497results about How to "Realize self-locking function" patented technology

The invention provides a reduction exoskeleton joint, which comprises a first limb and a second limb which are in rotary connection, and further comprises a reduction mechanism which is arranged between the first limb and the second limb, wherein the reduction mechanism is in charge of providing recovery force when the first limb and the second limb approach to an upright state so as to promote the joint to recover to the upright state, and the joint, under the circumstance of not being exerted with obvious torque, is kept under the upright state. The reduction mechanism can adopt magnetic attraction elements or wedge block-wedge groove structures and further comprises an elastic energy storage mechanism, and the reduction mechanism is capable of releasing elasticity so as to assist power in a process that the first limb and the second limb extend. The elastic energy storage mechanism is a torsional spring, a tension spring, a compression spring or a pneumatic push rod; and a limiting mechanism, which is used for limiting rotating angles of the first limb and the second limb, is arranged between the first limb and the second limb. The reduction exoskeleton joint disclosed by the invention is simple in structure; power assisting is achieved by virtue of a mechanical mode under the condition of not consuming external energy; and in addition, reduction from passive bending to active extending is achieved.

The invention discloses an adjustable bending sheath tube, which comprises a tube body, a traction fiber and a handle. The traction fiber can slide in the tube body and the handle, the tube body has a near end and a far end, the near end is connected with the handle, the handle comprises a branch which is arranged on one side near the near end of the tube body, a movable part which can transversely move along the branch is mounted on the branch, a near end of the traction fiber is fixed on the movable part, a far end of the traction fiber is fixed on the far end of the tube body, an elastic section is positioned near the far end of the tube body, the bending angle of the elastic section is changed when the movable part moves transversely on the branch, and the movable part is threaded with the branch. Compared with bending sheath tubes in prior art, the bending sheath tube is capable of shortening the effective lengthen of the handle and improving the accuracy of the angle controlling, and the operating process is enabled to be convenient and easy to control.

The invention provides a self-locking electronic mechanical braking device. The braking device consists of a box, a first motor, a planet gear transmission mechanism, a lead screw shaft, a second motor, a ball screw pair nut, a spring, friction plates and a brake disc; the first motor is mounted on the box; a sun gear of the planet gear transmission mechanism is arranged on a motor output shaft; a gear ring is fixed in the box; a planet carrier is coaxially connected with the lead screw shaft; the muddle part of the lead screw shaft and a second motor rotor are mounted to form a slide lead screw pair; a second motor stator is fixedly mounted on the inner side of the box; the other end of the lead screw shaft and the ball screw pair nut are mounted to form a ball screw pair; the ball screw pair nut penetrates through the box; the spring is mounted between the ball screw pair nut and the box; two friction plates are respectively mounted on separation plates on the outer sides of the ball screw pair nut and the box; and the brake disc is mounted between the two friction plates. The braking device can effectively save the volume in overall vehicle arrangement, and can stably realize self-locking function.

The invention provides an end mechanical self-locking hydraulic cylinder with a buffering function. A groove is formed in the inner wall of a cylinder barrel, a cylindrical hole is formed in a piston, a locking block is installed in the cylindrical hole, and the locking block and the groove are matched and used for self-locking and unlocking of the hydraulic cylinder. A sealing ring is arranged between the locking block and the inner wall of the cylindrical hole, the piston is provided with a hydraulic oil channel, hydraulic oil reaches a one-way valve in the middle of the piston through the channel, and the cylindrical hole is communicated with the one-way valve. The cylinder bottom is provided with a one-way throttling valve, and when the hydraulic cylinder retracts and gets close to the cylinder bottom, the buffering function of the hydraulic cylinder is achieved. By means of the hydraulic cylinder, reciprocating of a common hydraulic cylinder can be achieved, and the retraction stroke tail end self-locking and retraction stroke tail end buffering functions can also be achieved.

