515 results about "Shock resistance" patented technology

The invention provides a light and heat-dissipating aerospace small-sized calibration lamp mounting seat, which relates to the technical field of aerospace optical small-sized calibration lamp structure fixation, and comprises a substrate mounting seat module, a conductive module, an insulating module and a heat conduction module. The conductive module comprises two chamfered semi-cylindrical conductive copper blocks and two wires with soldering lugs; the insulating module comprises an insulating polyimide isolating layer; the heat conduction module comprises a heat conduction insulation pad which is installed above two copper blocks, the positive electrode and the negative electrode of the two copper blocks are separated through an insulation polytetrafluoroethylene isolation layer, and the semi-cylindrical conductive copper blocks, the polytetrafluoroethylene isolation layer and the substrate installation base are positioned through pin holes. The soldering lug wire is installed on the left semi-cylindrical conductive copper block and the right semi-cylindrical conductive copper block in a pressing mode through top screws. The structure distribution is friendly, the anti-seismic performance is good, a good heat dissipation way is provided for the calibration lamp, and an effective and feasible implementation scheme is provided for fixing the small aerospace calibration lamp.

The invention provides a time domain and frequency domain combined impact resistance analysis method and device for a ship stern tube, and the method comprises the steps: building geometric models of all parts in the stern tube through three-dimensional modeling software according to an actual engineering drawing of the stern tube, carrying out virtual assembly on the geometric model of each component according to the actual assembly relation of each component to obtain a geometric model of the tail shaft tube; importing the geometric model of the tail shaft tube into finite element software, endowing each component with material attributes, and carrying out grid division on the geometric model by adopting an overall network size control method; and performing static analysis on the geometric model after grid division to obtain static working stress, performing dynamic analysis on the geometric model after grid division to obtain dynamic impact stress, and synthesizing the static working stress and the dynamic impact stress into total stress. According to the method, time domain and frequency domain combined shock resistance response calculation is carried out for the tail shaft tube as a core component of the ship propulsion system, and the accuracy of shock resistance response calculation is improved.

The invention discloses an anti-impact compliance control method, device and system for a robot tail end and a storage medium. The force information of the robot tail end is estimated based on the position, speed and joint motor torque information of a robot; and the abrupt change torque of the end effector is compensated through the trained network system, and the anti-impact performance and the contact flexibility performance of the robot end effector are improved.

The application relates to the field of heat exchangers, and discloses an energy-saving marine plate heat exchanger which comprises a shock resistance assembly, an adjusting assembly, a toughness assembly, a heat exchange assembly, heat exchange plates and a dehumidification assembly. When the ship shakes, the track can slightly shift along with the rubber pad through the installation of the adjusting assembly and the toughness assembly; when the electric motor inside the runner starts, the twisted rope is wound or released under the rotating action of the runner, the elastic rod is deformed, the bending curvature of the elastic rod is changed, the compression amount of the spring is changed, the overall rigidity of the toughness assembly is adjusted, when the moving block moves along the track, the punching block is synchronously displaced through the rigid connection, the X-shaped intersection angle of the two elastic rods is changed, the pre-tightening force of the spring is adjusted, a soft-hard adjustable shock resistance support structure is realized, and the problems of damage and reduced heat exchange efficiency of the heat exchanger caused by shaking are solved.

The utility model relates to a composite photovoltaic inhaul cable, which comprises a composite anti-corrosion cable body, two ends of the composite anti-corrosion cable body are respectively wrapped in a variable cross-section extrusion sleeve of an inner cavity structure, one end of the variable cross-section extrusion sleeve is open, and the opening is sealed by an arc-shaped gland. The variable cross-section extrusion sleeve is divided into a guide arc-shaped conical surface, a first extrusion surface, an excessive pressure relief section, a second extrusion surface and a non-extrusion surface which are sequentially arranged backwards from an opening, the composite anti-corrosion cable body comprises a zinc-aluminum alloy steel strand or an epoxy coating steel strand, and the surface of the steel strand is wrapped with an extrusion bond-wrapping type polyurea layer. Due to the design of a brand-new anchoring mode and the improvement of anti-corrosion measures, the corrosion resistance of the inhaul cable is achieved, and the inhaul cable has the advantages of being high in stress fatigue resistance, good in shock resistance, reliable in anchoring performance, compact in anchorage device structure, convenient to manufacture, install and replace and the like.

