38results about How to "Reduce load capacity" patented technology

The invention relates to the technical field of wind power, and discloses a lattice type fan tower which comprises a top tower section, a switching section and a lattice section, the top end of the switching section is fixed to the top tower section, and the top end of the lattice section is fixed to the switching section; the lattice section comprises a plurality of corner columns and a plurality of reinforcing pieces, all the corner columns define a corner column frame, and the top ends of all the corner columns are fixed to the switching section; the reinforcing pieces are connected to the two adjacent corner columns in the side edge direction of the corner column frame. Any corner column is provided with a corner column inflection point, and the corner column is bent towards the outer side of the corner column frame at the corner column inflection point. The height of the corner column inflection point is configured to be lower than or equal to the lowest height of the blade tip of the fan blade, it is guaranteed that the blade does not collide with the tower in the operation process, the taper of the lattice section below the corner column inflection point can be flexibly adjusted, the structural efficiency is higher, and the material consumption is smaller. And the frequency of the tower can be flexibly adjusted by adjusting the conicity of the lattice sections, so that the resonance interval of the fan is avoided, and the safety of the tower is guaranteed.

The utility model relates to discharging equipment for multi-specification plastic sheet production, the discharging equipment comprises a frame body, a supporting frame body and a locking device, a motor is arranged on the frame body, the motor is in driving connection with a winding roller, the supporting frame body is rotatably arranged on the frame body, and a supporting roller set is rotatably arranged on the supporting frame body; the locking device comprises a locking part and a locking matching part, one locking part is arranged on the frame body, the other locking matching part is correspondingly arranged on the supporting frame body, the locking part and the locking matching part can be matched with each other, and when the locking part and the locking matching part are matched with each other, the supporting roller set supports the winding roller from bottom to top. According to the winding device, the supporting roller set can support the winding roller from bottom to top in a rotating mode, then the supporting frame body is fixed through the locking device, and due to the fact that the winding roller is supported through the supporting roller set, the bearing capacity of the output shaft of the motor is reduced, and the service life of the output shaft of the motor is prolonged.

The invention discloses a paper folding type underwater gripper based on HASEL drivers and a parameter design method.The paper folding type underwater gripper comprises a driver set and a gripper body, the gripper body comprises a connecting plate, bending joints, bearing frameworks and gripping fingertips, the bearing frameworks are connected through the bending joints to form a Z-shaped gripper framework, and the included angle of the bending joints is adjustable; the driver group comprises a plurality of single drivers, each single driver comprises a strain film and an electrified electrode, the single drivers are connected through a folding film, and the driver group is folded at the folding film to form a Z-shaped paper folding structure; the driver sets are installed on the inner side and the outer side of a gripper framework of the gripper, and the strain film is located in an included angle space formed by the bearing framework and the bending joint. When the driver set on the outer side is started, the strain film on the outer side expands, the included angle on the outer side of the gripper framework becomes large, and the grippers are bent inwards to enter the grabbing state; similarly, when the driver group on the inner side is started, the gripper is bent outwards and enters a loosening state.

The utility model discloses a bicycle wheel holder which comprises a fixing seat and clamping arms symmetrically arranged on the fixing seat, a driving motor for driving the clamping arms to open and close is installed on the fixing seat, and parallel connecting rods are fixedly installed at the ends of the clamping arms. A clamping plate for clamping a wheel is fixedly mounted at the other end of the parallel connecting rod; in the pushing and moving process of the clamping plates and the parallel connecting rods, the bearing capacity of the push-pull motor can be reduced, meanwhile, wheel abrasion can be avoided, and the wheels are prevented from slipping off due to too large friction force; when the clamp holder clamps the rear wheel of the bicycle, protruding parts such as a foot support and a speed change chain wheel at the rear wheel part can be avoided; the structure design is scientific and reasonable, the bicycle clamping action can be rapidly, stably and safely conducted, and supporting is stable and reliable.

