585 results about "Elastic energy" patented technology

The invention relates to the field of nuclear fusion, and discloses a fixing device for a nuclear fusion preassembled assembly, and the fixing device comprises a magnet connecting assembly which comprises a first beam body and a magnet connecting part, the first beam body extends in a first direction, and the magnet connecting part is arranged on the first beam body; the vacuum chamber connecting assembly and the magnet connecting assembly are spaced in the second direction, the vacuum chamber connecting assembly comprises a second beam body and a vacuum chamber connecting part, the second beam body extends in the first direction, and the vacuum chamber connecting part is arranged on the second beam body; the beam body connecting assembly is arranged at the two ends of the second beam body in the first direction, is connected with the first beam body and comprises a first connecting piece, a second connecting piece and an elastic energy storage piece, the first connecting piece is movably connected with the second connecting piece and is detachably connected with the first beam body, and the second connecting piece is detachably connected with the second beam body; one end of the elastic energy storage piece is movably connected with the first connecting piece, and the other end is movably connected with the second connecting piece. The gap between the magnet and the vacuum chamber can be restrained, and the position precision between the magnet and the vacuum chamber is guaranteed.

Provided in the present application are a passive-impact-type mechanical deicing device and method for an overhead line. The mechanical deicing device comprises an outer cover, an inner cover, an elastic energy storage mechanism, a bumping control mechanism and a bumping mechanism, wherein the bumping control mechanism comprises a traction block, a jaw and a jaw limiting cylinder; and the elastic energy storage mechanism comprises a first elastic member and a second elastic member, the first elastic member being pressed when the inner cover slides downwards, and the second elastic member being pressed when the jaw slides downwards, such that the load generated by icing of a conductor can be accumulated. In the device and method, the elastic energy storage mechanism is used to accumulate the load generated by icing of a conductor, and when the load exceeds a set threshold, the bumping control mechanism automatically triggers the bumping mechanism to move to generate an instantaneous impact load to remove the ice coated on the conductor. In this way, there is no need for a power source, and bumping and reset can be automatically triggered according to the change in icing without manual intervention, thereby ensuring the deicing effect, preventing large-amplitude vibration of the conductor during ice breaking, and greatly improving the deicing reliability and safety. The device is suitable for long-term operation in harsh field environment.

The present invention discloses a flapping-wing aircraft capable of catapult takeoff and having a sweep-torsion mechanism, belonging to the field of aircraft technology. The aircraft comprises: a fuselage frame, left and right flapping wings, a passive torsion mechanism, a sweep mechanism, a catapult takeoff mechanism, a transmission flapping mechanism, and a tail rudder, wherein: a passive torsion mechanism and a sweep mechanism are provided at the roots of the left and right flapping wings, the catapult takeoff mechanism is provided in the middle of the fuselage, and a hip joint, thigh, ankle joint, calf, foot, and toe joint are provided from top to bottom, the inner and outer sides of the hip joint are controlled by a servo motor for relative rotation, the ankle joint and toe joint are provided with elastic energy storage torsion springs, a synchronous pulley and its drive mechanism are provided between the outer side of the hip joint and the outer side of the ankle joint to control the relative rotation between the thigh and the calf, and perform energy storage for catapult takeoff. In summary, the aircraft can perform catapult takeoff flight, and can perform passive torsion and sweeping motions during the flapping of the wings, which helps to increase the flapping wing lift and the overall payload of the aircraft.

The invention provides a deicing device for split conductors and a control method. The deicing device comprises a supporting assembly, an elastic impact assembly, a monitoring module and a control module. Wherein the supporting assembly is installed between any two branch lines of the split conductor, the elastic impact assembly is fixed on the supporting assembly, the impact direction of the elastic impact assembly faces any branch line, the monitoring module is fixed on any branch line, and the monitoring module is used for monitoring the icing condition of the branch line. The control module is fixed to the supporting assembly and electrically connected with the monitoring module and the elastic impact assembly, and when the monitoring module monitors that the branch line starts to be iced, the elastic impact assembly is adjusted to be in an elastic energy storage state; and when the monitoring module monitors that the icing condition on the branch line exceeds a preset threshold value, the elastic impact assembly in the elastic energy storage state is released to impact the split conductor for deicing, so that the purposes of automatic triggering of the deicing device and long-term stay line deicing are achieved, and the safety and stability of the power transmission line are ensured.

