37results about How to "Quick change operation" patented technology

The present invention refers to a fixed pitch type propeller for vessels, fitted with exchangeable blades and having a central core unit that can be coupled to the transmission receiving the movement from the corresponding engine, and a plurality of blades that surround it in an equiangular distribution and are affixed to the central core; said core (1) has a prism-like configuration with as many faces as blades (2), each of its lateral faces having a groove 6 that ends in a narrowed mouth opening, while the inner ends of blades 2 are each topped by a header (4) that can be coupled to one of the lateral faces of the core unit (1) and fitted midway with a rib (7) that is complementary to the groove (6). The invention also provides means for axial immobilization (3-8) of the headers (4) of the blades respective to the core unit (1).

System and method for controlling an instrumented cable (30) towed in water, such as a marine seismic streamer and / or an instrumented towed cable array (streamer array), to which at least one instrumented cable (30), control devices (10, 20) are arranged to control the individual instrumented cables (30) both in shape and position in relation to other instrumented cables (30) and then counteract cross currents and / or other dynamic forces affecting a towed cable array behind a seismic survey vessel (50). The wings (12, 23) of the control devices (10, 20) are provided with acoustic transmitter / receiver means (14) and electronics for acoustic ranging, and the vessel (50) and one or more tail buoys (60) are provided with acoustic transmitter / receiver means (62) and electronics for acoustic ranging, and is provided with instrumentation for absolute position and velocity.

The invention discloses a processing die of a USB data line terminal, which comprises a die upper body and a die lower body matched with the die upper body, wherein a bearing plate is fixed on the upper surface of the die upper body; a glue injection hole is formed in the die upper body; a glue injection gasket is arranged at an opening at the lower end of the glue injection hole; an upper pressing plate is clamped on the lower surface of the die upper body; punching grooves are formed in the upper surface of the lower pressing plate at equal intervals; a contact plate and a material pushing rod matched with the contact plate are arranged at the center of the inner surface of the punching groove; a transmission rod is fixed on the lower surface of the material pushing rod; a spring tube isclamped at the center of the transmission rod; and a pressure sensor is arranged inside the transmission rod. According to the invention, the whole die adopts a spliced detachable structural design,so that the independent parts can be quickly replaced, the operation flexibility of the die is also improved to the maximum degree under the condition of ensuring the safety use of the die, and the die has higher practicability.

The invention discloses an optical fiber jumper testing device, which includes a chassis, the front panel of the chassis is provided with a bending test clamping mechanism that can rotate in the plane where the front panel is located, and the bending test clamping mechanism includes a limit The position body is detachably provided with an adapter installation assembly for installing the adapter. The optical fiber jumper testing device can quickly replace different types of optical fiber jumpers for testing, thereby improving test efficiency.

The invention belongs to the field of a volume pump, and particularly relates to a convenient-to-dismount diaphragm pump with the advantages that the monitoring can be realized in proper time, and a diaphragm leaf can be fast dismounted and replaced on line. The convenient-to-dismount diaphragm pump comprises a pump body and the diaphragm leaf, wherein liquid inlet and outlet holes and hydraulic holes are respectively formed in the pump wall of the pump body, a located pump cavity of the liquid inlet and outlet holes and a located pump cavity of the hydraulic holes are separated through the diaphragm leaf, the pump body also comprises a repair hole, the repair hole is sealed by an end cover, the appearance of the diaphragm leaf is of a sleeve-shaped structure, a pipe opening formed at one end of the diaphragm leaf is fixedly connected with the hole end surface of the hydraulic holes through screw bolts, a pipe opening formed in the other end of the diaphragm leaf extends towards the repair hole and is provided with an outer flange, the outer flange is arranged in a way of being matched with the surfaces between the hole ends, positioned at the outer wall parts of the the pump body, of the repair hole, and the end cover is pressed on the outer flange and is arranged in a way of being fixedly connected with screw bolts arranged between the pump walls of the pump body. The convenient-to-dismount diaphragm pump has the advantages that the monitoring and dismounting problems of the exiting conventional diaphragm pump can be effectively solved, the dismounting convenience and the maintenance replacement efficiency are high, and the work intensity of maintenance personnel can be greatly reduced.

The invention discloses a walk device capable of crossing spacer rods on 220 kV horizontal double split conductors. The walk device comprises two sets of walk wheel assemblies. Each walk wheel assembly comprises a walk front wheel, a walk back wheel and a crossing wheel which can be changeable in positions mutually and are uniformly distributed on the same circumference surface, wherein the walk front wheel and the walk back wheel walk on a wire, and the crossing wheel is arranged above the wire; and when the walk front wheel meets a spacer rod, the crossing wheel crosses to the wire ahead of the spacer rod, and the walk back wheel is turned to the place above the wire to avoid the spacer rod. When not being hindered by the spacer rod, the walk device can walk on the wires quickly and stably through the walk wheels; when walking to the damaged spacer rod, the walk device can replace the spacer rod quickly; and when walking to the undamaged spacer rod, the walk device can walk over the spacer rod automatically and walks on.

The invention provides a door valve device which can still replace a sealing component without providing a handling room to atmosphere. A door valve device (12) which is installed between a handling opening of a treatment chamber (4), and a handling room (6) in open-close and vacuum states comprises a valve body (44) which can be assembled through opening-closing the handling opening; a sealing component (66) which can be installed on the surface of the valve body in a assembly and disassembly way and is hermetically contacted with the assembly surfaces around the handling opening; a sealing component (68) used for maintenance and encircled on the periphery of the sealing component through the regulated interval to the sealing component; an opening (72) used for maintenance; an opening-closing cover (74) used for detachably and hermetically blocking the outer side of the opening used for maintenance and used for maintenance; a valve body driving mechanism (46) which is installed in order to ensure the valve body to be moved between the handling opening and the opening used for maintenance, wherein when the valve body is assembled, and in the state that the sealing component is exposed, the opening (72) used for maintenance becomes the size that the sealing component used for maintenance can be hermetically sealed.

The invention discloses a lithium titanate battery assembly structure, specifically relates to the field of battery assembly technology, comprising an external protective frame plate, an insulating groove is opened on one side of the external protective frame plate, and a battery negative electrode connecting column is arranged inside the insulating groove , three vertically stacked battery explosion-proof frames are installed at one end of the battery negative connection column, safety mechanisms are provided on both sides of the battery explosion-proof frame; the safety mechanism includes a side flame-retardant plate arranged on one side of the battery explosion-proof frame, the A cross positioning groove block is installed at one end of the side flame retardant plate. The invention adopts a safety mechanism to enable the pressure sensor to monitor the flatulence degree of the lithium battery inside the battery explosion-proof frame, and carry out early warning in real time, which can remind personnel of problems such as abnormality of the lithium battery, avoid the explosion problem caused by the flatulence of the lithium battery, improve the internal strength, and avoid easy to cause Explosion and other problems have effectively improved the safety of lithium batteries during use.