34results about How to "Convenient for outdoor work" patented technology

The invention discloses an irregular small-sized land area measuring method based on a photoelectric measuring technology. The irregular small-sized land area measuring method is characterized by comprising the following steps: 1) determining a positioning base point in a land central area; 2) building laser beams which are vertical to one another on the basis of the positioning base point in order to partition a land into four areas; 3) erecting a measuring cable along an outer edge of each area, wherein photoelectric measuring instrument modules are distributed on the measuring cable at equal intervals; 4) acquiring distances between the photoelectric measuring instrument modules and the positioning base point, and transmitting the distances to a control terminal; 5) calculating a land graph and an area according to data acquired through the distances among photoelectric measuring instruments through the control terminal. By adopting the irregular small-sized land area measuring method based on the photoelectric measuring technology, distance information acquired by the photoelectric measuring instruments which are arranged along the edges of the land is utilized in conjunction with equal-interval arrangement of adjacent photoelectric measuring instruments, so that a coordinate graph of the land edges can be drawn, and high boundary annotation accuracy and high size control accuracy are realized; the method is easy and convenient to operate, and contributes to proceeding of outdoor operation.

The invention provides a portable multifunctional table and chair, and relates to the field of office supplies. The structure of the portable multifunctional table and chair is that a table frame (8) is provided with a table top. The bottom part of the table top is provided with a table box. A computer (1) is fixed on the table top. The front end and the two sides of the table top are provided with windshield plates (9) which are provided with lighting lamps (10). The windshield plates (9) and the table frame (8) are connected via a lifter. A printer (2) is fixed in the table box of the bottom part of the computer (1). A storage battery (3) is fixed at the bottom part of the printer (2). The bottom part of the table frame (8) is provided with four telescopic table legs (7). The bottom part of the table frame (8) is provided with a bearing which is connected with the bottom part bearing of a chair surface (4) via a telescopic connecting rod (6). Chair legs (5) are also connected at bottom part of the chair surface (4) via bearings. The beneficial effects of the portable multifunctional table and chair are that the structure is simple, the size is small, tools are complete and carrying and use are easy and convenient.

The invention discloses a combined-and-separated-type anti-theft window. The combined-and-separated-type anti-theft window comprises an anti-theft window body. A connecting part is arranged between ananti-theft grid of the anti-theft window body and a window sash, and the upper end and the lower end of the connecting part are slidably matched in a window frame of the anti-theft window body. One end of the connecting part is connected with the anti-theft grid, and the other end of the connecting part is connected to a frame of the window sash through a special lock. Concealing boxes are arranged on the window frame connected with the anti-theft grid and the connecting part correspondingly and used for concealing the anti-theft grid. The special lock is applied to the combined-and-separated-type anti-theft window and comprises a spring positioning plug pin mechanism and a key separating mechanism, the spring positioning plug pin mechanism acts on the anti-theft grid, and the key separating mechanism acts on the window sash. The structure is simple, design is reasonable, functionality is higher, using is convenient, the anti-theft window can be fixed randomly, hand clamping is prevented, and the problems of a traditional integrated anti-theft window are solved.

A new mobile map application service system based on GeoPDF technology relates to computer technology, especially a new mobile electronic map application system. The system comprises a GeoPDF preprocessing module, a rendering display module, an analysis module and a data comprehensive processing module. The system of the present invention enables each point on the pdf map to correspond to a specific geographic position in reality after the relationship between the coordinate systems is established for each position on the pdf map which originally has no specific meaning.

The invention discloses an irregular small-sized land area measuring method based on a photoelectric measuring technology. The irregular small-sized land area measuring method is characterized by comprising the following steps: 1) determining a positioning base point in a land central area; 2) building laser beams which are vertical to one another on the basis of the positioning base point in order to partition a land into four areas; 3) erecting a measuring cable along an outer edge of each area, wherein photoelectric measuring instrument modules are distributed on the measuring cable at equal intervals; 4) acquiring distances between the photoelectric measuring instrument modules and the positioning base point, and transmitting the distances to a control terminal; 5) calculating a land graph and an area according to data acquired through the distances among photoelectric measuring instruments through the control terminal. By adopting the irregular small-sized land area measuring method based on the photoelectric measuring technology, distance information acquired by the photoelectric measuring instruments which are arranged along the edges of the land is utilized in conjunction with equal-interval arrangement of adjacent photoelectric measuring instruments, so that a coordinate graph of the land edges can be drawn, and high boundary annotation accuracy and high size control accuracy are realized; the method is easy and convenient to operate, and contributes to proceeding of outdoor operation.

The invention discloses small-sized high-purity gas electric pressurizing equipment. The small-sized high-purity gas electric pressurizing equipment comprises an oil-free plunger pump, a driving motorand an automatic starting and stopping device. The driving motor rotates to drive the oil-free plunger pump connected with one end of a rotor shaft through the torque for high-purity gas automatic pressurization; the oil-free plunger pump completes the effect of pressurizing the low-pressure gas into the high-pressure gas in such way that a plunger performs the reciprocating motion in a cylinderbody to cause the change of a seal volume, and the output pressure can be increased by adopting a multi-stage pressurization mode; the oil-free plunger pump selects bottled high-purity gas as a gas inlet source according to a tested piece test function requirement, and a multi-stage oil-free electric pressurizing structure of an electric pump and the automatic starting and stopping device of the pressurizing equipment are reasonably designed; and the automatic starting and stopping device completes the automatic starting and stopping operation of the electric pressurizing equipment through anpneumatic gas inlet valve, a pneumatic output valve and an electric pump circulation bypass, non-load operation of the electric pump is realized, and the situation that due to motor load gas operating, the electric current is too large, and then the motor is burnout is avoided.

