11results about How to "Prevent misfiring" patented technology

The invention discloses a low-nitrogen oxide burner structure which comprises an air inlet barrel, an air barrel, a fire gathering cover, a flame stabilizing barrel, a gas main pipe and a gas ejector with an ejection pipe. The air inlet barrel, the air barrel, the fire gathering cover and the flame stabilizing barrel are sequentially in butt joint and communicated to be used for conveying air, the gas main pipe is arranged in the air barrel, and the gas main pipe is branched into a plurality of gas branch pipes. A center air pipe is arranged in the center of the flame stabilizing barrel, a plurality of blades are arranged in the flame stabilizing barrel around the center air pipe, and gaps between the adjacent blades form outer air through grooves. The gas branch pipes extend into inlets of the injection pipes in a one-to-one correspondence mode with gaps, and the injection pipes are arranged around the flame stabilizing barrel by a circle. A two-stage air conveying channel is formed by the central air pipe and the outer air through groove, and a fuel gas input channel is formed by the injection pipe. The mixing uniformity of air and fuel gas is enhanced, graded conveying of the fuel gas and the air is achieved, combustion flames are stable, flue gas can flow back for combustion, and meanwhile generation of nitric oxide is reduced.

The utility model belongs to the technical field of combustion, and particularly discloses a fire grate, a combustor and gas heating equipment. The fire grate comprises an inner shell, an inner core head and a rectification inner core. An injection channel and a first flame channel which communicate with each other are formed in the inner shell, and the upper end of the first flame channel is open; the inner core head comprises a fire hole plate covering an opening in the upper end of the first flame channel, and at least three first fire holes are formed in the fire hole plate in the first direction of the fire row; the rectifying inner core is vertically inserted into the first flame channel, the rectifying inner core and the two side walls, in the first direction, of the inner shell are arranged at intervals, the upper portion of the first flame channel is divided into a plurality of sub-flow channels through the rectifying inner core, and the upper end of each sub-flow channel communicates with the corresponding first fire hole. According to the fire grate, the combustor and the fuel gas heating equipment, the structure of the fire grate can be simplified while the combustion stability is improved, the machining difficulty of the fire grate is reduced, and therefore the cost of the combustor and the fuel gas heating equipment is reduced.

The present invention provides an electric stapler for preventing misfiring, comprising a body, a driving assembly disposed inside the body, the driving assembly comprising a rack and a first motor for driving the rack to move, the rack being provided with a protruding portion protruding therefrom; a sensing assembly, the sensing assembly comprising a control panel disposed parallel to the rack and a sensor disposed on the control panel, the sensor being provided with at least two sensors disposed toward the rack, the protruding portion disposed toward the control panel, the sensor being configured to control the first motor to stop the rack from moving when detecting that the protruding portion passes by. The rack of the present invention can move in different working modes, and the travel of the rack can be limited by the sensing assembly to prevent misfiring.

The invention discloses a segmented differential propelling system for an anastomat, and relates to the technical field of medical instruments, the segmented differential propelling system comprises a nail bin, a sleeve, a sliding block, an arc-shaped elastic piece and a nail anvil, a nail pushing block is slidably mounted in the nail bin, the nail pushing block can push anastomosis nails in the nail bin to suture tissues when moving, and a knife pushing groove is formed in the nail bin; a push rod capable of moving along the sleeve is arranged in the sleeve in a penetrating mode, and the front end of the push rod is provided with a blade used for cutting tissue and can stretch into the push broach groove. The slider is slidably connected to the front end of the push rod and can move back and forth, and the front end of the slider can abut against the nail pushing block; one end of the arc-shaped elastic piece is connected with the rear end of the sliding block, the other end of the arc-shaped elastic piece is connected with the push rod, the arc-shaped elastic piece is bent when the sliding block moves backwards, and the cutter pushing groove can abut against the arc-shaped elastic piece so that the arc-shaped elastic piece can deform to push the sliding block to move forwards. The nail anvil is rotationally connected with the nail bin, and the nail anvil is matched with the nail bin to clamp tissue. According to the surgical anastomosis device, the surgical anastomosis effect is guaranteed, and meanwhile mistaken percussion is prevented.

The fishing gun device comprises a gun-shaped body, a fish hook, a fishing line, a trigger mechanism, a float mechanism, a sliding mechanism, a safety mechanism, a launching mechanism and a winding mechanism; the gun-shaped body has a containing cavity, the containing cavity is provided with a trajectory for guiding the float mechanism and the launching mechanism to move along a preset path; the fish hook is movably arranged in the float mechanism and connected with the winding mechanism through the fishing line; the sliding mechanism is slidably arranged on the gun-shaped body and is clamped with the launching mechanism to keep the launching mechanism in an energy storage state; the winding mechanism is used for winding and releasing the fishing line; the trigger mechanism is arranged below the winding mechanism and is clamped with the launching mechanism, triggers the winding mechanism to release the fishing line and simultaneously releases the locking of the launching mechanism, and then drives the float mechanism to be launched along the trajectory; the safety mechanism is used for preventing the launching mechanism from being misfired. The fish hook is automatically launched, the operation is simple and convenient, the safety is improved, and the fishing fun is enhanced.

