4575 results about "Bolt connection" patented technology

The application discloses a damping-adjustable hydraulic bushing and a control method thereof. The damping-adjustable hydraulic bushing is composed of a hydraulic bushing body and a solenoid valve. The hydraulic bushing body comprises a bushing support, a main spring rubber, a cast aluminum inner tube, an aluminum outer tube and a cage-shaped framework. The cast aluminum inner tube, the main spring rubber and the aluminum outer tube are coaxially arranged from inside to outside. The cage-shaped framework is arranged in the main spring rubber and used for supporting the main spring rubber. Two flow channel plates are assembled between the aluminum outer tube and the main spring rubber, so that a brake liquid chamber and an acceleration liquid chamber are formed between the main spring rubber and the flow channel plates respectively. A brake flow channel on the brake side flow channel plate cooperates with an acceleration flow channel on the acceleration side flow channel plate to form a passage. A connecting bridge is arranged on the cage-shaped framework. The solenoid valve is connected to the connecting bridge through bolts. An axial actuating hole is arranged on the cage-shaped framework. An actuating rod is arranged in the axial actuating hole and controlled by the solenoid valve.

The utility model discloses a geological drilling coring device which comprises a frame body, a placing table is installed on the upper portion of the frame body in a sliding mode, a motor is connected to the upper portion of the placing table through bolts, the motor is connected with a transmission shaft through a belt, a coring barrel is fixedly connected to the bottom of the transmission shaft, and a drill bit is fixedly connected to the bottom of the coring barrel. A cutting-off structure is arranged in the coring barrel and comprises a cavity and a first gear, a sliding block is slidably installed in the cavity, a rack is fixedly installed on the upper portion of the sliding block, a second gear is rotatably installed in the cavity, the second gear is connected with the rack in a meshed mode, and a double-face gear ring is rotatably installed at the upper position in the cavity. The double-face gear ring is connected with the second gear in a meshed mode, the double-face gear ring is connected with the first gear in a meshed mode, and a rotating shaft is fixedly installed at the top of the first gear. According to the geological drilling coring device disclosed by the utility model, a required core sample can be completely stored in the device.

Provided are a short-cut carbon fiber composite (SCFC)-high strength steel (HSS) hybrid bionic structure battery box and its integrated forming method. A SCFC-HSS hybrid bionic structure lower box body includes a lower box framework made of high strength steel and a SCFC lower box matrix; and an upper box body and the lower box are connected by bolts to form a complete SCFC-HSS hybrid bionic structure battery box. A high strength steel lower box framework scheme is designed based on the principle of bionics, then welding and surface treatment are carried out to obtain a bionic lower box framework structure, and the bionic lower box framework structure is placed in a mold for integrated injection molding using a SCFC matrix material.

The utility model discloses a direct drive transmission tool magazine which comprises a mounting plate, a transverse moving plate is slidably connected to the position, close to the right side, of the front wall of the transverse moving plate, a vertical moving plate is slidably connected to the position, close to the right side, of the front wall of the transverse moving plate, and a first butt joint plate is connected to the position, close to the top, of the front wall of the vertical moving plate through bolts. A support is connected to the position, close to the bottom, of the front wall of the vertical moving plate through bolts, the top of the first butt joint plate is connected with a DD direct drive motor through bolts, the bottom of the support is movably connected with a rotating disc through a rotating shaft and a bearing, and the top end of the rotating shaft on the top of the rotating disc penetrates through an inner ring of the bearing to be connected to an output of the DD direct drive motor. And a limiting block is arranged on the turntable. According to the technical scheme, the DD direct-drive motor is adopted, the DD direct-drive motor does not need to be connected with a speed reducer to rotate to the cutter head, the connection and transmission efficiency of the DD direct-drive motor is improved, and the cutter head can be effectively prevented from shaking during rotation through the arranged limiting block.

