90results about How to "Offset the impact" patented technology

The invention provides a bionic dexterous finger and a bionic robot, relates to the technical field of robots, and is used for solving the technical problems that in the prior art, fingers cannot swing laterally and are prone to being damaged due to external force impacts, and the bionic dexterous finger comprises a finger body, a driving assembly and a transmission assembly; the driving assemblies are arranged on finger and metacarpal joints of the palm, and each driving assembly comprises a driving lead screw; the transmission assembly comprises a moving mechanism, a connecting mechanism and a flexible mechanism, the moving mechanism is in transmission connection with the driving lead screw, the flexible mechanism is connected to the moving mechanism, and the connecting mechanism is rotationally connected with the flexible mechanism and further rotationally connected with the finger root of the finger body; the driving assembly drives the flexible mechanism to elastically deform and drives the finger body to bend towards or away from the palm center, so that the driving assembly has the flexible output characteristic. The finger body can laterally swing when being subjected to external force, enables the flexible mechanism to elastically deform, and drives the finger body to reset when being elastically reset; and the flexible mechanism can counteract impact force, the damping effect is achieved, and the fingers are prevented from being damaged.

The invention provides a floating type marine hydrology real-time monitoring device, and belongs to the technical field of marine hydrology monitoring. The floating type marine hydrology real-time monitoring device comprises a buoy, a bracket, a monitoring mechanism, a cleaning mechanism and an equipment box, wherein the bracket is fixedly mounted on the surface of the buoy; a sampling mechanism is mounted in an inner cavity of the equipment box and is used for replacing a water sample in the equipment box. The monitoring mechanism is arranged, the sea surface condition and the sea surface wind speed can be monitored through a camera and a wind speed sensor, the seawater salinity and the seawater solubility are monitored in real time through a conductivity sensor and an optical dissolved oxygen sensor, and the conductivity sensor and the optical dissolved oxygen sensor are arranged in the inner cavity of the equipment box, so that the sea surface condition and the sea surface wind speed can be monitored in real time. A filter plate is arranged at the bottom of the equipment box, so that impurities and marine organisms in seawater are prevented from being attached to the surfaces of the conductivity sensor and the optical dissolved oxygen sensor, and the measurement precision is ensured.

The utility model relates to an ecological seawall structure, which belongs to the technical field of bank protection engineering and comprises a seawall foundation, the seawall foundation comprises a slope top and a slope body, and a retaining wall structure is arranged at the joint of the slope top and the slope body. An arc-shaped wave dissipation ridge is arranged at the position, spaced by a certain distance from the retaining wall structure, of the top end of the slope body, a cushion layer is laid at the position, located between the arc-shaped wave dissipation ridge and the retaining wall structure, of the top end of the slope body, and the cushion layer comprises a dry stone cushion layer and a broken stone cushion layer which are sequentially arranged from top to bottom. A first block stone cushion layer is laid at the position, located on the side, away from the retaining wall structure, of the arc-shaped wave dissipation ridge, of the top end of the slope body, extends to the bottom of the slope body and further extends outwards to be connected with a second horizontal block stone cushion layer, and a first concrete retaining wall is arranged at the joint of the first block stone cushion layer and the second block stone cushion layer. The accropode is laid at the top end of the second block stone cushion layer and located on the outer side of the first concrete retaining wall. The safety of the seawall can be effectively guaranteed, and the stability of the seawall structure is guaranteed.

The invention belongs to the technical field of fabric dyeing and finishing, and particularly relates to padding equipment for dyeing and finishing polyester fabric, which comprises a workbench, side edge plates are symmetrically arranged on the workbench, the two side edge plates are jointly connected with a rotating shaft, one end of the rotating shaft is provided with a rotating square groove, and the rotating square groove is connected with the output end of a rotating motor. The rotating motor is provided with an inserting-stopping assembling and disassembling assembly. A rotating cam is mounted at the other end of the rotating shaft, and a multi-cycle position correcting mechanism is connected to the rotating cam; the rotating shaft is further provided with a position adjusting and distance locking device. The position adjusting distance locking device comprises a distance adjusting square groove formed in the side edge plate in a penetrating mode. According to the device, fabric adhering to the driving roller is scraped through the movable scraping unit, the situation that the fabric is too dry due to the fact that the fabric is squeezed by two rollers all the time is avoided, and therefore the situation that workers need to manually remove the adhered fabric is avoided, the risk when the workers operate equipment is reduced, the phenomenon that the workers are injured by the rolling mill is avoided, and the working efficiency is improved. And therefore, the safety of the equipment during use is improved.