The present invention provides a firing mechanism and an anastomosis device, which includes a nail pushing assembly, the nail pushing assembly includes a selectively linked connecting portion and a firing rod, and a safety device is provided on the connecting portion. Through the present invention, when the distance between the nail anvil assembly and the nail magazine does not reach a suitable position, the connecting portion is in a first state, the firing rod and the connecting portion are not linked, and the stapler will not be misfired at this time. When the nail anvil assembly moves to a suitable position, the connecting portion is in a second state, the firing rod and the connecting portion are linked, and normal firing can be performed at this time. During the resetting process after firing, the safety device is in a fourth state, the connecting portion cannot enter the second state from the first state, and before the next surgical preparation is completed, the connecting portion is always in the first state, and the stapler cannot be fired again; therefore, the present invention can not only prevent misfires when the surgery is not ready, but also effectively prevent secondary firings when the fired nail magazine has not been replaced.

The invention provides a fishing gun device. The fishing gun device comprises a gun-shaped main body, a fishing hook, a fishing line, a trigger mechanism, a buoy mechanism, a sliding mechanism, a safety mechanism, an ejection mechanism and a line winding mechanism, the gun-shaped main body is provided with a containing cavity, and a trajectory is arranged in the containing cavity and used for guiding the buoy mechanism and the ejection mechanism to move along a preset path; the fishhook is movably arranged in the buoy mechanism and is connected with the coiling mechanism through a fishing line; the sliding mechanism is arranged on the gun-shaped body in a sliding mode and connected with the ejection mechanism in a clamped mode so that the ejection mechanism can be kept in an energy storage state. The winding mechanism is used for winding and releasing a fishing line; the trigger mechanism is arranged below the coiling mechanism and is in buckled connection with the ejection mechanism, the coiling mechanism is triggered to release the fishing line, locking of the ejection mechanism is relieved at the same time, and then the buoy mechanism is driven to eject the fishing line along a trajectory; the safety mechanism is used for preventing the ejection mechanism from being mistakenly ejected. The fishhook can be automatically launched, the operation is simple and convenient, the safety is improved, and the fishing fun is enhanced.

The present invention relates to a circumcision stapler, comprising: a shell assembly, a pin support assembly, a cutting assembly, a driving assembly and an indicating assembly; the shell assembly comprises a first shell, a second shell and a fixing bracket structure integrally formed with the first shell; the fixing bracket structure is arranged in the end of the first shell, the fixing bracket structure has a long hole, and the inner wall of the long hole has a plurality of longitudinally arranged grooves; the cutting assembly is sleeved on the outer surface of the fixing bracket structure, and the driving assembly pushes the cutting assembly to move; the end of the second shell is rotatably connected to the tail of the first shell; the indicating assembly is arranged in the second shell. The circumcision stapler can reduce the number of parts and process steps.

An electric laparoscopic stapler and a control method and a control device thereof. The control method comprises: after power is turned on, when it is confirmed that the staple magazine assembly is fully assembled and closed, the timing is started; and whether to release the lock of the staple magazine assembly is determined according to the timing duration and the unlocking instruction. The control method provided in the embodiment of the present application can start the timing after power is turned on and when it is confirmed that the staple magazine assembly is fully assembled and closed, and determine whether to release the lock of the staple magazine assembly according to the timing duration and the unlocking instruction, thereby facilitating the doctor to perform the firing operation at the appropriate time, and preventing the doctor from misfiring the instrument due to misoperation of the instrument, thereby improving the convenience and safety of use of the electric laparoscopic stapler.

The utility model belongs to the technical field of medical equipment, especially, relate to a kind of anastomat firing assembly.The utility model to the situation that cutting knife is located on the nail bin in prior art needs to ensure that nail bin is installed in place and nail bin is intact so that the advancing assembly of anastomat can correctly advance cutting knife to push slider to press and suture nail condition, provide a kind of anastomat firing assembly, it is unlocked by the cutting knife of correctly installed nail bin tail portion on the nail bin support above by being provided with the safety block with two safety unlocking areas, so that advancing assembly can smoothly push cutting knife, when advancing assembly is withdrawn, it can be unlocked safety block from the nail bin support below by advancing assembly to realize secondary unlocking, so that the stable firing and reply function are reached.

The present invention provides a circular tube type stapler, which includes a stapler body, the stapler body includes a nail pushing piece, a nail pushing rod and a nail anvil shaft, the nail anvil shaft is sequentially inserted in the nail pushing piece and the nail pushing rod, and the nail anvil shaft includes a first nail anvil shaft portion with a smaller outer diameter at the distal end and a second nail anvil shaft portion with a larger outer diameter at the proximal end. By adopting the present invention, when the distance between the nail anvil assembly and the nail magazine does not reach a suitable position, the distal end of the firing piece on the nail pushing piece is located on the second nail anvil shaft portion, the nail pushing rod and the nail pushing piece are not linked, even if the operating handle is gripped, the nail pushing rod will not push the nail pushing piece, and the stapler will not be fired. Only when the nail anvil assembly moves to a suitable position relative to the nail magazine, the nail pushing rod and the nail pushing piece are linked, and the nail pushing rod can push the nail pushing piece to fire the stapler; thereby, under the premise of ensuring normal operation, misfiring when the operation is not ready is prevented, thereby improving the safety of the instrument.