8results about How to "No slippage" patented technology

This invention relates to the field of oilfield thermal recovery well technology, and discloses a well completion process device, a column-type ground anchor, and a method for increasing the prestress of the oil layer casing. The well completion process device includes a surface casing (1) located below the surface, an oil layer casing (2), and a casing head body (3). The oil layer casing is connected to the inner surface of the casing head body via a connecting assembly (40). A column-type ground anchor (500) is connected to the bottom of the oil layer casing. The column-type ground anchor includes an anchor claw (502) and a plunger body (530). A liquid outlet (501) is formed on the column-type ground anchor. The anchor claw can extend out of the side wall of the plunger body and insert into the formation. Cement can be discharged from the liquid outlet to seal the annular gap between the oil layer casing and the formation. This invention uses hydraulic oil to insert the anchor claw into the formation, pulling the oil layer casing to a preset load. After the oil layer casing is pulled up, it is clamped to the inner wall of the casing head body via the connecting assembly, thus increasing the prestress.

This utility model relates to the field of mold technology, and in particular to a continuous pipe clamp mold that avoids long and short sides. The continuous pipe clamp mold includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper mold base, an upper forming male, a movable forming male, a cutter, and a stripper plate. The upper forming male and the cutter are fixedly connected to the upper mold base. The movable forming male and the stripper plate are movably disposed on the upper mold base. The cutter, the movable forming male, and the upper forming male are arranged sequentially along the feeding direction. This continuous pipe clamp mold that avoids long and short sides prevents material slippage during bending, resulting in high stability in material bending and forming, high product dimensional stability, and effectively shortens the cutter length, extending the cutter's service life. It solves the technical problems of existing pipe clamp molds, such as the easy occurrence of long and short sides during forming, poor product compatibility, and easy cutter breakage and failure.

This utility model relates to a fixing structure for a photovoltaic power station on a concrete flat roof, belonging to the field of photovoltaic power station fixing technology. The photovoltaic power station includes multiple photovoltaic brackets arranged in a straight line at equal intervals. The two mounting ends of the photovoltaic brackets are respectively fixed to two concrete counterweights, which are fixed to the roof. A concrete parapet wall is set on each side of the photovoltaic bracket arrangement direction, and the concrete counterweights are fixed to the roof. The two ends of the fastening cables are respectively fixed to the two concrete parapet walls, and the fastening cables are fixedly connected to all the concrete counterweights. This solves the problem of insufficient load-bearing capacity of the current roof for photovoltaic power stations.

The utility model discloses an assembly type machine room convenient to transport and hoist, and relates to the technical field of assembly type buildings, the assembly type machine room comprises a machine room body, a lifting lug and a machine cabinet door hinged on the machine room body, the machine room body comprises a steel structure frame, a foundation base, an assembly type cement foam plate and a foundation top plate; the foundation base is arranged at the bottom of the steel structure frame, the foundation top plate is arranged at the top of the steel structure frame, and the multiple assembly type cement foam plates are fixedly arranged on the steel structure frame; the lifting lug comprises a lifting lug head, a lifting lug bottom and a lifting hole; the top end of the head of the lifting lug is semicircular, the lifting hole is formed in the circle center of the semicircle, and the bottom of the lifting lug is fixedly arranged at the top end of the steel structure frame; a plurality of grooves are formed in the hole wall of the lifting hole, and the grooves are formed in the hole wall of the lifting hole in a petal-shaped surrounding mode. And an anti-skid rubber layer is arranged at the groove, so that the technical problem that many difficulties exist in the transportation and hoisting processes is solved.

The utility model discloses a kind of wobblers for baby carriage, belong to baby nursing apparatus technical field, comprising: shell, the shell has accommodating cavity, and outer surface is equipped with the installation mechanism for the wobbler whole detachably fixed on baby carriage handle or frame;Wobble mechanism, the wobble mechanism is set in the accommodating cavity;The wobbler for baby carriage under the premise of guaranteeing wobbler whole quick disassembly on baby carriage handle or frame, shell, installation mechanism and wobble mechanism are organically integrated;Fixed band and insert buckle cooperate arc fixed position, so that shell and frame keep close adhesion and leave trace floating space, swing amplitude can be completely transmitted without appearing slip or deviation, therefore, wobbler is continuously output stable, low amplitude, low frequency swing, significantly reduce the risk of structural looseness, noise escape and power interruption, and reduce the physical burden of parents when pacifying baby.

The invention provides a reconfigurable flexible strain sensor based on a magnetic connection interface and a preparation method thereof, and belongs to the technical field of flexible strain sensors. The strain sensor comprises a sensing module and a grid structure, and the sensing module and the grid structure are in reversible magnetic connection to realize dynamic switching of sensing directions and performance regulation and control. When the sensor is combined with a grid structure with different mechanical guiding characteristics in a magnetic attraction mode, a magnetic connection interface not only realizes stable attachment of components, but also allows the whole stress transmission path of the sensor to be changed through non-contact rapid replacement. Therefore, on the premise of not depending on external energy input and changing the structure of the sensor, the sensing direction (such as one-way and multi-way) and the sensitivity of the sensor are dynamically adjusted. The method thoroughly gets rid of the dependence of the traditional reconstruction technology on heat, light, electricity or chemical stimulation, and realizes convenient, reversible and zero-power-consumption reconstruction in a real sense.

The utility model discloses a kind of visual rectification structures of multi-welding gun nameplate welding, it is related to welding rectification technical field, including workbench, the workbench top surface one side is fixedly connected with multiple mechanical rocker arms, and mechanical rocker arm end is equipped with welding device, the mechanical rocker arm end one side is fixedly connected with visual sensor, and mechanical rocker arm bottom one side is fixedly connected with control box, the workbench top surface both sides are all fixedly connected with multiple workpiece tables, the utility model can utilize double thread assembly to promote the multiple opposite components of its outer wall both ends synchronous along sliding groove outer wall to center movement, and drive its top clamping side plate tightly workpiece outer wall, and workpiece is firmly fixed in workpiece table top surface center using non-slip gasket, compared with the mode that magnetic plate simply relies on magnetic force adsorption, this kind of physical clamping can form all-around constraint to workpiece, even if there is the vibration caused by high-frequency electromagnetic oscillation, workpiece also cannot produce slip or displacement.

The utility model relates to the technical field of RRUs capable of being quickly assembled and disassembled, in particular to a convenient-to-maintain RRU external interface structure capable of being quickly assembled / disassembled, which comprises a shell, a connecting plate is abutted against the bottom of the shell, an insertion plate is fixedly connected to one side, close to the shell, of the connecting plate, the insertion plate is slidably connected in the shell, a positioning groove is formed in the insertion plate, and the insertion plate is fixedly connected with the shell. The beneficial effects of the utility model are that through the mutual cooperation among the pressing groove, the pressing block, the positioning block, the insertion plate, the positioning groove, the spring and the positioning frame, the device can control the movement of the positioning block by pressing the pressing block, thereby ensuring the stability of the insertion plate installed inside the housing, and the spring can push the pressing block to drive the positioning block to move, thereby ensuring the stability of the insertion plate. It is ensured that when the positioning block is inserted into the positioning groove formed in the insertion plate, slipping cannot occur, the installation stability of the connecting plate is ensured, the problem that an existing connecting plate is difficult to replace is solved, and the convenience of replacing the connecting plate and the connecting port is improved.