30results about How to "Dissipative effective" patented technology

The invention discloses an ultrathin acoustic shielding screen for absorbing sound by using a coplanar hollow tube. The ultrathin acoustic shielding screen is composed of a screen plate, an opening plate with a through hole, and a resonant tube with one open end and one sealed end. The resonant tube is embedded into the screen plate in a coiled manner. The opening end of the resonant tube is in sealed connection with the through hole of the opening plate. The ultrathin acoustic shielding screen differs from a conventional linear hollow tube structure. The central axis of the coplanar hollow tube is in a curved shape and the coplanar hollow tube is embedded in the acoustic shielding screen in a two-dimensional coiled manner. The total thickness of the acoustic shielding screen is far less than the wavelength of an acoustic wave absorbed by the acoustic shielding screen and is just one percent of the wavelength of the absorbed acoustic wave.

The invention discloses a bush constraint buckling-preventing support with a diamond-shaped energy dissipation unit. The bush constraint buckling-preventing support is characterized in that the bush constraint buckling-preventing support comprises an end constraint segment, an energy dissipation segment and a bush; and the two ends are connected with beams or column components or nodes to form a whole through bolts so as to achieve the purpose of improving of the resistant-lateral rigidity of components. The bush constraint buckling-preventing support with the diamond-shaped energy dissipation unit is adopted, and thus under the action of a small earthquake, the bush constraint buckling-preventing support keeps elasticity; and under the action of a medium earthquake or a severe earthquake, the energy dissipation segment enters a yield stage, and the effect of a damper can further be achieved through the good hysteretic energy dissipation performance of the energy dissipation segment. The bush constraint buckling-preventing support with the diamond-shaped energy dissipation unit can be prefabricated and formed in a factory, the quality of the components is ensured, the workload of site operation is reduced, and energy conservation and environment protection are achieved.

The invention discloses a sleeve restraint anti-buckling support provided with staggered pyramid-shaped energy dissipation units. The sleeve restraint anti-buckling support provided with the staggered pyramid-shaped energy dissipation units is characterized in that the sleeve restraint anti-buckling support is composed of end restraint sections, energy dissipation sections and a sleeve, and the two ends are connected with beam or column components or joints in a whole through bolts, so that the purpose of increasing the resistant-lateral rigidity of a component is achieved. By the adoption of the sleeve restraint anti-buckling support provided with the staggered pyramid-shaped energy dissipation units, under the small shock action, the sleeve restraint anti-buckling support can be kept elastic; and under the medium or great shock action, the energy dissipation sections are switched to the buckling stage, and a damper effect can be achieved through the good hysteretic energy dissipation performance of the energy dissipation sections. The sleeve restraint anti-buckling support provided with the staggered pyramid-shaped energy dissipation units can be prefabricated in a factory, the quality of the component is guaranteed, the field construction workload is reduced, energy is saved, and environmental friendliness is achieved.

The invention discloses an energy dissipation self-reset anti-seismic retaining block structure for a bridge. The structure comprises a cap beam and a beam body, seismic mitigation and absorption supports are arranged on the top surface of the cap beam, the beam body is supported on the seismic mitigation and absorption supports, and retaining blocks are arranged at two ends of the cap beam respectively. A flat end of a concave steel plate with a projection portion having a through hole in the width direction is fixedly embedded into each retaining block, a hinge dowel penetrates holes of each concave steel plate and a corresponding turnover steel plate to connect the two to form a movable hinge, a projection portion of each turnover steel plate is provided with the through hole, and a flat end of each turnover steel plate is provided with a slope. A steel plate with a suspension arm end identical to the corresponding turnover steel plate in slope angle is welded to a beam body embedded part, a plurality of springs are arranged at the end of each turnover steel plate, and each turnover steel plate and the cap beam are connected together through the springs. Under seismic action, seismic energy dissipation and self reset of the beam body can be realized by the movable hinges and the springs, beam falling accidents are reduced, and seismic performance of a bridge structure is improved.

The invention discloses a sleeve buckling induction brace with a circular spiral type induction unit. The brace is composed of an end constraint section, a buckling induction section, an inner sleeve and an outer sleeve. The buckling induction section is composed of at least one circular spiral type induction unit in the axial direction of the brace. The circular spiral type induction unit is a space body formed by sequentially arranging m circular spiral type subunits annularly, and the section of the space body is in a regular m polygon shape. Each circular spiral type subunit is a space body formed by folding two triangular plates collinearly. By the adoption of the sleeve buckling induction brace with the circular spiral type induction unit, the sleeve buckling induction brace keeps elasticity under the action of small seism and enters a yield stage under the action of middle seism or major seism, and the brace can also achieve the effect of a damper due to the good hysteretic energy performance. The sleeve buckling induction brace can be prefabricated in a factory, component quality is guaranteed, workloads of on-site construction are reduced, and energy conservation and environment protection are achieved.

