42results about How to "Does not affect structural safety" patented technology

The invention relates to a wind turbine generator blade detecting technique, and discloses a wind turbine generator blade on-line detecting method and a wind turbine generator blade on-line detecting device. The wind turbine generator blade on-line detecting method provided by the invention can be used for demodulating the blade amplitude of oscillation data from reflective light based on a laser radar detecting technique by adopting lasers to irradiate wind turbine generator blades and utilizing the modulation effect to reflective lasers by blade oscillation. The wind turbine generator blade on-line detecting device provided by the invention comprises a laser emitting unit, a laser receiving unit, and a signal processing and controlling unit. According to the invention, continuous or quasi-continuous lasers are projected to the wind turbine generator blades, and any oscillation of blades can generate a modulation effect to lasers projected to the blades, and the important physical parameter-amplitude of oscillation can be collected by receiving and demodulating lasers reflected by the blades. The wind turbine generator blade on-line detecting method and the detecting device provided by the invention do not need to modify the blades, cannot affect the structure safety of wind turbine generator blades, are convenient to use, and are wide in application.

The invention discloses a vibration arch breaking device and a using method thereof, and belongs to the field of port and pier bulk cargo loading and unloading. The vibration arch breaking device comprises an arch breaking hopper, a vibration motor and a spring and further comprises an arch breaking structure and a frame structure. The arch breaking hopper comprises a hopper body and a hopper outlet. The hopper outlet is formed in the bottom of the hopper body, the arch breaking structure is arranged inside the hopper body, the upper end of the arch breaking structure is located in a bulk cargo hopper, the top end outside the hopper body is connected with the frame structure, the vibration motor is installed on the frame structure, the frame structure is connected with a fixing frame through the spring, the arch breaking structure is composed of a supporting rod I, supporting rods II, a triangular plate I and a triangular plate II, and the supporting rods II are perpendicularly welded to the two sides of the middle point in the length direction of the supporting rod I respectively. The problem of arching and blocking caused by viscous cargos is solved, and maintenance and replacement are convenient due to the combined structure.

The invention discloses a large on-water floating structure which comprises multiple lower-portion floating bodies, upper-portion structures and middle connecting structures. Each lower-portion floating body comprises multiple dispersedly arranged strip-shaped floating bodies, the floating bodies are spaced for a certain distance, the sum of water discharging volumes of the floating bodies is greater than that of the floating structure in a whole full-load state. Each middle connecting structure at least comprises multiple connecting structures in the first direction, the first direction is intersected with a horizontal plane, the single strip-shaped floating bodies corresponding to the connecting structures in the first direction are connected with three or more mutually spaced structures, and the cross section widths of the middle connecting structures in the horizontal direction are smaller than the widths of the corresponding strip-shaped floating bodies. The on-water floating structure is wholly in an ultra-flat shape. The large on-water floating structure has a wave height nonlinear response characteristic, can reduce wave load, can achieve ultra large scale, has excellent wave resistance, has structural integrity and stable height redundancy and has the characteristics of no disassembly and no capsizing and sinking under the accident conditions such as collision, reef striking and stranding, and the safety of the floating structure and the life safety of persons on the structure can be ensured.

The invention discloses an environment-friendly street lamp having the function of introducing sunlight to underground. The environment-friendly street lamp having the function of introducing the sunlight to underground comprises a lamp top, light collecting devices and a light-catching cover and is characterized in that the lower end of the lamp top is fixedly provided with two symmetrically arranged supporting rods, reflectors are arranged on the light collecting devices, first connection blocks are fixed to the lower ends of the reflectors, fixing rods are hinged to the lower ends of the first connection blocks, the lower ends of the fixing rods are fixed to sliding plates, a push rod is fixed to the left end of each sliding plate, the left end of each push rod is fixed to an air cylinder, the left side of the upper end of each sliding plate is fixedly provided with a third connection block, an air cylinder telescopic rod is hinged to the upper end of each third connection block, the upper end of each air cylinder telescopic rod is hinged to a second connection block, the upper end of each second connection block is fixed to the corresponding reflector, the lower end of the light-catching cover communicates with a light guide pipe, and the lower end of the light guide pipe is provided with a florescent lamp. The environment-friendly street lamp having the function of introducing the sunlight to underground is uniform in light spreading, large in illuminating area and environmentally friendly, saves energy, meets the current energy conservation and emission reduction theme, avoids influencing the structure safety of a building and has a good light collecting effect.

