62results about How to "Mechanism is simple and reliable" patented technology

A selective fire firearm may be provided having a fully automatic open bolt and a semi-automatic closed bolt mode of operation. The firearm may include a trigger group having a trigger prop that ensures that, when the trigger is released in the fully automatic open bolt mode, the bolt carrier stops in an open bolt position held by an open bolt sear. The trigger prop may include a foot that, following a first trigger pull in the fully automatic open bolt mode, slides under and props a rear end of the trigger in a position that allows the open bolt sear to catch the bolt carrier when the trigger is released and propped but prevents the trigger sear from engaging the hammer.

PCT No. PCT/FR97/01489 Sec. 371 Date Sep. 11, 1998 Sec. 102(e) Date Sep. 11, 1998 PCT Filed Aug. 13, 1997 PCT Pub. No. WO98/09548 PCT Pub. Date Mar. 12, 1998An applicator holder device including a holder and a pusher mechanism. The pusher mechanism can be actuated so as to pass selectively from a rest position inside the holder into an active position. The pusher mechanism is able to drive an applicator that can be displaced in translation in an axial duct arranged in a head mounted in a detachable manner on the holder. The pusher mechanism can be automatically returned to its rest position when the head is removed from the holder.

A high hat cymbal has a magnetic clutch that engages the top cymbal and allows it to be controlled by a standard high hat foot pedal. When the drummer's foot is removed from the high hat foot pedal, the magnetic clutch strikes a mechanical arm which causes the magnetic clutch to disengage without any action required on the part of the drummer. The top cymbal can be re-engaged by the magnetic clutch so that the high hat foot pedal can now be operated again, simply by depressing the high hat foot pedal. A trip bar may be provided to provide for automatic disengagement of the clutch mechanism.

The invention provides a sea and air amphibious propeller. The propeller comprises a ducted propeller stator, air propellers, air propeller rotors, ducted propellers and ducted propeller rotors, wherein a group of magnets is fixed on the air propeller rotors and the ducted propeller rotors respectively, the air propeller rotors and the ducted propeller rotors rotate coaxially and are nested to thesame ducted propeller stator, and two coils corresponding to the air propeller rotors and the ducted rotors respectively are embedded into the ducted propeller stator. The air propellers are used foraerial propulsion, water propellers are used for underwater propulsion, and the both can work independently. During underwater propulsion, the air propellers are folded back and rotated at a lower speed to eliminate the resistance to the air propellers, and the shaftless ducted propellers work to generate propulsion. In the air, the air propellers are unfolded and rotate to generate propulsion, and the ducted propellers assist the operation. The shaftless ducted propellers have good propulsion performance under water, the air propellers are suitable for working in the air, and the air propellers are combined with the shaftless ducted propellers to realize efficient propulsion and free switching under water and in the air.

A rotary hammer includes a spindle 18 which can be rotatably driven by an intermediate shaft 24 by way of a drive device. A tool holder 16 is arranged for rotation with the spindle 18, and for releasably holding a bit or tool for selective rotation and/or reciprocation. A pneumatic hammering arrangement facilitates repeated impacting of the bit or tool for reciprocation within the tool holder (16). A mode change mechanism includes a knob 18 for selectively operating the rotary hammer in any of three modes, identified as a rotary drive only mode, a hammer only mode and a rotary hammer mode.

The invention discloses a waste gas processing and heat efficient recycling device. An upper tube pass of a shell-and-tube heat exchanger is connected with a waste gas inlet pipe, a lower tube pass of the shell-and-tube heat exchanger is connected with a water tank inlet, a water tank outlet is connected with a bottom inlet of a spraying tower, a top outlet of the spraying tower is connected with a waste gas outlet pipe, the spraying tower is of a sealed structure, a padding layer is arranged in the spraying tower, a water distribution pipe and a rotary drum are arranged on the padding layer, holes are formed in the water distribution pipe, and the water distribution pipe sprays water through the holes to drive the rotary drum and the water distribution pipe to revolve. A water tank is communicated with the water distribution pipe through a water pump, a coiled pipe is arranged in the water tank, the inlet of the coiled pipe is connected with a water inlet valve, the outlet of the coiled pipe is connected with a lower shell pass of the shell-and-tube heat exchanger, and an upper shell pass of the shell-and-tube heat exchanger is connected with a water outlet valve. The waste gas processing and heat efficient recycling device is simple and reliable in structure, low in operation cost, and particularly suitable for recycling the waste heat of tail gas containing pollutants, achieves both environmentally friendly processing and energy recycling, and obtains a large amount of hot water through heat exchange, thereby being high in practicability and broad in market prospect.