The invention relates to the technical field of monitoring and maintenance, in particular to an unmanned aerial vehicle automatic airport monitoring and maintenance system based on real-time data analysis. The system comprises a detection analysis unit, an analysis prediction unit, a time prediction unit, a flight adjustment unit and a planning maintenance unit. According to the invention, the planning maintenance unit plans the wind-sheltering path from the position point of the unmanned aerial vehicle to the position point where the foreign matter rolls down in the airport runway according to the acquired wind power data, the acquired wind speed data and the acquired wind direction data, and then the unmanned aerial vehicle flies from the moment t according to the flight attitude of the unmanned aerial vehicle needing to be adjusted according to the planned wind-sheltering path. When the unmanned aerial vehicle flies to a position point where a foreign matter rolls down in an airport runway, automatic maintenance is carried out, when the unmanned aerial vehicle flies under the conditions of reduced wind power and optimized flight attitudes according to a planned wind sheltering path, a strong wind area can be effectively avoided, the flight stability is ensured, and the unmanned aerial vehicle is safe and reliable. And a foreign matter position point is reached in the shortest time, so that the searching and positioning time is shortened, and the airport runway maintenance efficiency is improved.

The invention discloses a multi-channel transient electromagnetic detection method and device for a tunnel face, and relates to the technical field of geophysical information, and the method comprises the steps: planning horizontal measuring lines for the tunnel face at equal intervals, and planning measuring points on each measuring line at equal intervals; building a multi-channel detection array composed of a transient electromagnetic receiving coil and a transient electromagnetic transmitting coil, and carrying out primary field zero magnetic flux point adjustment; the method comprises the following steps: setting emission parameters according to detection depth and resolution requirements, then emitting bipolar square waves, carrying out measurement point-by-measurement observation by using an adjusted multi-channel detection array, constructing a geometric network which takes measurement lines, measurement points and channel numbers as indexes according to observation data, and carrying out multi-channel combined three-dimensional imaging. By constructing a multi-channel detection array, the data volume of a measuring point is increased, and the fineness of three-dimensional imaging is improved; through primary field zero magnetic flux point adjustment, the influence of a primary magnetic field is counteracted, and the signal-to-noise ratio of data is improved.

The utility model relates to the technical field of steel plate stacking, and discloses steel plate stacking equipment with a buffering mechanism, according to the scheme, the steel plate stacking equipment comprises a stacking box, the stacking box is close to the edge of an external conveying belt, and the inner wall of the stacking box is slidably connected with a supporting plate. The steel plates are conveyed into the stacking box through the externally-arranged conveying belt, at the moment, the supporting plate is in a lifting state under supporting of the buffer springs, so that the situation that the conveyed steel plates fall down can be avoided, meanwhile, repeated resonance of the buffer springs is matched, the inertia force generated downwards when the steel plates are placed is counteracted, and the buffering effect is effectively achieved; the steel plates can be prevented from colliding with each other while damage to the horse-type equipment is avoided, an output shaft of the double-shaft motor drives the two reciprocating lead screws to rotate, the two reciprocating lead screws drive the two pressing plates to reciprocate front and back, the two pressing plates are matched with each other to adjust and align the steel plates in a stacked state, and therefore the stacking stability is improved.

The invention discloses a threading construction device for constructional engineering in the technical field of constructional engineering threading technology, and the threading construction device comprises a movable base, a threading box and damping grooves, the threading box is located on the upper side of the movable base, the damping grooves are formed in the left side and the right side of the bottom of the movable base, and a lifting box is fixedly connected to the top of the movable base; the right side of the rear side wall of the lifting box is fixedly connected with a first motor, the tail end of a power output shaft of the first motor is fixedly connected with a first rotating rod, the first rotating rod penetrates through the lifting box and extends into an inner cavity of the lifting box, the tail end of the first rotating rod is fixedly connected with a gear, the inner cavity of the lifting box is movably connected with a rack, and the rack is fixedly connected with the lifting box. The rack is meshed with the gear, the rack is fixedly connected with the threading box, the threading construction device for the constructional engineering is reasonable in structural design, the threading efficiency is improved, the accuracy is improved, and the moving stability is improved.

