is pivotally coupled to the second flapper by the hinge pin. The check valve assembly also includes a stopper positioned between the first flapper and the second flapper. The stopper is configured to limit movement of the first flapper and the second flapper. The check valve assembly also includes a plate assembly positioned downstream of the stopper. The plate assembly is configured to disrupt a vortex formed in a fluid flow through the first flapper and the second flapper.

The invention discloses a low-static-consumption single-nozzle baffle type pressure servo valve which comprises a sleeve, a coil assembly, a magnet assembly, an armature assembly, a nozzle baffle stage and a slide valve stage. The baffle can be tightly attached to the oil inlet nozzle by adjusting the position of the magnetic gap screw, oil entering from the oil inlet P reaches the front end of the oil inlet nozzle through the main oil filter and is cut off by the baffle, and at the moment, when the servo valve is in a zero-position non-working state, the pilot level almost has no leakage; when a product is in a working state, the number of oil inlet nozzles is reduced by half, and the pilot-stage internal leakage rate is greatly reduced. The anti-pollution capacity of the slide valve stage is obviously improved, and the oil return pressure stability is good.

The utility model discloses a kind of shaft seal pneumatic flashboard valve convenient to install, it is related to pneumatic flashboard valve technical field, including fixed assembly, connecting assembly and sealing assembly, the fixed assembly includes flashboard valve main body and fixed block, the fixed block is fixedly connected in the inside of flashboard valve main body, the connecting assembly is set in the outside of fixed assembly, the connecting assembly includes fixed plate and rotating groove, the rotating groove is set in the inside of fixed plate, the sealing assembly is set in the inside of fixed assembly, the sealing assembly includes screw thread disc, the screw thread disc is screw mounted in the inside of flashboard valve main body. The utility model is by being set in the fixed plate of flashboard valve main body connecting place, form rotating groove between two fixed plates, set flange plate in rotating groove, make flange plate rotate in rotating groove, when flange hole is not equal when connecting pneumatic flashboard valve, rotate flange plate to make it equal, it is convenient to connect flange hole.

A vent assembly for routing airflow between an interior of a building and an exterior environment is described. The vent assembly includes a vent member configured to extend through a wall or roof penetration and a mounting member configured to secure the vent member from an interior side of the building. The vent assembly may be installed entirely from inside the building and may include an integrated temporary or permanent vent cap. In certain embodiments, the vent member is adjustable in length to accommodate different wall or roof thicknesses and exterior finish materials. The vent assembly may be configured as a single-port or multi-port assembly, wherein multiple ducts are routed through a single exterior penetration while maintaining separation of airflow. The vent assembly may further include modular components, extension members, telescoping members, flappers, and protective mesh. The vent assembly is suitable for wall-mounted and roof-mounted applications and is compatible with exhaust and intake airflow.

An amusement machine includes a button deck (10). The button deck (10) includes a transparent support plate (13) and a display (12) together serving as a touchscreen, and a pushbutton switch (15). The pushbutton switch (15) includes an operable portion (20) attached to one surface of the transparent support plate (13), and a detector (30) attached to another surface of the transparent support plate (13) and facing the operable portion (20). The operable portion (20) includes a button (21) and a reflective flapper (26) movable in response to movement of the button (21). The detector (30) includes a reflective sensor (34) that detects the pressed state of the button (21) through the transparent support plate (13). The reflective sensor (34) emits light toward the reflective flapper (26) and receives light reflected by the reflective flapper (26).

A façade system having moving flappers mounted using a support clip suspension system. A rung is generally triangular in cross-section having a front latitudinal slot, through which a support clip is inserted. The support clip has a pair of parallel arms connecting to each other by a transverse connecting member to be generally U-shaped. The support clip seats within the slot between the outer edge of the cap and the lower lip of the front edge, thus the flapper can be connected to the rung and held therein with the support clips secured within the slot. In the manner the flappers are hung and sway in response to wind to aid in the aesthetics of the façade.

A vent assembly, including a backplate having plurality of concentric cylinders arranged in an order of decreasing diameter, such that the concentric cylinders are separated by score lines and at least one of the cylinders is recessed from the backplate, and a vent flapper. The assembly may include a tube configured to attach to one of the cylinders and one or more tube stoppers to prevent the tube from being over inserted. The assembly may include a face plate, a tooth formed on the backplate, and a tooth receiver is formed on the face plate. The score lines may be dual-sided score lines. The assembly may include the vent flapper having one or more air intake openings formed within the vent flapper, such that the air intake openings allow air to flow both in and out.

