45results about How to "Avoid Rigid Impact" patented technology

The invention discloses spring winding equipment for spring processing, and relates to the technical field of spring winding processing, the spring winding equipment comprises a base, a control cabinet arranged on one side of the top of the base, a vertical moving plate slidably arranged between two guide rails, a spline cylinder rotatably mounted on the moving plate, and a winding roller connected to the suspended end of the spline cylinder; a positioning disc is mounted at the outer end of the winding roller; a driving assembly is installed in the control cabinet. A supporting mechanism is installed at the front end of the stand column. A guide mechanism is mounted in the top opening of the protection box; through cooperation of the winding rollers, the supporting mechanism and the guide mechanism, rapid winding operation can be conveniently achieved according to the gap density of different springs, the winding rollers with different diameters can be selected for use, winding operation of the springs with different diameters is achieved, and the winding efficiency is improved. The situation that the winding roller swings and deviates due to the fact that the suspended end is stressed when the winding roller rotates can be avoided, the situation that steel bars deflect when being guided can also be avoided, and the precision of the spring in the winding production process is improved.

The present invention discloses an electromagnetic digital screen, including a bottom shell and a top cover, wherein a receiving cavity is formed between the bottom shell and the top cover, and a circuit board layer, a light source layer, a light guide layer and a display layer are stacked in sequence from bottom to top in the receiving cavity, and further including: a luminous body, wherein a plurality of luminous bodies are arranged in an array on the upper surface of the light source layer, and the upper end of the luminous body abuts against the light guide layer; the light source layer can be movably arranged, and a movable interval is reserved between the lower end and the circuit board layer; an inertia component, which is fixedly arranged in the receiving cavity and has a movable counterweight. The present invention arranges the inertia component, and when the bottom shell and the top cover are impacted, the counterweight moves under inertia, and since a movable interval is reserved between the light source layer and the circuit board layer, the moving counterweight is linked to the light source layer through the linkage component to move away from the light guide layer, thereby achieving that at the moment of impact, the light source layer is away from the light guide layer to avoid the luminous body from being subjected to rigid impact, and the luminous body is protected from damage.

The utility model relates to the technical field of road and bridge height limitation, in particular to a height-limited metering device for an under-bridge protection structure, which comprises two bases, and a plurality of fixing nails are slidably connected to the bases in a penetrating manner; the supporting mechanism is arranged on the two bases, the supporting mechanism comprises two supporting cylinders, the two supporting cylinders are fixedly connected to the two bases respectively, supporting columns are slidably connected into the supporting cylinders, a plurality of limiting grooves are formed in the supporting columns, and the supporting cylinders, the supporting columns, the limiting grooves, limiting rods, graduated scales and the like are matched, so that the supporting cylinders are matched with the graduated scales; the height of the limiting rod can be conveniently adjusted, the applicability is improved, rigid collision between a vehicle and the height limiting rod is avoided through cooperation of a spring, a sliding block and the like, a pressure sensor, a controller, an alarm lamp and the like can be conveniently matched, sound alarm and remote reminding are conducted, a driver or nearby people can be conveniently reminded, and the practicability is high. The height limiting rod, the supporting column and the like can be prevented from being damaged within a certain range, and safety is improved.

This utility model discloses a radio frequency transceiver for communication, relating to the field of electrical communication technology. It includes: a housing with an antenna connected to one end; a circuit board installed inside the housing and electrically connected to the antenna; a signal transmitting module and a signal receiving module, respectively integrated on the circuit board; and a pair of shielding covers installed on the circuit board, respectively covering the signal transmitting module and the signal receiving module. By providing a bushing on the inner surface of a first ferrite semi-magnetic ring, and making the portion of the bushing inside the first ferrite semi-magnetic ring form a load-bearing structure, when the wire harness is placed on the bushing, the bushing provides an upward load-bearing force to the wire harness. This load-bearing force can balance the downward tendency of the wire harness under gravity, thereby effectively preventing the wire harness from rubbing against the hole wall of the shielding cover due to long-term downward movement and preventing excessive gaps between the top of the wire harness and the inner wall of the second ferrite semi-magnetic ring. This prevents wear of the wire harness insulation layer or breakage of the wire core and magnetic leakage caused by increased gaps above.