The utility model relates to an enlarged type metal composite viscoelastic damper. The bottom of a metal damper is fixedly connected with an enlarged type viscoelastic damper. The metal damper comprises a T-shaped core plate, L-shaped restraining plates are fixedly connected to the two opposite sides of the T-shaped core plate in the vertical direction, friction areas are arranged between the tops, located on the vertical plane, of the L-shaped restraining plates and the T-shaped core plate, fixing areas are arranged between the bottoms of the L-shaped restraining plates and the T-shaped core plate, and energy dissipation webs are arranged on the portions, between the fixing areas and the friction areas, of the T-shaped core plate. The amplified viscoelastic damper comprises an upper connecting plate, an amplifying lever is hinged to the lower portion of the upper connecting plate, an inner steel plate is hinged to the lower portion of the amplifying lever, the inner steel plate is connected with an outer steel plate through a viscoelastic layer, and the outer steel plate is hinged to the amplifying lever through a fulcrum shaft. The defects of a metal damper can be overcome under small earthquakes, good energy consumption is achieved, the amplifying damper can be protected against excessive displacement and failure under large earthquakes, the damper consumes energy in a multi-stage mode, and the anti-seismic performance of the structure is improved. The components are connected through bolts, are highly assembled and are convenient to replace.

The utility model discloses a bolted assembly type airport pavement structure, which comprises a plurality of adjacent prefabricated concrete upper cover plates and a plurality of prefabricated concrete base plates, the prefabricated concrete upper cover plates and the prefabricated concrete base plates are in bolted connection, each prefabricated concrete upper cover plate comprises an upper cover plate central part and four flange parts, the upper cover plate central part is a cube with the thickness of h, four flange parts with the thickness of h / 2 are arranged on the upper edges of the four side edges of the central part of the upper cover plate and partially extend outwards, the length of the long edge of each flange part is smaller than that of the central part of the upper cover plate, and the adjacent flange parts are not connected with each other; a boss is formed in the middle of the square precast concrete base plate with the thickness of h / 2, and the top face of the boss and the top face of the precast concrete upper cover plate are spliced to form a complete plane. The connecting mode is simple and practical, assembling and disassembling operation is easy and convenient, force transmission performance is excellent, and the stress requirement of an airport pavement structure is completely met.

The invention discloses an assembly type steel structure connection quality detection method and system, and relates to the technical field of steel structure assembly and intelligent detection, and the method comprises the steps: collecting node vibration, strain and image signals, carrying out the preprocessing, and constructing a detection data set; calculating characteristic parameters of connection of the bolt and the weld joint based on the detection data set, and outputting a comparability index through normalized mapping; performing weighted synthesis on the comparability index of the bolt connection index and the weld joint connection, generating a node quality score, and establishing a grading threshold parameter; and calling a node quality score and a grading threshold parameter, executing a segmentation judgment function to output a node quality grade, and executing data verification on a segmentation judgment function result. According to the method, multi-source signals are synchronously collected and subjected to standardized processing, the connection characteristics of bolts and welding seams are fused, a unified quality scoring and grading judgment system is established, and quantitative and traceable evaluation of the connection quality of the fabricated steel structure is achieved.

A fastening arrangement having a fastening element for elastically connecting a bolt-on part to a support part. The fastening element has a head section (7) that transitions into an element shank. An elastomer profile part with a retaining groove which is open radially to the outside, into which a retaining foot of the bolt-on part can engage, is arranged on the underside of the head section. The retaining groove is designed with a groove wall on the head side and a groove wall on the shank side. The elastomer profile part is constructed in at least two parts from an elastomer body arranged on the head section of the fastening element and from a disk element that has at least the shank-side groove wall of the retaining groove. The disk element is also composed of two components, namely the elastomer profile part and the hard component.

Disclosed is a fastening and straightening apparatus for transplanted trees. The apparatus includes an outer hoop, inner hoops and support legs. A plurality of the inner hoops are arranged in the outer hoop. The inner hoops are arc metal plates. A connecting rod is arranged on each inner hoop. The connecting rods are arranged on the outer hoop in a passing manner. Second ear plates are arranged onthe outer wall of the outer hoop. Each support leg is connected to the corresponding second ear plate through a third fixing bolt. The outer hoop consists of two semi-circular annular metal plates. Afirst ear plate is arranged on one end of the each of the two semi-circular annular metal plates. Second fixing bolts pass through the corresponding two ear plates to fix the two semi-circular annular metal plates. The other ends of the two semi-circular annular metal plates are hinged to each other by hinges. The connecting rods are threaded rods. A first fixing bolt is arrange on one section, located on the outer side of the outer hoop, of each connecting rod. Each third fixing bolt is a bolt with a smooth section. Through the adoption of the structure, the stable fastening and straightening work of the transplanted trees is realized, and skewing and collapsing problems of the trees happening in the tree growth process can be effectively avoided.

