38results about How to "Guaranteed impact" patented technology

The invention relates to the technical field of medical instruments, in particular to a flusher and application thereof in ear canal treatment, the flusher comprises a needle tube and a liquid pushing column in sliding fit with the needle tube, one end of the needle tube is movably sleeved with a sleeve, a liquid outlet is formed in the side wall of the end, away from the liquid pushing column, of the sleeve, and a rotary pushing assembly is arranged between the needle tube and the liquid pushing column; and the sleeve is connected with the rotary propelling assembly, and the sleeve extends into the ear canal while rotating under the action of the rotary propelling assembly, so that the cleaning liquid in the needle tube rotatably flushes the inner wall of the ear canal through the liquid outlet. The sleeve rotates and extends into the ear canal under the action of the rotary propelling assembly, so that the cleaning liquid in the needle tube rotatably flushes the inner wall of the ear canal through the liquid outlet, the impact force of the cleaning liquid on the inner wall of the ear canal is guaranteed, a large amount of liquid medicine is prevented from entering the interior of the ear canal instantly, and the medicine applying frequency is reduced.

The invention discloses a translational photon optical shutter device capable of being combined with multiple inserts, and the device is characterized in that the device comprises an optical shutter switching assembly, a vacuum chamber, a driving mechanism, and a hinge assembly; the optical shutter switching assembly and the hinge assembly are installed in the vacuum chamber, and the driving mechanism is located outside the vacuum chamber. The driving mechanism drives the optical shutter switching assembly to do reciprocating translation through the hinge assembly and is used for switching control over light passing and light blocking of synchrotron radiation light. An absorber is arranged in the optical shutter switching assembly, the top of the absorber is a light receiving face, and the light receiving face comprises a plurality of inclined faces which are obliquely upward in the incidence direction of synchrotron radiation light and used for blocking the synchrotron radiation light generated by various insertion pieces at the same time. The design of the multi-inclined-plane absorber can block synchrotron radiation light generated by various inserts at the same time, so that the valuable axial space occupied by the device in a light beam line is effectively shortened, and a solid technical basis is provided for the design and layout optimization of the light beam line combined by multiple inserts.

The utility model relates to a kind of exhaust structure of motor gear box for vehicle, including exhaust valve in gear box, labyrinth, backflow plate and several baffle, backflow groove is formed between backflow plate and gear box inner wall, baffle makes several intercommunicating chambers in gear box, chamber is between labyrinth and backflow groove, chamber is communicated with backflow groove, chamber is also communicated with labyrinth, exhaust valve is communicated with labyrinth, backflow groove is equipped with backflow port with gear box interior communication in both ends, oil liquid into chamber can flow through backflow groove and return in gear box, after the air pressure in gear box rises, gas is discharged from exhaust valve via labyrinth.The utility model is by being equipped with baffle, reduce the oil liquid that splashes when gear rotates enters labyrinth, also reduce the oil liquid reaching labyrinth entrance, effectively avoid the oil leakage situation of exhaust valve, oil liquid in chamber flows through backflow groove and returns in gear box, reach the effect of oil liquid backflow;Gas can avoid gear box oil leakage after being discharged.

The application discloses an intrinsic voltage estimation and parameter self-setting method and system for low-voltage governance, and is applied to the technical field of smart grids, and the method comprises the following steps: acquiring electrical quantity data of a target governance device; correcting the current line equivalent resistance and line equivalent reactance according to the electrical quantity data; calculating the intrinsic power grid voltage according to the electrical quantity data, the corrected line equivalent resistance and the corrected line equivalent reactance; generating the proportional gain of a closed-loop controller through a preset inverse proportional relationship of the corrected line equivalent resistance, generating the integral gain and the differential gain according to the proportional gain according to a preset proportion; and updating the control parameters through the calculated proportional gain, integral gain and differential gain. According to the application, the line impedance does not need to be manually input, the line characteristics are self-learned through online active disturbance and passive observation, the deployment conditions of different transformer areas, different lengths and different loads are adapted, and the deployment cost and maintenance cost are significantly reduced.

