179results about How to "Avoid local stress concentrations" patented technology

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.

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 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 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 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 utility model relates to the technical field of shock absorbers, in particular to a thermal shrinkage film damping spring sleeve, which mainly solves the problems that the shock absorber in the prior art is poor in operation smoothness and generates friction sound, and comprises a spring and a thermal shrinkage film sleeve sleeved on the spring, the inner diameter of the thermal shrinkage film sleeve is 20mm-32mm, the thickness of the thermal shrinkage film sleeve is 0.1 mm-0.3 mm, and the inner diameter of the thermal shrinkage film sleeve is 20mm-32mm. The shrinkage rate of the thermal shrinkage film sleeve is 0.5, and the ratio of the axial length of the spring to the axial length of the thermal shrinkage film sleeve is (3-5): 1.

The invention discloses a damaged carton recycling device and method for carton packaging, and relates to the technical field of waste recycling, the damaged carton recycling device comprises a shell, two door bodies rotationally installed on the shell, a control module fixedly installed outside the shell and a data display module, the compaction assembly is mounted in the shell; the hydraulic rod is fixedly mounted at the top of the shell; and the compaction assembly comprises a bottom plate fixedly mounted at the bottom of the shell and an extrusion plate slidably mounted in the shell, a connecting sleeve is fixedly mounted on the extrusion plate, and the driving end of the hydraulic rod is fixedly connected with the connecting sleeve. The carton compacting device has the advantages that in the carton compacting process, through pressure equalizing and buffering of the pressure buffering assembly, negative pressure air exhaust gap discharging and resistance reducing, lateral protection restraining deformation and repeated tamping successive exhaust plastic deformation, the interlayer fitting degree and uniformity of paperboards can be synergistically improved, and the higher compression ratio and the lower rebound rate are achieved.

The utility model provides a kind of water pump pump head, belong to water pump technical field.It solves the problem of insufficient structural strength of pump head in prior art.The utility model includes pump cover, pump head main body and connecting disc body, pump head main body is integrally formed and pump body main body includes water storage body and impeller body, water storage body and impeller body inside form water storage chamber and impeller chamber respectively, water storage chamber and impeller chamber are interconnected, connecting convex is formed outside impeller body and pump cover is attached with connecting convex and is fixed by bolt, water pump impeller is installed in impeller chamber, the pump head main body of one side of water storage chamber is formed with sealing cylinder, sealing assembly is installed in sealing cylinder, the periphery of pump head main body is formed with a plurality of first connecting columns, the periphery of connecting disc body is formed with a plurality of second connecting columns, first connecting column and second connecting column correspond and the end face of first connecting column and the end face of second connecting column are attached with setting.The utility model has the advantages of higher structural strength.

The present application relates to the technical field of net rack structure reinforcement, and particularly relates to a welding-free full-assembled net rack rod piece reinforcement device and method. The device comprises: a fixed center bearing frame for reinforcing a circular tube component; a telescopic vertical sliding inclined strut assembly arranged between two adjacent vertical fixed vertical rods; an assembled sectional sleeve assembly for fixing the fixed center bearing frame outside the circular tube component; a cable body for connecting two connecting bases on the fixed center bearing frame; and a tensioning adjusting mechanism for adjusting the tension of the cable body. The welding-free full-assembled net rack rod piece reinforcement device and method provided by the present application adopts a welding-free full-assembled construction process, and the components are standardized prefabricated in a factory. The components are only assembled by bolts and pins at the site, so that the construction is safe and efficient, welding damage is avoided, and the original structure performance is not affected. The components are connected by bolts, so that the components are convenient to disassemble and assemble, the components can be recycled and reused, and the engineering cost is reduced.

The invention discloses a preparation method of a water-permeable material for a water-permeable tree surrounding brick, belongs to the technical field of preparation of water-permeable brick materials, and aims to solve the technical problem that the mechanical property and durability of the water-permeable tree surrounding brick prepared from the water-permeable material in the prior art need to be further improved. The zwitterionic grafted porous silicon-aluminum dispersion, the magnesium-silicon gel composite magnesium carbonate dispersion and the ettringite composite hydroxyapatite whisker are introduced in the preparation process, and a continuous cementation structure, an interface transition structure and a space constraint support structure are cooperatively constructed on different structural scales; a stable and matched composite system is formed among the cementing phase, the aggregate and the pore structure, and the coordination and stability of the whole structure of the water-permeable tree surrounding brick are effectively maintained through the synergistic configuration of the multiple components in the system, so that the structure integrity and the use reliability are considered while the material meets the water-permeable requirement; the method is suitable for the field of garden and municipal permeable pavement.

