31results about How to "Increase frictional pressure" patented technology

A method and system of drilling straight directional and multilateral wells utilizing hydraulic frictional controlled drilling, by providing concentric casing strings to define a plurality of annuli therebetween; injecting fluid down some of the annuli; returning the fluid up at least one annulus so that the return flow creates adequate hydraulic friction within the return annulus to control the return flow within the well. The hydraulic friction should be minimized on the injection side to require less hydraulic horsepower and be maximized on the return side to create the desired subsurface friction to control the well.

An elastomeric O-ring compressed between a laminated plastic grip panel and a pistol grip frame provides a vibration dampening structure for a pistol. The elastomeric O-rings are placed around fastener bushings on the grip frame. The grip panels are secured to the grip frame by inserting threaded fasteners through fastener holes in the grip panel into the fastener bushings. Each O-ring is received by the grip panel in a corresponding annular recess that has a depth that is less than the diameter of the O-ring. When the threaded fasteners are tightened, the elastomeric O-rings are compressed between the grip frame and the grip panel. The compressed O-rings prevent loosening of the threaded fasteners by improving the vibration dampening characteristics of the pistol and by increasing frictional pressure between the grip panel and the head of each threaded fastener.

The invention relates to the technical field related to new energy, and discloses a new energy power generation equipment fitting transportation device. The new energy power generation equipment fitting transportation device comprises a box body, a box cover, fourteen vertical separation plates, twenty-six airbag layers, multiple airbag projections, a transverse mounting groove, a transverse multi-way pipe, an air guide joint, an embedding groove, a switch valve, twenty-six vertical guide grooves, twenty-six vertical air guide pipes, a mounting plate, a guide groove, two guide chutes, twenty-six mounting slide plates, fifty-two movable rollers, twenty-six lateral extension rubber layers, thirteen transverse extension rubber layers, thirteen sets of arc springs, a polish rod, an inner bearing, a starlike handle, two limiting blocks and thirteen thread set mechanisms; the box cover is positioned above the box body; and the fourteen vertical separation plates are distributed between the front and back side inner walls of the box body at equal intervals. The new energy power generation equipment fitting transportation device realizes multiple times of counteraction and buffering of stress transferred by photovoltaic panels, effectively protects the bottoms of the photovoltaic panels, and improves the applicability.

A clip engages a pair of legs of a vibration attenuator to reduce the local separation of the legs, thereby increasing the force of friction pads, affixed to the legs, against a brake disk to compensate for reduced thickness of the friction pads due to wear. The clip has a first end region, which can preferably be snappably engaged with one of the legs so as to pivot thereabout. The clip has a second end region with a protrusion which can be engaged with the other leg so as to restrain it at the reduced separation. Preferably, a second protrusion is provided to allow restraining the other leg at an even smaller local separation from the leg that is rotatably engaged by the first end region. A tab preferably extends beyond the first protrusion to aid in engaging and disengaging the second end region from the other leg.

The invention relates to the technical field of clutches, in particular to a high wear-resistant iron based powder metallurgy internal spline, a clutch cover and a clutch. Compared with the prior art,the high wear-resistant iron based powder metallurgy internal spline comprises the following components by weight percentage: 0.35-2.25% of graphite, 0.8-2.8% of copper, 0.35-2.25% of nickel, 0.8-3.25% of manganese, 1.3-4.2% of chromium, 0.1-1.2% of niobium, 0.1-1.2% of titanium, 0.1-0.7% of aluminum, and the balance iron, and is prepared by mixing, pressing, sintering and other processes. The obtained internal spline and molten aluminum alloy are subjected to die-casting integrated forming so as to obtain the clutch cover with the internal spline, and the clutch can be obtained through assembly, the obtained internal spline, clutch cover and clutch have good wear resistance and long service life, also the production process is simple, and at the same time the cost is reduced.

The invention relates to the technical field of teaching equipment, and discloses a simulation device for elasticity teaching in junior middle school physics. The device includes a vertical plate, thebottom of the upright plate is fixedly connected with a transverse bottom plate, the left and right sides of the vertical plate are fixedly connected with side plates, Both sides of the front face ofthe vertical plate are provided with vertical areas, the top of the two vertical areas are fixedly connected with rectangular fixture rings by bolts, the inner side walls of the two rectangular fixture rings are bonded with fixture air bags, the two fixture air bags are bonded with friction plates on the side far away from the rectangular fixture rings, and the air guide ports of the two fixtureair bags are fixedly connected with air ducts. The simulation device for elasticity teaching in junior middle school physics, thus can be aimed at different length of spring dynamometer connection force measurement, so that teachers or students can test different spring dynamometer for the same tension at the same time, to obtain different spring coefficient of spring dynamometer, reduce the errorof the result.