The invention discloses a river-crossing T-shaped rigid frame bridge demolition construction method which comprises the steps that cutting construction of a T-shaped rigid frame bridge is completed through rope saw cutting, and an auxiliary construction platform is erected in advance before cutting construction; the T-shaped rigid frame bridge is provided with a bridge main body and a plurality of bridge piers, the auxiliary construction platform comprises a platform body which is used for blocking and protecting the bottom of the bridge main body and can be used for driving, and the platform body is arranged and located under the bridge main body in the length direction of the bridge main body. The edges of the two transverse sides of the platform body respectively outwards exceed the edges of the corresponding sides of the bridge main body by a set distance; the auxiliary construction platform further comprises towers correspondingly arranged over the piers, and the towers are connected with the platform body through stay cables. According to the construction method, the navigation requirement of the bridge bottom can be met, meanwhile, the influence on the river water area is small, the influence on the surrounding environment and the dependency are small, and the dismantling construction efficiency of the bridge can be improved.

The invention belongs to the field of power equipment multi-physical field rapid calculation, and discloses a magnetic field rapid analysis and calculation method under a transformer short-circuit fault and a related device. The method comprises the following steps: calculating vector magnetic potentials of a plurality of previous time steps through a full-order calculation model of a transformer short-circuit magnetic field in a high-dimensional space; constructing a snapshot matrix of a solution vector and a snapshot matrix of a nonlinear term; obtaining a group of orthogonal bases based on an intrinsic orthogonal decomposition method and in combination with the snapshot matrix of the solution vector; constructing a reduced-order subspace by using an orthogonal basis; projecting the full-order calculation model of the short-circuit magnetic field of the transformer into the reduced-order subspace; based on a discrete experience interpolation method and in combination with the snapshot matrix of the non-linear term, obtaining an interpolation matrix of the non-linear term; updating a nonlinear term in the transformer short-circuit magnetic field reduced-order calculation model by using the interpolation matrix, and then calculating to obtain a vector magnetic potential in a reduced-order subspace; and reconstructing the vector magnetic potential back to the high-dimensional space, and calculating the magnetic field under the short-circuit fault of the transformer according to the reconstructed vector magnetic potential.

The invention relates to the technical field of water washing shrinkage scouring machines, and discloses a water-saving and environment-friendly water washing shrinkage scouring machine and a water washing method.The water-saving and environment-friendly water washing shrinkage scouring machine comprises a mounting table, a swing spraying device is mounted on one side of the mounting table and comprises a spraying pipe mounted on the inner side of the mounting table, swing gears are arranged on the two sides of the spraying pipe, and the swing gears are connected with the swing spraying device through a connecting rod. The swing gear is connected with a swing fixing rack in a meshed mode, and a rotary spraying device is arranged at the bottom of the spraying pipe. The rotary spraying device comprises a spraying head installed at the bottom of the spraying pipe, an eccentric output head is installed at the bottom of the spraying head, and the eccentric output head is communicated with the spraying pipe. According to the scheme, the spraying efficiency of the spraying pipe is improved, the beneficial effects of saving water resources are achieved, and the problem that the water resources are wasted due to the fact that the spraying efficiency is low is solved.

The utility model relates to the technical field of wedge type gate valves, and discloses a gate plate structure which is characterized in that a connecting sleeve is fixedly mounted at the top of a gate plate, a mounting groove is formed in the side face of the bottom of the gate plate, a sealing strip is clamped in the mounting groove, a bent belt is fixedly mounted on the side wall of the gate plate, and the bent belt is connected with the connecting sleeve. A bottom edge is fixedly installed at the bottom of the gate plate, and a flow dividing mechanism is arranged on the lower surface of the bottom edge. The flow guide structure is matched with the multiple sets of large arc grooves and the protruding edges which are arranged in a wave shape, so that a transportation medium flowing through the flow guide structure can be influenced by the appearance of the flow guide structure to generate different flowing states, and influences on the service life of the flashboard are avoided; transportation media flowing at the bottom of the gate plate influence each other in the horizontal direction, so that impact force of the transportation media on the gate plate in the vertical direction and the transverse direction is reduced, and the service life of the gate plate and the wedge gate valve is guaranteed.