This utility model discloses a miniature ball bearing for a cooling fan, comprising an outer ring, an inner ring, a cage, a dust cover, and rolling elements movably disposed between the outer and inner rings. Both the inner and outer peripheral walls of the outer ring and the inner ring have circumferentially formed grooves for the rolling elements to move. Both ends of the inner peripheral wall of the outer ring have circumferentially formed stepped grooves for installing the dust cover. The connections between the grooves of the inner ring and the outer peripheral wall of the inner ring, and between the grooves of the outer ring and the inner peripheral wall of the outer ring, have chamfered edges. A retaining spring is provided in the stepped groove for an interference fit with the stepped groove. The inner wall of the retaining spring abuts against the outer wall of the dust cover, while the outer peripheral wall of the dust cover has a clearance fit with the inner peripheral wall of the stepped groove. The curvature coefficient of the grooves of the outer ring is greater than that of the grooves of the inner ring. This utility model solves the problems of traditional miniature ball bearings, such as increased bearing ellipticity due to dust cover installation leading to out-of-tolerance bearing ellipticity, and assembly damage during rolling element installation leading to unqualified rolling element vibration during bearing operation.

This invention belongs to the field of photovoltaic panel cleaning technology, specifically relating to an intelligent cleaning device and method suitable for large-angle flexible photovoltaic roofs. The intelligent cleaning device for large-angle flexible photovoltaic roofs includes an anchoring and traction system and a cleaning robot body. The anchoring and traction system includes a winch assembly installed on the roof, a composite cable connected to the winch assembly, and a central control unit. The composite cable integrates a traction rope, a power supply cable, and a water supply hose. The cleaning robot body is connected to the winch assembly via the composite cable and includes a walking and adsorption mechanism, an intelligent adsorption pressure control system, and a cleaning mechanism. The walking and adsorption mechanism is a tracked vacuum suction cup composite walking mechanism. The intelligent cleaning device for large-angle flexible photovoltaic roofs of this application enables safe, stable, and efficient fully automated cleaning operations on the surface of large-angle, flexible photovoltaic panels using the cleaning robot body.

The application relates to the auxiliary technology field of asphalt sample production and discloses a demolding machine, which comprises a material ejection mechanism for ejecting samples to separate the samples from molds; the material ejection mechanism comprises a fixed part, a driving part and a material ejection part, the fixed end of the driving part is connected with the fixed part, and the driving end of the driving part is connected with the material ejection part; the driving part comprises a plurality of first air cylinders and a plurality of second air cylinders, the plurality of first air cylinders are arranged in a ring array, the plurality of second air cylinders are arranged in a ring array, and the second air cylinders are arranged between the central axis of the fixed part and the first air cylinders; the material ejection part comprises a first material ejection block and a second material ejection block, the first material ejection block is arranged around the edge of the second material ejection block, the first material ejection block is drivingly connected with the first air cylinders, and the second material ejection block is drivingly connected with the second air cylinders. The application realizes stable demolding of samples with different sizes through the switchable double-cylinder driving structure, effectively solves the problem of uneven stress, and significantly improves the finished product rate and production efficiency.

The utility model discloses a kind of reinforced structures of roll type membrane element end cover, belong to reverse osmosis membrane element technical field.The structure includes end cover body and card strip grid.The end cover body includes outer ring, inner ring and multiple end cover support skeletons connecting outer ring and inner ring, the inner circumferential surface of the outer ring is circumferentially distributed with multiple for detachable connection reverse type buckle cooperation structure;The protruding buckle that the card strip grid two ends are equipped with is matched with the reverse type buckle cooperation structure;Multiple the card strip grid is connected between two end cover bodies by the cooperation structure, and form adjustable overall support frame.The utility model is through above-mentioned modular adjustable combination structure, the significant improvement of end cover strength and the balanced adaptation to different diameter membrane element are realized, effectively disperses stress, avoid the problem such as end cover cracking and glass steel fracture caused by stress concentration, significantly prolong the service life of membrane element under high pressure high salt working condition.

The utility model belongs to bridge floor construction equipment technical field, specifically disclose a kind of assembly type bridge floor system hoist, including bearing frame, the bearing frame includes two first crossbeam of opposite arrangement, two first crossbeam between being equipped with two second crossbeam, the both ends of second crossbeam are connected to two first crossbeam respectively, still be equipped with several third crossbeam between two second crossbeam. The utility model provides a kind of assembly type bridge floor system hoist, the upper end of the junction of first crossbeam and second crossbeam, the lower end of the junction of first crossbeam and second crossbeam, the lower end of the junction of second crossbeam and third crossbeam are all equipped with mounting lug, form three-dimensional lifting point network, can be according to the geometry of bridge floor component and gravity center position flexible selection lifting point combination, realize load uniform distribution, effectively avoid local stress concentration, reduce hoist deformation or component damage risk, especially suitable for large-span or special-shaped bridge face high-precision hoisting demand.

This application relates to the field of vehicle chassis and provides a suspension structure and a vehicle. The suspension structure of this application includes an outer tube, an inner core disposed within the outer tube, and an elastic body disposed between the outer tube and the inner core. The elastic body has a first portion wrapped around the inner core and a second portion connected to the first portion. The second portion is disposed at the end of the inner core connected to the powertrain bracket, and when the inner core is connected to the powertrain bracket, the second portion can abut against the powertrain bracket. The suspension structure of this application can increase the friction between the elastic body and the powertrain bracket, and also increase the friction between the powertrain bracket and the inner core during the connection process, preventing the inner core from shifting. This effectively avoids torsional deformation of the elastic body, thereby improving the reliability of the elastic body and the overall suspension structure.