92results about How to "Quick dismantling" patented technology

The utility model discloses a laminated slab strip reinforcing tool which comprises two laminated slab bodies, an upper reinforcing plate is movably arranged above the two laminated slab bodies, a lower reinforcing plate is arranged below the two laminated slab bodies, and two reinforcing assemblies are arranged between the upper reinforcing plate and the lower reinforcing plate. The reinforcing assembly comprises a rectangular plate, a threaded rod, a connecting rod, a limiting block, an inner threaded cylinder, a PVC pipe, a connecting block and a bearing, the threaded rod is fixedly installed on the lower surface of the upper reinforcing plate, the outer side of the threaded rod is movably sleeved with the PVC pipe, the top end of the PVC pipe is fixedly connected with the lower surface of the upper reinforcing plate, and the top end of the PVC pipe is fixedly connected with the lower surface of the upper reinforcing plate. According to the device, the upper reinforcing plate and the lower reinforcing plate can be conveniently and rapidly reinforced and disassembled through the arranged inner threaded cylinder and the threaded rod, the position of the inner threaded cylinder can be conveniently limited through the arranged bearing, the arranged connecting block and the arranged connecting rod, and the phenomenon that the inner threaded cylinder is lost is effectively avoided.

This utility model relates to a self-cleaning air inlet protection device and an air handling unit, including a main body assembly and a self-cleaning assembly. The main body assembly includes a first connecting member, a second connecting member, and a protective net. Both the first and second connecting members are cylindrical and connected by a snap-fit ​​structure. The protective net is hemispherical and connects to the second connecting assembly. The self-cleaning assembly includes multiple support rods, a drive shaft, an impeller, and a cleaning brush. The impeller drives the cleaning brush via the drive shaft to clean the convex surface of the protective net. This utility model's self-cleaning air inlet protection device can prevent debris from adhering and is easy to install and disassemble.

The utility model discloses a cable bent tower suitable for dismantling an old arch bridge with structural damage through a cable-stayed buckling method, and belongs to the field of cable bent towers, the cable bent tower comprises two groups of tower frame mechanisms, the two tower frame mechanisms are fixedly connected through a transverse link, each tower frame mechanism comprises a standard knot, and the surface of each standard knot is fixedly connected with a cross beam; through cooperative use of all the devices, the device is simple in structure and convenient to operate, the base, the standard section and the buckling section mechanism are adopted, transverse connection is added at the corresponding height, the sections are connected through flange plates, the requirement for the bearing capacity performance of the inhaul cable in the cable-stayed buckling system is met, meanwhile, rapid assembly and disassembly can be carried out, and the construction cost is reduced. The base, the standard knot, the buckling and hanging knot mechanism, the cross beam and the transverse link are prefabricated in a steel structure processing factory, and the processing precision and quality of the steel structure are higher than those of field processing.

The utility model belongs to the technical field of ventilation pipelines, and particularly relates to an air outlet channel hoisting structure for a central air conditioner, which comprises a pair of mounting plates, and lifting components are arranged in the mounting plates; the bottom of the lifting assembly is rotationally connected with a fixing plate. A sliding groove is formed in the inner wall of the fixing plate. The end of the sliding groove is slidably connected with a baffle. A clamping block is arranged in the sliding groove in a sliding fit mode. The bottom of the clamping block is fixedly connected with a ventilation pipeline body. The sliding groove is in a T shape. Through cooperation of the sliding grooves and the baffles, the clamping blocks can be quickly fixed through the baffles after being inserted into the fixing plates, and meanwhile, the T-shaped sliding grooves can be automatically supported after being inserted, so that the ventilation pipeline body is more convenient and faster to mount; and meanwhile, when the ventilation pipeline body is overhauled, the ventilation pipeline body can be quickly disassembled, and therefore convenience of the ventilation pipeline body is improved.