The utility model belongs to the technical field of handbag, concretely relates to adjustable shoulder strap formula handbag, including the bag body, the bag body and the shoulder strap of extending setting along the bag body height direction, the bag body is formed with the gap between the inside and outside two layers, the inside and outside layer between the inside layer and the outside layer form gap, the shoulder strap is circular and surrounds the bag body setting, and the shoulder strap and the bag body coincide portion set in the gap between the inside and outside layer of the bag body length direction both sides, the shoulder strap lower extreme is located in the gap between the inside and outside layer of the bag body bottom surface, the shoulder strap can slide in the gap, the bag body is provided with the both sides of the shoulder strap and is equipped with the adjusting hole, the bag body is equipped with the both sides of the shoulder strap and is equipped with the limiting device still in the upper end, and the limiting device and the shoulder strap correspond to set, and the limiting device will be opposite fixed with the bag body with the shoulder strap. Through the above-mentioned component's setting, not only makes the handbag neatness high, but also can adjust length range to be bigger, improves the bearing capacity and the service life of handbag simultaneously.

The utility model relates to the technical field of fabricated steel structure, disclose a kind of fixed structure and the connecting joint of modular steel structure, fixed structure includes at least one first connecting piece, first connecting piece includes plug-in board, connecting plate and support plate, at least one horizontal direction extension slot is provided on plug-in board, connecting plate is fixed in the top side of plug-in board;The plug-in board of each slot lower part is fixed with support plate, and support plate is in contact with steel beam flange plate up and down.The connecting joint of modular steel structure includes fixed structure and second connecting piece, first connecting part inserts and is tightly attached on the inner wall of upper column;Second connecting part inserts and is tightly attached on the inner wall of lower column;Steel beam flange plate inserts each slot, connecting plate is fixedly connected with second connecting piece, and steel beam flange plate is in contact with support plate up and down.The utility model structure is simple, connection is reliable, easy to disassemble, solve the technical problem of the load bearing capacity of weakening steel beam and steel column in the prior art hole, reduce the safety of connecting joint.

The invention provides a wear-resistant epoxy resin composite material and a preparation method thereof, the wear-resistant epoxy resin composite material comprises an epoxy resin matrix material, and first particles and second particles dispersed in the epoxy resin matrix material, the first particles comprise mineral dispersion filler particles and polyvinyl alcohol transition layers wrapping the surfaces of the mineral dispersion filler particles; the second particles comprise dispersed polyethylene particles and plasticized polyethylene layers wrapping the surfaces of the dispersed polyethylene particles. According to the invention, a polymer based on the epoxy resin binder is synthesized in the form of modified dispersed filler, heat treatment is carried out, and the wear resistance and load capacity of the composite material are improved by increasing the mutual bonding effect of phase separation boundaries in an epoxy resin binder-dispersed filler system.

The invention provides a creeping prevention structure of a sliding rail retainer. The creeping prevention structure comprises a first sliding rail, a second sliding rail and the retainer, the first sliding rail and the second sliding rail extend along a movement direction, a first opposite side of the first sliding rail is opposite to a second opposite side of the second sliding rail, and the first opposite side and the second opposite side are concavely provided with a first rail surface and a second rail surface; the retainer extends along the movement direction and is provided with a plurality of rolling bodies, and the rolling bodies roll on the first rail surface and the second rail surface, so that the retainer, the first sliding rail and the second sliding rail move relative to each other. The retainer is pivoted with a tooth-shaped wheel, a plurality of first and second bulges are fixedly arranged on the first and second opposite sides outside the first and second track surfaces at intervals, the first and second bulges are positioned on the opposite sides of the tooth-shaped wheel on the circumference, and the tooth-shaped wheel is meshed with the first and second bulges; and the retainer is prevented from creeping on the first sliding rail and the second sliding rail.

