151results about How to "Prevent derailment" patented technology

The invention discloses mechanical fermentation and pile-turning integrated equipment for Pu'er tea. According to the invention, mechanization and cleaning of fermentation of the fermented Pu'er tea can be obviously improved, modern processing of the fermented Pu'er tea is realized, and the current situation of traditional and backward fermentation of the fermented Pu'er tea is changed. According to the scheme, the integrated equipment comprises a ground rail and a second transverse paver, the ground rail and the second transverse paver are arranged in parallel, and storage boxes are arranged in the ground rail and the second transverse paver. Tea leaves can be effectively scattered and mixed through rotation of a turning knife and a second deblocking knife; according to the tea leaf processing device, the tea leaf processing efficiency and quality are improved, the uniformity of the tea leaves is ensured, through control of the first servo motor, the second servo motor, the third servo motor, the fourth servo motor and the fifth servo motor, the automatic processes of scattering, conveying, scattering again, collecting and pile turning of the tea leaves are achieved, manual intervention is reduced, and the working efficiency is improved.

The invention provides an intelligent control system and an intelligent control method of a bridge girder erection machine, and relates to the technical field of bridge construction application, the intelligent system comprises a plurality of variable frequency controllers which are respectively installed on a front support and a middle support, a front crown block and a rear crown block, and a rear support, the variable frequency controller controls the rotating speed of the transverse moving motors of the front support and the rear support, the rotating speed of the walking motors of the front crown block and the rear crown block and the rotating speed of the front and rear running motors of the middle support and the rear support according to a control instruction of the PLC control system. The rotating speed of the motor is controlled through the frequency converter, so that the left-right moving synchronism of the front support and the middle support of the bridge girder erection machine is effectively controlled, the walking synchronism of the front crown block and the rear crown block on the left and right wheels on the track is effectively controlled, and derailment caused by inconsistent speeds of the wheels on the two sides of the track is avoided.

The invention relates to a new energy automobile battery pack battery replacing and transferring device which comprises a transferring box and further comprises two bearing frames and a battery replacing device. A displacement adjusting device; an abdicating port; the two sides of the bottom of the battery pack bearing frame are rotationally connected with supporting shafts, and the surfaces of the supporting shafts are sleeved with rolling wheels; and the positioning assembly comprises a lock catch, and the lock catch is used for locking the supporting shaft. In the process of replacing the battery pack on the transfer box, the battery pack does not need to be directly disassembled and assembled, disassembly and assembly of the battery pack and the transfer box are achieved by directly disassembling and assembling the movable battery pack bearing frame and the transfer box, the battery pack is supported by the movable frame body all the time, convenience and rapidness are achieved, and the disassembly and assembly difficulty is reduced.

The invention relates to the technical field of air rail transportation, in particular to a power type bogie based on a box girder type base and an induction gap adjusting method. The power type bogie comprises a box girder type base, the box girder type base comprises a suspension gap located at the bottom and communicated with an inner cavity, first rails located on the two sides of the suspension gap are arranged at the bottom of the box girder type base, and an induction magnetic stator is fixedly arranged on the inner side of the top of the box girder type base. The bogie assembly comprises a bottom frame, a motor support arranged on the bottom frame and walking wheels arranged on the bottom frame; the top of the motor support is provided with a motor rotor having an induction gap with the induction magnetic stator, and the motor rotor is used for driving the bogie assembly to move under the action of magnetic force generated by the motor rotor and the induction magnetic stator. And the gap adjusting device is used for adjusting the size of the induction gap. A semi-closed base can be formed through the box girder type base, a bogie and other components are arranged in a box girder cavity, maintenance is convenient, the influence of weather is small, and the service life can be prolonged.