The utility model relates to the technical field of spine external support, and discloses novel environment-friendly wastewater heavy metal removal equipment, which comprises an equipment main body, the equipment main body comprises a removal module, the removal module is arranged on a bottom plate, the removal module comprises a removal barrel, the removal barrel is movably arranged at the top end of the bottom plate, and the removal barrel is arranged on the bottom plate. The removal barrel is used for filling and temporarily storing wastewater to be treated; the driving gear is fixedly mounted on the outer surface of the removing barrel, and the driving gear is used for directly driving the removing barrel to perform rotary centrifugation; the motor is fixedly installed on one side of the top end of the bottom plate, a driving wheel at the top end of the motor is connected with the driving gear in an engaged mode, and the motor is used for directly providing power needed by high-speed rotation and centrifugation for the driving gear; by arranging the removal module, the removal barrel adsorbs heavy metal particles in the wastewater to the surface of the barrel wall, an electrostatic adsorption net generates static electricity after being electrified, and the electrostatic adsorption net has particle adsorbability, so that the heavy metal particles are adsorbed and removed.

The utility model relates to the technical field of television tuners, and discloses an environment-friendly television tuner with a degradable shell, which comprises a shell, a C-shaped groove is arranged at the top of the outer surface of the shell, a C-shaped strip is inserted into the inner surface of the C-shaped groove, and a sliding cover is fixedly connected to the top end of the outer surface of the C-shaped strip. The inner surface of the sliding cover is slidably connected with the top of the outer surface of the shell, an arc-shaped protruding block is fixedly connected to the inner surface of the sliding cover, a groove is formed in the top of the outer surface of the shell, the outer surface of the arc-shaped protruding block is connected with the inner surface of the groove in a clamped mode, a connecting assembly is arranged on the outer surface of the shell, and the connecting assembly comprises a threaded head. According to the utility model, the C-shaped groove is connected with the C-shaped strip in an inserted manner, so that the stability and guidance quality of the sliding cover are ensured. Friction force is increased through anti-skid lines outside the sliding cover, the arc-shaped protruding blocks can be disengaged from the grooves to be clamped through shifting, the sliding cover can be rapidly disassembled without tools, and the overhauling efficiency is improved.

The utility model discloses a water tank for hydrogen-rich water, and relates to the technical field of hydrogen-rich water storage, the water tank comprises a water storage tank, the lower side of the water storage tank is fixedly connected with four supporting legs which are distributed in a rectangular shape, and the front side and the rear side of the bottom of the water storage tank are fixedly connected with two water passing pipes which are distributed front and back; two ventilation pipes distributed left and right are fixedly connected to the positions, close to the left side and the right side, of the lower side of the water storage tank, connecting mechanisms are fixedly connected to the lower sides of the four ventilation pipes, and damping mechanisms are fixedly connected to the lower sides of the connecting mechanisms. According to the water tank for the hydrogen-rich water, the state of the shock absorber is adjusted through the telescopic rod, then shock borne by the water storage tank is absorbed through the shock absorber, influences of external shock on the hydrogen-rich water in the water storage tank are avoided, and the storage time of the hydrogen-rich water is prolonged; meanwhile, the situation that the hydrogen in the hydrogen-rich water is separated from the water, the pressure in the water storage tank is too large, and safety is affected is avoided.

The utility model discloses a fire-fighting lighting lamp evacuation indicating device, including warning box, the one side of warning box is hinged with warning board, be provided with pilot lamp on the warning board, the inside fixed connection of warning box has PLC controller, the one side of warning box is provided with power supply component the four sides of warning box are provided with auxiliary evacuation component, the inside of warning box is provided with the sliding slot, the sliding block is connected on the sliding slot with sliding, the one side fixed connection of sliding block has the connecting plate, the one side fixed connection of connecting plate has the lighting lamp. In the utility model, through auxiliary evacuation component makes it in the emergency scene such as fire, if the environmental smoke is bigger and leads to the directivity signal of traditional pilot lamp to be shielded, or personnel is difficult to judge the accurate position of escape hole through pilot lamp because of unfamiliar environment, the LED lamp area can extend to the outside of warning box through the first slot, forms the light guide path of continuous, clear, directly guides the personnel accurate to the escape hole.

