32results about How to "Guaranteed to be stable and safe" patented technology

The invention relates to the removal of arsenic in drinking water, in particular to a drinking-water arsenic-removing device which comprises a closed hollow cylinder; the upper part of the cylinder is provided with a water outlet, and the lower part of the cylinder is provided with a water inlet; two cylindrical filter elements are vertically arranged inside the cylinder in parallel; the bottom of the filter element on the right is communicated with the water inlet of the cylinder, and the top thereof is provided with a water outlet; the middle and upper part, the middle part and the middle and lower part of the filter element on the right are respectively provided with a detachable hole-born supporting board along radial direction; the three supporting boards divide the cavity in the filter element on the right into four parts which are a filter bed A, a filter bed B, a filter C and a filter D from top to bottom; the bottom of the filter element on the left is provided with a water inlet, and the top of the filter element on the left is communicated with the water outlet of the cylinder; and loaded drinking-water arsenic-removing nano-adsorbing agent is filled in the filter element on the left. The arsenic-removing device has wide application range and can reduce arsenic content in the drinking water to safe standard, thus being suitable for the drinking requirement of scattered towns and citizens.

The invention provides a steel row type wind measurement tower base and a wind measurement tower structure. The steel row type wind measurement tower base comprises a steel row structure formed by intersecting a plurality of hollow steel pipes in a horizontal direction and a vertical direction, the periphery of the steel row structure is encircled by four hollow edge steel pipes, each edge steel pipe is provided with a steel row water inlet and a corresponding water inlet valve, and water can flow through the steel row water inlet through the outside of the water inlet valve and then flows into the hollow steel pipes of a steel row structure. The steel row type wind measurement tower base has the advantages of simple and convenient construction, low cost, favorable carrying effect, high safety and the like.

The invention discloses a closed type cantilever scaffold system and a construction method thereof. The closed type cantilever scaffold system comprises a cantilever steel beam through-wall structure,a cantilever steel beam balcony slab placement structure for containing a balcony slab and manufacturing a cantilever balcony, a closed type cantilever scaffold system for building a scaffold, and anoverhead cantilever formwork protective shed for erecting a protective shed, wherein the cantilever steel beam through-wall structure is used for through-wall fixing construction of a structural steel girder; an anchoring device adopting the cantilever steel beam through-wall structure is convenient to install and flexible to disassemble, the turnover utilization rate can be effectively increased, and an integrated high-intensity embedded U-shaped pull ring and an inclined strut steel tube shaping connecting beam piece are adopted, so that the balcony slab is effectively prevented from beingdamage by crushing, an adjustable vertical rod is adopted for compression joint of a fixing rod and a wall column reinforcing type connecting wall rod, the application range of the scaffold is enlarged, the overhead cantilever formwork dual-layer protective shed is adopted, safety risk in external frame erection is reduced, and safety construction is facilitated.

The invention relates to a high-precision heating furnace steel drawing positioning control method. The control method is a method for controlling the positioning accuracy during steel drawing of a slab of a heating furnace, the heat-state width of the slab is utilized, according to the half heat-state width of the slab, the center line of a discharging roller way serves as an original point, and the motion stroke of a steel drawing machine is calculated; according to the control method, it is ensured that the slab can be simply and effectively drawn to the position of the centre line of a furnace drawing roller way, the positioning precision of the slab on the roller way after steel drawing is improved, and the frequency of steel clamping caused by inaccurate positioning when the slab enters a mill is reduced.

The invention discloses a self-navigation robot which comprises a robot body and following components arranged on the robot body. The components include a laser radar, an infrared distance detecting instrument, an ultrasonoscope, a depth camera, a driving module, a navigator and a controller, wherein the laser radar, the infrared distance detecting instrument, the ultrasonoscope and the depth camera sense barrier information, the driving module drives the robot body to execute motion, the controller is connected to the laser radar, the infrared distance detecting instrument, the ultrasonoscope, the depth camera, the driving module and the navigator, so that the infrared distance detecting instrument can measure the distance between the robot and a barrier when any one of the laser radar, the ultrasonoscope and the depth camera senses the barrier, the controller controls the navigator to plan a path again, and the driving module is controlled by the controller to drive the robot body tomove along the planned path. By means of the self-navigation robot, automatic navigation of the robot is achieved.