A trampoline includes an elastic plate and a supporting unit, wherein the elastic plate includes a first end and a second end, and a portion, located between the first end and the second end, of the elastic plate is an elastic energy accumulator; the supporting unit includes supporting bodies arranged at the first end and the second end of the elastic plate, and the supporting bodies are capable of supporting the elastic plate and tensioning the first end and the second end of the elastic plate; during bending deformation of the elastic plate, the first end generates a symmetrical turning angle change with respect to the second end; during deformation recovering of the elastic plate, the supporting bodies apply reset force to the first end and the second end by utilizing the potential energy.

The invention belongs to the technical field of wearable exoskeletons, and particularly relates to a forearm power assisting device, a forearm power assisting method and an upper limb power assisting system. The forearm power assisting device comprises an angle transmission mechanism, an angle amplification mechanism, an elastic energy storage mechanism and a tension output mechanism; wherein the buckling angle of the front arm is transmitted through the angle transmission mechanism, and after the buckling angle is amplified through the angle amplification mechanism, the elastic energy storage mechanism is driven, so that the flexible traction cable outputs pulling force linked with the buckling angle of the front arm. The forearm power assisting device is a system based on the pure mechanical transmission and energy storage principle, forearm flexion and extension angle changes can be directly converted into self-adaptive tension linked with the forearm flexion and extension angle changes, and therefore forearm muscle fatigue in long-time fine operation can be effectively relieved without an external power source.

The soft rehabilitation glove comprises a corrugated pipe driver, a glove body, a tendon line, a control box, a control system and a driving device, the control system and the driving device are located in the control box, one end of the tendon line is connected with the driving device, and the other end of the tendon line is connected with the corrugated pipe driver; the wall thickness of each joint section of the corrugated pipe driver is sequentially reduced from the finger root to the fingertip, the corrugated pipe driver is fixedly connected above the finger part of the glove, and the corrugated pipe driver is longer than the finger part of the glove; the control system is used for receiving an instruction of a user and controlling the driving device, and when the tendon line shrinks, the corrugated pipe driver shrinks and stores elastic potential energy, and meanwhile, the fingers are driven to stretch; when the tendon lines are loosened, the corrugated pipe drivers can extend, the elastic energy stored in the corrugated pipe drivers is released, and the fingers are driven to be passively bent. The device can avoid secondary damage and discomfort caused by overlarge force generated by active driving, has internal compliance and natural adaptability, and further has the advantages of being light in weight, easy to control, portable and the like.

The invention provides a novel high and steep slope ecological restoration structure and a construction method thereof.The novel high and steep slope ecological restoration structure comprises a slope surface stabilizing base body unit, the surface of the slope surface stabilizing base body unit is covered with an ecological base material layer, and the slope surface stabilizing base body unit comprises a plurality of anti-sliding slope stabilizing modules distributed along the slope surface of a side slope in an array mode; each anti-sliding slope stabilizing module comprises a rigid bearing body, the outer surface of one side of each rigid bearing body is provided with a tenon part, the inner surface of the other opposite side of each rigid bearing body forms a mortise part, and the adjacent rigid bearing bodies form a continuous anti-sliding acting surface through mutual embedded connection of the tenon parts and the mortise parts; a soil nail anchoring assembly; the dynamic water-permeable protection panel is connected with the rigid bearing body through a telescopic water-permeable connecting piece, and the telescopic water-permeable connecting piece comprises an elastic energy storage supporting assembly and a water-permeable supporting assembly; and a water-swellable body. Through the construction of the slope surface stabilizing matrix unit, the ecological restoration effect of the side slope is greatly improved, and the occurrence risk of geological disasters such as landslide and the like is reduced.

The invention discloses a rock damage monitoring and early warning method, system and device based on multi-index fusion and a storage medium, and the method comprises the steps: carrying out the simulation loading test of a rock test piece collected in a target monitoring environment, collecting the test data of a plurality of indexes of the rock test piece at each preset moment, and obtaining a multi-index data set, the indexes comprise an elastic energy ratio, a dissipated energy ratio and acoustic emission energy; the multi-index data set is preprocessed; constructing a rock damage early warning model based on a sharp point mutation theory and the preprocessed multi-index data set; and performing rock damage monitoring and early warning on the target monitoring environment based on the rock damage early warning model. According to the method, comprehensive, accurate and stable monitoring and early warning of the rock damage state are realized by comprehensively utilizing a plurality of characteristics such as the acoustic emission energy, the elastic energy ratio and the dissipated energy ratio.

