78results about How to "With safety protection" patented technology

The invention relates to a coal mine underground rubber hose for drawing out methane, which is prepared by taking natural gum, neoprene and butadiene-acrylonitrile rubber used together as a rubber layer material of the rubber hose, taking acetylene carbon black, conductive channel black, conductive furnace black and extra conductive furnace black as antistatic agents, taking the mixture of carbon black N375, phthalic acid and dibutyl phthalate as a softening agent, taking the mixture of antimony trioxide, decabromo propyl ether, aluminum hydroxide and paraffin as a fire retarding agent, and adopting a process for manufacturing a conventional rubber hose. The coal mine underground rubber hose has antistatic and flame-retardant effects, and through the verifications of the National Coal Mine Support Equipment Quality Supervision and Inspection Center and the National Coal Mine Dustproof Ventilation Safety Product Quality Supervision and Inspection Center, the coal mine underground rubber hose meets the requirements on the safety performance inspection specification standards of HG/T2490-93 and MJ/191-80 coal mine underground rubber hoses for drawing out the methane in the industry.

The invention discloses a synchronous dust-removing wood end buffering and smoothing device, which comprises a dust-removing box, a frame, an installation shell and a base. The frame is installed and fixed on the base. A large pulley is installed on the right side of the drum, and the large pulley is connected with the small pulley on the output shaft of the drive motor through a V-belt. Mounting plate, a grinding plate is installed on the right side of the mounting plate, multiple support springs are provided on the outer ring of the mounting plate, a dust removal box is installed on the outside of the left end of the drum, and an air duct is connected to the left side wall of the dust removal box. A cooling fan is installed, and the other end of the air pipe is connected with a ring pipe arranged on the right side of the installation housing, and a plurality of air blowing heads are installed on the inner side of the ring pipe. The present invention can carry out fast wood grinding operation, and can remove dust synchronously during processing, so as to prevent the dust from flying everywhere to pollute the environment and endanger the health of workers.

The invention discloses a method and a system for testing the minimum bending radius of a full-size nonmetal pipe. According to the fundamental principle of the method, a tested pipe is repeatedly bent in a reciprocating way, or the tested pipe is fixed on a bending test platform, load is applied to enable the tested pipe to bend to a certain bending radius, and then the pressure bearing performance of the nonmetal pipe in an adjusted bending state or a certain bending radius state can be tested by a hydrostatic pressure and bursting test system, and the minimum storage bending radius and the minimum working bending radius of the nonmetal pipe can be evaluated according to the hydrostatic performance and the short-time invalidation pressure value.

The invention discloses a corrosion resistant water supply pipe. The corrosion resistant water supply pipe comprises a pipe body, a pipe core, an internal corrosion resistant coating and an external corrosion resistant coating, wherein the pipe body evenly covers the outer surface of the pipe core; the internal corrosion resistant coating evenly covers the inner surface of the pipe core; the external corrosion resistant coating evenly covers the outer surface of the pipe body; and the pipe body is made of high-density polyethylene, the pipe core is made of silica gel, and the internal corrosion resistant coating and the external corrosion resistant coating are both made of epoxy resin composite materials. In this way, the corrosion resistant water supply pipe has the advantages of novel structure, safety protection, good corrosion resistance, chemical damage prevention, long service life, convenient application, practicability and the like, and great market prospects are achieved on the aspect of popularization of the corrosion resistant water supply pipe.

The invention discloses an abrasion-resistant communication sub-pipe which comprises a pipe body, an abrasion-resistant layer and a lubrication coating. The lubrication coating uniformly covers the outer surface of the pipe body, the abrasion-resistant layer uniformly covers the outer surface of the lubrication coating, the cross section of the pipe body is polygonal, the cross section of the abrasion-resistant layer is round, the pipe body is made from high-density polyethylene, and the abrasion-resistant layer is made from stainless steel. In the mode, the abrasion-resistant communication sub-pipe has the advantages of being novel in structure, safe in protection, good in lubricity, good in abrasion-resistant performance, prolonged in service life, convenient, practical and the like and has the wide market prospect on the aspect of popularization.