The utility model belongs to the technical field of cleaning machines, and particularly relates to a cleaning machine placing frame structure and a cleaning machine, the cleaning machine placing frame structure comprises a frame body, the inner side of the frame body is provided with a supporting frame formed by a plurality of ribs, and the supporting frame is used for supporting an object to be cleaned; supporting legs obliquely downwards or bent downwards extend from the corners of the frame body, and the supporting legs are used for supporting an inner container of the cleaning machine; the boundary dimension defined by the outer edges of the bottom ends of the supporting legs is larger than the boundary dimension of the frame body. A cleaning channel is formed between every two adjacent supporting legs. When the cleaning machine is used for cleaning articles in the placing frame, part of water flow can wash the articles upwards from the cleaning channel formed between every two adjacent supporting legs, and under the action of gravity, the water flow can fall into the frame body to wash the articles on the supporting frames.

The invention relates to the technical field of tailing treatment, in particular to a convenient-to-feed magnetic separator which comprises a magnetic separation box, a crushing mechanism, a shifting mechanism, a shaking mechanism and a scraping and pushing mechanism. The motor drives the rotating disc to rotate, the crushing box can be driven by the pressing column to impact downwards in a circulating and reciprocating mode so as to impact and crush ores located on the surface of the shaking plate, and the crushing box ascends to drive the transmission wheel to rotate so as to force the guide wheel and the ejector rod to drive the shaking plate to shake rapidly; according to the magnetic separation device, the shaking plate is arranged, the impacted ore on the surface of the shaking plate can be screened and loosened, the discharging efficiency is improved, it is guaranteed that the ore can be impacted comprehensively, the ore crushing effect is guaranteed, the overall magnetic separation working effect is improved, and guide teeth are forced to be engaged with a connecting frame through rotation of the shaking plate so as to drive the connecting frame and scraping strips to slide along the shaking plate; and the ore tightly attached to the surface of the shaking plate due to impact is scraped, and the ore is further loosened in cooperation with the working state of shaking.

The application discloses a micro-thermal battery activation device and relates to the technical field of micro-thermal battery activation. The device comprises a battery base body, a mounting seat is fixedly connected to the top of the battery base body, a filler is mounted at the bottom of the mounting seat, a plurality of ignition caps are inlaid between the filler and the bottom of the mounting seat, a circular ring seat is fixedly arranged in the mounting seat, a plurality of striking pins are vertically and slidably arranged in the surface circular holes of the circular ring seat through elastic members; three groups of force storage assemblies are arranged, each group of force storage assemblies corresponds to a group of trigger assemblies, the trigger conditions of the three groups of trigger assemblies are different, the force storage assemblies are matched with the trigger assemblies, multi-factor triggering in a complex environment is realized, the situation of activation failure is avoided, the force storage assemblies are in a non-force storage state in a non-triggering state, the spring is prevented from being in a stressed state for a long time, stress fatigue is avoided, and long-term preservation is more facilitated.

The invention belongs to the field of petrochemical engineering, particularly relates to a storage tank feeding diffusion pipe structure, and provides the following scheme aiming at the problems that when existing high-flow oil enters, the flow speed is too high, impact force is easy to generate, internal components and an inner floating disc of an oil tank are damaged, and static electricity is generated, the storage tank feeding diffusion pipe structure comprises a tank body, one side of the tank body is fixedly connected with a penetrating first connecting pipe used for liquid feeding, and one end of the first connecting pipe is fixedly connected with a reducer. Media entering the tank body can be subjected to opposite impact, the flow and kinetic energy of oil entering the oil tank are effectively reduced, and therefore impact force on the inner floating disc and the tank body is avoided, static electricity is avoided, and the service life of the oil tank is prolonged. The storage safety of the tank body is improved, the service life of the tank body is prolonged, meanwhile, the piston is supported through the spring, the impact force of a medium is reduced, the diffusion stability of the medium is improved, the safety of a pipeline is kept, and the filter cartridge in the extension pipe is used for filtering the medium to keep the cleanliness of the medium.