This invention relates to the field of molding and joining equipment for plastic sheets, specifically to a far-infrared hot-melt overlapping plastic box forming device, comprising a frame, a lower pressure mold fixedly connected to the frame, and a pressing mechanism. The pressing mechanism is disposed above the lower pressure mold and can move in a direction perpendicular to the surface of the lower pressure mold to press the joint of the sheet. A first clamping mechanism and a second clamping mechanism are respectively disposed on both sides of the lower pressure mold, which are used to clamp the two sections of the sheet to be joined. This invention, by fixing the first clamping mechanism and rotatably disposing of the second clamping mechanism, uses a rotating shaft to drive the second clamping mechanism to rotate around the axis, so that the sheet held by the second clamping mechanism automatically changes its spatial posture during the rotation, and drives the unconstrained sheet to move synchronously, thereby automatically converting the sheet from the initial enclosed state to a flat enclosed state that is easy for hot-melt pressing.

This invention discloses a dual-station automatic rust removal device for pipe ends, combining laser and mechanical processes, based on a hoisting system, relating to the field of metal pipe surface treatment technology. The device includes a gantry crane mechanism and at least two parallel combined grinding stations. Each combined grinding station includes a combined rust removal device and a roller support mechanism. The roller support mechanism is equipped with actively driven rollers that can rotate the pipe at a uniform speed around its own axis. The combined rust removal device integrates an outer wall rust removal unit, an inner wall rust removal unit, and a positioning unit. Each rust removal unit includes mechanical grinding components and laser rust removal components. The positioning unit enables automatic alignment of the pipe end, simultaneously completing graded rust removal operations on the inner and outer walls of the pipe end. This invention employs a dual-station parallel layout to improve overall operational efficiency, combines mechanical coarse grinding with laser fine rust removal to ensure rust removal quality, integrates a negative pressure dust removal structure, and combines the advantages of high automation and clean operation, adapting to large-scale pipe end rust removal needs.

This utility model belongs to the field of grinding machine technology, specifically relating to a vibration-damping grinding machine for mold processing. The vibration-damping grinding machine includes a base, with a U-shaped plate fixedly connected to the upper surface of the base. A first circular hole is formed on the upper surface of the U-shaped plate, and a guide sleeve is fixedly connected to the inner wall of the first circular hole. The vibration-damping grinding machine can control the movement of a second cylinder on a first cylinder via a lifting mechanism. Simultaneously, when the second cylinder moves up or down, the friction between the arc-shaped plate and the hollow damping column changes through the cooperation of the trapezoidal groove and trapezoidal block. Therefore, when the vibration of the vibration-damping grinding machine is severe, the friction between the arc-shaped plate and the hollow damping column can be increased to improve energy consumption. When the vibration of the vibration-damping grinding machine is slight, the friction between the arc-shaped plate and the hollow damping column can be reduced to avoid rigid impact caused by excessive damping, ensuring stable operation of the vibration-damping grinding machine.

This utility model provides a boltless comb-tooth plate multi-directional displacement expansion joint device, relating to the field of bridge construction technology. It includes a bridge body, with a displacement expansion joint assembly installed on the inner side of the bridge body. The displacement expansion joint assembly includes main comb teeth installed on the inner side of the bridge body, and auxiliary comb teeth installed on the left side of the main comb teeth. Anchor plates are provided at the bottom ends of both the main and auxiliary comb teeth, and the main and auxiliary comb teeth mesh with each other. Through the arrangement of the main comb teeth, auxiliary comb teeth, and anchor plates, the entire assembly is formed by integral casting and welding. This allows for only one welding of the anchor plates and one-time overall concrete pouring on-site, resulting in high overall strength and greater convenience and speed in installation. Furthermore, the boltless connection eliminates longitudinal displacement and shearing when vehicles pass longitudinally, ensuring the stability of the device and improving its durability and reliability.