The invention discloses a marine folding arm crane and a using method thereof, and relates to the technical field of cranes. The folding arm crane for the ship comprises a first split base installed at the position, close to a bow, of a deck, and further comprises a crane arm which comprises a fixed arm fixed to the upper portion of the first split base, a large lifting arm rotationally installed at the upper end of the fixed arm and a small lifting arm rotationally installed at the other end of the large lifting arm. A hydraulic cylinder used for pushing and pulling the lifting large arm is arranged on the first split base. The cargo lifting hook assembly is arranged on the split base I and the crane boom; the second split base is located on the side, close to the center of the deck, of the first split base, according to the marine folding arm crane and the using method thereof, when the small lifting arm is lifted, the force bearing point is located on the second split base, and when the small arm driving piece lifts goods, the force bearing points of the goods are dispersed on the first split base and the second split base; the crane boom is prevented from toppling.

A method for ecologically filling a road embankment with high-strength steel wire mesh reinforced materials is to use a high-strength steel wire mesh with a folded angle and an inverted cover surface to lay it at the roadbed filling position; from the bottom layer of the paving, the high-strength steel wire mesh is laid horizontally in sections, and the edges of each section of the high-strength steel wire mesh are twisted and connected; a plant ecological mat is laid along the folded angle of the high-strength steel wire mesh and backfilled with planting soil; soil is filled on the high-strength steel wire mesh, and the layered filling is carried out according to the compaction thickness not exceeding 30 cm; after the filling thickness reaches the designed reinforcement mesh spacing, the inverted cover surface is folded and fixed to the filling compaction surface, and plant strips with roots are inserted; the above operation is repeated to continue filling until it approaches the top of the roadbed; a crushed stone drainage layer is set on the lower high-strength steel wire mesh, and a geotechnical material drainage mat is set, and the geotechnical material drainage mat is connected to the crushed stone drainage layer; finally, grass seeds are planted on the outer slope of the plant ecological mat. This filling method can be used for steeper roadbed fill slopes, and has the characteristics of stable filled roadbed structure and good landscaping effect of roadbed slopes.

This application provides a motor vibration control method and an electronic device (100), and relates to the field of terminal technologies. This can implement vibration of a motor (191) when a loading capability of a battery (142) is low. The method includes: A battery status is obtained when a first motor vibration waveform vibration request is received. The battery status includes a battery temperature, a battery temperature and a battery level, or a battery power supply capability. A motor vibration parameter is switched if the battery status meets a preset condition, where the preset condition is that the battery power supply capability is lower than a first threshold, the battery temperature is lower than a second threshold, or the battery temperature and the battery level are lower than a third threshold array. The motor vibration parameter includes a motor vibration waveform or a motor vibration input voltage. The motor (191) is driven to vibrate based on a switched motor vibration parameter.

The present invention discloses a monitoring device for online monitoring the bearing capacity of a distribution network frame, comprising a utility pole, wherein the upper end of the utility pole is connected with an angle steel, an insulator is arranged on the top of the angle steel, a transmission line is embedded and installed on the top of the insulator, the upper end of the utility pole is located above the angle steel and is fixedly connected with a slack adjustment module, a tension monitoring component is arranged on the top of the slack adjustment module, and a detection mechanism is arranged at one end of the tension monitoring component. In the above scheme, the degree of arc sag of the transmission line is monitored by the detection mechanism, so that the inspection personnel can understand the bearing capacity of the distribution network frame at the first time, take corresponding measures to repair in time, realize real-time monitoring, reduce the number of inspections and workload, realize automatic cleaning of ice and snow, improve the bearing capacity of the transmission line, relax the tension of the transmission line, thereby adjusting the tightness of the transmission line, making the transmission line more relaxed, avoiding the transmission line being too tight and causing breakage, thereby creating time for the arrival of the repair personnel.

The metal expansion joint comprises a left steel beam and a right steel beam which are fixedly arranged underground, upper fixing grooves are formed in the opposite side faces of the left steel beam and the right steel beam, and metal plates are fixedly arranged in the upper fixing grooves; the middle part of the metal plate is bent upwards; a lower fixing groove is formed in the steel beam, an abutting plate is fixedly arranged in the lower fixing groove, and the middle of the abutting plate is bent upwards. According to the application, the upwards bent metal plate and the abutting plate are arranged on the steel beam, so that the bearing capacity of the metal plate can be improved when the expansion joint becomes narrow, and when the expansion joint becomes wide, the abutting plate abuts against the lower part of the metal plate, so that the bearing capacity of the metal plate is prevented from being greatly reduced.