The utility model provides a speed reducer shell which comprises a shell body, a shaft penetrating hole is formed in the shell body, a wear-resisting ring is embedded in the shaft penetrating hole, the top of the wear-resisting ring is integrally connected with a connecting column, the top end of the connecting column upwards penetrates to the top face of the shell body, and a first installation hole is formed in the top end of the connecting column. The connecting column is located in the side wall of the shell. According to the structure, the speed reducer shell is divided into the shell body and the wear-resisting ring, the strength of the penetrating-out position of the output shaft rod is provided through the wear-resisting ring, and therefore the requirement for the strength of the shell body is lowered while stable output of the output shaft rod is guaranteed, the manufacturing cost of the shell body is lowered, and then the use cost of the whole speed reducer is lowered.

The invention discloses a bubble generating device which comprises an air pump, the air pump is connected with a bubble generator capable of generating bubbles through an air pipe, the bubble generator comprises a bottom cover and an air collecting disc installed above the bottom cover, and an air collecting cavity is formed between the bottom cover and the air collecting disc. The air pipe is arranged in the air collecting disc, the outlet end of the air pipe is communicated with the air collecting cavity, a plurality of air outlet holes are formed in the air collecting disc, the longitudinal section of the air collecting disc is in an inverted U shape, the longitudinal section of the bottom cover is in a U shape, the air collecting disc is embedded in the bottom cover, and the outer side wall of the air collecting disc is attached to the inner side wall of the bottom cover. The invention further discloses a washing machine applying the bubble generating device. The bubble generating device and the washing machine are easy to produce, convenient to clean, low in cost and higher in washing efficiency.

The utility model discloses auxiliary equipment with a buffer structure for mechanical and electrical installation, which belongs to the technical field of mechanical and electrical installation and comprises a workbench and a support, the support is fixedly connected to the upper surface of the workbench, and the surface of the support is fixedly connected with a rotating shaft through a bearing. When the installation position of the electromechanical equipment is adjusted, people place the electromechanical equipment on a lifting plate when the lifting plate is located at the lowest position, then a servo motor operates through a controller to drive a threaded column to rotate for a period of time, and under the mutual cooperation of the threaded column and a threaded pipe, the threaded column moves upwards; in addition, under the cooperation of multiple sets of spherical clamping grooves and balls, people can easily adjust the installation position of the electromechanical equipment in the horizontal plane through cooperation of the two hands, and through multi-direction adjustment cooperation, people can conveniently adjust the installation position of the electromechanical equipment.

The utility model discloses a novel explosion propagation structure which comprises a device main body, a fixing assembly is arranged on the outer side of the device main body, a sealing assembly is arranged at the top of the device main body, an explosion propagation assembly is arranged in the device main body, a partition plate is located at the joint of an explosion propagation hole and an explosion hole, an internal groove is formed in the partition plate, and a sealing assembly is arranged in the internal groove. A connecting rod is inserted into the partition plate, a push plate is fixedly installed on the top of the connecting rod, and the push plate is flush with the bottom wall of the explosion propagation hole. According to the novel explosion propagation structure, the friction iron block rapidly moves downwards to generate friction with the flintstone, so that sparks can be generated, the generated sparks can ignite gunpowder in the explosion propagation hole, the explosion propagation function is achieved, and explosion of the gunpowder in the explosion propagation hole can be achieved only by placing a small amount of gunpowder used for pushing the push plate in the explosion propagation hole; therefore, gunpowder required by explosion propagation is greatly reduced, and the safety of explosion propagation is greatly improved.