The invention discloses a five-freedom degree minimally invasive acupuncture operation guiding mechanism. The mechanism is sequentially provided with four platforms from bottom to top, a bottom platform, a middle platform, an upper platform and an acupuncture platform respectively, wherein a bottom module comprises the bottom platform, the middle platform as well as a push rod slide rail mechanism and a gear rack mechanism which are arranged between the bottom platform and the middle platform, and a swinging rotating freedom degree of a device around a vertical shaft is realized by pushing byvirtue of a first cylinder under the coaction of the push rod slide rail mechanism and the gear rack mechanism; a middle module comprises the middle platform, the upper platform as well as two sets of push rod slide rail mechanism-gear rack mechanism-screw nut mechanism which are parallel and are arranged between the middle platform and the upper platform; and an upper module comprises the upper platform, the acupuncture platform and push rod slide rail mechanism-swing rod sliding chute mechanism arranged between the upper platform and the acupuncture platform. The mechanism disclosed by the invention has flexible structure, four cylinders are used for realizing up-down, left-right, tilting and swinging movements in a large range, an ultrasonic motor and the screw nut mechanism are used for realizing acupuncture movement in an operation; and the two sets of gear rack-screw nut mechanisms are used in a parallel manner, and lifting and tilting movements of the mechanism are expertly realized.

The present invention relates to a double-link overturning platform, which comprises an overturning platform top and an overturning system driving the overturning platform top, and wherein, the overturning system is composed of a platform top pitching mechanism and a platform top turning mechanism. The platform top pitching mechanism consists of a bench, two main motors, two decelerators, two couplings, two fixed seats, four fixed hinges, two small gears, two big gears, two big gear steady bearings, two lower link hinges, two links, two upper link hinges, a coordinating rod, a coordinating rod hinge, an overturning bench connecting seat, an overturning bench and two upper bench hinges. The platform top turning mechanism consists of a platform top rotating motor, a small platform top rotating gear, a large platform top rotating gear, a rotating platform top and a main shaft. The present invention utilizes the driving of the main motors and the platform top rotating motor to realize the overturning movement of a workpiece on the rotating platform top, the structure is simple, the platform top pitching mechanism has a force-increasing effect, the self-locking protection can be realized at an ultimate overturning position, and the present invention can realize the overturning of large-tonnage workpieces.

The invention discloses a bus chassis articulated system for a urban bus rapid transit system and a working method thereof. The bus chassis articulated system consists of a turntable device, a hydraulic system and a system control unit ECU, wherein the turntable device comprises a turntable connected between a front turntable frame and a rear turntable frame; the central position of the turntable is movably connected with a mandril positioned in a vertical center line of the turntable; the upper free end of the mandril is connected with an articulated angle sensor; the hydraulic system comprises a left hydraulic cylinder, a right hydraulic cylinder, a hydraulic integrated block, a hydraulic pump and an oil tank which are arranged on the rear turntable frame and rotate together with the rear turntable frame; hydraulic arms of the left and right hydraulic cylinders are respectively sleeved with a cylindrical helical compression spring; front and rear cavities of the left and right hydraulic cylinders are in crossed connection and oil ways are communicated through the hydraulic integrated block; and the system control unit ECU comprises a microprocessor CPU. The bus chassis articulated system provides a larger torque during large-angle turning, realizes the self-locking function on the maximum articulated angle, and prevents a second axle from laterally sliding and front and rear bus bodies from shearing.

The invention relates to a portable type underwater salvage equipment wire take-up device, and belongs to the field of electromechanical device manufacturing. The wire take-up device comprises an emergency device, a self-locking device, a gear II, a shaft I, an electromagnetic clutch, a shaft II, a gear III, a gear IV, a coiling block, a shaft III, a synchronous belt wheel driving wheel, a synchronous belt, a synchronous belt wheel driven wheel, a reciprocating lead screw and a rope arranging device. The emergency device is composed of a handle, a ratchet mechanism, a manual shaft and a gear I; the self-locking device is composed of a worm wheel, a worm and a worm shaft. Combination of automation and manual operation is utilized for effectively solving the problem that due to mechanical faults, the device cannot continue working. Meanwhile, the rope arranging device is adopted to arrange cables in order; and in addition, the portable type underwater salvage equipment wire take-up device is relatively simple in structure and convenient to operate and carry.

The invention relates to a three-jaw mechanical hand driven by a rotary air cylinder. The three-jaw mechanical hand comprises a supporting shell, a slide base which covers the supporting shell, and three slide blocks which are arranged on the slide base, wherein a clamping jaw is arranged on each slide block; a cavity is formed when the slide base covers the supporting shell, a drive wheel is arranged in the cavity, the lower end of the supporting shell is equipped with a rotary air cylinder, and the rotary air cylinder drives the drive wheel to rotate in the cavity through a positioning shaftsleeve; three arc-shaped guide slots are formed in the drive wheel, the three arc-shaped guide slots are distributed in the drive wheel in a centro-symmetric mode, three centripetal linear guide slots are formed in the slide base, the centripetal linear guide slots are connected with the arc-shaped guide slots through drive slide wheels, the drive slide wheels drive the slide blocks to slide towards the centripetal linear guide slots, and the clamping jaws are driven to open or close to clamp or loosen workpieces. The three-jaw mechanical hand converts rotary motion of the rotary air cylinderinto linear motion of the clamping jaws, so that opening and closing of the clamping jaws are realized.

