45results about How to "Easy loading and unloading maintenance" patented technology

The invention relates to a ball valve, especially the ball valve with the split valve core. The valve body is equipped with the removable valve cover. The valve core installed in the valve body consists of two seal hemispheres and the wedge-shaped ball core installed between the seal hemispheres. The relative position between the seal hemispheres and the wedge-shaped ball core is determined by theanti-rotation guiding device. The top of the wedge-shaped valve core has the anti-rotation device and the thrust block is installed between the valve cover and the wedge-shaped ball core. The elasticunit is installed between the bottom of wedge-shaped ball core and the valve seat. The ball valve features easy switch; small ball valve wear, long service life; convenient installation and maintenance, etc., which can be applied to a wide range of area.

The invention discloses a fall-proof U-shaped foot pin for an iron tower and a use method thereof. The fall-proof U-shaped foot pin for the iron tower comprises a U-shape foot pin and a limiting plate, wherein the U-shape foot pin is arranged on a steel frame of the iron tower, end 1 of an open end of the U-shaped foot pin is fixedly connected with the steel frame, end 2 of the open end of the U-shaped foot pin is connected with the lower portion of the limiting plate, the two ends of the open end of the U-shaped foot pin are vertically arranged, the upper portion of the limiting plate passes through the end 1, and fixedly connected with the steel frame together with the end 1 in close mode, and a limiting groove clamped on the steel frame is formed in the back side of the lower portion of the limiting plate. By using the U-shaped foot pin and the limiting plate, the fall-proof U-shaped foot pin for the iron tower can be conveniently and quickly installed on the steel frame, saves a process of manufacturing holes in the steel frame, and is convenient to assemble and unassembled and maintain. Especially for remolding of a traditional reinforcing steel bar foot pin, an existing installation through hole is used, and then the limiting plate and the U-shaped foot pin can be conveniently and quickly installed on the steel frame of the iron tower, remolding is easy, shinning safety of the traditional iron tower and reliability of the foot pin are greatly improved, remolding cost is low, and the fall-proof U-shaped foot pin for the iron tower further has the advantages of being simple in structure and low in cost.

The invention discloses an automatic liquid flow rate stabilizer based on jet cavitation. The device comprises a feed pipe, a suction chamber, a stop collar, decompression rings, a nozzle and a cavitation cavity. The device firstly divides a flow from upstream into two parts, wherein one part is sprayed into the cavitation cavity after being accelerated and decompressed via the nozzle, while the other part also flows into the cavitation cavity after being decompressed by the decompression rings connected in series. The two flows are converged again in a shrinkable pipe in the cavitation cavity, the two flows generate a vortex and then generates a relatively large cavitation to cause cavitation inception, then violent cavitation clouds are rapidly formed in a choke to congest the whole choke, and gradually collapsed after being continuously developed to a diffusion pipe; the choke is full of the cavitation clouds, so that fluctuation of outlet pressure cannot be transmitted to the upstream of the choke, and thus a pressure difference between the feed pipe and the shrinkable pipe is always constant, and flow rate stability is achieved. The device provided by the invention is extremely rapid in response speed, invention high in flow rate stability, simple in structure, high in maintainability, strong in adaptation capacity to medium, and capable of being used in large scale.

The invention discloses a continuous flipping vibration device of a screening barrel. The continuous flipping vibration device comprises a semicircular lug boss and a crescent adjustable falling force hammer, wherein the lug boss is fixedly connected onto the external column surface of the screening barrel, and an arc-shaped direction of the lug boss is the same as the peripheral direction of the screening barrel; the middle of the adjustable falling force hammer is fixedly connected onto a rotary shaft above the screening barrel and is bent downwards; two ends of the rotary shaft are connected onto two brackets in a rotatable manner, and the axis of the rotary shaft is parallel to the axis of the screening barrel; the two brackets are fixedly connected onto main frames on the two horizontal sides of the screening barrel; after the screening barrel rotates, the lug boss can touch a hammer head of the adjustable falling force hammer; and after the adjustable falling force hammer rotates, a hammer tail can touch the screening barrel. By utilizing continuous flipping of the semicircular lug boss and the crescent adjustable falling force hammer, automatic beating is realized; manual operation is reduced and more time and labor are saved; the efficiency is high and a screen mesh is not damaged; and the vibration effect is good, the cleaning effect is better and more energy is saved.

The invention discloses a wheel type range finder which comprises a range finder body. The range finder body comprises a wheel carrier and a measurement wheel. The wheel carrier is connected with a guide wheel through a guide frame. A guide groove matched with a guide rail is formed in the wheel face of the guide wheel. The guide wheel is installed in front of the measurement wheel. The guide wheel with a positioning groove is installed on the wheel type range finder and conducts guiding in front of the measurement wheel, the guiding performance is good, it is avoided that the measurement wheel on the rail is likely to fall off the face of the rail, and the measurement precision is greatly improved. The range finder is placed on the face of the rail and can be pushed forwards at a high or low speed, more time and labor are saved for operators, the measurement efficiency is improved, the problems that in the prior art, measurement is not precise, operation is not convenient and time and labor are wasted are effectively solved, and the wheel type range finder has the advantages of being simple in structure, convenient to operate, use, assemble, disassemble and maintain, and low in price.