The invention relates to a sealing structure and a container, and belongs to the technical field of equipment sealing. One of the sealing structures includes a ring assembly including an elastic energy storage ring; the floating ring is provided with a container barrel contact wall surface and a container end cover contact wall surface, a first mounting position is arranged on the container barrel contact wall surface, and a second mounting position is arranged on the container end cover contact wall surface; and the first mounting position and the second mounting position are both provided with the ring assemblies. The ultrahigh-temperature and high-pressure sealing condition can be met during use, large matching clearances can be adopted between the floating ring and the container end cover and between the floating ring and the container barrel by utilizing the characteristics of the floating ring and the elastic energy storage ring during assembly, and installation is convenient.

The present application belongs to the field of rock burst risk assessment of deep rock engineering, and particularly relates to a quantitative evaluation method for rock burst tendency of surrounding rock under multiple disturbances, which comprises the following steps: obtaining the distribution depth of excavation damage zone through acoustic testing, and obtaining the average wave velocity of rock mass in the range of original rock zone; obtaining the geological strength index and disturbance factor through the average wave velocity; further obtaining the residual elastic energy of surrounding rock based on the geological strength index and disturbance factor, and evaluating the rock burst tendency of surrounding rock through the residual elastic energy of surrounding rock; the acoustic testing points of surrounding rock are unchanged, and the rock burst tendency of surrounding rock is evaluated after each excavation footage of the working face is completed, until the distribution characteristics of rock burst tendency no longer change obviously, which is taken as the long-term evaluation result of rock burst tendency of surrounding rock. The quantitative evaluation formula of rock burst tendency of surrounding rock considers the rock mass structure effect, which is reflected in the geological strength index, and considers the excavation disturbance effect, which is consistent with the actual situation of engineering construction process, and has strong practicability.

The utility model relates to the technical field of tunnel engineering, aims at solving the problems that an existing flexible connector is prone to breakage when being impacted, the protection effect is difficult to achieve, the connector and a tunnel lining are prone to being damaged, and potential safety hazards are caused, and provides a tunnel lining self-adaption section flexible connecting structure. Comprising a flexible connector arranged between two adjacent secondary lining sections, and the two ends of the flexible connector are used for being connected with the ends of the secondary lining sections on the two sides of the flexible connector respectively; the flexible connector comprises a framework, the interior of the framework is of a hollow structure, and the framework has rigidity and elasticity and can prevent the framework and a lining from being damaged and adapt to tunnel deformation; the flexible connecting structure disclosed by the utility model has certain rigidity, so that the secondary lining section seam has higher rigidity, and the secondary lining section seam is not easy to break when being subjected to larger earthquake damage or large-scale energy impact; and in addition, high elasticity and restorability are achieved, large deformation can be adapted, and the anti-dislocation capacity of the tunnel structure is improved.

The invention discloses a coal mine roadway rock burst prevention and control device, and relates to the technical field of coal mine safety, the coal mine roadway rock burst prevention and control device comprises an anti-impact rod piece penetrating into a coal mine roadway, the outer end of the anti-impact rod piece is fixed on the surface of the coal mine roadway through an anchor seat, and an anchor net connected with the outer end of the anti-impact rod piece is arranged on the surface of the coal mine roadway; the anti-impact rod piece comprises an anchor rod, an outer fixing cylinder, an anti-impact rod and an inner fixing cylinder, the anchor rod is sleeved with the outer fixing cylinder, the anti-impact rod and the inner fixing cylinder, the outer fixing cylinder, the anti-impact rod and the inner fixing cylinder are sequentially connected from outside to inside, the anti-impact rod comprises a first cylinder section and an elastic jacking mechanism, protruding curved strips distributed in the circumferential direction are arranged in the middle of the first cylinder section, and trapezoidal blocks are arranged on the inner surfaces of the protruding curved strips; the elastic jacking mechanism is used for elastically jacking the trapezoidal block; the expansion type anti-impact rod piece is designed and is provided with an air pressure auxiliary elastic energy absorption buffering structure and an elastic buffering structure for elastic deformation of the protruding bent strip and the elastic jacking mechanism, so that the impact ground pressure of the coal mine roadway can be absorbed in time.