The invention provides a crawler-type multi-joint snakelike robot which comprises joint modules, drive modules and connecting modules. Each joint module comprises three 'V'-shaped side plates, wherein three wheel axles are installed between every two adjacent 'V'-shaped side plates through bearings so that the three 'V'-shaped side plates can be connected to form equilateral triangle distribution; two crawler wheels are fixedly installed on each wheel axle, so that two rows of crawler wheels are formed on the three wheel axles; a crawler belt is installed on each row of crawler wheels, and a joint chain wheel is also fixedly installed on the wheel axle located on the end portion. The drive modules are installed inside the joint modules. Each connecting module is located between every two adjacent joint modules. A worm bracket of each drive module is connected with a part of a connecting plate frame of the corresponding connecting module so that the two adjacent joint modules can be connected. A drive chain wheel of each drive module and the joint chain wheel of the corresponding joint module are in chain transmission. The crawler-type multi-joint snakelike robot is good in stability, strong in ground adaptive capacity, and applicable to disaster relief, detection, firefighting, transportation, space exploration and other fields.

The invention relates to the technical field of robots, in particular to a reconfigurable device of a robot tail end executor. The device comprises a connecting main disc, tool auxiliary discs, replaceable tool grippers, replaceable tool fingers and a tool auxiliary disc rack; the tool auxiliary discs are placed on the tool auxiliary disc rack, the replaceable tool grippers are detachably connected with the tool auxiliary discs, the replaceable tool fingers are detachably connected with the replaceable tool grippers, the connecting main disc is connected to a robot execution tail end and can be connected with the tool auxiliary discs, and through reconfiguration of the replaceable tool grippers and the replaceable tool fingers, clamping of parts of different specifications and in different shapes can be achieved. The device is compact in structure, reconfigurable in tail end executor, flexible, reliable and wide in application range.

The invention discloses a burglarproof bank note outlet, comprising the frame of the bank note outlet; the plate of the bank note outlet, a rotating shaft, a connecting plate and a lower baffle. The two sides of the plate of the bank note outlet are connected with an L-shaped left leg plate and an L-shaped right leg plate; the central turning positions of the left leg plate and the right leg plate are connected with the two sides of the frame in a turning way; the rotating shaft which is driven by a motor is arranged between the two sides of the frame; the two ends of the rotating shaft are respectively provided with a roller which is pulled to be freely upward rotated when the plate of the bank note outlet opens; the external sides of the left leg plate and the right leg plate are respectively provided with an inner gib head; the two ends of the rotating shaft respectively correspondingly form a clamping column which clamps the corresponding inner gib head; dentoid convex ribs are arranged on the plate of the bank note outlet at intervals; the upper sides and the lower sides of the convex ribs respectively extend to the upper edge and the lower edge of the plate of the bank note outlet; and one side of the lower baffle near the bank note outlet is respectively outward provided with a bend segment. When the bank note outlet is closed and is under a locking state, the lamping column is clamped in the corresponding inner gib head, and the left leg plate and the right leg plate lean against the upper surface of the washer of a corresponding limiting plate.

The invention discloses a deceleration driving device based on double servo motors, a drive system and a control method. According to the deceleration driving device, the double servo motors are adopted to be combined with worm wheels and worms, the two servo motors are provided with the worms correspondingly, meanwhile, the worm wheels rotate, then the large transmission ratio can be obtained, the bearing capability is high, and the drive torque is large. A gap can be removed when the respective forward rotation and reverse rotation of the two servo motors reach certain tension, the structure is stable and reliable, the deceleration driving device is suitable for the industrial robot drive system, high control precision can be provided, the situation that due to long-time usage, the gap becomes large is avoided, and the phenomenon of vibration is reduced as well; and high output stability is achieved, cost is lower than cost of a harmonic reducer, and practicability is higher. Meanwhile, the control method applied to the drive system is further provided. It is guaranteed that the set torque value is reached during gap removing through the opposite movement, the consistency of the difference value of the torque values of the two servo motors is also guaranteed during forward or reverse movement, and accordingly it is guaranteed that in the moving process, the function of gap removal is achieved.

