45results about How to "Meet the needs of the working environment" patented technology

The invention provides a simple effective and reliable full-dimension vector propelling device capable of being applied to stratosphere aerostats in various layouts through proceeding from the reality, using the existing propelling technology and combining the work environment of the stratosphere aerostats. In addition, the invention provides a low-cost and low-structure-load stratosphere aerostat ground model machine scaled vector propelling device through using the existing brushless motor and digital steering engine technology and combining the ground test requirements of the stratosphere aerostats. A detailed structure is shown in the accompanying drawing. The device totally consists of three major parts including a propelling device, a vector rotating mechanism and a connecting mechanism, wherein the propelling device provides in-plane thrust, the vector rotating mechanism provides an in-plane steering moment, a connecting part between the propelling device and the vector rotating mechanism is an industrial stage transmission device, an onboard control system respectively sends control signals to the propelling device and the vector rotating mechanism, the propelling device and the vector rotating mechanism respectively carry out rotating speed and vector angle regulation according to the signals, and further, the vector propelling function of the stratosphere aerostats can be realized.

The invention provides a universal Bluetooth module production test system and method based on an applet. The system depends on high and new technologies such as cloud storage, the mobile internet, the internet of things and signal detection, and has the advantages of being high in accuracy, low in cost, high in efficiency, easy to use, easy to implement, traceable in data and high in technology generalizability; and in addition, the device has excellent portability, and can almost meet the working environment requirements of field test personnel and after-sales personnel in various application occasions.

The invention discloses an excavator bucket tooth and a preparation method thereof, and solves the problems that conventional bucket teeth are general in wear resistance, impact performance and the like, short in service life and high in production cost. The excavator bucket tooth comprises the components in percents by mass: 0.25-0.29% of C, 1.10-1.40% of Mn, 1.50-1.90% of Si, 1.40-1.70% of Cr, 0.02-0.06% of Al, 0.10-0.15% of Mo, and the balance Fe and unavoidable impurities. The invention also provides the preparation method of the excavator bucket tooth, and the preparation method comprises operations of casting and heat treatment. The excavator bucket tooth is substantially improved in mechanical properties, and especially obviously improved in toughness, hardness, tensile strength, wear resistance and the like, and low in material cost.

The invention provides a polytetrafluoroethylene film for solar panels, and a making method thereof. The method comprises the following steps: uniformly mixing polytetrafluoroethylene powder with a specifically composed composite solvent, carrying out constant temperature slaking, carrying out compression molding, carrying out high temperature heat treatment, rapidly cooling, slicing, and carrying out plasma modification treatment to make the polytetrafluoroethylene film with very high light transmittance. The polytetrafluoroethylene film made in the invention has the advantages of excellent high temperature resistance, excellent wear resistance, excellent weatherability and good mechanical performances, so the polytetrafluoroethylene film for solar panels is suitable for various extreme environments where the solar panels are possibly positioned in, and completely meets demands of severe working environment of the solar panels.

The invention discloses a mobile power supply for a ship. The mobile power supply comprises a housing having a sealed structure. An electrical interface panel is arranged on the housing; an electric switch, a charging interface, and a display screen are arranged on the interface panel; and a waterproof cover is arranged at the periphery of the electrical interface panel and is provided with a waterproof zipper. A socket is arranged at a geometric center of the lower bottom of the housing; at least one first waterproof ring and one second waterproof ring encircle the periphery of the socket. According to the mobile power supply, a lithium battery is used as a power supply and mounting or dismounting can be completely easily by a buckle. Meanwhile, the mobile power supply has advantages of good waterproof function, small and exquisite power supply size, high endurance, easy mounting and dismounting, rapid charging of currents, and high economy.

The invention provides a preparation method and an application of a front solar cell packaging film. The method comprises the following steps: firstly, mixing polytetrafluoroethylene powder with a complex solvent with specific components evenly; sequentially carrying out constant-temperature curing, compression molding, high-temperature thermal treatment, rapid cooling, slicing and plasma modified treatment to prepare a front film base; and sequentially evaporating an MgF2 film, a TiO2-ZrO2-La2O3 mixture film and an Al2O3 film to form the final front solar cell packaging film. The front solar cell packaging film has high light transmittance; and the light transmittance at 300-1200nm can be up to over 90.5%. Furthermore, the front solar cell packaging film provided by the invention also has excellent high-temperature resistance, abrasion resistance and weather fastness and good mechanical property, therefore, the front solar cell packaging film provided by the invention can be applicable to various extreme conditions which an unmanned aerial vehicle can face, and meets the work environment requirements of the unmanned aerial vehicle.

The invention relates to the technical field of pipeline conveying equipment, in particular to a composite steel pipe. The composite steel pipe comprises a pipe body, wherein the pipe body is formed by a stainless steel layer and a PE resin layer in a combined mode, the stainless steel layer is located on the outer layer of the pipe body, and the PE resin layer is located on the inner layer of the pipe body. The pipe body is designed to the combined structure of two kinds of materials, the stainless steel layer is located on the outer layer of the pipe body, the PE resin layer is located on the inner layer of the pipe body, the two kinds of materials supplement each other, not only is the good performance of the stainless steel layer reserved, but also the anti-corrosion, anti-aging and long-service life advantages of the PE resin layer are played, the overall performance of the pipe body is improved, cost is saved, and the requirements of the work environment are met.