The utility model relates to the technical field of energy storage, in particular to a linear elastic energy storage assembly. The linear elastic energy storage assembly comprises an energy storage group, the energy storage group comprises a plurality of elastic energy storage units, each elastic energy storage unit comprises two elastic strips, the two ends of each elastic strip are movably connected, the elastic energy storage units are arranged in a row, and in every two adjacent elastic energy storage units, the elastic strips are arranged in the row. The middle portions of the two elastic strips close to each other are movably connected, and the two elastic strips of the elastic energy storage unit can be stretched to be round or oval. The device has the advantages of being simple and reasonable in structural design, high in stretch rate and capable of storing large elastic potential energy.

The invention discloses an ornithopter capable of ejection take-off and provided with a sweeping-torsion mechanism, and belongs to the technical field of aircrafts, the ornithopter comprises a fuselage skeleton, a left flapping wing, a right flapping wing, a passive torsion mechanism, a sweeping mechanism, an ejection take-off mechanism, a transmission flapping mechanism and a tail vane, the catapult take-off mechanism is arranged in the middle of the robot body and sequentially provided with a hip joint, a thigh, an ankle joint, a shank, a foot and a toe joint from top to bottom, the inner side and the outer side of the hip joint are controlled by a servo motor to rotate relatively, and elastic energy storage torsion springs are arranged at the ankle joint and the toe joint correspondingly. Synchronous pulleys and driving mechanisms thereof are arranged between the outer sides of the hip joints and the outer sides of the ankle joints to control relative rotation between the thighs and the shanks, and energy storage of ejection take-off is carried out. In conclusion, the aircraft can perform ejection take-off flight, and the flapping wings can perform passive torsion and sweeping movement in the flapping process, so that the improvement of the flapping wing lift force and the overall effective load of the aircraft is facilitated.

The invention provides an adjustable pneumatic brake and an adjusting method, and relates to the technical field of brakes, the adjustable pneumatic brake comprises a box body, a power executing mechanism, a brake arm and a force amplifying mechanism, the power executing mechanism comprises an air cylinder and an elastic energy storage assembly, and the elastic energy storage assembly comprises a disc spring shaft, a disc spring set and a shaft seat; the disc spring shaft is connected with the air cylinder piston rod and penetrates through the shaft seat, and the disc spring set is sleeved at the tail end of the disc spring shaft. And two groups of symmetrically arranged brake arms are hinged in the box body, and one ends extend out of the bottom of the box body. The force amplifying mechanism comprises a connector, an adjustable connecting rod and an adjusting structure, the connector is fixed to the tail end of the disc spring shaft, and the two ends of the adjustable connecting rod are hinged to the connector and the brake arm respectively. When the air cylinder drives, the disc spring set is compressed to open the brake arm, and when pressure is released, the disc spring set drives the brake arm to clamp through the force amplifying mechanism. A force transmission path is adjusted through a mechanical structure, the adjusting range is expanded while the structural stability is kept, the braking force can be dynamically adjusted according to the friction coefficient, and the problem that the adjusting range of a traditional pneumatic brake is insufficient is solved.

The invention discloses a modular hydraulic energy recovery device and a recovery method thereof, and relates to the technical field of hydraulic energy recovery. A high-pressure pipeline of a hydraulic system is connected with the three functional modules in parallel through a multi-way pipe fitting, and a modular energy recovery system is formed. The high-pressure module adopts the combination of a leather bag type energy accumulator and a throttle valve, energy absorption is carried out aiming at the working conditions of high system pressure and slow change, and the pressure is stably released by utilizing the elastic energy storage characteristic of the energy accumulator; the high-frequency module is provided with a diaphragm type energy accumulator which is high in response speed, and instantaneous pressure fluctuation is rapidly restrained by dynamically adjusting the opening degree of a throttling valve; the power generation module drives a power generator through a hydraulic motor, and transforms the over-limit energy stored by the energy accumulator into electric energy for storage. The main control module monitors the system pressure and the change rate thereof in real time, dynamically switches the working states of the modules according to preset logic, and introduces a machine learning algorithm to optimize a threshold decision, so that the system adapts to complex working conditions.