The invention provides a piston type shielding door, and particularly relates to the technical field of radiation shielding, the piston type shielding door comprises a door frame, and the door frame is mounted on a wall body. The upper portion of the side, facing the door frame, of the door body and the left side and the right side, close to the door frame, of the door body are concave inwards to form stepped structures, the moving direction of the door body is perpendicular to the wall, and the door frame is matched with the door body to form labyrinth seal. And the sliding device is fixedly mounted at the bottom of the door body. And the bearing device is mounted on the ground at the bottom of the door body, and the bearing device is interactively matched with the sliding device. And the driving device is fixedly installed on the side, away from the door frame, of the door body, and the driving device is used for driving the door body to move on the bearing device through the sliding device. According to the piston type shielding door, the technical problems that a shielding door is poor in shielding effect, high in construction requirement and serious in abrasion of internal parts are solved, and the piston type shielding door is complete in shielding, low in construction difficulty and long in service life.

The utility model discloses an oil-water separator with a filtering device, and relates to the field of oil-water separation equipment, the oil-water separator comprises a separation mechanism and a sedimentation mechanism, the separation mechanism comprises a treatment box, the oil-water separator is provided with an aeration mechanism, a water inlet bin receives and temporarily stores an oil-water mixture, it is ensured that the oil-water mixture uniformly flows into a subsequent separation bin, and the oil-water separation efficiency is improved. An aeration mechanism is arranged at the bottom of a partition plate of a water inlet bin, when gas is injected through an aeration opening, a large number of tiny bubbles are generated, the bubbles make contact with an oil-water mixture in the rising process, and the oil-water separation effect is improved. According to the present invention, the gas is introduced into the water inlet chamber, the adhesion action is utilized to carry tiny oil drops to float, such that the oil drop separation is accelerated, the separation time is shortened, the aeration mechanism ensures that the gas is uniformly dispersed in the water inlet chamber, and especially the wedge-shaped surface increases the contact area of the gas and the mixture, and improves the oil drop capturing efficiency.

The invention discloses a riveting tool for a frame cross beam, which comprises two oppositely arranged positioning plate assemblies and two oppositely arranged positioner connecting plates which are encircled to form a rack and are used for positioning and fixing a bent connecting plate and the cross beam so as to overturn along with a positioner, wherein the two ends of one positioning plate assembly are connected with the sliding rails on the two positioner connecting plates, the positioning plate assemblies are used for fixing cross beams of different sizes through sliding adjustment, and rivet anti-falling assemblies are arranged on the positioning plate assemblies and used for abutting against rivets between the bending connecting plates and the cross beams so as to prevent the rivets from falling off when the rack turns over. The riveting tool for the frame cross member has the advantages of being simple in structure, high in applicability, stable in riveting quality, high in percent of pass, high in riveting efficiency and the like.

The utility model belongs to the technical field of buildings, and particularly relates to an automatic door and window pulley assembly which comprises a U-shaped plate, a self-adaptive pulley mechanism is installed in the U-shaped plate and comprises a round rod fixed to the inner side of the U-shaped plate, the outer side of the round rod is rotationally connected with a round pipe, and connecting blocks are fixed to the two sides of one end of the round pipe. A rectangular plate is fixed to the connecting block, a sliding block is slidably connected into the rectangular plate, an elastic column is installed at the top of the sliding block and located in the rectangular plate, a connecting plate slidably connected with the rectangular plate is fixed to the bottom of the sliding block, a round block is fixed to the bottom of the connecting plate, and a pulley body is rotationally connected to one side of the round block. According to the utility model, when an obstacle appears on the door and window track, the pulley main body can realize automatic adjustment of the gap between the pulley main body and the track so as to cross the obstacle and avoid forced collision with the obstacle, thereby effectively preventing the door and window from derailing or preventing the pulley main body and the track from being damaged.

The utility model provides a self-lubricating rolling bearing, which relates to the field of bearings and comprises a bearing outer ring and a bearing inner ring, a plurality of balls are placed between the bearing outer ring and the bearing inner ring, a plurality of notches are arranged on the inner wall of the bearing outer ring, two slide rails are fixedly connected to the front and back of the bearing outer ring respectively, and the slide rails are arranged in the notches. The front face and the back face of the bearing outer ring are each provided with two clamping rings, the multiple clamping rings are slidably connected with the sliding rails close to the clamping rings, positioning grooves are formed in the side faces, away from the outer ring bearing, of the multiple sliding rails, and the multiple positioning grooves completely penetrate through the clamping rings close to the positioning grooves. According to the self-lubricating rolling bearing, the gap between the bearing outer ring and the bearing inner ring can be sealed through the installation clamping ring, the situation that grease overflows from the gap to aggravate grease consumption is avoided, the service life of the grease is prolonged, and the situation that balls between the bearing outer ring and the bearing inner ring are derailed can be avoided; the purpose of limiting the balls is achieved, and the phenomenon that the balls derail is avoided.