The invention discloses environmentally-friendly cleaning-free water-based scaling powder. The powder at least includes a mixture composed of one or more of OP-10-polyethylene glycol octylphenol ether, cetyl trimethyl ammonium bromide, dioctyl sodium sulfosuccinate, fatty acid methyl ester sulfonate, succinic acid, adipic acid, DL-malic acid, dibromo butene diol, citric acid, glutaric acid, dimethylamine hydrochloride, polyethylene glycol 400, propylene glycol monomethyl ether, glycolic acid and absolute ethyl alcohol and the balance pure water. In this way, in order to solve the problems existing in the prior art, the environmentally-friendly cleaning-free water-based scaling powder can substitute traditional solvents and does not need to be heated before usage, and the problem that traditional scaling powder is likely to get explosive and flammable is effectively solved; moreover, surface tension of water and tin is greatly reduced, the quality of processing technologies including electronic installation and connection, tin coating on copper strips, reflow soldering and the like is improved, and the scaling powder has the advantages of being long in preservation time, stable andsafe in property, adaptive to a severe cold environment, environmentally friendly, free of pollution and the like.

The invention discloses an electric generator hydrogen cooler chemical cleaning agent and application. The cleaning agent comprises a cleaning agent A and a cleaning agent B, wherein the cleaning agent A mainly comprises the following components: a non-oxidizing sterilizing agent, a surfactant, a dispersing agent and a deionized water solvent; the cleaning agent B mainly comprises the following components: polyepoxysuccinic acid, sulfamic acid, hydrochloric acid, a nonionic surfactant polyoxyethylene ether, urotropin, an imidazoline type corrosion inhibitor and a deionized water solvent; and the application method comprises the steps of mounting a cleaning system, preparing the cleaning agent A, circularly cleaning the cleaning agent A, replacing waste liquid, preparing the cleaning agentB, circularly cleaning the cleaning agent B as well as treating and replacing the waste liquid. The chemical cleaning agent provided by the invention has excellent cleaning effect, is simple and convenient in application process, has high operability, can realize complete dissolution of hydrogen cooler scale and corrosion products, can guarantee that the unit can eliminate the defect and remove scales, can recover the heat exchange efficiency of the hydrogen cooler and can guarantee safe and stable operation of the electric generator.

The invention belongs to the technical field of communication, and particularly relates to an optical fiber terminal box. The box comprises a box body, a box cover and an adapter. The box cover is fixed to the upper end of the box body through bolts, and the adapter is installed on the side wall of the box body. A fuse box is installed in the box body. A plurality of optical cable arrangement mechanisms are uniformly arranged in the box body in a circumferential direction, and the optical cable arrangement mechanisms are used for arranging optical cables stacked in the box body; a plurality offixed barrier strips are fixedly arranged in a circumferential direction in the box body, and rubber clamping strips are arranged on the inner side walls of the fixed barrier strips; a rubber clamping strip is mounted on the side wall of an L-shaped sliding strip; a U-shaped limiting frame is fixed to the bottom of the box body, an L-shaped sliding strip is arranged in the U-shaped limiting framein a sliding mode, and a threaded hole is formed in the U-shaped limiting frame. A plurality of fixing screw holes are uniformly formed in the horizontal plane of one side of the L-shaped sliding strip and are aligned with the threaded holes in a sliding manner. The redundant optical cables can be conveniently, safely and stably arranged in the box body through the plurality of optical cable arrangement mechanisms.

The invention relates to a mixing barrel locking mechanism, an automatic locking system and an automatic mixing system, the locking mechanism is used for locking the mixing barrel in a mixing frame; the locking mechanism comprises a first driving device, a second driving device, a clamping device, a locking pin shaft and a locking screw rod, the clamping device is used for clamping or releasing the locking pin shaft, the locking screw rod penetrates through and is connected to the locking pin shaft in a threaded mode, and the first driving device is installed on the clamping device and drivesthe locking screw rod to retract or extend from the locking pin shaft; the second driving device drives the clamping device to move and clamps the locking pin shaft into or out of the mixing frame, and when the first driving device drives the locking screw rod to extend and compress the mixing barrel, the clamping device releases the locking pin shaft. According to the mixing barrel locking mechanism, the automatic locking system and the automatic mixing system, matching of the first driving device and the second driving device is utilized, the locking screw rod extends out of the locking pinshaft and compresses the mixing barrel, a constant preload on the mixing barrel is maintained, and the production accident caused by the difference of the manual tightening torque is prevented.

