142results about How to "Improve structural integrity" patented technology

The utility model provides a large-span channel-crossing tied arch bridge tie beam vertical stepping lifting structure which comprises a plurality of lifting devices, each lifting device comprises a tie beam connecting device, a vertical threaded rod, a tie rod connecting frame, a hollow jack and a tie rod, and the lower end of the tie rod is connected to the tie rod connecting frame. The lower end of the hollow jack is connected with the upper end of the connecting sleeve, the lower end of the vertical threaded rod is connected with the straining beam connecting device, the upper end of the vertical threaded rod sequentially penetrates through the connecting sleeve and the hollow jack and then is connected with the upper suspension nut, and the vertical threaded rod is in threaded connection with the lower suspension nut. The lower hanging nut is used for being hung on the bottom wall so that the vertical threaded rod can be hung on the connecting sleeve. The lifting device has the advantages that the position of the straining beam can be conveniently and reliably lifted to meet the requirement, and the problem that the lifting cost is high due to the fact that a supporting platform is lapped in water to support lifting equipment to lift and lock the straining beam in the prior art is solved.

The invention discloses a support-free assembled integral open-cut driving tunnel structure system and a construction method. A bottom plate of a tunnel on the lowermost layer is of a bottom plate cast-in-place structure; the side wall and the top plate of each tunnel are each of a laminated slab structure. The laminated slab structure comprises a prefabricated slab facing the interior of the tunnel and a cast-in-place layer facing the exterior of the tunnel. The side wall of the uppermost tunnel and the cast-in-place layer of the top plate are integrally poured, and the cast-in-place layers of the other side walls and the cast-in-place layers of the corresponding top plates are separately poured; during construction, corner connecting components are arranged between the bottom plate and the side wall, between the bottom plate and the middle partition wall, between the top plate and the side wall or between the top plate and the middle partition wall of each tunnel. During construction, the side wall and the top plate of each layer of tunnel are assembled one by one, and the precast slab and the wall-attached enclosure of each side wall are used as a cast-in-place formwork of the side wall to pour concrete. No support is arranged in the construction process, no formwork is needed, efficiency can be improved, and the environment can be improved.

The invention discloses a paving device for garden pavement bricks, relates to the field of garden pavement paving, and solves the problems that an existing paving device for garden pavement bricks is low in operation efficiency and difficult to fully fill brick joints when filling the brick joints, and the paving device comprises a vehicle body, a loading hopper, a paving mechanism, a blocking mechanism and a recycling mechanism, the laying mechanism comprises a rotating cylinder, a driving cylinder and bristles, the recycling mechanism comprises a conveying belt, sandy soil in the loading hopper is evenly output to the upper sides of bricks through the laying mechanism, meanwhile, in the moving process of the vehicle body, the rotating cylinder is linked to rotate, horizontal reciprocating swing is conducted, and the sandy soil is fully stuffed into brick joints through the bristles for filling; in the moving process of the vehicle body, sandy soil at the bottom is continuously pushed to the bottom position of the vehicle body through linkage of the blocking mechanism, loss of the sandy soil around the vehicle body is reduced, redundant sandy soil is recycled into the loading hopper through the conveying belt through the recycling mechanism to be recycled, and the utilization rate of raw materials is increased.

The invention relates to a supporting and welding device and method for a steel structure box beam. The supporting and welding device comprises a supporting system, a welding supporting mechanism and a welding robot. The distance between supporting square steel on the left side and the right side of the supporting system can be adjusted through an adjusting head, the supporting square steel arranged front and back is connected into a whole through connecting square steel, the device can be directly used as a jig frame while better integrity is obtained, and efficiency is improved. The welding supporting system moves along a rail, so that the welding robot is more flexible to use, the equipment installation process is simplified, meanwhile, the maneuvering capacity of the welding robot is further improved by means of a first power gear and a lower rack arranged in an outer shell, and the welding robot can adapt to welding work of all positions of all types of bridge components; the supporting system and the slidable welding supporting mechanism are separated from each other, the design that the supporting system is fixed to the ground is adopted, and the reliability of the supporting system is improved while it is guaranteed that the welding robot has the higher degree of freedom.