A lifting type range hood comprises an upper box body and a lower box body, the lower box body is arranged on the upper box body and can do lifting motion relative to the upper box body, a draught fan is installed in the upper box body, the lower box body is provided with a smoke inlet, the central axis L of an impeller of the draught fan is completely located in a vertical plane S, and the vertical plane S is perpendicular to the plane where the smoke inlet is located. The intersection point of the vertical plane S and the upper edge of the smoke inlet is B, the intersection point of the central axis of the impeller and the plane M where the volute cover plate located on the main air inlet side of the draught fan is located is A, the slope of the connecting line from the point A to the point B is k1 in the state that the lower box body rises to the highest position, the slope of the connecting line from the point A to the point B is k2 in the state that the lower box body descends to the lowest position, and k1-k2 is larger than or equal to 0.8. According to the lifting type range hood, the lifting stroke is limited in a certain range through limitation of two slope difference range values, so that the range hood has enough descending stroke and negative pressure area downward movement to ensure the oil smoke suction effect, and also has enough ascending stroke to ensure that the size of the whole range hood is relatively small.

The utility model relates to the technical field of cold storage door plate buffering assemblies, in particular to a cold storage door plate buffering assembly which comprises a door plate assembly, the door plate assembly comprises a wall plate, a left storage door and a right storage door are movably installed on the surface of the wall plate, and buffering parts are installed on the outer side of the left storage door and the outer side of the right storage door. The buffering component comprises an arc shaft fixedly connected with the wall plate, a rail shaft is inserted into the inner side of the arc shaft, a buffering spring is connected to the tail end of the rail shaft, the end, away from the rail shaft, of the buffering spring is fixed to the inner wall of the arc shaft sliding groove, and the right side of the rail shaft is movably connected with the side of the left garage door and the side of the right garage door. The left garage door and the right garage door push the rail shaft to move in the arc shaft, the movement of the rail shaft can compress the buffer spring, it is guaranteed that the resilience force of the buffer spring can buffer the impact force in the movement of the rail shaft, the safety is guaranteed when the left garage door and the right garage door rotate to be opened and closed, and the left garage door and the right garage door are prevented from colliding with a wall frame.

The application discloses an intrinsic voltage estimation and parameter self-setting method and system for low-voltage governance, and is applied to the technical field of smart grids, and the method comprises the following steps: acquiring electrical quantity data of a target governance device; correcting the current line equivalent resistance and line equivalent reactance according to the electrical quantity data; calculating the intrinsic power grid voltage according to the electrical quantity data, the corrected line equivalent resistance and the corrected line equivalent reactance; generating the proportional gain of a closed-loop controller through a preset inverse proportional relationship of the corrected line equivalent resistance, generating the integral gain and the differential gain according to the proportional gain according to a preset proportion; and updating the control parameters through the calculated proportional gain, integral gain and differential gain. According to the application, the line impedance does not need to be manually input, the line characteristics are self-learned through online active disturbance and passive observation, the deployment conditions of different transformer areas, different lengths and different loads are adapted, and the deployment cost and maintenance cost are significantly reduced.

The utility model relates to the related technical field of rubber half tracks, in particular to a rubber half track of an all-terrain profiling structure, which comprises a track, a protective plate is fixedly connected to the surface of one side of the track, a buffer mechanism is arranged in the track, a tire is rotatably connected to the surface of one end of the track, and the tire is connected with a rubber belt. A mounting mechanism is arranged on the surface of one side of the tire. According to the rubber half track of the all-terrain profiling structure, through the arrangement of the connecting plates, the first bolts, the damping hydraulic devices, the springs and the buffering plates, the rubber half track of the all-terrain profiling structure has good buffering and damping functions, and in the actual using process, the connecting plates are tightly connected with the track body; the first bolts play a role in fixing the connecting plates and the track body, the stability of the whole structure is guaranteed, and due to the combined effect of the damping hydraulic devices and the springs, when the rubber half track of the all-terrain profiling structure encounters uneven terrains, the rubber half track can be fixed.