The application provides a two-component polyurethane sealant suitable for automobile headlight structure bonding and a preparation method thereof, and relates to the technical field of polyurethane sealants. The two-component polyurethane sealant comprises component A and component B, and the mixing mass ratio of the component A and the component B is 1:1 to 1:5. The component A comprises the following raw materials: isocyanate group terminated organic silicon modified polyurethane prepolymer 80-120 parts, powder filler 15-40 parts, and auxiliary agent 0.5-2 parts. The component B comprises the following raw materials: polyol 100-160 parts, powder filler 50-200 parts, catalyst 0.01-0.1 parts, and auxiliary agent 0.1-20 parts. The polyurethane sealant prepared by using single-end double-hydroxyl alkyl polydimethylsiloxane composite polyol for the first time has better water resistance, better bonding force on low surface energy material (PP), better cold and hot impact resistance, better ultraviolet aging resistance, better elongation at break, and better shock resistance.

The utility model relates to a sampling device for highway engineering test detection, and belongs to the technical field of highway engineering. The sampling device for highway engineering test detection comprises a bottom plate and a sampling piece arranged above the bottom plate, the anti-seismic assembly is arranged on the surface of the sampling barrel of the sampling piece; wherein the anti-seismic assembly comprises an anti-seismic cover arranged on the surface of a sampling barrel in the sampling piece, and a fulcrum is arranged below the anti-seismic cover; by arranging the anti-seismic assembly on the surface of the sleeve, when the sampling barrel descends and samples, the anti-seismic cover and a plurality of fulcrums are utilized, so that the sampling barrel can be supported and kept stable, and meanwhile, vibration force generated when the sampling barrel and a road surface rotate at a high speed can be counteracted in a multi-point manner; the problem that the tightness of a sample in the sampling barrel is influenced by resonance between the sampling barrel and other structures due to vibration generated by the sampling barrel during sampling can be effectively prevented.

The utility model relates to the technical field of prefabricated stairs, in particular to a prefabricated stair anti-seismic buffering structure which comprises an anti-seismic buffering assembly, a prefabricated stair body is arranged on the outer side of the anti-seismic buffering assembly, a protective fence is fixedly connected to the upper end face of the prefabricated stair body, and the anti-seismic buffering assembly comprises a supporting box. Supporting seats are fixedly connected to the two sides of the inner wall of the supporting box, a positioning rod is fixedly connected between the two supporting seats, an adjusting seat is slidably arranged on the surface of the positioning rod, reset springs are fixedly connected between the adjusting seat and the supporting seats, a first connecting seat is fixedly connected to the bottom end of the adjusting seat, and a second connecting seat is fixedly connected to the outer side of the supporting seat; according to the prefabricated staircase, the horizontal thrust of the prefabricated staircase body can be weakened or counteracted, the service life of the prefabricated staircase body is prolonged, and the safety and reliability of a building are ensured.

The utility model relates to the technical field of loudspeakers, and particularly discloses an invisible sound reinforcement plate which comprises a middle core layer which is a composite base material formed by interweaving carbon fibers and aramid fibers. The supporting layer is arranged at the upper end of the middle core layer, and the supporting layer is composed of a plurality of frameworks with the sections of regular hexagon structures and is of a honeycomb structure as a whole; the sound reinforcement plate has the advantages of high strength, good tensile effect, support of ultrahigh-frequency sound wave conduction, light weight and reduction of the overall weight of the sound reinforcement plate; the supporting layer is composed of a plurality of frameworks with the sections of regular hexagon structures, the whole supporting layer is of a honeycomb structure, rigidity is good, bending resistance is high, deformation is not prone to being caused in the assembling and using process, and therefore the using performance of the sound reinforcement plate is improved. The supporting ribs form a continuous force transmission path and disperse local stress, the trapezoid cross section reduces the stress concentration coefficient, and the buffering wrapping edge is made of silica gel materials, prevents external dust from invading the sound reinforcement plate interlayer and meanwhile plays a role in buffering and shock resistance.

