189results about How to "Prevent down" patented technology

The present invention quickly resolves troubles in an analyzer and performs effective external quality control management. An analyzer (2) and a control device (1) are connected by a network (3). Error data and sample data taken from assay of a quality control substance are transmitted from the control device (1) to the analyzer (2). The analyzer (2) is made to be remotely operable from the control device (1) and when troubles arise repair from the control device (1) is possible. The control device (1) tallies sample data, and provides the tally results to a Web page. The analyzer (2) accesses the Web page using a WWW browser, and can perform external quality control in real time.

The invention discloses a high-precision electric drill capable of conducting positioning. The high-precision electric drill comprises a shell, a drill bit, a motor and a transmission mechanism, wherein the motor and the transmission mechanism are arranged in the shell, the drill bit is connected with the motor in a transmission mode through the transmission mechanism, a sleeve is arranged on the shell, a positioning rod is arranged in the sleeve, the positioning rod and the sleeve are vertically connected in a sliding mode, and a positioning piece can conduct positioning on the surface of a workpiece is arranged at the lower end of the positioning rod. When the high-precision electric drill is used, the positioning rod is installed near a hole to be machined first, switch-on of a motor power supply is subjective to to-be-machine hole coverage achieved by the shallow, on the surface of the workpiece, of the drill bit, the sleeve arranged on the positioning rod in a sleeving mode plays a role in guiding the drill bit, and therefore the accuracy of the drilling position and the perpendicularity of a hole are ensured.

The invention discloses a multi-stage perforation supercharging method. In the technological processes, a supercharging device is connected with the tail of a perforation gun of the upper level, after the perforation gun of the upper level is detonated, the perforation gun transmits detonation waves to the supercharging device, a baffle igniter of the supercharging device is detonated to ignite a supercharging gun powder mechanism, the supercharging gun powder mechanism generates high-pressure gas to push a supercharging piston to move to shear a shear pin of the supercharging device, and to push the piston to extrude a liquid inside an interlayer oil pipe so as to increase the pressure inside the interlayer oil pipe, and the shear pin of the lower-level detonation device is shorn off to detonate a pressure detonation device and a perforation gun of the lower level so as to complete the perforation operation of the lower level. The method can ensure the stability and the controllability of pressure generated due to the combustion of supercharging gun powder in a supercharging cavity, the pressure is then acted on the supercharging piston to ensure that the supercharging piston moves stably, the method can also realize high-precision shearing, can be used in a pressure type multi-stage perforation process, and is suitable for various well conditions.

In an access portion of a LAN, traffic of a received packet is detected, whether or not the traffic exceeds a predetermined threshold is determined, packet information specific to the received packet is acquired when it is determined that the traffic exceeds the threshold, and an occurrence of a loop connection,is determined when the packet information acquired is compared with packet information previously held and a number of conformity thereof amounts to a predetermined number within a predetermined time.

A hydraulic traction system for vehicles is described. The system comprises a hydraulic vane motor mounted at each wheel of the vehicle, and equal number of identical hydraulic vane motors operated as engine driven pumps, and a control system for regulating the flow and direction of hydraulic oil during operation. The hydraulic motor is of a novel design that has a hollow non-drive shaft that accepts incoming hydraulic oil, this allows internal components of the hydraulic motor to be arranged in such a way to improve the efficiency of the hydraulic traction system.

The invention discloses a treatment method for tunnel local collapse. A supporting body with the cross-section shape which is identical to that of a tunnel is produced by a corrugated pipe, the supporting body is pushed into a tunnel collapse affected section and a collapse body, cleaning of the collapse body can be performed, or grouting and solidification are performed on tunnel surrounding rock of the collapse affected section and surrounding rock at the position of the collapse body and then the supporting body is pushed into the collapse body so as to perform cleaning on the collapse body. By means of the treatment method for tunnel local collapse, defects of complicated construction processes, large resource consumption and long construction period in the prior art can be overcome, particularly, defects that totally sealed protection of loose rock and earth mass can not be achieved and personal safety of constructors and device safety are severely threatened in the prior art can be overcome, and construction safety can be effectively improved. According to the treatment method for tunnel local collapse, totally sealed protection is achieved in the tunnel by means of a steel corrugated pipe, the construction period is effectively saved, the tunnel stability and safety can be guaranteed, and processes and steel quantity of I steel supporting, steel grating supporting and the like can be effectively reduced. Besides, the treatment method for tunnel local collapse is suitable for engineering application.

