8results about How to "Well oriented" patented technology

The application provides a prefabricated pier column assembly structure for a high pier of a bridge, which comprises a pouring pedestal, a mounting groove is arranged in the middle of the top end of the pouring pedestal, and a plurality of reinforcing ribs are arranged on the bottom of the inner cavity of the mounting groove; a pier column body is arranged in the mounting groove, a plurality of plug-in holes matched with the reinforcing ribs are arranged on the bottom of the pier column body; a connecting seat is arranged above the pouring pedestal, and a slot with the same size as the mounting groove is arranged in the middle of the top end of the connecting seat. The straight-angle trapezoidal limiting block, the ball on the inclined surface of the straight-angle trapezoidal limiting block and the rotating roller close to the side of the slot play a good guiding and friction-reducing role in the installation process of the pier column body, the pier column body is conveniently positioned in the mounting groove, the requirement for the operation technology of the crane driver is reduced, the construction efficiency is improved, and the limiting assembly can flexibly limit pier column bodies with different heights.

The endoscope catheter comprises an endoscope catheter body (1) and a sheathing canal (3), the sheathing canal is arranged outside the endoscope catheter body in a sleeving mode, the endoscope catheter further comprises the containing body (2), the containing body can contain and / or be used for guiding the movement of the endoscope catheter body (1), the part, entering the human body, of the endoscope catheter body (1) is located in an inner cavity (20) of the containing body at least when the endoscope catheter is used, and the containing body (2) is at least provided with a sheathing canal connecting part (21) and a containing part (22). One end of the accommodating body is directly or indirectly connected with a sheath tube tail part (33) through a hollow sheath tube connecting part (21), and the accommodating part (22) is directly connected with an endoscope catheter tail part (13) or is connected with the endoscope catheter tail part (13) through an endoscope catheter connecting part (23) on the accommodating body (2); when the endoscope catheter is used, a user changes the containing length of the endoscope catheter in the inner cavity of the containing body by deforming the containing part of the containing body and / or driving the endoscope catheter to move relatively in the inner cavity of the containing body.

The utility model discloses a filter cloth production pressing mechanism which comprises a base, a pair of supporting plates are arranged on the upper wall of the base, a lower roller shaft is rotationally installed between the supporting plates, an upper roller shaft is arranged above the lower roller shaft, and pressing rollers are installed on the lower roller shaft and the upper roller shaft. The telescopic end of an electric push rod in the adjusting assembly is fixedly connected with a connecting frame of the sliding box, the vertical position of the sliding box can be accurately adjusted by controlling stretching and retracting of the electric push rod, then an upper roller shaft is driven to move vertically, the distance between the upper roller shaft and a lower roller shaft is adjusted, and use of filter cloth with different thicknesses is met; a transmission shaft in a main shaft in the driving assembly is meshed with a second transmission gear of the upper roll shaft through a second driving gear, power is transmitted to the upper roll shaft, the transmission mode ensures that the upper roll shaft and the lower roll shaft can still rotate relatively after the distance is adjusted, the stability of power transmission is ensured, the pressing effect is improved, and the production quality is ensured.

The utility model relates to the technical field of hoists, in particular to a chain guide structure of a chain hoist, which comprises a chain guide plate, a right wall plate and an outer wall plate are sequentially arranged on one side of the chain guide plate, a left wall plate and a ratchet wheel housing are sequentially arranged on the other side of the chain guide plate, and a through hoisting chain wheel hole is formed in the middle of the chain guide plate. A left chain guide groove and a right chain guide groove are formed in the two sides, close to the right wall plate, of the lifting chain wheel hole respectively, a baffle position groove is formed in the lower portion, close to the right wall plate, of the lifting chain wheel hole, a lifting chain wheel is arranged on the inner side of the lifting chain wheel hole, and the outer side of the lifting chain wheel is sleeved with a lifting chain. The guide chain plate is of a novel guide chain structure, is different from single guide structures such as a lifting chain wheel and a guide chain plate in the prior art, has the advantages of being good in material sealing performance and excellent in guiding performance, and has the advantages of being high in strength, light in weight, dustproof, safe, smooth and reliable in guiding, good in sealing performance, safe, dustproof and the like.