The invention discloses a pipe bracket convenient to install, stable and firm for a pipeline, and particularly relates to the technical field of pipe brackets. The pipe bracket comprises a lower pipe clamp, an upper pipe clamp, an iron clamp and a connecting mechanism; the lower pipe clamp and the upper pipe clamp are symmetrically arranged, the iron clamps are arranged on the outer sides of the lower pipe clamp and the upper pipe clamp, protruding strips are arranged on the outer side faces of the iron clamps, threaded holes are formed in the side portions of the iron clamps, and bolts penetrate through the threaded holes and are fastened through fixing nuts. Through a double-locking connecting mechanism, a traditional single fastening mode is abandoned, vibration and loosening are prevented through double fixing of mechanical clamping and elastic pre-tightening, an automatic clamping and convenient unlocking structure is matched, and double positioning of a carbon steel positioning rod and magnetic attraction is adopted, so that the problem of high-altitude and narrow space installation and positioning is solved, the assembly precision and efficiency are improved, and the labor intensity of workers is reduced. The three-layer composite pipe clamp and the iron clamp protruding strips achieve the synergistic effect, the limitation of buffering and stabilizing unbalance is broken through, shock resistance, adaptation to thermal expansion and cold contraction and continuous stabilizing integration are achieved, and the service life under the complex working condition is greatly prolonged.

The invention provides a logging data file storage method, device and equipment and a medium, and the method comprises the steps: storing a file mark, basic information, instrument setting, work, scale information and logging data in a file; the basic information stores storage starting positions, well numbers, instrument working states and working section starting and ending time of instrument setting information, working information, scale data and logging data; an instrument working state, perforation parameters, fracturing parameters and working section information corresponding to one well number are stored in the instrument setting information; working section information corresponding to one well number is stored in the instrument working information; scale data corresponding to one well number and a storage starting position of the scale data are stored in the instrument scale data; a sampling type corresponding to a well number, a pressure value of the sampling type, a three-axis acceleration value, a temperature value, a battery voltage value and section mark characteristics corresponding to working section information are stored in the logging data. Therefore, data accuracy is ensured, and logging requirements in environments such as high temperature, high pressure and high shock resistance are met.

The utility model discloses an electromagnet which comprises a support body and a cover plate fixedly arranged on one side of the support body. An execution assembly is arranged in the support body, the bottom and the top of the support body are both provided with anti-seismic colloid, the bottom is further provided with a PIN terminal, the PIN terminal is electrically connected with the execution assembly, and the connecting position of the PIN terminal and the execution assembly is wrapped by an insulation connecting bridge. The execution assembly comprises a winding supporting piece, a limiting shaft sleeve, an iron core, a permanent magnet and a coil. The two ends of the limiting shaft sleeve are provided with limiting holes, and sliding limiting of the iron core is achieved through a guide block and a positioning base. The anti-seismic performance, the integration level and the installation convenience of the electromagnet can be improved, meanwhile, the leakproofness and the insulativity of the welding part are ensured, and the electromagnet is suitable for an automobile ABS system.

The utility model discloses a kind of good anti-shock effect of heating and ventilation engineering fan mounting mechanism, belong to heating and ventilation engineering fan installation technical field.The utility model has the advantages of significantly improving anti-shock performance, prolonging equipment service life, rubber buffer column can actively absorb and buffer energy when heating and ventilation engineering fan body is impacted or vibrated externally, reduce vibration transmission to heating and ventilation engineering fan body, improve the anti-shock ability of overall system, four groups of buffer components are evenly distributed, ensure that heating and ventilation engineering fan body is balanced in each direction Stress, further reduce the instability caused by other external vibration, effectively reduce the vibration frequency and amplitude of heating and ventilation engineering fan body inside and connecting component, reduce mechanical wear and fatigue, thereby prolong the service life of heating and ventilation engineering fan body, buffering and damping effect reduces the loosening and damage of component caused by vibration in running process, improve the reliability of equipment.