The invention relates to the technical field of coal mining, in particular to a hard roof extra-thick impact coal seam risk evaluation method. Comprises: identifying a target layer; carrying out regional division on the hard roof; defining a linear equation for obtaining a stress component, and providing a basis for solving the linear equation of the main stress and the maximum shear stress; using a boundary linear equation to define the deflection and the corner at the node; defining a linear equation of the principal stress and the maximum shear stress when the medium-thickness plate is possibly subjected to shear or tensile failure; displaying an elastic energy density distribution rule on a plane; by comparing the elastic energy density of the hard roof under different rock stratum strengths, the danger of the hard roof extra-thick impact coal seam is quantitatively analyzed and evaluated. According to the method, the target layer is sequentially recognized, the model is constructed, the initial fracture energy accumulation and dispersion rule of the hard roof of the extra-thick coal seam in the coal mining process is obtained, finally, the initial fracture energy accumulation and dispersion rule is compared with the maximum approximate disaster energy for judgment, risk evaluation and early prediction are conducted for prevention and control, and mine earthquake disasters are controlled from the source.

The invention provides a winding anti-loosening and unfolding orienting device for a flexible stretching rod and a using method thereof.The winding anti-loosening and unfolding orienting device comprises wedge blocks, wedge block seats, a winding cylinder, the flexible stretching rod, an adapter shaft, a connecting rod and a guide wheel, the multiple wedge block seats are symmetrically arranged on the two sides of the winding cylinder, and the flexible stretching rod is arranged on the winding cylinder from inside to outside in a winding mode; a plurality of wedge blocks are symmetrically installed on the two sides of the flexible stretching rod, and the wedge blocks on the wound flexible stretching rod are stacked layer by layer and locked on the wedge block base to form a wedge block set. The wedge blocks and the wedge block bases are interlocked in the tangential direction and the transverse direction, the tangential displacement and the transverse displacement between the rings are limited, and disordered expansion and scattering of the flexible stretching rods under the action of the elastic energy of the flexible stretching rods and mutual contact friction of flexible stretching rod bodies between the rings are prevented; orderly fixation of folding and winding and orientation of unfolding of the flexible stretching rod are ensured; the structure is simple and reliable, the additional mass is small, and the usability and reliability of the flexible stretching rod serving as a stretching mechanism are improved.

The utility model provides a hold-down device for cutting plastic pipes, which belongs to the technical field of pipe fittings and comprises a vertical frame, a pair of hold-down rollers and a distance adjusting piece, the pair of hold-down rollers are rotatably arranged on the vertical frame in the vertical direction, a pipe clamping channel is reserved between the pair of hold-down rollers, and the distance adjusting piece is arranged between the pair of hold-down rollers. The pressing rollers are arranged on the vertical frame, arc-shaped concave faces are arranged on the roller faces of the pressing rollers, flexible sleeves are arranged on the pressing rollers, the arc-shaped concave faces are sleeved with the flexible sleeves, the flexible sleeves are attached to the arc-shaped concave faces, and the distance adjusting pieces are arranged on the vertical frame, connected with the pressing rollers and used for adjusting the distance between the pair of pressing rollers. Due to the fact that the flexible sleeve is soft and rich in elasticity, deep indentations can be effectively prevented from being generated on the contact surface of the plastic pipe in the pipe pressing process, meanwhile, the friction force between the flexible sleeve and the contact surface of the plastic pipe can be increased, and the pipe can be prevented from deviating.