The invention discloses an unmanned aerial vehicle anti-swing mechanical claw, and relates to the technical field of unmanned aerial vehicle grabbing, and the unmanned aerial vehicle anti-swing mechanical claw comprises a composite mechanism. According to the anti-swing mechanical claw for the unmanned aerial vehicle, through the design of a composite mechanism, a motor controls a rope in an electric hoist to stretch out and draw back, the length of the rope is conveniently adjusted, the application range is expanded, the electric hoist collects the rope to drive a grabbing mechanism to ascend, and a connecting block is in butt joint with a processing mechanism, so that the effect of fixing components is achieved; the anti-swing device has the advantages that shaking in the flying process is reduced, the stability of the device is improved, so that the anti-swing effect is achieved, the stability of material transportation is improved, the conveying efficiency is improved, materials are clamped through the grabbing mechanism in an electric shrinkage grabbing mode, the material fixing effect is achieved, and the friction force on the rope is increased through the friction mechanism; therefore, the effect of constant-speed lifting is achieved, the stability of equipment is further improved, meanwhile, mechanical faults are avoided, and parts are prevented from derailing.

The invention discloses an external pressure load detection device and method for a resin concrete pipe product, and relates to the technical field of load detection, and the external pressure load detection device comprises a composite mechanism. According to the external pressure load detection equipment and method for the resin concrete pipe product, through the design of a composite mechanism, a pipeline is placed on a rotating column, and a motor drives the rotating column to rotate through a connecting belt, so that the vertical degree of the pipeline and the quality of the pipeline are detected, and when the rotating column rotates, a friction mechanism is pressed downwards to be attached to the pipeline; the friction mechanism is matched with the rotating column in a friction mode, the shaking space of the pipeline is limited, pipeline derailing caused by too high rotating speed is avoided, the working efficiency is improved, when the friction mechanism makes contact with the surface of the pipeline, skin chippings are easily generated, the chip removal effect is enhanced by forming the strip-shaped grooves and slotting, impurity attachment is reduced, the rotating effect is prevented from being influenced by excessive adhesion, and the heat dissipation effect is improved. Local overheating of the structure is avoided, and equipment performance is prevented from being affected.

The utility model provides a rolling device of plastic extrusion production line, including: rolling device, clamping device and conveying device, rolling device includes: rolling frame, servo motor, hold-down mechanism and rolling mechanism, servo motor is on rolling frame, servo motor output end installs rolling mechanism, rolling mechanism can be rotatingly installed on rolling frame, the rolling mechanism is equipped with the clamping device, the clamping device is equipped with the conveying device. A conveying device is arranged on one side of the winding frame and comprises a guide rail, a movable bearing device, a blocking mechanism and an upward guiding assembly, a clamping device is installed above the movable bearing device and comprises a base, an installation rod and a supporting clamping mechanism, and the base is connected with the top of the movable bearing device through the installation rod. According to the winding device of the plastic extrusion production line, the accurate clamping action is achieved through the linkage shaft and the clamping arms, the opening and closing state of the clamping arms can be conveniently and rapidly adjusted through the design of the telescopic adjusting rods, and therefore plastic rolls are efficiently grabbed and released, and the stability of the plastic rolls in the transferring process is guaranteed.

The utility model relates to the technical field of crank connecting structures, and discloses a motorcycle crank connecting structure which comprises a right crank and a left crank, the right crank and the left crank are mutually symmetrical, the opposite sides of the right crank and the left crank are provided with the same crank pin shaft, and the outer wall of the middle of the crank pin shaft is sleeved with a transmission connecting rod. And reinforcing rods which are symmetrically arranged are fixedly connected to the outer wall of one side of the transmission connecting rod. The reinforcing rods which are symmetrically arranged are fixedly installed on the transmission connecting rod, the annular grooves are formed in the two second bearings, the connecting blocks are connected to the inner walls of the annular grooves in a sliding mode, and the two reinforcing rods are fixedly connected to the two connecting blocks respectively, so that the effect of further stably supporting installation of the transmission connecting rod can be achieved; the phenomenon that the transmission connecting rod deviates left and right on the crank pin shaft is avoided, long-time stable work of the transmission connecting rod is facilitated, stable operation of the transmission connecting rod is guaranteed, and the transmission connecting rod is practical and suitable for wide application and popularization.