The utility model relates to the technical field of shock resistance, and discloses a prestress viscous damper which comprises a cylinder body, a first piston is connected inside the cylinder body in a sliding mode, a guide rod is fixedly connected inside the first piston, a second piston is fixedly connected outside the guide rod, and a fixing ring is fixedly connected outside the guide rod. The left sides of the fixing rings are fixedly connected with supporting rods, the supporting rods are sleeved with telescopic springs, the left sides of the multiple supporting rods are fixedly connected with moving rings, the multiple supporting rods are slidably connected with supporting rings, the outer portion of the cylinder body is fixedly connected with a cooling assembly, and the cooling assembly comprises a hollow ring. An inner cavity is formed in the hollow ring, and a heat conduction plate is fixedly connected to the outer portion of the hollow ring. According to the viscous damper, the prestress of the viscous damper is improved, then the displacement response of the structure is effectively restrained, and the risks of cracking of a building wall and damage to beam-column joints are greatly reduced.

To provide a tank capable of coping with enlargement of the tank and having excellent vibration resistance.SOLUTION: The tank includes a body, a header having a refrigerant inflow hole and a refrigerant outflow hole and provided at one end of the body, an inflow pipe connected to the refrigerant inflow hole, and a support member attached to the inflow pipe, wherein the support member is in contact with the body, the support member is attached to an end portion of the inflow pipe on a side opposite to the header, and the support member has a communication path through which an inside of the inflow pipe and an outside of the support member communicate with each other, and a flow direction of a refrigerant entering the communication path and a flow direction of a refrigerant discharged from the communication path are made different from each other.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of constructional engineering, and discloses a prestress connection integrated double-column pier plastic hinge structure which comprises a cover beam, double-column piers and a bearing platform, the cover beam and the bearing platform are arranged up and down, and the double-column piers are arranged on the two sides of the cover beam and the two sides of the bearing platform; the bent cap, the double-column pier and the bearing platform are connected in series through steel strands, a plastic hinge area is arranged at the position of the double-column pier, and dense stirrups are installed in the plastic hinge area. According to the prestress connection integrated double-column pier plastic hinge structure, the cover beam, the double-column pier and the bearing platform are connected through various measures, the shock resistance among the cover beam, the double-column pier and the bearing platform after assembly is enhanced, and therefore the stability of a follow-up bridge during use is guaranteed, the overall construction speed is increased through the mode, and the construction period is shortened. And the pollution to the surrounding environment is further reduced.

The utility model provides an anti-impact sealing protection automobile water pump shell, and belongs to the technical field of machinery. The problems that according to a traditional sealing structure, a sealing ring falls off or is abraded easily due to long-term vibration, cooling liquid leaks, a shell material deforms easily under the impact of high-pressure cooling liquid, and the service life of a water pump is affected are solved. The shock-resistant sealing protection automobile water pump shell comprises a main body, the main body is provided with a protruding fixing boss used for fixing a water pump assembly, the fixing boss is provided with a groove used for containing a motor shaft, and a sealing circular truncated cone used for achieving the sealing effect is arranged between the main body and the fixing boss. The utility model has the advantages of shock resistance and improved sealing performance.

The utility model relates to the field of expansion rubber blocks, and particularly discloses a high-foaming expansion rubber block for an automobile, which comprises a framework layer and a foaming layer, a boss is arranged on the end face of the side, facing the foaming layer, of the framework layer. A barb structure is arranged on the side face of the boss. The foaming layer is provided with grooves corresponding to the bosses, and the barb structures are embedded into the foaming layer. Convex-concave mortise and tenon joint splicing structures are arranged at the two ends of the framework layer, and a positioning pin and a magnetic attraction structure are integrated on the side, facing the automobile body metal plate, of the framework layer so that the framework layer can be fixed to the automobile body metal plate. And through the composite structural design of the framework layer and the foaming layer, mortise and tenon joint splicing and magnetic attraction fixing are combined, and the installation stability and the anti-seismic property of the rubber block can be effectively improved.