The application discloses a rock breaking cutter mounting structure, comprising a turnover frame, one end of the turnover frame being hinged on a drill bit stand, the other end of the turnover frame being fixedly connected with a cutter assembly, and the cutter assembly being detachably connected with the drill bit stand; the cutter assembly is turned from facing a rock breaking working face to being away from the rock breaking working face through the turnover frame, so that the dismounting direction of the cutter assembly is turned from facing the rock breaking working face to being away from the rock breaking working face. Through the turnover frame which can be turned in a rotary direction and the related structure, the rock breaking cutter mounting structure can turn the downward dismounting direction to the upward direction under the premise that the heading machine does not move upward or moves a small distance, the space inside the drill bit is utilized, and the dismounting operation is convenient and efficient; in addition, the rock breaking cutter mounting structure can also ensure stable operation of the cutter and convenient operation.

The invention relates to the technical field of torpedo anchors, in particular to a recyclable umbrella type torpedo anchor. The device comprises a mooring line, an auxiliary cable, a torpedo anchor shell, a wing plate, a restraint ring, a core tube, a traction strip and a limiting snap ring, the top of the torpedo anchor shell is connected with the mooring line, a conical head is arranged at the bottom of the torpedo anchor shell, the core tube is composed of a plurality of tube petals, the bottom of each tube petal is hinged to the conical head, the wing plate is hinged to the torpedo anchor shell, and the limiting snap ring is connected with the wing plate through the traction strip. The auxiliary cable is connected with the restraint ring; when the torpedo anchor is thrown, the wing plate clings to the torpedo anchor shell; when the torpedo anchor works, the wing plates are opened in an umbrella-shaped structure; when the torpedo anchor is recycled, the umbrella-shaped structure of the wing plate is damaged through the auxiliary cable. According to the device, the torpedo anchor and the umbrella-shaped structure are fused, the device penetrates into the seabed with small resistance, the umbrella-shaped structure is opened to improve the bearing capacity after the device is subjected to the tension of the mooring line, and the umbrella-shaped structure is damaged due to loss of constraint after the auxiliary cable is tensioned, so that the bearing capacity is reduced, and the device can be smoothly recycled.

The invention discloses a patch type slip structure for anchoring a high-strength casing of an oil-water well. The problems that an existing integrated slip is not firm in anchoring with a casing due to insufficient strength, and the cost is increased due to the fact that the slip is easy to break are mainly solved. The slip is characterized in that two slip grooves (11) are formed in the slip base body (1), the slips (2) are arranged in the slip grooves (11) respectively, and a spring piece (6) is connected to the side, opposite to the slips (2), of the slip base body (1). According to the patch type slip structure for anchoring the high-strength casing pipe of the oil-water well, the slip base body and the slip are separately machined, machining is convenient, cost is reduced, and the strength of the slip is improved so that the slip can not be broken easily.

The utility model relates to the technical field of fiber godets, and particularly discloses a positive drafting godet anti-breakage mechanism which comprises a vertical plate and a round rod, a sliding groove is formed in one side of the upper end of the vertical plate, a sliding block is connected in the sliding groove in a sliding mode, and the lower end of the sliding block is elastically connected with an installation block. One end of the round rod penetrates through the mounting block and is rotationally connected with the mounting block through a bearing, a baffle is mounted at one end of the round rod through a fastening bolt, the outer wall of the round rod is sleeved with a stepped sleeve, one end of the stepped sleeve is connected with the baffle, and the other end of the stepped sleeve is fixed to the round rod through a connecting bolt. The downtime, the fracture, falling off, bypassing and other phenomena of the drawing roller are obviously reduced, the fiber strength is maintained to be not lower than 2.60 cN / dtex, the single yarn strength of spinning is obviously improved, + 200% neps and 100,000-meter yarn faults are obviously reduced, and the product quality is improved.