The invention relates to the field of motor control, in particular to a three-closed-loop voice coil motor control method based on a sliding mode-active disturbance rejection technology, and the three-closed-loop voice coil motor control method comprises a position loop, a speed loop and a current loop. Wherein the position loop adopts an active disturbance rejection control (ADRC) method, the internal uncertainty and external disturbance of the system are estimated and compensated in real time through an extended state observer, and meanwhile, control output is quickly adjusted by using an error feedback control strategy, so that high-precision position tracking is realized; the speed ring adopts a sliding mode control strategy, and the speed signal is accurately controlled by using the characteristics of high robustness and quick response of sliding mode control, so that the dynamic performance and the anti-interference capability of speed control are enhanced; the current loop adopts a classic PI control method, so that the current of the motor can be quickly and accurately adjusted; a temperature compensation mechanism is added, electrical parameters in a system state equation are updated through a temperature-parameter model, and errors of three-closed-loop control are reduced.

The invention discloses a current imbalance suppression method, device and system and a storage medium. The method comprises the following steps: acquiring a three-phase current output by a motor under a three-phase static coordinate system; converting the three-phase current into a two-phase current under a two-phase static coordinate system; based on a second-order generalized integral, two-phase current obtained after three-phase current conversion is extracted, and a negative-sequence current component of the two-phase current in a two-phase static coordinate system is obtained; obtaining a negative sequence voltage compensation amount based on the negative sequence current component; and superposing the negative-sequence voltage compensation quantity into the three-phase voltage modulation wave, and suppressing a negative-sequence current component in the three-phase current output by the motor. According to the method, the condition that the three-phase current of the motor is unbalanced can be improved, the operation stability and reliability of the motor are improved, and the service life of the motor is prolonged.

The utility model discloses a scrap iron cleaning device for PC steel bar production, and belongs to the technical field of PC steel bar production. Comprising a supporting seat, a lifting box and a fixed positioning cylinder are fixedly connected to the supporting seat, and a vertically-arranged steel bar body is placed in the fixed positioning cylinder; a guide groove is formed in one side of the lifting box, a connecting rod is arranged in the guide groove in an up-down sliding mode, and the end of the connecting rod is fixedly connected with a movable positioning ring. The steel bar main body is sleeved with the movable positioning ring, and an annular cleaning pipe is arranged below the movable positioning ring; annularly distributed cleaning nozzles corresponding to the steel bar main body are arranged below the annular cleaning pipe; a water storage tank is formed in the supporting seat, and a reflux pump is arranged in the water storage tank; the working end of the reflux pump is connected with a water outlet hose, and the water outlet hose communicates with the annular cleaning pipe. The steel bar main body is vertically arranged, and meanwhile, the fixed positioning cylinder and the movable positioning ring are arranged, so that the steel bar main body can be conveniently and quickly limited, and the steel bar main body is prevented from moving under the impact of water.

The utility model discloses a ship outer edge anti-collision buffer structure which comprises a pair of first fixed cavities and a second fixed cavity, the second fixed cavity is fixedly installed between the pair of first fixed cavities, four movable cavities are movably arranged in the second fixed cavity, and rotating rods are rotatably installed in the adjacent movable cavities. And the compression assembly comprises a compression plate movably arranged in the first fixing cavity, a plurality of sliding grooves are formed in the first fixing cavity, fixing sliding blocks are fixedly installed on the outer side wall of the compression plate, the fixing sliding blocks are arranged in the sliding grooves in a sliding mode, and functional springs are elastically connected between the compression plate and the inner side wall of the first fixing cavity. Through the arrangement of the compression assembly, when collision occurs, the spring steel sheet is compressed through the impact, meanwhile, the movable cavities are compressed through the two ends of the spring steel sheet, the adjacent movable cavities are close to each other, the movable cavities push the compression plate through the hinge rod, and the compression plate compresses the functional spring; and the impact force is counteracted under the counter-acting force of the functional spring.

