4results about How to "Suitable for field work" patented technology

The application discloses a connecting sleeve structure of glass fiber material and a manufacturing method, relates to the technical field of connecting sleeves, and comprises a drill connecting sleeve, the drill connecting sleeve is composed of a connecting sleeve main body and a connecting sleeve internal thread, and the connecting sleeve main body and the connecting sleeve internal thread on the drill connecting sleeve are both made of glass fiber material. The drill connecting sleeve made of glass fiber can effectively avoid the adhesion and seizure of the drill connecting sleeve and the connecting steel piece under heavy load working conditions by utilizing the different thermal expansion coefficients of glass fiber and steel on the premise of meeting sufficient tensile strength, so that the utilization efficiency of the drill connecting sleeve is improved. Meanwhile, the drill connecting sleeve made of glass fiber has the characteristics of corrosion resistance and fatigue resistance, is suitable for field operation and continuous operation, and has the advantages of light weight, convenient logistics transportation and storage compared with the drill connecting sleeve made of steel.

The utility model relates to the technical field of coal and coal bed gas development, and discloses a portable coal bed gas rapid desorption device which comprises a left box body electric unit base and a right box body drainage unit base. The left end of the left box body electric unit base and the right end of the right box body drainage unit base are spliced to form a device base; a battery unit support is mounted on the outer side of the top surface of the left box body electric unit base, a coal sample crushing tank is mounted on the top surface of the left box body electric unit base, and a stirring cutter is arranged in the coal sample crushing tank. The gas desorption device is simple in overall structure and low in cost, and effectively solves the problems that in the coal or coal bed gas exploitation process, a gas field desorption device is complex and not easy to carry.

The application discloses a portable ore sample grinding device and belongs to the technical field of grinding devices, characterized in that the device comprises a cylinder, the lower part of the cylinder is a grinding cavity, the grinding cavity is a sandwich layer between a grinding cylinder and a grinding rod, a threaded rod passes through a vertical cavity, a screw nut is arranged above the grinding rod, an inner sleeve and an outer sleeve are arranged above the screw nut, respectively, first and second shifting rods are arranged on the inner sleeve and the outer sleeve, respectively, pulleys are arranged above the inner sleeve and the outer sleeve, a rope is wound around the pulleys, and the two ends of the rope are fixed to the inner sleeve and the outer sleeve, respectively, a second spring is arranged on the inner sleeve, and the second spring applies a vertical downward force to the inner sleeve. Compared with the prior art, the device has the characteristics of conveniently and quickly grinding ore samples in the field.

The utility model relates to a power supply with a built-in charger, which comprises a battery module, an upper shell and a bottom shell, a buckle is arranged on the top surface of the upper shell, a limiting plate is arranged at the top of an inner cavity of the upper shell, and a limiting strip is arranged at the joint of the limiting plate and the upper shell. The side, facing the battery module, of the limiting strip is in an arc shape matched with the battery module, the limiting plate divides the upper shell into an element bin and a containing bin, and a support is arranged in the area, corresponding to the containing bin, of the bottom of an inner cavity of the bottom shell. The power source is divided into the element bin and the containing bin for containing the battery module through the limiting plate, space utilization is reasonable, the limiting strips on the limiting plate are matched with the supports to limit the battery module, internal displacement of the battery module is prevented, the protection plate is arranged between the battery module and the side plate of the upper shell to play a buffering role, the anti-seismic performance of the battery module is improved, and the service life of the battery module is prolonged. And the protective sleeve is arranged on the charging and discharging interface, so that silt and water are prevented from entering the shell, and the device is suitable for field operation.