The invention relates to the technical field of water faucet auxiliary maintenance, and discloses a device for removing scale on the inner side wall of a direct drinking water faucet port. The devicecomprises a handle. The left end face of the handle is fixedly connected with a positioning round block through bolts. The lower surface of the positioning round block is fixedly connected with a micro motor through bolts. An output shaft of the micro motor penetrates the lower surface of the positioning round block and is fixedly connected with a round connection box. A supporting ventilation thin pipe is welded to the position of a ventilation opening in the middle position of the top of the round connection box. The side face of the tail end of the supporting ventilation thin pipe is fixedly connected with a semispherical expansion opening plate through a connection rod. An emulsion sleeve is connected to the semispherical expansion opening plate and the supporting ventilation thin pipein a sleeving manner. The bottom of the emulsion sleeve is connected with the top surface of the round connection box in a glued manner. According to the device for removing the scale on the inner side wall of the direct drinking water faucet port, the inner side wall of the faucet port is extruded through a scale removal brush, the friction pressure between the scale removal brush and the innerside wall of the faucet is increased, and therefore the aim of conducting friction scrubbing on the inner side wall of the faucet port is achieved.

The invention discloses a road and bridge crack repairing method, and belongs to the field of road bridges, the road bridge crack repairing method specifically comprises the following steps: S1, flexible rails are symmetrically installed on two sides of a crack; s2, a dust suction device is used for adsorbing sundries in the crack, and then a high-pressure flushing device is used for flushing the crack on the base plane of the bridge; s3, a corrosion agent is injected into the dried crack, and secondary flushing is carried out; s4, a counterbore is drilled, and a mounting groove is formed; s5, connecting pieces are mounted in the mounting groove, and connecting bolts are mounted in the counterbore; s6, a crack repairing material is injected into the crack and dried; and S7, the flexible rails are dismantled, the foundation trench is ground out, a surface protection layer is filled, and after tamping, the surface protection layer is ground to be flush with the bridge base plane. The method is easy to operate, rapid in crack repairing and firm in connection, effectively avoids the possibility of secondary cracking of the crack, has market prospects and is suitable for popularization.

The invention discloses a rewinding machine with a surface drive function, and belongs to the technical field of printing machinery. According to the rewinding machine, a paper rewinding tension detection device is arranged on a paper output channel behind a traction unit; the paper rewinding tension detection device comprises a second swinging rod; one end of the second swinging rod is connected with a floating roll, and a second sensor for detecting a rotating position of the second swinging rod is arranged at the other end of the second swinging rod; a rewinding roll driven through a second variable-frequency motor behind the paper rewinding tension detection device is arranged, and the second variable-frequency motor is connected with the second sensor through a controller; an inflatable shaft for installing a paper reel in a penetrating manner is arranged above the rewinding roll, and in transmission connection with a lifting cylinder controlled by a proportional electromagnetic valve; and the proportional electromagnetic valve is connected with a third sensor for detecting a lifting position of the inflatable shaft through the controller. According to the rewinding machine disclosed by the invention, the problems that an original bulkiness of a printing stock cannot be recovered due to a too high tension during rewinding of an existing rewinding machine, and material reels are tight outside and loose inside due to dead weights can be solved.

The invention relates to the technical field of pans, and discloses a maintenance device for a pan bottom. The device comprises a supporting device body, a supporting frame is fixedly connected to thetop of the supporting device body through a bolt, and electric lifting rods are fixedly connected to the two sides of the top of the inner side of the supporting frame through fixing seats; a transverse displacement mechanism is fixedly connected with the tail ends of the two electric lifting rods through bolts and connected with a pan body clamping mechanism, and a round through groove is formedin the top middle of the supporting device body. Through the mutual cooperation of the supporting device body, the electric lifting rods, the transverse displacement mechanism, the pan body clampingmechanism, annular sealing cylinders, limit brushing mechanisms arranged on the pan body side surfaces, flushing heads, a servo motor, a protection flow dividing cover, a cleaning mechanism arranged at the bottom of the pan body and water draining filtering covers, the labor intensity of dust removing and maintenance for the pan bottom is effectively reduced, and after the pan is flushed by usingflushing liquid, the flushing liquid flows to the inner side of the supporting device body and is drained through the water draining filtering covers at a water draining outlet.

The invention relates to the technical field of purification of activated carbon and discloses a disordered purification device for large-granule activated carbon. The disordered purification device comprises a barrel body, a bearing top plate, two electric lifting rods, a seal cover, a pressure push mechanism, an elastic reset mechanism, a mounting plate, a middle hinged seat, an upper friction mechanism, a water inlet pipe, an inner frame, a seal ring, a hollow fixing ring, a soft rubber layer, a low-speed motor, a rotary poking mechanism, a water draining pipe, a control panel and water filtering holes, wherein the bearing top plate is fixedly mounted right above the barrel body through a fixing rack; the two electric lifting rods are symmetrically mounted on the lower surface of the load-bearing top plate through bolts; and the seal cover is mounted between the tail ends of the two electric lifting rods through bolts. The disordered purification device allows better rotary frictionbetween activated carbon and a friction brushing cloth, so as to be more conducive to the separation of impurities in the pore structure of the activated carbon, achieve the purpose of flexible purification of the activated carbon and reduce damage of the disordered purification device to the surface of the activated carbon.