The invention relates to the technical field of offshore photovoltaic power generation, and discloses an offshore floating type photovoltaic supporting structure system which comprises a main floating pipe capable of providing main buoyancy support for the whole and providing enough buoyancy in seawater, so that the whole photovoltaic system floats on the sea surface; the auxiliary floating pipe, the main floating pipe and the auxiliary floating pipe are connected with the three-dimensional truss to maintain the overall shape and rigidity of the system, extra buoyancy is increased by the auxiliary floating pipe, the stability of the system under various ocean conditions is ensured, the buoyancy load of the system is dispersed through cooperation of the main floating pipe and the auxiliary floating pipe, local stress concentration is reduced, and the service life of the system is prolonged. The buoyancy of seawater and the action of waves should be considered in the design of the floating pipes, it is ensured that the system stably floats on the sea surface through reasonable layout and design, and it is ensured that the system can still keep stable under the action of strong stormy waves through the high-strength and rigid design of the three-dimensional trusses and the auxiliary trusses; and the stability and safety of the whole structure are kept.

This utility model relates to the field of nonwoven fabric processing technology, and in particular to a continuous punching device for nonwoven fabric processing. It includes a worktable, with supports fixedly connected to the upper left and upper right sides of the worktable. An unwinding roller and a take-up roller are respectively installed in the upper part of the two supports. A guide adjustment and limiting structure is fixedly connected to the upper left side of the worktable. Several through-holes for punching are opened in the middle of the upper part of the worktable. This continuous punching device for nonwoven fabric processing achieves continuous conveying of nonwoven fabric through the unwinding and take-up rollers. Utilizing the guide adjustment and limiting structure, punching drive device, and tension roller, it precisely controls the movement and punching process of the nonwoven fabric, effectively solving problems such as easy fabric shifting and wrinkling, easy slippage during punching, and low punching accuracy in traditional punching devices. Overall, it improves punching efficiency and nonwoven fabric processing quality, and enhances the applicability and stability of the equipment.

The utility model discloses a spherical ceramic raw material automatic sorting device which comprises a base, a first supporting column is installed on the top of the base, a material mixing box is installed on the top of the first supporting column, a material conveying plate is installed on the right side of the material mixing box, a plurality of first holes and second holes are formed in the material conveying plate, and the first holes and the second holes are vertically through. The automatic screening device is formed by arranging a material conveying plate, a first baffle, a first hole, a second hole, a vibration plate and a vibration motor, the vibration motor is started to generate vibration of the material conveying plate, and meanwhile through the inclined design of the material conveying plate, raw materials can continuously move rightwards after moving to the top of the material conveying plate; and part of the raw materials penetrate through the first holes or the second holes of different sizes to move downwards, the raw materials are automatically selected, manual distinguishing is avoided, efficiency is improved, and manpower is saved.

The utility model discloses a kind of buried garbage can foot switch devices, including protective shell, the protective shell is provided with cover, second fixed pin shaft is provided on protective shell, protective shell is rotatably connected with support by second fixed pin shaft, support upper end is fixedly connected on cover by bolt, switch assembly for separating cover and protective shell is provided on protective shell;When user downwardly treads pedal, pedal drives rotating rod to swing upwards around first fixed pin shaft (movable slot forms limit guide to rotating rod), rotating rod is pushed to move upwards by lower connector by fixing frame, and then drive uncover link to lift upwards;Uncover link is pulled to rotate upwards around second fixed pin shaft by support by upper connector, finally realize the opening of cover, in this process, when fixing frame swings upwards, the piston rod of pneumatic spring will be compressed by second rotating rod, and then make pneumatic spring work, at this time, pneumatic spring provides boost for foot opening cover.

The invention relates to the technical field of horizontal type liquid reservoirs and discloses a horizontal type liquid reservoir which comprises a liquid storage tank, supporting legs are fixedly connected to the corners of the lower surface of the liquid storage tank, a liquid inlet pipe penetrates through the outer side face of the liquid storage tank, by arranging the supporting legs, the liquid storage tank can be supported, and when the liquid storage tank is placed on an automobile, the liquid storage tank is not prone to falling off when being placed on the automobile. The liquid storage tank can be connected to an automobile, transported liquid can be placed by arranging the liquid storage tank, the liquid needing to be transported can be conveniently poured into an inner cavity of the liquid storage tank by arranging the liquid inlet pipe, the inner cavity of the liquid inlet pipe is in threaded connection with a blocking cover, the liquid inlet pipe can be sealed by arranging the blocking cover, and the liquid storage tank is convenient to transport. Therefore, the liquid in the inner cavity of the liquid storage tank is prevented from flowing out through the liquid inlet pipe in the transportation process, a blocking mechanism is fixedly connected to the inner wall of the liquid storage tank, and the effect of preventing damage caused by water flow impact in the transportation process is achieved.

