84results about How to "Avoid backflow situations" patented technology

The invention discloses an EGR pipe and an EGR system, and relates to the technical field of engines. The EGR pipe comprises a three-way pipe and a switching valve internally arranged at the pipe intersection position of the three-way pipe, the switching valve comprises a pulling sheet, one end of the pulling sheet is provided with a rotating shaft, the rotating shaft is rotationally arranged at the intersection position of two gas inlet branches, the shape of the pulling sheet is the same as the shape of the cross section of a pipe body of the three-way pipe. According to the EGR pipe, in themanners that the switching valve is arranged at the pipe intersection position of the three-way pipe and the shape of the pulling sheet is the same as the shape of the cross section of the three-waypipe, the switching valve can achieve free rotation through the two waste gas inlet branches, free switching of the switching valve at the positions of the waste gas inlet branches is achieved, and the condition of waste gas backflow of the two waste gas inlet branches is avoided, and the problem that an existing engine exhaust pipe EGR system cannot obtain the high EGR efficiency is solved.

The invention discloses a die-casting machine for industrial processing, which includes a support plate, a first fixed plate is fixedly installed on the left side of the top of the support plate, a first hydraulic tank is fixedly installed on the left side of the first fixed plate, and a first hydraulic tank is fixedly installed on the left side of the first fixed plate. A first hydraulic rod is fixedly installed on the right side of a fixed plate, and a movable formwork is arranged on the right side of the first fixed plate, and the end of the first hydraulic rod far away from the first fixed plate is fixedly connected with the movable formwork, and the right side A moving module is fixedly installed on the surface, and first sliding grooves are provided on both sides of the upper surface of the supporting plate, and the first sliding grooves are slidingly connected with the moving template through the first sliding blocks provided inside. In the present invention, a cooling chamber is provided inside the movable module, which can promote the forming of raw materials in the process of processing, shorten the cooling time, and thus improve work efficiency, and use the hydraulic rod to control the movement of the brake template, which saves labor and facilitates processing. High precision.

The invention discloses an intelligent bathtub with an adjustable cleaning nozzle and an adjusting method thereof, and belongs to the technical field of intelligent bathtubs, the intelligent bathtub comprises a bathtub body, a permeable box is arranged on the left side of the lower surface of the inner wall of the bathtub body, and the upper surface of the permeable box is fixedly connected with the lower surface of a back cushion. The two spraying pipes are adjusted by holding the handle, the two spraying pipes can be driven to move leftwards by pulling the handle, water sprayed by the spraying heads can effectively wash the inner wall of the bathtub body, in the process of pressing the handle downwards, the handle drives the spraying pipes to turn downwards through the strong ribs, the position of the spraying heads is adjusted to be close to the inner side wall of the bathtub body, and water pressure impact force is increased; and secondly, when the spraying head continues to be adjusted, the handle can be held to turn over laterally, as a rotating shaft is sleeved with the bearing, the spraying pipe can turn over laterally to clean the bathtub body in multiple directions, and compared with a traditional mode, the scheme effectively achieves the purpose of cleaning the bathtub body in a multi-direction and synchronous spraying mode, saves water resources and improves the flushing effect at the same time.

The invention belongs to the technical field of building construction, and particularly relates to a foundation pit narrow area backfill compaction device which comprises a mounting plate, an air cylinder is fixedly connected to the outer wall of the bottom of the mounting plate, and a pressing plate is fixedly connected to the outer wall of the bottom of the air cylinder. According to the device, the anti-protrusion assembly is arranged, when the compaction assembly is used for compacting backfill soil, the backfill soil on the outer side of a pressing plate is prone to being extruded and protruding along with extrusion between the pressing plate and the backfill soil, and a third hydraulic cylinder is adjusted to drive a pushing plate to move; according to the backfilled soil compacting device, the pushing plate is arranged on the backfilled soil compacting device, so that the flattening roller below the pushing plate extrudes and flattens the bulged backfilled soil, the situation that the compaction position is hollow due to the bulged backfilled soil is prevented, the backfilled soil compacting effect is further improved, and in the extruding and flattening process of the flattening roller, the protection pieces at the two ends of the roller frame protect the flattening roller; and the condition that the smoothing roller rotates to drive the backfill soil to rise is prevented, and backfill soil backflow is avoided.

The invention discloses a powder coating processing device which comprises a material bin, a first motor, a transmission shaft, a clapboard, a second motor, a packing auger, a screening barrel, a third motor, a rotary shaft and a blower. The powder coating processing device is characterized in that the material bin is arranged on a support frame, the first motor is arranged on the top of the material bin, the transmission shaft is arranged in the material bin, the clapboard is arranged in the material bin, the second motor is arranged on the top of the material bin, the packing auger is arranged between the inner wall of the material bin and the clapboard, the screening barrel is arranged at the bottom in the material bin, and the third motor is arranged at the bottom of the material bin.According to the powder coating processing device, a material falling pipe connected with a feeding bin is arranged on the top in the material bin, on the one hand, the material falling pipe can prevent powder coating from being blown into the feeding bin by a gas flow carried by the packing auger, thus the condition of returning of the powder coating is avoided, on the other hand, the powder coating in the feeding bin can fully fall on a screening board to be ground, processing of the powder coating is convenient, working efficiency is improved, and waste of the powder coating is reduced.

