35results about How to "Ensure a solid connection" patented technology

The invention discloses a station crossing device for a shield tunneling machine. The station crossing device comprises a bracket, a piston mechanism and a jacking mechanism; the bracket is used for receiving and bearing the shield tunneling machine and serves as a reaction frame used when the shield tunneling machine starts tunneling, the piston mechanism comprise a piston component connected with the shield tunneling machine and the bracket and is used for horizontal moving between shield tunneling machine and the bracket, and the jacking mechanism comprises a jacking component connected to the shield tunneling machine and is used for jacking the shield tunneling machine and the bracket to be separated from a foundation. By applying the device, self-waling movement of the shield tunneling machine and the bracket is achieved by means of cooperation movement of the piston mechanism and the jacking mechanism, and a roller steel plate structure or a rail transportation structure which can enable the bracket to move does not need to be arranged for the bracket separately; meanwhile, after the shield tunneling machine crosses a station, the bracket directly serves as the reaction starting frame of the shield tunneling machine, the piston mechanism supports the shield tunneling to tunnel forwards, and the reaction starting frame does not need to be installed independently. The device is simple in structure and easy and convenient to operate, the station crossing working difficulty of the shield tunneling station is greatly reduced, the working time is shortened, the construction efficiency is improved, and the cost is reduced.

The invention discloses a middle and small span bridge grouting miniature steel pipe pile, a pile foundation and construction methods thereof. The pile construction method comprises the following steps of geological exploration; fixed-point drilling; hole cleaning; machining and manufacturing of a miniature steel pipe; welding of a centering frame; lowering of the miniature steel pipe and a grouting pipe; secondary hole cleaning; primary grouting; secondary grouting; and obtaining of the grouting miniature steel pipe pile with sealing and flattening. The pile foundation construction method comprises the following steps that the outer surfaces of the side walls of the pile tops are provided with a cushion layer, and group piles are connected into a whole through the cushion layer; and the outer surface of the side wall of the pile top of each pile above the cushion layer is uniformly welded with at least three reinforcing steel bars, and the reinforcing steel bars extend into a bearingplatform at at least 30 times of the diameter of the steel bars to obtain the grouting miniature steel pipe pile foundation. By combining the miniature steel pipe piles with a tunnel pipe shed grouting technology, the construction methods are simple to operate and high in pile forming quality, can solve the problems that surrounding buildings are influenced by pile body damages and static pressuretype pile pressing caused by traditional hammer type pile sinking and the like can be effectively solved and is capable of obviously improving the construction efficiency, reducing pollution and lowering the cost at the same time.

The invention relates to a brickwork structure wall-breaking and hole-forming pre-jacking recovery construction method. The brickwork structure wall-breaking and hole-forming pre-jacking recovery construction method comprises the following steps that 1, holes are cleared and pretreated; 2, new walls are built in the holes; 3, when the distances between the top faces of the built new walls and thetops of the holes reach set values, buried-in-type controllable unloaders are mounted between the top faces of the built new walls and the tops of the holes; 4, gaps between the built new walls and old walls around the holes are grouted for closing; and 5, finally, the closed holes are subjected to formwork removal and curing. According to the brickwork structure wall-breaking and hole-forming pre-jacking recovery construction method, compact connection of the new walls and the old walls at the holes can be ensured, the new walls built at the holes are preloaded by arranging the buried-in-typecontrollable unloaders, the load transmitting paths of the building walls are effectively recovered, the safety and reliability of hole recovery are improved, thus the structural safety of a buildingis ensured, and the potential safety hazard is effectively eliminated.

The invention relates to the technical field of a wall body, in particular to a prefabricated assembled heat insulation wall body. Connecting seam outer sealing mechanisms are arranged in connecting positions of two adjacent wall body support main bodies; the connecting seam outer sealing mechanisms consisting of I-shaped tensioning elements and sealing expansion layers can well realize the sealing treatment on connecting positions of the wall body support main bodies; and the sealing performance is improved. A sealing cavity is sealed in an expansion solidification slurry injection mode, andthe sealing expansion layers are formed. Therefore, the filling onto each gap can be effectively realized; the sealing stability is improved; the stable and firm connection on wall body units can be realized; and the connection reliability of the wall body is ensured. The end part of an outer heat insulation protection assembly is of a step structure, the stable and firm connection on the externalheat insulation protection assembly can be effectively ensured; and the problem that the outer heat insulation protection assembly falls off due to inform bonding of the outer heat insulation protection assembly after the long-time use can be solved.