The present invention provides a sheet transport device and an image forming apparatus that can suppress damage to the sheet caused by the flapper. [Solution] A sheet conveying device comprising: a first conveying path through which sheets are conveyed; a reversing conveying path that reverses the conveying direction of sheets conveyed from the first conveying path; a second conveying path through which sheets conveyed from the reversing conveying path are conveyed; a reversal switching unit that switches between a first position for guiding sheets from the first conveying path to the reversing conveying path and a second position for guiding sheets from the reversing conveying path to the second conveying path; and a drive unit that switches the reversal switching unit between the first and second positions, wherein the second position is a position in which the reversal switching unit does not block the second conveying path but blocks the first conveying path, and the first position is a position in which the reversal switching unit does not block the first and second conveying paths and allows sheets to be conveyed from the reversing conveying path to the second conveying path.

This utility model discloses an automatic sewage discharge device for aquaculture ponds, including a sewage discharge riser. The riser is connected to the outlet of a sewage pipe via a tee. A flapper-type check valve is installed at the outlet of the tee, with a flapper inside the valve body. A float is installed inside the riser, with a sealed top and several small holes at its bottom. The top of the float is fixedly connected to the top of the riser via a first rope, and the bottom of the float is fixedly connected to the free end of the flapper via a second rope. An air pipe for inflating and venting the float is connected to the top of the float, and the other end of the air pipe is connected to a solenoid valve for controlling its opening and closing. Under the upward buoyancy of the float, the second rope opens the flapper, connecting the sewage pipe to an external drainage ditch. The advantages are that it combines automatic and manual functions, avoids the risk of the aquaculture pond being emptied, and has a simple overall structure, facilitating daily maintenance and repair.

A flapper assembly for a flush valve as well as method of assembly are provided. The flapper assembly includes a frame and multiple buoyancy assemblies attachable to the frame so as to adjust the buoyancy of the flapper assembly. The flapper assembly kit may have adjustable legs attachable to the frame. The flapper assembly kit may have multiple seal members for use in sealing with different sized / shaped valve seats of different sized flush valves.

A downhole tool includes a mandrel and a tube positioned within the mandrel. The tube defines an inner shoulder proximate to a lower end thereof. The downhole tool also includes a retainer positioned within the mandrel and proximate to an upper end of the tube. A first impediment is configured to move axially between a maximum lower position and a maximum upper position. The first impediment is in the maximum lower position when the first impediment is in contact with the inner shoulder. The first impediment is in the maximum upper position when the first impediment is in contact with the retainer. The retainer is shaped such that a center of the first impediment is offset from a central longitudinal axis of the retainer when the first impediment is in the maximum upper position.

The invention relates to the field of fluid control, in particular to a high-tolerance metal gate valve which comprises a valve box, a first valve port and a second valve port which are coaxial are formed in the valve box, a guide rod is arranged in the valve box, a sliding seat is arranged on the guide rod, the two sides of the sliding seat are connected with a first valve plate and a second valve plate through elastic pieces respectively, and the first valve plate is provided with a metal sealing ring. The second valve plate is provided with a metal abutting ring, an extrusion plate is arranged between the first valve plate and the second valve plate, a deflection mechanism is arranged between the extrusion plate and the valve plates, and the extrusion plate is connected with a driving mechanism so that the gate valve can be in a synchronous moving and extrusion sealing state. An over-dead-point self-locking structure, a limiting structure and the like are also arranged; the metal sealing ring and the like are specially designed, and the elastic piece is an arc-shaped elastic plate and the like. The gate valve achieves the technical effects that stable and reliable extrusion sealing is achieved, it is guaranteed that the gate valve works normally in different states, and the tolerance and the sealing performance of the gate valve are improved.

The invention provides a combustion device capable of appropriately improving ignition performance and a hot water device including the combustion device. The combustion device comprises a fan; the premixing device can be driven by the fan to generate mixed gas of air and fuel gas; and an ignition device capable of igniting the mixed gas in the combustion chamber, and the premixing device is provided with a baffle plate capable of opening / closing a part of the gas flow path and having a greater opening degree at a higher speed than when the drive speed of the fan is at a lower speed. The ignition operation of the mixed gas by the ignition device is set in principle as a standard ignition operation performed in a first drive speed region of the fan in which the flapper is in an open state, and when the mixed gas is not ignited by the standard ignition operation, the ignition operation is performed in a second drive speed region of the fan in which the flapper is in an open state. Exemplary non-standard ignition operation is performed in a second drive speed region of the fan in which the flapper is in a closed state.

