20results about How to "Reduce shock damage" patented technology

The invention discloses a prefabricated cabin body shell strength testing device, which comprises an operation table, the operation table is directly arranged on the ground, limiting mechanisms are symmetrically arranged on the left side and the right side of the upper part of the operation table, and each limiting mechanism comprises a rubber plate, a limiting plate, a pushing shaft, a spring, a supporting block, a rotating rod, an electric telescopic rod and a fixing plate. Rubber plates are symmetrically arranged on the left side and the right side of the upper portion of the operation table, and limiting plates are fixedly installed on the outer sides of the rubber plates. According to the strength testing device for the prefabricated cabin body shell, the limiting mechanism is arranged, so that the cabin body shell cannot deviate in the strength testing process, the testing precision can be greatly improved, meanwhile, the cleaning mechanism is arranged, the operation table is cleaned immediately after the cabin body shell is tested, the operation table is kept clean and tidy, and the working efficiency is improved. In addition, a whole-process monitoring mechanism is arranged, a sensor is used for carrying out whole-process monitoring and video recording on the strength testing process of the cabin shell, and the detection process and result are accurately known.

The utility model provides a pavement pit slot milling device, and belongs to the technical field of construction engineering, the pavement pit slot milling device specifically comprises a frame and a milling mechanism, the milling mechanism comprises an adjusting assembly, the adjusting assembly comprises an adjusting rod, a plurality of limiting rods and a limiting ring, the adjusting rod is slidably connected to a sliding groove, and the limiting rings are arranged on the limiting rods. The multiple limiting rods are evenly distributed in the length direction of the adjusting rod, the number of the limiting rings is the same as that of the limiting rods, the limiting rings are arranged on an outer barrel of an inner cavity of the polishing roller and located on one side of the mounting hole, the tool apron is arranged in the mounting hole and located on the outer side of an outer barrel of the polishing roller, and the limiting rods sequentially penetrate through through holes in the tool apron and the limiting rings. A plurality of receding holes are evenly distributed in the connecting ring and correspond to the adjusting rods in position, and a limiting handle is arranged at one end of each adjusting rod and detachably connected with the connecting ring. By means of the treatment scheme, the milling replacement work efficiency is improved.

The utility model relates to the technical field of fire-fighting boots, in particular to a high-comfort fire-fighting protective boot for firefighters, which comprises a boot sole, a toe cap, a vamp, a heel and a boot leg which are integrally arranged, a waterproof sock is jointly attached to the inner surface layers of the toe cap, the vamp and the boot leg, and the boot leg comprises a leg body, a tibia protective layer, an ankle protective layer and an ankle joint bending layer. By means of the arrangement of the waterproof socks on the inner surface layers of the boot vamps and the boot legs, it is guaranteed that when a fireman works in the environments such as wading, the feet cannot be soaked by water, and the waterproof socks further have the functions of high breathability, chemical protection and blood transmission and viral pathogen resistance; meanwhile, the tibia protection layer, the ankle protection layer and the ankle joint bending layer are arranged, and the design fully considers the protection requirements of different parts of the feet of the firefighter when the firefighter executes a task, so that the firefighter can quickly respond in an emergency, and the timeliness and the accuracy of rescue actions are improved.

The utility model belongs to battery technical field discloses a kind of lead-acid battery package, lead-acid battery package includes shell, support, battery, temperature control piece and waterproof air-permeable piece, shell has installation cavity, installation cavity has air hole, support is fixed in installation cavity by connecting piece, multiple installation grooves are set on support, battery is multiple, and is installed in installation groove one by one, temperature control piece is installed on support, and for heating battery, waterproof air-permeable piece is installed in shell and seals air hole. The lead-acid battery package can heat battery, and waterproof and shock resistance is good, and service life is longer.

The utility model discloses a monitoring alarm device for tower crane construction and a protection structure thereof, a mainboard of the monitoring alarm device is arranged in a box body, and the protection structure comprises a shell with an upper opening; the rubber seat is arranged in the upper opening of the shell in a sleeved mode, the side wall of the rubber seat abuts against or is fixedly connected with the inner wall of the shell, an upper groove used for containing the bottom or the lower portion of the box body is formed in the upper portion of the rubber seat, and the upper groove is coaxial with the upper opening of the shell; and the damper is arranged between the bottom of the rubber seat and the bottom wall of the shell and is used for supporting the bottom of the rubber seat. The monitoring and alarming device can be installed on the tower body of the tower crane, outdoor constructors can receive alarms more effectively, and the monitoring and alarming device installed on the tower body of the tower crane can be protected in a damping mode.