The invention discloses a network security system based on a big data platform, and an implementation method. The network security system comprises a login identification module, a security module anda server, wherein the login identification module comprises an information collection module, an information analysis module, a first storage module and a data transmission module. The security module includes a network monitoring module, an alarm module, and an emergency processing module, and the server includes a data receiving module, a management module, and a second storage module. In the invention, the network security system based on the big data platform, and the implementation method are design. A temperature detection module and a voltage detection module a used for detecting the voltage and temperature, and a program monitoring module is used for monitoring a program to control the security of the big data platform in real time. At the same time, the user's login is restricted, which effectively enhances the confidentiality of the information and reduces the data leakage, so the system is safe and effective.

The invention provides a hinge device and a portable terminal, wherein the hinge device is capable of opening and closing 360 degrees stably and smoothly. The hinge device comprises a first rotating central shaft and a second rotating central shaft, support plates, cams, cam engaging parts, press force applying devices, stopping parts and stopping blocks. The first rotating central shaft and the second rotating central shaft are supported by shafts in a mutually parallel manner, the first rotating central shaft and the second rotating central shaft are arranged on the support plates and are enabled to rotate optionally, the cams and the cam engaging parts are arranged on the first rotating central shaft and are applied with force by the press force applying devices, the stopping parts are arranged on and rotate with the second rotating central shaft integrally, and the stopping blocks are arranged on assigned positions of the support plates and correspond to the stopping parts of the second rotating central shaft. The stopping parts of the second rotating central shaft are enabled to abut against the stopping blocks to limit the rotating angle of the second rotating central shaft. When the hinge device is in action, the second rotating central shaft stops rotating if the stopping parts of the second rotating central shaft abut against the stopping blocks, and the first rotating central shaft responds to further-applied acting force to start rotating.

The invention discloses a transmission mechanism, a head mounted display, and a refraction adjusting method for a head mounted display. The transmission mechanism is used for controlling movement of a first framework relative to a second framework. The first framework is connected to the second framework through a connecting member arranged on the first framework. The transmission mechanism includes a dial wheel, a worm, a turning gear, a transmission shaft and transmission gears. A horizontal frame of the second framework is equipped with a containing groove, part of the dial wheel is arranged in the containing groove and the dial wheel is arranged on the horizontal frame of the second framework with the worm being an axis. The transmission shaft is arranged on the horizontal frame of the second framework. The turning gear sleeves the transmission shaft and fits the worm. The transmission gears are symmetrically arranged on vertical frames of the second framework. The upper portion of the connecting member is equipped with tooth bars, and the tooth bars engage with the transmission gears. When the transmission gears fit the tooth bars, the connecting member drives the first framework to move in a straight reciprocating manner relative to the second framework. According to the technical solution, turning transmission and rotary to rectilinear motion are achieved, transmission is steady and reliable, and the transmission mechanism is simple in structure and low in cost.

The invention discloses a gate mechanism with a self-locking function, wherein the gate mechanism is applied to the financial equipment field. The gate mechanism comprises a guide rail assembly, a metal plate gate, and a drive assembly. The metal plate gate arranged on the guide rail assembly in a cooperation mode can slide on the guide rail assembly; and the drive assembly drives the metal plate gate to slide on the guide rail assembly. A lock-up head is arranged on the metal plate gate. A self-locking mechanism that cooperates with the lock-up head and is used for locking the metal plate gate is arranged on the guide rail assembly. The drive assembly includes a drive motor and a synchronous belt arranged on the guide rail device; and the output shaft of the drive motor is connected with the synchronous belt by a transmission gear and a transmission shaft. The provided gate mechanism has advantages of simple structure, high space utilization rate, and high safety performance and the like.