The invention discloses a sealing structure suitable for an ultrahigh pressure container. A sealing area A is arranged at a pressure loading end between the inner wall of a cylinder and a sealing head, and a sealing area B is arranged in the direction far away from the pressure loading direction; in the sealing area A, the pressure loading end of the sealing head is provided with a circle of concave table, the end, away from the pressure loading direction, of the concave table is an inclined face a, an included angle a is formed between the inclined face a and the inner wall of the barrel, the pressure loading end of the sealing head is detachably connected with a gland, and a first sealing assembly or a second sealing assembly is installed in the concave table in a replaceable mode. The first sealing assembly comprises a metal triangular pad and a rubber sealing ring a. The second sealing assembly comprises a check ring and an elastic energy storage ring. In the sealing area B, a section of outer inclined plane is arranged on the outer side of the sealing head, a section of inner inclined plane is arranged on the inner wall of the cylinder, an included angle b is formed between the outer inclined plane and the inner inclined plane, and the threaded pressing ring, the pressing ring, the metal elastic ring and the rubber sealing ring b are sequentially arranged close to one another in the pressure loading direction. The structure can ensure the sealing reliability under various working conditions and is convenient to disassemble and assemble.

In a method, pose information of a cloth model is determined. A background grid is obtained based on uniformly dividing a two-dimensional plane that includes the cloth model. First motion information of each grid vertex indicating a motion state of each grid vertex at a first moment is acquired. An elastic energy function of the background grid indicating elasticity of the cloth model based on an elastic energy parameter is acquired. A target function indicating one or more constraints of the elastic energy function and the first motion information of each grid vertex is acquired. Second motion information of each grid vertex indicating a motion state of each grid vertex at a second moment later than the first moment is obtained based on the target function. First pose information of the cloth model is determined based on the second motion information of each grid vertex.

The invention discloses an environment-friendly wide-temperature-range adhesive tape with a high-toughness structure and a preparation method of the environment-friendly wide-temperature-range adhesive tape, and belongs to the technical field of high-performance composite materials. The core-shell particles with the soft core-hard shell structure are added, the core layer is composed of the elastic polymer with the glass transition temperature lower than-20 DEG C, the shell layer is the rigid polymer with the glass transition temperature higher than 60 DEG C, and the wide temperature range self-adaption of the high-toughness structure adhesive tape to summer and winter environments is achieved through the synergistic effect of temperature-sensitive characteristics. In a summer high-temperature environment, the rigid shell layer plays a microscopic scaffold effect and a physical cross-linking strengthening effect and inhibits flowing permeation of a sizing material to micropores of the release paper. And in a low-temperature scene in winter, the elastomer of the core layer still maintains high elasticity, can absorb and dissipate impact energy, serves as a microscopic pressure head, enhances mechanical interlocking and Van der Waals' force effects, and rapidly establishes sufficient initial adhesive force. And the contradictory problems of constructability and reliability of difficult paper uncovering in summer and poor adhesion in winter of the structural adhesive tape are integrally solved.

The invention discloses a bifunctional hybrid insole with high elasticity and shock absorption and a preparation method of the hybrid insole, and relates to the field of insole manufacturing. According to the dual-function high-elasticity and shock-absorbing Hybrid insole and the preparation method thereof, the half sole area is made of a POE high-elasticity material, and through twin-screw extrusion molding and plasma surface treatment, high elasticity with the rebound rate being larger than or equal to 60% and the Shore hardness C being 55-65 is achieved; the heel area is made of a low-density microcellular foaming EVA shock absorption material, and a uniform structure with the pore diameter of 100-200 microns is obtained by accurately controlling foaming parameters. Through material innovation, structure optimization and process precise control, the leap-type upgrade of the insole function from single buffering to biomechanical adaptation is realized; the technical key point is that the performance coordination of the partitioned composite material, the process breakthrough of the interface strength and the dynamic mechanical transition design, and the actual effect is that the movement efficiency is improved, the joint protection is enhanced, and the service life of the product is prolonged.

The invention belongs to the technical field of energy power generation, and discloses a slow release device and a gravity energy storage system. The slow release device comprises a supporting structure, a first slow release part, a second slow release part and an elastic energy storage structure, the second slow release part is provided with a first position spaced from the traction rope and a second position abutting against the traction rope, the elastic energy storage structure comprises a driving assembly and an elastic piece, and the second end of the driving assembly can abut against the traction rope. The elastic piece is in an energy storage state, and the driving assembly can limit the second slow release part to the first position. When the traction rope works normally, the traction rope abuts against the second end of the driving assembly to enable the elastic piece to store energy, meanwhile, the driving assembly limits the second slow-release part to the first position, the second slow-release part and the traction rope are arranged in a spaced mode, normal movement of the traction rope is prevented from being affected, and after the traction rope loses efficacy and is broken, the elastic piece releases energy to enable limiting of the driving assembly and the second slow-release part to be relieved. The second slow release part can be switched to the second position to abut against the traction rope, and the heavy object unit is prevented from falling rapidly.

