7results about How to "Structural Strength Effect" patented technology

The utility model relates to aviation equipment technical field, concretely relates to a kind of helicopter satellite communication equipment mounting bracket: including pod assembly, cabinet assembly and airborne antenna assembly, airborne antenna assembly includes airborne antenna body, antenna support and antenna mounting plate, since antenna support borrows the bolt embedded hole position of the cable drop support of helicopter and is fixed at the top platform position of fuselage left side, airborne antenna body is installed in the above of antenna support by antenna mounting plate, and pod borrows the platen nut of fuselage radar cover bottom and is fixed, cabinet assembly is installed on the front seat guide rail of helicopter simultaneously, all connecting points are fixed using the bolt hole or mounting hole of helicopter using this technical scheme, need not additional trepanning or refitting, under the premise of guaranteeing structural strength, make satellite communication equipment installation efficiency improve, and fuselage is not any permanent change after dismantling, will not cause the influence to the overall structural strength of helicopter.

The utility model relates to aviation equipment technical field, concretely relates to a support for adding the support for adding the security communication equipment to the helicopter: including airborne antenna subassembly, pod subassembly and rack subassembly, airborne antenna subassembly utilizes the existing structure of fuselage, and the fixed point position is used to the line cutter support, foot rest support, door frame support and front block support, and the installation frame is directly connected with the original hole position of helicopter through bolt, does not need the additional trepanning or structural modification, and the fuselage integrity is completely reserved, the pod subassembly is inlaid with the original landing gear foot rest structure through the hoop, and the rack subassembly is then multiplex seat connecting piece mounting point, all connecting points adopt the bolt hole or hinge structure of helicopter in the prior art, do not need the additional trepanning or modification, under the premise of guaranteeing the structural strength, make the security communication equipment installation efficiency improve, and the fuselage has no any permanent change after dismantling, and the overall structural strength of helicopter will not be influenced.

The present invention belongs to the field of supporting equipment for tunnel and pipe well excavation equipment, and particularly relates to a pipe joint anti-retreat device, which comprises an anti-retreat platform, which comprises a fixed part and a rotating part, and the rotating part is provided with more than two latches for inserting into grouting holes of the pipe joint to be stopped and cooperating with each other to hold the pipe joint, and each of the latches extends along the radial direction of the rotating part; or, the anti-retreat platform has only a fixed part, and a latch group is provided on the fixed part, and the number and relative position of the latch groups meet the requirement that when the pipe joint to be stopped is arranged at different angles, at least one latch of the latch group can be directly opposite to the grouting hole of the pipe joint to be stopped, and because the latch is inserted into the grouting hole of the pipe joint, no radial force is applied to the pipe joint, thereby not affecting the structural strength of the pipe joint, and at the same time, because the pipe joint generally has a grouting hole, the pipe joint anti-retreat device has higher versatility.

The utility model relates to the technical field of anti-seismic supports, in particular to a profile steel mounting structure for an anti-seismic support, which specifically comprises a profile steel body, a connecting base and a bolt assembly, the profile steel body comprises a first web and a first flange, a plurality of first pentagram holes are formed in the first flange along the length direction, and the bolt assembly comprises bolts and nuts. The bolt comprises a screw part and a pentagram part, the connecting base comprises a U-shaped connecting piece, a pentagram combination hole is formed in the U-shaped connecting piece, and at least two clamping structures capable of being in sliding clamping fit with the pentagram part are formed in the pentagram combination hole. In the installation process, according to the actual installation error, the pentagram part of the bolt can select the clamping structure at the proper position in the pentagram combination hole to be in sliding clamping connection with the first pentagram hole, fine adjustment of the profile steel installation position is achieved, the connection problem caused by the installation error is effectively solved, additional drilling is not needed, the construction cost is reduced, the construction time is shortened, and the construction efficiency is improved. And meanwhile, the structural strength of the profile steel is not influenced.

The utility model discloses a kind of bag folding equipment, including bag folding assembly and limiting component, bag folding assembly has bag folding space, and including at least one bag folding component in the first direction located bag folding space side, limiting component includes limiting component in the second direction located both sides of bag folding space, in the second direction to the packaging bag in bag folding space is limited, prevent packaging bag when folding along first direction, second direction deviation or shift occurs, ensure that packaging bag under the action of bag folding component always along first direction neat folding, the structural strength of packaging bag after folding will not be greatly influenced, and through the bag folding posture of each packaging bag folded by this bag folding equipment is basically consistent, multiple packaging bags are stacked and stored when can be closely fitted, flat alignment, will not appear when stacking high and low staggered, skew deviation etc. Problem, greatly improve the utilization of storage space.

The utility model discloses a vertical axis dispersed breeze power generation cone type steel frame beam column welding auxiliary tool which comprises a first connecting piece, a second connecting piece, a first positioning rod, a second positioning rod and a supporting positioning mechanism. A first penetrating groove is formed in the bottom end of the first connecting piece, and the first connecting piece covers the upper end of a welded inclined supporting rod through the first penetrating groove; the upper end of the first connecting piece is connected with a first positioning rod and a second positioning rod through pin shafts, the first positioning rod and the second positioning rod are arranged side by side in the length direction of the first connecting piece, and the first positioning rod and the second positioning rod are equal in length and are parallel. The top ends of the first positioning rod and the second positioning rod are connected with the second connecting piece through pin shafts so that the first connecting piece, the second connecting piece, the first positioning rod and the second positioning rod can form a parallelogram structure. The welding device is simple in structure, convenient to use and capable of improving the welding efficiency and quality of the vertical axis dispersed breeze power generation cone type steel frame beam column.

The utility model relates to the technical field of foundation pit dewatering, in particular to a deep and large foundation pit dewatering device which comprises a water collecting main pipe and two water suction pumps, the input ends and the output ends of the water suction pumps are fixed and communicate with water suction pipes and water drainage pipes correspondingly, and the front end of the water collecting main pipe is fixed and communicates with a plurality of hoses. And a winding assembly is arranged on the outer surface of the hose. According to the dewatering device for the deep and large foundation pit, by arranging the winding assembly, the hose can be collected according to the needed distance length, so that the distance between the foundation pit and the water collecting main pipe can be prolonged, and the situation that drained water is fused with underground water near the foundation pit, and consequently the dewatering effect is affected is avoided; and by arranging a filtering assembly, silt and water in the foundation pit can be effectively prevented from being pumped out together by a water pump, the water flow amount of the silt in the foundation pit is reduced, it is guaranteed that the internal structural strength of the foundation pit is not affected, and the device is convenient to disassemble and replace.