The invention relates to an ozonizer which has the advantages of high production efficiency, small size, good heat dissipation and anti-aging capability. The ozonizer includes a cooling plate, a high-voltage plate arranged corresponding to the cooling plate, and a passage structure arranged between the cooling plate and the high-voltage plate. The passage structure includes a first plate which is provided with an internal surface and an external surface attached to the cooling plate, a second plate which is provided with an internal surface corresponding to the internal surface of the first plate and an external surface attached to the high-voltage plate, a plurality of side plates which connect the first plate to the second plate for conveniently defining the space between the first plate and the second plate, a first opening which is formed on the one side of the side plate for introducing the air into the space, and a second opening which is formed on the other side of the side plate for guiding the air out of the space. The structure of the ozonizer can be piled to form a piling module, and further forms an ozonizer piling component. The ozonizer piling component has the advantages of high ozone production speed, high volume flow speed and small dimension.

The invention discloses an anti-back-tipping structural piece, an anti-back-tipping device and an engineering machine, and relates to the technical field of engineering machines. The technical problem that in the prior art, the damping effect is poor is solved. The anti-back-tipping structural piece comprises a seat body and damping particles, wherein the seat body is provided with a movable cavity and an embedding opening communicated with the movable cavity; the damping particles are arranged in the movable cavity in a filling manner and occupy partial space of the movable cavity, and the damping particles can dissipate vibration energy on a stretchable movement piece at least through the manners of friction of the stretchable movement piece embedded in from the embedding opening or non-elastic collision between the damping particles. The anti-back-tipping device comprises the stretchable movement piece and the anti-back-tipping structural piece provided in the invention. The engineering machine comprises an arm support, a rotary table, a propeller strut and the anti-back-tipping device provided in the invention. By means of the anti-back-tipping structural piece, the anti-back-tipping device and the engineering machine, the damping effect of the anti-back-tipping structural piece is improved.

The invention discloses a sleeve buckling induction support with oblique spiral induction units. The sleeve buckling induction support is composed of end restraining sections, a buckling induction section, an inner sleeve and an outer sleeve, wherein the buckling induction section is clamped between the inner sleeve and the outer sleeve; the inner sleeve and the outer sleeve are each connected with one end restraining section; the buckling induction section is formed by the at least one oblique spiral induction units in the axis direction of the support; each oblique spiral induction unit is a space body formed by oblique and sequential arrangement of m oblique spiral subunits, and the section of the space body is in a spiral line shape; and each oblique spiral subunit is a space body formed by collinear folding of two triangular plates located in the same plane. The sleeve buckling induction support maintains elasticity under small earthquakes, and under intermediate or large earthquakes, the buckling induction section enters the buckling stage and can achieve the effect as a damper due to the excellent retard energy consumption performance.

The invention discloses a sleeve buckling inducing support with variable-angle four-crease-type inducing units. The support comprises end constraint segments, a buckling inducing segment, an inner sleeve and an outer sleeve. The end constraint segments are located at the two ends of the buckling inducing segment, the buckling inducing segment is sandwiched between inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are connected with the end constraint segments respectively. The buckling inducing segment is formed by at least one variable-angle four-crease-type inducing units in the axial direction of the support, and each variable-angle four-crease-type inducing unit is a space body formed by sequentially arranging m identical variable-angle four-crease-type subunits in the circumferential direction, wherein the section of the space body is a regular polygon. Each variable-angle four-crease-type subunit is a space body formed by folding four trapezoidal plates in the same plane. The buckling inducing support has good hysteretic energy dissipation performance and can achieve the effect of a damper; the support can be prefabricated in a factory, the component quality is guaranteed, the workload of on-site construction is reduced, and energy conservation and environment protection are achieved.

The invention discloses a sleeve buckling induction support with lengthened-pineapple-shaped induction units. The sleeve buckling induction support is composed of end constraint sections, a buckling induction section, an inner sleeve and an outer sleeve. The buckling induction section is clamped between the inner sleeve and the outer sleeve which are each connected with one end constraint section. The buckling induction section is composed of at least one lengthened-pineapple-shaped induction unit in the axial direction of the support. Each lengthened-pineapple-shaped induction unit is a space body formed by sequentially arranging m identical lengthened-pineapple-shaped sub units in the circumferential direction, and the section of the space body is a 2m-polygon. Each lengthened-pineapple-shaped sub unit is a space body formed by folding four triangular plates and two trapezoidal plates located in the same plane. The sleeve buckling induction support keeps elasticity under the effect of a small earthquake, the buckling induction section enters a yielding stage under the effect of a medium earthquake or a large earthquake, and the effect of a damper can be achieved by means of the good hysteretic energy consumption performance of the support.

The invention discloses a buckling induction support of casing with inducing units of a groove type, comprising end constraint sections, a buckling induction section, an inner sleeve and an outer sleeve. The buckling induction section is clamped between the inner sleeve and the outer sleeve. The end constraint sections are respectively connected with the inner sleeve and the outer sleeve. The buckling induction section comprises at least one inducing unit of groove type along the axis direction of the support. The inducing unit of the groove type forms a spatial entity by m same inducing sub units of the groove type arranged along the circumferential direction. The inducing sub units of the groove type are spatial entities folded by four triangular plates arranged in a same plane. The buckling induction support has the advantages of keeping elasticity under an action of small shock, having good hysteretic energy dissipation performance when entering a yielding stage under the action of moderate and strong shock and playing the effect of a damper.