142results about How to "Increase the compression area" patented technology

The invention discloses a novel anchor head structure used for slope support. The structure comprises a reinforced concrete support and an anchor sealing body. The anchor sealing body comprises a steel cushion plate, an anchor head, a cast-in-place concrete panel and an anchor cable. The reinforced concrete support is arranged on the outer wall of the cast-in-place concrete panel, wherein the reinforced concrete support is internally provided with a load-bearing main rib. The reinforced concrete support is a regular trapezoid platform. The steel cushion plate is arranged on the outer wall of the reinforced concrete support, wherein the anchor cable extends out of the tail end of the steel cushion plate and is fastened by the anchor head. The external of the reinforced concrete support is provided with an outer cover which covers the anchor head, the steel cushion plate, and the reinforced concrete support. The inner wall of the outer cover is provided with a reinforcing steel mesh lining. Using the technical scheme, the invention provides a brand new anchorage device fixing mechanism, and through collocation of the concrete and the reinforcing steel mesh, a more steady protection system is formed.

The invention discloses a universal type rotor core overlaying tool which comprises a platen, a base and a mandrel. The mandrel is sleeved with rotor cores in an overlaid mode. The rotor cores are located between the platen and the base, and core laminations are overlaid through the platen and the base jointly. The universal type rotor core overlaying tool is characterized in that a plurality of pressing columns are connected with the lower portion of the platen and are evenly and annularly distributed at intervals, and the platen drives the pressing columns to enable the iron laminations to be overlaid. According to the universal type rotor core overlaying tool, the pressing column structure is adopted, and radial clearances exist between the pressing columns; compared with a traditional closed overlaying tool, rotor core end fixing keys can be installed when the rotor cores are compressed, the influences of the oil press stroke on rotor core overlaying specifications can be lowered, the security coefficients in the rotor core overlaying process are increased, working procedure tome is shortened, and production efficiency is improved by about 30%.

The invention discloses an environment-friendly polybag heat packaging device and method. The device comprises a workbench. Multiple through holes are formed in the workbench. A cushion plate is embedded in the middle of the workbench. A pressure sensor mounted in the workbench is arranged on the lower portion of the cushion plate in an attached manner. A cover is fixed to the lower end of the workbench and is in an inverted table shape. A suction ventilator is fixed to the middle of the lower end of the cover. Supporting legs are fixed to the two sides of the lower end of the cover correspondingly. A first side plate is fixed to the side end of one supporting leg. A first support and a first motor are fixed to the upper end of the first side plate. The first support is on the front face of the first motor. A driven roller and a driving roller are rotationally connected to the first support. An output shaft of the first motor and the driving roller are fixed. A second side plate is fixed to the side end of the other supporting leg. According to the environment-friendly polybag heat packaging device and method, the situation that contact of a heat seal knife and the cushion plate istoo sudden, consequently, the heat seal knife is damaged, and the pressing area is increased can be avoided. A dual-layer film is attached to the workbench during transverse movement or heat packaging, and the situation that dislocation and movement happen to the dual-layer, and consequently defective goods appear is avoided.

The invention provides an electric connector. The electric connector comprises an insulation body which comprises a number of terminal grooves and a number of limiting grooves, and a number of terminals which are respectively and correspondingly accommodated in a number of terminal grooves. Each terminal comprises a body which is located in the corresponding terminal groove and is fixedly arranged on the insulation body, an elastic arm which extends upward from the body, a first contact part which is formed on the tail end of the elastic arm, a second contact part which extends downward from the body, a curved arm which laterally bends and extends from the body, and a limiting part which is formed on the tail end of the curved arm and is partially accommodated in a limiting groove. Through the top surface of each curved arm, a number of terminals have large areas and can be pushed and pressed by a tool. Each limiting part is accommodated in each limiting groove, which can increase the auxiliary supporting of the terminals on the insulation body, so that the terminals can be easily pushed and pressed by the tool and are stable on the insulation body.

The invention belongs to the technical field of medical caring articles, and particularly relates to a multifunctional turnover device. The multifunctional turnover device solves the technical problem that practicability is poor in the prior art and comprises an inflatable air sac cushion made of flexible materials. The inflatable air sac cushion is connected with an inflating/deflating mechanism. The inflatable air sac cushion is provided with a middle cushion which is arranged in the middle and extends in the axial direction. A left wedge-shaped cushion and a right wedge-shaped cushion are arranged on the two sides of the middle cushion respectively. The middle cushion, the left wedge-shaped cushion and the right wedge-shaped cushion are respectively connected with the inflating/deflating mechanism. The middle cushion is provided with a horizontal middle plane when being in the inflated state, the left wedge-shaped cushion is provided with a left slope of which the height decreases gradually from the left side of the left wedge-shaped cushion to the middle cushion when the left wedge-shaped cushion is in the inflated state, and the right wedge-shaped cushion is provided with a right slope of which the height decreases gradually from the right side of the right wedge-shaped cushion to the middle cushion when the right wedge-shaped cushion is in the inflated state. The multifunctional turnover device has the advantages that practicability is high, pressure can be reduced effectively, and pressure sores can be effectively prevented.

