30results about How to "Reduce vertical pressure" patented technology

The invention provides an internal and external support structure of a building foundation pit and a construction method. The internal and external support structure comprises an anchor rod/cable, a spherical rotary support seat, an upper pressing rod, a lower pressing rod, a support pile and an internal support structure and external support structure connecting rod, wherein the anchor rod/cable is a rock-soil anchor rod/cable with a large inclination angle of 30 degrees to 60 degrees, one end of the anchor rod/cable 1 is anchored in a stable rock-soil body, and the other end of the anchor rod/cable extends into the foundation pit and is connected with the spherical rotary support seat; a top beam and a middle beam are arranged on the support pile, one end of the upper pressing rod is connected with the spherical rotary support seat, and the other end of the upper pressing rod is connected with the top beam; one end of the lower pressing rod is connected with the spherical rotary support seat, and the other end of the lower pressing rod is connected with the middle beam; and the internal and external support connecting rod is connected with an internal support structure. The invention discloses the internal and external support structure of the building foundation pit and the construction method. By adopting the anchor rod/cable structure with the large inclination angle, the horizontal length of the anchor rod/cable and the disturbance range of the anchor rod/cable to a soil layer is reduced, the damage of the anchor rod/cable to surrounding buildings and roads is avoided, and the environment is protected.

The invention discloses a gas impurity removal and hydrolysis composite tank and a blast furnace gas fine desulfurization system. The gas impurity removal and hydrolysis composite tank comprises a reaction tank body, the reaction tank body is provided with a gas inlet and a gas outlet along the radial direction, three net partition plates are arranged in the reaction tank body, the net partition plates are parallel to the center line of the reaction tank, gas flows along the radial direction of the tank body, the interior of the reaction tank body is divided into a gas distribution chamber, an impurity removal chamber, a catalytic hydrolysis chamber and a gas collection chamber by the net partition plates, a gas inlet is formed in the gas distribution chamber side of the reaction tank body, a gas outlet is formed in the gas collection chamber side of the reaction tank body, an impurity removal agent is placed in the impurity removal chamber, an organic catalytic conversion agent is placed in the catalytic hydrolysis chamber, and gas enters the gas distribution chamber from the gas inlet, uniformly flows to the impurity removal chamber and the catalytic hydrolysis chamber, is converged in the gas collection chamber and then is discharged through the outlet, so that the on-way resistance of the gas is small, the pressure loss is small, and harmful impurities in the blast furnace flue gas can be removed, and organic sulfides can be catalytically hydrolyzed.

The invention provides a coaxial bi-directional double quick-acting shaft division pluripotent helicopter speed reducer. The speed reducer is compact, large in speed ratio and torque, small in size, high in efficiency and long in service life, and is rarely maintained. According to the speed reducer, a planet gear shaft is used for replacing a planet gear in a planetary gear train and meshed with two identical sun wheels in an input shaft, an outer gear ring is meshed with the other gear in the planet gear shaft to form a stable rotating body, the outer gear ring is fixed, and a gear at the front end of the planet gear shaft is meshed with the other outer gear ring to output power to form the planet gear shaft train speed reducer. The speed ratio is mainly decided by the diameter of the two outer gear rings, by combining the diameter changes of the sun wheels and the gears on the planet shaft, rotating speed input by 1/3-1 time can be achieved, and revere use is achieved; one gear is additionally arranged at the front end of the planet shaft and meshed with the outer gear rings or the sun wheels to form double-speed output; one gear is additionally arranged at the rear end of the planet shaft and meshed with the outer gear rings or the sun wheels to form division output. Due to the special structure and the high functional property, the speed reducer can be widely applied to the mechanical industry.

The invention discloses an anti-typhoon wood structure system of a dwelling mount wall space considering both sunshade and rainproof function. The anti-typhoon wood structure system of the dwelling mount wall space considering both sunshade and rainproof function comprises a main body building and wrap eave buildings, wherein the wrap eave buildings are arranged on both sides of the main body building; a sheet type column and tie structure is formed by main body building pillars, main body building mount wall pillars and main body building longitudinal beams; main body building cross beams are connected with the sheet type column and tie structure in a mortise mode; main body building purlines are parallel to the main body building cross beams and evenly distributed on short pillars of the sheet type column and tie structure; one ends of auxiliary short pillars of the wrap eave buildings are fixed with the upper ends of the main body building pillars of right angle ends of the main body building, and the other ends of the auxiliary short pillars are connected with one ends of auxiliary purlines; the auxiliary purlines are abutted against the mount wall space of the main body building, the other ends of the auxiliary purlines are connected with the auxiliary short pillars on the other space; the auxiliary short pillars are sequentially connected through the main body building longitudinal beams and connected with the main body building mount wall pillars through the main body building cross beams; the main body building purlines are arranged on the main body building mount wall pillars and the tops of first auxiliary short pillars, second auxiliary short pillars and third auxiliary short pillars; and rafters are vertically arranged on the main body building purlines. The anti-typhoon wood structure system of the dwelling mount wall space considering both sunshade and rainproof function can enhance structural strength and improve integral rigidity.