The invention provides a radar wave-based nondestructive test method for internal defects of wooden pillars of an antique building. The method comprises the following steps: putting a radar wave-based detection device on an initial detection point of a first unit region, detecting all unit regions in a group upwards one by one from the unit detection region, performing once complete circular scanning during detection of each unit region, recording detection data in real time, gathering all the collected detection data, processing and analyzing, generating internal detection images of the wooden pillars in the detection region of the group, and judging whether the wooden pillars have internal defects or not according to the generated images; if all the unit regions do not have internal defects, directly determining the nature; if the unit regions have internal defects, further judging whether the detected internal defects are completely displayed or not, and performing out-diffusion subsequent detection on the internal defects which are not completely displayed until the internal defects are completely displayed; finally obtaining a qualitative detection result. The method is capable of rapidly and accurately detecting whether defects of holes, purification and the like exist in the wooden pillars of the antique building or not in site and judging the positions and sizes of the defects.

The invention provides an anti-seepage type assembly type ecological slope protection method for an irrigation water conveying canal. The anti-seepage type assembly type ecological slope protection method includes the following steps that (1) when the concrete irrigation water conveying canal (1), or a U-shaped fracture surface, or a trapezoid-shaped fracture surface, or a rectangular fracture surface or a compound fracture surface is built, a cuboid hole groove is reserved; (2) anti-seepage type ecological boxes (2) which are cultured in a garden house and with healthily growing plants are transferred to the cuboid hole groove in batches; (3) the lower portions of edges of the peripheries of the upper surfaces of the ecological boxes are each provided with a circle of rubber anti-seepage spacers (10) in a cushioned mode; (4) expansion anchor bolts (8) are arranged in the hole drilled in the step (1), and screw caps (9) are tightly screwed to fix the anchor bolts (8). The anti-seepage type assembly type ecological slope protection method has the advantages that the irrigation water utilization rate can be increased without affecting the safety of a slope protection structure, and overall collapse of the canal is avoided; a habitat can be provided for aquatic animals; aquatic plants are made to cover slope protection concrete to the maximum degree to form a green corridor, and the self cleaning capacity of the canal is improved; an original irrigation water conveying canal is fully utilized, and the anti-seepage and slope protection purposes are achieved.

The invention provides a water well structure for foundation pit dewatering and a construction method thereof. The water well structure for foundation pit dewatering comprises a water well, water passing steel sleeves penetrating through the side wall of the water well are installed on the water well, and permeable steel plates are fixed to the outer side of the water well through steel bars. The outer sides of the water passing steel sleeves are covered with the permeable steel plates, and a closed type structure is formed between the permeable steel plates and the outer wall of the water well. Permeable holes are formed in the permeable steel plates, and earthwork fiber cloth, cobblestone, earthwork fiber cloth and a gravel filtering layer are sequentially paved on the outer sides of the permeable steel plates. According to the water well structure for foundation pit dewatering and the construction method thereof, the problems that an existing regular construction site drainage method has certain limitation and long in construction period, construction of a site with the surrounding site being covered by adjacent buildings is inconvenient, and structure safety of the adjacent buildings is influenced are solved. The invention belongs to the field of drainage construction.

The invention relates to a deepwater oil and gas well casing bypass annulus pressure releasing device and method, the device comprises an annular structure and a bypass pipe, the annular structure is arranged on an inner layer casing in a sleeving mode and used for centralizing the inner layer casing; a plurality of pressure relief pipelines are arranged in the annular structure, a plurality of pressure relief holes are formed in the outer side wall of the annular structure, and the pressure relief pipelines are communicated with the pressure relief holes; the bypass pipes are arranged in the circumferential direction of the inner-layer sleeve, and the lower ends of the bypass pipes extend into the annular structure and communicate with the pressure relief pipeline. On the premise that the safety and integrity of the casing pipe structure are not affected, the bypass pipe is additionally arranged and communicated with the stratum to release the annular pressure, the problem that the annular pressure cannot be released due to blockage of a pressure relief channel is solved, and repeated use can be achieved.