The present invention discloses an optical cable pulling chuck for communication engineering construction, comprising a main frame (1), a sliding plate (2), a first disc (202), a second disc (5), a baffle (4), a hollow cylinder (3) and a first handle (10); the main frame (1) is provided with a sliding groove (102) and a circular groove (101) in sequence along the horizontal direction; the sliding plate (2) is slidably connected in the sliding groove (102) and the side of the sliding plate (2) close to the main frame (1) is connected to the baffle (4) through a sliding rod (301); the first disc (202) is inserted on a first supporting shaft (201), and the second disc (5) is inserted in a second supporting shaft (501); the rear wall of the main frame (1) is respectively fixedly connected with a hollow cylinder (3) and a first handle (10). The present invention has a buffering effect when pulling an optical cable, offsets the huge impact force in the initial stage of pulling, and well protects the optical cable from damage when pulling.

The application discloses a train anti-climbing energy-absorbing device filled with a deformable aluminum foam capsule and belongs to the technical field of anti-climbing energy-absorbing devices. The anti-climbing mechanism comprises a shell, the inside of the shell is provided with a back plate, the end face of the back plate is provided with a first pressure sensor, the end face of the back plate is connected with a hexagonal alloy buffer group, the end face of the hexagonal alloy buffer group is connected with an anti-climbing plate, the end face of the anti-climbing plate is provided with four anti-climbing teeth, the inside of the hexagonal alloy buffer group is provided with a porous aluminum foam, the buffer mechanism comprises a back shell and two elastic capsules, and the inner wall of the back shell is provided with two side shells. When impact occurs, the hexagonal alloy buffer group and the porous aluminum foam cooperate to extrude and buffer, the sliding fit of the clamping shell and the contact plate is achieved, the friction of the moving plate is increased, the alloy cutter head performs a cutting action on the cutting block, kinetic energy is converted into other energy, and the impact force generated by the collision is reduced through multiple structures.

The utility model provides a garage lighting device with an anti-collision function, which relates to the technical field of garage lighting and comprises an anti-collision box and a lighting lamp mounted in a mounting groove formed in the bottom of the anti-collision box, a protection pad is arranged on the front side of the anti-collision box, an air bag for buffering is further arranged in the anti-collision box, and the anti-collision box is provided with a plurality of anti-collision grooves. The back face of the air bag is filled with jelly glue used for protecting the lighting lamp, the back face of the anti-collision box is provided with a plurality of first spring damping shock absorbers used for collision prevention, and through the design, the lighting device can be effectively protected and prevented from being damaged by collision; therefore, time and economy need to be wasted for maintenance and replacement.

The utility model discloses an ultrasonic cleaning device with automatic discharge. The ultrasonic cleaning device, including: cleaning tank body, it has the chamber of containing cleaning fluid, and it is the open structure of upper end, be equipped with ultrasonic generator on the cleaning tank body, cleaning platform, it can be suspended in the chamber of cleaning tank body and be used for bearing the product to be cleaned, buoyancy limiting mechanism, be located in the chamber of cleaning tank body, be used for limiting product position in the cleaning process, push material device, be configured as when cleaning is completed and the cleaning platform rises to the set discharge height, push product and realize automatic discharge and separate the cleaning platform, controller, ultrasonic generator, the lifting actuating mechanism of cleaning platform, push material device respectively with controller electricity is connected. The ultrasonic cleaning device with automatic discharge in the application can be used for the automatic cleaning of medicine basket, and can be used in the whole process of automatic cleaning of medicine basket.