The utility model relates to a folding door with good stability belongs to folding door technical field, this folding door with good stability, including installation component, the both sides of inside front surface one end of installation component are all slidably connected with movable door leaf subassembly, the middle position of two movable door leaf subassembly both sides is all fixedly installed the fixed component that inserts to the inside of installation component, the utility model discloses the structural design of installation component can effectively prevent the derailment phenomenon when folding door later stage push -and -pull, to promote the stability of folding door later stage push -and -pull operation, through the sliding connection design of installation sliding block and guide slide groove, and then cooperate the sliding connection limit of limiting slide and limiting sliding block, namely can improve the stability of installation sliding block inside guide slide groove sliding later stage, effectively prevent the derailment phenomenon later stage, compared with the service life of traditional roller and sliding rail sliding connection is longer, and the stability of sliding is more.

The utility model discloses a kind of anti derailment and automatic correction's elevator sill guiding device, it is related to elevator sill technical field.The utility model a kind of anti derailment and automatic correction's elevator sill guiding device, including sill, the lower end surface of the sill is provided with supporting device, the inside of the supporting device is provided with connecting device, the upper end surface of the supporting device is provided with the correction device that is carried out automatic correction to elevator car door.Supporting device is fixed in elevator shaft inner wall, then the sill is fixedly installed on supporting device, when the single support end of supporting device is loose when using, the overall supporting device can be connected by connecting device, to improve the stability of the overall supporting device when using, to prevent the derailment of the sill when using, the car door sliding on the sill is limited and buffered by correction device when sliding, to realize the correction when the car door is offset when using.

The utility model provides a punching device for an automobile door frame, which belongs to the technical field of automobile door frame punching and comprises a support frame, a clamping device and a punching device, a punching platform is arranged in the middle of the support frame, a connecting plate is fixedly arranged on the upper surface of the punching device, a transverse sliding rail is arranged above the connecting plate, and a transverse sliding block is arranged in the middle of the transverse sliding rail. A first driver is arranged on one side of the transverse sliding rail, a longitudinal sliding rail is arranged on the lower surface of the middle of the supporting frame, a longitudinal sliding block is arranged in the middle of the longitudinal sliding rail, a clamping fixator is arranged on the lower surface of the longitudinal sliding block and connected with the upper surface of the transverse sliding rail, and a second driver is arranged on one side of the longitudinal sliding rail. The clamping device faces the punching platform, the electric telescopic rod can drive the clamping device to clamp the door frame through the telescopic driver, the longitudinal push rod is started to drive the longitudinal sliding block to move, the positions of the transverse sliding rail and the door frame are adjusted, and the transverse push rod is started to drive the transverse sliding block to move so that the connecting plate and the punching device can move transversely.

The invention relates to the technical field of building construction hanging baskets, in particular to an anti-rollover mounting method for a riding frame type hanging basket. According to the technical scheme, the anti-rollover hanging basket comprises an anti-rollover device used for installing the saddle-riding type hanging basket and further comprises a wall body used for assembling the anti-rollover device used for installing the saddle-riding type hanging basket and a hanging basket body, and the height of the hanging basket body is increased through pulling of a steel wire rope; comprising the following installation steps that 1, preparation before installation is conducted, specifically, an installation construction site is comprehensively investigated, and it is ensured that the ground of an operation area is flat and firm; 2, a saddle riding frame is installed; and step 3, debugging and detecting the equipment. The device can be suitable for flower stands, high parapet walls and roofs with narrow spaces and complex structures, the device is firm and stable in a bolt fastening mode, the structure is protected against damage, vertical linear loads are converted into face loads through the T-shaped steel to be transmitted to the structure, the bearing capacity of the structure is greatly improved, and the structure is protected against damage easily.

