62results about How to "Avoid personal safety hazards" patented technology

The invention discloses a system for general practitioner auxiliary diagnosis and therapy based on a network hospital. The system comprises a medical record receiving module, a medical record matching module and an auxiliary diagnosis module, wherein the medical record receiving module is used for receiving an electronic medical record, the medical record matching module is used for matching the received electronic medical record with a medical record template in a medical record template library to obtain the medical record template of which the matching degree is greater than a preset threshold valve, the medical record template is used for storing the disease type and the disease symptom information corresponding to the disease type, and the auxiliary diagnosis module is used for obtaining the matched disease type and the disease symptom information corresponding to the disease type, and outputting the matched disease type and the disease symptom information corresponding to the disease type, so as to provide reference for a general practitioner. The invention also discloses a method for the general practitioner auxiliary diagnosis and therapy based on the network hospital. The system and the method have the advantages that the problem of insufficient medical level of the general practitioner in the existing medical health service is solved, the medical level of the general practitioner is improved, and the personal safety hidden hazards to a patient caused by the diagnosis error of the general practitioner are avoided.

The invention discloses modified asphalt for a road and a preparation method. The modified asphalt contains the following components: asphalt, SBS, polybutylene terephthalate, carbon powder, attapulgite clay, epoxy resin, waste rubber, polypropylene fibers, cellulose ether, nano titanium dioxide, sodium chloride, sodium silicate, filler, a compatilizer and a softener. The preparation method comprises the following steps: firstly, preparing pasty attapulgite clay; weighing asphalt and adding the same into a reaction tank; raising the temperature till the asphalt is in a dissolved flowable state; adding a polymer component, the cellulose ether, the compatilizer and the softener into the reaction tank to stir and mix to react for 2-4h; then adding the residual components into the mixture; then placing the mixture into a mixer to be mixed for 2-4h; and cooling the mixture to obtain the modified asphalt. The modified asphalt not only has the characteristics of better cold resistance, crack resistance, aging resistance and high strength, but also has a certain snow-melting and anti-freezing property, and greatly improves the using safety of an asphalt pavement.

The invention provides a rail nut loosening detection and maintenance device and method based on a CCD camera. The rail nut loosening detection and maintenance device comprises a rack, a moving wheelrolling on the rail and a moving motor driving the moving wheel to rotate are arranged at the bottom of the rack, the detection and maintenance device is arranged on the rack, and comprises adjustingmechanisms, nut screwing mechanisms and the CCD camera, the two adjusting mechanisms are correspondingly opposite to two tracks of the rail, the adjusting mechanisms comprise lead screws which are vertically arranged, lifting motors driving the lead screws to rotate and adjusting platforms sliding up and down on the lead screws, the two nut screwing mechanisms are arranged on the adjusting platforms, and are symmetrical relative to the lead screws, the nut screwing mechanisms comprise universal sleeves and rotating motors driving the universal sleeves to rotate, the CCD camera collects bolt images, and sends the collected images to an image treatment module to process the images, a main controller analyzes and compares the information of the bolt images, controls the rotation of each motor, automatically detects loose nuts of the rail and maintains the loose nuts.

The invention discloses an anti-shielding failure lightning rod without threading installation and an installation tool thereof. The lightning rod comprises a lightning rod bar, a wiring clip, a balancing device and a needle bar hanger, wherein, the wiring clip comprises a pressure pad and a lower cover; one end of the lightning rod bar is connected with the needle bar hanger; the needle bar hanger is connected with the lower cover; the pressure pad is in movably connected with one end of the lower cover; a damping ring is fixed on the needle bar hanger. The lightning rod also comprises a spring self-locking device to be connected with the wiring clip; and the spring self-locking device is used for fastening the wiring clip on a ground wire. In order to install the lightning rod without threading, the installation tool of the anti-shielding failure lightning rod comprises a hanging plate with a through hole at the lower end and a trolley arranged on the hanging plate; a positioning device and a fixing device are arranged under the trolley in sequence, wherein, the positioning device is used for positioning the anti-shielding failure lightning rod at the required position, and withdrawing the installation tool after the installation is completed; and the fixing device is used for fixing the anti-shielding failure lightning rod on the ground wire.

