42results about How to "Effective shock protection" patented technology

The invention provides a three-dimensional face-centered cubic seismic metamaterial with a low-frequency seismic reduction characteristic. The three-dimensional face-centered cubic seismic metamaterial comprises a cubic shell with three through holes, wherein central cylinders penetrate through the through holes of the cubic shell to be coaxial and point to the shell center of the cubic shell; andthe base surfaces of the central cylinders are parallel to the outer surface of the cubic shell, the side faces of the central cylinders are connected with the inner wall of the cubic shell through fan-shaped block structures, and the cubic shell, the fan-shaped block structures and the central cylinders are made of three different materials. According to the three-dimensional face-centered cubicseismic metamaterial with the low-frequency seismic reduction characteristic, under the condition that the sizes are the same, the mass is lighter, and the low-frequency band gap characteristic can be generated, so that the controllable band gap range is achieved for seismic waves; a band gap of the three-dimensional face-centered cubic seismic metamaterial can be adjusted by adjusting the numberof the fan-shaped blocks, the height of the central cylinders, the fan-shaped angles of the fan-shaped blocks and the wall thickness of the cubic shell, and compared with a bragg scattering type seismic metamaterial, the metamaterial has the advantages of being easy to arrange and saving materials; and the three-dimensional face-centered cubic seismic metamaterial with the low-frequency seismic reduction characteristic can be used for building foundation filling, and effective seismic reduction protection is carried out on important building infrastructures.

The invention discloses a portable orthodontic dental arch wire shaping device. The bottom end side wall of a carrying case is slidably connected with a sliding plate; the bottom end side wall of thesliding plate is provided with symmetrically arranged guide grooves; fixed rods arranged symmetrically are fixed on the bottom end side wall of the carrying box; one ends of the guide rods extend to the interiors of the guide grooves to be glidingly sleeved, and the outer side walls of the guide rods are sleeved with corresponding first springs; and a shaping device body is placed above the sliding plate; the top end of the carrying box is provided with a box cover; the side wall of the top end of the carrying box is fixedly provided with first grooves which are symmetrically arranged; the side wall of one side of each first groove is provided with a second groove; and a movable plate is glidingly connected between the two side walls of the second grooves. According to the shaping device,the shaping device can be quickly placed and fixed, and carrying is facilitated; and in addition, damping protection on the shaping device can be carried out effectively, the stability and the safetyare improved, and meanwhile, taking out and placing are facilitated, and the convenience is improved.

The invention belongs to the technical field of music equipment, in particular to a portable music player for fitness. The device comprises a bearing base, a connecting base is fixedly installed at the top of the bearing base, a containing groove is formed in the top of the connecting base, grooves are formed in the inner walls of the two sides of the containing groove, two fixing columns are fixedly installed on the inner walls of the tops and the bottoms of the two grooves, and the same connecting plate is installed on the four fixing columns in a sliding mode. The device is high in practicability, the device can be moved at will by pushing the push rod; the carrying burden of people is reduced; the contact area between the device and the ground is greatly increased through the multipleconical columns, the stability is improved, the device is not easily interfered by external factors, the loudspeaker box body can be effectively protected through the damping springs and the buffer pads in the carrying process, the service life of the loudspeaker box body is prolonged, and the using effect is remarkably improved.

The invention discloses vehicle-mounted Beidou equipment with an anti-interference function, and the equipment comprises a fixed block which is provided with a first installation groove and a second installation groove, the first installation groove and the second installation groove are communicated through a through groove, the interior of the first installation groove is slidingly connected with a first installation plate, and the first installation plate is provided with a damping plate. And a Beidou terminal is installed on the damping plate, a plurality of damping pieces are arranged between the first mounting plate and the inner bottom of the first mounting groove, a second mounting plate is slidably connected into the second mounting groove, and a damping mechanism is arranged between the second mounting plate and the first mounting plate. The vehicle-mounted Beidou equipment is reasonable in structure, capable of effectively damping the Beidou terminal and the satellite receiver, capable of stably receiving signals and effectively protecting the Beidou terminal and the satellite receiver, not prone to damage, capable of conveniently adjusting the position of the satellitereceiver, easy to operate, capable of being turned over and fast, and capable of bringing convenience to a user.

