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 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 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 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 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 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 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 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 ofthe 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 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 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.