The invention relates to precise casting processes and independently designs a waterglass-process precise casting process with carbon dioxide hardening and high temperature sand strip in order to solve the problem that defects are prone to occur in chemical method hardening sand-strip processes and low-mould waterglass-process casting. The process includes wax preparation, wax mould making, wax mould checking, wax mould group tree, coating preparation, shell making, hot air dewaxing, shell calcination, shell checking, liquid steel pouring, cleaning cutting and castings examination. By means of the waterglass-process precise casting process, device corrosion, environment pollution and worker personal safety potential hazards which are present in traditional chemical method hardening sand strip processes can be solved, meanwhile, qualities of castings surfaces and interior formation can be greatly improved, the finished product rate of castings is increased, the workload of post-treatment is lowered, working environment of a shell making workshop can be improved, production cost is lowered, and large part production capacity of traditional waterglass shells is greatly increased.

The invention discloses an unmanned aerial vehicle (UAV) and a method for monitoring coalfield fire area distribution and combustion situation. The UAV is composed of a wireless communication module, a control system, a data storage module, a power supply, an inertial navigation system, a space positioning module and a data monitoring module. The main operation method comprises: the control system of the UAV receives an instruction of a ground host to start flight, the inertial navigation system, the space positioning module and the data monitoring module acquire and synchronize exterior orientation attitude information in real time, and the ground host simulates and fits coalfield fire area geomorphic characteristics by using orientation information and geomorphic image information acquired by the UAV, and integrates infrared thermal imaging information, hybrid index gas proportion indexes (e.g., CO / CO2) and atmospheric temperature and humidity to predict coalfield fire area surface temperature distribution characteristic and corresponding fire combustion situation. The UAV and the method can quickly and safely simulate the geomorphic characteristics and surface temperature field distribution of a large-range coalfield fire area and predict the fire combustion situation.

The invention discloses a remote-control electric deicing machine for power overhead lines. The remote-control electric deicing machine for the power overhead lines comprises a machine frame (1), wherein a driving gear (2), a driven gear (3) and a fixed support (4) are installed on the upper portion of the machine frame (1), a scraper knife (5) is installed on the fixed support (4), auxiliary wheels (9) are installed below the driving gear (2) and the driven gear (3), and a battery (17) and a control cabinet (18) are installed on the lower portion of the machine frame (1). The remote-control electric deicing machine for the power overhead lines is easy to operate, high in efficiency, good in deicing effect, capable of avoiding potential personal safety hazards of workers, wide in application range, capable of deicing the overhead ground lines and optical cable lines on which AC or DC deicing can not be conducted, low in required energy consumption, being controlled in a long distance, saving a large amount of labor, reducing a large amount of energy consumption, improving efficiency, saving capital and reducing cost.

The invention provides a monorail crawler-belt-type water cooling wall climbing detecting robot and relates to the field of wall climbing robots. According to the monorail crawler-belt-type water cooling wall climbing detecting robot, the problems that work such as thickness measuring of the surface of the water cooling wall of an existing power plant boiler, surface accumulated dust treatment andboiler interior condition shooting all adopt manual operation for detection, the work environment in the boiler is severe, the work efficiency is low, and the potential personnel safety hazard existsin manual operation of a blast furnace hearth are solved. A mounting plate is fixed to a vehicle body, auxiliary supporting mechanisms are arranged on the two sides of the vehicle body and fixedly connected with the mounting plate, and a guiding mechanism is mounted at the front end of the vehicle body. Thickness measuring probe mechanisms are arranged on the two sides of the vehicle body and fixedly connected with the mounting plate, and another thickness measuring probe mechanism is arranged at the lower end of the vehicle body. According to the monorail crawler-belt-type water cooling wallclimbing detecting robot, simultaneous detection of a plurality of water cooling wall pipes can be achieved, and the work efficiency is effectively improved. The monorail crawler-belt-type water cooling wall climbing detecting robot is used for measuring the surface thickness of the water cooling wall of the power plant boiler,.