The invention discloses a hot-rolled plate sawing device, and relates to the technical field of hot-rolled plates. The device comprises a machine table, a cutting mechanism, a trolley and a ground rail, a lower tool apron is fixed to the edge of the rear side of the top of the machine table, a plurality of supporting rollers are linearly fixed to the front side of the top of the machine table, and a portal frame plate is fixed to the top of the machine table; a plurality of pressing rollers are fixed to the front side of the bottom of the lifting base through an elastic telescopic frame, the machine table is fixed to the top of the trolley, the rear side of the trolley exceeds the rear side of the machine table and forms an extension table, and a roller frame is fixed to the top of the extension table through a lifting device. The saw cutting device capable of horizontally moving is designed and can integrally move along with conveying of the plate, so that conveying and cutting-off are achieved at the same time, shutdown operation is not needed, the working efficiency is improved, and meanwhile the service life of each driving part is prolonged.

The invention relates to the field of tool welding equipment, in particular to a positioning device applied to casting part welding, which is characterized in that a first positioning mechanism, a second positioning mechanism and a third positioning mechanism are respectively used for positioning the front end, the middle end and the tail end of a tool; a balance supporting plate is additionally arranged on the side, located on the third positioning mechanism, of the bottom plate, the tail end of the tool is clamped and positioned through the balance supporting plate and the third positioning mechanism, the bottom of the balance supporting plate is fixed to the bottom plate, and a first adjusting block and a second adjusting block are installed on the left side and the right side of the top of the balance supporting plate correspondingly. The first adjusting block and the second adjusting block are supported at the bottom of the tool, and the first adjusting block, the second adjusting block and the third positioning mechanism are used for clamping and positioning the tail end of the tool; the first adjusting block and the second adjusting block are both movably installed on the top of the balance supporting plate. The tool positioning device aims at avoiding the phenomenon that a tool is excessively positioned, and the forming quality of the tool can be guaranteed.

The utility model discloses a self-sealing civil defense gate valve in the field of civil defense gate valves, which comprises a valve body, a gate and a hand wheel mechanism used for driving the gate to open or close, the valve body comprises a valve casing, a front pipeline and a rear pipeline, and a channel for the gate to move is arranged in the valve casing. The front pipeline and the rear pipeline are oppositely arranged at the bottom of the valve shell and communicate with the channel, connecting flanges are arranged at the outward ends of the front pipeline and the rear pipeline correspondingly, annular bosses are arranged at the inward ends of the front pipeline and the rear pipeline correspondingly, stepped grooves are formed in the end faces of the annular bosses, and the two oppositely-arranged stepped grooves form a first sealing groove capable of containing the edge of the inserting plate. An annular groove is formed in the side, facing the inserting plate, of the annular boss, an I-shaped sealing gasket is arranged in the annular groove, the top of the inserting plate is fixedly connected with the hand wheel mechanism and detachably connected with the valve shell through a sealing seat, and a second sealing groove is formed in the position, corresponding to the sealing seat, of the top of the valve shell. The pressure-resistant shock-wave-resistant valve has good pressure-resistant capacity and shock-wave-resistant capacity.

The utility model relates to the technical field of cable laying, and provides an improved cable laying device which comprises a main pipe and a connecting pipe movably connected to the outer surface of the main pipe, a connecting structure is arranged in the connecting position between the connecting pipe and the main pipe, and fire-retardant structures are arranged in the connecting pipe and the main pipe; the connecting structure comprises a connecting piece fixedly connected to the outer surface of the main pipe, the outer side surface of the connecting piece is fixedly connected with a convex ring, the outer surface of the main pipe is fixedly connected with a guide pipe, and the lower end of the guide pipe is fixedly connected with an inclined part; one end of the main pipe is movably connected with an end plug, and the fire retardant structures are separately distributed in the connecting pipe and the main pipe at intervals; the fire retardant structure comprises an outer shell fixedly connected to the outer surface of the inner wall of the main pipe. According to the technical scheme, the problems that in the laying process of an existing cable, connection between the existing cable and a bent pipeline is not tight enough, the bending angle of a line at a corner is large, no protection measure exists, and short circuit or fire breaks out easily when a fault occurs are solved.