The invention discloses a synchronous rotating mechanism for inward and outward folding of a flexible screen. The mechanism comprises three rotationally connected cases and rotary mechanisms for connecting the cases, wherein the rotary mechanisms include an outward-folding rotary mechanism and an inward-folding rotary mechanism; the inward-folding rotary mechanism comprises an inward-folding package body and an inward-folding rotary shaft; the inward-folding rotary shaft comprises an inward-folding moving frame, a sliding moving frame and a compensation moving frame, and the sliding moving frame and the compensation moving frame are bilaterally symmetrically arranged, combined and connected; the sliding moving frame comprises a first sliding moving frame body and a second sliding moving frame body; two slots are formed in the inward-folding moving frame; a sliding groove, a sliding block and a sliding post are arranged on each of the first sliding moving frame body and the second sliding moving frame body; each sliding post can slide in the corresponding slot, the corresponding sliding groove and the corresponding sliding block; the sliding posts can rotate in the corresponding slots to be flattened, upward and downward movement is realized, and accordingly, the condition that the mechanism jacks the screen is avoided; clamping point grooves are combined with corresponding positioning pins, so that a clamping point self-locking function is available in both 0-degree and 180-degree states; each sliding groove and the corresponding sliding post are in sliding connection and achieve semi-arc locking synchronization, and a compensation function is achieved in a screen unfolding state.

A wire coiling structure capable of locking and unlocking includes a bottom box, an inner core, a volute spring, a cover plate and a pawl assembly. The bottom part of the bottom box protrudes towards the inner side of the box and forms a protruding shaft. A first clamping groove is formed in the protruding shaft in the axial direction. The inner core is provided with a fixed board, a ratchet wheel and a wire arrangement wall body. The ratchet wheel and the wire arrangement wall body are arranged on two faces of the fixed board. A second clamp groove is arranged in the wire arrangement wall body. Two ends of the volute spring are respectively fixed in the first clamping groove and the second clamping groove. The cover board is arranged at the opening end of the bottom box in a covering manner. The pawl assembly includes a pawl, a spring and a knob. The spring sleeves the pawl. The knob is connected with one end of the pawl. The other end of the pawl extends into the bottom box to fit with the pawl. A wire coils the wire arrangement wall body of the inner core and the coiling and uncoiling of the wire are realized by utilizing the elastic potential of the volute spring. The pawl and the ratchet wheel fit with each other so as to realize locking and unlocking. At the same time, the invention also provides a charger employing the coiling structure capable of locking and unlocking.

The invention discloses an automatic pole climbing device. The device comprises a horizontal sliding guiding devicewhich comprises a sliding rail,adjusting racks, an adjusting gear and a guiding block, and the adjusting gear is rotated to make the upper adjusting rack and the lower adjusting rack move in opposite or backward directions to adjust the distance between a first mounting bracket and asecond mounting bracket, thereby adjusting the distance betweentwo climbing wheel sets mounted on the first mounting bracket and the second mounting bracket, so that the device is suitable for climbing of telegraph poles of different diameters. The automatic pole climbing device further comprises a self-locking device, when the automatic pole climbing device starts the climbing operation, the self-locking device is disengaged from the telegraph poles, when the automatic pole climbing device is stopped, the self-locking device abuts against the telegraph poles, and a self-locking function is achieved, so that the automatic pole climbingdevice is safer to use.

The invention discloses a coupling device, a cavity filter and communication radio frequency equipment. The coupling device comprises a signal transmission main rod and a coupling body which is used for acquiring a signal of the signal transmission main rod, wherein the coupling body is connected to a printed circuit board in parallel to the signal transmission main rod. The coupling device is characterized in that the coupling body comprises a coupling outer conductor which is connected to the printed circuit board, and a coupling inner conductor which is arranged in the coupling outer conductor, wherein one end of the coupling inner conductor is positioned in a through hole of the printed circuit board; the coupling inner conductor comprises a threaded part and is in threaded fit with the coupling outer conductor through the threaded part; an elastic fixing block is arranged between the coupling outer conductor and the coupling inner conductor; and the coupling inner conductor is in interference fit with the elastic fixing block and is fixed in the through hole of the coupling outer conductor. The coupling device can be conveniently installed, has limiting and self-locking functions, is free of short-circuit, and is high in safety.