The utility model discloses a large-length submarine cable conductor polyester tape automatic stripping machine which comprises a base and an outer cylinder vertically and fixedly installed on the base, an inner cylinder is coaxially and rotatably installed inside the outer cylinder, and a driving mechanism in transmission connection with the inner cylinder is fixedly installed outside the outer cylinder. The driving mechanism is suitable for driving the inner cylinder to rotate around the inner cylinder, a rotating table is coaxially and fixedly connected to the top of the inner cylinder, a through hole penetrating through the rotating table and the base is coaxially formed in the center of the inner cylinder, a belt detaching mechanism is installed on the rotating table, and a belt cutting mechanism fixedly installed on the outer cylinder is arranged below the belt detaching mechanism. According to the utility model, the polyester tape wound on the conductor can be automatically stripped and cut off, the device is installed in front of a cross-linking machine for use, the labor cost is reduced, and the production efficiency is effectively improved.

The utility model relates to the technical field of construction equipment, and provides an anchorage device pedestal mold. The anchorage device pedestal mold comprises a shell, a connecting assembly and a limiting piece. A containing space matched with an anchorage device pedestal is formed in the shell, and an opening is formed in one side of the shell. The connecting assembly is arranged on the periphery of the opening and is parallel to or overlapped with the plane where the opening is located. The limiting piece is arranged on the inner wall of the face, opposite to the opening, of the shell and used for limiting the embedded steel pipe. According to the anchorage device pedestal die, the defects that in the prior art, construction through an existing die is low in speed, low in work efficiency, large in number of construction joints, poor in structural integrity, prone to damage of anchorage device pedestal concrete and the like are overcome, and the concrete pile body and the anchorage device pedestal can be integrally formed and poured through the anchorage device pedestal die. The pile body and the anchorage device pedestal which are integrally formed have the advantages that the structural integrity is good, the appearance is attractive, the anchorage device pedestal is evenly stressed, no construction joint is reserved, and the construction period can be shortened.

The invention discloses a fabricated steel-ultra-high-performance concrete combined bridge deck structure with shear grooves and a construction method of the fabricated steel-ultra-high-performance concrete combined bridge deck structure, and relates to the technical field of bridge deck constructions.The bridge deck structure comprises a lower-layer steel bridge deck, an upper-layer prefabricated ultra-high-performance concrete bridge deck and shear connectors; the prefabricated ultra-high performance concrete bridge deck is provided with a shear groove, an embedded connecting piece penetrates through a groove opening of the shear groove in the transverse bridge direction, the two ends of the embedded connecting piece are embedded in the prefabricated ultra-high performance concrete bridge deck, the top of the shear connecting piece is fixed to the embedded connecting piece in a lap joint mode, and the bottom of the shear connecting piece is fixed to the steel bridge deck. A post-pouring layer is arranged between the prefabricated ultra-high performance concrete bridge deck and the steel bridge deck. The bridge deck slab is good in structural integrity, excellent in crack resistance and reasonable in stress, the interface connection problem of the prefabricated ultra-high-performance concrete bridge deck slab and the steel bridge deck slab can be effectively solved, the bearing capacity of a combined bridge deck system is improved, and the service life of the combined bridge deck system is prolonged.

The utility model provides a junked tire reinforced buried pipeline structure, which comprises a buried pipeline embedded in a buried pipeline groove; the first reinforced structure layer is arranged on the peripheral wall of the buried pipeline in a winding mode and located in the buried pipeline groove; the at least one second reinforced structure layer extends in the axial direction of the buried pipeline, and the at least one second reinforced structure layer is located above the first reinforced structure layer and located in the buried pipeline groove; and the soil body is backfilled in the buried pipeline groove. The second reinforced structure layer is arranged, the second reinforced structure layer is used for forming a strong lateral restraining effect on the overlying soil body of the buried pipeline, and meanwhile the structural integrity of the overlying soil body is enhanced. When the earth body on the buried pipeline is subjected to external impact load, the second reinforced structure layer can play a role of'net bag 'at the moment, so that the bearing capacity of the earth body on the buried pipeline is improved.