The utility model relates to the technical field of house reinforcement, and discloses a house building transformation reinforcement structure which comprises a house body, a plurality of supporting beams perpendicular to the ground are erected outside the house body, and cross beams are horizontally installed between the adjacent supporting beams. The same mounting plate is mounted among the multiple cross beams located on the same horizontal plane, a plurality of supporting plates used for reinforcing the wall face are mounted on one side of the mounting plate, and fastening assemblies used for reinforcing the supporting plates are arranged on the sides, away from the house body, of the supporting plates. The supporting beams, the cross beams, the mounting plates and the supporting plates are arranged outside the house, the wall faces of the house can be reinforced through the multiple supporting plates, and therefore the house is reinforced, the situation that cracks in the house continuously become large is reduced, and the service life of the house is prolonged; the extension rods and the supporting rods are arranged on the cross beams, the house body can be supported through the extension rods and the supporting rods, and the bearing capacity of the house is reduced.

The present invention is used for bolting a beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels, and relates to the technical field of assembled concrete structures in the construction industry, and in particular to a beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels connected by bolts. The present invention includes: a beam end connection part, a beam end anchoring part, and a connection assembly; the beam end connection part is a vertical bending resistance structure, which is consistent with the cross-sectional shape of the beam anchored by the concrete part; the beam end connection part is fixedly connected to the front end of the beam end anchoring part by welding to form an integrated beam end connection structure; the beam end connection parts of two opposite beam end connection structures are connected as a whole by a connection assembly. The technical solution of the present invention solves the problems in the prior art: it cannot be reused; the bearing capacity is small, and it is only suitable for structures supported by wall panels; it cannot ensure the safety of large spans and complex structures; it cannot ensure the construction accuracy of the node connection, and reduces safety.

The invention discloses a tilting propeller device of a helicopter, belongs to the technical field of helicopter instrument production, and aims to solve the technical problem of how to provide a propeller device which is not provided with a hinge structure and can generate lift force and thrust force for the helicopter. According to the technical scheme, a long shaft and a short shaft are installed at the two ends of a framework of a cross-shaped annular track and on the outer side of the track respectively, a large gear and a bearing are installed on the long shaft, a bearing is installed on the short shaft, and a small gear of a tilting motor is meshed with the large gear to control tilting of the annular track. The motor is mounted above the center of the cross-shaped annular track and at the lower end of the transmission shaft and below the track, the turntable is provided with a plurality of paddles and rollers, and the rollers are in contact with the lower part of the annular track; lift force is generated when the blades rotate, the lift force is transmitted to the helicopter body through the idler wheels, the annular track and the supporting frame to provide lift force for the helicopter, and forward thrust can be generated when the propellers tilt. The propeller device is suitable for helicopters and vertical take-off and landing unmanned aerial vehicles.

The utility model relates to a cornice aluminum plate construction system which comprises a sliding rail, the sliding rail is connected with a canopy secondary purline and arranged in the axial direction of a cornice, the sliding rail is slidably connected with a construction platform, and the top of the construction platform is located below the cornice and inclines in the inclination direction of the cornice. A storage platform is arranged on the construction platform close to the indoor side. Through the arrangement of the sliding rail and the construction platform, operation procedures are reduced, safety risks of cross operation and high-altitude operation are reduced, meanwhile, operation conditions are created for operation of other types of work, and the installation efficiency of the curtain wall cornice aluminum plate is improved to a great extent; the shape of the cornice keel can be processed in advance on the ground, so that quality inspection is facilitated, and the construction quality can be better ensured; the method is suitable for construction operation with low foundation bearing capacity, narrow working face and no mechanical operation space.