A circulation sub includes a cylindrical body defining an internal flowpath extending longitudinally therethrough and being couplable within a drillstring, a projectile seat piston included within the cylindrical body and longitudinally translatable within the circulation sub, one or more bypass ports defined in the cylindrical body to facilitate fluid communication between the internal flowpath and an external environment of the circulation, wherein the projectile seat piston is longitudinally translatable to selectively occlude or expose the one or more bypass ports, and a flapper check valve pivotably mounted within the cylindrical body and operable to seal the internal flowpath at a longitudinal location between the one or more bypass ports and an uphole end of the cylindrical body in response to a backflow into the circulation sub.

This invention relates to the field of bulk material handling equipment, and particularly to a bucket wheel mechanism that facilitates easy cleaning and unloading. It includes a wheel body and multiple buckets circumferentially arranged on the wheel body. Each bucket has multiple circumferentially arranged teeth at its front open end. Each bucket includes an upper bucket body, an upper flapper plate, scrapers, a lower flapper plate, and a tilting drive component. The lower flapper plate is located at the bottom of the upper bucket body and is hinged to the rear end of the upper bucket body via a hinge structure. The top of the upper bucket body has an opening, and the upper flapper plate is hinged to this opening. Scrapers are located on both sides of the upper flapper plate, and these scrapers are in contact with the inner walls of the upper bucket body. The tilting drive component is hinged to the outside of the upper bucket body, and its output end is hinged to the upper flapper plate. The tilting drive component drives the upper flapper plate to open or close. When the upper flapper plate tilts, the scrapers on both sides scrape away any sticky material accumulated on the inner surfaces of the upper bucket body. This invention achieves "instant cleaning of accumulated material and rapid unloading," while reducing the number of idle cycles of the bucket wheel mechanism and lowering equipment energy consumption.

A replaceable seat is provided for a convertible check valve. The convertible check valve includes a first valve body section having a first passageway and a first flange, and a second valve body section having a second passageway and a second flange. The second flange is configured for connection to the first flange. The check valve also includes a flapper that moves between a closed state and an opened state. The flapper prevents flow between the first passageway and the second passageway when the flapper is in the closed state. The check valve also includes a gasket interposed between the first flange and the second flange. The gasket includes an opening to permit fluid communication between the first passageway and the second passageway and a valve seat with an integrated O-ring that is configured to contact the flapper when the flapper is in the closed state.

The invention discloses a novel transfer tower funnel turning plate, belongs to the technical field of belt conveyor transfer tower equipment, and is used for effectively solving the use problems that a lining plate is difficult to replace, a turning plate shaft is easy to age and abrade, the maintenance process relates to special operations such as limited space operation and the like, and long-time shutdown is needed for maintenance of four traditional transfer tower turning plate devices. According to the technical scheme, the novel transfer tower funnel turning plate device mainly comprises a forked funnel, a sliding way and a turning plate. The forked funnel comprises a feeding port and two discharging ports. Two turning plate holes used for installing turning plates are designed in the forked funnel wall on one side of a feed port of the forked funnel, and two lateral sliding ways and a bottom sliding way are installed in the turning plate holes respectively. The three slideways act together to guarantee that the turning plate moves along a set route, opening and closing of the two discharging ports of the forked funnel are achieved, and the process replacement requirement is met. Multiple sets of wear-resistant lining plates are designed and installed on the front face of the turning plate and used for prolonging the service life of the turning plate. Leakage-proof baffles are designed on the left side and the right side of the turning plate, and the effect of preventing materials from scattering in the operation process is achieved. And a support lug connected with the electric-hydraulic push rod is designed and mounted at one end of the turning plate and is used for realizing the action of the turning plate in the horizontal direction. The transfer tower funnel turning plate device has the advantages of being simple in structure, reasonable in design and convenient to mount, dismount and maintain, and is suitable for a large-scale high-speed running belt conveyor system.