A matrix architecture for KVM extenders connecting a plurality of console terminals and a plurality of computers. The matrix architecture for KVM extenders includes a plurality of first extenders and a plurality of second extenders. The first extenders transform keyboard, mouse analog signals into keyboard, mouse data packets and transform video data packets into video signals for console terminals. The second extenders transform video signals into video data packets and transform keyboard, mouse data packets into keyboard, mouse analog signals. The broadcasters broadcast keyboard, video, mouse data packets, each having a source address and a target address to couple computers to console terminals by broadcasting video data packets from second extenders to first extenders and to couple console terminals to computers by broadcasting keyboard, mouse data packets from first extenders to second extenders.

Reliability is evaluated in constructing a component based-on application and an application for realizing reliability required can be constructed efficiently. A run-time history such as an occurrence frequency of errors, a recovery time required at error occurrence, and a processing capacity at preventive maintenance is added per software component to a run-time history list having been recoded per execution environment such as an application ID, combined component IDs, and executed hardware ID. From these pieces of information, an interval of performing preventive maintenance recommended per software component during system construction is calculated. By comparing reliability per software component and reliability required for the system, advisability is determined and conformance is evaluated. An execution schedule for preventive maintenance and a processing capability are calculated about the entire component-based application created by combining the software components. By calculating the reliability and the processing capability in the entire system to be compared to those required for the entire system, advisability is determined and conformance is evaluated.

The invention discloses a misoperation-preventing interlocking apparatus. A grounding switch is connected with a grounding switch rotary shaft through a grounding switch connecting lever; a main bent plate is arranged in the cabinet body; the main bent plate moves up and down to drive an interlocking rotary shaft to rotate; the main bent plate is provided with a grounding switch rotary shaft baffle; when the main bent plate is positioned at the upper position, the front end part of the grounding switch rotary shaft is blocked by the grounding switch rotary shaft baffle; when the main bent plate is positioned at the lower position, the front end part of the grounding switch rotary shaft is exposed; the interlocking rotary shaft is equipped with an interlocking baffle and an interlocking propping plate which rotate along with the interlocking rotary shaft; and a handcart of a circuit breaker is provided with a handcart interlocking bent plate and a handcart limiting tongue-shaped plate. The misoperation-preventing interlocking apparatus provided by the invention is high in integration function, less in parts, compact in structure, and small in occupied space; the interlocking schemes are well arranged and closely linked, so that the interlocking reliability is high; and in addition, the ''five preventions'' interlocking requirement of the switch equipment is fully satisfied, so that the interlocking apparatus is high in safety in use.

A hydraulic traction system for vehicles is described. The system comprises a hydraulic vane motor mounted at each wheel of the vehicle, and equal number of identical hydraulic vane motors operated as engine driven pumps, and a control system for regulating the flow and direction of hydraulic oil during operation. The hydraulic motor is of a novel design that has a hollow non-drive shaft that accepts incoming hydraulic oil, this allows internal components of the hydraulic motor to be arranged in such a way to improve the efficiency of the hydraulic traction system.

The invention discloses a multistage circular blower for hollow polyphenylene sulfide short fibers. The multistage circular blower comprises an air conditioner, a main valve, a branch valve, a staged air inlet device and a circular blowing device, wherein one end of the air conditioner is connected with the staged air inlet device; the staged air inlet device comprises a first air intake tube, a second air intake tube, a third air intake tube, a fourth air intake tube and a fifth air intake tube in sequence from top to bottom; the circular blowing device is connected with the other end of the staged air inlet device; the main valve and the branch valve are located at the joint of the air conditioner and the staged air inlet device; the main valve is located on a connector of the air conditioner; the branch valve is located on the staged air inlet device, and is fixedly arranged at the joint of the first air intake tube 4, the second air intake tube 5, the third air intake tube 4, the fourth air intake tube and the fifth air intake tube, and the multiple air intake tubes are respectively controlled. Compared with only one fan and the one-stage speed regulation of a common circular blower, the multistage circular blower disclosed by the invention is capable of realizing five-stage speed regulation and stage-by-stage cooling.

A kind of slope-face roof lawn comprises waterproof layer, slope-face roof fixation tray, moisture self-restraint layer, level ground bed matrix layer and lawn plant. The waterproof layer is paved above the slope-face roof, on the waterproof layer pave the slope-face roof fixation tray which is shaped as the inside concave-like step-type, to the under side is the straight surface, to the up side is the flute formed by turn-up arc-surface, on the fixation tray pave the self-restraint layer formed by water-contain material, on the moisture self-restraint layer pave the level ground bed matrix layer, on which grow the lawn plant. The invention has the simple structure and can be achieved easily, the special design of the slope-surface roof fixation tray can effectively induce the leakage of the moisture in the earth matrix and give the matrix a effective support, and can also contain the slope-face roof level ground bed matrix and the moisture distributed evenly, and ensure the growth of the roof lawn.