The invention relates to the field of traffic safety guarantee systems, and particularly relates to an urban tunnel waterlogging safety prevention and control system. By arranging a background control center and a wireless communication module, the water level condition in a tunnel and real-time working condition information of an audible and visual alarm, a gate, a drainage pump body assembly and the like can be collected, and a driver can rush to the site for rescue in the first time when an emergency occurs. When the water level exceeds a first water level sensor, a controller of the first water level sensor controls a common pump body to be started, when the water level exceeds a second water level sensor, the controller of the second water level sensor controls the common pump body to be started, and meanwhile the audible and visual alarm is used for sending a tunnel no-pass warning to the driver; and when the water level exceeds a third water level sensor, the controller controls the common pump body and a standby pump body to be started, meanwhile, the audible and visual alarm is used for sending a tunnel no-pass warning to the driver, and the gate is started to intercept vehicles, so that the situation that personal safety risks of passengers are caused due to the fact that the vehicles are forcibly rushed into the tunnel by strong water flow is avoided, and the system serves as a third defense line.

The invention discloses a high-voltage transmission acousto-optic electroscope comprising an outer rod, a middle rod and an inner rod. A handle is fixed at the bottom of the outer surface of the outerrod. The outer rod is provided with a slide slot. Two first fixing parts of central symmetry are fixed on the outer surface of the middle rod. A second fixing part is installed on the inner rod. A fixing plate is installed in the inner rod. An acousto-optic alarm is arranged on the fixing plate. The upper surface of the acousto-optic alarm is connected with an amplifier circuit through a wire. The amplifier circuit is connected with a resistor through a wire. The resistor is connected with a conductive contact through a wire. An anti-interference electrode is installed at the bottom end of the conductive contact. The high-voltage transmission acousto-optic electroscope has a simple structure. Through the anti-interference electrode, blind areas of voltage detection are eliminated, and hidden danger of personal safety brought about by improper operation is avoided. The height can be adjusted as needed through a telescopic rod. The angle can be adjusted as needed through the spirally upward slide slot. Therefore, the work intensity is reduced, and the work efficiency is improved.

The invention provides an indoor unit and an air conditioner with the same. The indoor unit comprises a panel body, and an air-inlet grille detachably connected with the panel body; the air-inlet grille comprises multiple air-inlet grille units; the multiple air-inlet grille units are adjacently arranged; and at least one of the multiple air-inlet grille units is detachably connected with the panel body. The air-inlet grille is arranged to be composed of the multiple air-inlet grille units; and the multiple air-inlet grille units and the panel body are arranged to be detachably connected, so that the air-inlet grille is disassembled more conveniently. The air-inlet grille is adopted, so that the air-inlet grille units can be separately opened when the air-inlet grille is disassembled, and the problem of potential personal safety caused by inclination of a human body in a direction far from a wall surface in disassembly of an integral air-inlet grille in the prior art is prevented. By adopting the air-inlet grille with the structure, the safety in disassembly of the air-inlet grille is effectively improved.

The invention relates to an octagonal closed-type bearing bracket connected with a shell and belongs to the technical field of fluid machinery and fluid engineering equipment. The shape of a bearing bracket body is composed of three different shapes, wherein the appearance of the section of the front bearing bracket body is in an octagonal shape; the appearance of the section of the middle bearing bracket body is in a circular shape to be connected with one half of the octagonal shape; and the appearance of the section of the back bearing bracket body is in a circular shape. The back part and middle part of the bearing bracket are provided with various positions and convex platforms, which need to be drilled, according to user requirements; and the suitable positions on the octagonal-shaped surface of the bracket are directly drilled. When the bearing bracket needs to be insulated or cooled and washed in a closed manner, the drilled convex platforms do not need to be arranged on the bracket, and pipeline connection and piping are very convenient; an axial space which needs to be reserved to mount a mechanical seal pressing cover or a filler seal pressing cover is saved, the axial size of the bearing bracket is shortened and the strength of a rotating shaft is effectively improved; and the mould cost, manufacturing cost and equipment management cost of equipment are reduced.

The invention discloses a device and method for centering a nozzle and a wafer. The device comprises a wafer loading module, a position detection module, a parameter setting module and a position adjustment module, wherein the wafer loading module is used for loading the wafer; the position detection module is used for identifying the position and the profile of the nozzle in real time so as to acquire data of the position and the profile of the nozzle; the parameter setting module is used for setting a reference point of the nozzle according to the data of the position and the profile; and the position adjustment module is used for adjusting the position of the nozzle according to the position parameter to ensure that the reference point of the nozzle is aligned to the geometric center on the upper surface of the wafer loading module. By detecting and adjusting the position of the nozzle, the method realizes centering of the nozzle and the wafer to ensure that the defect of etching or insufficiently cleaning of the center area due to the deviation of the nozzle and the physical center of the wafer can be overcome.