The invention discloses a light outer enclosure wall body and an installation method. The wall body comprises a light board (1) serving as an outer wall body main body, a keel (2) arranged on a building wall body, a fixing piece (6) arranged on the light board (1), and a rod supporting device arranged on the keel (2) and used for being connected with the fixing piece (6). According to the light outer enclosure wall body, the light board (1) and the keel (2) are used for achieving main body installation of the external wall body, the light board (1) and the keel (2) are detachably installed through the fixing piece (6) and the rod supporting device, and therefore assembly type light external wall board installation is achieved.

The invention provides a hybrid structure prefabricated toilet for a prefabricated building and a manufacturing method thereof. The toilet comprises a wall unit, a sewage main riser, and a bottom plate unit fixedly connected with a steel beam or a superposed beam. During operation, the bottom plate unit is fixedly connected with the steel beam or the superposed beam through connecting pieces I. The bottom plate unit is connected with a floor through cast-in-place nodes. A wallboard is fixedly connected with the bottom plate unit through the matching of a connecting plate II and a correspondingconnecting plate I. The sewage main riser penetrates through and is fixedly connected to the bottom plate unit. The manufacturing method of the toilet includes the steps of scheme design, prefabricating the bottom plate unit, prefabricating the wallboard, transportation to the site, assembling and pouring floors and the like. The toilet can reduce construction difficulties caused by weather changes, is convenient and quick to install, and has good anti-leakage performance.

The invention discloses a refrigerator seed storage box and a manufacturing method thereof. The storage box is composed of a plastic box, an aluminum partition plate and tags; the plastic box has the length of 28 cm, width of 14 cm and depth of 11 cm and achieves leakproofness; the aluminum partition plate is composed of five long sheets and nine short sheets, the long sheets and the short sheets are buckled together through clamping grooves formed in the middle-lower portions to form 32 small grids with the specification of 30*30 mm, and 32 30-ml glass seed storage bottles can be contained; the tags are made of AW5209 coated paper and comprise the circular box top tag and the side wall square tag, and a refrigerator serial number and a storage rack position serial number which correspond to the storage box are printed on the tags. The refrigerator seed storage box has the advantages of being simple in structure, capable of being randomly assembled, high in low temperature resistance and drying resistance, clear in identification and the like, the 30-ml glass seed storage bottles with the small volume can be orderly and stably contained in the storage box and then put into a refrigerator for long-stem storage, therefore, management on the 30-ml glass seed storage bottles is convenient, and the condition that the storage life of seeds is affected due to the fact that the seeds absorb moisture in the refrigerator storing process can be prevented.

The invention provides a post-cast strip of a basement floor and relates to the technical field of building construction. The post-cast strip of the basement floor comprises a concrete cushion, a first waterproof roll layer, a fine aggregate concrete layer and a base plate, wherein the concrete cushion, the first waterproof roll layer, the fine aggregate concrete layer and the base plate are located on the two sides of a post-cast strip area and arranged in sequence from bottom to top. A groove is formed in the portion, below the post-cast strip area, of the concrete cushion. A second waterproof roll layer is arranged between the concrete cushion and the first waterproof roll layer. The second waterproof roll layer is arranged in the groove and extends towards the two sides of the groove. Upper arches are arranged in the middle of the first waterproof roll layer and the middle of the second waterproof roll layer. Gaps are formed between the upper arches and the concrete cushion. A first yellow sand layer is arranged on the portion, located in the groove, of the first waterproof roll layer. A second yellow sand layer is arranged on the first yellow sand layer. According to the post-cast strip of the basement floor, the two middle waterproof layers and the two middle arches are adopted, the effect that the waterproof requirement is met is guaranteed through the two waterproof layers, and the gaps are reserved through the arches so that movement clearances can be reserved for rolls. Landfilling is conducted through yellow sand by two times, the waste removal work is low, and the structural safety and waterproof performance of the post-cast strip are not affected.