The invention discloses a shaft processing fixture, which comprises a fixture body, a pressing piece and holddown bolts. A holding groove is arranged in the center of the top of the fixture body, the section of the holding groove is arc-shaped, a left side surface and a right side surface, which contact with the holding groove, of the pressing piece are arc-shaped surfaces, and the pressing piece is positioned on the upper side of the holding groove and fixedly presses a workpiece into the holding groove by the aid of the holddown bolts at the front end and the rear end of the pressing piece. By the aid of the shaft processing fixture, the pressing area of the workpiece is increased, clamping stability of the workpiece is improved, and processing precision of the workpiece is guaranteed.

The embodiment of the invention provides a connecting device for connecting a concrete tower barrel and a steel tower barrel, which relates to the technical field of the wind power generation, and solves the problems by utilizing the prior art to connect the concrete tower barrel and the steel tower barrel, the stress mechanism and the failure form on the junction are complicated, the safety is low, the cost is high and the stress of the concrete tower barrel is not uniform. In the connecting device, since a steel base plate and a grouting layer are arranged between the concrete tower barrel and the steel tower barrel, the stress area can be increased, the pressure from the steel tower barrel can be scattered, so that the pressure is more uniformly applied onto the concrete tower barrel, the concrete tower barrel is simple and uniform to stress, the unfavorable situation that the local pressure is large can be avoided, meanwhile no shearing force exists inside the concrete tower barrel, the nonuniform situation of the stress on the concrete tower barrel is avoided, and the safety is improved; and in addition, since the concrete tower barrel is connected with the steel tower barrel only by adopting the steel base plate and the grouting layer, the cost is reduced.

The invention relates to an improved device in aluminium electrolysis industry, in particular to an aluminium electrolysis multifunction crown block rail expansion gap connecting method. The invention comprises a cement beam, a rail, a coattail-shaped trough, a fixed bolt, and an L-shaped rail expansion joint. The connecting method of the rail expansion gas is that two rails with L-shaped cut at the ends are mutually overlapped and sleeved in the coattail-shaped trough which is fixed on the cement beam by the fixed bolt. The invention eliminates the phenomenon of the rail gnawing of crown block caused by rail joint crushing; slight clearance is arranged on the side surfaces of the trough and the rail and the top surface of the rail base, so as to prevent the transverse staggering of the rail and ensure the free expansion when the rail is expanded by heat, solve the problem of the rail expansion gap coattail plate that the rail is not easy to slide or the rail is transversely staggered, and ensure the normal operation of the crown block. The aluminium electrolysis multifunction crown block rail expansion gap connecting method of the invention can be applied to the connection of the rail expansion gaps subject to heavy load, frequent and fatigue works in all industrial fields.

The invention discloses a novel pouring structure for a mould, comprising a main flow channel, branch flow channels, and pouring gate flow channels for connecting the branch flow channels with the main flow channel. The novel pouring structure is characterized in that the pouring gate flow channels are provided with irregular cavities, and recesses or bulges are arranged on the wall surfaces of the cavities. According to the invention, the instantaneous flow acceleration during glue inlet is slowed down, and the partial impact pressure on the pouring gate flow channels during the glue inlet is reduced by increasing the areas of the tube walls of the pouring gate flow channels, thus preventing the mould from deforming.

Disclosed is a heat treatment apparatus which includes a processing vessel having a furnace throat at its bottom and adapted to accommodate process objects therein to perform a heat treatment to the process objects under reduced pressure, the processing vessel having a vessel main body made of quartz, a metallic lid adapted to support thereon a holder for holding a plurality of process objects so as to load and unload the holder into and from the processing vessel and to close and open the furnace throat, and an annular sealing member disposed on the lid to seal a gap between the lid and the furnace throat. A contact-preventing member is disposed between the lid and the furnace throat to prevent contact of the lid with the furnace throat due to squashing of the sealing member that would otherwise occur when an internal pressure of the processing vessel is reduced.

