42results about How to "Avoid destructive phenomena" patented technology

The invention relates to a concrete multi-factor durability test device under the common effect of tensile stress and environment, wherein, the lower part of a pull rod (8) is connected with a lower pull plate (13), the upper part of the pull rod (8) penetrates an upper pull plate (7) and a limit plate (4), the upper pull plate (7) is penetrated on the pull rod (8) to be fixed by a lock nut (6), a screw cap (2) presses a stress sensor (3) on the limit plate by a spherical screw rod (1), a spring (5) is sheathed on the spherical screw rod (1) and is positioned between the limit plate and the upper pull plate, an upper stretching chuck (91) and a lower stretching chuck (92) are arranged between the upper pull plate and the lower pull plate (13), the upper stretching chuck (91) is connected with the spherical head part of the spherical screw rod (1), the lower stretching chuck (92) is connected with the spherical head part of a spherical pull rod (12), a dumbbell-shaped concrete sample (10) is positioned between the upper stretching chuck (91) and the lower stretching chuck (92), the dumbbell-shaped concrete sample is held by the stretching chucks, both sides of the dumbbell-shaped concrete sample (10) are provided with constant force holding instruments (11), and the constant force holding instruments are connected with a non-metallic ultrasonic testing instrument (14).

The invention relates to a seabed ore sand pulling sucker, comprising a volute grading cyclone, a high-pressure pump and a jet water gun, wherein an inversion form is adopted for the volute grading cyclone; an underflow opening is formed above the volute grading cyclone, and respectively connected with a raw pulp conveying pipe and a high-pressure water pipe through a tee joint; the high-pressure water pipe led out from the high-pressure pump is additionally communicated with the jet water gun through a tee joint of a rotary sleeve. Compared with the prior art, the seabed ore sand pulling sucker has the beneficial effects that 1) the functions of mining and haling, sand absorbing, sand conveying, concentrate outputting and tailings backfilling are integrated into a whole; 2) raw ore collecting and sorting functions are achieved by using the volute grading cyclone, and the seabed ore sand pulling sucker is high in production rate and beneficial to large-scale production; 3) the haling and pulp conveying functions are simultaneously achieved by high-pressure water jet, and the utilization rate is high; 4) the seabed ore sand pulling sucker is simple in structure, convenient to use and reliable to operate; 5) tailing slurry is discharged by adopting an L-shaped sand discharge pipe, and the ecological environment destruction phenomenon caused by direct emission is avoided.

The invention relates to the technical field of water treatment, and particularly relates to a movable sedimentation basin convenient to clean and used for wastewater treatment. The sedimentation basin includes a rainproof cover, a sedimentation basin main body, electric telescopic bars, a supporting bar, a bearing plate and idler wheels. The rainproof cover has a rectangular structure. A water feeding pipe penetrates the left side surface of the sedimentation basin main body, and a water discharging pipe is disposed at the right side surface of the sedimentation basin main body. Rotating shafts are disposed right above the water feeding pipe and the water discharging pipe. Bottoms of free ends of the rotating shafts are provided with the electric telescopic bars a. The inside bottom of the sedimentation basin main body is provided with a scraping plate. The bottom of the sedimentation basin main body is connected to the bearing plate through the electric telescopic bar and the supporting bar. Bottom four corners of the bearing plate are provided with the idler wheels. The sedimentation basin can avoid basin structure damage caused by long-term solarization and acid rain erosion, thus prolonging the service lifetime of the sedimentation basin. The sedimentation basin is convenient to clean, and has advantages of good mobility and capability of saving the cost.

The present invention relates to a method of manufacturing an environmental-friendly insulated aluminum case for aluminum electrolytic capacitors and lithium batteries. The method satisfies appearance and insulation property requirements of the aluminum electrolytic capacitors, the lithium batteries and ordinary batteries; reduces environmental pollution caused by waste gas generated from burning used PVC and PET; and reduces plant energy consumption and costs, and manufacturing processes. An insulation film is coated on the inner cylinder surface of a cylinder of a workpiece, thereby preventing abnormity of short circuit caused by the contact between a placed part and the cylinder, and improving quality and efficiency.