The utility model discloses a casual shoe with a wrinkle-free vamp, which relates to the technical field of casual shoes and comprises a casual shoe body, a label, a connecting pipe, an air bag and a breather pipe, the vamp is arranged at the bottom of the casual shoe, one end of the vamp is glued with one end of the bottom of a tongue, the label is arranged at one end of the top of the tongue, the connecting pipe is inserted into the tongue, and the air bag is arranged in the connecting pipe. The vamps of the leisure shoes are made of the flexible rubber materials, so that the vamps can recover through the elasticity of the vamps when the vamps are bent to generate wrinkles, meanwhile, air can be inflated into the vamps through the connecting pipes, and when the elasticity of the rubber materials of the vamps is reduced after long-time use, the surfaces of the vamps can be inflated and expanded through the air inflated into the vamps; therefore, the wrinkles on the surface of the vamp can be supported, and the wrinkles are prevented from being generated.

The invention provides a cleaning assembly and cleaning equipment, and relates to the technical field of cleaning equipment. The cleaning assembly comprises a base used for being fixedly connected with cleaning equipment; the outward swinging support arm comprises a first end and a second end, and the first end is rotatably connected with the base; the cleaning head is rotatably connected with the second end of the outer swinging support arm; the elastic energy storage part is arranged between the cleaning head and the outer swing support arm, and is used for enabling the cleaning head to have a trend of rotating outwards relative to the outer swing support arm; the guide piece is fixed on the cleaning equipment; when the outward swinging support arm moves from the retracting position to the unfolding position, the included angle between the cleaning head and the outward swinging support arm is kept within a first included angle range under the constraint of the guide piece. And when the outward swinging support arm swings to a critical position where the cleaning head is separated from the constraint of the guide piece, the cleaning head swings outwards to a larger second included angle relative to the outward swinging support arm under the action of the elastic energy storage piece. The cleaning assembly can solve the problems that a side brush is short in extending distance, cannot go deep into corners such as the bottom of furniture and can clean many dead corners.

The present invention relates to a door stop assembly for a double-door cabinet, wherein one end of a base plate is provided with a vertical plate pointing downward, and both sides of the other end of the base plate are provided with vertical groove wall plates pointing upward, and also includes a groove bottom plate arranged in parallel with the vertical plate, the groove bottom plate and the groove wall plates enclose a U-shaped groove body, the upper part of the U-shaped groove body is sleeved with a sealing sleeve adapted to its shape, a locking piece is installed in the middle of the groove bottom plate inside the U-shaped groove body, and a sealing strip is also installed on the lower surface of the base plate located at one end of the U-shaped groove body opening. The present invention adopts modularization, which is easy to assemble and replace; a sealing sleeve is provided on the top of the door stopper, and a sealing strip is provided, which has good sealing performance, and the sealing strip has a certain elasticity, which can better adapt to the elastic deformation generated when the cabinet is subjected to dynamic or static external loads; after installation, a suitable gap is left between the door bodies on both sides of the cabinet, and the door body and the cabinet shell and frame are elastically separated by a sealing strip, thereby improving the transportation and use stability of the cabinet.

The invention provides an ore pillar and filling body interaction loading test device and method under the variable stiffness condition, and belongs to the technical field of mining engineering.The device comprises a loading device, a lateral confinement cylinder, a load conduction column, an elastic energy storage device and a monitoring system, and a sample is placed in the lateral confinement cylinder; the elastic energy storage device comprises a first structure, a disc spring, a mandrel and a second structure, and the sample is a single pillar-filling body sample or a multi-pillar-filling body sample. The device has the advantages of simple operation and low cost, and can realize the flexible loading function of quantifiable rigidity of the testing machine. The device can be used in cooperation with an existing rock mechanical testing machine, so that the interaction process of the jambs and the cemented filling body under the loading conditions of top plates and bottom plates with different rigidities is simulated, a testing means and method can be provided for studying the reinforcing mechanism of the filling body on the jambs, and the influence mechanism of the filling body on the stress load transfer process between the jambs is clarified.