The utility model provides a protective device for an arc-extinguishing harmonic-eliminating cabinet, and relates to the field of arc-extinguishing harmonic-eliminating cabinets. The protection device for the arc-extinguishing and harmonic-eliminating cabinet comprises an arc-extinguishing and harmonic-eliminating cabinet body and a protection outer frame, the bottom end of the protection outer frame is fixedly connected with a fixed bottom plate, a plurality of protection mechanisms for protecting the arc-extinguishing and harmonic-eliminating cabinet body are arranged outside the protection outer frame, and each protection mechanism comprises a limiting frame and a second movable plate. And a first movable plate is slidably connected into the limiting frame. According to the protection device for the arc-extinguishing and harmonic-eliminating cabinet, effective protection is provided for the arc-extinguishing and harmonic-eliminating cabinet body through the protection outer frame and the fixed bottom plate, displacement of the internal structure of the arc-extinguishing and harmonic-eliminating cabinet caused by external force impact is avoided, and the operation stability of the arc-extinguishing and harmonic-eliminating cabinet is improved; and through the first movable plate and the second movable plate, the protection outer frame is protected, so that the operation of the arc-extinguishing and harmonic-eliminating cabinet is more stable, and the protection effect of the device on the arc-extinguishing and harmonic-eliminating cabinet is improved.

The embodiment of the present application relates to the field of key technology, and discloses a capacitive inductive key, device, method and storage medium. The capacitive inductive key of the present application includes: a base and a moving component; the moving component penetrates the top surface of the base, and the moving component reciprocates perpendicular to the top surface; the moving component includes a mandrel and a conductor plate fixed relative to the mandrel; the base includes a base, a main plate and a secondary plate fixed relative to the base; the conductor plate is respectively arranged relative to the main plate and the secondary plate; the main plate includes a plate assembly, and the plate assembly includes two first plates and a second plate, and the two first plates are symmetrically arranged on both sides of the second plate; there is a first gap between one first plate and the second plate, and there is a second gap between the other first plate and the second plate, and the extension direction of the first gap and the second gap is different from the reciprocating motion direction. The key displacement detection accuracy of the capacitive inductive key of the present embodiment is high.

The utility model discloses a multifunctional communication distribution box cabinet, and relates to the technical field of communication distribution box cabinets. The device comprises a machine body and a protective door, the protective door is hinged to the interior of the machine body, a heat dissipation groove is formed in the side face of the machine body, a convenient wire arrangement device is arranged in the machine body, the convenient wire arrangement device comprises a fixing plate, and the front side face of the fixing plate is fixedly connected with a connecting block; and the top of the connecting block is fixedly connected with a fixed block. According to the utility model, the sleeve, the contact plate, the groove and other components are driven to cooperate with each other through the rotation force of the torsion spring rod, so that the contact plate fixed on the circumferential surface of the sleeve is extruded by pulling a line, and the contact plate is subjected to a pushing force; the torsion spring rod rotating on the rear side surface of the fixed block is rotated when the contact plate is subjected to the pushing force; and meanwhile, the sleeve fixed on the circumferential surface of the torsion spring rod is driven to rotate, so that lines in the machine body are neat, workers can conveniently maintain the machine body, and the working efficiency is greatly improved.

The utility model provides a kind of preparation carborane's adjusting reaction pipe shape change structure, belong to the technical field of preparation carborane, this preparation carborane's adjusting reaction pipe shape change structure includes bottom plate, heating box and feeding hopper, heating box is installed at bottom plate top, and feeding hopper is set at bottom plate top;When heating box and moving box body heat to reaction pipeline, reaction pipeline will occur axial deformation, reaction pipeline will push moving box body and conveying mechanism to move, to be able to very good offset axial deformation to the influence of reaction pipeline, the structure stability of reaction pipeline itself has been improved, the axial deformation of reverse pipeline has been reasonably controlled, after deformation elimination, reaction pipeline will drive moving box body and conveying mechanism to reset, do not affect subsequent use.

The present invention belongs to the field of valve technology, and in particular to a connecting valve for high-standard farmland water conservancy projects. The following scheme is proposed, including a valve body, a support seat is welded on the top of the valve body, and a rotating hole is penetrated through the top of the support seat and the top inner wall of the valve body, a valve stem is rotatably connected between the plurality of rotating holes, and a rotating disk is connected to the top of the valve stem by bolts, a valve flap is rotatably connected to the inner wall of the valve body, and the top of the valve flap is welded to the bottom of the valve stem, an inlet pipe is welded to one end of the valve body, and a drain pipe is welded to the other end of the valve body, a connecting sleeve is welded to one side of the outer wall of the inlet pipe and one side of the outer wall of the drain pipe, and a sealing mechanism is arranged inside the connecting sleeve. The present invention facilitates sealing treatment of the connection between the water pipe and the connecting valve, and prevents leakage of water from the connection between the connecting valve and the water pipe during transportation due to poor sealing between the connecting valve and the water pipe when the connecting valve is connected to the water pipe.

