Abstract: Provided is a two-stage reverse-torque bent screw orientation tool. An existing bent screw orientation technology has the technical problems of large friction resistance, difficult control of a borehole track, a low drilling speed and the like, and restricts economic, safe and long-acting development of oil and gas. In order to solve the above problems, the two-stage reverse-torque bent screw orientation tool is invented and composed of a first-stage clutch mechanism and a second-stage clutch mechanism, and the first-stage clutch mechanism and the second-stage clutch mechanism are both composed of a battery, a battery compartment, a pressure sensor, an electromagnetic valve, a body, a plug, a piston, an outer tooth cylinder, an inner tooth cylinder, a transmission cylinder, a connecting cylinder, a bearing, a limiting cylinder, a lower joint, a thrust bearing, a battery compartment, a circuit board, a cover plate and the like.

Abstract: Disclosed is a fully articulated extendable wall-mounted shelf, including: a back plate; first side plate capable of rotating relative to the back plate to be flush with and/or attached to the back plate, the first side plate assembly including first connecting plate, first extendable plate and first fixing plate, the first extendable plate being capable of being extendably adjusted relative to the first connecting plate, the first fixing plate being rotatably connected to the first connecting plate; and second side plate assembly capable of rotating relative to the back plate to be flush with and/or attached to the back plate, the second side plate assembly including second connecting plate, second extendable plate and second fixing plate, the second extendable plate being capable of being extendably adjusted relative to the second connecting plate, the second fixing plate being rotatably connected to the second connecting plate.

Abstract: Provided are a truckle structure and a cabinet. The truckle structure comprises: a truckle and a support, wherein the truckle includes a mounting base and a wheel rotatably mounted on the mounting base; the support is composed of a mounting portion located at a lower middle position as well as two connecting portions respectively located on two sides of the mounting portion; the two connecting portions are formed in a manner that the left side and the right side of the mounting portion are upwards bent towards the middle, the support is rotatably connected to the mounting base through the two connecting portions, and the mounting base is located between the two connecting portions; and a mounting hole is formed in the mounting portion, center of the mounting hole and center of gravity of the truckle are on a same straight line, and center of gravity of the support deviates from the straight line. The truckle structure can be directly mounted on the ground and is firmer and more durable.

Abstract: Provided are a connecting fastener structure and a cable management frame. The connecting fastener structure comprises: a main frame body and a cover plate on which a connector is assembled, wherein the cover plate is detachably connected to the main frame body through the connector; connecting through holes are formed in the connector; at least one pair of connecting protrusions matched with the connecting through holes are arranged on the main frame body; a gap exists between the connecting protrusions of the same pair; the connector is inserted into the gap, and in this case, the connecting protrusions are clamped in the connecting through holes; and a whole structure composed of the cover plate and the connector can be directly disassembled from the main frame body, or be connected to the main frame body in an articulated manner, and in this case, the connector is connected to the main frame body in an articulated manner. The connecting fastener structure is convenient to use.

Abstract: Provided are a connecting fastener structure and a cable management frame. The connecting fastener structure comprises: a main frame body and a cover plate on which a connector is assembled, wherein the cover plate is detachably connected to the main frame body through the connector; connecting through holes are formed in the connector; at least one pair of connecting protrusions matched with the connecting through holes are arranged on the main frame body; a gap exists between the connecting protrusions of the same pair; the connector is inserted into the gap, and in this case, the connecting protrusions are clamped in the connecting through holes; and a whole structure composed of the cover plate and the connector can be directly disassembled from the main frame body, or be connected to the main frame body in an articulated manner, and in this case, the connector is connected to the main frame body in an articulated manner. The connecting fastener structure is convenient to use.

Abstract: Provided are a truckle structure and a cabinet. The truckle structure comprises: a truckle and a support, wherein the truckle includes a mounting base and a wheel rotatably mounted on the mounting base; the support is composed of a mounting portion located at a lower middle position as well as two connecting portions respectively located on two sides of the mounting portion; the two connecting portions are formed in a manner that the left side and the right side of the mounting portion are upwards bent towards the middle, the support is rotatably connected to the mounting base through the two connecting portions, and the mounting base is located between the two connecting portions; and a mounting hole is formed in the mounting portion, center of the mounting hole and center of gravity of the truckle are on a same straight line, and center of gravity of the support deviates from the straight line. The truckle structure can be directly mounted on the ground and is firmer and more durable.