The utility model discloses a prefabricated box girder top plate steel bar binding movable trolley which comprises a top plate binding jig frame, the top plate binding jig frame is vertically supported by channel steel, channel steel rail supporting beams are arranged on the left side and the right side of the top of the top plate binding jig frame, and angle steel rails are fixed to the channel steel rail supporting beams. Meanwhile, a trolley body is slidably connected to the angle steel rail; top plate steel bar bodies are symmetrically fixed to the two sides of the middle of the top face of the angle steel rail, and clamping grooves are formed in the tops of the top plate steel bar bodies at equal intervals. The trolley further comprises supporting legs symmetrically welded and fixed to the bottom of the trolley body, and three walking wheels are connected to the bottoms of the supporting legs at equal intervals through bearings. The prefabricated box girder top plate reinforcing steel bar binding movable trolley can move in the reinforcing steel bar intersection binding direction in the construction process, an operator does not need to walk and work on reinforcing steel bars, after prefabricated box girder top plate reinforcing steel bars are installed, a reinforcing steel bar cage can be hoisted by hoisting the movable trolley, and operation is convenient and fast.

The present invention discloses an automatic detection device for the disengagement of filter plates of a filter press, comprising a filter press body, a conveying mechanism, a PLC controller, a filter plate body and an electric lifting rod, wherein a conveying mechanism is installed at one end of the filter press body, a support frame is installed at the bottom end of the filter press body, a transmission mechanism is installed inside the filter press body, and a chain is arranged inside the transmission mechanism, a U-shaped frame is installed on the side wall of one side of the filter press body, and the U-shaped frame is sleeved on the outer wall of the chain, a plate pulling trolley is sleeved on the outer wall of the U-shaped frame, and a fixed frame is installed on the top of the plate pulling trolley. The automatic detection device for the disengagement of filter plates of a filter press determines whether the plate pulling trolleys on both sides of the filter plate body have proximity switches through a PLC controller, so as to confirm whether the plate pulling trolley is normally suspended, thereby facilitating a quick alarm to the operator to avoid the filter plate and the track from being pulled obliquely, causing danger to equipment and personnel.

The invention relates to the technical field of photovoltaic power generation, and discloses a photovoltaic power station operation and maintenance system, and the system comprises cable type track structures which are continuously disposed in a photovoltaic power station; the inspection vehicle is provided with a vehicle body, and the inspection vehicle is suitable for running on the cable type track structure so as to inspect all parts of the photovoltaic power station; the workbench is arranged on the vehicle body, and the workbench is suitable for rotating in a horizontal plane relative to the vehicle body; and the image acquisition device is rotationally arranged on the working table, and the image acquisition device is suitable for rotating along with the rotation of the working table to obtain video data and thermal imaging data of the photovoltaic power station. According to the invention, the inspection vehicle runs along the cable-type track structure and is combined with the rotatable and liftable image acquisition device, so that 360-degree dead-corner-free image or video information acquisition is realized, manual inspection is completely replaced, and time influence is avoided; and the operation and maintenance cost of the photovoltaic power station is obviously reduced.

The utility model provides a circular arc door guiding limit moving structure which comprises a door pocket, top rails and a second door body, the top of the door pocket is provided with a set of top rails used for limit moving of the first door body and the second door body, and the bottom of the door pocket is provided with a set of ground rails used for limit moving of the first door body and the second door body. The top rail fixing structure comprises a door pocket, the left side and the right side of the door pocket are respectively provided with a set of fixing frames used for being connected with a top rail in a limiting mode, and the cross section of the front side view of each fixing frame is of a rectangular structure. The supporting back frame and the adjusting rail are embedded through an I-shaped structure to ensure vertical precision, when the adjusting sliding seat moves up and down along the adjusting rail, the relative position of the supporting back frame and the arc rail is fixed through bolt holes, when the door body runs, the guide wheels roll along the curved surface of the arc rail, the limiting blocks are matched with the limiting layers to prevent derailing, and the ground rail and the top rail synchronously guide the door body to move horizontally.

