251results about How to "Avoid local stress concentrations" patented technology

The invention provides a vibration damping device of an auxiliary bridge parallel to a main bridge, which comprises a torsion type damping unit arranged between a main beam of the auxiliary bridge and a main beam of the main bridge adjacent to the auxiliary bridge, and the torsion type damping unit comprises a torsion type damper, a transmission assembly and a fixing assembly, the torsion type damper is installed on the side wall of the main beam of the main bridge through the fixing assembly, the transmission assembly comprises a dowel bar for transmitting vibration in the vertical bridge direction and the side bridge direction of the auxiliary bridge and a conversion swing rod for converting linear motion of the dowel bar into rotary motion, and the torsion type damper comprises a torsion shaft. The torsion type damper is connected with the side wall of the auxiliary bridge main beam through the torsion shaft, the conversion swing rod and the dowel bar which are hinged in sequence. The method has the advantages of improving the vibration reduction effect of the auxiliary bridge, reducing the using amount of the damper and the like.

The invention provides an air outlet grille, an outdoor unit and an air conditioner, the air outlet grille comprises a central disc located in the center, an outer frame located on the outermost edge and a rib set located between the central disc and the outer frame, the rib set comprises circumferential ribs and radial ribs, and the radial ribs are distributed in a radiation mode with the central disc as the center; the curve along which the air guide surfaces of the radial ribs are arranged according to a position angle, an inlet angle and an outlet angle, the angle range of the position angle is 50-52 degrees, the angle range of the inlet angle is 5-10 degrees, and the angle range of the outlet angle is 10-20 degrees. The outdoor unit comprises an air outlet grille, and the air conditioner comprises the outdoor unit and an indoor unit. The radial ribs still meet the trend that the bending degree is increased along with the increase of the radius in the radial direction; and furthermore, the curve of the radial rib is ensured to have an angle which is adaptive to the rotation direction of the axial flow fan blade and the air outlet angle of the axial flow fan blade with a larger forward bend, so that the air outlet blocking is reduced, the air direction is adjusted, the local turbulence is reduced, and the heat dissipation efficiency is improved.

The invention discloses a manufacturing method of a second type low-smoke halogen-free standard wall cable of a motor train unit, which relates to the technical field of cables and comprises the steps of conductor preparation, insulation extrusion, buffer isolation layer forming, shielding layer manufacturing, reinforced core preparation and installation, sheath extrusion and post-processing. The conductor is prepared by layering and twisting cerium-titanium alloying copper monofilaments and treating the cerium-titanium alloying copper monofilaments through a nano ceramic coating; post-processing detection shows that the cable is small in bending radius, low in electrical and mechanical performance attenuation rate after repeated bending, excellent in electrical performance, mechanical performance, fireproof performance, environmental protection performance and the like, capable of effectively meeting the cable use requirements under complex working conditions of the motor train unit, capable of guaranteeing the operation reliability and safety, capable of improving the comprehensive performance of the cable and wide in application range. The cable is suitable for power and signal transmission in rail transit fields such as motor train units.

The invention belongs to the field of basalt fiber photovoltaic supports, and discloses an energy-consuming basalt fiber photovoltaic support without trepanning connection, which is characterized in that a plurality of groups of energy-consuming connecting pieces are arranged on a stand column, and each energy-consuming connecting piece comprises a buckle, an energy-consuming assembly and a pre-embedded connecting steel plate; the buckle is used for fixing the basalt fiber supporting structure and providing stable inclined supporting force and vertical supporting force for the basalt fiber purline; the energy dissipation assembly consumes external load energy through friction, and the anti-seismic and wind-resistant performance of the support is enhanced; the whole support is connected without opening holes, stress is effectively dispersed, local stress concentration is avoided, and the material performance is kept; the energy dissipation assembly enables the support to be in rigid connection under the load and then to be in flexible connection, energy is consumed, load transmission is limited, and rod pieces are prevented from falling off and cracking. By adopting the bracket, the problems of mechanical property reduction and stability caused by trepanning are solved, the durability and the safety of the bracket are remarkably improved, and the bracket is widely applicable to different geographical and climatic conditions.

