Abstract: A nursing bed, comprising: a back plate portion (1), a seat plate portion (2), a seat leg plate portion (3), a leg plate portion (4) and a foot plate portion (6), which are hinged in sequence, a bed body bracket (7), which configures the back plate portion (1), the seat plate portion (2) and the seat leg plate portion (3), the seat plate portion (2) being fixedly connected to the bed body bracket (7); a rotating shaft (10), which is arranged on the bed body bracket (7) and which is arranged at a lower side of the seat leg plate portion (3); a connecting rod (11) wherein an end is pivotably connected to the rotating shaft (10) while another end is movably connected to a lower surface of the foot plate portion (6).

Abstract: An indwelling evacuator for feces, a stranding cage is disposed in a cylindrical main body, and a soft shaft is connected to the rear end of the stranding cage. Petaloid movable blades are hingedly connected to the front end of the cylindrical main body, and are in the shape of a bud when the petaloid movable blades are closed. A blocking ring is disposed on the outer wall of the cylindrical main body. A sliding ring member is disposed in the cylindrical main body to push the movable blades open to form an open space in the shape of a flower. The rear portion of the cylindrical main body is downward connected to a feces discharge hose. In use, the bud portion in the front end is inserted into the anus, and the blocking ring limits the insertion depth.

Abstract: A trenchless rehabilitation device for disconnects on large-diameter concrete drainage pipe and method thereof is provided; which includes: a pipe CCTV, a water blocking device, a lining repairing permanent structure, and a grouting device. The pipe CCTV is configured to determine the location of the pipe disconnection; the water blocking device is configured to form the working space; then the rubber seal lining short tube and multiple expanded round fixed steel plates are configured to form the inner repair permanent structure, and the grouting equipment is configured to insert the expanded round fixed steel plates. The grouting holes are configured to polymer grouting on the periphery of the pipe disconnection and the soil void. The trenchless repair process provided by the present invention can form a composite pipeline disjointed repair structure of inner repair permanent structure and polymer grouting material.

Abstract: The application provides a system comprising a water blocking device, a support structure, an injection machine, a resin impregnated lining hose and a light curing machine. The water blocking device blocks water and creates space for repairing. The support structure jacks up the deformation of pipelines. The injection machine injects polymer into the gap between the support structure and the HDPE pipes and the defective soil. A resin impregnated lining hose is inflated to attach to the support structure before being cured by UV lights. A CIPP (Cured-in-place pipe) liner is formed. The application carries out the trenchless rehabilitation of deformation of HDPE pipelines by integrating the method of the lining steel ring supporting, polymer injection and CIPP process. The defective soils are stabilized and further defects after repairing is avoided. The application is advantageous to the trenchless rehabilitation for double wall corrugated pipeline (diameter over 800 mm).

Abstract: The application provides a system comprising a water blocking device, a support structure, an injection machine, a resin impregnated lining hose and a light curing machine. The water blocking device blocks water and creates space for repairing. The support structure jacks up the deformation of pipelines. The injection machine injects polymer into the gap between the support structure and the HDPE pipes and the defective soil. A resin impregnated lining hose is inflated to attach to the support structure before being cured by UV lights. A CIPP (Cured-in-place pipe) liner is formed. The application carries out the trenchless rehabilitation of deformation of HDPE pipelines by integrating the method of the lining steel ring supporting, polymer injection and CIPP process. The defective soils are stabilized and further defects after repairing is avoided. The application is advantageous to the trenchless rehabilitation for double wall corrugated pipeline (diameter over 800 mm).

Abstract: A in-service trenchless repair method for disconnection of a drainage pipe includes steps of: detecting the disconnection by a pipe sonar, and making a traction rope; pulling a hollowed cylindrical airbag to the disconnection according to the mark on the traction rope; controlling an airbag valve by an air compressor on the ground to inflate the hollowed cylindrical airbag, so that the hollowed cylindrical airbag is in close contact with pipeline wall after inflation; drilling a grouting hole on the ground surface directly above and on both sides of the disconnection until reaching the disconnection, and inserting a grouting pipe into the grouting hole; then injecting a double-slurry quick-curing repair material into the disconnection through a grouting system on the ground and waiting for curing; deflating the hollowed cylindrical airbag and pulling out by the traction rope.

Abstract: Provided is a semiconductor laser diode. Although the materials used in the conventional technology can reduce the strain, the selections of materials are relatively limited and the carrier confinement ability is not good. To solve the above-mentioned problems, a phosphorus-containing semiconductor layer is provided in a laser diode. As such, it can effectively reduce the strain of the active region or the total strain of the laser diode, and improve the carrier confinement capability of the active region. Therefore, it can effectively reduce the total strain or significantly improve carrier confinement under appropriate conditions of the laser diode. In some cases, it has the aforesaid effects. The phosphorus-containing semiconductor layer is suitable for an active region with one or more active layers. Especially after the phosphorus-containing semiconductor layer is provided in the active region with multiple active layers, high temperature performance are significantly improved or enhanced.

