31results about How to "Avoid vibration loosening" patented technology

The invention discloses a clamping assembly for a milling machine, comprising a fixed frame, a long hole, a fixed seat, a fixed plate, a chute, a movable plate, a spring, a screw hole, an adjustment screw and a groove, and the upper end of the fixed frame is provided with a fixed seat, the two sides of the fixed frame are provided with long holes, the two ends of the fixed seat are symmetrically provided with fixed plates, a chute is provided between the two fixed plates, and two symmetrically arranged The movable plate is provided with a spring between the fixed plate and the movable plate arranged on the same side, and the fixed plate is provided with a screw hole, and an adjusting screw is arranged in the screw hole, and the adjusting screw passes through the screw hole to contact the For the movable plate, a groove is provided at the contact between the adjustment screw and the movable plate, and the adjustment screw extends into the groove. The invention has the advantages of simple structure, convenient use, good clamping effect, convenient adjustment and high processing precision.

The invention discloses a broken wall cooking machine, which comprises a base main unit and a stirring cup detachably installed on the base main unit. The stirring cup includes a cup body and a cup cover. There is a trigger mechanism that is triggered by the cup cover when the cup cover is connected to the cup body to connect the circuit of the broken wall cooking machine. The trigger mechanism includes a safety switch arranged on the base host and a push safety switch arranged on the cup body Closed lifting rod, the trigger mechanism also includes a push rod boss arranged on the cup cover to push the lifting rod to move when the cup cover is connected with the cup body. The cup cover is provided with a locking buckle, and the cup body is provided with a locking boss that rotates and engages with the locking buckle. When the locking buckle rotates and buckles the locking boss, the push rod The boss pushes the lifting rod to press down the safety switch, so that the circuit of the broken wall cooking machine is connected.

The invention discloses a cyclic breaking and screening device for a feed. The device comprises a screening box, the top plate of the screening box is communicated with the discharging end of a crusher, the sidewall of the screening box is provided with a first sieve plate, a magnetic rod group and a second sieve plat, one side of the first sieve plate is in sleeve connection with one end of a return tube, the other end of the return tube is in sleeve connection with a feeding tube, a spiral track is mounted in the feeding tube, the feeding tube is communicated to the feeding end of the crusher, one side of the second sieve plate is in sleeve connection with a discharging tube, and the bottom plate of the screening box is provided with a collection port. The feed is broken by the crusher and then enters the screening box, the unsatisfied large-granule feed slides into the return tube along the first sieve plate, enters the feeding tube through the return tube, is conveyed into the crusher through the spiral track, and is broken again, the feed goes through the first sieve plate and falls on the magnetic rod group, iron scraps in the feed are sucked out and then fall on the second sieve plate, the satisfied feed slides into the discharging tube along the second sieve plate and is bagged, and the unsatisfied powdery feed falls down from the second sieve plate, and flows out of the collection port.

The invention discloses a processing method and a processing tool for a trough plate. The processing tool comprises a support seat, a swing plate, a positioning pin, a sliding hole, a motor and a rotating assembly, wherein the swing plate is in fit installation on the top side of the support seat through a pin, the sliding hole is formed in the swing plate, a cutter head is adjusted to a central position of a rotating frame by setting the rotating assembly and releasing a positioning screw rod on a roller, so the used cutter head is free to sag and position and the unused cutter head and the used cutter head are arranged vertically; the roller is positioned by the positioning screw rod so as to replace the cutter head randomly, and the conversion of various cutter heads can be realized; the tool replacement process can be reduced, and the efficiency of punching is improved; by setting a clamping assembly, a movable cylinder is squeezed when the tool is replaced, the swing rod is resetunder the cooperation of a contraction spring, and a positioning block is clamped in the positioning hole to realize replacement; and the stability of the replaced cutter head can be ensured, vibration and loosening are avoided, and the stability and safety of a punching process are ensured.