The utility model relates to the technical field of punch forming equipment, and discloses a support punch forming device which comprises a punching table, supporting columns and foot columns are fixedly connected to the top face of the punching table, a lower die base is connected to the tops of the foot columns through bolts, a top plate is fixedly connected to the top ends of the supporting columns, and a connecting plate is fixedly connected to the lower surface of the top plate. The bottom end of the connecting plate is connected with a T-shaped rack through a bolt, the T-shaped rack is connected with a gear in an engaged mode, and a shaft rod is fixedly connected into the gear. A plate is placed on the lower die, the hydraulic cylinder is started to drive the upper die base to move downwards to achieve die assembly stamping, meanwhile, the upper die base moves downwards to drive the fixing block, the shaft rod and the gear to move, under meshing of the T-shaped rack, the gear rotates to drive the shaft rod and the stop rod to rotate, the stop rod sweeps the area between the upper die and the lower die when rotating, and once a hand is located in the dangerous area, die assembly stamping is achieved. And when the operator moves, the operator can be touched by the stop lever made of the flexible plastic material, so that the operator is timely reminded to move away hands, and safety accidents are effectively avoided.

The invention relates to the technical field of image segmentation, provides an image segmentation method and system for a cantilever system of a high-speed rail overhead line system supporting device, and solves the problems that defects in a metal part cannot be detected, and the defect recognition precision is low under high-frequency vibration noise interference. The method comprises the following steps: scanning a metal part of the cantilever system to generate a three-dimensional image, and collecting a stress wave signal of the surface of the metal part under the action of a dynamic load; based on the cyclic load parameter of the metal part, extracting the spectrum characteristic of the stress wave signal, and determining the energy distribution characteristic of the bolt joint by combining the geometric structure parameter of the bolt joint of the metal part; and fusing the three-dimensional image, the energy distribution characteristics, the temperature rise abnormal region and the electric field intensity distribution to generate a multi-source data set, and generating respective segmentation results of the fatigue crack and the insulation aging defect of the metal part in combination with the cyclic load parameters. According to the invention, high-precision collaborative segmentation of metal fatigue cracks and insulation aging defects of the cantilever system is realized.

The invention relates to the technical field of bolt connection fatigue life prediction, in particular to a high-strength bolt connection fatigue life prediction method and system, and the method comprises the steps: obtaining a bolt entity morphology discrete point cloud, and generating a continuous geometric topology function through non-uniform rational B-spline interpolation reconstruction; discretizing the standard thread parameters to construct a standard finite element model, calculating a normal spatial position difference value based on a continuous geometric topology function, and packaging to generate a geometric defect mapping tensor; according to the converted node coordinates, constructing a real morphology finite element model; solving the nonlinear equilibrium equation by utilizing a penalty function method, and generating a contact stiffness characteristic matrix; calculating an axial load distribution sequence and executing gradient convolution operation, and extracting a local field variable peak value; and calculating an accumulated damage index in combination with a damage evolution equation and outputting a predicted life. By mapping the entity discrete point cloud into a finite element geometric defect tensor and reconstructing a real morphology model, the accurate prediction of the fatigue life of the bolt considering the micromachining deviation influence is realized.

The invention belongs to the technical field of winch joint fatigue test, and discloses a fatigue test device for an electric winch joint of a search and rescue helicopter, which comprises a bottom fixing plate fixedly connected to a bearing ground rail of a plant; the test piece boundary simulation frame is fixedly connected to the bottom fixing plate, the winch joint test piece is arranged in the test piece boundary simulation frame, and the real use state of the search and rescue helicopter winch joint is simulated; one end of the dowel bar false piece is inserted into the winch joint test piece and is fixedly connected with the winch joint test piece through an anti-loosening bolt; the two loading assemblies are connected to the dowel bar false piece in parallel, and a certain distance is formed between the two connecting point positions; and the three bearing handle assemblies are respectively connected to the other ends of the two loading assemblies and the dowel bar false piece. According to the invention, the problem that the fatigue test cannot be carried out on the winch joint in the prior art is solved, and effective data support is provided for structural design and improvement and life evaluation of the winch joint of a search and rescue helicopter.