This invention provides a floating pusher shovel and pusher machine, including a shovel holder and blades; the blades are movably mounted within the shovel holder and, in conjunction with a floating fixing mechanism, can rise and fall within a certain height range, preventing rigid impact between the shovel and supporting structures such as ship plates when it descends, thus providing effective protection. Furthermore, this floating fixing mechanism is implemented using a purely mechanical structure, requiring no additional external wiring or piping, resulting in good integration.

The invention provides a cleaning module and cleaning equipment. The cleaning module comprises a mounting body, a cleaning mechanism and a driving mechanism. The cleaning mechanism is movably mounted on the mounting body. The driving mechanism comprises a driving piece, a rotating piece and an idle stroke assembly. The driving piece is installed on the installation body and is in transmission connection with the rotating piece. The idle stroke assembly is rotationally connected with the rotating piece and is in transmission connection with the cleaning mechanism. The rotating piece is provided with a first transmission part. The idle stroke assembly is provided with a second transmission part. The second transmission part and the first transmission part abut against and are matched in the circumferential direction of the rotating piece. According to the cleaning equipment, in the process of cleaning an uneven to-be-cleaned surface or crossing obstacles, the cleaning mechanism is subjected to upward external force, and due to the fact that the first transmission part and the second transmission part are in one-way abutting fit, the first transmission part cannot hinder the second transmission part from rotating towards the side away from the first transmission part; the cleaning mechanism can freely float and lift to adapt to the height change of the to-be-cleaned surface, and the obstacle crossing performance of the cleaning equipment is improved.

This invention provides a mass production machining device for door pillars, belonging to the field of door pillar mass production machining technology. It includes a base, with mounting brackets mounted on the top of the base. The mounting brackets have equidistant first limiting grooves and equidistant mounting grooves on their tops. Four mounting brackets are equidistantly arranged on the base, and one mounting bracket located on one side edge of the base has equidistant first limiting blocks on its top. This invention, by setting up an auxiliary positioning mechanism and a limiting and fixing mechanism, allows the eight first sliding grooves to be quickly positioned to the machining position on the top of the base in one go, avoiding multiple alignment adjustments and improving positioning efficiency. Furthermore, the limiting and fixing mechanism further limits and fixes the transported profile body, ensuring that the profile body remains stable, does not shift, and does not shake during processing, ensuring consistent processing benchmarks.

The utility model discloses a material compacting device of loader, including compaction device, the bottom surface fixed connection of compaction device has the connecting disc, the bottom surface fixed mounting of connecting disc has the mounting disc, the bottom surface fixed connection of mounting disc middle has the thread bush, the inside thread connection of connecting sleeve has the compaction board, still include: the both sides surface symmetrical of thread bush is provided with the fixed assembly that penetrates, wherein, the fixed assembly that penetrates includes the connecting sleeve fixed connection with thread bush, wherein, the inside fixed assembly that penetrates is connected with the thread penetration rod, the both sides surface sleeve of thread penetration rod is equipped with rubber ring, one side surface of rubber ring is fixedly connected with connecting sleeve, through setting up the fixed assembly that penetrates, when can be more convenient to the compaction board replacement, can make to the compaction board replacement speed to a certain extent to improve to can, thereby reduce the downtime and the increase of time cost.

The utility model belongs to the technical field of elevators, and particularly relates to an elevator safety protection device which comprises an elevator shaft, the elevator shaft is provided with an elevator car through a supporting piece, the lower end of the elevator car is fixedly connected with a first impact plate, and a base of the elevator shaft is in contact with an installation base. Fixing lugs are fixedly connected to the left side and the right side of the mounting seat, bolts are movably connected to the interiors of the fixing lugs, the bolts are in threaded connection with a base of the elevator shaft, clamping grooves are formed in the surfaces of the bolts, and end plates are in contact with the end faces of the sides, away from the bolts, of the fixing lugs. According to the scheme, through the arrangement of the first impact plate and the second impact plate, rigid impact can be conducted on the elevator car falling accidentally, under the action of structures such as the first hinge seat, the second hinge seat, the hinge plate, the first spring and the second spring, the impact force can be released, then the elevator car is effectively protected, and the rigid impact problem of the elevator car is avoided.