The invention discloses an automatic disengaging device for a charging mooring line of a multi-rotor unmanned aerial vehicle. The automatic disengaging device comprises a device outer shell fixedly mounted on the unmanned aerial vehicle, a fixed electrode connected with the device outer shell and provided with an electromagnet and a movable electrode provided with a permanent magnet; the fixed electrode is connected with a vehicle-mounted battery of the unmanned aerial vehicle; an electromagnet control circuit which controls the electromagnet to be powered on and off is arranged on a control circuit board of the unmanned aerial vehicle; the movable electrode is connected with the charging mooring line; and the charging mooring line is connected with a ground power supply. According to the automatic disengaging device, an electromagnet spring center structure and a permanent magnet spring center structure are combined, the function of remote control disengaging of the charging mooring line of the unmanned aerial vehicle is achieved, it is guaranteed that the unmanned aerial vehicle can continuously fly in a certain range, and the requirement that in special needs, the charging line is disengaged, and flying is continued through the internally-arranged battery is also met.

The invention discloses a vibration-proof universal rotary machining device with a function of tool feeding in the inclined direction. The vibration-proof universal rotary machining device with the function of tool feeding in the inclined direction comprises a base. A stand column is arranged on the top of the base, and the base and the stand column are connected through a vibration preventing device. The vibration preventing device comprises a fixing base which is connected with the base, and further comprises a fixing frame plate, wherein the fixing frame plate is arranged at the bottom of the stand column, and the fixing base and the fixing frame plate are connected. A sliding block is arranged on one side of the stand column, and an inclined tool feeding locating device is arranged onthe sliding block. The vibration-proof universal rotary machining device with the function of tool feeding in the inclined direction is small in size and convenient to carry, assemble, disassemble, repair and replace. Inclined tool feeding drilling can be conducted in the 360-degree direction, the construction requirement for boring in a circular hole wall or in the inclined direction is met, andthe accuracy is high. Meanwhile, the stand column of a milling machine can be effectively prevented from vibrating in the milling and drilling process, the phenomenon that connecting screws of the base and the stand column are prone to loosening due to the vibration is avoided, the connection of the base and the stand column of the milling machine can be stabler, and then the milling and drillingmachining accuracy of the milling machine is improved.

The invention relates to a thread tension adjustment mechanism of a sewing machine. A screw is assembled on a sewing machine body, two thread champing pieces and a spring are connected with the screw in sequence in a sleeved manner to enable the two thread clamping pieces to be arranged between the spring and the machine body in a butted manner, a knob is arranged, a screw hole is formed in the center of the knob to be in screw joint with the screw and pressed on the spring in a butted manner, and a plurality of slots are formed in the periphery of the screw hole of the knob. Thereby, by the aid of the slots formed in the periphery of the screw hole of the knob, the knob screw hole with the diameter smaller than that of the screw can generate extension margin to benefit screw joint with the screw; when the knob is positioned to restore, the screw can be clamped tightly to be prevented from loosening due to vibration, and accordingly pressure on the spring is stabilized to keep adjustment statuses of a thread.

The invention relates to the technical field of metal gaskets, in particular to a thin adjusting gasket convenient to fix. A first metal gasket, a first rubber gasket and a second metal gasket are sequentially stacked from bottom to top; a limiting groove is formed in the upper surface of the first metal gasket, the inner end of the limiting groove is arranged on the inner side wall of the first metal gasket in a penetrating mode, the outer end of the limiting groove is arranged on the outer side wall of the first metal gasket in a penetrating mode, and a limiting block is fixedly arranged onthe lower side wall of the first rubber gasket and movably clamped in the limiting groove; a rough gasket is fixedly arranged on the lower side wall of the second metal gasket and abuts against the upper surface of the first rubber gasket; the first rubber gasket is clamped between the first metal gasket and the second metal gasket, the first rubber gasket and the first metal gasket are connectedthrough the limiting groove and the limiting block, and the first rubber gasket and the second metal gasket are connected through the rough gasket. Therefore, when the nut is screwed, elastic extrusion exists in the gasket, and the nut is jacked tightly and is not prone to loosening.

The invention discloses a portable anti-vibration multi-station universal rotary machining device. The device comprises a base, wherein a stand column is arranged above the base, and the base is connected to the stand column through an anti-vibration device; the anti-vibration device comprises a fixing base and a fixing frame plate, wherein the fixing base is connected to the base, the fixing frame plate is arranged at the bottom of the stand column, and the fixing base is connected to the fixing frame plate; and a sliding block is arranged on one side of the stand column, and a rotary millinghead device is arranged on the sliding block. The device is small in size and convenient to carry, the machining angle and the milling head direction can be adjusted by 360 degrees in the X-axis direction and the Z-axis direction, the telescopic length of the milling head can be adjusted, the limitation of milling head connection is reduced, the working requirements of a narrow machining area aremet, so that the milling machine is more convenient to use, and the milling working efficiency is improved; and meanwhile, the stand column of the milling machine can be effectively prevented from vibrating in the milling and drilling process, connection screws of the base and the stand column are prevented from being easily loosened by vibration, so that the milling machine base and the stand column are connected more stably, and therefore the milling and drilling precision of the milling machine is improved.