Abstract: A care bed includes a bed body provided with a groove and a wheelchair disposed in the groove. The wheelchair includes: a wheelchair support sequentially provided with a wheelchair back plate, a seat plate, a leg plate and a foot plate, and the seat plate is fixed to the wheelchair support; a double-traction lifting regulator disposed below a connection position between the wheelchair back plate and the seat plate; a locking member disposed on the double-traction lifting regulator; a first traction member connected to the locking member; and a second traction member connected to the locking member. When the wheelchair is combined with the bed body, the second traction member controls the locking member to be loosened; and when the wheelchair is separated from the bed body, the second traction member controls the locking member to be locked.

Abstract: A local sealing structure for cracks on a drainage pipe, includes: a first repair material, a second repair material, a cover layer, a reinforcement body and a joint filler; wherein: the joint filler is configured to fill and seal cracks on a pipeline; the reinforcement body is configured to reinforce soil outside the pipeline; the first repair material is configured to seal the cracks; the second repair material is configured to adhere a surface of the first repair material; and the cover layer is configured to seal a surface of the second repair material; wherein a joint offset distance between the first repair material and the second repair material is greater than or equal to a third predetermined distance. A local repair method for cracking of a large-diameter concrete drainage pipe is further provided.

Abstract: A trenchless rehabilitation device for disconnects on large-diameter concrete drainage pipe and method thereof is provided; which includes: a pipe CCTV, a water blocking device, a lining repairing permanent structure, and a grouting device. The pipe CCTV is configured to determine the location of the pipe disconnection; the water blocking device is configured to form the working space; then the rubber seal lining short tube and multiple expanded round fixed steel plates are configured to form the inner repair permanent structure, and the grouting equipment is configured to insert the expanded round fixed steel plates. The grouting holes are configured to polymer grouting on the periphery of the pipe disconnection and the soil void. The trenchless repair process provided by the present invention can form a composite pipeline disjointed repair structure of inner repair permanent structure and polymer grouting material.

Abstract: A method for detecting and repairing external diseases of a buried drainage pipeline includes steps of: S1, controlling a robot to enter the pipeline to perform comprehensive detection of pipeline diseases; S2, analyzing detected pipeline diseases with a computer terminal based on detection results of the robot, and determining locations of external diseases of the pipeline; S3, controlling the robot to detect a depth of the external diseases of the pipeline relative to a ground surface; S4, determining a projection position of the external diseases of the pipeline on the ground surface according to detection results of the step S2, and drilling a hole from the ground surface; determining a drilling depth according to detection results of the step S3, and inserting a grouting pipe; and S5, grouting and repairing the external diseases of the pipeline through the grouting pipe.

Abstract: A support tool for leakage repair of an inspection well includes: a curved loading plate having multiple grouting holes thereon, a telescopic adjustment device, and a base; wherein: one end of the telescopic adjustment device is connected to an inner side face of the curved loading plate, and the other end of the telescopic adjustment device is connected to the base; the telescopic adjustment device adjusts a distance between the curved loading plate and the base. The support tool is firstly hoisted at a leakage position of the inspection well; then a telescopic length of the telescopic adjustment device is adjusted, so that the curved loading plate and the base are in a close contact with opposite sides of the inspection well wall; and a grouting system is used to inject a double-slurry quick-setting repair material into a grouting pipe on the curved loading plate for plugging leakage.

Abstract: Trenchless methods for forming a curved hole channel with a steel sleeve and pipeline lifting are provided, including steps of: (T1) drilling a straight hole channel, and inserting the steel sleeve into the straight hole channel; (T2) inserting a guiding pipe into the steel sleeve, and determining a bending direction of a hole channel to be formed; and (T3) inserting a flexible steel-wire pipe into the guiding pipe, and punching to form the curved hole channel. With applying the creative trenchless method for forming the curved hole channel, a specially-made grouting pipe is accurately inserted to a bottom of a subsiding pipeline section, so that a polymer material is conveniently injected to a bottom of a disease position. Though utilizing an expansion force generated by the polymer material, the subsiding pipeline section is uplifted, so as to realize trenchless repairing.