The utility model discloses a multi-specification different parting surface O-shaped rubber sealing ring forming mould which comprises an upper mould plate and a lower mould plate, a plurality of upper mould core holes are arranged on the upper mould plate, a plurality of lower mould core holes are correspondingly arranged on the lower mould plate, a plurality of mould core groups are arranged on the upper mould plate and the lower mould plate, and the mould core groups are arranged on the upper mould plate and the lower mould plate. Each mold core group is provided with different mold cavities and parting surfaces, each mold core group comprises a plurality of mold cores, each mold core comprises an upper mold core and a lower mold core, the upper mold core is mounted in an upper mold core hole of the upper mold plate in a hanging manner, and the lower mold core is mounted in a lower mold core hole of the lower mold plate in a hanging manner. According to the utility model, O-shaped rubber sealing rings with 45-degree parting surfaces and 180-degree parting surfaces, which have the same rubber material and vulcanization three elements in the same range and have different sizes and specifications, are simultaneously processed and formed in the same set of die, so that the processing efficiency is improved, and the production cost is reduced.

The utility model provides an energy dissipation and shock absorption node for a beam column of a recombined bamboo frame, belongs to the technical field of civil construction structures, and solves the problems that the research on the connection form of a recombined bamboo component is insufficient, tenons are easy to pull out in the traditional tenon-and-mortise connection mode, and splitting damage is easy to occur in the steel filling plate-bolt connection mode. The joint comprises a recombined bamboo column, a recombined bamboo beam and a special-shaped steel filling plate connecting piece, the joint adopts combined connection of mortise and tenon connection and steel filling plate-bolt connection, the relative displacement of the recombined bamboo column and the recombined bamboo beam is effectively limited to be too large, and joint failure caused by tenon pulling is avoided. The middle layer of the special-shaped steel filler plate connecting piece is a recombined bamboo plate, and splitting damage caused by local extrusion is effectively prevented. The outermost layer is the friction energy dissipation composite rubber sheet, under the earthquake action, the bolts slide relatively through the long circular bolt holes to dissipate energy, and meanwhile the friction energy dissipation composite rubber sheet on the outer surface layer of the connecting piece dissipates energy through friction. The steel filling plate connecting piece is arranged to be in a special shape, so that stress distribution is more reasonable.

The invention relates to the technical field of shock insulation supports, and provides a building shock insulation support connecting joint and a construction method thereof. An upper fixing plate is fixed to an upper support plate and used for bearing a building structure, a lower fixing plate is arranged on a foundation, and a lower support plate is fixed to the lower fixing plate; the sliding block is arranged between the upper support plate and the lower support plate in a sliding mode, the shape of the upper surface of the sliding block is matched with the shape of the inner side of the upper support plate, the shape of the lower surface of the sliding block is matched with the shape of the inner side of the lower support plate, the inner side of the upper support plate abuts against the upper surface of the sliding block, and the inner side of the lower support plate abuts against the lower surface of the sliding block. The sliding space is formed between the upper support plate and the lower support plate, the sliding block slides in the sliding space when an earthquake occurs, so that the upper support plate and the lower support plate are staggered, and the problems that a rubber shock insulation support is not suitable for a large building or a heavy-load structure, and the shock insulation and absorption effect on impact force in the horizontal direction is poor are solved.

The invention discloses a micro-vibration control construction process for a grating vibration isolation foundation, and relates to the technical field of building construction. Comprising the following steps: S1, measuring and positioning: measuring and releasing sideline control piles of each shock insulation pier and a sand-gravel cushion layer; s2, construction of a graded gravel cushion layer; s3, compaction coefficient detection; s4, paying-off is conducted on the bottoms of the shock insulation piers, wherein the sideline control point of each shock insulation pier is measured and paid off; s5, side formwork installation and steel bar binding, wherein the distance between the vibration isolation pier and the equipment walkway foundation is 10 cm, a foam polyethylene plate with the thickness of 10 cm is adopted as the side formwork, and the side formwork and the steel bars are installed, bound and formed together; s6, mass concrete pouring and temperature control, wherein layered pushing type continuous pouring is adopted, and the thickness of each layer does not exceed 50 cm; s7, concrete curing; and S8, buffer seam treatment. The compaction graded gravel cushion layer is arranged as a vibration isolation filtering layer, and the large-scale independent vibration isolation pier body is combined, so that double isolation of earthquake dynamic response and environmental vibration is effectively realized, and stable operation of a precise instrument is ensured.