The invention discloses a propeller device of a helicopter, belongs to the technical field of helicopter instrument production, and aims to solve the technical problem of how to provide a propeller device without a hinge structure and a blade protection facility for the helicopter. According to the technical scheme, an installation frame is arranged on one side of a cross-shaped annular rail and can be horizontally installed on the two sides above a machine body, a motor (engine) is installed above the center of the cross-shaped annular rail, a transmission shaft downwards penetrates through a transmission shaft hole to the position below the rail, a rotary disc is installed at the lower end of the transmission shaft, a plurality of paddles and rollers are installed on the rotary disc, and the rollers make contact with the position below the annular rail; when the motor drives the blades to rotate, the idler wheels roll and rotate along the lower portion of the cross-shaped annular rail to generate lift force, and the lift force is transmitted to the helicopter body through the idler wheels, the annular rail and the installation frame to provide lift force for the helicopter. The propeller device is suitable for helicopters and vertical take-off and landing unmanned aerial vehicles.

The present invention relates to a group synchronous lifting structure for construction machinery and building construction, comprising a lifting column, an upper climbing frame and a lower climbing frame, the outer sides of the upper climbing frame and the lower climbing frame are both provided with standard interfaces, the upper climbing frame is detachably connected to a steel platform vertically, the lower climbing frame is detachably connected to a truss platform and an operating platform vertically, the upper climbing frame is connected to the lifting column through an upper stepping device, a guide mechanism is provided on the inner side of the upper climbing frame, the upper climbing frame comprises an upper climbing frame upper and an upper climbing frame lower, the upper climbing frame upper and the upper climbing frame lower are connected through an upper climbing hydraulic cylinder, the upper stepping device comprises a stepping block connected to the lifting column and an upper stepping turning device connected to the upper climbing frame, the upper stepping turning device is hinged to the outer side of the upper climbing frame, and the structure and connection relationship of the lower climbing frame are similar to those of the upper climbing frame. The present invention sets two groups of climbing frames, reduces the manufacturing cost of the climbing hydraulic cylinder; each layer of the platform can be independently lifted and lowered, improves efficiency, and is easy to manufacture and transport.

The utility model provides a reinforcing device for a wood beam frame node of an ancient building, belongs to the field of reinforcing of the ancient building, and is used for solving the problems that a tenon-and-mortise node of a wood structure is prone to tenon pulling, and a wood component is damaged and secondarily damaged in a traditional reinforcing mode. The device comprises a hoop assembly, adjustable profile steel, an adjustable wooden column limiting telescopic rod piece and a spring damper assembly, the spring damper and the limiting rod piece are additionally arranged in the hoop assembly, the adjustable profile steel is inserted into the outer side of the hoop assembly in a nested mode, the adjustable profile steel is arranged on a beam column in a sleeving mode, the hoop assembly is arranged on the wooden column, and the limiting telescopic rod piece is arranged on the wooden column. Through nested connection of the profile steel and the hoop, excessive rotation of the joint can be effectively limited, and repeated drawing and damage to the beam frame are avoided; meanwhile, under the action of strong shock, the energy consumption effect can be achieved through repeated drawing of the tenon, however, if the tenon pulling amount is too large, the bearing capacity of the joint can be reduced, and the phenomenon of tenon disengaging can be avoided, the joint is guaranteed to enter the elastic-plastic large deformation stage through combined limiting of the adjustable profile steel and the hoop assembly, tenon disengaging damage is avoided, and the joint can continue to work stably.

The application provides a shear-resistant mounting structure of a continuous composite floor and a steel beam and a mounting method thereof, and belongs to the field of fabricated buildings. The structure comprises a steel beam, a prefabricated composite bottom plate and a shear-resistant connecting pipe. The prefabricated composite bottom plate is laid on the steel beam and is a continuous structure at least at a position corresponding to the steel beam, and a post-poured floor layer is formed above the prefabricated composite bottom plate. The shear-resistant connecting pipe penetrates the prefabricated composite bottom plate and is arranged at a position corresponding to the steel beam. After the prefabricated composite bottom plate is installed, the upper flange of the steel beam is welded through the space in the pipe of the shear-resistant connecting pipe. The shear-resistant connecting pipe is engaged with the prefabricated composite bottom plate and the post-poured floor layer to provide the shear-resistant capacity between the steel beam and the floor.