The invention relates to the technical field of cranes, and discloses a telescopic boom and a crane with the telescopic boom. The supporting plate is arranged on the outer circumferential surface of the basic arm and extends in the circumferential direction of the basic arm; the two variable-amplitude box sets are symmetrically arranged on the two sides of the basic arm, each variable-amplitude box set comprises a first variable-amplitude box and a second variable-amplitude box, the first variable-amplitude boxes and the second variable-amplitude boxes are arranged on the peripheral face of the basic arm, the first variable-amplitude boxes extend in the axial direction of the basic arm, and the second variable-amplitude boxes are obliquely arranged relative to the axial direction of the basic arm; one end of the first variable-amplitude box abuts against the supporting plate, the other end of the first variable-amplitude box is used for being connected with the variable-amplitude cylinder, one end of the second variable-amplitude box abuts against the supporting plate, and the other end of the second variable-amplitude box abuts against the side face of the first variable-amplitude box. According to the embodiment of the invention, the stress distribution on the telescopic arm is uniform, and local stress concentration is effectively avoided.

This utility model discloses a fast battery swapping frame for new energy microvans, comprising: a frame body, wherein the frame body is formed by two sets of longitudinal beams and two sets of transverse beams connected together; the longitudinal beams adopt a C-shaped structure; the ends of the transverse beams are located in the C-shaped grooves of the longitudinal beams; a notch is provided at the top of the transverse beams near one end; and support plates are provided inside the transverse beams on both sides of the notch; this utility model forms a stable overlapping structure by welding the ends of the transverse beams to the C-shaped grooves of the longitudinal beams, which increases the contact area of ​​the connection parts, allowing the load generated during battery swapping to be more effectively distributed along the longitudinal beams to the entire frame body, avoiding local stress concentration, and significantly improving the overall load-bearing capacity and structural stability of the frame body.

The utility model is suitable for main control board fixing device technical field provides a kind of main control board installation fixing device, including fixed seat and adjusting platform;Adjusting platform side symmetry distribution has a group of installation shaft;Rotary fit has same assembly platform between two installation shafts;Four side positions of assembly platform upper surface are all provided with side plate;The inside of each side plate is fixedly connected with electric push rod and flexible clamping component along horizontal direction;The device can be accurately and flexibly adjusted according to actual production demand Angle and position, easily adapt to various assembly tasks, meet the installation requirements of main control board and other components under the assembly scene of diversification, significantly improve the flexibility and versatility of assembly operation, in addition, flexible clamping component can evenly disperse initial contact pressure when clamping main control board, avoid local stress concentration, prevent main control board from being damaged due to excessive pressure, ensure the safety and stability of main control board in assembly process, further improve assembly quality and production efficiency.

The utility model relates to a kind of MEMS accelerometer, including substrate and multiple sensitive structures being set on the substrate, multiple the sensitive structure is connected by elastic coupling beam structure each other between, each the sensitive structure includes mass and the sensitive capacitor being set on the mass, the mass of adjacent two the sensitive structure is connected by the elastic coupling beam structure each other.The MEMS accelerometer provided by the utility model solves the problem that the existing MEMS accelerometer improves sensitivity and signal-to-noise ratio and leads to the problem of large spring beam thermal stress.

The utility model belongs to the technical field of machining and forming of automobile parts, and particularly relates to an automobile machined part bonding jig which comprises a bottom plate, a lower die, a pressing mechanism and an upper die, and the lower die is detachably connected to the bottom plate; the pressing mechanism is arranged on the bottom plate and located on one side of the lower die. The upper die is arranged at the output end of the pressing mechanism; wherein the bottom plate is provided with a controllable magnetic attraction mechanism, the output end of the controllable magnetic attraction mechanism faces the lower die, the lower die is provided with a magnetic part, and the controllable magnetic attraction mechanism can attract and fix the lower die on the bottom plate through the magnetic part. Local stress concentration can be avoided through uniform distribution of magnetic attraction force, the positioning stability of the lower die is ensured, meanwhile, adhesive residues are convenient to clean through the detachable design, and the maintenance difficulty is reduced. In addition, the modularized magnetic attraction fixing mode is compatible with rapid switching of lower dies of multiple specifications, and the flexible production capacity of a production line is effectively improved.