The utility model relates to the field of concrete guardrail production, and discloses an opening and closing device of a concrete guardrail pouring mold, which comprises a support, two connecting rods are rotatably connected to the inner side of the support, a mold opening assembly is mounted on the inner side of the support, a dust collection assembly is mounted on the rear side of the support, and the mold opening assembly comprises a mold and four hydraulic cylinders. The bottom of the mold is slidably connected to the interior of the support, the left side, the right side and the rear side of the mold are fixedly connected with a first spring fixing shell, the inner wall of the fixing shell is fixedly connected with a plurality of first springs, and a clamping block is fixedly connected between the exteriors of the first springs. According to the utility model, the hydraulic cylinder drives the rotating plate to get close to the mold and extrudes the clamping block to compress the spring I, when the rotating plate is completely attached to the mold, the spring I pushes the clamping block to pop up and block the rotating plate, and the hydraulic cylinder drives the rotating plate to turn over and unfold, so that the left side, the right side and the rear side of the mold are opened, the demolding is realized, and time and labor are saved; the fatigue degree of workers is relieved.

This utility model discloses a trench support device for municipal pipelines, relating to the field of municipal construction technology, including a baffle assembly, a cross brace assembly, and a protective cover. The cross brace assembly includes a sleeve and a telescopic rod. The protective cover includes an N-shaped plate and a snap-fit ​​vertical plate; the N-shaped plate can be adapted to snap onto the outer periphery of the sleeve, and the snap-fit ​​vertical plate can be adapted to snap onto the outer surface of the telescopic rod. The protective cover also includes a first rotating base plate and a second rotating base plate; the protective cover also includes a counterweight strip and a magnetic strip; one end of the first rotating base plate is rotatably connected to the bottom end of the first vertical plate, and the other end is fixedly connected to the magnetic strip; one end of the second rotating base plate is rotatably connected to the bottom end of the second vertical plate, and the other end is fixedly connected to the counterweight strip; the magnetic strip and the counterweight strip can attract each other to fit together to seal the bottom of the inner cavity of the protective cover. In this utility model, by fastening the protective cover to the outer periphery of the cross brace assembly, splashed sticky impurities will adhere to the protective cover rather than the telescopic rod, thus enabling the telescopic rod to extend and retract smoothly.

The present application relates to steel formwork turning plate technical field, especially to a kind of steel formwork turning plate structure for power plant chimney and use method.It includes fixed seat, the fixed seat is provided with symmetric and evenly distributed through-hole, the fixed seat is fixed with first hydraulic rod, the fixed seat is slidably connected with mounting seat, the mounting seat is slidably connected with first steel plate, the first steel plate is provided with symmetric and evenly distributed through-hole, the mounting seat is fixed with second hydraulic rod, the first steel plate is rotatably connected with symmetric distribution second steel plate, the first steel plate is hinged with symmetric distribution first fixed shell, symmetric distribution the first fixed shell is slidably connected with first sliding rod on opposite side.The first sliding rod of the present application pushes adjacent second steel plate to produce rotation, so as to change the overall arc of the device, so that the device can adapt to the construction of various diameter chimneys, reduce the formwork cost when chimney is built.

The invention relates to an ultraviolet lamp fixing structure, a disinfection and sterilization assembly, an air conditioning system and a vehicle, and belongs to the technical field of automobiles. The ultraviolet lamp fixing structure comprises a main body part, at least two limiting parts and a first fixing piece, the body portion has a first surface. The at least two limiting parts are distributed at intervals in the first direction, the first ends of the at least two limiting parts are connected to the first side of the main body part, limiting grooves are formed between the second ends of the at least two limiting parts and the first surface, and each limiting groove is opened towards the second side of the main body part; the first side and the second side of the main body part are the two sides of the main body part in the second direction respectively, and the second direction is perpendicular to the first direction. The second side of the main body part is provided with at least one fixing hole. The first fixing pieces are rod-shaped and are in one-to-one correspondence with the fixing holes of the main body part. According to the ultraviolet lamp fixing structure, the disinfection and sterilization assembly, the air conditioning system and the vehicle, reliable installation of the ultraviolet lamp can be achieved, and meanwhile disassembly and assembly of the ultraviolet lamp are facilitated.

