39results about How to "Easy to transport and move" patented technology

The invention discloses a foldable integrated table and chair for students, and belongs to the field of table and chair equipment. The foldable integrated table and chair comprises a table body, a chair body, first supporting mechanisms and second supporting mechanisms, wherein the first supporting mechanisms and the second supporting mechanisms are used for supporting the table body and the chairbody respectively; the table body comprises a table top panel and a drawer panel, each first supporting mechanism comprises a stabilizing supporting rod and an adjusting supporting rod, the adjustingsupporting rod comprises a sleeve and an adjusting rod, and the top of the adjusting rod is rotatably connected with one side of the bottom face of the table body; first connection rods are rotatablyconnected with the other side of the table body, second connection rods are rotatably connected with the upper ends of the sleeves, the free ends of the first connection rods and the free ends of thesecond connection rods are connected and are rotatably connected with retractable rods, and the other ends of the retractable rods are connected with the free ends of the stabilizing supporting rods;the chair body comprises a chair panel and a backrest plate, each second supporting mechanism comprises a retractable supporting rod and a supporting rod, and the top of the supporting rod is rotatably connected with one side of the bottom face of the chair panel. According to the foldable integrated table and chair for the students, the drawer space can contain the folded chair body, and not only is the occupied space reduced, but also the chair body is protected; the size of the folded table and chair is small, and the table body and the chair body can be mutually limited and prevented fromspreading accidentally.

The invention belongs to the field of oil and gas field development engineering, and in particular relates to a method for exploiting low-permeability coalbed methane by active water displacement. This method selects the measure well group, determines the central injection well, and centrally treats the produced water of the coal seam through the skid-mounted sewage treatment device, and mixes a certain proportion of the produced water of the coal seam after treatment into the skid-mounted water injection. The active water system is synthesized in the device, and then the synthesized active water system is injected into the central injection well through the skid-mounted water injection device, and the adjacent coalbed methane production wells are drained for gas recovery until the active water components are monitored in the coalbed methane production wells , the center transfer injection well shuts down the boring well, and turns it into a coalbed methane production well to continue drainage. The invention changes the wettability of coal and rock, reduces the interfacial tension of gas and liquid, accelerates the migration and output of coal bed gas, improves the recovery rate of coal bed gas reservoirs, effectively solves the problem of coal seam production water treatment, and realizes the double efficiency of production increase and environmental protection.

The invention discloses a double-station high-efficiency automatic rubber forming machine. Rubber forming machine main bodies are arranged at two sides of a control box of the rubber forming machine separately, and guide sliding frames are symmetrically arranged in the middle part of each rubber forming machine main body; and supporting frames are fixedly connected at the tops of the guide slidingframes, the inner sides of the guide sliding frames are slidably connected with forming molds, and the two sides of the supporting frames are fixedly connected with equidistant feeding mechanisms. According to the machine, by arranging a sliding rod, and swinging teeth, when the swinging teeth push forwards a feeding box, a driving rotating wheel is driven to rotate, and a strip-shaped rubber material in a discharging cavity is added to the forming molds through the discharging cavity by means of the driving rotating wheel, a transmission swinging rod and a pushing plate, so that the placement for adding the rubber material into the forming molds is simplified; and the rubber material in the discharging cavity can be uniformly added into the forming molds only by pushing the feeding box forwards, so that the labor intensity of operators is reduced, the working efficiency is improved, and the productivity is increased.

The invention relates to a pressure workover device and a pressure workover method for a low-pressure oil-water well. A blowout preventer group is installed on the upper flange of the wellhead spool through bolts. There is a single ram BOP, the lower part of the single ram BOP is equipped with a four-way, the upper part of the single ram BOP is installed with a double ram slip BOP, and the double ram slip BOP is installed An annular blowout preventer is installed on the top, and a hexagonal grid platform is arranged on the outer periphery of the middle section of the annular blowout preventer. A sunken collection box is installed below the hexagonal grid platform. The bottom of the sunken collection box passes through four rectangularly distributed The outriggers are supported on the ground, and the bottom edge of the sunken collection box is connected with a discharge elbow. The middle and lower part of the annular blowout preventer is located in the central cylinder. Both ends of the lower beam are respectively equipped with lifting hydraulic cylinders, and the two lifting hydraulic cylinders pass through the sleeve vertically upwards respectively to connect with the upper beam. Pre-connect the blowout preventer group before operation, install the hot workover device, and pull out the tubing string. The invention can improve the wellhead environment, has low height, is convenient for overall relocation, and greatly shortens installation time.

The invention provides an A / C detection device and an obtaining method thereof. The A / C detection device comprises a bracket, a host computer, a servo turntable and a micro-strip antenna, wherein the bracket comprises a bearing platform and a plurality of foldable support legs; the host computer and the servo turntable are arranged on the bearing platform; the micro-strip antenna comprises a metal layer, a dielectric substrate and a plurality of antenna units; the metal layer is fixed on the servo turntable; the dielectric substrate is located at the upper part of the metal layer and is in a form of a flat plate; and the plurality of antenna units are arranged on the dielectric substrate and are in a form of an array. The bracket is arranged to comprise foldable and telescopic support legs; and an ordinary antenna is replaced with the micro-strip antenna, so that the volume and the weight of the A / C detection device can be effectively reduced; the A / C detection device is convenient to install and carry; and manpower and material resources are saved.

The invention provides a portable air target information obtaining device and an obtaining method thereof. The portable air target information obtaining device comprises a bracket, a servo turntable and a micro-strip antenna, wherein the bracket comprises a bearing platform and a plurality of foldable support legs; the servo turntable is arranged on the bearing platform; the micro-strip antenna comprises a metal layer, a dielectric substrate and a plurality of antenna units; the metal layer is fixed on the servo turntable; the dielectric substrate is located at the upper part of the metal layer and is in a form of a flat plate; the plurality of antenna units are arranged on the dielectric substrate and are in a form of an array; and the weight of the air target information obtaining device is smaller than 25kg. The bracket is arranged to comprise foldable and telescopic support legs; and an ordinary antenna is replaced with the micro-strip antenna, so that the volume and the weight of the air target information obtaining device can be effectively reduced; the air target information obtaining device is convenient to install and carry; and manpower and material resources are saved.