The present invention discloses a prefabricated staircase and a production and construction method thereof, belonging to the field of prefabricated staircases, and the production and construction method comprises the following steps: bottom mold assembly: the bottom mold is assembled into a standard riser height and tread height of a stone material, and the riser height reserves the thickness of the stone material; stone material installation: a waterproof interface agent is applied to the back of the stone material, anchor holes are drilled on the stone material and filled with adhesive in the anchor holes, claw nails are fixed to the anchor holes of the stone material, a filling hole is formed between the claw nails and the back of the stone material, and then the front of the stone material is positioned at the tread and riser positions corresponding to the bottom mold, and the joints that appear are waterproof and sealed; steel cage installation: the steel cage is hoisted onto the bottom mold; side mold assembly; concrete pouring; the prefabricated staircase comprises a staircase body, stone material and a steel cage. The prefabricated staircase and the production and construction method thereof of the present invention enable the stone material to be firmly connected to the staircase body, have good integrity, good waterproofness, strong environmental applicability, are easy to install on site, and have little impact on the installation environment.

The application discloses a MAX phase reinforced three-dimensional network tin-based lead-free solder and a preparation method thereof, and belongs to the technical field of lead-free solder. The MAX phase reinforced three-dimensional network tin-based lead-free solder is characterized in that the MAX phase reinforcing phase is distributed in the form of a three-dimensional continuous network skeleton at the grain boundary of a tin-based lead-free solder matrix; and the MAX phase reinforcing phase forms a continuous network penetrating through the whole tin-based lead-free solder matrix. The application also discloses an application of the MAX phase reinforced three-dimensional network tin-based lead-free solder in a high-temperature, high-load and high-frequency vibration scene. Through process innovation and performance optimization, the application aims to finally prepare a "high-strength, high-plasticity and high-temperature stability" tin-based three-dimensional network composite solder, solves the problem that a traditional tin-based single-component lead-free solder is prone to deformation and cracking due to thermal stress and mechanical load, improves the reliability of electronic packaging, and expands the application range of the tin-based lead-free solder in high-demand fields.

The utility model provides a kind of skeleton assembly, stator assembly, motor, the skeleton assembly among them includes insulating skeleton and wiring connector, insulating skeleton includes first end part, first end part is formed with first slot, wiring connector includes plug-in part, and it is formed with protrusion on plug-in part, wiring connector is inserted in first slot by plug-in part, protrusion is in first slot, and protrusion abuts the groove wall of first slot.According to the utility model, wiring connector is assembled on insulating skeleton by the moderate means of insertion in the first slot of insulating skeleton, instead of using equipment to force into, so it can avoid insulating skeleton to break due to external force, thereby improve the convenience and stability of assembly, so that the structure of skeleton assembly is good in integrity, high in strength.Simultaneously, the protrusion on plug-in part abuts the groove wall of first slot, equivalent to the interference fit of insulating skeleton and first slot, thereby also enhance the assembly stability of wiring connector on insulating skeleton.

The utility model provides a spare tire mounting seat which comprises a mounting seat body which is integrally formed, the mounting seat body is provided with a connecting face and a limiting face which are spaced from each other, the connecting face is connected with a vehicle body mounting position, the limiting face abuts against a spare tire hub, and the limiting face is provided with a fastener suitable for fixing the spare tire hub. A supporting enclosure bulkhead is formed on the portion, located between the connecting face and the limiting face, of the installation base body, and reinforcing supporting ribs are arranged on the inner side wall face and / or the outer side wall face of the supporting enclosure bulkhead. According to the spare tire mounting seat provided by the utility model, the integrally-formed mounting seat body can omit connecting welding seams among parts, so that the situation that the welding seams are broken due to stress concentration is avoided, the structural strength of the mounting seat body is improved, and weight reduction is facilitated; in addition, reinforcing supporting ribs are arranged on the inner side wall face and / or the outer side wall face of the supporting enclosure bulkhead, the structural strength of the installation base body can be further improved, the risk of stress fracture is reduced, and therefore the installation reliability of the spare tire is improved.