The utility model relates to the technical field of bearings, and discloses a liquid-lubricated heavy-duty bearing mechanism which comprises an outer ring, an inner ring is arranged in the outer ring, a limiting ring is arranged on the inner wall of the inner ring, a ball is arranged in the inner ring, a push rod is slidably connected in the inner ring, the bottom end of the push rod is fixedly connected with a connecting plate, and the bottom end of the connecting plate is fixedly connected with a piston rod. A tension spring is fixedly connected to the upper surface of the connecting plate, a transmission frame is fixedly connected to the lower surface of the connecting plate, a sliding rod is slidably connected to the outer wall of the transmission frame, a positioning rod is slidably connected to the outer wall of the sliding rod, a telescopic rod is fixedly connected to the outer wall of the sliding rod, and an oil conveying assembly is arranged in the inner ring. According to the utility model, through the cooperation of the push rod, the connecting plate, the tension spring, the transmission frame, the sliding rod, the telescopic rod and the positioning rod, the limiting ring is mounted and dismounted, the balls are limited or released, and local stress concentration of the balls is avoided, so that the overall bearing capacity of the bearing is improved.

The present application relates to the technical field of archery equipment, and particularly relates to a metal mixed carbon fiber arrow shaft, which comprises a middle carbon fiber pipe, a head stainless steel pipe, a tail metal pipe and a solid connecting piece, the head stainless steel pipe is arranged at the front end of the middle carbon fiber pipe, the tail metal pipe is arranged at the rear end of the middle carbon fiber pipe, and the two are connected and fixed through the solid connecting piece arranged in the middle carbon fiber pipe, and the outside is wrapped with carbon cloth and is formed through high-temperature curing. The present application adopts a segmented metal mixed structure, replaces a long-size metal inner core with a short metal accessory matched with a carbon fiber main pipe, and greatly reduces the difficulty of straightness control. The thickened head stainless steel pipe effectively bears the impact force, the solid connecting piece is in surface contact with the inner wall of the carbon pipe to disperse the stress, and the service life of the arrow shaft is significantly prolonged. The present application has reasonable structure, low cost and high efficiency, and is suitable for manufacturing various archery equipment.

The utility model relates to the technical field of button switch processing, in particular to a button switch cold bending tool which comprises a bottom plate and a top plate, the top of the bottom plate is fixedly connected with a lower die, the top of the lower die is connected with a jacking assembly, and the outer surface of the jacking assembly is sleeved with a button switch shell. Bending parts are arranged at four corners of the top of the button switch shell; an upper die is fixedly connected to the middle of the top plate, a forming cavity is formed in the bottom of the upper die, and the forming cavity is located over the button switch shell. According to the utility model, the compression of the buffer spring provides an upward counter-acting force for the jacking block, so that the button switch shell can be uniformly stressed in the cold bending process, and local stress concentration is avoided; when the upper die completes cold bending machining and moves upwards, the jacking block resets upwards under the elastic force effect of the buffer spring, the button switch shell is driven to return to the initial position, the button switch shell is conveniently taken down, and the production efficiency and the product quality are improved.