The invention relates to the technical field of car accessory machining device, and particularly discloses a device for demounting a bearing. The device comprises a working table, the working table isprovided with a first supporting shaft, a clamping mechanism, a second supporting shaft and an air cylinder. The first supporting shaft is fixedly connected with a cylinder body, a first piston is arranged in the cylinder body, an elastic material layer and an air outlet pipe are arranged in the cylinder body, the air outlet pipe is in sealed connection with a U-shaped pipe, and an oil contamination washing agent is contained in the U-shaped pipe; a first piston rod is connected to the first piston, and a stopping block is fixedly connected to the first piston rod; the clamping mechanism comprises a strut, a clamping body, a first clamping piece and a second clamping piece; a second piston is arranged in the air cylinder, and the air cylinder is communicated with the cylinder body throughan air pipe; and a second piston rod is connected to the second piston. By means of the device, the bearing can be stably clamped, bearing stress is even in the bearing demounting process, and bearing damage is avoided.

The invention relates to the technical field of coal economizer structures of pulverized coal furnaces and circulating fluidized beds, in particular to a pipe system hanging device of a coal economizer. It can be guaranteed that coal economizer pipes are stably fixedly connected with an upper header, and the phenomenon of disengaging cannot happen. The pipe system hanging device comprises the upper header. Pipe clamps are arranged at the lower end of the upper header and internally provided with the coal economizer pipes. The pipe system hanging device is characterized in that embedded metal plates are fixedly installed at the bottom of the upper header, matched fixing holes are formed in embedded metal plates and the tops of the pipe clamps respectively, and connecting rods penetrate the fixing holes in a welding manner.

The invention provides a USB wire fully automatic processing machine comprising a USB wire unwinding device, a peeling device, a copper foil wrapping device and a cutting device. The peeling device, the copper foil wrapping device and the cutting device are sequentially arranged along a feeding direction of a USB wire. The copper foil wrapping device comprises a copper foil unwinding device, a support table, a cutting die, a copper foil welding die, a first winding drum, a second winding drum, a reheating device and a copper foil winding device, the copper foil unwinding device and the copperfoil winding device are respectively located at two sides of the support table, and the cutting die, the copper foil welding die, the first winding drum, the second winding drum and the reheating device are sequentially disposed on the support table. The invention also discloses a USB wire processing method. The invention aims to solve the problems of falling and large internal resistance caused by the unstable connection of a copper foil in an existing automatic USB wire processing process.

The invention relates to the field of motors, in particular to a motor shaft. The motor shaft comprises a shaft body (1), an insulating layer (2) covers the outer surface of a bearing mounting portionof the shaft body (1), the portion, covered with the insulating layer (2), of the shaft body (1) is provided with counterbores or through holes and fillets, or a surface obtained through milling flatmachining, and the insulating layer (2) partially or completely fills the counterbores or through holes. By means of the motor shaft, the problems in the prior art that a motor insulation structure is complicated and the cost is high are solved.

The invention discloses a box-type membrane separation device, and relates to the technical field of membrane separation equipment. The box-type membrane separation device comprises a box with an opening in the top; a box cover is arranged at the top of the box in a matching manner; a plurality of supporting plates are arranged up and down inside the box longitudinally side by side; the opposite ends of the supporting plates are fixedly connected to the side surface of the box through connecting plates; a plurality of mounting holes are formed in the surfaces of the supporting plates side by side; membrane assemblies are arranged inside the mounting holes through fixing mechanisms; the tops of the membrane assemblies are connected to a first liquid conveying pipe through connecting pipes;the first liquid conveying pipe is positioned above the box cover; one end of the first liquid conveying pipe is connected to a liquid draining pipe; the bottoms of the membrane assemblies are connected to a second liquid conveying pipe through connecting pipes; the second liquid conveying pipe is positioned below the box; one end of the second liquid conveying pipe is connected with a liquid inlet pipe. Through the arrangement of the membrane assemblies in the box with good sealing performance and coordination with the fixing mechanisms, the service lives of the membrane assemblies are effectively prolonged, and the production cost of a product is reduced; the box-type membrane separation device is suitable for popularization.