The invention relates to the technical field of medicine pot auxiliary equipment, and discloses auxiliary taking handle equipment for a medicine pot with a straight handle. The equipment comprises a cylinder body, a flexible glue cylinder matched with the shape of the inner side wall of the cylinder body is arranged on the inner side of the cylinder body, and the top side surface of the flexible glue cylinder is mutually and fixedly connected with the top of the inner side of the cylinder body, the bottom surface of the flexible glue cylinder and the bottom of the inner side of the cylinder body through bonding layers; a thermal insulation layer piece is connected with the inner side of the flexible glue cylinder, an opening of the top of the cylinder body is in a taper shape sinking inward, a taper protective sleeve adheres to the surface of the top of the cylinder body, and arc elastic pressing pieces are fixedly connected to the tops of the left and right inner side walls of the cylinder body. According to the auxiliary taking handle equipment for the medicine pot with the straight handle, by arranging the flexible glue cylinder, the arc elastic pressing pieces, a hinged movablepiece and a second pressing piece, the length of the heat conduction is extended, the area of heat conduction is reduced, and therefore the purpose of achieving thermal insulation and scald prevention on the cylinder body is achieved.

The invention relates to the technical field of home articles of daily use, and discloses square ground mat rotary washing equipment for homes. The square ground mat rotary washing equipment for homescomprises a barrel, a supporting frame, electric lifting rods and a sealing barrel cover. The supporting frame is fixedly connected between the left side and the right side of the barrel through a fixing block, the two sides of the top of the inner side of the supporting frame are fixedly connected with the electric lifting rods, the sealing barrel cover matched with the size and the shape of thetop of the barrel is fixedly connected between the tail ends of the two electric lifting rods, the upper surface of the sealing barrel cover is fixedly connected with a vertical rotary motor, and anoutput shaft of the vertical rotary motor penetrates through the upper surface of the sealing barrel cover and is connected with a bearing connecting auxiliary mechanism. Through the mutual cooperation of the barrel, the bearing connecting auxiliary mechanism, a washing sprayer, a rotary positioning adjusting mechanism and a take-up mechanism, the purpose of removing soil impurities adhering to asquare ground mat is achieved, and the labor intensity of washing the square ground mat traditionally is greatly reduced.

The invention provides an intelligent monitoring and alarming integrated box which is composed of a box body (1) and a box door (2), and a cover plate (3) and a photovoltaic stroboscopic laser lamp (6) are installed on the box door (2). An alarm device is arranged at the outer bottom of the box body (1); a groove-shaped bracket (35) is arranged in the box body (1); heat dissipation holes (25) areformed in the upper part and the lower part of the front surface of the box body (1); an anti-drop hoop (43) is arranged at the back of the box body (1); and a folder (20) is arranged on the inner side of the box door (1). All equipment in the box body is convenient to install, independent in construction operation, easy to integrally take out and convenient for engineering maintenance; the box body has a double-layer box heat insulation structure; sand, dust and mosquito erosion is effectively filtered; a driver can pay attention to driving safety; the hoop effectively prevents the rod body from slipping and being damaged; an alarm function is realized; the cover plate (3) facilitates customized content printing and plays a role in reinforcing the box door (2).

The invention discloses an environment-friendly filter material for filtering. The environment-friendly filter material comprises a framework, a through groove is formed in the front surface of the frame, sliding grooves are formed in the inner walls of the left side face and the right side face of the frame, a fixing groove is formed in the back face of the inner side of the frame, movable grooves are formed in the left side face and the right side face of the through groove and the fixing groove, movable blocks are movably connected to the inner sides of the two movable grooves, a movable pressing plate is fixedly connected between the two movable blocks, rotary joints are fixedly connected to the two sides of the upper surface of the movable pressing plate, through holes are formed in the front side and the rear side of the upper surface of the frame, and an adjusting block is fixedly connected to the upper surface of the frame. According to the invention, the frame, the movable blocks, the movable pressing plate, the adjusting block, an adjusting bolt and the rotary joints are arranged, and are matched with an environment-friendly filter material, the problem that an existing environment-friendly filter material for filtering is not convenient to replace is solved, and the movable pressing plate, an anti-skid layer and the movable blocks are matched with each other, so thatthe problem that the existing environment-friendly filter material for filtering is unstable in fixation is solved.