The utility model relates to a kind of winding equipment for CPP film, relate to film production technical field, including frame, motor being set on frame, winding roller for driving film winding driven by motor, double-layer compression roller for flattening film is set on frame, it is characterized by: frame is provided with edge curling flattening mechanism, edge curling flattening mechanism includes connecting sleeve, the ball abutting in connecting sleeve, the abutting plate for supporting film is set on frame, longitudinal telescopic component for driving ball to press film is set on abutting plate, and horizontal telescopic piece for driving ball horizontal movement is set between connecting sleeve and longitudinal telescopic component. The utility model can pass through edge curling flattening mechanism, before film enters double-layer compression roller, to the preliminary flattening and correction of edge curling portion, by pre-treatment edge curling, can prevent edge curling portion from being excessively extruded when entering compression roller, to avoid edge curling problem deterioration.

This utility model relates to the field of steering axle technology and provides a steering buffer device for a forklift steering axle. It includes a steering axle body and a wheel hub, as well as a steering drive component, a shut-off valve, and a limiting plate. The steering drive component is installed on the outer wall of the steering axle body, and the shut-off valve is installed on the inner wall. Rotary sleeves are rotatably fitted at both ends, and these sleeves are connected to the side walls of the wheel hub. A limiting plate is installed on the side of the sleeve closest to the shut-off valve. The steering drive component drives the sleeves to rotate, causing the limiting plate to contact or move away from the shut-off valve to cut off or open the oil circuit. This buffer device can effectively buffer when the forklift is turned to its limit position, reducing wear on parts and improving operational safety and comfort.

This invention belongs to the field of automated assembly and provides a double-sided tube insertion machine, including a frame, an assembly mechanism, a material transfer mechanism, a guiding mechanism, a pressing mechanism, a flipping mechanism, and a transposition mechanism. Compared with the prior art, the advantages of this invention are that the coordinated cooperation of the limiting block and the anti-detachment block ensures that multiple plugs arranged in an array are accurately and stably filled into the feeding channel, and improves the smoothness and orderliness of plug conveying. In addition, the design of the fixed guide wheel group and the moving guide wheel group not only provides stable guidance during insertion, but also allows the moving guide wheel group to move away from the fixed guide wheel group along the inclined direction, cleverly releasing the constraint force after the steel pipe is inserted into place, effectively avoiding the jamming phenomenon caused by excessive constraint force during steel pipe insertion, ensuring assembly quality and assembly smoothness, improving the smoothness and accuracy of steel pipe insertion into the assembly hole, and enabling the pallet to complete the flipping and position adjustment required for double-sided assembly without manual intervention.

The utility model discloses a kind of elevator head module tray adsorption mechanisms, it is related to material adsorption technical field, including lifting cylinder, the output end of the lifting cylinder is fixedly connected with connecting piece, the elevator head module tray adsorption mechanism;By setting the link plate of bar-shaped through-passage on both sides of connecting plate, slidingly setting air pipe and hose, using gas supply to blow off hardware plate material surface foreign matter, significantly improve the firmness of suction cup adsorption;First limiting plate, first spring and second limiting plate are set, the elastic limiting and buffer of air pipe are realized, avoid rigid impact;Second spring is set in the lower end of hose, and hardware plate material is contacted and compressed in lifting process, play good buffering effect;Fixed button is threadedly connected with air pipe, air pipe position is conveniently adjusted and fixed;Groove is opened in both sides of hose, improve airflow velocity when compression deformation, enhance dust removal effect.The overall structure is simple, convenient to operate, effectively improve paving material precision and work efficiency.