The invention discloses an automobile component fastening and connecting device which comprises an L plate. Through holes are formed in two panels of the L plate; a bolt penetrates through the throughholes, and comprises a first screw rod part; the first screw rod part is connected with a second screw rod part; the diameter of the second screw rod part is smaller than the diameter of the first screw rod part; the first screw rod part is in threaded connection with a first nut; the second screw rod part is in threaded connection with a second nut; and arc-shaped elastic pieces are fixed onto the first nut and the second nut. The automobile component fastening and connecting device provided by the invention is simple in structure and convenient to use; and through multiple ways, the nuts can be pre-tightened and extruded and are effectively prevented from vibration relaxation caused by vehicle running.

The invention relates to a thread clamping adjustment knob of a sewing machine. The thread clamping adjustment knob of the sewing machine is mainly characterized in that a knob body is arranged on a screw of a sewing machine body in a screwed manner, the knob body is provided with screwing portions which are corresponding to the periphery of a central through hole and formed by surrounding the through hole, the internal diameter of the through hole is smaller than the external diameter of the screw, a thread is arranged on the inner face, corresponding to the through hole, of each screwing portion, and an elastic slot is formed in the periphery of each screwing portion. Thereby, via the elastic through hole, the knob body enables the knob through hole with the diameter smaller than that of the screw to generate extension margin, and screw joint with the screw is benefited, the screw can be clamped tightly to be prevented from loosening due to vibration, the screw can be no longer processed additionally to form an elongated slot, and structural strength of the screw is not damaged; meanwhile, processing cost and time of the elongated slot are reduced, substantial benefits such as simplification of parts and reduction of manufacturing cost are achieved, and practicality and convenience are improved in whole application and use of the knob.

The invention relates to the field of emulsion pump heads, in particular to a full-plastic emulsion pump head. A pressing head, a main column, a pump body, a bottle cap, a plastic spring and a movable pump plug are all made of plastic, and are environmental-friendly, safe and convenient to recycle; meanwhile, an elastic assembly that is adopted is a plastic spring, and a plastic ball for liquid to enter is arranged in the lower end of the pump body; and meanwhile, the problems that a metal spring and a metal ball are corroded and contents are polluted when the metal spring and the metal ball are adopted are solved. The pressing head is rotated into a blocking groove, a first-stage clamping block is used for preventing a guide strip from automatically exiting from the blocking groove, a self-locking structure is safe and reliable, and the problem of liquid leakage caused by the fact that the guide strip exits from the blocking groove due to vibration and loosening in the transportation process is solved; and in addition, according to the full-plastic emulsion pump head, a buckle can be arranged between the pressing head and the bottle cap so as to avoid the problem of liquid leakage caused by the fact that the guide strip moves along a guide groove, and therefore locking can be achieved through left-right rotation or the buckle according to the specific production condition.

The invention discloses a cylinder body milling surface machining auxiliary tool. The cylinder body milling surface machining auxiliary tool comprises an auxiliary inclined block and a rubber mat, wherein at least two sets of screws are arranged at one side of the auxiliary inclined block and used for connecting the auxiliary inclined block and a machining table, and an inner groove body is formed in the auxiliary inclined block; and the rubber mat is bonded to the inclined face of the auxiliary inclined block, the inclined face is attached to a machining face, a plurality of mat holes are formed in the surface of the rubber mat, and the mat holes communicate with the inner groove body. According to the technical scheme, the screws are additionally arranged at the upper portion and the lower portion of the side of the auxiliary inclined block correspondingly, so that the phenomenon that in the face milling process, the machining face vibrates and loosens is avoided, the stability of the whole auxiliary inclined block is guaranteed, and the qualified rate of products during machining is guaranteed; and the rubber mat is additionally arranged on the bevel edge of the auxiliary inclined block, and when the auxiliary inclined block makes contact with the machining face, the protection and buffering effects can be achieved; and when the auxiliary inclined block is combined with a dust collecting part for use, negative pressure generated by the dust collecting part can be utilized, the rubber mat is tightly attached to the machining face, and a gap is prevented from being generated between the auxiliary tool and the machining face.