The utility model discloses sand mixing equipment for casting processing, which belongs to the technical field of casting processing and comprises a tank body, a feeding pipe is arranged on one side of the upper end of the tank body, a discharging pipe is arranged on the lower side of one end of the tank body, an electric push rod is arranged at the upper end of the discharging pipe, a folded plate is arranged at the output end of the electric push rod, and a workbench is arranged on the lower side of the tank body. Supporting legs are fixed to the two sides of the lower end of the workbench, the tank body and the workbench are connected through a discharging assembly, and a stirring assembly is arranged in the tank body. By arranging the stirring assembly, sand in the tank body is fed into the tank body through the feeding pipe when being mixed, the first motor is started to drive the main shaft to rotate, the main shaft rotates to drive the first gear to rotate clockwise, and the first gear drives the auxiliary shaft to rotate anticlockwise through the second gear; the main shaft and the auxiliary shaft rotate oppositely to drive the multiple stirring rods to mix and stir the sand in the tank body, the interior of the tank body can be stirred in multiple directions by arranging the stirring assembly, and the sand mixing quality is improved.

The burner comprises a nozzle, an air flap and an injection pipe, the burner further comprises a valve body mounting seat and a connecting part, the connecting part is arranged on the outer side wall of a pipe opening of the injection pipe and extends in the direction relatively far away from the injection pipe, the valve body mounting seat is arranged on the side surface of the nozzle, and the valve body mounting seat is arranged on the outer side wall of the nozzle and extends in the direction relatively far away from the injection pipe. The end, facing the injection pipe, of the nozzle is located on the outer side of a pipe opening of the injection pipe. The air flap is directly connected with the nozzle, and the distance between the air flap and a pipe opening of the injection pipe is larger than 0. According to the burner, the valve body mounting seat and the connecting part are arranged in the burner, so that the nozzle can be butted without extending into the injection pipe, the coaxiality of the nozzle and the injection pipe is ensured, the temperature of the nozzle is reduced, and the injection capacity of the burner is improved.

A combustion device includes a fan; a premixing device capable of generating an air-fuel mixture by driving the fan; and an ignition device capable of ignition operation for the air-fuel mixture in a combustion chamber. The premixing device includes a flapper capable of opening and closing a part of a gas flow path and has a larger opening degree when the drive speed of the fan is high speed than low speed. The ignition operation for the air-fuel mixture by the ignition device is a standard ignition operation in principle, executed in a first drive speed range of the fan in which the flapper is in an open state, and exceptionally a non-standard ignition operation, executed in a second drive speed range of the fan in which the flapper is in a closed state in the case where the air-fuel mixture is not ignited by the standard ignition operation.

The application provides a rotary baffle jet electro-hydraulic servo pressure regulating valve, which comprises a shell, a rubber sealing ring, a rubber sealing plug, a rotation limiter, a rotating piston and an upper end cover. The shell is connected with the upper end cover through bolt holes and upper end cover bolt holes, the annular rubber sealing ring is arranged between the shell and the upper end cover, the bottom cylindrical table of the rotation limiter is connected with the cylindrical groove of the shell, the rotating piston cylindrical groove of the rotation limiter is connected with the upper and lower cylindrical bodies of the rotating piston, the upper end surface of the rotation limiter is in contact with the upper end cover end surface of the upper end cover, the first and second bosses of the rotation limiter are respectively connected with the first and second half annular grooves of the upper end cover, and the cylindrical surface of the rotation limiter is in contact with the upper end cover central groove of the upper end cover. The oil liquid return system is integrated into the valve body and matched with the piston buffer structure, so that the oil liquid is recycled and the stability of the valve is improved.

The utility model discloses a vacuum baffle valve that high sealing performance, including vacuum baffle valve, install the connecting pipe on the vacuum baffle valve, the inside rotatory mounting of connecting pipe has the movable ring, is connected with the broken structure on the movable ring, is connected with the fixed screw on the broken structure location structure, and the fixed screw is connected with the reinforcing structure, and the broken structure includes a plurality of connecting strips, and the connecting strip detachable mounting is on the inner wall of movable ring, and the inside movable mounting of connecting strip has a plurality of T type board, and one side of T type board is installed broken blade, the utility model discloses, after the connecting pipe is taken off from the pipeline of connection, can take out the connecting strip from the movable ring through the rotation of screwing out fixed screw, T type board will separate from the one side of spacing baffle at this moment, just need to push T type board to can take off broken blade, thereby the convenient replacement operation to the abrasion or broken broken blade is carried out, and then need not integral replacement, reduced maintenance cost.

1. The name of the design product: double cylinder flapper valve. 2. The use of the design product: the design product is installed on the pipeline of conveying medium, used for opening or closing the flow path. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.