The invention discloses a preparation method of an overhead line supporting device. The preparation method comprises the following steps of (1) core material processing, (2) core material splicing and (3) integral forming, wherein in the core material processing, core materials are processed into a flat cantilever (1), an oblique cantilever (2), an arc arm (3) and a connecting arm (4); and in the core material splicing, the core materials are spliced and fixed with connecting parts. The integral forming method of the overhead line supporting device realizes simple and efficient preparation of the supporting device, and meanwhile, the prepared overhead line supporting device is light, high in strength and good in insulating property.

The invention discloses an immersed tube sinking device capable of buffering. The immersed tube sinking device capable of buffering comprises a guide part and a sinking assembly, wherein at least partof the structure of the guide part is used for being inserted into the water bottom; the sinking assembly comprises a connecting frame and a sinking body, the connecting frame comprises a frame bodyand three frame side seats, the frame body comprises a first frame body and a second frame body, the first frame body is connected with a tube main body section, and the second frame body is connectedwith a tube connecting section; the first frame body and the second frame body are provided with telescopic adjusting assemblies, the heights of the first frame body and the second frame body in theextending direction of the guide part are adjustable, two frame side seats in the three frame side seats are connected to the first frame body and the second frame body and are oppositely arranged, and the other frame side seat is connected between the two oppositely arranged frame side seats; an accommodating groove is defined by the three frame side seats, the first frame body and the second frame body, and the sinking body is embedded in the accommodating groove, connected with the guide part and capable of moving in the extending direction of the guide part. According to the technical scheme, the sinking construction precision of an immersed tube is improved.

The invention provides a combined four-way valve. The combined four-way valve comprises a main valve, a guide valve and a fixing structure, wherein the main valve comprises a first valve body and a connecting seat; circulation holes are formed in the first valve body; the connecting seat corresponds to the circulation holes and is used for installing a main valve pipe; the guide valve is arranged on the connecting seat; and the fixing structure is arranged between the guide valve and the connecting seat, and is used for limiting the position of the guide valve on the connecting seat. According to the technical scheme provided by the invention, the problems that in the prior art, the structure is complex, and assembling is not convenient can be solved.

The invention belongs to the technical field of high-altitude operation, and particularly relates to a high-altitude operation safety belt fixing device. When the high-altitude operation safety belt fixing device is used for fixing a safety belt, a safety rope can be driven to pull a winding reel when an operator moves to be static in the descending process, and the safety rope is buffered through the elastic action of an elastic telescopic plate firstly; then, the winding reel starts to rotate, the rotation of the winding reel is hindered through the interaction force of the friction plate and the friction ring, then the safety rope is further buffered, the impact force of the safety rope is relieved, and stable connection between the fixing device and the guardrail is guaranteed; when the safety belt fixing device is used for fixing a safety belt and an operator horizontally moves in a large range, the whole fixing device does not need to be detached from a guardrail, the operator does not need to be transferred to a safety zone, and the operation convenience is greatly improved.

The invention relates to the field of machinery, in particular to a fan power station with a photovoltaic power generation function. A fan power station with a photovoltaic power generation function comprises at least three wind driven generators, each wind driven generator comprises a windmill tower, and each windmill tower comprises a tubular body with a circular cross section; a first installation frame is arranged on the outer side of the tubular body, a first flexible solar cell panel is installed on the inner side of the first installation frame, and the first flexible solar cell panel is attached to the outer surface of the tubular body. By means of the design, the fan power station with the photovoltaic power generation function is provided, through cooperative work of the windmill tower barrel, the first installation frame, the first flexible solar cell panel and other components, it is guaranteed that the first flexible solar cell panel is stably connected with the windmill tower barrel, and the use effect of a wind driven generator is improved; the power generation modes of the fan power station are increased, the utilization rate of the windmill tower drum is improved, and the power generation effect of the fan power station is further improved.