31results about How to "Effective isolation protection" patented technology

The invention discloses a separate knob switch, terminal equipment and a working mode adjusting method of the separate knob switch. The separate knob switch comprises a knob switch and two hall sensors, wherein the knob switch is arranged on a control panel and comprises a rotating disk; a plurality of magnet components are arranged on the rotating disk along the circumference of the rotating disk; and the two hall sensors are arranged on a master control circuit board below the control panel, and are located on the contour edge of a vertical projection of the rotating disk on the master control circuit board. Through a separate design of the knob switch and the hall sensors, a rotating action of the knob switch is sensed by hall electromagnetic induction; the knob is separated from the master control circuit board; an opening design does not need to be carried out on the control panel; and the master control circuit board is completely isolated from the external environment, so that an effective isolating protection is carried out on the master control circuit board; and the knob switch can also be conveniently changed.

The invention is a JTAG isolation circuit used for a DSP and belongs to the technical field of optoelectronic countermeasure. The circuit uses a DSP, a CPLD (Complex Programmable Logic Device) chip, a conventional isolation transceiver of an integrated power supply, a high-speed isolation transceiver, an on-board JTAG connector and an outside-chassis JTAG connector to form a circuit for isolating JTAG signals. The circuit uses CPLD to achieve the connection and automatic detection and real-time switching of the two inside and outside JTAG connectors, so that the supporting for the on-board JTAG and the JTAG extension of the outside connector can be obtained and the inside and outside JTAG connectors can be easily connected when the single board debugging and the complete machine debugging are performed. In addition, effective isolation protection can be achieved due to the 2000V isolation voltage is supported for the outside JTAG signals and the effective performance of the operation process can be improved owing to the JTAG signals isolation under the condition that the power supply is isolated.

The invention relates to a frost heaving prevention uplift device for a telegraph pole in a frozen soil area, and discloses the frost heaving prevention uplift device which can be combined with a permafrost heaving layer for filling, support and fix the telegraph pole and avoid uplifting. The frost heaving prevention uplift device is characterized in that a bottom fixing structure is composed of a fixing seat and a plurality of spiral fixing plug pins; the spiral fixing plug pins are arranged on the fixing seat; the fixing base is a cylinder with one end sealed; a plurality of blocking umbrella plates are arranged on a sleeve at equal intervals; reinforcing ribs are arranged between the blocking umbrella plates and the sleeve; the reinforcing ribs are distributed below umbrella skirts of the blocking umbrella plates at equal angles; the reinforcing ribs are made of hard plastic; the edge of the blocking umbrella plate at the bottommost end is provided with a sliding cylinder; and the sliding cylinder is inserted into the fixing seat in a sleeved mode and is in close fit with the fixing seat.

The invention discloses a glue pouring method and glue pouring assembly of a propeller. The propeller comprises a stator and a stator shell arranged on the outer side of the circumference of the stator. The glue pouring method further comprises the steps that the stator is arranged on a sealing positioning piece in a sleeving mode, wherein a glue pouring channel is formed between the outer wall face of the sealing positioning piece and the stator shell; the stator shell is provided with an inlet and an outlet which communicate with the glue pouring channel; seal glue is poured into the glue pouring channel from the inlet; and air in the glue pouring channel is extracted through negative pressure adsorption at the position of the outlet. By means of the technical scheme, corrosion of external water vapor and air to the stator of the propeller can be effectively reduced, and the service life of the stator of the propeller is prolonged.

The invention discloses a preparation method of concrete repairing mortar. The preparation method comprises the following steps: (1) adding citric acid into corn stalk powder, performing acidification, performing washing by using distilled water to neutrality, and performing drying to obtain acidified stalk powder; (2) mixing strain cells, a urea solution, a calcium acetate solution and a sodium alginate solution according to a certain weight ratio, performing stirring, allowing the stirred material to stand, adding the product into the acidified stalk powder obtained in the step (1), performing uniform mixing, and allowing the mixed material to stand to obtain a repairing liquid; and (3) mixing the repairing liquid obtained in the step (2), autoclaved quartz sand (particle size of 0.5-1.0mm) and water to form the mortar. According to the preparation method provided by the invention, the repairing mortar prepared by the method can be applied to internal structural repair of concrete,has strong bonding performance, is not easy to fall off, and has a stable repair effect, and wide applicability.

The invention discloses a rotation control structure for a wafer transfer robot. The rotation control structure comprises a supporting structure, a driving structure, a transmission structure and a rotating structure; the supporting structure comprises a bottom plate, a base and a panel, the base is of a hollow cavity structure with a top opening and a bottom opening, a partition plate is arranged on the inner wall of the base and divides the base into a top-layer base body and a bottom-layer base body, and the panel and the bottom plate are installed on the base; the driving structure penetrates through the rotating structure and is mounted on the base; the transmission structure is mounted on the base and comprises a first transmission structure, a second transmission structure and a connecting shaft; the connecting shaft is rotationally connected to the base; the first transmission structure is located in the bottom-layer base body and fixedly connected with the bottom end of the connecting shaft and the driving structure; and the second transmission structure is located in the top-layer base body and fixedly connected with the top end of the connecting shaft and the rotating structure. The transmission mechanisms are arranged on the top layer and the bottom layer of the base and fixedly connected with the connecting shaft, so that the device is compact in structure, small in occupied space and good in control precision and movement stability.