The utility model relates to an integral abutment device suitable for a cold-bending curled U-shaped steel composite beam. At present, separated bridge abutments and semi-integral bridge abutments are complex in structure and tedious in construction, bridge heads are prone to damage, and durability is poor. The U-shaped cross-section cold-bending edge-curling concrete bridge comprises a cold-bending edge-curling U-shaped cross-section steel beam, a concrete bridge deck slab and an integral bridge abutment, the upper flange of the cold-bending curled-edge U-shaped-section steel beam is fixedly connected with the concrete bridge deck, the two ends of the cold-bending curled-edge U-shaped-section steel beam are embedded into the integral bridge abutment, and longitudinal load-bearing steel bars are arranged in the concrete bridge deck. Holes are formed in the two webs, close to the side of the integral bridge abutment, of the cold-bending curled-edge U-shaped-section steel beam respectively, and transverse penetrating steel bars are arranged in the holes. According to the utility model, the construction speed and the industrialization degree are improved, the bending and shearing resistance of the small and medium span beam bridge is enhanced, and the stability and durability of the beam body are improved.

The utility model discloses a placement rack structure for stator iron core monomer winding, and aims to provide a placement rack structure for stator iron core monomer winding, which can be flexibly adjusted to adapt to winding. The iron core comprises an iron core body and a fixed support, one end of the fixed support is connected with the iron core body, the other end of the fixed support is provided with a movable groove, the movable groove is movably connected with a movable support, the movable support is connected with a locking assembly, the locking assembly is movably connected with the fixed support, and the fixed support is provided with a first limiting groove. The storage rack has the beneficial effects that the storage rack can be flexibly adjusted and has dosage adaptability; the structure connection is stable and the arrangement is regular; the structural integrity is improved, and winding is more neat and uniform; the assembly is convenient.

The utility model provides a connector and an electrical element, and the connector comprises a female end which comprises a plurality of pins; and the male end comprises a first male end and / or a second male end, the first male end is provided with a plurality of first jacks, the plurality of first jacks are used for allowing part of the contact pins to be inserted, the second male end is provided with a plurality of second jacks, and the plurality of second jacks are used for allowing at least part of the contact pins to be inserted. According to the utility model, the first male end can be plugged with part of the pins of the female end, and the second male end can be plugged with part or all of the pins of the female end, so that one female end corresponds to a plurality of male ends, and the number of wire harness interfaces can be reduced.

This utility model discloses an automatic centering ball-distributing oscillator structure, belonging to the field of bearing assembly. The automatic centering ball-distributing oscillator structure includes an upper connecting seat, with a lower connecting seat at the bottom of the upper connecting seat. The upper and lower connecting seats are interconnected by a centering structure. This utility model solves the problems of traditional oscillating ball-distributing mechanisms, where a single soft rubber body directly connects to the ball distributor for rotational oscillation, or directly connects to an object for rotational oscillation. These mechanisms are prone to breakage of the connecting rubber body, resulting in a short service life, frequent replacement of parts, low production efficiency, and increased operating costs. More critically, when using a single soft rubber body structure, the concentricity of the oscillating component is poor, preventing automatic centering. When used in bearing production equipment, the poor concentricity of the oscillating component frequently causes it to bump against the bearing edge. This utility model patent solves all these problems, resulting in significant economic benefits.

The utility model relates to the technical field of house board material, especially a tenon and mortise structure board of preventing deformation, including board body, the T type sliding slot is seted up in the board body side, its other side is fixedly connected with the T type sliding block of sliding in the T type sliding slot, the spring hole is seted up in the T type sliding slot inner wall, the compression spring is fixedly connected in the spring hole, the compression spring end is fixedly connected with the plug -in rod of sliding in the spring hole, the fixed hole is seted up on the T type sliding block. The utility model discloses a piece of board body right side T type sliding block is inserted into the T type sliding slot of initial board body left side, can fast complete two board body tenon and mortise connection, and in the process of plugging, T type sliding block extrusion plug -in rod, make it retract into spring hole and compress compression spring, when the fixed hole on T type sliding block and the position of plug -in rod coincide, compression spring resets under the action of self elasticity, thereby promotes plug -in rod and inserts fixed hole, completes two board body fixing, avoids two to separate.