The utility model relates to the field of tunnel transfer devices, in particular to a suspension type detachable self-walking transfer mechanism for a tunnel, which comprises a suspension track group, a V-shaped wheel group, a driving mechanism, a connecting frame, a suspension seat and a transfer box, the upper part of the suspension track group is erected on the tunnel; a V-shaped wheel set is installed on the suspension rail set and makes contact with the suspension rail set in a clamped and sliding mode. The V-shaped wheel grooves clamped with the V-shaped track body are formed in the V-shaped driving wheel and the V-shaped wheel body, during installation, the V-shaped driving wheel and the V-shaped wheel body are clamped on the V-shaped track body through the V-shaped wheel grooves, the derailing phenomenon can be effectively avoided, meanwhile, the side wheel shaft is installed on the bracket, the protective side wheel is arranged on the side wheel shaft, and the protective side wheel is arranged on the side wheel shaft. The protective side wheels penetrate into the rail grooves and walk in the rail grooves, and stable operation and safety of the transfer mechanism can be effectively guaranteed.

The utility model discloses a textile fabric winding device, which belongs to the technical field of textile fabric equipment and comprises a device frame, a clamping plate and a winding roller, the upper end of the device frame is fixedly connected with the clamping plate, the device frame and the clamping plate are both provided with semicircular grooves, and the winding roller is placed in the semicircular clamping groove at the upper end of the device frame. Then the winding roller is fixed through a clamping plate at the upper end of the device frame, the winding roller is prevented from derailing, after the winding roller is placed, a first motor at the upper end can be driven to move towards the winding roller through a supporting plate placed on the side edge of an adjusting support, and a transmission shaft fixedly connected with the upper end of the first motor is inserted into a shaft groove formed in the side edge of the winding roller; and the protruding block is arranged on the outer side of the transmission shaft in a surrounding mode, and the groove of the protruding block is formed in the shaft groove, so that after the transmission shaft and the shaft groove are arranged in an embedded mode, the first motor can drive the transmission shaft to rotate so as to drive the winding roller to rotate, workers can rapidly replace the winding roller, and meanwhile winding work can be guaranteed.

The utility model relates to the technical field of shot blasting machines, in particular to a trolley walking track shot material push plate mechanism which comprises a trolley rack and a walking track, a shot blasting machine rotary table is movably installed at the top of the trolley rack, and a rotary table driving assembly matched with the shot blasting machine rotary table is arranged in the trolley rack. Walking wheels are movably installed on the front portions and the rear portions of the left side and the right side of the trolley rack, the trolley rack is erected on a walking track through the walking wheels, push plate assemblies located at the front ends and the rear ends below the walking wheels are arranged on the trolley rack, and the two sets of push plate assemblies are distributed at the front ends and the rear ends of the walking wheels in a mirror image mode. According to the trolley walking track shot pushing plate mechanism, the pushing plate assemblies are arranged at the advancing end and the retreating end of the walking wheel, when the trolley rack moves, steel shots scattered on the surface of the walking track can be pushed away through pushing plates in the pushing plate assemblies, the situation that the steel shots influence rotation of the walking wheel is avoided, meanwhile, the situation that the walking wheel derails due to the fact that the steel shots are accumulated too high can be avoided, and the service life of the walking wheel is prolonged. And the safety is improved.

The utility model discloses a portal crane. The portal crane comprises two supporting columns which are vertically and symmetrically arranged, sliding grooves are formed in the opposite sides of the two supporting columns in the vertical direction of the supporting columns. The upper ends of the two supporting columns are connected with a cross beam; the beam is sleeved with a control module, and the control module can horizontally move in a reciprocating mode in the length direction of the beam. A chain capable of being wound and unwound is wound in the control module, and the bottom end of the chain extends out of the bottom of the control module and is fixedly connected with a lifting block; a lifting hook is fixedly mounted at the bottom of the lifting block; a limiting rod is sleeved with the lifting block in a sliding mode and is horizontally arranged, and the two ends of the limiting rod are inserted into the two sliding grooves correspondingly to be connected in a sliding mode; the lifting block can be driven by the control module to synchronously slide along the sliding groove in a reciprocating lifting mode along with the limiting rod. And the lifting hook can synchronously lift and move along with the lifting block. The lifting hook of the crane can be kept in a stable state in the lifting or translation process, and the conditions of swinging and shaking of the chain and the lifting hook are reduced.