The invention discloses a height-adjustable smash-proof water storage type electrical cabinet, which comprises a box body, a heat dissipation structure and a water circulation cooling device, whereina height adjusting device and supporting legs are arranged at the bottom of the box body, and a smash-proof device is arranged at the top of the box body; the heat dissipation structure comprises an air inlet formed in the side wall of the box body and an air outlet formed in the top of the box body; and the water circulation cooling device comprises a heat dissipation bent pipe arranged in the box body, the heat dissipation bent pipe is connected with water storage tanks arranged on the two sides of the box body through water pipes, and water pumps are arranged on the water pipes. The water circulation cooling device cools the interior of the electrical cabinet, so that the heat dissipation effect of the electrical cabinet is good; and the shockproof device not only can effectively support the electrical cabinet, but also can perform effective shock absorption protection on the electrical cabinet, and can reduce the impact force generated when a high-altitude falling object impacts asun visor by utilizing the buffer effect of springs.

The invention belongs to the technical field of welding equipment, and particularly discloses convenient-to-clean automatic welding equipment with a protective structure. The convenient-to-clean automatic welding equipment comprises a shell, a fixing base and a cleaning tank, wherein a sliding plate is arranged on the inner wall of the shell, a through hole is formed in the top end of the slidingplate, a protective mirror is arranged inside the sliding plate, a handle is connected to the outer wall of the protective mirror, the fixing base is arranged inside the shell, a scrap collecting drawer is arranged inside the fixing base, a pneumatic rod is arranged at the top of the fixing base, a clamping base is arranged at the end part of the pneumatic rod, a screw rod penetrates through the interior of the clamping base, and an abutting plate is arranged at the end part of the screw rod. According to the convenient-to-clean automatic welding equipment, the personal safety and eyes of theoperation user are conveniently protected, the user can conveniently clamp and move welding parts, the user can conveniently conduct vibration reducing protection on a welding device, the user can conveniently clean a welding head, and the user can conveniently collect welding scraps.

The invention discloses a firework packaging device with a protection mechanism. The firework packaging device comprises side folding plates, a waterproof coating and a box body, wherein the two sidesof the box body are fixedly connected with the side folding plates, and the two ends of the box body are fixedly connected with main folding plates; protection structures are arranged at the four corners of the box body; and a damping structure is arranged at the bottom end of the inner part of the box body. Supporting legs are arranged at the four corners of the bottom end of the box body, and supporting rods are inserted between the supporting legs and distributed at the bottom end of the box body in a crossed supporting mode, so that the phenomenon that fireworks in the box body fall off due to the fact that the bottom end of the box body is stressed and deformed can be prevented. Moreover, a cushion layer is arranged on the inner wall of the box body, so that the fireworks can be wrapped to prevent from shaking in the box body during carrying. By means of the arrangement, the box body is not prone to being damaged in the using process, the fireworks in the box body are not prone to falling off, and the firework protection effect is better.

The invention discloses novel-structure multifunctional measuring equipment for road and bridge construction, which comprises a main body, dual-purpose mounting mechanisms, turning type protection mechanisms, a subarea mounting frame mechanism and a professional auxiliary mounting mechanism, the dual-purpose mounting mechanisms are arranged on the two sides of the lower part of the main body, and the turning type protection mechanisms are arranged on the upper part and the side edge of the main body; a partition racking mechanism is arranged on one side of the upper portion of the main body, a professional auxiliary mounting mechanism is arranged on one side of the partition racking mechanism, and the dual-purpose mounting mechanism comprises a lower mounting plate, an elastic mounting frame, a connecting mounting plate, an elastic slow mounting wheel, a bottom mounting inner threaded cylinder, a surface mounting screw piece and a soil leveling plate. According to the novel-structure multifunctional measuring equipment for road and bridge construction, due to the existence of the rotary threaded mounting piece above the internal mounting rod, a user can perform alignment assembly on a laser swinger or a small-sized measuring tool by utilizing the rotating property and the screwing property of the rotary threaded mounting piece, so that the user can conveniently perform laser swinger in bridge construction operation; however, if the height is limited, many limitations can be caused.