The invention discloses a direct insert type volleyball post for a volleyball match, comprising an upright post, wherein the upper side of the upright post is provided with a movable rod, the upper end of the movable rod is provided with a routing wheel, a wire tension mechanism is arranged on the outer side of the upright post, the movable rod is arranged in the inner cavity of the upright post,a rotation resisting device which can stop the rotation of the movable rod is arranged between the movable rod and the upright post, the lower end of the movable rod is fixedly connected with a movable piece, the movable piece is sleeved on the outer side of a screw rod and is matched and connected with the screw rod by screw threads, the screw rod is arranged in the inner cavity of the upright post and the movable rod, the lower side of the screw rod is movably arranged in a positioning block, the positioning block is fixedly arranged in the inner cavity of the upright post, the lower end ofthe screw rod is provided with a driven bevel gear, a driving bevel gear which is engaged with the driven bevel gear is movably arranged on the side wall of the upright post, and the outer end of thedriving bevel gear is connected with a lift handle. The direct insert type volleyball post is easy to operate and can realize the fine adjustment on the height of the movable rod.

The invention relates to a friction transmission rotation driving device which comprises a stepping motor, and a power unit is formed by the stepping motor and a harmonic speed reducer and is firmly fixed and connected with a rotary table base by a motor seat; an output shaft of the harmonic speed reducer is flexibly connected with an input end of a driving wheel by a coupler; the driving wheel is connected with a driving wheel support frame and can rotate relatively to the driving wheel support frame; a fixing plate of a pretightening force adjusting seat is fixedly connected with the rotary table base; the upper part of the driving wheel support frame is movably connected with a support plate of the pretightening force adjusting seat by a rotating shaft, and the lower part thereof is connected with a fixed plate of the pretightening force adjusting seat by a pretightening force adjusting device; and a friction ring is pressed by a driving wheel and is firmly fixed and connected with a rotary table. The friction transmission rotation driving device has the characteristics of high transmission resolving power, no reverse gap, compact transmission structure, short guide stroke and long stroke, and is especially applicable to driving a rotating axis with heavy load and high accuracy.

The invention discloses a concrete slump detection device capable of regulating a compaction plate. The device structurally comprises a bottom disk, a first guide rail, a movement frame, a slump cone,an importation hole, a rammer, an expansion link, a stay bar, a motor, a second guide rail and a measurement bar, wherein two sides of the bottom disk are independently vertically connected with thefirst guide rail and the second guide rail; the slump cone is arranged in the middle of the bottom disk; the top of the slump cone is provided with the importation hole; the slump cone and the movement frame are connected; the movement frame is installed on the first guide rail; the rammer is arranged above the slump cone and is connected with the stay bar through the expansion link; the stay baris installed on the second guide rail; the measurement bar is installed below the stay bar; and the motor is installed on the stay bar and is in transmission connection with the expansion link througha belt. The device has the beneficial effects that the connection position of the compaction plate and the expansion link is regulated to regulate a distance between the compaction plate and the inner wall of the slump cone, and therefore, concrete at different heights in the slump cone can be subjected to even compaction in an omnibearing way.

An engineering material crushing and mixing system comprises a soil block crushing device, a coconut coir block crushing device, a batching device and a screening device, wherein the soil block crushing device comprises a first stirring unit and a soil block crusher; the coconut coir block crushing device comprises material feeding volume adjusting units, a second material stirring unit and a coconut coir block crusher; the batching device comprises a third material stirring unit and material volume control units; and the screening device comprises a rotary screen and a screening hopper. The engineering material crushing and mixing system is high in automation degree, reliable in operation, and high in crushing efficiency; a matching unit is arranged, so that the material mixing and matching are made to be uniform; scrap iron adsorption units are adopted and the scrap iron mixed in the material can be adsorbed; and during the screening process, grain-sized material meeting the requirement is screened out through a screening material discharge port, and large-grain material is discharged through a material guiding box for reclamation.

The invention provides a wall-through casing pipe flexible waterproof sealing structure and a construction method. The structure comprises a wall-through casing pipe pre-embedded in a wall, a medium pipeline sleeved in the wall-through casing pipe and a sealing assembly arranged between the wall-through casing pipe and the medium pipeline, wherein a middle wing ring plate and an end wing ring plate are arranged on the outer wall of a pipe body of the wall-through casing pipe; the sealing assembly is s flexible sealing structure formed by a plurality of groups of sealing rings which are arranged in the wall-through casing pipe, spaced by non-fixed pre-pressing baffle rings and fastened by end baffles. According to the wall-through casing pipe flexible waterproof sealing structure, the sealing assembly adopts the flexible sealing structure with pre-tightening force, so that the stress of the medium pipe is balanced; the sealing rings are partitioned into a plurality of groups by the non-fixed pre-pressing baffle rings, and the sealing rings are in a pre-tightened deformation state under the action of the end baffles; the positions of two end wing ring plates of the wall-through casing pipe are adjusted, so that the end wing ring plates are embedded into the wall to form a mechanical labyrinth type sealing structure; and the underground waterproof sealing effect under the condition with high water level and high seepage pressure can be met.