The invention relates to the field of transportation, in particular to a circular tube rail transportation change gear. The device comprises a hanging seat, a hanging structure, a rotating wheel mechanism and an adjusting mechanism, the rotating wheel mechanism comprises a supporting part and a rotating wheel body, the middle of the supporting part is hinged to the hanging seat and can elastically slide left and right relative to the hanging seat, the rotating wheel body is rotationally arranged at one end of the supporting part, and the adjusting mechanism is arranged on the hanging seat and located below the supporting part. The end, away from the rotating wheel body, of the supporting part is supported. When the change gear moves to a corner, the adjusting mechanism pushes the end, away from the rotating wheel body, of the supporting part, so that the supporting part rotates in the direction close to the horizontal direction, the hanging seat is lifted in the rotating process of the supporting part, the overall gravity center of the device is lifted, the rotational inertia of the device during turning is reduced, and the stability of the device is improved. And meanwhile, a supporting barrel of the supporting part gets close to a supporting shaft, lubricating oil in the supporting barrel is extruded out to lubricate the rotating wheel body, abrasion is reduced, and the service life is prolonged.

The utility model discloses a sliding piece and a sliding assembly for an automobile sun-shading device and the sun-shading device. The sliding piece and the sliding assembly comprise an inserting part. The connecting plate is arranged at one end of the inserting part; the first clamping plate is arranged on the side, away from the inserting part, of the connecting plate, and the first clamping plate is perpendicular to the connecting plate; the second clamping plate is arranged on the side, away from the inserting part, of the connecting plate, the first clamping plate is perpendicular to the connecting plate, and the first clamping plate and the second clamping plate are arranged in parallel; the third clamping plate is L-shaped, the long side of the third clamping plate is parallel to the second clamping plate, and the short side of the third clamping plate is perpendicular to the second clamping plate; wherein a slide way is formed between the first clamping plate and the second clamping plate, and a passageway is formed between the second clamping plate and the third clamping plate. The device has the advantages of reducing derailing of the sliding piece and the guide rail, reducing shaking and guaranteeing sliding reliability and stability of the sliding piece on the guide rail.

The utility model discloses a lifeboat rope winding and unwinding structure, including main rotating arm, support arm, connecting cross arm, steel wire rope cable, support arm fixed connection is in the top of main rotating arm, and the center of connecting cross arm is fixedly connected with the other end of support arm, and the both ends of connecting cross arm are equipped with the limit ring, and the limit ring is equipped with the main pulley, and the symmetric reinforcement rib is equipped between connecting cross arm and support arm, and a group of auxiliary pulleys are equipped on connecting cross arm and reinforcement rib, and the junction of reinforcement rib and connecting cross arm, the junction of reinforcement rib and support arm are equipped with the deflection pulley, and the steel wire rope cable is connected through auxiliary pulley, deflection pulley and main pulley and is extended downward after passing through the limit ring and is connected with lifeboat. The utility model discloses a group of rotating arm and the combination of connecting cross arm, hoist lifeboat, and the structure is more simple, and the use is more convenient.

The utility model provides an anti-derailment flat car, which relates to the technical field of flat cars and comprises rails, the bottom end of a car body moves on the surfaces of the rails by means of wheels, an anti-derailment component is arranged at the bottom of the car body, and the car body is supported between the two rails by means of rollers in the anti-derailment component. The anti-disengaging assembly comprises a mounting base fixed to the bottom end of the vehicle body, a sleeve is detachably mounted on the surface of the mounting base, a sliding rod is arranged at the free end of the sleeve in a sliding and inserting mode, a connecting arm is fixedly connected to the free end of the sliding rod, a rolling wheel is rotationally connected to an end opening of the connecting arm, and a spring is arranged between the connecting arm and the sleeve. The vehicle body can walk on the rails by means of the wheels, and when the vehicle body derails, due to the fact that the idler wheels in the anti-falling assembly are supported between the two rails, the vehicle body is prevented from being separated from the rails.