The invention relates to the technical field of intelligent window sashes, in particular to an electric window opener. The opener comprises an upper cover plate, a shell, a multi-connecting-rod structure and a circuit board, wherein the upper cover plate and the shell are arranged in a locked and attached mode, a power mechanism used for providing power for pushing a window sash frame is arrangedin the shell, a stroke groove is formed in one side of the shell, the power mechanism is rigidly or flexibly connected with the multi-connecting-rod structure through an electromagnetic clutch, the multi-connecting-rod structure penetrates through the stroke groove, the tail end of the multi-connecting-rod structure is provided with a mechanism which slides relative to the window sash frame when the window sash frame is pushed, and the circuit board is arranged in the shell and is in control connection with the power mechanism and the electromagnetic clutch. According to the opener, the openeris of a multi-connecting-rod structure, is provided with the window sash inward-opening and inward-falling modes at the same time, and can not affect the function of hardware on a window during use;and when the power failure or the mechanical failure of the window opener occurs, a user can manually open and close the window, and the structural safety of the window cannot be affected.

The invention discloses a local chord support combined net rack structure which comprises a net rack and a plane truss. A grid at the midspan part of the net rack is replaced by a plane truss, an upper chord of the plane truss is connected with net rack upper chords of the net racks on the two sides, and a lower chord of the plane truss is connected with net rack lower chords of the net racks on the two sides; and the lower chord member is a stretchable chord member. The local chord support combined grid structure has the advantages of being high in roof modeling adaptability, small in indoor space occupation, small in thrust on the supporting columns and the like.

The invention provides a method and a system for measuring a cable force of a stainless steel cable, and relates to the technical field of stress measurement. The method comprises the steps of: replacing at least one stainless steel wire forming a prestressed cable with a carbon steel wire with magnetic conductivity; and arranging a magnetic flux sensor on the outer side of the detected prestressed steel cable for measuring the corresponding magnetic field physical quantity so as to obtain a cable force value of the prestressed steel cable. The system comprises the detected prestressed steel cable and the magnetic flux sensor, wherein the prestressed steel cable contains the carbon steel wire with magnetic conductivity, and the magnetic flux sensor is arranged on the outer side of the detected prestressed steel cable and used for measuring the corresponding magnetic field physical quantity. The method and the system solve the problem of application of the magnetic flux method in the stainless steel cable, greatly optimize the measurement problem of the stainless steel cable, and greatly reduce the cable force measurement cost of the stainless steel cable.

The invention discloses an external wall device based on a light external wall panel and an installation method. The external wall device comprises the light external wall panel (1) used as an external wall component, a side frame arranged on a building wall body, a frame (2) arranged on the light external wall panel (1), and an end component arranged between the frame (2) and the side frame. Through the side frame and the frame (2), the light external wall panel (1) is installed on the building wall body, and through the end component, the position of the light external wall panel (1) can be adjusted in the single direction, and therefore the installation strength of the external wall is improved.

The invention discloses a construction method of concrete slope protection with green plant ecological bags. The construction method comprises the following steps of (1) trimming a bank slope; (2) constructing a bank slope cushion layer, and then binding a lower-layer reinforcing mesh and a surface-layer reinforcing mesh; (3) mounting and fixing each ecological bag unit according to a design position; (4) pouring concrete; and (5) filling the ecological bags with planting soil, and planting green plants to finish construction. The mode that the ecological bags are embedded in the concrete slope protection plate is adopted, the improvement that a stressed reinforcing mesh does not need to be disconnected during installation is achieved, the slope protection reinforcement area is not affected, in other words, stress concentration points cannot be generated due to the fact that the ecological bags are embedded in an original concrete cast-in-place slope protection plate, and therefore, ornamental plants are planted in the ecological bags for slope protection greening, and the structural safety and the drainage and diversion functions of the concrete slope protection are not affected; during construction, the use amount of concrete can be reduced by 2-8%, so that the construction cost is reduced; and the ecological bag is relatively light in self weight and has a certain shape, a formwork does not need to be additionally arranged during concrete slope protection pouring, and construction is simplified.