The utility model discloses a novel pipeline dredger, which particularly relates to the field of pipeline dredging, and comprises a shell I and a shell II, an inflator is arranged in the shell II, a handle is fixedly arranged at the top end of the inflator, a connecting piece is arranged at the end part of the inflator, and the connecting piece is respectively connected with a pressure gauge and an exhaust valve through connecting pipes. A ventilation cavity is formed in the first shell in a communicating mode, and a piston is arranged between the ventilation cavity and the connecting piece; a connecting port is integrally formed in the end of the first shell and communicates with the ventilation cavity, and a dredging head is connected to the connecting port. The connector at one end part of the shell can be connected with various different dredging heads, so that the dredging device can be suitable for different use scenes, and when an inflator is used for inflating, the pressure of the air chamber can be increased, so that the impact force in the dredging process is ensured, and the pressure value can be displayed through the pressure gauge; and by arranging the exhaust valve, pressure can be released instantly to dredge the blocked pipeline, and the dredging effect is good.

This invention discloses a method for preparing low-viscosity dimethyl silicone oil, comprising the following steps: S1, after removing moisture from the raw materials methylcyclosiloxane and end-capping agent, a polymerization reaction is carried out under the action of a catalyst until the viscosity no longer changes, obtaining a primary crude dimethyl silicone oil; S2, the obtained primary crude dimethyl silicone oil is decolorized to obtain a secondary crude dimethyl silicone oil; S3, the secondary crude dimethyl silicone oil treated in step S2 is subjected to vacuum distillation or rectification to remove boiling substances at low temperatures, obtaining finished low-viscosity dimethyl silicone oils. According to this method, dimethyl silicone oils with a viscosity of any value less than 20 mm² / s at 25°C can be prepared for use in fabric finishing agents.

The utility model discloses thick steel plate shot blasting equipment which comprises a shot blasting chamber and a shot blasting sliding trolley, and a shot blasting device is arranged at the top of the shot blasting chamber; the side face of the shot blasting chamber is provided with an inlet and outlet allowing the sliding trolley to penetrate in and out, and the sliding trolley is obliquely arranged, so that steel shots obliquely impact a steel plate on the sliding trolley; the shot blasting machine further comprises a circulating feeding system, the circulating feeding system supplies materials to the shot blasting devices, inlets and outlets are oppositely formed in the two sides of the shot blasting chamber, and a steel plate borne by the sliding trolley penetrates into the shot blasting chamber from the inlet and outlet in one side and penetrates out of the inlet and outlet in the other side of the sliding trolley. Steel shots are not prone to being focused on the plate face, it is guaranteed that all the steel shots collide with the surface of a steel plate, mutual collision of the steel shots is reduced, and the rust removal quality can be improved.

The application discloses a kind of construction engineering construction rapid piling device, comprising: mobile carrier, adjusting device, support frame, limiting device, fixing device, driving device, piling device, the mobile carrier carries equipment whole moves;The adjusting device is fixed on mobile carrier, and the angle of equipment is adjusted;The support frame is fixed on adjusting device;The limiting device is slidably arranged on support frame;The fixing device is slidably arranged on the inner side of support frame;The driving device is fixed on fixing device;The piling device is slidably arranged on the inner side of fixing device.Compared with prior art, by the setting of driving device, under the cooperation of rotating assembly, the outer pile hammer and the inner pile hammer are controlled, under the action of forward capstan and reverse capstan, staggered piling work is carried out, and the piling rate is improved.

The invention discloses a high-strength durable nano string for a Chinese zither. The high-strength durable nano string is prepared by the following steps: S1, material selection and nano technology application; S1.1, nano material selection: selecting nano carbon fibers, nano ceramic composite materials or high-strength nano polymers as base materials; the materials have extremely high strength and toughness in microstructure, and can effectively enhance the tensile strength and durability of strings. Through the nano reinforced material, the strings have higher tensile strength and wear resistance, can bear larger tension, and are longer in service life and stable in tone quality: the tension and elasticity of the strings are accurately regulated and controlled, so that intonation stability and clear and pure tone quality can be kept in long-time use; the application of the nano coating and the composite material enables the string to have better moisture resistance and oxidation resistance, reduces the influence of environmental factors on the tone quality, and through the design of the high-strength durable Chinese zither string based on the nano technology, the performance of the string can be significantly improved, the service life of the string can be prolonged, and the stability of the tone quality can be ensured.