The utility model relates to the technical field of glass fibers, and particularly discloses a raw material mixing device for glass fiber production capable of preventing dust from splashing, which comprises a shell, the upper surface of the shell is open, the lower end of the shell is of an inverted circular truncated cone structure, a shell cover is arranged above the shell, a feeding pipe is arranged on the surface of the shell cover in a penetrating manner, and the feeding pipe is communicated with the shell cover. A discharging pipe is arranged on the lower surface of the shell in a penetrating mode, and valves are arranged in the feeding pipe and the discharging pipe correspondingly to control opening and closing. According to the raw material mixing device capable of preventing dust from splashing and used for glass fiber production, the shell and the shell cover are arranged in a split mode and connected through bolts, the shell cover is clamped with a first clamping groove in the outer surface of the shell, and a sealing strip is arranged in the first clamping groove and makes contact with the shell cover, so that the sealing performance is enhanced after the shell and the shell cover are connected; therefore, the situation that the raw materials are splashed to the outside due to gaps of the device in the mixing process is avoided, pollution to the workshop environment is avoided, and cleanness of the production environment is guaranteed.

The invention discloses a quick tool changing device and an automatic tool setting device for impeller cutting, which comprise a material positioning and control assembly, a milling mechanism, a cooling assembly, a clamping tool changing part and a standby tool magazine part, the material positioning and control assembly comprises a bed table, a carrying plate, a material carrying table, an electric clamp, a bed frame, a first pneumatic door plate, a control panel and a bed top plate, the upper portion of the middle of the bed table is in bolted connection with the bed frame provided with the first pneumatic door plate, and the bed table and the bed top plate are in bolted connection through the bed frame and are divided into two areas; a carrying plate is arranged on the top side of one area of the bed table. According to the device disclosed by the invention, after output operation of an electric gear is mainly utilized, a gear ring is operated, and then a carrying edge block is rotated to a proper position; and after the pneumatic locking strip is used for unlocking, a user drags the standby cutter head and the standby cutter out of the carrying edge block integrally, so that the standby cutter head can be replaced while the cutter is replaced.

The application relates to a rectangular narrow-channel lead-bismuth alloy flow heat exchange experimental device and an experimental method. The application is used to solve the problem that the existing experimental device cannot meet the demand of the research on the flow heat exchange characteristics of lead-bismuth alloy in a rectangular narrow channel. The flow direction of the lead-bismuth alloy in the experimental section is from top to bottom. The inlet and outlet cylindrical chambers and the rectangular variable-diameter passage of the experimental section are fixed by welding and an external mechanical fixing device. The rectangular narrow channel is composed of stainless steel sheets. The inner side of the narrow side of the channel is supported and sealed by a first-stage stainless steel pad. The outer side is supported and fixed by a second-stage stainless steel fixing pad through bolt connection. The third-stage sealing is realized by smearing high-temperature-resistant sealing glue between the stainless steel pad, the bolt and the bolt gap. The rectangular narrow-channel sheet is heated by an indirect electric heating mode. The application is used for the flow heat exchange experiment of lead-bismuth alloy.

The utility model discloses a mould surface milling device which comprises a bottom plate and a milling cutter, cushion blocks are connected to the positions, close to the left side and the right side, of the bottom of the bottom plate through bolts respectively, a U-shaped plate is connected to the middle of the top of the bottom plate through bolts, and side plates are connected to the positions, close to the left side and the right side, of the top of the bottom plate through bolts respectively. And through grooves are formed in the side walls of the side plates, the tops of the two side plates are connected with the same top plate through bolts, shells are slidably connected to the positions, close to the left side and the right side, in the U-shaped plate correspondingly, and the bottoms of the shells are open. According to the technical scheme, the inverted-U-shaped connecting block, the shell, the positioning roller, the electric push rod and other components are matched with one another, so that the position of the milling machine can be effectively limited, the milling machine is not prone to position deviation in the milling process, the stability of the milling machine is improved, effective conveying can be carried out, effective and uniform milling can be carried out, and the milling efficiency is improved. And the milling efficiency and the use efficiency are improved.