The application relates to a top structure of a steel pipe concrete composite tower, the steel pipe concrete composite tower and a bridge, the top structure comprising a stiff skeleton column and a steel box beam, the steel box beam comprising a bottom steel plate and a top steel plate, the main steel pipe of the stiff skeleton column being connected to the bottom of the bottom steel plate, longitudinal webs and transverse webs being connected between the top steel plate and the bottom steel plate, first through holes being arranged on the bottom steel plate, the top steel plate, the longitudinal webs and the transverse webs respectively, first steel bars being arranged in the first through holes to form PBL shear keys, and the top region of the stiff skeleton column and the steel box beam being wrapped with concrete. The steel box beam, the main steel pipe and the wrapped concrete are connected by the PBL shear keys to form an integral whole, the huge pressure at the cable saddle can be transmitted to the stiff skeleton column, the steel box beam is fixedly connected with the stiff skeleton column, the steel box beam, the main steel pipe and the wrapped concrete work cooperatively, the structure has good integrity, the force transmission of the node is clear, the top structure has simple structure, convenient operation, short construction period and good effect.

The invention relates to a cantilever crane beam for an industrial factory building and a wall-mounted cantilever crane system. The cantilever crane beam comprises a stand column supporting frame; the reverse prestress mechanism comprises a supporting truss, an upper steel plate, a lower steel plate and two layers of prestress cables, the supporting truss is connected between the two adjacent stand column supporting frames, the upper steel plate and the lower steel plate are arranged at the top and the bottom of the supporting truss respectively, the two layers of prestress cables penetrate through the supporting truss between the upper steel plate and the lower steel plate, and the two ends of the two layers of prestress cables are anchored to the two adjacent stand column supporting frames; the two ends of the first crane beam are welded and fixed to the supporting platform, the upper flange and the lower flange of the first crane beam are welded and connected with the upper steel plate and the lower steel plate respectively, and one side of a web is welded and fixed to the supporting truss; one end of each cantilever crane beam is fixedly welded with the other side of the web of the first crane beam, and the other end of each cantilever crane beam is vertically welded with an H-shaped short beam downwards. Reverse bending moment is applied to the supporting truss through the reverse prestress mechanism, deformation of the supporting truss is reduced, and the bearing capacity of the whole structure is improved.

The utility model discloses a multi-frequency heat pump through shaft self-water-feeding structure, which belongs to the field of multi-frequency heat pumps and comprises a heat pump body, an upper drain plate, a rotor outer cover and an upper cover plate are sequentially and fixedly mounted at the top of a shell, an upper valve plate is fixedly mounted at the top of the upper cover plate, and a lower valve plate is fixedly mounted at the bottom of the shell. An upper valve plate is fixedly installed in the shell, a water outlet tee joint is fixedly installed at the top of the upper valve plate, a lower drainage plate and a lower base are sequentially and fixedly installed at the bottom of the shell, and a water inlet connector is fixedly installed on one side of the lower base. The impeller rotating at a high speed actively pumps water upwards through the overflow groove, the first communication opening and the water inlet through hole, the efficiency that the water climbs upwards after entering the impeller cavity is improved, the water can penetrate through the interior of the shell more easily and reach the energy adding rotor, the contact efficiency of the water and the energy adding rotor is improved, and the temperature rising efficiency of the water is improved.

This utility model discloses an assembled design structure for irregularly shaped aluminum plates with a ring-shaped, stacked configuration, comprising: a base plate, an upper ring-shaped aluminum plate, and a lower ring-shaped aluminum plate, which are respectively suspended from the base layer of a wall by lifting rods; an upper positioning seat, which is arranged at the bottom edge of the base plate and the upper ring-shaped aluminum plate, with the top of a connector slidably connected to a first oblong hole extending in the x-axis direction on the upper positioning seat, and a first cap abutting against the end face of the upper positioning seat; a lower positioning seat, which is arranged on the top surface of the upper and lower ring-shaped aluminum plates, with the bottom of a connector slidably connected to a second oblong hole extending in the y-axis direction on the lower positioning seat, and a second cap abutting against the end face of the lower positioning seat; and several lamps. This utility model can solve the problems of existing irregularly shaped aluminum plate structures, such as difficulty in achieving efficient, safe, convenient, and detachable assembly, and insufficient structural integrity, structural strength, and seismic performance.

The invention discloses a steam-water separation device for an air compressor, relates to the field of steam-water separation devices for air compressors, and solves the problems that an existing steam-water separation device for an air compressor is difficult to realize self-cleaning in a separation process when in use, so that the separation is not efficient enough. Comprising a shell, a conveying pipe, an exhaust pipe, a separation mechanism, a cleaning mechanism and a condensation mechanism, the separation mechanism comprises a filter screen ring, a driving wheel and a guide wheel, and the cleaning mechanism comprises a partition plate and an electric heating piece. A set amount of gas penetrates through the partition plate through the cleaning mechanism, is heated by the electric heating piece and then is reversely blown to the side face of the filter screen ring, the filter screen ring is dried and cleaned, waste gas is exhausted through the exhaust pipe, and water vapor in the gas filtered by the filter screen ring is condensed and output through the condensation mechanism.