The invention relates to a building wallboard, in particular to a high-strength building wallboard. The high-strength building wallboard comprises a wallboard body and mounting frames, first mountingplates are oppositely fixed to the side faces of the wallboard, adjusting rods are arranged on the first mounting plates in a penetrating mode and fixed to the first mounting plates, second mounting plates and mounting seats are oppositely fixed to the mounting frames, springs are connected between the first mounting plates and the second mounting plates, the adjusting rods penetrate through the second mounting plates, inclined adjusting faces are arranged at the ends of the adjusting rods, the other ends of the adjusting rods are connected with the mounting seats through the springs, sleevesare fixed to the mounting frames, conical adjusting blocks matched with the inclined adjusting faces are slidably connected into the sleeves, the ends of the conical adjusting blocks are connected with the mounting frames through the springs, and the positions, opposite to the conical adjusting blocks, of the mounting frames are in threaded connection with adjusting bolts. According to the technical scheme, the defects of poor waterproof and noise-insulation effects and low structural strength in the prior art can be effectively overcome.

The invention relates to a steel ball adding device of a ball mill. An inclined steel plate is welded at the bottom of a hollow square iron box which is formed by welding four vertical steel plates; the inclined steel plate passes through a lower opening of the vertical steel plate on one side for discharging balls; the inclined steel plate is welded with two lateral vertical steel plates and a horizontal steel plate to form a ball discharge chute; a horizontal shaft is arranged on the side for charging balls; rolling bearings arranged at two ends of a horizontal shaft are arranged at the small ends of lateral plates of fan-shaped gates on two sides; a fan-shaped gate in sliding fit with the outlet of the ball discharge chute is welded with the large ends of the lateral plates of the two fan-shaped gates on two sides; and a balancing weight is arranged at the tail end of a gate handle which is connected with the lateral plates of the fan-shaped gates to form a whole body. The device can be used for adding steel balls with small labor intensity and at high speed, and is high in work efficiency; as the fan-shaped gates only bear the lateral pressure of the steel balls, the lever-type gate handle with the balancing weight and a limiting block can be easily opened or closed, and the operation is safe and reliable; the output speed and quantity of steel balls can be controlled by the opening degree of the fan-shaped gates, and thus the steel balls which are discharged by inclining the chute are prevented from smashing a feeding opening of the ball mill.

The invention provides a range hood, which comprises an exhaust fume collecting hood and a main box, and also comprises a boss which protrudes inwards from the bottom of the main box and is provided with an inclined surface, and the inclined surface is provided with a special-shaped hole; the clamping part corresponds to the special-shaped hole and comprises a stand column at least partially protruding out of the top face of the exhaust fume collecting hood and a radial protrusion arranged on the top of the stand column, and the radial protrusion is clamped to the boss. According to the range hood, the clamping part and the boss which are matched with each other are arranged, and the boss is clamped with the clamping part through the inclined surface, so that on one hand, the sealing performance between the main box and the exhaust fume collecting hood can be ensured, on the other hand, the exhaust fume collecting hood and the main box can be quickly positioned and mounted, and the dismounting and mounting efficiency of the range hood is improved.

A plastic pipe line for infiltrating irrigation is disclosed, and may be made up from the used corrugated wall type plastic pipe through drilling small holes, or the waste used hard plastic sheets through adhering three sheets together and drilling small holes to form a triangular infiltrating pipe. It is applied by burying it underground. Its advantages are very low cost, retaining moist root system, and preventing water loss.

The invention discloses a positioning fixture for metal machining. The positioning fixture comprises a supporting base and a workbench, wherein two vertical supporting rods are fixedly connected to the top wall of the workbench, a transverse plate is fixedly connected to the top walls of the two supporting rods, a hydraulic cylinder is installed in the center of the top wall of the transverse plate, and the piston end of the hydraulic cylinder penetrates through the transverse plate to be fixedly connected with a horizontal mounting block; and two rectangular grooves are formed in the top wallof the workbench, limiting blocks are fixedly connected to the front and rear inner walls of each rectangular groove, trapezoidal blocks are slidably connected between the two corresponding limitingblocks, limiting rods are fixedly connected to the opposite end faces of the two corresponding trapezoidal blocks, openings communicating with the rectangular grooves are formed in the bottom wall ofthe workbench, and two mounting grooves are formed in the bottom wall of the mounting block. According to the positioning fixture, coaxial positioning treatment on perforated metal is facilitated, thecoaxial precision of the metal during machining is ensured, and the machining stability is improved.