The utility model relates to hairpin heat exchanger technical field, and disclose a kind of hairpin heat exchanger structure, including first shell, second shell and third shell, the first shell, second shell and third shell are connected in proper order, and connecting mechanism is provided on first shell, second shell and third shell, and connecting mechanism is convenient for the shell disassembly of hairpin heat exchanger, and connecting mechanism includes connecting plate and connecting cover, the connecting plate is fixedly installed in one end of third shell, the connecting cover is sealed with connecting plate Connection, by the straight section shell of hairpin heat exchanger is set to multistage type connection, every section straight section shell is conveniently disassembled and stands, to facilitate subsequent cleaning inside straight section shell, by the connecting cover of heat exchange pipe U section setting, and connecting cover is sealed with straight section shell by bolt connection, not only can the heat exchange pipe U section be wrapped cover into inside, and connecting cover is conveniently disassembled and stands, to facilitate subsequent cleaning inside connecting cover.

The utility model relates to the technical field of elevator derricks, in particular to an inward bending steel structure derrick for installing an elevator, which comprises a base, a derrick I and a plurality of derricks II, the derrick I is fixedly arranged at the top of the base, and the plurality of derricks II are fixedly arranged at the top of the derrick I in sequence. A plurality of stand columns and cross beams are arranged in the base, the first derrick and the second derrick, four stand columns distributed in a rectangular shape are arranged in the base, the first derrick and the second derrick, and the cross beams are connected between every two adjacent stand columns through bolts. The stand column is formed by inwards folding a steel plate to form a first bending piece and a second bending piece, the end, away from the second bending piece, of the first bending piece is inwards folded to form a third bending piece, and the end, away from the first bending piece, of the third bending piece is inwards folded to form a first bending connecting piece. According to the utility model, the problems of single structure, insufficient performance and stress concentration of connecting nodes of an elevator derrick upright post additionally arranged in an old community are solved, and the overall strength, stability and safety of the derrick are improved.

The invention provides a detachable distributed photovoltaic structure. The photovoltaic structure comprises a base, the top of the base is provided with an adjusting frame, the top of the adjusting frame is provided with a supporting frame, the top of the supporting frame is fixedly provided with a mounting plate, the top of the mounting plate is in bolted connection with a photovoltaic panel body, and a connecting assembly is arranged between the supporting frame and the mounting plate; the connecting assembly comprises a plurality of connecting blocks distributed at the bottom of the mounting plate and a plurality of locking block mechanisms correspondingly arranged on the supporting frame, the locking block mechanisms are in transmission connection with the rollers through pull ropes, pull handles are arranged at the control ends of the pull ropes, the pull ropes are controlled at the same time through the pull handles, and the locking block mechanisms are pulled to achieve rapid unlocking. Rapid disassembly and assembly between the photovoltaic panel body and the supporting frame are achieved through the connecting assembly, the installation and maintenance cost and the damage risk are reduced, the angle of the photovoltaic panel is accurately adjusted through the adjusting frame to improve the power generation efficiency, and the problems that a traditional photovoltaic panel is complex in installation, difficult to maintain, low in power generation efficiency and the like are solved.

The utility model discloses a wallboard external corner connecting structure which comprises an external corner seat, a first connecting seat and a second connecting seat, and the first connecting seat and the second connecting seat are connected with a wallboard. The external corner seat is provided with a first bolt piece and a second bolt piece, the first bolt piece is connected with the first connecting seat, and the second bolt piece is connected with the second connecting seat; the first connecting base and the second connecting base are the same in structure, the first connecting base comprises a supporting profile, a splicing base and a bolt base, the splicing base is connected with one end of the supporting profile, a splicing groove is formed in the splicing base and used for being spliced with a wallboard, the bolt base is connected with the other end of the supporting profile, and a bolt groove is formed in the bolt base and used for being spliced with the wallboard. The bolt groove is used for being in bolt connection with the first bolt piece, and a ceramic tile edge closing arm is arranged on the outer wall of the bolt base. The wall frame has the advantages that the external corners of the spliced wall frame are firmer, splicing can be completed without using many tools, the splicing efficiency is improved, and meanwhile the structure is simple.