The invention discloses a full-automatic eyebrow pencil core filling machine which comprises an automatic quantitative rod feeding system, a quantitative filling system, a multi-station rotary disk system and a mechanical driving system and is characterized in that the quantitative filling system comprises a storing tank, a big valve body assembly, a small valve body assembly, a piston cylinder sleeve assembly and a piston rod driving system; an outlet of the storing tank is connected with an upper opening of the big valve body assembly; a lower opening of the big valve body assembly is connected with the upper end of the piston cylinder sleeve assembly; a piston rod of the piston cylinder sleeve assembly is connected with the piston rod driving system; inlets of the big valve body assembly and the small valve body assembly are connected through a hose assembly; the outlet of the small valve body assembly is provided with a discharge port assembly; the big valve body is a T-shaped valve body; and the small valve body is an L-shaped valve body. The full-automatic eyebrow pencil core filling machine disclosed by the invention has the advantages of breaking through traditional processes of pen making industrials, changing intensive manual labour to mechanization production, reducing the labor cost and increasing the labor efficiency and the product qualification ratio.

The invention discloses an automatic detection system for a ball cage holder, and the system comprises a rack, a sucking disc, a measuring head support, a camera, a camera support, a sliding seat, a sliding rail, a sliding seat cylinder, measuring tools, and a main control machine. During measurement, the sucking disc absorbs the holder, and the sliding seat cylinder pushes the sliding seat to enable the holder to move to a measurement position. The holder is positioned in a movement process, and the two measuring tools achieve one-time precision measurement. Meanwhile, the camera also achieves the precision detection of the holder. Afterwards, the sliding seat cylinder pushes the sliding seat to enable the holder to be separated from the measuring jaws of the two measuring tools. A sucking disc transmission device drives the holder to rotate twice, and the camera achieves the precision detection of the distance between two adjacent holes of the holder. The above process is carried out twice, thereby completing the detection of the holder.

A drilling type sidewall coring apparatus, comprising: a main body, a transmission device, a bit mounted on the transmission device, a rack accommodated in the main body, and a plurality of first hydraulic oil cylinders, the transmission device mounted on the rack in a rotatable manner, the first hydraulic oil cylinders mounted on the main body, pistons of the first hydraulic oil cylinders connected with the rack, the telescopic motion of the pistons of the first hydraulic oil cylinders driving the rack to perform radial motion in the main body so as to make the bit protrude or retract from the main body. The electric motor is mounted in the main body and connected with the right angel speed reducer by the soft shaft. The electric motor transmits power by the soft shaft and the right angle speed reducer to drive the bit to rotate, the transmission efficiency is higher.

The present invention relates to an omnidirectional automated guided vehicle. The omnidirectional automated guided vehicle includes a vehicle body frame and a drive assembly; the drive assembly includes a spindle, two drive motors, and two drive wheels coupled to the same drive axle; each of the drive motors drives one of the drive wheels; the spindle is vertically coupled to a central portion ofthe drive axle; the drive assembly is rotatably mounted to the vehicle body frame through the spindle. The omnidirectional automated guided vehicle realizes steering through the differential speed ofthe motors, and further realizes closed-loop control through encoder feedback; the control logic is simple, and the mechanism is stable and reliable; and forward, backward, traverse, and spinning travel postures can be realized as needed.