The invention relates to a rubble concrete barrage reinforcing structure and a construction method. The construction method comprises the following steps: 1) construction preparation; (2) chiseling away the surface of the old cofferdam body; (3) a top embedded steel bar construction safety protection platform is installed; (4) embedding steel bars at the top of the block stone concrete; (5) a top hanging type operation platform is installed; (6) a block stone concrete embedded steel bar shaping support is installed; (7) performing bar planting construction on the rubble concrete slope surface; (8) embedding steel bars on the bottom surface of the block stone concrete; (9) ground anchor pull rod fixing side formwork support construction is conducted; (10) carrying out mass concrete riprap construction; 11) mounting an inverted T-shaped rapid drainage system; (12) a new weir body is poured in a segmented mode; and (13) building a fish scale round pool template system. The fish scale round pool formwork system has the beneficial effects that the fish scale round pool formwork system adopts unit type assembly, is rapid to assemble and disassemble, ingenious in structural design and convenient to assemble, improves the installation efficiency, is short in construction period, can be recycled and reused, and can effectively save the cost.

The invention discloses a bean of a dumping automobile, and the dumping automobile is characterized in that the upper side of the automobile beam capable of placing a carriage frame beam is provided with an externally extended wing; the wing is characterized in that the upper outsides of the two automobile beams are respectively provided with the externally extended wing or the insides thereof are respectively provided with an internally extended wing, and the insides and outsides thereof are respectively provided with one externally extended wing and one internally extended wing. Through the configuration, when the carriage is automatically dropped off, the dumping automobile can align at the automobile beam along the guide verticality of the extended wings, and thus the automobile can be prevented from excursion after being worn in use, meanwhile, the wings can improve the integral strength between the automobile beam and the automobile frame beam when the automobile is driven and improve anti-twist performance of main centrifugal effect in the parking area of automobile, and it is to the benefit of driving and safe and steady use of the automobile.

The invention discloses a rotary LED lamp. The rotary LED lamp comprises a base. A power socket is arranged at the upper portion of the lower surface of the base. A power switch, a rotary adjusting knob and a swinging adjusting knob are sequentially and electrically connected to the front end of the upper surface of the base. A telescopic supporting device is arranged at the middle portion of the upper surface of the base. A rotation device is arranged at the top end of the telescopic supporting device. A swinging device is arranged on the upper surface of the rotation device. An LED light source is clamped and connected to the outer wall of the swinging device. A shell is clamped and connected to the side wall of the rotation device. Different from a traditional LED lamp, the rotary LED lamp can rotate and swing, the light emitting dead angle can be reduced, and on the premise that stability and safety of the LED lamp are guaranteed, transmittance of light can be improved through light transmitting holes; and through rotating and swinging manners, the attractiveness and ornamental performance of the LED lamp are improved.

The invention discloses a double-track solder paste printing machine with a lifting platform capable of moving forwards and backwards. The machine comprises a rack. A platform translation module and the lifting platform are arranged in the rack, and the platform translation module drives the lifting platform to move forwards and backwards. The platform translation module comprises a fixing plate,a first motor, a first lead screw, and a first lead screw sliding block. The fixing plate is fixed to the side edge of the rack, the first motor is horizontally fixed to the fixing plate, and the first motor is connected with the first lead screw and drives the first lead screw to rotate. The first lead screw sliding block is arranged on the threaded section of the first lead screw in a sleeving mode and moves forwards and backwards along the threaded section of the first lead screw, the first lead screw sliding block is fixed to the lifting platform, and a linear guide rail is arranged on thefixing plate. The platform translation module is simple and stable in structure, and can be stably drive the lifting platform to move forwards and backwards. Under the condition of double rails, printing can be achieved at any position in a large range without making the platform very long, the printing precision is guaranteed, and the smaller the platform is, the higher the printing precision is.

The invention relates to a plastic bag support. The plastic bag support comprises a base and a base column located on the base. A carrying plate is horizontally arranged at the upper end of the base column. Supporting columns are distributed on the four side faces of the upper end of the carrying plate correspondingly. The upper ends of the supporting columns on the left and right sides are provided with first hooks correspondingly. The upper ends of the supporting columns on the front and rear sides are provided with mouth opening assemblies correspondingly. A square groove is formed in the middle of the carrying plate. The bottom of the groove is provided with a fixing hole. A circular groove plate is hinged to the right side of the groove. A fixed block matched with the fixing hole is arranged at the bottom of the circular groove plate. Two clamps are arranged on the front and rear sides of the groove correspondingly. An opening hook is arranged at the front end of each suction cup.Each opening hook is an L-shaped steel wire. The plastic bag support is simple in structure and convenient to use.