This utility model relates to a high-precision floating chuck mechanism. It includes a base plate, clamping components for holding both ends of a motor shaft, and a support component for supporting the motor shaft. The support component is located at the top center of the base plate. Two sets of clamping components are symmetrically arranged around the support component on the top of the base plate. Each clamping component includes a support seat mounted on the top of the base plate, a floating chuck mechanism for holding one end of the motor shaft, and a rotating spindle for driving the floating chuck mechanism. The rotating spindle is mounted on the support seat. The floating chuck mechanism is located at the output end of the rotating spindle. This invention solves the technical problem in existing motor shaft machining fixtures where some floating chucks reduce clamping impact through spring buffering, but the buffering mechanism is designed separately from the drive device, resulting in a bulky structure and delayed response. Furthermore, the lack of integrated buffering and limiting design makes it difficult to balance clamping force and stability.

This invention provides an automated assembly and tightening device for shaft-end nuts that is easy to verify, belonging to the field of industrial manufacturing technology. This invention achieves full automation of the nut assembly process by integrating components such as a base, conveying mechanism, nut supply device, assembly robotic arm, tightening mechanism, and verification system. Its core lies in employing a two-stage tightening control strategy, dividing the tightening process into preliminary tightening and reinforcement tightening stages. In the preliminary tightening stage, a low-speed, high-precision mode and dynamic damping control ensure correct thread engagement. The intermediate verification stage measures axial displacement values ​​to promptly detect anomalies. In the reinforcement tightening stage, a stepped torque-increasing algorithm ensures uniform stress distribution. Finally, multi-parameter comprehensive verification evaluates the tightening quality and generates a traceability code, effectively solving the quality instability problem caused by a single-stage tightening method for shaft-end nuts.

The utility model relates to the technical field of electric tilting valves, and discloses a novel electric tilting valve which comprises a supporting pipe, annular connecting plates are fixedly connected to the front end and the rear end of the supporting pipe respectively, a plurality of mounting holes are formed in the middles of the annular connecting plates, and annular limiting grooves are formed in the front end and the rear end of the supporting pipe respectively. The middle of the inner wall of each annular limiting groove is fixedly connected with an annular rubber ring, the annular rubber rings and the limiting grooves are arranged, the rubber rings are embedded in the annular limiting grooves in the two ends of the supporting pipe, double sealing is formed through pressing, and the leakage problem caused by vibration or deformation of a traditional valve body is solved; the installation holes in the annular connecting plate support rapid flange installation, the sealing face is evenly stressed, local stress concentration caused by traditional bolt direct connection is avoided, the servo motor and the rotating shaft are arranged, the rotating angle of the rotating shaft is controlled through the servo motor, and linear adjustment of flow or pressure is achieved.

The invention belongs to the technical field of high polymer materials, and particularly relates to high-thermal-conductivity and high-strength solid silicone rubber and a preparation method thereof. The high-thermal-conductivity and high-strength solid silicone rubber provided by the invention is prepared from the following raw materials in percentage by weight: 3%-30% of methyl vinyl silicone rubber, 3.1%-4.6% of white carbon black, 0.1%-1% of a white carbon black modifier, 0.3%-0.6% of a cross-linking agent, 0.01%-0.03% of a catalyst and the balance of filler, totaling 100%. The thermal conductivity of the high-thermal-conductivity and high-strength solid silicone rubber reaches 2.01 W / m.K and is superior to that of a traditional material, the heat conduction bottleneck of a charging gun can be effectively solved, and the heat dissipation efficiency is improved.

The invention relates to the technical field of pipeline hydrostatic testing machines, and discloses a high-pressure water equipment detection system which comprises a hydrostatic testing machine and a fixing clamp connected in the hydrostatic testing machine, one side of the inner wall of the hydrostatic testing machine is fixedly connected with a motor, the output end of the motor is fixedly connected with a main shaft, and the outer wall of the main shaft is sleeved with two sample discharging assemblies. The fixing clamp is located between the two sample discharging assemblies, each sample discharging assembly comprises a connecting plate, connecting toothed bars, a sample discharging plate and a fixing block, the two ends of each connecting plate are fixedly connected with the inner wall of the hydrostatic testing machine, the fixing blocks are fixedly connected with the sides, close to the fixing clamp, of the connecting plates, and the two symmetrically-arranged connecting toothed bars are fixedly connected to the bottom of the sample discharging plate; a sliding groove corresponding to the connecting toothed bar in position is formed in the surface of the fixing block. According to the high-pressure water equipment detection system, by using the lower sample plate, the upper sample block and the limiting plate, the pipeline can be subjected to one-time sample discharging and sample feeding, and batch automatic treatment of the pipeline is achieved.