The invention discloses a novel high-efficient heated air circulation type cereal drying machine. The novel high-efficient heated air circulation type cereal drying machine comprises a machine frame, a dust exhaust pipe, a top rail, a feed pipe, an equal divider, a bin, a baking bin and a base, wherein the dust exhaust pipe, the top rail, the feed pipe, the equal divider, the bin, the baking bin and the base are sequentially mounted on the machine frame from top to bottom; a lifting machine and a discharge pipe are mounted on the side surface of the machine frame; a flow divider is arranged at an outlet of the lifting machine; cereals are controlled by the flow divider to enter the feed pipe or the discharge pipe; a food grain discharge auger and a moisture meter are mounted in the base; the equal divider is an unpowered automatic-rotation type conical food sprinkling equal divider; the baking bin is divided into an air inlet corner box layer and an air outlet corner box layer up and down; a calorifier is a variable frequency motor; and the magnitude of the air outlet quantity is controlled according to the water ratio measured by the moisture meter. The novel high-efficient heated air circulation type cereal drying machine disclosed by the invention adopts whole sealing design, is simple in structure and reliable in mechanism, the occurrence of material plugging situations can be effectively avoided, and the feed rate of the cereals can be increased; the equal divider is improved, so that the crushing rate is low, the consumption of energy resources is low, the machine is convenient to operate and in maintenance operation, the baking efficiency is high, and the novel high-efficient heated air circulation type cereal drying machine has favorable economic benefits.

The invention discloses an internal and external opening handle of a hatch cover and an opening method. The internal and external opening handle comprises an inner handle, an outer handle, a rotating shaft and a lock pin, wherein the inner handle is connected to one end of the rotating shaft; the outer handle is connected to the other end of the rotating shaft; the lock pin is connected to the rotating shaft; one end of the rotating shaft and the outer handle are located at the outer side of the hatch cover; the other end of the rotating shaft, the inner handle and the lock pin are located at the inner side of the hatch cover. When the hatch cover of an airplane is in a closed state, the hatch cover is opened through the inner handle under normal conditions, the inner handle is not linked with the outer handle, and the withdrawing state of the outer handle is kept; and in emergency, the hatch cover is opened through the outer handle.

A leakage protective plug and a tripping mechanism thereof, comprising a housing, and a tripping mechanism and a conducting structure arranged within the housing, wherein the tripping mechanism comprises a restorable reset button, a tripping bracket, and a tripping coil and a pressing arm arranged in the tripping bracket, wherein the reset button is sleeved in the pressing arm in which a snap fitting mechanism is positioned such that the pressing arm and the reset button may be snapped together, and the pressing arm and the reset button may be disengaged under the control of the tripping coil. It has a simple and reliable structure, and avoids technical problems including poor contact of supply circuit and failure of power leakage protecting functions due to un-complete tripping which are resulted from the deformation of the tripping plate caused by the movement of the tripping iron core and by other external forces.

A separating device (1), in particular for a crankcase venting device of an internal combustion engine, includes an inlet (25) supplying a fluid containing particles to be separated, a baffle plate (22) separating the particles from the fluid, several nozzles (21) oriented toward the baffle plate (22), and a pivotable flap (15) that, as a function of its pivot position, fluidically connects a first number of nozzles (21) with the inlet (25) and fluidically separates from the inlet (25) a second number of nozzles (21).

The invention discloses a bolt support control production zone identification method. At the initial stage, a fixed valve channel of a zone exchange oil production pump is opened, and a pump barrel plunger realizes swabbing production; an oil pumping rod is dropped during zone exchange; the oil pumping rod is firstly connected with an underground zone exchange pump, and then dropped; the oil pumping rod drives the plunger to go downwards to press a reversing rail control mechanism; the reversing rail control mechanism drives a shunt control mechanism to be located at two different high points indirectly; the shunt control mechanism can respectively communicate with an upper fixed valve production system and a lower fixed valve production system under the control of a rail control mechanism, so that the reversing condition of an underground switch can be directly judged according to different lengths of the oil pumping rod remained on the ground at two pump collisions. The bolt support control production zone identification method can directly judge a production zone and a zone exchange condition of an underground zone exchange oil production pipe type pump at the site according to different remained lengths of a polish rod at two pump collisions, so that the reliability and the visibility of zone exchange production are greatly improved, and the possibility that the zone exchange condition can only be checked by production due to the phenomenon that the production zone and the zone exchange condition in a well cannot be directly judged on the ground is avoided.