The invention discloses a thin film pressure sensor which comprises a body, the body is a metal block, a cylindrical metal block protrusion is arranged in the center of the top of the body, a first cylindrical cavity is formed in the center of the cylindrical metal block protrusion, a second cylindrical cavity is formed in the bottom of the body, and the second cavity and the first space are separated through a thin film. A pressing plate is arranged at the top of the first cavity; according to the invention, the first cavity is deformed through the pressing plate, so that the film is deformed, no other external force directly acts on the film, and the measurement precision of the resistance strain gauges is ensured. And the resistance strain gauge is arranged on the annular surface, exceeding the first cavity, of the top of the second cavity, so that the damage phenomenon of overall shearing caused by overload can be avoided, and the measurement reliability of the overall device under extreme working conditions is improved.

The invention relates to a device for improving the floating transportation water sealing and negative pressure sinking stability of a bucket foundation. The device is used for auxiliary construction of offshore wind power foundation structures and comprises the bucket foundation, top cover anchoring blocks, anchoring ropes, plumb heavy blocks and water seepage interlayers. A circular bin body is arranged in the middle of the bucket foundation. A plurality of bin dividing plates are distributed on the periphery of the bucket foundation in the radial shape to form a trapezoidal bin body. The top cover anchoring blocks are located at the lower side of a top cover of the bucket foundation, and the lower portion of each top cover anchoring block is connected with one corresponding anchoring rope. The lower end of each anchoring rope is connected with the corresponding plumb heavy block. The water seepage interlayers are attached to the corresponding plumb heavy blocks. By the adoption of the device for improving the floating transportation water sealing and negative pressure sinking stability of the bucket foundation, water body impedance of the bucket foundation under the wind sea swinging action is effectively enhanced, the bucket foundation is forced to achieve the effect that gas in a bucket cannot quickly exchange with the outside water body in the shaking process, gas tightness of the bucket foundation in the floating transportation process is guaranteed, the floating transportation water sealing stability is enhanced, and safety performance of the bucket foundation in the floating transportation process is ensured. In addition, the device is simple in structure, convenient to design, manufacture and install, low in cost and high in practicability.

The invention provides a shared bicycle handover and parking method and a shared bicycle handover identification system, and belongs to the technical field of vehicle management. The shared bicycle handover and parking method comprises the steps of: collecting the geographical position information of a user terminal; obtaining demand information and identifying the demand information of the user terminal at the appointed time and place; and, according to the pre-set demand judgement standard, analyzing and identifying the demand information, and executing the corresponding processes of: judging whether the obtained demand information is the demand information identified at the appointed time and place or not, if so, pushing a corresponding parking process and/or a handover management process of a shared bicycle, and guiding a shared bicycle user to hand over or park after a system server is connected with the user terminal, so that the shared bicycle is in a controllable state in the whole using and parking process. The shared bicycle handover and parking method and the shared bicycle handover identification system provided by the invention have the positive effects that: management of the shared bicycle is in a fully controllable state; the torsion and destruction phenomenon on the urban traffic order and the community environment is avoided; and the stealing and destruction condition can be reduced.

The invention provides modified anti-static PC plastic. A preparation method of the modified anti-static PC plastic comprises the following steps: step a, preparing anti-static particles; and step b, adding 2-8 parts by weight of antistatic particles and 100 parts by weight of a PC material into a twin-screw extruder for melt extrusion granulation at the extrusion temperature of 180-210 DEG C to obtain the modified PC plastic, the antistatic particles comprise the following components in parts by weight: 16-20 parts of polyether ester amide, 3-8 parts of a methacryloyloxyethyl trimethyl ammonium chloride polymer, 2-5 parts of maleic anhydride, 8-15 parts of a PC material and 5-12 parts of an ABS material. Harm of static electricity to a human body can be reduced, and static electricity generated when cargoes are carried and unloaded is reduced. In the petrochemical industry, the risks of combustion, explosion and the like caused by static electricity can be prevented. In the industries of electronics, instruments and the like, the problem that electronic components are damaged or aged due to static electricity can be prevented.