The invention discloses an intelligent power supply system based on multiple electric devices. The system comprises a current monitoring module and a power supply control module; the current monitoring module is used for monitoring the working states of a plurality of electric devices in a target area; and the power supply control module is used for stopping the power supply of one or more electric devices of which the working states are abnormal, or stopping the power supply of the target area according to the number of the electric devices of which the working states are abnormal. Thus, thepower supply of one or more electric devices of which the working states are abnormal, or the power supply of the target area is stopped according to the number of the electric devices of which the working states are abnormal; damage to an entire power supply network in the target area which is caused by the abnormal working states of the electric devices can be prevented, economic loss to a userand personal safety hazards to the user can be prevented.

The invention relates to a non-contact type automobile electronic throttle pedal, which comprises a pedal arm, a shaft, an outer spring, an inner spring, a spring base seat, a bottom seat, a magnetic body partition board, a magnetic body, a chip, a wiring terminal and a connector, wherein the shaft is arranged in the center of the lower end of the pedal arm, one end of the outer spring and the inner spring is connected with the bottom of the pedal arm, the other end of the outer spring and the inner spring is arranged in the spring base seat, the spring base seat is arranged on the bottom seat, the magnetic body partition board is arranged at the front part of the lower end of the pedal arm, the magnetic body is riveted and connected inside the magnetic body partition board, the chip is welded on the bottom seat through ultrasonic waves, and the wiring terminal and the connector are welded on the chip. Compared with the prior art, the invention ensures the requirements of the precision and the stability of products, avoids the abrasion and other problems generated in the contact type automobile electronic throttle pedal, perfectly ensures the linear precision and the stability of the products, simultaneously ensures long service life and high precision of the products, and solves the problems of fuel oil waste and potential personnel safety hidden trouble caused by abrasion.

The invention provides a vehicle-mounted display screen protective device, a center control component and an automobile. The vehicle-mounted display screen protective device comprises an air sac, wherein the air sac is arranged on one side, deviating from a user, of a vehicle-mounted display screen; and the air sac is filled with gas. According to the vehicle-mounted display screen protective device, the air sac is arranged on the side, deviating from a user, of the vehicle-mounted display screen, the air sac is used for buffering the impact force to the vehicle-mounted display screen when thevehicle is collided, so that the risk that the vehicle-mounted display screen is broken is lowered, the personal potential safety hazard to a driver and passengers caused by break of the display screen is avoided, and the overall safety of the vehicle is improved.

The invention discloses a self-service cleaning system for a building curtain wall. The self-service cleaning system for the building curtain wall comprises a curtain wall system and cleaning system bodies, wherein the curtain wall system comprises multiple glass plates, and horizontal cross transverse keels are arranged on the inner sides between the vertically adjacent glass plates; the cleaningsystem bodies comprise motors located inside the cross transverse keels, and output rotating shafts of the motors sequentially penetrates through the outer walls of the cross transverse keels and transverse joints between the adjacent glass plates; the outer ends of the output rotating shafts are located on the outer sides of the glass plates and connected with L-shaped rotating rods, wherein each rotating rod comprises a first rod and a second rod which are perpendicular to each other, and the length of each first rod is smaller than that of each second rod; the top ends of the first rods are connected with the tail ends of the output rotating shafts so that the first rods can rotate along with the output rotating shafts; and rinsing sheets are arranged on one sides, facing the glass plates, of the second rods, wherein the rinsing sheets are clung to the glass plates. According to the self-service cleaning system for the building curtain wall, self-service cleaning of the curtain wall can be achieved, the surface of the curtain wall is effectively kept clean, the safety problem of high-altitude outdoor cleaning personnel is avoided, and the cleaning cost is greatly reduced.