The invention relates to a portable drawing board which comprises a stretchy tripod (1) and a picture frame (2). The picture frame (2) is fixed on the stretchy tripod (1) through a connecting piece which can be assembled and disassembled, the upper edge and the lower edge of the picture frame (2) can rotate around a middle supporting point, supporting strips (3) with clamping grooves are arranged on the left edge and the right edge of the picture frame (2), a diagonal support (4) of the picture frame (2) is used for connecting and fixing the picture frame (2), the two ends of the diagonal support (4) are respectively provided with a clamping groove, and the clamping grooves are used for fixing the folded picture frame (2). The portable drawing board has the advantages that the drawing board can be unfolded and folded so as to be convenient to carry, meanwhile, the picture frame is provided with a lamp so that the great convenience is brought for a worker to work outdoors at night, meanwhile, tools, such as light and a desk, for outdoor daily life of the worker can be further provided, and the portable drawing board is simple in structure, wide in use range and high in applicability.

The invention provides a warning filler, a preparation method thereof and an application in protecting buried pipelines. The components of the warning filler include basic dye, lime powder and water. The preparation method comprises the following steps: step 1, uniformly mixing basic dye, lime powder and water to obtain a mixture; step 2, drying the mixture naturally to obtain a warning filler. The application in the protection of buried pipelines includes the following steps: step 1, continuously laying the warning filler directly above the buried pipeline to form a filler layer; step 2, backfilling the covering soil directly above the filler layer, restoring the landform until the excavation previous state. Low cost, convenient on-site construction, and can play a warning role for buried pipelines.

Multifunctional electric power cabinet is disclosed. The cabinet comprises a shell. A rain-proof sunshade is arranged on the top of the shell. Through grooves are arranged on two sides in the shell. Transverse plates are arranged in the through grooves. Sliding grooves are arranged in the surfaces of the transverse plates and are connected with vertical plates through sliding blocks. Multiple airoutlets are arranged in edge sides of the shell. Rainproof covers are arranged at corresponding positions in the air outlets. An opened door is arranged on the shell. An observation port is arranged in the opened door. A heat dissipation window is arranged in the lower portion of the opened door. There are three through grooves on the two sides in the shell and there are two vertical plates. Multiple clamp blocks are arranged in the through grooves. Through the above structure, a good heat dissipation effect is ensured; waterproof and rainproof performance can be realized and sunshading is achieved; the service life of the cabinet body is prolonged; and outdoor work is convenient.

The invention provides a warning filler, a preparation method thereof and an application of the warning filler in protecting buried pipelines. The warning filler comprises the following components: basic dye, lime powder and water. The preparation method comprises the following steps: step 1, uniformly mixing the basic dye, the lime powder and the water to obtain a mixture; and 2, naturally airingthe mixture to obtain the warning filler. The application of the warning filler in protection of the buried pipeline comprises the following steps: 1) continuously laying the warning filler over theburied pipeline to form a filler layer; and step 2, backfilling and earthing right above the filler layer, and recovering the landform to the state before excavation. The cost is low, field construction is facilitated, and the warning effect on the buried pipeline can be achieved.

The invention discloses a portable vehicle oil line circulating device and a working method thereof and relates to a vehicle overhauling device. In an oil line of a coach clutch operation system and an oil line of a lifting platform accelerator system of an automobile crane, air is particularly hard to exhaust from pipelines because long hydraulic pipelines of the oil lines are laid and are relatively complicated. The device disclosed by the invention comprises a hydraulic system and an electric system, wherein the hydraulic system comprises an electro-motor, a hydraulic pump, an overflowing valve, a first interface, a second interface and an oil tank; the hydraulic pump is connected with the electro-motor; an oil outlet of the hydraulic pump is connected with an oil inlet of the overflowing valve through an oil pipe; the oil outlet of the overflowing valve is connected with the first interface through the oil pipe; a pressure relief hole of the overflowing valve is connected with an oil returning pipeline; the second interface is connected with the oil tank; the first interface is arranged at the lower part of the oil tank; the second interface is arranged at the upper part of the oil tank; a returned oil filter connected with the second interface is arranged inside the oil tank; the electric system comprises a power switch, a positive terminal and a negative terminal. The device disclosed by the invention is simple in structure, capable of alleviating the labor intensity of a worker, and flexible and convenient to operate.

The invention discloses a switch box for outdoor work, comprising a protective shell, an exhaust window, a base, fixed plates, connecting plates, a baffle, a handle, a fixing block, a U-shaped supportplate, rollers, a shock absorber, exhaust fans, a rigid buffer spring, a first limiting card slot, a first fixing seat, a stud mounting hole, a limiting guide pillar, a second fixing seat, an adjusting nut and a second limiting card slot, wherein the exhaust fans are arranged on two side walls of the protective shell; the handle is arranged at the upper end of the protective shell; the exhaust fan is arranged on the inner wall of the protective shell; the connecting plates are respectively in threaded connection to four corners of the protective shell; and the fixed plates are respectively inthreaded connection to the four connecting plates. The switch box is convenient to disassemble and move, and good in heat dissipation effect and buffering effect.