The invention provides an engineering machinery transfer device which comprises a flat plate, hydraulic pulley devices and supporting legs, the hydraulic pulley devices and the supporting legs are installed at the lower end of the flat plate, the hydraulic pulley devices are symmetrically installed relative to the center of the flat plate, the supporting legs are installed at the outer end of the flat plate, fixing holes are formed in the flat plate, and engineering machinery is fixedly connected with the fixing holes through bolts. The damping device comprises a damping seat, a spring and a spring plate are arranged in the damping seat, the spring is installed at the upper end of the spring plate, the lower end of the spring plate is fixedly connected with a supporting rod, and the supporting rod is fixedly connected with the supporting plate. The fixing seat is provided with a stop block and an inserting rod, the stop block stops the supporting rod from moving, the inserting rod is inserted into the inserting groove to fix the supporting rod, and a hanging ring is arranged on the inserting rod to facilitate taking up of the inserting rod.

The utility model belongs to the field of building construction, and particularly relates to a height-adjustable speed bump for road safety, which comprises an equipment base, a mounting groove formed in the equipment base, a lifting unit arranged in the mounting groove and a speed bump unit connected with the lifting unit, according to the height-adjustable road safety deceleration strip, the flexible height adjusting function is added, the passing requirements of different speed limiting road sections or emergency vehicles are met, meanwhile, the damping unit is matched, the vehicle impact force is effectively absorbed, and vibration damage to a vehicle body is reduced.

The invention discloses a safe and convenient dismantling construction method for a latticed column. The method comprises the steps that two hanging rings are installed on a floor slab above one side of a section of latticed column; a lifting device is installed on one hanging ring close to one section of latticed column, and a sling of the lifting device is connected to the upper end of one section of latticed column; obliquely cutting the upper end of one section of latticed column; the sling is tensioned, so that the sling of the lifting device is stressed and tied to the upper end of one section of the cut latticed column; the lower end of one section of latticed column is horizontally cut; the other lifting device is installed on the other hanging ring, and a sling of the other lifting device is stressed and tied to the lower end of the cut latticed column; lowering a sling of the lifting device; the sling of the other lifting device is shrunk, so that one section of the cut latticed column is horizontally arranged; the slings of the two lifting devices are lowered so that one section of latticed column can be placed on the next floor in a lying posture. The problem that a traditional latticed column dismantling method has large vibration influence on a main body structure is solved.

The utility model relates to the technical field of check valve devices, in particular to a plane soft sealing check valve which comprises a valve body. A valve cover is arranged at the top end of the valve body, a pressing rod is arranged in the valve body, a valve clack is arranged at the bottom end of the pressing rod, springs sleeve the outer side of the bottom end and the outer side of the middle of the pressing rod, a sealing ring is arranged at the bottom end of the valve clack, a sealing piece is arranged at the bottom end of the sealing ring, and the middle of the sealing ring and the middle of the sealing piece are fixedly connected with the valve clack through a pin shaft and a nut. The two spring structures are arranged and arranged on the pressing rod in a sleeving mode, the two ends of the spring can make contact with the two ends of the spring through the pressing connection effect of the pressing rod, vibration generated by the spring can be adsorbed and then released through structural deformation, and vibration damage to the valve deck and the valve body is reduced; therefore, the crimping effect is not affected.

The utility model provides a vegetable weeder, belongs to weeder equipment technical field, the vegetable weeder includes shell, motor, shaft and weeding blade group, the shell is used for placing motor, shaft and weeding blade group, the motor is placed on the inside one side of shell, the output shaft is fixed connection with shaft, the inside of shaft is hollow structure, and the shaft is equipped with the weeding blade group. The side wall is fixedly connected with the weeding blade group, the weeding blade group is used for removing weeds, and a plurality of water outlet holes are formed in the center of the weeding blade group on the side wall of the rotating shaft and used for removing soil impurities adhered to the weeding blade group; one side of the rotating shaft is fixedly connected with the motor, the other side of the rotating shaft is rotationally connected with the water inlet, and the rotating shaft is rotationally connected with the water inlet through a rotating joint; the vegetable weeding machine blade can solve the problem that the blade is not easy to clean after being used, and is convenient to clean.

The handheld pneumatic rock drill comprises a rock drill body and a handheld handle installed at the upper end of the rock drill body, the handheld handle comprises a left handle body and a right handle body, the inner side ends of the left handle body and the right handle body are hinged to an installation base formed in the middle of the upper end of the rock drill body, and the middle sections of the left handle body and the right handle body are connected with the rock drill body through elastic pieces respectively. Under the limiting action of the elastic piece, the left handle and the right handle can turn downwards in a limited mode in the vertical plane around the hinged shaft. In the working state, the handheld handle held by an operator can overturn in a reciprocating mode in the vertical plane around the hinge shaft, so that the buffering effect is achieved, the impact force of the rock drill body can be prevented from directly acting on the human body, the labor intensity borne by the operator is effectively relieved, and the probability of fatigue of the two hands and the two arms of the operator and vibration damage is reduced.