The invention discloses a protective scaffold for fixed displacement of personnel. The protective scaffold comprises an operation platform, wherein mounting plates are symmetrically arranged on the two sides of the two ends of the top of the operation platform, rapid locking assemblies are arranged at the tops of the ends, close to each other, of the two mounting plates, supporting legs are arranged at the four corners of the bottom of the operation platform, clamping grooves are formed in the middle positions of the sides, close to each other, of the two supporting legs, a protective net is hinged to the tops of the sides, close to each other, of the two clamping grooves, hinge rods are hinged to the tops of the two sides of the protective net, and clamping blocks are arranged at the bottoms of the sides, close to each other, of the two hinge rods. Through mutual cooperation of the protective net, the hinge rods, the clamping grooves and the clamping blocks, the lower portion of the scaffold can be shielded and protected, the situation that tools of constructors accidentally fall off and hurt people below can be effectively prevented, the safety guarantee of the constructors below is improved, and the protective property of the scaffold is improved.

The invention relates to a special container with automatic alarm and liquid filling quantity setting functions for automobiles, and a using method of the container. A base is in a long and oval shape, so that the liquid filling barrel can stand on the ground stably; a barrel body is made of plastic, about 200 mm in diameter and has a larger capacity, a large number of vehicles can be filled, the vehicles can be filled in batches, and the working efficiency is improved; the barrel body is provided with an automatic alarm and liquid quantity setting device, so that liquid filling parameters are accurate; a handle is arranged at the top of the barrel, so that the mobile operation is more convenient; the filling is more convenient to insert due to the design of a duckbill filling port; and in addition, a turnover dustproof cover plate is adopted at an open part of the top, so that foreign matter can be prevented from entering the liquid when the special container is not used, and the liquid quality is guaranteed effectively. After filling, the special container is small in size and convenient to store. By means of the filling manner, the working efficiency is high, the labor intensity is reduced, and the operation is simple.

The invention discloses a bone cutting machine. The bone cutting machine which is disclosed by the invention can be used for providing power for a bone cutting knife through an eccentric wheel positioned on a motor reducing gear, providing the power for a structure of an automatic feed device through a lever, a flywheel and a reset spring, and providing the power for the automatic feed device by utilizing the unique characteristics of unidirectional power output of the flywheel which is a common flywheel of a bicycle. According to the bone cutting machine, the automatic feed device drives a synchronous belt to rotate through a synchronous pulley and drives a clamp base to move towards the direction of the bone cutting knife through an inclined rod combined with the synchronous belt, the clamp base is provided with a clamp which is similar to a rat clip and clamps an aggregate to be processed so that the feed quantity of the aggregate to be processed is consistent, and further a cut aggregate finished product is uniformly in size; in addition, the danger of personal safety, brought by manual feed, to an operator is prevented because of automatic feed.

The invention provides a vehicle-mounted air conditioner, an operation method, a control device and a computer readable storage medium. The vehicle-mounted air conditioner comprises a power supply battery, a driving circuit and a load which are electrically connected, and the operation method comprises the steps that electric quantity information needed by load operation is determined, and the driving circuit is controlled to output corresponding voltage to the load according to the electric quantity information. According to the vehicle-mounted air conditioner and the operation method, the vehicle-mounted air conditioner can be prevented from being in a high-voltage state all the time, and therefore the power utilization safety degree of the vehicle-mounted air conditioner is improved.

The invention discloses a forest lightning protection and fire prevention device which comprises a lightning protection vehicle. A main cavity with an upward opening is formed in the lightning protection vehicle, an outer cylinder is rotatably connected into the main cavity, an outer cavity with an upward opening is formed in the outer cylinder, a middle cylinder is connected into the outer cavity through threads, a middle cavity with an upward opening is formed in the middle cylinder, and the inner cylinder is connected in the middle cavity through threads. The device is used for automatically carrying out lightning protection in a forest so as to reduce forest fire caused by thunderbolt, when thunder weather is about to happen, stones on the ground are shoveled away through a scraper so that a land guide head can be conveniently drilled into the ground downwards to be fixed, and a lightning rod is lifted upwards to improve the lightning receiving efficiency and prevent the surrounding trees from being struck by lightning; and when the surrounding trees are too luxurious, part of branches are removed through the electric saw to prevent fire hazards caused by ignition of the surrounding branches in the lightning triggering process, full-automatic work is achieved, manpower is not needed, convenience and high efficiency are achieved, and personal potential safety hazards are avoided.