The invention discloses a pressure limiting, safety and pressure relief integrated valve of a pressure cooker. The pressure limiting, safety and pressure relief integrated valve comprises a pressure limiting exhaust pipe, an upper threaded connector, a lower threaded connector, a safety pressure spring, a relief pressure spring, a sealing ring, a pressure limiting valve, an anti-blocking cover and a clamping structure. The pressure limiting exhaust pipe, the upper threaded connector, the lower threaded connector, the safety pressure spring, the relief pressure spring, the sealing ring, the pressure limiting valve, the anti-blocking cover and the clamping structure are combined with one another and are mounted on a lid of the pressure cooker. The working pressure of the pressure cooker is controlled by the exhaust pipe and the pressure limiting valve, the safety exhaust pressure of the pressure cooker is controlled under the matched effect of the exhaust pipe and the safety pressure spring, and the relief pressure of the pressure cooker is controlled under the matched effect of the threaded connectors and the relief pressure spring. Compared with a conventional safety valve of a pressure cooker, the pressure limiting, safety and pressure relief integrated valve has the advantages that a narrow inner cavity can be omitted, and blocking or failure can be prevented. Besides, the basic difference between the pressure limiting, safety and pressure relief integrated valve and a conventional pressure relief structure is that the relief pressure of the pressure cooker can be precisely designed and controlled by the pressure limiting, safety and pressure relief integrated valve, injury to people due to high-temperature food which is ejected out of the pressure cooker during pressure relief can be completely eradicated, a protective cover can be omitted during detection, and safety can be completely guaranteed during operation.

The invention discloses sealing equipment. The sealing equipment comprises a base; a pair of upper rollers and a pair of lower rollers are horizontally arranged on the base; a sealing film is sequentially wound on the rollers to form a tension surface; a sealing structure is further arranged on the base and comprises an upper sealing unit and a lower sealing unit; the upper sealing unit is locatedbetween the upper rollers and the lower rollers; the upper sealing unit comprises a lifting component, a photoelectricity hot-pressing component, a sealing knife, a limiting component and a tension component; the lower sealing unit is located below the lower rollers; and the lower sealing unit comprises a supporting component and sliding component. By adopting the sealing equipment, a disposableplastic cup can be well sealed and packed; and the sealing equipment has the advantages of being convenient in use, high in sealing efficiency and smooth and attractive in product sealing.

A leak-free injector is proposed, the closing force of which is increased by a closing piston. An injector has a nozzle needle and a control valve, the nozzle needle being guided in an injector housing and cooperating with a nozzle needle seat of the injector housing. A high-pressure chamber is present between the control valve and the nozzle needle seat, and the closing piston is provided on the nozzle needle. The closing piston subdivides the high-pressure chamber into a first region and a second region. The two regions of the high-pressure chamber communicate hydraulically via a closing throttle restriction.

The invention discloses an operation method for repairing a floating cover film with water. The operation method comprises the following steps: constructing an operation support platform for repairing a film surface broken hole by adopting a large-area buoyancy pad; enabling an operator to stand on the HDPE floating cover films on the two sides of the broken hole to weld HDPE film strips; slowly lifting the film strip, and lifting the HDPE floating cover film at the broken hole to be in a suspended state; temporarily sealing the film surface broken hole by adopting a strong adhesive tape; and carrying out extrusion welding repair on the film surface broken hole by adopting an HDPE repair block to form a permanent and firm HDPE repair block, so as to complete repair of the film surface broken hole of the HDPE floating cover film with water. The problem that in the operation process of a sewage pool, due to foreign matter entering or the action of external force or the like, holes occur in the film surface of the HDPE floating cover film covering the water surface of the sewage pool is solved.

The invention discloses an intensified reinforced concrete sewer pipe steel mold which comprises an upper cylinder, a lower cylinder, a mounting hole, a first supporting flange, a second supporting flange and a third supporting flange. The lower end of the upper cylinder is provided with the lower cylinder, a steel cylinder is arranged inside the upper cylinder, the mounting hole is formed insidethe steel cylinder, the first supporting flange is arranged outside the upper cylinder, one side of the first supporting flange is provided with the second supporting flange, one side of the second supporting flange is provided with the third supporting flange, and a reinforcing cross bar is arranged on the front side of the upper cylinder. The intensified reinforced concrete sewer pipe steel moldhas the beneficial effect that the steel cylinder with the diameter smaller than the diameter of the reinforced concrete sewer pipe steel mold is additionally arranged, so that the inner wall pressure area of a pipe body is larger, rolled concrete is more uniform and dense, the inner wall is more smooth, the concrete slump is reduced, the dead time can be shortened, the production efficiency is improved, the production quality is also ensured, and the structure is simple.

The invention discloses an oxygen supply device for a fishpond. The oxygen supply device for the fishpond comprises an oxygen supply machine and is characterized in that the oxygen supply machine is connected with an oxygen conveying pipeline, the other end of the oxygen conveying pipeline is closed, the oxygen conveying pipeline is firmly connected with the bottom of the fishpond and whirly arrayed along the bottom of the fishpond, and a plurality of automatic exhaust devices are arranged on the pipeline wall at intervals. The oxygen supply device for the fishpond is simple in structure, one oxygen supply machine can be used independently to supply oxygen to the whole fishpond, and the oxygen supply is uniform.