The invention discloses a universal self-recovery anti-collision ground pile and belongs to the technical field of mechanical structures. The universal self-recovery anti-collision ground pile disclosed by the invention is capable of bearing impact and grinding of vehicles from any direction, and can be recovered automatically once an external force is vanished, and the phenomenon that a conventional road isolation ground pile is damaged by vehicle impact and grinding is avoided; the universal self-recovery anti-collision ground pile disclosed by the invention is convenient to mount and dismount, low in cost, safe, reliable, long-lasting and durable.

This invention discloses a wet type air cooling condenser, which contains frame, end board connected with two sides of frame, coil pipe, radiation fins on coil pipe, cover board on top of frame, blower fan, vertical pre cooling board in outer side of coil pipe, water separator on pre cooling board, water collecting trough, circulation water pipe and water pump. Said invention raises radiation efficiency, saves radiation fins material and cost.

The invention discloses an assembled PC component door/window system which comprises a wall body, a mounting hole, a door/window frame and connecting parts, wherein the mounting hole is formed in a base body of a wall body; the door/window frame is arranged at the mounting hole; the door/window frame is fixedly connected with the wall body through the connecting parts; the mounting hole is formed in the wall body; the mounting hole comprises a groove hole; the groove hole is a groove formed in the longitudinal direction of the wall body; one end of the groove is opened; the groove hole is filled with a sealing adhesive. The assembled PC component door/window system is relatively convenient, rapid and flexible in connection mode, the door/window frame is in good matching relationship with an assembled PC component, convenience can be brought to factory production and on-site mounting, and quality control can be facilitated; meanwhile, due to multiple seals, the risk of water leakage can be reduced, cross of construction procedures and specialty procedures can be reduced, and cross pollution of construction can be avoided.

The invention discloses a layered rock-soil pressing and pulling combined anchor rod and a using method thereof. The layered rock-soil pressing and pulling combined anchor rod comprises tension anchor bars, pressure anchor bars, a bearing plate, sleeves and positioning supports, the tension anchor bars and the pressure anchor bars are located at the same side of the bearing plate, the tension anchor bars and the bearing plate are vertically connected in a spot welding manner, the pressure anchor bars are sleeved with the sleeves, and the pressure anchor bars, the sleeves and the bearing plate are vertically and fixedly connected; and the positioning supports are fixedly connected with the tension anchor bars and the sleeves and are evenly distributed in the length direction of the anchor bars. When the combined anchor rod is used, a rock-soil layer on the periphery of an anchoring section is measured firstly, the number and the diameter of the tension anchor bars and the pressure anchor bars are determined according to the layering and shearing strength conditions of the rock-soil layer, and the combined anchor rod is manufactured and then placed into an anchor hole for grouting. By changing the diameter and the number of the anchor bars of the pressing and pulling combined anchor rod, loads are distributed more reasonably on the premise of being evenly distributed, the uplift bearing capacity of the anti-floating anchor rod is improved, and the situation that due to stress concentration, an anchoring body is damaged, and consequently the overall structure is damaged is avoided.

The invention discloses a protection device for the safe charging of an electric automobile. The protection device comprises a charging pile shell, a display screen, a connector sealing groove body, acharging connector, an anti-collision fence, a sliding way, a pushing air cylinder, a shielding plate, a luminosity sensor, an illuminating lamp, a pulley, a filter screen, an exhaust fan, an air blower, a heater, an electric appliance mounting frame, a controller, a mainboard, a charger, a temperature sensor and a humidity sensor. The beneficial effect is that, the unrepairable damage phenomenonis effectively avoided. the charging connector is not easy to age, and the service life of the charging connector is long; the charging port is provided with a shielding device, so that the chargingport is not easy to leak electricity; the phenomenon that the charging pile is plugged into a socket by hand is avoided, and the safety of the charging pile used at night is effectively improved; thetemperature in the charging pile shell is reduced, and the burning phenomenon of electric appliances in the charging pile shell is effectively prevented; the drying efficiency in the charging pile shell is improved, and the short circuit phenomenon of electric appliances in the charging pile shell is effectively prevented.