This utility model relates to the field of motor technology and discloses a caseless motor, including a stator, a rotor rotatably connected inside the stator, a fixed housing one fixedly connected to the left side of the stator, a fixed housing two fixedly connected to the right side of the stator, and a fan blade fixedly connected to the right side of the rotor. A heat dissipation mechanism is provided on the outer wall of the stator to dissipate the heat generated by the caseless motor during operation. A fixing mechanism is provided at the bottom of the stator for quickly fixing the caseless motor. The heat dissipation mechanism includes heat dissipation components. In this utility model, the heat generated by the caseless motor is conducted through multiple heat sinks on the outer wall, while multiple heat dissipation holes inside the fixed housing one and fixed housing two further dissipate heat, achieving better heat dissipation for the caseless motor and preventing it from overheating and becoming unusable during operation, thus affecting work efficiency.

The utility model relates to the technical field of screening devices, in particular to an automatic sorting and screening device for valve positioner springs, which comprises a screening machine and a camera, a mounting seat is arranged on the front side of the upper portion of the screening machine, and the camera abuts against the upper portion of the mounting seat. And a locking piece used for locking the camera is arranged in the mounting base, a feeding machine is arranged on the right side of the upper portion of the screening machine, and a transferring piece used for transferring the to-be-detected spring is arranged on the right side of the upper portion of the screening machine. Through cooperation of a motor, a first crank rod and a second crank rod, first transfer rods can be pushed to periodically rotate, the two first transfer rods push a second transfer rod to drive a connecting rod and a clamp to get close to a feeding machine to take out a to-be-detected spring, then the second transfer rod is pushed to move towards a detection disc, and the to-be-detected spring is released when the clamp gets close to the upper portion of the detection disc. Therefore, the function of orderly feeding the to-be-tested springs can be realized.

The utility model discloses a chicken bone extract production device containing enzymolysis and solid -liquid separation function relates to the technical field of extraction of chicken bone material, including frame, the upper portion of frame is installed with enzymolysis jar, and the lower portion is installed with separation rotating part and vibrating screen sorting part respectively, separation rotating part includes sorting filter cartridge and support box, and sorting filter cartridge is installed in support box, be provided with filter screen on sorting filter cartridge, one end of sorting filter cartridge is provided with feed pipe orifice, and the other end is closed setting, the end portion of support box is installed with slewing gear away from feed pipe orifice of sorting filter cartridge, vibrating screen sorting part includes front pipeline, fixed shell and rear pipeline, and is installed with vibrating screen in fixed shell, and the upper and lower of vibrating screen are all installed with guide pillar, is installed with vibrating part on fixed shell, is installed with backflushing pipe orifice on rear pipeline, and the opening direction of backflushing pipe orifice sets up towards vibrating screen, to solve the technical problem that filter cartridge is difficult to remove and clean in small space.

The utility model relates to a novel cover plate for a power distribution bus starting end box and a box body structure of the starting end box, the upper part of a main plate of the cover plate is provided with a plurality of upper mounting holes corresponding to tightening bolts, and the upper mounting holes are provided with large holes through which bolt heads of the tightening bolts pass and small holes which are positioned at the upper parts of the large holes and are used for limiting screw rods of the tightening bolts; a plurality of lower groove holes corresponding to the positioning bolts are formed in the bottom of the main plate; the box body comprises a top plate, a bottom plate, a surrounding plate and a cover plate, an upper flange of the top plate is fixed to the periphery of the surrounding plate, and tightening bolts are installed on a plurality of upper threaded holes in the upper flange, located on one side of the opening, of the top plate; the lower turned edge of the bottom plate is fixed to the periphery of the surrounding plate, positioning bolts are installed on a plurality of lower threaded holes in the lower turned edge, located on one side of the opening, of the bottom plate, the upper installation holes in the cover plate correspond to the tightening bolts, and the lower groove holes correspond to the positioning bolts. The device is simple in structure, is convenient to dismount, mount and operate, and can solve the risk that the bolt falls into a lower cabinet.