The invention discloses a centrifugal variable diameter drill tool for rock embedded planting in rocky desertification area. The drill tool comprises a drive control base and a centrifugal variable diameter drill bit, wherein the centrifugal variable diameter drill bit is mounted on the lower side of the drive control base, the drive control base can be mounted on other construction machinery. Through the control of the operation actions of the centrifugal variable diameter drill bit, drilling of large diameter holes embedded in rocks can be completed in rocky desertification area, and rock embedded planting operations in rocky desertification area are conducted.

The invention discloses a double-chain book pushing mechanism, relates to the binding of books, in particular relates to union operation in binding, and aims to provide the double-chain book pushing mechanism by using which a book pushing piece does not occur angular displacement during the book pushing process. The double-chain book pushing mechanism comprises a first chain wheel (11), a second chain wheel (12), a third chain wheel (21) and a fourth chain wheel (22) which have parallel axes and equal diameters; the distance between the axes of the first chain wheel and the second chain wheel is equal to the distance between the axes of the third chain wheel and the fourth chain wheel; the distance between the axes of the third chain wheel and the first chain wheel is equal to the distance between the axes of the forth chain wheel and the second chain wheel; a first transmission chain (13) is connected with the first chain wheel and the second chain wheel; a second transmission chain (23) is connected with the third chain wheel and the fourth chain wheel; a first pin shaft (3) is fixedly arranged on the first transmission chain; a second pin shaft (4) is fixedly arranged on the second transmission chain; the distance between the axes of the first pin shaft and the second pin shaft is equal to the distance between the axes of the third chain wheel and the first chain wheel; both the first pin shaft and the second pin shaft are rotatably connected to the book pushing piece.

The invention relates to a positioning device for automatic feeding of a metal tensile test robot, and a feeding method using the positioning device. The positioning device comprises a clamp, and a positioning bottom plate at the bottom of a clamping cavity of the clamp is provided with a first guide hole for allowing the lower end of a bar to extend into to realize positioning of the lower end ofthe bar; and a positioning plate fixedly arranged on the upper surface of the clamp is provided with a second guide hole which is coaxial with the first guide hole and used for allowing the bar to penetrate into the center of the clamping portion of the clamp and achieving positioning of the upper end of the bar, and the positioning device is further provided with a center hole used for calibrating the relative position of the robot and a stretcher. The positioning device is simple and reliable in mechanism and capable of meeting the actual production requirement while manual participation isavoided. By using the positioning device, the bottleneck of automatic feeding of the metal tensile test robot is solved, and coarse positioning is provided for robot feeding, so the production efficiency is greatly improved, and the labor intensity of workers is reduced.

An introducer assembly includes a distal sheath and a proximal sheath. A splitting element is located at a proximal end of the distal sheath and is arranged to split the distal sheath in a distal direction, so as to deploy first a branch element of a medical device and thereafter the distal end of the medical device. The proximal sheath can then be retracted to release the proximal end of the medical device. Deployment of the medical device from the branch element first enables accurate positioning of the branch element prior to deployment of the main body portion of the medical device.

A surfboard lock is described being of unitary construction and including a lock body including two engagement members; the engagement members are movable from a retracted position to an extended position and may be locked in the extended position; in the retracted position the engagement members may be at least partially introduced into the finbox opening of a surfboard; in the extended position the engagement members may engage with the internal walls of the finbox opening to resist removal of the lock therefrom; and attachment means affixed to the lock body for attaching the lock to a sturdy object.

The invention discloses box inner wall painting equipment. The box inner wall painting equipment comprises: a spray gun capable of spraying paint; a first deflecting mechanism capable of driving the spray gun to rotate; a second deflecting mechanism capable of driving the first deflecting mechanism to rotate; a rotating mechanism capable of driving the second deflecting mechanism to rotate, a first translation mechanism capable of driving the rotating mechanism to flatly move; a second translation mechanism capable of driving the first translation mechanism to flatly move, wherein rotating axes of the first deflecting mechanism and the second deflecting mechanism are in parallel. The box inner wall painting equipment has the beneficial effect that: a distance between the spray gun and theinner wall of a box can be adjusted by the first translation mechanism and the second translation mechanism, so that the spray gun can achieve higher movement capacity, and the generality of the box inner wall painting equipment can be improved. The invention relates to painting equipment.