The invention discloses an intelligent accompanying infant early-education platform, and the platform comprises a machine body housing. The front surface of the machine body housing is provided with a liquid crystal touch screen in an inset manner. A side wall is provided with an operation button and an interface panel in an inset manner. The interior of the machine body housing is provided with an integrated circuit board, and the interface panel is provided with a microprocessor in an inset manner. The microprocessor is provided with a built-in LCD driver, and the LCD driver is connected to a data line strip of the liquid crystal touch screen. A data interaction end of the microprocessor is connected with a video collection module, a voice interaction module, and a fingerprint recognition module. The microprocessor is also connected with a network connection module and a GPS positioning module. The network connection module is used for achieving the network data transmission, and is also connected with a safety certification module. A power pin of the microprocessor is also connected with a power management module. The platform is diversified in functions, is simple in operation, has the functions of safety certification and intelligent certification, and can effectively guarantee the use safety and the health of infants.

The invention discloses a security window whose louver can be adjusted fully, which is made up of window outer frame, window sash, lock, the window sash includes side frame, louver, louver spindle, louver baffle, louver position limiting device and louver adjusting component. The invention uses louver spindle and position limiting device to bond the louver and the baffle together, when the louver is acted by external force, the external force is transmitted to the side frame through the louver baffle, thus the whole window sash has effect to resist external force commonly. The position limiting component restrains the transition of the louver spindle, and it does not affect the rotation, the gear on each louver spindle engages with the gear rack or gear belt, toggling one piece of louver can make all the louvers rotate with any angle. The invention provides a security protection window which is simple, flexible, whose window sash can be opened fully, and the louver can rotate freely in 360 degrees range, and it has functions of sunlight shading, light quantity adjusting, and noise insulating and reducing.

The invention discloses an antistatic electric conduit comprising a conduit body, an electrostatic protection layer and an outer insulation coating. The electrostatic protection layer uniformly covers the conduit body. The outer insulation coating uniformly covers the electrostatic protection layer. The cross section of the conduit body is circular, and the conduit body is made of polyvinyl chloride. The electrostatic protection layer is made of metal. The outer insulation coating is made of alumina. The antistatic electric conduit of the invention has the advantages of novel structure, safety protection, electrostatic protection, electrostatic accumulation prevention, greatly reduced risk of electrostatic breakdown, longer service life, convenience and practicality, and the like, and has a broad market prospect in the popularity of antistatic electric conduits.

The invention relates to the field of energy-saving air conditioners, and particularly relates to an efficient energy-saving air conditioner fresh air treatment device with a germ killing function. The efficient energy-saving air conditioner fresh air treatment device comprises a treatment box installed at an air outlet of an efficient energy-saving air conditioner, wherein a ventilation cavity isformed in the treatment box in a penetrating manner; a sealing net plate used for covering the ventilation cavity is arranged on the side, away from the efficient energy-saving air conditioner, of the treatment box; a plurality of sterilization air guide plates are evenly arranged and installed in the ventilation cavity; ultraviolet disinfection lamps are installed on the sterilization air guideplates; the left side and the right side of the ventilation cavity are each provided with a transmission cavity in the treatment box; and a drive assembly used for driving the multiple sterilization air guide plates to swing at the same time is installed in one transmission cavity. The efficient energy-saving air conditioner fresh air treatment device has the function of sterilizing and disinfecting air exhausted by the efficient energy-saving air conditioner, the human body comfort is good, and the efficient energy-saving air conditioner fresh air treatment device is worthy of popularization.

The invention discloses a strength detection device for a wind wheel blade of a fan generator set. The strength detection device comprises a bottom plate, a box body, a hydraulic cylinder and a forward and reverse rotation motor, a notch is formed in the inner side of the bottom plate, a fixing base is fixedly connected to the upper end of the bottom plate, a fixing groove is formed in the fixing base, a blade is inserted into the fixing groove, a fixing rod is connected in the fixing base through threads, the lower end of the fixing rod is in close contact with the surface of the blade, the box body is fixedly connected to the upper end of the bottom plate, the inner side of the box body is fixedly connected with the fixing base, and a first switch and a second switch are fixedly installed at the right end of the box body; the first switch and the hydraulic cylinder are connected with an external power source in series through wires, and the second switch and the forward and reverse rotation motor are connected with the external power source in series through wires. According to the strength detection device for the wind wheel blade of the fan generator set, the strength detection device has the characteristics of convenience in transferring and clamping, capability of realizing multi-point detection and safety protection.