The invention relates to the technical field of asphalt processing, in particular to a drying cylinder material lifting blade anti-abrasion mechanism and a using method. Comprising a drying cylinder body, a plurality of material lifting blade bodies fixedly connected to the inner wall of the drying cylinder body, a plurality of guide plates fixedly connected to the inner wall of the drying cylinder body and self-cleaning units fixedly installed on the material lifting blade bodies. Scraping asphalt which is not completely dried and adhered to the outer wall of the material lifting blade main body; when the multiple chains swing, the knocking balls at the ends of the chains can synchronously move along with swing of the chains, the knocking balls intermittently collide with the outer wall of the material lifting blade body when moving, the completely dried and adhered asphalt on the material lifting blade body can be broken and fall off through collision, and self-cleaning operation on the surface of the material lifting blade body is completed.

The utility model relates to the technical field of frame structures, and discloses an automobile front auxiliary frame structure which comprises a front cross beam, an arc sleeve is movably connected to the outer surface of the front cross beam, a first connecting piece is fixedly connected to the front face of the arc sleeve, and a built-in groove is formed in the inner surface of the first connecting piece. A driving rod is movably connected to the inner surface of the built-in groove, a second connecting piece is movably connected to the front end of the driving rod, a telescopic block is arranged on the inner surface of the second connecting piece, and connecting rods are fixedly connected to the two sides of the front face of the front cross beam, so that direct impact of a road surface and wheels on a vehicle body is reduced, and therefore abrasion and deformation of the vehicle body are reduced; according to the auxiliary frame, the automobile body structure is protected, suspension is more stable, the control stability of an automobile is improved, meanwhile, the local pressure resistance of the auxiliary frame can be improved through the arrangement of the reinforcing blocks, the structural strength and rigidity of the auxiliary frame are enhanced, the auxiliary frame is firmer and more stable when bearing external loads and impacts, and the safety of the automobile is improved.

The utility model discloses plate-type feeding equipment for heavy building residues, which belongs to the field of plate-type feeding equipment and comprises a support, a driving roller is movably mounted in the support, a transmission roller is movably mounted on the side face of the driving roller in the support, and a conveying belt is movably mounted on the driving roller and the transmission roller. A feeding assembly is movably installed above the conveying belt and comprises a supporting plate, a feeding hopper, a buffering box, a first transmission rod, a second transmission rod, a crushing barrel, a crushing rod and a second gear motor, building residues are put into the buffering box through the arranged feeding assembly and collide with the inner wall of the buffering box, and therefore impact force is counteracted; according to the building residue crushing device, building residues are crushed and then slide downwards along the inner wall of the buffer box, the situation that the building residues directly impact the conveying belt to damage the conveying belt is avoided, the buffer box is convenient to replace, the crushing barrel and the crushing rod are arranged below the feeding hopper, heavy buildings are crushed and changed into small chippings, the conveying pressure of the conveying belt is reduced, and the conveying belt is better protected.

The application relates to a drilling technology, in particular to a design method of an elliptical drilling device and a drilling head based on gear transmission control, wherein the drilling device comprises an outer cover structure, an upper end cover is arranged at the upper end opening of a lower outer cover shell, a lower end cover bottom support is arranged at the lower end opening of the outer cover structure, the upper end cover and the lower end cover bottom support enclose the inside of the lower outer cover shell to form a movable cabin; a main transmission rod is arranged in the movable cabin, a drilling head is arranged at the lower end of the main transmission rod, and a transmission structure matched with the main transmission rod is arranged in the movable cabin; under the action of the transmission structure, when the drilling head rotates, the center of the drilling head moves in a reverse revolution motion, and the revolution period is the same as the revolution period. The device can drill an elliptical hole, can better release pressure, and can realize directional pre-splitting. In addition, the device can also drill an elliptical hole, a circular hole, a square hole with four arc chamfered corners, a rectangular hole, a rhombic hole and other double-axial symmetrical smooth curve-shaped holes in one step.