The present invention relates to an earthquake-proof grooveless coupling for enabling pipes to be connected only by pushing a grooveless pipe into both sides thereof in a state in which upper and lower coupling segments are assembled and fastening a bolt and a nut. The earthquake-proof grooveless coupling (1000) of the present invention comprises: a packing (1100) made from an elastic material andinto which pipes (1, 2) for transferring fluid are fitted from the left and right sides thereof; the upper and lower coupling segments (1200, 1300) for encompassing the packing at the upper and lowerparts thereof so as to accommodate the same, and restricting the axial movements of the pipes (1, 2) at both end portions thereof as the segments become closer to each other; and a fastening means (1400) comprising the bolt (1410) and the nut (1420) for fastening the upper and lower coupling segments to each other, wherein the upper and lower coupling segments have holding parts (1220, 1320) formed in a saw-toothed shape and respectively provided at both end portions (1210, 1310) in the direction of the central axis of the inner peripheral surface thereof, the holding parts are formed to be smaller than the radii of the pipes (1, 2) and formed to have greater hardness than the pipes (1, 2), and the upper and lower coupling segments have cut grooves (1230, 1330) formed to have a predetermined width in the axial direction at equal angles in the radial direction of both end portions (1210, 1310) in the direction of the central axis of the inner peripheral surface thereof, and formed in aslot shape so as to be positioned between the outer diameter of the holding part and the inner diameter of a packing accommodating groove.

The invention discloses a relieved tooth and a preparation method thereof, and the relieved tooth and the preparation method disclosed by the invention can be used for solving the problems of poor abrasion resistance and impact property of an existing relieved tooth. The relieved tooth disclosed by the invention comprises the following compositions in percentage by weight: 0.29%-0.33% of C, 0.90%-1.40% of Mn, 0.8%-1.20% of Si, 1.40%-1.70% of Cr, 0.001%-0.005% of B, 0.02%-0.06% of Al and the balance of Fe. The invention provides the preparation method for preparing the relieved tooth, and the preparation method comprises a casting process and a thermal treatment process. The relieved tooth disclosed by the invention is good in mechanical property, high in hardness, high in tensile strengthand high in tenacity and can meet the special working environment requirements of a loader.

The present invention proceeds from engineering reality, utilizes existing propulsion technology, and combines the working environment of stratospheric aerostats to propose a simple, effective and reliable full-scale vector propulsion device that can be applied to stratospheric aerostats with various layouts. And using the existing brushless motor and digital steering gear technology, combined with the ground test requirements of the stratospheric aerostat, a low-cost, low-structural load scaled vector propulsion device for the ground prototype of the stratospheric aerostat was proposed. See attached drawing for detailed structure. The device is composed of three major parts, including the propulsion device, the vector rotation mechanism and its connecting mechanism. Among them, the propulsion device provides in-plane thrust, and the vector rotation mechanism provides in-plane steering torque. The connecting part between the two is an industrial-grade transmission device. The onboard control system sends control signals to the propulsion device and the vector rotation mechanism respectively, and the two adjust the speed and vector angle respectively according to the signals, so as to realize the vector propulsion function of the stratospheric aerostat.

The invention discloses a flexible waveguide and a signal transmission system. The flexible waveguide comprises an embossed flexible waveguide which is provided with a first end and a second end; and a pipe body reinforcing layer which is formed by that a reinforcing material is disposed on the external surface of the embossed flexible waveguide through coating. The flexible waveguide is used for solving a technical problem that electronic equipment in the prior art does not have a signal transmission device which can achieve the stable transmission of a large-power signal and a function of continuous steering at the same time, and achieves a technical effect that the flexible waveguide has the signal transmission device which can achieve the stable transmission of the large-power signal and the function of continuous steering at the same time.

The invention relates to a flexible supporting leg used in walking mechanics and relative concrete pump, which comprises a supporting box connecting the base and rotating the rotational axle; a sheath tube extending inside the supporting box; and a supporting leg sheathing on the front end of sheath tube and vertically extending. Wherein, said supporting box and sheath tube have a hydraulic cylinder with bidirectional function; two ends of said hydraulic cylinder are individually mounted on the fixing point at the end of supporting box and the farthest fixing point of sheath tube; and the rotational axle is between two ends of supporting box and de-center from the extension axle of hydraulic cylinder. The concrete pump can use said flexible supporting leg. The invention has tight structure, better forcing property, and shorter distance from the supporting leg rotational axle to the rotational device. And the concrete pump can better stability and wider application.

A plunger type digital pump mainly comprises a flow distribution end cover, a shell, low-pressure valve bodies, high-pressure valve bodies, a cylinder body, a roller plunger, flow distribution slide ways, sleeves, an output shaft, bearings and an end cover, wherein the cylinder body is formed by stacking five parts, the roller plunger is arranged in a fifth cylinder body, plunger cavities are divided into oil suction channels and oil pressing channels by a fourth cylinder body, a second cylinder body is embedded in a first cylinder body and a third cylinder body, the low-pressure valve bodiesand the high-pressure valve bodies are uniformly arranged at intervals in the circumferential directions of the first cylinder body, the second cylinder body and the third cylinder body, and valve core controllers are uniformly arranged at intervals in the circumferential direction of the second cylinder body; the first flow distribution slide way, the second flow distribution slide way and the third flow distribution slide way are mounted and fixed to the output shaft, a first rectification valve seat and a high-speed valve core are embedded in each low-pressure valve body, closing control can be carried out through electric signals, and a second rectification valve seat and a valve core are embedded in each high-pressure valve body; and by adjusting the working state and sequence of thevalve cores in each low-pressure valve body, discrete control on the flow can be realized, and then variable control on the output flow of a plunger pump can be realized.