The invention relates to an insulation protection net for a power transmission line, comprising a first insulating support pillar, a second insulating support pillar and a telescopic support; the first insulating support pillar and the second insulating support pillar have the same size and structure; the first insulating support pillar includes a base, The top of the base is provided with an accommodating cavity, and a telescopic tube is installed in the accommodating cavity, and the telescopic tube includes no less than two sleeves, and no less than two sleeves are socketed with each other; located at the top of the telescopic tube A connection plate is welded on the casing; the connection plate is provided with a mounting hole; the mounting hole is used to connect the telescopic support; the first insulating support strut is connected to one end of the telescopic support through the mounting hole; the second insulating support strut is passed through The mounting hole is connected with the other end of the telescopic bracket.

The invention discloses a safe guarding device for a power relaying protection field work and a use method thereof. The safe guarding device comprises a guarding device and an isolating device, wherein the guarding device is used for maintaining the work, and the isolating device is used for operating the work. The guarding device for maintaining the work comprises a secondary cable core guardingcap, a guarding cap, a terminal block guarding fence and a protection work voice prompter, which are used for protecting a cable core, a pressing plate and a terminal block. The isolating device for operating the work comprises a protecting screen safety isolating guardrail, a protecting device isolating cover, a protecting pressing plate isolating cover, a terminal block isolating cover, a secondary security isolating cover, a CT externally attached terminal isolating cover, a security temporary storage box, a working signboard and an operation handle isolating cover, which are used for isolating and protecting equipment. Each guarding device is adhered with a marking note corresponding to the work state. The safe guarding device has the advantages of fixation, reliability, obvious mark,simple operation, norm and cleanness, and no influence to operation of the equipment by a magnetic field of a magnet, and is suitable for isolating and protecting various kinds of relay protection equipment and devices.

The invention relates to a high-temperature resistant coating which comprises the following components according to weight percentage: 45-70 of quartz powder, 20-45 of water glass, 4-6 of water-soluble resin and 4-8 of water. A preparation method of the high-temperature resistant coating comprises the steps: directly putting all the components together and evenly stirring the same to prepare the product. The high-temperature resistant coating has simple production process, low production cost and strong maneuverability. After the high-temperature resistant coating is coated on surfaces of a steel billet and a metal part, the surfaces of the steel billet and the metal part and heating burner gas can be effectively isolated and protected, thereby the fire consumption of metal in the heatingprocess is reduced, and the metal yield rate is improved.

The invention discloses computer hardware detection external equipment convenient to maintain. The equipment comprises a shell, a control panel and an electrical element fixing plate, the side of theshell is fixedly connected with a side pipe; a rotating rod is fixed in the shell through a bearing; a screw rod is rotationally mounted in the side pipe through a bearing; the top edge of the bearingbottom plate is connected with a first side plate and a second side plate through hinges. An inner plate is connected to the center of the top of the bearing bottom plate, a strip-shaped hole is formed in the inner wall of the shell, the electrical element fixing plate is installed on the inner plate, a sliding piece is arranged in the second sliding groove, and the bottom of the sliding piece isconnected with the side edge of the electrical element fixing plate through a connecting rod. According to the computer hardware detection external equipment convenient to maintain, hardware detection of a computer can be conveniently carried out by taking out the equipment, meanwhile, isolation protection of taking-out use is carried out on the equipment body, meanwhile, the interior of the equipment can be conveniently maintained, and the practicability of the equipment is improved.

The invention discloses a preparation method of concrete repairing mortar. The preparation method comprises the following steps: (1) adding citric acid into corn stalk powder, performing acidification, performing washing by using distilled water to neutrality, and performing drying to obtain acidified stalk powder; (2) mixing strain cells, a urea solution, a calcium acetate solution and a sodium alginate solution according to a certain weight ratio, performing stirring, allowing the stirred material to stand, adding the product into the acidified stalk powder obtained in the step (1), performing uniform mixing, and allowing the mixed material to stand to obtain a repairing liquid; and (3) mixing the repairing liquid obtained in the step (2), autoclaved quartz sand (particle size of 0.5-1.0mm) and water to form the mortar. According to the preparation method provided by the invention, the repairing mortar prepared by the method can be applied to internal structural repair of concrete,has strong bonding performance, is not easy to fall off, and has a stable repair effect, and wide applicability.