The invention relates to the technical field of satellite terminals, and discloses an anti-resonance vehicle-mounted Beidou satellite positioning terminal, which comprises a shell, a heat dissipation mechanism and a positioning mechanism, a plurality of air inlet holes are formed in the front surface of the shell, a plurality of air outlet holes are formed in the back surface of the shell, and the heat dissipation mechanism comprises a reciprocating screw rotationally mounted on the shell, the tail end of the reciprocating screw rod extends into the shell, two cleaning plates are fixedly installed on the outer wall of the reciprocating screw rod, the two cleaning plates make contact with the shell, a plurality of transmission fan blades are fixedly installed on the outer wall of the reciprocating screw rod, and the reciprocating screw rod is sleeved with an internal thread push block in a threaded mode; and two limiting sliding rods are fixedly mounted on the outer wall of the internal thread push block. After the hollow [-shaped cylinder is exposed out of the exhaust grooves in the [-shaped circular plate, gas in the hollow cylinder can be exhausted, heat generated by the positioning device can be taken away in the gas exhausting process, and therefore the positioning device is cooled.

The utility model provides a rail car bottom plate bracket which comprises a chassis assembly, a buffering assembly is arranged on the chassis assembly, and a bracket assembly is arranged on the upper side of the chassis assembly through the buffering assembly. Compared with the prior art, the chassis assembly and the bracket assembly which are made of aluminum alloy materials are arranged, the self weight of the vehicle can be effectively reduced, the carrying efficiency and the energy-saving performance are improved, meanwhile, wheel track abrasion is reduced, the rigidity and the bending resistance and torsion resistance of the bracket are remarkably improved through the cross-shaped reinforcing rib structure, and the service life of the vehicle is prolonged. The car body structure is not prone to deformation when bearing dynamic loads, the overall stability and safety are enhanced, impact force generated in the cargo loading and unloading process can be effectively absorbed and dispersed in the cargo loading and unloading process by arranging the buffering assembly, vibration damage to the car body structure and cargoes is reduced, and the transportation safety is improved; and meanwhile, hard collision between the goods and the bracket and between the goods and the external bearing surface is reduced, and displacement or damage of the goods due to sudden stress is avoided.

The utility model discloses a handheld oscilloscope, which comprises an oscilloscope body and a bottom shell, and the outer wall of the oscilloscope body is provided with two placing grooves which are symmetrically distributed; the clamping plate is U-shaped, so that the oscilloscope body and the bottom shell are fixed together, the effect of convenient fixation is achieved, then the top frame is inserted into the sliding groove, so that the top frame and the bottom shell are connected in a sliding mode, one end of the sliding groove is arranged to be a closed end, and the insertion block is inserted into the other end of the sliding groove, so that the top frame is fixed. The bottom shell, the top frame and the transparent film are utilized to seal the keys of the oscilloscope body, meanwhile, checking and using of the keys and a screen of the oscilloscope body are not affected, and therefore the effect that the hand sweat can be separated from the keys of the oscilloscope body on the premise that using of the oscilloscope body is not affected is achieved, and the bottom shell, the top frame and the sealing plate are hard objects and are convenient to carry. After a sharp object penetrates through the rubber sleeve, the sharp object is prevented from continuously penetrating, so that the oscilloscope body is further protected.

The invention provides a multifunctional connecting rod flexible mechanical arm and relates to the technical field of mechanical arms, the multifunctional connecting rod flexible mechanical arm comprises a base, a mechanical arm body is arranged on the surface of the base, the output end of the mechanical arm body is connected with a convenient disassembly and assembly assembly, the convenient disassembly and assembly assembly comprises a connecting frame, and the front surface of the connecting frame is electrically connected with a quick plug. Fixing blocks are connected to the bottoms of the two sides of the connecting frame correspondingly, and two first springs are arranged in each fixing block. According to the mechanical arm, when the gripper main body of the mechanical arm main body needs to be replaced, the gripper main body can be quickly disassembled by pulling the handles towards the two sides, and then the gripper main body needing to be replaced is inserted into the bottom of the connecting frame to be quickly mounted and fixed, so that the mounting efficiency of the gripper main body is improved; and the problem that replacement is very inconvenient due to the fact that the gripper body is fixed in a bolt connection mode is solved, and the convenience of replacement of the gripper body is improved.