The application relates to the field of environment-friendly pipeline technology, and discloses a light-weight environment-friendly pipeline connector, which comprises a connecting pipe body, a sliding groove is arranged on the side surface of the connecting pipe body, a ring-shaped groove is arranged on the inner wall of the sliding groove, a clamping groove is arranged on the inner wall of the ring-shaped groove, a clamping ring is clamped on the inner wall of the clamping groove, and a fixing cylinder is fixedly assembled on the side surface of the clamping ring. The light-weight environment-friendly pipeline connector is used in cooperation with the clamping ring and the sliding groove, the clamping ring is passed through the inner wall of the sliding groove until the side surface of the clamping ring is overlapped with the inner wall of the ring-shaped groove, then the fixing cylinder is rotated, at this time, the outer edge of the clamping frame is slidably connected with the outer edge of the connecting pipe body, the clamping frame is pulled away from the inner wall of the ring-shaped groove, until the side surface of the clamping block is clamped with the inner wall of the connecting pipe body, at this time, the inner wall of the arc-shaped plate is overlapped with the outer edge of the connecting pipe body, and the side surface of the clamping ring is overlapped with the inner wall of the clamping groove, so that the connecting pipe body and the butt joint pipe are stably butt jointed.

The application provides a new energy automobile driving motor production winding machine, which comprises a base, a motor seat and a fixed plate are fixed on the base respectively, a supporting assembly is movably installed on the side of the motor seat, a movable plate is movably installed on one side of the fixed plate, fixed grooves are formed in the inner walls of the movable plate and the fixed plate, clamping plates are movably installed on the inner walls of the fixed grooves, wire wheels are movably installed between the clamping plates, the supporting assembly comprises a mounting seat, and a fixing seat is fixed on the mounting seat. When the application is used, the supporting rod and the fixing rod are used for limiting and adjusting the winding width of the coil, in addition, the threaded rod drives the connecting block to slide in the connecting groove, the connecting block drives the arc-shaped block to move outward to adjust the diameter of the winding, and finally, the fixing rod and the supporting rod slide horizontally in the opening, and the sliding of the fixing rod and the supporting rod facilitates the quick dismounting of the coil from the arc-shaped seat.

The utility model relates to a transfer machine technical field more specifically, relate to a novel crossheading transfer machine tail device. Including upper shield subassembly, side shield subassembly, apron subassembly, side pressure block subassembly and tail frame, tail frame sets up in the bottom of upper shield subassembly, side pressure block subassembly sets up between upper shield subassembly and tail frame both sides position, apron subassembly sets up between both sides side pressure block subassembly, apron subassembly is located between upper shield subassembly and tail frame, side shield subassembly sets up on side pressure block subassembly. The device can realize the efficient operation of chain wheel overhauling, oiling, replacement operation, realizes the replaceable of wing plate and the clear back coal operation of tail simultaneously. The utility model mainly applies to the crossheading transfer machine tail aspect.

The utility model relates to milling technology field discloses a kind of milling is used to collect device of scrap, including tool main body, the top left side of tool main body is fixedly connected with first fixed block, the inner wall of multiple first fixed block is equipped with fixed groove, the inner wall of fixed groove is slidably connected with first fixed rod, the adjacent side of multiple first fixed rod is fixedly connected with filter plate, the inner wall of first fixed block is rotatably connected with, the outer wall is rotatably connected with first rotary plate, the top of first rotary plate is fixedly connected with second fixed rod, the inner wall of second fixed rod is equipped with first limit slot. In the utility model, when installing filter plate, make filter plate drive first fixed rod to move, move to the inner wall fixed groove of first fixed block, after filtering scrap, avoid scrap residue, guarantee collection efficiency stability, substantially shorten maintenance time, improve processing continuity.