The large-load fastener capable of being automatically locked comprises a frame, installation rods are symmetrically arranged between the two sides of the frame, and installation rings are installed on the outer sides of the installation rods. Adjusting mechanisms are symmetrically arranged between the frames, and supporting mechanisms are arranged at the top ends of the frames. Wherein the adjusting mechanism comprises a two-way screw which is in threaded connection with the interior of the frame, limiting rods are symmetrically and fixedly connected to one end of the frame, one ends of the limiting rods penetrate through the frame to be in sliding connection, fixing plates are symmetrically installed on the corresponding sides of the frame, and fixing boxes are obliquely and symmetrically installed in the fixing plates; through the resetting performance of the first telescopic spring, the tooth block is in meshed connection with the spiral teeth on the outer side of the two-way screw rod, so that the adjusted two-way screw rod can be fixed and limited, the situation that the column formwork shakes due to external force factors can be effectively avoided, then the extra load borne by the frame is reduced, and the fixing effect of the column formwork is improved.

The utility model belongs to the technical field of pile foundation detection, and particularly relates to a self-balancing load box with a pile foundation longitudinal bar repairing function, which comprises an upper bearing plate, a lower bearing plate and a balancing load box shell, the balancing load box shell is mounted between the upper bearing plate and the lower bearing plate, a clamping groove is formed in the upper side of the balancing load box shell, and a clamping groove is formed in the lower side of the balancing load box shell. Clamping blocks matched with the clamping grooves are arranged on the lower side of the upper bearing plate, the clamping blocks are vertically inserted into the clamping grooves and are in sliding connection with the clamping grooves, a jack is connected to the center between the upper bearing plate and the lower bearing plate through bolts, and the upper side of the telescopic end of the jack is connected with the upper bearing plate; longitudinal bars are evenly installed on the edge of the outer side between the upper bearing plate and the lower bearing plate, the longitudinal bars penetrate through the upper bearing plate and the lower bearing plate, the structure is simple, operation is easy, the requirement for working environment conditions is low, working is stable, and the danger that the bearing capacity of a pile foundation is reduced due to breakage of the longitudinal bars can be avoided.

The present application relates to a kind of porcelain post circuit breaker production test system, including conveying unit, the conveying unit includes conveying guide rail and reciprocatingly moves on conveying guide rail shuttle;Along the conveying direction of conveying unit, total assembly unit, inflation unit, leak detection unit, withstand voltage test unit, supervision unit are sequentially distributed;Tray, for placing porcelain post circuit breaker, realize porcelain post circuit breaker between shuttle, total assembly unit, inflation unit, leak detection unit, withstand voltage test unit, supervision unit circulation.The present application has the advantages that: by the cooperation between conveying unit, total assembly unit, inflation unit, leak detection unit, withstand voltage test unit, supervision unit, with conveying unit as the intermediate medium of transmission, realize the sequential circulation of porcelain post circuit breaker between different units, facilitate circuit breaker withstand voltage, leak detection test, avoid the phenomenon of missed detection.

The utility model belongs to cleaning robot technical field, concretely relates to a kind of cleaning robot water supply and drainage device, including two arc plates, two the arc plate between hinged, two the arc plate forms annular structure, the arc plate side wall is respectively movably connected with several ball bearings, the arc plate opposite side wall is evenly provided with elastic compression assembly, two the arc plate is provided with locking assembly away from hinged position one end. Elastic compression assembly includes clamping plate, the clamping plate is arc, the clamping plate mutually away from one side wall is respectively fixedly connected with two limit rods, the limit rod other end is evenly movably connected with arc plate. The utility model can reduce the friction between water supply and drainage pipeline and the pipeline to be cleaned, facilitate cleaning robot to clean in pipeline interior, reduce the load capacity of cleaning robot driving part simultaneously, prolong the service life of cleaning robot.