The utility model relates to the technical field of ceramic machining, and discloses a cutter for machining a ceramic green body thin-wall circular ring piece. The cutter for machining the ceramic green body thin-wall circular ring piece comprises a machining table, and an equipment base is arranged on the right side of the machining table. By arranging the first modeling cutter and the second modeling cutter, the positions of the first modeling cutter and the second modeling cutter are adjusted according to the size of the ceramic green body circular ring piece, after adjustment, the first modeling cutter and the second modeling cutter move downwards and are located on the inner wall and the outer wall of the ceramic circular ring piece, at the moment, the rotary table is pushed to rotate, and the ceramic circular ring piece is driven to rotate; the first modeling cutter and the second modeling cutter can be used for engraving and modeling, the first modeling cutter and the second modeling cutter are suitable for small thin-wall circular ring pieces, the machining time is shortened through synchronous machining of the two cutters, the requirement for concentricity of the inner structure and the outer structure is met, and meanwhile vibration damage to thin-wall products during single-side machining of the cutters is reduced.

The utility model relates to the technical field of fire-fighting boots, in particular to a firefighter emergency rescue protective boot which comprises a boot sole, a toe cap, a boot vamp, a heel and a boot leg which are integrally arranged, and a waterproof sock is jointly attached to the inner surface layer of the toe cap, the inner surface layer of the boot vamp and the inner surface layer of the boot leg. A protective sleeve used for preventing fine particles from entering the boot is detachably arranged at the top of the boot leg, and by means of the arrangement of waterproof socks on the inner surface layers of the toe cap, the boot vamp and the boot leg, it is guaranteed that when a fireman works in the environments such as wading, the foot cannot be soaked by water, and the safety of the fireman is guaranteed. The waterproof sock also has the functions of high vapor permeability, chemical protection, blood transmission resistance and viral pathogen resistance; meanwhile, the protective sleeve is arranged, so that fine particles such as gravels and glass fragments are prevented from entering the boot, and the damage caused by friction of the particles to the foot is avoided.

The application discloses a battery shell, a battery device and a power tool assembly, and belongs to the technical field of batteries. The battery shell comprises a shell body for accommodating battery units of the battery device and at least two reinforcing structures, one side of the shell body in a first direction is provided with an electric energy slot, each reinforcing structure is arranged on an outer wall of the shell body, the at least two reinforcing structures comprise a first reinforcing structure and a second reinforcing structure, the first reinforcing structure and the second reinforcing structure are respectively located on two sides of the shell body along a second direction, and the first direction and the second direction intersect; each reinforcing structure comprises a first section and a second section connected with the first section, the first section extends along the first direction, the second section is located on a side of the shell body away from the electric energy slot, and the second section extends along the second direction; a plurality of holes are arranged on the first section and the second section, and the holes are arranged at intervals. The scheme can improve the problem that the shell body is deformed due to excessive impact.

The utility model discloses an unmanned aerial vehicle charging station with a damping structure, which comprises a cab, a frame is mounted at the bottom of the cab, a vehicle body is arranged in the frame, a correcting component is mounted in the vehicle body, a damping component is mounted in the vehicle body, and the damping component is mounted in the damping component. A sliding rail is fixedly connected to the back face of the cab, an electric sliding block is arranged in the sliding rail, a folding frame is installed on the outer side of the electric sliding block, and a cover plate is installed at one end of the folding frame. According to the unmanned aerial vehicle charging station with the damping structure, a three-stage buffering damping design is adopted through the damping assembly, a three-dimensional damping protection system is formed through the synergistic effect of the buffering rods, the buffers and the damping springs, and when an unmanned aerial vehicle lands, the buffering rods made of high-strength alloy firstly make contact with a vehicle body, and the buffering rods make contact with the vehicle body; impact force is primarily dispersed through the unique honeycomb-shaped buffering platform.

The utility model relates to the technical field of vehicle pin bush assembly, and discloses cinder ladle vehicle pin bush assembly equipment which comprises a grip and a stress barrel welded to one end of the grip. The knocking surface ring is integrally formed at one end of the stress barrel; the damping anti-skid sleeve sleeves one end of the grip and is used for damping the holding arm; through cooperation of the knocking face ring, the stress barrel, the grip and the damping anti-skid sleeve, an operator can hold the damping anti-skid sleeve on the grip to reduce vibration damage caused by hammering when the pin bush is installed on the pin shaft, the comfort degree of holding the tool is increased, meanwhile, the stress barrel can protect the pin bush, and the safety of the tool is improved. Threads on the pin shaft are prevented from deforming due to the fact that the pin sleeve is installed on the pin shaft, the quality of the pin sleeve installed on the pin shaft is improved, the length of the grip enables a knocking point to be far away from an operator, and safety during operation is improved.