6results about How to "Avoid floating phenomenon" patented technology

The utility model discloses a high-coaxiality wire profile rolling die with an anti-floating effect, which belongs to the technical field of metal processing and die manufacturing, and comprises an upper die, a lower die is arranged at the bottom of the upper die, a shunting assembly is arranged between the upper die and the lower die, and the shunting assembly comprises a first material injection pipe, a second material injection pipe and a third material injection pipe, the first material injection pipe is embedded into the inner side of the top of the upper mold, the top of the first material injection pipe is fixedly connected with a flow dividing pipe, the outer wall of the flow dividing pipe is fixedly connected with a first guide-in pipe and a second guide-in pipe, and the interiors of the first guide-in pipe and the second guide-in pipe are both communicated with first valves; and the interior of the first material injection pipe is communicated with a second valve. By means of the arranged flow dividing assembly, multiple wires with different diameters can be machined and formed through the mold, the axis position of the injection channel of the upper mold is consistent with that of the injection channel of the lower mold, it is guaranteed that the overall axis position of the formed wires is consistent, and the bending phenomenon is avoided.

The invention relates to the technical field of sewage treatment, and particularly discloses an anaerobic ammonia oxidation granular sludge loss prevention device in a sewage treatment reactor, the anaerobic ammonia oxidation granular sludge loss prevention device comprises a reactor body and a three-phase separator, a granular sludge interception device is arranged between the reactor body and the three-phase separator, and the granular sludge interception device comprises a middle cylinder; a center block is fixedly arranged at the center of the middle barrel, sealing bearings are evenly arranged on the circumferential face of the middle barrel, positioning holes aligned with the sealing bearings in the radial direction are formed in the outer circumferential face of the center block, a rotating shaft is rotationally arranged between each sealing bearing and the corresponding positioning hole, and a fan-shaped hole plate is arranged on each rotating shaft. The fan-shaped pore plates are arranged in a mirror symmetry manner by taking the rotating shaft as a center line; the device for preventing the loss of the anaerobic ammonia oxidation granular sludge in the sewage treatment reactor disclosed by the invention can effectively avoid the loss of the granular sludge in the anaerobic ammonia oxidation wastewater treatment process, and ensures the efficient and stable operation of the reactor.

The utility model discloses a duck egg cleaning machine which comprises a cleaning box, a first fixing rod is fixedly arranged on the cleaning box, a first rotating groove is formed in the first fixing rod, a first screw rod is arranged in the first rotating groove in a rotating mode, and a power mechanism connected with the first screw rod is arranged on the first fixing rod. A first lifting frame is installed on the first screw rod in a threaded and sleeving mode, a lifting net frame is fixedly arranged on the first lifting frame, a second fixing rod is fixedly arranged on the lifting net frame, a second rotating groove and a transmission chamber are formed in the second fixing rod, and a second screw rod extending into the transmission chamber is rotationally arranged in the second rotating groove; the second screw rod is sleeved with a second lifting frame in a threaded mode, and the second lifting frame is sleeved with a lifting net plate in a threaded mode. According to the cleaning machine, through the unique lifting and transmission mechanism design, integration of soaking, cleaning and draining of duck eggs is achieved, the automation degree is high, manual operation is reduced, and the cleaning efficiency is improved.

The utility model relates to the field of fine crystal bar machining auxiliary devices, in particular to a diameter fine crystal bar machining auxiliary tool. Comprising a placing plate, a plurality of rolling wheels are installed on the lower surface of the placing plate, a fixing plate is installed on the upper surface of the placing plate, a moving device is installed on one side of the fixing plate, a handle is fixedly connected to the other side of the fixing plate, an adjusting structure is arranged on the inner wall of the placing plate, and the adjusting structure comprises an auxiliary plate. The auxiliary plate is slidably connected with the placing plate, a plurality of connecting holes are formed in the two sides of the auxiliary plate, the two sides of the placing plate are fixedly connected with two positioning plates, and the inner walls of the two positioning plates are rotatably connected with the same screw rod. According to the auxiliary tool for machining the diameter fine crystal bar, the area of the placing plate can be increased, so that the fine crystal bar is more stable in the placing process, the fine crystal bar is prevented from being suspended, and the safety of the fine crystal bar is further improved.

A reservoir riverbed reinforced concrete cast-in-place pile is used steel reinforcement cage and hoisting device, including steel reinforcement framework, steel reinforcement framework bottom is fixedly connected with the tray through multiple extension bars, and the tray is formed with the concrete receiving area between the steel reinforcement framework bottom, a plurality of internal thread sleeves are fixedly connected on the steel reinforcement framework top, and the internal thread sleeves can be connected with the hoisting device through the lead screw. The utility model discloses avoid in the concrete pouring process, the steel reinforcement cage floats up, improves the construction efficiency, and reduces the construction cost.

This invention discloses a controllable negative pressure grouting test device, comprising a grouting model assembly, which includes a grouting bucket, a fixing unit, a first limiting unit, and a sealing unit; a filtering unit located at the lower part of the inner cavity of the grouting bucket; a second limiting unit located at the upper part of the inner cavity of the grouting bucket to limit the height of the sample inside the grouting bucket and prevent the sample from floating; a fastening unit located on the outer circumference of the grouting bucket to provide circumferential constraint; a negative pressure component connected to the upper end of the grouting model assembly to generate negative pressure and expel air from the grouting model assembly; and a grout delivery component connected to the lower end of the grouting model assembly to allow grout to flow into the grouting bucket when the negative pressure component generates negative pressure. This invention features a simple device, easy operation, strong anti-interference capability, and can effectively improve work efficiency and ensure the accuracy of the test.