The utility model discloses an electric dust remover hanging collapse prevention device which comprises an electric dust remover shell, two supporting porcelain columns, a collapse prevention hanging frame and a cathode hanging component, and the cathode hanging component comprises cathode hanging supporting channel steel welded to the electric dust remover shell and a chassis assembly supported by the cathode hanging supporting channel steel. The protective sleeve is welded below the base plate assembly, the insulating sleeve is fixedly installed above the base plate assembly, and the axis of the insulating sleeve is consistent with that of the protective sleeve; the tubular heater is installed around the insulating sleeve; the upper plate assembly is fixed above the insulating sleeve; the hanging steel pipe penetrates through the upper plate assembly and then sequentially penetrates through the insulating sleeve, the base plate assembly and the protective sleeve; the gland is arranged at the upper end of the hanging steel pipe in a sleeving mode and embedded into the upper disc assembly, and the pressing nut is arranged at the upper end of the hanging steel pipe in a screwed mode and tightly presses the gland. The device solves the problems of easy collapse, sealing failure and poor shock resistance of a traditional electric dust remover hanging system, and realizes comprehensive improvement of safety, stability and service life.

The utility model relates to the technical field of shock resistance flexible connecting structure, especially a photovoltaic panel multi -item connection's shock resistance flexible connecting structure, including concave board and cross board, two the inside of concave board respectively with the left and right sides of cross board fixedly connected, the top of concave board is connected with fixed structure, the inner wall of concave board is connected with support structure, the outer wall of cross board multiple round mouth respectively fixedly connected with a plurality of cylinder, the outer wall top plate outer wall and the outer wall of round bar slide link, further in the rotation of screw rod will take top plate and slide down the outer wall of round bar, make the second protective pad of top plate bottom and the top of photovoltaic panel abut, make the nut on the handle subsequently, make the nut installation handle's curved track move down, the nut rotates down through the outer wall of screw rod subsequently, make the bottom of nut and the top of top plate abut, further reinforce top plate, guarantee the shock resistance flexible connecting structure installation stability, avoid the abrasion of photovoltaic panel surface.

The shockproof and anti-cracking track steel frame for the curtain box comprises a framework, the framework comprises a first keel and a second keel, the first keel is provided with a transverse hole which is transversely formed, and the second keel is provided with a longitudinal hole which is longitudinally formed; the wall body bolt is used for being fixed on a wall body; the wall body damping gasket is used for being arranged on the wall body bolt in a sleeving mode; a first round hole is formed in the L-shaped angle sheet; the L-shaped corner piece is arranged on the first keel, and the wall damping gasket penetrates through the first round hole and then is inserted into the transverse hole. According to the shockproof and anti-cracking rail steel frame for the curtain box, the wall body damping washers are arranged on the wall body bolts in the sleeving mode, so that when the first keel generates stress, the first keel moves relative to the wall body damping washers, the stress is released, meanwhile, the shock resistance can be improved, and the situation that the curtain box cracks is avoided.

The utility model discloses data security storage device with protection function, specifically related to data storage technical field, including the chassis, the inside fixed connection of chassis has a plurality of heat dissipation fins, the top fixed connection of heat dissipation fin has the heat conduction board, and the inside fixed connection of heat conduction board outside and chassis, the inside setting hard disk of chassis, the outside fixed connection of hard disk has a plurality of clamping blocks, and the inside joint of clamping block outside and chassis, and the outside setting buffer mechanism of chassis, buffer mechanism includes two fixed links. The utility model utilizes a plurality of elastic support's support rod and connecting sleeve to weaken the impact force when hard disk drops, and the deflection of rubber cover simultaneously converts the pressure into transverse moving force, reduces repeated vibration influence, improves the shock resistance and service life, combines the protection mechanism, adopts the protection of hard disk corner to many protection tubes, and effectively prevents the puncture through the up and down rubber board and ceramic composite board, and the defense ability of sharp object and concentrated load impact is strengthened.