The utility model discloses a detachable supporting assembly for a giant circular ring. The detachable supporting assembly comprises a lining plate, a first supporting rod, a second supporting rod and an adapter plate. The plurality of lining plates are uniformly arranged in a circle along the inner wall of the ring and are fixed with the inner wall of the ring by spot welding, the adapter plate is located at the center of the ring, the length of the two first support rods is slightly smaller than the diameter of the ring, two ends are connected with the lining plates through bolts, and the middle is connected with the adapter plate through bolts; the second inner supporting rods are arranged in the radial direction, the outer ends of the second inner supporting rods are connected with the inner lining plate through bolts, and the inner ends of the second inner supporting rods are connected with the adapter plate through bolts. The inner supporting assembly is simple in structure and convenient to construct, on the premise that stable supporting is guaranteed, mounting and dismounting difficulty is lowered, mounting time is shortened, labor cost is saved, meanwhile, welding workload is reduced, worker fatigue and welding quality reduction caused by long-time welding are avoided, the inner supporting assembly can be positioned and corrected through bolts, and the production efficiency is improved. Compared with an all-welded structure, stress concentration can be effectively reduced.

The invention discloses a connector and a battery pack, and relates to the technical field of new energy. The connector comprises a main shell and a connecting piece, the main shell comprises a connecting part and an external connecting part which are fixedly connected, and a first mounting hole which penetrates through the connecting part and the external connecting part and is of a right-angle through hole structure, and the connecting part is used for being in sealed connection with an external through hole of a battery pack shell; the connecting piece and a copper bar in the battery pack are combined to form a conductive core, and the conductive core is arranged in the first mounting hole in a penetrating mode and forms a connector plug-in end located outside the battery pack with the external connection part. According to the connector, the copper bars in the battery pack and the connecting piece are combined to form the conductive core which is directly inserted into the connector main shell, and the conductive terminals in the connector and the copper bars in the battery pack are integrated into one material, so that a structure that the copper bars of the connector are connected with the copper bars in the battery pack through bolts in the prior art is eliminated; therefore, the contact resistance can be reduced, the connection strength is improved, and the packaging space is reduced.

The utility model discloses an extraction liquid concentration device, including the concentration jar, the concentration jar top is equipped with the sealing cover, and a plurality of groups first bolt connecting blocks are arranged to the sealing cover outside, the concentration jar outside top fixed mounting has the fixed ring, and a plurality of groups with first bolt connecting block cooperation uses second bolt connecting block is arranged to the fixed ring outside, first bolt connecting block is connected with second bolt connecting block through bolt, the sealing cover outside top is equipped with drive mechanism, and drive mechanism can drive the rotation of stirring rod mechanism, the inside installation of stirring rod mechanism has the spray pipe mechanism, and the spray pipe mechanism is connected with the outside water delivery pipeline through the rotary connecting mechanism, the utility model discloses a bolt to the sealing cover is connected with the convenient dismantling and installation of sealing cover to late period, thereby the inside of concentration jar is cleaned and maintained to the convenience regularly, through setting up the spray pipe mechanism.

The utility model discloses a refractory brick turnover device which comprises a bottom plate and a face plate, a clamping assembly is arranged above the face plate, the clamping assembly comprises a clamping plate, the inner wall of the clamping plate is connected with a friction pad through a bolt, one end of the clamping plate is connected with a rotating disc through a bolt, a first hole groove is formed in the circumferential outer wall of the clamping plate, and a second hole groove is formed in the circumferential outer wall of the clamping plate. A first hole groove is formed in the bottom plate, a first fixed rod is arranged on the inner wall of the first hole groove, a first movable rod is arranged in the first fixed rod, a first spring is arranged on the circumferential outer wall of the first movable rod, an observation assembly is arranged above the bottom plate and comprises an observation instrument, and a moving block is connected to the bottom of the observation instrument through a bolt. According to the refractory brick turnover device, through the clamping assembly, adjustment of the clamping distance of refractory bricks can be well achieved, and then through the observation assembly, a worker can conveniently observe the state of a brick body through an observation instrument.