The invention discloses a concrete pump pipe damping support and a using method thereof. The damping support comprises a first supporting frame and a second supporting frame, the first supporting frame and the second supporting frame are detachably connected and spliced into an annular hole sleeve structure, pump pipe supports are arranged on the inner side of the first supporting frame and the inner side of the second supporting frame through damping springs, and an annular pipe sleeve structure is spliced between the opposite pump pipe supports. The using method adopts the damping support and comprises the following steps that the first supporting frame and the second supporting frame are placed in preformed holes of a building body, the first supporting frame and the second supporting frame are detachably connected and spliced into an annular hole sleeve structure, and the opposite pump pipe brackets are spliced into an annular pipe sleeve structure; the concrete pump pipe in the pipe sleeve structure is buffered and damped through the damping spring between the supporting frame and the pump pipe bracket. The damping device has the beneficial effect that through the synergistic effect of multi-directional spring damping and notch directional energy release, the excellent damping effect is achieved.

The application relates to a wheel-side speed reducer planetary gear shaft end face turning device, which comprises a lathe seat, the upper end of the lathe seat is provided with a rotary cover, the upper end of the lathe seat is provided with a longitudinal feed box, and the rotary cover is provided with a synchronous automatic locking mechanism. The feeding movement of the longitudinal feed box is transmitted to a wedge-shaped cover through a driving rack, an incomplete gear, a pull rod and a moving frame, and is converted into synchronous radial clamping of multiple sector clamping blocks through cooperation between the wedge-shaped cover slope and the rollers, so that the pure mechanical follow-up locking function that feeding is locking and then unloading is loosening is realized. In the transmission chain, the tooth length of the incomplete gear corresponds to the clamping stroke, and the toothless groove section corresponds to the stable cutting stroke, so that the clamping action is automatically disconnected after the transmission chain is quickly completed in the initial feeding stage, wear and heat caused by long-time meshing of the gear and the rack are avoided, and the stability of the clamping force is prevented from being reversely affected by slight feeding fluctuation.

This invention discloses a vibration-damping check valve, belonging to the field of check valve technology, which solves the problem of large opening and closing vibration in traditional swing check valves. The invention includes a valve body, a main valve cover, an inlet chamber, an outlet chamber, a valve seat, a rocker arm, and a valve disc. A liftable baffle is provided on the left side of the valve seat, and a media-driven drive structure is installed on the upper left of the valve body. The drive structure includes a drive chamber, a drive plate, an anti-rotation drive rod, a drive sleeve with a helical drive groove, a gear pair, and a screw. The linear motion of the drive rod is converted into rotational motion by the drive sleeve, driving the baffle to rise and fall smoothly. A buffer plate is hinged to the lower part of the baffle, forming a buffer mechanism with a buffer cone and a buffer spring. An overflow check valve is provided at the upper end of the valve seat, connecting the closed chamber and the outlet chamber. This invention, through baffle flow control, multi-stage buffering, and overflow pressure relief, slows down the opening and closing speed of the valve disc, eliminates vibration and water hammer, prevents loosening of connecting parts, improves sealing reliability and service life, and is suitable for backflow prevention scenarios in large-diameter, high-pressure pipelines.

This invention discloses a vibration-damping check valve, belonging to the field of check valve technology, which solves the problem of large opening and closing vibration in traditional swing check valves. The invention includes a valve body, a main valve cover, an inlet chamber, an outlet chamber, a valve seat, a rocker arm, and a valve disc. A liftable baffle is provided on the left side of the valve seat, and a media-driven drive structure is installed on the upper left of the valve body. The drive structure includes a drive chamber, a drive plate, an anti-rotation drive rod, a drive sleeve with a helical drive groove, a gear pair, and a screw. The linear motion of the drive rod is converted into rotational motion by the drive sleeve, driving the baffle to rise and fall smoothly. A buffer plate is hinged to the lower part of the baffle, forming a buffer mechanism with a buffer cone and a buffer spring. An overflow check valve is provided at the upper end of the valve seat, connecting the closed chamber and the outlet chamber. This invention, through baffle flow control, multi-stage buffering, and overflow pressure relief, slows down the opening and closing speed of the valve disc, eliminates vibration and water hammer, prevents loosening of connecting parts, improves sealing reliability and service life, and is suitable for backflow prevention scenarios in large-diameter, high-pressure pipelines.