The invention discloses an industrial automation system capable of alarming and automatically switching. The system comprises a switching device, an alarming device, a processing system, and a feedback system. The processing system, the alarming device, and a blocking device form a closed loop. The alarming device is located at the outlet of the switching device. The blocking device is located atthe middle of the switching device. One end of the switching device is connected to one end of the alarming device through a wire, the other end of the alarming device is connected to one end of the blocking device through a wire, and the other end of the blocking device is connected to the other end of the switching device through a wire. The system can automatically detect the working conditionof industrial equipment, and can automatically control the switching of the equipment, thereby greatly increasing the work efficiency, and avoiding the personal safety hazards that may be caused to workers.

The invention discloses an automatic dock AGC tire inflation device and system. The device comprises an inflation module, a controlled, a communication module, a laser sensor and a driving module, a tire code sent by an AGV is received by the communication module, scanning positioning is conducted on an inflation mouth of a target tire corresponding to the tire code by the laser sensor, the inflation module is driven by the driving module to butt with the inflation mouth of the target tire, and the inflation module is controlled by the controlled to inflate the target tire after the inflationmodule butts with the inflation mouth of the target tire. The device has the advantages that the whole inflation process is automatically completed, manual intervention is not needed, which saves timeand strength, potential safety hazards on workers brought by manual operation are avoided, the automatic dock AGV tire inflation device is installed in an AGV operation site, the AGV does not need toreturn to a maintenance workshop, and the technical problem that an existing AGV tire inflation wastes time and strength, has potential safety hazards and reduces the operation efficiency is solved.

The invention discloses a silicification-free sealing gasket for an aerosol system valve. A preparation method comprises steps: modified high-molecular-weight organic silicon wax GW-6501S is compatible with ethylene propylene diene monomer, a reinforcing agent, a filling agent, a plasticizer, a coupling agent, a cross-linking accelerant and a cross-linking agent; wherein the addition amount is preferably 3-6 parts by weight, when the addition amount is less than 3 parts by weight, the self-lubricating effect is not obvious, but when the addition amount is more than 6 parts by weight, the material physical properties can be reduced to a certain extent. According to the invention, the self-lubricating property of the ethylene propylene diene monomer sealing gasket material can be improved; automatic loading in the production process is facilitated; the frictional resistance is reduced when a valve rod of the valve works, dragging or suspension problems of the rubber sealing gasket in valve rod working process are solved; the surface silicification treatment process of the ethylene propylene diene monomer sealing gasket is omitted, potential personal safety hazards caused by the factthat low-molecular-weight organic molecules enter a human body along with propellants or liquid medicine are avoided, and the safety of the sealing gasket for the aerosol system valve is improved.

The invention relates to the technical field of carriers, and provides a gas pressure balancing device used for a carrier rocket and the carrier rocket. A pressure relief bolt of the gas pressure balancing device is used for cooperating with a gas leakage hole preset in a rocket body of the carrier rocket, and therefore the gas pressure balancing device has the condition that gas pressure inside the rock body communicates with gas pressure outside the rocket body. Preset elastic pre-tightening force is applied to a windproof cover plate by utilizing a springback assembly, and therefore selective sealing to a first gas channel is realized. Before the carrier rocket takes off, the windproof cover plate seals a first sealing channel, and the situation that redundant objects are introduced into the rocket body when the rocket in the final assembly and transportation environment can be effectively avoided. Dynamic balancing of atmospheric pressure inside and outside the rocket body can be realized by taking the stressed boundary condition of the windproof cover plate in the flying process of the rocket as the constraint condition of the springback assembly. Airtightness of the gas leakage hole is structurally guaranteed, and the gas leakage hole does not need to be blocked manually. Before launching, a plugging object of the gas leakage hole does not need to be dismounted, and potential safety hazards brought by toxic propellant filling of the rocket are avoided.

The invention discloses a remote control drilling and repairing equipment lifting device and an application method, relates to an equipment lifting technology, and overcomes the defects of other technologies at present. The device comprises a remote lifting handle, a touch display screen, two remote transceiving modules, a PLC (Programmable Logic Controller) control box, a high-definition explosion-proof camera, a proportional electromagnetic valve, an electromagnetic proportional electro-hydraulic directional control valve, an electromagnetic proportional overflow valve, an electromagnetic proportional overflow flow valve and a hydraulic manifold block, wherein one ends of the remote transceiving modules are connected with the lifting handle and the touch display screen, and the other ends of the remote transceiving modules are connected with the PLC control box; the PLC control box is connected with the hydraulic manifold block; and the hydraulic manifold block is connected with drilling and repairing equipment.