Abstract: A in-service trenchless repair method for disconnection of a drainage pipe includes steps of: detecting the disconnection by a pipe sonar, and making a traction rope; pulling a hollowed cylindrical airbag to the disconnection according to the mark on the traction rope; controlling an airbag valve by an air compressor on the ground to inflate the hollowed cylindrical airbag, so that the hollowed cylindrical airbag is in close contact with pipeline wall after inflation; drilling a grouting hole on the ground surface directly above and on both sides of the disconnection until reaching the disconnection, and inserting a grouting pipe into the grouting hole; then injecting a double-slurry quick-curing repair material into the disconnection through a grouting system on the ground and waiting for curing; deflating the hollowed cylindrical airbag and pulling out by the traction rope.

Abstract: A trenchless integrative repair method includes steps of: S1, pre-casting steel rings according to an internal diameter of a diseased pipeline, and forming grouting holes in the steel rings; S2, loading the steel rings to a diseased position inside the pipeline, and fitting the steel rings to an internal wall of the pipeline to form reinforcing rings; S3, selecting a number of the grouting holes according to subsidence distribution; drilling a hole in the pipeline to reach a subsidence position and inserting a grouting pipe; steadily grouting the subsidence position with a polymer grouting system, and observing a lift condition of the pipeline; removing the grouting pipe after the pipeline is lifted to a predetermined level; and S4, pulling a lining pipe into the pipeline, and fitting the lining pipe to the steel rings and pipeline walls adjacent to the steel rings; curing the lining pipe.

Abstract: A care bed includes a bed body provided with a groove and a wheelchair disposed in the groove. The wheelchair includes: a wheelchair support sequentially provided with a wheelchair back plate, a seat plate, a leg plate and a foot plate, and the seat plate is fixed to the wheelchair support; a double-traction lifting regulator disposed below a connection position between the wheelchair back plate and the seat plate; a locking member disposed on the double-traction lifting regulator; a first traction member connected to the locking member; and a second traction member connected to the locking member. When the wheelchair is combined with the bed body, the second traction member controls the locking member to be loosened; and when the wheelchair is separated from the bed body, the second traction member controls the locking member to be locked.

Abstract: A nursing bed, comprising: a back plate portion (1), a seat plate portion (2), a seat leg plate portion (3), a leg plate portion (4) and a foot plate portion (6), which are hinged in sequence, a bed body bracket (7), which configures the back plate portion (1), the seat plate portion (2) and the seat leg plate portion (3), the seat plate portion (2) being fixedly connected to the bed body bracket (7); a rotating shaft (10), which is arranged on the bed body bracket (7) and which is arranged at a lower side of the seat leg plate portion (3); a connecting rod (11) wherein an end is pivotably connected to the rotating shaft (10) while another end is movably connected to a lower surface of the foot plate portion (6).

Abstract: A fertility restoration gene in wheat and uses thereof, belonging to the field of plant biotechnology, specifically relating to the cloning of a recessive nuclear male sterility gene and a promoter thereof, and uses thereof in hybrid breeding. The fertility restoration gene FRG1 was successfully cloned by flow cytometry and high-throughput sequencing. The FRG1 gene can completely restore the male fertility of a Lanzhou genic male sterile mutant or allelic mutants thereof, which lays a foundation for the construction of a new wheat hybrid breeding technology system, meanwhile, which provides more possibilities to solve the technical bottlenecks of “three lines” and “two lines” hybridization technology of wheat, such as unstable fertility of sterile lines, limited resources for hybrid variety, the complexity of seed production technology and the high cost of seed production.

Abstract: A charging pile, a method and device for recognizing the charging pile are provided. The charging pile may include: a pile body having a side surface; a power interface provided on the side surface of the pile body to supply power for the autonomous cleaning device; an identification structure arranged on the side surface of the pile body to enable the autonomous cleaning device to recognize a position of the power interface and comprising a plurality of identification elements, each of the plurality of identification elements comprising at least one convex and at least one concave; wherein a retroreflection coefficient of any one of the at least one convex and the at least one concave is smaller than that of the other one of the at least one convex and the at least one concave and sufficient to form a retroreflected light recognizable by the autonomous cleaning device; and wherein at least one of the plurality of identification elements comprises a convex and a concave having mismatched specifications.

Abstract: An indwelling evacuator for feces, a stranding cage is disposed in a cylindrical main body, and a soft shaft is connected to the rear end of the stranding cage. Petaloid movable blades are hingedly connected to the front end of the cylindrical main body, and are in the shape of a bud when the petaloid movable blades are closed. A blocking ring is disposed on the outer wall of the cylindrical main body. A sliding ring member is disposed in the cylindrical main body to push the movable blades open to form an open space in the shape of a flower. The rear portion of the cylindrical main body is downward connected to a feces discharge hose. In use, the bud portion in the front end is inserted into the anus, and the blocking ring limits the insertion depth.