This utility model discloses a cutting tool for quickly removing cylinder clamps, including a base, a grooving device, and a round sleeve positioning device. The base integrates the grooving device and the round sleeve positioning device into one unit. The grooving blade is driven by a built-in power and extends into the sleeve body to perform a circumferential equal-depth cut on the cylinder, destroying its entire circumferential binding force in one go, reducing the removal time from several minutes to several seconds. The inner diameter of the sleeve body matches the outer diameter of the cylinder, forming a self-centering positioning. The cutting depth deviation is ≤0.1 mm, completely avoiding the internal bushing and eliminating the risks of chiseling damage, deformation, and splashing caused by traditional hammering. The transparent protective sleeve can be quickly installed and removed, and the cutting status can be observed in real time. The positioning device is connected to the base by fixing bolts, which facilitates the replacement of different specifications of sleeves, realizing multi-purpose use. This utility model is small in size, lightweight, and requires no external hydraulic or electrical control. It can utilize the power of existing grooving equipment on-site to achieve efficient, labor-saving, zero-damage, and highly consistent rapid removal, significantly improving production efficiency and operational safety.

The utility model discloses a kind of surveying and mapping instruments for water conservancy project with easy adjustment, it is related to water conservancy field, including round plate, the upper end of the round plate is fixedly connected with support column, the upper end of the support column is rotatably connected with rotating plate, the upper end of the rotating plate is fixedly connected with two clamping plates, surveying and mapping instrument main part is clamped between two clamping plates, the outside of the round plate is rotatably connected with multiple main support legs, the lower end of multiple main support legs is respectively fixedly connected with slave support leg, the utility model is surveyed and mapped instrument for water conservancy project with easy adjustment, rotate knob driving gear rotates by, drive limit rack to disengage from the limiting hole of stretching rod, at this time gravity block is under the slide of receiving sleeve column under gravity effect, realize rotating rod to push multiple main support legs to be synchronous and unfolded outward, form triangular stable support structure, reverse operation can be quickly folded when receiving, change the tedious adjustment mode of traditional tripod.

This utility model provides a curbstone removal device for installation on the bucket of an excavator. The device includes a base plate, multiple tooth tips, a shovel plate, and a connecting structure. The base plate fits into the bottom of the bucket, the tooth tips are detachably connected to the tooth seat at the front end of the bucket, the multiple tooth tips are fixedly connected to the top surface of the base plate, and the shovel plate is connected to one side of the base plate through the connecting structure, with the front end of the shovel plate extending beyond the front ends of the multiple tooth tips. By operating the excavator, the shovel plate can quickly remove curbstones, saving manpower and improving the efficiency of road construction. Moreover, the curbstones removed by the shovel plate are not easily damaged, have a high reuse rate, and can reduce material waste.

The utility model relates to the technical field of valves, in particular to a high-pressure gas valve which comprises a valve body, the two ends of the valve body are fixedly connected with connecting pipes respectively, the connecting pipes are sleeved with movable sleeves in a sliding mode, sealing pieces are arranged at the connecting positions of the connecting pipes and the movable sleeves, and positioning structures abutting against the movable sleeves are installed on the connecting pipes. A first connecting ring is fixedly connected to the side, away from the valve body, of the movable sleeve, a second connecting ring is arranged on the side, away from the movable sleeve, of the first connecting ring, a plurality of arc-shaped plates penetrate through the second connecting ring, the arc-shaped plates are fixedly connected with the first connecting ring, and a rotating ring is arranged on the side, away from the first connecting ring, of the second connecting ring. A pressure applying assembly for applying pressure to the rotating ring is mounted on the first connecting ring; bolts and nuts do not need to be disassembled one by one, a wrench does not need to be used for assisting disassembly, disassembly of the valve body can be conveniently and rapidly completed, and periodic inspection and maintenance of flange bolts are avoided.