The utility model discloses a PP (Polypropylene) plate raw material stirring and mixing device which comprises a stirring head which comprises a shaft sleeve and a rotating seat, and the rotating seat is provided with a mounting hole connected with a motor; the first stirring assembly comprises a tensioning support, a first connecting rod, a first stirring blade, a second connecting rod and a second stirring blade, the tensioning support is connected to one side of the rotating seat, and the first connecting rod and the second connecting rod are connected to the tensioning support through bolts; the second stirring assembly comprises an extension arm and a scraper, one end of the extension arm is connected to one side of the rotating seat, and the other end of the extension arm is connected with the scraper; the rotary stirring assembly comprises a connecting support, a bearing seat and a plurality of bent rods, the bearing seat is installed on one side of the rotating seat through the connecting support, a rotating shaft is arranged in the bearing seat, and the bottom of the rotating shaft is connected with the bent rods. The stirring and mixing device can be placed in a stirring barrel with columns for use, the stirring and mixing device can be directly moved away when not needed, raw materials in the stirring barrel do not need to be transferred for the second time, and use is convenient.

The utility model relates to photovoltaic module technical field discloses a photovoltaic module backboard ventilation heat dissipation grid, including backplate, the top fixedly connected with toughened glass of backplate, the bottom fixedly connected with the grid plate of backplate, the front of grid plate is provided with mounting mechanism, the mounting mechanism includes the movable plate of sliding connection in the left side inner wall of grid plate, the left end fixedly connected with the plug -in board of movable plate, the front fixedly connected with fixed column of movable plate, the front of fixed column is provided with protection assembly, the right side of grid plate is provided with T groove, in the utility model, the cooperation of T plate and T groove through mounting mechanism has realized the quick predetermination of multiple grid plates, effectively solved the problem that predetermination is difficult when traditional bolt penetrates and fixes, greatly simplified the splicing flow, and cooperation bolt connection avoided the defect that buckle connection clamping force is insufficient and easy to loosen, thereby improved overall installation efficiency.

The utility model relates to the field of transformer core, and disclose a kind of transformer core connecting support, including two upper clamping seat, two the upper clamping seat for installing in the top of core body, two the upper clamping seat are connected by bolt between, the bottom of upper clamping seat is equipped with connecting assembly, the bottom end of connecting assembly is equipped with support assembly, support assembly includes two bases, the top of two the base is fixedly installed with two slide rods, the outside of two the slide rods is movably installed with sliding block, the top of two the sliding block is fixedly installed with lower clamping seat, the top between two the base is fixedly installed with same lower clamping seat. By sliding block and screw rod, it is convenient to adjust the spacing between two lower clamping seat, applicable to support and fix the core body of different thickness;By adjusting rod and guide rod, it is convenient to adjust the spacing between two lower clamping seat, applicable to support and fix the core body of different thickness.

The utility model discloses a sealed connector fills glue when holding positioning device, including tray: the left and right sides of tray inner chamber all are fixed with U -shaped groove through bolt connection, and the inner chamber of two U -shaped groove all is welded with U -shaped board, and the inner chamber of two U -shaped groove all slidingly connected with hollow rectangular block, the inner chamber of hollow rectangular block is provided with limit structure, and the limit structure includes the round pipe of welding in hollow rectangular block inner chamber, and the inner chamber slidingly connected with the circular ring of round pipe, the utility model discloses through sliding rectangular bar drive hollow rectangular block in the inner chamber of U -shaped groove and slide, and hollow rectangular block in the process of sliding, the effect of limit structure makes semicircular board to the main body of sealed connector and supports in opposition, can reach the fixed force of making connector to be limited to avoid the displacement of connector, and the purpose that the filling glue pipe occurs liquid seepage when filling glue.

The utility model discloses a kind of car sunroof guide rails with buffering noise reduction structure, it is related to sunroof guide rail field, this kind of car sunroof guide rail with buffering noise reduction structure includes the guide rail main body extending along first direction, outwardly extending mounting plate is formed on the guide rail main body one side outer wall, multiple mounting holes are opened on mounting plate, for bolt connection frame, bolt is passed in mounting hole when connecting;This kind of car sunroof guide rail with buffering noise reduction structure forms three-dimensional grid structure by buffer groove and extension groove, main rubber pad absorbs vertical impact, extension rubber pad inhibits longitudinal vibration, double elastic deformation greatly reduces the area of mounting plate contact part after installation with frame, blocks vibration transmission path, rubber ring in the protruding part groove isolates bolt and mounting plate metal contact, eliminates high-frequency friction abnormal sound.