The invention provides electricity testing switching operation equipment for a distribution line. The equipment comprises an insulating rod, a functional part fixedly connected to one end of the insulating rod, and a grab handle fixedly connected to the other end of the insulating rod, the functional part comprises a sleeve and a conductive working head; wherein the sleeve comprises an upper working part and a lower working part, one end of the upper working part is fixedly connected with the working head, the lower working part is detachably connected to the other end of the upper working part, the tail end of the lower working part is fixedly connected with the insulating rod, an electroscope is arranged between the upper working part and the lower working part, the electroscope is provided with a contact head, and the contact head is electrically connected with the working head. According to the equipment, an operator can clearly know the electrification condition of the line when switching operation is carried out.

The invention belongs to the field of robots, and particularly relates to a safety device of a robot joint. Supporting legs serving as fixed ends are arranged on the two sides of a turnover table, thetwo sides of the turnover table are rotatably connected with the supporting legs, one side of the turnover table is connected with a servo drive motor mounted on the corresponding supporting leg on the same side, the other side of the turnover table is provided with a positive polygonal shaft end, one side or two sides of the positive polygonal shaft end are provided with power sources, the powersource on each side is arranged on the corresponding supporting leg on the same side, the power source on each side is connected with a self-locking sliding block through a connecting piece, each self-locking sliding block is in sliding connection with the corresponding supporting leg on the same side, the power sources drive the self-locking sliding blocks to do reciprocating motion, and self locking of the turnover table is realized through extrusion of the self-locking sliding blocks and the positive polygonal shaft end. Surface contact is adopted, the bearing is large, accurate positioning can be realized, the function that the power sources can be locked through working is realized, compared with an existing electric bolt, the friction and friction loss can be avoided, and the requirement on cleanliness is better met.

The invention relates to a high-vibration-resistant waterproof high-power electrical connector. The eccentric pins and the socket jack component of a socket are coaxially connected with a pin insulator component in a penetration way without being located at the central axis of a socket shell to be packaged in the socket shell. The inner wall of the socket jacks is provided with socket crown springs. A central pin is coaxially arranged at the center of the socket jacks. There is one central pin and multiple eccentric pins. The eccentric jacks and the plug pin component of a plug are coaxially connected with a jack insulator component in a penetration way to be packaged in a plug shell. Eccentric jacks and the eccentric pins are correspondingly plugged. Plug outer slots for plugging of the socket jacks are reserved between the periphery of the plug pins and the jack insulator component. Plug inner jacks for plugging of the central pin are arranged in the plug pins. The jack wall of the plug inner jacks is provided with plug crown springs plugged with the outer wall of the central pin. The connector is compact in structure, convenient in wiring and mutual plugging, firm and stable andvibration-resistant and anti-loosening.

The invention provides a convenient hammer for decoration capable of improving the fixing quality of ceramic tiles such as floor bricks and wallspace bricks. The convenient hammer for decoration comprises a hammer head and a hammer handle. A first soft cover and a second soft cover are separately arranged on two end surfaces of the hammer head, separately; an elastic connecting rope is arranged between the first soft cover and the second soft cover; the bottom of the tail end of the hammer handle is sharp; and a movable protecting cover is also arranged at the tail end of the hammer handle ina sleeving manner. The hammer provided by the invention can provide relatively great elasticity if being used for knocking the ceramic tiles such as floor bricks and wallspace bricks, so that a decoration worker can knock the surfaces of the ceramic tiles such as floor bricks and wallspace bricks with a relatively great force without breaking the ceramic tiles, and therefore, slurry on the bottomsurfaces of the ceramic tiles extends more uniformly toward a gap, so that the fixing quality is improved; moreover, as the bottom of the tail end of the hammer handle is sharp, when the constructionworkers feel that the fixing quality is not satisfactory, the construction workers can pull up the movable protecting cover and prize up the ceramic tiles with the sharp portion of the hammer handle to rework, so that the fixing quality of the ceramic tiles is better guaranteed.