This utility model discloses an easy-to-install stainless steel cabinet, relating to the field of cabinet assembly technology. Specifically, it is an easy-to-install stainless steel cabinet including a top plate, a first side plate, a sliding mechanism, a first bottom plate, a second bottom plate, a second side plate, a support partition, and a back plate. The first bottom plate and the second bottom plate are interlocked, and the retainer in the groove on the right side of the first bottom plate can limit the second bottom plate. The left side of the first bottom plate and the bottom of the first side plate are connected by a gear and rack meshing. After the first side plate is pushed to the target position, the screw in the center of the gear can be tightened to lock the gear and stop its rotation. The meshing rack cannot move either, indirectly fixing the first side plate and meeting diverse needs. At the same time, the side plate structure connected to the right side of the second bottom plate is the same as above. The first top plate uses an elastic clamping piece set at the bottom to quickly fix the vertical side plate, back plate, and the insert block at the top of the support partition, making disassembly and assembly quick and convenient, saving time, and making maintenance more convenient.

The application relates to the technical field of thin-walled part machining, and discloses a tool structure for improving flatness of a magnesium alloy thin-walled part, which comprises a flattening device for flattening treatment of the magnesium alloy thin-walled part, the flattening device is respectively provided with an upper die plate and a lower die plate, a plurality of detection pieces for detecting the thick positions of the pressed workpieces are arranged in the upper die plate, and a plurality of heating blocks for heating the workpieces at different positions are arranged in the lower die plate; the application effectively solves the problem that, when the planar shaping device heats the thin-walled part, the thin-walled part has different positions and thicknesses, the thin-walled part cannot be heated in a differentiated manner according to the requirements of different areas, the heating efficiency is low when heating, and energy is wasted.

This utility model discloses a plastic-coated steel pipe docking device suitable for low-temperature working conditions, including a low-temperature steel pipe docking structure comprising flanges, corrugated pipes, limiting screws, elastic connecting strips, limiting ear plates, and plastic-coated connecting steel pipes. One end of the plastic-coated connecting steel pipe is welded to the flange and the corrugated pipe, while the other end is free to move. The outer wall is covered with a 5mm aluminum silicate fiber coating. Limiting ear plates are provided around the two flanges, and limiting screws are inserted into the flared ear holes. The screws are bound together by the elastic connecting strip. During operation, the corrugated pipe is pre-compressed and positioned with the assistance of the limiting structure. After installation, the elastic function is released, and the axial extension of the corrugated pipe and the movement of the free end of the plastic-coated connecting steel pipe absorb the frost heave stress. The coating maintains the surface temperature to prevent embrittlement, thus solving the problem of frost heave damage in traditional rigid connections.

The utility model relates to the technical field of fixing devices, in particular to a temporary fixing device for preventing a steel structure from overturning. A connecting rod used for supporting and bearing is installed at the upper end of the supporting column. According to the utility model, the connecting components are mounted and fixed in an assembly manner and are assembled according to a certain rule, so that the temporary fixing work of the whole steel structure can be completed in a short time, the construction progress is accelerated, and the mounting and supporting are carried out during the assembly, and the complicated cutting damage operation is not needed during the disassembly; the method has the advantages that the components can be quickly detached, the overall construction efficiency is improved, the damage to the components can be reduced by detaching the assembly type components, the components can be reused after being simply cleaned and checked, material waste is reduced, and the components can be reused.

The invention is suitable for the technical field of electronic fences, and particularly relates to an exhibit touch detection electronic fence system capable of being modularly deployed, which comprises an electronic fence module, an electronic fence management base station, a handheld PDA (Personal Digital Assistant) and exhibit protection system software, the electronic fence modules are used for detecting the distance between each laser transmitter and an obstacle by transmitting laser and judging whether invasion exists or not according to distance value changes, and the electronic fence management base station is used for managing all the electronic fence modules. The device only needs to be placed on the ground or a table top around an exhibit, and cables do not need to be fixed and laid; the electronic fence module is powered by a built-in battery and communicates with a management base station by adopting a Bluetooth communication technology, and a power supply and communication cable does not need to be mounted, so that the electronic fence module can be quickly mounted and dismounted and only needs to be placed on the ground or a table top, and site environments such as the ground of an exhibition area cannot be damaged.