The invention discloses a static synchronous compensator device of a three-phase three-bridge-arm power distribution network and a control method. The static synchronous compensator device is specially composed of a pre-charging circuit, a control module, a power module, a protection module and a human-computer interaction interface. The static synchronous compensator device has the advantages that the problem of impact current produced by high-voltage network-hanging start and voltage rise and fall of the device is solved by utilizing forward characteristics of the pre-charging circuit and an inverse proportional function; the device has a friendly human-computer interaction interface, the selectable reactive compensation mode and operation information display of the device can be achieved, and the device is more humanized and intelligentized; 3, the idle handling capacity can be ensured according to a power distribution network voltage environment; 4, a traditional lowpass filtering method is replaced by adopting a movable pointer average filter method and a novel approach smoothing crest method, the operating efficiency of an algorithm routine is improved, and the problem of reactive current detection delaying is eliminated. The cost of the device is reduced, the technical contents of the reactive compensation device are enriched, and the device has a certain reference value on engineering application.

The invention discloses a piece of fragrance underwear, which comprises a breast supporter, an inner liner, a lacing belt, shoulder straps and fragrance bags in independent arrangement, wherein the inner liner is arranged at the inner surface of the breast supporter; an interlayer space is formed between the inner liner and the breast supporter; the fragrance bags are arranged in the interlayer space; the lacing belt is connected with the two sides of the breast supporter; one end of each shoulder strap is connected with the upper end of the breast supporter; the other end of each shoulder strap is connected with the upper end of the lacing belt. By using the mode, the fragrance underwear has the advantages that the structure is novel; the breasts are protected; the independent fragrance bags are arranged in the fragrance underwear; the fragrance is pleasant; the body and the mind are relieved; safety, protection, convenience and practicability are realized, and the like. Wide market prospects are realized in fragrance underwear popularization.

In order to solve the problem that protection is not easy to perform during tunnel construction in the prior art, the invention discloses a tunnel construction protection device based on municipal construction. The tunnel construction protection device comprises a bottom plate, universal wheels are uniformly mounted on the bottom surface of the bottom plate, a convex plate is welded to the upper surface of the bottom plate, a connecting rod is welded to the left side of the upper surface of the protruding plate, a handle is fixedly installed at the upper end of the left side face of the connecting rod, the protruding plate is sleeved with a clamping plate, a supporting rod is welded to the upper surface of the clamping plate, a lantern ring is welded to the top end of the left side face ofthe supporting rod, a guide frame is sleeved with the lantern ring, a fastening screw is installed between the lantern ring and the guide frame, a spiral spring is fixedly connected between the lowerend of the lantern ring and the guide frame, and a mounting block is welded to the top end of the guide frame. According to the device, a first motor and a second motor are reasonably used for controlling a connecting film, the connecting film is tensioned on the inner wall of a tunnel, tensioning of the inner wall of the tunnel is further achieved, and therefore safety protection is conducted during tunnel construction.

The invention discloses a detachable pipeline connector which comprises a connector body, a spring buckle and a sealing ring, wherein the connector body comprises a first support pipe, a second support pipe and a bending piece; the first support pipe is vertically connected with the second support pipe through the bending piece; the spring buckle is respectively arranged on the inner side of the first support pipe and the second support pipe; the sealing ring is respectively arranged on the inner side of the first support pipe and the second support pipe and is arranged on one side opposite to the spring buckle and away from the bending piece. In such a manner, the detachable pipeline connector provided by the invention has the advantages of novel structure, safety protection, detaching convenience, mounting convenience, firm fixing, high sealing property, convenience, practicability, and the like, and has wide market prospect in the popularization of the detachable pipeline connector.

The utility model discloses an overhead attached type vertical steel pipe truss for assisting in mounting a pump pipe. The truss comprises truss steel pipe stand columns, truss cross rods, truss attachment rods and truss foundations. The number of the truss steel pipe stand columns is two. The two truss steel pipe stand columns are installed on the truss foundation at a certain interval, and the two sides of the opposite faces of the two truss steel pipe stand columns are connected by welding a plurality of truss transverse rods. A full-length truss internal space is formed between the multiple truss cross rods and the two truss steel pipe stand columns, and the truss internal space is used for pump pipe stand pipe installation and maintenance operation. The truss attachment rods are arranged on the upper portions of the truss steel pipe stand columns, located in the middles of the left width and the right width of the main bridge on the top of the truss and fixedly connected with thebridge structure body through embedded iron pieces. The truss is of an assembled structure and has the advantages of being small in size and good in bearing capacity, and therefore the stability of the pump pipe is improved.