The invention discloses a standard self-locking liquid distribution pump with a spring arranged outside. The standard self-locking liquid distribution pump with the spring arranged outside comprises a pump chamber. A pump ball mechanism is arranged in the lower portion of the pump chamber. A locking bottle cover is arranged at the upper end of the pump chamber. The standard self-locking liquid distribution pump with the spring arranged outside is characterized in that an integrated suction plugging pump rod mechanism is arranged in the pump chamber; a self-locking cover is arranged in the upper portion of the pump chamber; the upper end of the integrated suction plugging pump rod mechanism is connected with a pump body pressing head; a positioning convex rib is arranged in the pump body pressing head; and the reset spring is arranged in a cavity. The standard liquid distribution pump system is simple in structure, capable of being produced in a standardized mode and convenient to assemble, and different standard components can be selected and replaced according to functional requirements. The standard self-locking cover, the stand pump chamber, the integrated suction plugging pump rod mechanism, the locking bottle cover and the standard pump body pressing head are adopted and assembled into the standard liquid distribution pump system, a clamping connecting portion of the standard self-locking cover is in clamping connection with a clamping connecting block in the standard pump chamber, and rapid connection can be realized.

The invention relates to a garbage can capable of unloading at the bottom. The garbage can comprises a can body, wherein two ends of the can body are opened, a left sealing plate and a right sealing plate are hinged to the bottom opening of the can body, and the bottom opening of the can body is sealed by the left and right sealing plates which are matched; a press switch and a pushing mechanism are connected to the left sealing plate, the press switch is electrically connected to the pushing mechanism, and the pushing mechanism is in driving connection to a lock bar and can drive the lock barto move horizontally; a slideway matched with the lock bar is arranged on the right sealing plate, and the slideway is located on the moving stroke of the lock bar; in a natural state, the lock bar is partially located in the slideway. The garbage can capable of unloading at the bottom solves the problems of flying dust and scattered garbage, and is convenient and labor-saving to pour garbage andis also smoother and more thorough to pour garbage.

The invention discloses a flexible clamp apparatus for an automobile assembly parts conveying system, comprising two bearing beams parallel to each other; a slide rail is provided between the two bearing beams, at least two clamp units are disposed on the slide rail, a spacing adjustment is arranged between the two bearing beams, each clamp unit comprises a support frame slidably and fitly mounted on the slide rail, two ends of the support frame are provided with clamp mechanisms respectively, each clamp mechanism comprises a connecting sleeve, the upper end of each connecting sleeve is provided with a connecting shaft that is rotationally fitly connected with the corresponding support frame, a rotational drive mechanism is arranged on each support frame, the lower end of each connecting sleeve is provided with a clamp support that is provided with a switching support mechanism, each switching support mechanism comprises two rotary shafts arranged horizontally and parallel to each other with the two rotary shafts being rotationally fitly mounted to the corresponding clamp supports respectively, a connecting fork is connected to each rotary shaft, a support rod is releasably mounted on each connecting fork, each support rod is provided with a positioning pin or a V-shaped block, and each clamp support is provided with a switching drive mechanism.

The invention provides a locking device which comprises a base and a limiting structure. A containing space is formed in the hollow portion of the interior of the base, and one end of the containing space is fixedly provided with a boss; a limiting rail is formed in the inner side surface of the boss, and a limiting groove is formed in the limiting rail; the limiting structure comprises a rotary guide pillar and a limiting part, and the rotary guide pillar is rotatably inserted in the boss and can synchronously drive the limiting part to move close to or away from the boss under the effect of external force so that the limiting part can be clamped into or break away from the limiting groove; and an elastic pushing and pressing piece with one end abutting against the limiting part to apply driving force to the limiting part is arranged in the limiting rail; and after the limiting part breaks away from the limiting groove, the limiting part can be moved to a certain position to be fixed after pushing of the elastic pushing and pressing piece, so that the locking function is achieved. Correspondingly, the invention provides an aircraft, the aircraft applies the locking device, a propeller and wings can be effectively prevented from colliding with the outside.