The invention provides an adsorptive, flame-resistant and biodegradable temporary protective coating, which comprises the following components in percentage by mass: 80.0 to 55.0 percent of deionized water, 15.0 to 25.0 percent of propanetriol, 0.5 to 2.0 percent of xanthan gum, 0 to 1.0 percent of sodium carboxymethylcellulose, 3.4 to 12 percent of dihydric alcohol or trihydric alcohol condensation compound, 1.0 to 4.5 percent of triacetic acid glyceride, and 0.1 to 0.5 percent of conserving agent. The temporary protective coating has the advantages that: the temporary protective coating canbe used through spray coating or brush coating, and conglutinates dust and over-sprayed paint particles floating in the air mainly through the combined action of the characteristics of isolation, adsorption and flame retardance so as to fulfill the aim of further purifying the air; the temporary protective coating can effectively prevent spraying lacquer mist from influencing the coating quality in the coating process, and can effectively improve the fireproof performance of a coating workshop; the temporary protective coating can be cleaned away by water washing to save labors; the temporaryprotective coating is dissolvable in water and is biodegradable; and the temporary protective coating can have an effective isolating protective effect on walls of the coating workshop, devices, pipelines and the like, and prolong the service life of the devices.

The invention discloses compound nano micelles simultaneously loaded with anthracycline antitumor antibiotics and salvianolic acid A, and a preparation method and an application thereof. The compoundmicelles contain a therapeutically effective amount of anthracycline antitumor antibiotics, salvianolic acid A and an amphiphilic high-molecular polymer; through combined action of electrostatic attraction between an alkaline group of the anthracycline antitumor antibiotics and an acidic group of salvianolic acid A and self-assembly of the amphiphilic high-molecular polymer in an aqueous medium, the two drugs are jointly stably wrapped in nano micelles by a simple physical encapsulation mode; the obtained compound micelles have uniform particle size, have the encapsulation rate of 95% or more,and has both the drug loading amount and the stability obviously better than those of single-drug micelles.

The invention discloses a protective isolation switch, which comprises a shell, a contact base with head and tail engagement, an aviation connector, some wires, and protective isolation plates arranged on contact base. This invention solves the problems during using switch, such as electric arc, spark, damage to whole switch, and other hidden danger on security.

The invention provides a transportation device for horizontal steel coils: it includes a bottom plate and symmetrically arranged left and right brackets arranged on the bottom plate. The corresponding surfaces of the left and right brackets are supporting slopes respectively. 1. The support slopes of the right bracket together form a V-shaped support space for supporting the recumbent steel coil. Grooves are respectively arranged on the support slopes of the left and right brackets, and the grooves are arranged along the axis when the steel coil is placed. Arranged in the direction, a transverse positioning stopper composition is provided in the groove. The transverse positioning stopper composition includes a rotating shaft and several blocks arranged on the rotating shaft and arranged axially along the rotating shaft. The rotating shaft is arranged in the groove Inside and connected with the left and right brackets, the stoppers are respectively hinged on the rotating shaft through corresponding torsion springs. The invention makes the recumbent steel coil play a good limit function in its lateral direction after being loaded, and effectively prevents the lateral movement of the steel coil when the transport vehicle crosses a curve, thereby solving the hidden safety hazard in the steel coil transportation process.

The invention relates to the technical field of solar power generation pavements, in particular to a construction technology for solar power generation pavement electric power groove backfilling and compaction. The technology comprises the following steps of blowing and drying an electric power groove; paving a photovoltaic pavement protection template; coating the electric power groove with an adhesive layer oil; mixing and transporting electric power groove filler; layered filling and inserting and smashing the electric power groove; covering and rolling the electric power groove; performingwaterproof treatment on an electric power groove joint; and maintaining the electric power groove. According to the construction technology, the damages caused by the solar pavement in the process ofbackfilling and compacting the electric power groove can be avoided; and the construction process has the characteristics of being simple in process, strong in operability, rapid and efficient in construction, low in construction cost and good in construction quality, and is remarkable in beneficial effect and suitable for application and popularization.

The invention discloses a high-voltage isolation and discharge circuit, including: a logic conversion circuit, a high-voltage isolation circuit and a discharge circuit; wherein: the logic conversion circuit is used to output a corresponding logic control signal to the high-voltage circuit according to the channel control signal received. The isolation circuit; the high-voltage isolation circuit is used for disconnecting or conducting according to the logic control signal; the discharge circuit is used for disconnecting or conducting according to the received discharge control signal. The high-voltage isolation and discharge circuit disclosed by the invention can meet the requirements of high-voltage isolation and energy discharge, has a simple structure, and has high isolation and stability.

The invention discloses a construction method for an integrated underwater cap flexible water-stop structure. The water-stop structure includes a pile foundation casing and a prefabricated cap casing. The prefabricated cap casing is set on the pile foundation casing. The top of the bottom plate is welded with a shear key through the embedded parts, and the bottom of the bottom plate is embedded with a capsule tray. The capsule tray is ring-shaped and arranged around the pile foundation casing. A ring-shaped groove is formed under the prefabricated platform cover box, and a water-tight capsule is arranged in the ring-shaped groove. The water-tight capsule is in the shape of a ring. Pressurized gas or pressurized liquid, the inner and outer ring surfaces of the capsule are respectively attached to the outer wall of the pile foundation casing and the inner wall of the capsule tray, and form a vertical water-tight sealing belt. The invention has the advantages of simple structure and convenient installation. Through the setting of the capsule tray, the direct contact between the water-stop capsule and the concrete surface is avoided, and the water-free construction operation environment of the underwater cap is effectively ensured.