39results about How to "Easy jacking" patented technology

The invention relates to a high-coaxiality composite insulator injection mold which comprises an upper die and a lower die, wherein a sprue and a runner are arranged in the injection mold, the two dies are assembled so as to form an injection mold cavity, the top of the upper die is provided with a feed hole, the center of the injection mold cavity is provided with a mandril accommodating cavity, the mandril accommodating cavity is cylindrical, the circumferential outside of the mandril accommodating cavity at the position of the sprue is also provided with multiple thimbles, each thimble points to the shaft center of the mandril accommodating cavity, and the thimbles are annularly and uniformly distributed around a mandril by taking the shaft center of the mandril accommodating cavity as a circle center, and staggered with the sprue; and each thimble is composed of a slide block, an ejector rob and a guide seat, one end of the guide seat is fixedly connected with a drive cylinder, the other end of the guide seat is connected with the slide block, the guide seat fits with the slide block, the slide block can move forwards and backwards along the guide seat, and the other end of the slide block is fixedly connected with the ejector rob. The injection mold disclosed by the invention has the advantages that by using the mold, in the process of injecting, the mandril is not deformed due to the impact of plastics, so that the axial line of the mandril is always located at the central position of the mold cavity, thereby ensuring the high coaxiality of the mandril and the center of the mold cavity, and guaranteeing the quality of products.

Hydraulic equipment for removing and installing bucket tooth pins, including motors, power switches, oil drums, bidirectional gear pumps, housings, oil cylinders, oiling pots, high-pressure oil pipes, overflow valves, and oil circuit integrated distribution blocks; the oiling pots are installed in the oil The upper end of the barrel; one side of the oil circuit integrated distribution block is installed on one side of the oil barrel, and the motor is installed on the other side of the oil circuit integrated distribution block; the bidirectional gear pump is installed on one side of the oil circuit integrated distribution block, and the power input of the bidirectional gear pump The shaft and the power output shaft of the motor are installed together; the oil drum and the oil cylinder are installed together; the relief valve is installed on the oil circuit integrated distribution block; the lower oil pipe of the oil cylinder and the lower inlet and outlet pipes of the oil circuit integrated distribution block are installed together through the oil pipe; The housing is mounted on the outside of the motor, and the power switch is mounted on the housing. The invention is compact in structure and convenient to use. Only by controlling the power switch, the piston of the oil cylinder can move forward to push out or push the bucket tooth pin shaft, and move backward to return to the initial state, thereby improving the efficiency of disassembling and installing bucket teeth.

The invention relates to the technical field of municipal construction, in particular to a construction method of a municipal rain sewage diversion pipeline. The construction method comprises the following steps of S1, excavating a working foundation pit; S2, installing power equipment; S3, installing pipe jacking equipment; S4, dismantling a guide tube; and S5, pipe jacking. A lubricant comprisesthe following components in parts by weight of 30-40 parts of sodium stearate; 20-25 parts of acrylic emulsion; 15-25 parts of packing; 15-20 parts of water; 3-6 parts of N, N-dimethyl ethanolamine;1-2 parts of hydroxyethyl cellulose and 0.5-1 part of 1,2-propylene glycol. The construction method has the effect of enabling the rain sewage diversion pipeline to be pushed into soil more easily.

The invention discloses a cutting and forming device comprising a chassis and a frame plate arranged on the chassis. The front and rear end faces of the chassis are fixedly provided with fixed plates in which fixing holes are formed, and the chassis is also provided with a sliding chute at the left side of the frame plate; the sliding chute is internally provided with a sliding carrier capable of sliding right and left, and the top of the sliding carrier is provided with an upper groove in which a top disc is slidably arranged; and the right end of the top disc is fixedly connected to the frame plate. The cutting and forming device has the advantages of simple structure, low production cost and easy operation, and the cutting efficiency of plates is improved greatly; the waste of human resources is reduced, and the cutting efficiency is good; and the cutting accuracy is high, and the requirements of the modern manufacturing are met.

The invention provided an overlapped keel mounting method. The overlapped keel comprises a block mounted hanging hook (2), a key keel (1) and a false keel (3); the mounting method is: firstly mounting the hanging hook at the decorated top surface, then clamping the wedge-shaped hook (1c) at the top of key keel into a U-shaped clip from bottom to be hung on a barb, and finally inserting an upper hanging lug (3a) on the upper wallboard of the rider keel into an upper supporting lug (2e) at the lower part of the footboard of the hanging hook, and inserting a lower hanging lug (3a') on the lower wallboard of the rider keel into a lower supporting lug (1d) at the lower part of the hanging steel bar of the key keel or at the back of a supporting board. The method is easy in mounting, maintenance, and replacing, steady in mounting and good in decorative effect.

The invention discloses a sealing mounting structure of a tunnel pipeline and a mounting method of the tunnel pipeline. The mounting structure comprises a working well, the tunnel pipeline, mounting groove bodies and annular bag bodies, wherein holes are formed in the wall of the working well; the tunnel pipeline is inserted into a soil layer through the holes; the mounting groove bodies are detachably mounted on the wall of the working well, and the sidewalls of the mounting groove bodies are clung to the wall of the working well; the mounting groove bodies which are provided with annular grooves sleeve the tunnel pipeline; the annular bag bodies are mounted in the corresponding annular grooves and sleeve the tunnel pipeline; the annular bag bodies are propped against the bottom parts of the corresponding annular grooves and the sidewall of the tunnel pipeline. According to the mounting structure, the error allowance value of the opening size of the holes in the wall of the working well can be extended, thus the radial deviation of the tunnel pipeline in the propping-in process can be reduced, and the abrasion between the holes and other mounting assemblies can be avoided; in addition, the sealing effect is realized in the mounting process of the tunnel pipeline, so that the loss of the drag reducing mud which is poured in the propping-in construction of the tunnel pipeline can be prevented; a complete and effective mud sleeve can be formed, and thus the lubricating can be performed to achieve drag reducing, and the holes can be prevented from water.