The utility model relates to the technical field of the hanging pod, disclose a kind of hanging pod device with edge alignment, including support connecting plate one, the outside of support connecting plate one is fixedly connected with quick installation mechanism, the outside of support connecting plate one is fixedly connected with damping mechanism, the quick installation mechanism includes for driving driving assembly, the outside of driving assembly is fixedly connected with connecting fixed plate one, the outside of connecting fixed plate one is fixedly connected with connecting sliding plate one, the outside of connecting sliding plate one is fixedly connected with sliding connection block one, the bottom sliding connection of sliding connection block one has support slide rail.Indirectly push connecting sliding plate two in the utility model, two sliding clamping blocks are clamped to the hanging pod by moving towards, realize quick fixing, edge alignment degree is high, structure is symmetrical stable, support slide rail enhances reliability, guarantee that the hanging pod is connected firmly with unmanned aerial vehicle, improve operation safety and equipment service life.

The utility model relates to a kind of high trapezoidal multi-hole high cavity reinforced structure wall pipe, including pipeline main body, reinforcing rib is formed with spiral winding in pipeline main body outer end face, it is hollow, and cross-sectional shape is set to trapezoidal;Reinforcing rib outer end face spiral winding is formed with reinforcing pipe, reinforcing pipe is hollow tubular structure, its cross-sectional shape is circular, the outer diameter of reinforcing pipe is not greater than the maximum width of reinforcing rib;Reinforcing frame is arranged in the cavity of reinforcing rib, and it is tightly arranged with the inner wall of reinforcing rib, corrugated pipe is arranged in reinforcing pipe, and it is tightly arranged with the inner wall of reinforcing pipe.Compared with the defect that existing circular reinforcing rib is prone to depression, cracking under asymmetric load, the structure wall pipe is designed through trapezoidal cross-section reinforcing rib, utilizes the advantage that trapezoidal structure stress dispersion is uniform, lateral pressure resistance is strong, efficiently transfers external force such as soil pressure, ground load to pipeline main body, avoids local stress concentration.

The utility model discloses a kind of automobile stabilizer bar detection tool, it is related to automobile detection technical field, including box, two motors are installed in the inside of box, the one end of each motor is connected with screw rod, the outer wall of screw rod is connected with support with thread, the top end side of support is equipped with hydraulic cylinder, the telescopic end of hydraulic cylinder is connected with push rod, the outer wall of push rod is slidably connected with two push blocks, the inner wall of each push block is equipped with sliding slot, each push block is slidably connected with push rod by sliding slot;In the utility model, balanced force of stabilizer bar is realized by three-point positioning using fixing assembly, actual installation working condition is simulated, local stress concentration problem caused by traditional single-point, two-point clamping is avoided, ensure that stabilizer bar is evenly stressed during detection process, avoid deformation or damage caused by improper clamping, reduce the data deviation generated by clamping problem, improve detection accuracy.

The application discloses a multi-direction locking type tooling fixture for a numerical control machining center, which comprises a cabinet containing a platform plate, a clamp assembly is arranged on the platform plate, each clamp assembly contains two groups of linear motors, one group of linear guide rod modules, one group of rotary cylinders and one group of clamp carriages, the two groups of linear motors are arranged in parallel, the linear motor contains a first moving carriage, a bearing assembly is arranged on the first moving carriage, a limiting track is arranged on the lower surface of the linear guide rod module, the limiting track is in limiting sliding connection with one of the bearing assemblies, the linear guide rod module contains a second moving carriage, the rotary cylinder is fixedly installed on the second moving carriage, the rotary cylinder is in driving connection with the clamp carriage, and the clamp main body is installed on the clamp carriage. The linear guide rod module is driven by the two groups of linear motors, the linkage control of the rotary cylinder is combined, multi-dimensional accurate positioning of the clamp main body in the horizontal, vertical and rotary directions is realized, and the adaptability to special-shaped workpieces is remarkably improved.