The application relates to an intelligent bidirectional stress adjusting external fixing support, an adjusting rod, a sliding matching shaft sleeve, a connecting screw sleeve, a fixed rod screw sleeve, a fixed rod, a cable transmission assembly, an electric drive assembly and a controller. One end of the fixed rod is connected to the sliding matching shaft sleeve, the sliding matching shaft sleeve is slidably sleeved on the adjusting rod, and the lower end of the sliding matching shaft sleeve is tightly connected with the connecting screw sleeve. The lower end of the connecting screw sleeve is threadedly connected with the fixed rod screw sleeve, and the fixed rod screw sleeve is fixed to the fixed rod through a pin. The electric drive assembly is connected with the adjusting rod through the cable transmission assembly, and the controller is connected with the electric drive assembly. The adjusting rod and the fixed rod are connected to fix a bone segment. The controller can drive the cable transmission assembly to pull the adjusting rod to slide along the axial direction of the adjusting rod through the electric drive assembly, and the adjusting rod is away from or close to the fixed rod, so that axial stress is given to a fracture end. The application has the beneficial effects that the automatic regulation and control of the stress of the fracture end are realized, manpower is saved, the safety and compliance in the treatment process of patients are improved, and key technical support is provided for the precise development of the treatment of the orthopedic external fixing support.

The application discloses an automatic welding seam detection system based on cup convex machines and a detection method thereof, and belongs to the technical field of welding seam detection. The system comprises a safety room, a feeding conveyor belt, a discharging conveyor belt, a visual monitoring device, a grabbing device and at least two cup convex machines arranged on the two sides of the feeding conveyor belt; the grabbing device responds to the visual signal and alternately moves and delivers the sample to the cup convex machines on the two sides for parallel detection. The grabbing device is provided with an electromagnetic adsorption assembly and an elastic buffer assembly, and the cup convex machine is provided with a sample piece supporting plate with a avoiding notch, an electromagnetic fixing piece and an anti-rotation lever base. The application can improve the detection efficiency, positioning accuracy and equipment operation stability.

The present invention provides an elastic contact structure of a socket contact, in which a rotary block is arranged on the outside of the spine of the plug, a moving contact is arranged on the outside of the rotary block, and a static contact is arranged on the outside of the moving contact. The upper end of the rotary block is pivotally fixed, and a protruding force-bearing part is provided between the upper and lower ends of the rotary block on the side close to the spine, and the lower end of the rotary block extends in a direction away from the spine; the moving contact is a metal sheet body, which has an elastic arm formed by bending and extending upward from a horizontal bottom, and the top of the elastic arm abuts against the side of the lower end of the rotary block away from the spine, and a moving contact is arranged between the upper and lower ends of the elastic arm; the static contact is a metal sheet body, which has two legs arranged separately, and there is a suspended part between the two legs, and a static contact is arranged in the suspended part. The present invention can achieve elastic contact between contacts, thereby avoiding rigid impact, and can improve the operational feel of inserting the plug, and extend the service life of the socket.

The invention discloses an acid-adding device for a lead-acid battery, and relates to the technical field of lead-acid battery acid-adding tools, comprising a processing table, a stand arranged at the rear end of the top of the processing table, and a mounting plate arranged at the upper part of the stand, wherein a lifting frame is arranged below the mounting plate, a buffer seat is fixedly connected to the bottom end of a guide tube, an adjusting component is arranged inside the fixed tube, a driving component is arranged inside the rectangular strip opening, a supply cylinder is arranged at the rear end of the fixed plate, a pumping machine is arranged at the top of the fixed plate, and a liquid injection mechanism is arranged inside the sliding opening; the invention facilitates the internal exhaust of the battery before acid is added to the lead-acid battery through the cooperation of the lifting frame and the liquid injection mechanism as well as the supporting plate and the driving component, and can improve the smoothness of the lead-acid battery when adding dilute sulfuric acid and the effect of preventing liquid from accumulating in the pipeline; improve the efficiency of the lead-acid battery when adding acid; through the cooperation of the liquid injection mechanism and the lifting frame, the application range and practicality of the device are improved, and the anti-leakage effect at the acid adding port can be improved when adding acid to the lead-acid battery.