The invention discloses a method for measuring the cavity depth or the end surface gap of mechanical products and a measuring device thereof. The measuring method comprises the following steps: fixing a product to be measured; determining a contrastive datum plane; building a contrastive reference surface; creating contrastive reference data; arranging a plane disk sheet between an electronic probe and an end surface to be measured; clinging the bottom surface of the plane disk sheet to the end surface of the product; acquiring a measured data signal by the electronic probe; calculating the contrastive reference data of the contrastive reference surface in a microcomputer; and displaying the measuring result on a display screen. The measuring device mainly comprises a working table, a workpiece clamping seat, a vertical ledge, an electrical control mechanism and a measuring component; and the measuring component which comprises a position block and the electronic probe is arranged at the top of the workpiece clamping seat. The invention has the advantages that the measuring result for the first time is very close to the minimum value; the measuring data is accurate; and the measuring efficiency is high.

The invention discloses a construction method of a municipal administration road subgrade, and relates to the technical field of municipal road construction. The construction method comprises the following steps that (1), a foundation is handled, specifically, the protruding part of the foundation surface layer is removed, the sunken part of the foundation surface layer is filled and leveled up with soil, a road roller is used for repeated rolling from both sides to the middle, and the sunken part of the foundation is continuously filled with the soil until the foundation reaches the requireddegree of consolidation and intensity; (2), a bottom layer soil base is filled; (3), a function soil base is filled, specifically, the upper surface of the bottom layer soil base is sequentially filled with a saline-alkaline soil layer, an upper layer soli layer and a gravel layer, and the saline-alkaline soil layer, the upper layer soli layer and the gravel layer are compacted; (4), a rod surfaceis constructed; and (5), a drainage ditch is laid. According to the construction method of the municipal administration road subgrade, drainage performance of a road is increased, an anti-deformationdevice is arranged in the bottom layer soil base in the width direction of the rod surface, the situation of downward moving of the road surface due to the fact that the bottom layer soil base movestowards the two sides can be prevented, and meanwhile, damage to the road by living things can be effectively prevented.

The present invention provides one kind of mold regulator of powder molding machine, and belongs to the field of mechanical technology. The mold regulator set near the mold includes one mold seat, one material storing unit connected to the mold seat and with material hole, and one material discharging unit comprising one circular core rod and one cylindrical sleeve, and one regulating unit around the middle part of the core rod. The mold regulator has the advantages of simple operation, easy regulation and high stability.

The invention discloses a model cleaning device based on photocuring 3D printing. The model cleaning device comprises a shell, a cleaning mechanism and a material storing table, wherein one side of the shell is opened and a door is arranged at the opening; the top end of the inner wall of the shell extends downwards to form a mounting part; a mounting groove is arranged above the mounting part; the cleaning mechanism comprises a water pump, a flow divider, a liquid inlet pipe, a liquid outlet pipe and an impeller; the water pump and the flow divider are both arranged at the bottom end in the shell; a liquid inlet of the water pump is connected with a pipeline and extends to the bottom end in the shell; a liquid outlet of the water pump is connected with the flow divider through the pipeline; the impeller is arranged in the mounting groove and is rotatably connected to the mounting part through a pivot at the bottom; a cover plate is detachably and fixedly connected to the upper openingof the mounting groove; a liquid discharge hole is formed in the center of the impeller; and the liquid discharge hole penetrates through the impeller and extends into the pivot. According to the model cleaning device based on photocuring 3D printing, the traditional manual cleaning is replaced by equipment cleaning, so that the cleaning process is more convenient and fast, the working efficiencyis greatly improved, and the cleaning effect is more perfect.

The invention discloses a nail bag type ecological protection slope. The nail bag type ecological protection slope comprises a slope body, plant bags and anchor piles. The multiple rows of plant bagsare fixed to the slope surface of the slope body along different heights, PVC plates are fixed to the two sides in the plant bags, through holes are formed in the PVC plates, each plant bag is fixed to the slope surface through two anchor piles, the anchor piles are L-shaped rods, the bottom ends of the anchor piles penetrate through the through holes in the PVC plates and are inserted into the slope body, a protection mechanism is arranged between every two adjacent plant bags located on the same row, the protection mechanisms are used for providing supporting force at the bottoms of the plant bags, the protection mechanisms comprise top columns, rotary plates, middle plates, side plates and protection plates, the two opposite sides of the top columns are rotationally connected with the rotary plates, positioning structures are arranged at the tail ends of the rotary plates separately, and one anchor rod is inserted into each positioning structure. The plant bags are conveniently fixed on the slope surface, the structure is stable, and the slope protection effect is good.