The utility model relates to the technical field of mine hoisting, in particular to an eccentric gear clearance adjustable encoder device for a mine hoist, which comprises an end cover, a mounting hole is arranged on the end cover, and an eccentric gear component is mounted on the end cover through the mounting hole. The eccentric gear assembly comprises an eccentric bearing frame, a gear shaft I and a connecting body, the eccentric bearing frame is detachably installed on the front surface of the end cover, the connecting body and the eccentric bearing frame are installed in corresponding installation holes in the end cover, an encoder is installed on the outer side face of the connecting body, an input shaft of the encoder is connected with the shaft end of the gear shaft I, and an output shaft of the encoder is connected with the shaft end of the gear shaft II; the shaft end of the gear shaft I is installed in the eccentric bearing frame through a bearing, and the gear end of the gear shaft I is connected with a gear shaft II in an engaged mode. The encoder device solves the problems that an existing encoder device is large in gear meshing clearance due to insufficient machining precision and unstable in signal output due to the fact that the clearance is aggravated by abrasion after long-term operation, and then the control precision and safety performance of a mine hoist are affected.

The invention provides a calcium silicate board wet blank nondestructive separation method which comprises the following steps: S1, a vacuum adsorption device is designed to have at least two flexible adsorption areas with differential deformation characteristics, and the flexible adsorption areas are in surface contact with the surface of a wet blank; s2, sequential negative pressure adjustment is carried out on all the flexible adsorption areas through an air path control module, so that all the flexible adsorption areas generate differential deformation, the wet blank is driven to form non-uniform deformation in a preset form, and an adhesive layer of the wet blank and the bearing surface is damaged; s3, the wet blank is separated from the bearing surface and transferred to a target position; and S4, the negative pressure of each flexible adsorption area is relieved, so that the wet blank is separated from the adsorption state, and separation is completed. According to the invention, the differential deformation flexible adsorption area design is matched with the gas circuit control module to adjust the sequential negative pressure, so that the non-uniform deformation of the wet blank is realized to destroy the adhesive layer between the wet blank and the bearing surface, the purpose of non-destructive separation of the wet blank is achieved, the production efficiency is improved, local stress concentration is effectively avoided, and the product quality is improved.

The utility model relates to the technical field of bridge engineering, in particular to an arch foot node of a tied-arch bridge. Comprising an arch rib section, a straining beam section, a support stiffener, an arc transition plate, a node solid section and a cross beam section. A casting part form is adopted, the quality is controllable, and welding with other plates is easy; the arch rib section and the straining beam section are hollow except for the cross points, only external stiffening is reserved, and machining is convenient; solid casting is conducted at the junction of the arch rib tie beam and the cross beam, force transmission is optimized, and local stress safety of components is guaranteed; the support stiffeners are arranged according to the actual position of the cross beam section, and support vertical stress is dispersed; an arc transition plate is additionally arranged between the arch rib section and the straining beam section, a chamfer is additionally arranged at the joint of a top plate of the cross beam section and the straining beam section, and local stress concentration is avoided; grooves are additionally formed in the ends, connected with other components in a welded mode, of the arch rib section, the straining beam section and the cross beam section, and welding plate thickness transition is facilitated. The structure is simple, and the problem of stress concentration can be solved.