This invention discloses a symmetrical non-rotational composite material oblique mesh structure suitable for automated molding, comprising an upper frame, a lower frame, and bidirectional helical ribs; the upper frame, lower frame, and bidirectional helical ribs are integrally molded structures, and the structural materials used for the upper frame, lower frame, and bidirectional helical ribs are composite materials; the bidirectional helical ribs include two mutually symmetrical ribs, and the center line of the outer contour surface of each rib is a helix with equal pitch, equal helix angle, or geodesic. This invention further discloses methods for determining the center line of ribs used in various typical symmetrical non-rotational structures applied in aerospace engineering. The oblique mesh structure of this invention is rationally designed, lightweight, and suitable for automated mass production.

The application discloses a kind of semi-active shock absorber, including cylinder body assembly and the base fixed in the rear end of cylinder body assembly, the cylinder body assembly includes pressure cylinder, intermediate cylinder and oil storage cylinder, piston assembly is arranged in the sliding seal of pressure cylinder, and pressure cylinder is divided into pressure cylinder upper cavity and pressure cylinder lower cavity, piston rod is arranged in the pressure cylinder upper cavity, the front end of piston rod extends to the outside of cylinder body assembly, and rear end is fixedly connected with piston assembly, valve group and oil circuit system are arranged on the base, the front end of intermediate cylinder is communicated with pressure cylinder upper cavity, and rear end is communicated with pressure cylinder lower cavity and oil storage cylinder by oil circuit system, and the valve group includes first high-speed on-off valve, second high-speed on-off valve, manual overflow valve, electric control proportional valve and third high-speed on-off valve which are distributed along the circumferential direction and surround the outer circumferential surface of cylinder body assembly.The application is integrally arranged with all control valves and shock absorber, and installation space is reduced, which can be interchangeably installed and used with passive shock absorber, without changing vehicle bogie structure.

The utility model provides a front floor reinforcing structure and a vehicle, which comprises a front floor body, a rear floor front cross beam reinforcing plate, a front row seat rear mounting beam and a floor reinforcing plate, the rear floor front cross beam reinforcing plate is connected to the rear side edge of the front floor body, and the front floor body comprises a front floor middle channel. The front-row seat rear mounting beam and the floor reinforcing plate are connected to the upper portion of the front floor body, the front-row seat rear mounting beam is connected with the front floor middle channel, and the floor reinforcing plate is located between the front-row seat rear mounting beam and the rear floor front beam reinforcing plate. According to the front floor reinforcing structure, the front floor middle channel, the front row seat rear mounting beam, the floor reinforcing plate and the rear floor front cross beam reinforcing plate are enclosed to form the frame structure, so that the structural integrity of the front floor is enhanced, the structural rigidity and strength of the front floor are improved, and the deformation resistance of the front floor is enhanced; deformation caused by manual treading is avoided, and safe use of the under-vehicle battery pack is guaranteed.

The utility model relates to the technical field of steel reinforcement cage, concretely to the whole structure of variable diameter steel reinforcement cage, including concrete cushion layer, be provided with screw thread reinforcement in concrete cushion layer, the bottom plate body is provided with screw thread reinforcement above concrete cushion layer, the anchor is connected with the screw thread reinforcement upper end, be provided with spiral stirrup between anchor and bottom plate body, be provided with multiple groups of bent reinforcement on bottom plate body, the stretchable part is provided with screw thread reinforcement below concrete cushion layer, the utility model, screw thread reinforcement, bottom plate body, bent reinforcement and spiral stirrup etc. jointly constitute the stable steel reinforcement cage structure, screw thread reinforcement as main force component, bear the tension and pressure, bottom plate body positioning and supporting split type variable diameter steel reinforcement cage, ensure its correct position in concrete member, bent reinforcement resists shear force, strengthens the structural integrity, spiral stirrup restricts concrete, improves its compressive strength and deformation capacity, makes the structure more stable, can better bear various loads.