The present application provides a kind of vertical steering cam mechanism and profile curve generation method, belong to logistics automation technical field.For the problems of large pressure angle fluctuation, significant dynamic impact, design dependent experience and poor adaptability of high speed and high load of existing shuttle car vertical steering mechanism, the present application adopts kinematics reverse method, by constructing mathematical model, establishes global and cam motion coordinate system, sets rotation ratio n, guide rod length L and other parameters, analyzes cam-follower relative motion (coordinate translation and rotation transformation), generates cam groove track point cloud, calculates and controls pressure angle (peak value ≤45 °), completes optimization verification by combining three-dimensional modeling and dynamics simulation, realizes the accurate design of cam groove profile curve.The present application can make the shuttle car follower complete 90 ° steering stably, effectively inhibit the self-locking and dynamic impact of mechanism, shorten the design cycle, improve the operation reliability under high speed and high load working condition, meet the frequent vertical steering demand of automatic warehouse shuttle car.

The utility model discloses a filter tip make -up machine shield, including shield body and cover, the cover hinged connection is arranged in the one side of shield body, the inboard wall fixed setting of shield body has the proximity switch for closing filter tip make -up machine work, and set up in the inboard top of shield body has the switch press mechanism for pressing proximity switch, and switch press mechanism is located the just above proximity switch and switch press mechanism can go up and down telescopic, the inboard of cover is provided with the switch press mechanism telescopic of driving the toggle piece of switch press mechanism. The utility model discloses a filter tip make -up machine shield, so that can open the shield while shutting down filter tip make -up machine, thereby avoided the illegal operation of operator.

The invention discloses a dumper power assembly redundant suspension protection device, a monitoring system and a graded early warning control method.The dumper power assembly redundant suspension protection device comprises at least one redundant suspension assembly, and the redundant suspension assemblies are correspondingly installed on an engine and / or a gearbox and are arranged close to an engine suspension and / or a gearbox suspension; an original suspension fixing hole position of an engine or a gearbox is not shared, and the protection device is used for providing protection when engine suspension and / or gearbox suspension are / is overloaded or failed; the redundant suspension assembly comprises a redundant supporting leg, a redundant shock absorber, an adjusting gasket and an adjusting washer. The redundant suspension assembly does not intervene in work when the vehicle runs normally, interference to original adjustment parameters of the power assembly suspension is avoided fundamentally, it is ensured that the NVH performance of the vehicle is kept at the original level, and both upgrading practicability and driving and riding comfort are considered.

This application discloses an adaptive ejection recoil, a hydraulic system, and a working method, relating to the field of ejection control. The ejection recoil includes a lower housing, an upper housing, and a floating cylinder assembly. The floating cylinder assembly includes multiple floating cylinders disposed between the lower and upper housings. The hydraulic system of this application includes an oil pump unit, a control valve assembly, an accumulator, and a switching valve. The working method of this application is divided into three steps. During the lifting stage, the different cross-sectional areas of the rod-side and rodless-side chambers of the floating cylinders are used to drive the piston rod to lift the upper housing to a state that is in contact with the external storage ejection box. During the flexible support stage, a structure similar to a hydropneumatic spring is formed between the rodless-side chamber of the floating cylinder and the accumulator, which can adapt to minor unevenness of the ground. During the rigid support stage, the rodless-side chamber of the floating cylinder is disconnected from the accumulator, and the floating cylinder changes from a flexible support state to a rigid locking state, reliably transmitting the recoil force to the ground.