The large buzzing sheet comprises a metal substrate and a piezoelectric ceramic sheet arranged on the front surface of the metal substrate, the left side and the right side of the metal substrate are respectively provided with a side wing plate, the back surface of each side wing plate is fixedly connected with a back plate, and one side, far away from each side wing plate, of each back plate extends to the back surface of the metal substrate. The front of the side wing plate is fixedly connected with a front plate, the side, away from the side wing plate, of the front plate extends to the front of the piezoelectric ceramic piece, the top of the side wing plate is provided with a connecting plate, the front and back of the connecting plate are in swing connection with swing rods, and the sides, away from the connecting plate, of the swing rods extend to the outer side of the side wing plate and are fixedly connected with the side wing plate. Through the wrapping design of the left and right side wing plates, the back plate and the front plate, the piezoelectric ceramic piece is completely wrapped in the metal frame, a plane fixing mode of single glue bonding is replaced, the frame structure disperses shear force generated by vibration to the whole side wing plate system, stress is prevented from being concentrated on a glue bonding surface, and the service life is prolonged.

The invention discloses an electric control box, and the box comprises a box body which is provided with a mounting groove; the control panel is mounted in the mounting groove, and the control panel comprises a main board body and a power device connected to the main board body; the radiator is in heat-conducting connection with the power device; and the insect-proof cover covers one side, back on to the radiator, of the power device, and an insect-proof space for accommodating the power device is defined between the insect-proof cover and the radiator. Through local sealing protection of the power device, comprehensive sealing of the whole electric control box is not needed, infestation of insects to core components is accurately blocked, and protection redundancy caused by integral sealing is avoided. In terms of heat dissipation efficiency, heat transfer loss is reduced through direct heat conduction connection of the radiator and the power device, meanwhile, heat exchange between the radiator and the outside is not affected by the layout of the insect-proof cover, and the heat dissipation effect is guaranteed; on the aspect of structural optimization, the overall sealing structure is simplified through the local protection design, the size of the electric control box is reduced, and the assembly complexity and the production cost are reduced.

The invention provides a secondary reinforcing device and method for a reinforced concrete beam without dismantling a reinforcing steel plate, the device comprises an anchoring part, a connecting steel bar and a reinforced concrete layer, the steel plate is attached to the surface of the concrete beam and the reinforced steel plate, and the steel plate and the concrete beam are connected and anchored through bolts; the anchoring parts are connected with the concrete beam in an anchoring mode, meanwhile, the anchoring parts are arranged below the steel plate in a striding mode, the anchoring parts are connected into a whole through the connecting steel bars, and the area where the anchoring parts, the connecting steel bars and the steel plate are located is filled with the reinforced concrete pattern layer. On the basis that an existing reinforcing steel plate does not need to be dismantled, the flexural capacity and rigidity of the concrete beam are improved, construction steps are reduced, the construction efficiency is improved, meanwhile, the adopted geopolymer concrete is low in carbon emission and high in fireproof performance, and it can be guaranteed that the construction process is environmentally friendly and resistant to high temperature in the construction process.

The utility model discloses a high load automobile part frame for assembly line production relates to the technical field of automobile production, including base, the upper end center position of base is installed with center support column, the upper end symmetry of base is installed with two side plates, and the opposite end of two side plates is provided with the sliding slot, the inside installation of sliding slot has the hydraulic pressure rod, and the upper end common mounting of two hydraulic pressure rods has the crossbeam, the both ends of crossbeam all are provided with the lateral groove, and the inside rotation of lateral groove is connected with double screw thread rod, the surface symmetry of double screw thread rod is installed with the moving plate, and the lower end common mounting of same side two moving plates has the clamping plate, and the opposite end of two clamping plates all is installed with a plurality of equidistance arrangement's clamping block. The utility model discloses through setting a series of structures, through the collaborative structure of " center support column + double hydraulic pressure rod + double screw thread rod", realizes the stable support under the big load.

The invention relates to a battery assembly, which is characterized by comprising a shell for accommodating a plurality of battery cells; the heat dissipation part is positioned between the plurality of battery cells and the accommodating bottom surface; and a pad part located between a plurality of battery packs in which adjacent cells among the plurality of cells are grouped into one group according to a predetermined number of cells, the absolute value of the difference between the surface hardness of the heat dissipation part and the surface hardness of the pad part being less than or equal to a predetermined allowable value.