According to the preparation method of the soft rock standard cylinder sample provided by the invention, the soft rock test block is wrapped by the fast-hardening gypsum, and after the gypsum is cured, the bond stress on the soft rock test block is provided, and the overall stability of the soft rock test block is enhanced, so that the soft rock test block can bear the impact force of direct turning of a lathe. Then turning the soft rock test block wrapped by the gypsum by using a lathe to form a standard cylinder sample in one step, and obtaining the standard cylinder sample of which the diameter tolerance is less than 0.05 mm only through one-time rough turning without re-grinding; meanwhile, one end face of the standard cylinder sample is directly turned and flattened, and the flatness is high; and the other end face is cut off by linear cutting, and the non-parallelism of the two end faces is less than 0.05 mm. According to the method, the standard sample meeting the national standard can be efficiently and stably prepared, the preparation success rate can reach 90% or above, and the problems that an existing soft rock sample is low in preparation efficiency and low in preparation success rate are well solved.

The invention discloses an automobile control arm for a new energy automobile, which belongs to the field of automobile suspension system accessories and comprises a control arm body, a ball seat is arranged on the control arm body, lubricating oil is filled in the ball seat, a ball pin is arranged on the ball seat, and two suspension bushings are symmetrically arranged on the control arm body. The ball pin is sleeved with a protective sleeve made of elastic materials, and the protective sleeve is connected with the surface of the ball seat. An elastic ring is installed on the side wall of the ball seat, and an annular cavity is formed in the elastic ring. By arranging the elastic ring, the annular cavity, the cavities and the output hole, the elastic ring can be extruded through the side wall of the ball pin in the rotating process of the ball pin, at the moment, part of the cavities are extruded, lubricating oil in the extruded cavities enters the annular cavity and then is discharged through the output hole, and the lubricating oil discharged from the output hole impacts the inner wall of the protective sleeve; therefore, impact force can be generated on the inner wall of the protective sleeve, and grit attached to the outer wall of the protective sleeve is shaken off through the impact force.

The utility model discloses a punch press sliding block relates to punch press spare part field, and its technical scheme main points are: including main part, the buffer cavity is seted up in main part, is equipped with a plurality of buffer sheets in buffer cavity, and buffer sheet can move in vertical direction relative to main part. In the utility model, when the falling of main part slows down, the buffer sheet exerts a downward force on the main part under the action of inertia, reduces the rebound tendency of the main part and ensures the impact force of stamping, ensures the smooth stamping process, and the elastic sheet and the elastic gasket are all made of rubber material, which reduces the noise generated by the collision between the buffer sheets and the inner wall of the buffer cavity.

The present invention relates to a method for mapping longitude and latitude coordinates to image coordinates, which selects several points in a scene, uses known measurement data of the scene or tools such as Google Maps to calibrate the longitude and latitude coordinates in the physical space and the pixel coordinates in the image, establishes a corresponding relationship between the coordinate points in the image and the coordinates in the physical world, and on this basis, for any point in a given space, uses adjacent points of different numbers and sampling combinations to calculate a set of mapping points based on a homography matrix transformation model, and then deletes outliers with large deviations to obtain a final mapping result. This mapping method is not only highly accurate, but also conducive to reducing the amount of data processing.

The invention discloses a storage device and a transport vehicle. The storage device comprises a mounting frame, a storage box and a damping mechanism. And a mounting cavity is formed in the mounting frame. And the storage box is mounted in the mounting cavity. And the damping mechanism is mounted on the mounting frame. The damping mechanism comprises a mounting assembly, a buffer assembly and a transfer assembly. The buffer assembly and the transfer assembly are both installed on the installation assembly, the buffer assembly comprises at least two mutually-overlapped buffer plate bodies, the transfer assembly makes contact with the buffer plate bodies, the side, away from the buffer assembly, of the transfer assembly abuts against the storage box, and the buffer plate bodies can deform between a first form and a second form. The buffer plate body can deform to the first form when the transmission assembly is subjected to external force and can return to the second form when the external force is removed. The problem that in the prior art, a packaging box for externally packaging precise articles is poor in damping effect is solved.