The utility model relates to the technical field of industrial upstairs, and discloses a connecting node structure of prestressed beams and beam columns, which comprises a plurality of beam columns and prestressed beams, and adapts to the deformation requirement of the whole structure through the hinged connection of primary and secondary beams of the prestressed beams, improves the shock resistance and durability of the structure, and reduces the construction cost. The annular plates and the partition plates above the through holes of the beam columns, the supporting plates below the through holes, the reinforcing ribs below the supporting plates and the grooves in the bottoms of the prestressed beams are fixed in a surfacing mode, the reinforcing plates in the beam columns cooperate with one another to enhance the firmness of joint connection, the joints are prevented from loosening or deforming, and the joint structure can bear large loads; and the requirement of industrial upstairs on structural strength is met.

The application provides a high-strength gray cast iron diesel engine body without riser casting forming method, and belongs to the casting technical field.The method is designed from the parting surface, pouring system, riser, cold iron, scale reduction and smelting process parameters; and comprises the following steps: selection of the parting surface: the diesel engine body adopts a horizontal casting type, the cylinder hole surface is located on the side surface, and the two-opening box casting mode is arranged on the crank hole; pouring system design: an open bottom pouring system with a filter is adopted; riser design: no riser is designed at the highest point of the pouring position of the diesel engine body, only air outlet fins are arranged on the two sides, and an air outlet rod is arranged at the middle large plane position; cold iron design: no cold iron is used at the position with uneven wall thickness of the diesel engine body; scale reduction design: the scale reduction is determined as 1.1%; and smelting process and parameters.The application has relatively high strength and hardness, can improve the shock resistance, wear resistance and heat dissipation performance, and can also reduce the production cost.

The utility model discloses an integrally formed cylinder inductor structure based on Tcore. The integrally formed cylinder inductor structure based on Tcore comprises a Tcore magnet, a coil, an outer magnet and an extraction electrode, the coil is wound on the Tcore magnet, the positive pole and the negative pole of the coil are respectively connected with the extraction electrodes, the Tcore magnet, the coil and the extraction electrodes form a magnetic core, the outer magnet is integrally formed and wraps the outer side of the magnetic core, and the outer magnet is of a cylindrical structure. Compared with an existing square outer magnet, the cylindrical outer magnet structure is adopted, the space utilization rate of the inner magnetic core is improved, miniaturization of the inductor is achieved, the shock resistance and the mechanical strength of the inductor structure are improved through the cylindrical outer magnet structure, the manufacturing process is simplified, and the manufacturing cost is reduced. And the size of the outer magnet required by the Tcore with the same size is smaller, so that raw materials required in molding are reduced, and the manufacturing cost is reduced.

The utility model discloses a punching device with shock resistance and damage prevention for silica gel processing, which belongs to the field of silica gel processing and comprises a base, four groups of upright posts are fixedly mounted at the upper end of the base, a top plate is fixedly mounted at the upper ends of the four groups of upright posts, a hydraulic cylinder is fixedly mounted on the top plate, and a mounting plate is slidably mounted on the four groups of upright posts. The mounting plate is fixedly connected with the telescopic end of a hydraulic cylinder, a punching cutter is fixedly mounted on the lower side of the mounting plate, a workbench is fixedly mounted on the upper side of the base, conveyors are fixedly mounted at the left end and the right end of the base, and the workbench is located between the two conveyors. Through cooperative use of the devices, the limiting assembly descends to be attached to the anti-impact assembly, then impact force generated in the punching process is effectively absorbed, silica gel is prevented from being damaged in the punching process, meanwhile, it is guaranteed that the silica gel can be stably punched through the punching device through the limiting assembly, the silica gel is prevented from being wrinkled, and the service life of the silica gel is prolonged. And the production quality of silica gel is improved.