The invention discloses a magnetically-driven high-flow pulsating type blood pump. The blood pump includes a mounting bracket and at least two magnetic push devices installed on the supporting surfaceof the mounting bracket; each magnetic push device includes a driving coil, a dual-pass connector, an inner capsule and a magnetic shielding drum. Every two magnetic push devices are classified intoone group, and each group is provided with a driving assembly; each driving assembly includes a support point, a balance supporting rod, two connecting push rods and two permanent magnet pistons. Every two magnetic push devices are combined into one group and are in linkage with one corresponding driving assembly. Heating can be effectively reduced, the power of the whole blood pump is increased by times, the flow is increased at the same time, the working conditions can be effectively improved, and a great working result can be obtained.

The invention discloses medical patient trousers. The medical patient trousers comprise a trouser body and trouser legs. The trouser body comprises a trouser front part corresponding to the abdomen of the human body, and an opening in the vertical direction is formed in the trouser front part. The trouser legs are connected to the lower edge of the trouser body, wherein the opening stretches to the trouser legs from the upper edge of the trouser body. A zipper is arranged on the opening, and the bottom of the opening is provided with a fixing part for fixing an infusion tube. A containing bag for containing a liquid storage bag is sewn on one trouser leg, and the containing bag is arranged on the thigh of the human body. Supporting belts stretch out from suture lines on the two sides of the containing bag, the supporting belts are elastic fabric, and the containing bag is fixed to the thigh of the human body through the supporting belts. The structure is simple, a peritoneal drainage tube can be led out from the opening of the trouser body and fixed, and the complexity degree of replacing the trousers or the liquid storage bag in the nursing process is reduced. Meanwhile, the liquid storage bag is placed in the containing bag, and convenience is brought for travel of a patient.

The invention discloses energy-saving type sewage treatment equipment and method, and relates to the technical field of sewage treatment, in particular to energy-saving type sewage treatment equipment and method, the energy-saving type sewage treatment equipment comprises an equipment shell, the left side of the equipment shell is connected with a connecting box, the upper surface of the connecting box is provided with a feeding port, and a filter plate is arranged in the connecting box; a flow guide plate is hinged to the side, close to the equipment shell, of the tail end of the connecting box, a driving air cylinder is installed at the upper end of the connecting box, and the output end of the driving air cylinder is connected with a scraping plate. The energy-saving sewage treatment equipment is provided with the driving motor, the driving gear is driven to rotate and meshed with the driven gear to rotate, so that the filter barrel is driven to rotate, and after sewage in the filter barrel is primarily filtered by the filter plate, impurities can be effectively reduced, so that the condition that the filter barrel is blocked is reduced, and the service life of the filter barrel is prolonged. The pressure of the filter vat on sewage treatment is reduced, and the sewage treatment efficiency is improved.

The invention discloses a multifunctional high-end intelligent infusion boom, comprising a hanging ring, a main rod, a first telescopic rod, a second telescopic rod, a hook and a liquid crystal touchscreen. The hanging ring is arranged at the center position of the top end of the whole device. The upper part of the main rod is connected with a hanging ring through a connecting piece, and the lower part is connected with a first telescopic rod. One end of the second telescopic rod is connected with the first telescopic rod, and the other end is connected with a hook. The hook is arranged at the center position of the bottom end of the whole device. The liquid crystal touch screen is arranged on the surface of the main rod. The main rod is also provided with a microprocessor and a power module, a voice module, an alarm module, a WiFi module, an infrared receiving module, a weight sensor and a length regulator connected with the microprocessor. In actual medical treatment, the inventioncan adjust the length, can communicate with the computer to realize data sharing, also has the effect of monitoring the liquid level, and has good market prospect.

The invention belongs to the technical field of polypropylene film production, and particularly relates to a polypropylene bidirectional stretching film production line. The polypropylene bidirectional stretching film production line comprises a sealing cover, an outer cylinder, connecting pipes, a buffering spring and a filtering cylinder; the buffering spring is fixed to the inner bottom of theouter cylinder; the filtering cylinder is fixed to the upper end of the buffering spring; and a material inlet is formed in the upper end of the side of the outer cylinder. According to the polypropylene bidirectional stretching film production line, the sealing cover with a pressing plate is arranged, the pressing plate is descended by pressing a guide rod downwards; the pressing plate presses the filtering cylinder downward; the filtering cylinder is descended; the filtering cylinder is rebounded upwards under the action of the elastic force of the buffering spring, which makes impurities inthe filtering cylinder fall off, and avoid blockage that affects the filtering efficiency; the sealing cover is opened; the filtering cylinder extends out upwards under the action of the elastic force of the buffering spring, which facilitates withdrawing and replacing; the connecting pipes are connected between each of the material inlet and a material outlet of the outer cylinder; and each connecting pipe is in an structure that one end close to the outer cylinder is inclined upward, so that the materials in the material inlet and the material outlet are prevented from refluxing into the filtering cylinder to cause inconvenience in the replacement of the filtering cylinder.