The utility model discloses an anti-vibration capacitance tester, which comprises a capacitance tester body, test interfaces and an anti-vibration protective shell, the anti-vibration protective shell is sleeved on the surface of the capacitance tester body, the test interfaces are arranged on two sides of the front surface of the capacitance tester body, and first anti-vibration sheets are arranged on two sides of the top and the bottom of the inner wall of the anti-vibration protective shell. According to the utility model, the first anti-seismic sheet is arranged, the first anti-seismic sheet and the anti-seismic air bag are used for further buffering and seismic resistance, so that the anti-seismic strength is further improved, the first anti-seismic sheet is used for seismic resistance in the up-down direction, and the anti-seismic air bag acts on seismic resistance in the left-right direction; the problems that the use effect of the tester is reduced and the test result is influenced when the tester is subjected to external vibration or impact due to low overall vibration resistance caused by the fact that only one single anti-vibration insulation case is arranged on the surface of the tester in a sleeving manner for vibration resistance are solved, and the effect of assisting vibration is achieved.

This utility model discloses an expansion screw locking device, applied in the field of locking device technology. It includes an expansion screw tube, inside which is an expansion screw core. A locking sleeve is threaded onto the surface of the expansion screw core. A fixing sleeve is slidably fitted onto the surface of the locking sleeve. A top block is installed at the top of the locking sleeve. Fixing blocks are symmetrically welded onto the surface of the fixing sleeve. A holding sleeve is slidably fitted onto the surface of the fixing blocks. A buffer spring is bolted between the other end of the fixing block and the holding sleeve via a spring fixing plate. A damper is installed between the other end of the fixing block and the holding sleeve. This device can efficiently lock the expansion screw, is easy and efficient to install, ensures the plug expands to its limit, and provides good shock resistance by converting some kinetic energy into elastic potential energy and releasing it slowly, reducing the force directly transmitted to the hand. It is highly practical.

The invention discloses a supporting insulator-free extra-high voltage bus flexible butt joint device and method, and relates to the technical field of high voltage cable connection, and the device comprises an insulator and two buses, and also comprises a connection assembly. The connecting assembly comprises a butt joint block which is fixedly connected with the insulator. The butt joint block is fixedly provided with a fixing frame and two arch-shaped metal bars. The same ends of the two arch-shaped metal bars are jointly provided with a locking mechanism, and the two ends of the fixing frame are each fixedly provided with two limiting mechanisms. The device has the advantages that firstly, the arched metal bar is matched with the buffer spring to form double elastic buffer, so that the energy absorption adaptability is high, and the buffer compensation is more stable; locking and bilateral limiting mechanisms are cooperated, flexible compensation and accurate limiting are achieved, and it is guaranteed that the bus track is controllable; 3, the traditional insulator mechanical coupling design is abandoned, so that the shock resistance and impact resistance are greatly improved; and 4, a spring plate deformation linkage locking structure can automatically improve the locking strength of the bus, and the operation is more stable.

The invention provides a low-temperature manufacturing method of a jet element. The method comprises the steps that S1, a cover plate, a bottom plate and a base plate of the jet element are machined, the surfaces are pretreated, and soldering lugs are polished; s2, cleaning the to-be-connected surfaces of the cover plate, the bottom plate and the substrate and the soldering lugs; s3, coating a soldering flux on a welding part; s4, heating, heat preservation and cooling; s5, glue is injected into the bonding part; s6, pressurizing and standing; and S7, heating, heat preservation and cooling are conducted, specifically, the bonded whole is put into a muffle furnace to be slowly heated and subjected to heat preservation, and the whole is taken out after being naturally cooled to the room temperature in the furnace. Thermal damage can be avoided, the welding stress can be reduced, meanwhile, the cost is reduced, and the service life of the manufactured jet element is greatly prolonged due to the fact that the base material is free of damage, the internal residual stress is small and the shock resistance of the connector is good.